@keyframes stampPop {
  0% {
    transform: scale(0.9) translateY(10px);
    opacity: 0;
  }
  60% {
    transform: scale(1.03) translateY(-3px);
  }
  100% {
    transform: scale(1) translateY(0);
    opacity: 1;
  }
}

.stamp-card {
  animation: stampPop 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.stamp-card.new-stamp {
  animation: stampPop 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes reactionBurst {
  0% { transform: scale(1); }
  40% { transform: scale(1.25); }
  100% { transform: scale(1); }
}

.stamp-react:active {
  animation: reactionBurst 0.3s ease-out;
}

@keyframes reactionPulse {
  0% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(255, 107, 107, 0.7);
  }
  50% {
    transform: scale(1.05);
    box-shadow: 0 0 0 10px rgba(255, 107, 107, 0);
  }
  100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(255, 107, 107, 0);
  }
}

.stamp-react.reacted {
  animation: reactionPulse 0.5s ease-out;
}

.stamp-card {
  transition: all 0.2s ease;
}

.stamp-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(255, 107, 107, 0.2);
}

.stamps-list {
  opacity: 0;
  animation: fadeIn 0.3s ease-in forwards;
}

@keyframes fadeIn {
  to { opacity: 1; }
}