.game-area {
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

#targetCanvas {
  max-width: 100%;
  width: 100%;
  height: auto;
  background: linear-gradient(#e9f7ff, #ffffff);
  border-radius: 6px;
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.08);
}