:root {
    --skls-primary: #0f766e;
    --skls-primary-dark: #115e59;
    --skls-primary-soft: #ecfdf8;
    --skls-navy: #0f172a;
    --skls-navy-2: #143b55;
    --skls-gold: #b98536;
    --skls-ink: #151515;
    --skls-text: #262626;
    --skls-muted: #666666;
    --skls-line: #1e1e1e;
    --skls-border: #d7d7d7;
    --skls-soft: #f7f7f7;
    --skls-white: #ffffff;
    --skls-serif: Georgia, "Times New Roman", serif;
    --skls-sans: Arial, Helvetica, sans-serif;
}

.skls-mdpi-page,
.skls-mdpi-page * {
    box-sizing: border-box;
}

.skls-mdpi-page {
    min-height: 100vh;
    padding: 22px 0 72px;
    color: var(--skls-text);
    font-family: var(--skls-serif);
    background: #ffffff;
}

.skls-mdpi-paper {
    width: min(1240px, calc(100% - 30px));
    margin: 0 auto;
    padding: 18px 34px 58px;
    background: #fff;
}

/* Journal masthead */
.skls-mdpi-brandbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 22px;
    min-height: 72px;
    padding: 0 0 17px;
    margin: 0 0 25px;
    border-bottom: 1.5px solid var(--skls-line);
}

.skls-mdpi-brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--skls-primary) !important;
    font-family: var(--skls-serif);
    font-size: 29px;
    font-style: italic;
    font-weight: 700;
    line-height: 1;
    text-decoration: none !important;
}

.skls-mdpi-brand img {
    display: block;
    width: 58px;
    height: 58px;
    object-fit: contain;
}

.skls-mdpi-publisher-mark {
    display: inline-grid;
    min-width: 76px;
    min-height: 48px;
    padding: 7px 11px;
    place-items: center;
    color: var(--skls-navy);
    font-family: var(--skls-sans);
    font-size: 18px;
    font-weight: 900;
    letter-spacing: .06em;
    text-align: center;
    text-transform: uppercase;
    border: 2px solid var(--skls-navy);
}

.skls-mdpi-status-row {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin: 0 0 12px;
    font-family: var(--skls-sans);
}

.skls-mdpi-status {
    display: inline-flex;
    align-items: center;
    min-height: 24px;
    padding: 4px 8px;
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    line-height: 1;
    background: var(--skls-primary);
}

.skls-mdpi-status.is-type {
    background: var(--skls-navy-2);
}

.skls-mdpi-article-type {
    margin: 0 0 7px;
    color: #333;
    font-size: 16px;
    font-style: italic;
}

.skls-mdpi-title {
    max-width: 1080px;
    margin: 0 0 17px;
    color: #111;
    font-family: var(--skls-serif);
    font-size: clamp(33px, 3.25vw, 45px);
    font-weight: 700;
    line-height: 1.13;
    letter-spacing: -.018em;
}

.skls-mdpi-authors {
    max-width: 1100px;
    margin: 0 0 18px;
    color: #181818;
    font-size: 16px;
    font-weight: 700;
    line-height: 1.6;
}

.skls-mdpi-authors a,
.skls-mdpi-authors .orcid {
    color: var(--skls-primary);
    text-decoration: none;
}

.skls-mdpi-authors sup {
    color: var(--skls-primary-dark);
    font-size: 9px;
}

.skls-mdpi-affiliations {
    max-width: 900px;
    margin: 0 0 23px 24.5%;
    color: #292929;
    font-size: 12.5px;
    line-height: 1.52;
}

.skls-mdpi-affiliation {
    display: grid;
    grid-template-columns: 25px minmax(0, 1fr);
    gap: 6px;
    margin: 0 0 4px;
}

/* MDPI-style front matter: left metadata rail + abstract */
.skls-mdpi-first-grid {
    display: grid;
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 34px;
    align-items: end;
}

.skls-mdpi-meta {
    align-self: end;
    padding-right: 16px;
    color: #333;
    font-size: 11.5px;
    line-height: 1.58;
}

.skls-mdpi-meta > div {
    margin: 0 0 4px;
}

.skls-mdpi-meta strong {
    color: #111;
}

.skls-mdpi-meta a {
    color: var(--skls-primary);
}

.skls-mdpi-update-badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 9px;
    margin: 0 0 13px;
    color: var(--skls-primary-dark);
    font-family: var(--skls-sans);
    font-size: 10.5px;
    font-weight: 800;
    background: var(--skls-primary-soft);
    border: 1px solid #a8dcd6;
}

.skls-mdpi-abstract {
    color: #1e1e1e;
    font-size: 15.5px;
    line-height: 1.6;
    text-align: justify;
}

.skls-mdpi-abstract h2,
.skls-mdpi-section h2,
.skls-mdpi-declarations h2,
.skls-mdpi-assets h2,
.skls-mdpi-references h2 {
    margin: 0 0 8px;
    color: #151515;
    font-family: var(--skls-serif);
    font-size: 19px;
    font-weight: 700;
    line-height: 1.3;
}

.skls-mdpi-abstract p {
    margin: 0 0 10px;
}

.skls-mdpi-keywords {
    padding: 0 0 17px;
    margin: 16px 0 0;
    font-size: 13.5px;
    line-height: 1.52;
    border-bottom: 1.4px solid var(--skls-line);
}

.skls-mdpi-keywords strong {
    color: #111;
}

.skls-mdpi-document-line {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    padding: 10px 0 9px;
    margin: 26px 0 22px;
    color: #333;
    font-size: 11.5px;
    font-style: italic;
    border-top: 1px solid var(--skls-line);
    border-bottom: 1px solid var(--skls-line);
}

.skls-mdpi-document-line a {
    color: var(--skls-primary);
    font-style: normal;
    overflow-wrap: anywhere;
    text-decoration: none;
}

/* Web article + article menu */
.skls-mdpi-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 238px;
    gap: 38px;
    align-items: start;
}

.skls-mdpi-content {
    min-width: 0;
    color: #232323;
    font-size: 16px;
    line-height: 1.68;
    text-align: justify;
}

.skls-mdpi-content > :first-child {
    margin-top: 0;
}

.skls-mdpi-content h1 {
    display: none;
}

.skls-mdpi-content h2 {
    margin: 28px 0 9px;
    color: #171717;
    font-family: var(--skls-serif);
    font-size: 21px;
    font-weight: 700;
    line-height: 1.3;
}

.skls-mdpi-content h3 {
    margin: 21px 0 7px;
    color: #202020;
    font-family: var(--skls-serif);
    font-size: 17px;
    font-style: italic;
    font-weight: 400;
    line-height: 1.35;
}

.skls-mdpi-content h4 {
    margin: 17px 0 7px;
    font-size: 15px;
    font-weight: 700;
}

.skls-mdpi-content p {
    margin: 0 0 12px;
}

.skls-mdpi-content a {
    color: var(--skls-primary);
}

.skls-mdpi-content ul,
.skls-mdpi-content ol {
    padding-left: 23px;
    margin: 0 0 14px;
}

.skls-mdpi-sidebar {
    position: sticky;
    top: 96px;
    font-family: var(--skls-sans);
}

.skls-mdpi-sidebox {
    padding: 0 0 15px;
    margin: 0 0 19px;
    background: #fff;
    border: 1px solid var(--skls-border);
    border-top: 3px solid var(--skls-primary);
}

.skls-mdpi-sidebox h3 {
    padding: 10px 12px 9px;
    margin: 0;
    color: var(--skls-navy);
    font-family: var(--skls-serif);
    font-size: 17px;
    line-height: 1.3;
    border-bottom: 1px solid var(--skls-border);
}

.skls-mdpi-sidebox > div,
.skls-mdpi-sidebox > p,
.skls-mdpi-sidebox > a:not(.skls-mdpi-button),
.skls-mdpi-sidebox nav {
    margin-right: 12px;
    margin-left: 12px;
}

.skls-mdpi-sidebox > div {
    padding: 7px 0;
    color: #3f3f3f;
    font-size: 11.5px;
    line-height: 1.45;
    border-bottom: 1px solid #eeeeee;
}

.skls-mdpi-sidebox > div:last-child {
    border-bottom: 0;
}

.skls-mdpi-button,
.skls-mdpi-button:link,
.skls-mdpi-button:visited,
.skls-mdpi-button:hover,
.skls-mdpi-button:focus,
.skls-mdpi-button:active {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 8px 12px;
    margin: 12px;
    color: #ffffff !important;
    font-size: 12px;
    font-weight: 800;
    text-decoration: none !important;
    background: var(--skls-primary);
    border: 1px solid var(--skls-primary);
}

.skls-mdpi-button:hover,
.skls-mdpi-button:focus-visible {
    background: var(--skls-primary-dark);
    border-color: var(--skls-primary-dark);
}

.skls-mdpi-menu {
    display: grid;
    padding: 7px 0 0;
}

.skls-mdpi-menu a {
    display: block;
    padding: 7px 0;
    color: #303030;
    font-size: 11.5px;
    font-weight: 700;
    text-decoration: none;
    border-bottom: 1px solid #eeeeee;
}

.skls-mdpi-menu a:hover,
.skls-mdpi-menu a:focus-visible {
    color: var(--skls-primary);
}

/* Figures */
.skls-mdpi-figure,
.skls-mdpi-table-asset,
.skls-mdpi-supplementary-item {
    margin: 27px 0;
    break-inside: avoid;
}

.skls-mdpi-figure img {
    display: block;
    max-width: 100%;
    max-height: 760px;
    margin: 0 auto;
}

.skls-mdpi-caption,
.skls-mdpi-table-caption {
    margin: 8px 0 0;
    color: #202020;
    font-size: 13px;
    line-height: 1.5;
    text-align: left;
}

.skls-mdpi-caption strong,
.skls-mdpi-table-caption strong {
    color: #111;
}

/* Tables: caption above, only table scrolls, notes stay full width */
.skls-mdpi-table-caption {
    margin: 0 0 7px;
}

.skls-mdpi-table-caption .skls-rendered-docx,
.skls-mdpi-table-notes .skls-rendered-docx {
    width: 100% !important;
    overflow: visible !important;
}

.skls-mdpi-table-scroll {
    display: block;
    width: 100%;
    max-width: 100%;
    overflow-x: auto;
    overflow-y: visible;
    border-top: 1.1px solid #111;
    border-bottom: 1.1px solid #111;
    -webkit-overflow-scrolling: touch;
}

.skls-mdpi-rendered-table,
.skls-mdpi-table-scroll table {
    width: 100% !important;
    min-width: 680px;
    height: auto !important;
    margin: 0;
    color: #161616;
    font-family: var(--skls-serif);
    font-size: 11.5px;
    line-height: 1.25;
    table-layout: auto !important;
    border-collapse: collapse !important;
}

.skls-mdpi-rendered-table thead,
.skls-mdpi-rendered-table tbody,
.skls-mdpi-rendered-table tfoot,
.skls-mdpi-rendered-table tr,
.skls-mdpi-rendered-table th,
.skls-mdpi-rendered-table td,
.skls-mdpi-table-scroll thead,
.skls-mdpi-table-scroll tbody,
.skls-mdpi-table-scroll tfoot,
.skls-mdpi-table-scroll tr,
.skls-mdpi-table-scroll th,
.skls-mdpi-table-scroll td {
    height: auto !important;
    max-height: none !important;
    overflow: visible !important;
    clip: auto !important;
    white-space: normal !important;
    text-overflow: clip !important;
}

.skls-mdpi-rendered-table th,
.skls-mdpi-rendered-table td,
.skls-mdpi-table-scroll th,
.skls-mdpi-table-scroll td {
    padding: 5px 7px !important;
    vertical-align: top;
    border: 0 !important;
    border-bottom: 1px solid #d4d4d4 !important;
}

.skls-mdpi-rendered-table th,
.skls-mdpi-table-scroll th {
    color: #111;
    font-weight: 700;
    background: #f5f5f5 !important;
    border-bottom: 1px solid #111 !important;
}

.skls-mdpi-table-notes {
    width: 100%;
    margin: 7px 0 0;
    color: #333;
    font-size: 11px;
    line-height: 1.42;
    text-align: left;
}

.skls-mdpi-table-caption *,
.skls-mdpi-table-notes * {
    max-width: 100% !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
    text-indent: 0 !important;
    transform: none !important;
    overflow: visible !important;
    white-space: normal !important;
}

.skls-mdpi-declarations,
.skls-mdpi-references,
.skls-mdpi-assets {
    margin-top: 31px;
}

.skls-mdpi-declaration {
    margin: 0 0 9px;
    font-size: 14px;
    line-height: 1.52;
}

.skls-mdpi-references ol {
    padding-left: 21px;
    margin: 0;
}

.skls-mdpi-references li {
    margin: 0 0 7px;
    color: #252525;
    font-size: 12.5px;
    line-height: 1.42;
}

/* PDF rendering */
.skls-mdpi-pdf {
    --skls-serif: "DejaVu Serif", serif;
    --skls-sans: "DejaVu Sans", sans-serif;
    padding: 0;
    color: #111;
    font-family: var(--skls-serif);
    background: #fff;
}

.skls-mdpi-pdf .skls-mdpi-paper {
    width: auto;
    padding: 0;
}

.skls-mdpi-pdf .skls-mdpi-brandbar {
    min-height: 50px;
    margin-bottom: 18px;
    padding-bottom: 10px;
}

.skls-mdpi-pdf .skls-mdpi-brand {
    font-size: 17px;
}

.skls-mdpi-pdf .skls-mdpi-brand img {
    width: 39px;
    height: 39px;
}

.skls-mdpi-pdf .skls-mdpi-publisher-mark {
    min-width: 55px;
    min-height: 34px;
    padding: 4px 6px;
    font-size: 11px;
}

.skls-mdpi-pdf .skls-mdpi-status-row {
    margin-bottom: 8px;
}

.skls-mdpi-pdf .skls-mdpi-status {
    min-height: 16px;
    padding: 3px 5px;
    font-size: 6.5px;
}

.skls-mdpi-pdf .skls-mdpi-article-type {
    margin-bottom: 4px;
    font-size: 9.2px;
}

.skls-mdpi-pdf .skls-mdpi-title {
    margin-bottom: 10px;
    font-size: 20px;
    line-height: 1.14;
}

.skls-mdpi-pdf .skls-mdpi-authors {
    margin-bottom: 10px;
    font-size: 9.4px;
    line-height: 1.42;
}

.skls-mdpi-pdf .skls-mdpi-affiliations {
    margin: 0 0 13px 24.5%;
    font-size: 7.2px;
    line-height: 1.35;
}

.skls-mdpi-pdf .skls-mdpi-first-grid {
    display: table;
    width: 100%;
    table-layout: fixed;
}

.skls-mdpi-pdf .skls-mdpi-meta,
.skls-mdpi-pdf .skls-mdpi-abstract {
    display: table-cell;
    vertical-align: bottom;
}

.skls-mdpi-pdf .skls-mdpi-meta {
    width: 23.5%;
    padding-right: 12px;
    font-size: 6.7px;
    line-height: 1.42;
}

.skls-mdpi-pdf .skls-mdpi-update-badge {
    padding: 4px 5px;
    margin-bottom: 7px;
    font-size: 6.2px;
}

.skls-mdpi-pdf .skls-mdpi-abstract {
    width: 76.5%;
    font-size: 8.4px;
    line-height: 1.42;
}

.skls-mdpi-pdf .skls-mdpi-abstract h2 {
    margin-bottom: 4px;
    font-size: 9.7px;
}

.skls-mdpi-pdf .skls-mdpi-keywords {
    padding-bottom: 8px;
    margin-top: 8px;
    font-size: 7.4px;
}

.skls-mdpi-pdf .skls-mdpi-document-line {
    padding: 6px 0;
    margin: 13px 0 12px;
    font-size: 6.8px;
}

.skls-mdpi-pdf .skls-mdpi-layout {
    display: block;
}

.skls-mdpi-pdf .skls-mdpi-sidebar {
    display: none;
}

/* Persistent blank information column on body pages */
.skls-mdpi-pdf .skls-mdpi-content,
.skls-mdpi-pdf .skls-mdpi-declarations,
.skls-mdpi-pdf .skls-mdpi-references {
    width: 76.5%;
    margin-left: 23.5%;
}

.skls-mdpi-pdf .skls-mdpi-content {
    font-size: 8.5px;
    line-height: 1.46;
    text-align: justify;
}

.skls-mdpi-pdf .skls-mdpi-content h2 {
    margin: 12px 0 4px;
    font-size: 10.2px;
}

.skls-mdpi-pdf .skls-mdpi-content h3 {
    margin: 8px 0 3px;
    font-size: 8.8px;
}

/* Wide visual material extends into the blank left column, as in journal PDFs. */
.skls-mdpi-pdf .skls-mdpi-figure,
.skls-mdpi-pdf .skls-mdpi-table-asset,
.skls-mdpi-pdf .skls-mdpi-assets {
    width: 100%;
    margin-left: 0;
}

.skls-mdpi-pdf .skls-mdpi-figure img {
    max-height: 500px;
}

.skls-mdpi-pdf .skls-mdpi-caption,
.skls-mdpi-pdf .skls-mdpi-table-caption {
    font-size: 7.1px;
    line-height: 1.34;
}

.skls-mdpi-pdf .skls-mdpi-table-scroll {
    overflow: visible;
}

.skls-mdpi-pdf .skls-mdpi-rendered-table,
.skls-mdpi-pdf .skls-mdpi-table-scroll table {
    min-width: 0;
    font-size: 6.1px;
    line-height: 1.12;
}

.skls-mdpi-pdf .skls-mdpi-rendered-table th,
.skls-mdpi-pdf .skls-mdpi-rendered-table td,
.skls-mdpi-pdf .skls-mdpi-table-scroll th,
.skls-mdpi-pdf .skls-mdpi-table-scroll td {
    padding: 3px 4px !important;
}

.skls-mdpi-pdf .skls-mdpi-table-notes,
.skls-mdpi-pdf .skls-mdpi-references li,
.skls-mdpi-pdf .skls-mdpi-declaration {
    font-size: 6.5px;
    line-height: 1.32;
}

@page {
    margin: 15mm 14mm 18mm 14mm;
}

@media (max-width: 920px) {
    .skls-mdpi-paper {
        width: min(100% - 18px, 1240px);
        padding: 18px 18px 42px;
    }

    .skls-mdpi-affiliations {
        margin-left: 0;
    }

    .skls-mdpi-first-grid,
    .skls-mdpi-layout {
        grid-template-columns: 1fr;
    }

    .skls-mdpi-meta {
        order: 2;
        padding: 13px 0 0;
        border-top: 1px solid var(--skls-border);
    }

    .skls-mdpi-sidebar {
        position: static;
    }
}

@media (max-width: 640px) {
    .skls-mdpi-page {
        padding-top: 10px;
    }

    .skls-mdpi-brandbar {
        min-height: 58px;
        margin-bottom: 18px;
    }

    .skls-mdpi-brand {
        font-size: 21px;
    }

    .skls-mdpi-brand img {
        width: 44px;
        height: 44px;
    }

    .skls-mdpi-publisher-mark {
        min-width: 58px;
        min-height: 38px;
        font-size: 12px;
    }

    .skls-mdpi-title {
        font-size: 29px;
    }

    .skls-mdpi-authors {
        font-size: 14px;
    }

    .skls-mdpi-abstract,
    .skls-mdpi-content {
        font-size: 15px;
        text-align: left;
    }

    .skls-mdpi-document-line {
        display: block;
    }

    .skls-mdpi-document-line > * {
        display: block;
        margin-bottom: 5px;
    }
}

@media print {
    .skls-mdpi-page {
        padding: 0;
        background: #fff;
    }

    .skls-mdpi-paper {
        width: 100%;
        padding: 0;
    }

    .skls-mdpi-sidebar {
        display: none;
    }

    .skls-mdpi-layout {
        display: block;
    }
}

/* ========================================================================
   SKLS interactive article workspace — MDPI-inspired web controls
   Root colors remain SKLS teal/navy/gold.
   ======================================================================== */

.skls-mdpi-web-grid {
    display: grid;
    grid-template-columns: 250px minmax(0, 1fr) 64px;
    gap: 22px;
    align-items: start;
}

.skls-mdpi-center-column {
    min-width: 0;
}

.skls-mdpi-left-rail {
    position: sticky;
    top: 96px;
    min-width: 0;
    font-family: var(--skls-sans);
}

.skls-mdpi-journal-panel,
.skls-mdpi-left-section {
    padding: 18px;
    background: #fff;
    border: 1px solid var(--skls-border);
}

.skls-mdpi-left-section {
    margin-top: 14px;
}

.skls-mdpi-journal-lockup {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    color: var(--skls-primary);
    text-decoration: none;
}

.skls-mdpi-journal-lockup img {
    width: 46px;
    height: 46px;
    object-fit: contain;
}

.skls-mdpi-journal-lockup strong {
    font-family: var(--skls-serif);
    font-size: 17px;
    font-style: italic;
    line-height: 1.25;
}

.skls-mdpi-outline-action,
.skls-mdpi-primary-action {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    margin-top: 9px;
    padding: 8px 10px;
    border: 1px solid var(--skls-navy-2);
    color: var(--skls-navy-2);
    font-size: 12px;
    font-weight: 700;
    text-align: center;
    text-decoration: none;
}

.skls-mdpi-primary-action {
    color: #fff;
    background: var(--skls-primary);
    border-color: var(--skls-primary);
}

.skls-mdpi-outline-action:hover,
.skls-mdpi-outline-action:focus-visible {
    color: #fff;
    background: var(--skls-navy-2);
}

.skls-mdpi-primary-action:hover,
.skls-mdpi-primary-action:focus-visible {
    color: #fff;
    background: var(--skls-primary-dark);
}

.skls-mdpi-left-section h2 {
    margin: 0 0 14px;
    color: #111827;
    font-family: var(--skls-sans);
    font-size: 22px;
    line-height: 1.2;
}

.skls-mdpi-left-section details {
    border-top: 1px solid var(--skls-border);
}

.skls-mdpi-left-section details:first-of-type {
    border-top: 0;
}

.skls-mdpi-left-section summary {
    position: relative;
    padding: 14px 22px 14px 0;
    color: #1f2937;
    cursor: pointer;
    font-size: 13px;
    font-weight: 700;
    list-style: none;
}

.skls-mdpi-left-section summary::-webkit-details-marker {
    display: none;
}

.skls-mdpi-left-section summary::after {
    content: "+";
    position: absolute;
    top: 13px;
    right: 2px;
    color: var(--skls-muted);
    font-size: 17px;
    font-weight: 400;
}

.skls-mdpi-left-section details[open] summary::after {
    content: "−";
}

.skls-mdpi-editor-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 2px 0 15px;
    color: var(--skls-navy);
    font-size: 12px;
    font-weight: 700;
}

.skls-mdpi-editor-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    flex: 0 0 42px;
    color: #fff;
    background: var(--skls-primary);
    border-radius: 50%;
    font-size: 12px;
    letter-spacing: .04em;
}

.skls-mdpi-related-list,
.skls-mdpi-generated-toc {
    display: grid;
    gap: 8px;
    padding: 0 0 14px;
}

.skls-mdpi-related-list a,
.skls-mdpi-generated-toc a {
    color: var(--skls-primary-dark);
    font-size: 12px;
    line-height: 1.4;
    text-decoration: none;
}

.skls-mdpi-related-list a:hover,
.skls-mdpi-generated-toc a:hover {
    text-decoration: underline;
}

.skls-mdpi-generated-toc a[data-level="3"] {
    padding-left: 12px;
    color: var(--skls-text);
}

.skls-mdpi-article-header {
    padding: 18px 0 4px;
}

.skls-mdpi-citation-line,
.skls-mdpi-history-line {
    margin-top: 14px;
    color: #1f2937;
    font-family: var(--skls-sans);
    font-size: 12px;
    line-height: 1.55;
}

.skls-mdpi-citation-line a {
    color: var(--skls-primary);
}

.skls-mdpi-history-line {
    margin-top: 8px;
    font-weight: 500;
}

.skls-mdpi-actionbar {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin: 20px 0 28px;
}

.skls-mdpi-download {
    position: relative;
}

.skls-mdpi-action-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 38px;
    padding: 8px 18px;
    color: #fff;
    background: var(--skls-navy-2);
    border: 1px solid var(--skls-navy-2);
    border-radius: 2px;
    cursor: pointer;
    font-family: var(--skls-sans);
    font-size: 13px;
    font-weight: 800;
    line-height: 1;
}

.skls-mdpi-action-button:hover,
.skls-mdpi-action-button:focus-visible {
    color: #fff;
    background: var(--skls-primary-dark);
    border-color: var(--skls-primary-dark);
}

.skls-mdpi-action-button:disabled {
    cursor: not-allowed;
    opacity: .45;
}

.skls-mdpi-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    color: var(--skls-navy);
    background: #fff;
    border-radius: 999px;
    font-size: 10px;
}

.skls-mdpi-download-menu {
    position: absolute;
    z-index: 35;
    top: calc(100% + 4px);
    left: 0;
    width: 210px;
    padding: 7px 0;
    background: #fff;
    border: 1px solid #cfd6de;
    box-shadow: 0 12px 26px rgba(15, 23, 42, .14);
}

.skls-mdpi-download-menu a,
.skls-mdpi-download-menu span {
    display: block;
    padding: 10px 16px;
    color: var(--skls-navy-2);
    font-family: var(--skls-sans);
    font-size: 13px;
    text-decoration: none;
}

.skls-mdpi-download-menu a:hover {
    color: var(--skls-primary-dark);
    background: var(--skls-primary-soft);
}

.skls-mdpi-abstract.is-web {
    width: 100%;
    padding: 0;
    margin: 0 0 28px;
    border: 0;
    font-size: 14px;
    line-height: 1.7;
}

.skls-mdpi-abstract.is-web h2 {
    margin: 0 0 10px;
    color: var(--skls-primary-dark);
    font-family: var(--skls-sans);
    font-size: 16px;
}

.skls-mdpi-utility-rail {
    position: sticky;
    top: 96px;
    display: grid;
    align-self: start;
    background: #fff;
    border: 1px solid var(--skls-border);
}

.skls-mdpi-utility-rail button,
.skls-mdpi-utility-rail a {
    display: grid;
    place-items: center;
    min-height: 72px;
    padding: 8px 4px;
    color: var(--skls-navy);
    background: #fff;
    border: 0;
    border-bottom: 1px solid var(--skls-border-soft);
    cursor: pointer;
    font-family: var(--skls-sans);
    text-decoration: none;
}

.skls-mdpi-utility-rail button:last-child,
.skls-mdpi-utility-rail a:last-child {
    border-bottom: 0;
}

.skls-mdpi-utility-rail span {
    font-size: 23px;
    font-weight: 800;
}

.skls-mdpi-utility-rail small {
    margin-top: 4px;
    font-size: 10px;
}

.skls-mdpi-utility-rail button:hover,
.skls-mdpi-utility-rail a:hover {
    color: var(--skls-primary-dark);
    background: var(--skls-primary-soft);
}

.skls-mdpi-figure-button {
    display: block;
    width: 100%;
    padding: 0;
    background: transparent;
    border: 0;
    cursor: zoom-in;
}

.skls-mdpi-modal[hidden] {
    display: none !important;
}

.skls-mdpi-modal {
    position: fixed;
    z-index: 10000;
    inset: 0;
    display: grid;
    place-items: center;
    padding: 28px;
    font-family: var(--skls-sans);
}

.skls-mdpi-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, .62);
}

.skls-mdpi-modal-dialog {
    position: relative;
    z-index: 1;
    width: min(720px, 100%);
    max-height: calc(100vh - 56px);
    overflow: auto;
    padding: 34px 40px;
    background: #fff;
    box-shadow: 0 25px 80px rgba(15, 23, 42, .25);
}

.skls-mdpi-modal-dialog.is-wide {
    width: min(1120px, 100%);
}

.skls-mdpi-modal-dialog > header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 24px;
}

.skls-mdpi-modal-dialog > header h2 {
    margin: 0;
    color: #252525;
    font-size: 29px;
    line-height: 1.2;
}

.skls-mdpi-modal-dialog > header button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    padding: 0;
    color: #252525;
    background: transparent;
    border: 0;
    cursor: pointer;
    font-size: 31px;
    line-height: 1;
}

.skls-mdpi-figure-browser {
    display: grid;
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 24px;
}

.skls-mdpi-figure-thumbs {
    display: grid;
    align-content: start;
    gap: 10px;
    max-height: 65vh;
    overflow: auto;
}

.skls-mdpi-figure-thumbs button {
    display: grid;
    grid-template-columns: 66px 1fr;
    gap: 10px;
    align-items: center;
    padding: 8px;
    color: var(--skls-text);
    background: #fff;
    border: 1px solid var(--skls-border);
    cursor: pointer;
    text-align: left;
}

.skls-mdpi-figure-thumbs button.is-active {
    border-color: var(--skls-primary);
    box-shadow: inset 3px 0 0 var(--skls-primary);
}

.skls-mdpi-figure-thumbs img {
    width: 66px;
    height: 52px;
    object-fit: contain;
}

.skls-mdpi-figure-thumbs span {
    font-size: 11px;
    line-height: 1.35;
}

.skls-mdpi-figure-stage {
    min-width: 0;
}

.skls-mdpi-figure-stage figure {
    margin: 0;
}

.skls-mdpi-figure-stage img {
    display: block;
    max-width: 100%;
    max-height: 65vh;
    margin: 0 auto;
    object-fit: contain;
}

.skls-mdpi-figure-stage figcaption {
    margin-top: 14px;
    color: #333;
    font-family: var(--skls-serif);
    font-size: 13px;
    line-height: 1.55;
}

.skls-mdpi-version-list {
    display: grid;
    gap: 14px;
}

.skls-mdpi-version-list article {
    padding: 16px 18px;
    background: #f8fafc;
    border-left: 4px solid var(--skls-primary);
}

.skls-mdpi-version-list article > div {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.skls-mdpi-version-list span {
    padding: 3px 7px;
    color: var(--skls-muted);
    background: #e8edf1;
    border-radius: 999px;
    font-size: 10px;
    font-weight: 800;
}

.skls-mdpi-version-list span.is-current {
    color: var(--skls-primary-dark);
    background: var(--skls-primary-soft);
}

.skls-mdpi-version-list time {
    display: block;
    margin-top: 7px;
    color: var(--skls-muted);
    font-size: 11px;
}

.skls-mdpi-version-list p {
    margin: 10px 0 0;
    color: var(--skls-text);
    font-size: 13px;
    line-height: 1.55;
}

.skls-mdpi-share-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 22px;
}

.skls-mdpi-share-buttons a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 8px 14px;
    color: #fff;
    background: var(--skls-navy-2);
    text-decoration: none;
}

.skls-mdpi-copy-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 110px;
    gap: 12px;
}

.skls-mdpi-copy-row input {
    min-width: 0;
    height: 42px;
    padding: 0 12px;
    background: #f3f4f6;
    border: 1px solid var(--skls-border);
}

.skls-mdpi-copy-row button,
.skls-mdpi-citation-option button {
    min-height: 40px;
    padding: 8px 14px;
    color: #fff;
    background: var(--skls-primary);
    border: 1px solid var(--skls-primary);
    cursor: pointer;
    font-weight: 800;
}

.skls-mdpi-citation-option {
    padding: 15px 0;
    border-top: 1px solid var(--skls-border);
}

.skls-mdpi-citation-option:first-of-type {
    border-top: 0;
}

.skls-mdpi-citation-option p {
    margin: 7px 0 10px;
    color: #303030;
    font-family: Arial, sans-serif;
    font-size: 13px;
    line-height: 1.55;
}

body.skls-modal-open {
    overflow: hidden;
}

@media (max-width: 1180px) {
    .skls-mdpi-web-grid {
        grid-template-columns: 220px minmax(0, 1fr);
    }

    .skls-mdpi-utility-rail {
        position: fixed;
        z-index: 80;
        right: 10px;
        bottom: 20px;
        top: auto;
        grid-auto-flow: column;
    }

    .skls-mdpi-utility-rail button,
    .skls-mdpi-utility-rail a {
        min-width: 62px;
        min-height: 58px;
        border-right: 1px solid var(--skls-border-soft);
        border-bottom: 0;
    }
}

@media (max-width: 900px) {
    .skls-mdpi-web-grid {
        grid-template-columns: 1fr;
    }

    .skls-mdpi-left-rail {
        position: static;
        order: 2;
    }

    .skls-mdpi-center-column {
        order: 1;
    }

    .skls-mdpi-left-section details:not([open]) > *:not(summary) {
        display: none;
    }
}

@media (max-width: 680px) {
    .skls-mdpi-actionbar,
    .skls-mdpi-action-button,
    .skls-mdpi-download {
        width: 100%;
    }

    .skls-mdpi-download-menu {
        width: 100%;
    }

    .skls-mdpi-modal {
        padding: 12px;
    }

    .skls-mdpi-modal-dialog {
        padding: 24px 20px;
        max-height: calc(100vh - 24px);
    }

    .skls-mdpi-figure-browser {
        grid-template-columns: 1fr;
    }

    .skls-mdpi-figure-thumbs {
        grid-auto-flow: column;
        grid-auto-columns: 150px;
        overflow-x: auto;
        overflow-y: hidden;
    }

    .skls-mdpi-copy-row {
        grid-template-columns: 1fr;
    }
}

@media print {
    .skls-mdpi-left-rail,
    .skls-mdpi-utility-rail,
    .skls-mdpi-actionbar,
    .skls-mdpi-modal {
        display: none !important;
    }

    .skls-mdpi-web-grid {
        display: block;
    }
}

.skls-mdpi-brand img {
    display: block;
    width: 58px;
    height: 58px;
    max-width: 58px;
    object-fit: contain;
}

.skls-mdpi-journal-lockup img {
    display: block;
    width: 58px;
    height: 58px;
    max-width: 58px;
    object-fit: contain;
    flex: 0 0 58px;
}

.skls-mdpi-brandbar img,
.skls-mdpi-left-rail img {
    object-fit: contain;
}