body{
background:#071018;
color:white;
font-family:Arial, Helvetica, sans-serif;
margin:0;
padding:40px;
}

.container{
max-width:850px;
margin:auto;
}

h1{
margin-bottom:0;
}

.subtitle{
color:#aaa;
margin-top:4px;
margin-bottom:30px;
}

#chat{
background:#0d1a25;
padding:25px;
border-radius:10px;
min-height:300px;
margin-bottom:20px;
}

.message{
margin-bottom:15px;
line-height:1.5em;
}

.ai{
color:#f7b733;
}

.user{
color:#61dafb;
}

textarea{
width:100%;
height:90px;
background:#111;
color:white;
border:1px solid #333;
border-radius:6px;
padding:10px;
resize:none;
}

button{
background:#f7b733;
border:none;
padding:12px 24px;
margin-top:10px;
cursor:pointer;
border-radius:6px;
font-weight:bold;
}