:root {
  color-scheme: light dark;
  font-family: system-ui, sans-serif;
}
body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
}
main {
  width: min(90%, 720px);
}
h1 {
  font-size: 2.4rem;
  margin-bottom: .5rem;
}
p {
  line-height: 1.6;
}
nav {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}
a {
  color: inherit;
}