[data-wm-plugin="website-showcase"] {
  /* Popup background */
  --popup-bg: #ffffff;
  --popup-header-bg: #f5f5f5;
  --popup-header-height: 50px;
  
  /* Backdrop */
  --popup-backdrop-bg: rgba(0, 0, 0, 0.8);
  
  /* Shadow */
  --popup-shadow: 0 25px 80px rgba(0, 0, 0, 0.4);
  
  /* Close button */
  --popup-close-color: #333333;
  --popup-close-hover-color: #000000;
  
  /* Animation speed */
  --popup-animation-duration: 0.3s;
}