body {
  background-color: #f0f8ff;
  font-family: Arial, sans-serif;
  color: #333;
  margin: 0;
  padding: 0;
}

label {

  margin: 5px 0px 5px 5px;
  display: block;
  margin-bottom: 8px;
  color: #333;
}

.menu-item {
  margin: 5px;
  width: 200px;
  /* Defina o tamanho desejado */
  text-align: center;
  /* Centraliza o texto */
  padding: 10px;
  /* Adiciona um pouco de espaço interno */
  border: 1px solid #000;
  /* Adiciona uma borda para visualização */
  /*background-color: #3498db;*/
}

#iframe-container {
  padding: 5px 0px 0px 0px;
  margin: 20px 0px 0px 0px;
}

#iframe-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.topnav {
  overflow: hidden;
  background-color: #007BFF;
}

.topnav a {
  float: left;
  display: block;
  color: #f2f2f2;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 17px;
}

.topnav a:hover {
  background-color: #0a3857;
  color: #fff;
}

.topnav a.active {
  background-color: #007BFF;
  color: white;
}

.topnav .icon {
  display: none;
}

.container {
  /*max-width: 800px;*/
  margin: 50px auto;
  padding: 20px;
  background-color: #fff;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  border-radius: 10px;
  text-align: center;
}

h1 {
  font-family: "Archivo Black", sans-serif;
  font-weight: 400;
  font-style: normal;
  font-size: 1.5em;
  color: #000000;
  text-align: center;
  margin-top: 20px;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

h2 {
  text-align: center;
  color: #2c3e50;
  /*font-size: 2.5em;*/
  margin-bottom: 20px;
}

h3 {
  width: 100%;
  color: #2c3e50;
  text-align: center;
  margin-bottom: 20px;
}

h4 {
  margin: 5px;
  color: #2c3e50;
  margin-bottom: 20px;
}

p {
  font-size: 1.0em;
  line-height: 1.6;
  margin-bottom: 20px;
}

a {
  display: inline-block;
  padding: 10px 20px;
  background-color: #3498db;
  color: #fff;
  text-decoration: none;
  border-radius: 5px;
  transition: background-color 0.3s ease;
}

a:hover {
  background-color: #0a3857;
}

.container p:last-child {
  margin-top: 30px;
}

.container p:last-child a {
  font-size: 1.2em;
  font-weight: bold;
}

.topnav .logo {
  height: 40px;
  /* Ajuste a altura conforme necessário */
  vertical-align: middle;
  margin: 0px;
  /* Espaço entre o logo e o texto */
}

.logo2 {
  height: 270px;
  /* Ajuste a altura conforme necessário */
}

form,
main,
table {
  width: 90%;
  margin: auto;
}


/*CELUAR*/
/* Media Queries para Responsividade */
@media screen and (max-width: 768px) {
  nav ul {
    flex-direction: column;
    align-items: center;
  }

  form,
  main,
  table {
    width: 100%;
    margin: 10px 0px 10px 0px;
  }

  form.form_registar {
    margin: 0px;
    padding: 20px;
    /*background-color: red;*/

  }

  input[type="submit"] {
    background-color: #007BFF;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
  }

  input[type="text"],
  input[type="email"],
  input[type="password"],
  select {
    width: 95%;
    margin: 0% 0% 0% 2%;
    padding: 10px;
    margin-bottom: 20px;
    border: 1px solid black;
    border-radius: 4px;
  }

  input[type="submit"],
  button {
    margin: 0px;
    /*width: 98%;*/
    padding: 10px 20px;
    background-color: #007BFF;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
  }

  button_2 {
    margin: 0px;
    width: 98%;
  }

  th,
  td {
    padding: 10px;
  }

  .form_registrar {
    margin: 0;
    padding: 0 0 0 0;

  }

  .topnav a:not(:first-child) {
    display: none;
  }

  .topnav a.icon {
    float: right;
    display: block;
    margin: 10px auto;
  }


  .topnav.responsive {
    position: relative;
  }

  .topnav.responsive .icon {
    position: absolute;
    right: 0;
    top: 0;
  }

  .topnav.responsive a {
    float: none;
    display: block;
    text-align: left;
  }

  .menu-item {
    margin: 8px 0px 8px 0px;
    width: 99%;
    /* Defina o tamanho desejado */
    text-align: center;
    /* Centraliza o texto */
    padding: 10px 0px 10px 0px;
    /* Adiciona um pouco de espaço interno */
    border: 1% solid #000;
    /* Adiciona uma borda para visualização */
    /*background-color: #3498db;*/
  }
}