:root { color-scheme: light dark; --fg:#1f2937; --bg:#ffffff; --muted:#6b7280; --accent:#7c3aed; }
@media (prefers-color-scheme: dark) { :root { --fg:#e5e7eb; --bg:#111827; --muted:#9ca3af; --accent:#a78bfa; } }
body { margin:0; background:var(--bg); color:var(--fg); font:16px/1.6 system-ui, sans-serif; }
main { max-width:720px; margin:0 auto; padding:40px 16px; }
h1 { margin-top:0; } a { color:var(--accent); } .muted { color:var(--muted); font-size:14px; }