@media screen and (max-width: 1400px) {
    .first-block .title h1 {
        max-width: 100%;

        font-size: 68px;
        line-height: 120%;
    }

    .news-slider .news-item p {
        font-size: 18px;
        line-height: 130%;
    }

    .about-text .title {
        font-size: 42px;
        line-height: 120%;
    }

    .index-about {
        -webkit-background-size: 60%;
        background-size: 60%;
    }

    .index-about .text .title, .index-services .title, .index-contacts .title {
        font-size: 48px;
        line-height: 120%;
    }

    .contacts-row {
        margin-top: 50px;
    }
}

@media screen and (max-width: 1200px) {
    .index-map .map-img {
        max-width: 100%;
    }

    .index-about .text .title, .index-services .title, .index-contacts .title {
        font-size: 42px;
    }

    .services-item {
        max-width: 100%;
    }

    .big-slider .swiper {
        height: 460px;
    }

    .contacts-row {
        flex-wrap: wrap;
    }

    .contacts-row .item {
        width: calc(50% - 17px);
    }

    .index-map-link {
        background-position: bottom right;
    }

    .white-container h1 {
        font-size: 42px;
        line-height: 120%;
        margin-bottom: 30px;
    }

    .text-block p {
        font-size: 18px;
        line-height: 130%;
    }

    .text-block h2, .form .title, .offer .title, .vacancy-list-container .title {
        font-size: 38px;
        line-height: 120%;
    }

    .text-block ul, .text-block ol, .vacancy-item-content .content ul {
        font-size: 18px;
        line-height: 130%;
    }

    .quote-block__text p {
        font-size: 26px;
        line-height: 130%;
    }

    .project-item .content p {
        font-size: 16px;
        line-height: 120%;
    }

    .offer-row .item .content {
        margin-top: 12px;
    }

    .offer-row .item .content p {
        font-size: 18px;
        line-height: 120%;
    }

    .offer-row .item .content span {
        font-size: 16px;
        line-height: 120%;
        margin-top: 10px;
    }

    .vacancy-list .item {
        align-items: flex-start;
        gap: 15px 20px;
    }

    .vacancy-list-container .title {
        margin-bottom: 20px;
    }

    .vacancy-list .item .name p {
        font-size: 20px;
        line-height: 120%;
    }

    .equipment-row .item {
        width: calc(100% / 4 - 23px);
    }

}

@media screen and (max-width: 1024px) {
    .category-row .item, .step-block .item p {
        font-size: 16px;
        line-height: 120%;
    }
}

@media screen and (max-width: 992px) {

    .fixed-nav-container {
        bottom: unset;
        top: 15px;
        padding: 0 15px;
    }

    .fixed-nav {
        justify-content: space-between;
        gap: 20px;
        width: 100%;
    }

    .first-block .big-logo {
        display: none;
    }

    .first-block .title {
        order: 2;
    }

    .first-block .title h1 {
        font-size: 60px;
    }

    .first-block .news {
        order: 3;
    }

    .numbers-row .item p {
        font-size: 96px;
        line-height: 120%;
    }

    .numbers-row .item span {
        font-size: 18px;
        line-height: 130%;
    }

    .index-map .title {
        font-size: 36px;
        line-height: 120%;

        top: 20px;
    }

    .index-map .map-img {
        max-width: 90%;
    }

    .index-about {
        -webkit-background-size: 50%;
        background-size: 50%;
        background-position: bottom left;
    }

    .index-about .text {
        max-width: 100%;
    }

    .index-about .flight-block {
        margin-top: 30px;
        background-color: #fff;
    }

    .about-text .title {
        font-size: 36px;
    }

    .index-about .text .title, .index-services .title, .index-contacts .title {
        font-size: 36px;
    }

    .services-item .item__title {
        font-size: 20px;
        line-height: 130%;
    }

    .services-item .item__img {
        margin-bottom: 15px;
    }

    .big-slider .swiper {
        height: 380px;
    }

    .index-map-link {
        background-position: center;
    }

    footer {
        padding-bottom: 40px;
    }

    .footer-row {
        flex-wrap: wrap;
    }

    .link-block {
        gap: 15px;
    }

    .text-block h2, .form .title, .offer .title, .vacancy-list-container .title {
        font-size: 32px;
    }

    .blue-items-bg-block .item {
        font-size: 16px;
        line-height: 120%;
    }

    .quote-block {
        margin: 80px auto;
    }

    .white-container .logo-grid .logo-container .item {
        max-width: calc(100% / 3 - 7px);
    }

    input, select, textarea {
        font-size: 16px;
        padding: 15px 18px;
    }

    .form-container {
        margin-top: 30px;
    }

    .white-container h1 {
        font-size: 38px;
    }

    header:not(.first-block) .header-small-logo {
        display: none;
    }

    header:not(.first-block) + main {
        margin-top: 130px;
    }

    .white-container {
        padding: 30px 40px;
    }

    .team-tabs {
        margin-top: 30px;
    }

    .tabs-controls {
        margin-bottom: 25px;
    }

    .project-item {
        width: calc(100% / 2 - 15px);
    }

    .project-page h1 {
        font-size: 28px;
    }

    .project-page .status .tag, .status .place, .status .date {
        font-size: 16px;
        line-height: 120%;
    }

    .project-page .details {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
        width: 100%;
    }

    .medium-slider-container {
        margin: 50px 0;
    }

    .medium-slider .slider-button-next {
        right: -34px;
    }

    .medium-slider .slider-button-prev {
        left: -34px;
    }

    .medium-slider-container .title {
        font-size: 32px;
        line-height: 120%;
    }

    .offer-row {
        flex-wrap: wrap;
    }

    .offer-row .item:first-child, .offer-row .item {
        width: calc(50% - 15px);
    }

    .offer-row .item .img {
        height: 180px;
    }

    .vacancy-list .item {
        flex-wrap: wrap;
    }

    .vacancy-list .item .name {
        width: 100%;
    }

    .vacancy-list .item .item-col {
        width: calc(100% / 3 - 14px);
    }

    .equipment-row .item {
        width: calc(100% / 3 - 20px);
    }

    .img-block {
        padding: 30px;
    }

    .img-block .title {
        font-size: 32px;
        line-height: 120%;
    }

    .img-block .content {
        font-size: 16px;
        line-height: 130%;
    }

    .team-tabs .team-item {
        width: calc(100% / 3 - 20px);
    }

    .team-tabs .team-item__content p {
        font-size: 20px;
        line-height: 120%;
    }

    .team-tabs .team-item__content .text p {
        margin-top: 5px;
    }

    .vacancy-block .title {
        font-size: 28px;
        line-height: 120%;
    }

    .vacancy-block .text {
        max-width: 100%;
    }

}

@media screen and (max-width: 880px) {
    .fixed-nav {
        padding: 15px;
    }

    .fixed-nav ul {
        gap: 18px;
    }

    .fixed-nav ul a {
        font-size: 14px;
        line-height: 120%;
    }

    .fixed-nav nav + .button {
        padding: 10px 15px;
        font-size: 14px;
    }
}

@media screen and (max-width: 768px) {

    .fixed-nav-container {
        padding: 0;
    }

    .fixed-nav nav + .button {
        display: none;
    }

    .fixed-nav {
        padding: 20px;
    }

    .fixed-nav nav {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        background: #fff;
        z-index: 33;
        width: auto;
        min-width: 45vw;
        padding: 90px 60px 60px;

        transform: translateX(1000px);
        transition: .3s ease-out;
    }

    .fixed-nav nav ul {
        flex-direction: column;
        align-items: flex-end;
        padding: 60px 0;
    }

    body.mask {
        overflow: hidden;
    }
    body.mask .fixed-nav:before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 32;

        display: block;
        background-color: rgba(255, 255, 255, 0.4);
    }

    body.mask .fixed-nav nav {
        transform: translateX(0);
        transition: .3s ease-out;
    }

    /* burger */
    .burger{
        width: 35px;
        height: 30px;
        margin: 0;
        position: relative;
        z-index: 34;
        cursor: pointer;
        display: inline-block;
    }
    .burger span{
        background-color:#0B4476;
        position: absolute;
        border-radius: 2px;
        transition: .3s cubic-bezier(.8, .5, .2, 1.4);
        width:100%;
        height: 4px;
        transition-duration: 500ms
    }
    .burger span:nth-child(1){
        top:0px;
        left: 0px;
    }
    .burger span:nth-child(2){
        top:13px;
        left: 0px;
        opacity:1;
    }
    .burger span:nth-child(3){
        bottom:0px;
        left: 0px;
    }
    .burger:not(.open):hover span:nth-child(1){
        transform: rotate(-3deg) scaleY(1.1);
    }
    .burger:not(.open):hover span:nth-child(2){
        transform: rotate(3deg) scaleY(1.1);
    }
    .burger:not(.open):hover span:nth-child(3){
        transform: rotate(-4deg) scaleY(1.1);
    }
    .burger.open span:nth-child(1){
        transform: rotate(45deg);
        top: 13px;
    }
    .burger.open span:nth-child(2){
        opacity:0;
    }
    .burger.open span:nth-child(3){
        transform: rotate(-45deg);
        top: 13px;
    }
    /* end burger */

    .fixed-nav ul a {
        font-size: 16px;
    }

    .first-block .title h1 {
        font-size: 46px;
    }

    .news-slider {
        padding: 0 50px;
    }

    .slider-button-prev {
        left: 10px;
    }

    .slider-button-next {
        right: 10px;
    }

    .about-text .title {
        font-size: 28px;
    }

    .numbers-row .item p {
        font-size: 74px;
    }

    .numbers-row .item span {
        font-size: 16px;
    }

    .index-map {
        display: none;
    }

    .about-text {
        padding: 70px 0;
    }

    .mobile-projects {
        display: block;
        text-align: center;
        padding: 20px 0;
    }

    .mobile-projects img {
        margin-bottom: 20px;
    }

    .mobile-projects p {
        font-size: 28px;
        line-height: 120%;
        font-weight: 700;
        text-align: center;
        color: #05131F;
        margin: 0;
    }

    .mobile-projects .button {
        margin-top: 30px;
    }

    .tabs-controls {
        justify-content: space-between;
    }

    .tabs-controls .button {
        padding: 8px 12px;
        font-size: 16px;
        line-height: 120%;
    }

    .services-item {
        padding: 20px;
    }

    .services-item .item__img {
        width: 40px;
        height: 40px;
    }

    .services-item .item__img img {
        max-width: 20px;
    }

    .services-item .item__content {
        margin-top: 5px;
    }

    .logo-grid .logo-container .item {
        max-width: calc(100% / 2 - 8px);
    }

    .big-slider .swiper {
        height: 300px;
    }

    .big-slider .swiper-slide p {
        font-size: 17px;
        line-height: 120%;
    }

    .white-container .logo-grid .logo-container .item {
        max-width: calc(100% / 2 - 5px);
    }

    .white-container h1 {
        font-size: 32px;
        margin-bottom: 20px;
    }

    .text-block h2, .form .title, .logo-grid .title, .offer .title, .vacancy-list-container .title {
        font-size: 28px;
        line-height: 120%;
    }

    .form .subtitle {
        font-size: 16px;
        line-height: 130%;
    }

    .quote-block__text p {
        font-size: 20px;
    }

    .form-button {
        flex-wrap: wrap;
        justify-content: flex-start;
        gap: 15px;
    }

    .project-item {
        width: 100%;
    }

    .medium-slider-container .title {
        font-size: 28px;
    }

    .offer-row .item:first-child, .offer-row .item {
        width: 100%;
    }

    .offer-row .item .content {
        margin-top: 15px;
    }

    .offer-row .item .content span {
        margin-top: 5px;
    }

    .vacancy-list .item .item-col {
        width: auto;
    }

    .page-img {
        margin: 35px 0;
    }

    .offer {
        margin: 60px 0;
    }

    textarea {
        min-height: 100px;
    }

    .file-input label {
        top: calc(50% - 19px);
        font-size: 16px;
        line-height: 120%;
        white-space: normal;
    }

    .vacancy-form .title {
        margin-bottom: 20px;
    }

    .breadcrumbs ul {
        line-height: 1;
    }

    .equipment-row .item {
        width: calc(100% / 2 - 15px);
    }

    .img-block .title {
        font-size: 28px;
    }

    .category-row .item {
        width: calc(100% / 2 - 5px);
    }

    .step-block {
        flex-wrap: wrap;
    }

    .step-block .item {
        width: calc(50% - 8px);
    }

    .big-slider + .category-row-container {
        margin-top: 30px;
    }

    .team-tabs .tabs-controls {
        flex-wrap: wrap;
    }

    .team-tabs .team-item {
        width: calc(100% / 2 - 15px);
    }

}

@media screen and (max-width: 576px) {
    .numbers-row .item p, .numbers-row .item span {
        text-align: center;
    }

    .numbers-row .item span {
        margin-top: 5px;
    }

    .index-about .text .title, .index-services .title, .index-contacts .title, .logo-grid .title {
        font-size: 30px;
        line-height: 120%;
    }

    .index-about .text .content {
        margin-top: 20px;
    }

    .index-about .text .content p {
        font-size: 18px;
        line-height: 130%;
    }

    .index-services .tabs {
        margin-top: 20px;
    }

    .tabs-controls {
        margin-bottom: 30px;
    }

    .white-container h1 {
        font-size: 26px;
    }

    .img-block {
        padding: 20px;
    }

    .equipment-row {
        gap: 30px 10px;
    }

}

@media screen and (max-width: 535px) {
    .tabs-controls {
        flex-wrap: wrap;
        justify-content: center;
    }

    .blue-items-bg-block .item {
        width: 100%;
    }
}

@media screen and (max-width: 480px) {
    .numbers-row {
        flex-wrap: wrap;
    }

    .index-about {
        background-image: none;
    }

    .index-about .flight-block {
        max-width: 100%;
        margin-left: 0;
    }

    .contacts-row {
        flex-direction: column;
    }

    .contacts-row .item {
        width: 100%;
    }

    .footer-row {
        flex-direction: column;
    }

    .footer-info .copyright {
        margin-bottom: 8px;
    }

    .white-container {
        padding: 24px 20px;
    }

    .form-container form .form-group {
        max-width: 100%;
    }

    .medium-slider-container {
        padding: 0 30px;
    }

    .vacancy-list {
        margin: 0;
    }

    .vacancy-list .item {
        padding: 15px;
    }

    .modal-title {
        font-size: 22px;
        line-height: 120%;
    }

    .vacancy-block .text p {
        font-size: 16px;
        line-height: 120%;
    }

}

@media screen and (max-width: 420px) {
    .first-block .title h1 {
        font-size: 38px;
    }

    .news-slider {
        padding: 0 30px;
    }

    .slider-button-prev {
        left: 0;
    }

    .slider-button-next {
        right: 0;
    }

    .index-big-slider {
        padding-bottom: 10px;
    }

    .contacts-row {
        margin-top: 30px;
    }

    .text-block h2 {
        margin-bottom: 20px;
    }

    textarea {
        min-height: 120px;
    }
}

@media screen and (max-width: 390px) {
    .news-slider .news-item p {
        font-size: 16px;
    }

    .numbers-row .item p {
        margin-bottom: 0;
    }

    .text-block p, .text-block ul, .text-block ol, .vacancy-item-content .content ul {
        font-size: 16px;
    }

    .text-block ul li:not(:last-child), .text-block ol li:not(:last-child) {
        margin-bottom: 8px;
    }

    .index-about .text .title, .index-services .title, .index-contacts .title, .logo-grid .title, .text-block h2, .form .title, .offer .title, .vacancy-list-container .title {
        font-size: 26px;
    }

    .form-button .button {
        width: 100%;
        padding: 16px 18px;
        text-align: center;
    }

    .about-competence {
        margin: 50px 0;
    }

    .medium-slider-container .title {
        font-size: 26px;
    }

    .vacancy-list .item .name span {
        margin-top: 5px;
    }

    .img-block .title {
        font-size: 26px;
    }

    .team-tabs .team-item {
        width: 100%;
    }

    .vacancy-list .empty .title {
        text-align: center;
    }
}

@media screen and (max-width: 380px) {
    .tabs-controls .button {
        padding: 6px 8px;
        font-size: 15px;
    }

    textarea {
        min-height: 140px;
    }

    .equipment-row .item {
        width: 100%;
    }

    .category-row .item, .step-block .item {
        width: 100%;
    }

    .modal-content {
        padding: 38px 26px 30px;
    }
}

@media screen and (max-width: 373px) {
    .file-input input {
        padding-top: 40px;
        padding-bottom: 40px;
    }

    .file-input label {
        top: calc(50% - 30px);
    }

    .img-block .title {
        font-size: 21px;
    }
}