:root {
  color-scheme: light dark;
  --bg: #FAFAF9;
  --fg: #1A1A1A;
  --muted: #5F5F5F;
  --accent: #B45309;
  --accent-bg: #FEF3C7;
  --border: #E5E5E5;
  --card: #FFFFFF;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0B0B0B;
    --fg: #F5F5F4;
    --muted: #A3A3A3;
    --accent: #F59E0B;
    --accent-bg: #2A1B05;
    --border: #2A2A2A;
    --card: #141414;
  }
}
* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI",
    Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}
.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 20px 64px 20px;
}
header.site {
  border-bottom: 1px solid var(--border);
  padding-bottom: 18px;
  margin-bottom: 28px;
}
header.site h1 {
  margin: 0 0 6px 0;
  font-size: 28px;
  letter-spacing: -0.5px;
}
header.site .tag {
  color: var(--muted);
  font-size: 14px;
  margin: 0;
}
main h2 {
  font-size: 20px;
  margin: 28px 0 8px 0;
}
main h3 {
  font-size: 16px;
  margin: 18px 0 6px 0;
}
main p, main li { font-size: 15px; }
ul { padding-left: 22px; }
li { margin: 4px 0; }
a { color: var(--accent); text-decoration: underline; }
a:hover { opacity: 0.85; }
.note {
  background: var(--accent-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  margin: 16px 0;
  font-size: 14px;
}
nav.pages {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 8px 0 24px 0;
}
nav.pages a {
  display: inline-block;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  text-decoration: none;
  font-size: 14px;
  background: var(--card);
}
nav.pages a.active { background: var(--accent-bg); }
nav.lang {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 28px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
nav.lang a {
  font-size: 13px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  text-decoration: none;
  color: var(--muted);
}
nav.lang a.active {
  color: var(--fg);
  border-color: var(--fg);
}
footer.site {
  margin-top: 40px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--muted);
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 20px;
  margin: 12px 0;
}
.lang-picker {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
  margin: 24px 0;
}
.lang-picker a {
  text-decoration: none;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 18px;
  color: var(--fg);
  display: block;
}
.lang-picker a strong { display: block; font-size: 16px; margin-bottom: 4px; }
.lang-picker a span { font-size: 13px; color: var(--muted); }
@media (max-width: 480px) {
  header.site h1 { font-size: 24px; }
  .container { padding: 24px 16px 48px 16px; }
}