.chat-container{max-width:800px;margin:20px auto;padding:20px;height:80vh;display:flex;flex-direction:column;background:#fff;border-radius:10px;box-shadow:0 2px 10px #0000001a}.chat-messages{flex:1;overflow-y:auto;padding:20px 20px 200px;margin-bottom:20px}.message{margin-bottom:10px;padding:10px;background:#ffffff;border-radius:8px;box-shadow:0 2px 4px #0003;margin-right:10px}.sender{font-weight:700;margin-right:8px;color:#007bff}.text{color:#333;font-size:16px}.message-form{display:flex;gap:10px;padding:20px;border-top:1px solid #eee}.message-input{flex:1;padding:10px;border:1px solid #ddd;border-radius:4px;font-size:16px}.button-container{display:flex;gap:10px;align-items:center}.send-button,.logout-button{padding:10px 20px;background:#007bff;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:16px;flex:1;height:40px;display:flex;align-items:center;justify-content:center}.send-button:hover,.logout-button:hover{background:#0056b3}.auth-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;font-size:12px;padding:20px}.auth-container form{display:flex;flex-direction:column;gap:10px;width:100%;max-width:300px}.auth-container input{padding:10px;border:1px solid #ddd;border-radius:4px;font-size:14px}.auth-container button{padding:10px;background:#007bff;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:14px}.auth-container button:hover{background:#0056b3}