body{font:16px/1.6 system-ui,-apple-system,Segoe UI,sans-serif;max-width:42rem;margin:0 auto;padding:2rem 1rem;color:#1a1a1a;background:#fff}
h1,h2{line-height:1.25}
a{color:#0a5cc4}
@media(prefers-color-scheme:dark){body{background:#111;color:#eee}a{color:#6cb2ff}}