.configurator-page {
  min-height: calc(100vh - var(--header-height));
  display: flex;
  flex-direction: column;
}

.configurator-layout {
  flex: 1;
  display: grid;
  grid-template-columns: 380px 1fr;
  min-height: 0;
}

.configurator-sidebar {
  border-right: 1px solid var(--border-dark);
  padding: 0 32px 40px 0;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.configurator-sidebar h1 {
  font-family: var(--font-serif);
  font-size: 28px;
  color: var(--gold);
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.configurator-sidebar .desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 32px;
}

.sidebar-field {
  margin-bottom: 24px;
}

.sidebar-field-label {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.sidebar-field-label img {
  width: 24px;
  height: 24px;
  padding: 4px;
  border: 1px solid var(--border-dark);
}

.sidebar-field-label span {
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--gold);
  text-transform: uppercase;
}

.sidebar-select {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-dark);
  color: var(--text-white);
  font-size: 13px;
  appearance: none;
  background-image: url('../images/PNG/arrow-right.png');
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 10px;
}

.sidebar-toggle-group {
  display: flex;
  gap: 8px;
}

.sidebar-toggle {
  flex: 1;
  padding: 12px;
  border: 1px solid var(--border-dark);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
}

.sidebar-toggle.selected {
  border-color: var(--gold);
  background: rgba(197, 160, 89, 0.08);
}

.sidebar-toggle.selected::after {
  content: '✓';
  position: absolute;
  top: 4px;
  right: 6px;
  font-size: 9px;
  color: var(--gold);
}

.brand-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.brand-option {
  padding: 12px 8px;
  border: 1px solid var(--border-dark);
  font-size: 9px;
  letter-spacing: 0.06em;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
}

.brand-option.selected {
  border-color: var(--gold);
  border-width: 2px;
}

.brand-option.selected::after {
  content: '✓';
  position: absolute;
  top: 2px;
  right: 4px;
  font-size: 8px;
  color: var(--gold);
}

.sidebar-nav-btns {
  margin-top: auto;
  padding-top: 32px;
  display: flex;
  gap: 12px;
}

.sidebar-nav-btns .btn {
  flex: 1;
  padding: 14px 16px;
  font-size: 10px;
}

.sidebar-help {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border-dark);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  color: var(--text-muted);
}

.sidebar-help img { width: 18px; height: 18px; opacity: 0.6; }
.sidebar-help a { color: var(--gold); }

.configurator-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px;
  background: radial-gradient(ellipse at center, #1a1a1a 0%, #000 70%);
  position: relative;
}

.stage-product img {
  max-width: 100%;
  max-height: 420px;
  object-fit: contain;
}

.stage-hints {
  display: flex;
  gap: 24px;
  margin-top: 24px;
  font-size: 11px;
  color: var(--text-muted);
}

.stage-controls {
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.stage-control-btn {
  width: 44px;
  height: 44px;
  border: 1px solid var(--border-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.4);
  transition: all var(--transition);
}

.stage-control-btn:hover {
  border-color: var(--gold);
  background: rgba(197, 160, 89, 0.1);
}

.stage-control-btn img { width: 20px; height: 20px; }

.stage-thumbnails {
  display: flex;
  gap: 12px;
  margin-top: 32px;
}

.stage-thumb {
  width: 80px;
  height: 60px;
  border: 1px solid var(--border-dark);
  overflow: hidden;
  cursor: pointer;
}

.stage-thumb.active { border-color: var(--gold); }
.stage-thumb img { width: 100%; height: 100%; object-fit: cover; }

.selection-card {
  border: 1px solid var(--border-dark);
  padding: 16px;
  margin-bottom: 12px;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  gap: 16px;
  align-items: center;
  position: relative;
}

.selection-card.selected {
  border-color: var(--gold);
  background: rgba(197, 160, 89, 0.06);
}

.selection-card.selected::after {
  content: '✓';
  position: absolute;
  top: 8px;
  right: 10px;
  color: var(--gold);
  font-size: 12px;
}

.selection-card-thumb {
  width: 64px;
  height: 64px;
  flex-shrink: 0;
  overflow: hidden;
}

.selection-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.selection-card-info h4 {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold);
  margin-bottom: 4px;
}

.selection-card-info p {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.5;
}

.color-list-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 16px;
  border: 1px solid var(--border-dark);
  margin-bottom: 8px;
  cursor: pointer;
  transition: all var(--transition);
}

.color-list-item.selected {
  border-color: var(--gold);
}

.color-list-item .swatch {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  flex-shrink: 0;
}

.color-list-item .name {
  flex: 1;
  font-size: 12px;
  letter-spacing: 0.06em;
}

.color-list-item .radio {
  width: 18px;
  height: 18px;
  border: 1px solid var(--border-dark);
  border-radius: 50%;
  position: relative;
}

.color-list-item.selected .radio {
  border-color: var(--gold);
}

.color-list-item.selected .radio::after {
  content: '✓';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  color: var(--gold);
}

.collection-group-title {
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin: 24px 0 12px;
}

.current-selection {
  text-align: center;
  margin-top: 24px;
}

.current-selection .label {
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.current-selection .value {
  font-size: 18px;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.selection-thumbs {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.selection-thumb {
  width: 120px;
  height: 80px;
  border: 1px solid var(--border-dark);
  overflow: hidden;
  cursor: pointer;
}

.selection-thumb.active { border-color: var(--gold); }
.selection-thumb img { width: 100%; height: 100%; object-fit: cover; }

.learn-more-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 16px;
}

.learn-more-link img { width: 14px; height: 14px; opacity: 0.6; }

/* Carbon Weave step */
.carbon-weave-page.configurator-page {
  min-height: auto;
  display: block;
}

.carbon-weave-page .configurator-shell {
  padding-bottom: 48px;
}

.carbon-weave-page .page-subheader {
  margin-bottom: 0;
  border-bottom: none;
  padding-bottom: 0;
}

.carbon-weave-page .configure-breadcrumbs {
  padding: 16px 0;
  margin: 0;
  border: none;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.carbon-weave-page .configurator-layout {
  grid-template-columns: minmax(280px, 340px) 1fr;
  min-height: auto;
  flex: none;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.carbon-weave-page .configurator-sidebar {
  padding: 24px 32px 32px 0;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}

.carbon-weave-page .configurator-sidebar h1 {
  font-size: clamp(24px, 2.4vw, 32px);
  letter-spacing: 0.1em;
  margin-bottom: 0;
}

.carbon-weave-page .sidebar-divider {
  margin: 14px 0 18px;
}

.carbon-weave-page .sidebar-divider::before {
  flex: 0 0 40px;
}

.carbon-weave-page .sidebar-divider::after {
  display: none;
}

.carbon-weave-page .configurator-sidebar .desc {
  font-size: 12px;
  line-height: 1.75;
  margin-bottom: 24px;
  max-width: 300px;
}

.carbon-weave-page .selection-cards {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.carbon-weave-page .selection-card {
  border: 1px solid rgba(255, 255, 255, 0.14);
  padding: 14px 16px;
  margin-bottom: 0;
  background: rgba(255, 255, 255, 0.02);
}

.carbon-weave-page .selection-card.selected {
  border-color: var(--gold);
  background: rgba(197, 160, 89, 0.05);
}

.carbon-weave-page .selection-card.selected::after {
  content: '✓';
  top: 10px;
  right: 10px;
  width: 18px;
  height: 18px;
  border: 1px solid var(--gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 9px;
  line-height: 1;
}

.carbon-weave-page .selection-card-info h4 {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-white);
}

.carbon-weave-page .selection-card.selected .selection-card-info h4 {
  color: var(--gold);
}

.carbon-weave-page .selection-card-thumb {
  width: 72px;
  height: 72px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.carbon-weave-page .learn-more-link {
  margin-top: 20px;
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--text-light);
}

.carbon-weave-page .sidebar-nav-btns {
  padding-top: 28px;
  gap: 10px;
}

.carbon-weave-page .sidebar-btn-prev {
  flex: 1;
  padding: 14px 12px;
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 1px solid rgba(197, 160, 89, 0.5);
  background: transparent;
  color: var(--gold);
  justify-content: center;
}

.carbon-weave-page .sidebar-btn-next {
  flex: 1;
  padding: 14px 12px;
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  justify-content: center;
}

.carbon-weave-page .carbon-stage {
  padding: 28px 40px 24px;
  background: radial-gradient(ellipse 80% 60% at 50% 45%, rgba(40, 40, 40, 0.45) 0%, #000 72%);
  justify-content: flex-start;
  align-items: stretch;
  min-height: 460px;
}

.carbon-weave-page .stage-product {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 280px;
}

.carbon-weave-page .stage-product img {
  max-height: 380px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.5));
}

.carbon-weave-page .stage-view-360 {
  position: absolute;
  right: 32px;
  bottom: 160px;
  top: auto;
  transform: none;
  width: auto;
  min-width: 56px;
  height: auto;
  padding: 12px 10px;
  flex-direction: column;
  gap: 6px;
  border-color: rgba(197, 160, 89, 0.4);
}

.carbon-weave-page .stage-view-360 span {
  font-size: 8px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  line-height: 1.2;
}

.carbon-weave-page .current-selection {
  margin-top: auto;
  padding-top: 8px;
  text-align: center;
}

.carbon-weave-page .current-selection .label {
  font-size: 9px;
  letter-spacing: 0.14em;
  margin-bottom: 6px;
}

.carbon-weave-page .current-selection .value {
  font-size: 16px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-white);
  margin-bottom: 18px;
  font-weight: 500;
}

.carbon-weave-page .selection-thumbs {
  gap: 16px;
  align-items: flex-start;
}

.carbon-weave-page .selection-thumb-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.carbon-weave-page .selection-thumb {
  width: 140px;
  height: 88px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: #111;
  transition: border-color var(--transition), opacity var(--transition);
}

.carbon-weave-page .selection-thumb:not(.active) {
  opacity: 0.55;
}

.carbon-weave-page .selection-thumb.active {
  border-color: var(--gold);
  opacity: 1;
}

.carbon-weave-page .thumb-label {
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.carbon-weave-page .thumb-label.active {
  color: var(--gold);
}

/* Exterior Colour step */
.exterior-colour-page.configurator-page {
  min-height: auto;
  display: block;
}

.exterior-colour-page .configurator-shell {
  padding-bottom: 48px;
}

.exterior-colour-page .page-subheader {
  margin-bottom: 0;
  border-bottom: none;
  padding-bottom: 0;
}

.exterior-colour-page .configure-breadcrumbs {
  padding: 16px 0;
  margin: 0;
  border: none;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.exterior-colour-page .configurator-layout {
  grid-template-columns: minmax(280px, 340px) 1fr;
  min-height: auto;
  flex: none;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.exterior-colour-page .configurator-sidebar {
  padding: 24px 32px 32px 0;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}

.exterior-colour-page .configurator-sidebar h1 {
  font-size: clamp(24px, 2.4vw, 32px);
  letter-spacing: 0.1em;
  margin-bottom: 0;
}

.exterior-colour-page .sidebar-divider {
  margin: 14px 0 18px;
}

.exterior-colour-page .sidebar-divider::before {
  flex: 0 0 40px;
}

.exterior-colour-page .sidebar-divider::after {
  display: none;
}

.exterior-colour-page .configurator-sidebar .desc {
  font-size: 12px;
  line-height: 1.75;
  margin-bottom: 20px;
  max-width: 300px;
}

.exterior-colour-page .colour-collection {
  margin-bottom: 8px;
}

.exterior-colour-page .collection-group-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 20px 0 10px;
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
}

.exterior-colour-page .collection-group-title span {
  white-space: nowrap;
}

.exterior-colour-page .collection-group-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(197, 160, 89, 0.35);
}

.exterior-colour-page .colour-collection:first-of-type .collection-group-title {
  margin-top: 0;
}

.exterior-colour-page .color-list-item {
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 12px 14px;
  margin-bottom: 8px;
  background: rgba(255, 255, 255, 0.02);
  gap: 14px;
}

.exterior-colour-page .color-list-item.selected {
  border-color: var(--gold);
  background: rgba(197, 160, 89, 0.04);
}

.exterior-colour-page .color-list-item .swatch {
  width: 24px;
  height: 24px;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.exterior-colour-page .color-list-item .name {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-white);
}

.exterior-colour-page .color-list-item .radio {
  width: 18px;
  height: 18px;
  border-color: rgba(255, 255, 255, 0.2);
}

.exterior-colour-page .color-list-item.selected .radio {
  border-color: var(--gold);
  background: var(--gold);
}

.exterior-colour-page .color-list-item.selected .radio::after {
  color: #000;
  font-size: 9px;
  font-weight: 700;
}

.exterior-colour-page .sidebar-nav-btns {
  padding-top: 28px;
  gap: 10px;
}

.exterior-colour-page .sidebar-btn-prev {
  flex: 1;
  padding: 14px 12px;
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 1px solid rgba(197, 160, 89, 0.5);
  background: transparent;
  color: var(--gold);
  justify-content: center;
}

.exterior-colour-page .sidebar-btn-next {
  flex: 1;
  padding: 14px 12px;
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  justify-content: center;
}

.exterior-colour-page .colour-stage {
  padding: 28px 40px 24px;
  background: radial-gradient(ellipse 80% 60% at 50% 45%, rgba(40, 40, 40, 0.45) 0%, #000 72%);
  justify-content: flex-start;
  align-items: stretch;
  min-height: 520px;
}

.exterior-colour-page .stage-product {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 300px;
  perspective: 1200px;
  position: relative;
}

.exterior-colour-page .stage-product.is-360 {
  cursor: grab;
}

.exterior-colour-page .stage-product.is-360.is-dragging {
  cursor: grabbing;
}

.exterior-colour-page .stage-product-orbit {
  transform-style: preserve-3d;
  will-change: transform;
}

.exterior-colour-page .stage-product-orbit.is-resetting {
  transition: transform 0.3s ease;
}

.exterior-colour-page .stage-product-orbit.is-spinning-in {
  animation: colourOrbitIntro 0.9s ease-out;
}

@keyframes colourOrbitIntro {
  from { transform: rotateY(-28deg); }
  to { transform: rotateY(0deg); }
}

.exterior-colour-page .stage-product img {
  max-height: 400px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.5));
  user-select: none;
  -webkit-user-drag: none;
  transition: opacity 0.25s ease, filter 0.25s ease;
}

.exterior-colour-page .stage-product.is-open img {
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.5)) brightness(1.05);
}

.exterior-colour-page .stage-orbit-hint {
  margin-top: 14px;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  opacity: 0.85;
}

.exterior-colour-page .stage-side-controls {
  position: absolute;
  right: 32px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 2;
}

.exterior-colour-page .stage-side-controls .stage-control-btn {
  width: auto;
  min-width: 56px;
  height: auto;
  padding: 12px 10px;
  flex-direction: column;
  gap: 6px;
  border-color: rgba(197, 160, 89, 0.4);
  color: var(--gold);
}

.exterior-colour-page .stage-side-controls .stage-control-btn.active {
  border-color: var(--gold);
  background: rgba(197, 160, 89, 0.14);
}

.exterior-colour-page .stage-side-controls .stage-control-btn span {
  font-size: 8px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  line-height: 1.2;
}

.exterior-colour-page .stage-side-controls .stage-control-btn img {
  filter: brightness(0) saturate(100%) invert(72%) sepia(28%) saturate(548%) hue-rotate(2deg) brightness(92%) contrast(88%);
}

.exterior-colour-page .colour-stage-footer {
  margin-top: auto;
  padding-top: 8px;
}

.exterior-colour-page .current-selection {
  text-align: left;
  margin-top: 0;
  margin-bottom: 16px;
}

.exterior-colour-page .current-selection .label {
  font-size: 9px;
  letter-spacing: 0.14em;
  margin-bottom: 6px;
}

.exterior-colour-page .current-selection .value {
  font-size: 16px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-white);
  margin-bottom: 0;
  font-weight: 500;
}

.exterior-colour-page .selection-thumbs {
  gap: 12px;
  align-items: flex-start;
  justify-content: flex-start;
  flex-wrap: wrap;
}

.exterior-colour-page .selection-thumb-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.exterior-colour-page .selection-thumb {
  width: 110px;
  height: 72px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: #111;
  transition: border-color var(--transition), opacity var(--transition);
}

.exterior-colour-page .selection-thumb:not(.active) {
  opacity: 0.55;
}

.exterior-colour-page .selection-thumb.active {
  border-color: var(--gold);
  opacity: 1;
}

.exterior-colour-page .thumb-label {
  font-size: 8px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-align: center;
}

.exterior-colour-page .thumb-label.active {
  color: var(--gold);
}

.exterior-colour-page .colour-disclaimer {
  margin-top: 16px;
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

/* Instrument step */
.instrument-page.configurator-page {
  min-height: auto;
  display: block;
}

.instrument-page .configurator-shell {
  padding-bottom: 48px;
}

.instrument-page .page-subheader {
  margin-bottom: 0;
  border-bottom: none;
  padding-bottom: 0;
}

.instrument-page .configure-breadcrumbs {
  padding: 16px 0;
  margin: 0;
  border: none;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.instrument-page .configurator-layout {
  grid-template-columns: minmax(300px, 360px) 1fr;
  min-height: auto;
  flex: none;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.instrument-page .configurator-sidebar {
  padding: 28px 32px 32px 0;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  gap: 0;
}

.instrument-page .configurator-sidebar h1 {
  font-size: clamp(24px, 2.4vw, 32px);
  letter-spacing: 0.1em;
  margin-bottom: 0;
}

.instrument-page .sidebar-divider {
  margin: 14px 0 18px;
}

.instrument-page .sidebar-divider::before {
  flex: 0 0 40px;
}

.instrument-page .sidebar-divider::after {
  display: none;
}

.instrument-page .configurator-sidebar .desc {
  font-size: 12px;
  line-height: 1.75;
  margin-bottom: 28px;
  max-width: 320px;
}

.instrument-page .sidebar-field {
  margin-bottom: 22px;
}

.instrument-page .sidebar-field-label {
  margin-bottom: 10px;
}

.instrument-page .sidebar-field-label img {
  width: 28px;
  height: 28px;
  padding: 5px;
  border: 1px solid rgba(197, 160, 89, 0.28);
  background: rgba(197, 160, 89, 0.04);
  object-fit: contain;
  filter: brightness(0) saturate(100%) invert(72%) sepia(28%) saturate(548%) hue-rotate(2deg) brightness(92%) contrast(88%);
}

.instrument-page .sidebar-field-label span {
  font-size: 10px;
  letter-spacing: 0.14em;
}

.instrument-page .sidebar-select {
  padding: 13px 40px 13px 16px;
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--text-white);
  font-size: 12px;
  letter-spacing: 0.06em;
  background-image: linear-gradient(45deg, transparent 50%, var(--gold) 50%),
    linear-gradient(135deg, var(--gold) 50%, transparent 50%);
  background-position: calc(100% - 18px) calc(50% - 2px), calc(100% - 12px) calc(50% - 2px);
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  transition: border-color var(--transition), background-color var(--transition);
}

.instrument-page .sidebar-select:hover,
.instrument-page .sidebar-select:focus {
  border-color: rgba(197, 160, 89, 0.55);
  outline: none;
  background-color: rgba(197, 160, 89, 0.05);
}

.instrument-page .sidebar-select option {
  background: #111;
  color: #fff;
}

.instrument-page .sidebar-toggle-group {
  gap: 10px;
}

.instrument-page .sidebar-toggle {
  padding: 13px 12px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.02);
  font-size: 10px;
  letter-spacing: 0.1em;
}

.instrument-page .sidebar-toggle:hover {
  border-color: rgba(197, 160, 89, 0.4);
}

.instrument-page .sidebar-toggle.selected {
  border-color: var(--gold);
  background: rgba(197, 160, 89, 0.08);
  color: var(--gold);
}

.instrument-page .sidebar-toggle.selected::after {
  top: 6px;
  right: 8px;
  width: 16px;
  height: 16px;
  border: 1px solid var(--gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 8px;
  line-height: 1;
}

.instrument-page .brand-grid {
  gap: 8px;
}

.instrument-page .brand-option {
  padding: 12px 6px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.02);
  font-size: 9px;
  letter-spacing: 0.08em;
  color: var(--text-light);
  transition: border-color var(--transition), background var(--transition), color var(--transition);
}

.instrument-page .brand-option:hover {
  border-color: rgba(197, 160, 89, 0.4);
  color: var(--text-white);
}

.instrument-page .brand-option.selected {
  border-color: var(--gold);
  border-width: 1px;
  background: rgba(197, 160, 89, 0.08);
  color: var(--gold);
}

.instrument-page .brand-option.selected::after {
  top: 4px;
  right: 5px;
  width: 14px;
  height: 14px;
  border: 1px solid var(--gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 7px;
  line-height: 1;
}

.instrument-page .sidebar-nav-btns {
  padding-top: 28px;
  gap: 10px;
}

.instrument-page .sidebar-btn-prev {
  flex: 1;
  padding: 14px 12px;
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 1px solid rgba(197, 160, 89, 0.5);
  background: transparent;
  color: var(--gold);
  justify-content: center;
}

.instrument-page .sidebar-btn-next {
  flex: 1;
  padding: 14px 12px;
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  justify-content: center;
}

.instrument-page .sidebar-help {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 11px;
  line-height: 1.5;
}

.instrument-page .instrument-stage {
  position: relative;
  padding: 32px 40px 28px;
  background: radial-gradient(ellipse 80% 60% at 50% 42%, rgba(40, 40, 40, 0.5) 0%, #000 72%);
  justify-content: flex-start;
  align-items: stretch;
  min-height: 520px;
  overflow: hidden;
}

.instrument-page .stage-spotlight {
  position: absolute;
  top: 12%;
  left: 50%;
  transform: translateX(-50%);
  width: 340px;
  height: 340px;
  background: radial-gradient(circle, rgba(197, 160, 89, 0.1) 0%, rgba(197, 160, 89, 0.03) 40%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.instrument-page .stage-platform {
  position: absolute;
  bottom: 130px;
  left: 50%;
  transform: translateX(-50%);
  width: 260px;
  height: 24px;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.02) 45%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.instrument-page .stage-product {
  position: relative;
  z-index: 1;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
}

.instrument-page .stage-product img {
  max-height: 400px;
  width: auto;
  max-width: 92%;
  object-fit: contain;
  filter: drop-shadow(0 28px 48px rgba(0, 0, 0, 0.7));
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.instrument-page .stage-product img.is-switching {
  opacity: 0.35;
  transform: scale(0.98);
}

.instrument-page .stage-hints {
  position: relative;
  z-index: 1;
  margin-top: 8px;
  gap: 28px;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
}

.instrument-page .stage-controls {
  z-index: 2;
  right: 20px;
  gap: 10px;
}

.instrument-page .stage-control-btn {
  width: 46px;
  height: 46px;
  border: 1px solid rgba(197, 160, 89, 0.45);
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(4px);
}

.instrument-page .stage-control-btn:hover {
  border-color: var(--gold);
  background: rgba(197, 160, 89, 0.12);
}

.instrument-page .stage-thumbnails {
  position: relative;
  z-index: 1;
  margin-top: auto;
  padding-top: 24px;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

.instrument-page .stage-thumb {
  width: 76px;
  height: 58px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.35);
  overflow: hidden;
  transition: border-color var(--transition), opacity var(--transition);
}

.instrument-page .stage-thumb:not(.active) {
  opacity: 0.55;
}

.instrument-page .stage-thumb:hover {
  opacity: 1;
  border-color: rgba(197, 160, 89, 0.45);
}

.instrument-page .stage-thumb.active {
  opacity: 1;
  border-color: var(--gold);
}

@media (max-width: 1024px) {
  .instrument-page .configurator-layout { grid-template-columns: 1fr; min-height: auto; }
  .instrument-page .instrument-stage { min-height: 420px; padding: 28px 20px 24px; }
  .instrument-page .stage-platform { bottom: 110px; }
  .instrument-page .stage-controls {
    position: static;
    transform: none;
    flex-direction: row;
    justify-content: center;
    margin-top: 16px;
  }
  .instrument-page .configurator-sidebar {
    padding: 24px 0 28px;
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }
  .carbon-weave-page .configurator-layout { grid-template-columns: 1fr; min-height: auto; }
  .carbon-weave-page .carbon-stage { min-height: 400px; }
  .carbon-weave-page .stage-view-360 { bottom: 24px; right: 16px; }
  .exterior-colour-page .configurator-layout { grid-template-columns: 1fr; min-height: auto; }
  .exterior-colour-page .colour-stage { min-height: 440px; }
  .exterior-colour-page .stage-side-controls {
    position: static;
    transform: none;
    flex-direction: row;
    justify-content: center;
    margin-top: 12px;
  }
  .configurator-layout { grid-template-columns: 1fr; }
  .configurator-sidebar { border-right: none; border-bottom: 1px solid var(--border-dark); }
  .stage-controls { position: static; transform: none; flex-direction: row; margin-top: 16px; }
}

@media (max-width: 768px) {
  .instrument-page .brand-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .instrument-page .stage-thumbnails {
    justify-content: flex-start;
    overflow-x: auto;
    max-width: 100%;
    flex-wrap: nowrap;
    padding-bottom: 4px;
  }

  .exterior-colour-page .selection-thumbs {
    justify-content: center;
  }

  .exterior-colour-page .current-selection {
    text-align: center;
  }

  .exterior-colour-page .colour-disclaimer {
    text-align: center;
  }
}