#back-button-modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.4);
}

.modal-content {
    background-color: #fefefe;
    margin: 15% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
    max-width: 500px;
}

.modal-buttons {
    display: flex;
    justify-content: center;
    margin-top: 20px;
}

.modal-buttons button {
    margin: 0 10px;
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
    border: none;
    border-radius: 5px;
}

.modal-buttons button:hover {
    opacity: 0.8;
}

.modal-text {
    justify-content: center;
    display: grid;
}