/* Phượt 4P - Đồ Bảo Hộ Chuyên Nghiệp - CSS Hiện Đại */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Roboto:ital,wght@0,100;0,300;0,400;0,500;0,700;0,900;1,100;1,300;1,400;1,500;1,700;1,900&display=swap');

:root {
  /* Phượt 4P Brand Colors - Soft & Clean */
  --phuot-red: #e53e3e;
  --phuot-red-light: #fc8181;
  --phuot-red-dark: #c53030;
  --phuot-blue: #3182ce;
  --phuot-blue-light: #63b3ed;
  --phuot-gray: #718096;
  --phuot-gray-light: #f7fafc;
  --phuot-white: #ffffff;
  --phuot-black: #2d3748;
  
  /* System Colors */
  --primary-color: var(--phuot-red);
  --primary-light: var(--phuot-red-light);
  --primary-dark: var(--phuot-red-dark);
  --secondary-color: var(--phuot-blue);
  --secondary-light: var(--phuot-blue-light);
  --accent-color: var(--phuot-blue);
  --accent-light: var(--phuot-blue-light);
  
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --error-color: #ef4444;
  --info-color: #3b82f6;
  
  --white: var(--phuot-white);
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  
  /* Typography - Professional & Readable */
  --font-family: 'Inter', 'Segoe UI', 'Roboto', system-ui, -apple-system, sans-serif;
  --font-family-heading: 'Inter', 'Segoe UI', system-ui, sans-serif;
  --font-size-xs: 0.75rem;
  --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: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;
  
  /* Spacing */
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;
  --spacing-20: 5rem;
  
  /* Border & Effects */
  --border-radius-sm: 0.375rem;
  --border-radius: 0.5rem;
  --border-radius-lg: 0.75rem;
  --border-radius-xl: 1rem;
  --border-radius-2xl: 1.5rem;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --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);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  /* Transitions */
  --transition-fast: all 0.15s ease;
  --transition: all 0.3s ease;
  --transition-slow: all 0.5s ease;
  
  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

/* Modern Reset */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: 400;
  line-height: 1.6;
  color: var(--gray-800);
  background-color: var(--white);
  overflow-x: hidden;
}

/* Typography - Professional & Modern */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--phuot-black);
  margin-bottom: var(--spacing-4);
  letter-spacing: -0.025em;
}

h1 { 
  font-size: var(--font-size-5xl); 
  font-weight: 800;
  line-height: 1.1;
}
h2 { 
  font-size: var(--font-size-4xl); 
  font-weight: 700;
}
h3 { 
  font-size: var(--font-size-3xl); 
  font-weight: 600;
}
h4 { 
  font-size: var(--font-size-2xl); 
  font-weight: 600;
}
h5 { 
  font-size: var(--font-size-xl); 
  font-weight: 600;
}
h6 { 
  font-size: var(--font-size-lg); 
  font-weight: 600;
}

p {
  margin-bottom: var(--spacing-4);
  color: var(--gray-700);
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition-fast);
}

a:hover {
  color: var(--primary-light);
  text-decoration: underline;
}

/* Container */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-6);
}

@media (max-width: 640px) {
  .container {
    padding: 0 var(--spacing-4);
  }
}

/* Logo Phượt 4P - Simple Design */
.logo-phuot4p {
  width: 60px;
  height: 60px;
  background: var(--primary-color);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: var(--transition);
  z-index: 10;
}

.logo-phuot4p:hover {
  background: var(--primary-dark);
}

.logo-phuot4p .logo-text {
  font-size: 18px;
  font-weight: 700;
  color: white;
  z-index: 2;
  position: relative;
  font-family: var(--font-family-heading);
}

.logo-phuot4p .logo-ring {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 3px solid white;
  z-index: 3;
}

/* Text cong trên ring */
.logo-phuot4p .logo-ring::before {
  content: 'Phượt 4P - Đồ Phượt Sài Gòn';
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 7px;
  font-weight: 700;
  color: white;
  white-space: nowrap;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  z-index: 4;
  /* Tạo hiệu ứng cong */
  transform: translateX(-50%) rotate(-5deg);
  transform-origin: center;
}

.logo-phuot4p .logo-ring::after {
  content: 'Phượt Bốn Phương';
  position: absolute;
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 9px;
  font-weight: 700;
  color: var(--accent-color);
  white-space: nowrap;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
  z-index: 4;
  /* Tạo hiệu ứng cong */
  transform: translateX(-50%) rotate(5deg);
  transform-origin: center;
}

/* Logo Watermark - Chèn lên hình ảnh */
.logo-watermark {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 60px;
  height: 60px;
  background: rgba(220, 38, 38, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.3);
  z-index: 5;
  transition: var(--transition);
}

.logo-watermark:hover {
  background: rgba(220, 38, 38, 1);
  transform: scale(1.1);
}

.logo-watermark::before {
  content: '';
  position: absolute;
  width: 40px;
  height: 40px;
  background: white;
  border-radius: 50%;
  z-index: 1;
}

.logo-watermark .logo-text {
  font-size: 16px;
  font-weight: 900;
  color: #dc2626;
  z-index: 2;
  position: relative;
  font-family: 'Arial', sans-serif;
}

/* Logo Overlay - Phủ lên toàn bộ hình ảnh */
.logo-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120px;
  height: 120px;
  background: rgba(220, 38, 38, 0.8);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(15px);
  border: 4px solid rgba(255, 255, 255, 0.5);
  z-index: 5;
  transition: var(--transition);
}

.logo-overlay:hover {
  background: rgba(220, 38, 38, 0.95);
  transform: translate(-50%, -50%) scale(1.1);
}

.logo-overlay::before {
  content: '';
  position: absolute;
  width: 80px;
  height: 80px;
  background: white;
  border-radius: 50%;
  z-index: 1;
}

.logo-overlay .logo-text {
  font-size: 28px;
  font-weight: 900;
  color: #dc2626;
  z-index: 2;
  position: relative;
  font-family: 'Arial', sans-serif;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Logo trên Product Images */
.product-image {
  position: relative;
  overflow: hidden;
}

.product-image .logo-watermark {
  opacity: 0;
  transition: var(--transition);
}

.product-card:hover .product-image .logo-watermark {
  opacity: 1;
}

/* Logo trên Hero Background */
.hero {
  position: relative;
}

.hero .logo-overlay {
  position: absolute;
  top: 20px;
  left: 20px;
  width: 100px;
  height: 100px;
  transform: none;
}

/* Footer Logo */
.footer-logo {
  width: 50px !important;
  height: 50px !important;
}

.footer-logo::before {
  width: 35px !important;
  height: 35px !important;
}

.footer-logo .logo-text {
  font-size: 16px !important;
}

.footer-logo .logo-ring::before {
  font-size: 7px !important;
  top: -12px !important;
  transform: translateX(-50%) rotate(-5deg) !important;
}

.footer-logo .logo-ring::after {
  font-size: 7px !important;
  bottom: -12px !important;
  transform: translateX(-50%) rotate(5deg) !important;
}

/* Simple Header */
header {
  background: var(--primary-color);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  padding: var(--spacing-3) 0;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1280px;
}

.header-with-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
}

.brand-text {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: white;
  text-decoration: none;
  transition: var(--transition);
  font-family: var(--font-family-heading);
}

.brand-text:hover {
  color: var(--phuot-gray-light);
}

/* Modern Navigation */
.main-nav {
  display: flex;
  align-items: center;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--spacing-8);
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  font-size: var(--font-size-sm);
  position: relative;
  padding: var(--spacing-2) var(--spacing-3);
  border-radius: var(--border-radius);
  transition: var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--phuot-gray-light);
  background-color: rgba(255, 255, 255, 0.1);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 2px;
  background: var(--phuot-gray-light);
  border-radius: 1px;
}

/* Modern Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-6);
}

.cart-icon {
  position: relative;
  color: white;
  font-size: 1.5rem;
  text-decoration: none;
  padding: var(--spacing-2);
  border-radius: var(--border-radius);
  transition: var(--transition-fast);
}

.cart-icon:hover {
  color: var(--phuot-gray-light);
  background-color: rgba(255, 255, 255, 0.1);
}

.cart-count {
  position: absolute;
  top: 0;
  right: 0;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  color: white;
  border-radius: 50%;
  min-width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xs);
  font-weight: 700;
  border: 2px solid white;
  box-shadow: var(--shadow-md);
}

.login-btn {
  background: white;
  color: var(--primary-color);
  padding: var(--spacing-3) var(--spacing-6);
  border-radius: var(--border-radius-lg);
  text-decoration: none;
  font-weight: 600;
  font-size: var(--font-size-sm);
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.login-btn:hover {
  background: var(--phuot-gray-light);
  color: var(--primary-dark);
}

/* Hamburger Menu */
.hamburger-menu {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
}

.hamburger-menu span {
  width: 25px;
  height: 3px;
  background: white;
  transition: var(--transition);
}

.hamburger-menu.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger-menu.active span:nth-child(2) {
  opacity: 0;
}

.hamburger-menu.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* Main Content */
main {
  margin-top: 80px;
}

/* Simple Hero Section */
.hero {
  background: var(--phuot-gray-light);
  color: var(--phuot-black);
  padding: 100px 0;
  text-align: center;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.05)"/><circle cx="10" cy="60" r="0.5" fill="rgba(255,255,255,0.05)"/><circle cx="90" cy="40" r="0.5" fill="rgba(255,255,255,0.05)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero h1 {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  margin-bottom: var(--spacing-4);
  color: var(--phuot-black);
}

.hero p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-6);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  color: var(--phuot-gray);
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-6);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--spacing-8);
}

/* Modern Button System */
.btn {
  padding: var(--spacing-4) var(--spacing-8);
  border-radius: var(--border-radius-xl);
  text-decoration: none;
  font-weight: 600;
  font-size: var(--font-size-base);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: var(--transition-slow);
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, var(--secondary-color) 0%, #f59e0b 100%);
  color: var(--accent-color);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
  background: linear-gradient(135deg, #fbbf24 0%, var(--secondary-color) 100%);
}

.btn-secondary {
  background: transparent;
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: white;
  color: white;
  box-shadow: var(--shadow-md);
}

/* Features Section */
.features {
  padding: 80px 0;
  background: var(--gray-100);
}

.features .container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.features h2 {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent-color);
  margin-bottom: 20px;
}

.features p {
  text-align: center;
  font-size: 1.1rem;
  color: var(--gray-600);
  margin-bottom: 40px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  width: 100%;
}

.feature-item {
  text-align: center;
  padding: 24px;
  background: white;
  border-radius: 12px;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
}

.feature-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.feature-item .icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
  color: var(--primary-color);
  opacity: 1;
}

.feature-item h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--accent-color);
  margin-bottom: 12px;
}

.feature-item p {
  color: var(--gray-600);
  line-height: 1.6;
}

/* Product Categories - Simple Grid */
.product-categories {
  padding: 80px 0;
  background: var(--phuot-gray-light);
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--spacing-6);
  width: 100%;
}

.category-item {
  text-align: center;
  padding: var(--spacing-4);
  background: white;
  border-radius: 12px;
  transition: var(--transition);
  cursor: pointer;
  border: 1px solid #e5e7eb;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  min-height: 180px;
  overflow: hidden;
}

.category-item:hover {
  border-color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(220, 38, 38, 0.15);
}

/* Category Images - Clean & Modern */
.category-item .product-image {
  width: 100%;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-3);
  background-color: #f8fafc;
  border-radius: 8px;
  padding: var(--spacing-2);
  overflow: hidden;
  flex-grow: 1;
  position: relative;
}

.category-item .product-image img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  filter: grayscale(100%) brightness(0) contrast(100%);
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: var(--transition);
}

.category-item:hover .product-image img {
  transform: translate(-50%, -50%) scale(1.05);
  filter: grayscale(0%) brightness(100%) contrast(100%);
}

.category-item h4 {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: white;
  margin-bottom: 0;
  font-family: var(--font-family-heading);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background-color: var(--primary-color);
  padding: var(--spacing-2) var(--spacing-3);
  margin-top: auto;
  width: calc(100% + var(--spacing-8));
  margin-left: calc(-1 * var(--spacing-4));
  margin-right: calc(-1 * var(--spacing-4));
  border-bottom-left-radius: 12px;
  border-bottom-right-radius: 12px;
  border-top-left-radius: 0;
  border-top-right-radius: 0;
}

.category-item p {
  display: none;
}

/* Featured Products */
.featured-products {
  padding: 80px 0;
  background: var(--gray-100);
}

.featured-products .container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.featured-products h2 {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent-color);
  margin-bottom: 20px;
}

.featured-products p {
  text-align: center;
  font-size: 1.1rem;
  color: var(--gray-600);
  margin-bottom: 40px;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
  width: 100%;
}

.product-card {
  background: white;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  border: 1px solid rgba(0, 0, 0, 0.05);
  position: relative;
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
  border-color: rgba(229, 62, 62, 0.2);
}

.product-image {
  width: 100%;
  height: 220px;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  font-size: 3rem;
  color: var(--gray-500);
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.product-info {
  padding: 24px 20px 20px;
  background: white;
}

.product-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 12px;
  line-height: 1.4;
  font-family: var(--font-family-heading);
}

.product-price {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary-color);
  display: flex;
  align-items: center;
  gap: 8px;
}

.product-price .original {
  font-size: 1rem;
  color: var(--gray-500);
  text-decoration: line-through;
  font-weight: 500;
}

.sale-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--primary-color);
  color: white;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  z-index: 2;
  box-shadow: 0 2px 8px rgba(229, 62, 62, 0.3);
}

/* Why Choose Us */
.why-choose-us {
  padding: 80px 0;
  background: white;
}

.why-choose-us .container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.why-choose-us h2 {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent-color);
  margin-bottom: 20px;
}

.why-choose-us p {
  text-align: center;
  font-size: 1.1rem;
  color: var(--gray-600);
  margin-bottom: 40px;
}

.reasons-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 30px;
  width: 100%;
}

.reason-item {
  text-align: center;
  padding: 20px;
  background: var(--gray-100);
  border-radius: 12px;
  font-weight: 600;
  color: var(--accent-color);
  transition: var(--transition);
}

.reason-item:hover {
  background: var(--primary-color);
  color: white;
  transform: translateY(-3px);
}

/* Footer */
.footer {
  background: var(--accent-color);
  color: white;
  padding: 60px 0 20px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--secondary-color);
}

.footer-col ul {
  list-style: none;
  padding: 0;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  color: #ffffff;
  text-decoration: none;
  transition: var(--transition);
  opacity: 0.9;
}

.footer-col ul li a:hover {
  color: var(--secondary-color);
  opacity: 1;
}

.social-links {
  display: flex;
  gap: 15px;
  margin-top: 20px;
}

.social-links a {
  width: 40px;
  height: 40px;
  background: var(--gray-700);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  text-decoration: none;
  transition: var(--transition);
}

.social-links a:hover {
  background: var(--secondary-color);
  color: var(--accent-color);
  transform: translateY(-2px);
}

.copyright {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid var(--gray-700);
  color: var(--gray-400);
}

/* Modern Responsive Design */
@media (max-width: 1200px) {
  .container {
    max-width: 100%;
    padding: 0 var(--spacing-6);
  }
  
  .hero h1 {
    font-size: 3rem;
  }
  
  .features-grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  }
  
  .products-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
  }
}

@media (max-width: 1024px) {
  .container {
    max-width: 100%;
    padding: 0 var(--spacing-5);
  }
  
  .nav-links {
    gap: var(--spacing-4);
  }
  
  .hero {
    padding: 80px 0;
  }
  
  .hero h1 {
    font-size: 2.8rem;
  }
  
  .features-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
  }
  
  .categories-grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  }
  
  .products-grid {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .hamburger-menu {
    display: flex;
    z-index: var(--z-dropdown);
  }
  
  .main-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transform: translateX(-100%);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
  }
  
  .main-nav.active {
    transform: translateX(0);
  }
  
  .nav-links {
    flex-direction: column;
    gap: var(--spacing-8);
    text-align: center;
  }
  
  .nav-links a {
    font-size: var(--font-size-lg);
    padding: var(--spacing-4) var(--spacing-8);
    border-radius: var(--border-radius-lg);
    transition: all 0.3s ease;
  }
  
  .nav-links a:hover {
    background: var(--primary-color);
    color: white;
    transform: scale(1.05);
  }
  
  header {
    padding: var(--spacing-3) 0;
  }
  
  main {
    margin-top: 70px;
  }
  
  .hero {
    padding: 60px 0;
  }
  
  .hero h1 {
    font-size: 2.5rem;
    line-height: 1.1;
  }
  
  .hero p {
    font-size: 1rem;
    padding: 0 var(--spacing-4);
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-4);
  }
  
  .btn {
    width: 100%;
    max-width: 300px;
    padding: var(--spacing-4) var(--spacing-6);
    font-size: var(--font-size-base);
  }
  
  .features {
    padding: 60px 0;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }
  
  .feature-item {
    padding: 25px;
  }
  
  .feature-item .icon {
    font-size: 2.5rem;
  }
  
  .feature-item h3 {
    font-size: 1.5rem;
  }
  
  .categories-grid {
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 20px;
  }
  
  .category-item {
    padding: 20px 15px;
  }
  
  .category-item img {
    width: 70px;
    height: 70px;
  }
  
  .products-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
  }
  
  .product-card {
    border-radius: 8px;
  }
  
  .product-image {
    height: 200px;
  }
  
  .product-info {
    padding: 20px 16px 16px;
  }
  
  .product-title {
    font-size: 1rem;
  }
  
  .reasons-grid {
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 15px;
  }
  
  .reason-item {
    padding: 15px;
    font-size: var(--font-size-sm);
  }
  
  .footer {
    padding: 40px 0 20px;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 30px;
  }
  
  .footer-col {
    padding: 0 var(--spacing-4);
  }
  
  .social-links {
    justify-content: center;
  }
  
  /* About Page Responsive */
  .about-hero h1 {
    font-size: 2.5rem;
  }
  
  .about-content {
    padding: 30px;
  }
  
  .timeline::before {
    left: 20px;
  }
  
  .timeline-item {
    width: 100%;
    left: 0 !important;
    padding-left: 60px !important;
    padding-right: 0 !important;
    text-align: left !important;
  }
  
  .timeline-item::before {
    left: 10px !important;
    right: auto !important;
  }
  
  .stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  }
  
  .team-grid {
    grid-template-columns: 1fr;
  }
  
  .values-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-3);
  }
  
  header {
    padding: var(--spacing-2) 0;
  }
  
  main {
    margin-top: 60px;
  }
  
  .hero {
    padding: 40px 0;
  }
  
  .hero h1 {
    font-size: 2rem;
    line-height: 1.1;
    margin-bottom: 15px;
  }
  
  .hero p {
    font-size: 0.9rem;
    padding: 0 var(--spacing-3);
    margin-bottom: 25px;
  }
  
  .hero-buttons {
    gap: var(--spacing-3);
  }
  
  .btn {
    padding: var(--spacing-3) var(--spacing-5);
    font-size: var(--font-size-sm);
  }
  
  .features {
    padding: 40px 0;
  }
  
  .features h2 {
    font-size: 2rem;
    margin-bottom: 15px;
  }
  
  .features p {
    font-size: 1rem;
    margin-bottom: 30px;
  }
  
  .feature-item {
    padding: 20px;
  }
  
  .feature-item .icon {
    font-size: 2rem;
    margin-bottom: 15px;
  }
  
  .feature-item h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
  }
  
  .feature-item p {
    font-size: var(--font-size-sm);
  }
  
  .categories-grid {
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 15px;
  }
  
  .category-item {
    padding: 15px 10px;
  }
  
  .category-item img {
    width: 60px;
    height: 60px;
  }
  
  .category-item h4 {
    font-size: 1rem;
    margin-bottom: 8px;
  }
  
  .category-item p {
    font-size: var(--font-size-xs);
  }
  
  .products-grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }
  
  .product-card {
    border-radius: 6px;
  }
  
  .product-image {
    height: 160px;
  }
  
  .product-info {
    padding: 12px;
  }
  
  .product-title {
    font-size: 0.95rem;
    margin-bottom: 8px;
  }
  
  .product-price {
    font-size: 1rem;
  }
  
  .reasons-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  
  .reason-item {
    padding: 12px;
    font-size: var(--font-size-xs);
  }
  
  .footer {
    padding: 30px 0 15px;
  }
  
  .footer-content {
    gap: 25px;
  }
  
  .footer-col h3 {
    font-size: 1.1rem;
    margin-bottom: 15px;
  }
  
  .footer-col ul li {
    margin-bottom: 8px;
  }
  
  .footer-col ul li a {
    font-size: var(--font-size-sm);
  }
  
  .social-links a {
    width: 35px;
    height: 35px;
    font-size: 1rem;
  }
  
  .copyright {
    font-size: var(--font-size-xs);
  }
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-5 { margin-bottom: 3rem; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 3rem; }

.p-0 { padding: 0; }
.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 1rem; }
.p-4 { padding: 1.5rem; }
.p-5 { padding: 3rem; }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

.justify-content-center { justify-content: center; }
.justify-content-between { justify-content: space-between; }
.align-items-center { align-items: center; }

.w-100 { width: 100%; }
.h-100 { height: 100%; }

/* About Page Styles */
.about-page {
  padding: 100px 0 80px;
  background: var(--gray-100);
}

.about-hero {
  background: linear-gradient(135deg, var(--accent-color) 0%, #006bcf 100%);
  color: white;
  padding: 80px 0;
  text-align: center;
  margin-bottom: 60px;
}

.about-hero h1 {
  font-size: 3rem;
  font-weight: 900;
  margin-bottom: 20px;
}

.about-hero p {
  font-size: 1.2rem;
  max-width: 600px;
  margin: 0 auto;
}

.about-content {
  background: white;
  padding: 60px;
  border-radius: 12px;
  box-shadow: var(--box-shadow);
  margin-bottom: 60px;
}

.about-section {
  margin-bottom: 50px;
}

.about-section h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent-color);
  margin-bottom: 30px;
  text-align: center;
}

.about-section p {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--gray-700);
  margin-bottom: 20px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 30px;
  margin: 40px 0;
}

.stat-item {
  text-align: center;
  padding: 30px;
  background: var(--gray-100);
  border-radius: 12px;
  transition: var(--transition);
}

.stat-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--box-shadow);
}

.stat-number {
  font-size: 3rem;
  font-weight: 900;
  color: var(--primary-color);
  margin-bottom: 10px;
}

.stat-label {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent-color);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin: 40px 0;
}

.team-member {
  text-align: center;
  padding: 30px;
  background: white;
  border-radius: 12px;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
}

.team-member:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.member-avatar {
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--phuot-red-light) 100%);
  border-radius: 50%;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: white;
}

.member-name {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent-color);
  margin-bottom: 10px;
}

.member-position {
  color: var(--primary-color);
  font-weight: 600;
  margin-bottom: 15px;
}

.member-description {
  color: var(--gray-600);
  line-height: 1.6;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin: 40px 0;
}

.value-item {
  padding: 30px;
  background: white;
  border-radius: 12px;
  box-shadow: var(--box-shadow);
  text-align: center;
  transition: var(--transition);
}

.value-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.value-icon {
  font-size: 3rem;
  color: var(--primary-color);
  margin-bottom: 20px;
}

.value-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-color);
  margin-bottom: 15px;
}

.value-description {
  color: var(--gray-600);
  line-height: 1.6;
}

.timeline {
  position: relative;
  padding: 40px 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--primary-color);
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
  width: 50%;
}

.timeline-item:nth-child(odd) {
  left: 0;
  padding-right: 40px;
  text-align: right;
}

.timeline-item:nth-child(even) {
  left: 50%;
  padding-left: 40px;
  text-align: left;
}

.timeline-item::before {
  content: '';
  position: absolute;
  top: 20px;
  width: 20px;
  height: 20px;
  background: var(--primary-color);
  border-radius: 50%;
  border: 4px solid white;
  box-shadow: 0 0 0 4px var(--primary-color);
}

.timeline-item:nth-child(odd)::before {
  right: -10px;
}

.timeline-item:nth-child(even)::before {
  left: -10px;
}

.timeline-content {
  background: white;
  padding: 20px;
  border-radius: 8px;
  box-shadow: var(--box-shadow);
}

.timeline-year {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 10px;
}

.timeline-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent-color);
  margin-bottom: 10px;
}

.timeline-description {
  color: var(--gray-600);
  line-height: 1.6;
}

.contact-info {
  background: var(--accent-color);
  color: white;
  padding: 60px;
  border-radius: 12px;
  text-align: center;
}

.contact-info h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 30px;
  color: var(--secondary-color);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.contact-item {
  padding: 30px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  backdrop-filter: blur(10px);
}

.contact-icon {
  font-size: 2.5rem;
  color: var(--secondary-color);
  margin-bottom: 15px;
}

.contact-title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.contact-details {
  color: rgba(255, 255, 255, 0.9);
}

/* Animation Classes */
.fade-in {
  animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.slide-in-left {
  animation: slideInLeft 0.5s ease-out;
}

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-50px); }
  to { opacity: 1; transform: translateX(0); }
}

.slide-in-right {
  animation: slideInRight 0.5s ease-out;
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(50px); }
  to { opacity: 1; transform: translateX(0); }
}

/* Fix Footer Contact Info Icons */
.footer-section .contact-info p {
  display: flex;
  align-items: center;
  margin-bottom: 10px;
  color: #ffffff;
  opacity: 0.9;
}

.footer-section .contact-info i {
  margin-right: 10px;
  font-size: 16px;
  width: 20px;
  text-align: center;
  vertical-align: middle;
}

/* Fix Feature Box Icon Visibility */
.feature-box .feature-icon {
  opacity: 1 !important;
  color: var(--accent-color);
}

/* ===== FIX ALL UI ISSUES ===== */
/* Fix Button Layout Issues */
.btn, .admin-btn {
  display: inline-block;
  padding: 12px 24px;
  margin: 4px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  vertical-align: middle;
  white-space: nowrap;
  box-sizing: border-box;
}

.btn:hover, .admin-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

/* Fix Button Groups */
.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.btn-group .btn {
  margin: 0;
}

/* Fix Form Layout */
.form-group {
  margin-bottom: 20px;
}

.form-control {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 14px;
  transition: all 0.3s ease;
  box-sizing: border-box;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.1);
}

/* Fix Table Layout */
.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 0;
}

.table th,
.table td {
  padding: 12px 15px;
  text-align: left;
  border-bottom: 1px solid #ddd;
  vertical-align: middle;
}

.table th {
  background: #f8f9fa;
  font-weight: 600;
  color: #495057;
}

.table tbody tr:hover {
  background: #f8f9fa;
}

/* Fix Card Layout */
.card {
  background: white;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  margin-bottom: 30px;
  overflow: hidden;
}

.card-header {
  padding: 20px 25px;
  background: #f8f9fa;
  border-bottom: 1px solid #dee2e6;
}

.card-body {
  padding: 25px;
}

.card-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin: 0;
  color: #495057;
}

/* Fix Grid Layout */
.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -15px;
}

.col {
  flex: 1;
  padding: 0 15px;
}

.col-1 { flex: 0 0 8.333333%; }
.col-2 { flex: 0 0 16.666667%; }
.col-3 { flex: 0 0 25%; }
.col-4 { flex: 0 0 33.333333%; }
.col-6 { flex: 0 0 50%; }
.col-8 { flex: 0 0 66.666667%; }
.col-9 { flex: 0 0 75%; }
.col-12 { flex: 0 0 100%; }

/* Fix Alert Layout */
.alert {
  padding: 15px 20px;
  border-radius: 8px;
  margin-bottom: 20px;
  border-left: 4px solid;
}

.alert-success {
  background: #d4edda;
  color: #155724;
  border-left-color: #28a745;
}

.alert-danger {
  background: #f8d7da;
  color: #721c24;
  border-left-color: #dc3545;
}

.alert-warning {
  background: #fff3cd;
  color: #856404;
  border-left-color: #ffc107;
}

.alert-info {
  background: #d1ecf1;
  color: #0c5460;
  border-left-color: #17a2b8;
}

/* Fix Modal Layout */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
}

.modal.show {
  display: flex;
}

.modal-content {
  background: white;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.3);
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  padding: 20px 25px;
  border-bottom: 1px solid #dee2e6;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-body {
  padding: 25px;
}

.modal-footer {
  padding: 20px 25px;
  border-top: 1px solid #dee2e6;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* Fix Pagination */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 5px;
  margin-top: 20px;
}

.pagination a,
.pagination span {
  display: inline-block;
  padding: 8px 12px;
  border: 1px solid #ddd;
  color: #495057;
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.pagination a:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.pagination .current {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

/* Fix Status Badges */
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
}

.badge-success {
  background: #d4edda;
  color: #155724;
}

.badge-danger {
  background: #f8d7da;
  color: #721c24;
}

.badge-warning {
  background: #fff3cd;
  color: #856404;
}

.badge-info {
  background: #d1ecf1;
  color: #0c5460;
}

/* New Product Card Styles */
.product-card {
  position: relative;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

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

.product-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
  border-radius: 8px;
}

.product-card:hover .product-overlay {
  opacity: 1;
}

.btn-add-cart {
  background: var(--primary-color);
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: 25px;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s ease;
}

.btn-add-cart:hover {
  background: var(--phuot-red-light);
  transform: scale(1.05);
}

.product-category {
  font-size: 12px;
  color: var(--gray-600);
  margin: 5px 0;
  text-transform: uppercase;
  font-weight: 500;
}

.sale-price {
  color: var(--primary-color);
  font-weight: 700;
  font-size: 16px;
}

.original-price {
  color: var(--gray-500);
  text-decoration: line-through;
  font-size: 14px;
  margin-left: 8px;
}

.normal-price {
  color: var(--gray-800);
  font-weight: 600;
  font-size: 16px;
}

.stock-warning {
  color: var(--warning-color);
  font-size: 12px;
  font-weight: 500;
  margin-top: 5px;
}

.stock-out {
  color: var(--danger-color);
  font-size: 12px;
  font-weight: 500;
  margin-top: 5px;
}

/* Category Items Enhancement */
.category-item {
  cursor: pointer;
  transition: all 0.3s ease;
}

.category-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

/* Cart Count Animation */
@keyframes bounce {
  0%, 20%, 53%, 80%, 100% {
    transform: translate3d(0, 0, 0);
  }
  40%, 43% {
    transform: translate3d(0, -8px, 0);
  }
  70% {
    transform: translate3d(0, -4px, 0);
  }
  90% {
    transform: translate3d(0, -2px, 0);
  }
}

.cart-count {
  animation: bounce 0.5s ease;
}

/* Enhanced Features Grid */
.features-grid .feature-item {
  transition: all 0.3s ease;
  cursor: default;
}

.features-grid .feature-item:hover {
  transform: translateY(-5px);
  background: linear-gradient(135deg, rgba(220, 38, 38, 0.05) 0%, rgba(255, 212, 59, 0.05) 100%);
}

/* Fix Responsive Issues */
@media (max-width: 768px) {
  .btn-group {
    flex-direction: column;
    align-items: stretch;
  }
  
  .btn-group .btn {
    margin-bottom: 8px;
  }
  
  .row {
    flex-direction: column;
  }
  
  .col {
    flex: none;
    width: 100%;
  }
  
  .table-responsive {
    font-size: 14px;
  }
  
  .modal-content {
    width: 95%;
    margin: 20px;
  }
}

/* ==================== ENHANCED HERO SECTION ==================== */
.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--accent-color) 0%, #006bcf 100%);
  z-index: 1;
}

.hero-particles {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.05)"/><circle cx="10" cy="60" r="0.5" fill="rgba(255,255,255,0.05)"/><circle cx="90" cy="40" r="0.5" fill="rgba(255,255,255,0.05)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  opacity: 0.3;
  animation: float 20s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

.hero-title {
  font-size: 2.8rem;
  font-weight: 800;
  margin-bottom: 20px;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
  background: linear-gradient(135deg, #ffffff 0%, #f0f9ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.1rem;
  margin-bottom: 30px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  opacity: 0.95;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--spacing-6);
  margin: var(--spacing-6) 0;
  flex-wrap: wrap;
}

.hero-stats .stat-item {
  text-align: center;
  background: rgba(255, 255, 255, 0.1);
  padding: var(--spacing-3) var(--spacing-5);
  border-radius: var(--border-radius-lg);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-stats .stat-number {
  display: block;
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--secondary-color);
  margin-bottom: var(--spacing-1);
}

.hero-stats .stat-label {
  font-size: var(--font-size-sm);
  opacity: 0.9;
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.scroll-arrow {
  animation: bounce 2s infinite;
  color: white;
  font-size: 2rem;
  opacity: 0.8;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  60% {
    transform: translateY(-5px);
  }
}

/* ==================== ENHANCED SECTIONS ==================== */
.section-header {
  text-align: center;
  margin-bottom: var(--spacing-12);
}

.section-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--accent-color);
  margin-bottom: var(--spacing-4);
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  border-radius: 2px;
}

.section-description {
  font-size: var(--font-size-base);
  color: var(--gray-600);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

.section-actions {
  text-align: center;
  margin-top: var(--spacing-10);
}

/* ==================== ENHANCED FEATURES ==================== */
.feature-item {
  position: relative;
  overflow: hidden;
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 20px;
  color: var(--primary-color);
  opacity: 1;
  transition: var(--transition);
}

.feature-item:hover .feature-icon {
  transform: scale(1.1);
  color: var(--secondary-color);
}

.feature-number {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: var(--font-size-2xl);
  font-weight: 900;
  color: var(--primary-color);
  opacity: 0.1;
  z-index: 1;
}

/* ==================== ENHANCED PRODUCT CARDS ==================== */
.product-badges {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 3;
}

.badge {
  display: inline-block;
  padding: 4px 8px;
  border-radius: 12px;
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  margin-right: 5px;
}

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

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

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

/* ==================== ENHANCED REASONS GRID ==================== */
.reason-item {
  text-align: center;
  padding: 24px 20px;
  background: white;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 2px solid transparent;
}

.reason-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-color);
}

.reason-icon {
  font-size: 2.2rem;
  color: var(--primary-color);
  margin-bottom: 12px;
}

.reason-item h4 {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--accent-color);
  margin-bottom: 8px;
}

.reason-item p {
  color: var(--gray-600);
  font-size: var(--font-size-sm);
}

/* ==================== NEWSLETTER SECTION ==================== */
.newsletter {
  background: linear-gradient(135deg, var(--accent-color) 0%, #006bcf 100%);
  color: white;
  padding: 80px 0;
}

.newsletter-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-8);
  max-width: 1000px;
  margin: 0 auto;
}

.newsletter-text h3 {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  margin-bottom: var(--spacing-3);
}

.newsletter-text p {
  font-size: var(--font-size-lg);
  opacity: 0.9;
}

.newsletter-form {
  flex: 1;
  max-width: 400px;
}

.newsletter-form .form-group {
  display: flex;
  gap: var(--spacing-3);
  margin: 0;
}

.newsletter-form input {
  flex: 1;
  padding: var(--spacing-4) var(--spacing-5);
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--border-radius-lg);
  background: rgba(255, 255, 255, 0.1);
  color: white;
  font-size: var(--font-size-base);
  backdrop-filter: blur(10px);
}

.newsletter-form input::placeholder {
  color: rgba(255, 255, 255, 0.7);
}

.newsletter-form input:focus {
  outline: none;
  border-color: var(--secondary-color);
  background: rgba(255, 255, 255, 0.2);
}

.newsletter-form .btn {
  white-space: nowrap;
  padding: var(--spacing-4) var(--spacing-6);
}

/* ==================== ENHANCED FOOTER ==================== */
.footer-bottom {
  margin-top: var(--spacing-8);
  padding-top: var(--spacing-6);
  border-top: 1px solid var(--gray-700);
}

.footer-bottom-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-6);
}

.payment-methods {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
}

.payment-methods span {
  font-size: var(--font-size-sm);
  opacity: 0.8;
}

.payment-icons {
  display: flex;
  gap: var(--spacing-2);
}

.payment-icons i {
  font-size: 1.5rem;
  opacity: 0.7;
  transition: var(--transition);
}

.payment-icons i:hover {
  opacity: 1;
  color: var(--secondary-color);
}

/* ==================== USER MENU ==================== */
.user-menu {
  position: relative;
}

.user-avatar {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-2) var(--spacing-3);
  border-radius: var(--border-radius-lg);
  background: var(--gray-100);
  color: var(--gray-700);
  text-decoration: none;
  transition: var(--transition);
}

.user-avatar:hover {
  background: var(--primary-color);
  color: white;
}

.user-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  background: white;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-2);
  min-width: 150px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: var(--transition);
  z-index: var(--z-dropdown);
}

.user-menu:hover .user-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.user-dropdown a {
  display: block;
  padding: var(--spacing-2) var(--spacing-3);
  color: var(--gray-700);
  text-decoration: none;
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.user-dropdown a:hover {
  background: var(--gray-100);
  color: var(--primary-color);
}

/* ==================== MOBILE NAVIGATION OVERLAY ==================== */
.mobile-nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: var(--z-modal-backdrop);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

body.nav-open .mobile-nav-overlay {
  opacity: 1;
  visibility: visible;
}

/* ==================== BACK TO TOP BUTTON ==================== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition);
  z-index: var(--z-fixed);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: var(--shadow-lg);
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
}

/* ==================== LOADING OVERLAY ==================== */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.9);
  z-index: var(--z-modal);
  display: none;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(5px);
}

.loading-spinner {
  text-align: center;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--gray-200);
  border-top: 4px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto var(--spacing-4);
}

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

/* ==================== NOTIFICATION SYSTEM ==================== */
.notification-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: var(--z-tooltip);
}

.notification {
  background: white;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-xl);
  padding: var(--spacing-4) var(--spacing-5);
  margin-bottom: var(--spacing-3);
  min-width: 300px;
  max-width: 400px;
  transform: translateX(100%);
  animation: slideInNotification 0.3s ease forwards;
  border-left: 4px solid;
}

.notification-success {
  border-left-color: var(--success-color);
}

.notification-error {
  border-left-color: var(--error-color);
}

.notification-info {
  border-left-color: var(--info-color);
}

.notification-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
}

.notification-content i {
  font-size: 1.2rem;
}

.notification-success .notification-content i {
  color: var(--success-color);
}

.notification-error .notification-content i {
  color: var(--error-color);
}

.notification-info .notification-content i {
  color: var(--info-color);
}

.notification-close {
  position: absolute;
  top: 10px;
  right: 10px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--gray-500);
  font-size: 1rem;
}

@keyframes slideInNotification {
  to {
    transform: translateX(0);
  }
}

/* ==================== ANIMATION CLASSES ==================== */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

.animate-on-scroll.animate {
  opacity: 1;
  transform: translateY(0);
}

.fade-in {
  animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.slide-in-left {
  animation: slideInLeft 0.5s ease-out;
}

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-50px); }
  to { opacity: 1; transform: translateX(0); }
}

.slide-in-right {
  animation: slideInRight 0.5s ease-out;
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(50px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ==================== ENHANCED RESPONSIVE DESIGN ==================== */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-stats {
    gap: var(--spacing-4);
  }
  
  .hero-stats .stat-item {
    padding: var(--spacing-3) var(--spacing-4);
  }
  
  .newsletter-content {
    flex-direction: column;
    text-align: center;
  }
  
  .newsletter-form .form-group {
    flex-direction: column;
  }
  
  .footer-bottom-content {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-4);
  }
  
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 45px;
    height: 45px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .section-title {
    font-size: var(--font-size-2xl);
  }
  
  .hero-stats {
    flex-direction: column;
    align-items: center;
  }
  
  .notification {
    min-width: 280px;
    margin: 0 var(--spacing-3) var(--spacing-3) 0;
  }
}

/* ==================== LOGIN/REGISTER STYLES ==================== */
.login-page {
  min-height: 80vh;
  padding: var(--spacing-20) 0;
  background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
}

.login-hero {
  text-align: center;
  margin-bottom: var(--spacing-16);
}

.login-hero h1 {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  color: var(--accent-color);
  margin-bottom: var(--spacing-4);
  background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.login-hero p {
  font-size: var(--font-size-lg);
  color: var(--gray-600);
  max-width: 500px;
  margin: 0 auto;
}

.auth-container {
  max-width: 450px;
  margin: 0 auto;
  background: var(--white);
  border-radius: var(--border-radius-2xl);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  border: 1px solid var(--gray-200);
}

.auth-tabs {
  display: flex;
  background: var(--gray-100);
}

.tab-btn {
  flex: 1;
  padding: var(--spacing-5) var(--spacing-6);
  background: transparent;
  border: none;
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--gray-600);
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}

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

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
}

.auth-form {
  display: none;
  padding: var(--spacing-10) var(--spacing-8);
}

.auth-form.active {
  display: block;
  animation: fadeInUp 0.3s ease;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.form-group {
  margin-bottom: var(--spacing-6);
}

.form-group label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: var(--spacing-2);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="tel"] {
  width: 100%;
  padding: var(--spacing-4) var(--spacing-5);
  border: 2px solid var(--gray-200);
  border-radius: var(--border-radius-lg);
  font-size: var(--font-size-base);
  transition: var(--transition);
  background: var(--white);
}

.form-group input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.checkbox-label {
  display: flex !important;
  align-items: center;
  cursor: pointer;
  font-size: var(--font-size-sm);
  color: var(--gray-600);
}

.checkbox-label input[type="checkbox"] {
  margin-right: var(--spacing-3);
  width: 18px;
  height: 18px;
  accent-color: var(--primary-color);
}

.auth-links {
  text-align: center;
  margin-top: var(--spacing-6);
}

.forgot-password {
  color: var(--primary-color);
  font-size: var(--font-size-sm);
  text-decoration: none;
  transition: var(--transition);
}

.forgot-password:hover {
  text-decoration: underline;
}

.alert {
  padding: var(--spacing-4) var(--spacing-5);
  border-radius: var(--border-radius-lg);
  margin-bottom: var(--spacing-6);
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.alert-error {
  background: #fef2f2;
  color: #dc2626;
  border: 1px solid #fecaca;
}

.alert-success {
  background: #f0fdf4;
  color: #166534;
  border: 1px solid #bbf7d0;
}

.auth-benefits {
  margin-top: var(--spacing-16);
  text-align: center;
}

.auth-benefits h3 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--accent-color);
  margin-bottom: var(--spacing-8);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-8);
  max-width: 800px;
  margin: 0 auto;
}

.benefit-item {
  text-align: center;
  padding: var(--spacing-8);
}

.benefit-item i {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: var(--spacing-4);
}

.benefit-item h4 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--accent-color);
  margin-bottom: var(--spacing-2);
}

.benefit-item p {
  font-size: var(--font-size-sm);
  color: var(--gray-600);
}

/* ==================== PRODUCT DETAIL STYLES ==================== */
.product-detail-page {
  background: var(--white);
  min-height: 100vh;
  padding-top: 120px;
}

.product-detail-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-16);
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-12) var(--spacing-6);
}

.product-gallery {
  position: sticky;
  top: 120px;
  height: fit-content;
}

.product-main-image {
  width: 100%;
  height: 500px;
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  margin-bottom: var(--spacing-6);
  background: var(--gray-50);
  position: relative;
  cursor: zoom-in;
}

.product-main-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

.product-main-image:hover img {
  transform: scale(1.05);
}

.image-zoom-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.95);
  z-index: var(--z-modal);
  display: none;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
}

.image-zoom-overlay.active {
  display: flex;
}

.zoomed-image {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--border-radius-lg);
}

.thumbnail-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
  gap: var(--spacing-3);
}

.thumbnail-item {
  aspect-ratio: 1;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  background: var(--gray-100);
}

.thumbnail-item.active {
  border-color: var(--primary-color);
}

.thumbnail-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.thumbnail-item:hover img {
  transform: scale(1.1);
}

.product-info {
  padding: var(--spacing-8) 0;
}

.product-breadcrumb {
  margin-bottom: var(--spacing-6);
  font-size: var(--font-size-sm);
  color: var(--gray-600);
}

.product-breadcrumb a {
  color: var(--primary-color);
  text-decoration: none;
}

.product-breadcrumb a:hover {
  text-decoration: underline;
}

.product-title {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--gray-900);
  margin-bottom: var(--spacing-4);
  line-height: 1.2;
}

.product-price-container {
  margin-bottom: var(--spacing-8);
}

.product-price {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--primary-color);
}

.product-price.sale {
  color: var(--primary-color);
}

.original-price {
  font-size: var(--font-size-lg);
  color: var(--gray-500);
  text-decoration: line-through;
  margin-left: var(--spacing-3);
}

.product-description {
  color: var(--gray-700);
  line-height: 1.7;
  margin-bottom: var(--spacing-8);
  font-size: var(--font-size-base);
}

.product-meta {
  background: var(--gray-50);
  padding: var(--spacing-6);
  border-radius: var(--border-radius-lg);
  margin-bottom: var(--spacing-8);
}

.meta-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-3) 0;
  border-bottom: 1px solid var(--gray-200);
}

.meta-item:last-child {
  border-bottom: none;
}

.meta-label {
  font-weight: 600;
  color: var(--gray-700);
}

.meta-value {
  color: var(--gray-600);
}

.quantity-selector {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-8);
}

.quantity-controls {
  display: flex;
  align-items: center;
  border: 2px solid var(--gray-200);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
}

.quantity-btn {
  width: 40px;
  height: 40px;
  background: var(--gray-100);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  color: var(--gray-600);
}

.quantity-btn:hover {
  background: var(--gray-200);
  color: var(--gray-800);
}

.quantity-input {
  width: 60px;
  height: 40px;
  border: none;
  text-align: center;
  font-weight: 600;
  background: var(--white);
}

.product-actions {
  display: flex;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-8);
}

.add-to-cart-btn {
  flex: 1;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  color: white;
  border: none;
  padding: var(--spacing-5) var(--spacing-8);
  border-radius: var(--border-radius-lg);
  font-size: var(--font-size-lg);
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
}

.add-to-cart-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.wishlist-btn {
  width: 60px;
  height: 60px;
  border: 2px solid var(--gray-300);
  background: var(--white);
  border-radius: var(--border-radius-lg);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  color: var(--gray-600);
}

.wishlist-btn:hover,
.wishlist-btn.active {
  border-color: var(--primary-color);
  color: var(--primary-color);
  background: rgba(220, 38, 38, 0.05);
}

.product-tabs {
  margin-top: var(--spacing-12);
  background: var(--white);
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.tab-header {
  display: flex;
  border-bottom: 1px solid var(--gray-200);
}

.tab-header button {
  flex: 1;
  padding: var(--spacing-5) var(--spacing-6);
  background: transparent;
  border: none;
  cursor: pointer;
  font-weight: 600;
  color: var(--gray-600);
  transition: var(--transition);
  position: relative;
}

.tab-header button.active {
  color: var(--primary-color);
  background: var(--gray-50);
}

.tab-header button.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--primary-color);
}

.tab-content {
  padding: var(--spacing-8);
  color: var(--gray-700);
  line-height: 1.7;
}

.related-products {
  margin-top: var(--spacing-16);
  padding: var(--spacing-12) var(--spacing-6);
  background: var(--gray-50);
}

.related-products h3 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--accent-color);
  text-align: center;
  margin-bottom: var(--spacing-10);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-8);
  max-width: 1400px;
  margin: 0 auto;
}

.related-product-card {
  background: var(--white);
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  cursor: pointer;
}

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

.related-product-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.related-product-info {
  padding: var(--spacing-6);
}

.related-product-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: var(--spacing-2);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-product-price {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--primary-color);
}

/* Responsive Design for Product Detail */
@media (max-width: 1024px) {
  .product-detail-container {
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
    padding: var(--spacing-8) var(--spacing-4);
  }
  
  .product-gallery {
    position: static;
  }
  
  .product-main-image {
    height: 400px;
  }
}

@media (max-width: 768px) {
  .product-detail-page {
    padding-top: 100px;
  }
  
  .product-detail-container {
    padding: var(--spacing-6) var(--spacing-4);
  }
  
  .product-main-image {
    height: 300px;
  }
  
  .product-title {
    font-size: var(--font-size-2xl);
  }
  
  .product-actions {
    flex-direction: column;
  }
  
  .wishlist-btn {
    width: 100%;
    height: 50px;
  }
  
  .tab-header {
    flex-wrap: wrap;
  }
  
  .tab-header button {
    flex: 1 1 50%;
  }
}