.phronosoft-checkout-button {
    background-color: #010707 !important;
    color: #fff !important;
    padding: 14px 28px;
    font-size: 16px;
    border-radius: 5px;
    font-weight: 600;
    transition: background 0.3s;
    text-transform: uppercase;
}

.phronosoft-checkout-button:hover {
    background-color: #3b4852;
}

.wc-block-cart__submit-container.phronosoft-checkout-button a,
.phronosoft-checkout-button a,
.phronosoft-checkout-button {
    color: #fff !important;
}