/* Catalog Explorer - Modern Design */

:root {
  --catalog-primary: #a0a080;
  --catalog-primary-dark: #8a8a70;
  --catalog-bg: #f8f9fa;
  --catalog-white: #ffffff;
  --catalog-text: #2c3e50;
  --catalog-text-light: #6c757d;
  --catalog-border: #e0e0e0;
  --catalog-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  --catalog-shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.12);
  --catalog-radius: 12px;
  --catalog-transition: all 0.3s ease;
}

.catalog-explorer {
  max-width: 1400px;
}

/* Header Section */
.catalog-header {
  text-align: center;
  margin-bottom: 50px;
}

.catalog-title {
  font-size: 42px;
  font-weight: 700;
  color: var(--catalog-text);
  margin-bottom: 12px;
}

.catalog-subtitle {
  font-size: 18px;
  color: var(--catalog-text-light);
  margin-bottom: 35px;
}

/* Search Container */
.search-container {
  max-width: 600px;
  margin: 0 auto;
  position: relative;
}

.search-icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  width: 22px;
  height: 22px;
  color: var(--catalog-text-light);
  pointer-events: none;
}

.catalog-search-input {
  width: 100%;
  padding: 16px 50px 16px 55px;
  border: 2px solid var(--catalog-border);
  border-radius: var(--catalog-radius);
  font-size: 16px;
  color: var(--catalog-text);
  background: var(--catalog-white);
  transition: var(--catalog-transition);
  box-shadow: var(--catalog-shadow);
}

.catalog-search-input:focus {
  outline: none;
  border-color: var(--catalog-primary);
  box-shadow: 0 4px 16px rgba(160, 160, 128, 0.2);
}

.search-results-count {
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 14px;
  color: var(--catalog-text-light);
  font-weight: 500;
}

/* Catalog Layout */
.catalog-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 40px;
  margin-top: 40px;
  min-height: 600px;
}

/* Sidebar */
.catalog-sidebar {
  background: var(--catalog-white);
  border-radius: var(--catalog-radius);
  box-shadow: var(--catalog-shadow);
  overflow: hidden;
  border: 2px solid var(--catalog-border);
}

.sidebar-header {
  padding: 20px;
  background: linear-gradient(135deg, var(--catalog-bg) 0%, var(--catalog-white) 100%);
  border-bottom: 1px solid var(--catalog-border);
}

.sidebar-header h2 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  color: var(--catalog-text);
}

.sidebar-nav {
  padding: 10px 0;
}

.sidebar-item {
  margin: 0 10px 5px;
  border-radius: 8px;
  transition: var(--catalog-transition);
  cursor: pointer;
}

.sidebar-item:hover {
  background: var(--catalog-bg);
}

.sidebar-item.active {
  background: var(--catalog-primary);
}

.sidebar-item.active .sidebar-name,
.sidebar-item.active .sidebar-count {
  color: white;
}

.sidebar-item-content {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 15px;
}

.sidebar-icon {
  width: 36px;
  height: 36px;
  background: var(--catalog-white);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid var(--catalog-border);
}

.sidebar-icon svg {
  width: 20px;
  height: 20px;
  color: var(--catalog-primary);
}

.sidebar-item.active .sidebar-icon {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.3);
}

.sidebar-info {
  flex: 1;
  min-width: 0;
}

.sidebar-name {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--catalog-text);
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-count {
  font-size: 12px;
  color: var(--catalog-text-light);
  font-weight: 500;
}

/* Main Content */
.catalog-main {
  background: var(--catalog-white);
  border-radius: var(--catalog-radius);
  box-shadow: var(--catalog-shadow);
  border: 2px solid var(--catalog-border);
  overflow: hidden;
}

.main-content {
  min-height: 500px;
  position: relative;
}

.category-section {
  padding: 30px;
  display: none;
}

.category-section[hidden="false"] {
  display: block;
}

.section-header {
  margin-bottom: 30px;
  text-align: center;
}

.section-header h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--catalog-text);
  margin: 0 0 8px 0;
}

.section-description {
  font-size: 16px;
  color: var(--catalog-text-light);
  margin: 0;
}

/* Subcategories Grid */
.subcategories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

/* Subcategory Card */
.subcategory-card {
  background: var(--catalog-bg);
  border-radius: 12px;
  border: 1px solid var(--catalog-border);
  overflow: hidden;
  transition: var(--catalog-transition);
}

.subcategory-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--catalog-shadow);
  border-color: var(--catalog-primary);
}

.subcategory-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  background: var(--catalog-white);
}

.subcategory-link {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--catalog-text);
  transition: var(--catalog-transition);
}

.subcategory-link:hover {
  color: var(--catalog-primary);
}

.subcategory-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--catalog-primary);
}

.subcategory-info {
  flex: 1;
  min-width: 0;
}

.subcategory-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--catalog-text);
  margin: 0 0 4px 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.subcategory-count {
  font-size: 13px;
  color: var(--catalog-text-light);
  font-weight: 500;
}

.subcategory-toggle {
  width: 28px;
  height: 28px;
  background: var(--catalog-bg);
  border: 1px solid var(--catalog-border);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--catalog-transition);
  flex-shrink: 0;
}

.subcategory-toggle:hover {
  background: var(--catalog-primary);
  border-color: var(--catalog-primary);
}

.subcategory-toggle:hover svg {
  color: white;
}

.subcategory-toggle svg {
  width: 16px;
  height: 16px;
  transition: transform 0.3s ease;
}

.subcategory-toggle.active svg {
  transform: rotate(180deg);
}

/* Sub-subcategories */
.sub-subcategories {
  padding: 12px 18px 16px;
  background: var(--catalog-bg);
  border-top: 1px solid var(--catalog-border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sub-subcategories[hidden] {
  display: none;
}

.sub-subcategory-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background: var(--catalog-white);
  border-radius: 6px;
  text-decoration: none;
  color: var(--catalog-text);
  font-size: 14px;
  transition: var(--catalog-transition);
  border: 1px solid var(--catalog-border);
}

.sub-subcategory-link:hover {
  background: #f0f2f0;
  color: var(--catalog-primary);
  border-color: var(--catalog-primary);
}

.count-badge {
  background: var(--catalog-bg);
  color: var(--catalog-text-light);
  padding: 3px 8px;
  border-radius: 10px;
  font-size: 12px;
  font-weight: 600;
}

/* Default Section */
.default-section {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  width: 100%;
  pointer-events: none;
  z-index: 1;
}

.default-section.hidden {
  display: none;
}

.welcome-content {
  max-width: 400px;
  margin: 0 auto;
}

.welcome-icon {
  width: 80px;
  height: 80px;
  color: var(--catalog-border);
  margin-bottom: 20px;
}

.welcome-content h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--catalog-text);
  margin: 0 0 12px 0;
}

.welcome-content p {
  font-size: 16px;
  color: var(--catalog-text-light);
  margin: 0;
  line-height: 1.5;
}

/* No Subcategories */
.no-subcategories .empty-state {
  text-align: center;
  padding: 40px 20px;
}

.no-subcategories .empty-state svg {
  width: 60px;
  height: 60px;
  color: var(--catalog-border);
  margin-bottom: 16px;
}

.no-subcategories .empty-state h3 {
  font-size: 20px;
  color: var(--catalog-text);
  margin: 0 0 8px 0;
}

.no-subcategories .empty-state p {
  font-size: 14px;
  color: var(--catalog-text-light);
  margin: 0 0 20px 0;
}

.view-all-btn {
  display: inline-block;
  padding: 12px 24px;
  background: var(--catalog-primary);
  color: white;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  transition: var(--catalog-transition);
}

.view-all-btn:hover {
  background: var(--catalog-primary-dark);
  transform: translateY(-2px);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--catalog-text-light);
}

.empty-state svg {
  width: 100px;
  height: 100px;
  color: var(--catalog-border);
  margin-bottom: 20px;
}

.empty-state h3 {
  font-size: 24px;
  color: var(--catalog-text);
}

/* Responsive Design */
@media (max-width: 768px) {
  .catalog-title {
    font-size: 32px;
  }

  .catalog-subtitle {
    font-size: 16px;
  }

  .categories-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .catalog-search-input {
    padding: 14px 45px 14px 50px;
  }

  .category-header {
    padding: 16px;
  }

  .category-name {
    font-size: 16px;
  }

  .category-content {
    padding: 16px;
  }
}

@media (max-width: 480px) {
  .catalog-explorer {
    padding: 20px 16px;
  }

  .catalog-title {
    font-size: 26px;
  }

  .catalog-header {
    margin-bottom: 30px;
  }
}