:root{
    --hijau-gelap:   #073824;
    --hijau-tua:     #0B5D3B;
    --hijau-terang:  #147a4f;
    --emas:          #C89B3C;
    --emas-terang:   #E8CC85;
    --putih:         #FFFFFF;
    --kabut:         rgba(255,255,255,.86);
}

*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family:'Poppins',sans-serif;
}

body{
    background:#F4F6F8;
}

.hero-buku{

    position:relative;

    overflow:hidden;

    padding:120px 0 100px;

    color:var(--putih);

}

.hero-overlay{

    position:absolute;

    inset:0;

    background:linear-gradient(
        rgba(7,56,36,.65),
        rgba(11,93,59,.55),
        rgba(7,56,36,.75)
    );

    z-index:2;

}

.hero-content{

    position:relative;

    z-index:3;

}

.hero-buku h1{

    font-size:48px;

    font-weight:700;

    margin-bottom:18px;

    text-shadow:0 5px 15px rgba(0,0,0,.35);

}

.hero-buku p{

    color:rgba(255,255,255,.88);

    max-width:620px;

    margin:0 auto 35px;

}

.search-box{

    margin-top:35px;

    display:flex;

    justify-content:center;

    gap:10px;

    flex-wrap:wrap;

}

.search-box input{

    max-width:500px;

    height:55px;

    border:none;

    border-radius:14px;

    background:rgba(255,255,255,.95);

    box-shadow:0 8px 20px rgba(0,0,0,.12);

}

.search-box input:focus{

    box-shadow:0 0 0 .2rem rgba(200,155,60,.30);

}

.btn-search{

    background:var(--emas);

    color:var(--hijau-gelap);

    font-weight:600;

    border:none;

    border-radius:12px;

    transition:.3s;

}

.btn-search:hover{

    background:var(--emas-terang);

    color:var(--hijau-gelap);

}

/* CARD */

.book-card{

    background:var(--putih);

    border-top:4px solid var(--emas);

    border-radius:18px;

    overflow:hidden;

    box-shadow:0 12px 30px rgba(0,0,0,.08);

    transition:.35s;

}

.book-card:hover{

    transform:translateY(-8px);

    box-shadow:0 18px 36px rgba(0,0,0,.18);

}

.book-card img{

    width:100%;

    height:280px;

    object-fit:cover;

}

.book-content{

    padding:20px;

}

.book-content h5{

    color:var(--hijau-tua);

    font-weight:600;

}

.book-content p{

    color:#777;

    margin:15px 0;

}

.btn-detail{

    display:block;

    width:100%;

    text-align:center;

    background:var(--hijau-tua);

    color:var(--putih);


    text-decoration:none;

    padding:12px;

    border-radius:10px;

    transition:.3s;

}

.btn-detail:hover{

    background:var(--emas);

    color:var(--hijau-gelap);

}

.hero-slideshow{

    position:absolute;

    inset:0;

    z-index:1;

}

.hero-slideshow .slide{

    position:absolute;

    inset:0;

    opacity:0;

    transition:opacity 1.8s ease-in-out;

    background-size:cover;

    background-position:center;

    background-repeat:no-repeat;

}

.hero-slideshow .slide.active{

    opacity:1;

}

.slide-1{

    background-image:url("../background/bg1.jpg");

}

.slide-2{

    background-image:url("../background/bg2.jpg");

}

.slide-3{

    background-image:url("../background/bg3.jpg");

}

.slide-4{

    background-image:url("../background/bg4.jpg");

}

.slide-5{

    background-image:url("../background/bg5.jpg");

}

.garis-emas{

    width:90px;

    height:3px;

    margin:18px auto 25px;

    background:linear-gradient(
        90deg,
        transparent,
        var(--emas),
        transparent
    );

    border-radius:50px;

}