:root {
  color-scheme: light dark;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

body {
  margin: 0;
  background: Canvas;
  color: CanvasText;
}

main {
  max-width: 640px;
  margin: 0 auto;
  padding: 64px 16px;
}

h1 {
  margin: 0 0 8px;
  font-size: 2rem;
}