.card-login {
  padding: 30px 0 0 0;
  width: 350px;
  margin: 0 auto;
}

.card-abrir-chamado,
.card-consultar-chamado,
.card-home {
  padding: 30px 0 0 0;
  width: 100%;
  margin: 0 auto;
}

a.nav-link {
  color: white;
}
a.nav-link:hover {
  color: #ccc;
}