*{
    margin: 0;
    padding:0;
    box-sizing: border-box;
}
:root{
    --primary: #f7f7f7;
    --secondary: #181818;
}
html{
    font-size: calc(100vw / 1920 * 10);
}
body{
    background: var(--primary);
    color: var(--secondary);
}
h1{
    font-size: 13rem;
    text-transform: uppercase;

}
h2{
    font-size: 9rem;
    text-transform: uppercase;
}
h3{
    font-size: 4.8rem;
    text-transform: uppercase;

}
h4{
    font-size: 3.2rem;
    text-transform: uppercase;
}
p, li{
    font-size: 2.4rem;
    text-decoration: none;
    list-style: none;
}
a{
    text-decoration: none;
}
span{
    font-size: 1.6rem;
}
/*=== navbar ===*/
.nav{
    position: absolute;
    width: 100%;
    left: 0;
    top: 0;
    padding: 3.2rem 6.4rem;
    overflow: hidden;
}
.nav-container{
    display: flex;
    justify-content: space-between;
    width: 100%;
}
.nav-select{
    display: flex;
    align-items: center;
    gap: 1.5rem;
}
.nav-select-toggle{
    width: 6rem;
    padding: 0.4rem;
    border: 1px solid var(--secondary);
    border-radius: 200rem;
    cursor: pointer;
}
.nav-toggle{
    background-color: var(--secondary);
    width: 2rem;
    height: 2rem;
    border-radius: 200rem;
}
/*=== projects ===*/
.work{
    position: relative;
    width: 100%;
    margin-top: 15rem;
    overflow: hidden;
}
.wrok-container{
    padding: 6.4rem;
}
.work-title{
    display: inline-flex;
    width: 100%;
    gap: 3.2rem;
    padding-bottom: 4.8rem;
    border-bottom: 1px solid var(--secondary);
}
.work-title h1{
    font-size: 8rem;
}
.work-selector{
    position: relative;
    padding-top: 12rem;
}
/*=== grid ===*/
.work-grid-item{
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-column-gap: 1.5rem;
    grid-row-gap: 1.5rem;
    grid-template-areas: 'grid-video grid-info' 'grid-title .';
    margin-bottom: 12.8rem;
}
.--item-left{
    grid-template-areas: 'grid-info grid-video ' '. grid-title';
}
.work-grid-item-video{
    grid-area: grid-video;
    width: 96rem;
    height: 64rem;
    background-color: #181818;
}
.work-grid-item-info{
    grid-area: grid-info;
}
.work-grid-item-title{
    grid-area: grid-title;
}
.grid-btn{
    margin-top: 2.5rem;
    font-size: 2rem;
}
.grid-btn-1{
    margin-right: 10px;
    padding: 10px;
    background-color: #181818;
    color: white;
    border: 1px solid black;
    transition: all 0.3s ease-in;
}
.grid-btn-1:hover{
    background-color: gray;
    color: black;
    border: 1px solid gray;
}
.grid-btn-2{
    padding: 10px;
    color: black;
    border: 1px solid black;
    transition: all 0.3s ease-in;
}
.grid-btn-2:hover{
    background-color: gray;
    color: white;
    border: 1px solid gray;
}
/*=== index ===*/
.work-index-item{
    position: relative;
    height: 100%;
    margin-bottom: 3.2rem;
    overflow: hidden;
    cursor: pointer;
}
.work-index-item:last-child{
    margin-bottom: 0;
}
.work-index-item-title{
    display: flex;
    justify-content: space-between;
    width: 100%;
}
.work-index-item-flex{
    display: inline-flex;
    align-items: center;
    gap: 3.2rem;
}
.work-index-item-media{
    display: flex;
    position: absolute;
    left: 0;
    top: 0;
    gap: 1.5rem;
}
.work-index-item-video{
    width: 32rem;
    height: 13rem;
    object-fit: cover;
}

/*=== grid responsive ===*/
@media screen and (min-width: 768px){
    .--item-left .work-grid-item-info{
        justify-self: right;
    }
}
/*=== index responsive ===*/
@media screen and (max-width: 768px){
    html{
        font-size: calc(100vw / 768 * 10);
    }
    h1{
        font-size: 7rem;
    }
    h2{
        font-size: 4.8rem;
    }
    h3{
        font-size: 3.2rem;
    }
    h4{
        font-size: 2.4rem;
    }
    p,li{
        font-size: 2.4rem;
    }
    span{
        font-size: 1.6rem;
    }
    .work-grid-item, .work-grid-item.--item-left{
        grid-template-columns: 1fr;
        grid-template-areas: 'grid-video' 'grid-title' 'grid-info';
    }
    .work-grid-item-video{
        width: 100%;
        height: 64rem;
    }
    .work-title h1{
        font-size: 5rem;
    }
    .work-index-item-flex{
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
    }
}