:root {
  --bg: #f7f4ef;
  --card: #fffdfa;
  --text: #2f2119;
  --muted: #6c5345;
  --accent: #b24b1f;
  --border: #ddcdbf;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic UI",
    "Noto Sans JP", "Segoe UI", sans-serif;
  line-height: 1.75;
}

.container {
  max-width: 880px;
  margin: 0 auto;
  padding: 24px 16px 56px;
}

.header {
  margin-bottom: 20px;
}

h1 {
  margin: 0 0 6px;
  font-size: 30px;
  line-height: 1.3;
}

h2 {
  margin: 0 0 8px;
  font-size: 22px;
  line-height: 1.35;
}

h3 {
  margin: 20px 0 8px;
  font-size: 18px;
  line-height: 1.4;
}

p {
  margin: 0 0 12px;
}

small,
.meta {
  color: var(--muted);
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 14px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
}

a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 700;
}

a:hover {
  text-decoration: underline;
}

ul {
  margin: 0 0 12px 20px;
  padding: 0;
}

li {
  margin-bottom: 6px;
}

.footer-nav {
  margin-top: 22px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}