diff --git a/frontend/js/i18n/de.js b/frontend/js/i18n/de.js
index 7b9769a..0a578f3 100644
--- a/frontend/js/i18n/de.js
+++ b/frontend/js/i18n/de.js
@@ -194,4 +194,250 @@ export default {
   'content.toast.folder_deleted': 'Ordner gelöscht',
   'content.toast.moved': 'Verschoben',
   'content.toast.moved_to_root': 'In den Hauptordner verschoben',
+
+  // Device detail
+  'device.back': 'Zurück zu Bildschirmen',
+  'device.owner_label': 'Besitzer: {owner}',
+  'device.rename': 'Umbenennen',
+  'device.screenshot_btn': 'Screenshot',
+  'device.remove': 'Entfernen',
+  'device.click_to_confirm': 'Erneut klicken zum Bestätigen',
+  'device.prompt_new_name': 'Neuen Namen eingeben:',
+  'device.confirm_discard_draft': 'Alle nicht veröffentlichten Änderungen verwerfen und zur letzten veröffentlichten Version zurückkehren?',
+  'device.failed_load': 'Gerät konnte nicht geladen werden',
+  'device.no_screenshot': 'Kein Screenshot verfügbar. Klicken Sie auf „Screenshot", um einen aufzunehmen.',
+  'device.no_content_assigned': 'Kein Inhalt zugewiesen',
+  'device.now_playing_id': 'Wiedergabe: {id}',
+  'device.playlist_count_one': '1 Element in der Playlist',
+  'device.playlist_count_other': '{n} Elemente in der Playlist',
+  'device.tab.now_playing': 'Aktuelle Wiedergabe',
+  'device.tab.now_playing_tip': 'Live-Screenshot dessen, was aktuell auf diesem Gerät angezeigt wird.',
+  'device.tab.playlist': 'Playlist',
+  'device.tab.playlist_tip': 'Diesem Gerät zugewiesener Inhalt. Ziehen zum Sortieren. Medien, Widgets oder Kioskseiten hinzufügen.',
+  'device.tab.info': 'Geräteinfos',
+  'device.tab.info_tip': 'Hardware-Telemetrie, Ausrichtung, Notizen und Gerätesteuerung.',
+  'device.tab.remote': 'Fernsteuerung',
+  'device.tab.remote_tip': 'Bildschirm in Echtzeit anzeigen und Tastendrücke senden. Funktioniert mit Android-APK und Web-Player.',
+  'device.draft.banner_title': 'Unveröffentlichte Änderungen',
+  'device.draft.devices_showing_published': 'Geräte zeigen weiterhin die zuletzt veröffentlichte Version.',
+  'device.draft.never_published': 'Diese Playlist wurde noch nie veröffentlicht. Geräte zeigen nichts an, bis Sie veröffentlichen.',
+  'device.draft.discard': 'Verwerfen',
+  'device.draft.publish': 'Veröffentlichen',
+  'device.draft.publishing': 'Wird veröffentlicht...',
+  'device.layout.label': 'Bildschirm-Layout',
+  'device.layout.fullscreen_default': 'Vollbild (Standard)',
+  'device.layout.zones_count': '{name} ({n} Zonen)',
+  'device.layout.template_zones_count': '[Vorlage] {name} ({n} Zonen)',
+  'device.layout.apply': 'Anwenden',
+  'device.playlist.label': 'Playlist',
+  'device.playlist.no_playlist': 'Keine Playlist',
+  'device.playlist.copy_to_btn': 'Kopieren nach...',
+  'device.playlist.add_content_btn': 'Inhalt hinzufügen',
+  'device.playlist.empty_title': 'Kein Inhalt zugewiesen',
+  'device.playlist.empty_desc': 'Fügen Sie Inhalt aus Ihrer Bibliothek zur Playlist dieses Bildschirms hinzu.',
+  'device.playlist_picker.with_count': '{name} — {n} Elemente',
+  'device.playlist_picker.with_auto': '{name} (auto) — {n} Elemente',
+  'device.info.status': 'Status',
+  'device.info.ip_address': 'IP-Adresse',
+  'device.info.battery': 'Akku',
+  'device.info.storage': 'Speicher',
+  'device.info.size_free': '{size} frei',
+  'device.info.player_type': 'Player-Typ',
+  'device.info.web_player': 'Web-Player',
+  'device.info.wifi': 'WLAN',
+  'device.info.uptime': 'Betriebszeit',
+  'device.info.android_version': 'Android-Version',
+  'device.info.app_version': 'App-Version',
+  'device.info.screen_resolution': 'Bildschirmauflösung',
+  'device.info.ram': 'RAM',
+  'device.info.cpu_usage': 'CPU-Auslastung',
+  'device.timeline.title': 'Verfügbarkeit (letzte 24 Stunden)',
+  'device.timeline.h24_ago': 'vor 24h',
+  'device.timeline.now': 'Jetzt',
+  'device.timeline.online': 'Online',
+  'device.timeline.offline': 'Offline',
+  'device.timeline.no_data': 'Keine Daten',
+  'device.timeline.uptime_pct_tracked': '{pct}% Verfügbarkeit ({n}min erfasst)',
+  'device.timeline.uptime_pct_no_data': '{pct}% Verfügbarkeit (keine Daten)',
+  'device.form.orientation_label': 'Ausrichtung / Drehung',
+  'device.form.orientation.landscape': 'Querformat (0°)',
+  'device.form.orientation.portrait': 'Hochformat (90° im UZS)',
+  'device.form.orientation.landscape_flipped': 'Querformat gedreht (180°)',
+  'device.form.orientation.portrait_flipped': 'Hochformat gedreht (270° im UZS)',
+  'device.form.default_content_label': 'Standardinhalt',
+  'device.form.default_content_none': 'Keiner ("Warten..." anzeigen)',
+  'device.form.notes_label': 'Notizen',
+  'device.form.notes_placeholder': 'Standort, Setup-Details usw.',
+  'device.form.save_settings': 'Einstellungen speichern',
+  'device.ctl.reboot_device': 'Gerät neu starten',
+  'device.ctl.screen_off': 'Bildschirm aus',
+  'device.ctl.screen_on': 'Bildschirm an',
+  'device.ctl.launch_player': 'Player starten',
+  'device.ctl.force_update': 'Update erzwingen',
+  'device.ctl.shutdown': 'Herunterfahren',
+  'device.remote.start_prompt': 'Auf „Fernsteuerung starten" klicken zum Beginnen',
+  'device.remote.start': 'Fernsteuerung starten',
+  'device.remote.stop': 'Fernsteuerung beenden',
+  'device.remote.vol_up': 'Vol +',
+  'device.remote.vol_down': 'Vol -',
+  'device.remote.home': 'Start',
+  'device.remote.back': 'Zurück',
+  'device.remote.recents': 'Zuletzt',
+  'device.remote.power': 'Power',
+  'device.remote.ok': 'OK',
+  'device.remote.settings': 'Einstellungen',
+  'device.remote.scrn_off': 'Bs. aus',
+  'device.remote.scrn_on': 'Bs. an',
+  'device.remote.enable_system_view': 'Systemansicht aktivieren',
+  'device.remote.system_view_tooltip': 'Fordert den Gerätenutzer auf, Vollbildaufnahme zu erlauben - aktiviert Fernansicht von Startbildschirm, Einstellungen und anderen Apps',
+  'device.remote.system_view_hint': 'Einmalige Genehmigung am Gerät erforderlich',
+  'device.remote.waiting_for_approval': 'Warte auf Genehmigung am Gerät...',
+  'device.remote.system_view_enabled': 'Systemansicht aktiviert',
+  'device.remote.unlocked_hint': 'Navigation und Systemsteuerung freigeschaltet',
+  'device.pl_item.widget_with_type': 'Widget ({type})',
+  'device.pl_item.youtube': 'YouTube',
+  'device.pl_item.video': 'Video',
+  'device.pl_item.image': 'Bild',
+  'device.pl_item.zone_label': 'Zone: {id}',
+  'device.pl_item.no_zone': 'Keine Zone',
+  'device.pl_item.mute': 'Stummschalten',
+  'device.pl_item.unmute': 'Stummschaltung aufheben',
+  'device.pl_item.remove': 'Entfernen',
+  'device.copy.no_other_devices': 'Keine anderen Geräte zum Kopieren',
+  'device.copy.prompt': 'Playlist auf welches Gerät kopieren?\n\n{list}\n\nNummer eingeben:',
+  'device.copy.invalid_selection': 'Ungültige Auswahl',
+  'device.copy.toast': '{n} Elemente nach {device} kopiert',
+  'device.assign.empty_all': 'Noch keine Inhalte, Widgets oder Kioskseiten. Erstellen Sie zuerst etwas!',
+  'device.assign.modal_title': 'Zur Playlist hinzufügen',
+  'device.assign.zone_label': 'Zone',
+  'device.assign.zone_default': 'Standard (Vollbild)',
+  'device.assign.duration_label': 'Anzeigedauer (Sekunden, für Bilder/Widgets)',
+  'device.assign.tab.media': 'Medien ({n})',
+  'device.assign.tab.widgets': 'Widgets ({n})',
+  'device.assign.tab.kiosk': 'Kiosk ({n})',
+  'device.assign.no_media': 'Noch keine Medien hochgeladen',
+  'device.assign.no_widgets': 'Noch keine Widgets erstellt.',
+  'device.assign.no_kiosk': 'Noch keine Kioskseiten.',
+  'device.assign.create_one': 'Eines erstellen',
+  'device.assign.add_selected': 'Auswahl hinzufügen',
+  'device.assign.select_first': 'Erst etwas auswählen',
+  'device.assign.kiosk_widget_name': 'Kiosk: {name}',
+  'device.toast.screenshot_requested': 'Screenshot angefordert',
+  'device.toast.renamed': 'Bildschirm umbenannt',
+  'device.toast.removing': 'Wird entfernt...',
+  'device.toast.removed': 'Bildschirm entfernt',
+  'device.toast.settings_saved': 'Einstellungen gespeichert',
+  'device.toast.published': 'Playlist veröffentlicht — Geräte aktualisiert',
+  'device.toast.draft_discarded': 'Entwurfsänderungen verworfen',
+  'device.toast.playlist_changed': 'Playlist geändert',
+  'device.toast.layout_applied': 'Layout angewendet',
+  'device.toast.switched_to_fullscreen': 'Auf Vollbild umgestellt',
+  'device.toast.added_to_playlist': 'Zur Playlist hinzugefügt',
+  'device.toast.unmuted': 'Stummschaltung aufgehoben',
+  'device.toast.muted': 'Stummgeschaltet',
+  'device.toast.zone_updated': 'Zone aktualisiert',
+  'device.toast.removed_from_playlist': 'Inhalt aus Playlist entfernt',
+  'device.toast.playlist_reordered': 'Playlist neu sortiert',
+  'device.toast.reboot_sent': 'Neustart-Befehl gesendet',
+  'device.toast.shutdown_sent': 'Herunterfahren-Befehl gesendet',
+  'device.toast.screen_off_sent': 'Befehl Bildschirm aus gesendet',
+  'device.toast.screen_on_sent': 'Befehl Bildschirm an gesendet',
+  'device.toast.launch_sent': 'Start-Befehl gesendet',
+  'device.toast.update_triggered': 'Update-Prüfung ausgelöst',
+  'device.toast.remote_started': 'Fernsteuerungssitzung gestartet',
+
+  // Settings
+  'settings.title': 'Einstellungen',
+  'settings.subtitle': 'Serverkonfiguration und Setup-Informationen',
+  'settings.account': 'Konto',
+  'settings.save_profile': 'Profil speichern',
+  'settings.change_password': 'Passwort ändern',
+  'settings.password_min_8': 'Muss mindestens 8 Zeichen lang sein.',
+  'settings.current_password': 'Aktuelles Passwort',
+  'settings.new_password': 'Neues Passwort',
+  'settings.confirm_new_password': 'Neues Passwort bestätigen',
+  'settings.sso_note': 'Sie melden sich über {provider} an. Verwalten Sie Ihr Passwort dort.',
+  'settings.license': 'Lizenz',
+  'settings.license_mit': 'MIT-Lizenz - alle Funktionen enthalten.',
+  'settings.platform_admin_link': 'Plattform-Admin-Tools sind auf der Seite',
+  'settings.platform_admin_page_suffix': '.',
+  'settings.user_management': 'Benutzerverwaltung',
+  'settings.loading_users': 'Benutzer werden geladen...',
+  'settings.white_label': 'White Label / Branding',
+  'settings.white_label_desc': 'Passen Sie das Erscheinungsbild des Dashboards und Players für Ihre Kunden an.',
+  'settings.brand_name': 'Markenname',
+  'settings.logo_url': 'Logo-URL',
+  'settings.primary_color': 'Primärfarbe',
+  'settings.bg_color': 'Hintergrundfarbe',
+  'settings.custom_domain': 'Benutzerdefinierte Domain',
+  'settings.favicon_url': 'Favicon-URL',
+  'settings.custom_css': 'Benutzerdefiniertes CSS (optional)',
+  'settings.hide_branding': '„ScreenTinker"-Branding ausblenden',
+  'settings.save_branding': 'Branding speichern',
+  'settings.preview': 'Vorschau',
+  'settings.white_label_enterprise_only': 'Benutzerdefiniertes Branding ist im Enterprise-Plan verfügbar',
+  'settings.view_plans': 'Pläne ansehen',
+  'settings.server_info': 'Serverinformationen',
+  'settings.server_url': 'Server-URL',
+  'settings.api_endpoint': 'API-Endpunkt',
+  'settings.server_url_hint': 'Verwenden Sie diese URL beim Einrichten der Android-App',
+  'settings.setup_guide': 'Setup-Anleitung',
+  'settings.setup_step_1': 'Installieren Sie die ScreenTinker APK auf Ihrem TV via Sideloading',
+  'settings.setup_step_2_prefix': 'Öffnen Sie die App und geben Sie diese Server-URL ein:',
+  'settings.setup_step_3': 'Die App zeigt einen 6-stelligen Kopplungscode an',
+  'settings.setup_step_4': 'Klicken Sie auf „Bildschirm hinzufügen" und geben Sie den Code ein',
+  'settings.setup_step_5': 'Inhalte in die Inhaltsbibliothek hochladen',
+  'settings.setup_step_6': 'Inhalte der Playlist des Bildschirms zuweisen',
+  'settings.your_data': 'Ihre Daten',
+  'settings.your_data_desc': 'Exportieren oder importieren Sie Ihre Geräte, Inhalte, Layouts, Zeitpläne und alle Einstellungen. Nutzen Sie dies zur Migration zwischen Cloud und Selfhosted.',
+  'settings.export_my_data': 'Meine Daten exportieren',
+  'settings.include_media_zip': 'Mediendateien einschließen (ZIP)',
+  'settings.import_data': 'Daten importieren',
+  'settings.language': 'Sprache',
+  'settings.about': 'Über',
+  'settings.about_tagline': 'Digital-Signage-Verwaltungssystem.',
+  'settings.third_party_licenses': 'Drittanbieter-Lizenzen',
+  'settings.import.reading_file': 'Datei wird gelesen...',
+  'settings.import.zip_detected': 'ZIP-Export erkannt: <strong>{name}</strong> ({size} MB)<br>Enthält Daten + Mediendateien.',
+  'settings.import.confirm': 'Import bestätigen',
+  'settings.import.invalid_file': 'Ungültige Datei. Muss ein ScreenTinker-Export-JSON oder ZIP sein.',
+  'settings.import.summary_devices': '{n} Geräte',
+  'settings.import.summary_content': '{n} Inhalte',
+  'settings.import.summary_widgets': '{n} Widgets',
+  'settings.import.summary_layouts': '{n} Layouts',
+  'settings.import.summary_schedules': '{n} Zeitpläne',
+  'settings.import.summary_walls': '{n} Videowände',
+  'settings.import.summary_kiosk': '{n} Kioskseiten',
+  'settings.import.found_summary': 'Gefunden: {summary}.<br>Von: {email} (exportiert {date})',
+  'settings.import.empty_export': 'leerer Export',
+  'settings.import.uploading_zip': 'Wird hochgeladen und importiert... Bei großen Dateien kann dies einen Moment dauern.',
+  'settings.import.importing': 'Wird importiert...',
+  'settings.import.complete': 'Import abgeschlossen: {imported}.',
+  'settings.import.pairing_codes_title': 'Geräte-Kopplungscodes:',
+  'settings.import.pairing_codes_hint': 'Geben Sie diese Codes an jedem Gerät ein, um sie neu zu verknüpfen. Zuweisungen und Zeitpläne bleiben erhalten.',
+  'settings.import.failed': 'Import fehlgeschlagen',
+  'settings.import.failed_with_error': 'Import fehlgeschlagen: {error}',
+  'settings.import.read_failed': 'Datei konnte nicht gelesen werden: {error}',
+  'settings.toast.support_token_generated': 'Support-Token erstellt (gültig {hours}h)',
+  'settings.toast.import_success': 'Daten erfolgreich importiert',
+  'settings.toast.name_required': 'Name darf nicht leer sein',
+  'settings.toast.profile_saved': 'Profil gespeichert',
+  'settings.toast.current_password_required': 'Geben Sie Ihr aktuelles Passwort ein',
+  'settings.toast.new_password_min_8': 'Neues Passwort muss mindestens 8 Zeichen lang sein',
+  'settings.toast.passwords_dont_match': 'Neue Passwörter stimmen nicht überein',
+  'settings.toast.password_changed': 'Passwort geändert',
+  'settings.toast.branding_saved': 'Branding gespeichert',
+  'settings.toast.preview_applied': 'Vorschau angewendet (zum Zurücksetzen neu laden)',
+  'settings.toast.plan_updated': 'Plan aktualisiert',
+  'settings.toast.user_removed': 'Benutzer entfernt',
+  'settings.user.col_user': 'Benutzer',
+  'settings.user.col_auth': 'Auth',
+  'settings.user.col_role': 'Rolle',
+  'settings.user.col_plan': 'Plan',
+  'settings.user.col_actions': 'Aktionen',
+  'settings.user.remove': 'Entfernen',
+  'settings.user.you': 'Sie',
+  'settings.user.confirm': 'Bestätigen?',
+  'settings.user.count_one': '1 Benutzer registriert',
+  'settings.user.count_other': '{n} Benutzer registriert',
 };
diff --git a/frontend/js/i18n/en.js b/frontend/js/i18n/en.js
index 3b1a799..dc73d72 100644
--- a/frontend/js/i18n/en.js
+++ b/frontend/js/i18n/en.js
@@ -205,4 +205,266 @@ export default {
   'content.toast.folder_deleted': 'Folder deleted',
   'content.toast.moved': 'Moved',
   'content.toast.moved_to_root': 'Moved to root',
+
+  // Device detail
+  'device.back': 'Back to Displays',
+  'device.owner_label': 'Owner: {owner}',
+  'device.rename': 'Rename',
+  'device.screenshot_btn': 'Screenshot',
+  'device.remove': 'Remove',
+  'device.click_to_confirm': 'Click again to confirm',
+  'device.prompt_new_name': 'Enter new name:',
+  'device.confirm_discard_draft': 'Discard all unpublished changes and revert to the last published version?',
+  'device.failed_load': 'Failed to load device',
+  'device.no_screenshot': 'No screenshot available. Click "Screenshot" to capture one.',
+  'device.no_content_assigned': 'No content assigned',
+  'device.now_playing_id': 'Playing: {id}',
+  'device.playlist_count_one': '1 item in playlist',
+  'device.playlist_count_other': '{n} items in playlist',
+  // Tabs
+  'device.tab.now_playing': 'Now Playing',
+  'device.tab.now_playing_tip': "Live screenshot of what's currently displaying on this device.",
+  'device.tab.playlist': 'Playlist',
+  'device.tab.playlist_tip': 'Content assigned to this device. Drag items to reorder. Add media, widgets, or kiosk pages.',
+  'device.tab.info': 'Device Info',
+  'device.tab.info_tip': 'Hardware telemetry, orientation settings, notes, and device controls.',
+  'device.tab.remote': 'Remote Control',
+  'device.tab.remote_tip': 'View the device screen in real-time and send key presses. Works on Android APK and web player.',
+  // Draft banner
+  'device.draft.banner_title': 'Unpublished changes',
+  'device.draft.devices_showing_published': 'Devices are still showing the last published version.',
+  'device.draft.never_published': 'This playlist has never been published. Devices will show nothing until you publish.',
+  'device.draft.discard': 'Discard',
+  'device.draft.publish': 'Publish',
+  'device.draft.publishing': 'Publishing...',
+  // Layout selector
+  'device.layout.label': 'Screen Layout',
+  'device.layout.fullscreen_default': 'Fullscreen (default)',
+  'device.layout.zones_count': '{name} ({n} zones)',
+  'device.layout.template_zones_count': '[Template] {name} ({n} zones)',
+  'device.layout.apply': 'Apply',
+  // Playlist tab
+  'device.playlist.label': 'Playlist',
+  'device.playlist.no_playlist': 'No playlist',
+  'device.playlist.copy_to_btn': 'Copy To...',
+  'device.playlist.add_content_btn': 'Add Content',
+  'device.playlist.empty_title': 'No content assigned',
+  'device.playlist.empty_desc': "Add content from your library to this display's playlist.",
+  'device.playlist_picker.with_count': '{name} — {n} items',
+  'device.playlist_picker.with_auto': '{name} (auto) — {n} items',
+  // Info cards
+  'device.info.status': 'Status',
+  'device.info.ip_address': 'IP Address',
+  'device.info.battery': 'Battery',
+  'device.info.storage': 'Storage',
+  'device.info.size_free': '{size} free',
+  'device.info.player_type': 'Player Type',
+  'device.info.web_player': 'Web Player',
+  'device.info.wifi': 'WiFi',
+  'device.info.uptime': 'Uptime',
+  'device.info.android_version': 'Android Version',
+  'device.info.app_version': 'App Version',
+  'device.info.screen_resolution': 'Screen Resolution',
+  'device.info.ram': 'RAM',
+  'device.info.cpu_usage': 'CPU Usage',
+  // Uptime timeline
+  'device.timeline.title': 'Uptime Timeline (Last 24 Hours)',
+  'device.timeline.h24_ago': '24h ago',
+  'device.timeline.now': 'Now',
+  'device.timeline.online': 'Online',
+  'device.timeline.offline': 'Offline',
+  'device.timeline.no_data': 'No data',
+  'device.timeline.uptime_pct_tracked': '{pct}% uptime ({n}min tracked)',
+  'device.timeline.uptime_pct_no_data': '{pct}% uptime (no data)',
+  // Form
+  'device.form.orientation_label': 'Orientation / Rotation',
+  'device.form.orientation.landscape': 'Landscape (0°)',
+  'device.form.orientation.portrait': 'Portrait (90° CW)',
+  'device.form.orientation.landscape_flipped': 'Landscape Flipped (180°)',
+  'device.form.orientation.portrait_flipped': 'Portrait Flipped (270° CW)',
+  'device.form.default_content_label': 'Default Content',
+  'device.form.default_content_none': 'None (show "Waiting...")',
+  'device.form.notes_label': 'Notes',
+  'device.form.notes_placeholder': 'Location, setup details, etc.',
+  'device.form.save_settings': 'Save Settings',
+  // Control buttons
+  'device.ctl.reboot_device': 'Reboot Device',
+  'device.ctl.screen_off': 'Screen Off',
+  'device.ctl.screen_on': 'Screen On',
+  'device.ctl.launch_player': 'Launch Player',
+  'device.ctl.force_update': 'Force Update',
+  'device.ctl.shutdown': 'Shutdown',
+  // Remote tab
+  'device.remote.start_prompt': 'Click "Start Remote" to begin',
+  'device.remote.start': 'Start Remote',
+  'device.remote.stop': 'Stop Remote',
+  'device.remote.vol_up': 'Vol +',
+  'device.remote.vol_down': 'Vol -',
+  'device.remote.home': 'Home',
+  'device.remote.back': 'Back',
+  'device.remote.recents': 'Recents',
+  'device.remote.power': 'Power',
+  'device.remote.ok': 'OK',
+  'device.remote.settings': 'Settings',
+  'device.remote.scrn_off': 'Scrn Off',
+  'device.remote.scrn_on': 'Scrn On',
+  'device.remote.enable_system_view': 'Enable System View',
+  'device.remote.system_view_tooltip': 'Prompts the device user to allow full screen capture - enables remote view of home screen, settings, and other apps',
+  'device.remote.system_view_hint': 'Requires one-time approval on device',
+  'device.remote.waiting_for_approval': 'Waiting for device approval...',
+  'device.remote.system_view_enabled': 'System View Enabled',
+  'device.remote.unlocked_hint': 'Navigation and system controls unlocked',
+  // Playlist item
+  'device.pl_item.widget_with_type': 'Widget ({type})',
+  'device.pl_item.youtube': 'YouTube',
+  'device.pl_item.video': 'Video',
+  'device.pl_item.image': 'Image',
+  'device.pl_item.zone_label': 'Zone: {id}',
+  'device.pl_item.no_zone': 'No zone',
+  'device.pl_item.mute': 'Mute',
+  'device.pl_item.unmute': 'Unmute',
+  'device.pl_item.remove': 'Remove',
+  // Copy playlist
+  'device.copy.no_other_devices': 'No other devices to copy to',
+  'device.copy.prompt': 'Copy playlist to which device?\n\n{list}\n\nEnter number:',
+  'device.copy.invalid_selection': 'Invalid selection',
+  'device.copy.toast': 'Copied {n} items to {device}',
+  // Add-content modal
+  'device.assign.empty_all': 'No content, widgets, or kiosk pages yet. Create something first!',
+  'device.assign.modal_title': 'Add to Playlist',
+  'device.assign.zone_label': 'Zone',
+  'device.assign.zone_default': 'Default (fullscreen)',
+  'device.assign.duration_label': 'Display Duration (seconds, for images/widgets)',
+  'device.assign.tab.media': 'Media ({n})',
+  'device.assign.tab.widgets': 'Widgets ({n})',
+  'device.assign.tab.kiosk': 'Kiosk ({n})',
+  'device.assign.no_media': 'No media uploaded yet',
+  'device.assign.no_widgets': 'No widgets created yet.',
+  'device.assign.no_kiosk': 'No kiosk pages yet.',
+  'device.assign.create_one': 'Create one',
+  'device.assign.add_selected': 'Add Selected',
+  'device.assign.select_first': 'Select something first',
+  'device.assign.kiosk_widget_name': 'Kiosk: {name}',
+  // Toasts
+  'device.toast.screenshot_requested': 'Screenshot requested',
+  'device.toast.renamed': 'Display renamed',
+  'device.toast.removing': 'Removing...',
+  'device.toast.removed': 'Display removed',
+  'device.toast.settings_saved': 'Settings saved',
+  'device.toast.published': 'Playlist published — devices updated',
+  'device.toast.draft_discarded': 'Draft changes discarded',
+  'device.toast.playlist_changed': 'Playlist changed',
+  'device.toast.layout_applied': 'Layout applied',
+  'device.toast.switched_to_fullscreen': 'Switched to fullscreen',
+  'device.toast.added_to_playlist': 'Added to playlist',
+  'device.toast.unmuted': 'Unmuted',
+  'device.toast.muted': 'Muted',
+  'device.toast.zone_updated': 'Zone updated',
+  'device.toast.removed_from_playlist': 'Content removed from playlist',
+  'device.toast.playlist_reordered': 'Playlist reordered',
+  'device.toast.reboot_sent': 'Reboot command sent',
+  'device.toast.shutdown_sent': 'Shutdown command sent',
+  'device.toast.screen_off_sent': 'Screen off command sent',
+  'device.toast.screen_on_sent': 'Screen on command sent',
+  'device.toast.launch_sent': 'Launch command sent',
+  'device.toast.update_triggered': 'Update check triggered',
+  'device.toast.remote_started': 'Remote session started',
+
+  // Settings
+  'settings.title': 'Settings',
+  'settings.subtitle': 'Server configuration and setup information',
+  'settings.account': 'Account',
+  'settings.save_profile': 'Save Profile',
+  'settings.change_password': 'Change Password',
+  'settings.password_min_8': 'Must be at least 8 characters.',
+  'settings.current_password': 'Current Password',
+  'settings.new_password': 'New Password',
+  'settings.confirm_new_password': 'Confirm New Password',
+  'settings.sso_note': 'You sign in via {provider}. Manage your password there.',
+  'settings.license': 'License',
+  'settings.license_mit': 'MIT License - all features included.',
+  'settings.platform_admin_link': 'Platform admin tools are in the',
+  'settings.platform_admin_page_suffix': 'page.',
+  'settings.user_management': 'User Management',
+  'settings.loading_users': 'Loading users...',
+  'settings.white_label': 'White Label / Branding',
+  'settings.white_label_desc': 'Customize the look of your dashboard and player for your clients.',
+  'settings.brand_name': 'Brand Name',
+  'settings.logo_url': 'Logo URL',
+  'settings.primary_color': 'Primary Color',
+  'settings.bg_color': 'Background Color',
+  'settings.custom_domain': 'Custom Domain',
+  'settings.favicon_url': 'Favicon URL',
+  'settings.custom_css': 'Custom CSS (optional)',
+  'settings.hide_branding': 'Hide "ScreenTinker" branding',
+  'settings.save_branding': 'Save Branding',
+  'settings.preview': 'Preview',
+  'settings.white_label_enterprise_only': 'Custom branding is available on the Enterprise plan',
+  'settings.view_plans': 'View Plans',
+  'settings.server_info': 'Server Information',
+  'settings.server_url': 'Server URL',
+  'settings.api_endpoint': 'API Endpoint',
+  'settings.server_url_hint': 'Use this URL when setting up the Android app',
+  'settings.setup_guide': 'Setup Guide',
+  'settings.setup_step_1': 'Install the ScreenTinker APK on your TV via sideloading',
+  'settings.setup_step_2_prefix': 'Open the app and enter this server URL:',
+  'settings.setup_step_3': 'The app will display a 6-digit pairing code',
+  'settings.setup_step_4': 'Click "Add Display" on the dashboard and enter the pairing code',
+  'settings.setup_step_5': 'Upload content in the Content Library',
+  'settings.setup_step_6': "Assign content to the display's Playlist",
+  'settings.your_data': 'Your Data',
+  'settings.your_data_desc': 'Export or import your devices, content, layouts, schedules, and all settings. Use this to migrate between cloud and self-hosted instances.',
+  'settings.export_my_data': 'Export My Data',
+  'settings.include_media_zip': 'Include media files (ZIP)',
+  'settings.import_data': 'Import Data',
+  'settings.language': 'Language',
+  'settings.about': 'About',
+  'settings.about_tagline': 'Digital signage management system.',
+  'settings.third_party_licenses': 'Third-Party Licenses',
+  // Import flow
+  'settings.import.reading_file': 'Reading file...',
+  'settings.import.zip_detected': 'ZIP export detected: <strong>{name}</strong> ({size} MB)<br>Contains data + media files.',
+  'settings.import.confirm': 'Confirm Import',
+  'settings.import.invalid_file': 'Invalid file. Must be a ScreenTinker export JSON or ZIP.',
+  'settings.import.summary_devices': '{n} devices',
+  'settings.import.summary_content': '{n} content items',
+  'settings.import.summary_widgets': '{n} widgets',
+  'settings.import.summary_layouts': '{n} layouts',
+  'settings.import.summary_schedules': '{n} schedules',
+  'settings.import.summary_walls': '{n} video walls',
+  'settings.import.summary_kiosk': '{n} kiosk pages',
+  'settings.import.found_summary': 'Found: {summary}.<br>From: {email} (exported {date})',
+  'settings.import.empty_export': 'empty export',
+  'settings.import.uploading_zip': 'Uploading and importing... This may take a moment for large files.',
+  'settings.import.importing': 'Importing...',
+  'settings.import.complete': 'Import complete: {imported}.',
+  'settings.import.pairing_codes_title': 'Device Pairing Codes:',
+  'settings.import.pairing_codes_hint': 'Enter these codes on each device to re-link them. All assignments and schedules will be preserved.',
+  'settings.import.failed': 'Import failed',
+  'settings.import.failed_with_error': 'Import failed: {error}',
+  'settings.import.read_failed': 'Failed to read file: {error}',
+  // Settings toasts
+  'settings.toast.support_token_generated': 'Support token generated (valid {hours}h)',
+  'settings.toast.import_success': 'Data imported successfully',
+  'settings.toast.name_required': 'Name cannot be empty',
+  'settings.toast.profile_saved': 'Profile saved',
+  'settings.toast.current_password_required': 'Enter your current password',
+  'settings.toast.new_password_min_8': 'New password must be at least 8 characters',
+  'settings.toast.passwords_dont_match': 'New passwords do not match',
+  'settings.toast.password_changed': 'Password changed',
+  'settings.toast.branding_saved': 'Branding saved',
+  'settings.toast.preview_applied': 'Preview applied (refresh to reset)',
+  'settings.toast.plan_updated': 'Plan updated',
+  'settings.toast.user_removed': 'User removed',
+  // User management table
+  'settings.user.col_user': 'User',
+  'settings.user.col_auth': 'Auth',
+  'settings.user.col_role': 'Role',
+  'settings.user.col_plan': 'Plan',
+  'settings.user.col_actions': 'Actions',
+  'settings.user.remove': 'Remove',
+  'settings.user.you': 'You',
+  'settings.user.confirm': 'Confirm?',
+  'settings.user.count_one': '1 user registered',
+  'settings.user.count_other': '{n} users registered',
 };
diff --git a/frontend/js/i18n/es.js b/frontend/js/i18n/es.js
index b117b4c..827007e 100644
--- a/frontend/js/i18n/es.js
+++ b/frontend/js/i18n/es.js
@@ -193,4 +193,250 @@ export default {
   'content.toast.folder_deleted': 'Carpeta eliminada',
   'content.toast.moved': 'Movido',
   'content.toast.moved_to_root': 'Movido a la raíz',
+
+  // Device detail
+  'device.back': 'Volver a Pantallas',
+  'device.owner_label': 'Propietario: {owner}',
+  'device.rename': 'Renombrar',
+  'device.screenshot_btn': 'Captura',
+  'device.remove': 'Eliminar',
+  'device.click_to_confirm': 'Haz clic de nuevo para confirmar',
+  'device.prompt_new_name': 'Ingresa el nuevo nombre:',
+  'device.confirm_discard_draft': '¿Descartar todos los cambios no publicados y volver a la última versión publicada?',
+  'device.failed_load': 'Error al cargar el dispositivo',
+  'device.no_screenshot': 'No hay captura disponible. Haz clic en "Captura" para tomar una.',
+  'device.no_content_assigned': 'Sin contenido asignado',
+  'device.now_playing_id': 'Reproduciendo: {id}',
+  'device.playlist_count_one': '1 elemento en la lista',
+  'device.playlist_count_other': '{n} elementos en la lista',
+  'device.tab.now_playing': 'Reproducción actual',
+  'device.tab.now_playing_tip': 'Captura en vivo de lo que se muestra ahora en este dispositivo.',
+  'device.tab.playlist': 'Lista',
+  'device.tab.playlist_tip': 'Contenido asignado a este dispositivo. Arrastra para reordenar. Agrega medios, widgets o páginas de kiosco.',
+  'device.tab.info': 'Información del dispositivo',
+  'device.tab.info_tip': 'Telemetría de hardware, orientación, notas y controles del dispositivo.',
+  'device.tab.remote': 'Control remoto',
+  'device.tab.remote_tip': 'Visualiza la pantalla del dispositivo en tiempo real y envía pulsaciones. Funciona en la APK de Android y el reproductor web.',
+  'device.draft.banner_title': 'Cambios sin publicar',
+  'device.draft.devices_showing_published': 'Los dispositivos siguen mostrando la última versión publicada.',
+  'device.draft.never_published': 'Esta lista nunca se ha publicado. Los dispositivos no mostrarán nada hasta que la publiques.',
+  'device.draft.discard': 'Descartar',
+  'device.draft.publish': 'Publicar',
+  'device.draft.publishing': 'Publicando...',
+  'device.layout.label': 'Diseño de pantalla',
+  'device.layout.fullscreen_default': 'Pantalla completa (predeterminado)',
+  'device.layout.zones_count': '{name} ({n} zonas)',
+  'device.layout.template_zones_count': '[Plantilla] {name} ({n} zonas)',
+  'device.layout.apply': 'Aplicar',
+  'device.playlist.label': 'Lista',
+  'device.playlist.no_playlist': 'Sin lista',
+  'device.playlist.copy_to_btn': 'Copiar a...',
+  'device.playlist.add_content_btn': 'Agregar contenido',
+  'device.playlist.empty_title': 'Sin contenido asignado',
+  'device.playlist.empty_desc': 'Agrega contenido de tu biblioteca a la lista de esta pantalla.',
+  'device.playlist_picker.with_count': '{name} — {n} elementos',
+  'device.playlist_picker.with_auto': '{name} (auto) — {n} elementos',
+  'device.info.status': 'Estado',
+  'device.info.ip_address': 'Dirección IP',
+  'device.info.battery': 'Batería',
+  'device.info.storage': 'Almacenamiento',
+  'device.info.size_free': '{size} libres',
+  'device.info.player_type': 'Tipo de reproductor',
+  'device.info.web_player': 'Reproductor web',
+  'device.info.wifi': 'WiFi',
+  'device.info.uptime': 'Tiempo activo',
+  'device.info.android_version': 'Versión de Android',
+  'device.info.app_version': 'Versión de la app',
+  'device.info.screen_resolution': 'Resolución de pantalla',
+  'device.info.ram': 'RAM',
+  'device.info.cpu_usage': 'Uso de CPU',
+  'device.timeline.title': 'Línea de tiempo (últimas 24 horas)',
+  'device.timeline.h24_ago': 'hace 24h',
+  'device.timeline.now': 'Ahora',
+  'device.timeline.online': 'En línea',
+  'device.timeline.offline': 'Desconectado',
+  'device.timeline.no_data': 'Sin datos',
+  'device.timeline.uptime_pct_tracked': '{pct}% activo ({n}min registrados)',
+  'device.timeline.uptime_pct_no_data': '{pct}% activo (sin datos)',
+  'device.form.orientation_label': 'Orientación / Rotación',
+  'device.form.orientation.landscape': 'Horizontal (0°)',
+  'device.form.orientation.portrait': 'Vertical (90° SR)',
+  'device.form.orientation.landscape_flipped': 'Horizontal invertido (180°)',
+  'device.form.orientation.portrait_flipped': 'Vertical invertido (270° SR)',
+  'device.form.default_content_label': 'Contenido predeterminado',
+  'device.form.default_content_none': 'Ninguno (mostrar "Esperando...")',
+  'device.form.notes_label': 'Notas',
+  'device.form.notes_placeholder': 'Ubicación, detalles de instalación, etc.',
+  'device.form.save_settings': 'Guardar configuración',
+  'device.ctl.reboot_device': 'Reiniciar dispositivo',
+  'device.ctl.screen_off': 'Apagar pantalla',
+  'device.ctl.screen_on': 'Encender pantalla',
+  'device.ctl.launch_player': 'Iniciar reproductor',
+  'device.ctl.force_update': 'Forzar actualización',
+  'device.ctl.shutdown': 'Apagar',
+  'device.remote.start_prompt': 'Haz clic en "Iniciar control remoto" para comenzar',
+  'device.remote.start': 'Iniciar control remoto',
+  'device.remote.stop': 'Detener control remoto',
+  'device.remote.vol_up': 'Vol +',
+  'device.remote.vol_down': 'Vol -',
+  'device.remote.home': 'Inicio',
+  'device.remote.back': 'Atrás',
+  'device.remote.recents': 'Recientes',
+  'device.remote.power': 'Encendido',
+  'device.remote.ok': 'OK',
+  'device.remote.settings': 'Ajustes',
+  'device.remote.scrn_off': 'Pant. off',
+  'device.remote.scrn_on': 'Pant. on',
+  'device.remote.enable_system_view': 'Habilitar vista de sistema',
+  'device.remote.system_view_tooltip': 'Solicita al usuario del dispositivo permitir captura de pantalla completa - habilita ver pantalla de inicio, ajustes y otras apps',
+  'device.remote.system_view_hint': 'Requiere aprobación única en el dispositivo',
+  'device.remote.waiting_for_approval': 'Esperando aprobación del dispositivo...',
+  'device.remote.system_view_enabled': 'Vista de sistema habilitada',
+  'device.remote.unlocked_hint': 'Navegación y controles del sistema desbloqueados',
+  'device.pl_item.widget_with_type': 'Widget ({type})',
+  'device.pl_item.youtube': 'YouTube',
+  'device.pl_item.video': 'Video',
+  'device.pl_item.image': 'Imagen',
+  'device.pl_item.zone_label': 'Zona: {id}',
+  'device.pl_item.no_zone': 'Sin zona',
+  'device.pl_item.mute': 'Silenciar',
+  'device.pl_item.unmute': 'Activar audio',
+  'device.pl_item.remove': 'Eliminar',
+  'device.copy.no_other_devices': 'No hay otros dispositivos a los que copiar',
+  'device.copy.prompt': '¿A qué dispositivo copiar la lista?\n\n{list}\n\nIngresa el número:',
+  'device.copy.invalid_selection': 'Selección no válida',
+  'device.copy.toast': 'Se copiaron {n} elementos a {device}',
+  'device.assign.empty_all': 'Aún no hay contenido, widgets ni páginas de kiosco. ¡Crea algo primero!',
+  'device.assign.modal_title': 'Agregar a la lista',
+  'device.assign.zone_label': 'Zona',
+  'device.assign.zone_default': 'Predeterminada (pantalla completa)',
+  'device.assign.duration_label': 'Duración (segundos, para imágenes/widgets)',
+  'device.assign.tab.media': 'Medios ({n})',
+  'device.assign.tab.widgets': 'Widgets ({n})',
+  'device.assign.tab.kiosk': 'Kiosco ({n})',
+  'device.assign.no_media': 'Aún no se ha subido ningún medio',
+  'device.assign.no_widgets': 'Aún no hay widgets creados.',
+  'device.assign.no_kiosk': 'Aún no hay páginas de kiosco.',
+  'device.assign.create_one': 'Crea uno',
+  'device.assign.add_selected': 'Agregar selección',
+  'device.assign.select_first': 'Primero selecciona algo',
+  'device.assign.kiosk_widget_name': 'Kiosco: {name}',
+  'device.toast.screenshot_requested': 'Captura solicitada',
+  'device.toast.renamed': 'Pantalla renombrada',
+  'device.toast.removing': 'Eliminando...',
+  'device.toast.removed': 'Pantalla eliminada',
+  'device.toast.settings_saved': 'Configuración guardada',
+  'device.toast.published': 'Lista publicada — dispositivos actualizados',
+  'device.toast.draft_discarded': 'Cambios del borrador descartados',
+  'device.toast.playlist_changed': 'Lista cambiada',
+  'device.toast.layout_applied': 'Diseño aplicado',
+  'device.toast.switched_to_fullscreen': 'Cambiado a pantalla completa',
+  'device.toast.added_to_playlist': 'Agregado a la lista',
+  'device.toast.unmuted': 'Audio activado',
+  'device.toast.muted': 'Silenciado',
+  'device.toast.zone_updated': 'Zona actualizada',
+  'device.toast.removed_from_playlist': 'Contenido eliminado de la lista',
+  'device.toast.playlist_reordered': 'Lista reordenada',
+  'device.toast.reboot_sent': 'Comando de reinicio enviado',
+  'device.toast.shutdown_sent': 'Comando de apagado enviado',
+  'device.toast.screen_off_sent': 'Comando para apagar pantalla enviado',
+  'device.toast.screen_on_sent': 'Comando para encender pantalla enviado',
+  'device.toast.launch_sent': 'Comando de inicio enviado',
+  'device.toast.update_triggered': 'Verificación de actualización iniciada',
+  'device.toast.remote_started': 'Sesión de control remoto iniciada',
+
+  // Settings
+  'settings.title': 'Configuración',
+  'settings.subtitle': 'Configuración del servidor e información de instalación',
+  'settings.account': 'Cuenta',
+  'settings.save_profile': 'Guardar perfil',
+  'settings.change_password': 'Cambiar contraseña',
+  'settings.password_min_8': 'Debe tener al menos 8 caracteres.',
+  'settings.current_password': 'Contraseña actual',
+  'settings.new_password': 'Contraseña nueva',
+  'settings.confirm_new_password': 'Confirmar contraseña nueva',
+  'settings.sso_note': 'Inicias sesión con {provider}. Gestiona tu contraseña ahí.',
+  'settings.license': 'Licencia',
+  'settings.license_mit': 'Licencia MIT - todas las funciones incluidas.',
+  'settings.platform_admin_link': 'Las herramientas de administración están en la',
+  'settings.platform_admin_page_suffix': '.',
+  'settings.user_management': 'Gestión de usuarios',
+  'settings.loading_users': 'Cargando usuarios...',
+  'settings.white_label': 'Marca blanca / Branding',
+  'settings.white_label_desc': 'Personaliza la apariencia del panel y el reproductor para tus clientes.',
+  'settings.brand_name': 'Nombre de la marca',
+  'settings.logo_url': 'URL del logotipo',
+  'settings.primary_color': 'Color principal',
+  'settings.bg_color': 'Color de fondo',
+  'settings.custom_domain': 'Dominio personalizado',
+  'settings.favicon_url': 'URL del favicon',
+  'settings.custom_css': 'CSS personalizado (opcional)',
+  'settings.hide_branding': 'Ocultar la marca "ScreenTinker"',
+  'settings.save_branding': 'Guardar branding',
+  'settings.preview': 'Previsualizar',
+  'settings.white_label_enterprise_only': 'El branding personalizado está disponible en el plan Enterprise',
+  'settings.view_plans': 'Ver planes',
+  'settings.server_info': 'Información del servidor',
+  'settings.server_url': 'URL del servidor',
+  'settings.api_endpoint': 'Endpoint de la API',
+  'settings.server_url_hint': 'Usa esta URL al configurar la app de Android',
+  'settings.setup_guide': 'Guía de instalación',
+  'settings.setup_step_1': 'Instala el APK de ScreenTinker en tu TV mediante sideloading',
+  'settings.setup_step_2_prefix': 'Abre la app e ingresa esta URL del servidor:',
+  'settings.setup_step_3': 'La app mostrará un código de vinculación de 6 dígitos',
+  'settings.setup_step_4': 'Haz clic en "Agregar pantalla" en el panel e ingresa el código',
+  'settings.setup_step_5': 'Sube contenido en la Biblioteca de contenido',
+  'settings.setup_step_6': 'Asigna contenido a la lista de la pantalla',
+  'settings.your_data': 'Tus datos',
+  'settings.your_data_desc': 'Exporta o importa tus dispositivos, contenido, diseños, horarios y toda la configuración. Úsalo para migrar entre instancias en la nube y autoalojadas.',
+  'settings.export_my_data': 'Exportar mis datos',
+  'settings.include_media_zip': 'Incluir archivos multimedia (ZIP)',
+  'settings.import_data': 'Importar datos',
+  'settings.language': 'Idioma',
+  'settings.about': 'Acerca de',
+  'settings.about_tagline': 'Sistema de gestión de señalización digital.',
+  'settings.third_party_licenses': 'Licencias de terceros',
+  'settings.import.reading_file': 'Leyendo archivo...',
+  'settings.import.zip_detected': 'Exportación ZIP detectada: <strong>{name}</strong> ({size} MB)<br>Contiene datos + archivos multimedia.',
+  'settings.import.confirm': 'Confirmar importación',
+  'settings.import.invalid_file': 'Archivo no válido. Debe ser un JSON o ZIP de exportación de ScreenTinker.',
+  'settings.import.summary_devices': '{n} dispositivos',
+  'settings.import.summary_content': '{n} elementos de contenido',
+  'settings.import.summary_widgets': '{n} widgets',
+  'settings.import.summary_layouts': '{n} diseños',
+  'settings.import.summary_schedules': '{n} horarios',
+  'settings.import.summary_walls': '{n} muros de video',
+  'settings.import.summary_kiosk': '{n} páginas de kiosco',
+  'settings.import.found_summary': 'Encontrado: {summary}.<br>De: {email} (exportado {date})',
+  'settings.import.empty_export': 'exportación vacía',
+  'settings.import.uploading_zip': 'Subiendo e importando... Esto puede tardar para archivos grandes.',
+  'settings.import.importing': 'Importando...',
+  'settings.import.complete': 'Importación completa: {imported}.',
+  'settings.import.pairing_codes_title': 'Códigos de vinculación:',
+  'settings.import.pairing_codes_hint': 'Ingresa estos códigos en cada dispositivo para volver a vincularlos. Las asignaciones y horarios se conservarán.',
+  'settings.import.failed': 'Error al importar',
+  'settings.import.failed_with_error': 'Error al importar: {error}',
+  'settings.import.read_failed': 'Error al leer el archivo: {error}',
+  'settings.toast.support_token_generated': 'Token de soporte generado (válido {hours}h)',
+  'settings.toast.import_success': 'Datos importados correctamente',
+  'settings.toast.name_required': 'El nombre no puede estar vacío',
+  'settings.toast.profile_saved': 'Perfil guardado',
+  'settings.toast.current_password_required': 'Ingresa tu contraseña actual',
+  'settings.toast.new_password_min_8': 'La nueva contraseña debe tener al menos 8 caracteres',
+  'settings.toast.passwords_dont_match': 'Las nuevas contraseñas no coinciden',
+  'settings.toast.password_changed': 'Contraseña cambiada',
+  'settings.toast.branding_saved': 'Branding guardado',
+  'settings.toast.preview_applied': 'Previsualización aplicada (recarga para restablecer)',
+  'settings.toast.plan_updated': 'Plan actualizado',
+  'settings.toast.user_removed': 'Usuario eliminado',
+  'settings.user.col_user': 'Usuario',
+  'settings.user.col_auth': 'Auth',
+  'settings.user.col_role': 'Rol',
+  'settings.user.col_plan': 'Plan',
+  'settings.user.col_actions': 'Acciones',
+  'settings.user.remove': 'Eliminar',
+  'settings.user.you': 'Tú',
+  'settings.user.confirm': '¿Confirmar?',
+  'settings.user.count_one': '1 usuario registrado',
+  'settings.user.count_other': '{n} usuarios registrados',
 };
diff --git a/frontend/js/i18n/fr.js b/frontend/js/i18n/fr.js
index ed24b1b..556a2ac 100644
--- a/frontend/js/i18n/fr.js
+++ b/frontend/js/i18n/fr.js
@@ -194,4 +194,250 @@ export default {
   'content.toast.folder_deleted': 'Dossier supprimé',
   'content.toast.moved': 'Déplacé',
   'content.toast.moved_to_root': 'Déplacé à la racine',
+
+  // Device detail
+  'device.back': 'Retour aux écrans',
+  'device.owner_label': 'Propriétaire : {owner}',
+  'device.rename': 'Renommer',
+  'device.screenshot_btn': 'Capture',
+  'device.remove': 'Retirer',
+  'device.click_to_confirm': 'Cliquez à nouveau pour confirmer',
+  'device.prompt_new_name': 'Saisissez le nouveau nom :',
+  'device.confirm_discard_draft': 'Annuler toutes les modifications non publiées et revenir à la dernière version publiée ?',
+  'device.failed_load': 'Échec du chargement de l\'appareil',
+  'device.no_screenshot': 'Aucune capture disponible. Cliquez sur « Capture » pour en prendre une.',
+  'device.no_content_assigned': 'Aucun contenu attribué',
+  'device.now_playing_id': 'En lecture : {id}',
+  'device.playlist_count_one': '1 élément dans la liste',
+  'device.playlist_count_other': '{n} éléments dans la liste',
+  'device.tab.now_playing': 'En cours de lecture',
+  'device.tab.now_playing_tip': 'Capture en direct de ce qui s\'affiche sur cet appareil.',
+  'device.tab.playlist': 'Liste de lecture',
+  'device.tab.playlist_tip': 'Contenu attribué à cet appareil. Glissez pour réorganiser. Ajoutez des médias, widgets ou pages kiosque.',
+  'device.tab.info': 'Infos appareil',
+  'device.tab.info_tip': 'Télémétrie matérielle, orientation, notes et contrôles de l\'appareil.',
+  'device.tab.remote': 'Contrôle à distance',
+  'device.tab.remote_tip': 'Visualisez l\'écran en temps réel et envoyez des touches. Fonctionne sur l\'APK Android et le lecteur web.',
+  'device.draft.banner_title': 'Modifications non publiées',
+  'device.draft.devices_showing_published': 'Les appareils affichent encore la dernière version publiée.',
+  'device.draft.never_published': 'Cette liste n\'a jamais été publiée. Les appareils n\'afficheront rien jusqu\'à publication.',
+  'device.draft.discard': 'Annuler',
+  'device.draft.publish': 'Publier',
+  'device.draft.publishing': 'Publication...',
+  'device.layout.label': 'Mise en page',
+  'device.layout.fullscreen_default': 'Plein écran (par défaut)',
+  'device.layout.zones_count': '{name} ({n} zones)',
+  'device.layout.template_zones_count': '[Modèle] {name} ({n} zones)',
+  'device.layout.apply': 'Appliquer',
+  'device.playlist.label': 'Liste de lecture',
+  'device.playlist.no_playlist': 'Aucune liste',
+  'device.playlist.copy_to_btn': 'Copier vers...',
+  'device.playlist.add_content_btn': 'Ajouter du contenu',
+  'device.playlist.empty_title': 'Aucun contenu attribué',
+  'device.playlist.empty_desc': 'Ajoutez du contenu de votre bibliothèque à la liste de cet écran.',
+  'device.playlist_picker.with_count': '{name} — {n} éléments',
+  'device.playlist_picker.with_auto': '{name} (auto) — {n} éléments',
+  'device.info.status': 'Statut',
+  'device.info.ip_address': 'Adresse IP',
+  'device.info.battery': 'Batterie',
+  'device.info.storage': 'Stockage',
+  'device.info.size_free': '{size} libres',
+  'device.info.player_type': 'Type de lecteur',
+  'device.info.web_player': 'Lecteur web',
+  'device.info.wifi': 'WiFi',
+  'device.info.uptime': 'Disponibilité',
+  'device.info.android_version': 'Version d\'Android',
+  'device.info.app_version': 'Version de l\'app',
+  'device.info.screen_resolution': 'Résolution',
+  'device.info.ram': 'RAM',
+  'device.info.cpu_usage': 'Utilisation CPU',
+  'device.timeline.title': 'Disponibilité (24 dernières heures)',
+  'device.timeline.h24_ago': 'il y a 24h',
+  'device.timeline.now': 'Maintenant',
+  'device.timeline.online': 'En ligne',
+  'device.timeline.offline': 'Hors ligne',
+  'device.timeline.no_data': 'Aucune donnée',
+  'device.timeline.uptime_pct_tracked': '{pct}% disponible ({n}min suivies)',
+  'device.timeline.uptime_pct_no_data': '{pct}% disponible (aucune donnée)',
+  'device.form.orientation_label': 'Orientation / Rotation',
+  'device.form.orientation.landscape': 'Paysage (0°)',
+  'device.form.orientation.portrait': 'Portrait (90° SH)',
+  'device.form.orientation.landscape_flipped': 'Paysage retourné (180°)',
+  'device.form.orientation.portrait_flipped': 'Portrait retourné (270° SH)',
+  'device.form.default_content_label': 'Contenu par défaut',
+  'device.form.default_content_none': 'Aucun (afficher « En attente... »)',
+  'device.form.notes_label': 'Notes',
+  'device.form.notes_placeholder': 'Emplacement, détails d\'installation, etc.',
+  'device.form.save_settings': 'Enregistrer les paramètres',
+  'device.ctl.reboot_device': 'Redémarrer l\'appareil',
+  'device.ctl.screen_off': 'Éteindre l\'écran',
+  'device.ctl.screen_on': 'Allumer l\'écran',
+  'device.ctl.launch_player': 'Lancer le lecteur',
+  'device.ctl.force_update': 'Forcer la mise à jour',
+  'device.ctl.shutdown': 'Arrêter',
+  'device.remote.start_prompt': 'Cliquez sur « Démarrer » pour commencer',
+  'device.remote.start': 'Démarrer',
+  'device.remote.stop': 'Arrêter',
+  'device.remote.vol_up': 'Vol +',
+  'device.remote.vol_down': 'Vol -',
+  'device.remote.home': 'Accueil',
+  'device.remote.back': 'Retour',
+  'device.remote.recents': 'Récents',
+  'device.remote.power': 'Marche',
+  'device.remote.ok': 'OK',
+  'device.remote.settings': 'Paramètres',
+  'device.remote.scrn_off': 'Écr. off',
+  'device.remote.scrn_on': 'Écr. on',
+  'device.remote.enable_system_view': 'Activer la vue système',
+  'device.remote.system_view_tooltip': 'Demande à l\'utilisateur d\'autoriser la capture plein écran - permet de voir l\'écran d\'accueil, les paramètres et d\'autres apps',
+  'device.remote.system_view_hint': 'Approbation unique requise sur l\'appareil',
+  'device.remote.waiting_for_approval': 'Attente de l\'approbation de l\'appareil...',
+  'device.remote.system_view_enabled': 'Vue système activée',
+  'device.remote.unlocked_hint': 'Navigation et contrôles système débloqués',
+  'device.pl_item.widget_with_type': 'Widget ({type})',
+  'device.pl_item.youtube': 'YouTube',
+  'device.pl_item.video': 'Vidéo',
+  'device.pl_item.image': 'Image',
+  'device.pl_item.zone_label': 'Zone : {id}',
+  'device.pl_item.no_zone': 'Aucune zone',
+  'device.pl_item.mute': 'Muet',
+  'device.pl_item.unmute': 'Réactiver le son',
+  'device.pl_item.remove': 'Retirer',
+  'device.copy.no_other_devices': 'Aucun autre appareil vers lequel copier',
+  'device.copy.prompt': 'Copier la liste vers quel appareil ?\n\n{list}\n\nSaisissez le numéro :',
+  'device.copy.invalid_selection': 'Sélection invalide',
+  'device.copy.toast': '{n} éléments copiés vers {device}',
+  'device.assign.empty_all': 'Pas encore de contenu, widgets ou pages kiosque. Créez-en un d\'abord !',
+  'device.assign.modal_title': 'Ajouter à la liste',
+  'device.assign.zone_label': 'Zone',
+  'device.assign.zone_default': 'Par défaut (plein écran)',
+  'device.assign.duration_label': 'Durée (secondes, pour images/widgets)',
+  'device.assign.tab.media': 'Médias ({n})',
+  'device.assign.tab.widgets': 'Widgets ({n})',
+  'device.assign.tab.kiosk': 'Kiosque ({n})',
+  'device.assign.no_media': 'Aucun média téléversé',
+  'device.assign.no_widgets': 'Aucun widget créé.',
+  'device.assign.no_kiosk': 'Aucune page kiosque.',
+  'device.assign.create_one': 'Créez-en un',
+  'device.assign.add_selected': 'Ajouter la sélection',
+  'device.assign.select_first': 'Sélectionnez d\'abord un élément',
+  'device.assign.kiosk_widget_name': 'Kiosque : {name}',
+  'device.toast.screenshot_requested': 'Capture demandée',
+  'device.toast.renamed': 'Écran renommé',
+  'device.toast.removing': 'Suppression...',
+  'device.toast.removed': 'Écran retiré',
+  'device.toast.settings_saved': 'Paramètres enregistrés',
+  'device.toast.published': 'Liste publiée — appareils mis à jour',
+  'device.toast.draft_discarded': 'Modifications du brouillon annulées',
+  'device.toast.playlist_changed': 'Liste modifiée',
+  'device.toast.layout_applied': 'Mise en page appliquée',
+  'device.toast.switched_to_fullscreen': 'Passé en plein écran',
+  'device.toast.added_to_playlist': 'Ajouté à la liste',
+  'device.toast.unmuted': 'Son réactivé',
+  'device.toast.muted': 'Son coupé',
+  'device.toast.zone_updated': 'Zone mise à jour',
+  'device.toast.removed_from_playlist': 'Contenu retiré de la liste',
+  'device.toast.playlist_reordered': 'Liste réorganisée',
+  'device.toast.reboot_sent': 'Commande de redémarrage envoyée',
+  'device.toast.shutdown_sent': 'Commande d\'arrêt envoyée',
+  'device.toast.screen_off_sent': 'Commande d\'extinction de l\'écran envoyée',
+  'device.toast.screen_on_sent': 'Commande d\'allumage de l\'écran envoyée',
+  'device.toast.launch_sent': 'Commande de lancement envoyée',
+  'device.toast.update_triggered': 'Vérification de mise à jour déclenchée',
+  'device.toast.remote_started': 'Session de contrôle à distance démarrée',
+
+  // Settings
+  'settings.title': 'Paramètres',
+  'settings.subtitle': 'Configuration du serveur et informations d\'installation',
+  'settings.account': 'Compte',
+  'settings.save_profile': 'Enregistrer le profil',
+  'settings.change_password': 'Changer le mot de passe',
+  'settings.password_min_8': 'Doit contenir au moins 8 caractères.',
+  'settings.current_password': 'Mot de passe actuel',
+  'settings.new_password': 'Nouveau mot de passe',
+  'settings.confirm_new_password': 'Confirmer le nouveau mot de passe',
+  'settings.sso_note': 'Vous vous connectez via {provider}. Gérez votre mot de passe là-bas.',
+  'settings.license': 'Licence',
+  'settings.license_mit': 'Licence MIT - toutes les fonctionnalités incluses.',
+  'settings.platform_admin_link': 'Les outils d\'administration sont sur la page',
+  'settings.platform_admin_page_suffix': '.',
+  'settings.user_management': 'Gestion des utilisateurs',
+  'settings.loading_users': 'Chargement des utilisateurs...',
+  'settings.white_label': 'Marque blanche / Branding',
+  'settings.white_label_desc': 'Personnalisez l\'apparence du tableau de bord et du lecteur pour vos clients.',
+  'settings.brand_name': 'Nom de la marque',
+  'settings.logo_url': 'URL du logo',
+  'settings.primary_color': 'Couleur principale',
+  'settings.bg_color': 'Couleur de fond',
+  'settings.custom_domain': 'Domaine personnalisé',
+  'settings.favicon_url': 'URL du favicon',
+  'settings.custom_css': 'CSS personnalisé (facultatif)',
+  'settings.hide_branding': 'Masquer la marque « ScreenTinker »',
+  'settings.save_branding': 'Enregistrer le branding',
+  'settings.preview': 'Aperçu',
+  'settings.white_label_enterprise_only': 'Le branding personnalisé est disponible sur le plan Enterprise',
+  'settings.view_plans': 'Voir les plans',
+  'settings.server_info': 'Informations du serveur',
+  'settings.server_url': 'URL du serveur',
+  'settings.api_endpoint': 'Point de terminaison API',
+  'settings.server_url_hint': 'Utilisez cette URL pour configurer l\'app Android',
+  'settings.setup_guide': 'Guide d\'installation',
+  'settings.setup_step_1': 'Installez l\'APK ScreenTinker sur votre TV via le sideloading',
+  'settings.setup_step_2_prefix': 'Ouvrez l\'app et saisissez cette URL du serveur :',
+  'settings.setup_step_3': 'L\'app affichera un code d\'appairage à 6 chiffres',
+  'settings.setup_step_4': 'Cliquez sur « Ajouter un écran » et saisissez le code',
+  'settings.setup_step_5': 'Téléversez du contenu dans la Bibliothèque',
+  'settings.setup_step_6': 'Attribuez du contenu à la liste de l\'écran',
+  'settings.your_data': 'Vos données',
+  'settings.your_data_desc': 'Exportez ou importez vos appareils, contenu, mises en page, calendriers et tous les paramètres. Utilisez cela pour migrer entre cloud et auto-hébergé.',
+  'settings.export_my_data': 'Exporter mes données',
+  'settings.include_media_zip': 'Inclure les fichiers médias (ZIP)',
+  'settings.import_data': 'Importer des données',
+  'settings.language': 'Langue',
+  'settings.about': 'À propos',
+  'settings.about_tagline': 'Système de gestion d\'affichage dynamique.',
+  'settings.third_party_licenses': 'Licences tierces',
+  'settings.import.reading_file': 'Lecture du fichier...',
+  'settings.import.zip_detected': 'Export ZIP détecté : <strong>{name}</strong> ({size} Mo)<br>Contient données + fichiers médias.',
+  'settings.import.confirm': 'Confirmer l\'import',
+  'settings.import.invalid_file': 'Fichier invalide. Doit être un JSON ou ZIP d\'export ScreenTinker.',
+  'settings.import.summary_devices': '{n} appareils',
+  'settings.import.summary_content': '{n} contenus',
+  'settings.import.summary_widgets': '{n} widgets',
+  'settings.import.summary_layouts': '{n} mises en page',
+  'settings.import.summary_schedules': '{n} calendriers',
+  'settings.import.summary_walls': '{n} murs vidéo',
+  'settings.import.summary_kiosk': '{n} pages kiosque',
+  'settings.import.found_summary': 'Trouvé : {summary}.<br>De : {email} (exporté {date})',
+  'settings.import.empty_export': 'export vide',
+  'settings.import.uploading_zip': 'Téléversement et import... Cela peut prendre du temps pour les gros fichiers.',
+  'settings.import.importing': 'Import...',
+  'settings.import.complete': 'Import terminé : {imported}.',
+  'settings.import.pairing_codes_title': 'Codes d\'appairage :',
+  'settings.import.pairing_codes_hint': 'Saisissez ces codes sur chaque appareil pour les relier. Les attributions et calendriers seront préservés.',
+  'settings.import.failed': 'Échec de l\'import',
+  'settings.import.failed_with_error': 'Échec de l\'import : {error}',
+  'settings.import.read_failed': 'Échec de lecture du fichier : {error}',
+  'settings.toast.support_token_generated': 'Jeton de support généré (valide {hours}h)',
+  'settings.toast.import_success': 'Données importées avec succès',
+  'settings.toast.name_required': 'Le nom ne peut pas être vide',
+  'settings.toast.profile_saved': 'Profil enregistré',
+  'settings.toast.current_password_required': 'Saisissez votre mot de passe actuel',
+  'settings.toast.new_password_min_8': 'Le nouveau mot de passe doit comporter au moins 8 caractères',
+  'settings.toast.passwords_dont_match': 'Les nouveaux mots de passe ne correspondent pas',
+  'settings.toast.password_changed': 'Mot de passe changé',
+  'settings.toast.branding_saved': 'Branding enregistré',
+  'settings.toast.preview_applied': 'Aperçu appliqué (rechargez pour réinitialiser)',
+  'settings.toast.plan_updated': 'Plan mis à jour',
+  'settings.toast.user_removed': 'Utilisateur retiré',
+  'settings.user.col_user': 'Utilisateur',
+  'settings.user.col_auth': 'Auth',
+  'settings.user.col_role': 'Rôle',
+  'settings.user.col_plan': 'Plan',
+  'settings.user.col_actions': 'Actions',
+  'settings.user.remove': 'Retirer',
+  'settings.user.you': 'Vous',
+  'settings.user.confirm': 'Confirmer ?',
+  'settings.user.count_one': '1 utilisateur inscrit',
+  'settings.user.count_other': '{n} utilisateurs inscrits',
 };
diff --git a/frontend/js/i18n/pt.js b/frontend/js/i18n/pt.js
index efcdc58..623d612 100644
--- a/frontend/js/i18n/pt.js
+++ b/frontend/js/i18n/pt.js
@@ -194,4 +194,250 @@ export default {
   'content.toast.folder_deleted': 'Pasta excluída',
   'content.toast.moved': 'Movido',
   'content.toast.moved_to_root': 'Movido para a raiz',
+
+  // Device detail
+  'device.back': 'Voltar para Telas',
+  'device.owner_label': 'Proprietário: {owner}',
+  'device.rename': 'Renomear',
+  'device.screenshot_btn': 'Captura',
+  'device.remove': 'Remover',
+  'device.click_to_confirm': 'Clique novamente para confirmar',
+  'device.prompt_new_name': 'Digite o novo nome:',
+  'device.confirm_discard_draft': 'Descartar todas as alterações não publicadas e voltar à última versão publicada?',
+  'device.failed_load': 'Falha ao carregar o dispositivo',
+  'device.no_screenshot': 'Sem captura disponível. Clique em "Captura" para tirar uma.',
+  'device.no_content_assigned': 'Sem conteúdo atribuído',
+  'device.now_playing_id': 'Reproduzindo: {id}',
+  'device.playlist_count_one': '1 item na playlist',
+  'device.playlist_count_other': '{n} itens na playlist',
+  'device.tab.now_playing': 'Reproduzindo agora',
+  'device.tab.now_playing_tip': 'Captura ao vivo do que está sendo exibido neste dispositivo.',
+  'device.tab.playlist': 'Playlist',
+  'device.tab.playlist_tip': 'Conteúdo atribuído a este dispositivo. Arraste para reordenar. Adicione mídia, widgets ou páginas de quiosque.',
+  'device.tab.info': 'Informações do dispositivo',
+  'device.tab.info_tip': 'Telemetria de hardware, orientação, notas e controles do dispositivo.',
+  'device.tab.remote': 'Controle remoto',
+  'device.tab.remote_tip': 'Visualize a tela em tempo real e envie pressionamentos de tecla. Funciona no APK do Android e no player web.',
+  'device.draft.banner_title': 'Alterações não publicadas',
+  'device.draft.devices_showing_published': 'Os dispositivos ainda exibem a última versão publicada.',
+  'device.draft.never_published': 'Esta playlist nunca foi publicada. Os dispositivos não exibirão nada até você publicar.',
+  'device.draft.discard': 'Descartar',
+  'device.draft.publish': 'Publicar',
+  'device.draft.publishing': 'Publicando...',
+  'device.layout.label': 'Layout da tela',
+  'device.layout.fullscreen_default': 'Tela cheia (padrão)',
+  'device.layout.zones_count': '{name} ({n} zonas)',
+  'device.layout.template_zones_count': '[Modelo] {name} ({n} zonas)',
+  'device.layout.apply': 'Aplicar',
+  'device.playlist.label': 'Playlist',
+  'device.playlist.no_playlist': 'Sem playlist',
+  'device.playlist.copy_to_btn': 'Copiar para...',
+  'device.playlist.add_content_btn': 'Adicionar conteúdo',
+  'device.playlist.empty_title': 'Sem conteúdo atribuído',
+  'device.playlist.empty_desc': 'Adicione conteúdo da sua biblioteca à playlist desta tela.',
+  'device.playlist_picker.with_count': '{name} — {n} itens',
+  'device.playlist_picker.with_auto': '{name} (auto) — {n} itens',
+  'device.info.status': 'Status',
+  'device.info.ip_address': 'Endereço IP',
+  'device.info.battery': 'Bateria',
+  'device.info.storage': 'Armazenamento',
+  'device.info.size_free': '{size} livres',
+  'device.info.player_type': 'Tipo de player',
+  'device.info.web_player': 'Player web',
+  'device.info.wifi': 'Wi-Fi',
+  'device.info.uptime': 'Tempo ativo',
+  'device.info.android_version': 'Versão do Android',
+  'device.info.app_version': 'Versão do app',
+  'device.info.screen_resolution': 'Resolução',
+  'device.info.ram': 'RAM',
+  'device.info.cpu_usage': 'Uso de CPU',
+  'device.timeline.title': 'Linha do tempo (últimas 24 horas)',
+  'device.timeline.h24_ago': 'há 24h',
+  'device.timeline.now': 'Agora',
+  'device.timeline.online': 'Online',
+  'device.timeline.offline': 'Offline',
+  'device.timeline.no_data': 'Sem dados',
+  'device.timeline.uptime_pct_tracked': '{pct}% ativo ({n}min monitorados)',
+  'device.timeline.uptime_pct_no_data': '{pct}% ativo (sem dados)',
+  'device.form.orientation_label': 'Orientação / Rotação',
+  'device.form.orientation.landscape': 'Paisagem (0°)',
+  'device.form.orientation.portrait': 'Retrato (90° SH)',
+  'device.form.orientation.landscape_flipped': 'Paisagem invertida (180°)',
+  'device.form.orientation.portrait_flipped': 'Retrato invertido (270° SH)',
+  'device.form.default_content_label': 'Conteúdo padrão',
+  'device.form.default_content_none': 'Nenhum (mostrar "Aguardando...")',
+  'device.form.notes_label': 'Notas',
+  'device.form.notes_placeholder': 'Localização, detalhes de instalação, etc.',
+  'device.form.save_settings': 'Salvar configurações',
+  'device.ctl.reboot_device': 'Reiniciar dispositivo',
+  'device.ctl.screen_off': 'Desligar tela',
+  'device.ctl.screen_on': 'Ligar tela',
+  'device.ctl.launch_player': 'Iniciar player',
+  'device.ctl.force_update': 'Forçar atualização',
+  'device.ctl.shutdown': 'Desligar',
+  'device.remote.start_prompt': 'Clique em "Iniciar controle remoto" para começar',
+  'device.remote.start': 'Iniciar controle remoto',
+  'device.remote.stop': 'Parar controle remoto',
+  'device.remote.vol_up': 'Vol +',
+  'device.remote.vol_down': 'Vol -',
+  'device.remote.home': 'Início',
+  'device.remote.back': 'Voltar',
+  'device.remote.recents': 'Recentes',
+  'device.remote.power': 'Energia',
+  'device.remote.ok': 'OK',
+  'device.remote.settings': 'Configurações',
+  'device.remote.scrn_off': 'Tela off',
+  'device.remote.scrn_on': 'Tela on',
+  'device.remote.enable_system_view': 'Ativar visão do sistema',
+  'device.remote.system_view_tooltip': 'Solicita ao usuário do dispositivo permitir captura de tela cheia - habilita visualização remota da tela inicial, configurações e outros apps',
+  'device.remote.system_view_hint': 'Aprovação única necessária no dispositivo',
+  'device.remote.waiting_for_approval': 'Aguardando aprovação do dispositivo...',
+  'device.remote.system_view_enabled': 'Visão do sistema ativada',
+  'device.remote.unlocked_hint': 'Navegação e controles do sistema desbloqueados',
+  'device.pl_item.widget_with_type': 'Widget ({type})',
+  'device.pl_item.youtube': 'YouTube',
+  'device.pl_item.video': 'Vídeo',
+  'device.pl_item.image': 'Imagem',
+  'device.pl_item.zone_label': 'Zona: {id}',
+  'device.pl_item.no_zone': 'Sem zona',
+  'device.pl_item.mute': 'Silenciar',
+  'device.pl_item.unmute': 'Ativar áudio',
+  'device.pl_item.remove': 'Remover',
+  'device.copy.no_other_devices': 'Não há outros dispositivos para copiar',
+  'device.copy.prompt': 'Copiar playlist para qual dispositivo?\n\n{list}\n\nDigite o número:',
+  'device.copy.invalid_selection': 'Seleção inválida',
+  'device.copy.toast': '{n} itens copiados para {device}',
+  'device.assign.empty_all': 'Ainda não há conteúdo, widgets ou páginas de quiosque. Crie algo primeiro!',
+  'device.assign.modal_title': 'Adicionar à playlist',
+  'device.assign.zone_label': 'Zona',
+  'device.assign.zone_default': 'Padrão (tela cheia)',
+  'device.assign.duration_label': 'Duração (segundos, para imagens/widgets)',
+  'device.assign.tab.media': 'Mídia ({n})',
+  'device.assign.tab.widgets': 'Widgets ({n})',
+  'device.assign.tab.kiosk': 'Quiosque ({n})',
+  'device.assign.no_media': 'Nenhuma mídia enviada ainda',
+  'device.assign.no_widgets': 'Nenhum widget criado ainda.',
+  'device.assign.no_kiosk': 'Nenhuma página de quiosque ainda.',
+  'device.assign.create_one': 'Crie um',
+  'device.assign.add_selected': 'Adicionar selecionados',
+  'device.assign.select_first': 'Selecione algo primeiro',
+  'device.assign.kiosk_widget_name': 'Quiosque: {name}',
+  'device.toast.screenshot_requested': 'Captura solicitada',
+  'device.toast.renamed': 'Tela renomeada',
+  'device.toast.removing': 'Removendo...',
+  'device.toast.removed': 'Tela removida',
+  'device.toast.settings_saved': 'Configurações salvas',
+  'device.toast.published': 'Playlist publicada — dispositivos atualizados',
+  'device.toast.draft_discarded': 'Alterações do rascunho descartadas',
+  'device.toast.playlist_changed': 'Playlist alterada',
+  'device.toast.layout_applied': 'Layout aplicado',
+  'device.toast.switched_to_fullscreen': 'Alterado para tela cheia',
+  'device.toast.added_to_playlist': 'Adicionado à playlist',
+  'device.toast.unmuted': 'Áudio ativado',
+  'device.toast.muted': 'Silenciado',
+  'device.toast.zone_updated': 'Zona atualizada',
+  'device.toast.removed_from_playlist': 'Conteúdo removido da playlist',
+  'device.toast.playlist_reordered': 'Playlist reordenada',
+  'device.toast.reboot_sent': 'Comando de reinício enviado',
+  'device.toast.shutdown_sent': 'Comando de desligamento enviado',
+  'device.toast.screen_off_sent': 'Comando para desligar tela enviado',
+  'device.toast.screen_on_sent': 'Comando para ligar tela enviado',
+  'device.toast.launch_sent': 'Comando de início enviado',
+  'device.toast.update_triggered': 'Verificação de atualização disparada',
+  'device.toast.remote_started': 'Sessão de controle remoto iniciada',
+
+  // Settings
+  'settings.title': 'Configurações',
+  'settings.subtitle': 'Configuração do servidor e informações de instalação',
+  'settings.account': 'Conta',
+  'settings.save_profile': 'Salvar perfil',
+  'settings.change_password': 'Alterar senha',
+  'settings.password_min_8': 'Deve ter no mínimo 8 caracteres.',
+  'settings.current_password': 'Senha atual',
+  'settings.new_password': 'Nova senha',
+  'settings.confirm_new_password': 'Confirmar nova senha',
+  'settings.sso_note': 'Você entra via {provider}. Gerencie sua senha lá.',
+  'settings.license': 'Licença',
+  'settings.license_mit': 'Licença MIT - todos os recursos incluídos.',
+  'settings.platform_admin_link': 'As ferramentas de admin da plataforma estão na página',
+  'settings.platform_admin_page_suffix': '.',
+  'settings.user_management': 'Gestão de usuários',
+  'settings.loading_users': 'Carregando usuários...',
+  'settings.white_label': 'Marca branca / Branding',
+  'settings.white_label_desc': 'Personalize a aparência do painel e do player para seus clientes.',
+  'settings.brand_name': 'Nome da marca',
+  'settings.logo_url': 'URL do logotipo',
+  'settings.primary_color': 'Cor primária',
+  'settings.bg_color': 'Cor de fundo',
+  'settings.custom_domain': 'Domínio personalizado',
+  'settings.favicon_url': 'URL do favicon',
+  'settings.custom_css': 'CSS personalizado (opcional)',
+  'settings.hide_branding': 'Ocultar marca "ScreenTinker"',
+  'settings.save_branding': 'Salvar branding',
+  'settings.preview': 'Pré-visualizar',
+  'settings.white_label_enterprise_only': 'Branding personalizado disponível no plano Enterprise',
+  'settings.view_plans': 'Ver planos',
+  'settings.server_info': 'Informações do servidor',
+  'settings.server_url': 'URL do servidor',
+  'settings.api_endpoint': 'Endpoint da API',
+  'settings.server_url_hint': 'Use esta URL ao configurar o app Android',
+  'settings.setup_guide': 'Guia de instalação',
+  'settings.setup_step_1': 'Instale o APK do ScreenTinker na sua TV via sideloading',
+  'settings.setup_step_2_prefix': 'Abra o app e digite esta URL do servidor:',
+  'settings.setup_step_3': 'O app exibirá um código de pareamento de 6 dígitos',
+  'settings.setup_step_4': 'Clique em "Adicionar tela" no painel e digite o código',
+  'settings.setup_step_5': 'Envie conteúdo na Biblioteca de conteúdo',
+  'settings.setup_step_6': 'Atribua conteúdo à playlist da tela',
+  'settings.your_data': 'Seus dados',
+  'settings.your_data_desc': 'Exporte ou importe seus dispositivos, conteúdo, layouts, agendas e todas as configurações. Use para migrar entre nuvem e auto-hospedado.',
+  'settings.export_my_data': 'Exportar meus dados',
+  'settings.include_media_zip': 'Incluir arquivos de mídia (ZIP)',
+  'settings.import_data': 'Importar dados',
+  'settings.language': 'Idioma',
+  'settings.about': 'Sobre',
+  'settings.about_tagline': 'Sistema de gerenciamento de sinalização digital.',
+  'settings.third_party_licenses': 'Licenças de terceiros',
+  'settings.import.reading_file': 'Lendo arquivo...',
+  'settings.import.zip_detected': 'Exportação ZIP detectada: <strong>{name}</strong> ({size} MB)<br>Contém dados + arquivos de mídia.',
+  'settings.import.confirm': 'Confirmar importação',
+  'settings.import.invalid_file': 'Arquivo inválido. Deve ser JSON ou ZIP de exportação do ScreenTinker.',
+  'settings.import.summary_devices': '{n} dispositivos',
+  'settings.import.summary_content': '{n} itens de conteúdo',
+  'settings.import.summary_widgets': '{n} widgets',
+  'settings.import.summary_layouts': '{n} layouts',
+  'settings.import.summary_schedules': '{n} agendas',
+  'settings.import.summary_walls': '{n} paredes de vídeo',
+  'settings.import.summary_kiosk': '{n} páginas de quiosque',
+  'settings.import.found_summary': 'Encontrado: {summary}.<br>De: {email} (exportado {date})',
+  'settings.import.empty_export': 'exportação vazia',
+  'settings.import.uploading_zip': 'Enviando e importando... Pode demorar para arquivos grandes.',
+  'settings.import.importing': 'Importando...',
+  'settings.import.complete': 'Importação concluída: {imported}.',
+  'settings.import.pairing_codes_title': 'Códigos de pareamento:',
+  'settings.import.pairing_codes_hint': 'Digite estes códigos em cada dispositivo para revinculá-los. Atribuições e agendas serão preservadas.',
+  'settings.import.failed': 'Falha na importação',
+  'settings.import.failed_with_error': 'Falha na importação: {error}',
+  'settings.import.read_failed': 'Falha ao ler o arquivo: {error}',
+  'settings.toast.support_token_generated': 'Token de suporte gerado (válido {hours}h)',
+  'settings.toast.import_success': 'Dados importados com sucesso',
+  'settings.toast.name_required': 'O nome não pode ficar em branco',
+  'settings.toast.profile_saved': 'Perfil salvo',
+  'settings.toast.current_password_required': 'Digite sua senha atual',
+  'settings.toast.new_password_min_8': 'A nova senha deve ter no mínimo 8 caracteres',
+  'settings.toast.passwords_dont_match': 'As novas senhas não conferem',
+  'settings.toast.password_changed': 'Senha alterada',
+  'settings.toast.branding_saved': 'Branding salvo',
+  'settings.toast.preview_applied': 'Pré-visualização aplicada (recarregue para redefinir)',
+  'settings.toast.plan_updated': 'Plano atualizado',
+  'settings.toast.user_removed': 'Usuário removido',
+  'settings.user.col_user': 'Usuário',
+  'settings.user.col_auth': 'Auth',
+  'settings.user.col_role': 'Função',
+  'settings.user.col_plan': 'Plano',
+  'settings.user.col_actions': 'Ações',
+  'settings.user.remove': 'Remover',
+  'settings.user.you': 'Você',
+  'settings.user.confirm': 'Confirmar?',
+  'settings.user.count_one': '1 usuário registrado',
+  'settings.user.count_other': '{n} usuários registrados',
 };
diff --git a/frontend/js/views/device-detail.js b/frontend/js/views/device-detail.js
index cd0305c..dc9356e 100644
--- a/frontend/js/views/device-detail.js
+++ b/frontend/js/views/device-detail.js
@@ -2,6 +2,7 @@ import { api } from '../api.js';
 import { on, off, requestScreenshot, startRemote, stopRemote, sendTouch, sendKey, sendCommand } from '../socket.js';
 import { showToast } from '../components/toast.js';
 import { esc } from '../utils.js';
+import { t, tn } from '../i18n.js';
 
 let currentDevice = null;
 let statusHandler = null;
@@ -33,10 +34,10 @@ export function render(container, deviceId) {
         <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
           <line x1="19" y1="12" x2="5" y2="12"/><polyline points="12 19 5 12 12 5"/>
         </svg>
-        Back to Displays
+        ${t('device.back')}
       </a>
       <div id="deviceContent">
-        <div class="empty-state"><h3>Loading...</h3></div>
+        <div class="empty-state"><h3>${t('common.loading')}</h3></div>
       </div>
     </div>
   `;
@@ -94,7 +95,7 @@ export function render(container, deviceId) {
     if (data.device_id !== deviceId) return;
     const el = document.getElementById('nowPlayingInfo');
     if (el && data.current_content_id) {
-      el.textContent = `Playing: ${data.current_content_id}`;
+      el.textContent = t('device.now_playing_id', { id: data.current_content_id });
     }
   };
 
@@ -115,26 +116,26 @@ async function loadDevice(deviceId, activeTab = null) {
         <div class="device-header-left">
           <h1 id="deviceName">${device.name}</h1>
           <span class="device-status-badge ${device.status}">${device.status}</span>
-          ${device.owner_name || device.owner_email ? `<span style="font-size:12px;color:var(--text-muted)">Owner: ${device.owner_name || device.owner_email}</span>` : ''}
+          ${device.owner_name || device.owner_email ? `<span style="font-size:12px;color:var(--text-muted)">${t('device.owner_label', { owner: device.owner_name || device.owner_email })}</span>` : ''}
         </div>
         <div style="display:flex;gap:8px">
-          <button class="btn btn-secondary btn-sm" id="renameBtn">Rename</button>
+          <button class="btn btn-secondary btn-sm" id="renameBtn">${t('device.rename')}</button>
           <button class="btn btn-secondary btn-sm" id="screenshotBtn">
             <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
               <rect x="3" y="3" width="18" height="18" rx="2" ry="2"/><circle cx="8.5" cy="8.5" r="1.5"/>
               <polyline points="21 15 16 10 5 21"/>
             </svg>
-            Screenshot
+            ${t('device.screenshot_btn')}
           </button>
-          <button class="btn btn-danger btn-sm" id="deleteDeviceBtn">Remove</button>
+          <button class="btn btn-danger btn-sm" id="deleteDeviceBtn">${t('device.remove')}</button>
         </div>
       </div>
 
       <div class="tabs">
-        <div class="tab active" data-tab="nowplaying">Now Playing <span class="help-tip" data-tip="Live screenshot of what's currently displaying on this device.">?</span></div>
-        <div class="tab" data-tab="playlist">Playlist <span class="help-tip" data-tip="Content assigned to this device. Drag items to reorder. Add media, widgets, or kiosk pages.">?</span></div>
-        <div class="tab" data-tab="info">Device Info <span class="help-tip" data-tip="Hardware telemetry, orientation settings, notes, and device controls.">?</span></div>
-        <div class="tab" data-tab="remote">Remote Control <span class="help-tip" data-tip="View the device screen in real-time and send key presses. Works on Android APK and web player.">?</span></div>
+        <div class="tab active" data-tab="nowplaying">${t('device.tab.now_playing')} <span class="help-tip" data-tip="${t('device.tab.now_playing_tip')}">?</span></div>
+        <div class="tab" data-tab="playlist">${t('device.tab.playlist')} <span class="help-tip" data-tip="${t('device.tab.playlist_tip')}">?</span></div>
+        <div class="tab" data-tab="info">${t('device.tab.info')} <span class="help-tip" data-tip="${t('device.tab.info_tip')}">?</span></div>
+        <div class="tab" data-tab="remote">${t('device.tab.remote')} <span class="help-tip" data-tip="${t('device.tab.remote_tip')}">?</span></div>
       </div>
 
       <!-- Now Playing Tab -->
@@ -148,12 +149,12 @@ async function loadDevice(deviceId, activeTab = null) {
                   <line x1="8" y1="21" x2="16" y2="21"/>
                   <line x1="12" y1="17" x2="12" y2="21"/>
                 </svg>
-                <span>No screenshot available. Click "Screenshot" to capture one.</span>
+                <span>${t('device.no_screenshot')}</span>
               </div>`
           }
         </div>
         <p id="nowPlayingInfo" style="color:var(--text-secondary);font-size:13px;">
-          ${device.assignments?.length ? `${device.assignments.length} item(s) in playlist` : 'No content assigned'}
+          ${device.assignments?.length ? tn('device.playlist_count', device.assignments.length) : t('device.no_content_assigned')}
         </p>
       </div>
 
@@ -164,13 +165,13 @@ async function loadDevice(deviceId, activeTab = null) {
           <div style="display:flex;align-items:center;gap:10px;color:#fbbf24">
             <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M10.29 3.86L1.82 18a2 2 0 0 0 1.71 3h16.94a2 2 0 0 0 1.71-3L13.71 3.86a2 2 0 0 0-3.42 0z"/><line x1="12" y1="9" x2="12" y2="13"/><line x1="12" y1="17" x2="12.01" y2="17"/></svg>
             <div>
-              <div style="font-weight:600;font-size:14px">Unpublished changes</div>
-              <div style="font-size:12px;color:#fcd34d;opacity:0.85">${device.playlist_has_published ? 'Devices are still showing the last published version.' : 'This playlist has never been published. Devices will show nothing until you publish.'}</div>
+              <div style="font-weight:600;font-size:14px">${t('device.draft.banner_title')}</div>
+              <div style="font-size:12px;color:#fcd34d;opacity:0.85">${device.playlist_has_published ? t('device.draft.devices_showing_published') : t('device.draft.never_published')}</div>
             </div>
           </div>
           <div style="display:flex;gap:8px;flex-shrink:0">
-            ${device.playlist_has_published ? '<button class="btn btn-secondary btn-sm" id="deviceDiscardDraftBtn" style="color:#fbbf24;border-color:#92400e">Discard</button>' : ''}
-            <button class="btn btn-sm" id="devicePublishBtn" style="background:#f59e0b;color:#000;font-weight:600;border:none">Publish</button>
+            ${device.playlist_has_published ? `<button class="btn btn-secondary btn-sm" id="deviceDiscardDraftBtn" style="color:#fbbf24;border-color:#92400e">${t('device.draft.discard')}</button>` : ''}
+            <button class="btn btn-sm" id="devicePublishBtn" style="background:#f59e0b;color:#000;font-weight:600;border:none">${t('device.draft.publish')}</button>
           </div>
         </div>
         ` : ''}
@@ -180,28 +181,28 @@ async function loadDevice(deviceId, activeTab = null) {
             <rect x="3" y="3" width="18" height="18" rx="2" ry="2"/><line x1="3" y1="9" x2="21" y2="9"/><line x1="9" y1="21" x2="9" y2="9"/>
           </svg>
           <div style="flex:1">
-            <div style="font-size:12px;color:var(--text-muted);margin-bottom:4px">Screen Layout</div>
+            <div style="font-size:12px;color:var(--text-muted);margin-bottom:4px">${t('device.layout.label')}</div>
             <select id="deviceLayoutSelect" class="input" style="background:var(--bg-input);padding:4px 8px;font-size:13px">
-              <option value="">Fullscreen (default)</option>
+              <option value="">${t('device.layout.fullscreen_default')}</option>
             </select>
           </div>
-          <button class="btn btn-secondary btn-sm" id="applyLayoutBtn">Apply</button>
+          <button class="btn btn-secondary btn-sm" id="applyLayoutBtn">${t('device.layout.apply')}</button>
         </div>
 
         <div style="display:flex;justify-content:space-between;align-items:center;margin-bottom:16px">
           <div style="display:flex;align-items:center;gap:12px">
-            <h3 style="font-size:16px">Playlist</h3>
+            <h3 style="font-size:16px">${t('device.playlist.label')}</h3>
             <select class="input" id="playlistPicker" style="font-size:12px;padding:4px 8px;width:200px">
-              <option value="">No playlist</option>
+              <option value="">${t('device.playlist.no_playlist')}</option>
             </select>
           </div>
           <div style="display:flex;gap:6px">
-            <button class="btn btn-secondary btn-sm" id="copyPlaylistBtn">Copy To...</button>
+            <button class="btn btn-secondary btn-sm" id="copyPlaylistBtn">${t('device.playlist.copy_to_btn')}</button>
             <button class="btn btn-primary btn-sm" id="addContentBtn">
             <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
               <line x1="12" y1="5" x2="12" y2="19"/><line x1="5" y1="12" x2="19" y2="12"/>
             </svg>
-            Add Content
+            ${t('device.playlist.add_content_btn')}
           </button>
           </div>
         </div>
@@ -214,16 +215,16 @@ async function loadDevice(deviceId, activeTab = null) {
       <div class="tab-content" id="tab-info">
         <div class="info-grid">
           <div class="info-card">
-            <div class="info-card-label">Status</div>
+            <div class="info-card-label">${t('device.info.status')}</div>
             <div class="info-card-value" style="color:var(--${device.status === 'online' ? 'success' : 'danger'})">${device.status}</div>
           </div>
           <div class="info-card">
-            <div class="info-card-label">IP Address</div>
+            <div class="info-card-label">${t('device.info.ip_address')}</div>
             <div class="info-card-value small">${device.ip_address || '--'}</div>
           </div>
           ${device.android_version && !device.android_version.startsWith('Web/') ? `
           <div class="info-card">
-            <div class="info-card-label">Battery</div>
+            <div class="info-card-label">${t('device.info.battery')}</div>
             <div class="info-card-value" id="telBattery">${latestTelemetry.battery_level != null ? latestTelemetry.battery_level + '%' : '--'}</div>
             ${latestTelemetry.battery_level != null ? `
             <div class="progress-bar">
@@ -232,8 +233,8 @@ async function loadDevice(deviceId, activeTab = null) {
             </div>` : ''}
           </div>
           <div class="info-card">
-            <div class="info-card-label">Storage</div>
-            <div class="info-card-value small" id="telStorage">${latestTelemetry.storage_free_mb ? formatBytes(latestTelemetry.storage_free_mb) + ' free' : '--'}</div>
+            <div class="info-card-label">${t('device.info.storage')}</div>
+            <div class="info-card-value small" id="telStorage">${latestTelemetry.storage_free_mb ? t('device.info.size_free', { size: formatBytes(latestTelemetry.storage_free_mb) }) : '--'}</div>
             ${latestTelemetry.storage_total_mb ? `
             <div class="progress-bar">
               <div class="progress-bar-fill ${((latestTelemetry.storage_total_mb - latestTelemetry.storage_free_mb) / latestTelemetry.storage_total_mb) < 0.8 ? 'success' : 'warning'}"
@@ -242,42 +243,42 @@ async function loadDevice(deviceId, activeTab = null) {
           </div>
           ` : `
           <div class="info-card">
-            <div class="info-card-label">Player Type</div>
-            <div class="info-card-value small">Web Player</div>
+            <div class="info-card-label">${t('device.info.player_type')}</div>
+            <div class="info-card-value small">${t('device.info.web_player')}</div>
           </div>
           `}
           ${device.android_version && !device.android_version.startsWith('Web/') ? `
           <div class="info-card">
-            <div class="info-card-label">WiFi</div>
+            <div class="info-card-label">${t('device.info.wifi')}</div>
             <div class="info-card-value small" id="telWifi">${latestTelemetry.wifi_ssid || '--'}</div>
             <div style="font-size:11px;color:var(--text-muted);margin-top:2px" id="telRssi">${latestTelemetry.wifi_rssi ? latestTelemetry.wifi_rssi + ' dBm' : ''}</div>
           </div>
           ` : ''}
           <div class="info-card">
-            <div class="info-card-label">Uptime</div>
+            <div class="info-card-label">${t('device.info.uptime')}</div>
             <div class="info-card-value small" id="telUptime">${formatUptime(latestTelemetry.uptime_seconds)}</div>
           </div>
           ${device.android_version && !device.android_version.startsWith('Web/') ? `
           <div class="info-card">
-            <div class="info-card-label">Android Version</div>
+            <div class="info-card-label">${t('device.info.android_version')}</div>
             <div class="info-card-value small">${device.android_version}</div>
           </div>
           <div class="info-card">
-            <div class="info-card-label">App Version</div>
+            <div class="info-card-label">${t('device.info.app_version')}</div>
             <div class="info-card-value small">${device.app_version || '--'}</div>
           </div>
           ` : ''}
           <div class="info-card">
-            <div class="info-card-label">Screen Resolution</div>
+            <div class="info-card-label">${t('device.info.screen_resolution')}</div>
             <div class="info-card-value small">${device.screen_width && device.screen_height ? device.screen_width + 'x' + device.screen_height : '--'}</div>
           </div>
           ${device.android_version && !device.android_version.startsWith('Web/') ? `
           <div class="info-card">
-            <div class="info-card-label">RAM</div>
-            <div class="info-card-value small" id="telRam">${latestTelemetry.ram_free_mb ? formatBytes(latestTelemetry.ram_free_mb) + ' free' : '--'}</div>
+            <div class="info-card-label">${t('device.info.ram')}</div>
+            <div class="info-card-value small" id="telRam">${latestTelemetry.ram_free_mb ? t('device.info.size_free', { size: formatBytes(latestTelemetry.ram_free_mb) }) : '--'}</div>
           </div>
           <div class="info-card">
-            <div class="info-card-label">CPU Usage</div>
+            <div class="info-card-label">${t('device.info.cpu_usage')}</div>
             <div class="info-card-value small" id="telCpu">${latestTelemetry.cpu_usage != null ? latestTelemetry.cpu_usage.toFixed(1) + '%' : '--'}</div>
           </div>
           ` : ''}
@@ -285,16 +286,16 @@ async function loadDevice(deviceId, activeTab = null) {
 
         <!-- Uptime Timeline (24h) -->
         <div style="margin-top:20px">
-          <h4 style="font-size:13px;margin-bottom:8px">Uptime Timeline (Last 24 Hours)</h4>
+          <h4 style="font-size:13px;margin-bottom:8px">${t('device.timeline.title')}</h4>
           <div id="uptimeTimeline" style="display:flex;height:32px;border-radius:4px;overflow:hidden;border:1px solid var(--border);background:var(--bg-primary)"></div>
           <div style="display:flex;justify-content:space-between;margin-top:4px">
-            <span style="font-size:10px;color:var(--text-muted)">24h ago</span>
-            <span style="font-size:10px;color:var(--text-muted)">Now</span>
+            <span style="font-size:10px;color:var(--text-muted)">${t('device.timeline.h24_ago')}</span>
+            <span style="font-size:10px;color:var(--text-muted)">${t('device.timeline.now')}</span>
           </div>
           <div style="display:flex;gap:12px;margin-top:8px;font-size:11px;color:var(--text-muted)">
-            <span><span style="display:inline-block;width:10px;height:10px;background:var(--success);border-radius:2px;vertical-align:-1px"></span> Online</span>
-            <span><span style="display:inline-block;width:10px;height:10px;background:var(--danger);border-radius:2px;vertical-align:-1px"></span> Offline</span>
-            <span><span style="display:inline-block;width:10px;height:10px;background:var(--bg-primary);border:1px solid var(--border);border-radius:2px;vertical-align:-1px"></span> No data</span>
+            <span><span style="display:inline-block;width:10px;height:10px;background:var(--success);border-radius:2px;vertical-align:-1px"></span> ${t('device.timeline.online')}</span>
+            <span><span style="display:inline-block;width:10px;height:10px;background:var(--danger);border-radius:2px;vertical-align:-1px"></span> ${t('device.timeline.offline')}</span>
+            <span><span style="display:inline-block;width:10px;height:10px;background:var(--bg-primary);border:1px solid var(--border);border-radius:2px;vertical-align:-1px"></span> ${t('device.timeline.no_data')}</span>
             <span id="uptimePercent" style="margin-left:auto;font-weight:600"></span>
           </div>
         </div>
@@ -302,63 +303,63 @@ async function loadDevice(deviceId, activeTab = null) {
         <div style="margin-top:20px">
           <div style="display:flex;gap:12px;margin-bottom:12px">
             <div class="form-group" style="flex:1;margin:0">
-              <label>Orientation / Rotation</label>
+              <label>${t('device.form.orientation_label')}</label>
               <select id="deviceOrientation" class="input" style="background:var(--bg-input)">
-                <option value="landscape" ${'landscape' === (device.orientation || 'landscape') ? 'selected' : ''}>Landscape (0°)</option>
-                <option value="portrait" ${'portrait' === device.orientation ? 'selected' : ''}>Portrait (90° CW)</option>
-                <option value="landscape-flipped" ${'landscape-flipped' === device.orientation ? 'selected' : ''}>Landscape Flipped (180°)</option>
-                <option value="portrait-flipped" ${'portrait-flipped' === device.orientation ? 'selected' : ''}>Portrait Flipped (270° CW)</option>
+                <option value="landscape" ${'landscape' === (device.orientation || 'landscape') ? 'selected' : ''}>${t('device.form.orientation.landscape')}</option>
+                <option value="portrait" ${'portrait' === device.orientation ? 'selected' : ''}>${t('device.form.orientation.portrait')}</option>
+                <option value="landscape-flipped" ${'landscape-flipped' === device.orientation ? 'selected' : ''}>${t('device.form.orientation.landscape_flipped')}</option>
+                <option value="portrait-flipped" ${'portrait-flipped' === device.orientation ? 'selected' : ''}>${t('device.form.orientation.portrait_flipped')}</option>
               </select>
             </div>
             <div class="form-group" style="flex:1;margin:0">
-              <label>Default Content</label>
+              <label>${t('device.form.default_content_label')}</label>
               <select id="deviceDefaultContent" class="input" style="background:var(--bg-input)">
-                <option value="">None (show "Waiting...")</option>
+                <option value="">${t('device.form.default_content_none')}</option>
               </select>
             </div>
           </div>
           <div class="form-group">
-            <label>Notes</label>
-            <textarea id="deviceNotes" class="input" rows="3" placeholder="Location, setup details, etc." style="resize:vertical">${esc(device.notes || '')}</textarea>
+            <label>${t('device.form.notes_label')}</label>
+            <textarea id="deviceNotes" class="input" rows="3" placeholder="${t('device.form.notes_placeholder')}" style="resize:vertical">${esc(device.notes || '')}</textarea>
           </div>
-          <button class="btn btn-secondary btn-sm" id="saveNotesBtn">Save Settings</button>
+          <button class="btn btn-secondary btn-sm" id="saveNotesBtn">${t('device.form.save_settings')}</button>
         </div>
         <div style="margin-top:20px;display:flex;gap:8px;flex-wrap:wrap">
           <button class="btn btn-secondary btn-sm" id="rebootBtn">
             <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
               <polyline points="23 4 23 10 17 10"/><path d="M20.49 15a9 9 0 1 1-2.12-9.36L23 10"/>
             </svg>
-            Reboot Device
+            ${t('device.ctl.reboot_device')}
           </button>
           <button class="btn btn-secondary btn-sm" id="screenOffBtn">
             <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
               <rect x="2" y="3" width="20" height="14" rx="2" ry="2"/><line x1="8" y1="21" x2="16" y2="21"/><line x1="12" y1="17" x2="12" y2="21"/>
             </svg>
-            Screen Off
+            ${t('device.ctl.screen_off')}
           </button>
           <button class="btn btn-secondary btn-sm" id="screenOnBtn">
             <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
               <circle cx="12" cy="12" r="5"/><line x1="12" y1="1" x2="12" y2="3"/><line x1="12" y1="21" x2="12" y2="23"/><line x1="4.22" y1="4.22" x2="5.64" y2="5.64"/><line x1="18.36" y1="18.36" x2="19.78" y2="19.78"/><line x1="1" y1="12" x2="3" y2="12"/><line x1="21" y1="12" x2="23" y2="12"/><line x1="4.22" y1="19.78" x2="5.64" y2="18.36"/><line x1="18.36" y1="5.64" x2="19.78" y2="4.22"/>
             </svg>
-            Screen On
+            ${t('device.ctl.screen_on')}
           </button>
           <button class="btn btn-secondary btn-sm" id="launchAppBtn">
             <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
               <polygon points="5 3 19 12 5 21 5 3"/>
             </svg>
-            Launch Player
+            ${t('device.ctl.launch_player')}
           </button>
           <button class="btn btn-secondary btn-sm" id="forceUpdateBtn">
             <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
               <path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4"/><polyline points="7 10 12 15 17 10"/><line x1="12" y1="15" x2="12" y2="3"/>
             </svg>
-            Force Update
+            ${t('device.ctl.force_update')}
           </button>
           <button class="btn btn-danger btn-sm" id="shutdownBtn">
             <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
               <path d="M18.36 6.64a9 9 0 1 1-12.73 0"/><line x1="12" y1="2" x2="12" y2="12"/>
             </svg>
-            Shutdown
+            ${t('device.ctl.shutdown')}
           </button>
         </div>
       </div>
@@ -375,24 +376,24 @@ async function loadDevice(deviceId, activeTab = null) {
                   <line x1="8" y1="21" x2="16" y2="21"/>
                   <line x1="12" y1="17" x2="12" y2="21"/>
                 </svg>
-                <p style="color:var(--text-secondary)">Click "Start Remote" to begin</p>
+                <p style="color:var(--text-secondary)">${t('device.remote.start_prompt')}</p>
               </div>
             </div>
           </div>
           <div class="remote-controls">
-            <button class="btn btn-primary" id="startRemoteBtn">Start Remote</button>
-            <button class="btn btn-secondary" id="stopRemoteBtn" style="display:none">Stop Remote</button>
+            <button class="btn btn-primary" id="startRemoteBtn">${t('device.remote.start')}</button>
+            <button class="btn btn-secondary" id="stopRemoteBtn" style="display:none">${t('device.remote.stop')}</button>
             <hr style="border-color:var(--border);margin:8px 0">
             <!-- Always available -->
-            <button class="btn btn-secondary btn-sm" onclick="window._sendKey('KEYCODE_VOLUME_UP')">Vol +</button>
-            <button class="btn btn-secondary btn-sm" onclick="window._sendKey('KEYCODE_VOLUME_DOWN')">Vol -</button>
+            <button class="btn btn-secondary btn-sm" onclick="window._sendKey('KEYCODE_VOLUME_UP')">${t('device.remote.vol_up')}</button>
+            <button class="btn btn-secondary btn-sm" onclick="window._sendKey('KEYCODE_VOLUME_DOWN')">${t('device.remote.vol_down')}</button>
             <hr style="border-color:var(--border);margin:8px 0">
             <!-- System View controls (disabled until enabled) -->
             <div id="systemViewControls" style="opacity:0.4;pointer-events:none">
-              <button class="btn btn-secondary btn-sm" onclick="window._sendKey('KEYCODE_HOME')">Home</button>
-              <button class="btn btn-secondary btn-sm" onclick="window._sendKey('KEYCODE_BACK')">Back</button>
-              <button class="btn btn-secondary btn-sm" onclick="window._sendKey('KEYCODE_APP_SWITCH')">Recents</button>
-              <button class="btn btn-danger btn-sm" onclick="window._sendKey('KEYCODE_POWER')">Power</button>
+              <button class="btn btn-secondary btn-sm" onclick="window._sendKey('KEYCODE_HOME')">${t('device.remote.home')}</button>
+              <button class="btn btn-secondary btn-sm" onclick="window._sendKey('KEYCODE_BACK')">${t('device.remote.back')}</button>
+              <button class="btn btn-secondary btn-sm" onclick="window._sendKey('KEYCODE_APP_SWITCH')">${t('device.remote.recents')}</button>
+              <button class="btn btn-danger btn-sm" onclick="window._sendKey('KEYCODE_POWER')">${t('device.remote.power')}</button>
               <hr style="border-color:var(--border);margin:8px 0">
               <button class="btn btn-secondary btn-sm" onclick="window._sendKey('KEYCODE_DPAD_UP')">&#9650;</button>
               <div style="display:flex;gap:4px">
@@ -400,19 +401,19 @@ async function loadDevice(deviceId, activeTab = null) {
                 <button class="btn btn-secondary btn-sm" style="flex:1" onclick="window._sendKey('KEYCODE_DPAD_RIGHT')">&#9654;</button>
               </div>
               <button class="btn btn-secondary btn-sm" onclick="window._sendKey('KEYCODE_DPAD_DOWN')">&#9660;</button>
-              <button class="btn btn-primary btn-sm" onclick="window._sendKey('KEYCODE_DPAD_CENTER')">OK</button>
+              <button class="btn btn-primary btn-sm" onclick="window._sendKey('KEYCODE_DPAD_CENTER')">${t('device.remote.ok')}</button>
               <hr style="border-color:var(--border);margin:8px 0">
-              <button class="btn btn-secondary btn-sm" onclick="window._sendCmd('settings')">Settings</button>
+              <button class="btn btn-secondary btn-sm" onclick="window._sendCmd('settings')">${t('device.remote.settings')}</button>
               <hr style="border-color:var(--border);margin:8px 0">
               <div style="display:flex;gap:4px">
-                <button class="btn btn-secondary btn-sm" style="flex:1" onclick="window._sendCmd('screen_off')">Scrn Off</button>
-                <button class="btn btn-secondary btn-sm" style="flex:1" onclick="window._sendCmd('screen_on')">Scrn On</button>
+                <button class="btn btn-secondary btn-sm" style="flex:1" onclick="window._sendCmd('screen_off')">${t('device.remote.scrn_off')}</button>
+                <button class="btn btn-secondary btn-sm" style="flex:1" onclick="window._sendCmd('screen_on')">${t('device.remote.scrn_on')}</button>
               </div>
             </div>
-            <button class="btn btn-primary btn-sm" id="enableSystemCaptureBtn" onclick="window._enableSystemView()" title="Prompts the device user to allow full screen capture - enables remote view of home screen, settings, and other apps" style="margin-top:8px">
-              Enable System View
+            <button class="btn btn-primary btn-sm" id="enableSystemCaptureBtn" onclick="window._enableSystemView()" title="${t('device.remote.system_view_tooltip')}" style="margin-top:8px">
+              ${t('device.remote.enable_system_view')}
             </button>
-            <span id="systemViewHint" style="font-size:10px;color:var(--text-muted);line-height:1.2;display:block;margin-top:4px">Requires one-time approval on device</span>
+            <span id="systemViewHint" style="font-size:10px;color:var(--text-muted);line-height:1.2;display:block;margin-top:4px">${t('device.remote.system_view_hint')}</span>
           </div>
         </div>
       </div>
@@ -431,13 +432,13 @@ async function loadDevice(deviceId, activeTab = null) {
       // Unlock the system controls after a short delay (user needs to tap "Start now" on device)
       const btn = document.getElementById('enableSystemCaptureBtn');
       const hint = document.getElementById('systemViewHint');
-      if (btn) { btn.textContent = 'Waiting for device approval...'; btn.disabled = true; }
+      if (btn) { btn.textContent = t('device.remote.waiting_for_approval'); btn.disabled = true; }
       // Check periodically if the device granted it (we'll know because screenshots keep coming even after Home)
       setTimeout(() => {
         const controls = document.getElementById('systemViewControls');
         if (controls) { controls.style.opacity = '1'; controls.style.pointerEvents = 'auto'; }
-        if (btn) { btn.textContent = 'System View Enabled'; btn.style.background = 'var(--success)'; }
-        if (hint) hint.textContent = 'Navigation and system controls unlocked';
+        if (btn) { btn.textContent = t('device.remote.system_view_enabled'); btn.style.background = 'var(--success)'; }
+        if (hint) hint.textContent = t('device.remote.unlocked_hint');
       }, 5000);
     };
 
@@ -465,13 +466,13 @@ async function loadDevice(deviceId, activeTab = null) {
     }
 
   } catch (err) {
-    contentEl.innerHTML = `<div class="empty-state"><h3>Failed to load device</h3><p>${esc(err.message)}</p></div>`;
+    contentEl.innerHTML = `<div class="empty-state"><h3>${t('device.failed_load')}</h3><p>${esc(err.message)}</p></div>`;
   }
 }
 
 function renderPlaylist(assignments) {
   if (!assignments.length) {
-    return `<div class="empty-state"><h3>No content assigned</h3><p>Add content from your library to this display's playlist.</p></div>`;
+    return `<div class="empty-state"><h3>${t('device.playlist.empty_title')}</h3><p>${t('device.playlist.empty_desc')}</p></div>`;
   }
   return assignments.map((a, i) => `
     <div class="playlist-item" data-assignment-id="${a.id}" draggable="true" data-sort="${i}">
@@ -493,10 +494,10 @@ function renderPlaylist(assignments) {
             </div>`
       }
       <div class="playlist-item-info">
-        <div class="playlist-item-name">${esc(a.filename || a.widget_name || 'Unknown')}</div>
+        <div class="playlist-item-name">${esc(a.filename || a.widget_name || t('common.unknown'))}</div>
         <div class="playlist-item-meta">
-          ${a.widget_id && !a.content_id ? `Widget (${a.widget_type || 'custom'})` : a.mime_type === 'video/youtube' ? 'YouTube' : a.mime_type?.startsWith('video/') ? 'Video' : 'Image'}
-          ${a.zone_id ? ` &middot; <span style="color:var(--accent)">Zone: ${a.zone_id.slice(0,8)}</span>` : ''}
+          ${a.widget_id && !a.content_id ? t('device.pl_item.widget_with_type', { type: a.widget_type || 'custom' }) : a.mime_type === 'video/youtube' ? t('device.pl_item.youtube') : a.mime_type?.startsWith('video/') ? t('device.pl_item.video') : t('device.pl_item.image')}
+          ${a.zone_id ? ` &middot; <span style="color:var(--accent)">${t('device.pl_item.zone_label', { id: a.zone_id.slice(0,8) })}</span>` : ''}
           ${a.content_duration ? ` &middot; ${Math.floor(a.content_duration / 60)}:${String(Math.floor(a.content_duration % 60)).padStart(2, '0')}` : ''}
           ${!a.content_duration && !a.mime_type?.startsWith('video/') && a.duration_sec ? ` &middot; ${a.duration_sec}s` : ''}
           ${a.schedule_start ? ` &middot; ${a.schedule_start}-${a.schedule_end}` : ''}
@@ -504,15 +505,15 @@ function renderPlaylist(assignments) {
       </div>
       <div class="playlist-item-actions" style="display:flex;align-items:center;gap:4px">
         <select class="input zone-select" data-assignment-id="${a.id}" style="width:100px;font-size:11px;padding:2px 4px;background:var(--bg-input);display:none">
-          <option value="">No zone</option>
+          <option value="">${t('device.pl_item.no_zone')}</option>
         </select>
-        <button class="btn-icon mute-toggle" data-mute-assignment="${a.id}" data-muted="${a.muted ? '1' : '0'}" title="${a.muted ? 'Unmute' : 'Mute'}" style="color:${a.muted ? 'var(--danger)' : 'var(--text-muted)'}">
+        <button class="btn-icon mute-toggle" data-mute-assignment="${a.id}" data-muted="${a.muted ? '1' : '0'}" title="${a.muted ? t('device.pl_item.unmute') : t('device.pl_item.mute')}" style="color:${a.muted ? 'var(--danger)' : 'var(--text-muted)'}">
           ${a.muted
             ? '<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><polygon points="11 5 6 9 2 9 2 15 6 15 11 19 11 5"/><line x1="23" y1="9" x2="17" y2="15"/><line x1="17" y1="9" x2="23" y2="15"/></svg>'
             : '<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><polygon points="11 5 6 9 2 9 2 15 6 15 11 19 11 5"/><path d="M19.07 4.93a10 10 0 0 1 0 14.14M15.54 8.46a5 5 0 0 1 0 7.07"/></svg>'
           }
         </button>
-        <button class="btn-icon" title="Remove" data-remove-assignment="${a.id}">
+        <button class="btn-icon" title="${t('device.pl_item.remove')}" data-remove-assignment="${a.id}">
           <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
             <polyline points="3 6 5 6 21 6"/><path d="M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6m3 0V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2"/>
           </svg>
@@ -537,18 +538,18 @@ async function setupActions(device) {
   // Screenshot button
   document.getElementById('screenshotBtn')?.addEventListener('click', () => {
     requestScreenshot(device.id);
-    showToast('Screenshot requested', 'info');
+    showToast(t('device.toast.screenshot_requested'), 'info');
   });
 
   // Rename
   document.getElementById('renameBtn')?.addEventListener('click', async () => {
-    const name = prompt('Enter new name:', device.name);
+    const name = prompt(t('device.prompt_new_name'), device.name);
     if (name && name !== device.name) {
       try {
         await api.updateDevice(device.id, { name });
         document.getElementById('deviceName').textContent = name;
         currentDevice.name = name;
-        showToast('Display renamed', 'success');
+        showToast(t('device.toast.renamed'), 'success');
       } catch (err) {
         showToast(err.message, 'error');
       }
@@ -577,7 +578,7 @@ async function setupActions(device) {
         orientation: document.getElementById('deviceOrientation').value,
         default_content_id: document.getElementById('deviceDefaultContent').value || null,
       });
-      showToast('Settings saved', 'success');
+      showToast(t('device.toast.settings_saved'), 'success');
     } catch (err) {
       showToast(err.message, 'error');
     }
@@ -589,13 +590,13 @@ async function setupActions(device) {
     devicePublishBtn.addEventListener('click', async () => {
       try {
         devicePublishBtn.disabled = true;
-        devicePublishBtn.textContent = 'Publishing...';
+        devicePublishBtn.textContent = t('device.draft.publishing');
         await api.publishPlaylist(device.playlist_id);
-        showToast('Playlist published — devices updated');
+        showToast(t('device.toast.published'));
         loadDevice(device.id, 'playlist');
       } catch (err) {
         devicePublishBtn.disabled = false;
-        devicePublishBtn.textContent = 'Publish';
+        devicePublishBtn.textContent = t('device.draft.publish');
         showToast(err.message, 'error');
       }
     });
@@ -603,10 +604,10 @@ async function setupActions(device) {
   const deviceDiscardBtn = document.getElementById('deviceDiscardDraftBtn');
   if (deviceDiscardBtn && device.playlist_id) {
     deviceDiscardBtn.addEventListener('click', async () => {
-      if (!confirm('Discard all unpublished changes and revert to the last published version?')) return;
+      if (!confirm(t('device.confirm_discard_draft'))) return;
       try {
         await api.discardPlaylistDraft(device.playlist_id);
-        showToast('Draft changes discarded');
+        showToast(t('device.toast.draft_discarded'));
         loadDevice(device.id, 'playlist');
       } catch (err) {
         showToast(err.message, 'error');
@@ -621,7 +622,9 @@ async function setupActions(device) {
       playlists.forEach(p => {
         const opt = document.createElement('option');
         opt.value = p.id;
-        opt.textContent = `${p.name}${p.is_auto_generated ? ' (auto)' : ''} — ${p.item_count} items`;
+        opt.textContent = p.is_auto_generated
+          ? t('device.playlist_picker.with_auto', { name: p.name, n: p.item_count })
+          : t('device.playlist_picker.with_count', { name: p.name, n: p.item_count });
         if (p.id === device.playlist_id) opt.selected = true;
         playlistPicker.appendChild(opt);
       });
@@ -638,7 +641,7 @@ async function setupActions(device) {
         const assignments = await api.getAssignments(device.id);
         document.getElementById('playlistContainer').innerHTML = renderPlaylist(assignments);
         attachRemoveHandlers(device);
-        showToast('Playlist changed');
+        showToast(t('device.toast.playlist_changed'));
       } catch (err) {
         showToast(err.message, 'error');
       }
@@ -650,12 +653,12 @@ async function setupActions(device) {
     try {
       const devices = await api.getDevices();
       const others = devices.filter(d => d.id !== device.id);
-      if (!others.length) { showToast('No other devices to copy to', 'info'); return; }
+      if (!others.length) { showToast(t('device.copy.no_other_devices'), 'info'); return; }
 
-      const targetId = prompt('Copy playlist to which device?\n\n' + others.map((d, i) => `${i + 1}. ${d.name}`).join('\n') + '\n\nEnter number:');
+      const targetId = prompt(t('device.copy.prompt', { list: others.map((d, i) => `${i + 1}. ${d.name}`).join('\n') }));
       if (!targetId) return;
       const target = others[parseInt(targetId) - 1];
-      if (!target) { showToast('Invalid selection', 'error'); return; }
+      if (!target) { showToast(t('device.copy.invalid_selection'), 'error'); return; }
 
       const token = localStorage.getItem('token');
       const res = await fetch(`/api/assignments/device/${device.id}/copy-to/${target.id}`, {
@@ -664,7 +667,7 @@ async function setupActions(device) {
         body: JSON.stringify({ replace: false })
       });
       const data = await res.json();
-      if (res.ok) showToast(`Copied ${data.copied} items to ${target.name}`, 'success');
+      if (res.ok) showToast(t('device.copy.toast', { n: data.copied, device: target.name }), 'success');
       else showToast(data.error, 'error');
     } catch (err) { showToast(err.message, 'error'); }
   });
@@ -676,27 +679,27 @@ async function setupActions(device) {
   deleteBtn?.addEventListener('click', async () => {
     if (deleteConfirming) {
       try {
-        deleteBtn.textContent = 'Removing...';
+        deleteBtn.textContent = t('device.toast.removing');
         deleteBtn.disabled = true;
         await api.deleteDevice(device.id);
-        showToast('Display removed', 'success');
+        showToast(t('device.toast.removed'), 'success');
         window.location.hash = '/';
       } catch (err) {
         showToast(err.message, 'error');
-        deleteBtn.textContent = 'Remove';
+        deleteBtn.textContent = t('device.remove');
         deleteBtn.disabled = false;
         deleteConfirming = false;
       }
       return;
     }
     deleteConfirming = true;
-    deleteBtn.textContent = 'Click again to confirm';
+    deleteBtn.textContent = t('device.click_to_confirm');
     deleteBtn.style.background = 'var(--danger)';
     deleteBtn.style.color = 'white';
     clearTimeout(deleteTimeout);
     deleteTimeout = setTimeout(() => {
       deleteConfirming = false;
-      deleteBtn.textContent = 'Remove';
+      deleteBtn.textContent = t('device.remove');
       deleteBtn.style.background = '';
       deleteBtn.style.color = '';
     }, 3000);
@@ -709,17 +712,17 @@ async function setupActions(device) {
   rebootBtn?.addEventListener('click', () => {
     if (rebootConfirming) {
       sendCommand(device.id, 'reboot', {});
-      showToast('Reboot command sent', 'info');
+      showToast(t('device.toast.reboot_sent'), 'info');
       rebootConfirming = false;
-      rebootBtn.textContent = 'Reboot Device';
+      rebootBtn.textContent = t('device.ctl.reboot_device');
       return;
     }
     rebootConfirming = true;
-    rebootBtn.textContent = 'Click again to confirm';
+    rebootBtn.textContent = t('device.click_to_confirm');
     clearTimeout(rebootTimeout);
     rebootTimeout = setTimeout(() => {
       rebootConfirming = false;
-      rebootBtn.textContent = 'Reboot Device';
+      rebootBtn.textContent = t('device.ctl.reboot_device');
     }, 3000);
   });
 
@@ -730,19 +733,19 @@ async function setupActions(device) {
   shutdownBtn?.addEventListener('click', () => {
     if (shutdownConfirming) {
       sendCommand(device.id, 'shutdown', {});
-      showToast('Shutdown command sent', 'info');
+      showToast(t('device.toast.shutdown_sent'), 'info');
       shutdownConfirming = false;
-      shutdownBtn.textContent = 'Shutdown';
+      shutdownBtn.textContent = t('device.ctl.shutdown');
       return;
     }
     shutdownConfirming = true;
-    shutdownBtn.textContent = 'Click again to confirm';
+    shutdownBtn.textContent = t('device.click_to_confirm');
     shutdownBtn.style.background = 'var(--danger)';
     shutdownBtn.style.color = 'white';
     clearTimeout(shutdownTimeout);
     shutdownTimeout = setTimeout(() => {
       shutdownConfirming = false;
-      shutdownBtn.textContent = 'Shutdown';
+      shutdownBtn.textContent = t('device.ctl.shutdown');
       shutdownBtn.style.background = '';
       shutdownBtn.style.color = '';
     }, 3000);
@@ -751,25 +754,25 @@ async function setupActions(device) {
   // Screen Off
   document.getElementById('screenOffBtn')?.addEventListener('click', () => {
     sendCommand(device.id, 'screen_off', {});
-    showToast('Screen off command sent', 'info');
+    showToast(t('device.toast.screen_off_sent'), 'info');
   });
 
   // Screen On
   document.getElementById('screenOnBtn')?.addEventListener('click', () => {
     sendCommand(device.id, 'screen_on', {});
-    showToast('Screen on command sent', 'info');
+    showToast(t('device.toast.screen_on_sent'), 'info');
   });
 
   // Launch Player
   document.getElementById('launchAppBtn')?.addEventListener('click', () => {
     sendCommand(device.id, 'launch', {});
-    showToast('Launch command sent', 'info');
+    showToast(t('device.toast.launch_sent'), 'info');
   });
 
   // Force Update
   document.getElementById('forceUpdateBtn')?.addEventListener('click', () => {
     sendCommand(device.id, 'update', {});
-    showToast('Update check triggered', 'info');
+    showToast(t('device.toast.update_triggered'), 'info');
   });
 }
 
@@ -787,7 +790,7 @@ function setupRemote(device) {
     startBtn.style.display = 'none';
     stopBtn.style.display = '';
     overlay.style.display = 'none';
-    showToast('Remote session started', 'info');
+    showToast(t('device.toast.remote_started'), 'info');
   });
 
   stopBtn?.addEventListener('click', () => {
@@ -828,7 +831,7 @@ async function setupPlaylistActions(device) {
       layouts.filter(l => !l.is_template).forEach(l => {
         const opt = document.createElement('option');
         opt.value = l.id;
-        opt.textContent = `${l.name} (${l.zones?.length || 0} zones)`;
+        opt.textContent = t('device.layout.zones_count', { name: l.name, n: l.zones?.length || 0 });
         if (device.layout_id === l.id) opt.selected = true;
         select.appendChild(opt);
       });
@@ -836,7 +839,7 @@ async function setupPlaylistActions(device) {
       layouts.filter(l => l.is_template).forEach(l => {
         const opt = document.createElement('option');
         opt.value = l.id;
-        opt.textContent = `[Template] ${l.name} (${l.zones?.length || 0} zones)`;
+        opt.textContent = t('device.layout.template_zones_count', { name: l.name, n: l.zones?.length || 0 });
         if (device.layout_id === l.id) opt.selected = true;
         select.appendChild(opt);
       });
@@ -854,7 +857,7 @@ async function setupPlaylistActions(device) {
         headers: { 'Content-Type': 'application/json', Authorization: `Bearer ${localStorage.getItem('token')}` },
         body: JSON.stringify({ layout_id: layoutId || null })
       });
-      showToast(layoutId ? 'Layout applied' : 'Switched to fullscreen', 'success');
+      showToast(layoutId ? t('device.toast.layout_applied') : t('device.toast.switched_to_fullscreen'), 'success');
       // Reload the device page to show updated zone selectors, stay on playlist tab
       loadDevice(device.id, 'playlist');
     } catch (err) {
@@ -884,7 +887,7 @@ async function setupPlaylistActions(device) {
       }
 
       if (!content.length && !widgets.length && !kioskPages.length) {
-        showToast('No content, widgets, or kiosk pages yet. Create something first!', 'error');
+        showToast(t('device.assign.empty_all'), 'error');
         return;
       }
 
@@ -893,7 +896,7 @@ async function setupPlaylistActions(device) {
       modal.innerHTML = `
         <div class="modal" style="max-width:650px;width:95vw">
           <div class="modal-header">
-            <h3>Add to Playlist</h3>
+            <h3>${t('device.assign.modal_title')}</h3>
             <button class="btn-icon" id="closeAssignModal">
               <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
                 <line x1="18" y1="6" x2="6" y2="18"/><line x1="6" y1="6" x2="18" y2="18"/>
@@ -903,22 +906,22 @@ async function setupPlaylistActions(device) {
           <div class="modal-body">
             ${zones.length > 0 ? `
             <div class="form-group">
-              <label>Zone</label>
+              <label>${t('device.assign.zone_label')}</label>
               <select id="assignZone" class="input" style="background:var(--bg-input)">
-                <option value="">Default (fullscreen)</option>
+                <option value="">${t('device.assign.zone_default')}</option>
                 ${zones.map(z => `<option value="${z.id}">${z.name} (${Math.round(z.width_percent)}% x ${Math.round(z.height_percent)}%)</option>`).join('')}
               </select>
             </div>
             ` : ''}
             <div class="form-group">
-              <label>Display Duration (seconds, for images/widgets)</label>
+              <label>${t('device.assign.duration_label')}</label>
               <input type="number" id="assignDuration" class="input" value="10" min="1" max="3600">
             </div>
             <!-- Tabs -->
             <div style="display:flex;gap:0;border-bottom:1px solid var(--border);margin-bottom:12px">
-              <div class="assign-tab active" data-tab="media" style="padding:8px 16px;font-size:13px;cursor:pointer;border-bottom:2px solid var(--accent);color:var(--accent)">Media (${content.length})</div>
-              <div class="assign-tab" data-tab="widgets" style="padding:8px 16px;font-size:13px;cursor:pointer;border-bottom:2px solid transparent;color:var(--text-secondary)">Widgets (${widgets.length})</div>
-              <div class="assign-tab" data-tab="kiosk" style="padding:8px 16px;font-size:13px;cursor:pointer;border-bottom:2px solid transparent;color:var(--text-secondary)">Kiosk (${kioskPages.length})</div>
+              <div class="assign-tab active" data-tab="media" style="padding:8px 16px;font-size:13px;cursor:pointer;border-bottom:2px solid var(--accent);color:var(--accent)">${t('device.assign.tab.media', { n: content.length })}</div>
+              <div class="assign-tab" data-tab="widgets" style="padding:8px 16px;font-size:13px;cursor:pointer;border-bottom:2px solid transparent;color:var(--text-secondary)">${t('device.assign.tab.widgets', { n: widgets.length })}</div>
+              <div class="assign-tab" data-tab="kiosk" style="padding:8px 16px;font-size:13px;cursor:pointer;border-bottom:2px solid transparent;color:var(--text-secondary)">${t('device.assign.tab.kiosk', { n: kioskPages.length })}</div>
             </div>
             <!-- Media grid -->
             <div class="assign-content-grid" id="assignMedia">
@@ -936,7 +939,7 @@ async function setupPlaylistActions(device) {
                   }
                   <div class="assign-content-item-name">${esc(c.filename)}</div>
                 </div>
-              `).join('') || '<p style="color:var(--text-muted);padding:16px;text-align:center">No media uploaded yet</p>'}
+              `).join('') || `<p style="color:var(--text-muted);padding:16px;text-align:center">${t('device.assign.no_media')}</p>`}
             </div>
             <!-- Widgets grid -->
             <div class="assign-content-grid" id="assignWidgets" style="display:none">
@@ -949,7 +952,7 @@ async function setupPlaylistActions(device) {
                   </div>
                   <div class="assign-content-item-name">${w.name}</div>
                 </div>`;
-              }).join('') || '<p style="color:var(--text-muted);padding:16px;text-align:center">No widgets created yet. <a href="#/widgets" style="color:var(--accent)">Create one</a></p>'}
+              }).join('') || `<p style="color:var(--text-muted);padding:16px;text-align:center">${t('device.assign.no_widgets')} <a href="#/widgets" style="color:var(--accent)">${t('device.assign.create_one')}</a></p>`}
             </div>
             <!-- Kiosk grid -->
             <div class="assign-content-grid" id="assignKiosk" style="display:none">
@@ -958,12 +961,12 @@ async function setupPlaylistActions(device) {
                   <div style="aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;background:var(--bg-primary);font-size:32px">&#128433;</div>
                   <div class="assign-content-item-name">${k.name}</div>
                 </div>
-              `).join('') || '<p style="color:var(--text-muted);padding:16px;text-align:center">No kiosk pages yet. <a href="#/kiosk" style="color:var(--accent)">Create one</a></p>'}
+              `).join('') || `<p style="color:var(--text-muted);padding:16px;text-align:center">${t('device.assign.no_kiosk')} <a href="#/kiosk" style="color:var(--accent)">${t('device.assign.create_one')}</a></p>`}
             </div>
           </div>
           <div class="modal-footer">
-            <button class="btn btn-secondary" id="cancelAssign">Cancel</button>
-            <button class="btn btn-primary" id="confirmAssign">Add Selected</button>
+            <button class="btn btn-secondary" id="cancelAssign">${t('common.cancel')}</button>
+            <button class="btn btn-primary" id="confirmAssign">${t('device.assign.add_selected')}</button>
           </div>
         </div>
       `;
@@ -995,7 +998,7 @@ async function setupPlaylistActions(device) {
       modal.querySelector('#cancelAssign').onclick = () => modal.remove();
       modal.querySelector('#confirmAssign').onclick = async () => {
         if (!selectedId) {
-          showToast('Select something first', 'error');
+          showToast(t('device.assign.select_first'), 'error');
           return;
         }
         const duration = parseInt(modal.querySelector('#assignDuration').value) || 10;
@@ -1011,13 +1014,13 @@ async function setupPlaylistActions(device) {
             const wRes = await fetch('/api/widgets', {
               method: 'POST',
               headers: { ...headers, 'Content-Type': 'application/json' },
-              body: JSON.stringify({ widget_type: 'webpage', name: `Kiosk: ${kioskPages.find(k => k.id === selectedId)?.name || 'Page'}`, config: { url: `${serverUrl}/api/kiosk/${selectedId}/render` } })
+              body: JSON.stringify({ widget_type: 'webpage', name: t('device.assign.kiosk_widget_name', { name: kioskPages.find(k => k.id === selectedId)?.name || 'Page' }), config: { url: `${serverUrl}/api/kiosk/${selectedId}/render` } })
             });
             const widget = await wRes.json();
             await api.addAssignment(device.id, { widget_id: widget.id, duration_sec: 0 });
           }
           modal.remove();
-          showToast('Added to playlist', 'success');
+          showToast(t('device.toast.added_to_playlist'), 'success');
           loadDevice(device.id, 'playlist');
         } catch (err) {
           showToast(err.message, 'error');
@@ -1060,7 +1063,7 @@ function attachRemoveHandlers(device) {
           select.onchange = async () => {
             try {
               await api.updateAssignment(assignmentId, { zone_id: select.value || null });
-              showToast(`Zone updated`, 'success');
+              showToast(t('device.toast.zone_updated'), 'success');
               loadDevice(device.id, 'playlist');
             } catch (err) { showToast(err.message, 'error'); }
           };
@@ -1076,7 +1079,7 @@ function attachRemoveHandlers(device) {
       const currentlyMuted = btn.dataset.muted === '1';
       try {
         await api.updateAssignment(id, { muted: !currentlyMuted });
-        showToast(currentlyMuted ? 'Unmuted' : 'Muted', 'success');
+        showToast(currentlyMuted ? t('device.toast.unmuted') : t('device.toast.muted'), 'success');
         loadDevice(device.id, 'playlist');
       } catch (err) { showToast(err.message, 'error'); }
     });
@@ -1089,7 +1092,7 @@ function attachRemoveHandlers(device) {
       const id = btn.dataset.removeAssignment;
       try {
         await api.deleteAssignment(id);
-        showToast('Content removed from playlist', 'success');
+        showToast(t('device.toast.removed_from_playlist'), 'success');
         loadDevice(device.id, 'playlist');
       } catch (err) {
         showToast(err.message, 'error');
@@ -1140,7 +1143,7 @@ function attachRemoveHandlers(device) {
 
       try {
         await api.reorderAssignments(device.id, newOrder);
-        showToast('Playlist reordered', 'success');
+        showToast(t('device.toast.playlist_reordered'), 'success');
         loadDevice(device.id, 'playlist');
       } catch (err) {
         showToast(err.message, 'error');
@@ -1193,7 +1196,11 @@ function renderUptimeTimeline(uptimeData, statusLog = []) {
   const knownSlots = slotStatus.filter(s => s !== 'unknown').length;
   const onlineSlots = slotStatus.filter(s => s === 'online').length;
   const uptimePct = knownSlots > 0 ? Math.round((onlineSlots / knownSlots) * 100) : 0;
-  if (percentEl) percentEl.textContent = `${uptimePct}% uptime (${knownSlots > 0 ? knownSlots * 15 + 'min tracked' : 'no data'})`;
+  if (percentEl) {
+    percentEl.textContent = knownSlots > 0
+      ? t('device.timeline.uptime_pct_tracked', { pct: uptimePct, n: knownSlots * 15 })
+      : t('device.timeline.uptime_pct_no_data', { pct: uptimePct });
+  }
 
   // Color map
   const colors = {
@@ -1207,7 +1214,7 @@ function renderUptimeTimeline(uptimeData, statusLog = []) {
   timeline.innerHTML = slotStatus.map((status, i) => {
     const time = new Date((dayAgo + i * slotDuration) * 1000);
     const label = time.toLocaleTimeString('en-US', { hour: '2-digit', minute: '2-digit' });
-    const statusLabel = status === 'unknown' ? 'No data' : status.charAt(0).toUpperCase() + status.slice(1);
+    const statusLabel = status === 'unknown' ? t('device.timeline.no_data') : status === 'online' ? t('device.timeline.online') : t('device.timeline.offline');
     return `<div style="flex:1;background:${colors[status]};opacity:${opacities[status]}" title="${label} - ${statusLabel}"></div>`;
   }).join('');
 }
@@ -1218,11 +1225,11 @@ function updateTelemetryDisplay(telemetry) {
     if (el) el.textContent = val;
   };
   if (telemetry.battery_level != null) update('telBattery', telemetry.battery_level + '%');
-  if (telemetry.storage_free_mb) update('telStorage', formatBytes(telemetry.storage_free_mb) + ' free');
+  if (telemetry.storage_free_mb) update('telStorage', t('device.info.size_free', { size: formatBytes(telemetry.storage_free_mb) }));
   if (telemetry.wifi_ssid) update('telWifi', telemetry.wifi_ssid);
   if (telemetry.wifi_rssi) update('telRssi', telemetry.wifi_rssi + ' dBm');
   if (telemetry.uptime_seconds) update('telUptime', formatUptime(telemetry.uptime_seconds));
-  if (telemetry.ram_free_mb) update('telRam', formatBytes(telemetry.ram_free_mb) + ' free');
+  if (telemetry.ram_free_mb) update('telRam', t('device.info.size_free', { size: formatBytes(telemetry.ram_free_mb) }));
   if (telemetry.cpu_usage != null) update('telCpu', telemetry.cpu_usage.toFixed(1) + '%');
 }
 
diff --git a/frontend/js/views/settings.js b/frontend/js/views/settings.js
index f237b04..1720dd1 100644
--- a/frontend/js/views/settings.js
+++ b/frontend/js/views/settings.js
@@ -1,6 +1,6 @@
 import { api } from '../api.js';
 import { showToast } from '../components/toast.js';
-import { getLanguage, setLanguage, getAvailableLanguages } from '../i18n.js';
+import { getLanguage, setLanguage, getAvailableLanguages, t, tn } from '../i18n.js';
 import { esc } from '../utils.js';
 import { resetBranding } from '../branding.js';
 
@@ -17,118 +17,115 @@ export async function render(container) {
   container.innerHTML = `
     <div class="page-header">
       <div>
-        <h1>Settings</h1>
-        <div class="subtitle">Server configuration and setup information</div>
+        <h1>${t('settings.title')}</h1>
+        <div class="subtitle">${t('settings.subtitle')}</div>
       </div>
     </div>
 
     <div class="settings-section">
-      <h3>Account</h3>
+      <h3>${t('settings.account')}</h3>
       <div style="display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px">
-        <div class="form-group"><label>Email</label><input type="email" class="input" value="${esc(user.email || '')}" disabled></div>
-        <div class="form-group"><label>Name</label><input type="text" id="acctName" class="input" value="${esc(user.name || '')}"></div>
+        <div class="form-group"><label>${t('auth.email')}</label><input type="email" class="input" value="${esc(user.email || '')}" disabled></div>
+        <div class="form-group"><label>${t('auth.name')}</label><input type="text" id="acctName" class="input" value="${esc(user.name || '')}"></div>
       </div>
-      <button class="btn btn-secondary btn-sm" id="saveAcctBtn">Save Profile</button>
+      <button class="btn btn-secondary btn-sm" id="saveAcctBtn">${t('settings.save_profile')}</button>
 
       ${user.auth_provider === 'local' ? `
       <div style="border-top:1px solid var(--border);margin-top:20px;padding-top:16px">
-        <h4 style="font-size:14px;margin-bottom:8px">Change Password</h4>
-        <p style="color:var(--text-muted);font-size:12px;margin-bottom:12px">Must be at least 8 characters.</p>
+        <h4 style="font-size:14px;margin-bottom:8px">${t('settings.change_password')}</h4>
+        <p style="color:var(--text-muted);font-size:12px;margin-bottom:12px">${t('settings.password_min_8')}</p>
         <div style="display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px">
-          <div class="form-group"><label>Current Password</label><input type="password" id="acctCurrentPw" class="input" autocomplete="current-password"></div>
-          <div class="form-group"><label>New Password</label><input type="password" id="acctNewPw" class="input" autocomplete="new-password"></div>
-          <div class="form-group"><label>Confirm New Password</label><input type="password" id="acctConfirmPw" class="input" autocomplete="new-password"></div>
+          <div class="form-group"><label>${t('settings.current_password')}</label><input type="password" id="acctCurrentPw" class="input" autocomplete="current-password"></div>
+          <div class="form-group"><label>${t('settings.new_password')}</label><input type="password" id="acctNewPw" class="input" autocomplete="new-password"></div>
+          <div class="form-group"><label>${t('settings.confirm_new_password')}</label><input type="password" id="acctConfirmPw" class="input" autocomplete="new-password"></div>
         </div>
-        <button class="btn btn-primary btn-sm" id="changePwBtn">Change Password</button>
+        <button class="btn btn-primary btn-sm" id="changePwBtn">${t('settings.change_password')}</button>
       </div>
       ` : `
-      <p style="color:var(--text-muted);font-size:12px;margin-top:16px">You sign in via <strong>${esc(user.auth_provider || 'SSO')}</strong>. Manage your password there.</p>
+      <p style="color:var(--text-muted);font-size:12px;margin-top:16px">${t('settings.sso_note', { provider: esc(user.auth_provider || 'SSO') })}</p>
       `}
     </div>
 
     ${isAdmin ? `
     <div class="settings-section">
-      <h3>License</h3>
-      <div id="licenseSection"><p style="color:var(--text-muted);font-size:13px">MIT License - all features included.</p></div>
+      <h3>${t('settings.license')}</h3>
+      <div id="licenseSection"><p style="color:var(--text-muted);font-size:13px">${t('settings.license_mit')}</p></div>
     </div>
 
-    ${isSuperAdmin ? '<p style="font-size:12px;color:var(--text-muted);margin-bottom:12px">Platform admin tools are in the <a href="#/admin" style="color:var(--accent)">Admin</a> page.</p>' : ''}
+    ${isSuperAdmin ? `<p style="font-size:12px;color:var(--text-muted);margin-bottom:12px">${t('settings.platform_admin_link')} <a href="#/admin" style="color:var(--accent)">${t('nav.admin')}</a> ${t('settings.platform_admin_page_suffix')}</p>` : ''}
 
     <div class="settings-section">
-      <h3>User Management</h3>
-      <div id="userManagement"><p style="color:var(--text-muted)">Loading users...</p></div>
+      <h3>${t('settings.user_management')}</h3>
+      <div id="userManagement"><p style="color:var(--text-muted)">${t('settings.loading_users')}</p></div>
     </div>
 
     <div class="settings-section" id="whiteLabelSection">
-      <h3>White Label / Branding</h3>
+      <h3>${t('settings.white_label')}</h3>
       <div id="whiteLabelForm">
-        <p style="color:var(--text-muted);font-size:12px;margin-bottom:16px">Customize the look of your dashboard and player for your clients.</p>
+        <p style="color:var(--text-muted);font-size:12px;margin-bottom:16px">${t('settings.white_label_desc')}</p>
         <div style="display:grid;grid-template-columns:1fr 1fr;gap:12px">
-          <div class="form-group"><label>Brand Name</label><input type="text" id="wlBrandName" class="input" placeholder="ScreenTinker"></div>
-          <div class="form-group"><label>Logo URL</label><input type="text" id="wlLogoUrl" class="input" placeholder="https://..."></div>
-          <div class="form-group"><label>Primary Color</label><input type="color" id="wlPrimaryColor" value="#3B82F6" style="width:100%;height:36px;border:none;cursor:pointer;border-radius:var(--radius)"></div>
-          <div class="form-group"><label>Background Color</label><input type="color" id="wlBgColor" value="#111827" style="width:100%;height:36px;border:none;cursor:pointer;border-radius:var(--radius)"></div>
-          <div class="form-group"><label>Custom Domain</label><input type="text" id="wlDomain" class="input" placeholder="signage.yourcompany.com"></div>
-          <div class="form-group"><label>Favicon URL</label><input type="text" id="wlFavicon" class="input" placeholder="https://..."></div>
+          <div class="form-group"><label>${t('settings.brand_name')}</label><input type="text" id="wlBrandName" class="input" placeholder="ScreenTinker"></div>
+          <div class="form-group"><label>${t('settings.logo_url')}</label><input type="text" id="wlLogoUrl" class="input" placeholder="https://..."></div>
+          <div class="form-group"><label>${t('settings.primary_color')}</label><input type="color" id="wlPrimaryColor" value="#3B82F6" style="width:100%;height:36px;border:none;cursor:pointer;border-radius:var(--radius)"></div>
+          <div class="form-group"><label>${t('settings.bg_color')}</label><input type="color" id="wlBgColor" value="#111827" style="width:100%;height:36px;border:none;cursor:pointer;border-radius:var(--radius)"></div>
+          <div class="form-group"><label>${t('settings.custom_domain')}</label><input type="text" id="wlDomain" class="input" placeholder="signage.yourcompany.com"></div>
+          <div class="form-group"><label>${t('settings.favicon_url')}</label><input type="text" id="wlFavicon" class="input" placeholder="https://..."></div>
         </div>
-        <div class="form-group"><label>Custom CSS (optional)</label><textarea id="wlCustomCss" class="input" rows="3" style="font-family:monospace;font-size:12px" placeholder=":root { --accent: #ff6600; }"></textarea></div>
-        <div class="form-group"><label style="display:flex;align-items:center;gap:8px"><input type="checkbox" id="wlHideBranding"> Hide "ScreenTinker" branding</label></div>
-        <button class="btn btn-primary btn-sm" id="saveWhiteLabelBtn">Save Branding</button>
-        <button class="btn btn-secondary btn-sm" id="previewWhiteLabelBtn" style="margin-left:8px">Preview</button>
+        <div class="form-group"><label>${t('settings.custom_css')}</label><textarea id="wlCustomCss" class="input" rows="3" style="font-family:monospace;font-size:12px" placeholder=":root { --accent: #ff6600; }"></textarea></div>
+        <div class="form-group"><label style="display:flex;align-items:center;gap:8px"><input type="checkbox" id="wlHideBranding"> ${t('settings.hide_branding')}</label></div>
+        <button class="btn btn-primary btn-sm" id="saveWhiteLabelBtn">${t('settings.save_branding')}</button>
+        <button class="btn btn-secondary btn-sm" id="previewWhiteLabelBtn" style="margin-left:8px">${t('settings.preview')}</button>
       </div>
     </div>
     ` : ''}
 
     <div class="settings-section">
-      <h3>Server Information</h3>
+      <h3>${t('settings.server_info')}</h3>
       <div class="info-grid">
         <div class="info-card">
-          <div class="info-card-label">Server URL</div>
+          <div class="info-card-label">${t('settings.server_url')}</div>
           <div class="info-card-value small">${serverUrl}</div>
-          <p style="font-size:11px;color:var(--text-muted);margin-top:4px">Use this URL when setting up the Android app</p>
+          <p style="font-size:11px;color:var(--text-muted);margin-top:4px">${t('settings.server_url_hint')}</p>
         </div>
         <div class="info-card">
-          <div class="info-card-label">API Endpoint</div>
+          <div class="info-card-label">${t('settings.api_endpoint')}</div>
           <div class="info-card-value small">${serverUrl}/api</div>
         </div>
       </div>
     </div>
 
     <div class="settings-section">
-      <h3>Setup Guide</h3>
+      <h3>${t('settings.setup_guide')}</h3>
       <div style="color:var(--text-secondary);font-size:13px;line-height:1.8">
         <ol style="padding-left:20px;list-style:decimal">
-          <li>Install the <strong>ScreenTinker</strong> APK on your Apolosign portable TV via sideloading</li>
-          <li>Open the app and enter this server URL: <code style="background:var(--bg-input);padding:2px 6px;border-radius:4px">${serverUrl}</code></li>
-          <li>The app will display a <strong>6-digit pairing code</strong></li>
-          <li>Click <strong>"Add Display"</strong> on the dashboard and enter the pairing code</li>
-          <li>Upload content in the <strong>Content Library</strong></li>
-          <li>Assign content to the display's <strong>Playlist</strong></li>
+          <li>${t('settings.setup_step_1')}</li>
+          <li>${t('settings.setup_step_2_prefix')} <code style="background:var(--bg-input);padding:2px 6px;border-radius:4px">${serverUrl}</code></li>
+          <li>${t('settings.setup_step_3')}</li>
+          <li>${t('settings.setup_step_4')}</li>
+          <li>${t('settings.setup_step_5')}</li>
+          <li>${t('settings.setup_step_6')}</li>
         </ol>
       </div>
     </div>
 
-    ${isAdmin ? `
-    ` : ''}
-
     <div class="settings-section">
-      <h3>Your Data</h3>
-      <p style="font-size:13px;color:var(--text-secondary);margin-bottom:12px">Export or import your devices, content, layouts, schedules, and all settings. Use this to migrate between cloud and self-hosted instances.</p>
+      <h3>${t('settings.your_data')}</h3>
+      <p style="font-size:13px;color:var(--text-secondary);margin-bottom:12px">${t('settings.your_data_desc')}</p>
       <div style="display:flex;gap:8px;align-items:center;flex-wrap:wrap">
         <button class="btn btn-secondary btn-sm" id="exportDataBtn">
           <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
             <path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4"/><polyline points="7 10 12 15 17 10"/><line x1="12" y1="15" x2="12" y2="3"/>
           </svg>
-          Export My Data
+          ${t('settings.export_my_data')}
         </button>
         <label style="display:flex;align-items:center;gap:4px;font-size:12px;color:var(--text-secondary);cursor:pointer">
-          <input type="checkbox" id="exportIncludeFiles"> Include media files (ZIP)
+          <input type="checkbox" id="exportIncludeFiles"> ${t('settings.include_media_zip')}
         </label>
         <button class="btn btn-secondary btn-sm" id="importDataBtn">
           <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
             <path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4"/><polyline points="17 8 12 3 7 8"/><line x1="12" y1="3" x2="12" y2="15"/>
           </svg>
-          Import Data
+          ${t('settings.import_data')}
         </button>
         <input type="file" id="importFileInput" accept=".json,.zip" style="display:none">
       </div>
@@ -136,23 +133,23 @@ export async function render(container) {
     </div>
 
     <div class="settings-section">
-      <h3>Language</h3>
+      <h3>${t('settings.language')}</h3>
       <select id="langSelect" class="input" style="width:200px;background:var(--bg-input)">
         ${getAvailableLanguages().map(l => `<option value="${l.code}" ${l.code === getLanguage() ? 'selected' : ''}>${l.name}</option>`).join('')}
       </select>
     </div>
 
     <div class="settings-section">
-      <h3>About</h3>
+      <h3>${t('settings.about')}</h3>
       <div style="color:var(--text-secondary);font-size:13px">
         <p><strong>ScreenTinker</strong> v1.4.1</p>
-        <p style="margin-top:4px">Digital signage management system.</p>
+        <p style="margin-top:4px">${t('settings.about_tagline')}</p>
         <p style="margin-top:12px">
-          <a href="/legal/terms.html" target="_blank" style="color:var(--accent);font-size:12px">Terms of Service</a>
+          <a href="/legal/terms.html" target="_blank" style="color:var(--accent);font-size:12px">${t('auth.terms')}</a>
           &nbsp;&middot;&nbsp;
-          <a href="/legal/privacy.html" target="_blank" style="color:var(--accent);font-size:12px">Privacy Policy</a>
+          <a href="/legal/privacy.html" target="_blank" style="color:var(--accent);font-size:12px">${t('auth.privacy')}</a>
           &nbsp;&middot;&nbsp;
-          <a href="/legal/third-party.html" target="_blank" style="color:var(--accent);font-size:12px">Third-Party Licenses</a>
+          <a href="/legal/third-party.html" target="_blank" style="color:var(--accent);font-size:12px">${t('settings.third_party_licenses')}</a>
         </p>
       </div>
     </div>
@@ -177,7 +174,7 @@ export async function render(container) {
         if (res.ok) {
           document.getElementById('supportTokenOutput').value = data.token;
           document.getElementById('supportTokenResult').style.display = 'block';
-          showToast(`Support token generated (valid ${hours}h)`, 'success');
+          showToast(t('settings.toast.support_token_generated', { hours }), 'success');
         } else showToast(data.error, 'error');
       } catch (err) { showToast(err.message, 'error'); }
     });
@@ -204,35 +201,35 @@ export async function render(container) {
     statusEl.style.background = 'var(--bg-secondary)';
     statusEl.style.border = '1px solid var(--border)';
     statusEl.style.color = 'var(--text-secondary)';
-    statusEl.textContent = 'Reading file...';
+    statusEl.textContent = t('settings.import.reading_file');
     try {
       let data;
       if (isZip) {
         // For ZIP, show basic info and skip preview parsing
         data = { format: 'screentinker-export-v1', _isZip: true };
-        statusEl.innerHTML = `ZIP export detected: <strong>${esc(file.name)}</strong> (${(file.size / 1048576).toFixed(1)} MB)<br>Contains data + media files.<br><br><button class="btn btn-primary btn-sm" id="confirmImportBtn">Confirm Import</button> <button class="btn btn-secondary btn-sm" id="cancelImportBtn">Cancel</button>`;
+        statusEl.innerHTML = `${t('settings.import.zip_detected', { name: esc(file.name), size: (file.size / 1048576).toFixed(1) })}<br><br><button class="btn btn-primary btn-sm" id="confirmImportBtn">${t('settings.import.confirm')}</button> <button class="btn btn-secondary btn-sm" id="cancelImportBtn">${t('common.cancel')}</button>`;
       } else {
         const text = await file.text();
         data = JSON.parse(text);
         if (!data.format || !data.format.startsWith('screentinker-export')) {
           statusEl.style.color = 'var(--danger)';
-          statusEl.textContent = 'Invalid file. Must be a ScreenTinker export JSON or ZIP.';
+          statusEl.textContent = t('settings.import.invalid_file');
           return;
         }
         const summary = [
-          data.devices?.length ? `${data.devices.length} devices` : null,
-          data.content?.length ? `${data.content.length} content items` : null,
-          data.widgets?.length ? `${data.widgets.length} widgets` : null,
-          data.layouts?.length ? `${data.layouts.length} layouts` : null,
-          data.schedules?.length ? `${data.schedules.length} schedules` : null,
-          data.video_walls?.length ? `${data.video_walls.length} video walls` : null,
-          data.kiosk_pages?.length ? `${data.kiosk_pages.length} kiosk pages` : null,
+          data.devices?.length ? t('settings.import.summary_devices', { n: data.devices.length }) : null,
+          data.content?.length ? t('settings.import.summary_content', { n: data.content.length }) : null,
+          data.widgets?.length ? t('settings.import.summary_widgets', { n: data.widgets.length }) : null,
+          data.layouts?.length ? t('settings.import.summary_layouts', { n: data.layouts.length }) : null,
+          data.schedules?.length ? t('settings.import.summary_schedules', { n: data.schedules.length }) : null,
+          data.video_walls?.length ? t('settings.import.summary_walls', { n: data.video_walls.length }) : null,
+          data.kiosk_pages?.length ? t('settings.import.summary_kiosk', { n: data.kiosk_pages.length }) : null,
         ].filter(Boolean).join(', ');
-        statusEl.innerHTML = `Found: ${esc(summary) || 'empty export'}.<br>From: ${esc(data.user?.email) || 'unknown'} (exported ${esc(data.exported_at?.split('T')[0]) || 'unknown'})<br><br><button class="btn btn-primary btn-sm" id="confirmImportBtn">Confirm Import</button> <button class="btn btn-secondary btn-sm" id="cancelImportBtn">Cancel</button>`;
+        statusEl.innerHTML = `${t('settings.import.found_summary', { summary: esc(summary) || t('settings.import.empty_export'), email: esc(data.user?.email) || t('common.unknown'), date: esc(data.exported_at?.split('T')[0]) || t('common.unknown') })}<br><br><button class="btn btn-primary btn-sm" id="confirmImportBtn">${t('settings.import.confirm')}</button> <button class="btn btn-secondary btn-sm" id="cancelImportBtn">${t('common.cancel')}</button>`;
       }
       document.getElementById('cancelImportBtn').onclick = () => { statusEl.style.display = 'none'; e.target.value = ''; };
       document.getElementById('confirmImportBtn').onclick = async () => {
-        statusEl.innerHTML = isZip ? 'Uploading and importing... This may take a moment for large files.' : 'Importing...';
+        statusEl.innerHTML = isZip ? t('settings.import.uploading_zip') : t('settings.import.importing');
         try {
           const token = localStorage.getItem('token');
           let res;
@@ -255,28 +252,28 @@ export async function render(container) {
           if (res.ok) {
             const imported = Object.entries(result.stats).filter(([k,v]) => v > 0 && k !== 'files_restored').map(([k,v]) => `${v} ${k}`).join(', ');
             statusEl.style.color = 'var(--success)';
-            let html = `Import complete: ${imported}.`;
+            let html = t('settings.import.complete', { imported });
             if (result.device_pairings?.length) {
-              html += `<br><br><strong>Device Pairing Codes:</strong><br><table style="margin-top:8px;font-size:12px;border-collapse:collapse">` +
+              html += `<br><br><strong>${t('settings.import.pairing_codes_title')}</strong><br><table style="margin-top:8px;font-size:12px;border-collapse:collapse">` +
                 result.device_pairings.map(d => `<tr><td style="padding:4px 12px 4px 0">${d.name}</td><td style="font-family:monospace;font-weight:700;font-size:14px;letter-spacing:2px">${d.pairing_code}</td></tr>`).join('') +
-                `</table><br>Enter these codes on each device to re-link them. All assignments and schedules will be preserved.`;
+                `</table><br>${t('settings.import.pairing_codes_hint')}`;
             }
             html += `<br><br>${(result.notes || []).map(n => '&bull; ' + n).join('<br>')}`;
             statusEl.innerHTML = html;
-            showToast('Data imported successfully', 'success');
+            showToast(t('settings.toast.import_success'), 'success');
           } else {
             statusEl.style.color = 'var(--danger)';
-            statusEl.textContent = result.error || 'Import failed';
+            statusEl.textContent = result.error || t('settings.import.failed');
           }
         } catch (err) {
           statusEl.style.color = 'var(--danger)';
-          statusEl.textContent = 'Import failed: ' + err.message;
+          statusEl.textContent = t('settings.import.failed_with_error', { error: err.message });
         }
         e.target.value = '';
       };
     } catch (err) {
       statusEl.style.color = 'var(--danger)';
-      statusEl.textContent = 'Failed to read file: ' + err.message;
+      statusEl.textContent = t('settings.import.read_failed', { error: err.message });
     }
   });
 
@@ -288,14 +285,14 @@ export async function render(container) {
 
   document.getElementById('saveAcctBtn')?.addEventListener('click', async () => {
     const name = document.getElementById('acctName').value.trim();
-    if (!name) return showToast('Name cannot be empty', 'error');
+    if (!name) return showToast(t('settings.toast.name_required'), 'error');
     const btn = document.getElementById('saveAcctBtn');
     btn.disabled = true;
     try {
       const updated = await api.updateMe({ name });
       const stored = JSON.parse(localStorage.getItem('user') || '{}');
       localStorage.setItem('user', JSON.stringify({ ...stored, ...updated }));
-      showToast('Profile saved', 'success');
+      showToast(t('settings.toast.profile_saved'), 'success');
     } catch (err) {
       showToast(err.message, 'error');
     } finally {
@@ -307,9 +304,9 @@ export async function render(container) {
     const current = document.getElementById('acctCurrentPw').value;
     const next = document.getElementById('acctNewPw').value;
     const confirm = document.getElementById('acctConfirmPw').value;
-    if (!current) return showToast('Enter your current password', 'error');
-    if (next.length < 8) return showToast('New password must be at least 8 characters', 'error');
-    if (next !== confirm) return showToast('New passwords do not match', 'error');
+    if (!current) return showToast(t('settings.toast.current_password_required'), 'error');
+    if (next.length < 8) return showToast(t('settings.toast.new_password_min_8'), 'error');
+    if (next !== confirm) return showToast(t('settings.toast.passwords_dont_match'), 'error');
     const btn = document.getElementById('changePwBtn');
     btn.disabled = true;
     try {
@@ -317,7 +314,7 @@ export async function render(container) {
       document.getElementById('acctCurrentPw').value = '';
       document.getElementById('acctNewPw').value = '';
       document.getElementById('acctConfirmPw').value = '';
-      showToast('Password changed', 'success');
+      showToast(t('settings.toast.password_changed'), 'success');
     } catch (err) {
       showToast(err.message, 'error');
     } finally {
@@ -336,10 +333,10 @@ async function loadWhiteLabel() {
   const section = document.getElementById('whiteLabelSection');
   if (section && user.plan_id !== 'enterprise' && user.role !== 'superadmin') {
     section.innerHTML = `
-      <h3>White Label / Branding</h3>
+      <h3>${t('settings.white_label')}</h3>
       <div style="background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);padding:16px;text-align:center">
-        <p style="color:var(--text-secondary);font-size:14px;margin-bottom:8px">Custom branding is available on the Enterprise plan</p>
-        <a href="#/billing" class="btn btn-secondary btn-sm" style="text-decoration:none">View Plans</a>
+        <p style="color:var(--text-secondary);font-size:14px;margin-bottom:8px">${t('settings.white_label_enterprise_only')}</p>
+        <a href="#/billing" class="btn btn-secondary btn-sm" style="text-decoration:none">${t('settings.view_plans')}</a>
       </div>
     `;
     return;
@@ -376,7 +373,7 @@ async function loadWhiteLabel() {
         })
       });
       await resetBranding();
-      showToast('Branding saved', 'success');
+      showToast(t('settings.toast.branding_saved'), 'success');
     } catch (err) {
       showToast(err.message, 'error');
     }
@@ -387,7 +384,7 @@ async function loadWhiteLabel() {
     const bg = document.getElementById('wlBgColor').value;
     document.documentElement.style.setProperty('--accent', primary);
     document.documentElement.style.setProperty('--bg-primary', bg);
-    showToast('Preview applied (refresh to reset)', 'info');
+    showToast(t('settings.toast.preview_applied'), 'info');
   });
 }
 
@@ -408,11 +405,11 @@ async function loadUsers() {
       <table style="width:100%;border-collapse:collapse;font-size:13px;min-width:520px">
         <thead>
           <tr style="border-bottom:1px solid var(--border);text-align:left">
-            <th style="padding:8px 12px;color:var(--text-muted);font-weight:500">User</th>
-            <th style="padding:8px 12px;color:var(--text-muted);font-weight:500">Auth</th>
-            <th style="padding:8px 12px;color:var(--text-muted);font-weight:500">Role</th>
-            <th style="padding:8px 12px;color:var(--text-muted);font-weight:500">Plan</th>
-            <th style="padding:8px 12px;color:var(--text-muted);font-weight:500">Actions</th>
+            <th style="padding:8px 12px;color:var(--text-muted);font-weight:500">${t('settings.user.col_user')}</th>
+            <th style="padding:8px 12px;color:var(--text-muted);font-weight:500">${t('settings.user.col_auth')}</th>
+            <th style="padding:8px 12px;color:var(--text-muted);font-weight:500">${t('settings.user.col_role')}</th>
+            <th style="padding:8px 12px;color:var(--text-muted);font-weight:500">${t('settings.user.col_plan')}</th>
+            <th style="padding:8px 12px;color:var(--text-muted);font-weight:500">${t('settings.user.col_actions')}</th>
           </tr>
         </thead>
         <tbody>
@@ -434,14 +431,14 @@ async function loadUsers() {
                 </select>
               </td>
               <td style="padding:10px 12px">
-                ${u.id !== currentUser.id ? `<button class="btn btn-danger btn-sm delete-user-btn" data-user-id="${u.id}">Remove</button>` : '<span style="color:var(--text-muted);font-size:11px">You</span>'}
+                ${u.id !== currentUser.id ? `<button class="btn btn-danger btn-sm delete-user-btn" data-user-id="${u.id}">${t('settings.user.remove')}</button>` : `<span style="color:var(--text-muted);font-size:11px">${t('settings.user.you')}</span>`}
               </td>
             </tr>
           `).join('')}
         </tbody>
       </table>
       </div>
-      <p style="color:var(--text-muted);font-size:11px;margin-top:12px">${users.length} user(s) registered</p>
+      <p style="color:var(--text-muted);font-size:11px;margin-top:12px">${tn('settings.user.count', users.length)}</p>
     `;
 
     // Plan change handlers
@@ -451,7 +448,7 @@ async function loadUsers() {
         const planId = select.value;
         try {
           await api.assignPlan(userId, planId);
-          showToast('Plan updated', 'success');
+          showToast(t('settings.toast.plan_updated'), 'success');
         } catch (err) {
           showToast(err.message, 'error');
           loadUsers(); // Revert
@@ -466,7 +463,7 @@ async function loadUsers() {
         if (confirming) {
           try {
             await api.deleteUser(btn.dataset.userId);
-            showToast('User removed', 'success');
+            showToast(t('settings.toast.user_removed'), 'success');
             loadUsers();
           } catch (err) {
             showToast(err.message, 'error');
@@ -474,12 +471,12 @@ async function loadUsers() {
           return;
         }
         confirming = true;
-        btn.textContent = 'Confirm?';
+        btn.textContent = t('settings.user.confirm');
         btn.style.background = 'var(--danger)';
         btn.style.color = 'white';
         setTimeout(() => {
           confirming = false;
-          btn.textContent = 'Remove';
+          btn.textContent = t('settings.user.remove');
           btn.style.background = '';
           btn.style.color = '';
         }, 3000);