:root {
    --bg: #f4f5f7;
    --card-bg: #ffffff;
    --border: #e1e4e8;
    --text: #1f2328;
    --text-muted: #656d76;
    --primary: #1e293b;
    --primary-dark: #0f172a;
    --accent-bg: #f1f5f9;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Segoe UI", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
}

header {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    padding: 20px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    position: sticky;
    top: 0;
    z-index: 30;
}

header h1 {
    font-size: 20px;
    margin: 0;
    min-width: 200px;
}

.header-links {
    display: flex;
    align-items: center;
    gap: 20px;
}

.modul-nav {
    display: flex;
    gap: 4px;
}

.modul-nav a {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    text-decoration: none;
    padding: 6px 12px;
    border-radius: 6px;
}

.modul-nav a:hover {
    background: var(--accent-bg);
}

.modul-nav a.aktiv {
    color: white;
    background: var(--primary);
}

.unternav {
    display: flex;
    gap: 4px;
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    padding: 10px 32px;
}

.unternav a {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    text-decoration: none;
    padding: 6px 14px;
    border-radius: 999px;
}

.unternav a:hover {
    background: var(--accent-bg);
}

.unternav a.aktiv {
    color: var(--primary-dark);
    background: var(--accent-bg);
}

.suche {
    display: flex;
    gap: 8px;
    align-items: center;
}

.suche-oben {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px 16px;
    margin-bottom: 16px;
}

.suche-oben input[type="text"] {
    flex: 1;
    max-width: 420px;
}

.suche input {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    width: 280px;
    font-size: 14px;
}

.suche select {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    background: var(--card-bg);
    color: var(--text);
}

.zuweisen-form select {
    padding: 6px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 13px;
    font-family: inherit;
    background: var(--card-bg);
    color: var(--text);
    max-width: 180px;
}

.suche button {
    padding: 8px 16px;
    border: none;
    background: var(--primary);
    color: white;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
}

.suche button:hover { background: var(--primary-dark); }

.suche .reset {
    font-size: 13px;
    color: var(--text-muted);
    text-decoration: none;
}

main {
    padding: 24px 32px;
    max-width: 1200px;
    margin: 0 auto;
}

.beleg-layout {
    display: flex;
    align-items: flex-start;
    gap: 24px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px 32px;
}

.beleg-layout main {
    flex: 1;
    padding: 0;
    max-width: none;
    margin: 0;
    min-width: 0;
}

.filter-sidebar {
    width: 200px;
    flex-shrink: 0;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 16px;
    position: sticky;
    top: 24px;
}

.filter-sidebar h2 {
    margin: 0 0 10px 0;
    font-size: 12px;
    text-transform: uppercase;
    color: var(--text-muted);
}

.filter-liste {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.filter-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 10px;
    border-radius: 6px;
    text-decoration: none;
    color: var(--text);
    font-size: 14px;
}

.filter-link:hover {
    background: var(--accent-bg);
}

.filter-link.aktiv {
    background: var(--primary);
    color: white;
}

.filter-link.aktiv .filter-anzahl {
    background: rgba(255, 255, 255, 0.25);
    color: white;
}

.filter-anzahl {
    font-size: 12px;
    font-weight: 600;
    background: var(--bg);
    color: var(--text-muted);
    border-radius: 999px;
    padding: 2px 8px;
}

.checkbox-spalte {
    width: 36px;
    text-align: center;
}

.bulk-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--accent-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 16px;
    margin-bottom: 12px;
    font-size: 14px;
}

.bulk-bar #bulkAnzahl {
    font-weight: 600;
    color: var(--text-muted);
    margin-right: auto;
}

.bulk-bar select {
    padding: 6px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
}

.bulk-bar button {
    padding: 6px 16px;
    border: none;
    background: var(--primary);
    color: white;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
}

.bulk-bar button:hover:not(:disabled) {
    background: var(--primary-dark);
}

.bulk-bar button:disabled {
    background: #c7ccd1;
    cursor: not-allowed;
}

.listen-kopf {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.button-primär {
    display: inline-block;
    padding: 8px 16px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 6px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
}

.button-primär:hover {
    background: var(--primary-dark);
}

.button-sekundär {
    display: inline-block;
    padding: 8px 16px;
    background: var(--card-bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 6px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
}

.button-sekundär:hover {
    background: var(--bg);
}

.einstellungen-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.badge-aktiv {
    font-size: 11px;
    font-weight: 600;
    background: #dcfce7;
    color: #15803d;
    border-radius: 999px;
    padding: 2px 8px;
}

.aktionen {
    display: flex;
    gap: 12px;
    align-items: center;
    white-space: nowrap;
}

.link-bearbeiten {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 13px;
}

.link-loeschen {
    color: #b91c1c;
    text-decoration: none;
    font-weight: 600;
    font-size: 13px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    font-family: inherit;
}

.inline-form {
    display: inline;
}

.formular {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 12px;
}

.formular-zeile {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.formular-zeile label {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 600;
    flex: 1;
    min-width: 160px;
}

.formular-zeile input,
.formular-zeile select {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    color: var(--text);
    font-weight: normal;
    background: var(--card-bg);
    font-family: inherit;
}

.block h3 {
    margin: 8px 0 0 0;
    font-size: 13px;
    color: var(--text-muted);
    text-transform: uppercase;
}

.einstellungen-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 10px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    background: var(--bg);
    border-radius: 6px;
    padding: 8px 12px;
}

.formular-aktionen {
    display: flex;
    gap: 12px;
    margin-top: 8px;
}

.kachel-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-top: 12px;
}

.kachel {
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 28px 24px;
    text-decoration: none;
    color: inherit;
    transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
}

.kachel:hover {
    border-color: var(--primary);
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.14);
    transform: translateY(-2px);
}

.kachel-icon {
    font-size: 32px;
}

.kachel-titel {
    font-size: 18px;
    font-weight: 700;
}

.kachel-text {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.4;
}

.uebersicht-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.uebersicht-karte {
    display: flex;
    flex-direction: column;
    gap: 10px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 18px 20px;
    text-decoration: none;
    color: inherit;
}

.uebersicht-karte:hover {
    border-color: var(--primary);
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.14);
    transform: translateY(-2px);
}

.uebersicht-karte-titel {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.uebersicht-werte {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.uebersicht-wert .zahl {
    display: block;
    font-size: 26px;
    font-weight: 700;
    color: var(--primary-dark);
}

.uebersicht-wert .bezeichnung {
    font-size: 12px;
    color: var(--text-muted);
}

.uebersicht-inventur-zeile {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-muted);
}

.uebersicht-fehler {
    font-size: 13px;
    color: var(--text-muted);
    font-style: italic;
    margin: 0;
}

.schmal {
    max-width: 560px;
}

.login-block {
    margin-top: 40px;
}

.fehlermeldung {
    background: #fee2e2;
    color: #b91c1c;
    border-radius: 6px;
    padding: 10px 14px;
    font-size: 13px;
    font-weight: 600;
}

.erfolgsmeldung {
    background: #dcfce7;
    color: #15803d;
    border-radius: 6px;
    padding: 10px 14px;
    font-size: 13px;
    font-weight: 600;
}

.anzahl {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 16px;
}

.leer {
    color: var(--text-muted);
    text-align: center;
    padding: 40px;
}

.artikel-grid {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.artikel-card {
    display: block;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 16px 20px;
    text-decoration: none;
    color: inherit;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.artikel-card:hover {
    border-color: var(--primary);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.12);
}

.artikel-kopf {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    flex-wrap: wrap;
}

.artikel-titel {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.artikel-titel .artikelnummer {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 600;
    letter-spacing: 0.02em;
}

.artikel-titel .bezeichnung {
    font-size: 16px;
    font-weight: 600;
}

.artikel-titel .bezeichnung2 {
    font-size: 13px;
    color: var(--text-muted);
}

.gesamtbestand {
    text-align: right;
    background: var(--accent-bg);
    border-radius: 8px;
    padding: 6px 14px;
    min-width: 120px;
}

.gesamtbestand .wert {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-dark);
}

.gesamtbestand .einheit {
    font-size: 13px;
    color: var(--text-muted);
    margin-left: 4px;
}

.gesamtbestand .label {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
}

.hersteller {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 8px;
}

.lager-tabelle {
    width: 100%;
    border-collapse: collapse;
    margin-top: 12px;
    font-size: 13px;
}

.lager-tabelle th {
    text-align: left;
    color: var(--text-muted);
    font-weight: 600;
    border-bottom: 1px solid var(--border);
    padding: 6px 8px;
}

.lager-tabelle td {
    padding: 6px 8px;
    border-bottom: 1px solid var(--border);
}

.lager-tabelle tr:last-child td {
    border-bottom: none;
}

.bestand-wert {
    font-weight: 600;
}

.status {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 12px;
    background: #f0f0f0;
    color: var(--text-muted);
}

.status-aktiv,
.status-zurueckgegeben {
    background: #dcfce7;
    color: #15803d;
}

.status-offen {
    background: #fef3c7;
    color: #b45309;
}

.kein-bestand {
    color: var(--text-muted);
    font-size: 13px;
    margin-top: 8px;
    font-style: italic;
}

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-top: 24px;
    padding: 16px 0;
}

.pagination a {
    color: var(--primary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    padding: 6px 14px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--card-bg);
}

.pagination a:hover {
    background: var(--accent-bg);
}

.pagination .seiten-info {
    font-size: 13px;
    color: var(--text-muted);
}

.zurueck {
    font-size: 13px;
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

.detail-kopf {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    flex-wrap: wrap;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 20px 24px;
    margin-bottom: 20px;
}

.detail-kopf .bezeichnung-gross {
    font-size: 20px;
    font-weight: 700;
}

.detail-kopf .hersteller {
    display: block;
}

.block {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 20px 24px;
    margin-bottom: 20px;
}

.block h2 {
    margin: 0 0 4px 0;
    font-size: 15px;
}

.ausleiher-gruppe {
    padding: 14px 24px;
}

.ausleiher-gruppe[open] {
    padding-bottom: 20px;
}

.ausleiher-summary {
    cursor: pointer;
    font-weight: 600;
    font-size: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.ausleiher-gruppe[open] .ausleiher-summary {
    margin-bottom: 12px;
}

.ausleiher-summary .anzahl-badge {
    font-size: 11px;
    font-weight: 600;
    background: var(--border);
    border-radius: 999px;
    padding: 2px 9px;
}

.historie-liste {
    display: none;
    margin-top: 12px;
}

.historie-liste.offen {
    display: block;
}

.historie-eintraege {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
    max-height: 260px;
    overflow-y: auto;
}

.historie-eintraege li {
    font-size: 13px;
    padding: 8px 10px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
}

.historie-zeit {
    font-family: monospace;
    color: var(--text-muted);
    margin-right: 8px;
}

.historie-benutzer {
    font-weight: 600;
    margin-right: 6px;
}

.buchungen-tabelle {
    width: 100%;
    border-collapse: collapse;
    margin-top: 12px;
    font-size: 13px;
}

.buchungen-tabelle th {
    text-align: left;
    color: var(--text-muted);
    font-weight: 600;
    border-bottom: 1px solid var(--border);
    padding: 8px;
}

.buchungen-tabelle td {
    padding: 8px;
    border-bottom: 1px solid var(--border);
}

.buchungen-tabelle tr:last-child td {
    border-bottom: none;
}

.stueck-wert {
    font-weight: 700;
    text-align: right;
}

.stueck-wert.negativ { color: #b91c1c; }
.stueck-wert.positiv { color: #15803d; }

.tabellen-block {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 8px 20px;
    overflow-x: auto;
}

.belege-tabelle {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.belege-tabelle th {
    text-align: left;
    color: var(--text-muted);
    font-weight: 600;
    border-bottom: 1px solid var(--border);
    padding: 10px 12px;
    font-size: 12px;
    text-transform: uppercase;
}

.belege-tabelle td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
}

.belege-tabelle tr:last-child td {
    border-bottom: none;
}

.belege-tabelle tr.klickbar {
    cursor: pointer;
}

.belege-tabelle tr.klickbar:hover {
    background: var(--accent-bg);
}

.mono {
    font-family: "Consolas", monospace;
    font-weight: 600;
}

.status-storniert {
    background: #fee2e2;
    color: #b91c1c;
}

.status-host {
    background: #dbeafe;
    color: #1d4ed8;
}

.status-inaktiv {
    background: #f0f0f0;
    color: var(--text-muted);
}

.detail-sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.25);
    z-index: 40;
}

.detail-sidebar-backdrop.offen {
    display: block;
}

.detail-sidebar {
    position: fixed;
    top: 50%;
    left: 50%;
    max-height: 90vh;
    width: min(700px, 92vw);
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 14px;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.22);
    z-index: 50;
    transform: translate(-50%, -50%) scale(0.98);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.2s ease, opacity 0.2s ease;
    display: flex;
    flex-direction: column;
}

.detail-sidebar-breit {
    width: min(1000px, 95vw);
}

.detail-sidebar.offen {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
    pointer-events: auto;
}

.detail-sidebar-kopf {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    background: var(--card-bg);
    border-radius: 14px 14px 0 0;
    flex-shrink: 0;
}

.detail-sidebar-kopf h2 {
    margin: 0;
    font-size: 15px;
}

.detail-sidebar-schliessen {
    background: none;
    border: none;
    font-size: 22px;
    line-height: 1;
    cursor: pointer;
    color: var(--text-muted);
    padding: 4px 8px;
}

.detail-sidebar-schliessen:hover {
    color: var(--text);
}

.detail-sidebar-inhalt {
    padding: 20px;
    flex: 1;
    overflow-y: auto;
}

.detail-sidebar-inhalt .kein-bestand {
    text-align: center;
    padding: 40px 0;
}

.detail-sidebar-ladeanzeige {
    text-align: center;
    padding: 60px 0;
    color: var(--text-muted);
}

.qr-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.qr-bild {
    width: 84px;
    height: 84px;
    background: white;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 4px;
}

.qr-beschriftung {
    font-size: 11px;
    font-family: "Consolas", monospace;
    color: var(--text-muted);
}

.qr-bild-klein {
    width: 36px;
    height: 36px;
    background: white;
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 2px;
}

.signatur-bild {
    display: block;
    max-width: 320px;
    width: 100%;
    height: auto;
    background: white;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 8px;
}

/* Kombo-Suchfeld: Texteingabe mit Ergebnisliste (z.B. Werkzeug-Ausleihe-Panel).
   Bewusst NICHT position:absolute - der Sidebar-Inhalt ist ein content-hoher Flex-/Scroll-
   Container, der sich nicht auf absolut positionierte Kinder ausdehnt; die Ergebnisliste
   wuerde dadurch oberhalb/unterhalb des sichtbaren Bereichs "verschwinden" und man muesste
   selbst bei nur einem Treffer erst den (winzigen) Container scrollen. Stattdessen reiht
   sich die Ergebnisliste normal in den Fluss ein und schiebt nachfolgenden Inhalt herunter -
   der Sidebar-Inhalt wächst dadurch automatisch mit. */
.kombo-eingabe {
    width: 100%;
    padding: 14px 18px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 16px;
    color: var(--text);
    background: var(--card-bg);
}

.kombo-eingabe:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.kombo-ergebnisse {
    margin-top: 8px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
    max-height: 480px;
    overflow-y: auto;
}

.kombo-ergebnisse:empty {
    display: none;
    margin-top: 0;
    border: none;
    box-shadow: none;
}

.kombo-zeile {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    cursor: pointer;
    border-bottom: 1px solid var(--border);
}

.kombo-zeile:last-child {
    border-bottom: none;
}

.kombo-zeile:hover {
    background: var(--accent-bg);
}

.kombo-zeile .kombo-titel {
    font-weight: 600;
    font-size: 14px;
}

.kombo-zeile .kombo-sub {
    font-size: 13px;
    color: var(--text-muted);
}

.kombo-zeile .kombo-badge {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    white-space: nowrap;
}

.kombo-kein-treffer {
    padding: 12px 16px;
    margin: 0;
    font-size: 13px;
    color: var(--text-muted);
}

.wa-menge-feld {
    padding: 7px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    width: 90px;
}