body {

    margin: 0;

    font-family: 'Arial', sans-serif;

    display: flex;

    justify-content: center;

    align-items: center;

    height: 100vh;

    background-color: #f4f5f7;

}



#app {

    width: 90%;

    max-width: 600px;

    border: 1px solid #ddd;

    border-radius: 8px;

    background-color: #fff;

    display: flex;

    flex-direction: column;

    height: 80vh;

}



.chat-log {

    flex: 1;

    padding: 16px;

    overflow-y: auto;

    border-bottom: 1px solid #ddd;

}



.input-area {

    padding: 12px;

    border: 1px solid #ddd;

    margin: 10px;

    border-radius: 4px;

    min-height: 50px;

}



.controls {

    display: flex;

    justify-content: space-between;

    padding: 10px;

}



.btn {

    padding: 10px 20px;

    border: none;

    border-radius: 4px;

    cursor: pointer;

    background-color: #007a5a;

    color: white;

}



.status-bar {

    padding: 10px;

    background-color: #f8d7da;

    color: #721c24;

    display: none;

    justify-content: space-between;

    align-items: center;

}