body{
    margin:0;
    font-family:Arial,sans-serif;
    background:#f5f7f9;
}

.container{
    max-width:800px;
    margin:50px auto;
    background:#fff;
    padding:30px;
    border-radius:16px;
    box-shadow:0 10px 30px rgba(0,0,0,.1);
}

h1{
    text-align:center;
    color:#016559;
}

#conversation{
    min-height:300px;
    margin-bottom:20px;
}

.message{
    margin:10px 0;
    padding:12px;
    border-radius:10px;
}

.user{
    background:#e8f5f3;
}

.ai{
    background:#f0f0f0;
}

#micButton{
    width:100%;
    border:none;
    padding:18px;
    background:#016559;
    color:white;
    font-size:18px;
    border-radius:12px;
    cursor:pointer;
}