/* ============================================
   Open Source Showcase Styles
   ============================================ */

.open-source-showcase {
  background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-primary) 100%);
  padding: var(--spacing-3xl) 0;
  margin: var(--spacing-3xl) 0;
  border-radius: var(--border-radius-lg);
  position: relative;
  overflow: hidden;
}

.open-source-showcase::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(13, 110, 253, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  animation: pulse-glow 4s ease-in-out infinite;
  pointer-events: none;
}

@keyframes pulse-glow {
  0%, 100% {
    transform: scale(1);
    opacity: 0.5;
  }
  50% {
    transform: scale(1.2);
    opacity: 0.8;
  }
}

@keyframes pulse-dot {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(13, 110, 253, 0.7);
  }
  50% {
    transform: scale(1.1);
    box-shadow: 0 0 0 10px rgba(13, 110, 253, 0);
  }
}

.showcase-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.showcase-text {
  padding: var(--spacing-xl);
}

.showcase-visual {
  padding: var(--spacing-xl);
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.stat-item {
  text-align: center;
  padding: var(--spacing-lg);
  background: var(--color-bg-primary);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 16px var(--color-shadow);
  border-color: var(--color-accent);
}

.stat-number {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: var(--spacing-xs);
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: var(--font-weight-medium);
}

/* Interactive Timeline */
.contribution-visualization {
  margin: var(--spacing-3xl) 0;
  padding: var(--spacing-2xl);
  background: var(--color-bg-primary);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--color-border);
}

.viz-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.timeline-interactive {
  position: relative;
  padding: var(--spacing-2xl) 0;
}

.timeline-track {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-xl) 0;
}

.timeline-track::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, 
    var(--color-accent) 0%, 
    var(--color-accent-hover) 50%, 
    var(--color-accent) 100%
  );
  transform: translateY(-50%);
  z-index: 0;
  border-radius: 2px;
}

.timeline-marker {
  position: relative;
  z-index: 1;
  cursor: pointer;
  transition: all var(--transition-slow);
}

.marker-dot {
  width: 20px;
  height: 20px;
  background: var(--color-bg-primary);
  border: 4px solid var(--color-accent);
  border-radius: 50%;
  margin: 0 auto;
  transition: all var(--transition-slow);
  position: relative;
}

.marker-dot::after {
  content: '';
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  background: var(--color-accent);
  opacity: 0;
  transform: scale(0);
  transition: all var(--transition-slow);
}

.timeline-marker:hover .marker-dot,
.timeline-marker.active .marker-dot {
  transform: scale(1.3);
  border-color: var(--color-accent-hover);
  box-shadow: 0 0 20px rgba(13, 110, 253, 0.5);
}

.timeline-marker:hover .marker-dot::after,
.timeline-marker.active .marker-dot::after {
  opacity: 0.3;
  transform: scale(1);
}

.marker-content {
  position: absolute;
  top: 40px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  min-width: 180px;
  text-align: center;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(-10px);
  transition: all var(--transition-slow);
  box-shadow: 0 8px 24px var(--color-shadow);
  pointer-events: none;
}

.timeline-marker:hover .marker-content,
.timeline-marker.active .marker-content {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.marker-year {
  font-size: var(--font-size-sm);
  color: var(--color-accent);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-xs);
}

.marker-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.marker-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* 3D Community Cards - The "OMG" Element */
.community-showcase {
  margin-top: var(--spacing-3xl);
}

.community-grid-3d {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  perspective: 1000px;
}

.community-card-3d {
  height: 300px;
  perspective: 1000px;
  cursor: pointer;
}

.card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform var(--transition-slow);
  transform-style: preserve-3d;
}

.community-card-3d:hover .card-inner {
  transform: rotateY(180deg);
}

.card-front,
.card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--color-border);
  background: var(--color-bg-primary);
  box-shadow: 0 4px 12px var(--color-shadow);
  transition: all var(--transition-slow);
}

.card-back {
  transform: rotateY(180deg);
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-hover));
  color: white;
  border-color: var(--color-accent);
}

.community-icon-large {
  width: 80px;
  height: 80px;
  margin-bottom: var(--spacing-lg);
  color: var(--color-accent);
  transition: all var(--transition-slow);
}

.community-card-3d:hover .community-icon-large {
  transform: scale(1.1) rotate(10deg);
}

.card-back .community-icon-large {
  color: white;
}

.community-card-3d h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

.card-back h3 {
  color: white;
}

.card-role {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
  font-weight: var(--font-weight-medium);
}

.card-back .card-role {
  color: rgba(255, 255, 255, 0.9);
}

.card-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  text-align: center;
  margin-bottom: var(--spacing-md);
}

.card-back .card-desc {
  color: rgba(255, 255, 255, 0.9);
}

.card-stats {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-top: auto;
}

.card-back .card-stats {
  color: rgba(255, 255, 255, 0.8);
}

.community-card {
  background: var(--color-bg-primary);
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
  transition: all var(--transition-base);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.community-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-hover));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.community-card:hover::before {
  transform: scaleX(1);
}

.community-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 24px var(--color-shadow-hover);
  border-color: var(--color-accent);
}

.community-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto var(--spacing-md);
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-hover));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  transition: transform var(--transition-base);
}

.community-card:hover .community-icon {
  transform: scale(1.1) rotate(5deg);
}

.community-icon svg {
  width: 32px;
  height: 32px;
}

.community-card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-xs);
  color: var(--color-text-primary);
  font-weight: 600;
}

.community-card p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

.community-badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--color-bg-secondary);
  color: var(--color-accent);
  border-radius: 1rem;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 1px solid var(--color-accent);
}

.community-card:hover .community-badge {
  background: var(--color-accent);
  color: white;
}

/* Responsive Design */
@media (max-width: 968px) {
  .showcase-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }
  
  .showcase-text {
    text-align: center;
  }
  
  .showcase-text .section-title {
    text-align: center;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    max-width: 500px;
    margin: var(--spacing-xl) auto 0;
  }
  
  .timeline-track {
    flex-direction: column;
    gap: var(--spacing-xl);
  }
  
  .timeline-track::before {
    width: 3px;
    height: 100%;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(180deg, 
      var(--color-accent) 0%, 
      var(--color-accent-hover) 50%, 
      var(--color-accent) 100%
    );
  }
  
  .marker-content {
    left: 60px;
    top: 50%;
    transform: translateY(-50%);
  }
  
  .timeline-marker:hover .marker-content,
  .timeline-marker.active .marker-content {
    transform: translateY(-50%);
  }
  
  .community-grid-3d {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .community-grid-3d {
    grid-template-columns: 1fr;
  }
  
  .open-source-showcase {
    padding: var(--spacing-xl) 0;
  }
  
  .timeline-marker {
    width: 100%;
  }
  
  .marker-content {
    left: 50%;
    right: auto;
    width: calc(100vw - 4rem);
    max-width: 300px;
  }
}