:root { color-scheme: light dark; --fg: #1d1d1f; --bg: #fff; --muted: #6e6e73; --accent: #7c3aed; }
@media (prefers-color-scheme: dark) { :root { --fg: #f5f5f7; --bg: #161618; --muted: #a1a1a6; --accent: #a78bfa; } }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
main { max-width: 720px; margin: 0 auto; padding: 48px 16px; }
h1 { font-size: 2em; margin: 0 0 8px; }
h2 { margin-top: 2em; }
a { color: var(--accent); }
.muted { color: var(--muted); }
code { font-size: 0.9em; }