body {
    background-color: #f5f5f5;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
  }

  .form-container {
    background-color: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    max-width: 500px;
    width: 100%;
    margin-top: 100px; /* compensa a navbar fixa */
  }

  @media (max-width: 576px) {
    .form-container {
      margin: 100px 15px 0 15px; /* topo + laterais responsivas */
      padding: 25px 20px;
    }
  }

  .form-title {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 20px;
    color: #0d47a1;
  }

  .btn-custom {
    background-color: #0d47a1;
    color: white;
  }

  .btn-custom:hover {
    background-color: #08306b;
  }

  .navbar {
    background-color: #84b9f1;
  }

  .navbar-brand img {
    height: 40px;
  }

  .nav-link {
    color: white !important;
  }

  .nav-link:hover {
    color: black !important;
  }