#instagramPopup {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9999;
    justify-content: center;
    align-items: center;
}

#instagramPopup .popup-content {
    background: white;
    border-radius: 8px;
    position: relative;
    max-width: 500px;
    width: 100%;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.3);
}

.btn-register-modal {
    padding: 10px 20px;
    border: black solid 1px;
}