:root{--bg:#090b12;--surface:#111522;--line:#252b3b;--text:#edf1ff;--muted:#9ba7bd;--violet:#8b5cf6;--cyan:#67e8f9}*{box-sizing:border-box}html{background:var(--bg)}body{background:radial-gradient(circle at 80% 0,#1a1740 0,transparent 28rem),var(--bg);color:var(--text);margin:0;font-family:Arial,Helvetica,sans-serif}.shell{min-height:100vh}.topbar{border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);z-index:2;background:#0a0d15cc;justify-content:space-between;align-items:center;height:68px;padding:0 max(24px,50vw - 720px);display:flex;position:sticky;top:0}.brand{color:#fff;font-size:18px;font-weight:800;text-decoration:none}.brand span{color:#b9a5ff}.topbar nav{gap:22px;display:flex}.topbar nav a{color:var(--muted);font-size:14px;text-decoration:none}.topbar nav a:hover,.sidebar a:hover{color:#fff}.layout{grid-template-columns:252px minmax(0,1fr);max-width:1440px;margin:auto;display:grid}.sidebar{border-right:1px solid var(--line);height:calc(100vh - 68px);padding:30px 20px;position:sticky;top:68px;overflow:auto}.sidebar section{margin-bottom:26px}.sidebar p,.eyebrow{text-transform:uppercase;letter-spacing:.13em;color:#a78bfa;margin:0 0 9px;font-size:10px;font-weight:700}.sidebar a{color:var(--muted);border-radius:7px;padding:7px 9px;font-size:13px;text-decoration:none;display:block}.home,.article{width:min(100%,1050px);padding:72px 56px 100px}.home h1,.article h1{letter-spacing:-.045em;max-width:800px;margin:0;font-size:clamp(36px,5vw,62px);line-height:1.06}.intro{max-width:760px;color:var(--muted);margin:22px 0 30px;font-size:18px;line-height:1.7}.actions{gap:12px;display:flex}.actions a{background:var(--violet);color:#fff;border-radius:9px;padding:12px 17px;font-size:14px;font-weight:700;text-decoration:none}.actions .secondary{border:1px solid var(--line);color:var(--text);background:0 0}.cards{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:64px;display:grid}.card{border:1px solid var(--line);background:linear-gradient(145deg,#151a2a,#0f1320);border-radius:13px;padding:22px;text-decoration:none;transition:all .18s;display:block}.card:hover{border-color:#8b5cf6;transform:translateY(-2px)}.card p{color:#a78bfa;text-transform:uppercase;letter-spacing:.1em;font-size:10px;font-weight:700}.card h2{color:var(--text);margin:8px 0;font-size:18px}.card span{color:var(--muted);font-size:14px;line-height:1.55}.article{max-width:860px}.article h1{font-size:48px}.article section{border-top:1px solid var(--line);padding:30px 0}.article h2{margin:0 0 13px;font-size:24px}.article section p{color:var(--muted);margin:10px 0;line-height:1.75}.article pre{border:1px solid var(--line);color:var(--cyan);background:#060810;border-radius:10px;padding:17px;font-size:13px;line-height:1.55;overflow:auto}@media (max-width:800px){.topbar{padding:0 18px}.topbar nav{gap:12px}.layout{display:block}.sidebar{border-right:0;border-bottom:1px solid var(--line);height:auto;padding:18px;display:none;position:static}.home,.article{padding:48px 22px}.cards{grid-template-columns:1fr}.article h1{font-size:37px}}