body {
  font-family: 'Arial', sans-serif;
  margin: 0;
  padding: 0;
  background-color: #1a1a1a;
  color: #f5f5f5;
}

header {
  text-align: center;
  padding: 20px;
  background-color: #000000;
  color: #ffffff;
}

header h1 {
  margin: 0;
  font-size: 2rem;
}

header p {
  font-size: 1.2rem;
  opacity: 0.8;
}

main {
  display: flex;
  justify-content: center;
  margin: 20px;
}

#chat-container {
  width: 90%;
  max-width: 600px;
  background-color: #2b2b2b;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

#chat-window {
  height: 400px;
  overflow-y: auto;
  padding: 15px;
  color: #f5f5f5;
}

#chat-window .user-message {
  text-align: right;
  margin: 10px 0;
}

#chat-window .bot-message {
  text-align: left;
  margin: 10px 0;
}

#chat-input {
  display: flex;
  padding: 10px;
  background-color: #1a1a1a;
}

#user-input {
  flex: 1;
  padding: 10px;
  background-color: #333;
  color: #f5f5f5;
  border: none;
  border-radius: 5px;
}

#send-btn {
  padding: 10px 15px;
  background-color: #007bff;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  margin-left: 10px;
}

#send-btn:hover {
  background-color: #0056b3;
}

footer {
  text-align: center;
  padding: 10px;
  font-size: 0.8rem;
  background-color: #000000;
  color: #ffffff;
}