/* Custom scrollbar untuk letter card */
.custom-scrollbar::-webkit-scrollbar {
  width: 6px;
}

.custom-scrollbar::-webkit-scrollbar-track {
  background: transparent;
}

.custom-scrollbar::-webkit-scrollbar-thumb {
  background-color: rgba(244, 63, 108, 0.2);
  border-radius: 9999px;
}

.custom-scrollbar::-webkit-scrollbar-thumb:hover {
  background-color: rgba(244, 63, 108, 0.4);
}

/* Animasi ambient glow di latar belakang */
@keyframes ambient-float {
  0%, 100% {
    transform: translate(0, 0) scale(1);
    opacity: 0.2;
  }
  50% {
    transform: translate(30px, -40px) scale(1.1);
    opacity: 0.35;
  }
}

.ambient-glow {
  animation: ambient-float 12s ease-in-out infinite alternate;
}

/* Gaya perspektif 3D untuk lipatan amplop */
#envelope-flap {
  transform-style: preserve-3d;
  backface-visibility: hidden;
}

.foto-polaroid{
    width: 250px;
    height: 330px;
    object-fit: cover;
    border: 10px solid #fff;
    border-bottom: 40px solid #fff;
    border-radius: 5px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.2);
}