:root{--bg:#fff;--ink:#1f2430;--muted:#6b7280;--red:#B2182B;--line:#e5e7eb}
@media (prefers-color-scheme:dark){:root{--bg:#0f1116;--ink:#f1f3f5;--muted:#9aa3b2;--line:#262a33}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 -apple-system,BlinkMacSystemFont,"Helvetica Neue",Helvetica,Arial,sans-serif}
header{background:var(--red);color:#fff;padding:18px 24px}header a{color:#fff;text-decoration:none;font-weight:700;font-size:22px;letter-spacing:-.01em}
main{max-width:760px;margin:0 auto;padding:28px 24px 64px}h1{font-size:30px;margin:.2em 0 .4em}h2{font-size:20px;margin:1.6em 0 .4em}
p,li{color:var(--ink)}.muted{color:var(--muted)}nav{margin:4px 0 24px}nav a{color:var(--red);margin-right:18px}a{color:var(--red)}
footer{border-top:1px solid var(--line);margin-top:40px;padding-top:16px;color:var(--muted);font-size:14px}code{font-size:15px}