:root {
  color-scheme: light dark;
}

body {
  font-family: system-ui, -apple-system, sans-serif;
  line-height: 1.5;
  max-width: 40rem;
  margin: 0 auto;
  padding: 2rem 1rem;
}

nav a {
  margin-right: 1rem;
}

h1, h2, h3 {
  line-height: 1.2;
}

ul {
  padding-left: 1.25rem;
}