body {
    box-sizing: border-box;
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    position: relative;
    flex-direction: column;
}

.calculator {
    width: 90%;
    max-width: 600px;
    background-color: skyblue;
    margin: 20px;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
}

#print {
    margin: 10px;
    display: block;
    color: black;
    font-size: 30px;
    padding: 10px;
}

input,
select {
    display: block;
    width: 100%;
    margin: 10px 0;
    padding: 10px;
    border: 1px solid black;
    border-radius: 5px;
    background-color: white;
    font-size: 30px;
    color: black;
}

button {
    display: block;
    width: 100%;
    margin-top: 20px;
    padding: 10px;
    border: 1px solid white;
    border-radius: 5px;
    background-color: blue;
    font-size: 30px;
    color: #f0f0f0;
    cursor: pointer;
}

button:hover {
    background-color: #0056b3;
}

#results {
    margin-top: 15px;
    font-size: 30px;
    color: black;
}

.info a {
    margin-top: 10px;
    text-align: center;
    display: inline-block;
    font-size: 18px;
    color: white;
    text-decoration: none;
}

.info a:hover {
    text-decoration: underline;
}

.background-image {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('assets/background.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: -1;
}

@media (max-width: 768px) {
    .calculator {
        width: 100%;
    }
}

@media (max-width: 480px) {
    #print,
    input,
    select,
    button,
    #results,
    .info a {
        font-size: 20px;
        padding: 5px;
    }
}