:root {
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Palatino, "Palatino Linotype", "Book Antiqua", Georgia, serif;
  line-height: 1.55;
}

a {
  color: inherit;
}

.wrap {
  max-width: 860px;
  margin: 0 auto;
  padding: 24px 16px;
}

header {
  border-bottom: 1px solid #ddd;
}

h1 {
  margin: 0;
  font-size: 2rem;
  letter-spacing: 0.2px;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  padding: 14px 0;
}

nav a {
  text-decoration: none;
}

nav a:hover {
  text-decoration: underline;
}

main {
  padding: 28px 0 40px;
}

.lede {
  max-width: 70ch;
  margin-top: 18px;
}

.muted {
  color: #444;
  font-size: 0.95rem;
}

.callout {
  padding: 12px 14px;
  border: 1px solid #ddd;
  background: #fafafa;
}

footer {
  border-top: 1px solid #ddd;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  padding: 18px 0;
}

.footer-grid h2 {
  font-size: 0.95rem;
  margin: 0 0 8px;
}

.footer-grid ul {
  margin: 0;
  padding-left: 18px;
}

@media (min-width: 720px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}