:root {
  --bg: #f9fafb;
  --fg: #171717;
  --muted: #6b7280;
  --border: #e5e7eb;
  --link: #2563eb;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #171717;
    --fg: #f9fafb;
    --muted: #a1a1aa;
    --border: #2e2e2e;
    --link: #60a5fa;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 2.5rem 1.25rem 4rem;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
}

main {
  max-width: 680px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.5rem;
}

.logo svg {
  flex-shrink: 0;
}

.logo span {
  font-weight: 600;
  font-size: 1.15rem;
}

nav.langs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.8rem;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

nav.langs a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
}

nav.langs a[aria-current="true"] {
  color: var(--fg);
  font-weight: 600;
}

nav.langs a:hover {
  color: var(--link);
}

h1 {
  font-size: 1.5rem;
  margin: 0 0 0.25rem;
}

h2 {
  font-size: 1.2rem;
  margin: 2.5rem 0 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

h2:first-of-type {
  border-top: none;
  padding-top: 0;
}

h3 {
  font-size: 1rem;
  margin: 1.5rem 0 0.4rem;
}

p {
  margin: 0.4rem 0 1rem;
}

.field {
  margin: 0 0 1rem;
}

.field strong {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  font-weight: 600;
  margin-bottom: 0.15rem;
}

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

footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
}