@import url('https://fonts.googleapis.com/css2?family=Roboto&display=swap');

* {
    padding: 0;
    margin: 0;
    font-family: 'Roboto', sans-serif;
}
.front{
    position: relative;
    top: 45px;
}
.front1{
    position: relative;
    top: -20px;
}
.start-page {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    background: #fff;
    width: 90%;
    max-width: 600px;
    margin: 100px auto 0;
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    height: 475px;
}

.start-page h1 {
    font-size: 25px;
    color: #001e4d;
    font-weight: 600;
    /* border-bottom: 1px solid #333; */
    padding-bottom: 0px;
}

.start-page p {
    color: #001e4d;
    font-size: 16px;
    margin-bottom: 20px;
}

.start-btn {
    background: #001e4d;
    color: #fff;
    font-weight: 500;
    width: 150px;
    border: 0;
    padding: 10px;
    margin: 20px auto 0;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s;
}

.start-btn:hover {
    background: #fff;
    color: #001e4d;
}

body {
    /* background: #001e4d; */
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 16vh 0;
}

.app {
    background: #fff;
    width: 90%;
    max-width: 600px;
    margin: 100px auto 0;
    border-radius: 10px;
    padding: 30px;
}

.app h1 {
    font-weight: 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: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;

}

.correct {
    background: #9aeabc;
}

.incorrect {
    background: #ff9393;
}

img {
    display: block;
    width: 300px;
}

#question {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}
body::before {
    content: "";
    position: absolute;
    top: -66px;
    left: 0;
    width: 100%;
    height: 163%;
    background-image: url(https://images.rawpixel.com/image_800/cHJpdmF0ZS9sci9pbWFnZXMvd2Vic2l0ZS8yMDIyLTA2L2stMjAtaGFuZC1xdWVzdGlvbjFfYmlyZF8yLmpwZw.jpg);
    background-repeat: no-repeat;
    background-size: 125% 100%;
    opacity: .1;
    z-index: -1;
}
