#popup-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

#popup-content {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.2);
    text-align: center;
    max-width: 400px;
    width: 90%;
    animation: slideDown 0.5s ease-in-out;
}

@keyframes slideDown {
    from { transform: translateY(-50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

#close-popup {
    background: red;
    color: white;
    border: none;
    padding: 10px 20px;
    margin-top: 20px;
    cursor: pointer;
    border-radius: 5px;
    font-size: 16px;
}

#close-popup:hover {
    background: darkred;
}