/* ------------------------------------------------------------------ */
/*  Canvas view – layout and controls                                 */
/* ------------------------------------------------------------------ */


/* ------------------------------------------------------------------ */
/* Root container – app container during canvas view */
/* ------------------------------------------------------------------ */

#app-container {
  display: flex;
  flex-direction: column;
  /* Occupy the page grid's content row and allow children to size */
  min-height: 0;
  box-sizing: border-box;
  overflow: visible; /* Allow dropdowns to escape stacking context */
}

#app-container.canvas-view {
  flex-direction: row;
}

#canvas-container {
  flex: 1;
  min-height: 0;
  display: flex;
  background: var(--dark-lighter);
  position: relative;
  padding: 0;
}

/* ------------------------------------------------------------------ */
/* Main content wrapper (toolbar + canvas)                             */
/* ------------------------------------------------------------------ */

.main-content-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
}

/* Light grid overlay */
#canvas-container::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,0,0,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,0.03) 1px, transparent 1px);
  background-size: 20px 20px;
  pointer-events: none;
}

#node-canvas {
  width: 100%;
  height: 100%;
  position: relative;
  z-index: var(--z-canvas);
  background-color: #33334a !important;
}

/* Input toolbar anchored to top of canvas */
#canvas-input-panel {
  display: flex;
  align-items: center;
  padding: var(--spacing-md);
  background: var(--dark-card);
  border-bottom: 1px solid var(--border-color);
  z-index: 5;
  gap: var(--spacing-sm);
  flex-shrink: 0;
}

/* Chat / command input within panel */
#user-input {
  width: 300px;
  padding: 8px;
  margin-right: 10px;
  border-radius: var(--radius-sm);
  border: 1px solid #ccc;
}

#send-button { background-color: var(--success); }

#center-button {
  background-color: var(--primary);
  color: var(--dark);
}

#center-button:disabled {
  background-color: #bbb;
  color: #fff;
  opacity: 0.7;
  cursor: not-allowed;
}

#clear-button { background-color: var(--error); }

#model-select {
  padding: 8px;
  margin-left: 10px;
  border-radius: var(--radius-sm);
  border: 1px solid #ccc;
}

/* ------------------------------------------------------------------ */
/* Workflow tab bar                                                   */
/* ------------------------------------------------------------------ */

#workflow-bar {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  height: 40px;
  background: var(--dark-card);
  border-bottom: 1px solid var(--border-color);
  padding: 0 var(--spacing-md);
  overflow-x: auto;
  flex-shrink: 0;
  position: relative;
  z-index: var(--z-toolbar);
}

.workflow-tab-list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  align-items: center;
  gap: var(--spacing-xs);
  flex: 1 1 auto;
  min-width: 0;
}

.workflow-tab-list .tab {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  cursor: pointer;
  user-select: none;
  font-size: 13px;
  font-weight: 500;
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
  min-height: 28px;
  display: flex;
  align-items: center;
}

.workflow-tab-list .tab:hover {
  background: var(--bg-hover);
  color: var(--text);
}

.workflow-tab-list .tab.active {
  background: var(--bg-button);
  color: var(--text);
  border-color: var(--border-color);
}

.workflow-tab-list .plus-tab {
  font-weight: bold;
  color: var(--primary);
  font-size: 16px;
  min-width: 32px;
  justify-content: center;
}

.workflow-tab-list .plus-tab:hover {
  background: rgba(100, 255, 218, 0.1);
  color: var(--primary);
}

/* Space-bar panning cursor override */
body.space-pan #node-canvas {
  cursor: grab !important;
}

/* Toolbar actions container (right side of workflow bar) */
.toolbar-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.toolbar-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 0 6px;
  font: 500 15px/1 system-ui, sans-serif;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 28px;
  min-width: 28px;
  position: relative;
}

.toolbar-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
  border-color: rgba(100, 255, 218, 0.3);
  transform: translateY(-1px);
}

.toolbar-btn:active {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(0);
}

/* Tooltip styles */
.toolbar-btn::after {
  content: attr(title);
  position: absolute;
  bottom: -32px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--dark-card);
  color: var(--text);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
  border: 1px solid var(--border-color);
  z-index: 100;
}

.toolbar-btn:hover::after {
  opacity: 1;
}


/* Custom dropdown container */
.dropdown-container {
  position: relative;
  display: inline-block;
}

.dropdown-toggle {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  padding: 6px;
  font-size: 14px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 28px;
  min-width: 28px;
  user-select: none;
}

.dropdown-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
  border-color: rgba(100, 255, 218, 0.3);
  transform: translateY(-1px);
}

.dropdown-toggle.active {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  border-color: rgba(100, 255, 218, 0.5);
}

.dropdown-menu {
  position: absolute;
  background: var(--dark-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 4px 0;
  min-width: 120px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  z-index: var(--z-overlay);
  opacity: 0;
  transform: translateY(-4px);
  transition: all var(--transition-fast);
  pointer-events: none;
}

.dropdown-menu.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.dropdown-item {
  display: block;
  width: 100%;
  padding: 8px 12px;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 12px;
  text-align: left;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.dropdown-item:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
}

.dropdown-item.danger:hover {
  background: rgba(239, 68, 68, 0.1);
  color: var(--error);
}

/* Toggle switch */
.toggle-container { display: inline-flex; align-items: center; margin-left: 10px; }
.toggle-label { position: relative; display: inline-flex; align-items: center; cursor: pointer; user-select: none; }
.toggle-label::before { content: 'Auto-Fit'; margin-right: 8px; font-size: 14px; color: #ccc; }
.toggle-checkbox { opacity: 0; width: 0; height: 0; position: absolute; }
.toggle-slider { position: relative; display: inline-block; width: 40px; height: 20px; background-color: #ccc; border-radius: 20px; transition: .1s; }
.toggle-slider:before { position: absolute; content: ""; height: 16px; width: 16px; left: 2px; bottom: 2px; background-color: white; border-radius: 50%; transition: .1s; }
.toggle-checkbox:checked + .toggle-slider { background-color: var(--success); }
.toggle-checkbox:checked + .toggle-slider:before { transform: translateX(20px); }

/* Simple responsive tweak when shelf collapses (redundant with agent_shelf.css but harmless) */
@media (max-width: 768px) {
  #app-container.canvas-view { flex-direction: column; }
  .main-content-area { min-width: 0; }
}