/* ==========================================================
   POSITRON1 — Noble-inspired academic physics journal layout
   OJS target : OJS 3.3 — Default Theme
   Maintainer : Bintoro S. Nugroho (Fisika Untan)
   ========================================================== */

/* 1. DESIGN TOKENS */

:root {
    /* Surfaces */
    --ljo3-bg: #f1f3f5;
    --ljo3-surface: #ffffff;

    /* Typography */
    --ljo3-text: #20252b;
    --ljo3-text-strong: #18273e;
    --ljo3-muted: #68717b;
    --ljo3-info-link: #0879ba;

    /* Brand / interaction */
    --ljo3-accent: #173f5f;
    --ljo3-accent-hover: #0f5f8f;
    --ljo3-nav-hover: #173F5F;
    --ljo3-search-button: #1B13CF;
    --ljo3-search-button-hover: #173F5F;
    --ljo3-highlight: #b88916;
    --ljo3-menu-fill: #18273e;
    --ljo3-menu-outline: #173f5f;

    /* Lines */
    --ljo3-line: #dfe3e7;
    --ljo3-line-strong: #cfd5db;

    /* Layout */
    --ljo3-page-x: 3.2vw;
    --ljo3-content-max: 1200px;
    --ljo3-sidebar-width: 270px;
    --ljo3-content-gap: 16px;
    --ljo3-nav-row-height: 42px;
    --ljo3-nav-item-padding-x: 18px;
    --ljo3-nav-item-gap: 6px;

    /* Header user-navigation alignment */
    --ljo3-user-nav-min-width: 0px;
    --ljo3-user-nav-height: 52px;
    --ljo3-user-nav-link-gap: 10px;
    --ljo3-content-edge:
        max(
            var(--ljo3-page-x),
            calc((100vw - var(--ljo3-content-max)) / 2)
        );

    /* Motion */
    --ljo3-transition-fast: .15s ease;
    --ljo3-transition-menu: .32s cubic-bezier(.4, 0, .2, 1);
}

/* 2. BASE */

html,
body {
    margin: 0;
    padding: 0;
    background: var(--ljo3-bg);
    color: var(--ljo3-text);
}

body,
button,
input,
select,
textarea {
    font-family: "Noto Sans", Arial, sans-serif;
}

body {
    font-size: 14px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

.pkp_structure_content a,
.pkp_structure_footer a {
    color: var(--ljo3-accent-hover);
    text-decoration: none;
    transition:
        color var(--ljo3-transition-fast),
        border-color var(--ljo3-transition-fast),
        background-color var(--ljo3-transition-fast);
}

.pkp_structure_content a:hover,
.pkp_structure_footer a:hover {
    color: var(--ljo3-accent);
}

.pkp_structure_content a:focus-visible,
.pkp_structure_footer a:focus-visible {
    outline: 2px solid var(--ljo3-accent-hover);
    outline-offset: 2px;
}

/* 3. PAGE SHELL */

.pkp_structure_page {
    max-width: none;
    margin: 0;
    background: var(--ljo3-bg);
    box-shadow: none;
}

/* 4. HEADER */

.pkp_structure_head {
    width: 100%;
    background: var(--ljo3-surface);
    border-bottom: 1px solid var(--ljo3-line-strong);
    box-shadow: 0 4px 10px rgba(25, 35, 45, .10);
}

/* ---------- Journal identity appearance ---------- */

.pkp_site_name .is_text,
.pkp_site_name a.is_text {
    display: inline-block;
    padding: 0;
    color: var(--ljo3-accent);
    font-size: 20px;
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -.25px;
    text-transform: none;
}

.pkp_site_name .is_img,
.pkp_site_name a.is_img {
    padding: 0;
}

.pkp_site_name .is_img img {
    width: auto;
    max-height: 56px;
}

.pkp_navigation_primary {
    display: flex;
    align-items: center;
    gap: 0;
    margin: 0;
    padding: 0;
}

.pkp_navigation_primary > li {
    margin: 0 var(--ljo3-nav-item-gap) 0 0;
    padding: 0;
}

.pkp_navigation_primary > li > a {
    padding: 15px var(--ljo3-nav-item-padding-x) 14px;
    border-bottom: 0;
    color: #1f252b;
    font-size: 15px;
    font-weight: 500;
    line-height: 20px;
    position: relative;
    isolation: isolate;
    z-index: 0;
    transition: color var(--ljo3-transition-fast);
}

.pkp_navigation_primary > li > a::before {
    content: "";
    position: absolute;
    z-index: -1;
    inset: 0;
    background: var(--ljo3-nav-hover);
    opacity: 0;
    transition: opacity var(--ljo3-transition-fast);
}

.pkp_navigation_primary > li > a:hover,
.pkp_navigation_primary > li > a:focus-visible {
    border-bottom-color: transparent;
    color: #ffffff;
}

.pkp_navigation_primary > li > a:hover::before,
.pkp_navigation_primary > li > a:focus-visible::before {
    opacity: 1;
}

/* ---------- Dropdowns ---------- */

.pkp_navigation_primary ul {
    min-width: 210px;
    padding: 6px 0;
    background: var(--ljo3-surface);
    border: 1px solid var(--ljo3-line);
    border-radius: 0;
    box-shadow: 0 8px 22px rgba(26, 36, 46, .12);
}

.pkp_navigation_primary ul a {
    padding: 9px 16px;
    color: #303840;
    font-size: 13px;
    font-weight: 400;
}

.pkp_navigation_primary ul a:hover,
.pkp_navigation_primary ul a:focus-visible {
    background: #f5f7f9;
    color: var(--ljo3-accent);
}

/* 4.1 DESKTOP PRIMARY NAVIGATION ROW */

@media (min-width: 992px) {
    .pkp_navigation_primary_row {
        min-height: var(--ljo3-nav-row-height);
        height: var(--ljo3-nav-row-height);
    }

    .pkp_navigation_primary_wrapper {
        display: flex;
        align-items: center;

        width: calc(100% - (2 * var(--ljo3-page-x)));
        max-width: var(--ljo3-content-max);
        height: var(--ljo3-nav-row-height);
        margin: 0 auto;
        padding: 0;
    }

    .pkp_navigation_primary {
        display: flex;
        align-items: center;
        flex: 0 1 auto;
        height: var(--ljo3-nav-row-height);
        margin: 0;
        padding: 0;
    }

    .pkp_navigation_primary > li {
        display: flex;
        align-items: center;
        height: var(--ljo3-nav-row-height);
    }

    .pkp_navigation_primary > li > a {
        display: flex;
        align-items: center;
        justify-content: center;
        height: var(--ljo3-nav-row-height);
        margin: 0;
        padding:
            0
            var(--ljo3-nav-item-padding-x);
    }

    .pkp_navigation_primary > li:first-child > a {
        margin-left: 0;
    }

    .pkp_navigation_search_wrapper {
        float: none;
        display: flex;
        align-items: center;
        justify-content: center;
        align-self: stretch;

        flex: 0 0 var(--ljo3-sidebar-width);
        width: var(--ljo3-sidebar-width);
        height: var(--ljo3-nav-row-height);

        margin: 0 0 0 auto;
        padding: 0;
        border: 0;
    }

    .pkp_navigation_search_wrapper .pkp_search,
    .pkp_navigation_search_wrapper .pkp_search_desktop {
        position: relative;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        height: var(--ljo3-nav-row-height);
        margin: 0;
        padding: 0;
        background: transparent;
        border: 0;
        border-radius: 0;
        box-shadow: none;
        color: var(--ljo3-search-button);
        line-height: 1;
        opacity: .90;
        cursor: pointer;
        text-decoration: none;
        transition:
            color var(--ljo3-transition-fast),
            opacity var(--ljo3-transition-fast);
    }

    .pkp_navigation_search_wrapper .pkp_search::after,
    .pkp_navigation_search_wrapper .pkp_search_desktop::after {
        content: "";
        position: absolute;
        left: 0;
        right: 0;
        bottom: 7px;
        height: 2px;
        background: currentColor;
        transform: scaleX(0);
        transform-origin: center;
        transition: transform var(--ljo3-transition-fast);
    }

    .pkp_navigation_search_wrapper .pkp_search:hover,
    .pkp_navigation_search_wrapper .pkp_search_desktop:hover,
    .pkp_navigation_search_wrapper .pkp_search:focus-visible,
    .pkp_navigation_search_wrapper .pkp_search_desktop:focus-visible {
        background: transparent;
        color: var(--ljo3-search-button-hover);
        opacity: 1;
    }

    .pkp_navigation_search_wrapper .pkp_search:hover::after,
    .pkp_navigation_search_wrapper .pkp_search_desktop:hover::after,
    .pkp_navigation_search_wrapper .pkp_search:focus-visible::after,
    .pkp_navigation_search_wrapper .pkp_search_desktop:focus-visible::after {
        transform: scaleX(1);
    }

    .pkp_navigation_search_wrapper .pkp_search .fa,
    .pkp_navigation_search_wrapper .pkp_search_desktop .fa {
        color: inherit;
    }
}

/* 5. CONTENT GRID */

.pkp_structure_content {
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) var(--ljo3-sidebar-width) !important;
    column-gap: var(--ljo3-content-gap) !important;
    row-gap: 0;
    align-items: stretch !important;

    width: calc(100% - (2 * var(--ljo3-page-x)));
    max-width: var(--ljo3-content-max);
    margin: 15px auto 0;
    padding: 0;
}

.pkp_structure_main {
    grid-column: 1 !important;
    grid-row: 1 !important;
    align-self: stretch;
    float: none !important;

    width: 100% !important;
    min-width: 0;
    max-width: none !important;
    margin: 0 !important;
    padding: 30px;

    background: var(--ljo3-surface);
    border: 0;
}

.pkp_structure_sidebar {
    grid-column: 2 !important;
    grid-row: 1 !important;
    align-self: stretch;
    float: none !important;

    width: 100% !important;
    min-width: 0;
    max-width: none !important;
    margin: 0 !important;
    padding: 16px 14px 20px;

    background: var(--ljo3-surface);
    border: 0;
}

.pkp_structure_main::before,
.pkp_structure_main::after {
    display: none !important;
}

/* 6. BREADCRUMB */

.cmp_breadcrumbs {
    margin: -4px 0 22px;
    padding: 0 0 10px;
    border-bottom: 1px solid var(--ljo3-line);
    color: var(--ljo3-muted);
    font-size: 12px;
}

/* 7. TYPOGRAPHY */

.pkp_structure_main h1,
.pkp_structure_main h2,
.pkp_structure_main h3,
.pkp_structure_main h4 {
    color: #1d252c;
    font-family: "Noto Sans", Arial, sans-serif;
}

.pkp_structure_main h1 {
    margin-top: 0;
    margin-bottom: 22px;
    font-size: 25px;
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -.35px;
}

.pkp_structure_main h2 {
    font-size: 19px;
    font-weight: 700;
    line-height: 1.35;
}

.pkp_structure_main h3 {
    font-size: 16px;
    font-weight: 600;
    line-height: 1.4;
}

.pkp_structure_main p {
    color: #333a41;
}

/* 8. HOMEPAGE / ABOUT / JOURNAL INFORMATION */

.page_index_journal .additional_content {
    margin: 0 0 28px;
    padding: 0;
    background: transparent;
    border: 0;
}

.page_index_journal .homepage_about,
.page_index_journal .journal_description {
    position: relative;
    margin: 0 0 28px;
    padding: 22px 18px 18px;
    background: var(--ljo3-surface);
    border: 1px solid var(--ljo3-line);
}

.page_index_journal .homepage_about > h2:first-child,
.page_index_journal .journal_description > h2:first-child {
    display: inline-block;
    margin: -43px 0 16px -19px;
    padding: 12px 20px;
    background: var(--ljo3-accent);
    color: #ffffff;
    font-size: 11px;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: .25px;
    text-transform: uppercase;
}

/* ---------- Custom Journal Information component ---------- */

.home-about-journal {
    width: 100%;
    color: var(--ljo3-text);
}

.home-about-journal > h2 {
    position: relative;
    margin: 0 0 18px;
    padding: 0 0 10px;
    border-bottom: 0;
    color: var(--ljo3-text-strong);
    font-family: "Noto Sans", Arial, sans-serif;
    font-size: 22px;
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -.2px;
}

.home-about-journal > h2::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 2px;
    background: linear-gradient(
        90deg,
        var(--ljo3-text-strong) 0%,
        #ffffff 100%
    );
}

.home-about-journal > p {
    margin: 0 0 18px;
    color: var(--ljo3-text);
    font-family: "Noto Sans", Arial, sans-serif;
    font-size: 14px;
    font-weight: 400;
    line-height: 1.7;
}

.about-journal-info {
    display: grid;
    grid-template-columns: 170px minmax(0, 1fr);
    gap: 24px;
    align-items: start;
    width: 100%;
    margin-top: 14px;
}

.about-journal-cover {
    min-width: 0;
}

.about-journal-cover img {
    display: block;
    width: 170px;
    max-width: 100%;
    height: auto;
    margin: 0;
    border: 0;
}

.journal-meta {
    min-width: 0;
    padding-top: 0;
    color: var(--ljo3-text-strong);
    font-family: "Noto Sans", Arial, sans-serif;
    font-size: 14px;
}

.meta-row {
    display: grid;
    grid-template-columns: 125px 14px minmax(0, 1fr);
    column-gap: 6px;
    align-items: start;
    margin: 0 0 5px;
    line-height: 1.45;
}

.meta-label {
    font-weight: 700;
}

.meta-colon {
    text-align: center;
}

.meta-value {
    min-width: 0;
    color: var(--ljo3-text);
}

.meta-value a,
.journal-links a {
    color: var(--ljo3-info-link);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
}

.meta-value a:hover,
.journal-links a:hover {
    color: var(--ljo3-text-strong);
}

.meta-value a:focus-visible,
.journal-links a:focus-visible {
    color: var(--ljo3-text-strong);
    outline: 2px solid var(--ljo3-accent-hover);
    outline-offset: 2px;
}

.journal-links {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
    margin-top: 12px;
}

/* ---------- Native homepage image ---------- */

.page_index_journal .homepage_image {
    margin: 0 0 26px;
    text-align: center;
}

.page_index_journal .homepage_image img {
    max-width: 100%;
    height: auto;
    border: 0;
}

/* 9. CURRENT ISSUE */

.page_index_journal .current_issue {
    margin: 28px 0 0;
    padding: 0;
    border-top: 0;
}

.page_index_journal .current_issue > h2,
.page_index_journal .current_issue .current_issue_title {
    margin: 0 0 18px;
    padding: 0;
    color: #1d252c;
    font-size: 19px;
    font-weight: 700;
    text-transform: none;
}

.page_index_journal .current_issue .read_more {
    margin-top: 18px;
}

/* 10. ISSUE TOC / ARTICLE LIST */

.obj_issue_toc {
    margin: 0;
    padding: 0;
    border: 0;
}

.obj_issue_toc .heading {
    margin: 0 0 20px;
    padding: 0 0 16px;
    border-bottom: 1px solid var(--ljo3-line);
}

.obj_issue_toc .sections,
.obj_issue_toc .section {
    margin: 0;
}

.obj_issue_toc .section {
    padding: 0;
}

.obj_issue_toc .section > h2,
.obj_issue_toc .section > h3,
.obj_issue_toc .section .section_title {
    margin: 24px 0 4px;
    padding: 0 0 9px;
    border-bottom: 2px solid var(--ljo3-accent);
    color: var(--ljo3-accent);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: .35px;
    text-transform: uppercase;
}

.obj_article_summary {
    position: relative;
    margin: 0;
    padding: 21px 0 22px;
    border-bottom: 1px solid var(--ljo3-line);
}

.obj_article_summary:last-child {
    border-bottom: 0;
}

.obj_article_summary .title {
    margin: 0 0 7px;
    padding: 0;
    font-size: 16px;
    font-weight: 600;
    line-height: 1.45;
}

.obj_article_summary .title a {
    color: #202931;
}

.obj_article_summary .title a:hover,
.obj_article_summary .title a:focus-visible {
    color: var(--ljo3-accent-hover);
}

.obj_article_summary .authors {
    margin: 0 0 6px;
    color: #4f5963;
    font-size: 13px;
    line-height: 1.55;
}

.obj_article_summary .pages,
.obj_article_summary .published,
.obj_article_summary .meta {
    color: var(--ljo3-muted);
    font-size: 12px;
}

.obj_article_summary .galleys_links,
.obj_article_summary .galleys {
    margin-top: 10px;
}

.obj_article_summary .galley-link,
.obj_article_summary .obj_galley_link,
.obj_galley_link {
    display: inline-block;
    min-width: 58px;
    padding: 6px 11px;
    background: var(--ljo3-surface);
    border: 1px solid var(--ljo3-accent);
    border-radius: 0;
    box-shadow: none;
    color: var(--ljo3-accent);
    font-size: 11px;
    font-weight: 700;
    line-height: 1.2;
    text-align: center;
    text-transform: uppercase;
}

.obj_article_summary .galley-link:hover,
.obj_article_summary .obj_galley_link:hover,
.obj_galley_link:hover {
    background: var(--ljo3-accent);
    color: #ffffff;
}

/* 11. ARTICLE DETAIL */

.obj_article_details .page_title,
.obj_article_details .title {
    color: #1b232b;
    font-size: 27px;
    font-weight: 700;
    line-height: 1.35;
    letter-spacing: -.35px;
}

.obj_article_details .authors,
.obj_article_details .author {
    color: #414b55;
}

.obj_article_details .doi,
.obj_article_details .item.doi {
    color: var(--ljo3-muted);
    font-size: 13px;
}

.obj_article_details .abstract {
    font-size: 14px;
    line-height: 1.75;
}

/* 12. SIDEBAR — GENERIC OJS BLOCKS */

.pkp_structure_sidebar .pkp_block {
    margin: 0 0 18px;
    padding: 0;
    background: transparent;
    border: 0;
}

.pkp_structure_sidebar .pkp_block .title,
.pkp_structure_sidebar .pkp_block h2,
.pkp_structure_sidebar .pkp_block h3 {
    margin: 0 0 11px;
    padding: 0;
    color: var(--ljo3-highlight);
    font-size: 15px;
    font-weight: 700;
    line-height: 1.3;
    text-transform: none;
}

.pkp_structure_sidebar .pkp_block .content {
    padding: 0;
    color: #434c55;
    font-size: 13px;
}

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

.pkp_structure_sidebar .pkp_block li {
    margin: 0 0 8px;
    padding: 0;
}

.pkp_structure_sidebar .pkp_block li > a {
    display: block;
    width: 100%;
    padding: 11px 12px;
    background: var(--ljo3-surface);
    border: 2px solid var(--ljo3-accent);
    border-radius: 0;
    color: var(--ljo3-accent-hover);
    font-size: 13px;
    font-weight: 400;
    line-height: 1.35;
}

.pkp_structure_sidebar .pkp_block li > a:hover,
.pkp_structure_sidebar .pkp_block li > a:focus-visible {
    background: #f5f8fa;
    border-color: var(--ljo3-accent-hover);
    color: var(--ljo3-accent);
}

.pkp_structure_sidebar .pkp_block .content > p {
    margin: 0 0 10px;
}

/* 13. CUSTOM JOURNAL SIDEBAR MENU */

.pkp_structure_sidebar .journal-menu {
    width: 100%;
    margin: 0;
    padding: 0;
}

.pkp_structure_sidebar .journal-menu + .journal-menu {
    margin-top: -2px;
}

.pkp_structure_sidebar .journal-menu > a {
    position: relative;
    isolation: isolate;
    overflow: hidden;

    display: flex;
    align-items: center;

    width: 100%;
    min-height: 45px;
    padding: 9px 11px;

    background: var(--ljo3-surface);
    border: 2px solid var(--ljo3-menu-outline);
    border-radius: 0;
    box-shadow: none;

    color: var(--ljo3-text-strong);
    font-family: "Noto Sans", Arial, sans-serif;
    font-size: 13px;
    font-weight: 400;
    line-height: 1.35;
    text-decoration: none;

    transition:
        color .28s ease,
        border-color .28s ease;
}

.pkp_structure_sidebar .journal-menu > a::before {
    content: "";
    position: absolute;
    z-index: -1;
    inset: 0;

    background: var(--ljo3-menu-fill);
    transform: scaleX(0);
    transform-origin: left center;

    transition: transform var(--ljo3-transition-menu);
}

.pkp_structure_sidebar .journal-menu > a img {
    display: block;
    flex: 0 0 auto;

    width: 17px;
    height: 17px;
    margin: 0 8px 0 0;

    object-fit: contain;

    transition:
        filter .28s ease,
        opacity .28s ease;
}

.pkp_structure_sidebar .journal-menu > a:hover,
.pkp_structure_sidebar .journal-menu > a:focus-visible {
    border-color: var(--ljo3-menu-fill);
    color: #ffffff;
}

.pkp_structure_sidebar .journal-menu > a:hover::before,
.pkp_structure_sidebar .journal-menu > a:focus-visible::before {
    transform: scaleX(1);
}

.pkp_structure_sidebar .journal-menu > a:hover img,
.pkp_structure_sidebar .journal-menu > a:focus-visible img {
    opacity: 1;
    filter: brightness(0) invert(1);
}

.pkp_structure_sidebar .journal-menu > a:focus-visible {
    outline: 2px solid var(--ljo3-accent-hover);
    outline-offset: 2px;
}

/* 14. FORMS / BUTTONS */

.cmp_button,
.pkp_button,
button,
input[type="submit"] {
    border-radius: 0;
    box-shadow: none;
}

.cmp_button,
.pkp_button,
input[type="submit"] {
    background: var(--ljo3-accent);
    border: 1px solid var(--ljo3-accent);
    color: #ffffff;
    font-weight: 600;
}

.cmp_button:hover,
.pkp_button:hover,
input[type="submit"]:hover {
    background: var(--ljo3-accent-hover);
    border-color: var(--ljo3-accent-hover);
}

input[type="text"],
input[type="email"],
input[type="password"],
select,
textarea {
    background: var(--ljo3-surface);
    border: 1px solid var(--ljo3-line-strong);
    border-radius: 0;
}

/* 15. ARCHIVES */

.obj_issue_summary {
    margin: 0 0 20px;
    padding: 0 0 20px;
    border-bottom: 1px solid var(--ljo3-line);
}

.obj_issue_summary .title {
    font-weight: 600;
}

/* 16. FOOTER */

.pkp_structure_footer_wrapper {
    margin-top: 28px;
    background: var(--ljo3-surface);
    border-top: 1px solid var(--ljo3-line-strong);
}

.pkp_structure_footer {
    width: calc(100% - (2 * var(--ljo3-page-x)));
    max-width: var(--ljo3-content-max);
    margin: 0 auto;
    padding: 16px 0 14px;
}

.pkp_footer_content {
    margin: 0 !important;
    padding: 0 !important;
    color: #4f5b66;
    font-size: 13px;
    line-height: 1.55;
}

.journal-footer-info {
    display: grid;
    align-items: start;
    gap: 0;
    width: 100%;
}

.footer-info-block {
    min-width: 0;
    padding: 0 34px;
}

.footer-info-block:first-child {
    padding-left: 0;
}

.footer-info-block:last-child {
    padding-right: 0;
}

.footer-info-block + .footer-info-block {
    border-left: 1px solid #e2e6ea;
}

.footer-info-block h3 {
    position: relative;
    margin: 0 0 12px;
    padding: 0 0 7px;
    color: var(--ljo3-accent);
    font-size: 14px;
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: .01em;
}

.footer-info-block h3::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 34px;
    height: 2px;
    background: var(--ljo3-accent);
}

.footer-info-block p {
    margin: 0 0 12px;
}

.footer-info-block p:last-child {
    margin-bottom: 0;
}

.footer-address p {
    max-width: 360px;
}

.footer-email {
    margin: 0 !important;
}

.footer-email a {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: var(--ljo3-accent-hover);
    font-weight: 500;
    overflow-wrap: anywhere;
}

.footer-email a::before {
    content: "\2709";
    display: inline-block;
    flex: 0 0 auto;
    color: var(--ljo3-accent);
    font-size: 14px;
    line-height: 1;
}

.footer-logo {
    display: flex;
    align-items: center;
    min-height: 68px;
    margin: 0 0 9px !important;
}

.footer-logo img {
    display: block;
    width: auto;
    height: auto;
    max-width: 150px;
    max-height: 70px;
    object-fit: contain;
}

.footer-collaboration .footer-logo img {
    max-width: 165px;
    max-height: 82px;
}

.footer-publisher > p:last-child,
.footer-collaboration > p:last-child {
    color: #3f4b55;
}

.pkp_structure_footer a {
    text-decoration: none;
}

.pkp_structure_footer a:hover {
    color: var(--ljo3-accent);
    text-decoration: underline;
    text-underline-offset: 2px;
}

/* User preference: hide PKP/OJS footer branding. */
.pkp_brand_footer {
    display: none !important;
}

/* 17. TABLET */

@media (max-width: 1100px) and (min-width: 768px) {
    :root {
        --ljo3-page-x: 24px;
        --ljo3-sidebar-width: 245px;
    }

    .pkp_navigation_primary > li {
        margin-right: 28px;
    }

    .footer-info-block {
        padding: 0 22px;
    }
}

/* 18. MOBILE / SMALL TABLET */

@media (max-width: 767px) {
    :root {
        --ljo3-page-x: 15px;
    }

    .journal-footer-info {
        grid-template-columns: 1fr;
    }

    .footer-info-block {
        padding: 0;
    }

    .footer-info-block + .footer-info-block {
        margin-top: 18px;
        padding-top: 18px;
        border-left: 0;
        border-top: 1px solid #e2e6ea;
    }

    .footer-info-block h3 {
        margin-bottom: 14px;
    }

    .footer-logo {
        min-height: 0;
    }

    .pkp_structure_head {
        box-shadow: 0 2px 8px rgba(25, 35, 45, .08);
    }

    .pkp_site_name .is_text,
    .pkp_site_name a.is_text {
        font-size: 17px;
    }

    .pkp_navigation_primary {
        display: block;
    }

    .pkp_navigation_primary > li {
        margin: 0;
        border-bottom: 1px solid #eef0f2;
    }

    .pkp_navigation_primary > li > a {
        display: block;
        padding: 11px 0;
        border-bottom: 0;
    }

    .pkp_structure_content {
        display: block !important;
        width: 100%;
        margin-top: 10px;
        padding: 0 var(--ljo3-page-x);
    }

    .pkp_structure_main {
        padding: 22px 17px;
    }

    .pkp_structure_sidebar {
        margin-top: 12px !important;
        padding: 18px 15px;
    }

    .pkp_structure_main h1 {
        font-size: 22px;
    }

    .obj_article_details .page_title,
    .obj_article_details .title {
        font-size: 22px;
    }

    .home-about-journal > h2 {
        font-size: 20px;
    }

    .about-journal-info {
        grid-template-columns: 150px minmax(0, 1fr);
        gap: 18px;
    }

    .about-journal-cover img {
        width: 150px;
    }

    .meta-row {
        grid-template-columns: 110px 12px minmax(0, 1fr);
        column-gap: 5px;
    }

    .pkp_structure_sidebar .journal-menu > a {
        min-height: 43px;
        padding: 9px 10px;
        font-size: 13px;
    }

    .pkp_structure_sidebar .journal-menu > a img {
        width: 16px;
        height: 16px;
        margin-right: 8px;
    }

    .pkp_structure_footer {
        width: 100%;
        padding: 16px var(--ljo3-page-x) 14px;
    }
}

/* 19. SMALL PHONES */

@media (max-width: 520px) {
    .about-journal-info {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .about-journal-cover img {
        width: 145px;
    }

    .meta-row {
        grid-template-columns: 105px 12px minmax(0, 1fr);
    }

    .journal-links {
        gap: 8px 14px;
    }
}

/* 20. VERY WIDE SCREENS */

@media (min-width: 1500px) {
    .pkp_structure_main {
        padding: 34px 38px;
    }
}

/* 21. REDUCED MOTION */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: .01ms !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
    }
}

/* 22. HEADER / NAVIGATION REFINEMENTS */

/* 22.1 HEADER ACCOUNT LINKS */

.pkp_navigation_user a[href*="/register"],
.pkp_navigation_user a[href*="/login"] {
    color: #1B13CF;
}

/* 22.2 LOGGED-IN USER NAVIGATION */

/* Logged-in username only; do not alter Register/Login links. */
.pkp_navigation_user > li.profile > a:not([href*="/register"]):not([href*="/login"]) {
    color: #002FEB;
}

/* Hide the OJS task counter beside the logged-in username. */
.pkp_navigation_user .task_count,
#navigationUser .task_count,
#navigationUserWrapper .task_count {
    display: none !important;
}

/* 22.3 DESKTOP USER-NAV ALIGNMENT */

@media (min-width: 992px) {
    .pkp_navigation_user_wrapper {
        position: absolute;
        top: 27px;

        left: auto;
        right: calc(
            var(--ljo3-content-edge) -
            (50vw - 50%)
        );
        transform: none;

        display: flex;
        align-items: center;
        justify-content: center;

        width: max-content;
        min-width: var(--ljo3-user-nav-min-width);
        height: var(--ljo3-user-nav-height);
        margin: 0;
        padding: 0 9px;

        border-top: 0;
        border-bottom: 0;
        border-left: 1px solid var(--ljo3-line);
        border-right: 1px solid var(--ljo3-line);

        box-sizing: border-box;
    }

    .pkp_navigation_user_wrapper .pkp_navigation_user {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: var(--ljo3-user-nav-link-gap);

        width: auto;
        min-width: 0;
        margin: 0;
        padding: 0;

        border: 0;
        white-space: nowrap;
    }

    .pkp_navigation_user_wrapper .pkp_navigation_user > li {
        margin: 0;
        padding: 0;
    }

    .pkp_navigation_user_wrapper .pkp_navigation_user > li:last-child > a {
        margin-right: 0;
    }
}

/* 22.4 PRIMARY NAVIGATION BAR */

.pkp_site_nav_menu {
    background: transparent;
}

.pkp_navigation_primary_row {
    position: relative;
    background: transparent;
    box-shadow: none;
    clip-path: none;
    isolation: isolate;
}

.pkp_navigation_primary_row::before {
    content: "";
    position: absolute;
    z-index: -1;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 100vw;
    transform: translateX(-50%);
    pointer-events: none;
}

/* 22.5 REGISTER / LOGIN ICONS */

.pkp_navigation_user a[href*="/register"],
.pkp_navigation_user a[href*="/login"] {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.pkp_navigation_user a[href*="/register"]::before,
.pkp_navigation_user a[href*="/login"]::before {
    content: "";
    display: inline-block;
    flex: 0 0 16px;
    width: 16px;
    height: 16px;
    background-color: currentColor;
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
    -webkit-mask-position: center;
    mask-position: center;
    -webkit-mask-size: contain;
    mask-size: contain;
}

/* Register */
.pkp_navigation_user a[href*="/register"]::before {
    -webkit-mask-image: url("https://api.iconify.design/mdi/account-plus-outline.svg");
    mask-image: url("https://api.iconify.design/mdi/account-plus-outline.svg");
}

/* Login */
.pkp_navigation_user a[href*="/login"]::before {
    -webkit-mask-image: url("https://api.iconify.design/mdi/login.svg");
    mask-image: url("https://api.iconify.design/mdi/login.svg");
}

/* 22.6 LOGGED-IN USER ICON */

.pkp_navigation_user > li.profile > a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.pkp_navigation_user > li.profile > a::before {
    content: "";
    display: inline-block;
    flex: 0 0 16px;
    width: 16px;
    height: 16px;

    background-color: currentColor;

    -webkit-mask-image: url("https://api.iconify.design/mdi/account-outline.svg");
    mask-image: url("https://api.iconify.design/mdi/account-outline.svg");

    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;

    -webkit-mask-position: center;
    mask-position: center;

    -webkit-mask-size: contain;
    mask-size: contain;
}

/* 22.7 SEARCH ICON SPACING */

.pkp_navigation_search_wrapper .fa-search {
    margin-right: 6px;
}

/* 22.8 DESKTOP LOGO REFINEMENT */

@media (min-width: 992px) {
    .pkp_site_name .is_img,
    .pkp_site_name a.is_img {
        position: relative;
        top: -4px;
    }

    .pkp_site_name .is_img img,
    .pkp_site_name a.is_img img {
        max-height: 62px;
    }
}

/* 22.9 PRIMARY MENU ALIGNMENT */

@media (min-width: 992px) {
    .pkp_navigation_primary {
        position: relative;
        left: calc(
            var(--ljo3-content-edge)
            - (50vw - 50%)
        );
    }
}

/* 23. FOOTER ASSET REFINEMENTS */

/* 23.1 FOOTER LOGO CONSTRAINTS */

.pkp_footer_content .journal-footer-info img {
    display: block;
    width: auto !important;
    height: auto !important;
    max-width: 140px !important;
    max-height: 72px !important;
    object-fit: contain;
}

/* Universitas Tanjungpura logo */
.pkp_footer_content .journal-footer-info img[src*="Lambang-Untan"],
.pkp_footer_content .journal-footer-info img[alt*="Tanjungpura"] {
    width: auto !important;
    height: auto !important;
    max-width: 64px !important;
    max-height: 64px !important;
}

/* Physical Society of Indonesia logo */
.pkp_footer_content .journal-footer-info img[src*="logo-psi"],
.pkp_footer_content .journal-footer-info img[alt*="Physical Society"] {
    width: auto !important;
    height: auto !important;
    max-width: 165px !important;
    max-height: 82px !important;
}

/* 24. RESPONSIVE HEADER / NAVIGATION */

/* 24.1 RESPONSIVE HEADER IDENTITY */

@media (max-width: 991px) {
    .pkp_site_name_wrapper {
        height: 112px;
        min-height: 112px;
    }

    .pkp_site_name {
        height: 112px;
        display: flex;
        align-items: center;
    }

    .pkp_site_name .is_img,
    .pkp_site_name a.is_img {
        display: flex;
        align-items: center;
        height: 112px;
        min-height: 0;
        margin-top: 0;
        margin-bottom: 0;
        padding: 0;
    }

    .pkp_site_name .is_img img,
    .pkp_site_name a.is_img img {
        display: block;
        width: auto;
        height: auto;
        max-width: 100%;
        max-height: 62px;
    }
}

/* 24.2 RESPONSIVE TOP NAVIGATION */

@media (max-width: 991px) {

    .pkp_site_nav_toggle {
        display: none !important;
    }

    .pkp_site_nav_menu {
        display: block !important;
        position: relative !important;
        top: auto !important;
        left: 50% !important;
        width: 100vw !important;
        margin: 0 !important;
        padding: 0 !important;
        transform: translateX(-50%);
        background: transparent;
        z-index: 100;
    }

    .pkp_site_nav_menu .pkp_navigation_user_wrapper,
    .pkp_site_nav_menu .pkp_navigation_user {
        display: none !important;
    }

    .pkp_navigation_primary_row {
        display: block !important;
        width: 100%;
        min-height: var(--ljo3-nav-row-height);
        height: var(--ljo3-nav-row-height);
    }

    .pkp_navigation_primary_wrapper {
        display: flex !important;
        align-items: center;
        width: calc(100% - (2 * var(--ljo3-page-x)));
        max-width: var(--ljo3-content-max);
        height: var(--ljo3-nav-row-height);
        margin: 0 auto;
        padding: 0;
        overflow: visible;
        white-space: nowrap;
    }

    .pkp_navigation_primary {
        position: static !important;
        left: auto !important;
        display: flex !important;
        align-items: center;
        flex: 0 0 auto;
        height: var(--ljo3-nav-row-height);
        margin: 0;
        padding: 0;
    }

    .pkp_navigation_primary > li {
        display: flex !important;
        align-items: center;
        flex: 0 0 auto;
        height: var(--ljo3-nav-row-height);
        margin: 0 var(--ljo3-nav-item-gap) 0 0;
        padding: 0;
        border-bottom: 0;
    }

    .pkp_navigation_primary > li > a {
        display: flex !important;
        align-items: center;
        justify-content: center;
        height: var(--ljo3-nav-row-height);
        margin: 0;
        padding: 0 var(--ljo3-nav-item-padding-x);
        border-bottom: 0;
        line-height: 1;
    }

    .pkp_navigation_primary > li {
        position: relative;
    }

    .pkp_navigation_primary > li > ul,
    .pkp_navigation_primary > li > .dropdown-menu {
        position: absolute;
        top: 100%;
        left: 0 !important;
        z-index: 2000;
        display: none;
        min-width: 210px;
        margin: 0;
        padding: 6px 0;
        white-space: normal;
        background: var(--ljo3-surface);
        border: 1px solid var(--ljo3-line);
        border-radius: 0;
        box-shadow: 0 8px 22px rgba(26, 36, 46, .12);
    }

    .pkp_navigation_primary > li:hover > ul,
    .pkp_navigation_primary > li:focus-within > ul,
    .pkp_navigation_primary > li:hover > .dropdown-menu,
    .pkp_navigation_primary > li:focus-within > .dropdown-menu,
    .pkp_navigation_primary > li > .dropdown-menu.show,
    .pkp_navigation_primary [data-toggle="dropdown"]:hover + .dropdown-menu,
    .pkp_navigation_primary [data-toggle="dropdown"]:focus + .dropdown-menu,
    .pkp_navigation_primary .dropdown-menu:hover {
        display: block !important;
        left: 0 !important;
    }

    .pkp_navigation_primary > li > ul > li,
    .pkp_navigation_primary > li > .dropdown-menu > li {
        display: block !important;
        height: auto;
        margin: 0;
        padding: 0;
    }

    .pkp_navigation_primary > li > ul a,
    .pkp_navigation_primary > li > .dropdown-menu a {
        display: block !important;
        height: auto;
        padding: 9px 16px;
        white-space: normal;
    }

    .pkp_navigation_search_wrapper {
        float: none;
        display: flex !important;
        align-items: center;
        justify-content: center;
        flex: 0 0 auto;
        height: var(--ljo3-nav-row-height);
        margin: 0 0 0 auto;
        padding: 0 18px;
        border: 0;
    }

    .pkp_navigation_search_wrapper .pkp_search,
    .pkp_navigation_search_wrapper .pkp_search_desktop {
        position: relative;
        display: inline-flex !important;
        align-items: center;
        justify-content: center;
        height: var(--ljo3-nav-row-height);
        margin: 0;
        padding: 0;
        background: transparent;
        border: 0;
        border-radius: 0;
        box-shadow: none;
        color: var(--ljo3-search-button);
        line-height: 1;
        opacity: .90;
        cursor: pointer;
        text-decoration: none;
        transition:
            color var(--ljo3-transition-fast),
            opacity var(--ljo3-transition-fast);
    }

    .pkp_navigation_search_wrapper .pkp_search::after,
    .pkp_navigation_search_wrapper .pkp_search_desktop::after {
        content: "";
        position: absolute;
        left: 0;
        right: 0;
        bottom: 7px;
        height: 2px;
        background: currentColor;
        transform: scaleX(0);
        transform-origin: center;
        transition: transform var(--ljo3-transition-fast);
    }

    .pkp_navigation_search_wrapper .pkp_search:hover,
    .pkp_navigation_search_wrapper .pkp_search_desktop:hover,
    .pkp_navigation_search_wrapper .pkp_search:focus-visible,
    .pkp_navigation_search_wrapper .pkp_search_desktop:focus-visible {
        color: var(--ljo3-search-button-hover);
        opacity: 1;
    }

    .pkp_navigation_search_wrapper .pkp_search:hover::after,
    .pkp_navigation_search_wrapper .pkp_search_desktop:hover::after,
    .pkp_navigation_search_wrapper .pkp_search:focus-visible::after,
    .pkp_navigation_search_wrapper .pkp_search_desktop:focus-visible::after {
        transform: scaleX(1);
    }

    .pkp_navigation_search_wrapper .pkp_search .fa,
    .pkp_navigation_search_wrapper .pkp_search_desktop .fa {
        color: inherit;
    }
}

@media (min-width: 768px) and (max-width: 991px) {
    .pkp_navigation_search_wrapper {
        flex-basis: var(--ljo3-sidebar-width);
        width: var(--ljo3-sidebar-width);
        padding-left: 0;
        padding-right: 0;
    }
}

@media (max-width: 767px) {
    .pkp_navigation_search_wrapper {
        min-width: 104px;
    }
}

/* 24.3 SMALL-SCREEN NAV COMPACTION */

@media (max-width: 520px) {
    .pkp_navigation_primary > li {
        margin-right: 2px;
    }

    .pkp_navigation_primary > li > a {
        padding-left: 9px !important;
        padding-right: 9px !important;
        font-size: 13px;
    }

    .pkp_navigation_search_wrapper {
        min-width: auto;
        padding-left: 10px;
        padding-right: 10px;
    }

    .pkp_navigation_search_wrapper .pkp_search,
    .pkp_navigation_search_wrapper .pkp_search_desktop {
        font-size: 13px;
    }
}

/* 25. STACKING / HEADER BACKGROUND */

/* 25.1 NAVIGATION STACKING */

.pkp_structure_head {
    position: relative;
    z-index: 1000;
    overflow: visible;
}

.pkp_site_nav_menu {
    overflow: visible;
}

.pkp_navigation_primary_row {
    z-index: 1100;
    overflow: visible;
}

.pkp_navigation_primary_wrapper,
.pkp_navigation_primary {
    position: relative;
    z-index: 1101;
    overflow: visible;
}

.pkp_navigation_primary > li > ul,
.pkp_navigation_primary > li > .dropdown-menu {
    z-index: 3000;
}

/* 25.2 SCIENTIFIC HEADER BACKGROUND */

.pkp_structure_head {
    background-color: #ffffff;
    background-image:
        linear-gradient(
            rgba(255, 255, 255, .16),
            rgba(255, 255, 255, .16)
        ),
        url("https://i.ibb.co.com/ZzB0PKG0/back-Ground.png");
    background-repeat: no-repeat;
    background-position: center 58%;
    background-size: cover;
}

.pkp_head_wrapper,
.pkp_site_name_wrapper,
.pkp_site_name,
.pkp_navigation_user_wrapper {
    background-color: transparent !important;
}

/* Preserve the existing solid light-blue navigation strip. */
.pkp_navigation_primary_row::before {
    background: #ccddf6;
}

/* 26. FOOTER LAYOUT REFINEMENTS */

/* 26.1 FOOTER PUBLISHER LAYOUT */

.footer-publisher-body {
    display: flex;
    align-items: center;
    gap: 14px;
    width: 100%;
    min-width: 0;
}

.footer-publisher .footer-logo {
    flex: 0 0 64px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    min-height: 0;
    margin: 0 !important;
}

.footer-publisher .footer-logo img {
    display: block;
    width: auto !important;
    height: auto !important;
    max-width: 64px !important;
    max-height: 64px !important;
    object-fit: contain;
}

.footer-publisher-text {
    min-width: 0;
    margin: 0;
    color: #3f4b55;
    font-size: 13px;
    line-height: 1.5;
}

/* Keep the same compact relationship on tablet widths. */
@media (max-width: 1100px) and (min-width: 768px) {
    .footer-publisher-body {
        gap: 12px;
    }

    .footer-publisher .footer-logo {
        flex-basis: 60px;
    }

    .footer-publisher .footer-logo img {
        max-width: 60px !important;
        max-height: 60px !important;
    }
}

@media (max-width: 767px) {
    .footer-publisher-body {
        align-items: center;
        gap: 12px;
    }

    .footer-publisher .footer-logo {
        flex-basis: 58px;
    }

    .footer-publisher .footer-logo img {
        max-width: 58px !important;
        max-height: 58px !important;
    }

    .footer-publisher-text {
        font-size: 12.5px;
        line-height: 1.5;
    }
}

/* 26.2 FOOTER COLUMN / COLLABORATION LAYOUT */

/* Preserve the established three-column proportions. */
.journal-footer-info {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr) minmax(0, 1fr);
}

.footer-collaboration {
    display: grid;
    grid-template-columns: max-content minmax(0, 1fr);
    grid-template-rows: auto auto;
    column-gap: 14px;
    align-items: center;
}

.footer-collaboration > h3 {
    grid-column: 1 / -1;
    grid-row: 1;
}

.footer-collaboration > .footer-logo {
    grid-column: 1;
    grid-row: 2;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    min-height: 0;
    margin: 0 !important;
}

.footer-collaboration > p:last-child {
    grid-column: 2;
    grid-row: 2;
    align-self: center;
    margin: 0 !important;
    color: #3f4b55;
    line-height: 1.5;
}

.footer-collaboration .footer-logo img,
.pkp_footer_content .footer-collaboration img[src*="logo-psi"],
.pkp_footer_content .footer-collaboration img[alt*="Physical Society"] {
    width: auto !important;
    height: auto !important;
    max-width: 76px !important;
    max-height: 76px !important;
    object-fit: contain;
}

@media (max-width: 1100px) and (min-width: 768px) {
    .journal-footer-info {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .footer-collaboration {
        grid-template-columns: max-content minmax(0, 1fr);
        column-gap: 12px;
    }

    .footer-collaboration .footer-logo img,
    .pkp_footer_content .footer-collaboration img[src*="logo-psi"],
    .pkp_footer_content .footer-collaboration img[alt*="Physical Society"] {
        max-width: 68px !important;
        max-height: 68px !important;
    }
}

@media (max-width: 767px) {
    /* Restore a single-column outer footer on phones. This must appear
       after the desktop/tablet three-column refinement above so that the
       mobile rule wins in the cascade. */
    .journal-footer-info {
        grid-template-columns: minmax(0, 1fr);
    }

    .footer-collaboration {
        grid-template-columns: max-content minmax(0, 1fr);
        column-gap: 12px;
    }

    .footer-collaboration .footer-logo img,
    .pkp_footer_content .footer-collaboration img[src*="logo-psi"],
    .pkp_footer_content .footer-collaboration img[alt*="Physical Society"] {
        max-width: 64px !important;
        max-height: 64px !important;
    }
}

/* 27. LOGGED-IN USER DROPDOWN STACKING */

.pkp_head_wrapper,
.pkp_site_name_wrapper {
    overflow: visible;
}

@media (min-width: 992px) {
    .pkp_navigation_user_wrapper {
        z-index: 2200;
        overflow: visible;
    }

    .pkp_navigation_user_wrapper .pkp_navigation_user {
        position: relative;
        z-index: 2201;
        overflow: visible;
    }

    .pkp_navigation_user_wrapper .pkp_navigation_user > li.profile {
        position: relative;
        z-index: 2202;
    }

    .pkp_navigation_user_wrapper .pkp_navigation_user > li.profile > ul,
    .pkp_navigation_user_wrapper .pkp_navigation_user > li.profile > .dropdown-menu {
        z-index: 3200 !important;
    }
}

/* ==========================================================
   28. CUSTOM BLOCKS IN SIDEBAR — UNIFIED INFORMATION STYLE
   Applies automatically to OJS Custom Block Plugin blocks.
   IMPORTANT: any custom block containing .journal-menu or .journal-sidebar-menu is excluded,
   so the existing main sidebar menu remains completely untouched.
   ========================================================== */

/* ---------- 28.1 Information-card shell ---------- */

.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) {
    width: 100%;
    margin: 0 0 18px;
    padding: 0 10px 15px;
    background: var(--ljo3-surface);
    border: 2px solid var(--ljo3-menu-outline);
    border-radius: 0;
    box-shadow: none;
    box-sizing: border-box;
}

/* Neutralise optional wrapper classes already used in existing custom
   blocks. The outer OJS custom block is the card; nested wrappers do
   not create a second card or an additional bottom rule. */
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-custom-box,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-info-card {
    width: 100%;
    margin: 0;
    padding: 0;
    background: transparent;
    border: 0;
    box-shadow: none;
}

/* ---------- 28.2 Block heading ----------
   The heading is the group label. It uses the same light-blue visual
   language as the journal navigation strip. The label text is black
   and regular-weight. No separate horizontal divider is used. */

.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) > .title,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) > h2,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) > h3,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .content > h2:first-child,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .content > h3:first-child,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-custom-box__title,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-info-title {
    display: block;
    margin: 0 -10px 12px !important;
    padding: 10px 10px 9px !important;
    background: #ccddf6 !important;
    border: 0 !important;
    color: #000000 !important;
    font-family: "Noto Sans", Arial, sans-serif;
    font-size: 14px !important;
    /* Font weight follows the HTML markup/inline setting. */
    font-weight: inherit;
    line-height: 1.3 !important;
    text-transform: none !important;
}

/* ---------- 28.3 Content ---------- */

.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .content,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-custom-box__content,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-info-content {
    width: 100%;
    margin: 0;
    padding: 0;
    color: #434c55;
    font-size: 13px;
    line-height: 1.45;
}

.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .content > :first-child,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-custom-box__content > :first-child,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-info-content > :first-child {
    margin-top: 0;
}

.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .content > :last-child,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-custom-box__content > :last-child,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-info-content > :last-child {
    margin-bottom: 0;
}

/* Lists inside information blocks belong to one visual group. */
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) ul,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) ol {
    margin: 0;
    padding: 0;
    list-style: none;
}

.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) li {
    margin: 0 0 6px;
    padding: 0;
    border: 0;
}

.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) li:last-child {
    margin-bottom: 0;
}

/* Ordinary links are informational links, not navigation buttons. */
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) li > a,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-custom-box__content a:not(.sidebar-resource-item),
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-info-content a:not(.sidebar-info-item) {
    display: inline;
    width: auto;
    margin: 0;
    padding: 0;
    background: transparent;
    border: 0;
    border-radius: 0;
    box-shadow: none;
    color: var(--ljo3-info-link);
    font-size: inherit;
    font-weight: 500;
    line-height: inherit;
    text-decoration: none;
}

.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) li > a:hover,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) li > a:focus-visible,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-custom-box__content a:not(.sidebar-resource-item):hover,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-custom-box__content a:not(.sidebar-resource-item):focus-visible,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-info-content a:not(.sidebar-info-item):hover,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-info-content a:not(.sidebar-info-item):focus-visible {
    background: transparent;
    border-color: transparent;
    color: var(--ljo3-accent);
    text-decoration: underline;
    text-underline-offset: 2px;
}

/* Images remain responsive by default. */
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) img {
    max-width: 100%;
    height: auto;
}

/* ---------- 28.4 Resource rows ----------
   Supports the existing Preparing the Article markup. The resources
   remain in one group: spacing separates them; no rule is drawn between
   Template and Mendeley Manual. */

.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-custom-box__content--grid-2 {
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) !important;
    gap: 7px !important;
}

.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-resource-item,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-info-item {
    display: grid !important;
    grid-template-columns: 56px minmax(0, 1fr) !important;
    grid-template-rows: auto !important;
    column-gap: 12px !important;
    align-items: center !important;
    width: 100% !important;
    min-height: 62px;
    margin: 0 !important;
    padding: 4px 2px !important;
    background: transparent !important;
    border: 0 !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    color: var(--ljo3-info-link) !important;
    text-decoration: none !important;
}

/* Explicitly prevent separators between items in the same block. */
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-resource-item + .sidebar-resource-item,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-info-item + .sidebar-info-item {
    margin-top: 0 !important;
    padding-top: 4px !important;
    border-top: 0 !important;
}

.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-resource-logo,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-info-item img {
    grid-column: 1 !important;
    grid-row: 1 !important;
    display: block !important;
    width: 52px !important;
    height: 52px !important;
    max-width: 52px !important;
    max-height: 52px !important;
    margin: 0 auto !important;
    padding: 0 !important;
    object-fit: contain !important;
}

.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-resource-label,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-info-item span,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-info-item .sidebar-info-label {
    grid-column: 2 !important;
    grid-row: 1 !important;
    display: block !important;
    min-width: 0;
    margin: 0 !important;
    padding: 0 !important;
    color: inherit !important;
    font-size: 13px !important;
    font-weight: 500 !important;
    line-height: 1.35 !important;
    text-align: left;
}

.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-resource-item:hover,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-resource-item:focus-visible,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-info-item:hover,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-info-item:focus-visible {
    color: var(--ljo3-accent) !important;
    text-decoration: none !important;
}

/* ---------- 28.5 Optional indexing/logo collections ---------- */

.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-logo-grid,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-index-logo-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px 10px;
    align-items: center;
}

.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-logo-grid > a,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-index-logo-grid > a {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 5px;
    background: transparent;
    border: 0;
    text-decoration: none;
}

.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-logo-grid img,
.pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-index-logo-grid img {
    display: block;
    width: auto !important;
    height: auto !important;
    max-width: 100% !important;
    max-height: 38px !important;
    object-fit: contain;
}

/* ---------- 28.6 Mobile ---------- */

@media (max-width: 767px) {
    .pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) {
        padding: 0 10px 14px;
    }

    .pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-resource-item,
    .pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-info-item {
        grid-template-columns: 52px minmax(0, 1fr) !important;
        column-gap: 10px !important;
        min-height: 58px;
    }

    .pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-resource-logo,
    .pkp_structure_sidebar .pkp_block.block_custom:not(:has(.journal-menu)):not(:has(.journal-sidebar-menu)) .sidebar-info-item img {
        width: 48px !important;
        height: 48px !important;
        max-width: 48px !important;
        max-height: 48px !important;
    }
}

/* ==========================================================
   29. SIDEBAR MAIN MENU — TRUE VERTICAL JOIN
   Removes spacing introduced by OJS wrapper elements around
   .journal-menu. Only wrappers containing .journal-menu are affected.
   ========================================================== */

/* OJS/custom-block editors may wrap each menu row in <p>, <li>, or div.
   Remove those wrapper margins so the menu rows can actually touch. */
.pkp_structure_sidebar .pkp_block .content > p:has(.journal-menu),
.pkp_structure_sidebar .pkp_block .content > li:has(.journal-menu),
.pkp_structure_sidebar .pkp_block .content > div:has(> .journal-menu),
.pkp_structure_sidebar .pkp_block li:has(> .journal-menu) {
    margin-top: 0 !important;
    margin-bottom: 0 !important;
    padding-top: 0 !important;
    padding-bottom: 0 !important;
}

/* The menu element itself must not contribute any vertical gap. */
.pkp_structure_sidebar .journal-menu {
    margin-top: 0 !important;
    margin-bottom: 0 !important;
}

/* Directly adjacent .journal-menu elements: overlap their 2 px borders. */
.pkp_structure_sidebar .journal-menu + .journal-menu {
    margin-top: -2px !important;
}

/* When each menu item is wrapped separately, overlap the wrappers instead. */
.pkp_structure_sidebar .pkp_block .content > p:has(.journal-menu) + p:has(.journal-menu),
.pkp_structure_sidebar .pkp_block .content > li:has(.journal-menu) + li:has(.journal-menu),
.pkp_structure_sidebar .pkp_block .content > div:has(> .journal-menu) + div:has(> .journal-menu),
.pkp_structure_sidebar .pkp_block li:has(> .journal-menu) + li:has(> .journal-menu) {
    margin-top: -2px !important;
}

/* ==========================================================
   30. MAIN SIDEBAR MENU — ACTUAL CUSTOM-BLOCK MARKUP
   Targets the current HTML structure:
   .journal-sidebar-menu > .sidebar-section > a

   Purpose: remove the vertical gap between consecutive menu buttons
   and overlap their 2 px borders so adjacent buttons share one rule.
   No visual properties of the buttons themselves are changed here.
   ========================================================== */

/* The main-menu Custom Block is navigation, not an information card. */
.pkp_structure_sidebar .pkp_block.block_custom:has(.journal-sidebar-menu) {
    width: 100%;
    margin: 0 0 18px;
    padding: 0;
    background: transparent;
    border: 0;
    border-radius: 0;
    box-shadow: none;
}

.pkp_structure_sidebar .pkp_block.block_custom:has(.journal-sidebar-menu) .content {
    width: 100%;
    margin: 0;
    padding: 0;
}

/* Remove any gap introduced on the actual menu and section wrappers. */
.pkp_structure_sidebar .journal-sidebar-menu {
    display: block !important;
    width: 100%;
    margin: 0 !important;
    padding: 0 !important;
    gap: 0 !important;
    row-gap: 0 !important;
}

.pkp_structure_sidebar .journal-sidebar-menu > .sidebar-section {
    position: relative;
    display: block !important;
    width: 100%;
    margin: 0 !important;
    padding: 0 !important;
}

/* The link itself must not add an external vertical margin. */
.pkp_structure_sidebar .journal-sidebar-menu > .sidebar-section > a {
    margin-top: 0 !important;
    margin-bottom: 0 !important;
}

/* Each button uses a 2 px border. Pull the next section upward by
   exactly 2 px so the touching borders render as one shared line. */
.pkp_structure_sidebar .journal-sidebar-menu > .sidebar-section + .sidebar-section {
    margin-top: -2px !important;
}

/* Keep the active/hovered row above the shared border of its neighbour. */
.pkp_structure_sidebar .journal-sidebar-menu > .sidebar-section:hover,
.pkp_structure_sidebar .journal-sidebar-menu > .sidebar-section:focus-within {
    z-index: 2;
}


/* ---------- 30.1 Match the established main-menu button appearance ----------
   These selectors map the existing .journal-menu design to the actual
   .journal-sidebar-menu / .sidebar-section HTML supplied by the journal. */
.pkp_structure_sidebar .journal-sidebar-menu > .sidebar-section > a {
    position: relative;
    isolation: isolate;
    overflow: hidden;

    display: flex;
    align-items: center;

    width: 100%;
    min-height: 45px;
    padding: 9px 11px;

    background: var(--ljo3-surface);
    border: 2px solid var(--ljo3-menu-outline);
    border-radius: 0;
    box-shadow: none;

    color: var(--ljo3-text-strong);
    font-family: "Noto Sans", Arial, sans-serif;
    font-size: 13px;
    font-weight: 400;
    line-height: 1.35;
    text-decoration: none;

    transition:
        color .28s ease,
        border-color .28s ease;
}

.pkp_structure_sidebar .journal-sidebar-menu > .sidebar-section > a::before {
    content: "";
    position: absolute;
    z-index: -1;
    inset: 0;

    background: var(--ljo3-menu-fill);
    transform: scaleX(0);
    transform-origin: left center;

    transition: transform var(--ljo3-transition-menu);
}

.pkp_structure_sidebar .journal-sidebar-menu > .sidebar-section > a img {
    display: block;
    flex: 0 0 auto;
    width: 17px !important;
    height: 17px !important;
    max-width: 17px !important;
    max-height: 17px !important;
    margin: 0 8px 0 0 !important;
    padding: 0 !important;
    object-fit: contain;

    /* The supplied Iconify URLs request white icons. Render them dark
       in the normal white-button state, then white on hover below. */
    filter: brightness(0);
    transition:
        filter .28s ease,
        opacity .28s ease;
}

.pkp_structure_sidebar .journal-sidebar-menu > .sidebar-section > a:hover,
.pkp_structure_sidebar .journal-sidebar-menu > .sidebar-section > a:focus-visible {
    background: var(--ljo3-surface);
    border-color: var(--ljo3-menu-fill);
    color: #ffffff;
    text-decoration: none;
}

.pkp_structure_sidebar .journal-sidebar-menu > .sidebar-section > a:hover::before,
.pkp_structure_sidebar .journal-sidebar-menu > .sidebar-section > a:focus-visible::before {
    transform: scaleX(1);
}

.pkp_structure_sidebar .journal-sidebar-menu > .sidebar-section > a:hover img,
.pkp_structure_sidebar .journal-sidebar-menu > .sidebar-section > a:focus-visible img {
    opacity: 1;
    filter: brightness(0) invert(1);
}

.pkp_structure_sidebar .journal-sidebar-menu > .sidebar-section > a:focus-visible {
    outline: 2px solid var(--ljo3-accent-hover);
    outline-offset: 2px;
}

/* ==========================================================
   31. MAIN SIDEBAR MENU — HARD SPACING RESET
   The live Custom Block uses .sidebar-section as the actual row wrapper.
   These selectors intentionally do not depend on the outer
   .journal-sidebar-menu class so OJS/TinyMCE wrapper changes cannot
   preserve the old vertical gaps.
   ========================================================== */

/* Reset the actual row wrappers directly. */
.pkp_structure_sidebar .sidebar-section {
    margin: 0 !important;
    padding: 0 !important;
}

/* Also neutralize paragraph wrappers that OJS/TinyMCE may insert. */
.pkp_structure_sidebar .journal-sidebar-menu > p,
.pkp_structure_sidebar .sidebar-section > p {
    margin: 0 !important;
    padding: 0 !important;
}

/* Ignore editor-generated empty line breaks between menu rows. */
.pkp_structure_sidebar .journal-sidebar-menu > br,
.pkp_structure_sidebar .journal-sidebar-menu > p:empty,
.pkp_structure_sidebar .journal-sidebar-menu > p > br:only-child {
    display: none !important;
}

/* Links themselves must contribute no outer spacing. */
.pkp_structure_sidebar .sidebar-section a {
    margin-top: 0 !important;
    margin-bottom: 0 !important;
}

/* Consecutive rows overlap exactly by the 2 px button border so the
   two boxes share one separator line and appear vertically attached. */
.pkp_structure_sidebar .sidebar-section + .sidebar-section {
    margin-top: -2px !important;
}

/* If OJS inserts a paragraph wrapper around each section, remove its
   inter-row spacing as well. */
.pkp_structure_sidebar .journal-sidebar-menu > p + p {
    margin-top: -2px !important;
}

/* ==========================================================
   32. MAIN SIDEBAR MENU — STRUCTURAL FLATTENING
   Final compact-menu rule for the actual Custom Block markup.
   The .sidebar-section wrappers are removed from the layout box tree,
   so only the anchor buttons participate in the vertical stack.
   This prevents wrapper margins/gaps from separating menu buttons.
   ========================================================== */

.pkp_structure_sidebar .journal-sidebar-menu {
    display: flex !important;
    flex-direction: column !important;
    gap: 0 !important;
    row-gap: 0 !important;
    width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
}

/* Keep the HTML grouping semantics, but remove the wrapper box itself. */
.pkp_structure_sidebar .journal-sidebar-menu > .sidebar-section {
    display: contents !important;
    margin: 0 !important;
    padding: 0 !important;
}

/* Each button remains a normal flex row. The negative bottom margin
   overlaps the next button by exactly the 2 px border thickness. */
.pkp_structure_sidebar .journal-sidebar-menu > .sidebar-section > a {
    position: relative;
    z-index: 1;
    flex: 0 0 auto;
    width: 100% !important;
    margin: 0 0 -2px 0 !important;
    box-sizing: border-box;
}

/* Do not leave an overlap below the final menu item. */
.pkp_structure_sidebar .journal-sidebar-menu > .sidebar-section:last-child > a {
    margin-bottom: 0 !important;
}

/* Keep the hovered/focused button above the shared border. */
.pkp_structure_sidebar .journal-sidebar-menu > .sidebar-section > a:hover,
.pkp_structure_sidebar .journal-sidebar-menu > .sidebar-section > a:focus-visible {
    z-index: 4;
}