.no-paste-msg {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  background-color: #ff4b4b;
  color: #fff;
  font-family: sans-serif;
  font-size: 15px;
  padding: 12px 20px;
  border-radius: 8px;
  box-shadow: 0 3px 10px rgba(0,0,0,0.2);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 9999;
}
.no-paste-msg.show {
  opacity: 1;
}