body {
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background-color: #f0f0f0;
  font-family: Arial, sans-serif;
}

.container {
  position: relative;
  cursor: pointer;
  user-select: none;
}

.base-image {
  display: block;
  max-width: 90vw;
  max-height: 90vh;
  width: auto;
  height: auto;
}

.arm {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.arm.active {
  opacity: 1;
}

.left-arm {
  top: 0;
  left: 0;
  transform-origin: 70% 30%;
}

.right-arm {
  top: 0;
  left: 0;
  transform-origin: 30% 30%;
}

@keyframes rotateLeftArm {
  0% {
    transform: rotate(45deg) rotate(10deg);
  }
  50% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(45deg) rotate(10deg);
  }
}

@keyframes rotateRightArm {
  0% {
    transform: rotate(0deg);
  }
  50% {
    transform: rotate(-45deg) rotate(-10deg);
  }
  100% {
    transform: rotate(0deg);
  }
}

.left-arm.animating {
  animation: rotateLeftArm 0.6s ease-in-out infinite;
}

.right-arm.animating {
  animation: rotateRightArm 0.6s ease-in-out infinite;
}

.instruction {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background-color: rgba(0, 0, 0, 0.7);
  color: white;
  padding: 10px 20px;
  border-radius: 5px;
  font-size: 14px;
  opacity: 1;
  transition: opacity 0.3s ease;
}

.instruction.hidden {
  opacity: 0;
}