/* ===== Case Study Pages ===== */

.case-study-page {
  background: var(--bg-dark);
}

.case-study-hero {
  padding-top: 120px;
  padding-bottom: 48px;
}

.case-study-hero .container {
  max-width: 1400px;
}

.case-study-hero-image {
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 48px;
}

.case-study-hero-image img {
  width: 100%;
  height: auto;
  display: block;
}

.case-study-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.case-study-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--gray);
  margin-bottom: 32px;
  transition: color var(--transition);
}

.case-study-back:hover {
  color: var(--white);
}

/* Overview */
.cs-overview {
  padding: 80px 0;
  background: var(--bg-black);
}

.cs-overview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.cs-overview-text h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 24px;
}

.cs-overview-text p {
  color: var(--gray);
  font-size: 16px;
  line-height: 1.8;
}

.cs-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.cs-stat {
  padding: 32px 24px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.02);
}

.cs-stat-value {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 12px;
}

.cs-stat-label {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.5;
}

/* Meta */
.cs-meta {
  padding: 48px 0;
  border-bottom: 1px solid var(--border);
}

.cs-meta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.cs-meta-item h3 {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--gray);
  margin-bottom: 12px;
  text-transform: uppercase;
}

.cs-meta-item p {
  font-size: 18px;
  font-weight: 500;
}

.cs-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.cs-tag {
  font-size: 13px;
  color: var(--gray);
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 4px;
}

/* Challenge & Approach */
.cs-challenge {
  padding: 80px 0;
}

.cs-challenge-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}

.cs-challenge-block h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin-bottom: 24px;
}

.cs-challenge-block p {
  color: var(--gray);
  font-size: 16px;
  line-height: 1.8;
}

/* Content Sections */
.cs-section {
  padding: 80px 0;
}

.cs-section:nth-child(even) {
  background: var(--bg-black);
}

.cs-section-header {
  margin-bottom: 48px;
}

.cs-section-header h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
}

.cs-section-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.cs-section-content.reverse {
  direction: rtl;
}

.cs-section-content.reverse > * {
  direction: ltr;
}

.cs-section-text p {
  color: var(--gray);
  font-size: 16px;
  line-height: 1.8;
}

.cs-section-image {
  border-radius: 8px;
  overflow: hidden;
}

.cs-section-image img {
  width: 100%;
  height: auto;
  display: block;
}

.cs-section-images {
  display: grid;
  gap: 16px;
}

.cs-section-images.two-col {
  grid-template-columns: 1fr 1fr;
}

/* Results */
.cs-results {
  padding: 80px 0;
  background: var(--bg-black);
  text-align: center;
}

.cs-results h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 48px;
}

.cs-results .cs-stats {
  max-width: 900px;
  margin: 0 auto;
}

/* Other Case Studies */
.cs-other {
  padding: 80px 0;
}

.cs-other h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 48px;
  text-align: center;
}

.cs-other-card {
  display: block;
  max-width: 600px;
  margin: 0 auto;
  border-radius: 8px;
  overflow: hidden;
  transition: transform var(--transition);
}

.cs-other-card:hover {
  transform: translateY(-4px);
}

.cs-other-card-image {
  aspect-ratio: 16/10;
  overflow: hidden;
}

.cs-other-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.cs-other-card:hover .cs-other-card-image img {
  transform: scale(1.05);
}

.cs-other-card-content {
  padding: 24px 0;
}

.cs-other-card-content h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.cs-other-card-content p {
  color: var(--gray);
  font-size: 14px;
}

/* Responsive */
@media (max-width: 900px) {
  .cs-overview-grid,
  .cs-challenge-grid,
  .cs-section-content,
  .cs-meta-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .cs-stats {
    grid-template-columns: 1fr;
  }

  .cs-section-content.reverse {
    direction: ltr;
  }

  .cs-section-images.two-col {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .case-study-hero {
    padding-top: 96px;
    padding-bottom: 32px;
  }

  .case-study-hero-image {
    margin-bottom: 32px;
  }

  .case-study-title {
    font-size: clamp(2rem, 9vw, 2.75rem);
  }

  .case-study-back {
    margin-bottom: 24px;
  }

  .cs-overview,
  .cs-challenge,
  .cs-section,
  .cs-results,
  .cs-other {
    padding: 56px 0;
  }

  .cs-meta {
    padding: 40px 0;
  }

  .cs-meta-grid {
    gap: 24px;
  }

  .cs-overview-grid,
  .cs-challenge-grid,
  .cs-section-content {
    gap: 28px;
  }

  .cs-section-header {
    margin-bottom: 32px;
  }

  .cs-stat {
    padding: 24px 20px;
  }

  .cs-other h2 {
    margin-bottom: 32px;
  }
}

@media (max-width: 480px) {
  .case-study-hero {
    padding-top: 88px;
  }

  .cs-overview-text p,
  .cs-challenge-block p,
  .cs-section-text p {
    font-size: 15px;
  }

  .cs-meta-item p {
    font-size: 16px;
  }

  .cs-stat-value {
    font-size: 1.75rem;
  }

  .cs-other-card-content h3 {
    font-size: 20px;
  }
}