body{font-family:Arial,sans-serif;text-align:center;margin:0;padding:0;background-color:#f9f9f9;color:#333}h1{margin-top:20px;font-size:24px;color:#007bff}input,button{padding:10px;font-size:16px;margin:5px;width:90%;max-width:400px;box-sizing:border-box}button{background-color:#007bff;color:#fff;border:none;border-radius:5px;cursor:pointer}button:hover{background-color:#0056b3}footer{margin-top:30px;font-size:14px;color:gray}footer a{color:#007bff;text-decoration:none}footer a:hover{text-decoration:underline}