:root {
  color-scheme: light dark;
  --bg: #fff8f0;
  --card: #ffffff;
  --text: #2b2118;
  --muted: #6b5d4f;
  --accent: #f5a623;
  --border: #efe3d3;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #181410;
    --card: #221c16;
    --text: #f3eadd;
    --muted: #b3a695;
    --accent: #ffb23e;
    --border: #2f271f;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 720px; margin: 0 auto; padding: 32px 20px 80px; }
header.site { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
header.site .logo { font-size: 30px; }
header.site .name { font-size: 20px; font-weight: 700; letter-spacing: -0.01em; }
h1 { font-size: 30px; line-height: 1.2; letter-spacing: -0.02em; margin: 24px 0 4px; }
h2 { font-size: 20px; letter-spacing: -0.01em; margin: 34px 0 8px; }
.updated { color: var(--muted); font-size: 15px; margin: 0 0 8px; }
p, li { color: var(--text); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.muted { color: var(--muted); }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px 20px;
  margin: 18px 0;
}
.note { font-size: 15px; color: var(--muted); }
nav.toc { font-size: 15px; margin: 16px 0 8px; }
nav.toc a { margin-right: 14px; }
footer.site { margin-top: 48px; padding-top: 18px; border-top: 1px solid var(--border); color: var(--muted); font-size: 14px; }