* {
  box-sizing: border-box;
}

/* Contenedor */
.navx-wrapper {
  background: #0a2540;
  color: #fff;
  width: 100%;
}

/* Botón móvil */
.navx-toggle {
  display: none;
  background: #0a2540;
  color: #fff;
  border: none;
  font-size: 1.2rem;
  padding: 1rem;
  width: 100%;
  cursor: pointer;
}

/* Lista principal */
.navx-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.navx-list li {
  border-top: 1px solid rgba(255,255,255,0.15);
}

.navx-list a {
  display: block;
  padding: 1rem;
  color: #fff;
  text-decoration: none;
}

/* Submenús con SLIDE */
.navx-sub {
  max-height: 0;
  overflow: hidden;
  background: #133b63;
  transition: max-height 0.4s ease;
}

/* Estado abierto */
li.navx-open > .navx-sub {
  max-height: 1000px; /* suficiente para 5 niveles */
}

/* Flecha */
.navx-has-sub::after {
  content: "▸";
  float: right;
  transition: transform 0.3s ease;
}

li.navx-open > .navx-has-sub::after {
  transform: rotate(90deg);
}

/* Desktop */
@media (min-width: 7000px) {
  .navx-toggle {
    display: none;
  }

  .navx-list {
    display: flex;
  }

  .navx-list > li {
    position: relative;
  }

  .navx-sub {
    position: absolute;
    left: 0;
    top: 100%;
    width: 220px;
    max-height: 0;
  }

  .navx-sub .navx-sub {
    top: 0;
    left: 100%;
  }
}

/* 🔹 Mobile */
@media (max-width: 1px) {
  .navx-toggle {
    display: block;
  }

  .navx-list {
    display: none;
  }

  .navx-list.navx-active {
    display: block;
  }
}