:root {
  --bg: #faf7f0;
  --text: #2a2420;
  --muted: #6b6259;
  --accent: #3f3a34;
  --card: #ffffff;
  --rule: #ded4c2;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c1a17;
    --text: #ece6db;
    --muted: #a89f8f;
    --accent: #ece6db;
    --card: #242019;
    --rule: #3a352f;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  line-height: 1.6;
}
main {
  max-width: 680px;
  margin: 0 auto;
  padding: 32px 24px 80px;
}
h1 { font-size: 1.7rem; margin-bottom: 4px; }
.tagline, .updated { color: var(--muted); margin-bottom: 28px; }
h2 {
  font-size: 1.05rem;
  margin-top: 32px;
  margin-bottom: 8px;
  color: var(--accent);
}
p, li { color: var(--text); }
ul { padding-left: 1.2em; }
li { margin-bottom: 4px; }
a { color: var(--accent); }
.card {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 12px;
  padding: 20px 24px;
  margin-top: 12px;
}
.back {
  display: inline-block;
  margin-bottom: 16px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
}
.back:hover { text-decoration: underline; }
hr {
  border: none;
  border-top: 1px solid var(--rule);
  margin: 40px 0 24px;
}
footer { color: var(--muted); font-size: 0.85rem; }
nav.langs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 14px;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 20px;
}
nav.langs a { color: var(--muted); text-decoration: none; }
nav.langs a:hover { text-decoration: underline; }
nav.langs span.current { color: var(--accent); font-weight: 600; }
nav.langs span.sep { color: var(--rule); }