:root{--fg:#0f172a;--muted:#475569;--bg:#ffffff;--card:#f1f5f9;--accent:#0f766e;--accent2:#14b8a6;--border:#e2e8f0}
@media (prefers-color-scheme:dark){:root{--fg:#e2e8f0;--muted:#94a3b8;--bg:#0b1220;--card:#111a2b;--border:#1e293b}}
*{box-sizing:border-box}body{margin:0;font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--fg);background:var(--bg)}
header,main,footer{max-width:900px;margin:0 auto;padding:0 16px}
nav{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;padding:16px 0;border-bottom:1px solid var(--border)}
nav a{color:var(--fg);text-decoration:none;margin-left:14px}nav .brand{margin:0;font-weight:700;display:flex;align-items:center;gap:8px}
h1{font-size:2rem;line-height:1.2;margin:32px 0 12px}h2{margin-top:36px}.lead{font-size:1.1rem;color:var(--muted)}
a{color:var(--accent)}code{background:var(--card);padding:1px 5px;border-radius:4px;font-size:.92em}
pre{background:var(--card);padding:14px;border-radius:8px;overflow-x:auto;border:1px solid var(--border)}pre code{padding:0;background:none}
table{border-collapse:collapse;width:100%;margin:12px 0;display:block;overflow-x:auto}th,td{border:1px solid var(--border);padding:8px;text-align:left;vertical-align:top}th{background:var(--card)}
.cta{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0}.btn{display:inline-block;padding:10px 16px;border-radius:8px;border:1px solid var(--accent);text-decoration:none}
.btn.primary{background:var(--accent);color:#fff}.small{font-size:.85rem;color:var(--muted)}
footer{border-top:1px solid var(--border);margin-top:48px;padding:16px;font-size:.85rem;color:var(--muted)}