/* ============================================================
   CASE STUDIES SECTION
============================================================ */

#case-studies {
  padding: var(--section-gap) 0;
  border-bottom: 1px solid var(--color-border);
}

.case-studies-header {
  max-width: 54rem;
  margin-bottom: 2rem;
}

.case-studies-heading {
  font-size: 2rem;
  margin-bottom: 0.85rem;
}

.case-studies-intro {
  margin: 0;
  color: var(--color-text-muted);
  line-height: 1.8;
}

.case-studies-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 1.25rem;
}

.case-study-card {
  grid-column: 1 / -1;
  position: relative;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background:
    linear-gradient(180deg, var(--color-surface) 0%, var(--color-panel-bg) 100%);
  box-shadow: 0 16px 36px var(--color-shadow-elevated);
  padding: 1.5rem;
  overflow: hidden;
}

.case-study-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at top right, var(--color-hero-ring-soft), transparent 52%);
  pointer-events: none;
}

.case-study-card-top,
.case-study-wide-layout,
.case-study-details,
.case-study-aside {
  position: relative;
  z-index: 1;
}

.case-study-card-top {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  margin-bottom: 1.25rem;
}

.case-study-index {
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}

.case-study-tag {
  align-self: flex-start;
  border: 1px solid var(--color-accent-border-strong);
  border-radius: 999px;
  padding: 0.25rem 0.65rem;
  color: var(--color-accent);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.case-study-title {
  font-size: 1.55rem;
  margin: 0;
  color: var(--color-text);
}

.case-study-details {
  display: grid;
  gap: 1rem;
  margin: 0;
}

.case-study-detail {
  display: grid;
  gap: 0.25rem;
}

.case-study-detail dt {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.case-study-detail dd {
  margin: 0;
  color: var(--color-text-muted);
  line-height: 1.75;
}

.case-study-stack {
  margin: 1.25rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: baseline;
  color: var(--color-text-faint);
}

.case-study-stack-label,
.case-study-link-label {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.case-study-wide-layout {
  display: grid;
  gap: 1.5rem;
}

.case-study-aside {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.case-study-aside .case-study-stack {
  margin-top: 0;
}

.case-study-links {
  display: grid;
  gap: 0.35rem;
}

.case-study-link {
  color: var(--color-link);
  text-decoration: none;
  font-size: 0.875rem;
  letter-spacing: 0.04em;
}

.case-study-link:hover {
  color: var(--color-accent);
  text-decoration: none;
}

@media (min-width: 992px) {
  .case-study-card-primary {
    grid-column: span 7;
  }

  .case-study-card-secondary {
    grid-column: span 5;
  }

  .case-study-wide-layout {
    grid-template-columns: minmax(0, 1.45fr) minmax(250px, 0.75fr);
  }
}

@media (max-width: 768px) {
  .case-study-card {
    padding: 1.25rem;
  }

  .case-study-title {
    font-size: 1.35rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .case-study-card {
    box-shadow: none;
  }
}