body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    background-color: #f4f4f4;
    color: #333;
  }
  
  header {
    background: #35424a;
    color: #fff;
    padding: 1rem 0;
    text-align: center;
  }
  
  header h1 {
    margin: 0;
    font-size: 2.5rem;
  }
  
  header p {
    font-size: 1.2rem;
  }
  
  .navbar {
    display: flex;
    justify-content: center;
    list-style: none;
    background: #35424a;
    margin: 0;
    padding: 0;
  }
  
  .navbar li {
    margin: 0;
  }
  
  .navbar a {
    color: #fff;
    text-decoration: none;
    padding: 1rem;
    display: block;
    transition: background 0.3s;
  }
  
  .navbar a:hover {
    background: #1d2930;
  }
  
  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
  }
  
  main section {
    margin: 2rem 0;
  }
  
  main h2 {
    color: #35424a;
    border-bottom: 2px solid #ddd;
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
  }
  
  .bookshelf img,
  .mutuas-gallery img {
    width: 150px;
    height: auto;
    margin: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 5px;
  }
  
  .bookshelf {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .mutuas-gallery {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
  }
  
  form {
    display: flex;
    flex-direction: column;
  }
  
  form label {
    margin-bottom: 0.5rem;
    font-weight: bold;
  }
  
  form input, form textarea {
    margin-bottom: 1rem;
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 5px;
  }
  
  form button {
    background: #35424a;
    color: #fff;
    border: none;
    padding: 0.7rem;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s;
  }
  
  form button:hover {
    background: #1d2930;
  }
  
  footer {
    background: #35424a;
    color: #fff;
    text-align: center;
    padding: 1rem 0;
    margin-top: 2rem;
  }