/* ===============================================
   MODERN E-COMMERCE DESIGN SYSTEM
   =============================================== */

:root {
  /* Primary Colors */
  --primary-color: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #3b82f6;
  
  /* Secondary Colors */
  --secondary-color: #6366f1;
  --secondary-dark: #4f46e5;
  --secondary-light: #8b5cf6;
  
  /* Success & Error */
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  
  /* Light Theme Colors */
  --bg-color: #ffffff;
  --bg-secondary: #f8fafc;
  --text-color: #1f2937;
  --text-secondary: #6b7280;
  --border-color: #e5e7eb;
  --card-bg: #ffffff;
  --navbar-bg: #ffffff;
  --sidebar-bg: #f8fafc;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] {
  /* Dark Theme Colors */
  --bg-color: #0f172a;
  --bg-secondary: #1e293b;
  --text-color: #f1f5f9;
  --text-secondary: #94a3b8;
  --border-color: #334155;
  --card-bg: #1e293b;
  --navbar-bg: #0f172a;
  --sidebar-bg: #1e293b;
  
  /* Adjust primary colors for dark theme */
  --primary-color: #3b82f6;
  --primary-dark: #2563eb;
  --primary-light: #60a5fa;
  
  /* Dark theme shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.3), 0 10px 10px -5px rgba(0, 0, 0, 0.2);
}

/* ===============================================
   GLOBAL STYLES
   =============================================== */

* {
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--bg-color);
  padding-top: 0;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Prevent text cursor on non-editable elements */
h1, h2, h3, h4, h5, h6, p, span, div, section, article, header, footer, nav, aside, main,
label, a, button, .btn, .hero-banner, .hero-content, .hero-title, .hero-subtitle,
.section-title, .section-subtitle, .card-title, .product-name, .product-category {
  cursor: default;
}

/* Allow cursor on interactive/editable elements */
a, button, .btn, [role="button"], input, textarea, select, [contenteditable="true"] {
  cursor: pointer;
}

input, textarea, select {
  cursor: text;
}

input[type="submit"], input[type="button"], input[type="reset"] {
  cursor: pointer;
}

/* ===============================================
   NAVIGATION
   =============================================== */

.navbar {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%) !important;
  box-shadow: var(--shadow-md);
  border: none;
  padding: var(--spacing-sm) 0;
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--white) !important;
  text-decoration: none;
}

.nav-link {
  color: rgba(255, 255, 255, 0.9) !important;
  font-weight: 600;
  font-size: 1.05rem;
  padding: 12px 18px !important;
  border-radius: 12px;
  transition: all 0.3s ease;
  position: relative;
  margin: 0 4px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--white) !important;
  background-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  border-color: rgba(255, 255, 255, 0.2);
}

.nav-link i {
  font-size: 1.1rem;
  margin-right: 8px;
}

.navbar-text {
  color: rgba(255, 255, 255, 0.9) !important;
  font-weight: 500;
}

/* ===============================================
   BUTTONS
   =============================================== */

.btn {
  border-radius: var(--radius-md);
  font-weight: 600;
  padding: var(--spacing-sm) var(--spacing-lg);
  border: none;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: var(--white);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: var(--white);
}

.btn-secondary {
  background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
  color: var(--white);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: linear-gradient(135deg, var(--secondary-dark) 0%, var(--secondary-color) 100%);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: var(--white);
}

.btn-success {
  background: linear-gradient(135deg, var(--success-color) 0%, #059669 100%);
  color: var(--white);
}

.btn-success:hover {
  background: linear-gradient(135deg, #059669 0%, var(--success-color) 100%);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: var(--white);
}

.btn-outline-light {
  border: 2px solid rgba(255, 255, 255, 0.8);
  color: var(--white);
  background: transparent;
}

.btn-outline-light:hover {
  background: var(--white);
  color: var(--primary-color);
  border-color: var(--white);
  transform: translateY(-1px);
}

.btn-light {
  background: var(--white);
  color: var(--primary-color);
  font-weight: 600;
}

.btn-light:hover {
  background: var(--light-gray);
  color: var(--primary-dark);
  transform: translateY(-1px);
}

/* ===============================================
   CARDS
   =============================================== */

.card {
  border: none;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  background: var(--card-bg);
  color: var(--text-color);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-header {
  background: var(--bg-secondary);
  border: none;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0 !important;
  padding: var(--spacing-lg);
  font-weight: 600;
  color: var(--text-color);
}

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

.card-footer {
  background: transparent;
  border: none;
  padding: var(--spacing-lg);
}

/* Product Cards */
.product-card {
  height: 100%;
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all 0.3s ease;
  border: 1px solid #e5e7eb;
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-light);
}

.product-card.out-of-stock {
  opacity: 0.6;
  position: relative;
}

.product-card.out-of-stock::after {
  content: 'Out of Stock';
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background: var(--danger-color);
  color: var(--white);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  z-index: 2;
}

/* ===============================================
   IMAGES
   =============================================== */

.card-img-top {
  height: 250px;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.product-card:hover .card-img-top {
  transform: scale(1.05);
}

.img-fluid {
  max-height: 300px;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

/* ===============================================
   FORMS
   =============================================== */

.form-control {
  border: 2px solid #e5e7eb;
  border-radius: var(--radius-md);
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 1rem;
  transition: all 0.3s ease;
}

.form-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-label {
  font-weight: 600;
  color: var(--dark-color);
  margin-bottom: var(--spacing-sm);
}

/* ===============================================
   ALERTS
   =============================================== */

.alert {
  border: none;
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  font-weight: 500;
}

.alert-success {
  background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
  color: #065f46;
  border-left: 4px solid var(--success-color);
}

.alert-danger {
  background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
  color: #991b1b;
  border-left: 4px solid var(--danger-color);
}

.alert-warning {
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
  color: #92400e;
  border-left: 4px solid var(--warning-color);
}

.alert-info {
  background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
  color: #1e40af;
  border-left: 4px solid var(--primary-color);
}

/* ===============================================
   TABLES
   =============================================== */

.table {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.table th {
  background: linear-gradient(135deg, var(--light-gray) 0%, #e5e7eb 100%);
  border: none;
  color: var(--dark-color);
  font-weight: 600;
  padding: var(--spacing-lg);
}

.table td {
  border: none;
  padding: var(--spacing-lg);
  border-bottom: 1px solid #f3f4f6;
}

.table-responsive {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

/* ===============================================
   BADGES & TAGS
   =============================================== */

.badge {
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.75rem;
}

.stock-badge {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  z-index: 2;
}

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

.stock-badge.low-stock {
  background: var(--warning-color);
  color: var(--white);
}

.stock-badge.out-of-stock {
  background: var(--danger-color);
  color: var(--white);
}

/* ===============================================
   UTILITIES
   =============================================== */

.text-gradient {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
}

.bg-gradient-primary {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

.shadow-custom {
  box-shadow: var(--shadow-lg);
}

.rounded-custom {
  border-radius: var(--radius-xl);
}

/* ===============================================
   RESPONSIVE DESIGN
   =============================================== */

/* Mobile First Approach */
@media (max-width: 576px) {
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  .navbar-brand {
    font-size: 1.25rem;
  }
  
  .display-4 {
    font-size: 2rem !important;
  }
  
  .lead {
    font-size: 1rem;
  }
  
  .card-body {
    padding: var(--spacing-md);
  }
  
  .btn-lg {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 1rem;
  }
  
  .product-card .card-img-top {
    height: 180px;
  }
  
  .hero-section {
    padding: var(--spacing-xl) var(--spacing-md) !important;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-md);
  }
  
  .navbar-nav {
    text-align: center;
    padding: var(--spacing-md) 0;
    gap: 8px;
  }
  
  .nav-link {
    margin: 6px 0;
    font-size: 1.1rem;
    padding: 14px 24px !important;
    border-radius: 14px;
    white-space: nowrap;
  }
  
  .user-welcome {
    margin: var(--spacing-md) 0;
  }
  
  .card-body {
    padding: var(--spacing-lg);
  }
  
  .btn:not(.btn-sm):not(.btn-lg) {
    padding: var(--spacing-sm) var(--spacing-lg);
  }
  
  .product-card .card-img-top {
    height: 200px;
  }
  
  .cart-item:hover {
    margin: 0 !important;
    padding: var(--spacing-md) !important;
  }
  
  .position-sticky {
    position: relative !important;
    top: auto !important;
  }
  
  .table-responsive {
    font-size: 0.875rem;
  }
  
  /* Stack product items vertically on mobile */
  [data-view="list"] .product-card {
    flex-direction: column !important;
    max-height: none !important;
  }
  
  [data-view="list"] .card-img-top {
    width: 100% !important;
    height: 200px !important;
  }
}

@media (min-width: 769px) and (max-width: 992px) {
  .product-card .card-img-top {
    height: 220px;
  }
  
  .container {
    max-width: 95%;
  }
}

@media (min-width: 1200px) {
  .container {
    max-width: 1140px;
  }
  
  .product-card .card-img-top {
    height: 280px;
  }
}

/* High DPI Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .card-img-top,
  .img-fluid {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
  }
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .fade-in-up {
    animation: none;
    opacity: 1;
    transform: none;
  }
}

/* ===============================================
   ANIMATIONS
   =============================================== */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* ===============================================
   LOADING STATES
   =============================================== */

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

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid var(--primary-color);
  border-radius: 50%;
  border-top-color: transparent;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ===============================================
   QUANTITY CONTROLS ENHANCEMENT
   =============================================== */

.qty-input {
  border: 1px solid #e5e7eb !important;
  text-align: center !important;
  font-weight: 600 !important;
  transition: all 0.2s ease !important;
  user-select: none !important;
}

.qty-input:focus {
  border-color: var(--primary-color) !important;
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.1) !important;
  outline: none !important;
}

.qty-btn {
  background: var(--primary-color) !important;
  color: white !important;
  border: none !important;
  width: 35px !important;
  height: 35px !important;
  border-radius: var(--radius-sm) !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  transition: all 0.2s ease !important;
  cursor: pointer !important;
  font-size: 14px !important;
}

.qty-btn:hover {
  background: var(--primary-dark) !important;
  transform: translateY(-1px) !important;
  box-shadow: var(--shadow-md) !important;
}

.qty-btn:active {
  transform: translateY(0) !important;
  box-shadow: var(--shadow-sm) !important;
}

.quantity-controls {
  display: flex !important;
  align-items: center !important;
  gap: 8px !important;
  justify-content: center !important;
}

.quantity-controls .qty-input {
  width: 60px !important;
  height: 35px !important;
  border-radius: var(--radius-sm) !important;
}

/* Product Page Quantity Controls */
.quantity-btn {
  width: 40px !important;
  height: 40px !important;
  border-radius: 8px !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  transition: all 0.2s ease !important;
  border: none !important;
  font-size: 16px !important;
}

.quantity-btn:hover:not(:disabled) {
  transform: translateY(-1px) !important;
  box-shadow: 0 4px 8px rgba(0,0,0,0.15) !important;
}

.quantity-btn:active:not(:disabled) {
  transform: translateY(0) !important;
}

.quantity-btn:disabled {
  cursor: not-allowed !important;
  transform: none !important;
}

.quantity-display {
  font-size: 24px !important;
  font-weight: 700 !important;
  min-width: 50px !important;
  text-align: center !important;
  color: var(--dark-color) !important;
  transition: color 0.3s ease !important;
  user-select: none !important;
}

.quantity-controls {
  background: transparent !important;
  padding: 0 !important;
  border-radius: 8px !important;
  border: 1px solid #e5e7eb !important;
  overflow: hidden !important;
  margin: 8px 0 !important;
}

.quantity-section {
  margin: 20px 0 !important;
}

/* New visible quantity input-group tweaks */
#qtyMinus, #qtyPlus {
  min-width: 44px !important;
  font-weight: 600 !important;
}

#quantity.form-control {
  max-width: 80px !important;
  font-weight: 700 !important;
  font-size: 1rem !important;
  border-left: 1px solid #e5e7eb !important;
  border-right: 1px solid #e5e7eb !important;
  box-shadow: none !important;
}

#qtyMinus:disabled, #qtyPlus:disabled {
  opacity: .4 !important;
  cursor: not-allowed !important;
}

#qtyMinus:not(:disabled):active, #qtyPlus:not(:disabled):active {
  transform: scale(.95) !important;
}

.option-label {
  font-weight: 600 !important;
  margin-bottom: 10px !important;
  display: block !important;
  color: var(--dark-color) !important;
}

/* Quantity input focus feedback */
.qty-input-feedback {
  background-color: #e8f5e8 !important;
  border-color: var(--success-color) !important;
}

/* Responsive quantity controls */
@media (max-width: 576px) {
  .quantity-controls {
    gap: 6px !important;
  }
  
  .quantity-controls .qty-input {
    width: 50px !important;
    height: 32px !important;
    font-size: 14px !important;
  }
  
  .qty-btn {
    width: 32px !important;
    height: 32px !important;
    font-size: 12px !important;
  }
  
  .btn.btn-outline-secondary.btn-sm {
    width: 28px !important;
    height: 28px !important;
    font-size: 12px !important;
  }
}

/* ===============================================
   DARK MODE PRODUCT DESCRIPTIONS
   =============================================== */

/* Single Product Page Description */
[data-theme="dark"] .product-description {
  color: var(--text-color) !important;
}

/* Shop Page Product Card Descriptions */
[data-theme="dark"] .card-text.text-muted {
  color: var(--text-secondary) !important;
}

/* Additional product text elements */
[data-theme="dark"] .text-muted {
  color: var(--text-secondary) !important;
}

[data-theme="dark"] .text-dark {
  color: var(--text-color) !important;
}

/* Product names in dark mode */
[data-theme="dark"] .card-title {
  color: var(--text-color) !important;
}

[data-theme="dark"] .product-name {
  color: var(--text-color) !important;
}

/* ===============================================
   MOBILE RESPONSIVE FIXES (iPhone 16 Pro Max: 440px, iPhone 16: 393px)
   =============================================== */

/* General Mobile Fixes */
@media (max-width: 480px) {
  /* Ensure no horizontal overflow */
  html, body {
    overflow-x: hidden;
    width: 100%;
  }
  
  /* Container padding */
  .container, .container-fluid {
    padding-left: 12px !important;
    padding-right: 12px !important;
  }
  
  /* Hero section fixes */
  .hero-banner {
    padding: 20px 15px !important;
    margin: 0 !important;
    border-radius: 12px !important;
  }
  
  .hero-title {
    font-size: 1.5rem !important;
  }
  
  .hero-subtitle {
    font-size: 0.9rem !important;
  }
  
  /* Search box mobile fix */
  .hero-search {
    max-width: 100% !important;
    padding: 0 5px !important;
  }
  
  .search-box {
    padding: 4px 4px 4px 12px !important;
    border-radius: 30px !important;
  }
  
  .search-box input {
    font-size: 0.9rem !important;
    padding: 8px 10px !important;
  }
  
  .search-box button {
    padding: 8px 15px !important;
    font-size: 0.85rem !important;
    border-radius: 25px !important;
    white-space: nowrap;
  }
  
  /* Product cards */
  .product-card {
    margin-bottom: 15px !important;
  }
  
  /* Buttons */
  .btn {
    padding: 8px 12px !important;
    font-size: 0.9rem !important;
  }
  
  /* Navbar spacing */
  .navbar {
    padding: 10px 0 !important;
  }
  
  .navbar-brand {
    font-size: 1.3rem !important;
  }
}

/* iPhone 16 Pro Max specific (430px-440px width) */
@media (min-width: 420px) and (max-width: 450px) {
  .container {
    max-width: 100% !important;
  }
  
  .hero-search {
    max-width: 95% !important;
  }
  
  .search-box {
    width: 100% !important;
  }
}

/* iPhone 16 specific (390px-400px width) */
@media (min-width: 385px) and (max-width: 410px) {
  .container {
    max-width: 100% !important;
  }
  
  .hero-search {
    max-width: 100% !important;
    margin: 0 auto !important;
  }
  
  .search-box {
    width: 100% !important;
    justify-content: space-between;
  }
  
  .search-box input {
    min-width: 0 !important;
    flex: 1 !important;
  }
}

/* Safe area insets for notched phones (iPhone X+, iPhone 16) */
@supports (padding: env(safe-area-inset-bottom)) {
  .navbar {
    padding-top: max(10px, env(safe-area-inset-top)) !important;
  }
  
  footer {
    padding-bottom: max(20px, env(safe-area-inset-bottom)) !important;
  }
  
  .container, .container-fluid {
    padding-left: max(12px, env(safe-area-inset-left)) !important;
    padding-right: max(12px, env(safe-area-inset-right)) !important;
  }
}