:root {
    --background-color: #5a5a5a;
    --border-color: rgb(255, 255, 255, 0.1);
    --highlight-color: #ffaf24;
    --yt-color: rgb(229, 57, 53);
}

body {
    background-color: var(--background-color);
    display: flex;
    flex-direction: column;
    height: 100vh;
    margin: 0px;
    overflow: hidden;
}

* {
    box-sizing: border-box;
}

h1,
h2,
h3,
a,
p,
span {
    font-family: "Rubik", sans-serif;
    font-weight: 400;
    color: white;
    margin: 0px;
}

a {
    text-decoration: none;
    transition: 0.3s;
}

a:hover {
    color: var(--highlight-color);
}

nav {
    display: flex;
    width: 100%;
    border-bottom: 1px solid var(--border-color);
}

nav .nav-section {
    padding: 3rem 2rem;
    display: flex;
    gap: 1rem;
    border-left: 1px solid var(--border-color);
    align-items: center;
    justify-content: center;
}

#nav-mobile-section {
    display: flex;
    flex-basis: calc(100% * (2 / 3));
    z-index: 2;
}

#nav-toggle-button {
    align-items: center;
    background-color: transparent;
    border: none;
    border-left: 1px solid var(--border-color);
    color: white;
    cursor: pointer;
    display: none;
    gap: 0.8rem;
    height: 100%;
    justify-content: center;
    outline: none;
    padding: 0rem 3rem;
    position: relative;
    z-index: 3;
}

#nav-toggle-button:hover,
#nav-toggle-button:hover>span {
    color: var(--highlight-color);
}

#nav-toggle-button>span,
#nav-toggle-button>i {
    display: inline-block;
    height: 1rem;
    line-height: 1rem;
}

#nav-social-section,
#nav-contact-section {
    flex-grow: 1;
}

#nav-logo-section {
    flex-basis: calc(100% / 3);
    justify-content: flex-start;
}

#nav-logo-section>a>i {
    font-size: 2.5rem;
}

/* #nav-link-section {
    flex-basis: 50%;
    gap: 6rem;
} */

#nav-social-section {
    gap: 3rem;
    font-size: 32px;
}

main {
    flex-grow: 1;
    position: relative;
    overflow: hidden;
}

main>article {
    height: 100%;
    width: 100%;
    display: grid;
    grid-template-columns: 2fr 1fr;
    grid-template-rows: 2fr 1fr;
    position: absolute;
    left: 0px;
    top: 0px;
    transition: transform 400ms ease;
}

main>article[data-status="inactive"] {
    transform: translateX(-100%);
    transition: none;
}

main>article[data-status="active"] {
    transform: translateX(0%);
}

main>article[data-status="before"] {
    transform: translateX(-100%);
}

main>article[data-status="after"] {
    transform: translateX(100%);
}

main>article[data-status="becoming-active-from-before"] {
    transform: translateX(-100%);
    transition: none;
}

main>article[data-status="becoming-active-from-after"] {
    transform: translateX(100%);
    transition: none;
}

main>article>.article-section {
    height: 100%;
    display: flex;
}

main>article>.article-description-section,
main>article>.article-nav-section {
    border-left: 1px solid var(--border-color);
}

main>article>.article-title-section,
main>article>.article-nav-section {
    border-top: 1px solid var(--border-color);
}

main>article:first-child>.article-image-section {
    background-image: url("../img/love-to-learn.jpg");
}

main>article:nth-child(2)>.article-image-section {
    background-image: url("../img/archive.jpg");
}

main>article:nth-child(3)>.article-image-section {
    background-image: url("../img/cameras.jpg");
}

main>article:nth-child(4)>.article-image-section {
    background-image: url("../img/privacy.jpg");
}

main>article>.article-image-section {
    background-position: center;
    background-size: cover;
}

main>article>.article-description-section {
    flex-direction: column;
    justify-content: flex-end;
    padding: 4rem;
}

main>article>.article-description-section>p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 1.25em;
}

main>article>.article-description-section>p>a:hover {
    text-decoration: underline;
}

main>article>.article-title-section {
    align-items: center;
    justify-content: space-between;
    padding: 2rem 4rem;
}

main>article>.article-title-section * {
    color: white;
}

main>article>.article-title-section>h2 {
    flex-basis: 50%;
    font-family: "Montserrat", sans-serif;
    font-size: 3.5rem;
    line-height: 3rem;
    margin: 0px;
    text-transform: uppercase;
}

main>article>.article-title-section>i {
    color: rgba(255, 255, 255, 0.75);
    font-size: 4rem;
}

main>article>.article-nav-section>.article-nav-button {
    background-color: transparent;
    flex-grow: 1;
    border: none;
    outline: none;
    color: rgba(255, 255, 255, 0.75);
    font-size: 3rem;
    cursor: pointer;
}

main>article>.article-nav-section>.article-nav-button:hover {
    background-color: rgba(255, 255, 255, 0.02);
}

main>article>.article-nav-section>.article-nav-button:nth-child(2) {
    border-left: 1px solid var(--border-color);
}

@media(max-width: 1200px) {
    #nav-mobile-section {
        flex-basis: calc(100% * 0.75);
    }

    #nav-logo-section {
        flex-basis: calc(100% * 0.25);
    }

    #nav-link-section {
        flex-basis: calc(100% / 3);
        gap: 3rem;
    }

    main {
        overflow-y: auto;
    }

    main>article {
        grid-template-columns: none;
        grid-template-rows: 1.5fr repeat(3, 0.75fr) 0.25fr;
        height: max(900px, 100%);
    }

    main>article>.article-title-section>h2 {
        font-size: 3rem;
        line-height: 2.6rem;
    }

    main>article>.article-title-section>i {
        font-size: 3rem;
    }

    main>article>.article-description-section,
    main>article>.article-nav-section {
        border-left: none;
    }

    main>article>.article-image-section {
        order: 1;
    }

    main>article>.article-title-section {
        border-bottom: 1px solid var(--border-color);
        order: 2;
    }

    main>article>.article-description-section {
        justify-content: center;
        order: 3;
    }

    main>article>.article-nav-section {
        border-bottom: 1px solid var(--border-color);
        order: 4;
    }
}

@media(max-width: 800px) {
    nav {
        justify-content: space-between;
    }

    nav[data-toggled="true"]>#nav-mobile-section {
        transform: translateY(0%);
    }

    nav[data-toggled="true"]>#nav-toggle-button {
        border-left: none;
    }

    nav[data-transitionable="true"]>#nav-mobile-section {
        transition: transform 400ms ease;
    }

    nav .nav-section {
        border-left: none;
        padding: 1.5rem 1rem;
    }

    #nav-logo-section>a>i {
        font-size: 1.5rem;
        margin-left: 1rem;
    }

    #nav-mobile-section {
        background-color: var(--background-color);
        flex-direction: column;
        height: 100vh;
        width: 100vw;
        position: fixed;
        transform: translateY(-100%);
    }

    #nav-toggle-button {
        display: flex;
    }

    #nav-link-section {
        flex-basis: 60%;
        flex-direction: column;
        gap: 4rem;
    }

    #nav-link-section>a {
        font-size: 3rem;
    }

    #nav-social-section>a {
        font-size: 2rem;
    }

    #nav-contact-section {
        padding-bottom: 4rem;
    }

    main>article {
        grid-template-rows: 1fr repeat(4, 0.5fr);
        height: max(700px, 100%);
    }

    main>article>.article-title-section {
        padding: 2rem;
    }

    main>article>.article-title-section>h2 {
        flex-basis: 70%;
        font-size: 1.75em;
        line-height: 1.5rem;
    }

    main>article>.article-title-section>i {
        font-size: 2rem;
    }

    main>article>.article-description-section {
        padding: 2rem;
    }

    main>article>.article-description-section>p {
        font-size: 1rem;
    }
}

/* -- YT link / Source link styles -- */

main>article>.article-description-section>p>.source-link {
    color: var(--highlight-color);
    display: inline;
}

main>article .yt-link,
main>article .yt-link>i {
    color: var(--yt-color);
    display: inline;
}



#nav-link-section {
    color: #fff;
}