body {
  font-family: 'Segoe UI', sans-serif;
  background: #f5f5f5;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
}

.chat-container {
  width: 350px;
  background: white;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.chat-header {
  background: #007bff;
  color: white;
  padding: 15px;
  font-size: 18px;
  text-align: center;
}

.chat-box {
  padding: 15px;
  height: 300px;
  overflow-y: auto;
  border-bottom: 1px solid #ddd;
}

.message {
  margin: 10px 0;
}

.user {
  text-align: right;
  color: #007bff;
}

.bot {
  text-align: left;
  color: #333;
}

.chat-input {
  display: flex;
  padding: 10px;
  gap: 10px;
}

.chat-input input {
  flex: 1;
  padding: 8px;
  font-size: 16px;
  border: 1px solid #ccc;
  border-radius: 5px;
}

.chat-input button {
  padding: 8px 16px;
  background: #007bff;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}