.hero-slide {
  position: relative;
  height: 100vh;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  z-index: 0;
}

.carousel-item:nth-child(1) .hero-slide {
  background-image: url('../img/slider1.jpg');
}

.carousel-item:nth-child(2) .hero-slide {
  background-image: url('../img/slider2.jpg');
}

.carousel-item:nth-child(3) .hero-slide {
  background-image: url('../img/slider3.jpg');
}

/* Overlay oscuro para mejor contraste */
.overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1;
}

/* Contenedor del texto sobre el overlay */
.hero-slide .container {
  position: relative;
  z-index: 2;
}

.hero-slide h1, 
.hero-slide p {
  animation: fadeInUp 1s ease forwards;
  opacity: 0;
  transform: translateY(20px);
  animation-delay: 0.3s;
}

.hero-slide h1 {
  animation-delay: 0.3s;
}

.hero-slide p {
  animation-delay: 0.6s;
}

.hero-slide a.btn {
  animation: fadeInUp 1s ease forwards;
  opacity: 0;
  transform: translateY(20px);
  animation-delay: 0.9s;
}

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