/* ── Case Study Shared Styles ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --black:  #0A0A0A;
    --ivory:  #F7F3EE;
    --white:  #FFFFFF;
    --sand:   #B5A898;
    --gutter: 56px;
    --serif:  'Playfair Display', Georgia, serif;
    --sans:   'Inter', system-ui, sans-serif;
    --ease:   cubic-bezier(0.16, 1, 0.3, 1);
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--sans);
    font-weight: 300;
    color: var(--black);
    background: var(--ivory);
    -webkit-font-smoothing: antialiased;
}

/* ── Nav (same as index) ── */
nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 28px var(--gutter);
    transition: background 0.3s, padding 0.3s;
}
nav.scrolled {
    background: rgba(247,243,238,0.96);
    padding: 18px var(--gutter);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(181,168,152,0.2);
}
.nav-logo {
    font-family: var(--serif);
    font-size: 18px;
    letter-spacing: 0.04em;
    text-decoration: none;
    color: var(--white);
    transition: color 0.3s;
}
nav.scrolled .nav-logo { color: var(--black); }

.nav-back {
    font-size: 12px;
    font-weight: 400;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    text-decoration: none;
    color: rgba(255,255,255,0.7);
    transition: color 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
}
nav.scrolled .nav-back { color: var(--sand); }
.nav-back:hover { color: var(--white); }
nav.scrolled .nav-back:hover { color: var(--black); }
.nav-back::before { content: '←'; }

/* ── Hero ── */
.case-hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
}
.case-hero-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    filter: brightness(0.7) contrast(1.05);
    transition: transform 0.8s var(--ease);
}
.case-hero:hover .case-hero-img { transform: scale(1.02); }

.case-hero-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 64px var(--gutter);
    background: linear-gradient(to top, rgba(10,10,10,0.65) 0%, transparent 50%);
}
.case-category {
    font-size: 11px;
    font-weight: 400;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--sand);
    margin-bottom: 18px;
}
.case-title {
    font-family: var(--serif);
    font-size: clamp(36px, 6vw, 80px);
    font-weight: 400;
    color: var(--white);
    line-height: 1.08;
    margin-bottom: 28px;
    max-width: 900px;
}
.case-hero-meta {
    display: flex;
    gap: 40px;
    flex-wrap: wrap;
}
.case-hero-meta span {
    font-size: 12px;
    font-weight: 300;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.55);
}

/* ── Intro / Lede ── */
.case-intro {
    padding: 96px var(--gutter);
    max-width: 900px;
    margin: 0 auto;
}
.case-lede {
    font-family: var(--serif);
    font-size: clamp(22px, 3vw, 34px);
    font-style: italic;
    line-height: 1.5;
    color: var(--black);
    font-weight: 400;
}

/* ── Body blocks ── */
.case-body { padding: 0 var(--gutter); }

.case-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3px;
    margin-bottom: 3px;
    align-items: start;
}
.case-block--reverse { direction: rtl; }
.case-block--reverse > * { direction: ltr; }

.case-block-img {
    width: 100%;
    display: block;
    object-fit: cover;
    aspect-ratio: 3 / 4;
    filter: brightness(0.97) contrast(1.04) saturate(0.88);
}
.case-block-text {
    padding: 64px 56px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: var(--white);
}
.case-block-text h2 {
    font-family: var(--serif);
    font-size: clamp(20px, 2.5vw, 32px);
    font-weight: 400;
    line-height: 1.25;
    margin-bottom: 24px;
    color: var(--black);
}
.case-block-text p {
    font-size: 15px;
    font-weight: 300;
    line-height: 1.8;
    color: #444;
    margin-bottom: 18px;
}
.case-block-text p:last-child { margin-bottom: 0; }

/* ── Full-bleed image ── */
.case-full {
    width: 100%;
    display: block;
    object-fit: cover;
    aspect-ratio: 16 / 7;
    margin-bottom: 3px;
    filter: brightness(0.97) contrast(1.04) saturate(0.88);
}
.case-full--tall { aspect-ratio: 4 / 3; }

/* ── Gallery grid ── */
.case-gallery {
    padding: 0 var(--gutter);
    margin-bottom: 3px;
}
.gallery-grid {
    display: grid;
    gap: 3px;
}
.gallery-grid--2 { grid-template-columns: 1fr 1fr; }
.gallery-grid--3 { grid-template-columns: 1fr 1fr 1fr; }

.gallery-grid img {
    width: 100%;
    display: block;
    object-fit: cover;
    aspect-ratio: 3 / 4;
    filter: brightness(0.97) contrast(1.04) saturate(0.88);
}
.gallery-grid--landscape img { aspect-ratio: 4 / 3; }

/* ── Credits ── */
.case-credits {
    padding: 80px var(--gutter);
    border-top: 1px solid rgba(181,168,152,0.3);
    max-width: 800px;
}
.credits-label {
    font-size: 10px;
    font-weight: 400;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--sand);
    margin-bottom: 32px;
}
.credits-grid {
    display: grid;
    grid-template-columns: 160px 1fr;
    gap: 12px 24px;
}
.credits-key {
    font-size: 11px;
    font-weight: 400;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--sand);
}
.credits-val {
    font-size: 14px;
    font-weight: 300;
    color: var(--black);
}

/* ── Next project ── */
.case-next {
    background: var(--black);
    padding: 80px var(--gutter);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.case-next-label {
    font-size: 10px;
    font-weight: 400;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--sand);
}
.case-next-link {
    font-family: var(--serif);
    font-size: clamp(22px, 3vw, 40px);
    font-weight: 400;
    color: var(--white);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 20px;
    transition: gap 0.3s var(--ease);
}
.case-next-link:hover { gap: 32px; }
.case-next-arrow { font-style: normal; }

/* ── Responsive ── */
@media (max-width: 768px) {
    :root { --gutter: 24px; }
    .case-block { grid-template-columns: 1fr; }
    .case-block--reverse { direction: ltr; }
    .gallery-grid--3 { grid-template-columns: 1fr 1fr; }
    .case-next { flex-direction: column; gap: 16px; align-items: flex-start; }
    .credits-grid { grid-template-columns: 120px 1fr; }
}