.message-popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
}
.message-popup-content {
    background-color: #fff;
    padding: 20px;
    border-radius: 10px;
    max-width: 400px;
    width: 90%;
    text-align: center;
}
.message-popup-content h3 {
    margin: 0 0 10px;
    font-size: 18px;
}
.message-popup-content p {
    margin: 0 0 15px;
    font-size: 14px;
}
.message-popup-content button {
    background-color: #007bff;
    color: #fff;
    border: none;
    padding: 8px 16px;
    border-radius: 5px;
    cursor: pointer;
}