body {
    font-family: 'Bangers', cursive;
    background-color: #000;
    color: #ffd700;
    line-height: 1.6;
}

header.hero {
    background: #111;
}

.card-img-top {
    filter: sepia(1) contrast(1.2);
}

#topBtn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: none;
    z-index: 1000;
}