:root{--bg:#f7f7f5;--fg:#1b1d21;--mute:#5b616b;--line:#dcdcd6;--acc:#0b5cad}
@media (prefers-color-scheme:dark){:root{--bg:#121417;--fg:#e8e9ec;--mute:#a2a8b2;--line:#2b2f36;--acc:#6aa8ff}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
main{max-width:760px;margin:0 auto;padding:40px 16px 64px}h1{font-size:1.9rem;line-height:1.2;margin:0 0 8px}
h2{font-size:1.2rem;margin:32px 0 8px}p,li{color:var(--fg)}.mute{color:var(--mute)}a{color:var(--acc)}
header{border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:8px}nav a{margin-right:16px}
footer{border-top:1px solid var(--line);margin-top:48px;padding-top:16px;font-size:.9rem;color:var(--mute)}
code{font-size:.9em;background:rgba(127,127,127,.12);padding:1px 5px;border-radius:4px}