@media screen and (max-width: 1500px) {
    .left-column {
        padding-left: 50px;
        padding-right: 50px;
        width: 46%;
    }
    .header-logo {
        margin-left: 25px;
    }
    .header-logo+.header-logo {
        margin-left: 15px;
    }
    .nav-primary {
        bottom: 0;
        padding: 50px 30px 15px 30px;
        top: 53px;
        width: 46%
    }
    .nav-main>li>.nav-main__submenu {
        left: 0;
        padding: 0;
        position: relative;
        width: auto;
    }
    .nav-main__dropdown.is-open {
        background: #5B739B;
        bottom: 0;
        left: 0;
        padding: 55px 30px 15px 30px;
        position: fixed;
        right: 0;
        top: 53px;
        width: 46%;
    }
    .nav-main__dropdown.is-open>.nav-main__expand {
        font-size: 0;
        left: 15px;
        position: fixed;
        top: 90px;
        z-index: 1;
    }
    .nav-main__dropdown.is-open>.nav-main__expand::before {
        background: url(../images/ico-arrow.svg) no-repeat center / contain;
        content: '';
        height: 20px;
        left: 15px;
        position: absolute;
        transform: rotate(180deg);
        width: 20px;
    }
    .nav-main__submenu-category .nav-main__expand {
        display: block;
        font-size: 21px;
    }
    .nav-main__submenu-category {
        display: block;
        min-height: 60px;
    }
    .nav-main__submenu-category>* {
        width: auto;
    }
    .nav-main__submenu-category.is-active {
        background: #5B739B;
        border: 0;
        bottom: 0;
        left: 0;
        max-height: 100%;
        padding: 50px 15px 15px 15px;
        position: fixed;
        top: 53px;
        width: 46%;
        z-index: 2;
    }
    .nav-main__submenu-category.is-active .nav-main__expand {
        font-size: 0;
        margin-bottom: 60px
    }
    .nav-main__submenu-category .nav-main__expand::after {
        background: url(../images/ico-arrow.svg) no-repeat center / contain;
        content: '';
        height: 16px;
        position: absolute;
        right: 0;
        width: 16px;
    }
    .nav-main__submenu-category.is-active .nav-main__expand::after {
        height: 20px;
        left: 0;
        margin-left: 30px;
        transform: rotate(180deg);
        width: 20px;
    }
    .nav-main__submenu-category-links.nav-main__submenu {
        display: none;
        font-size: 21px;
        font-weight: bold;
        left: 15px;
        line-height: 1.8;
    }
    .nav-main__submenu-category-links {
        position: relative;
        z-index: 10
    }
    .nav-main__submenu-category.is-active .nav-main__submenu-category-links {
        display: block;
    }
    .mobile-visible {
        display: block;
    }
    .nav-secondary__links li {
        opacity: 1;
    }
}

@media screen and (max-width: 1200px) {
    .left-column {
        padding-left: 30px;
        padding-right: 30px;
    }
    .header-logo {
        margin-left: 45px;
    }
    .left-column {
        font-size: 16px;
    }
    .right-column,
    .right-column2 {
        width: 220px;
    }
    .nav-main>li {
        font-size: 55px;
    }
}

@media screen and (max-width: 992px) {
    h1 {
        font-size: 45px;
    }
    .left-column {
        padding-left: 20px;
        padding-right: 20px;
    }
    .header-logo {
        margin-left: 55px;
    }
    h1.spacing-xl {
        margin-bottom: 30px;
    }
    .nav-tertiary>h4 {
        overflow: hidden;
        text-overflow: ellipsis;
        width: 36%;
    }
}

@media screen and (max-width: 767px) {
    html {
        overflow-x: hidden;
    }
    h1.spacing-xl {
        margin-bottom: 10px;
    }
    .page-container {
        display: block;
    }
    .page-header {
        align-items: center;
        background: #5B739B;
        height: 40px;
        left: 0;
        padding-right: 15px;
        position: fixed;
        right: 0;
        top: 0;
    }
    .header-logo {
        margin-left: 55px;
    }
    .page-heading {
        border-top: 1px solid #E2E2E2;
        margin-bottom: 30px;
        min-height: inherit;
        padding-top: 10px;
    }
    .nav-primary {
        bottom: 0;
        padding: 50px 15px 15px 15px;
        right: 0;
        top: 40px;
        width: auto;
    }
    .nav-main__dropdown.is-open {
        padding: 55px 15px 15px;
        top: 40px;
        width: auto;
    }
    .nav-main__submenu-category.is-active {
        right: 0;
        top: 40px;
        width: auto;
    }
    .nav-main__dropdown.is-open>.nav-main__expand,
    .nav-main__submenu-category-links.nav-main__submenu {
        left: 0;
    }
    .nav-main__submenu-category.is-active .nav-main__expand::after {
        margin-left: 15px;
    }
    .nav-secondary__links {
        font-size: 16px;
    }
    .nav-contacts__location {
        font-size: 14px;
    }
    .nav-contacts h3 {
        font-size: 16px;
    }
    .nav-contacts__list {
        font-size: 16px;
        margin-bottom: 25px;
    }
    .left-column {
        height: auto;
        padding-bottom: 30px;
        padding-top: 128px;
        position: relative;
        width: auto;
    }
    .left-column .page-footer {
        display: none;
    }
    .center-column {
        height: auto;
        padding: 15px;
        position: relative;
        width: auto;
    }
    .center-column2,
    .center-column3 {
        padding: 15px;
    }
    .right-column {
        padding: 15px;
        width: auto;
    }
    .right-column .page-footer {
        display: block;
    }
    .right-column2 {
        height: auto;
        padding: 15px;
        position: relative;
        width: auto;
    }
    .intro-text {
        font-size: 18px;
    }
    .btn-link-group {
        display: block;
        margin-bottom: 30px;
    }
    .page-footer {
        border-top: 1px solid #E2E2E2;
    }
    .hamburger {
        height: 40px;
        width: 40px;
    }
}

@media screen and (max-width: 360px) {
    .header-logo {
        width: 165px;
    }
    .header-logo+.header-logo {
        display: none;
    }
    .project-item__info {
        display: block;
    }
    .project-item__info>span {
        display: block;
        margin-bottom: 15px
    }
}