.popup-content{display:none;position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);z-index:9999;background:white;padding:30px;border-radius:10px;box-shadow:0 0 30px rgba(0,0,0,0.3)}.popup-overlay{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.5);z-index:9998}