/* ==========================================================================
   FUSION DEVELOPERS — 3D CONFIGURATOR DESIGN SYSTEM
   Standard: Master Brand Book v1.0
   Tokens: Obsidian Black #080B11 | Titanium Gold #C5A059 | Structural Silver #E2E8F0
   Zero External Frameworks — Pure Modular CSS
   ========================================================================== */

/* --------------------------------------------------------------------------
   01. Custom Properties & Architectural Tokens
   -------------------------------------------------------------------------- */
:root {
  /* Brand Palette */
  --fd-navy: #080B11;          /* Obsidian Black Canvas Backdrop */
  --fd-surface: #0E131E;       /* Dark Basalt / Slate Drawer Surface */
  --fd-surface-card: #141A28;  /* Architectural Spec Plate Surface */
  --fd-surface-trans: rgba(14, 19, 30, 0.88);
  --fd-gold: #C5A059;          /* Brushed Imperial Titanium Gold */
  --fd-gold-light: #EED59B;    /* Light PVD Champagne Gold */
  --fd-gold-deep: #9E7832;     /* Deep Bronze Arc */
  --fd-ink: #E2E8F0;           /* Structural Steel Silver */
  --fd-ink-soft: #94A3B8;      /* Mountain Fog Slate */
  --fd-muted: #64748B;         /* Muted Technical Gray */
  --fd-border: rgba(197, 160, 89, 0.22); /* Gold Hairline */
  --fd-border-strong: rgba(197, 160, 89, 0.45);
  --fd-border-glow: rgba(197, 160, 89, 0.6);

  /* Typography */
  --font-display: "Space Grotesk", "Cinzel", serif;
  --font-ui: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  /* Glassmorphism Primitives */
  --glass-blur: 18px;
  --glass-shadow: 0 24px 60px -20px rgba(0, 0, 0, 0.85);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* --------------------------------------------------------------------------
   02. Global Layout & Viewport Shell
   -------------------------------------------------------------------------- */
html, body.configurator-body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  background-color: var(--fd-navy);
  color: var(--fd-ink);
  font-family: var(--font-ui);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Full Stage Viewport Host */
.configurator-app {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background: var(--fd-navy);
}

/* 3D WebGL Canvas Viewport */
.viewport-container {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 10;
}

.webgl-canvas {
  width: 100%;
  height: 100%;
  display: block;
  outline: none;
}

/* Canvas Loader */
.canvas-loader {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(8, 11, 17, 0.95);
  z-index: 100;
  transition: opacity 0.5s var(--ease), visibility 0.5s;
}

.canvas-loader.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-spinner {
  width: 44px;
  height: 44px;
  border: 2px solid rgba(197, 160, 89, 0.15);
  border-top-color: var(--fd-gold);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-bottom: 1.2rem;
}

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

.loader-text {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.18em;
  color: var(--fd-gold);
  margin: 0;
}

/* Viewport Architectural Watermark & CAD Compass */
.viewport-watermark {
  position: absolute;
  bottom: 1.5rem;
  left: 1.5rem;
  z-index: 25;
  display: flex;
  align-items: center;
  gap: 1.2rem;
  pointer-events: none;
  opacity: 0.65;
}

.watermark-cad {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--fd-ink-soft);
}

.compass-rose {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.compass-n {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--fd-gold);
  font-weight: 700;
}

.compass-axis {
  width: 1px;
  height: 14px;
  background: var(--fd-gold);
  margin-top: 2px;
}

/* --------------------------------------------------------------------------
   03. Real-Time Telemetry HUD Overlay
   -------------------------------------------------------------------------- */
.hud-overlay {
  position: absolute;
  top: 5.5rem;
  left: 1.5rem;
  right: calc(420px + 3rem);
  z-index: 30;
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  pointer-events: none;
}

.hud-pill {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.95rem;
  background: var(--fd-surface-trans);
  border: 1px solid var(--fd-border);
  border-radius: var(--radius-sm);
  backdrop-filter: blur(var(--glass-blur)) saturate(140%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(140%);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.45);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  transition: border-color 0.25s, transform 0.2s;
}

.hud-pill:hover {
  border-color: var(--fd-border-strong);
  transform: translateY(-1px);
}

.hud-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #25D366;
  box-shadow: 0 0 8px #25D366;
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.hud-label {
  color: var(--fd-muted);
  text-transform: uppercase;
  font-size: 0.64rem;
  letter-spacing: 0.12em;
}

.hud-value {
  color: var(--fd-ink);
  font-weight: 500;
}

.font-gold { color: var(--fd-gold) !important; font-weight: 600 !important; }
.font-gold-bold { color: var(--fd-gold) !important; font-weight: 700 !important; }
.font-gold-highlight {
  color: var(--fd-gold-light) !important;
  font-weight: 700 !important;
  text-shadow: 0 0 10px rgba(197, 160, 89, 0.45);
}
.mono-stat { font-family: var(--font-mono) !important; }

/* --------------------------------------------------------------------------
   04. Floating Camera Quick-View Dock
   -------------------------------------------------------------------------- */
.camera-hud-dock {
  position: absolute;
  bottom: 1.5rem;
  right: calc(420px + 3rem);
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.6rem;
  background: var(--fd-surface-trans);
  border: 1px solid var(--fd-border);
  border-radius: var(--radius-sm);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
}

.camera-dock-label {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.1em;
  color: var(--fd-muted);
  padding: 0 0.35rem;
}

.camera-preset-btn {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fd-ink-soft);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 3px;
  padding: 0.38rem 0.75rem;
  cursor: pointer;
  transition: all 0.25s var(--ease);
}

.camera-preset-btn:hover {
  color: var(--fd-ink);
  background: rgba(255, 255, 255, 0.06);
}

.camera-preset-btn.is-active {
  color: #080B11 !important;
  background: var(--fd-gold) !important;
  font-weight: 600;
  box-shadow: 0 2px 10px rgba(197, 160, 89, 0.4);
}

/* --------------------------------------------------------------------------
   05. Floating Glass Control Drawer
   -------------------------------------------------------------------------- */
.control-drawer {
  position: absolute;
  top: 5.5rem;
  right: 1.5rem;
  bottom: 1.5rem;
  width: 420px;
  z-index: 50;
  display: flex;
  flex-direction: column;
  background: var(--fd-surface-trans);
  border: 1px solid var(--fd-border);
  border-radius: var(--radius-md);
  backdrop-filter: blur(var(--glass-blur)) saturate(140%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(140%);
  box-shadow: var(--glass-shadow);
  overflow: hidden;
  transition: transform 0.4s var(--ease), width 0.4s var(--ease);
}

/* Drawer Header */
.drawer-header {
  padding: 1.2rem 1.4rem 1rem;
  border-bottom: 1px solid var(--fd-border);
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  background: rgba(14, 19, 30, 0.95);
}

.drawer-title-block {
  display: flex;
  flex-direction: column;
}

.drawer-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.12em;
  color: var(--fd-ink);
  margin: 0;
  font-weight: 700;
}

.drawer-subtitle {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  color: var(--fd-gold);
  margin-top: 0.2rem;
}

.drawer-top-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
}

/* Unit and Currency Toggles */
.unit-toggle, .currency-toggle {
  display: inline-flex;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--fd-border);
  border-radius: 4px;
  padding: 2px;
}

.unit-btn, .currency-btn {
  background: transparent;
  border: none;
  color: var(--fd-ink-soft);
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.08em;
  padding: 0.3rem 0.55rem;
  cursor: pointer;
  border-radius: 3px;
  transition: all 0.2s var(--ease);
}

.unit-btn:hover, .currency-btn:hover {
  color: var(--fd-ink);
}

.unit-btn.is-active, .currency-btn.is-active {
  background: var(--fd-gold);
  color: #080B11;
  font-weight: 700;
}

.btn-toggle-drawer {
  display: none;
  background: transparent;
  border: 1px solid var(--fd-border);
  color: var(--fd-gold);
  padding: 0.35rem;
  border-radius: 4px;
  cursor: pointer;
}

/* Scrollable Drawer Content */
.drawer-content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 1.2rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
}

/* Scrollbar Customization */
.drawer-content::-webkit-scrollbar {
  width: 5px;
}
.drawer-content::-webkit-scrollbar-track {
  background: rgba(8, 11, 17, 0.4);
}
.drawer-content::-webkit-scrollbar-thumb {
  background: var(--fd-border-strong);
  border-radius: 3px;
}

/* Drawer Sections */
.drawer-section {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  border-bottom: 1px solid rgba(197, 160, 89, 0.12);
  padding-bottom: 1.4rem;
}

.drawer-section:last-child {
  border-bottom: none;
  padding-bottom: 0.5rem;
}

.section-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.section-num {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  color: var(--fd-gold);
  padding: 2px 5px;
  border: 1px solid var(--fd-border);
  border-radius: 2px;
}

.section-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--fd-ink);
  text-transform: uppercase;
  margin: 0;
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   06. Typology Selection Grid
   -------------------------------------------------------------------------- */
.typology-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem;
}

.typology-card {
  display: flex;
  flex-direction: column;
  text-align: left;
  background: rgba(20, 26, 40, 0.65);
  border: 1px solid var(--fd-border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.8rem;
  cursor: pointer;
  transition: all 0.25s var(--ease);
}

.typology-card:hover {
  background: rgba(20, 26, 40, 0.95);
  border-color: var(--fd-border-strong);
  transform: translateY(-2px);
}

.typology-card.is-active {
  background: rgba(197, 160, 89, 0.12);
  border-color: var(--fd-gold);
  box-shadow: 0 0 16px rgba(197, 160, 89, 0.25);
}

.typology-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.35rem;
}

.typology-badge {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  color: var(--fd-gold);
  background: rgba(197, 160, 89, 0.15);
  padding: 1px 4px;
  border-radius: 2px;
}

.typology-name {
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--fd-ink);
}

.typology-card.is-active .typology-name {
  color: var(--fd-gold-light);
}

.typology-desc {
  font-size: 0.68rem;
  line-height: 1.4;
  color: var(--fd-ink-soft);
  margin: 0;
}

/* --------------------------------------------------------------------------
   07. Custom Range Sliders
   -------------------------------------------------------------------------- */
.slider-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 0.5rem;
}

.slider-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.slider-label {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  color: var(--fd-ink-soft);
  text-transform: uppercase;
}

.slider-val {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--fd-gold);
  font-weight: 600;
}

.slider-track-wrap {
  width: 100%;
  display: flex;
  align-items: center;
}

.range-slider,
#sliderWidth,
#sliderLength,
#sliderHeight,
#sliderPitch,
#sliderBaySpacing,
#slider-width,
#slider-length,
#slider-height,
#slider-pitch,
#slider-bay {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  background: rgba(226, 232, 240, 0.12);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
  margin: 6px 0;
  transition: background 0.2s;
}

.range-slider:hover,
#sliderWidth:hover,
#sliderLength:hover,
#sliderHeight:hover,
#sliderPitch:hover,
#sliderBaySpacing:hover {
  background: rgba(226, 232, 240, 0.2);
}

/* WebKit Slider Thumb */
.range-slider::-webkit-slider-thumb,
#sliderWidth::-webkit-slider-thumb,
#sliderLength::-webkit-slider-thumb,
#sliderHeight::-webkit-slider-thumb,
#sliderPitch::-webkit-slider-thumb,
#sliderBaySpacing::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--fd-gold);
  cursor: pointer;
  border: 2px solid #080B11;
  box-shadow: 0 0 10px rgba(197, 160, 89, 0.65);
  transition: transform 0.15s, box-shadow 0.15s;
}

.range-slider::-webkit-slider-thumb:hover,
#sliderWidth::-webkit-slider-thumb:hover,
#sliderLength::-webkit-slider-thumb:hover,
#sliderHeight::-webkit-slider-thumb:hover,
#sliderPitch::-webkit-slider-thumb:hover,
#sliderBaySpacing::-webkit-slider-thumb:hover {
  transform: scale(1.25);
  box-shadow: 0 0 14px rgba(197, 160, 89, 0.95);
}

/* Firefox Slider Thumb */
.range-slider::-moz-range-thumb,
#sliderWidth::-moz-range-thumb,
#sliderLength::-moz-range-thumb,
#sliderHeight::-moz-range-thumb,
#sliderPitch::-moz-range-thumb,
#sliderBaySpacing::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--fd-gold);
  cursor: pointer;
  border: 2px solid #080B11;
  box-shadow: 0 0 10px rgba(197, 160, 89, 0.65);
  transition: transform 0.15s, box-shadow 0.15s;
}

.range-slider::-moz-range-thumb:hover,
#sliderWidth::-moz-range-thumb:hover,
#sliderLength::-moz-range-thumb:hover,
#sliderHeight::-moz-range-thumb:hover,
#sliderPitch::-moz-range-thumb:hover,
#sliderBaySpacing::-moz-range-thumb:hover {
  transform: scale(1.25);
  box-shadow: 0 0 14px rgba(197, 160, 89, 0.95);
}

.slider-bounds {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--fd-muted);
}

/* --------------------------------------------------------------------------
   08. Material & Finish Pills
   -------------------------------------------------------------------------- */
.option-row {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 0.5rem;
}

.option-label {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.1em;
  color: var(--fd-muted);
  text-transform: uppercase;
}

.pill-group {
  display: flex;
  gap: 0.45rem;
}

.pill-btn {
  flex: 1;
  padding: 0.45rem 0.6rem;
  background: rgba(20, 26, 40, 0.65);
  border: 1px solid var(--fd-border);
  border-radius: var(--radius-sm);
  color: var(--fd-ink-soft);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  cursor: pointer;
  transition: all 0.25s var(--ease);
  text-align: center;
}

.pill-btn:hover {
  color: var(--fd-ink);
  border-color: var(--fd-border-strong);
}

.pill-btn.is-active,
.pill-btn.active {
  background: rgba(197, 160, 89, 0.15);
  border-color: var(--fd-gold);
  color: var(--fd-gold-light);
  font-weight: 600;
}

/* Toggles Grid */
.toggles-grid {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-top: 0.4rem;
}

.toggle-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.55rem 0.75rem;
  background: rgba(20, 26, 40, 0.5);
  border: 1px solid var(--fd-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color 0.2s;
}

.toggle-card:hover {
  border-color: var(--fd-border-strong);
}

.toggle-checkbox {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-switch {
  width: 32px;
  height: 18px;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 9px;
  position: relative;
  transition: background 0.25s;
  flex-shrink: 0;
}

.toggle-switch::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--fd-ink);
  transition: transform 0.25s;
}

.toggle-checkbox:checked + .toggle-switch {
  background: var(--fd-gold);
}

.toggle-checkbox:checked + .toggle-switch::after {
  transform: translateX(14px);
  background: #080B11;
}

.toggle-text {
  font-family: var(--font-ui);
  font-size: 0.74rem;
  color: var(--fd-ink);
}

/* --------------------------------------------------------------------------
   09. Titanium PVD Swatches
   -------------------------------------------------------------------------- */
.pvd-swatch-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
}

.pvd-swatch {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 0.65rem;
  background: rgba(20, 26, 40, 0.65);
  border: 1px solid var(--fd-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s var(--ease);
}

.pvd-swatch:hover {
  border-color: var(--fd-border-strong);
}

.pvd-swatch.is-active,
.pvd-swatch.active {
  background: rgba(197, 160, 89, 0.15);
  border-color: var(--fd-gold);
  box-shadow: 0 0 10px rgba(197, 160, 89, 0.2);
}

.pvd-color-circle {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  flex-shrink: 0;
}

.pvd-gold {
  background: radial-gradient(circle at 35% 35%, #FFF0C2 0%, #D4AF37 55%, #8A6818 100%);
}
.pvd-champagne {
  background: radial-gradient(circle at 35% 35%, #FFF7E6 0%, #EED59B 55%, #A6874E 100%);
}
.pvd-rose {
  background: radial-gradient(circle at 35% 35%, #F7D6D0 0%, #D48373 55%, #8C473B 100%);
}
.pvd-black {
  background: radial-gradient(circle at 35% 35%, #4A4D57 0%, #1A1D24 60%, #05070A 100%);
}

.pvd-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--fd-ink);
}

/* --------------------------------------------------------------------------
   10. BOQ Engineering Takeoff Card
   -------------------------------------------------------------------------- */
.boq-takeoff-card {
  background: rgba(14, 19, 30, 0.95);
  border: 1px solid var(--fd-border);
  border-radius: var(--radius-sm);
  padding: 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.boq-metric-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.72rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.boq-metric-label {
  color: var(--fd-ink-soft);
}

.boq-metric-val {
  color: var(--fd-ink);
  font-weight: 500;
}

.boq-grand-total-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 0.5rem;
  margin-top: 0.2rem;
  border-top: 1px solid var(--fd-border);
}

.boq-total-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--fd-gold);
  font-weight: 600;
}

.boq-total-amount {
  font-size: 1.05rem;
}

.boq-disclaimer {
  font-size: 0.62rem;
  line-height: 1.4;
  color: var(--fd-muted);
  margin: 0.3rem 0 0;
}

/* --------------------------------------------------------------------------
   11. Commercial Action Buttons
   -------------------------------------------------------------------------- */
.actions-stack {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.btn-whatsapp-rfq,
#whatsappQuoteBtn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.2rem;
  background: linear-gradient(135deg, #128C7E 0%, #25D366 100%) !important;
  color: #FFFFFF !important;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  font-weight: 700;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(37, 211, 102, 0.4);
  box-shadow: 0 4px 18px rgba(37, 211, 102, 0.35);
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-whatsapp-rfq:hover,
#whatsappQuoteBtn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.55);
}

.btn-export-dossier,
#btnExportDossier {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.8rem 1.2rem;
  background: transparent;
  color: var(--fd-gold);
  border: 1px solid var(--fd-gold);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  font-weight: 600;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.25s var(--ease);
}

.btn-export-dossier:hover,
#btnExportDossier:hover {
  background: var(--fd-gold);
  color: #080B11;
  box-shadow: 0 4px 20px rgba(197, 160, 89, 0.45);
}

.btn-reset-defaults {
  background: transparent;
  border: none;
  color: var(--fd-muted);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  cursor: pointer;
  padding: 0.4rem;
  transition: color 0.2s;
}

.btn-reset-defaults:hover {
  color: var(--fd-ink);
  text-decoration: underline;
}

/* --------------------------------------------------------------------------
   12. Commercial Export Dossier Modal
   -------------------------------------------------------------------------- */
.modal-dossier,
#dossierModal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.5rem;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.35s var(--ease), visibility 0.35s;
}

.modal-dossier.is-open,
#dossierModal.is-open {
  display: flex !important;
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(5, 7, 11, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.dossier-sheet {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 960px;
  max-height: 88vh;
  overflow-y: auto;
  background: var(--fd-surface);
  border: 1px solid var(--fd-border-strong);
  border-radius: var(--radius-md);
  padding: 2.2rem 2.5rem;
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.95);
  color: var(--fd-ink);
}

/* Letterhead Header */
.dossier-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  border-bottom: 2px solid var(--fd-border);
  padding-bottom: 1.2rem;
  margin-bottom: 1.4rem;
}

.dossier-brand-block {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.dossier-logo {
  height: 44px;
  width: auto;
}

.dossier-company {
  font-family: var(--font-display);
  font-size: 1.15rem;
  letter-spacing: 0.12em;
  color: var(--fd-ink);
  margin: 0;
  font-weight: 700;
}

.dossier-subhead {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.16em;
  color: var(--fd-gold);
  margin: 0.2rem 0 0;
}

.dossier-rfq-meta {
  text-align: right;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--fd-ink-soft);
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.rfq-badge {
  color: var(--fd-gold-light);
  font-weight: 700;
}

/* Viewport Render Snapshot Container */
.dossier-snapshot-frame {
  margin: 0 0 1.6rem;
  border: 1px solid var(--fd-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: #080B11;
  text-align: center;
}

#dossier-snapshot-img,
#dossierSnapshotImg {
  width: 100%;
  max-height: 380px;
  object-fit: cover;
  display: block;
}

.dossier-snapshot-caption {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  color: var(--fd-muted);
  padding: 0.45rem;
  background: rgba(14, 19, 30, 0.95);
  border-top: 1px solid var(--fd-border);
}

/* Spec and BOQ Tables */
.dossier-section {
  margin-bottom: 1.6rem;
}

.dossier-sec-title {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  color: var(--fd-gold);
  margin: 0 0 0.6rem;
  text-transform: uppercase;
  border-bottom: 1px solid rgba(197, 160, 89, 0.2);
  padding-bottom: 0.35rem;
}

.dossier-spec-table, .dossier-boq-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.74rem;
}

.dossier-spec-table th, .dossier-spec-table td {
  padding: 0.5rem 0.75rem;
  border: 1px solid rgba(226, 232, 240, 0.1);
}

.dossier-spec-table th {
  background: rgba(255, 255, 255, 0.03);
  color: var(--fd-ink-soft);
  font-family: var(--font-mono);
  font-weight: 500;
  text-align: left;
  width: 25%;
}

.dossier-spec-table td {
  color: var(--fd-ink);
  font-family: var(--font-mono);
}

.dossier-boq-table th {
  background: rgba(197, 160, 89, 0.15);
  color: var(--fd-gold-light);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-align: left;
  padding: 0.65rem 0.6rem;
  border: 1px solid var(--fd-border);
}

.dossier-boq-table td {
  padding: 0.55rem 0.6rem;
  border: 1px solid rgba(226, 232, 240, 0.08);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.dossier-boq-table tfoot td {
  border-top: 2px solid var(--fd-gold);
  padding: 0.85rem 0.6rem;
  background: rgba(14, 19, 30, 0.95);
}

.total-label {
  font-family: var(--font-mono);
  letter-spacing: 0.12em;
  color: var(--fd-gold);
  font-weight: 700;
  text-align: right;
  padding-right: 1.5rem;
}

.total-amount {
  font-size: 1.05rem;
  color: var(--fd-gold-light);
}

.dossier-notes {
  font-size: 0.72rem;
  line-height: 1.6;
  color: var(--fd-ink-soft);
}

/* Signatures */
.dossier-signatures {
  display: flex;
  justify-content: space-between;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.sig-block {
  width: 42%;
  display: flex;
  flex-direction: column;
}

.sig-title {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: var(--fd-ink-soft);
  text-transform: uppercase;
}

.sig-line {
  height: 45px;
  border-bottom: 1px dashed var(--fd-muted);
}

.sig-lbl {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--fd-muted);
  margin-top: 0.35rem;
}

.dossier-modal-toolbar {
  display: flex;
  justify-content: flex-end;
  gap: 0.8rem;
  margin-top: 1.8rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--fd-border);
}

/* --------------------------------------------------------------------------
   13. Responsive Breakpoints
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hud-overlay {
    right: 1.5rem;
    top: 5.2rem;
  }
  .camera-hud-dock {
    right: 1.5rem;
    bottom: calc(55vh + 1rem);
  }
  .control-drawer {
    top: auto;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: 55vh;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.8);
  }
  .btn-toggle-drawer {
    display: inline-block;
  }
  .control-drawer.is-collapsed {
    transform: translateY(calc(100% - 64px));
  }
}

@media (max-width: 768px) {
  .hud-overlay {
    gap: 0.4rem;
  }
  .hud-pill {
    padding: 0.4rem 0.6rem;
    font-size: 0.65rem;
  }
  .typology-grid {
    grid-template-columns: 1fr;
  }
  .dossier-sheet {
    padding: 1.4rem;
  }
  .dossier-header {
    flex-direction: column;
    gap: 0.8rem;
  }
  .dossier-rfq-meta {
    text-align: left;
  }
}