/* Global Styles */
:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --text-color: #1f2937;
    --light-gray: #f3f4f6;
    --border-color: #e5e7eb;
  }
  
  * {
    margin: 0;
    padding: 0;
    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);
  }
  
  /* Header & Navigation */
  header {
    background-color: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  }
  
  nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
  }
  
  nav ul {
    display: flex;
    gap: 2rem;
    list-style: none;
  }
  
  nav a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s;
  }
  
  nav a:hover,
  nav a.active {
    color: var(--primary-color);
  }
  
  /* Main Content */
  main {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
  }
  
  /* Banner Slider */
  .banner-slider {
    margin-bottom: 3rem;
    border-radius: 0.5rem;
    overflow: hidden;
  }
  
  .swiper-slide {
    position: relative;
    height: 500px;
  }
  
  .swiper-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  
  .slide-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 2rem;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
    color: white;
  }
  
  .slide-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
  }
  
  /* Features Section */
  .features {
    padding: 4rem 0;
    text-align: center;
  }
  
  .features h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
  }
  
  .features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
  }
  
  .feature {
    padding: 2rem;
    background: white;
    border-radius: 0.5rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
  }
  
  .feature:hover {
    transform: translateY(-5px);
  }
  
  .feature svg {
    width: 48px;
    height: 48px;
    margin-bottom: 1rem;
    color: var(--primary-color);
  }
  
  /* Products Grid */
  .products {
    padding: 4rem 0;
  }
  
  .products h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    text-align: center;
  }
  
  .products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    padding: 1rem;
  }
  
  .product-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
  }
  
  .product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 12px rgba(0, 0, 0, 0.15);
  }
  
  .product-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
  }
  
  .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);
  }
  
  .product-info {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
  }
  
  .product-info h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
  }
  
  .product-info .description {
    color: #666;
    margin-bottom: 1rem;
    flex-grow: 1;
  }
  
  .product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    padding: 0 1.5rem 1.5rem;
  }
  
  .product-footer .price {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--primary-color);
    margin: 0;
  }
  
  .product-footer .btn {
    padding: 0.5rem 1rem;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    transition: background-color 0.3s ease;
  }
  
  /* Buttons */
  .btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 0.375rem;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s;
  }
  
  .btn:hover {
    background-color: var(--secondary-color);
  }
  
  /* Tabs */
  .tabs {
    margin: 2rem 0;
  }
  
  .tab-headers {
    display: flex;
    gap: 1rem;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 1rem;
  }
  
  .tab-btn {
    padding: 0.75rem 1.5rem;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-color);
  }
  
  .tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
  }
  
  .tab-content {
    display: none;
    padding: 1rem 0;
  }
  
  .tab-content.active {
    display: block;
  }
  
  /* Contact Page */
  .contact-page {
    max-width: 800px;
    margin: 0 auto;
  }
  
  .contact-header {
    text-align: center;
    margin-bottom: 3rem;
  }
  
  .contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
  
  .form-group {
    margin-bottom: 1.5rem;
  }
  
  .form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
  }
  
  .form-group input,
  .form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
  }
  
  .info-card {
    padding: 1.5rem;
    background: white;
    border-radius: 0.5rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    margin-bottom: 1.5rem;
  }
  
  .info-card svg {
    color: var(--primary-color);
    margin-bottom: 1rem;
  }
  
  /* Product Details Page */
  .product-details {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
  
  .product-header {
    margin-bottom: 1.5rem;
  }
  
  .product-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-color);
  }
  
  .product-meta {
    display: flex;
    gap: 1.5rem;
    color: #666;
  }
  
  .stock-status {
    color: #22c55e;
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }
  
  .stock-status::before {
    content: "•";
    font-size: 1.5rem;
  }
  
  .price-section {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: 12px;
    margin-bottom: 2rem;
  }
  
  .price-container {
    display: flex;
    align-items: baseline;
    margin-bottom: 1rem;
  }
  
  .currency {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text-color);
  }
  
  .price {
    font-size: 3rem;
    font-weight: bold;
    color: var(--text-color);
  }
  
  .price-info {
    color: #666;
    font-size: 0.9rem;
  }
  
  .price-info p {
    margin: 0.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }
  
  .product-description {
    margin-bottom: 2rem;
    color: #4b5563;
    line-height: 1.6;
  }
  
  .key-features {
    margin-bottom: 2rem;
  }
  
  .key-features h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-color);
  }
  
  .key-features ul {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
  }
  
  .key-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #4b5563;
  }
  
  .key-features li::before {
    content: "✓";
    color: var(--primary-color);
    font-weight: bold;
  }
  
  .purchase-section {
    margin-bottom: 2rem;
  }
  
  .warranty-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
    color: #666;
  }
  
  .warranty-info svg {
    color: var(--primary-color);
  }
  
  .product-details-tabs {
    grid-column: 1 / -1;
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  }
  
  .tab-headers {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    border-bottom: 2px solid #e5e7eb;
  }
  
  .tab-btn {
    padding: 1rem 2rem;
    background: none;
    border: none;
    color: #666;
    cursor: pointer;
    font-weight: 500;
    position: relative;
  }
  
  .tab-btn.active {
    color: var(--primary-color);
  }
  
  .tab-btn.active::after {
    content: "";
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-color);
  }
  
  .tab-content {
    display: none;
  }
  
  .tab-content.active {
    display: block;
  }
  
  .tab-content ul {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
  }
  
  .tab-content li {
    color: #4b5563;
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }
  
  .tab-content li::before {
    content: "•";
    color: var(--primary-color);
  }
  
  @media (max-width: 1024px) {
    .product-details {
      grid-template-columns: 1fr;
      gap: 2rem;
    }
  
    .product-gallery {
      max-width: 100%;
    }
  }
  
  @media (max-width: 768px) {
    .product-header h1 {
      font-size: 2rem;
    }
  
    .key-features ul,
    .tab-content ul {
      grid-template-columns: 1fr;
    }
  
    .tab-headers {
      flex-wrap: wrap;
    }
  
    .tab-btn {
      padding: 0.75rem 1.5rem;
    }
  }
  
  /* Footer */
  footer {
    background-color: #1f2937;
    color: white;
    padding: 4rem 0 2rem;
    margin-top: 4rem;
  }
  
  .footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
  }
  
  .footer-section h3,
  .footer-section h4 {
    margin-bottom: 1.5rem;
  }
  
  .footer-section ul {
    list-style: none;
  }
  
  .footer-section ul li {
    margin-bottom: 0.75rem;
  }
  
  .footer-section a {
    color: #e5e7eb;
    text-decoration: none;
    transition: color 0.3s;
  }
  
  .footer-section a:hover {
    color: white;
  }
  
  .social-links {
    display: flex;
    gap: 1rem;
  }
  
  .social-links a {
    color: #e5e7eb;
    transition: color 0.3s;
  }
  
  .social-links a:hover {
    color: white;
  }
  
  .footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem 0;
    text-align: center;
    border-top: 1px solid #374151;
  }
  
  /* Responsive Design */
  @media (max-width: 768px) {
    .contact-content,
    .product-details {
      grid-template-columns: 1fr;
    }
  
    .swiper-slide {
      height: 300px;
    }
  
    .slide-content h2 {
      font-size: 1.75rem;
    }
  }
  
  @media (max-width: 640px) {
    nav {
      flex-direction: column;
      gap: 1rem;
    }
  
    nav ul {
      gap: 1rem;
    }
  }
  
  .products-section {
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
  }
  
  .products-section h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--text-color);
  }
  
  /* Responsive adjustments */
  @media (max-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
  }
  
  @media (max-width: 640px) {
    .products-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
  }
  
  /* Thank You Page Styles */
  .thank-you {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
    text-align: center;
  }
  
  .success-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 2rem;
    color: #22c55e;
  }
  
  .thank-you h1 {
    font-size: 2.5rem;
    color: var(--text-color);
    margin-bottom: 1rem;
  }
  
  .thank-you > p {
    color: #666;
    margin-bottom: 3rem;
  }
  
  .order-details {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    margin-bottom: 3rem;
  }
  
  .order-details h2 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    color: var(--text-color);
  }
  
  .order-product {
    display: flex;
    gap: 2rem;
    padding-bottom: 2rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
  }
  
  .order-product .product-image {
    width: 150px;
    height: 150px;
    border-radius: 8px;
    overflow: hidden;
  }
  
  .order-product .product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  
  .order-product .product-details {
    flex: 1;
    text-align: left;
  }
  
  .order-product h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
  }
  
  .order-product p {
    color: #666;
    margin-bottom: 1rem;
  }
  
  .order-product .price {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--primary-color);
  }
  
  .order-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    text-align: left;
  }
  
  .info-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem;
    background: var(--light-gray);
    border-radius: 8px;
  }
  
  .info-item span:first-child {
    color: #666;
  }
  
  .info-item span:last-child {
    font-weight: 500;
    color: var(--text-color);
  }
  
  .next-steps {
    text-align: left;
    margin-bottom: 3rem;
  }
  
  .next-steps h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-color);
  }
  
  .next-steps ul {
    list-style: none;
  }
  
  .next-steps li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #666;
    margin-bottom: 0.75rem;
  }
  
  .next-steps li::before {
    content: "✓";
    color: #22c55e;
    font-weight: bold;
  }
  
  @media (max-width: 768px) {
    .order-product {
      flex-direction: column;
      gap: 1rem;
    }
  
    .order-product .product-image {
      width: 100%;
      height: 200px;
    }
  
    .order-info {
      grid-template-columns: 1fr;
    }
  }