@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Space+Grotesk:wght@400;500;600;700&display=swap";:root{--color-bg-primary: #0a0e27;--color-bg-secondary: #151b3d;--color-bg-card: rgba(21, 27, 61, .6);--color-accent-primary: #6366f1;--color-accent-secondary: #8b5cf6;--color-accent-tertiary: #ec4899;--color-text-primary: #f8fafc;--color-text-secondary: #cbd5e1;--color-text-muted: #94a3b8;--color-border: rgba(148, 163, 184, .1);--color-bg-glass: rgba(21, 27, 61, .4);--gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);--gradient-card: linear-gradient(135deg, rgba(99, 102, 241, .1) 0%, rgba(139, 92, 246, .1) 100%);--gradient-hover: linear-gradient(135deg, rgba(99, 102, 241, .2) 0%, rgba(139, 92, 246, .2) 100%);--spacing-xs: .5rem;--spacing-sm: 1rem;--spacing-md: 1.5rem;--spacing-lg: 2rem;--spacing-xl: 3rem;--spacing-2xl: 4rem;--radius-sm: .5rem;--radius-md: 1rem;--radius-lg: 1.5rem;--radius-xl: 2rem;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .1);--shadow-md: 0 4px 16px rgba(0, 0, 0, .2);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .3);--shadow-glow: 0 0 40px rgba(99, 102, 241, .3);--font-primary: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-display: "Space Grotesk", var(--font-primary)}[data-theme=light]{--color-bg-primary: #f8fafc;--color-bg-secondary: #f1f5f9;--color-bg-card: rgba(255, 255, 255, .8);--color-accent-primary: #4f46e5;--color-accent-secondary: #7c3aed;--color-accent-tertiary: #db2777;--color-text-primary: #0f172a;--color-text-secondary: #334155;--color-text-muted: #64748b;--color-border: rgba(148, 163, 184, .3);--color-bg-glass: rgba(255, 255, 255, .7);--gradient-primary: linear-gradient(135deg, #4338ca 0%, #6d28d9 50%, #be185d 100%);--gradient-card: linear-gradient(135deg, rgba(67, 56, 202, .05) 0%, rgba(109, 40, 217, .05) 100%);--gradient-hover: linear-gradient(135deg, rgba(67, 56, 202, .1) 0%, rgba(109, 40, 217, .1) 100%);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .05);--shadow-md: 0 4px 16px rgba(0, 0, 0, .1);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .15);--shadow-glow: 0 0 40px rgba(79, 70, 229, .15)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}section[id],div[id],.content-section,.question-card[id],.question-section{scroll-margin-top:100px}body{font-family:var(--font-primary);background:var(--color-bg-primary);color:var(--color-text-primary);line-height:1.6;overflow-x:hidden;min-height:100vh}body:before{content:"";position:fixed;top:0;left:0;width:100%;height:100%;background:radial-gradient(circle at 20% 30%,rgba(99,102,241,.15) 0%,transparent 50%),radial-gradient(circle at 80% 70%,rgba(139,92,246,.15) 0%,transparent 50%),radial-gradient(circle at 50% 50%,rgba(236,72,153,.1) 0%,transparent 50%);pointer-events:none;z-index:0}#root{position:relative;z-index:1;max-width:100vw;overflow-x:hidden}h1,h2,h3,h4,h5,h6{font-family:var(--font-display);font-weight:700;line-height:1.2;margin-bottom:var(--spacing-md)}h1{font-size:clamp(2.5rem,5vw,4rem);background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}h2{font-size:clamp(2rem,4vw,3rem)}h3{font-size:clamp(1.5rem,3vw,2rem)}p{color:var(--color-text-secondary);margin-bottom:var(--spacing-sm)}.container{max-width:1400px;margin:0 auto;padding:0 var(--spacing-lg)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-xs);padding:var(--spacing-sm) var(--spacing-lg);border:none;border-radius:var(--radius-md);font-family:var(--font-primary);font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);text-decoration:none;position:relative;overflow:hidden}.btn:before{content:"";position:absolute;top:50%;left:50%;width:0;height:0;border-radius:50%;background:#ffffff1a;transform:translate(-50%,-50%);transition:width .6s,height .6s}.btn:hover:before{width:300px;height:300px}.btn-primary{background:var(--gradient-primary);color:#fff;box-shadow:var(--shadow-md)}.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg),var(--shadow-glow)}.btn-secondary{background:var(--color-bg-card);color:var(--color-text-primary);border:2px solid var(--color-border);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.btn-secondary:hover{border-color:var(--color-accent-primary);background:var(--gradient-hover);transform:translateY(-2px)}.card{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--spacing-lg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:all .4s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden}.card:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:var(--gradient-card);opacity:0;transition:opacity .4s ease;pointer-events:none}.card:hover{transform:translateY(-8px);border-color:var(--color-accent-primary);box-shadow:var(--shadow-lg)}.card:hover:before{opacity:1}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-20px)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.fade-in-up{animation:fadeInUp .6s ease-out forwards}.text-gradient{background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.glassmorphism{background:var(--color-bg-glass);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--color-border)}.overflow-x-auto{overflow-x:auto;-webkit-overflow-scrolling:touch}@media(max-width:768px){:root{--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem}.container{padding:0 var(--spacing-sm)}}.user-header{position:relative}.user-avatar-btn{width:40px;height:40px;border-radius:50%;border:2px solid rgba(99,102,241,.5);background:linear-gradient(135deg,#6366f1,#8b5cf6);cursor:pointer;padding:0;transition:all .2s ease;display:flex;align-items:center;justify-content:center}.user-avatar-btn:hover{border-color:#818cf8;transform:scale(1.05);box-shadow:0 4px 12px #6366f14d}.user-avatar-img{width:100%;height:100%;object-fit:cover;border-radius:50%}.user-avatar-initials{color:#fff;font-weight:600;font-size:.875rem}.user-dropdown{position:absolute;top:calc(100% + 8px);right:0;min-width:260px;background:#1e1e32fa;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.1);border-radius:16px;box-shadow:0 20px 40px 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.button-arrow{transform:translate(4px)}.course-gradient{position:absolute;top:0;left:0;width:100%;height:100%;border-radius:var(--radius-lg);transition:opacity .4s ease;pointer-events:none;z-index:1}.resources-section{padding:var(--spacing-2xl) 0;background:var(--color-bg-secondary);position:relative;scroll-margin-top:100px}.resources-grid{display:flex;justify-content:center;margin-top:var(--spacing-xl)}.promo-card{display:flex;background:linear-gradient(135deg,#1e293b,#0f172a);border-radius:var(--radius-lg);overflow:hidden;max-width:900px;width:100%;box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.1);transition:transform .3s ease,box-shadow .3s ease}.promo-card:hover{transform:translateY(-4px);box-shadow:0 20px 25px -5px #0000001a,0 10px 10px -5px #0000000a}.promo-content{padding:var(--spacing-xl);flex:1;display:flex;flex-direction:column;justify-content:center}.promo-badge{display:inline-block;padding:4px 12px;background:#6366f133;color:#818cf8;border-radius:50px;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;margin-bottom:var(--spacing-md);align-self:flex-start}.promo-title{font-size:2rem;font-weight:800;margin-bottom:var(--spacing-sm);background:linear-gradient(to right,#fff,#94a3b8);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.promo-description{color:#cbd5e1;font-size:1.125rem;line-height:1.6;margin-bottom:var(--spacing-lg)}.promo-stats{display:flex;gap:var(--spacing-lg);margin-bottom:var(--spacing-lg)}.stat-item{display:flex;align-items:center;gap:8px;color:#94a3b8;font-weight:500;font-size:.875rem}.promo-button{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;background:#6366f1;color:#fff;text-decoration:none;border-radius:var(--radius-md);font-weight:600;transition:all .3s ease;align-self:flex-start}.promo-button:hover{background:#4f46e5;padding-right:28px}.promo-visual{flex:0 0 40%;background:#1e1b4b;position:relative;display:flex;align-items:center;justify-content:center;overflow:hidden}.visual-icon{font-size:8rem;position:relative;z-index:2;animation:float 6s ease-in-out infinite}.visual-circle{position:absolute;width:300px;height:300px;background:radial-gradient(circle,#6366f14d,#6366f100 70%);border-radius:50%;top:50%;left:50%;transform:translate(-50%,-50%);z-index:1}.footer{margin-top:auto;padding:var(--spacing-xl) 0 var(--spacing-lg);background:var(--color-bg-secondary);border-top:1px solid var(--color-border)}.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--spacing-lg);margin-bottom:var(--spacing-lg)}.footer-title{font-size:1.125rem;margin-bottom:var(--spacing-xs);background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.footer-text{color:var(--color-text-muted);font-size:.875rem}.footer-bottom{padding-top:var(--spacing-lg);border-top:1px solid var(--color-border);text-align:center}.footer-copyright{color:var(--color-text-muted);font-size:.875rem}@media(max-width:768px){.nav{display:none}.mobile-nav-toggle{display:block}.mobile-left-controls,.mobile-right-controls{display:flex}.hero{padding:calc(60px + var(--spacing-xl)) 0 var(--spacing-xl);min-height:auto}.hero-title{font-size:2rem}.hero-description{font-size:1rem}.hero-actions{flex-direction:column;align-items:stretch}.courses-grid{grid-template-columns:1fr}.floating-elements{display:none}.footer-content{grid-template-columns:1fr;text-align:center}.promo-card{flex-direction:column-reverse}.promo-visual{height:200px}.visual-icon{font-size:5rem}.visual-circle{width:200px;height:200px}.promo-content{text-align:center;align-items:center}.promo-badge{align-self:center}.promo-stats{justify-content:center;flex-wrap:wrap}.promo-button{align-self:stretch;justify-content:center}}@media(max-width:480px){.course-icon{width:60px;height:60px}.icon-emoji{font-size:2rem}.course-title{font-size:1.25rem}.courses-grid{grid-template-columns:1fr;margin-top:var(--spacing-lg)}.course-button{flex-wrap:wrap}}.modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#000000b3;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);display:flex;align-items:center;justify-content:center;z-index:2000;animation:fadeIn .2s ease-out}.modal-content{background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:0;position:relative;display:flex;flex-direction:column;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-xl);animation:slideIn .3s cubic-bezier(.16,1,.3,1)}.modal-header{padding:var(--spacing-lg);display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--color-border);position:sticky;top:0;background:var(--color-bg-secondary);z-index:10}.modal-close-btn{background:transparent;border:none;color:var(--color-text-muted);font-size:1.5rem;cursor:pointer;transition:color .2s ease;padding:4px;line-height:1}.modal-close-btn:hover{color:var(--color-text-primary)}.modal-body{padding:var(--spacing-lg)}.modal-footer{padding:var(--spacing-lg);border-top:1px solid var(--color-border);display:flex;justify-content:flex-end;gap:var(--spacing-md);background:var(--color-bg-secondary);position:sticky;bottom:0}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideIn{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.exam-schedule-modal{max-width:600px;width:90%}.header-title{display:flex;align-items:center;gap:1rem}.course-title-large{font-size:1.5rem;margin-bottom:.25rem;color:var(--color-text-primary)}.course-code{color:var(--color-text-secondary);font-family:Fira Code,monospace;font-size:.9rem;margin-bottom:1.5rem;padding:2px 6px;background:#ffffff0d;border-radius:4px;display:inline-block}.schedule-grid{display:grid;gap:1.5rem;margin-bottom:2rem}.exam-card{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:1.25rem;transition:transform .2s ease,box-shadow .2s ease}.exam-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--color-accent-primary)}.exam-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;padding-bottom:.75rem;border-bottom:1px solid var(--color-border)}.exam-header h4{margin:0;color:var(--color-text-primary);font-size:1.1rem}.exam-duration{font-size:.8rem;color:var(--color-text-muted);background:#ffffff0d;padding:2px 8px;border-radius:12px}.exam-details{display:flex;flex-direction:column;gap:.75rem}.date-row{display:flex;justify-content:space-between;align-items:center}.date-row .label{color:var(--color-text-secondary);font-size:.9rem}.date-row .value{color:var(--color-text-primary);font-weight:500;font-family:Fira Code,monospace}.session-badge{align-self:flex-start;background:#6366f11a;color:var(--color-accent-primary);padding:4px 8px;border-radius:4px;font-size:.8rem;font-weight:600;margin-top:.5rem}.schedule-legend{background:#ffffff08;border-radius:var(--radius-sm);padding:1rem}.schedule-legend h4{margin:0 0 .75rem;font-size:.9rem;color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.05em}.legend-items{display:flex;flex-direction:column;gap:.5rem}.legend-item{display:flex;align-items:center;gap:.75rem;font-size:.85rem;color:var(--color-text-secondary)}.legend-item .badge{background:var(--color-bg-secondary);padding:2px 6px;border-radius:4px;font-weight:700;min-width:30px;text-align:center;border:1px solid var(--color-border)}@media(min-width:640px){.schedule-grid{grid-template-columns:1fr 1fr}}.update-notification{position:fixed;bottom:-200px;left:50%;transform:translate(-50%);z-index:9999;transition:bottom .3s cubic-bezier(.4,0,.2,1);max-width:90%;width:400px}.update-notification.show{bottom:20px}.update-content{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:16px;padding:1.25rem;box-shadow:0 10px 40px #00000026;display:flex;flex-direction:column;gap:1rem;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.update-icon{font-size:2rem;text-align:center}.update-text{text-align:center}.update-text h3{margin:0 0 .5rem;font-size:1.1rem;font-weight:600;color:var(--color-text-primary)}.update-text p{margin:0;font-size:.9rem;color:var(--color-text-secondary);line-height:1.4}.update-actions{display:flex;gap:.75rem;justify-content:center}.update-btn{padding:.65rem 1.25rem;border-radius:8px;font-size:.9rem;font-weight:600;cursor:pointer;transition:all .2s ease;border:none;font-family:inherit}.update-btn.primary{background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;box-shadow:0 4px 12px #6366f14d}.update-btn.primary:hover{transform:translateY(-2px);box-shadow:0 6px 16px #6366f166}.update-btn.secondary{background:transparent;color:var(--color-text-secondary);border:1px solid var(--color-border)}.update-btn.secondary:hover{background:#6366f10d;border-color:var(--color-accent-primary);color:var(--color-text-primary)}@media(max-width:768px){.update-notification{width:calc(100% - 2rem);max-width:none}.update-notification.show{bottom:10px}.update-content{padding:1rem}.update-text h3{font-size:1rem}.update-text p{font-size:.85rem}.update-actions{flex-direction:column}.update-btn{width:100%}}