.overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  z-index: 999;
  align-items: center;
  justify-content: center;
}

.overlay.active {
  display: flex;
}

.overlay img {
  height: 90%;
  max-width: 90%;
  border-radius: 12px;
  object-fit: contain;
}

.close-btn {
  position: absolute;
  top: 16px;
  right: 20px;
  color: white;
  font-size: 28px;
  cursor: pointer;
  line-height: 1;
}