.menu-principal {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1px;
}

.menu-item {
  flex: 1 1 125px;
  min-width: 125px;
  box-sizing: border-box;
  padding: 10px 6px 9px;
  /*border-top: 8px solid #538cb9;*/
  background-image: linear-gradient(#172f4b, #284469);
  color: #ffffff;
  font-family: "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  font-size: 12px;
  /*font-weight: bold;*/
  letter-spacing: 0.06em;
  line-height: 1.1;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
}

.menu-item:hover,
.menu-item:focus {
  background-image: linear-gradient(#20406a, #35608f);
  color: #ffffff;
  text-decoration: none;
}

.menu-item.menu-ativo {
  background-image: linear-gradient(#5389b5, #457599);
}

.menu-item:focus-visible {
  outline: 2px solid #ffffff;
  outline-offset: -4px;
}

@media (max-width: 900px) {

  .menu-principal {
    max-width: 516px;
    margin-left: auto;
    margin-right: auto;
  }

  .menu-item {
    flex: 1 1 24%;
    min-width: 0;
    max-width: 25%;
    font-size: 12px;
  }
}

.menu-botao {
  display: none;
}

@media (max-width: 600px) {

  .menu-principal {
    max-width: none;
  }

  .menu-item {
    flex: 1 1 32%;
    max-width: 32%;
    padding: 9px 4px 8px;
    border-top-width: 6px;
  }

  .tem-js .menu-botao {
    display: block;
  }

  .menu-botao {
    width: 100%;
    box-sizing: border-box;
    margin: 0;
    padding: 15px 14px 13px;
    border: 0;
    border-top: 8px solid #538cb9;
    background-image: linear-gradient(#172f4b, #284469);
    color: #ffffff;
    font-family: "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
    font-size: 15px;
    font-weight: bold;
    letter-spacing: 0.08em;
    text-align: left;
    text-transform: uppercase;
    cursor: pointer;
  }

  .menu-botao:focus-visible {
    outline: 2px solid #ffffff;
    outline-offset: -4px;
  }

  .tem-js .menu-principal {
    display: none;
  }

  .tem-js .menu-principal.aberto {
    display: block;
  }

  .tem-js .menu-principal.aberto .menu-item {
    display: block;
    max-width: none;
    padding: 15px 18px 13px;
    border-top: 1px solid #6f9dc4;
    font-size: 12px;
    text-align: left;
  }
}