body{
    margin: 0 0;
    padding: 0 0;
}
header{
    width: 100%;
    position: fixed;
    background-color: #828080;
    height: 100px;
    top: 0;
    z-index: 15;
}
main{
    margin-top: 100px;
    height: content-box;
}
section{
    text-align: center;
}


    /*header*/


.logo-container-left , nav , .logo-container-right{
    float: left;
}
.logo-container-left{
    box-sizing: border-box;
    width: 25.68359375%;
    margin-left: 9px;
    margin-top: 8px;
    border: 5px #a4a4a4 solid;
    border-radius: 12px;
    height: 81px;
}
.logo-container-left p{
    font-family: Tahoma;
    font-size: 1.5em;
    color: #e0dcdc;
    margin-top: 9px;
    margin-left: 12px;
    margin-right: -12px;
    width: 79.05138339920949%;
    float: left;
}
.logo-container-left img{
    width: 19.94861660079051%;
    float: left;
    padding-top: 12px;
}
nav{
    width: 63.20703125%;
    text-align: right;
    margin-top: 38px;
    word-spacing: 30px;

}
.active{
    display: block;
}
nav a{
    font-size: 1.125em;
    text-decoration: none;
    text-transform: lowercase;
    color: #fffdfd;

    transition: color 0.2s linear;
}

nav a:hover{
    color: black;
}

.nav-a:hover:after{
    display: block;
}
.word-normal{
    word-spacing: normal;
}
.nav-toggle{
    position: absolute;
    top: 30px;
    right: 30px;
    width: 30px;
    z-index: 1;
    height: 30px;

    font-size: 0;
    color: transparent;
    background: none;
    border: 0;

    cursor: pointer;
}
.nav-toggle__item{
    width: 100%;
    height: 3px;

    z-index: 1;

    background-color: #fffdfd;
    display: block;

    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    bottom: 0;
    margin: auto;

}
.nav-toggle__item:before ,
.nav-toggle__item:after{
    content: "";
    width: 100%;
    height: 3px;

    background-color: #fffdfd;

    position: absolute;
    left: 0;
    z-index: 1;
}
.nav-toggle__item:before{
    top: -8px;
}
.nav-toggle__item:after {
    bottom: -8px;
}







    /*section intro*/







.intro-section{
    border-bottom: 4px #828080 solid;
}
h2{
    text-align: center;
    font-size: 2.25em;
    padding-top: 100px;
    padding-bottom: 180px;
    width: 100%;
    color: #827878;
}
.intro-image{

    word-spacing: 20%;
    text-align: center;
    width: 97%;
    height: 120px;
}
.img-intro{
    width: 20%;
    float: left;
    text-align: center;
}
.word-intro{
    width: 20%;
    float: left;
    text-align: center;
}






    /*section about us*/






h3{
    font-size: 2.25em;
    font-family: "Cambria Math";
}
.about-us-text{
    font-family: Corbel;
    font-size: 1.125em;
    width: 76.5625%;
    padding: 0 11.71875%;
    line-height: 170%;
}
.about-us-images-phone{
    width: 76.5625%;
    padding: 0 11.71875%;
}
.about-us-images-phone img{
    width: 100%;
    height: auto;
}






    /*section our production*/







.section_our-production{
    background: url("graphics/images/фон.png") no-repeat #828080 center 50%;
    height: 885px;
    background-size: cover;
}

.cols-container{
    padding-top: 35px;
}
.cols{
    width: 33.3%;
    float: left;
    padding: 0 25px 200px;
    box-sizing: border-box;
    height: 740px;
}
.cols img{
    width: 65%
}
.active-image{

}
.cols img:hover{
    z-index: 20;
    left: 400px;
    transform: scale(1.5);
}
.vertical-word{height: 26%}









    /*section advantages*/







.section-advantages{
    height: 275px;
}
.advantages{text-align: center; padding-left: 10px}
.cols-advantages{
    width: 20%;
    height: 380px;
    float: left;
    box-sizing: border-box;
    text-align: center;
    padding: 260px 25px 0;
}
.cols-advantages p{
    border-top: 4px #828080 solid;
    padding-top: 20px;
    line-height: 150%;
    font-size: 1em;
}






    /*Footer section*/





footer{
    background-color: #828080;
    margin-top: 500px;
    height: 567px;
    text-align: center;
}
.header-footer{
    height: 146px;
    background-color: #625f5f;
    border-left: none;
}
.cols-footer{
    width: 33.3%;
    float: left;
    padding: 0 25px;
    box-sizing: border-box;
}

.cols-footer h4{
    font-size: 1.75em;
    height: 44px;
    vertical-align: center;
}
h4 img{
    padding-right: 10px;
}

.contacts{
    line-height: 160%;
    font-size: 1.125em;
    margin-top: 80px;
    height: 44px;
}
.email{
    padding-top: 80px;
    font-size: 1.5em;
    color: blue;
    width: 100%;
    margin-right: 0px;
}
.work{
    font-size: 1.125em;
    padding-top: 80px;
    height: 44px;
}





    /*media-file*/





@media (min-width: 1025px){
    .logo-container-left p{
        font-size: 1.375em;
    }
}
@media (min-width: 701px) {
    .nav-toggle{
    display: none;}
    .container-nav{display: none;}
}


@media (min-width: 1025px) {
    .logo-container-right{padding-top: 20px; float: right}
    nav{width: 69%}
    .logo-container-left p{width: 80%;}
    /*.logo-container-left img{width: 37%}*/
    .logo-container-left{width: 21%;}
}
@media (min-width: 450px){.iphone320-adaptation{display: none}}
@media (max-width: 990px) {
    .logo-container-left p{font-size: 1.375em;}
}
@media (max-width: 915px) {
    .logo-container-left p{font-size: 1.25em;}
    .logo-container-right{padding-left: 20px}
    .cols img{width: 75%}
    .cols{padding-bottom: 0px}
}
@media (max-width: 840px) {
    .logo-container-left p{font-size: 1.125em;}
    nav{width: 68.70703125% }
    .cols-advantages p{font-size: 0.875em}

}
@media (max-width: 820px) {
    .logo-container-left p{font-size: 1.125em;}
    .intro-image{width: 100%}
    .cols-footer h4{font-size: 1.25em;}
    .logo-container-right{
        display: none;
    }
}
@media (max-width: 790px) {
    .cols-advantages{padding-top: 150px}
}
@media (max-width: 770px) {
    nav a{font-size: 1em}
    .logo-container-left p{font-size: 1em;}
    .word-intro{font-size: 0.875em}
    .cols img{width: 85%}
    .section_our-production{height: 800px}


}
@media (max-width: 700px) {

    .logo-container-left p{font-size: 1em;}
    .logo-container-left{height: 70px}
    .cols-advantages p , .word-intro{font-size: 0.75em}
    .cols-advantages{padding: 0 15px}
    .advantages{margin: 0 0 ; height: 130px}
    .cols{height: 700px}
    .cols-footer h4{font-size: 1.25em;}
    footer{margin-top: 380px;}

    nav a{
        width: 100%;
        top: 100%;
        font-size: 1.125em;
        flex-wrap: wrap;
        display: block;
        height: auto;
        padding-top: 8px;
    }
    nav{
        width: 100%;
        background-color: #828080;
        text-align: center;
        position: absolute;
        top: 50%;
        left: 0;
        right: 0;
        height: max-content;
        display: none;
        text-align: left;
        padding-left: 15px;
        border-top: 3px solid #625f5f;
        height: 160px;
    }
}
@media (max-width: 670px) {
    .advantages{text-align: left}
    .cols-advantages{
        text-align: left;
        height: auto;
        width: 100%;
        float: left;
        padding-left: 35px;
    }
    h4{margin-bottom: 0; display: none ; padding-top: 60px}
    .cols-advantages p{
        margin-top: 0;
        padding: 0 0 0 25px;
        border-top: none;
        border-left: 10px #828080 solid;
        margin-left: 0px;
        box-sizing: content-box;
        font-size: 0.875em;
    }
    .cols-footer h4{font-size: 1em; display: block}
    .work , .contacts , .email{
        padding: 15px 0;
        margin: 0 0;
    }
    .contacts{font-size: 1em}
    .email{font-size: 1em; padding-top: 40px}
    .work{font-size: 1em; padding-top: 40px}
}
@media (max-width: 620px) {
    .logo-container-left p{font-size: 0.75em;}
    .logo-container-left{margin-top: 10px; height: 60px}
    nav{margin-top: 24px}
    .cols{padding: 0 0 ; height: 680px}
    .cols img{width: 85%}
    .cols-advantages p{font-size: 0.75em}
}
@media (max-width: 570px) {
    .logo-container-right{display: none;}
    .cols-footer{padding: 0 15px;}
    footer{margin-top: 200px;height: 410px}
}

@media (max-width: 550px) {
    header{height: 80px;}
    .nav-toggle{
        top: 10px;
    }
    .logo-container-left{
        height: 50px;
        border-width: 4px;
        width: 31.68359375%;
    }
    .logo-container-left img{padding-top: 9px}
    .logo-container-left p{margin-left: 8px;}
    .intro-section{height: 900px}
    .intro-image{
        width: 25%;
        float: left;
        height: 540px;
    }
    .img-intro img{width: 100%}
    .img-intro{
        float: none;
        padding-top: 20px;
        padding-left: 45px;
        width: 70px;
    }
    .word-intro{
        float: none;
        height: 49px;
        padding-top: 45px;
        font-size: 1em;
    }
    .section_our-production{height: 680px}
    .vertical-word{height: 180px}
    .cols{height: 580px}
}
@media (max-width: 502px) {
    .intro-image{width: 35%}
    .about-us-text{font-size: 1em}
    .section_our-production{height: 550px}
    .vertical-word{height: 80px}
    .cols{height: 460px}
    .cols-footer{padding: 0 5px;}
    .contacts , .email , .work{
        font-size: 0.875em;
    }
}
@media (max-width: 450px) {
    .header-footer{
        display: none;
    }
    .cols-footer img , .cols-footer h4 , .work{
        display: none;
    }
    .cols-footer{
        width: 100%;
        float: none;
        text-align: left;
    }
    .iphone320-adaptation p{
        text-align: left;
        padding-top: 18px;
        font-size: 1.25em;
        color: white;
    }
    .iphone320-adaptation , .contacts , .email{
        padding: 0 0 0 13px;
        font-size: 1em;
    }
    .email{
        padding-top: 55px;
    }
}
@media (max-width: 430px) {
    header{height: 70px;}
    .logo-container-left p{font-size: 0.625em;}
    .section_our-production{height: 500px}
    .vertical-word{height: 30px}
    .cols{height: 400px}

}
@media (max-width: 380px) {
    header{height: 60px;}
    .nav-toggle{}
    .logo-container-left{
        border: none;
        margin-left: 4px;
        margin-top: 0;
    }
    .logo-container-left p{font-size: 0.75em;margin-top:12px}
    h2{padding:75px 0}
    .logo-container-left img{display: none;}
    .logo-container-left{width: 36.68359375%;}
    .intro-image{width: 50%}
    .vertical-word{height: 90px}
    .advantages{font-size: 1.875em}
    .cols-advantages p{
        padding-left: 15px;
    }
    .iphone320-adaptation p{font-size: 1.25em;}
    .iphone320-adaptation , .contacts , .email{font-size: 1em;}
    footer{
        height: 280px;
    }
}