/* ============================================
   DATA CREEK System — Portfolio / Case Studies
   ============================================ */

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

.case-study-card {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: 0 2px 12px var(--shadow);
  transition: var(--transition);
}

.case-study-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 30px var(--shadow-lg);
}

.case-study-header {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  padding: var(--space-md) var(--space-lg);
  color: var(--white);
  position: relative;
}

.case-study-header .case-tag {
  display: inline-block;
  background: rgba(243, 156, 18, 0.2);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 50px;
  margin-bottom: var(--space-xs);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.case-study-header h3 {
  color: var(--white);
  font-size: var(--font-size-lg);
  margin-bottom: 0;
}

.case-study-body {
  padding: var(--space-md) var(--space-lg);
}

.case-detail {
  margin-bottom: var(--space-sm);
}

.case-detail .detail-label {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--secondary);
  margin-bottom: 4px;
}

.case-detail p {
  color: #555;
  font-size: var(--font-size-sm);
  margin-bottom: 0;
}

.case-tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--border);
}

.tech-tag {
  background: var(--light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 4px;
}

/* Tech Stack Section */
.tech-stack {
  background: var(--white);
}

.tech-stack-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.tech-category {
  text-align: center;
  padding: var(--space-md);
  border-radius: var(--border-radius-lg);
  background: var(--light);
  transition: var(--transition);
}

.tech-category:hover {
  background: var(--white);
  box-shadow: 0 4px 20px var(--shadow);
}

.tech-category-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto var(--space-sm);
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

.tech-category-icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--white);
  stroke-width: 2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.tech-category h4 {
  font-size: var(--font-size-base);
  color: var(--primary);
  margin-bottom: var(--space-xs);
}

.tech-category .tech-list {
  font-size: 13px;
  color: #666;
  line-height: 1.8;
}

/* Industries Section */
.industries {
  background: var(--light);
}

.industries-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.industry-card {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  padding: var(--space-lg);
  box-shadow: 0 2px 12px var(--shadow);
  transition: var(--transition);
  text-align: center;
}

.industry-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px var(--shadow-lg);
}

.industry-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-sm);
  background: linear-gradient(135deg, var(--secondary), var(--accent));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.industry-icon svg {
  width: 26px;
  height: 26px;
  stroke: var(--white);
  stroke-width: 2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.industry-card h3 {
  font-size: var(--font-size-base);
  margin-bottom: var(--space-xs);
}

.industry-card p {
  font-size: 13px;
  color: #666;
}

/* Delivery Model Section */
.delivery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.delivery-card {
  text-align: center;
  padding: var(--space-lg) var(--space-md);
  border-radius: var(--border-radius-lg);
  background: var(--white);
  box-shadow: 0 2px 12px var(--shadow);
  transition: var(--transition);
}

.delivery-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px var(--shadow-lg);
}

.delivery-number {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-sm);
  color: var(--white);
  font-weight: 700;
  font-size: var(--font-size-lg);
}

.delivery-card h3 {
  font-size: var(--font-size-base);
  margin-bottom: var(--space-xs);
}

.delivery-card p {
  font-size: 13px;
  color: #666;
}

/* Page hero banner (shared across inner pages) */
.page-hero {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--white);
  padding: 140px 0 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 50%, rgba(46, 134, 222, 0.2) 0%, transparent 50%);
  pointer-events: none;
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.page-hero h1 {
  color: var(--white);
  margin-bottom: var(--space-sm);
}

.page-hero p {
  opacity: 0.9;
  font-size: var(--font-size-lg);
  max-width: 600px;
  margin: 0 auto;
}

.breadcrumb {
  font-size: var(--font-size-sm);
  opacity: 0.7;
  margin-bottom: var(--space-sm);
}

.breadcrumb a {
  color: var(--white);
}

/* Responsive */
@media (max-width: 1024px) {
  .tech-stack-grid { grid-template-columns: repeat(2, 1fr); }
  .delivery-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .portfolio-grid { grid-template-columns: 1fr; }
  .tech-stack-grid { grid-template-columns: 1fr; }
  .industries-grid { grid-template-columns: 1fr; }
  .delivery-grid { grid-template-columns: 1fr; }
}