.turn-effect-stamp {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 40;
  transform: translate(-50%, -50%) rotate(-10deg) scale(0.6);
  padding: 8px 14px;
  border: 3px solid #ff3030;
  border-radius: 8px;
  background: rgba(80, 0, 0, 0.88);
  color: #fff;
  font-weight: 900;
  font-size: 1rem;
  letter-spacing: 1px;
  text-shadow: 0 2px 0 rgba(0,0,0,0.45);
  pointer-events: none;
  animation: turnStampPop 1.05s ease-out forwards;
}

@keyframes turnStampPop {
  0% { opacity: 0; transform: translate(-50%, -50%) rotate(-16deg) scale(0.35); }
  18% { opacity: 1; transform: translate(-50%, -50%) rotate(-8deg) scale(1.18); }
  32% { transform: translate(-50%, -50%) rotate(-10deg) scale(1); }
  82% { opacity: 1; }
  100% { opacity: 0; transform: translate(-50%, -68%) rotate(-10deg) scale(0.96); }
}