:root {
  color-scheme: light dark;
  --text: #33241A;
  --background: #FAF3E7;
  --border: #E7D9C4;
  --primary: #9A3412;
}
@media (prefers-color-scheme: dark) {
  :root {
    --text: #F0E6D8;
    --background: #1C140F;
    --border: #4A3626;
    --primary: #E0916B;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  padding: 2.5rem 1.5rem 4rem;
  background: var(--background);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
}
main {
  max-width: 640px;
  margin: 0 auto;
}
h1 {
  font-size: 1.6rem;
  margin-bottom: 0.25rem;
}
.subtitle {
  color: var(--primary);
  font-weight: 600;
  margin-top: 0;
  margin-bottom: 2rem;
}
nav {
  margin-bottom: 2.5rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
nav a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  border: 1px solid var(--border);
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
}
nav a:hover { text-decoration: underline; }
pre {
  white-space: pre-wrap;
  font-family: inherit;
  font-size: 1rem;
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
}
footer {
  margin-top: 3rem;
  font-size: 0.85rem;
  color: var(--primary);
  opacity: 0.8;
}