html, body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #f5efe2;
  font-family: Arial, Helvetica, sans-serif;
}

#app {
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

canvas {
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  box-shadow: 0 12px 36px rgba(0,0,0,0.18);
  background: #f5efe2;
}