/**
 * SwanFlow Knowledge Base - Styles
 * Claude Skills Theme Factory aesthetic with SwanFlow colors
 */

/* ============================================================================
   KNOWLEDGE PAGE VARIABLES
   ============================================================================ */

:root {
  --knowledge-card-bg: rgba(255, 255, 255, 0.95);
  --knowledge-card-border: rgba(45, 139, 148, 0.15);
  --knowledge-hero-gradient: linear-gradient(135deg, #2D8B94 0%, #1a5a61 50%, #0d3a3f 100%);
  --knowledge-glow: rgba(45, 139, 148, 0.4);
  --code-bg: #1a1a2e;
  --code-text: #e0e0e0;
}

[data-theme="dark"] {
  --knowledge-card-bg: rgba(30, 42, 53, 0.95);
  --knowledge-card-border: rgba(74, 157, 165, 0.2);
  --knowledge-hero-gradient: linear-gradient(135deg, #1a5a61 0%, #0d3a3f 50%, #071a1c 100%);
  --knowledge-glow: rgba(74, 157, 165, 0.5);
  --code-bg: #0d0d1a;
  --code-text: #e8f0f2;
}

/* ============================================================================
   PAGE LAYOUT
   ============================================================================ */

.knowledge-page {
  min-height: 100vh;
  background: var(--bg);
}

/* ============================================================================
   HEADER (matching index.html header)
   ============================================================================ */

.knowledge-header {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.knowledge-header .header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1600px;
  margin: 0 auto;
}

.knowledge-header .brand-wrapper {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.knowledge-header .brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.knowledge-header .brand h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--primary);
  margin: 0;
  letter-spacing: -0.5px;
}

.knowledge-header .brand-logo {
  height: 40px;
  width: auto;
}

.knowledge-header .light-logo {
  display: block;
}

.knowledge-header .dark-logo {
  display: none;
}

[data-theme="dark"] .knowledge-header .light-logo {
  display: none;
}

[data-theme="dark"] .knowledge-header .dark-logo {
  display: block;
}

.knowledge-header .subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0;
}

.knowledge-header .header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.knowledge-header .header-nav-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.2s ease;
}

.knowledge-header .header-nav-btn:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

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

.knowledge-header .nav-icon {
  width: 18px;
  height: 18px;
}

.knowledge-header .theme-toggle {
  margin-left: 0.5rem;
}

/* Legacy nav styles (kept for mobile fallback) */
.knowledge-nav {
  display: none;
}

@media (max-width: 768px) {
  .knowledge-header {
    padding: 0.5rem 1rem;
  }

  .knowledge-header .nav-text {
    display: none;
  }

  .knowledge-header .header-nav-btn {
    padding: 0.5rem;
  }

  .knowledge-header .subtitle {
    display: none;
  }

  .knowledge-header .brand h1 {
    font-size: 1.25rem;
  }

  .knowledge-header .brand-logo {
    height: 30px;
  }
}

/* ============================================================================
   HERO SECTION
   ============================================================================ */

.knowledge-hero {
  position: relative;
  padding: 4rem 2rem;
  background: var(--knowledge-hero-gradient);
  overflow: hidden;
}

.hero-bg-pattern {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(232, 155, 95, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 60% 80%, rgba(255, 255, 255, 0.08) 0%, transparent 40%);
  animation: heroPatternFloat 20s ease-in-out infinite;
}

@keyframes heroPatternFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-10px) scale(1.02); }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  color: white;
}

.hero-badge {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1.5rem;
}

.knowledge-hero h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  letter-spacing: -1px;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
  font-size: 1.25rem;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto 2rem;
  line-height: 1.6;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}

.hero-stat .stat-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 2rem;
  font-weight: 700;
  color: white;
}

.hero-stat .stat-label {
  font-size: 0.8rem;
  opacity: 0.8;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ============================================================================
   QUICK NAVIGATION
   ============================================================================ */

.quick-nav {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  padding: 1.5rem 2rem;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.quick-nav-btn {
  padding: 0.6rem 1.25rem;
  background: transparent;
  border: 2px solid var(--border);
  border-radius: 50px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
}

.quick-nav-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(45, 139, 148, 0.05);
}

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

/* ============================================================================
   KNOWLEDGE GRID
   ============================================================================ */

.knowledge-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem;
}

.knowledge-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 1.5rem;
}

/* ============================================================================
   KNOWLEDGE CARDS
   ============================================================================ */

.knowledge-card {
  background: var(--knowledge-card-bg);
  border: 1px solid var(--knowledge-card-border);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.knowledge-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(45, 139, 148, 0.15);
  border-color: var(--primary);
}

/* Card Header */
.card-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: linear-gradient(135deg, rgba(45, 139, 148, 0.08) 0%, transparent 100%);
  border-bottom: 1px solid var(--knowledge-card-border);
  cursor: pointer;
}

.card-icon-wrapper {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  flex-shrink: 0;
}

.card-icon-wrapper .card-icon {
  width: 24px;
  height: 24px;
  stroke: white;
  color: white;
}

.card-icon-wrapper.algorithm {
  background: linear-gradient(135deg, #2D8B94, #4A9DA5);
}

.card-icon-wrapper.ml {
  background: linear-gradient(135deg, #E89B5F, #F4B17A);
}

.card-icon-wrapper.hardware {
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
}

.card-icon-wrapper.infrastructure {
  background: linear-gradient(135deg, #10b981, #34d399);
}

.card-title-group {
  flex: 1;
}

.card-title-group h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.25rem;
}

.card-badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  background: rgba(45, 139, 148, 0.1);
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.card-expand {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
}

.card-expand:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

.expand-icon {
  font-size: 1.25rem;
  font-weight: bold;
  transition: transform 0.3s;
}

.knowledge-card.expanded .expand-icon {
  transform: rotate(45deg);
}

/* Card Content */
.card-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s ease-out;
}

.knowledge-card.expanded .card-content {
  max-height: 2000px;
}

.content-section {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--knowledge-card-border);
}

.content-section:last-child {
  border-bottom: none;
}

.content-section h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.75rem;
}

.section-text {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.section-text.upcoming {
  color: var(--accent);
  font-weight: 600;
}

/* ============================================================================
   SPEC LISTS
   ============================================================================ */

.spec-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.spec-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.6rem 0.75rem;
  background: var(--bg);
  border-radius: 8px;
  font-size: 0.85rem;
}

.spec-label {
  color: var(--text-muted);
  font-weight: 500;
}

.spec-value {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  color: var(--text);
}

/* ============================================================================
   FEATURE LISTS
   ============================================================================ */

.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.feature-list li {
  position: relative;
  padding-left: 1.5rem;
  font-size: 0.9rem;
  color: var(--text);
  line-height: 1.5;
}

.feature-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: bold;
}

/* ============================================================================
   CODE BLOCKS
   ============================================================================ */

.code-block {
  background: var(--code-bg);
  border-radius: 8px;
  overflow: hidden;
  margin-top: 0.75rem;
}

.code-block pre {
  padding: 1rem;
  overflow-x: auto;
  font-size: 0.8rem;
  line-height: 1.6;
}

.code-block code {
  font-family: 'JetBrains Mono', monospace;
  color: var(--code-text);
}

/* ============================================================================
   STATUS LEGEND
   ============================================================================ */

.status-legend {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.status-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  background: var(--bg);
  border-radius: 6px;
  font-size: 0.8rem;
}

.status-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.status-item.flowing .status-dot { background: #10b981; }
.status-item.moderate .status-dot { background: #f59e0b; }
.status-item.heavy .status-dot { background: #ef4444; }
.status-item.gridlock .status-dot { background: #991b1b; }

.status-name {
  flex: 1;
  font-weight: 600;
  color: var(--text);
}

.status-speed {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ============================================================================
   PIPELINE DIAGRAM
   ============================================================================ */

.pipeline-diagram {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 0;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.pipeline-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  padding: 0.75rem 1rem;
  background: var(--bg);
  border-radius: 8px;
  border: 2px solid var(--border);
  min-width: 80px;
}

.step-number {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: white;
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 700;
}

.step-label {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text);
  text-align: center;
}

.pipeline-arrow {
  color: var(--primary);
  font-size: 1.25rem;
  font-weight: bold;
}

/* ============================================================================
   METRICS GRID
   ============================================================================ */

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.metric-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  padding: 1rem;
  background: linear-gradient(135deg, rgba(45, 139, 148, 0.1) 0%, rgba(45, 139, 148, 0.05) 100%);
  border-radius: 12px;
  border: 1px solid var(--knowledge-card-border);
}

.metric-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

.metric-label {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
}

/* ============================================================================
   POWER TABLE
   ============================================================================ */

.power-table {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.power-row {
  display: grid;
  grid-template-columns: 1fr 80px 80px;
  gap: 1rem;
  padding: 0.6rem 0.75rem;
  background: var(--bg);
  border-radius: 6px;
  font-size: 0.85rem;
}

.power-row.header {
  background: var(--primary);
  color: white;
  font-weight: 600;
}

.power-row span:not(:first-child) {
  font-family: 'JetBrains Mono', monospace;
  text-align: right;
}

/* ============================================================================
   FLOW DIAGRAM
   ============================================================================ */

.flow-diagram {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1.5rem 0;
  flex-wrap: wrap;
}

.flow-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 1.5rem;
  background: linear-gradient(135deg, rgba(45, 139, 148, 0.15) 0%, rgba(45, 139, 148, 0.05) 100%);
  border: 2px solid var(--primary);
  border-radius: 12px;
}

.flow-icon {
  font-size: 1.5rem;
}

.flow-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text);
  text-transform: uppercase;
}

.flow-connector {
  color: var(--primary);
  font-size: 1.5rem;
  font-weight: bold;
}

/* ============================================================================
   API TABLE
   ============================================================================ */

.api-table {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.api-row {
  display: grid;
  grid-template-columns: 60px 140px 1fr;
  gap: 0.75rem;
  padding: 0.6rem 0.75rem;
  background: var(--bg);
  border-radius: 6px;
  font-size: 0.8rem;
  align-items: center;
}

.api-row.header {
  background: var(--primary);
  color: white;
  font-weight: 600;
}

.method {
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  font-weight: 700;
  text-align: center;
}

.method.get {
  background: #10b981;
  color: white;
}

.method.post {
  background: #3b82f6;
  color: white;
}

.endpoint {
  font-family: 'JetBrains Mono', monospace;
  color: var(--primary);
}

/* ============================================================================
   CORRIDOR LIST
   ============================================================================ */

.corridor-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.corridor-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1rem;
  background: var(--bg);
  border-radius: 8px;
  border-left: 4px solid var(--primary);
}

.corridor-icon {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.corridor-icon.arterial {
  background: var(--primary);
}

.corridor-icon.freeway {
  background: var(--accent);
}

.corridor-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.corridor-info strong {
  font-size: 0.9rem;
  color: var(--text);
}

.corridor-info span {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.corridor-count {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  padding: 0.25rem 0.75rem;
  background: rgba(45, 139, 148, 0.1);
  border-radius: 20px;
}

/* ============================================================================
   MONITORING GRID
   ============================================================================ */

.monitoring-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.monitor-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  padding: 1rem;
  background: var(--bg);
  border-radius: 8px;
  text-align: center;
}

.monitor-icon {
  font-size: 1.5rem;
}

.monitor-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
}

.monitor-status {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--primary);
}

/* ============================================================================
   FOOTER
   ============================================================================ */

.knowledge-footer {
  background: var(--card-bg);
  border-top: 1px solid var(--border);
  padding: 3rem 2rem;
  margin-top: 3rem;
}

.footer-content {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.footer-text {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 1.5rem;
}

.footer-links a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--primary-dark);
}

.footer-copyright {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ============================================================================
   RESPONSIVE DESIGN
   ============================================================================ */

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

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

  .status-legend {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .knowledge-nav {
    padding: 0.75rem 1rem;
  }

  .nav-back span:last-child {
    display: none;
  }

  .nav-brand {
    font-size: 1rem;
  }

  .knowledge-hero {
    padding: 2.5rem 1rem;
  }

  .knowledge-hero h1 {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .hero-stats {
    gap: 1.5rem;
    flex-wrap: wrap;
  }

  .hero-stat .stat-value {
    font-size: 1.5rem;
  }

  .quick-nav {
    padding: 1rem;
    gap: 0.5rem;
    overflow-x: auto;
    justify-content: flex-start;
    -webkit-overflow-scrolling: touch;
  }

  .quick-nav-btn {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
    white-space: nowrap;
  }

  .knowledge-container {
    padding: 1rem;
  }

  .knowledge-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .card-header {
    padding: 1rem;
  }

  .card-icon-wrapper {
    width: 40px;
    height: 40px;
    font-size: 1.25rem;
  }

  .card-title-group h2 {
    font-size: 1.1rem;
  }

  .content-section {
    padding: 1rem;
  }

  .pipeline-diagram,
  .flow-diagram {
    flex-direction: column;
  }

  .pipeline-arrow,
  .flow-connector {
    transform: rotate(90deg);
  }

  .api-row {
    grid-template-columns: 50px 1fr;
    gap: 0.5rem;
  }

  .api-row span:last-child {
    grid-column: 1 / -1;
    font-size: 0.75rem;
  }

  .power-row {
    grid-template-columns: 1fr 60px 60px;
    font-size: 0.75rem;
  }

  .footer-links {
    flex-direction: column;
    gap: 1rem;
  }
}

@media (max-width: 480px) {
  .knowledge-hero h1 {
    font-size: 1.75rem;
  }

  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
  }

  .metric-card {
    padding: 0.75rem;
  }

  .metric-value {
    font-size: 1.25rem;
  }

  .monitoring-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================================================
   ANIMATIONS
   ============================================================================ */

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.knowledge-card {
  animation: fadeIn 0.5s ease-out forwards;
}

.knowledge-card:nth-child(1) { animation-delay: 0.1s; }
.knowledge-card:nth-child(2) { animation-delay: 0.2s; }
.knowledge-card:nth-child(3) { animation-delay: 0.3s; }
.knowledge-card:nth-child(4) { animation-delay: 0.4s; }
.knowledge-card:nth-child(5) { animation-delay: 0.5s; }
.knowledge-card:nth-child(6) { animation-delay: 0.6s; }

/* ============================================================================
   HIDDEN STATE FOR FILTERING
   ============================================================================ */

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