button {
    background: transparent;
    -webkit-box-shadow: none;
    box-shadow: none;
    border: none;
    cursor: pointer;
}
/* ================================================================= */
@media (max-width: 1160px) {
    .work__wrapper {justify-content: space-evenly;}
    .banners .col-last {  
        width: 100%;  
        flex-direction: row;
        justify-content: space-evenly;
        align-items: flex-start;
    }
}
/* ============================================================ */
@media (max-width: 1147px) {
    .title__big { font-size: 80px; }
}
/* ================================================================ */
@media (max-width: 1025px) {
    .title__big { font-size: 70px; }
}
/* ================================================================= */
@media (max-width: 915px) {
    .title__big { font-size: 65px; }
}
/* ================================================================ */
@media (max-width: 915px) {
    .header__menu { font-size: 18px; }
    .header__menu li + li { margin-left: 35px; }
    .header__soc-style { font-size: 40px; }
}
/* ================================================================== */
@media (max-width: 900px) {
    .soc-visibl { display: none; }
    .header__title {
        font-size: 75px;
        line-height: 98px;
    }
    .col30 {width: 49%;}
    .col30-last {
        display: -webkit-flex;
        display: -moz-flex;
        display: -ms-flex;
        display: -o-flex;
        display: flex;
        justify-content: space-evenly;
        align-items: flex-start;
        flex-wrap: wrap;
        width: 100%;
    }
    .col30-last img {
        max-width: 49%;
    }
    .col30-last:nth-child(3) {
        display: none;
    }
    .desc-title {display: none;    }
    .mob-title {display: inline;    }
    .title__big {font-size: 100px;    }
}
/* ======================================================== */
@media (max-width: 810px) {
    .btn {padding: 17px 40px;
    line-height: 25px;}
}
/* ======================================================= */
@media (max-width: 770px) {
    .banners .col-last {    
        width: auto;
        flex-direction: column;
    }
}
/* ======================================================== */
@media (max-width: 680px) {
    .about__desc {  width: 265px; }
    .about__desc::before {height: 65px;}
}
/* ========================================================= */
@media (max-width: 650px) {
    .header__menu li + li { margin-left: 20px; }
    .title__big {font-size: 80px;}
}
/* ========================================================== */
@media (max-width: 610px) {
    .header__title {
        font-size: 70px;
        line-height: 88px;
    }
    .header__mobile {
        display: flex;
        justify-content: space-between;
        align-items: center;
        min-height: 55px;
    }
    .header__wrapper { display: none; }
    .menu__btn-mobile_open {background: #1363aa;}
    .menu__btn-mobile_open span {
        background: #ffffff;
        width: 45px;
        height: 3px;
        display: block;
        margin-bottom: 8px;
        opacity: 0.5;
    }
    .menu__btn-mobile_open span:nth-child(2) {
        width: 30px;
        margin: 0 auto 8px;
    }
    .menu__btn-mobile_open span:nth-child(3) {
        margin-bottom: 0;
    }
    .menu__btn-mobile_close {
        margin-top: 50px;
        margin-bottom: 60px;
    }
    .menu__items {
        display: none;
        color: #fff;
        margin-bottom: 15px;
        height: 100vh;
        width: 100vw;
        
    }
    .menu__mobile {background: #22253f; margin-left: -15px;}
    .menu__items li{
        margin-bottom: 30px;
        font-size: 22px;
    }

}
/* ==================================================== */
@media (max-width: 570px) {
    .title__big {font-size: 60px;}
    .contant-info {
        display: flex;
        flex-direction: column;
        flex-wrap: wrap;
    }
    .about {display: flex;}
    .about__img {margin-right: 40px;}
    .about__desc {width: 250px;}
    .about__desc::before {height: 90px;}
    .сontact-info_pos_left {width: 100%; margin-bottom: 20px;}
    .сontact-info_pos_right {
        display: flex;
        justify-content: space-evenly;
        width: 100%;
        margin-top: 25px;
    }
    .header__title {
        font-size: 60px;
        line-height: 80px;
    }
    .buttons-wrap {flex-direction: column; margin-top: 15px;}
    .btn {        width: 65%;    }
    .btn__all { margin-top: 15px;}
    .btn__zak {margin-right: 0px; }
    .portfolio { padding: 60px 0 80px; }
    .about__why-list { flex-direction: column; margin-top: 25px; text-align: center;}
    .about__why-list::before {
        content: '';
        width: 70%;
        height: 5px;
        background: #1363aa;
        margin: 0 auto 20px;
        display: inline-block;
    }
    .ddd {width: 100%;}
    .about__why-item {margin-bottom: 10px;}
    .about__why-desc {margin-bottom: 35px;}
    .col30 {width: 70%;}
    /* .contact__soc_ {margin-bottom: 15px;} */
}
/*  =============================== 550 =================================== */
@media (max-width: 550px) {
    .btn {width: 80%;}
    .about {justify-content: space-between;}
    .about__img {margin-right: 0;}
    .about__desc {max-width: 45%;}
    .title-small {font-size: 45px; line-height: 50px;}
}
/*  ================================ 500 =========================================== */
@media (max-width: 500px) {
    .about { flex-direction: column;  align-items: center;}
    .about__img {margin-right: 0; margin-bottom: 10px;}
    .about__desc {max-width: 100%; width: 65%;}
    .about__desc::before {height: 68px;}
    .сontact-info_pos_right {margin-top: 0; margin-bottom: 10px;}
    #сontact {margin-top: 70px;}
    .about__why-list::before {margin: 10px auto 35px;}
}
/* ============================= 450 ============================================== */
@media (max-width: 450px) {
    .btn {width: 90%;}
    .about__desc {width: 75%; min-width: 315px;}
    .about__desc::before {height: 45px;}
}
/* ================================== 430 ============================================= */
@media (max-width: 430px) {
    .header__title {font-size: 50px;   line-height: 70px; }
    .title-small {font-size: 45px; line-height: 56px;}
    .portfolio {padding: 70px 0 80px;}
    .col30 {width: 90%;}

    .work__wrapper {margin-top: 20px;}
    .portfolio {padding-top: 50px;}
    .сontact__soc {
        height: 40px;
        margin-right: 0;
        margin-bottom: 10px;
    }
    .contact__text-wrapper {text-align:center;}
    .contact__soc_ { margin-bottom: 0px; display: flex; flex-direction: column;}
}
/* ================================= 400 ================================================*/
@media (max-width: 400px) {
    .btn {width: 100%;}
    .header__description {    font-size: 20px;        line-height: 28px;}
    .header__title {font-size: 45px;  line-height: 64px;  margin-top: 35%; }
    .title-small {  font-size: 40px; line-height: 50px; }
}
/* ===========================380 ================================================ */
@media (max-width: 380px) {
    .title__big {font-size: 50px;}
    .header__title {
        font-size: 45px;
        line-height: 60px;
        margin-top: 35%;
    }
    .about__desc {
        min-width: 100%;
        text-align: center;
    }
    .about__desc::before {content: none;}
}   
/* ========================== 350 ========================================== */
@media (max-width: 350px) { 
    .header__title {
        font-size: 38px;
        line-height: 55px;
    }
    .portfolio {
        padding-top: 30px;
    }
    .portfolio__site .work__item {
        margin-right: 0;
    }
    .portfolio__site .work__item img{
        max-width: 98%;
    }
    .col30 {
        width: 95%;
    }
}