/* ============================================================================
   BATTERYWORLD - DESIGN SYSTEM & TOKENS
   ============================================================================
   Minimalist, data-dense design for e-commerce
   Extract design tokens below for reuse across all components
   ========================================================================== */

/* --- DESIGN TOKENS (CSS CUSTOM PROPERTIES) --- */
:root {
  /* Colors - Primary Palette */
  --color-primary: #E67E22;
  --color-primary-hover: #D35400;
  --color-primary-light: #F5E6D3;

  /* Colors - Semantic */
  --color-text-primary: #222222;
  --color-text-secondary: #666666;
  --color-text-muted: #999999;
  --color-text-inverse: #ffffff;

  /* Colors - Background */
  --color-bg-white: #ffffff;
  --color-bg-light: #F8F9FA;
  --color-bg-dark: #333333;

  /* Colors - States */
  --color-success: #27AE60;
  --color-error: #E74C3C;
  --color-warning: #F39C12;
  --color-info: #3498DB;

  /* Colors - Borders & Dividers */
  --color-border: #DDDDDD;
  --color-border-light: #EEEEEE;

  /* Spacing Scale */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 20px;
  --space-2xl: 30px;
  --space-3xl: 40px;

  /* Typography */
  --font-family: 'PT Sans', sans-serif;
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-base: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 20px;
  --font-size-2xl: 24px;

  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;

  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* Border Radius */
  --radius-none: 0px;
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 8px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 2px 5px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 20px rgba(0, 0, 0, 0.1);

  /* Transitions */

  /* Z-Index Scale */
  --z-base: 0;
  --z-dropdown: 50;
  --z-sticky: 100;
  --z-fixed: 200;
  --z-modal: 1000;

  /* Container Widths */
  --container-width: 1200px;
  --sidebar-width: 250px;
}

/* --- RESET & GLOBAL STYLES --- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  height: 100%;
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  font-family: var(--font-family);
  color: var(--color-text-primary);
  background-color: var(--color-bg-white);
  line-height: var(--line-height-normal);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  margin: 0;
  padding: 0;
}

/* --- TYPOGRAPHY --- */
h1, h2, h3, h4, h5, h6 {
  margin: 0;
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
}

h1 { font-size: var(--font-size-2xl); font-weight: var(--font-weight-extrabold); }
h2 { font-size: var(--font-size-xl); font-weight: var(--font-weight-bold); }
h3 { font-size: var(--font-size-lg); font-weight: var(--font-weight-semibold); }
h4 { font-size: var(--font-size-base); font-weight: var(--font-weight-semibold); }

p {
  margin: 0;
  color: var(--color-text-secondary);
}

a {
  color: inherit;
  text-decoration: none;
  
}

a:hover {
  color: var(--color-primary);
}

/* --- HEADER --- */
header {
  background-color: var(--color-bg-white);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-lg) var(--space-lg);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  box-shadow: var(--shadow-xs);
}

.header-container {
  max-width: var(--container-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.logo {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-primary);
  white-space: nowrap;
  flex-shrink: 0;
}

/* Search Bar */
.search-wrapper {
  flex-grow: 1;
  display: flex;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-md);
  overflow: hidden;
  
}

.search-wrapper:focus-within {
  box-shadow: 0 0 0 3px rgba(230, 126, 34, 0.1);
}

.search-select {
  padding: var(--space-md) var(--space-lg);
  border: none;
  background-color: var(--color-bg-light);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
  font-weight: var(--font-weight-medium);
  font-family: inherit;
}

.search-select:focus {
  outline: none;
}

.search-input {
  flex-grow: 1;
  padding: var(--space-md) var(--space-lg);
  border: none;
  outline: none;
  font-size: var(--font-size-base);
  font-family: inherit;
}

.search-btn {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  border: none;
  padding: var(--space-md) var(--space-xl);
  font-weight: var(--font-weight-bold);
  cursor: pointer;
  
  flex-shrink: 0;
}

.search-btn:hover {
  background-color: var(--color-primary-hover);
}

/* Header Actions */
.header-actions {
  display: flex;
  gap: var(--space-xl);
  font-size: var(--font-size-sm);
  white-space: nowrap;
  flex-shrink: 0;
  align-items: center;
}

.header-actions a {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  color: var(--color-text-primary);
  font-weight: var(--font-weight-medium);
  min-height: 50px;
}
}

.header-actions a img {
  width: 18px;
  height: 18px;
  object-fit: contain;
}

.header-actions a:hover img {
  filter: brightness(0.7);
}

.header-actions a:hover {
  color: var(--color-primary);
}

/* --- MAIN NAVIGATION --- */
nav {
  background-color: var(--color-bg-dark);
  color: var(--color-text-inverse);
}

.nav-container {
  max-width: var(--container-width);
  margin: 0 auto;
  display: flex;
  padding: 0 var(--space-lg);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.nav-container a {
  color: var(--color-text-inverse);
  padding: var(--space-md) var(--space-lg);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  
  white-space: nowrap;
  border-bottom: 2px solid transparent;
}

.nav-container a:hover {
  background-color: #555555;
}

.nav-container a.active {
  border-bottom-color: var(--color-primary);
}

/* --- LAYOUT --- */
.main-container {
  flex: 1;
  max-width: var(--container-width);
  margin: var(--space-xl) auto;
  padding: 0 var(--space-lg);
  display: flex;
  gap: var(--space-2xl);
  width: 100%;
}

.main-content {
  flex-grow: 1;
}

/* --- SIDEBAR FILTERS --- */
.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
}

.filter-group {
  margin-bottom: var(--space-2xl);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-lg);
}

.filter-group:last-child {
  border-bottom: none;
}

.filter-title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-md);
  color: var(--color-text-primary);
  text-
  letter-spacing: 0.5px;
}

.filter-option {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
  user-select: none;
}

.filter-option input[type="checkbox"],
.filter-option input[type="radio"] {
  cursor: pointer;
  accent-color: var(--color-primary);
  margin: 0;
  width: 16px;
  height: 16px;
}

.filter-option:hover {
  color: var(--color-text-primary);
}

.filter-option input:checked ~ span {
  color: var(--color-primary);
  font-weight: 700;
}

/* --- CATEGORY GRID --- */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-3xl);
  padding-bottom: var(--space-xl);
  border-bottom: 2px solid var(--color-border);
}

.category-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-align: center;
  
  background-color: var(--color-bg-white);
  cursor: pointer;
}

.category-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
  
}

.category-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.category-icon svg,
.category-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.category-name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

/* --- SECTION TITLE --- */
.section-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-xl);
  padding-left: var(--space-lg);
  border-left: 4px solid var(--color-primary);
  color: var(--color-text-primary);
}

/* --- PRODUCT GRID --- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-3xl);
}

.product-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  background-color: var(--color-bg-white);
  
}

.product-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  
}

.product-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.product-image {
  width: 100%;
  height: 140px;
  object-fit: contain;
  margin: 0;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-sm);
}

.product-model {
  margin: 0;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  line-height: var(--line-height-tight);
}

.product-title {
  margin: 0;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
}

.product-footer {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  padding-top: var(--space-sm);
}

.product-meta {
  display: none;
}

.product-price {
  margin: 0;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.product-stock {
  margin: 0;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-success);
}

.product-stock.out-of-stock {
  color: var(--color-error);
}

.add-to-cart {
  width: 100%;
  padding: var(--space-md);
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  font-family: inherit;
  cursor: pointer;
  
}

.add-to-cart:hover {
  background-color: var(--color-primary-hover);
}

/* --- BUTTONS --- */
.button,
button,
.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-lg);
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  cursor: pointer;
  text-decoration: none;
  
  font-family: inherit;
}

.button:hover,
button:hover,
.btn:hover {
  background-color: var(--color-primary-hover);
}

.button:disabled,
button:disabled,
.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Add to Cart Button - Full Width */
.add-to-cart {
  width: 100%;
  margin-top: var(--space-md);
  padding: var(--space-md);
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  cursor: pointer;
  
  font-family: inherit;
}

.add-to-cart:hover {
  background-color: var(--color-primary-hover);
}

/* --- FORMS --- */
input,
textarea,
select {
  font-family: inherit;
  font-size: var(--font-size-base);
  padding: var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(230, 126, 34, 0.1);
}

label {
  display: block;
  margin-bottom: var(--space-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.form-group {
  margin-bottom: var(--space-xl);
}

/* --- FOOTER --- */
footer {
  background-color: var(--color-bg-light);
  border-top: 1px solid var(--color-border);
  padding: var(--space-3xl) var(--space-lg);
  width: 100%;
}

.footer-container {
  max-width: var(--container-width);
  margin: 0 auto;
  text-align: center;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

/* --- UTILITIES --- */
.text-center { text-align: center; }
.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-muted { color: var(--color-text-muted); }

.mt-1 { margin-top: var(--space-lg); }
.mt-2 { margin-top: var(--space-2xl); }
.mt-3 { margin-top: var(--space-3xl); }
.mb-1 { margin-bottom: var(--space-lg); }
.mb-2 { margin-bottom: var(--space-2xl); }
.mb-3 { margin-bottom: var(--space-3xl); }
.p-1 { padding: var(--space-lg); }
.p-2 { padding: var(--space-2xl); }

.gap-1 { gap: var(--space-lg); }
.gap-2 { gap: var(--space-2xl); }

/* --- ALERTS --- */
.alert {
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
  border-radius: var(--radius-md);
  border-left: 4px solid;
  font-size: var(--font-size-sm);
}

.alert-success {
  background-color: #e8f5e9;
  border-color: var(--color-success);
  color: #2e7d32;
}

.alert-error {
  background-color: #ffebee;
  border-color: var(--color-error);
  color: #c2003d;
}

.alert-warning {
  background-color: #fff3e0;
  border-color: var(--color-warning);
  color: #e65100;
}

.alert-info {
  background-color: #e3f2fd;
  border-color: var(--color-info);
  color: #1565c0;
}

/* --- DARK MODE / DARK READER SUPPORT --- */
/* SVGs have explicit colors so they work with Dark Reader without extra filtering */

/* --- RESPONSIVE DESIGN --- */
@media (max-width: 768px) {
  .sidebar {
    display: none;
  }

  .header-container {
    flex-wrap: wrap;
    gap: var(--space-lg);
  }

  .search-wrapper {
    flex-basis: 100%;
    order: 3;
  }

  .search-select {
    display: none;
  }

  .header-actions {
    justify-content: space-around;
    flex-basis: 100%;
    order: 4;
  }

  .main-container {
    gap: var(--space-lg);
  }

  .category-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
  }

  .product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }

  .nav-container {
    overflow-x: auto;
  }

  .nav-container a {
    padding: var(--space-sm) var(--space-md);
    font-size: 12px;
  }

  .section-title {
    font-size: var(--font-size-lg);
  }
}

@media (max-width: 480px) {
  .header-container {
    flex-direction: column;
    align-items: stretch;
  }

  .logo {
    text-align: center;
  }

  .search-wrapper {
    flex-basis: 100%;
  }

  .header-actions {
    justify-content: space-around;
  }

  .category-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
  }

  .category-card {
    padding: var(--space-md);
  }

  .category-name {
    font-size: 11px;
  }

  .product-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .product-card {
    padding: var(--space-lg);
  }
}

/* --- LOADING STATES --- */
.loader {
  border: 3px solid var(--color-bg-light);
  border-top: 3px solid var(--color-primary);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  
}


.htmx-swapping {
  opacity: 0;
  
}

.htmx-settling {
  opacity: 1;
  
}

/* --- PRODUCT DETAIL PAGE --- */
.product-detail {
  width: 100%;
}

.breadcrumb {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
}

.breadcrumb a {
  color: var(--color-text-secondary);
}

.breadcrumb a:hover {
  color: var(--color-primary);
}

.breadcrumb-sep {
  margin: 0 var(--space-sm);
}

.product-detail-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.product-detail-main-image img {
  width: 100%;
  max-height: 400px;
  object-fit: contain;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
}

.product-detail-thumbnails {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-lg);
  overflow-x: auto;
}

.product-thumbnail {
  width: 64px;
  height: 64px;
  object-fit: contain;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  background-color: var(--color-bg-light);
  flex-shrink: 0;
}

.product-thumbnail:hover {
  border-color: var(--color-primary);
}

.product-detail-name {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-extrabold);
  margin-bottom: var(--space-md);
}

.product-detail-model {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
}

.product-detail-price-block {
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-border-light);
}

.product-detail-price {
  font-size: 32px;
  font-weight: var(--font-weight-extrabold);
  color: var(--color-primary);
}

.product-detail-special-price {
  font-size: 32px;
  font-weight: var(--font-weight-extrabold);
  color: var(--color-error);
}

.product-detail-old-price {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  text-decoration: line-through;
  margin-left: var(--space-md);
}

.product-detail-tax {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

.product-detail-stock {
  margin-bottom: var(--space-xl);
}

.stock-badge {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-sm);
}

.stock-badge.in-stock {
  background-color: #e8f5e9;
  color: #2e7d32;
}

.stock-badge.out-of-stock {
  background-color: #ffebee;
  color: #c2003d;
}

.stock-qty {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-left: var(--space-sm);
}

.product-detail-short-desc {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
  line-height: var(--line-height-relaxed);
}

.product-detail-variants {
  margin-bottom: var(--space-xl);
}

.variant-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-sm);
}

.variant-select {
  width: 100%;
  max-width: 300px;
}

.product-detail-actions {
  margin-bottom: var(--space-xl);
}

.qty-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.qty-row {
  display: flex;
  gap: var(--space-md);
  align-items: center;
}

.qty-input {
  width: 80px;
  text-align: center;
  font-weight: var(--font-weight-semibold);
}

.add-to-cart-btn {
  padding: var(--space-md) var(--space-3xl);
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  cursor: pointer;
  
  font-family: inherit;
}

.add-to-cart-btn:hover {
  background-color: var(--color-primary-hover);
}

.product-detail-shipping {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  display: flex;
  gap: var(--space-xl);
}

/* Spec Table */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--space-3xl);
}

.spec-table th,
.spec-table td {
  padding: var(--space-md) var(--space-lg);
  text-align: left;
  border-bottom: 1px solid var(--color-border-light);
  font-size: var(--font-size-sm);
}

.spec-table th {
  width: 180px;
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-semibold);
  background-color: var(--color-bg-light);
}

.spec-table td {
  color: var(--color-text-primary);
}

.product-detail-section {
  margin-bottom: var(--space-3xl);
}

.product-detail-description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  white-space: pre-wrap;
}

.product-detail-categories {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.category-tag {
  display: inline-block;
  padding: var(--space-xs) var(--space-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  
}

.category-tag:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background-color: var(--color-primary-light);
}

@media (max-width: 768px) {
  .product-detail-layout {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .product-detail-name {
    font-size: var(--font-size-xl);
  }

  .product-detail-price,
  .product-detail-special-price {
    font-size: var(--font-size-2xl);
  }
}


/* --- HIERARCHICAL CATEGORIES --- */
.category-tree {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.category-node {
  display: flex;
  flex-direction: column;
}

.category-label {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
}

.category-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  padding: 0;
  border: none;
  background: none;
  cursor: pointer;
  color: var(--color-text-secondary);
  font-size: 12px;
  flex-shrink: 0;
  transform: rotate(-90deg);
}

.category-toggle.expanded {
  transform: rotate(0deg);
}

.category-toggle:disabled {
  cursor: default;
  opacity: 0;
  pointer-events: none;
}

.category-children {
  display: flex;
  flex-direction: column;
  margin-left: 20px;
  max-height: 1000px;
  overflow: hidden;
  opacity: 1;
}

.category-children.collapsed {
  max-height: 0;
  opacity: 0;
}

.category-node[data-slug] > .category-label > .filter-option {
  margin: 0;
}

/* --- CATEGORY PAGE --- */
.category-detail {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-3xl) var(--space-lg);
}

.category-header {
  margin-bottom: var(--space-3xl);
}

.category-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin: 0 0 var(--space-sm) 0;
}

.category-count {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin: 0;
}

.category-section {
  margin-bottom: var(--space-3xl);
}

.section-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin: 0 0 var(--space-xl) 0;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-3xl);
}

.category-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 150px;
  padding: var(--space-lg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-bg-white);
  text-decoration: none;
  color: inherit;
}

.category-card:hover {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.category-card-name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  text-align: center;
  margin-bottom: var(--space-sm);
}

.category-card-count {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-align: center;
}

/* --- ERROR PAGE --- */
.error-content {
  max-width: 600px;
  margin: 60px auto;
  padding: var(--space-3xl) var(--space-lg);
  text-align: center;
}

.error-content h1 {
  font-size: var(--font-size-2xl);
  color: var(--color-error);
  margin-bottom: var(--space-lg);
}

.error-content p {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
}

.error-content .btn-home {
  display: inline-block;
  padding: var(--space-md) var(--space-lg);
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  text-decoration: none;
  border-radius: var(--radius-md);
  font-weight: var(--font-weight-semibold);
}

.error-content .btn-home:hover {
  background-color: var(--color-primary-hover);
}

/* --- HTMX INDICATOR --- */
.htmx-indicator {
  display: none;
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
}

.htmx-indicator.htmx-request {
  display: inline-block;
}

.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid #f3f3f3;
  border-top: 2px solid var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* --- SEARCH WRAPPER POSITIONING --- */
.search-wrapper {
  position: relative;
}

/* --- INFINITE SCROLL --- */
.infinite-scroll-sentinel {
  width: 100%;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: var(--space-lg);
}

.load-more-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.load-more-indicator .spinner {
  width: 20px;
  height: 20px;
  border-width: 2px;
  border-top-width: 2px;
}

.load-more-indicator.hidden {
  display: none;
}