.quote-success {
    text-align: center;
    padding: 30px;
}

.quote-success p {
    text-align: center;
}

.quote-success h3 {
    color: #009688;
}

.wpcf7-form.loading {
    opacity: 0.5;
    pointer-events: none;
    position: relative;
}

.wpcf7-form.loading::after {
    content: "Đang gửi...";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #000;
    color: #fff;
    padding: 8px 12px;
}