/* popup.css */
#popup-overlay {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.85);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

#popup-overlay.active {
    opacity: 1;
    visibility: visible;
}

#popup-container {
    background: #222;
    padding: 40px 20px;
    color: white;
    text-align: center;
    border-radius: 10px;
    max-width: 600px;
    width: 90%;
    position: relative;
}

#popup-close {
    position: absolute;
    top: 10px; right: 15px;
    font-size: 20px;
    cursor: pointer;
}

.button-link {
    display: inline-block;
    background: #fff;
    color: #000;
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 6px;
    font-weight: bold;
    margin-top: 10px;
}