#chat-container {
  width: 100%;
  max-width: 600px;
  margin: 20px auto;
  font-family: Arial, sans-serif;
}

#chat {
  border: 1px solid #ccc;
  padding: 10px;
  height: 400px;
  overflow-y: auto;
  background: #fefefe;
}

#input {
  width: 75%;
  padding: 6px;
  margin-top: 10px;
}

#send {
  padding: 6px 12px;
  margin-left: 5px;
}

.user {
  color: #007bff;
  margin: 5px 0;
}

.gpt {
  color: #28a745;
  margin: 5px 0;
}