.calculator-container{width:300px;margin:0 auto;padding:20px;background-color:#f4f4f4;border-radius:10px;box-shadow:0 0 10px rgb(0 0 0 / .1)}h2{text-align:center;color:#333}.calculator-form{display:flex;flex-direction:column}.calculator-form label{margin:10px 0 5px;color:#555}.calculator-form input{padding:10px;border:1px solid #ccc;border-radius:5px}button{padding:10px;background-color:#28a745;color:#fff;border:none;border-radius:5px;cursor:pointer;margin-top:20px}button:hover{background-color:#218838}.result{margin-top:20px;text-align:center;color:#333}.result span{font-weight:700;color:#007bff}