#chatbox{background:white;border-radius:10px;padding:1rem;max-width:600px;margin:auto;box-shadow:0 0 10px rgba(0,0,0,0.1)}.msg{margin:0.5rem 0}.user{text-align:right;color:blue}.bot{text-align:left;color:green}input,button{padding:0.5rem;font-size:1rem;margin-top:1rem;width:100%;box-sizing:border-box}button{margin-top:0.5rem}