* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
}

body {
  display: grid;
  place-items: center;
  min-width: 320px;
  background: #101419;
  color: #f4f7fb;
  font-family: Arial, Helvetica, sans-serif;
}

.game-shell {
  width: min(100vw, 1280px);
  aspect-ratio: 16 / 9;
  display: grid;
  place-items: center;
  background: #080b0f;
}

#gameCanvas {
  width: 100%;
  height: 100%;
  display: block;
  background: #121821;
  image-rendering: pixelated;
}