/* ==========================================================================
   DIAGRAM STUDIO - COLOR WIRING & HARNESS CAD STYLESHEET
   ========================================================================== */

:root {
  --bg-dark: #0f172a;
  --panel-bg: #1e293b;
  --panel-bg-light: #334155;
  --border-color: #334155;
  --border-strong: #475569;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --accent-blue: #38bdf8;
  --accent-blue-hover: #0ea5e9;
  --accent-green: #22c55e;
  --accent-yellow: #fbbf24;
  --accent-red: #ef4444;
  --canvas-bg: #ffffff;
  --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

.modal-backdrop[hidden] {
  display: none !important;
}

body.studio-body {
  margin: 0;
  padding: 0;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-stack);
  font-size: 13px;
  display: flex;
  flex-direction: column;
  user-select: none;
}

/* ==========================================================================
   TOP HEADER & TOOLBAR
   ========================================================================== */
.studio-header {
  height: 48px;
  background: var(--panel-bg);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  flex-shrink: 0;
  z-index: 50;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 600;
  font-size: 12px;
  padding: 4px 8px;
  border-radius: 4px;
  transition: all 120ms ease;
}
.back-link:hover {
  background: var(--panel-bg-light);
  color: var(--text-main);
}
.back-link .icon {
  width: 14px;
  height: 14px;
}

.brand-divider {
  width: 1px;
  height: 20px;
  background: var(--border-color);
}

.studio-brand {
  display: flex;
  align-items: center;
  gap: 8px;
}
.brand-badge {
  background: var(--accent-blue);
  color: #0f172a;
  font-size: 10px;
  font-weight: 800;
  padding: 2px 5px;
  border-radius: 3px;
  letter-spacing: 0.05em;
}
.brand-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.01em;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.tool-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border-radius: 4px;
  border: 1px solid var(--border-color);
  background: var(--panel-bg);
  color: var(--text-main);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 120ms ease;
  white-space: nowrap;
}
.tool-btn:hover {
  background: var(--panel-bg-light);
  border-color: var(--border-strong);
}
.tool-btn .icon {
  width: 14px;
  height: 14px;
}
.tool-btn.primary-btn {
  background: #0284c7;
  border-color: #0369a1;
  color: #ffffff;
  font-weight: 600;
}
.tool-btn.primary-btn:hover {
  background: #0ea5e9;
}
.tool-btn.small {
  padding: 3px 8px;
  font-size: 11px;
}
.tool-btn.danger {
  color: #fca5a5;
  border-color: #7f1d1d;
}
.tool-btn.danger:hover {
  background: #991b1b;
  color: #fff;
}

.header-separator {
  width: 1px;
  height: 20px;
  background: var(--border-color);
  margin: 0 4px;
}

.tool-group {
  display: flex;
  align-items: center;
  gap: 4px;
}

.toolbar-label {
  font-size: 11px;
  color: var(--text-muted);
}
.toolbar-select {
  background: var(--bg-dark);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 3px 6px;
  border-radius: 4px;
  font-size: 11px;
}

.icon-toggle {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  border-radius: 4px;
  padding: 3px 6px;
  font-size: 11px;
  cursor: pointer;
}
.icon-toggle.active {
  background: rgba(56, 189, 248, 0.15);
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--panel-bg);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  cursor: pointer;
  border-radius: 4px;
  width: 26px;
  height: 26px;
  padding: 0;
  font-size: 12px;
}
.icon-btn:hover {
  background: var(--panel-bg-light);
}
.icon-btn.small {
  width: 22px;
  height: 22px;
}

.zoom-display {
  font-size: 11px;
  color: var(--text-muted);
  min-width: 38px;
  text-align: center;
}

.dropdown-wrap {
  position: relative;
}
.dropdown-panel {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  background: var(--panel-bg);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  padding: 4px 0;
  min-width: 190px;
  z-index: 100;
}
.dropdown-item {
  width: 100%;
  padding: 7px 12px;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 12px;
  text-align: left;
  cursor: pointer;
}
.dropdown-item:hover {
  background: var(--panel-bg-light);
  color: var(--accent-blue);
}

/* ==========================================================================
   WORKSPACE LAYOUT (3 PANELS)
   ========================================================================== */
.studio-workspace {
  display: flex;
  flex: 1;
  overflow: hidden;
  position: relative;
}

/* --- LEFT PANEL: PALETTE --- */
.palette-panel {
  width: 290px;
  background: var(--panel-bg);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.palette-header {
  padding: 12px 14px 6px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.palette-header h2 {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-main);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.palette-count {
  font-size: 11px;
  color: var(--text-muted);
  background: var(--bg-dark);
  padding: 2px 6px;
  border-radius: 10px;
}

.palette-search-wrap {
  padding: 6px 12px;
}
.palette-search-wrap input {
  width: 100%;
  padding: 6px 10px;
  background: var(--bg-dark);
  border: 1px solid var(--border-color);
  border-radius: 5px;
  color: var(--text-main);
  font-size: 12px;
}
.palette-search-wrap input:focus {
  outline: 1px solid var(--accent-blue);
}

.palette-filters {
  display: flex;
  gap: 4px;
  padding: 4px 12px 8px;
  overflow-x: auto;
  scrollbar-width: none;
}
.palette-filters::-webkit-scrollbar { display: none; }

.filter-pill {
  padding: 3px 8px;
  background: var(--bg-dark);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  color: var(--text-muted);
  font-size: 10.5px;
  cursor: pointer;
  white-space: nowrap;
}
.filter-pill:hover {
  color: var(--text-main);
  border-color: var(--border-strong);
}
.filter-pill.active {
  background: var(--accent-blue);
  color: #0f172a;
  border-color: var(--accent-blue);
  font-weight: 600;
}

.palette-list {
  flex: 1;
  overflow-y: auto;
  padding: 6px 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footprint-card {
  background: var(--bg-dark);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 8px 10px;
  cursor: grab;
  transition: all 120ms ease;
  display: flex;
  align-items: center;
  gap: 10px;
}
.footprint-card:hover {
  border-color: var(--accent-blue);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}
.footprint-card:active {
  cursor: grabbing;
}
.card-icon {
  width: 44px;
  height: 38px;
  background: #f8fafc;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
  padding: 2px;
}
.card-icon svg {
  max-width: 100%;
  max-height: 100%;
}
.card-info {
  flex: 1;
  min-width: 0;
}
.card-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.card-meta {
  display: flex;
  gap: 6px;
  margin-top: 3px;
  font-size: 10px;
  color: var(--text-muted);
}
.badge-pins {
  background: rgba(56, 189, 248, 0.12);
  color: var(--accent-blue);
  padding: 1px 4px;
  border-radius: 3px;
}

/* --- CENTER PANEL: CANVAS --- */
.canvas-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  position: relative;
  background: #e2e8f0;
  overflow: hidden;
}

.canvas-floating-toolbar {
  position: absolute;
  top: 14px;
  left: 20px;
  background: rgba(30, 41, 59, 0.94);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 4px 10px;
  display: flex;
  align-items: center;
  gap: 4px;
  z-index: 20;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(6px);
}
.tool-mode-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 11.5px;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 5px;
  transition: all 120ms ease;
}
.tool-mode-btn:hover {
  color: var(--text-main);
}
.tool-mode-btn.active {
  background: var(--accent-blue);
  color: #0f172a;
}
.tool-mode-btn.danger:hover {
  color: #ef4444;
}
.canvas-tool-divider {
  width: 1px;
  height: 16px;
  background: var(--border-color);
  margin: 0 4px;
}

.canvas-viewport {
  flex: 1;
  overflow: auto;
  position: relative;
  cursor: crosshair;
}
.canvas-viewport.panning {
  cursor: grab;
}
.canvas-viewport.panning:active {
  cursor: grabbing;
}

.schematic-canvas {
  display: block;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.15);
  background: #ffffff;
}

/* SVG INTERACTIVE STYLES */
.schematic-canvas .component-group {
  cursor: move;
}
.schematic-canvas .component-group.selected rect.comp-body {
  stroke: var(--accent-blue) !important;
  stroke-width: 2px !important;
}
.schematic-canvas .pin-anchor {
  cursor: pointer;
  transition: r 120ms ease;
}
.schematic-canvas .pin-anchor:hover,
.schematic-canvas .pin-anchor.snap-target {
  r: 6px !important;
  fill: #fbbf24 !important;
  stroke: #b45309 !important;
}

.schematic-canvas .wire-path {
  cursor: pointer;
  transition: stroke-width 100ms ease;
}
.schematic-canvas .wire-path:hover {
  stroke-width: 4px !important;
}
.schematic-canvas .wire-group.selected .wire-path {
  stroke: #fbbf24 !important;
  stroke-width: 4px !important;
}
.schematic-canvas .splice-dot {
  cursor: pointer;
}
.schematic-canvas .splice-dot:hover {
  r: 5px !important;
  fill: #fbbf24 !important;
}

/* --- BOTTOM WIRE SCHEDULE DRAWER --- */
.bottom-toggle-bar {
  height: 28px;
  background: var(--panel-bg);
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  padding: 0 14px;
}
.bottom-bar-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11.5px;
  font-weight: 600;
  cursor: pointer;
}
.bottom-bar-btn:hover {
  color: var(--text-main);
}

.schedule-drawer {
  height: 220px;
  background: var(--panel-bg);
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
}
.drawer-header {
  padding: 8px 14px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.drawer-header h3 {
  margin: 0;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-main);
}
.drawer-actions {
  display: flex;
  gap: 8px;
}
.drawer-table-wrap {
  flex: 1;
  overflow-y: auto;
}
.schedule-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11.5px;
  text-align: left;
}
.schedule-table th {
  background: var(--bg-dark);
  color: var(--text-muted);
  font-weight: 600;
  padding: 6px 12px;
  position: sticky;
  top: 0;
  border-bottom: 1px solid var(--border-color);
}
.schedule-table td {
  padding: 6px 12px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-main);
}
.schedule-table tr:hover td {
  background: rgba(255, 255, 255, 0.03);
}
.empty-row td {
  text-align: center;
  color: var(--text-muted);
  padding: 24px;
}

/* --- RIGHT PANEL: PROPERTY INSPECTOR --- */
.inspector-panel {
  width: 280px;
  background: var(--panel-bg);
  border-left: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}
.inspector-header {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-color);
}
.inspector-header h2 {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-main);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.inspector-content {
  flex: 1;
  overflow-y: auto;
  padding: 14px;
}
.inspector-empty {
  color: var(--text-muted);
  font-size: 12px;
  line-height: 1.5;
  text-align: center;
  padding: 40px 10px;
}

.inspector-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.section-title {
  margin: 0 0 4px;
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-blue);
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.form-row label {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 500;
}
.form-row input[type="text"],
.form-row select {
  padding: 6px 8px;
  background: var(--bg-dark);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-main);
  font-size: 12px;
}
.form-row input[type="text"]:focus,
.form-row select:focus {
  outline: 1px solid var(--accent-blue);
}

.check-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  color: var(--text-main) !important;
}

.color-palette-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 6px;
  margin-top: 2px;
}
.color-swatch-btn {
  height: 24px;
  border-radius: 4px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 100ms ease;
}
.color-swatch-btn:hover {
  transform: scale(1.15);
}
.color-swatch-btn.selected {
  border-color: #ffffff;
  box-shadow: 0 0 0 1px #000000;
}
.color-selected-label {
  font-size: 10.5px;
  color: var(--text-muted);
  margin-top: 2px;
}

.wire-live-swatch {
  height: 18px;
  background: #0f172a;
  border-radius: 4px;
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  border: 1px solid var(--border-color);
}
.swatch-base {
  position: absolute;
  inset: 0;
  background: #E11D48;
}
.swatch-tracer {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(45deg, transparent, transparent 10px, #ffffff 10px, #ffffff 16px);
  opacity: 0.9;
}

.wire-terms-display {
  font-size: 11px;
  background: var(--bg-dark);
  padding: 6px 8px;
  border-radius: 4px;
  border: 1px solid var(--border-color);
  color: var(--text-muted);
}

.btn-grid-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

.pins-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 180px;
  overflow-y: auto;
}
.pin-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-dark);
  padding: 4px 8px;
  border-radius: 3px;
  font-size: 11px;
}

/* ==========================================================================
   MODALS & TOAST
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 20px;
}
.modal-backdrop[hidden] {
  display: none !important;
}
.modal-dialog {
  background: var(--panel-bg);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  width: 100%;
  max-width: 520px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.modal-header {
  padding: 12px 18px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.modal-title {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
}
.modal-body {
  padding: 18px;
  overflow-y: auto;
  font-size: 13px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.modal-intro {
  margin: 0 0 6px;
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.4;
}
.modal-footer {
  padding: 12px 18px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.shortcuts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 16px;
}
.shortcut-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 0;
  border-bottom: 1px dashed var(--border-color);
}
kbd {
  background: var(--bg-dark);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 11px;
  font-family: monospace;
  font-weight: 600;
}

.studio-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: #0284c7;
  color: #ffffff;
  padding: 8px 18px;
  border-radius: 20px;
  font-size: 12.5px;
  font-weight: 600;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  z-index: 300;
  animation: fadeIn 150ms ease;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translate(-50%, 8px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

/* CAD Pro & Annotations Styling */
.schematic-canvas .annotation-group {
  cursor: move;
  user-select: none;
}
.schematic-canvas .annotation-group:hover text {
  fill: var(--accent-blue) !important;
}
.schematic-canvas .annotation-group.selected rect.anno-box {
  stroke: var(--accent-blue) !important;
  stroke-width: 1.5px !important;
  stroke-dasharray: 4 4;
}

.schematic-canvas .lasso-box {
  fill: rgba(56, 189, 248, 0.12);
  stroke: #38bdf8;
  stroke-width: 1.5px;
  stroke-dasharray: 4 4;
  pointer-events: none;
}

.schematic-canvas .waypoint-handle {
  fill: #38bdf8;
  stroke: #0284c7;
  stroke-width: 1.5px;
  cursor: move;
  transition: r 120ms ease;
}
.schematic-canvas .waypoint-handle:hover {
  r: 6px;
  fill: #fbbf24;
  stroke: #b45309;
}

.schematic-canvas .segment-handle {
  fill: #ffffff;
  stroke: #38bdf8;
  stroke-width: 2px;
  cursor: pointer;
  transition: r 120ms ease;
}
.schematic-canvas .segment-handle:hover {
  r: 5px;
  fill: #fbbf24;
}

.erc-issue-row {
  cursor: pointer;
  transition: transform 120ms ease, background 120ms ease;
}
.erc-issue-row:hover {
  transform: translateX(4px);
  filter: brightness(1.15);
}