.t-store__prod-popup__btn_disabled,
.t-store__prod-popup__btn_disabled td.js-store-prod-popup-buy-btn-txt{
    font-size: 0px !important;
    color: #000000 !important;
}

.t-store__prod-popup__btn_disabled:before,
.t-store__prod-popup__btn_disabled td.js-store-prod-popup-buy-btn-txt:before{
    content: "Под заказ";
    font-size: 14px;
    color: #FFFFFF;
}