body {
  font-family: system-ui, sans-serif;
  margin: 0;
  padding: 2rem 1rem;
  color: #1f2328;
  background: #ffffff;
}

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

@media (prefers-color-scheme: dark) {
  body {
    color: #e6edf3;
    background: #0d1117;
  }
}