.chat-app{display:flex;flex-direction:column;height:100vh;width:100%;max-width:600px;margin:0 auto;border:1px solid #000;border-radius:8px;overflow:hidden}.chat-window{flex:1;padding:16px;overflow-y:auto;background-color:#232353}.chat-message{margin-bottom:10px;padding:8px 12px;background-color:#212228;color:#fff;border-radius:4px;word-wrap:break-word}.chat-controls{display:flex;gap:8px;padding:16px;background-color:#fff;border-top:1px solid #ccc}.chat-controls input{flex:1;padding:8px;border:1px solid #ccc;border-radius:4px}.chat-controls button{padding:8px 16px;background-color:#007bff;color:#fff;border:none;border-radius:4px;cursor:pointer}.chat-controls button:hover{background-color:#0056b3}