:root {
    --colour-blue-main: #253081;
    --colour-blue-light: #3E4DBE;
    --colour-grey: #1C303B;
    --colour-grey-light: #F2F2F2;
    --colour-orange: #FB4F14;
    --colour-bg: #FFF;
    --border-radius: 5px;
}

*,
*:before,
*:after {
    box-sizing: border-box;
}

::selection {
    color: var(--colour-bg);
    background: var(--colour-blue-main);
}

body.no-scroll,
body.show-nav {
    overflow: hidden;
}

.modal.show {
    display: block;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  border: 0;
  clip: rect(0 0 0 0);
}

/*РАЗМЕТКА
___________________*/

html {
    scroll-behavior: smooth;
    scrollbar-width: thin;
}

body {
    margin: 0;
    background-color: var(--colour-bg);
    color: var(--colour-grey);
}

.container {
    width: 100%;
    max-width: 1220px;
    margin: 0 auto;
}

.container-fullhd {
    width: 100%;
    max-width: 1920px;
    margin: 0 auto;
}

.page {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.sec {
    padding: 75px 0 0;
}


/*ОБЩЕЕ
___________________*/

.img {
    display: block;
    border-radius: var(--border-radius);
    max-width: 100%;
    height: auto;
}

a,
a:link,
a:visited,
a:hover,
a:active {
    color: inherit;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 0;

    font-family: "Montserrat", sans-serif;
}


p,
li {
    font-family: "Roboto", sans-serif;
    font-weight: 300;
    margin: 0;
}


.section__title {
    font-size: 33px;
    line-height: 1.2;
    color: var(--colour-blue-main);
}

.section__text {
    font-size: 18px;
    line-height: 1.5;
}

.section__text p {
    margin-top: 10px;
}

.text-accent {
    font-weight: 500;
}


.btn {
    margin: 0;
    padding: 0;
    border: none;
}

/*ФУТЕР
___________________*/

.footer {
    margin-top: auto;
    padding: 20px 0;
    background-image: linear-gradient(to bottom, var(--colour-blue-light), var(--colour-blue-main));

    font-family: "Montserrat", sans-serif;
    color: var(--colour-bg);
}

.footer__inner {
    display: flex;
}

.footer__1st {}

.footer__2nd {
    color: var(--colour-bg);

    width: 100%;

    display: flex;
    justify-content: space-between;
    align-items: flex-end;

    border-left: 1px var(--colour-bg) solid;
    padding-left: 12px;
}

.footer__logo {
    background: url(../img/logo-footer.svg) no-repeat center;
    background-size: contain;
    height: 142px;
    width: 148px;
    margin-right: 30px;
}

.footer__copyright {
    font-size: 14px;
    line-height: 1.1;
    font-weight: 500;
    text-transform: uppercase;
}

.footer__description {
    font-size: 12px;
    font-weight: 300;
    color: var(--colour-grey-light);
    margin: 3px 0 7px 0;
    max-width: 390px;
}

.footer__policy a {
    font-size: 11px;
    color: var(--colour-grey-light);
}

.footer__site {
    font-weight: 600;
    line-height: 1;
    text-transform: uppercase;

    margin-top: 20px;
}

.footer__btn-policy {
    background-color: rgba(0, 0, 0, 0);
    padding: 0;
    margin: 0;
    border: 0;
    font-family: "Montserrat", sans-serif;
    color: var(--colour-grey-light);
    font-size: 11px;
    line-height: 1;
    text-decoration: underline;
}


/*ХЕДЕР
___________________*/

.header {
    font-family: "Montserrat", sans-serif;
    color: var(--colour-grey);
}

.first-scr {
    width: 100%;
    height: 100vh;

    background: url('../img/img-bg.jpg') no-repeat center;
    background-size: cover;
    padding: 0 150px;

    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.header-menu {
    display: flex;
    justify-content: space-between;
    align-items: center;

    padding: 50px 0;
}

.header-menu__nav-list {
    display: flex;
    padding-left: 0;
    margin: 21px 0;
}

.header-menu__nav-list li {
    list-style-type: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.header-menu__nav-list li:not(:last-child) {
    padding-right: 30px;
}

.header-menu__nav-list li:not(:first-child) {
    padding-left: 12px;
    border-left: 1px solid var(--colour-grey);
}

.header-menu__nav-list li::before {
    content: "";
    display: block;
    width: 8px;
    height: 8px;
    background-color: var(--colour-blue-main);
    border-radius: 2px;

    opacity: 0;
    transition: opacity .2s linear;
}

.header-menu__nav-list li:hover::before {
    opacity: 1;
}

.header-menu__nav-link {
    font-family: "Montserrat", sans-serif;
    font-size: 14px;
    line-height: 1;
    font-weight: 400;
    text-decoration: none;
    text-transform: uppercase;
}

.btn-burger {
    display: none;

    width: 40px;
    height: 40px;
    background: url('../img/icon-burger.svg') no-repeat center;
}

.btn-close {
    display: none;

    width: 26px;
    height: 26px;
    background: url('../img/icon-close-inverse.svg') no-repeat center;
}


.main-message {
    width: 50%;
}

.main-message__title {
    font-family: "Montserrat", sans-serif;
    font-size: 48px;
    line-height: 1.1;
    font-weight: 800;
    color: var(--colour-blue-main);
}

.main-message__title span {
    color: var(--colour-orange);
}

.main-message__description {
    font-family: "Roboto", sans-serif;
    font-size: 20px;
    line-height: 1.3;
    font-weight: 300;

    margin: 10px 0 40px;
}

.main-message__company {
    font-size: 18px;
    line-height: 1;
    font-weight: 500;
    color: var(--colour-bg);

    display: inline-block;
    background-color: var(--colour-orange);
    padding: 7px;
    border-radius: 3px;
    margin: 0 auto;
}



.main-message__cities {
    font-size: 14px;
    line-height: 1;
    font-weight: 500;

    padding: 10px 0;

    display: flex;
    align-items: center;
}

.main-message__cities::before {
    content: "";
    display: block;
    width: 12px;
    height: 12px;
    margin-right: 7px;
    background: url("../img/icon-location.svg") no-repeat center;
    background-size: contain;
}

.header__mob-header {
    display: none;
}

.header__mob-footer {
    display: none;
}

/*АРХ.-СТР. ПРОЕКТИРОВАНИЕ
___________________*/

.sec--design {
    max-width: 1920px;
    margin: 0 auto;

    background: url('../img/img-bg-design.jpg') no-repeat right bottom;
    background-size: contain;
}

.design__text {
    width: 50%;
}

.design__scheme {
    margin-top: 200px;
}

/*ПРОЕКТНАЯ ДОКУМЕНТАЦИЯ
___________________*/

.section__text--services {
    display: flex;
    column-gap: 16px;
}

.services {
    padding: 60px 36px 20px;
    margin-top: 40px;
    border-radius: var(--border-radius);
    box-shadow: 0 0 20px rgba(0, 0, 0, .2);

    display: flex;
    flex-wrap: wrap;
    /*        gap: 20px;*/
}

.services-item {
    position: relative;

    display: flex;
    flex-direction: column;

    width: 25%;
    padding-bottom: 30px;
    padding-left: 10px;
}

.services-item:not(:first-child) {}

.services-item::after {
    content: "";
    display: block;
    height: 2px;
    width: 50px;
    margin-top: auto;
    background-color: var(--colour-blue-main);

    transition: width 0.2s linear;
}

.services-item:hover::after {
    width: 75px;
}

.service__name {
    font-size: 20px;
    line-height: 1.2;
    font-weight: 700;
}

.service__number {
    font-family: "Montserrat", sans-serif;
    font-size: 100px;
    line-height: 1;
    font-weight: 800;
    color: var(--colour-grey-light);

    position: absolute;
    z-index: -1;
    top: -40px;
    left: -20px;
}

.service__text p {
    font-size: 17px;
    line-height: 1.4;
    margin: 10px 0;
}


/*ДОКУМЕНТЫ
___________________*/
.docs {
    display: flex;
    gap: 15px;
}

.docs__text {
    width: 35%;
    display: flex;
    flex-direction: column;
}

.docs__link {
    margin-top: auto;
}

.docs__link a {
    font-family: "Montserrat", sans-serif;
    font-size: 14px;
    line-height: 1.4;
    font-weight: 500;
    text-decoration: none;
}

.docs__link::after {
    content: "";
    display: block;
    margin-top: 5px;
    height: 2px;
    width: 50px;
    background-color: var(--colour-blue-main);

    transition: width 0.2s linear;
}

.docs__link:hover::after {
    width: 75px;
}

.docs__cert {
    width: 65%;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    list-style-type: none;
    padding: 0;
    margin: 0;
}

.docs__cert__item {
    border-radius: var(--border-radius);
    box-shadow: 0 0 15px rgba(0, 0, 0, .2);
}

/*СОГЛАСОВАНИЕ
___________________*/

.agree {

}

.section__title--agree,
.section__text--agree,
.agree__company {
    text-align: center;
}

.section__text--agree {
    width: 50%;
    margin: 0 auto 15px;
}


.agree__image {
    background: url(../img/img-agree.jpg) no-repeat center bottom;
    background-size: contain;
    width: 100%;
    padding-bottom: 50%;

    display: flex;
    flex-direction: column;
    align-items: center;
}

.agree__company {
    font-family: "Montserrat", sans-serif;
    font-size: 14px;
    line-height: 1;
    font-weight: 600;
    color: var(--colour-bg);


    display: inline-block;
    background-color: var(--colour-orange);
    padding: 5px;
    border-radius: 3px;
    margin: 0 auto;
}

/*ПРОЕКТЫ
___________________*/

.projects {
    margin-top: 15px;
}

.projects__item {
    padding: 0 10px;
/*    display: none;*/
}

.projects .slick-dots {
    list-style-type: none;
    padding-left: 0;

    position: absolute;
    right: 10px;
    bottom: -16px;
    z-index: 1;

    display: flex;
}

.projects .slick-dots button {
    display: block;
    padding: 0;
    margin-left: 5px;
    background-color: var(--colour-grey-light);
    width: 12px;
    height: 12px;
    border: 2px solid var(--colour-blue-main);
    border-radius: 2px;

    color: transparent;
    font-size: 0;

    cursor: pointer;

    transition: background-color .2s linear;
}

.projects .slick-dots .slick-active button {
    background-color: var(--colour-blue-main);
}

.projects__name {
    font-family: "Montserrat", sans-serif;
    font-size: 22px;
    line-height: 1.1;
    font-weight: 700;
}

.projects__name::after {
    content: "";
    display: block;
    margin-top: 5px;
    height: 3px;
    border-radius: 1px;
    width: 100px;
    background-color: var(--colour-blue-main);

    transition: width 0.2s linear;
}

.projects:hover .projects__name::after {
    width: 125px;
}

.projects__info {
    font-family: "Roboto", sans-serif;
    font-size: 15px;
    line-height: 1.3;
    font-weight: 400;

    margin-top: 5px;
}

.projects__details {
    margin-top: 10px;
    width: 75%;
}

.projects__date {
    display: inline-block;
    padding: 7px;
    border-radius: 3px;
    background-color: var(--colour-blue-main);
    margin-top: 10px;

    font-family: "Montserrat", sans-serif;
    font-size: 14px;
    line-height: 1;
    font-weight: 700;
    color: var(--colour-bg);
}

.container-fullhd--bg {
    padding-bottom: 25px;
    background-image: linear-gradient(to bottom, var(--colour-bg) 50%, var(--colour-grey-light) 50%);


}

/*КЛИЕНТЫ
___________________*/

.clients {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;

    list-style-type: none;
    padding: 0;
    margin: 0;
}

/*КОНТАКТЫ
___________________*/

.contacts {
    font-family: "Montserrat", sans-serif;

    display: grid;
    grid-template-columns: .3fr .7fr;
    border-bottom: 1px var(--colour-grey) solid;
    padding-bottom: 15px;
    margin-bottom: 15px;
}

.contacts__info {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.contacts__company {
    font-size: 18px;
    line-height: 1.2;
    font-weight: 600;
    color: var(--colour-grey);

    margin-top: 10px;
}

.contacts__text p {
    font-family: "Montserrat", sans-serif;
    font-size: 16px;
    line-height: 1.4;
    font-weight: 300;

    margin-top: 5px;
}

.contacts__contacts {
    font-style: normal;
    font-size: 16px;
    line-height: 1.4;
    margin: 30px 0;
}

.contacts__tel {
    font-size: 22px;
    line-height: 1;
    font-weight: 600;
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}

.contacts__tel::before {
    content: "";
    display: block;
    width: 21px;
    height: 21px;
    background-image: url(../img/icon-phone.svg);
    margin-right: 5px;
}

.contact__mail {
    margin-top: 10px;
    display: flex;
    align-items: center;
}

.contact__mail::before {
    content: "";
    display: block;
    width: 14px;
    height: 15px;
    background: url(../img/icon-mail.svg) no-repeat center;
    margin-right: 11px;
}

.contacts__location {
    margin-top: 10px;
    display: flex;
}

.contacts__location::before {
    content: "";
    display: block;
    width: 14px;
    height: 15px;
    background: url(../img/icon-location.svg) no-repeat center;
    margin-right: 11px;
    margin-top: 5px;
}

.contacts__site {
    font-family: "Montserrat", sans-serif;
    font-size: 18px;
    line-height: 1;
    font-weight: 600;
    text-transform: uppercase;
}

.contacts__map {
    height: 500px;
    border-radius: var(--border-radius);
}

/*КНОПКА НАВЕРХ
___________________*/

.btn-up {
    background: var(--colour-grey) url(../img/icon-btn-up.svg) no-repeat;
    background-position: center 15px;
    width: 50px;
    height: 50px;
    border-radius: var(--border-radius);
    margin: 21px;
    position: fixed;
    bottom: 0;
    right: 0;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.1s linear;

}


.btn-up--visible {
    opacity: 1;
}

/*МОДАЛКА
___________________*/

.modal {
    display: none;
    width: 100%;
    height: 100%;
    background-color: var(--colour-grey-light);
    opacity: .97;

    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;

    overflow-y: auto;
    scrollbar-width: thin;
}

.modal--show {
    display: block;
}

.modal-wraper {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.modal--forms {
    background-image: linear-gradient(to bottom, var(--colour-blue-light), var(--colour-blue-main));
}

.modal__inner {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.modal__inner--forms {
    max-width: 450px;
    padding: 55px 50px 40px 50px;

    background-color: var(--colour-grey-light);
    border-radius: var(--border-radius);
    border: 1px solid var(--colour-grey);
    box-shadow: 10px 10px 20px rgba(0, 0, 0, .3);

    position: relative;
}

.modal__header {
    padding: 50px 150px;
    width: 100%;
}

.modal__btn-close-wrapper {
    background-color: var(--colour-blue-main);
    border-bottom-left-radius: var(--border-radius);
    position: fixed;
    top: 0;
    right: 0;
}
.modal__btn-close {
    width: 50px;
    height: 50px;
    background: url(../img/icon-close.svg) no-repeat center;

    position: fixed;
    top: 0;
    right: 0;

    transition: transform .2s linear;

    cursor: pointer;
}

.modal__btn-close:hover {
    transform: rotateZ(180deg);
}



.modal__btn-close-form {
    position: absolute;
    top: 0;
    right: 0;
}


.modal__main {
    margin: 50px 0;
}

.modal__h1 {
    font-family: 'Montserrat', sans-serif;
    color: var(--colour-blue-main);
    font-size: 33px;
    line-height: 1.2;
    font-weight: 700;
}

.modal__h2 {
    font-family: 'Montserrat', sans-serif;
    color: var(--colour-grey);
    font-size: 20px;
    line-height: 1.2;
    font-weight: 400;
}

.modal__h3 {
    font-family: 'Montserrat', sans-serif;
    color: var(--colour-grey);
    font-size: 18px;
    line-height: 1.2;
    font-weight: 600;

    margin-top: 25px;
}

.text--modal p,
.modal__list li {
    font-size: 16px;
}

.modal__list {
    padding-left: 44px;
}

.modal__list--l2 {
    padding-left: 58px;
}




/*MEDIA QUERIES
___________________*/

@media (max-width: 1570px) {
    .first-scr {
        padding: 0 21px;
    }

    .design__text .section__text {
        width: 50%;
    }
}

@media (max-width: 1420px) {
    .design__text {
        width: 100%;
    }

    .sec--design {
        background-size: 60%;
    }
}

@media (max-width: 1320px) {

    .btn-burger {
        display: block;
        margin-left: 20px;
    }

    .btn-close {
        display: block;
    }

    .header {
        position: relative;
    }

    .header-menu__nav {
/*        display: none;*/
    }

    .header-menu__nav {
        display: flex;
        flex-direction: column;

        position: absolute;
        top: 0;
        left: 0;
        z-index: 10;
        width: 100%;
        min-height: 100vh;
        background-image: linear-gradient(to bottom, var(--colour-blue-light), var(--colour-blue-main));

        padding: 21px;

        transform: translateY(-100%);
        transition: transform .2s ease-out;
    }


    .header-menu__nav.show {
        transform: translateY(0);
    }


    .header__mob-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .header__mob-header img {
        border-radius: 0;
        transform: translateY(5px);
    }

    .header-menu__nav-list {
        flex-direction: column;
        align-items: flex-end;
    }

    .header-menu__nav-list li {
        color: var(--colour-bg);
        padding: 15px 0;
    }

    .header-menu__nav-list li:not(:first-child) {
        padding-left: 0;
        border-left: none;
    }

    .header-menu__nav-list li:not(:last-child) {
        padding-right: 0;
    }

    .header-menu__nav-list li::before {
        background-color: var(--colour-bg);
    }

    .header-menu__nav-link {
        font-size: 16px;
        line-height: 1.2;
    }

    .header__mob-footer {
        display: flex;
        flex-direction: column;
        align-items: center;
        margin-top: auto;
    }

    .header__mob-site {
        font-weight: 600;
        line-height: 1;
        text-transform: uppercase;
        color: var(--colour-bg);

        margin-top: 20px;
    }
}


@media (max-width: 1220px) {
    .container {
        padding: 0 21px;
    }

    .design__text .section__text {
        width: 75%;
    }
}

@media (max-width: 1290px) {}


@media (max-width: 1070px) {
    .services-item {
        width: 50%;
    }

    .docs {
        flex-direction: column;
    }

    .docs__text,
    .docs__cert {
        width: 100%;
    }

    .docs__link {
        margin-top: 20px;
    }

    .section__text--agree {
        width: 100%;
    }
}

@media (max-width: 970px) {
    .design__scheme {
        margin-top: 150px;
    }

    .contacts {
        grid-template-columns: .4fr .6fr;
    }

}

@media (max-width: 870px) {
    .design__scheme {
        margin-top: 120px;
    }

    .clients {
        grid-template-columns: repeat(4, 1fr);
    }

    .projects__details {
        width: 100%;
    }
}

@media (max-width: 770px) {
    .footer__2nd {
        flex-direction: column;
        justify-content: flex-end;
        align-items: flex-start;
    }

    .main-message {
        width: 100%;
        background-color: rgb(255 255 255 / .5);
        padding: 10px;
        border-radius: var(--border-radius);
        margin-bottom: 21px;
    }

    .main-message__cities {
        display: none;
    }

    .design__scheme {
        margin-top: 100px;
    }

    .design__text .section__text {
        width: 100%;
    }

    .services-item {
        width: 100%;
    }

    .section__text--services {
        display: block;
    }


}

@media (max-width: 670px) {
    .sec--design {
        background-size: 75%;
    }

    .docs__cert {
        grid-template-columns: repeat(2, 1fr);
    }

    .contacts {
        grid-template-columns: 1fr;
    }

    .contacts__map {
        margin-top: 15px;
    }

}

@media (max-width: 570px) {
    .section__title {
        font-size: 28px;
    }

    .design__scheme {
        margin-top: 150px;
    }

    .sec--design {
        background-size: 100%;
    }

    .clients {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 500px) {
    .sec {
        padding-top: 45px;
    }

    .footer__inner {
        flex-direction: column;
    }

    .footer__2nd {
        margin-top: 30px;
    }

    .main-message__title {
        font-size: 40px;
    }

    .main-message__description {
        font-size: 18px;
        margin-bottom: 20px;
    }

    .header-menu {
        padding-top: 21px;
    }

    .design__scheme {
        margin-top: 130px;
    }

    .sec--design {
    }

    .clients {
        grid-template-columns: repeat(2, 1fr);
    }

}

@media (max-width: 482px) {
    .design__scheme {
        margin-top: 120px;
    }
}

@media (max-width: 370px) {
    .main-message__title {
        font-size: 34px;
    }

    .main-message__description {
        font-size: 16px;
    }

    .main-message__company {
        font-size: 16px;
    }

    .sec--design {
        background-size: 120%;
        background-position: center bottom;
    }

    .docs__cert {
        grid-template-columns: 1fr;
    }
}