body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.chat-container {
    width: 400px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.chat-box {
    padding: 20px;
    height: 300px;
    overflow-y: auto;
    border-bottom: 1px solid #ccc;
}

.message {
    margin-bottom: 15px;
}

.bot {
    color: blue;
}

input, button {
    width: 100%;
    padding: 15px;
    border: 0;
}

input {
    border-top: 1px solid #ccc;
    box-sizing: border-box;
}

button {
    background-color: #007bff;
    color: #fff;
    cursor: pointer;
}