/* === Case Study Styles === */

/* --- Case Study Hero --- */
.case-study-hero {
  padding: 140px 0 60px;
  text-align: center;
  position: relative;
  background: linear-gradient(180deg, rgba(99, 102, 241, 0.06) 0%, var(--bg-primary) 100%);
}
.case-study-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 500px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}
.case-study-hero .industry-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-solid);
  background: var(--accent-glow);
  border: 1px solid rgba(99, 102, 241, 0.25);
  border-radius: 20px;
  padding: 5px 16px;
  margin-bottom: 20px;
  position: relative;
}
.case-study-hero h1 {
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 16px;
  max-width: 780px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
}
.case-study-hero .company-name {
  font-size: 1.1rem;
  color: var(--text-secondary);
  position: relative;
  margin-bottom: 8px;
}
.case-study-hero .company-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.6;
  position: relative;
}

/* --- Stats Row --- */
.case-study-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 820px;
  margin: -30px auto 0;
  padding: 0 24px;
  position: relative;
  z-index: 2;
}
.stat-box {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px 16px;
  text-align: center;
}
.stat-box .stat-value {
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 4px;
  line-height: 1.2;
}
.stat-box .stat-label {
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.4;
}
.stat-box .stat-detail {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* --- Blockquote --- */
.case-study-quote {
  max-width: 720px;
  margin: 60px auto;
  padding: 0 24px;
}
.case-study-quote blockquote {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  line-height: 1.7;
  font-style: italic;
  padding-left: 24px;
  border-left: 3px solid var(--accent-solid);
  margin: 0;
}
.case-study-quote .quote-attribution {
  margin-top: 16px;
  padding-left: 24px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
}
.case-study-quote .quote-attribution strong {
  color: var(--text-secondary);
}

/* --- Long-form Content --- */
.case-study-content {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px 60px;
  line-height: 1.8;
}
.case-study-content h2 {
  font-family: var(--font-mono);
  font-size: clamp(1.2rem, 2.5vw, 1.5rem);
  font-weight: 700;
  margin-top: 48px;
  margin-bottom: 16px;
  color: var(--text-primary);
}
.case-study-content h2:first-child {
  margin-top: 0;
}
.case-study-content p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}
.case-study-content p strong {
  color: var(--text-primary);
  font-weight: 600;
}
.case-study-content ul,
.case-study-content ol {
  margin-bottom: 20px;
  padding-left: 24px;
}
.case-study-content li {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
  line-height: 1.7;
}
.case-study-content li strong {
  color: var(--text-primary);
}

/* --- Technical Setup --- */
.case-study-setup {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px 48px;
}
.case-study-setup h2 {
  font-family: var(--font-mono);
  font-size: clamp(1.2rem, 2.5vw, 1.5rem);
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-primary);
}
.case-study-setup p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.8;
}
.case-study-setup .code-block {
  max-width: 100%;
  margin: 20px 0;
}

/* --- Bottom CTA Card --- */
.case-study-cta {
  max-width: 720px;
  margin: 0 auto 60px;
  padding: 0 24px;
}
.case-study-cta .cta-card {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(139, 92, 246, 0.08));
  border: 1px solid rgba(99, 102, 241, 0.25);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  text-align: center;
}
.case-study-cta .cta-card h3 {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.case-study-cta .cta-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.6;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}
.case-study-cta .cta-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.case-study-cta .btn-secondary {
  display: inline-block;
  padding: 12px 28px;
  border: 1px solid var(--accent-solid);
  color: var(--accent-solid);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
}
.case-study-cta .btn-secondary:hover {
  background: var(--accent-solid);
  color: #fff;
  text-decoration: none;
}
.case-study-cta .btn-primary {
  display: inline-block;
  text-decoration: none;
}
.case-study-cta .btn-primary:hover {
  text-decoration: none;
}

/* --- Other Case Study Link --- */
.case-study-other {
  max-width: 720px;
  margin: 0 auto 60px;
  padding: 0 24px;
}
.case-study-other h3 {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.case-study-other .other-card {
  display: block;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  text-decoration: none;
  transition: border-color 0.2s, transform 0.2s;
}
.case-study-other .other-card:hover {
  border-color: var(--accent-solid);
  transform: translateY(-2px);
  text-decoration: none;
}
.case-study-other .other-card .other-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-solid);
  margin-bottom: 8px;
}
.case-study-other .other-card h4 {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
  line-height: 1.4;
}
.case-study-other .other-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* --- Case Studies Index Grid --- */
.case-studies-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.case-study-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}
.case-study-card:hover {
  border-color: var(--accent-solid);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(99, 102, 241, 0.12);
  text-decoration: none;
}
.case-study-card .card-industry {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-solid);
  background: var(--accent-glow);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: 16px;
  padding: 4px 12px;
  margin-bottom: 16px;
  align-self: flex-start;
}
.case-study-card .card-company {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.case-study-card h3 {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.35;
  margin-bottom: 12px;
}
.case-study-card .card-excerpt {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
  flex: 1;
}
.case-study-card .card-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}
.case-study-card .card-stat {
  text-align: center;
}
.case-study-card .card-stat-value {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.case-study-card .card-stat-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 2px;
}
.case-study-card .card-arrow {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent-solid);
  margin-top: 16px;
}
.case-study-card:hover .card-arrow {
  gap: 10px;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .case-study-hero {
    padding: 110px 0 40px;
  }
  .case-study-hero h1 {
    padding: 0 16px;
  }
  .case-study-stats {
    grid-template-columns: repeat(2, 1fr);
    margin-top: -20px;
    gap: 12px;
  }
  .stat-box {
    padding: 18px 12px;
  }
  .case-study-quote {
    margin: 40px auto;
  }
  .case-study-content {
    padding-bottom: 40px;
  }
  .case-study-content h2 {
    margin-top: 36px;
  }
  .case-studies-grid {
    grid-template-columns: 1fr;
  }
  .case-study-cta .cta-card {
    padding: 28px 20px;
  }
  .case-study-cta .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 480px) {
  .case-study-stats {
    grid-template-columns: 1fr 1fr;
  }
  .stat-box .stat-value {
    font-size: 1.2rem;
  }
}