.quick-links{display:flex;flex-direction:column;gap:0.75rem}.quick-link-btn{text-decoration:none;padding:0.8rem;background:white;border-radius:8px;font-weight:600;color:#0284c7;display:flex;align-items:center;gap:0.5rem;transition:all 0.2s;box-shadow:0 2px 4px rgba(0,0,0,0.05);border:1px solid rgba(0,0,0,0.05)}.quick-link-btn:hover{transform:translateY(-2px);box-shadow:0 4px 6px rgba(0,0,0,0.1);color:var(--deep-twilight)}.quick-link-btn .link-icon{font-size:1.2rem}:root{--deep-twilight:#03045e;--bright-teal-blue:#0077b6;--turquoise-surf:#00b4d8;--frosted-blue:#90e0ef;--light-cyan:#caf0f8;--primary:var(--bright-teal-blue);--accent:var(--turquoise-surf);--bg:#fdfefe;--bg-card:#ffffff;--bg-alt:var(--light-cyan);--text:var(--deep-twilight);--text-muted:#1e293b;--border:var(--frosted-blue);--success:#059669;--error:#dc2626;--teal-main:var(--bright-teal-blue);--teal-dark:var(--deep-twilight);--teal-light:var(--light-cyan);--slate-text:var(--deep-twilight);--slate-muted:#334155;--glass-bg:rgba(255,255,255,0.7);--glass-border:rgba(255,255,255,0.3);--glass-shadow:0 8px 32px 0 rgba(3,4,94,0.05)}*,*::before,*::after{box-sizing:border-box}body{margin:0;font-family:'Inter',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;font-size:1rem}.container{width:100%;max-width:1400px;margin:0 auto;padding:0 1.5rem}h1{font-size:2rem}section h1,article h1,aside h1,nav h1{font-size:2rem}.ad-container-wrapper{margin:2rem 0;width:100%}.ad-label{display:none;font-size:0.65rem;color:#94a3b8;text-transform:uppercase;letter-spacing:1px;margin-bottom:0.5rem;text-align:center;font-weight:600}.ad-unit{background:rgba(0,0,0,0.02);border-radius:8px;display:block;width:100%;overflow:hidden;text-align:center}.ad-full-width-grid{grid-column:1 / -1;width:100%}.social-share-container{padding:1rem 0;display:flex;justify-content:center;background:transparent;width:100%;animation:shareBarFadeIn 0.6s ease-out 0.2s both}@keyframes shareBarFadeIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.social-share-flex{background:rgba(255,255,255,0.75);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid rgba(144,224,239,0.2);padding:0.5rem 1.75rem;border-radius:100px;display:flex;align-items:center;gap:1.25rem;box-shadow:0 4px 20px rgba(3,4,94,0.04),0 0 0 1px rgba(255,255,255,0.4) inset;transition:all 0.3s cubic-bezier(0.4,0,0.2,1)}.social-share-flex:hover{transform:translateY(-1px);box-shadow:0 8px 28px rgba(3,4,94,0.07);border-color:rgba(0,180,216,0.3)}.share-label{font-size:0.75rem;font-weight:700;color:var(--deep-twilight);text-transform:uppercase;letter-spacing:1px;opacity:0.7;white-space:nowrap}.share-buttons{display:flex;gap:0.5rem;border-left:1px solid rgba(144,224,239,0.3);padding-left:1.25rem}.share-btn{width:42px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;color:white;text-decoration:none;transition:all 0.3s cubic-bezier(0.34,1.56,0.64,1);border:none;cursor:pointer;position:relative;overflow:hidden}.share-btn::after{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(rgba(255,255,255,0.15),transparent);opacity:0;transition:opacity 0.2s}.share-btn:hover{transform:scale(1.12) translateY(-2px);box-shadow:0 6px 16px rgba(0,0,0,0.15);z-index:2}.share-btn:hover::after{opacity:1}.share-btn.fb{background:linear-gradient(135deg,#1877f2,#0d47a1)}.share-btn.tw{background:linear-gradient(135deg,#1a1a1a,#333333)}.share-btn.in{background:linear-gradient(135deg,#0077b5,#004182)}.share-btn.wa{background:linear-gradient(135deg,#25d366,#128c7e)}.share-btn.copy{background:linear-gradient(135deg,var(--turquoise-surf),var(--bright-teal-blue))}.share-btn svg{width:16px;height:16px}@media (max-width:640px){.social-share-flex{flex-direction:column;padding:1rem 1.5rem;border-radius:20px;gap:0.75rem}.share-buttons{border-left:none;padding-left:0;border-top:1px solid rgba(144,224,239,0.3);padding-top:0.75rem}}.sidebar-ad{position:sticky !important;top:2rem;z-index:10}@media (max-width:768px){.container{padding:0 1rem}}.section-padding{padding:3.5rem 0}@media (max-width:768px){.section-padding{padding:2rem 0}}.text-center{text-align:center}.bg-alt{background-color:var(--bg-alt)}.mb-1{margin-bottom:1rem}.mb-2{margin-bottom:2rem}.mb-3{margin-bottom:3rem}.mb-4{margin-bottom:4rem}.mb-5{margin-bottom:5rem}.mt-1{margin-top:1rem}.mt-2{margin-top:2rem}.mt-4{margin-top:4rem}.site-header{background:rgba(255,255,255,0.85);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);padding:0.6rem 0;box-shadow:0 1px 0 rgba(0,119,182,0.08),0 4px 24px rgba(3,4,94,0.04);position:sticky;top:0;z-index:1000;border-bottom:1px solid rgba(144,224,239,0.25);transition:all 0.35s cubic-bezier(0.4,0,0.2,1);overflow:visible}.site-header.scrolled{background:rgba(255,255,255,0.95);box-shadow:0 1px 0 rgba(0,119,182,0.1),0 8px 30px rgba(3,4,94,0.08);padding:0.4rem 0}.header-inner{display:flex;justify-content:space-between;align-items:center}.logo{display:flex;align-items:center;gap:0.6rem;font-weight:800;font-size:1.35rem;text-decoration:none;color:var(--teal-dark);letter-spacing:-0.5px;z-index:1001;transition:transform 0.2s ease}.logo:hover{transform:scale(1.02)}.logo-icon{width:30px;height:30px;color:var(--teal-main);flex-shrink:0;filter:drop-shadow(0 2px 4px rgba(0,119,182,0.25))}.logo span{color:var(--teal-main)}.main-nav{display:flex;gap:0.25rem;align-items:center}.nav-link{text-decoration:none;color:var(--slate-text);font-weight:600;font-size:0.9rem;padding:0.5rem 0.85rem;border-radius:8px;transition:all 0.25s cubic-bezier(0.4,0,0.2,1);position:relative}.nav-link::after{content:'';position:absolute;bottom:2px;left:50%;width:0;height:2px;background:linear-gradient(90deg,var(--bright-teal-blue),var(--turquoise-surf));border-radius:2px;transition:all 0.3s cubic-bezier(0.4,0,0.2,1);transform:translateX(-50%)}.nav-link:hover{color:var(--teal-main);background:rgba(0,119,182,0.04)}.nav-link:hover::after{width:60%}.nav-link.active{color:var(--bright-teal-blue);background:rgba(0,119,182,0.06)}.nav-link.active::after{width:60%}.menu-toggle{display:none;flex-direction:column;justify-content:center;align-items:center;gap:5px;width:44px;height:44px;background:transparent;border:none;cursor:pointer;padding:0;z-index:1001}.menu-toggle span{width:100%;height:2.5px;background:linear-gradient(90deg,var(--deep-twilight),var(--bright-teal-blue));border-radius:4px;transition:all 0.35s cubic-bezier(0.68,-0.55,0.27,1.55);transform-origin:center}body.nav-open .menu-toggle span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}body.nav-open .menu-toggle span:nth-child(2){opacity:0;transform:scaleX(0)}body.nav-open .menu-toggle span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}@media (max-width:768px){.menu-toggle{display:flex}.main-nav{position:fixed;top:0;right:-100%;width:100%;height:100vh;background:linear-gradient(160deg,#ffffff 0%,#f0f9ff 100%);flex-direction:column;justify-content:center;align-items:center;gap:0.5rem;transition:right 0.45s cubic-bezier(0.77,0,0.175,1);z-index:1000;padding:2rem}body.nav-open .main-nav{right:0}.main-nav .nav-link{font-size:1.4rem;font-weight:700;padding:0.75rem 1.5rem;border-radius:12px;width:80%;text-align:center}.main-nav .nav-link:hover{background:rgba(0,119,182,0.08)}.main-nav .nav-link::after{display:none}}.has-megamenu{}.megamenu-trigger{display:flex;align-items:center;gap:4px;cursor:pointer}.nav-caret{display:inline-block;font-size:0.65em;line-height:1;transition:transform 0.2s ease;margin-top:1px;color:var(--teal-main)}.has-megamenu.open .nav-caret,.has-megamenu:hover .nav-caret{transform:rotate(180deg)}.megamenu{display:none;position:fixed;top:var(--megamenu-top,60px);left:0;right:0;background:#fff;border-top:2px solid var(--teal-main);box-shadow:0 12px 48px rgba(3,4,94,0.14);z-index:1100;padding:2rem 0 2.5rem}@media (min-width:901px){.has-megamenu:hover .megamenu{display:block;animation:megamenu-in 0.18s ease}}.has-megamenu.open .megamenu{display:block;animation:megamenu-in 0.18s ease}@keyframes megamenu-in{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}.megamenu-inner{display:grid;grid-template-columns:260px 1fr;gap:3rem;align-items:start}.megamenu-heading{font-size:0.68rem;font-weight:800;text-transform:uppercase;letter-spacing:0.09em;color:var(--teal-main);margin:0 0 0.85rem;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--frosted-blue);padding-bottom:0.5rem}.megamenu-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}.megamenu-list li a{display:flex;align-items:center;gap:0.5rem;padding:0.5rem 0.75rem;border-radius:8px;text-decoration:none;color:var(--deep-twilight);font-size:0.88rem;font-weight:500;transition:background 0.14s,color 0.14s}.megamenu-list li a:hover{background:var(--light-cyan);color:var(--teal-main)}.megamenu-extras{margin-top:1rem;padding-top:1rem;border-top:1px solid rgba(144,224,239,0.4);display:flex;flex-direction:column;gap:2px}.megamenu-extra-link{display:flex;align-items:center;gap:0.5rem;padding:0.4rem 0.75rem;border-radius:8px;text-decoration:none;color:var(--deep-twilight);font-size:0.83rem;font-weight:500;transition:background 0.14s}.megamenu-extra-link:hover{background:var(--light-cyan);color:var(--teal-main)}.megamenu-viewall{font-size:0.75rem;font-weight:700;color:var(--teal-main);text-decoration:none;white-space:nowrap}.megamenu-viewall:hover{text-decoration:underline}.megamenu-exams-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(82px,1fr));gap:0.4rem}.megamenu-exam-pill{display:flex;align-items:center;justify-content:center;padding:0.38rem 0.4rem;border:1.5px solid var(--frosted-blue);border-radius:7px;text-decoration:none;color:var(--deep-twilight);font-size:0.78rem;font-weight:600;transition:background 0.14s,border-color 0.14s,color 0.14s;text-align:center}.megamenu-exam-pill:hover{background:var(--teal-main);border-color:var(--teal-main);color:#fff}.megamenu-backdrop{display:none;position:fixed;inset:0;z-index:1099;background:rgba(3,4,94,0.08);backdrop-filter:none}.has-megamenu.open~.megamenu-backdrop{display:block}@media (max-width:900px){.megamenu,.has-megamenu.open .megamenu,.has-megamenu:hover .megamenu{display:none !important}.nav-caret{display:none !important}.has-megamenu{display:contents}.megamenu-trigger{display:block}}main.container{padding:0;animation:fadeInContent 0.4s ease-out}@keyframes fadeInContent{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.site-footer{background:linear-gradient(160deg,#03045e 0%,#023e8a 60%,#0077b6 100%);color:rgba(255,255,255,0.9);padding:4rem 0 0;margin-top:3rem;position:relative;overflow:hidden}.site-footer::before{content:'';position:absolute;top:-50%;right:-20%;width:60%;height:200%;background:radial-gradient(circle,rgba(0,180,216,0.08) 0%,transparent 60%);pointer-events:none}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:3rem;position:relative;z-index:1}.footer-col h3{font-size:0.85rem;font-weight:700;text-transform:uppercase;letter-spacing:1.5px;color:var(--turquoise-surf);margin:0 0 1.25rem;position:relative;padding-bottom:0.75rem}.footer-col h3::after{content:'';position:absolute;bottom:0;left:0;width:30px;height:2px;background:linear-gradient(90deg,var(--turquoise-surf),transparent);border-radius:2px}.brand-col .logo{color:white;font-size:1.3rem;margin-bottom:1rem}.brand-col .logo span{color:var(--turquoise-surf)}.brand-col .logo-icon{color:var(--turquoise-surf)}.brand-col p{font-size:0.88rem;color:rgba(255,255,255,0.65);line-height:1.7;margin:0}.footer-links{list-style:none;padding:0;margin:0}.footer-links li{margin-bottom:0.6rem}.footer-links a{color:rgba(255,255,255,0.7);text-decoration:none;font-size:0.9rem;font-weight:500;transition:all 0.25s ease;position:relative;padding-bottom:2px}.footer-links a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:1px;background:var(--turquoise-surf);transition:width 0.3s ease}.footer-links a:hover{color:white}.footer-links a:hover::after{width:100%}.disclaimer{font-size:0.78rem;color:rgba(255,255,255,0.5);line-height:1.6;margin:0}.footer-bottom{margin-top:3rem;padding:1.25rem 0;border-top:1px solid rgba(144,224,239,0.15);text-align:center;position:relative;z-index:1}.copyright{font-size:0.82rem;color:rgba(255,255,255,0.45);margin:0;font-weight:500}@media (max-width:768px){.footer-grid{grid-template-columns:1fr;gap:2rem;text-align:center}.footer-col h3::after{left:50%;transform:translateX(-50%)}.site-footer{padding:3rem 0 0}}.card{background:var(--bg-card);padding:2rem;border-radius:12px;box-shadow:0 4px 15px rgba(52,78,65,0.08);border:1px solid var(--border);margin-bottom:2rem}.hero-section{background:radial-gradient(circle at 50% 0%,rgba(3,4,94,0.4) 0%,transparent 70%),radial-gradient(circle at 100% 100%,rgba(0,180,216,0.2) 0%,transparent 50%),linear-gradient(135deg,var(--deep-twilight) 0%,#023e8a 50%,var(--bright-teal-blue) 100%);padding:8rem 0 10rem;border-radius:0 0 100px 100px;margin-bottom:0;text-align:center;color:#fff;position:relative;overflow:hidden;box-shadow:0 20px 40px rgba(0,0,0,0.2)}@keyframes heroGradientShift{0%{background-position:0% 50%}50%{background-position:100% 50%}100%{background-position:0% 50%}}.hero-section::before{content:'';position:absolute;top:-30%;right:-15%;width:60%;height:120%;background:radial-gradient(circle,rgba(144,224,239,0.15) 0%,transparent 60%);z-index:1;animation:heroGlow 8s ease-in-out infinite alternate}.hero-section::after{content:'';position:absolute;bottom:-20%;left:-10%;width:50%;height:100%;background:radial-gradient(circle,rgba(0,180,216,0.1) 0%,transparent 50%);z-index:1}@keyframes heroGlow{0%{opacity:0.5;transform:scale(1)}100%{opacity:1;transform:scale(1.1)}}.hero-content{position:relative;z-index:2;max-width:900px;margin:0 auto}.hero-section h1{font-size:4rem;line-height:1.1;margin:0 0 1.5rem;color:#fff;font-weight:800;letter-spacing:-2px}.hero-section p{font-size:1.4rem;color:#f1f5f9;max-width:700px;margin:0 auto 3rem;line-height:1.6}.hero-badge{background:rgba(144,224,239,0.15);color:var(--frosted-blue);padding:0.5rem 1.2rem;border-radius:100px;font-size:0.9rem;font-weight:700;text-transform:uppercase;letter-spacing:1px;margin-bottom:2rem;display:inline-block;border:1px solid rgba(144,224,239,0.2)}.stats-container{margin-top:-5rem;position:relative;z-index:10;padding:0 2rem}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:rgba(255,255,255,0.85);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);padding:0;border-radius:28px;box-shadow:0 25px 50px -12px rgba(3,4,94,0.15),0 0 0 1px rgba(255,255,255,0.1) inset;max-width:1100px;margin:0 auto;border:1px solid rgba(144,224,239,0.3);overflow:hidden}.stat-item{text-align:center;padding:3rem 2rem;position:relative;transition:all 0.3s ease;border-right:1px solid var(--bg-alt)}.stat-item:last-child{border-right:none}.stat-item:not(:last-child)::after{content:'';position:absolute;right:0;top:20%;height:60%;width:1px;background:linear-gradient(180deg,transparent,var(--frosted-blue),transparent)}.stat-item:hover{background:rgba(202,240,248,0.3)}.stat-number{display:block;font-size:3.5rem;font-weight:800;background:linear-gradient(135deg,var(--deep-twilight),var(--bright-teal-blue));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:0.75rem;line-height:1}.stat-label{font-size:0.95rem;color:var(--text-muted);font-weight:600;text-transform:uppercase;letter-spacing:1px}@media (max-width:768px){.stats-grid{grid-template-columns:repeat(2,1fr)}}.quizzes-section h2,.topics-section h2,.info-header h2{font-size:3rem;margin-bottom:1rem;color:var(--teal-dark);font-weight:800;letter-spacing:-1.5px}.section-desc{font-size:1.25rem;color:#334155;max-width:800px;margin:0 auto 4rem;line-height:1.6}.info-header{text-align:center;margin-bottom:5rem}.section-dark{background:var(--teal-dark);color:#fff}.section-dark .info-header h2{color:#fff}.section-dark .section-desc{color:#94a3b8}.topic-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem;margin-top:2rem}.topic-card{background:#fff;padding:2.25rem;border-radius:20px;text-decoration:none;color:inherit;border:1px solid var(--border);transition:all 0.3s cubic-bezier(0.4,0,0.2,1);display:flex;flex-direction:column;box-shadow:0 4px 6px -1px rgba(0,0,0,0.05);position:relative;overflow:hidden;height:100%}.topic-card:hover{transform:translateY(-8px);box-shadow:0 25px 30px -5px rgba(3,4,94,0.1);border-color:var(--turquoise-surf)}.section-dark .topic-card{background:rgba(255,255,255,0.03);border-color:rgba(255,255,255,0.1);color:#e2e8f0}.section-dark .topic-card:hover{background:rgba(255,255,255,0.08);border-color:var(--accent)}.topic-card h3,.topic-card h4{margin:0 0 1rem;color:var(--teal-dark);font-size:1.35rem;font-weight:700;line-height:1.3}.section-dark .topic-card h3,.section-dark .topic-card h4{color:#fff}.topic-card p{margin:0 0 1.5rem;color:var(--slate-muted);font-size:1rem;flex-grow:1;line-height:1.6}.section-dark .topic-card p{color:#94a3b8}.topic-card small{display:inline-flex;align-items:center;color:var(--teal-main);font-weight:700;font-size:0.85rem;text-transform:uppercase;letter-spacing:0.5px}.section-dark .topic-card small{color:var(--accent)}.category-heading{margin:3rem 0 1.5rem;font-size:1.75rem;font-weight:700;color:var(--teal-dark)}.section-dark .category-heading{color:#fff;border-bottom:2px solid rgba(255,255,255,0.1);padding-bottom:0.75rem}.category-block{margin-bottom:4rem}.category-block h3{font-size:1.5rem;color:var(--turquoise-surf);margin-bottom:2rem;padding-bottom:1rem;border-bottom:1px solid rgba(255,255,255,0.1);display:flex;align-items:center;gap:1rem}.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:3rem}.feature-item{text-align:center;padding:2rem;border-radius:20px;transition:all 0.4s cubic-bezier(0.4,0,0.2,1)}.feature-item:hover{background:rgba(202,240,248,0.3);transform:translateY(-8px)}.feature-icon{width:72px;height:72px;background:linear-gradient(135deg,var(--light-cyan),var(--frosted-blue));color:var(--deep-twilight);display:flex;align-items:center;justify-content:center;border-radius:20px;margin:0 auto 1.5rem;font-size:2rem;box-shadow:0 10px 30px rgba(0,119,182,0.15);transition:all 0.3s ease}.feature-item:hover .feature-icon{transform:scale(1.1) rotate(5deg);box-shadow:0 15px 40px rgba(0,119,182,0.25)}.feature-item h3{font-size:1.4rem;font-weight:700;margin-bottom:1rem;color:var(--teal-dark)}.feature-item p{color:var(--text-muted);line-height:1.7}.process-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:3rem;position:relative;max-width:1100px;margin:0 auto}.process-grid::before{content:'';position:absolute;top:38px;left:18%;right:18%;height:4px;background:linear-gradient(90deg,var(--frosted-blue),var(--turquoise-surf),var(--frosted-blue));background-size:200% 100%;animation:timelineFlow 3s ease-in-out infinite;border-radius:2px;z-index:0}@keyframes timelineFlow{0%{background-position:0% 50%}50%{background-position:100% 50%}100%{background-position:0% 50%}}.step-card{background:#fff;padding:3.5rem 2rem 2.5rem;border-radius:24px;border:1px solid var(--border);position:relative;text-align:center;z-index:1;box-shadow:0 10px 40px rgba(3,4,94,0.06);transition:all 0.4s cubic-bezier(0.4,0,0.2,1)}@media (max-width:640px){.step-card{padding:2rem 1.25rem 1.5rem}}.step-card:hover{transform:translateY(-10px);box-shadow:0 25px 50px rgba(3,4,94,0.12);border-color:var(--turquoise-surf)}.step-number{position:absolute;top:-28px;left:50%;transform:translateX(-50%);width:56px;height:56px;background:linear-gradient(135deg,var(--bright-teal-blue),var(--turquoise-surf));color:#fff;display:flex;align-items:center;justify-content:center;border-radius:50%;font-weight:800;font-size:1.3rem;border:4px solid #fff;box-shadow:0 8px 20px rgba(0,119,182,0.3)}.step-card h3{margin:2.5rem 0 1rem;font-size:1.35rem;color:var(--teal-dark);font-weight:700}.step-card p{color:var(--text-muted);line-height:1.6}.static-page-header{background:var(--deep-twilight);padding:8rem 0 6rem;text-align:center;color:white;position:relative;overflow:hidden}.cta-banner{background:linear-gradient(135deg,var(--deep-twilight) 0%,#023e8a 100%);padding:6rem 2rem;border-radius:32px;text-align:center;color:#fff;position:relative;overflow:hidden;margin-bottom:2rem}.cta-banner::before{content:'';position:absolute;top:-40%;right:-15%;width:50%;height:120%;background:radial-gradient(circle,rgba(0,180,216,0.2) 0%,transparent 60%);animation:ctaGlow 6s ease-in-out infinite alternate;pointer-events:none}.cta-banner::after{content:'';position:absolute;bottom:-30%;left:-10%;width:40%;height:100%;background:radial-gradient(circle,rgba(144,224,239,0.1) 0%,transparent 50%);pointer-events:none}@keyframes ctaGlow{0%{opacity:0.4;transform:scale(0.95)}100%{opacity:1;transform:scale(1.1)}}.cta-banner h2{font-size:2.8rem;font-weight:800;margin-bottom:1.5rem;position:relative;z-index:1}.cta-banner p{font-size:1.25rem;color:var(--frosted-blue);max-width:600px;margin:0 auto 2.5rem;position:relative;z-index:1}.cta-banner .btn{position:relative;z-index:1}.btn{display:inline-flex;align-items:center;justify-content:center;padding:1rem 2.5rem;border-radius:12px;text-decoration:none;font-weight:700;font-size:1.1rem;cursor:pointer;transition:all 0.3s cubic-bezier(0.4,0,0.2,1);border:none;gap:0.75rem}.btn-primary{background:var(--bright-teal-blue);color:#fff;box-shadow:0 10px 15px -3px rgba(0,119,182,0.3)}.btn-primary:hover{background:var(--deep-twilight);transform:translateY(-3px);box-shadow:0 20px 25px -5px rgba(0,119,182,0.4)}.btn-secondary{background:#ffffff;color:var(--teal-dark);border:2px solid var(--border)}.flashcard-nav-btn:hover{background:var(--primary);border-color:var(--primary);transform:scale(1.1)}.btn-secondary:hover{border-color:var(--teal-main);color:var(--teal-main);background:var(--teal-light);transform:translateY(-3px)}.btn-white{background:#ffffff;color:var(--teal-dark);box-shadow:0 4px 6px rgba(0,0,0,0.05)}.btn-white:hover{background:var(--teal-light);transform:translateY(-3px);box-shadow:0 10px 15px rgba(0,0,0,0.1)}.hero-actions{display:flex;gap:1.5rem;justify-content:center;margin-bottom:4rem}.quiz-header{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:2rem;padding-bottom:1.5rem;border-bottom:2px solid var(--frosted-blue)}.quiz-header h1{margin:0;font-size:1.8rem;color:var(--deep-twilight)}.progress-bar{color:var(--text-muted);font-size:0.95rem;font-weight:600}.score-tracker{display:flex;gap:1rem}.score-correct,.score-incorrect{padding:0.5rem 1.25rem;border-radius:10px;font-weight:700;font-size:0.95rem}.score-correct{background:rgba(16,185,129,0.15);color:var(--success)}.score-incorrect{background:rgba(239,68,68,0.15);color:var(--error)}.question-container{background:var(--bg-card);padding:1.5rem;border-radius:20px;border:1px solid var(--border);box-shadow:0 10px 40px rgba(3,4,94,0.06);transition:all 0.3s ease}.question-text{font-size:1.4rem;font-weight:600;margin-bottom:1rem;color:var(--text);line-height:1.5}.options{display:grid;gap:0.5rem}.option-btn{display:block;width:100%;text-align:left;padding:1.25rem 1.5rem;border:2px solid var(--border);background:var(--bg-card);border-radius:14px;cursor:pointer;font-size:1rem;transition:all 0.3s cubic-bezier(0.4,0,0.2,1);color:var(--text);position:relative;overflow:hidden}.option-btn::before{content:'';position:absolute;left:0;top:0;width:4px;height:100%;background:var(--turquoise-surf);transform:scaleY(0);transition:transform 0.3s ease}.option-btn:hover{border-color:var(--turquoise-surf);background:rgba(202,240,248,0.2);transform:translateX(8px)}.option-btn:hover::before{transform:scaleY(1)}.option-btn.correct{border-color:var(--success);background:linear-gradient(135deg,rgba(16,185,129,0.1),rgba(16,185,129,0.05));color:#047857;animation:correctPulse 0.5s ease}.option-btn.correct::before{background:var(--success);transform:scaleY(1)}@keyframes correctPulse{0%{transform:scale(1)}50%{transform:scale(1.02)}100%{transform:scale(1)}}.option-btn.incorrect,.option-btn.wrong{border-color:var(--error);background:linear-gradient(135deg,rgba(239,68,68,0.1),rgba(239,68,68,0.05));color:#b91c1c;animation:incorrectShake 0.4s ease}.option-btn.incorrect::before,.option-btn.wrong::before{background:var(--error);transform:scaleY(1)}@keyframes incorrectShake{0%,100%{transform:translateX(0)}25%{transform:translateX(-5px)}75%{transform:translateX(5px)}}.explanation{margin-top:2rem;padding:1.5rem;background:linear-gradient(135deg,var(--light-cyan),rgba(202,240,248,0.5));border-left:4px solid var(--bright-teal-blue);border-radius:0 12px 12px 0;display:none}.explanation.visible{display:block;animation:slideDownExplanation 0.4s ease-out}@keyframes slideDownExplanation{from{opacity:0;transform:translateY(-15px)}to{opacity:1;transform:translateY(0)}}.quiz-static-ad{margin:1.5rem 0}.quiz-ad-slot{margin:1.5rem 0;animation:fadeIn 0.3s ease}.ad-timer-bar{background:var(--light-cyan);border-radius:12px;padding:1.25rem 1.5rem;margin-bottom:1rem;text-align:center}.ad-timer-bar span{font-weight:600;color:var(--text-muted)}.ad-timer-bar #ad-countdown{display:inline-block;background:linear-gradient(135deg,var(--bright-teal-blue),var(--turquoise-surf));color:white;width:32px;height:32px;line-height:32px;border-radius:50%;font-weight:700;margin:0 0.35rem}.timer-progress{height:6px;background:var(--frosted-blue);border-radius:3px;margin-top:0.75rem;overflow:hidden}.timer-fill{height:100%;background:linear-gradient(90deg,var(--bright-teal-blue),var(--turquoise-surf));border-radius:3px;width:100%}.quiz-summary{text-align:center;padding:3rem;max-width:700px;margin:0 auto}.summary-header{margin-bottom:2.5rem}.summary-emoji{font-size:4.5rem;display:block;margin-bottom:1rem}.summary-header h2{font-size:2.2rem;margin:0 0 0.5rem;color:var(--text)}.grade{font-size:1.3rem;color:var(--bright-teal-blue);font-weight:700;margin:0}.summary-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem;margin-bottom:2.5rem}.summary-stats .stat-card{background:linear-gradient(135deg,var(--light-cyan),rgba(202,240,248,0.5));border-radius:16px;padding:2rem 1rem;border:1px solid var(--frosted-blue)}.summary-stats .stat-number{display:block;font-size:2.8rem;font-weight:800;line-height:1;margin-bottom:0.5rem}.summary-stats .stat-label{font-size:0.85rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:0.5px}.stat-correct .stat-number{color:var(--success)}.stat-incorrect .stat-number{color:var(--error)}.stat-percentage .stat-number{background:linear-gradient(135deg,var(--deep-twilight),var(--bright-teal-blue));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.summary-breakdown{text-align:left;margin-bottom:2rem;padding:1.5rem;background:var(--bg-alt);border-radius:16px;border:1px solid var(--border)}.summary-breakdown h3{margin:0 0 1rem;font-size:1rem;color:var(--text)}.results-list{list-style:none;padding:0;margin:0;max-height:200px;overflow-y:auto}.results-list li{display:flex;align-items:center;gap:0.75rem;padding:0.6rem 0;border-bottom:1px solid var(--border);font-size:0.9rem}.results-list li:last-child{border-bottom:none}.result-icon{width:26px;height:26px;display:flex;align-items:center;justify-content:center;border-radius:50%;font-size:0.75rem;font-weight:700}.result-correct .result-icon{background:var(--success);color:white}.result-incorrect .result-icon{background:var(--error);color:white}.result-text{flex:1;color:var(--text-muted)}.summary-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.topic-wrapper.section-padding{padding-top:1.5rem;padding-bottom:3rem}.topic-wrapper .container{max-width:1400px;padding-left:1rem;padding-right:1rem}.topic-page{position:relative;margin:0 auto}.topic-header{margin-bottom:2.5rem;padding-bottom:1.5rem;border-bottom:1px solid var(--border)}.topic-header-compact{background:radial-gradient(circle at top right,#134e4a,#0f172a);padding:3rem 2.5rem;border-radius:24px;color:#fff;margin-bottom:3rem;box-shadow:0 20px 25px -5px rgba(0,0,0,0.1),0 10px 10px -5px rgba(0,0,0,0.04);position:relative;overflow:hidden;border:1px solid rgba(255,255,255,0.05)}@media (max-width:640px){.topic-header-compact{padding:2rem 1.25rem;margin-bottom:2rem}.topic-header-compact .topic-title{font-size:2rem}}.topic-header-compact::before{content:'';position:absolute;top:-50px;right:-50px;width:200px;height:200px;background:rgba(45,212,191,0.1);filter:blur(60px);border-radius:50%}.topic-header-compact .topic-title{color:#fff;font-size:3rem;font-weight:800;margin-bottom:0.75rem;letter-spacing:-0.02em;text-shadow:0 4px 8px rgba(0,0,0,0.2);position:relative}.topic-header-compact .text-muted{color:#cbd5e1 !important;font-size:1.15rem;font-weight:400}.topic-header-compact a.text-teal{color:#5eead4 !important;text-decoration:none;border-bottom:1px solid rgba(94,234,212,0.3);transition:all 0.2s}.topic-header-compact a.text-teal:hover{border-bottom-color:#5eead4;text-shadow:0 0 10px rgba(94,234,212,0.4)}.topic-header-compact .breadcrumb{background:rgba(0,0,0,0.2);border-color:rgba(255,255,255,0.1);backdrop-filter:blur(12px)}.topic-header-compact .breadcrumb li{color:#94a3b8}.topic-header-compact .breadcrumb li::after{color:#64748b}.topic-header-compact .breadcrumb a{color:#e2e8f0}.topic-header-compact .breadcrumb a:hover{color:#fff;background:rgba(255,255,255,0.1)}.topic-header-compact .breadcrumb li.active{color:#fff}.topic-header h1{font-size:2.5rem;margin:0.5rem 0;color:var(--teal-dark);letter-spacing:-1px}.badge{display:inline-block;background:var(--light-cyan);color:var(--deep-twilight);padding:0.4rem 1rem;border-radius:20px;font-size:0.85rem;font-weight:600;text-transform:uppercase;letter-spacing:0.5px}.topic-page .content{background:#fff;padding:3rem;border-radius:16px;border:1px solid var(--border);box-shadow:0 4px 6px rgba(0,0,0,0.02)}.article-content{font-size:1.1rem;line-height:1.8;color:var(--text)}.article-content p{margin-bottom:1.5rem}.article-content h2{font-size:1.8rem;color:var(--teal-dark);margin:3rem 0 1.5rem;padding-left:1rem;border-left:5px solid var(--teal-main);line-height:1.3;font-weight:700}.article-content h3{font-size:1.4rem;color:var(--primary);margin:2.5rem 0 1rem;font-weight:600;display:flex;align-items:center;gap:0.5rem}.article-content h3::before{content:'•';color:var(--accent);font-size:1.5rem;line-height:0}.article-content ul,.article-content ol{margin-bottom:1.5rem;padding-left:1.5rem}.article-content li{margin-bottom:0.5rem}.article-content blockquote{background:var(--bg-alt);border-left:4px solid var(--accent);margin:2rem 0;padding:1.5rem 2rem;font-style:italic;color:var(--text-muted);border-radius:0 8px 8px 0}.article-content strong{color:var(--teal-dark);font-weight:700}.related-practice{margin-top:3rem;padding:2rem;background:linear-gradient(to right,var(--bg-alt),#fff);border-radius:12px;border:1px solid var(--border)}.related-practice h3{margin:0 0 0.5rem;color:var(--teal-dark)}.related-practice p{margin:0 0 1.5rem;color:var(--text-muted)}.site-footer{background:var(--deep-twilight);color:#ffffff;padding:6rem 0 3rem;border-top:1px solid rgba(255,255,255,0.05)}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.5fr;gap:4rem}.footer-col h3{color:#fff;font-size:1.1rem;font-weight:700;margin-bottom:1.5rem;letter-spacing:0.5px;text-transform:uppercase}.footer-col p{color:#e2e8f0;line-height:1.6;font-size:0.95rem}.brand-col .logo{color:#fff;display:flex;align-items:center;gap:0.5rem;margin-bottom:1.5rem}.site-footer .logo span{color:#2dd4bf}.site-footer .logo-icon{color:#2dd4bf}.footer-links{list-style:none;padding:0;margin:0}.footer-links li{margin-bottom:0.75rem}.footer-links a{color:#cbd5e1;text-decoration:none;transition:all 0.2s ease;font-size:0.95rem}.footer-links a:hover{color:var(--accent);transform:translateX(5px);display:inline-block}.disclaimer-col .disclaimer{font-size:0.9rem;color:#f1f5f9;margin-bottom:2rem}.footer-bottom{margin-top:4rem;padding-top:2rem;border-top:1px solid rgba(255,255,255,0.05);text-align:center}.copyright{font-size:0.9rem;color:#f1f5f9}@media (max-width:1024px){.footer-grid{grid-template-columns:repeat(2,1fr);gap:3rem}}@media (max-width:640px){.footer-grid{grid-template-columns:1fr;gap:2.5rem;text-align:center}.footer-links a:hover{transform:none}}.text-center{text-align:center}.error-page{display:flex;justify-content:center;align-items:center;min-height:60vh;padding:2rem}.error-card{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:4rem 2rem;text-align:center;max-width:600px;width:100%;box-shadow:0 20px 40px rgba(52,78,65,0.12);animation:fadeIn 0.6s ease-out}.error-code{font-size:7rem;font-weight:800;line-height:1;background:linear-gradient(135deg,var(--deep-twilight) 0%,var(--bright-teal-blue) 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:1rem}.error-card h1{margin-bottom:1rem;font-size:2rem;color:var(--text)}.error-card p{color:var(--text-muted);font-size:1.1rem;margin-bottom:2rem}.error-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.static-layout{display:grid;grid-template-columns:280px 1fr;gap:4rem;align-items:start}.toc-sidebar{position:sticky;top:6rem;background:var(--bg-card);padding:2rem;border-radius:20px;border:1px solid var(--border);box-shadow:0 4px 20px rgba(0,0,0,0.03)}.toc-sidebar h4{font-size:0.9rem;text-transform:uppercase;letter-spacing:1px;color:var(--teal-main);margin-bottom:1.5rem;font-weight:800}.toc-list{list-style:none;padding:0;margin:0}.toc-list li{margin-bottom:0.75rem}.toc-list a{text-decoration:none;color:var(--slate-muted);font-size:0.95rem;font-weight:500;transition:all 0.2s ease;display:block;line-height:1.4}.toc-list a:hover,.toc-list a.active{color:var(--teal-main);transform:translateX(5px)}.reading-content{max-width:850px;font-size:1.15rem;line-height:1.85;color:var(--slate-text)}.reading-content h2{font-size:2.25rem;margin:5rem 0 2rem;color:var(--teal-dark);letter-spacing:-0.04em;font-weight:800;line-height:1.1;padding:1.25rem 2rem;position:relative;background:linear-gradient(90deg,rgba(13,148,136,0.04) 0%,transparent 100%);border-radius:0 16px 16px 0;transition:all 0.4s cubic-bezier(0.175,0.885,0.32,1.275);scroll-margin-top:100px}.reading-content h2::before{content:'';position:absolute;left:0;top:15%;bottom:15%;width:6px;background:linear-gradient(180deg,var(--teal-main) 0%,var(--accent) 100%);border-radius:0 4px 4px 0;transition:all 0.3s ease}.reading-content h2:hover{transform:translateX(10px);background:linear-gradient(90deg,rgba(13,148,136,0.07) 0%,transparent 100%)}.reading-content h2:hover::before{top:5%;bottom:5%;width:8px;box-shadow:4px 0 15px rgba(45,212,191,0.3)}.reading-content h3{font-size:1.6rem;margin:3.5rem 0 1.25rem;color:var(--teal-main);font-weight:700;letter-spacing:-0.01em;display:flex;align-items:center;gap:0.75rem;scroll-margin-top:100px}.reading-content h3::before{content:'';width:10px;height:10px;background:var(--accent);clip-path:polygon(0 0,100% 50%,0 100%);display:inline-block}.info-matrix{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem;margin:3rem 0}.matrix-item{background:var(--bg-alt);padding:2rem;border-radius:16px;border-left:4px solid var(--accent)}.matrix-item h4{margin-bottom:0.75rem;color:var(--teal-dark)}@media (max-width:1024px){.static-layout{grid-template-columns:1fr}.toc-sidebar{display:none}}@keyframes fadeIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.hidden{display:none !important}@media (max-width:1200px){body{overflow-x:auto}}.breadcrumb-nav{margin-bottom:2rem;font-size:0.95rem;display:block;width:100%}.breadcrumb{list-style:none;padding:0.75rem 1.5rem;margin:0;display:inline-flex;flex-wrap:nowrap;align-items:center;background:rgba(255,255,255,0.7);backdrop-filter:blur(10px);border:1px solid rgba(0,0,0,0.05);border-radius:100px;box-shadow:0 4px 6px -1px rgba(0,0,0,0.02);overflow-x:auto;max-width:100%;scrollbar-width:none;-ms-overflow-style:none;white-space:nowrap}.breadcrumb::-webkit-scrollbar{display:none}.breadcrumb li{display:inline-flex;align-items:center;color:var(--text-muted);flex-shrink:0}.breadcrumb li:not(:last-child)::after{content:'›';margin:0rem;color:var(--text-muted);font-size:1.2rem;line-height:1;font-weight:300;opacity:0.5}.faq-section{margin-top:2rem;padding:1.5rem;background:linear-gradient(135deg,rgba(202,240,248,0.3) 0%,rgba(144,224,239,0.15) 100%);border-radius:16px;border:1px solid rgba(0,119,182,0.1);position:relative;overflow:hidden}.faq-section::before{content:'';position:absolute;top:-50%;right:-30%;width:400px;height:400px;background:radial-gradient(circle,rgba(0,180,216,0.08) 0%,transparent 70%);pointer-events:none}.faq-section>h2{font-size:1.75rem;margin-bottom:2rem;color:var(--deep-twilight);display:flex;align-items:center;gap:0.75rem;position:relative}.faq-section>h2::before{content:'💡';font-size:1.5rem;display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;background:linear-gradient(135deg,var(--deep-twilight),var(--bright-teal-blue));border-radius:14px;box-shadow:0 4px 15px rgba(0,119,182,0.3)}.faq-controls{display:flex;justify-content:flex-end;margin-bottom:1.5rem}.faq-expand-all{background:rgba(255,255,255,0.6);border:1px solid rgba(0,119,182,0.2);color:var(--deep-twilight);padding:0.6rem 1.25rem;border-radius:50px;font-size:0.9rem;font-weight:700;cursor:pointer;transition:all 0.3s cubic-bezier(0.4,0,0.2,1);backdrop-filter:blur(8px);display:inline-flex;align-items:center;gap:0.5rem;font-family:inherit;box-shadow:0 2px 5px rgba(0,0,0,0.05)}.faq-expand-all:hover{background:var(--bright-teal-blue);color:white;border-color:var(--bright-teal-blue);box-shadow:0 8px 20px rgba(0,119,182,0.25);transform:translateY(-2px)}.faq-expand-all:active{transform:translateY(0)}.faq-container{display:flex;flex-direction:column;gap:0.6rem}.faq-item{background:rgba(255,255,255,0.9);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid rgba(0,119,182,0.12);border-radius:16px;overflow:hidden;transition:all 0.4s cubic-bezier(0.4,0,0.2,1);box-shadow:0 4px 20px rgba(3,4,94,0.04);position:relative}.faq-item::before{content:'';position:absolute;left:0;top:0;bottom:0;width:4px;background:linear-gradient(180deg,var(--turquoise-surf),var(--bright-teal-blue));opacity:0;transition:opacity 0.3s ease}.faq-item:hover{border-color:rgba(0,180,216,0.3);box-shadow:0 8px 30px rgba(0,119,182,0.12);transform:translateY(-2px)}.faq-item:hover::before{opacity:0.5}.faq-item.active{border-color:var(--bright-teal-blue);box-shadow:0 12px 40px rgba(0,119,182,0.18);background:rgba(255,255,255,0.95)}.faq-item.active::before{opacity:1}.faq-question{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.25rem;cursor:pointer;background:transparent;border:none;width:100%;text-align:left;font-family:inherit;gap:0.75rem;transition:all 0.3s ease}.faq-question:hover{background:linear-gradient(90deg,rgba(202,240,248,0.4) 0%,transparent 100%)}.faq-question h3{margin:0;font-size:1.1rem;font-weight:600;color:var(--deep-twilight);line-height:1.5;flex:1;transition:color 0.3s ease}.faq-item:hover .faq-question h3{color:var(--bright-teal-blue)}.faq-item.active .faq-question h3{color:var(--deep-twilight)}.faq-icon{width:32px;height:32px;min-width:32px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--turquoise-surf) 0%,var(--bright-teal-blue) 100%);border-radius:10px;transition:all 0.4s cubic-bezier(0.4,0,0.2,1);box-shadow:0 4px 12px rgba(0,180,216,0.25)}.faq-icon::before{content:'';width:10px;height:10px;border-right:2.5px solid white;border-bottom:2.5px solid white;transform:rotate(45deg) translateY(-2px);transition:transform 0.4s cubic-bezier(0.4,0,0.2,1)}.faq-item.active .faq-icon{background:linear-gradient(135deg,var(--deep-twilight) 0%,var(--bright-teal-blue) 100%);transform:rotate(180deg);box-shadow:0 4px 15px rgba(3,4,94,0.3)}.faq-answer{max-height:0;overflow:hidden;transition:max-height 0.5s cubic-bezier(0.4,0,0.2,1)}.faq-answer-inner{padding:0 1.75rem 1.75rem 1.75rem;background:linear-gradient(180deg,rgba(202,240,248,0.2) 0%,transparent 100%);margin-top:0;border-top:1px solid rgba(0,119,182,0.08)}.faq-item.active .faq-answer{max-height:600px}.faq-item.active .faq-answer-inner{padding-top:1.5rem}.faq-answer p{margin:0;color:var(--text-muted);line-height:1.8;font-size:1rem}.faq-answer p strong{color:var(--bright-teal-blue);font-weight:600}.faq-number{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;min-width:32px;background:linear-gradient(135deg,var(--light-cyan) 0%,var(--frosted-blue) 100%);color:var(--deep-twilight);border-radius:10px;font-weight:700;font-size:0.9rem;margin-right:1rem;box-shadow:0 2px 8px rgba(0,119,182,0.15);border:1px solid rgba(0,119,182,0.1)}.faq-section[itemscope]{display:block}@media (max-width:768px){.faq-section{padding:1.5rem;margin-top:2rem;border-radius:16px}.faq-section>h2{font-size:1.4rem;margin-bottom:1.5rem}.faq-section>h2::before{width:40px;height:40px;font-size:1.25rem}.faq-question{padding:1.25rem 1.25rem}.faq-question h3{font-size:1rem}.faq-icon{width:28px;height:28px;min-width:28px}.faq-answer-inner{padding:0 1.25rem 1.25rem}.faq-number{width:28px;height:28px;min-width:28px;font-size:0.85rem;margin-right:0.75rem}}.static-page-header .subtitle{opacity:0.8;max-width:600px;margin:auto}.deck-filters{display:flex;justify-content:center;gap:0.75rem;margin-bottom:4rem;flex-wrap:wrap}.filter-btn{padding:0.7rem 1.5rem;border-radius:50px;border:1px solid rgba(255,255,255,0.1)}.zen-study-container{background:radial-gradient(circle at top right,rgba(0,180,216,0.1) 0%,transparent 40%),radial-gradient(circle at bottom left,rgba(3,4,94,0.08) 0%,transparent 40%);min-height:100vh;padding-bottom:8rem}.glass-card{background:rgba(255,255,255,0.03);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,0.08);border-radius:24px}.deck-filters{display:flex;justify-content:center;gap:0.75rem;flex-wrap:wrap;margin-bottom:4rem}.filter-btn{border:1px solid rgba(255,255,255,0.1);background:rgba(255,255,255,0.05);color:var(--slate-muted);font-weight:600;font-size:0.85rem;padding:0.6rem 1.25rem;border-radius:50px;cursor:pointer;transition:all 0.3s cubic-bezier(0.4,0,0.2,1)}.filter-btn:hover{background:rgba(255,255,255,0.1);color:white;transform:translateY(-2px)}.filter-btn.active{background:var(--teal-main);color:white;border-color:var(--teal-main);box-shadow:0 10px 20px rgba(13,148,136,0.2)}.flashcards-container{perspective:2000px;max-width:700px;margin:0 auto}.flashcard{position:relative;width:100%;height:500px;text-align:center;transition:transform 0.7s cubic-bezier(0.34,1.56,0.64,1);transform-style:preserve-3d;cursor:pointer}.flashcard.is-flipped{transform:rotateY(180deg)}.flashcard-face{position:absolute;width:100%;height:100%;backface-visibility:hidden;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:4rem;border-radius:40px;box-shadow:0 40px 100px rgba(0,0,0,0.5);border:1px solid rgba(255,255,255,0.1)}.flashcard-front{background:linear-gradient(135deg,#0f172a 0%,#1e293b 100%);color:white}.flashcard-front::after{content:'';position:absolute;inset:0;background:radial-gradient(circle at 20% 20%,rgba(20,184,166,0.15),transparent 50%);pointer-events:none}.flashcard-back{background:white;color:var(--slate-900);transform:rotateY(180deg);border:1px solid var(--border)}.flashcard-category{text-transform:uppercase;letter-spacing:4px;font-size:0.7rem;font-weight:900;color:var(--frosted-blue);margin-bottom:2.5rem;background:rgba(144,224,239,0.1);padding:0.5rem 1.25rem;border-radius:50px}.flashcard-back .flashcard-category{background:rgba(0,0,0,0.05);color:var(--slate-muted)}#card-name{font-size:4rem;font-weight:900;margin:0;line-height:1;letter-spacing:-3px;-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.flashcard-back .definition{font-size:1.1rem;line-height:1.6;color:var(--slate-text);text-align:left;max-height:250px;overflow-y:auto;padding-right:1rem}.flashcard-back .definition::-webkit-scrollbar{width:4px}.flashcard-back .definition::-webkit-scrollbar-thumb{background:rgba(0,0,0,0.1);border-radius:2px}.confidence-controls{display:flex;justify-content:center;gap:1.5rem;margin-top:5rem}.conf-btn{padding:1rem 1.5rem;border-radius:16px;border:1px solid rgba(255,255,255,0.1);background:rgba(255,255,255,0.05);color:white;display:flex;flex-direction:column;align-items:center;gap:0.4rem;cursor:pointer;transition:all 0.3s ease;min-width:120px}.conf-btn i{font-size:1.5rem}.conf-btn span{font-size:0.75rem;font-weight:700;text-transform:uppercase;letter-spacing:1px}.conf-btn:hover{background:rgba(255,255,255,0.1);transform:translateY(-5px)}.conf-btn.conf-skip:hover{color:var(--frosted-blue);border-color:var(--frosted-blue)}.conf-btn.conf-review:hover{color:#ffd60a;border-color:#ffd60a}.conf-btn.conf-got-it:hover{color:var(--turquoise-surf);border-color:var(--turquoise-surf)}.flashcard-controls{display:flex;align-items:center;justify-content:center;gap:3rem;margin-top:3rem}.flashcard-nav-btn{background:rgba(255,255,255,0.1);border:1px solid rgba(255,255,255,0.1);color:white;width:60px;height:60px;border-radius:50%;font-size:1.25rem;cursor:pointer;transition:all 0.3s cubic-bezier(0.4,0,0.2,1);display:flex;align-items:center;justify-content:center}.flashcard-nav-btn:hover{background:white;color:var(--slate-900)}.flashcard-progress{font-size:1rem;font-weight:600;color:var(--slate-muted);font-variant-numeric:tabular-nums}.concept-directory{margin-top:8rem;border-top:1px solid rgba(255,255,255,0.05);padding-top:6rem}.directory-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:3rem;flex-wrap:wrap;gap:2rem}.directory-header h2{font-size:2.5rem;margin:0}.directory-search input{background:rgba(255,255,255,0.03);border:1px solid rgba(255,255,255,0.08);color:white;padding:1.1rem 2rem;border-radius:40px;min-width:350px;font-size:1rem;font-family:inherit;transition:all 0.3s ease}.directory-search input:focus{outline:none;border-color:var(--primary);background:rgba(255,255,255,0.06);box-shadow:0 0 30px rgba(0,180,216,0.15)}.directory-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1.25rem;max-height:600px;overflow-y:auto;padding:1rem;padding-right:1.5rem;background:rgba(255,255,255,0.01);border-radius:24px;border:1px solid rgba(255,255,255,0.03)}.directory-grid::-webkit-scrollbar{width:6px}.directory-grid::-webkit-scrollbar-track{background:transparent}.directory-grid::-webkit-scrollbar-thumb{background:rgba(255,255,255,0.05);border-radius:10px}.directory-item{background:rgba(15,23,42,0.2);border:1px solid rgba(255,255,255,0.06);padding:1.25rem;border-radius:20px;font-size:0.95rem;font-weight:600;cursor:pointer;transition:all 0.3s cubic-bezier(0.4,0,0.2,1);color:#e2e8f0;display:flex;align-items:center;gap:0.75rem}.dir-indicator{width:8px;height:8px;border-radius:50%;background:#475569}.directory-item:hover{background:rgba(0,180,216,0.1);border-color:rgba(0,180,216,0.3);transform:translateY(-3px)}.directory-item.active{background:var(--teal-main);color:white;border-color:var(--teal-main)}.directory-item.active .dir-indicator{background:white}.cat-A{color:#00b4d8}.cat-B{color:#0077b6}.cat-C{color:#48cae4}.cat-D{color:#023e8a}.cat-E{color:#ade8f4}.cat-F{color:#90e0ef}.cat-G{color:#0096c7}@media (max-width:991px){.directory-search input{min-width:100%}}@media (max-width:768px){.flashcard{height:400px}.flashcard-face{padding:2rem}#card-name{font-size:2.5rem}.flashcard-back .definition{font-size:1.1rem}.flashcard-controls{gap:1.5rem}.flashcard-nav-btn{width:50px;height:50px}}.topic-layout-grid{display:grid;grid-template-columns:1fr 300px;gap:3rem;align-items:start;margin-top:2rem}.topic-main{min-width:0}.key-takeaway{background:#f0fdfa;border:1px solid #ccfbf1;border-radius:12px;padding:1.5rem;display:flex;gap:1.25rem;margin-bottom:2.5rem;align-items:flex-start}.key-takeaway .icon{font-size:1.75rem}.key-takeaway .content{flex:1}.key-takeaway p{margin:0;color:#134e4a;font-size:1rem}.topic-sidebar{display:flex;flex-direction:column;gap:0.5rem}.sidebar-sticky{position:sticky;top:6rem}.sidebar-widget{padding:1.5rem}.sidebar-widget h4{font-size:1rem;font-weight:700;margin-bottom:1rem;color:var(--teal-dark);border-bottom:2px solid var(--bg-alt);padding-bottom:0.5rem;text-transform:uppercase;letter-spacing:0.5px}.related-list-sidebar{list-style:none;padding:0;margin:0}.related-list-sidebar li{margin-bottom:0.75rem;padding-bottom:0.75rem;border-bottom:1px solid var(--bg-alt)}.related-list-sidebar li:last-child{border-bottom:none}.related-list-sidebar a{color:var(--slate-muted);text-decoration:none;font-size:0.95rem;transition:all 0.2s}.related-list-sidebar a:hover{color:var(--teal-main);padding-left:4px}.static-layout{display:grid;grid-template-columns:280px 1fr;gap:4rem;align-items:start}.toc-sidebar{position:sticky;top:6rem;background:white;padding:1.5rem;border-radius:12px;border:1px solid var(--border)}.toc-list{list-style:none;padding:0;margin:0}.toc-list li{margin-bottom:0.5rem}.toc-list a{text-decoration:none;color:var(--slate-muted);font-size:0.95rem;display:block;padding:0.4rem 0.75rem;border-radius:6px;transition:all 0.2s}.toc-list a:hover,.toc-list a.active{background:var(--teal-light);color:var(--teal-main)}.reading-content{max-width:900px}.reading-content section{margin-bottom:6rem;scroll-margin-top:6rem}.reading-content h2{font-size:2.2rem;margin-bottom:1.5rem;color:var(--teal-dark)}.faq-container{display:flex;flex-direction:column;gap:1rem}.faq-item{border:1px solid var(--border);border-radius:12px;overflow:hidden;background:white;transition:all 0.3s ease}.faq-item.active{border-color:var(--teal-main);box-shadow:0 4px 20px rgba(13,148,136,0.08)}.faq-question{width:100%;padding:1.5rem;display:flex;justify-content:space-between;align-items:center;background:none;border:none;cursor:pointer;text-align:left}.faq-question h3{margin:0;font-size:1.1rem;font-weight:700;color:var(--teal-dark)}.faq-answer{max-height:0;overflow:hidden;transition:all 0.3s cubic-bezier(0.4,0,0.2,1)}.faq-item.active .faq-answer{max-height:1000px}.faq-answer-inner{padding:0 1.5rem 1.5rem;color:var(--slate-muted);line-height:1.7}@media (max-width:991px){.topic-layout-grid,.static-layout{grid-template-columns:1fr;gap:2rem}.toc-sidebar{display:none}}.guides-search-container{max-width:500px;margin:0 auto}.guides-search-input{width:100%;padding:1.25rem 2rem;border-radius:50px;border:2px solid rgba(255,255,255,0.2);background:rgba(255,255,255,0.1);backdrop-filter:blur(10px);color:white;font-size:1.1rem;font-family:inherit;transition:all 0.3s ease}.guides-search-input::placeholder{color:rgba(255,255,255,0.6)}.guides-search-input:focus{outline:none;border-color:var(--turquoise-surf);background:rgba(255,255,255,0.15);box-shadow:0 0 30px rgba(0,180,216,0.2)}.category-section{margin-bottom:1.5rem;border-radius:20px;border:1px solid var(--border);background:var(--bg-card);overflow:hidden;transition:all 0.3s ease}.category-section:hover{border-color:var(--frosted-blue);box-shadow:0 10px 30px rgba(3,4,94,0.06)}.category-accordion{width:100%;display:flex;align-items:center;gap:1rem;padding:1.5rem 2rem;border:none;background:transparent;cursor:pointer;font-family:inherit;transition:all 0.3s ease}.category-accordion:hover{background:rgba(202,240,248,0.2)}.category-icon{font-size:1.5rem}.category-name{flex:1;text-align:left;font-size:1.25rem;font-weight:700;color:var(--deep-twilight)}.category-count{font-size:0.85rem;font-weight:600;color:var(--text-muted);background:var(--light-cyan);padding:0.35rem 0.85rem;border-radius:50px}.accordion-arrow{font-size:0.85rem;color:var(--text-muted);transition:transform 0.3s ease}.category-section.expanded .accordion-arrow{transform:rotate(180deg)}.category-content{max-height:0;overflow:hidden;transition:max-height 0.4s cubic-bezier(0.4,0,0.2,1)}.category-section.expanded .category-content{max-height:2000px}.category-content .topic-grid{padding:0 2rem 2rem}@media (max-width:768px){.study-guides-header h1{font-size:2.5rem}.category-accordion{padding:1.25rem 1.5rem}.category-name{font-size:1.1rem}}.practice-exams-header{background:linear-gradient(135deg,var(--deep-twilight) 0%,#023e8a 50%,var(--bright-teal-blue) 100%);padding:6rem 0 5rem;text-align:center;color:white;position:relative;overflow:hidden}.practice-exams-header::before{content:'';position:absolute;top:-20%;right:-5%;width:40%;height:100%;background:radial-gradient(circle,rgba(0,180,216,0.15) 0%,transparent 60%);pointer-events:none}.exams-badge{background:rgba(16,185,129,0.2);color:#a7f3d0;padding:0.5rem 1.25rem;border-radius:50px;font-size:0.85rem;font-weight:700;text-transform:uppercase;letter-spacing:1px;display:inline-block;margin-bottom:1.5rem;border:1px solid rgba(16,185,129,0.3)}.exams-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:2rem}.exam-card{background:var(--bg-card);border:1px solid var(--border);border-radius:24px;padding:2rem;text-decoration:none;color:inherit;display:flex;flex-direction:column;transition:all 0.4s cubic-bezier(0.4,0,0.2,1);position:relative;overflow:hidden}.exam-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--bright-teal-blue),var(--turquoise-surf));transform:scaleX(0);transition:transform 0.3s ease}.exam-card:hover{transform:translateY(-10px);box-shadow:0 25px 50px rgba(3,4,94,0.12);border-color:var(--turquoise-surf)}.exam-card:hover::before{transform:scaleX(1)}.exam-card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.25rem}.exam-difficulty{padding:0.35rem 0.85rem;border-radius:50px;font-size:0.75rem;font-weight:700;text-transform:uppercase;letter-spacing:0.5px}.exam-number{font-size:0.85rem;font-weight:700;color:var(--text-muted)}.exam-card h3{font-size:1.35rem;font-weight:700;color:var(--deep-twilight);margin:0 0 0.75rem}.exam-card p{color:var(--text-muted);font-size:0.95rem;line-height:1.6;flex-grow:1;margin:0 0 1.5rem}.exam-card-footer{display:flex;justify-content:space-between;align-items:center;padding-top:1rem;border-top:1px solid var(--border)}.exam-meta{display:flex;align-items:center;gap:0.5rem;font-size:0.85rem;color:var(--text-muted)}.meta-icon{font-size:1rem}.exam-cta{font-weight:700;color:var(--bright-teal-blue);font-size:0.9rem}.cta-light{background:linear-gradient(135deg,var(--light-cyan),rgba(202,240,248,0.5)) !important;border:1px solid var(--frosted-blue) !important}.cta-light h2{color:var(--deep-twilight) !important}.cta-light p{color:var(--text-muted) !important}@media (max-width:768px){.practice-exams-header h1{font-size:2.5rem}.exam-stats-row{gap:2rem}.exam-stat-number{font-size:2rem}.exams-grid{grid-template-columns:1fr}}.zen-study-container{min-height:100vh;background:linear-gradient(180deg,var(--deep-twilight) 0%,#011627 100%)}.deck-filters{display:flex;flex-wrap:wrap;gap:0.75rem;justify-content:center;margin-bottom:3rem;padding:1.5rem;background:rgba(255,255,255,0.03);border-radius:20px;border:1px solid rgba(255,255,255,0.05)}.filter-btn{padding:0.6rem 1.25rem;background:rgba(255,255,255,0.05);border:1px solid rgba(255,255,255,0.1);border-radius:50px;color:rgba(255,255,255,0.7);font-size:0.85rem;font-weight:600;cursor:pointer;transition:all 0.3s ease;font-family:inherit}.filter-btn:hover{background:rgba(0,180,216,0.15);border-color:var(--turquoise-surf);color:var(--turquoise-surf)}.filter-btn.active{background:linear-gradient(135deg,var(--bright-teal-blue),var(--turquoise-surf));border-color:transparent;color:white}.flashcards-container{max-width:700px;margin:0 auto;perspective:1200px}.flashcard-wrapper{margin-bottom:2rem}.flashcard{width:100%;min-height:380px;position:relative;transform-style:preserve-3d;transition:transform 0.7s cubic-bezier(0.4,0.2,0.2,1);cursor:pointer}.flashcard.is-flipped{transform:rotateY(180deg)}.flashcard-face{position:absolute;width:100%;min-height:380px;backface-visibility:hidden;-webkit-backface-visibility:hidden;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:3rem 2.5rem;text-align:center;border-radius:28px;box-sizing:border-box}.flashcard-front{background:linear-gradient(135deg,rgba(0,119,182,0.95),rgba(0,180,216,0.9));border:1px solid rgba(255,255,255,0.15);box-shadow:0 30px 60px rgba(0,0,0,0.4),inset 0 1px 0 rgba(255,255,255,0.2);color:white}.flashcard-front::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(circle at 30% 20%,rgba(255,255,255,0.1),transparent 60%);border-radius:28px;pointer-events:none}.flashcard-back{background:linear-gradient(135deg,#f8fafc 0%,#e2e8f0 100%);border:1px solid rgba(0,119,182,0.2);box-shadow:0 30px 60px rgba(0,0,0,0.3),inset 0 1px 0 rgba(255,255,255,0.9);color:var(--deep-twilight);transform:rotateY(180deg)}.flashcard-category{background:rgba(255,255,255,0.2);padding:0.5rem 1.25rem;border-radius:50px;font-size:0.8rem;font-weight:700;text-transform:uppercase;letter-spacing:1.5px;margin-bottom:1.5rem}.flashcard-back .flashcard-category{background:var(--light-cyan);color:var(--bright-teal-blue)}.flashcard-front h2{font-size:2rem;font-weight:800;margin:0;line-height:1.3;color:white}.definition{font-size:1.15rem;line-height:1.8;color:var(--text);max-height:250px;overflow-y:auto;padding-right:0.5rem}.definition::-webkit-scrollbar{width:4px}.definition::-webkit-scrollbar-thumb{background:var(--frosted-blue);border-radius:2px}.confidence-controls{display:flex;justify-content:center;gap:1rem;margin:2rem 0}.conf-btn{padding:0.85rem 1.5rem;border-radius:12px;font-weight:700;font-size:0.9rem;cursor:pointer;transition:all 0.3s ease;border:2px solid transparent;font-family:inherit}.conf-skip{background:rgba(255,255,255,0.05);border-color:rgba(255,255,255,0.1);color:rgba(255,255,255,0.6)}.conf-skip:hover{background:rgba(255,255,255,0.1);color:white}.conf-review{background:rgba(251,191,36,0.15);border-color:rgba(251,191,36,0.3);color:#fcd34d}.conf-review:hover{background:rgba(251,191,36,0.25);border-color:#fcd34d}.conf-got-it{background:rgba(16,185,129,0.15);border-color:rgba(16,185,129,0.3);color:#6ee7b7}.conf-got-it:hover{background:rgba(16,185,129,0.25);border-color:#6ee7b7}.flashcard-controls{display:flex;justify-content:center;align-items:center;gap:2rem}.flashcard-nav-btn{width:56px;height:56px;border-radius:50%;background:rgba(255,255,255,0.05);border:1px solid rgba(255,255,255,0.1);color:rgba(255,255,255,0.7);font-size:1.5rem;cursor:pointer;transition:all 0.3s ease;display:flex;align-items:center;justify-content:center}.flashcard-nav-btn:hover{background:var(--turquoise-surf);border-color:var(--turquoise-surf);color:white;transform:scale(1.1)}.flashcard-progress{font-size:1.1rem;font-weight:700;color:rgba(255,255,255,0.6)}.flashcard-progress span:first-child{color:var(--turquoise-surf);font-size:1.4rem}.concept-directory{margin-top:5rem;padding:3rem;background:rgba(255,255,255,0.02);border-radius:28px;border:1px solid rgba(255,255,255,0.05)}.directory-header{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1.5rem;margin-bottom:2rem}.directory-header h2{font-size:1.75rem;font-weight:800;color:white;margin:0}.directory-search input{background:rgba(255,255,255,0.05);border:1px solid rgba(255,255,255,0.1);color:white;padding:0.9rem 1.5rem;border-radius:50px;min-width:280px;font-size:0.95rem;font-family:inherit;transition:all 0.3s ease}.directory-search input::placeholder{color:rgba(255,255,255,0.4)}.directory-search input:focus{outline:none;border-color:var(--turquoise-surf);background:rgba(255,255,255,0.08);box-shadow:0 0 20px rgba(0,180,216,0.15)}.directory-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:1rem;max-height:500px;overflow-y:auto;padding:0.5rem;padding-right:1rem}.directory-grid::-webkit-scrollbar{width:6px}.directory-grid::-webkit-scrollbar-track{background:transparent}.directory-grid::-webkit-scrollbar-thumb{background:rgba(255,255,255,0.1);border-radius:3px}.directory-item{display:flex;align-items:center;gap:0.75rem;padding:1rem 1.25rem;background:rgba(255,255,255,0.03);border:1px solid rgba(255,255,255,0.05);border-radius:12px;color:rgba(255,255,255,0.75);font-size:0.9rem;cursor:pointer;transition:all 0.3s ease}.directory-item:hover{background:rgba(0,180,216,0.1);border-color:rgba(0,180,216,0.3);color:white;transform:translateX(5px)}.directory-item.active{background:rgba(0,180,216,0.2);border-color:var(--turquoise-surf);color:white}.dir-indicator{width:10px;height:10px;border-radius:50%;flex-shrink:0}.dir-indicator.cat-A{background:#06b6d4}.dir-indicator.cat-B{background:#8b5cf6}.dir-indicator.cat-C{background:#10b981}.dir-indicator.cat-D{background:#f59e0b}.dir-indicator.cat-E{background:#ec4899}.dir-indicator.cat-F{background:#3b82f6}.dir-indicator.cat-G{background:#ef4444}@media (max-width:768px){.flashcard-face{min-height:320px;padding:2rem 1.5rem}.flashcard-front h2{font-size:1.5rem}.definition{font-size:1rem}.confidence-controls{flex-direction:column;gap:0.75rem}.conf-btn{width:100%}.directory-grid{grid-template-columns:1fr}.directory-search input{min-width:100%}}.topic-content-section{padding:0;background:var(--bg-main);margin-top:3rem}.topic-grid-layout{display:grid;grid-template-columns:1fr 320px;gap:1rem}.key-takeaway-box{background:linear-gradient(135deg,#caf0f8 0%,#e8f9fd 100%);border:1px solid #90e0ef;border-radius:16px;padding:1.5rem 2rem;margin-bottom:2rem;display:flex;gap:1rem;align-items:flex-start}.key-takeaway-box .icon{font-size:1.5rem;flex-shrink:0}.key-takeaway-box .content strong{color:#03045e;font-size:1rem}.key-takeaway-box .content p{color:#0077b6;margin:0.5rem 0 0;line-height:1.6}.article-body{background:white;border:1px solid var(--border);border-radius:16px;padding:1.5rem;line-height:1.75;font-size:1.02rem;color:#1e293b}.article-body h2{color:#03045e;font-size:1.5rem;font-weight:800;margin:1.5rem 0 0.75rem;padding-bottom:0.4rem;border-bottom:2px solid #caf0f8}.article-body h3{color:#0077b6;font-size:1.2rem;font-weight:700;margin:1.25rem 0 0.5rem}.article-body p{margin:0 0 1rem}.article-body strong{color:#03045e}.article-body ul,.article-body ol{margin:1rem 0 1.5rem 1.5rem}.article-body li{margin-bottom:0.5rem}.next-lesson-box{background:#ffffff;border:1px solid #e2e8f0;border-left:4px solid var(--bright-teal-blue);border-radius:12px;padding:1.5rem;display:flex;flex-direction:column;gap:0.5rem}.next-label{font-size:0.75rem;font-weight:700;text-transform:uppercase;letter-spacing:1px;color:var(--bright-teal-blue)}.next-lesson-box h3{color:var(--deep-twilight);font-size:1.15rem;font-weight:700;margin:0;line-height:1.4}.next-lesson-box .btn-next{display:inline-flex;align-items:center;gap:0.5rem;background:transparent;color:var(--bright-teal-blue);padding:0;text-decoration:none;font-weight:700;font-size:0.9rem;transition:all 0.2s ease;margin-top:0.25rem}.next-lesson-box .btn-next:hover{color:var(--deep-twilight);transform:translateX(4px)}.topic-sidebar{display:flex;flex-direction:column;gap:1.5rem}.sidebar-card{background:white;border:1px solid var(--border);border-radius:16px;padding:1.5rem}.sidebar-card h4{color:#03045e;font-size:1rem;font-weight:700;margin:0 0 1rem;padding-bottom:0.75rem;border-bottom:2px solid #caf0f8}.sidebar-card p{color:#64748b;font-size:0.9rem;margin:0 0 1rem}.sidebar-card .btn-sidebar{display:block;width:100%;text-align:center;background:linear-gradient(135deg,#0077b6,#00b4d8);color:white;padding:0.75rem;border-radius:10px;text-decoration:none;font-weight:700;transition:all 0.3s ease}.sidebar-card .btn-sidebar:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,119,182,0.3)}.related-links{list-style:none;padding:0;margin:0}.related-links li{margin-bottom:0.75rem}.related-links a{display:block;padding:0.6rem 1rem;background:#f8fafc;border-radius:8px;color:#0077b6;text-decoration:none;font-size:0.9rem;transition:all 0.2s}.related-links a:hover{background:#caf0f8;transform:translateX(5px)}@media (max-width:991px){.topic-grid-layout{grid-template-columns:1fr}.topic-sidebar{position:static}.topic-hero h1{font-size:2rem}}.flashcards-page{min-height:100vh;position:relative;padding-bottom:4rem}.deck-filters{display:flex;justify-content:center;gap:0.75rem;flex-wrap:wrap;margin-bottom:3rem;position:relative;z-index:10}.filter-btn{padding:0.7rem 1.75rem;background:rgba(255,255,255,0.6);backdrop-filter:blur(8px);border:1px solid rgba(0,119,182,0.1);border-radius:50px;font-size:0.9rem;font-weight:700;color:var(--deep-twilight);cursor:pointer;transition:all 0.3s cubic-bezier(0.4,0,0.2,1);box-shadow:0 4px 6px rgba(0,0,0,0.02)}.filter-btn:hover{background:white;transform:translateY(-2px);box-shadow:0 8px 15px rgba(0,119,182,0.08)}.filter-btn.active{background:linear-gradient(135deg,var(--deep-twilight) 0%,var(--bright-teal-blue) 100%);color:white;border:none;box-shadow:0 10px 20px rgba(3,4,94,0.2)}.flashcard-section{max-width:800px;margin:0 auto;perspective:2000px}.card-3d-container{perspective:2000px;margin-bottom:3rem}.flashcard{position:relative;width:100%;height:480px;text-align:center;transition:transform 0.8s cubic-bezier(0.175,0.885,0.32,1.275);transform-style:preserve-3d;cursor:pointer}.flashcard.flipped{transform:rotateY(180deg)}.card-face{position:absolute;width:100%;height:100%;backface-visibility:hidden;-webkit-backface-visibility:hidden;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:3rem;border-radius:32px;box-shadow:0 25px 50px -12px rgba(0,0,0,0.5);border:1px solid rgba(255,255,255,0.1);overflow:hidden}.card-front{background:linear-gradient(135deg,#023e8a 0%,#0077b6 100%);color:white}.card-front::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 10% 20%,rgba(255,255,255,0.1),transparent 50%);pointer-events:none}.card-back{background:white;color:var(--deep-twilight);transform:rotateY(180deg)}.category-badge{background:rgba(255,255,255,0.15);padding:0.4rem 1rem;border-radius:50px;font-size:0.75rem;font-weight:700;text-transform:uppercase;letter-spacing:2px;margin-bottom:2rem;backdrop-filter:blur(4px)}.card-back .category-badge{background:rgba(0,119,182,0.1);color:#0077b6}.question-label{font-size:0.9rem;text-transform:uppercase;letter-spacing:1.5px;opacity:0.8;margin-bottom:1rem}.concept-name{font-size:3rem;font-weight:800;line-height:1.1;margin:0 0 1rem;background:linear-gradient(180deg,#fff 0%,rgba(255,255,255,0.8) 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;text-shadow:0 2px 10px rgba(0,0,0,0.1)}.definition-text{font-size:1.25rem;line-height:1.7;color:var(--slate-text);max-height:280px;overflow-y:auto;padding:0 1rem;font-weight:500}.flip-hint{position:absolute;bottom:2rem;font-size:0.8rem;text-transform:uppercase;letter-spacing:1px;opacity:0.6}.confidence-row{display:flex;justify-content:center;gap:1rem;margin-bottom:2.5rem}.conf-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:0.4rem;width:100px;height:100px;border-radius:20px;border:1px solid rgba(255,255,255,0.1);background:rgba(255,255,255,0.05);color:rgba(255,255,255,0.8);cursor:pointer;transition:all 0.3s cubic-bezier(0.4,0,0.2,1);backdrop-filter:blur(5px)}.conf-btn i{font-size:1.8rem;filter:grayscale(100%);transition:all 0.3s}.conf-btn span{font-size:0.8rem;font-weight:700;text-transform:uppercase}.conf-btn:hover{transform:translateY(-5px);background:rgba(255,255,255,0.1);color:white}.conf-btn:hover i{filter:grayscale(0%);transform:scale(1.1)}.conf-got-it:hover{border-color:#2ec4b6}.conf-review:hover{border-color:#ff9f1c}.conf-skip:hover{border-color:#90e0ef}.flashcard-controls{display:flex;align-items:center;justify-content:center;gap:2rem;margin-bottom:3rem}.flashcard-nav-btn{width:56px;height:56px;border-radius:50%;background:rgba(255,255,255,0.1);border:1px solid rgba(255,255,255,0.1);color:white;font-size:1.25rem;cursor:pointer;transition:all 0.2s;display:flex;align-items:center;justify-content:center}.flashcard-nav-btn:hover{background:white;color:var(--deep-twilight);transform:scale(1.1)}.flashcard-progress{font-size:1.1rem;font-weight:700;font-variant-numeric:tabular-nums;color:rgba(255,255,255,0.6)}.concept-directory{margin-top:4rem;padding-top:3rem;border-top:1px solid rgba(255,255,255,0.1)}.directory-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;flex-wrap:wrap;gap:1.5rem}.directory-header h2{color:white;font-size:1.8rem;margin:0}.directory-search input{background:rgba(255,255,255,0.1);border:1px solid rgba(255,255,255,0.2);color:white;padding:0.8rem 1.5rem;border-radius:50px;width:300px;font-size:0.95rem;transition:all 0.3s}.directory-search input:focus{background:rgba(255,255,255,0.2);border-color:#90e0ef;outline:none;box-shadow:0 0 15px rgba(144,224,239,0.2)}.directory-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1rem;max-height:500px;overflow-y:auto;padding-right:0.5rem}.directory-grid::-webkit-scrollbar{width:6px}.directory-grid::-webkit-scrollbar-thumb{background:rgba(255,255,255,0.2);border-radius:10px}.concept-item{display:flex;align-items:center;gap:1rem;padding:1rem;background:rgba(255,255,255,0.03);border:1px solid rgba(255,255,255,0.05);border-radius:12px;color:rgba(255,255,255,0.7);cursor:pointer;transition:all 0.2s}.concept-item:hover{background:rgba(255,255,255,0.1);color:white;transform:translateX(5px)}.concept-item.active{border-color:#00b4d8;background:rgba(0,180,216,0.1);color:white}@media (max-width:768px){.flashcard{height:420px}.card-face{padding:2rem}.concept-name{font-size:2.2rem}.confidence-row{gap:0.5rem}.conf-btn{width:80px;height:80px}.directory-search input{width:100%}}.hero-text{max-width:800px;margin:0 auto;position:relative;z-index:10;display:flex;flex-direction:column;align-items:center}.hero-text h1{color:white;font-size:3.5rem;font-weight:800;margin:0.5rem 0 1.5rem;letter-spacing:-2px;line-height:1.1;text-shadow:0 2px 10px rgba(0,0,0,0.1)}.hero-text p,.subtitle{font-size:1.25rem;color:rgba(255,255,255,0.9);max-width:700px;line-height:1.6;margin:0 auto}.topic-grid-category{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:1.5rem}.card-icon{width:50px;height:50px;background:#f0f9ff;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.5rem}.card-content h3{color:#03045e;font-size:1.4rem;font-weight:700;margin:0 0 0.75rem;line-height:1.3}.card-content p{color:#334155;font-size:1rem;line-height:1.6;margin:0 0 1.5rem;display:-webkit-box;-webkit-line-clamp:3;line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.read-more{color:#00b4d8;font-weight:700;font-size:0.95rem;transition:all 0.3s ease}.practice-exams-header,.category-hero,.topic-hero,.study-guides-header,.static-page-header{background:radial-gradient(circle at 50% 0%,rgba(3,4,94,0.4) 0%,transparent 70%),radial-gradient(circle at 100% 100%,rgba(0,180,216,0.2) 0%,transparent 50%),linear-gradient(135deg,var(--deep-twilight) 0%,#023e8a 50%,var(--bright-teal-blue) 100%);padding:4rem;text-align:center;color:white;position:relative;overflow:hidden;margin-bottom:0;border-radius:0 0 50px 50px;box-shadow:0 20px 40px rgba(0,0,0,0.15);display:flex;flex-direction:column;align-items:center}.breadcrumb-nav .breadcrumb,.topic-breadcrumb,.breadcrumb{display:flex;justify-content:center;align-items:center;list-style:none;padding:0;margin:0 0 1.5rem;gap:0.5rem;font-size:0.9rem;font-weight:600;background:transparent !important;border:none !important;box-shadow:none !important;backdrop-filter:none !important}.breadcrumb-nav .breadcrumb li a,.topic-breadcrumb a,.breadcrumb li a{color:rgba(255,255,255,0.85);text-decoration:none;transition:all 0.2s ease}.breadcrumb-nav .breadcrumb li a:hover,.topic-breadcrumb a:hover,.breadcrumb li a:hover{color:white;transform:translateY(-1px)}.breadcrumb-nav .breadcrumb li.active,.topic-breadcrumb .current,.breadcrumb li.active{color:white;opacity:1}.breadcrumb-nav .breadcrumb li:not(:last-child)::after,.topic-breadcrumb .sep,.breadcrumb li:not(:last-child)::after{content:'›';margin-left:0.5rem;color:rgba(255,255,255,0.5);font-size:1.1rem;line-height:1}.breadcrumb-dark .breadcrumb{justify-content:flex-start;margin-bottom:1rem}.breadcrumb-dark .breadcrumb li a{color:var(--text-muted)}.breadcrumb-dark .breadcrumb li a:hover{color:var(--deep-twilight)}.breadcrumb-dark .breadcrumb li.active{color:var(--deep-twilight)}.breadcrumb-dark .breadcrumb li:not(:last-child)::after{color:var(--border)}.category-hero::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background-image:radial-gradient(rgba(255,255,255,0.05) 1px,transparent 1px);background-size:40px 40px;opacity:0.5;pointer-events:none}.btn-glass{display:inline-flex;align-items:center;gap:0.75rem;background:rgba(255,255,255,0.1);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,0.2);padding:0.8rem 1.75rem;border-radius:50px;color:white !important;font-weight:700;text-decoration:none;transition:all 0.3s cubic-bezier(0.4,0,0.2,1);margin-top:1.5rem;box-shadow:0 4px 15px rgba(0,0,0,0.1);font-size:0.95rem}.btn-glass:hover{background:rgba(255,255,255,0.18);transform:translateY(-3px);box-shadow:0 8px 25px rgba(0,0,0,0.2);border-color:rgba(255,255,255,0.4)}.btn-glass .icon{font-size:1.25rem}.btn-emerald{display:inline-flex;align-items:center;gap:0.75rem;background:#10b981;color:white !important;padding:0.8rem 1.75rem;border-radius:50px;font-weight:700;text-decoration:none;transition:all 0.3s cubic-bezier(0.4,0,0.2,1);box-shadow:0 4px 15px rgba(16,185,129,0.3);font-size:0.95rem;border:1px solid rgba(255,255,255,0.2)}.btn-emerald:hover{background:#059669;transform:translateY(-3px);box-shadow:0 8px 25px rgba(5,150,105,0.4);border-color:rgba(255,255,255,0.4)}.hero-badge,.category-badge,.exams-badge{background:rgba(255,255,255,0.1);color:white;padding:0.5rem 1.25rem;border-radius:50px;font-weight:800;font-size:0.75rem;text-transform:uppercase;letter-spacing:1.5px;border:1px solid rgba(255,255,255,0.2);display:inline-block;margin-bottom:1.5rem}.hero-stats-row,.exam-stats-row{display:flex;justify-content:center;gap:3rem;flex-wrap:wrap;margin-top:2.5rem}.hero-stat,.exam-stat{text-align:center}.hero-stat-number,.exam-stat-number{display:block;font-size:2.5rem;font-weight:800;color:white;line-height:1;margin-bottom:0.5rem}.hero-stat-label,.exam-stat-label{font-size:0.85rem;color:rgba(255,255,255,0.7);text-transform:uppercase;letter-spacing:1px;font-weight:700}@media (max-width:768px){.practice-exams-header,.category-hero,.topic-hero,.study-guides-header,.static-page-header{padding:4rem 1rem 3rem;border-radius:0 0 30px 30px}}.flashcard-study-zone{background:rgba(255,255,255,0.9);backdrop-filter:blur(20px);border-radius:40px;padding:4rem 3rem;box-shadow:0 20px 60px rgba(3,4,94,0.08),0 0 0 1px rgba(144,224,239,0.2) inset;border:1px solid rgba(144,224,239,0.3);margin-bottom:4rem;position:relative;overflow:hidden}.flashcard-study-zone::before{content:'';position:absolute;top:0;left:0;right:0;height:6px;background:linear-gradient(90deg,var(--bright-teal-blue),var(--turquoise-surf),var(--bright-teal-blue));background-size:200% 100%;animation:timelineFlow 3s ease-in-out infinite}.flashcard-main-container{max-width:800px;margin:0 auto}.flashcard-progress-header{display:flex;flex-direction:column;gap:1rem}.progress-info{display:flex;justify-content:space-between;align-items:flex-end}.progress-label{font-size:0.85rem;font-weight:800;text-transform:uppercase;letter-spacing:1px;color:#1e293b}.progress-count{font-size:1.25rem;font-weight:800;color:var(--deep-twilight)}.flashcard-progress-bar{height:12px;background:#f1f5f9;border-radius:20px;overflow:hidden;position:relative}.progress-fill{height:100%;background:linear-gradient(90deg,var(--bright-teal-blue),var(--turquoise-surf));width:0%;transition:width 0.4s cubic-bezier(0.175,0.885,0.32,1.275);border-radius:20px;box-shadow:0 0 15px rgba(0,180,216,0.3)}.card-3d-viewport{perspective:2000px;margin:3rem 0}.flashcard-wrapper{width:100%;height:480px;position:relative}.flashcard{width:100%;height:100%;position:absolute;transform-style:preserve-3d;transition:transform 0.8s cubic-bezier(0.34,1.56,0.64,1);cursor:pointer}.flashcard.flipped{transform:rotateY(180deg)}.card-face{position:absolute;width:100%;height:100%;backface-visibility:hidden;-webkit-backface-visibility:hidden;border-radius:40px;padding:4rem 3rem;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;box-shadow:0 40px 100px rgba(0,0,0,0.1);border:1px solid var(--border)}.card-face-badge{position:absolute;top:2rem;background:var(--light-cyan);color:var(--bright-teal-blue);padding:0.5rem 1.25rem;border-radius:50px;font-size:0.75rem;font-weight:800;letter-spacing:2px;text-transform:uppercase}.card-front{background:#ffffff;border:1px solid rgba(144,224,239,0.4);background-image:radial-gradient(var(--bg-alt) 1px,transparent 1px);background-size:30px 30px}.card-front .concept-name{font-size:3.5rem;font-weight:800;color:white;background:var(--bright-teal-blue);padding:1rem 2.5rem;border-radius:24px;line-height:1.1;letter-spacing:-2px;display:inline-block}.card-back{background:var(--deep-twilight);color:white;border:none;transform:rotateY(180deg)}.badge-back{background:rgba(255,255,255,0.1);color:var(--frosted-blue);border:1px solid rgba(255,255,255,0.1)}.definition-scroll{max-height:320px;overflow-y:auto;width:100%;padding:0 1rem}.definition-text{font-size:1.4rem;line-height:1.7;font-weight:500;color:#f1f5f9}.flip-hint{position:absolute;bottom:2rem;font-size:0.85rem;font-weight:600;color:var(--text-muted);opacity:0.6}.hint-white{color:white;opacity:0.5}.study-actions-row{display:flex;justify-content:center;align-items:center;gap:2rem}.study-btn.btn-nav{width:60px;height:60px;background:white;border:1px solid rgba(0,119,182,0.15);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:var(--bright-teal-blue);cursor:pointer;transition:all 0.3s cubic-bezier(0.175,0.885,0.32,1.275);box-shadow:0 4px 6px rgba(0,0,0,0.05)}.study-btn.btn-nav:hover{background:var(--bright-teal-blue);color:white;transform:scale(1.1);box-shadow:0 10px 20px rgba(0,119,182,0.2)}.confidence-group{display:flex;background:rgba(202,240,248,0.3);padding:0.5rem;border-radius:100px;gap:0.5rem;border:1px solid rgba(0,119,182,0.1)}.conf-pill{padding:0.8rem 2rem;border-radius:50px;font-weight:700;cursor:pointer;transition:all 0.3s ease;border:none;font-family:inherit;font-size:0.95rem;display:flex;align-items:center;gap:0.5rem}.conf-pill i{font-style:normal}.conf-review{background:white;color:#64748b}.conf-review:hover{background:#f1f5f9;color:var(--deep-twilight)}.conf-got-it{background:linear-gradient(135deg,var(--deep-twilight) 0%,var(--bright-teal-blue) 100%);color:white;box-shadow:0 4px 15px rgba(3,4,94,0.2)}.conf-got-it:hover{transform:translateY(-3px) scale(1.02);background:linear-gradient(135deg,var(--bright-teal-blue) 0%,var(--turquoise-surf) 100%);box-shadow:0 10px 30px rgba(0,119,182,0.4)}.clinical-library-section{background:linear-gradient(180deg,#f8fafc 0%,#f1f5f9 100%);border-top:1px solid var(--border)}.library-header-premium{text-align:center;max-width:800px;margin:0 auto 4rem}.library-header-premium h2{font-size:3rem;color:var(--deep-twilight);margin:1rem 0;font-weight:800;letter-spacing:-1.5px}.library-header-premium p{font-size:1.2rem;color:var(--slate-muted)}.library-search-wrapper{margin-top:2.5rem;display:flex;justify-content:center}.search-box-premium{width:100%;max-width:600px;position:relative;background:white;padding:0.5rem;border-radius:100px;display:flex;align-items:center;gap:1rem;box-shadow:0 10px 30px rgba(3,4,94,0.05);border:1px solid rgba(0,119,182,0.1);transition:all 0.3s ease}.search-box-premium:focus-within{box-shadow:0 15px 40px rgba(0,119,182,0.15);border-color:var(--bright-teal-blue);transform:translateY(-2px)}.search-icon{font-style:normal;font-size:1.25rem;margin-left:1.5rem;opacity:0.5}.search-box-premium input{border:none;background:transparent;padding:0.75rem 0;width:100%;font-size:1.1rem;font-family:inherit;color:var(--deep-twilight);outline:none}.concepts-grid-premium{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:2rem}.concept-premium-card{background:white;border:1px solid rgba(0,119,182,0.08);border-radius:28px;padding:2.5rem;cursor:pointer;transition:all 0.4s cubic-bezier(0.175,0.885,0.32,1.275);position:relative;display:flex;flex-direction:column;box-shadow:0 4px 6px rgba(0,0,0,0.02)}.concept-premium-card .cat-pill{align-self:flex-start;margin-bottom:1.5rem}.concept-premium-card h3{font-size:1.5rem;font-weight:800;color:var(--deep-twilight);margin:0 0 1rem;line-height:1.2}.card-mini-desc{font-size:0.95rem;color:var(--slate-muted);line-height:1.6;margin-bottom:2rem;flex-grow:1}.premium-card-footer{display:flex;align-items:center;color:var(--bright-teal-blue);font-weight:700;font-size:0.9rem;text-transform:uppercase;letter-spacing:0.5px}.concept-premium-card:hover{transform:translateY(-10px);box-shadow:0 25px 50px rgba(3,4,94,0.1);border-color:var(--frosted-blue)}.concept-premium-card.active{background:white;border:2px solid var(--bright-teal-blue);box-shadow:0 15px 40px rgba(0,119,182,0.15)}.concept-premium-card.active::after{content:'CURRENTLY STUDYING';position:absolute;top:2.5rem;right:2.5rem;font-size:0.65rem;font-weight:900;color:var(--bright-teal-blue);letter-spacing:1px}.no-results-state{text-align:center;padding:5rem 0}.no-results-icon{font-size:4rem;margin-bottom:1.5rem;opacity:0.2}.no-results-state h3{font-size:1.5rem;color:var(--deep-twilight);margin-bottom:0.5rem}.no-results-state p{color:var(--slate-muted)}.cat-pill{padding:0.3rem 0.8rem;border-radius:50px;font-size:0.7rem;font-weight:800;text-transform:uppercase}.cat-pill.cat-A{background:rgba(239,71,111,0.1);color:#be123c}.cat-pill.cat-B{background:rgba(255,209,102,0.1);color:#92400e}.cat-pill.cat-C{background:rgba(6,214,160,0.1);color:#065f46}.cat-pill.cat-D{background:rgba(17,138,178,0.1);color:#155e75}.cat-pill.cat-E{background:rgba(7,59,76,0.1);color:#0f172a}.cat-pill.cat-F{background:rgba(157,78,221,0.1);color:#6d28d9}@media (max-width:768px){.flashcard-study-zone{padding:2rem 1.5rem}.flashcard-wrapper{height:400px}.card-front .concept-name{font-size:2.2rem}.definition-text{font-size:1.1rem}.study-actions-row{flex-direction:column;gap:1.5rem}.confidence-group{width:100%;border-radius:20px;flex-direction:column}.conf-pill{width:100%;justify-content:center;padding:1rem}.study-btn.btn-nav{display:none}}.shortcut-tip{text-align:center;color:var(--text-muted);font-size:0.85rem;opacity:0.8}strong{font-weight:700}.clinical-insight{background:#f8fbff;border-left:4px solid var(--bright-teal-blue);padding:2rem;margin:2rem 0;border-radius:0 12px 12px 0;position:relative}.clinical-insight::before{content:'CLINICAL INSIGHT';font-size:0.75rem;font-weight:800;letter-spacing:1.5px;color:var(--bright-teal-blue);display:block;margin-bottom:0.5rem}.stat-box{background:var(--deep-twilight);color:white;padding:2.5rem 2rem;border-radius:20px;margin:3rem 0;text-align:center;border:1px solid rgba(255,255,255,0.1);box-shadow:0 10px 30px rgba(3,4,94,0.15)}.stat-box .stat-value{font-size:3.5rem;font-weight:900;color:var(--frosted-blue);display:block;line-height:1;margin-bottom:0.75rem;text-shadow:0 2px 10px rgba(0,0,0,0.2)}.stat-box .stat-label{font-size:1.1rem;color:white;opacity:1;font-weight:600;letter-spacing:0.5px;text-transform:uppercase}.citation-source{font-size:0.85rem;color:var(--slate-muted);border-top:1px solid var(--border);padding-top:1rem;margin-top:2rem;font-style:italic}.topic-synopsis-grid{display:flex;flex-direction:column;gap:1.5rem;margin:2.5rem 0}.premium-glass-card{position:relative;background:radial-gradient(circle at top right,#ffffff 0%,#f9fafb 100%);border:1px solid #f1f5f9;border-radius:12px;padding:1.25rem 1.5rem;box-shadow:0 4px 6px -1px rgba(0,0,0,0.05),0 2px 4px -1px rgba(0,0,0,0.03);transition:all 0.3s cubic-bezier(0.4,0,0.2,1);display:flex;flex-direction:column;overflow:hidden}.premium-glass-card:hover{transform:scale(1.01);box-shadow:0 10px 15px -3px rgba(0,119,182,0.08),0 4px 6px -2px rgba(0,0,0,0.03);border-color:#e2e8f0}.key-summary.premium-glass-card{border-left:5px solid var(--bright-teal-blue)}.key-takeaway-box.premium-glass-card{border-left:5px solid #f59e0b}.premium-glass-card .summary-header,.premium-glass-card strong{color:var(--deep-twilight);font-size:0.95rem;font-weight:800;margin-bottom:0.5rem;display:flex;align-items:center;gap:0.75rem}.premium-glass-card #summary-text,.premium-glass-card .content p{color:#475569;font-size:0.88rem;line-height:1.65;margin:0}.premium-glass-card .icon{font-size:1.1rem;display:inline-flex;align-items:center;justify-content:center}.premium-glass-card .summary-header{justify-content:space-between;width:100%}.voice-summary-control{margin:0}.btn-listen{background:#f8fafc;color:var(--slate-muted);border:1px solid #e2e8f0;padding:0.4rem 0.8rem;border-radius:6px;font-size:0.75rem;font-weight:700;cursor:pointer;display:flex;align-items:center;gap:0.5rem;transition:all 0.2s}.btn-listen:hover{background:var(--bright-teal-blue);color:white;border-color:var(--bright-teal-blue)}.trust-signals{display:flex;flex-wrap:wrap;gap:0.6rem;margin-top:1.25rem;justify-content:center}.confidence-badge{display:inline-flex;align-items:center;gap:0.4rem;padding:0.35rem 0.85rem;border-radius:100px;font-size:0.78rem;font-weight:600;border:1px solid rgba(255,255,255,0.25);background:rgba(255,255,255,0.12);color:rgba(255,255,255,0.9);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);transition:all 0.2s ease}.confidence-badge svg{flex-shrink:0;opacity:0.85}.confidence-badge.bcba-reviewed{background:rgba(16,185,129,0.15);border-color:rgba(16,185,129,0.4);color:#d1fae5}.confidence-badge.bcba-reviewed svg{color:#34d399}.confidence-badge.last-updated,.confidence-badge.reading-time{background:rgba(255,255,255,0.1);border-color:rgba(255,255,255,0.2)}.confidence-badge:hover{background:rgba(255,255,255,0.2);border-color:rgba(255,255,255,0.4)}.topic-footer-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;margin:2rem 0}@media (max-width:768px){.topic-footer-grid{grid-template-columns:1fr;gap:1rem}}.terminology-cluster{background:#f8fafc;padding:1.25rem 1.5rem;border-radius:12px;border:1px solid #e2e8f0;margin:1.5rem 0}.terminology-cluster::before{display:none}.terminology-cluster h4{margin:0 0 0.75rem;color:var(--slate-muted);display:flex;align-items:center;gap:0.5rem;font-size:0.8rem;font-weight:700;text-transform:uppercase;letter-spacing:0.5px}.terminology-cluster h4 svg{color:var(--bright-teal-blue);width:14px;height:14px}.term-tags{display:flex;flex-wrap:wrap;gap:0.5rem;margin:0}.term-tag{background:#fff;color:var(--bright-teal-blue);padding:0.4rem 0.9rem;border-radius:100px;font-size:0.82rem;font-weight:600;border:1px solid #e2e8f0;margin:0;transition:all 0.2s ease;cursor:default;display:inline-flex;align-items:center}.term-tag:first-of-type{background:var(--bright-teal-blue);color:white;border-color:var(--bright-teal-blue)}.term-tag:hover{background:var(--bright-teal-blue);color:white;border-color:var(--bright-teal-blue);transform:translateY(-1px)}.author-eeat-box{display:flex;align-items:center;gap:1.5rem;background:white;border:1px solid var(--border);padding:1.5rem 2rem;border-radius:16px;margin:3rem 0 1.5rem;box-shadow:0 4px 6px -1px rgba(0,0,0,0.02)}.author-avatar{width:60px;height:60px;background:linear-gradient(135deg,var(--deep-twilight),var(--bright-teal-blue));border-radius:50%;color:white;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:0.9rem;box-shadow:0 4px 10px rgba(3,4,94,0.2);border:2px solid white;outline:2px solid rgba(3,4,94,0.1)}.author-info h5{margin:0 0 0.25rem;font-size:1.1rem;color:var(--deep-twilight);font-weight:700}.author-info p{margin:0;font-size:0.9rem;color:var(--text-muted);line-height:1.5}.citation-section{background:#f8fafc;border-left:4px solid var(--slate-muted);padding:1.5rem 2rem;margin:2rem 0;border-radius:0 8px 8px 0}.citation-section h4{margin:0 0 1rem;font-size:1rem;text-transform:uppercase;letter-spacing:1px;color:var(--slate-muted);display:flex;align-items:center;gap:0.5rem}.citation-section h4::before{content:'📚';font-size:1.1rem}.citation-list{list-style:none;padding:0;margin:0}.citation-list li{margin-bottom:0.85rem;font-size:0.92rem;color:var(--text-muted);display:flex;gap:0.75rem;line-height:1.6}.citation-list li::before{content:'›';color:var(--bright-teal-blue);font-weight:800;font-size:1.3rem;line-height:1.1;flex-shrink:0}.citation-list cite{font-style:normal}.confidence-badge.last-updated{background:rgba(99,102,241,0.2);border:1px solid rgba(99,102,241,0.4)}.confidence-badge.reading-time{background:rgba(251,191,36,0.2);border:1px solid rgba(251,191,36,0.4)}.reading-progress-bar{position:fixed;top:0;left:0;width:0%;height:4px;background:linear-gradient(90deg,var(--bright-teal-blue),var(--turquoise-surf));z-index:9999;transition:width 0.1s linear}.scroll-to-top{position:fixed;bottom:2rem;right:2rem;width:48px;height:48px;border-radius:50%;background:var(--bright-teal-blue);color:white;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 12px rgba(0,119,182,0.3);opacity:0;visibility:hidden;transform:translateY(20px);transition:all 0.3s ease;z-index:1000}.scroll-to-top.visible{opacity:1;visibility:visible;transform:translateY(0)}.scroll-to-top:hover{background:var(--deep-twilight);transform:translateY(-2px)}.quiz-cta-box{background:linear-gradient(135deg,var(--bright-teal-blue) 0%,#0096c7 100%);border:none;border-radius:12px;padding:1.5rem;display:flex;align-items:center;gap:1.25rem;color:white}.quiz-cta-icon{font-size:2.2rem;flex-shrink:0;background:rgba(255,255,255,0.15);width:52px;height:52px;display:flex;align-items:center;justify-content:center;border-radius:12px}.review-card{min-width:260px;padding:2rem;background:white;border-radius:12px;box-shadow:0 4px 6px -1px rgba(0,0,0,0.05);flex:1}@media (max-width:480px){.review-card{min-width:100%;padding:1.5rem}}.quiz-cta-content h4{margin:0 0 0.25rem;font-size:1.05rem;font-weight:700;color:white}.quiz-cta-content p{margin:0 0 0.75rem;color:rgba(255,255,255,0.85);font-size:0.88rem}.btn-quiz-cta{display:inline-flex;align-items:center;gap:0.5rem;padding:0.6rem 1.25rem;background:white;color:var(--bright-teal-blue);text-decoration:none;border-radius:8px;font-weight:700;font-size:0.88rem;transition:all 0.2s}.btn-quiz-cta:hover{background:#f0f9ff;transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,0,0,0.15)}.trust-footer{background:#f8fafc;border:1px solid #e2e8f0;border-radius:12px;padding:1.25rem 1.5rem;margin:1.5rem 0}.trust-badge{display:flex;align-items:center;gap:1rem}.trust-badge .author-avatar{width:40px;height:40px;font-size:0.7rem;flex-shrink:0}.trust-info{display:flex;flex-direction:column;gap:0.15rem}.trust-info strong{font-size:0.88rem;color:var(--deep-twilight);font-weight:700}.trust-info span{font-size:0.78rem;color:var(--slate-muted)}.citation-details{margin-top:0.75rem;padding-top:0.75rem;border-top:1px solid #e2e8f0}.citation-details summary{font-size:0.82rem;font-weight:600;color:var(--slate-muted);cursor:pointer;user-select:none;transition:color 0.2s}.citation-details summary:hover{color:var(--bright-teal-blue)}.citation-details .citation-list{list-style:none;padding:0;margin:0.75rem 0 0}.citation-details .citation-list li{font-size:0.8rem;color:var(--slate-muted);padding:0.3rem 0;line-height:1.5;border-bottom:1px solid #f1f5f9}.citation-details .citation-list li:last-child{border-bottom:none}.category-filters{display:flex;flex-wrap:wrap;gap:1rem;margin-bottom:3rem;justify-content:center}.filter-btn{padding:0.75rem 1.5rem;border-radius:50px;border:2px solid var(--border);background:transparent;color:var(--text-muted);font-weight:600;cursor:pointer;transition:all 0.2s}.filter-btn.active{background:var(--bright-teal-blue);border-color:var(--bright-teal-blue);color:white;box-shadow:0 4px 12px rgba(0,119,182,0.2)}.filter-btn:hover:not(.active){border-color:var(--bright-teal-blue);color:var(--bright-teal-blue)}.voice-summary-control{margin-top:1rem;display:flex;align-items:center;gap:0.75rem}.btn-listen{display:flex;align-items:center;gap:0.5rem;padding:0.5rem 1rem;background:white;border:1px solid var(--border);border-radius:8px;color:var(--bright-teal-blue);font-size:0.9rem;font-weight:600;cursor:pointer;transition:all 0.2s}.btn-listen:hover{background:var(--light-cyan);border-color:var(--bright-teal-blue)}.btn-listen.playing{background:var(--bright-teal-blue);color:white;border-color:var(--bright-teal-blue)}.curriculum-stats{display:flex;flex-wrap:wrap;gap:1rem;margin-top:1.5rem}.stat-chip{background:rgba(255,255,255,0.1);border:1px solid rgba(255,255,255,0.2);padding:0.4rem 0.8rem;border-radius:100px;font-size:0.85rem;color:white;backdrop-filter:blur(4px)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}:focus-visible{outline:3px solid var(--bright-teal-blue);outline-offset:4px;border-radius:4px}.sticky-cta{position:fixed;bottom:0;left:0;right:0;background:white;padding:1rem;box-shadow:0 -4px 20px rgba(0,0,0,0.1);transform:translateY(100%);transition:transform 0.3s cubic-bezier(0.16,1,0.3,1);z-index:999;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.sticky-cta.visible{transform:translateY(0)}.sticky-cta p{margin:0;font-weight:600;color:var(--deep-twilight);font-size:0.95rem}.sticky-cta .btn{padding:0.5rem 1.25rem;font-size:0.9rem}@media (min-width:768px){.sticky-cta{display:none !important}}.toast-notification{position:fixed;bottom:2rem;left:50%;transform:translateX(-50%) translateY(100px);background:rgba(30,41,59,0.95);color:white;padding:1rem 2rem;border-radius:50px;box-shadow:0 10px 30px rgba(0,0,0,0.2);display:flex;align-items:center;gap:0.75rem;z-index:10000;font-weight:500;opacity:0;transition:all 0.4s cubic-bezier(0.175,0.885,0.32,1.275);pointer-events:none}.toast-notification.visible{transform:translateX(-50%) translateY(0);opacity:1;pointer-events:all}.toast-notification.is-error{background:#ef4444}.toast-notification.is-success{background:#10b981}.quiz-header{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:2rem;padding-bottom:1rem;border-bottom:2px solid var(--border);position:sticky;top:0;z-index:50;background:var(--bg);padding-top:1rem}.score-tracker{display:flex;gap:1rem}.score-correct,.score-incorrect{padding:0.5rem 1rem;border-radius:8px;font-weight:600}.score-correct{background:rgba(5,150,105,0.15);color:var(--success)}.score-incorrect{background:rgba(220,38,38,0.15);color:var(--error)}.quiz-static-ad,.quiz-ad-slot{margin:1.5rem 0;animation:fadeIn 0.3s ease}.ad-timer-bar{background:var(--bg-alt);border-radius:8px;padding:1rem 1.5rem;margin-bottom:1rem;text-align:center}.ad-timer-bar span{font-weight:500;color:var(--text-muted)}.ad-timer-bar #ad-countdown{display:inline-block;background:var(--primary);color:white;width:28px;height:28px;line-height:28px;border-radius:50%;font-weight:700;margin:0 0.25rem}.timer-progress{height:6px;background:var(--border);border-radius:3px;margin-top:0.75rem;overflow:hidden}.timer-fill{height:100%;background:linear-gradient(90deg,var(--primary),var(--turquoise-surf));border-radius:3px;width:100%}.quiz-summary{text-align:center;padding:2.5rem;max-width:700px;margin:0 auto}.summary-header{margin-bottom:2rem}.summary-emoji{font-size:4rem;display:block;margin-bottom:1rem}.summary-header h2{font-size:2rem;margin:0 0 0.5rem;color:var(--text)}.grade{font-size:1.25rem;color:var(--success);font-weight:600;margin:0}.summary-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-bottom:2rem}.stat-card{background:var(--bg-alt);border-radius:12px;padding:1.5rem 1rem}.stat-number{display:block;font-size:2.5rem;font-weight:700;line-height:1;margin-bottom:0.5rem}.stat-label{font-size:0.875rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:0.5px}.stat-correct .stat-number{color:var(--success)}.stat-incorrect .stat-number{color:var(--error)}.stat-percentage .stat-number{color:var(--primary)}.summary-breakdown{text-align:left;margin-bottom:2rem;padding:1.5rem;background:var(--bg-alt);border-radius:12px}.summary-breakdown h3{margin:0 0 1rem;font-size:1rem;color:var(--text)}.results-list{list-style:none;padding:0;margin:0;max-height:400px;overflow-y:auto}.result-item{border-bottom:1px solid var(--border);padding:1.25rem 0}.result-item:last-child{border-bottom:none}.result-summary-line{display:flex;align-items:center;gap:1rem;position:relative}.result-icon{flex-shrink:0;width:28px;height:28px;display:flex;align-items:center;justify-content:center;border-radius:50%;font-size:0.85rem;font-weight:700;color:white}.result-correct .result-icon{background:var(--success)}.result-incorrect .result-icon{background:var(--error)}.result-text{flex:1;font-size:0.95rem;color:var(--text);line-height:1.4}.toggle-explanation-btn{background:var(--bg-alt);border:1px solid var(--border);color:var(--text-muted);padding:0.35rem 0.75rem;border-radius:6px;font-size:0.75rem;font-weight:600;cursor:pointer;transition:all 0.2s ease}.toggle-explanation-btn:hover{background:var(--border);color:var(--text)}.result-details{display:none;padding:1rem 1rem 0.5rem 2.75rem;font-size:0.9rem;color:var(--text-muted);line-height:1.6}.result-item.active .result-details{display:block}.result-explanation{margin-top:1rem;padding-top:1rem;border-top:1px dashed var(--border)}.summary-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap;margin-top:2rem}.btn-secondary{background:transparent;border:2px solid var(--primary);color:var(--primary)}.btn-secondary:hover{background:var(--primary);color:white}.option-btn{width:100%;text-align:left;padding:0.7rem 1.1rem;background:white;border:2px solid var(--border);border-radius:12px;margin-bottom:0;font-size:1rem;font-weight:500;color:var(--text);cursor:pointer;transition:all 0.2s ease}.option-btn:hover:not(:disabled){background:var(--bg-alt);border-color:var(--turquoise-surf);transform:translateX(4px)}.option-btn.selected{background:var(--primary) !important;color:white !important;border-color:var(--primary) !important;box-shadow:0 4px 12px rgba(0,119,182,0.2)}.option-btn:disabled{cursor:not-allowed;opacity:0.7;filter:grayscale(0.5)}.option-btn.correct{background:var(--success) !important;color:white !important;border-color:var(--success) !important}.option-btn.incorrect{background:var(--error) !important;color:white !important;border-color:var(--error) !important}.explanation{background:var(--bg-alt);border-radius:12px;padding:1rem;margin-top:0.875rem;border-left:4px solid var(--turquoise-surf)}@media (max-width:600px){.summary-stats{grid-template-columns:1fr}.stat-number{font-size:2rem}}:disabled,.btn:disabled,[aria-disabled="true"]{opacity:0.6 !important;cursor:not-allowed !important;pointer-events:none;filter:grayscale(0.8)}::selection{background:var(--turquoise-surf);color:white;text-shadow:0 1px 2px rgba(0,0,0,0.1)}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:var(--bg)}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:5px;border:2px solid var(--bg)}::-webkit-scrollbar-thumb:hover{background:var(--bright-teal-blue)}html{scroll-behavior:smooth}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--bright-teal-blue);box-shadow:0 0 0 3px rgba(0,119,182,0.2)}input:-webkit-autofill,input:-webkit-autofill:hover,input:-webkit-autofill:focus,input:-webkit-autofill:active{-webkit-box-shadow:0 0 0 30px white inset !important;-webkit-text-fill-color:var(--text) !important;transition:background-color 5000s ease-in-out 0s}button:active:not(:disabled),.btn:active:not(:disabled),a.btn:active:not(:disabled){transform:translateY(1px) scale(0.98)}.topic-top-ad{margin:1.5rem auto 2.5rem;max-width:900px;text-align:center}.ad-label{font-size:10px;color:var(--slate-muted);text-transform:uppercase;letter-spacing:0.1em;margin-bottom:6px;text-align:center;font-weight:600}.sticky-sidebar-ad{position:sticky;top:80px;z-index:10;margin-top:1.5rem}.sidebar-ad{margin-bottom:2rem}.ad-container-wrapper{position:relative;margin-bottom:2.5rem}.ad-unit{display:flex;justify-content:center;align-items:center;overflow:hidden}.study-guides-header{background:radial-gradient(ellipse at 20% 80%,rgba(0,180,216,0.12) 0%,transparent 50%),radial-gradient(ellipse at 80% 20%,rgba(144,224,239,0.1) 0%,transparent 50%),linear-gradient(160deg,#03045e 0%,#023e8a 40%,#0077b6 100%);padding:3rem 0 3.5rem;color:#fff;text-align:center;position:relative;overflow:hidden}.study-guides-header::before{content:'';position:absolute;top:-40%;right:-15%;width:50%;height:180%;background:radial-gradient(circle,rgba(144,224,239,0.08) 0%,transparent 60%);animation:heroGlow 10s ease-in-out infinite alternate;pointer-events:none}.study-guides-header h1{font-size:2.8rem;font-weight:800;letter-spacing:-1.5px;margin:0.75rem 0 0.5rem;line-height:1.15;color:#fff}.study-guides-header .subtitle{font-size:1.1rem;color:rgba(255,255,255,0.75);max-width:650px;margin:0 auto 1.75rem;line-height:1.7}.study-guides-header .subtitle a{color:var(--frosted-blue);text-decoration:underline;text-underline-offset:2px}.guides-badge{display:inline-block;background:rgba(144,224,239,0.15);color:var(--frosted-blue);padding:0.35rem 1rem;border-radius:100px;font-size:0.78rem;font-weight:700;text-transform:uppercase;letter-spacing:1px;border:1px solid rgba(144,224,239,0.2)}.curriculum-stats{display:flex;flex-wrap:wrap;justify-content:center;gap:0.6rem;margin-bottom:2rem}.stat-chip{background:rgba(255,255,255,0.1);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,0.12);color:rgba(255,255,255,0.9);padding:0.45rem 1rem;border-radius:100px;font-size:0.82rem;font-weight:600;white-space:nowrap;transition:all 0.25s ease}.stat-chip:hover{background:rgba(255,255,255,0.18);transform:translateY(-1px)}.guides-search-container{max-width:480px;margin:0 auto 1.5rem}.search-input-wrapper{position:relative;display:flex;align-items:center}.search-icon{position:absolute;left:1rem;color:rgba(255,255,255,0.45);pointer-events:none;flex-shrink:0}.guides-search-input{width:100%;padding:0.75rem 1.25rem 0.75rem 2.75rem;border-radius:12px;border:1px solid rgba(255,255,255,0.2);background:rgba(255,255,255,0.1);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);color:white;font-size:0.95rem;font-weight:500;transition:all 0.25s ease}.guides-search-input::placeholder{color:rgba(255,255,255,0.5)}.guides-search-input:focus{outline:none;background:rgba(255,255,255,0.15);border-color:rgba(144,224,239,0.5);box-shadow:0 0 0 3px rgba(0,180,216,0.2)}.category-filters{display:flex;flex-wrap:wrap;justify-content:center;gap:0.4rem}.filter-btn{padding:0.45rem 1rem;border-radius:100px;border:1px solid rgba(255,255,255,0.2);background:transparent;color:rgba(255,255,255,0.7);font-size:0.82rem;font-weight:600;cursor:pointer;transition:all 0.25s ease;white-space:nowrap}.filter-btn:hover{background:rgba(255,255,255,0.1);color:white;border-color:rgba(255,255,255,0.3)}.filter-btn.active{background:rgba(255,255,255,0.95);color:var(--deep-twilight);border-color:transparent;box-shadow:0 2px 8px rgba(0,0,0,0.15)}@media (max-width:768px){.study-guides-header{padding:2rem 0 2.5rem}.study-guides-header h1{font-size:2rem}.study-guides-header .subtitle{font-size:0.95rem}.curriculum-stats{gap:0.4rem}.stat-chip{font-size:0.75rem;padding:0.35rem 0.75rem}}.category-hero{background:radial-gradient(ellipse at 30% 70%,rgba(0,180,216,0.1) 0%,transparent 50%),linear-gradient(160deg,#03045e 0%,#023e8a 50%,#0077b6 100%);padding:3rem 0 3.5rem;color:#fff;position:relative;overflow:hidden}.category-hero::before{content:'';position:absolute;top:-30%;right:-10%;width:45%;height:160%;background:radial-gradient(circle,rgba(144,224,239,0.06) 0%,transparent 60%);pointer-events:none}.category-hero .hero-text{position:relative;z-index:1}.category-hero .hero-badge{background:rgba(144,224,239,0.15);color:var(--frosted-blue);padding:0.35rem 1rem;border-radius:100px;font-size:0.78rem;font-weight:700;text-transform:uppercase;letter-spacing:1px;border:1px solid rgba(144,224,239,0.2);display:inline-block;margin-bottom:0.75rem}.category-hero h1{font-size:2.6rem;font-weight:800;letter-spacing:-1.5px;margin:0 0 0.75rem;color:#fff;line-height:1.15}.category-subtitle{max-width:600px}.category-subtitle p,.category-subtitle .subtitle{font-size:1.05rem;color:rgba(255,255,255,0.7);line-height:1.7;margin:0}.category-subtitle a{color:var(--frosted-blue);text-decoration:underline;text-underline-offset:2px}.category-subtitle strong{color:rgba(255,255,255,0.9)}.btn-glass{display:inline-flex;align-items:center;gap:0.5rem;padding:0.65rem 1.5rem;border-radius:12px;background:rgba(255,255,255,0.12);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,0.2);color:white;text-decoration:none;font-weight:600;font-size:0.92rem;transition:all 0.25s ease;margin-top:1.25rem}.btn-glass:hover{background:rgba(255,255,255,0.2);transform:translateY(-1px);box-shadow:0 4px 16px rgba(0,0,0,0.15)}.btn-glass .icon{font-size:1.1rem}@media (max-width:768px){.category-hero{padding:2rem 0 2.5rem}.category-hero h1{font-size:1.9rem}}.breadcrumb-nav{margin-bottom:1rem}.breadcrumb{list-style:none;padding:0;margin:0;display:flex;align-items:center;gap:0.25rem;font-size:0.82rem}.breadcrumb li{display:flex;align-items:center}.breadcrumb li+li::before{content:'›';margin-right:0.4rem;color:rgba(255,255,255,0.4);font-size:1rem}.breadcrumb a{color:rgba(255,255,255,0.6);text-decoration:none;font-weight:500;transition:color 0.2s}.breadcrumb a:hover{color:white}.breadcrumb .active{color:rgba(255,255,255,0.9);font-weight:600}.category-section{margin-bottom:2.5rem}.category-info-block{margin:0;padding:10px 25px 20px 25px}.category-info-block h2{font-size:1.6rem;font-weight:800;color:var(--deep-twilight);letter-spacing:-0.5px;margin:0 0 0.35rem}.category-info-block p{color:var(--text-muted);font-size:0.95rem;line-height:1.65;margin:0}.category-accordion{display:flex;align-items:center;gap:0.75rem;width:100%;padding:0.85rem 1.25rem;border-radius:0;border-top:1px solid var(--border);border-bottom:1px solid var(--border);border-left:none;border-right:none;background:linear-gradient(135deg,rgba(202,240,248,0.3) 0%,rgba(255,255,255,0.8) 100%);cursor:pointer;font-size:0.92rem;font-weight:600;color:var(--deep-twilight);transition:all 0.25s ease}.category-accordion:hover{background:linear-gradient(135deg,rgba(202,240,248,0.5) 0%,rgba(255,255,255,1) 100%);border-color:var(--turquoise-surf);box-shadow:0 2px 12px rgba(0,119,182,0.08)}.category-icon{font-size:1.15rem}.category-name{flex:1;text-align:left}.accordion-arrow{font-size:0.7rem;color:var(--bright-teal-blue);transition:transform 0.35s cubic-bezier(0.4,0,0.2,1)}.category-section.expanded .accordion-arrow{transform:rotate(180deg)}.category-content{max-height:0;overflow:hidden;transition:max-height 0.45s cubic-bezier(0.4,0,0.2,1),opacity 0.3s ease;opacity:0}.category-section.expanded .category-content{max-height:3000px;opacity:1}.topic-grid{display:grid;grid-template-columns:repeat(3,minmax(240px,1fr));gap:0.75rem}.topic-card{display:flex;align-items:center;gap:0.75rem;padding:0.95rem 1.15rem;background:linear-gradient(135deg,#f0f9ff 0%,#e0f2fe 100%);border:1px solid rgba(144,224,239,0.3);border-left:3px solid var(--turquoise-surf);border-radius:10px;text-decoration:none;color:var(--deep-twilight);transition:all 0.25s cubic-bezier(0.4,0,0.2,1);position:relative}.topic-card:hover{background:linear-gradient(135deg,#e0f2fe 0%,#caf0f8 100%);border-left-color:var(--bright-teal-blue);box-shadow:0 4px 16px rgba(0,119,182,0.12);transform:translateX(3px)}.topic-card h4{font-size:0.95rem;font-weight:600;margin:0;line-height:1.4;color:var(--deep-twilight);flex:1}.topic-card:hover h4{color:var(--bright-teal-blue)}.topic-card small,.topic-card .read-more{display:none}.topic-card:hover small,.topic-card:hover .read-more{display:none}.topic-grid-category{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1rem}.topic-grid-category .topic-card{flex-direction:row;align-items:flex-start;gap:1rem;padding:1.5rem}.topic-grid-category .card-icon{width:44px;height:44px;flex-shrink:0;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,rgba(202,240,248,0.6),rgba(144,224,239,0.3));border-radius:10px;font-size:1.2rem}.topic-grid-category .card-content{flex:1;min-width:0}.topic-grid-category .card-content h3{font-size:1rem;font-weight:700;margin:0 0 0.4rem;color:var(--deep-twilight);line-height:1.35}.topic-grid-category .card-content p{font-size:0.85rem;color:var(--text-muted);line-height:1.55;margin:0 0 0.5rem;display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.topic-grid-category .read-more{font-size:0.8rem;font-weight:700;color:var(--bright-teal-blue);display:inline-block}@media (max-width:640px){.topic-grid{grid-template-columns:1fr}.topic-grid-category{grid-template-columns:1fr}.topic-grid-category .topic-card{padding:1.25rem}}.cta-banner{background:linear-gradient(135deg,var(--deep-twilight) 0%,#023e8a 60%,var(--bright-teal-blue) 100%);color:white;text-align:center;padding:3.5rem 2rem;border-radius:20px;position:relative;overflow:hidden}.cta-banner::before{content:'';position:absolute;top:-50%;right:-20%;width:50%;height:200%;background:radial-gradient(circle,rgba(0,180,216,0.12) 0%,transparent 55%);pointer-events:none}.cta-banner h2{font-size:2rem;font-weight:800;margin:0 0 0.75rem;color:#fff;position:relative;z-index:1}.cta-banner p{font-size:1.1rem;color:rgba(255,255,255,0.8);margin:0 0 2rem;position:relative;z-index:1}.cta-banner .btn-white{position:relative;z-index:1;background:white;color:var(--deep-twilight);font-weight:700;padding:0.85rem 2rem;border-radius:12px;text-decoration:none;display:inline-flex;align-items:center;gap:0.5rem;font-size:1rem;transition:all 0.25s ease;box-shadow:0 4px 16px rgba(0,0,0,0.15)}.cta-banner .btn-white:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,0.2)}@media (max-width:768px){.cta-banner{padding:2.5rem 1.5rem;border-radius:16px}.cta-banner h2{font-size:1.5rem}}.article-grid{max-width:900px;margin:0 auto}.article-grid h2{font-size:1.75rem;font-weight:800;color:var(--deep-twilight);margin:0 0 1.25rem;letter-spacing:-0.5px}.article-grid p{font-size:1rem;color:var(--text-muted);line-height:1.8;margin:0 0 1.25rem}.article-grid p:last-child{margin-bottom:0}.bg-light{background:rgba(202,240,248,0.15)}.guides-intro-section{border-bottom:1px solid var(--border)}.grid-ad-break{grid-column:1 / -1;margin:0.75rem 0}.no-results-message{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem;padding:3rem 1.5rem;text-align:center;color:var(--text-muted)}.no-results-message p{font-size:1.05rem;font-weight:500;margin:0}.btn-clear-search{padding:0.5rem 1.25rem;border-radius:8px;border:1px solid var(--border);background:white;color:var(--bright-teal-blue);font-size:0.85rem;font-weight:600;cursor:pointer;transition:all 0.2s ease}.btn-clear-search:hover{background:var(--bg-alt);border-color:var(--turquoise-surf)}.skip-to-content{position:absolute;top:-100%;left:1rem;padding:0.75rem 1.5rem;background:var(--bright-teal-blue);color:#fff;font-weight:700;border-radius:0 0 8px 8px;z-index:9999;text-decoration:none;transition:top 0.2s ease}.skip-to-content:focus{top:0}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.nav-link.active{color:var(--bright-teal-blue);position:relative}.nav-link.active::after{content:'';position:absolute;bottom:-2px;left:0.75rem;right:0.75rem;height:2px;background:var(--bright-teal-blue);border-radius:2px}.exam-info-links{margin:1rem 0 2rem;display:flex;gap:1rem;justify-content:center;flex-wrap:wrap;position:relative;z-index:10}.quiz-helpful-links{margin-top:1rem;font-size:0.9rem;color:#64748b}.quiz-helpful-links a{margin-left:0.5rem;color:var(--bright-teal-blue);text-decoration:underline}.next-question{margin-top:1rem}.score-tracker{display:none}.quiz-ad-slot{display:none}.category-topics-container{padding-top:2rem;padding-bottom:4rem}.exam-seo-content{background:#fff;border-top:1px solid var(--border);margin-top:2rem;line-height:1.8;color:var(--text-muted)}.exam-seo-content h2{color:var(--text);margin-bottom:1.5rem}.exam-seo-content p{margin-bottom:1.25rem;font-size:1.05rem}.scroll-to-top{position:fixed;bottom:2rem;right:2rem;width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,var(--bright-teal-blue),var(--turquoise-surf));color:white;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 16px rgba(0,119,182,0.3);opacity:0;visibility:hidden;transform:translateY(12px);transition:all 0.35s cubic-bezier(0.4,0,0.2,1);z-index:999}.scroll-to-top.visible{opacity:1;visibility:visible;transform:translateY(0)}.scroll-to-top:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(0,119,182,0.4)}.topic-mini-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:1.5rem;margin-top:3rem}.topic-mini-label{font-weight:600}.btn-hero-outline{background:rgba(255,255,255,0.1);color:#fff;border:2px solid rgba(255,255,255,0.3);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);transition:background 0.2s,border-color 0.2s}.btn-hero-outline:hover{background:rgba(255,255,255,0.2);border-color:rgba(255,255,255,0.6);color:#fff}.topic-mini-card{background:white;border:1px solid rgba(0,0,0,0.05);padding:1.5rem;border-radius:12px;text-decoration:none;color:#334155;transition:all 0.2s ease;display:flex;align-items:center;gap:1rem;box-shadow:0 4px 6px -1px rgba(0,0,0,0.05)}.topic-mini-card:hover{transform:translateY(-3px);box-shadow:0 10px 15px -3px rgba(0,0,0,0.1);color:#0077b6;border-color:#0077b6}.topic-mini-icon{font-size:1.5rem;background:#f0f9ff;width:45px;height:45px;display:flex;align-items:center;justify-content:center;border-radius:10px;flex-shrink:0}.cookie-consent{position:fixed;bottom:0;left:0;right:0;background:linear-gradient(135deg,#1e293b 0%,#0f172a 100%);color:white;padding:1rem 1.5rem;z-index:10000;box-shadow:0 -4px 20px rgba(0,0,0,0.3);transform:translateY(100%);transition:transform 0.4s ease}.cookie-consent.visible{transform:translateY(0)}.cookie-consent-content{max-width:1200px;margin:0 auto;display:flex;align-items:center;gap:1.25rem;flex-wrap:wrap}.cookie-icon{font-size:2rem}.cookie-text{flex:1;min-width:250px}.cookie-text strong{display:block;margin-bottom:0.25rem;font-size:1rem}.cookie-text p{margin:0;font-size:0.875rem;opacity:0.9;line-height:1.5}.cookie-text a{color:#60a5fa;text-decoration:underline}.cookie-accept-btn{padding:0.75rem 2rem;background:linear-gradient(135deg,#0077b6 0%,#00b4d8 100%);color:white;border:none;border-radius:8px;font-weight:600;font-size:0.95rem;cursor:pointer;transition:all 0.2s;white-space:nowrap}.cookie-accept-btn:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,119,182,0.4)}@media (max-width:600px){.cookie-consent-content{flex-direction:column;text-align:center}.cookie-accept-btn{width:100%}}.feature-card-link:hover div{transform:translateY(-5px);box-shadow:0 10px 15px -3px rgba(0,0,0,0.1);background:#fff;border-color:#cbd5e1}.quiz-header-top{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:0.75rem;width:100%;margin-bottom:0.75rem}.quiz-mode-badge{font-size:0.8rem;font-weight:700;text-transform:uppercase;letter-spacing:0.5px;background:rgba(0,119,182,0.1);color:var(--primary);padding:0.3rem 0.85rem;border-radius:100px;white-space:nowrap}.quiz-header-controls{display:flex;align-items:center;gap:1.25rem;flex-wrap:wrap;width:100%}.exam-timer{font-size:1.35rem;font-weight:700;font-variant-numeric:tabular-nums;color:var(--primary);background:rgba(0,119,182,0.08);padding:0.4rem 1rem;border-radius:8px;letter-spacing:1px;min-width:80px;text-align:center;transition:background 0.3s,color 0.3s}.exam-timer.timer-warning{background:rgba(234,179,8,0.12);color:#b45309}.exam-timer.timer-danger{background:rgba(220,38,38,0.12);color:var(--error);animation:pulse-timer 1s ease-in-out infinite}@keyframes pulse-timer{0%,100%{opacity:1}50%{opacity:0.6}}.summary-passed{color:var(--success)}.summary-failed{color:var(--error)}.summary-complexity{text-align:left;margin-bottom:1.5rem;padding:1.25rem 1.5rem;background:var(--bg-alt);border-radius:12px}.summary-complexity h3{margin:0 0 1rem;font-size:1rem}.breakdown-row{display:flex;align-items:center;gap:0.75rem;margin-bottom:0.75rem}.breakdown-label{font-size:0.85rem;font-weight:600;width:90px;flex-shrink:0;color:var(--text)}.breakdown-bar-wrap{flex:1;height:10px;background:var(--border);border-radius:5px;overflow:hidden}.breakdown-bar{height:100%;border-radius:5px;transition:width 0.6s ease}.breakdown-pct{font-size:0.8rem;color:var(--text-muted);width:90px;text-align:right;flex-shrink:0}.study-weak-areas{text-align:left;margin-bottom:1.5rem;padding:1.25rem 1.5rem;background:#fff8ed;border:1px solid #fcd34d;border-radius:12px}.study-weak-areas h3{margin:0 0 0.75rem;font-size:1rem;color:#92400e}.weak-area-links{display:flex;flex-wrap:wrap;gap:0.5rem}.weak-area-btn{display:inline-block;padding:0.4rem 0.9rem;background:white;border:1px solid #fcd34d;border-radius:8px;font-size:0.85rem;font-weight:600;color:#92400e;text-decoration:none;transition:background 0.2s}.weak-area-btn:hover{background:#fef3c7}.testimonials-section{background:var(--bg-alt);padding:4rem 0}.testimonials-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem;margin-top:2.5rem}.testimonial-card{background:white;border-radius:16px;padding:1.75rem;box-shadow:0 2px 12px rgba(0,0,0,0.06);position:relative}.testimonial-stars{color:#f59e0b;font-size:1rem;margin-bottom:0.75rem;letter-spacing:2px}.testimonial-quote{font-size:0.95rem;line-height:1.7;color:var(--text);margin:0 0 1.25rem;font-style:italic}.testimonial-author{display:flex;align-items:center;gap:0.75rem}.testimonial-avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--turquoise-surf));display:flex;align-items:center;justify-content:center;font-weight:700;color:white;font-size:1rem;flex-shrink:0}.testimonial-name{font-weight:700;font-size:0.9rem;color:var(--text);margin:0}.testimonial-meta{font-size:0.8rem;color:var(--text-muted);margin:0}.testimonial-passed-badge{display:inline-block;background:rgba(5,150,105,0.12);color:var(--success);font-size:0.72rem;font-weight:700;padding:0.15rem 0.55rem;border-radius:100px;margin-top:0.25rem}.email-capture-section{background:linear-gradient(135deg,var(--deep-twilight) 0%,#023e8a 100%);padding:4rem 0;text-align:center;color:white}.email-capture-section h2{font-size:2rem;font-weight:800;margin:0 0 0.75rem;color:white}.email-capture-section p{font-size:1.05rem;color:rgba(255,255,255,0.8);margin:0 0 2rem;max-width:520px;margin-left:auto;margin-right:auto}.email-capture-form{display:flex;gap:0.5rem;max-width:480px;margin:0 auto 1rem;flex-wrap:wrap;justify-content:center}.email-capture-form input[type="email"]{flex:1;min-width:240px;padding:0.85rem 1.25rem;border-radius:10px;border:none;font-size:1rem;outline:none}.email-capture-form button{padding:0.85rem 1.75rem;background:var(--turquoise-surf);color:white;border:none;border-radius:10px;font-size:1rem;font-weight:700;cursor:pointer;transition:background 0.2s;white-space:nowrap}.email-capture-form button:hover{background:var(--frosted-blue);color:var(--deep-twilight)}.email-capture-disclaimer{font-size:0.78rem;color:rgba(255,255,255,0.5);margin:0}.email-capture-msg{display:none;margin-top:1rem;padding:0.75rem 1.5rem;border-radius:8px;font-weight:600;font-size:0.95rem}.email-capture-msg.success{background:rgba(5,150,105,0.2);color:#6ee7b7;display:block}.email-capture-msg.error{background:rgba(220,38,38,0.2);color:#fca5a5;display:block}.domain-blueprint{background:white;border-radius:16px;overflow:hidden;box-shadow:0 2px 12px rgba(0,0,0,0.06);margin-bottom:3rem}.domain-blueprint-header{background:linear-gradient(135deg,var(--deep-twilight),#023e8a);color:white;padding:1.25rem 1.75rem;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:0.5rem}.domain-blueprint-header h2{margin:0;font-size:1.1rem;font-weight:700;color:white}.domain-blueprint-header span{font-size:0.82rem;color:rgba(255,255,255,0.7)}.domain-table{width:100%;border-collapse:collapse;font-size:0.9rem}.domain-table th{background:var(--bg-alt);padding:0.75rem 1.25rem;text-align:left;font-size:0.78rem;text-transform:uppercase;letter-spacing:0.5px;color:var(--text-muted);font-weight:600}.domain-table td{padding:0.9rem 1.25rem;border-bottom:1px solid var(--border);color:var(--text)}.domain-table tr:last-child td{border-bottom:none}.domain-table tr:hover td{background:var(--bg-alt)}.domain-weight-bar{display:flex;align-items:center;gap:0.5rem}.domain-bar{height:8px;background:linear-gradient(90deg,var(--primary),var(--turquoise-surf));border-radius:4px;flex-shrink:0}.domain-pct-text{font-size:0.8rem;color:var(--text-muted);white-space:nowrap}.domain-tag{display:inline-block;font-size:0.7rem;font-weight:700;padding:0.15rem 0.5rem;border-radius:4px;background:rgba(0,119,182,0.1);color:var(--primary);text-transform:uppercase;letter-spacing:0.3px}.quiz-mode-selector{display:flex;gap:0.5rem;margin-top:0.75rem;flex-wrap:wrap}.quiz-mode-link{display:inline-flex;align-items:center;gap:0.3rem;padding:0.35rem 0.8rem;border-radius:6px;font-size:0.78rem;font-weight:600;text-decoration:none;border:1.5px solid var(--border);color:var(--text-muted);transition:all 0.2s;white-space:nowrap}.quiz-mode-link:hover{border-color:var(--primary);color:var(--primary);background:rgba(0,119,182,0.05)}.quiz-mode-link.mode-full{background:var(--primary);color:white;border-color:var(--primary)}.quiz-mode-link.mode-full:hover{background:var(--deep-twilight);border-color:var(--deep-twilight)}.exam-card-hidden{display:none}.load-more-wrap{text-align:center;margin:2.5rem 0 1rem}.btn-outline{display:inline-flex;align-items:center;gap:0.5rem;padding:0.85rem 2rem;border:2px solid var(--primary);border-radius:10px;color:var(--primary);background:transparent;font-weight:600;font-size:1rem;cursor:pointer;transition:background 0.2s,color 0.2s;text-decoration:none}.btn-outline:hover{background:var(--primary);color:#fff}.option-btn{display:flex;align-items:flex-start;gap:0.75rem;text-align:left}.option-letter{flex-shrink:0;width:28px;height:28px;border-radius:50%;background:var(--light-cyan);color:var(--bright-teal-blue);font-weight:800;font-size:0.85rem;display:flex;align-items:center;justify-content:center;transition:background 0.2s,color 0.2s;margin-top:1px}.option-btn:hover .option-letter,.option-btn:focus .option-letter{background:var(--bright-teal-blue);color:#fff}.option-btn.correct .option-letter{background:#10b981;color:#fff}.option-btn.incorrect .option-letter{background:#ef4444;color:#fff}.option-text{flex:1}.btn-untimed{background:transparent;border:1px solid rgba(255,255,255,0.35);color:#fff;border-radius:8px;padding:0.3rem 0.75rem;font-size:0.8rem;font-weight:600;cursor:pointer;white-space:nowrap;transition:background 0.2s}.btn-untimed:hover{background:rgba(255,255,255,0.1)}.btn-untimed.active{background:rgba(255,255,255,0.15);border-color:rgba(255,255,255,0.6)}.resume-banner{background:var(--light-cyan);border:1px solid var(--frosted-blue);border-radius:12px;padding:1rem 1.25rem;margin-bottom:1rem}.resume-banner-inner{display:flex;align-items:center;gap:1rem;flex-wrap:wrap}.resume-banner-icon{font-size:1.5rem;flex-shrink:0}.resume-banner-text{flex:1;display:flex;flex-direction:column;gap:0.1rem;font-size:0.95rem}.resume-banner-text strong{color:var(--deep-twilight)}.resume-banner-text span{color:var(--text-muted,#64748b);font-size:0.85rem}.resume-banner-actions{display:flex;gap:0.5rem;flex-shrink:0}.btn-sm{padding:0.4rem 1rem;font-size:0.85rem;border-radius:8px}.btn-ghost{background:transparent;border:1px solid var(--border,#ccc);color:var(--text);border-radius:8px;cursor:pointer;font-weight:600;transition:background 0.2s}.btn-ghost:hover{background:var(--border,#eee)}.btn-share{background:#1da1f2;color:#fff;border:none;border-radius:10px;padding:0.75rem 1.5rem;font-weight:700;text-decoration:none;display:inline-flex;align-items:center;gap:0.5rem;cursor:pointer;transition:background 0.2s}.btn-share:hover{background:#0c85d0;color:#fff}.btn-print{background:transparent;border:2px solid var(--border,#ccc);color:var(--text);border-radius:10px;padding:0.75rem 1.5rem;font-weight:700;cursor:pointer;transition:border-color 0.2s,color 0.2s}.btn-print:hover{border-color:var(--primary);color:var(--primary)}.weak-areas-hint{font-size:0.875rem;color:var(--text-muted,#64748b);margin-bottom:0.75rem}.quiz-stats-dashboard{background:linear-gradient(135deg,var(--deep-twilight),#023e8a);border-radius:20px;padding:2rem;color:#fff;margin-bottom:2rem}.quiz-stats-dashboard h3{margin:0 0 1.25rem;font-size:1.2rem;color:var(--frosted-blue)}.quiz-stats-row-dashboard{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin-bottom:1.25rem}.dashboard-stat{text-align:center;background:rgba(255,255,255,0.08);border-radius:12px;padding:1rem}.dashboard-stat-num{display:block;font-size:2rem;font-weight:800;color:var(--turquoise-surf)}.dashboard-stat-lbl{display:block;font-size:0.8rem;color:rgba(255,255,255,0.7);margin-top:0.25rem}.dashboard-history-link{font-size:0.85rem;color:var(--frosted-blue);text-align:center;display:block;margin-top:0.5rem;cursor:pointer;text-decoration:underline}@media (max-width:640px){.quiz-stats-row-dashboard{grid-template-columns:repeat(2,1fr)}}.exam-card-footer{display:flex;align-items:center;gap:0.75rem;margin-bottom:0.75rem;flex-wrap:wrap}.exam-meta{display:flex;align-items:center;gap:0.35rem;font-size:0.85rem;color:var(--text-muted,#6b7280)}.meta-icon{font-size:0.9rem}.exam-time-badge{font-size:0.78rem;font-weight:600;color:var(--text-muted,#6b7280);background:var(--bg-light,#f3f4f6);padding:0.2rem 0.5rem;border-radius:4px;white-space:nowrap}@media print{.site-header,.site-footer,.quiz-header-controls,.quiz-mode-badge,.summary-actions,.quiz-helpful-links,.quiz-static-ad,#quiz-ad-container,.cookie-consent,.scroll-to-top,.exam-timer,#untimed-toggle{display:none !important}.quiz-summary{box-shadow:none;border:1px solid #ccc}.results-list .result-details{display:block !important}}.quick-quiz-section{background:var(--bg-alt,#f8fafc)}.quick-quiz-widget{max-width:760px;margin:0 auto;background:#fff;border:1px solid var(--border,#e5e7eb);border-radius:12px;padding:2rem;box-shadow:0 2px 8px rgba(0,0,0,.06)}.quick-quiz-loading{text-align:center;padding:2rem 0;color:var(--text-muted,#6b7280)}.quick-quiz-spinner{width:40px;height:40px;margin:0 auto 1rem;border:3px solid var(--border,#e5e7eb);border-top-color:var(--primary,#0077b6);border-radius:50%;animation:qq-spin 0.8s linear infinite}@keyframes qq-spin{to{transform:rotate(360deg)}}.quick-quiz-progress{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.25rem;font-size:0.875rem;color:var(--text-muted,#6b7280)}.quick-quiz-score-badge{font-weight:600;color:var(--success,#10b981)}.qq-question-text{font-size:1.05rem;font-weight:600;line-height:1.5;margin-bottom:1.25rem;color:var(--text,#111827)}.qq-options{display:flex;flex-direction:column;gap:0.6rem;margin-bottom:1rem}.qq-option{display:flex;align-items:flex-start;gap:0.75rem;padding:0.75rem 1rem;background:#f9fafb;border:1.5px solid var(--border,#e5e7eb);border-radius:8px;cursor:pointer;text-align:left;font-size:0.95rem;transition:border-color 0.15s,background 0.15s}.qq-option:hover:not(:disabled){border-color:var(--primary,#0077b6);background:#eff6ff}.qq-option:disabled{cursor:default}.qq-option.qq-correct{border-color:var(--success,#10b981);background:#ecfdf5}.qq-option.qq-wrong{border-color:var(--danger,#ef4444);background:#fef2f2}.qq-letter{display:inline-flex;align-items:center;justify-content:center;width:1.6rem;height:1.6rem;flex-shrink:0;background:var(--primary,#0077b6);color:#fff;border-radius:50%;font-size:0.75rem;font-weight:700}.qq-option:disabled .qq-letter{background:var(--text-muted,#6b7280)}.qq-option.qq-correct .qq-letter{background:var(--success,#10b981)}.qq-option.qq-wrong .qq-letter{background:var(--danger,#ef4444)}.qq-explanation{margin:1rem 0;padding:1rem;background:#fffbeb;border-left:4px solid var(--warning,#f59e0b);border-radius:0 8px 8px 0;font-size:0.9rem;line-height:1.6}.btn-sm{padding:0.45rem 1rem;font-size:0.88rem}.quick-quiz-results{text-align:center;padding:1.5rem 0}.quick-quiz-score-circle{display:inline-flex;flex-direction:column;align-items:center;justify-content:center;width:100px;height:100px;border-radius:50%;border:5px solid var(--primary,#0077b6);margin:0 auto 1rem;font-size:2rem;font-weight:800;color:var(--primary,#0077b6)}.quick-quiz-score-circle small{font-size:0.7rem;font-weight:400;color:var(--text-muted,#6b7280)}.quick-quiz-result-msg{max-width:480px;margin:0 auto 1.5rem;color:var(--text-muted,#6b7280);font-size:0.95rem}.quick-quiz-result-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.domain-exam-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-top:1.5rem}@media (max-width:768px){.domain-exam-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:480px){.domain-exam-grid{grid-template-columns:1fr}}.domain-exam-card{display:flex;flex-direction:column;align-items:center;gap:0.4rem;padding:1.25rem 1rem;background:#fff;border:1.5px solid var(--border,#e5e7eb);border-radius:10px;text-align:center;text-decoration:none;color:var(--text,#111827);transition:border-color 0.15s,box-shadow 0.15s,transform 0.15s}.domain-exam-card:hover{border-color:var(--primary,#0077b6);box-shadow:0 4px 12px rgba(0,119,182,.12);transform:translateY(-2px);color:var(--primary,#0077b6)}.domain-exam-icon{font-size:1.75rem}.domain-exam-card strong{font-size:0.95rem}.domain-exam-card span{font-size:0.78rem;color:var(--text-muted,#6b7280)}.difficulty-entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;margin-top:1.5rem}.difficulty-entry-card{display:flex;flex-direction:column;align-items:center;text-align:center;padding:2rem 1.5rem;border-radius:12px;border:2px solid transparent;text-decoration:none;transition:transform 0.2s ease,box-shadow 0.2s ease;gap:0.4rem}.difficulty-entry-card:hover{transform:translateY(-4px);box-shadow:0 12px 32px rgba(0,0,0,0.12)}.difficulty-entry-icon{font-size:2.5rem;line-height:1;margin-bottom:0.4rem}.difficulty-entry-label{font-size:1.2rem;font-weight:700;color:inherit}.difficulty-entry-count{font-size:1.5rem;font-weight:800;color:inherit}.difficulty-entry-time{font-size:0.82rem;opacity:0.8;color:inherit}.difficulty-entry-cta{margin-top:0.8rem;font-size:0.9rem;font-weight:600;color:inherit;text-decoration:underline;text-underline-offset:3px}.difficulty-beginner{background:#ecfdf5;border-color:#10b981;color:#065f46}.difficulty-intermediate{background:#eff6ff;border-color:#3b82f6;color:#1e3a8a}.difficulty-advanced{background:#faf5ff;border-color:#8b5cf6;color:#4c1d95}@media (max-width:768px){.difficulty-entry-grid{grid-template-columns:1fr}}.print-exam-header{background:var(--primary,#0077b6);color:#fff;padding:2rem 0}.print-exam-header h1{color:#fff;margin-top:0.5rem}.print-exam-intro{opacity:0.9;margin-bottom:1rem}.print-exam-actions{display:flex;gap:1rem;flex-wrap:wrap;margin-bottom:1rem}.print-exam-note{font-size:0.85rem;opacity:0.85}.print-exam-body{padding-top:2rem}.print-question{margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:1px solid var(--border,#e5e7eb)}.print-q-text{font-size:0.95rem;line-height:1.5;margin-bottom:0.5rem}.print-q-choices{padding-left:1rem}.print-choice{font-size:0.9rem;margin:0.25rem 0;display:flex;gap:0.5rem}.print-letter{font-weight:600;min-width:1.2rem}.print-answer-key{margin-top:2rem;padding:1.5rem;background:var(--bg-light,#f8fafc);border-radius:8px}.print-answer-key h2{margin-top:0}.print-key-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(60px,1fr));gap:0.4rem;margin:1rem 0}.print-key-item{font-size:0.85rem}.print-key-note{font-size:0.85rem;color:var(--text-muted,#6b7280);margin-top:1rem}.print-doc-header{margin-bottom:1.5rem}.print-doc-header hr{border:none;border-top:2px solid #000;margin:0.75rem 0}.print-only{display:none}.no-print{display:block}@media print{header,footer,nav,.no-print,.breadcrumb-nav,.exam-info-links,.ad-container,.google-ad-wrapper,.stats-container,.email-capture-section,.testimonials-section,.cta-banner,#cookie-banner,.quiz-mode-selector,.hero-section,.section-padding,.btn-glass,.btn-emerald{display:none !important}.print-only{display:block !important}body{font-size:11pt;color:#000;background:#fff}.print-exam-page{display:block !important}.print-exam-body{padding:0}.print-question{page-break-inside:avoid;break-inside:avoid}.print-answer-key{page-break-before:always;break-before:always;background:#fff}a[href]:after{content:none !important}}.domain-intro-panel{background:#f8fafc;border:1px solid #e2e8f0;border-left:4px solid #6366f1;border-radius:8px;padding:1.5rem 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!important;width:1px;height:1px;overflow:hidden}.bcba-review-card{background:linear-gradient(135deg,#f0f9ff,#e0f2fe);border-radius:16px;padding:2rem;margin-bottom:2rem;border:1px solid #bae6fd}.bcba-review-inner{display:flex;align-items:flex-start;gap:1rem;flex-wrap:wrap}.bcba-review-icon{font-size:2.5rem;flex-shrink:0}.bcba-review-title{margin:0 0 0.5rem;font-size:1.25rem;color:var(--deep-twilight)}.bcba-review-lead{margin:0 0 0.75rem;color:var(--text)}.bcba-review-pills{display:flex;flex-wrap:wrap;gap:0.5rem}.bcba-review-pill{display:inline-flex;align-items:center;gap:0.35rem;background:#fff;border:1px solid #bae6fd;border-radius:8px;padding:0.35rem 0.75rem;font-size:0.82rem;font-weight:600;color:var(--primary)}.bcba-review-disclaimer{margin:0.75rem 0 0;font-size:0.82rem;color:#64748b}.error-page-card{max-width:800px;margin:0 auto;background:#fff;border-radius:16px;padding:3rem 2.5rem;box-shadow:0 10px 40px rgba(3,4,94,0.06);text-align:center}.error-page-title{font-size:2rem;margin:0 0 0.75rem;color:var(--deep-twilight)}.error-page-lead{color:#64748b;font-size:1.05rem;margin:0 0 2rem}.error-page-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1rem;margin-bottom:2rem}.error-page-tile{display:block;padding:1.25rem 1rem;background:#f8fafc;border:1px solid #e2e8f0;border-radius:10px;text-decoration:none;color:var(--deep-twilight);transition:transform 0.15s,box-shadow 0.15s}.error-page-tile:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(3,4,94,0.08)}.error-page-tile-label{display:block;font-weight:700;font-size:1.05rem}.error-page-tile-sub{display:block;font-size:0.85rem;color:#64748b;margin-top:0.25rem}.error-page-actions{display:flex;gap:1rem;justify-content:center;margin-top:1.5rem;flex-wrap:wrap}@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:0.01ms !important;animation-iteration-count:1 !important;transition-duration:0.01ms !important;scroll-behavior:auto !important}.reading-progress-bar,.sticky-cta,.confetti{transition:none !important;animation:none !important}}.stat-fresh{display:block;font-size:0.7rem;font-weight:600;color:#64748b;margin-top:0.25rem;letter-spacing:0.05em;text-transform:uppercase}.pwa-install-row{text-align:center;margin-top:1.5rem}.pwa-install-btn{display:inline-flex;align-items:center;gap:0.6rem;padding:0.75rem 1.5rem;background:var(--bright-teal-blue);color:#fff;border:none;border-radius:100px;font-weight:700;font-size:0.95rem;cursor:pointer;box-shadow:0 6px 20px rgba(0,119,182,0.3);transition:transform 0.15s,box-shadow 0.15s}.pwa-install-btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,119,182,0.4)}.pwa-install-btn[hidden]{display:none}.ccpa-link{margin-top:0.75rem;font-size:0.8rem}.ccpa-link a{color:var(--frosted-blue);text-decoration:underline}.ccpa-link a:hover{color:#fff}.share-btn.is-copied{color:var(--teal-main) !important}@media print{.site-header,.site-footer,.main-nav,.scroll-to-top,.cookie-consent,.sticky-cta,.sticky-sidebar-ad,.topic-top-ad,.sidebar-ad,.reading-progress-bar,[class*="ad-"],ins.adsbygoogle{display:none !important}body{background:#fff !important}a{color:#000 !important;text-decoration:underline !important}}:root{--theme-transition:background-color 0.25s ease,color 0.25s ease,border-color 0.25s ease;--dark-bg:#090d16;--dark-surface:#111827;--dark-card:#1f293d;--dark-card-hover:#26354d;--dark-border:#2d3748;--dark-text:#f8fafc;--dark-text-muted:#94a3b8;--dark-cyan:#38bdf8;--dark-input:#1e293b}[data-theme="dark"]{--bg:var(--dark-bg);--bg-card:var(--dark-surface);--text:var(--dark-text);--teal-dark:#f1f5f9;--teal-main:#38bdf8;--border:var(--dark-border);--frosted-blue:#0284c7;--light-cyan:#0f172a}[data-theme="dark"],[data-theme="dark"] body{background-color:var(--dark-bg) !important;background:var(--dark-bg) !important;color:var(--dark-text) !important}[data-theme="dark"] .site-header{background:rgba(17,24,39,0.85);box-shadow:0 4px 30px rgba(0,0,0,0.4);border-bottom:1px solid var(--dark-border)}[data-theme="dark"] .nav-link,[data-theme="dark"] .logo{color:#f1f5f9}[data-theme="dark"] .bg-light,[data-theme="dark"] .bg-alt{background-color:#0d1321 !important}[data-theme="dark"] .card,[data-theme="dark"] .topic-card,[data-theme="dark"] .exam-card,[data-theme="dark"] .stat-item,[data-theme="dark"] .step-card,[data-theme="dark"] .feature-item,[data-theme="dark"] .premium-glass-card,[data-theme="dark"] .sidebar-card,[data-theme="dark"] .stats-grid,[data-theme="dark"] .quiz-summary,[data-theme="dark"] .question-container,[data-theme="dark"] .quick-quiz-widget,[data-theme="dark"] .quick-quiz-body,[data-theme="dark"] .quick-quiz-results{background:var(--dark-surface) !important;color:var(--dark-text) !important;border-color:var(--dark-border) !important}[data-theme="dark"] .topic-card h4,[data-theme="dark"] .exam-card h3,[data-theme="dark"] 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!important;box-shadow:0 4px 16px rgba(0,0,0,0.5) !important}[data-theme="dark"] .btn-hero-outline{border-color:rgba(255,255,255,0.4) !important;color:#ffffff !important}[data-theme="dark"] .option-btn{background:var(--dark-surface) !important;border-color:var(--dark-border) !important;color:#f1f5f9 !important}[data-theme="dark"] .option-btn:hover:not([disabled]){background:var(--dark-card-hover) !important;border-color:#38bdf8 !important}[data-theme="dark"] .explanation{background:rgba(15,23,42,0.85) !important;border-left:4px solid #38bdf8 !important;color:#cbd5e1 !important}[data-theme="dark"] .explanation strong{color:#38bdf8 !important}[data-theme="dark"] .score-correct{background:rgba(16,185,129,0.2) !important;color:#34d399 !important}[data-theme="dark"] .score-incorrect{background:rgba(239,68,68,0.2) !important;color:#f87171 !important}[data-theme="dark"] input[type="text"],[data-theme="dark"] input[type="email"],[data-theme="dark"] input[type="search"]{background:var(--dark-input) !important;color:#f8fafc !important;border-color:var(--dark-border) !important}[data-theme="dark"] .megamenu{background:#111827 !important;border-color:var(--dark-border) !important;box-shadow:0 16px 48px rgba(0,0,0,0.7) !important}[data-theme="dark"] .megamenu-heading{border-bottom-color:var(--dark-border) !important;color:#38bdf8 !important}[data-theme="dark"] .megamenu-list li a,[data-theme="dark"] .megamenu-extra-link{color:#f1f5f9 !important}[data-theme="dark"] .megamenu-list li a:hover,[data-theme="dark"] .megamenu-extra-link:hover{background:#1e293b !important;color:#38bdf8 !important}[data-theme="dark"] .megamenu-extras{border-top-color:var(--dark-border) !important}[data-theme="dark"] .megamenu-exam-pill{background:#1a2234 !important;border-color:var(--dark-border) !important;color:#e2e8f0 !important}[data-theme="dark"] .megamenu-exam-pill:hover{background:#0284c7 !important;border-color:#0284c7 !important;color:#ffffff !important}[data-theme="dark"] .site-footer{background:#080c14 !important;border-top:1px solid var(--dark-border)}.theme-toggle-btn{background:transparent;border:1px solid rgba(0,119,182,0.25);border-radius:50%;width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;color:var(--teal-dark);transition:all 0.2s ease;padding:0;margin-left:0.5rem}.theme-toggle-btn:hover{background:rgba(0,119,182,0.1);border-color:var(--bright-teal-blue);transform:rotate(15deg)}[data-theme="dark"] .theme-toggle-btn{border-color:rgba(56,189,248,0.3);color:#38bdf8}[data-theme="dark"] .theme-toggle-btn:hover{background:rgba(56,189,248,0.15)}.aeo-definition-card{background:#ffffff;border:1px solid #e0f2fe;border-left:5px solid #0077b6;border-radius:14px;padding:1.5rem 1.75rem;margin-bottom:2rem;box-shadow:0 4px 20px rgba(0,119,182,0.06);position:relative;overflow:hidden}[data-theme="dark"] .aeo-definition-card{background:var(--dark-surface);border-color:var(--dark-border);border-left-color:#38bdf8;box-shadow:0 4px 20px rgba(0,0,0,0.3)}.aeo-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:0.75rem;flex-wrap:wrap;gap:0.5rem}.aeo-label{font-size:0.8rem;font-weight:800;text-transform:uppercase;letter-spacing:0.05em;color:#0077b6;display:inline-flex;align-items:center;gap:0.35rem}[data-theme="dark"] .aeo-label{color:#38bdf8}.aeo-badge{background:rgba(0,119,182,0.08);color:#0077b6;font-size:0.75rem;font-weight:700;padding:0.25rem 0.6rem;border-radius:6px}[data-theme="dark"] .aeo-badge{background:rgba(56,189,248,0.15);color:#38bdf8}.aeo-title{font-size:1.35rem !important;font-weight:800 !important;color:#03045e !important;margin:0 0 0.75rem 0 !important;line-height:1.3 !important}[data-theme="dark"] .aeo-title{color:#f8fafc !important}.aeo-body p{font-size:1.05rem;line-height:1.7;color:#1e293b;margin:0}[data-theme="dark"] .aeo-body p{color:#cbd5e1}.aeo-body p strong{color:#0077b6;font-weight:700}[data-theme="dark"] .aeo-body p strong{color:#38bdf8}.aeo-footer{display:flex;justify-content:space-between;align-items:center;margin-top:1rem;padding-top:0.85rem;border-top:1px dashed #e2e8f0;font-size:0.85rem;color:#64748b;flex-wrap:wrap;gap:0.75rem}[data-theme="dark"] .aeo-footer{border-top-color:var(--dark-border);color:var(--dark-text-muted)}.mastery-tracker-bar{background:rgba(255,255,255,0.95);border:1px solid #bae6fd;border-radius:12px;padding:1rem 1.25rem;margin:1.5rem auto;max-width:900px;box-shadow:0 4px 15px rgba(0,119,182,0.06)}[data-theme="dark"] .mastery-tracker-bar{background:var(--dark-surface);border-color:var(--dark-border);box-shadow:0 4px 15px rgba(0,0,0,0.2)}.mastery-tracker-info{display:flex;justify-content:space-between;align-items:center;margin-bottom:0.5rem;font-size:0.95rem;font-weight:700;color:var(--deep-twilight)}[data-theme="dark"] .mastery-tracker-info{color:#f1f5f9}.mastery-progress-track{width:100%;height:10px;background:#e2e8f0;border-radius:100px;overflow:hidden}[data-theme="dark"] .mastery-progress-track{background:#1e293b}.mastery-progress-fill{height:100%;background:linear-gradient(90deg,#10b981,#059669);border-radius:100px;transition:width 0.4s cubic-bezier(0.4,0,0.2,1)}.topic-card{position:relative;padding-right:2.8rem !important}.topic-mastery-check{position:absolute;right:12px;top:50%;transform:translateY(-50%);width:24px;height:24px;border-radius:6px;border:2px solid #cbd5e1;background:#ffffff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all 0.2s ease;font-size:0.85rem;color:transparent;padding:0;z-index:5}.topic-mastery-check:hover{border-color:#10b981;transform:translateY(-50%) scale(1.1)}.topic-card.is-mastered{border-color:#10b981 !important;background:rgba(16,185,129,0.04) !important}.topic-card.is-mastered .topic-mastery-check{background:#10b981;border-color:#10b981;color:#ffffff}.topic-mastery-pill{background:rgba(255,255,255,0.15);border:1px solid rgba(255,255,255,0.35);color:#ffffff;border-radius:100px;padding:0.35rem 0.9rem;font-size:0.85rem;font-weight:700;display:inline-flex;align-items:center;gap:0.4rem;cursor:pointer;transition:all 0.2s ease}.topic-mastery-pill:hover{background:rgba(255,255,255,0.25);transform:translateY(-1px)}.topic-mastery-pill.active{background:#10b981;border-color:#10b981;color:#ffffff}.topic-drill-card{background:#ffffff;border:1px solid #bae6fd;border-radius:16px;padding:1.75rem;margin:2.5rem 0;box-shadow:0 6px 25px rgba(0,119,182,0.08)}[data-theme="dark"] .topic-drill-card{background:var(--dark-surface);border-color:var(--dark-border);box-shadow:0 6px 25px rgba(0,0,0,0.3)}.drill-header{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}.drill-title-wrap h3{margin:0.35rem 0;font-size:1.25rem;color:#03045e}[data-theme="dark"] .drill-title-wrap h3{color:#f8fafc}.drill-title-wrap p{margin:0;font-size:0.95rem;color:#64748b}[data-theme="dark"] .drill-title-wrap p{color:var(--dark-text-muted)}.drill-badge{font-size:0.8rem;font-weight:800;text-transform:uppercase;color:#0077b6;letter-spacing:0.05em}[data-theme="dark"] .drill-badge{color:#38bdf8}.drill-progress-bar{height:6px;background:#e2e8f0;border-radius:100px;margin:1.25rem 0 1.5rem 0;overflow:hidden}[data-theme="dark"] .drill-progress-bar{background:#1e293b}.drill-progress-fill{height:100%;background:#0077b6;width:33%;border-radius:100px;transition:width 0.3s ease}.drill-question-box{margin-top:1rem}.drill-question-text{font-size:1.15rem;font-weight:700;color:#03045e;margin-bottom:1.25rem;line-height:1.5}[data-theme="dark"] .drill-question-text{color:#f8fafc}.drill-options{display:flex;flex-direction:column;gap:0.75rem}.drill-option-btn{display:flex;align-items:center;padding:0.85rem 1.25rem;border:1.5px solid #cbd5e1;border-radius:10px;background:#ffffff;cursor:pointer;font-size:1rem;text-align:left;transition:all 0.15s ease;gap:0.75rem}[data-theme="dark"] .drill-option-btn{background:var(--dark-card);border-color:var(--dark-border);color:#f1f5f9}.drill-option-btn:hover:not([disabled]){border-color:#0077b6;background:#f0f9ff}[data-theme="dark"] .drill-option-btn:hover:not([disabled]){border-color:#38bdf8;background:var(--dark-card-hover)}.drill-option-letter{width:28px;height:28px;border-radius:50%;background:#e2e8f0;display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:0.85rem;flex-shrink:0}[data-theme="dark"] .drill-option-letter{background:#1e293b;color:#f1f5f9}.drill-option-btn.correct{border-color:#10b981 !important;background:#ecfdf5 !important;color:#065f46 !important}.drill-option-btn.incorrect{border-color:#ef4444 !important;background:#fef2f2 !important;color:#991b1b !important}.drill-explanation{margin-top:1.25rem;padding:1rem 1.25rem;border-radius:10px;background:#f8fafc;border-left:4px solid #0077b6;font-size:0.95rem;line-height:1.6}[data-theme="dark"] .drill-explanation{background:#1e293b;border-left-color:#38bdf8;color:#cbd5e1}.pearson-vue-mode{background:#f0f2f5 !important;font-family:Arial,Helvetica,sans-serif !important}[data-theme="dark"] .pearson-vue-mode{background:#0d1117 !important}.pearson-top-bar{background:#004b87;color:#ffffff;padding:0.6rem 1.5rem;display:flex;justify-content:space-between;align-items:center;font-family:Arial,sans-serif;font-size:0.95rem;box-shadow:0 2px 8px rgba(0,0,0,0.15)}.pearson-flag-btn{background:transparent;border:1px solid rgba(255,255,255,0.4);color:#ffffff;padding:0.35rem 0.8rem;border-radius:4px;cursor:pointer;font-size:0.85rem;font-weight:bold;display:inline-flex;align-items:center;gap:0.4rem}.pearson-flag-btn.flagged{background:#e65100;border-color:#e65100}.pearson-bottom-bar{background:#ffffff;border-top:1px solid #dcdfe4;padding:0.85rem 1.5rem;display:flex;justify-content:space-between;align-items:center;position:sticky;bottom:0;z-index:100}[data-theme="dark"] .pearson-bottom-bar{background:var(--dark-surface);border-top-color:var(--dark-border)}.pearson-nav-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(36px,1fr));gap:6px;padding:1rem;max-height:360px;overflow-y:auto}.pearson-grid-item{width:36px;height:36px;border-radius:4px;border:1px solid #cbd5e1;background:#ffffff;display:flex;align-items:center;justify-content:center;font-size:0.8rem;font-weight:700;cursor:pointer;position:relative}[data-theme="dark"] .pearson-grid-item{background:var(--dark-card);border-color:var(--dark-border);color:#f1f5f9}.pearson-grid-item.answered{background:#004b87;color:#ffffff;border-color:#004b87}.pearson-grid-item.flagged::after{content:"🚩";font-size:0.65rem;position:absolute;top:-4px;right:-4px}.pearson-grid-item.current{outline:2px solid #e65100;outline-offset:1px}.flashcard-leitner-controls{display:flex;gap:1rem;justify-content:center;align-items:center;margin-top:1.5rem;flex-wrap:wrap}.leitner-btn{display:inline-flex;align-items:center;gap:0.5rem;padding:0.85rem 1.75rem;border-radius:12px;font-weight:700;font-size:1rem;cursor:pointer;border:none;transition:transform 0.15s ease,box-shadow 0.15s ease}.leitner-btn:hover{transform:translateY(-2px)}.leitner-learning{background:#f59e0b;color:#ffffff;box-shadow:0 4px 14px rgba(245,158,11,0.35)}.leitner-mastered{background:#10b981;color:#ffffff;box-shadow:0 4px 14px rgba(16,185,129,0.35)}.leitner-progress-row{display:flex;align-items:center;gap:1rem;margin-top:1rem;justify-content:center;font-size:0.9rem;font-weight:700;color:#475569}[data-theme="dark"] .leitner-progress-row{color:var(--dark-text-muted)}.score-ring-wrap{position:relative;width:140px;height:140px;margin:1.5rem auto}.score-ring-svg{transform:rotate(-90deg)}.score-ring-bg{fill:none;stroke:#e2e8f0;stroke-width:10}[data-theme="dark"] .score-ring-bg{stroke:#1e293b}.score-ring-fill{fill:none;stroke:#10b981;stroke-width:10;stroke-linecap:round;transition:stroke-dashoffset 1s ease-in-out}.score-ring-text{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:2rem;font-weight:800;color:var(--deep-twilight)}[data-theme="dark"] .score-ring-text{color:#f8fafc}.exam-mode-switch-wrap{display:flex;align-items:center;gap:0.85rem;margin:1rem 0;flex-wrap:wrap;background:#f8fafc;border:1px solid #e2e8f0;border-radius:12px;padding:0.6rem 1rem}[data-theme="dark"] .exam-mode-switch-wrap{background:var(--dark-surface);border-color:var(--dark-border)}.mode-switch-label{font-size:0.85rem;font-weight:800;text-transform:uppercase;letter-spacing:0.04em;color:#475569}[data-theme="dark"] .mode-switch-label{color:var(--dark-text-muted)}.mode-toggle-group{display:inline-flex;background:#e2e8f0;border-radius:8px;padding:3px;gap:3px}[data-theme="dark"] .mode-toggle-group{background:#1e293b}.mode-toggle-btn{border:none;background:transparent;padding:0.45rem 0.9rem;border-radius:6px;font-size:0.85rem;font-weight:700;color:#475569;cursor:pointer;transition:all 0.15s ease;display:inline-flex;align-items:center;gap:0.35rem}[data-theme="dark"] .mode-toggle-btn{color:#94a3b8}.mode-toggle-btn.active{background:#ffffff;color:#0077b6;box-shadow:0 2px 6px rgba(0,0,0,0.08)}[data-theme="dark"] .mode-toggle-btn.active{background:var(--dark-card);color:#38bdf8;box-shadow:0 2px 6px rgba(0,0,0,0.3)}.pearson-vue-active .option-btn.pearson-selected{border:2px solid #004b87 !important;background:#e8f0fe !important;color:#002b49 !important;font-weight:700 !important}[data-theme="dark"] .pearson-vue-active .option-btn.pearson-selected{border-color:#38bdf8 !important;background:rgba(56,189,248,0.18) !important;color:#f0f9ff !important}.pearson-vue-active .option-btn.pearson-selected .option-letter{background:#004b87 !important;color:#ffffff !important}[data-theme="dark"] .pearson-vue-active .option-btn.pearson-selected .option-letter{background:#38bdf8 !important;color:#0f172a !important}.pearson-modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.65);backdrop-filter:blur(4px);z-index:99999;display:flex;align-items:center;justify-content:center;padding:1rem}.pearson-modal{background:#ffffff;border-radius:14px;max-width:680px;width:100%;max-height:85vh;display:flex;flex-direction:column;box-shadow:0 20px 40px rgba(0,0,0,0.25);overflow:hidden}[data-theme="dark"] .pearson-modal{background:var(--dark-surface);border:1px solid var(--dark-border)}.pearson-modal-header{padding:1rem 1.5rem;background:#004b87;color:#ffffff;display:flex;justify-content:space-between;align-items:center;font-weight:700}.pearson-modal-header h3{margin:0;font-size:1.15rem;color:#ffffff}.pearson-modal-close{background:transparent;border:none;color:#ffffff;font-size:1.5rem;cursor:pointer;line-height:1}.pearson-modal-legend{padding:0.75rem 1.5rem;background:#f8fafc;border-bottom:1px solid #e2e8f0;display:flex;gap:1.25rem;font-size:0.85rem;font-weight:600;flex-wrap:wrap}[data-theme="dark"] .pearson-modal-legend{background:#0f172a;border-bottom-color:var(--dark-border);color:#cbd5e1}.legend-item{display:inline-flex;align-items:center;gap:0.4rem}.legend-box{width:16px;height:16px;border-radius:3px;border:1px solid #cbd5e1}.legend-box.answered{background:#004b87;border-color:#004b87}.legend-box.unanswered{background:#ffffff}.legend-box.flagged{background:#ffffff;border-color:#e65100;position:relative}.legend-box.flagged::after{content:"🚩";font-size:10px;position:absolute;top:-2px;left:1px}.pearson-modal-body{padding:1.25rem 1.5rem;overflow-y:auto}.pearson-modal-footer{padding:1rem 1.5rem;background:#f8fafc;border-top:1px solid #e2e8f0;display:flex;justify-content:space-between;align-items:center}[data-theme="dark"] .pearson-modal-footer{background:#0f172a;border-top-color:var(--dark-border)}.pearson-review-panel{background:#ffffff;border-radius:14px;border:1px solid #e2e8f0;padding:2rem;box-shadow:0 4px 20px rgba(0,0,0,0.05)}[data-theme="dark"] .pearson-review-panel{background:var(--dark-surface);border-color:var(--dark-border)}.pearson-review-summary{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:1rem;margin:1.5rem 0}.review-stat-card{background:#f8fafc;border:1px solid #e2e8f0;border-radius:10px;padding:1rem;text-align:center}[data-theme="dark"] .review-stat-card{background:var(--dark-card);border-color:var(--dark-border)}.review-stat-card .num{font-size:1.75rem;font-weight:800;display:block;color:#03045e}[data-theme="dark"] .review-stat-card .num{color:#38bdf8}.review-stat-card .lbl{font-size:0.8rem;font-weight:700;text-transform:uppercase;color:#64748b}.review-filter-tabs{display:flex;gap:0.5rem;margin:1.5rem 0 1rem 0;border-bottom:2px solid #e2e8f0;padding-bottom:0.5rem}[data-theme="dark"] .review-filter-tabs{border-bottom-color:var(--dark-border)}.review-tab-btn{background:transparent;border:none;font-weight:700;font-size:0.95rem;color:#64748b;padding:0.4rem 1rem;cursor:pointer;border-radius:6px;transition:all 0.15s ease}.review-tab-btn.active{background:#004b87;color:#ffffff}.pearson-review-table{width:100%;border-collapse:collapse;margin:1rem 0 2rem 0;font-size:0.95rem}.pearson-review-table th{text-align:left;padding:0.75rem 1rem;background:#f1f5f9;border-bottom:2px solid #cbd5e1;font-weight:700}[data-theme="dark"] .pearson-review-table th{background:#1e293b;border-bottom-color:var(--dark-border);color:#f1f5f9}.pearson-review-table td{padding:0.85rem 1rem;border-bottom:1px solid #e2e8f0;vertical-align:middle}[data-theme="dark"] .pearson-review-table td{border-bottom-color:var(--dark-border)}.review-table-row{cursor:pointer;transition:background 0.15s ease}.review-table-row:hover{background:#f0f9ff}[data-theme="dark"] .review-table-row:hover{background:var(--dark-card-hover)}.badge-status-answered{background:#dcfce7;color:#166534;padding:0.25rem 0.6rem;border-radius:6px;font-size:0.8rem;font-weight:700}.badge-status-incomplete{background:#fee2e2;color:#991b1b;padding:0.25rem 0.6rem;border-radius:6px;font-size:0.8rem;font-weight:700}.badge-status-flagged{background:#fef3c7;color:#92400e;padding:0.25rem 0.6rem;border-radius:6px;font-size:0.8rem;font-weight:700}.ad-container-wrapper{position:relative;width:100%;margin:1.75rem auto;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;background:rgba(248,250,252,0.6);border:1px dashed rgba(203,213,225,0.8);border-radius:12px;padding:0.5rem;box-sizing:border-box;overflow:hidden;transition:background 0.2s ease,border-color 0.2s ease}[data-theme="dark"] .ad-container-wrapper{background:rgba(30,41,59,0.4);border-color:rgba(51,65,85,0.8)}.ad-container-wrapper .ad-unit{width:100%;display:flex;flex-direction:column;align-items:center;justify-content:center}.ad-sponsored-label{font-size:0.65rem;text-transform:uppercase;letter-spacing:0.08em;color:#94a3b8;margin-bottom:0.35rem;font-weight:700}[data-theme="dark"] .ad-sponsored-label{color:#64748b}.ad-house-promo{background:linear-gradient(135deg,#f0f9ff 0%,#e0f2fe 100%);border:1px solid #bae6fd}[data-theme="dark"] .ad-house-promo{background:linear-gradient(135deg,#0f172a 0%,#1e293b 100%);border-color:#0369a1}.house-ad-inner{width:100%;padding:1rem 1.25rem;box-sizing:border-box}.house-ad-inner.banner-style{display:flex;align-items:center;justify-content:space-between;gap:1.25rem;flex-wrap:wrap}.house-ad-badge{display:inline-block;background:#0284c7;color:#fff;font-size:0.75rem;font-weight:800;text-transform:uppercase;padding:0.2rem 0.6rem;border-radius:6px;letter-spacing:0.04em}.house-ad-content{font-size:0.95rem;color:#0c4a6e;flex:1;min-width:250px;text-align:left}[data-theme="dark"] .house-ad-content{color:#e0f2fe}.house-ad-inner.sidebar-style{display:flex;flex-direction:column;align-items:center;text-align:center;padding:1.5rem 1rem}.house-ad-icon{font-size:2.2rem;margin-bottom:0.5rem}.house-ad-title{font-size:1.15rem;font-weight:800;color:#03045e;margin-bottom:0.35rem}[data-theme="dark"] .house-ad-title{color:#38bdf8}.house-ad-text{font-size:0.88rem;color:#475569;margin-bottom:1.25rem;line-height:1.4}[data-theme="dark"] .house-ad-text{color:#94a3b8}.house-ad-inner.article-style{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;flex-wrap:wrap;text-align:left;padding:1.25rem}.house-ad-pill{display:inline-block;background:#03045e;color:#fff;font-size:0.72rem;font-weight:800;text-transform:uppercase;padding:0.15rem 0.5rem;border-radius:4px;margin-bottom:0.4rem}[data-theme="dark"] .house-ad-pill{background:#38bdf8;color:#0b0f19}.house-ad-headline{font-size:1.1rem;font-weight:800;color:#0f172a;margin-bottom:0.2rem}[data-theme="dark"] .house-ad-headline{color:#f8fafc}.house-ad-sub{font-size:0.9rem;color:#475569}[data-theme="dark"] .house-ad-sub{color:#94a3b8}.btn-house-ad{background:#0077b6;color:#fff !important;font-weight:700;padding:0.65rem 1.25rem;border-radius:8px;text-decoration:none;font-size:0.9rem;white-space:nowrap;transition:background 0.2s ease,transform 0.15s ease;box-shadow:0 2px 8px rgba(0,119,182,0.25)}.btn-house-ad:hover{background:#023e8a;transform:translateY(-1px)}.rationale-container{margin-top:0.85rem;padding:1.15rem;background:#f8fafc;border:1px solid #e2e8f0;border-radius:10px;font-size:0.95rem;line-height:1.6}[data-theme="dark"] .rationale-container{background:#0f172a;border-color:var(--dark-border);color:#e2e8f0}.answer-comparison-row{display:flex;flex-direction:column;gap:0.5rem;margin-bottom:1rem;padding-bottom:0.85rem;border-bottom:1px dashed #cbd5e1}[data-theme="dark"] .answer-comparison-row{border-bottom-color:var(--dark-border)}.user-answer-chip{display:inline-flex;align-items:center;gap:0.5rem;padding:0.4rem 0.85rem;border-radius:6px;font-size:0.88rem;font-weight:600}.user-answer-chip.user-chip-correct{background:#dcfce7;color:#15803d;border:1px solid #86efac}.user-answer-chip.user-chip-incorrect{background:#fee2e2;color:#b91c1c;border:1px solid #fca5a5}[data-theme="dark"] .user-answer-chip.user-chip-correct{background:rgba(22,101,52,0.25);color:#4ade80;border-color:#166534}[data-theme="dark"] .user-answer-chip.user-chip-incorrect{background:rgba(153,27,27,0.25);color:#f87171;border-color:#991b1b}.correct-answer-chip{display:inline-flex;align-items:center;gap:0.5rem;padding:0.4rem 0.85rem;border-radius:6px;background:#e0f2fe;color:#0369a1;border:1px solid #7dd3fc;font-size:0.88rem;font-weight:600}[data-theme="dark"] .correct-answer-chip{background:rgba(3,105,161,0.25);color:#38bdf8;border-color:#0284c7}.rationale-title{font-size:0.95rem;font-weight:800;color:#03045e;margin-bottom:0.4rem;display:flex;align-items:center;gap:0.4rem}[data-theme="dark"] .rationale-title{color:#38bdf8}.rationale-body{color:#334155}[data-theme="dark"] .rationale-body{color:#cbd5e1}.rationale-body strong{color:#0f172a}[data-theme="dark"] .rationale-body strong{color:#f1f5f9}.flashcards-page .section-padding.bg-light{background:#f8fafc}[data-theme="dark"] .flashcards-page .section-padding.bg-light{background:#0b1329}.deck-filters-wrapper{margin-bottom:2rem}.deck-filters{display:flex;justify-content:center;align-items:center;gap:0.6rem;flex-wrap:wrap;padding:0.75rem;background:#ffffff;border:1px solid #e2e8f0;border-radius:9999px;box-shadow:0 4px 16px rgba(0,0,0,0.04);max-width:1050px;margin:0 auto}[data-theme="dark"] .deck-filters{background:#131d36;border-color:#1e293b;box-shadow:0 4px 20px rgba(0,0,0,0.35)}.deck-filters .filter-btn{border:1px solid #cbd5e1 !important;background:#f8fafc !important;color:#334155 !important;font-weight:700;font-size:0.88rem;padding:0.5rem 1.15rem;border-radius:9999px;cursor:pointer;transition:all 0.2s cubic-bezier(0.4,0,0.2,1);white-space:nowrap;outline:none}.deck-filters .filter-btn:hover{background:#e2e8f0 !important;color:#0f172a !important;border-color:#94a3b8 !important;transform:translateY(-1px)}.deck-filters .filter-btn.active{background:linear-gradient(135deg,#0077b6 0%,#023e8a 100%) !important;color:#ffffff !important;border-color:#0077b6 !important;box-shadow:0 4px 14px rgba(0,119,182,0.35) !important;transform:translateY(-1px)}[data-theme="dark"] .deck-filters .filter-btn{border-color:#2a3854 !important;background:#172340 !important;color:#cbd5e1 !important}[data-theme="dark"] .deck-filters .filter-btn:hover{background:#1e2f54 !important;color:#ffffff !important;border-color:#38bdf8 !important}[data-theme="dark"] .deck-filters .filter-btn.active{background:linear-gradient(135deg,#0284c7 0%,#0369a1 100%) !important;color:#ffffff !important;border-color:#38bdf8 !important;box-shadow:0 4px 16px rgba(2,132,199,0.45) !important}.flashcard-progress-header{background:#ffffff;border:1px solid #e2e8f0;border-radius:16px;padding:1.25rem 1.5rem;box-shadow:0 4px 20px rgba(0,0,0,0.04)}[data-theme="dark"] .flashcard-progress-header{background:#131d36;border-color:#1e293b;box-shadow:0 4px 20px rgba(0,0,0,0.3)}.flashcard-progress-bar{height:8px;background:#e2e8f0;border-radius:9999px;overflow:hidden;margin:0.75rem 0 1rem}[data-theme="dark"] .flashcard-progress-bar{background:#1e293b}.flashcard-progress-bar .progress-fill{height:100%;background:linear-gradient(90deg,#0077b6,#00b4d8);border-radius:9999px;transition:width 0.35s ease}.leitner-progress-row{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:0.85rem}.leitner-status-badge{display:inline-flex;align-items:center;gap:0.45rem;font-size:0.92rem;font-weight:600;color:#334155}[data-theme="dark"] .leitner-status-badge{color:#e2e8f0}.leitner-status-badge .leitner-count-val{color:#10b981;font-weight:800}.leitner-pct-badge{background:rgba(16,185,129,0.12);color:#059669;padding:0.15rem 0.55rem;border-radius:9999px;font-size:0.8rem;font-weight:700;margin-left:0.25rem}[data-theme="dark"] .leitner-pct-badge{background:rgba(16,185,129,0.25);color:#34d399}.leitner-action-buttons{display:flex;gap:0.5rem;flex-wrap:wrap;align-items:center}.leitner-tool-btn{border:1px solid #cbd5e1;background:#f8fafc;color:#475569;font-size:0.82rem;font-weight:600;padding:0.42rem 0.85rem;border-radius:8px;cursor:pointer;display:inline-flex;align-items:center;gap:0.4rem;transition:all 0.2s ease}.leitner-tool-btn:hover{background:#e2e8f0;color:#0f172a;border-color:#94a3b8;transform:translateY(-1px)}.leitner-tool-btn.active{background:#0077b6;color:#ffffff;border-color:#0077b6;box-shadow:0 2px 8px rgba(0,119,182,0.25)}[data-theme="dark"] .leitner-tool-btn{background:#172340;border-color:#2a3854;color:#cbd5e1}[data-theme="dark"] .leitner-tool-btn:hover{background:#1e2f54;color:#ffffff;border-color:#38bdf8}[data-theme="dark"] .leitner-tool-btn.active{background:#0284c7;color:#ffffff;border-color:#38bdf8}.card-3d-viewport{perspective:1500px;margin:2.5rem 0 1.5rem}.flashcard-wrapper{position:relative;width:100%;max-width:820px;margin:0 auto}.flashcard{position:relative;width:100%;min-height:400px;cursor:pointer;transform-style:preserve-3d;transition:transform 0.5s cubic-bezier(0.34,1.56,0.64,1);border-radius:28px}.flashcard.flipped{transform:rotateY(180deg)}.card-face{position:absolute;inset:0;width:100%;min-height:420px;backface-visibility:hidden;-webkit-backface-visibility:hidden;border-radius:28px;padding:2.25rem 2.5rem 2rem;display:flex;flex-direction:column;justify-content:space-between;box-sizing:border-box;transition:box-shadow 0.3s ease,border-color 0.3s ease}.card-face.card-front{background:#ffffff;background-image:radial-gradient(circle at 50% 0%,rgba(56,189,248,0.08) 0%,transparent 65%),radial-gradient(#e2e8f0 1.2px,transparent 1.2px);background-size:100% 100%,24px 24px;border:1.5px solid #e2e8f0;box-shadow:0 20px 45px -15px rgba(15,23,42,0.08),0 4px 12px rgba(15,23,42,0.03),0 0 0 1px rgba(226,232,240,0.7)}.card-face.card-front:hover{box-shadow:0 25px 50px -15px rgba(15,23,42,0.12),0 8px 20px rgba(15,23,42,0.05),0 0 0 1.5px #bae6fd;border-color:#bae6fd}.card-face.card-back{background:#ffffff;background-image:radial-gradient(circle at 50% 0%,rgba(2,132,199,0.06) 0%,transparent 60%),radial-gradient(#e2e8f0 1.2px,transparent 1.2px);background-size:100% 100%,24px 24px;border:1.5px solid #e2e8f0;border-top:4.5px solid #0284c7;box-shadow:0 20px 45px -15px rgba(15,23,42,0.08),0 4px 12px rgba(15,23,42,0.03),0 0 0 1px rgba(226,232,240,0.7);color:#0f172a;transform:rotateY(180deg)}.card-face.card-back:hover{box-shadow:0 25px 50px -15px rgba(15,23,42,0.12),0 8px 20px rgba(15,23,42,0.05),0 0 0 1.5px #bae6fd;border-color:#bae6fd;border-top-color:#0284c7}.card-top-bar{position:relative !important;display:flex;justify-content:space-between;align-items:center;width:100%;margin-bottom:1rem}.card-face-badge{position:static !important;display:inline-flex;align-items:center;gap:0.35rem;padding:0.35rem 0.9rem;border-radius:9999px;font-size:0.72rem;font-weight:800;letter-spacing:1.5px;text-transform:uppercase;background:#e0f2fe;color:#0369a1;border:1px solid #bae6fd;box-shadow:0 1px 3px rgba(2,132,199,0.08)}.card-face-badge.badge-back{background:#eff6ff !important;color:#1d4ed8 !important;border:1px solid #bfdbfe !important;box-shadow:0 1px 3px rgba(29,78,216,0.08) !important}.card-back-edition-badge{font-size:0.72rem;font-weight:700;color:#64748b;letter-spacing:0.5px;text-transform:uppercase;padding:0.35rem 0.85rem;background:#f8fafc;border:1px solid #e2e8f0;border-radius:9999px}.btn-card-audio{background:#f8fafc;border:1px solid #e2e8f0;border-radius:50%;width:42px;height:42px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;font-size:1.1rem;color:#0284c7;transition:all 0.2s cubic-bezier(0.4,0,0.2,1);box-shadow:0 2px 6px rgba(15,23,42,0.05)}.btn-card-audio:hover{background:#0284c7;color:#ffffff;border-color:#0284c7;transform:scale(1.08);box-shadow:0 4px 14px rgba(2,132,199,0.3)}.btn-card-audio.is-speaking{background:#0284c7 !important;color:#ffffff !important;animation:pulse-audio 1.2s infinite ease-in-out}@keyframes pulse-audio{0%{transform:scale(1);box-shadow:0 0 0 0 rgba(2,132,199,0.6)}70%{transform:scale(1.12);box-shadow:0 0 0 10px rgba(2,132,199,0)}100%{transform:scale(1);box-shadow:0 0 0 0 rgba(2,132,199,0)}}.card-front-content{flex:1;display:flex;align-items:center;justify-content:center;width:100%;padding:1.5rem 0;text-align:center}.card-front .concept-name,.card-front #card-name{-webkit-background-clip:border-box !important;background-clip:border-box !important;-webkit-text-fill-color:currentColor !important;text-shadow:none !important;filter:none !important;font-family:inherit !important;font-size:2.65rem !important;font-weight:800 !important;line-height:1.25 !important;letter-spacing:-0.025em !important;margin:0 auto !important;max-width:95% !important;word-break:break-word !important;display:inline-block !important;padding:1.25rem 2.25rem !important;border-radius:20px !important;transition:all 0.25s ease !important;color:#0f172a !important;background:linear-gradient(180deg,#f8fafc 0%,#f1f5f9 100%) !important;border:1.5px solid #e2e8f0 !important;box-shadow:0 4px 18px rgba(15,23,42,0.05),0 1px 3px rgba(15,23,42,0.03) !important}.card-front .concept-name.reverse-scenario-text,.card-front #card-name.reverse-scenario-text{font-size:1.18rem !important;font-weight:500 !important;line-height:1.7 !important;color:#1e293b !important;text-align:left !important;background:#f8fafc !important;border:1.5px solid #cbd5e1 !important;border-left:5px solid #0284c7 !important;padding:1.4rem 1.65rem !important;border-radius:16px !important;box-shadow:0 4px 14px rgba(0,0,0,0.04) !important;max-width:100% !important;display:block !important}.flip-hint{display:inline-flex;align-items:center;justify-content:center;gap:0.5rem;margin:0 auto;font-size:0.8rem;font-weight:700;letter-spacing:0.5px;text-transform:uppercase;padding:0.45rem 1.25rem;border-radius:9999px;color:#475569;background:#f1f5f9;border:1px solid #e2e8f0;transition:all 0.2s ease;user-select:none}.flip-hint .icon-flip{font-style:normal;font-size:0.95rem;display:inline-block;transition:transform 0.3s ease}.card-face.card-front:hover .flip-hint,.card-face.card-back:hover .flip-hint,.flip-hint:hover{color:#0284c7;background:#e0f2fe;border-color:#bae6fd;box-shadow:0 2px 8px rgba(2,132,199,0.15)}.card-face.card-front:hover .flip-hint .icon-flip,.card-face.card-back:hover .flip-hint .icon-flip{transform:rotate(180deg)}.definition-scroll{flex:1;display:flex;align-items:center;justify-content:center;max-height:260px;overflow-y:auto;padding:0.75rem 1rem 0.75rem 0;margin:0.75rem 0;width:100%}.definition-scroll::-webkit-scrollbar{width:6px}.definition-scroll::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:9999px}.definition-scroll::-webkit-scrollbar-thumb:hover{background:#94a3b8}.definition-scroll::-webkit-scrollbar-track{background:#f1f5f9;border-radius:9999px}.definition-text{font-size:1.28rem !important;line-height:1.75 !important;color:#1e293b !important;text-align:left !important;font-weight:450 !important;letter-spacing:-0.01em !important;width:100%}.definition-text p{margin-bottom:0.85rem !important;color:#1e293b !important;line-height:1.75 !important}.definition-text strong,.definition-text b{color:#0284c7 !important;font-weight:700 !important}.reverse-reveal-card{text-align:center;padding:1.5rem 1rem;width:100%}.reverse-reveal-card .cat-pill{display:inline-block;margin-bottom:0.85rem;font-size:0.85rem}.reverse-target-term{font-size:2.35rem !important;font-weight:800 !important;color:#0f172a !important;line-height:1.2 !important;margin:0.5rem 0 0.5rem 0 !important;letter-spacing:-0.02em !important}.reverse-target-sub{display:inline-block;font-size:0.82rem;font-weight:700;color:#64748b;text-transform:uppercase;letter-spacing:1px;background:#f1f5f9;padding:0.3rem 0.85rem;border-radius:9999px;border:1px solid #e2e8f0}.card-face.card-back .flip-hint,.flip-hint.hint-white{color:#475569 !important;background:#f1f5f9 !important;border:1px solid #cbd5e1 !important;border-radius:9999px !important;padding:0.45rem 1.25rem !important;font-size:0.8rem !important;font-weight:700 !important;letter-spacing:0.5px !important;text-transform:uppercase !important;box-shadow:0 1px 3px rgba(15,23,42,0.05) !important;transition:all 0.2s ease !important;display:inline-flex !important;align-items:center !important;justify-content:center !important;gap:0.5rem !important;margin:0 auto !important;user-select:none !important}.card-face.card-back:hover .flip-hint,.card-face.card-back .flip-hint:hover,.flip-hint.hint-white:hover{color:#0284c7 !important;background:#e0f2fe !important;border-color:#bae6fd !important;box-shadow:0 2px 8px rgba(2,132,199,0.15) !important}.study-actions-row{display:flex;justify-content:center;align-items:center;gap:1.25rem;margin-top:2rem}.study-btn.btn-nav{width:52px;height:52px;border-radius:50%;background:#ffffff;border:2px solid #e2e8f0;color:#334155;font-size:1.75rem;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 4px 12px rgba(0,0,0,0.06);transition:all 0.2s cubic-bezier(0.4,0,0.2,1)}.study-btn.btn-nav:hover{background:#0077b6;border-color:#0077b6;color:#ffffff;transform:scale(1.08)}[data-theme="dark"] .study-btn.btn-nav{background:#131d36;border-color:#1e293b;color:#cbd5e1}[data-theme="dark"] .study-btn.btn-nav:hover{background:#0284c7;border-color:#38bdf8;color:#ffffff}.flashcard-leitner-controls{display:flex;align-items:center;gap:0.85rem;background:#ffffff;border:1px solid #e2e8f0;padding:0.5rem 0.85rem;border-radius:9999px;box-shadow:0 4px 16px rgba(0,0,0,0.05)}[data-theme="dark"] .flashcard-leitner-controls{background:#131d36;border-color:#1e293b}.leitner-btn{border:none;padding:0.65rem 1.25rem;border-radius:9999px;font-size:0.92rem;font-weight:700;cursor:pointer;display:inline-flex;align-items:center;gap:0.5rem;transition:all 0.2s ease}.leitner-learning{background:#fef3c7;color:#b45309;border:1px solid #fde68a}.leitner-learning:hover{background:#fde68a;color:#92400e;transform:translateY(-1px)}[data-theme="dark"] .leitner-learning{background:rgba(217,119,6,0.2);color:#fbbf24;border-color:rgba(251,191,36,0.3)}.leitner-mastered{background:#dcfce7;color:#15803d;border:1px solid #86efac}.leitner-mastered:hover{background:#86efac;color:#166534;transform:translateY(-1px)}[data-theme="dark"] .leitner-mastered{background:rgba(22,163,74,0.2);color:#4ade80;border-color:rgba(74,222,128,0.3)}.conf-pill.conf-review{background:#f1f5f9;color:#475569;border:1px solid #cbd5e1;padding:0.65rem 1.15rem;border-radius:9999px;font-size:0.92rem;font-weight:700;cursor:pointer;display:inline-flex;align-items:center;gap:0.45rem;transition:all 0.2s ease}.conf-pill.conf-review:hover{background:#e2e8f0;color:#0f172a;transform:translateY(-1px)}[data-theme="dark"] .conf-pill.conf-review{background:#172340;border-color:#2a3854;color:#cbd5e1}[data-theme="dark"] .conf-pill.conf-review:hover{background:#1e2f54;color:#ffffff;border-color:#38bdf8}.shortcut-tip{text-align:center;font-size:0.85rem;color:#64748b}[data-theme="dark"] .shortcut-tip{color:#94a3b8}.shortcut-tip kbd{background:#e2e8f0;border:1px solid #cbd5e1;color:#334155;padding:2px 6px;border-radius:4px;font-weight:700;font-size:0.78rem}[data-theme="dark"] .shortcut-tip kbd{background:#1e293b;border-color:#334155;color:#e2e8f0}[data-theme="dark"] .clinical-library-section{background:#070d1e}.library-header-premium{text-align:center;max-width:760px;margin:0 auto 3rem}.search-box-premium{display:flex;align-items:center;background:#ffffff;border:2px solid #e2e8f0;border-radius:9999px;padding:0.6rem 1.25rem;box-shadow:0 4px 20px rgba(0,0,0,0.05);transition:all 0.2s ease}.search-box-premium:focus-within{border-color:#0077b6;box-shadow:0 4px 20px rgba(0,119,182,0.18)}[data-theme="dark"] .search-box-premium{background:#131d36;border-color:#1e293b}[data-theme="dark"] .search-box-premium:focus-within{border-color:#38bdf8;box-shadow:0 4px 20px rgba(56,189,248,0.25)}.search-box-premium input{border:none;outline:none;width:100%;font-size:1rem;background:transparent;color:#1e293b;padding-left:0.5rem}[data-theme="dark"] .search-box-premium input{color:#f8fafc}.concepts-grid-premium{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1.5rem}.concept-premium-card{background:#ffffff !important;border:1px solid #e2e8f0 !important;border-radius:20px !important;padding:1.5rem !important;cursor:pointer;transition:all 0.25s cubic-bezier(0.4,0,0.2,1) !important;position:relative;display:flex;flex-direction:column;box-shadow:0 4px 12px rgba(0,0,0,0.03) !important}.concept-premium-card:hover{transform:translateY(-4px) !important;box-shadow:0 16px 32px rgba(0,119,182,0.1) !important;border-color:#0077b6 !important}.concept-premium-card.active{background:#f0f9ff !important;border:2px solid #0077b6 !important;box-shadow:0 12px 28px rgba(0,119,182,0.15) !important}.concept-premium-card.active::after{content:'STUDYING';position:absolute;top:1.25rem;right:1.25rem;font-size:0.65rem;font-weight:900;color:#0077b6;letter-spacing:1px;background:rgba(0,119,182,0.1);padding:0.2rem 0.6rem;border-radius:9999px}.concept-premium-card h3{font-size:1.25rem !important;font-weight:800 !important;color:#03045e !important;margin:0.4rem 0 0.6rem !important;line-height:1.3 !important}.concept-premium-card .card-mini-desc{font-size:0.92rem;line-height:1.55;color:#64748b;margin-bottom:1rem;flex:1}.concept-premium-card .premium-card-footer{display:flex;align-items:center;font-size:0.85rem;font-weight:700;color:#0077b6}[data-theme="dark"] .concept-premium-card{background:#131d36 !important;border-color:#1e293b !important;box-shadow:0 4px 16px rgba(0,0,0,0.3) !important}[data-theme="dark"] .concept-premium-card:hover{border-color:#38bdf8 !important;box-shadow:0 16px 36px rgba(0,0,0,0.5) !important}[data-theme="dark"] .concept-premium-card.active{background:#0f1f3d !important;border-color:#38bdf8 !important;box-shadow:0 12px 32px rgba(56,189,248,0.2) !important}[data-theme="dark"] .concept-premium-card.active::after{color:#38bdf8;background:rgba(56,189,248,0.15)}[data-theme="dark"] .concept-premium-card h3{color:#f8fafc !important}[data-theme="dark"] .concept-premium-card .card-mini-desc{color:#94a3b8}[data-theme="dark"] .concept-premium-card .premium-card-footer{color:#38bdf8}.library-pagination-wrap{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:0.75rem;margin-top:3rem}.btn-load-more{background:linear-gradient(135deg,#0077b6 0%,#023e8a 100%);color:#ffffff;border:none;padding:0.85rem 2rem;border-radius:9999px;font-size:1rem;font-weight:700;cursor:pointer;display:inline-flex;align-items:center;gap:0.5rem;box-shadow:0 4px 16px rgba(0,119,182,0.35);transition:all 0.2s cubic-bezier(0.4,0,0.2,1)}.btn-load-more:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,119,182,0.45)}.btn-load-more small{font-size:0.82rem;opacity:0.9;font-weight:500}.btn-show-all{background:transparent;border:1px solid #cbd5e1;color:#64748b;padding:0.4rem 1.25rem;border-radius:9999px;font-size:0.85rem;font-weight:600;cursor:pointer;transition:all 0.15s ease}.btn-show-all:hover{background:#f1f5f9;color:#0f172a;border-color:#94a3b8}[data-theme="dark"] .btn-load-more{background:linear-gradient(135deg,#0284c7 0%,#0369a1 100%);box-shadow:0 4px 16px rgba(2,132,199,0.45)}[data-theme="dark"] .btn-show-all{border-color:#2a3854;color:#94a3b8}[data-theme="dark"] .btn-show-all:hover{background:#172340;color:#f8fafc;border-color:#38bdf8}@media (max-width:768px){.deck-filters{justify-content:flex-start;overflow-x:auto;border-radius:16px;padding:0.6rem;-webkit-overflow-scrolling:touch;scrollbar-width:none}.deck-filters::-webkit-scrollbar{display:none}.flashcard{min-height:340px}.card-face{min-height:340px;padding:1.5rem}.card-front .concept-name,.card-front #card-name{font-size:1.65rem !important;padding:0.85rem 1.25rem !important}.definition-text{font-size:1.1rem !important;line-height:1.65 !important}.reverse-target-term{font-size:1.65rem !important}.flashcard-leitner-controls{flex-wrap:wrap;justify-content:center;border-radius:16px}.leitner-progress-row{flex-direction:column;align-items:flex-start}.leitner-action-buttons{width:100%}.leitner-tool-btn{flex:1;justify-content:center}}.quick-quiz-section{background:radial-gradient(circle at 50% 0%,rgba(0,180,216,0.08) 0%,transparent 65%);position:relative}.quick-quiz-widget{max-width:820px;margin:0 auto;background:#ffffff;border:1px solid rgba(0,119,182,0.16);border-radius:24px;padding:2.5rem;box-shadow:0 20px 40px -15px rgba(3,4,94,0.08),0 0 0 1px rgba(255,255,255,0.8) inset;position:relative;overflow:hidden;transition:all 0.3s cubic-bezier(0.4,0,0.2,1)}.quick-quiz-loading{text-align:center;padding:3rem 1rem;color:var(--deep-twilight);font-weight:600}.quick-quiz-spinner{width:44px;height:44px;border:4px solid #e0f2fe;border-top-color:var(--bright-teal-blue);border-radius:50%;animation:qqSpin 0.75s linear infinite;margin:0 auto 1.25rem}@keyframes qqSpin{to{transform:rotate(360deg)}}.quick-quiz-progress{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:1.5px solid rgba(144,224,239,0.3);font-weight:700;font-size:0.95rem;color:var(--deep-twilight)}.quick-quiz-score-badge{background:rgba(16,185,129,0.12);color:#059669;padding:0.35rem 0.9rem;border-radius:100px;font-weight:700;font-size:0.85rem;border:1px solid rgba(16,185,129,0.25);display:inline-flex;align-items:center;gap:0.3rem}.qq-question-text{font-size:1.3rem;font-weight:700;line-height:1.5;color:var(--deep-twilight);margin-bottom:1.75rem;letter-spacing:-0.01em}.qq-options{display:flex;flex-direction:column;gap:0.85rem;margin-bottom:1.5rem}.qq-option{display:flex;align-items:flex-start;gap:1rem;width:100%;text-align:left;padding:1.1rem 1.35rem;border:1.5px solid #e2e8f0;background:#ffffff;border-radius:14px;cursor:pointer;font-size:1.05rem;font-family:inherit;line-height:1.5;transition:all 0.2s cubic-bezier(0.4,0,0.2,1);color:#1e293b;box-shadow:0 2px 4px rgba(0,0,0,0.02)}.qq-option:hover:not([disabled]){border-color:#00b4d8;background:#f0f9ff;transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,180,216,0.12)}.qq-letter{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;min-width:32px;border-radius:8px;font-weight:800;font-size:0.9rem;background:#e0f2fe;color:#0369a1;transition:all 0.2s;flex-shrink:0}.qq-text{flex:1;font-weight:500;padding-top:2px}.qq-option.qq-correct{border-color:#10b981 !important;background:linear-gradient(135deg,rgba(16,185,129,0.12),rgba(16,185,129,0.04)) !important;color:#047857 !important;animation:qqOptionPop 0.35s ease}.qq-option.qq-correct .qq-letter{background:#10b981 !important;color:#ffffff !important}.qq-option.qq-wrong{border-color:#ef4444 !important;background:linear-gradient(135deg,rgba(239,68,68,0.12),rgba(239,68,68,0.04)) !important;color:#b91c1c !important}.qq-option.qq-wrong .qq-letter{background:#ef4444 !important;color:#ffffff !important}@keyframes qqOptionPop{0%{transform:scale(1)}50%{transform:scale(1.02)}100%{transform:scale(1)}}.qq-explanation{margin-top:1.25rem;padding:1.25rem 1.5rem;background:#f0fdf4;border-left:4px solid #10b981;border-radius:0 12px 12px 0;font-size:0.98rem;line-height:1.65;color:#166534;box-shadow:0 4px 12px rgba(16,185,129,0.06);animation:qqSlideDown 0.3s ease-out}@keyframes qqSlideDown{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.qq-next-btn{margin-top:1.5rem;display:inline-flex;align-items:center;padding:0.85rem 2.25rem;font-weight:700;border-radius:12px;font-size:1.05rem;cursor:pointer;background:linear-gradient(135deg,var(--bright-teal-blue),#0284c7);color:#fff;border:none;box-shadow:0 6px 18px rgba(0,119,182,0.28);transition:all 0.2s cubic-bezier(0.4,0,0.2,1)}.qq-next-btn:hover{background:linear-gradient(135deg,var(--deep-twilight),var(--bright-teal-blue));transform:translateY(-2px);box-shadow:0 10px 24px rgba(0,119,182,0.35)}.quick-quiz-results{text-align:center;padding:1.5rem 0;animation:fadeIn 0.4s ease-out}.quick-quiz-score-circle{width:124px;height:124px;border-radius:50%;margin:0.5rem auto 1.5rem;background:linear-gradient(135deg,var(--deep-twilight) 0%,var(--bright-teal-blue) 100%);display:flex;flex-direction:column;align-items:center;justify-content:center;color:#ffffff;box-shadow:0 12px 30px rgba(0,119,182,0.3)}#qq-final-score{font-size:3rem;font-weight:900;line-height:1}.quick-quiz-score-circle small{font-size:0.75rem;text-transform:uppercase;letter-spacing:1px;opacity:0.85;margin-top:2px}.quick-quiz-result-msg{font-size:1.15rem;line-height:1.65;font-weight:600;color:var(--deep-twilight);max-width:550px;margin:0 auto 2rem}.quick-quiz-result-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.btn-outline{background:transparent;border:2px solid var(--bright-teal-blue);color:var(--bright-teal-blue);font-weight:700;padding:0.85rem 1.75rem;border-radius:12px;cursor:pointer;transition:all 0.2s;font-family:inherit;font-size:1rem}.btn-outline:hover{background:rgba(0,119,182,0.08);transform:translateY(-2px)}@media (max-width:640px){.quick-quiz-widget{padding:1.5rem;border-radius:18px}.qq-question-text{font-size:1.15rem}.qq-option{padding:0.9rem 1rem;font-size:0.95rem}.quick-quiz-result-actions{flex-direction:column}.quick-quiz-result-actions .btn{width:100%}}[data-theme="dark"] .quick-quiz-section{background:radial-gradient(circle at 50% 0%,rgba(56,189,248,0.06) 0%,transparent 65%)}[data-theme="dark"] .quick-quiz-widget{background:#111827 !important;border-color:var(--dark-border) !important;box-shadow:0 20px 40px -15px rgba(0,0,0,0.6) !important}[data-theme="dark"] .quick-quiz-loading{color:#f8fafc}[data-theme="dark"] .quick-quiz-progress{border-bottom-color:var(--dark-border);color:#cbd5e1}[data-theme="dark"] .quick-quiz-score-badge{background:rgba(16,185,129,0.2);color:#34d399;border-color:rgba(52,211,153,0.3)}[data-theme="dark"] .qq-question-text{color:#f8fafc !important}[data-theme="dark"] .qq-option{background:#1a2234 !important;border-color:var(--dark-border) !important;color:#f1f5f9 !important;box-shadow:none}[data-theme="dark"] .qq-option:hover:not([disabled]){background:#232f48 !important;border-color:#38bdf8 !important;box-shadow:0 8px 20px rgba(0,0,0,0.3)}[data-theme="dark"] .qq-letter{background:#0f2744;color:#38bdf8}[data-theme="dark"] .qq-option.qq-correct{background:rgba(16,185,129,0.18) !important;border-color:#10b981 !important;color:#34d399 !important}[data-theme="dark"] .qq-option.qq-correct .qq-letter{background:#10b981 !important;color:#ffffff !important}[data-theme="dark"] .qq-option.qq-wrong{background:rgba(239,68,68,0.18) !important;border-color:#ef4444 !important;color:#f87171 !important}[data-theme="dark"] .qq-option.qq-wrong .qq-letter{background:#ef4444 !important;color:#ffffff !important}[data-theme="dark"] .qq-explanation{background:rgba(16,185,129,0.12) !important;color:#a7f3d0 !important;border-left-color:#34d399 !important;box-shadow:0 4px 12px rgba(0,0,0,0.2)}[data-theme="dark"] .quick-quiz-result-msg{color:#cbd5e1}[data-theme="dark"] .btn-outline{border-color:#38bdf8;color:#38bdf8}[data-theme="dark"] .btn-outline:hover{background:rgba(56,189,248,0.1)}.resume-banner{background:linear-gradient(135deg,#f0f9ff 0%,#e0f2fe 100%);border:1.5px solid #7dd3fc;border-radius:16px;padding:1.25rem 1.5rem;margin-bottom:2rem;box-shadow:0 8px 24px rgba(2,132,199,0.08);animation:fadeIn 0.35s ease-out}.resume-banner-inner{display:flex;align-items:center;justify-content:space-between;gap:1.25rem;flex-wrap:wrap}.resume-banner-icon{font-size:2rem;display:flex;align-items:center}.resume-banner-text{flex:1;display:flex;flex-direction:column;gap:2px}.resume-banner-text strong{font-size:1.05rem;color:#034f78;font-weight:800}.resume-banner-text span{font-size:0.9rem;color:#0284c7;font-weight:600}.resume-banner-actions{display:flex;align-items:center;gap:0.75rem}.resume-banner-actions .btn-sm{padding:0.55rem 1.25rem;font-size:0.9rem;border-radius:10px;font-weight:700}.resume-banner-actions #resume-yes{background:#0284c7;color:#ffffff;border:none;cursor:pointer;box-shadow:0 4px 12px rgba(2,132,199,0.25);transition:all 0.2s}.resume-banner-actions #resume-yes:hover{background:#0369a1;transform:translateY(-1px)}.resume-banner-actions #resume-no{background:transparent;color:#64748b;border:1px solid #cbd5e1;cursor:pointer;transition:all 0.2s}.resume-banner-actions #resume-no:hover{background:rgba(0,0,0,0.05);color:#334155}[data-theme="dark"] .resume-banner{background:linear-gradient(135deg,#111e33 0%,#172a45 100%) !important;border-color:#254b73 !important;box-shadow:0 8px 24px rgba(0,0,0,0.4) !important}[data-theme="dark"] .resume-banner-text strong{color:#f1f5f9 !important}[data-theme="dark"] .resume-banner-text span{color:#38bdf8 !important}[data-theme="dark"] .resume-banner-actions #resume-yes{background:#38bdf8 !important;color:#090d16 !important}[data-theme="dark"] .resume-banner-actions #resume-no{color:#94a3b8 !important;border-color:#334155 !important}[data-theme="dark"] .resume-banner-actions #resume-no:hover{background:rgba(255,255,255,0.05) !important;color:#f1f5f9 !important}.clear-history-btn,#clear-history-btn{background:transparent;border:1px solid #cbd5e1;color:#64748b;font-size:0.85rem;font-weight:600;padding:0.45rem 1rem;border-radius:8px;cursor:pointer;transition:all 0.2s;font-family:inherit}.clear-history-btn:hover,#clear-history-btn:hover{background:#fee2e2;border-color:#fca5a5;color:#b91c1c}[data-theme="dark"] .clear-history-btn,[data-theme="dark"] #clear-history-btn{border-color:#334155;color:#94a3b8}[data-theme="dark"] .clear-history-btn:hover,[data-theme="dark"] #clear-history-btn:hover{background:rgba(239,68,68,0.15);border-color:rgba(239,68,68,0.3);color:#f87171}.header-actions{display:flex;align-items:center;gap:0.75rem;margin-left:1rem}@media (min-width:769px){.main-nav{margin-left:auto}}.quiz-sticky-hud{position:sticky;top:70px;z-index:950;background:rgba(255,255,255,0.92);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid rgba(0,119,182,0.16);box-shadow:0 10px 30px -10px rgba(3,4,94,0.08),0 0 0 1px rgba(255,255,255,0.8) inset;border-radius:18px;padding:0.85rem 1.75rem;margin-bottom:2rem;display:flex;align-items:center;justify-content:space-between;gap:1.5rem;transition:all 0.3s cubic-bezier(0.4,0,0.2,1)}.hud-left{display:flex;flex-direction:column;gap:0.35rem;min-width:190px;flex:1;max-width:320px}.hud-progress-info{display:flex;justify-content:space-between;font-size:0.85rem;font-weight:700;color:var(--deep-twilight)}.hud-q-label strong{color:var(--bright-teal-blue)}.hud-pct{font-size:0.8rem;color:#64748b;font-variant-numeric:tabular-nums}.hud-progress-track{width:100%;height:8px;background:#e2e8f0;border-radius:100px;overflow:hidden}.hud-progress-fill{height:100%;background:linear-gradient(90deg,#0077b6,#00b4d8);border-radius:100px;transition:width 0.35s cubic-bezier(0.4,0,0.2,1)}.hud-center{display:flex;align-items:center;justify-content:center}.hud-timer-badge{display:inline-flex;align-items:center;gap:0.45rem;background:#f0f9ff;border:1.5px solid #bae6fd;padding:0.45rem 1.1rem;border-radius:100px;font-weight:800;font-size:1.1rem;font-family:'Inter',monospace;font-variant-numeric:tabular-nums;color:#0284c7;box-shadow:0 2px 8px rgba(0,119,182,0.08)}.hud-timer-icon{font-size:1.1rem}.hud-right{display:flex;align-items:center;gap:0.75rem}.hud-score-tracker{display:flex;gap:0.5rem}.hud-correct-pill,.hud-incorrect-pill{padding:0.35rem 0.85rem;border-radius:50px;font-weight:800;font-size:0.88rem;display:inline-flex;align-items:center;gap:0.3rem}.hud-correct-pill{background:rgba(16,185,129,0.12);color:#059669;border:1px solid rgba(16,185,129,0.25)}.hud-incorrect-pill{background:rgba(239,68,68,0.12);color:#b91c1c;border:1px solid rgba(239,68,68,0.25)}.question-container{background:#ffffff;border-radius:24px;border:1px solid rgba(0,119,182,0.14);padding:2.5rem;box-shadow:0 16px 40px -10px rgba(3,4,94,0.07);margin-bottom:2rem;transition:all 0.3s cubic-bezier(0.4,0,0.2,1)}.question-meta-bar{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.q-badge-pill{background:rgba(0,119,182,0.08);color:var(--bright-teal-blue);font-weight:800;font-size:0.82rem;text-transform:uppercase;letter-spacing:0.05em;padding:0.35rem 0.85rem;border-radius:8px;border:1px solid rgba(0,119,182,0.15)}.q-difficulty-pill{background:#f1f5f9;color:#475569;font-weight:700;font-size:0.8rem;padding:0.3rem 0.75rem;border-radius:6px}.question-text{font-size:1.35rem;font-weight:700;line-height:1.6;color:var(--deep-twilight);margin:0 0 2rem;letter-spacing:-0.01em}.question-action-bar{display:flex;justify-content:flex-end;margin-top:2rem}.question-action-bar .next-question{padding:0.95rem 2.5rem;font-size:1.05rem;font-weight:700;border-radius:12px;background:linear-gradient(135deg,var(--bright-teal-blue),#0284c7);color:#fff;border:none;cursor:pointer;box-shadow:0 8px 24px rgba(0,119,182,0.3);transition:all 0.2s cubic-bezier(0.4,0,0.2,1)}.question-action-bar .next-question:hover{background:linear-gradient(135deg,var(--deep-twilight),var(--bright-teal-blue));transform:translateY(-2px);box-shadow:0 12px 28px rgba(0,119,182,0.4)}.explanation-title{display:flex;align-items:center;gap:0.5rem;margin-bottom:0.75rem;font-size:1.05rem;color:#047857}.exp-icon{font-size:1.25rem}[data-theme="dark"] .quiz-sticky-hud{background:rgba(17,24,39,0.92) !important;border-color:var(--dark-border) !important;box-shadow:0 10px 30px -10px rgba(0,0,0,0.6) !important}[data-theme="dark"] .hud-progress-info{color:#f1f5f9}[data-theme="dark"] .hud-progress-track{background:#1e293b}[data-theme="dark"] .hud-timer-badge{background:#111e33;border-color:#1e3a5f;color:#38bdf8}[data-theme="dark"] .q-badge-pill{background:rgba(56,189,248,0.12);color:#38bdf8;border-color:rgba(56,189,248,0.25)}[data-theme="dark"] .q-difficulty-pill{background:#1e293b;color:#94a3b8}[data-theme="dark"] .explanation-title{color:#34d399}@media (max-width:768px){.quiz-sticky-hud{top:55px;padding:0.65rem 1rem;gap:0.75rem;border-radius:12px}.hud-left{min-width:120px}.hud-timer-badge{font-size:0.95rem;padding:0.35rem 0.75rem}.question-container{padding:1.5rem;border-radius:18px}.question-text{font-size:1.15rem}}.practice-exams-header{background:radial-gradient(circle at 80% 20%,rgba(0,180,216,0.25) 0%,transparent 50%),radial-gradient(circle at 20% 80%,rgba(3,4,94,0.3) 0%,transparent 60%),linear-gradient(135deg,var(--deep-twilight) 0%,#023e8a 60%,var(--bright-teal-blue) 100%);padding:6rem 0 5rem;text-align:center;color:#ffffff;position:relative;overflow:hidden;box-shadow:0 12px 36px rgba(0,0,0,0.15)}.practice-exams-header h1{font-size:3.5rem;font-weight:800;margin:0.5rem 0 1rem;letter-spacing:-0.02em;color:#ffffff}.practice-exams-header .subtitle{font-size:1.25rem;color:#e0f2fe;max-width:720px;margin:0 auto 2.5rem;line-height:1.6}.exam-stats-row{display:flex;justify-content:center;gap:3rem;flex-wrap:wrap}.exam-stat{display:flex;flex-direction:column;align-items:center}.exam-stat-number{font-size:2.2rem;font-weight:800;color:#ffffff;line-height:1;margin-bottom:0.35rem}.exam-stat-label{font-size:0.85rem;text-transform:uppercase;letter-spacing:1px;color:#bae6fd;font-weight:600}.site-header{background:rgba(255,255,255,0.88);backdrop-filter:blur(24px) saturate(180%);-webkit-backdrop-filter:blur(24px) saturate(180%);border-bottom:1px solid rgba(0,119,182,0.12);box-shadow:0 4px 20px -2px rgba(3,4,94,0.05);position:sticky;top:0;z-index:1000;min-height:68px;display:flex;align-items:center;transition:background 0.3s ease,border-color 0.3s ease,box-shadow 0.3s ease}[data-theme="dark"] .site-header{background:rgba(11,17,32,0.90) !important;border-bottom:1px solid rgba(56,189,248,0.16) !important;box-shadow:0 6px 28px -2px rgba(0,0,0,0.6) !important}.header-inner{display:flex;justify-content:space-between;align-items:center;width:100%;gap:1.25rem}.logo{display:inline-flex;align-items:center;gap:0.75rem;text-decoration:none;flex-shrink:0}.logo-mark{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,#0077b6 0%,#00b4d8 100%);display:flex;align-items:center;justify-content:center;color:#ffffff;box-shadow:0 4px 14px rgba(0,119,182,0.32);transition:all 0.28s cubic-bezier(0.4,0,0.2,1);flex-shrink:0}.logo:hover .logo-mark{transform:scale(1.06) rotate(-2deg);box-shadow:0 6px 20px rgba(0,119,182,0.48)}.logo-icon{width:22px;height:22px;color:#ffffff}.logo-title-group{display:flex;align-items:baseline;gap:0.35rem}.logo-name{font-family:'Outfit','Inter',system-ui,sans-serif;font-size:1.28rem;font-weight:800;color:var(--deep-twilight);letter-spacing:-0.025em;line-height:1;transition:color 0.2s ease}.logo-badge{font-size:0.72rem;font-weight:800;color:#0077b6;background:rgba(0,119,182,0.1);border:1px solid rgba(0,119,182,0.18);padding:2px 6px;border-radius:6px;letter-spacing:-0.01em}[data-theme="dark"] .logo-name{color:#f8fafc !important}[data-theme="dark"] .logo-mark{background:linear-gradient(135deg,#0284c7 0%,#38bdf8 100%) !important;box-shadow:0 4px 16px rgba(56,189,248,0.35) !important}[data-theme="dark"] .logo:hover .logo-mark{box-shadow:0 6px 22px rgba(56,189,248,0.5) !important}[data-theme="dark"] .logo-badge{color:#38bdf8 !important;background:rgba(56,189,248,0.14) !important;border-color:rgba(56,189,248,0.28) !important}.main-nav{display:flex;align-items:center;gap:0.35rem}.nav-link{text-decoration:none;color:#334155;font-weight:600;font-size:0.9rem;padding:0.48rem 0.85rem;border-radius:10px;transition:all 0.2s cubic-bezier(0.4,0,0.2,1);display:inline-flex;align-items:center;gap:5px;position:relative}.nav-link::after{display:none !important}.nav-link:hover{color:#0077b6;background:rgba(0,119,182,0.08);transform:translateY(-1px)}.nav-link.active{color:#0077b6;background:rgba(0,119,182,0.12);font-weight:700}[data-theme="dark"] .nav-link{color:#cbd5e1}[data-theme="dark"] .nav-link:hover{color:#38bdf8;background:rgba(56,189,248,0.12)}[data-theme="dark"] .nav-link.active{color:#38bdf8;background:rgba(56,189,248,0.18);font-weight:700}.nav-caret{transition:transform 0.25s cubic-bezier(0.4,0,0.2,1);opacity:0.7;flex-shrink:0}.has-megamenu:hover .nav-caret,.has-megamenu.open .nav-caret{transform:rotate(180deg);opacity:1}.header-actions{display:flex;align-items:center;gap:0.75rem;flex-shrink:0}.header-cta-btn{display:inline-flex;align-items:center;gap:0.45rem;padding:0.5rem 1.15rem;background:linear-gradient(135deg,#0077b6 0%,#00b4d8 100%);color:#ffffff !important;font-weight:700;font-size:0.88rem;border-radius:11px;text-decoration:none;box-shadow:0 4px 14px rgba(0,119,182,0.28);transition:all 0.25s cubic-bezier(0.4,0,0.2,1);white-space:nowrap;letter-spacing:-0.01em}.header-cta-btn:hover{transform:translateY(-2px);box-shadow:0 8px 22px rgba(0,119,182,0.45);filter:brightness(1.06)}.header-cta-btn:active{transform:translateY(0)}.header-cta-btn .cta-icon{font-size:0.95rem}[data-theme="dark"] .header-cta-btn{background:linear-gradient(135deg,#0284c7 0%,#38bdf8 100%) !important;color:#041324 !important;box-shadow:0 4px 18px rgba(56,189,248,0.35) !important}[data-theme="dark"] .header-cta-btn:hover{box-shadow:0 8px 26px rgba(56,189,248,0.52) !important}.theme-toggle-btn{background:rgba(0,119,182,0.06);border:1.5px solid rgba(0,119,182,0.2);border-radius:50%;width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;color:var(--teal-dark);transition:all 0.25s cubic-bezier(0.4,0,0.2,1);padding:0;margin:0}.theme-toggle-btn:hover{background:rgba(0,119,182,0.14);border-color:var(--bright-teal-blue);transform:rotate(18deg) scale(1.06)}[data-theme="dark"] .theme-toggle-btn{background:rgba(56,189,248,0.1) !important;border-color:rgba(56,189,248,0.3) !important;color:#38bdf8 !important}[data-theme="dark"] .theme-toggle-btn:hover{background:rgba(56,189,248,0.2) !important;border-color:#38bdf8 !important}.megamenu{display:none;position:fixed;top:var(--megamenu-top,68px);left:0;right:0;z-index:1100;background:rgba(255,255,255,0.98);backdrop-filter:blur(28px) saturate(180%);-webkit-backdrop-filter:blur(28px) saturate(180%);border-top:1px solid rgba(0,119,182,0.12);border-bottom:3px solid #0077b6;box-shadow:0 24px 60px -10px rgba(3,4,94,0.14);padding:2rem 0 2.5rem;animation:megamenu-in 0.22s cubic-bezier(0.16,1,0.3,1)}[data-theme="dark"] .megamenu{background:rgba(11,17,32,0.98) !important;border-top-color:rgba(56,189,248,0.16) !important;border-bottom-color:#38bdf8 !important;box-shadow:0 28px 70px -10px rgba(0,0,0,0.75) !important}.has-megamenu:hover .megamenu,.has-megamenu.open .megamenu{display:block !important}.megamenu-inner{display:grid;grid-template-columns:290px 290px 1fr;gap:2.2rem;align-items:stretch}.megamenu-heading{font-size:0.78rem;font-weight:800;text-transform:uppercase;letter-spacing:0.08em;color:var(--bright-teal-blue);margin:0 0 1rem;display:flex;align-items:center;justify-content:space-between;border-bottom:1.5px solid rgba(0,119,182,0.12);padding-bottom:0.6rem}[data-theme="dark"] .megamenu-heading{color:#38bdf8;border-bottom-color:rgba(56,189,248,0.18)}.megamenu-heading-badge{font-size:0.68rem;font-weight:800;background:rgba(0,119,182,0.09);color:#0077b6;padding:2px 7px;border-radius:12px}[data-theme="dark"] .megamenu-heading-badge{background:rgba(56,189,248,0.15);color:#38bdf8}.megamenu-viewall{font-size:0.76rem;font-weight:700;color:#0077b6;text-decoration:none;transition:color 0.15s ease}.megamenu-viewall:hover{color:#023e8a;text-decoration:underline}[data-theme="dark"] .megamenu-viewall{color:#38bdf8}[data-theme="dark"] .megamenu-viewall:hover{color:#7dd3fc}.megamenu-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:0.35rem}.megamenu-list li a{display:flex;align-items:center;gap:0.75rem;padding:0.55rem 0.75rem;border-radius:10px;text-decoration:none;color:#1e293b;background:transparent;transition:all 0.18s ease;border:1px solid transparent}.megamenu-list li a:hover{background:rgba(0,119,182,0.06);border-color:rgba(0,119,182,0.16);transform:translateX(3px)}[data-theme="dark"] .megamenu-list li a{color:#f1f5f9}[data-theme="dark"] .megamenu-list li a:hover{background:rgba(56,189,248,0.08);border-color:rgba(56,189,248,0.22)}.menu-domain-icon{font-size:1.15rem;flex-shrink:0}.menu-domain-info{display:flex;flex-direction:column;line-height:1.25}.menu-domain-info strong{font-size:0.86rem;font-weight:700;color:inherit}.menu-domain-info span{font-size:0.72rem;color:#64748b;margin-top:2px}[data-theme="dark"] .menu-domain-info span{color:#94a3b8}.megamenu-featured-card{background:linear-gradient(145deg,#f0f9ff 0%,#e0f2fe 100%);border:1px solid rgba(0,119,182,0.22);border-radius:14px;padding:1.1rem;display:flex;flex-direction:column;gap:0.45rem;box-shadow:0 4px 15px rgba(0,119,182,0.08);margin-bottom:0.85rem}[data-theme="dark"] .megamenu-featured-card{background:linear-gradient(145deg,rgba(15,23,42,0.9) 0%,rgba(15,30,56,0.9) 100%);border-color:rgba(56,189,248,0.25);box-shadow:0 4px 20px rgba(0,0,0,0.4)}.featured-card-pill{align-self:flex-start;font-size:0.68rem;font-weight:800;text-transform:uppercase;letter-spacing:0.06em;background:#0077b6;color:#ffffff;padding:3px 8px;border-radius:6px}.megamenu-featured-card h4{margin:0;font-size:0.96rem;font-weight:800;color:#03045e;line-height:1.3}[data-theme="dark"] .megamenu-featured-card h4{color:#f8fafc}.megamenu-featured-card p{margin:0;font-size:0.78rem;color:#475569;line-height:1.4}[data-theme="dark"] .megamenu-featured-card p{color:#94a3b8}.featured-card-btn{align-self:flex-start;display:inline-flex;align-items:center;gap:0.4rem;padding:0.42rem 0.85rem;background:#0077b6;color:#ffffff !important;border-radius:8px;font-size:0.78rem;font-weight:700;text-decoration:none;margin-top:0.25rem;transition:all 0.2s ease}.featured-card-btn:hover{background:#023e8a;transform:translateY(-1px)}[data-theme="dark"] .featured-card-btn{background:#0284c7}.megamenu-quick-links{display:flex;flex-direction:column;gap:0.35rem}.megamenu-quick-item{display:flex;align-items:center;gap:0.65rem;padding:0.5rem 0.75rem;border-radius:10px;text-decoration:none;color:#1e293b;background:rgba(0,119,182,0.03);border:1px solid rgba(0,119,182,0.09);transition:all 0.18s ease}.megamenu-quick-item:hover{background:rgba(0,119,182,0.08);border-color:rgba(0,119,182,0.22);transform:translateX(2px)}[data-theme="dark"] .megamenu-quick-item{color:#f1f5f9;background:rgba(30,41,59,0.6);border-color:rgba(56,189,248,0.15)}[data-theme="dark"] .megamenu-quick-item:hover{background:rgba(56,189,248,0.12);border-color:rgba(56,189,248,0.3)}.quick-icon{font-size:1.1rem;flex-shrink:0}.quick-meta{display:flex;flex-direction:column;line-height:1.25}.quick-meta strong{font-size:0.82rem;font-weight:700;color:inherit}.quick-meta span{font-size:0.7rem;color:#64748b}[data-theme="dark"] .quick-meta span{color:#94a3b8}.megamenu-exams-scroll{max-height:380px;overflow-y:auto;padding-right:0.35rem;scrollbar-width:thin}.megamenu-exams-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:0.45rem}.megamenu-exam-pill{display:flex;align-items:center;justify-content:center;padding:0.42rem 0.35rem;border-radius:8px;border:1px solid rgba(0,119,182,0.18);background:#ffffff;color:#1e293b;text-decoration:none;font-size:0.76rem;font-weight:700;transition:all 0.18s cubic-bezier(0.4,0,0.2,1);text-align:center;white-space:nowrap}.megamenu-exam-pill:hover{background:#0077b6;border-color:#0077b6;color:#ffffff;transform:translateY(-2px);box-shadow:0 4px 10px rgba(0,119,182,0.3)}[data-theme="dark"] .megamenu-exam-pill{background:#111827;border-color:rgba(56,189,248,0.2);color:#e2e8f0}[data-theme="dark"] .megamenu-exam-pill:hover{background:#0284c7;border-color:#38bdf8;color:#ffffff;box-shadow:0 4px 12px rgba(56,189,248,0.35)}.mobile-nav-footer{display:none}@media (max-width:991px){.site-header{min-height:62px}.header-cta-btn{display:none}.main-nav{position:fixed;top:0;right:-100%;width:min(320px,85vw);height:100vh;background:rgba(255,255,255,0.98);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);box-shadow:-10px 0 35px rgba(0,0,0,0.15);flex-direction:column;justify-content:flex-start;align-items:stretch;gap:0.4rem;padding:5.5rem 1.5rem 2.5rem;z-index:1000;transition:right 0.35s cubic-bezier(0.16,1,0.3,1);overflow-y:auto}body.nav-open .main-nav{right:0}body.nav-open::before{content:'';position:fixed;inset:0;background:rgba(3,4,94,0.4);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);z-index:999;animation:megamenu-in 0.25s ease}[data-theme="dark"] body.nav-open::before{background:rgba(0,0,0,0.7)}[data-theme="dark"] .main-nav{background:rgba(11,17,32,0.98) !important;box-shadow:-10px 0 40px rgba(0,0,0,0.6) !important}.main-nav .nav-link{font-size:1.05rem;font-weight:700;padding:0.75rem 1rem;border-radius:10px;width:100%;text-align:left}.mobile-nav-footer{display:block;margin-top:auto;padding-top:1.5rem;border-top:1px solid rgba(0,119,182,0.12)}[data-theme="dark"] .mobile-nav-footer{border-top-color:rgba(56,189,248,0.15)}.mobile-nav-cta{display:flex;align-items:center;justify-content:center;gap:0.5rem;width:100%;padding:0.8rem 1rem;background:linear-gradient(135deg,#0077b6 0%,#00b4d8 100%);color:#ffffff !important;font-weight:700;font-size:0.92rem;border-radius:12px;text-decoration:none;box-shadow:0 4px 14px rgba(0,119,182,0.3);text-align:center}[data-theme="dark"] .mobile-nav-cta{background:linear-gradient(135deg,#0284c7 0%,#38bdf8 100%) !important;color:#041324 !important;box-shadow:0 4px 16px rgba(56,189,248,0.35) !important}.megamenu{display:none !important}}@media (max-width:480px){.logo-name{font-size:1.15rem}.logo-mark{width:36px;height:36px}.logo-badge{display:none}}.site-footer{background:linear-gradient(160deg,#03045e 0%,#023e8a 50%,#0077b6 100%);color:#ffffff;padding:5rem 0 2rem;position:relative;overflow:hidden}.site-footer::before{content:'';position:absolute;top:-50%;right:-20%;width:60%;height:200%;background:radial-gradient(circle,rgba(0,180,216,0.12) 0%,transparent 65%);pointer-events:none}[data-theme="dark"] .site-footer{background:#080c14 !important;border-top:1px solid var(--dark-border) !important}.footer-trust-badges{display:flex;gap:0.6rem;flex-wrap:wrap;margin-top:1rem}.trust-badge{background:rgba(255,255,255,0.12);border:1px solid rgba(255,255,255,0.2);padding:0.25rem 0.65rem;border-radius:6px;font-size:0.75rem;font-weight:700;color:#e0f2fe}.scroll-to-top{position:fixed;bottom:2rem;right:2rem;width:48px;height:48px;border-radius:50%;background:var(--bright-teal-blue);color:#ffffff;border:none;box-shadow:0 8px 24px rgba(0,119,182,0.35);display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:1000;opacity:0;visibility:hidden;transform:translateY(15px);transition:all 0.3s cubic-bezier(0.4,0,0.2,1)}.scroll-to-top.visible{opacity:1;visibility:visible;transform:translateY(0)}.scroll-to-top:hover{background:var(--deep-twilight);transform:translateY(-3px);box-shadow:0 12px 30px rgba(0,119,182,0.45)}.ad-container-wrapper{width:100%;margin:2rem auto;text-align:center;position:relative;overflow:hidden;box-sizing:border-box}.ad-container-wrapper.ad-header-banner{margin:0.75rem auto}.ad-sponsored-label{font-size:0.65rem;font-weight:800;text-transform:uppercase;letter-spacing:1.5px;color:#94a3b8;margin-bottom:0.4rem;text-align:center}.ad-house-promo{background:linear-gradient(135deg,#f0f9ff 0%,#e0f2fe 100%);border:1.5px solid #bae6fd;border-radius:16px;box-shadow:0 8px 24px rgba(2,132,199,0.07);display:flex;align-items:center;justify-content:center}[data-theme="dark"] .ad-house-promo{background:linear-gradient(135deg,#0f172a 0%,#1e293b 100%) !important;border-color:#0369a1 !important;box-shadow:0 8px 24px rgba(0,0,0,0.4) !important}.btn-house-ad{background:#0284c7;color:#ffffff;border:none;padding:0.6rem 1.4rem;border-radius:10px;font-weight:700;font-size:0.9rem;cursor:pointer;text-decoration:none;box-shadow:0 4px 12px rgba(2,132,199,0.25);transition:all 0.2s;white-space:nowrap}.btn-house-ad:hover{background:#0369a1;transform:translateY(-2px);box-shadow:0 6px 16px rgba(2,132,199,0.35)}html[data-theme="dark"] .exam-seo-content,html[data-theme="dark"] section.exam-seo-content,html[data-theme="dark"] #main-content .exam-seo-content{background-color:var(--dark-bg,#090d16) !important;background:var(--dark-bg,#090d16) !important;border-color:var(--dark-border) !important}html[data-theme="dark"] .exam-seo-content article,html[data-theme="dark"] .exam-seo-content .article-grid{background-color:transparent !important;background:transparent !important}html[data-theme="dark"] .exam-seo-content h2,html[data-theme="dark"] .exam-seo-content h3,html[data-theme="dark"] .exam-seo-content .article-grid h2,html[data-theme="dark"] .exam-seo-content .article-grid h3{color:#f8fafc !important}html[data-theme="dark"] .exam-seo-content p,html[data-theme="dark"] .exam-seo-content li,html[data-theme="dark"] .exam-seo-content .article-grid p,html[data-theme="dark"] .exam-seo-content .article-grid li{color:var(--dark-text-muted,#94a3b8) !important}html[data-theme="dark"] .exam-seo-content strong,html[data-theme="dark"] .exam-seo-content .article-grid strong{color:#ffffff !important}html[data-theme="dark"] .exam-seo-content a,html[data-theme="dark"] .exam-seo-content .article-grid a{color:#38bdf8 !important}html[data-theme="dark"] .library-header-premium h2,html[data-theme="dark"] .clinical-library-section h2,html[data-theme="dark"] .knowledge-hub h2,html[data-theme="dark"] .section-title{color:#ffffff !important}html[data-theme="dark"] .library-header-premium p,html[data-theme="dark"] .clinical-library-section p{color:var(--dark-text-muted,#94a3b8) !important}html[data-theme="dark"] .search-box-premium{background:#131d36 !important;border-color:#1e293b !important}html[data-theme="dark"] .search-box-premium input{color:#f8fafc !important}html[data-theme="dark"] .search-box-premium input::placeholder{color:#64748b !important}@media (max-width:640px){.quiz-sticky-hud{top:56px;padding:0.5rem 0.85rem;margin-bottom:1rem;gap:0.4rem;border-radius:12px;flex-direction:column;align-items:stretch;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}.hud-left{min-width:100%;max-width:100%;gap:0.25rem}.hud-progress-info{font-size:0.78rem}.hud-progress-bar{height:5px}.hud-right{width:100%;justify-content:space-between;gap:0.4rem}.hud-timer-pill{padding:0.25rem 0.65rem;font-size:0.78rem}.hud-score-pill{padding:0.25rem 0.55rem;font-size:0.78rem;gap:0.25rem}.hud-score-pill .score-lbl{display:none}.scroll-to-top{bottom:5.5rem !important;right:1.25rem !important;width:42px !important;height:42px !important}.question-container{padding:1.25rem 1rem !important;border-radius:16px !important}.question-text{font-size:1.15rem !important;line-height:1.5 !important}.question-action-bar{padding-bottom:2rem}.study-actions-row{gap:0.6rem;flex-wrap:wrap;justify-content:center}.study-btn.btn-nav{width:44px;height:44px;font-size:1.4rem;flex-shrink:0}.flashcard-leitner-controls{gap:0.4rem;padding:0.35rem 0.6rem}.leitner-btn{padding:0.5rem 0.85rem;font-size:0.82rem}.conf-pill{padding:0.5rem 0.85rem;font-size:0.82rem}}@media screen{.print-only{display:none !important}}@media print{.no-print,.site-header,.site-footer,.main-nav,.scroll-to-top,.cookie-consent,.sticky-cta,.theme-toggle-btn,.exam-mode-switch-wrap,.quiz-sticky-hud,.print-exam-header,.print-exam-cta,.header-actions,.breadcrumb-nav,.breadcrumb,[class*="ad-"],ins.adsbygoogle{display:none !important}.print-only{display:block !important}html,body{background:#ffffff !important;background-color:#ffffff !important;color:#000000 !important;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif !important;font-size:10pt !important;line-height:1.45 !important}.container,.print-exam-body{width:100% !important;max-width:100% !important;padding:0 !important;margin:0 !important}.print-doc-header{border-bottom:2px solid #000000;margin-bottom:1.5rem;padding-bottom:0.5rem}.print-doc-header h1{font-size:16pt !important;margin:0 0 0.25rem 0 !important;color:#000000 !important}.print-doc-header p{margin:0.2rem 0 !important;font-size:9.5pt !important;color:#333333 !important}.print-question{page-break-inside:avoid;margin-bottom:1rem;padding-bottom:0.75rem;border-bottom:1px dotted #cccccc}.print-q-text{font-weight:700;margin-bottom:0.35rem;font-size:10.5pt;color:#000000}.print-q-choices{padding-left:1.25rem}.print-choice{margin:0.25rem 0;font-size:10pt;color:#222222}.print-letter{font-weight:700;margin-right:0.35rem}.print-answer-key{page-break-before:always;padding-top:1rem}.print-answer-key h2{font-size:14pt;margin-bottom:0.75rem;border-bottom:1.5px solid #000;padding-bottom:0.35rem}.print-key-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:0.4rem 0.8rem;font-size:9.5pt;margin:1rem 0}.print-key-item{display:inline-block;padding:0.25rem 0.4rem;border:1px solid #dddddd}.print-key-note{font-size:8.5pt;color:#555555;margin-top:1rem}}html[data-theme="dark"] .info-callout{background:rgba(30,58,138,0.25) !important;border:1px solid rgba(59,130,246,0.4) !important;color:#e2e8f0 !important}html[data-theme="dark"] .info-callout strong{color:#93c5fd !important}html[data-theme="dark"] .domain-page-header h1{color:#f8fafc !important}html[data-theme="dark"] .domain-page-subtitle{color:var(--dark-text-muted,#94a3b8) !important}html[data-theme="dark"] .cta-banner.cta-light{background:#111827 !important;border:1px solid var(--dark-border,#2d3748) !important}html[data-theme="dark"] .cta-banner.cta-light h2{color:#f8fafc !important}html[data-theme="dark"] .cta-banner.cta-light p{color:var(--dark-text-muted,#94a3b8) !important}.quiz-header.quiz-header-single-row{display:flex !important;align-items:center !important;justify-content:space-between !important;gap:1.25rem !important;flex-wrap:nowrap !important;margin:0.25rem 0 1rem 0 !important;padding-bottom:0.85rem !important;border-bottom:1px solid rgba(226,232,240,0.8) !important}[data-theme="dark"] .quiz-header.quiz-header-single-row{border-bottom-color:rgba(51,65,85,0.6) !important}.quiz-header-left{display:flex !important;align-items:center !important;gap:0.85rem !important;flex-wrap:nowrap !important;min-width:0 !important}.quiz-title-group{display:inline-flex !important;align-items:center !important;gap:0.75rem !important;flex-wrap:nowrap !important}.quiz-header-left h1{margin:0 !important;font-size:1.55rem !important;font-weight:800 !important;line-height:1.2 !important;letter-spacing:-0.02em !important;white-space:nowrap !important;color:var(--deep-twilight,#03045e) !important}[data-theme="dark"] .quiz-header-left h1{color:#f8fafc !important}.quiz-mode-badge{display:inline-flex !important;align-items:center !important;background:#e0f2fe !important;color:#0369a1 !important;font-size:0.76rem !important;font-weight:700 !important;letter-spacing:0.04em !important;text-transform:uppercase !important;padding:0.25rem 0.7rem !important;border-radius:9999px !important;white-space:nowrap !important;border:1px solid rgba(186,230,253,0.9) !important}[data-theme="dark"] .quiz-mode-badge{background:rgba(14,165,233,0.15) !important;color:#38bdf8 !important;border-color:rgba(56,189,248,0.3) !important}.quiz-header-quicklinks{display:inline-flex !important;align-items:center !important;gap:0.4rem !important;font-size:0.8rem !important;padding:0.2rem 0.55rem !important;background:#f1f5f9 !important;border:1px solid #e2e8f0 !important;border-radius:6px !important;white-space:nowrap !important}[data-theme="dark"] .quiz-header-quicklinks{background:#0f172a !important;border-color:#1e293b !important}.quiz-quicklink{color:#475569 !important;text-decoration:none !important;font-weight:600 !important;transition:color 0.15s ease !important}.quiz-quicklink:hover{color:var(--primary,#0077b6) !important;text-decoration:underline !important}[data-theme="dark"] .quiz-quicklink{color:#94a3b8 !important}[data-theme="dark"] .quiz-quicklink:hover{color:#38bdf8 !important}.quicklink-sep{color:#cbd5e1 !important;font-size:0.75rem !important}[data-theme="dark"] .quicklink-sep{color:#475569 !important}.quiz-header-right{display:flex !important;align-items:center !important;gap:0.75rem !important;flex-shrink:0 !important}.quiz-header-single-row .exam-mode-switch-wrap{margin:0 !important;padding:0.3rem 0.6rem !important;gap:0.55rem !important;background:#f8fafc !important;border:1px solid #e2e8f0 !important;border-radius:10px !important;box-shadow:0 1px 3px rgba(0,0,0,0.04) !important}[data-theme="dark"] .quiz-header-single-row .exam-mode-switch-wrap{background:#0f172a !important;border-color:#1e293b !important;box-shadow:none !important}.quiz-header-single-row .mode-switch-label{font-size:0.78rem !important;font-weight:800 !important;letter-spacing:0.03em !important;color:#334155 !important}[data-theme="dark"] .quiz-header-single-row .mode-switch-label{color:#94a3b8 !important}.quiz-header-single-row .mode-toggle-group{background:#e2e8f0 !important;padding:2px !important;gap:2px !important;border-radius:8px !important}[data-theme="dark"] .quiz-header-single-row .mode-toggle-group{background:#1e293b !important}.quiz-header-single-row .mode-toggle-btn{padding:0.35rem 0.75rem !important;font-size:0.82rem !important;border-radius:6px !important;color:#334155 !important}[data-theme="dark"] .quiz-header-single-row .mode-toggle-btn{color:#94a3b8 !important}.quiz-header-single-row .btn-untimed{background:#ffffff !important;border:1px solid #cbd5e1 !important;color:#0f172a !important;border-radius:6px !important;padding:0.35rem 0.75rem !important;font-size:0.82rem !important;font-weight:700 !important;cursor:pointer !important;transition:all 0.15s ease !important;display:inline-flex !important;align-items:center !important;gap:0.3rem !important;box-shadow:0 1px 2px rgba(0,0,0,0.05) !important}.quiz-header-single-row .btn-untimed:hover,.quiz-header-single-row .btn-untimed.active{background:#0077b6 !important;border-color:#0077b6 !important;color:#ffffff !important;box-shadow:0 2px 8px rgba(0,119,182,0.25) !important}[data-theme="dark"] .quiz-header-single-row .btn-untimed{background:#1e293b !important;border-color:#334155 !important;color:#f1f5f9 !important;box-shadow:none !important}[data-theme="dark"] .quiz-header-single-row .btn-untimed:hover,[data-theme="dark"] .quiz-header-single-row .btn-untimed.active{background:#0284c7 !important;border-color:#0284c7 !important;color:#ffffff !important;box-shadow:0 2px 8px rgba(2,132,199,0.4) !important}@media (max-width:1080px){.quiz-header.quiz-header-single-row{gap:0.75rem !important}.quiz-header-left h1{font-size:1.35rem !important}}@media (max-width:820px){.quiz-header.quiz-header-single-row{flex-direction:column !important;align-items:stretch !important;gap:0.75rem !important}.quiz-header-left{justify-content:space-between !important;flex-wrap:wrap !important}.quiz-header-right{width:100% !important}.quiz-header-single-row .exam-mode-switch-wrap{width:100% !important;justify-content:space-between !important;flex-wrap:wrap !important}}.blog-reading-progress{position:fixed;top:0;left:0;width:0%;height:3.5px;background:linear-gradient(90deg,#0077b6,#00b4d8,#38bdf8);z-index:10000;transition:width 0.1s ease-out;box-shadow:0 0 8px rgba(0,180,216,0.6)}.blog-hero-section{position:relative;background:radial-gradient(1200px circle at 85% -10%,rgba(0,180,216,0.08) 0%,rgba(240,249,255,0.75) 45%,#ffffff 100%);background-color:#f8fafc;color:#03045e;padding:3rem 0 3.25rem;overflow:hidden;border-bottom:1px solid #e2e8f0}.blog-hero-section::before{content:'';position:absolute;top:-40%;right:-15%;width:550px;height:550px;background:radial-gradient(circle,rgba(0,119,182,0.06) 0%,rgba(255,255,255,0) 70%);pointer-events:none;z-index:1}.blog-hero-content{position:relative;z-index:2;max-width:980px}.blog-hero-section .blog-breadcrumb{display:inline-flex;align-items:center;gap:0.5rem;font-size:0.84rem;color:#64748b;margin-bottom:1.25rem;flex-wrap:wrap;background:#ffffff;border:1px solid #e2e8f0;padding:0.35rem 0.85rem;border-radius:9999px;box-shadow:0 1px 3px rgba(0,0,0,0.03)}.blog-hero-section .blog-breadcrumb a{color:#0077b6;text-decoration:none;font-weight:550;display:inline-flex;align-items:center;gap:0.35rem;transition:color 0.15s ease}.blog-hero-section .blog-breadcrumb a:hover{color:#023e8a;text-decoration:underline}.blog-hero-section .blog-breadcrumb .sep{color:#cbd5e1;font-size:0.75rem;user-select:none}.blog-hero-section .blog-breadcrumb .current{color:#1e293b;font-weight:600;max-width:450px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:inline-block;vertical-align:middle}.blog-hero-section .blog-hero-category{display:inline-flex;align-items:center;gap:0.45rem;background:rgba(0,119,182,0.08);color:#0077b6;border:1px solid rgba(0,119,182,0.22);box-shadow:0 1px 3px rgba(0,119,182,0.05);font-size:0.8125rem;font-weight:700;text-transform:uppercase;letter-spacing:0.04em;padding:0.38rem 0.95rem;border-radius:9999px;margin-bottom:1.15rem;transition:all 0.2s ease}.blog-hero-section .blog-hero-category:hover{background:rgba(0,119,182,0.12);border-color:rgba(0,119,182,0.35)}.blog-hero-section .blog-hero-title{font-family:'Outfit','Inter',system-ui,-apple-system,sans-serif;font-size:clamp(2.1rem,3.8vw,3rem);font-weight:800;line-height:1.22;letter-spacing:-0.025em;color:#03045e !important;margin:0 0 1.5rem;text-shadow:none}.blog-hero-section .blog-hero-meta{display:flex;align-items:center;gap:1.15rem;flex-wrap:wrap;font-size:0.9rem;color:#475569;background:#ffffff;border:1px solid #e2e8f0;padding:0.65rem 1.15rem;border-radius:14px;box-shadow:0 2px 8px rgba(0,0,0,0.03);width:fit-content;max-width:100%}.blog-hero-section .blog-meta-author-group{display:inline-flex;align-items:center;gap:0.6rem}.blog-hero-section .blog-author-avatar-chip{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,#0077b6 0%,#00b4d8 100%);color:#ffffff;font-size:0.78rem;font-weight:800;display:inline-flex;align-items:center;justify-content:center;box-shadow:0 2px 6px rgba(0,119,182,0.28);flex-shrink:0}.blog-hero-section .blog-author-info{display:inline-flex;align-items:center;gap:0.4rem}.blog-hero-section .blog-author-name{font-weight:700;color:#0f172a}.blog-hero-section .blog-author-cred{background:rgba(0,119,182,0.08);color:#0077b6;font-size:0.75rem;font-weight:700;padding:0.15rem 0.45rem;border-radius:6px;border:1px solid rgba(0,119,182,0.15)}.blog-hero-section .blog-meta-divider{width:1px;height:20px;background:#cbd5e1;flex-shrink:0}.blog-hero-section .blog-meta-stat{display:inline-flex;align-items:center;gap:0.4rem;color:#475569;font-weight:500}.blog-hero-section .blog-meta-stat .meta-icon{font-size:0.95rem}.blog-hero-section .blog-meta-verified{display:inline-flex;align-items:center;gap:0.4rem;background:#ecfdf5;color:#047857;border:1px solid #a7f3d0;border-radius:9999px;padding:0.28rem 0.8rem;font-size:0.8125rem;font-weight:700;box-shadow:0 1px 3px rgba(16,185,129,0.08)}.blog-hero-section .blog-meta-verified .verified-icon{display:inline-flex;align-items:center;justify-content:center;width:16px;height:16px;border-radius:50%;background:#10b981;color:#ffffff;font-size:0.65rem;font-weight:900}[data-theme="dark"] .blog-hero-section{background:radial-gradient(1000px circle at 80% -10%,rgba(56,189,248,0.12) 0%,rgba(15,23,42,0.9) 50%,#0b1120 100%) !important;background-color:#0b1120 !important;border-bottom:1px solid rgba(56,189,248,0.16) !important}[data-theme="dark"] .blog-hero-section .blog-breadcrumb{background:rgba(15,23,42,0.85);border-color:rgba(56,189,248,0.2);color:#94a3b8}[data-theme="dark"] .blog-hero-section .blog-breadcrumb a{color:#38bdf8}[data-theme="dark"] .blog-hero-section .blog-breadcrumb a:hover{color:#7dd3fc}[data-theme="dark"] .blog-hero-section .blog-breadcrumb .current{color:#f1f5f9}[data-theme="dark"] .blog-hero-section .blog-hero-category{background:rgba(56,189,248,0.14);color:#38bdf8;border-color:rgba(56,189,248,0.32)}[data-theme="dark"] .blog-hero-section .blog-hero-title{color:#f8fafc !important;text-shadow:0 2px 14px rgba(0,0,0,0.5)}[data-theme="dark"] .blog-hero-section .blog-hero-meta{background:rgba(15,23,42,0.85);border-color:rgba(56,189,248,0.2);color:#cbd5e1;box-shadow:0 4px 20px rgba(0,0,0,0.3)}[data-theme="dark"] .blog-hero-section .blog-author-name{color:#f8fafc}[data-theme="dark"] .blog-hero-section .blog-author-cred{background:rgba(56,189,248,0.15);color:#38bdf8;border-color:rgba(56,189,248,0.3)}[data-theme="dark"] .blog-hero-section .blog-meta-divider{background:rgba(255,255,255,0.15)}[data-theme="dark"] .blog-hero-section .blog-meta-stat{color:#94a3b8}[data-theme="dark"] .blog-hero-section .blog-meta-verified{background:rgba(16,185,129,0.16);color:#6ee7b7;border-color:rgba(16,185,129,0.35)}@media (max-width:768px){.blog-hero-section{padding:2.25rem 0 2.5rem}.blog-hero-section .blog-hero-title{font-size:1.85rem;line-height:1.25;margin-bottom:1.25rem}.blog-hero-section .blog-hero-meta{padding:0.6rem 0.85rem;gap:0.75rem;font-size:0.84rem}.blog-hero-section .blog-meta-divider{display:none}.blog-hero-section .blog-breadcrumb .current{max-width:220px}}.blog-single-layout{display:grid;grid-template-columns:minmax(0,1fr) 350px;gap:2.75rem;align-items:start;padding-top:2.5rem;padding-bottom:4rem}@media (max-width:991px){.blog-single-layout{grid-template-columns:1fr;gap:2.5rem}}.blog-main-content{min-width:0}.blog-featured-media{margin-bottom:2.25rem;border-radius:16px;overflow:hidden;box-shadow:0 8px 30px rgba(0,0,0,0.08);border:1px solid rgba(0,0,0,0.06);background:#f1f5f9}[data-theme="dark"] .blog-featured-media{border-color:var(--dark-border);box-shadow:0 8px 30px rgba(0,0,0,0.35);background:var(--dark-surface)}.blog-featured-media img{width:100%;max-height:440px;object-fit:cover;display:block;transition:transform 0.3s ease}.blog-trust-banner{display:flex;align-items:flex-start;gap:1rem;padding:1.25rem 1.5rem;border-radius:14px;background:#f0fdf4;border:1px solid #bbf7d0;margin-bottom:2.25rem;box-shadow:0 2px 10px rgba(22,101,52,0.04)}[data-theme="dark"] .blog-trust-banner{background:rgba(16,185,129,0.08) !important;border-color:rgba(16,185,129,0.28) !important}.blog-trust-icon{font-size:1.75rem;line-height:1;flex-shrink:0;margin-top:0.1rem}.blog-trust-title{font-size:1rem;font-weight:700;color:#166534;margin:0 0 0.25rem;display:flex;align-items:center;gap:0.5rem;flex-wrap:wrap}[data-theme="dark"] .blog-trust-title{color:#86efac !important}.blog-trust-badge{font-size:0.72rem;font-weight:700;padding:0.2rem 0.6rem;border-radius:9999px;background:#22c55e;color:#ffffff;letter-spacing:0.03em}.blog-trust-desc{font-size:0.9rem;color:#166534;margin:0;line-height:1.55;opacity:0.9}[data-theme="dark"] .blog-trust-desc{color:#d1fae5 !important}.blog-article-body{font-size:1.125rem;line-height:1.85;color:#1e293b;word-break:break-word}[data-theme="dark"] .blog-article-body{color:#e2e8f0 !important}.blog-article-body p{margin-bottom:1.6rem}.blog-article-body h2{font-size:1.75rem;font-weight:700;color:#0f172a;letter-spacing:-0.02em;margin-top:2.75rem;margin-bottom:1.1rem;padding-left:0.85rem;border-left:4px solid #0077b6;scroll-margin-top:100px}[data-theme="dark"] .blog-article-body h2{color:#f8fafc !important;border-left-color:#38bdf8 !important}.blog-article-body h3{font-size:1.35rem;font-weight:650;color:#1e293b;margin-top:2.2rem;margin-bottom:0.9rem;scroll-margin-top:100px}[data-theme="dark"] .blog-article-body h3{color:#f1f5f9 !important}.blog-article-body a{color:#0077b6;text-decoration:underline;text-underline-offset:3px;transition:color 0.15s ease}.blog-article-body a:hover{color:#0284c7}[data-theme="dark"] .blog-article-body a{color:#38bdf8}.blog-article-body ul,.blog-article-body ol{margin-bottom:1.75rem;padding-left:1.5rem}.blog-article-body li{margin-bottom:0.65rem;line-height:1.75}.blog-article-body blockquote{background:rgba(0,119,182,0.05);border-left:4px solid #0077b6;border-radius:0 12px 12px 0;padding:1.25rem 1.5rem;margin:2rem 0;font-style:italic;color:#334155}[data-theme="dark"] .blog-article-body blockquote{background:rgba(56,189,248,0.08) !important;border-left-color:#38bdf8 !important;color:#cbd5e1 !important}.blog-article-body strong{color:#0f172a;font-weight:650}[data-theme="dark"] .blog-article-body strong{color:#ffffff}.blog-lead-magnet{margin:3rem 0;padding:2rem;border-radius:16px;background:linear-gradient(135deg,#f0fdfa 0%,#e0f2fe 100%);border:1px solid #99f6e4;box-shadow:0 4px 20px rgba(15,118,110,0.06)}[data-theme="dark"] .blog-lead-magnet{background:linear-gradient(135deg,#092026 0%,#0d1e38 100%) !important;border-color:rgba(20,184,166,0.35) !important;box-shadow:0 4px 20px rgba(0,0,0,0.3) !important}.blog-lead-magnet-icon{font-size:2.25rem;line-height:1;margin-bottom:0.75rem}.blog-lead-magnet h4{font-size:1.25rem;font-weight:750;color:#0f766e;margin:0 0 0.4rem}[data-theme="dark"] .blog-lead-magnet h4{color:#2dd4bf !important}.blog-lead-magnet p{font-size:0.95rem;color:#334155;margin:0 0 1.25rem}[data-theme="dark"] .blog-lead-magnet p{color:#94a3b8 !important}.blog-lead-magnet-form{display:flex;gap:0.75rem;max-width:520px;flex-wrap:wrap}.blog-lead-magnet-input{flex:1 1 240px;padding:0.75rem 1rem;font-size:0.95rem;border-radius:10px;border:1px solid #cbd5e1;background:#ffffff;color:#0f172a;outline:none;transition:border-color 0.2s,box-shadow 0.2s}.blog-lead-magnet-input:focus{border-color:#0077b6;box-shadow:0 0 0 3px rgba(0,119,182,0.15)}[data-theme="dark"] .blog-lead-magnet-input{background:#1e293b !important;border-color:var(--dark-border) !important;color:#f8fafc !important}.blog-lead-magnet-btn{padding:0.75rem 1.5rem;font-size:0.95rem;font-weight:700;border-radius:10px;background:#0077b6;color:#ffffff;border:none;cursor:pointer;transition:background 0.2s ease,transform 0.1s ease;white-space:nowrap}.blog-lead-magnet-btn:hover{background:#0284c7;transform:translateY(-1px)}.blog-references-card{margin:3rem 0;padding:1.5rem 1.75rem;border-radius:14px;background:#f8fafc;border:1px solid #e2e8f0}[data-theme="dark"] .blog-references-card{background:var(--dark-surface) !important;border-color:var(--dark-border) !important}.blog-references-card h5{font-size:1rem;font-weight:700;color:#0f172a;margin:0 0 0.85rem}[data-theme="dark"] .blog-references-card h5{color:#f8fafc !important}.blog-references-content{font-size:0.875rem;line-height:1.7;color:#64748b;white-space:pre-line}[data-theme="dark"] .blog-references-content{color:#94a3b8 !important}.blog-bottom-cta{margin-top:3.5rem;padding:2.5rem 2rem;border-radius:20px;text-align:center;background:linear-gradient(135deg,#03045e 0%,#0077b6 100%);color:#ffffff;box-shadow:0 10px 30px rgba(0,119,182,0.2)}[data-theme="dark"] .blog-bottom-cta{background:linear-gradient(135deg,#0f172a 0%,#0c2b45 100%) !important;border:1px solid var(--dark-border)}.blog-bottom-cta h3{font-size:1.65rem;font-weight:800;margin:0 0 0.5rem}.blog-bottom-cta p{font-size:1rem;color:rgba(255,255,255,0.85);max-width:540px;margin:0 auto 1.5rem}.blog-bottom-cta .btn{padding:0.85rem 2rem;font-size:1rem;font-weight:700;border-radius:12px;background:#ffffff;color:#0077b6 !important;text-decoration:none;display:inline-block;box-shadow:0 4px 15px rgba(0,0,0,0.15);transition:transform 0.2s ease,box-shadow 0.2s ease}.blog-bottom-cta .btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,0,0,0.25)}.blog-sidebar{position:sticky;top:90px;z-index:10;display:flex;flex-direction:column;gap:1.5rem}.blog-sidebar-card{background:#ffffff;border:1px solid #e2e8f0;border-radius:14px;padding:1.25rem;box-shadow:0 2px 10px rgba(0,0,0,0.03);transition:border-color 0.2s ease,box-shadow 0.2s ease}[data-theme="dark"] .blog-sidebar-card{background:var(--dark-surface) !important;border-color:var(--dark-border) !important;box-shadow:0 4px 20px rgba(0,0,0,0.25) !important}.blog-author-widget{display:flex;flex-direction:column;gap:1rem}.blog-author-header{display:flex;align-items:center;gap:0.85rem}.blog-author-avatar{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,#0077b6,#00b4d8);color:#ffffff;display:flex;align-items:center;justify-content:center;font-size:1.25rem;font-weight:700;box-shadow:0 2px 8px rgba(0,119,182,0.25);flex-shrink:0}.blog-author-info{min-width:0}.blog-author-name{font-size:0.95rem;font-weight:700;color:#0f172a;margin:0;line-height:1.3}[data-theme="dark"] .blog-author-name{color:#f8fafc !important}.blog-author-role{font-size:0.8125rem;color:#64748b;margin:0}[data-theme="dark"] .blog-author-role{color:#94a3b8 !important}.blog-review-meta{padding-top:0.75rem;border-top:1px solid #f1f5f9;font-size:0.8125rem;color:#475569}[data-theme="dark"] .blog-review-meta{border-top-color:var(--dark-border) !important;color:#94a3b8 !important}.blog-registry-link{display:inline-flex;align-items:center;gap:0.35rem;font-size:0.8125rem;font-weight:600;color:#0077b6;text-decoration:none;margin-top:0.5rem;transition:color 0.15s ease}.blog-registry-link:hover{color:#0284c7;text-decoration:underline}[data-theme="dark"] .blog-registry-link{color:#38bdf8 !important}.blog-toc-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:0.85rem;padding-bottom:0.65rem;border-bottom:1px solid #f1f5f9}[data-theme="dark"] .blog-toc-header{border-bottom-color:var(--dark-border) !important}.blog-toc-title{font-size:0.9375rem;font-weight:750;color:#0f172a;margin:0;display:flex;align-items:center;gap:0.4rem}[data-theme="dark"] .blog-toc-title{color:#f8fafc !important}.blog-toc-badge{font-size:0.75rem;font-weight:600;padding:0.15rem 0.5rem;border-radius:9999px;background:rgba(0,119,182,0.08);color:#0077b6}[data-theme="dark"] .blog-toc-badge{background:rgba(56,189,248,0.15) !important;color:#38bdf8 !important}.blog-toc-nav{max-height:380px;overflow-y:auto;scrollbar-width:thin;padding-right:0.25rem}.blog-toc-nav::-webkit-scrollbar{width:4px}.blog-toc-nav::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:4px}[data-theme="dark"] .blog-toc-nav::-webkit-scrollbar-thumb{background:var(--dark-border)}.blog-toc-list{list-style:none;padding:0;margin:0}.blog-toc-item{margin-bottom:0.35rem}.blog-toc-item.level-3{padding-left:1rem}.blog-toc-link{display:block;padding:0.35rem 0.5rem;border-radius:6px;font-size:0.85rem;line-height:1.45;color:#64748b;text-decoration:none;border-left:2px solid transparent;transition:all 0.15s ease}.blog-toc-link:hover{color:#0077b6;background:rgba(0,119,182,0.05)}[data-theme="dark"] .blog-toc-link{color:#94a3b8}[data-theme="dark"] .blog-toc-link:hover{color:#38bdf8;background:rgba(56,189,248,0.08)}.blog-toc-link.active{color:#0077b6 !important;font-weight:700 !important;border-left-color:#0077b6 !important;background:rgba(0,119,182,0.08) !important;padding-left:0.65rem !important}[data-theme="dark"] .blog-toc-link.active{color:#38bdf8 !important;border-left-color:#38bdf8 !important;background:rgba(56,189,248,0.12) !important}.blog-exam-widget{background:linear-gradient(135deg,#0077b6 0%,#0284c7 100%);color:#ffffff;border-radius:14px;padding:1.4rem;text-align:center;box-shadow:0 4px 15px rgba(0,119,182,0.25)}[data-theme="dark"] .blog-exam-widget{background:linear-gradient(135deg,#0c2b45 0%,#0369a1 100%) !important;border:1px solid rgba(56,189,248,0.3)}.blog-exam-widget h5{font-size:1.1rem;font-weight:800;margin:0 0 0.4rem;color:#ffffff}.blog-exam-widget p{font-size:0.85rem;color:rgba(255,255,255,0.9);margin:0 0 1rem;line-height:1.45}.blog-exam-btn{display:block;width:100%;padding:0.65rem 1rem;border-radius:10px;background:#ffffff;color:#0077b6 !important;font-size:0.875rem;font-weight:750;text-decoration:none;box-shadow:0 2px 8px rgba(0,0,0,0.1);transition:transform 0.15s ease,box-shadow 0.15s ease}.blog-exam-btn:hover{transform:translateY(-1px);box-shadow:0 4px 12px rgba(0,0,0,0.2)}.blog-recent-widget h5{font-size:0.9375rem;font-weight:750;color:#0f172a;margin:0 0 0.85rem;padding-bottom:0.5rem;border-bottom:1px solid #f1f5f9}[data-theme="dark"] .blog-recent-widget h5{color:#f8fafc !important;border-bottom-color:var(--dark-border) !important}.blog-recent-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:0.85rem}.blog-recent-item a{display:block;font-size:0.9rem;font-weight:600;color:#0f172a;text-decoration:none;line-height:1.4;transition:color 0.15s ease}.blog-recent-item a:hover{color:#0077b6}[data-theme="dark"] .blog-recent-item a{color:#f1f5f9}[data-theme="dark"] .blog-recent-item a:hover{color:#38bdf8}.blog-recent-date{font-size:0.775rem;color:#94a3b8;margin-top:0.25rem;display:block}.blog-sidebar-ad{border-radius:12px;overflow:hidden;text-align:center}.blog-index-hero{background:radial-gradient(900px circle at 50% -10%,rgba(0,180,216,0.12) 0%,rgba(240,248,255,0.6) 40%,#ffffff 100%);padding:3rem 0 2.75rem;border-bottom:1px solid #e2e8f0;position:relative}.blog-hero-breadcrumb{margin-bottom:1.5rem}.blog-hero-breadcrumb .breadcrumb{display:inline-flex;align-items:center;gap:0.5rem;background:#ffffff;border:1px solid #e2e8f0;padding:0.4rem 0.9rem;border-radius:9999px;box-shadow:0 1px 3px rgba(0,0,0,0.03);font-size:0.8125rem;list-style:none}.blog-hero-breadcrumb a{color:#64748b;text-decoration:none;display:inline-flex;align-items:center;gap:0.35rem;transition:color 0.15s ease}.blog-hero-breadcrumb a:hover{color:#0077b6}.blog-hero-breadcrumb .breadcrumb-separator{color:#cbd5e1;user-select:none}.blog-hero-breadcrumb .active{color:#03045e;font-weight:600}.blog-hero-badge{display:inline-flex;align-items:center;gap:0.5rem;background:#ffffff;border:1px solid #bae6fd;box-shadow:0 2px 10px rgba(0,119,182,0.06);padding:0.35rem 0.95rem;border-radius:9999px;font-size:0.8125rem;font-weight:650;color:#0369a1;margin-bottom:1.25rem}.blog-hero-badge .badge-verified{background:#dcfce7;color:#15803d;padding:0.15rem 0.55rem;border-radius:9999px;font-size:0.72rem;font-weight:700;margin-left:0.25rem}.blog-index-hero .blog-hero-title{font-size:clamp(2rem,3.5vw,2.75rem);font-weight:800;color:#03045e;letter-spacing:-0.03em;margin:0 0 0.85rem;line-height:1.2}.blog-index-hero .blog-hero-subtitle{font-size:1.125rem;color:#475569;max-width:680px;margin:0 auto 2rem;line-height:1.6}.blog-search-container{max-width:620px;margin:0 auto;position:relative}.blog-search-box{position:relative;display:flex;align-items:center;background:#ffffff;border:1.5px solid #cbd5e1;border-radius:14px;box-shadow:0 4px 20px rgba(3,4,94,0.06);transition:all 0.2s ease}.blog-search-box:focus-within{border-color:#0077b6;box-shadow:0 0 0 4px rgba(0,119,182,0.12),0 8px 25px rgba(0,119,182,0.08)}.blog-search-box .search-icon{position:absolute;left:1.1rem;color:#94a3b8;pointer-events:none}.blog-search-input{width:100%;padding:0.95rem 2.8rem 0.95rem 3.1rem;font-size:1rem;border:none;background:transparent;color:#0f172a;outline:none;font-family:inherit}.blog-search-input::placeholder{color:#94a3b8}.blog-search-clear{position:absolute;right:0.9rem;width:28px;height:28px;border-radius:50%;background:#f1f5f9;border:none;color:#64748b;font-size:0.85rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all 0.15s ease}.blog-search-clear:hover{background:#e2e8f0;color:#0f172a}.blog-search-meta{font-size:0.85rem;color:#64748b;margin-top:0.75rem;text-align:center;font-weight:500}.blog-search-meta span{font-weight:700;color:#03045e}.blog-index-body{background:#f8fafc;padding:2rem 0 4rem;min-height:60vh}.blog-filter-section{margin-bottom:2.25rem}.blog-filter-header{font-size:0.875rem;font-weight:700;color:#475569;margin-bottom:0.75rem;display:flex;align-items:center;gap:0.4rem}.blog-category-pills{display:flex;flex-wrap:wrap;gap:0.55rem;align-items:center}.category-pill{display:inline-flex;align-items:center;gap:0.45rem;padding:0.55rem 1rem;border-radius:9999px;font-size:0.875rem;font-weight:600;border:1px solid #e2e8f0;background:#ffffff;color:#334155;cursor:pointer;transition:all 0.18s cubic-bezier(0.16,1,0.3,1);box-shadow:0 1px 3px rgba(0,0,0,0.03);user-select:none}.category-pill:hover{border-color:#0077b6;color:#0077b6;background:#f0f9ff;transform:translateY(-1px)}.category-pill.active{background:linear-gradient(135deg,#0077b6,#0096c7);color:#ffffff;border-color:transparent;box-shadow:0 4px 14px rgba(0,119,182,0.28)}.category-pill .pill-count{font-size:0.75rem;padding:0.1rem 0.5rem;border-radius:9999px;background:#f1f5f9;color:#475569;font-weight:700}.category-pill.active .pill-count{background:rgba(255,255,255,0.25);color:#ffffff}.blog-spotlight-section{margin-bottom:2.75rem}.blog-spotlight-card{display:grid;grid-template-columns:280px minmax(0,1fr);gap:2rem;background:#ffffff;border:1px solid #e2e8f0;border-radius:20px;box-shadow:0 8px 30px rgba(3,4,94,0.06);padding:1.75rem;transition:transform 0.2s ease,box-shadow 0.2s ease,border-color 0.2s ease;position:relative;overflow:hidden}.blog-spotlight-card:hover{transform:translateY(-3px);box-shadow:0 14px 35px rgba(0,119,182,0.12);border-color:#90e0ef}.spotlight-visual{border-radius:14px;background:linear-gradient(135deg,#03045e,#0077b6);display:flex;align-items:center;justify-content:center;min-height:220px;position:relative;overflow:hidden}.spotlight-visual-inner{text-align:center;color:#ffffff}.spotlight-icon{font-size:4rem;line-height:1;margin-bottom:0.75rem;filter:drop-shadow(0 4px 10px rgba(0,0,0,0.25))}.spotlight-accent-tag{font-size:0.75rem;font-weight:700;text-transform:uppercase;letter-spacing:0.08em;background:rgba(255,255,255,0.2);backdrop-filter:blur(8px);padding:0.3rem 0.75rem;border-radius:9999px;border:1px solid rgba(255,255,255,0.3)}.spotlight-content{display:flex;flex-direction:column;justify-content:center}.spotlight-meta-row{display:flex;align-items:center;gap:0.75rem;flex-wrap:wrap;margin-bottom:0.85rem;font-size:0.8125rem;font-weight:600}.spotlight-category-badge{padding:0.25rem 0.65rem;border-radius:6px;font-weight:700}.spotlight-badge-flag{background:#fef3c7;color:#b45309;padding:0.25rem 0.65rem;border-radius:6px;font-weight:700}.spotlight-read-time{color:#64748b;display:inline-flex;align-items:center;gap:0.35rem;margin-left:auto}.spotlight-title{font-size:1.55rem;font-weight:800;line-height:1.3;margin:0 0 0.85rem;letter-spacing:-0.015em}.spotlight-title a{color:#03045e;text-decoration:none;transition:color 0.15s ease}.spotlight-title a:hover{color:#0077b6}.spotlight-excerpt{font-size:0.975rem;color:#475569;line-height:1.65;margin:0 0 1.25rem}.spotlight-footer{display:flex;align-items:center;justify-content:space-between;border-top:1px solid #f1f5f9;padding-top:1.1rem;gap:1rem;flex-wrap:wrap;margin-top:auto}.spotlight-author-group{display:flex;align-items:center;gap:0.75rem}.author-avatar-chip{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#0077b6,#0096c7);color:#ffffff;font-weight:800;font-size:0.85rem;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px rgba(0,119,182,0.2)}.author-details .author-name{font-size:0.875rem;font-weight:700;color:#0f172a}.author-details .author-role{font-size:0.775rem;color:#64748b}.spotlight-cta-btn{display:inline-flex;align-items:center;gap:0.5rem;background:#0077b6;color:#ffffff !important;font-weight:700;font-size:0.925rem;padding:0.65rem 1.25rem;border-radius:10px;text-decoration:none;transition:all 0.15s ease}.spotlight-cta-btn:hover{background:#0284c7;transform:translateY(-1px);box-shadow:0 4px 14px rgba(0,119,182,0.25)}.spotlight-cta-btn .arrow{transition:transform 0.15s ease}.spotlight-cta-btn:hover .arrow{transform:translateX(3px)}.blog-grid-header{display:flex;align-items:baseline;justify-content:space-between;border-bottom:2px solid #e2e8f0;padding-bottom:0.75rem;margin-bottom:1.75rem;flex-wrap:wrap;gap:0.5rem}.blog-grid-heading{font-size:1.4rem;font-weight:800;color:#03045e;margin:0;letter-spacing:-0.015em}.blog-grid-view-note{font-size:0.85rem;color:#64748b;font-weight:500}.blog-cards-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1.75rem;margin-bottom:3.5rem}.blog-card{background:#ffffff;border:1px solid #e2e8f0;border-radius:16px;overflow:hidden;display:flex;flex-direction:column;transition:transform 0.22s cubic-bezier(0.16,1,0.3,1),box-shadow 0.22s ease,border-color 0.22s ease;box-shadow:0 4px 16px rgba(3,4,94,0.04);position:relative}.blog-card:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(0,119,182,0.1);border-color:#90e0ef}.blog-card-media{height:105px;position:relative;overflow:hidden}.blog-card-gradient{width:100%;height:100%;display:flex;align-items:center;justify-content:center;padding:1rem;position:relative}.blog-card-icon-pill{display:inline-flex;align-items:center;gap:0.45rem;background:rgba(255,255,255,0.25);backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,0.4);padding:0.35rem 0.85rem;border-radius:9999px;color:#ffffff;font-size:0.8125rem;font-weight:700;text-shadow:0 1px 2px rgba(0,0,0,0.15)}.cat-exam-prep{background:linear-gradient(135deg,#f59e0b,#d97706)}.cat-measurement{background:linear-gradient(135deg,#0284c7,#03045e)}.cat-assessment{background:linear-gradient(135deg,#10b981,#047857)}.cat-skill-acq{background:linear-gradient(135deg,#8b5cf6,#4f46e5)}.cat-behavior-red{background:linear-gradient(135deg,#f43f5e,#be123c)}.cat-ethics{background:linear-gradient(135deg,#0f766e,#115e59)}.cat-general{background:linear-gradient(135deg,#0077b6,#03045e)}.blog-card-body{padding:1.35rem;display:flex;flex-direction:column;flex-grow:1}.blog-card-top-meta{display:flex;align-items:center;justify-content:space-between;margin-bottom:0.75rem;font-size:0.8rem;font-weight:600}.blog-card-cat-badge{padding:0.2rem 0.55rem;border-radius:6px;font-weight:700;font-size:0.75rem}.blog-card-read-time{color:#64748b;display:inline-flex;align-items:center;gap:0.25rem}.blog-card-title{font-size:1.15rem;font-weight:750;line-height:1.4;margin:0 0 0.65rem}.blog-card-title a{color:#03045e;text-decoration:none;transition:color 0.15s ease;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.blog-card:hover .blog-card-title a{color:#0077b6}.blog-card-excerpt{font-size:0.875rem;color:#475569;line-height:1.6;margin:0 0 1.25rem;flex-grow:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.blog-card-footer{display:flex;align-items:center;justify-content:space-between;border-top:1px solid #f1f5f9;padding-top:0.9rem;margin-top:auto}.author-micro-card{display:flex;align-items:center;gap:0.65rem}.author-monogram{width:32px;height:32px;border-radius:50%;background:#e0f2fe;color:#03045e;font-weight:750;font-size:0.75rem;display:flex;align-items:center;justify-content:center}.author-info .author-name-text{font-size:0.8rem;font-weight:700;color:#1e293b;line-height:1.2}.author-info .post-date-text{font-size:0.725rem;color:#94a3b8}.blog-card-link-arrow{width:32px;height:32px;border-radius:50%;background:#f8fafc;border:1px solid #e2e8f0;display:flex;align-items:center;justify-content:center;color:#0077b6;transition:all 0.18s ease;flex-shrink:0}.blog-card:hover .blog-card-link-arrow{background:#0077b6;color:#ffffff;border-color:#0077b6;transform:translateX(2px)}.blog-search-empty{text-align:center;padding:3.5rem 1.5rem;background:#ffffff;border:1.5px dashed #cbd5e1;border-radius:16px;margin:2rem 0 3.5rem}.search-empty-icon{font-size:3rem;margin-bottom:0.75rem}.search-empty-title{font-size:1.35rem;font-weight:750;color:#03045e;margin-bottom:0.5rem}.search-empty-desc{font-size:0.95rem;color:#64748b;max-width:480px;margin:0 auto 1.5rem}.blog-study-cta-card{background:linear-gradient(135deg,#03045e 0%,#0077b6 100%);border-radius:20px;padding:2.5rem;color:#ffffff;display:flex;align-items:center;justify-content:space-between;gap:2rem;margin-bottom:3.5rem;box-shadow:0 10px 30px rgba(3,4,94,0.15);flex-wrap:wrap}.cta-pill{display:inline-block;background:rgba(255,255,255,0.18);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,0.3);border-radius:9999px;padding:0.3rem 0.8rem;font-size:0.8rem;font-weight:700;margin-bottom:0.85rem;letter-spacing:0.04em}.cta-card-title{font-size:1.75rem;font-weight:800;margin:0 0 0.65rem;color:#ffffff;letter-spacing:-0.015em}.cta-card-desc{font-size:1.05rem;color:#e0f2fe;max-width:600px;margin:0 0 1.5rem;line-height:1.6}.cta-card-actions{display:flex;gap:1rem;flex-wrap:wrap}.cta-btn-primary{background:#00b4d8;color:#03045e !important;font-weight:800;font-size:0.95rem;padding:0.75rem 1.4rem;border-radius:10px;text-decoration:none;transition:all 0.15s ease;display:inline-flex;align-items:center;gap:0.45rem}.cta-btn-primary:hover{background:#90e0ef;color:#03045e !important;transform:translateY(-1px);box-shadow:0 4px 15px rgba(0,180,216,0.4)}.cta-btn-secondary{background:rgba(255,255,255,0.12);color:#ffffff !important;border:1px solid rgba(255,255,255,0.3);font-weight:700;font-size:0.95rem;padding:0.75rem 1.4rem;border-radius:10px;text-decoration:none;transition:all 0.15s ease}.cta-btn-secondary:hover{background:rgba(255,255,255,0.22);color:#ffffff !important}.cta-card-badge-box{background:rgba(255,255,255,0.1);border:1px solid rgba(255,255,255,0.2);border-radius:16px;padding:1.5rem 2rem;text-align:center;min-width:170px;backdrop-filter:blur(10px)}.badge-stat{font-size:2.75rem;font-weight:900;line-height:1;color:#90e0ef}.badge-stat-label{font-size:0.85rem;font-weight:700;color:#ffffff;margin-top:0.35rem}.badge-stat-sub{font-size:0.75rem;color:#caf0f8;margin-top:0.2rem}@media (max-width:991px){.blog-spotlight-card{grid-template-columns:1fr;gap:1.5rem}.spotlight-visual{min-height:160px}.cta-card-badge-box{width:100%}}@media (max-width:576px){.blog-cards-grid{grid-template-columns:1fr}.blog-index-hero .blog-hero-title{font-size:1.85rem}.blog-category-pills{overflow-x:auto;flex-wrap:nowrap;padding-bottom:0.5rem;-webkit-overflow-scrolling:touch}.category-pill{white-space:nowrap;flex-shrink:0}}.rationale-guide-callout{margin-top:1.15rem;padding:0.85rem 1.1rem;background:#f0fdfa;border:1.5px solid #99f6e4;border-radius:12px;box-shadow:0 2px 10px rgba(15,118,110,0.05)}.rationale-guide-callout .callout-header{margin-bottom:0.35rem}.rationale-guide-callout .callout-badge{font-size:0.725rem;font-weight:750;color:#0f766e;background:#ccfbf1;padding:0.2rem 0.6rem;border-radius:9999px;text-transform:uppercase;letter-spacing:0.04em;display:inline-block}.rationale-guide-callout .callout-content{font-size:0.875rem;color:#334155;line-height:1.5}.rationale-guide-callout .callout-prompt{font-weight:600;color:#0f766e}.rationale-guide-callout .callout-link{color:#0077b6;font-weight:750;text-decoration:underline;text-underline-offset:3px;display:inline-flex;align-items:center;gap:0.25rem;transition:color 0.15s ease}.rationale-guide-callout .callout-link:hover{color:#0284c7}.rationale-guide-callout .callout-link .arrow{transition:transform 0.15s ease}.rationale-guide-callout .callout-link:hover .arrow{transform:translateX(3px)}.faq-accordion{display:flex;flex-direction:column;gap:0.85rem;margin-top:1.5rem}.faq-item{border:1px solid #e2e8f0;border-radius:14px;background:#ffffff;overflow:hidden;transition:border-color 0.25s ease,box-shadow 0.25s ease,background-color 0.25s ease;box-shadow:0 2px 8px rgba(0,0,0,0.03)}.faq-item:hover{border-color:#90e0ef;box-shadow:0 6px 18px rgba(0,119,182,0.08)}.faq-item.active{border-color:#0077b6;box-shadow:0 8px 24px rgba(0,119,182,0.12)}.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;padding:1.2rem 1.4rem;background:none;border:none;text-align:left;cursor:pointer;font-family:inherit;gap:1.25rem;transition:background 0.15s ease}.faq-question:focus-visible{outline:2px solid #0077b6;outline-offset:-2px}.faq-q-text,.faq-question h3{font-size:1.05rem;font-weight:700;color:#03045e;margin:0;line-height:1.4;letter-spacing:-0.01em;flex:1}.faq-item.active .faq-q-text,.faq-item.active .faq-question h3{color:#0077b6}.faq-icon{width:32px;height:32px;border-radius:50%;background:#f0f9ff;color:#0077b6;font-size:1.3rem;font-weight:700;line-height:1;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:transform 0.25s cubic-bezier(0.34,1.56,0.64,1),background-color 0.2s ease,color 0.2s ease}.faq-icon:empty::before{content:"+";display:block;line-height:1}.faq-item.active .faq-icon{background:#0077b6;color:#ffffff;transform:rotate(45deg)}.faq-answer{display:none;padding:0 1.5rem 1.35rem;color:#334155;font-size:0.98rem;line-height:1.7;border-top:1px solid #f1f5f9;padding-top:1rem}.faq-item.active .faq-answer{display:block;animation:faqAnswerIn 0.22s ease-out forwards}@keyframes faqAnswerIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.faq-answer p{margin:0 0 0.75rem}.faq-answer p:last-child{margin-bottom:0}.faq-toolbar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:0.75rem;margin-top:1.5rem}.faq-count{font-size:0.88rem;font-weight:700;color:#0077b6;display:inline-flex;align-items:center;gap:0.4rem}.faq-expand-all-btn{display:inline-flex;align-items:center;gap:0.45rem;background:#ffffff;border:1px solid #e2e8f0;color:#03045e;font-size:0.86rem;font-weight:700;padding:0.45rem 1rem;border-radius:8px;cursor:pointer;transition:all 0.2s ease}.faq-expand-all-btn:hover{background:#0077b6;color:#ffffff;border-color:#0077b6;transform:translateY(-1px);box-shadow:0 4px 12px rgba(0,119,182,0.2)}[data-theme="dark"] .faq-item{background:#111a2e;border-color:#1e293b;box-shadow:0 4px 16px rgba(0,0,0,0.35)}[data-theme="dark"] .faq-item:hover{border-color:#0284c7;box-shadow:0 8px 24px rgba(0,0,0,0.45)}[data-theme="dark"] .faq-item.active{border-color:#38bdf8;background:#14213d}[data-theme="dark"] .faq-q-text,[data-theme="dark"] .faq-question h3{color:#f8fafc}[data-theme="dark"] .faq-item.active .faq-q-text,[data-theme="dark"] .faq-item.active .faq-question h3{color:#38bdf8}[data-theme="dark"] .faq-icon{background:#1e293b;color:#38bdf8}[data-theme="dark"] .faq-item.active .faq-icon{background:#0284c7;color:#ffffff}[data-theme="dark"] .faq-answer{color:#cbd5e1;border-top-color:#1e293b}[data-theme="dark"] .faq-answer strong{color:#f8fafc}[data-theme="dark"] .faq-answer a{color:#38bdf8}[data-theme="dark"] .faq-expand-all-btn{background:#1e293b;border-color:#334155;color:#38bdf8}[data-theme="dark"] .faq-expand-all-btn:hover{background:#0284c7;color:#ffffff;border-color:#0284c7}[data-theme="dark"] .faq-count{color:#38bdf8}.cheat-sheet-hero{background:radial-gradient(900px circle at 50% -10%,rgba(0,180,216,0.12) 0%,rgba(240,248,255,0.6) 40%,#ffffff 100%);padding:3rem 0 2.5rem;border-bottom:1px solid #e2e8f0;text-align:center}.cheat-sheet-breadcrumb .breadcrumb{display:inline-flex;align-items:center;gap:0.5rem;background:#ffffff;border:1px solid #e2e8f0;padding:0.4rem 0.9rem;border-radius:9999px;box-shadow:0 1px 3px rgba(0,0,0,0.03);font-size:0.8125rem;list-style:none;margin-bottom:1.5rem}.cheat-sheet-breadcrumb a{color:#64748b;text-decoration:none;display:inline-flex;align-items:center;gap:0.35rem}.cheat-sheet-breadcrumb a:hover{color:#0077b6}.cheat-sheet-breadcrumb .sep{color:#cbd5e1}.cheat-sheet-breadcrumb .active{color:#03045e;font-weight:600}.cheat-sheet-hero-badge{display:inline-flex;align-items:center;gap:0.5rem;background:#ffffff;border:1px solid #bae6fd;box-shadow:0 2px 10px rgba(0,119,182,0.06);padding:0.35rem 0.95rem;border-radius:9999px;font-size:0.8125rem;font-weight:650;color:#0369a1;margin-bottom:1.25rem}.cheat-sheet-hero-badge .badge-verified{background:#dcfce7;color:#15803d;padding:0.15rem 0.55rem;border-radius:9999px;font-size:0.72rem;font-weight:700}.cheat-sheet-title{font-size:clamp(2rem,3.5vw,2.75rem);font-weight:800;color:#03045e;letter-spacing:-0.03em;margin:0 0 0.85rem;line-height:1.2}.cheat-sheet-subtitle{font-size:1.125rem;color:#475569;max-width:720px;margin:0 auto 2rem;line-height:1.6}.cheat-sheet-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.btn-print-cheat{background:#03045e;color:#ffffff;padding:0.75rem 1.4rem;border-radius:10px;border:none;font-weight:750;font-size:0.95rem;display:inline-flex;align-items:center;gap:0.5rem;cursor:pointer;box-shadow:0 4px 14px rgba(3,4,94,0.2);transition:all 0.15s ease}.btn-print-cheat:hover{background:#0077b6;transform:translateY(-1px)}.btn-hero-mock{background:#0077b6;color:#ffffff !important;padding:0.75rem 1.4rem;border-radius:10px;font-weight:750;font-size:0.95rem;text-decoration:none;display:inline-flex;align-items:center;gap:0.5rem;box-shadow:0 4px 14px rgba(0,119,182,0.25);transition:all 0.15s ease}.btn-hero-mock:hover{background:#0284c7;transform:translateY(-1px)}.cheat-sheet-body{background:#f8fafc;padding:2.5rem 0 4rem}.cheat-sheet-nav-pills{display:flex;flex-wrap:wrap;gap:0.55rem;justify-content:center;margin-bottom:3rem}.jump-pill{background:#ffffff;border:1px solid #e2e8f0;padding:0.5rem 1rem;border-radius:9999px;font-size:0.85rem;font-weight:650;color:#334155;text-decoration:none;box-shadow:0 1px 3px rgba(0,0,0,0.02);transition:all 0.15s ease}.jump-pill:hover{border-color:#0077b6;color:#0077b6;background:#f0f9ff;transform:translateY(-1px)}.cheat-section{margin-bottom:3.5rem;scroll-margin-top:90px}.section-heading-row{display:flex;align-items:center;gap:0.75rem;margin-bottom:0.5rem;flex-wrap:wrap}.section-badge{font-size:0.75rem;font-weight:800;background:#e0f2fe;color:#0369a1;padding:0.2rem 0.65rem;border-radius:9999px;text-transform:uppercase;letter-spacing:0.05em}.section-title{font-size:1.6rem;font-weight:800;color:#03045e;margin:0;letter-spacing:-0.015em}.section-lead{font-size:1rem;color:#64748b;margin-bottom:1.5rem}.formula-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(360px,1fr));gap:1.5rem}.formula-card{background:#ffffff;border:1px solid #e2e8f0;border-radius:16px;padding:1.5rem;box-shadow:0 4px 16px rgba(3,4,94,0.04);display:flex;flex-direction:column;transition:transform 0.2s ease,box-shadow 0.2s ease,border-color 0.2s ease}.formula-card:hover{transform:translateY(-3px);box-shadow:0 10px 25px rgba(0,119,182,0.09);border-color:#90e0ef}.formula-card-header{display:flex;align-items:center;gap:0.5rem;margin-bottom:1rem}.formula-icon{font-size:1.4rem}.formula-name{font-size:1.1rem;font-weight:750;color:#03045e;margin:0;flex-grow:1}.formula-tag{font-size:0.72rem;font-weight:700;background:#f1f5f9;color:#475569;padding:0.2rem 0.55rem;border-radius:6px}.formula-math-box{background:#f8fafc;border:1.5px dashed #cbd5e1;border-radius:10px;padding:1rem;display:flex;align-items:center;justify-content:center;gap:0.75rem;margin-bottom:1rem;font-weight:700;color:#0f172a;flex-wrap:wrap;text-align:center}.math-fraction{display:inline-flex;flex-direction:column;align-items:center}.math-fraction .numerator{border-bottom:2px solid #03045e;padding:0 0.5rem 0.2rem;font-size:0.9rem;color:#03045e}.math-fraction .denominator{padding:0.2rem 0.5rem 0;font-size:0.9rem;color:#03045e}.math-equal{font-size:1.3rem;color:#64748b}.math-result{font-size:0.95rem;color:#0077b6;font-weight:800}.formula-definition-box{background:#f8fafc;border:1px solid #e2e8f0;border-radius:10px;padding:0.9rem 1.1rem;margin-bottom:1rem;font-size:0.9rem;color:#1e293b;line-height:1.55}.formula-example{font-size:0.875rem;color:#334155;margin-bottom:0.85rem;line-height:1.6}.calc-step{background:#f0fdf4;border:1px solid #bbf7d0;border-radius:6px;padding:0.4rem 0.75rem;margin-top:0.4rem;color:#166534;font-size:0.85rem}.formula-rule{margin-top:auto;font-size:0.8rem;color:#64748b;display:flex;align-items:flex-start;gap:0.4rem;background:#fffbeb;border:1px solid #fef3c7;border-radius:8px;padding:0.55rem 0.75rem}.formula-rule .rule-icon{flex-shrink:0}.calc-widget-container{background:#ffffff;border:2px solid #bae6fd;border-radius:20px;padding:2.25rem;box-shadow:0 10px 30px rgba(0,119,182,0.08)}.calc-badge{font-size:0.75rem;font-weight:800;background:#e0f2fe;color:#0369a1;padding:0.25rem 0.75rem;border-radius:9999px;display:inline-block;margin-bottom:0.5rem;text-transform:uppercase}.calc-title{font-size:1.5rem;font-weight:800;color:#03045e;margin:0 0 0.4rem}.calc-subtitle{font-size:0.95rem;color:#64748b;margin:0 0 1.5rem}.calc-tabs{display:flex;gap:0.5rem;margin-bottom:1.5rem;flex-wrap:wrap}.calc-tab-btn{padding:0.55rem 1.1rem;border-radius:8px;border:1px solid #cbd5e1;background:#f8fafc;color:#334155;font-weight:700;font-size:0.875rem;cursor:pointer;transition:all 0.15s ease}.calc-tab-btn:hover{background:#e2e8f0}.calc-tab-btn.active{background:#0077b6;color:#ffffff;border-color:#0077b6;box-shadow:0 4px 12px rgba(0,119,182,0.25)}.calc-pane{display:none}.calc-pane.active{display:block}.calc-inputs-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.25rem;margin-bottom:1.5rem}.calc-field label{display:block;font-size:0.875rem;font-weight:700;color:#334155;margin-bottom:0.4rem}.calc-input{width:100%;padding:0.75rem 1rem;border:1.5px solid #cbd5e1;border-radius:10px;font-size:1rem;font-family:inherit;font-weight:600;color:#0f172a;outline:none;transition:border-color 0.2s,box-shadow 0.2s}.calc-input:focus{border-color:#0077b6;box-shadow:0 0 0 3px rgba(0,119,182,0.15)}.calc-output-box{background:#f0f9ff;border:1.5px solid #bae6fd;border-radius:14px;padding:1.25rem 2rem;display:flex;gap:2.5rem;flex-wrap:wrap;align-items:center;justify-content:space-around}.calc-result-item{text-align:center}.res-label{display:block;font-size:0.825rem;font-weight:700;color:#0369a1;margin-bottom:0.35rem}.res-val{font-size:1.6rem;font-weight:850;color:#03045e}.cheat-table-wrap{overflow-x:auto;background:#ffffff;border:1px solid #e2e8f0;border-radius:16px;box-shadow:0 4px 16px rgba(0,0,0,0.03)}.cheat-table{width:100%;border-collapse:collapse;text-align:left;font-size:0.925rem}.cheat-table th{background:#f8fafc;padding:1rem 1.25rem;border-bottom:2px solid #e2e8f0;font-weight:800;color:#03045e}.cheat-table td{padding:1rem 1.25rem;border-bottom:1px solid #f1f5f9;vertical-align:middle;color:#334155}.type-pill{padding:0.25rem 0.65rem;border-radius:9999px;font-size:0.75rem;font-weight:750}.type-pill.cont{background:#e0f2fe;color:#0369a1}.type-pill.discont{background:#fef3c7;color:#b45309}.bias-under{color:#0369a1;font-weight:700}.bias-over{color:#b45309;font-weight:700}.schedules-grid,.diff-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1.5rem}.schedule-card,.diff-card{background:#ffffff;border:1px solid #e2e8f0;border-radius:14px;padding:1.4rem;box-shadow:0 2px 10px rgba(0,0,0,0.03);display:flex;flex-direction:column}.highlight-vr{border-color:#0077b6;box-shadow:0 6px 20px rgba(0,119,182,0.12)}.sched-header{display:flex;align-items:center;gap:0.75rem;margin-bottom:0.85rem}.sched-code{width:44px;height:44px;border-radius:10px;background:#0077b6;color:#ffffff;font-weight:850;font-size:1.15rem;display:flex;align-items:center;justify-content:center;flex-shrink:0}.sched-meta h4{font-size:1.05rem;font-weight:750;color:#03045e;margin:0 0 0.2rem}.sched-type{font-size:0.75rem;color:#64748b;font-weight:600}.sched-rule{font-size:0.875rem;color:#1e293b;margin-bottom:0.5rem;line-height:1.5}.sched-example{font-size:0.85rem;color:#475569;margin-bottom:0.75rem;line-height:1.5}.sched-pattern{margin-top:auto;font-size:0.8125rem;background:#f8fafc;border:1px solid #e2e8f0;border-radius:8px;padding:0.6rem 0.75rem;color:#334155;line-height:1.45}.pattern-tag{display:block;font-weight:700;color:#03045e;margin-bottom:0.2rem}.diff-card{position:relative;padding-top:1.6rem}.diff-code{position:absolute;top:-12px;left:1.25rem;padding:0.2rem 0.75rem;border-radius:9999px;font-size:0.8rem;font-weight:850;color:#ffffff}.diff-code.dro{background:#0284c7}.diff-code.dra{background:#10b981}.diff-code.dri{background:#8b5cf6}.diff-code.drl{background:#f59e0b}.diff-info h4{font-size:1rem;font-weight:750;color:#03045e;margin:0 0 0.4rem}.diff-desc{font-size:0.875rem;color:#334155;margin:0 0 0.75rem;line-height:1.55}.diff-scenario{font-size:0.825rem;background:#f8fafc;border:1px solid #e2e8f0;border-radius:8px;padding:0.6rem 0.75rem;color:#475569;margin-top:auto;line-height:1.5}.dual-reference-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:1.75rem}.ref-card{background:#ffffff;border:1px solid #e2e8f0;border-radius:16px;padding:1.75rem;box-shadow:0 4px 16px rgba(0,0,0,0.03)}.ref-card-title{font-size:1.2rem;font-weight:800;color:#03045e;margin:0 0 1.25rem}.prompt-ladder{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:0.65rem}.prompt-step{display:flex;align-items:center;gap:0.75rem;padding:0.65rem 0.9rem;border-radius:10px;background:#f8fafc;border:1px solid #e2e8f0;font-size:0.875rem;color:#334155}.step-num{width:26px;height:26px;border-radius:50%;background:#0077b6;color:#ffffff;font-size:0.75rem;font-weight:800;display:flex;align-items:center;justify-content:center;flex-shrink:0}.seat-grid{display:flex;flex-direction:column;gap:0.75rem}.seat-item{display:flex;align-items:flex-start;gap:0.85rem;padding:0.85rem 1rem;background:#f8fafc;border:1px solid #e2e8f0;border-radius:12px;font-size:0.875rem;color:#334155;line-height:1.5}.seat-letter{width:34px;height:34px;border-radius:8px;color:#ffffff;font-weight:850;font-size:1.15rem;display:flex;align-items:center;justify-content:center;flex-shrink:0}.seat-letter.s{background:#0284c7}.seat-letter.e{background:#f59e0b}.seat-letter.a{background:#10b981}.seat-letter.t{background:#8b5cf6}.cheat-sheet-cta-banner{background:linear-gradient(135deg,#03045e 0%,#0077b6 100%);border-radius:20px;padding:2.5rem;color:#ffffff;text-align:center;margin-top:3.5rem;box-shadow:0 10px 30px rgba(3,4,94,0.15)}.cheat-sheet-cta-banner h2{font-size:1.85rem;font-weight:850;color:#ffffff;margin:0 0 0.75rem}.cheat-sheet-cta-banner p{font-size:1.05rem;color:#e0f2fe;max-width:620px;margin:0 auto 1.5rem;line-height:1.6}.cheat-sheet-cta-banner .cta-btns{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.btn-cta-primary{background:#00b4d8;color:#03045e !important;font-weight:800;font-size:0.95rem;padding:0.75rem 1.4rem;border-radius:10px;text-decoration:none;transition:all 0.15s ease}.btn-cta-primary:hover{background:#90e0ef;transform:translateY(-1px)}.btn-cta-secondary{background:rgba(255,255,255,0.12);color:#ffffff !important;border:1px solid rgba(255,255,255,0.3);font-weight:700;font-size:0.95rem;padding:0.75rem 1.4rem;border-radius:10px;text-decoration:none;transition:all 0.15s ease}.btn-cta-secondary:hover{background:rgba(255,255,255,0.22)}.btn-report-question{display:inline-flex;align-items:center;gap:0.35rem;font-size:0.8rem;font-weight:600;color:#64748b;background:transparent;border:1px solid #cbd5e1;padding:0.25rem 0.65rem;border-radius:6px;cursor:pointer;transition:all 0.2s ease}.btn-report-question:hover{color:#ef4444;border-color:#fca5a5;background:rgba(239,68,68,0.06)}[data-theme="dark"] .btn-report-question{color:#94a3b8;border-color:#334155}[data-theme="dark"] .btn-report-question:hover{color:#f87171;border-color:#7f1d1d;background:rgba(239,68,68,0.12)}.report-modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(15,23,42,0.75);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:10000;padding:1rem}.report-modal-content{background:#ffffff;border-radius:14px;box-shadow:0 20px 25px -5px rgba(0,0,0,0.25),0 10px 10px -5px rgba(0,0,0,0.04);overflow:hidden;width:100%;animation:reportModalFadeIn 0.2s ease-out}[data-theme="dark"] .report-modal-content{background:#1e293b;color:#f8fafc;border:1px solid #334155}@keyframes reportModalFadeIn{from{opacity:0;transform:scale(0.96) translateY(-10px)}to{opacity:1;transform:scale(1) translateY(0)}}.reviewer-byline-card{display:flex;align-items:center;gap:1.15rem;background:#f8fafc;border:1px solid #e2e8f0;border-left:4px solid #0077b6;border-radius:12px;padding:0.95rem 1.25rem;margin:1.5rem 0 1.75rem 0;transition:all 0.2s ease}[data-theme="dark"] .reviewer-byline-card{background:#0f172a;border-color:#1e293b;border-left-color:#38bdf8}.reviewer-avatar-wrap{position:relative;flex-shrink:0}.reviewer-avatar{width:52px;height:52px;border-radius:50%;object-fit:cover;border:2px solid #0077b6;background:#e0f2fe;display:flex;align-items:center;justify-content:center;font-weight:700;color:#03045e}.reviewer-verified-badge{position:absolute;bottom:-2px;right:-2px;background:#10b981;color:#fff;border-radius:50%;width:18px;height:18px;display:flex;align-items:center;justify-content:center;font-size:10px;border:2px solid #fff}.reviewer-info{flex-grow:1;min-width:0}.reviewer-title-line{display:flex;align-items:center;gap:0.5rem;flex-wrap:wrap;margin-bottom:0.25rem}.reviewer-name{font-size:1rem;font-weight:750;color:#0f172a;text-decoration:none;transition:color 0.15s ease}.reviewer-name:hover{color:#0077b6;text-decoration:underline}[data-theme="dark"] .reviewer-name{color:#f8fafc}[data-theme="dark"] .reviewer-name:hover{color:#38bdf8}.reviewer-credentials{font-size:0.78rem;font-weight:700;background:#e0f2fe;color:#0369a1;padding:2px 8px;border-radius:6px;letter-spacing:0.02em}[data-theme="dark"] .reviewer-credentials{background:rgba(56,189,248,0.18);color:#7dd3fc}.reviewer-role{font-size:0.85rem;color:#475569;margin-bottom:0.35rem;line-height:1.35}[data-theme="dark"] .reviewer-role{color:#94a3b8}.reviewer-audit-line{display:flex;align-items:center;gap:0.75rem;font-size:0.82rem;color:#64748b;flex-wrap:wrap}[data-theme="dark"] .reviewer-audit-line{color:#94a3b8}.reviewer-audit-date{display:inline-flex;align-items:center;gap:0.35rem}.reviewer-audit-badge{display:inline-flex;align-items:center;gap:0.3rem;color:#059669;font-weight:600}[data-theme="dark"] .reviewer-audit-badge{color:#34d399}.ad-container-wrapper{box-sizing:border-box;overflow:hidden;position:relative;contain:layout style}.ad-container-wrapper.ad-header-banner{min-height:100px;margin:1rem auto;display:flex;align-items:center;justify-content:center}.ad-container-wrapper.ad-in-article,.ad-container-wrapper.ad-article-top{min-height:280px;margin:2rem auto}.ad-container-wrapper.ad-in-feed{min-height:260px;margin:1.5rem auto}.ad-container-wrapper.ad-sidebar{min-height:250px;margin-bottom:1.5rem}.ad-container-wrapper.ad-article-bottom{min-height:250px;margin:2rem auto}.ad-container-wrapper.ad-quiz{min-height:280px;margin:1.5rem 0}.blog-article-body .table-responsive,.table-responsive{position:relative;width:100%;margin:2.25rem 0;background:#ffffff;border-radius:16px;border:1px solid rgba(0,119,182,0.16);box-shadow:0 10px 30px -5px rgba(3,4,94,0.06),0 2px 8px -2px rgba(0,119,182,0.08);overflow-x:auto;-webkit-overflow-scrolling:touch;transition:all 0.3s cubic-bezier(0.4,0,0.2,1)}.blog-article-body .table-responsive:hover,.table-responsive:hover{box-shadow:0 16px 36px -4px rgba(3,4,94,0.09),0 4px 12px -2px rgba(0,119,182,0.12);border-color:rgba(0,119,182,0.28)}.blog-article-body .table-responsive::before,.table-responsive::before{content:'';display:block;height:4px;width:100%;background:linear-gradient(90deg,#0077b6 0%,#00b4d8 50%,#90e0ef 100%);border-top-left-radius:15px;border-top-right-radius:15px}.blog-article-body table,.table-responsive table,.table{width:100%;margin:0 !important;border-collapse:separate !important;border-spacing:0 !important;border:none !important;font-size:0.94rem;font-family:'Inter',system-ui,-apple-system,sans-serif;color:#1e293b;line-height:1.6}.blog-article-body thead,.table-responsive thead{background:linear-gradient(135deg,#03045e 0%,#023e8a 60%,#0077b6 100%)}.blog-article-body thead th,.table-responsive thead th{padding:1rem;font-family:'Outfit','Inter',system-ui,sans-serif;font-weight:700;font-size:0.86rem;color:#ffffff;text-transform:uppercase;letter-spacing:0.06em;border:none;white-space:nowrap;vertical-align:middle}.blog-article-body thead th:not(:last-child),.table-responsive thead th:not(:last-child){border-right:1px solid 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td{background-color:rgba(0,180,216,0.08) !important;color:#0f172a}.blog-article-body tbody tr:hover td:first-child,.table-responsive tbody tr:hover td:first-child{background-color:rgba(0,119,182,0.12) !important;color:#0077b6}.blog-article-body tbody tr:last-child td,.table-responsive tbody tr:last-child td{border-bottom:none}.blog-article-body tbody tr:last-child td:first-child,.table-responsive tbody tr:last-child td:first-child{border-bottom-left-radius:15px}.blog-article-body tbody tr:last-child td:last-child,.table-responsive tbody tr:last-child td:last-child{border-bottom-right-radius:15px}.blog-article-body tbody td strong,.table-responsive tbody td strong{color:#023e8a;font-weight:700}.blog-article-body .table-responsive::-webkit-scrollbar,.table-responsive::-webkit-scrollbar{height:7px}.blog-article-body .table-responsive::-webkit-scrollbar-track,.table-responsive::-webkit-scrollbar-track{background:rgba(0,119,182,0.05);border-radius:10px}.blog-article-body .table-responsive::-webkit-scrollbar-thumb,.table-responsive::-webkit-scrollbar-thumb{background:rgba(0,119,182,0.25);border-radius:10px}.blog-article-body .table-responsive::-webkit-scrollbar-thumb:hover,.table-responsive::-webkit-scrollbar-thumb:hover{background:rgba(0,119,182,0.45)}.blog-scenario-card,.blog-article-body .card{border-radius:14px !important;border:1px solid rgba(0,119,182,0.16) !important;border-left:4px solid #0077b6 !important;background:linear-gradient(180deg,rgba(240,249,255,0.6) 0%,#ffffff 100%) !important;box-shadow:0 6px 20px -3px rgba(3,4,94,0.05) !important;padding:1.5rem !important;margin:2rem 0 !important;transition:all 0.25s ease !important}.blog-scenario-card:hover,.blog-article-body .card:hover{box-shadow:0 10px 28px -4px rgba(3,4,94,0.08) !important;border-color:rgba(0,119,182,0.28) !important}[data-theme="dark"] .blog-article-body .table-responsive,[data-theme="dark"] .table-responsive{background:rgba(15,23,42,0.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-color:rgba(56,189,248,0.22);box-shadow:0 12px 36px -4px rgba(0,0,0,0.5),0 0 0 1px rgba(56,189,248,0.1)}[data-theme="dark"] .blog-article-body .table-responsive:hover,[data-theme="dark"] .table-responsive:hover{border-color:rgba(56,189,248,0.4);box-shadow:0 16px 42px -4px rgba(0,0,0,0.65),0 0 0 1px rgba(56,189,248,0.25)}[data-theme="dark"] .blog-article-body .table-responsive::before,[data-theme="dark"] .table-responsive::before{background:linear-gradient(90deg,#0284c7 0%,#38bdf8 50%,#90e0ef 100%)}[data-theme="dark"] .blog-article-body table,[data-theme="dark"] .table-responsive table{color:#e2e8f0}[data-theme="dark"] .blog-article-body thead,[data-theme="dark"] .table-responsive thead{background:linear-gradient(135deg,#0b1528 0%,#0c2340 50%,#0369a1 100%)}[data-theme="dark"] .blog-article-body thead th,[data-theme="dark"] .table-responsive thead th{color:#f0f9ff;border-bottom:2px solid rgba(56,189,248,0.35)}[data-theme="dark"] .blog-article-body thead th:not(:last-child),[data-theme="dark"] .table-responsive thead th:not(:last-child){border-right:1px solid rgba(56,189,248,0.15)}[data-theme="dark"] .blog-article-body tbody td,[data-theme="dark"] .table-responsive tbody td{color:#cbd5e1;border-bottom:1px solid rgba(56,189,248,0.12)}[data-theme="dark"] .blog-article-body tbody td:not(:last-child),[data-theme="dark"] .table-responsive tbody td:not(:last-child){border-right:1px solid rgba(56,189,248,0.08)}[data-theme="dark"] .blog-article-body tbody td:first-child,[data-theme="dark"] .table-responsive tbody td:first-child{color:#38bdf8;background:rgba(12,74,110,0.25)}[data-theme="dark"] .blog-article-body tbody tr:nth-child(even) td,[data-theme="dark"] .table-responsive tbody tr:nth-child(even) td{background-color:rgba(30,41,59,0.45)}[data-theme="dark"] .blog-article-body tbody tr:nth-child(even) td:first-child,[data-theme="dark"] .table-responsive tbody tr:nth-child(even) td:first-child{background-color:rgba(12,74,110,0.35)}[data-theme="dark"] .blog-article-body tbody tr:hover td,[data-theme="dark"] .table-responsive tbody tr:hover td{background-color:rgba(56,189,248,0.12) !important;color:#f8fafc}[data-theme="dark"] .blog-article-body tbody tr:hover td:first-child,[data-theme="dark"] .table-responsive tbody tr:hover td:first-child{background-color:rgba(56,189,248,0.2) !important;color:#7dd3fc}[data-theme="dark"] .blog-article-body tbody td strong,[data-theme="dark"] .table-responsive tbody td strong{color:#38bdf8}[data-theme="dark"] .blog-article-body .table-responsive::-webkit-scrollbar-track,[data-theme="dark"] .table-responsive::-webkit-scrollbar-track{background:rgba(15,23,42,0.6)}[data-theme="dark"] .blog-article-body .table-responsive::-webkit-scrollbar-thumb,[data-theme="dark"] .table-responsive::-webkit-scrollbar-thumb{background:rgba(56,189,248,0.3)}[data-theme="dark"] .blog-article-body 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!important}.cheat-sheet-subtitle,.topic-hero .subtitle{font-size:0.9rem !important;color:#333333 !important}.cheat-section{margin-bottom:1.25rem !important;break-inside:auto;page-break-inside:auto}.formula-card,.schedule-card,.diff-card,.ref-card,.cheat-sheet-card,.aeo-definition-card,.reviewer-byline-card,.stat-card,.result-item{break-inside:avoid !important;page-break-inside:avoid !important;box-shadow:none !important;border:1px solid #000000 !important;background:#ffffff !important;color:#000000 !important;padding:0.65rem !important;margin-bottom:0.75rem !important}.formula-grid,.schedules-grid,.diff-grid,.dual-reference-grid{display:grid !important;grid-template-columns:repeat(2,1fr) !important;gap:0.6rem !important}table,tr,td,th{border:1px solid #000000 !important;color:#000000 !important}th{background:#f1f5f9 !important;font-weight:bold !important}}.prefooter-exams-section{padding:3rem 0 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strong{display:block;font-size:0.92rem;color:#f8fafc;margin-bottom:0.2rem;font-weight:700}.cookie-text p{margin:0;color:#94a3b8;font-size:0.82rem}.cookie-text a{color:#38bdf8;text-decoration:underline}.cookie-accept-btn{background:linear-gradient(135deg,#0284c7 0%,#0369a1 100%);color:#ffffff;border:none;border-radius:10px;padding:0.55rem 1.15rem;font-size:0.84rem;font-weight:700;cursor:pointer;box-shadow:0 4px 12px rgba(2,132,199,0.35);transition:all 0.2s ease;white-space:nowrap;align-self:center}.cookie-accept-btn:hover{transform:translateY(-1px);box-shadow:0 6px 16px rgba(2,132,199,0.5);background:linear-gradient(135deg,#0284c7 0%,#0284c7 100%)}@media (max-width:576px){.cookie-consent{bottom:1rem;left:1rem;right:1rem;max-width:none;padding:1.1rem}.cookie-consent-content{flex-direction:column}.cookie-accept-btn{width:100%;text-align:center;padding:0.7rem 1rem}}