body { max-width: 640px; margin: 40px auto; padding: 0 20px; font-family: -apple-system, system-ui, sans-serif; line-height: 1.6; color: #1b1b1f; }
h1 { letter-spacing: -0.5px; } a { color: #4f46e5; }
@media (prefers-color-scheme: dark) { body { background: #111; color: #eee; } a { color: #8b83f5; } }