(function () {
  'use strict';

  if (window.__fedafoneNavigationInstalled) return;
  window.__fedafoneNavigationInstalled = true;

  var YANDEX_COUNTER_ID = 93846267;
  var GOOGLE_TAG_ID = 'AW-16641554754';
  var CHATRA_ID = 'qRv27LAnRq4wisFrb';

  var activeController = null;
  var barTimers = [];
  var activeLanguage = languageFromUrl(location.href);
  var previousTrackedUrl = location.href;

  var loadedExternalScripts = new Set(
    Array.from(document.scripts)
      .map(function (s) { return s.src ? absoluteUrl(s.src) : ''; })
      .filter(Boolean)
  );

  var persistentScriptPatterns = [
    /fedafone-navigation\.js/i,
    /jquery(?:-|\.|\/)/i,
    /bootstrap(?:\.bundle)?(?:\.min)?\.js/i,
    /smooth-scroll/i,
    /swiper-bundle/i,
    /vanilla-tilt/i,
    /parallax(?:\.min)?\.js/i,
    /\/theme(?:\.min)?\.js/i,
    /telegram\.org\/js\/telegram-web-app/i,
    /google\.com\/recaptcha\/api\.js/i,
    /gstatic\.com\/recaptcha/i,
    /mc\.yandex\.ru\/metrika/i,
    /call\.chatra\.io\/chatra\.js/i,
    /googletagmanager\.com\/gtag\/js/i
  ];

  function absoluteUrl(value) {
    try { return new URL(value, location.href).href; } catch (_) { return value || ''; }
  }

  function languageFromUrl(url) {
    try {
      var part = new URL(url, location.href).pathname.split('/').filter(Boolean)[0] || '';
      return /^(ru|en|pt|es|fr|de)$/i.test(part) ? part.toLowerCase() : '';
    } catch (_) {
      return '';
    }
  }

  function bar() {
    var el = document.getElementById('fedafone-navigation-bar');
    if (!el) {
      el = document.createElement('div');
      el.id = 'fedafone-navigation-bar';
      el.className = 'bar-long';
      el.setAttribute('aria-hidden', 'true');
      el.style.cssText = 'height:5px;background-color:rgb(217,70,239);position:fixed;top:0;left:0;z-index:99999;width:0;opacity:1;transition:width .28s ease,opacity .2s ease;box-shadow:0 0 10px rgba(217,70,239,.35);pointer-events:none;';
      document.documentElement.appendChild(el);
    }
    return el;
  }

  function clearBarTimers() {
    barTimers.forEach(clearTimeout);
    barTimers = [];
  }

  function startBar() {
    clearBarTimers();
    var el = bar();
    el.style.transition = 'none';
    el.style.opacity = '1';
    el.style.width = '0%';
    requestAnimationFrame(function () {
      el.style.transition = 'width .28s ease,opacity .2s ease';
      el.style.width = '18%';
    });
    barTimers.push(setTimeout(function () { el.style.width = '48%'; }, 180));
    barTimers.push(setTimeout(function () { el.style.width = '72%'; }, 500));
    barTimers.push(setTimeout(function () { el.style.width = '85.7031%'; }, 900));
  }

  function finishBar() {
    clearBarTimers();
    var el = bar();
    el.style.width = '100%';
    barTimers.push(setTimeout(function () { el.style.opacity = '0'; }, 160));
    barTimers.push(setTimeout(function () { if (el.parentNode) el.remove(); }, 420));
  }

  function sameFedafoneHost(a, b) {
    var hosts = ['fedafone.com', 'www.fedafone.com'];
    return hosts.indexOf(a) !== -1 && hosts.indexOf(b) !== -1;
  }

  function normaliseNavigationUrl(url) {
    var u = new URL(url, location.href);
    if (sameFedafoneHost(u.hostname, location.hostname)) {
      u.protocol = location.protocol;
      u.host = location.host;
    }
    return u;
  }

  function urlFromElement(a) {
    var raw = (a && a.getAttribute && (a.getAttribute('href') || a.getAttribute('data-href')) || '').trim();
    if (raw) return raw;

    var onclick = (a && a.getAttribute && a.getAttribute('onclick') || '').trim();
    if (!onclick) return '';

    var m = onclick.match(/(?:window\.)?open\(\s*['\"]([^'\"]+)['\"]\s*,\s*['\"]_self['\"]\s*\)/i);
    if (m) return m[1];

    m = onclick.match(/(?:window\.)?(?:location(?:\.href)?|document\.location)\s*=\s*['\"]([^'\"]+)['\"]/i);
    return m ? m[1] : '';
  }

  function shouldHandle(a, event) {
    if (!a || event.defaultPrevented || event.button !== 0 || event.metaKey || event.ctrlKey || event.shiftKey || event.altKey) return false;
    if (a.hasAttribute('download') || a.hasAttribute('data-no-pjax') || a.hasAttribute('data-full-reload')) return false;

    var target = (a.getAttribute('target') || '').toLowerCase();
    if (target && target !== '_self') return false;
    if (a.hasAttribute('data-bs-toggle') || a.hasAttribute('data-scroll')) return false;

    var raw = urlFromElement(a);
    if (!raw || raw[0] === '#' || /^(mailto:|tel:|sms:|javascript:)/i.test(raw)) return false;

    var u;
    try { u = normaliseNavigationUrl(raw); } catch (_) { return false; }

    if (u.origin !== location.origin) return false;
    if (/^\/(?:api|ajax)\//i.test(u.pathname)) return false;
    if (/\.(?:pdf|zip|rar|7z|png|jpe?g|gif|webp|avif|svg|xml|json|csv|ics|mp4|mp3)(?:$|\?)/i.test(u.pathname + u.search)) return false;
    if (u.pathname === location.pathname && u.search === location.search && u.hash) return false;

    // Google tag must never remain active on the RU site. If the user comes from
    // another language where Google is already loaded, perform one real reload.
    if (languageFromUrl(u.href) === 'ru' && activeLanguage && activeLanguage !== 'ru') return false;

    return true;
  }

  function removeSyncedHeadNodes() {
    document.head.querySelectorAll('[data-fedafone-pjax-head="1"]').forEach(function (node) { node.remove(); });
  }

  function syncHead(nextDoc) {
    document.title = nextDoc.title || document.title;

    var selectors = [
      'meta[name="description"]',
      'meta[name="keywords"]',
      'meta[name="robots"]',
      'meta[property^="og:"]',
      'meta[name^="twitter:"]',
      'link[rel="canonical"]',
      'link[rel="alternate"][hreflang]'
    ];

    selectors.forEach(function (sel) {
      document.head.querySelectorAll(sel).forEach(function (n) { n.remove(); });
    });
    selectors.forEach(function (sel) {
      nextDoc.head.querySelectorAll(sel).forEach(function (n) {
        document.head.appendChild(n.cloneNode(true));
      });
    });

    removeSyncedHeadNodes();

    nextDoc.head.querySelectorAll('link[rel="stylesheet"]').forEach(function (link) {
      var href = absoluteUrl(link.getAttribute('href') || '');
      if (!href) return;
      var alreadyLoaded = Array.from(document.head.querySelectorAll('link[rel="stylesheet"]')).some(function (existing) {
        return absoluteUrl(existing.getAttribute('href') || '') === href;
      });
      if (!alreadyLoaded) {
        var clone = link.cloneNode(true);
        clone.setAttribute('data-fedafone-pjax-head', '1');
        document.head.appendChild(clone);
      }
    });

    nextDoc.head.querySelectorAll('style').forEach(function (style) {
      var clone = style.cloneNode(true);
      clone.setAttribute('data-fedafone-pjax-head', '1');
      document.head.appendChild(clone);
    });

    if (nextDoc.documentElement.lang) document.documentElement.lang = nextDoc.documentElement.lang;
  }

  function copyBodyAttributes(nextBody) {
    Array.from(document.body.attributes).forEach(function (a) { document.body.removeAttribute(a.name); });
    Array.from(nextBody.attributes).forEach(function (a) { document.body.setAttribute(a.name, a.value); });
  }

  function persistentPatternFor(src) {
    for (var i = 0; i < persistentScriptPatterns.length; i++) {
      if (persistentScriptPatterns[i].test(src)) return persistentScriptPatterns[i];
    }
    return null;
  }

  function persistentFamilyAlreadyLoaded(src) {
    var pattern = persistentPatternFor(src);
    if (!pattern) return false;
    return Array.from(loadedExternalScripts).some(function (existing) { return pattern.test(existing); });
  }

  function createExecutableScript(sourceScript) {
    var s = document.createElement('script');
    Array.from(sourceScript.attributes || []).forEach(function (a) {
      if (a.name !== 'src') s.setAttribute(a.name, a.value);
    });
    return s;
  }

  function loadExternalScript(sourceScript, forceHead) {
    return new Promise(function (resolve) {
      var src = absoluteUrl(sourceScript.src || sourceScript.getAttribute('src') || '');
      if (!src) { resolve(); return; }

      if (loadedExternalScripts.has(src) || persistentFamilyAlreadyLoaded(src)) {
        if (sourceScript.ownerDocument === document && sourceScript.parentNode) sourceScript.remove();
        resolve();
        return;
      }

      var s = createExecutableScript(sourceScript);
      s.src = src;
      s.onload = function () { loadedExternalScripts.add(src); resolve(); };
      s.onerror = function () { resolve(); };

      if (forceHead || sourceScript.ownerDocument !== document || !sourceScript.parentNode) {
        document.head.appendChild(s);
      } else {
        sourceScript.replaceWith(s);
      }
    });
  }

  function shouldSkipInlineScript(code) {
    return /mc\.yandex\.ru\/metrika|\bChatraID\b|call\.chatra\.io\/chatra\.js|googletagmanager\.com\/gtag|AW-16641554754|function\s+gtag\s*\(/i.test(code);
  }

  function executeInlineScript(oldScript) {
    return new Promise(function (resolve) {
      var code = oldScript.textContent || '';
      if (!code.trim() || shouldSkipInlineScript(code)) {
        if (oldScript.parentNode) oldScript.remove();
        resolve();
        return;
      }

      var s = createExecutableScript(oldScript);
      s.text = code;
      oldScript.replaceWith(s);
      resolve();
    });
  }

  function runHeadExternalScripts(nextDoc) {
    var scripts = Array.from(nextDoc.head.querySelectorAll('script[src]'));
    var chain = Promise.resolve();
    scripts.forEach(function (script) {
      chain = chain.then(function () { return loadExternalScript(script, true); });
    });
    return chain;
  }

  function runPageScripts(root) {
    var scripts = Array.from(root.querySelectorAll('script'));
    var chain = Promise.resolve();

    scripts.forEach(function (oldScript) {
      chain = chain.then(function () {
        return oldScript.src ? loadExternalScript(oldScript, false) : executeInlineScript(oldScript);
      });
    });

    return chain;
  }

  function replaceBodyPreservingGlobals(nextBody) {
    // Never detach Chatra from the live DOM. Removing/re-appending its iframe can
    // reload the widget and make Chatra restore the dashboard/default palette.
    // Instead, delete every other old body node and import the next page around it.
    var chatra = document.getElementById('chatra');
    var persistentRoot = chatra;

    // Normally #chatra is a direct body child. Keep this robust if Chatra changes
    // its wrapper structure later: preserve the whole top-level subtree containing it.
    while (persistentRoot && persistentRoot.parentNode && persistentRoot.parentNode !== document.body) {
      persistentRoot = persistentRoot.parentNode;
    }
    if (persistentRoot && persistentRoot.parentNode !== document.body) persistentRoot = null;

    Array.from(document.body.childNodes).forEach(function (node) {
      if (persistentRoot && node === persistentRoot) return;
      node.remove();
    });

    Array.from(nextBody.childNodes).forEach(function (node) {
      // A fetched page may contain a stale/static Chatra root in unusual setups.
      // The live widget is authoritative and must stay unique.
      if (node.nodeType === 1 && (node.id === 'chatra' || node.querySelector && node.querySelector('#chatra'))) return;
      document.body.insertBefore(document.importNode(node, true), persistentRoot || null);
    });
  }

  function parseSwiperOptions(el) {
    var raw = el.getAttribute('data-swiper-options');
    if (!raw) return {};
    try { return JSON.parse(raw); } catch (_) {
      try { return JSON.parse(raw.replace(/\n/g, ' ')); } catch (_) { return {}; }
    }
  }

  function reinitSwipers() {
    if (typeof window.Swiper !== 'function') return;

    document.querySelectorAll('.swiper[data-swiper-options]').forEach(function (el) {
      if (el.swiper || el.classList.contains('swiper-initialized')) return;
      try {
        var options = parseSwiperOptions(el);
        var instance = new window.Swiper(el, options);
        if (options && options.tabs && instance && typeof instance.on === 'function') {
          instance.on('activeIndexChange', function (swiper) {
            var current = swiper.slides && swiper.slides[swiper.activeIndex];
            var previous = swiper.slides && swiper.slides[swiper.previousIndex];
            if (!current || !current.dataset.swiperTab) return;
            var currentTab = document.querySelector(current.dataset.swiperTab);
            var previousTab = previous && previous.dataset.swiperTab ? document.querySelector(previous.dataset.swiperTab) : null;
            if (previousTab) previousTab.classList.remove('active');
            if (currentTab) currentTab.classList.add('active');
          });
        }
      } catch (err) {
        if (window.console && console.warn) console.warn('[fedafone navigation] Swiper init failed', err);
      }
    });
  }

  function reinitVanillaTilt() {
    if (!window.VanillaTilt || typeof window.VanillaTilt.init !== 'function') return;
    document.querySelectorAll('[data-tilt]').forEach(function (el) {
      if (el.vanillaTilt) return;
      try { window.VanillaTilt.init(el); } catch (_) {}
    });
  }

  function reinitParallax() {
    if (typeof window.Parallax !== 'function') return;
    document.querySelectorAll('.parallax').forEach(function (el) {
      if (el.__fedafoneParallax) return;
      try { el.__fedafoneParallax = new window.Parallax(el); } catch (_) {}
    });
  }

  function reinitBootstrap() {
    if (!window.bootstrap) return;

    if (window.bootstrap.Tooltip) {
      document.querySelectorAll('[data-bs-toggle="tooltip"]').forEach(function (el) {
        try { window.bootstrap.Tooltip.getOrCreateInstance(el); } catch (_) {}
      });
    }
    if (window.bootstrap.Popover) {
      document.querySelectorAll('[data-bs-toggle="popover"]').forEach(function (el) {
        try { window.bootstrap.Popover.getOrCreateInstance(el); } catch (_) {}
      });
    }
    if (window.bootstrap.ScrollSpy) {
      document.querySelectorAll('[data-bs-spy="scroll"]').forEach(function (el) {
        try { window.bootstrap.ScrollSpy.getOrCreateInstance(el); } catch (_) {}
      });
    }
  }

  function reinitSmoothScroll() {
    if (typeof window.SmoothScroll !== 'function') return;
    try {
      if (window.__fedafoneSmoothScroll && typeof window.__fedafoneSmoothScroll.destroy === 'function') {
        window.__fedafoneSmoothScroll.destroy();
      }
      window.__fedafoneSmoothScroll = new window.SmoothScroll('a[data-scroll]', {
        speed: 800,
        speedAsDuration: true,
        offset: 20
      });
    } catch (_) {}
  }

  function renderRecaptcha() {
    if (!window.grecaptcha || typeof window.grecaptcha.render !== 'function') return;
    document.querySelectorAll('.g-recaptcha').forEach(function (el) {
      if (el.querySelector('iframe') || el.getAttribute('data-fedafone-rendered') === '1') return;
      try {
        window.grecaptcha.render(el, { sitekey: el.getAttribute('data-sitekey') });
        el.setAttribute('data-fedafone-rendered', '1');
      } catch (_) {}
    });
  }

  function ensureChatra() {
    // ChatraSetup is read only when the widget boots. During PJAX navigation the
    // widget remains alive, so updating ChatraSetup alone does not repaint it.
    // Keep the site's custom palette in one place and also apply it via Chatra's
    // runtime API on every seamless page transition.
    var chatraColors = {
      buttonText: '#ffffff',
      buttonBg: '#6166f1'
    };

    window.ChatraSetup = window.ChatraSetup || {};
    window.ChatraSetup.colors = Object.assign({}, window.ChatraSetup.colors || {}, chatraColors);
    window.ChatraID = CHATRA_ID;

    if (typeof window.Chatra !== 'function') {
      window.Chatra = function () {
        (window.Chatra.q = window.Chatra.q || []).push(arguments);
      };
    }

    var chatraScript = Array.from(document.scripts).find(function (s) {
      return /call\.chatra\.io\/chatra\.js/i.test(s.src || '');
    });

    if (!chatraScript) {
      var s = document.createElement('script');
      s.async = true;
      s.src = 'https://call.chatra.io/chatra.js';
      s.setAttribute('data-fedafone-global', 'chatra');
      document.head.appendChild(s);
      loadedExternalScripts.add(absoluteUrl(s.src));
    }

    function applyChatraRuntimeTheme() {
      try {
        window.Chatra('setColors', chatraColors);
        window.Chatra('show');
      } catch (_) {}
    }

    // Apply immediately and once more after Chatra's own async rendering cycle.
    // The delayed calls are harmless if the widget is already fully ready.
    applyChatraRuntimeTheme();
    setTimeout(applyChatraRuntimeTheme, 120);
    setTimeout(applyChatraRuntimeTheme, 600);

    try { window.Chatra('pageView'); } catch (_) {}
  }

  function yandexLoaderExists() {
    return Array.from(document.scripts).some(function (s) {
      return /mc\.yandex\.ru\/metrika\/tag\.js/i.test(s.src || '');
    });
  }

  function ensureYandexMetrika() {
    var alreadyPresent = typeof window.ym === 'function' && yandexLoaderExists();

    if (typeof window.ym !== 'function') {
      window.ym = function () { (window.ym.a = window.ym.a || []).push(arguments); };
      window.ym.l = +new Date();
    }

    if (!yandexLoaderExists()) {
      var s = document.createElement('script');
      s.async = true;
      s.src = 'https://mc.yandex.ru/metrika/tag.js';
      s.setAttribute('data-fedafone-global', 'yandex');
      document.head.appendChild(s);
      loadedExternalScripts.add(absoluteUrl(s.src));
    }

    if (!window.__fedafoneYandexInitialized) {
      if (!alreadyPresent) {
        try {
          window.ym(YANDEX_COUNTER_ID, 'init', {
            clickmap: true,
            trackLinks: true,
            accurateTrackBounce: true,
            webvisor: true
          });
        } catch (_) {}
      }
      window.__fedafoneYandexInitialized = true;
    }
  }

  function googleLoaderExists() {
    return Array.from(document.scripts).some(function (s) {
      return /googletagmanager\.com\/gtag\/js/i.test(s.src || '') && (s.src || '').indexOf(GOOGLE_TAG_ID) !== -1;
    });
  }

  function ensureGoogleTag() {
    if (languageFromUrl(location.href) === 'ru') return { enabled: false, newlyInitialized: false };

    var alreadyPresent = typeof window.gtag === 'function' && googleLoaderExists();

    window.dataLayer = window.dataLayer || [];
    if (typeof window.gtag !== 'function') {
      window.gtag = function () { window.dataLayer.push(arguments); };
    }

    if (!googleLoaderExists()) {
      var s = document.createElement('script');
      s.async = true;
      s.src = 'https://www.googletagmanager.com/gtag/js?id=' + encodeURIComponent(GOOGLE_TAG_ID);
      s.setAttribute('data-fedafone-global', 'google');
      document.head.appendChild(s);
      loadedExternalScripts.add(absoluteUrl(s.src));
    }

    var newlyInitialized = false;
    if (!window.__fedafoneGoogleInitialized) {
      if (!alreadyPresent) {
        try {
          window.gtag('js', new Date());
          window.gtag('config', GOOGLE_TAG_ID);
          newlyInitialized = true;
        } catch (_) {}
      }
      window.__fedafoneGoogleInitialized = true;
    }

    return { enabled: true, newlyInitialized: newlyInitialized };
  }

  function ensureLegacyAnalyticsBridge() {
    window.analytics = window.analytics || {};
    if (typeof window.analytics.goal !== 'function') {
      window.analytics.goal = function (goalName) {
        try {
          if (typeof window.ym === 'function' && goalName) {
            window.ym(YANDEX_COUNTER_ID, 'reachGoal', String(goalName));
          }
        } catch (_) {}
      };
    }
  }

  function ensureGlobalServices() {
    ensureChatra();
    ensureYandexMetrika();
    var googleState = ensureGoogleTag();
    ensureLegacyAnalyticsBridge();
    return googleState;
  }

  function trackVirtualPageView(fromUrl, googleState) {
    try {
      if (typeof window.ym === 'function') {
        window.ym(YANDEX_COUNTER_ID, 'hit', location.href, {
          title: document.title,
          referer: fromUrl || ''
        });
      }
    } catch (_) {}

    if (languageFromUrl(location.href) !== 'ru' && googleState && googleState.enabled && !googleState.newlyInitialized) {
      try {
        if (typeof window.gtag === 'function') {
          window.gtag('event', 'page_view', {
            send_to: GOOGLE_TAG_ID,
            page_location: location.href,
            page_path: location.pathname + location.search,
            page_title: document.title
          });
        }
      } catch (_) {}
    }
  }

  function rehydratePage() {
    reinitSwipers();
    reinitVanillaTilt();
    reinitParallax();
    reinitBootstrap();
    reinitSmoothScroll();
    renderRecaptcha();

    document.querySelectorAll('.page-loading').forEach(function (el) {
      el.classList.remove('active');
      setTimeout(function () { if (el.parentNode) el.remove(); }, 250);
    });

    document.dispatchEvent(new CustomEvent('fedafone:navigation', {
      detail: { url: location.href }
    }));
  }

  async function navigate(url, push) {
    var target;
    try { target = normaliseNavigationUrl(url); } catch (_) { location.href = url; return; }

    var targetLanguage = languageFromUrl(target.href);
    if (targetLanguage === 'ru' && activeLanguage && activeLanguage !== 'ru') {
      location.assign(target.href);
      return;
    }

    if (activeController) activeController.abort();
    activeController = new AbortController();
    startBar();

    var fromUrl = previousTrackedUrl || location.href;

    try {
      var response = await fetch(target.href, {
        method: 'GET',
        credentials: 'same-origin',
        redirect: 'follow',
        headers: {
          'Accept': 'text/html,application/xhtml+xml',
          'X-Fedafone-Navigation': '1',
          'X-Requested-With': 'fetch'
        },
        signal: activeController.signal
      });

      if (!response.ok || !/text\/html|application\/xhtml\+xml/i.test(response.headers.get('content-type') || '')) {
        throw new Error('navigation response');
      }

      var html = await response.text();
      var nextDoc = new DOMParser().parseFromString(html, 'text/html');
      if (!nextDoc.body || !nextDoc.querySelector('main')) throw new Error('invalid document');

      syncHead(nextDoc);
      copyBodyAttributes(nextDoc.body);
      replaceBodyPreservingGlobals(nextDoc.body);

      var finalUrl = response.url || target.href;
      try { finalUrl = normaliseNavigationUrl(finalUrl).href; } catch (_) {}

      if (push) history.pushState({ fedafoneNavigation: true }, '', finalUrl);

      activeLanguage = languageFromUrl(finalUrl);
      window.scrollTo(0, 0);

      await runHeadExternalScripts(nextDoc);
      await runPageScripts(document.body);

      var googleState = ensureGlobalServices();
      rehydratePage();
      trackVirtualPageView(fromUrl, googleState);
      previousTrackedUrl = finalUrl;
      finishBar();
    } catch (err) {
      if (err && err.name === 'AbortError') return;
      finishBar();
      location.assign(target.href);
    }
  }

  document.addEventListener('click', function (event) {
    var a = event.target.closest && event.target.closest('a, [data-href]');
    if (!shouldHandle(a, event)) return;

    var raw = urlFromElement(a);
    var target = normaliseNavigationUrl(raw);
    event.preventDefault();

    if (/\b(?:location(?:\.href)?\s*=|window\.location|document\.location|window\.open\s*\()/i.test(a.getAttribute('onclick') || '')) {
      event.stopImmediatePropagation();
    }

    navigate(target.href, true);
  }, true);

  window.addEventListener('popstate', function () {
    navigate(location.href, false);
  });

  window.addEventListener('pageshow', function () {
    finishBar();
    ensureGlobalServices();
  });

  // Covers login/register/account pages that did not previously contain Chatra or counters.
  ensureGlobalServices();
})();