.mbs-wcsp-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    z-index: 999998;
}

.mbs-wcsp-popup {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    background: #fff;
    padding: 20px;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.mbs-close {
    position: absolute;
    top: 8px;
    right: 12px;
    cursor: pointer;
    font-size: 20px;
}