/* ==========================================================================
   AVIAJET SERVICES - PARTS & BRANDS STYLESHEET (css/parts.css)
   Interactive 3D Parts Showcase, Large Card View Layout, Hotspots, 16 Brand Cards
   ========================================================================== */

.parts-showcase-section {
  padding: 5.5rem 0;
  background-color: var(--charcoal);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

/* Assembly Selector Buttons: Large Interactive Grid */
.assemblies-selector-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.85rem;
  margin-bottom: 2.5rem;
}

@media (min-width: 640px) {
  .assemblies-selector-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 1200px) {
  .assemblies-selector-grid {
    grid-template-columns: repeat(8, 1fr);
  }
}

.assembly-btn-card {
  background: var(--charcoal-2);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  padding: 1rem 0.85rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-base);
  color: #C0C0C0;
  position: relative;
  overflow: hidden;
}

.assembly-btn-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background-color: var(--amber);
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.assembly-btn-card:hover {
  background: var(--charcoal-3);
  color: var(--white);
  border-color: rgba(248, 168, 0, 0.4);
  transform: translateY(-2px);
}

.assembly-btn-card:hover::before {
  transform: scaleX(1);
}

.assembly-btn-card.active {
  background: var(--charcoal-3);
  border-color: var(--amber);
  color: var(--white);
  box-shadow: 0 4px 18px var(--amber-glow);
}

.assembly-btn-card.active::before {
  transform: scaleX(1);
}

.assembly-btn-icon {
  width: 24px;
  height: 24px;
  margin-bottom: 0.5rem;
  color: var(--amber);
}

.assembly-btn-name {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1.25;
}

/* Large Card View: Main 3D Viewport Stage */
.large-viewer-stage {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: stretch;
  margin-bottom: 5rem;
}

@media (min-width: 1024px) {
  .large-viewer-stage {
    grid-template-columns: 1.45fr 1fr;
    gap: 2.5rem;
  }
}

.viewer-3d-card {
  position: relative;
  height: 520px;
  background: radial-gradient(circle at center, #262626 0%, #151515 100%);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-dark);
}

@media (min-width: 768px) {
  .viewer-3d-card {
    height: 600px;
  }
}

#parts-3d-canvas {
  width: 100%;
  height: 100%;
  display: block;
  cursor: grab;
}

#parts-3d-canvas:active {
  cursor: grabbing;
}

/* Loader */
.viewer-loader {
  position: absolute;
  inset: 0;
  background: rgba(24, 24, 24, 0.92);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  z-index: 10;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}

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

.amber-spinner {
  width: 52px;
  height: 52px;
  border: 4px solid rgba(248, 168, 0, 0.2);
  border-top-color: var(--amber);
  border-radius: 50%;
  animation: spin 0.9s cubic-bezier(0.5, 0, 0.5, 1) infinite;
}

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

.loader-text {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--amber);
}

/* Viewer Controls Overlay */
.viewer-controls-bar {
  position: absolute;
  bottom: 16px;
  left: 16px;
  right: 16px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  pointer-events: none;
  z-index: 5;
}

.viewer-controls-group {
  display: flex;
  gap: 8px;
  pointer-events: auto;
}

.viewer-ctrl-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(30, 30, 30, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  color: var(--white);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
  backdrop-filter: blur(8px);
  transition: all var(--transition-fast);
}

.viewer-ctrl-btn:hover {
  background: var(--amber);
  color: var(--charcoal);
  border-color: var(--amber);
}

.viewer-ctrl-btn.active {
  background: var(--amber);
  color: var(--charcoal);
  border-color: var(--amber);
  box-shadow: 0 0 12px var(--amber-glow);
}

.viewer-hint {
  font-size: 0.75rem;
  color: #A0A0A0;
  background: rgba(24, 24, 24, 0.85);
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  backdrop-filter: blur(8px);
}

/* Hotspots */
.hotspot-marker {
  position: absolute;
  width: 24px;
  height: 24px;
  transform: translate(-50%, -50%);
  cursor: pointer;
  z-index: 6;
  pointer-events: auto;
}

.hotspot-pin {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background-color: var(--amber);
  box-shadow: 0 0 15px var(--amber);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hotspot-pin::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 2px solid var(--amber);
  animation: pulse-ring 2s infinite ease-out;
}

@keyframes pulse-ring {
  0% { transform: scale(1); opacity: 1; }
  100% { transform: scale(2.2); opacity: 0; }
}

.hotspot-tooltip {
  position: absolute;
  bottom: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(6px);
  background-color: var(--charcoal-2);
  border: 1px solid var(--amber);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  width: 220px;
  color: var(--white);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.7);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  pointer-events: none;
  font-size: 0.8125rem;
  line-height: 1.4;
}

.hotspot-tooltip h5 {
  color: var(--amber);
  font-size: 0.875rem;
  margin-bottom: 4px;
  text-transform: uppercase;
}

.hotspot-marker:hover .hotspot-tooltip,
.hotspot-marker:focus .hotspot-tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

/* Part Info Panel */
.part-info-card {
  background-color: var(--charcoal-2);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.part-badge {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--amber);
  margin-bottom: 0.75rem;
}

.part-title {
  font-size: clamp(1.6rem, 2.5vw, 2.2rem);
  color: var(--white);
  margin-bottom: 1.25rem;
  line-height: 1.2;
}

.part-applicable {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 1.25rem;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--amber);
}

.part-applicable-label {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--amber);
  text-transform: uppercase;
  flex-shrink: 0;
}

.part-applicable-text {
  font-size: 0.875rem;
  color: #E0E0E0;
  margin: 0;
}

.part-desc {
  font-size: 0.98rem;
  color: #BEBEBE;
  line-height: 1.65;
  margin-bottom: 1.75rem;
}

.part-specs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.part-spec-item {
  display: flex;
  flex-direction: column;
}

.part-spec-name {
  font-size: 0.75rem;
  color: var(--slate-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-family: var(--font-heading);
}

.part-spec-val {
  font-size: 0.9375rem;
  color: var(--white);
  font-weight: 600;
}

.part-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* ==========================================================================
   LARGE CARD VIEW LAYOUT: 3 CARDS PER ROW GRID LAYOUT (.assemblies-large-cards-grid)
   ========================================================================== */
.assemblies-large-cards-section {
  padding: 6rem 0;
  background-color: var(--white);
  border-top: 1px solid var(--line);
}

.assemblies-large-cards-grid,
.large-assembly-cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

/* Tablet: 2 cards layout */
@media (min-width: 680px) and (max-width: 1023px) {
  .assemblies-large-cards-grid,
  .large-assembly-cards-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.75rem;
  }
}

/* Desktop: 3 cards layout */
@media (min-width: 1024px) {
  .assemblies-large-cards-grid,
  .large-assembly-cards-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
}

/* Large Displays */
@media (min-width: 1440px) {
  .assemblies-large-cards-grid,
  .large-assembly-cards-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2.25rem;
  }
}

.large-assembly-card {
  background: var(--off-white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  box-shadow: var(--shadow-sm);
  height: 100%;
}

.large-assembly-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--amber-dark);
}

.assembly-card-image-wrap {
  position: relative;
  height: 220px;
  overflow: hidden;
  background: var(--charcoal);
}

.assembly-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.large-assembly-card:hover .assembly-card-img {
  transform: scale(1.05);
}

.assembly-card-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(24, 24, 24, 0.88);
  color: var(--amber);
  border: 1px solid var(--amber);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-size: 0.7rem;
  font-family: var(--font-heading);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  backdrop-filter: blur(8px);
}

.assembly-card-body {
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  flex: 1;
}

.assembly-card-title {
  font-size: 1.25rem;
  line-height: 1.3;
  color: var(--charcoal);
  margin-bottom: 0.65rem;
}

.assembly-card-desc {
  font-size: 0.9rem;
  color: var(--slate);
  line-height: 1.55;
  margin-bottom: 1.25rem;
}

.assembly-card-specs {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.65rem;
  padding: 1rem 0;
  margin-bottom: 1.25rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

@media (min-width: 1200px) {
  .assembly-card-specs {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }
}

.assembly-card-spec-item {
  font-size: 0.8125rem;
}

.assembly-card-spec-item strong {
  display: block;
  font-family: var(--font-heading);
  text-transform: uppercase;
  color: var(--charcoal);
  font-size: 0.725rem;
  letter-spacing: 0.05em;
  margin-bottom: 2px;
}

.assembly-card-spec-item span {
  color: var(--slate);
  font-size: 0.825rem;
  line-height: 1.4;
}

.assembly-card-actions {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
}

.assembly-card-actions .btn {
  flex: 1 1 auto;
  justify-content: center;
  text-align: center;
}

/* Dark mode support when inside dark section (such as Home Page Section 2) */
.assemblies-large-cards-section[style*="charcoal"] .large-assembly-card {
  background: #202020;
  border: 1px solid rgba(255, 255, 255, 0.09);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.assemblies-large-cards-section[style*="charcoal"] .large-assembly-card:hover {
  border-color: var(--amber);
  box-shadow: 0 14px 36px rgba(248, 168, 0, 0.22);
}

.assemblies-large-cards-section[style*="charcoal"] .assembly-card-title {
  color: var(--white);
}

.assemblies-large-cards-section[style*="charcoal"] .assembly-card-desc {
  color: #B5B5B5;
}

.assemblies-large-cards-section[style*="charcoal"] .assembly-card-specs {
  border-top-color: rgba(255, 255, 255, 0.1);
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

.assemblies-large-cards-section[style*="charcoal"] .assembly-card-spec-item strong {
  color: var(--amber);
}

.assemblies-large-cards-section[style*="charcoal"] .assembly-card-spec-item span {
  color: #D2D2D0;
}

.assemblies-large-cards-section[style*="charcoal"] .btn-outline-dark {
  border-color: rgba(255, 255, 255, 0.25);
  color: #FFFFFF;
}

.assemblies-large-cards-section[style*="charcoal"] .btn-outline-dark:hover {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--charcoal);
}

/* ==========================================================================
   PRODUCT SUPPORT: 16 BRAND CARDS & FILTERS
   ========================================================================== */
.product-support-section {
  padding: 6rem 0;
  background-color: var(--off-white);
}

.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.65rem;
  margin-bottom: 3.5rem;
}

.filter-btn {
  padding: 10px 20px;
  background-color: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--slate);
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.filter-btn:hover {
  border-color: var(--amber-dark);
  color: var(--charcoal);
  transform: translateY(-1px);
}

.filter-btn.active {
  background-color: var(--charcoal);
  color: var(--amber);
  border-color: var(--charcoal);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
}

.products-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1280px) {
  .products-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.product-card {
  background-color: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 1.35rem 1.35rem 1.5rem;
  position: relative;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background-color: var(--amber);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
  z-index: 3;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(248, 168, 0, 0.45);
}

.product-card:hover::before {
  transform: scaleX(1);
}

.product-card-top {
  margin-bottom: 1.25rem;
}

/* Product Card Actual Aerospace Image */
.product-card-img-wrap {
  width: 100%;
  height: 165px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  position: relative;
  margin-bottom: 1.15rem;
  background-color: var(--charcoal);
  border: 1px solid var(--line);
}

.product-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.product-card:hover .product-card-img {
  transform: scale(1.07);
}

.product-card-img-badge {
  position: absolute;
  bottom: 8px;
  left: 8px;
  background: rgba(24, 24, 24, 0.85);
  border: 1px solid rgba(248, 168, 0, 0.4);
  color: var(--amber);
  font-family: var(--font-heading);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 3px 8px;
  border-radius: var(--radius-pill);
  backdrop-filter: blur(6px);
  z-index: 2;
}

.product-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background-color: var(--off-white);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  color: var(--charcoal);
  border: 1px solid var(--line);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.product-card:hover .product-icon-wrap {
  background-color: var(--amber);
  color: var(--charcoal);
  border-color: var(--amber);
}

.product-icon {
  width: 26px;
  height: 26px;
  stroke-width: 2;
}

.product-category-tag {
  font-family: var(--font-heading);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--amber-dark);
  margin-bottom: 0.35rem;
}

.product-brand-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--charcoal);
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.product-support-desc {
  font-size: 0.9375rem;
  color: var(--slate);
  line-height: 1.55;
  margin-bottom: 1.5rem;
}

.product-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  padding-top: 1.25rem;
}

.enquire-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--charcoal);
  transition: color var(--transition-fast), gap var(--transition-fast);
}

.enquire-link:hover {
  color: var(--amber-dark);
  gap: 12px;
}

.trademark-disclaimer {
  text-align: center;
  margin-top: 3.5rem;
  padding: 1.5rem;
  background-color: var(--white);
  border: 1px dashed var(--line);
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  color: var(--slate);
  line-height: 1.5;
}