#ai-chat-button {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 60px;
  height: 60px;
  background: #111;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 9999;
}

#ai-chat-window {
  position: fixed;
  bottom: 100px;
  right: 20px;
  width: 320px;
  height: 420px;
  background: #fff;
  border: 1px solid #ddd;
  display: none;
  flex-direction: column;
  z-index: 9999;
}

#ai-chat-header {
  background: #111;
  color: #fff;
  padding: 10px;
  font-size: 14px;
}

#ai-chat-close {
  float: right;
  cursor: pointer;
}

#ai-chat-messages {
  flex: 1;
  padding: 10px;
  overflow-y: auto;
  font-size: 14px;
}

#ai-chat-input-area {
  display: flex;
  border-top: 1px solid #ddd;
}

#ai-chat-input {
  flex: 1;
  border: none;
  padding: 10px;
  outline: none;
}

#ai-chat-send {
  width: 60px;
  border: none;
  background: #111;
  color: #fff;
}