body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #111;
  color: #fff;
}

.container {
  max-width: 400px;
  margin: auto;
  padding: 15px;
}

.hint {
  font-size: 12px;
  opacity: 0.6;
}

.chat-box {
  background: #1c1c1c;
  border-radius: 12px;
  padding: 15px;
  height: 500px;
  overflow-y: auto;
}

.msg {
  margin: 10px 0;
  padding: 10px;
  border-radius: 10px;
  max-width: 75%;
}

.bot {
  background: #333;
}

.user {
  background: #ff2e63;
  margin-left: auto;
}

.typing {
  opacity: 0.6;
  font-style: italic;
}

.input-area {
  margin-top: 10px;
}

button {
  width: 100%;
  padding: 12px;
  margin-top: 5px;
  border: none;
  border-radius: 8px;
  background: #ff2e63;
  color: #fff;
  font-size: 16px;
  cursor: pointer;
}

button:hover {
  opacity: 0.9;
}