feat: 7 languages — EN, DE, FR, IT, ES, PT, RU

- Full translations for all UI strings in 7 languages
- Language picker shows native names (Français, Italiano, Español, Português, Русский)
- Auto-detection via navigator.languages
- Cyrillic font subset for Russian (Inter, 19KB)
- Footer shared across all languages (untranslated links)

i18n.js

@@ -2,58 +2,18 @@ var I18n = (function () {
   'use strict';
 
   var languages = {
-    de: { name: 'Deutsch', flag: 'DE' },
+    en: { name: 'English' },
-    en: { name: 'English', flag: 'EN' }
+    de: { name: 'Deutsch' },
+    fr: { name: 'Français' },
+    it: { name: 'Italiano' },
+    es: { name: 'Español' },
+    pt: { name: 'Português' },
+    ru: { name: 'Русский' }
   };
 
+  var footer = 'Open Source &middot; No Backend &middot; No KYC &middot; <a href="https://gitea.schmidt.eco/schmidt1024/xmrpay.link" target="_blank">Source</a> &middot; <a href="http://mc6wfeaqc7oijgdcudrr5zsotmwok3jzk3tu2uezzyjisn7nzzjjizyd.onion" title="Tor Hidden Service">Onion</a>';
+
   var translations = {
-    de: {
-      subtitle: 'Monero-Zahlungsanforderung in Sekunden',
-      label_addr: 'XMR-Adresse',
-      placeholder_addr: '8...',
-      label_amount: 'Betrag',
-      label_desc: 'Beschreibung (optional)',
-      placeholder_desc: 'z.B. Rechnung #42, Freelance-Arbeit...',
-      label_timer: 'Zahlungsfrist (optional)',
-      days: 'Tage',
-      placeholder_timer_custom: 'Tage',
-      btn_generate: 'Zahlungsanforderung erstellen',
-      btn_open_wallet: 'In Wallet öffnen',
-      btn_copy_addr: 'Adresse kopieren',
-      btn_download_pdf: 'PDF Rechnung',
-      pdf_title: 'Zahlungsanforderung',
-      pdf_address: 'XMR-Adresse',
-      pdf_amount: 'Betrag',
-      pdf_desc: 'Beschreibung',
-      pdf_deadline: 'Zahlungsfrist',
-      pdf_deadline_days: '{d} Tage',
-      pdf_date: 'Datum',
-      pdf_scan_qr: 'QR-Code scannen zum Bezahlen',
-      pdf_footer: 'Erstellt mit xmrpay.link — Keine Registrierung, kein KYC',
-      qr_hint: 'Klick auf QR zum Speichern',
-      footer: 'Open Source &middot; Kein Backend &middot; Kein KYC &middot; <a href="https://gitea.schmidt.eco/schmidt1024/xmrpay.link" target="_blank">Source</a> &middot; <a href="http://mc6wfeaqc7oijgdcudrr5zsotmwok3jzk3tu2uezzyjisn7nzzjjizyd.onion" title="Tor Hidden Service">Onion</a>',
-      aria_currency: 'Währung',
-      label_uri_details: 'Monero-URI anzeigen',
-      label_share_link: 'Teilbarer Link',
-      btn_new_request: 'Neue Zahlungsanforderung',
-      toast_copied: 'Kopiert!',
-      countdown_expired: 'Zahlungsfrist abgelaufen',
-      countdown_remaining_days: 'Zahlungsfrist: {d} Tage, {h} Std.',
-      countdown_remaining_hours: 'Zahlungsfrist: {h}:{m} Std.',
-      rates_offline: 'Kurse nicht verfügbar — nur XMR-Betrag möglich',
-      btn_prove_payment: 'Zahlung nachweisen',
-      label_tx_hash: 'Transaction ID (TX Hash)',
-      placeholder_tx_hash: '64 Hex-Zeichen...',
-      label_tx_key: 'Transaction Key (TX Key)',
-      placeholder_tx_key: '64 Hex-Zeichen...',
-      btn_verify_proof: 'Zahlung verifizieren',
-      proof_verifying: 'Verifiziere...',
-      proof_verified: 'Zahlung bestätigt: {amount} XMR',
-      proof_no_match: 'Kein passender Output gefunden — TX Key oder Adresse stimmt nicht',
-      proof_tx_not_found: 'Transaktion nicht gefunden',
-      proof_error: 'Fehler bei der Verifizierung',
-      status_paid: 'Bezahlt'
-    },
     en: {
       subtitle: 'Monero payment request in seconds',
       label_addr: 'XMR Address',
@@ -76,11 +36,10 @@ var I18n = (function () {
       pdf_deadline_days: '{d} days',
       pdf_date: 'Date',
       pdf_scan_qr: 'Scan QR code to pay',
-      pdf_footer: 'Created with xmrpay.link — No registration, no KYC',
+      pdf_footer: 'Created with xmrpay.link',
       qr_hint: 'Click QR to save',
-      footer: 'Open Source &middot; No Backend &middot; No KYC &middot; <a href="https://gitea.schmidt.eco/schmidt1024/xmrpay.link" target="_blank">Source</a> &middot; <a href="http://mc6wfeaqc7oijgdcudrr5zsotmwok3jzk3tu2uezzyjisn7nzzjjizyd.onion" title="Tor Hidden Service">Onion</a>',
+      footer: footer,
       aria_currency: 'Currency',
-      label_uri_details: 'Show Monero URI',
       label_share_link: 'Shareable link',
       btn_new_request: 'New payment request',
       toast_copied: 'Copied!',
@@ -96,21 +55,297 @@ var I18n = (function () {
       btn_verify_proof: 'Verify payment',
       proof_verifying: 'Verifying...',
       proof_verified: 'Payment confirmed: {amount} XMR',
-      proof_no_match: 'No matching output found — TX key or address mismatch',
+      proof_no_match: 'No matching output — TX key or address mismatch',
       proof_tx_not_found: 'Transaction not found',
       proof_error: 'Verification error',
       status_paid: 'Paid'
+    },
+    de: {
+      subtitle: 'Monero-Zahlungsanforderung in Sekunden',
+      label_addr: 'XMR-Adresse',
+      placeholder_addr: '8...',
+      label_amount: 'Betrag',
+      label_desc: 'Beschreibung (optional)',
+      placeholder_desc: 'z.B. Rechnung #42, Freelance-Arbeit...',
+      label_timer: 'Zahlungsfrist (optional)',
+      days: 'Tage',
+      placeholder_timer_custom: 'Tage',
+      btn_generate: 'Zahlungsanforderung erstellen',
+      btn_open_wallet: 'In Wallet öffnen',
+      btn_copy_addr: 'Adresse kopieren',
+      btn_download_pdf: 'PDF Rechnung',
+      pdf_title: 'Zahlungsanforderung',
+      pdf_address: 'XMR-Adresse',
+      pdf_amount: 'Betrag',
+      pdf_desc: 'Beschreibung',
+      pdf_deadline: 'Zahlungsfrist',
+      pdf_deadline_days: '{d} Tage',
+      pdf_date: 'Datum',
+      pdf_scan_qr: 'QR-Code scannen zum Bezahlen',
+      pdf_footer: 'Erstellt mit xmrpay.link',
+      qr_hint: 'Klick auf QR zum Speichern',
+      footer: footer,
+      aria_currency: 'Währung',
+      label_share_link: 'Teilbarer Link',
+      btn_new_request: 'Neue Zahlungsanforderung',
+      toast_copied: 'Kopiert!',
+      countdown_expired: 'Zahlungsfrist abgelaufen',
+      countdown_remaining_days: 'Zahlungsfrist: {d} Tage, {h} Std.',
+      countdown_remaining_hours: 'Zahlungsfrist: {h}:{m} Std.',
+      rates_offline: 'Kurse nicht verfügbar — nur XMR-Betrag möglich',
+      btn_prove_payment: 'Zahlung nachweisen',
+      label_tx_hash: 'Transaction ID (TX Hash)',
+      placeholder_tx_hash: '64 Hex-Zeichen...',
+      label_tx_key: 'Transaction Key (TX Key)',
+      placeholder_tx_key: '64 Hex-Zeichen...',
+      btn_verify_proof: 'Zahlung verifizieren',
+      proof_verifying: 'Verifiziere...',
+      proof_verified: 'Zahlung bestätigt: {amount} XMR',
+      proof_no_match: 'Kein passender Output — TX Key oder Adresse stimmt nicht',
+      proof_tx_not_found: 'Transaktion nicht gefunden',
+      proof_error: 'Fehler bei der Verifizierung',
+      status_paid: 'Bezahlt'
+    },
+    fr: {
+      subtitle: 'Demande de paiement Monero en quelques secondes',
+      label_addr: 'Adresse XMR',
+      placeholder_addr: '8...',
+      label_amount: 'Montant',
+      label_desc: 'Description (facultatif)',
+      placeholder_desc: 'ex. Facture #42, travail freelance...',
+      label_timer: 'Date limite de paiement (facultatif)',
+      days: 'jours',
+      placeholder_timer_custom: 'Jours',
+      btn_generate: 'Créer une demande de paiement',
+      btn_open_wallet: 'Ouvrir dans le wallet',
+      btn_copy_addr: 'Copier l\'adresse',
+      btn_download_pdf: 'Facture PDF',
+      pdf_title: 'Demande de paiement',
+      pdf_address: 'Adresse XMR',
+      pdf_amount: 'Montant',
+      pdf_desc: 'Description',
+      pdf_deadline: 'Date limite de paiement',
+      pdf_deadline_days: '{d} jours',
+      pdf_date: 'Date',
+      pdf_scan_qr: 'Scanner le QR code pour payer',
+      pdf_footer: 'Créé avec xmrpay.link',
+      qr_hint: 'Cliquez sur le QR pour enregistrer',
+      footer: footer,
+      aria_currency: 'Devise',
+      label_share_link: 'Lien partageable',
+      btn_new_request: 'Nouvelle demande de paiement',
+      toast_copied: 'Copié !',
+      countdown_expired: 'Délai de paiement expiré',
+      countdown_remaining_days: 'Délai : {d} jours, {h} h',
+      countdown_remaining_hours: 'Délai : {h}:{m} h',
+      rates_offline: 'Taux indisponibles — montant en XMR uniquement',
+      btn_prove_payment: 'Prouver le paiement',
+      label_tx_hash: 'Transaction ID (TX Hash)',
+      placeholder_tx_hash: '64 caractères hexadécimaux...',
+      label_tx_key: 'Transaction Key (TX Key)',
+      placeholder_tx_key: '64 caractères hexadécimaux...',
+      btn_verify_proof: 'Vérifier le paiement',
+      proof_verifying: 'Vérification...',
+      proof_verified: 'Paiement confirmé : {amount} XMR',
+      proof_no_match: 'Aucun output correspondant — TX Key ou adresse incorrecte',
+      proof_tx_not_found: 'Transaction introuvable',
+      proof_error: 'Erreur de vérification',
+      status_paid: 'Payé'
+    },
+    it: {
+      subtitle: 'Richiesta di pagamento Monero in pochi secondi',
+      label_addr: 'Indirizzo XMR',
+      placeholder_addr: '8...',
+      label_amount: 'Importo',
+      label_desc: 'Descrizione (facoltativo)',
+      placeholder_desc: 'es. Fattura #42, lavoro freelance...',
+      label_timer: 'Scadenza pagamento (facoltativo)',
+      days: 'giorni',
+      placeholder_timer_custom: 'Giorni',
+      btn_generate: 'Crea richiesta di pagamento',
+      btn_open_wallet: 'Apri nel wallet',
+      btn_copy_addr: 'Copia indirizzo',
+      btn_download_pdf: 'Fattura PDF',
+      pdf_title: 'Richiesta di pagamento',
+      pdf_address: 'Indirizzo XMR',
+      pdf_amount: 'Importo',
+      pdf_desc: 'Descrizione',
+      pdf_deadline: 'Scadenza pagamento',
+      pdf_deadline_days: '{d} giorni',
+      pdf_date: 'Data',
+      pdf_scan_qr: 'Scansiona il QR per pagare',
+      pdf_footer: 'Creato con xmrpay.link',
+      qr_hint: 'Clicca sul QR per salvare',
+      footer: footer,
+      aria_currency: 'Valuta',
+      label_share_link: 'Link condivisibile',
+      btn_new_request: 'Nuova richiesta di pagamento',
+      toast_copied: 'Copiato!',
+      countdown_expired: 'Scadenza pagamento superata',
+      countdown_remaining_days: 'Scadenza: {d} giorni, {h} ore',
+      countdown_remaining_hours: 'Scadenza: {h}:{m} ore',
+      rates_offline: 'Tassi non disponibili — solo importo in XMR',
+      btn_prove_payment: 'Dimostra pagamento',
+      label_tx_hash: 'Transaction ID (TX Hash)',
+      placeholder_tx_hash: '64 caratteri esadecimali...',
+      label_tx_key: 'Transaction Key (TX Key)',
+      placeholder_tx_key: '64 caratteri esadecimali...',
+      btn_verify_proof: 'Verifica pagamento',
+      proof_verifying: 'Verifica in corso...',
+      proof_verified: 'Pagamento confermato: {amount} XMR',
+      proof_no_match: 'Nessun output corrispondente — TX Key o indirizzo errato',
+      proof_tx_not_found: 'Transazione non trovata',
+      proof_error: 'Errore di verifica',
+      status_paid: 'Pagato'
+    },
+    es: {
+      subtitle: 'Solicitud de pago Monero en segundos',
+      label_addr: 'Dirección XMR',
+      placeholder_addr: '8...',
+      label_amount: 'Monto',
+      label_desc: 'Descripción (opcional)',
+      placeholder_desc: 'ej. Factura #42, trabajo freelance...',
+      label_timer: 'Plazo de pago (opcional)',
+      days: 'días',
+      placeholder_timer_custom: 'Días',
+      btn_generate: 'Crear solicitud de pago',
+      btn_open_wallet: 'Abrir en wallet',
+      btn_copy_addr: 'Copiar dirección',
+      btn_download_pdf: 'Factura PDF',
+      pdf_title: 'Solicitud de pago',
+      pdf_address: 'Dirección XMR',
+      pdf_amount: 'Monto',
+      pdf_desc: 'Descripción',
+      pdf_deadline: 'Plazo de pago',
+      pdf_deadline_days: '{d} días',
+      pdf_date: 'Fecha',
+      pdf_scan_qr: 'Escanear QR para pagar',
+      pdf_footer: 'Creado con xmrpay.link',
+      qr_hint: 'Clic en QR para guardar',
+      footer: footer,
+      aria_currency: 'Moneda',
+      label_share_link: 'Enlace compartible',
+      btn_new_request: 'Nueva solicitud de pago',
+      toast_copied: '¡Copiado!',
+      countdown_expired: 'Plazo de pago vencido',
+      countdown_remaining_days: 'Plazo: {d} días, {h} h',
+      countdown_remaining_hours: 'Plazo: {h}:{m} h',
+      rates_offline: 'Tasas no disponibles — solo monto en XMR',
+      btn_prove_payment: 'Demostrar pago',
+      label_tx_hash: 'Transaction ID (TX Hash)',
+      placeholder_tx_hash: '64 caracteres hexadecimales...',
+      label_tx_key: 'Transaction Key (TX Key)',
+      placeholder_tx_key: '64 caracteres hexadecimales...',
+      btn_verify_proof: 'Verificar pago',
+      proof_verifying: 'Verificando...',
+      proof_verified: 'Pago confirmado: {amount} XMR',
+      proof_no_match: 'Ningún output coincidente — TX Key o dirección incorrecta',
+      proof_tx_not_found: 'Transacción no encontrada',
+      proof_error: 'Error de verificación',
+      status_paid: 'Pagado'
+    },
+    pt: {
+      subtitle: 'Pedido de pagamento Monero em segundos',
+      label_addr: 'Endereço XMR',
+      placeholder_addr: '8...',
+      label_amount: 'Valor',
+      label_desc: 'Descrição (opcional)',
+      placeholder_desc: 'ex. Fatura #42, trabalho freelance...',
+      label_timer: 'Prazo de pagamento (opcional)',
+      days: 'dias',
+      placeholder_timer_custom: 'Dias',
+      btn_generate: 'Criar pedido de pagamento',
+      btn_open_wallet: 'Abrir na wallet',
+      btn_copy_addr: 'Copiar endereço',
+      btn_download_pdf: 'Fatura PDF',
+      pdf_title: 'Pedido de pagamento',
+      pdf_address: 'Endereço XMR',
+      pdf_amount: 'Valor',
+      pdf_desc: 'Descrição',
+      pdf_deadline: 'Prazo de pagamento',
+      pdf_deadline_days: '{d} dias',
+      pdf_date: 'Data',
+      pdf_scan_qr: 'Digitalizar QR para pagar',
+      pdf_footer: 'Criado com xmrpay.link',
+      qr_hint: 'Clique no QR para guardar',
+      footer: footer,
+      aria_currency: 'Moeda',
+      label_share_link: 'Link partilhável',
+      btn_new_request: 'Novo pedido de pagamento',
+      toast_copied: 'Copiado!',
+      countdown_expired: 'Prazo de pagamento expirado',
+      countdown_remaining_days: 'Prazo: {d} dias, {h} h',
+      countdown_remaining_hours: 'Prazo: {h}:{m} h',
+      rates_offline: 'Taxas indisponíveis — apenas valor em XMR',
+      btn_prove_payment: 'Comprovar pagamento',
+      label_tx_hash: 'Transaction ID (TX Hash)',
+      placeholder_tx_hash: '64 caracteres hexadecimais...',
+      label_tx_key: 'Transaction Key (TX Key)',
+      placeholder_tx_key: '64 caracteres hexadecimais...',
+      btn_verify_proof: 'Verificar pagamento',
+      proof_verifying: 'A verificar...',
+      proof_verified: 'Pagamento confirmado: {amount} XMR',
+      proof_no_match: 'Nenhum output correspondente — TX Key ou endereço incorreto',
+      proof_tx_not_found: 'Transação não encontrada',
+      proof_error: 'Erro de verificação',
+      status_paid: 'Pago'
+    },
+    ru: {
+      subtitle: 'Запрос на оплату Monero за секунды',
+      label_addr: 'Адрес XMR',
+      placeholder_addr: '8...',
+      label_amount: 'Сумма',
+      label_desc: 'Описание (необязательно)',
+      placeholder_desc: 'напр. Счёт #42, фриланс...',
+      label_timer: 'Срок оплаты (необязательно)',
+      days: 'дней',
+      placeholder_timer_custom: 'Дней',
+      btn_generate: 'Создать запрос на оплату',
+      btn_open_wallet: 'Открыть в кошельке',
+      btn_copy_addr: 'Копировать адрес',
+      btn_download_pdf: 'PDF счёт',
+      pdf_title: 'Запрос на оплату',
+      pdf_address: 'Адрес XMR',
+      pdf_amount: 'Сумма',
+      pdf_desc: 'Описание',
+      pdf_deadline: 'Срок оплаты',
+      pdf_deadline_days: '{d} дней',
+      pdf_date: 'Дата',
+      pdf_scan_qr: 'Сканируйте QR для оплаты',
+      pdf_footer: 'Создано с помощью xmrpay.link',
+      qr_hint: 'Нажмите на QR для сохранения',
+      footer: footer,
+      aria_currency: 'Валюта',
+      label_share_link: 'Ссылка для отправки',
+      btn_new_request: 'Новый запрос на оплату',
+      toast_copied: 'Скопировано!',
+      countdown_expired: 'Срок оплаты истёк',
+      countdown_remaining_days: 'Срок: {d} дней, {h} ч',
+      countdown_remaining_hours: 'Срок: {h}:{m} ч',
+      rates_offline: 'Курсы недоступны — только сумма в XMR',
+      btn_prove_payment: 'Подтвердить оплату',
+      label_tx_hash: 'Transaction ID (TX Hash)',
+      placeholder_tx_hash: '64 шестнадцатеричных символа...',
+      label_tx_key: 'Transaction Key (TX Key)',
+      placeholder_tx_key: '64 шестнадцатеричных символа...',
+      btn_verify_proof: 'Проверить оплату',
+      proof_verifying: 'Проверка...',
+      proof_verified: 'Оплата подтверждена: {amount} XMR',
+      proof_no_match: 'Соответствующий выход не найден — неверный TX Key или адрес',
+      proof_tx_not_found: 'Транзакция не найдена',
+      proof_error: 'Ошибка проверки',
+      status_paid: 'Оплачено'
     }
   };
 
-  var currentLang = 'de';
+  var currentLang = 'en';
 
   function detectLang() {
     var saved = null;
     try { saved = localStorage.getItem('xmrpay_lang'); } catch (e) {}
     if (saved && translations[saved]) return saved;
 
-    var navLangs = navigator.languages || [navigator.language || 'de'];
+    var navLangs = navigator.languages || [navigator.language || 'en'];
     for (var i = 0; i < navLangs.length; i++) {
       var code = navLangs[i].substring(0, 2).toLowerCase();
       if (translations[code]) return code;
@@ -143,7 +378,7 @@ var I18n = (function () {
 
     // Update toggle label
     var cur = document.getElementById('langCurrent');
-    if (cur) cur.textContent = languages[lang].flag;
+    if (cur) cur.textContent = languages[lang].name;
 
     // Update dropdown active state
     document.querySelectorAll('.lang-option').forEach(function (btn) {

index.html

@@ -112,7 +112,7 @@
         <path d="M2 12h20"/>
         <path d="M12 2a15.3 15.3 0 0 1 4 10 15.3 15.3 0 0 1-4 10 15.3 15.3 0 0 1-4-10A15.3 15.3 0 0 1 12 2z"/>
       </svg>
-      <span id="langCurrent">DE</span>
+      <span id="langCurrent">English</span>
     </button>
     <div class="lang-dropdown" id="langDropdown"></div>
   </div>

style.css

@@ -7,6 +7,15 @@
   unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
 }
 
+@font-face {
+  font-family: 'Inter';
+  font-style: normal;
+  font-weight: 100 900;
+  font-display: swap;
+  src: url('fonts/inter-cyrillic.woff2') format('woff2');
+  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
+}
+
 @font-face {
   font-family: 'JetBrains Mono';
   font-style: normal;