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#ddd}.chat-input-container{display:flex;border-top:1px solid #ddd;background-color:#fff;padding:10px}.chat-input{flex:1;padding:5px;border:1px solid #ddd;border-radius:4px}.chat-send-button{background-color:#007bff;color:#fff;border:none;padding:5px 10px;margin-left:10px;border-radius:4px;cursor:pointer}.chat-send-button:hover{background-color:#0056b3}.join-room-container{max-width:400px;margin:50px auto;padding:20px;background-color:#f8f9fa;border-radius:8px;box-shadow:0 4px 8px #0000001a;text-align:center}.join-room-container h2{margin-bottom:20px;color:#343a40;font-size:24px}.join-room-container form{display:flex;flex-direction:column}.join-room-container label{font-weight:700;margin-bottom:5px;text-align:left;color:#495057}.join-room-container input{padding:10px;margin-bottom:15px;border:1px solid #ced4da;border-radius:4px;font-size:16px;width:100%;box-sizing:border-box}.join-room-container input:focus{border-color:#007bff;outline:none;box-shadow:0 0 3px #007bff40}.join-room-container button{padding:12px;background-color:#007bff;color:#fff;font-size:16px;font-weight:700;border:none;border-radius:4px;cursor:pointer;transition:background-color .3s ease}.join-room-container button:hover{background-color:#0056b3}.join-room-container button:active{background-color:#004085}.join-room-container .error-message{color:#dc3545;margin-bottom:15px;font-weight:700}*{margin:0;padding:0;box-sizing:border-box}