#popup-overlay-veil {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);

    z-index: 99;
    display: none; /* Hidden by default */
}

.popup-window {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    padding: 20px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);

    z-index: 100;
    display: none;
}

.popup-btn {
    display: inline;
    padding: 5px;
    border-bottom: 3px;
}