:root{color-scheme:light dark;font-family:system-ui,sans-serif}
body{margin:0;min-height:100vh;display:grid;place-items:center;background:#f6f4ef;color:#1c1b19}
main{max-width:34rem;padding:2rem;text-align:center}
button{font:inherit;padding:.7rem 1.2rem;border:0;border-radius:.6rem;background:#c15f3c;color:#fff}
@media (prefers-color-scheme:dark){body{background:#1c1b19;color:#f6f4ef}}