:root{--bg:#0a0a0b;--surface:#121214;--raised:#1a1a1d;--border:hsla(0,0%,100%,.08);--border-strong:hsla(0,0%,100%,.16);--text:#f5f5f4;--muted:#a1a1a8;--dim:#6b6b72;--gold:#d4a84b;--gold-dim:rgba(212,168,75,.18);--gold-hover:#e0b85c;--danger:#e05b4b;--radius:10px;--radius-lg:14px;--max:960px}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{color-scheme:dark}body{background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,sans-serif;line-height:1.6;min-height:100vh;-webkit-font-smoothing:antialiased;font-feature-settings:"ss01","cv11"}a{color:var(--gold);text-decoration:none}a:hover{color:var(--gold-hover)}.mono,code,pre{font-family:JetBrains Mono,ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.92em}code{border-radius:4px;padding:2px 6px}code,pre{background:var(--raised)}pre{border:1px solid var(--border);border-radius:var(--radius);font-size:13px;line-height:1.55;overflow-x:auto;padding:16px}h1,h2,h3{letter-spacing:-.02em;line-height:1.2}h1{font-size:clamp(32px,5vw,54px);font-weight:800}h2{font-size:clamp(24px,3vw,34px);font-weight:700}h3{font-size:18px;font-weight:600}p{color:var(--muted)}p.lead{color:var(--text);font-size:18px}.container{margin:0 auto;max-width:var(--max);padding:0 24px}.nav{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#0a0a0bd9;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}.nav-inner{align-items:center;display:flex;gap:16px;justify-content:space-between;margin:0 auto;max-width:var(--max);padding:14px 24px}.brand{color:var(--text);font-size:15px;font-weight:800;letter-spacing:-.01em}.brand span{color:var(--gold)}.nav-links{display:flex;gap:20px}.nav-links a{color:var(--muted);font-size:14px;font-weight:500}.nav-links a:hover{color:var(--text)}.btn{align-items:center;border:1px solid transparent;border-radius:var(--radius);cursor:pointer;display:inline-flex;font:inherit;font-size:15px;font-weight:600;gap:8px;justify-content:center;padding:12px 22px;text-decoration:none;transition:all .15s ease}.btn-primary{background:var(--gold);color:#15110a}.btn-primary:hover{background:var(--gold-hover);color:#15110a}.btn-secondary{background:transparent;border-color:var(--border-strong);color:var(--text)}.btn-secondary:hover{border-color:var(--gold);color:var(--gold)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px}.card-featured{border-color:var(--gold);box-shadow:0 0 0 1px var(--gold-dim);position:relative}.card-featured:before{background:var(--gold);border-radius:4px;color:#15110a;content:"Most Popular";font-size:11px;font-weight:700;left:24px;letter-spacing:.08em;padding:3px 10px;position:absolute;text-transform:uppercase;top:-10px}.hero{padding:80px 0 60px}.eyebrow{color:var(--gold);font-size:12px;font-weight:700;letter-spacing:.14em;margin-bottom:16px;text-transform:uppercase}.hero p.lead{margin-top:20px;max-width:620px}.hero .cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:36px}.tiers{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));padding:40px 0 80px}.tier-medal{font-size:28px;margin-bottom:12px}.tier h2{font-size:22px;margin-bottom:4px}.tier .price{color:var(--gold);font-family:JetBrains Mono,monospace;font-size:28px;font-weight:600;margin:16px 0 4px}.tier .price-note{color:var(--dim);font-size:13px;margin-bottom:20px}.tier ul{list-style:none;margin:16px 0 24px}.tier li{color:var(--muted);font-size:14px;padding:6px 0 6px 22px;position:relative}.tier li:before{color:var(--gold);content:"→";left:0;position:absolute}.tier .btn{width:100%}.form{display:grid;gap:16px;max-width:480px}.field{display:grid;gap:6px}.field label{color:var(--text);font-size:13px;font-weight:600;letter-spacing:.01em}.field input{background:var(--raised);border:1px solid var(--border);border-radius:var(--radius);color:var(--text);font:inherit;font-size:15px;padding:12px 14px;transition:border-color .15s ease}.field input:focus{border-color:var(--gold);box-shadow:0 0 0 3px var(--gold-dim);outline:none}.field-hint{color:var(--dim);font-size:13px}.form-error{color:var(--danger);font-size:14px}.modules{display:grid;gap:10px;margin-top:32px}.module{align-items:center;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);display:flex;gap:16px;padding:16px 20px}.module-num{color:var(--gold);font-family:JetBrains Mono,monospace;font-size:14px;min-width:28px}.module-title{color:var(--text);font-size:15px;font-weight:600}.module-time{color:var(--dim);font-size:13px;margin-left:auto}.footer{border-top:1px solid var(--border);margin-top:80px;padding:32px 0;text-align:center}.footer p{color:var(--dim);font-size:13px}.lesson{margin:0 auto;max-width:720px;padding:60px 24px 100px}.lesson h1{margin-bottom:12px}.lesson .lesson-meta{color:var(--dim);font-family:JetBrains Mono,monospace;font-size:13px;margin-bottom:40px}.lesson h2{margin:40px 0 16px}.lesson p{color:var(--text);margin-bottom:16px}.lesson ul{color:var(--muted);margin:16px 0 24px 24px}.lesson li{margin-bottom:8px}.callout{background:var(--gold-dim);border-left:3px solid var(--gold);border-radius:0 var(--radius) var(--radius) 0;margin:24px 0;padding:16px 20px}.callout p{color:var(--text);margin:0}.lesson-nav{border-top:1px solid var(--border);display:flex;gap:16px;justify-content:space-between;margin-top:60px;padding-top:24px}@media(max-width:640px){.hero{padding:56px 0 40px}.nav-links{gap:14px}.nav-links a{font-size:13px}}