:root {
  color-scheme: light;
  --text: #173e3b;
  --muted: #5b6d6b;
  --line: #d7e3e0;
  --bg: #f7faf9;
}

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

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

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 16px;
  margin-bottom: 24px;
  font-size: 14px;
}

nav a {
  color: var(--text);
  text-decoration: none;
}

nav a[aria-current="page"] {
  font-weight: 700;
}

h1,
h2 {
  font-weight: 700;
}

h1 {
  font-size: 28px;
  margin-bottom: 8px;
}

h2 {
  font-size: 18px;
  margin-top: 28px;
}

p,
li {
  color: var(--muted);
}

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

section {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 24px;
  margin-top: 20px;
}

.meta {
  color: var(--muted);
  font-size: 14px;
}