.image-container {
  position: relative;
  overflow: hidden;
}

.overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0);
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.image-container:hover .overlay {
  opacity: 1;
  background-color: rgba(0, 0, 0, 0.4);
}

.overlay a {
  color: white;
  text-decoration: none;
  font-size: 1.2em;
}