.isve_popup.popup-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 999;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.isve_popup .popup-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: #fff;
  padding: 10px;
  border-radius: 8px;
  width: 60%;
  max-width: 660px;
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
  transform: translate(-50%, -50%) scale(0.8);
  overflow-y: auto; /* Enable vertical scrollbar */
  max-height: 80vh; 
}

.isve_popup.popup-overlay.active {
  display: block;
  opacity: 1;
}

.isve_popup .popup-content.active {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.isve_popup .close {
  position: absolute;
  top: 10px;
  right: 10px;
  cursor: pointer;
}