* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: #1a1a1a;
  color: #e0e0e0;
  overflow: hidden;
}

.container {
  height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
header {
  background: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
  padding: 1rem 2rem;
  box-shadow: 0 2px 10px rgba(0,0,0,0.3);
  z-index: 100;
}

header h1 {
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
}

header p {
  opacity: 0.9;
  font-size: 0.85rem;
}

/* Main Layout */
.main-content {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* Sidebar */
.sidebar {
  width: 260px;
  background: #2a2a2a;
  overflow-y: auto;
  border-right: 1px solid #3a3a3a;
  display: flex;
  flex-direction: column;
}

.sidebar-section {
  padding: 1rem;
  border-bottom: 1px solid #3a3a3a;
}

.sidebar h2 {
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
  color: #ff6b35;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Workflow List */
#workflow-list {
  margin-bottom: 0.75rem;
}

.workflow-item {
  padding: 0.75rem;
  background: #333;
  margin-bottom: 0.5rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 0.9rem;
}

.workflow-item:hover {
  background: #3a3a3a;
  transform: translateX(4px);
}

.workflow-item.active {
  background: #ff6b35;
  color: white;
}

/* Node Palette */
.node-palette {
  user-select: none;
}

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

.palette-category h3 {
  font-size: 0.8rem;
  margin-bottom: 0.5rem;
  color: #aaa;
  font-weight: 600;
}

.palette-node {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem;
  background: #333;
  margin-bottom: 0.25rem;
  border-radius: 4px;
  cursor: grab;
  font-size: 0.85rem;
  transition: all 0.2s;
  border: 2px solid transparent;
}

.palette-node:hover {
  background: #3a3a3a;
  border-color: #ff6b35;
  transform: translateX(4px);
}

.palette-node:active {
  cursor: grabbing;
}

.palette-node .node-icon {
  font-size: 1.1rem;
}

.palette-node .node-label {
  flex: 1;
}

/* Canvas Area */
.canvas-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: #1e1e1e;
  position: relative;
}

/* Toolbar */
.toolbar {
  padding: 0.75rem 1rem;
  background: #2a2a2a;
  border-bottom: 1px solid #3a3a3a;
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
}

.toolbar-spacer {
  width: 1px;
  height: 24px;
  background: #3a3a3a;
  margin: 0 0.25rem;
}

.btn-primary, .btn-secondary, .btn-danger, .btn-icon {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-family: inherit;
}

.btn-primary {
  background: #ff6b35;
  color: white;
  font-weight: 600;
}

.btn-primary:hover:not(:disabled) {
  background: #ff8555;
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(255, 107, 53, 0.3);
}

.btn-secondary {
  background: #3a3a3a;
  color: #e0e0e0;
}

.btn-secondary:hover:not(:disabled) {
  background: #4a4a4a;
}

.btn-danger {
  background: #f44336;
  color: white;
}

.btn-danger:hover:not(:disabled) {
  background: #e53935;
}

.btn-icon {
  padding: 0.5rem;
  background: transparent;
  color: #aaa;
  min-width: 32px;
  justify-content: center;
}

.btn-icon:hover {
  background: #3a3a3a;
  color: #fff;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Canvas Container */
.canvas-container {
  flex: 1;
  position: relative;
  overflow: hidden;
}

.canvas {
  width: 100%;
  height: 100%;
  position: relative;
  overflow: auto;
  background-image: 
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 20px 20px;
  outline: none;
}

.canvas:focus {
  outline: 2px solid #ff6b35;
  outline-offset: -2px;
}

.canvas-placeholder {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: #666;
  font-size: 1.1rem;
  pointer-events: none;
}

/* Connections Layer */
.connections-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.connection-line {
  pointer-events: stroke;
  cursor: pointer;
}

.connection-line:hover {
  stroke-width: 4 !important;
}

.connection-line.selected {
  stroke: #2196f3 !important;
  stroke-width: 4 !important;
}

/* Workflow Node */
.workflow-node {
  position: absolute;
  background: #2a2a2a;
  border: 2px solid #3a3a3a;
  border-radius: 8px;
  padding: 1rem;
  min-width: 180px;
  cursor: move;
  transition: all 0.2s;
  z-index: 10;
  user-select: none;
}

.workflow-node:hover {
  border-color: #ff6b35;
  box-shadow: 0 4px 12px rgba(255, 107, 53, 0.2);
  z-index: 11;
}

.workflow-node.selected {
  border-color: #ff6b35;
  background: #333;
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.3);
  z-index: 12;
}

.workflow-node.dragging {
  opacity: 0.7;
  cursor: grabbing;
}

.workflow-node.success {
  border-color: #4caf50;
}

.workflow-node.failed {
  border-color: #f44336;
}

.workflow-node.running {
  border-color: #2196f3;
  animation: pulse 1.5s infinite;
}

.workflow-node.queued {
  border-color: #ffc107;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* Node Header */
.node-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
  gap: 0.5rem;
}

.node-type {
  font-size: 0.7rem;
  color: #ff6b35;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}

.node-status-badge {
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.node-connector-badge {
  font-size: 0.65rem;
  padding: 0.15rem 0.4rem;
  background: #3a3a3a;
  border-radius: 3px;
  color: #aaa;
}

.node-connector-badge.sandbox {
  background: #4caf50;
  color: white;
}

.node-connector-badge.remote {
  background: #2196f3;
  color: white;
}

.node-connector-badge.stubbed {
  background: #ffc107;
  color: #000;
}

.node-description {
  font-size: 0.9rem;
  color: #ccc;
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

/* Connection Ports */
.node-ports {
  display: flex;
  justify-content: space-between;
  margin-top: 0.5rem;
}

.port {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #3a3a3a;
  border: 2px solid #666;
  cursor: crosshair;
  transition: all 0.2s;
  position: relative;
}

.port:hover {
  background: #ff6b35;
  border-color: #ff6b35;
  transform: scale(1.3);
  box-shadow: 0 0 8px rgba(255, 107, 53, 0.5);
}

.port.active {
  background: #ff6b35;
  border-color: #ff6b35;
  animation: portPulse 1s infinite;
}

@keyframes portPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.3); }
}

.port-input {
  margin-right: auto;
}

.port-output {
  margin-left: auto;
}

/* Execution Panel */
.execution-panel {
  background: #1a1a1a;
  border-top: 1px solid #3a3a3a;
  display: flex;
  flex-direction: column;
  max-height: 300px;
  transition: max-height 0.3s;
}

.execution-panel.collapsed {
  max-height: 40px;
}

.panel-header {
  padding: 0.75rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #2a2a2a;
  cursor: pointer;
  user-select: none;
}

.panel-header h3 {
  font-size: 0.85rem;
  color: #ff6b35;
  font-weight: 600;
}

.panel-controls {
  display: flex;
  gap: 0.5rem;
}

.log-content {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  font-family: 'Courier New', monospace;
  font-size: 0.8rem;
  line-height: 1.6;
}

.log-entry {
  padding: 0.25rem 0;
  border-bottom: 1px solid #2a2a2a;
  display: flex;
  gap: 0.5rem;
}

.log-timestamp {
  color: #666;
  min-width: 80px;
}

.log-message {
  flex: 1;
}

.log-entry.success {
  color: #4caf50;
}

.log-entry.error {
  color: #f44336;
}

.log-entry.info {
  color: #2196f3;
}

.log-entry.warning {
  color: #ffc107;
}

/* Inspector */
.inspector {
  width: 320px;
  background: #2a2a2a;
  padding: 1rem;
  overflow-y: auto;
  border-left: 1px solid #3a3a3a;
}

.inspector h2 {
  font-size: 0.9rem;
  margin-bottom: 1rem;
  color: #ff6b35;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.inspector-content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.placeholder {
  color: #666;
  font-style: italic;
  text-align: center;
  padding: 2rem 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-size: 0.8rem;
  color: #aaa;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.6rem;
  background: #1a1a1a;
  border: 1px solid #3a3a3a;
  border-radius: 4px;
  color: #e0e0e0;
  font-family: inherit;
  font-size: 0.85rem;
}

.form-group textarea {
  min-height: 100px;
  font-family: 'Courier New', monospace;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: #ff6b35;
  box-shadow: 0 0 0 2px rgba(255, 107, 53, 0.2);
}

.form-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.btn-delete {
  background: #f44336;
  color: white;
}

.btn-delete:hover {
  background: #e53935;
}

/* Temp Connection */
.temp-connection {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1000;
}

/* Responsive */
@media (max-width: 1200px) {
  .sidebar {
    width: 220px;
  }
  
  .inspector {
    width: 280px;
  }
}

@media (max-width: 900px) {
  .sidebar,
  .inspector {
    position: absolute;
    z-index: 200;
    height: 100%;
    transform: translateX(-100%);
    transition: transform 0.3s;
  }
  
  .inspector {
    right: 0;
    transform: translateX(100%);
  }
  
  .sidebar.open {
    transform: translateX(0);
  }
  
  .inspector.open {
    transform: translateX(0);
  }
}

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Touch Support */
@media (hover: none) and (pointer: coarse) {
  .workflow-node {
    touch-action: none;
  }
  
  .port {
    width: 20px;
    height: 20px;
  }
  
  .palette-node {
    padding: 1rem;
  }
}


/* ============================================================================
   ASSEMBLER EDITOR STYLES
   ============================================================================ */

/* Inspector Tabs */
.inspector-tabs {
  display: flex;
  border-bottom: 1px solid #3a3a3a;
  margin-bottom: 1rem;
}

.tab-button {
  flex: 1;
  padding: 0.75rem;
  background: transparent;
  border: none;
  color: #aaa;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  transition: all 0.2s;
  border-bottom: 2px solid transparent;
}

.tab-button:hover {
  color: #fff;
  background: rgba(255, 107, 53, 0.1);
}

.tab-button.active {
  color: #ff6b35;
  border-bottom-color: #ff6b35;
}

.tab-content {
  display: none;
  flex-direction: column;
  height: calc(100% - 60px);
}

.tab-content.active {
  display: flex;
}

/* Editor Header */
.editor-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem;
  background: #1a1a1a;
  border-radius: 4px;
  margin-bottom: 0.75rem;
  gap: 0.5rem;
}

.editor-info {
  flex: 1;
  min-width: 0;
}

.editor-node-info {
  font-size: 0.75rem;
  color: #aaa;
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.editor-node-info.attached {
  color: #4caf50;
  font-weight: 600;
}

.editor-controls {
  display: flex;
  gap: 0.5rem;
}

.editor-select {
  padding: 0.4rem 0.6rem;
  background: #2a2a2a;
  border: 1px solid #3a3a3a;
  border-radius: 4px;
  color: #e0e0e0;
  font-size: 0.8rem;
  cursor: pointer;
}

.editor-select:focus {
  outline: none;
  border-color: #ff6b35;
}

/* Monaco Editor Container */
.monaco-editor-container {
  flex: 1;
  border: 1px solid #3a3a3a;
  border-radius: 4px;
  overflow: hidden;
  min-height: 300px;
  margin-bottom: 0.75rem;
}

/* Editor Actions */
.editor-actions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.editor-actions-row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.editor-actions-row button {
  flex: 1;
  min-width: 0;
  font-size: 0.8rem;
  padding: 0.5rem 0.75rem;
}

/* Validation Results */
.validation-result {
  padding: 0.75rem;
  border-radius: 4px;
  margin-top: 0.5rem;
  font-size: 0.85rem;
  line-height: 1.4;
}

.validation-result.success {
  background: rgba(76, 175, 80, 0.1);
  border: 1px solid #4caf50;
  color: #4caf50;
}

.validation-result.error {
  background: rgba(244, 67, 54, 0.1);
  border: 1px solid #f44336;
  color: #f44336;
}

.validation-result.warning {
  background: rgba(255, 193, 7, 0.1);
  border: 1px solid #ffc107;
  color: #ffc107;
}

/* File Upload Input */
input[type="file"] {
  display: none;
}

/* Editor Resize Handle */
.inspector.resizing {
  user-select: none;
}

/* Responsive Editor */
@media (max-width: 1200px) {
  .monaco-editor-container {
    min-height: 250px;
  }
  
  .editor-actions-row button {
    font-size: 0.75rem;
    padding: 0.4rem 0.6rem;
  }
}

@media (max-width: 900px) {
  .inspector-tabs {
    position: sticky;
    top: 0;
    background: #2a2a2a;
    z-index: 10;
  }
  
  .monaco-editor-container {
    min-height: 200px;
  }
}

/* Editor Loading State */
.editor-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 300px;
  color: #666;
  font-size: 0.9rem;
}

/* Editor Error State */
.editor-error {
  padding: 1rem;
  background: rgba(244, 67, 54, 0.1);
  border: 1px solid #f44336;
  border-radius: 4px;
  color: #f44336;
  font-size: 0.85rem;
}