/* s2bazar.com - Vanilla CSS - AA+ Accessibility, Light/Dark Mode, Responsive */

/* ============================================================================
   CSS CUSTOM PROPERTIES - Theme Variables
   ========================================================================= */
:root {
  /* Light Mode Colors */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #e9ecef;
  --text-primary: #212529;
  --text-secondary: #6c757d;
  --text-inverse: #ffffff;
  --border-color: #dee2e6;
  --accent-primary: #0066cc;
  --accent-hover: #0052a3;
  --success: #28a745;
  --warning: #ffc107;
  --danger: #dc3545;
  --info: #17a2b8;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  
  /* Typography */
  --font-system: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  
  /* Layout */
  --container-max: 1200px;
  --container-wide: 1400px;
  --border-radius: 0.375rem;
  --border-radius-lg: 0.5rem;
  --transition: all 0.3s ease;
}

[data-theme="dark"] {
  --bg-primary: #1a1a1a;
  --bg-secondary: #2d2d2d;
  --bg-tertiary: #3a3a3a;
  --text-primary: #e9ecef;
  --text-secondary: #adb5bd;
  --text-inverse: #1a1a1a;
  --border-color: #495057;
  --accent-primary: #4dabf7;
  --accent-hover: #339af0;
  --success: #51cf66;
  --warning: #ffd43b;
  --danger: #ff6b6b;
  --info: #22b8cf;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
}

/* ============================================================================
   BASE STYLES & RESET
   ========================================================================= */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-system);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* ============================================================================
   ACCESSIBILITY FOUNDATIONS
   ========================================================================= */
:focus {
  outline: 3px solid var(--accent-primary);
  outline-offset: 2px;
}

:focus:not(:focus-visible) {
  outline: none;
}

:focus-visible {
  outline: 3px solid var(--accent-primary);
  outline-offset: 2px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--accent-primary);
  color: var(--text-inverse);
  padding: var(--spacing-md);
  text-decoration: none;
  z-index: 10000;
}

.skip-link:focus {
  top: 0;
}

/* ============================================================================
   TYPOGRAPHY
   ========================================================================= */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }
h5, h6 { font-size: var(--font-size-base); }

p {
  margin-bottom: var(--spacing-md);
}

a {
  color: var(--accent-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover, a:focus {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* ============================================================================
   LAYOUT CONTAINERS
   ========================================================================= */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-wide {
  max-width: var(--container-wide);
}

/* ============================================================================
   HEADER & NAVIGATION
   ========================================================================= */
.site-header {
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

.header-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) 0;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.site-logo {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--accent-primary);
  text-decoration: none;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
}

.site-logo img {
  height: 45px;
  width: auto;
  display: block;
}

.site-logo:hover {
  text-decoration: none;
  opacity: 0.9;
}

.search-form {
  flex: 1;
  max-width: 600px;
  position: relative;
}

.search-input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  padding-right: 2.5rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: var(--font-size-base);
}

.search-btn {
  position: absolute;
  right: var(--spacing-sm);
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: var(--spacing-sm);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.btn-icon {
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: var(--spacing-sm);
  font-size: var(--font-size-lg);
  transition: var(--transition);
}

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

.main-nav {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.nav-list {
  list-style: none;
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-sm) 0;
  flex-wrap: wrap;
}

.nav-list a {
  color: var(--text-primary);
  padding: var(--spacing-sm) var(--spacing-md);
  display: block;
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.nav-list a:hover {
  background: var(--bg-tertiary);
  text-decoration: none;
}

/* ============================================================================
   BUTTONS
   ========================================================================= */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-base);
  font-weight: 500;
  text-align: center;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  line-height: 1.5;
}

.btn-primary {
  background: var(--accent-primary);
  color: var(--text-inverse);
}

.btn-primary:hover {
  background: var(--accent-hover);
  text-decoration: none;
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

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

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

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

.btn-outline {
  background: transparent;
  border: 2px solid var(--accent-primary);
  color: var(--accent-primary);
}

.btn-outline:hover {
  background: var(--accent-primary);
  color: var(--text-inverse);
}

.btn-lg {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-lg);
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-sm);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ============================================================================
   FORMS
   ========================================================================= */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
  color: var(--text-primary);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: var(--font-size-base);
  font-family: var(--font-system);
  transition: border-color 0.2s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--accent-primary);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-checkbox,
.form-radio {
  width: 1.25rem;
  height: 1.25rem;
  margin-right: var(--spacing-sm);
  cursor: pointer;
}

.checkbox-label,
.radio-label {
  display: flex;
  align-items: center;
  cursor: pointer;
  user-select: none;
}

/* ============================================================================
   CARDS & GRID
   ========================================================================= */
.card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.card-img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
}

.card-body {
  padding: var(--spacing-md);
}

.card-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

.card-text {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
}

.card-price {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--accent-primary);
}

.grid {
  display: grid;
  gap: var(--spacing-lg);
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }

/* ============================================================================
   HERO SECTION
   ========================================================================= */
.hero {
  background: linear-gradient(135deg, var(--accent-primary), #00a8ff);
  color: white;
  padding: var(--spacing-2xl) 0;
  text-align: center;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: var(--spacing-md);
  color: white;
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-xl);
  opacity: 0.95;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================================================
   BADGES
   ========================================================================= */
.badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-verified {
  background: var(--success);
  color: white;
}

.badge-featured {
  background: var(--warning);
  color: var(--text-inverse);
}

.badge-new {
  background: var(--info);
  color: white;
}

.badge-vintage {
  background: #8b4513;
  color: white;
}

/* ============================================================================
   FILTERS & SIDEBAR
   ========================================================================= */
.filters-section {
  background: var(--bg-secondary);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  margin-bottom: var(--spacing-xl);
}

.filter-group {
  margin-bottom: var(--spacing-lg);
}

.filter-title {
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.price-slider {
  width: 100%;
  margin: var(--spacing-md) 0;
}

.filter-options {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

/* ============================================================================
   PAGINATION
   ========================================================================= */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-sm);
  margin: var(--spacing-xl) 0;
  list-style: none;
}

.pagination a,
.pagination button {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  background: var(--bg-primary);
  color: var(--text-primary);
  text-decoration: none;
  transition: var(--transition);
}

.pagination a:hover,
.pagination button:hover {
  background: var(--accent-primary);
  color: var(--text-inverse);
  border-color: var(--accent-primary);
}

.pagination .active {
  background: var(--accent-primary);
  color: var(--text-inverse);
  border-color: var(--accent-primary);
}

/* ============================================================================
   DASHBOARD
   ========================================================================= */
.dashboard-layout {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: var(--spacing-xl);
  margin: var(--spacing-xl) 0;
}

.dashboard-sidebar {
  background: var(--bg-secondary);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  height: fit-content;
  position: sticky;
  top: 100px;
}

.dashboard-nav {
  list-style: none;
}

.dashboard-nav li {
  margin-bottom: var(--spacing-sm);
}

.dashboard-nav a {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--text-primary);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.dashboard-nav a:hover,
.dashboard-nav a.active {
  background: var(--accent-primary);
  color: var(--text-inverse);
  text-decoration: none;
}

.dashboard-content {
  background: var(--bg-primary);
}

.tab-buttons {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  border-bottom: 2px solid var(--border-color);
}

.tab-btn {
  background: none;
  border: none;
  padding: var(--spacing-md) var(--spacing-lg);
  cursor: pointer;
  color: var(--text-secondary);
  font-weight: 500;
  position: relative;
  transition: var(--transition);
}

.tab-btn.active {
  color: var(--accent-primary);
}

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent-primary);
}

.tab-content {
  display: none;
}

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

/* ============================================================================
   TABLES
   ========================================================================= */
.table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--spacing-lg) 0;
}

.table th,
.table td {
  padding: var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.table th {
  font-weight: 600;
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.table tr:hover {
  background: var(--bg-secondary);
}

/* ============================================================================
   FOOTER
   ========================================================================= */
.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
  margin-top: var(--spacing-2xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-section h4 {
  margin-bottom: var(--spacing-md);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

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

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border-color);
  color: var(--text-secondary);
}

/* ============================================================================
   UTILITY CLASSES
   ========================================================================= */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-secondary); }
.text-primary { color: var(--accent-primary); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.d-flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }

/* ============================================================================
   RESPONSIVE BREAKPOINTS
   ========================================================================= */
@media (max-width: 1024px) {
  .dashboard-layout {
    grid-template-columns: 1fr;
  }
  
  .dashboard-sidebar {
    position: static;
  }
  
  .grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  }
}

@media (max-width: 768px) {
  .header-main {
    flex-direction: column;
    align-items: stretch;
  }
  
  .search-form {
    max-width: 100%;
    order: 3;
  }
  
  .header-actions {
    justify-content: space-between;
    width: 100%;
  }
  
  .nav-list {
    flex-direction: column;
    gap: 0;
  }
  
  .grid,
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  :root {
    --font-size-3xl: 1.75rem;
    --font-size-2xl: 1.5rem;
  }
  
  .hero {
    padding: var(--spacing-xl) 0;
  }
  
  .btn-lg {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
  }
}

/* ============================================================================
   TOAST NOTIFICATIONS
   ========================================================================= */
.toast-container {
  position: fixed;
  top: 80px;
  right: var(--spacing-lg);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.toast {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-lg);
  min-width: 300px;
  animation: slideIn 0.3s ease;
}

.toast-success {
  border-left: 4px solid var(--success);
}

.toast-error {
  border-left: 4px solid var(--danger);
}

.toast-info {
  border-left: 4px solid var(--info);
}

@keyframes slideIn {
  from {
    transform: translateX(400px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* ============================================================================
   GALLERY
   ========================================================================= */
.gallery-main {
  position: relative;
  margin-bottom: var(--spacing-lg);
}

.gallery-main img {
  width: 100%;
  height: auto;
  border-radius: var(--border-radius-lg);
}

.gallery-thumbs {
  display: flex;
  gap: var(--spacing-sm);
  overflow-x: auto;
  padding: var(--spacing-sm) 0;
}

.gallery-thumb {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: var(--border-radius);
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
}

.gallery-thumb:hover,
.gallery-thumb.active {
  border-color: var(--accent-primary);
}

/* ============================================================================
   MODAL
   ========================================================================= */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  z-index: 10000;
  align-items: center;
  justify-content: center;
}

.modal.active {
  display: flex;
}

.modal-content {
  background: var(--bg-primary);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  max-width: 600px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
}

.modal-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background: none;
  border: none;
  font-size: var(--font-size-2xl);
  cursor: pointer;
  color: var(--text-secondary);
}

/* ============================================================================
   LOADING STATES
   ========================================================================= */
.spinner {
  border: 3px solid var(--border-color);
  border-top: 3px solid var(--accent-primary);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
  margin: var(--spacing-xl) auto;
}

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

.loading {
  opacity: 0.6;
  pointer-events: none;
}