body{font-family:Verdana,Geneva,Tahoma,sans-serif;background-color:#f5f5f5;display:flex;justify-content:center;align-items:center;height:100vh;margin:0}.container{background-color:#fff;padding:20px;border-radius:8px;box-shadow:0 2px 4px #0000001a;width:400px;text-align:center}h1{color:#2d0594}.header{margin-bottom:20px}form{display:flex;flex-direction:column}label{margin-bottom:10px;font-weight:700;color:#053476}input[type=text]{padding:10px;border:1px solid #ccc;border-radius:4px;margin-bottom:20px}button{padding:10px;background-color:#0c7b97;color:#fff;border:none;border-radius:4px;cursor:pointer}button:hover{background-color:#08b6d9}.result{font-size:18px;font-weight:700;color:#d50}