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

    body {
      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
      background: linear-gradient(to bottom right, #1a1a2e, #7b2cbf, #1a1a2e);
      color: white;
      min-height: 100vh;
      line-height: 1.6;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* Header Styles */
    header {
      width: 100%;
      padding: 16px 24px;
    }

    .header-content {
      max-width: 1200px;
      margin: 0 auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .logo img {
      height: 32px;
      width: auto;
    }

    .nav {
      display: none;
      align-items: center;
      gap: 32px;
    }

    .nav a {
      color: #d1d5db;
      text-decoration: none;
      transition: color 0.3s;
    }

    .nav a:hover {
      color: white;
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .language-selector {
      position: relative;
    }

    .language-btn {
      display: flex;
      align-items: center;
      gap: 4px;
      background: none;
      border: none;
      color: #d1d5db;
      cursor: pointer;
      transition: color 0.3s;
    }

    .language-btn:hover {
      color: white;
    }

    .language-dropdown {
      position: absolute;
      right: 0;
      top: 100%;
      margin-top: 8px;
      background: #374151;
      border-radius: 8px;
      box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
      padding: 8px 0;
      width: 80px;
      z-index: 10;
      display: none;
    }

    .language-dropdown.show {
      display: block;
    }

    .language-dropdown button {
      width: 100%;
      padding: 8px 16px;
      text-align: left;
      background: none;
      border: none;
      color: white;
      cursor: pointer;
      transition: background-color 0.3s;
    }

    .language-dropdown button:hover {
      background: #4b5563;
    }

    .login-btn {
      background: #3b82f6;
      color: white;
      padding: 8px 24px;
      border: none;
      border-radius: 8px;
      cursor: pointer;
      transition: background-color 0.3s;
    }

    .login-btn:hover {
      background: #2563eb;
    }

    /* Hero Section */
    .hero {
      flex: 1;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      padding: 80px 24px;
      text-align: center;
    }

    .hero h1 {
      font-size: 3rem;
      font-weight: bold;
      margin-bottom: 32px;
      line-height: 1.2;
    }

    .hero-description {
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 64px;
      gap: 16px;
    }

    .avatars {
      display: flex;
      margin-right: -8px;
    }

    .avatars img {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      border: 2px solid white;
      margin-left: -8px;
    }

    .description-text {
      font-size: 1.25rem;
      color: #d1d5db;
    }

    .chat-interface {
      background: rgba(31, 41, 55, 0.5);
      backdrop-filter: blur(8px);
      border-radius: 16px;
      padding: 32px;
      max-width: 32rem;
      width: 100%;
    }

    .chat-textarea {
      width: 100%;
      background: transparent;
      color: white;
      border: none;
      outline: none;
      font-size: 1.125rem;
      line-height: 1.6;
      resize: none;
      min-height: 120px;
      overflow-y: hidden;
    }

    .chat-textarea::placeholder {
      color: #9ca3af;
    }

    .typewriter-cursor::after {
      content: '|';
      animation: blink 1s infinite;
    }

    @keyframes blink {
      0%, 50% { opacity: 1; }
      51%, 100% { opacity: 0; }
    }

    .generate-btn {
      background: #3b82f6;
      color: white;
      padding: 12px 24px;
      border: none;
      border-radius: 8px;
      cursor: pointer;
      display: flex;
      align-items: center;
      gap: 8px;
      margin-left: auto;
      margin-top: 16px;
      transition: background-color 0.3s;
    }

    .generate-btn:hover {
      background: #2563eb;
    }

    /* Case Studies Section */
    .case-studies {
      padding: 80px 24px;
      background: rgba(0, 0, 0, 0.3);
    }

    .section-title {
      text-align: center;
      font-size: 2.5rem;
      font-weight: bold;
      margin-bottom: 32px;
    }

    .filter-buttons {
      display: flex;
      justify-content: center;
      margin-bottom: 48px;
    }

    .filter-container {
      display: flex;
      background: rgba(31, 41, 55, 0.5);
      border-radius: 8px;
      padding: 4px;
    }

    .filter-btn {
      padding: 8px 24px;
      border: none;
      background: none;
      color: #d1d5db;
      cursor: pointer;
      border-radius: 6px;
      transition: all 0.3s;
    }

    .filter-btn.active {
      background: #3b82f6;
      color: white;
    }

    .filter-btn:hover:not(.active) {
      color: white;
      background: rgba(75, 85, 99, 0.5);
    }

    .cases-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 32px;
      margin-bottom: 48px;
    }

    .case-card {
      background: rgba(31, 41, 55, 0.5);
      backdrop-filter: blur(8px);
      border-radius: 12px;
      overflow: hidden;
      cursor: pointer;
      transition: all 0.3s;
      opacity: 1;
      transform: scale(1);
    }

    .case-card:hover {
      background: rgba(31, 41, 55, 0.7);
      transform: scale(1.05);
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    }

    .case-card.hidden {
      opacity: 0;
      transform: scale(0.8);
      pointer-events: none;
    }

    .case-image {
      position: relative;
      height: 192px;
      overflow: hidden;
    }

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

    .case-card:hover .case-image img {
      transform: scale(1.1);
    }

    .case-image::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(to top, rgba(0, 0, 0, 0.5), transparent);
    }

    .case-overlay {
      position: absolute;
      inset: 0;
      background: rgba(0, 0, 0, 0.4);
      opacity: 0;
      transition: opacity 0.3s;
      display: flex;
      align-items: center;
      justify-content: center;
    }

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

    .view-site-btn {
      background: #3b82f6;
      color: white;
      padding: 8px 24px;
      border: none;
      border-radius: 8px;
      cursor: pointer;
      font-weight: 600;
      display: flex;
      align-items: center;
      gap: 8px;
      transform: translateY(16px);
      transition: transform 0.3s;
    }

    .case-card:hover .view-site-btn {
      transform: translateY(0);
    }

    .view-site-btn:hover {
      background: #2563eb;
    }

    .case-content {
      padding: 24px;
    }

    .case-title {
      font-size: 1.25rem;
      font-weight: 600;
      margin-bottom: 16px;
      color: white;
      transition: color 0.3s;
    }

    .case-card:hover .case-title {
      color: #93c5fd;
    }

    .case-description {
      color: #d1d5db;
      line-height: 1.6;
    }

    .view-more-btn {
      background: #3b82f6;
      color: white;
      padding: 12px 32px;
      border: none;
      border-radius: 8px;
      cursor: pointer;
      display: flex;
      align-items: center;
      gap: 8px;
      margin: 0 auto;
      transition: background-color 0.3s;
    }

    .view-more-btn:hover {
      background: #2563eb;
    }

    /* Testimonials Section */
    .testimonials {
      padding: 80px 0;
      overflow: hidden;
    }

    .testimonials-scroll {
      position: relative;
    }

    .testimonials-track {
      display: flex;
      animation: scroll-rtl 60s linear infinite;
    }

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

    @keyframes scroll-rtl {
      0% { transform: translateX(0); }
      100% { transform: translateX(-50%); }
    }

    .testimonial-card {
      background: rgba(31, 41, 55, 0.5);
      backdrop-filter: blur(8px);
      border-radius: 12px;
      padding: 24px;
      min-width: 400px;
      max-width: 400px;
      margin: 0 16px;
      transition: all 0.3s;
      display: flex;
      flex-direction: column;
      min-height: 280px;
    }

    .testimonial-card:hover {
      background: rgba(31, 41, 55, 0.7);
    }

    .testimonial-content {
      flex: 1;
      display: flex;
      flex-direction: column;
    }

    .testimonial-text {
      color: #d1d5db;
      margin-bottom: 16px;
      line-height: 1.6;
      font-size: 1.125rem;
    }

    .testimonial-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 16px;
      margin-top: auto;
    }

    .testimonial-tag {
      padding: 4px 12px;
      background: rgba(59, 130, 246, 0.2);
      color: #3b82f6;
      font-size: 0.875rem;
      border-radius: 9999px;
      font-weight: 500;
    }

    .testimonial-author {
      display: flex;
      align-items: center;
      margin-top: 16px;
    }

    .testimonial-avatar {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      border: 2px solid #3b82f6;
      margin-right: 16px;
      flex-shrink: 0;
    }

    .testimonial-name {
      font-weight: 600;
      color: white;
    }

    .testimonial-role {
      color: #9ca3af;
      font-size: 0.875rem;
    }

    /* Features Section */
    .features {
      padding: 80px 24px;
      background: rgba(0, 0, 0, 0.2);
    }

    .features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
      gap: 48px;
    }

    .feature-card {
      background: rgba(31, 41, 55, 0.3);
      backdrop-filter: blur(8px);
      border-radius: 16px;
      padding: 32px;
      transition: all 0.3s;
    }

    .feature-card:hover {
      background: rgba(31, 41, 55, 0.5);
    }

    .feature-header {
      display: flex;
      align-items: flex-start;
      margin-bottom: 24px;
    }

    .feature-icon {
      background: rgba(59, 130, 246, 0.2);
      border-radius: 12px;
      padding: 12px;
      margin-right: 16px;
      flex-shrink: 0;
    }

    .feature-icon i {
      font-size: 2rem;
      color: #3b82f6;
    }

    .feature-title {
      font-size: 1.5rem;
      font-weight: bold;
      color: white;
      margin-bottom: 8px;
    }

    .feature-subtitle {
      color: #93c5fd;
      font-size: 1.125rem;
      font-weight: 500;
    }

    .feature-section {
      margin-bottom: 16px;
    }

    .feature-section h4 {
      color: #3b82f6;
      font-weight: 600;
      margin-bottom: 8px;
    }

    .feature-section p {
      color: #d1d5db;
      line-height: 1.6;
    }

    .feature-section:last-child p {
      color: #9ca3af;
    }

    /* About Us Section */
    .about-us {
      padding: 80px 24px;
      background: rgba(0, 0, 0, 0.4);
    }

    .about-content {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 64px;
      align-items: center;
    }

    .about-text {
      display: flex;
      flex-direction: column;
      gap: 32px;
    }

    .about-section h3 {
      font-size: 1.875rem;
      font-weight: bold;
      color: #93c5fd;
      margin-bottom: 16px;
    }

    .about-section p {
      color: #d1d5db;
      font-size: 1.125rem;
      line-height: 1.6;
    }

    .about-image {
      position: relative;
    }

    .about-image-container {
      background: linear-gradient(to bottom right, #3b82f6, #2563eb);
      border-radius: 16px;
      padding: 32px;
    }

    .about-image img {
      width: 100%;
      height: 320px;
      object-fit: cover;
      border-radius: 12px;
    }

    .about-image::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(to top right, rgba(147, 51, 234, 0.2), rgba(59, 130, 246, 0.2));
      border-radius: 16px;
      pointer-events: none;
    }

    /* Knowledge Base FAQ Section */
    .knowledge-faq {
      padding: 80px 24px;
      background: rgba(0, 0, 0, 0.3);
    }

    .knowledge-faq-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 64px;
    }

    .knowledge-card, .faq-card {
      background: rgba(31, 41, 55, 0.5);
      backdrop-filter: blur(8px);
      border-radius: 16px;
      padding: 32px;
      transition: all 0.3s;
      display: flex;
      flex-direction: column;
      min-height: 600px;
    }

    .knowledge-card:hover, .faq-card:hover {
      background: rgba(31, 41, 55, 0.7);
    }

    .card-header {
      display: flex;
      align-items: flex-start;
      margin-bottom: 24px;
    }

    .card-header h3 {
      font-size: 1.875rem;
      font-weight: bold;
      color: white;
      margin-bottom: 16px;
    }

    .card-description {
      color: #d1d5db;
      font-size: 1.125rem;
      line-height: 1.6;
      margin-bottom: 24px;
    }

    .card-items {
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-bottom: 32px;
      flex: 1;
    }

    .card-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
      text-align: left;
      padding: 12px;
      border-radius: 8px;
      background: rgba(55, 65, 81, 0.3);
      cursor: pointer;
      transition: all 0.2s;
      border: none;
      color: #d1d5db;
    }

    .card-item:hover {
      background: rgba(55, 65, 81, 0.5);
      color: white;
    }

    .card-item i {
      color: #9ca3af;
      transition: color 0.2s;
    }

    .card-item:hover i {
      color: #3b82f6;
    }

    .card-action {
      margin-top: auto;
    }

    /* Pricing Section */
    .pricing {
      padding: 80px 24px;
      background: rgba(147, 51, 234, 0.3);
    }

    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 32px;
    }

    .pricing-card {
      position: relative;
      background: rgba(255, 255, 255, 0.1);
      backdrop-filter: blur(8px);
      border-radius: 16px;
      border: 1px solid rgba(255, 255, 255, 0.2);
      transition: all 0.3s;
      display: flex;
      flex-direction: column;
    }

    .pricing-card:hover {
      transform: scale(1.05);
      border-color: rgba(255, 255, 255, 0.3);
    }

    .pricing-card.popular {
      border-color: #a855f7;
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
      transform: scale(1.05);
    }

    .pricing-card.popular:hover {
      transform: scale(1.1);
    }

    .popular-badge {
      position: absolute;
      top: -16px;
      left: 50%;
      transform: translateX(-50%);
      background: linear-gradient(to right, #a855f7, #9333ea);
      color: white;
      padding: 8px 24px;
      border-radius: 9999px;
      font-size: 0.875rem;
      font-weight: 500;
    }

    .pricing-content {
      padding: 32px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }

    .pricing-header {
      text-align: center;
      margin-bottom: 32px;
    }

    .pricing-name {
      font-size: 1.5rem;
      font-weight: bold;
      margin-bottom: 16px;
    }

    .pricing-price {
      margin-bottom: 16px;
    }

    .pricing-price span:first-child {
      font-size: 2.5rem;
      font-weight: bold;
    }

    .pricing-price span:last-child {
      color: rgba(255, 255, 255, 0.7);
      margin-left: 4px;
    }

    .pricing-details {
      display: flex;
      flex-direction: column;
      gap: 8px;
      font-size: 0.875rem;
      color: rgba(255, 255, 255, 0.8);
    }

    .pricing-details div span:last-child {
      font-weight: 500;
      color: white;
    }

    .pricing-features {
      display: flex;
      flex-direction: column;
      gap: 16px;
      margin-bottom: 32px;
      flex: 1;
    }

    .pricing-features-title {
      font-size: 0.875rem;
      color: rgba(255, 255, 255, 0.8);
      margin-bottom: 16px;
    }

    .pricing-feature {
      display: flex;
      align-items: flex-start;
      gap: 12px;
    }

    .pricing-feature i {
      width: 20px;
      height: 20px;
      color: #a855f7;
      flex-shrink: 0;
      margin-top: 2px;
    }

    .pricing-feature span {
      font-size: 0.875rem;
      color: rgba(255, 255, 255, 0.9);
    }

    .pricing-cta {
      padding: 32px 32px 20px;
    }

    .pricing-button {
      width: 100%;
      padding: 12px 24px;
      border-radius: 8px;
      font-weight: 500;
      transition: all 0.3s;
      cursor: pointer;
      border: none;
    }

    .pricing-button.primary {
      background: linear-gradient(to right, #a855f7, #9333ea);
      color: white;
    }

    .pricing-button.primary:hover {
      background: linear-gradient(to right, #9333ea, #7c3aed);
    }

    .pricing-button.secondary {
      background: rgba(255, 255, 255, 0.1);
      color: white;
      border: 1px solid rgba(255, 255, 255, 0.2);
    }

    .pricing-button.secondary:hover {
      background: rgba(255, 255, 255, 0.2);
      border-color: rgba(255, 255, 255, 0.4);
    }

    /* Mobile Responsive */
    @media (min-width: 768px) {
      .nav {
        display: flex;
      }

      .hero h1 {
        font-size: 4rem;
      }
    }

    @media (max-width: 768px) {
      .hero h1 {
        font-size: 2.5rem;
      }

      .hero-description {
        flex-direction: column;
        gap: 8px;
      }

      .about-content {
        grid-template-columns: 1fr;
        gap: 32px;
      }

      .knowledge-faq-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }

      .features-grid {
        grid-template-columns: 1fr;
      }

      .feature-card {
        min-width: auto;
      }

      .testimonial-card {
        min-width: 320px;
        max-width: 320px;
      }
    }