#install-popup{display:none;position:fixed;top:10%;left:50%;transform:translateX(-50%);background-color:rgba(0,0,0,.8);color:orange;padding:20px 40px;border:3px solid #FF6F00;border-radius:10px;box-shadow:0 4px 10px rgba(0,0,0,.2);z-index:9999;font-size:18px;width:90%;max-width:500px;text-align:center}#install-btn,#cancel-btn{background-color:#FF6F00;color:#fff;padding:10px 20px;border-radius:5px;border:none;cursor:pointer;font-size:16px;margin-top:10px}#cancel-btn{background-color:#ccc}