diff --git a/index.html b/index.html
index cab2aea..6e9f3c2 100644
--- a/index.html
+++ b/index.html
@@ -3,6 +3,7 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <link rel="icon" href="/favicon.svg" type="image/svg+xml" />
     <title>Webklar WOMS 2.0</title>
   </head>
   <body>
diff --git a/public/favicon.svg b/public/favicon.svg
new file mode 100644
index 0000000..ef2669e
--- /dev/null
+++ b/public/favicon.svg
@@ -0,0 +1,8 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="512" height="512" viewBox="0 0 512 512">
+  <rect x="48" y="48" width="416" height="416" rx="92" fill="#FFFFFF"/>
+  <ellipse cx="256" cy="256" rx="210" ry="150" fill="#111111" transform="rotate(-28 256 256)"/>
+  <circle cx="356" cy="172" r="18" fill="#FFFFFF"/>
+  <g transform="translate(256 256) rotate(-28)">
+    <path d="M 0,-170 C 22,-105 60,-72 120,-56 C 60,-40 22,-8 0,64 C -22,-8 -60,-40 -120,-56 C -60,-72 -22,-105 0,-170 Z" fill="#FFFFFF"/>
+  </g>
+</svg>
diff --git a/src/App.jsx b/src/App.jsx
index e0505ce..74f0ad0 100644
--- a/src/App.jsx
+++ b/src/App.jsx
@@ -1,7 +1,8 @@
-import { BrowserRouter, Routes, Route, Navigate, useLocation } from 'react-router-dom'
+import { useCallback, useEffect, useState } from 'react'
+import { BrowserRouter, Routes, Route, Navigate, Link, useLocation } from 'react-router-dom'
 import { AuthProvider, useAuth } from './context/AuthContext'
 import Sidebar from './components/Navbar'
-import Footer from './components/Footer'
+import Logo from './components/Logo'
 import LoginPage from './pages/LoginPage'
 import TicketsPage from './pages/TicketsPage'
 import PlanboardPage from './pages/PlanboardPage'
@@ -28,12 +29,7 @@ function ProtectedRoute({ children }) {
   const location = useLocation()
 
   if (loading) {
-    return (
-      <div className="text-center p-4" style={{ marginTop: 80 }}>
-        <div className="spinner"></div>
-        <p>Loading...</p>
-      </div>
-    )
+    return <div className="loading">Wird geladen …</div>
   }
 
   if (!user) {
@@ -79,19 +75,40 @@ function AppRoutes() {
 
 function AppContent() {
   const { user } = useAuth()
+  const location = useLocation()
+  // Schublade des Menues auf dem Handy; auf dem Desktop steht das Menue fest und menuOpen bleibt ohne Wirkung
+  const [menuOpen, setMenuOpen] = useState(false)
+  const open = useCallback(() => setMenuOpen(true), [])
+  const close = useCallback(() => setMenuOpen(false), [])
+
+  // Seitenwechsel (nur der Pfad, nicht ?woid= oder ?tab=): Schublade zu und wieder nach oben
+  useEffect(() => {
+    setMenuOpen(false)
+    window.scrollTo(0, 0)
+  }, [location.pathname])
+
+  // Esc schliesst die Schublade, nur solange sie offen ist
+  useEffect(() => {
+    if (!menuOpen) return undefined
+    const onKey = (e) => { if (e.key === 'Escape') setMenuOpen(false) }
+    document.addEventListener('keydown', onKey)
+    return () => document.removeEventListener('keydown', onKey)
+  }, [menuOpen])
 
   if (!user) {
     return <AppRoutes />
   }
 
   return (
-    <div className="app-shell">
-      <Sidebar />
-      <div className="app-main">
-        <div className="app-scroll">
-          <AppRoutes />
+    <div className={`shell${menuOpen ? ' menu-open' : ''}`}>
+      <Sidebar onNavigate={close} />
+      <div className="scrim" onClick={close} />
+      <div className="main">
+        <div className="mobile-bar">
+          <Link className="brand" to="/tickets"><Logo />WEBklar</Link>
+          <button type="button" className="btn btn-quiet" onClick={open} aria-expanded={menuOpen} aria-controls="menue">Menü</button>
         </div>
-        <Footer />
+        <main id="inhalt"><AppRoutes /></main>
       </div>
     </div>
   )
diff --git a/src/components/Footer.jsx b/src/components/Footer.jsx
deleted file mode 100644
index f3925d3..0000000
--- a/src/components/Footer.jsx
+++ /dev/null
@@ -1,9 +0,0 @@
-export default function Footer() {
-  return (
-    <footer className="footer">
-      <p className="faint" style={{ fontSize: 13, margin: 0 }}>
-        Webklar Ticket-Plattform · © {new Date().getFullYear()}
-      </p>
-    </footer>
-  )
-}
diff --git a/src/components/Logo.jsx b/src/components/Logo.jsx
new file mode 100644
index 0000000..4b6b13a
--- /dev/null
+++ b/src/components/Logo.jsx
@@ -0,0 +1,17 @@
+// WEBklar-Zeichen (Ellipse mit Stern); Pfade aus dem Prototyp. Die Groesse setzen im Menue und auf der Anmeldung die Stile
+// (.brand svg, .login-box svg), size gilt, wo keine Regel greift.
+export default function Logo({ size = 24 }) {
+  return (
+    <svg viewBox="0 0 512 512" width={size} height={size} aria-hidden="true">
+      <g transform="translate(256 256) scale(0.98) translate(-256 -256)">
+        <ellipse cx="256" cy="256" rx="210" ry="150" fill="#111" transform="rotate(-28 256 256)" />
+        <circle cx="356" cy="172" r="18" fill="#fff" />
+        <path
+          transform="translate(256 256) rotate(-28)"
+          d="M 0,-170 C 22,-105 60,-72 120,-56 C 60,-40 22,-8 0,64 C -22,-8 -60,-40 -120,-56 C -60,-72 -22,-105 0,-170 Z"
+          fill="#fff"
+        />
+      </g>
+    </svg>
+  )
+}
diff --git a/src/components/Navbar.jsx b/src/components/Navbar.jsx
index 7ff77e8..774454a 100644
--- a/src/components/Navbar.jsx
+++ b/src/components/Navbar.jsx
@@ -1,52 +1,16 @@
 import { useEffect, useState } from 'react'
 import { Link, useLocation, useNavigate } from 'react-router-dom'
 import { useAuth } from '../context/AuthContext'
-import {
-  IconTicket,
-  IconUsers,
-  IconTargetArrow,
-  IconReportMoney,
-  IconScale,
-  IconActivityHeartbeat,
-  IconFolders,
-  IconLayoutGrid,
-  IconCalendar,
-  IconSettings,
-  IconLogout,
-  IconLayoutSidebarLeftCollapse,
-  IconLayoutSidebarLeftExpand,
-  IconMessages,
-  IconReceiptRefund,
-  IconDiscount,
-  IconMailCog,
-} from '@tabler/icons-react'
+import Logo from './Logo'
 import { serverpulsApi } from '../lib/serverpulsApi'
-import { startsCollapsed } from '../lib/sidebar'
 import { buildNavLinks } from '../lib/navLinks'
 import { useSidebarCounts } from '../hooks/useSidebarCounts'
 
-const ICONS = {
-  tickets: <IconTicket />,
-  planboard: <IconCalendar />,
-  projects: <IconFolders />,
-  services: <IconLayoutGrid />,
-  customers: <IconUsers />,
-  chat: <IconMessages />,
-  gutschriften: <IconReceiptRefund />,
-  angebote: <IconDiscount />,
-  speicher: <IconMailCog />,
-  leads: <IconTargetArrow />,
-  finance: <IconReportMoney />,
-  legal: <IconScale />,
-  serverpuls: <IconActivityHeartbeat />,
-  admin: <IconSettings />,
-}
-
-export default function Sidebar() {
+// Seitenmenue als reine Textliste. onNavigate schliesst die Schublade auf dem Handy (App.jsx).
+export default function Sidebar({ onNavigate }) {
   const { user, logout, isAdmin } = useAuth()
   const navigate = useNavigate()
   const location = useLocation()
-  const [collapsed, setCollapsed] = useState(() => startsCollapsed())
   const [pulseLevel, setPulseLevel] = useState('ok')
   const counts = useSidebarCounts()
 
@@ -69,7 +33,7 @@ export default function Sidebar() {
     navigate('/login')
   }
 
-  // Eintraege und Unterpunkte (Kunden -> Chat) aus lib/navLinks.js, Icons ueber key
+  // Eintraege und Unterpunkte (Kunden -> Chat) aus lib/navLinks.js
   const links = buildNavLinks({ isAdmin, pulseLevel, counts })
 
   const isActive = (href) =>
@@ -78,79 +42,51 @@ export default function Sidebar() {
   const isLinkActive = (link) => isActive(link.href) || (link.also ? isActive(link.also) : false)
 
   return (
-    <aside className={`side ${collapsed ? 'collapsed' : ''}`}>
-      <div className="side-head">
-        <Link to="/" className="side-logo" title="Webklar">W</Link>
-        <div className="side-brand">
-          Webklar
-          <small>Ticket-Plattform</small>
-        </div>
-      </div>
+    <aside className="sidebar" id="menue">
+      <Link className="brand" to="/tickets" onClick={onNavigate}><Logo />WEBklar</Link>
 
-      <nav className="side-nav">
-        <div className="side-group">
-          {links.map((link) => link.paused ? (
-            <span
-              key={link.href}
-              className="side-link side-link-paused"
-              title={`${link.label} (pausiert)`}
-              aria-disabled="true"
-            >
-              {ICONS[link.key]}
-              <span className="side-link-label">{link.label}</span>
+      <nav className="nav">
+        {links.flatMap((link) => [
+          link.paused ? (
+            <span key={link.href} className="nav-item paused" aria-disabled="true">
+              {link.label}
+              <span className="nav-count">pausiert</span>
             </span>
           ) : (
             <Link
               key={link.href}
               to={link.href}
-              className={`side-link ${isLinkActive(link) ? 'active' : ''}`}
-              title={link.label}
+              className={`nav-item${isLinkActive(link) ? ' active' : ''}`}
+              onClick={onNavigate}
             >
-              {ICONS[link.key]}
-              <span className="side-link-label">{link.label}</span>
+              {link.label}
               {link.dot && link.dot !== 'ok' && (
                 <span
-                  className={`side-dot side-dot-${link.dot}`}
+                  className={`nav-dot${link.dot === 'critical' ? ' critical' : ''}`}
                   data-testid="sp-nav-dot"
                   title={link.dot === 'critical' ? 'Critical-Warnung aktiv' : 'Warnung aktiv'}
                 />
               )}
             </Link>
-          )).flatMap((item, i) => [
-            item,
-            ...(links[i].children || []).map((child) => (
-              <Link
-                key={child.href}
-                to={child.href}
-                className={`side-link side-sublink ${isActive(child.href) ? 'active' : ''}`}
-                title={child.count > 0 ? `${child.label} (${child.count} ${child.key === 'chat' ? 'ungelesen' : 'offen'})` : child.label}
-              >
-                {ICONS[child.key]}
-                <span className="side-link-label">{child.label}</span>
-                {child.count > 0 && <span className="side-count">{child.count}</span>}
-              </Link>
-            )),
-          ])}
-        </div>
+          ),
+          ...(link.children || []).map((child) => (
+            <Link
+              key={child.href}
+              to={child.href}
+              className={`nav-item sub${isActive(child.href) ? ' active' : ''}`}
+              title={child.count > 0 ? `${child.label} (${child.count} ${child.key === 'chat' ? 'ungelesen' : 'offen'})` : undefined}
+              onClick={onNavigate}
+            >
+              {child.label}
+              {child.count > 0 && <span className={`nav-count${child.hot ? ' hot' : ''}`}>{child.count}</span>}
+            </Link>
+          )),
+        ])}
       </nav>
 
-      <div className="side-foot">
-        {user && (
-          <div className="side-link" title={user.name || user.email} style={{ cursor: 'default' }}>
-            <div className="side-logo" style={{ width: 28, height: 28, fontSize: 12, background: 'linear-gradient(135deg,#667eea,#764ba2)' }}>
-              {(user.name || user.email || '?').charAt(0).toUpperCase()}
-            </div>
-            <span className="side-link-label text-ellipsis">{user.name || user.email}</span>
-          </div>
-        )}
-        <button className="side-toggle" onClick={handleLogout} title="Logout">
-          <IconLogout size={20} />
-          <span className="side-link-label">Logout</span>
-        </button>
-        <button className="side-toggle" onClick={() => setCollapsed((c) => !c)} title="Menue ein-/ausklappen">
-          {collapsed ? <IconLayoutSidebarLeftExpand size={20} /> : <IconLayoutSidebarLeftCollapse size={20} />}
-          <span className="side-link-label">Einklappen</span>
-        </button>
+      <div className="sidebar-foot">
+        {user && <span className="who text-ellipsis">{user.name || user.email}</span>}
+        <button type="button" className="link" onClick={handleLogout}>Abmelden</button>
       </div>
     </aside>
   )
diff --git a/src/lib/navLinks.js b/src/lib/navLinks.js
index 7f77d2c..a96c9c5 100644
--- a/src/lib/navLinks.js
+++ b/src/lib/navLinks.js
@@ -1,5 +1,5 @@
-// Eintraege der Sidebar als reine Daten (unter Node testbar); Navbar.jsx ordnet die Icons ueber key zu.
-// Unterpunkte (children) erscheinen eingerueckt unter ihrem Eintrag, count zeigt eine Zahl (nur > 0).
+// Eintraege der Sidebar als reine Daten (unter Node testbar).
+// Unterpunkte (children) erscheinen eingerueckt unter ihrem Eintrag, count zeigt eine Zahl (nur > 0), hot hebt die Zahl farbig hervor.
 
 export function buildNavLinks({ isAdmin, pulseLevel, counts = {} }) {
   return [
@@ -13,7 +13,7 @@ export function buildNavLinks({ isAdmin, pulseLevel, counts = {} }) {
       href: '/customers',
       // Bereiche aus dem frueheren Admin-Panel; Zahlen: ungelesene Chats, offene Gutschriften, offene Speicher-Aufgaben
       children: [
-        { key: 'chat', label: 'Chat', href: '/customers/chat', count: counts.chat ?? 0 },
+        { key: 'chat', label: 'Chat', href: '/customers/chat', count: counts.chat ?? 0, hot: true },
         { key: 'gutschriften', label: 'Gutschriften', href: '/customers/gutschriften', count: counts.credits ?? 0 },
         { key: 'angebote', label: 'Abo-Angebote', href: '/customers/angebote' },
         { key: 'speicher', label: 'E-Mail-Speicher', href: '/customers/email-speicher', count: counts.storage ?? 0 },
diff --git a/src/lib/sidebar.js b/src/lib/sidebar.js
deleted file mode 100644
index 5ab119b..0000000
--- a/src/lib/sidebar.js
+++ /dev/null
@@ -1,12 +0,0 @@
-// Seitenmenue: auf schmalen Bildschirmen (Handy) startet es eingeklappt, sonst bleiben vom Inhalt bei 390 px nur
-// etwa 140 px und jede Seite scrollt waagerecht. Ausklappen geht weiterhin per Knopf.
-export const AUTO_COLLAPSE_MAX_WIDTH = 720
-
-/** true, wenn das Menue eingeklappt starten soll (Fensterbreite bis 720 px); ohne window (Test, Server) false. */
-export function startsCollapsed(win = typeof window !== 'undefined' ? window : null) {
-  try {
-    return Boolean(win?.matchMedia?.(`(max-width: ${AUTO_COLLAPSE_MAX_WIDTH}px)`)?.matches)
-  } catch {
-    return false
-  }
-}
diff --git a/src/pages/AdminPage.jsx b/src/pages/AdminPage.jsx
index 939df38..12befa6 100644
--- a/src/pages/AdminPage.jsx
+++ b/src/pages/AdminPage.jsx
@@ -51,13 +51,13 @@ export default function AdminPage() {
 
   if (!isAdmin) {
     return (
-      <main className="page admin-page">
+      <div className="page admin-page">
         <section className="admin-access-denied">
           <span>403</span>
           <h1>Zugriff verweigert</h1>
           <p>Für diesen Bereich ist ein Admin-Account erforderlich.</p>
         </section>
-      </main>
+      </div>
     )
   }
 
@@ -121,7 +121,7 @@ export default function AdminPage() {
   }
 
   return (
-    <main className="page admin-page">
+    <div className="page admin-page">
       <header className="admin-header">
         <div>
           <span className="admin-eyebrow">Systemverwaltung</span>
@@ -222,6 +222,6 @@ export default function AdminPage() {
           </div>
         </section>
       )}
-    </main>
+    </div>
   )
 }
diff --git a/src/pages/ProjectsPage.jsx b/src/pages/ProjectsPage.jsx
index 053f787..57c1b94 100644
--- a/src/pages/ProjectsPage.jsx
+++ b/src/pages/ProjectsPage.jsx
@@ -369,7 +369,7 @@ export default function ProjectsPage() {
   const typeOptions = Object.entries(TYPES).filter(([, meta]) => isAdmin || !meta.adminOnly)
 
   return (
-    <div className="main-content">
+    <div className="page">
       <header className="text-center mb-2">
         <h2>Website-Projekte</h2>
       </header>
diff --git a/src/styles/global.css b/src/styles/global.css
index f1bd0ef..cb53fbb 100644
--- a/src/styles/global.css
+++ b/src/styles/global.css
@@ -131,6 +131,7 @@ fieldset:disabled { opacity: 1; }
 .nav-item.paused:hover { background: none; color: var(--text-3); }
 .nav-count { font-size: 12px; color: var(--text-3); font-variant-numeric: tabular-nums; }
 .nav-count.hot { color: var(--accent-ink); font-weight: 600; }
+.nav-item.active .nav-count:not(.hot) { color: var(--text-2); } /* auf der grauen Markierung reicht --text-3 nicht (2,7:1) */
 .nav-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--nav-dot); }
 .nav-dot.critical { background: var(--danger); }
 
@@ -143,6 +144,7 @@ fieldset:disabled { opacity: 1; }
   gap: 2px;
 }
 .sidebar-foot .who { font-weight: 500; }
+.sidebar-foot .link { align-self: flex-start; } /* Knopf statt Link: sonst steht "Abmelden" mittig in der vollen Breite */
 
 .main { flex: 1; margin-left: var(--sidebar-w); min-width: 0; }
 
@@ -482,14 +484,6 @@ a.list-row:hover .cell-title { color: var(--accent-ink); }
 }
 /* NEU-ENDE */
 
-/* Layout */
-.main-content {
-  padding: var(--sp-5);
-  max-width: 1320px;
-  margin: 0 auto;
-  width: 100%;
-}
-
 /* Utilities */
 .text-center { text-align: center; }
 
@@ -515,11 +509,6 @@ a.list-row:hover .cell-title { color: var(--accent-ink); }
 /* ===================  REDESIGN (Designsystem)  =============== */
 /* ============================================================= */
 
-/* --- App-Shell --- */
-.app-shell { display: flex; height: 100vh; overflow: hidden; }
-.app-main { flex: 1; min-width: 0; display: flex; flex-direction: column; overflow: hidden; }
-.app-scroll { flex: 1; overflow-y: auto; }
-
 /* --- Page header + container --- */
 .page-header {
   display: flex; align-items: flex-start; justify-content: space-between;
@@ -1110,53 +1099,6 @@ select.form-control {
   border-radius: var(--radius); background: var(--grey-bg); color: var(--grey-fg); font-weight: 600;
 }
 
-/* Altes Menue (Navbar.jsx) unveraendert aus dem Altbestand: Task 5 ersetzt das Menue und loescht diesen Teil. Ohne ihn faellt das */
-/* Alt-Geruest (.app-shell) zusammen; .side.collapsed gilt auf dem Handy (lib/sidebar.js). */
-.side {
-  width: var(--sidebar-w);
-  flex-shrink: 0;
-  background: linear-gradient(180deg, var(--surface-1), var(--bg));
-  border-right: 1px solid var(--border);
-  display: flex;
-  flex-direction: column;
-  transition: width 0.2s ease;
-}
-.side.collapsed { width: 72px; }
-.side-head {
-  display: flex; align-items: center; gap: var(--sp-3);
-  padding: var(--sp-4); border-bottom: 1px solid var(--border);
-  min-height: 64px;
-}
-.side-brand { font-weight: 800; font-size: 16px; letter-spacing: 0.2px; white-space: nowrap; }
-.side-brand small { display: block; font-weight: 500; font-size: 11px; color: var(--text-muted); }
-.side-nav { flex: 1; overflow-y: auto; padding: var(--sp-3) var(--sp-2); }
-.side-group { margin-bottom: var(--sp-4); }
-.side.collapsed .side-link-label,
-.side.collapsed .side-brand { display: none; }
-.side-link {
-  display: flex; align-items: center; gap: var(--sp-3);
-  padding: 10px var(--sp-3); margin: 2px var(--sp-1);
-  border-radius: var(--r-sm); color: var(--text-muted);
-  text-decoration: none; transition: all 0.15s ease; white-space: nowrap;
-}
-.side-link svg { width: 20px; height: 20px; flex-shrink: 0; }
-.side-link:hover { background: var(--surface-2); color: var(--text); }
-.side-link-paused, .side-link-paused:hover { opacity: 0.45; cursor: not-allowed; background: transparent; color: var(--text-muted); }
-.side-link.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
-.side-sublink { padding-left: calc(var(--sp-3) + 18px); font-size: 13.5px; }
-.side-sublink svg { width: 17px; height: 17px; }
-.side.collapsed .side-sublink { padding-left: var(--sp-3); }
-.side.collapsed .side-count { position: absolute; margin: -18px 0 0 14px; min-width: 16px; padding: 0 4px; font-size: 10px; line-height: 16px; }
-.side.collapsed .side-sublink { position: relative; }
-.side-link.active svg { color: var(--accent); }
-.side-foot { border-top: 1px solid var(--border); padding: var(--sp-3); }
-.side-toggle {
-  background: transparent; border: none; color: var(--text-muted);
-  cursor: pointer; padding: var(--sp-2); border-radius: var(--r-sm);
-  display: flex; align-items: center; gap: var(--sp-2); width: 100%;
-}
-.side-toggle:hover { background: var(--surface-2); color: var(--text); }
-
 /* Neutral: Karte, Raster, Aufklappmenue */
 .card { margin-bottom: 16px; background: none; border: 0; border-radius: 0; color: var(--text); }
 .card-header { padding: 0 0 8px; background: none; border-bottom: 1px solid var(--line); color: var(--text); font-weight: 600; }
@@ -1179,7 +1121,7 @@ div.row { display: flex; flex-wrap: wrap; margin: 0 -8px; }
 .spinner { width: 40px; height: 40px; margin: 0 auto; border: 4px solid var(--line); border-top-color: var(--text-2); border-radius: 50%; animation: spin 1s linear infinite; }
 
 /* Verschachtelte Seiten: Abstand und Breite des inneren Rahmens entfallen */
-.page .page, .page .main-content { margin: 0; padding: 0; max-width: none; }
+.page .page { margin: 0; padding: 0; max-width: none; }
 
 /* Links in Bestandsklassen, die bisher --accent als Farbe nutzten: feiner Unterstrich */
 .fin-link, .legal-files a, .credit-cols a, .area-rows a {
diff --git a/src/styles/serverpuls.css b/src/styles/serverpuls.css
index b4f8359..15e4756 100644
--- a/src/styles/serverpuls.css
+++ b/src/styles/serverpuls.css
@@ -66,9 +66,3 @@
 .sp-cleanup-grid strong { font-size: 20px; }
 .sp-cleanup-list { list-style: none; margin: var(--sp-3) 0; padding: 0; }
 .sp-cleanup-list li { display: flex; justify-content: space-between; padding: 4px 0; border-bottom: 1px solid var(--border); font-size: 14px; }
-
-.side-dot { width: 8px; height: 8px; border-radius: 50%; margin-left: auto; flex-shrink: 0; }
-.side-dot-medium { background: #f59e0b; }
-.side-dot-critical { background: #ef4444; }
-.side.collapsed .side-dot { position: absolute; margin: 0; transform: translate(12px, -10px); }
-.side-link { position: relative; }
diff --git a/tests/unit/navLinks.test.mjs b/tests/unit/navLinks.test.mjs
index 6f03916..b9a7d62 100644
--- a/tests/unit/navLinks.test.mjs
+++ b/tests/unit/navLinks.test.mjs
@@ -17,6 +17,7 @@ test('buildNavLinks: vier Unterpunkte unter Kunden mit Zahlen, Admin-Eintraege n
   ])
   assert.deepEqual(links.map((l) => l.key), ['tickets', 'planboard', 'projects', 'services', 'customers', 'leads', 'legal'])
   assert.equal(links.find((l) => l.key === 'leads').paused, true)
+  assert.equal(kunden.children.find((c) => c.key === 'chat').hot, true)
   const admin = buildNavLinks({ isAdmin: true, pulseLevel: 'warn', counts: {} })
   assert.deepEqual(admin.map((l) => l.key), ['tickets', 'planboard', 'projects', 'services', 'customers', 'leads', 'finance', 'legal', 'serverpuls', 'admin'])
   assert.equal(admin.find((l) => l.key === 'serverpuls').dot, 'warn')
diff --git a/tests/unit/sidebar.test.mjs b/tests/unit/sidebar.test.mjs
deleted file mode 100644
index 7f832ce..0000000
--- a/tests/unit/sidebar.test.mjs
+++ /dev/null
@@ -1,27 +0,0 @@
-import test from 'node:test'
-import assert from 'node:assert/strict'
-import { loadModule } from './load.mjs'
-
-const { startsCollapsed, AUTO_COLLAPSE_MAX_WIDTH } = await loadModule('src/lib/sidebar.js')
-
-// Fenster mit matchMedia, das "(max-width: Npx)" gegen eine feste Breite prueft
-const windowOf = (width) => ({
-  matchMedia: (query) => ({ matches: width <= Number(/max-width:\s*(\d+)px/.exec(query)?.[1]) }),
-})
-
-test('startsCollapsed: Handy (390 px) und Grenze (720 px) starten eingeklappt', () => {
-  assert.equal(AUTO_COLLAPSE_MAX_WIDTH, 720)
-  assert.equal(startsCollapsed(windowOf(390)), true)
-  assert.equal(startsCollapsed(windowOf(720)), true)
-})
-
-test('startsCollapsed: breitere Fenster starten ausgeklappt', () => {
-  assert.equal(startsCollapsed(windowOf(721)), false)
-  assert.equal(startsCollapsed(windowOf(1280)), false)
-})
-
-test('startsCollapsed: ohne window oder matchMedia (oder bei Fehler) ausgeklappt', () => {
-  assert.equal(startsCollapsed(null), false)
-  assert.equal(startsCollapsed({}), false)
-  assert.equal(startsCollapsed({ matchMedia: () => { throw new Error('kaputt') } }), false)
-})