/* ---------------------------------------------------- */
/* 1. BARRA DE NAVEGAÇÃO E CLEARFIX                      */
/* ---------------------------------------------------- */

.barra-navegacao {
  background-color: #E6E6FA; 
  width: 100%;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.barra-navegacao::after {
  content: "";
  display: table;
  clear: both;
}

/* ---------------------------------------------------- */
/* 2. MENU PRINCIPAL                                    */
/* ---------------------------------------------------- */

.menu-principal {
  list-style: none;
  padding: 0;
  margin: 0;
  float: right;
}

.menu-principal li {
  float: left; 
}

.menu-principal li a {
  display: block;
  padding: 15px 20px;
  text-decoration: none;
  color: #333; 
  font-weight: bold;
}

.menu-principal li a:hover {
  background-color: #87cefa; 
  color: white;
}

/* ---------------------------------------------------- */
/* 3. DROPDOWN – NÍVEL 1                                */
/* ---------------------------------------------------- */

.dropdown {
  position: relative; /* âncora do submenu */
  display: inline-block;
}

.submenu_n1 {
  list-style: none;
  padding: 0;
  margin: 0;

  position: absolute;
  top: 100%;
  left: 0;

  min-width: 200px;
  background-color: #f9f9f9;
  box-shadow: 0px 8px 16px rgba(0,0,0,0.2);
  z-index: 10;

  visibility: hidden;
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity 0.3s ease,
              visibility 0.3s ease,
              transform 0.3s ease;
}

.submenu_n1 li {
  float: none;
  display: block;
  position: relative; /* âncora do nível 2 */
}

.submenu_n1 li a {
  padding: 6px 14px;
  color: #333;
  background-color: #f9f9f9;
  text-align: left;
}

.submenu_n1 li a:hover {
  background-color: #e9e9e9;
  color: #000;
}

.dropdown:hover > .submenu_n1 {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
}

/* ---------------------------------------------------- */
/* 4. DROPDOWN – NÍVEL 2 (PADRÃO: DIREITA)               */
/* ---------------------------------------------------- */

.Submenu_n2 {
  list-style: none;
  padding: 0;
  margin: 0;

  position: absolute;
  top: 0;
  left: 100%;

  min-width: 200px;
  background-color: #f9f9f9;
  box-shadow: 0px 8px 16px rgba(0,0,0,0.2);
  z-index: 20;

  visibility: hidden;
  opacity: 0;
  transform: translateX(-10px);
  transition: opacity 0.3s ease,
              visibility 0.3s ease,
              transform 0.3s ease;
}

/* mostra nível 2 */
.submenu_n1 li:hover > .Submenu_n2 {
  visibility: visible;
  opacity: 1;
  transform: translateX(0);
}

/* ---------------------------------------------------- */
/* 5. INVERSÃO MANUAL DO NÍVEL 2                         */
/* ---------------------------------------------------- */

.Submenu_n2.inverter {
  left: auto;
  right: 100%;
  transform: translateX(10px);
}

.submenu_n1 li:hover > .Submenu_n2.inverter {
  transform: translateX(0);
}

/* ---------------------------------------------------- */
/* 6. LOGO                                              */
/* ---------------------------------------------------- */

.logo-link {
  float: left;
  padding: 10px 15px;
}

.logo-nav {
  height: 30px;
  width: auto;
  display: block;
}