.qvs-hover-trigger {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 5;
    cursor: pointer;
}
.qvs-popup-overlay {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.6);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}
.qvs-popup-box {
    background: #fff;
    padding: 20px;
    width: 400px;
    max-width: 90%;
    border-radius: 10px;
    position: relative;
}
.qvs-popup-header {
    margin-bottom: 15px;
    font-size: 18px;
}
.qvs-close-popup {
    position: absolute;
    top: 10px; right: 10px;
    cursor: pointer;
    font-size: 18px;
}