.main_header {
    position: sticky;
}
header {
    overflow: visible;
    display: unset;
}
div.main_header.scrolled .rk_logo img {
    filter: invert(1) brightness(100);
}
.main_header nav ul li a {
    color: #616161;
}
div.main_header.scrolled nav ul li a {
    color: #ffffff;
    transition: color 0.3s ease;
}

header .main_header nav ul li a{
    color:#696A6A;
}
/* project  css  */
section {
    padding: 0px;
    display: block;
    width: 100%;
    position: relative;
}

.main-banner_setup{
    background:url(../images/project-bulding.png) no-repeat;
    background-size: 30%;
    background-position: bottom right;
    background-color: rgba(230, 239, 244, 1);
}


.list_of_client {
   display: flex;
    flex-wrap: wrap;
    width: 100%;
    max-width: 960px;
    margin-block-start: 70px;
    gap: 34px 37px;
}
.list_of_client li{
    list-style:none;
    display:block;
    width: fit-content;
}

.list_of_client li a {
    width:fit-content;
    border: 2px solid rgba(105, 106, 106, 1);
    display: block;
    padding: 14px 24px;
    color: rgba(105, 106, 106, 1);
    font-family: 'futura-pt';
    font-weight: 500;
    font-size: 16px;
    line-height: 13px;
    letter-spacing: 0px;
    text-decoration: none;
    text-transform: uppercase;
}

.list_of_client .active , .list_of_client li a:hover{
    border: 2px solid rgba(46, 163, 220, 1) !important;
    display: block;
    padding: 14px 24px;
    color: rgba(46, 163, 220, 1)!important;
}

.project-details {
    padding-block: 60px;
}

.project-details h2 {
    font-family: 'futura-pt';
    color: rgba(117, 192, 229, 1);
    font-weight: 400;
    font-size: 52px;
    line-height: 80px;
    letter-spacing: 7px;
    text-align: left;
    margin-block-end: 30px;
    text-transform: uppercase;
}

.project-details p {
    font-family: 'futura-pt';
    font-weight: 400;
    font-size: 43px;
    line-height: 52px;
    width: 100%;
    padding-block: 0px 30px;
    letter-spacing: 0px;
    color: rgba(46, 163, 220, 1);
    max-width: 981px;
}

.project-list-item {
    padding-block: 70px 0px;
    display: grid;
    grid-template-columns: repeat(2,1fr);
    column-gap: 80px;
}

.project_image , .project_image img {
    width: 100%;
    display: block;
}

.project_content {
    padding-block: 30px;
}

.project_content h2 {
    font-family: 'futura-pt';
    font-weight: 450;
    font-size: 22px;
    line-height: 21px;
    letter-spacing: 1px;
    color: rgba(97, 97, 97, 1);
}

.project_content p {
    font-family: 'Helvetica Neue';
    font-weight: 400;
    font-size: 14px;
    line-height: 38px;
    letter-spacing: 2px;
    color: rgba(104, 104, 104, 1);
}

@media (max-width:786px) {
    .menu_toggle span {
        &:not(.scrolled span) {
            background-color: #000 !important;
        }
    }
    
.list_of_client {
    column-gap: 28px;
}

.list_of_client li a {
    font-size: 13px;
}

.project-details h2 {
    font-size: 20px;
    line-height: 30px;
    letter-spacing: 3px;
    margin-block-end: 0px;
}

.project-details p {
    font-size: 20px;
    max-width: 100%;
    line-height: 28px;
    padding-block: 10px 30px;
}

ul.list_of_client {
    max-width: 100%;
    margin-block-start: 21px;
    gap: 20px;
}

.list_of_client li a {
    border: 1px solid rgba(105, 106, 106, 1);
}

section.main-banner_setup {
    background-size: 100%;
    background-position: bottom left;
}

.project-details {
    padding-block: 10px 30px;
}

.project-list-item {
    padding-block: 10px 0px;
    display: block;
}

section.project-list {
    padding-block-end: 0px;
}
.project_content h2 {font-size: 20px;line-height: 29px;}

.project_content p {
    font-size: 14px;
    line-height: 26px;
}

.project_content {
    padding-block: 10px 20px;
}

}