:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --fg: #1c1c1e;
  --muted: #6b6b70;
  --accent: #d7361f;
  --border: #e3e3e6;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c1c1e;
    --fg: #f2f2f7;
    --muted: #9b9ba0;
    --accent: #ff6a52;
    --border: #38383c;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  line-height: 1.7;
  -webkit-text-size-adjust: 100%;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}

h1 {
  font-size: 1.6rem;
  margin: 0 0 4px;
}

h2 {
  font-size: 1.15rem;
  margin: 32px 0 8px;
  padding-top: 8px;
  border-top: 1px solid var(--border);
}

.updated {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0 0 8px;
}

.lang-switch {
  margin: 0 0 24px;
  font-size: 0.9rem;
}

a {
  color: var(--accent);
}

ul {
  padding-left: 1.25rem;
}

li {
  margin: 4px 0;
}

footer {
  margin-top: 48px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
}