:root {
  color-scheme: light;
  --bg: #f8fafc;
  --text: #0f172a;
  --muted: #475569;
  --line: #e2e8f0;
  --link: #1d4ed8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 "Iowan Old Style", Palatino, "Palatino Linotype", "Songti SC", serif;
}

main {
  max-width: 38rem;
  margin: 0 auto;
  padding: 4.5rem 1.5rem 6rem;
}

.mark,
.mark a {
  letter-spacing: 0.08em;
  text-transform: lowercase;
  color: var(--muted);
  text-decoration: none;
}

h1 {
  font-weight: 500;
  font-size: 2rem;
  line-height: 1.25;
  margin: 0.5rem 0 1rem;
}

h2 {
  font-weight: 500;
  font-size: 1.15rem;
  margin: 2rem 0 0.4rem;
}

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

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

nav {
  display: flex;
  gap: 1.25rem;
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}

ul {
  padding-left: 1.2rem;
}