/**
 * ConversationEmbeddingPanel.css
 * 
 * Styles for the draggable, resizable embedding projector panel.
 * Based on InstitutionInfoPanel.css and RdfNodeDetailsPanel.css patterns.
 */

/* ============================================================================
   Main Panel Container
   ============================================================================ */

.conversation-embedding-panel {
  position: fixed;
  top: 0;
  left: 0;
  background: white;
  border: 1px solid var(--border-color, #e5e5e5);
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  z-index: 150;
  transition: box-shadow 0.2s ease;
  will-change: transform;
}

.conversation-embedding-panel--dragging,
.conversation-embedding-panel--resizing {
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.18);
  cursor: grabbing !important;
}

.conversation-embedding-panel--minimized {
  height: 48px !important;
}

.conversation-embedding-panel--simple {
  /* Width/height handled inline by component */
}

/* ============================================================================
   Resize Handles
   ============================================================================ */

.conversation-embedding-panel__resize-handle {
  position: absolute;
  background: transparent;
  z-index: 10;
}

/* North and South edges */
.conversation-embedding-panel__resize-handle--n,
.conversation-embedding-panel__resize-handle--s {
  left: 12px;
  right: 12px;
  height: 8px;
  cursor: ns-resize;
}

.conversation-embedding-panel__resize-handle--n {
  top: -4px;
}

.conversation-embedding-panel__resize-handle--s {
  bottom: -4px;
}

/* East and West edges */
.conversation-embedding-panel__resize-handle--e,
.conversation-embedding-panel__resize-handle--w {
  top: 12px;
  bottom: 12px;
  width: 8px;
  cursor: ew-resize;
}

.conversation-embedding-panel__resize-handle--e {
  right: -4px;
}

.conversation-embedding-panel__resize-handle--w {
  left: -4px;
}

/* Corner handles */
.conversation-embedding-panel__resize-handle--ne,
.conversation-embedding-panel__resize-handle--nw,
.conversation-embedding-panel__resize-handle--se,
.conversation-embedding-panel__resize-handle--sw {
  width: 16px;
  height: 16px;
}

.conversation-embedding-panel__resize-handle--ne {
  top: -4px;
  right: -4px;
  cursor: nesw-resize;
}

.conversation-embedding-panel__resize-handle--nw {
  top: -4px;
  left: -4px;
  cursor: nwse-resize;
}

.conversation-embedding-panel__resize-handle--se {
  bottom: -4px;
  right: -4px;
  cursor: nwse-resize;
}

.conversation-embedding-panel__resize-handle--sw {
  bottom: -4px;
  left: -4px;
  cursor: nesw-resize;
}

/* Visual indicator for SE corner (most commonly used for resize) */
.conversation-embedding-panel__resize-handle--se::after {
  content: '';
  position: absolute;
  right: 6px;
  bottom: 6px;
  width: 12px;
  height: 12px;
  border-right: 2px solid rgba(0, 0, 0, 0.15);
  border-bottom: 2px solid rgba(0, 0, 0, 0.15);
  border-radius: 0 0 3px 0;
  pointer-events: none;
}

.conversation-embedding-panel__resize-handle--se:hover::after {
  border-color: rgba(10, 61, 250, 0.4);
}

/* ============================================================================
   Header (Drag Handle)
   ============================================================================ */

.conversation-embedding-panel__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  border-bottom: none;
  background: linear-gradient(135deg, #0a3dfa 0%, #1e50ff 100%);
  flex-shrink: 0;
  user-select: none;
}

.conversation-embedding-panel--minimized .conversation-embedding-panel__header {
  border-bottom: none;
}

.conversation-embedding-panel__title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: white;
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.conversation-embedding-panel__title svg {
  color: rgba(255, 255, 255, 0.9);
  flex-shrink: 0;
}

/* ============================================================================
   Controls - Larger, clearer buttons
   ============================================================================ */

.conversation-embedding-panel__controls {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.conversation-embedding-panel__sources-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
  color: white;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 500;
  white-space: nowrap;
  margin-right: 4px;
}

.conversation-embedding-panel__control-btn,
.conversation-embedding-panel__close-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 6px;
  color: white;
  cursor: pointer;
  transition: all 0.15s ease;
}

.conversation-embedding-panel__control-btn svg,
.conversation-embedding-panel__close-btn svg {
  width: 18px;
  height: 18px;
}

.conversation-embedding-panel__control-btn:hover {
  background: rgba(255, 255, 255, 0.35);
  border-color: rgba(255, 255, 255, 0.5);
  transform: scale(1.05);
}

.conversation-embedding-panel__control-btn--active {
  background: rgba(255, 255, 255, 0.4);
  border-color: rgba(255, 255, 255, 0.6);
}

.conversation-embedding-panel__close-btn:hover {
  background: rgba(220, 38, 38, 0.9);
  border-color: rgba(220, 38, 38, 1);
  transform: scale(1.05);
}

/* ============================================================================
   Content
   ============================================================================ */

.conversation-embedding-panel__content {
  flex: 1;
  overflow: hidden;
  position: relative;
}

.conversation-embedding-panel__loading,
.conversation-embedding-panel__empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  height: 100%;
  color: #666;
  font-size: 0.875rem;
}

.conversation-embedding-panel__loading-icon {
  animation: spin 1s linear infinite;
  color: var(--primary-blue, #0a3dfa);
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.conversation-embedding-panel__empty svg {
  color: #999;
}

.conversation-embedding-panel__empty p {
  margin: 0;
  text-align: center;
}

/* ============================================================================
   Dark Theme
   ============================================================================ */

[data-theme="dark"] .conversation-embedding-panel {
  background: var(--bg-primary-dark, #1a1a2e);
  border-color: var(--border-color-dark, #333);
}

[data-theme="dark"] .conversation-embedding-panel__header {
  background: linear-gradient(135deg, #1a4fff 0%, #3366ff 100%);
}

[data-theme="dark"] .conversation-embedding-panel__title {
  color: white;
}

[data-theme="dark"] .conversation-embedding-panel__control-btn,
[data-theme="dark"] .conversation-embedding-panel__close-btn {
  color: white;
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.25);
}

[data-theme="dark"] .conversation-embedding-panel__control-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  border-color: rgba(255, 255, 255, 0.4);
}

[data-theme="dark"] .conversation-embedding-panel__close-btn:hover {
  background: rgba(220, 38, 38, 0.9);
  border-color: rgba(220, 38, 38, 1);
}

[data-theme="dark"] .conversation-embedding-panel__loading,
[data-theme="dark"] .conversation-embedding-panel__empty {
  color: #999;
}

[data-theme="dark"] .conversation-embedding-panel__resize-handle--se::after {
  border-color: rgba(255, 255, 255, 0.2);
}

[data-theme="dark"] .conversation-embedding-panel__resize-handle--se:hover::after {
  border-color: rgba(100, 150, 255, 0.5);
}

/* ============================================================================
   Responsive Adjustments
   ============================================================================ */

@media (max-width: 768px) {
  .conversation-embedding-panel {
    width: calc(100vw - 32px) !important;
    max-width: 500px;
  }
  
  .conversation-embedding-panel__sources-badge {
    display: none;
  }
  
  .conversation-embedding-panel__resize-handle {
    display: none;
  }
}

@media (max-width: 480px) {
  .conversation-embedding-panel {
    width: calc(100vw - 16px) !important;
    left: 8px !important;
    right: 8px !important;
    transform: translateY(var(--panel-y, 0)) !important;
  }
  
  .conversation-embedding-panel__title {
    font-size: 0.875rem;
  }
  
  .conversation-embedding-panel__control-btn,
  .conversation-embedding-panel__close-btn {
    width: 28px;
    height: 28px;
  }
}