:root {
  color-scheme: light dark;
  font-family: system-ui, sans-serif;
  line-height: 1.5;
}

body {
  margin: 0;
  padding: 1rem;
}

main {
  max-width: 40rem;
  margin: 0 auto;
}

button {
  font: inherit;
  padding: 0.6rem 1rem;
}