:root { --bg: #F3F2EE; --fg: #17171A; --sec: #6B6A66; --line: rgba(0,0,0,.1); color-scheme: light; }
@media (prefers-color-scheme: dark) { :root { --bg: #09090B; --fg: #EDEDEF; --sec: #8E8E93; --line: rgba(255,255,255,.1); color-scheme: dark; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", Inter, system-ui, sans-serif; -webkit-font-smoothing: antialiased; }
main { max-width: 640px; margin: 0 auto; padding: 56px max(20px, env(safe-area-inset-left)) 80px; }
header { display: flex; align-items: center; gap: 14px; margin-bottom: 40px; }
header img { width: 48px; height: 48px; border-radius: 11px; }
header a { color: inherit; text-decoration: none; font-weight: 600; font-size: 20px; }
h1 { font-size: 34px; line-height: 1.15; letter-spacing: -.02em; margin: 0 0 8px; text-wrap: balance; }
h2 { font-size: 19px; margin: 36px 0 6px; }
p, li { color: var(--fg); }
.sec { color: var(--sec); font-size: 15px; }
ul { padding-left: 20px; }
a { color: inherit; }
footer { margin-top: 56px; padding-top: 20px; border-top: 1px solid var(--line); display: flex; gap: 20px; font-size: 15px; color: var(--sec); }
footer a { color: var(--sec); }