.seccion-animada {
  background: linear-gradient(270deg, #2c3e50, #34495e, #2c3e50);
  background-size: 600% 600%;
  animation: movimientoFondo 15s ease infinite;
  color: white;
  padding: 4rem 1rem;
  text-align: center;
}

@keyframes movimientoFondo {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.scramble {
  font-size: 2.7rem;
  font-weight: bold;
  color: #000;
  position: relative;
  display: inline-block;
  overflow: hidden;
}

.scramble::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    45deg,
    rgba(0, 0, 0, 0.1),
    rgba(0, 0, 0, 0.1) 2px,
    transparent 2px,
    transparent 4px
  );
  mix-blend-mode: difference;
  animation: scrambleMask 1.2s steps(30) forwards;
}

@keyframes scrambleMask {
  0% {
    opacity: 1;
    transform: translateY(0);
  }
  100% {
    opacity: 0;
    transform: translateY(100%);
  }
}

.nivel-card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.nivel-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 12px 20px rgba(0, 0, 0, 0.2);
}