@import url('https://fonts.googleapis.com/css2?family=Poppins&display=swap');

*,*:after,*:before{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body{
    font-family: 'Poppins', sans-serif;
    background-color: ;
    min-height: 1vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.app{
    background: #ffffff7b;
    width: 90%;
    max-width: 600px;
    border-radius: 10px;
    padding: 20px;
    position: relative;
}
.app >h1{
    font-size: 25px;
    color: #222;
    font-weight: bold;
    border-bottom: 1px solid #cdcdcd;
    color: #036444;
    padding-bottom: .7rem;
}
.quiz{
    padding: 20px 0;
}
.quiz >h2{
    font-size: 18px;
    color: #00291c;
    font-weight: 100;
}
#answer-buttons{
    margin-top: 1rem;
    display: flex;
    flex-direction: column;
}
.btn{
    background-color: #fff;
    color: #00291c;
    font-weight: 100;
    width: 100%;
    border: 1px solid #00291c;
    padding: 10px;
    margin: 10px 0;
    text-align: left;
    border-radius: 4px;
    cursor: pointer;
    font-family: 'Poppins', sans-serif;
    font-size: 17px;
    transition: all .25s linear;
}
.btn:hover:not([disabled]){
    background-color: #00291c;
    color: #fff;
}
.btn:disabled{
    cursor:not-allowed;
}
#next-btn{
    font-family: 'Poppins', sans-serif;
    background-color: #00291c;
    color: #fff;
    font-weight: 100;
    width: 140px;
    padding: 12px;
    margin: 10px 0;
    border: 0;
    border-radius: 4px;
    cursor: pointer;
    font-size: 17px;
    transition: all .2s linear;
    visibility: hidden;
}
#next-btn:hover{
    transform: translateY(-2px);
    opacity: .9;
}
.correct{
    background-color: #036444;
    color: #fff;
    border-color: #036444;
}
.incorrect{
    background-color: #e36060;
    color: #fff;
    border-color: #e36060;
}