@media (max-width: 768px) {
    .fullscreen-dialog {
        width: 100vw !important;
        height: 100vh !important;
        margin: 0 !important;
        border-radius: 0 !important;
    }

        .fullscreen-dialog .mud-dialog {
            height: 100% !important;
            display: flex;
            flex-direction: column;
        }

        .fullscreen-dialog .mud-dialog-content {
            flex: 1;
            overflow-y: auto;
            padding: 1rem;
        }

        .fullscreen-dialog .mud-dialog-actions {
            padding: 1rem;
            border-top: 1px solid #ccc;
            background-color: #fff;
        }
}