:root {
  color-scheme: light;
  --bg: #f5f0e8;
  --card: #fffdf9;
  --ink: #2b241c;
  --muted: #6b6258;
  --accent: #d4a017;
  --line: #e6ddd1;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 24px 20px 48px;
}

header {
  margin-bottom: 24px;
}

h1 {
  font-size: 1.75rem;
  margin: 0 0 8px;
}

.lead {
  color: var(--muted);
  margin: 0;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin: 20px 0 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

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

nav a[aria-current="page"] {
  color: var(--accent);
}

main {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px;
}

h2 {
  font-size: 1.125rem;
  margin: 28px 0 8px;
}

h2:first-child {
  margin-top: 0;
}

ul {
  padding-left: 1.25rem;
}

a {
  color: #0a66c2;
}

footer {
  margin-top: 24px;
  color: var(--muted);
  font-size: 0.875rem;
}