* {
    margin: 0;
    padding: 0;
    font-family: 'Poppins', sans-serif;
    box-sizing: border-box;
}

body{
    background: #f980ff;
}

.app{
    background: #fff;
    width: 90%;
    max-width: 600px;
    margin: 50px auto 0;
    border: 2px solid #bbff00;
    border-radius: 10px;
    padding: 30px;
}

.app h1{
    font-size: 25px;
    color: #f980ff;
    font-weight: 600;
    border-bottom: 1px solid #bbff00;
    padding-bottom: 20px;
}

.quiz{
    padding: 20px 0;
}

.quiz h2{
    font-size: 18px;
    color: #f980ff;
    font-weight: 600;
    margin-bottom: 10px;
}

.btn{
    background: #fff;
    color: #f980ff;
    font-weight: 500;
    width: 48%;
    border: 1px solid #f980ff;
    padding: 10px;
    margin: 5px 5px;
    text-align: center;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s;
}

.btn:hover:not([disabled]){
    background: #222;
    color: #fff;
}

.btn:disabled{
    cursor: no-drop;
}

#next-btn{
    background: #f980ff;
    color: #fff;
    font-weight: 500;
    width: 150px;
    border: 0;
    padding: 10px;
    margin: 20px auto 0;
    border-radius: 4px;
    cursor: pointer;
    display: none;
}

.correct{
    background: #bbff00;
    color: #333;
}

.incorrect{
    background: #ff5a5a;
    color: #333;
}