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

:root{

    --white: hsl(0, 0%, 100%);
    --slate-300: hsl(212, 45%, 89%);
    --slate-500: hsl(216, 15%, 48%);
    --slate-900: hsl(218, 44%, 22%);
    
}

body{
    font-family: "Outfit", sans-serif;
    background-color: var(--slate-300);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

main{
    display: flex;
    flex-direction: column;
    width: 20em;
    height: 32em;
    border-radius: 25px ;
    background-color: var(--white);
    box-shadow:0px 20px 20px var(--slate-300);
}

.card__qr-code{
    margin: 15px;
    border-radius: 10px;
}

.card__header{
    color: var(--slate-900);
    font-size: 1.5em;
    margin: 15px;
    text-align: center;
}

.card__para{
    font-size:1rem ;
    color: var(--slate-500);
    text-align: center;
    margin: 0px 20px;
}

.attribution { 
    position: absolute;
    bottom: 10px;
    font-size: 11px; 
    text-align: center; 
}

.attribution a { 
    color: hsl(228, 45%, 44%); 
    text-decoration: none;
    font-weight: 600;
}

@media (max-width:600px) {
    main{
        width: 18em;
        margin: 2em;
    }
}