/* ============================================
   TechStore - Theme Styles
   Dark/Light mode overrides
   ============================================ */

/* ============================================
   Dark Theme Variables (already in styles.css,
   additional component-level overrides here)
   ============================================ */

/* ============================================
   Dark Theme — Component Overrides
   ============================================ */

/* Body */
[data-theme="dark"] body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

/* Header */
[data-theme="dark"] .header {
  background: rgba(15, 15, 26, 0.92) !important;
  border-bottom-color: var(--border-color) !important;
}

/* Main Nav */
[data-theme="dark"] .main-nav {
  background: transparent;
  border-top-color: var(--border-color);
}

[data-theme="dark"] .nav-menu li a {
  color: var(--text-secondary);
}

[data-theme="dark"] .nav-menu li a:hover,
[data-theme="dark"] .nav-menu li a.active {
  color: var(--primary-color);
  background: rgba(129, 140, 248, 0.08) !important;
}

/* Cards */
[data-theme="dark"] .product-card,
[data-theme="dark"] .category-card,
[data-theme="dark"] .feature-item,
[data-theme="dark"] .cart-items,
[data-theme="dark"] .cart-summary,
[data-theme="dark"] .checkout-form {
  background: var(--bg-secondary);
  border-color: var(--border-color);
}

[data-theme="dark"] .product-card:hover,
[data-theme="dark"] .category-card:hover {
  box-shadow: 0 8px 24px rgba(129, 140, 248, 0.18);
}

/* Inputs */
[data-theme="dark"] .search-input,
[data-theme="dark"] .form-input,
[data-theme="dark"] .form-select,
[data-theme="dark"] .form-textarea,
[data-theme="dark"] .promo-input,
[data-theme="dark"] .sort-select {
  background: var(--bg-primary);
  border-color: var(--border-color);
  color: var(--text-primary);
}

[data-theme="dark"] .search-input:focus,
[data-theme="dark"] .form-input:focus,
[data-theme="dark"] .form-select:focus,
[data-theme="dark"] .form-textarea:focus {
  border-color: var(--primary-color);
  background: var(--bg-secondary);
  box-shadow: 0 0 0 3px rgba(129, 140, 248, 0.15);
}

[data-theme="dark"] input::placeholder,
[data-theme="dark"] textarea::placeholder {
  color: var(--text-light);
}

/* Buttons */
[data-theme="dark"] .btn-outline {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

[data-theme="dark"] .btn-outline:hover {
  background: var(--primary-color);
  color: white;
}

[data-theme="dark"] .btn-ghost:hover {
  background: var(--bg-secondary);
}

/* Badges */
[data-theme="dark"] .badge-new {
  background: linear-gradient(135deg, #6366F1 0%, #8B5CF6 100%);
}

[data-theme="dark"] .hero-badge,
[data-theme="dark"] .filter-tag {
  background: rgba(129, 140, 248, 0.12);
  color: var(--primary-color);
}

/* Product Image Backgrounds */
[data-theme="dark"] .product-image,
[data-theme="dark"] .cart-item-image,
[data-theme="dark"] .thumbnail-item,
[data-theme="dark"] .main-image,
[data-theme="dark"] .category-icon {
  background: var(--bg-primary);
}

/* Promo Code */
[data-theme="dark"] .promo-code {
  background: var(--bg-primary);
}

/* Specifications */
[data-theme="dark"] .specifications-grid {
  background: var(--border-color);
  border-color: var(--border-color);
}

[data-theme="dark"] .spec-row {
  background: var(--bg-primary);
}

[data-theme="dark"] .spec-label {
  background: var(--bg-secondary);
  border-right-color: var(--border-color);
}

/* Modal */
[data-theme="dark"] .modal-content {
  background: var(--bg-secondary);
  border-color: var(--border-color);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.8);
}

/* Toast */
[data-theme="dark"] .toast {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
}

/* Reviews */
[data-theme="dark"] .reviews-summary,
[data-theme="dark"] .review-item {
  background: var(--bg-primary);
}

[data-theme="dark"] .bar {
  background: var(--border-color);
}

/* Footer */
[data-theme="dark"] .footer {
  background: #04060E !important;
}

[data-theme="dark"] .footer-bottom {
  border-top-color: rgba(255, 255, 255, 0.05);
}

/* Delivery/Payment Options */
[data-theme="dark"] .option-content {
  background: var(--bg-primary);
  border-color: var(--border-color);
}

[data-theme="dark"] .delivery-option input:checked + .option-content,
[data-theme="dark"] .payment-option input:checked + .option-content {
  background: rgba(129, 140, 248, 0.08);
  border-color: var(--primary-color);
}

[data-theme="dark"] .option-icon {
  background: var(--bg-secondary);
}

/* Breadcrumbs */
[data-theme="dark"] .breadcrumbs {
  background: var(--bg-secondary);
  border-bottom-color: var(--border-color);
}

/* Empty States */
[data-theme="dark"] .empty-cart-icon,
[data-theme="dark"] .empty-icon,
[data-theme="dark"] .no-results-icon {
  background: rgba(129, 140, 248, 0.08);
  color: var(--primary-color);
}

/* Tabs */
[data-theme="dark"] .tabs-nav {
  border-bottom-color: var(--border-color);
}

[data-theme="dark"] .tab-btn {
  color: var(--text-secondary);
}

[data-theme="dark"] .tab-btn:hover {
  color: var(--primary-color);
}

[data-theme="dark"] .tab-btn.active {
  border-bottom-color: var(--primary-color);
  color: var(--primary-color);
}

/* Scrollbar */
[data-theme="dark"] ::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

[data-theme="dark"] ::-webkit-scrollbar-track {
  background: var(--bg-dark);
}

[data-theme="dark"] ::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: var(--radius-full);
}

[data-theme="dark"] ::-webkit-scrollbar-thumb:hover {
  background: var(--primary-color);
}

[data-theme="dark"] * {
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) var(--bg-dark);
}

/* Selection */
[data-theme="dark"] ::selection {
  background: rgba(129, 140, 248, 0.25);
  color: var(--text-primary);
}

/* Loading */
[data-theme="dark"] .loading-overlay {
  background: rgba(0, 0, 0, 0.85);
}

[data-theme="dark"] .spinner {
  border-color: var(--border-color);
  border-top-color: var(--primary-color);
}

/* Headings */
[data-theme="dark"] h1,
[data-theme="dark"] h2,
[data-theme="dark"] h3,
[data-theme="dark"] h4,
[data-theme="dark"] h5,
[data-theme="dark"] h6 {
  color: var(--text-primary);
}

/* Success/error states */
[data-theme="dark"] .delivery-info,
[data-theme="dark"] .product-availability {
  background: rgba(16, 185, 129, 0.12);
}

[data-theme="dark"] .product-availability.out-of-stock {
  background: rgba(239, 68, 68, 0.12);
}

/* Contact/info cards */
[data-theme="dark"] .contact-card,
[data-theme="dark"] .info-card {
  background: var(--bg-secondary);
  border-color: var(--border-color);
}

/* Stat cards */
[data-theme="dark"] .stat-card,
[data-theme="dark"] .value-card,
[data-theme="dark"] .team-card {
  background: var(--bg-secondary);
  border-color: var(--border-color);
}

/* Map */
[data-theme="dark"] .map-placeholder {
  background: var(--bg-secondary);
  color: var(--text-secondary);
}

/* Social cards */
[data-theme="dark"] .social-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
}

/* Alerts */
[data-theme="dark"] .alert-success {
  background: rgba(16, 185, 129, 0.12);
}
[data-theme="dark"] .alert-warning {
  background: rgba(245, 158, 11, 0.12);
}
[data-theme="dark"] .alert-danger {
  background: rgba(239, 68, 68, 0.12);
}
[data-theme="dark"] .alert-info {
  background: rgba(14, 165, 233, 0.12);
}

/* Product Actions */
[data-theme="dark"] .product-action-btn {
  background: var(--bg-secondary);
}

/* Quantity Selector */
[data-theme="dark"] .qty-btn {
  background: var(--bg-secondary);
}

[data-theme="dark"] .qty-input {
  background: var(--bg-primary);
}

/* About Pages */
[data-theme="dark"] .about-image {
  background: var(--bg-primary);
}

/* stats-section keeps its gradient in dark mode */
[data-theme="dark"] .team-section,
[data-theme="dark"] .contact-form-wrapper {
  background: var(--bg-primary);
}

/* In dark mode, stats gradient gets enhanced depth */
[data-theme="dark"] .stats-section {
  background: linear-gradient(135deg, #4338CA 0%, #0891B2 100%);
  box-shadow: 0 16px 48px rgba(67, 56, 202, 0.4);
}

[data-theme="dark"] .stat-card {
  background: rgba(255, 255, 255, 0.08) !important;
  border-color: rgba(255, 255, 255, 0.15) !important;
}

[data-theme="dark"] .stat-card:hover {
  background: rgba(255, 255, 255, 0.14) !important;
}

/* Sidebar */
[data-theme="dark"] .catalog-sidebar {
  background: var(--bg-secondary);
  border-color: var(--border-color);
}

[data-theme="dark"] .sidebar-header {
  border-bottom-color: var(--border-color);
}

[data-theme="dark"] .filter-group {
  border-bottom-color: var(--border-color);
}

/* ============================================
   Theme Toggle Button
   ============================================ */
.theme-toggle i {
  position: relative;
  z-index: 1;
  font-size: 1rem;
  transition: var(--transition-base);
}

[data-theme="dark"] .theme-toggle i {
  transform: rotate(30deg);
}

/* ============================================
   Smooth Theme Transition
   ============================================ */
body,
.header,
.footer,
.product-card,
.category-card,
.feature-item,
.btn,
.form-input,
.form-select,
.form-textarea,
.search-input,
.modal-content,
.toast {
  transition:
    background-color 0.3s ease,
    border-color 0.3s ease,
    color 0.3s ease,
    box-shadow 0.3s ease !important;
}

html.theme-switching,
html.theme-switching * {
  transition:
    background-color 0.3s ease,
    color 0.3s ease,
    border-color 0.3s ease,
    box-shadow 0.3s ease !important;
}

/* ============================================
   Accessibility
   ============================================ */
.keyboard-navigation *:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 3px;
}

/* ============================================
   System Theme Preference
   ============================================ */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --text-primary: #F1F5F9;
    --text-secondary: #94A3B8;
    --bg-primary: #0F0F1A;
    --bg-secondary: #1A1A2E;
    --border-color: #2D2D4E;
  }
}

/* ============================================
   High Contrast
   ============================================ */
@media (prefers-contrast: high) {
  [data-theme="dark"] {
    --border-color: #5B5B8F;
    --text-secondary: #CBD5E1;
  }

  [data-theme="dark"] .btn-outline {
    border-width: 3px;
  }
}

/* ============================================
   Reduced Motion
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .theme-toggle {
    transition: none;
  }
}

/* ============================================
   Print
   ============================================ */
@media print {
  [data-theme="dark"] {
    --text-primary: #000000;
    --text-secondary: #475569;
    --bg-primary: #ffffff;
    --bg-secondary: #f8faff;
    --border-color: #e2e8f0;
  }

  .theme-toggle,
  .header-actions,
  .mobile-menu-toggle {
    display: none !important;
  }
}