/* Import Font Modern dari Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&display=swap');

/* General Styling & Background Image */
body {
    /* CATATAN: Ganti URL di bawah dengan path gambar yang Anda inginkan */
    background-image: url('../img/background.jpg'); /* Gambar latar belakang */
    background-size: cover; /* Membuat gambar menutupi seluruh area */
    background-position: center; /* Posisi gambar di tengah */
    background-attachment: fixed; /* Membuat gambar latar tidak ikut scroll */
    font-family: 'Poppins', sans-serif; /* Menggunakan font Poppins yang modern */
    margin: 0;
    padding: 0;
    color: #333;
}

/* Header & Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 40px;
    background-color: rgba(255, 255, 255, 0.95); /* Latar belakang putih semi-transparan agar konten di belakangnya sedikit terlihat */
    backdrop-filter: blur(8px); /* Efek blur untuk tampilan modern */
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    position: sticky; /* Membuat navbar tetap di atas saat scroll */
    top: 0;
    z-index: 1000;
}

.navbar .logo {
    height: 45px;
    width: auto;
}

.navbar .nav-links {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 35px;
}

.navbar .nav-links a {
    color: #0056b3; /* Biru gelap untuk teks link */
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    transition: color 0.3s ease;
    padding-bottom: 5px;
    border-bottom: 2px solid transparent;
}

.navbar .nav-links a:hover {
    color: #f39c12; /* Aksen Oranye/Kuning saat hover */
    border-bottom: 2px solid #f39c12;
}

/* Dropdown Styling */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: #ffffff;
    min-width: 180px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.15);
    z-index: 1;
    list-style: none;
    padding: 8px 0;
    margin-top: 15px;
    border-radius: 8px;
}

.dropdown:hover .dropdown-content {
    display: block;
}

.dropdown-content a {
    color: #333;
    padding: 12px 20px;
    text-decoration: none;
    display: block;
    font-size: 0.95rem;
}

.dropdown-content a:hover {
    background-color: #f1f1f1;
    color: #0056b3;
}

/* Main Content Wrapper */
main {
    padding: 2rem;
    max-width: 1200px;
    margin: 2rem auto;
    background-color: rgba(255, 255, 255, 0.85); /* Latar belakang putih transparan untuk area konten utama */
    backdrop-filter: blur(5px);
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

/* Search Container */
.search-container {
    display: flex;
    justify-content: center;
    margin-bottom: 2.5rem;
}

#searchInput {
    width: 60%;
    padding: 1rem;
    font-size: 1rem;
    border: 1px solid #ddd;
    border-radius: 50px 0 0 50px; /* Sudut membulat seperti Gramedia */
    outline: none;
    transition: border-color 0.3s ease;
}

#searchInput:focus {
    border-color: #0073e6;
}

.search-container button {
    padding: 1rem 2rem;
    font-size: 1rem;
    background-color: #0073e6; /* Biru Khas Gramedia */
    color: white;
    border: none;
    border-radius: 0 50px 50px 0; /* Menyambung dengan input */
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.search-container button:hover {
    background-color: #0056b3;
}

/* Book Grid & Item Cards */
.popular-books-section h2, .section-container h2 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2.2rem;
    color: #002b4d; /* Biru sangat gelap */
}

.book-grid, .articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 2rem;
}

.book-item, .article-item {
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
    text-align: center;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.book-item:hover, .article-item:hover {
    transform: translateY(-10px); /* Efek mengangkat kartu saat di-hover */
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.book-item img, .article-item img {
    max-width: 150px;
    height: auto;
    border-radius: 8px;
    margin: 0 auto 1rem;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.book-item h3, .article-item h3 {
    margin: 0.5rem 0;
    font-size: 1.1rem;
}

.book-item p, .article-item p {
    color: #666;
    font-size: 0.9rem;
    flex-grow: 1;
}

/* Buttons Styling */
.detail-button, .read-more-button {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    margin-top: 1rem;
    background-color: #0073e6; /* Warna Aksi Primer (Biru) */
    color: white;
    text-decoration: none;
    border-radius: 25px;
    transition: background-color 0.3s;
    font-weight: 500;
}

.detail-button:hover, .read-more-button:hover {
    background-color: #0056b3;
}

.whatsapp-button, .rental-button {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    text-decoration: none;
    border-radius: 25px;
    font-weight: bold;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    color: white;
}

.whatsapp-button {
    background-color: #25D366; /* Warna WhatsApp */
}

.rental-button {
    background-color: #f39c12; /* Warna Aksen (Oranye/Kuning) */
}

/* Footer Styling */
footer {
    background-color: #002b4d; /* Biru sangat gelap, elegan */
    color: #f4f4f4;
    text-align: center;
    padding: 2.5rem 1rem;
    margin-top: 3rem;
}

.contact-info p {
    margin: 0.5rem 0;
    font-size: 0.95rem;
    color: #ddd;
}

.footer-license {
    font-size: 0.85rem;
    color: #aaa;
    border-top: 1px solid #004273;
    padding-top: 1.5rem;
    margin-top: 1.5rem;
}

/* Detail Page specific styling */
.book-detail-container {
    background-color: transparent; /* Hapus latar belakang agar menyatu dengan main */
    box-shadow: none;
    display: flex;
    gap: 2.5rem;
}

.book-detail-container img {
    max-width: 300px;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

/* About Page Styling */
.about-content {
    padding: 2rem;
    max-width: 1200px;
    margin: 2rem auto;
    background-color: rgba(255, 255, 255, 0.85); /* Latar belakang putih transparan untuk area konten utama */
    backdrop-filter: blur(5px);
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}
.vision-mission-box {
    padding: 2rem;
    max-width: 1200px;
    margin: 2rem auto;
    background-color: rgba(255, 255, 255, 0.85); /* Latar belakang putih transparan untuk area konten utama */
    backdrop-filter: blur(5px);
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        padding: 12px 20px;
    }
    .navbar .nav-links {
        margin-top: 10px;
        gap: 20px;
    }
    #searchInput {
        width: 70%;
    }
    .book-detail-container {
        flex-direction: column;
        align-items: center;
    }
}

/* --- STYLE TAMBAHAN UNTUK GALERI BUKU (DETAIL PAGE) --- */

.gallery-wrapper {
    display: flex;
    flex-direction: column; /* Susun vertikal: Gambar utama atas, thumbnail bawah */
    gap: 15px;
    width: 300px; /* Lebar area gambar */
    flex-shrink: 0; /* Agar tidak mengecil saat layar sempit */
}

/* Gambar Utama */
.main-preview {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
    object-fit: cover;
    transition: src 0.3s ease;
}

/* Kontainer Thumbnail */
.thumbnail-row {
    display: flex;
    gap: 10px;
    overflow-x: auto; /* Scroll samping jika thumbnail banyak */
    padding-bottom: 5px;
}

/* Gambar Thumbnail Kecil */
.thumbnail {
    width: 60px;
    height: 80px;
    object-fit: cover;
    border-radius: 6px;
    cursor: pointer;
    opacity: 0.6; /* Sedikit transparan jika tidak disorot */
    border: 2px solid transparent;
    transition: all 0.3s ease;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

/* Efek saat thumbnail disorot (Hover) */
.thumbnail:hover {
    opacity: 1;
    border-color: #007bff; /* Garis biru saat hover */
    transform: scale(1.05); /* Sedikit membesar */
}

/* --- STYLE UNTUK SECTION E-BOOK TERBARU --- */

.ebook-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); /* Sedikit lebih lebar dari buku biasa */
    gap: 2.5rem;
    padding: 10px;
}

.ebook-item {
    background-color: #ffffff;
    border-radius: 16px; /* Sudut lebih bulat */
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
    overflow: hidden; /* Agar gambar tidak keluar dari border-radius */
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(0,0,0,0.05);
}

.ebook-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

/* Wrapper Gambar */
.ebook-thumb-wrapper {
    position: relative;
    height: 220px;
    background-color: #f4f4f4;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ebook-thumb-wrapper img {
    height: 100%;
    width: 100%;
    object-fit: cover; /* Gambar mengisi penuh area */
    transition: transform 0.5s ease;
}

.ebook-item:hover .ebook-thumb-wrapper img {
    transform: scale(1.05); /* Efek zoom in halus saat hover */
}

/* Badge 'Baru' */
.badge-ebook {
    position: absolute;
    top: 15px;
    right: 15px;
    background-color: #ff4757;
    color: white;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    z-index: 2;
}

/* Konten Text Ebook */
.ebook-details {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    text-align: left; /* Text rata kiri agar beda dengan buku biasa */
}

.ebook-details h3 {
    margin: 0 0 10px 0;
    font-size: 1.25rem;
    color: #002b4d;
    font-weight: 700;
    line-height: 1.4;
}

.ebook-details .ebook-caption {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
    flex-grow: 1; /* Mendorong tombol ke bawah */
}

/* Tombol Detail (Override sedikit untuk E-book) */
.ebook-details .detail-button {
    text-align: center;
    width: fit-content;
    margin-top: auto; /* Memastikan tombol selalu di bawah */
    padding: 0.7rem 1.5rem;
    font-size: 0.9rem;
}