#fullscreen-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  z-index: 2200;
  display: none;
}

#fullscreen-prompt {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: #69219f; /* Purple as pi color*/
  color: #fff;
  padding: 20px;
  border-radius: 10px;
  z-index: 2300;
  max-width: 400px;
  width: 90%;
  text-align: center;
  display: none;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
}

#fullscreen-prompt h2 {
  margin-top: 0;
  color: #007bff;
}

#fullscreen-prompt p {
  margin: 10px 0;
}

#fullscreen-yes, #fullscreen-no {
  background: #007bff;
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: 5px;
  cursor: pointer;
  margin: 5px;
  transition: background 0.2s;
}

#fullscreen-yes:hover, #fullscreen-no:hover {
  background: #f6b130;/* yellow as pi color*/
}