/* ==========================================================================
   ProjectSolar - Interactive Solar System Builder & SLD Designer Styles
   ========================================================================== */

.builder-header-bar {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: 0.85rem 1.75rem 0.75rem 1.75rem;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  position: relative;
  z-index: 10;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] .builder-header-bar {
  background: linear-gradient(180deg, #101726 0%, #0d131f 100%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

[data-theme="light"] .builder-header-bar {
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

/* Header Top Row */
.builder-header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.builder-title-group {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
}

.builder-title-row {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.builder-icon-pulse {
  width: 32px;
  height: 32px;
  border-radius: 9px;
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.24) 0%, rgba(217, 119, 6, 0.12) 100%);
  border: 1px solid rgba(245, 158, 11, 0.45);
  color: var(--primary-solar);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.05rem;
  box-shadow: 0 0 14px rgba(245, 158, 11, 0.22);
  flex-shrink: 0;
}

.builder-title-group h1 {
  font-size: 1.25rem;
  font-weight: 800;
  margin: 0;
  color: var(--text-main);
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.builder-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.2rem 0.65rem;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.32);
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent-green);
  user-select: none;
}

.status-pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: pulseGreen 2.2s infinite;
}

@keyframes pulseGreen {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.75); }
  70% { box-shadow: 0 0 0 7px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.builder-version-chip {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  background: var(--bg-card-subtle);
  color: var(--text-dim);
  border: 1px solid var(--border-color);
  letter-spacing: 0.02em;
  user-select: none;
}

.builder-subtitle {
  font-size: 0.81rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.45;
}

.builder-header-actions {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex-shrink: 0;
}

.header-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.42rem 0.95rem;
  font-size: 0.8rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.header-action-btn.btn-primary {
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  color: #ffffff;
  border: 1px solid rgba(245, 158, 11, 0.6);
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.3);
}

.header-action-btn.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(245, 158, 11, 0.45);
}

.header-action-btn.btn-secondary {
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-main);
}

.header-action-btn.btn-secondary:hover {
  border-color: var(--primary-solar);
  color: var(--primary-solar);
  transform: translateY(-1px);
}

/* Unified Workspace Control Toolbar */
.builder-toolbar-container {
  width: 100%;
}

.builder-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
  background: var(--bg-card-subtle);
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] .builder-toolbar {
  background: rgba(19, 28, 46, 0.75);
  border-color: rgba(255, 255, 255, 0.08);
}

[data-theme="light"] .builder-toolbar {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.08);
}

.toolbar-section {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.toolbar-section-left {
  flex-shrink: 0;
}

.toolbar-toggle-btn {
  border-radius: var(--radius-sm);
  padding: 0.32rem 0.7rem;
  font-size: 0.78rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  transition: all var(--transition-fast);
}

.toolbar-toggle-btn:hover {
  border-color: var(--primary-solar);
  color: var(--primary-solar);
}

.toolbar-divider {
  width: 1px;
  height: 20px;
  background: var(--border-color);
  display: inline-block;
  margin: 0 0.15rem;
}

.toolbar-meta-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.22rem 0.55rem;
  border-radius: 4px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-dim);
  user-select: none;
}

/* Center Presets Zone */
.toolbar-section-center {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.toolbar-section-label {
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--text-dim);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  user-select: none;
}

.toolbar-preset-group {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--bg-card);
  padding: 0.2rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.preset-pill-btn {
  border-radius: 4px;
  padding: 0.28rem 0.65rem;
  font-size: 0.78rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: transparent;
  color: var(--text-muted);
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  cursor: pointer;
  user-select: none;
}

.preset-pill-btn:hover {
  color: var(--text-main);
  background: var(--bg-card-subtle);
  border-color: var(--border-color);
}

.preset-pill-btn.active,
.preset-pill-btn[data-preset].active {
  background: var(--primary-solar) !important;
  color: #ffffff !important;
  font-weight: 700;
  border-color: var(--primary-solar) !important;
  box-shadow: 0 2px 10px rgba(245, 158, 11, 0.35);
}

.preset-icon {
  font-size: 0.85rem;
  line-height: 1;
}

.preset-tag-popular {
  font-size: 0.62rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
  background: rgba(0, 0, 0, 0.25);
  color: #ffffff;
  margin-left: 0.15rem;
}

/* Right Utility Zone */
.toolbar-section-right {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-shrink: 0;
}

.toolbar-tool-btn {
  border-radius: var(--radius-sm);
  padding: 0.32rem 0.7rem;
  font-size: 0.78rem;
  font-weight: 600;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  transition: all var(--transition-fast);
}

.toolbar-tool-btn:hover {
  border-color: var(--primary-solar);
  color: var(--primary-solar);
}

.btn-clear-canvas {
  border-radius: var(--radius-sm);
  padding: 0.32rem 0.65rem;
  font-size: 0.78rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: rgba(239, 68, 68, 0.1);
  color: var(--accent-red);
  border: 1px solid rgba(239, 68, 68, 0.28);
  transition: all var(--transition-fast);
}

.btn-clear-canvas:hover {
  background: rgba(239, 68, 68, 0.18);
  border-color: rgba(239, 68, 68, 0.5);
  color: #ef4444;
}

@media (max-width: 1024px) {
  .builder-header-top {
    flex-direction: column;
    align-items: flex-start;
  }
  .builder-header-actions {
    width: 100%;
    justify-content: flex-start;
  }
  .builder-toolbar {
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
  }
  .toolbar-section {
    width: 100%;
    justify-content: space-between;
  }
  .toolbar-preset-group {
    width: 100%;
    justify-content: space-between;
  }
  .preset-pill-btn {
    flex: 1;
    justify-content: center;
  }
}

.builder-main-container {
  display: grid;
  grid-template-columns: 290px 1fr 340px;
  min-height: calc(100vh - 125px);
  background: var(--bg-body);
  position: relative;
  overflow: hidden;
  box-sizing: border-box;
  transition: grid-template-columns 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

.builder-main-container.palette-collapsed {
  grid-template-columns: 0px 1fr 340px;
}

@media (max-width: 1200px) {
  .builder-main-container {
    grid-template-columns: 260px 1fr 310px;
  }
  .builder-main-container.palette-collapsed {
    grid-template-columns: 0px 1fr 310px;
  }
}

@media (max-width: 900px) {
  .builder-main-container {
    grid-template-columns: 240px 1fr 280px;
  }
  .builder-main-container.palette-collapsed {
    grid-template-columns: 0px 1fr 280px;
  }
}

@media (max-width: 768px) {
  .builder-main-container {
    grid-template-columns: 1fr;
    height: auto;
    overflow: visible;
  }
}

/* ==========================================================================
   Left Sidebar: Equipment Palette Library
   ========================================================================== */
.palette-sidebar {
  background: var(--bg-body);
  border-right: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
  max-height: calc(100vh - 125px);
  padding: 1.15rem 1rem;
  gap: 1.15rem;
  box-sizing: border-box;
  width: 290px;
  min-width: 0;
  transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.2s ease;
}

[data-theme="light"] .palette-sidebar {
  border-right: 1px solid rgba(0, 0, 0, 0.06);
}

.builder-main-container.palette-collapsed .palette-sidebar {
  transform: translateX(-290px);
  opacity: 0;
  pointer-events: none;
  border-right-color: transparent;
}

/* Sidebar Header & Toggle Button */
.palette-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: -0.25rem;
}

.palette-header-title {
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.btn-toggle-palette {
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.3rem 0.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  transition: all var(--transition-fast);
}

.btn-toggle-palette:hover {
  color: var(--primary-solar);
  border-color: var(--primary-solar);
  background: rgba(245, 158, 11, 0.12);
}

/* Floating tab on canvas when palette is collapsed */
.palette-floating-tab {
  position: absolute;
  top: 1rem;
  left: 1rem;
  z-index: 30;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-md);
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.palette-floating-tab:hover {
  border-color: var(--primary-solar);
  color: var(--primary-solar);
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.2);
  transform: translateX(2px);
}

.palette-section-title {
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.palette-items-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.palette-item-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.75rem 0.85rem;
  cursor: grab;
  transition: all var(--transition-fast);
  user-select: none;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  position: relative;
  box-sizing: border-box;
  width: 100%;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.palette-item-card:hover {
  border-color: var(--primary-solar);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.12);
}

.palette-item-card:active {
  cursor: grabbing;
}

.palette-item-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.palette-item-header {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.palette-item-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  background: rgba(245, 158, 11, 0.12);
  color: var(--primary-solar);
  flex-shrink: 0;
}

.palette-item-title {
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.2;
}

.palette-item-desc {
  font-size: 0.74rem;
  color: var(--text-muted);
  line-height: 1.35;
}

.palette-item-action {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.2rem;
  padding-top: 0.35rem;
  border-top: 1px dashed var(--border-color);
}

.palette-item-badge {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  background: rgba(56, 189, 248, 0.12);
  color: var(--accent-blue);
}

.btn-add-item {
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--primary-solar);
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  transition: background var(--transition-fast);
}

.btn-add-item:hover {
  background: rgba(245, 158, 11, 0.12);
}


/* ==========================================================================
   Center Panel: Interactive Canvas & Wiring Grid
   ========================================================================== */
.canvas-wrapper {
  position: relative;
  background-color: var(--bg-body);
  background-image: 
    radial-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 24px 24px, 120px 120px, 120px 120px;
  overflow: auto;
  display: flex;
  flex-direction: column;
}

[data-theme="light"] .canvas-wrapper {
  background-image: 
    radial-gradient(rgba(0, 0, 0, 0.08) 1px, transparent 1px),
    linear-gradient(to right, rgba(0, 0, 0, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 0, 0, 0.03) 1px, transparent 1px);
}

.canvas-floating-controls {
  position: sticky;
  top: 1rem;
  left: 1rem;
  z-index: 25;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: var(--bg-card);
  padding: 0.4rem 0.65rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  margin: 1rem 1rem 0 1rem;
  width: fit-content;
}

.canvas-board {
  flex: 1;
  min-height: 720px;
  position: relative;
  padding: 1.5rem;
}

/* SVG Circuit Wires Overlay */
.circuit-svg-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.wire-path {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: stroke 0.3s ease;
}

.wire-path.wire-dc {
  stroke: #f59e0b;
  stroke-width: 3.5;
  filter: drop-shadow(0 0 5px rgba(245, 158, 11, 0.5));
}

.wire-path.wire-bat {
  stroke: #10b981;
  stroke-width: 3.5;
  filter: drop-shadow(0 0 5px rgba(16, 185, 129, 0.5));
}

.wire-path.wire-ac {
  stroke: #38bdf8;
  stroke-width: 3.5;
  filter: drop-shadow(0 0 5px rgba(56, 189, 248, 0.5));
}

.wire-path.wire-grid {
  stroke: #a855f7;
  stroke-width: 3.5;
  filter: drop-shadow(0 0 5px rgba(168, 85, 247, 0.5));
}

.wire-path.wire-ats {
  stroke: #eab308;
  stroke-width: 3.5;
  filter: drop-shadow(0 0 5px rgba(234, 179, 8, 0.5));
}

.wire-path.wire-meter {
  stroke: #6366f1;
  stroke-width: 3.5;
  filter: drop-shadow(0 0 5px rgba(99, 102, 241, 0.5));
}

/* Animated flow dashes */
.wire-animated {
  stroke-dasharray: 8 6;
  animation: wireFlow 1.2s linear infinite;
}

@keyframes wireFlow {
  to {
    stroke-dashoffset: -28;
  }
}

/* Placed Node Cards on Canvas */
.placed-nodes-grid {
  position: relative;
  z-index: 5;
  width: 100%;
  min-height: 880px;
}

.canvas-node {
  background: var(--bg-card);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  width: 250px;
  box-shadow: var(--shadow-md);
  position: absolute;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  cursor: grab;
  user-select: none;
  touch-action: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.canvas-node:hover {
  border-color: var(--primary-solar);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
}

.canvas-node.is-dragging {
  cursor: grabbing;
  z-index: 40 !important;
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.5), 0 0 0 2px var(--primary-solar);
  transform: scale(1.02);
}

.node-drag-handle {
  cursor: grab;
  color: var(--text-dim);
  font-size: 0.95rem;
  margin-right: 0.2rem;
  user-select: none;
  display: inline-flex;
  align-items: center;
}

.canvas-node.node-pv {
  border-top: 4px solid #f59e0b;
}

.canvas-node.node-inverter {
  border-top: 4px solid #38bdf8;
}

.canvas-node.node-battery {
  border-top: 4px solid #10b981;
}

.canvas-node.node-protection {
  border-top: 4px solid #ef4444;
}

.canvas-node.node-dc-mccb {
  border-top: 4px solid #f97316;
}

.canvas-node.node-battery-breaker {
  border-top: 4px solid #14b8a6;
}

.canvas-node.node-ats {
  border-top: 4px solid #eab308;
}

.canvas-node.node-disconnect {
  border-top: 4px solid #ec4899;
}

.canvas-node.node-distribution {
  border-top: 4px solid #06b6d4;
}

.canvas-node.node-meter {
  border-top: 4px solid #6366f1;
}

.canvas-node.node-loads {
  border-top: 4px solid #8b5cf6;
}

.canvas-node.node-grid {
  border-top: 4px solid #a855f7;
}

.node-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.node-title-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.node-icon {
  font-size: 1.25rem;
}

.node-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.2;
}

.node-remove-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 1.15rem;
  line-height: 1;
  padding: 0.2rem;
  border-radius: 4px;
  transition: color var(--transition-fast);
}

.node-remove-btn:hover {
  color: var(--accent-red);
}

.node-body {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.node-spec-line {
  font-size: 0.74rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.node-control-stepper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.25rem 0.5rem;
  margin-top: 0.25rem;
}

.stepper-btn {
  width: 24px;
  height: 24px;
  border-radius: 4px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.stepper-btn:hover {
  background: var(--primary-solar);
  color: #fff;
}

.stepper-label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-main);
}

.node-terminal-dot {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #f59e0b;
  border: 2px solid var(--bg-card);
}

.node-terminal-dot.top {
  top: -6px;
  left: 50%;
  transform: translateX(-50%);
}

.node-terminal-dot.bottom {
  bottom: -6px;
  left: 50%;
  transform: translateX(-50%);
}

.canvas-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 480px;
  text-align: center;
  color: var(--text-muted);
  gap: 0.75rem;
}

/* ==========================================================================
   Right Sidebar: Live Engineering Inspector & HUD
   ========================================================================== */
.inspector-sidebar {
  background: var(--bg-body);
  border-left: 1px solid rgba(255, 255, 255, 0.06);
  overflow-y: auto;
  max-height: calc(100vh - 125px);
  padding: 1.15rem 1.15rem;
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
  box-sizing: border-box;
  width: 100%;
}

[data-theme="light"] .inspector-sidebar {
  border-left: 1px solid rgba(0, 0, 0, 0.06);
}

.hud-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.hud-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
}

.hud-title {
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.metric-highlight {
  display: flex;
  flex-direction: column;
}

.metric-highlight .val {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--primary-solar);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.metric-highlight .sub {
  font-size: 0.74rem;
  color: var(--text-muted);
}

.specs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
}

.spec-cell {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.65rem;
  display: flex;
  flex-direction: column;
}

.spec-cell .lbl {
  font-size: 0.68rem;
  color: var(--text-dim);
  text-transform: uppercase;
  font-weight: 600;
}

.spec-cell .val {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-main);
  margin-top: 0.15rem;
}

/* Rule Validation List */
.rule-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.rule-item {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  font-size: 0.76rem;
  line-height: 1.35;
  padding: 0.45rem 0.6rem;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
}

.rule-item.pass {
  border-left: 3px solid var(--accent-green);
  color: var(--text-main);
}

.rule-item.warn {
  border-left: 3px solid var(--primary-solar);
  background: rgba(245, 158, 11, 0.06);
  color: var(--text-main);
}

.rule-item.alert {
  border-left: 3px solid var(--accent-red);
  background: rgba(239, 68, 68, 0.06);
  color: var(--accent-red);
}

/* Action CTA Buttons in HUD */
.hud-actions {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-top: auto;
}

/* ==========================================================================
   Turnkey Quote & Engineering Proposal Modal
   ========================================================================== */
#builderQuoteModal.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(3, 7, 18, 0.78);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.22s ease, visibility 0.22s ease;
}

#builderQuoteModal.open {
  opacity: 1 !important;
  visibility: visible !important;
  pointer-events: auto !important;
}

#builderQuoteModal .modal-dialog {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
  width: 100%;
  max-width: 540px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  transform: scale(0.96) translateY(10px);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

#builderQuoteModal.open .modal-dialog {
  transform: scale(1) translateY(0);
}