body {
      font-family: 'Segoe UI', sans-serif;
      margin: 0;
      padding: 0;
      background-color: #f4f4f4;
      color: #333;
    }

    header {
      background-color: #2e8b57;
      color: white;
      padding: 1.5rem;
      text-align: center;
    }

    nav {
      background-color: #245e43;
      display: flex;
      justify-content: center;
      gap: 2rem;
      padding: 1rem 0;
    }

    nav a {
      color: white;
      text-decoration: none;
      font-weight: bold;
    }

    nav a:hover {
      text-decoration: underline;
    }

    .intro, .projects, .contact {
      padding: 1.5rem;
      text-align: center;
    }

    .projects {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 1.5rem;
      text-align: left;
    }

    .card {
      background-color: white;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.1);
      padding: 1rem;
    }

    .card h3 {
      margin-top: 0;
    }

    .card a {
      display: inline-block;
      margin-top: 0.5rem;
      text-decoration: none;
      color: #2e8b57;
      font-weight: bold;
    }

    footer {
      text-align: center;
      padding: 1rem;
      background-color: #2e8b57;
      color: white;
      margin-top: 2rem;
    }