/* 白地に、文字とリンクだけアプリ(app/src/theme.tsx)の色を使う */
:root {
  color-scheme: light;
  --bg: #fff;
  --text: #2c241c;
  --subtle: #8b7a64;
  --border: rgba(74, 56, 38, 0.2);
  --accent: #a35a2c;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.9 "Hiragino Mincho ProN", "Yu Mincho", "Noto Serif JP", serif;
  -webkit-text-size-adjust: 100%;
}

header {
  border-bottom: 1px solid var(--border);
  padding: 28px 20px 20px;
  text-align: center;
}

.logo {
  color: inherit;
  font-size: 1.9rem;
  font-style: italic;
  letter-spacing: 0.02em;
  text-decoration: none;
}

nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px 20px;
  margin-top: 8px;
  font-size: 0.875rem;
}

nav a { color: inherit; opacity: 0.7; text-decoration: none; }
nav a[aria-current="page"] { opacity: 1; border-bottom: 1px solid currentColor; }

.lang-switch { margin: 10px 0 0; font-size: 0.8rem; }
.lang-switch a { color: inherit; opacity: 0.6; text-decoration: none; }

main {
  max-width: 42rem;
  margin: 0 auto;
  padding: 36px 20px 64px;
}

h1 { font-size: 1.6rem; line-height: 1.4; margin: 0 0 4px; }
h2 { font-size: 1.1rem; margin: 40px 0 8px; padding-top: 20px; border-top: 1px solid var(--border); }
.date { color: var(--subtle); font-size: 0.875rem; margin: 0 0 28px; }
a { color: var(--accent); }
p, li, dd { overflow-wrap: anywhere; }
ol, ul { padding-left: 1.5em; }
li + li { margin-top: 4px; }

dl { margin: 0; border-top: 1px solid var(--border); }
dl > div {
  display: grid;
  grid-template-columns: 12em 1fr;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}
dt { color: var(--subtle); font-size: 0.9rem; }
dd { margin: 0; }

footer { color: var(--subtle); font-size: 0.8rem; text-align: center; padding: 0 20px 40px; }

@media (max-width: 600px) {
  main { padding-top: 28px; }
  h1 { font-size: 1.4rem; }
  dl > div { grid-template-columns: 1fr; gap: 2px; }
}