diff --git a/.gitignore b/.gitignore
index d45a107..fe318b2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 node_modules/
+.dev-runner.lock
 release/
 .artifacts/
 __pycache__/
diff --git a/lib/startup-renderer.js b/lib/startup-renderer.js
index deded51..8b6722f 100644
--- a/lib/startup-renderer.js
+++ b/lib/startup-renderer.js
@@ -1,5 +1,5 @@
 function configureStartupRenderer(app) {
-  app.disableHardwareAcceleration();
+  return app;
 }
 
 function createStartupWindow(BrowserWindow, options) {
diff --git a/main.js b/main.js
index c2c63ba..118bcb2 100644
--- a/main.js
+++ b/main.js
@@ -1358,6 +1358,7 @@ async function runHosterHealthCheck(config, requestedChecks) {
 
 function createWindow() {
   const startupWindow = createStartupWindow(BrowserWindow, {
+    title: 'Multi Hoster Uploader',
     width: 1100,
     height: 750,
     minWidth: 800,
diff --git a/package-lock.json b/package-lock.json
index b6c33a3..e06ebe2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "multi-hoster-uploader",
-  "version": "2.0.7",
+  "version": "2.1.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "multi-hoster-uploader",
-      "version": "2.0.7",
+      "version": "2.1.0",
       "dependencies": {
         "chokidar": "^3.6.0",
         "undici": "^7.29.0",
diff --git a/package.json b/package.json
index 9b0f19d..3c4192f 100644
--- a/package.json
+++ b/package.json
@@ -1,10 +1,11 @@
 {
   "name": "multi-hoster-uploader",
-  "version": "2.0.7",
+  "version": "2.1.0",
   "description": "Upload files to doodstream, voe, vidmoly, byse simultaneously",
   "main": "main.js",
   "scripts": {
     "start": "electron .",
+    "dev": "node scripts/dev-runner.cjs",
     "test": "node --test tests/*.test.js tests/ui-smoke.js",
     "test:backup-api": "npm --prefix services/backup-api test",
     "lint": "eslint .",
diff --git a/renderer/app.js b/renderer/app.js
index ed77095..e073dbf 100644
--- a/renderer/app.js
+++ b/renderer/app.js
@@ -526,13 +526,26 @@ function _isHistoryTabActive() {
     const nextView = viewsById[`${tab.dataset.view}-view`];
     if (nextView) nextView.classList.add('active');
     activeTab = tab;
+    syncTabIndicator(tab);
     if (tab.dataset.view === 'history' && (_historyDirty || !_historyEverLoaded)) {
       loadHistory();
     }
   };
 
   const tabBar = tabs[0] && tabs[0].parentElement;
+  const tabIndicator = tabBar?.querySelector('.tab-indicator');
+  function syncTabIndicator(tab) {
+    if (!tabIndicator || !tab) return;
+    tabIndicator.style.width = `${tab.offsetWidth}px`;
+    tabIndicator.style.transform = `translateX(${tab.offsetLeft}px)`;
+  }
   if (tabBar) {
+    if (tabIndicator) {
+      tabIndicator.style.transition = 'none';
+      syncTabIndicator(activeTab);
+      requestAnimationFrame(() => { tabIndicator.style.transition = ''; });
+      window.addEventListener('resize', () => syncTabIndicator(activeTab));
+    }
     tabBar.addEventListener('click', (e) => handle(e.target));
     tabBar.addEventListener('keydown', (e) => {
       if (!['ArrowLeft', 'ArrowRight', 'Home', 'End'].includes(e.key)) return;
@@ -562,19 +575,45 @@ function initMenuBar() {
   menuBar.querySelectorAll('[data-menu-dropdown]').forEach(d => { dropdowns[d.dataset.menuDropdown] = d; });
   const triggers = {};
   menuBar.querySelectorAll('[data-menu-trigger]').forEach(t => { triggers[t.dataset.menuTrigger] = t; });
+  const panelTokens = new WeakMap();
+
+  function openPanel(panel) {
+    if (!panel) return;
+    panelTokens.set(panel, (panelTokens.get(panel) || 0) + 1);
+    panel.classList.remove('menu-closing', 'menu-opening');
+    panel.style.display = '';
+    void panel.offsetHeight;
+    panel.classList.add('menu-opening');
+  }
+
+  function closePanel(panel) {
+    if (!panel || window.getComputedStyle(panel).display === 'none') return;
+    const token = (panelTokens.get(panel) || 0) + 1;
+    panelTokens.set(panel, token);
+    panel.classList.remove('menu-opening', 'menu-closing');
+    void panel.offsetHeight;
+    panel.classList.add('menu-closing');
+    const finish = () => {
+      if (panelTokens.get(panel) !== token) return;
+      panel.style.display = 'none';
+      panel.classList.remove('menu-closing');
+    };
+    panel.addEventListener('animationend', finish, { once: true });
+    setTimeout(finish, 220);
+  }
 
   function closeMenus() {
     openMenu = null;
-    for (const k in dropdowns) dropdowns[k].style.display = 'none';
+    for (const k in dropdowns) closePanel(dropdowns[k]);
     for (const k in triggers) triggers[k].classList.remove('open');
-    menuBar.querySelectorAll('.menu-submenu-dropdown').forEach(s => { s.style.display = 'none'; });
+    menuBar.querySelectorAll('.menu-submenu-dropdown').forEach(closePanel);
   }
 
   function openMenuNamed(name) {
     if (openMenu === name) return;
     closeMenus();
     openMenu = name;
-    if (dropdowns[name]) dropdowns[name].style.display = '';
+    openPanel(dropdowns[name]);
     if (triggers[name]) triggers[name].classList.add('open');
     if (name === 'einstellungen') _syncMenuSettings();
   }
@@ -590,8 +629,8 @@ function initMenuBar() {
 
   menuBar.querySelectorAll('.menu-submenu').forEach(sm => {
     const sub = sm.querySelector('.menu-submenu-dropdown');
-    sm.addEventListener('mouseenter', () => { if (sub) sub.style.display = ''; });
-    sm.addEventListener('mouseleave', () => { if (sub) sub.style.display = 'none'; });
+    sm.addEventListener('mouseenter', () => openPanel(sub));
+    sm.addEventListener('mouseleave', () => closePanel(sub));
   });
 
   menuBar.querySelectorAll('[data-menu-action]').forEach(item => {
@@ -3544,6 +3583,33 @@ function renderHealthCheckResults(_results) {
   if (container) container.innerHTML = '';
 }
 
+let _appAlertResolve = null;
+
+function closeAppAlert() {
+  const modal = document.getElementById('appAlertModal');
+  if (!modal) return;
+  modal.style.display = 'none';
+  modal.setAttribute('aria-hidden', 'true');
+  const resolve = _appAlertResolve;
+  _appAlertResolve = null;
+  if (resolve) resolve();
+}
+
+function showAppAlert(message, title = 'Hinweis') {
+  const modal = document.getElementById('appAlertModal');
+  const titleEl = document.getElementById('appAlertTitle');
+  const messageEl = document.getElementById('appAlertMessage');
+  const confirm = document.getElementById('appAlertConfirmBtn');
+  if (!modal || !titleEl || !messageEl || !confirm) return Promise.resolve();
+  if (_appAlertResolve) closeAppAlert();
+  titleEl.textContent = title;
+  messageEl.textContent = String(message || '');
+  modal.style.display = 'flex';
+  modal.setAttribute('aria-hidden', 'false');
+  confirm.focus();
+  return new Promise(resolve => { _appAlertResolve = resolve; });
+}
+
 async function executeHealthCheck(hosters, _mode) {
   renderHealthCheckResults([]);
   const result = await window.api.runHealthCheck({ hosters });
@@ -3578,7 +3644,7 @@ async function runHealthCheck(mode = 'manual', requestedHosters = null) {
       .map(({ name, account }) => ({ hoster: name, accountId: account.id }));
   }
   if (hosters.length === 0) {
-    if (mode === 'manual') alert('Keine Hoster mit Zugangsdaten für einen Check.');
+    if (mode === 'manual') await showAppAlert('Keine Hoster mit Zugangsdaten für einen Check.');
     return [];
   }
   healthCheckRunning = true;
@@ -3662,7 +3728,7 @@ function renderSettings() {
       <div class="settings-search-wrap">
         <label for="settingsSearchInput">Schnell finden</label>
         <div class="settings-search-control">
-          <span class="settings-search-icon" aria-hidden="true">⌕</span>
+          <span class="settings-search-icon" aria-hidden="true"><svg viewBox="0 0 24 24" focusable="false"><circle cx="10.8" cy="10.8" r="5.8"></circle><path d="m15.2 15.2 4.3 4.3"></path></svg></span>
           <input type="search" id="settingsSearchInput" placeholder="Einstellungen durchsuchen" autocomplete="off" spellcheck="false">
         </div>
       </div>
@@ -3750,15 +3816,19 @@ function renderSettings() {
   pages.automatik.innerHTML = `
       ${pageHeader('Automatik', 'Wiederholungen und überwachte Ordner für unbeaufsichtigte Uploads.')}
       <div class="settings-section-label">Unbeaufsichtigter Betrieb</div>
-      <div class="settings-row">
+      <div class="settings-row automation-retry-row">
         <label for="autoRetryRoundsInput">Automatische Wiederholungsrunden</label>
-        <input type="number" class="hs-input settings-autosave" id="autoRetryRoundsInput" min="0" max="5" value="${Number(globalSettings.autoRetryRounds) || 0}">
-        <span class="hint">0 = aus. Nach Batch-Ende werden transiente Fehler (Netzwerk, Hoster-Flake) automatisch bis zu N Runden neu versucht.</span>
+        <div class="automation-retry-control">
+          <input type="number" class="hs-input settings-autosave" id="autoRetryRoundsInput" min="0" max="5" value="${Number(globalSettings.autoRetryRounds) || 0}">
+          <span class="hint">0 = aus. Nach Batch-Ende werden transiente Fehler (Netzwerk, Hoster-Flake) automatisch bis zu N Runden neu versucht.</span>
+        </div>
       </div>
-      <div class="settings-row">
+      <div class="settings-row automation-retry-row">
         <label for="autoRetryDelayMinInput">Wartezeit zwischen Runden</label>
-        <input type="number" class="hs-input settings-autosave" id="autoRetryDelayMinInput" min="1" max="120" value="${Number(globalSettings.autoRetryDelayMin) || 5}">
-        <span class="hint">Minuten · jede weitere Runde wartet entsprechend länger</span>
+        <div class="automation-retry-control">
+          <input type="number" class="hs-input settings-autosave" id="autoRetryDelayMinInput" min="1" max="120" value="${Number(globalSettings.autoRetryDelayMin) || 5}">
+          <span class="hint">Minuten · jede weitere Runde wartet entsprechend länger</span>
+        </div>
       </div>
       <div class="settings-section-label">Ordnerüberwachung <span class="panel-status${fm.enabled && fm.folderPath ? ' active' : ''}" id="folderMonitorStatusBadge">${fm.enabled && fm.folderPath ? 'Aktiv' : 'Inaktiv'}</span></div>
       <div class="settings-row">
@@ -5682,9 +5752,11 @@ function _renderHistoryVirtualRows() {
     parts.push(escapeHtml(row.filename));
     parts.push('</td><td class="col-host">');
     parts.push(escapeHtml(row.host));
-    parts.push('</td><td class="col-link">');
+    parts.push('</td><td class="col-link"><div class="history-link-cell"><span class="history-link-text" title="');
+    parts.push(escapeAttr(link));
+    parts.push('">');
     parts.push(escapeHtml(link));
-    parts.push('</td></tr>');
+    parts.push('</span><button class="history-copy-link" type="button" data-copy-link aria-label="Link kopieren" title="Link kopieren">⧉</button></div></td></tr>');
   }
   if (bottomPad > 0) parts.push(`<tr class="virtual-spacer" style="height:${bottomPad}px"><td colspan="4"></td></tr>`);
   tbody.innerHTML = parts.join('');
@@ -5750,6 +5822,13 @@ function renderHistoryTable(container) {
         renderHistoryTable(container);
         return;
       }
+      const copyButton = e.target.closest('.history-copy-link');
+      if (copyButton && container.contains(copyButton)) {
+        const link = copyButton.closest('.history-row')?.dataset.link;
+        if (link) { window.api.copyToClipboard(link); showCopyToast('Link kopiert'); }
+        e.stopPropagation();
+        return;
+      }
       const row = e.target.closest('.history-row');
       if (row && !row.classList.contains('error')) {
         const link = row.dataset.link;
@@ -5971,6 +6050,19 @@ function setupListeners() {
     });
   });
   document.getElementById('saveSettingsBtn').addEventListener('click', saveSettings);
+  document.getElementById('appAlertConfirmBtn').addEventListener('click', closeAppAlert);
+  document.getElementById('appAlertCloseBtn').addEventListener('click', closeAppAlert);
+  document.getElementById('appAlertModal').addEventListener('click', event => {
+    if (event.target.id === 'appAlertModal') closeAppAlert();
+  });
+  document.addEventListener('keydown', event => {
+    const modal = document.getElementById('appAlertModal');
+    if (modal?.style.display !== 'flex') return;
+    if (event.key === 'Escape' || event.key === 'Enter') {
+      event.preventDefault();
+      closeAppAlert();
+    }
+  }, true);
 
   document.getElementById('clearHistoryBtn').addEventListener('click', async () => {
     if (!confirm('Verlauf wirklich löschen?')) return;
diff --git a/renderer/index.html b/renderer/index.html
index ab9b3c5..86424bf 100644
--- a/renderer/index.html
+++ b/renderer/index.html
@@ -4,7 +4,7 @@
   <meta charset="UTF-8">
   <meta http-equiv="Content-Security-Policy" content="default-src 'self'; style-src 'self' 'unsafe-inline';">
   <meta name="theme-color" content="#0f0f0f">
-  <title>Multi-Hoster-Upload</title>
+  <title>Multi Hoster Uploader</title>
   <link rel="stylesheet" href="styles.css">
 </head>
 <body>
@@ -49,6 +49,7 @@
           <svg class="top-nav-icon" aria-hidden="true"><use href="#icon-history"></use></svg>
           <span class="top-nav-label">Verlauf</span>
         </button>
+        <span class="tab-indicator" aria-hidden="true"></span>
       </nav>
     </div>
     <div class="header-spacer" aria-hidden="true"></div>
@@ -128,7 +129,6 @@
         </div>
       </nav>
       <div class="version-badge" title="Installierte Version">
-        <span class="version-monogram" aria-hidden="true">U</span>
         <span class="version-label" id="versionLabel"></span>
       </div>
     </div>
@@ -462,6 +462,22 @@
     </div>
   </div>
 
+  <div class="modal-overlay app-alert-modal" id="appAlertModal" style="display:none" aria-hidden="true">
+    <div class="modal-card" role="dialog" aria-modal="true" aria-labelledby="appAlertTitle" aria-describedby="appAlertMessage" style="width:min(420px,100%)">
+      <div class="modal-header">
+        <div><h3 id="appAlertTitle">Hinweis</h3></div>
+        <button class="icon-btn" id="appAlertCloseBtn" aria-label="Schließen">&times;</button>
+      </div>
+      <div class="modal-body">
+        <p id="appAlertMessage"></p>
+      </div>
+      <div class="modal-footer">
+        <span></span>
+        <button class="btn btn-primary" id="appAlertConfirmBtn">OK</button>
+      </div>
+    </div>
+  </div>
+
   <div id="settings-view" class="view" role="tabpanel" aria-labelledby="settings-tab">
     <div class="settings-container">
       <div class="settings-header">
diff --git a/renderer/styles.css b/renderer/styles.css
index 2ab002d..fe0a761 100644
--- a/renderer/styles.css
+++ b/renderer/styles.css
@@ -869,26 +869,47 @@ body.col-resizing, body.col-resizing * { cursor: col-resize !important; user-sel
   letter-spacing: 0.07em;
   text-transform: uppercase;
 }
-.settings-search-control { position: relative; }
+.settings-search-control {
+  position: relative;
+  display: flex;
+  align-items: center;
+  height: 40px;
+}
 .settings-search-icon {
   position: absolute;
   left: 10px;
   top: 50%;
-  transform: translateY(-52%);
+  width: 14px;
+  height: 14px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  transform: translateY(-50%);
   color: var(--text-dim);
-  font-size: 17px;
   pointer-events: none;
 }
+.settings-search-icon svg {
+  display: block;
+  width: 14px;
+  height: 14px;
+  fill: none;
+  stroke: currentColor;
+  stroke-linecap: round;
+  stroke-linejoin: round;
+  stroke-width: 1.7;
+}
 #settingsSearchInput {
   width: 100%;
-  min-height: 34px;
-  padding: 7px 9px 7px 31px;
+  height: 40px;
+  min-height: 40px;
+  padding: 0 10px 0 32px;
   border: 1px solid var(--border);
   border-radius: 8px;
   background: var(--bg-input);
   color: var(--text);
   font: inherit;
   font-size: 11px;
+  line-height: 18px;
 }
 #settingsSearchInput::placeholder { color: var(--text-dim); }
 #settingsSearchInput:focus { border-color: var(--accent); outline: none; }
@@ -1012,6 +1033,32 @@ select.hs-input { max-width: none; width: auto; min-width: 140px; }
 .settings-subpage .settings-row > label { min-width: 215px; color: var(--text); font-weight: 600; }
 .settings-subpage .settings-row > .key-input { max-width: none; min-width: 180px; }
 .settings-subpage .settings-row > .hint { flex: 1 1 220px; line-height: 1.45; }
+.settings-subpage .automation-retry-row {
+  display: grid;
+  grid-template-columns: 200px minmax(0, 1fr);
+  align-items: start;
+  column-gap: 10px;
+}
+.settings-subpage .automation-retry-row > label {
+  min-width: 0;
+  padding-top: 9px;
+}
+.settings-subpage .automation-retry-control {
+  display: grid;
+  justify-items: start;
+  gap: 8px;
+  min-width: 0;
+}
+.settings-subpage .automation-retry-control > .hs-input {
+  width: 100px;
+  min-width: 0;
+  max-width: none;
+}
+.settings-subpage .automation-retry-control > .hint {
+  margin: 0;
+  padding-left: 0;
+  line-height: 1.45;
+}
 .settings-subpage .settings-row-wide { flex-wrap: wrap; }
 .settings-subpage .settings-row-wide > .hint { flex-basis: calc(100% - 223px); margin-left: 223px; }
 .settings-section-label {
@@ -1404,6 +1451,38 @@ select.hs-input { max-width: none; width: auto; min-width: 140px; }
   white-space: nowrap;
   max-width: 300px;
 }
+.history-link-cell {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  min-width: 0;
+}
+.history-link-text {
+  min-width: 0;
+  flex: 1 1 auto;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+.history-copy-link {
+  flex: 0 0 auto;
+  width: 18px;
+  height: 18px;
+  padding: 0;
+  border: 1px solid var(--border);
+  border-radius: 4px;
+  background: var(--bg-secondary);
+  color: var(--text-muted);
+  font-size: 12px;
+  line-height: 16px;
+  cursor: pointer;
+}
+.history-copy-link:hover,
+.history-copy-link:focus-visible {
+  color: var(--text);
+  border-color: var(--accent);
+  background: var(--bg-hover);
+}
 
 .empty-state { color: var(--text-dim); text-align: center; padding: 40px; font-size: 14px; }
 
@@ -1521,6 +1600,18 @@ select.hs-input { max-width: none; width: auto; min-width: 140px; }
     animation-duration: 0.01ms !important;
     animation-iteration-count: 1 !important;
   }
+
+  .tab-indicator {
+    transition-duration: 280ms !important;
+  }
+
+  .menu-opening {
+    animation-duration: 180ms !important;
+  }
+
+  .menu-closing {
+    animation-duration: 160ms !important;
+  }
 }
 
 .online-backup-panel {
@@ -1694,7 +1785,7 @@ select.hs-input { max-width: none; width: auto; min-width: 140px; }
   padding: 0;
   border: 0;
   background: transparent;
-  position: static;
+  position: relative;
 }
 
 .tab {
@@ -1723,6 +1814,18 @@ select.hs-input { max-width: none; width: auto; min-width: 140px; }
   background: var(--bg-active);
 }
 
+.tab-indicator {
+  position: absolute;
+  left: 0;
+  bottom: 0;
+  width: 0;
+  height: 2px;
+  border-radius: 2px 2px 0 0;
+  background: var(--accent);
+  pointer-events: none;
+  transition: transform .2s cubic-bezier(.2, .8, .2, 1), width .2s cubic-bezier(.2, .8, .2, 1);
+}
+
 .top-nav-icon,
 .header-action-icon,
 .view-sidebar-icon,
@@ -1870,6 +1973,30 @@ select.hs-input { max-width: none; width: auto; min-width: 140px; }
   box-shadow: 0 18px 38px rgba(0, 0, 0, .38);
 }
 
+.menu-dropdown,
+.menu-submenu-dropdown {
+  transform-origin: top;
+}
+
+.menu-opening {
+  animation: menu-unfold 180ms cubic-bezier(.2, .8, .2, 1) both;
+}
+
+.menu-closing {
+  pointer-events: none;
+  animation: menu-fold 160ms cubic-bezier(.4, 0, .8, .2) both;
+}
+
+@keyframes menu-unfold {
+  from { opacity: .35; clip-path: inset(0 0 100% 0); transform: scaleY(.96); }
+  to { opacity: 1; clip-path: inset(0); transform: scaleY(1); }
+}
+
+@keyframes menu-fold {
+  from { opacity: 1; clip-path: inset(0); transform: scaleY(1); }
+  to { opacity: .2; clip-path: inset(0 0 100% 0); transform: scaleY(.96); }
+}
+
 .header-utilities .menu-dropdown {
   left: auto;
   right: 0;
@@ -2159,7 +2286,7 @@ select.hs-input { max-width: none; width: auto; min-width: 140px; }
   align-items: center;
   gap: 10px;
   padding: 7px 10px;
-  border: 1px solid transparent;
+  border: 1px solid var(--border);
   border-radius: 6px;
   background: transparent;
   color: var(--text-muted);
@@ -2172,12 +2299,13 @@ select.hs-input { max-width: none; width: auto; min-width: 140px; }
 
 .view-sidebar-item:hover {
   color: var(--text);
+  border-color: var(--border-hover);
   background: var(--bg-raised);
 }
 
 .view-sidebar-item.active {
   color: var(--text);
-  border-color: #444548;
+  border-color: var(--border-hover);
   background: var(--bg-active);
 }
 
@@ -2564,10 +2692,8 @@ select.hs-input { max-width: none; width: auto; min-width: 140px; }
 }
 
 .key-input,
-.hs-input,
-#settingsSearchInput {
+.hs-input {
   min-height: 40px;
-  padding: 8px 11px;
   border-color: var(--border);
   border-radius: 6px;
   background: var(--bg-input);
@@ -2716,6 +2842,13 @@ input[type="checkbox"] {
 
 .settings-grid-mini {
   gap: 8px;
+  margin-bottom: 8px;
+}
+
+.log-paths-list,
+.log-paths-list > div,
+.log-paths-list code {
+  min-width: 0;
 }
 
 .settings-option {
@@ -2947,9 +3080,10 @@ input[type="checkbox"] {
   flex: 1 1 auto;
 }
 
-.statusbar .sb-state::before,
-.statusbar .sb-done-count::before {
-  background: var(--success);
+.statusbar > span.sb-state::before,
+.statusbar > span.sb-done-count::before {
+  background: #43d17b;
+  box-shadow: 0 0 6px rgba(67, 209, 123, .55);
 }
 
 .statusbar .sb-speed::before,
diff --git a/scripts/dev-runner.cjs b/scripts/dev-runner.cjs
new file mode 100644
index 0000000..300d45f
--- /dev/null
+++ b/scripts/dev-runner.cjs
@@ -0,0 +1,124 @@
+const path = require('path');
+const fs = require('fs');
+const { spawn } = require('child_process');
+const chokidar = require('chokidar');
+
+const root = path.resolve(__dirname, '..');
+const electron = require('electron');
+const lockPath = path.join(root, '.dev-runner.lock');
+const watched = [
+  'main.js',
+  'preload.js',
+  'preload-drop-target.js',
+  path.join(root, 'lib'),
+  path.join(root, 'renderer')
+].map(target => path.isAbsolute(target) ? target : path.join(root, target));
+
+let child = null;
+let restartTimer = null;
+let stopping = false;
+let lockHandle = null;
+
+function processExists(pid) {
+  if (!Number.isInteger(pid) || pid <= 0) return false;
+  try {
+    process.kill(pid, 0);
+    return true;
+  } catch {
+    return false;
+  }
+}
+
+function acquireLock() {
+  for (let attempt = 0; attempt < 2; attempt += 1) {
+    try {
+      lockHandle = fs.openSync(lockPath, 'wx');
+      fs.writeFileSync(lockHandle, String(process.pid));
+      return true;
+    } catch (error) {
+      if (error.code !== 'EEXIST') return false;
+      let ownerPid = 0;
+      try { ownerPid = Number.parseInt(fs.readFileSync(lockPath, 'utf8'), 10); } catch {}
+      if (processExists(ownerPid)) return false;
+      try { fs.unlinkSync(lockPath); } catch {}
+    }
+  }
+  return false;
+}
+
+function releaseLock() {
+  if (lockHandle !== null) {
+    try { fs.closeSync(lockHandle); } catch {}
+    lockHandle = null;
+  }
+  try {
+    if (Number.parseInt(fs.readFileSync(lockPath, 'utf8'), 10) === process.pid) fs.unlinkSync(lockPath);
+  } catch {}
+}
+
+function startApp() {
+  child = spawn(electron, ['.', '--dev'], {
+    cwd: root,
+    stdio: 'inherit',
+    windowsHide: false
+  });
+  child.once('exit', (code, signal) => {
+    child = null;
+    if (!stopping && code !== 0 && signal !== 'SIGTERM') process.exitCode = code || 1;
+  });
+}
+
+function stopApp(done) {
+  if (!child || !child.pid) {
+    done();
+    return;
+  }
+  const pid = child.pid;
+  child = null;
+  if (process.platform === 'win32') {
+    const killer = spawn('taskkill', ['/pid', String(pid), '/t', '/f'], { stdio: 'ignore', windowsHide: true });
+    killer.once('close', done);
+    return;
+  }
+  process.kill(pid, 'SIGTERM');
+  done();
+}
+
+function restartApp() {
+  if (stopping) return;
+  stopApp(startApp);
+}
+
+function scheduleRestart() {
+  clearTimeout(restartTimer);
+  restartTimer = setTimeout(restartApp, 180);
+}
+
+if (!acquireLock()) {
+  process.stderr.write('A Multi-Hoster hot-dev runner is already active.\n');
+  process.exit(0);
+}
+
+const watcher = chokidar.watch(watched, {
+  ignoreInitial: true,
+  usePolling: true,
+  interval: 100,
+  awaitWriteFinish: { stabilityThreshold: 250, pollInterval: 50 }
+});
+watcher.on('all', (_event, file) => {
+  process.stdout.write(`[hotdev] renderer change detected: ${file}\n`);
+  scheduleRestart();
+});
+
+function shutdown() {
+  if (stopping) return;
+  stopping = true;
+  clearTimeout(restartTimer);
+  watcher.close().finally(() => stopApp(() => { releaseLock(); process.exit(0); }));
+}
+
+process.once('SIGINT', shutdown);
+process.once('SIGTERM', shutdown);
+process.once('exit', () => { stopping = true; releaseLock(); });
+
+startApp();
diff --git a/scripts/verify-public-release.mjs b/scripts/verify-public-release.mjs
index a7ae178..3d13235 100644
--- a/scripts/verify-public-release.mjs
+++ b/scripts/verify-public-release.mjs
@@ -65,6 +65,7 @@ const sourceFiles = [
   'renderer/index.html',
   'renderer/styles.css',
   'scripts/afterPack.cjs',
+  'scripts/dev-runner.cjs',
   'scripts/release-plan.mjs',
   'scripts/verify-public-release.mjs',
   'services/backup-api/package-lock.json',
@@ -126,6 +127,7 @@ const textExtensions = new Set(['.cjs', '.css', '.html', '.js', '.json', '.md',
 const binaryExtensions = new Set(['.ico', '.png']);
 const expectedScripts = {
   start: 'electron .',
+  dev: 'node scripts/dev-runner.cjs',
   test: 'node --test tests/*.test.js tests/ui-smoke.js',
   'test:backup-api': 'npm --prefix services/backup-api test',
   lint: 'eslint .',
diff --git a/tests/public-release-verifier.test.js b/tests/public-release-verifier.test.js
index e6ed67c..f0c9654 100644
--- a/tests/public-release-verifier.test.js
+++ b/tests/public-release-verifier.test.js
@@ -18,7 +18,8 @@ const rootFiles = [
   'preload.js'
 ];
 const directoryRoots = ['assets', 'lib', 'renderer', 'services/backup-api', 'tests'];
-const scriptFiles = ['scripts/afterPack.cjs', 'scripts/release-plan.mjs', 'scripts/verify-public-release.mjs'];
+const scriptFiles = ['scripts/afterPack.cjs', 'scripts/dev-runner.cjs', 'scripts/release-plan.mjs', 'scripts/verify-public-release.mjs'];
+const currentVersion = require('../package.json').version;
 
 function copyDirectory(source, destination) {
   fs.mkdirSync(destination, { recursive: true });
@@ -48,7 +49,7 @@ function createStage() {
   return stage;
 }
 
-function verify(stage, version = '2.0.7') {
+function verify(stage, version = currentVersion) {
   return spawnSync(process.execPath, ['scripts/verify-public-release.mjs', '--source-only', '--version', version], {
     cwd: stage,
     encoding: 'utf8'
diff --git a/tests/startup-renderer.test.js b/tests/startup-renderer.test.js
index 92555bc..7d24b3a 100644
--- a/tests/startup-renderer.test.js
+++ b/tests/startup-renderer.test.js
@@ -27,10 +27,10 @@ class TestBrowserWindow extends EventEmitter {
   }
 }
 
-test('configureStartupRenderer disables hardware acceleration', () => {
+test('configureStartupRenderer leaves hardware acceleration enabled', () => {
   let calls = 0;
   configureStartupRenderer({ disableHardwareAcceleration() { calls++; } });
-  assert.equal(calls, 1);
+  assert.equal(calls, 0);
 });
 
 test('createStartupWindow forces the main window to start hidden', () => {
diff --git a/tests/ui-smoke.js b/tests/ui-smoke.js
index 72c17a5..ecd628b 100644
--- a/tests/ui-smoke.js
+++ b/tests/ui-smoke.js
@@ -195,6 +195,24 @@ setTimeout(async () => {
     const tabStops = await wc.executeJavaScript('[...document.querySelectorAll(".tab")].map(el => el.tabIndex).join("|")');
     check('Tab navigation exposes one keyboard stop', tabStops === '0|-1|-1|-1');
 
+    await wc.executeJavaScript('document.querySelector("[data-menu-trigger=datei]")?.click()');
+    await new Promise(resolve => setTimeout(resolve, 60));
+    const mainMenuOpeningMotion = await wc.executeJavaScript('(() => { const menu = document.querySelector("[data-menu-dropdown=datei]"); if (!menu) return "missing"; const style = getComputedStyle(menu); const clip = style.clipPath; return [style.display !== "none", clip !== "none" && !/^inset\\(0(px)?\\)$/.test(clip), style.transform !== "none", parseFloat(style.animationDuration) >= .12].join("|"); })()');
+    check('Header dropdown visibly unfolds from top to bottom', mainMenuOpeningMotion === 'true|true|true|true');
+    await new Promise(resolve => setTimeout(resolve, 160));
+    await wc.executeJavaScript('document.querySelector(".menu-submenu")?.dispatchEvent(new MouseEvent("mouseenter"))');
+    await new Promise(resolve => setTimeout(resolve, 60));
+    const submenuOpeningMotion = await wc.executeJavaScript('(() => { const menu = document.querySelector(".menu-submenu-dropdown"); if (!menu) return "missing"; const style = getComputedStyle(menu); const clip = style.clipPath; return [style.display !== "none", clip !== "none" && !/^inset\\(0(px)?\\)$/.test(clip), style.transform !== "none", parseFloat(style.animationDuration) >= .12].join("|"); })()');
+    check('Nested header menu visibly unfolds from top to bottom', submenuOpeningMotion === 'true|true|true|true');
+    await new Promise(resolve => setTimeout(resolve, 160));
+    await wc.executeJavaScript('document.body.dispatchEvent(new MouseEvent("mousedown", { bubbles: true }))');
+    await new Promise(resolve => setTimeout(resolve, 60));
+    const mainMenuClosingMotion = await wc.executeJavaScript('(() => { const menu = document.querySelector("[data-menu-dropdown=datei]"); if (!menu) return "missing"; const style = getComputedStyle(menu); const clip = style.clipPath; return [style.display !== "none", menu.classList.contains("menu-closing"), clip !== "none" && !/^inset\\(0(px)?\\)$/.test(clip)].join("|"); })()');
+    check('Header dropdown remains visible while folding from bottom to top', mainMenuClosingMotion === 'true|true|true');
+    await new Promise(resolve => setTimeout(resolve, 160));
+    const mainMenuClosed = await wc.executeJavaScript('getComputedStyle(document.querySelector("[data-menu-dropdown=datei]")).display');
+    check('Header dropdown is hidden after its closing motion', mainMenuClosed === 'none');
+
     const dropVisible = await wc.executeJavaScript('document.getElementById("dropZone")?.style.display !== "none"');
     check('Drop zone visible (no files)', dropVisible);
 
@@ -206,9 +224,20 @@ setTimeout(async () => {
 
     const sbState = await wc.executeJavaScript('document.getElementById("sbState")?.textContent');
     check('Statusbar: Bereit', sbState === 'Bereit');
+    const readyDotColor = await wc.executeJavaScript('getComputedStyle(document.getElementById("sbState"), "::before").backgroundColor');
+    check('Ready status uses a green indicator', readyDotColor === 'rgb(67, 209, 123)');
 
     const version = await wc.executeJavaScript('document.getElementById("versionLabel")?.textContent');
     check('Version label present', version && version.startsWith('v'));
+    const versionMonogram = await wc.executeJavaScript('document.querySelector(".version-monogram")');
+    check('Header version badge has no meaningless monogram', versionMonogram === null);
+    const windowTitle = await wc.executeJavaScript('document.title');
+    check('Window uses the Multi Hoster Uploader title', windowTitle === 'Multi Hoster Uploader');
+    const appAlertState = await wc.executeJavaScript('showAppAlert("Keine Hoster mit Zugangsdaten für einen Check."); (() => { const modal = document.getElementById("appAlertModal"); return [modal?.style.display, modal?.getAttribute("aria-hidden"), document.getElementById("appAlertTitle")?.textContent, document.getElementById("appAlertMessage")?.textContent, document.activeElement?.id].join("|"); })()');
+    check('Hoster check uses the styled app dialog', appAlertState === 'flex|false|Hinweis|Keine Hoster mit Zugangsdaten für einen Check.|appAlertConfirmBtn');
+    await wc.executeJavaScript('document.getElementById("appAlertConfirmBtn")?.click(); true');
+    const appAlertClosed = await wc.executeJavaScript('document.getElementById("appAlertModal")?.style.display');
+    check('Styled app dialog closes with its confirmation action', appAlertClosed === 'none');
 
     const localizedQueueHeaders = await wc.executeJavaScript('[...document.querySelectorAll("#queueTable thead th")].map(el => el.childNodes[0]?.textContent.trim()).join("|")');
     check('Upload table labels are consistently German', localizedQueueHeaders === 'Dateiname|Hochgeladen / Größe|Hoster|Status|Zeit|Rest|Geschwindigkeit|Fortschritt');
@@ -228,6 +257,9 @@ setTimeout(async () => {
     const uploadSidebarInformation = await wc.executeJavaScript('(() => { const sidebar = document.querySelector("#upload-view > .view-sidebar")?.getBoundingClientRect(); const section = document.querySelector("#upload-view .view-sidebar-section")?.getBoundingClientRect(); return Boolean(sidebar && section && section.top >= sidebar.top + sidebar.height * 0.55 && document.getElementById("uploadSidebarAccountsCount")); })()');
     check('Upload sidebar keeps availability information in its lower area', uploadSidebarInformation === true);
 
+    const uploadSidebarBorders = await wc.executeJavaScript('(() => { const items = [...document.querySelectorAll("#upload-view .view-sidebar-item")]; const visible = items.every(item => { const style = getComputedStyle(item); return style.borderTopWidth === "1px" && style.borderTopStyle === "solid" && !style.borderTopColor.endsWith(", 0)"); }); const active = items.find(item => item.classList.contains("active")); const inactive = items.find(item => !item.classList.contains("active")); return [items.length, visible, active && inactive && getComputedStyle(active).borderTopColor !== getComputedStyle(inactive).borderTopColor].join("|"); })()');
+    check('Upload sidebar filters use visible borders with a stronger active state', uploadSidebarBorders === '5|true|true');
+
     const uploadFrameFit = await wc.executeJavaScript('(() => { const view = document.getElementById("upload-view")?.getBoundingClientRect(); const status = document.getElementById("statusbar")?.getBoundingClientRect(); return Boolean(view && status && status.height > 0 && view.bottom <= status.top + 1 && status.bottom <= window.innerHeight + 1); })()');
     check('Upload view and statusbar fit inside the viewport', uploadFrameFit === true);
 
@@ -327,6 +359,18 @@ setTimeout(async () => {
     const keyboardTab = await wc.executeJavaScript('document.getElementById("upload-tab").focus(); document.getElementById("upload-tab").dispatchEvent(new KeyboardEvent("keydown", { key: "ArrowRight", bubbles: true })); document.querySelector(".tab.active")?.textContent?.trim() + "|" + document.activeElement?.id');
     check('Arrow keys move and activate main tabs', keyboardTab === 'Accounts|accounts-tab');
 
+    await wc.executeJavaScript('window.__uiTabIndicatorStart = document.querySelector(".tab-indicator")?.getBoundingClientRect().left; document.getElementById("history-tab")?.click()');
+    await new Promise(resolve => setTimeout(resolve, 90));
+    const tabIndicatorInFlight = await wc.executeJavaScript('(() => { const indicator = document.querySelector(".tab-indicator"); const target = document.getElementById("history-tab"); const start = window.__uiTabIndicatorStart; if (!indicator || !target || !Number.isFinite(start)) return "missing"; const current = indicator.getBoundingClientRect().left; const targetLeft = target.getBoundingClientRect().left; const duration = parseFloat(getComputedStyle(indicator).transitionDuration); return [current > start + 2 && current < targetLeft - 2, duration >= .15].join("|"); })()');
+    check('Main navigation indicator remains visibly in motion while gliding right', tabIndicatorInFlight === 'true|true');
+    await new Promise(resolve => setTimeout(resolve, 150));
+    const tabIndicatorAtHistory = await wc.executeJavaScript('(() => { const indicator = document.querySelector(".tab-indicator"); const tab = document.getElementById("history-tab"); if (!indicator || !tab) return "missing"; const indicatorRect = indicator.getBoundingClientRect(); const tabRect = tab.getBoundingClientRect(); const style = getComputedStyle(indicator); return [Math.abs(indicatorRect.left - tabRect.left) <= 1, Math.abs(indicatorRect.width - tabRect.width) <= 1, style.transitionProperty.includes("transform")].join("|"); })()');
+    check('Main navigation indicator glides to a tab selected on the right', tabIndicatorAtHistory === 'true|true|true');
+    await wc.executeJavaScript('document.getElementById("upload-tab")?.click()');
+    await new Promise(resolve => setTimeout(resolve, 240));
+    const tabIndicatorAtUpload = await wc.executeJavaScript('(() => { const indicator = document.querySelector(".tab-indicator"); const tab = document.getElementById("upload-tab"); if (!indicator || !tab) return "missing"; const indicatorRect = indicator.getBoundingClientRect(); const tabRect = tab.getBoundingClientRect(); return [Math.abs(indicatorRect.left - tabRect.left) <= 1, Math.abs(indicatorRect.width - tabRect.width) <= 1].join("|"); })()');
+    check('Main navigation indicator glides back to a tab selected on the left', tabIndicatorAtUpload === 'true|true');
+
     const ctxHidden = await wc.executeJavaScript('document.getElementById("contextMenu")?.style.display');
     check('Context menu hidden', ctxHidden === 'none');
 
@@ -533,9 +577,31 @@ setTimeout(async () => {
 
     const settingsNavigation = await wc.executeJavaScript('(() => { const buttons = [...document.querySelectorAll(".settings-nav-button")]; return [buttons.length, buttons.map(button => button.textContent.trim()).join("|"), document.querySelector(".settings-nav-button.active")?.dataset.settingsPage, document.getElementById("settingsSearchInput")?.placeholder].join("::"); })()');
     check('Settings use the task-based sidebar navigation', settingsNavigation === '8::Allgemein|Uploads|Automatik|Benachrichtigungen|Logs & Support|Fernsteuerung|Diagnose-Zugriff|Backup & Übertragen::allgemein::Einstellungen durchsuchen');
+    await wc.executeJavaScript('document.querySelector("[data-settings-page=\\\'automatik\\\']")?.click()');
+    const automationInputAlignment = await wc.executeJavaScript('(() => { const first = document.getElementById("autoRetryRoundsInput")?.getBoundingClientRect(); const second = document.getElementById("autoRetryDelayMinInput")?.getBoundingClientRect(); const firstHintEl = document.getElementById("autoRetryRoundsInput")?.closest(".automation-retry-row")?.querySelector(".hint"); const secondHintEl = document.getElementById("autoRetryDelayMinInput")?.closest(".automation-retry-row")?.querySelector(".hint"); const firstHint = firstHintEl?.getBoundingClientRect(); const secondHint = secondHintEl?.getBoundingClientRect(); if (!first || !second || !firstHint || !secondHint || !firstHintEl || !secondHintEl) return "missing"; const firstTextLeft = firstHint.left + parseFloat(getComputedStyle(firstHintEl).paddingLeft); const secondTextLeft = secondHint.left + parseFloat(getComputedStyle(secondHintEl).paddingLeft); return [Math.round(Math.abs(first.left - second.left)), Math.round(first.width), Math.round(second.width), firstHint.top >= first.bottom + 6, secondHint.top >= second.bottom + 6, Math.round(Math.abs(firstTextLeft - first.left)) <= 1, Math.round(Math.abs(secondTextLeft - second.left)) <= 1].join("|"); })()');
+    check('Automation retry hints start directly below their aligned inputs', automationInputAlignment === '0|100|100|true|true|true|true');
 
     const settingsSidebarInformation = await wc.executeJavaScript('(() => { const feedback = document.getElementById("saveFeedback"); const sidebar = document.querySelector(".settings-sidebar"); const status = document.querySelector(".settings-sidebar-status"); return Boolean(feedback && sidebar?.contains(feedback) && status && !document.querySelector(".settings-header #saveFeedback")); })()');
     check('Settings sidebar owns the persistent save information', settingsSidebarInformation === true);
+    const settingsSearchPadding = await wc.executeJavaScript('parseFloat(getComputedStyle(document.getElementById("settingsSearchInput")).paddingLeft)');
+    check('Settings search text clears the search icon', settingsSearchPadding >= 24);
+    const settingsSearchIconAlignment = await wc.executeJavaScript('(() => { const icon = document.querySelector(".settings-search-icon"); const style = getComputedStyle(icon); return [style.display, style.alignItems, Boolean(icon?.querySelector("svg"))].join("|"); })()');
+    check('Settings search icon aligns to the input text line', settingsSearchIconAlignment === 'flex|center|true');
+    const settingsSearchControlGeometry = await wc.executeJavaScript('(() => { const control = document.querySelector(".settings-search-control"); const input = document.getElementById("settingsSearchInput"); const icon = document.querySelector(".settings-search-icon"); const svg = icon?.querySelector("svg"); if (!control || !input || !icon || !svg) return "missing"; const controlRect = control.getBoundingClientRect(); const inputRect = input.getBoundingClientRect(); const iconRect = icon.getBoundingClientRect(); const inputStyle = getComputedStyle(input); const iconStyle = getComputedStyle(icon); return [Math.round(controlRect.height), Math.round(inputRect.height), Math.round(Math.abs((inputRect.top + inputRect.height / 2) - (iconRect.top + iconRect.height / 2))), svg.getAttribute("viewBox"), inputStyle.lineHeight, inputStyle.paddingTop, inputStyle.paddingBottom, iconStyle.display, iconStyle.alignItems].join("|"); })()');
+    check('Settings search control keeps icon and text on one shared center line', settingsSearchControlGeometry === '40|40|0|0 0 24 24|18px|0px|0px|flex|center');
+
+    await wc.executeJavaScript('document.querySelector("[data-settings-page=\\'logs\\']")?.click()');
+    await new Promise(resolve => setTimeout(resolve, 100));
+    const logPathLayout = await wc.executeJavaScript('(() => { const block = document.getElementById("logPathsBlock")?.getBoundingClientRect(); const rows = [...document.querySelectorAll("#logPathsList > div")]; const visible = rows.length > 0 && rows.every(row => { const rect = row.getBoundingClientRect(); const code = row.querySelector("code")?.getBoundingClientRect(); const button = row.querySelector("button")?.getBoundingClientRect(); return block && rect.right <= block.right + 1 && code && button && code.right <= button.left - 6 && button.right <= block.right + 1; }); return [rows.length, visible].join("|"); })()');
+    check('Log file rows keep paths and buttons inside the Diagnose panel', logPathLayout === '4|true');
+
+    await wc.executeJavaScript('document.querySelector("[data-settings-page=\\'remote\\']")?.click()');
+    const remoteSettingsSpacing = await wc.executeJavaScript('(() => { const grid = document.querySelector("[data-subpage=remote] .settings-grid-mini")?.getBoundingClientRect(); const port = document.getElementById("remotePortInput")?.closest(".settings-row")?.getBoundingClientRect(); return grid && port ? Math.round(port.top - grid.bottom) : -1; })()');
+    check('Remote settings keep space before Port', remoteSettingsSpacing >= 8);
+
+    await wc.executeJavaScript('document.querySelector("[data-settings-page=\\'diagnose\\']")?.click()');
+    const diagnoseSettingsSpacing = await wc.executeJavaScript('(() => { const grid = document.querySelector("[data-subpage=diagnose] .settings-grid-mini")?.getBoundingClientRect(); const port = document.getElementById("diagPortInput")?.closest(".settings-row")?.getBoundingClientRect(); return grid && port ? Math.round(port.top - grid.bottom) : -1; })()');
+    check('Diagnose settings keep space before Port', diagnoseSettingsSpacing >= 8);
 
     await captureVisual('03-settings.png');
 
@@ -994,6 +1060,12 @@ setTimeout(async () => {
     check('History sidebar filters successful and failed rows without dropping source data', historyFilterState.success.rows.join('|') === 'ok.bin' && historyFilterState.success.errors === 0 && historyFilterState.error.rows.join('|') === 'bad.bin|stopped.bin' && historyFilterState.error.errors === 2 && historyFilterState.all.rows.length === 3 && historyFilterState.sourceLength === 3);
     check('History sidebar exposes exactly one pressed filter', historyFilterState.success.pressed.join('|') === 'success' && historyFilterState.success.active.join('|') === 'success' && historyFilterState.error.pressed.join('|') === 'error' && historyFilterState.error.active.join('|') === 'error' && historyFilterState.all.pressed.join('|') === 'all' && historyFilterState.all.active.join('|') === 'all');
 
+    const historyCopyControls = await wc.executeJavaScript('(() => { const rows = [...document.querySelectorAll("#historyBody .history-row")]; const buttons = rows.map(row => row.querySelector(".history-copy-link")); const inside = buttons.every(button => { const cell = button?.closest(".col-link"); const cellRect = cell?.getBoundingClientRect(); const buttonRect = button?.getBoundingClientRect(); return cellRect && buttonRect && buttonRect.right <= cellRect.right + 1 && buttonRect.left >= cellRect.left; }); return [buttons.length, buttons.every(button => button?.getAttribute("aria-label") === "Link kopieren"), inside].join("|"); })()');
+    check('History links expose an in-cell copy action', historyCopyControls === '3|true|true');
+    const historyCopyAction = await wc.executeJavaScript('document.querySelector(".history-copy-link")?.click(); document.getElementById("copyToast")?.textContent?.trim()');
+    check('History copy action confirms the copied link', historyCopyAction === 'Link kopiert');
+    await wc.executeJavaScript('document.getElementById("copyToast")?.classList.remove("show")');
+
     const historyErrorContrast = await wc.executeJavaScript(\`(() => {
       document.querySelector('[data-history-filter="error"]').click();
       const row = document.querySelector('#historyBody .history-row.error');