body{font-family:-apple-system,system-ui,sans-serif;max-width:720px;margin:0 auto;padding:24px 16px;line-height:1.6;color:#1c1c1e;background:#fff}
@media(prefers-color-scheme:dark){body{color:#f2f2f7;background:#1c1c1e}a{color:#64b5f6}}
nav{margin-bottom:24px}nav a{margin-right:16px}
h1{margin-top:0}h2{margin-top:32px}
hr{margin:40px 0;border:0;border-top:1px solid #8884}