@import url('https://fonts.googleapis.com/css2?family=Raleway:wght@100;200;300;400;500&display=swap');
*,*::before, *::after
{
    box-sizing: border-box;
    font-family: 'Raleway', sans-serif;
    font-weight: normal;
}
body
{
    padding: 0;
    margin: 0;
    background: linear-gradient(to right top, #00ffff, #ee8e62);
}

/* .github
{
    position: absolute;
    width: 3em;
    height: 3em;
    clip-path: polygon(0 0, 100% 100%, 100% 0);
    top: 0;
    right: 0;
    background: rgba(53, 182, 133, 0.678);
    overflow: hidden;
}
.github > img 
{
    transform: rotate(45deg);
} */
.calculator-grid
{
    display: grid;
    justify-content: center;
    align-content: center;
    min-height: 100vh;
    grid-template-columns: repeat(4,100px);
    grid-template-rows: minmax(120px, auto) repeat(5,100px);

}
.calculator-grid > button
{
    cursor: pointer;
    font-size: 2rem;
    /* border: 1px solid white; */
    outline: none;
    /* background-color: rgba(225, 225, 225, .75); */
    background: rgba( 9, 205, 238, 0.1 );
    /* box-shadow: 0 8px 32px 0 rgba( 31, 38, 135, 0.37 ); */
    backdrop-filter: blur( 4px );
    -webkit-backdrop-filter: blur( 4px );
    /* border-radius: 10px; */
    border: 1px solid rgba( 255, 255, 255, 0.18 );
    transition: .1s ease-in-out;
}
.calculator-grid > button:hover
{
    background-color: rgba(225, 225, 225, .90);
}
.calculator-grid > button:nth-child(17)
{
    border-radius: 0 0 0 10px;
}
.calculator-grid > button:nth-child(19)
{
    border-radius: 0 0 10px 0;
}
.span-two
{
    grid-column: span 2;
}
div
{
    user-select: none;
}
.output 
{
    grid-column: 1/-1;
    /* background: rgba(0, 0, 0, .75); */
    background: rgba( 9, 205, 238, 0.1 );
    backdrop-filter: blur( 4px );
    -webkit-backdrop-filter: blur( 4px );
    border-radius: 10px 10px 0 0;
    border: 1px solid rgba( 255, 255, 255, 0.18 );
    display: flex;
    align-items: flex-end;
    justify-content: space-evenly;
    flex-direction: column;
    padding: 20px;
    word-wrap: break-word;
    word-break: break-all;
} 
.previous-operand
{
    color: rgba(0, 0, 0, 0.75);
    font-size: 1.2rem;
}
.current-operand
{
    color: rgba(0, 0, 0, .95);
    font-size: 2.2rem;
}