.carousel-thumb {

  width: 80px;

  height: 60px;

  object-fit: cover;

  cursor: pointer;

  border: 2px solid transparent;

  transition: border-color 0.3s, box-shadow 0.3s;

}

.carousel-thumb.active {

  border-color: #007bff;

  box-shadow: 0 0 5px rgba(0, 123, 255, 0.6);

}