.popup {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
}
.popup-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    text-align: center;
    max-width: 80%;
}
.popup h2 {
    margin-top: 0;
}
#successPopup h2 {
    color: #4CAF50;
}
#failurePopup h2 {
    color: #f44336;
}
.popup p {
    margin-bottom: 0;
}