.site-content {
    max-width: 1100px;
    height: 100vh;
    margin-left: auto;
    margin-right: auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.site-content__headline {
    font-weight: 200;
    color: #ffffff;
    font-size: calc(2vw + 10px);
}

.menu-icon {
    height: 30px;
    width: 29px;
    position: absolute;
    z-index: 9999;
    right: 110px;
    top: 31px;
    cursor: pointer;
    z-index: 99999999999;
}

.menu-icon__line {
    height: 2px;
    width: 19px;
    display: block;
    background-color: #ffffff;
    margin-bottom: 4px;
    transition: background-color .5s ease, -webkit-transform .2s ease;
    transition: transform .2s ease, background-color .5s ease;
    transition: transform .2s ease, background-color .5s ease, -webkit-transform .2s ease;
}

.menu-icon__line2 {
    height: 2px;
    width: 30px;
    display: block;
    background-color: #000;
    margin-bottom: 3px;
    transition: background-color .5s ease, -webkit-transform .2s ease;
    transition: transform .2s ease, background-color .5s ease;
    transition: transform .2s ease, background-color .5s ease, -webkit-transform .2s ease;
}

.menu-icon__line-left {
    width: 19px;
}

.menu-icon__line-right {
    width: 19px;
    float: left;
}




.nav {
    position: fixed;
    z-index: 1;
}

.nav:before,
.nav:after {
    content: "";
    position: fixed;
    width: 1920px;
    height: 100vh;
    background: rgba(234, 234, 234, 0.2);
    z-index: -1;
    transition: -webkit-transform cubic-bezier(0.77, 0, 0.175, 1) 0.8s;
    transition: transform cubic-bezier(0.77, 0, 0.175, 1) 0.8s;
    transition: transform cubic-bezier(0.77, 0, 0.175, 1) 0.8s, -webkit-transform cubic-bezier(0.77, 0, 0.175, 1) 0.8s;
    -webkit-transform: translateX(0%) translateY(-100%);
    transform: translateX(0%) translateY(-100%);
}

.nav:after {
    background: #1d1d1d;
    transition-delay: 0s;
}

.nav:before {
    transition-delay: .1s;

}

.nav__content {
    position: fixed;
    top: 50%;
    -webkit-transform: translate(0%, -50%);
    transform: translate(0%, -50%);
    width: 80%;
    text-align: center;
    font-size: calc(2vw + 10px);
    font-weight: 200;
}


.nav__list {
    width: 10%;
    margin-left: 300px;
    position: relative;
}


.nav__list-item {
    position: relative;
    display: inline-block;
    transition-delay: 0.8s;
    opacity: 0;
    -webkit-transform: translate(0%, 100%);
    transform: translate(0%, 100%);
    transition: opacity .2s ease, -webkit-transform .3s ease;
    transition: opacity .2s ease, transform .3s ease;
    transition: opacity .2s ease, transform .3s ease, -webkit-transform .3s ease;
    margin-right: 25px;
}

.nav__list-item:before {
    content: "";
    position: absolute;
    background: #fff;
    width: 20px;
    height: 1px;
    top: 100%;
    -webkit-transform: translate(0%, 0%);
    transform: translate(0%, 0%);
    transition: all .3s ease;
    z-index: -1;
    margin-top: -3px;
}

.nav__list-item.nav_com:before {
    content: "";
    position: absolute;
    background: #fff;
    width: 472px;
    height: 1px;
    top: 100%;
    -webkit-transform: translate(0%, 0%);
    transform: translate(0%, 0%);
    transition: all .3s ease;
    z-index: -1;
}

.nav__list-item.nav_ser:before {
    content: "";
    position: absolute;
    background: #fff;
    width: 375px;
    height: 1px;
    top: 100%;
    -webkit-transform: translate(0%, 0%);
    transform: translate(0%, 0%);
    transition: all .3s ease;
    z-index: -1;
}

.nav__list-item.nav_sol:before {
    content: "";
    position: absolute;
    background: #fff;
    width: 465px;
    height: 1px;
    top: 100%;
    -webkit-transform: translate(0%, 0%);
    transform: translate(0%, 0%);
    transition: all .3s ease;
    z-index: -1;
}

.nav__list-item.nav_con:before {
    content: "";
    position: absolute;
    background: #fff;
    width: 458px;
    height: 1px;
    top: 100%;
    -webkit-transform: translate(0%, 0%);
    transform: translate(0%, 0%);
    transition: all .3s ease;
    z-index: -1;
}


.nav__list-item:before {
    
}

.nav__list-item:hover:before {
    width: 100%;
}

body.nav-active .menu-icon__line {
    background-color: #000;
    -webkit-transform: translateY(5px) rotate(-45deg);
    transform: translateY(5px) rotate(-45deg);
    background-color: white !important;
}


body.nav-active .menu-icon__line2 {
    background-color: #000;
    -webkit-transform: translateX(0px) rotate(-45deg);
    transform: translateX(0px) rotate(-45deg);
    background-color: white !important;
}

body.nav-active .menu-icon__line-left {
    -webkit-transform: translateX(2px) rotate(45deg);
    transform: translateX(3px) rotate(45deg);
    background-color: white;
    display: none;
}

body.nav-active .menu-icon__line-right {
    -webkit-transform: translateY(-1px) rotate(44deg);
    transform: translateY(-1px) rotate(44deg);
}

body.nav-active .nav {
    visibility: visible;
    position: absolute;
    z-index: 99;
}

body.nav-active .nav:before,
body.nav-active .nav:after {
    -webkit-transform: translateX(0%) translateY(0%);
    transform: translateX(0%) translateY(0%);
}

body.nav-active .nav:after {
    transition-delay: .1s;
}

body.nav-active .nav:before {
    transition-delay: 0s;
}

body.nav-active .nav__list-item {
    opacity: 1;
    -webkit-transform: translateX(0%);
    transform: translateX(0%);
    transition: opacity .3s ease, color .3s ease, -webkit-transform .3s ease;
    transition: opacity .3s ease, transform .3s ease, color .3s ease;
    transition: opacity .3s ease, transform .3s ease, color .3s ease, -webkit-transform .3s ease;
}

body.nav-active .nav__list-item:nth-child(0) {
    transition-delay: 0.5s;
}

body.nav-active .nav__list-item:nth-child(1) {
    transition-delay: 0.6s;
    color: white;
    font-size: 80px;
    letter-spacing: 6px;
    margin-bottom: 65px;
    cursor: pointer;
    height: 108px;

}

body.nav-active .nav__list-item:nth-child(2) {
    transition-delay: 0.7s;
    color: white;
    margin-bottom: 65px;
    cursor: pointer;
}

body.nav-active .nav__list-item:nth-child(3) {
    transition-delay: 0.8s;
    color: white;
    margin-bottom: 65px;
    cursor: pointer;
}

body.nav-active .nav__list-item:nth-child(4) {
    transition-delay: 0.9s;
    color: white;
    cursor: pointer;
}

body.nav-active .nav__list-item:nth-child(5) {
    transition-delay: 0.9s;
    color: white;
    cursor: pointer;
    position: absolute;
    right: -1021px;
    top: 255px;
}


body.nav-active .nav__list-item:nth-child(6):before {
    content: none;
}

.nav__list-item p{
    margin-bottom: 10px;
}
body.nav-active .nav__list-item:nth-child(6) {
    font-size: 16px;
    color: #bababa;
    text-align: left;
    position: absolute;
    right: -1113px;
    bottom: 0px;
    transition: opacity 3s ease, transform .5s ease, color .5s ease, -webkit-transform 1s ease;

}


@media (min-width: 350px) and (max-width: 640px) {
    
    .nav{
        max-width: 640px;
        width: 100%;
    }

    .nav:before,
    .nav:after {
        content: "";
        position: fixed;
        max-width: 640px;
        width: 100%;
       
    }
    
    .nav__list {
        margin-left: 0;
    }
    .nav__content{
        left: 10%;
        top: 53%;
    }
     .menu{
       width: 0px;
         
    }
    
    .nav__list{
        width: 100%;
    }
    .nav__list-item img{
        width: 100%;
    }
    
    .nav__list-item:before{
        background: #1d1d1d !important;
    }
    
    body.nav-active .nav__list-item:nth-child(1){
        width: 220px;
        margin-bottom: 40px;
        height: 48px;
    }
     body.nav-active .nav__list-item:nth-child(2){
          width: 220px;
        margin-bottom: 40px;
    }
     body.nav-active .nav__list-item:nth-child(3){
          width: 220px;
        margin-bottom: 40px;
    }
     body.nav-active .nav__list-item:nth-child(4){
          width: 220px;
        margin-bottom: 40px;
    }
    
    .nav__list-item:before{
        left: 18px;
    }
    
    body.nav-active .nav__list-item:nth-child(5){
        right: 0px;
        position: relative;
        left: 0px;
        top: 22px;
    }
    .nav__list-item{
        display: block;
    }
}