:root { color-scheme: light dark; --text: #1c1c1e; --muted: #6c6c70; --accent: #1c6b58; --bg: #ffffff; --rule: #e5e5ea; }
@media (prefers-color-scheme: dark) { :root { --text: #f2f2f7; --muted: #a1a1a6; --accent: #61c3a2; --bg: #000000; --rule: #2c2c2e; } }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.55 -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif; }
main { max-width: 680px; margin: 0 auto; padding: 48px 20px 64px; }
h1 { font-size: 30px; line-height: 1.2; margin: 0 0 6px; }
h2 { font-size: 20px; margin: 36px 0 8px; }
h3 { font-size: 17px; margin: 24px 0 4px; }
p, li { margin: 0 0 12px; }
.muted { color: var(--muted); }
a { color: var(--accent); }
hr { border: 0; border-top: 1px solid var(--rule); margin: 48px 0; }
nav { font-size: 15px; margin-bottom: 32px; }
nav a { margin-right: 16px; }