@import "https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap";
:root,[data-theme=light]{--font-sans:"Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono:"JetBrains Mono", monospace;--bg-main:#f8fafc;--bg-surface:#fff;--bg-surface-elevated:#f1f5f9;--bg-glass:#fffffff2;--bg-glass-hover:#f1f5f9fa;--border-subtle:#0f172a1f;--border-focus:#1d4ed880;--border-accent:#1d4ed840;--text-primary:#0f172a;--text-secondary:#1e293b;--text-muted:#334155;--text-inverse:#fff;--primary:#1d4ed8;--primary-hover:#1e40af;--primary-glow:#1d4ed833;--accent-purple:#6d28d9;--accent-pink:#be185d;--accent-cyan:#0284c7;--accent-emerald:#047857;--accent-amber:#b45309;--accent-rose:#be123c;--grad-primary:linear-gradient(135deg, #1d4ed8 0%, #4338ca 50%, #6d28d9 100%);--grad-glow:linear-gradient(135deg, #1d4ed824 0%, #4338ca24 100%);--grad-surface:linear-gradient(180deg, #fff 0%, #f8fafc 100%);--grad-emerald:linear-gradient(135deg, #059669 0%, #047857 100%);--grad-amber:linear-gradient(135deg, #d97706 0%, #b45309 100%);--shadow-sm:0 1px 3px #0f172a14, 0 1px 2px #0f172a0d;--shadow-md:0 4px 16px -2px #0f172a1a, 0 2px 6px -2px #0f172a0d;--shadow-lg:0 12px 32px -4px #0f172a1f, 0 4px 12px -2px #0f172a0f;--shadow-glow:0 0 25px #1d4ed82e;--header-height:8.75rem;--ease-smooth:cubic-bezier(.16, 1, .3, 1);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}[data-theme=dark]{--header-height:8.75rem;--bg-main:#0b0f19;--bg-surface:#131b2e;--bg-surface-elevated:#1a253d;--bg-glass:#131b2ed9;--bg-glass-hover:#1a253df2;--border-subtle:#ffffff1a;--border-focus:#6366f180;--border-accent:#8b5cf659;--text-primary:#f8fafc;--text-secondary:#94a3b8;--text-muted:#64748b;--text-inverse:#090d16;--primary:#6366f1;--primary-hover:#4f46e5;--primary-glow:#6366f140;--accent-purple:#8b5cf6;--accent-pink:#ec4899;--accent-cyan:#06b6d4;--accent-emerald:#10b981;--accent-amber:#f59e0b;--accent-rose:#f43f5e;--grad-primary:linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #d946ef 100%);--grad-glow:linear-gradient(135deg, #6366f126 0%, #d946ef26 100%);--grad-surface:linear-gradient(180deg, #19223999 0%, #0f1525e6 100%);--grad-emerald:linear-gradient(135deg, #10b981 0%, #059669 100%);--grad-amber:linear-gradient(135deg, #f59e0b 0%, #d97706 100%);--shadow-sm:0 2px 8px #0000004d;--shadow-md:0 8px 24px -4px #00000073;--shadow-lg:0 16px 40px -8px #000000a6;--shadow-glow:0 0 30px #6366f140;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background-color:var(--bg-main);color:var(--text-primary);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;line-height:1.6;transition:background-color .25s,color .25s;position:relative;overflow-x:hidden}body:before{content:"";filter:blur(80px);pointer-events:none;z-index:0;background:radial-gradient(circle,#6366f114 0%,#f8fafc00 70%);width:600px;height:600px;position:fixed;top:-20%;left:20%}[data-theme=dark] body:before{background:radial-gradient(circle,#6366f11f 0%,#0000 70%)}body:after{content:"";filter:blur(90px);pointer-events:none;z-index:0;background:radial-gradient(circle,#db27770f 0%,#f8fafc00 70%);width:500px;height:500px;position:fixed;bottom:-10%;right:15%}[data-theme=dark] body:after{background:radial-gradient(circle,#d946ef14 0%,#0000 70%)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-main)}::-webkit-scrollbar-thumb{background:var(--border-subtle);border:1px solid #0000;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--accent-purple)}.container{z-index:1;width:100%;max-width:1280px;margin:0 auto;padding:0 1.5rem;position:relative}@media (max-width:768px){.container{padding:0 1rem}}@media (max-width:480px){.container{padding:0 .75rem}}h1,h2,h3,h4,h5,h6{color:var(--text-primary);font-weight:700;line-height:1.25}.text-gradient{background:var(--grad-primary);-webkit-text-fill-color:transparent;-webkit-background-clip:text;display:inline-block}.text-secondary{color:var(--text-secondary)}.text-muted{color:var(--text-muted)}.btn{font-family:var(--font-sans);cursor:pointer;transition:all .25s var(--ease-smooth);-webkit-user-select:none;user-select:none;white-space:nowrap;border:1px solid #0000;border-radius:.75rem;justify-content:center;align-items:center;gap:.5rem;padding:.7rem 1.4rem;font-size:.925rem;font-weight:600;text-decoration:none;display:inline-flex}.btn:active{transform:scale(.98)}.btn-primary{background:var(--grad-primary);color:#fff;box-shadow:0 4px 18px #6366f159}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 24px #6366f18c}.btn-secondary{background:var(--bg-surface);color:var(--text-primary);border-color:var(--border-subtle);box-shadow:var(--shadow-sm)}.btn-secondary:hover{background:var(--bg-surface-elevated);border-color:var(--border-accent);transform:translateY(-1px)}.btn-outline{color:var(--text-primary);border-color:var(--border-subtle);background:0 0}.btn-outline:hover{border-color:var(--primary);background:#6366f114}.btn-success{background:var(--grad-emerald);color:#fff;box-shadow:0 4px 14px #10b9814d}.btn-sm{border-radius:.5rem;padding:.45rem .9rem;font-size:.825rem}.btn-lg{border-radius:.875rem;padding:.85rem 1.85rem;font-size:1.05rem}.glass-card{background:var(--bg-surface);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border-subtle);box-shadow:var(--shadow-sm);transition:all .3s var(--ease-smooth);border-radius:1rem;padding:1.5rem}.glass-card:hover{border-color:var(--border-accent);box-shadow:var(--shadow-md)}.badge{text-transform:uppercase;letter-spacing:.05em;border-radius:9999px;align-items:center;gap:.35rem;padding:.25rem .65rem;font-size:.75rem;font-weight:700;display:inline-flex}.badge-primary{color:var(--primary);background:#4f46e51a;border:1px solid #4f46e540}.badge-emerald{color:var(--accent-emerald);background:#0596691a;border:1px solid #05966940}.badge-amber{color:var(--accent-amber);background:#d977061f;border:1px solid #d9770640}.badge-cyan{color:var(--accent-cyan);background:#0284c71a;border:1px solid #0284c740}.badge-purple{color:#c084fc;background:linear-gradient(135deg,#a855f729,#ec489929);border:1px solid #a855f759;box-shadow:0 0 10px #a855f726}.form-input{background:var(--bg-surface);border:1px solid var(--border-subtle);width:100%;color:var(--text-primary);font-family:var(--font-sans);border-radius:.625rem;outline:none;padding:.75rem 1rem;font-size:.925rem;transition:all .2s}.form-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow);background:var(--bg-surface)}.progress-track{background:var(--border-subtle);border-radius:9999px;width:100%;height:8px;position:relative;overflow:hidden}.progress-fill{background:var(--grad-primary);height:100%;transition:width .4s var(--ease-smooth);border-radius:9999px}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes pulseGlow{0%,to{opacity:.6}50%{opacity:1}}.animate-fade-in{animation:fadeIn .4s var(--ease-smooth) forwards}.header-grid-container{height:var(--header-height,8.75rem);grid-template-columns:minmax(360px,1fr) auto minmax(360px,1fr);align-items:center;gap:1rem;width:100%;max-width:1680px;margin:0 auto;padding:0 clamp(1rem,2.5vw,2.5rem);display:grid}.header-logo-container{justify-self:start;align-items:center;margin-left:clamp(2rem,5.5vw,5.5rem);transition:margin-left .25s;display:flex}.header-logo-icon{background:var(--grad-primary);border-radius:1.8rem;flex-shrink:0;justify-content:center;align-items:center;width:6.8rem;height:6.8rem;transition:transform .2s,box-shadow .2s;display:flex;box-shadow:0 8px 24px -2px #4f46e573}.header-logo-link:hover .header-logo-icon{transform:scale(1.04);box-shadow:0 10px 32px -2px #4f46e599}.header-logo-text{letter-spacing:-.035em;color:var(--text-primary);-webkit-user-select:none;user-select:none;font-size:3.7rem;font-weight:900;line-height:1;display:inline-block}@media (max-width:1280px){.header-grid-container{grid-template-columns:minmax(300px,1fr) auto minmax(300px,1fr)}}@media (max-width:1180px){.header-desktop-nav{display:none!important}.header-mobile-toggle{display:inline-flex!important}.header-grid-container{grid-template-columns:1fr auto!important}}@media (max-width:768px){:root,[data-theme=light],[data-theme=dark]{--header-height:6.5rem}.header-grid-container{height:var(--header-height,6.5rem)}.header-logo-icon{border-radius:1.2rem;width:4.6rem;height:4.6rem}.header-logo-icon svg{width:36px!important;height:36px!important}.header-logo-text{font-size:2.4rem}.header-logo-container{margin-left:0}}@media (max-width:480px){:root,[data-theme=light],[data-theme=dark]{--header-height:5.5rem}.header-grid-container{height:var(--header-height,5.5rem)}.header-logo-icon{border-radius:.95rem;width:3.6rem;height:3.6rem}.header-logo-icon svg{width:28px!important;height:28px!important}.header-logo-text{font-size:1.85rem}}@media (max-width:640px){.header-db-pill span.db-text,.header-persona-name,.header-persona-badge,.header-persona-chevron{display:none!important}.header-persona-btn{border-radius:9999px!important;gap:0!important;padding:.35rem!important}}.lesson-player-layout{grid-template-columns:minmax(0,1fr) 360px;align-items:start;gap:2rem;display:grid}@media (max-width:1024px){.lesson-player-layout{grid-template-columns:1fr;gap:1.5rem}}.lesson-sidebar{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:1rem;flex-direction:column;width:100%;max-width:380px;height:calc(100vh - 7rem);display:flex;position:sticky;top:5.5rem;overflow:hidden}@media (max-width:1024px){.lesson-sidebar{max-width:100%;height:auto;margin-top:1.5rem;position:static}}.responsive-tabs-bar{border-bottom:1px solid var(--border-subtle);white-space:nowrap;-webkit-overflow-scrolling:touch;scrollbar-width:thin;gap:.75rem;margin-bottom:1.5rem;padding-bottom:.25rem;display:flex;overflow-x:auto}.responsive-tabs-bar::-webkit-scrollbar{height:4px}.cbt-exam-layout{flex-grow:1;grid-template-columns:minmax(0,1fr) 340px;align-items:start;gap:2rem;width:100%;max-width:1400px;margin:0 auto;padding:2rem 1.5rem;display:grid}@media (max-width:1024px){.cbt-exam-layout{grid-template-columns:1fr;gap:1.5rem;padding:1.25rem 1rem}}@media (max-width:480px){.cbt-exam-layout{padding:1rem .75rem}}.live-room-layout{flex-grow:1;grid-template-columns:minmax(0,1fr) 360px;display:grid;overflow:hidden}@media (max-width:1024px){.live-room-layout{grid-template-columns:1fr;overflow-y:auto}}.responsive-modal-backdrop{z-index:9999;-webkit-backdrop-filter:blur(8px);background:#05070fd9;justify-content:center;align-items:center;padding:1.5rem;display:flex;position:fixed;inset:0}@media (max-width:640px){.responsive-modal-backdrop{padding:.5rem}}.responsive-modal-card{border-radius:1.25rem;flex-direction:column;width:100%;max-width:1020px;max-height:92dvh;animation:.2s ease-out fadeIn;display:flex;overflow:hidden}@media (max-width:640px){.responsive-modal-card{border-radius:1rem;max-height:95dvh}}.quiz-modal-grid{flex-grow:1;grid-template-columns:280px 1fr;display:grid;overflow:hidden}@media (max-width:768px){.quiz-modal-grid{grid-template-columns:1fr;overflow-y:auto}.quiz-modal-sidebar{max-height:180px;border-right:none!important;border-bottom:1px solid var(--border-subtle)!important}}.touch-target{justify-content:center;align-items:center;min-width:44px;min-height:44px;display:inline-flex}[data-theme=light]{color:#0f172a}[data-theme=light] body{color:#0f172a;background-color:#f8fafc}[data-theme=light] h1,[data-theme=light] h2,[data-theme=light] h3,[data-theme=light] h4,[data-theme=light] h5,[data-theme=light] h6{color:#0f172a!important}[data-theme=light] p{color:#1e293b!important}[data-theme=light] label{color:#0f172a!important}[data-theme=light] .text-secondary,[data-theme=light] [style*="color: var(--text-secondary)"],[data-theme=light] [style*="color:var(--text-secondary)"]{color:#1e293b!important}[data-theme=light] .text-muted,[data-theme=light] [style*="color: var(--text-muted)"],[data-theme=light] [style*="color:var(--text-muted)"]{color:#334155!important}[data-theme=light] a:not(.btn):not(.badge):not(.header-logo-link){color:#1d4ed8}[data-theme=light] a:not(.btn):not(.badge):not(.header-logo-link):hover{color:#1e40af}[data-theme=light] .glass-card{background:#fff!important;border:1px solid #e2e8f0!important;box-shadow:0 4px 20px -2px #0f172a14,0 2px 6px -2px #0f172a0a!important}[data-theme=light] .glass-card h1,[data-theme=light] .glass-card h2,[data-theme=light] .glass-card h3,[data-theme=light] .glass-card h4,[data-theme=light] .glass-card h5{color:#0f172a!important}[data-theme=light] .glass-card p{color:#1e293b!important}[data-theme=light] [style*="color: #ffffff"]:not(.btn-primary *):not(.btn-success *):not(.btn-danger *):not(.btn-primary):not(.btn-success):not(.btn-danger):not(.header-logo-icon *):not(.badge *),[data-theme=light] [style*="color: '#ffffff'"]:not(.btn-primary *):not(.btn-success *):not(.btn-danger *):not(.btn-primary):not(.btn-success):not(.btn-danger):not(.header-logo-icon *):not(.badge *),[data-theme=light] [style*="color: #fff"]:not(.btn-primary *):not(.btn-success *):not(.btn-danger *):not(.btn-primary):not(.btn-success):not(.btn-danger):not(.header-logo-icon *):not(.badge *),[data-theme=light] [style*="color: white"]:not(.btn-primary *):not(.btn-success *):not(.btn-danger *):not(.btn-primary):not(.btn-success):not(.btn-danger):not(.header-logo-icon *):not(.badge *){color:#0f172a!important}[data-theme=light] [style*="color: #c7d2fe"],[data-theme=light] [style*="color: '#c7d2fe'"]{color:#1e40af!important}[data-theme=light] [style*="color: #a5b4fc"],[data-theme=light] [style*="color: '#a5b4fc'"]{color:#1d4ed8!important}[data-theme=light] [style*="color: #94a3b8"],[data-theme=light] [style*="color: '#94a3b8'"]{color:#334155!important}[data-theme=light] [style*="color: #e2e8f0"],[data-theme=light] [style*="color: '#e2e8f0'"]{color:#0f172a!important}[data-theme=light] .form-input,[data-theme=light] input[type=text],[data-theme=light] input[type=email],[data-theme=light] input[type=password],[data-theme=light] input[type=number],[data-theme=light] input[type=search],[data-theme=light] textarea,[data-theme=light] select{color:#0f172a!important;background-color:#fff!important;border-color:#cbd5e1!important}[data-theme=light] .form-input::placeholder,[data-theme=light] input::placeholder,[data-theme=light] textarea::placeholder{color:#64748b!important}[data-theme=light] .form-input:focus,[data-theme=light] input:focus,[data-theme=light] textarea:focus,[data-theme=light] select:focus{border-color:#1d4ed8!important;box-shadow:0 0 0 3px #1d4ed826!important}[data-theme=light] .btn-secondary{color:#0f172a!important;background:#f1f5f9!important;border-color:#cbd5e1!important}[data-theme=light] .btn-secondary:hover{color:#1d4ed8!important;background:#e2e8f0!important;border-color:#94a3b8!important}[data-theme=light] .badge-primary{color:#1d4ed8!important;background:#dbeafe!important;border-color:#93c5fd!important}[data-theme=light] .badge-indigo{color:#3730a3!important;background:#e0e7ff!important;border-color:#a5b4fc!important}[data-theme=light] .badge-cyan{color:#0369a1!important;background:#e0f2fe!important;border-color:#7dd3fc!important}[data-theme=light] .badge-emerald{color:#047857!important;background:#d1fae5!important;border-color:#6ee7b7!important}[data-theme=light] .badge-amber{color:#b45309!important;background:#fef3c7!important;border-color:#fcd34d!important}[data-theme=light] div[style*="linear-gradient(180deg, rgba(20, 24, 39, 0.98)"],[data-theme=light] div[style*="linear-gradient(180deg, rgba(20, 24, 39, 0.98) 0%"]{background:#fff!important;border-color:#cbd5e1!important;box-shadow:0 24px 64px #0f172a2e,0 0 32px #1d4ed814!important}[data-theme=light] div[style*="background: rgba(0, 0, 0, 0.25)"],[data-theme=light] div[style*="background: 'rgba(0, 0, 0, 0.25)'"]{background:#f1f5f9!important;border-color:#e2e8f0!important}[data-theme=light] div[style*="background: rgba(0, 0, 0, 0.3)"],[data-theme=light] div[style*="background: 'rgba(0, 0, 0, 0.3)'"]{background:#f8fafc!important;border-color:#cbd5e1!important}[data-theme=light] div[style*="background: rgba(255, 255, 255, 0.02)"],[data-theme=light] div[style*="background: 'rgba(255, 255, 255, 0.02)'"]{background:#f8fafc!important}[data-theme=light] [style*="borderLeft: '4px solid var(--primary)'"],[data-theme=light] [style*="border-left: 4px solid var(--primary)"]{color:#1e3a8a!important;background:#eff6ff!important;border-left-color:#1d4ed8!important}[data-theme=light] [style*="borderLeft: '4px solid var(--primary)'"] strong,[data-theme=light] [style*="border-left: 4px solid var(--primary)"] strong{color:#1d4ed8!important}[data-theme=light] [style*="borderLeft: '3px solid var(--primary)'"],[data-theme=light] [style*="border-left: 3px solid var(--primary)"]{color:#1e1b4b!important;background:#eef2ff!important;border-left-color:#4f46e5!important}[data-theme=light] .lesson-sidebar,[data-theme=light] aside{background:#fff!important;border-color:#e2e8f0!important}