:root {
  color-scheme: dark;
  font-family: Inter, system-ui, sans-serif;
  background: #050816;
  color: #e2e8f0;
}

* { box-sizing: border-box; }

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  display: grid;
  place-items: center;
}

main {
  width: min(94vw, 720px);
  padding: 24px;
  text-align: center;
}

p { color: #94a3b8; }

canvas {
  display: block;
  width: min(100%, 560px);
  aspect-ratio: 1;
  margin: 0 auto;
  touch-action: none;
}