header {
      background-color: #006d77;
      color: white;
      padding: 15px 30px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    header a {
      color: white;
      text-decoration: none;
      font-weight: bold;
    }
    .container {
      max-width: 700px;
      margin: 40px auto;
      padding: 30px;
      background: #fff;
      box-shadow: 0 0 10px rgba(0,0,0,0.05);
      border-radius: 8px;
    }
    h1, h2 {
      color: #006d77;
    }
    h1 {
      font-size: 2rem;
      margin-bottom: 0.5rem;
    }
    h2 {
      margin-top: 2rem;
      font-size: 1.2rem;
    }
    p {
      margin-bottom: 1rem;
    }
    ul {
      margin-bottom: 1rem;
      padding-left: 20px;
    }
    a {
      color: #006d77;
      text-decoration: underline;
    }