:root{--bg: #04070f;--surface: #080d1a;--card: rgba(10, 18, 40, .75);--cyan: #00cfff;--violet: #7c3aed;--text: #e8f0ff;--muted: #6b7a99;--border: rgba(0, 207, 255, .1);--border-hover: rgba(0, 207, 255, .3)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background-color:var(--bg);color:var(--text);font-family:Inter,sans-serif;overflow-x:hidden;line-height:1.6}h1,h2,h3,h4,h5{font-family:Space Grotesk,sans-serif;line-height:1.15}.gradient-text{background:linear-gradient(135deg,var(--cyan) 0%,var(--violet) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.gradient-text-warm{background:linear-gradient(135deg,#00cfff,#a855f7,#ec4899);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.grid-bg{background-image:linear-gradient(rgba(0,207,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(0,207,255,.03) 1px,transparent 1px);background-size:56px 56px}.glass{background:var(--card);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--border);border-radius:16px;transition:border-color .3s ease,box-shadow .3s ease}.glass:hover{border-color:var(--border-hover);box-shadow:0 0 30px #00cfff14}.glow-blob{position:absolute;border-radius:50%;filter:blur(80px);pointer-events:none;opacity:.25}.reveal{opacity:0;transform:translateY(36px);transition:opacity .75s ease,transform .75s ease}.reveal.visible{opacity:1;transform:translateY(0)}.reveal-delay-1{transition-delay:.1s}.reveal-delay-2{transition-delay:.2s}.reveal-delay-3{transition-delay:.3s}.reveal-delay-4{transition-delay:.4s}.reveal-delay-5{transition-delay:.5s}section{position:relative;padding:6rem 1.5rem}.container{max-width:1140px;margin:0 auto;width:100%}.btn-primary{display:inline-flex;align-items:center;gap:.5rem;padding:.85rem 2rem;background:linear-gradient(135deg,var(--cyan),var(--violet));color:#fff;font-family:Space Grotesk,sans-serif;font-weight:600;font-size:.95rem;border-radius:999px;border:none;cursor:pointer;text-decoration:none;transition:opacity .2s ease,transform .2s ease,box-shadow .3s ease;box-shadow:0 0 20px #00cfff33}.btn-primary:hover{opacity:.9;transform:translateY(-1px);box-shadow:0 0 36px #00cfff59}.btn-secondary{display:inline-flex;align-items:center;gap:.5rem;padding:.85rem 2rem;background:transparent;color:var(--text);font-family:Space Grotesk,sans-serif;font-weight:600;font-size:.95rem;border-radius:999px;border:1px solid var(--border-hover);cursor:pointer;text-decoration:none;transition:background .2s ease,border-color .2s ease,transform .2s ease}.btn-secondary:hover{background:#00cfff0f;border-color:var(--cyan);transform:translateY(-1px)}.chip{display:inline-flex;align-items:center;gap:.4rem;padding:.35rem 1rem;background:#00cfff14;border:1px solid rgba(0,207,255,.2);border-radius:999px;font-size:.78rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--cyan);margin-bottom:1.25rem}.section-title{font-size:clamp(2rem,4vw,3rem);font-weight:800;margin-bottom:1rem}.section-sub{font-size:1.1rem;color:var(--muted);max-width:560px}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--bg)}::-webkit-scrollbar-thumb{background:#00cfff40;border-radius:3px}.auth-nav{position:fixed;top:0;right:0;z-index:9000;padding:.75rem 1.5rem;display:flex;align-items:center;gap:.75rem;font-family:Space Grotesk,sans-serif;font-size:.85rem}.auth-signin-link,.auth-signout-btn{color:var(--cyan);text-decoration:none;padding:.4rem 1rem;border:1px solid var(--border-hover);border-radius:999px;transition:background .2s,border-color .2s;cursor:pointer;font-family:Space Grotesk,sans-serif;font-size:.85rem;background:none}.auth-signin-link:hover,.auth-signout-btn:hover{background:#00cfff14;border-color:var(--cyan)}.auth-email{color:var(--muted);max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.auth-dropdown-btn{display:flex;align-items:center;gap:.4rem;padding:.35rem .75rem;background:none;border:1px solid transparent;border-radius:999px;cursor:pointer;font-family:Space Grotesk,sans-serif;font-size:.82rem;color:var(--text);transition:border-color .2s,background .2s}.auth-dropdown-btn:hover{border-color:#00cfff4d;background:#00cfff0a}#auth-chevron{color:var(--muted);transition:transform .2s ease;flex-shrink:0}.auth-tier-chip{font-size:.68rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--cyan);border:1px solid rgba(0,207,255,.35);border-radius:4px;padding:.1rem .35rem;line-height:1.4;max-width:100px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex-shrink:0}@media (max-width: 1100px){.auth-user-email-short{display:none}}.auth-user-email-short{color:var(--muted);max-width:120px;min-width:0;flex-shrink:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.auth-dropdown-panel{position:absolute;right:0;top:calc(100% + 8px);min-width:220px;background:#04070ff7;border:1px solid rgba(0,207,255,.15);border-radius:12px;padding:1rem;z-index:200;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:0 8px 32px #00000080}.auth-dd-label{font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:.5rem;font-family:Space Grotesk,sans-serif}.auth-dd-aiq{display:flex;align-items:baseline;gap:.5rem}.auth-aiq-score{font-family:JetBrains Mono,monospace;font-size:1.5rem;font-weight:700;color:var(--cyan)}.auth-aiq-tier{font-size:.8rem;color:var(--muted);font-family:Space Grotesk,sans-serif}.auth-dd-divider{height:1px;background:#00cfff14;margin:.75rem 0}.auth-dd-progress-list{display:flex;flex-direction:column;gap:.1rem}.auth-dd-link{text-decoration:none;border-radius:6px;transition:background .15s;margin:0 -.4rem;padding-left:.4rem;padding-right:.4rem}.auth-dd-link:hover{background:#00cfff0f}.auth-dd-aiq.auth-dd-link{align-items:center;padding-top:.25rem;padding-bottom:.25rem}.auth-dd-progress-row{display:flex;justify-content:space-between;align-items:center;padding:.25rem .4rem;margin:0 -.4rem}.auth-dd-course-name{font-size:.82rem;font-family:Space Grotesk,sans-serif;color:var(--text)}.auth-dd-fraction{font-family:JetBrains Mono,monospace;font-size:.8rem;color:var(--muted)}.auth-dd-signout{width:100%;text-align:left;background:none;border:none;cursor:pointer;font-family:Space Grotesk,sans-serif;font-size:.85rem;color:var(--muted);padding:.2rem 0;transition:color .2s}.auth-dd-signout:hover{color:var(--cyan)}.auth-tier-chip--admin{color:var(--violet);border-color:#7c3aed80;background:#7c3aed1f}.auth-dd-admin-link{display:flex;align-items:center;gap:.45rem;text-decoration:none;font-family:Space Grotesk,sans-serif;font-size:.85rem;font-weight:600;color:var(--violet);padding:.2rem 0;transition:color .2s}.auth-dd-admin-link:hover{color:#a855f7}@media (max-width: 768px){.auth-nav{display:none}}