body { font-family: system-ui, sans-serif; max-width: 600px; margin: 4rem auto; padding: 0 1rem; color: #1a1a1a; background: #fff; }
h1 { font-size: 1.5rem; margin-bottom: 0.5rem; }
p { color: #555; line-height: 1.6; }
@media (prefers-color-scheme: dark) { body { color: #eee; background: #121212; } p { color: #bbb; } }