.carousel-container {
  perspective: 1000px;
  position: relative;
  width: 400px;
  height: 300px;
  margin: auto;
  overflow: hidden;
}

.carousel {
  display: flex;
  transform-style: preserve-3d;
  animation: rotate 20s infinite linear;
  position: absolute;
  width: 100%;
  height: 100%;
  justify-content: center;
  align-items: center;
}

.carousel img {
  position: absolute;
  width: 250px;
  height: 200px;
  object-fit: cover;
  border-radius: 12px;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
  transform-origin: center;
}

.carousel img:nth-child(1) { transform: rotateY(0deg) translateZ(400px); }
.carousel img:nth-child(2) { transform: rotateY(90deg) translateZ(400px); }
.carousel img:nth-child(3) { transform: rotateY(180deg) translateZ(400px); }
.carousel img:nth-child(4) { transform: rotateY(270deg) translateZ(400px); }

@keyframes rotate {
  from { transform: rotateY(0deg); }
  to { transform: rotateY(360deg); }
}

button.prev, button.next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background-color: rgba(0,0,0,0.5);
  color: white;
  border: none;
  padding: 10px;
  cursor: pointer;
}

button.prev { left: 0; }
button.next { right: 0; }