#upi-payment-modal{position:relative}
.upi-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5)}
.upi-popup{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:#fff;padding:30px;max-width:420px;width:90%;text-align:center;z-index:9999}
.upi-qr{max-width:250px}
.upi-apps a{display:inline-block;margin:5px;padding:10px;border:1px solid #ddd;text-decoration:none}