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

    body {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      line-height: 1.6;
      color: #333;
    }

    .navbar {
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      padding: 1rem 5%;
      display: flex;
      justify-content: space-between;
      align-items: center;
      box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    }

    .logo {
      font-size: 1.5rem;
      font-weight: bold;
      color: white;
    }

    .nav-links {
      display: flex;
      list-style: none;
      gap: 2rem;
    }

    .nav-links a {
      color: white;
      text-decoration: none;
      transition: opacity 0.3s;
    }

    .nav-links a:hover {
      opacity: 0.8;
    }

    .hero {
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      padding: 5rem 5%;
      color: white;
    }

    .hero-content {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 3rem;
      align-items: center;
      max-width: 1200px;
      margin: 0 auto;
    }

    .hero-text h1 {
      font-size: 3rem;
      margin-bottom: 1rem;
    }

    .hero-text p {
      font-size: 1.2rem;
      margin-bottom: 2rem;
      opacity: 0.9;
    }

    .cta-buttons {
      display: flex;
      gap: 1rem;
    }

    .btn {
      padding: 0.8rem 2rem;
      border-radius: 5px;
      text-decoration: none;
      font-weight: 600;
      transition: transform 0.3s;
    }

    .btn:hover {
      transform: translateY(-2px);
    }

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

    .btn-secondary {
      background: transparent;
      color: white;
      border: 2px solid white;
    }

    .hero-image svg {
      width: 100%;
      max-width: 400px;
    }

    .services {
      padding: 5rem 5%;
      background: #f8f9fa;
    }

    .section-title {
      text-align: center;
      font-size: 2.5rem;
      margin-bottom: 1rem;
      color: #667eea;
    }

    .section-subtitle {
      text-align: center;
      color: #666;
      margin-bottom: 3rem;
    }

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

    .service-card {
      background: white;
      padding: 2rem;
      border-radius: 10px;
      box-shadow: 0 4px 6px rgba(0,0,0,0.1);
      transition: transform 0.3s;
    }

    .service-card:hover {
      transform: translateY(-5px);
    }

    .service-icon {
      font-size: 3rem;
      margin-bottom: 1rem;
    }

    .service-card h3 {
      color: #667eea;
      margin-bottom: 0.5rem;
    }

    .stats {
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      padding: 4rem 5%;
      color: white;
    }

    .stats-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 2rem;
      max-width: 1200px;
      margin: 0 auto;
      text-align: center;
    }

    .stat-item h2 {
      font-size: 3rem;
      margin-bottom: 0.5rem;
    }

    footer {
      background: #2d3748;
      color: white;
      text-align: center;
      padding: 2rem;
    }

    /* Chat Styles */
    .chat-toggle {
      position: fixed;
      bottom: 20px;
      right: 20px;
      z-index: 1000;
    }

    .chat-toggle button {
      width: 60px;
      height: 60px;
      border-radius: 50%;
      border: none;
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      font-size: 1.5rem;
      cursor: pointer;
      box-shadow: 0 4px 12px rgba(0,0,0,0.3);
      transition: transform 0.3s;
    }

    .chat-toggle button:hover {
      transform: scale(1.1);
    }

    .chat-panel {
      position: fixed;
      bottom: 90px;
      right: 20px;
      width: 380px;
      max-height: 600px;
      background: white;
      border-radius: 15px;
      box-shadow: 0 10px 40px rgba(0,0,0,0.2);
      display: none;
      flex-direction: column;
      z-index: 1000;
    }

    .chat-panel.open {
      display: flex;
    }

    .chat-header {
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      color: white;
      padding: 1rem;
      border-radius: 15px 15px 0 0;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .chat-header .title {
      display: flex;
      flex-direction: column;
      gap: 0.3rem;
    }

    .chat-header .shield {
      font-size: 0.75rem;
      opacity: 0.9;
      display: flex;
      align-items: center;
      gap: 0.3rem;
    }

    .chat-header button {
      background: transparent;
      border: none;
      color: white;
      font-size: 1.5rem;
      cursor: pointer;
      padding: 0;
      width: 30px;
      height: 30px;
    }

    .chat-log {
      flex: 1;
      overflow-y: auto;
      padding: 1rem;
      display: flex;
      flex-direction: column;
      gap: 0.8rem;
      max-height: 400px;
    }

    .message {
      padding: 0.8rem;
      border-radius: 10px;
      max-width: 85%;
      word-wrap: break-word;
    }

    .message.user {
      background: #667eea;
      color: white;
      align-self: flex-end;
    }

    .message.assistant {
      background: #f0f0f0;
      color: #333;
      align-self: flex-start;
    }

    .message.error {
      background: #fee;
      color: #c33;
      align-self: flex-start;
      border-left: 3px solid #c33;
    }

    .message.warning {
      background: #fff3cd;
      color: #856404;
      align-self: flex-start;
      border-left: 3px solid #ffc107;
    }

    .message.typing {
      background: #f0f0f0;
      color: #666;
      align-self: flex-start;
      font-style: italic;
    }

    .chat-input {
      display: flex;
      gap: 0.5rem;
      padding: 1rem;
      border-top: 1px solid #e0e0e0;
    }

    .chat-input input {
      flex: 1;
      padding: 0.8rem;
      border: 1px solid #ddd;
      border-radius: 8px;
      font-size: 0.9rem;
    }

    .chat-input button {
      padding: 0.8rem 1.5rem;
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      color: white;
      border: none;
      border-radius: 8px;
      cursor: pointer;
      font-weight: 600;
      transition: opacity 0.3s;
    }

    .chat-input button:hover {
      opacity: 0.9;
    }

    .chat-input button:disabled {
      opacity: 0.5;
      cursor: not-allowed;
    }

    .disclaimer {
      padding: 0.8rem;
      font-size: 0.75rem;
      color: #666;
      text-align: center;
      border-top: 1px solid #e0e0e0;
      background: #f9f9f9;
    }

    @media (max-width: 768px) {
      .hero-content {
        grid-template-columns: 1fr;
      }

      .chat-panel {
        width: calc(100vw - 40px);
        max-width: 380px;
      }
    }