/* Getting Started Page - Blood Chain Explainer */
/* Note: Header styles and .container inherited from globals.css and page.css */

/* Main Content */
.main {
  flex: 1;
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

/* Mission Statement */
.mission-statement {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: var(--glass-blur);
  border: 2px solid var(--border);
  border-radius: var(--glass-radius);
  padding: var(--spacing-xl);
  box-shadow: var(--glass-shadow);
  text-align: center;
  position: relative;
  overflow: hidden;
  margin-bottom: var(--spacing-xl);
}

.mission-statement::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #ff4444, #ff8844, #ffaa44);
  opacity: 0.8;
}

.mission-statement h1 {
  color: var(--text);
  font-size: 2.5rem;
  font-weight: 900;
  margin: 0 0 var(--spacing-md);
  text-shadow: 0 0 8px rgba(0, 0, 0, 0.484);
  line-height: 1.2;
}

.mission-statement p {
  color: var(--text);
  font-size: 1.3rem;
  line-height: 1.6;
  margin: 0;
  text-shadow: 0 0 4px rgba(0, 0, 0, 0.7);
  opacity: 0.9;
}

/* Hero Decision Chain Section */
.hero-decision-chain {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: var(--glass-blur);
  border: 2px solid var(--border);
  border-radius: var(--glass-radius);
  padding: var(--spacing-xl);
  box-shadow: var(--glass-shadow);
  position: relative;
  margin-bottom: var(--spacing-xl);
}

.hero-decision-chain .chain-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.hero-decision-chain .chain-header h2 {
  color: var(--text);
  font-size: 2.2rem;
  font-weight: 900;
  margin: 0 0 var(--spacing-md);
  text-shadow: 0 0 6px rgba(255, 255, 255, 0.5);
}

.hero-decision-chain .chain-header p {
  color: var(--text);
  font-size: 1.2rem;
  line-height: 1.5;
  margin: 0;
  opacity: 0.9;
}

.diagonal-chain-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 500px;
  position: relative;
}

#diagonal-chain-viz {
  width: 100%;
  max-width: 1000px;
  height: 500px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border);
  border-radius: var(--glass-radius);
  padding: var(--spacing-lg);
  overflow: visible;
  position: relative;
  -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: blur(10px);
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.chain-footer {
  text-align: center;
  margin-top: var(--spacing-lg);
  color: var(--text);
  font-size: 1rem;
  opacity: 0.8;
}

/* Chain Link Hover Tooltip */
.chain-tooltip {
  position: absolute;
  background: rgba(255, 255, 255, 0.95);
  color: #333;
  padding: var(--spacing-md);
  border-radius: var(--glass-radius);
  border: 2px solid rgb(252, 2, 2);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: blur(15px);
  z-index: 1000;
  max-width: 300px;
  font-size: 14px;
  line-height: 1.4;
  pointer-events: none;
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.3s ease;
}

.chain-tooltip.show {
  opacity: 1;
  transform: translateY(0);
}

.chain-tooltip h4 {
  margin: 0 0 8px 0;
  color: rgb(243, 5, 5);
  font-weight: 900;
}

/* Stage Selector */
.stage-selector {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: var(--glass-blur);
  border: 2px solid var(--border);
  border-radius: var(--glass-radius);
  padding: var(--spacing-xl);
  box-shadow: var(--glass-shadow);
  margin-bottom: var(--spacing-xl);
}

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

.selector-header h2 {
  color: var(--text);
  font-size: 2rem;
  font-weight: 900;
  margin: 0;
  text-shadow: 0 0 6px rgba(255, 255, 255, 0.5);
}

.stage-buttons {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  max-width: 1000px;
  margin: 0 auto;
}

.stage-btn {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: var(--glass-blur);
  border: 2px solid #000000;
  border-radius: var(--glass-radius);
  padding: var(--spacing-xl);
  box-shadow: var(--glass-shadow);
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: center;
  position: relative;
  overflow: hidden;
  text-decoration: none;
  display: block;
}

.stage-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: #f50404;
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.stage-btn:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(255, 68, 68, 0.4);
  background: rgba(255, 68, 68, 0.15);
  border-color: #ff6666;
}

.stage-btn:hover::before {
  transform: scaleX(1);
}

.stage-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

.stage-title {
  color: var(--text);
  font-size: 1.5rem;
  font-weight: 900;
  margin-bottom: var(--spacing-sm);
  text-shadow: 0 0 4px rgba(255, 255, 255, 0.5);
}

.stage-subtitle {
  color: var(--text);
  font-size: 1rem;
  opacity: 0.8;
  line-height: 1.4;
}

/* Stage Panel */
.stage-panel {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: var(--glass-blur);
  border: 2px solid var(--border);
  border-radius: var(--glass-radius);
  padding: var(--spacing-xl);
  box-shadow: var(--glass-shadow);
  margin-bottom: var(--spacing-xl);
  animation: slideInFromBottom 0.4s ease-out;
}

@keyframes slideInFromBottom {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 2px solid var(--border);
}

.panel-header h3 {
  color: var(--text);
  font-size: 1.8rem;
  font-weight: 900;
  margin: 0;
  text-shadow: 0 0 6px rgba(255, 255, 255, 0.5);
}

.close-panel-btn {
  background: none;
  border: none;
  color: var(--text);
  font-size: 2rem;
  font-weight: 900;
  cursor: pointer;
  transition: all 0.3s ease;
  line-height: 1;
}

.close-panel-btn:hover {
  color: #fc1d1d;
  transform: scale(1.2);
}

.threat-assessment {
  background: rgba(255, 107, 107, 0.1);
  border: 1px solid rgba(255, 107, 107, 0.3);
  border-radius: var(--glass-radius);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

.chains-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-lg);
}

.chain-summary-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: var(--glass-radius);
  padding: var(--spacing-lg);
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.chain-summary-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.chain-summary-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.3);
  background: rgba(255, 255, 255, 0.1);
}

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

.panel-actions {
  text-align: center;
  margin-top: var(--spacing-xl);
}

.back-btn {
  background: var(--glass-bg);
  border: 2px solid var(--border);
  border-radius: var(--glass-radius);
  color: var(--text);
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: var(--glass-blur);
}

.back-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
}

/* Full Chain View */
.full-chain-view {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: var(--glass-blur);
  border: 2px solid var(--border);
  border-radius: var(--glass-radius);
  padding: var(--spacing-xl);
  box-shadow: var(--glass-shadow);
  margin-bottom: var(--spacing-xl);
  animation: slideInFromRight 0.4s ease-out;
}

@keyframes slideInFromRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.full-chain-view .chain-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 2px solid var(--border);
}

.full-chain-view .chain-header h2 {
  color: var(--text);
  font-size: 2rem;
  font-weight: 900;
  margin: 0;
  text-shadow: 0 0 6px rgba(255, 255, 255, 0.5);
}

.chain-controls {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

.back-to-selector-btn,
.back-to-bloodline-btn,
.close-chain-btn {
  background: var(--glass-bg);
  border: 2px solid var(--border);
  border-radius: var(--glass-radius);
  color: var(--text);
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: var(--glass-blur);
}

.close-chain-btn {
  background: none;
  border: none;
  font-size: 1.5rem;
  padding: var(--spacing-xs);
}

.back-to-selector-btn:hover,
.back-to-bloodline-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
}

.close-chain-btn:hover {
  color: #ff6b6b;
  transform: scale(1.2);
}

.chain-visualization {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: var(--glass-radius);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  min-height: 400px;
  position: relative;
}

#full-chain-viz {
  width: 100%;
  height: 400px;
  overflow: visible;
}

.chain-info-panel {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.info-section {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: var(--glass-radius);
  padding: var(--spacing-lg);
}

.info-section h4 {
  color: var(--text);
  font-size: 1.2rem;
  font-weight: 900;
  margin: 0 0 var(--spacing-md);
  text-shadow: 0 0 4px rgba(255, 255, 255, 0.5);
}

.risk-level {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.risk-level.high {
  background: rgba(255, 107, 107, 0.2);
  color: #ff6b6b;
  border: 1px solid rgba(255, 107, 107, 0.5);
}

.risk-level.medium {
  background: rgba(255, 183, 77, 0.2);
  color: #ffb74d;
  border: 1px solid rgba(255, 183, 77, 0.5);
}

.risk-level.low {
  background: rgba(129, 212, 250, 0.2);
  color: #81d4fa;
  border: 1px solid rgba(129, 212, 250, 0.5);
}

/* Decision Chain Section */
.decision-chain-section {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: var(--glass-blur);
  border: 2px solid var(--border);
  border-radius: var(--glass-radius);
  padding: var(--spacing-xl);
  box-shadow: var(--glass-shadow);
  position: relative;
}

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

.chain-header h2 {
  color: var(--text);
  font-size: 2rem;
  font-weight: 900;
  margin: 0 0 var(--spacing-md);
  text-shadow: 0 0 6px rgba(255, 255, 255, 0.5);
}

.chain-description {
  color: var(--text);
  font-size: 1.1rem;
  line-height: 1.5;
  margin: 0;
  opacity: 0.9;
}

.chain-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-lg);
}

#decision-chain-viz {
  width: 100%;
  max-width: 1400px; /* Increased to 1400px for better label spacing */
  max-height: 500px; /* Increased to 500px for better visibility */
  height: 220px; /* Increased from 180px */
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: var(--glass-radius);
  padding: var(--spacing-xl);
  overflow: hidden;
  position: relative;
  -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: blur(10px);
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
  margin: 0 auto; /* Center the visualization */
}

#decision-chain-viz svg {
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.2));
}

.chain-instructions {
  text-align: center;
  color: var(--text);
  font-size: 1rem;
  opacity: 0.8;
}

/* Enhanced Chain Node Styles */
.node-container {
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.node-container:hover {
  filter: brightness(1.1) drop-shadow(0 8px 16px rgba(0, 0, 0, 0.4));
}

.node-label-group {
  pointer-events: none;
}

/* Enhanced Chain Edge Styles */
.edges line {
  transition: all 0.3s ease;
}

.edge-label-group {
  pointer-events: none;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.5));
}

/* Chain Stage Visualization Styles */
.chain-stage-viz {
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.2));
  transition: all 0.3s ease;
}

.chain-node-group {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.chain-node-group:hover {
  filter: brightness(1.2) drop-shadow(0 8px 16px rgba(0, 0, 0, 0.4));
}

/* Chain Tooltip Styles */
.chain-tooltip {
  font-family: "Roboto", "Orbitron", sans-serif;
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.5),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
  -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: blur(15px);
  animation: tooltipFadeIn 0.2s ease-out;
}

@keyframes tooltipFadeIn {
  from {
    opacity: 0;
    transform: translateY(10px) scale(0.9);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Chains Directory */
.chains-directory {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.directory-header {
  text-align: center;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: var(--glass-blur);
  border: 2px solid var(--border);
  border-radius: var(--glass-radius);
  padding: var(--spacing-lg);
  box-shadow: var(--glass-shadow);
}

.directory-header h2 {
  color: var(--text);
  font-size: 2rem;
  font-weight: 900;
  margin: 0 0 var(--spacing-md);
  text-shadow: 0 0 6px rgba(255, 255, 255, 0.5);
}

.directory-header p {
  color: var(--text);
  font-size: 1.1rem;
  margin: 0;
  opacity: 0.9;
}

/* Chain Stage Sections */
.chain-stage {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: var(--glass-blur);
  border: 2px solid var(--border);
  border-radius: var(--glass-radius);
  padding: var(--spacing-xl);
  box-shadow: var(--glass-shadow);
  position: relative;
}

.stage-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 2px solid var(--border);
}

.stage-header h3 {
  color: var(--text);
  font-size: 1.8rem;
  font-weight: 900;
  margin: 0 0 var(--spacing-sm);
  text-shadow: 0 0 6px rgba(255, 255, 255, 0.5);
}

.stage-header p {
  color: var(--text);
  font-size: 1rem;
  margin: 0;
  opacity: 0.8;
}

/* Enhanced Chains Grid */
.chains-grid {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  min-height: 220px; /* Reduced back to 220px */
  position: relative;
  padding: var(--spacing-sm); /* Reduced padding */
}

/* Chain Stage SVG Container */
.chains-grid svg {
  width: 100%;
  height: auto;
  min-height: 200px; /* Reduced minimum height */
  border-radius: var(--glass-radius);
  background: linear-gradient(135deg, 
    rgba(255, 255, 255, 0.1) 0%, 
    rgba(255, 255, 255, 0.05) 50%, 
    rgba(255, 255, 255, 0.02) 100%);
  -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 
    0 4px 16px rgba(0, 0, 0, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* Enhanced Chain Card Styles (Legacy Support) */
.chain-card-legacy {
  display: none; /* Hidden as replaced by D3 visualization */
}

/* New Chain Visualization Styles */
.chain-stage {
  position: relative;
  overflow: hidden;
}

.chain-stage::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, 
    rgba(79, 195, 247, 0.8) 0%,
    rgba(255, 183, 77, 0.8) 50%,
    rgba(229, 115, 115, 0.8) 100%);
  opacity: 0.6;
  z-index: 1;
}

.stage-header {
  position: relative;
  z-index: 2;
}

/* Enhanced Glassy Effects */
.decision-chain-section,
.chain-stage,
.intro-panel,
.directory-header {
  background: linear-gradient(135deg, 
    rgba(255, 255, 255, 0.15) 0%, 
    rgba(255, 255, 255, 0.08) 50%, 
    rgba(255, 255, 255, 0.05) 100%);
  -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.2),
    inset 0 -1px 0 rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
}

.decision-chain-section::before,
.chain-stage::before,
.intro-panel::before,
.directory-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 30% 30%, 
    rgba(255, 255, 255, 0.1) 0%, 
    transparent 50%);
  pointer-events: none;
  z-index: 1;
}

.decision-chain-section > *,
.chain-stage > *,
.intro-panel > *,
.directory-header > * {
  position: relative;
  z-index: 2;
}

/* Navigation Actions */
.navigation-actions {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  padding: var(--spacing-xl);
}

.action-button {
  padding: var(--spacing-md) var(--spacing-xl);
  border: 2px solid var(--border);
  border-radius: var(--glass-radius);
  font-size: 1.1rem;
  font-weight: 900;
  cursor: pointer;
  transition: all 0.3s ease;
  -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--glass-shadow);
  text-decoration: none;
  display: inline-block;
  text-align: center;
  min-width: 180px;
}

.action-button.primary {
  background: var(--primary);
  color: var(--text);
  text-shadow: 0 0 3px rgba(255, 255, 255, 0.5);
}

.action-button.secondary {
  background: var(--glass-bg);
  color: var(--text);
  text-shadow: 0 0 3px rgba(0, 0, 0, 0.7);
}

.action-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.3);
}

.action-button.primary:hover {
  background: rgba(0, 180, 224, 0.3);
}

.action-button.secondary:hover {
  background: rgba(255, 255, 255, 0.15);
}

/* Enhanced Modal Styles */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: blur(15px);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
  animation: modalFadeIn 0.3s ease-out;
}

@keyframes modalFadeIn {
  from {
    opacity: 0;
    -webkit-backdrop-filter: blur(var(--glass-blur));
    backdrop-filter: blur(0px);
  }
  to {
    opacity: 1;
    -webkit-backdrop-filter: blur(var(--glass-blur));
    backdrop-filter: blur(15px);
  }
}

.modal-content {
  background: linear-gradient(135deg, 
    rgba(255, 255, 255, 0.174) 0%, 
    rgba(255, 255, 255, 0.08) 50%, 
    rgba(255, 255, 255, 0.05) 100%);
    -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: blur(20px);
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--glass-radius);
  box-shadow: 
    0 16px 64px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
  max-width: 600px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  position: relative;
  animation: modalContentSlideIn 0.3s ease-out;
}

@keyframes modalContentSlideIn {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.9);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg);
  border-bottom: 2px solid var(--border);
}

.modal-header h3 {
  color:  rgb(243, 1, 1);
  font-size: 1.5rem;
  font-weight: 900;
  margin: 0;
  text-shadow: 0 0 4px rgb(0, 0, 0);
}

.close-btn {
  color: var(--text);
  font-size: 2rem;
  font-weight: 900;
  cursor: pointer;
  transition: all 0.3s ease;
  line-height: 1;
}

.close-btn:hover {
  color: #ff6b6b;
  transform: scale(1.2);
}

.modal-body {
  padding: var(--spacing-lg);
}

.modal-details {
  color: var(--text);
  line-height: 1.6;
}

.modal-details ul {
  margin: var(--spacing-md) 0;
  padding-left: var(--spacing-lg);
}

.modal-details li {
  margin: var(--spacing-sm) 0;
  color: var(--text);
}

.modal-actions {
  margin-top: var(--spacing-lg);
  text-align: center;
}

/* Enhanced Responsive Design */
@media (max-width: 768px) {
  .main {
    padding: var(--spacing-md);
    gap: var(--spacing-lg);
  }
  
  .intro-content h2 {
    font-size: 1.8rem;
  }
  
  .intro-content p {
    font-size: 1rem;
  }
  
  .chain-header h2 {
    font-size: 1.6rem;
  }
  
  .chains-grid svg {
    height: 200px; /* Increased from 180px */
    min-height: 200px;
  }
  
  .navigation-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .action-button {
    width: 100%;
    max-width: 300px;
  }
  
  .modal-content {
    margin: var(--spacing-md);
    max-height: 90vh;
  }
  
  #blood-chain-viz {
    padding: var(--spacing-md);
  }
  
  .chain-tooltip {
    max-width: 200px;
    font-size: 11px;
  }
}

@media (max-width: 480px) {
  .intro-content h2 {
    font-size: 1.5rem;
  }
  
  .chain-header h2 {
    font-size: 1.4rem;
  }
  
  .stage-header h3 {
    font-size: 1.5rem;
  }
  
  .chains-grid svg {
    height: 180px; /* Increased from 160px */
    min-height: 180px;
  }
  
  #decision-chain-viz {
    padding: var(--spacing-sm);
  }
  
  .chain-tooltip {
    max-width: 180px;
    font-size: 10px;
    padding: 8px;
  }
}

/* Animation Performance Optimizations */
@media (prefers-reduced-motion: reduce) {
  .node-container,
  .chain-node-group,
  .modal,
  .modal-content,
  .chain-tooltip {
    animation: none;
    transition: none;
  }
  
  .node-container:hover,
  .chain-node-group:hover {
    transform: none;
  }
}

/* High DPI Display Optimizations */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  #blood-chain-viz svg,
  .chain-stage-viz {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: -webkit-crisp-edges;
    image-rendering: -webkit-optimize-contrast; /* Edge 79+ support */
    image-rendering: crisp-edges;
    image-rendering: pixelated;
    
  }
}