@import url('https://fonts.googleapis.com/css2?family=Space+Mono:wght@400;700&family=DM+Sans:wght@300;400;500;600&display=swap');
/* Ellipsis and no line break for prop-content children */
#prop-content > * {
  display: block;
}
/* Scrollbar style for prop-content to match layer-list */
#prop-content::-webkit-scrollbar { width: 4px; }
#prop-content::-webkit-scrollbar-track { background: transparent; }
#prop-content::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

:root {
  --bg: #0d0f14;
  --panel: #13161d;
  --panel2: #1a1e28;
  --border: #252a38;
  --accent: #3d8eff;
  --accent2: #00e5c0;
  --warn: #ff6b35;
  --text: #e8eaf0;
  --muted: #6b7280;
  --glow: rgba(61,142,255,0.15);
}

.icon {
  display: inline-block;
  width: 1em;
  height: 1em;
  flex-shrink: 0;
  background-color: currentColor;
  -webkit-mask-image: var(--icon-url);
  -webkit-mask-repeat: no-repeat;
  -webkit-mask-position: center;
  -webkit-mask-size: contain;
  mask-image: var(--icon-url);
  mask-repeat: no-repeat;
  mask-position: center;
  mask-size: contain;
}

.icon-toolbar { width: 14px; height: 14px; }
.icon-tab { width: 14px; height: 14px; }
.icon-focus { width: 11px; height: 11px; }
.icon-search { width: 16px; height: 16px; }
.icon-upload { width: 14px; height: 14px; }
.icon-context { width: 16px; height: 16px; }
.icon-no-selection { width: 40px; height: 40px; opacity: 0.3; }
.icon-control { width: 14px; height: 14px; }

.icon-section { --icon-url: url('assets/icons/section.svg'); }
.icon-reset { --icon-url: url('assets/icons/reset.svg'); }
.icon-wire { --icon-url: url('assets/icons/wire.svg'); }
.icon-xray { --icon-url: url('assets/icons/xray.svg'); }
.icon-upload { --icon-url: url('assets/icons/upload.svg'); }
.icon-search { --icon-url: url('assets/icons/search.svg'); }
.icon-no-selection { --icon-url: url('assets/icons/no-selection.svg'); }
.icon-focus { --icon-url: url('assets/icons/focus.svg'); }
.icon-chevron-left { --icon-url: url('assets/icons/chevron-left.svg'); }
.icon-chevron-right { --icon-url: url('assets/icons/chevron-right.svg'); }
.icon-tab-ifc-types { --icon-url: url('assets/icons/tab-ifc-types.svg'); }
.icon-tab-categories { --icon-url: url('assets/icons/tab-categories.svg'); }
.icon-tab-materials { --icon-url: url('assets/icons/tab-materials.svg'); }
.icon-tab-systems { --icon-url: url('assets/icons/tab-systems.svg'); }
.icon-tab-families { --icon-url: url('assets/icons/tab-families.svg'); }
.icon-tab-storeys { --icon-url: url('assets/icons/tab-storeys.svg'); }
.icon-tab-hierarchy { --icon-url: url('assets/icons/tab-hierarchy.svg'); }
.icon-isolation-exit { --icon-url: url('assets/icons/isolation-exit.svg'); }
.icon-isolate-object { --icon-url: url('assets/icons/isolate-object.svg'); }
.icon-isolate-classification { --icon-url: url('assets/icons/isolate-classification.svg'); }
.icon-collapse-all { --icon-url: url('assets/icons/collapse-all.svg'); }
.icon-expand-all { --icon-url: url('assets/icons/expand-all.svg'); }

* { margin:0; padding:0; box-sizing:border-box; }
*:focus-visible { outline: 2px solid var(--accent2); outline-offset: 2px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  overflow: hidden;
  height: 100vh;
  display: flex;
  flex-direction: column;
  min-width: 320px;
}

@media (max-width: 900px) {
  .left-panel, .right-panel { display: none !important; }
  .workspace { flex-direction: column; }
  .canvas-wrap { min-height: 300px; }
  footer { font-size: 9px; }
  .resize-handle { display: none; }
}

/* TOP BAR */
header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 20px;
  height: 52px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  z-index: 100;
}
.logo {
  font-family: 'Space Mono', monospace;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
  flex-shrink: 0;
}
.logo span { color: var(--accent2); }

.toolbar {
  display: flex;
  gap: 4px;
  margin-left: 8px;
}
.toolbar-btn {
  padding: 5px 12px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  font-family: 'DM Sans', sans-serif;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  gap: 6px;
}
.toolbar-btn:hover, .toolbar-btn.active {
  background: var(--glow);
  color: var(--text);
  border-color: var(--accent);
}
.toolbar-btn .icon { width:14px; height:14px; flex-shrink:0; }

.sep { width: 1px; height: 24px; background: var(--border); margin: 0 4px; }

.ifc-upload-btn {
  margin-left: auto;
  padding: 6px 16px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  font-family: 'DM Sans', sans-serif;
  display: flex; align-items: center; gap: 6px;
  transition: opacity 0.15s;
}
.ifc-upload-btn:hover { opacity: 0.85; }
#ifc-file { display: none; }

/* MAIN LAYOUT */
.workspace {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* LEFT PANEL */
.left-panel {
  width: 310px;
  background: var(--panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  overflow: hidden;
}
.panel-header {
  padding: 12px 16px;
  font-size: 10px;
  font-family: 'Space Mono', monospace;
  color: var(--muted);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.panel-header .count {
  background: var(--panel2);
  padding: 2px 7px;
  border-radius: 10px;
  font-size: 10px;
  color: var(--accent2);
}

/* Onglets panneau gauche */
.left-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 8px;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.01), rgba(255,255,255,0.00)),
    linear-gradient(90deg, rgba(61,142,255,0.04), rgba(0,229,192,0.03));
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.ltab {
  flex: 1 0 25%;
  min-width: 0;
  min-height: 34px;
  padding: 6px 2px;
  background: linear-gradient(180deg, rgba(24,28,38,0.95), rgba(16,19,27,0.98));
  border: 1px solid rgba(88,99,121,0.42);
  border-bottom-color: rgba(88,99,121,0.52);
  border-radius: 10px;
  color: var(--muted);
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.03), 0 8px 18px rgba(0,0,0,0.16);
  transition: color 0.16s, border-color 0.16s, background 0.16s, box-shadow 0.16s, transform 0.16s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.ltab .icon { width: 14px; height: 14px; flex-shrink: 0; }
.ltab:hover {
  color: var(--text);
  border-color: rgba(61,142,255,0.55);
  background: linear-gradient(180deg, rgba(31,40,56,0.98), rgba(18,23,33,1));
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.05), 0 10px 24px rgba(7,12,18,0.28), 0 0 0 1px rgba(61,142,255,0.08);
  transform: translateY(-1px);
}
.ltab.active {
  color: var(--accent);
  border-color: rgba(61,142,255,0.75);
  background: linear-gradient(180deg, rgba(33,53,84,0.95), rgba(18,30,48,1));
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.06), 0 12px 28px rgba(6,12,20,0.32), 0 0 0 1px rgba(61,142,255,0.16);
}
.tbadge {
  background: var(--panel2);
  padding: 1px 5px;
  border-radius: 8px;
  font-size: 9px;
  color: var(--accent2);
}

/* Écran d'accueil */
.welcome-screen {
  padding: 20px 14px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.7;
}
.welcome-screen .feat {
  font-family: 'Space Mono', monospace;
  font-size: 9.5px;
  color: #374151;
  line-height: 2.1;
  margin-top: 12px;
}
.welcome-screen .feat span { color: var(--accent2); }

.layer-list {
  overflow-y: auto;
  flex: 1;
  padding: 8px;
}

#layer-controls {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 6px 8px;
  flex-shrink: 0;
  border-bottom: 1px solid var(--border);
}
#layer-controls:empty { display: none; }
.layer-controls-actions {
  display: flex;
  gap: 6px;
}
#layer-controls button {
  flex: 1;
  padding: 5px 0;
  font-size: 11px;
  font-family: 'Space Mono', monospace;
  border-radius: 5px;
  border: 1px solid var(--border);
  background: var(--panel2);
  color: var(--muted);
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s, box-shadow 0.15s;
}
#layer-controls button:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 0 0 2px rgba(61,142,255,0.25);
}
#layer-controls button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
}
.layer-controls-note {
  padding: 8px 9px;
  border: 1px dashed rgba(88,99,121,0.55);
  border-radius: 7px;
  background: rgba(18,22,30,0.58);
  color: var(--muted);
  font-size: 10px;
  line-height: 1.35;
}
.filter-bar {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}
.filter-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}
.filter-field span {
  font-size: 9px;
  font-family: 'Space Mono', monospace;
  color: var(--muted);
  letter-spacing: 0.6px;
  text-transform: uppercase;
}
.filter-select {
  width: 100%;
  min-width: 0;
  padding: 7px 8px;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(18,22,30,0.98), rgba(12,15,20,1));
  color: var(--text);
  color-scheme: dark;
  accent-color: var(--accent);
  font-size: 11px;
  font-family: 'DM Sans', sans-serif;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
}
.filter-select:hover {
  border-color: rgba(61,142,255,0.45);
}
.filter-select:focus {
  border-color: rgba(61,142,255,0.75);
  box-shadow: 0 0 0 2px rgba(61,142,255,0.18);
}
.filter-select option {
  background: var(--panel);
  color: var(--text);
}
.filter-select optgroup {
  background: var(--panel);
  color: var(--muted);
}
.filter-reset-btn {
  align-self: end;
  min-height: 33px;
}
.layer-list::-webkit-scrollbar { width: 4px; }
.layer-list::-webkit-scrollbar-track { background: transparent; }
.layer-list::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.layer-group {
  margin-bottom: 4px;
}
.layer-group-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
  transition: background 0.12s;
  user-select: none;
  min-height: 32px;
}

.layer-group-header > span:first-of-type {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.layer-group-header > span[style*="font-size:10px"] {
  flex-shrink: 0;
  white-space: nowrap;
}

.layer-group-header > span[style*="margin-left:auto"] {
  flex-shrink: 0;
  white-space: nowrap;
}

.layer-group-header:hover { background: var(--panel2); }
.layer-dot { width: 8px; height: 8px; border-radius: 2px; flex-shrink: 0; }
.layer-arrow { margin-left: auto; color: var(--muted); font-size: 10px; transition: transform 0.15s; flex-shrink: 0; }
.layer-group.open .layer-arrow { transform: rotate(90deg); }
.layer-items { display: none; padding-left: 16px; }
.layer-group.open .layer-items { display: block; }
.layer-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 10px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 11px;
  color: var(--muted);
  transition: background 0.12s, color 0.12s;
  height: 26px;
  min-width: 0;
}
.layer-item:hover { background: var(--panel2); color: var(--text); }
.layer-item.selected {
  background: linear-gradient(90deg, rgba(61,142,255,0.24), rgba(61,142,255,0.08));
  color: #dbeafe;
  border: 1px solid rgba(61,142,255,0.65);
  box-shadow: inset 3px 0 0 var(--accent), 0 0 0 1px rgba(61,142,255,0.14);
}
.layer-item.selected .layer-item-label { font-weight: 600; }
.layer-item-label {
  flex: 1;
  min-width: 80px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.toggle-eye {
  cursor: pointer;
  color: var(--muted);
  font-size: 12px;
  padding: 2px 4px;
  border-radius: 3px;
  transition: color 0.1s;
  flex-shrink: 0;
}
.toggle-eye:hover { color: var(--text); }
.toggle-eye.hidden { opacity: 0.3; }

.layer-color-btn {
  width: 18px;
  height: 18px;
  min-width: 18px;
  min-height: 18px;
  border: 1.5px solid #222a;
  border-radius: 5px;
  cursor: pointer;
  position: relative;
  padding: 0;
  margin-right: 2px;
  flex-shrink: 0;
  transition: transform 0.12s;
}

.layer-color-btn:hover {
  transform: scale(1.1);
}

.focus-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  min-width: 18px;
  border-radius: 4px;
  border: 1px solid transparent;
  background: transparent;
  color: transparent;
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.12s, border-color 0.12s, color 0.12s;
  padding: 0;
}
.focus-btn .icon { width: 11px; height: 11px; }
.layer-item:hover .focus-btn { color: var(--muted); }
.focus-btn:hover {
  background: var(--accent) !important;
  border-color: var(--accent) !important;
  color: #fff !important;
}

/* Camera fly-to flash ring */
@keyframes focusRing {
  0%   { box-shadow: 0 0 0 0 rgba(61,142,255,0.7); }
  70%  { box-shadow: 0 0 0 12px rgba(61,142,255,0); }
  100% { box-shadow: 0 0 0 0 rgba(61,142,255,0); }
}
.focus-flash { animation: focusRing 0.5s ease-out; }

/* CANVAS AREA */
.canvas-wrap {
  flex: 1;
  position: relative;
  overflow: hidden;
}
.canvas-wrap.drag-over {
  box-shadow: inset 0 0 0 2px rgba(61,142,255,0.85);
}
#bim-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

#ifc-drop-overlay {
  position: absolute;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 35;
  pointer-events: none;
  background: rgba(13, 15, 20, 0.45);
  backdrop-filter: blur(2px);
}
#ifc-drop-overlay.active { display: flex; }
#ifc-drop-overlay > div {
  border: 1px dashed rgba(61,142,255,0.9);
  background: rgba(19,22,29,0.9);
  color: #dbeafe;
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  padding: 12px 18px;
  border-radius: 8px;
  box-shadow: 0 6px 18px rgba(0,0,0,0.35);
}

/* HUD overlays */
.hud-corner {
  position: absolute;
  bottom: 20px;
  left: 20px;
  display: flex;
  gap: 8px;
}
.hud-btn {
  width: 36px; height: 36px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  color: var(--muted);
  font-size: 16px;
  transition: all 0.15s;
}
.hud-btn:hover { color: var(--text); border-color: var(--accent); }

.compass {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--panel);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Space Mono', monospace;
  font-size: 9px;
  color: var(--muted);
}
.compass-inner {
  position: relative;
  width: 40px; height: 40px;
}
.compass-n {
  position: absolute;
  top: 0; left: 50%; transform: translateX(-50%);
  color: var(--accent); font-weight: 700; font-size: 10px;
}
.compass-arrow {
  position: absolute;
  top: 50%; left: 50%;
  width: 2px; height: 16px;
  background: linear-gradient(var(--accent) 50%, var(--muted) 50%);
  transform-origin: bottom center;
  transform: translateX(-50%) translateY(-100%);
  border-radius: 1px;
}

.nav-hint {
  position: absolute;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(13,15,20,0.85);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 16px;
  font-size: 11px;
  color: var(--muted);
  pointer-events: none;
  backdrop-filter: blur(8px);
  font-family: 'Space Mono', monospace;
  z-index: 10;
}
.nav-hint span { color: var(--accent2); }

/* PROJECT BANNER */
#proj-banner {
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(13, 15, 20, 0.92);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 18px;
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  color: var(--muted);
  display: flex;
  gap: 16px;
  align-items: center;
  backdrop-filter: blur(8px);
  pointer-events: none;
  white-space: nowrap;
  z-index: 20;
}

/* RIGHT PANEL — Properties */
.right-panel {
  width: clamp(300px, 26vw, 420px);
  min-width: 300px;
  background: var(--panel);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  overflow: hidden;
  transition: width 0.2s;
}
.right-panel.collapsed { width: 0; }

/* RESIZE HANDLES — panneaux redimensionnables */
.resize-handle {
  width: 4px;
  cursor: col-resize;
  background: transparent;
  flex-shrink: 0;
  transition: background 0.15s;
  position: relative;
  z-index: 10;
}
.resize-handle:hover,
.resize-handle.dragging { background: var(--accent); }

.prop-section {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}
.prop-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 10px;
}
.prop-label {
  font-size: 10px;
  font-family: 'Space Mono', monospace;
  color: var(--muted);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 0;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.prop-section.is-base .prop-label { color: #8ab6ff; }
.prop-section.is-type .prop-label { color: #a78bfa; }
.prop-section.is-pset .prop-label { color: #34d399; }
.prop-section.is-qto .prop-label { color: #f59e0b; }
.prop-section.is-classification .prop-label { color: #22d3ee; }
.prop-section.is-material .prop-label { color: #fbbf24; }
.prop-toggle {
  border: 1px solid var(--border);
  background: var(--panel2);
  color: var(--muted);
  border-radius: 6px;
  width: 22px;
  height: 22px;
  min-width: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 10px;
  line-height: 1;
  transition: color 0.12s, border-color 0.12s, transform 0.12s;
}
.prop-toggle:hover {
  color: var(--text);
  border-color: var(--accent);
}
.prop-section.collapsed .prop-toggle {
  transform: rotate(-90deg);
}
.prop-content-inner {
  min-width: 0;
}
.prop-section.collapsed .prop-content-inner {
  display: none;
}
.prop-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.prop-type {
  font-size: 11px;
  color: var(--accent2);
  font-family: 'Space Mono', monospace;
}
.prop-badges {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 8px;
}
.prop-badge {
  max-width: 100%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.prop-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}
.prop-table tr {
  border-bottom: 1px solid var(--border);
  display: grid;
  grid-template-columns: minmax(110px, 42%) minmax(140px, 1fr);
  column-gap: 10px;
}
.prop-table td {
  padding: 7px 0;
  font-size: 11px;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.prop-table td:first-child { color: var(--muted); }
.prop-table td:last-child {
  color: var(--text);
  font-weight: 500;
  text-align: left;
}
.prop-cell {
  display: block;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.prop-meta {
  color: var(--muted);
  font-size: 10px;
  font-family: 'Space Mono', monospace;
}

.no-selection {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
  padding: 20px;
}
.no-selection .icon { opacity: 0.3; width: 40px; height: 40px; }

/* STATUS BAR */
footer {
  height: 28px;
  background: var(--panel);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 20px;
  font-size: 10px;
  font-family: 'Space Mono', monospace;
  color: var(--muted);
  flex-shrink: 0;
}
footer .status-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent2);
  box-shadow: 0 0 6px var(--accent2);
}
footer .stat { color: var(--text); }

/* SELECTED HIGHLIGHT */
.highlight-label {
  position: absolute;
  left: 0;
  top: 0;
  pointer-events: none;
  background: rgba(13,15,20,0.92);
  color: #f8fbff;
  font-size: 10px;
  letter-spacing: 0.2px;
  font-family: 'Space Mono', monospace;
  border: 1px solid rgba(61,142,255,0.8);
  box-shadow: 0 6px 16px rgba(0,0,0,0.35), 0 0 0 1px rgba(61,142,255,0.2) inset;
  padding: 5px 10px;
  border-radius: 6px;
  display: none;
  transform: translate3d(-9999px, -9999px, 0) translate(-50%, -50%);
  will-change: transform;
  white-space: nowrap;
  max-width: min(44vw, 420px);
  overflow: hidden;
  text-overflow: ellipsis;
  z-index: 50;
}
.highlight-label.visible { display: block; }

/* Loading overlay */
#loading {
  position: absolute;
  inset: 0;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 16px;
  z-index: 200;
}
.spin {
  width: 36px; height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
#loading p { font-size: 12px; font-family: 'Space Mono', monospace; color: var(--muted); }

/* ═════════════════════════════════════════════════════════════════════════════
   RECHERCHE AVANCÉE
   ═════════════════════════════════════════════════════════════════════════════ */
.search-bar {
  position: relative;
  padding: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.search-icon {
  position: absolute;
  left: 20px;
  top: 20px;
  width: 16px;
  height: 16px;
  color: var(--muted);
  pointer-events: none;
  z-index: 1;
}

.search-input {
  width: 100%;
  padding: 8px 12px 8px 36px;
  background: var(--panel2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 12px;
  font-family: 'DM Sans', sans-serif;
  transition: all 0.2s;
  outline: none;
}

.search-input:focus {
  border-color: var(--accent);
  background: var(--panel);
  box-shadow: 0 0 0 3px var(--glow);
}

.search-input::placeholder {
  color: var(--muted);
  opacity: 0.6;
}

.search-results {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  padding: 6px 10px;
  background: var(--glow);
  border: 1px solid var(--accent);
  border-radius: 6px;
  font-size: 11px;
  color: var(--text);
  font-family: 'Space Mono', monospace;
}

.search-results button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s;
}

.search-results button:hover {
  background: var(--accent);
  border-color: var(--accent);
}

.search-results button svg {
  width: 14px;
  height: 14px;
  color: var(--text);
}

/* ═════════════════════════════════════════════════════════════════════════════
   ISOLATION D'OBJETS
   ═════════════════════════════════════════════════════════════════════════════ */
.isolation-exit-btn {
  position: absolute;
  top: 70px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: linear-gradient(135deg, #ff6b35 0%, #f54021 100%);
  border: 1px solid rgba(255, 107, 53, 0.5);
  border-radius: 10px;
  color: white;
  font-size: 12px;
  font-weight: 600;
  font-family: 'DM Sans', sans-serif;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(255, 107, 53, 0.4);
  z-index: 100;
  animation: slideDown 0.3s ease;
  transition: all 0.2s;
}

.isolation-exit-btn:hover {
  transform: translateX(-50%) scale(1.05);
  box-shadow: 0 6px 20px rgba(255, 107, 53, 0.6);
}

.isolation-exit-btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

/* ═════════════════════════════════════════════════════════════════════════════
   MENU CONTEXTUEL
   ═════════════════════════════════════════════════════════════════════════════ */
.context-menu {
  position: fixed;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 4px;
  min-width: 220px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  z-index: 10000;
  animation: contextMenuFadeIn 0.15s ease;
  backdrop-filter: blur(8px);
}

@keyframes contextMenuFadeIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.context-menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 6px;
  font-size: 12px;
  color: var(--text);
  cursor: pointer;
  transition: all 0.12s;
  user-select: none;
}

.context-menu-item:hover {
  background: var(--glow);
  color: var(--accent);
}

.context-menu-item .icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  opacity: 0.7;
}

.context-menu-separator {
  height: 1px;
  background: var(--border);
  margin: 4px 0;
}

/* ═════════════════════════════════════════════════════════════════════════════
   HIÉRARCHIE SPATIALE
   ═════════════════════════════════════════════════════════════════════════════ */
.hierarchy-node {
  margin-bottom: 4px;
}

.hierarchy-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.15s;
}

.hierarchy-header:hover {
  background: var(--glow);
}

.hierarchy-node .hierarchy-node .hierarchy-header {
  font-size: 10px;
}

.hierarchy-node .hierarchy-node .hierarchy-node .hierarchy-header {
  font-size: 9px;
}