/**
 * ============================================================
 * KI-Greven.de — Admin-Bereich Stylesheet
 * ============================================================
 * 
 * Aufgabe:
 *   Komplettes Styling für den Admin-Bereich.
 *   Responsive, schlank, selbsterklärend.
 * 
 * Struktur:
 *   1. Variablen (Farben, Abstände)
 *   2. Reset & Grundlagen
 *   3. Layout (Header, Nav, Main, Footer)
 *   4. Navigation (Sidebar)
 *   5. Seiteninhalt
 *   6. Formulare & Eingabefelder
 *   7. Buttons
 *   8. Tabellen
 *   9. Flash-Nachrichten
 *  10. Karten (Dashboard)
 *  11. Paginierung
 *  12. Medien-Bibliothek
 *  13. Login-Seite
 *  14. Responsive (Mobile)
 *  15. Tabs
 *  16. Filter-Leiste
 *  17. Hilfsklassen
 *  18. Responsive
 *  19. News-Bilder-Manager
 *  20. Mediengalerie-Modal
 * 
 * Schriften: Verdana, Arial (lokal, keine externen Fonts)
 * 
 * Pfad: /admin.ki-greven.de/css/admin.css
 */

/* =============================================================
   1. VARIABLEN
   ============================================================= */

:root {
    /* Farben */
    --color-primary: #8B1A1A;
    --color-primary-hover: #6B0F0F;
    --color-primary-light: #F5E6E6;
    --color-success: #27ae60;
    --color-success-light: #E8F8EF;
    --color-warning: #f39c12;
    --color-warning-light: #FEF5E7;
    --color-error: #e74c3c;
    --color-error-light: #FDEDEC;
    --color-info: #2980b9;
    --color-info-light: #EBF5FB;

    /* Grautöne */
    --color-bg: #f4f5f7;
    --color-white: #ffffff;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-text-muted: #999999;
    --color-border: #ddd;
    --color-border-light: #eee;

    /* Layout */
    --nav-width: 240px;
    --header-height: 56px;

    /* Abstände */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    /* Schatten */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.1);

    /* Rundungen */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
}

/* =============================================================
   2. RESET & GRUNDLAGEN
   ============================================================= */

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 15px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: Verdana, Arial, sans-serif;
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.5;
    min-height: 100vh;
}

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

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

img {
    max-width: 100%;
    height: auto;
}

/* =============================================================
   3. LAYOUT
   ============================================================= */

body.logged-in {
    display: grid;
    grid-template-columns: var(--nav-width) 1fr;
    grid-template-rows: var(--header-height) 1fr auto;
    grid-template-areas:
        "header header"
        "nav main"
        "nav footer";
    min-height: 100vh;
}

.admin-header {
    grid-area: header;
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--spacing-lg);
    background: var(--color-primary);
    color: var(--color-white);
    height: var(--header-height);
    box-shadow: var(--shadow-md);
}

.admin-nav {
    grid-area: nav;
    background: var(--color-white);
    border-right: 1px solid var(--color-border);
    overflow-y: auto;
    padding: var(--spacing-md) 0;
}

.admin-main {
    grid-area: main;
    padding: var(--spacing-lg);
    overflow-x: hidden;
}

.admin-footer {
    grid-area: footer;
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: center;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    border-top: 1px solid var(--color-border-light);
}

/* =============================================================
   4. HEADER
   ============================================================= */

.admin-header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.admin-logo {
    color: var(--color-white);
    font-size: 1.1rem;
    font-weight: bold;
    text-decoration: none;
}

.admin-logo span {
    font-weight: normal;
    opacity: 0.8;
}

.admin-logo:hover {
    color: var(--color-white);
    text-decoration: none;
    opacity: 0.9;
}

.admin-header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.header-link {
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.85rem;
    text-decoration: none;
}

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

.header-user {
    font-size: 0.85rem;
    opacity: 0.85;
}

.header-logout {
    background: rgba(255, 255, 255, 0.15);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
}

.header-logout:hover {
    background: rgba(255, 255, 255, 0.25);
}

/* Hamburger-Menü (Mobile) */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    flex-direction: column;
    gap: 4px;
}

.menu-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-white);
    border-radius: 1px;
}

/* =============================================================
   5. NAVIGATION (Sidebar)
   ============================================================= */

.admin-nav ul {
    list-style: none;
}

.admin-nav li a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-lg);
    color: var(--color-text);
    font-size: 0.9rem;
    text-decoration: none;
    border-left: 3px solid transparent;
    transition: background 0.15s, border-color 0.15s;
}

.admin-nav li a:hover {
    background: var(--color-bg);
    text-decoration: none;
}

.admin-nav li.active a {
    background: var(--color-primary-light);
    color: var(--color-primary);
    border-left-color: var(--color-primary);
    font-weight: bold;
}

.admin-nav .nav-section {
    padding: var(--spacing-md) var(--spacing-lg) var(--spacing-xs);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    font-weight: bold;
}

/* =============================================================
   6. SEITENINHALT
   ============================================================= */

.admin-page-header {
    margin-bottom: var(--spacing-lg);
}

.admin-page-header h1 {
    font-size: 1.4rem;
    font-weight: bold;
    color: var(--color-text);
}

.admin-content {
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

/* Bereich-Kopfleiste (Titel + Button rechts) */
.content-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.content-header h2 {
    font-size: 1.1rem;
    font-weight: bold;
}

/* =============================================================
   7. FORMULARE & EINGABEFELDER
   ============================================================= */

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: bold;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.form-group .form-hint {
    display: block;
    font-size: 0.78rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
}

.form-control {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: Verdana, Arial, sans-serif;
    font-size: 0.9rem;
    color: var(--color-text);
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: border-color 0.15s;
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px var(--color-primary-light);
}

.form-control-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.82rem;
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

select.form-control {
    appearance: auto;
}

input[type="color"].form-control {
    padding: var(--spacing-xs);
    height: 40px;
    cursor: pointer;
}

input[type="file"].form-control {
    padding: var(--spacing-sm);
}

/* Checkbox / Toggle */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.form-check input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
    cursor: pointer;
}

.form-check label {
    font-weight: normal;
    cursor: pointer;
    margin-bottom: 0;
}

/* Zwei Spalten nebeneinander */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

/* Drei Spalten */
.form-row-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: var(--spacing-lg);
}

/* Fieldset */
.form-fieldset {
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.form-fieldset legend {
    font-size: 0.95rem;
    font-weight: bold;
    padding: 0 var(--spacing-sm);
    color: var(--color-primary);
}

/* Kompakte Formulargruppe (für verschachtelte Felder) */
.form-group-sm {
    margin-bottom: 0;
}

.form-group-sm label {
    display: block;
    font-size: 0.75rem;
    font-weight: bold;
    color: var(--color-text-light);
    margin-bottom: 2px;
}

/* SEO Vorschau */
.seo-preview {
    background: var(--color-bg);
    border-radius: var(--radius-sm);
    padding: var(--spacing-md);
    margin-top: var(--spacing-sm);
    font-size: 0.85rem;
}

.seo-preview .seo-title {
    color: #1a0dab;
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.seo-preview .seo-url {
    color: #006621;
    font-size: 0.82rem;
    margin-bottom: var(--spacing-xs);
}

.seo-preview .seo-desc {
    color: var(--color-text-light);
    font-size: 0.82rem;
}

/* Bild-Vorschau */
.image-preview {
    margin-top: var(--spacing-sm);
    max-width: 300px;
}

.image-preview img {
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border-light);
}

/* =============================================================
   8. BUTTONS
   ============================================================= */

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: Verdana, Arial, sans-serif;
    font-size: 0.85rem;
    font-weight: bold;
    text-decoration: none;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
    white-space: nowrap;
}

.btn:hover {
    text-decoration: none;
}

.btn[disabled] {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.btn-primary:hover {
    background: var(--color-primary-hover);
    color: var(--color-white);
}

.btn-success {
    background: var(--color-success);
    color: var(--color-white);
    border-color: var(--color-success);
}

.btn-success:hover {
    background: #219a52;
    color: var(--color-white);
}

.btn-warning {
    background: var(--color-warning);
    color: var(--color-white);
    border-color: var(--color-warning);
}

.btn-warning:hover {
    background: #e08e0b;
    color: var(--color-white);
}

.btn-danger {
    background: var(--color-error);
    color: var(--color-white);
    border-color: var(--color-error);
}

.btn-danger:hover {
    background: #c0392b;
    color: var(--color-white);
}

.btn-outline {
    background: transparent;
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn-outline:hover {
    background: var(--color-bg);
    color: var(--color-text);
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.78rem;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
}

/* Button-Gruppen */
.btn-group {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* =============================================================
   9. TABELLEN
   ============================================================= */

.table-wrapper {
    overflow-x: auto;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.admin-table th,
.admin-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-border-light);
    vertical-align: middle;
}

.admin-table th {
    font-weight: bold;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--color-text-muted);
    background: var(--color-bg);
    border-bottom-color: var(--color-border);
}

.admin-table tr:hover {
    background: #fafafa;
}

.admin-table .text-right {
    text-align: right;
}

.admin-table .text-center {
    text-align: center;
}

.admin-table .nowrap {
    white-space: nowrap;
}

/* Status-Badges */
.badge {
    display: inline-block;
    padding: 2px var(--spacing-sm);
    font-size: 0.75rem;
    font-weight: bold;
    border-radius: 10px;
    white-space: nowrap;
}

.badge-success {
    background: var(--color-success-light);
    color: var(--color-success);
}

.badge-warning {
    background: var(--color-warning-light);
    color: var(--color-warning);
}

.badge-danger {
    background: var(--color-error-light);
    color: var(--color-error);
}

.badge-info {
    background: var(--color-info-light);
    color: var(--color-info);
}

.badge-muted {
    background: #eee;
    color: var(--color-text-muted);
}

/* =============================================================
   10. FLASH-NACHRICHTEN
   ============================================================= */

.flash {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
}

.flash-success {
    background: var(--color-success-light);
    color: var(--color-success);
    border: 1px solid var(--color-success);
}

.flash-error {
    background: var(--color-error-light);
    color: var(--color-error);
    border: 1px solid var(--color-error);
}

.flash-info {
    background: var(--color-info-light);
    color: var(--color-info);
    border: 1px solid var(--color-info);
}

.flash-warning {
    background: var(--color-warning-light);
    color: var(--color-warning);
    border: 1px solid var(--color-warning);
}

.flash-close {
    background: none;
    border: none;
    font-size: 1.3rem;
    cursor: pointer;
    color: inherit;
    opacity: 0.7;
    padding: 0 var(--spacing-xs);
}

.flash-close:hover {
    opacity: 1;
}

/* =============================================================
   11. KARTEN (Dashboard)
   ============================================================= */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--color-primary);
}

.stat-card-success {
    border-left-color: var(--color-success);
}

.stat-card-warning {
    border-left-color: var(--color-warning);
}

.stat-card-info {
    border-left-color: var(--color-info);
}

.stat-card .stat-value {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--color-text);
    line-height: 1.2;
}

.stat-card .stat-label {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
}

/* =============================================================
   12. PAGINIERUNG
   ============================================================= */

.pagination {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 var(--spacing-sm);
    font-size: 0.85rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    text-decoration: none;
    color: var(--color-text);
}

.pagination a:hover {
    background: var(--color-bg);
    text-decoration: none;
}

.pagination .active {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.pagination .disabled {
    opacity: 0.5;
    pointer-events: none;
}

/* =============================================================
   13. MEDIENBIBLIOTHEK
   ============================================================= */

.media-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: var(--spacing-md);
}

.media-item {
    position: relative;
    background: var(--color-bg);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--color-border-light);
    aspect-ratio: 1;
}

.media-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.media-item .media-pdf {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    text-align: center;
    padding: var(--spacing-sm);
}

.media-item .media-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.7);
    color: var(--color-white);
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.7rem;
    opacity: 0;
    transition: opacity 0.2s;
}

.media-item:hover .media-info {
    opacity: 1;
}

/* =============================================================
   14. LOGIN-SEITE
   ============================================================= */

body.logged-out {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--color-primary);
}

.login-main {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.login-wrapper {
    width: 100%;
    max-width: 400px;
}

.login-box {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.login-box h1 {
    font-size: 1.3rem;
    text-align: center;
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary);
}

.login-box .login-subtitle {
    text-align: center;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
}

.login-box .form-group {
    margin-bottom: var(--spacing-md);
}

.login-box .btn {
    width: 100%;
    justify-content: center;
    padding: var(--spacing-md);
}

.login-error {
    background: var(--color-error-light);
    color: var(--color-error);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    margin-bottom: var(--spacing-md);
    text-align: center;
}

/* =============================================================
   15. TABS (Einstellungen)
   ============================================================= */

.tabs {
    display: flex;
    gap: 0;
    border-bottom: 2px solid var(--color-border);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.tab {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.85rem;
    font-weight: bold;
    color: var(--color-text-muted);
    text-decoration: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: color 0.15s, border-color 0.15s;
}

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

.tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

/* =============================================================
   16. FILTER-LEISTE
   ============================================================= */

.filter-bar {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.filter-bar .form-control {
    width: auto;
    min-width: 180px;
}

.filter-bar .btn {
    flex-shrink: 0;
}

/* =============================================================
   17. HILFSKLASSEN
   ============================================================= */

.text-muted { color: var(--color-text-muted); }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-error); }
.text-warning { color: var(--color-warning); }
.text-right { text-align: right; }
.text-center { text-align: center; }
.text-sm { font-size: 0.8rem; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.hidden { display: none; }

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* =============================================================
   18. NEWS-BILDER-MANAGER
   ============================================================= */

/* Bilderliste (Container für alle Bild-Items) */
.news-images-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    min-height: 20px;
}

/* Einzelnes Bild-Item */
.news-image-item {
    position: relative;
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: border-color 0.2s, box-shadow 0.2s;
}

/* Erstes Bild = Vorschaubild kennzeichnen */
.news-image-item:first-child {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.news-image-item:first-child::after {
    content: 'Vorschaubild';
    position: absolute;
    top: -9px;
    left: 40px;
    background: var(--color-primary);
    color: var(--color-white);
    font-size: 0.68rem;
    font-weight: bold;
    padding: 0 var(--spacing-sm);
    border-radius: 3px;
    line-height: 1.6;
}

/* Drag & Drop Zustände */
.news-image-item.dragging {
    opacity: 0.4;
    border-style: dashed;
}

.news-image-item.drag-over {
    border-color: var(--color-success);
    background: var(--color-success-light);
}

/* Sortier-Griff */
.news-image-handle {
    cursor: grab;
    font-size: 1.3rem;
    color: var(--color-text-muted);
    user-select: none;
    padding: var(--spacing-xs);
    line-height: 1;
    flex-shrink: 0;
    margin-top: var(--spacing-xs);
}

.news-image-handle:active {
    cursor: grabbing;
}

/* Bild-Vorschau im Item */
.news-image-preview {
    width: 100px;
    height: 75px;
    flex-shrink: 0;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--color-border-light);
}

.news-image-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Eingabefelder im Item */
.news-image-fields {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

/* Entfernen-Button */
.news-image-remove {
    flex-shrink: 0;
    align-self: flex-start;
}

/* Aktions-Leiste unter der Bilderliste */
.news-images-actions {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    flex-wrap: wrap;
}

.news-images-count {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    font-weight: bold;
    margin-left: var(--spacing-xs);
}

/* Upload-Platzhalter (Spinner) */
.news-image-item.uploading {
    opacity: 0.6;
}

.upload-spinner {
    width: 28px;
    height: 28px;
    margin: auto;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: upload-spin 0.7s linear infinite;
}

@keyframes upload-spin {
    to { transform: rotate(360deg); }
}

/* =============================================================
   19. MEDIENGALERIE-MODAL
   ============================================================= */

.modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 9000;
    align-items: center;
    justify-content: center;
}

.modal[aria-hidden="false"] {
    display: flex;
}

.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    z-index: 1;
}

.modal-content {
    position: relative;
    z-index: 2;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
    max-height: 85vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal-large {
    width: 90%;
    max-width: 860px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--color-border-light);
}

.modal-header h2 {
    margin: 0;
    font-size: 1.05rem;
    color: var(--color-text);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.4rem;
    cursor: pointer;
    color: var(--color-text-muted);
    padding: var(--spacing-xs);
    line-height: 1;
}

.modal-close:hover {
    color: var(--color-text);
}

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
    flex: 1;
}

/* Galerie-Suche */
.gallery-search {
    margin-bottom: var(--spacing-md);
}

/* Galerie-Grid */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    gap: var(--spacing-sm);
}

.gallery-item {
    cursor: pointer;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: border-color 0.15s, transform 0.1s;
    aspect-ratio: 1 / 1;
    background: var(--color-bg);
}

.gallery-item:hover {
    border-color: var(--color-primary);
    transform: scale(1.03);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Galerie-Paginierung */
.gallery-pagination {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
}

.gallery-pagination button {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--color-border);
    background: var(--color-white);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.82rem;
    font-family: Verdana, Arial, sans-serif;
    transition: background 0.15s;
}

.gallery-pagination button:hover {
    background: var(--color-bg);
}

.gallery-pagination button.active {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

/* =============================================================
   20. RESPONSIVE (Mobile)
   ============================================================= */

@media (max-width: 900px) {
    body.logged-in {
        grid-template-columns: 1fr;
        grid-template-areas:
            "header"
            "main"
            "footer";
    }

    .admin-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        bottom: 0;
        width: var(--nav-width);
        z-index: 90;
        transform: translateX(-100%);
        transition: transform 0.25s ease;
        box-shadow: var(--shadow-md);
    }

    .admin-nav.open {
        transform: translateX(0);
    }

    .menu-toggle {
        display: flex;
    }

    .admin-main {
        padding: var(--spacing-md);
    }

    .admin-content {
        padding: var(--spacing-md);
    }

    .form-row,
    .form-row-3 {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }

    .content-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .admin-header-right .header-user {
        display: none;
    }

    /* Modal kleiner */
    .modal-large {
        width: 96%;
    }

    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    }
}

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

    .filter-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-bar .form-control {
        width: 100%;
        min-width: 0;
    }

    .btn-group {
        flex-direction: column;
    }

    .btn-group .btn {
        width: 100%;
        justify-content: center;
    }

    .tabs {
        flex-direction: column;
        border-bottom: none;
    }

    .tab {
        border-bottom: none;
        border-left: 2px solid transparent;
        margin-bottom: 0;
    }

    .tab.active {
        border-left-color: var(--color-primary);
        border-bottom-color: transparent;
    }

    /* News-Bilder: kompaktere Darstellung */
    .news-image-item {
        flex-wrap: wrap;
    }

    .news-image-preview {
        width: 70px;
        height: 52px;
    }

    .news-image-item:first-child::after {
        left: 30px;
        font-size: 0.62rem;
    }
}