/* ============================================================
   Case-study page styles.
   ============================================================ */

.case-back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  padding-top: clamp(6rem, 12vh, 8rem);
  transition: color var(--dur) var(--ease-out);
}
.case-back:hover { color: var(--fg); }
.case-back .arrow { transition: transform var(--dur) var(--ease-out); }
.case-back:hover .arrow { transform: translateX(-4px); }

.case-hero {
  padding-top: var(--space-5);
  padding-bottom: var(--space-7);
}
.case-hero__tag-row {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-5);
}
.case-hero__tag {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 6px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--fg-soft);
}
.case-hero__title {
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  letter-spacing: -0.035em;
  line-height: var(--lh-tight);
  font-weight: 400;
  max-width: 18ch;
}
.case-hero__title em { font-style: italic; color: var(--muted); }
.case-hero__lede {
  font-size: var(--fs-md);
  line-height: var(--lh-snug);
  color: var(--fg-soft);
  max-width: 48ch;
  margin-top: var(--space-5);
}
.case-meta {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-5);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding-block: var(--space-5);
  margin-top: var(--space-7);
  font-size: var(--fs-sm);
}
@media (max-width: 720px) { .case-meta { grid-template-columns: repeat(2, 1fr); } }
.case-meta__cell { display: flex; flex-direction: column; gap: 4px; }
.case-meta__cell .label {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}
.case-meta__cell .value { color: var(--fg); }

.case-cover {
  margin: var(--space-7) 0 var(--space-8);
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--surface-2);
  aspect-ratio: 16 / 10;
}
.case-cover img { width: 100%; height: 100%; object-fit: cover; }

.case-section {
  display: grid;
  grid-template-columns: minmax(0, 0.5fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 6rem);
  padding-block: var(--space-7);
  border-top: 1px solid var(--line);
}
@media (max-width: 760px) { .case-section { grid-template-columns: 1fr; gap: var(--space-4); } }

.case-section__label {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
  position: sticky;
  top: 110px;
  align-self: start;
}
.case-section__body p {
  font-size: var(--fs-md);
  line-height: var(--lh-relaxed);
  color: var(--fg-soft);
  margin-bottom: var(--space-4);
  max-width: 64ch;
}
.case-section__body p:last-child { margin-bottom: 0; }
.case-section__body .placeholder {
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  padding: var(--space-5);
  color: var(--muted);
  font-style: italic;
  background: color-mix(in srgb, var(--surface) 60%, transparent);
}

.case-gallery {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-5);
  margin-block: var(--space-7);
}
.case-gallery img {
  border-radius: var(--radius);
  background: var(--surface-2);
  width: 100%;
}
.case-gallery .g-wide { grid-column: span 12; aspect-ratio: 16 / 9; object-fit: cover; }
.case-gallery .g-half { grid-column: span 6; aspect-ratio: 4 / 5; object-fit: cover; }
@media (max-width: 720px) {
  .case-gallery .g-half { grid-column: span 12; aspect-ratio: 4 / 5; }
}

.case-next {
  border-top: 1px solid var(--line);
  padding-block: var(--space-8);
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.case-next__label {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin-bottom: var(--space-2);
}
.case-next__title {
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  letter-spacing: -0.03em;
  color: var(--fg);
  font-weight: 400;
  transition: color var(--dur) var(--ease-out);
}
.case-next a:hover .case-next__title { color: var(--accent); }
.case-next a {
  display: inline-flex;
  align-items: end;
  gap: var(--space-3);
}
.case-next .arrow { transition: transform var(--dur) var(--ease-out); }
.case-next a:hover .arrow { transform: translateX(8px); }

/* Body fades only on LEAVE — the intro loader covers the entry instead. */
.js body { transition: opacity 320ms var(--ease-out); }
.js body.is-loaded { opacity: 1; }
.js body.is-leaving { opacity: 0; }