.simple-popup-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 9999;
}

.simple-popup-overlay.active {
    display: block;
}

.simple-popup-content {
   background: #fff;
    max-width: 1200px;
    margin: auto;
    position: relative;
    border-radius: 10px;
    padding: 50px;
    max-height: 90vh;
    overflow-y: auto; /* enables vertical scroll */
    box-shadow: 0 0 20px rgba(0,0,0,0.3);
}

.simple-popup-close {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 24px;
    cursor: pointer;
    color: #333;
}