body, div, dl, dt, dd, ul, ol, li, h1, h2, h3, h4, h5, h6, pre,
form, fieldset, input, p, blockquote, table, th, td, embed, object {
    padding: 0;
    margin: 0;
}
table {
    border-collapse: collapse;
    border-spacing: 0;
}
fieldset, img, abbr {
    border: 0;
}
address, caption, cite, code, dfn, em,
h1, h2, h3, h4, h5, h6, strong, th, var {
    font-weight: normal;
    font-style: normal;
}
ul {
    list-style: none;
}
caption, th {
    text-align: left;
}
h1, h2, h3, h4, h5, h6 {
    font-size: 1.0em;
}
q:before, q:after {
    content: '';
}
a, ins {
    text-decoration: none;
}



::-webkit-scrollbar {
    display: none;
}



.header_desktop {
    display: flex;
    justify-content: space-around;
    position: fixed;
    z-index: 20;
    top: 0;
    transition: 1s ease-in;
    z-index: 3;
}



.header_desktop a, .header_desktop li  {
    font-family: Montserrat;
    font-size: 18px;
    font-weight: 300;
    color: #ffffff;
    text-align: center;
    list-style-type: none;
    transition: 1s ease-in;
}

.header_desktop a.black, .header_desktop .black  {
    font-family: Montserrat;
    font-size: 18px;
    font-weight: 300;
    color: #000;
    text-align: center;
    list-style-type: none;
    transition: 1s ease-in;
}

.header_desktop .contacts li:nth-child(2)  {
    text-decoration: underline;
}

.header_desktop span {
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    
}

.header_desktop .navigation_pannel {
   position: absolute;
   width: 550px;
   top: 50px;
   left: 35px;
}

.header_desktop .navigation_pannel span li , .header_desktop .contacts {
    border: 1px solid #ffffff;
    padding: 10px 30px 10px 30px;
    border-radius: 10px;
 }


 .header_desktop .navigation_pannel span li.black , .header_desktop .contacts.black {
    border: 1px solid #000000;
    padding: 10px 30px 10px 30px;
    border-radius: 10px;
 }


.header_desktop .logo h1 a {
    position: absolute;
    left: calc((100vw - 534px) / 2);
    font-weight: 300;
    font-size: 100px;
    text-align: center;
    letter-spacing: 12px;
    transition: 1s ease-in;
}

.header_desktop .logo_active h1 a {
    position: absolute;
    left: calc((100vw - 534px) / 2);
    font-weight: 300;
    font-size: 100px;
    text-align: center;
    letter-spacing: 12px;
    color: #000;
}

.header_desktop .logo  {
    width: 600px;
    height: fit-content;
    z-index: 100;
}

.header_desktop .logo .black a  {
    z-index: 200;
    opacity: 0;
    transition: 1s ease-in;
    color: #000;
}

.header_desktop .logo .white_active a {
    z-index: 200;
    opacity: 0;
    transition: 1s ease-in;
    
}

.header_desktop .logo .black_active a, .header_desktop span .black a {
    z-index: 200;
    opacity: 1;
    transition: 1s ease-in;
    color: #000;
}

.header_desktop .logo_active{
    opacity: 1;
    transition: 1s ease-in;
}


.header_desktop .logo_active  {
    width: 600px;
    z-index: 100;
}


.header_desktop .contacts {
    position: absolute;
    width: 220px;
    top: 35px;
    left: calc(100vw - (250px + 35px));
}


@media screen and (min-width: 1200px) and (max-width: 1902px) {
   

    .header_desktop .navigation_pannel {
        position: absolute;
        width: 570px;
        top: 50px;
        left: 35px;
    }


    .header_desktop .contacts {
        position: absolute;
        width: 220px;
        top: 35px;
        left: calc(100vw - 322px);
    }

    .header_desktop .logo_active {
        opacity: 0;
    }


}