:root{--fg:#16161a;--bg:#fff;--muted:#666;--accent:#d7263d}
@media (prefers-color-scheme:dark){:root{--fg:#eee;--bg:#0f0f12;--muted:#aaa}}
*{box-sizing:border-box}body{font:16px/1.55 -apple-system,system-ui,sans-serif;max-width:720px;margin:0 auto;padding:24px 16px;color:var(--fg);background:var(--bg)}
h1{font-size:26px}h2{font-size:19px;margin-top:28px}li{margin:4px 0}.m{color:var(--muted)}a{color:var(--accent)}
header{margin-bottom:24px}header a{color:var(--fg);text-decoration:none;font-weight:600}footer{margin-top:40px;font-size:14px}footer a{margin-right:14px}