/* =============================================
   CASE STUDY PAGE
   ============================================= */

/* Hero — full-width visual */
.cs-hero {
  background: var(--poc-black);
  padding: 140px 0 80px;
  position: relative;
  overflow: hidden;
  color: var(--poc-white);
}

.cs-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(14,14,14,0.3) 0%, rgba(14,14,14,0.85) 100%);
  pointer-events: none;
}

.cs-hero .hero-inner {
  position: relative;
  z-index: 2;
  max-width: 700px;
}

.cs-hero .cs-type {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--poc-accent);
  background: rgba(232,93,38,0.15);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 20px;
}

.cs-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 4.5vw, 56px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.cs-hero .cs-client {
  font-size: 16px;
  color: rgba(255,255,255,0.5);
  font-weight: 500;
}

/* Overview */
.cs-overview {
  padding: var(--section-pad) 0;
}

.cs-overview-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 64px;
  margin-top: 48px;
}

.cs-overview-text h2 {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.5vw, 30px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  line-height: 1.2;
}

.cs-overview-text p {
  font-size: 15px;
  color: var(--poc-mid-gray);
  line-height: 1.75;
  margin-bottom: 16px;
}

.cs-sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.cs-meta-card {
  background: var(--poc-white);
  border: 1px solid var(--poc-warm-gray);
  border-radius: 14px;
  padding: 24px;
}

.cs-meta-card h4 {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--poc-mid-gray);
  margin-bottom: 10px;
}

.cs-meta-card p {
  font-size: 14px;
  font-weight: 600;
  color: var(--poc-black);
  line-height: 1.5;
}

/* Sections — alternating */
.cs-section {
  padding: var(--section-pad) 0;
}

.cs-section.alt-bg { background: var(--poc-white); }

.cs-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

.cs-split.reverse .cs-split-visual { order: 2; }
.cs-split.reverse .cs-split-text { order: 1; }

.cs-split-visual {
  border-radius: 20px;
  overflow: hidden;
  aspect-ratio: 4/3;
}

.cs-split-text .cs-label {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--poc-accent);
  margin-bottom: 14px;
}

.cs-split-text h3 {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.5vw, 30px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 16px;
}

.cs-split-text p {
  font-size: 15px;
  color: var(--poc-mid-gray);
  line-height: 1.75;
}

/* Gallery */
.cs-gallery {
  padding: var(--section-pad) 0;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 48px;
  border-radius: 16px;
  overflow: hidden;
}

.gallery-grid .gallery-item {
  aspect-ratio: 4/3;
  overflow: hidden;
}

/* Next project nav */
.cs-next {
  padding: 60px 0;
  border-top: 1px solid var(--poc-warm-gray);
  text-align: center;
}

.cs-next .next-label {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--poc-mid-gray);
  margin-bottom: 8px;
}

.cs-next a {
  font-family: var(--font-display);
  font-size: clamp(20px, 2.5vw, 28px);
  font-weight: 700;
  color: var(--poc-accent);
  transition: opacity 0.2s;
}

.cs-next a:hover { opacity: 0.7; }

/* Responsive */
@media (max-width: 1024px) {
  .cs-overview-layout { grid-template-columns: 1fr; }
  .cs-split { grid-template-columns: 1fr; gap: 40px; }
  .cs-split.reverse .cs-split-visual { order: 0; }
  .cs-split.reverse .cs-split-text { order: 0; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .cs-hero { padding: 110px 0 56px; }
  .gallery-grid { grid-template-columns: 1fr; }
}