/* CASE STUDY — storytelling focused, rich media, before/after showcase.
   Distinct from the Home cinematic sequence: text carries more weight,
   the scroll is calmer, reveals are one-shot rather than continuously
   scrubbed. */

.case-hero {
    position: relative;
    min-height: 100dvh;
    display: grid;
    align-content: end;
    color: var(--ink);
}

.case-hero__media {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.case-hero__media picture,
.case-hero__media img,
.case-hero__media video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.case-hero__media video { position: absolute; inset: 0; }

.case-hero__media::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(8, 8, 6, .72), rgba(8, 8, 6, .14) 46%, rgba(8, 8, 6, .26)),
        linear-gradient(180deg, rgba(8, 8, 6, .38) 0%, rgba(8, 8, 6, .16) 35%, rgba(8, 8, 6, .92) 100%);
}

.case-hero__frame {
    position: relative;
    z-index: 1;
    display: grid;
    gap: 1.4rem;
    padding:
        calc(var(--nav-h) + 2rem)
        calc(var(--page-x) + var(--safe-right))
        calc(4.5rem + var(--safe-bottom))
        calc(var(--page-x) + var(--safe-left));
}

.case-hero__back {
    justify-self: start;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: .12em;
    font-size: .8rem;
    border: 1px solid var(--line);
    border-radius: var(--radius-ui);
    padding: .7rem .9rem;
    background: rgba(8, 8, 6, .38);
    backdrop-filter: blur(12px);
}

.case-hero__meta {
    text-transform: uppercase;
    letter-spacing: .12em;
    font-size: .8rem;
    color: var(--accent);
}

.case-hero__title {
    font-size: clamp(3rem, 10vw, 9.5rem);
    line-height: 1;
    margin-top: .15em;
    margin-bottom: .1em;
    max-width: 10ch;
    text-wrap: balance;
}

.case-hero__challenge {
    max-width: 760px;
    color: var(--muted);
    font-size: clamp(1.05rem, 1.8vw, 1.4rem);
    line-height: 1.5;
    margin-top: .4rem;
    text-transform: none;
    font-weight: 500;
}

.case-hero__website {
    justify-self: start;
    margin-top: .5rem;
}

.case-summary {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(320px, .9fr);
    gap: clamp(2rem, 7vw, 6rem);
    padding:
        clamp(4rem, 10vw, 7rem)
        calc(var(--page-x) + var(--safe-right))
        clamp(4rem, 10vw, 7rem)
        calc(var(--page-x) + var(--safe-left));
    border-bottom: 1px solid var(--line);
}

.case-summary h2 {
    font-size: clamp(2rem, 5vw, 4.8rem);
    line-height: .98;
    max-width: 14ch;
    text-transform: none;
    margin-top: 1rem;
}

.case-summary dl {
    display: grid;
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
}

.case-summary dl div {
    display: grid;
    grid-template-columns: 130px 1fr;
    gap: 1rem;
    background: var(--bg);
    padding: 1rem;
}

.case-summary dt {
    color: var(--accent);
    font-size: .72rem;
    letter-spacing: .14em;
    text-transform: uppercase;
}

.case-summary dd {
    color: var(--muted);
}

/* ---------- Story beats ---------- */
.case-story {
    padding:
        clamp(3rem, 8vw, 7rem)
        calc(var(--page-x) + var(--safe-right))
        clamp(3rem, 8vw, 7rem)
        calc(var(--page-x) + var(--safe-left));
    display: grid;
    gap: clamp(4rem, 10vw, 8rem);
}

.case-story__beat {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(2rem, 5vw, 4rem);
    align-items: center;
}

.case-story__beat.is-reversed .case-story__media { order: -1; }

.case-story__index {
    display: block;
    font-size: .8rem;
    letter-spacing: .16em;
    color: var(--accent);
    margin-bottom: 1rem;
}

.case-story__text h2 {
    font-size: clamp(1.8rem, 3.4vw, 3rem);
    line-height: 1.05;
    text-transform: none;
    margin-bottom: 1.2rem;
    max-width: 14ch;
    text-wrap: balance;
}

.case-story__text p {
    color: var(--grey);
    font-size: clamp(1rem, 1.3vw, 1.2rem);
    line-height: 1.7;
    max-width: 46ch;
}

.case-story__media {
    aspect-ratio: 4/3;
    overflow: hidden;
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.case-story__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .8s var(--ease);
}

.case-story__media:hover img {
    transform: scale(1.04);
}

/* ---------- Before / after ---------- */
.case-compare {
    padding:
        clamp(3rem, 8vw, 6rem)
        calc(var(--page-x) + var(--safe-right))
        clamp(3rem, 8vw, 6rem)
        calc(var(--page-x) + var(--safe-left));
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.case-compare__label {
    text-transform: uppercase;
    letter-spacing: .16em;
    font-size: .78rem;
    color: var(--grey);
    margin-bottom: 1.6rem;
}

.case-compare__frame {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
}

.case-compare__frame figure {
    position: relative;
    background: var(--surface);
    margin: 0;
}

.case-compare__frame img {
    width: 100%;
    height: 52vh;
    object-fit: cover;
    display: block;
    filter: grayscale(.15);
}

.case-compare__frame figcaption {
    position: absolute;
    left: 1rem;
    bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: .14em;
    font-size: .75rem;
    color: var(--ink);
    background: rgba(8, 8, 6, .68);
    padding: .4rem .7rem;
    border: 1px solid var(--line);
    border-radius: var(--radius-ui);
    backdrop-filter: blur(12px);
}

/* ---------- Remaining gallery ---------- */
.case-gallery {
    display: grid;
    gap: 1px;
    background: var(--line);
    grid-template-columns: repeat(2, 1fr);
}

.case-gallery img {
    width: 100%;
    height: 60vh;
    object-fit: cover;
    display: block;
}

.case-outcomes {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(300px, .8fr);
    gap: clamp(2rem, 7vw, 6rem);
    padding:
        clamp(4rem, 10vw, 7rem)
        calc(var(--page-x) + var(--safe-right))
        clamp(4rem, 10vw, 7rem)
        calc(var(--page-x) + var(--safe-left));
    border-top: 1px solid var(--line);
}

.case-outcomes h2 {
    font-size: clamp(2rem, 5vw, 4.8rem);
    line-height: .98;
    max-width: 12ch;
    text-transform: none;
    margin-top: 1rem;
}

.case-outcomes ul {
    display: grid;
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
}

.case-outcomes li,
.case-tech {
    background: var(--surface);
    padding: 1.2rem;
    color: var(--muted);
}

.case-tech {
    grid-column: 1 / -1;
}

.case-tech p:last-child {
    margin-top: .8rem;
    color: var(--ink);
    line-height: 1.6;
}

/* ---------- Next project teaser ---------- */
.case-next {
    position: relative;
    display: grid;
    place-items: center;
    min-height: 60vh;
    overflow: hidden;
    border-top: 1px solid var(--line);
}

.case-next__media {
    position: absolute;
    inset: 0;
}

.case-next__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(.4) saturate(.9);
    transform: scale(1.05);
    transition: transform 1.2s var(--ease), filter .5s var(--ease);
}

.case-next:hover .case-next__media img {
    transform: scale(1.12);
    filter: brightness(.5) saturate(1);
}

.case-next__copy {
    position: relative;
    z-index: 1;
    display: grid;
    justify-items: center;
    gap: .6rem;
    text-align: center;
}

.case-next__copy span {
    text-transform: uppercase;
    letter-spacing: .16em;
    font-size: .8rem;
    color: var(--grey);
}

.case-next__copy strong {
    font-family: 'Archivo', Arial, sans-serif;
    font-size: clamp(2.4rem, 8vw, 6rem);
    line-height: .92;
    text-transform: uppercase;
}

@media (max-width: 900px) {
    .case-hero {
        min-height: auto;
        display: block;
        background: var(--bg);
    }

    .case-hero__media {
        position: relative;
        height: 46vh;
        min-height: 340px;
    }

    .case-hero__media picture,
    .case-hero__media img,
    .case-hero__media video {
        height: 100%;
    }

    .case-hero__frame {
        background: var(--bg);
        padding-top: 2rem;
        padding-bottom: calc(3rem + var(--safe-bottom));
    }

    .case-hero__meta {
        font-size: .68rem;
        line-height: 1.45;
    }

    .case-hero__challenge {
        font-size: 1rem;
        line-height: 1.55;
    }

    .case-story__beat,
    .case-summary,
    .case-outcomes,
    .case-story__beat.is-reversed { grid-template-columns: 1fr; }
    .case-story__beat.is-reversed .case-story__media { order: 0; }
    .case-compare__frame { grid-template-columns: 1fr; }
    .case-compare__frame img { height: 32vh; }
    .case-gallery { grid-template-columns: 1fr; }
    .case-gallery img { height: 40vh; }
    .case-hero__title { font-size: clamp(2.35rem, 12vw, 4rem); }
}