@media only screen and (min-width: 750px) {

    /*h2 {
        position: absolute;
        top: 50%;
        margin: -37px 0 0 0;
    }*/
    .main_section_text_wight {
        margin: 0 auto 50px;
    }

    .main_section_logo img {
        width: 60%;
        margin: 10% 25% 10% 25%;
    }

    .main_section_logo {
        width: 50%;
    }

    .main_section_text {
        width: 50%;
    }

    .main_section_text_text {
        width: 80%;
        height: 50%;
        position: relative;
        flex: 0 0 200px;
        max-height: 200px;
        -webkit-display: flex;
        -moz-display: flex;
        -ms-display: flex;
        -o-display: flex;
        -khtml-display: flex;
        display: flex;
        align-items: center;
    }

    .main_section_mission {
        margin: 30px auto;
    }

    .main_section_mission_rus, .main_section_mission_tat {
        margin: 20px 0 20px 0;
        padding: 0 15%;
    }

    .video_1 {
        width: 80%;
        margin: 5% 10% 2% 10%;
    }

    .video_2 {
        width: 80%;
        margin: 2% 10% 2% 10%;
    }

    .video_3 {
        width: 80%;
        margin: 2% 10% 5% 10%;
    }

    .social {
        margin-right: 15px;
    }

    .contact_section {
        margin: 40px 0;
    }
}

@media only screen and (max-width: 750px) {
    h2 {
        font-size: 20px;
        line-height: 28px;
    }

    .main_section header {
        margin: auto;
        min-height: 110px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .main_section h1 {
        font-size: 20px;
        line-height: 26px;
    }

    .main_section_logo img {
        width: 40%;
        margin: auto;
        /*margin: 5% 20% 5% 20%;*/

    }

    .main_section_text_wight {
        -webkit-flex-flow: column;
        -moz-flex-flow: column;
        -ms-flex-flow: column;
        -o-flex-flow: column;
        -khtml-flex-flow: column;
        flex-flow: column;
        flex-grow: 1;
    }

    .main_section_logo {
        width: 100%;
        margin: auto;
        display: flex;
        flex-flow: column nowrap;
        align-items: center;
        justify-content: center;
        flex-grow: 1;
    }

    .main_section_text {
        width: 100%;
        padding: 0;
    }

    .main_section_text_text {
        width: 90%;
        margin: auto;
    }

    .main_section_mission_rus, .main_section_mission_tat {
        margin: 20px;
    }

    .video_1, .video_2, .video_3, .video_4, .video_5, .video_6 {
        width: 98%;
        margin: 2% 10% 2% 10%;
    }

}

@media only screen and (max-width: 405px) {
    .social {
        margin: 10px 0 5px 0;
    }
}

@media only screen and (min-width: 405px) {
    .social {
        display: inline-block;
    }
}

@media only screen and (min-width: 1150px) {
    .main_section_links_social, .main_section_links_pfr, .main_section_links_pfrrt, .main_section_links_phone {
        margin: 25px 0 25px 0;
        width: 100%;
    }

}

@media only screen and (max-width: 1150px) {
    .main_section_links_social, .main_section_links_pfr, .main_section_links_pfrrt, .main_section_links_phone {
        margin: 15px 0 15px;
        width: 100%;
    }

    .text_footer_text {
        margin: 0 0 0 20px;
    }
}

@media only screen and (max-width: 480px) {

    .contact_form {
        max-width: 300px;
    }

    form input[type=text],
    form input[type=name],
    form input[type=email] {
        width: 300px;
    }

    textarea {
        width: 300px;
    }

}

@media only screen and (min-width: 800px) {
    .modal_video_close {
        height: 50px;
        width: 50px;
    }
}

@media only screen and (max-width: 800px) {
    .modal_video_close {
        height: 35px;
        width: 35px;
    }
}