/* ODAtlas - Modern, Intuitive Design System */
:root {
  /* Color palette - professional, clinical feel */
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-surface-elevated: #ffffff;
  --color-border: #e2e8f0;
  --color-border-strong: #cbd5e1;
  
  --color-primary: #0f766e;
  --color-primary-hover: #0d9488;
  --color-primary-light: #ccfbf1;
  
  --color-accent: #0369a1;
  --color-accent-hover: #0284c7;
  
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-text-subtle: #94a3b8;
  
  --color-success: #059669;
  --color-warning: #d97706;
  --color-error: #dc2626;
  --color-info: #0284c7;
  
  /* Typography */
  --font-sans: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  
  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
  
  /* Layout */
  --header-height: 64px;
  --sidebar-width: 260px;
  --ad-sidebar-width: 300px;
  --max-content: 1400px;
}

* {
  box-sizing: border-box;
}

/* Mobile: remove tap highlight, improve touch */
a, button, input, select, textarea {
  -webkit-tap-highlight-color: transparent;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

/* Layout */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* Sidebar Navigation */
.sidebar {
  width: var(--sidebar-width);
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  padding: var(--space-lg);
  position: fixed;
  height: 100vh;
  overflow-y: auto;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) 0;
  margin-bottom: var(--space-xl);
  text-decoration: none;
  color: var(--color-text);
  font-weight: 700;
  font-size: 1.25rem;
}

.sidebar-logo:hover {
  color: var(--color-primary);
}

.sidebar-logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
  font-size: 0.9rem;
}

.sidebar-logo-img {
  width: 40px;
  height: 40px;
  object-fit: contain;
  border-radius: var(--radius-md);
}

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

.nav-section-title {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
  padding: 0 var(--space-sm);
}

.nav-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-links a {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.9rem;
  transition: all 0.15s ease;
}

.nav-links a:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.nav-links a.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 600;
}

/* Quick Tools in Sidebar */
.quick-tools {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.quick-tool-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  color: var(--color-accent);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  transition: all 0.15s ease;
}

.quick-tool-link:hover {
  background: #e0f2fe;
  color: var(--color-accent-hover);
}

/* View Mode Toggle in Sidebar */
.view-mode-toggle {
  margin-bottom: var(--space-lg);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
}

.view-mode-toggle-label {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  user-select: none;
}

.view-mode-toggle-text {
  flex: 1;
}

.view-mode-toggle-input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.view-mode-toggle .toggle {
  width: 36px;
  height: 20px;
  background: var(--color-border);
  border-radius: 10px;
  position: relative;
  flex-shrink: 0;
  transition: background 0.2s;
}

.view-mode-toggle .toggle::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  background: white;
  border-radius: 50%;
  top: 2px;
  left: 2px;
  transition: transform 0.2s;
  box-shadow: var(--shadow-sm);
}

.view-mode-toggle-input:checked + .toggle {
  background: var(--color-primary);
}

.view-mode-toggle-input:checked + .toggle::after {
  transform: translateX(16px);
}

.view-mode-toggle-label:hover .view-mode-toggle-text {
  color: var(--color-text);
}

/* Main Content */
.main-content {
  flex: 1;
  min-width: 0; /* Allow shrinking so content doesn't overflow over ad sidebar */
  margin-left: var(--sidebar-width);
  margin-right: var(--ad-sidebar-width);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Homepage - no ads */
.index-page .main-content {
  margin-right: 0;
}

/* ADS_ENABLED=false: hide ad sidebar, extend content full width */
html.ads-disabled .ad-sidebar {
  display: none;
}
html.ads-disabled .main-content {
  margin-right: 0;
}

/* Header / Toolbar */
.page-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-md) var(--space-xl);
  position: sticky;
  top: 0;
  z-index: 100;
}

/* Product pages: compact header */
.product-page .page-header {
  padding: var(--space-sm) var(--space-xl);
}
.product-page .page-title {
  font-size: 1.25rem;
  margin: 0 0 var(--space-xs) 0;
}
.product-page .page-subtitle {
  font-size: 0.85rem;
  margin: 0;
}
.product-page .toolbar {
  margin-top: var(--space-sm);
  margin-bottom: 0;
  gap: var(--space-sm);
}
.product-page .search-box {
  padding: var(--space-xs) var(--space-sm);
}

/* Home page header override */
.index-page .page-header {
  position: sticky;
  top: 0;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: var(--space-lg) var(--space-xl) var(--space-lg);
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.index-page .page-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}
.index-page .page-subtitle {
  margin-bottom: var(--space-md);
}

.index-page .main-content {
  background: var(--color-bg);
}

.index-page .content-area {
  padding: var(--space-xl);
  max-width: var(--max-content);
  width: 100%;
  margin-left: auto;
  margin-right: auto;
}

/* Home page: Google-like hero search */
.home-search-toolbar {
  width: 100%;
  max-width: 584px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 0;
  justify-content: center;
}
.home-search-box {
  width: 100%;
  display: flex;
  align-items: center;
  gap: var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 24px;
  padding: var(--space-xs) var(--space-lg) var(--space-xs) var(--space-xl);
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.08);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}
.home-search-box:hover {
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
}
.home-search-box:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 2px 16px rgba(15, 118, 110, 0.15), 0 0 0 1px rgba(15, 118, 110, 0.2);
}
.home-search-icon {
  display: flex;
  align-items: center;
  color: var(--color-text-muted);
  flex-shrink: 0;
}
.home-search-box input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 1rem;
  background: transparent;
  min-width: 0;
}
.home-search-box input::placeholder {
  color: var(--color-text-subtle);
}

/* Home search autocomplete dropdown */
.home-search-box {
  position: relative;
}
.home-search-suggestions {
  position: absolute;
  top: calc(100% + var(--space-xs));
  left: 0;
  right: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-height: 320px;
  overflow-y: auto;
  z-index: 200;
  display: none;
}
.home-search-suggestions.home-search-suggestions-visible {
  display: block;
}
.home-search-suggestion-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  cursor: pointer;
  transition: background 0.15s;
  font-size: 0.95rem;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  font-family: inherit;
}
.home-search-suggestion-item:hover,
.home-search-suggestion-item.home-search-suggestion-selected {
  background: var(--color-primary-light);
}
.home-search-suggestion-icon {
  font-size: 1.1rem;
  opacity: 0.9;
}
.home-search-suggestion-text {
  color: var(--color-text);
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}
.home-search-suggestion-title {
  font-weight: 500;
}
.home-search-suggestion-subtitle {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.page-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 var(--space-sm) 0;
  color: var(--color-text);
}

.page-subtitle {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin: 0;
}

/* Toolbar - Search, Filters, Vertex */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
  margin-bottom: var(--space-lg);
}

.search-box {
  flex: 1;
  min-width: 200px;
  max-width: 400px;
  display: flex;
  align-items: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  transition: border-color 0.2s;
}

.search-box:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.1);
}

.search-box input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 0.95rem;
  background: transparent;
}

.search-box input::placeholder {
  color: var(--color-text-subtle);
}

/* Brand Pills */
.brand-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.brand-pill {
  padding: var(--space-xs) var(--space-md);
  border-radius: 999px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.15s ease;
}

.brand-pill:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.brand-pill.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

/* Vertex Converter Card */
.vertex-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  margin-bottom: var(--space-xl);
  box-shadow: var(--shadow-sm);
}

.toolbar .vertex-card {
  margin-bottom: 0;
}

.vertex-card h3 {
  margin: 0 0 var(--space-md) 0;
  font-size: 1rem;
  font-weight: 600;
}

.vertex-card p {
  margin: 0 0 var(--space-md) 0;
}

.vertex-card p:last-child {
  margin-bottom: 0;
}

.vertex-card a {
  color: var(--color-primary);
  text-decoration: none;
}

.vertex-card a:hover {
  text-decoration: underline;
}

.vertex-inputs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: flex-end;
}

.vertex-input-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.vertex-input-group label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

.vertex-input-group input {
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  width: 120px;
}

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

/* Content Area */
.content-area {
  flex: 1;
  min-width: 0; /* Allow shrinking in flex layout */
  padding: var(--space-xl);
  max-width: var(--max-content);
  width: 100%;
  background: #e8f4fc;
}

/* Products page: vertex + settings in content area */
.products-extras {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}
.products-extras .vertex-card {
  margin-bottom: 0;
  max-width: 500px;
}
.products-extras .settings-row {
  padding: 0;
  border: none;
  margin: 0;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

/* Product Tables */
.table-container {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--space-2xl);
}

.table-wrapper {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.data-table th {
  text-align: left;
  padding: var(--space-md) var(--space-lg);
  background: var(--color-bg);
  font-weight: 600;
  color: var(--color-text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
  border-bottom: 1px solid var(--color-border);
}

.data-table th[data-sortable] {
  cursor: pointer;
  user-select: none;
}

.data-table th[data-sortable]:hover {
  color: var(--color-primary);
}

.data-table td {
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}

.data-table tbody tr {
  transition: background 0.15s ease;
}

.data-table tbody tr[data-details-url] {
  cursor: pointer;
}

/* Detail page - odspecs.com style */
.detail-page-content {
  background: #fdf8e8;
}
.detail-header-bar {
  display: flex;
  align-items: center;
  margin-bottom: var(--space-md);
}
.detail-header-bar .btn-back {
  background: #f5e6b8;
  color: #333;
  border: 1px solid #d4c078;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  text-decoration: none;
}
.detail-header-bar .btn-back:hover {
  background: #ede0a8;
}
.detail-spec-container {
  max-width: 900px;
}
.detail-spec-card {
  background: #fff;
  border: 1px solid #d4c078;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}
.detail-title-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  flex-wrap: wrap;
  background: #4a4a4a;
  color: #fff;
  padding: var(--space-md) var(--space-xl);
}
.detail-mfg-link-inline {
  color: #b8d4ff;
  font-size: 0.9rem;
  text-decoration: none;
}
.detail-mfg-link-inline:hover {
  text-decoration: underline;
}
.detail-product-title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  color: #fff;
}
.detail-last-updated {
  margin: var(--space-sm) 0 0;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.8);
  width: 100%;
}
.detail-spec-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0;
}
.detail-spec-table th {
  background: #f0f0f0;
  text-align: left;
  padding: var(--space-sm) var(--space-lg);
  font-weight: 600;
  font-size: 0.9rem;
  border-bottom: 1px solid #ddd;
}
.detail-spec-table td {
  padding: var(--space-sm) var(--space-lg);
  border-bottom: 1px solid #eee;
  font-size: 0.9rem;
  vertical-align: top;
}
.detail-spec-table tr:last-child td {
  border-bottom: none;
}
.detail-spec-table .col-prop {
  font-weight: 500;
  color: #333;
  width: 140px;
}
.detail-spec-table .col-val {
  color: #222;
}
.detail-spec-table .col-notes {
  color: #555;
  font-size: 0.85rem;
}
.detail-notes {
  padding: var(--space-lg) var(--space-xl);
  font-size: 0.875rem;
  color: #555;
  line-height: 1.6;
  background: #fafafa;
  border-top: 1px solid #eee;
}
.detail-notes p {
  margin: 0;
}
.detail-missing-msg {
  padding: var(--space-xl);
  color: #666;
  font-size: 0.95rem;
}
.detail-loading {
  color: var(--color-text-muted);
}

.data-table tbody tr:hover {
  background: var(--color-primary-light);
}

.data-table tbody tr.search-highlight {
  background: var(--color-primary-light);
  box-shadow: inset 0 0 0 2px var(--color-primary);
}
.search-highlight-mark {
  background: var(--color-warning);
  color: var(--color-text);
  padding: 0.1em 0.2em;
  border-radius: 3px;
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

.data-table .product-name {
  font-weight: 600;
  color: var(--color-primary);
}

.data-table a {
  color: inherit;
  text-decoration: none;
}

.data-table a:hover {
  text-decoration: underline;
  color: var(--color-primary);
}

/* Price Links & Verification */
.price-with-links {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.price-value {
  font-weight: 500;
  color: var(--color-text);
}

.price-toggle {
  transition: all 0.2s;
}

.price-toggle:hover {
  opacity: 0.9;
  transform: scale(1.05);
}

.price-links {
  width: 100%;
  padding: var(--space-sm);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-top: var(--space-xs);
}

.price-links a {
  display: inline-block;
  padding: var(--space-xs) var(--space-sm);
  margin-right: var(--space-sm);
  margin-bottom: var(--space-xs);
  color: var(--color-primary);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: all 0.15s;
  font-size: 0.75rem;
}

.price-links a:hover {
  background: var(--color-primary-light);
  color: var(--color-primary-hover);
}

.col-price {
  min-width: 140px;
  position: relative;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 500;
}

.badge-tld {
  background: #fef2f2;
  color: var(--color-error);
}

.badge-tbd {
  background: #fffbeb;
  color: var(--color-warning);
}

.badge-myopia {
  background: #dcfce7;
  color: var(--color-success);
}

/* Tabs */
.tabs-container {
  margin-bottom: var(--space-lg);
}

.tabs {
  display: flex;
  gap: var(--space-xs);
  border-bottom: 2px solid var(--color-border);
  margin-bottom: var(--space-lg);
}

.tab-button {
  padding: var(--space-sm) var(--space-lg);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-bottom: -2px;
  font-family: inherit;
}

.tab-button:hover {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.tab-button.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  font-weight: 600;
}

.tab-content {
  display: none !important;
}

.tab-content.active {
  display: block !important;
}

/* Brand Section Headers */
.brand-section {
  margin-bottom: var(--space-2xl);
  scroll-margin-top: 140px; /* Account for sticky page header when scrolling via brand pills */
}

.brand-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-border);
}

.brand-header h2 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
}

.brand-header a {
  color: var(--color-accent);
  text-decoration: none;
  font-size: 0.85rem;
}

.brand-header a:hover {
  text-decoration: underline;
}

/* Cards for utility pages */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-decoration: none;
  color: inherit;
  transition: all 0.2s ease;
  display: block;
}

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

.card-icon {
  width: 48px;
  height: 48px;
  background: var(--color-primary-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-md);
}

.card h3 {
  margin: 0 0 var(--space-sm) 0;
  font-size: 1.1rem;
  font-weight: 600;
}

.card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  border: none;
  transition: all 0.15s ease;
  text-decoration: none;
}

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

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

.btn-secondary {
  background: var(--color-bg);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-border);
}

/* Settings toggles */
.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
}

.settings-row:last-child {
  border-bottom: none;
}

.settings-row label {
  font-size: 0.9rem;
  cursor: pointer;
}

.toggle {
  width: 44px;
  height: 24px;
  background: var(--color-border);
  border-radius: 12px;
  position: relative;
  cursor: pointer;
  transition: background 0.2s;
}

.toggle.active {
  background: var(--color-primary);
}

.toggle::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  background: white;
  border-radius: 50%;
  top: 2px;
  left: 2px;
  transition: transform 0.2s;
  box-shadow: var(--shadow-sm);
}

.toggle.active::after {
  transform: translateX(20px);
}

/* Footer */
.page-footer {
  padding: var(--space-xl);
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  margin-top: auto;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.footer-link-group {
  display: inline-flex;
  align-items: center;
  gap: var(--space-md);
}

.footer-links a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.85rem;
}

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

.footer-issue {
  margin-top: var(--space-md);
  font-size: 0.8rem;
  color: var(--color-text-subtle);
}

.footer-issue a {
  color: var(--color-text-muted);
  text-decoration: none;
}

.footer-issue a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.footer-credit {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
}

.cybredge-logo,
.CybrEdge-logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  text-decoration: none;
  color: var(--color-text);
  font-weight: 600;
  transition: opacity 0.2s;
}

.cybredge-logo:hover,
.CybrEdge-logo:hover {
  opacity: 0.85;
}

.cybredge-logo-img {
  height: 28px;
  width: auto;
  max-width: 140px;
  object-fit: contain;
}

.CybrEdge-icon {
  width: 24px;
  height: 24px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 0.7rem;
}

/* CybrEdge permanent ad in 3rd ad space */
.ad-cybredge {
  width: 100%;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-surface));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  text-align: center;
}

.ad-cybredge .cybredge-ad-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  color: var(--color-text);
}

.ad-cybredge .cybredge-ad-link:hover {
  color: var(--color-primary);
}

.ad-cybredge .cybredge-ad-img {
  max-width: 100%;
  height: 40px;
  width: auto;
  object-fit: contain;
}

.ad-cybredge p {
  margin: 0;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  line-height: 1.4;
}

.footer-note {
  font-size: 0.8rem;
  color: var(--color-text-subtle);
}

/* MSP support hint for optometrists */
.msp-hint {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
  padding: var(--space-sm) 0;
  margin-top: var(--space-md);
  font-size: 0.8rem;
}

.msp-hint span {
  color: var(--color-text-subtle);
}

.msp-hint a {
  color: var(--color-text-muted);
  font-weight: 500;
  text-decoration: none;
}

.msp-hint a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

/* Ad Sidebar */
.ad-sidebar {
  width: var(--ad-sidebar-width);
  background: var(--color-surface);
  border-left: 1px solid var(--color-border);
  padding: var(--space-lg);
  position: fixed;
  right: 0;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 10;
}

.ad-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.ad-header {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  text-align: center;
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--color-border);
}

.ad-placeholder {
  width: 100%;
  background: var(--color-bg);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
  color: var(--color-text-subtle);
  font-size: 0.85rem;
  text-align: center;
  min-height: 250px;
}

.ad-placeholder:first-of-type {
  min-height: 600px;
}

.ad-placeholder p {
  margin: 0 0 var(--space-xs) 0;
  font-weight: 500;
}

.ad-placeholder span {
  font-size: 0.75rem;
  color: var(--color-text-subtle);
}

/* ===== MOBILE & RESPONSIVE ===== */
/* Safe area insets for notched phones */
@supports (padding: env(safe-area-inset-top)) {
  body {
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
  }
  .page-header {
    padding-left: max(var(--space-xl), env(safe-area-inset-left));
    padding-right: max(var(--space-xl), env(safe-area-inset-right));
  }
  .sidebar {
    padding-left: max(var(--space-lg), env(safe-area-inset-left));
  }
  .ai-chat-panel {
    right: max(var(--space-lg), env(safe-area-inset-right));
    bottom: env(safe-area-inset-bottom);
  }
}

/* Narrow desktop: hide ad to prevent overlap, give content more room */
@media (max-width: 1100px) {
  .ad-sidebar {
    display: none;
  }
  
  .main-content {
    margin-right: 0;
  }
}

/* Tablet */
@media (max-width: 1024px) {
  .sidebar {
    width: 72px;
    padding: var(--space-md);
  }
  
  .sidebar-logo span,
  .nav-section-title,
  .nav-links a span,
  .quick-tool-link span {
    display: none;
  }
  
  .main-content {
    margin-left: 72px;
    margin-right: 0; /* Ad hidden at 1100px and below */
  }
  
  .nav-links a {
    justify-content: center;
    padding: var(--space-md);
  }
}

/* Tablet narrow: overflow scroll for tabs/tables (641-768px) */
@media (max-width: 768px) {
  .tabs {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .tab-button {
    white-space: nowrap;
  }
  .brand-pills {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}

/* Mobile - phones only (640px and below); 641-768px keeps tablet sidebar */
@media (max-width: 640px) {
  html {
    -webkit-text-size-adjust: 100%;
  }
  
  body {
    font-size: 16px; /* Prevents iOS zoom on input focus */
  }
  
  .app-layout {
    flex-direction: column;
  }
  
  /* Mobile sidebar: collapsible drawer */
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: min(320px, 85vw);
    max-width: 320px;
    height: 100vh;
    height: 100dvh;
    z-index: 1001;
    transform: translateX(-100%);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    border-right: none;
    box-shadow: none;
  }
  
  .sidebar.nav-open {
    transform: translateX(0);
    box-shadow: 8px 0 24px rgba(0, 0, 0, 0.15);
  }
  
  .sidebar-logo span,
  .nav-section-title,
  .nav-links a span,
  .quick-tool-link span {
    display: inline;
  }
  
  .nav-links a,
  .quick-tool-link {
    min-height: 44px;
    padding: var(--space-md) var(--space-lg);
    font-size: 1rem;
    display: flex;
    align-items: center;
  }
  
  .main-content {
    margin-left: 0;
    margin-right: 0;
    width: 100%;
  }
  
  /* Mobile header with hamburger */
  .page-header {
    padding: var(--space-md) var(--space-lg);
    padding-left: max(var(--space-lg), 52px); /* Space for hamburger */
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
  }
  .product-page .page-header {
    padding: var(--space-sm) var(--space-lg);
    padding-left: max(var(--space-lg), 52px);
  }
  
  .index-page .page-header {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
    padding: var(--space-lg) var(--space-md) var(--space-xl);
    padding-top: max(var(--space-lg), 52px); /* Space for hamburger */
  }
  .index-page .page-title {
    font-size: 1.5rem;
  }
  
  .page-header-inner {
    flex: 1;
    min-width: 0;
  }
  
  .nav-toggle-btn {
    position: fixed;
    top: var(--space-md);
    left: var(--space-md);
    left: max(var(--space-md), env(safe-area-inset-left));
    z-index: 1002;
    width: 44px;
    height: 44px;
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 1.25rem;
    cursor: pointer;
    color: var(--color-text);
    box-shadow: var(--shadow-sm);
    -webkit-tap-highlight-color: transparent;
  }
  
  .nav-toggle-btn:hover {
    background: var(--color-bg);
    border-color: var(--color-primary);
    color: var(--color-primary);
  }
  
  .nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s ease;
  }
  
  .nav-overlay.nav-open {
    display: block;
    opacity: 1;
  }
  
  .page-title {
    font-size: 1.25rem;
    margin-top: 0;
  }
  
  .page-subtitle {
    font-size: 0.875rem;
  }
  
  .ad-sidebar {
    display: none;
  }
  
  .content-area {
    padding: var(--space-md) var(--space-lg);
    padding-bottom: max(var(--space-xl), env(safe-area-inset-bottom));
  }
  
  .index-page .content-area {
    padding: var(--space-md) var(--space-lg);
  }
  
  .home-search-toolbar {
    max-width: 100%;
    padding: 0 var(--space-md);
  }
  .home-search-box {
    padding: var(--space-md) var(--space-lg) var(--space-md) var(--space-xl);
    min-height: 48px;
  }
  .home-search-box input {
    font-size: 16px; /* Prevents iOS zoom on focus */
  }
  .home-search-suggestions {
    max-height: 280px;
  }
  .home-search-suggestion-item {
    padding: var(--space-md) var(--space-lg);
    min-height: 48px;
  }
  
  .toolbar {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-md);
  }
  
  .search-box {
    max-width: none;
    min-width: 0;
    min-height: 44px;
  }
  
  .search-box input {
    font-size: 16px; /* Prevents iOS zoom */
  }
  
  /* Tables: horizontal scroll with touch */
  .table-container {
    margin-left: calc(-1 * var(--space-lg));
    margin-right: calc(-1 * var(--space-lg));
    border-radius: 0;
    border-left: none;
    border-right: none;
  }
  
  .table-container:not(:has(.table-wrapper)) {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  
  .table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    overflow-y: visible;
    margin-bottom: 0;
  }
  
  .table-wrapper::-webkit-scrollbar {
    height: 8px;
  }
  
  .data-table {
    font-size: 0.85rem;
    min-width: 600px;
  }
  
  .data-table th,
  .data-table td {
    padding: var(--space-sm) var(--space-md);
    min-width: 60px;
  }
  
  .data-table th:first-child,
  .data-table td:first-child {
    position: sticky;
    left: 0;
    background: inherit;
    z-index: 1;
    min-width: 80px;
  }
  
  .data-table thead th:first-child {
    background: var(--color-bg);
  }
  
  .data-table tbody td:first-child {
    background: var(--color-surface);
  }
  
  .data-table tbody tr:hover td:first-child {
    background: var(--color-primary-light);
  }
  
  .col-price {
    min-width: 100px;
  }
  
  /* Brand pills: horizontal scroll */
  .brand-pills {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    flex-wrap: nowrap;
    padding-bottom: var(--space-xs);
    gap: var(--space-sm);
  }
  
  .brand-pill {
    flex-shrink: 0;
    min-height: 40px;
    padding: var(--space-sm) var(--space-md);
    font-size: 0.9rem;
  }
  
  /* Vertex / calculator cards */
  .vertex-card {
    padding: var(--space-lg);
  }
  
  .vertex-inputs {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-lg);
  }
  
  .vertex-input-group input {
    width: 100%;
    min-width: 0;
    min-height: 44px;
    font-size: 16px;
  }
  
  /* Settings: touch-friendly */
  .settings-row {
    min-height: 48px;
    padding: var(--space-md) 0;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
  }
  
  .settings-row label {
    flex: 1;
    min-width: 0;
    font-size: 1rem;
    padding-right: var(--space-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
  }
  
  .settings-row input[type="checkbox"] {
    width: 24px;
    height: 24px;
    min-width: 24px;
    min-height: 24px;
    flex-shrink: 0;
    cursor: pointer;
  }
  
  /* Products page: extras stack on mobile */
  .products-extras {
    flex-direction: column;
    align-items: stretch;
  }
  .products-extras .vertex-card {
    max-width: none;
  }
  
  /* Tabs */
  .tabs {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    -ms-overflow-style: none;
    scrollbar-width: none;
    margin-left: calc(-1 * var(--space-lg));
    margin-right: calc(-1 * var(--space-lg));
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
  }
  
  .tabs::-webkit-scrollbar {
    display: none;
  }

  .tab-button {
    white-space: nowrap;
    font-size: 0.9rem;
    padding: var(--space-md) var(--space-lg);
    min-height: 44px;
  }
  
  /* Brand header */
  .brand-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }
  
  .brand-header a {
    font-size: 0.9rem;
  }
  
  /* Cards */
  .card-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  
  .card {
    padding: var(--space-lg);
    min-height: 44px;
  }
  
  /* Buttons */
  .btn {
    min-height: 44px;
    padding: var(--space-md) var(--space-xl);
  }
  
  /* Footer */
  .page-footer {
    padding: var(--space-lg) var(--space-lg);
    padding-bottom: max(var(--space-xl), env(safe-area-inset-bottom));
  }
  
  .footer-links {
    gap: var(--space-md);
  }
  
  .footer-links a {
    font-size: 0.9rem;
    padding: var(--space-sm) 0;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }
}

/* AI Chat - mobile */
@media (max-width: 640px) {
  .ai-chat-panel {
    right: var(--space-md);
    left: var(--space-md);
    width: auto;
    max-width: none;
    max-height: 60vh;
    max-height: 60dvh;
    border-radius: var(--radius-lg);
  }
  
  .ai-chat-messages {
    max-height: 180px;
  }
  
  .ai-chat-input-wrap {
    padding: var(--space-sm);
  }
  
  .ai-chat-send {
    min-height: 44px;
    padding: var(--space-md) var(--space-lg);
  }
  
  .ai-chat-input {
    min-height: 44px;
    font-size: 16px;
  }
}

/* Small phones */
@media (max-width: 480px) {
  .page-title {
    font-size: 1.15rem;
  }
  
  .browse-grid {
    grid-template-columns: 1fr;
  }
  
  .browse-card {
    padding: var(--space-lg);
  }
  
  .ai-hero-title {
    font-size: 1.5rem;
  }
  
  .sidebar.nav-open {
    width: min(280px, 90vw);
  }
}

/* ===== AI Assistant & Chat Panel ===== */
.ai-chat-panel {
  position: fixed;
  bottom: 0;
  right: var(--space-lg);
  width: 380px;
  max-width: calc(100vw - var(--space-xl));
  max-height: 420px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.12);
  display: flex;
  flex-direction: column;
  z-index: 1000;
  transition: transform 0.3s ease, max-height 0.3s ease, opacity 0.3s ease;
}

.ai-chat-panel.ai-chat-hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateY(100%);
  max-height: 0;
}

.ai-chat-panel.ai-chat-collapsed {
  max-height: 52px;
  overflow: hidden;
}

.ai-chat-panel.ai-chat-collapsed .ai-chat-messages,
.ai-chat-panel.ai-chat-collapsed .ai-chat-input-wrap {
  display: none;
}

.ai-chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: white;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  font-weight: 600;
  font-size: 0.95rem;
}

.ai-chat-toggle {
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: white;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 1.2rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}

.ai-chat-toggle:hover {
  background: rgba(255, 255, 255, 0.3);
}

.ai-chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-md);
  min-height: 120px;
  max-height: 220px;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.ai-chat-msg {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
}

.ai-chat-msg-user {
  flex-direction: row-reverse;
}

.ai-chat-msg-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
}

.ai-chat-msg-text {
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  line-height: 1.5;
}

.ai-chat-msg-assistant .ai-chat-msg-text {
  background: var(--color-primary-light);
  color: var(--color-text);
}

.ai-chat-msg-user .ai-chat-msg-text {
  background: var(--color-accent);
  color: white;
}

.ai-chat-input-wrap {
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-md);
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
}

.ai-chat-input {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-family: inherit;
}

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

.ai-chat-send {
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.2s;
}

.ai-chat-send:hover {
  background: var(--color-primary-hover);
}

/* AI highlight on page content */
.ai-highlight {
  animation: ai-highlight-pulse 2s ease-out;
  background: rgba(15, 118, 110, 0.12) !important;
  border-radius: var(--radius-sm);
}

@keyframes ai-highlight-pulse {
  0% { background: rgba(15, 118, 110, 0.35) !important; }
  100% { background: rgba(15, 118, 110, 0.12) !important; }
}

/* AI Landing hero */
.ai-hero {
  text-align: center;
  padding: var(--space-2xl) var(--space-xl);
  max-width: 640px;
  margin: 0 auto;
}

.ai-hero-title {
  font-size: 2rem;
  font-weight: 700;
  margin: 0 0 var(--space-md) 0;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.ai-hero-subtitle {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-2xl) 0;
  line-height: 1.6;
}

.ai-prompt-box {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-md) var(--space-lg);
  box-shadow: var(--shadow-lg);
  transition: border-color 0.2s, box-shadow 0.2s;
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.ai-prompt-box:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(15, 118, 110, 0.15);
}

.ai-prompt-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  opacity: 0.6;
}

.ai-prompt-input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 1.1rem;
  font-family: inherit;
  background: transparent;
}

.ai-prompt-input::placeholder {
  color: var(--color-text-subtle);
}

.ai-prompt-submit {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, transform 0.1s;
}

.ai-prompt-submit:hover {
  background: var(--color-primary-hover);
  transform: scale(1.05);
}

.ai-prompt-submit:active {
  transform: scale(0.95);
}

.ai-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
  margin-top: var(--space-lg);
}

.ai-suggestion-chip {
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all 0.15s;
}

.ai-suggestion-chip:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Browse Section */
.browse-section {
  padding: var(--space-2xl) 0;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.browse-section-title {
  font-size: 1.75rem;
  font-weight: 700;
  margin: 0 0 var(--space-sm) 0;
  color: var(--color-text);
  text-align: center;
}

.browse-section-subtitle {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-2xl) 0;
  text-align: center;
}

.browse-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.browse-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-decoration: none;
  color: inherit;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.browse-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  background: var(--color-surface-elevated);
}

.browse-card-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
  opacity: 0.9;
}

.browse-card-title {
  margin: 0 0 var(--space-xs) 0;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text);
}

.browse-card-desc {
  margin: 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.4;
}

/* Responsive browse grid */
@media (max-width: 640px) {
  .browse-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: var(--space-md);
  }
  
  .browse-card {
    padding: var(--space-lg);
  }
  
  .browse-card-icon {
    font-size: 2rem;
  }
  
  .browse-section-title {
    font-size: 1.5rem;
  }
  
  .ai-prompt-box {
    padding: var(--space-sm) var(--space-md);
  }
  
  .ai-prompt-icon {
    font-size: 1.2rem;
  }
  
  .ai-prompt-submit {
    width: 36px;
    height: 36px;
  }
}

/* ===== SIMPLE VIEW (Old-time HTML / ODAtlas.com classic look) ===== */
body.simple-view {
  font-family: Georgia, 'Times New Roman', Times, serif;
  font-size: 14px;
  background: #ffffff;
  color: #000;
}

body.simple-view .sidebar {
  width: 180px;
  padding: 8px;
  background: #ffffff;
  border-right: 1px solid #000;
}

body.simple-view .main-content {
  margin-left: 180px;
  background: #ffffff;
}

.simple-view-sep,
.simple-view-link {
  display: none;
}

body.simple-view .simple-view-sep,
body.simple-view .simple-view-link {
  display: inline;
}

body.simple-view .simple-view-sep {
  color: #000;
  margin: 0 4px;
}

body.simple-view .simple-view-link {
  color: #0000ee;
  text-decoration: underline;
  font-size: 14px;
}

body.simple-view .simple-view-link:hover {
  color: #551a8b;
}

body.simple-view .page-header {
  padding: 8px;
  border-bottom: 1px solid #000;
  background: #ffffff;
}

body.simple-view.index-page .page-title {
  display: none !important;
}

body.simple-view.index-page .page-subtitle {
  display: none !important;
}

body.simple-view .index-page .page-header {
  padding: 8px;
}

body.simple-view .index-page .toolbar.home-search-toolbar {
  flex-direction: row;
  align-items: center;
  margin: 0;
  max-width: none;
  gap: 0;
}

body.simple-view .index-page .home-search-box {
  width: 200px;
  max-width: 200px;
  padding: 2px 6px;
  border-radius: 0;
  min-height: auto;
  border: 1px solid #000;
  background: #fff !important;
  box-shadow: none;
}

body.simple-view .index-page .home-search-box input {
  font-size: 14px;
  font-family: inherit;
}

body.simple-view .content-area {
  padding: 12px;
}

body.simple-view .table-container {
  border: 1px solid #000;
  border-radius: 0;
  box-shadow: none;
  margin-bottom: 16px;
  overflow: hidden;
}

body.simple-view .data-table {
  font-size: 13px;
  border-collapse: collapse;
  font-family: Georgia, 'Times New Roman', Times, serif;
}

body.simple-view .data-table th {
  background: #333 !important;
  color: #fff !important;
  font-weight: bold;
  padding: 4px 6px;
  font-size: 12px;
  border: 1px solid #000;
  text-align: left;
}

body.simple-view .data-table td {
  padding: 4px 6px;
  border: 1px solid #000;
  vertical-align: middle;
  background: #fff !important;
}

body.simple-view .data-table tbody tr:nth-child(even) td {
  background: #f0f0f0 !important;
}

body.simple-view .data-table tbody tr:nth-child(odd) td {
  background: #fff !important;
}

body.simple-view .data-table tbody tr:nth-child(even) td:first-child {
  background: #f0f0f0 !important;
}

body.simple-view .data-table tbody tr:nth-child(odd) td:first-child {
  background: #fff !important;
}

body.simple-view .data-table .product-name {
  font-weight: bold;
  color: #0000ee;
}

body.simple-view .data-table .product-name a,
body.simple-view .data-table a.product-name {
  color: #0000ee;
  text-decoration: underline;
}

body.simple-view .data-table td.product-name {
  color: #0000ee;
}

body.simple-view .tab-content {
  display: block !important;
}

body.simple-view .tabs-container {
  margin-bottom: 8px;
}

body.simple-view .tabs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  border-bottom: none;
  margin-bottom: 8px;
}

body.simple-view .tab-button {
  padding: 2px 4px;
  margin: 0;
  background: none;
  border: none;
  color: #000;
  font-size: 14px;
  font-weight: normal;
  cursor: pointer;
  font-family: inherit;
}

body.simple-view .tab-button:not(:last-child)::after {
  content: ' |';
  color: #000;
  margin-left: 2px;
}

body.simple-view .tab-button:hover {
  color: #0000ee;
  text-decoration: underline;
}

body.simple-view .tab-button.active {
  color: #0000ee;
  text-decoration: underline;
  font-weight: bold;
}

body.simple-view .brand-header {
  margin-bottom: 8px;
  padding-bottom: 4px;
  border-bottom: 1px solid #000;
}

body.simple-view .brand-header h2 {
  font-size: 16px;
  margin: 0;
}

body.simple-view .brand-header a {
  font-size: 14px;
  color: #0000ee;
  text-decoration: underline;
}

body.simple-view .brand-section {
  margin-bottom: 16px;
}

body.simple-view .nav-links a {
  display: block;
  padding: 6px 8px;
  font-size: 13px;
  background: #fff !important;
  border: 1px solid #000;
  border-radius: 0;
  margin-bottom: 2px;
  color: #000;
  text-decoration: none;
  box-shadow: none;
}

body.simple-view .nav-links a:hover {
  background: #e0e0e0 !important;
}

body.simple-view .nav-links a.active {
  background: #333 !important;
  color: #fff !important;
  border-color: #000;
}

body.simple-view .quick-tool-link {
  display: block;
  padding: 6px 8px;
  font-size: 13px;
  background: #fff !important;
  border: 1px solid #000;
  border-radius: 0;
  margin-bottom: 2px;
  color: #000;
  text-decoration: none;
  box-shadow: none;
}

body.simple-view .quick-tool-link:hover {
  background: #e0e0e0 !important;
}

body.simple-view .nav-section-title {
  font-size: 11px;
  margin-bottom: 4px;
  font-weight: bold;
}

body.simple-view .sidebar-logo {
  margin-bottom: 12px;
}

body.simple-view .sidebar-logo-img {
  width: 28px;
  height: 28px;
}

body.simple-view .sidebar-logo {
  color: #000;
}

body.simple-view .card {
  padding: 8px;
  border-radius: 0;
  border: 1px solid #000;
  box-shadow: none;
  background: #fff !important;
}

body.simple-view .vertex-card {
  padding: 8px;
  margin-bottom: 12px;
  border: 1px solid #000;
  border-radius: 0;
  box-shadow: none;
  background: #fff !important;
}

body.simple-view .btn {
  border-radius: 0;
  box-shadow: none;
  border: 1px solid #000;
}

body.simple-view .btn-primary {
  background: #333 !important;
  color: #fff !important;
}

body.simple-view .btn-secondary {
  background: #fff !important;
  color: #000;
  border: 1px solid #000;
}

body.simple-view .home-search-box {
  padding: 2px 6px;
  border-radius: 0;
  border: 1px solid #000;
}

body.simple-view .page-footer {
  padding: 12px;
  border-top: 1px solid #000;
  background: #ffffff;
}

body.simple-view .page-footer a {
  color: #0000ee;
  text-decoration: underline;
}

body.simple-view .main-content a,
body.simple-view .content-area a {
  color: #0000ee;
  text-decoration: underline;
}

body.simple-view .view-mode-toggle {
  border-bottom: 1px solid #000;
}

body.simple-view .price-toggle {
  display: inline;
}

/* Simple view: tablet */
@media (max-width: 1024px) {
  body.simple-view .sidebar {
    width: 72px;
  }
  body.simple-view .main-content {
    margin-left: 72px;
  }
}

/* Simple view: mobile */
@media (max-width: 640px) {
  body.simple-view .main-content {
    margin-left: 0;
  }
}