/* ==============================================================================
   PROYECTO: "PARA BARBI ❤️"
   ANIMACIONES SUAVES Y TRANSICIONES PARA LA CARTA
   ============================================================================== */

@keyframes letterUnfold {
  0% {
    opacity: 0;
    transform: translateY(30px) scale(0.97);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes pulseSeal {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 6px 18px var(--seal-shadow);
  }
  50% {
    transform: scale(1.05);
    box-shadow: 0 10px 24px var(--seal-shadow);
  }
}

@keyframes fadeInPaper {
  from {
    opacity: 0;
    transform: translateY(15px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.anim-seal-pulse {
  animation: pulseSeal 3s infinite ease-in-out;
}

.anim-letter-open {
  animation: letterUnfold 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

.anim-fade-paper {
  animation: fadeInPaper 0.7s ease forwards;
}

@media (prefers-reduced-motion: reduce) {
  *, ::before, ::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}