/**
 * Projects Section — Premium
 * @package Robert_Portfolio
 */

.projects {
  background-color: var(--color-bg-primary);
  padding-top: var(--spacing-4xl);
  padding-bottom: var(--spacing-4xl);
  position: relative;
}

.projects::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--color-border-strong) 30%, var(--color-border-strong) 70%, transparent 100%);
}

/* Section Header */
.projects .section-header {
  margin-bottom: var(--spacing-2xl);
}

.projects .section-title {
  margin-bottom: var(--spacing-sm);
}

.projects .section-subtitle {
  color: var(--color-text-secondary);
}

/* Filter */
.projects-filter {
  display: flex;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: var(--spacing-2xl);
}

.filter-btn {
  padding: 6px 16px;
  background-color: transparent;
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: var(--font-family-base);
  letter-spacing: 0.01em;
}

.filter-btn:hover {
  border-color: var(--color-border-strong);
  color: var(--color-text-secondary);
}

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

.project-card.hidden { display: none; }

/* Card Image */
.project-card-image {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
}

.project-card-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--transition-base);
}

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

/* Card Content */
.project-card-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

/* Card Meta */
.project-card-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.project-card-category {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-muted);
  font-family: var(--font-family-mono);
  background: var(--color-surface-subtle);
  border: 1px solid var(--color-border-subtle);
  padding: 2px 9px;
  border-radius: var(--radius-full);
}

/* Card Title */
.project-card-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  letter-spacing: var(--letter-spacing-tight);
  line-height: var(--line-height-snug);
  margin: 0;
}

.project-card-title a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.project-card-title a:hover {
  color: var(--color-accent-primary);
}

/* Card Excerpt */
.project-card-excerpt {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin: 0;
}

/* Card Tech */
.project-card-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding-top: var(--spacing-sm);
}

/* Card Link */
.project-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent-primary);
  text-decoration: none;
  transition: all var(--transition-fast);
  margin-top: var(--spacing-sm);
}

.project-card-link:hover {
  color: var(--color-accent-hover);
  gap: 10px;
}

.project-card-link svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  transition: transform var(--transition-fast);
}

/* Card Actions (multiple buttons) */
.project-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-divider);
}

/* ===================================
   Case Study Modal Content — Premium Design
   =================================== */
.case-study-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
  animation: caseStudyFadeIn 0.5s cubic-bezier(0.4, 0, 0.2, 1) 0.2s both;
}

@keyframes caseStudyFadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Case Study Header */
.case-study-header {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid rgba(59, 130, 246, 0.2);
}

.case-study-breadcrumbs {
  font-size: var(--font-size-xs);
  font-family: var(--font-family-mono);
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  list-style: none;
  margin: 0;
  padding: 0;
}

.breadcrumb-item {
  color: var(--color-text-muted);
}

.breadcrumb-item a {
  color: var(--color-accent-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.breadcrumb-item a:hover {
  color: var(--color-accent-hover);
}

.breadcrumb-item[aria-current="page"] {
  color: var(--color-text-secondary);
}

.breadcrumb-item + .breadcrumb-item::before {
  content: '/';
  margin-right: var(--spacing-sm);
  color: var(--color-text-faint);
}

.case-study-category-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.15) 0%, rgba(34, 211, 238, 0.1) 100%);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent-primary);
  font-family: var(--font-family-mono);
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
  width: fit-content;
}

.case-study-main-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-text-primary);
  margin: 0;
  letter-spacing: var(--letter-spacing-tight);
  line-height: var(--line-height-tight);
  background: linear-gradient(135deg, #ffffff 0%, #a5b4fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Featured Image */
.case-study-featured-image {
  padding: 0;
  background: transparent;
  border: none;
}

.featured-image-wrapper {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(59, 130, 246, 0.2);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.featured-image-wrapper img {
  width: 100%;
  height: auto;
  display: block;
}

.case-study-section {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.02) 0%, transparent 100%);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.case-study-section:hover {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.03) 0%, rgba(59, 130, 246, 0.03) 100%);
  border-color: rgba(59, 130, 246, 0.15);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
}

.case-study-section-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin: 0;
  letter-spacing: var(--letter-spacing-tight);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid rgba(59, 130, 246, 0.2);
  background: linear-gradient(90deg, rgba(59, 130, 246, 0.1) 0%, transparent 100%);
  margin-left: -1rem;
  margin-right: -1rem;
  padding-left: 1rem;
  padding-right: 1rem;
  position: relative;
}

.case-study-section-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 70%;
  background: linear-gradient(180deg, var(--color-accent-primary), var(--color-cyan));
  border-radius: 2px;
}

.case-study-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.case-study-results {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--spacing-lg);
}

.result-metric {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  padding: var(--spacing-lg);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.08) 0%, rgba(34, 211, 238, 0.05) 100%);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base);
}

.result-metric::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent-primary), var(--color-cyan));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.result-metric:hover {
  transform: translateY(-4px);
  border-color: rgba(59, 130, 246, 0.4);
  box-shadow: 0 8px 32px rgba(59, 130, 246, 0.15);
}

.result-metric:hover::before {
  opacity: 1;
}

.result-value {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-accent-primary);
  line-height: 1;
  background: linear-gradient(135deg, var(--color-accent-primary), var(--color-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.result-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
}

/* Problem & Solution Grid */
.problem-solution-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.problem-solution-card {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.02) 0%, transparent 100%);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.problem-solution-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  transition: opacity var(--transition-base);
}

.problem-card::before {
  background: linear-gradient(90deg, var(--color-error), rgba(248, 113, 113, 0.3));
  opacity: 0;
}

.solution-card::before {
  background: linear-gradient(90deg, var(--color-success), rgba(16, 217, 160, 0.3));
  opacity: 0;
}

.problem-solution-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
}

.problem-card:hover::before {
  opacity: 1;
}

.solution-card:hover::before {
  opacity: 1;
}

.card-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.problem-card .card-icon {
  background: linear-gradient(135deg, rgba(248, 113, 113, 0.15) 0%, rgba(248, 113, 113, 0.08) 100%);
  border: 1px solid rgba(248, 113, 113, 0.3);
}

.solution-card .card-icon {
  background: linear-gradient(135deg, rgba(16, 217, 160, 0.15) 0%, rgba(16, 217, 160, 0.08) 100%);
  border: 1px solid rgba(16, 217, 160, 0.3);
}

.card-icon svg {
  width: 24px;
  height: 24px;
  stroke: currentColor;
}

.problem-card .card-icon svg {
  color: var(--color-error);
}

.solution-card .card-icon svg {
  color: var(--color-success);
}

.card-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin: 0;
  letter-spacing: var(--letter-spacing-tight);
}

.card-content {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin: 0;
}

/* Tech Badge Large */
.tech-badge-large {
  padding: 6px 14px;
  font-size: var(--font-size-sm);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.12) 0%, rgba(34, 211, 238, 0.08) 100%);
  border: 1px solid rgba(59, 130, 246, 0.25);
}

/* Case Study Link Buttons */
.case-study-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
  color: var(--color-text-secondary);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  transition: all var(--transition-fast);
  font-family: var(--font-family-base);
}

.case-study-link-btn:hover {
  color: var(--color-accent-primary);
  border-color: rgba(59, 130, 246, 0.4);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(34, 211, 238, 0.05) 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(59, 130, 246, 0.2);
}

.case-study-link-primary {
  background: linear-gradient(135deg, var(--color-accent-primary) 0%, rgba(59, 130, 246, 0.9) 100%);
  color: #ffffff;
  border-color: var(--color-accent-primary);
}

.case-study-link-primary:hover {
  background: linear-gradient(135deg, var(--color-accent-hover) 0%, rgba(96, 165, 250, 0.9) 100%);
  border-color: var(--color-accent-hover);
  box-shadow: 0 8px 24px rgba(59, 130, 246, 0.35);
}

.case-study-link-btn svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  flex-shrink: 0;
}

/* Gallery */
.case-study-gallery {
  display: flex;
  justify-content: center;
}

.gallery-view-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background-color: var(--color-accent-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.gallery-view-btn:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.gallery-view-btn svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
}

/* PDF Download */
.pdf-download-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background-color: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.pdf-download-btn:hover {
  background-color: var(--color-surface-hover);
  border-color: var(--color-border-accent);
  color: var(--color-accent-primary);
}

.pdf-download-btn svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
}

/* Case Study Links */
.case-study-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background-color: var(--color-surface-subtle);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  transition: all var(--transition-fast);
}

.project-link:hover {
  color: var(--color-accent-primary);
  border-color: var(--color-border-accent);
  background-color: var(--color-accent-subtle);
  transform: translateY(-1px);
}

.project-link svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
}

/* No Results */
.projects-no-results {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--spacing-4xl);
  color: var(--color-text-muted);
  font-size: var(--font-size-base);
}

/* Grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* Card */
.project-card {
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: 0;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent-primary), var(--color-cyan));
  opacity: 0;
  transition: opacity var(--transition-base);
  z-index: 1;
}

.project-card:hover {
  border-color: var(--color-border-accent);
  box-shadow: var(--shadow-accent);
  transform: translateY(-4px);
}

.project-card:hover::before {
  opacity: 1;
}

/* Card Image */
.project-card-image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background-color: var(--color-bg-tertiary);
}

.project-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

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

/* Card Content */
.project-card-content {
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  flex: 1;
}

/* Project category */
.project-category {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-accent-primary);
  font-family: var(--font-family-mono);
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
}

/* Card Title */
.project-card-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  letter-spacing: var(--letter-spacing-tight);
  line-height: var(--line-height-snug);
  margin: 0;
}

/* Card Excerpt */
.project-card-excerpt {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin: 0;
}

/* Card Tech */
.project-card-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding-top: var(--spacing-sm);
}

/* Card Button */
.project-card-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent-primary);
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-family-base);
  padding: 4px 0;
  transition: gap var(--transition-fast), color var(--transition-fast);
  margin-top: auto;
}

.project-card-btn:hover {
  color: var(--color-accent-hover);
  gap: 10px;
}

.project-card-btn .arrow {
  font-size: var(--font-size-base);
  line-height: 1;
  transition: transform var(--transition-fast);
}

.project-card-btn:hover .arrow {
  transform: translateX(4px);
}

/* Card header */
.project-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-md);
}

.project-card-icon {
  width: 44px;
  height: 44px;
  background-color: var(--color-accent-subtle);
  border: 1px solid var(--color-border-accent);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.project-card:hover .project-card-icon {
  background-color: var(--color-accent-primary);
  border-color: var(--color-accent-primary);
}

.project-card-icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--color-accent-primary);
  fill: none;
  transition: stroke var(--transition-fast);
}

.project-card:hover .project-card-icon svg {
  stroke: #fff;
}

.project-badges {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.project-badge-category {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-muted);
  font-family: var(--font-family-mono);
  background: var(--color-surface-subtle);
  border: 1px solid var(--color-border-subtle);
  padding: 2px 9px;
  border-radius: var(--radius-full);
}

.project-badge-live {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-success);
  background: rgba(16, 217, 160, 0.08);
  border: 1px solid rgba(16, 217, 160, 0.2);
  padding: 2px 9px;
  border-radius: var(--radius-full);
}

/* Card body */
.project-card-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  letter-spacing: var(--letter-spacing-tight);
  line-height: var(--line-height-snug);
}

.project-card-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-base);
  flex: 1;
}

/* Tech stack */
.project-tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tech-tag {
  font-size: var(--font-size-xs);
  font-family: var(--font-family-mono);
  color: var(--color-text-muted);
  background: var(--color-surface-subtle);
  border: 1px solid var(--color-border-subtle);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.01em;
}

/* Card footer */
.project-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-divider);
  gap: var(--spacing-md);
}

.project-links {
  display: flex;
  gap: 8px;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-muted);
  text-decoration: none;
  padding: 4px 10px;
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.project-link:hover {
  color: var(--color-accent-primary);
  border-color: var(--color-border-accent);
  background-color: var(--color-accent-subtle);
}

.project-link svg {
  width: 12px;
  height: 12px;
  stroke: currentColor;
  fill: none;
}

.project-case-study-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent-primary);
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-family-base);
  padding: 4px 0;
  transition: gap var(--transition-fast), color var(--transition-fast);
}

.project-case-study-btn:hover {
  color: var(--color-accent-hover);
  gap: 8px;
}

/* Responsive */
@media (max-width: 800px) {
  .projects-grid { grid-template-columns: 1fr; }
}

/* ============================================
   Featured Projects Showcase
   ============================================ */

/* Featured Project Main (#1) */
.featured-project-main {
  background-color: var(--color-bg-secondary);
  border: 2px solid var(--color-border-accent);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-3xl);
  position: relative;
  overflow: hidden;
}

.featured-project-main::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent-primary), var(--color-cyan));
}

.featured-project-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
}

.featured-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background-color: var(--color-accent-subtle);
  border: 1px solid var(--color-border-accent);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent-primary);
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
}

.featured-badge svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
}

.featured-badge-sm {
  padding: 4px 10px;
  font-size: 10px;
}

.featured-project-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--spacing-xl);
}

.featured-project-image {
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-bg-tertiary);
}

.featured-project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.featured-project-main:hover .featured-project-image img {
  transform: scale(1.03);
}

.featured-project-placeholder {
  width: 100%;
  height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-bg-tertiary);
  border: 1px dashed var(--color-border-subtle);
  border-radius: var(--radius-md);
}

.featured-project-placeholder svg {
  width: 48px;
  height: 48px;
  stroke: var(--color-text-muted);
}

.featured-project-details {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.featured-project-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin: 0;
  line-height: var(--line-height-tight);
}

.featured-project-excerpt {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin: 0;
}

.featured-project-highlights {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background-color: var(--color-surface-subtle);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
}

.highlight-item {
  display: flex;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xs);
}

.highlight-label {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-muted);
  flex-shrink: 0;
  min-width: 70px;
}

.highlight-text {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

.featured-project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding-top: var(--spacing-sm);
}

.featured-project-actions {
  display: flex;
  gap: var(--spacing-md);
  margin-top: auto;
  padding-top: var(--spacing-md);
}

.btn-case-study,
.btn-visit-project {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  padding: 8px 16px;
  border-radius: var(--radius);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: var(--font-family-base);
}

.btn-case-study {
  background-color: var(--color-accent-primary);
  color: #fff;
  border: 1px solid var(--color-accent-primary);
}

.btn-case-study:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  gap: 10px;
}

.btn-visit-project {
  background-color: transparent;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border-strong);
}

.btn-visit-project:hover {
  color: var(--color-accent-primary);
  border-color: var(--color-border-accent);
  background-color: var(--color-surface-subtle);
}

.btn-case-study .arrow,
.btn-visit-project .arrow {
  font-size: var(--font-size-base);
  line-height: 1;
  transition: transform var(--transition-fast);
}

.btn-case-study:hover .arrow {
  transform: translateX(4px);
}

.btn-visit-project svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
}

/* Featured Projects Secondary (#2 + #3) */
.featured-projects-secondary {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-3xl);
}

.featured-project-secondary {
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  transition: all var(--transition-base);
}

.featured-project-secondary:hover {
  border-color: var(--color-border-accent);
  box-shadow: var(--shadow-accent);
  transform: translateY(-2px);
}

.featured-project-image-sm {
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: var(--spacing-md);
  aspect-ratio: 16 / 10;
  background-color: var(--color-bg-tertiary);
}

.featured-project-image-sm img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.featured-project-content-sm {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.featured-project-title-sm {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin: 0;
}

.featured-project-excerpt-sm {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin: 0;
}

.featured-project-tech-sm {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding-top: var(--spacing-sm);
}

.btn-case-study-sm {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent-primary);
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-family-base);
  padding: 4px 0;
  transition: gap var(--transition-fast), color var(--transition-fast);
  margin-top: auto;
}

.btn-case-study-sm:hover {
  color: var(--color-accent-hover);
  gap: 10px;
}

.btn-case-study-sm .arrow {
  font-size: var(--font-size-base);
  line-height: 1;
  transition: transform var(--transition-fast);
}

.btn-case-study-sm:hover .arrow {
  transform: translateX(4px);
}

/* Responsive for Featured Projects */
@media (max-width: 900px) {
  .featured-project-content {
    grid-template-columns: 1fr;
  }

  .featured-projects-secondary {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .featured-project-main {
    padding: var(--spacing-lg);
  }

  .featured-project-title {
    font-size: var(--font-size-lg);
  }

  .featured-project-actions {
    flex-direction: column;
  }

  .btn-case-study,
  .btn-visit-project {
    width: 100%;
    justify-content: center;
  }
}

/* ============================================
   Case Study Modal — Responsive
   ============================================ */

@media (max-width: 768px) {
  .case-study-main-title {
    font-size: var(--font-size-xl);
  }

  .case-study-section {
    padding: var(--spacing-md);
  }

  .case-study-section-title {
    font-size: var(--font-size-base);
    margin-left: -0.75rem;
    margin-right: -0.75rem;
    padding-left: 0.75rem;
    padding-right: 0.75rem;
  }

  .problem-solution-grid {
    grid-template-columns: 1fr;
  }

  .case-study-results {
    grid-template-columns: repeat(2, 1fr);
  }

  .case-study-links {
    flex-direction: column;
  }

  .case-study-link-btn {
    width: 100%;
    justify-content: center;
  }

  .featured-image-wrapper {
    border-radius: var(--radius-md);
  }
}

@media (max-width: 480px) {
  .case-study-main-title {
    font-size: var(--font-size-lg);
  }

  .case-study-category-badge {
    font-size: 10px;
    padding: 4px 10px;
  }

  .case-study-results {
    grid-template-columns: 1fr;
  }

  .result-metric {
    padding: var(--spacing-md);
  }

  .result-value {
    font-size: var(--font-size-xl);
  }

  .card-icon {
    width: 40px;
    height: 40px;
  }

  .card-icon svg {
    width: 20px;
    height: 20px;
  }

  .tech-badge-large {
    font-size: var(--font-size-xs);
    padding: 4px 10px;
  }
}