/* Animación de fondo con animales y elementos de negocios */
@keyframes float {
  0% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-20px) scale(1.05); }
  100% { transform: translateY(0) scale(1); }
}
.bg-animal {
  position: absolute;
  z-index: 0;
  opacity: 0.18;
  animation: float 6s ease-in-out infinite;
}
.bg-animal.animal-1 { left: 5vw; top: 10vh; width: 80px; animation-delay: 0s; }
.bg-animal.animal-2 { right: 8vw; top: 18vh; width: 70px; animation-delay: 1.5s; }
.bg-animal.animal-3 { left: 20vw; bottom: 12vh; width: 90px; animation-delay: 3s; }
.bg-animal.animal-4 { right: 18vw; bottom: 8vh; width: 60px; animation-delay: 2s; }
.bg-animal.animal-5 { left: 50vw; top: 40vh; width: 100px; animation-delay: 4s; }