:root{--bg:#fbfaf6;--fg:#1d1b17;--muted:#6b665c;--card:#fff;--line:#e6e1d4;--accent:#00a58e}
@media (prefers-color-scheme:dark){:root{--bg:#161512;--fg:#f1eee6;--muted:#a49f93;--card:#201f1b;--line:#33312b;--accent:#2fd0b6}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.6 -apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,sans-serif}
main{max-width:720px;margin:0 auto;padding:48px 20px 80px}
header.top{display:flex;align-items:center;gap:14px;margin-bottom:8px}
header.top img{width:56px;height:56px;border-radius:13px}
h1{font-size:2rem;line-height:1.2;margin:.2em 0}
h2{font-size:1.25rem;margin:2em 0 .4em}
p,li{color:var(--fg)}
.muted{color:var(--muted);font-size:.95rem}
a{color:var(--accent)}
nav{display:flex;gap:16px;flex-wrap:wrap;margin:18px 0 28px;font-size:.95rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 20px;margin:14px 0}
code,kbd{font:.9em ui-monospace,SFMono-Regular,Menlo,monospace;background:var(--card);border:1px solid var(--line);border-radius:6px;padding:1px 6px}
footer{margin-top:48px;color:var(--muted);font-size:.9rem}