: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(90vw, 32rem);
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

button {
  padding: 0.65rem 1rem;
  font: inherit;
}