/* ==============================================================================
   INDUSTRIAL DIGITAL TWIN — STYLESHEET (Swiss Style / Clean Modern Industrial Tech)
   ============================================================================== */

:root {
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "SF Pro Display", sans-serif;
  --font-mono: 'JetBrains Mono', SFMono-Regular, Consolas, monospace;

  --transition-fast: 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Light Theme (Swiss Studio & Clean CAD Precision) */
body.theme-light {
  --bg-canvas: #F8F9FB;
  --bg-glass: rgba(255, 255, 255, 0.65);
  --bg-glass-card: rgba(255, 255, 255, 0.85);
  --border-glass: rgba(0, 0, 0, 0.06);
  --border-strong: rgba(0, 0, 0, 0.14);
  --text-primary: #1A1D20;
  --text-secondary: #5A606A;
  --text-muted: #70757E;
  --accent: #0066FF;
  --accent-rgb: 0, 102, 255;
  --accent-glow: rgba(0, 102, 255, 0.2);
  --hotspot-bg: #FFFFFF;
  --shadow-ui: 0 4px 20px -2px rgba(0, 0, 0, 0.05), 0 2px 6px -1px rgba(0, 0, 0, 0.03);
}

/* Dark Theme (Tactical Deep Space CAD Grid) */
body.theme-dark {
  --bg-canvas: #0F1115;
  --bg-glass: rgba(18, 20, 24, 0.65);
  --bg-glass-card: rgba(22, 25, 30, 0.88);
  --border-glass: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.18);
  --text-primary: #F0F2F5;
  --text-secondary: #9AA0A8;
  --text-muted: #6C727D;
  --accent: #2F81F7;
  --accent-rgb: 47, 129, 247;
  --accent-glow: rgba(47, 129, 247, 0.3);
  --hotspot-bg: #16191E;
  --shadow-ui: 0 6px 24px -2px rgba(0, 0, 0, 0.4), 0 2px 8px -1px rgba(0, 0, 0, 0.25);
}

/* Base Reset & Swiss Typography */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  letter-spacing: -0.02em;
}

html, body {
  width: 100%;
  height: 100%;
  height: 100dvh;
  overflow: hidden;
  font-family: var(--font-main);
  color: var(--text-primary);
  touch-action: none;
}

/* 5. Clean Studio Background with Soft Vignette (Relaxing, Eye-Friendly Background) */
body.theme-light {
  background-color: #F4F6F9;
  background-image: radial-gradient(circle at 50% 45%, #FFFFFF 0%, #EAEDF3 100%);
}

body.theme-dark {
  background-color: #0D0F12;
  background-image: radial-gradient(circle at 50% 45%, #181B22 0%, #090B0E 100%);
}

#canvas-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  height: 100dvh;
  z-index: 1;
  touch-action: none;
}

#canvas-container canvas {
  width: 100% !important;
  height: 100% !important;
  touch-action: none;
  display: block;
}

body.mode-editor #canvas-container {
  cursor: crosshair !important;
}

#hotspots-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  height: 100dvh;
  pointer-events: none;
  z-index: 10;
  overflow: hidden;
}

/* ─────────────────────────────────────────────────────────────────────────────
   3. CAD POI MARKERS (Blueprint Micro-Markers & Hairline Callout Line)
   ───────────────────────────────────────────────────────────────────────────── */
.hotspot-point {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: auto;
  cursor: pointer;
  display: flex;
  align-items: center;
  transition: opacity 0.25s ease;
  will-change: transform;
  touch-action: manipulation;
}

.hotspot-point.hidden,
.hotspot-point.hotspot-dormant {
  opacity: 0 !important;
  pointer-events: none !important;
}

.hotspot-point.scrubbing {
  opacity: 0.2 !important;
  pointer-events: none;
}

.hotspot-cad-target {
  position: relative;
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* Outer CAD Thin Ring (18px) */
.hotspot-pin {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: transparent;
  border: 1.5px solid var(--accent);
  opacity: 0.85;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
  box-sizing: border-box;
}

/* Delicate Decaying Pulse Wave */
.hotspot-pin::after {
  content: '';
  position: absolute;
  inset: -1.5px;
  border-radius: 50%;
  border: 1.5px solid var(--accent);
  animation: cad-pulse 2.2s cubic-bezier(0.16, 1, 0.3, 1) infinite;
  pointer-events: none;
}

@keyframes cad-pulse {
  0% {
    transform: scale(1);
    opacity: 0.85;
  }
  70%, 100% {
    transform: scale(2.0);
    opacity: 0;
  }
}

/* Inner Solid White Dot (6px) with Deep Shadow */
.hotspot-center-dot {
  width: 6px;
  height: 6px;
  background: #FFFFFF;
  border-radius: 50%;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);
  z-index: 2;
  transition: transform var(--transition-fast);
}

.hotspot-point:hover .hotspot-pin {
  transform: scale(1.15);
  border-color: #0052CC;
}

.hotspot-point:hover .hotspot-center-dot {
  transform: scale(1.2);
}

body.mode-editor .hotspot-pin {
  border-color: #F59E0B;
}
body.mode-editor .hotspot-pin::after {
  border-color: #F59E0B;
}
body.mode-editor .hotspot-center-dot {
  background: #F59E0B;
}

/* Hairline Leader Line (1px connecting ring to label pill) */
.hotspot-leader-line {
  width: 14px;
  height: 1px;
  background: rgba(0, 102, 255, 0.4);
  flex-shrink: 0;
  transition: width var(--transition-fast), background-color var(--transition-fast);
}

body.theme-dark .hotspot-leader-line {
  background: rgba(47, 129, 247, 0.45);
}

.hotspot-point:hover .hotspot-leader-line {
  background: var(--accent);
  width: 18px;
}

/* Compact CAD Title Badge (padding: 4px 10px, border-radius: 6px) */
.hotspot-label-pill {
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(0, 0, 0, 0.06);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 11.5px;
  font-weight: 500;
  color: #1E2024;
  white-space: nowrap;
  pointer-events: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  transition: transform var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 6px;
}

body.theme-dark .hotspot-label-pill {
  background: rgba(22, 25, 30, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #F0F2F5;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.4);
}

.hotspot-code-badge {
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-weight: 700;
  color: var(--accent);
  background: rgba(var(--accent-rgb), 0.08);
  padding: 1px 4px;
  border-radius: 3px;
  letter-spacing: 0.02em;
}

.hotspot-point:hover .hotspot-label-pill {
  border-color: var(--accent);
  transform: translateX(2px);
  background: rgba(255, 255, 255, 0.95);
}

body.theme-dark .hotspot-point:hover .hotspot-label-pill {
  background: rgba(28, 32, 38, 0.95);
  border-color: var(--accent);
}

/* ─────────────────────────────────────────────────────────────────────────────
   1. HEADER & BRANDING (Swiss Style Glassmorphism Pill)
   ───────────────────────────────────────────────────────────────────────────── */
.app-header {
  position: absolute;
  top: max(16px, env(safe-area-inset-top, 16px));
  left: max(20px, env(safe-area-inset-left, 20px));
  right: max(20px, env(safe-area-inset-right, 20px));
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 20;
  pointer-events: none;
}

.brand-pill {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.05);
  border-radius: 12px;
  padding: 10px 18px;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.brand-pill:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px -2px rgba(0, 0, 0, 0.08);
}

body.theme-dark .brand-pill {
  background: rgba(18, 20, 24, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 6px 24px -2px rgba(0, 0, 0, 0.4);
}

.brand-badge-mono {
  color: #1A1D20;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

body.theme-dark .brand-badge-mono {
  color: #F0F2F5;
}

.brand-divider {
  width: 1px;
  height: 20px;
  background: rgba(0, 0, 0, 0.1);
  flex-shrink: 0;
}

body.theme-dark .brand-divider {
  background: rgba(255, 255, 255, 0.12);
}

.brand-info {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.brand-title {
  font-size: 13px;
  font-weight: 500;
  color: #1A1D20;
  margin: 0;
  line-height: 1.25;
}

body.theme-dark .brand-title {
  color: #FFFFFF;
}

.brand-sub {
  font-size: 11px;
  font-weight: 400;
  color: #70757E;
  line-height: 1.2;
}

body.theme-dark .brand-sub {
  color: #9AA0A8;
}

/* ─────────────────────────────────────────────────────────────────────────────
   2. FLOATING QUICK ACTIONS TOOLBAR (Floating Island)
   ───────────────────────────────────────────────────────────────────────────── */
.quick-actions-toolbar {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.05);
  border-radius: 12px;
  padding: 4px;
  transition: all var(--transition-fast);
}

body.theme-dark .quick-actions-toolbar {
  background: rgba(18, 20, 24, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 6px 24px -2px rgba(0, 0, 0, 0.4);
}

.toolbar-btn {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  padding: 0;
  touch-action: manipulation;
}

.toolbar-btn:hover {
  background: rgba(0, 0, 0, 0.04);
  color: var(--text-primary);
}

body.theme-dark .toolbar-btn:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #FFFFFF;
}

.toolbar-btn.active {
  background: rgba(var(--accent-rgb), 0.12);
  color: var(--accent);
}

.toolbar-btn.flow-btn-locked {
  opacity: 0.38;
  cursor: not-allowed;
  filter: grayscale(0.8);
}

.toolbar-btn.flow-btn-locked:hover {
  background: transparent;
  color: var(--text-secondary);
}

@keyframes button-highlight-pulse {
  0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.7); }
  50% { transform: scale(1.04); box-shadow: 0 0 0 8px rgba(37, 99, 235, 0); }
  100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(37, 99, 235, 0); }
}

.highlight-pulse {
  animation: button-highlight-pulse 0.6s ease-in-out 2 !important;
}

/* Floating Toast Notification */
.floating-toast {
  position: fixed;
  top: 72px;
  left: 50%;
  transform: translateX(-50%) translateY(-10px);
  background: rgba(28, 32, 38, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  color: #FFFFFF;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.15);
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.floating-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toolbar-btn .icon {
  width: 18px;
  height: 18px;
}
  gap: 8px;
  cursor: pointer;
  box-shadow: var(--shadow-ui);
  transition: all var(--transition-fast);
  touch-action: manipulation;
}

.glass-btn:hover {
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.glass-btn.active {
  background: rgba(var(--accent-rgb), 0.16);
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 16px var(--accent-glow);
}

.edit-toggle-btn {
  border-color: rgba(245, 158, 11, 0.3);
}

.edit-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
  transition: background var(--transition-fast);
}

body.mode-editor .edit-indicator {
  background: #10b981;
  box-shadow: 0 0 8px #10b981;
}

body.mode-editor .edit-toggle-btn {
  border-color: #10b981;
  background: var(--bg-glass-card);
}

.icon-btn {
  padding: 8px;
}

.icon {
  width: 18px;
  height: 18px;
}

.icon-sm {
  width: 15px;
  height: 15px;
}

/* ─────────────────────────────────────────────────────────────────────────────
   4. COMMAND DOCK (Floating Island Dock & Precision Micro-Slider)
   ───────────────────────────────────────────────────────────────────────────── */
.app-footer {
  position: absolute;
  bottom: max(20px, env(safe-area-inset-bottom, 20px));
  left: 0;
  width: 100%;
  display: flex;
  justify-content: center;
  z-index: 20;
  pointer-events: none;
  padding: 0 16px;
}

.timeline-controller {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 8px 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 12px 32px -4px rgba(0, 0, 0, 0.08);
  width: auto;
  max-width: 900px;
  transition: all var(--transition-fast);
}

body.theme-dark .timeline-controller {
  background: rgba(18, 20, 24, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 16px 40px -4px rgba(0, 0, 0, 0.45);
}

.ctrl-btn {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  background: rgba(0, 0, 0, 0.04);
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
  touch-action: manipulation;
}

body.theme-dark .ctrl-btn {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.08);
  color: #FFFFFF;
}

.ctrl-btn:hover {
  background: rgba(0, 0, 0, 0.08);
  transform: translateY(-1px);
}

body.theme-dark .ctrl-btn:hover {
  background: rgba(255, 255, 255, 0.12);
}

.ctrl-btn .icon {
  width: 14px;
  height: 14px;
}

.timeline-track-wrap {
  width: 240px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.timeline-labels {
  display: flex;
  justify-content: center;
  align-items: center;
}

.track-indicator {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

body.theme-dark .track-indicator {
  color: #A0A5B0;
}

.slider-container {
  position: relative;
  width: 100%;
  height: 18px;
  display: flex;
  align-items: center;
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  background: rgba(0, 0, 0, 0.08);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
  position: relative;
  z-index: 2;
  touch-action: pan-y;
}

body.theme-dark input[type="range"] {
  background: rgba(255, 255, 255, 0.1);
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #FFFFFF;
  border: 2px solid var(--accent);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.16);
  cursor: grab;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

input[type="range"]::-webkit-slider-thumb:active {
  cursor: grabbing;
  transform: scale(1.2);
  box-shadow: 0 0 10px rgba(var(--accent-rgb), 0.4);
}

.slider-fill {
  position: absolute;
  left: 0;
  top: 7px;
  height: 4px;
  background: var(--accent);
  border-radius: 2px;
  width: 0%;
  pointer-events: none;
  z-index: 1;
}

/* Segmented Control for Presets */
.segmented-control {
  background: rgba(0, 0, 0, 0.05);
  padding: 3px;
  border-radius: 10px;
  display: inline-flex;
  gap: 2px;
  flex-shrink: 0;
}

body.theme-dark .segmented-control {
  background: rgba(255, 255, 255, 0.06);
}

.seg-btn {
  border: none;
  background: transparent;
  padding: 5px 12px;
  font-family: var(--font-sans);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: -0.01em;
  border-radius: 7px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  touch-action: manipulation;
}

.seg-btn:hover {
  color: var(--text-primary);
}

.seg-btn.active {
  background: #FFFFFF;
  color: #1A1D20;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
  font-weight: 600;
}

body.theme-dark .seg-btn.active {
  background: #252A32;
  color: #FFFFFF;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.35);
}

.controls-actions-group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

/* Mechanism Simulation Button with Accent Pulse Dot */
.work-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 12px;
  border-radius: 10px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  background: rgba(0, 0, 0, 0.03);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: all var(--transition-fast);
  touch-action: manipulation;
}

body.theme-dark .work-toggle-btn {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.08);
}

.work-toggle-btn:hover {
  background: rgba(0, 0, 0, 0.06);
  transform: translateY(-1px);
}

body.theme-dark .work-toggle-btn:hover {
  background: rgba(255, 255, 255, 0.08);
}

.work-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #8B949E;
  transition: all 0.25s ease;
}

.gear-spin-icon {
  width: 15px;
  height: 15px;
  transition: transform 0.3s ease;
}

.work-toggle-btn.active {
  background: rgba(16, 185, 129, 0.1);
  color: #10B981;
  border-color: rgba(16, 185, 129, 0.35);
}

body.theme-dark .work-toggle-btn.active {
  background: rgba(16, 185, 129, 0.16);
  color: #34D399;
  border-color: rgba(16, 185, 129, 0.5);
}

.work-toggle-btn.active .work-status-dot {
  background: #10B981;
  box-shadow: 0 0 6px #10B981;
}

.work-toggle-btn.active .gear-spin-icon {
  animation: gear-spin-anim 2.5s linear infinite;
}

@keyframes gear-spin-anim {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ─────────────────────────────────────────────────────────────────────────────
   FOCUS & INSPECT SPECS CARD (DESKTOP + MOBILE BOTTOM SHEET)
   ───────────────────────────────────────────────────────────────────────────── */
.specs-card {
  position: absolute;
  top: 90px;
  right: 28px;
  width: 380px;
  background: var(--bg-glass-card);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  box-shadow: var(--shadow-ui);
  padding: 22px;
  z-index: 30;
  transition: transform var(--transition-smooth), opacity var(--transition-smooth);
}

.bottom-sheet-handle {
  display: none;
}

.specs-card.hidden {
  opacity: 0;
  transform: translateX(40px) scale(0.95);
  pointer-events: none;
}

.specs-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 14px;
}

.spec-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  background: rgba(var(--accent-rgb), 0.12);
  padding: 3px 8px;
  border-radius: 6px;
  display: inline-block;
  margin-bottom: 6px;
}

.specs-header h3 {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.icon-btn-close {
  background: none;
  border: none;
  font-size: 24px;
  line-height: 1;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
  touch-action: manipulation;
}

.spec-desc {
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-secondary);
  margin-bottom: 18px;
}

.specs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 18px;
}

.spec-stat {
  background: rgba(var(--accent-rgb), 0.04);
  border: 1px solid var(--border-glass);
  padding: 10px;
  border-radius: 10px;
}

.stat-label {
  display: block;
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.stat-value {
  display: block;
  font-size: 13px;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-primary);
}

.specs-footer {
  border-top: 1px solid var(--border-glass);
  padding-top: 14px;
}

.specs-action-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px;
  border-radius: 10px;
  border: 1px solid var(--border-glass);
  background: var(--bg-glass);
  color: var(--text-primary);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  touch-action: manipulation;
}

.specs-action-btn:hover {
  background: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

/* ─────────────────────────────────────────────────────────────────────────────
   ADMIN PANEL TABS & MECHANICS CARDS
   ───────────────────────────────────────────────────────────────────────────── */
.admin-panel {
  position: absolute;
  top: 90px;
  left: 28px;
  width: 400px;
  background: var(--bg-glass-card);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  box-shadow: var(--shadow-ui);
  padding: 20px;
  z-index: 30;
  transition: transform var(--transition-smooth), opacity var(--transition-smooth);
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-height: calc(100vh - 160px);
  overflow-y: auto;
}

.admin-panel.hidden {
  opacity: 0;
  transform: translateX(-40px) scale(0.95);
  pointer-events: none;
}

.admin-header h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 2px;
}

.admin-hint {
  font-size: 11px;
  color: #10b981;
  font-weight: 600;
}

.admin-tabs {
  display: flex;
  gap: 6px;
  background: rgba(0, 0, 0, 0.05);
  padding: 4px;
  border-radius: 10px;
}

.admin-tab-btn {
  flex: 1;
  background: transparent;
  border: none;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 6px 10px;
  border-radius: 7px;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.admin-tab-btn.active {
  background: var(--bg-glass-card);
  color: var(--text-primary);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.tab-pane {
  display: none;
  flex-direction: column;
  gap: 12px;
}

.tab-pane.active {
  display: flex;
}

.admin-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.section-title-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.count-badge {
  background: rgba(var(--accent-rgb), 0.12);
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 10px;
  font-family: var(--font-mono);
}

.admin-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
}

.input-row {
  display: flex;
  gap: 8px;
}

.admin-input, .admin-textarea, .admin-select {
  width: 100%;
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid var(--border-glass);
  background: var(--bg-glass);
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 13px;
  outline: none;
  transition: border-color var(--transition-fast);
}

.admin-input:focus, .admin-textarea:focus, .admin-select:focus {
  border-color: var(--accent);
}

.admin-input.readonly {
  background: rgba(0, 0, 0, 0.04);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.admin-btn, .admin-btn-primary, .admin-btn-secondary, .admin-btn-accent {
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  white-space: nowrap;
}

.admin-btn {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  color: var(--text-primary);
}

.admin-btn-accent {
  background: #f59e0b;
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
}

.admin-btn-accent.active {
  background: #10b981;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
}

.admin-btn-primary {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 4px 14px var(--accent-glow);
}

.admin-btn-primary:hover {
  transform: translateY(-1px);
}

.admin-btn-secondary {
  background: transparent;
  border: 1px solid var(--border-glass);
  color: var(--text-primary);
}

.admin-btn-secondary:hover {
  background: var(--bg-glass);
}

.full-width {
  width: 100%;
}

.admin-hotspots-list, .admin-rotations-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 250px;
  overflow-y: auto;
}

.hotspot-list-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  border-radius: 8px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.hotspot-list-item:hover {
  border-color: var(--accent);
  transform: translateX(2px);
}

.item-left {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.item-label {
  font-size: 12px;
  font-weight: 600;
}

.item-mesh {
  font-size: 10px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.item-actions {
  display: flex;
  gap: 4px;
}

.item-del-btn {
  background: none;
  border: none;
  color: #ef4444;
  cursor: pointer;
  font-size: 16px;
  padding: 2px 6px;
}

/* Rotation Item Card */
.rotation-card-item {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: 10px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.rot-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.rot-mesh-title {
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--text-primary);
  max-width: 280px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.rot-controls-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.axis-selector {
  display: flex;
  gap: 4px;
}

.axis-btn {
  background: rgba(0, 0, 0, 0.05);
  border: 1px solid var(--border-glass);
  border-radius: 6px;
  padding: 4px 8px;
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
}

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

.speed-slider-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 6px;
}

.speed-val-display {
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 700;
  min-width: 38px;
  text-align: right;
}

/* ─────────────────────────────────────────────────────────────────────────────
   MODAL STATS GRID EDITOR
   ───────────────────────────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  transition: opacity var(--transition-fast);
}

.modal-card {
  width: 480px;
  max-width: 90vw;
  background: var(--bg-glass-card);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  box-shadow: var(--shadow-ui);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-height: 90vh;
  overflow-y: auto;
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 10px;
}

.form-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
}

.btn-xs-accent {
  background: rgba(var(--accent-rgb), 0.1);
  color: var(--accent);
  border: none;
  border-radius: 6px;
  padding: 4px 8px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
}

.btn-xs-accent:hover {
  background: var(--accent);
  color: #fff;
}

.stats-editor-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 140px;
  overflow-y: auto;
}

.stat-edit-row {
  display: flex;
  gap: 6px;
  align-items: center;
}

.stat-edit-input {
  flex: 1;
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid var(--border-glass);
  background: var(--bg-glass);
  font-size: 12px;
  color: var(--text-primary);
  outline: none;
}

.stat-del-btn {
  background: none;
  border: none;
  color: #ef4444;
  cursor: pointer;
  font-size: 16px;
  padding: 0 4px;
}

.modal-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 10px;
}

.modal-actions-right {
  display: flex;
  gap: 8px;
  margin-left: auto;
}

.btn-danger {
  background: #ef4444;
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
}

/* Loader */
.loader-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-canvas);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease;
}

.loader-overlay.fade-out {
  opacity: 0;
  pointer-events: none;
}

.loader-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 340px;
  text-align: center;
}

.spinner {
  width: 44px;
  height: 44px;
  border: 3px solid var(--border-glass);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-bottom: 20px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loader-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
}

.loader-desc {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.progress-bar-bg {
  width: 100%;
  height: 6px;
  background: var(--border-glass);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 8px;
}

.progress-bar-fill {
  width: 0%;
  height: 100%;
  background: var(--accent);
  transition: width 0.2s ease;
}

.progress-pct {
  font-size: 12px;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text-muted);
}

.hidden {
  display: none !important;
}

/* ─────────────────────────────────────────────────────────────────────────────
   B2B DIMENSIONS MODULE & MEASUREMENT BADGES
   ───────────────────────────────────────────────────────────────────────────── */
.dimensions-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 12;
}

.dimension-badge {
  position: absolute;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 11px;
  border-radius: 9px;
  background: var(--bg-glass-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1.5px solid var(--accent);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: -0.01em;
  box-shadow: 0 4px 16px var(--accent-glow);
  white-space: nowrap;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.dimension-badge .dim-axis {
  opacity: 0.75;
  font-weight: 500;
}

.dimension-badge .dim-val {
  color: var(--text-primary);
  font-weight: 700;
}

.dimension-badge .dim-unit {
  font-size: 10px;
  opacity: 0.6;
}

/* ─────────────────────────────────────────────────────────────────────────────
   B2B LEAD CAPTURE CTA BUTTON & MODAL
   ───────────────────────────────────────────────────────────────────────────── */
.cta-quote-btn {
  background: #1A1D20;
  color: #FFFFFF;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: -0.01em;
  padding: 8px 14px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid rgba(0, 0, 0, 0.12);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: all var(--transition-fast);
  white-space: nowrap;
  touch-action: manipulation;
}

body.theme-dark .cta-quote-btn {
  background: var(--accent);
  color: #FFFFFF;
  border: 1px solid transparent;
  box-shadow: 0 4px 14px rgba(var(--accent-rgb), 0.35);
}

.cta-quote-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
  background: #000000;
}

body.theme-dark .cta-quote-btn:hover {
  background: #1A6EDB;
  box-shadow: 0 6px 20px rgba(var(--accent-rgb), 0.45);
}
}

.cta-quote-btn:active {
  transform: scale(0.97);
}

.specs-action-btn.accent-action {
  background: rgba(var(--accent-rgb), 0.12);
  color: var(--accent);
  border: 1px solid rgba(var(--accent-rgb), 0.28);
  margin-bottom: 8px;
}

.specs-action-btn.accent-action:hover {
  background: rgba(var(--accent-rgb), 0.2);
  border-color: var(--accent);
}

.quote-modal-card {
  width: 480px;
  max-width: 95vw;
  background: var(--bg-glass-card);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  border: 1px solid var(--border-glass-strong);
  border-radius: 24px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.35);
  padding: 28px;
  position: relative;
  z-index: 100;
  animation: modal-pop 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.quote-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
}

.quote-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  color: var(--accent);
  background: rgba(var(--accent-rgb), 0.12);
  padding: 3px 8px;
  border-radius: 6px;
  letter-spacing: 0.05em;
  display: inline-block;
  margin-bottom: 6px;
}

.quote-title-group h3 {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 4px;
}

.quote-sub {
  font-size: 12px;
  line-height: 1.45;
  color: var(--text-secondary);
}

.quote-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.highlight-input {
  border-color: rgba(var(--accent-rgb), 0.45);
  background: rgba(var(--accent-rgb), 0.04);
  font-weight: 600;
  color: var(--accent);
}

.cta-submit-btn {
  width: 100%;
  height: 44px;
  background: linear-gradient(135deg, #0066ff, #0052cc);
  color: #ffffff;
  font-family: var(--font-main);
  font-size: 14px;
  font-weight: 600;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 6px 20px rgba(0, 102, 255, 0.35);
  transition: all var(--transition-fast);
  margin-top: 8px;
  touch-action: manipulation;
}

.cta-submit-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 26px rgba(0, 102, 255, 0.5);
  filter: brightness(1.06);
}

.cta-submit-btn:active {
  transform: scale(0.98);
}

.quote-success-banner {
  text-align: center;
  padding: 24px 12px;
}

.success-icon-wrap {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px auto;
}

.quote-success-banner h4 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.quote-success-banner p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  max-width: 380px;
  margin: 0 auto;
}

/* ─────────────────────────────────────────────────────────────────────────────
   POWERED BY & WHITE-LABEL BADGE & ABOUT MODAL
   ───────────────────────────────────────────────────────────────────────────── */
.powered-by-container {
  position: absolute;
  bottom: 22px;
  right: 28px;
  z-index: 25;
  pointer-events: auto;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.powered-by-badge {
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
  border-radius: 20px;
  padding: 6px 12px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.25s ease;
  color: #5A606A;
  font-family: var(--font-main);
  font-size: 11px;
  font-weight: 500;
  outline: none;
  user-select: none;
}

.powered-by-badge:hover {
  transform: translateY(-1px);
  color: #1A1D20;
  background: rgba(255, 255, 255, 0.85);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
  border-color: rgba(0, 0, 0, 0.12);
}

body.theme-dark .powered-by-badge {
  background: rgba(18, 20, 24, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #A0A5B0;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

body.theme-dark .powered-by-badge:hover {
  color: #FFFFFF;
  background: rgba(28, 32, 38, 0.85);
  border-color: rgba(255, 255, 255, 0.18);
}

.badge-pulse-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #0066ff;
  box-shadow: 0 0 8px rgba(0, 102, 255, 0.8);
  display: inline-block;
  animation: dot-pulse 2s infinite ease-in-out;
  flex-shrink: 0;
}

@keyframes dot-pulse {
  0%, 100% { transform: scale(1); opacity: 0.95; }
  50% { transform: scale(1.4); opacity: 0.55; }
}

.about-modal-card {
  width: 440px;
  max-width: 95vw;
  background: var(--bg-glass-card);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  border: 1px solid var(--border-glass-strong);
  border-radius: 24px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.35);
  padding: 26px;
  position: relative;
  z-index: 100;
  animation: modal-pop 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.about-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.about-badge-wrap {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(var(--accent-rgb), 0.1);
  padding: 4px 10px;
  border-radius: 20px;
}

.about-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.05em;
}

.about-title {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 6px;
}

.about-desc {
  font-size: 12px;
  line-height: 1.5;
  color: #70757E;
  margin-bottom: 16px;
}

body.theme-dark .about-desc {
  color: #9CA3AF;
}

.about-features-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}

.feature-pill {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.04);
  color: var(--text-secondary);
  border: 1px solid var(--border-glass);
}

body.theme-dark .feature-pill {
  background: rgba(255, 255, 255, 0.05);
}

.about-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.about-btn-primary, .about-btn-secondary {
  height: 40px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-fast);
  cursor: pointer;
  touch-action: manipulation;
}

.about-btn-primary {
  background: linear-gradient(135deg, #0066ff, #0052cc);
  color: #ffffff;
  box-shadow: 0 4px 16px rgba(0, 102, 255, 0.35);
  border: none;
}

.about-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 22px rgba(0, 102, 255, 0.5);
  filter: brightness(1.06);
}

.about-btn-secondary {
  background: var(--bg-glass);
  color: var(--text-primary);
  border: 1px solid var(--border-glass-strong);
}

.about-btn-secondary:hover {
  background: var(--bg-glass-card);
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}

.about-footer-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 11px;
  color: var(--text-muted);
  border-top: 1px solid var(--border-glass);
  padding-top: 14px;
}

.about-dot-sep {
  opacity: 0.4;
}

/* ─────────────────────────────────────────────────────────────────────────────
   MOBILE RESPONSIVE ARCHITECTURE (@media max-width: 768px)
   ───────────────────────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  /* 1. Mobile Header Compact */
  .app-header {
    top: max(12px, env(safe-area-inset-top, 12px));
    left: max(12px, env(safe-area-inset-left, 12px));
    right: max(12px, env(safe-area-inset-right, 12px));
  }
  
  /* 1. Header & Brand on Mobile */
  .brand-pill {
    padding: 6px 12px;
    gap: 8px;
    border-radius: 10px;
  }
  
  .brand-badge-mono {
    font-size: 11px;
  }

  .brand-divider {
    height: 14px;
  }
  
  .brand-title {
    font-size: 12px;
  }
  
  .brand-sub {
    display: none;
  }

  .toolbar-btn {
    width: 32px;
    height: 32px;
  }

  .toolbar-btn .icon {
    width: 16px;
    height: 16px;
  }

  /* Mobile tools collapsed into burger menu: keep only AR button and Burger button */
  .mobile-burger-btn {
    display: inline-flex !important;
  }

  #reset-cam-btn,
  #dimensions-btn,
  #xray-btn,
  #section-btn,
  #flow-btn,
  #theme-btn,
  #fullscreen-btn,
  #info-btn {
    display: none !important;
  }

  .quick-actions-toolbar {
    gap: 4px;
    padding: 3px 5px;
  }

  /* Hide Admin/Editor button completely on mobile */
  #edit-mode-btn,
  .admin-panel {
    display: none !important;
  }

  /* 2. Hotspots on Mobile: Hide text pills and leader lines, show elegant CAD target */
  .hotspot-label-pill,
  .hotspot-leader-line {
    display: none !important;
  }

  .hotspot-cad-target {
    width: 28px;
    height: 28px;
  }

  .hotspot-pin {
    width: 24px;
    height: 24px;
  }

  .hotspot-center-dot {
    width: 7px;
    height: 7px;
  }

  /* 3. Compact Mobile Bottom Dock (92-95% width with safe-area padding) */
  .app-footer {
    bottom: max(12px, env(safe-area-inset-bottom, 12px));
    padding: 0 10px;
  }

  .timeline-controller {
    width: 95%;
    max-width: 95%;
    padding: 8px 12px;
    border-radius: 14px;
    gap: 10px;
  }

  .ctrl-btn {
    width: 34px;
    height: 34px;
    border-radius: 8px;
  }

  /* Hide segmented presets on small mobile to give space to slider */
  .segmented-control {
    display: none !important;
  }

  .work-toggle-btn {
    padding: 8px 10px;
    font-size: 11px;
  }

  .work-toggle-btn span {
    display: none; /* Hide button text, keep only animated spinning gear */
  }

  /* 4. Bottom Sheet Specs Card (slides up smoothly from screen bottom) */
  .bottom-sheet-handle {
    display: block;
    width: 44px;
    height: 5px;
    border-radius: 3px;
    background: currentColor;
    opacity: 0.25;
    margin: -6px auto 14px auto;
  }

  .specs-card {
    top: auto;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    max-height: 70dvh;
    border-radius: 24px 24px 0 0;
    border-left: none;
    border-right: none;
    border-bottom: none;
    box-shadow: 0 -12px 36px rgba(0, 0, 0, 0.28);
    padding: 20px 20px max(24px, env(safe-area-inset-bottom, 24px)) 20px;
    transform: translateY(0);
    overflow-y: auto;
  }

  .specs-card.hidden {
    opacity: 0;
    transform: translateY(100%);
    pointer-events: none;
  }

  /* 5. Mobile Lead Capture CTA & Dimensions */
  .cta-quote-btn {
    padding: 0 12px;
    height: 36px;
    font-size: 11px;
    border-radius: 10px;
  }

  .quote-modal-card {
    padding: 22px 18px;
    border-radius: 20px;
    width: 92vw;
  }

  .quote-title-group h3 {
    font-size: 16px;
  }

  .dimension-badge {
    padding: 3px 8px;
    font-size: 10px;
  }

  /* 6. Mobile Powered By Badge & About Modal */
  .powered-by-container {
    bottom: calc(76px + max(12px, env(safe-area-inset-bottom, 12px)));
    right: 14px;
    z-index: 25;
  }

  .powered-by-badge {
    padding: 5px 10px;
    font-size: 10.5px;
  }

  .about-modal-card {
    width: 92vw;
    padding: 22px 18px;
    border-radius: 20px;
  }

  .about-actions {
    flex-direction: column;
    gap: 10px;
  }
}

/* ── 15. ADMIN X-RAY / GHOST CONFIGURATOR ───────────────────────────────── */
.admin-xray-meshes-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 290px;
  overflow-y: auto;
  padding-right: 2px;
}

.xray-mesh-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: 8px;
  padding: 8px 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.xray-mesh-card:hover {
  border-color: rgba(56, 189, 248, 0.6);
  background: rgba(255, 255, 255, 0.9);
  transform: translateX(2px);
}

.xray-mesh-card.is-shell {
  border-left: 3px solid #0284c7;
}

.xray-mesh-card.is-solid {
  border-left: 3px solid #64748b;
}

.xray-mesh-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  flex: 1;
}

.xray-mesh-name {
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.xray-mesh-badge {
  font-size: 9.5px;
  font-weight: 600;
  padding: 1px 6px;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  width: fit-content;
  letter-spacing: 0.02em;
}

.xray-mesh-badge.shell {
  background: rgba(14, 165, 233, 0.12);
  color: #0284c7;
  border: 1px solid rgba(14, 165, 233, 0.25);
}

.xray-mesh-badge.solid {
  background: rgba(100, 116, 139, 0.12);
  color: #475569;
  border: 1px solid rgba(100, 116, 139, 0.2);
}

.xray-toggle-action-btn {
  background: rgba(0, 0, 0, 0.04);
  border: 1px solid var(--border-glass);
  border-radius: 6px;
  padding: 4px 8px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.xray-toggle-action-btn:hover {
  background: rgba(0, 0, 0, 0.08);
}

.xray-mesh-card.is-shell .xray-toggle-action-btn {
  background: rgba(14, 165, 233, 0.15);
  color: #0284c7;
  border-color: rgba(14, 165, 233, 0.3);
}

.xray-mesh-card.is-solid .xray-toggle-action-btn {
  background: rgba(100, 116, 139, 0.1);
  color: #64748b;
}

.xray-filter-chips {
  display: flex;
  gap: 4px;
  margin-bottom: 8px;
}

.xray-chip {
  background: transparent;
  border: 1px solid var(--border-glass);
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 10.5px;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.xray-chip:hover {
  background: rgba(0, 0, 0, 0.04);
  color: var(--text-primary);
}

.xray-chip.active {
  background: var(--text-primary);
  color: #fff;
  border-color: var(--text-primary);
}

body.theme-dark .xray-mesh-card:hover {
  background: rgba(255, 255, 255, 0.06);
}

body.theme-dark .xray-mesh-badge.shell {
  background: rgba(56, 189, 248, 0.2);
  color: #38bdf8;
  border-color: rgba(56, 189, 248, 0.35);
}

body.theme-dark .xray-mesh-badge.solid {
  background: rgba(148, 163, 184, 0.15);
  color: #94a3b8;
  border-color: rgba(148, 163, 184, 0.25);
}

body.theme-dark .xray-chip.active {
  background: #38bdf8;
  color: #0f172a;
  border-color: #38bdf8;
}

/* ── 16. CAD SECTION / CLIPPING PLANE MODULE ────────────────────────────── */
.section-controller {
  position: fixed;
  top: 76px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(18, 20, 24, 0.78);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
  padding: 10px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 100;
  width: 440px;
  max-width: calc(100vw - 40px);
  transition: opacity var(--transition-smooth), transform var(--transition-smooth);
}

body.theme-light .section-controller {
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}

.section-controller.hidden {
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -18px) scale(0.96);
}

.section-drag-handle {
  display: none;
  width: 36px;
  height: 4px;
  border-radius: 2px;
  background: rgba(150, 150, 150, 0.3);
  margin: 0 auto -2px auto;
}

.section-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.section-title-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.section-badge-mono {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(2, 132, 199, 0.15);
  color: #0284c7;
  border: 1px solid rgba(2, 132, 199, 0.3);
}

body.theme-dark .section-badge-mono {
  background: rgba(56, 189, 248, 0.18);
  color: #38bdf8;
  border-color: rgba(56, 189, 248, 0.35);
}

.section-coord-text {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--text-primary);
}

.section-btn-icon {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  border-radius: 8px;
  width: 32px;
  height: 32px;
  min-width: 32px;
  min-height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.section-btn-icon:hover {
  background: rgba(0, 0, 0, 0.06);
  color: var(--text-primary);
}

body.theme-dark .section-btn-icon:hover {
  background: rgba(255, 255, 255, 0.08);
}

.section-controls-row {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
}

.section-axis-group {
  display: flex;
  background: rgba(0, 0, 0, 0.06);
  border-radius: 8px;
  padding: 2px;
  gap: 2px;
}

body.theme-dark .section-axis-group {
  background: rgba(255, 255, 255, 0.08);
}

.section-axis-btn {
  background: transparent;
  border: none;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--text-secondary);
  padding: 6px 12px;
  min-width: 34px;
  height: 32px;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.section-axis-btn.active {
  background: #0284c7;
  color: #ffffff;
  box-shadow: 0 2px 6px rgba(2, 132, 199, 0.4);
}

#section-invert-btn {
  border: 1px solid var(--border-glass);
  background: rgba(0, 0, 0, 0.04);
}

#section-invert-btn.active {
  background: rgba(2, 132, 199, 0.18);
  color: #0284c7;
  border-color: rgba(2, 132, 199, 0.4);
}

.section-slider-wrap {
  flex: 1;
  display: flex;
  align-items: center;
}

.section-range-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: rgba(0, 0, 0, 0.12);
  border-radius: 3px;
  outline: none;
  touch-action: pan-x;
}

body.theme-dark .section-range-slider {
  background: rgba(255, 255, 255, 0.15);
}

.section-range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #0284c7;
  border: 2px solid #ffffff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.section-range-slider::-moz-range-thumb {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #0284c7;
  border: 2px solid #ffffff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
  cursor: pointer;
}

.section-range-slider::-webkit-slider-thumb:hover,
.section-range-slider::-webkit-slider-thumb:active {
  transform: scale(1.1);
}

/* Mobile responsive bottom dock */
@media (max-width: 768px) {
  .section-controller {
    top: auto;
    bottom: max(16px, env(safe-area-inset-bottom, 16px));
    width: 92%;
    max-width: 440px;
    padding: 12px 14px;
    gap: 8px;
  }

  .section-controller.hidden {
    transform: translate(-50%, 50px) scale(0.96);
  }

  .section-drag-handle {
    display: block;
  }

  .section-axis-btn {
    min-width: 40px;
    min-height: 40px;
    font-size: 13px;
  }

  #section-invert-btn,
  #section-close-btn {
    min-width: 40px;
    min-height: 40px;
  }

  /* Temporarily fold bottom timeline panel and powered by badge when section is active */
  body.mode-section-active .bottom-panel {
    transform: translate(-50%, 160%) !important;
    opacity: 0 !important;
    pointer-events: none !important;
  }

  body.mode-section-active .powered-by-container {
    opacity: 0 !important;
    pointer-events: none !important;
  }
}

/* ── 17. MATERIAL / FLUID FLOW EDITOR STYLING ──────────────────────────── */
.admin-flow-points-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 200px;
  overflow-y: auto;
  margin-top: 6px;
  padding-right: 2px;
}

.flow-point-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: 8px;
  padding: 8px 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.flow-point-card:hover {
  border-color: rgba(56, 189, 248, 0.6);
  background: rgba(255, 255, 255, 0.9);
  transform: translateX(2px);
}

.flow-point-card.active {
  border-color: #0284c7;
  border-left: 3px solid #0284c7;
  background: rgba(2, 132, 199, 0.08);
}

.flow-point-left {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  flex: 1;
}

.flow-point-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.flow-point-coords {
  font-family: var(--font-mono);
  font-size: 9.5px;
  color: var(--text-secondary);
}

.flow-point-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

.flow-point-select-btn {
  background: rgba(0, 0, 0, 0.04);
  border: 1px solid var(--border-glass);
  border-radius: 6px;
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.flow-point-select-btn:hover {
  background: rgba(2, 132, 199, 0.15);
  border-color: #0284c7;
}

.flow-slider-row {
  display: flex;
  flex-direction: column;
}

.admin-range {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  background: rgba(0, 0, 0, 0.12);
  border-radius: 2px;
  outline: none;
}

body.theme-dark .admin-range {
  background: rgba(255, 255, 255, 0.15);
}

.admin-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #0284c7;
  cursor: pointer;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
}

.admin-color-picker {
  -webkit-appearance: none;
  appearance: none;
  border: 1px solid var(--border-glass);
  width: 40px;
  height: 26px;
  border-radius: 6px;
  cursor: pointer;
  background: transparent;
  padding: 0 2px;
}

body.theme-dark .flow-point-card:hover {
  background: rgba(255, 255, 255, 0.06);
}

body.theme-dark .flow-point-card.active {
  border-color: #38bdf8;
  border-left-color: #38bdf8;
  background: rgba(56, 189, 248, 0.12);
}

/* ── ADMIN AUTHENTICATION & SECURITY ── */
.admin-auth-card {
  width: 400px;
  max-width: 92vw;
  background: var(--bg-glass-card);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  border: 1px solid var(--border-glass-strong);
  border-radius: 20px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.35);
  padding: 24px;
  position: relative;
  z-index: 100;
  animation: modal-pop 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.auth-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.auth-shield-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: rgba(37, 99, 235, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.auth-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 2px 0;
  letter-spacing: -0.01em;
}

.auth-subtitle {
  font-size: 11px;
  color: var(--text-secondary);
  margin: 0;
}

.auth-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.auth-password-input {
  padding-right: 42px !important;
}

.auth-eye-btn {
  position: absolute;
  right: 6px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  padding: 6px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s ease;
}

.auth-eye-btn:hover {
  color: var(--text-primary);
}

.auth-error-text {
  font-size: 11px;
  color: #ef4444;
  margin-top: 6px;
  font-weight: 500;
}

.auth-shake {
  animation: auth-shake-anim 0.4s ease;
}

@keyframes auth-shake-anim {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-8px); }
  40%, 80% { transform: translateX(8px); }
}

.icon-btn-lock {
  background: rgba(0, 0, 0, 0.05);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 8px;
  padding: 5px 8px;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.icon-btn-lock:hover {
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.3);
  color: #ef4444;
}

body.theme-dark .icon-btn-lock {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.12);
}

body.theme-dark .icon-btn-lock:hover {
  background: rgba(239, 68, 68, 0.2);
  border-color: rgba(239, 68, 68, 0.4);
}

/* ─────────────────────────────────────────────────────────────────────────────
   AR MODAL DIALOG (SWISS MINIMALISM & 1:1 SCALE STUB)
   ───────────────────────────────────────────────────────────────────────────── */
.ar-modal-card {
  width: 440px;
  max-width: 92vw;
  background: var(--bg-glass-card);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  border: 1px solid var(--border-glass-strong);
  border-radius: 20px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.35);
  padding: 24px;
  position: relative;
  z-index: 10006;
  animation: modal-pop 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

body.theme-dark .ar-modal-card {
  background: rgba(22, 26, 32, 0.9);
  border-color: rgba(255, 255, 255, 0.16);
}

.ar-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.ar-badge-wrap {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(37, 99, 235, 0.1);
  padding: 4px 10px;
  border-radius: 20px;
}

body.theme-dark .ar-badge-wrap {
  background: rgba(56, 189, 248, 0.15);
}

.ar-tag {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.05em;
}

.ar-pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: dot-pulse 2s infinite ease-in-out;
}

.ar-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 6px 0 4px 0;
  letter-spacing: -0.01em;
}

.ar-desc {
  font-size: 11.5px;
  line-height: 1.5;
  color: var(--text-secondary);
  margin-bottom: 14px;
}

.ar-qr-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 14px 0 16px 0;
}

.ar-qr-card {
  background: #FFFFFF;
  padding: 10px;
  border-radius: 14px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.09);
  border: 1px solid rgba(0, 0, 0, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 176px;
  height: 176px;
}

.ar-qr-image {
  width: 156px;
  height: 156px;
  border-radius: 6px;
  display: block;
}

.ar-qr-hint {
  font-size: 11px;
  color: var(--text-secondary);
  margin-top: 8px;
  text-align: center;
}

.ar-features-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border-glass);
}

.ar-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 11.5px;
  line-height: 1.45;
  color: var(--text-secondary);
}

.ar-feature-item strong {
  color: var(--text-primary);
}

.ar-feature-icon {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  background: rgba(var(--accent-rgb), 0.1);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ─────────────────────────────────────────────────────────────────────────────
   MOBILE BURGER MENU & TOOLS DRAWER
   ───────────────────────────────────────────────────────────────────────────── */
.mobile-burger-btn {
  display: none;
}

@media (max-width: 768px) {
  .mobile-burger-btn {
    display: inline-flex !important;
  }
}

.mobile-tools-drawer {
  position: fixed;
  top: max(56px, calc(env(safe-area-inset-top, 12px) + 48px));
  right: max(12px, env(safe-area-inset-right, 12px));
  width: 290px;
  max-width: calc(100vw - 24px);
  background: var(--bg-glass-card);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  border: 1px solid var(--border-glass-strong);
  border-radius: 18px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
  padding: 14px;
  z-index: 9995;
  animation: modal-pop 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

body.theme-dark .mobile-tools-drawer {
  background: rgba(20, 24, 30, 0.94);
  border-color: rgba(255, 255, 255, 0.15);
}

.mobile-tools-drawer.hidden {
  display: none !important;
}

.mobile-tools-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-glass);
}

.mobile-tools-title {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.mobile-tools-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.mobile-tools-grid {
  display: flex;
  flex-direction: column;
  gap: 3px;
  max-height: 62vh;
  overflow-y: auto;
}

.mobile-tool-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-primary);
  cursor: pointer;
  text-align: left;
  width: 100%;
  transition: all 0.15s ease;
}

.mobile-tool-item:hover,
.mobile-tool-item:active {
  background: rgba(var(--accent-rgb), 0.08);
  border-color: rgba(var(--accent-rgb), 0.15);
}

.mobile-tool-item.active {
  background: rgba(var(--accent-rgb), 0.12);
  border-color: var(--accent);
}

.m-tool-icon {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  background: rgba(0, 0, 0, 0.04);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

body.theme-dark .m-tool-icon {
  background: rgba(255, 255, 255, 0.08);
}

.mobile-tool-item.active .m-tool-icon {
  background: var(--accent);
  color: #FFFFFF;
}

.m-tool-label {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.m-tool-name {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
}

.m-tool-sub {
  font-size: 10px;
  color: var(--text-secondary);
}

.m-tool-status {
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.05);
  color: var(--text-secondary);
}

.mobile-tool-item.active .m-tool-status {
  background: rgba(var(--accent-rgb), 0.2);
  color: var(--accent);
}

/* ==========================================================================
   FEATURE TIERS (DYNAMIC FUNCTIONALITY RESTRICTIONS)
   ========================================================================== */

.tier-hidden {
  display: none !important;
}

/* Tier: Catalog (Базовый) */
body.tier-catalog #section-btn,
body.tier-catalog #xray-btn,
body.tier-catalog #btn-ar,
body.tier-catalog #dimensions-btn,
body.tier-catalog #flow-btn,
body.tier-catalog #m-tool-section,
body.tier-catalog #m-tool-xray,
body.tier-catalog #m-tool-ar,
body.tier-catalog #m-tool-dimensions,
body.tier-catalog #m-tool-flow,
body.tier-catalog #section-controller,
body.tier-catalog #ar-modal,
body.tier-catalog .timeline-controller,
body.tier-catalog .app-footer {
  display: none !important;
}

/* Tier: Engineering (Инженерный) */
body.tier-engineering #flow-btn,
body.tier-engineering #btn-ar,
body.tier-engineering #dimensions-btn,
body.tier-engineering #m-tool-flow,
body.tier-engineering #m-tool-ar,
body.tier-engineering #m-tool-dimensions,
body.tier-engineering #ar-modal {
  display: none !important;
}

/* Watermark White-Label Control */
body.tier-catalog #powered-by-container,
body.tier-engineering #powered-by-container {
  display: inline-flex !important;
}

body.tier-sales_pro #powered-by-container {
  display: none !important;
}