diff --git a/modules/shared/auth/ui/home.php b/modules/shared/auth/ui/home.php
index e2d9f1c..53f2729 100644
--- a/modules/shared/auth/ui/home.php
+++ b/modules/shared/auth/ui/home.php
@@ -643,6 +643,37 @@ function render_auth_home_page(array $user, array $otcProducts = [], array $best
     echo "  const contentRoot = document.querySelector('[data-left-navigation-content-body]');";
     echo "  if (!contentRoot || !contentRoot.querySelector('[data-lager-content]')) { return; }";
     echo "  lagerBindingsInstalled = true;";
+    echo "  let lagerMobileDetailHost = null;";
+    echo "  let lagerMobileDetailOpen = false;";
+    echo "  const escapeLagerHtml = (value) => String(value ?? '').replace(/[&<>\"']/g, (character) => ({ '&': '&amp;', '<': '&lt;', '>': '&gt;', '\"': '&quot;', \"'\": '&#39;' }[character] || character));";
+    echo "  const renderLagerMobileDetail = (trigger) => {";
+    echo "    const type = trigger.dataset.lagerDrawerType || 'Lager';";
+    echo "    const name = trigger.dataset.lagerDrawerName || '';";
+    echo "    const value = trigger.dataset.lagerDrawerValue || '';";
+    echo "    const isProduct = type === 'Produkt';";
+    echo "    const forecast = trigger.dataset.lagerDrawerForecast || 'Keine Prognose';";
+    echo "    const warning = trigger.dataset.lagerDrawerForecastWarning === 'true' || trigger.dataset.lagerDrawerForecastMhdWarning === 'true';";
+    echo "    const warningText = warning ? forecast : 'Keine akute Warnung.';";
+    echo "    const lotNumber = trigger.dataset.lagerDrawerLotNumber || 'Nicht hinterlegt';";
+    echo "    const supplierLotNumber = trigger.dataset.lagerDrawerSupplierLotNumber || 'Nicht hinterlegt';";
+    echo "    const expiryDate = trigger.dataset.lagerDrawerExpiryDate || 'Nicht hinterlegt';";
+    echo "    const virtualLot = trigger.dataset.lagerDrawerVirtualLotNumber || '';";
+    echo "    return ['<div class=\"sg-lager-mobile-detail-host\" data-lager-mobile-detail-host=\"true\">', '<div class=\"sg-navigation-card-layout\">', '<div class=\"sg-navigation-card-block\">', '<article class=\"sg-card\" data-component=\"card\" data-pattern=\"navigation-card\" aria-label=\"Navigation Detailansicht zurück oben\">', '<div class=\"sg-card-segment sg-card-segment--body\" data-component-part=\"card-body\" data-pattern-part=\"navigation-card-segment\">', '<div class=\"sg-navigation-card-center\">', '<button class=\"sg-interaction-element sg-hyperlink\" type=\"button\" data-lager-detail-back>zurück</button>', '</div></div></article></div></div>', '<article class=\"sg-card sg-vsf-drawer-card\" data-component=\"card\" data-pattern=\"card\" aria-label=\"Lager-Details\">', '<header class=\"sg-card-segment sg-card-segment--header sg-card-segment--darkblue\"><div class=\"sg-strong\">' + escapeLagerHtml(type) + ': ' + escapeLagerHtml(name) + '</div></header>', '<div class=\"sg-card-segment sg-card-segment--body sg-vsf-drawer-card__content\"><p class=\"sg-body\"><strong>Name:</strong> ' + escapeLagerHtml(name) + '</p><p class=\"sg-body\"><strong>' + (isProduct ? 'Anzahl im Lager:' : 'Artikelnummer:') + '</strong> ' + escapeLagerHtml(value) + '</p>' + (isProduct ? '<p class=\"sg-body\"><strong>Warnungen:</strong> ' + escapeLagerHtml(warningText) + '</p><p class=\"sg-body\"><strong>Naurua-Chargennummer:</strong> ' + escapeLagerHtml(lotNumber) + '<br><strong>Hersteller-Chargennummer:</strong> ' + escapeLagerHtml(supplierLotNumber) + '<br><strong>MHD:</strong> ' + escapeLagerHtml(expiryDate) + '</p><p class=\"sg-body\"><strong>Virtuelle Charge:</strong> ' + escapeLagerHtml(virtualLot || 'Keine virtuelle Fehlbestandscharge vorhanden.') + '</p>' : '') + '</div></article></div>'].join('');";
+    echo "  };";
+    echo "  const restoreLagerMobileDetail = () => {";
+    echo "    if (lagerMobileDetailHost && lagerMobileDetailHost.parentNode) { lagerMobileDetailHost.parentNode.removeChild(lagerMobileDetailHost); }";
+    echo "    lagerMobileDetailHost = null; lagerMobileDetailOpen = false; document.body.classList.remove('sg-lager-mobile-detail-open');";
+    echo "  };";
+    echo "  const openLagerMobileDetail = (trigger) => {";
+    echo "    restoreLagerMobileDetail(); const host = document.createElement('div'); host.innerHTML = renderLagerMobileDetail(trigger); lagerMobileDetailHost = host.firstElementChild;";
+    echo "    if (lagerMobileDetailHost) { document.body.appendChild(lagerMobileDetailHost); document.body.classList.add('sg-lager-mobile-detail-open'); }";
+    echo "    lagerMobileDetailOpen = true; window.history.pushState({ ...(window.history.state || {}), lagerView: 'detail' }, '', window.location.href);";
+    echo "  };";
+    echo "  const closeLagerMobileDetail = () => {";
+    echo "    if (!lagerMobileDetailOpen) { return; }";
+    echo "    if (window.history.state && window.history.state.lagerView === 'detail') { window.history.back(); return; }";
+    echo "    restoreLagerMobileDetail();";
+    echo "  };";
     echo "  const getDrawer = () => contentRoot.querySelector('[data-lager-drawer]');";
     echo "  const setDrawerState = (open) => {";
     echo "    const drawer = getDrawer(); const backdrop = contentRoot.querySelector('[data-lager-drawer-backdrop]');";
@@ -652,10 +683,12 @@ function render_auth_home_page(array $user, array $otcProducts = [], array $best
     echo "  const closeDrawer = () => { setDrawerState(false); contentRoot.querySelectorAll('[data-lager-drawer-open]').forEach((trigger) => trigger.setAttribute('aria-expanded', 'false')); };";
     echo "  contentRoot.addEventListener('click', (event) => {";
     echo "    const trigger = event.target.closest('[data-lager-drawer-open]');";
-    echo "    if (trigger) { event.preventDefault(); const drawer = getDrawer(); if (!drawer) { return; } const type = trigger.dataset.lagerDrawerType || 'Lager'; const name = trigger.dataset.lagerDrawerName || ''; const value = trigger.dataset.lagerDrawerValue || ''; drawer.querySelector('[data-lager-drawer-title]').textContent = type + ': ' + name; drawer.querySelector('[data-lager-drawer-name-value]').textContent = name; const valueRow = drawer.querySelector('[data-lager-drawer-value-row]'); if (valueRow) { valueRow.hidden = false; } drawer.querySelector('[data-lager-drawer-value-label]').textContent = type === 'Produkt' ? 'Anzahl im Lager:' : 'Artikelnummer:'; drawer.querySelector('[data-lager-drawer-value-value]').textContent = value; drawer.querySelectorAll('[data-lager-drawer-topic]').forEach((card) => { card.hidden = type !== 'Produkt'; }); if (type === 'Produkt') { const forecast = trigger.dataset.lagerDrawerForecast || 'Keine Prognose'; const warning = trigger.dataset.lagerDrawerForecastWarning === 'true' || trigger.dataset.lagerDrawerForecastMhdWarning === 'true'; const warningValue = drawer.querySelector('[data-lager-drawer-warning-value]'); if (warningValue) { warningValue.textContent = warning ? forecast : 'Keine akute Warnung.'; warningValue.classList.toggle('sg-strong', warning); warningValue.classList.toggle('lager-forecast-warning', trigger.dataset.lagerDrawerForecastWarning === 'true'); warningValue.classList.toggle('lager-forecast-mhd-warning', trigger.dataset.lagerDrawerForecastMhdWarning === 'true'); } drawer.querySelector('[data-lager-drawer-lot-number]').textContent = trigger.dataset.lagerDrawerLotNumber || 'Nicht hinterlegt'; drawer.querySelector('[data-lager-drawer-supplier-lot-number]').textContent = trigger.dataset.lagerDrawerSupplierLotNumber || 'Nicht hinterlegt'; drawer.querySelector('[data-lager-drawer-expiry-date]').textContent = trigger.dataset.lagerDrawerExpiryDate || 'Nicht hinterlegt'; const virtualLot = trigger.dataset.lagerDrawerVirtualLotNumber || ''; drawer.querySelector('[data-lager-drawer-virtual-lot-value]').textContent = virtualLot ? 'Virtuelle Charge: ' + virtualLot : 'Keine virtuelle Fehlbestandscharge vorhanden.'; } setDrawerState(true); contentRoot.querySelectorAll('[data-lager-drawer-open]').forEach((button) => button.setAttribute('aria-expanded', String(button === trigger))); return; }";
+    echo "    if (trigger) { event.preventDefault(); if (window.matchMedia('(max-width: 767px)').matches) { openLagerMobileDetail(trigger); return; } const drawer = getDrawer(); if (!drawer) { return; } const type = trigger.dataset.lagerDrawerType || 'Lager'; const name = trigger.dataset.lagerDrawerName || ''; const value = trigger.dataset.lagerDrawerValue || ''; drawer.querySelector('[data-lager-drawer-title]').textContent = type + ': ' + name; drawer.querySelector('[data-lager-drawer-name-value]').textContent = name; const valueRow = drawer.querySelector('[data-lager-drawer-value-row]'); if (valueRow) { valueRow.hidden = false; } drawer.querySelector('[data-lager-drawer-value-label]').textContent = type === 'Produkt' ? 'Anzahl im Lager:' : 'Artikelnummer:'; drawer.querySelector('[data-lager-drawer-value-value]').textContent = value; drawer.querySelectorAll('[data-lager-drawer-topic]').forEach((card) => { card.hidden = type !== 'Produkt'; }); if (type === 'Produkt') { const forecast = trigger.dataset.lagerDrawerForecast || 'Keine Prognose'; const warning = trigger.dataset.lagerDrawerForecastWarning === 'true' || trigger.dataset.lagerDrawerForecastMhdWarning === 'true'; const warningValue = drawer.querySelector('[data-lager-drawer-warning-value]'); if (warningValue) { warningValue.textContent = warning ? forecast : 'Keine akute Warnung.'; warningValue.classList.toggle('sg-strong', warning); warningValue.classList.toggle('lager-forecast-warning', trigger.dataset.lagerDrawerForecastWarning === 'true'); warningValue.classList.toggle('lager-forecast-mhd-warning', trigger.dataset.lagerDrawerForecastMhdWarning === 'true'); } drawer.querySelector('[data-lager-drawer-lot-number]').textContent = trigger.dataset.lagerDrawerLotNumber || 'Nicht hinterlegt'; drawer.querySelector('[data-lager-drawer-supplier-lot-number]').textContent = trigger.dataset.lagerDrawerSupplierLotNumber || 'Nicht hinterlegt'; drawer.querySelector('[data-lager-drawer-expiry-date]').textContent = trigger.dataset.lagerDrawerExpiryDate || 'Nicht hinterlegt'; const virtualLot = trigger.dataset.lagerDrawerVirtualLotNumber || ''; drawer.querySelector('[data-lager-drawer-virtual-lot-value]').textContent = virtualLot ? 'Virtuelle Charge: ' + virtualLot : 'Keine virtuelle Fehlbestandscharge vorhanden.'; } setDrawerState(true); contentRoot.querySelectorAll('[data-lager-drawer-open]').forEach((button) => button.setAttribute('aria-expanded', String(button === trigger))); return; }";
     echo "    if (event.target.closest('[data-lager-drawer-close]') || event.target.closest('[data-lager-drawer-backdrop]')) { closeDrawer(); }";
     echo "  });";
-    echo "  document.addEventListener('keydown', (event) => { if (event.key === 'Escape') { closeDrawer(); } });";
+    echo "  document.addEventListener('click', (event) => { if (event.target.closest('[data-lager-detail-back]')) { event.preventDefault(); closeLagerMobileDetail(); } });";
+    echo "  document.addEventListener('keydown', (event) => { if (event.key === 'Escape') { closeDrawer(); closeLagerMobileDetail(); } });";
+    echo "  window.addEventListener('popstate', (event) => { if (lagerMobileDetailOpen && (!event.state || event.state.lagerView !== 'detail')) { restoreLagerMobileDetail(); } });";
     echo "}";
     echo "function initBestellungenBindings() {";
     echo "  const contentRoot = document.querySelector('[data-left-navigation-content-body]');";
diff --git a/public/assets/styles.portal.css b/public/assets/styles.portal.css
index 3cdd3d1..0ef9aa2 100644
--- a/public/assets/styles.portal.css
+++ b/public/assets/styles.portal.css
@@ -58,6 +58,10 @@ body.sg-bestellungen-mobile-detail-open > :not([data-bestellungen-mobile-detail-
   display: none !important;
 }
 
+body.sg-lager-mobile-detail-open > :not([data-lager-mobile-detail-host]) {
+  display: none !important;
+}
+
 .sg-bestellungen-mobile-detail-host {
   position: fixed;
   inset: 0;
@@ -75,6 +79,23 @@ body.sg-bestellungen-mobile-detail-open > :not([data-bestellungen-mobile-detail-
   width: 100%;
 }
 
+.sg-lager-mobile-detail-host {
+  position: fixed;
+  inset: 0;
+  z-index: 1500;
+  display: flex;
+  flex-direction: column;
+  gap: var(--spacing-large);
+  padding: var(--spacing-small);
+  box-sizing: border-box;
+  overflow: auto;
+  background: var(--color-background-purple);
+}
+
+.sg-lager-mobile-detail-host .sg-vsf-drawer-card {
+  width: 100%;
+}
+
 .sg-otc-order-overlay {
   position: fixed;
   inset: 0;