* {
    box-sizing: border-box;
}

:root {
    --padding-h: 5vw;
    --padding-v: 2rem;
}

body {
    font-family: sans-serif;
    margin: 0;
}

ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

a {
    color: inherit;
}

img {
    max-width: 100%;
}

.section {
    padding: var(--padding-v) var(--padding-h);
}

.portfolio .portfolio-cats {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.portfolio .portfolio-cats li {
    background-color: #ff8a04;
    color: #fff;
    padding: 0.5rem 1rem;
    cursor: pointer;
}

.portfolio .portfolio-gallery {
    position: relative;
}

.portfolio .portfolio-item {
    width: 100%;
    height: 200px;
    margin-bottom: 40px;
    padding-left: 15px;
    padding-right: 15px;
    position: absolute;
    top: 0;
    left: 0;
    transition-property: opacity, transform;
    transition-duration: 0.7s;
}

.portfolio .portfolio-item .item-inner {
    height: 100%;
    overflow: hidden;
    box-shadow: 0 0 4px 0px rgb(0 0 0 / 10%);
}

@media screen and (min-width: 48em) {
    .portfolio .portfolio-item {
        width: 50%;
    }
}

@media screen and (min-width: 62em) {
    .portfolio .portfolio-item {
        width: 33.3333%;
    }
}