/* ── Reset & Variables ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:          #1c1c2e;
  --panel-bg:    #242438;
  --panel-border:#3c3c58;
  --input-bg:    #2e2e48;
  --input-border:#505070;
  --text:        #eeeef8;
  --text-dim:    #a0a0c8;
  --text-muted:  #7070a8;
  --accent:      #4e8eff;
  --accent-dim:  #1a3a7a;
  --green:       #3ecf6e;
  --red:         #e05555;
  --gold:        #f0c040;
  --header-h:    48px;
  --panel-w:     260px;
  --radius:      6px;
  --font:        -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html, body {
  height: 100%;
  overflow: hidden;
  font-family: var(--font);
  font-size: 13px;
  color: var(--text);
  background: var(--bg);
}

/* ── Header ─────────────────────────────────────────────────────────────── */
.app-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: var(--panel-bg);
  border-bottom: 1px solid var(--panel-border);
  display: flex;
  align-items: center;
  padding: 0 12px;
  gap: 12px;
  z-index: 100;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 14px;
  color: #fff;
  letter-spacing: 0.3px;
  flex-shrink: 0;
}

.brand-icon {
  width: 28px; height: 28px;
  background: var(--accent);
  border-radius: 5px;
  display: grid;
  place-items: center;
  font-size: 16px;
  color: #fff;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  min-width: 0;
  overflow: visible;
}

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

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-size: 12px;
  font-family: var(--font);
  font-weight: 500;
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s;
  white-space: nowrap;
  line-height: 1;
}

.btn-ghost {
  background: rgba(255,255,255,0.04);
  border-color: var(--input-border);
  color: var(--text);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.1);
  color: #fff;
  border-color: var(--accent);
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  width: 100%;
  justify-content: center;
  padding: 7px 12px;
  font-size: 13px;
}
.btn-primary:hover { background: #6aa0ff; border-color: #6aa0ff; }
.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-secondary {
  background: transparent;
  border-color: var(--input-border);
  color: var(--text-dim);
  justify-content: center;
  padding: 6px 12px;
  margin-top: 6px;
}
.btn-secondary:hover { background: var(--input-bg); color: var(--text); border-color: var(--accent); }

.btn-danger {
  background: transparent;
  border-color: var(--red);
  color: var(--red);
  width: 100%;
  justify-content: center;
  padding: 6px 12px;
  margin-top: 6px;
}
.btn-danger:hover { background: rgba(224,85,85,0.12); }

.btn-add {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
  padding: 3px 8px;
  font-size: 11px;
  border-radius: 4px;
}
.btn-add:hover { background: var(--accent); color: #fff; }

.btn-sm {
  padding: 3px 8px;
  font-size: 11px;
}

/* ── App Layout ──────────────────────────────────────────────────────────── */
.app-body {
  position: fixed;
  top: var(--header-h);
  left: 0; right: 0; bottom: 0;
  display: flex;
  overflow: hidden;
}

/* ── Legacy panel classes (kept for compatibility) ───────────────────────── */
.panel {
  width: var(--panel-w);
  min-width: var(--panel-w);
  background: var(--panel-bg);
  border-color: var(--panel-border);
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.panel-left  { border-right: 1px solid var(--panel-border); }
.panel-right { border-left:  1px solid var(--panel-border); }

.panel-section {
  padding: 10px 12px;
  border-bottom: 1px solid var(--panel-border);
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}

/* ── Left Sidebar ────────────────────────────────────────────────────────── */
.scene-sidebar {
  width: 200px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  background: var(--panel-bg);
  border-right: 1px solid var(--panel-border);
  overflow: hidden;
}

.sidebar-top {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
  min-height: 0;
}

.sidebar-bottom {
  padding: 8px;
  border-top: 1px solid var(--panel-border);
  flex-shrink: 0;
}

.scene-section-label {
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-dim);
  margin-bottom: 4px;
}

/* ── Collapsible sidebar sections ───────────────────────────────────────── */
.sb-section {
  border-bottom: 1px solid var(--panel-border);
  margin-bottom: 2px;
}
.sb-hdr {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 2px 6px;
  cursor: pointer;
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-dim);
  user-select: none;
  transition: color 0.12s;
}
.sb-hdr:hover { color: var(--text); }
.sb-chevron {
  flex-shrink: 0;
  transition: transform 0.18s ease;
  opacity: 0.5;
}
.sb-section.sb-collapsed .sb-chevron { transform: rotate(-90deg); }
.sb-body {
  overflow: hidden;
  max-height: 600px;
  transition: max-height 0.22s ease, opacity 0.18s ease;
  opacity: 1;
  padding-bottom: 6px;
}
.sb-section.sb-collapsed .sb-body {
  max-height: 0;
  opacity: 0;
  padding-bottom: 0;
  pointer-events: none;
}

.scene-obj-list {
  margin-bottom: 2px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.scene-add-btn {
  width: 100%;
  padding: 4px;
  font-size: 10px;
  font-family: var(--font);
  background: none;
  border: 1px dashed var(--input-border);
  border-radius: var(--radius);
  color: var(--text-dim);
  cursor: pointer;
  margin-top: 3px;
  transition: all 0.12s;
}
.scene-add-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ── Right Inspector Panel ───────────────────────────────────────────────── */
.inspector-panel {
  width: 300px;
  flex-shrink: 0;
  background: var(--panel-bg);
  border-left: 1px solid var(--panel-border);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.2s ease, margin-right 0.2s ease;
  margin-right: -300px;
}

.inspector-panel.open {
  transform: translateX(0);
  margin-right: 0;
}

.inspector-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-bottom: 1px solid var(--panel-border);
  flex-shrink: 0;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--text-muted);
}

.inspector-close {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 16px;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
  line-height: 1;
  transition: background 0.1s, color 0.1s;
}
.inspector-close:hover { background: var(--input-bg); color: var(--text); }

.inspector-body {
  flex: 1;
  overflow-y: auto;
  padding: 10px 12px;
}

/* Inspector internal section grouping */
.insp-section {
  padding-bottom: 10px;
  margin-bottom: 10px;
  border-bottom: 1px solid var(--panel-border);
}
.insp-section:last-child { border-bottom: none; margin-bottom: 0; }

.insp-section-label {
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

/* Video-active badge in inspector */
.screen-vid-badge {
  margin-top: 6px;
  padding: 5px 8px;
  border-radius: 5px;
  background: rgba(74,158,255,0.1);
  border: 1px solid rgba(74,158,255,0.28);
  color: #6eb4ff;
  font-size: 11px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 5px;
  animation: vid-pulse 2.5s ease-in-out infinite;
}
@keyframes vid-pulse {
  0%,100% { opacity: 1; }
  50%      { opacity: 0.65; }
}

/* ── Canvas ──────────────────────────────────────────────────────────────── */
.canvas-area {
  flex: 1;
  position: relative;
  overflow: hidden;
}

#three-canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.canvas-overlay {
  position: absolute;
  pointer-events: none;
}

.canvas-hint {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0,0,0,0.5);
  color: var(--text-dim);
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 20px;
  pointer-events: none;
  transition: opacity 0.3s;
}

.view-controls {
  position: absolute;
  top: 10px;
  right: 10px;
  display: flex;
  gap: 4px;
}

.wall-label-overlay {
  position: absolute;
  pointer-events: none;
  font-size: 11px;
  font-weight: 600;
  color: #fff;
  text-shadow: 0 1px 4px rgba(0,0,0,0.9);
  white-space: nowrap;
  transform: translateX(-50%);
}

/* ── Wall List ───────────────────────────────────────────────────────────── */
.wall-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.wall-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 6px;
  border-radius: var(--radius);
  border: 1px solid var(--panel-border);
  cursor: pointer;
  transition: background 0.1s, border-color 0.1s;
  background: var(--input-bg);
}

.wall-item:hover { border-color: var(--accent-dim); }
.wall-item.selected {
  border-color: var(--accent);
  background: rgba(78,142,255,0.08);
}

.wall-item-swatch {
  width: 24px; height: 18px;
  border-radius: 3px;
  flex-shrink: 0;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.1);
}

.wall-item-swatch canvas {
  width: 100%; height: 100%;
  display: block;
}

.wall-item-info {
  flex: 1;
  overflow: hidden;
  min-width: 0;
}

.wall-item-name {
  font-size: 11px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.wall-item-sub {
  font-size: 9px;
  color: var(--text-dim);
  margin-top: 1px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.wall-item-del {
  width: 16px; height: 16px;
  display: grid;
  place-items: center;
  border-radius: 3px;
  color: var(--text-muted);
  cursor: pointer;
  flex-shrink: 0;
  font-size: 13px;
  line-height: 1;
  transition: color 0.1s, background 0.1s;
}
.wall-item-del:hover { color: var(--red); background: rgba(224,85,85,0.15); }

.wall-empty {
  text-align: center;
  color: var(--text-muted);
  font-size: 11px;
  padding: 8px 0;
}

/* ── Position Nudge ──────────────────────────────────────────────────────── */
.nudge-section { display: flex; flex-direction: column; gap: 6px; }
.nudge-label {
  font-size: 10px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 2px;
}
.nudge-row {
  display: flex;
  align-items: center;
  gap: 3px;
}
.nudge-row input[type=number] {
  flex: 1;
  text-align: center;
  min-width: 0;
}

.nudge-btn {
  flex-shrink: 0;
  width: 28px; height: 24px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 4px;
  color: var(--text-dim);
  font-size: 11px;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: background 0.1s, color 0.1s;
}
.nudge-btn:hover { background: var(--accent-dim); color: var(--accent); border-color: var(--accent); }

.nudge-btn-wide {
  width: 34px;
  font-size: 10px;
}

.kbd-hint {
  font-size: 10px;
  color: var(--text-muted);
  margin-top: 4px;
  line-height: 1.5;
}

kbd {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 3px;
  padding: 1px 4px;
  font-size: 10px;
  font-family: var(--font);
  color: var(--text-dim);
}

/* ── Form Elements ───────────────────────────────────────────────────────── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 8px;
}

.form-row {
  display: flex;
  gap: 8px;
}
.form-row .form-group { flex: 1; margin-bottom: 8px; }

label {
  font-size: 10px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

input[type=text],
input[type=number],
select {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 12px;
  font-family: var(--font);
  padding: 5px 8px;
  width: 100%;
  outline: none;
  transition: border-color 0.12s;
  -moz-appearance: textfield;
}
input[type=number]::-webkit-inner-spin-button { opacity: 0.5; }
input:focus, select:focus { border-color: var(--accent); }
select { cursor: pointer; }

/* ── Build Preview ───────────────────────────────────────────────────────── */
.build-preview {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius);
  padding: 8px 10px;
  margin-bottom: 8px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.preview-row {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
}

.preview-label { color: var(--text-dim); }
.preview-val { color: var(--text); font-weight: 500; }
.preview-val.accent { color: var(--accent); }

/* ── Stats Grid ──────────────────────────────────────────────────────────── */
.stats-grid {
  display: flex;
  flex-direction: column;
  gap: 3px;
  margin-bottom: 6px;
}

.stat-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 11px;
  padding: 2px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.stat-label { color: var(--text-dim); }
.stat-val { color: var(--text); font-weight: 600; font-size: 12px; }
.stat-val.gold { color: var(--gold); }
.stat-val.green { color: var(--green); }
.stat-val.accent { color: var(--accent); }

/* ── Totals ──────────────────────────────────────────────────────────────── */
.totals-row {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  padding: 2px 0;
}
.totals-label { color: var(--text-muted); }
.totals-val { color: var(--text-dim); font-weight: 600; }
.totals-row.total-line {
  border-top: 1px solid var(--panel-border);
  margin-top: 4px;
  padding-top: 6px;
}
.totals-row.total-line .totals-label { color: var(--text-dim); }
.totals-row.total-line .totals-val { color: var(--gold); font-size: 12px; }

/* ── Scrollbar ───────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--panel-border); border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ── Modal / Overlay ─────────────────────────────────────────────────────── */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 200;
  display: grid;
  place-items: center;
}

.modal {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  padding: 20px;
  width: 320px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.modal h3 { font-size: 14px; color: var(--text); }
.modal p { font-size: 12px; color: var(--text-dim); line-height: 1.5; }
.modal-actions { display: flex; gap: 8px; justify-content: flex-end; }

/* ── PDF import scale bar ────────────────────────────────────────────────── */
.pdf-controls {
  position: absolute;
  bottom: 40px; left: 50%; transform: translateX(-50%);
  background: rgba(22,22,31,0.92);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 8px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
}

.pdf-controls input[type=range] {
  width: 90px;
}

/* ── Header tool buttons (Select / Move / Rotate / Pan / Orbit) ──────────── */
.header-tool-btn {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--input-border);
  color: var(--text-dim);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
  transition: background 0.12s, border-color 0.12s, color 0.12s;
}
.header-tool-btn:hover {
  background: rgba(78,142,255,0.12);
  border-color: var(--accent-dim);
  color: var(--text);
}
.header-tool-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* ── Red action buttons (Spec PDF, Raster Builder) ───────────────────────── */
.btn-red-action {
  background: rgba(220,50,50,0.15);
  border: 1px solid rgba(220,50,50,0.4);
  color: #ff7070;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
  transition: background 0.12s, border-color 0.12s;
}
.btn-red-action:hover {
  background: rgba(220,50,50,0.28);
  border-color: rgba(220,50,50,0.7);
  color: #ffaaaa;
}

/* ── Sidebar projects bar ────────────────────────────────────────────────── */
.sb-projects-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-bottom: 1px solid var(--panel-border);
  overflow: hidden;
}
.sb-projects-btn {
  flex-shrink: 0;
  font-size: 10px;
  padding: 3px 7px;
}

/* ── Tool Bar (canvas overlay — Truss only) ──────────────────────────────── */
.tool-bar {
  position: absolute;
  top: 10px;
  left: 10px;
  display: flex;
  gap: 4px;
  pointer-events: all;
  z-index: 10;
}

.tool-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  background: rgba(22, 22, 35, 0.88);
  border: 1px solid var(--input-border);
  border-radius: var(--radius);
  color: var(--text-dim);
  font-size: 11px;
  font-family: var(--font);
  font-weight: 500;
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s, color 0.12s;
  white-space: nowrap;
  line-height: 1;
  backdrop-filter: blur(4px);
}

.tool-btn:hover {
  background: rgba(40, 40, 70, 0.95);
  color: var(--text);
  border-color: var(--accent-dim);
}

.tool-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* Truss tool separator */
.tool-bar-sep {
  width: 1px;
  height: 22px;
  background: var(--panel-border);
  margin: 0 2px;
  align-self: center;
}

/* Green truss button — always tinted green, active = solid green */
.tool-btn[data-tool="truss"] {
  color: var(--green);
  border-color: rgba(62,207,110,0.35);
}
.tool-btn[data-tool="truss"]:hover {
  background: rgba(62,207,110,0.1);
  border-color: var(--green);
  color: var(--green);
}
.tool-btn[data-tool="truss"].active {
  background: rgba(62,207,110,0.18);
  border-color: var(--green);
  color: var(--green);
}

/* ── Support Type Toggle ─────────────────────────────────────────────────── */
.support-toggle {
  display: flex;
  gap: 6px;
}

.support-opt {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 5px 8px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 11px;
  color: var(--text-dim);
  transition: background 0.12s, border-color 0.12s, color 0.12s;
  user-select: none;
}

.support-opt input[type=radio] { display: none; }

.support-opt:has(input:checked) {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}

.support-opt:hover {
  border-color: var(--accent-dim);
  color: var(--text);
}

/* ── Truss List ──────────────────────────────────────────────────────────── */
.truss-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 6px;
  border-radius: var(--radius);
  border: 1px solid var(--panel-border);
  cursor: pointer;
  transition: background 0.1s, border-color 0.1s;
  background: var(--input-bg);
}

.truss-item:hover { border-color: var(--accent-dim); }
.truss-item.selected {
  border-color: var(--accent);
  background: rgba(78,142,255,0.08);
}

.truss-item-icon {
  font-size: 14px;
  flex-shrink: 0;
}

.truss-item-info {
  flex: 1;
  overflow: hidden;
  min-width: 0;
}

.truss-item-name {
  font-size: 11px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.truss-item-sub {
  font-size: 9px;
  color: var(--text-dim);
  margin-top: 1px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.truss-item-del {
  width: 16px; height: 16px;
  display: grid;
  place-items: center;
  border-radius: 3px;
  color: var(--text-muted);
  cursor: pointer;
  flex-shrink: 0;
  font-size: 13px;
  line-height: 1;
  transition: color 0.1s, background 0.1s;
}
.truss-item-del:hover { color: var(--red); background: rgba(224,85,85,0.15); }

/* ── Truss Config Tabs ───────────────────────────────────────────────────── */
.truss-config-tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 10px;
}

.truss-tab {
  flex: 1;
  cursor: pointer;
  user-select: none;
}

.truss-tab input[type=radio] { display: none; }

.truss-tab span {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 5px 6px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius);
  font-size: 11px;
  color: var(--text-dim);
  transition: all 0.12s;
}

.truss-tab:has(input:checked) span {
  background: rgba(62,207,110,0.12);
  border-color: var(--green);
  color: var(--green);
}

.truss-tab span:hover { border-color: var(--green); color: var(--green); }

/* ── Truss list (flex column) ────────────────────────────────────────────── */
.truss-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* ── Truss checkbox row ──────────────────────────────────────────────────── */
.truss-check-row {
  display: flex;
  align-items: center;
  margin-bottom: 4px;
}

.truss-check-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text-dim);
  cursor: pointer;
  user-select: none;
}

.truss-check-label input[type=checkbox] {
  width: 14px; height: 14px;
  cursor: pointer;
  accent-color: var(--green);
}

/* ── Truss Add button (green primary) ────────────────────────────────────── */
.btn-truss-add {
  background: rgba(62,207,110,0.15) !important;
  border-color: var(--green) !important;
  color: var(--green) !important;
  margin-top: 6px;
}
.btn-truss-add:hover {
  background: rgba(62,207,110,0.28) !important;
}

/* ── Truss Stats Box ─────────────────────────────────────────────────────── */
.truss-stats-box {
  margin-top: 8px;
  background: var(--input-bg);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 8px 10px;
}

.ts-head {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 6px;
}

/* ── Scene Theme Buttons ─────────────────────────────────────────────────── */
.theme-row {
  display: flex;
  gap: 4px;
}

.theme-btn {
  flex: 1;
  padding: 4px 0;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius);
  color: var(--text-dim);
  font-size: 10px;
  font-family: var(--font);
  font-weight: 500;
  cursor: pointer;
  text-align: center;
  transition: background 0.12s, border-color 0.12s, color 0.12s;
}

.theme-btn:hover {
  border-color: var(--accent-dim);
  color: var(--text);
}

.theme-btn.active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}

/* ── Inventory buttons (header) ──────────────────────────────────────────── */
.btn-inventory {
  background: rgba(62,207,110,0.08);
  border-color: rgba(62,207,110,0.3);
  color: var(--green);
}
.btn-inventory:hover {
  background: rgba(62,207,110,0.18);
  border-color: var(--green);
}
.btn-inventory-out {
  background: rgba(240,192,64,0.08);
  border-color: rgba(240,192,64,0.3);
  color: var(--gold);
}
.btn-inventory-out:hover {
  background: rgba(240,192,64,0.18);
  border-color: var(--gold);
}

/* Inventory filter toggle button */
.btn-inv-toggle {
  display: flex;
  align-items: center;
  gap: 5px;
  background: rgba(255,255,255,0.04);
  border-color: var(--panel-border);
  color: var(--text-dim);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}
.btn-inv-toggle:hover {
  border-color: var(--text-dim);
  color: var(--text);
}
/* ON state */
.btn-inv-toggle.inv-on {
  background: rgba(62,207,110,0.08);
  border-color: rgba(62,207,110,0.45);
  color: var(--green);
}
.btn-inv-toggle.inv-on:hover {
  background: rgba(62,207,110,0.16);
  border-color: var(--green);
}
/* The pill track */
.inv-toggle-track {
  display: inline-flex;
  align-items: center;
  width: 26px;
  height: 14px;
  border-radius: 7px;
  background: var(--input-border);
  position: relative;
  flex-shrink: 0;
  transition: background 0.2s;
}
.inv-on .inv-toggle-track {
  background: var(--green);
}
/* The sliding thumb */
.inv-toggle-thumb {
  position: absolute;
  left: 2px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #fff;
  transition: left 0.2s;
}
.inv-on .inv-toggle-thumb {
  left: 14px;
}
.inv-toggle-label {
  font-size: 11px;
}

/* Sample PDF button — subtle accent so it stands out from plain Spec PDF */
#btn-sample-pdf {
  background: rgba(74,158,255,0.07);
  border-color: rgba(74,158,255,0.28);
  color: #6eb4ff;
}
#btn-sample-pdf:hover {
  background: rgba(74,158,255,0.16);
  border-color: #4a9eff;
  color: #afd4ff;
}

/* ── Raster Builder Modal ────────────────────────────────────────────────── */
.rb-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.rb-modal {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  max-width: 960px;
  width: 100%;
  max-height: 90vh;
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0,0,0,0.6);
}

.rb-header {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--panel-border);
  gap: 10px;
  flex-shrink: 0;
}

.rb-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  flex: 1;
}
.rb-title em { font-style: normal; color: var(--accent); }

.rb-dims {
  font-size: 11px;
  color: var(--text-muted);
}

.rb-close-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 16px;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
  line-height: 1;
}
.rb-close-btn:hover { background: var(--input-bg); color: var(--text); }

.rb-body {
  display: flex;
  overflow: hidden;
  flex: 1;
  min-height: 0;
}

/* ── Preview pane ──────────────────────────────────────────────────────────── */
.rb-preview-wrap {
  flex: 1;
  background: #000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
  gap: 8px;
  min-width: 0;
}

#rb-preview {
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 4px;
  max-width: 100%;
  max-height: calc(90vh - 140px);
  display: block;
}

.rb-preview-label {
  font-size: 10px;
  color: #404060;
}

/* ── Controls pane ─────────────────────────────────────────────────────────── */
.rb-controls {
  width: 240px;
  min-width: 240px;
  overflow-y: auto;
  border-left: 1px solid var(--panel-border);
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.rb-section {
  padding: 8px 0;
  border-bottom: 1px solid var(--panel-border);
}
.rb-section:last-child { border-bottom: none; }

.rb-section-title {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 6px;
}

/* Toggle switches */
.rb-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
}
.rb-toggle input { display: none; }

.rb-toggle-track {
  width: 30px; height: 16px;
  background: var(--input-border);
  border-radius: 8px;
  position: relative;
  flex-shrink: 0;
  transition: background 0.15s;
}
.rb-toggle-track::after {
  content: '';
  position: absolute;
  width: 12px; height: 12px;
  background: #fff;
  border-radius: 50%;
  top: 2px; left: 2px;
  transition: transform 0.15s;
}
.rb-toggle input:checked + .rb-toggle-track { background: var(--accent); }
.rb-toggle input:checked + .rb-toggle-track::after { transform: translateX(14px); }

.rb-toggle-label {
  font-size: 12px;
  color: var(--text-dim);
}
.rb-toggle:hover .rb-toggle-label { color: var(--text); }

/* Sub-section (shown/hidden with toggle) */
.rb-sub {
  margin-top: 8px;
  padding-left: 4px;
}

.rb-field-label {
  display: block;
  font-size: 10px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-bottom: 4px;
}

.rb-select {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 11px;
  padding: 4px 6px;
  cursor: pointer;
}
.rb-select:focus { outline: none; border-color: var(--accent); }

input[type=range] {
  width: 100%;
  accent-color: var(--accent);
  cursor: pointer;
}

/* Background radio buttons */
.rb-bg-row {
  display: flex;
  gap: 8px;
}
.rb-bg-opt {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: var(--text-dim);
  cursor: pointer;
}
.rb-bg-opt input { cursor: pointer; accent-color: var(--accent); }
.rb-bg-swatch {
  display: inline-block;
  width: 16px; height: 16px;
  border-radius: 3px;
}

/* Footer */
.rb-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-top: 1px solid var(--panel-border);
  flex-shrink: 0;
}

.rb-res-note {
  font-size: 11px;
  color: var(--text-muted);
}

.rb-footer-btns {
  display: flex;
  gap: 8px;
  align-items: center;
}

.rb-dl-btn {
  background: var(--accent);
  border: none;
  border-radius: var(--radius);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  font-family: var(--font);
  padding: 7px 18px;
  cursor: pointer;
  transition: background 0.12s;
}
.rb-dl-btn:hover { background: #6aa0ff; }

.rb-save-btn {
  background: #1a6e40;
  border: none;
  border-radius: var(--radius);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  font-family: var(--font);
  padding: 7px 18px;
  cursor: pointer;
  transition: background 0.12s;
}
.rb-save-btn:hover { background: #27a05e; }

/* ── Inventory Toast ─────────────────────────────────────────────────────── */
.inv-toast {
  position: fixed;
  top: 58px;
  right: 16px;
  z-index: 600;
  animation: inv-slide-in 0.2s ease;
}

@keyframes inv-slide-in {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.inv-toast-inner {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  padding: 12px 14px;
  max-width: 320px;
  font-size: 12px;
  color: var(--text);
  line-height: 1.55;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  position: relative;
}

.inv-toast-close {
  position: absolute;
  top: 8px; right: 8px;
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 13px;
  cursor: pointer;
  padding: 2px 5px;
  border-radius: 4px;
  line-height: 1;
}
.inv-toast-close:hover { background: var(--input-bg); }

/* ── Section sub-header ──────────────────────────────────────────────────── */
.section-sub-header {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 6px;
}

/* ── Floor Style Buttons ─────────────────────────────────────────────────── */
.floor-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
}

.floor-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 4px 2px 3px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius);
  color: var(--text-dim);
  font-size: 9px;
  font-family: var(--font);
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s, color 0.12s;
  line-height: 1.2;
}

.floor-btn:hover {
  border-color: var(--accent-dim);
  color: var(--text);
}

.floor-btn.active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}

.floor-icon {
  font-size: 12px;
  line-height: 1;
}

/* ── Surface Colour Presets ──────────────────────────────────────────────── */
.surface-presets {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  margin-bottom: 4px;
}

.surf-preset {
  padding: 5px 4px;
  font-size: 10px;
  font-family: var(--font);
  font-weight: 500;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius);
  color: var(--text-dim);
  cursor: pointer;
  text-align: center;
  transition: border-color 0.12s, color 0.12s, background 0.12s;
  white-space: nowrap;
  overflow: hidden;
}

.surf-preset:hover {
  border-color: var(--accent-dim);
  color: var(--text);
}

.surf-preset.active,
.surf-preset.active-surf,
.surf-preset.active-fascia {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(78,142,255,0.1);
}

.surf-preset.curtain {
  background: repeating-linear-gradient(
    90deg,
    var(--input-bg) 0%,
    color-mix(in srgb, var(--input-bg) 70%, #000) 5%,
    var(--input-bg) 10%
  );
}

/* ── Scale Figure Button ─────────────────────────────────────────────────── */
.scale-figure-btn {
  display: flex;
  align-items: center;
  gap: 7px;
  width: 100%;
  padding: 5px 8px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius);
  color: var(--text-dim);
  font-size: 10px;
  font-family: var(--font);
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s, color 0.12s;
  text-align: left;
}

.scale-figure-btn:hover {
  border-color: var(--accent-dim);
  color: var(--text);
}

.scale-figure-btn.active {
  background: rgba(78, 142, 255, 0.1);
  border-color: var(--accent);
  color: var(--accent);
}

/* ── Snap Indicator ──────────────────────────────────────────────────────── */
.snap-indicator {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(62, 207, 110, 0.18);
  border: 1px solid var(--green);
  color: var(--green);
  font-size: 11px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s;
  white-space: nowrap;
  z-index: 20;
}

/* ── Generic Modal (Project Info, etc.) ─────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 600;
  background: rgba(0,0,0,0.65);
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal-box {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.65);
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid var(--panel-border);
}
.modal-body {
  overflow-y: auto;
  flex: 1;
}
.modal-close-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 14px;
  padding: 2px 6px;
  border-radius: 4px;
}
.modal-close-btn:hover { background: var(--input-bg); color: var(--text); }
.modal-footer { background: var(--panel-bg); }

/* ── Build Modal ─────────────────────────────────────────────────────────── */
.build-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 500;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
}

.build-modal-box {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  width: 440px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
}

.build-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid var(--panel-border);
  flex-shrink: 0;
}

.build-modal-tabs {
  display: flex;
  gap: 6px;
}

.bm-tab {
  padding: 5px 12px;
  font-size: 12px;
  font-family: var(--font);
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 20px;
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.12s;
}
.bm-tab:hover { border-color: var(--accent-dim); color: var(--text); }
.bm-tab.active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}

.build-modal-close {
  background: none;
  border: none;
  font-size: 18px;
  color: var(--text-dim);
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
  line-height: 1;
  transition: background 0.1s, color 0.1s;
}
.build-modal-close:hover { background: var(--input-bg); color: var(--text); }

.build-modal-content {
  flex: 1;
  overflow-y: auto;
  padding: 14px;
}

/* ── Tour ──────────────────────────────────────────────────────────────────── */
/* ── Tour overlay / dim ──────────────────────────────────────────────────────── */
#tour-overlay {
  display: none;
  position: fixed; inset: 0;
  z-index: 8999;
  background: rgba(0,0,8,0.45);
  pointer-events: none;
}

/* Highlight ring — punches through the overlay via box-shadow spread */
#tour-hl {
  display: none;
  position: fixed;
  z-index: 9000;
  pointer-events: none;
  border-radius: 10px;
  border: 2px solid rgba(100,170,255,0.8);
  box-shadow:
    0 0 0 2px rgba(78,142,255,0.5),
    0 0 20px 6px rgba(78,142,255,0.6);
  animation: tour-ring-pulse 1.8s ease-in-out infinite;
  transition: left 0.28s cubic-bezier(.4,0,.2,1),
              top  0.28s cubic-bezier(.4,0,.2,1),
              width  0.28s cubic-bezier(.4,0,.2,1),
              height 0.28s cubic-bezier(.4,0,.2,1);
}
@keyframes tour-ring-pulse {
  0%, 100% { border-color: rgba(100,170,255,0.8); box-shadow: 0 0 0 2px rgba(78,142,255,0.4), 0 0 20px 6px rgba(78,142,255,0.5); }
  50%       { border-color: rgba(160,210,255,1.0); box-shadow: 0 0 0 3px rgba(120,190,255,0.5), 0 0 32px 10px rgba(100,170,255,0.7); }
}

/* Tooltip card */
#tour-tip {
  display: none;
  position: fixed;
  z-index: 9001;
  width: 320px;
  background: #111827;
  color: #e2e8f0;
  border-radius: 14px;
  border: 1px solid rgba(78,142,255,0.25);
  padding: 0;
  box-shadow: 0 20px 60px rgba(0,0,0,0.7), 0 0 0 1px rgba(255,255,255,0.04);
  font-size: 13px;
  overflow: hidden;
}
.tour-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px 10px;
  background: linear-gradient(90deg, #1e3a8a 0%, #1e40af 100%);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.tour-logo-mark {
  font-size: 8.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #93c5fd;
  background: rgba(255,255,255,0.1);
  padding: 2px 7px;
  border-radius: 4px;
}
.tour-skip-btn {
  background: none; border: none; cursor: pointer;
  color: rgba(255,255,255,0.5); font-size: 13px; padding: 2px 6px;
  border-radius: 4px; line-height: 1;
  transition: color 0.12s, background 0.12s;
}
.tour-skip-btn:hover { color: #fff; background: rgba(255,255,255,0.1); }
.tour-title {
  font-weight: 700; font-size: 15px; color: #f1f5f9;
  padding: 14px 16px 0;
  line-height: 1.3;
}
.tour-text {
  margin: 0; padding: 8px 16px 12px;
  color: #94a3b8; line-height: 1.55; font-size: 12.5px;
}
.tour-text strong { color: #cbd5e1; }
.tour-text code { background: rgba(255,255,255,0.08); border-radius: 3px; padding: 1px 5px; font-size: 11px; }
.tour-progress {
  height: 3px;
  background: rgba(255,255,255,0.08);
  border-radius: 2px;
  margin: 0 16px 6px;
  overflow: hidden;
}
.tour-progress-fill {
  height: 100%;
  background: #3b82f6;
  border-radius: 2px;
  transition: width 0.35s ease;
}
.tour-step-count {
  text-align: center;
  font-size: 10px;
  color: rgba(255,255,255,0.35);
  letter-spacing: 0.5px;
  padding-bottom: 8px;
}
/* Legacy dots kept for backwards compat */
.tour-dots { display: flex; gap: 5px; justify-content: center; padding: 0 16px 12px; }
.tour-dot { width: 6px; height: 6px; border-radius: 50%; background: rgba(255,255,255,0.15); transition: background 0.2s, transform 0.2s; }
.tour-dot.active { background: #3b82f6; transform: scale(1.3); }
.tour-nav {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px;
  border-top: 1px solid rgba(255,255,255,0.06);
  background: rgba(255,255,255,0.02);
}
.tour-btn-pri {
  background: #2563eb; color: #fff;
  border: none; border-radius: 7px;
  padding: 7px 14px; cursor: pointer;
  font-weight: 600; font-size: 12px;
  transition: background 0.12s;
  white-space: nowrap;
}
.tour-btn-pri:hover { background: #1d4ed8; }
.tour-btn-sec {
  background: rgba(255,255,255,0.07); color: #94a3b8;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 7px; padding: 7px 12px;
  cursor: pointer; font-size: 12px;
  transition: background 0.12s;
  white-space: nowrap;
}
.tour-btn-sec:hover { background: rgba(255,255,255,0.12); color: #e2e8f0; }
.tour-btn-auto {
  background: rgba(255,255,255,0.06); color: #64748b;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 7px; padding: 7px 10px;
  cursor: pointer; font-size: 11px;
  transition: background 0.12s, color 0.12s;
  white-space: nowrap;
}
.tour-btn-auto:hover { background: rgba(255,255,255,0.1); color: #94a3b8; }
.tour-btn-auto.on { background: rgba(59,130,246,0.15); color: #60a5fa; border-color: rgba(59,130,246,0.3); }

/* ── Projects modal ─────────────────────────────────────────────────────────── */
/* Current project name label in header */
.proj-cur-name {
  font-size: 11px;
  color: var(--text-dim);
  max-width: 140px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-left: -2px;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.07);
  cursor: pointer;
  transition: color 0.3s, background 0.2s;
  align-self: center;
}
.proj-cur-name:hover { color: var(--text); background: rgba(255,255,255,0.09); }

/* Project list rows */
.proj-row { display:flex; justify-content:space-between; align-items:center; padding:10px 8px; border-radius:6px; margin-bottom:4px; }
.proj-row:hover, .proj-row-active { background:var(--input-bg); }
.proj-name { font-weight:600; font-size:13px; color:var(--text); }
.proj-date { font-size:11px; color:var(--text-dim); margin-top:2px; }
.proj-actions { display:flex; gap:6px; flex-shrink:0; }

.bm-panel { }

/* ── Demo Scenes Modal ──────────────────────────────────────────────────────── */
.demo-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(4px);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.demo-modal {
  background: var(--panel-bg, #141820);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 14px;
  padding: 28px;
  width: 100%;
  max-width: 940px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 24px 80px rgba(0,0,0,0.7);
}

.demo-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 24px;
}

.demo-modal-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text, #e8eaf0);
  margin: 0 0 4px;
}

.demo-modal-sub {
  font-size: 12px;
  color: var(--text-dim, #7a8090);
  margin: 0;
}

.demo-modal-close {
  background: none;
  border: none;
  color: var(--text-dim, #7a8090);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  padding: 0 4px;
  flex-shrink: 0;
}
.demo-modal-close:hover { color: var(--text, #e8eaf0); }

.demo-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.demo-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.demo-card:hover {
  border-color: rgba(78,142,255,0.5);
  box-shadow: 0 0 0 1px rgba(78,142,255,0.2), 0 8px 24px rgba(0,0,0,0.4);
}

.demo-thumb {
  width: 100%;
  aspect-ratio: 2 / 1;
  background: #0a0a14;
  overflow: hidden;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.demo-thumb svg {
  width: 100%;
  height: 100%;
}

.demo-info {
  padding: 14px 14px 10px;
  flex: 1;
}

.demo-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text, #e8eaf0);
  margin-bottom: 6px;
}

.demo-desc {
  font-size: 11.5px;
  color: var(--text-dim, #7a8090);
  line-height: 1.5;
  margin-bottom: 10px;
}

.demo-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.demo-tag {
  font-size: 10px;
  background: rgba(78,142,255,0.12);
  color: rgba(78,142,255,0.9);
  border: 1px solid rgba(78,142,255,0.2);
  border-radius: 4px;
  padding: 2px 6px;
}

.demo-load-btn {
  margin: 0 14px 14px;
  width: calc(100% - 28px);
}

/* ── Custom Product Modal ────────────────────────────────────────────────────── */
.cp-section-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim, #7a8090);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding-bottom: 5px;
  margin-bottom: -4px;
}

.cp-row {
  display: flex;
  gap: 12px;
}
.cp-row .form-group {
  flex: 1;
  min-width: 0;
}

.cp-saved-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 10px;
  border-radius: 6px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  margin-bottom: 6px;
}
.cp-saved-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text, #e8eaf0);
}
.cp-saved-meta {
  font-size: 11px;
  color: var(--text-dim, #7a8090);
  margin-top: 2px;
}

/* ── Camera Inspector ──────────────────────────────────────────────────────── */
.cam-fov-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 4px;
}
.cam-fov-slider {
  flex: 1;
  accent-color: var(--accent, #4a8fff);
  height: 4px;
}
.cam-fov-hint {
  font-size: 10px;
  color: var(--text-muted, #606080);
  white-space: nowrap;
}
.insp-xyz-row {
  display: flex;
  gap: 6px;
  margin-top: 4px;
}
.insp-xyz-row label {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 10px;
  color: var(--text-dim, #a0a0c8);
  flex: 1;
}
.insp-xyz {
  width: 100%;
}
.cam-action-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 6px;
}
.cam-action-row .btn {
  flex: 1;
  min-width: 0;
  text-align: center;
}

/* ── Camera View Exit Button (canvas overlay) ─────────────────────────────── */
.cam-view-exit-btn {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(20, 10, 50, 0.88);
  color: #88ccff;
  border: 1px solid rgba(136, 180, 255, 0.4);
  border-radius: 20px;
  padding: 6px 18px;
  font-size: 12px;
  cursor: pointer;
  z-index: 20;
  white-space: nowrap;
  backdrop-filter: blur(4px);
}
.cam-view-exit-btn:hover {
  background: rgba(40, 20, 80, 0.95);
  color: #aaddff;
}

/* ── Walkthrough Modal ─────────────────────────────────────────────────────── */
.wt-modal {
  max-width: 640px;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
}
.wt-body {
  flex: 1;
  overflow-y: auto;
  padding: 0 4px 4px;
}
.wt-section-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-dim, #a0a0c8);
  text-transform: uppercase;
  margin: 0 0 8px;
}
.wt-shot-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}
.wt-shot-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 8px;
  padding: 8px 10px;
}
.wt-shot-order {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
}
.wt-order-btn {
  background: none;
  border: none;
  color: var(--text-dim, #a0a0c8);
  font-size: 9px;
  cursor: pointer;
  padding: 1px 4px;
  border-radius: 3px;
  line-height: 1;
}
.wt-order-btn:hover:not(:disabled) { background: rgba(255,255,255,0.1); }
.wt-order-btn:disabled { opacity: 0.25; cursor: default; }
.wt-shot-num {
  font-size: 11px;
  color: var(--text-muted, #606080);
  font-weight: 700;
  padding: 1px 0;
}
.wt-shot-info {
  flex: 1;
  min-width: 0;
}
.wt-shot-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text, #e8eaf0);
  margin-bottom: 6px;
}
.wt-shot-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.wt-ctrl-label {
  font-size: 11px;
  color: var(--text-dim, #a0a0c8);
  display: flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}
.wt-trans-dur.hidden { display: none; }
.wt-shot-del {
  background: none;
  border: none;
  color: var(--text-muted, #606080);
  font-size: 16px;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
  align-self: flex-start;
  margin-top: 2px;
}
.wt-shot-del:hover { color: var(--danger, #e05050); }
.wt-settings-grid {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}
.wt-set-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.wt-set-label {
  font-size: 12px;
  color: var(--text-dim, #a0a0c8);
  white-space: nowrap;
}
.wt-hint {
  font-size: 11px;
  color: var(--text-muted, #606080);
  margin: 0 0 8px;
  line-height: 1.5;
}
.wt-hint code {
  background: rgba(255,255,255,0.07);
  border-radius: 3px;
  padding: 1px 4px;
  font-size: 10px;
}
.wt-hint strong { color: var(--text-dim, #a0a0c8); }
.wt-progress-track {
  height: 6px;
  background: rgba(255,255,255,0.06);
  border-radius: 3px;
  overflow: hidden;
}
.wt-progress-fill {
  height: 100%;
  background: var(--accent, #4a8fff);
  border-radius: 3px;
  transition: width 0.15s;
}
.wt-footer {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  padding: 14px 0 0;
  border-top: 1px solid rgba(255,255,255,0.07);
  flex-shrink: 0;
}

/* ── Screen name pulse reminder ─────────────────────────────────────────── */
@keyframes name-pulse {
  0%, 100% { box-shadow: 0 0 0 0 transparent; }
  50% { box-shadow: 0 0 0 3px #4e8eff; background: rgba(78,142,255,0.12); }
}
.name-pulse {
  animation: name-pulse 0.6s ease 2;
  border-color: #4e8eff !important;
}