.mpc-popup-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
}
.mpc-popup {
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    text-align: center;
    max-width: 300px;
}
.mpc-popup button {
    margin-top: 10px;
    background: #7fad39;
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
}