#mensaje-overlay {
  display: none;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0, 0, 0, 0.85);
  color: white;
  padding: 24px 32px;
  border-radius: 12px;
  font-family: sans-serif;
  font-size: 48px;
  text-align: center;
  z-index: 9999;
  max-width: 520px;
  pointer-events: all;
}

#mensaje-overlay button {
  margin-top: 16px;
  padding: 8px 24px;
  background: white;
  color: black;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
}