/**
 * Internationalization system supporting 11 languages
 */

export type Locale = 'en' | 'fr' | 'es' | 'de' | 'pt' | 'it' | 'ja' | 'zh' | 'ar' | 'ru' | 'hi';

export const LOCALES: { code: Locale; name: string; flag: string; dir?: 'rtl' }[] = [
  { code: 'en', name: 'English', flag: '🇬🇧' },
  { code: 'fr', name: 'Français', flag: '🇫🇷' },
  { code: 'es', name: 'Español', flag: '🇪🇸' },
  { code: 'de', name: 'Deutsch', flag: '🇩🇪' },
  { code: 'pt', name: 'Português', flag: '🇧🇷' },
  { code: 'it', name: 'Italiano', flag: '🇮🇹' },
  { code: 'ja', name: '日本語', flag: '🇯🇵' },
  { code: 'zh', name: '中文', flag: '🇨🇳' },
  { code: 'ar', name: 'العربية', flag: '🇸🇦', dir: 'rtl' },
  { code: 'ru', name: 'Русский', flag: '🇷🇺' },
  { code: 'hi', name: 'हिन्दी', flag: '🇮🇳' },
];

type TranslationKeys = {
  // Navigation
  nav_home: string;
  nav_calendar: string;
  nav_fullmoons: string;
  nav_simulator: string;
  nav_moon3d: string;
  nav_articles: string;
  nav_quiz: string;
  // Hero
  hero_title: string;
  hero_subtitle: string;
  // Next full moon
  next_full_moon: string;
  countdown_days: string;
  countdown_hours: string;
  countdown_minutes: string;
  countdown_seconds: string;
  // Calendar
  calendar_title: string;
  calendar_subtitle: string;
  new_moon: string;
  first_quarter: string;
  full_moon: string;
  last_quarter: string;
  waxing_crescent: string;
  waxing_gibbous: string;
  waning_gibbous: string;
  waning_crescent: string;
  // Full moon names
  fullmoons_title: string;
  fullmoons_subtitle: string;
  // Simulator
  simulator_title: string;
  simulator_subtitle: string;
  simulator_date: string;
  simulator_illumination: string;
  simulator_age: string;
  simulator_days: string;
  simulator_zodiac: string;
  // 3D Moon
  moon3d_title: string;
  moon3d_subtitle: string;
  moon3d_drag: string;
  moon3d_scroll: string;
  // Visibility
  visibility_title: string;
  visibility_subtitle: string;
  // Articles
  articles_title: string;
  articles_subtitle: string;
  // Quiz
  quiz_title: string;
  quiz_subtitle: string;
  quiz_start: string;
  quiz_next: string;
  quiz_results: string;
  quiz_score: string;
  quiz_restart: string;
  quiz_correct: string;
  quiz_wrong: string;
  // Infographics
  infographics_title: string;
  infographics_subtitle: string;
  // PDF
  pdf_download: string;
  pdf_title: string;
  pdf_generated: string;
  pdf_col_month: string;
  pdf_col_date: string;
  pdf_col_time: string;
  pdf_col_name: string;
  // Articles
  articles_read: string;
  // General
  months: string[];
  loading: string;
  current_phase: string;
  explore: string;
  learn_more: string;
  // Footer
  footer_text: string;
  footer_description: string;
  // Culture sections
  culture_native: string;
  culture_celtic: string;
  culture_hindu: string;
  culture_chinese: string;
  effects_title: string;
  effects_human: string;
  effects_animals: string;
  effects_tides: string;
  // Phase descriptions
  phase_desc_new: string;
  phase_desc_waxing_crescent: string;
  phase_desc_first_quarter: string;
  phase_desc_waxing_gibbous: string;
  phase_desc_full: string;
  phase_desc_waning_gibbous: string;
  phase_desc_last_quarter: string;
  phase_desc_waning_crescent: string;
};

const translations: Record<Locale, TranslationKeys> = {
  en: {
    nav_home: 'Home',
    nav_calendar: 'Calendar',
    nav_fullmoons: 'Full Moons',
    nav_simulator: 'Simulator',
    nav_moon3d: '3D Moon',
    nav_articles: 'Articles',
    nav_quiz: 'Quiz',
    hero_title: 'Discover the Magic of the Moon',
    hero_subtitle: 'Explore lunar phases, full moon traditions, and the cosmic rhythms that have guided humanity for millennia.',
    next_full_moon: 'Next Full Moon',
    countdown_days: 'days',
    countdown_hours: 'hours',
    countdown_minutes: 'min',
    countdown_seconds: 'sec',
    calendar_title: 'Lunar Calendar',
    calendar_subtitle: 'All moon phases calculated automatically for the current year with exact times.',
    new_moon: 'New Moon',
    first_quarter: 'First Quarter',
    full_moon: 'Full Moon',
    last_quarter: 'Last Quarter',
    waxing_crescent: 'Waxing Crescent',
    waxing_gibbous: 'Waxing Gibbous',
    waning_gibbous: 'Waning Gibbous',
    waning_crescent: 'Waning Crescent',
    fullmoons_title: 'Traditional Full Moon Names',
    fullmoons_subtitle: 'Each month\'s full moon carries a traditional name rooted in ancient cultures.',
    simulator_title: 'Lunar Phase Simulator',
    simulator_subtitle: 'See how the moon looks on any date you choose.',
    simulator_date: 'Select a date',
    simulator_illumination: 'Illumination',
    simulator_age: 'Moon Age',
    simulator_days: 'days',
    simulator_zodiac: 'Zodiac Sign',
    moon3d_title: '3D Moon Visualization',
    moon3d_subtitle: 'Interactive 3D model — drag to rotate, scroll to zoom.',
    moon3d_drag: 'Drag to rotate',
    moon3d_scroll: 'Scroll to zoom',
    visibility_title: 'Moon Visibility Map',
    visibility_subtitle: 'See where the moon is visible around the world right now.',
    articles_title: 'Lunar Articles',
    articles_subtitle: 'Explore the rich history, mythology, and science of the moon.',
    quiz_title: 'Moon Quiz',
    quiz_subtitle: 'Test your knowledge about the moon and its phases!',
    quiz_start: 'Start Quiz',
    quiz_next: 'Next Question',
    quiz_results: 'Your Results',
    quiz_score: 'Score',
    quiz_restart: 'Restart',
    quiz_correct: 'Correct!',
    quiz_wrong: 'Wrong!',
    infographics_title: 'Lunar Infographics',
    infographics_subtitle: 'Visual data about moon phases, tides, and celestial cycles.',
    pdf_download: 'Download PDF Calendar',
    pdf_title: 'Lunar Calendar',
    pdf_generated: 'Generated',
    pdf_col_month: 'Month',
    pdf_col_date: 'Date',
    pdf_col_time: 'Time',
    pdf_col_name: 'Name',
    articles_read: 'Read Article',
    months: ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'],
    loading: 'Loading...',
    current_phase: 'Current Phase',
    explore: 'Explore',
    learn_more: 'Learn More',
    footer_text: 'Moon Phases — Your complete guide to the lunar cycle',
    footer_description: 'All lunar data calculated automatically using astronomical algorithms.',
    culture_native: 'Native American',
    culture_celtic: 'Celtic',
    culture_hindu: 'Hindu',
    culture_chinese: 'Chinese',
    effects_title: 'Effects',
    effects_human: 'On Humans',
    effects_animals: 'On Animals',
    effects_tides: 'On Tides',
    phase_desc_new: 'The moon is between the Earth and the Sun, invisible from Earth. A time for new beginnings.',
    phase_desc_waxing_crescent: 'A sliver of light appears. Time for setting intentions and planting seeds.',
    phase_desc_first_quarter: 'Half the moon is illuminated. A time for making decisions and taking action.',
    phase_desc_waxing_gibbous: 'More than half illuminated and growing. Time to refine and adjust plans.',
    phase_desc_full: 'The moon is fully illuminated. Peak energy, completion, and celebration.',
    phase_desc_waning_gibbous: 'Light begins to fade. Time for gratitude and sharing wisdom.',
    phase_desc_last_quarter: 'Half illuminated and waning. Time for release and forgiveness.',
    phase_desc_waning_crescent: 'A fading sliver. Time for rest, reflection, and surrender.',
  },
  fr: {
    nav_home: 'Accueil',
    nav_calendar: 'Calendrier',
    nav_fullmoons: 'Pleines Lunes',
    nav_simulator: 'Simulateur',
    nav_moon3d: 'Lune 3D',
    nav_articles: 'Articles',
    nav_quiz: 'Quiz',
    hero_title: 'Découvrez la Magie de la Lune',
    hero_subtitle: 'Explorez les phases lunaires, les traditions des pleines lunes et les rythmes cosmiques qui guident l\'humanité depuis des millénaires.',
    next_full_moon: 'Prochaine Pleine Lune',
    countdown_days: 'jours',
    countdown_hours: 'heures',
    countdown_minutes: 'min',
    countdown_seconds: 'sec',
    calendar_title: 'Calendrier Lunaire',
    calendar_subtitle: 'Toutes les phases lunaires calculées automatiquement pour l\'année en cours avec les heures exactes.',
    new_moon: 'Nouvelle Lune',
    first_quarter: 'Premier Quartier',
    full_moon: 'Pleine Lune',
    last_quarter: 'Dernier Quartier',
    waxing_crescent: 'Croissant Croissant',
    waxing_gibbous: 'Gibbeuse Croissante',
    waning_gibbous: 'Gibbeuse Décroissante',
    waning_crescent: 'Croissant Décroissant',
    fullmoons_title: 'Noms Traditionnels des Pleines Lunes',
    fullmoons_subtitle: 'Chaque pleine lune mensuelle porte un nom traditionnel issu de cultures anciennes.',
    simulator_title: 'Simulateur de Phases Lunaires',
    simulator_subtitle: 'Voyez à quoi ressemble la lune à la date de votre choix.',
    simulator_date: 'Choisir une date',
    simulator_illumination: 'Illumination',
    simulator_age: 'Âge de la Lune',
    simulator_days: 'jours',
    simulator_zodiac: 'Signe du Zodiaque',
    moon3d_title: 'Visualisation 3D de la Lune',
    moon3d_subtitle: 'Modèle 3D interactif — glissez pour tourner, scrollez pour zoomer.',
    moon3d_drag: 'Glissez pour tourner',
    moon3d_scroll: 'Scrollez pour zoomer',
    visibility_title: 'Carte de Visibilité Lunaire',
    visibility_subtitle: 'Voyez où la lune est visible dans le monde en ce moment.',
    articles_title: 'Articles Lunaires',
    articles_subtitle: 'Explorez la riche histoire, la mythologie et la science de la lune.',
    quiz_title: 'Quiz Lunaire',
    quiz_subtitle: 'Testez vos connaissances sur la lune et ses phases !',
    quiz_start: 'Commencer le Quiz',
    quiz_next: 'Question Suivante',
    quiz_results: 'Vos Résultats',
    quiz_score: 'Score',
    quiz_restart: 'Recommencer',
    quiz_correct: 'Correct !',
    quiz_wrong: 'Faux !',
    infographics_title: 'Infographies Lunaires',
    infographics_subtitle: 'Données visuelles sur les phases lunaires, les marées et les cycles célestes.',
    pdf_download: 'Télécharger le Calendrier PDF',
    pdf_title: 'Calendrier Lunaire',
    pdf_generated: 'Généré le',
    pdf_col_month: 'Mois',
    pdf_col_date: 'Date',
    pdf_col_time: 'Heure',
    pdf_col_name: 'Nom',
    articles_read: 'Lire l\'article',
    months: ['Janvier', 'Février', 'Mars', 'Avril', 'Mai', 'Juin', 'Juillet', 'Août', 'Septembre', 'Octobre', 'Novembre', 'Décembre'],
    loading: 'Chargement...',
    current_phase: 'Phase Actuelle',
    explore: 'Explorer',
    learn_more: 'En savoir plus',
    footer_text: 'Phases de la Lune — Votre guide complet du cycle lunaire',
    footer_description: 'Toutes les données lunaires calculées automatiquement par algorithmes astronomiques.',
    culture_native: 'Amérindien',
    culture_celtic: 'Celtique',
    culture_hindu: 'Hindou',
    culture_chinese: 'Chinois',
    effects_title: 'Effets',
    effects_human: 'Sur l\'Homme',
    effects_animals: 'Sur les Animaux',
    effects_tides: 'Sur les Marées',
    phase_desc_new: 'La lune est entre la Terre et le Soleil, invisible. C\'est le moment des nouveaux départs.',
    phase_desc_waxing_crescent: 'Un éclat de lumière apparaît. Temps de fixer ses intentions.',
    phase_desc_first_quarter: 'La moitié de la lune est éclairée. Temps de prendre des décisions.',
    phase_desc_waxing_gibbous: 'Plus de la moitié éclairée et croissante. Temps d\'affiner ses plans.',
    phase_desc_full: 'La lune est entièrement éclairée. Énergie maximale, accomplissement.',
    phase_desc_waning_gibbous: 'La lumière commence à décliner. Temps de gratitude.',
    phase_desc_last_quarter: 'Moitié éclairée et décroissante. Temps de lâcher prise.',
    phase_desc_waning_crescent: 'Un croissant qui s\'efface. Temps de repos et de réflexion.',
  },
  es: {
    nav_home: 'Inicio',
    nav_calendar: 'Calendario',
    nav_fullmoons: 'Lunas Llenas',
    nav_simulator: 'Simulador',
    nav_moon3d: 'Luna 3D',
    nav_articles: 'Artículos',
    nav_quiz: 'Quiz',
    hero_title: 'Descubre la Magia de la Luna',
    hero_subtitle: 'Explora las fases lunares, las tradiciones de la luna llena y los ritmos cósmicos que han guiado a la humanidad durante milenios.',
    next_full_moon: 'Próxima Luna Llena',
    countdown_days: 'días',
    countdown_hours: 'horas',
    countdown_minutes: 'min',
    countdown_seconds: 'seg',
    calendar_title: 'Calendario Lunar',
    calendar_subtitle: 'Todas las fases lunares calculadas automáticamente con horas exactas.',
    new_moon: 'Luna Nueva',
    first_quarter: 'Cuarto Creciente',
    full_moon: 'Luna Llena',
    last_quarter: 'Cuarto Menguante',
    waxing_crescent: 'Creciente',
    waxing_gibbous: 'Gibosa Creciente',
    waning_gibbous: 'Gibosa Menguante',
    waning_crescent: 'Menguante',
    fullmoons_title: 'Nombres Tradicionales de las Lunas Llenas',
    fullmoons_subtitle: 'Cada luna llena mensual tiene un nombre tradicional de culturas antiguas.',
    simulator_title: 'Simulador de Fases Lunares',
    simulator_subtitle: 'Observa cómo se ve la luna en cualquier fecha.',
    simulator_date: 'Selecciona una fecha',
    simulator_illumination: 'Iluminación',
    simulator_age: 'Edad de la Luna',
    simulator_days: 'días',
    simulator_zodiac: 'Signo Zodiacal',
    moon3d_title: 'Visualización 3D de la Luna',
    moon3d_subtitle: 'Modelo interactivo — arrastra para rotar, desplaza para zoom.',
    moon3d_drag: 'Arrastra para rotar',
    moon3d_scroll: 'Desplaza para zoom',
    visibility_title: 'Mapa de Visibilidad Lunar',
    visibility_subtitle: 'Observa dónde es visible la luna en el mundo ahora.',
    articles_title: 'Artículos Lunares',
    articles_subtitle: 'Explora la historia, mitología y ciencia de la luna.',
    quiz_title: 'Quiz Lunar',
    quiz_subtitle: '¡Pon a prueba tus conocimientos sobre la luna!',
    quiz_start: 'Iniciar Quiz',
    quiz_next: 'Siguiente Pregunta',
    quiz_results: 'Tus Resultados',
    quiz_score: 'Puntuación',
    quiz_restart: 'Reiniciar',
    quiz_correct: '¡Correcto!',
    quiz_wrong: '¡Incorrecto!',
    infographics_title: 'Infografías Lunares',
    infographics_subtitle: 'Datos visuales sobre fases lunares, mareas y ciclos celestes.',
    pdf_download: 'Descargar Calendario PDF',
    pdf_title: 'Calendario Lunar',
    pdf_generated: 'Generado',
    pdf_col_month: 'Mes',
    pdf_col_date: 'Fecha',
    pdf_col_time: 'Hora',
    pdf_col_name: 'Nombre',
    articles_read: 'Leer artículo',
    months: ['Enero', 'Febrero', 'Marzo', 'Abril', 'Mayo', 'Junio', 'Julio', 'Agosto', 'Septiembre', 'Octubre', 'Noviembre', 'Diciembre'],
    loading: 'Cargando...',
    current_phase: 'Fase Actual',
    explore: 'Explorar',
    learn_more: 'Saber más',
    footer_text: 'Fases de la Luna — Tu guía completa del ciclo lunar',
    footer_description: 'Datos lunares calculados automáticamente con algoritmos astronómicos.',
    culture_native: 'Nativo Americano',
    culture_celtic: 'Celta',
    culture_hindu: 'Hindú',
    culture_chinese: 'Chino',
    effects_title: 'Efectos',
    effects_human: 'En Humanos',
    effects_animals: 'En Animales',
    effects_tides: 'En Mareas',
    phase_desc_new: 'La luna está entre la Tierra y el Sol, invisible. Momento para nuevos comienzos.',
    phase_desc_waxing_crescent: 'Aparece un brillo de luz. Momento para fijar intenciones.',
    phase_desc_first_quarter: 'La mitad de la luna está iluminada. Momento de tomar decisiones.',
    phase_desc_waxing_gibbous: 'Más de la mitad iluminada. Momento de refinar planes.',
    phase_desc_full: 'La luna está completamente iluminada. Energía máxima y celebración.',
    phase_desc_waning_gibbous: 'La luz comienza a disminuir. Momento de gratitud.',
    phase_desc_last_quarter: 'Mitad iluminada y menguante. Momento de dejar ir.',
    phase_desc_waning_crescent: 'Un creciente que se desvanece. Momento de descanso.',
  },
  de: {
    nav_home: 'Start',
    nav_calendar: 'Kalender',
    nav_fullmoons: 'Vollmonde',
    nav_simulator: 'Simulator',
    nav_moon3d: '3D Mond',
    nav_articles: 'Artikel',
    nav_quiz: 'Quiz',
    hero_title: 'Entdecke die Magie des Mondes',
    hero_subtitle: 'Erkunde Mondphasen, Vollmond-Traditionen und kosmische Rhythmen, die die Menschheit seit Jahrtausenden leiten.',
    next_full_moon: 'Nächster Vollmond',
    countdown_days: 'Tage',
    countdown_hours: 'Stunden',
    countdown_minutes: 'Min',
    countdown_seconds: 'Sek',
    calendar_title: 'Mondkalender',
    calendar_subtitle: 'Alle Mondphasen automatisch berechnet mit genauen Zeiten.',
    new_moon: 'Neumond',
    first_quarter: 'Erstes Viertel',
    full_moon: 'Vollmond',
    last_quarter: 'Letztes Viertel',
    waxing_crescent: 'Zunehmende Sichel',
    waxing_gibbous: 'Zunehmender Mond',
    waning_gibbous: 'Abnehmender Mond',
    waning_crescent: 'Abnehmende Sichel',
    fullmoons_title: 'Traditionelle Vollmond-Namen',
    fullmoons_subtitle: 'Jeder monatliche Vollmond trägt einen traditionellen Namen.',
    simulator_title: 'Mondphasen-Simulator',
    simulator_subtitle: 'Sehen Sie, wie der Mond an jedem Datum aussieht.',
    simulator_date: 'Datum wählen',
    simulator_illumination: 'Beleuchtung',
    simulator_age: 'Mondalter',
    simulator_days: 'Tage',
    simulator_zodiac: 'Sternzeichen',
    moon3d_title: '3D Mond-Visualisierung',
    moon3d_subtitle: 'Interaktives 3D-Modell — ziehen zum Drehen, scrollen zum Zoomen.',
    moon3d_drag: 'Ziehen zum Drehen',
    moon3d_scroll: 'Scrollen zum Zoomen',
    visibility_title: 'Mond-Sichtbarkeitskarte',
    visibility_subtitle: 'Sehen Sie, wo der Mond weltweit sichtbar ist.',
    articles_title: 'Mond-Artikel',
    articles_subtitle: 'Erkunde Geschichte, Mythologie und Wissenschaft des Mondes.',
    quiz_title: 'Mond-Quiz',
    quiz_subtitle: 'Teste dein Wissen über den Mond!',
    quiz_start: 'Quiz starten',
    quiz_next: 'Nächste Frage',
    quiz_results: 'Deine Ergebnisse',
    quiz_score: 'Punkte',
    quiz_restart: 'Neustart',
    quiz_correct: 'Richtig!',
    quiz_wrong: 'Falsch!',
    infographics_title: 'Mond-Infografiken',
    infographics_subtitle: 'Visuelle Daten über Mondphasen, Gezeiten und Zyklen.',
    pdf_download: 'PDF-Kalender herunterladen',
    pdf_title: 'Mondkalender',
    pdf_generated: 'Erstellt am',
    pdf_col_month: 'Monat',
    pdf_col_date: 'Datum',
    pdf_col_time: 'Zeit',
    pdf_col_name: 'Name',
    articles_read: 'Artikel lesen',
    months: ['Januar', 'Februar', 'März', 'April', 'Mai', 'Juni', 'Juli', 'August', 'September', 'Oktober', 'November', 'Dezember'],
    loading: 'Laden...',
    current_phase: 'Aktuelle Phase',
    explore: 'Erkunden',
    learn_more: 'Mehr erfahren',
    footer_text: 'Mondphasen — Ihr kompletter Führer zum Mondzyklus',
    footer_description: 'Alle Monddaten automatisch durch astronomische Algorithmen berechnet.',
    culture_native: 'Indianisch',
    culture_celtic: 'Keltisch',
    culture_hindu: 'Hindu',
    culture_chinese: 'Chinesisch',
    effects_title: 'Auswirkungen',
    effects_human: 'Auf Menschen',
    effects_animals: 'Auf Tiere',
    effects_tides: 'Auf Gezeiten',
    phase_desc_new: 'Der Mond steht zwischen Erde und Sonne. Zeit für Neuanfänge.',
    phase_desc_waxing_crescent: 'Ein Lichtschimmer erscheint. Zeit für Absichten.',
    phase_desc_first_quarter: 'Die Hälfte des Mondes ist beleuchtet. Entscheidungszeit.',
    phase_desc_waxing_gibbous: 'Mehr als die Hälfte beleuchtet. Zeit zum Verfeinern.',
    phase_desc_full: 'Der Mond ist voll beleuchtet. Höchste Energie.',
    phase_desc_waning_gibbous: 'Das Licht beginnt zu schwinden. Zeit der Dankbarkeit.',
    phase_desc_last_quarter: 'Halb beleuchtet und abnehmend. Zeit des Loslassens.',
    phase_desc_waning_crescent: 'Eine schwindende Sichel. Ruhezeit.',
  },
  pt: {
    nav_home: 'Início', nav_calendar: 'Calendário', nav_fullmoons: 'Luas Cheias', nav_simulator: 'Simulador',
    nav_moon3d: 'Lua 3D', nav_articles: 'Artigos', nav_quiz: 'Quiz',
    hero_title: 'Descubra a Magia da Lua', hero_subtitle: 'Explore fases lunares e tradições.',
    next_full_moon: 'Próxima Lua Cheia', countdown_days: 'dias', countdown_hours: 'horas', countdown_minutes: 'min', countdown_seconds: 'seg',
    calendar_title: 'Calendário Lunar', calendar_subtitle: 'Fases calculadas automaticamente.',
    new_moon: 'Lua Nova', first_quarter: 'Quarto Crescente', full_moon: 'Lua Cheia', last_quarter: 'Quarto Minguante',
    waxing_crescent: 'Crescente', waxing_gibbous: 'Gibosa Crescente', waning_gibbous: 'Gibosa Minguante', waning_crescent: 'Minguante',
    fullmoons_title: 'Nomes Tradicionais', fullmoons_subtitle: 'Cada lua cheia tem um nome tradicional.',
    simulator_title: 'Simulador de Fases', simulator_subtitle: 'Veja a lua em qualquer data.',
    simulator_date: 'Selecione a data', simulator_illumination: 'Iluminação', simulator_age: 'Idade da Lua', simulator_days: 'dias', simulator_zodiac: 'Signo',
    moon3d_title: 'Lua 3D', moon3d_subtitle: 'Modelo interativo.', moon3d_drag: 'Arraste para girar', moon3d_scroll: 'Scroll para zoom',
    visibility_title: 'Visibilidade Lunar', visibility_subtitle: 'Onde a lua é visível agora.',
    articles_title: 'Artigos', articles_subtitle: 'História e ciência da lua.',
    quiz_title: 'Quiz Lunar', quiz_subtitle: 'Teste seus conhecimentos!',
    quiz_start: 'Iniciar', quiz_next: 'Próxima', quiz_results: 'Resultados', quiz_score: 'Pontos', quiz_restart: 'Reiniciar',
    quiz_correct: 'Correto!', quiz_wrong: 'Errado!',
    infographics_title: 'Infográficos', infographics_subtitle: 'Dados visuais sobre a lua.',
    pdf_download: 'Baixar PDF', pdf_title: 'Calendário Lunar',
    pdf_generated: 'Gerado em', pdf_col_month: 'Mês', pdf_col_date: 'Data', pdf_col_time: 'Hora', pdf_col_name: 'Nome', articles_read: 'Ler artigo',
    months: ['Janeiro','Fevereiro','Março','Abril','Maio','Junho','Julho','Agosto','Setembro','Outubro','Novembro','Dezembro'],
    loading: 'Carregando...', current_phase: 'Fase Atual', explore: 'Explorar', learn_more: 'Saiba mais',
    footer_text: 'Fases da Lua — Seu guia completo', footer_description: 'Dados calculados automaticamente.',
    culture_native: 'Nativo Americano', culture_celtic: 'Celta', culture_hindu: 'Hindu', culture_chinese: 'Chinês',
    effects_title: 'Efeitos', effects_human: 'Nos Humanos', effects_animals: 'Nos Animais', effects_tides: 'Nas Marés',
    phase_desc_new: 'Lua invisível. Novos começos.', phase_desc_waxing_crescent: 'Brilho aparece. Intenções.',
    phase_desc_first_quarter: 'Metade iluminada. Decisões.', phase_desc_waxing_gibbous: 'Mais da metade. Ajustar planos.',
    phase_desc_full: 'Totalmente iluminada. Energia máxima.', phase_desc_waning_gibbous: 'Luz diminui. Gratidão.',
    phase_desc_last_quarter: 'Metade e minguante. Liberação.', phase_desc_waning_crescent: 'Crescente sumindo. Descanso.',
  },
  it: {
    nav_home: 'Home', nav_calendar: 'Calendario', nav_fullmoons: 'Lune Piene', nav_simulator: 'Simulatore',
    nav_moon3d: 'Luna 3D', nav_articles: 'Articoli', nav_quiz: 'Quiz',
    hero_title: 'Scopri la Magia della Luna', hero_subtitle: 'Esplora fasi lunari e tradizioni.',
    next_full_moon: 'Prossima Luna Piena', countdown_days: 'giorni', countdown_hours: 'ore', countdown_minutes: 'min', countdown_seconds: 'sec',
    calendar_title: 'Calendario Lunare', calendar_subtitle: 'Fasi calcolate automaticamente.',
    new_moon: 'Luna Nuova', first_quarter: 'Primo Quarto', full_moon: 'Luna Piena', last_quarter: 'Ultimo Quarto',
    waxing_crescent: 'Crescente', waxing_gibbous: 'Gibbosa Crescente', waning_gibbous: 'Gibbosa Calante', waning_crescent: 'Calante',
    fullmoons_title: 'Nomi Tradizionali', fullmoons_subtitle: 'Ogni luna piena ha un nome tradizionale.',
    simulator_title: 'Simulatore di Fasi', simulator_subtitle: 'Vedi la luna in qualsiasi data.',
    simulator_date: 'Seleziona data', simulator_illumination: 'Illuminazione', simulator_age: 'Età della Luna', simulator_days: 'giorni', simulator_zodiac: 'Segno',
    moon3d_title: 'Luna 3D', moon3d_subtitle: 'Modello interattivo.', moon3d_drag: 'Trascina per ruotare', moon3d_scroll: 'Scorri per zoom',
    visibility_title: 'Visibilità Lunare', visibility_subtitle: 'Dove la luna è visibile ora.',
    articles_title: 'Articoli', articles_subtitle: 'Storia e scienza della luna.',
    quiz_title: 'Quiz Lunare', quiz_subtitle: 'Metti alla prova le tue conoscenze!',
    quiz_start: 'Inizia', quiz_next: 'Prossima', quiz_results: 'Risultati', quiz_score: 'Punteggio', quiz_restart: 'Ricomincia',
    quiz_correct: 'Corretto!', quiz_wrong: 'Sbagliato!',
    infographics_title: 'Infografiche', infographics_subtitle: 'Dati visivi sulla luna.',
    pdf_download: 'Scarica PDF', pdf_title: 'Calendario Lunare',
    pdf_generated: 'Generato il', pdf_col_month: 'Mese', pdf_col_date: 'Data', pdf_col_time: 'Ora', pdf_col_name: 'Nome', articles_read: 'Leggi articolo',
    months: ['Gennaio','Febbraio','Marzo','Aprile','Maggio','Giugno','Luglio','Agosto','Settembre','Ottobre','Novembre','Dicembre'],
    loading: 'Caricamento...', current_phase: 'Fase Attuale', explore: 'Esplora', learn_more: 'Scopri di più',
    footer_text: 'Fasi della Luna — La tua guida completa', footer_description: 'Dati calcolati automaticamente.',
    culture_native: 'Nativi Americani', culture_celtic: 'Celtico', culture_hindu: 'Indù', culture_chinese: 'Cinese',
    effects_title: 'Effetti', effects_human: 'Sugli Umani', effects_animals: 'Sugli Animali', effects_tides: 'Sulle Maree',
    phase_desc_new: 'Luna invisibile. Nuovi inizi.', phase_desc_waxing_crescent: 'Brilla una luce. Intenzioni.',
    phase_desc_first_quarter: 'Metà illuminata. Decisioni.', phase_desc_waxing_gibbous: 'Più della metà. Affinare.',
    phase_desc_full: 'Completamente illuminata. Massima energia.', phase_desc_waning_gibbous: 'Luce cala. Gratitudine.',
    phase_desc_last_quarter: 'Metà calante. Lasciare andare.', phase_desc_waning_crescent: 'Falce che svanisce. Riposo.',
  },
  ja: {
    nav_home: 'ホーム', nav_calendar: 'カレンダー', nav_fullmoons: '満月', nav_simulator: 'シミュレータ',
    nav_moon3d: '3D月', nav_articles: '記事', nav_quiz: 'クイズ',
    hero_title: '月の魔法を発見しよう', hero_subtitle: '月の満ち欠け、満月の伝統、宇宙のリズムを探索。',
    next_full_moon: '次の満月', countdown_days: '日', countdown_hours: '時間', countdown_minutes: '分', countdown_seconds: '秒',
    calendar_title: '月暦', calendar_subtitle: '全ての月相を自動計算。',
    new_moon: '新月', first_quarter: '上弦の月', full_moon: '満月', last_quarter: '下弦の月',
    waxing_crescent: '三日月', waxing_gibbous: '十三夜月', waning_gibbous: '更待月', waning_crescent: '二十六夜',
    fullmoons_title: '伝統的な満月の名前', fullmoons_subtitle: '毎月の満月には伝統的な名前があります。',
    simulator_title: '月相シミュレータ', simulator_subtitle: '任意の日の月を確認。',
    simulator_date: '日付を選択', simulator_illumination: '輝面比', simulator_age: '月齢', simulator_days: '日', simulator_zodiac: '星座',
    moon3d_title: '3D月', moon3d_subtitle: 'インタラクティブ3Dモデル。', moon3d_drag: 'ドラッグで回転', moon3d_scroll: 'スクロールでズーム',
    visibility_title: '月の可視性マップ', visibility_subtitle: '世界中で月が見える場所。',
    articles_title: '記事', articles_subtitle: '月の歴史と科学。',
    quiz_title: '月クイズ', quiz_subtitle: '月の知識をテスト！',
    quiz_start: '開始', quiz_next: '次へ', quiz_results: '結果', quiz_score: 'スコア', quiz_restart: '再開',
    quiz_correct: '正解！', quiz_wrong: '不正解！',
    infographics_title: 'インフォグラフィック', infographics_subtitle: '月のデータを視覚化。',
    pdf_download: 'PDFダウンロード', pdf_title: '月暦',
    pdf_generated: '生成日', pdf_col_month: '月', pdf_col_date: '日付', pdf_col_time: '時間', pdf_col_name: '名前', articles_read: '記事を読む',
    months: ['1月','2月','3月','4月','5月','6月','7月','8月','9月','10月','11月','12月'],
    loading: '読み込み中...', current_phase: '現在の月相', explore: '探索', learn_more: '詳しく',
    footer_text: '月の満ち欠け — 完全ガイド', footer_description: '天文アルゴリズムで自動計算。',
    culture_native: 'ネイティブアメリカン', culture_celtic: 'ケルト', culture_hindu: 'ヒンドゥー', culture_chinese: '中国',
    effects_title: '影響', effects_human: '人間への影響', effects_animals: '動物への影響', effects_tides: '潮汐への影響',
    phase_desc_new: '月は見えません。新しい始まり。', phase_desc_waxing_crescent: '光が現れる。意図を設定。',
    phase_desc_first_quarter: '半分が照らされる。決断の時。', phase_desc_waxing_gibbous: '半分以上。計画を調整。',
    phase_desc_full: '完全に照らされる。最大エネルギー。', phase_desc_waning_gibbous: '光が減少。感謝の時。',
    phase_desc_last_quarter: '半分で減少中。手放す時。', phase_desc_waning_crescent: '消えゆく三日月。休息。',
  },
  zh: {
    nav_home: '首页', nav_calendar: '日历', nav_fullmoons: '满月', nav_simulator: '模拟器',
    nav_moon3d: '3D月球', nav_articles: '文章', nav_quiz: '测验',
    hero_title: '探索月亮的魔力', hero_subtitle: '探索月相、满月传统和宇宙节律。',
    next_full_moon: '下一个满月', countdown_days: '天', countdown_hours: '小时', countdown_minutes: '分', countdown_seconds: '秒',
    calendar_title: '月历', calendar_subtitle: '自动计算所有月相。',
    new_moon: '新月', first_quarter: '上弦月', full_moon: '满月', last_quarter: '下弦月',
    waxing_crescent: '娥眉月', waxing_gibbous: '盈凸月', waning_gibbous: '亏凸月', waning_crescent: '残月',
    fullmoons_title: '传统满月名称', fullmoons_subtitle: '每个月的满月都有传统名称。',
    simulator_title: '月相模拟器', simulator_subtitle: '查看任意日期的月亮。',
    simulator_date: '选择日期', simulator_illumination: '照明度', simulator_age: '月龄', simulator_days: '天', simulator_zodiac: '星座',
    moon3d_title: '3D月球', moon3d_subtitle: '交互式3D模型。', moon3d_drag: '拖动旋转', moon3d_scroll: '滚动缩放',
    visibility_title: '月球可见性地图', visibility_subtitle: '查看月球在全球的可见位置。',
    articles_title: '文章', articles_subtitle: '月球的历史和科学。',
    quiz_title: '月球测验', quiz_subtitle: '测试你的月球知识！',
    quiz_start: '开始', quiz_next: '下一题', quiz_results: '结果', quiz_score: '得分', quiz_restart: '重新开始',
    quiz_correct: '正确！', quiz_wrong: '错误！',
    infographics_title: '信息图', infographics_subtitle: '月球数据可视化。',
    pdf_download: '下载PDF', pdf_title: '月历',
    pdf_generated: '生成于', pdf_col_month: '月份', pdf_col_date: '日期', pdf_col_time: '时间', pdf_col_name: '名称', articles_read: '阅读文章',
    months: ['一月','二月','三月','四月','五月','六月','七月','八月','九月','十月','十一月','十二月'],
    loading: '加载中...', current_phase: '当前月相', explore: '探索', learn_more: '了解更多',
    footer_text: '月相 — 完整指南', footer_description: '天文算法自动计算。',
    culture_native: '美洲原住民', culture_celtic: '凯尔特', culture_hindu: '印度教', culture_chinese: '中国',
    effects_title: '影响', effects_human: '对人类', effects_animals: '对动物', effects_tides: '对潮汐',
    phase_desc_new: '月亮不可见。新的开始。', phase_desc_waxing_crescent: '光芒出现。设定意图。',
    phase_desc_first_quarter: '一半被照亮。做出决定。', phase_desc_waxing_gibbous: '超过一半。调整计划。',
    phase_desc_full: '完全被照亮。最大能量。', phase_desc_waning_gibbous: '光线减弱。感恩时刻。',
    phase_desc_last_quarter: '一半减弱。放下。', phase_desc_waning_crescent: '消逝的月牙。休息。',
  },
  ar: {
    nav_home: 'الرئيسية', nav_calendar: 'التقويم', nav_fullmoons: 'البدر', nav_simulator: 'المحاكي',
    nav_moon3d: 'القمر ثلاثي الأبعاد', nav_articles: 'مقالات', nav_quiz: 'اختبار',
    hero_title: 'اكتشف سحر القمر', hero_subtitle: 'استكشف أطوار القمر والتقاليد.',
    next_full_moon: 'البدر القادم', countdown_days: 'أيام', countdown_hours: 'ساعات', countdown_minutes: 'دقائق', countdown_seconds: 'ثوان',
    calendar_title: 'التقويم القمري', calendar_subtitle: 'جميع أطوار القمر محسوبة تلقائياً.',
    new_moon: 'محاق', first_quarter: 'تربيع أول', full_moon: 'بدر', last_quarter: 'تربيع أخير',
    waxing_crescent: 'هلال متزايد', waxing_gibbous: 'أحدب متزايد', waning_gibbous: 'أحدب متناقص', waning_crescent: 'هلال متناقص',
    fullmoons_title: 'أسماء البدر التقليدية', fullmoons_subtitle: 'لكل بدر شهري اسم تقليدي.',
    simulator_title: 'محاكي أطوار القمر', simulator_subtitle: 'شاهد القمر في أي تاريخ.',
    simulator_date: 'اختر تاريخاً', simulator_illumination: 'الإضاءة', simulator_age: 'عمر القمر', simulator_days: 'أيام', simulator_zodiac: 'البرج',
    moon3d_title: 'القمر ثلاثي الأبعاد', moon3d_subtitle: 'نموذج تفاعلي.', moon3d_drag: 'اسحب للتدوير', moon3d_scroll: 'مرر للتكبير',
    visibility_title: 'خريطة رؤية القمر', visibility_subtitle: 'أين القمر مرئي الآن.',
    articles_title: 'مقالات', articles_subtitle: 'تاريخ وعلم القمر.',
    quiz_title: 'اختبار القمر', quiz_subtitle: 'اختبر معلوماتك!',
    quiz_start: 'ابدأ', quiz_next: 'التالي', quiz_results: 'النتائج', quiz_score: 'النقاط', quiz_restart: 'إعادة',
    quiz_correct: 'صحيح!', quiz_wrong: 'خطأ!',
    infographics_title: 'رسوم بيانية', infographics_subtitle: 'بيانات مرئية عن القمر.',
    pdf_download: 'تحميل PDF', pdf_title: 'التقويم القمري',
    pdf_generated: 'تم الإنشاء', pdf_col_month: 'الشهر', pdf_col_date: 'التاريخ', pdf_col_time: 'الوقت', pdf_col_name: 'الاسم', articles_read: 'اقرأ المقال',
    months: ['يناير','فبراير','مارس','أبريل','مايو','يونيو','يوليو','أغسطس','سبتمبر','أكتوبر','نوفمبر','ديسمبر'],
    loading: 'جاري التحميل...', current_phase: 'الطور الحالي', explore: 'استكشف', learn_more: 'اعرف المزيد',
    footer_text: 'أطوار القمر — دليلك الكامل', footer_description: 'محسوبة تلقائياً.',
    culture_native: 'أمريكي أصلي', culture_celtic: 'كلتي', culture_hindu: 'هندوسي', culture_chinese: 'صيني',
    effects_title: 'التأثيرات', effects_human: 'على البشر', effects_animals: 'على الحيوانات', effects_tides: 'على المد والجزر',
    phase_desc_new: 'القمر غير مرئي. بدايات جديدة.', phase_desc_waxing_crescent: 'يظهر ضوء. وقت النوايا.',
    phase_desc_first_quarter: 'نصف مضاء. وقت القرارات.', phase_desc_waxing_gibbous: 'أكثر من النصف. تعديل الخطط.',
    phase_desc_full: 'مضاء بالكامل. أقصى طاقة.', phase_desc_waning_gibbous: 'يتراجع الضوء. وقت الامتنان.',
    phase_desc_last_quarter: 'نصف متناقص. وقت التحرر.', phase_desc_waning_crescent: 'هلال يتلاشى. راحة.',
  },
  ru: {
    nav_home: 'Главная', nav_calendar: 'Календарь', nav_fullmoons: 'Полнолуния', nav_simulator: 'Симулятор',
    nav_moon3d: '3D Луна', nav_articles: 'Статьи', nav_quiz: 'Викторина',
    hero_title: 'Откройте Магию Луны', hero_subtitle: 'Исследуйте фазы Луны и традиции.',
    next_full_moon: 'Следующее Полнолуние', countdown_days: 'дней', countdown_hours: 'часов', countdown_minutes: 'мин', countdown_seconds: 'сек',
    calendar_title: 'Лунный Календарь', calendar_subtitle: 'Все фазы рассчитаны автоматически.',
    new_moon: 'Новолуние', first_quarter: 'Первая четверть', full_moon: 'Полнолуние', last_quarter: 'Последняя четверть',
    waxing_crescent: 'Растущий серп', waxing_gibbous: 'Растущая Луна', waning_gibbous: 'Убывающая Луна', waning_crescent: 'Убывающий серп',
    fullmoons_title: 'Традиционные Названия', fullmoons_subtitle: 'У каждого полнолуния есть традиционное название.',
    simulator_title: 'Симулятор Фаз', simulator_subtitle: 'Посмотрите Луну на любую дату.',
    simulator_date: 'Выберите дату', simulator_illumination: 'Освещённость', simulator_age: 'Возраст Луны', simulator_days: 'дней', simulator_zodiac: 'Знак зодиака',
    moon3d_title: '3D Луна', moon3d_subtitle: 'Интерактивная модель.', moon3d_drag: 'Тяните для вращения', moon3d_scroll: 'Прокрутка для масштаба',
    visibility_title: 'Карта Видимости', visibility_subtitle: 'Где Луна видна сейчас.',
    articles_title: 'Статьи', articles_subtitle: 'История и наука о Луне.',
    quiz_title: 'Лунная Викторина', quiz_subtitle: 'Проверьте свои знания!',
    quiz_start: 'Начать', quiz_next: 'Далее', quiz_results: 'Результаты', quiz_score: 'Баллы', quiz_restart: 'Заново',
    quiz_correct: 'Верно!', quiz_wrong: 'Неверно!',
    infographics_title: 'Инфографика', infographics_subtitle: 'Визуальные данные о Луне.',
    pdf_download: 'Скачать PDF', pdf_title: 'Лунный Календарь',
    pdf_generated: 'Создано', pdf_col_month: 'Месяц', pdf_col_date: 'Дата', pdf_col_time: 'Время', pdf_col_name: 'Название', articles_read: 'Читать статью',
    months: ['Январь','Февраль','Март','Апрель','Май','Июнь','Июль','Август','Сентябрь','Октябрь','Ноябрь','Декабрь'],
    loading: 'Загрузка...', current_phase: 'Текущая фаза', explore: 'Исследовать', learn_more: 'Подробнее',
    footer_text: 'Фазы Луны — Полное руководство', footer_description: 'Рассчитано автоматически.',
    culture_native: 'Индейский', culture_celtic: 'Кельтский', culture_hindu: 'Индуистский', culture_chinese: 'Китайский',
    effects_title: 'Влияние', effects_human: 'На людей', effects_animals: 'На животных', effects_tides: 'На приливы',
    phase_desc_new: 'Луна не видна. Новые начинания.', phase_desc_waxing_crescent: 'Появляется свет. Время намерений.',
    phase_desc_first_quarter: 'Половина освещена. Время решений.', phase_desc_waxing_gibbous: 'Больше половины. Корректировка.',
    phase_desc_full: 'Полностью освещена. Максимальная энергия.', phase_desc_waning_gibbous: 'Свет убывает. Благодарность.',
    phase_desc_last_quarter: 'Половина убывает. Отпускание.', phase_desc_waning_crescent: 'Тающий серп. Отдых.',
  },
  hi: {
    nav_home: 'होम', nav_calendar: 'कैलेंडर', nav_fullmoons: 'पूर्णिमा', nav_simulator: 'सिम्युलेटर',
    nav_moon3d: '3D चंद्रमा', nav_articles: 'लेख', nav_quiz: 'क्विज़',
    hero_title: 'चंद्रमा का जादू खोजें', hero_subtitle: 'चंद्र कलाओं और परंपराओं का अन्वेषण करें।',
    next_full_moon: 'अगली पूर्णिमा', countdown_days: 'दिन', countdown_hours: 'घंटे', countdown_minutes: 'मिनट', countdown_seconds: 'सेकंड',
    calendar_title: 'चंद्र कैलेंडर', calendar_subtitle: 'सभी चंद्र कलाएं स्वचालित रूप से गणना।',
    new_moon: 'अमावस्या', first_quarter: 'शुक्ल पक्ष', full_moon: 'पूर्णिमा', last_quarter: 'कृष्ण पक्ष',
    waxing_crescent: 'बढ़ता हिलाल', waxing_gibbous: 'बढ़ता चंद्र', waning_gibbous: 'घटता चंद्र', waning_crescent: 'घटता हिलाल',
    fullmoons_title: 'पारंपरिक नाम', fullmoons_subtitle: 'हर पूर्णिमा का एक पारंपरिक नाम है।',
    simulator_title: 'चंद्र कला सिम्युलेटर', simulator_subtitle: 'किसी भी तारीख का चंद्रमा देखें।',
    simulator_date: 'तारीख चुनें', simulator_illumination: 'प्रकाश', simulator_age: 'चंद्र आयु', simulator_days: 'दिन', simulator_zodiac: 'राशि',
    moon3d_title: '3D चंद्रमा', moon3d_subtitle: 'इंटरैक्टिव मॉडल।', moon3d_drag: 'घुमाने के लिए खींचें', moon3d_scroll: 'ज़ूम के लिए स्क्रॉल',
    visibility_title: 'दृश्यता मानचित्र', visibility_subtitle: 'चंद्रमा कहाँ दिखाई दे रहा है।',
    articles_title: 'लेख', articles_subtitle: 'चंद्रमा का इतिहास और विज्ञान।',
    quiz_title: 'चंद्र क्विज़', quiz_subtitle: 'अपना ज्ञान परखें!',
    quiz_start: 'शुरू करें', quiz_next: 'अगला', quiz_results: 'परिणाम', quiz_score: 'अंक', quiz_restart: 'पुनः आरंभ',
    quiz_correct: 'सही!', quiz_wrong: 'गलत!',
    infographics_title: 'इन्फ़ोग्राफ़िक्स', infographics_subtitle: 'दृश्य डेटा।',
    pdf_download: 'PDF डाउनलोड', pdf_title: 'चंद्र कैलेंडर',
    pdf_generated: 'बनाया गया', pdf_col_month: 'महीना', pdf_col_date: 'तारीख', pdf_col_time: 'समय', pdf_col_name: 'नाम', articles_read: 'लेख पढ़ें',
    months: ['जनवरी','फरवरी','मार्च','अप्रैल','मई','जून','जुलाई','अगस्त','सितंबर','अक्टूबर','नवंबर','दिसंबर'],
    loading: 'लोड हो रहा है...', current_phase: 'वर्तमान कला', explore: 'अन्वेषण', learn_more: 'और जानें',
    footer_text: 'चंद्र कलाएं — पूर्ण गाइड', footer_description: 'स्वचालित रूप से गणना।',
    culture_native: 'मूल अमेरिकी', culture_celtic: 'केल्टिक', culture_hindu: 'हिंदू', culture_chinese: 'चीनी',
    effects_title: 'प्रभाव', effects_human: 'मनुष्यों पर', effects_animals: 'जानवरों पर', effects_tides: 'ज्वार पर',
    phase_desc_new: 'चंद्रमा अदृश्य। नई शुरुआत।', phase_desc_waxing_crescent: 'प्रकाश दिखता है। इरादे तय करें।',
    phase_desc_first_quarter: 'आधा प्रकाशित। निर्णय का समय।', phase_desc_waxing_gibbous: 'आधे से अधिक। योजना समायोजन।',
    phase_desc_full: 'पूर्ण प्रकाशित। अधिकतम ऊर्जा।', phase_desc_waning_gibbous: 'प्रकाश कम। कृतज्ञता।',
    phase_desc_last_quarter: 'आधा घटता। छोड़ना।', phase_desc_waning_crescent: 'मिटता हिलाल। विश्राम।',
  },
};

export function t(key: keyof TranslationKeys, locale: Locale = 'en'): string | string[] {
  return translations[locale]?.[key] ?? translations.en[key] ?? key;
}

export function ts(key: keyof TranslationKeys, locale: Locale = 'en'): string {
  const val = t(key, locale);
  return Array.isArray(val) ? val.join(', ') : val;
}

export function getMonths(locale: Locale = 'en'): string[] {
  return translations[locale]?.months ?? translations.en.months;
}

export function detectLocale(): Locale {
  if (typeof navigator === 'undefined') return 'en';
  const lang = navigator.language?.slice(0, 2) as Locale;
  return translations[lang] ? lang : 'en';
}