body {
  font-family: Arial, sans-serif;
  background: #f7f7f7;
  padding: 2rem;
}
.chat-container {
  max-width: 600px;
  margin: auto;
  background: white;
  padding: 1rem;
  border-radius: 8px;
}
#chat-box {
  max-height: 300px;
  overflow-y: auto;
  margin-bottom: 1rem;
}
.user {
  color: blue;
  margin: 5px 0;
}
.bot {
  color: green;
  margin: 5px 0;
}
textarea {
  width: 100%;
  height: 60px;
}
button {
  margin-top: 5px;
  padding: 10px 20px;
}