/* Apply a dark background color to the entire calculator */
body {
    background-color: #333;
    color: #fff;
    font-family: Arial, sans-serif;
}

/* Style the calculator container */
h1 {
    font-size: 24px;
}

/* Style the input field */
input[type="number"] {
    width: 300px;
    padding: 10px;
    background-color: #444;
    color: #fff;
    border: 1px solid #666;
    border-radius: 5px;
    margin-bottom: 10px;
}

/* Style the Calculate button */
button {
    padding: 10px 20px;
    background-color: #007acc;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

/* Style the result div */
#result {
    margin-top: 10px;
    padding: 10px;
    background-color: #555;
    color: #fff;
    border-radius: 5px;
}

/* Change button style on hover */
button:hover {
    background-color: #005a9e;
}