/* ==========================================================================
   Components - Panels, cards, tooltips, legend, graph elements
   ========================================================================== */

/* Legend - collapsed by default, expands on hover */
.legend {
  position: fixed;
  bottom: var(--space-xl);
  left: var(--space-sm);
  z-index: var(--z-controls);
  border-radius: var(--radius-lg);
  transition: all 0.2s ease;
}
.legend-collapsed {
  padding: var(--space-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  cursor: pointer;
}
.legend-expanded {
  display: none;
  padding: var(--space-sm) var(--space-md);
}
.legend:hover .legend-collapsed {
  display: none;
}
.legend:hover .legend-expanded {
  display: block;
}
.legend-title {
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: var(--space-xs);
}
.legend-items {
  display: flex;
  gap: var(--space-lg);
}
.legend-section {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.legend-section h4 {
  font-size: 0.5625rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 2px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.legend-item {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.6875rem;
  color: var(--text-secondary);
}
.node-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  box-shadow: 0 0 6px currentColor;
}
.node-indicator.supports {
  background: var(--accent-supports);
  color: var(--accent-supports);
}
.node-indicator.challenges {
  background: var(--accent-challenges);
  color: var(--accent-challenges);
}
.node-indicator.balanced {
  background: var(--accent-balanced);
  color: var(--accent-balanced);
}
.edge-indicator {
  width: 16px;
  height: 2px;
  border-radius: 2px;
}
.edge-indicator.supports {
  background: var(--edge-supports);
}
.edge-indicator.rebuts {
  background: var(--edge-rebuts);
}
.edge-indicator.extends {
  background: var(--edge-extends);
}

/* Tooltip */
.tooltip {
  position: fixed;
  z-index: var(--z-tooltip);
  padding: var(--space-md);
  border-radius: var(--radius-lg);
  max-width: 320px;
  pointer-events: none;
  opacity: 0;
  transform: translateY(10px);
  transition: all var(--transition-normal);
}
.tooltip.visible {
  opacity: 1;
  transform: translateY(0);
}
.tooltip-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}
.tooltip-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
}
.tooltip-arxiv {
  font-size: 0.6875rem;
  color: var(--text-muted);
  white-space: nowrap;
}
.tooltip-stance {
  display: inline-block;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-full);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: var(--space-sm);
}
.tooltip-stance.supports {
  background: var(--accent-supports-glow);
  color: var(--accent-supports);
}
.tooltip-stance.challenges {
  background: var(--accent-challenges-glow);
  color: var(--accent-challenges);
}
.tooltip-stance.balanced {
  background: var(--accent-balanced-glow);
  color: var(--accent-balanced);
}
.tooltip-argument {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: var(--space-sm);
  font-style: italic;
}
.tooltip-evidence h4 {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: var(--space-xs);
}
.evidence-list {
  list-style: none;
  font-size: 0.75rem;
  color: var(--text-secondary);
}
.evidence-list li {
  padding-left: var(--space-sm);
  position: relative;
  margin-bottom: 2px;
}
.evidence-list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--text-muted);
}
.tooltip-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--glass-border);
  font-size: 0.6875rem;
  color: var(--text-muted);
}
.click-hint {
  opacity: 0.7;
}

/* Side Panel - Card style matching thesis/dialogue */
.side-panel {
  position: fixed;
  top: 105px;
  right: var(--space-sm);
  z-index: var(--z-panel);
  width: 380px;
  max-width: calc(100vw - var(--space-xl) * 2);
  max-height: calc(100vh - 130px);
  border-radius: var(--radius-lg);
  overflow: hidden;
  opacity: 0;
  transform: translateY(-20px);
  pointer-events: none;
  transition: all var(--transition-slow);
  display: flex;
  flex-direction: column;
}
.side-panel.open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.header.collapsed ~ .side-panel {
  top: 68px;
  max-height: calc(100vh - 90px);
}
.side-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--glass-border);
}
.side-panel-title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}
.side-panel-hint {
  font-size: 0.625rem;
  color: var(--text-muted);
  opacity: 0.6;
}
.close-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border: none;
  background: transparent;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-normal);
}
.close-btn:hover {
  background: var(--glass-bg-subtle);
}
.close-btn svg {
  width: 14px;
  height: 14px;
  color: var(--text-muted);
}
.panel-content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: var(--space-md);
  min-height: 0;
}
.panel-header {
  margin-bottom: var(--space-md);
}
.panel-badges {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
  margin-bottom: var(--space-xs);
}
.panel-stance-badge {
  display: inline-block;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-full);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.panel-cluster-badge {
  display: inline-block;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-full);
  font-size: 0.625rem;
  font-weight: 500;
  text-transform: lowercase;
  letter-spacing: 0.02em;
  background: var(--glass-bg-subtle);
  color: var(--text-muted);
  border: 1px solid var(--glass-border);
}
.panel-stance-badge.supports {
  background: var(--accent-supports-glow);
  color: var(--accent-supports);
}
.panel-stance-badge.challenges {
  background: var(--accent-challenges-glow);
  color: var(--accent-challenges);
}
.panel-stance-badge.balanced {
  background: var(--accent-balanced-glow);
  color: var(--accent-balanced);
}
.panel-title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: var(--space-xs);
}
.panel-meta {
  display: flex;
  gap: var(--space-md);
  font-size: 0.75rem;
  color: var(--text-muted);
}
.panel-arxiv {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-normal);
}
.panel-arxiv:hover {
  color: var(--edge-extends);
}
.panel-section {
  margin-bottom: var(--space-md);
}
.panel-section h3 {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: var(--space-xs);
}
.panel-argument {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.5;
  font-style: italic;
  padding-left: var(--space-sm);
  border-left: 2px solid var(--glass-border);
}
.panel-evidence {
  list-style: none;
}
.panel-evidence li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
  padding: var(--space-xs) 0;
  font-size: 0.75rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--glass-border);
}
.panel-evidence li:last-child {
  border-bottom: none;
}
.panel-evidence li::before {
  content: '→';
  color: var(--accent-supports);
  font-weight: 600;
  flex-shrink: 0;
}
.panel-evidence.challenges li::before {
  color: var(--accent-challenges);
}
.panel-evidence.balanced li::before {
  color: var(--accent-balanced);
}
.connections-grid {
  display: grid;
  gap: var(--space-sm);
}
.connection-group h4 {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
}
.connection-list {
  list-style: none;
}
.connection-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  margin-bottom: 2px;
  background: var(--glass-bg-subtle);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  cursor: pointer;
  overflow: hidden;
  transition: all var(--transition-normal);
}
.connection-list li:hover {
  background: var(--glass-bg);
  transform: translateX(4px);
}
.connection-list li.active {
  background: var(--glass-bg);
  transform: translateX(4px);
  box-shadow: 0 0 0 1px var(--text-muted);
}
.connection-list li.empty {
  color: var(--text-muted);
  font-style: italic;
  cursor: default;
}
.connection-list li.empty:hover {
  transform: none;
}
.connection-info {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
  flex: 1;
}
.connection-name {
  font-size: 0.75rem;
  word-break: break-word;
}
.connection-desc {
  font-size: 0.625rem;
  color: var(--text-muted);
  opacity: 0.7;
  word-break: break-word;
}
.connection-type {
  font-size: 0.5625rem;
  font-weight: 600;
  text-transform: uppercase;
  padding: 2px 4px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  align-self: flex-start;
  margin-top: 2px;
}
.connection-type.supports {
  background: var(--accent-supports-glow);
  color: var(--accent-supports);
}
.connection-type.rebuts {
  background: var(--accent-challenges-glow);
  color: var(--accent-challenges);
}
.connection-type.extends {
  background: rgba(167, 139, 250, 0.3);
  color: var(--edge-extends);
}
/* Key Quotes */
.quotes-section {
  display: none;
}
.quotes-section.has-quotes {
  display: block;
}
.panel-quotes {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.panel-quote {
  padding: var(--space-sm) var(--space-md);
  background: var(--glass-bg-subtle);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--accent-balanced);
  font-size: 0.8125rem;
  font-style: italic;
  color: var(--text-secondary);
  line-height: 1.5;
}

.panel-footer {
  flex-shrink: 0;
  padding: var(--space-sm) var(--space-md) var(--space-md);
  border-top: 1px solid var(--glass-border);
  display: flex;
  gap: var(--space-sm);
}
.arxiv-link,
.analysis-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  border: none;
  border-radius: var(--radius-full);
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-primary);
  cursor: pointer;
  background: var(--glass-bg-subtle);
  transition: all var(--transition-normal);
}
.arxiv-link svg,
.analysis-link svg {
  width: 12px;
  height: 12px;
}
.arxiv-link {
  background: rgba(167, 139, 250, 0.3);
  color: var(--edge-extends);
}
.arxiv-link:hover {
  background: var(--edge-extends);
  color: white;
  transform: translateY(-1px);
}
.analysis-link {
  background: var(--accent-balanced-glow);
  color: var(--accent-balanced);
}
.analysis-link:hover {
  background: var(--accent-balanced);
  color: white;
  transform: translateY(-1px);
}

/* Thesis Card */
.thesis-card {
  position: fixed;
  top: 105px;
  left: var(--space-sm);
  z-index: var(--z-controls);
  width: 360px;
  max-width: calc(100vw - var(--space-xl) * 2);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-slow);
}
.header.collapsed ~ .thesis-card {
  top: 68px;
}
.thesis-card.collapsed {
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
}
.thesis-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--glass-border);
}
.thesis-title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}
.thesis-hint {
  font-size: 0.625rem;
  color: var(--text-muted);
  opacity: 0.6;
}
.thesis-content {
  padding: var(--space-sm) var(--space-md) var(--space-md);
  max-height: 200px;
  overflow: hidden;
  transition:
    max-height var(--transition-slow),
    padding var(--transition-slow);
}
.thesis-content blockquote {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}
.thesis-content em {
  color: var(--accent-supports);
  font-style: normal;
  font-weight: 600;
}
.thesis-keyword-link {
  text-decoration: none;
  border-bottom: 1px dashed var(--accent-supports);
  transition:
    border-color 0.2s,
    opacity 0.2s;
}
.thesis-keyword-link:hover {
  border-bottom-style: solid;
  opacity: 0.85;
}
.thesis-keyword-link em {
  color: var(--accent-supports);
}

/* Thesis Footer Links */
.thesis-footer {
  padding: var(--space-xs) var(--space-sm);
  border-top: 1px solid var(--glass-border);
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 4px;
}
.thesis-link {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 3px 7px;
  border-radius: var(--radius-full);
  font-size: 0.65rem;
  font-weight: 500;
  text-decoration: none;
  transition: all var(--transition-normal);
  white-space: nowrap;
}
.thesis-link svg {
  width: 10px;
  height: 10px;
  flex-shrink: 0;
}
.training-link {
  background: rgba(86, 211, 100, 0.15);
  color: var(--thesis-training);
}
.training-link:hover {
  background: var(--thesis-training);
  color: white;
  transform: translateY(-1px);
}
.architecture-link {
  background: rgba(88, 166, 255, 0.15);
  color: var(--thesis-architecture);
}
.architecture-link:hover {
  background: var(--thesis-architecture);
  color: white;
  transform: translateY(-1px);
}
.data-link {
  background: rgba(210, 153, 34, 0.15);
  color: var(--thesis-data);
}
.data-link:hover {
  background: var(--thesis-data);
  color: white;
  transform: translateY(-1px);
}
.tokenization-link {
  background: rgba(240, 136, 62, 0.15);
  color: var(--thesis-tokenization);
}
.tokenization-link:hover {
  background: var(--thesis-tokenization);
  color: white;
  transform: translateY(-1px);
}

/* Overlay Modal */
.overlay-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0);
  -webkit-backdrop-filter: blur(0px);
  backdrop-filter: blur(0px);
  pointer-events: none;
  transition:
    background 0.3s ease,
    -webkit-backdrop-filter 0.3s ease,
    backdrop-filter 0.3s ease;
}
.overlay-modal.open {
  background: rgba(0, 0, 0, 0.6);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  pointer-events: auto;
}
.overlay-chrome {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 0 var(--space-md);
  z-index: 2;
}
.overlay-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.15);
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
  opacity: 0;
  transform: scale(0.8);
}
.overlay-modal.open .overlay-close {
  opacity: 1;
  transform: scale(1);
  transition-delay: 0.15s;
}
.overlay-close:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(1.1);
}
.overlay-close svg {
  width: 18px;
  height: 18px;
}
.overlay-frame {
  width: 92vw;
  height: 90vh;
  max-width: 1100px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 25px 80px rgba(0, 0, 0, 0.5);
  background: var(--overlay-bg);
  opacity: 0;
  transform: translateY(30px) scale(0.96);
  transition:
    opacity 0.3s ease,
    transform 0.3s ease;
}
.overlay-modal.open .overlay-frame {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.thesis-show-btn {
  position: fixed;
  top: 105px;
  left: var(--space-sm);
  z-index: var(--z-controls);
  display: none;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  border: none;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-normal);
}
.thesis-show-btn:hover {
  color: var(--text-primary);
  transform: scale(1.05);
}
.thesis-show-btn svg {
  width: 14px;
  height: 14px;
}
.thesis-show-btn.visible {
  display: flex;
}
.header.collapsed ~ .thesis-show-btn {
  top: 68px;
}

/* Dialogue Panel */
.dialogue-panel {
  position: fixed;
  top: 310px;
  left: var(--space-sm);
  z-index: var(--z-controls);
  width: 360px;
  max-width: calc(100vw - var(--space-xl) * 2);
  max-height: 320px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-slow);
  opacity: 0.85;
}
.dialogue-panel:hover {
  opacity: 1;
}
.dialogue-panel.hidden {
  transform: translateY(-20px);
  opacity: 0;
  pointer-events: none;
}
.header.collapsed ~ .dialogue-panel {
  top: 258px;
}
.thesis-card.collapsed ~ .dialogue-panel {
  top: 140px;
}
.header.collapsed ~ .thesis-card.collapsed ~ .dialogue-panel {
  top: 88px;
}
.dialogue-show-btn {
  position: fixed;
  top: 310px;
  left: var(--space-sm);
  z-index: var(--z-controls);
  display: none;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  border: none;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-normal);
}
.dialogue-show-btn:hover {
  color: var(--text-primary);
  transform: scale(1.05);
}
.dialogue-show-btn svg {
  width: 14px;
  height: 14px;
}
.dialogue-show-btn.visible {
  display: flex;
}
.header.collapsed ~ .dialogue-show-btn {
  top: 258px;
}
.thesis-card.collapsed ~ .dialogue-show-btn {
  top: 140px;
}
.header.collapsed ~ .thesis-card.collapsed ~ .dialogue-show-btn {
  top: 88px;
}
.dialogue-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--glass-border);
}
.dialogue-title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}
.dialogue-hint {
  font-size: 0.625rem;
  color: var(--text-muted);
  opacity: 0.6;
}
.dialogue-messages {
  max-height: 290px;
  overflow: hidden;
  padding: var(--space-sm);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  mask-image: linear-gradient(to bottom, transparent 0%, black 15%, black 100%);
  -webkit-mask-image: linear-gradient(to bottom, transparent 0%, black 15%, black 100%);
}
.dialogue-message {
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  background: var(--glass-bg-subtle);
  font-size: 0.8125rem;
  line-height: 1.4;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-normal);
  animation: dialogueFadeIn 0.5s ease-out;
  border-left: 3px solid transparent;
}
.dialogue-message:hover {
  background: var(--glass-bg);
  transform: translateX(4px);
}
.dialogue-message.supports {
  border-left-color: var(--accent-supports);
}
.dialogue-message.challenges {
  border-left-color: var(--accent-challenges);
}
.dialogue-message.balanced {
  border-left-color: var(--accent-balanced);
}
.dialogue-message .paper-name {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.75rem;
}
.dialogue-message .message-type {
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  opacity: 0.5;
  margin-left: 6px;
}
.dialogue-message .message-text {
  display: block;
  margin-top: 2px;
}
.dialogue-message .message-target {
  display: block;
  font-size: 0.65rem;
  opacity: 0.5;
  margin-top: 3px;
}
.dialogue-typing {
  display: flex;
  gap: 4px;
  padding: var(--space-sm) var(--space-md);
}
.dialogue-typing span {
  width: 6px;
  height: 6px;
  background: var(--text-muted);
  border-radius: 50%;
  animation: typingBounce 1.4s infinite ease-in-out;
}
.dialogue-typing span:nth-child(1) {
  animation-delay: 0s;
}
.dialogue-typing span:nth-child(2) {
  animation-delay: 0.2s;
}
.dialogue-typing span:nth-child(3) {
  animation-delay: 0.4s;
}

/* Graph Nodes & Edges */
.node {
  cursor: pointer;
  transition: all var(--transition-normal);
  will-change: transform; /* GPU hint for drift animation */
}
.node:hover {
  filter: brightness(1.2);
}
.node circle {
  stroke: var(--node-stroke);
  stroke-width: 2px;
  transition: all var(--transition-normal);
}
.node.supports circle {
  fill: var(--accent-supports);
  filter: drop-shadow(0 0 8px var(--accent-supports-glow));
}
.node.challenges circle {
  fill: var(--accent-challenges);
  filter: drop-shadow(0 0 8px var(--accent-challenges-glow));
}
.node.balanced circle {
  fill: var(--accent-balanced);
  filter: drop-shadow(0 0 8px var(--accent-balanced-glow));
}
.node.highlighted circle {
  stroke-width: 4px;
  filter: drop-shadow(0 0 16px currentColor);
}
.node.dimmed {
  opacity: 0;
  pointer-events: none;
}
.node.filter-dimmed {
  opacity: 0;
  pointer-events: none;
}
.node.filter-highlight circle {
  stroke-width: 3px;
  filter: drop-shadow(0 0 8px currentColor);
}
.node.search-match circle {
  stroke-width: 3px;
  filter: drop-shadow(0 0 12px currentColor);
}
.node.search-match text {
  opacity: 1;
}
.node.search-current circle {
  stroke-width: 4px;
  animation: searchPulse 1.5s ease-in-out infinite;
}
.node text {
  font-size: 10px;
  fill: var(--text-secondary);
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-normal);
}
.node:hover text,
.node.highlighted text {
  opacity: 1;
}
.link {
  fill: none;
  stroke-opacity: 0.4;
  stroke-width: 1.5px;
  transition: all var(--transition-normal);
  will-change: x1, y1, x2, y2; /* GPU hint for drift animation */
}
.link.supports {
  stroke: var(--edge-supports);
}
.link.rebuts {
  stroke: var(--edge-rebuts);
}
.link.extends {
  stroke: var(--edge-extends);
}
.link.highlighted {
  stroke-opacity: 1;
  stroke-width: 3px;
}
.link.secondary {
  stroke-opacity: 0.25;
  stroke-width: 1.5px;
}
.link.path-primary {
  stroke-opacity: 1;
  stroke-width: 4px;
  filter: drop-shadow(0 0 6px currentColor);
}
.link.dimmed {
  display: none;
}
.link.filter-dimmed {
  display: none;
}
.node.speaking circle {
  animation: speakingPulse 1s ease-in-out infinite;
}
.node.selected circle {
  animation: pulse 2s ease-in-out infinite;
}

/* CSS breathing animation - uses stroke-width and filter, NOT transform */
/* This avoids conflict with D3's transform="translate(x,y)" positioning */
.node.breathing.supports circle {
  animation: breathe-supports 5s ease-in-out infinite;
}
.node.breathing.challenges circle {
  animation: breathe-challenges 5s ease-in-out infinite;
}
.node.breathing.balanced circle {
  animation: breathe-balanced 5s ease-in-out infinite;
}

/* Animations */
@keyframes breathe-supports {
  0%,
  100% {
    stroke-width: 2px;
    filter: drop-shadow(0 0 8px var(--accent-supports-glow));
  }
  50% {
    stroke-width: 3px;
    filter: drop-shadow(0 0 14px var(--accent-supports-glow));
  }
}
@keyframes breathe-challenges {
  0%,
  100% {
    stroke-width: 2px;
    filter: drop-shadow(0 0 8px var(--accent-challenges-glow));
  }
  50% {
    stroke-width: 3px;
    filter: drop-shadow(0 0 14px var(--accent-challenges-glow));
  }
}
@keyframes breathe-balanced {
  0%,
  100% {
    stroke-width: 2px;
    filter: drop-shadow(0 0 8px var(--accent-balanced-glow));
  }
  50% {
    stroke-width: 3px;
    filter: drop-shadow(0 0 14px var(--accent-balanced-glow));
  }
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.05);
    opacity: 0.8;
  }
}
@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}
@keyframes typingBounce {
  0%,
  80%,
  100% {
    transform: translateY(0);
    opacity: 0.4;
  }
  40% {
    transform: translateY(-6px);
    opacity: 1;
  }
}
@keyframes dialogueFadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes speakingPulse {
  0%,
  100% {
    stroke-width: 2px;
    filter: drop-shadow(0 0 8px currentColor);
  }
  50% {
    stroke-width: 4px;
    filter: drop-shadow(0 0 16px currentColor);
  }
}
@keyframes searchPulse {
  0%,
  100% {
    stroke-width: 4px;
    filter: drop-shadow(0 0 12px currentColor);
  }
  50% {
    stroke-width: 5px;
    filter: drop-shadow(0 0 20px currentColor);
  }
}

/* Search Indicator */
.search-indicator {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--glass-bg-subtle);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  opacity: 0;
  transition: opacity var(--transition-normal);
}
.search-indicator.visible {
  opacity: 1;
}

/* ==========================================================================
   Search Dropdown (Auto-suggest)
   ========================================================================== */

.search-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  margin-top: var(--space-xs);
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  max-height: 320px;
  overflow-y: auto;
  z-index: calc(var(--z-panel) + 10);
  display: none;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.search-dropdown.visible {
  display: block;
}

.search-dropdown-item {
  padding: var(--space-sm) var(--space-md);
  cursor: pointer;
  border-bottom: 1px solid var(--glass-border);
  transition: background var(--transition-fast);
}

.search-dropdown-item:last-child {
  border-bottom: none;
}

.search-dropdown-item:hover,
.search-dropdown-item.selected {
  background: var(--glass-bg-subtle);
}

.search-dropdown-title {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.search-dropdown-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  gap: var(--space-sm);
  align-items: center;
}

.search-dropdown-stance {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.search-dropdown-stance.supports {
  background: var(--accent-supports);
}

.search-dropdown-stance.challenges {
  background: var(--accent-challenges);
}

.search-dropdown-stance.balanced {
  background: var(--accent-balanced);
}

.search-dropdown-empty {
  padding: var(--space-md);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* Highlight matched text in dropdown */
.search-dropdown-title mark {
  background: var(--accent-supports);
  color: var(--text-primary);
  padding: 0 2px;
  border-radius: 2px;
}

/* ==========================================================================
   Search Highlighting in Side Panel
   ========================================================================== */

.panel-content mark,
.panel-content .search-highlight {
  background: var(--accent-supports);
  color: var(--text-primary);
  padding: 0 2px;
  border-radius: 2px;
}