:root {
  --bg: #fbf8f3;
  --surface: #ffffff;
  --text: #24211d;
  --muted: #6b645b;
  --line: #e6dfd4;
  --accent: #9e4f35;
  --max: 720px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #181614;
    --surface: #211e1b;
    --text: #efe9e1;
    --muted: #a69d92;
    --line: #36312b;
    --accent: #e39a7f;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", "Meiryo", sans-serif;
  line-height: 1.8;
  font-size: 16px;
}

.site-header,
main,
.site-footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 20px;
}

.site-header { padding-top: 24px; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.hero { padding: 72px 0 48px; }

.eyebrow {
  display: inline-block;
  margin: 0 0 16px;
  padding: 2px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 13px;
}

h1 {
  margin: 0 0 20px;
  font-size: clamp(28px, 6vw, 40px);
  line-height: 1.4;
  letter-spacing: 0.01em;
}

.lead { margin: 0; color: var(--muted); font-size: 17px; }

.block {
  margin: 0 0 32px;
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
}

h2 { margin: 0 0 16px; font-size: 18px; }

.facts { margin: 0; }

.facts div {
  display: grid;
  grid-template-columns: 5em 1fr;
  gap: 12px;
  padding: 10px 0;
  border-top: 1px solid var(--line);
}

.facts div:first-child { border-top: 0; padding-top: 0; }

.facts dt { color: var(--muted); }

.facts dd { margin: 0; }

.block p { margin: 0 0 8px; }

.mail { font-size: 18px; font-weight: 600; }

a { color: var(--accent); }

.site-footer {
  padding-top: 8px;
  padding-bottom: 40px;
  color: var(--muted);
  font-size: 13px;
}

.doc { padding-top: 48px; padding-bottom: 24px; }

.doc h1 { font-size: clamp(24px, 5vw, 32px); margin-bottom: 16px; }

.doc h2 { margin: 32px 0 8px; }

.doc p, .doc li { margin: 0 0 8px; }

.doc ul { padding-left: 1.4em; margin: 0 0 8px; }

.doc .facts { margin-top: 24px; }

.doc .facts div { grid-template-columns: 11em 1fr; }

.draft {
  margin: 0 0 24px;
  padding: 12px 16px;
  border: 1px dashed var(--line);
  border-radius: 10px;
  color: var(--muted);
  font-size: 14px;
}

.updated { margin-top: 32px; color: var(--muted); font-size: 14px; }

.link-list li { margin-bottom: 4px; }

.legal-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  margin-bottom: 12px;
}

.legal-nav a { display: inline-block; padding: 4px 0; color: var(--muted); }

@media (max-width: 480px) {
  .hero { padding: 48px 0 32px; }
  .block { padding: 20px; }
  .facts div,
  .doc .facts div { grid-template-columns: 1fr; gap: 0; }
}