body { font-family: 'Segoe UI', sans-serif; } .hero { background-size: cover; }
 
  .bg-overlay {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.4); /* assombrir */
  z-index: -1;
}

/* Active le dropdown au survol */
.nav-item.dropdown:hover .dropdown-menu {
  display: block;
  margin-top: 0; /* supprime le petit décalage */
}

.navbar .dropdown-menu {
  background-color: #fff;
  border-radius: 0;
  border: 1px solid #ddd;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

.card-publication {
  transition: transform 0.2s, box-shadow 0.2s;
}
.card-publication:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}
.card-publication img {
  height: 260px;
  object-fit: cover;
  border-top-left-radius: .5rem;
  border-top-right-radius: .5rem;
}

.object-fit-cover {
  object-fit: cover;
  height: 100%;
}