:root { color-scheme: light dark; --fg: #1a1a1a; --bg: #ffffff; --link: #0b57d0; }
@media (prefers-color-scheme: dark) { :root { --fg: #e8e8e8; --bg: #141414; --link: #8ab4f8; } }
html, body { margin: 0; background: var(--bg); color: var(--fg); }
body { font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }
main { max-width: 40rem; margin: 0 auto; padding: 4rem 16px; }
h1 { font-size: 1.75rem; margin: 0 0 1rem; }
a { color: var(--link); }