*,
*::before,
*::after {
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
/*creating hue for back of page(correct/incorrect)*/
:root {
    --hue-neutral: 200;
    --hue-wrong: 0;
    --hue-correct: 145;
}

body {
    --hue: var(--hue-neutral);
    padding: 0;
    margin: 0;
    display: flex;
    width: 100vw;
    height: 100vh;
    justify-content: center;
    align-items: center;
    background-color: hsl(var(--hue), 100%, 20%);
}
body.correct{
    --hue: var(--hue-correct);
}
body.wrong{
    --hue: var(--hue-wrong);
}

.btn-grid{
    display: grid;
    grid-template-columns: repeat(2,auto);
    gap: 10px;
    margin: 20px 0;
}
/*styling answer buttons*/
.btn{
    --hue: var(--hue-neutral);
    border: 3px solid hsl(var(--hue),100%, 30%) ;
    background-color: hsl(var(--hue), 100%, 50%);
    border-radius: 5px;
    padding: 5px 10px;
    color: white;
    outline: none;
}

.btn:hover{
    border-color:black ;
}
.btn.correct{
--hue: var(--hue-correct);
color: black;
}

.btn.wrong{
--hue: var(--hue-wrong);
}

/*styling next and start button*/

.start-btn, .next-btn{
    font-size: 1.5rem;
    font-weight: bold;
    padding: 10px 20px;
    margin: 10px;

}

.controls{
    display: flex;
    margin: 10px;
    padding: 10px;
    justify-content: center;
    align-items: center;
}

.hide{
    display: none;
}