:root {
  color-scheme: light dark;
  font: 1rem/1.65 system-ui, sans-serif;
}

main {
  max-inline-size: 42rem;
  margin: 3rem auto;
  padding-inline: 1.25rem;
}

h1, h2 {
  line-height: 1.25;
}

h2 {
  margin-block-start: 2rem;
}