:root {
  color-scheme: light dark;
  --bg: #f7f7f8;
  --fg: #0d0d0d;
  --muted: #6e6e80;
  --card: #ffffff;
  --border: #e5e5e7;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #212121;
    --fg: #ececec;
    --muted: #9b9b9b;
    --card: #2f2f2f;
    --border: #444;
  }
}
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.55;
}
main {
  max-width: 40rem;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}
h1 { font-size: 1.75rem; margin: 0 0 0.35rem; text-align: center; }
h1.hero { font-size: 2rem; }
h2 { font-size: 1.1rem; margin: 2rem 0 0.6rem; }
.meta { color: var(--muted); font-size: 0.9rem; margin-bottom: 1rem; text-align: center; }
.meta.large { font-size: 1rem; margin-bottom: 1.5rem; }
.nav, .lang-switch {
  text-align: center;
  margin-bottom: 1.25rem;
  font-size: 0.9rem;
  color: var(--muted);
}
.nav a, .lang-switch a { margin: 0 0.4rem; color: inherit; }
.lang-switch a[aria-current="true"] {
  color: var(--fg);
  font-weight: 600;
  text-decoration: none;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.25rem 1.35rem;
}
ul { padding-left: 1.2rem; }
li { margin: 0.35rem 0; }
a { color: inherit; }
[data-lang-panel][hidden] { display: none !important; }