*{
    margin: 0;
    padding:0;
    box-sizing: border-box;
}

htmll{
    font-size: 62.5%;
}
body{
    font-family: Helvetica,Arial, sans-serif;
}
header{
    background-color: #222222;
    color: #bababa;
    padding: 1rem;

    img{
        float: left;
        height: 3rem;
        width: auto;
        margin-right: 2rem;
    }

    h1{
        font-family: Arial, Helvetica, sans-serif;
        font-size: 2.5rem;
    }

    nav{
        ul{
            list-style-type: none;
            margin-left: 0;

            li{
                display: inline-block;
                background-color: #d3d00c;
                color:#448344;
                border: 1px solid black;
                margin-left: 0;
                font-size: 1rem;
                padding: 2px 4px 2px 4px;
            }
        }

        a{
            text-decoration: none;
            color: black;
        }
    }
}

main{
    position: relative;
    padding: 1rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.4rem;

    section{
        border: 1px solid black;
        padding: 0.4rem;
        height: 18rem;
        h2{
            font-size: 1.8rem;
            margin-bottom: 0.5rem;
        }

        h2{
            font-size: 1.4rem;
            margin-bottom: 0.3rem;
        }
        
        p{
            margin-bottom: 0.4rem;
        }

        ul{
            margin-left: 1rem;
        }

        legend {
            margin: 0.5rem;
            padding: 0 0.2rem
        }
    }

    #calc{
        border: 1px solid green;
        padding-left: 5px;
        padding-top: 5px;
        padding-bottom: 5px;
        
        input[type='number']{
            margin: 0.3rem;
        }
        button{
            margin: 0.2rem 0.4rem;
            padding: 0.2rem 0.4rem;
        }
    }
}

footer{
    background-color: #222222;
    color: #bababa;
    padding: 1rem;
}