body {
    font-family: Arial, sans-serif;
    background: #f7f8fa;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.chat-container {
    width: 420px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
    padding: 20px;
}

.chat-box {
    height: 400px;
    overflow-y: auto;
    border: 1px solid #ddd;
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 5px;
    background: #f9f9f9;
}

.user-msg,
.bot-msg {
    margin: 8px 0;
}

.user-msg {
    text-align: right;
    color: #333;
}

.bot-msg {
    text-align: left;
    color: #0056b3;
}

.error {
    color: red;
}

.input-area {
    display: flex;
}

input {
    flex: 1;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

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

button:hover {
    background: #0056b3;
}