:root { color-scheme: light dark; --text: #1d1d1f; --muted: #6e6e73; --bg: #fff; --line: #e5e5ea; --link: #0a66d8; }
@media (prefers-color-scheme: dark) { :root { --text: #f5f5f7; --muted: #a1a1a6; --bg: #000; --line: #2c2c2e; --link: #4da3ff; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, sans-serif; }
main { max-width: 680px; margin: 0 auto; padding: 40px 16px 64px; }
header { display: flex; align-items: center; gap: 12px; margin-bottom: 28px; }
header a { color: inherit; text-decoration: none; font-weight: 700; font-size: 20px; }
h1 { font-size: 34px; line-height: 1.15; margin: 0 0 6px; }
h2 { font-size: 21px; margin: 32px 0 8px; }
p, li { color: var(--text); }
.muted { color: var(--muted); font-size: 15px; }
a { color: var(--link); }
ul { padding-left: 22px; }
nav { margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--line); display: flex; gap: 20px; flex-wrap: wrap; font-size: 15px; }