:root { --bg: #ffffff; --fg: #1c1c1e; --muted: #6e6e73; --accent: #4f46e5; --card: #f5f5f7; --line: #e5e5ea; }
@media (prefers-color-scheme: dark) { :root { --bg: #000; --fg: #f5f5f7; --muted: #a1a1a6; --accent: #8b8cff; --card: #1c1c1e; --line: #2c2c2e; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif; }
main { max-width: 720px; margin: 0 auto; padding: 32px 20px 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; }
.logo { width: 40px; height: 40px; border-radius: 10px; background: linear-gradient(135deg, #22c1c3, #4f46e5); display: grid; place-items: center; color: #fff; font-size: 22px; }
h1 { font-size: 34px; line-height: 1.15; margin: 8px 0 12px; }
h2 { font-size: 21px; margin: 32px 0 8px; }
p, li { color: var(--fg); }
.muted { color: var(--muted); }
a { color: var(--accent); }
.card { background: var(--card); border-radius: 14px; padding: 18px 20px; margin: 16px 0; }
ul { padding-left: 22px; }
nav.footer { border-top: 1px solid var(--line); margin-top: 48px; padding-top: 16px; display: flex; gap: 18px; flex-wrap: wrap; font-size: 15px; }
.code { font: 600 28px/1 ui-monospace, Menlo, monospace; letter-spacing: 4px; }