.upsell-overlay {
    /*display:none; */
    position:fixed;
    top:0; left:0;
    width:100%; height:100%;
    background:rgba(0,0,0,.6);
    z-index:9999;
    align-items:center;
    display: flex;
    justify-content:center;
}
.upsell-box {
    background:#393939;
    padding:30px;
    border-radius:12px;
    max-width:600px;
    text-align:center;
    position:relative;
}
.upsell-close {
    position:absolute;
    top:10px; right:10px;
    background: #f3d58f;
    border: 2px solid #393939;
    border-radius: 7px;
    cursor:pointer;
}
.upsell-products {
    display:flex;
    flex-wrap:wrap;
    gap:20px;
    justify-content:center;
}
.upsell-item {
    flex:1 1 150px;
    text-align:center;
}
.upsell-item img {
    max-width:100px;
    height:auto;
    margin:0 auto 10px;
}
.upsell-add {
    background:#0073aa;
    color:#fff;
    padding:8px 16px;
    border:none;
    border-radius:6px;
    cursor:pointer;
}
.upsell-add:hover {
    background:#005177;
}