*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
  background: #0a0c14;
  display: flex;
  align-items: center;
  justify-content: center;
  touch-action: manipulation;
  overflow: hidden;
  user-select: none;
  -webkit-user-select: none;
}

#gameCanvas {
  display: block;
  image-rendering: pixelated;
  cursor: pointer;
  /* Prevent long-press context menu on mobile */
  -webkit-touch-callout: none;
}