body {
      margin: 0;
      font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
      background: linear-gradient(135deg, #0b62a4, #00a4e4);
      display: flex;
      flex-direction: column;
      min-height: 100vh;
      justify-content: space-between;
    }

    header {
      text-align: center;
      padding: 0.5rem;
      background: #fff; /* fundo branco para o logo não se perder */
      box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    }

    header img.logo {
      max-width: 320px;
    }

    main {
      flex: 1;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      padding: 2rem;
    }

    .card {
      background: #fff;
      border-radius: 20px;
      box-shadow: 0 8px 22px rgba(0,0,0,0.2);
      padding: 2rem;
      max-width: 640px; /* caixa maior */
      width: 100%;
      animation: fadeIn 0.8s ease-in-out;
    }

    .card a img {
      width: 100%; /* imagem ocupa toda a largura da caixa */
      border-radius: 12px;
      transition: transform 0.3s ease;
    }

    .card a img:hover {
      transform: scale(1.02);
    }

    .card h2 {
      margin-top: 1.5rem;
      font-size: 1.6rem;
      color: #0b62a4;
    }

    .links {
      margin-top: 2rem;
      font-size: 1rem;
    }

    .links a {
      color: #0b62a4;
      text-decoration: none;
      margin: 0 1rem;
      font-weight: 500;
      transition: color 0.3s;
    }

    .links a:hover {
      color: #00a4e4;
    }

    footer {
      text-align: center;
      padding: 1rem;
      background: #0b62a4;
      color: #eee;
      font-size: 0.9rem;
    }

    footer a {
      color: #00a4e4;
      text-decoration: none;
      margin-left: 0.5rem;
      font-weight: 500;
    }

    @keyframes fadeIn {
      from {opacity: 0; transform: translateY(20px);}
      to {opacity: 1; transform: translateY(0);}
    }

    @media (max-width: 600px) {
      .card {
        padding: 1.5rem;
      }
      header img.logo {
        max-width: 240px;
      }
    }