/* Configuration du fond selon l'appareil */
body {
  margin: 0;
  padding: 0;
  height: 100vh;
  background-image: url("img/fond-musee.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  font-family: 'Calibri', sans-serif;
  color: white;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

/* Fond pour mobile */
@media (max-width: 768px) {
  body {
    background-image: url("img/fond-musee-mobile.png");
  }
}

/* Menu principal */
.menu {
  background-color: rgba(0, 0, 0, 0.4);
  text-align: center;
  padding: 10px 0;
}

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

.menu > ul > li {
  display: inline-block;
  position: relative;
}

.menu a {
  color: white;
  text-decoration: none;
  padding: 10px 20px;
  display: inline-block;
}

.menu a:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

/* Sous-menus */
.submenu {
  display: none;
  position: absolute;
  background-color: rgba(0, 0, 0, 0.6);
  list-style: none;
  padding: 0;
  margin: 0;
}

.menu li:hover .submenu {
  display: block;
}

.submenu li {
  display: block;
}

.submenu a {
  display: block;
  padding: 8px 20px;
}

/* Pied de page */
footer {
  background-color: rgba(0, 0, 0, 0.5);
  text-align: center;
  padding: 8px;
  font-size: 0.9em;
}