:root{--bg:#ffffff;--fg:#111111;--muted:#555555}@media (prefers-color-scheme:dark){:root{--bg:#111111;--fg:#f2f2f2;--muted:#a0a0a0}}body{margin:0;background:var(--bg);color:var(--fg);font-family:system-ui,sans-serif}main{max-width:40rem;margin:0 auto;padding:4rem 1rem}p{color:var(--muted)}a{color:inherit}