.hero {
  position: relative;
  height: 300px;
  background: url('assets/img/fond.png') center/cover no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* L'overlay : couche semi-transparente au-dessus de l'image */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5); /* noir à 50% d’opacité */
  z-index: 1;
}

/* Le texte au-dessus de tout */
.hero h1 {
  position: relative;
  color: white;
  font-size: 2.5rem;
  z-index: 2;
  text-align: center;
  text-shadow: 2px 2px 5px rgba(0,0,0,0.6);
}
.hero h1 {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1s ease-out forwards;
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}