body {
    background-color: #f4f7f6; /* Warna abu-abu sangat muda agar mata tidak lelah */
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color: #333;
}

.navbar-default {
    background-color: #ffffff;
    border: none;
    border-bottom: 3px solid #0056b3; /* Aksen warna biru jurnal */
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.navbar-default .navbar-nav > li > a {
    color: #444;
    font-weight: 600;
    transition: all 0.3s ease;
}

.navbar-default .navbar-nav > li > a:hover {
    color: #0056b3;
    background-color: #f8f9fa;
}

.jt-jumbotron {
    background: linear-gradient(135deg, #0056b3 0%, #003d80 100%);
    color: white;
    padding: 60px 0;
    margin-bottom: 40px;
    border-radius: 0 0 20px 20px;
}

.article-summary {
    background: #fff;
    padding: 25px;
    margin-bottom: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.02);
    border: 1px solid #eee;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.article-summary:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0,0,0,0.1);
}

.article-summary .title a {
    color: #2c3e50;
    font-weight: 700;
    text-decoration: none;
    font-size: 1.25rem;
}

.article-summary .title a:hover {
    color: #0056b3;
}

.btn-primary, .obj_galley_link {
    background-color: #0056b3 !important;
    border: none !important;
    border-radius: 6px !important;
    padding: 8px 20px !important;
    font-weight: 500 !important;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: background 0.3s ease;
}

.btn-primary:hover, .obj_galley_link:hover {
    background-color: #003d80 !important;
    box-shadow: 0 4px 12px rgba(0,86,179,0.3);
}

.pkp_structure_sidebar {
    background: transparent;
}

.block {
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 25px;
    border: 1px solid #eee;
}

.block .title {
    font-size: 1.1rem;
    font-weight: 700;
    text-transform: uppercase;
    border-bottom: 2px solid #0056b3;
    padding-bottom: 10px;
    margin-bottom: 15px;
    color: #333;
}

footer {
    background-color: #2c3e50;
    color: #000000;
    padding: 40px 0;
    margin-top: 50px;
}

.pkp_structure_head {
    width: 100% !important;
    max-width: 100% !important;
    padding: 0 !important;
}

.pkp_structure_head .container {
    width: 100% !important;
    max-width: 100% !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
}

.navbar-brand, .navbar-header {
    width: 100% !important;
    height: auto !important;
    margin: 0 !important;
    padding: 0 !important;
}

.navbar-brand img {
    width: 100% !important;
    height: auto !important;
    display: block;
    max-width: 100% !important;
    /* Jika gambar header Anda adalah banner panjang, gunakan pengaturan ini: */
    object-fit: cover; 
}

.navbar-default {
    margin-bottom: 0 !important;
    border: none !important;
}

.journal-description {
    background: #ffffff;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    line-height: 1.8;
    color: #444;
    position: relative;
    border-left: 5px solid #0056b3; 
    margin-bottom: 40px;
    margin-top: 20px;
}

.journal-description h3, 
.page_about .article_details h2 {
    font-size: 24px;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.journal-description p {
    font-size: 16px;
    text-align: justify;
    margin-bottom: 15px;
}

.journal-description::before {
    content: "\f10d"; 
    font-family: 'FontAwesome';
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 40px;
    color: rgba(0, 86, 179, 0.1); 
}

.journal-description a {
    color: #0056b3;
    font-weight: 600;
    text-decoration: none;
    border-bottom: 1px dashed #0056b3;
    transition: all 0.3s;
}

.journal-description a:hover {
    color: #003d80;
    border-bottom: 1px solid #003d80;
    background-color: rgba(0, 86, 179, 0.05);
}

@media (max-width: 768px) {
    .journal-description {
        padding: 20px;
        text-align: left;
    }
    .journal-description p {
        text-align: left;
        font-size: 15px;
    }
}

.article-abstract, 
.item.abstract, 
.section.abstract,
.article-details .abstract {
    text-align: justify !important;
    text-justify: inter-word !important;
}

.article-abstract p, 
.item.abstract p, 
.section.abstract p,
.article-details .abstract p {
    text-align: justify !important;
    display: block !important;
}

.article-details .references .value p, 
.item.references .value {
    padding-left: 30px !important;
    text-indent: -30px !important;
    margin-bottom: 15px !important;
}

body {
    background-image: url('https://link-gambar-anda.com/gambar.jpg') !important;
    background-size: cover !important;
    background-attachment: fixed !important; 
    background-position: center center !important; 
    background-repeat: no-repeat !important; 
}


.pkp_structure_main, .pkp_structure_sidebar {
    background: rgba(255, 255, 255, 0.9) !important; 
    padding: 20px;
    border-radius: 8px;
    margin-top: 20px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.pkp_structure_page {
    background: transparent !important;
}

.item.doi {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid #1e6def; 
    margin: 20px 0;
}

.item.doi .label {
    font-weight: bold;
    color: #333;
    display: block;
    margin-bottom: 5px;
}

.item.doi .value a {
    color: #0056b3;
    font-weight: 600;
    text-decoration: none;
}

.item.doi .value a:hover {
    text-decoration: underline;
}

.running-text-container {
    width: 100%;
    background-color: #1e6def; 
    color: #ffffff;
    overflow: hidden;
    white-space: nowrap;
    padding: 10px 0;
    font-weight: bold;
    border-bottom: 2px solid #ffd700; 
}

.running-text-content {
    display: inline-block;
    padding-left: 100%;
    animation: marquee 20s linear infinite;
}

@keyframes marquee {
    0%   { transform: translate(0, 0); }
    100% { transform: translate(-100%, 0); }
}

.block_custom_rkj {
    background: #ffffff !important;
    border-radius: 12px !important;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    margin-bottom: 25px;
    border: 1px solid #e1e1e1;
}

.sidebar-title {
    background: #002147; /* Biru Tua Elegant */
    color: #fff !important;
    padding: 12px;
    text-align: center;
    font-weight: bold;
    margin: 0 !important;
    font-size: 14px;
    letter-spacing: 1px;
}

.sidebar-header-img img {
    width: 100%;
    height: auto;
    display: block;
    padding: 10px;
    background: #f8f9fa;
}

.sidebar-heading {
    background: #1e6def; 
    color: white;
    padding: 8px 15px;
    font-size: 13px;
    font-weight: bold;
    margin: 0;
    border-left: 5px solid #ffd700;
}

.sidebar-menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-menu li {
    border-bottom: 1px solid #eee;
}

.sidebar-menu li a {
    display: block;
    padding: 10px 15px;
    color: #333;
    text-decoration: none;
    font-size: 13px;
    transition: all 0.3s ease;
}

.sidebar-menu li a:hover {
    background: #002147; a */
    color: #fff !important;
    padding-left: 20px;
}

/* Digital Signature RKJ - Hidden */
.block_custom_rkj::after {
    content: "Designed by RKJ";
    display: block;
    font-size: 8px;
    color: #ddd;
    text-align: center;
    padding: 5px;
}

/* --- TOMBOL SUBMIT DESIGNED BY RKJ --- */
.submit-container {
    padding: 15px;
    background: #f8f9fa;
    text-align: center;
    border-bottom: 2px solid #1e6def;
}

.btn-submit-rkj {
    display: block;
    background: linear-gradient(135deg, #002147 0%, #1e6def 100%); 
    color: white !important;
    padding: 15px 10px;
    font-weight: bold;
    font-size: 15px;
    text-decoration: none !important;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(49, 158, 151, 0.4);
    transition: all 0.3s ease;
    border: none;
    letter-spacing: 1px;
}

.btn-submit-rkj:hover {
    transform: translateY(-3px); 
    box-shadow: 0 6px 20px rgba(0, 33, 71, 0.5);
    background: linear-gradient(135deg, #1e6def 0%, #002147 100%); 
}

.btn-submit-rkj i {
    margin-right: 8px;
    font-size: 18px;
}

/* --- ENHANCED SIDEBAR BY RKJ --- */

/* Membuat box sidebar lebih rapi */
.pkp_structure_sidebar .block {
    background: #ffffff !important;
    border: 1px solid #e1e1e1 !important;
    border-radius: 12px !important;
    overflow: hidden;
    margin-bottom: 25px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.03);
}


.sidebar-title, .block .title {
    background: #002147 !important; 
    color: #ffffff !important;
    padding: 15px !important;
    font-size: 14px !important;
    font-weight: 700 !important;
    text-transform: uppercase;
    text-align: center;
    letter-spacing: 1px;
    margin: 0 !important;
    border: none !important;
}

.sidebar-menu, .block ul {
    list-style: none !important;
    padding: 0 !important;
    margin: 0 !important;
}

.sidebar-menu li, .block ul li {
    border-bottom: 1px solid #f0f0f0;
    transition: all 0.2s ease;
}

.sidebar-menu li:last-child {
    border-bottom: none;
}

/* Link Menu Sidebar */
.sidebar-menu li a, .block ul li a {
    display: block;
    padding: 12px 18px;
    color: #444 !important;
    font-size: 13px;
    text-decoration: none !important;
    transition: all 0.3s ease;
}

/* Efek Hover Menu (Toska) */
.sidebar-menu li a:hover, .block ul li a:hover {
    background-color: #f4f7f6;
    color: #1e6def !important; 
    padding-left: 25px; 
}

.sidebar-header-img img {
    padding: 15px;
    background: #fff;
    border-bottom: 1px solid #eee;
}

/* --- MODERN NAVIGATION MENU BY RKJ --- */

/* container menu navigasi */
.navbar-nav > li > a {
    color: #002147 !important; /* Warna Biru Tua */
    font-weight: 600 !important;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 15px 20px !important;
    transition: all 0.3s ease-in-out;
    position: relative;
}

.navbar-nav > li > a:hover {
    color: #1e6def !important; 
    background: transparent !important;
}

.navbar-nav > li > a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 3px;
    display: block;
    margin-top: 5px;
    right: 0;
    background: #1e6def; 
    transition: width 0.3s ease;
    -webkit-transition: width 0.3s ease;
}

.navbar-nav > li > a:hover::after {
    width: 100%;
    left: 0;
    background: #1e6def;
}

.navbar-nav > li.active > a, 
.navbar-nav > li.current > a {
    color: #1e6def !important;
}

.navbar-nav > li.active > a::after {
    width: 100%;
    background: #002147; 
}

@media (max-width: 768px) {
    .navbar-nav > li > a {
        padding: 10px 15px !important;
        border-bottom: 1px solid #eee;
    }
    .navbar-nav > li > a::after {
        display: none; 
    }
}

/* --- REVIEWER SECTION DESIGNED BY RKJ --- */
.reviewer-container-rkj {
    padding: 20px;
    background: #fdfdfd;
}

.reviewer-main-title {
    background: #002147; 
    color: #fff !important;
    text-align: center;
    padding: 15px;
    border-radius: 8px;
    font-weight: bold;
    margin-bottom: 30px;
    letter-spacing: 2px;
}

.reviewer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.reviewer-card {
    background: #ffffff;
    border-radius: 12px;
    padding: 20px;
    border: 1px solid #eee;
    border-top: 4px solid #1e6def; /* Garis Atas Toska */
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.reviewer-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.reviewer-name {
    display: block;
    font-weight: bold;
    color: #002147;
    font-size: 15px;
    margin-bottom: 8px;
    line-height: 1.4;
}

.reviewer-inst {
    display: block;
    color: #666;
    font-size: 13px;
    font-style: italic;
    margin-bottom: 15px;
}

.reviewer-badges {
    border-top: 1px solid #f0f0f0;
    padding-top: 15px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

.reviewer-badges img {
    height: 18px;
    width: auto;
    filter: grayscale(20%);
    transition: 0.3s;
}

.reviewer-badges img:hover {
    filter: grayscale(0%);
    transform: scale(1.1);
}

@media (max-width: 600px) {
    .reviewer-grid {
        grid-template-columns: 1fr;
    }
}

.reviewer-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

/* Lingkaran Foto */
.reviewer-photo {
    width: 70px;
    height: 70px;
    min-width: 70px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid #1e6def; /* Warna Toska */
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.reviewer-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.reviewer-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    border-top: 1px solid #eee;
    padding-top: 10px;
}

.reviewer-photo {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    background-color: #f0f2f5; 
    border: 2px solid #319e97; 
    display: flex;
    justify-content: center;
    align-items: center;
}

.reviewer-photo img {
    width: 90%; 
    height: auto;
    object-fit: contain;
}

.reviewer-card h4 {
    margin-top: 0;
    color: #1A5438;
    border-bottom: 1px solid #eee;
    padding-bottom: 10px;
    margin-bottom: 10px;
}
.reviewer-card li {
    margin-bottom: 8px;
}

.pkp_structure_content.container {
    max-width: 100% !important;
    width: 100% !important;
    padding-left: 30px;
    padding-right: 30px;
}


.pkp_head_wrapper.container {
    max-width: 100% !important;
    width: 100% !important;
    padding-left: 30px;
    padding-right: 30px;
}

@media (max-width: 991px) {
    /* 1. Memaksa Sidebar ke bawah (Stacking) agar lebarnya 100% */
    .pkp_structure_sidebar {
        width: 100% !important;
        float: none !important;
        padding-left: 15px !important;
        padding-right: 15px !important;
        margin-top: 30px;
    }

     .sidebar-menu li a, .block ul li a {
        font-size: 15px !important; 
        padding: 15px 18px !important; 
    }

    
    .pkp_structure_sidebar .block {
        margin-bottom: 20px !important;
        border-radius: 15px !important; 
    }

    .sidebar-title, .block .title {
        font-size: 16px !important;
        padding: 18px !important;
    }
}


@media (max-width: 480px) {
    .pkp_structure_content.container {
        padding-left: 10px !important;
        padding-right: 10px !important;
    }
    
    .sidebar-menu li a, .block ul li a {
        padding-left: 12px !important;
    }
}