/* Catalog & Discovery View Styles */

.catalog-layout {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 2.25rem;
  align-items: start;
  width: 100%;
}

/* Sidebar & Taxonomy Tree (Column 1 on Desktop) */
.filters-sidebar {
  grid-column: 1;
  background-color: var(--bg-secondary);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  position: sticky;
  top: 5rem;
  max-height: calc(100vh - 6.5rem);
  overflow-y: auto;
  z-index: 10;
}

/* Main Catalog Section (Column 2 on Desktop) */
.catalog-main {
  grid-column: 2;
  min-width: 0;
  width: 100%;
}

/* Drawer Backdrop */
.drawer-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 140;
}

.drawer-backdrop.active {
  display: block;
}

.filters-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--bg-card-border);
}

.filters-header h2 {
  font-size: 1.1rem;
  font-family: var(--font-mono);
}

.filter-group {
  margin-bottom: 1.5rem;
}

.filter-group h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--text-dim);
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

/* Tree Nodes */
.tree-node {
  margin-left: 0.75rem;
  border-left: 1px solid var(--bg-card-border);
  padding-left: 0.5rem;
}

.tree-root {
  margin-left: 0;
  border-left: none;
  padding-left: 0;
}

.tree-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.35rem 0.5rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.88rem;
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.tree-item:hover {
  color: var(--text-main);
  background-color: rgba(255, 255, 255, 0.04);
}

.tree-item.active {
  color: var(--accent-primary);
  background-color: rgba(56, 189, 248, 0.1);
  font-weight: 600;
}

.tree-toggle {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 0.75rem;
  width: 20px;
  height: 20px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Range Inputs */
.range-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.input-range {
  width: 100%;
  background: var(--bg-surface);
  border: 1px solid var(--bg-card-border);
  color: var(--text-main);
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-family: var(--font-mono);
}

.input-range:focus {
  outline: none;
  border-color: var(--accent-primary);
}

/* Search Header */
.catalog-main-header {
  margin-bottom: 1.5rem;
}

.search-bar-container {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.search-input-wrap {
  position: relative;
  flex: 1;
  min-width: 0;
}

.search-input {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--bg-card-border);
  color: var(--text-main);
  padding: 0.85rem 1rem 0.85rem 2.85rem;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-family: var(--font-sans);
  transition: all var(--transition-normal);
}

.search-input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-glow);
}

.search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-dim);
}

.mobile-filter-btn {
  display: none;
  min-height: 48px;
}

.catalog-status-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--bg-card-border);
}

.catalog-status-count {
  font-family: var(--font-mono);
  color: var(--accent-primary);
  font-weight: 600;
}

/* Material Grid */
.material-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: 1.5rem;
}

/* Material Card */
.material-card {
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
  cursor: pointer;
  user-select: none;
}

.material-card:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

.material-card:hover {
  transform: translateY(-4px);
  border-color: rgba(56, 189, 248, 0.3);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.card-media {
  position: relative;
  width: 100%;
  height: 190px;
  background-color: var(--bg-surface);
  overflow: hidden;
}

.card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

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

.card-code-badge {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  background-color: rgba(11, 15, 25, 0.85);
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-sm);
  color: var(--accent-primary);
}

.card-compare-check {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background-color: rgba(11, 15, 25, 0.85);
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-sm);
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  cursor: pointer;
  user-select: none;
}

.card-content {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.card-category {
  font-size: 0.75rem;
  color: var(--accent-secondary);
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

.card-title {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.card-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-properties {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: auto;
  padding-top: 0.75rem;
  border-top: 1px solid var(--bg-card-border);
}

.card-prop-chip {
  background: var(--bg-surface);
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.card-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
}

/* Floating Compare Bar */
.compare-floating-bar {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(120%);
  background: rgba(17, 24, 39, 0.95);
  backdrop-filter: blur(12px);
  border: 1px solid var(--accent-primary);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: 1.25rem;
  z-index: 60;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.compare-floating-bar.visible {
  transform: translateX(-50%) translateY(0);
}

/* Modal Window */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
  box-sizing: border-box;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background-color: var(--bg-secondary);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-lg);
  max-width: 820px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  position: relative;
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  overflow: hidden;
  box-sizing: border-box;
}

/* Pinned Modal Header Bar - Always Accessible and Never Scrolled Away */
.modal-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--bg-card-border);
  background-color: var(--bg-secondary);
  flex-shrink: 0;
  z-index: 10;
}

.modal-header-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.modal-header-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.modal-close-btn {
  background: var(--bg-surface);
  border: 1px solid var(--bg-card-border);
  color: var(--text-main);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.25rem;
  font-weight: 700;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.modal-close-btn:hover {
  background-color: var(--accent-danger);
  color: #fff;
  border-color: transparent;
  transform: rotate(90deg);
}

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  flex: 1;
}

/* Modal Table */
.modal-content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
  table-layout: fixed;
}

.modal-content th,
.modal-content td {
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid var(--bg-card-border);
  font-size: 0.88rem;
  text-align: left;
  word-break: break-word;
}

.modal-content th {
  color: var(--text-dim);
  font-weight: 500;
  width: 42%;
}

.modal-content td {
  color: var(--text-main);
  font-family: var(--font-mono);
  width: 58%;
}

/* Modal Action Buttons */
.modal-actions-print {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.75rem;
  border-top: 1px solid var(--bg-card-border);
  padding-top: 1.25rem;
  flex-wrap: wrap;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 4rem 1.5rem;
  background: var(--bg-secondary);
  border: 1px dashed var(--bg-card-border);
  border-radius: var(--radius-lg);
  grid-column: 1 / -1;
}

.empty-state h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.empty-state p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

/* Responsive Layout: Tablets and Mobile Devices */
@media (max-width: 991px) {
  .catalog-layout {
    grid-template-columns: 100%;
    gap: 1.25rem;
  }

  .catalog-main {
    grid-column: 1;
    width: 100%;
  }

  .mobile-filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    white-space: nowrap;
  }

  .filters-sidebar {
    grid-column: auto;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 85%;
    max-width: 320px;
    z-index: 150;
    transform: translateX(-100%);
    visibility: hidden;
    pointer-events: none;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.3s ease;
    box-shadow: var(--shadow-lg);
    border-radius: 0;
    max-height: 100vh;
    border-top: none;
    border-bottom: none;
  }

  .filters-sidebar.drawer-open {
    transform: translateX(0);
    visibility: visible;
    pointer-events: auto;
  }

  .drawer-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(4px);
    z-index: 140;
  }

  .drawer-backdrop.active {
    display: block;
  }

  .material-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .modal-overlay {
    padding: 0.5rem;
    align-items: center;
  }

  .modal-content {
    max-height: 94vh;
    width: 100%;
    border-radius: var(--radius-md);
  }

  .modal-header-bar {
    padding: 0.75rem 1rem;
  }

  .modal-body {
    padding: 1rem;
  }

  .modal-actions-print {
    flex-direction: column;
    gap: 0.75rem;
  }

  .modal-actions-print .btn {
    width: 100%;
    min-height: 44px;
    justify-content: center;
  }

  .compare-floating-bar {
    width: calc(100% - 1.5rem);
    max-width: 420px;
    bottom: 0.75rem;
    padding: 0.6rem 0.9rem;
    gap: 0.5rem;
    justify-content: space-between;
    border-radius: var(--radius-md);
  }

  .compare-floating-bar span {
    font-size: 0.8rem;
  }

  .compare-floating-bar .btn {
    padding: 0.35rem 0.55rem;
    font-size: 0.75rem;
    min-height: 38px;
  }
}

/* Modal Gallery & Thumbnails */
.modal-gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 0.85rem;
}

.modal-gallery-thumb {
  position: relative;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-surface);
  border: 1px solid var(--bg-card-border);
  cursor: pointer;
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
  user-select: none;
}

.modal-gallery-thumb:hover,
.modal-gallery-thumb:focus-visible {
  transform: translateY(-2px);
  border-color: var(--accent-primary);
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.35);
  outline: none;
}

.modal-gallery-thumb img {
  width: 100%;
  height: 110px;
  object-fit: cover;
  display: block;
}

.modal-gallery-caption {
  font-size: 0.75rem;
  padding: 0.35rem 0.5rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin: 0;
  background: var(--bg-surface);
}

.gallery-zoom-badge {
  position: absolute;
  top: 0.35rem;
  right: 0.35rem;
  background: rgba(11, 15, 25, 0.75);
  backdrop-filter: blur(4px);
  border-radius: var(--radius-full);
  padding: 0.15rem 0.35rem;
  font-size: 0.7rem;
  pointer-events: none;
}

/* Lightbox Carousel Modal Component */
.carousel-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(3, 7, 18, 0.94);
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.25s ease, visibility 0.25s ease;
  padding: 1.5rem;
}

.carousel-overlay.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.carousel-wrapper {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  max-width: 90vw;
  max-height: 90vh;
}

.carousel-slide {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.carousel-slide img {
  max-width: 80vw;
  max-height: 72vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg), 0 0 30px rgba(0, 0, 0, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.12);
  transition: opacity 0.2s ease;
}

.carousel-caption {
  margin-top: 0.75rem;
  font-size: 0.9rem;
  color: var(--text-main);
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(4px);
  padding: 0.4rem 1.25rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--bg-card-border);
  text-align: center;
  max-width: 80vw;
}

.carousel-counter {
  margin-top: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-primary);
  background: rgba(11, 15, 25, 0.85);
  padding: 0.2rem 0.75rem;
  border-radius: var(--radius-full);
}

.carousel-close-btn {
  position: absolute;
  top: -2.75rem;
  right: 0;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
  z-index: 510;
}

.carousel-close-btn:hover {
  background: rgba(239, 68, 68, 0.9);
  transform: scale(1.05);
}

.carousel-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s, color 0.2s;
  user-select: none;
  z-index: 510;
}

.carousel-prev-btn {
  left: -3.5rem;
}

.carousel-next-btn {
  right: -3.5rem;
}

.carousel-nav-btn:hover {
  background: var(--accent-primary);
  color: #0b0f19;
  transform: translateY(-50%) scale(1.08);
}

@media (max-width: 768px) {
  .carousel-prev-btn {
    left: 0.5rem;
  }
  .carousel-next-btn {
    right: 0.5rem;
  }
  .carousel-close-btn {
    top: 0.5rem;
    right: 0.5rem;
  }
  .carousel-slide img {
    max-width: 95vw;
    max-height: 68vh;
  }
}