body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    margin: 0;
    padding: 0;
}

.chat-container {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.chat-header {
    background-color: #4CAF50;
    color: white;
    padding: 10px;
    text-align: center;
    border-radius: 10px 10px 0 0;
}

.chat-box {
    display: flex;
    flex-direction: column;
    padding: 15px;
    height: calc(100vh - 10.5em);
    overflow-y: auto;
    border-bottom: 1px solid #ddd;
}

.message {
    margin-bottom: 10px;
    padding: 8px;
    border-radius: 8px;
    max-width: 70%;
    display: inline-block;
}

.message.user {
    background-color: #e1f5fe;
    align-self: flex-end;
    text-align: right;
}

.message.assistant {
    background-color: #f1f1f1;
    align-self: flex-start;
    text-align: left;
}

.chat-input {
    display: flex;
    padding: 10px;
    border-radius: 0 0 10px 10px;
    background-color: #fafafa;
}

.chat-input input {
    flex: 1;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 5px;
    margin-right: 10px;
}

.chat-input button {
    padding: 8px 15px;
    border: none;
    background-color: #4CAF50;
    color: white;
    border-radius: 5px;
    cursor: pointer;
}

.chat-input button:hover {
    background-color: #45a049;
}