*{
   margin: 0;
   padding: 0;
   font-family: "poppins", sans-serif;
   box-sizing: border-box;

}
body {
    background: #001e4d;
}
.app {
    background: #fff;
    width: 90%;
    max-width: 600px;
    margin: 100px auto 0;
    border-radius: 10px;
    padding: 30px;
}
.app h1 {
    font-size: 25px;
    color: #001e4d;
    font-weight: 600;
    border-bottom: 1px solid #333;
    padding-bottom: 30px;
}
.quiz {
    padding: 20px 0;
}
.quiz h2 {
    font-size: 18px;
    color: #001e4d;
    font-weight: 600;
}
.btn {
    background: #fff;
    color: #222;
    font-weight: 500;
    width: 100%;
    border: 1px solid #222;
    padding: 10px;
    margin: 10px 0;
    text-align: left;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s;
}
/* .btn:hover {
    background: #222;
    color: #fff;  
} */

.btn:hover:not([disabled]) {
    background: #222;
    color: #fff;   
}
.btn:disabled {
   cursor: no-drop;  
}


#next-btn {
    background: #001e4d;
    color: #fff;
    font-weight: 500;
    width: 150px;
    border: 0;
    padding: 10px;
    margin: 20px auto 0;
    border-radius: 4px;
    cursor: pointer;
    display: none;
/* display is set to none means to hide the next btn until the first qtn is answered */
}
.correct{
    background: #9aeabc;
}
.incorrect{
    background: #ff9393;
}
/* Background color for correct and incorrect answers */