:root{--bg:#fafaf9;--fg:#1c1917;--muted:#57534e}@media (prefers-color-scheme:dark){:root{--bg:#1c1917;--fg:#f5f5f4;--muted:#a8a29e}}body{background:var(--bg);color:var(--fg);margin:0;font:16px/1.5 system-ui,sans-serif}main{max-width:40rem;margin:0 auto;padding:3rem 1rem}p{color:var(--muted)}