.page-hero {
  padding: 140px 0 60px;
  background: linear-gradient(135deg, var(--section-bg) 0%, var(--white) 100%);
  text-align: center;
}

.page-hero h1 {
  margin-bottom: 16px;
}

.page-hero p {
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto;
}

.filter-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 40px 0;
}

.filter-btn {
  padding: 10px 24px;
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 500;
  border: 1px solid var(--border);
  background: var(--white);
  color: var(--text-light);
  cursor: pointer;
  transition: all var(--transition);
}

.filter-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.filter-btn.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

.case-studies-page-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding-bottom: 100px;
}

.case-study-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
}

.case-study-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.case-study-card.hidden {
  display: none;
}

.case-study-image {
  height: 180px;
  background: linear-gradient(135deg, var(--primary-50), var(--section-bg));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: var(--primary);
}

.case-study-body {
  padding: 24px;
}

.case-study-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.case-study-body h3 {
  font-size: 1.125rem;
  margin-bottom: 12px;
}

.case-study-body > p {
  font-size: 0.875rem;
  line-height: 1.6;
  margin-bottom: 16px;
  color: var(--text-light);
}

.case-study-results {
  display: flex;
  gap: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border-light);
}

.case-study-result {
  text-align: center;
}

.case-study-result-value {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--success);
}

.case-study-result-label {
  font-size: 0.75rem;
  color: var(--text-light);
}

.case-cta-section {
  text-align: center;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}

.case-cta-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.case-cta-section h2 {
  color: var(--white);
  margin-bottom: 16px;
  position: relative;
}

.case-cta-section p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.125rem;
  margin-bottom: 32px;
  position: relative;
}

.case-cta-section .btn-light {
  position: relative;
}

@media (max-width: 1024px) {
  .case-studies-page-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .case-studies-page-grid {
    grid-template-columns: 1fr;
  }
  .filter-bar {
    flex-direction: column;
    align-items: stretch;
  }
  .filter-btn {
    text-align: center;
  }
}