diff --git a/CLAUDE.md b/CLAUDE.md
new file mode 100644
index 00000000..0437c208
--- /dev/null
+++ b/CLAUDE.md
@@ -0,0 +1,85 @@
+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## Commands
+
+| Command | Description |
+|---------|-------------|
+| `npm run dev` | Start Vite dev server + Electron |
+| `npm run build` | Full production build (native helpers → TypeScript → Vite → Electron Builder) |
+| `npm run build:win` | Windows build (includes WGC capture) |
+| `npm run build:mac` | macOS build |
+| `npm run build:linux` | Linux build |
+| `npm run lint` | Biome lint check |
+| `npm run lint:fix` | Biome auto-fix |
+| `npm run format` | Biome format |
+| `npm run test` | Run Vitest (single run) |
+| `npm run test:watch` | Vitest in watch mode |
+| `npm run i18n:check` | Validate i18n locale file structure against `en` |
+
+Run a single test file: `npx vitest run src/lib/exporter/gifExporter.test.ts`
+
+## Architecture
+
+**Electron + React + Vite** desktop screen recorder and video editor.
+
+### Process Model
+
+- **Main process** (`electron/main.ts`): Window lifecycle, tray icon, native recording, file I/O, permissions, auto-cleanup
+- **Preload** (`electron/preload.ts`): contextBridge API exposing ~40 IPC methods to renderer
+- **IPC handlers** (`electron/ipc/handlers.ts`): All main↔renderer communication; recording pipelines, file operations, project persistence, shortcuts, cursor telemetry
+- **Renderer** (`src/`): React SPA routed by `?windowType=` URL parameter (no router library)
+
+### Three Window Types
+
+1. **HUD Overlay** (`?windowType=hud-overlay`): 500×155 floating bar at screen bottom for recording controls. Transparent, always-on-top.
+2. **Editor** (`?windowType=editor`): Main video editor window (1200×800, maximized). Houses timeline, playback, annotations, export.
+3. **Source Selector** (`?windowType=source-selector`): 620×420 popup for picking capture sources.
+
+`App.tsx` switches components based on the `windowType` query param.
+
+### Recording Pipeline (Platform-Specific)
+
+- **macOS**: ScreenCaptureKit via compiled Swift helpers (`scripts/build-native-helpers.mjs`)
+- **Windows**: WGC (Windows.Graphics.Capture) via C++ CMake build (`scripts/build-wgc-capture.mjs`), fallback to FFmpeg
+- **Linux**: Chromium `getDisplayMedia`
+- Core recording logic: `src/hooks/useScreenRecorder.ts` (60 FPS target, adaptive bitrate)
+
+### Export Engine (`src/lib/exporter/`)
+
+GPU-accelerated pipeline: WebCodec streaming decode → PIXI.js frame rendering (zoom, crop, annotations, cursor) → MP4 mux (mp4box) or GIF (gif.js with Web Workers). Key files: `videoExporter.ts`, `gifExporter.ts`, `frameRenderer.ts`, `streamingDecoder.ts`, `muxer.ts`.
+
+### State Management
+
+No external state library. `VideoEditor.tsx` uses ~50 `useState` hooks. Undo/redo via `useRef` history stacks. Only two React Contexts: `I18nContext` and `ShortcutsContext`.
+
+### i18n System
+
+- Config: `src/i18n/config.ts` — languages: `en` (source), `es`
+- Locale files: `src/i18n/locales/{lang}/{namespace}.json`
+- 7 namespaces: `common`, `launch`, `editor`, `timeline`, `settings`, `dialogs`, `shortcuts`
+- Implementation: `src/contexts/I18nContext.tsx` — compile-time JSON import, recursive key lookup, `{{var}}` interpolation
+- Fallback chain: current language → English → provided fallback → raw key
+- Run `npm run i18n:check` after any locale changes
+- See `TRANSLATION_GUIDE.md` for contributor workflow
+
+### UI Layer
+
+- Base components: `src/components/ui/` — Radix UI primitives wrapped with shadcn/ui patterns
+- Styling: Tailwind CSS with CSS variable theming, class-based dark mode
+- Icons: lucide-react + react-icons
+- Timeline: `dnd-timeline` library for drag-and-drop editing
+- Path alias: `@/` → `src/`
+
+### Project File Format
+
+`.recordly` files (legacy `.openscreen` supported). Serialization in `src/components/video-editor/projectPersistence.ts`.
+
+## Code Quality
+
+- **Biome** is the primary linter/formatter (tab indent, LF, 100 char width)
+- **Strict TypeScript**: `noExplicitAny: error`, no unused variables/params
+- **Hook rules enforced**: `useHookAtTopLevel: error`
+- **Import organization**: automatic via Biome
+- Tests use Vitest + fast-check (property-based testing). Test files: `src/**/*.{test,spec}.{ts,tsx}`
diff --git a/src/components/launch/LaunchWindow.tsx b/src/components/launch/LaunchWindow.tsx
index 0aa8ff5e..20d121b0 100644
--- a/src/components/launch/LaunchWindow.tsx
+++ b/src/components/launch/LaunchWindow.tsx
@@ -9,6 +9,7 @@ import { RxDragHandleDots2 } from "react-icons/rx";
 import { useAudioLevelMeter } from "../../hooks/useAudioLevelMeter";
 import { useMicrophoneDevices } from "../../hooks/useMicrophoneDevices";
 import { useScreenRecorder } from "../../hooks/useScreenRecorder";
+import { useScopedT } from "../../contexts/I18nContext";
 import { Button } from "../ui/button";
 import { AudioLevelMeter } from "../ui/audio-level-meter";
 import { ContentClamp } from "../ui/content-clamp";
@@ -25,6 +26,7 @@ import styles from "./LaunchWindow.module.css";
 
 export function LaunchWindow() {
   const { locale, setLocale } = useI18n();
+  const t = useScopedT('launch');
 
   const LOCALE_LABELS: Record<string, string> = { en: "EN", es: "ES", "zh-CN": "中文" };
   const {
@@ -224,7 +226,7 @@ export function LaunchWindow() {
               size="icon"
               onClick={() => !recording && setSystemAudioEnabled(!systemAudioEnabled)}
               disabled={recording}
-              title={systemAudioEnabled ? "Disable system audio" : "Enable system audio"}
+              title={systemAudioEnabled ? t('recording.disableSystemAudio') : t('recording.enableSystemAudio')}
               className="text-white/80 hover:bg-transparent"
             >
               {systemAudioEnabled ? <MdVolumeUp size={16} className="text-[#2563EB]" /> : <MdVolumeOff size={16} className="text-white/35" />}
@@ -234,7 +236,7 @@ export function LaunchWindow() {
               size="icon"
               onClick={toggleMicrophone}
               disabled={recording}
-              title={microphoneEnabled ? "Disable microphone" : "Enable microphone"}
+              title={microphoneEnabled ? t('recording.disableMicrophone') : t('recording.enableMicrophone')}
               className="text-white/80 hover:bg-transparent"
             >
               {microphoneEnabled ? <MdMic size={16} className="text-[#2563EB]" /> : <MdMicOff size={16} className="text-white/35" />}
@@ -258,7 +260,7 @@ export function LaunchWindow() {
             ) : (
               <>
                 <BsRecordCircle size={14} className={hasSelectedSource ? "text-white/85" : "text-white/35"} />
-                <span className={hasSelectedSource ? "text-white/80" : "text-white/35"}>Record</span>
+                <span className={hasSelectedSource ? "text-white/80" : "text-white/35"}>{t('recording.record')}</span>
               </>
             )}
           </Button>
@@ -268,10 +270,10 @@ export function LaunchWindow() {
             size="sm"
             onClick={chooseRecordingsDirectory}
             disabled={recording}
-            title={recordingsDirectory ? `Recording folder: ${recordingsDirectory}` : "Choose recordings folder"}
+            title={recordingsDirectory ? t('recording.recordingFolder', undefined, { path: recordingsDirectory }) : t('recording.chooseRecordingsFolder')}
             className={`text-white/75 hover:bg-transparent px-1 text-[11px] underline decoration-white/45 underline-offset-2 ${styles.electronNoDrag}`}
           >
-            <ContentClamp truncateLength={18}>{`Path: /${recordingsDirectoryName}/`}</ContentClamp>
+            <ContentClamp truncateLength={18}>{t('recording.folderPath', undefined, { name: recordingsDirectoryName })}</ContentClamp>
           </Button>
 
           <div className="ml-auto flex items-center gap-0.5">
@@ -281,7 +283,7 @@ export function LaunchWindow() {
               size="icon"
               onClick={openVideoFile}
               disabled={recording}
-              title="Open video file"
+              title={t('recording.openVideoFile')}
               className={`text-white/70 hover:bg-transparent ${styles.electronNoDrag}`}
             >
               <MdVideoFile size={15} />
@@ -291,7 +293,7 @@ export function LaunchWindow() {
               size="icon"
               onClick={openProjectFile}
               disabled={recording}
-              title="Open project"
+              title={t('recording.openProject')}
               className={`text-white/70 hover:bg-transparent ${styles.electronNoDrag}`}
             >
               <FaFolderOpen size={14} />
@@ -330,7 +332,7 @@ export function LaunchWindow() {
               variant="link"
               size="icon"
               onClick={sendHudOverlayHide}
-              title="Hide HUD"
+              title={t('recording.hideHud')}
               className={`text-white/70 hover:bg-transparent ${styles.electronNoDrag}`}
             >
               <FiMinus size={16} />
@@ -339,7 +341,7 @@ export function LaunchWindow() {
               variant="link"
               size="icon"
               onClick={sendHudOverlayClose}
-              title="Close App"
+              title={t('recording.closeApp')}
               className={`text-white/70 hover:bg-transparent ${styles.electronNoDrag}`}
             >
               <FiX size={16} />
diff --git a/src/components/launch/SourceSelector.tsx b/src/components/launch/SourceSelector.tsx
index 0de404bb..9b98e329 100644
--- a/src/components/launch/SourceSelector.tsx
+++ b/src/components/launch/SourceSelector.tsx
@@ -3,6 +3,7 @@ import { Button } from "../ui/button";
 import { MdCheck } from "react-icons/md";
 import { Tabs, TabsContent, TabsList, TabsTrigger } from "../ui/tabs";
 import { Card } from "../ui/card";
+import { useScopedT } from "../../contexts/I18nContext";
 import styles from "./SourceSelector.module.css";
 
 interface DesktopSource {
@@ -50,6 +51,7 @@ function parseSourceMetadata(source: ProcessedDesktopSource) {
 }
 
 export function SourceSelector() {
+  const t = useScopedT('launch');
   const [sources, setSources] = useState<DesktopSource[]>([]);
   const [selectedSource, setSelectedSource] = useState<DesktopSource | null>(null);
   const [activeTab, setActiveTab] = useState<'screens' | 'windows'>('screens');
@@ -118,7 +120,7 @@ export function SourceSelector() {
       <div className={`h-full flex items-center justify-center ${styles.glassContainer}`} style={{ minHeight: '100vh' }}>
         <div className="text-center">
           <div className="animate-spin rounded-full h-6 w-6 border-b-2 border-zinc-600 mx-auto mb-2" />
-          <p className="text-xs text-zinc-300">Loading sources...</p>
+          <p className="text-xs text-zinc-300">{t('sourceSelector.loadingSources')}</p>
         </div>
       </div>
     );
@@ -130,10 +132,10 @@ export function SourceSelector() {
         <Tabs value={activeTab} onValueChange={(value) => setActiveTab(value as 'screens' | 'windows')}>
           <TabsList className="grid grid-cols-2 mb-3 bg-zinc-900/40 rounded-full">
             <TabsTrigger value="screens" className="data-[state=active]:bg-[#2563EB] data-[state=active]:text-white text-zinc-200 rounded-full text-xs py-1">
-              Screens ({screenSources.length})
+              {t('sourceSelector.screens')} ({screenSources.length})
             </TabsTrigger>
             <TabsTrigger value="windows" className="data-[state=active]:bg-[#2563EB] data-[state=active]:text-white text-zinc-200 rounded-full text-xs py-1">
-              Windows ({windowSources.length})
+              {t('sourceSelector.windows')} ({windowSources.length})
             </TabsTrigger>
           </TabsList>
             <div className="h-72 flex flex-col justify-stretch">
@@ -171,7 +173,7 @@ export function SourceSelector() {
               </div>
             </TabsContent>
             <TabsContent value="windows" className="h-full">
-              <p className="text-[10px] text-zinc-500 mb-1 px-1">Only visible (non-minimized) windows can be recorded.</p>
+              <p className="text-[10px] text-zinc-500 mb-1 px-1">{t('sourceSelector.windowsNote')}</p>
               <div className={`grid grid-cols-2 gap-2 h-full overflow-y-auto pr-1 relative ${styles.sourceGridScroll}`}>
                 {windowSources.length === 0 && (
                   <div className="col-span-2 text-center text-xs text-zinc-500 py-8">No windows available</div>
@@ -202,7 +204,7 @@ export function SourceSelector() {
                             ) : (
                               <div className="w-8 h-8 rounded-md bg-zinc-800 border border-zinc-700" />
                             )}
-                            <div className="text-[10px] uppercase tracking-[0.2em] text-zinc-500">Window</div>
+                            <div className="text-[10px] uppercase tracking-[0.2em] text-zinc-500">{t('sourceSelector.windowPlaceholder')}</div>
                           </div>
                         )}
                         {selectedSource?.id === source.id && (
@@ -233,8 +235,8 @@ export function SourceSelector() {
       </div>
       <div className="border-t border-zinc-800 p-2 w-full max-w-xl">
         <div className="flex justify-center gap-2">
-          <Button variant="outline" onClick={() => window.close()} className="px-4 py-1 text-xs bg-zinc-800 border-zinc-700 text-zinc-200 hover:bg-zinc-700">Cancel</Button>
-          <Button onClick={handleShare} disabled={!selectedSource} className="px-4 py-1 text-xs bg-[#2563EB] text-white hover:bg-[#2563EB]/80 disabled:opacity-50 disabled:bg-zinc-700">Share</Button>
+          <Button variant="outline" onClick={() => window.close()} className="px-4 py-1 text-xs bg-zinc-800 border-zinc-700 text-zinc-200 hover:bg-zinc-700">{t('sourceSelector.cancel')}</Button>
+          <Button onClick={handleShare} disabled={!selectedSource} className="px-4 py-1 text-xs bg-[#2563EB] text-white hover:bg-[#2563EB]/80 disabled:opacity-50 disabled:bg-zinc-700">{t('sourceSelector.share')}</Button>
         </div>
       </div>
     </div>
diff --git a/src/components/video-editor/AddCustomFontDialog.tsx b/src/components/video-editor/AddCustomFontDialog.tsx
index a60644fa..f0054a7f 100644
--- a/src/components/video-editor/AddCustomFontDialog.tsx
+++ b/src/components/video-editor/AddCustomFontDialog.tsx
@@ -19,12 +19,14 @@ import {
   isValidGoogleFontsUrl,
   type CustomFont,
 } from '@/lib/customFonts';
+import { useScopedT } from '../../contexts/I18nContext';
 
 interface AddCustomFontDialogProps {
   onFontAdded?: (font: CustomFont) => void;
 }
 
 export function AddCustomFontDialog({ onFontAdded }: AddCustomFontDialogProps) {
+  const t = useScopedT('dialogs');
   const [open, setOpen] = useState(false);
   const [importUrl, setImportUrl] = useState('');
   const [fontName, setFontName] = useState('');
@@ -45,17 +47,17 @@ export function AddCustomFontDialog({ onFontAdded }: AddCustomFontDialogProps) {
   const handleAdd = async () => {
     // Validate inputs
     if (!importUrl.trim()) {
-      toast.error('Please enter a Google Fonts import URL');
+      toast.error(t('addFont.enterUrl'));
       return;
     }
 
     if (!isValidGoogleFontsUrl(importUrl)) {
-      toast.error('Please enter a valid Google Fonts URL');
+      toast.error(t('addFont.invalidUrl'));
       return;
     }
 
     if (!fontName.trim()) {
-      toast.error('Please enter a font name');
+      toast.error(t('addFont.enterName'));
       return;
     }
 
@@ -65,7 +67,7 @@ export function AddCustomFontDialog({ onFontAdded }: AddCustomFontDialogProps) {
       // Extract font family from URL
       const fontFamily = parseFontFamilyFromImport(importUrl);
       if (!fontFamily) {
-        toast.error('Could not extract font family from URL');
+        toast.error(t('addFont.extractFailed'));
         setLoading(false);
         return;
       }
@@ -86,7 +88,7 @@ export function AddCustomFontDialog({ onFontAdded }: AddCustomFontDialogProps) {
         onFontAdded(newFont);
       }
 
-      toast.success(`Font "${fontName}" added successfully`);
+      toast.success(t('addFont.addSuccess', undefined, { name: fontName }));
 
       // Reset and close
       setImportUrl('');
@@ -95,10 +97,10 @@ export function AddCustomFontDialog({ onFontAdded }: AddCustomFontDialogProps) {
     } catch (error) {
       console.error('Failed to add custom font:', error);
       const errorMessage = error instanceof Error ? error.message : 'Failed to load font';
-      toast.error('Failed to add font', {
+      toast.error(t('addFont.addFailed'), {
         description: errorMessage.includes('timeout')
-          ? 'Font took too long to load. Please check the URL and try again.'
-          : 'The font could not be loaded. Please verify the Google Fonts URL is correct.',
+          ? t('addFont.loadTimeout')
+          : t('addFont.loadFailed'),
       });
     } finally {
       setLoading(false);
@@ -114,47 +116,47 @@ export function AddCustomFontDialog({ onFontAdded }: AddCustomFontDialogProps) {
           className="w-full bg-white/5 border-white/10 text-slate-200 hover:bg-white/10 h-9 text-xs"
         >
           <Plus className="w-3 h-3 mr-1" />
-          Add Google Font
+          {t('addFont.title')}
         </Button>
       </DialogTrigger>
       <DialogContent className="bg-[#1a1a1c] border-white/10 text-slate-200">
         <DialogHeader>
-          <DialogTitle>Add Google Font</DialogTitle>
+          <DialogTitle>{t('addFont.heading')}</DialogTitle>
           <DialogDescription className="text-slate-400">
-            Add a custom font from Google Fonts to use in your annotations.
+            {t('addFont.description')}
           </DialogDescription>
         </DialogHeader>
 
         <div className="space-y-4 mt-4">
           <div className="space-y-2">
             <Label htmlFor="import-url" className="text-slate-200">
-              Google Fonts Import URL
+              {t('addFont.urlLabel')}
             </Label>
             <Input
               id="import-url"
-              placeholder="https://fonts.googleapis.com/css2?family=Roboto&display=swap"
+              placeholder={t('addFont.urlPlaceholder')}
               value={importUrl}
               onChange={(e) => handleImportUrlChange(e.target.value)}
               className="bg-white/5 border-white/10 text-slate-200"
             />
             <p className="text-xs text-slate-400">
-              Get this from Google Fonts: Select a font → Click "Get font" → Copy the @import URL
+              {t('addFont.urlHelp')}
             </p>
           </div>
 
           <div className="space-y-2">
             <Label htmlFor="font-name" className="text-slate-200">
-              Display Name
+              {t('addFont.nameLabel')}
             </Label>
             <Input
               id="font-name"
-              placeholder="My Custom Font"
+              placeholder={t('addFont.namePlaceholder')}
               value={fontName}
               onChange={(e) => setFontName(e.target.value)}
               className="bg-white/5 border-white/10 text-slate-200"
             />
             <p className="text-xs text-slate-400">
-              This is how the font will appear in the font selector
+              {t('addFont.nameHelp')}
             </p>
           </div>
 
@@ -164,14 +166,14 @@ export function AddCustomFontDialog({ onFontAdded }: AddCustomFontDialogProps) {
               onClick={() => setOpen(false)}
               className="bg-white/5 border-white/10 text-slate-200 hover:bg-white/10"
             >
-              Cancel
+              {t('addFont.cancel')}
             </Button>
             <Button
               onClick={handleAdd}
               disabled={loading}
               className="bg-blue-600 hover:bg-blue-700 text-white"
             >
-              {loading ? 'Adding...' : 'Add Font'}
+              {loading ? t('addFont.adding') : t('addFont.addFont')}
             </Button>
           </div>
         </div>
@@ -179,4 +181,4 @@ export function AddCustomFontDialog({ onFontAdded }: AddCustomFontDialogProps) {
     </Dialog>
   );
 }
-
+
diff --git a/src/components/video-editor/AnnotationSettingsPanel.tsx b/src/components/video-editor/AnnotationSettingsPanel.tsx
index 4590b421..fd8d9a82 100644
--- a/src/components/video-editor/AnnotationSettingsPanel.tsx
+++ b/src/components/video-editor/AnnotationSettingsPanel.tsx
@@ -1,4 +1,4 @@
-import { useRef, useState, useEffect } from "react";
+import { useRef, useState, useEffect, useMemo } from "react";
 import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
 import { Button } from "@/components/ui/button";
 import { Trash2, Type, Image as ImageIcon, Upload, Bold, Italic, Underline, AlignLeft, AlignCenter, AlignRight, ChevronDown, Info } from "lucide-react";
@@ -13,6 +13,7 @@ import { cn } from "@/lib/utils";
 import { getArrowComponent } from "./ArrowSvgs";
 import { AddCustomFontDialog } from "./AddCustomFontDialog";
 import { getCustomFonts, type CustomFont } from "@/lib/customFonts";
+import { useScopedT } from "../../contexts/I18nContext";
 
 interface AnnotationSettingsPanelProps {
   annotation: AnnotationRegion;
@@ -23,15 +24,15 @@ interface AnnotationSettingsPanelProps {
   onDelete: () => void;
 }
 
-const FONT_FAMILIES = [
-  { value: 'system-ui, -apple-system, sans-serif', label: 'Classic' },
-  { value: 'Georgia, serif', label: 'Editor' },
-  { value: 'Impact, Arial Black, sans-serif', label: 'Strong' },
-  { value: 'Courier New, monospace', label: 'Typewriter' },
-  { value: 'Brush Script MT, cursive', label: 'Deco' },
-  { value: 'Arial, sans-serif', label: 'Simple' },
-  { value: 'Verdana, sans-serif', label: 'Modern' },
-  { value: 'Trebuchet MS, sans-serif', label: 'Clean' },
+const FONT_FAMILY_VALUES = [
+  { value: 'system-ui, -apple-system, sans-serif', labelKey: 'fontStyles.classic' },
+  { value: 'Georgia, serif', labelKey: 'fontStyles.editor' },
+  { value: 'Impact, Arial Black, sans-serif', labelKey: 'fontStyles.strong' },
+  { value: 'Courier New, monospace', labelKey: 'fontStyles.typewriter' },
+  { value: 'Brush Script MT, cursive', labelKey: 'fontStyles.deco' },
+  { value: 'Arial, sans-serif', labelKey: 'fontStyles.simple' },
+  { value: 'Verdana, sans-serif', labelKey: 'fontStyles.modern' },
+  { value: 'Trebuchet MS, sans-serif', labelKey: 'fontStyles.clean' },
 ];
 
 const FONT_SIZES = [12, 14, 16, 18, 20, 24, 28, 32, 36, 40, 48, 56, 64, 72, 80, 96, 128];
@@ -44,9 +45,15 @@ export function AnnotationSettingsPanel({
   onFigureDataChange,
   onDelete,
 }: AnnotationSettingsPanelProps) {
+  const t = useScopedT('editor');
   const fileInputRef = useRef<HTMLInputElement>(null);
   const [customFonts, setCustomFonts] = useState<CustomFont[]>([]);
 
+  const fontFamilies = useMemo(() =>
+    FONT_FAMILY_VALUES.map((f) => ({ value: f.value, label: t(f.labelKey) })),
+    [t],
+  );
+
   // Load custom fonts on mount
   useEffect(() => {
     setCustomFonts(getCustomFonts());
@@ -82,8 +89,8 @@ export function AnnotationSettingsPanel({
     // Validate file type
     const validTypes = ['image/jpeg', 'image/jpg', 'image/png', 'image/gif', 'image/webp'];
     if (!validTypes.includes(file.type)) {
-      toast.error('Invalid file type', {
-        description: 'Please upload a JPG, PNG, GIF, or WebP image file.',
+      toast.error(t('annotations.imageUploadError'), {
+        description: t('annotations.imageUploadErrorDescription'),
       });
       event.target.value = '';
       return;
@@ -95,13 +102,13 @@ export function AnnotationSettingsPanel({
       const dataUrl = e.target?.result as string;
       if (dataUrl) {
         onContentChange(dataUrl);
-        toast.success('Image uploaded successfully!');
+        toast.success(t('annotations.imageUploadSuccess'));
       }
     };
 
     reader.onerror = () => {
-      toast.error('Failed to upload image', {
-        description: 'There was an error reading the file.',
+      toast.error(t('annotations.imageUploadFailed'), {
+        description: t('annotations.imageUploadFailedDescription'),
       });
     };
 
@@ -113,9 +120,9 @@ export function AnnotationSettingsPanel({
     <div className="flex-[2] min-w-0 bg-[#09090b] border border-white/5 rounded-2xl p-4 flex flex-col shadow-xl h-full overflow-y-auto custom-scrollbar">
       <div className="mb-6">
         <div className="flex items-center justify-between mb-4">
-          <span className="text-sm font-medium text-slate-200">Annotation Settings</span>
+          <span className="text-sm font-medium text-slate-200">{t('annotations.settings')}</span>
           <span className="text-[10px] uppercase tracking-wider font-medium text-[#2563EB] bg-[#2563EB]/10 px-2 py-1 rounded-full">
-            Active
+            {t('annotations.active')}
           </span>
         </div>
         
@@ -124,28 +131,28 @@ export function AnnotationSettingsPanel({
           <TabsList className="mb-4 bg-white/5 border border-white/5 p-1 w-full grid grid-cols-3 h-auto rounded-xl">
             <TabsTrigger value="text" className="data-[state=active]:bg-[#2563EB] data-[state=active]:text-white text-slate-400 py-2 rounded-lg transition-all gap-2">
               <Type className="w-4 h-4" />
-              Text
+              {t('annotations.text')}
             </TabsTrigger>
             <TabsTrigger value="image" className="data-[state=active]:bg-[#2563EB] data-[state=active]:text-white text-slate-400 py-2 rounded-lg transition-all gap-2">
               <ImageIcon className="w-4 h-4" />
-              Image
+              {t('annotations.image')}
             </TabsTrigger>
             <TabsTrigger value="figure" className="data-[state=active]:bg-[#2563EB] data-[state=active]:text-white text-slate-400 py-2 rounded-lg transition-all gap-2">
               <svg className="w-4 h-4" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
                 <path d="M4 12h16m0 0l-6-6m6 6l-6 6" strokeLinecap="round" strokeLinejoin="round" />
               </svg>
-              Arrow
+              {t('annotations.arrow')}
             </TabsTrigger>
           </TabsList>
 
           {/* Text Content */}
           <TabsContent value="text" className="mt-0 space-y-4">
             <div>
-              <label className="text-xs font-medium text-slate-200 mb-2 block">Text Content</label>
+              <label className="text-xs font-medium text-slate-200 mb-2 block">{t('annotations.textContent')}</label>
               <textarea
                 value={annotation.textContent || annotation.content}
                 onChange={(e) => onContentChange(e.target.value)}
-                placeholder="Enter your text..."
+                placeholder={t('annotations.textPlaceholder')}
                 rows={5}
                 className="w-full px-3 py-2 bg-white/5 border border-white/10 rounded-lg text-slate-200 text-sm placeholder:text-slate-500 focus:outline-none focus:ring-2 focus:ring-[#2563EB] focus:border-transparent resize-none"
               />
@@ -156,16 +163,16 @@ export function AnnotationSettingsPanel({
               {/* Font Family & Size */}
               <div className="grid grid-cols-2 gap-2">
                 <div>
-                  <label className="text-xs font-medium text-slate-200 mb-2 block">Font Style</label>
+                  <label className="text-xs font-medium text-slate-200 mb-2 block">{t('annotations.fontStyle')}</label>
                   <Select
                     value={annotation.style.fontFamily}
                     onValueChange={(value) => onStyleChange({ fontFamily: value })}
                   >
                     <SelectTrigger className="w-full bg-white/5 border-white/10 text-slate-200 h-9 text-xs">
-                      <SelectValue placeholder="Select style" />
+                      <SelectValue placeholder={t('annotations.selectStyle')} />
                     </SelectTrigger>
                     <SelectContent className="bg-[#1a1a1c] border-white/10 text-slate-200 max-h-[300px]">
-                      {FONT_FAMILIES.map((font) => (
+                      {fontFamilies.map((font) => (
                         <SelectItem key={font.value} value={font.value} style={{ fontFamily: font.value }}>
                           {font.label}
                         </SelectItem>
@@ -190,13 +197,13 @@ export function AnnotationSettingsPanel({
                   </Select>
                 </div>
                 <div>
-                  <label className="text-xs font-medium text-slate-200 mb-2 block">Size</label>
+                  <label className="text-xs font-medium text-slate-200 mb-2 block">{t('annotations.size')}</label>
                   <Select 
                     value={annotation.style.fontSize.toString()} 
                     onValueChange={(value) => onStyleChange({ fontSize: parseInt(value) })}
                   >
                     <SelectTrigger className="w-full bg-white/5 border-white/10 text-slate-200 h-9 text-xs">
-                      <SelectValue placeholder="Size" />
+                      <SelectValue placeholder={t('annotations.size')} />
                     </SelectTrigger>
                     <SelectContent className="bg-[#1a1a1c] border-white/10 text-slate-200 max-h-[200px]">
                       {FONT_SIZES.map((size) => (
@@ -224,7 +231,7 @@ export function AnnotationSettingsPanel({
                 <ToggleGroup type="multiple" className="justify-start bg-white/5 p-1 rounded-lg border border-white/5">
                   <ToggleGroupItem 
                     value="bold" 
-                    aria-label="Toggle bold"
+                    aria-label={t('annotations.toggleBold')}
                     data-state={annotation.style.fontWeight === 'bold' ? 'on' : 'off'}
                     onClick={() => onStyleChange({ fontWeight: annotation.style.fontWeight === 'bold' ? 'normal' : 'bold' })}
                     className="h-8 w-8 data-[state=on]:bg-[#2563EB] data-[state=on]:text-white text-slate-400 hover:bg-white/5 hover:text-slate-200"
@@ -233,7 +240,7 @@ export function AnnotationSettingsPanel({
                   </ToggleGroupItem>
                   <ToggleGroupItem 
                     value="italic" 
-                    aria-label="Toggle italic"
+                    aria-label={t('annotations.toggleItalic')}
                     data-state={annotation.style.fontStyle === 'italic' ? 'on' : 'off'}
                     onClick={() => onStyleChange({ fontStyle: annotation.style.fontStyle === 'italic' ? 'normal' : 'italic' })}
                     className="h-8 w-8 data-[state=on]:bg-[#2563EB] data-[state=on]:text-white text-slate-400 hover:bg-white/5 hover:text-slate-200"
@@ -242,7 +249,7 @@ export function AnnotationSettingsPanel({
                   </ToggleGroupItem>
                   <ToggleGroupItem 
                     value="underline" 
-                    aria-label="Toggle underline"
+                    aria-label={t('annotations.toggleUnderline')}
                     data-state={annotation.style.textDecoration === 'underline' ? 'on' : 'off'}
                     onClick={() => onStyleChange({ textDecoration: annotation.style.textDecoration === 'underline' ? 'none' : 'underline' })}
                     className="h-8 w-8 data-[state=on]:bg-[#2563EB] data-[state=on]:text-white text-slate-400 hover:bg-white/5 hover:text-slate-200"
@@ -254,7 +261,7 @@ export function AnnotationSettingsPanel({
                 <ToggleGroup type="single" value={annotation.style.textAlign} className="justify-start bg-white/5 p-1 rounded-lg border border-white/5">
                   <ToggleGroupItem 
                     value="left" 
-                    aria-label="Align left"
+                    aria-label={t('annotations.alignLeft')}
                     onClick={() => onStyleChange({ textAlign: 'left' })}
                     className="h-8 w-8 data-[state=on]:bg-[#2563EB] data-[state=on]:text-white text-slate-400 hover:bg-white/5 hover:text-slate-200"
                   >
@@ -262,7 +269,7 @@ export function AnnotationSettingsPanel({
                   </ToggleGroupItem>
                   <ToggleGroupItem 
                     value="center" 
-                    aria-label="Align center"
+                    aria-label={t('annotations.alignCenter')}
                     onClick={() => onStyleChange({ textAlign: 'center' })}
                     className="h-8 w-8 data-[state=on]:bg-[#2563EB] data-[state=on]:text-white text-slate-400 hover:bg-white/5 hover:text-slate-200"
                   >
@@ -270,7 +277,7 @@ export function AnnotationSettingsPanel({
                   </ToggleGroupItem>
                   <ToggleGroupItem 
                     value="right" 
-                    aria-label="Align right"
+                    aria-label={t('annotations.alignRight')}
                     onClick={() => onStyleChange({ textAlign: 'right' })}
                     className="h-8 w-8 data-[state=on]:bg-[#2563EB] data-[state=on]:text-white text-slate-400 hover:bg-white/5 hover:text-slate-200"
                   >
@@ -282,7 +289,7 @@ export function AnnotationSettingsPanel({
               {/* Colors */}
               <div className="grid grid-cols-2 gap-4">
                 <div>
-                  <label className="text-xs font-medium text-slate-200 mb-2 block">Text Color</label>
+                  <label className="text-xs font-medium text-slate-200 mb-2 block">{t('annotations.textColor')}</label>
                   <Popover>
                     <PopoverTrigger asChild>
                       <Button 
@@ -314,7 +321,7 @@ export function AnnotationSettingsPanel({
                   </Popover>
                 </div>
                 <div>
-                  <label className="text-xs font-medium text-slate-200 mb-2 block">Background</label>
+                  <label className="text-xs font-medium text-slate-200 mb-2 block">{t('annotations.background')}</label>
                   <Popover>
                     <PopoverTrigger asChild>
                       <Button 
@@ -331,7 +338,7 @@ export function AnnotationSettingsPanel({
                           />
                         </div>
                         <span className="text-xs text-slate-300 truncate flex-1 text-left">
-                          {annotation.style.backgroundColor === 'transparent' ? 'None' : 'Color'}
+                          {annotation.style.backgroundColor === 'transparent' ? t('annotations.none') : 'Color'}
                         </span>
                         <ChevronDown className="h-3 w-3 opacity-50" />
                       </Button>
@@ -355,7 +362,7 @@ export function AnnotationSettingsPanel({
                           onStyleChange({ backgroundColor: 'transparent' });
                         }}
                       >
-                        Clear Background
+                        {t('annotations.clearBackground')}
                       </Button>
                     </PopoverContent>
                   </Popover>
@@ -381,7 +388,7 @@ export function AnnotationSettingsPanel({
               className="w-full gap-2 bg-white/5 text-slate-200 border-white/10 hover:bg-[#2563EB] hover:text-white hover:border-[#2563EB] transition-all py-8"
             >
               <Upload className="w-5 h-5" />
-              Upload Image
+              {t('annotations.uploadImage')}
             </Button>
 
             {annotation.content && annotation.content.startsWith('data:image') && (
@@ -395,13 +402,13 @@ export function AnnotationSettingsPanel({
             )}
 
             <p className="text-xs text-slate-500 text-center leading-relaxed">
-              Supported formats: JPG, PNG, GIF, WebP
+              {t('annotations.supportedFormats')}
             </p>
           </TabsContent>
 
           <TabsContent value="figure" className="mt-0 space-y-4">
             <div>
-              <label className="text-xs font-medium text-slate-200 mb-3 block">Arrow Direction</label>
+              <label className="text-xs font-medium text-slate-200 mb-3 block">{t('annotations.arrowDirection')}</label>
               <div className="grid grid-cols-4 gap-2">
                 {([
                   'up', 'down', 'left', 'right',
@@ -437,7 +444,7 @@ export function AnnotationSettingsPanel({
 
             <div>
               <label className="text-xs font-medium text-slate-200 mb-2 block">
-                Stroke Width: {annotation.figureData?.strokeWidth || 4}px
+                {t('annotations.strokeWidth', undefined, { width: annotation.figureData?.strokeWidth || 4 })}
               </label>
               <Slider
                 value={[annotation.figureData?.strokeWidth || 4]}
@@ -456,7 +463,7 @@ export function AnnotationSettingsPanel({
             </div>
 
             <div>
-              <label className="text-xs font-medium text-slate-200 mb-2 block">Arrow Color</label>
+              <label className="text-xs font-medium text-slate-200 mb-2 block">{t('annotations.arrowColor')}</label>
               <Popover>
                 <PopoverTrigger asChild>
                   <Button 
@@ -501,18 +508,18 @@ export function AnnotationSettingsPanel({
           className="w-full gap-2 bg-red-500/10 text-red-400 border border-red-500/20 hover:bg-red-500/20 hover:border-red-500/30 transition-all mt-4"
         >
           <Trash2 className="w-4 h-4" />
-          Delete Annotation
+          {t('annotations.deleteAnnotation')}
         </Button>
 
         <div className="mt-6 p-3 bg-white/5 rounded-lg border border-white/5">
           <div className="flex items-center gap-2 mb-2 text-slate-300">
             <Info className="w-3.5 h-3.5" />
-            <span className="text-xs font-medium">Shortcuts & Tips</span>
+            <span className="text-xs font-medium">{t('annotations.shortcutsAndTips')}</span>
           </div>
           <ul className="text-[10px] text-slate-400 space-y-1.5 list-disc pl-3 leading-relaxed">
-            <li>Move playhead to overlapping annotation section and select an item.</li>
-            <li>Use <kbd className="px-1 py-0.5 bg-white/10 rounded text-slate-300 font-mono">Tab</kbd> to cycle through overlapping items.</li>
-            <li>Use <kbd className="px-1 py-0.5 bg-white/10 rounded text-slate-300 font-mono">Shift+Tab</kbd> to cycle backwards.</li>
+            <li>{t('annotations.tipSelectAnnotation')}</li>
+            <li>{t('annotations.tipCycleForward')}</li>
+            <li>{t('annotations.tipCycleBackward')}</li>
           </ul>
         </div>
       </div>
diff --git a/src/components/video-editor/ExportDialog.tsx b/src/components/video-editor/ExportDialog.tsx
index 2ba03797..2b5267e6 100644
--- a/src/components/video-editor/ExportDialog.tsx
+++ b/src/components/video-editor/ExportDialog.tsx
@@ -3,6 +3,7 @@ import { X, Download, Loader2 } from 'lucide-react';
 import { Button } from '@/components/ui/button';
 import type { ExportProgress } from '@/lib/exporter';
 import { toast } from 'sonner'; // Add this import
+import { useScopedT } from "../../contexts/I18nContext";
 
 
 interface ExportDialogProps {
@@ -30,6 +31,7 @@ export function ExportDialog({
   exportFormat = 'mp4',
   exportedFilePath, // Add this line
 }: ExportDialogProps) {
+  const t = useScopedT('dialogs');
   const [showSuccess, setShowSuccess] = useState(false);
 
   // Reset showSuccess when a new export starts or dialog reopens
@@ -68,21 +70,21 @@ export function ExportDialog({
   
   // Get status message based on phase
   const getStatusMessage = () => {
-    if (error) return 'Please try again';
+    if (error) return t('export.pleaseTryAgain');
     if (isCompiling || isFinalizing) {
       if (renderProgress !== undefined && renderProgress > 0) {
-        return `Compiling GIF... ${renderProgress}%`;
+        return t('export.compilingGifProgress', undefined, { progress: renderProgress });
       }
-      return 'Compiling GIF... This may take a while';
+      return t('export.compilingGifWait');
     }
-    return 'This may take a moment...';
+    return t('export.takeMoment');
   };
 
   // Get title based on phase
   const getTitle = () => {
-    if (error) return 'Export Failed';
-    if (isCompiling || isFinalizing) return 'Compiling GIF';
-    return `Exporting ${formatLabel}`;
+    if (error) return t('export.exportFailed');
+    if (isCompiling || isFinalizing) return t('export.compilingGifTitle');
+    return t('export.exportingFormat', undefined, { format: formatLabel });
   };
 
   const handleClickShowInFolder = async () => {
@@ -117,15 +119,15 @@ export function ExportDialog({
                   <Download className="w-6 h-6 text-[#2563EB]" />
                 </div>
                 <div className="flex flex-col gap-2">
-                  <span className="text-xl font-bold text-slate-200 block">Export Complete</span>
-                  <span className="text-sm text-slate-400">Your {formatLabel.toLowerCase()} is ready</span>
+                  <span className="text-xl font-bold text-slate-200 block">{t('export.exportComplete')}</span>
+                  <span className="text-sm text-slate-400">{t('export.formatReady', undefined, { format: formatLabel.toLowerCase() })}</span>
                   {exportedFilePath && (
                     <Button
                       variant="secondary"
                       onClick={handleClickShowInFolder}
                       className="mt-2 w-fit px-3 py-1 text-sm rounded-md bg-white/10 hover:bg-white/20 text-slate-200"
                     >
-                      Show in Folder
+                      {t('export.showInFolder')}
                     </Button>
                   )}
                   {exportedFilePath && (
@@ -192,7 +194,7 @@ export function ExportDialog({
           <div className="space-y-6">
             <div className="space-y-2">
               <div className="flex justify-between text-xs font-medium text-slate-400 uppercase tracking-wider">
-                <span>{isCompiling || isFinalizing ? 'Compiling' : 'Rendering Frames'}</span>
+                <span>{isCompiling || isFinalizing ? t('export.compiling') : t('export.renderingFrames')}</span>
                 <span className="font-mono text-slate-200">
                   {isCompiling || isFinalizing ? (
                     renderProgress !== undefined && renderProgress > 0 ? (
@@ -200,7 +202,7 @@ export function ExportDialog({
                     ) : (
                       <span className="flex items-center gap-2">
                         <Loader2 className="w-3 h-3 animate-spin" />
-                        Processing...
+                        {t('export.processing')}
                       </span>
                     )
                   ) : (
@@ -244,14 +246,14 @@ export function ExportDialog({
             <div className="grid grid-cols-2 gap-4">
               <div className="bg-white/5 rounded-xl p-3 border border-white/5">
                 <div className="text-[10px] text-slate-500 uppercase tracking-wider mb-1">
-                  {isCompiling || isFinalizing ? 'Status' : 'Format'}
+                  {isCompiling || isFinalizing ? t('export.status') : t('export.format')}
                 </div>
                 <div className="text-slate-200 font-medium text-sm">
-                  {isCompiling || isFinalizing ? 'Compiling...' : formatLabel}
+                  {isCompiling || isFinalizing ? t('export.compilingStatus') : formatLabel}
                 </div>
               </div>
               <div className="bg-white/5 rounded-xl p-3 border border-white/5">
-                <div className="text-[10px] text-slate-500 uppercase tracking-wider mb-1">Frames</div>
+                <div className="text-[10px] text-slate-500 uppercase tracking-wider mb-1">{t('export.frames')}</div>
                 <div className="text-slate-200 font-medium text-sm">
                   {progress.currentFrame} / {progress.totalFrames}
                 </div>
@@ -265,7 +267,7 @@ export function ExportDialog({
                   variant="destructive"
                   className="w-full py-6 bg-red-500/10 text-red-400 border border-red-500/20 hover:bg-red-500/20 hover:border-red-500/30 transition-all rounded-xl"
                 >
-                  Cancel Export
+                  {t('export.cancelExport')}
                 </Button>
               </div>
             )}
@@ -275,7 +277,7 @@ export function ExportDialog({
         {showSuccess && (
           <div className="text-center py-4 animate-in zoom-in-95">
             <p className="text-lg text-slate-200 font-medium">
-              {formatLabel} saved successfully!
+              {t('export.savedSuccess', undefined, { format: formatLabel })}
             </p>
           </div>
         )}
diff --git a/src/components/video-editor/FormatSelector.tsx b/src/components/video-editor/FormatSelector.tsx
index 34c80375..223528b4 100644
--- a/src/components/video-editor/FormatSelector.tsx
+++ b/src/components/video-editor/FormatSelector.tsx
@@ -1,78 +1,80 @@
-import { Film, Image } from 'lucide-react';
-import { cn } from '@/lib/utils';
-import type { ExportFormat } from '@/lib/exporter/types';
+import { Film, Image } from "lucide-react";
+import { useScopedT } from "@/contexts/I18nContext";
+import type { ExportFormat } from "@/lib/exporter/types";
+import { cn } from "@/lib/utils";
 
 interface FormatSelectorProps {
-  selectedFormat: ExportFormat;
-  onFormatChange: (format: ExportFormat) => void;
-  disabled?: boolean;
+	selectedFormat: ExportFormat;
+	onFormatChange: (format: ExportFormat) => void;
+	disabled?: boolean;
 }
 
 interface FormatOption {
-  value: ExportFormat;
-  label: string;
-  description: string;
-  icon: React.ReactNode;
+	value: ExportFormat;
+	label: string;
+	description: string;
+	icon: React.ReactNode;
 }
 
-const formatOptions: FormatOption[] = [
-  {
-    value: 'mp4',
-    label: 'MP4 Video',
-    description: 'High quality video file',
-    icon: <Film className="w-5 h-5" />,
-  },
-  {
-    value: 'gif',
-    label: 'GIF Animation',
-    description: 'Animated image for sharing',
-    icon: <Image className="w-5 h-5" />,
-  },
-];
-
 export function FormatSelector({
-  selectedFormat,
-  onFormatChange,
-  disabled = false,
+	selectedFormat,
+	onFormatChange,
+	disabled = false,
 }: FormatSelectorProps) {
-  return (
-    <div className="grid grid-cols-2 gap-3">
-      {formatOptions.map((option) => {
-        const isSelected = selectedFormat === option.value;
-        return (
-          <button
-            key={option.value}
-            type="button"
-            disabled={disabled}
-            onClick={() => onFormatChange(option.value)}
-            className={cn(
-              'relative flex flex-col items-center gap-2 p-4 rounded-xl border transition-all duration-200',
-              'focus:outline-none focus:ring-2 focus:ring-[#2563EB]/50 focus:ring-offset-2 focus:ring-offset-[#09090b]',
-              isSelected
-                ? 'bg-[#2563EB]/10 border-[#2563EB]/50 text-white'
-                : 'bg-white/5 border-white/10 text-slate-400 hover:bg-white/10 hover:border-white/20 hover:text-slate-200',
-              disabled && 'opacity-50 cursor-not-allowed'
-            )}
-          >
-            <div
-              className={cn(
-                'w-10 h-10 rounded-full flex items-center justify-center transition-colors',
-                isSelected ? 'bg-[#2563EB]/20 text-[#2563EB]' : 'bg-white/5'
-              )}
-            >
-              {option.icon}
-            </div>
-            <div className="text-center">
-              <div className="font-medium text-sm">{option.label}</div>
-              <div className="text-xs text-slate-500 mt-0.5">{option.description}</div>
-            </div>
-            {isSelected && (
-              <div className="absolute top-2 right-2 w-2 h-2 rounded-full bg-[#2563EB]" />
-            )}
-          </button>
-        );
-      })}
-    </div>
-  );
-}
+	const t = useScopedT("editor");
 
+	const formatOptions: FormatOption[] = [
+		{
+			value: "mp4",
+			label: t("format.mp4Video"),
+			description: t("format.mp4Description"),
+			icon: <Film className="w-5 h-5" />,
+		},
+		{
+			value: "gif",
+			label: t("format.gifAnimation"),
+			description: t("format.gifDescription"),
+			icon: <Image className="w-5 h-5" />,
+		},
+	];
+
+	return (
+		<div className="grid grid-cols-2 gap-3">
+			{formatOptions.map((option) => {
+				const isSelected = selectedFormat === option.value;
+				return (
+					<button
+						key={option.value}
+						type="button"
+						disabled={disabled}
+						onClick={() => onFormatChange(option.value)}
+						className={cn(
+							"relative flex flex-col items-center gap-2 p-4 rounded-xl border transition-all duration-200",
+							"focus:outline-none focus:ring-2 focus:ring-[#2563EB]/50 focus:ring-offset-2 focus:ring-offset-[#09090b]",
+							isSelected
+								? "bg-[#2563EB]/10 border-[#2563EB]/50 text-white"
+								: "bg-white/5 border-white/10 text-slate-400 hover:bg-white/10 hover:border-white/20 hover:text-slate-200",
+							disabled && "opacity-50 cursor-not-allowed",
+						)}
+					>
+						<div
+							className={cn(
+								"w-10 h-10 rounded-full flex items-center justify-center transition-colors",
+								isSelected ? "bg-[#2563EB]/20 text-[#2563EB]" : "bg-white/5",
+							)}
+						>
+							{option.icon}
+						</div>
+						<div className="text-center">
+							<div className="font-medium text-sm">{option.label}</div>
+							<div className="text-xs text-slate-500 mt-0.5">{option.description}</div>
+						</div>
+						{isSelected && (
+							<div className="absolute top-2 right-2 w-2 h-2 rounded-full bg-[#2563EB]" />
+						)}
+					</button>
+				);
+			})}
+		</div>
+	);
+}
diff --git a/src/components/video-editor/GifOptionsPanel.tsx b/src/components/video-editor/GifOptionsPanel.tsx
index a4eb1e65..6db68f34 100644
--- a/src/components/video-editor/GifOptionsPanel.tsx
+++ b/src/components/video-editor/GifOptionsPanel.tsx
@@ -1,111 +1,118 @@
-import { Switch } from '@/components/ui/switch';
 import {
-  Select,
-  SelectContent,
-  SelectItem,
-  SelectTrigger,
-  SelectValue,
-} from '@/components/ui/select';
-import { GIF_FRAME_RATES, GIF_SIZE_PRESETS, type GifFrameRate, type GifSizePreset } from '@/lib/exporter/types';
+	Select,
+	SelectContent,
+	SelectItem,
+	SelectTrigger,
+	SelectValue,
+} from "@/components/ui/select";
+import { Switch } from "@/components/ui/switch";
+import { useScopedT } from "@/contexts/I18nContext";
+import {
+	GIF_FRAME_RATES,
+	GIF_SIZE_PRESETS,
+	type GifFrameRate,
+	type GifSizePreset,
+} from "@/lib/exporter/types";
 
 interface GifOptionsPanelProps {
-  frameRate: GifFrameRate;
-  onFrameRateChange: (rate: GifFrameRate) => void;
-  loop: boolean;
-  onLoopChange: (loop: boolean) => void;
-  sizePreset: GifSizePreset;
-  onSizePresetChange: (preset: GifSizePreset) => void;
-  outputDimensions: { width: number; height: number };
-  disabled?: boolean;
+	frameRate: GifFrameRate;
+	onFrameRateChange: (rate: GifFrameRate) => void;
+	loop: boolean;
+	onLoopChange: (loop: boolean) => void;
+	sizePreset: GifSizePreset;
+	onSizePresetChange: (preset: GifSizePreset) => void;
+	outputDimensions: { width: number; height: number };
+	disabled?: boolean;
 }
 
 export function GifOptionsPanel({
-  frameRate,
-  onFrameRateChange,
-  loop,
-  onLoopChange,
-  sizePreset,
-  onSizePresetChange,
-  outputDimensions,
-  disabled = false,
+	frameRate,
+	onFrameRateChange,
+	loop,
+	onLoopChange,
+	sizePreset,
+	onSizePresetChange,
+	outputDimensions,
+	disabled = false,
 }: GifOptionsPanelProps) {
-  const sizePresetOptions = Object.entries(GIF_SIZE_PRESETS).map(([key, value]) => ({
-    value: key as GifSizePreset,
-    label: value.label,
-  }));
+	const t = useScopedT("editor");
+	const sizePresetOptions = Object.entries(GIF_SIZE_PRESETS).map(([key, value]) => ({
+		value: key as GifSizePreset,
+		label: value.label,
+	}));
 
-  return (
-    <div className="space-y-4 animate-in slide-in-from-bottom-2 duration-200">
-      {/* Frame Rate */}
-      <div className="space-y-2">
-        <label className="text-xs font-medium text-slate-400 uppercase tracking-wider">
-          Frame Rate
-        </label>
-        <Select
-          value={String(frameRate)}
-          onValueChange={(value) => onFrameRateChange(Number(value) as GifFrameRate)}
-          disabled={disabled}
-        >
-          <SelectTrigger className="w-full bg-white/5 border-white/10 text-slate-200 hover:bg-white/10">
-            <SelectValue />
-          </SelectTrigger>
-          <SelectContent className="bg-[#1a1a1f] border-white/10 z-[100]">
-            {GIF_FRAME_RATES.map((rate) => (
-              <SelectItem
-                key={rate.value}
-                value={String(rate.value)}
-                className="text-slate-200 focus:bg-white/10 focus:text-white"
-              >
-                {rate.label}
-              </SelectItem>
-            ))}
-          </SelectContent>
-        </Select>
-      </div>
+	return (
+		<div className="space-y-4 animate-in slide-in-from-bottom-2 duration-200">
+			{/* Frame Rate */}
+			<div className="space-y-2">
+				<label className="text-xs font-medium text-slate-400 uppercase tracking-wider">
+					{t("gifOptions.frameRate")}
+				</label>
+				<Select
+					value={String(frameRate)}
+					onValueChange={(value) => onFrameRateChange(Number(value) as GifFrameRate)}
+					disabled={disabled}
+				>
+					<SelectTrigger className="w-full bg-white/5 border-white/10 text-slate-200 hover:bg-white/10">
+						<SelectValue />
+					</SelectTrigger>
+					<SelectContent className="bg-[#1a1a1f] border-white/10 z-[100]">
+						{GIF_FRAME_RATES.map((rate) => (
+							<SelectItem
+								key={rate.value}
+								value={String(rate.value)}
+								className="text-slate-200 focus:bg-white/10 focus:text-white"
+							>
+								{rate.label}
+							</SelectItem>
+						))}
+					</SelectContent>
+				</Select>
+			</div>
 
-      {/* Size Preset */}
-      <div className="space-y-2">
-        <label className="text-xs font-medium text-slate-400 uppercase tracking-wider">
-          Output Size
-        </label>
-        <Select
-          value={sizePreset}
-          onValueChange={(value) => onSizePresetChange(value as GifSizePreset)}
-          disabled={disabled}
-        >
-          <SelectTrigger className="w-full bg-white/5 border-white/10 text-slate-200 hover:bg-white/10">
-            <SelectValue />
-          </SelectTrigger>
-          <SelectContent className="bg-[#1a1a1f] border-white/10 z-[100]">
-            {sizePresetOptions.map((option) => (
-              <SelectItem
-                key={option.value}
-                value={option.value}
-                className="text-slate-200 focus:bg-white/10 focus:text-white"
-              >
-                {option.label}
-              </SelectItem>
-            ))}
-          </SelectContent>
-        </Select>
-        <div className="text-xs text-slate-500">
-          Output: {outputDimensions.width} × {outputDimensions.height}px
-        </div>
-      </div>
+			{/* Size Preset */}
+			<div className="space-y-2">
+				<label className="text-xs font-medium text-slate-400 uppercase tracking-wider">
+					{t("gifOptions.outputSize")}
+				</label>
+				<Select
+					value={sizePreset}
+					onValueChange={(value) => onSizePresetChange(value as GifSizePreset)}
+					disabled={disabled}
+				>
+					<SelectTrigger className="w-full bg-white/5 border-white/10 text-slate-200 hover:bg-white/10">
+						<SelectValue />
+					</SelectTrigger>
+					<SelectContent className="bg-[#1a1a1f] border-white/10 z-[100]">
+						{sizePresetOptions.map((option) => (
+							<SelectItem
+								key={option.value}
+								value={option.value}
+								className="text-slate-200 focus:bg-white/10 focus:text-white"
+							>
+								{option.label}
+							</SelectItem>
+						))}
+					</SelectContent>
+				</Select>
+				<div className="text-xs text-slate-500">
+					{t("gifOptions.outputDimensions", undefined, {
+						width: String(outputDimensions.width),
+						height: String(outputDimensions.height),
+					})}
+				</div>
+			</div>
 
-      {/* Loop Toggle */}
-      <div className="flex items-center justify-between py-2">
-        <div>
-          <label className="text-sm font-medium text-slate-200">Loop Animation</label>
-          <p className="text-xs text-slate-500">GIF will play continuously</p>
-        </div>
-        <Switch
-          checked={loop}
-          onCheckedChange={onLoopChange}
-          disabled={disabled}
-        />
-      </div>
-    </div>
-  );
+			{/* Loop Toggle */}
+			<div className="flex items-center justify-between py-2">
+				<div>
+					<label className="text-sm font-medium text-slate-200">
+						{t("gifOptions.loopAnimation")}
+					</label>
+					<p className="text-xs text-slate-500">{t("gifOptions.loopDescription")}</p>
+				</div>
+				<Switch checked={loop} onCheckedChange={onLoopChange} disabled={disabled} />
+			</div>
+		</div>
+	);
 }
-
diff --git a/src/components/video-editor/KeyboardShortcutsHelp.tsx b/src/components/video-editor/KeyboardShortcutsHelp.tsx
index 101948e5..c228b4b9 100644
--- a/src/components/video-editor/KeyboardShortcutsHelp.tsx
+++ b/src/components/video-editor/KeyboardShortcutsHelp.tsx
@@ -1,66 +1,78 @@
 import { HelpCircle, Settings2 } from "lucide-react";
-import { useState, useEffect } from "react";
-import { formatShortcut } from "@/utils/platformUtils";
+import { useEffect, useState } from "react";
+import { useScopedT } from "@/contexts/I18nContext";
 import { useShortcuts } from "@/contexts/ShortcutsContext";
-import { formatBinding, SHORTCUT_LABELS, SHORTCUT_ACTIONS } from "@/lib/shortcuts";
+import { formatBinding, SHORTCUT_ACTIONS, SHORTCUT_LABELS } from "@/lib/shortcuts";
+import { formatShortcut } from "@/utils/platformUtils";
 
 export function KeyboardShortcutsHelp() {
-  const { shortcuts, isMac, openConfig } = useShortcuts();
+	const { shortcuts, isMac, openConfig } = useShortcuts();
+	const t = useScopedT("editor");
 
-  const [scrollLabels, setScrollLabels] = useState({ pan: 'Shift + Ctrl + Scroll', zoom: 'Ctrl + Scroll' });
+	const [scrollLabels, setScrollLabels] = useState({
+		pan: "Shift + Ctrl + Scroll",
+		zoom: "Ctrl + Scroll",
+	});
 
-  useEffect(() => {
-    Promise.all([
-      formatShortcut(['shift', 'mod', 'Scroll']),
-      formatShortcut(['mod', 'Scroll']),
-    ]).then(([pan, zoom]) => setScrollLabels({ pan, zoom }));
-  }, []);
+	useEffect(() => {
+		Promise.all([
+			formatShortcut(["shift", "mod", "Scroll"]),
+			formatShortcut(["mod", "Scroll"]),
+		]).then(([pan, zoom]) => setScrollLabels({ pan, zoom }));
+	}, []);
 
-  return (
-    <div className="relative group">
-      <HelpCircle className="w-4 h-4 text-slate-500 hover:text-[#2563EB] transition-colors cursor-help" />
+	return (
+		<div className="relative group">
+			<HelpCircle className="w-4 h-4 text-slate-500 hover:text-[#2563EB] transition-colors cursor-help" />
 
-      <div className="absolute right-0 top-full mt-2 w-64 bg-[#09090b] border border-white/10 rounded-lg p-3 opacity-0 invisible group-hover:opacity-100 group-hover:visible transition-all duration-200 shadow-xl z-50">
-        <div className="flex items-center justify-between mb-2">
-          <span className="text-xs font-semibold text-slate-200">Keyboard Shortcuts</span>
-          <button
-            type="button"
-            onClick={openConfig}
-            title="Customize shortcuts"
-            className="flex items-center gap-1 text-[10px] text-slate-500 hover:text-[#2563EB] transition-colors"
-          >
-            <Settings2 className="w-3 h-3" />
-            Customize
-          </button>
-        </div>
+			<div className="absolute right-0 top-full mt-2 w-64 bg-[#09090b] border border-white/10 rounded-lg p-3 opacity-0 invisible group-hover:opacity-100 group-hover:visible transition-all duration-200 shadow-xl z-50">
+				<div className="flex items-center justify-between mb-2">
+					<span className="text-xs font-semibold text-slate-200">
+						{t("keyboardShortcuts.title")}
+					</span>
+					<button
+						type="button"
+						onClick={openConfig}
+						title={t("keyboardShortcuts.customizeTooltip")}
+						className="flex items-center gap-1 text-[10px] text-slate-500 hover:text-[#2563EB] transition-colors"
+					>
+						<Settings2 className="w-3 h-3" />
+						{t("keyboardShortcuts.customize")}
+					</button>
+				</div>
 
-        <div className="space-y-1.5 text-[10px]">
-          {SHORTCUT_ACTIONS.map((action) => (
-            <div key={action} className="flex items-center justify-between">
-              <span className="text-slate-400">{SHORTCUT_LABELS[action]}</span>
-              <kbd className="px-1 py-0.5 bg-white/5 border border-white/10 rounded text-[#2563EB] font-mono">
-                {formatBinding(shortcuts[action], isMac)}
-              </kbd>
-            </div>
-          ))}
+				<div className="space-y-1.5 text-[10px]">
+					{SHORTCUT_ACTIONS.map((action) => (
+						<div key={action} className="flex items-center justify-between">
+							<span className="text-slate-400">{SHORTCUT_LABELS[action]}</span>
+							<kbd className="px-1 py-0.5 bg-white/5 border border-white/10 rounded text-[#2563EB] font-mono">
+								{formatBinding(shortcuts[action], isMac)}
+							</kbd>
+						</div>
+					))}
 
-          <div className="pt-1 border-t border-white/5 mt-1">
-            <div className="flex items-center justify-between">
-              <span className="text-slate-400">Pan Timeline</span>
-              <kbd className="px-1 py-0.5 bg-white/5 border border-white/10 rounded text-[#2563EB] font-mono">{scrollLabels.pan}</kbd>
-            </div>
-            <div className="flex items-center justify-between mt-1.5">
-              <span className="text-slate-400">Zoom Timeline</span>
-              <kbd className="px-1 py-0.5 bg-white/5 border border-white/10 rounded text-[#2563EB] font-mono">{scrollLabels.zoom}</kbd>
-            </div>
-            <div className="flex items-center justify-between mt-1.5">
-              <span className="text-slate-400">Cycle Annotations</span>
-              <kbd className="px-1 py-0.5 bg-white/5 border border-white/10 rounded text-[#2563EB] font-mono">Tab</kbd>
-            </div>
-          </div>
-        </div>
-      </div>
-    </div>
-  );
+					<div className="pt-1 border-t border-white/5 mt-1">
+						<div className="flex items-center justify-between">
+							<span className="text-slate-400">{t("keyboardShortcuts.panTimeline")}</span>
+							<kbd className="px-1 py-0.5 bg-white/5 border border-white/10 rounded text-[#2563EB] font-mono">
+								{scrollLabels.pan}
+							</kbd>
+						</div>
+						<div className="flex items-center justify-between mt-1.5">
+							<span className="text-slate-400">{t("keyboardShortcuts.zoomTimeline")}</span>
+							<kbd className="px-1 py-0.5 bg-white/5 border border-white/10 rounded text-[#2563EB] font-mono">
+								{scrollLabels.zoom}
+							</kbd>
+						</div>
+						<div className="flex items-center justify-between mt-1.5">
+							<span className="text-slate-400">{t("keyboardShortcuts.cycleAnnotations")}</span>
+							<kbd className="px-1 py-0.5 bg-white/5 border border-white/10 rounded text-[#2563EB] font-mono">
+								{t("keyboardShortcuts.tab")}
+							</kbd>
+						</div>
+					</div>
+				</div>
+			</div>
+		</div>
+	);
 }
-
diff --git a/src/components/video-editor/PlaybackControls.tsx b/src/components/video-editor/PlaybackControls.tsx
index cfff545f..d6afac39 100644
--- a/src/components/video-editor/PlaybackControls.tsx
+++ b/src/components/video-editor/PlaybackControls.tsx
@@ -1,93 +1,91 @@
-import { Button } from "../ui/button";
-import { Play, Pause } from "lucide-react";
+import { Pause, Play } from "lucide-react";
+import { useScopedT } from "@/contexts/I18nContext";
 import { cn } from "@/lib/utils";
+import { Button } from "../ui/button";
 
 interface PlaybackControlsProps {
-  isPlaying: boolean;
-  currentTime: number;
-  duration: number;
-  onTogglePlayPause: () => void;
-  onSeek: (time: number) => void;
+	isPlaying: boolean;
+	currentTime: number;
+	duration: number;
+	onTogglePlayPause: () => void;
+	onSeek: (time: number) => void;
 }
 
 export default function PlaybackControls({
-  isPlaying,
-  currentTime,
-  duration,
-  onTogglePlayPause,
-  onSeek,
+	isPlaying,
+	currentTime,
+	duration,
+	onTogglePlayPause,
+	onSeek,
 }: PlaybackControlsProps) {
-  function formatTime(seconds: number) {
-    if (!isFinite(seconds) || isNaN(seconds) || seconds < 0) return '0:00';
-    const mins = Math.floor(seconds / 60);
-    const secs = Math.floor(seconds % 60);
-    return `${mins}:${secs.toString().padStart(2, '0')}`;
-  }
+	const t = useScopedT("editor");
+	function formatTime(seconds: number) {
+		if (!isFinite(seconds) || isNaN(seconds) || seconds < 0) return "0:00";
+		const mins = Math.floor(seconds / 60);
+		const secs = Math.floor(seconds % 60);
+		return `${mins}:${secs.toString().padStart(2, "0")}`;
+	}
 
-  function handleSeekChange(e: React.ChangeEvent<HTMLInputElement>) {
-    onSeek(parseFloat(e.target.value));
-  }
+	function handleSeekChange(e: React.ChangeEvent<HTMLInputElement>) {
+		onSeek(parseFloat(e.target.value));
+	}
 
-  const progress = duration > 0 ? (currentTime / duration) * 100 : 0;
+	const progress = duration > 0 ? (currentTime / duration) * 100 : 0;
 
-  return (
-    <div className="flex items-center gap-2 px-1 py-0.5 rounded-full bg-black/60 backdrop-blur-md border border-white/10 shadow-xl transition-all duration-300 hover:bg-black/70 hover:border-white/20">
-      <Button
-        onClick={onTogglePlayPause}
-        size="icon"
-        className={cn(
-          "w-8 h-8 rounded-full transition-all duration-200 border border-white/10",
-          isPlaying 
-            ? "bg-white/10 text-white hover:bg-white/20" 
-            : "bg-white text-black hover:bg-white/90 hover:scale-105 shadow-[0_0_15px_rgba(255,255,255,0.3)]"
-        )}
-        aria-label={isPlaying ? 'Pause' : 'Play'}
-      >
-        {isPlaying ? (
-          <Pause className="w-3.5 h-3.5 fill-current" />
-        ) : (
-          <Play className="w-3.5 h-3.5 fill-current ml-0.5" />
-        )}
-      </Button>
-      
-      <span className="text-[9px] font-medium text-slate-300 tabular-nums w-[30px] text-right">
-        {formatTime(currentTime)}
-      </span>
-      
-      <div className="flex-1 relative h-6 flex items-center group">
-        {/* Custom Track Background */}
-        <div className="absolute left-0 right-0 h-0.5 bg-white/10 rounded-full overflow-hidden">
-          <div 
-            className="h-full bg-[#2563EB] rounded-full"
-            style={{ width: `${progress}%` }}
-          />
-        </div>
-        
-        {/* Interactive Input */}
-        <input
-          type="range"
-          min="0"
-          max={duration || 100}
-          value={currentTime}
-          onChange={handleSeekChange}
-          step="0.01"
-          className="absolute inset-0 w-full h-full opacity-0 cursor-pointer z-10"
-        />
-        
-        {/* Custom Thumb (visual only, follows progress) */}
-        <div 
-          className="absolute w-2.5 h-2.5 bg-white rounded-full shadow-lg pointer-events-none group-hover:scale-125 transition-transform duration-100"
-          style={{ 
-            left: `${progress}%`,
-            transform: 'translateX(-50%)'
-          }}
-        />
-      </div>
-      
-      <span className="text-[9px] font-medium text-slate-500 tabular-nums w-[30px]">
-        {formatTime(duration)}
-      </span>
-    </div>
-  );
+	return (
+		<div className="flex items-center gap-2 px-1 py-0.5 rounded-full bg-black/60 backdrop-blur-md border border-white/10 shadow-xl transition-all duration-300 hover:bg-black/70 hover:border-white/20">
+			<Button
+				onClick={onTogglePlayPause}
+				size="icon"
+				className={cn(
+					"w-8 h-8 rounded-full transition-all duration-200 border border-white/10",
+					isPlaying
+						? "bg-white/10 text-white hover:bg-white/20"
+						: "bg-white text-black hover:bg-white/90 hover:scale-105 shadow-[0_0_15px_rgba(255,255,255,0.3)]",
+				)}
+				aria-label={isPlaying ? t("playback.pause") : t("playback.play")}
+			>
+				{isPlaying ? (
+					<Pause className="w-3.5 h-3.5 fill-current" />
+				) : (
+					<Play className="w-3.5 h-3.5 fill-current ml-0.5" />
+				)}
+			</Button>
+
+			<span className="text-[9px] font-medium text-slate-300 tabular-nums w-[30px] text-right">
+				{formatTime(currentTime)}
+			</span>
+
+			<div className="flex-1 relative h-6 flex items-center group">
+				{/* Custom Track Background */}
+				<div className="absolute left-0 right-0 h-0.5 bg-white/10 rounded-full overflow-hidden">
+					<div className="h-full bg-[#2563EB] rounded-full" style={{ width: `${progress}%` }} />
+				</div>
+
+				{/* Interactive Input */}
+				<input
+					type="range"
+					min="0"
+					max={duration || 100}
+					value={currentTime}
+					onChange={handleSeekChange}
+					step="0.01"
+					className="absolute inset-0 w-full h-full opacity-0 cursor-pointer z-10"
+				/>
+
+				{/* Custom Thumb (visual only, follows progress) */}
+				<div
+					className="absolute w-2.5 h-2.5 bg-white rounded-full shadow-lg pointer-events-none group-hover:scale-125 transition-transform duration-100"
+					style={{
+						left: `${progress}%`,
+						transform: "translateX(-50%)",
+					}}
+				/>
+			</div>
+
+			<span className="text-[9px] font-medium text-slate-500 tabular-nums w-[30px]">
+				{formatTime(duration)}
+			</span>
+		</div>
+	);
 }
-
diff --git a/src/components/video-editor/SettingsPanel.tsx b/src/components/video-editor/SettingsPanel.tsx
index bc12a142..39214bb6 100644
--- a/src/components/video-editor/SettingsPanel.tsx
+++ b/src/components/video-editor/SettingsPanel.tsx
@@ -10,6 +10,7 @@ import { useState } from "react";
 import Block from '@uiw/react-color-block';
 import { Trash2, Download, Crop, X, Bug, Upload, Star, Film, Image, Sparkles, Palette, Save, FolderOpen } from "lucide-react";
 import { toast } from "sonner";
+import { useI18n, useScopedT } from "../../contexts/I18nContext";
 import type { ZoomDepth, CropRegion, AnnotationRegion, AnnotationType, PlaybackSpeed } from "./types";
 import { SPEED_OPTIONS } from "./types";
 import { CropControl } from "./CropControl";
@@ -185,6 +186,8 @@ export function SettingsPanel({
   onSpeedChange,
   onSpeedDelete,
 }: SettingsPanelProps) {
+  const tSettings = useScopedT('settings');
+  const { t } = useI18n();
   const [wallpaperPreviewPaths, setWallpaperPreviewPaths] = useState<string[]>([]);
   const [customImages, setCustomImages] = useState<string[]>([]);
   const fileInputRef = useRef<HTMLInputElement>(null);
@@ -252,8 +255,8 @@ export function SettingsPanel({
     // Validate file type - only allow JPG/JPEG
     const validTypes = ['image/jpeg', 'image/jpg'];
     if (!validTypes.includes(file.type)) {
-      toast.error('Invalid file type', {
-        description: 'Please upload a JPG or JPEG image file.',
+      toast.error(tSettings('background.uploadError'), {
+        description: tSettings('background.uploadErrorDescription'),
       });
       event.target.value = '';
       return;
@@ -266,13 +269,13 @@ export function SettingsPanel({
       if (dataUrl) {
         setCustomImages(prev => [...prev, dataUrl]);
         onWallpaperChange(dataUrl);
-        toast.success('Custom image uploaded successfully!');
+        toast.success(tSettings('background.uploadSuccess'));
       }
     };
 
     reader.onerror = () => {
-      toast.error('Failed to upload image', {
-        description: 'There was an error reading the file.',
+      toast.error(t('common.failedToUploadImage'), {
+        description: t('common.errorReadingFile'),
       });
     };
 
@@ -314,7 +317,7 @@ export function SettingsPanel({
       <div className="flex-1 overflow-y-auto custom-scrollbar p-4 pb-0">
         <div className="mb-4">
           <div className="flex items-center justify-between mb-3">
-            <span className="text-sm font-medium text-slate-200">Zoom Level</span>
+            <span className="text-sm font-medium text-slate-200">{tSettings('zoom.level')}</span>
             <div className="flex items-center gap-2">
               {zoomEnabled && selectedZoomDepth && (
                 <span className="text-[10px] uppercase tracking-wider font-medium text-[#2563EB] bg-[#2563EB]/10 px-2 py-0.5 rounded-full">
@@ -348,7 +351,7 @@ export function SettingsPanel({
             })}
           </div>
           {!zoomEnabled && (
-            <p className="text-[10px] text-slate-500 mt-2 text-center">Select a zoom region to adjust</p>
+            <p className="text-[10px] text-slate-500 mt-2 text-center">{tSettings('zoom.selectRegion')}</p>
           )}
           {zoomEnabled && (
             <Button
@@ -358,7 +361,7 @@ export function SettingsPanel({
               className="mt-2 w-full gap-2 bg-red-500/10 text-red-400 border border-red-500/20 hover:bg-red-500/20 hover:border-red-500/30 transition-all h-8 text-xs"
             >
               <Trash2 className="w-3 h-3" />
-              Delete Zoom
+              {tSettings('zoom.deleteZoom')}
             </Button>
           )}
         </div>
@@ -372,14 +375,14 @@ export function SettingsPanel({
               className="w-full gap-2 bg-red-500/10 text-red-400 border border-red-500/20 hover:bg-red-500/20 hover:border-red-500/30 transition-all h-8 text-xs"
             >
               <Trash2 className="w-3 h-3" />
-              Delete Trim Region
+              {tSettings('trim.deleteRegion')}
             </Button>
           </div>
         )}
 
         <div className="mb-4">
           <div className="flex items-center justify-between mb-3">
-            <span className="text-sm font-medium text-slate-200">Playback Speed</span>
+            <span className="text-sm font-medium text-slate-200">{tSettings('speed.playbackSpeed')}</span>
             {selectedSpeedId && selectedSpeedValue && (
               <span className="text-[10px] uppercase tracking-wider font-medium text-[#d97706] bg-[#d97706]/10 px-2 py-0.5 rounded-full">
                 {SPEED_OPTIONS.find(o => o.speed === selectedSpeedValue)?.label ?? `${selectedSpeedValue}×`}
@@ -410,7 +413,7 @@ export function SettingsPanel({
             })}
           </div>
           {!selectedSpeedId && (
-            <p className="text-[10px] text-slate-500 mt-2 text-center">Select a speed region to adjust</p>
+            <p className="text-[10px] text-slate-500 mt-2 text-center">{tSettings('speed.selectRegion')}</p>
           )}
           {selectedSpeedId && (
             <Button
@@ -420,7 +423,7 @@ export function SettingsPanel({
               className="mt-2 w-full gap-2 bg-red-500/10 text-red-400 border border-red-500/20 hover:bg-red-500/20 hover:border-red-500/30 transition-all h-8 text-xs"
             >
               <Trash2 className="w-3 h-3" />
-              Delete Speed Region
+              {tSettings('speed.deleteRegion')}
             </Button>
           )}
         </div>
@@ -430,13 +433,13 @@ export function SettingsPanel({
             <AccordionTrigger className="py-2.5 hover:no-underline">
               <div className="flex items-center gap-2">
                 <Sparkles className="w-4 h-4 text-[#2563EB]" />
-                <span className="text-xs font-medium">Video Effects</span>
+                <span className="text-xs font-medium">{tSettings('effects.title')}</span>
               </div>
             </AccordionTrigger>
             <AccordionContent className="pb-3">
               <div className="grid grid-cols-2 gap-2 mb-3">
                 <div className="flex items-center justify-between p-2 rounded-lg bg-white/5 border border-white/5">
-                  <div className="text-[10px] font-medium text-slate-300">Show Cursor</div>
+                  <div className="text-[10px] font-medium text-slate-300">{tSettings('effects.showCursor')}</div>
                   <Switch
                     checked={showCursor}
                     onCheckedChange={onShowCursorChange}
@@ -445,7 +448,7 @@ export function SettingsPanel({
                 </div>
                 <div className="flex items-center justify-between p-2 rounded-lg bg-white/5 border border-white/5">
                   <div>
-                    <div className="text-[10px] font-medium text-slate-300">Loop cursor</div>
+                    <div className="text-[10px] font-medium text-slate-300">{tSettings('effects.loopCursor')}</div>
                   </div>
                   <Switch
                     checked={loopCursor}
@@ -455,7 +458,7 @@ export function SettingsPanel({
                 </div>
                 <div className="p-2 rounded-lg bg-white/5 border border-white/5">
                   <div className="flex items-center justify-between mb-1">
-                    <div className="text-[10px] font-medium text-slate-300">Background Blur</div>
+                    <div className="text-[10px] font-medium text-slate-300">{tSettings('effects.backgroundBlur')}</div>
                     <span className="text-[10px] text-slate-500 font-mono">{backgroundBlur.toFixed(1)}px</span>
                   </div>
                   <Slider
@@ -472,7 +475,7 @@ export function SettingsPanel({
               <div className="grid grid-cols-2 gap-2 mb-3">
                 <div className="p-2 rounded-lg bg-white/5 border border-white/5">
                   <div className="flex items-center justify-between mb-1">
-                    <div className="text-[10px] font-medium text-slate-300">Zoom Motion Blur</div>
+                    <div className="text-[10px] font-medium text-slate-300">{tSettings('effects.zoomMotionBlur')}</div>
                     <span className="text-[10px] text-slate-500 font-mono">{zoomMotionBlur.toFixed(2)}×</span>
                   </div>
                   <Slider
@@ -486,7 +489,7 @@ export function SettingsPanel({
                 </div>
 
                 <div className="flex items-center justify-between p-2 rounded-lg bg-white/5 border border-white/5">
-                  <div className="text-[10px] font-medium text-slate-300">Connect Zooms</div>
+                  <div className="text-[10px] font-medium text-slate-300">{tSettings('effects.connectZooms')}</div>
                   <Switch
                     checked={connectZooms}
                     onCheckedChange={onConnectZoomsChange}
@@ -498,7 +501,7 @@ export function SettingsPanel({
               <div className="grid grid-cols-2 gap-2 mb-3">
                 <div className="p-2 rounded-lg bg-white/5 border border-white/5">
                   <div className="flex items-center justify-between mb-1">
-                    <div className="text-[10px] font-medium text-slate-300">Cursor Size</div>
+                    <div className="text-[10px] font-medium text-slate-300">{tSettings('effects.cursorSize')}</div>
                     <span className="text-[10px] text-slate-500 font-mono">{cursorSize.toFixed(2)}×</span>
                   </div>
                   <Slider
@@ -512,8 +515,8 @@ export function SettingsPanel({
                 </div>
                 <div className="p-2 rounded-lg bg-white/5 border border-white/5">
                   <div className="flex items-center justify-between mb-1">
-                    <div className="text-[10px] font-medium text-slate-300">Cursor Smoothing</div>
-                    <span className="text-[10px] text-slate-500 font-mono">{cursorSmoothing <= 0 ? 'Off' : cursorSmoothing.toFixed(2)}</span>
+                    <div className="text-[10px] font-medium text-slate-300">{tSettings('effects.cursorSmoothing')}</div>
+                    <span className="text-[10px] text-slate-500 font-mono">{cursorSmoothing <= 0 ? tSettings('effects.off') : cursorSmoothing.toFixed(2)}</span>
                   </div>
                   <Slider
                     value={[cursorSmoothing]}
@@ -529,7 +532,7 @@ export function SettingsPanel({
               <div className="grid grid-cols-2 gap-2 mb-3">
                 <div className="p-2 rounded-lg bg-white/5 border border-white/5">
                   <div className="flex items-center justify-between mb-1">
-                    <div className="text-[10px] font-medium text-slate-300">Cursor Motion Blur</div>
+                    <div className="text-[10px] font-medium text-slate-300">{tSettings('effects.cursorMotionBlur')}</div>
                     <span className="text-[10px] text-slate-500 font-mono">{cursorMotionBlur.toFixed(2)}×</span>
                   </div>
                   <Slider
@@ -543,7 +546,7 @@ export function SettingsPanel({
                 </div>
                 <div className="p-2 rounded-lg bg-white/5 border border-white/5">
                   <div className="flex items-center justify-between mb-1">
-                    <div className="text-[10px] font-medium text-slate-300">Cursor Click Bounce</div>
+                    <div className="text-[10px] font-medium text-slate-300">{tSettings('effects.cursorClickBounce')}</div>
                     <span className="text-[10px] text-slate-500 font-mono">{cursorClickBounce.toFixed(2)}×</span>
                   </div>
                   <Slider
@@ -560,7 +563,7 @@ export function SettingsPanel({
               <div className="grid grid-cols-2 gap-2">
                 <div className="p-2 rounded-lg bg-white/5 border border-white/5">
                   <div className="flex items-center justify-between mb-1">
-                    <div className="text-[10px] font-medium text-slate-300">Shadow</div>
+                    <div className="text-[10px] font-medium text-slate-300">{tSettings('effects.shadow')}</div>
                     <span className="text-[10px] text-slate-500 font-mono">{Math.round(shadowIntensity * 100)}%</span>
                   </div>
                   <Slider
@@ -574,7 +577,7 @@ export function SettingsPanel({
                 </div>
                 <div className="p-2 rounded-lg bg-white/5 border border-white/5">
                   <div className="flex items-center justify-between mb-1">
-                    <div className="text-[10px] font-medium text-slate-300">Roundness</div>
+                    <div className="text-[10px] font-medium text-slate-300">{tSettings('effects.roundness')}</div>
                     <span className="text-[10px] text-slate-500 font-mono">{borderRadius}px</span>
                   </div>
                   <Slider
@@ -588,7 +591,7 @@ export function SettingsPanel({
                 </div>
                 <div className="p-2 rounded-lg bg-white/5 border border-white/5">
                   <div className="flex items-center justify-between mb-1">
-                    <div className="text-[10px] font-medium text-slate-300">Padding</div>
+                    <div className="text-[10px] font-medium text-slate-300">{tSettings('effects.padding')}</div>
                     <span className="text-[10px] text-slate-500 font-mono">{padding}%</span>
                   </div>
                   <Slider
@@ -608,7 +611,7 @@ export function SettingsPanel({
                 className="w-full mt-2 gap-1.5 bg-white/5 text-slate-200 border-white/10 hover:bg-white/10 hover:border-white/20 hover:text-white text-[10px] h-8 transition-all"
               >
                 <Crop className="w-3 h-3" />
-                Crop Video
+                {tSettings('crop.title')}
               </Button>
             </AccordionContent>
           </AccordionItem>
@@ -617,15 +620,15 @@ export function SettingsPanel({
             <AccordionTrigger className="py-2.5 hover:no-underline">
               <div className="flex items-center gap-2">
                 <Palette className="w-4 h-4 text-[#2563EB]" />
-                <span className="text-xs font-medium">Background</span>
+                <span className="text-xs font-medium">{tSettings('background.title')}</span>
               </div>
             </AccordionTrigger>
             <AccordionContent className="pb-3">
               <Tabs defaultValue="image" className="w-full">
                 <TabsList className="mb-2 bg-white/5 border border-white/5 p-0.5 w-full grid grid-cols-3 h-7 rounded-lg">
-                  <TabsTrigger value="image" className="data-[state=active]:bg-[#2563EB] data-[state=active]:text-white text-slate-400 text-[10px] py-1 rounded-md transition-all">Image</TabsTrigger>
-                  <TabsTrigger value="color" className="data-[state=active]:bg-[#2563EB] data-[state=active]:text-white text-slate-400 text-[10px] py-1 rounded-md transition-all">Color</TabsTrigger>
-                  <TabsTrigger value="gradient" className="data-[state=active]:bg-[#2563EB] data-[state=active]:text-white text-slate-400 text-[10px] py-1 rounded-md transition-all">Gradient</TabsTrigger>
+                  <TabsTrigger value="image" className="data-[state=active]:bg-[#2563EB] data-[state=active]:text-white text-slate-400 text-[10px] py-1 rounded-md transition-all">{tSettings('background.image')}</TabsTrigger>
+                  <TabsTrigger value="color" className="data-[state=active]:bg-[#2563EB] data-[state=active]:text-white text-slate-400 text-[10px] py-1 rounded-md transition-all">{tSettings('background.color')}</TabsTrigger>
+                  <TabsTrigger value="gradient" className="data-[state=active]:bg-[#2563EB] data-[state=active]:text-white text-slate-400 text-[10px] py-1 rounded-md transition-all">{tSettings('background.gradient')}</TabsTrigger>
                 </TabsList>
                 
                 <div className="max-h-[min(200px,25vh)] overflow-y-auto custom-scrollbar">
@@ -643,7 +646,7 @@ export function SettingsPanel({
                       className="w-full gap-2 bg-white/5 text-slate-200 border-white/10 hover:bg-[#2563EB] hover:text-white hover:border-[#2563EB] transition-all h-7 text-[10px]"
                     >
                       <Upload className="w-3 h-3" />
-                      Upload Custom
+                      {tSettings('background.uploadCustom')}
                     </Button>
 
                     <div className="grid grid-cols-7 gap-1.5">
@@ -759,8 +762,8 @@ export function SettingsPanel({
           <div className="fixed top-1/2 left-1/2 transform -translate-x-1/2 -translate-y-1/2 z-[60] bg-[#09090b] rounded-2xl shadow-2xl border border-white/10 p-8 w-[90vw] max-w-5xl max-h-[90vh] overflow-auto animate-in zoom-in-95 duration-200">
             <div className="flex items-center justify-between mb-6">
               <div>
-                <span className="text-xl font-bold text-slate-200">Crop Video</span>
-                <p className="text-sm text-slate-400 mt-2">Drag on each side to adjust the crop area</p>
+                <span className="text-xl font-bold text-slate-200">{tSettings('crop.title')}</span>
+                <p className="text-sm text-slate-400 mt-2">{tSettings('crop.instruction')}</p>
               </div>
               <Button
                 variant="ghost"
@@ -783,7 +786,7 @@ export function SettingsPanel({
                 size="lg"
                 className="bg-[#2563EB] hover:bg-[#2563EB]/90 text-white"
               >
-                Done
+                {t('common.actions.done')}
               </Button>
             </div>
           </div>
@@ -802,7 +805,7 @@ export function SettingsPanel({
             )}
           >
             <Film className="w-3.5 h-3.5" />
-            MP4
+            {tSettings('export.mp4')}
           </button>
           <button
             onClick={() => onExportFormatChange?.('gif')}
@@ -814,7 +817,7 @@ export function SettingsPanel({
             )}
           >
             <Image className="w-3.5 h-3.5" />
-            GIF
+            {tSettings('export.gif')}
           </button>
         </div>
 
@@ -827,7 +830,7 @@ export function SettingsPanel({
                 exportQuality === 'medium' ? "bg-white text-black" : "text-slate-400 hover:text-slate-200"
               )}
             >
-              Low
+              {tSettings('export.quality.low')}
             </button>
             <button
               onClick={() => onExportQualityChange?.('good')}
@@ -836,7 +839,7 @@ export function SettingsPanel({
                 exportQuality === 'good' ? "bg-white text-black" : "text-slate-400 hover:text-slate-200"
               )}
             >
-              Medium
+              {tSettings('export.quality.medium')}
             </button>
             <button
               onClick={() => onExportQualityChange?.('source')}
@@ -845,7 +848,7 @@ export function SettingsPanel({
                 exportQuality === 'source' ? "bg-white text-black" : "text-slate-400 hover:text-slate-200"
               )}
             >
-              High
+              {tSettings('export.quality.high')}
             </button>
           </div>
         )}
@@ -885,7 +888,7 @@ export function SettingsPanel({
             <div className="flex items-center justify-between">
               <span className="text-[10px] text-slate-500">{gifOutputDimensions.width} × {gifOutputDimensions.height}px</span>
               <div className="flex items-center gap-2">
-                <span className="text-[10px] text-slate-400">Loop</span>
+                <span className="text-[10px] text-slate-400">{tSettings('export.loop')}</span>
                 <Switch
                   checked={gifLoop}
                   onCheckedChange={onGifLoopChange}
@@ -904,7 +907,7 @@ export function SettingsPanel({
             className="h-8 text-[10px] font-medium gap-1.5 bg-white/5 border-white/10 text-slate-300 hover:bg-white/10"
           >
             <FolderOpen className="w-3.5 h-3.5" />
-            Load Project
+            {tSettings('export.loadProject')}
           </Button>
           <Button
             type="button"
@@ -913,7 +916,7 @@ export function SettingsPanel({
             className="h-8 text-[10px] font-medium gap-1.5 bg-white/5 border-white/10 text-slate-300 hover:bg-white/10"
           >
             <Save className="w-3.5 h-3.5" />
-            Save Project
+            {tSettings('export.saveProject')}
           </Button>
         </div>
 
@@ -924,7 +927,7 @@ export function SettingsPanel({
           className="w-full py-5 text-sm font-semibold flex items-center justify-center gap-2 bg-[#2563EB] text-white rounded-xl shadow-lg shadow-[#2563EB]/20 hover:bg-[#2563EB]/90 hover:scale-[1.02] active:scale-[0.98] transition-all duration-200"
         >
           <Download className="w-4 h-4" />
-          Export {exportFormat === 'gif' ? 'GIF' : 'Video'}
+          {tSettings('export.exportVideo', undefined, { format: exportFormat === 'gif' ? 'GIF' : 'Video' })}
         </Button>
 
         <div className="flex gap-2 mt-3">
@@ -936,7 +939,7 @@ export function SettingsPanel({
             className="flex-1 flex items-center justify-center gap-1.5 text-[10px] text-slate-500 hover:text-slate-300 py-1.5 transition-colors"
           >
             <Bug className="w-3 h-3 text-[#2563EB]" />
-            Report Bug
+            {tSettings('export.reportBug')}
           </button>
           <button
             type="button"
@@ -946,7 +949,7 @@ export function SettingsPanel({
             className="flex-1 flex items-center justify-center gap-1.5 text-[10px] text-slate-500 hover:text-slate-300 py-1.5 transition-colors"
           >
             <Star className="w-3 h-3 text-yellow-400" />
-            Star on GitHub
+            {tSettings('export.starOnGithub')}
           </button>
         </div>
       </div>
diff --git a/src/components/video-editor/ShortcutsConfigDialog.tsx b/src/components/video-editor/ShortcutsConfigDialog.tsx
index 0782abc8..5d55e420 100644
--- a/src/components/video-editor/ShortcutsConfigDialog.tsx
+++ b/src/components/video-editor/ShortcutsConfigDialog.tsx
@@ -17,10 +17,12 @@ import {
   type ShortcutsConfig,
 } from '@/lib/shortcuts';
 import { useShortcuts } from '@/contexts/ShortcutsContext';
+import { useScopedT } from '../../contexts/I18nContext';
 
 const MODIFIER_KEYS = new Set(['Control', 'Shift', 'Alt', 'Meta']);
 
 export function ShortcutsConfigDialog() {
+  const t = useScopedT('dialogs');
   const { shortcuts, isMac, isConfigOpen, closeConfig, setShortcuts, persistShortcuts } =
     useShortcuts();
 
@@ -61,7 +63,7 @@ export function ShortcutsConfigDialog() {
       setCaptureFor(null);
 
       if (found?.type === 'fixed') {
-        toast.error(`This shortcut is reserved for "${found.label}" and cannot be reassigned.`);
+        toast.error(t('shortcutsConfig.reserved', undefined, { label: found.label }));
         return;
       }
 
@@ -75,7 +77,7 @@ export function ShortcutsConfigDialog() {
 
     window.addEventListener('keydown', handleCapture, { capture: true });
     return () => window.removeEventListener('keydown', handleCapture, { capture: true });
-  }, [captureFor]);
+  }, [captureFor, t]);
 
   const handleSwap = useCallback(() => {
     if (!conflict || conflict.conflictWith.type !== 'configurable') return;
@@ -93,14 +95,14 @@ export function ShortcutsConfigDialog() {
   const handleSave = useCallback(async () => {
     setShortcuts(draft);
     await persistShortcuts(draft);
-    toast.success('Keyboard shortcuts saved');
+    toast.success(t('shortcutsConfig.saved'));
     closeConfig();
-  }, [draft, setShortcuts, persistShortcuts, closeConfig]);
+  }, [draft, setShortcuts, persistShortcuts, closeConfig, t]);
 
   const handleReset = useCallback(() => {
     setDraft({ ...DEFAULT_SHORTCUTS });
-    toast.info('Reset to default shortcuts — click Save to apply');
-  }, []);
+    toast.info(t('shortcutsConfig.resetNotice'));
+  }, [t]);
 
   const handleClose = useCallback(() => {
     setCaptureFor(null);
@@ -114,12 +116,12 @@ export function ShortcutsConfigDialog() {
         <DialogHeader>
           <DialogTitle className="flex items-center gap-2 text-sm">
             <Keyboard className="w-4 h-4 text-[#2563EB]" />
-            Keyboard Shortcuts
+            {t('shortcutsConfig.title')}
           </DialogTitle>
         </DialogHeader>
 
         <div className="space-y-0.5">
-          <p className="text-[10px] text-slate-500 mb-2 uppercase tracking-wide font-semibold">Configurable</p>
+          <p className="text-[10px] text-slate-500 mb-2 uppercase tracking-wide font-semibold">{t('shortcutsConfig.configurable')}</p>
           {SHORTCUT_ACTIONS.map((action) => {
             const isCapturing = captureFor === action;
             const hasConflict = conflict?.forAction === action;
@@ -133,7 +135,7 @@ export function ShortcutsConfigDialog() {
                       setConflict(null);
                       setCaptureFor(isCapturing ? null : action);
                     }}
-                    title={isCapturing ? 'Press Esc to cancel' : 'Click to change'}
+                    title={isCapturing ? t('shortcutsConfig.pressEscToCancel') : t('shortcutsConfig.clickToChange')}
                     className={[
                       'px-2 py-1 rounded text-xs font-mono border transition-all min-w-[90px] text-center select-none',
                       isCapturing
@@ -143,13 +145,13 @@ export function ShortcutsConfigDialog() {
                           : 'bg-white/5 border-white/10 text-slate-200 hover:border-[#2563EB]/50 hover:text-[#2563EB] cursor-pointer',
                     ].join(' ')}
                   >
-                    {isCapturing ? 'Press a key…' : formatBinding(draft[action], isMac)}
+                    {isCapturing ? t('shortcutsConfig.pressAKey') : formatBinding(draft[action], isMac)}
                   </button>
                 </div>
                 {hasConflict && conflict?.conflictWith.type === 'configurable' && (
                   <div className="flex items-center justify-between px-1 py-1.5 mb-0.5 bg-amber-500/10 border border-amber-500/20 rounded text-xs">
                     <span className="text-amber-400">
-                      ⚠ Already used by <strong>{SHORTCUT_LABELS[conflict.conflictWith.action]}</strong>
+                      {t('shortcutsConfig.alreadyUsedBy', undefined, { action: SHORTCUT_LABELS[conflict.conflictWith.action] })}
                     </span>
                     <div className="flex gap-1.5">
                       <button
@@ -157,14 +159,14 @@ export function ShortcutsConfigDialog() {
                         onClick={handleSwap}
                         className="px-2 py-0.5 bg-amber-500/20 hover:bg-amber-500/30 border border-amber-500/40 rounded text-amber-300 font-medium transition-colors"
                       >
-                        Swap
+                        {t('shortcutsConfig.swap')}
                       </button>
                       <button
                         type="button"
                         onClick={handleCancelConflict}
                         className="px-2 py-0.5 bg-white/5 hover:bg-white/10 border border-white/10 rounded text-slate-400 transition-colors"
                       >
-                        Cancel
+                        {t('shortcutsConfig.cancel')}
                       </button>
                     </div>
                   </div>
@@ -175,7 +177,7 @@ export function ShortcutsConfigDialog() {
         </div>
 
         <div className="space-y-0.5 mt-2">
-          <p className="text-[10px] text-slate-500 mb-2 uppercase tracking-wide font-semibold">Fixed</p>
+          <p className="text-[10px] text-slate-500 mb-2 uppercase tracking-wide font-semibold">{t('shortcutsConfig.fixed')}</p>
           {FIXED_SHORTCUTS.map(({ label, display }) => (
             <div
               key={label}
@@ -190,8 +192,7 @@ export function ShortcutsConfigDialog() {
         </div>
 
         <p className="text-[10px] text-slate-500 mt-1">
-          Click a shortcut then press the new key combination. Press{' '}
-          <span className="font-mono border border-white/10 rounded px-1">Esc</span> to cancel.
+          {t('shortcutsConfig.instructions')}
         </p>
 
         <DialogFooter className="flex gap-2 sm:justify-between mt-2">
@@ -202,18 +203,18 @@ export function ShortcutsConfigDialog() {
             onClick={handleReset}
           >
             <RotateCcw className="w-3 h-3" />
-            Reset to defaults
+            {t('shortcutsConfig.resetToDefaults')}
           </Button>
           <div className="flex gap-2">
             <Button variant="ghost" size="sm" onClick={handleClose}>
-              Cancel
+              {t('shortcutsConfig.cancel')}
             </Button>
             <Button
               size="sm"
               className="bg-[#2563EB] hover:bg-[#1d4ed8] text-white"
               onClick={handleSave}
             >
-              Save
+              {t('shortcutsConfig.save')}
             </Button>
           </div>
         </DialogFooter>
diff --git a/src/components/video-editor/TutorialHelp.tsx b/src/components/video-editor/TutorialHelp.tsx
index ab307b28..0b8cf343 100644
--- a/src/components/video-editor/TutorialHelp.tsx
+++ b/src/components/video-editor/TutorialHelp.tsx
@@ -1,146 +1,133 @@
-import {
-    Dialog,
-    DialogContent,
-    DialogDescription,
-    DialogHeader,
-    DialogTitle,
-    DialogTrigger,
-} from "@/components/ui/dialog";
+import { ArrowRight, HelpCircle, Scissors } from "lucide-react";
 import { Button } from "@/components/ui/button";
-import { HelpCircle, Scissors, ArrowRight } from "lucide-react";
+import {
+	Dialog,
+	DialogContent,
+	DialogDescription,
+	DialogHeader,
+	DialogTitle,
+	DialogTrigger,
+} from "@/components/ui/dialog";
+import { useScopedT } from "@/contexts/I18nContext";
 
 export function TutorialHelp() {
-    return (
-        <Dialog>
-            <DialogTrigger asChild>
-                <Button
-                    variant="ghost"
-                    size="sm"
-                    className="h-7 px-2 text-xs text-slate-400 hover:text-slate-200 hover:bg-white/10 transition-all gap-1.5"
-                >
-                    <HelpCircle className="w-3.5 h-3.5" />
-                    <span className="font-medium">How trimming works</span>
-                </Button>
-            </DialogTrigger>
-            <DialogContent className="max-w-2xl bg-[#09090b] border-white/10 [&>button]:text-slate-400 [&>button:hover]:text-white">
-                <DialogHeader>
-                    <DialogTitle className="text-xl font-semibold text-slate-200 flex items-center gap-2">
-                        <Scissors className="w-5 h-5 text-[#ef4444]" /> How Trimming Works
-                    </DialogTitle>
-                    <DialogDescription className="text-slate-400">
-                        Understanding how to cut out unwanted parts of your video.
-                    </DialogDescription>
-                </DialogHeader>
-                <div className="mt-4 space-y-8">
-                    {/* Explanation */}
-                    <div className="bg-white/5 rounded-lg p-4 border border-white/5">
-                        <p className="text-slate-300 leading-relaxed">
-                            The Trim tool works by defining the segments you want to
-                            <span className="text-[#ef4444] font-bold"> remove</span>. Any part
-                            of the timeline that is
-                            <span className="text-[#ef4444] font-bold"> covered</span> by a red
-                            trim segment will be cut out when you export.
-                        </p>
-                    </div>
-                    {/* Visual Illustration */}
-                    <div className="space-y-2">
-                        <h3 className="text-sm font-medium text-slate-400 uppercase tracking-wider">
-                            Visual Example
-                        </h3>
-                        <div className="relative h-24 bg-[#000] rounded-lg border border-white/10 flex items-center px-4 overflow-hidden select-none">
-                            {/* Background track (Kept parts) */}
-                            <div className="absolute inset-x-4 h-2 bg-slate-600 rounded-full overflow-hidden">
-                                {/* Solid line representing video */}
-                            </div>
-                            {/* Removed Segment 1 */}
-                            <div
-                                className="absolute left-[20%] h-8 bg-[#ef4444]/20 border border-[#ef4444] rounded flex flex-col items-center justify-center z-10"
-                                style={{ width: "20%" }}
-                            >
-                                <span className="text-[10px] font-bold text-[#ef4444] bg-black/50 px-1 rounded">
-                                    REMOVED
-                                </span>
-                            </div>
-                            {/* Removed Segment 2 */}
-                            <div
-                                className="absolute left-[65%] h-8 bg-[#ef4444]/20 border border-[#ef4444] rounded flex flex-col items-center justify-center z-10"
-                                style={{ width: "15%" }}
-                            >
-                                <span className="text-[10px] font-bold text-[#ef4444] bg-black/50 px-1 rounded">
-                                    REMOVED
-                                </span>
-                            </div>
-                            {/* Labels for kept parts */}
-                            <div className="absolute left-[5%] text-[10px] text-slate-400 font-medium">
-                                Kept
-                            </div>
-                            <div className="absolute left-[50%] text-[10px] text-slate-400 font-medium">
-                                Kept
-                            </div>
-                            <div className="absolute left-[90%] text-[10px] text-slate-400 font-medium">
-                                Kept
-                            </div>
-                        </div>
-                        <div className="flex justify-center mt-2">
-
-                            <ArrowRight className="w-4 h-4 text-slate-600 rotate-90" />
-                        </div>
-                        {/* Result */}
-                        <div className="relative h-12 bg-[#000] rounded-lg border border-white/10 flex items-center justify-center gap-1 px-4 select-none">
-                            <div
-                                className="h-8 bg-slate-700 rounded flex items-center justify-center opacity-80"
-                                style={{ width: "30%" }}
-                            >
-                                <span className="text-[10px] text-white font-medium">
-                                    Part 1
-                                </span>
-                            </div>
-                            <div
-                                className="h-8 bg-slate-700 rounded flex items-center justify-center opacity-80"
-                                style={{ width: "30%" }}
-                            >
-                                <span className="text-[10px] text-white font-medium">
-                                    Part 2
-                                </span>
-                            </div>
-                            <div
-                                className="h-8 bg-slate-700 rounded flex items-center justify-center opacity-80"
-                                style={{ width: "30%" }}
-                            >
-                                <span className="text-[10px] text-white font-medium">
-                                    Part 3
-                                </span>
-                            </div>
-                            <span className="absolute right-4 text-xs text-slate-400">
-                                Final Video
-                            </span>
-                        </div>
-                    </div>
-                    {/* Steps */}
-                    <div className="grid grid-cols-2 gap-4">
-                        <div className="p-3 rounded bg-white/5 border border-white/5">
-                            <div className="text-[#ef4444] font-bold mb-1">
-                                1. Add Trim
-                            </div>
-                            <p className="text-xs text-slate-400">
-                                Press
-                                <kbd className="bg-white/10 px-1 rounded text-slate-300">T</kbd>
-                                or click the scissors icon to mark a section for removal.
-                            </p>
-                        </div>
-                        <div className="p-3 rounded bg-white/5 border border-white/5">
-                            <div className="text-[#ef4444] font-bold mb-1">
-                                2. Adjust
-                            </div>
-                            <p className="text-xs text-slate-400">
-                                Drag the edges of the red region to cover exactly what you want
-                                to cut out.
-                            </p>
-                        </div>
-                    </div>
-                </div>
-            </DialogContent>
-        </Dialog>
-    );
+	const t = useScopedT("editor");
+	return (
+		<Dialog>
+			<DialogTrigger asChild>
+				<Button
+					variant="ghost"
+					size="sm"
+					className="h-7 px-2 text-xs text-slate-400 hover:text-slate-200 hover:bg-white/10 transition-all gap-1.5"
+				>
+					<HelpCircle className="w-3.5 h-3.5" />
+					<span className="font-medium">{t("tutorial.howTrimmingWorks")}</span>
+				</Button>
+			</DialogTrigger>
+			<DialogContent className="max-w-2xl bg-[#09090b] border-white/10 [&>button]:text-slate-400 [&>button:hover]:text-white">
+				<DialogHeader>
+					<DialogTitle className="text-xl font-semibold text-slate-200 flex items-center gap-2">
+						<Scissors className="w-5 h-5 text-[#ef4444]" /> {t("tutorial.title")}
+					</DialogTitle>
+					<DialogDescription className="text-slate-400">
+						{t("tutorial.understanding")}
+					</DialogDescription>
+				</DialogHeader>
+				<div className="mt-4 space-y-8">
+					{/* Explanation */}
+					<div className="bg-white/5 rounded-lg p-4 border border-white/5">
+						<p className="text-slate-300 leading-relaxed">
+							{t("tutorial.descriptionP1")}
+							<span className="text-[#ef4444] font-bold"> {t("tutorial.descriptionRemove")}</span>.{" "}
+							{t("tutorial.descriptionP3")}
+						</p>
+					</div>
+					{/* Visual Illustration */}
+					<div className="space-y-2">
+						<h3 className="text-sm font-medium text-slate-400 uppercase tracking-wider">
+							{t("tutorial.visualExample")}
+						</h3>
+						<div className="relative h-24 bg-[#000] rounded-lg border border-white/10 flex items-center px-4 overflow-hidden select-none">
+							{/* Background track (Kept parts) */}
+							<div className="absolute inset-x-4 h-2 bg-slate-600 rounded-full overflow-hidden">
+								{/* Solid line representing video */}
+							</div>
+							{/* Removed Segment 1 */}
+							<div
+								className="absolute left-[20%] h-8 bg-[#ef4444]/20 border border-[#ef4444] rounded flex flex-col items-center justify-center z-10"
+								style={{ width: "20%" }}
+							>
+								<span className="text-[10px] font-bold text-[#ef4444] bg-black/50 px-1 rounded">
+									{t("tutorial.removed")}
+								</span>
+							</div>
+							{/* Removed Segment 2 */}
+							<div
+								className="absolute left-[65%] h-8 bg-[#ef4444]/20 border border-[#ef4444] rounded flex flex-col items-center justify-center z-10"
+								style={{ width: "15%" }}
+							>
+								<span className="text-[10px] font-bold text-[#ef4444] bg-black/50 px-1 rounded">
+									{t("tutorial.removed")}
+								</span>
+							</div>
+							{/* Labels for kept parts */}
+							<div className="absolute left-[5%] text-[10px] text-slate-400 font-medium">
+								{t("tutorial.kept")}
+							</div>
+							<div className="absolute left-[50%] text-[10px] text-slate-400 font-medium">
+								{t("tutorial.kept")}
+							</div>
+							<div className="absolute left-[90%] text-[10px] text-slate-400 font-medium">
+								{t("tutorial.kept")}
+							</div>
+						</div>
+						<div className="flex justify-center mt-2">
+							<ArrowRight className="w-4 h-4 text-slate-600 rotate-90" />
+						</div>
+						{/* Result */}
+						<div className="relative h-12 bg-[#000] rounded-lg border border-white/10 flex items-center justify-center gap-1 px-4 select-none">
+							<div
+								className="h-8 bg-slate-700 rounded flex items-center justify-center opacity-80"
+								style={{ width: "30%" }}
+							>
+								<span className="text-[10px] text-white font-medium">
+									{t("tutorial.part", undefined, { number: "1" })}
+								</span>
+							</div>
+							<div
+								className="h-8 bg-slate-700 rounded flex items-center justify-center opacity-80"
+								style={{ width: "30%" }}
+							>
+								<span className="text-[10px] text-white font-medium">
+									{t("tutorial.part", undefined, { number: "2" })}
+								</span>
+							</div>
+							<div
+								className="h-8 bg-slate-700 rounded flex items-center justify-center opacity-80"
+								style={{ width: "30%" }}
+							>
+								<span className="text-[10px] text-white font-medium">
+									{t("tutorial.part", undefined, { number: "3" })}
+								</span>
+							</div>
+							<span className="absolute right-4 text-xs text-slate-400">
+								{t("tutorial.finalVideo")}
+							</span>
+						</div>
+					</div>
+					{/* Steps */}
+					<div className="grid grid-cols-2 gap-4">
+						<div className="p-3 rounded bg-white/5 border border-white/5">
+							<div className="text-[#ef4444] font-bold mb-1">{t("tutorial.addTrimStep")}</div>
+							<p className="text-xs text-slate-400">{t("tutorial.addTrimDesc")}</p>
+						</div>
+						<div className="p-3 rounded bg-white/5 border border-white/5">
+							<div className="text-[#ef4444] font-bold mb-1">{t("tutorial.adjustStep")}</div>
+							<p className="text-xs text-slate-400">{t("tutorial.adjustDesc")}</p>
+						</div>
+					</div>
+				</div>
+			</DialogContent>
+		</Dialog>
+	);
 }
-
diff --git a/src/components/video-editor/VideoEditor.tsx b/src/components/video-editor/VideoEditor.tsx
index aee7ae37..52b1a291 100644
--- a/src/components/video-editor/VideoEditor.tsx
+++ b/src/components/video-editor/VideoEditor.tsx
@@ -1,80 +1,93 @@
-
-
-import { useCallback, useEffect, useMemo, useRef, useState } from "react";
-import { Toaster } from "@/components/ui/sonner";
-import { toast } from "sonner";
-import { Panel, PanelGroup, PanelResizeHandle } from "react-resizable-panels";
+import type { Span } from "dnd-timeline";
 import { FolderOpen, Languages } from "lucide-react";
-import { useI18n } from "@/contexts/I18nContext";
+import { useCallback, useEffect, useMemo, useRef, useState } from "react";
+import { Panel, PanelGroup, PanelResizeHandle } from "react-resizable-panels";
+import { toast } from "sonner";
+import { Toaster } from "@/components/ui/sonner";
+import { useI18n, useScopedT } from "@/contexts/I18nContext";
 import { SUPPORTED_LOCALES } from "@/i18n/config";
 import type { AppLocale } from "@/i18n/config";
-
-import VideoPlayback, { VideoPlaybackRef } from "./VideoPlayback";
-import PlaybackControls from "./PlaybackControls";
-import TimelineEditor from "./timeline/TimelineEditor";
-import { SettingsPanel } from "./SettingsPanel";
-import { ExportDialog } from "./ExportDialog";
-import { DEFAULT_WALLPAPER_RELATIVE_PATH, WALLPAPER_PATHS } from "@/lib/wallpapers";
-import {
-  createProjectData,
-  deriveNextId,
-  fromFileUrl,
-  normalizeProjectEditor,
-  toFileUrl,
-  validateProjectData,
-} from "./projectPersistence";
-
-import type { Span } from "dnd-timeline";
-import {
-  DEFAULT_CURSOR_CLICK_BOUNCE,
-  DEFAULT_CURSOR_MOTION_BLUR,
-  DEFAULT_CURSOR_SIZE,
-  DEFAULT_CURSOR_SMOOTHING,
-  DEFAULT_ZOOM_DEPTH,
-  DEFAULT_ZOOM_MOTION_BLUR,
-  clampFocusToDepth,
-  DEFAULT_CROP_REGION,
-  DEFAULT_ANNOTATION_POSITION,
-  DEFAULT_ANNOTATION_SIZE,
-  DEFAULT_ANNOTATION_STYLE,
-  DEFAULT_FIGURE_DATA,
-  DEFAULT_PLAYBACK_SPEED,
-  type ZoomDepth,
-  type ZoomFocus,
-  type ZoomRegion,
-  type CursorTelemetryPoint,
-  type TrimRegion,
-  type AnnotationRegion,
-  type CropRegion,
-  type FigureData,
-  type SpeedRegion,
-  type PlaybackSpeed,
-} from "./types";
-import { VideoExporter, GifExporter, type ExportProgress, type ExportQuality, type ExportSettings, type ExportFormat, type GifFrameRate, type GifSizePreset, GIF_SIZE_PRESETS, calculateOutputDimensions } from "@/lib/exporter";
-import { type AspectRatio, getAspectRatioValue } from "@/utils/aspectRatioUtils";
-import { getAssetPath } from "@/lib/assetPath";
 import { useShortcuts } from "@/contexts/ShortcutsContext";
+import { getAssetPath } from "@/lib/assetPath";
+import {
+	calculateOutputDimensions,
+	type ExportFormat,
+	type ExportProgress,
+	type ExportQuality,
+	type ExportSettings,
+	GIF_SIZE_PRESETS,
+	GifExporter,
+	type GifFrameRate,
+	type GifSizePreset,
+	VideoExporter,
+} from "@/lib/exporter";
 import { matchesShortcut } from "@/lib/shortcuts";
-import { detectInteractionCandidates, normalizeCursorTelemetry } from "./timeline/zoomSuggestionUtils";
-import { buildLoopedCursorTelemetry, getDisplayedTimelineWindowMs } from "./videoPlayback/cursorLoopTelemetry";
+import { DEFAULT_WALLPAPER_RELATIVE_PATH, WALLPAPER_PATHS } from "@/lib/wallpapers";
+import { type AspectRatio, getAspectRatioValue } from "@/utils/aspectRatioUtils";
+import { ExportDialog } from "./ExportDialog";
+import PlaybackControls from "./PlaybackControls";
+import {
+	createProjectData,
+	deriveNextId,
+	fromFileUrl,
+	normalizeProjectEditor,
+	toFileUrl,
+	validateProjectData,
+} from "./projectPersistence";
+import { SettingsPanel } from "./SettingsPanel";
+import TimelineEditor from "./timeline/TimelineEditor";
+import {
+	detectInteractionCandidates,
+	normalizeCursorTelemetry,
+} from "./timeline/zoomSuggestionUtils";
+import {
+	type AnnotationRegion,
+	type CropRegion,
+	type CursorTelemetryPoint,
+	clampFocusToDepth,
+	DEFAULT_ANNOTATION_POSITION,
+	DEFAULT_ANNOTATION_SIZE,
+	DEFAULT_ANNOTATION_STYLE,
+	DEFAULT_CROP_REGION,
+	DEFAULT_CURSOR_CLICK_BOUNCE,
+	DEFAULT_CURSOR_MOTION_BLUR,
+	DEFAULT_CURSOR_SIZE,
+	DEFAULT_CURSOR_SMOOTHING,
+	DEFAULT_FIGURE_DATA,
+	DEFAULT_PLAYBACK_SPEED,
+	DEFAULT_ZOOM_DEPTH,
+	DEFAULT_ZOOM_MOTION_BLUR,
+	type FigureData,
+	type PlaybackSpeed,
+	type SpeedRegion,
+	type TrimRegion,
+	type ZoomDepth,
+	type ZoomFocus,
+	type ZoomRegion,
+} from "./types";
+import VideoPlayback, { VideoPlaybackRef } from "./VideoPlayback";
+import {
+	buildLoopedCursorTelemetry,
+	getDisplayedTimelineWindowMs,
+} from "./videoPlayback/cursorLoopTelemetry";
 import { findDominantRegion } from "./videoPlayback/zoomRegionUtils";
 
 const LOOP_CURSOR_END_WINDOW_MS = 670;
 
 type EditorHistorySnapshot = {
-  zoomRegions: ZoomRegion[];
-  trimRegions: TrimRegion[];
-  speedRegions: SpeedRegion[];
-  annotationRegions: AnnotationRegion[];
-  selectedZoomId: string | null;
-  selectedTrimId: string | null;
-  selectedSpeedId: string | null;
-  selectedAnnotationId: string | null;
+	zoomRegions: ZoomRegion[];
+	trimRegions: TrimRegion[];
+	speedRegions: SpeedRegion[];
+	annotationRegions: AnnotationRegion[];
+	selectedZoomId: string | null;
+	selectedTrimId: string | null;
+	selectedSpeedId: string | null;
+	selectedAnnotationId: string | null;
 };
 
 type PendingExportSave = {
-  fileName: string;
-  arrayBuffer: ArrayBuffer;
+	fileName: string;
+	arrayBuffer: ArrayBuffer;
 };
 
 function LanguageSwitcher() {
@@ -98,6 +111,7 @@ function LanguageSwitcher() {
 
 export default function VideoEditor() {
   const { t } = useI18n();
+  const tEditor = useScopedT("editor");
   const [videoPath, setVideoPath] = useState<string | null>(null);
   const [videoSourcePath, setVideoSourcePath] = useState<string | null>(null);
   const [currentProjectPath, setCurrentProjectPath] = useState<string | null>(null);
@@ -1835,4 +1849,3 @@ export default function VideoEditor() {
     </div>
   );
 }
-
diff --git a/src/components/video-editor/timeline/Item.tsx b/src/components/video-editor/timeline/Item.tsx
index 1ca84f46..2870fc92 100644
--- a/src/components/video-editor/timeline/Item.tsx
+++ b/src/components/video-editor/timeline/Item.tsx
@@ -1,162 +1,170 @@
-import { useMemo } from "react";
-import { useItem } from "dnd-timeline";
 import type { Span } from "dnd-timeline";
+import { useItem } from "dnd-timeline";
+import { Gauge, MessageSquare, Scissors, ZoomIn } from "lucide-react";
+import { useMemo } from "react";
+import { useScopedT } from "@/contexts/I18nContext";
 import { cn } from "@/lib/utils";
-import { ZoomIn, Scissors, MessageSquare, Gauge } from "lucide-react";
 import glassStyles from "./ItemGlass.module.css";
 
 interface ItemProps {
-  id: string;
-  span: Span;
-  rowId: string;
-  children: React.ReactNode;
-  isSelected?: boolean;
-  onSelect?: () => void;
-  zoomDepth?: number;
-  speedValue?: number;
-  variant?: 'zoom' | 'trim' | 'annotation' | 'speed';
+	id: string;
+	span: Span;
+	rowId: string;
+	children: React.ReactNode;
+	isSelected?: boolean;
+	onSelect?: () => void;
+	zoomDepth?: number;
+	speedValue?: number;
+	variant?: "zoom" | "trim" | "annotation" | "speed";
 }
 
 // Map zoom depth to multiplier labels
 const ZOOM_LABELS: Record<number, string> = {
-  1: "1.25×",
-  2: "1.5×",
-  3: "1.8×",
-  4: "2.2×",
-  5: "3.5×",
-  6: "5×",
+	1: "1.25×",
+	2: "1.5×",
+	3: "1.8×",
+	4: "2.2×",
+	5: "3.5×",
+	6: "5×",
 };
 
 function formatMs(ms: number): string {
-  const totalSeconds = ms / 1000;
-  const minutes = Math.floor(totalSeconds / 60);
-  const seconds = totalSeconds % 60;
-  if (minutes > 0) {
-    return `${minutes}:${seconds.toFixed(1).padStart(4, '0')}`;
-  }
-  return `${seconds.toFixed(1)}s`;
+	const totalSeconds = ms / 1000;
+	const minutes = Math.floor(totalSeconds / 60);
+	const seconds = totalSeconds % 60;
+	if (minutes > 0) {
+		return `${minutes}:${seconds.toFixed(1).padStart(4, "0")}`;
+	}
+	return `${seconds.toFixed(1)}s`;
 }
 
 export default function Item({
-  id,
-  span,
-  rowId,
-  isSelected = false,
-  onSelect,
-  zoomDepth = 1,
-  speedValue,
-  variant = 'zoom',
-  children
+	id,
+	span,
+	rowId,
+	isSelected = false,
+	onSelect,
+	zoomDepth = 1,
+	speedValue,
+	variant = "zoom",
+	children,
 }: ItemProps) {
-  const { setNodeRef, attributes, listeners, itemStyle, itemContentStyle } = useItem({
-    id,
-    span,
-    data: { rowId },
-  });
+	const t = useScopedT("timeline");
+	const { setNodeRef, attributes, listeners, itemStyle, itemContentStyle } = useItem({
+		id,
+		span,
+		data: { rowId },
+	});
 
-  const isZoom = variant === 'zoom';
-  const isTrim = variant === 'trim';
-  const isSpeed = variant === 'speed';
+	const isZoom = variant === "zoom";
+	const isTrim = variant === "trim";
+	const isSpeed = variant === "speed";
 
-  const glassClass = isZoom
-    ? glassStyles.glassGreen
-    : isTrim
-    ? glassStyles.glassRed
-    : isSpeed
-    ? glassStyles.glassAmber
-    : glassStyles.glassYellow;
+	const glassClass = isZoom
+		? glassStyles.glassGreen
+		: isTrim
+			? glassStyles.glassRed
+			: isSpeed
+				? glassStyles.glassAmber
+				: glassStyles.glassYellow;
 
-  const endCapColor = isZoom
-    ? '#2563EB'
-    : isTrim
-    ? '#ef4444'
-    : isSpeed
-    ? '#d97706'
-    : '#B4A046';
+	const endCapColor = isZoom ? "#2563EB" : isTrim ? "#ef4444" : isSpeed ? "#d97706" : "#B4A046";
 
-  const timeLabel = useMemo(
-    () => `${formatMs(span.start)} – ${formatMs(span.end)}`,
-    [span.start, span.end],
-  );
+	const timeLabel = useMemo(
+		() => `${formatMs(span.start)} – ${formatMs(span.end)}`,
+		[span.start, span.end],
+	);
 
-  const MIN_ITEM_PX = 6;
-  const safeItemStyle = { ...itemStyle, minWidth: MIN_ITEM_PX };
+	const MIN_ITEM_PX = 6;
+	const safeItemStyle = { ...itemStyle, minWidth: MIN_ITEM_PX };
 
-  return (
-    <div
-      ref={setNodeRef}
-      style={safeItemStyle}
-      {...listeners}
-      {...attributes}
-      onPointerDownCapture={() => onSelect?.()}
-      className="group"
-    >
-      <div style={{ ...itemContentStyle, minWidth: 24 }}>
-        <div
-          className={cn(
-            glassClass,
-            "w-full h-full overflow-hidden flex items-center justify-center gap-1.5 cursor-grab active:cursor-grabbing relative",
-            isSelected && glassStyles.selected
-          )}
-          style={{ height: 40, color: '#fff', minWidth: 24 }}
-          onClick={(event) => {
-            event.stopPropagation();
-            onSelect?.();
-          }}
-        >
-          <div
-            className={cn(glassStyles.zoomEndCap, glassStyles.left)}
-            style={{ cursor: 'col-resize', pointerEvents: 'auto', width: 8, opacity: 0.9, background: endCapColor }}
-            title="Resize left"
-          />
-          <div
-            className={cn(glassStyles.zoomEndCap, glassStyles.right)}
-            style={{ cursor: 'col-resize', pointerEvents: 'auto', width: 8, opacity: 0.9, background: endCapColor }}
-            title="Resize right"
-          />
-          {/* Content */}
-          <div className="relative z-10 flex flex-col items-center justify-center text-white/90 opacity-80 group-hover:opacity-100 transition-opacity select-none overflow-hidden">
-            <div className="flex items-center gap-1.5">
-              {isZoom ? (
-                <>
-                  <ZoomIn className="w-3.5 h-3.5 shrink-0" />
-                  <span className="text-[11px] font-semibold tracking-tight whitespace-nowrap">
-                    {ZOOM_LABELS[zoomDepth] || `${zoomDepth}×`}
-                  </span>
-                </>
-              ) : isTrim ? (
-                <>
-                  <Scissors className="w-3.5 h-3.5 shrink-0" />
-                  <span className="text-[11px] font-semibold tracking-tight whitespace-nowrap">
-                    Trim
-                  </span>
-                </>
-              ) : isSpeed ? (
-                <>
-                  <Gauge className="w-3.5 h-3.5 shrink-0" />
-                  <span className="text-[11px] font-semibold tracking-tight whitespace-nowrap">
-                    {speedValue !== undefined ? `${speedValue}×` : 'Speed'}
-                  </span>
-                </>
-              ) : (
-                <>
-                  <MessageSquare className="w-3.5 h-3.5 shrink-0" />
-                  <span className="text-[11px] font-semibold tracking-tight whitespace-nowrap">
-                    {children}
-                  </span>
-                </>
-              )}
-            </div>
-            <span
-              className={`text-[9px] tabular-nums tracking-tight whitespace-nowrap transition-opacity ${
-                isSelected ? 'opacity-60' : 'opacity-0 group-hover:opacity-40'
-              }`}
-            >
-              {timeLabel}
-            </span>
-          </div>
-        </div>
-      </div>
-    </div>
-  );
+	return (
+		<div
+			ref={setNodeRef}
+			style={safeItemStyle}
+			{...listeners}
+			{...attributes}
+			onPointerDownCapture={() => onSelect?.()}
+			className="group"
+		>
+			<div style={{ ...itemContentStyle, minWidth: 24 }}>
+				<div
+					className={cn(
+						glassClass,
+						"w-full h-full overflow-hidden flex items-center justify-center gap-1.5 cursor-grab active:cursor-grabbing relative",
+						isSelected && glassStyles.selected,
+					)}
+					style={{ height: 40, color: "#fff", minWidth: 24 }}
+					onClick={(event) => {
+						event.stopPropagation();
+						onSelect?.();
+					}}
+				>
+					<div
+						className={cn(glassStyles.zoomEndCap, glassStyles.left)}
+						style={{
+							cursor: "col-resize",
+							pointerEvents: "auto",
+							width: 8,
+							opacity: 0.9,
+							background: endCapColor,
+						}}
+						title={t("resizeLeft")}
+					/>
+					<div
+						className={cn(glassStyles.zoomEndCap, glassStyles.right)}
+						style={{
+							cursor: "col-resize",
+							pointerEvents: "auto",
+							width: 8,
+							opacity: 0.9,
+							background: endCapColor,
+						}}
+						title={t("resizeRight")}
+					/>
+					{/* Content */}
+					<div className="relative z-10 flex flex-col items-center justify-center text-white/90 opacity-80 group-hover:opacity-100 transition-opacity select-none overflow-hidden">
+						<div className="flex items-center gap-1.5">
+							{isZoom ? (
+								<>
+									<ZoomIn className="w-3.5 h-3.5 shrink-0" />
+									<span className="text-[11px] font-semibold tracking-tight whitespace-nowrap">
+										{ZOOM_LABELS[zoomDepth] || `${zoomDepth}×`}
+									</span>
+								</>
+							) : isTrim ? (
+								<>
+									<Scissors className="w-3.5 h-3.5 shrink-0" />
+									<span className="text-[11px] font-semibold tracking-tight whitespace-nowrap">
+										{t("trim.label", undefined, { index: "" }).trim()}
+									</span>
+								</>
+							) : isSpeed ? (
+								<>
+									<Gauge className="w-3.5 h-3.5 shrink-0" />
+									<span className="text-[11px] font-semibold tracking-tight whitespace-nowrap">
+										{speedValue !== undefined ? `${speedValue}×` : t("speed.label")}
+									</span>
+								</>
+							) : (
+								<>
+									<MessageSquare className="w-3.5 h-3.5 shrink-0" />
+									<span className="text-[11px] font-semibold tracking-tight whitespace-nowrap">
+										{children}
+									</span>
+								</>
+							)}
+						</div>
+						<span
+							className={`text-[9px] tabular-nums tracking-tight whitespace-nowrap transition-opacity ${
+								isSelected ? "opacity-60" : "opacity-0 group-hover:opacity-40"
+							}`}
+						>
+							{timeLabel}
+						</span>
+					</div>
+				</div>
+			</div>
+		</div>
+	);
 }
diff --git a/src/components/video-editor/timeline/TimelineEditor.tsx b/src/components/video-editor/timeline/TimelineEditor.tsx
index c381bca8..db1b8dab 100644
--- a/src/components/video-editor/timeline/TimelineEditor.tsx
+++ b/src/components/video-editor/timeline/TimelineEditor.tsx
@@ -1,27 +1,44 @@
-import { useCallback, useEffect, useMemo, useRef, useState, type KeyboardEvent as ReactKeyboardEvent, type WheelEvent } from "react";
-import { useTimelineContext } from "dnd-timeline";
-import { Button } from "@/components/ui/button";
-import { Plus, Scissors, ZoomIn, MessageSquare, ChevronDown, Check, Gauge, WandSparkles } from "lucide-react";
-import { toast } from "sonner";
-import { cn } from "@/lib/utils";
-import TimelineWrapper from "./TimelineWrapper";
-import Row from "./Row";
-import Item from "./Item";
-import KeyframeMarkers from "./KeyframeMarkers";
 import type { Range, Span } from "dnd-timeline";
-import type { ZoomRegion, TrimRegion, AnnotationRegion, SpeedRegion, CursorTelemetryPoint, ZoomFocus } from "../types";
-import { v4 as uuidv4 } from 'uuid';
+import { useTimelineContext } from "dnd-timeline";
 import {
-  DropdownMenu,
-  DropdownMenuContent,
-  DropdownMenuItem,
-  DropdownMenuTrigger,
+	Check,
+	ChevronDown,
+	Gauge,
+	MessageSquare,
+	Plus,
+	Scissors,
+	WandSparkles,
+	ZoomIn,
+} from "lucide-react";
+import { useCallback, useEffect, useMemo, useRef, useState, type KeyboardEvent as ReactKeyboardEvent, type WheelEvent } from "react";
+import { toast } from "sonner";
+import { v4 as uuidv4 } from "uuid";
+import { Button } from "@/components/ui/button";
+import {
+	DropdownMenu,
+	DropdownMenuContent,
+	DropdownMenuItem,
+	DropdownMenuTrigger,
 } from "@/components/ui/dropdown-menu";
-import { type AspectRatio, getAspectRatioLabel, ASPECT_RATIOS, isCustomAspectRatio } from "@/utils/aspectRatioUtils";
-import { formatShortcut } from "@/utils/platformUtils";
-import { TutorialHelp } from "../TutorialHelp";
+import { useScopedT } from "@/contexts/I18nContext";
 import { useShortcuts } from "@/contexts/ShortcutsContext";
 import { matchesShortcut } from "@/lib/shortcuts";
+import { cn } from "@/lib/utils";
+import { ASPECT_RATIOS, type AspectRatio, getAspectRatioLabel, isCustomAspectRatio } from "@/utils/aspectRatioUtils";
+import { formatShortcut } from "@/utils/platformUtils";
+import { TutorialHelp } from "../TutorialHelp";
+import type {
+	AnnotationRegion,
+	CursorTelemetryPoint,
+	SpeedRegion,
+	TrimRegion,
+	ZoomFocus,
+	ZoomRegion,
+} from "../types";
+import Item from "./Item";
+import KeyframeMarkers from "./KeyframeMarkers";
+import Row from "./Row";
+import TimelineWrapper from "./TimelineWrapper";
 import { detectInteractionCandidates, normalizeCursorTelemetry } from "./zoomSuggestionUtils";
 
 const ZOOM_ROW_ID = "row-zoom";
@@ -33,572 +50,603 @@ const TARGET_MARKER_COUNT = 12;
 const SUGGESTION_SPACING_MS = 1800;
 
 interface TimelineEditorProps {
-  videoDuration: number;
-  currentTime: number;
-  onSeek?: (time: number) => void;
-  cursorTelemetry?: CursorTelemetryPoint[];
-  zoomRegions: ZoomRegion[];
-  onZoomAdded: (span: Span) => void;
-  onZoomSuggested?: (span: Span, focus: ZoomFocus) => void;
-  onZoomSpanChange: (id: string, span: Span) => void;
-  onZoomDelete: (id: string) => void;
-  selectedZoomId: string | null;
-  onSelectZoom: (id: string | null) => void;
-  trimRegions?: TrimRegion[];
-  onTrimAdded?: (span: Span) => void;
-  onTrimSpanChange?: (id: string, span: Span) => void;
-  onTrimDelete?: (id: string) => void;
-  selectedTrimId?: string | null;
-  onSelectTrim?: (id: string | null) => void;
-  annotationRegions?: AnnotationRegion[];
-  onAnnotationAdded?: (span: Span) => void;
-  onAnnotationSpanChange?: (id: string, span: Span) => void;
-  onAnnotationDelete?: (id: string) => void;
-  selectedAnnotationId?: string | null;
-  onSelectAnnotation?: (id: string | null) => void;
-  speedRegions?: SpeedRegion[];
-  onSpeedAdded?: (span: Span) => void;
-  onSpeedSpanChange?: (id: string, span: Span) => void;
-  onSpeedDelete?: (id: string) => void;
-  selectedSpeedId?: string | null;
-  onSelectSpeed?: (id: string | null) => void;
-  aspectRatio: AspectRatio;
-  onAspectRatioChange: (aspectRatio: AspectRatio) => void;
+	videoDuration: number;
+	currentTime: number;
+	onSeek?: (time: number) => void;
+	cursorTelemetry?: CursorTelemetryPoint[];
+	zoomRegions: ZoomRegion[];
+	onZoomAdded: (span: Span) => void;
+	onZoomSuggested?: (span: Span, focus: ZoomFocus) => void;
+	onZoomSpanChange: (id: string, span: Span) => void;
+	onZoomDelete: (id: string) => void;
+	selectedZoomId: string | null;
+	onSelectZoom: (id: string | null) => void;
+	trimRegions?: TrimRegion[];
+	onTrimAdded?: (span: Span) => void;
+	onTrimSpanChange?: (id: string, span: Span) => void;
+	onTrimDelete?: (id: string) => void;
+	selectedTrimId?: string | null;
+	onSelectTrim?: (id: string | null) => void;
+	annotationRegions?: AnnotationRegion[];
+	onAnnotationAdded?: (span: Span) => void;
+	onAnnotationSpanChange?: (id: string, span: Span) => void;
+	onAnnotationDelete?: (id: string) => void;
+	selectedAnnotationId?: string | null;
+	onSelectAnnotation?: (id: string | null) => void;
+	speedRegions?: SpeedRegion[];
+	onSpeedAdded?: (span: Span) => void;
+	onSpeedSpanChange?: (id: string, span: Span) => void;
+	onSpeedDelete?: (id: string) => void;
+	selectedSpeedId?: string | null;
+	onSelectSpeed?: (id: string | null) => void;
+	aspectRatio: AspectRatio;
+	onAspectRatioChange: (aspectRatio: AspectRatio) => void;
 }
 
 interface TimelineScaleConfig {
-  minItemDurationMs: number;
-  defaultItemDurationMs: number;
-  minVisibleRangeMs: number;
+	minItemDurationMs: number;
+	defaultItemDurationMs: number;
+	minVisibleRangeMs: number;
 }
 
 interface TimelineRenderItem {
-  id: string;
-  rowId: string;
-  span: Span;
-  label: string;
-  zoomDepth?: number;
-  speedValue?: number;
-  variant: 'zoom' | 'trim' | 'annotation' | 'speed';
+	id: string;
+	rowId: string;
+	span: Span;
+	label: string;
+	zoomDepth?: number;
+	speedValue?: number;
+	variant: "zoom" | "trim" | "annotation" | "speed";
 }
 
 const SCALE_CANDIDATES = [
-  { intervalSeconds: 0.05, gridSeconds: 0.01 },
-  { intervalSeconds: 0.1, gridSeconds: 0.02 },
-  { intervalSeconds: 0.25, gridSeconds: 0.05 },
-  { intervalSeconds: 0.5, gridSeconds: 0.1 },
-  { intervalSeconds: 1, gridSeconds: 0.25 },
-  { intervalSeconds: 2, gridSeconds: 0.5 },
-  { intervalSeconds: 5, gridSeconds: 1 },
-  { intervalSeconds: 10, gridSeconds: 2 },
-  { intervalSeconds: 15, gridSeconds: 3 },
-  { intervalSeconds: 30, gridSeconds: 5 },
-  { intervalSeconds: 60, gridSeconds: 10 },
-  { intervalSeconds: 120, gridSeconds: 20 },
-  { intervalSeconds: 300, gridSeconds: 30 },
-  { intervalSeconds: 600, gridSeconds: 60 },
-  { intervalSeconds: 900, gridSeconds: 120 },
-  { intervalSeconds: 1800, gridSeconds: 180 },
-  { intervalSeconds: 3600, gridSeconds: 300 },
+	{ intervalSeconds: 0.05, gridSeconds: 0.01 },
+	{ intervalSeconds: 0.1, gridSeconds: 0.02 },
+	{ intervalSeconds: 0.25, gridSeconds: 0.05 },
+	{ intervalSeconds: 0.5, gridSeconds: 0.1 },
+	{ intervalSeconds: 1, gridSeconds: 0.25 },
+	{ intervalSeconds: 2, gridSeconds: 0.5 },
+	{ intervalSeconds: 5, gridSeconds: 1 },
+	{ intervalSeconds: 10, gridSeconds: 2 },
+	{ intervalSeconds: 15, gridSeconds: 3 },
+	{ intervalSeconds: 30, gridSeconds: 5 },
+	{ intervalSeconds: 60, gridSeconds: 10 },
+	{ intervalSeconds: 120, gridSeconds: 20 },
+	{ intervalSeconds: 300, gridSeconds: 30 },
+	{ intervalSeconds: 600, gridSeconds: 60 },
+	{ intervalSeconds: 900, gridSeconds: 120 },
+	{ intervalSeconds: 1800, gridSeconds: 180 },
+	{ intervalSeconds: 3600, gridSeconds: 300 },
 ];
 
 function calculateAxisScale(visibleRangeMs: number): { intervalMs: number; gridMs: number } {
-  const visibleSeconds = visibleRangeMs / 1000;
-  const candidate =
-    SCALE_CANDIDATES.find((scaleCandidate) => {
-      if (visibleSeconds <= 0) {
-        return true;
-      }
-      return visibleSeconds / scaleCandidate.intervalSeconds <= TARGET_MARKER_COUNT;
-    }) ?? SCALE_CANDIDATES[SCALE_CANDIDATES.length - 1];
+	const visibleSeconds = visibleRangeMs / 1000;
+	const candidate =
+		SCALE_CANDIDATES.find((scaleCandidate) => {
+			if (visibleSeconds <= 0) {
+				return true;
+			}
+			return visibleSeconds / scaleCandidate.intervalSeconds <= TARGET_MARKER_COUNT;
+		}) ?? SCALE_CANDIDATES[SCALE_CANDIDATES.length - 1];
 
-  return {
-    intervalMs: Math.round(candidate.intervalSeconds * 1000),
-    gridMs: Math.round(candidate.gridSeconds * 1000),
-  };
+	return {
+		intervalMs: Math.round(candidate.intervalSeconds * 1000),
+		gridMs: Math.round(candidate.gridSeconds * 1000),
+	};
 }
 
 function calculateTimelineScale(durationSeconds: number): TimelineScaleConfig {
-  const totalMs = Math.max(0, Math.round(durationSeconds * 1000));
+	const totalMs = Math.max(0, Math.round(durationSeconds * 1000));
 
-  const minItemDurationMs = 100;
+	const minItemDurationMs = 100;
 
-  const defaultItemDurationMs = totalMs > 0
-    ? Math.max(minItemDurationMs, Math.min(Math.round(totalMs * 0.05), 30000))
-    : Math.max(minItemDurationMs, 1000);
+	const defaultItemDurationMs =
+		totalMs > 0
+			? Math.max(minItemDurationMs, Math.min(Math.round(totalMs * 0.05), 30000))
+			: Math.max(minItemDurationMs, 1000);
 
-  const minVisibleRangeMs = 300;
+	const minVisibleRangeMs = 300;
 
-  return {
-    minItemDurationMs,
-    defaultItemDurationMs,
-    minVisibleRangeMs,
-  };
+	return {
+		minItemDurationMs,
+		defaultItemDurationMs,
+		minVisibleRangeMs,
+	};
 }
 
 function createInitialRange(totalMs: number): Range {
-  if (totalMs > 0) {
-    return { start: 0, end: totalMs };
-  }
+	if (totalMs > 0) {
+		return { start: 0, end: totalMs };
+	}
 
-  return { start: 0, end: FALLBACK_RANGE_MS };
+	return { start: 0, end: FALLBACK_RANGE_MS };
 }
 
 function normalizeWheelDeltaToPixels(delta: number, deltaMode: number) {
-  if (deltaMode === 1) {
-    return delta * 16;
-  }
+	if (deltaMode === 1) {
+		return delta * 16;
+	}
 
-  if (deltaMode === 2) {
-    return delta * 240;
-  }
+	if (deltaMode === 2) {
+		return delta * 240;
+	}
 
-  return delta;
+	return delta;
 }
 
 function formatTimeLabel(milliseconds: number, intervalMs: number) {
-  const totalSeconds = milliseconds / 1000;
-  const hours = Math.floor(totalSeconds / 3600);
-  const minutes = Math.floor((totalSeconds % 3600) / 60);
-  const seconds = totalSeconds % 60;
+	const totalSeconds = milliseconds / 1000;
+	const hours = Math.floor(totalSeconds / 3600);
+	const minutes = Math.floor((totalSeconds % 3600) / 60);
+	const seconds = totalSeconds % 60;
 
-  const fractionalDigits = intervalMs < 250 ? 2 : intervalMs < 1000 ? 1 : 0;
+	const fractionalDigits = intervalMs < 250 ? 2 : intervalMs < 1000 ? 1 : 0;
 
-  if (hours > 0) {
-    const minutesString = minutes.toString().padStart(2, "0");
-    const secondsString = Math.floor(seconds)
-      .toString()
-      .padStart(2, "0");
-    return `${hours}:${minutesString}:${secondsString}`;
-  }
+	if (hours > 0) {
+		const minutesString = minutes.toString().padStart(2, "0");
+		const secondsString = Math.floor(seconds).toString().padStart(2, "0");
+		return `${hours}:${minutesString}:${secondsString}`;
+	}
 
-  if (fractionalDigits > 0) {
-    const secondsWithFraction = seconds.toFixed(fractionalDigits);
-    const [wholeSeconds, fraction] = secondsWithFraction.split(".");
-    return `${minutes}:${wholeSeconds.padStart(2, "0")}.${fraction}`;
-  }
+	if (fractionalDigits > 0) {
+		const secondsWithFraction = seconds.toFixed(fractionalDigits);
+		const [wholeSeconds, fraction] = secondsWithFraction.split(".");
+		return `${minutes}:${wholeSeconds.padStart(2, "0")}.${fraction}`;
+	}
 
-  return `${minutes}:${Math.floor(seconds).toString().padStart(2, "0")}`;
+	return `${minutes}:${Math.floor(seconds).toString().padStart(2, "0")}`;
 }
 
 function formatPlayheadTime(ms: number): string {
-  const s = ms / 1000;
-  const min = Math.floor(s / 60);
-  const sec = s % 60;
-  if (min > 0) return `${min}:${sec.toFixed(1).padStart(4, '0')}`;
-  return `${sec.toFixed(1)}s`;
+	const s = ms / 1000;
+	const min = Math.floor(s / 60);
+	const sec = s % 60;
+	if (min > 0) return `${min}:${sec.toFixed(1).padStart(4, "0")}`;
+	return `${sec.toFixed(1)}s`;
 }
 
 function PlaybackCursor({
-  currentTimeMs,
-  videoDurationMs,
-  onSeek,
-  timelineRef,
-  keyframes = [],
+	currentTimeMs,
+	videoDurationMs,
+	onSeek,
+	timelineRef,
+	keyframes = [],
 }: {
-  currentTimeMs: number;
-  videoDurationMs: number;
-  onSeek?: (time: number) => void;
-  timelineRef: React.RefObject<HTMLDivElement>;
-  keyframes?: { id: string; time: number }[];
+	currentTimeMs: number;
+	videoDurationMs: number;
+	onSeek?: (time: number) => void;
+	timelineRef: React.RefObject<HTMLDivElement>;
+	keyframes?: { id: string; time: number }[];
 }) {
-  const { sidebarWidth, direction, range, valueToPixels, pixelsToValue } = useTimelineContext();
-  const sideProperty = direction === "rtl" ? "right" : "left";
-  const [isDragging, setIsDragging] = useState(false);
+	const { sidebarWidth, direction, range, valueToPixels, pixelsToValue } = useTimelineContext();
+	const sideProperty = direction === "rtl" ? "right" : "left";
+	const [isDragging, setIsDragging] = useState(false);
 
-  useEffect(() => {
-    if (!isDragging) return;
+	useEffect(() => {
+		if (!isDragging) return;
 
-    const handleMouseMove = (e: MouseEvent) => {
-      if (!timelineRef.current || !onSeek) return;
+		const handleMouseMove = (e: MouseEvent) => {
+			if (!timelineRef.current || !onSeek) return;
 
-      const rect = timelineRef.current.getBoundingClientRect();
-      const clickX = e.clientX - rect.left - sidebarWidth;
+			const rect = timelineRef.current.getBoundingClientRect();
+			const clickX = e.clientX - rect.left - sidebarWidth;
 
-      // Allow dragging outside to 0 or max, but clamp the value
-      const relativeMs = pixelsToValue(clickX);
-      let absoluteMs = Math.max(0, Math.min(range.start + relativeMs, videoDurationMs));
+			// Allow dragging outside to 0 or max, but clamp the value
+			const relativeMs = pixelsToValue(clickX);
+			let absoluteMs = Math.max(0, Math.min(range.start + relativeMs, videoDurationMs));
 
-      // Snap to nearby keyframe if within threshold (150ms)
-      const snapThresholdMs = 150;
-      const nearbyKeyframe = keyframes.find(kf =>
-        Math.abs(kf.time - absoluteMs) <= snapThresholdMs &&
-        kf.time >= range.start &&
-        kf.time <= range.end
-      );
+			// Snap to nearby keyframe if within threshold (150ms)
+			const snapThresholdMs = 150;
+			const nearbyKeyframe = keyframes.find(
+				(kf) =>
+					Math.abs(kf.time - absoluteMs) <= snapThresholdMs &&
+					kf.time >= range.start &&
+					kf.time <= range.end,
+			);
 
-      if (nearbyKeyframe) {
-        absoluteMs = nearbyKeyframe.time;
-      }
+			if (nearbyKeyframe) {
+				absoluteMs = nearbyKeyframe.time;
+			}
 
-      onSeek(absoluteMs / 1000);
-    };
+			onSeek(absoluteMs / 1000);
+		};
 
-    const handleMouseUp = () => {
-      setIsDragging(false);
-      document.body.style.cursor = '';
-    };
+		const handleMouseUp = () => {
+			setIsDragging(false);
+			document.body.style.cursor = "";
+		};
 
-    window.addEventListener('mousemove', handleMouseMove);
-    window.addEventListener('mouseup', handleMouseUp);
-    document.body.style.cursor = 'ew-resize';
+		window.addEventListener("mousemove", handleMouseMove);
+		window.addEventListener("mouseup", handleMouseUp);
+		document.body.style.cursor = "ew-resize";
 
-    return () => {
-      window.removeEventListener('mousemove', handleMouseMove);
-      window.removeEventListener('mouseup', handleMouseUp);
-      document.body.style.cursor = '';
-    };
-  }, [isDragging, onSeek, timelineRef, sidebarWidth, range.start, range.end, videoDurationMs, pixelsToValue, keyframes]);
+		return () => {
+			window.removeEventListener("mousemove", handleMouseMove);
+			window.removeEventListener("mouseup", handleMouseUp);
+			document.body.style.cursor = "";
+		};
+	}, [
+		isDragging,
+		onSeek,
+		timelineRef,
+		sidebarWidth,
+		range.start,
+		range.end,
+		videoDurationMs,
+		pixelsToValue,
+		keyframes,
+	]);
 
-  if (videoDurationMs <= 0 || currentTimeMs < 0) {
-    return null;
-  }
+	if (videoDurationMs <= 0 || currentTimeMs < 0) {
+		return null;
+	}
 
-  const clampedTime = Math.min(currentTimeMs, videoDurationMs);
+	const clampedTime = Math.min(currentTimeMs, videoDurationMs);
 
-  if (clampedTime < range.start || clampedTime > range.end) {
-    return null;
-  }
+	if (clampedTime < range.start || clampedTime > range.end) {
+		return null;
+	}
 
-  const offset = valueToPixels(clampedTime - range.start);
+	const offset = valueToPixels(clampedTime - range.start);
 
-  return (
-    <div
-      className="absolute top-0 bottom-0 z-50 group/cursor"
-      style={{
-        [sideProperty === "right" ? "marginRight" : "marginLeft"]: `${sidebarWidth - 1}px`,
-        pointerEvents: 'none', // Allow clicks to pass through to timeline, but we'll enable pointer events on the handle
-      }}
-    >
-      <div
-        className="absolute top-0 bottom-0 w-[2px] bg-[#2563EB] shadow-[0_0_10px_rgba(37,99,235,0.5)] cursor-ew-resize pointer-events-auto hover:shadow-[0_0_15px_rgba(37,99,235,0.7)] transition-shadow"
-        style={{
-          [sideProperty]: `${offset}px`,
-        }}
-        onMouseDown={(e) => {
-          e.stopPropagation(); // Prevent timeline click
-          setIsDragging(true);
-        }}
-      >
-        <div
-          className="absolute -top-1 left-1/2 -translate-x-1/2 hover:scale-125 transition-transform"
-          style={{ width: '16px', height: '16px' }}
-        >
-          <div className="w-3 h-3 mx-auto mt-[2px] bg-[#2563EB] rotate-45 rounded-sm shadow-lg border border-white/20" />
-        </div>
-        {isDragging && (
-          <div className="absolute -top-6 left-1/2 -translate-x-1/2 px-1.5 py-0.5 rounded bg-black/80 text-[10px] text-white/90 font-medium tabular-nums whitespace-nowrap border border-white/10 shadow-lg pointer-events-none">
-            {formatPlayheadTime(clampedTime)}
-          </div>
-        )}
-      </div>
-    </div>
-  );
+	return (
+		<div
+			className="absolute top-0 bottom-0 z-50 group/cursor"
+			style={{
+				[sideProperty === "right" ? "marginRight" : "marginLeft"]: `${sidebarWidth - 1}px`,
+				pointerEvents: "none", // Allow clicks to pass through to timeline, but we'll enable pointer events on the handle
+			}}
+		>
+			<div
+				className="absolute top-0 bottom-0 w-[2px] bg-[#2563EB] shadow-[0_0_10px_rgba(37,99,235,0.5)] cursor-ew-resize pointer-events-auto hover:shadow-[0_0_15px_rgba(37,99,235,0.7)] transition-shadow"
+				style={{
+					[sideProperty]: `${offset}px`,
+				}}
+				onMouseDown={(e) => {
+					e.stopPropagation(); // Prevent timeline click
+					setIsDragging(true);
+				}}
+			>
+				<div
+					className="absolute -top-1 left-1/2 -translate-x-1/2 hover:scale-125 transition-transform"
+					style={{ width: "16px", height: "16px" }}
+				>
+					<div className="w-3 h-3 mx-auto mt-[2px] bg-[#2563EB] rotate-45 rounded-sm shadow-lg border border-white/20" />
+				</div>
+				{isDragging && (
+					<div className="absolute -top-6 left-1/2 -translate-x-1/2 px-1.5 py-0.5 rounded bg-black/80 text-[10px] text-white/90 font-medium tabular-nums whitespace-nowrap border border-white/10 shadow-lg pointer-events-none">
+						{formatPlayheadTime(clampedTime)}
+					</div>
+				)}
+			</div>
+		</div>
+	);
 }
 
 function TimelineAxis({
-  videoDurationMs,
-  currentTimeMs,
+	videoDurationMs,
+	currentTimeMs,
 }: {
-  videoDurationMs: number;
-  currentTimeMs: number;
+	videoDurationMs: number;
+	currentTimeMs: number;
 }) {
-  const { sidebarWidth, direction, range, valueToPixels } = useTimelineContext();
-  const sideProperty = direction === "rtl" ? "right" : "left";
+	const { sidebarWidth, direction, range, valueToPixels } = useTimelineContext();
+	const sideProperty = direction === "rtl" ? "right" : "left";
 
-  const { intervalMs } = useMemo(
-    () => calculateAxisScale(range.end - range.start),
-    [range.end, range.start],
-  );
+	const { intervalMs } = useMemo(
+		() => calculateAxisScale(range.end - range.start),
+		[range.end, range.start],
+	);
 
-  const markers = useMemo(() => {
-    if (intervalMs <= 0) {
-      return { markers: [], minorTicks: [] };
-    }
+	const markers = useMemo(() => {
+		if (intervalMs <= 0) {
+			return { markers: [], minorTicks: [] };
+		}
 
-    const maxTime = videoDurationMs > 0 ? videoDurationMs : range.end;
-    const visibleStart = Math.max(0, Math.min(range.start, maxTime));
-    const visibleEnd = Math.min(range.end, maxTime);
-    const markerTimes = new Set<number>();
+		const maxTime = videoDurationMs > 0 ? videoDurationMs : range.end;
+		const visibleStart = Math.max(0, Math.min(range.start, maxTime));
+		const visibleEnd = Math.min(range.end, maxTime);
+		const markerTimes = new Set<number>();
 
-    const firstMarker = Math.ceil(visibleStart / intervalMs) * intervalMs;
+		const firstMarker = Math.ceil(visibleStart / intervalMs) * intervalMs;
 
-    for (let time = firstMarker; time <= maxTime; time += intervalMs) {
-      if (time >= visibleStart && time <= visibleEnd) {
-        markerTimes.add(Math.round(time));
-      }
-    }
+		for (let time = firstMarker; time <= maxTime; time += intervalMs) {
+			if (time >= visibleStart && time <= visibleEnd) {
+				markerTimes.add(Math.round(time));
+			}
+		}
 
-    if (visibleStart <= maxTime) {
-      markerTimes.add(Math.round(visibleStart));
-    }
+		if (visibleStart <= maxTime) {
+			markerTimes.add(Math.round(visibleStart));
+		}
 
-    if (videoDurationMs > 0) {
-      markerTimes.add(Math.round(videoDurationMs));
-    }
+		if (videoDurationMs > 0) {
+			markerTimes.add(Math.round(videoDurationMs));
+		}
 
-    const sorted = Array.from(markerTimes)
-      .filter(time => time <= maxTime)
-      .sort((a, b) => a - b);
+		const sorted = Array.from(markerTimes)
+			.filter((time) => time <= maxTime)
+			.sort((a, b) => a - b);
 
-    // Generate minor ticks (4 ticks between major intervals)
-    const minorTicks = [];
-    const minorInterval = intervalMs / 5;
+		// Generate minor ticks (4 ticks between major intervals)
+		const minorTicks = [];
+		const minorInterval = intervalMs / 5;
 
-    for (let time = firstMarker; time <= maxTime; time += minorInterval) {
-      if (time >= visibleStart && time <= visibleEnd) {
-        // Skip if it's close to a major marker
-        const isMajor = Math.abs(time % intervalMs) < 1;
-        if (!isMajor) {
-          minorTicks.push(time);
-        }
-      }
-    }
+		for (let time = firstMarker; time <= maxTime; time += minorInterval) {
+			if (time >= visibleStart && time <= visibleEnd) {
+				// Skip if it's close to a major marker
+				const isMajor = Math.abs(time % intervalMs) < 1;
+				if (!isMajor) {
+					minorTicks.push(time);
+				}
+			}
+		}
 
-    return {
-      markers: sorted.map((time) => ({
-        time,
-        label: formatTimeLabel(time, intervalMs),
-      })),
-      minorTicks
-    };
-  }, [intervalMs, range.end, range.start, videoDurationMs]);
+		return {
+			markers: sorted.map((time) => ({
+				time,
+				label: formatTimeLabel(time, intervalMs),
+			})),
+			minorTicks,
+		};
+	}, [intervalMs, range.end, range.start, videoDurationMs]);
 
-  return (
-    <div
-      className="h-8 bg-[#09090b] border-b border-white/5 relative overflow-hidden select-none"
-      style={{
-        [sideProperty === "right" ? "marginRight" : "marginLeft"]: `${sidebarWidth}px`,
-      }}
-    >
-      {/* Minor Ticks */}
-      {markers.minorTicks.map((time) => {
-        const offset = valueToPixels(time - range.start);
-        return (
-          <div
-            key={`minor-${time}`}
-            className="absolute bottom-0 h-1 w-[1px] bg-white/5"
-            style={{ [sideProperty]: `${offset}px` }}
-          />
-        );
-      })}
+	return (
+		<div
+			className="h-8 bg-[#09090b] border-b border-white/5 relative overflow-hidden select-none"
+			style={{
+				[sideProperty === "right" ? "marginRight" : "marginLeft"]: `${sidebarWidth}px`,
+			}}
+		>
+			{/* Minor Ticks */}
+			{markers.minorTicks.map((time) => {
+				const offset = valueToPixels(time - range.start);
+				return (
+					<div
+						key={`minor-${time}`}
+						className="absolute bottom-0 h-1 w-[1px] bg-white/5"
+						style={{ [sideProperty]: `${offset}px` }}
+					/>
+				);
+			})}
 
-      {/* Major Markers */}
-      {markers.markers.map((marker) => {
-        const offset = valueToPixels(marker.time - range.start);
-        const markerStyle: React.CSSProperties = {
-          position: "absolute",
-          bottom: 0,
-          height: "100%",
-          display: "flex",
-          flexDirection: "row",
-          alignItems: "flex-end",
-          [sideProperty]: `${offset}px`,
-        };
+			{/* Major Markers */}
+			{markers.markers.map((marker) => {
+				const offset = valueToPixels(marker.time - range.start);
+				const markerStyle: React.CSSProperties = {
+					position: "absolute",
+					bottom: 0,
+					height: "100%",
+					display: "flex",
+					flexDirection: "row",
+					alignItems: "flex-end",
+					[sideProperty]: `${offset}px`,
+				};
 
-        return (
-          <div key={marker.time} style={markerStyle}>
-            <div className="flex flex-col items-center pb-1">
-              <div className="h-2 w-[1px] bg-white/20 mb-1" />
-              <span
-                className={cn(
-                  "text-[10px] font-medium tabular-nums tracking-tight",
-                  marker.time === currentTimeMs ? "text-[#2563EB]" : "text-slate-500"
-                )}
-              >
-                {marker.label}
-              </span>
-            </div>
-          </div>
-        );
-      })}
-    </div>
-  );
+				return (
+					<div key={marker.time} style={markerStyle}>
+						<div className="flex flex-col items-center pb-1">
+							<div className="h-2 w-[1px] bg-white/20 mb-1" />
+							<span
+								className={cn(
+									"text-[10px] font-medium tabular-nums tracking-tight",
+									marker.time === currentTimeMs ? "text-[#2563EB]" : "text-slate-500",
+								)}
+							>
+								{marker.label}
+							</span>
+						</div>
+					</div>
+				);
+			})}
+		</div>
+	);
 }
 
 function Timeline({
-  items,
-  videoDurationMs,
-  currentTimeMs,
-  onSeek,
-  onSelectZoom,
-  onSelectTrim,
-  onSelectAnnotation,
-  onSelectSpeed,
-  selectedZoomId,
-  selectedTrimId,
-  selectedAnnotationId,
-  selectedSpeedId,
-  keyframes = [],
+	items,
+	videoDurationMs,
+	currentTimeMs,
+	onSeek,
+	onSelectZoom,
+	onSelectTrim,
+	onSelectAnnotation,
+	onSelectSpeed,
+	selectedZoomId,
+	selectedTrimId,
+	selectedAnnotationId,
+	selectedSpeedId,
+	keyframes = [],
 }: {
-  items: TimelineRenderItem[];
-  videoDurationMs: number;
-  currentTimeMs: number;
-  onSeek?: (time: number) => void;
-  onSelectZoom?: (id: string | null) => void;
-  onSelectTrim?: (id: string | null) => void;
-  onSelectAnnotation?: (id: string | null) => void;
-  onSelectSpeed?: (id: string | null) => void;
-  selectedZoomId: string | null;
-  selectedTrimId?: string | null;
-  selectedAnnotationId?: string | null;
-  selectedSpeedId?: string | null;
-  keyframes?: { id: string; time: number }[];
+	items: TimelineRenderItem[];
+	videoDurationMs: number;
+	currentTimeMs: number;
+	onSeek?: (time: number) => void;
+	onSelectZoom?: (id: string | null) => void;
+	onSelectTrim?: (id: string | null) => void;
+	onSelectAnnotation?: (id: string | null) => void;
+	onSelectSpeed?: (id: string | null) => void;
+	selectedZoomId: string | null;
+	selectedTrimId?: string | null;
+	selectedAnnotationId?: string | null;
+	selectedSpeedId?: string | null;
+	keyframes?: { id: string; time: number }[];
 }) {
-  const { setTimelineRef, style, sidebarWidth, range, pixelsToValue } = useTimelineContext();
-  const localTimelineRef = useRef<HTMLDivElement | null>(null);
+	const { setTimelineRef, style, sidebarWidth, range, pixelsToValue } = useTimelineContext();
+	const localTimelineRef = useRef<HTMLDivElement | null>(null);
 
-  const setRefs = useCallback((node: HTMLDivElement | null) => {
-    setTimelineRef(node);
-    localTimelineRef.current = node;
-  }, [setTimelineRef]);
+	const setRefs = useCallback(
+		(node: HTMLDivElement | null) => {
+			setTimelineRef(node);
+			localTimelineRef.current = node;
+		},
+		[setTimelineRef],
+	);
 
-  const handleTimelineClick = useCallback((e: React.MouseEvent<HTMLDivElement>) => {
-    if (!onSeek || videoDurationMs <= 0) return;
+	const handleTimelineClick = useCallback(
+		(e: React.MouseEvent<HTMLDivElement>) => {
+			if (!onSeek || videoDurationMs <= 0) return;
 
-    // Only clear selection if clicking on empty space (not on items)
-    // This is handled by event propagation - items stop propagation
-    onSelectZoom?.(null);
-    onSelectTrim?.(null);
-    onSelectAnnotation?.(null);
-    onSelectSpeed?.(null);
+			// Only clear selection if clicking on empty space (not on items)
+			// This is handled by event propagation - items stop propagation
+			onSelectZoom?.(null);
+			onSelectTrim?.(null);
+			onSelectAnnotation?.(null);
+			onSelectSpeed?.(null);
 
-    const rect = e.currentTarget.getBoundingClientRect();
-    const clickX = e.clientX - rect.left - sidebarWidth;
+			const rect = e.currentTarget.getBoundingClientRect();
+			const clickX = e.clientX - rect.left - sidebarWidth;
 
-    if (clickX < 0) return;
+			if (clickX < 0) return;
 
-    const relativeMs = pixelsToValue(clickX);
-    const absoluteMs = Math.max(0, Math.min(range.start + relativeMs, videoDurationMs));
-    const timeInSeconds = absoluteMs / 1000;
+			const relativeMs = pixelsToValue(clickX);
+			const absoluteMs = Math.max(0, Math.min(range.start + relativeMs, videoDurationMs));
+			const timeInSeconds = absoluteMs / 1000;
 
-    onSeek(timeInSeconds);
-  }, [onSeek, onSelectZoom, onSelectTrim, onSelectAnnotation, onSelectSpeed, videoDurationMs, sidebarWidth, range.start, pixelsToValue]);
+			onSeek(timeInSeconds);
+		},
+		[
+			onSeek,
+			onSelectZoom,
+			onSelectTrim,
+			onSelectAnnotation,
+			onSelectSpeed,
+			videoDurationMs,
+			sidebarWidth,
+			range.start,
+			pixelsToValue,
+		],
+	);
 
-  const zoomItems = items.filter(item => item.rowId === ZOOM_ROW_ID);
-  const trimItems = items.filter(item => item.rowId === TRIM_ROW_ID);
-  const annotationItems = items.filter(item => item.rowId === ANNOTATION_ROW_ID);
-  const speedItems = items.filter(item => item.rowId === SPEED_ROW_ID);
+	const zoomItems = items.filter((item) => item.rowId === ZOOM_ROW_ID);
+	const trimItems = items.filter((item) => item.rowId === TRIM_ROW_ID);
+	const annotationItems = items.filter((item) => item.rowId === ANNOTATION_ROW_ID);
+	const speedItems = items.filter((item) => item.rowId === SPEED_ROW_ID);
 
-  return (
-    <div
-      ref={setRefs}
-      style={style}
-      className="select-none bg-[#09090b] min-h-[140px] relative cursor-pointer group"
-      onClick={handleTimelineClick}
-    >
-      <div className="absolute inset-0 bg-[linear-gradient(to_right,#ffffff03_1px,transparent_1px)] bg-[length:20px_100%] pointer-events-none" />
-      <TimelineAxis videoDurationMs={videoDurationMs} currentTimeMs={currentTimeMs} />
-      <PlaybackCursor
-        currentTimeMs={currentTimeMs}
-        videoDurationMs={videoDurationMs}
-        onSeek={onSeek}
-        timelineRef={localTimelineRef}
-        keyframes={keyframes}
-      />
+	return (
+		<div
+			ref={setRefs}
+			style={style}
+			className="select-none bg-[#09090b] min-h-[140px] relative cursor-pointer group"
+			onClick={handleTimelineClick}
+		>
+			<div className="absolute inset-0 bg-[linear-gradient(to_right,#ffffff03_1px,transparent_1px)] bg-[length:20px_100%] pointer-events-none" />
+			<TimelineAxis videoDurationMs={videoDurationMs} currentTimeMs={currentTimeMs} />
+			<PlaybackCursor
+				currentTimeMs={currentTimeMs}
+				videoDurationMs={videoDurationMs}
+				onSeek={onSeek}
+				timelineRef={localTimelineRef}
+				keyframes={keyframes}
+			/>
 
-      <Row id={ZOOM_ROW_ID} isEmpty={zoomItems.length === 0} hint="Press Z to add zoom">
-        {zoomItems.map((item) => (
-          <Item
-            id={item.id}
-            key={item.id}
-            rowId={item.rowId}
-            span={item.span}
-            isSelected={item.id === selectedZoomId}
-            onSelect={() => onSelectZoom?.(item.id)}
-            zoomDepth={item.zoomDepth}
-            variant="zoom"
-          >
-            {item.label}
-          </Item>
-        ))}
-      </Row>
+			<Row id={ZOOM_ROW_ID} isEmpty={zoomItems.length === 0} hint="Press Z to add zoom">
+				{zoomItems.map((item) => (
+					<Item
+						id={item.id}
+						key={item.id}
+						rowId={item.rowId}
+						span={item.span}
+						isSelected={item.id === selectedZoomId}
+						onSelect={() => onSelectZoom?.(item.id)}
+						zoomDepth={item.zoomDepth}
+						variant="zoom"
+					>
+						{item.label}
+					</Item>
+				))}
+			</Row>
 
-      <Row id={TRIM_ROW_ID} isEmpty={trimItems.length === 0} hint="Press T to add trim">
-        {trimItems.map((item) => (
-          <Item
-            id={item.id}
-            key={item.id}
-            rowId={item.rowId}
-            span={item.span}
-            isSelected={item.id === selectedTrimId}
-            onSelect={() => onSelectTrim?.(item.id)}
-            variant="trim"
-          >
-            {item.label}
-          </Item>
-        ))}
-      </Row>
+			<Row id={TRIM_ROW_ID} isEmpty={trimItems.length === 0} hint="Press T to add trim">
+				{trimItems.map((item) => (
+					<Item
+						id={item.id}
+						key={item.id}
+						rowId={item.rowId}
+						span={item.span}
+						isSelected={item.id === selectedTrimId}
+						onSelect={() => onSelectTrim?.(item.id)}
+						variant="trim"
+					>
+						{item.label}
+					</Item>
+				))}
+			</Row>
 
-      <Row id={ANNOTATION_ROW_ID} isEmpty={annotationItems.length === 0} hint="Press A to add annotation">
-        {annotationItems.map((item) => (
-          <Item
-            id={item.id}
-            key={item.id}
-            rowId={item.rowId}
-            span={item.span}
-            isSelected={item.id === selectedAnnotationId}
-            onSelect={() => onSelectAnnotation?.(item.id)}
-            variant="annotation"
-          >
-            {item.label}
-          </Item>
-        ))}
-      </Row>
+			<Row
+				id={ANNOTATION_ROW_ID}
+				isEmpty={annotationItems.length === 0}
+				hint="Press A to add annotation"
+			>
+				{annotationItems.map((item) => (
+					<Item
+						id={item.id}
+						key={item.id}
+						rowId={item.rowId}
+						span={item.span}
+						isSelected={item.id === selectedAnnotationId}
+						onSelect={() => onSelectAnnotation?.(item.id)}
+						variant="annotation"
+					>
+						{item.label}
+					</Item>
+				))}
+			</Row>
 
-      <Row id={SPEED_ROW_ID} isEmpty={speedItems.length === 0} hint="Press S to add speed">
-        {speedItems.map((item) => (
-          <Item
-            id={item.id}
-            key={item.id}
-            rowId={item.rowId}
-            span={item.span}
-            isSelected={item.id === selectedSpeedId}
-            onSelect={() => onSelectSpeed?.(item.id)}
-            variant="speed"
-            speedValue={item.speedValue}
-          >
-            {item.label}
-          </Item>
-        ))}
-      </Row>
-    </div>
-  );
+			<Row id={SPEED_ROW_ID} isEmpty={speedItems.length === 0} hint="Press S to add speed">
+				{speedItems.map((item) => (
+					<Item
+						id={item.id}
+						key={item.id}
+						rowId={item.rowId}
+						span={item.span}
+						isSelected={item.id === selectedSpeedId}
+						onSelect={() => onSelectSpeed?.(item.id)}
+						variant="speed"
+						speedValue={item.speedValue}
+					>
+						{item.label}
+					</Item>
+				))}
+			</Row>
+		</div>
+	);
 }
 
 export default function TimelineEditor({
-  videoDuration,
-  currentTime,
-  onSeek,
-  cursorTelemetry = [],
-  zoomRegions,
-  onZoomAdded,
-  onZoomSuggested,
-  onZoomSpanChange,
-  onZoomDelete,
-  selectedZoomId,
-  onSelectZoom,
-  trimRegions = [],
-  onTrimAdded,
-  onTrimSpanChange,
-  onTrimDelete,
-  selectedTrimId,
-  onSelectTrim,
-  annotationRegions = [],
-  onAnnotationAdded,
-  onAnnotationSpanChange,
-  onAnnotationDelete,
-  selectedAnnotationId,
-  onSelectAnnotation,
-  speedRegions = [],
-  onSpeedAdded,
-  onSpeedSpanChange,
-  onSpeedDelete,
-  selectedSpeedId,
-  onSelectSpeed,
-  aspectRatio,
-  onAspectRatioChange,
+	videoDuration,
+	currentTime,
+	onSeek,
+	cursorTelemetry = [],
+	zoomRegions,
+	onZoomAdded,
+	onZoomSuggested,
+	onZoomSpanChange,
+	onZoomDelete,
+	selectedZoomId,
+	onSelectZoom,
+	trimRegions = [],
+	onTrimAdded,
+	onTrimSpanChange,
+	onTrimDelete,
+	selectedTrimId,
+	onSelectTrim,
+	annotationRegions = [],
+	onAnnotationAdded,
+	onAnnotationSpanChange,
+	onAnnotationDelete,
+	selectedAnnotationId,
+	onSelectAnnotation,
+	speedRegions = [],
+	onSpeedAdded,
+	onSpeedSpanChange,
+	onSpeedDelete,
+	selectedSpeedId,
+	onSelectSpeed,
+	aspectRatio,
+	onAspectRatioChange,
 }: TimelineEditorProps) {
+  const t = useScopedT("timeline");
   const totalMs = useMemo(() => Math.max(0, Math.round(videoDuration * 1000)), [videoDuration]);
   const currentTimeMs = useMemo(() => Math.round(currentTime * 1000), [currentTime]);
   const timelineScale = useMemo(() => calculateTimelineScale(videoDuration), [videoDuration]);
@@ -1372,4 +1420,3 @@ export default function TimelineEditor({
     </div>
   );
 }
-
diff --git a/src/contexts/I18nContext.tsx b/src/contexts/I18nContext.tsx
index de9d139b..77670801 100644
--- a/src/contexts/I18nContext.tsx
+++ b/src/contexts/I18nContext.tsx
@@ -96,8 +96,17 @@ function normalizeLocale(locale: string | null | undefined): AppLocale {
   )
   if (canonical) return canonical
 
+  // Handle extended subtags like "zh-Hans-CN" → try "zh-CN"
+  const parts = locale.split('-')
+  if (parts.length >= 3) {
+    const langRegion = `${parts[0]}-${parts[parts.length - 1]}`
+    if (isSupportedLocale(langRegion)) {
+      return langRegion
+    }
+  }
+
   // Language-only fallback (e.g. "zh" matches "zh-CN")
-  const lang = locale.split('-')[0].toLowerCase()
+  const lang = parts[0].toLowerCase()
   const byLang = SUPPORTED_LOCALES.find((l) => l.split('-')[0].toLowerCase() === lang)
   if (byLang) return byLang
 
diff --git a/src/i18n/locales/en/common.json b/src/i18n/locales/en/common.json
index 42341541..c661e479 100644
--- a/src/i18n/locales/en/common.json
+++ b/src/i18n/locales/en/common.json
@@ -1,7 +1,18 @@
 {
-  "app": {
-    "name": "Recordly",
-    "editorTitle": "Recordly Editor",
-    "subtitle": "Screen recording and editing"
-  }
-}
\ No newline at end of file
+	"app": {
+		"name": "Recordly",
+		"editorTitle": "Recordly Editor",
+		"subtitle": "Screen recording and editing"
+	},
+	"actions": {
+		"cancel": "Cancel",
+		"save": "Save",
+		"delete": "Delete",
+		"done": "Done"
+	},
+	"errors": {
+		"invalidFileType": "Invalid file type",
+		"failedToUploadImage": "Failed to upload image",
+		"fileReadError": "There was an error reading the file."
+	}
+}
diff --git a/src/i18n/locales/en/dialogs.json b/src/i18n/locales/en/dialogs.json
index 9e26dfee..0fa405e0 100644
--- a/src/i18n/locales/en/dialogs.json
+++ b/src/i18n/locales/en/dialogs.json
@@ -1 +1,61 @@
-{}
\ No newline at end of file
+{
+	"export": {
+		"pleaseTryAgain": "Please try again",
+		"compilingGifProgress": "Compiling GIF... {{progress}}%",
+		"compilingGifWait": "Compiling GIF... This may take a while",
+		"takeMoment": "This may take a moment...",
+		"exportFailed": "Export Failed",
+		"compilingGifTitle": "Compiling GIF",
+		"exportingFormat": "Exporting {{format}}",
+		"exportComplete": "Export Complete",
+		"formatReady": "Your {{format}} is ready",
+		"showInFolder": "Show in Folder",
+		"compiling": "Compiling",
+		"renderingFrames": "Rendering Frames",
+		"processing": "Processing...",
+		"status": "Status",
+		"format": "Format",
+		"compilingStatus": "Compiling...",
+		"frames": "Frames",
+		"cancelExport": "Cancel Export",
+		"savedSuccess": "{{format}} saved successfully!"
+	},
+	"addFont": {
+		"title": "Add Google Font",
+		"heading": "Add Google Font",
+		"description": "Add a custom font from Google Fonts to use in your annotations.",
+		"urlLabel": "Google Fonts Import URL",
+		"urlPlaceholder": "https://fonts.googleapis.com/css2?family=Roboto&display=swap",
+		"urlHelp": "Get this from Google Fonts: Select a font → Click \"Get font\" → Copy the @import URL",
+		"nameLabel": "Display Name",
+		"namePlaceholder": "My Custom Font",
+		"nameHelp": "This is how the font will appear in the font selector",
+		"adding": "Adding...",
+		"addFont": "Add Font",
+		"enterUrl": "Please enter a Google Fonts import URL",
+		"invalidUrl": "Please enter a valid Google Fonts URL",
+		"enterName": "Please enter a font name",
+		"extractFailed": "Could not extract font family from URL",
+		"addSuccess": "Font \"{{name}}\" added successfully",
+		"addFailed": "Failed to add font",
+		"loadTimeout": "Font took too long to load. Please check the URL and try again.",
+		"loadFailed": "The font could not be loaded. Please verify the Google Fonts URL is correct."
+	},
+	"shortcutsConfig": {
+		"title": "Keyboard Shortcuts",
+		"configurable": "Configurable",
+		"fixed": "Fixed",
+		"pressEscToCancel": "Press Esc to cancel",
+		"clickToChange": "Click to change",
+		"pressAKey": "Press a key…",
+		"alreadyUsedBy": "Already used by <strong>{{action}}</strong>",
+		"swap": "Swap",
+		"reserved": "This shortcut is reserved for \"{{label}}\" and cannot be reassigned.",
+		"saved": "Keyboard shortcuts saved",
+		"resetNotice": "Reset to default shortcuts — click Save to apply",
+		"instructions": "Click a shortcut then press the new key combination. Press Esc to cancel.",
+		"resetToDefaults": "Reset to defaults",
+		"cancel": "Cancel",
+		"save": "Save"
+	}
+}
diff --git a/src/i18n/locales/en/editor.json b/src/i18n/locales/en/editor.json
index 9e26dfee..4cb31ab3 100644
--- a/src/i18n/locales/en/editor.json
+++ b/src/i18n/locales/en/editor.json
@@ -1 +1,91 @@
-{}
\ No newline at end of file
+{
+	"playback": {
+		"play": "Play",
+		"pause": "Pause"
+	},
+	"annotations": {
+		"settings": "Annotation Settings",
+		"active": "Active",
+		"text": "Text",
+		"image": "Image",
+		"arrow": "Arrow",
+		"textContent": "Text Content",
+		"textPlaceholder": "Enter your text...",
+		"fontStyle": "Font Style",
+		"selectStyle": "Select style",
+		"size": "Size",
+		"toggleBold": "Toggle bold",
+		"toggleItalic": "Toggle italic",
+		"toggleUnderline": "Toggle underline",
+		"alignLeft": "Align left",
+		"alignCenter": "Align center",
+		"alignRight": "Align right",
+		"textColor": "Text Color",
+		"background": "Background",
+		"none": "None",
+		"clearBackground": "Clear Background",
+		"uploadImage": "Upload Image",
+		"supportedFormats": "Supported formats: JPG, PNG, GIF, WebP",
+		"arrowDirection": "Arrow Direction",
+		"strokeWidth": "Stroke Width: {{width}}px",
+		"arrowColor": "Arrow Color",
+		"deleteAnnotation": "Delete Annotation",
+		"shortcutsAndTips": "Shortcuts & Tips",
+		"tipSelectAnnotation": "Move playhead to overlapping annotation section and select an item.",
+		"tipCycleForward": "Use Tab to cycle through overlapping items.",
+		"tipCycleBackward": "Use Shift+Tab to cycle backwards.",
+		"imageUploadSuccess": "Image uploaded successfully!",
+		"imageUploadError": "Please upload a JPG, PNG, GIF, or WebP image file."
+	},
+	"fontStyles": {
+		"classic": "Classic",
+		"editor": "Editor",
+		"strong": "Strong",
+		"typewriter": "Typewriter",
+		"deco": "Deco",
+		"simple": "Simple",
+		"modern": "Modern",
+		"clean": "Clean"
+	},
+	"format": {
+		"mp4Video": "MP4 Video",
+		"mp4Description": "High quality video file",
+		"gifAnimation": "GIF Animation",
+		"gifDescription": "Animated image for sharing"
+	},
+	"gifOptions": {
+		"frameRate": "Frame Rate",
+		"outputSize": "Output Size",
+		"outputDimensions": "Output: {{width}} × {{height}}px",
+		"loopAnimation": "Loop Animation",
+		"loopDescription": "GIF will play continuously"
+	},
+	"tutorial": {
+		"howTrimmingWorks": "How trimming works",
+		"title": "How Trimming Works",
+		"understanding": "Understanding how to cut out unwanted parts of your video.",
+		"descriptionP1": "The Trim tool works by defining the segments you want to",
+		"descriptionRemove": "remove",
+		"descriptionP2": "from your video.",
+		"descriptionP3": "Any part of the timeline that is covered by a red trim segment will be cut out when you export.",
+		"visualExample": "Visual Example",
+		"removed": "REMOVED",
+		"kept": "Kept",
+		"finalVideo": "Final Video",
+		"part": "Part {{number}}",
+		"addTrimStep": "1. Add Trim",
+		"addTrimDesc": "Press T or click the scissors icon to mark a section for removal.",
+		"adjustStep": "2. Adjust",
+		"adjustDesc": "Drag the edges of the red region to cover exactly what you want to cut out."
+	},
+	"keyboardShortcuts": {
+		"title": "Keyboard Shortcuts",
+		"customizeTooltip": "Customize shortcuts",
+		"customize": "Customize",
+		"panTimeline": "Pan Timeline",
+		"zoomTimeline": "Zoom Timeline",
+		"cycleAnnotations": "Cycle Annotations",
+		"tab": "Tab"
+	},
+	"openRecordingsFolder": "Open recordings folder"
+}
diff --git a/src/i18n/locales/en/launch.json b/src/i18n/locales/en/launch.json
index 9e26dfee..4829693f 100644
--- a/src/i18n/locales/en/launch.json
+++ b/src/i18n/locales/en/launch.json
@@ -1 +1,36 @@
-{}
\ No newline at end of file
+{
+	"recording": {
+		"disableSystemAudio": "Disable system audio",
+		"enableSystemAudio": "Enable system audio",
+		"disableMicrophone": "Disable microphone",
+		"enableMicrophone": "Enable microphone",
+		"record": "Record",
+		"recordingFolder": "Recording folder: {{path}}",
+		"chooseRecordingsFolder": "Choose recordings folder",
+		"folderPath": "Path: /{{name}}/",
+		"openVideoFile": "Open video file",
+		"openProject": "Open project",
+		"hideHud": "Hide HUD",
+		"closeApp": "Close App"
+	},
+	"sourceSelector": {
+		"loadingSources": "Loading sources...",
+		"screens": "Screens",
+		"windows": "Windows",
+		"windowsNote": "Only visible (non-minimized) windows can be recorded.",
+		"windowPlaceholder": "Window",
+		"cancel": "Cancel",
+		"share": "Share"
+	},
+	"permissions": {
+		"screenRecordingNeeded": "Recordly needs Screen Recording permission before you start. System Settings has been opened. After enabling it, quit and reopen Recordly.",
+		"screenRecordingMissing": "Screen Recording permission is still missing. System Settings has been opened again. Enable it, then quit and reopen Recordly before recording.",
+		"accessibilityNeeded": "Recordly also needs Accessibility permission for cursor tracking. System Settings has been opened. After enabling it, quit and reopen Recordly.",
+		"accessibilityMissing": "Accessibility permission is still missing. System Settings has been opened again. Enable it, then quit and reopen Recordly before recording.",
+		"selectSource": "Please select a source to record",
+		"systemAudioUnavailable": "System audio is not available for this source. Recording will continue without system audio.",
+		"microphoneDenied": "Microphone access was denied. Recording will continue without microphone audio.",
+		"failedToStart": "Failed to start recording: {{error}}",
+		"failedToStartGeneric": "Failed to start recording"
+	}
+}
diff --git a/src/i18n/locales/en/settings.json b/src/i18n/locales/en/settings.json
index 9e26dfee..2405ce5f 100644
--- a/src/i18n/locales/en/settings.json
+++ b/src/i18n/locales/en/settings.json
@@ -1 +1,60 @@
-{}
\ No newline at end of file
+{
+	"zoom": {
+		"level": "Zoom Level",
+		"selectRegion": "Select a zoom region to adjust",
+		"deleteZoom": "Delete Zoom"
+	},
+	"trim": {
+		"deleteRegion": "Delete Trim Region"
+	},
+	"speed": {
+		"playbackSpeed": "Playback Speed",
+		"selectRegion": "Select a speed region to adjust",
+		"deleteRegion": "Delete Speed Region"
+	},
+	"effects": {
+		"title": "Video Effects",
+		"showCursor": "Show Cursor",
+		"loopCursor": "Loop cursor",
+		"backgroundBlur": "Background Blur",
+		"zoomMotionBlur": "Zoom Motion Blur",
+		"connectZooms": "Connect Zooms",
+		"cursorSize": "Cursor Size",
+		"cursorSmoothing": "Cursor Smoothing",
+		"off": "Off",
+		"cursorMotionBlur": "Cursor Motion Blur",
+		"cursorClickBounce": "Cursor Click Bounce",
+		"shadow": "Shadow",
+		"roundness": "Roundness",
+		"padding": "Padding"
+	},
+	"crop": {
+		"title": "Crop Video",
+		"instruction": "Drag on each side to adjust the crop area"
+	},
+	"background": {
+		"title": "Background",
+		"image": "Image",
+		"color": "Color",
+		"gradient": "Gradient",
+		"uploadCustom": "Upload Custom",
+		"uploadSuccess": "Custom image uploaded successfully!",
+		"uploadError": "Please upload a JPG or JPEG image file."
+	},
+	"export": {
+		"mp4": "MP4",
+		"gif": "GIF",
+		"quality": {
+			"low": "Low",
+			"medium": "Medium",
+			"high": "High"
+		},
+		"loop": "Loop",
+		"outputDimensions": "Output: {{dimensions}}px",
+		"loadProject": "Load Project",
+		"saveProject": "Save Project",
+		"exportVideo": "Export {{format}}",
+		"reportBug": "Report Bug",
+		"starOnGithub": "Star on GitHub"
+	}
+}
diff --git a/src/i18n/locales/en/shortcuts.json b/src/i18n/locales/en/shortcuts.json
index 9e26dfee..dd789d98 100644
--- a/src/i18n/locales/en/shortcuts.json
+++ b/src/i18n/locales/en/shortcuts.json
@@ -1 +1,16 @@
-{}
\ No newline at end of file
+{
+	"actions": {
+		"addZoom": "Add Zoom",
+		"addTrim": "Add Trim",
+		"addSpeed": "Add Speed",
+		"addAnnotation": "Add Annotation",
+		"addKeyframe": "Add Keyframe",
+		"deleteSelected": "Delete Selected",
+		"playPause": "Play / Pause",
+		"cycleForward": "Cycle Annotations Forward",
+		"cycleBackward": "Cycle Annotations Backward",
+		"deleteSelectedAlt": "Delete Selected (alt)",
+		"panTimeline": "Pan Timeline",
+		"zoomTimeline": "Zoom Timeline"
+	}
+}
diff --git a/src/i18n/locales/en/timeline.json b/src/i18n/locales/en/timeline.json
index 9e26dfee..23be3abb 100644
--- a/src/i18n/locales/en/timeline.json
+++ b/src/i18n/locales/en/timeline.json
@@ -1 +1,38 @@
-{}
\ No newline at end of file
+{
+	"zoom": {
+		"cannotPlace": "Cannot place zoom here",
+		"existsOrNoSpace": "Zoom already exists at this location or not enough space available.",
+		"suggestHandlerUnavailable": "Zoom suggestion handler unavailable",
+		"noTelemetry": "No cursor telemetry available",
+		"recordFirst": "Record a screencast first to generate cursor-based suggestions.",
+		"noUsableTelemetry": "No usable cursor telemetry",
+		"notEnoughMovement": "The recording does not include enough cursor movement data.",
+		"noInteractionMoments": "No clear interaction moments found",
+		"tryRecording": "Try a recording with pauses or clicks around important actions.",
+		"noAutoZoomSlots": "No auto-zoom slots available",
+		"dwellPointsOverlap": "Detected dwell points overlap existing zoom regions.",
+		"addedSuggestions": "Added {{count}} interaction-based zoom suggestion(s)",
+		"label": "Zoom {{index}}",
+		"addZoom": "Add Zoom (Z)",
+		"suggestZooms": "Suggest Zooms from Cursor"
+	},
+	"trim": {
+		"cannotPlace": "Cannot place trim here",
+		"existsOrNoSpace": "Trim already exists at this location or not enough space available.",
+		"label": "Trim {{index}}",
+		"addTrim": "Add Trim (T)"
+	},
+	"speed": {
+		"cannotPlace": "Cannot place speed here",
+		"existsOrNoSpace": "Speed region already exists at this location or not enough space available.",
+		"label": "Speed"
+	},
+	"annotation": {
+		"label": "Annotation",
+		"image": "Image",
+		"addAnnotation": "Add Annotation (A)"
+	},
+	"addSpeed": "Add Speed (S)",
+	"resizeLeft": "Resize left",
+	"resizeRight": "Resize right"
+}
diff --git a/src/i18n/locales/es/common.json b/src/i18n/locales/es/common.json
index f5f8d728..92020782 100644
--- a/src/i18n/locales/es/common.json
+++ b/src/i18n/locales/es/common.json
@@ -1,7 +1,18 @@
 {
-  "app": {
-    "name": "Recordly",
-    "editorTitle": "Editor de Recordly",
-    "subtitle": "Grabacion de pantalla y edicion"
-  }
-}
\ No newline at end of file
+	"app": {
+		"name": "Recordly",
+		"editorTitle": "Editor de Recordly",
+		"subtitle": "Grabación de pantalla y edición"
+	},
+	"actions": {
+		"cancel": "Cancelar",
+		"save": "Guardar",
+		"delete": "Eliminar",
+		"done": "Hecho"
+	},
+	"errors": {
+		"invalidFileType": "Tipo de archivo inválido",
+		"failedToUploadImage": "Error al subir la imagen",
+		"fileReadError": "Hubo un error al leer el archivo."
+	}
+}
diff --git a/src/i18n/locales/es/dialogs.json b/src/i18n/locales/es/dialogs.json
index 9e26dfee..283682b5 100644
--- a/src/i18n/locales/es/dialogs.json
+++ b/src/i18n/locales/es/dialogs.json
@@ -1 +1,61 @@
-{}
\ No newline at end of file
+{
+	"export": {
+		"pleaseTryAgain": "Por favor inténtalo de nuevo",
+		"compilingGifProgress": "Compilando GIF... {{progress}}%",
+		"compilingGifWait": "Compilando GIF... Esto puede tardar un momento",
+		"takeMoment": "Esto puede tardar un momento...",
+		"exportFailed": "Error en la exportación",
+		"compilingGifTitle": "Compilando GIF",
+		"exportingFormat": "Exportando {{format}}",
+		"exportComplete": "Exportación completada",
+		"formatReady": "Tu {{format}} está listo",
+		"showInFolder": "Mostrar en carpeta",
+		"compiling": "Compilando",
+		"renderingFrames": "Renderizando cuadros",
+		"processing": "Procesando...",
+		"status": "Estado",
+		"format": "Formato",
+		"compilingStatus": "Compilando...",
+		"frames": "Cuadros",
+		"cancelExport": "Cancelar exportación",
+		"savedSuccess": "¡{{format}} guardado exitosamente!"
+	},
+	"addFont": {
+		"title": "Agregar fuente de Google",
+		"heading": "Agregar fuente de Google",
+		"description": "Agrega una fuente personalizada de Google Fonts para usar en tus anotaciones.",
+		"urlLabel": "URL de importación de Google Fonts",
+		"urlPlaceholder": "https://fonts.googleapis.com/css2?family=Roboto&display=swap",
+		"urlHelp": "Obtén esto de Google Fonts: Selecciona una fuente → Haz clic en \"Obtener fuente\" → Copia la URL de @import",
+		"nameLabel": "Nombre para mostrar",
+		"namePlaceholder": "Mi fuente personalizada",
+		"nameHelp": "Así aparecerá la fuente en el selector de fuentes",
+		"adding": "Agregando...",
+		"addFont": "Agregar fuente",
+		"enterUrl": "Por favor ingresa una URL de importación de Google Fonts",
+		"invalidUrl": "Por favor ingresa una URL válida de Google Fonts",
+		"enterName": "Por favor ingresa un nombre de fuente",
+		"extractFailed": "No se pudo extraer el nombre de la familia de fuentes de la URL",
+		"addSuccess": "Fuente \"{{name}}\" agregada exitosamente",
+		"addFailed": "Error al agregar la fuente",
+		"loadTimeout": "La fuente tardó demasiado en cargar. Por favor verifica la URL e inténtalo de nuevo.",
+		"loadFailed": "No se pudo cargar la fuente. Por favor verifica que la URL de Google Fonts sea correcta."
+	},
+	"shortcutsConfig": {
+		"title": "Atajos de teclado",
+		"configurable": "Configurable",
+		"fixed": "Fijo",
+		"pressEscToCancel": "Presiona Esc para cancelar",
+		"clickToChange": "Haz clic para cambiar",
+		"pressAKey": "Presiona una tecla…",
+		"alreadyUsedBy": "Ya está en uso por <strong>{{action}}</strong>",
+		"swap": "Intercambiar",
+		"reserved": "Este atajo está reservado para \"{{label}}\" y no se puede reasignar.",
+		"saved": "Atajos de teclado guardados",
+		"resetNotice": "Restablecer a atajos predeterminados — haz clic en Guardar para aplicar",
+		"instructions": "Haz clic en un atajo y luego presiona la nueva combinación de teclas. Presiona Esc para cancelar.",
+		"resetToDefaults": "Restablecer valores predeterminados",
+		"cancel": "Cancelar",
+		"save": "Guardar"
+	}
+}
diff --git a/src/i18n/locales/es/editor.json b/src/i18n/locales/es/editor.json
index 9e26dfee..32d71924 100644
--- a/src/i18n/locales/es/editor.json
+++ b/src/i18n/locales/es/editor.json
@@ -1 +1,91 @@
-{}
\ No newline at end of file
+{
+	"playback": {
+		"play": "Reproducir",
+		"pause": "Pausar"
+	},
+	"annotations": {
+		"settings": "Configuración de anotaciones",
+		"active": "Activo",
+		"text": "Texto",
+		"image": "Imagen",
+		"arrow": "Flecha",
+		"textContent": "Contenido de texto",
+		"textPlaceholder": "Ingresa tu texto...",
+		"fontStyle": "Estilo de fuente",
+		"selectStyle": "Seleccionar estilo",
+		"size": "Tamaño",
+		"toggleBold": "Alternar negrita",
+		"toggleItalic": "Alternar cursiva",
+		"toggleUnderline": "Alternar subrayado",
+		"alignLeft": "Alinear a la izquierda",
+		"alignCenter": "Alinear al centro",
+		"alignRight": "Alinear a la derecha",
+		"textColor": "Color de texto",
+		"background": "Fondo",
+		"none": "Ninguno",
+		"clearBackground": "Borrar fondo",
+		"uploadImage": "Subir imagen",
+		"supportedFormats": "Formatos compatibles: JPG, PNG, GIF, WebP",
+		"arrowDirection": "Dirección de flecha",
+		"strokeWidth": "Ancho de trazo: {{width}}px",
+		"arrowColor": "Color de flecha",
+		"deleteAnnotation": "Eliminar anotación",
+		"shortcutsAndTips": "Atajos y consejos",
+		"tipSelectAnnotation": "Mueve el cabezal de reproducción a la sección de anotación superpuesta y selecciona un elemento.",
+		"tipCycleForward": "Usa Tab para recorrer los elementos superpuestos.",
+		"tipCycleBackward": "Usa Shift+Tab para recorrer hacia atrás.",
+		"imageUploadSuccess": "¡Imagen subida exitosamente!",
+		"imageUploadError": "Por favor sube un archivo de imagen JPG, PNG, GIF o WebP."
+	},
+	"fontStyles": {
+		"classic": "Clásico",
+		"editor": "Editor",
+		"strong": "Fuerte",
+		"typewriter": "Máquina de escribir",
+		"deco": "Deco",
+		"simple": "Simple",
+		"modern": "Moderno",
+		"clean": "Limpio"
+	},
+	"format": {
+		"mp4Video": "Video MP4",
+		"mp4Description": "Archivo de video de alta calidad",
+		"gifAnimation": "Animación GIF",
+		"gifDescription": "Imagen animada para compartir"
+	},
+	"gifOptions": {
+		"frameRate": "Velocidad de cuadros",
+		"outputSize": "Tamaño de salida",
+		"outputDimensions": "Salida: {{width}} × {{height}}px",
+		"loopAnimation": "Animación en bucle",
+		"loopDescription": "El GIF se reproducirá continuamente"
+	},
+	"tutorial": {
+		"howTrimmingWorks": "Cómo funciona el recorte",
+		"title": "Cómo Funciona el Recorte",
+		"understanding": "Comprende cómo eliminar las partes no deseadas de tu video.",
+		"descriptionP1": "La herramienta de recorte funciona definiendo los segmentos que deseas",
+		"descriptionRemove": "eliminar",
+		"descriptionP2": "de tu video.",
+		"descriptionP3": "Cualquier parte de la línea de tiempo cubierta por un segmento de recorte rojo será eliminada al exportar.",
+		"visualExample": "Ejemplo visual",
+		"removed": "ELIMINADO",
+		"kept": "Conservado",
+		"finalVideo": "Video final",
+		"part": "Parte {{number}}",
+		"addTrimStep": "1. Agregar recorte",
+		"addTrimDesc": "Presiona T o haz clic en el ícono de tijeras para marcar una sección para eliminar.",
+		"adjustStep": "2. Ajustar",
+		"adjustDesc": "Arrastra los bordes de la región roja para cubrir exactamente lo que deseas eliminar."
+	},
+	"keyboardShortcuts": {
+		"title": "Atajos de teclado",
+		"customizeTooltip": "Personalizar atajos",
+		"customize": "Personalizar",
+		"panTimeline": "Desplazar línea de tiempo",
+		"zoomTimeline": "Zoom en línea de tiempo",
+		"cycleAnnotations": "Recorrer anotaciones",
+		"tab": "Tab"
+	},
+	"openRecordingsFolder": "Abrir carpeta de grabaciones"
+}
diff --git a/src/i18n/locales/es/launch.json b/src/i18n/locales/es/launch.json
index 9e26dfee..0bd6d05e 100644
--- a/src/i18n/locales/es/launch.json
+++ b/src/i18n/locales/es/launch.json
@@ -1 +1,36 @@
-{}
\ No newline at end of file
+{
+	"recording": {
+		"disableSystemAudio": "Desactivar audio del sistema",
+		"enableSystemAudio": "Activar audio del sistema",
+		"disableMicrophone": "Desactivar micrófono",
+		"enableMicrophone": "Activar micrófono",
+		"record": "Grabar",
+		"recordingFolder": "Carpeta de grabaciones: {{path}}",
+		"chooseRecordingsFolder": "Elegir carpeta de grabaciones",
+		"folderPath": "Ruta: /{{name}}/",
+		"openVideoFile": "Abrir archivo de video",
+		"openProject": "Abrir proyecto",
+		"hideHud": "Ocultar HUD",
+		"closeApp": "Cerrar aplicación"
+	},
+	"sourceSelector": {
+		"loadingSources": "Cargando fuentes...",
+		"screens": "Pantallas",
+		"windows": "Ventanas",
+		"windowsNote": "Solo se pueden grabar las ventanas visibles (no minimizadas).",
+		"windowPlaceholder": "Ventana",
+		"cancel": "Cancelar",
+		"share": "Compartir"
+	},
+	"permissions": {
+		"screenRecordingNeeded": "Recordly necesita permiso de grabación de pantalla antes de comenzar. Se ha abierto Configuración del sistema. Después de habilitarlo, cierra y vuelve a abrir Recordly.",
+		"screenRecordingMissing": "El permiso de grabación de pantalla aún falta. Se ha abierto Configuración del sistema nuevamente. Habilítalo, luego cierra y vuelve a abrir Recordly antes de grabar.",
+		"accessibilityNeeded": "Recordly también necesita permiso de accesibilidad para el seguimiento del cursor. Se ha abierto Configuración del sistema. Después de habilitarlo, cierra y vuelve a abrir Recordly.",
+		"accessibilityMissing": "El permiso de accesibilidad aún falta. Se ha abierto Configuración del sistema nuevamente. Habilítalo, luego cierra y vuelve a abrir Recordly antes de grabar.",
+		"selectSource": "Por favor selecciona una fuente para grabar",
+		"systemAudioUnavailable": "El audio del sistema no está disponible para esta fuente. La grabación continuará sin audio del sistema.",
+		"microphoneDenied": "Se denegó el acceso al micrófono. La grabación continuará sin audio del micrófono.",
+		"failedToStart": "Error al iniciar la grabación: {{error}}",
+		"failedToStartGeneric": "Error al iniciar la grabación"
+	}
+}
diff --git a/src/i18n/locales/es/settings.json b/src/i18n/locales/es/settings.json
index 9e26dfee..7b3a1379 100644
--- a/src/i18n/locales/es/settings.json
+++ b/src/i18n/locales/es/settings.json
@@ -1 +1,60 @@
-{}
\ No newline at end of file
+{
+	"zoom": {
+		"level": "Nivel de zoom",
+		"selectRegion": "Selecciona una región de zoom para ajustar",
+		"deleteZoom": "Eliminar zoom"
+	},
+	"trim": {
+		"deleteRegion": "Eliminar región de recorte"
+	},
+	"speed": {
+		"playbackSpeed": "Velocidad de reproducción",
+		"selectRegion": "Selecciona una región de velocidad para ajustar",
+		"deleteRegion": "Eliminar región de velocidad"
+	},
+	"effects": {
+		"title": "Efectos de video",
+		"showCursor": "Mostrar cursor",
+		"loopCursor": "Cursor en bucle",
+		"backgroundBlur": "Desenfoque de fondo",
+		"zoomMotionBlur": "Desenfoque de movimiento del zoom",
+		"connectZooms": "Conectar zooms",
+		"cursorSize": "Tamaño del cursor",
+		"cursorSmoothing": "Suavizado del cursor",
+		"off": "Desactivado",
+		"cursorMotionBlur": "Desenfoque de movimiento del cursor",
+		"cursorClickBounce": "Rebote de clic del cursor",
+		"shadow": "Sombra",
+		"roundness": "Redondez",
+		"padding": "Relleno"
+	},
+	"crop": {
+		"title": "Recortar video",
+		"instruction": "Arrastra cada lado para ajustar el área de recorte"
+	},
+	"background": {
+		"title": "Fondo",
+		"image": "Imagen",
+		"color": "Color",
+		"gradient": "Degradado",
+		"uploadCustom": "Subir personalizado",
+		"uploadSuccess": "¡Imagen personalizada subida exitosamente!",
+		"uploadError": "Por favor sube un archivo de imagen JPG o JPEG."
+	},
+	"export": {
+		"mp4": "MP4",
+		"gif": "GIF",
+		"quality": {
+			"low": "Baja",
+			"medium": "Media",
+			"high": "Alta"
+		},
+		"loop": "Bucle",
+		"outputDimensions": "Salida: {{dimensions}}px",
+		"loadProject": "Cargar proyecto",
+		"saveProject": "Guardar proyecto",
+		"exportVideo": "Exportar {{format}}",
+		"reportBug": "Reportar error",
+		"starOnGithub": "Estrella en GitHub"
+	}
+}
diff --git a/src/i18n/locales/es/shortcuts.json b/src/i18n/locales/es/shortcuts.json
index 9e26dfee..28b42cbc 100644
--- a/src/i18n/locales/es/shortcuts.json
+++ b/src/i18n/locales/es/shortcuts.json
@@ -1 +1,16 @@
-{}
\ No newline at end of file
+{
+	"actions": {
+		"addZoom": "Agregar Zoom",
+		"addTrim": "Agregar Recorte",
+		"addSpeed": "Agregar Velocidad",
+		"addAnnotation": "Agregar Anotación",
+		"addKeyframe": "Agregar Fotograma clave",
+		"deleteSelected": "Eliminar seleccionado",
+		"playPause": "Reproducir / Pausar",
+		"cycleForward": "Recorrer anotaciones hacia adelante",
+		"cycleBackward": "Recorrer anotaciones hacia atrás",
+		"deleteSelectedAlt": "Eliminar seleccionado (alt)",
+		"panTimeline": "Desplazar línea de tiempo",
+		"zoomTimeline": "Zoom en línea de tiempo"
+	}
+}
diff --git a/src/i18n/locales/es/timeline.json b/src/i18n/locales/es/timeline.json
index 9e26dfee..ed948860 100644
--- a/src/i18n/locales/es/timeline.json
+++ b/src/i18n/locales/es/timeline.json
@@ -1 +1,38 @@
-{}
\ No newline at end of file
+{
+	"zoom": {
+		"cannotPlace": "No se puede colocar zoom aquí",
+		"existsOrNoSpace": "Ya existe un zoom en esta ubicación o no hay suficiente espacio.",
+		"suggestHandlerUnavailable": "Manejador de sugerencias de zoom no disponible",
+		"noTelemetry": "No hay telemetría de cursor disponible",
+		"recordFirst": "Graba una captura de pantalla primero para generar sugerencias basadas en el cursor.",
+		"noUsableTelemetry": "No hay telemetría de cursor utilizable",
+		"notEnoughMovement": "La grabación no incluye suficientes datos de movimiento del cursor.",
+		"noInteractionMoments": "No se encontraron momentos de interacción claros",
+		"tryRecording": "Intenta una grabación con pausas o clics alrededor de acciones importantes.",
+		"noAutoZoomSlots": "No hay espacios de auto-zoom disponibles",
+		"dwellPointsOverlap": "Los puntos de permanencia detectados se superponen con regiones de zoom existentes.",
+		"addedSuggestions": "Se agregaron {{count}} sugerencia(s) de zoom basadas en interacción",
+		"label": "Zoom {{index}}",
+		"addZoom": "Agregar Zoom (Z)",
+		"suggestZooms": "Sugerir zooms desde cursor"
+	},
+	"trim": {
+		"cannotPlace": "No se puede colocar recorte aquí",
+		"existsOrNoSpace": "Ya existe un recorte en esta ubicación o no hay suficiente espacio.",
+		"label": "Recorte {{index}}",
+		"addTrim": "Agregar Recorte (T)"
+	},
+	"speed": {
+		"cannotPlace": "No se puede colocar velocidad aquí",
+		"existsOrNoSpace": "Ya existe una región de velocidad en esta ubicación o no hay suficiente espacio.",
+		"label": "Velocidad"
+	},
+	"annotation": {
+		"label": "Anotación",
+		"image": "Imagen",
+		"addAnnotation": "Agregar Anotación (A)"
+	},
+	"addSpeed": "Agregar Velocidad (S)",
+	"resizeLeft": "Redimensionar izquierda",
+	"resizeRight": "Redimensionar derecha"
+}
diff --git a/src/i18n/locales/zh-CN/common.json b/src/i18n/locales/zh-CN/common.json
index 0967ef42..bee0c88b 100644
--- a/src/i18n/locales/zh-CN/common.json
+++ b/src/i18n/locales/zh-CN/common.json
@@ -1 +1,18 @@
-{}
+{
+	"app": {
+		"name": "Recordly",
+		"editorTitle": "Recordly 编辑器",
+		"subtitle": "屏幕录制与编辑"
+	},
+	"actions": {
+		"cancel": "取消",
+		"save": "保存",
+		"delete": "删除",
+		"done": "完成"
+	},
+	"errors": {
+		"invalidFileType": "无效的文件类型",
+		"failedToUploadImage": "上传图片失败",
+		"fileReadError": "读取文件时出错。"
+	}
+}
diff --git a/src/i18n/locales/zh-CN/dialogs.json b/src/i18n/locales/zh-CN/dialogs.json
index 0967ef42..a1749127 100644
--- a/src/i18n/locales/zh-CN/dialogs.json
+++ b/src/i18n/locales/zh-CN/dialogs.json
@@ -1 +1,61 @@
-{}
+{
+	"export": {
+		"pleaseTryAgain": "请重试",
+		"compilingGifProgress": "正在编译 GIF... {{progress}}%",
+		"compilingGifWait": "正在编译 GIF... 这可能需要一些时间",
+		"takeMoment": "这可能需要一点时间...",
+		"exportFailed": "导出失败",
+		"compilingGifTitle": "正在编译 GIF",
+		"exportingFormat": "正在导出 {{format}}",
+		"exportComplete": "导出完成",
+		"formatReady": "您的 {{format}} 已准备就绪",
+		"showInFolder": "在文件夹中显示",
+		"compiling": "正在编译",
+		"renderingFrames": "正在渲染帧",
+		"processing": "正在处理...",
+		"status": "状态",
+		"format": "格式",
+		"compilingStatus": "正在编译...",
+		"frames": "帧",
+		"cancelExport": "取消导出",
+		"savedSuccess": "{{format}} 保存成功！"
+	},
+	"addFont": {
+		"title": "添加 Google 字体",
+		"heading": "添加 Google 字体",
+		"description": "从 Google Fonts 添加自定义字体用于注释。",
+		"urlLabel": "Google Fonts 导入 URL",
+		"urlPlaceholder": "https://fonts.googleapis.com/css2?family=Roboto&display=swap",
+		"urlHelp": "从 Google Fonts 获取：选择字体 → 点击「获取字体」→ 复制 @import URL",
+		"nameLabel": "显示名称",
+		"namePlaceholder": "我的自定义字体",
+		"nameHelp": "此名称将显示在字体选择器中",
+		"adding": "正在添加...",
+		"addFont": "添加字体",
+		"enterUrl": "请输入 Google Fonts 导入 URL",
+		"invalidUrl": "请输入有效的 Google Fonts URL",
+		"enterName": "请输入字体名称",
+		"extractFailed": "无法从 URL 提取字体系列名称",
+		"addSuccess": "字体 \"{{name}}\" 添加成功",
+		"addFailed": "添加字体失败",
+		"loadTimeout": "字体加载超时。请检查 URL 后重试。",
+		"loadFailed": "无法加载字体。请确认 Google Fonts URL 是否正确。"
+	},
+	"shortcutsConfig": {
+		"title": "键盘快捷键",
+		"configurable": "可配置",
+		"fixed": "固定",
+		"pressEscToCancel": "按 Esc 取消",
+		"clickToChange": "点击以更改",
+		"pressAKey": "按下按键…",
+		"alreadyUsedBy": "已被 <strong>{{action}}</strong> 使用",
+		"swap": "交换",
+		"reserved": "此快捷键已保留给 \"{{label}}\"，无法重新分配。",
+		"saved": "键盘快捷键已保存",
+		"resetNotice": "已重置为默认快捷键 - 点击保存以应用",
+		"instructions": "点击快捷键后按下新的组合键。按 Esc 取消。",
+		"resetToDefaults": "重置为默认",
+		"cancel": "取消",
+		"save": "保存"
+	}
+}
diff --git a/src/i18n/locales/zh-CN/editor.json b/src/i18n/locales/zh-CN/editor.json
index 0967ef42..97358490 100644
--- a/src/i18n/locales/zh-CN/editor.json
+++ b/src/i18n/locales/zh-CN/editor.json
@@ -1 +1,91 @@
-{}
+{
+	"playback": {
+		"play": "播放",
+		"pause": "暂停"
+	},
+	"annotations": {
+		"settings": "注释设置",
+		"active": "活动",
+		"text": "文本",
+		"image": "图片",
+		"arrow": "箭头",
+		"textContent": "文本内容",
+		"textPlaceholder": "输入文本...",
+		"fontStyle": "字体样式",
+		"selectStyle": "选择样式",
+		"size": "大小",
+		"toggleBold": "切换粗体",
+		"toggleItalic": "切换斜体",
+		"toggleUnderline": "切换下划线",
+		"alignLeft": "左对齐",
+		"alignCenter": "居中对齐",
+		"alignRight": "右对齐",
+		"textColor": "文本颜色",
+		"background": "背景",
+		"none": "无",
+		"clearBackground": "清除背景",
+		"uploadImage": "上传图片",
+		"supportedFormats": "支持格式：JPG、PNG、GIF、WebP",
+		"arrowDirection": "箭头方向",
+		"strokeWidth": "描边宽度：{{width}}px",
+		"arrowColor": "箭头颜色",
+		"deleteAnnotation": "删除注释",
+		"shortcutsAndTips": "快捷键与提示",
+		"tipSelectAnnotation": "将播放头移动到注释重叠区域并选择项目。",
+		"tipCycleForward": "使用 Tab 循环切换重叠项目。",
+		"tipCycleBackward": "使用 Shift+Tab 反向循环切换。",
+		"imageUploadSuccess": "图片上传成功！",
+		"imageUploadError": "请上传 JPG、PNG、GIF 或 WebP 图片文件。"
+	},
+	"fontStyles": {
+		"classic": "经典",
+		"editor": "编辑器",
+		"strong": "加粗",
+		"typewriter": "打字机",
+		"deco": "装饰",
+		"simple": "简约",
+		"modern": "现代",
+		"clean": "清爽"
+	},
+	"format": {
+		"mp4Video": "MP4 视频",
+		"mp4Description": "高质量视频文件",
+		"gifAnimation": "GIF 动画",
+		"gifDescription": "可分享的动态图片"
+	},
+	"gifOptions": {
+		"frameRate": "帧率",
+		"outputSize": "输出尺寸",
+		"outputDimensions": "输出：{{width}} × {{height}}px",
+		"loopAnimation": "循环动画",
+		"loopDescription": "GIF 将持续播放"
+	},
+	"tutorial": {
+		"howTrimmingWorks": "修剪的工作方式",
+		"title": "修剪的工作方式",
+		"understanding": "了解如何裁剪视频中不需要的部分。",
+		"descriptionP1": "修剪工具通过定义要",
+		"descriptionRemove": "移除",
+		"descriptionP2": "的片段来工作。",
+		"descriptionP3": "时间线上被红色修剪区域覆盖的部分将在导出时被剪掉。",
+		"visualExample": "视觉示例",
+		"removed": "已移除",
+		"kept": "保留",
+		"finalVideo": "最终视频",
+		"part": "第 {{number}} 部分",
+		"addTrimStep": "1. 添加修剪",
+		"addTrimDesc": "按 T 或点击剪刀图标标记要移除的部分。",
+		"adjustStep": "2. 调整",
+		"adjustDesc": "拖动红色区域的边缘，精确覆盖要剪掉的部分。"
+	},
+	"keyboardShortcuts": {
+		"title": "键盘快捷键",
+		"customizeTooltip": "自定义快捷键",
+		"customize": "自定义",
+		"panTimeline": "平移时间线",
+		"zoomTimeline": "缩放时间线",
+		"cycleAnnotations": "循环切换注释",
+		"tab": "Tab"
+	},
+	"openRecordingsFolder": "打开录制文件夹"
+}
diff --git a/src/i18n/locales/zh-CN/launch.json b/src/i18n/locales/zh-CN/launch.json
index 0967ef42..9ac43f3a 100644
--- a/src/i18n/locales/zh-CN/launch.json
+++ b/src/i18n/locales/zh-CN/launch.json
@@ -1 +1,36 @@
-{}
+{
+	"recording": {
+		"disableSystemAudio": "禁用系统音频",
+		"enableSystemAudio": "启用系统音频",
+		"disableMicrophone": "禁用麦克风",
+		"enableMicrophone": "启用麦克风",
+		"record": "录制",
+		"recordingFolder": "录制文件夹：{{path}}",
+		"chooseRecordingsFolder": "选择录制文件夹",
+		"folderPath": "路径：/{{name}}/",
+		"openVideoFile": "打开视频文件",
+		"openProject": "打开项目",
+		"hideHud": "隐藏 HUD",
+		"closeApp": "关闭应用"
+	},
+	"sourceSelector": {
+		"loadingSources": "正在加载源...",
+		"screens": "屏幕",
+		"windows": "窗口",
+		"windowsNote": "仅可录制可见（非最小化）窗口。",
+		"windowPlaceholder": "窗口",
+		"cancel": "取消",
+		"share": "共享"
+	},
+	"permissions": {
+		"screenRecordingNeeded": "Recordly 需要屏幕录制权限才能开始。系统设置已打开。启用后请退出并重新打开 Recordly。",
+		"screenRecordingMissing": "屏幕录制权限仍然缺失。系统设置已再次打开。请启用权限，然后退出并重新打开 Recordly。",
+		"accessibilityNeeded": "Recordly 还需要辅助功能权限以跟踪光标。系统设置已打开。启用后请退出并重新打开 Recordly。",
+		"accessibilityMissing": "辅助功能权限仍然缺失。系统设置已再次打开。请启用权限，然后退出并重新打开 Recordly。",
+		"selectSource": "请选择要录制的源",
+		"systemAudioUnavailable": "此源不支持系统音频。将继续录制但不包含系统音频。",
+		"microphoneDenied": "麦克风访问被拒绝。将继续录制但不包含麦克风音频。",
+		"failedToStart": "录制启动失败：{{error}}",
+		"failedToStartGeneric": "录制启动失败"
+	}
+}
diff --git a/src/i18n/locales/zh-CN/settings.json b/src/i18n/locales/zh-CN/settings.json
index 0967ef42..46106e60 100644
--- a/src/i18n/locales/zh-CN/settings.json
+++ b/src/i18n/locales/zh-CN/settings.json
@@ -1 +1,60 @@
-{}
+{
+	"zoom": {
+		"level": "缩放级别",
+		"selectRegion": "选择缩放区域以调整",
+		"deleteZoom": "删除缩放"
+	},
+	"trim": {
+		"deleteRegion": "删除修剪区域"
+	},
+	"speed": {
+		"playbackSpeed": "播放速度",
+		"selectRegion": "选择变速区域以调整",
+		"deleteRegion": "删除变速区域"
+	},
+	"effects": {
+		"title": "视频效果",
+		"showCursor": "显示光标",
+		"loopCursor": "循环光标",
+		"backgroundBlur": "背景模糊",
+		"zoomMotionBlur": "缩放运动模糊",
+		"connectZooms": "连接缩放",
+		"cursorSize": "光标大小",
+		"cursorSmoothing": "光标平滑",
+		"off": "关",
+		"cursorMotionBlur": "光标运动模糊",
+		"cursorClickBounce": "光标点击弹跳",
+		"shadow": "阴影",
+		"roundness": "圆角",
+		"padding": "内边距"
+	},
+	"crop": {
+		"title": "裁剪视频",
+		"instruction": "拖动各边以调整裁剪区域"
+	},
+	"background": {
+		"title": "背景",
+		"image": "图片",
+		"color": "颜色",
+		"gradient": "渐变",
+		"uploadCustom": "上传自定义",
+		"uploadSuccess": "自定义图片上传成功！",
+		"uploadError": "请上传 JPG 或 JPEG 图片文件。"
+	},
+	"export": {
+		"mp4": "MP4",
+		"gif": "GIF",
+		"quality": {
+			"low": "低",
+			"medium": "中",
+			"high": "高"
+		},
+		"loop": "循环",
+		"outputDimensions": "输出：{{dimensions}}px",
+		"loadProject": "加载项目",
+		"saveProject": "保存项目",
+		"exportVideo": "导出{{format}}",
+		"reportBug": "报告问题",
+		"starOnGithub": "在 GitHub 上加星"
+	}
+}
diff --git a/src/i18n/locales/zh-CN/shortcuts.json b/src/i18n/locales/zh-CN/shortcuts.json
index 0967ef42..9e3f599b 100644
--- a/src/i18n/locales/zh-CN/shortcuts.json
+++ b/src/i18n/locales/zh-CN/shortcuts.json
@@ -1 +1,16 @@
-{}
+{
+	"actions": {
+		"addZoom": "添加缩放",
+		"addTrim": "添加修剪",
+		"addSpeed": "添加变速",
+		"addAnnotation": "添加注释",
+		"addKeyframe": "添加关键帧",
+		"deleteSelected": "删除选中",
+		"playPause": "播放 / 暂停",
+		"cycleForward": "向前循环切换注释",
+		"cycleBackward": "向后循环切换注释",
+		"deleteSelectedAlt": "删除选中（替代）",
+		"panTimeline": "平移时间线",
+		"zoomTimeline": "缩放时间线"
+	}
+}
diff --git a/src/i18n/locales/zh-CN/timeline.json b/src/i18n/locales/zh-CN/timeline.json
index 0967ef42..53e1054d 100644
--- a/src/i18n/locales/zh-CN/timeline.json
+++ b/src/i18n/locales/zh-CN/timeline.json
@@ -1 +1,38 @@
-{}
+{
+	"zoom": {
+		"cannotPlace": "无法在此处放置缩放",
+		"existsOrNoSpace": "此位置已存在缩放或空间不足。",
+		"suggestHandlerUnavailable": "缩放建议处理不可用",
+		"noTelemetry": "无光标遥测数据",
+		"recordFirst": "请先录制屏幕以生成基于光标的建议。",
+		"noUsableTelemetry": "无可用的光标遥测数据",
+		"notEnoughMovement": "录制中未包含足够的光标移动数据。",
+		"noInteractionMoments": "未找到明显的交互时刻",
+		"tryRecording": "尝试在关键操作附近有停顿或点击的录制。",
+		"noAutoZoomSlots": "没有可用的自动缩放位置",
+		"dwellPointsOverlap": "检测到的停留点与现有缩放区域重叠。",
+		"addedSuggestions": "已添加 {{count}} 个基于交互的缩放建议",
+		"label": "缩放 {{index}}",
+		"addZoom": "添加缩放 (Z)",
+		"suggestZooms": "从光标建议缩放"
+	},
+	"trim": {
+		"cannotPlace": "无法在此处放置修剪",
+		"existsOrNoSpace": "此位置已存在修剪或空间不足。",
+		"label": "修剪 {{index}}",
+		"addTrim": "添加修剪 (T)"
+	},
+	"speed": {
+		"cannotPlace": "无法在此处放置变速",
+		"existsOrNoSpace": "此位置已存在变速区域或空间不足。",
+		"label": "变速"
+	},
+	"annotation": {
+		"label": "注释",
+		"image": "图片",
+		"addAnnotation": "添加注释 (A)"
+	},
+	"addSpeed": "添加变速 (S)",
+	"resizeLeft": "向左调整",
+	"resizeRight": "向右调整"
+}