.portfolio {
    position: absolute;
    left: 0px;
    top: 0px;
    width: 100%;
    height: 100%;
    padding: 1em;
    font-weight: 100;
    color: white;

    overflow: hidden;

    display: flex;
}

.media-scroller {
    --spacer: 0.75em;

    display: grid;
    gap: var(--spacer);
    gap: 1em;
    grid-auto-flow: column;
    padding: 0 var(--spacer) var(--spacer) 0;

    overflow: hidden;
    overflow-x: scroll;
}

.media-element {
    display: block;
    width: 22vw;
    height: 100%;
    gap: var(--spacer);
    padding: var(--spacer);
    background: rgba(0, 0, 0, 0.25);
    border-radius: 10px;
    overflow: hidden;
    transition: all 0.25s linear;
    cursor: pointer;
}
.media-element p::first-line {
    font-weight: 600;
}
.media-element > img {
    width: 100%;
    height: 50%;
    object-fit: cover;
}
.media-element:hover {
    background-color: var(--clr-sub-75);
}

@media screen and (orientation: portrait) {
    .media-element {
        width: 40vw;
    }
}

:root {
    /* --portfolio-gold: rgba(220, 172, 88, 1); */
    --portfolio-gold: rgba(194, 178, 128, 1);

    --portfolio-white: rgba(255, 255, 255, 1);
    --portfolio-white-75: rgba(255, 255, 255, 0.75);
    --portfolio-white-50: rgba(255, 255, 255, 0.5);
    --portfolio-white-25: rgba(255, 255, 255, 0.25);
    --portfolio-white-10: rgba(255, 255, 255, 0.1);
}
.portfolio_details {
    position: absolute;
    left: 0px;
    top: 0px;
    width: 100%;
    height: 100%;
    background-color: var(--clr-main-100);
    color: white;
    padding: 1em;
    opacity: 1;
    transition: all 0.25s linear;
}

.portfolio_details .grid {
    position: absolute;
    left: 5%;
    bottom: 0px;

    width: 90%;

    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(3, minmax(100px, max-content));
}
.portfolio_details .grid div {
    border-radius: 20px;
}
.portfolio_details .grid .text {
    position: relative;

    grid-column-start: 1;
    grid-column-end: 3;
    grid-row-start: 1;
    grid-row-end: 3;
    align-items: top;
    padding-right: 3em;
}
.portfolio_details .grid .skills {
    position: relative;

    grid-column-start: 3;
    grid-column-end: 4;
    background-color: var(--portfolio-gold);
    padding: 2em;
}
.portfolio_details .grid .screens {
    position: relative;

    grid-column-start: 4;
    grid-column-end: 5;
    grid-row-start: 2;
    grid-row-end: 3;
    color: var(--clr-main-100);
    background-color: var(--portfolio-white);
    overflow: hidden;

    white-space: nowrap;
    display: block;
}
.portfolio_details .grid .techniques {
    position: relative;

    grid-column-start: 2;
    grid-column-end: 4;
    grid-row-start: 3;
    grid-row-end: 3;
    border-bottom-left-radius: 0px;
    border-bottom-right-radius: 0px;
    background-color: var(--clr-sub-100);

    padding: 2em;
}

.portfolio_details .grid .text h1,
.portfolio_details .grid .techniques h2,
.portfolio_details .grid .skills h2 {
    display: block;
    line-height: 1em;
    margin-bottom: 1em;
    text-transform: uppercase;
}
.portfolio_details .grid .text h1 span,
.portfolio_details .grid .techniques h2 span,
.portfolio_details .grid .skills h2 span {
    position: relative;
    left: 10%;
    display: block;
    font-size: 0.5em;
    opacity: 0.5;
}
.portfolio_details .grid .text p {
    color: var(--portfolio-white-75);
    line-height: 2em;
}

.portfolio_details .grid .skills .items div,
.portfolio_details .grid .techniques .items div {
    border: 1px solid white;
    border-radius: 5px;
    font-size: 0.75em;
    padding: 0px;
    padding-left: 0.5em;
    padding-right: 0.5em;
    margin-right: 5px;
    margin-bottom: 5px;
    display: inline-block;
}

.portfolio_details .grid .screens img {
    position: relative;
    left: 0px;
    top: 0px;
    width: 100%;
    margin-top: 12.5%;
    height: 75%;
    animation: switchslides 20s infinite;
}

/* portfolio item navivation */
.portfolio_details .nav {
    position: absolute;
    top: 0px;
    left: calc(50% - 100px);
    width: 200px;
    padding: 1em;
    display: flex;
    justify-content: center;
    flex-direction: row;
    gap: 3em;

    border-bottom-left-radius: 20px;
    border-bottom-right-radius: 20px;

    background-color: #222222;
}
.portfolio_details .nav a {
    color: white;
    text-decoration: none;
    font-size: 20px;

    transition: color 0.25s linear;
}
.portfolio_details .nav a:hover {
    color: var(--portfolio-gold);
}

@media screen and (orientation: portrait) {
    .portfolio_details .grid {
        position: absolute;
        left: 0px;
        bottom: 0px;

        width: 100%;
        height: 100%;
        padding: 2em;

        display: block;
        overflow-y: scroll;
    }
    .portfolio_details .grid div {
        margin-bottom: 1em;
        border-radius: 20px;
    }
    .portfolio_details .grid .screens {
        height: 25vh;
    }
    .portfolio_details .grid .screens img {
        width: 100%;
        height: 90%;
        margin-top: 2.5%;
        object-fit: contain;
    }
    .portfolio_details .grid .text {
        margin-top: 4em;
    }
    .portfolio_details .grid .techniques {
        border-radius: 20px;
    }
    .portfolio_details .nav a {
        font-size: 4vw;
    }
}

@keyframes switchslides {
    0% {
        left: 0%;
    }
    20% {
        left: 0%;
    }
    25% {
        left: -100%;
    }
    45% {
        left: -100%;
    }
    50% {
        left: -200%;
    }
    70% {
        left: -200%;
    }
    75% {
        left: -300%;
    }
    95% {
        left: -300%;
    }
}