#overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5); /* Semi-transparent black */
    z-index: 999; /* Ensure it's above other content */
    display: none;
}

.popup_box {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%); /* Center the popup */
    background-color: white;
    padding: 20px;
    border: 1px solid #ccc;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
    z-index: 1000; /* Ensure it's above the overlay */
    display: none;
}