:root {
  color-scheme: light;
  --text: #1f2a44;
  --muted: #5b6478;
  --accent: #208aef;
  --soft: #fff8ec;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: #fffdf8;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 24px 20px 64px;
}

h1 {
  font-size: 1.9rem;
  line-height: 1.25;
  margin: 0.4em 0;
}

h2 {
  font-size: 1.2rem;
  margin-top: 1.8em;
}

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

.nav,
.meta {
  color: var(--muted);
  font-size: 0.95rem;
}

.summary {
  background: var(--soft);
  border-radius: 16px;
  padding: 4px 20px 8px;
}

code {
  font-size: 0.9em;
}