/* Project Detail Page
--------------------------------------------- */

.project-detail-page {
    background: var(--black);
}


/* Hero */

.case-study-hero {
    position: relative;
    display: flex;
    align-items: end;
    min-height: 100svh;
    overflow: hidden;
    padding:
        calc(var(--header-height) + 4rem)
        var(--page-gutter)
        clamp(7rem, 13vh, 10rem);

    background: #111;
    isolation: isolate;
}

.case-study-hero::before {
    position: absolute;
    z-index: -1;
    inset: 0;
    content: "";

    background:
        linear-gradient(
            to bottom,
            rgba(0, 0, 0, 0.25),
            rgba(0, 0, 0, 0.05) 35%,
            rgba(0, 0, 0, 0.88)
        ),
        linear-gradient(
            to right,
            rgba(0, 0, 0, 0.65),
            transparent 65%
        );
}

.case-study-hero-video {
    position: absolute;
    z-index: -2;
    inset: 0;

    width: 100%;
    height: 100%;

    object-fit: cover;
}

.case-study-hero-content {
    width: min(74rem, 100%);
}

.case-study-hero-content .section-label {
    margin-bottom: 1.5rem;
}

.case-study-hero h1 {
    margin: 0;

    font-family: var(--display);
    font-size: clamp(5rem, 12vw, 12rem);
    font-weight: 500;
    letter-spacing: -0.055em;
    line-height: 0.78;
    text-transform: uppercase;
}

.case-study-hero h1 span {
    color: transparent;
    -webkit-text-stroke: 1px rgba(245, 243, 237, 0.8);
}

.case-study-hero-summary {
    max-width: 39rem;
    margin: 2rem 0 0;

    color: rgba(245, 243, 237, 0.78);
    font-size: clamp(0.95rem, 1.4vw, 1.15rem);
    line-height: 1.7;
}

.case-study-scroll {
    position: absolute;
    right: var(--page-gutter);
    bottom: clamp(2rem, 5vh, 4rem);

    display: flex;
    align-items: center;
    gap: 2rem;

    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.case-study-scroll span:last-child {
    color: var(--accent);
    font-size: 1.2rem;
    transition: transform 180ms ease;
}

.case-study-scroll:hover span:last-child {
    transform: translateY(4px);
}


/* Main content */

.case-study-content {
    max-width: 100rem;
    margin: 0 auto;
    padding:
        clamp(5rem, 10vw, 10rem)
        var(--page-gutter);
}

.case-study-introduction {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(18rem, 0.85fr);
    gap: clamp(3rem, 8vw, 9rem);
    align-items: start;
}

.case-study-introduction h2 {
    max-width: 52rem;
    margin: 0;

    font-family: var(--display);
    font-size: clamp(3.2rem, 7vw, 7rem);
    font-weight: 500;
    letter-spacing: -0.045em;
    line-height: 0.92;
    text-transform: uppercase;
}

.case-study-lead {
    padding-top: 2.5rem;
}

.case-study-lead p {
    margin: 0 0 1.4rem;

    color: var(--muted);
    font-size: clamp(1rem, 1.4vw, 1.15rem);
    line-height: 1.8;
}


/* Project facts */

.case-study-facts {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));

    margin: clamp(4rem, 8vw, 8rem) 0;
    padding: 0;

    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.case-study-facts div {
    min-height: 9rem;
    padding: 1.6rem;

    border-right: 1px solid var(--line);
}

.case-study-facts div:last-child {
    border-right: 0;
}

.case-study-facts dt {
    margin-bottom: 1rem;

    color: var(--muted);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.case-study-facts dd {
    margin: 0;

    font-size: 0.9rem;
    font-weight: 500;
    line-height: 1.5;
}


/* Case-study sections */

.case-study-section {
    display: grid;
    grid-template-columns: minmax(12rem, 0.35fr) minmax(0, 0.65fr);
    gap: clamp(3rem, 8vw, 9rem);

    padding: clamp(4rem, 8vw, 8rem) 0;
    border-top: 1px solid var(--line);
}

.case-study-section-heading span {
    display: block;
    margin-bottom: 1.2rem;

    color: var(--accent);
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.14em;
}

.case-study-section-heading h2 {
    margin: 0;

    font-family: var(--display);
    font-size: clamp(2.3rem, 4vw, 4.5rem);
    font-weight: 500;
    letter-spacing: -0.035em;
    line-height: 0.95;
    text-transform: uppercase;
}

.case-study-copy {
    max-width: 52rem;
}

.case-study-copy > p {
    margin: 0 0 1.5rem;

    color: var(--muted);
    font-size: 1rem;
    line-height: 1.8;
}

.case-study-copy .case-study-large-text {
    color: var(--white);
    font-size: clamp(1.45rem, 2.5vw, 2.3rem);
    line-height: 1.4;
}


/* Core loop */

.case-study-loop {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1px;

    background: var(--line);
    border: 1px solid var(--line);
}

.case-study-loop article {
    min-height: 16rem;
    padding: 1.6rem;

    background: var(--charcoal);
}

.case-study-loop article > span,
.case-study-system-grid article > span {
    color: var(--accent);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.12em;
}

.case-study-loop h3,
.case-study-system-grid h3 {
    margin: 4rem 0 1rem;

    font-family: var(--display);
    font-size: 1.8rem;
    font-weight: 500;
    text-transform: uppercase;
}

.case-study-loop p {
    margin: 0;

    color: var(--muted);
    font-size: 0.85rem;
    line-height: 1.6;
}


/* Systems */

.case-study-system-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1px;

    margin-top: 3rem;
    background: var(--line);
    border: 1px solid var(--line);
}

.case-study-system-grid article {
    min-height: 11rem;
    padding: 1.5rem;

    background: var(--charcoal);
}

.case-study-system-grid h3 {
    margin-top: 3rem;
    font-size: 1.45rem;
}


/* Responsibilities */

.responsibility-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;

    margin-top: 2.5rem;
}

.responsibility-list span {
    padding: 0.8rem 1rem;

    border: 1px solid var(--line);
    color: rgba(245, 243, 237, 0.78);

    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}


/* Project navigation */

.case-study-navigation {
    display: grid;
    grid-template-columns: 1fr 1fr;

    margin-top: clamp(3rem, 8vw, 8rem);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.case-study-navigation a {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;

    min-height: 11rem;
    padding: 2rem;
    justify-content: center;

    transition:
        color 180ms ease,
        background 180ms ease;
}

.case-study-navigation a:first-child {
    border-right: 1px solid var(--line);
}

.case-study-navigation a:last-child {
    text-align: right;
}

.case-study-navigation a:hover {
    color: var(--black);
    background: var(--accent);
}

.case-study-navigation span {
    color: var(--muted);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.case-study-navigation a:hover span {
    color: rgba(8, 8, 8, 0.65);
}

.case-study-navigation strong {
    font-family: var(--display);
    font-size: clamp(2rem, 3vw, 3.5rem);
    font-weight: 500;
    text-transform: uppercase;
}


/* Responsive */

@media (max-width: 850px) {
    .case-study-introduction,
    .case-study-section {
        grid-template-columns: 1fr;
    }

    .case-study-facts {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .case-study-facts div {
        border-bottom: 1px solid var(--line);
    }

    .case-study-facts div:nth-child(even) {
        border-right: 0;
    }

    .case-study-scroll {
        display: none;
    }

    .case-study-loop,
    .case-study-system-grid {
        grid-template-columns: 1fr;
    }

    .case-study-loop article {
        min-height: 13rem;
    }
}

@media (max-width: 560px) {
    .case-study-hero {
        padding-bottom: 5rem;
    }

    .case-study-hero h1 {
        font-size: clamp(4.4rem, 22vw, 7rem);
    }

    .case-study-facts {
        grid-template-columns: 1fr;
    }

    .case-study-facts div {
        border-right: 0;
    }

    .case-study-navigation {
        grid-template-columns: 1fr;
    }

    .case-study-navigation a:first-child {
        border-right: 0;
        border-bottom: 1px solid var(--line);
    }

    .case-study-navigation a:last-child {
        text-align: left;
    }
}