/* ============================================================
   menu.css — Menu de navigation full CSS, AAC-CEA Archéo
   ============================================================ */

/* --- Barre fixe en haut --------------------------------------- */
#main-nav {
  background-color: var(--color-menu-bg);
  font-family: var(--font-sans);
  font-size: 1.05rem;
  height: var(--nav-height);
  left: 0;
  position: fixed;
  right: 0;
  top: 0;
  z-index: 1000;
}

/* --- Liste racine (niveau 1) ---------------------------------- */
#main-nav > ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  height: 100%;
}

#main-nav li {
  position: relative;
}

#main-nav > ul > li:not(:last-child) {
  border-right: 1px solid #7A4F28;
}

/* --- Liens ---------------------------------------------------- */
#main-nav a {
  display: flex;
  align-items: center;
  height: var(--nav-height);
  padding: 0 1rem;
  color: #F5EDD8;
  text-decoration: none;
  background-color: var(--color-menu-bg);
  white-space: nowrap;
  cursor: pointer;
}

#main-nav a:hover,
#main-nav a:focus {
  background-color: var(--color-link-hover);
  color: #FFFFFF;
}

/* --- Sous-menus (niveau 2) ------------------------------------ */
#main-nav ul ul {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  z-index: 1020;
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid #7A4F28;
  min-width: 240px;
  background-color: #7A4F28;
}

/* Ouvrir au survol ET au focus clavier (accessibilité) */
#main-nav li:hover > ul,
#main-nav li:focus-within > ul {
  display: block;
}

#main-nav ul ul li {
  border-bottom: 1px solid var(--color-menu-bg);
}

#main-nav ul ul a {
  height: auto;
  padding: 0.55em 1rem;
  background-color: #7A4F28;
  color: #F5EDD8;
  border-right: none;
}

#main-nav ul ul a:hover,
#main-nav ul ul a:focus {
  background-color: var(--color-link-hover);
  color: #FFFFFF;
}

/* --- Sous-sous-menus (niveau 3) ------------------------------- */
#main-nav ul ul ul {
  top: 0;
  left: 100%;
}

/* --- Indicateurs visuels de sous-menus ------------------------ */
#main-nav a.has-submenu::after {
  content: ' \25BC';
  font-size: 0.9em;
  margin-left: 0.6em;
  opacity: 0.8;
}

#main-nav ul ul a.has-submenu::after {
  content: ' \25BA';
  font-size: 0.9em;
  margin-left: 0.6em;
  opacity: 0.8;
}