.nav-filter {
    position: relative;
}
.nav-filter__item {
    position: relative;
    z-index: 2;
}
.nav-filter__link {
    position: relative;
    display: inline-block;
    font-family: 'Oswald';
    color: #000000;
    text-transform: uppercase;
    font-weight: 500;
}
.filter-mobile__bttn {
    -webkit-box-flex: 0;
        -ms-flex: 0 1 100%;
            flex: 0 1 100%;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: justify;
        -ms-flex-pack: justify;
            justify-content: space-between;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    position: relative;
    z-index: 2;
    color: #000;
    font-family: 'Oswald', sans-serif;
    font-weight: 500;
    text-transform: uppercase;
}
.filter-mobile__bttn i {
    color: #000;
}
@media only screen 
and (min-width : 961px) {
    .nav-filters {
        margin-top: -10rem;
    }
    .nav-filter::before {
        content: "";
        position: absolute;
        right: 0;
        top: 0;
        width: 200vw;
        height: 100%;
        background-color: #FEF4CC;
        display: inline-block;
        -webkit-transform: skew(-10deg);
            -ms-transform: skew(-10deg);
                transform: skew(-10deg);
        z-index: 1;
    }
    .nav-filter {
        height: 10rem;
        display: -webkit-inline-box;
        display: -ms-inline-flexbox;
        display: inline-flex;
        -webkit-box-align: center;
            -ms-flex-align: center;
                align-items: center;
        padding-left: 5.1rem;
        padding-right: 7.2rem;
    }
    .nav-filter__item:not(:last-child) {
        margin-right: 5.8rem;
    }
    .nav-filter__link:hover::before,
    .nav-filter__link.active::before {
        content: "";
        width: 100%;
        height: .2rem;
        background-color: #165D65;
        display: inline-block;
        position: absolute;
        left: 0;
    }
    .nav-filter__link {
        font-size: 1.5rem;
        line-height: 1em;
        letter-spacing: 0.0386em;
    }
    .nav-filter__link::before {
        bottom: -.4em;
    }
    .filter-mobile {
        display: none;
    }
}   
@media only screen 
and (max-width : 961px) {
    .nav-filters {
        position: relative;
        z-index: 3;
        margin-top: -10rem;
    }
    .filter-mobile {
        width: 100%;
        position: relative;
        z-index: 2;
        height: 10rem;
        display: -webkit-inline-box;
        display: -ms-inline-flexbox;
        display: inline-flex;
        -webkit-box-align: center;
            -ms-flex-align: center;
                align-items: center;
        -webkit-box-pack: start;
            -ms-flex-pack: start;
                justify-content: flex-start;
        padding-right: 4.5rem;
    }
    .filter-mobile::before {
        content: "";
        position: absolute;
        right: 1rem;
        top: 0;
        width: 200vw;
        height: 100%;
        background-color: #FEF4CC;
        display: inline-block;
        -webkit-transform: skew(-16deg);
            -ms-transform: skew(-16deg);
                transform: skew(-16deg);
        z-index: 1;
    }
    .filter-mobile__text {
        font-size: 1.8rem;
        line-height: 2.88em;
        letter-spacing: .038em;
    }
    .filter-mobile__bttn i {
        font-size: 1.4rem;
    }
    .nav-filter {
        opacity: 0;
        visibility: hidden;
        -webkit-transform: translateY(-2rem);
            -ms-transform: translateY(-2rem);
                transform: translateY(-2rem);
        position: absolute;
        top: 11.5rem;
        left: 8rem;
        background-color: #000;
        width: 25.6rem;
        height: auto;
        z-index: 2;
        padding: 5rem 3rem;
        -webkit-transition: visibility .7s, -webkit-transform .7s;
        transition: visibility .7s, -webkit-transform .7s;
        -o-transition: transform .7s, visibility .7s;
        transition: transform .7s, visibility .7s, -webkit-transform .7s;
        transition: transform .7s, visibility .7s;
    }
    .active .filter-mobile__bttn i {
        width: 1.4rem;
        height: .2rem;
        background-color: #000;
        display: inline-block;
    }
    .active .filter-mobile__bttn i::before {
        content: none;
    }
    .active .nav-filter {
        opacity: 1;
        visibility: visible;
        -webkit-transform: translateY(0);
            -ms-transform: translateY(0);
                transform: translateY(0);
    }
    .nav-filter__item:not(:last-child) {
        margin-bottom: 2.8rem;
    }
    .nav-filter__link {
        color: #fff;
        font-size: 1.6rem;
        line-height: 1em;
        letter-spacing: 0.125em;
    }
}