:root{--background:#fff;--foreground:#171717;--muted:#666;--accent:#b3261e}@media (prefers-color-scheme:dark){:root{--background:#0a0a0a;--foreground:#ededed;--muted:#9a9a9a;--accent:#ff6b61}}*{box-sizing:border-box}body{color:var(--foreground);background:var(--background);margin:0;font-family:system-ui,-apple-system,Segoe UI,sans-serif;line-height:1.5}main{max-width:36rem;margin:0 auto;padding:4rem 1rem}