/* ==========================================================================
   CUSTOM CSS OJS 3.3 - MODERN JOCSTEC STYLE
   Fitur: Card-based Layout, Akses Penulis Cepat, Tombol PDF Kontras, 
   Sidebar Terstruktur, dan Variabel Warna Terpusat.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. VARIABEL TEMA & SKEMA WARNA
   Ubah kode warna hex di bagian ini untuk menyesuaikan identitas jurnal.
   -------------------------------------------------------------------------- */
:root {
    --primary-color: #ECECE7;       /* Dark Slate untuk Header & Footer */
    --secondary-color: #1e3a8a;     /* Deep Blue untuk Judul & Widget Header */
    --accent-cta: #f97316;          /* Vibrant Orange untuk Garis Aksos & Hover */
    --pdf-btn-color: #dc2626;       /* Merah Khusus Tombol PDF Galley */
    --pdf-btn-hover: #b91c1c;       /* Merah Gelap saat Hover */

    --bg-site: #f1f5f9;             /* Latar Belakang Situs (Soft Gray/Off-White) */
    --bg-card: #ffffff;             /* Latar Belakang Kartu (Putih Bersih) */
    --text-primary: #1e293b;        /* Warna Teks Utama */
    --text-muted: #64748b;          /* Warna Teks Sekunder/Keterangan */
    --border-light: #e2e8f0;        /* Garis Pembatas Tipis */

    --radius-card: 10px;            /* Sudut Membulat Kartu Konten */
    --radius-btn: 6px;              /* Sudut Membulat Tombol */
    --shadow-soft: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* --------------------------------------------------------------------------
   2. TAMPILAN UMUM SITUS (BASE STYLING)
   -------------------------------------------------------------------------- */
body {
    background-color: var(--bg-site);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
}

a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: all 0.2s ease-in-out;
}

a:hover {
    color: var(--accent-cta);
}

/* --------------------------------------------------------------------------
   3. HEADER & MENU NAVIGASI
   -------------------------------------------------------------------------- */
.pkp_structure_head {
    background-color: var(--primary-color) !important;
    border-bottom: 3px solid var(--accent-cta);
    box-shadow: var(--shadow-soft);
}

/* Penyesuaian Logo Header */
.pkp_site_name .is_img img {
    max-height: 150px;
    width: auto;
    margin: 8px 0;
}

/* Teks Menu Navigasi */
.pkp_navigation_primary a {
    color: #0D2644 !important;
    font-weight: 600;
    font-size: 0.92rem;
    padding: 10px 16px !important;
    transition: background-color 0.2s, color 0.2s;
}

.pkp_navigation_primary a:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--accent-cta) !important;
    border-radius: var(--radius-btn);
}

/* Dropdown Menu Navigasi */
.pkp_navigation_primary ul {
    background-color: var(--primary-color) !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    border-radius: var(--radius-btn) !important;
    box-shadow: var(--shadow-hover) !important;
}

/* --------------------------------------------------------------------------
   4. SIDEBAR & TOMBOL AKSES CEPAT (AUTHOR RESOURCES)
   -------------------------------------------------------------------------- */
.pkp_block {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-card);
    padding: 18px;
    margin-bottom: 22px;
    box-shadow: var(--shadow-soft);
}

/* Judul Widget Sidebar dengan Akses Garis Vertikal */
.pkp_block .title {
    background: transparent !important;
    color: var(--secondary-color) !important;
    font-size: 0.95rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 0 0 8px 12px !important;
    margin-bottom: 14px;
    border-left: 4px solid var(--accent-cta);
    border-bottom: 1px solid var(--border-light);
}

/* Styling Otomatis Tombol Akses di Sidebar (Custom Block) */
.block_custom .btn-sidebar {
    display: block;
    background-color: var(--secondary-color);
    color: #ffffff !important;
    text-align: center;
    padding: 10px 14px;
    margin-bottom: 10px;
    border-radius: var(--radius-btn);
    font-weight: 600;
    font-size: 0.88rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.08);
    transition: all 0.2s ease;
}

.block_custom .btn-sidebar:hover {
    background-color: var(--accent-cta);
    transform: translateY(-2px);
    box-shadow: var(--shadow-soft);
    text-decoration: none !important;
}

/* Penataan Gambar/Logo Indeksasi di Sidebar */
.block_custom img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 10px auto;
    transition: transform 0.2s ease;
}

.block_custom img:hover {
    transform: scale(1.03);
}

/* --------------------------------------------------------------------------
   5. CURRENT ISSUE & KARTU ARTIKEL (ARTICLE CARDS)
   -------------------------------------------------------------------------- */
.page_index_journal .journal_summary,
.obj_issue_toc,
.obj_article_details {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-card);
    padding: 24px;
    margin-bottom: 25px;
    box-shadow: var(--shadow-soft);
}

/* Layout Kartu Artikel pada Daftar Isi Edisi */
.obj_article_summary {
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-card);
    padding: 18px 20px;
    margin-bottom: 16px;
    transition: all 0.2s ease;
}

.obj_article_summary:hover {
    border-color: var(--secondary-color);
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.obj_article_summary .title a {
    color: var(--primary-color);
    font-weight: 700;
    font-size: 1.05rem;
    line-height: 1.4;
}

.obj_article_summary .authors {
    color: var(--text-muted);
    font-size: 0.88rem;
    margin-top: 6px;
}

/* --------------------------------------------------------------------------
   6. TOMBOL DOWNLOAD PDF (GALLEY)
   -------------------------------------------------------------------------- */
.obj_galley_link {
    background-color: var(--pdf-btn-color) !important;
    color: #ffffff !important;
    padding: 8px 18px !important;
    border-radius: var(--radius-btn) !important;
    font-weight: 700 !important;
    font-size: 0.85rem !important;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    display: inline-block;
    box-shadow: 0 2px 4px rgba(220, 38, 38, 0.2);
    transition: all 0.2s ease !important;
    border: none !important;
}

.obj_galley_link:hover {
    background-color: var(--pdf-btn-hover) !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(220, 38, 38, 0.3);
    text-decoration: none !important;
}

/* --------------------------------------------------------------------------
   7. DETAIL HALAMAN ARTIKEL (ARTICLE PAGE)
   -------------------------------------------------------------------------- */
.page_article .article_title {
    color: var(--primary-color);
    font-weight: 800;
    font-size: 1.75rem;
    line-height: 1.3;
}

/* Kotak Abstrak */
.item.abstract {
    background-color: #ffffff;
    border: 1px solid var(--border-light);
    border-left: 5px solid var(--secondary-color);
    border-radius: var(--radius-card);
    padding: 20px;
    margin: 20px 0;
}

.item.abstract .label {
    color: var(--secondary-color);
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 8px;
}

/* Kotak Sitasi (How to Cite) */
.item.citation {
    background-color: var(--bg-site);
    border: 1px dashed #cbd5e1;
    border-radius: var(--radius-btn);
    padding: 16px;
}

/* --------------------------------------------------------------------------
   8. FOOTER
   -------------------------------------------------------------------------- */
.pkp_structure_footer {
    background-color: var(--primary-color) !important;
    color: #ECECE7 !important;
    padding: 35px 0;
    margin-top: 50px;
    border-top: 4px solid var(--accent-cta);
}

.pkp_structure_footer a {
    color: #60a5fa !important;
}

.pkp_structure_footer a:hover {
    color: #ffffff !important;
    text-decoration: underline;
}