html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: #101724;
}

canvas {
  display: block;
  width: 100vw;
  height: 100vh;
  touch-action: none;
}

.repair-hint {
  position: fixed;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  padding: 0.45rem 0.7rem;
  border: 1px solid rgba(239, 246, 255, 0.3);
  background: rgba(8, 13, 20, 0.72);
  color: rgba(239, 246, 255, 0.9);
  font: 12px/1.4 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0;
}