:root { color-scheme: dark light; --bg: #0b1424; --fg: #e2e8f0; --muted: #94a3b8; --accent: #22d3ee; }
@media (prefers-color-scheme: light) { :root { --bg: #f8fafc; --fg: #0f172a; --muted: #475569; --accent: #0e7490; } }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
main { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }
h1 { font-size: 1.9rem; margin: 0 0 8px; }
h2 { font-size: 1.25rem; margin-top: 2rem; }
a { color: var(--accent); }
.lead { font-size: 1.15rem; color: var(--muted); }
.meta, .nav { color: var(--muted); font-size: 0.9rem; }