/* ============================================================
   Conjunction BIM 2.0 — Design system
   Dark professional theme inspired by Autodesk/Revit
   ============================================================ */
:root {
  --bg-app: #1a1a1a;
  --bg-panel: #232323;
  --bg-panel-hover: #2a2a2a;
  --bg-panel-active: #2f3a4a;
  --bg-viewport: #141414;
  --bg-modal: #2a2a2a;
  --border: #3a3a3a;
  --border-accent: #4a7dbd;

  --text-primary: #e8e8e8;
  --text-secondary: #999;
  --text-muted: #666;
  --text-accent: #5b9bd5;
  --text-success: #4caf50;
  --text-warn: #ff9800;
  --text-error: #f44336;

  --accent: #4a7dbd;
  --accent-hover: #5b9bd5;
  --accent-active: #3a6dad;

  --topbar-h: 44px;
  --panel-w: 220px;
  --props-w: 300px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'SF Mono', 'Cascadia Code', 'Fira Code', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { width: 100%; height: 100%; overflow: hidden; background: var(--bg-app); color: var(--text-primary); font-family: var(--font); font-size: 13px; }

/* ---- Topbar ---- */
.topbar {
  height: var(--topbar-h);
  background: #111;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 8px; padding: 0 12px;
  flex-shrink: 0; position: relative; z-index: 100;
}
.topbar-logo { display: flex; align-items: center; gap: 8px; color: var(--text-accent); font-weight: 600; font-size: 14px; min-width: 140px; }
.topbar-logo svg { opacity: .85; }
.topbar-center { display: flex; gap: 4px; position: absolute; left: 50%; transform: translateX(-50%); }
.topbar-right { display: flex; align-items: center; gap: 6px; margin-left: auto; }

.tb-btn {
  background: transparent; border: 1px solid var(--border); color: var(--text-secondary);
  padding: 4px 10px; border-radius: 4px; cursor: pointer; font-size: 12px; font-family: var(--font);
  transition: all .15s;
}
.tb-btn:hover { background: var(--bg-panel-hover); border-color: var(--accent); color: var(--text-primary); }
.tb-btn.active { background: var(--bg-panel-active); border-color: var(--border-accent); color: var(--text-accent); }

.dag-status {
  width: 8px; height: 8px; border-radius: 50%; background: var(--text-muted);
  transition: background .3s; cursor: default;
}
.dag-status.recalculating { background: var(--text-warn); animation: pulse 0.6s ease-in-out infinite; }
.dag-status.done { background: var(--text-success); }
@keyframes pulse { 0%,100% { opacity:1 } 50% { opacity:.4 } }

/* ---- Main layout ---- */
.main-layout {
  display: flex;
  height: calc(100vh - var(--topbar-h));
  overflow: hidden;
}

/* ---- Level panel ---- */
.level-panel {
  width: var(--panel-w); flex-shrink: 0;
  background: var(--bg-panel); border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  overflow-y: auto;
}

.panel-header {
  padding: 8px 12px; font-size: 10px; font-weight: 600; letter-spacing: .1em;
  color: var(--text-muted); text-transform: uppercase; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  flex-shrink: 0;
}
.close-btn {
  background: transparent; border: none; cursor: pointer; color: var(--text-muted);
  font-size: 14px; line-height: 1; padding: 2px 4px;
  border-radius: 3px; transition: color .15s;
}
.close-btn:hover { color: var(--text-error); }

.level-item {
  padding: 8px 12px; cursor: pointer; border-bottom: 1px solid var(--border);
  transition: background .1s; display: flex; justify-content: space-between; align-items: center;
}
.level-item:hover { background: var(--bg-panel-hover); }
.level-item.active { background: var(--bg-panel-active); }
.level-name { color: var(--text-primary); font-size: 12px; }
.level-elev { color: var(--text-muted); font-family: var(--font-mono); font-size: 11px; }

/* ---- Viewport area ---- */
.viewport-area {
  flex: 1; display: flex; flex-direction: column; background: var(--bg-viewport); overflow: hidden;
  position: relative;
}
.view-3d { flex: 1; position: relative; border-bottom: 1px solid var(--border); }
.view-split { display: flex; height: 200px; flex-shrink: 0; }
.view-plan { flex: 1; position: relative; border-right: 1px solid var(--border); }
.view-section { flex: 1; position: relative; }

.view-label {
  position: absolute; top: 6px; left: 10px; z-index: 5;
  font-size: 10px; font-weight: 600; text-transform: uppercase; letter-spacing: .08em;
  color: var(--text-muted); pointer-events: none;
}
canvas { display: block; width: 100% !important; height: 100% !important; }

/* ---- Properties panel ---- */
.properties-panel {
  width: var(--props-w); flex-shrink: 0;
  background: var(--bg-panel); border-left: 1px solid var(--border);
  display: flex; flex-direction: column; overflow: hidden;
}
.properties-panel.hidden { width: 0; overflow: hidden; }

#properties-content {
  flex: 1; overflow-y: auto; padding-bottom: 12px;
}
.props-empty {
  padding: 24px 16px; text-align: center; color: var(--text-muted);
  display: flex; flex-direction: column; gap: 8px;
}
.props-empty .hint { font-size: 11px; }

/* ---- Props sections ---- */
.props-section { border-bottom: 1px solid var(--border); }
.props-section-header {
  padding: 7px 12px; font-size: 10px; font-weight: 600; letter-spacing: .1em;
  text-transform: uppercase; color: var(--text-muted);
  cursor: pointer; user-select: none;
  display: flex; align-items: center; gap: 6px;
  background: rgba(255,255,255,.02);
}
.props-section-header:hover { background: var(--bg-panel-hover); }
.props-section-header .chevron { font-size: 8px; transition: transform .2s; margin-left: auto; }
.props-section-header.collapsed .chevron { transform: rotate(-90deg); }
.props-section-body { padding: 4px 0; }
.props-section-body.hidden { display: none; }

.prop-row {
  display: flex; align-items: center; padding: 4px 12px; gap: 8px;
  min-height: 28px;
}
.prop-row:hover { background: rgba(255,255,255,.02); }
.prop-label { flex: 0 0 100px; color: var(--text-secondary); font-size: 11px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.prop-value { flex: 1; }

.prop-input {
  width: 100%; background: rgba(255,255,255,.06); border: 1px solid var(--border);
  color: var(--text-primary); padding: 3px 7px; border-radius: 3px; font-size: 12px;
  font-family: var(--font-mono); outline: none; transition: border-color .15s;
}
.prop-input:focus { border-color: var(--accent); background: rgba(74,125,189,.08); }
.prop-input.error { border-color: var(--text-error); }
.prop-input.readonly { color: var(--text-muted); cursor: default; background: transparent; border-color: transparent; }

.prop-readonly { color: var(--text-muted); font-family: var(--font-mono); font-size: 12px; }
.prop-select {
  width: 100%; background: rgba(255,255,255,.06); border: 1px solid var(--border);
  color: var(--text-primary); padding: 3px 7px; border-radius: 3px; font-size: 12px;
  outline: none; cursor: pointer; transition: border-color .15s;
}
.prop-select:focus { border-color: var(--accent); }
.prop-checkbox { width: 14px; height: 14px; cursor: pointer; accent-color: var(--accent); }

/* Layers list */
.layers-list { padding: 4px 12px; }
.layer-row {
  display: flex; align-items: center; gap: 6px; padding: 3px 0;
  border-bottom: 1px solid rgba(255,255,255,.04);
  font-size: 11px; color: var(--text-secondary);
}
.layer-fn-badge {
  font-size: 9px; padding: 1px 5px; border-radius: 10px; font-weight: 600;
  text-transform: uppercase; letter-spacing: .05em;
}
.layer-fn-badge.structure { background: rgba(74,125,189,.2); color: #7baed4; }
.layer-fn-badge.insulation { background: rgba(255,152,0,.15); color: #ffb74d; }
.layer-fn-badge.finish { background: rgba(76,175,80,.15); color: #81c784; }
.layer-fn-badge.air { background: rgba(255,255,255,.08); color: var(--text-muted); }
.layer-add-btn {
  display: flex; align-items: center; gap: 4px; margin: 6px 12px 0; padding: 4px 8px;
  background: transparent; border: 1px dashed var(--border); border-radius: 4px;
  color: var(--text-muted); font-size: 11px; cursor: pointer; transition: all .15s;
  width: calc(100% - 24px);
}
.layer-add-btn:hover { border-color: var(--accent); color: var(--text-accent); }

/* Props footer (delete, undo) */
.props-footer {
  padding: 10px 12px; border-top: 1px solid var(--border);
  display: flex; gap: 8px; flex-shrink: 0;
}
.btn-delete {
  flex: 1; background: transparent; border: 1px solid rgba(244,67,54,.3);
  color: var(--text-error); padding: 6px; border-radius: 4px; font-size: 12px;
  cursor: pointer; transition: all .15s;
}
.btn-delete:hover { background: rgba(244,67,54,.1); border-color: var(--text-error); }
.btn-undo {
  flex: 1; background: transparent; border: 1px solid var(--border);
  color: var(--text-secondary); padding: 6px; border-radius: 4px; font-size: 12px;
  cursor: pointer; transition: all .15s;
}
.btn-undo:hover { border-color: var(--accent); color: var(--text-accent); }

/* Selected element highlight */
.element-selected { outline: 2px solid var(--accent) !important; }

/* ---- Modals ---- */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.65);
  display: flex; align-items: center; justify-content: center; z-index: 1000;
}
.modal-overlay.hidden { display: none; }
.modal {
  background: var(--bg-modal); border: 1px solid var(--border);
  border-radius: 8px; min-width: 340px; overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
}
.modal-header { padding: 14px 16px; font-weight: 600; border-bottom: 1px solid var(--border); color: var(--text-accent); }
.modal-body { padding: 16px; display: flex; flex-direction: column; gap: 12px; }
.modal-body label { display: flex; flex-direction: column; gap: 4px; color: var(--text-secondary); font-size: 12px; }
.modal-footer { padding: 12px 16px; display: flex; gap: 8px; justify-content: flex-end; border-top: 1px solid var(--border); }
.btn-primary { background: var(--accent); border: none; color: #fff; padding: 7px 16px; border-radius: 4px; cursor: pointer; font-size: 12px; transition: background .15s; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { background: transparent; border: 1px solid var(--border); color: var(--text-secondary); padding: 7px 16px; border-radius: 4px; cursor: pointer; font-size: 12px; }
.btn-secondary:hover { border-color: var(--accent); color: var(--text-primary); }
.input-field {
  background: rgba(255,255,255,.06); border: 1px solid var(--border);
  color: var(--text-primary); padding: 6px 10px; border-radius: 4px; font-size: 12px;
  outline: none; transition: border-color .15s;
}
.input-field:focus { border-color: var(--accent); }

/* ---- Toast ---- */
#toast-container { position: fixed; bottom: 16px; right: 16px; display: flex; flex-direction: column; gap: 8px; z-index: 2000; }
.toast {
  background: #2a2a2a; border: 1px solid var(--border);
  padding: 10px 16px; border-radius: 6px; font-size: 12px;
  box-shadow: 0 4px 20px rgba(0,0,0,.4); max-width: 280px;
  animation: slideIn .2s ease; color: var(--text-primary);
}
.toast.success { border-color: var(--text-success); }
.toast.error { border-color: var(--text-error); }
@keyframes slideIn { from { transform: translateX(20px); opacity:0 } to { transform: translateX(0); opacity:1 } }

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #555; }

/* ---- Element count badge ---- */
.el-count { font-size: 10px; color: var(--text-muted); background: rgba(255,255,255,.06); padding: 2px 6px; border-radius: 10px; }

/* ---- Recalculating shimmer on read-only values ---- */
@keyframes shimmer { 0%,100% { opacity:1 } 50% { opacity:.5 } }
.recalculating { animation: shimmer .8s ease-in-out infinite; }

/* ---- WebSocket presence bar ---- */
.presence-bar {
  display: flex; align-items: center; gap: 4px; padding: 0 4px;
}
.presence-dot {
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--text-muted); border: 2px solid rgba(255,255,255,.15);
  display: flex; align-items: center; justify-content: center;
  font-size: 9px; font-weight: 700; color: #fff;
  flex-shrink: 0; cursor: default; transition: background .3s;
}
.presence-dot.remote {
  opacity: 0.85;
}

/* WebSocket status indicator */
.ws-status {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--text-muted); transition: background .3s; cursor: default;
}
.ws-status.connected { background: #2ecc71; }
.ws-status.connecting { background: var(--text-warn); animation: pulse 0.8s ease-in-out infinite; }
.ws-status.disconnected { background: var(--text-error); }

/* ---- Remote selection highlight (colored outline on selected mesh) ---- */
/* Applied via canvas overlay — actual Three.js coloring handled in JS */

/* ---- Ghost cursor overlay ---- */
.cursor-overlay {
  position: absolute; inset: 0; pointer-events: none; z-index: 10; overflow: hidden;
}
.ghost-cursor {
  position: absolute; pointer-events: none;
  display: flex; flex-direction: column; align-items: flex-start; gap: 2px;
  transform: translate(-4px, -4px);
}
.ghost-cursor-dot {
  width: 10px; height: 10px; border-radius: 50%;
  border: 2px solid rgba(255,255,255,.4);
  flex-shrink: 0;
}
.ghost-cursor-label {
  font-size: 10px; font-weight: 600; padding: 1px 5px;
  border-radius: 3px; color: #fff; white-space: nowrap;
  opacity: .9; line-height: 1.4;
}

/* ---- Panel tabs (Props / Issues) ---- */
.panel-tab {
  background: transparent; border: 1px solid var(--border); color: var(--text-muted);
  padding: 2px 8px; border-radius: 4px; font-size: 11px; cursor: pointer; transition: all .15s;
}
.panel-tab.active { background: var(--bg-panel-active); border-color: var(--border-accent); color: var(--text-accent); }
.panel-tab:hover:not(.active) { border-color: var(--accent); color: var(--text-primary); }

/* ---- Issues panel ---- */
#issues-content { flex: 1; overflow-y: auto; display: flex; flex-direction: column; }
.issues-toolbar {
  display: flex; gap: 6px; padding: 8px 10px; flex-shrink: 0;
  border-bottom: 1px solid var(--border);
}
.issue-filter-select {
  flex: 1; background: rgba(255,255,255,.06); border: 1px solid var(--border);
  color: var(--text-primary); padding: 3px 6px; border-radius: 4px; font-size: 11px; outline: none;
}
.issue-filter-select:focus { border-color: var(--accent); }
#issues-list { flex: 1; overflow-y: auto; }

.issue-item {
  padding: 10px 12px; border-bottom: 1px solid var(--border);
  cursor: pointer; transition: background .1s;
  display: flex; flex-direction: column; gap: 4px;
}
.issue-item:hover { background: var(--bg-panel-hover); }
.issue-item.active { background: var(--bg-panel-active); }
.issue-item-header { display: flex; align-items: center; gap: 6px; }
.issue-pin-num {
  width: 20px; height: 20px; border-radius: 50%; font-size: 10px; font-weight: 700;
  display: flex; align-items: center; justify-content: center; color: #fff; flex-shrink: 0;
}
.issue-title { font-size: 12px; color: var(--text-primary); flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.issue-priority-badge {
  font-size: 9px; padding: 1px 5px; border-radius: 10px; font-weight: 600;
  text-transform: uppercase; letter-spacing: .05em; flex-shrink: 0;
}
.issue-priority-badge.critical { background: rgba(244,67,54,.25); color: #ef9a9a; }
.issue-priority-badge.high { background: rgba(255,152,0,.2); color: #ffb74d; }
.issue-priority-badge.normal { background: rgba(74,125,189,.2); color: #7baed4; }
.issue-priority-badge.low { background: rgba(255,255,255,.08); color: var(--text-muted); }
.issue-meta { font-size: 10px; color: var(--text-muted); display: flex; gap: 8px; }

/* ---- Issue pins overlay ---- */
.issue-pins-overlay {
  position: absolute; inset: 0; pointer-events: none; z-index: 15; overflow: hidden;
}
.issue-pin {
  position: absolute; pointer-events: auto; cursor: pointer;
  transform: translate(-14px, -28px);
  display: flex; flex-direction: column; align-items: center; gap: 0;
  transition: transform .1s;
}
.issue-pin:hover { transform: translate(-14px, -32px) scale(1.1); }
.issue-pin-circle {
  width: 28px; height: 28px; border-radius: 50% 50% 50% 0;
  transform: rotate(-45deg);
  border: 2px solid rgba(255,255,255,.3);
  display: flex; align-items: center; justify-content: center;
}
.issue-pin-num-inner {
  transform: rotate(45deg); font-size: 10px; font-weight: 700; color: #fff;
}
/* Status colors */
.issue-pin.open .issue-pin-circle { background: #e85d4a; }
.issue-pin.resolved .issue-pin-circle { background: #2ecc71; }
.issue-pin.wont_fix .issue-pin-circle { background: #666; }

/* ---- Context menu ---- */
.context-menu {
  position: fixed; background: var(--bg-modal); border: 1px solid var(--border);
  border-radius: 6px; min-width: 180px; box-shadow: 0 8px 24px rgba(0,0,0,.5);
  z-index: 500; overflow: hidden;
}
.context-menu.hidden { display: none; }
.context-menu-item {
  padding: 8px 14px; font-size: 12px; color: var(--text-primary); cursor: pointer;
  transition: background .1s;
}
.context-menu-item:hover { background: var(--bg-panel-hover); color: var(--text-accent); }

/* ---- Issue modal extras ---- */
.modal-wide { min-width: 420px; }
.input-textarea { min-height: 70px; resize: vertical; font-family: var(--font); }
.issue-snapshot-preview {
  display: flex; flex-direction: column; gap: 6px;
  background: rgba(255,255,255,.04); border: 1px solid var(--border);
  border-radius: 4px; padding: 8px;
}
.issue-snapshot-preview.hidden { display: none; }
.snapshot-label { font-size: 11px; color: var(--text-muted); }
.issue-snapshot-preview img { width: 100%; border-radius: 3px; max-height: 120px; object-fit: cover; }

/* ---- Issue detail modal ---- */
.issue-detail-snapshot img { width: 100%; border-radius: 4px; max-height: 200px; object-fit: cover; margin-bottom: 8px; }
.issue-detail-body-text { font-size: 12px; color: var(--text-secondary); white-space: pre-wrap; word-break: break-word; }
.issue-comments-section { margin-top: 12px; border-top: 1px solid var(--border); padding-top: 10px; }
.issue-comment {
  padding: 6px 0; border-bottom: 1px solid rgba(255,255,255,.04);
  font-size: 12px;
}
.issue-comment-author { font-weight: 600; color: var(--text-accent); font-size: 11px; }
.issue-comment-time { font-size: 10px; color: var(--text-muted); margin-left: 6px; }
.issue-comment-text { color: var(--text-secondary); margin-top: 3px; white-space: pre-wrap; }
.issue-comment-form {
  display: flex; gap: 6px; margin-top: 8px;
}
.issue-comment-form textarea {
  flex: 1; min-height: 40px; resize: vertical;
  background: rgba(255,255,255,.06); border: 1px solid var(--border);
  color: var(--text-primary); padding: 5px 8px; border-radius: 4px; font-size: 12px;
  font-family: var(--font); outline: none;
}
.issue-comment-form textarea:focus { border-color: var(--accent); }
.issue-comment-form button {
  align-self: flex-end; background: var(--accent); border: none; color: #fff;
  padding: 7px 12px; border-radius: 4px; font-size: 12px; cursor: pointer;
}
.issue-comment-form button:hover { background: var(--accent-hover); }

/* ---- Issues empty state ---- */
.issues-empty {
  padding: 24px 16px; text-align: center; color: var(--text-muted); font-size: 12px;
}

/* ---- Schedule panel (A-400 Door/Window Schedule) ---- */
#schedule-content { flex: 1; overflow-y: auto; display: flex; flex-direction: column; }
.schedule-toolbar {
  display: flex; gap: 6px; padding: 8px 10px; flex-shrink: 0;
  border-bottom: 1px solid var(--border);
}
#schedule-list { flex: 1; overflow-y: auto; }

.schedule-section { padding: 10px 12px; border-bottom: 1px solid var(--border); }
.schedule-section-header {
  font-size: 10px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: var(--text-accent); margin-bottom: 8px; padding-bottom: 4px;
  border-bottom: 1px solid var(--border); display: flex; justify-content: space-between;
}
.schedule-table { width: 100%; border-collapse: collapse; font-size: 11px; }
.schedule-table th {
  text-align: left; color: var(--text-muted); font-weight: 600; font-size: 9px;
  text-transform: uppercase; letter-spacing: .08em; padding: 4px 6px;
  border-bottom: 1px solid var(--border); position: sticky; top: 0;
  background: var(--bg-panel);
}
.schedule-table td { padding: 4px 6px; color: var(--text-secondary); }
.schedule-table td.mark { color: var(--text-accent); font-family: var(--font-mono); font-weight: 600; }
.schedule-table td.number { font-family: var(--font-mono); font-size: 10px; color: var(--text-muted); }
.schedule-table tr:hover td { background: var(--bg-panel-hover); color: var(--text-primary); }
.schedule-empty { padding: 24px 16px; text-align: center; color: var(--text-muted); font-size: 12px; }

/* ---- Wall placement mode (crosshair cursor) ---- */
body.placing-door, body.placing-window { cursor: crosshair; }

/* ---- Door/Window family pins in 3D viewport ---- */
.fam-pin {
  position: absolute; pointer-events: auto; cursor: pointer;
  transform: translate(-10px, -20px);
  display: flex; flex-direction: column; align-items: center; gap: 0;
  font-size: 10px; font-weight: 700; color: #fff;
}
.fam-pin:hover { transform: translate(-10px, -24px) scale(1.1); }
.fam-pin-circle {
  width: 20px; height: 20px; border-radius: 3px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid rgba(255,255,255,.3);
}
.fam-pin.door .fam-pin-circle { background: #6b4c3d; }
.fam-pin.window .fam-pin-circle { background: #3d6b6b; }
.fam-pin-label { font-size: 9px; margin-top: 1px; text-shadow: 0 1px 3px rgba(0,0,0,.8); }

/* ---- Placement target indicator ---- */
.placement-target {
  position: absolute; pointer-events: none;
  border: 2px dashed var(--text-accent); border-radius: 4px;
  background: rgba(91,155,213,.15);
  transform: translate(-50%, -50%);
}

/* ---- Render toolbar button + dropdown ---- */
#btn-render {
  position: relative;
}
#btn-render .render-icon {
  display: flex; align-items: center; gap: 5px;
}
.render-dropdown {
  position: absolute; top: calc(100% + 6px); right: 0;
  background: var(--bg-modal); border: 1px solid var(--border);
  border-radius: 6px; min-width: 220px; box-shadow: 0 12px 40px rgba(0,0,0,.6);
  z-index: 300; overflow: hidden; display: none;
}
.render-dropdown.open { display: block; }
.render-dropdown-section {
  padding: 8px 0; border-bottom: 1px solid var(--border);
}
.render-dropdown-section:last-child { border-bottom: none; }
.render-dropdown-label {
  padding: 4px 12px; font-size: 10px; font-weight: 600; letter-spacing: .1em;
  text-transform: uppercase; color: var(--text-muted);
}
.render-style-btn {
  display: flex; align-items: center; gap: 8px; width: 100%;
  padding: 7px 12px; background: transparent; border: none;
  color: var(--text-secondary); font-size: 12px; cursor: pointer;
  transition: background .1s; text-align: left;
}
.render-style-btn:hover { background: var(--bg-panel-hover); color: var(--text-primary); }
.render-style-btn.selected { color: var(--text-accent); background: rgba(74,125,189,.1); }
.render-style-dot {
  width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0;
}
.render-dropdown-divider { height: 1px; background: var(--border); margin: 4px 0; }
.render-dropdown-action {
  display: flex; align-items: center; gap: 8px; width: 100%;
  padding: 7px 12px; background: transparent; border: none;
  color: var(--text-secondary); font-size: 12px; cursor: pointer;
  transition: background .1s; text-align: left;
}
.render-dropdown-action:hover { background: var(--bg-panel-hover); color: var(--text-primary); }

/* ---- Render loading spinner ---- */
.render-loading-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.7);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  z-index: 2000; gap: 16px;
}
.render-loading-overlay.hidden { display: none; }
.render-spinner {
  width: 48px; height: 48px; border: 3px solid var(--border);
  border-top-color: var(--accent); border-radius: 50%;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.render-loading-text { color: var(--text-secondary); font-size: 13px; }
.render-loading-style { color: var(--text-accent); font-weight: 600; font-size: 14px; }

/* ---- Render History Panel (slide-out right drawer) ---- */
#render-history-panel {
  position: fixed; top: 0; right: 0; bottom: 0;
  width: 320px; background: var(--bg-panel); border-left: 1px solid var(--border);
  z-index: 500; transform: translateX(100%); transition: transform .25s ease;
  display: flex; flex-direction: column;
}
#render-history-panel.open { transform: translateX(0); }
.render-history-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 14px; border-bottom: 1px solid var(--border); flex-shrink: 0;
}
.render-history-title { font-size: 12px; font-weight: 600; letter-spacing: .08em; color: var(--text-accent); }
#render-history-close { background: transparent; border: none; cursor: pointer; color: var(--text-muted); font-size: 18px; padding: 2px 4px; border-radius: 4px; }
#render-history-close:hover { color: var(--text-error); }
#render-history-list { flex: 1; overflow-y: auto; padding: 8px; display: flex; flex-direction: column; gap: 6px; }
.render-history-item {
  border: 1px solid var(--border); border-radius: 6px; overflow: hidden;
  cursor: pointer; transition: border-color .15s;
}
.render-history-item:hover { border-color: var(--accent); }
.render-history-item img { width: 100%; height: 160px; object-fit: cover; display: block; }
.render-history-meta { padding: 7px 10px; display: flex; flex-direction: column; gap: 3px; }
.render-history-name { font-size: 12px; font-weight: 600; color: var(--text-primary); }
.render-history-sub { font-size: 10px; color: var(--text-muted); }
.render-history-style-badge {
  display: inline-block; font-size: 9px; padding: 1px 6px; border-radius: 10px;
  font-weight: 600; text-transform: uppercase; letter-spacing: .05em;
  margin-top: 2px;
}
.render-history-style-badge.photorealistic { background: rgba(76,175,80,.2); color: #81c784; }
.render-history-style-badge.watercolor { background: rgba(156,39,176,.2); color: #ce93d8; }
.render-history-style-badge.sketch { background: rgba(255,152,0,.2); color: #ffb74d; }
.render-history-style-badge.analytical { background: rgba(74,125,189,.2); color: #7baed4; }
.render-history-empty { padding: 32px 16px; text-align: center; color: var(--text-muted); font-size: 12px; }

/* ---- Render Modal (full-screen image viewer) ---- */
#render-modal {
  position: fixed; inset: 0; background: rgba(0,0,0,.92);
  z-index: 1500; display: flex; flex-direction: column;
}
#render-modal.hidden { display: none; }
#render-modal-toolbar {
  display: flex; align-items: center; gap: 12px; padding: 10px 16px;
  background: rgba(0,0,0,.5); border-bottom: 1px solid rgba(255,255,255,.1);
  flex-shrink: 0;
}
#render-modal-toolbar .modal-title { flex: 1; color: var(--text-secondary); font-size: 12px; }
#render-modal-toolbar .modal-title strong { color: var(--text-primary); }
.render-modal-btn {
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.2);
  color: var(--text-primary); padding: 6px 12px; border-radius: 4px;
  font-size: 12px; cursor: pointer; transition: background .15s;
}
.render-modal-btn:hover { background: rgba(255,255,255,.2); }
.render-modal-close {
  background: transparent; border: none; color: var(--text-secondary);
  cursor: pointer; font-size: 20px; padding: 4px 8px; border-radius: 4px;
}
.render-modal-close:hover { color: var(--text-primary); }
#render-modal-body { flex: 1; display: flex; align-items: center; justify-content: center; overflow: hidden; padding: 16px; }
#render-modal-img { max-width: 100%; max-height: 100%; object-fit: contain; border-radius: 4px; box-shadow: 0 8px 40px rgba(0,0,0,.6); }
#render-modal-fullscreen { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); max-width: calc(100vw - 32px); max-height: calc(100vh - 120px); }

/* ---- Export for Twinmotion modal ---- */
.export-format-btn {
  display: flex; align-items: center; gap: 10px; width: 100%;
  padding: 10px 12px; border: 1px solid var(--border); border-radius: 6px;
  background: transparent; color: var(--text-secondary); font-size: 12px;
  cursor: pointer; transition: all .15s; text-align: left; margin-bottom: 6px;
}
.export-format-btn:hover { border-color: var(--accent); color: var(--text-primary); }
.export-format-btn.selected { border-color: var(--accent); background: rgba(74,125,189,.08); color: var(--text-accent); }
.export-format-btn .format-name { font-weight: 600; color: var(--text-primary); }
.export-format-btn.selected .format-name { color: var(--text-accent); }
.export-format-desc { font-size: 11px; color: var(--text-muted); display: block; margin-top: 2px; }
.export-option-row {
  display: flex; align-items: center; gap: 8px; padding: 6px 0;
  border-bottom: 1px solid rgba(255,255,255,.04);
  font-size: 12px; color: var(--text-secondary);
}
.export-option-row:last-child { border-bottom: none; }
.export-checkbox-label { display: flex; align-items: center; gap: 8px; cursor: pointer; width: 100%; }
.export-checkbox-label input[type="checkbox"] { accent-color: var(--accent); width: 14px; height: 14px; cursor: pointer; }
.export-info-badge { font-size: 10px; background: rgba(255,152,0,.15); color: #ffb74d; padding: 1px 6px; border-radius: 10px; }

/* ============================================================
   PHASE 8 — Collaboration, DOB Filing, Materials Schedule
   ============================================================ */

/* ---- Collaboration Session Indicator ---- */
.collab-session {
  display: flex; align-items: center; gap: 6px;
  background: rgba(74,125,189,.15); border: 1px solid rgba(74,125,189,.4);
  border-radius: 20px; padding: 3px 8px 3px 4px;
  font-size: 11px; cursor: default;
}
.collab-session.hidden { display: none; }
.collab-room-code {
  font-family: var(--font-mono); font-weight: 700; font-size: 12px;
  color: var(--text-accent); letter-spacing: 2px;
  background: rgba(74,125,189,.2); padding: 1px 6px; border-radius: 10px;
}
.collab-peers { display: flex; gap: 2px; }
.collab-peer-avatar {
  width: 18px; height: 18px; border-radius: 50%; font-size: 8px; font-weight: 700;
  color: #fff; display: flex; align-items: center; justify-content: center;
  border: 1.5px solid rgba(255,255,255,.2);
}
.collab-leave-btn {
  background: transparent; border: none; cursor: pointer; color: var(--text-muted);
  font-size: 12px; padding: 0 2px; transition: color .15s;
}
.collab-leave-btn:hover { color: var(--text-error); }

/* ---- Collaboration Modal ---- */
.collab-tabs {
  display: flex; gap: 0; border-bottom: 1px solid var(--border); margin-bottom: 4px;
}
.collab-tab {
  flex: 1; padding: 7px 12px; background: transparent; border: none;
  color: var(--text-muted); font-size: 12px; cursor: pointer;
  border-bottom: 2px solid transparent; transition: all .15s;
}
.collab-tab.active { color: var(--text-accent); border-bottom-color: var(--accent); }
.collab-tab:hover:not(.active) { color: var(--text-primary); }
.collab-tab-content { display: block; }
.collab-tab-content.hidden { display: none; }
.room-code-display {
  font-family: var(--font-mono); font-size: 28px; font-weight: 700;
  letter-spacing: 6px; color: var(--text-accent);
  background: rgba(74,125,189,.1); border: 1px solid rgba(74,125,189,.3);
  border-radius: 8px; padding: 12px 20px; display: inline-block;
  text-transform: uppercase;
}

/* ---- Context menu divider ---- */
.context-menu-divider { height: 1px; background: var(--border); margin: 3px 0; }

/* ---- DOB Filing Checklist Panel ---- */
#dob-panel {
  position: fixed; top: 0; right: 0; bottom: 0;
  width: 340px; background: var(--bg-panel); border-left: 1px solid var(--border);
  z-index: 500; transform: translateX(100%); transition: transform .25s ease;
  display: flex; flex-direction: column;
}
#dob-panel.open { transform: translateX(0); }
.side-panel-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 14px; border-bottom: 1px solid var(--border); flex-shrink: 0;
  font-size: 12px; font-weight: 600; letter-spacing: .08em; color: var(--text-accent);
}
.side-panel-header button {
  background: transparent; border: none; cursor: pointer; color: var(--text-muted);
  font-size: 18px; padding: 2px 4px; border-radius: 4px;
}
.side-panel-header button:hover { color: var(--text-error); }
#dob-panel-body { flex: 1; overflow-y: auto; }

.dob-section {
  border-bottom: 1px solid var(--border); padding: 12px;
}
.dob-section-header {
  font-size: 10px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase;
  color: var(--text-accent); margin-bottom: 10px; padding-bottom: 6px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.dob-field-row { margin-bottom: 8px; }
.dob-field-row label { font-size: 11px; color: var(--text-muted); display: block; margin-bottom: 3px; }

.dob-checklist { display: flex; flex-direction: column; gap: 4px; }
.dob-check-item {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 8px; border-radius: 4px;
  border: 1px solid var(--border); font-size: 11px;
}
.dob-check-item.pass { border-color: rgba(76,175,80,.4); background: rgba(76,175,80,.08); color: var(--text-success); }
.dob-check-item.fail { border-color: rgba(244,67,54,.4); background: rgba(244,67,54,.08); color: var(--text-error); }
.dob-check-item.pending { border-color: var(--border); background: transparent; color: var(--text-muted); }
.dob-check-icon { font-size: 13px; flex-shrink: 0; width: 16px; text-align: center; }
.dob-check-label { flex: 1; color: var(--text-secondary); }
.dob-check-sheet { font-family: var(--font-mono); font-weight: 600; color: var(--text-primary); }

.dob-zoning-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.dob-zoning-item {
  background: rgba(255,255,255,.04); border: 1px solid var(--border);
  border-radius: 4px; padding: 6px 8px;
}
.dob-zoning-label { font-size: 10px; color: var(--text-muted); display: block; }
.dob-zoning-value { font-size: 14px; font-weight: 700; font-family: var(--font-mono); color: var(--text-accent); }

.dob-en1-preview { background: rgba(255,255,255,.04); border: 1px solid var(--border); border-radius: 4px; padding: 10px; font-size: 11px; }
.dob-en1-empty { color: var(--text-muted); text-align: center; padding: 12px; }
.dob-en1-row { display: flex; justify-content: space-between; padding: 4px 0; border-bottom: 1px solid rgba(255,255,255,.06); }
.dob-en1-row:last-child { border-bottom: none; }
.dob-en1-key { color: var(--text-muted); }
.dob-en1-val { color: var(--text-primary); font-family: var(--font-mono); font-weight: 600; }

.modal-info-row { display: flex; align-items: flex-start; gap: 10px; padding: 8px 0; color: var(--text-secondary); }
.modal-info-row svg { flex-shrink: 0; margin-top: 2px; }

/* ---- Arcol Validation Checklist ---- */
.arcol-checklist { display: flex; flex-direction: column; gap: 6px; }
.arcol-check-item { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--text-secondary); padding: 6px 10px; border-radius: 4px; border: 1px solid var(--border); }
.arcol-check-item.pass { border-color: rgba(76,175,80,.4); background: rgba(76,175,80,.08); color: var(--text-success); }
.arcol-check-item.fail { border-color: rgba(244,67,54,.4); background: rgba(244,67,54,.08); color: var(--text-error); }
.arcol-check-icon { font-size: 14px; }

/* ---- Materials Procurement Schedule Panel ---- */
#materials-panel {
  position: fixed; top: 0; right: 0; bottom: 0;
  width: 320px; background: var(--bg-panel); border-left: 1px solid var(--border);
  z-index: 500; transform: translateX(100%); transition: transform .25s ease;
  display: flex; flex-direction: column;
}
#materials-panel.open { transform: translateX(0); }
#materials-panel-body { flex: 1; overflow-y: auto; }

.materials-summary {
  padding: 10px 12px; background: rgba(74,125,189,.08); border-bottom: 1px solid var(--border);
  display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 6px;
}
.materials-summary-item { text-align: center; }
.materials-summary-label { font-size: 9px; color: var(--text-muted); display: block; text-transform: uppercase; letter-spacing: .05em; }
.materials-summary-value { font-size: 16px; font-weight: 700; color: var(--text-accent); font-family: var(--font-mono); display: block; }

.materials-section { border-bottom: 1px solid var(--border); padding: 10px 12px; }
.materials-section-header { font-size: 10px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 8px; }

.materials-row { display: flex; justify-content: space-between; align-items: center; padding: 5px 0; border-bottom: 1px solid rgba(255,255,255,.04); font-size: 11px; }
.materials-row:last-child { border-bottom: none; }
.materials-row-label { color: var(--text-secondary); }
.materials-row-value { font-family: var(--font-mono); font-weight: 600; color: var(--text-accent); }
.materials-row-sub { font-size: 10px; color: var(--text-muted); }
.materials-empty { padding: 24px 12px; text-align: center; color: var(--text-muted); font-size: 12px; }

/* ---- WebRTC ghost viewport overlay (when in follow mode) ---- */
.collab-follow-overlay {
  position: absolute; inset: 0; pointer-events: none; z-index: 20;
  border: 2px solid rgba(74,125,189,.3); border-radius: 4px;
}
/* ---- Energy Analysis Modal ---- */
.modal-energy {
  width: 720px; max-width: 96vw; max-height: 88vh;
  display: flex; flex-direction: column;
}
.modal-energy .modal-body {
  flex: 1; overflow-y: auto; padding: 16px; min-height: 0;
}
.energy-intro {
  display: flex; gap: 12px; align-items: flex-start;
  background: var(--bg-panel); border: 1px solid var(--border);
  border-radius: 6px; padding: 12px 14px; margin-bottom: 14px;
}
.energy-intro-icon { font-size: 24px; line-height: 1; margin-top: 2px; }
.energy-intro-title { font-weight: 700; font-size: 13px; color: var(--text-primary); margin-bottom: 4px; }
.energy-intro-desc { font-size: 11px; color: var(--text-muted); line-height: 1.5; }
.energy-options-row { margin-bottom: 10px; }
.energy-option-label { font-size: 11px; color: var(--text-muted); display: block; }

/* Progress */
.energy-progress-wrap { padding: 20px 0; }
.energy-progress-label { font-size: 12px; color: var(--text-secondary); margin-bottom: 10px; text-align: center; }
.energy-progress-bar {
  height: 6px; background: var(--border); border-radius: 3px; overflow: hidden;
  margin-bottom: 16px;
}
.energy-progress-fill {
  height: 100%; width: 0%; background: var(--accent);
  border-radius: 3px; transition: width 0.4s ease;
}
.energy-progress-steps { display: flex; flex-direction: column; gap: 6px; }
.energy-step {
  font-size: 12px; padding: 6px 10px; border-radius: 4px;
  color: var(--text-muted); background: rgba(255,255,255,.02);
  border: 1px solid transparent; transition: all .2s;
}
.energy-step.active { color: var(--text-accent); border-color: var(--border-accent); background: rgba(74,125,189,.08); }
.energy-step.done { color: var(--text-success); }
.energy-step.done::before { content: '✓ '; }

/* Tabs */
.energy-tabs-bar {
  display: flex; gap: 4px; flex-wrap: wrap; margin-bottom: 12px;
  border-bottom: 1px solid var(--border); padding-bottom: 8px;
}
.energy-tab {
  background: transparent; border: 1px solid var(--border);
  color: var(--text-muted); padding: 4px 10px; border-radius: 4px;
  cursor: pointer; font-size: 11px; font-family: var(--font-mono);
  transition: all .15s;
}
.energy-tab:hover { border-color: var(--accent); color: var(--text-secondary); }
.energy-tab.active { background: var(--bg-panel-active); border-color: var(--border-accent); color: var(--text-accent); }
.energy-tab.pass { border-color: rgba(76,175,80,.4); }
.energy-tab.fail { border-color: rgba(244,67,54,.4); }

/* Compliance form content */
.en-form-header {
  display: flex; align-items: center; gap: 8px; margin-bottom: 12px;
}
.en-form-badge {
  font-size: 10px; font-weight: 700; padding: 3px 8px;
  border-radius: 4px; font-family: var(--font-mono); letter-spacing: .04em;
}
.en-form-badge.pass { background: rgba(76,175,80,.15); color: var(--text-success); border: 1px solid rgba(76,175,80,.3); }
.en-form-badge.fail { background: rgba(244,67,54,.12); color: var(--text-error); border: 1px solid rgba(244,67,54,.25); }
.en-form-title { font-weight: 700; font-size: 13px; }
.en-form-desc { font-size: 11px; color: var(--text-muted); margin-bottom: 10px; }

.en-items-table { width: 100%; border-collapse: collapse; font-size: 12px; }
.en-items-table th {
  text-align: left; font-size: 10px; letter-spacing: .08em; text-transform: uppercase;
  color: var(--text-muted); padding: 4px 8px; border-bottom: 1px solid var(--border);
}
.en-items-table td { padding: 6px 8px; border-bottom: 1px solid rgba(255,255,255,.04); }
.en-items-table tr:last-child td { border-bottom: none; }
.en-actual { font-family: var(--font-mono); font-weight: 600; color: var(--text-primary); }
.en-limit { font-family: var(--font-mono); color: var(--text-muted); }
.en-pass-icon { font-size: 12px; }

/* Summary bar at bottom of compliance content */
.energy-summary-bar {
  margin-top: 12px; padding: 10px 12px;
  background: var(--bg-panel); border: 1px solid var(--border);
  border-radius: 6px; display: flex; gap: 16px; flex-wrap: wrap;
  font-size: 11px;
}
.energy-summary-item { display: flex; flex-direction: column; gap: 2px; }
.energy-summary-label { color: var(--text-muted); font-size: 10px; text-transform: uppercase; letter-spacing: .07em; }
.energy-summary-value { font-family: var(--font-mono); font-weight: 700; color: var(--text-primary); font-size: 13px; }
.energy-summary-value.pass { color: var(--text-success); }
.energy-summary-value.fail { color: var(--text-error); }

.collab-follow-badge {
  position: absolute; top: 8px; right: 8px;
  background: rgba(74,125,189,.85); color: #fff; font-size: 10px;
  padding: 3px 8px; border-radius: 10px; font-weight: 600;
  pointer-events: none;
}

/* ── EN-1 Workbook (Phase 10) ───────────────────────────────────────── */
#energy-en1wb-state {
  display: flex; flex-direction: column; gap: 0;
  overflow-y: auto; max-height: 520px; padding-bottom: 8px;
}

.en1wb-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 8px; padding: 8px 0 10px; border-bottom: 1px solid var(--border); margin-bottom: 4px;
  flex-wrap: wrap;
}
.en1wb-autofill-banner {
  display: flex; align-items: center; gap: 6px;
  font-size: 11px; color: var(--text-muted);
  background: rgba(255,193,7,.08); border: 1px solid rgba(255,193,7,.2);
  padding: 5px 10px; border-radius: 5px; flex: 1; min-width: 200px;
}
.en1wb-autofill-icon { font-size: 14px; }
.en1wb-actions { display: flex; gap: 6px; flex-shrink: 0; align-items: center; }

.en1wb-errors {
  background: rgba(244,67,54,.08); border: 1px solid rgba(244,67,54,.25);
  border-radius: 5px; padding: 8px 12px; margin: 6px 0;
  font-size: 11px; color: var(--text-error);
}
.en1wb-errors ul { margin: 4px 0 0; padding-left: 16px; }
.en1wb-errors li { margin-bottom: 2px; }

.en1wb-section {
  padding: 10px 0 12px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.en1wb-section:last-child { border-bottom: none; }
.en1wb-section-title {
  font-size: 11px; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; color: var(--text-muted);
  margin-bottom: 8px; padding-bottom: 4px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.en1wb-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 8px 16px;
}
@media (max-width: 680px) { .en1wb-grid { grid-template-columns: 1fr; } }
.en1wb-field { display: flex; flex-direction: column; gap: 3px; }
.en1wb-label {
  font-size: 10px; color: var(--text-muted); letter-spacing: .03em; display: flex; align-items: center; gap: 3px;
}
.en1wb-auto-label { color: #f0c040; }
.en1wb-auto-icon {
  font-size: 11px; cursor: help;
  background: rgba(255,193,7,.12); border-radius: 3px; padding: 0 3px;
}
.en1wb-input {
  background: var(--bg-input); color: var(--text-primary);
  border: 1px solid var(--border); border-radius: 4px;
  padding: 5px 8px; font-size: 11px; font-family: var(--font);
  transition: border-color .15s;
}
.en1wb-input:focus { outline: none; border-color: var(--accent); }
.en1wb-auto-input { border-color: rgba(255,193,7,.3); background: rgba(255,193,7,.04); }
.en1wb-auto-input:focus { border-color: #f0c040; }
.en1wb-overridden { border-color: var(--border) !important; background: var(--bg-input) !important; }
/* Validation failure highlight — applied by en1wbValidate on error, cleared on fix */
.en1wb-input-error {
  border-color: var(--text-error) !important;
  background: rgba(244,67,54,.08) !important;
  box-shadow: 0 0 0 2px rgba(244,67,54,.15);
}
.en1wb-input-error:focus { border-color: var(--text-error) !important; }

.en1wb-compliance-row {
  font-size: 10px; margin-top: 1px; min-height: 14px;
}
.en1wb-pass { color: var(--text-success); font-weight: 700; }
.en1wb-fail { color: var(--text-error); font-weight: 700; }
.en1wb-limit-text { color: var(--text-muted); margin-left: 4px; }

.en1wb-calculated-field .en1wb-calc-value {
  font-family: var(--font-mono); font-size: 14px; font-weight: 700;
  padding: 4px 0; color: var(--text-primary);
}
.en1wb-calculated-field .en1wb-calc-value.en1wb-pass { color: var(--text-success); }
.en1wb-calculated-field .en1wb-calc-value.en1wb-fail { color: var(--text-error); }

/* EN-1 Workbook tab in the energy tabs bar */
.energy-tab.en1wb-workbook-tab {
  background: rgba(255,193,7,.07); border-color: rgba(255,193,7,.2);
  color: #f0c040;
}
.energy-tab.en1wb-workbook-tab.active {
  background: rgba(255,193,7,.18); color: #f0c040; border-color: #f0c040;
}