/* Complete ShopEasy CSS - Modern & Clean Design */

/* Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  line-height: 1.6;
  color: #1a202c;
  background-color: #f7fafc;
  overflow-x: hidden;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Utilities */
.hidden {
  display: none !important;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  box-shadow: 0 4px 14px 0 rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.btn-outline {
  background: white;
  color: #667eea;
  border: 2px solid #667eea;
}

.btn-outline:hover {
  background: #667eea;
  color: white;
}

.btn-full {
  width: 100%;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 16px;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 12px;
}

/* Navigation */
.navbar {
  background: white;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  gap: 20px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 24px;
  font-weight: 800;
  color: #667eea;
  text-decoration: none;
}

.logo-icon {
  font-size: 28px;
}

.search-container {
  flex: 1;
  max-width: 400px;
  display: flex;
  position: relative;
}

.search-input {
  flex: 1;
  padding: 12px 16px;
  border: 2px solid #e2e8f0;
  border-right: none;
  border-radius: 8px 0 0 8px;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s ease;
}

.search-input:focus {
  border-color: #667eea;
}

.search-btn {
  padding: 12px 16px;
  background: #667eea;
  color: white;
  border: none;
  border-radius: 0 8px 8px 0;
  cursor: pointer;
  font-size: 16px;
  transition: background-color 0.2s ease;
}

.search-btn:hover {
  background: #5a67d8;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  color: #4a5568;
  text-decoration: none;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.nav-link:hover {
  color: #667eea;
  background: rgba(102, 126, 234, 0.1);
}

.nav-link.active {
  color: white;
  background: #667eea;
}

.user-welcome {
  color: #718096;
  font-size: 14px;
  margin-right: 8px;
}

.btn-logout {
  background: none;
  border: none;
  color: #e53e3e;
  font-weight: 500;
  cursor: pointer;
  padding: 8px 16px;
  border-radius: 6px;
  transition: background-color 0.2s ease;
}

.btn-logout:hover {
  background: rgba(229, 62, 62, 0.1);
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="%23ffffff" fill-opacity="0.05"><circle cx="30" cy="30" r="4"/></g></svg>') repeat;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-text h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero-text p {
  font-size: 20px;
  opacity: 0.9;
  margin-bottom: 40px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.hero-image {
  text-align: center;
}

.hero-image img {
  max-width: 100%;
  height: auto;
  border-radius: 20px;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
}

/* Sections */
.section-title {
  font-size: 36px;
  font-weight: 800;
  text-align: center;
  margin-bottom: 60px;
  color: #2d3748;
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 2px;
}

/* Categories */
.categories-section {
  padding: 80px 0;
  background: white;
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 30px;
  max-width: 1000px;
  margin: 0 auto;
}

.category-card {
  background: white;
  padding: 40px 20px;
  border-radius: 16px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid #e2e8f0;
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.category-card:hover::before {
  opacity: 1;
}

.category-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  border-color: #667eea;
}

.category-icon {
  font-size: 48px;
  margin-bottom: 20px;
  display: block;
}

.category-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
  color: #2d3748;
  position: relative;
  z-index: 2;
}

.category-card p {
  color: #718096;
  font-size: 14px;
  position: relative;
  z-index: 2;
}

/* Products */
.featured-products,
.products-section {
  padding: 80px 0;
  background: #f7fafc;
}

.filters {
  display: flex;
  gap: 20px;
  margin-bottom: 40px;
  justify-content: center;
  flex-wrap: wrap;
}

.filter-select {
  padding: 12px 16px;
  border: 2px solid #e2e8f0;
  border-radius: 8px;
  background: white;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  min-width: 160px;
  transition: border-color 0.2s ease;
}

.filter-select:focus {
  outline: none;
  border-color: #667eea;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 30px;
  margin-bottom: 60px;
}

.product-card {
  background: white;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid #e2e8f0;
  position: relative;
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.product-image {
  position: relative;
  width: 100%;
  height: 250px;
  overflow: hidden;
  background: #f7fafc;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

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

/* Image placeholder that doesn't cause network requests */
.product-image-placeholder {
  width: 100%;
  height: 250px;
  background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #a0aec0;
  font-size: 16px;
  font-weight: 600;
  text-align: center;
}

.image-placeholder {
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
  border: 2px dashed #cbd5e0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #a0aec0;
  font-size: 12px;
  font-weight: 600;
  text-align: center;
  border-radius: 8px;
}

.discount-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: #e53e3e;
  color: white;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  z-index: 3;
}

.product-info {
  padding: 24px;
}

.product-name {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  color: #2d3748;
  line-height: 1.4;
}

.product-brand {
  color: #718096;
  font-size: 14px;
  margin-bottom: 12px;
  font-weight: 500;
}

.product-rating {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}

.rating-stars {
  color: #ffd700;
  font-size: 14px;
}

.rating-text {
  color: #718096;
  font-size: 13px;
}

.product-price {
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.current-price {
  font-size: 24px;
  font-weight: 800;
  color: #667eea;
}

.original-price {
  font-size: 16px;
  color: #a0aec0;
  text-decoration: line-through;
  font-weight: 500;
}

.product-actions {
  display: flex;
  gap: 12px;
}

.product-actions .btn {
  flex: 1;
  padding: 12px;
  font-size: 14px;
}

/* Features */
.features {
  padding: 80px 0;
  background: white;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
}

.feature-card {
  text-align: center;
  padding: 40px 30px;
  background: #f7fafc;
  border-radius: 16px;
  border: 1px solid #e2e8f0;
  transition: all 0.3s ease;
}

.feature-card:hover {
  background: white;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transform: translateY(-4px);
}

.feature-icon {
  font-size: 48px;
  margin-bottom: 20px;
  display: block;
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 16px;
  color: #2d3748;
}

.feature-card p {
  color: #718096;
  line-height: 1.6;
}

/* Auth Pages */
.main-content {
  min-height: calc(100vh - 200px);
  display: flex;
  align-items: center;
  padding: 40px 0;
}

.auth-container {
  max-width: 500px;
  margin: 0 auto;
  padding: 48px;
  background: white;
  border-radius: 20px;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.auth-header {
  text-align: center;
  margin-bottom: 40px;
}

.auth-header h1 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 12px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.auth-header p {
  color: #718096;
  font-size: 16px;
}

.demo-notice {
  background: linear-gradient(135deg, #fff7cd 0%, #fef3c7 100%);
  border: 2px solid #f59e0b;
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 32px;
  text-align: center;
}

.demo-notice h4 {
  color: #92400e;
  margin-bottom: 8px;
  font-weight: 700;
}

.demo-notice p {
  color: #92400e;
  margin: 0;
  font-size: 14px;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-weight: 600;
  color: #2d3748;
  font-size: 14px;
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 14px 16px;
  border: 2px solid #e2e8f0;
  border-radius: 10px;
  font-size: 16px;
  transition: all 0.2s ease;
  background: #fafafa;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #667eea;
  background: white;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-help {
  font-size: 12px;
  color: #718096;
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
  font-size: 14px;
  line-height: 1.5;
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  border: 2px solid #cbd5e0;
  border-radius: 4px;
  cursor: pointer;
  margin: 0;
  appearance: none;
  background: white;
  position: relative;
  transition: all 0.2s ease;
}

.checkbox-label input[type="checkbox"]:checked {
  background: #667eea;
  border-color: #667eea;
}

.checkbox-label input[type="checkbox"]:checked::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  font-size: 12px;
  font-weight: bold;
}

.password-strength {
  font-size: 12px;
  font-weight: 600;
  margin-top: 8px;
  padding: 6px 12px;
  border-radius: 6px;
  background: #f7fafc;
  border-left: 4px solid #cbd5e0;
  transition: all 0.3s ease;
}

.password-strength.strong {
  background: #f0fff4;
  border-left-color: #38a169;
  color: #38a169;
}

.password-strength.good {
  background: #f0fff4;
  border-left-color: #68d391;
  color: #68d391;
}

.password-strength.fair {
  background: #fffbeb;
  border-left-color: #ed8936;
  color: #ed8936;
}

.password-strength.weak {
  background: #fff5f5;
  border-left-color: #fc8181;
  color: #fc8181;
}

/* Cart */
.cart-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
  margin-top: 40px;
}

.cart-item {
  background: white;
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 20px;
  display: flex;
  gap: 20px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  border: 1px solid #e2e8f0;
}

.cart-item-image {
  flex-shrink: 0;
  width: 120px;
  height: 120px;
  border-radius: 12px;
  overflow: hidden;
  background: #f7fafc;
}

.cart-item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cart-item-details {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.item-name {
  font-size: 18px;
  font-weight: 700;
  color: #2d3748;
  margin: 0;
  line-height: 1.3;
}

.item-brand {
  color: #718096;
  font-size: 14px;
  margin: 0;
}

.item-price {
  font-size: 20px;
  font-weight: 700;
  color: #667eea;
}

.summary-card {
  background: white;
  border-radius: 16px;
  padding: 32px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  border: 1px solid #e2e8f0;
  position: sticky;
  top: 100px;
  height: fit-content;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid #edf2f7;
}

.total-row {
  font-size: 18px;
  font-weight: 800;
  padding: 20px 0;
  border-top: 2px solid #e2e8f0;
  margin-top: 16px;
}

/* Empty States */
.empty-state {
  text-align: center;
  padding: 80px 20px;
  grid-column: 1 / -1;
}

.empty-icon {
  font-size: 80px;
  margin-bottom: 24px;
  opacity: 0.6;
}

.empty-state h2,
.empty-state h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 16px;
  color: #2d3748;
}

.empty-state p {
  color: #718096;
  margin-bottom: 32px;
  font-size: 16px;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 10000;
}

.toast {
  background: #2d3748;
  color: white;
  padding: 16px 20px;
  border-radius: 12px;
  margin-bottom: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-width: 320px;
  animation: slideIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  backdrop-filter: blur(10px);
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.toast-success { background: linear-gradient(135deg, #48bb78 0%, #38a169 100%); }
.toast-error { background: linear-gradient(135deg, #f56565 0%, #e53e3e 100%); }
.toast-warning { background: linear-gradient(135deg, #ed8936 0%, #dd6b20 100%); }
.toast-info { background: linear-gradient(135deg, #4299e1 0%, #3182ce 100%); }

.toast-close {
  background: none;
  border: none;
  color: inherit;
  font-size: 18px;
  cursor: pointer;
  margin-left: 16px;
  opacity: 0.8;
}

.toast-close:hover {
  opacity: 1;
}

/* Loading */
.loading-indicator {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0, 0, 0, 0.9);
  color: white;
  padding: 24px 32px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  gap: 16px;
  z-index: 10000;
  backdrop-filter: blur(10px);
}

.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Footer */
.footer {
  background: #2d3748;
  color: white;
  padding: 60px 0 30px;
  margin-top: 80px;
}

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

.footer-section h3,
.footer-section h4 {
  margin-bottom: 20px;
  color: white;
  font-weight: 700;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 12px;
}

.footer-section ul li a {
  color: #a0aec0;
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-section ul li a:hover {
  color: white;
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid #4a5568;
  color: #a0aec0;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }
  
  .hero-text h1 {
    font-size: 36px;
  }
  
  .categories-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
  }
  
  .products-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
  }
  
  .cart-layout {
    grid-template-columns: 1fr;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .nav-container {
    flex-direction: column;
    gap: 16px;
  }
  
  .search-container {
    max-width: none;
    width: 100%;
  }
  
  .nav-links {
    justify-content: center;
    flex-wrap: wrap;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }
  
  .hero {
    padding: 60px 0;
  }
  
  .hero-text h1 {
    font-size: 28px;
  }
  
  .hero-text p {
    font-size: 18px;
  }
  
  .auth-container {
    margin: 20px 16px;
    padding: 32px 24px;
  }
  
  .cart-item {
    flex-direction: column;
    gap: 16px;
  }
  
  .cart-item-image {
    align-self: center;
  }
  
  .toast {
    min-width: auto;
    width: calc(100vw - 40px);
  }
}

/* Page Headers */
.page-header {
  text-align: center;
  margin-bottom: 60px;
  padding: 40px 0;
}

.page-header h1 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 16px;
  color: #2d3748;
}

.page-subtitle {
  font-size: 18px;
  color: #718096;
  margin: 0;
}

/* Pagination */
.pagination-container {
  text-align: center;
  margin-top: 60px;
}

.pagination {
  display: inline-flex;
  gap: 8px;
}

.pagination-btn {
  padding: 12px 16px;
  border: 2px solid #e2e8f0;
  background: white;
  color: #4a5568;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.2s ease;
}

.pagination-btn:hover {
  border-color: #667eea;
  color: #667eea;
}

.pagination-btn.active {
  background: #667eea;
  color: white;
  border-color: #667eea;
}

/* Checkout Page Styles */
.checkout-container {
  display: flex;
  flex-direction: row;
  gap: 2rem;
  padding: 2rem;
  max-width: 1200px;
  margin: auto;
}

.cart-items, .payment-section {
  flex: 1;
  background: #fff;
  padding: 1rem;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.items-list {
  max-height: 300px;
  overflow-y: auto;
  margin-bottom: 1rem;
}

.order-total {
  font-weight: 700;
  font-size: 1.2rem;
  display: flex;
  justify-content: space-between;
}

@media(max-width: 768px){
  .checkout-container {
    flex-direction: column;
  }
}

@import url('tracking-modal-styles.css');