.top-menu {
  box-shadow: 0 0 8px rgba(0, 0, 0, .3);
  position: sticky;
  top: 0;
  z-index: 1001;
  background: #4a4a4a;
}

.main-menu {
  padding: 0;
  margin: 0;
  list-style: none;
}

.main-menu > li {
  list-style: none;
}

.main-menu .nav-link {
  color: rgba(255, 255, 255, .9);
}

.main-menu .nav-link:hover,
.main-menu .nav-link:focus,
.main-menu .nav-link.show {
  color: #fff;
  background-color: #3379b7;
  border-radius: 0.25rem;
}

.main-menu .dropdown-item {
  padding: 0.35rem 1rem;
  white-space: nowrap;
}

.main-menu .dropdown-item:hover,
.main-menu .dropdown-item:focus,
.main-menu .dropdown-item:active {
  color: #fff;
  background-color: #3379b7;
}

.icon-menu {
  list-style: none;
  padding: 0;
  margin: 0;
  gap: .5rem;
}

.icon-menu .nav-link {
  color: #fff;
  padding: .5rem .75rem;
}

.icon-menu .nav-link:hover,
.icon-menu .nav-link:focus {
  color: #fff;
  background-color: #3379b7;
  border-radius: 0.25rem;
}

.logotipo {
  font-size: 1.1rem;
  white-space: nowrap;
}

/* Dropdown raiz (Cadastro, etc.) */
.navbar .main-menu > .nav-item > .dropdown-menu {
  position: absolute !important;
  min-width: 14rem;
  max-height: 70vh;
  overflow-x: hidden;
  overflow-y: auto;
  font-size: 0.875rem;
  background-color: #fff;
  z-index: 1050;
}

.navbar .main-menu .dropdown-menu > li {
  display: block !important;
  width: 100%;
  list-style: none;
}

/* Submenus: escondidos por padrão; JS posiciona com fixed */
.navbar .main-menu .dropdown-submenu > .dropdown-menu {
  display: none;
  min-width: 12rem;
  max-height: 70vh;
  overflow-y: auto;
  padding: 0.25rem 0;
  background-color: #fff !important;
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
  z-index: 1060;
}

.navbar .main-menu .dropdown-submenu.show > .dropdown-menu {
  display: block !important;
}

.navbar .main-menu .dropdown-submenu > .dropdown-item::after {
  display: inline-block;
  margin-left: 0.5rem;
  vertical-align: 0.15em;
  content: "";
  border-top: 0.3em solid transparent;
  border-bottom: 0.3em solid transparent;
  border-left: 0.3em solid;
  float: none;
}

/* Mobile: empilha sem fixed */
@media (max-width: 991.98px) {
  .navbar .main-menu .dropdown-submenu > .dropdown-menu {
    position: static !important;
    top: auto !important;
    left: auto !important;
    box-shadow: none;
    border: 0;
    padding-left: 0.75rem;
  }
}