body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
}

.chat-container {
    max-width: 600px;
    margin: 50px auto;
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.header {
    display: flex;
    align-items: center;
    gap: 15px;
}

.avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
}

.chat-box {
    border: 1px solid #ddd;
    padding: 10px;
    height: 300px;
    overflow-y: scroll;
    margin-top: 20px;
}

.message {
    margin: 10px 0;
}

.bot {
    color: blue;
}

.user {
    color: green;
    text-align: right;
}

input[type="text"] {
    width: 80%;
    padding: 10px;
    margin-top: 10px;
}

button {
    padding: 10px 15px;
}