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


body
{
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: white;
    font-family: 'Montserrat';
}


.calculator
{
    border: 1px black solid;
    display: grid;
    grid-template-columns: repeat(4, 80px);
    grid-template-rows: minmax(150px, auto) repeat(5, 80px);
}


.screen
{
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    justify-content: space-around;
    background: rgb(255, 253, 253);
    word-wrap: break-word;
    word-break: break-all;
    grid-area: 1/1/2/span 4;
    padding: 10px;
    color: rgb(44, 62, 76);
    font-size: 2rem;
    font-weight: bold;
    
}


.input
{
    font-size: 3rem;
    opacity: 0.5;
}


.output
{
    font-size: 1.5rem;
    opacity: 0.5;
}


button
{
    outline: none;
    border: solid rgb(233, 233, 233);
    border-width: thin;
    user-select: none;
    cursor: pointer;
    font-size: 3rem;
}