* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    
    body {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      line-height: 1.6;
      color: #333;
    }
    
    header {
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      color: white;
      padding: 2rem;
      text-align: center;
    }
    
    header h1 {
      font-size: 2.5rem;
      margin-bottom: 0.5rem;
    }
    
    header p {
      font-size: 1.1rem;
      opacity: 0.9;
    }
    
    section {
      max-width: 1000px;
      margin: 2rem auto;
      padding: 2rem;
    }
    
    .projects {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 2rem;
    }
    
    .project-card {
      background: #f4f4f4;
      padding: 1.5rem;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.1);
      transition: transform 0.3s;
    }
    
    .project-card:hover {
      transform: translateY(-5px);
    }
    
    .project-card h3 {
      color: #667eea;
      margin-bottom: 0.5rem;
    }
    
    footer {
      background: #333;
      color: white;
      text-align: center;
      padding: 2rem;
      margin-top: 3rem;
    }