:root{--bg:#fbfbfc;--ink:#15171b;--muted:#646b76;--line:#e7e9ee;--code:#f2f3f6;--accent:#4f46e5}
@media (prefers-color-scheme:dark){:root{--bg:#0e1013;--ink:#e8eaee;--muted:#9aa1ad;--line:#23272e;--code:#171a1f;--accent:#8b85ff}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}
.wrap{display:grid;grid-template-columns:240px minmax(0,1fr);max-width:1180px;margin:0 auto}
nav{position:sticky;top:0;height:100vh;overflow:auto;padding:28px 20px;border-right:1px solid var(--line)}
nav .brand{font-weight:700;font-size:17px;margin:0 0 18px;display:block;color:var(--ink);text-decoration:none}
nav a{display:block;color:var(--muted);text-decoration:none;padding:5px 8px;border-radius:6px;font-size:14px}nav a:hover{color:var(--ink);background:var(--code)}
nav a.on{color:var(--ink);background:var(--code);font-weight:600}nav .sub{margin:2px 0 8px 10px}nav .sub a{font-size:13px;padding:3px 8px}
main{padding:36px 44px 80px;min-width:0}h1{font-size:30px;letter-spacing:-.015em;margin:0 0 14px}h2{font-size:21px;margin:38px 0 10px;padding-top:6px}h3{font-size:16px;margin:26px 0 8px}
a{color:var(--accent)}code{font:13px/1.5 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:var(--code);padding:1px 5px;border-radius:5px}
pre{background:var(--code);border:1px solid var(--line);border-radius:10px;padding:14px 16px;overflow:auto}pre code{background:none;padding:0}
.table{overflow:auto;margin:12px 0}table{border-collapse:collapse;width:100%;font-size:14px}th,td{border-bottom:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}th{font-weight:600;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.04em}
blockquote{margin:14px 0;padding:10px 14px;border:1px solid var(--line);border-radius:10px;color:var(--muted)}
footer{margin-top:48px;color:var(--muted);font-size:13px}
@media (max-width:860px){.wrap{grid-template-columns:1fr}nav{position:static;height:auto;border-right:0;border-bottom:1px solid var(--line)}main{padding:24px 16px 60px}}