/* =====================================================
   MODERN OJS THEME - ELSEVIER / MDPI / SINTA STYLE
   ===================================================== */

/* GLOBAL */
body {
    background: #f4f7fb;
    font-family: Arial, Helvetica, sans-serif;
    color: #1f2937;
    font-size: 15px;
    line-height: 1.7;
}

a {
    color: #006eb6;
    text-decoration: none;
}

a:hover {
    color: #003f73;
    text-decoration: underline;
}

/* PAGE WIDTH */
.pkp_structure_page {
    max-width: 1350px;
    margin: 0 auto;
    background: #ffffff;
    box-shadow: 0 0 18px rgba(0,0,0,0.08);
}

/* HEADER */
.pkp_head_wrapper {
    background: linear-gradient(135deg, #003b73, #0077b6);
    padding: 25px 35px 10px;
}

.pkp_site_name {
    margin: 0;
}

.pkp_site_name a,
.pkp_site_name {
    color: #ffffff !important;
    font-size: 32px;
    font-weight: 700;
    letter-spacing: .5px;
}

/* HEADER IMAGE / LOGO */
.pkp_site_name img {
    max-height: 150px;
    width: auto;
    display: block;
}

/* TOP NAVIGATION */
.pkp_navigation_primary_wrapper {
    background: #ffffff;
    border-bottom: 3px solid #00a6d6;
    box-shadow: 0 2px 8px rgba(0,0,0,.08);
}

.pkp_navigation_primary {
    text-align: left;
}

.pkp_navigation_primary > li > a {
    color: #003b73 !important;
    font-size: 14px;
    font-weight: 600;
    padding: 15px 18px;
    text-transform: uppercase;
}

.pkp_navigation_primary > li > a:hover {
    background: #eef7ff;
    color: #0077b6 !important;
}

/* SEARCH */
.pkp_navigation_search_wrapper a {
    color: #ffffff !important;
    font-weight: 600;
}

/* MAIN LAYOUT */
.pkp_structure_content {
    display: flex;
    gap: 30px;
    padding: 35px;
    background: #f8fafc;
}

.pkp_structure_main {
    flex: 1;
    background: #ffffff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 3px 14px rgba(0,0,0,0.06);
}

.pkp_structure_sidebar {
    width: 280px;
}

/* TITLE */
.page h1,
.page_title,
.obj_issue_toc .heading h1 {
    color: #003b73;
    font-size: 30px;
    font-weight: 700;
    border-bottom: 3px solid #00a6d6;
    padding-bottom: 12px;
    margin-bottom: 25px;
}

h2, h3 {
    color: #003b73;
}

/* JOURNAL DESCRIPTION */
.cmp_announcements,
.obj_issue_summary,
.obj_issue_toc,
.homepage_about,
.page {
    background: #ffffff;
}

/* ARTICLE / ISSUE CARD */
.obj_article_summary,
.obj_issue_summary {
    padding: 18px 20px;
    margin-bottom: 18px;
    border: 1px solid #e5e7eb;
    border-left: 5px solid #0077b6;
    border-radius: 10px;
    background: #ffffff;
    transition: all .25s ease;
}

.obj_article_summary:hover,
.obj_issue_summary:hover {
    box-shadow: 0 6px 18px rgba(0,0,0,.08);
    transform: translateY(-2px);
}

.obj_article_summary .title a {
    color: #003b73;
    font-size: 18px;
    font-weight: 700;
}

.obj_article_summary .meta {
    color: #6b7280;
    font-size: 13px;
}

/* BUTTONS */
.cmp_button,
.cmp_form .buttons button,
button,
input[type="submit"] {
    background: linear-gradient(135deg, #0077b6, #00a6d6);
    color: #ffffff !important;
    border: none;
    border-radius: 6px;
    padding: 9px 18px;
    font-weight: 600;
    cursor: pointer;
}

.cmp_button:hover,
button:hover,
input[type="submit"]:hover {
    background: linear-gradient(135deg, #003b73, #0077b6);
}

/* SIDEBAR BLOCK */
.pkp_block {
    background: #ffffff;
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 26px;
    border: 1px solid #e5e7eb;
    box-shadow: 0 3px 12px rgba(0,0,0,0.08);
}

.pkp_block .title {
    background: linear-gradient(135deg, #003b73, #00a6d6);
    color: #ffffff;
    font-size: 15px;
    font-weight: 700;
    padding: 12px 15px;
    margin: 0;
}

.pkp_block .content {
    padding: 0;
}

.pkp_block ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.pkp_block li {
    border-bottom: 1px solid #e5e7eb;
}

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

.pkp_block li a,
.pkp_block .content a {
    display: block;
    padding: 11px 15px;
    color: #005f99;
    font-weight: 500;
}

.pkp_block li a:hover,
.pkp_block .content a:hover {
    background: #eef7ff;
    color: #003b73;
    padding-left: 20px;
    text-decoration: none;
    transition: .25s;
}

/* CUSTOM BLOCK MENU */
.block_make_submission_link,
.block_custom a {
    display: block;
}

/* IMAGE IN SIDEBAR */
.pkp_block img {
    max-width: 100%;
    height: auto;
}

/* INDEXING LOGO AREA */
.indexing-box,
.indexing,
.logo-indexing {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.indexing-box img,
.indexing img,
.logo-indexing img {
    max-height: 45px;
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    padding: 5px;
}

/* TABLE */
table {
    width: 100%;
    border-collapse: collapse;
    background: #ffffff;
}

table th {
    background: #003b73;
    color: #ffffff;
    padding: 10px;
}

table td {
    border: 1px solid #e5e7eb;
    padding: 10px;
}

/* FORM */
input[type="text"],
input[type="password"],
input[type="email"],
textarea,
select {
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    padding: 8px 10px;
    background: #ffffff;
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: #0077b6;
    box-shadow: 0 0 0 3px rgba(0,119,182,.15);
}

/* BREADCRUMB */
.cmp_breadcrumbs {
    font-size: 14px;
    margin-bottom: 20px;
}

.cmp_breadcrumbs a {
    color: #0077b6;
}

/* FOOTER */
.pkp_structure_footer_wrapper {
    background: #003b73;
    color: #ffffff;
    padding: 25px;
}

.pkp_structure_footer_wrapper a {
    color: #ffffff;
}

/* ANNOUNCEMENT */
.obj_announcement_summary {
    border-left: 5px solid #00a6d6;
    background: #f0f9ff;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 15px;
}

/* CURRENT ISSUE IMAGE */
.current_issue .cover img,
.obj_issue_summary img {
    border-radius: 10px;
    box-shadow: 0 4px 14px rgba(0,0,0,.15);
}

/* MOBILE RESPONSIVE */
@media (max-width: 900px) {
    .pkp_structure_content {
        display: block;
        padding: 20px;
    }

    .pkp_structure_sidebar {
        width: 100%;
        margin-top: 25px;
    }

    .pkp_structure_main {
        padding: 20px;
    }

    .pkp_navigation_primary > li > a {
        display: block;
        padding: 12px;
    }

    .pkp_site_name a,
    .pkp_site_name {
        font-size: 24px;
    }
}