:root{--ink:#1d1d1f;--muted:#5b5b63;--line:#e3e3e8;--bg:#f6f6f8;--card:#fff;--accent:#1f4e79;--code:#eef1f5}
@media (prefers-color-scheme:dark){:root{--ink:#ececf1;--muted:#a3a3ad;--line:#2e2e35;--bg:#121216;--card:#1b1b21;--accent:#8ab4e0;--code:#24242c}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI","Helvetica Neue",Arial,sans-serif}
main{max-width:720px;margin:0 auto;padding:40px 16px 56px}
.brand{font-weight:700;color:var(--accent);text-decoration:none;letter-spacing:.02em}
h1{font-size:28px;line-height:1.25;margin:28px 0 12px}
h2{font-size:17px;margin:28px 0 6px}
p{margin:0 0 12px}
a{color:var(--accent)}
code,pre{font:14px/1.5 ui-monospace,SFMono-Regular,Menlo,monospace;background:var(--code);border-radius:6px}
code{padding:1px 6px}
pre{padding:12px 14px;overflow-x:auto;margin:8px 0 12px}
footer{margin-top:40px;padding-top:14px;border-top:1px solid var(--line);color:var(--muted);font-size:14px}