.chat-container{max-width:600px;margin:0 auto;padding:20px;border:1px solid #ccc;border-radius:10px}.messages{height:500px;overflow-y:auto;margin-bottom:10px;padding:10px;border:1px solid #ddd;border-radius:5px}.user{text-align:right;color:#00f}.bot{text-align:left;color:green}input{width:100%;padding:10px;border:1px solid #ccc;border-radius:5px}