:root {
    --header-height: 92px;
    --footer-height: 62px;
    --bg: #f3f5f7;
    --surface: #ffffff;
    --border: #d9dde2;
    --text: #1f2328;
    --muted: #667085;
    --link: #005ea8;
    --link-hover: #003f73;
    --soft: #eef2f5;
    --shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    min-height: 100%;
    font-family: Arial, Helvetica, sans-serif;
    color: var(--text);
    background: var(--bg);
}

body {
    overflow: hidden;
}

a {
    color: var(--link);
    text-decoration: none;
}

a:hover {
    color: var(--link-hover);
    text-decoration: underline;
}

/* =========================================================
   HEADER
   ========================================================= */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    z-index: 1000;

    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;

    padding: 12px 30px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.header-left,
.header-right {
    display: flex;
    align-items: center;
}

.header-left {
    justify-content: flex-start;
}

.header-right {
    justify-content: flex-end;
}

.header-center {
    text-align: center;
}

.header-title {
    color: var(--text);
    font-size: 30px;
    font-weight: 700;
    white-space: nowrap;
    text-decoration: none;
}

.header-title:hover {
    color: var(--text);
    text-decoration: none;
}

.logo {
    max-height: 60px;
    max-width: 220px;
    object-fit: contain;
}

/* =========================================================
   CONTENT
   ========================================================= */

main {
    position: fixed;
    top: var(--header-height);
    bottom: var(--footer-height);
    left: 0;
    right: 0;

    overflow-y: auto;
    padding: 38px 28px 48px;
}

.content-container {
    width: min(1120px, 100%);
    margin: 0 auto;
}

.page-title {
    margin: 0 0 10px;
    font-size: 34px;
    font-weight: 700;
}

.page-intro {
    margin: 0 0 30px;
    color: var(--muted);
    line-height: 1.55;
}

.home-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
    margin-top: 30px;
}

.home-card,
.content-card,
.download-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
}

.home-card {
    padding: 28px;
}

.home-card h2,
.download-card h2 {
    margin: 0 0 10px;
}

.home-card p {
    color: #39424e;
    line-height: 1.55;
}

.primary-link {
    display: inline-block;
    margin-top: 8px;
    font-size: 16px;
    font-weight: 700;
}

.download-card {
    margin-bottom: 18px;
    padding: 22px 24px;
}

.download-card h2 {
    font-size: 24px;
}

.item-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 8px 0 12px;
}

.badge {
    display: inline-block;
    padding: 4px 9px;
    border-radius: 999px;
    background: var(--soft);
    color: #374151;
    font-size: 13px;
    font-weight: 700;
}

.item-description {
    margin: 0 0 12px;
    line-height: 1.5;
    color: #39424e;
}

.download-link {
    font-size: 16px;
    font-weight: 700;
}

.link-not-available {
    color: var(--muted);
    font-style: italic;
}

.content-card {
    padding: 28px;
}

.content-card h2:first-child {
    margin-top: 0;
}

.content-card h2 {
    margin-top: 28px;
    margin-bottom: 8px;
    font-size: 22px;
}

.content-card p {
    line-height: 1.65;
}

.back-link {
    display: inline-block;
    margin-bottom: 24px;
    font-weight: 700;
}

.schema-table-wrapper {
    width: 100%;
    overflow-x: auto;
}

.schema-table {
    width: 100%;
    min-width: 760px;
    border-collapse: collapse;
    margin-top: 22px;
    background: var(--surface);
}

.schema-table th,
.schema-table td {
    padding: 12px 14px;
    border: 1px solid var(--border);
    text-align: left;
    vertical-align: top;
}

.schema-table th {
    background: var(--soft);
    font-weight: 700;
}

.schema-table tr:hover td {
    background: #fafbfc;
}

.error-box {
    padding: 16px 18px;
    border: 1px solid #d9534f;
    background: #fff7f7;
    border-radius: 6px;
    color: #8a1f1f;
}

/* =========================================================
   FOOTER
   ========================================================= */

.site-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--footer-height);
    z-index: 1000;

    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;

    padding: 0 30px;
    background: var(--surface);
    border-top: 1px solid var(--border);
    font-size: 14px;
}

.footer-left {
    text-align: left;
}

.footer-center {
    display: flex;
    gap: 24px;
    justify-content: center;
}

.footer-right {
    text-align: right;
}

/* =========================================================
   RESPONSIVE
   ========================================================= */

@media (max-width: 760px) {
    :root {
        --header-height: 76px;
        --footer-height: 98px;
    }

    .site-header {
        padding: 8px 14px;
    }

    .logo {
        max-height: 44px;
        max-width: 120px;
    }

    .header-title {
        font-size: 20px;
    }

    main {
        padding: 24px 16px 34px;
    }

    .page-title {
        font-size: 28px;
    }

    .home-grid {
        grid-template-columns: 1fr;
    }

    .download-card h2 {
        font-size: 21px;
    }

    .site-footer {
        grid-template-columns: 1fr;
        justify-items: center;
        gap: 3px;
        padding: 8px 12px;
        text-align: center;
    }

    .footer-left,
    .footer-right {
        text-align: center;
    }
}


/* =========================================================
   PACKAGES
   ========================================================= */

.package-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.package-card {
    padding: 24px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
}

.package-card h2 {
    margin: 0 0 8px;
    font-size: 23px;
}

.package-head {
    margin-bottom: 20px;
}

.package-head h2 {
    margin: 0 0 8px;
}

.package-section {
    margin-bottom: 14px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
}

.package-section summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 16px 18px;
    background: var(--soft);
    cursor: pointer;
    font-size: 17px;
    font-weight: 700;
}

.section-count {
    color: var(--muted);
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
}

.package-file-list {
    padding: 0 18px;
}

.package-file {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 13px 0;
    border-bottom: 1px solid var(--border);
}

.package-file:last-child {
    border-bottom: 0;
}

.package-file-main {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
}

.file-type {
    flex: 0 0 auto;
    min-width: 48px;
    padding: 4px 7px;
    border-radius: 4px;
    background: var(--soft);
    color: #374151;
    text-align: center;
    font-size: 11px;
    font-weight: 700;
}

.package-file-name {
    overflow-wrap: anywhere;
    font-weight: 600;
}

.package-file-meta {
    margin-top: 3px;
    color: var(--muted);
    font-size: 12px;
}

.package-file-actions {
    flex: 0 0 auto;
    font-weight: 700;
}

.package-empty {
    padding: 15px 0;
    color: var(--muted);
    font-style: italic;
}

@media (max-width: 900px) {
    .home-grid,
    .package-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .package-file {
        align-items: flex-start;
        flex-direction: column;
    }

    .package-file-actions {
        padding-left: 60px;
    }
}

.header-right-content{display:flex;align-items:center;gap:18px}.language-switch{display:flex;align-items:center;gap:5px;font-size:13px}.language-switch button{border:0;background:transparent;color:var(--link);font-weight:700;cursor:pointer;padding:4px}.language-switch button.active{color:var(--text);text-decoration:underline}
.modal{display:none;position:fixed;z-index:2000;inset:0;background:rgba(0,0,0,.45);align-items:center;justify-content:center;padding:24px}.modal.open{display:flex}.modal-box{position:relative;width:min(760px,100%);max-height:80vh;overflow:auto;background:#fff;border-radius:8px;padding:30px;box-shadow:0 12px 40px rgba(0,0,0,.25)}.modal-x{position:absolute;right:12px;top:8px;border:0;background:transparent;font-size:28px;cursor:pointer}.modal-close{float:right;margin-top:20px;padding:8px 16px;cursor:pointer}

/* Package-Unterordner */
.package-subfolders{margin:12px 0 12px 24px}
.package-subfolders .package-section{margin-bottom:10px}
.package-subfolders .package-section summary{padding:12px 14px;font-size:15px;background:#f7f8fa}
.package-level-2,.package-level-3,.package-level-4{border-left:3px solid var(--border)}
@media(max-width:700px){.package-subfolders{margin-left:10px}}


/* =========================================================
   VALIDATOR DOWNLOAD FILTERS
   ========================================================= */

.validator-filter-panel {
    display: grid;
    grid-template-columns: repeat(3, minmax(160px, 1fr)) auto;
    gap: 16px;
    align-items: end;

    margin: 0 0 26px;
    padding: 18px 20px;

    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
}

.validator-filter-field {
    display: flex;
    flex-direction: column;
    gap: 7px;
}

.validator-filter-field label {
    color: #39424e;
    font-size: 13px;
    font-weight: 700;
}

.validator-filter-field select {
    width: 100%;
    min-height: 40px;
    padding: 8px 34px 8px 10px;

    color: var(--text);
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 5px;

    font: inherit;
}

.validator-filter-actions {
    display: flex;
    align-items: end;
}

.validator-filter-actions button {
    min-height: 40px;
    padding: 8px 14px;

    color: var(--link);
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 5px;

    font: inherit;
    font-weight: 700;
    cursor: pointer;
    white-space: nowrap;
}

.validator-filter-actions button:hover {
    background: var(--soft);
}

.validator-result-info {
    margin-bottom: 8px;
    color: var(--muted);
    font-size: 13px;
}

.validator-no-results {
    padding: 24px;
    color: var(--muted);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
}

@media (max-width: 900px) {
    .validator-filter-panel {
        grid-template-columns: 1fr 1fr;
    }
}

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

    .validator-filter-actions button {
        width: 100%;
    }
}


/* =========================================================
   VALIDATOR FILTER FIX2
   ========================================================= */
.content-container .validator-filter-panel {
    display: grid !important;
    grid-template-columns: minmax(180px,1fr) minmax(220px,1fr) minmax(220px,1fr) auto !important;
    gap: 18px !important;
    align-items: end !important;
    width: 100% !important;
    margin: 0 0 28px !important;
    padding: 20px !important;
    background: #fff !important;
    border: 1px solid var(--border) !important;
    border-radius: 8px !important;
    box-shadow: 0 1px 2px rgba(0,0,0,.03) !important;
}

.content-container .validator-filter-field {
    display: flex !important;
    flex-direction: column !important;
    gap: 7px !important;
    min-width: 0 !important;
}

.content-container .validator-filter-field label {
    display: block !important;
    margin: 0 !important;
    font-size: 13px !important;
    line-height: 1.2 !important;
    font-weight: 700 !important;
    color: #39424e !important;
}

.content-container .validator-filter-field select {
    display: block !important;
    width: 100% !important;
    min-width: 0 !important;
    height: 42px !important;
    padding: 7px 36px 7px 11px !important;
    border: 1px solid #cfd6de !important;
    border-radius: 6px !important;
    background-color: #fff !important;
    color: var(--text) !important;
    font: inherit !important;
    font-size: 15px !important;
    appearance: auto !important;
}

.content-container .validator-filter-actions {
    display: flex !important;
    align-items: flex-end !important;
}

.content-container .validator-filter-actions button {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    height: 42px !important;
    padding: 0 16px !important;
    border: 1px solid #cfd6de !important;
    border-radius: 6px !important;
    background: #fff !important;
    color: var(--link) !important;
    font: inherit !important;
    font-size: 14px !important;
    font-weight: 700 !important;
    cursor: pointer !important;
    white-space: nowrap !important;
}

.content-container .validator-filter-actions button:hover {
    background: var(--soft) !important;
}

.validator-no-results {
    padding: 24px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--muted);
}

@media (max-width: 980px) {
    .content-container .validator-filter-panel {
        grid-template-columns: 1fr 1fr !important;
    }
}

@media (max-width: 620px) {
    .content-container .validator-filter-panel {
        grid-template-columns: 1fr !important;
    }

    .content-container .validator-filter-actions button {
        width: 100% !important;
    }
}


/* =========================================================
   SCHEMA PDF VIEWER
   ========================================================= */

.modal.pdf-mode .modal-box {
    width: min(1200px, 94vw);
    height: min(900px, 90vh);
    max-height: 90vh;
    overflow: hidden;
    padding: 42px 18px 58px;
}

.modal.pdf-mode #schema-modal-body {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.schema-pdf-viewer {
    display: block;
    width: 100%;
    height: 100%;
    min-height: 600px;
    border: 1px solid var(--border);
    background: #ffffff;
}

.modal.pdf-mode .modal-close {
    position: absolute;
    right: 18px;
    bottom: 12px;
    margin: 0;
}

@media (max-width: 760px) {
    .modal.pdf-mode {
        padding: 8px;
    }

    .modal.pdf-mode .modal-box {
        width: 100%;
        height: 92vh;
        max-height: 92vh;
        padding: 40px 8px 54px;
    }

    .schema-pdf-viewer {
        min-height: 0;
    }
}