html, body{
    margin: 0;
    padding: 0;
    height: 100%;
    overflow-x: hidden;
    scroll-behavior: smooth;
}

body{
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    background: gray;
}

h2{
    -webkit-text-stroke-color: black;
    -webkit-text-stroke-width: 3px;
    font-size: 3.5rem;
    margin: 2 rem 0;
}

.credit{
    position: absolute;
    top: 0;
    right: 0;
    font-size: 1rem;
    margin: 1rem 2rem;
    max-width: 10rem;
    text-align: center;
    text-decoration: none;
    color: #87A8E0;
    transition: .5s ease;
}

.credit span{
    transition: .3s ease;
}

.credit:hover{
    transform: scale(1.05);
    -webkit-filter: drop-shadow(0px 0px 10rem rgba(248, 234, 36, 0.8));
}

.credit:hover span{
    color: #f8ea24;
}

#home-bg{
    position: fixed;
    top: -1rem;
    right: -1rem;
    margin: 0;
    min-width: 100%;
    min-height: 100%;
    z-index: -1;
    filter: blur(10px);
}

section{
    height: 100vh;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: #87A8E0;
}

.book-grid{
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem 7rem;
    max-width: 65%;
}

#top-grid{
    margin-bottom: 7rem;
}


.book-btn{
    text-decoration: none;
    max-width: 11rem;
    font-size: 1.125rem;
    text-align: center;
    font-weight: 900;
    color: #87A8E0;
    margin: 0;
    transition: all .5s ease;
    -webkit-transition: all .5s;
}

.book-btn:hover{
    transform: scale(1.1);
    -webkit-filter: drop-shadow(0px 0px 2rem rgba(248, 234, 36, 0.8));
}

.book-btn img{
    width: 100%;
    margin-bottom: .5rem;
}


#home-bottom{
    background: rgba(171, 0, 0, 0.14);
}

.scroll-btn{
    width: 100vw;
    cursor: pointer;
    height: 4rem;
    padding: 0;
    margin: 0;
    border: none;
    background: transparent;
    color: white;
    font-size: 2rem;
}

#scroll-down-btn{
    position: absolute;
    bottom: 0;
    background-image: linear-gradient(to bottom, rgba(255, 0, 0, 0), rgba(255, 0, 0, 1));
}

#scroll-up-btn{
    position: absolute;
    top: 0;
    background-image: linear-gradient(to top, rgba(255, 0, 0, 0), rgba(255, 0, 0, 1));
}