/* Overlay styles */
        .SEPOPUPoverlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.5);
            display: none;
            align-items: center;
            justify-content: center;
        }
        
        /* Pop-up box styles */
        .SEPOPUPpopup {
            background-color: #fff;
            padding: 20px;
            max-width: 700px;
            text-align: center;
            border-radius: 5px;
        }
        
        /* Close button styles */
        .SEPOPUPclose {
            position: absolute;
            top: 10px;
            right: 10px;
            cursor: pointer;
        }