body {
    font-family: Arial, sans-serif;
    background-color: #f0f2f5;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.chat-container {
    width: 400px;
    height: 600px;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.chat-header {
    background-color: #007bff;
    color: #fff;
    padding: 15px;
    text-align: center;
    font-size: 1.2em;
}

.chat-box {
    flex-grow: 1;
    padding: 15px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.message {
    max-width: 70%;
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 15px;
    line-height: 1.4;
}

.user-message {
    background-color: #007bff;
    color: #fff;
    align-self: flex-end;
    border-bottom-right-radius: 2px;
}

.bot-message {
    background-color: #e2e6ea;
    color: #333;
    align-self: flex-start;
    border-bottom-left-radius: 2px;
}

.chat-input {
    display: flex;
    padding: 15px;
    border-top: 1px solid #eee;
}

.chat-input input {
    flex-grow: 1;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 20px;
    outline: none;
    margin-right: 10px;
}

.chat-input button {
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 20px;
    padding: 10px 15px;
    cursor: pointer;
    outline: none;
}

.chat-input button:hover {
    background-color: #0056b3;
}