:root { --bg: #ffffff; --fg: #1c1d26; --muted: #5f6070; --accent: #4a42d6; --line: #e4e4ee; }
@media (prefers-color-scheme: dark) { :root { --bg: #121218; --fg: #ececf3; --muted: #9c9cb0; --accent: #9d97ff; --line: #2a2a36; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
main { max-width: 720px; margin: 0 auto; padding: 48px 16px 64px; }
header { display: flex; align-items: center; gap: 16px; margin-bottom: 32px; }
header img { width: 64px; height: 64px; border-radius: 14px; }
h1 { font-size: 32px; line-height: 1.2; margin: 0; }
h2 { font-size: 21px; margin: 36px 0 8px; }
p, li { color: var(--fg); }
.muted, footer { color: var(--muted); }
a { color: var(--accent); }
section { border-top: 1px solid var(--line); }
footer { margin-top: 48px; font-size: 15px; }