:root {
    --primary: #003152;
    --white: #ffffff;
    --black: #000000;
}

.testimonial_title h2 {
    font-size: 46px;
    color: var(--white);
}

#testimonials .row .column .card {
    margin: 10px;
    border: 1px solid var(--primary);
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
}

.card{
    height: 100% !important;
}

#testimonials{
    margin-bottom: 50px;
}

.testimonial {
    background-color: var(--primary);
    padding: 60px 0;
}

.column {
    padding: 10px 0;
}

.companies img {
    margin: 40px 0 0 0;
}

.underline_center::before {
    position: absolute;
    content: "";
    width: 118px;
    height: 5px;
    background-color: var(--primary);
    bottom: -15px;
    left: 36%;
}

.companies {
    padding: 60px 0;
}

.card-body p{
    font-size: 15px;
}

/* ------------------------------------- responsiveness -------------------------------------------------- */

@media (min-width: 992px) and (max-width: 1200px) {
    .card {
        margin: 0;
    }

    .card-body p{
        font-size: 14px;
    }

    #testimonials .row .column .card{
        margin: 0px;
    }
}

@media (min-width: 768px) and (max-width: 992px) {
    .card {
        margin: 0;
    }

    .column {
        padding: 10px 5px;
    }

    #testimonials .row .column .card{
        margin: 0px;
    }
}

@media (min-width: 576px) and (max-width: 768px) {
    .card {
        margin: 0;
    }

    .column {
        padding: 10px 5px;
    }

    .testimonial_title h2 {
        font-size: 30px;
        margin-bottom: 20px;
    }

    #testimonials .row .column .card{
        margin: 0px;
    }
}

@media (min-width: 400px) and (max-width: 576px) {
    .card {
        margin: 0;
    }

    .column {
        padding: 10px 5px;
    }

    .testimonial_title h2 {
        font-size: 25px;
        margin-bottom: 20px;
        text-align: center;
    }

    .testimonial {
        padding: 30px 0;
    }
}

@media (min-width: 300px) and (max-width: 400px) {
    .card {
        margin: 0;
    }

    .column {
        padding: 10px 5px;
    }

    .testimonial_title h2 {
        font-size: 25px;
        margin-bottom: 20px;
        text-align: center;
    }

    .testimonial {
        padding: 30px 0;
    }
}