:root {
  --bg: #fbfbfd;
  --card: #ffffff;
  --fg: #1d1d1f;
  --muted: #6e6e73;
  --line: #e3e3e8;
  --accent: #7c5cff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f0f14;
    --card: #17171f;
    --fg: #f2f2f7;
    --muted: #9a9aa6;
    --line: #2a2a35;
    --accent: #9d84ff;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}
.wrap { max-width: 720px; margin: 0 auto; padding: 32px 20px 72px; }
header.site { text-align: center; margin-bottom: 28px; }
header.site .logo { font-size: 56px; line-height: 1; }
header.site h1 { font-size: 26px; margin: 12px 0 2px; letter-spacing: -0.01em; }
header.site .tag { color: var(--muted); margin: 0; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 28px 26px;
}
h1.doc { font-size: 24px; letter-spacing: -0.01em; margin: 0 0 4px; }
.updated { color: var(--muted); font-size: 14px; margin: 0 0 22px; }
h2 { font-size: 18px; margin: 26px 0 8px; letter-spacing: -0.01em; }
p, li { color: var(--fg); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
ul { padding-left: 20px; }
li { margin: 4px 0; }
.nav { text-align: center; margin-top: 26px; font-size: 15px; }
.nav a { margin: 0 10px; }
footer.site { text-align: center; color: var(--muted); font-size: 13px; margin-top: 34px; }
.home-links { display: flex; flex-direction: column; gap: 12px; max-width: 320px; margin: 8px auto 0; }
.home-links a {
  display: block; text-align: center; padding: 14px 18px;
  border: 1px solid var(--line); border-radius: 12px; background: var(--card);
  color: var(--fg); font-weight: 600;
}