/* ============================================================================
   🎨 DESIGN SYSTEM - Roblox Arabic Hub
   Comprehensive UI/UX System based on requirements
   ============================================================================ */

/* ============================================================================
   1. CSS VARIABLES - Design Tokens
   ============================================================================ */
:root {
  /* Spacing Scale */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 24px;
  --space-2xl: 32px;
  --space-3xl: 48px;
  --space-4xl: 64px;

  /* Typography Scale */
  --text-xs: 11px;
  --text-sm: 12px;
  --text-base: 14px;
  --text-lg: 16px;
  --text-xl: 20px;
  --text-2xl: 24px;
  --text-3xl: 28px;
  --text-4xl: 36px;
  --text-5xl: 48px;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.15);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.2);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.25);
  --shadow-glow: 0 0 20px rgba(46, 174, 209, 0.3);
  --shadow-glow-strong: 0 0 40px rgba(46, 174, 209, 0.5);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  --transition-spring: 400ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Container */
  --container-max: 1200px;
  --container-padding: 24px;
}

@media (max-width: 768px) {
  :root {
    --container-padding: 16px;
    --text-4xl: 28px;
    --text-5xl: 36px;
  }
}

/* ============================================================================
   2. LAYOUT - Container & Grid System
   ============================================================================ */

/* Main Container */
.ds-container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.ds-container-lg {
  max-width: 1400px;
}

.ds-container-sm {
  max-width: 800px;
}

/* Grid System */
.ds-grid {
  display: grid;
  gap: var(--space-xl);
}

.ds-grid-2 { grid-template-columns: repeat(2, 1fr); }
.ds-grid-3 { grid-template-columns: repeat(3, 1fr); }
.ds-grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .ds-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .ds-grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .ds-grid-4,
  .ds-grid-3,
  .ds-grid-2 { grid-template-columns: 1fr; }
}

/* Auto Grid */
.ds-grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-xl);
}

/* Flex Utilities */
.ds-flex { display: flex; }
.ds-flex-col { flex-direction: column; }
.ds-flex-wrap { flex-wrap: wrap; }
.ds-items-center { align-items: center; }
.ds-items-start { align-items: flex-start; }
.ds-justify-center { justify-content: center; }
.ds-justify-between { justify-content: space-between; }
.ds-gap-sm { gap: var(--space-sm); }
.ds-gap-md { gap: var(--space-md); }
.ds-gap-lg { gap: var(--space-lg); }
.ds-gap-xl { gap: var(--space-xl); }

/* ============================================================================
   3. PAGE HEADER Component
   ============================================================================ */
.ds-page-header {
  padding: var(--space-4xl) 0 var(--space-3xl);
  text-align: center;
  position: relative;
}

.ds-page-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.3) 0%, transparent 100%);
  pointer-events: none;
}

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

.ds-page-title {
  font-size: var(--text-4xl);
  font-weight: 800;
  color: var(--text);
  margin-bottom: var(--space-md);
  line-height: 1.2;
}

.ds-page-subtitle {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto var(--space-xl);
  line-height: 1.6;
}

.ds-page-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================================================
   4. SECTION HEADER Component
   ============================================================================ */
.ds-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-xl);
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.ds-section-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.ds-section-title .icon {
  font-size: var(--text-xl);
}

.ds-section-desc {
  font-size: var(--text-base);
  color: var(--text-secondary);
  margin-top: var(--space-xs);
}

.ds-section-actions {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
}

.ds-view-all {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--primary);
  text-decoration: none;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  transition: var(--transition-base);
}

.ds-view-all:hover {
  background: rgba(46, 174, 209, 0.1);
}

/* ============================================================================
   5. GLASS CARD Component
   ============================================================================ */
.ds-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition-base);
}

.ds-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  border-color: rgba(46, 174, 209, 0.3);
}

.ds-card-body {
  padding: var(--space-xl);
}

.ds-card-sm .ds-card-body {
  padding: var(--space-lg);
}

/* Card with Image */
.ds-card-media {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}

.ds-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

.ds-card:hover .ds-card-media img {
  transform: scale(1.05);
}

.ds-card-badge {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--text-xs);
  font-weight: 600;
  background: rgba(0,0,0,0.7);
  color: white;
  border-radius: var(--radius-sm);
  backdrop-filter: blur(10px);
}

/* ============================================================================
   6. STATS CARD Component
   ============================================================================ */
.ds-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

@media (max-width: 900px) {
  .ds-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .ds-stats-grid {
    grid-template-columns: 1fr;
  }
}

.ds-stat-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
}

.ds-stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: var(--transition-base);
}

.ds-stat-card:hover {
  transform: translateY(-4px);
  border-color: rgba(46, 174, 209, 0.3);
}

.ds-stat-card:hover::before {
  opacity: 1;
}

.ds-stat-icon {
  font-size: 28px;
  margin-bottom: var(--space-md);
  display: block;
}

.ds-stat-value {
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--text);
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.ds-stat-value.counting {
  color: var(--primary);
}

.ds-stat-label {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  font-weight: 500;
}

.ds-stat-change {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  font-size: var(--text-xs);
  margin-top: var(--space-sm);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

.ds-stat-change.up {
  color: #22c55e;
  background: rgba(34, 197, 94, 0.1);
}

.ds-stat-change.down {
  color: #ef4444;
  background: rgba(239, 68, 68, 0.1);
}

/* ============================================================================
   7. CONTENT CARD Component (News/Works/Scammers)
   ============================================================================ */
.ds-content-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition-base);
  display: flex;
  flex-direction: column;
}

.ds-content-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  border-color: rgba(46, 174, 209, 0.3);
}

.ds-content-media {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: rgba(0,0,0,0.2);
}

.ds-content-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

.ds-content-card:hover .ds-content-media img {
  transform: scale(1.05);
}

.ds-content-category {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--text-xs);
  font-weight: 600;
  background: rgba(0,0,0,0.8);
  color: white;
  border-radius: var(--radius-sm);
  backdrop-filter: blur(10px);
}

.ds-content-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(0,0,0,0.8) 0%, transparent 50%);
  opacity: 0;
  transition: var(--transition-base);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: var(--space-lg);
}

.ds-content-card:hover .ds-content-overlay {
  opacity: 1;
}

.ds-content-actions {
  display: flex;
  gap: var(--space-sm);
}

.ds-content-body {
  padding: var(--space-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.ds-content-title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text);
  margin-bottom: var(--space-sm);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.ds-content-excerpt {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-md);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.ds-content-meta {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-top: auto;
}

.ds-content-meta span {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

/* ============================================================================
   8. FEATURED CARD Component (Large)
   ============================================================================ */
.ds-featured-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 350px;
}

@media (max-width: 900px) {
  .ds-featured-card {
    grid-template-columns: 1fr;
  }
}

.ds-featured-media {
  position: relative;
  overflow: hidden;
  min-height: 250px;
}

.ds-featured-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ds-featured-badge {
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-sm);
  font-weight: 600;
  background: var(--primary);
  color: white;
  border-radius: var(--radius-md);
}

.ds-featured-body {
  padding: var(--space-2xl);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.ds-featured-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--text);
  margin-bottom: var(--space-md);
  line-height: 1.3;
}

.ds-featured-excerpt {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-xl);
}

.ds-featured-meta {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin-bottom: var(--space-xl);
}

/* ============================================================================
   9. TABS Component
   ============================================================================ */
.ds-tabs {
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-xs);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  scrollbar-width: none;
}

.ds-tabs::-webkit-scrollbar {
  display: none;
}

.ds-tab {
  flex-shrink: 0;
  padding: var(--space-sm) var(--space-lg);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-base);
  white-space: nowrap;
}

.ds-tab:hover {
  color: var(--text);
  background: rgba(255,255,255,0.05);
}

.ds-tab.active {
  color: white;
  background: var(--primary);
  box-shadow: var(--shadow-sm);
}

/* ============================================================================
   10. SEARCH BAR Component
   ============================================================================ */
.ds-search-container {
  position: relative;
  max-width: 400px;
  width: 100%;
}

.ds-search-input {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  padding-right: 44px;
  font-size: var(--text-base);
  color: var(--text);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  outline: none;
  transition: var(--transition-base);
}

.ds-search-input::placeholder {
  color: var(--text-muted);
}

.ds-search-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(46, 174, 209, 0.1);
}

.ds-search-icon {
  position: absolute;
  right: var(--space-lg);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

/* ============================================================================
   11. FILTER CHIPS Component
   ============================================================================ */
.ds-filters {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.ds-filter-chip {
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition-base);
  white-space: nowrap;
}

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

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

/* ============================================================================
   12. STATES - Empty, Loading, Error
   ============================================================================ */

/* Empty State */
.ds-empty-state {
  text-align: center;
  padding: var(--space-4xl) var(--space-xl);
  background: var(--glass-bg);
  border: 1px dashed var(--glass-border);
  border-radius: var(--radius-xl);
}

.ds-empty-icon {
  font-size: 64px;
  margin-bottom: var(--space-lg);
  opacity: 0.5;
}

.ds-empty-title {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--text);
  margin-bottom: var(--space-sm);
}

.ds-empty-desc {
  font-size: var(--text-base);
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

/* Loading State - Skeleton */
.ds-skeleton {
  background: linear-gradient(90deg, 
    var(--glass-bg) 25%, 
    rgba(255,255,255,0.05) 50%, 
    var(--glass-bg) 75%
  );
  background-size: 200% 100%;
  animation: ds-shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

@keyframes ds-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.ds-skeleton-text {
  height: 16px;
  margin-bottom: var(--space-sm);
}

.ds-skeleton-title {
  height: 24px;
  width: 70%;
  margin-bottom: var(--space-md);
}

.ds-skeleton-image {
  aspect-ratio: 16/10;
  width: 100%;
}

.ds-skeleton-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
}

/* Loading Spinner */
.ds-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--glass-border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: ds-spin 0.8s linear infinite;
}

@keyframes ds-spin {
  to { transform: rotate(360deg); }
}

.ds-loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-4xl);
  gap: var(--space-lg);
}

.ds-loading-text {
  font-size: var(--text-base);
  color: var(--text-secondary);
}

/* Error State */
.ds-error-state {
  text-align: center;
  padding: var(--space-3xl);
  background: rgba(239, 68, 68, 0.05);
  border: 1px solid rgba(239, 68, 68, 0.2);
  border-radius: var(--radius-xl);
}

.ds-error-icon {
  font-size: 48px;
  margin-bottom: var(--space-md);
}

.ds-error-title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: #ef4444;
  margin-bottom: var(--space-sm);
}

.ds-error-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
}

/* ============================================================================
   13. BUTTONS
   ============================================================================ */
.ds-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.ds-btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
  box-shadow: var(--shadow-md);
}

.ds-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.ds-btn-secondary {
  background: var(--glass-bg);
  color: var(--text);
  border: 1px solid var(--glass-border);
}

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

.ds-btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

.ds-btn-ghost:hover {
  background: rgba(255,255,255,0.05);
  color: var(--text);
}

.ds-btn-sm {
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-xs);
}

.ds-btn-lg {
  padding: var(--space-lg) var(--space-2xl);
  font-size: var(--text-base);
}

.ds-btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: var(--radius-md);
}

/* ============================================================================
   14. BADGE Component
   ============================================================================ */
.ds-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-sm);
}

.ds-badge-primary {
  background: rgba(46, 174, 209, 0.15);
  color: var(--primary);
}

.ds-badge-success {
  background: rgba(34, 197, 94, 0.15);
  color: #22c55e;
}

.ds-badge-warning {
  background: rgba(245, 158, 11, 0.15);
  color: #f59e0b;
}

.ds-badge-danger {
  background: rgba(239, 68, 68, 0.15);
  color: #ef4444;
}

/* ============================================================================
   15. AVATAR Component
   ============================================================================ */
.ds-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--glass-border);
}

.ds-avatar-sm { width: 32px; height: 32px; }
.ds-avatar-lg { width: 64px; height: 64px; }
.ds-avatar-xl { width: 96px; height: 96px; }

.ds-avatar-group {
  display: flex;
}

.ds-avatar-group .ds-avatar {
  margin-right: -12px;
  border: 2px solid var(--bg);
}

/* ============================================================================
   16. TOOLTIP
   ============================================================================ */
[data-tooltip] {
  position: relative;
}

[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-xs);
  color: white;
  background: rgba(0,0,0,0.9);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-fast);
  z-index: 1000;
  pointer-events: none;
}

[data-tooltip]:hover::after {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(-4px);
}

/* ============================================================================
   17. ANIMATIONS
   ============================================================================ */

/* Fade In Up */
.ds-animate-in {
  animation: ds-fadeInUp 0.5s ease forwards;
}

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

/* Stagger children */
.ds-stagger > * {
  opacity: 0;
  animation: ds-fadeInUp 0.5s ease forwards;
}

.ds-stagger > *:nth-child(1) { animation-delay: 0.05s; }
.ds-stagger > *:nth-child(2) { animation-delay: 0.1s; }
.ds-stagger > *:nth-child(3) { animation-delay: 0.15s; }
.ds-stagger > *:nth-child(4) { animation-delay: 0.2s; }
.ds-stagger > *:nth-child(5) { animation-delay: 0.25s; }
.ds-stagger > *:nth-child(6) { animation-delay: 0.3s; }

/* Count Up animation */
.ds-count-up {
  display: inline-block;
}

/* Pulse */
.ds-pulse {
  animation: ds-pulse 2s infinite;
}

@keyframes ds-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* ============================================================================
   18. UTILITIES
   ============================================================================ */
.ds-text-center { text-align: center; }
.ds-text-right { text-align: right; }
.ds-text-left { text-align: left; }

.ds-text-primary { color: var(--primary); }
.ds-text-muted { color: var(--text-muted); }
.ds-text-success { color: #22c55e; }
.ds-text-danger { color: #ef4444; }

.ds-mt-sm { margin-top: var(--space-sm); }
.ds-mt-md { margin-top: var(--space-md); }
.ds-mt-lg { margin-top: var(--space-lg); }
.ds-mt-xl { margin-top: var(--space-xl); }

.ds-mb-sm { margin-bottom: var(--space-sm); }
.ds-mb-md { margin-bottom: var(--space-md); }
.ds-mb-lg { margin-bottom: var(--space-lg); }
.ds-mb-xl { margin-bottom: var(--space-xl); }

.ds-p-sm { padding: var(--space-sm); }
.ds-p-md { padding: var(--space-md); }
.ds-p-lg { padding: var(--space-lg); }
.ds-p-xl { padding: var(--space-xl); }

.ds-rounded { border-radius: var(--radius-md); }
.ds-rounded-lg { border-radius: var(--radius-lg); }
.ds-rounded-full { border-radius: var(--radius-full); }

.ds-shadow { box-shadow: var(--shadow-md); }
.ds-shadow-lg { box-shadow: var(--shadow-lg); }
.ds-shadow-glow { box-shadow: var(--shadow-glow); }

.ds-hidden { display: none !important; }
.ds-visible { display: block !important; }

@media (max-width: 768px) {
  .ds-hide-mobile { display: none !important; }
}

@media (min-width: 769px) {
  .ds-hide-desktop { display: none !important; }
}

/* ============================================================================
   19. DARK OVERLAY for Background Readability
   ============================================================================ */
.ds-overlay {
  position: relative;
}

.ds-overlay::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(7, 17, 19, 0.6);
  pointer-events: none;
  z-index: 0;
}

.ds-overlay > * {
  position: relative;
  z-index: 1;
}

/* Section with improved readability */
.ds-section {
  padding: var(--space-3xl) 0;
  position: relative;
}

.ds-section-alt {
  background: rgba(0,0,0,0.2);
}