body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    flex-direction: column;
    text-align: center;
    background-color: rgb(228, 240, 251);
}
.correct-answer {
    background-color: #4CAF50;
    color: white;
}
.wrong-answer {
    background-color: #f44336;
    color: white;
}
.score-board {
    font-size: 2rem;
    font-weight: bold;
    margin-top: 2rem;
}
.App {
width: 70%;
height: 85%; 
display: flex;
justify-content: center;
align-items: center;
padding: 95px 95px 95px 95px;
max-width: 75rem;
margin: 0 auto;

}
.cen {
display: flex;
flex-direction: column;  
justify-content: center;
align-items: center;
text-align: center;

}
.cen h1 {
font-size: 5.4rem;
color: #56a5eb;
margin-bottom: 3.5rem;
}

.cen h1 span {
font-size: 2.4rem;
font-weight: 500;
}
/* Buttons */
.cen a {
font-size: 1.8rem;
padding: 1rem;
width: 15rem;
text-align: center;
border: 0.1rem solid #56a5eb;
margin-bottom: 1rem;
text-decoration: none;
color: #56a5eb;
background-color: #ecf5ff;
border-radius: 2rem 2rem 2rem 2rem;

}
.cen a:hover {
cursor: pointer;
box-shadow: 0 0.4rem 1.4rem 0 #4586be;
transform: translate(-0.1rem);
transition: 150ms;

}

.quiz {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    width: 100%;
}
#question {
    font-size: 2.5rem;
    margin-bottom: 4,2rem;
}
#answer-buttons {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
}
.btn {
    display: block;
    width: 50%;
    padding: 1rem;
    margin: 0.5rem 0;
    border: 1px solid #56a5eb;
    background-color: white;
    cursor: pointer;
    font-size: 1.6rem;
    text-align: center;
    border-radius: 1.5rem;
}
.btn:hover {
    cursor: pointer;
    box-shadow: 0 0.4rem 1.4rem 0 #4586be;
    transform: translate(-0.1rem);
    transition: 150ms;
}
.button{
display: flex;
justify-content: center;
gap: 40px;
margin-top: 20px;
}

#next-btn {
background: rgb(7, 7, 59); 
color: #fff;
font-weight: 700;
width: 10rem;
border: 0;
padding: 1rem;
margin: 1rem  auto 0;
border-radius: 1.5rem ;
justify-content: center;
align-items: center;
display: none;
font-size: 1.3rem;

}
#next-btn:hover {
cursor: pointer;
box-shadow: 0 0.4rem 1.4rem 0 rgb(60, 60, 160);
transform: translate(1.0rem);
transition: 150ms;
}
#prev-btn {
background:rgb(7, 7, 59);
color: #fff;
font-weight: 700;
width: 10rem;
border: 0;
padding: 1rem;
margin: 1rem auto 0;
border-radius: 1.5rem;
display: none;
font-size: 1.3rem;
justify-content: center;
align-items: center;
}

#prev-btn:hover {
cursor: pointer;
box-shadow: 0 0.4rem 1.4rem 0 rgb(60, 60, 160);
transform: translate(1.0rem);
transition: 150ms;
}
#submit-btn {
background:rgb(7, 7, 59);
color: #fff;
font-weight: 700;
width: 10rem;
border: 0;
padding: 1rem;
margin: 1rem auto 0;
border-radius: 1.5rem;
display: none;
font-size: 1.3rem;
justify-content: center;
align-items: center; 
}
#submit-btn:hover{
cursor: pointer;
box-shadow: 0 0.4rem 1.4rem 0 rgb(60, 60, 160);
transform: translate(1.0rem);
transition: 150ms; 
}

@media (max-width: 768px) {
    .App {
        width: 95%;
        height: auto;
        padding: 40px 20px;
        flex-direction: column;
    }

    .cen h1 {
        font-size: 3rem;
    }

    .cen a {
        width: 80%;
        font-size: 1.5rem;
    }

    .quiz h2 {
        font-size: 1.8rem;
    }

    .btn {
        width: 90%;
        font-size: 1.4rem;
    }

    #next-btn,
    #prev-btn,
    #submit-btn {
        width: 8rem;
        font-size: 1.1rem;
    }
}