body {
    font-family: 'Segoe UI', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
  }
  
  header {
    background-color: #333;
    color: white;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  header nav a {
    color: white;
    margin-left: 1rem;
    text-decoration: none;
  }
  
  main {
    padding: 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
  }
  
  .project-card {
    background-color: white;
    padding: 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    text-align: center;
  }
  
  .project-card img {
    max-width: 100%;
    border-radius: 5px;
  }
  
  .btn {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.5rem 1rem;
    background-color: #0077cc;
    color: white;
    text-decoration: none;
    border-radius: 4px;
  }
  
  footer {
    background-color: #222;
    color: white;
    text-align: center;
    padding: 1rem;
    margin-top: 2rem;
  }