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

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #0a0a1e;
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
}

canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

#bg-canvas {
  z-index: 0;
}

#drop-canvas {
  z-index: 1;
  pointer-events: auto;
}

#hint {
  position: fixed;
  bottom: 12%;
  left: 0;
  right: 0;
  text-align: center;
  z-index: 10;
  font-family: -apple-system, 'Helvetica Neue', Arial, sans-serif;
  font-size: 14px;
  color: rgba(255, 220, 160, 0.5);
  letter-spacing: 0.6px;
  transition: opacity 1.5s ease-in-out;
  pointer-events: none;
}

#hint.hidden {
  opacity: 0;
}