body {
    background: lightgrey;
    height: 100vh;
}

.modal-backdrop.fade.show {
    background: rgba(0, 0, 0, 0.31);
    border-radius: 16px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}