/* ----- ESTILO BÁSICO ----- */
    body {
      margin: 0;
      font-family: Arial, sans-serif;
      background: #f0f8ff; /* cor de fundo clara */
      color: #000; /* texto preto */
    }

    header {
      background: #004080; /* azul escuro */
      color: white;
      padding: 10px;
    }

    nav {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    nav a {
      color: white;
      text-decoration: none;
      margin: 0 8px;
    }

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

    .hero {
      text-align: center;
      padding: 40px 20px;
      background: #cce6ff; /* azul claro */
    }

    .hero h1 {
      font-size: 28px;
      margin-bottom: 10px;
    }

    .cta a {
      display: inline-block;
      background: #004080;
      color: white;
      padding: 10px 15px;
      margin: 5px;
      border-radius: 5px;
    }

    .features {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 10px;
      padding: 20px;
    }

    .card {
      border: 1px solid #ccc;
      padding: 15px;
      background: white;
    }

    footer {
      background: #004080;
      color: white;
      text-align: center;
      padding: 10px;
      font-size: 12px;
      margin-top: 20px;
    }