.popup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: white;
    padding: 20px;
    border: 2px solid #ccc;
    z-index: 1000;
}

.popup-content {
    text-align: center;
}

.popup .popup-content p {
    color: #000;
}

.popup button {
    margin-top: 20px;
    padding: 10px 20px;
}

#loading_screen {
    z-index: 99996;
    position: fixed;
    margin: 0;
    top: 50%;
    left: 50%;
    margin-right: -50%;
    transform: translate(-50%, -50%);
}

#loading_screen_overlay {
    z-index: 99995;
    width: 100%;
    height: 100%;
    opacity: 0.6;
    background-color: white;
    position: fixed;
    top: 0;
}