/**
 * WT-Notes: vls-canvas.css
 * Styling for the Free Body Diagram (Vrijlichaamschema / VLS) interactive canvas,
 * engineering grid, toolbars, and modal overlay.
 */

.vls-modal-content {
  max-width: 900px;
  width: 95vw;
}

.vls-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--bg-card, #ffffff);
  border-radius: 8px;
}

.vls-presets-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  overflow-x: auto;
  white-space: nowrap;
}

[data-theme="dark"] .vls-presets-bar {
  background: #0f172a;
  border-color: #1e293b;
}

.vls-presets-label {
  font-size: 0.76rem;
  font-weight: 700;
  color: #64748b;
  margin-right: 4px;
}

.vls-preset-pill {
  padding: 5px 11px;
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: 6px;
  border: 1px solid #cbd5e1;
  background: #ffffff;
  color: #1e293b;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.15s ease;
}

[data-theme="dark"] .vls-preset-pill {
  background: #1e293b;
  color: #f1f5f9;
  border-color: #334155;
}

.vls-preset-pill:hover {
  background: #2563eb;
  color: #ffffff;
  border-color: #2563eb;
  transform: translateY(-1px);
}

.vls-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 12px;
  background: var(--bg-toolbar, #f1f5f9);
  border: 1px solid var(--border-color, #cbd5e1);
  border-radius: 6px;
}

.vls-tool-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
}

.vls-tool-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 44px;
  min-width: 44px;
  padding: 8px 12px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-color, #1e293b);
  background: var(--bg-surface, #ffffff);
  border: 1px solid var(--border-color, #cbd5e1);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease-in-out;
  touch-action: manipulation;
}

.vls-tool-btn:hover {
  background: var(--accent-light, #e0f2fe);
  border-color: var(--accent-color, #0284c7);
  color: var(--accent-color, #0284c7);
}

.vls-tool-btn.active {
  background: var(--accent-color, #0284c7);
  border-color: var(--accent-color, #0284c7);
  color: #ffffff;
}

.vls-canvas-wrapper {
  position: relative;
  width: 100%;
  height: 450px;
  background: #ffffff;
  border: 2px solid var(--border-color, #94a3b8);
  border-radius: 6px;
  overflow: hidden;
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.05);
}

.vls-canvas-wrapper canvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: crosshair;
}

.vls-footer-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding-top: 8px;
}

.vls-legend {
  font-size: 0.8rem;
  color: var(--text-muted, #64748b);
  display: flex;
  align-items: center;
  gap: 12px;
}

.vls-legend-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

.vls-legend-color {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  display: inline-block;
}

@media (max-width: 768px) {
  .vls-canvas-wrapper {
    height: 340px;
  }
  .vls-tool-btn {
    padding: 6px 10px;
    font-size: 0.75rem;
  }
}

/* Rendered VLS Diagram Cards inside Notes */
.vls-diagram-card {
  margin: 1.5rem 0;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  background: #ffffff;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] .vls-diagram-card {
  border-color: #334155;
  background: #1e293b;
}

.vls-diagram-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: #f8fafc;
  border-bottom: 1px solid #e2e8f0;
  font-size: 0.85rem;
  font-weight: 600;
  color: #1e293b;
}

[data-theme="dark"] .vls-diagram-header {
  background: #0f172a;
  border-color: #334155;
  color: #f1f5f9;
}

.vls-diagram-badge {
  background: #2563eb;
  color: #ffffff;
  padding: 2px 7px;
  border-radius: 4px;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  font-weight: 700;
}

.vls-diagram-title {
  flex-grow: 1;
}

.vls-rendered-img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
  background: #ffffff;
}

.vls-diagram-placeholder {
  padding: 24px;
  text-align: center;
  color: #64748b;
  font-style: italic;
  font-size: 0.9rem;
}