/* ============================================
   CONFIGURATOR PAGE STYLES
   Enterprise Engineering Dark Mode
   ============================================ */

.configurator-page {
  overflow: hidden;
  height: 100vh;
}

/* --- Layout --- */
.config-layout {
  display: grid;
  grid-template-columns: 280px 1fr 300px;
  height: calc(100vh - 56px);
  margin-top: 75px;
}

/* --- Sidebar --- */
.config-sidebar {
  background: var(--surface-200);
  border-right: 1px solid rgba(255,255,255,0.06);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  transition: width var(--duration-normal) var(--ease-out-expo);
}

.config-sidebar.collapsed {
  width: 60px;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-md);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.sidebar-toggle {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  transition: all var(--duration-fast) var(--ease-in-out);
}

.sidebar-toggle:hover {
  background: rgba(255,255,255,0.06);
  color: var(--text-primary);
}

.sidebar-search {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin: var(--space-sm) var(--space-sm);
  padding: var(--space-xs) var(--space-sm);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-md);
}

.sidebar-search-input {
  flex: 1;
  font-size: var(--text-xs);
  padding: 2px 0;
}

.sidebar-search-input::placeholder {
  color: var(--text-muted);
}

/* Sidebar Sections */
.sidebar-section {
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.sidebar-section-header {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  cursor: pointer;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: color var(--duration-fast) var(--ease-in-out);
  user-select: none;
}

.sidebar-section-header:hover {
  color: var(--text-primary);
}

.sidebar-section-header svg {
  transition: transform var(--duration-normal) var(--ease-out-expo);
}

.sidebar-section-header.collapsed svg {
  transform: rotate(-90deg);
}

.sidebar-count {
  margin-left: auto;
  font-size: 0.6rem;
  color: var(--text-muted);
  background: rgba(255,255,255,0.06);
  padding: 1px 6px;
  border-radius: var(--radius-full);
}

.sidebar-items {
  padding: 0 var(--space-sm) var(--space-sm);
  display: flex;
  flex-direction: column;
  gap: 2px;
  transition: all var(--duration-normal) var(--ease-out-expo);
  overflow: hidden;
}

.sidebar-items.collapsed {
  max-height: 0;
  padding: 0 var(--space-sm);
  opacity: 0;
}

/* Sidebar Items */
.sidebar-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-md);
  cursor: grab;
  transition: all var(--duration-fast) var(--ease-in-out);
  border: 1px solid transparent;
}

.sidebar-item:hover {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.08);
}

.sidebar-item:active {
  cursor: grabbing;
  background: rgba(133,0,255,0.08);
  border-color: rgba(133,0,255,0.2);
}

.sidebar-item.dragging {
  opacity: 0.5;
}

.item-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.item-icon-containment {
  background: rgba(133,0,255,0.08);
  border: 1px solid rgba(133,0,255,0.15);
}

.item-icon-cooling {
  background: rgba(87,158,240,0.08);
  border: 1px solid rgba(87,158,240,0.15);
}

.item-icon-cabinet {
  background: rgba(211,103,225,0.08);
  border: 1px solid rgba(211,103,225,0.15);
}

.item-icon-power {
  background: rgba(87,158,240,0.08);
  border: 1px solid rgba(87,158,240,0.15);
}

.item-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.item-name {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.item-desc {
  font-size: 0.65rem;
  color: var(--text-muted);
}

.sidebar-footer {
  margin-top: auto;
  padding: var(--space-md);
  border-top: 1px solid rgba(255,255,255,0.06);
}

.sidebar-footer-info {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

/* --- Canvas --- */
.config-canvas-wrapper {
  display: flex;
  flex-direction: column;
  background: var(--surface-100);
}

/* Toolbar */
.config-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-xs) var(--space-md);
  background: var(--surface-200);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  height: 44px;
  gap: var(--space-md);
}

.toolbar-left,
.toolbar-right {
  display: flex;
  align-items: center;
}

.toolbar-center {
  flex: 1;
  text-align: center;
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: 2px;
}

.toolbar-btn {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-tertiary);
  transition: all var(--duration-fast) var(--ease-in-out);
}

.toolbar-btn:hover {
  background: rgba(255,255,255,0.06);
  color: var(--text-primary);
}

.toolbar-btn.active {
  background: rgba(133,0,255,0.12);
  color: var(--dawn-purple);
}

.toolbar-divider {
  width: 1px;
  height: 20px;
  background: rgba(255,255,255,0.08);
  margin: 0 var(--space-xs);
}

/* Canvas */
.config-canvas {
  flex: 1;
  position: relative;
  overflow: hidden;
  cursor: crosshair;
}

.canvas-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 30px 30px;
  pointer-events: none;
}

.canvas-content {
  position: absolute;
  inset: 0;
}

/* Canvas Empty State */
.canvas-empty-state {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  z-index: 1;
  pointer-events: none;
  opacity: 1;
  transition: opacity var(--duration-normal) var(--ease-in-out);
}

.canvas-empty-state.hidden {
  opacity: 0;
  pointer-events: none;
}

.empty-state-icon {
  margin-bottom: var(--space-md);
}

/* Canvas Components */
.canvas-component {
  position: absolute;
  cursor: move;
  user-select: none;
  transition: box-shadow var(--duration-fast) var(--ease-in-out);
  z-index: 10;
}

.canvas-component:hover {
  z-index: 20;
}

.canvas-component.selected {
  z-index: 30;
}

.component-body {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  position: relative;
  overflow: hidden;
}

/* Component Types */
.component-rack .component-body {
  width: 60px;
  height: 80px;
  background: linear-gradient(180deg, rgba(133,0,255,0.12) 0%, rgba(133,0,255,0.04) 100%);
  border: 1.5px solid rgba(133,0,255,0.3);
}

.component-rack .component-body::after {
  content: '';
  position: absolute;
  inset: 4px;
  background: repeating-linear-gradient(
    180deg,
    rgba(133,0,255,0.08) 0px,
    rgba(133,0,255,0.08) 8px,
    transparent 8px,
    transparent 10px
  );
  border-radius: 2px;
}

.component-cooling .component-body {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, rgba(87,158,240,0.12) 0%, rgba(87,158,240,0.04) 100%);
  border: 1.5px solid rgba(87,158,240,0.3);
  border-radius: 50%;
}

.component-cooling .component-body::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(87,158,240,0.4);
  border-radius: 50%;
}

.component-containment .component-body {
  width: 80px;
  height: 40px;
  background: linear-gradient(135deg, rgba(211,103,225,0.1) 0%, rgba(211,103,225,0.03) 100%);
  border: 1.5px solid rgba(211,103,225,0.3);
}

.component-containment .component-body::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 4px;
  right: 4px;
  height: 2px;
  background: linear-gradient(90deg, var(--dawn-purple), var(--dawn-blue));
  opacity: 0.4;
  transform: translateY(-50%);
}

.component-power .component-body {
  width: 40px;
  height: 60px;
  background: linear-gradient(180deg, rgba(87,158,240,0.12) 0%, rgba(87,158,240,0.04) 100%);
  border: 1.5px solid rgba(87,158,240,0.3);
}

.component-power .component-body::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 12px;
  height: 16px;
  border: 2px solid rgba(87,158,240,0.4);
  border-radius: 2px;
}

/* Component Label */
.component-label {
  position: absolute;
  bottom: -20px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.55rem;
  color: var(--text-muted);
  white-space: nowrap;
  font-family: var(--font-mono);
  opacity: 0;
  transition: opacity var(--duration-fast) var(--ease-in-out);
  pointer-events: none;
}

.canvas-component:hover .component-label,
.canvas-component.selected .component-label {
  opacity: 1;
}

/* Selection handles */
.component-handle {
  position: absolute;
  width: 8px;
  height: 8px;
  background: var(--dawn-purple);
  border: 2px solid var(--surface-000);
  border-radius: 50%;
  display: none;
}

.canvas-component.selected .component-handle {
  display: block;
}

.component-handle-nw { top: -4px; left: -4px; cursor: nw-resize; }
.component-handle-ne { top: -4px; right: -4px; cursor: ne-resize; }
.component-handle-sw { bottom: -4px; left: -4px; cursor: sw-resize; }
.component-handle-se { bottom: -4px; right: -4px; cursor: se-resize; }

/* Snap Indicator */
.snap-indicator {
  position: absolute;
  pointer-events: none;
  z-index: 50;
}

.snap-line {
  position: absolute;
  background: var(--dawn-purple);
  opacity: 0.5;
  box-shadow: 0 0 8px rgba(133,0,255,0.4);
}

.snap-line-h {
  height: 1px;
  width: 100%;
}

.snap-line-v {
  width: 1px;
  height: 100%;
}

.snap-glow {
  position: absolute;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(133,0,255,0.4) 0%, transparent 70%);
  animation: pulse-glow 1s ease-in-out infinite;
}

/* Drag Ghost */
.drag-ghost {
  position: fixed;
  pointer-events: none;
  z-index: 1000;
  opacity: 0.8;
  transform: scale(1.05);
}

/* Status Bar */
.config-statusbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-xxs) var(--space-md);
  background: var(--surface-200);
  border-top: 1px solid rgba(255,255,255,0.06);
  height: 28px;
}

.statusbar-left,
.statusbar-center,
.statusbar-right {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* --- Summary Panel --- */
.config-summary {
  background: var(--surface-200);
  border-left: 1px solid rgba(255,255,255,0.06);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.summary-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.summary-toggle {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  transition: all var(--duration-fast) var(--ease-in-out);
}

.summary-toggle:hover {
  background: rgba(255,255,255,0.06);
  color: var(--text-primary);
}

.summary-content {
  flex: 1;
  padding: var(--space-md);
  overflow-y: auto;
}

.summary-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-3xl) var(--space-md);
}

/* BOM List */
.bom-category {
  margin-bottom: var(--space-md);
}

.bom-category-header {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) 0;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.bom-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-xs) var(--space-sm);
  background: rgba(255,255,255,0.03);
  border-radius: var(--radius-sm);
  margin-bottom: 2px;
}

.bom-item-info {
  display: flex;
  flex-direction: column;
}

.bom-item-name {
  font-size: var(--text-xs);
  color: var(--text-primary);
  font-weight: 500;
}

.bom-item-sku {
  font-size: 0.6rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.bom-item-qty {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--dawn-purple);
  font-family: var(--font-mono);
}

.summary-stat-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-xs) 0;
}

/* --- Onboarding Overlay --- */
.onboarding-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.8);
  backdrop-filter: blur(8px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s var(--ease-out-expo);
}

.onboarding-overlay.hidden {
  display: none;
}

.onboarding-card {
  width: 100%;
  max-width: 480px;
  background: var(--surface-300);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-2xl);
  padding: var(--space-3xl);
  text-align: center;
  position: relative;
}

.onboarding-step {
  display: none;
}

.onboarding-step.active {
  display: block;
  animation: fadeInUp 0.4s var(--ease-out-expo);
}

.onboarding-icon {
  margin-bottom: var(--space-lg);
}

.onboarding-step h4 {
  margin-bottom: var(--space-sm);
}

.onboarding-step p {
  font-size: var(--text-sm);
}

.onboarding-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-2xl);
}

.onboarding-dots {
  display: flex;
  gap: 6px;
}

.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  transition: all var(--duration-fast) var(--ease-in-out);
}

.dot.active {
  width: 20px;
  border-radius: 3px;
  background: var(--dawn-purple);
}

.onboarding-actions {
  display: flex;
  gap: var(--space-xs);
}

/* --- Quote Modal --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.8);
  backdrop-filter: blur(8px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s var(--ease-out-expo);
}

.modal-card {
  width: 100%;
  max-width: 520px;
  background: var(--surface-300);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) var(--space-xl);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  transition: all var(--duration-fast) var(--ease-in-out);
}

.modal-close:hover {
  background: rgba(255,255,255,0.06);
  color: var(--text-primary);
}

.modal-body {
  padding: var(--space-xl);
}

/* --- Loading State --- */
.quote-loading {
  text-align: center;
  padding: var(--space-3xl);
}

.loading-spinner {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-lg);
  border-radius: 50%;
  border: 3px solid rgba(255,255,255,0.06);
  border-top-color: var(--dawn-purple);
  animation: spin-slow 1s linear infinite;
}

/* --- Responsive --- */
@media (max-width: 1200px) {
  .config-layout {
    grid-template-columns: 240px 1fr 260px;
  }
}

@media (max-width: 1024px) {
  .config-layout {
    grid-template-columns: 1fr;
  }

  .config-sidebar {
    display: none;
  }

  .config-summary {
    display: none;
  }
}