#tutor-assistant-btn {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: #0073e6;
  color: #fff;
  border-radius: 50%;
  width: 60px;
  height: 60px;
  font-size: 28px;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  box-shadow: 0px 4px 8px rgba(0,0,0,0.3);
  z-index: 9999;
}

#tutor-assistant-chat {
  position: fixed;
  bottom: 90px;
  right: 20px;
  width: 350px;
  height: 450px;
  display: none;
  border: 1px solid #ccc;
  border-radius: 12px;
  background: white;
  z-index: 9999;
}