body {
    font-family: Arial, sans-serif;
    background-color: #fff;
    color: #333;
    text-align: center;
}

.calculator-container {
    background-color: #fff;
    padding: 20px;
    max-width: 800px;
    margin: 0 auto;
}

h1 {
    color: #0000FF;
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 30px;
}

input[type="number"] {
    padding: 15px;
    width: 100%;
    margin-bottom: 20px;
    border: 2px solid #0000FF;
    border-radius: 50px;
    font-size: 16px;
    outline: none;
}

label {
    display: block;
    text-align: left;
    margin-bottom: 5px;
    font-size: 16px;
    font-weight: bold;
}

button {
    background-color: #FF4D6A;
    color: white;
    padding: 15px 40px;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    font-size: 18px;
    font-weight: bold;
    margin-top: 20px;
}

button:hover {
    background-color: #FF365A;
}

#result {
    margin-top: 40px;
    text-align: left;
    font-size: 24px;
}

#result h2 {
    color: #0000FF;
    font-size: 32px;
}

#result p {
    margin: 15px 0;
}

#result span {
    color: #FF4D6A;
    font-weight: bold;
}
</style>

<script>