.labsignal-game,
.labsignal-game * {
  box-sizing: border-box;
}

.labsignal-game {
  margin: 0;
  padding: 8px;
  background: #05000f;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 225px;
  font-family: monospace;
  overflow: hidden;
}

.labsignal-game canvas {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  image-rendering: pixelated;
}

.labsignal-game-hint {
  color: rgba(255,255,255,0.3);
  font-size: 10px;
  margin-top: 6px;
  letter-spacing: 0.1em;
}