body{font-family:Arial,sans-serif;margin:0;padding:0;background-color:#f8f8f8}.container{max-width:1200px;margin:0 auto;padding:20px}#calculatorForm{background-color:#fff;border-radius:10px;padding:20px;box-shadow:0 0 10px rgb(0 0 0 / .1)}label{display:block;margin-bottom:10px}input[type=number]{width:100%;padding:10px;border-radius:5px;border:1px solid #ccc;margin-bottom:20px}input[type=button]{padding:10px 20px;background-color:#007bff;color:#fff;border:none;border-radius:5px;cursor:pointer}input[type=button]:hover{background-color:#0056b3}#result{margin-top:20px;background-color:#fff;border-radius:10px;padding:20px;box-shadow:0 0 10px rgb(0 0 0 / .1);display:none}h2{margin-bottom:20px}h3{margin-bottom:10px}p{margin-bottom:5px}span{font-weight:700}