:root {
  color-scheme: light;
  --text: #1c1917;
  --muted: #57534e;
  --line: #e7e5e4;
  --bg: #fafaf9;
  --card: #ffffff;
  --accent: #166534;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 18px;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

main {
  max-width: 42rem;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
  background: var(--card);
  min-height: 100vh;
}

header {
  border-bottom: 1px solid var(--line);
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
}

p.brand,
.updated,
nav {
  font-family: system-ui, sans-serif;
  font-size: 14px;
}

p.brand {
  margin: 0 0 0.5rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
}

h1 {
  margin: 0;
  font-size: 44px;
  line-height: 1.15;
}

h2 {
  margin: 2rem 0 0.6rem;
  font-size: 28px;
  line-height: 1.25;
}

p,
li {
  font-family: system-ui, sans-serif;
  font-size: 18px;
}

.updated {
  color: var(--muted);
}

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

nav {
  margin-top: 2.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

nav a {
  margin-right: 1rem;
}

ol li,
ul li {
  margin: 0.45rem 0;
}