:root {
  --bg: #fbf9f5;
  --card: #ffffff;
  --text: #33312e;
  --muted: #6b6760;
  --accent: #7a9e7e;
  --accent-dark: #5c7d60;
  --border: #e7e2d8;
  --maxw: 720px;
}

* { box-sizing: border-box; }

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

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

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

header.site {
  background: var(--accent);
  color: #fff;
}
header.site .inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
header.site a.brand {
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
}
header.site nav a {
  color: #fff;
  text-decoration: none;
  margin-left: 14px;
  font-size: 0.9rem;
  opacity: 0.95;
}
header.site nav a:hover { text-decoration: underline; }

main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 28px 20px 60px;
}

.hero {
  text-align: center;
  padding: 36px 16px 8px;
}
.hero h1 {
  font-size: 1.6rem;
  margin: 0 0 10px;
}
.hero p.lead {
  color: var(--muted);
  margin: 0 auto;
  max-width: 36em;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px 20px;
  margin: 18px 0;
}

.links-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 8px;
}
.links-grid a {
  display: block;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  text-decoration: none;
  color: var(--text);
}
.links-grid a:hover { border-color: var(--accent); }
.links-grid a strong { display: block; color: var(--accent-dark); }
.links-grid a span { font-size: 0.85rem; color: var(--muted); }

h1.page-title { font-size: 1.45rem; margin-top: 0; }
h2 { font-size: 1.15rem; margin-top: 1.8em; }
h3 { font-size: 1rem; }

.updated { color: var(--muted); font-size: 0.85rem; }

.faq dt { font-weight: 700; margin-top: 1.2em; }
.faq dd { margin: 4px 0 0; color: var(--text); }

footer.site {
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.82rem;
  text-align: center;
  padding: 28px 20px 40px;
}
footer.site a { color: var(--muted); margin: 0 8px; }

@media (max-width: 480px) {
  .links-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 1.35rem; }
}