:root {
      --primary: #0066b1;
      --primary-dark: #004a85;
      --secondary: #1c1c1c;
      --accent: #e6b220;
      --light: #f8f9fa;
      --gray: #6c757d;
      --transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
      --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
      --radius: 8px;
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: 'Montserrat', sans-serif;
      line-height: 1.6;
      color: var(--secondary);
      background-color: var(--light);
      overflow-x: hidden;
    }

    /* Header */
    header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      box-shadow: var(--shadow);
      z-index: 1000;
      transition: var(--transition);
    }

    .navbar {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 1rem 5%;
      max-width: 1400px;
      margin: 0 auto;
    }

    .logo {
      font-size: 1.8rem;
      font-weight: 700;
      color: var(--primary);
      text-decoration: none;
      letter-spacing: 1px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 2rem;
    }

    .nav-links a {
      text-decoration: none;
      color: var(--secondary);
      font-weight: 500;
      position: relative;
      transition: var(--transition);
    }

    .nav-links a:hover {
      color: var(--primary);
    }

    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: -5px;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--primary);
      transition: var(--transition);
    }

    .nav-links a:hover::after {
      width: 100%;
    }

    /* Dropdown */
    .dropdown {
      position: relative;
    }

    .dropbtn {
      background: none;
      border: none;
      font-family: inherit;
      font-size: inherit;
      color: var(--secondary);
      font-weight: 500;
      cursor: pointer;
      padding: 0;
      transition: var(--transition);
    }

    .dropbtn:hover {
      color: var(--primary);
    }

    .dropdown-content {
      position: absolute;
      top: 100%;
      left: 0;
      background: white;
      min-width: 200px;
      box-shadow: var(--shadow);
      border-radius: var(--radius);
      opacity: 0;
      visibility: hidden;
      transform: translateY(10px);
      transition: var(--transition);
      z-index: 100;
    }

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

    .dropdown-content a {
      display: block;
      padding: 0.8rem 1rem;
      color: var(--secondary);
      text-decoration: none;
      transition: var(--transition);
      border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    }

    .dropdown-content a:hover {
      background: var(--primary);
      color: white;
    }

    .search-bar {
      padding: 0.5rem 1rem;
      border: 1px solid #ddd;
      border-radius: 30px;
      font-family: inherit;
      width: 200px;
      transition: var(--transition);
    }

    .search-bar:focus {
      outline: none;
      border-color: var(--primary);
      width: 250px;
    }

    .login, .signup {
      padding: 0.5rem 1.5rem;
      border-radius: 30px;
      font-family: inherit;
      font-weight: 500;
      cursor: pointer;
      transition: var(--transition);
    }

    .login {
      background: transparent;
      border: 1px solid var(--primary);
      color: var(--primary);
    }

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

    .signup {
      background: var(--primary);
      border: 1px solid var(--primary);
      color: white;
    }

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

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      cursor: pointer;
      color: var(--secondary);
    }

    /* Hero Carousel */
    .carousel {
      position: relative;
      height: 100vh;
      overflow: hidden;
      margin-top: 70px;
    }

    .carousel-slide {
      display: flex;
      width: 400%;
      height: 100%;
      animation: slide 20s infinite;
    }

    .carousel-content {
      width: 25%;
      height: 100%;
      position: relative;
    }

    .carousel-content img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .carousel-content::after {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: linear-gradient(to right, rgba(0, 0, 0, 0.7), transparent);
    }

    @keyframes slide {
      0%, 20% { transform: translateX(0); }
      25%, 45% { transform: translateX(-25%); }
      50%, 70% { transform: translateX(-50%); }
      75%, 95% { transform: translateX(-75%); }
      100% { transform: translateX(0); }
    }

    /* Cards Section */
    .card-section {
      padding: 6rem 5%;
      background: white;
    }

    .how {
      text-align: center;
      font-size: 2.5rem;
      font-weight: 700;
      margin-bottom: 3rem;
      color: var(--secondary);
      position: relative;
    }

    .how::after {
      content: '';
      position: absolute;
      bottom: -10px;
      left: 50%;
      transform: translateX(-50%);
      width: 100px;
      height: 4px;
      background: var(--primary);
    }

    .card-container {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 2rem;
      max-width: 1200px;
      margin: 0 auto;
    }

    .card {
      background: white;
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
      transition: var(--transition);
      transform: translateY(50px);
      opacity: 0;
    }

    .card.animate {
      transform: translateY(0);
      opacity: 1;
    }

    .card:hover {
      transform: translateY(-10px);
      box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
    }

    .card img {
      width: 100%;
      height: 220px;
      object-fit: cover;
      transition: var(--transition);
    }

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

    .card-content {
      padding: 1.5rem;
    }

    .card-content h3 {
      font-size: 1.5rem;
      margin-bottom: 0.5rem;
      color: var(--secondary);
    }

    .card-content p {
      color: var(--gray);
      margin-bottom: 1.5rem;
    }

    .card-content button {
      padding: 0.7rem 1.5rem;
      background: var(--primary);
      color: white;
      border: none;
      border-radius: 30px;
      font-family: inherit;
      font-weight: 500;
      cursor: pointer;
      transition: var(--transition);
    }

    .card-content button:hover {
      background: var(--primary-dark);
      transform: translateY(-3px);
    }

    /* Showcase Section */
    .showcase-section {
      padding: 6rem 5%;
      background: #f8f9fa;
    }

    .showcase-section h2 {
      text-align: center;
      font-size: 2.5rem;
      font-weight: 700;
      margin-bottom: 3rem;
      color: var(--secondary);
    }

    .showcase {
      display: flex;
      align-items: center;
      gap: 3rem;
      margin-bottom: 4rem;
      opacity: 0;
      transform: translateX(-50px);
      transition: var(--transition);
    }

    .showcase.animate {
      opacity: 1;
      transform: translateX(0);
    }

    .showcase:nth-child(even) {
      flex-direction: row-reverse;
      transform: translateX(50px);
    }

    .showcase:nth-child(even).animate {
      transform: translateX(0);
    }

    .showcase img {
      width: 50%;
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      transition: var(--transition);
    }

    .showcase:hover img {
      transform: scale(1.02);
    }

    .showcase-content {
      width: 50%;
    }

    .showcase-content h3 {
      font-size: 1.8rem;
      margin-bottom: 1rem;
      color: var(--secondary);
    }

    .showcase-content p {
      color: var(--gray);
      line-height: 1.7;
    }

    /* Infinite Carousel */
    .infinite-carousel {
      padding: 4rem 0;
      background: var(--secondary);
      overflow: hidden;
      position: relative;
    }

    .carousel-track {
      display: flex;
      animation: scroll 30s linear infinite;
      width: calc(250px * 14);
    }

    .carousel-track:hover {
      animation-play-state: paused;
    }

    .carousel-track img {
      width: 250px;
      height: 160px;
      object-fit: cover;
      margin: 0 10px;
      border-radius: var(--radius);
      transition: var(--transition);
    }

    .carousel-track img:hover {
      transform: scale(1.05);
    }

    @keyframes scroll {
      0% { transform: translateX(0); }
      100% { transform: translateX(calc(-250px * 7)); }
    }

    /* Customer Reviews */
    .customer-reviews {
      padding: 6rem 5%;
      background: white;
      text-align: center;
    }

    .customer-reviews h2 {
      font-size: 2.5rem;
      margin-bottom: 1rem;
      color: var(--secondary);
    }

    .section-description {
      max-width: 700px;
      margin: 0 auto 3rem;
      color: var(--gray);
    }

    .review-carousel {
      position: relative;
      max-width: 800px;
      margin: 0 auto;
      overflow: hidden;
      height: 250px;
    }

    .review {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      opacity: 0;
      transform: translateX(50px);
      transition: var(--transition);
    }

    .review.active {
      opacity: 1;
      transform: translateX(0);
    }

    .review p {
      font-size: 1.2rem;
      font-style: italic;
      margin-bottom: 1.5rem;
      color: var(--secondary);
    }

    .review h4 {
      font-weight: 600;
      margin-bottom: 0.5rem;
      color: var(--primary);
    }

    .stars {
      color: var(--accent);
    }

    /* Car Models */
    .car-models, .featured-models {
      padding: 6rem 5%;
      background: #f8f9fa;
    }

    .car-models h2, .featured-models h2 {
      text-align: center;
      font-size: 2.5rem;
      margin-bottom: 1rem;
      color: var(--secondary);
    }

    .models-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 2rem;
      max-width: 1200px;
      margin: 3rem auto 0;
    }

    .model-card {
      background: white;
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
      transition: var(--transition);
      transform: translateY(30px);
      opacity: 0;
    }

    .model-card.animate {
      transform: translateY(0);
      opacity: 1;
    }

    .model-card:hover {
      transform: translateY(-10px);
    }

    .model-card img {
      width: 100%;
      height: 200px;
      object-fit: cover;
      transition: var(--transition);
    }

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

    .model-card h3 {
      padding: 1.5rem 1.5rem 0.5rem;
      font-size: 1.3rem;
      color: var(--secondary);
    }

    .model-card p {
      padding: 0 1.5rem;
      color: var(--gray);
      margin-bottom: 1.5rem;
    }

    .model-card button {
      margin: 0 1.5rem 1.5rem;
      padding: 0.7rem 1.5rem;
      background: var(--primary);
      color: white;
      border: none;
      border-radius: 30px;
      font-family: inherit;
      font-weight: 500;
      cursor: pointer;
      transition: var(--transition);
    }

    .model-card button:hover {
      background: var(--primary-dark);
    }

    .featured-models .model-card ul {
      padding: 0 1.5rem;
      margin-bottom: 1.5rem;
      list-style: none;
    }

    .featured-models .model-card li {
      padding: 0.3rem 0;
      color: var(--gray);
      position: relative;
      padding-left: 1.5rem;
    }

    .featured-models .model-card li::before {
      content: '✓';
      position: absolute;
      left: 0;
      color: var(--primary);
      font-weight: bold;
    }

    .cta-button {
      background: var(--primary);
      color: white;
      border: none;
      padding: 0.8rem 1.8rem;
      border-radius: 30px;
      font-family: inherit;
      font-weight: 500;
      cursor: pointer;
      transition: var(--transition);
      display: block;
      margin: 0 auto;
    }

    .cta-button:hover {
      background: var(--primary-dark);
      transform: translateY(-3px);
    }

    /* Why Choose BMW */
    .why-choose-dodge {
      padding: 6rem 5%;
      background: white;
      text-align: center;
    }

    .reasons-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 2rem;
      max-width: 1200px;
      margin: 3rem auto 0;
    }

    .reason-card {
      padding: 2rem;
      background: #f8f9fa;
      border-radius: var(--radius);
      transition: var(--transition);
      transform: translateY(30px);
      opacity: 0;
    }

    .reason-card.animate {
      transform: translateY(0);
      opacity: 1;
    }

    .reason-card:hover {
      transform: translateY(-10px);
      box-shadow: var(--shadow);
    }

    .reason-card img {
      width: 80px;
      height: 80px;
      object-fit: cover;
      border-radius: 50%;
      margin-bottom: 1.5rem;
    }

    .reason-card h3 {
      margin-bottom: 1rem;
      color: var(--secondary);
    }

    .reason-card p {
      color: var(--gray);
    }

    /* Testimonials */
    .testimonials {
      padding: 6rem 5%;
      background: #f8f9fa;
      text-align: center;
    }

    .testimonial-carousel {
      overflow: hidden;
      position: relative;
      max-width: 1200px;
      margin: 3rem auto 0;
    }

    .testimonial-track {
      display: flex;
      animation: testimonial-scroll 30s linear infinite;
      width: calc(300px * 8);
    }

    .testimonial-track:hover {
      animation-play-state: paused;
    }

    .testimonial-card {
      background: white;
      border-radius: var(--radius);
      padding: 2rem;
      margin: 0 15px;
      width: 300px;
      box-shadow: var(--shadow);
      transition: var(--transition);
    }

    .testimonial-card:hover {
      transform: translateY(-10px);
    }

    .testimonial-card img {
      width: 80px;
      height: 80px;
      border-radius: 50%;
      object-fit: cover;
      margin-bottom: 1rem;
    }

    .testimonial-card h3 {
      margin-bottom: 0.5rem;
      color: var(--secondary);
    }

    .testimonial-card p {
      color: var(--gray);
      margin-bottom: 1rem;
      font-style: italic;
    }

    @keyframes testimonial-scroll {
      0% { transform: translateX(0); }
      100% { transform: translateX(calc(-300px * 4)); }
    }

    /* Stay Connected */
    .stay-connected {
      padding: 6rem 5%;
      background: white;
      text-align: center;
    }

    .contact-social {
      display: flex;
      max-width: 1000px;
      margin: 3rem auto 0;
      gap: 3rem;
    }

    .contact-form {
      flex: 1;
      text-align: left;
    }

    .contact-form label {
      display: block;
      margin-bottom: 0.5rem;
      font-weight: 500;
      color: var(--secondary);
    }

    .contact-form input, .contact-form textarea {
      width: 100%;
      padding: 0.8rem 1rem;
      margin-bottom: 1.5rem;
      border: 1px solid #ddd;
      border-radius: var(--radius);
      font-family: inherit;
      transition: var(--transition);
    }

    .contact-form input:focus, .contact-form textarea:focus {
      outline: none;
      border-color: var(--primary);
    }

    .submit-button {
      background: var(--primary);
      color: white;
      border: none;
      padding: 0.8rem 2rem;
      border-radius: 30px;
      font-family: inherit;
      font-weight: 500;
      cursor: pointer;
      transition: var(--transition);
    }

    .submit-button:hover {
      background: var(--primary-dark);
    }

    .social-media {
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      text-align: center;
    }

    .social-media p {
      margin-bottom: 1.5rem;
      color: var(--secondary);
      font-weight: 500;
    }

    .social-icons {
      display: flex;
      gap: 1rem;
      margin-bottom: 2rem;
    }

    .social-icons a {
      display: flex;
      align-items: center;
      justify-content: center;
      width: 50px;
      height: 50px;
      background: var(--primary);
      border-radius: 50%;
      transition: var(--transition);
    }

    .social-icons a:hover {
      background: var(--primary-dark);
      transform: translateY(-5px);
    }

    .social-icons img {
      width: 24px;
      height: 24px;
      filter: brightness(0) invert(1);
    }

    .newsletter-button {
      background: transparent;
      color: var(--primary);
      border: 2px solid var(--primary);
      padding: 0.8rem 2rem;
      border-radius: 30px;
      font-family: inherit;
      font-weight: 500;
      cursor: pointer;
      transition: var(--transition);
    }

    .newsletter-button:hover {
      background: var(--primary);
      color: white;
    }

    /* Footer */
    .footer {
      background: var(--secondary);
      color: white;
      padding: 4rem 5% 2rem;
    }

    .footer-content {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 2rem;
      max-width: 1200px;
      margin: 0 auto;
    }

    .footer-nav h4, .footer-contact h4, .footer-social h4 {
      margin-bottom: 1.5rem;
      font-size: 1.2rem;
      position: relative;
    }

    .footer-nav h4::after, .footer-contact h4::after, .footer-social h4::after {
      content: '';
      position: absolute;
      bottom: -8px;
      left: 0;
      width: 40px;
      height: 3px;
      background: var(--primary);
    }

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

    .footer-nav li {
      margin-bottom: 0.8rem;
    }

    .footer-nav a {
      color: #ddd;
      text-decoration: none;
      transition: var(--transition);
    }

    .footer-nav a:hover {
      color: white;
      padding-left: 5px;
    }

    .footer-contact p {
      margin-bottom: 0.8rem;
      color: #ddd;
    }

    .footer-social .social-icons {
      justify-content: flex-start;
    }

    .footer-bottom {
      text-align: center;
      padding-top: 2rem;
      margin-top: 2rem;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      color: #aaa;
      font-size: 0.9rem;
    }

    /* Portfolio Credit */
    .portfolio-credit {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background: var(--primary);
      color: white;
      padding: 10px 15px;
      border-radius: 30px;
      font-size: 0.9rem;
      z-index: 100;
      box-shadow: var(--shadow);
      transition: var(--transition);
    }

    .portfolio-credit:hover {
      background: var(--primary-dark);
      transform: translateY(-3px);
    }

    /* Scroll to Top Button */
    .scroll-to-top {
      position: fixed;
      bottom: 30px;
      right: 30px;
      width: 50px;
      height: 50px;
      background: var(--primary);
      color: white;
      border: none;
      border-radius: 50%;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      opacity: 0;
      visibility: hidden;
      transition: var(--transition);
      z-index: 100;
    }

    .scroll-to-top.visible {
      opacity: 1;
      visibility: visible;
    }

    .scroll-to-top:hover {
      background: var(--primary-dark);
      transform: translateY(-5px);
    }

    /* Responsive Design */
    @media (max-width: 1024px) {
      .showcase {
        flex-direction: column !important;
        transform: translateY(30px) !important;
      }
      
      .showcase.animate {
        transform: translateY(0) !important;
      }
      
      .showcase img, .showcase-content {
        width: 100%;
      }
      
      .contact-social {
        flex-direction: column;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: white;
        flex-direction: column;
        padding: 2rem;
        box-shadow: var(--shadow);
      }
      
      .nav-links.active {
        display: flex;
      }
      
      .menu-toggle {
        display: block;
      }
      
      .search-bar {
        width: 100%;
        margin: 1rem 0;
      }
      
      .carousel {
        height: 70vh;
      }
      
      .how, .customer-reviews h2, .car-models h2, .featured-models h2 {
        font-size: 2rem;
      }
      
      .portfolio-credit {
        bottom: 70px;
      }
    }

    @media (max-width: 480px) {
      .navbar {
        padding: 1rem;
      }
      
      .card-container, .models-grid, .reasons-grid {
        grid-template-columns: 1fr;
      }
      
      .carousel-track img {
        width: 200px;
        height: 130px;
      }
      
      @keyframes scroll {
        100% { transform: translateX(calc(-200px * 7)); }
      }
    }