/* Visual Query Builder Styles
   ============================
   Terminal-inspired styling for drag-and-drop query construction
*/

/* Query Builder Container */
.visual-query-builder {
  display: grid;
  grid-template-columns: 250px 1fr 300px;
  grid-template-rows: auto 1fr;
  gap: 1rem;
  height: calc(100vh - 200px);
  padding: 1rem;
  background: var(--term-bg);
  border: 1px solid var(--term-border);
  border-radius: 6px;
}

.query-builder-header {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem;
  background: var(--term-bg-alt);
  border: 1px solid var(--term-border);
  border-radius: 4px;
}

.query-builder-title {
  font-family: var(--font-mono);
  color: var(--term-primary);
  margin: 0;
  font-size: var(--font-size-lg);
}

.query-builder-actions {
  display: flex;
  gap: 0.5rem;
}

/* Node Type Palette */
.node-palette {
  background: var(--term-bg-alt);
  border: 1px solid var(--term-border);
  border-radius: 4px;
  padding: 1rem;
  overflow-y: auto;
}

.palette-section {
  margin-bottom: 1.5rem;
}

.palette-section:last-child {
  margin-bottom: 0;
}

.palette-title {
  font-family: var(--font-mono);
  color: var(--term-primary);
  font-size: var(--font-size-sm);
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid var(--term-border);
}

.palette-items {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

/* Draggable Node Items */
.draggable-node {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem;
  background: var(--term-bg);
  border: 1px solid var(--term-border);
  border-left: 3px solid var(--term-primary);
  border-radius: 4px;
  cursor: grab;
  transition: all 0.2s ease;
  user-select: none;
}

.draggable-node:hover {
  background: var(--term-bg-highlight);
  border-color: var(--term-primary);
  transform: translateX(2px);
}

.draggable-node:active {
  cursor: grabbing;
  transform: scale(0.98);
}

.draggable-node.dragging {
  opacity: 0.7;
  transform: rotate(5deg);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.node-icon {
  font-size: var(--font-size-lg);
  min-width: 20px;
  text-align: center;
}

.node-label {
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  color: var(--term-fg);
  flex: 1;
}

.node-description {
  font-size: var(--font-size-xs);
  color: var(--term-fg-dim);
  margin-top: 0.125rem;
}

/* Query Canvas */
.query-canvas {
  background: var(--term-bg);
  border: 2px dashed var(--term-border);
  border-radius: 6px;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.canvas-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem;
  background: var(--term-bg-alt);
  border-bottom: 1px solid var(--term-border);
}

.canvas-title {
  font-family: var(--font-mono);
  color: var(--term-primary);
  font-size: var(--font-size-base);
  margin: 0;
}

.canvas-tools {
  display: flex;
  gap: 0.5rem;
}

.canvas-content {
  flex: 1;
  position: relative;
  padding: 1rem;
  min-height: 400px;
}

/* Drop Zone States */
.query-canvas.drag-over {
  border-color: var(--term-primary);
  background: rgba(var(--term-primary-rgb), 0.05);
}

.query-canvas.drag-over::before {
  content: '⊕ Drop here to add to query';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-mono);
  color: var(--term-primary);
  font-size: var(--font-size-lg);
  font-weight: bold;
  z-index: 10;
  pointer-events: none;
}

.canvas-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--term-fg-dim);
  text-align: center;
  font-family: var(--font-mono);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.empty-state-text {
  font-size: var(--font-size-base);
  margin-bottom: 0.5rem;
}

.empty-state-hint {
  font-size: var(--font-size-sm);
  opacity: 0.7;
}

/* Query Nodes in Canvas */
.query-node {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem;
  background: var(--term-bg-alt);
  border: 2px solid var(--term-primary);
  border-radius: 6px;
  cursor: move;
  user-select: none;
  min-width: 120px;
  z-index: 5;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.query-node:hover {
  background: var(--term-bg-highlight);
  border-color: var(--term-primary-bright);
}

.query-node.selected {
  border-color: var(--term-warning);
  box-shadow: 0 0 12px rgba(var(--term-warning-rgb), 0.3);
}

.query-node.connecting {
  border-color: var(--term-info);
  background: rgba(var(--term-info-rgb), 0.1);
}

.query-node-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 1;
}

.query-node-controls {
  display: flex;
  gap: 0.25rem;
}

.query-node-btn {
  background: none;
  border: 1px solid var(--term-border);
  color: var(--term-fg);
  border-radius: 3px;
  padding: 0.125rem 0.25rem;
  font-size: var(--font-size-xs);
  cursor: pointer;
  transition: all 0.2s ease;
}

.query-node-btn:hover {
  background: var(--term-bg-highlight);
  border-color: var(--term-primary);
}

.query-node-btn.danger:hover {
  background: var(--term-error);
  border-color: var(--term-error);
  color: var(--term-bg);
}

/* Connection Lines */
.connection-line {
  position: absolute;
  pointer-events: none;
  z-index: 1;
}

.connection-line svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.connection-path {
  stroke: var(--term-primary);
  stroke-width: 2;
  fill: none;
  stroke-dasharray: 5,5;
  animation: connectionFlow 2s linear infinite;
}

.connection-path.solid {
  stroke-dasharray: none;
  animation: none;
  stroke-width: 2;
}

.connection-path.dashed {
  stroke-dasharray: 8,4;
  animation: none;
  stroke-width: 2;
}

.connection-path.dotted {
  stroke-dasharray: 2,3;
  animation: none;
  stroke-width: 2;
}

.connection-path.thick {
  stroke-dasharray: none;
  animation: none;
  stroke-width: 3;
}

.connection-arrow {
  fill: var(--term-primary);
}

@keyframes connectionFlow {
  to {
    stroke-dashoffset: -10;
  }
}

/* Relationship Labels */
.relationship-label {
  position: absolute;
  background: var(--term-bg-alt);
  border: 1px solid var(--term-border);
  padding: 0.25rem 0.5rem;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--term-fg);
  z-index: 6;
  cursor: pointer;
  user-select: none;
}

.relationship-label:hover {
  background: var(--term-bg-highlight);
  border-color: var(--term-primary);
}

/* Property Panel */
.property-panel {
  background: var(--term-bg-alt);
  border: 1px solid var(--term-border);
  border-radius: 4px;
  padding: 1rem;
  overflow-y: auto;
}

.property-panel.hidden {
  display: none;
}

.property-section {
  margin-bottom: 1.5rem;
}

.property-section:last-child {
  margin-bottom: 0;
}

.property-section-title {
  font-family: var(--font-mono);
  color: var(--term-primary);
  font-size: var(--font-size-sm);
  font-weight: bold;
  margin-bottom: 0.75rem;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid var(--term-border);
}

.property-group {
  margin-bottom: 1rem;
}

.property-label {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  color: var(--term-fg);
  margin-bottom: 0.25rem;
}

.property-input {
  width: 100%;
  padding: 0.5rem;
  background: var(--term-bg);
  border: 1px solid var(--term-border);
  border-radius: 3px;
  color: var(--term-fg);
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
}

.property-input:focus {
  outline: none;
  border-color: var(--term-primary);
  box-shadow: 0 0 4px rgba(var(--term-primary-rgb), 0.3);
}

.property-select {
  width: 100%;
  padding: 0.5rem;
  background: var(--term-bg);
  border: 1px solid var(--term-border);
  border-radius: 3px;
  color: var(--term-fg);
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
}

.property-checkbox {
  margin-right: 0.5rem;
}

/* Query Preview */
.query-preview {
  background: var(--term-bg);
  border: 1px solid var(--term-border);
  border-radius: 4px;
  padding: 1rem;
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  color: var(--term-fg);
  white-space: pre-wrap;
  overflow-x: auto;
  max-height: 200px;
  overflow-y: auto;
}

.query-preview.error {
  border-color: var(--term-error);
  background: rgba(var(--term-error-rgb), 0.05);
  color: var(--term-error);
}

.query-preview.valid {
  border-color: var(--term-success);
  background: rgba(var(--term-success-rgb), 0.05);
}

/* Query Validation */
.validation-status {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-top: 0.5rem;
  padding: 0.75rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  border: 1px solid transparent;
}

.validation-status.valid {
  background: rgba(var(--term-success-rgb), 0.1);
  color: var(--term-success);
  border-color: rgba(var(--term-success-rgb), 0.3);
}

.validation-status.error {
  background: rgba(var(--term-error-rgb), 0.1);
  color: var(--term-error);
  border-color: rgba(var(--term-error-rgb), 0.3);
}

.validation-status.warning {
  background: rgba(var(--term-warning-rgb), 0.1);
  color: var(--term-warning);
  border-color: rgba(var(--term-warning-rgb), 0.3);
}

.validation-details {
  flex: 1;
}

.validation-message {
  font-weight: bold;
  display: block;
  margin-bottom: 0.5rem;
}

.validation-list {
  font-size: var(--font-size-xs);
  line-height: 1.4;
  opacity: 0.9;
}

.validation-suggestions {
  margin-top: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: var(--font-size-xs);
  opacity: 0.8;
}

/* Smart Recommendations Panel */
.smart-recommendations-panel {
  background: var(--term-bg-alt);
  border: 1px solid var(--term-border);
  border-radius: 4px;
  margin-bottom: 1rem;
  overflow: hidden;
}

.recommendations-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem;
  background: var(--term-bg);
  border-bottom: 1px solid var(--term-border);
}

.recommendations-header h4 {
  margin: 0;
  font-family: var(--font-mono);
  color: var(--term-primary);
  font-size: var(--font-size-sm);
  font-weight: bold;
}

.toggle-recommendations {
  background: none;
  border: 1px solid var(--term-border);
  color: var(--term-fg);
  border-radius: 3px;
  padding: 0.25rem 0.5rem;
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all 0.2s ease;
}

.toggle-recommendations:hover {
  background: var(--term-bg-highlight);
  border-color: var(--term-primary);
}

.recommendations-content {
  padding: 0.75rem;
  max-height: 300px;
  overflow-y: auto;
}

.recommendations-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.recommendation-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem;
  background: var(--term-bg);
  border: 1px solid var(--term-border);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.recommendation-item:hover {
  background: var(--term-bg-highlight);
  border-color: var(--term-primary);
  transform: translateX(2px);
}

.recommendation-item[data-type="node"] {
  border-left: 3px solid #2563eb;
}

.recommendation-item[data-type="relationship"] {
  border-left: 3px solid #059669;
}

.recommendation-item[data-type="template"] {
  border-left: 3px solid #7c3aed;
}

.recommendation-item[data-type="search"] {
  border-left: 3px solid #f59e0b;
}

.recommendation-icon {
  font-size: var(--font-size-lg);
  min-width: 24px;
  text-align: center;
  margin-top: 0.125rem;
}

.recommendation-content {
  flex: 1;
  font-family: var(--font-mono);
}

.recommendation-text {
  font-size: var(--font-size-sm);
  color: var(--term-fg);
  font-weight: bold;
  margin-bottom: 0.25rem;
  display: block;
}

.recommendation-reason {
  font-size: var(--font-size-xs);
  color: var(--term-fg-dim);
  margin-bottom: 0.25rem;
  line-height: 1.3;
}

.recommendation-confidence {
  font-size: var(--font-size-xs);
  color: var(--term-primary);
  font-weight: bold;
}

/* Recommendation Animation */
@keyframes recommendationPulse {
  0% { opacity: 0.6; }
  50% { opacity: 1; }
  100% { opacity: 0.6; }
}

.recommendation-item.loading {
  animation: recommendationPulse 1.5s ease-in-out infinite;
}

/* Recommendation Types */
.recommendation-item[data-type="node"] .recommendation-icon {
  color: #2563eb;
}

.recommendation-item[data-type="relationship"] .recommendation-icon {
  color: #059669;
}

.recommendation-item[data-type="template"] .recommendation-icon {
  color: #7c3aed;
}

.recommendation-item[data-type="search"] .recommendation-icon {
  color: #f59e0b;
}

/* Responsive Design */
@media (max-width: 1200px) {
  .visual-query-builder {
    grid-template-columns: 200px 1fr 250px;
  }
}

@media (max-width: 900px) {
  .visual-query-builder {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto 1fr auto;
    height: auto;
  }
  
  .node-palette {
    order: 1;
    max-height: 200px;
  }
  
  .query-canvas {
    order: 2;
    min-height: 300px;
  }
  
  .property-panel {
    order: 3;
    max-height: 200px;
  }
  
  .smart-recommendations-panel {
    order: 0;
    margin-bottom: 0.5rem;
  }
  
  .recommendations-content {
    max-height: 200px;
  }
}

/* Animation and Transitions */
.node-palette, .query-canvas, .property-panel {
  transition: all 0.3s ease;
}

.draggable-node, .query-node {
  transition: all 0.2s ease;
}

/* Dark mode adjustments */
@media (prefers-color-scheme: dark) {
  .query-canvas {
    border-style: solid;
    border-color: var(--term-border-dim);
  }
  
  .connection-path {
    stroke: var(--term-primary-bright);
  }
  
  .query-node {
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
  }
}