/* ========================================
   Case study pages (Eclectic, SAVIO, TulipKnit)
   Scoped to .page-case so other pages are unchanged.
   ======================================== */

:root {
  --case-surface-paper: #f1eee8;
  --case-surface-ink: #1b1f27;
  --case-gap: clamp(0.5rem, 1.2vw, 0.85rem);
  --case-shell: min(78rem, calc(100% - 2.5rem));
}

.page-case {
  overflow-x: clip;
}

.page-case .site-header {
  background: linear-gradient(180deg, rgba(16, 10, 14, 0.72), transparent 90%);
}

.page-case .site-header.is-scrolled {
  background: rgba(20, 10, 15, 0.85);
}

/* Shell */
.page-case-shell {
  width: var(--case-shell);
  margin-inline: auto;
}

/* Breadcrumb */
.page-case-crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0 0 1rem;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.page-case-crumbs a {
  color: var(--text-muted);
  text-decoration: none;
}

.page-case-crumbs a:hover,
.page-case-crumbs a:focus-visible {
  color: var(--text-primary);
}

.page-case-crumbs a:focus-visible {
  outline: 2px solid var(--accent-wine-bright);
  outline-offset: 3px;
}

/* Intro: brand grid + copy + disciplines */
.page-case-intro {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding-top: calc(var(--header-h) + 1rem);
  padding-bottom: clamp(2rem, 6vw, 4rem);
}

.page-case-intro__copy h1 {
  max-width: none;
  margin: 0 0 1.25rem;
  font-size: clamp(2rem, 7vw + 0.5rem, 3.75rem);
  line-height: 1.02;
  letter-spacing: -0.035em;
  text-transform: uppercase;
  overflow-wrap: break-word;
}

.page-case-intro__copy p {
  max-width: 40rem;
  margin: 0 0 1rem;
  font-size: clamp(0.95rem, 0.25vw + 0.9rem, 1.05rem);
  line-height: 1.7;
  color: var(--text-primary);
}

.page-case-intro__copy p:last-child {
  margin-bottom: 0;
}

.page-case-disciplines h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.page-case-disciplines__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(5.5rem, 1fr));
  gap: 0.4rem;
  max-width: 32rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-case-discipline {
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  padding: 0.4rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-ui);
  text-align: center;
  font-size: 0.625rem;
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* Media sections */
.page-case-section {
  padding-bottom: clamp(2.5rem, 6vw, 4.5rem);
}

.page-case-section__head {
  display: grid;
  gap: 0.35rem;
  margin-bottom: 1rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}

.page-case-section__head h2 {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.page-case-section__head p {
  max-width: 40rem;
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-primary);
}

.page-case-section__body {
  display: grid;
  gap: var(--case-gap);
}

/* Media grid */
.case-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--case-gap);
}

.case-tile {
  position: relative;
  margin: 0;
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: var(--radius-ui);
  background: var(--bg-elevated);
}

.case-tile img,
.case-tile video {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-tile--landscape {
  aspect-ratio: 4 / 3;
}

.case-tile--wide {
  aspect-ratio: 16 / 9;
}

.case-tile--screen {
  aspect-ratio: 16 / 10;
}

.case-tile--contain img {
  object-fit: contain;
  padding: clamp(0.75rem, 3%, 1.5rem);
}

.case-tile--paper {
  background: var(--case-surface-paper);
}

.case-tile--ink {
  background: var(--case-surface-ink);
}

/* Tablet: 2 columns */
@media (min-width: 640px) {
  .case-grid--2,
  .case-grid--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .case-tile--span-2 {
    grid-column: span 2;
    aspect-ratio: 2 / 1;
  }
}

/* Desktop: 3 columns */
@media (min-width: 1024px) {
  .case-grid--3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .case-grid--3 .case-tile--span-2 {
    aspect-ratio: auto;
  }

  .page-case-intro {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    column-gap: clamp(2rem, 4vw, 4rem);
    row-gap: 2rem;
    align-items: start;
  }

  .page-case-intro__media {
    grid-row: span 2;
    position: sticky;
    top: calc(var(--header-h) + 1rem);
  }

  .page-case-intro__copy,
  .page-case-disciplines {
    grid-column: 2;
  }
}

/* More cases */
.page-case-more {
  padding-block: clamp(2rem, 6vw, 4rem);
  border-top: 1px solid var(--line);
}

.page-case-more__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.page-case-more__head h2 {
  margin: 0;
  font-size: clamp(1.125rem, 1.5vw + 0.75rem, 1.5rem);
  text-transform: uppercase;
}

.page-case-more-card {
  display: grid;
  gap: 0.6rem;
  color: inherit;
  text-decoration: none;
}

.page-case-more-card:focus-visible {
  outline: 2px solid var(--accent-wine-bright);
  outline-offset: 4px;
}

.page-case-more-card .case-tile img {
  transition: transform 0.5s ease;
}

.page-case-more-card:hover .case-tile img {
  transform: scale(1.03);
}

.page-case-more-card h3 {
  margin: 0;
  font-size: 0.875rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

@media (max-width: 639px) {
  :root {
    --case-shell: calc(100% - 1.5rem);
  }

  .page-case-more__head .btn {
    width: 100%;
    text-align: center;
  }
}