* {
      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: #333;
    }

    /* Navigation - Sticky Header */
    .nav {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      padding: 15px 0;
      background: transparent;
      transition: background 0.3s ease, box-shadow 0.3s ease, padding 0.3s ease;
    }

    .nav.scrolled {
      background: rgba(255, 255, 255, 0.98);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
      padding: 10px 0;
    }

    .nav.scrolled .nav-logo {
      color: #667eea;
    }

    .nav.scrolled .nav-links a {
      color: #666;
    }

    /* Hero text visible over transparent header */
    .nav:not(.scrolled) .nav-logo {
      color: white;
    }

    .nav:not(.scrolled) .nav-links a {
      color: rgba(255, 255, 255, 0.9);
    }

    .nav:not(.scrolled) .nav-links a:hover {
      color: white;
    }

    .nav-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .nav-logo {
      font-size: 1.5rem;
      font-weight: bold;
      color: #667eea;
      text-decoration: none;
      display: flex;
      align-items: center;
    }

    .nav-logo img {
      height: 40px;
      width: auto;
      margin-right: 10px;
    }

    .nav-links a {
      margin-left: 30px;
      color: #666;
      text-decoration: none;
      font-weight: 500;
      transition: color 0.3s;
    }

    .nav-links a:hover {
      color: #667eea;
    }

    /* Hero Section */
    .hero {
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      color: white;
      padding: 140px 20px 100px;
      /* Extra top padding for fixed header */
      text-align: center;
    }

    .hero h1 {
      font-size: 3rem;
      margin-bottom: 20px;
      font-weight: 700;
    }

    .hero p {
      font-size: 1.3rem;
      margin-bottom: 40px;
      opacity: 0.95;
      max-width: 700px;
      margin-left: auto;
      margin-right: auto;
    }

    .cta-button {
      display: inline-block;
      padding: 18px 40px;
      background: white;
      color: #667eea;
      border-radius: 50px;
      text-decoration: none;
      font-size: 1.2rem;
      font-weight: 600;
      transition: all 0.3s;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    }

    .cta-button:hover {
      transform: translateY(-3px);
      box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
    }

    .hero-subtitle {
      margin-top: 30px;
      font-size: 0.95rem;
      opacity: 0.8;
    }

    /* Features Section */
    .features {
      padding: 80px 20px;
      background: #f9fafb;
    }

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

    .section-title {
      text-align: center;
      font-size: 2.5rem;
      margin-bottom: 50px;
      color: #333;
    }

    .features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-bottom: 40px;
    }

    .feature-card {
      background: white;
      padding: 30px;
      border-radius: 12px;
      box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
      transition: all 0.3s;
    }

    .feature-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    }

    .feature-icon {
      font-size: 3rem;
      margin-bottom: 20px;
    }

    .feature-card h3 {
      font-size: 1.4rem;
      margin-bottom: 15px;
      color: #667eea;
    }

    .feature-card p {
      color: #666;
      margin-bottom: 15px;
    }

    .feature-list {
      list-style: none;
      padding: 0;
    }

    .feature-list li {
      padding: 8px 0;
      color: #555;
      position: relative;
      padding-left: 25px;
    }

    .feature-list li:before {
      content: "✓";
      position: absolute;
      left: 0;
      color: #38ef7d;
      font-weight: bold;
    }

    /* Pricing Section */
    .pricing {
      padding: 80px 20px;
      background: white;
    }

    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 30px;
      max-width: 1000px;
      margin: 0 auto;
    }

    .pricing-card {
      background: white;
      border: 2px solid #e0e0e0;
      border-radius: 12px;
      padding: 40px 30px;
      text-align: center;
      transition: all 0.3s;
      position: relative;
    }

    .pricing-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
    }

    .pricing-card.popular {
      border-color: #667eea;
      box-shadow: 0 10px 30px rgba(102, 126, 234, 0.2);
    }

    .pricing-badge {
      position: absolute;
      top: -15px;
      left: 50%;
      transform: translateX(-50%);
      background: #667eea;
      color: white;
      padding: 5px 20px;
      border-radius: 20px;
      font-size: 0.85rem;
      font-weight: 600;
    }

    .pricing-card h3 {
      font-size: 1.8rem;
      margin-bottom: 10px;
      color: #333;
    }

    .pricing-price {
      font-size: 3rem;
      font-weight: bold;
      color: #667eea;
      margin-bottom: 10px;
    }

    .pricing-period {
      color: #999;
      margin-bottom: 30px;
    }

    .pricing-features {
      list-style: none;
      padding: 0;
      margin-bottom: 30px;
      text-align: left;
    }

    .pricing-features li {
      padding: 12px 0;
      border-bottom: 1px solid #f0f0f0;
    }

    .pricing-features li:last-child {
      border-bottom: none;
    }

    .pricing-features .included {
      color: #38ef7d;
      margin-right: 10px;
      font-weight: bold;
    }

    .pricing-features .excluded {
      color: #ccc;
      margin-right: 10px;
    }

    .pricing-button {
      display: block;
      width: 100%;
      padding: 15px;
      background: #667eea;
      color: white;
      border: none;
      border-radius: 8px;
      font-size: 1.1rem;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.3s;
      text-decoration: none;
      text-align: center;
    }

    .pricing-button:hover {
      background: #5568d3;
      transform: translateY(-2px);
    }

    /* Pricing Toggle */
    .pricing-toggle {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 15px;
      margin-bottom: 40px;
    }

    .toggle-label {
      font-weight: 500;
      color: #666;
      transition: color 0.2s;
      cursor: pointer;
    }

    .toggle-label.active {
      color: #333;
      font-weight: 600;
    }

    .savings-badge {
      background: #38ef7d;
      color: white;
      font-size: 0.75rem;
      padding: 2px 8px;
      border-radius: 10px;
      margin-left: 5px;
    }

    .toggle-switch {
      position: relative;
      width: 50px;
      height: 26px;
    }

    .toggle-switch input {
      opacity: 0;
      width: 0;
      height: 0;
    }

    .toggle-slider {
      position: absolute;
      cursor: pointer;
      inset: 0;
      background: #667eea;
      border-radius: 26px;
      transition: 0.3s;
    }

    .toggle-slider:before {
      content: '';
      position: absolute;
      height: 20px;
      width: 20px;
      left: 3px;
      bottom: 3px;
      background: white;
      border-radius: 50%;
      transition: 0.3s;
    }

    .toggle-switch input:checked+.toggle-slider:before {
      transform: translateX(24px);
    }

    .price-container {
      margin-bottom: 20px;
    }

    .price {
      font-size: 3rem;
      font-weight: bold;
      color: #667eea;
    }

    .price-period {
      display: block;
      color: #999;
      font-size: 0.9rem;
      margin-top: 5px;
    }

    /* About Section */
    .about {
      padding: 80px 20px;
      background: #f9fafb;
    }

    .about-content {
      max-width: 900px;
      margin: 0 auto;
    }

    .about h2 {
      font-size: 2.5rem;
      margin-bottom: 30px;
      text-align: center;
      color: #333;
    }

    .about-box {
      background: white;
      padding: 40px;
      border-radius: 12px;
      box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
      margin-bottom: 30px;
    }

    .about-box h3 {
      color: #667eea;
      margin-bottom: 20px;
      font-size: 1.5rem;
    }

    .about-box p {
      color: #555;
      margin-bottom: 15px;
      line-height: 1.8;
    }

    .requirements-list {
      list-style: none;
      padding: 0;
      margin: 20px 0;
    }

    .requirements-list li {
      padding: 15px;
      background: #f8f9fa;
      margin-bottom: 10px;
      border-radius: 8px;
      border-left: 4px solid #667eea;
    }

    .requirements-list li strong {
      color: #667eea;
    }

    .solution-box {
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      color: white;
      padding: 30px;
      border-radius: 12px;
      margin-top: 30px;
    }

    .solution-box h4 {
      font-size: 1.3rem;
      margin-bottom: 15px;
    }

    .solution-box ul {
      list-style: none;
      padding: 0;
    }

    .solution-box li {
      padding: 8px 0;
      padding-left: 25px;
      position: relative;
    }

    .solution-box li:before {
      content: "✓";
      position: absolute;
      left: 0;
      font-weight: bold;
    }

    /* CTA Section */
    .cta-section {
      padding: 80px 20px;
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      color: white;
      text-align: center;
    }

    .cta-section h2 {
      font-size: 2.5rem;
      margin-bottom: 20px;
    }

    .cta-section p {
      font-size: 1.2rem;
      margin-bottom: 40px;
      opacity: 0.95;
    }

    .trust-indicators {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 20px;
      max-width: 900px;
      margin: 40px auto 0;
    }

    .trust-item {
      padding: 20px;
      background: rgba(255, 255, 255, 0.1);
      border-radius: 8px;
      font-size: 0.95rem;
    }

    /* FAQ Section */
    .faq-section {
      padding: 80px 20px;
      background: #f8f9fa;
    }

    .faq-accordion {
      max-width: 700px;
      margin: 0 auto;
    }

    .faq-item {
      background: white;
      border-radius: 8px;
      margin-bottom: 12px;
      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
      overflow: hidden;
    }

    .faq-question {
      width: 100%;
      padding: 20px;
      background: none;
      border: none;
      text-align: left;
      font-size: 1rem;
      font-weight: 600;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: color 0.2s;
    }

    .faq-question:hover {
      color: #667eea;
    }

    .faq-icon {
      font-size: 1.5rem;
      font-weight: 300;
      transition: transform 0.2s;
    }

    .faq-question[aria-expanded="true"] .faq-icon {
      transform: rotate(45deg);
    }

    .faq-answer {
      padding: 0 20px 20px;
      color: #666;
      line-height: 1.6;
    }

    .faq-answer[hidden] {
      display: none;
    }

    /* Footer */
    .footer {
      background: #2d3748;
      color: white;
      padding: 40px 20px;
      text-align: center;
    }

    .footer p {
      opacity: 0.8;
    }

    /* Responsive */
    @media (max-width: 768px) {
      .hero h1 {
        font-size: 2rem;
      }

      .hero p {
        font-size: 1.1rem;
      }

      .section-title {
        font-size: 2rem;
      }

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

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

      .nav-links {
        display: none;
      }
    }

    /* Status Badge */
    .status-badge {
      display: inline-block;
      padding: 8px 20px;
      border-radius: 25px;
      font-size: 0.95rem;
      font-weight: 600;
      margin: 20px 0;
    }

    .status-connected {
      background: #d4edda;
      color: #155724;
    }

    .logout-button {
      display: inline-block;
      padding: 12px 30px;
      background: #f5576c;
      color: white;
      border-radius: 8px;
      text-decoration: none;
      font-weight: 600;
      margin-top: 20px;
      transition: all 0.3s;
    }

    .logout-button:hover {
      background: #e04758;
      transform: translateY(-2px);
    }

    .dashboard-link {
      display: inline-block;
      padding: 15px 40px;
      background: #667eea;
      color: white;
      border-radius: 8px;
      text-decoration: none;
      font-size: 1.1rem;
      font-weight: 600;
      margin: 10px;
      transition: all 0.3s;
    }

    .dashboard-link:hover {
      background: #5568d3;
      transform: translateY(-2px);
    }