/**
 * OD2 Workflow Viewer - CSS Styles
 * Version: 1.0.0
 */

/* Light Theme (Default) */
.od2-workflow-viewer.od2-theme-light {
  --od2-bg-color: #ffffff;
  --od2-border-color: #e5e7eb;
  --od2-text-color: #111827;
  --od2-text-muted: #6b7280;
  --od2-node-bg: #f9fafb;
  --od2-node-border: #d1d5db;
  --od2-success-color: #10b981;
  --od2-error-color: #ef4444;
  --od2-input-color: #3b82f6;
  --od2-shadow: rgba(0, 0, 0, 0.1);
}

/* Dark Theme */
.od2-workflow-viewer.od2-theme-dark {
  --od2-bg-color: #111827;
  --od2-border-color: #374151;
  --od2-text-color: #f9fafb;
  --od2-text-muted: #9ca3af;
  --od2-node-bg: #1f2937;
  --od2-node-border: #4b5563;
  --od2-success-color: #10b981;
  --od2-error-color: #ef4444;
  --od2-input-color: #60a5fa;
  --od2-shadow: rgba(0, 0, 0, 0.3);
}

/* Auto Theme - follows system preference */
@media (prefers-color-scheme: dark) {
  .od2-workflow-viewer.od2-theme-auto {
    --od2-bg-color: #111827;
    --od2-border-color: #374151;
    --od2-text-color: #f9fafb;
    --od2-text-muted: #9ca3af;
    --od2-node-bg: #1f2937;
    --od2-node-border: #4b5563;
    --od2-success-color: #10b981;
    --od2-error-color: #ef4444;
    --od2-input-color: #60a5fa;
    --od2-shadow: rgba(0, 0, 0, 0.3);
  }
}

@media (prefers-color-scheme: light) {
  .od2-workflow-viewer.od2-theme-auto {
    --od2-bg-color: #ffffff;
    --od2-border-color: #e5e7eb;
    --od2-text-color: #111827;
    --od2-text-muted: #6b7280;
    --od2-node-bg: #f9fafb;
    --od2-node-border: #d1d5db;
    --od2-success-color: #10b981;
    --od2-error-color: #ef4444;
    --od2-input-color: #3b82f6;
    --od2-shadow: rgba(0, 0, 0, 0.1);
  }
}

/* Base Container Styles */
.od2-workflow-viewer {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  box-sizing: border-box;
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  position: relative;
  overflow: hidden;
}

.od2-workflow-viewer * {
  box-sizing: border-box;
}

/* SVG Styles */
.od2-workflow-viewer svg {
  display: block;
  width: 100%;
  height: 100%;
}

/* Node Styles */
.od2-node {
  transition: all 0.2s ease;
}

.od2-node:hover {
  filter: brightness(1.05);
}

.od2-node rect {
  transition: all 0.2s ease;
  box-shadow: 0 2px 4px var(--od2-shadow);
}

.od2-node:hover rect {
  stroke-width: 3;
  box-shadow: 0 4px 8px var(--od2-shadow);
}

/* Connection Handle Styles */
.od2-node circle {
  transition: all 0.2s ease;
}

.od2-node circle:hover {
  r: 8;
  stroke-width: 3;
}

/* Control Buttons */
.od2-controls {
  position: absolute;
  top: 10px;
  right: 10px;
  display: flex;
  gap: 5px;
  z-index: 10;
}

.od2-controls button {
  width: 32px;
  height: 32px;
  border: 1px solid var(--od2-border-color);
  background: var(--od2-bg-color);
  color: var(--od2-text-color);
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  box-shadow: 0 1px 3px var(--od2-shadow);
}

.od2-controls button:hover {
  background: var(--od2-node-bg);
  border-color: var(--od2-input-color);
  transform: translateY(-1px);
  box-shadow: 0 2px 6px var(--od2-shadow);
}

.od2-controls button:active {
  transform: translateY(0);
  box-shadow: 0 1px 3px var(--od2-shadow);
}

/* Loading State */
.od2-workflow-viewer.od2-loading {
  display: flex;
  align-items: center;
  justify-content: center;
}

.od2-workflow-viewer.od2-loading::before {
  content: '';
  width: 32px;
  height: 32px;
  border: 3px solid var(--od2-border-color);
  border-top: 3px solid var(--od2-input-color);
  border-radius: 50%;
  animation: od2-spin 1s linear infinite;
}

@keyframes od2-spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Error State */
.od2-workflow-viewer .od2-error {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--od2-error-color);
  text-align: center;
  padding: 20px;
}

.od2-workflow-viewer .od2-error-icon {
  font-size: 24px;
  margin-bottom: 10px;
}

.od2-workflow-viewer .od2-error-title {
  font-weight: 600;
  margin-bottom: 5px;
  font-size: 16px;
}

.od2-workflow-viewer .od2-error-message {
  font-size: 14px;
  opacity: 0.8;
  line-height: 1.4;
}

/* Responsive Design */
@media (max-width: 768px) {
  .od2-controls {
    top: 5px;
    right: 5px;
    gap: 3px;
  }
  
  .od2-controls button {
    width: 28px;
    height: 28px;
    font-size: 12px;
  }
  
  .od2-workflow-viewer {
    border-radius: 4px;
  }
}

/* High DPI Display Support */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .od2-workflow-viewer svg {
    shape-rendering: geometricPrecision;
  }
}

/* Print Styles */
@media print {
  .od2-controls {
    display: none;
  }
  
  .od2-workflow-viewer {
    border: 1px solid #ccc;
    background: white;
  }
}

/* Accessibility */
.od2-workflow-viewer:focus-within {
  outline: 2px solid var(--od2-input-color);
  outline-offset: 2px;
}

.od2-controls button:focus {
  outline: 2px solid var(--od2-input-color);
  outline-offset: 1px;
}

/* Animation for node connections */
@keyframes od2-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

.od2-node circle.od2-connecting {
  animation: od2-pulse 1s ease-in-out infinite;
}

/* Smooth zoom transitions */
.od2-main-group {
  transition: transform 0.2s ease-out;
}

/* Custom scrollbar for overflow areas */
.od2-workflow-viewer::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

.od2-workflow-viewer::-webkit-scrollbar-track {
  background: var(--od2-bg-color);
}

.od2-workflow-viewer::-webkit-scrollbar-thumb {
  background: var(--od2-border-color);
  border-radius: 4px;
}

.od2-workflow-viewer::-webkit-scrollbar-thumb:hover {
  background: var(--od2-text-muted);
}

/* Tooltip styles for node information */
.od2-tooltip {
  position: absolute;
  background: var(--od2-node-bg);
  border: 1px solid var(--od2-border-color);
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 12px;
  color: var(--od2-text-color);
  box-shadow: 0 4px 12px var(--od2-shadow);
  z-index: 1000;
  pointer-events: none;
  max-width: 200px;
  word-wrap: break-word;
}

.od2-tooltip::before {
  content: '';
  position: absolute;
  top: -5px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-bottom: 5px solid var(--od2-border-color);
}

/* Node status indicators */
.od2-node.od2-status-success rect {
  border-left: 4px solid var(--od2-success-color);
}

.od2-node.od2-status-error rect {
  border-left: 4px solid var(--od2-error-color);
}

.od2-node.od2-status-pending rect {
  border-left: 4px solid #f59e0b;
}

/* Minimap styles (if added later) */
.od2-minimap {
  position: absolute;
  bottom: 10px;
  right: 10px;
  width: 150px;
  height: 100px;
  border: 1px solid var(--od2-border-color);
  border-radius: 4px;
  background: var(--od2-bg-color);
  opacity: 0.8;
  z-index: 5;
}

/* Edge animation */
.od2-edge-animated {
  stroke-dasharray: 5;
  animation: od2-dash 1s linear infinite;
}

@keyframes od2-dash {
  to {
    stroke-dashoffset: -10;
  }
}

/* Action button styles */
.od2-action-button {
  transition: all 0.2s ease-in-out;
}

.od2-action-button:hover {
  transform: scale(1.1);
}

.od2-action-button circle {
  transition: all 0.2s ease-in-out;
}

/* Image modal styles */
.od2-image-modal-overlay {
  backdrop-filter: blur(4px);
  animation: od2-fade-in 0.2s ease-out;
}

@keyframes od2-fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.od2-image-modal-container {
  animation: od2-scale-in 0.2s ease-out;
}

@keyframes od2-scale-in {
  from {
    transform: scale(0.9);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

/* Action button tooltip styles */
.od2-action-button-tooltip {
  position: absolute;
  background: var(--od2-node-bg);
  color: var(--od2-text-color);
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 12px;
  border: 1px solid var(--od2-border-color);
  box-shadow: 0 2px 4px var(--od2-shadow);
  pointer-events: none;
  white-space: nowrap;
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.2s ease-in-out;
}

.od2-action-button:hover .od2-action-button-tooltip {
  opacity: 1;
}