:root { color-scheme: light dark; --fg: #1d1d1f; --muted: #6e6e73; --bg: #fff; --card: #f5f5f7; --accent: #0a84ff; }
@media (prefers-color-scheme: dark) { :root { --fg: #f5f5f7; --muted: #a1a1a6; --bg: #000; --card: #1c1c1e; } }
* { box-sizing: border-box; }
body { margin: 0; padding: 0 16px; background: var(--bg); color: var(--fg); font: 17px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif; }
main { max-width: 640px; margin: 0 auto; padding: 48px 0 64px; }
h1 { font-size: 32px; line-height: 1.2; margin: 0 0 4px; letter-spacing: -0.3px; }
h2 { font-size: 20px; margin: 32px 0 8px; }
.muted { color: var(--muted); margin: 0 0 24px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.card { background: var(--card); border-radius: 14px; padding: 16px 20px; margin: 16px 0; }
footer { margin-top: 48px; color: var(--muted); font-size: 14px; }
footer a { margin-right: 16px; }