@keyframes fadeInLeft{
    0%{
        opacity: 0;
        transform: translateX(-50px);
    }
    100%{
        opacity: 1;
        transform: translateX(0);
    }
}
@keyframes fadeOutRight{
    0%{
        opacity: 1;
        transform: translateX(0);
    }
    100%{
        opacity: 0;
        transform: translateX(50px);
    }
}
@mixin navigation-bar(){
    .nav-bar{
        display: flex;
        justify-content: flex-start;
        position: relative;
        flex-flow: row wrap;
        position: relative;
        border-color: transparent;
        // overflow: hidden;
        // border-bottom: 1px solid map-get($colors, 6);

        .indicator{
            content: '';
            position: absolute;
            display: block;
            bottom: -2px;
            height: 2px;
            background-color: map-get($colors, primary);
            transition: left 0.4s ease-in-out, right 0.2s ease-in-out;
            &.transition-reverse{
                transition: left 0.2s ease-in-out, right 0.4s ease-in-out;
            }
        }

        &.nav-bar-right{
            justify-content: flex-end;
        }
        &.nav-bar-center{
            justify-content: center;
        }

        .nav-bar-item{
            // color: map-get($colors, 4);
            padding: $el-padding-3/2 $el-padding-5;
            font-size: modular-scale(-1);
            line-height: modular-scale(0);
            font-family: $font-1;
            display: inline-block;
            font-weight: 600;
            margin-bottom: 0;
            text-align: center;
            cursor: pointer;
            border: 1px solid transparent;

            @include mq($until: mobile) {
                padding: $el-padding-3/2 $el-padding-5/2;
            }

            &.active{
                color: map-get($colors, primary);
            }
        }
    }
}

.tabs{
    display: flex;
    flex-direction: column;
    @include navigation-bar();

    .tab-contents{ 
        margin-top: 30px;
        position: relative;
        .tab-content{
            backface-visibility: hidden;
            &:not(.active){
                position: absolute;
                left: 0;
                top: 0;
                pointer-events: none;
                opacity: 1;
                animation: fadeOutRight .25s ease forwards;
            } 
            
            &.active{
                animation: fadeInLeft .5s ease forwards;
            }
        }
    }
}