:root{--bg:#090b0f;--panel:#11151d;--line:#262d3a;--gold:#c8a96e;--text:#eee9df;--muted:#aaa397}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--text);margin:0;font-family:Inter,ui-sans-serif,system-ui,sans-serif}a{color:inherit;text-decoration:none}.shell{max-width:1180px;margin:0 auto;padding:32px}.nav{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;padding:18px 32px;display:flex}.brand{letter-spacing:.04em;font-family:Georgia,serif}.brand b{color:var(--gold)}.hero{padding:88px 0 56px}.eyebrow{color:var(--gold);letter-spacing:.18em;text-transform:uppercase;font:700 12px ui-monospace}.hero h1{max-width:850px;margin:12px 0;font-family:Georgia,serif;font-size:56px}.hero p{color:var(--muted);max-width:760px;font-size:20px;line-height:1.6}.button{border:1px solid var(--gold);color:var(--gold);margin-top:20px;padding:12px 18px;font-weight:700;display:inline-block}.grid{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;display:grid}.card{background:var(--panel);border:1px solid var(--line);min-height:180px;padding:22px}.card h2,.card h3{font-family:Georgia,serif}.muted{color:var(--muted)}.course-head{justify-content:space-between;align-items:flex-start;gap:24px;margin:36px 0;display:flex}.deck-frame{border:1px solid var(--line);background:#000;width:100%;height:78vh}.tag{letter-spacing:.12em;color:var(--gold);text-transform:uppercase;font:700 11px ui-monospace}.locked{opacity:.6}.footer{border-top:1px solid var(--line);color:var(--muted);margin-top:64px;padding:24px 32px;font-size:13px}@media (max-width:700px){.hero h1{font-size:39px}.shell{padding:22px}.nav{padding:16px 22px}.course-head{display:block}}