:root {
  color-scheme: light;
  --ink: #241f19;
  --muted: #6f6254;
  --line: #ded5ca;
  --paper: #fffdf9;
  --accent: #9e4e2f;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--ink);
  background: #f3eee8;
  font: 16px/1.65 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

main {
  width: min(900px, calc(100% - 32px));
  margin: 32px auto;
  padding: clamp(24px, 6vw, 64px);
  background: var(--paper);
  border: 1px solid var(--line);
}

h1, h2, h3 { line-height: 1.25; }
h1 { margin: 0 0 8px; font-size: clamp(2rem, 6vw, 3.25rem); }
h2 { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line); font-size: 1.65rem; }
h3 { margin-top: 32px; font-size: 1.15rem; }
a { color: var(--accent); }

.version {
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.notice {
  margin: 24px 0 40px;
  padding: 18px;
  color: var(--muted);
  border: 1px solid var(--line);
  background: #faf6f0;
}

.toc { display: flex; gap: 16px; flex-wrap: wrap; margin: 24px 0; }

footer {
  margin-top: 56px;
  padding-top: 24px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 0.9rem;
}

@media print {
  body { background: white; }
  main { width: 100%; margin: 0; padding: 0; border: 0; }
  a { color: inherit; }
}