* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  background: #000;
  color: #8a8aa8;
  font-family: "Press Start 2P", ui-monospace, Menlo, monospace;
}

main {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 12px;
}

canvas {
  width: min(100%, calc((100vh - 70px) * 16 / 9));
  aspect-ratio: 16 / 9;
  image-rendering: crisp-edges;
  image-rendering: pixelated;
  background: #000;
  border: 4px solid #1b1b2f;
  outline: none;
}

.hint {
  margin: 0;
  font-size: 10px;
  line-height: 1.6;
  text-align: center;
}