:root {
  color-scheme: light dark;
  font-family: system-ui, sans-serif;
  line-height: 1.5;
}
body {
  margin: 0;
  padding: 24px;
}
main {
  max-width: 40rem;
  margin: 0 auto;
}
h1, h2 {
  line-height: 1.2;
}
p, li {
  color: CanvasText;
}
.muted {
  opacity: 0.75;
}
nav {
  margin-bottom: 24px;
}