:root {
  --bg: #ffffff; --fg: #1d1d1f; --muted: #6e6e73; --accent: #5b3df5; --line: #e5e5ea; --card: #f5f5f7;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #000000; --fg: #f5f5f7; --muted: #98989d; --accent: #8f7bff; --line: #2c2c2e; --card: #1c1c1e; }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
main { max-width: 720px; margin: 0 auto; padding: 48px 20px 80px; }
header.site { display: flex; align-items: center; gap: 14px; margin-bottom: 32px; }
header.site img { width: 64px; height: 64px; border-radius: 14px; }
header.site .name { font-size: 24px; font-weight: 700; }
nav a { margin-right: 18px; }
a { color: var(--accent); }
h1 { font-size: 32px; line-height: 1.2; margin: 0 0 8px; }
h2 { font-size: 21px; margin: 36px 0 8px; }
p, li { color: var(--fg); }
.muted { color: var(--muted); font-size: 15px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 16px 20px; margin: 16px 0; }
details { border-top: 1px solid var(--line); padding: 12px 0; }
details:last-of-type { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; font-weight: 600; }
footer { margin-top: 56px; color: var(--muted); font-size: 14px; }