/* Error/Reward Modal Overlay */
.reward-modal-overlay {
  z-index: 3000;
  background: rgba(0, 0, 0, 0.8);
}

.reward-modal {
  max-width: 60vmin;
  width: 85%;
  text-align: center;
  animation: rewardPulse 0.6s ease-out;
}

.reward-header {
  padding: 3vmin;
  border-bottom: 0.2vmin solid rgba(255, 255, 255, 0.3);
}

.reward-header h2 {
  margin: 0;
  font-size: 4vmin;
  font-weight: bold;
  text-shadow: 0 0.2vmin 0.5vmin rgba(0, 0, 0, 0.3);
}

.reward-body {
  padding: 3vmin;
}

.reward-icon {
  font-size: 8vmin;
  margin-bottom: 2vmin;
  animation: bounce 1s infinite;
}

.reward-name {
  font-size: 3.5vmin;
  font-weight: bold;
  margin-bottom: 1.5vmin;
  text-shadow: 0 0.2vmin 0.5vmin rgba(0, 0, 0, 0.5);
}

.reward-message {
  font-size: 2.5vmin;
  margin-bottom: 3vmin;
  opacity: 0.9;
}

.reward-close-btn {
  border: none;
  padding: 2vmin 4vmin;
  border-radius: 2vmin;
  font-size: 2.5vmin;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 0.5vmin 1.5vmin rgba(0, 0, 0, 0.3);
}

.reward-close-btn:hover {
  transform: translateY(-0.2vmin);
  box-shadow: 0 0.7vmin 2vmin rgba(0, 0, 0, 0.4);
}

@keyframes rewardPulse {
  0% {
    transform: translate(-50%, -50%) scale(0.8);
    opacity: 0;
  }
  50% {
    transform: translate(-50%, -50%) scale(1.05);
  }
  100% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
  }
}