teach/public/js/core.js

/* teach - kern: versie, i18n, accounts, opslag, geluid */
"use strict";
/* version — shown until /api/version resolves (or if the fetch fails, e.g. offline).
   Kept in sync by hand with the VERSION file at the repo root on every release. */
const VERSION = "0.4.44-beta";
(function(){
  const tag = document.getElementById("verTag");
  tag.textContent = "v"+VERSION;
  /* the real deployed version always wins once known: CI reads the VERSION file
     and passes it as APP_VERSION ("0.2.10-beta" on dev, the release tag on prod)
     - never a raw git sha, that's only kept as a hover-title for support/debug */
  fetch("/api/version")
    .then(r=>r.ok ? r.json() : null)
    .then(v=>{
      if(!v || typeof v.version!=="string") return;
      let text = v.version.startsWith("v") ? v.version : "v"+v.version;
      const isBeta = text.includes("beta");
      /* on dev the sha is shown inline (not just as a hover-title) so a deploy is always
         visibly different, even if the VERSION file itself was forgotten in a commit */
      if(isBeta && v.sha) text += " ("+v.sha+")";
      tag.textContent = text;
      tag.classList.toggle("beta", isBeta);
      if(v.sha) tag.title = v.sha;
    })
    .catch(()=>{});
})();
document.getElementById("copyright").textContent = "© "+new Date().getFullYear()+" Ramon Besselink";
/* =========================================================
   i18n
==========================================================*/
const I18N = {
  nl:{
    addWidget:"Widget", chooseWidget:"Kies een widget", saveBoard:"Bord opslaan",
    emptyBoard:"Het bord is leeg. Klik op “Widget” om te beginnen.",
    wg_letters:"Letterblokken", wg_letters_d:"Leer lezen en spellen met letterblokken – 3 niveaus, zoals ‘Ik leer lezen’.",
    wg_notes:"Notities", wg_notes_d:"Een vel om op te schrijven.",
    wg_timer:"Timer", wg_timer_d:"Afteltimer met kijkklok voor de klas.",
    wg_write:"Schrijfblad", wg_write_d:"Schrijven en rekenen: pen, gum en papier met schrijflijnen of rekenblokjes.",
    bgBlank:"Leeg blad", bgLines:"Lijntjes", bgWrite:"Schrijflijnen",
    bgGridS:"Kleine rekenblokjes", bgGridB:"Grote rekenblokjes",
    penSize:"Dikte", penColor:"Kleur", penExtras:"Hulpmiddelen", recentColors:"Recent gebruikt", paletteColors:"Kleuren", customColor:"Eigen kleur", eraser:"Gum", clearAll:"Alles wissen",
    toolPen:"Potlood (zachte, gelijkmatige lijn)", toolFountain:"Vulpen (kalligrafie: dik in de neerhaal, dun in de ophaal)",
    toolMark:"Markeerstift", toolText:"Tekst typen (klik op het blad)",
    wMin:"Minimaliseren", wMax:"Herstellen",
    lvl1:"Niveau 1", lvl2:"Niveau 2", lvl3:"Niveau 3",
    instr1:"Leg de letterblokken op de goede plek. Kijk goed naar de letters!",
    instr2_begin:"Zoek de <b>beginletter</b> van het woord.",
    instr2_mid:"Zoek de <b>middelste letter</b> van het woord.",
    instr2_end:"Zoek de <b>eindletter</b> van het woord.",
    instr3:"Spel het woord bij het plaatje. De nopjes helpen je!",
    card:"Kaart", cardGeneral:"Algemeen", cardStart:"Startwoorden", wordThemes:"Woordthema’s", word:"Woord", welldone:"Goed zo!", next:"Volgende woord ▸",
    cardDone:"Kaart klaar! 🎉", pickCard:"Kies een nieuwe kaart of een ander niveau.",
    myWords:"Mijn woorden", manage:"Thema's en woorden beheren", addWord:"＋ Toevoegen",
    pickPic:"Kies een plaatje",
    newTheme:"Nieuw thema", themeNamePh:"naam van het thema…", delTheme:"Thema verwijderen",
    themeFolder:"Thema's en mappen",
    exFixedFolder:"Deze map wordt automatisch beheerd.",
    anchorLibTitle:"Ankerdiagrammen", anchorLibSave:"Bewaar dit diagram in de bibliotheek",
    anchorLibOpen:"Ankerbibliotheek openen", anchorLibSaved:"Bewaard ✓",
    anchorLibEmptyGrid:"Zet eerst woorden in het diagram.",
    numWords:"Woorden per spel", all:"Alle", noThemes:"— nog geen thema's —",
    muteAll:"Alle geluiden aan/uit", sndWidget:"Geluid van deze widget aan/uit",
    catTaal:"Taal", catRekenen:"Rekenen", catWorld:"Wereldoriëntatie", catClass:"Feest & klas", catTools:"Hulpmiddelen", catMedia:"Media",
    wg_madd:"Plussommen", wg_madd_d:"Optellen tot 10, 20 of 100.",
    wg_msub:"Minsommen", wg_msub_d:"Aftrekken tot 10, 20 of 100.",
    wg_mmul:"Keersommen", wg_mmul_d:"De tafels van 1 t/m 12 oefenen.",
    wg_mdiv:"Deelsommen", wg_mdiv_d:"Delen met de tafels van 1 t/m 12.",
    wg_mpct:"Procenten", wg_mpct_d:"Procenten uitrekenen met mooie getallen.",
    mGood:"Goed zo!", mAnsWas:"Het goede antwoord is", mAgain:"Nog een keer ▸",
    mGoed:"goed", mOf:"van", mDoneT:"Klaar!",
    amode:"Blokjes slepen of typen", penMode:"Tekenen op het bord",
    fabWidgets:"Widget toevoegen", fabDraw:"Tekenen & schrijven", fabMind:"Mindmap op het bord",
    fabImg:"Afbeelding op het bord",
    nodeColor:"Kleur", nodeFont:"Lettergrootte", lineColor:"Lijnkleur", lineStyle:"Lijnstijl",
    a11y:"Hoog contrast (voor slechtzienden)",
    zoomUI:"Beeldgrootte: alles groter of kleiner tonen",
    lensBig:"Loep groter", lensSmall:"Loep kleiner", lensShape:"Rond of vierkant",
    toolHand:"Handje: verplaatsen en bedienen",
    boardsNav:"Borden en mappen", newBoard:"＋ Bord", newFolder:"＋ Map",
    folderPh:"naam nieuwe map…", boardName:"Bord", folderName:"Map",
    delBoard:"Bord verwijderen (2× tikken)",
    exFolder:"Map", exRename:"Hernoem", exDelete:"Verwijder", exConfirm:"zeker?",
    exSelectFirst:"Klik eerst een map of bord aan.", exNoSlash:"Een naam mag geen / bevatten.",
    exExists:"Die naam bestaat al.", exEmpty:"Deze map is leeg.",
    exFolderNotEmpty:"Map is niet leeg - verplaats of verwijder eerst de inhoud.",
    exIntoSelf:"Een map kan niet in zichzelf.", exNoRootItems:"Borden horen in een map.",
    exLastBoard:"Het laatste bord kan niet weg.",
    shGlobal:"Systeem", shSchool:"School",
    shPublished:"Gedeeld ✓", shCopied:"Gekopieerd naar je eigen mappen ✓",
    shNoCreateHere:"Nieuw maken kan alleen in je eigen mappen - sleep het daarna hierheen om te delen.",
    shReadonly:"Alleen lezen - kopieer het naar je eigen mappen om te bewerken.",
    exLock:"Alleen lezen", shLockedOk:"Vergrendeld ✓", shUnlockedOk:"Ontgrendeld ✓",
    exWrongBranch:"Dat hoort niet in deze map (borden en ankerdiagrammen zijn gescheiden).",
    anchorLibCreateHint:"Nieuw diagram maken: gebruik 💾 op een ankerwidget.",
    hudMin:"Menu inklappen/uitklappen", hudOrient:"Horizontaal of verticaal",
    wFull:"Maximaliseren", wUnfull:"Terugzetten",
    wZoom:"Inhoud groter of kleiner (voor slechtzienden)",
    wg_flits:"Flitswoorden", wg_flits_d:"Een woord flitst kort in beeld – lezen voordat het verdwijnt!",
    flFlash:"⚡ Flits", flShow:"👁 Toon", flNext:"Volgende ▸", flSec:"sec", flMission:"Lees het woord voordat het verdwijnt.", flQuestion:"Kon je het woord zelf lezen?", flGotIt:"🌟 Gelukt!", flAgain:"Nog oefenen", flScore:"{score} sterren",
    wg_dice:"Dobbelstenen", wg_dice_d:"Gooi 1, 2 of 3 grote dobbelstenen.",
    diceRoll:"🎲 Gooi!", diceSum:"Samen", diceMission:"Gooi, tel de ogen en controleer de uitkomst.", diceHistory:"Vorige worpen",
    wg_light:"Klassenstoplicht", wg_light_d:"Maak in één oogopslag duidelijk of kinderen luisteren, fluisteren of rustig mogen werken.",
    lightRed:"Rood", lightRedHint:"Stop en luister", lightOrange:"Oranje", lightOrangeHint:"Fluister en rond af", lightGreen:"Groen", lightGreenHint:"Je mag rustig werken", lightStatus:"{color}: {hint}",
    wg_names:"Namenkiezer", wg_names_d:"Kies willekeurig een naam uit de klas.",
    namesPh:"Eén naam per regel…", namesPick:"🎯 Kies!", namesNoRep:"Zonder herhaling",
    namesDone:"Iedereen is geweest! 🎉", namesReset:"Opnieuw", namesProgress:"{used} van {total} geweest",
    wg_hak:"Hakken & plakken", wg_hak_d:"Woorden in klanken hakken en weer plakken, met voorlezen.",
    hakChop:"✂️ Hak", hakGlue:"🔗 Plak", hakSay:"🔊 Lees voor", hakHint:"Bekijk en hoor de klankgroepen in het woord.",
    wg_ball:"Ballonnenwoord", wg_ball_d:"Raad het woord letter voor letter voordat de ballonnen knappen.",
    wg_anchor:"Ankerwoorden", wg_anchor_d:"Woordweb voor woordenschatonderwijs: leer woorden in samenhang rond een themawoord (het anker), met plaatjes. Elk woord verankert aan de woorden eromheen.",
    fabAnchor:"Ankerdiagram (woordweb)",
    wg_birthday:"Verjaardagstaart", wg_birthday_d:"Maak een persoonlijke taart met naam, leeftijd, kleuren, lagen, versiering en kaarsjes.",
    birthdayName:"naam van de jarige", birthdayAge:"Leeftijd", birthdayLayers:"Lagen", birthdayCakeColor:"Taart", birthdayIcing:"Glazuur", birthdayPlate:"Bord",
    birthdayCandles:"Kaarsjes", birthdayCelebrate:"🎉 Vieren!", birthdayTitle:"Er is er één jarig!", birthdayFor:"Hoera voor {name}!",
    birthdaySprinkles:"Spikkels", birthdayFruit:"Fruit", birthdayStars:"Sterren", birthdayNone:"Geen versiering",
    wg_numberline:"Getallenlijn", wg_numberline_d:"Oefen getalbegrip met een instelbare, interactieve getallenlijn.",
    numberlineFrom:"Van", numberlineTo:"Tot", numberlineStep:"Stap", numberlineNew:"Nieuwe opdracht", numberlineTask:"Zet de stip op {number}",
    numberlineCheck:"Controleren", numberlineGood:"Goed gevonden! 🌟", numberlineTry:"Kijk nog eens naar de getallenlijn.", numberlineScore:"{score} sterren · reeks {streak}",
    wg_fractions:"Breukenmuur", wg_fractions_d:"Bouw breuken, vergelijk de gekleurde delen en ontdek gelijkwaardige breuken.",
    wg_clock:"Oefenklok", wg_clock_d:"Leer kloktijden op vier niveaus met meerdere leerwijzen en spellen.",
    wg_placevalue:"Plaatswaardetabel", wg_placevalue_d:"Ontdek de waarde van cijfers tot honderdduizend.",
    wg_money:"Geldrekenen", wg_money_d:"Oefen bedragen maken, geld tellen en wisselgeld op drie niveaus.",
    wg_trees:"Bomen & bladeren", wg_trees_d:"Leer achttien Nederlandse boomsoorten met vijf foto-, kenmerk- en koppeloefeningen.",
    wg_birds:"Vogels herkennen", wg_birds_d:"Leer achttien Nederlandse vogels met vier foto-, kenmerk- en naamoefeningen.",
    wg_plants:"Wilde planten", wg_plants_d:"Herken twaalf algemene wilde planten aan echte foto's en duidelijke veldkenmerken.",
    wg_topography:"Topografie", wg_topography_d:"Oefen Nederland én de wereld: provincies, plaatsen, landsdelen, rivieren en werelddelen op nauwkeurige kaarten.",
    worldActivity:"Werkvorm", worldLearn:"Leren", worldQuiz:"Quiz", worldFlash:"Flitskaarten", worldSpell:"Letterblokken", worldExercise:"Oefening", worldLevel:"Niveau", worldTreeView:"Wat zie je?", worldTreeWhole:"Hele boom", worldTreeLeaf:"Blad", worldTreeMixed:"Boom en blad",
    worldSpellHint:"Sleep de letters naar de vakken en spel de naam.", worldSpellComplete:"Goed gespeld! 🌟",
    worldLevel1Hint:"Niveau 1: de bekendste soorten en plekken", worldLevel2Hint:"Niveau 2: ook wat minder bekende soorten en plekken", worldLevel3Hint:"Niveau 3: alle soorten en plekken, ook de zeldzame",
    worldExerciseRecognize:"Herken de soort", worldExercisePair:"Koppel boom en blad", worldExerciseClue:"Raad met kenmerken", worldExercisePhoto:"Kies de juiste foto", worldExerciseLatin:"Wetenschappelijke naam",
    worldScore:"Score: {score} · reeks: {streak}", worldExploreHint:"Bekijk de kenmerken en vergelijk de soorten.", worldQuestionTree:"Welke boom zie je?", worldQuestionLeaf:"Bij welke boom hoort dit blad?", worldQuestionBird:"Welke vogel zie je?", worldQuestionPlant:"Welke wilde plant zie je?",
    worldQuestionPair:"Bij welke boom horen deze boom en dit blad?", worldQuestionClue:"Welke soort hoort bij deze kenmerken?", worldQuestionLatin:"Welke soort hoort bij deze wetenschappelijke naam?", worldFindTreePhoto:"Tik op de foto van de {name}.", worldFindBirdPhoto:"Tik op de foto van de {name}.", worldFindPlantPhoto:"Tik op de foto van de {name}.",
    worldCorrect:"Goed herkend! 🌟", worldTryAgain:"Kijk nog eens goed naar de kenmerken.", worldNext:"Volgende opdracht",
    worldPhotoTree:"Boom", worldPhotoLeaf:"Blad of naalden", worldPhotoBird:"Vogel", worldPhotoPlant:"Wilde plant", worldPhotoCredit:"Foto: {author} · {license}", worldPhotoOption:"Afbeelding {number}",
    topoMode:"Oefenen met", topoProvinces:"Provincies", topoCapitals:"Provinciehoofdsteden", topoCities:"Belangrijke steden", topoRegions:"Landsdelen", topoRivers:"Rivieren", topoContinents:"Werelddelen", topoMapLabel:"Kaart van Nederland", topoWorldMapLabel:"Kaart van de wereld",
    topoExploreHint:"Bekijk de echte provinciegrenzen en vergelijk de ligging van de plaatsen.", topoExploreRegions:"Bekijk welke provincies samen Noord-, Oost-, West- en Zuid-Nederland vormen.", topoExploreRivers:"Volg de loop van de grote Nederlandse rivieren van grens tot delta.", topoExploreContinents:"Vergelijk de vorm en ligging van de zeven werelddelen.",
    topoFindProvince:"Tik op de provincie {name}.", topoFindCapital:"Waar ligt provinciehoofdstad {name}?", topoFindCity:"Waar ligt {name}?", topoFindRegion:"Tik op {name}.", topoFindRiver:"Tik op de rivier {name}.", topoFindContinent:"Tik op het werelddeel {name}.", topoMapSource:"Kaart: Gust Justice · CC BY-SA 4.0", topoWorldMapSource:"Wereldkaart: Natural Earth · publiek domein",
    moneyLearningStyle:"Opdracht tonen", moneyStyleAmount:"Als bedrag", moneyStyleWords:"In woorden", moneyStyleBoth:"Bedrag en woorden",
    moneyGame:"Spel", moneyGameMake:"Bedrag maken", moneyGameCount:"Geld tellen", moneyGameChange:"Wisselgeld",
    moneyCategory:"Koopcategorie", moneyCategoryAll:"Alle producten", moneyCategoryFood:"Eten en drinken", moneyCategorySchool:"Schoolspullen", moneyCategoryPlay:"Spelen en sport",
    moneyLevel:"Niveau", moneyLevel1Hint:"Niveau 1: hele euro’s tot € 9", moneyLevel2Hint:"Niveau 2: tot € 10 in stappen van 5 cent", moneyLevel3Hint:"Niveau 3: tot € 50 met alle centen, munten en biljetten",
    moneyScore:"Score: {score} · reeks: {streak}", moneyMakeTitle:"Maak het gevraagde bedrag", moneyCountTitle:"Hoeveel geld zie je?", moneyChangeTitle:"Bereken het wisselgeld",
    moneyYourTask:"Jouw opdracht", moneyPrice:"Prijs", moneyPaid:"Betaald", moneyWallet:"Jouw geld", moneyWalletHint:"Sleep geld hierheen of tik op een munt of biljet. Sleep geplaatst geld naar buiten om het weg te halen.", moneyRemove:"Sleep naar buiten om weg te halen", moneyTray:"Munten en biljetten",
    moneyBuildHint:"Sleep de cijfers naar de vakken en maak het bedrag.", moneyTypeHint:"Voer het bedrag in met een komma.", moneyIncomplete:"Maak eerst het volledige bedrag af.",
    moneyCorrect:"Goed gedaan! Kies de volgende opdracht. 🌟", moneyTryAgain:"Bijna! Reken het bedrag nog eens na.", moneyNeed:"Nog {amount} nodig.", moneyTooMuch:"{amount} te veel.",
    moneyClear:"Wissen", moneyNextTask:"Volgende opdracht",
    wg_wordtypes:"Woordsoorten", wg_wordtypes_d:"Geef woorden kleur per woordsoort.",
    wg_schedule:"Dagplanning", wg_schedule_d:"Maak een duidelijke visuele planning voor de klas.",
    wg_mood:"Gevoelsmeter", wg_mood_d:"Doe een snelle, anonieme check-in met de klas.",
    wg_poll:"Klaspoll", wg_poll_d:"Stem samen op maximaal zes antwoorden.",
    wg_noise:"Geluidsmeter", wg_noise_d:"Meet het geluidsniveau in de klas met de microfoon - alles blijft lokaal, er wordt niets opgenomen of verstuurd.",
    noiseOff:"Zet de microfoon aan om te starten.", noiseStatus_green:"Lekker rustig!", noiseStatus_yellow:"Een beetje luidruchtig…", noiseStatus_red:"Te luid! Even rustig aan.",
    noiseDenied:"Kan niet bij de microfoon. Geef toestemming in de browser en probeer opnieuw.",
    noiseStart:"Microfoon aan", noiseStop:"Stop", noiseZoneGreen:"Rustig tot", noiseZoneYellow:"Te luid vanaf",
    noisePrivacy:"Er wordt niets opgenomen of verstuurd: het geluidsniveau blijft alleen in deze browser.",
    wg_feelings:"Gevoelszones", wg_feelings_d:"Individuele check-in: kies je zone en krijg een passende tip om jezelf te helpen.",
    fzZone_blue:"Blauw", fzZone_green:"Groen", fzZone_yellow:"Geel", fzZone_red:"Rood",
    fzDesc_blue:"Ik voel me moe of verdrietig.", fzDesc_green:"Ik voel me kalm en klaar om te leren.", fzDesc_yellow:"Ik voel me druk, gestrest of opgewonden.", fzDesc_red:"Ik voel me boos of overprikkeld.",
    fzTip_blue:"Even rustig zitten, wat water drinken of een boek pakken kan helpen.", fzTip_green:"Fijn zo! Dit is een goed moment om aan de slag te gaan.", fzTip_yellow:"Diep ademhalen of een korte pauze kan helpen om weer rustig te worden.", fzTip_red:"Ga naar de rustige plek, haal diep adem of vraag de juf of meester om hulp.",
    wg_breathe:"Ademhalingsoefening", wg_breathe_d:"Adem rustig mee met de groeiende en krimpende cirkel, in drie tempo's.",
    bre_in:"Adem in", bre_hold:"Houd vast", bre_out:"Adem uit", breStart:"Start", breStop:"Stop", breRounds:"{n} rondjes gedaan",
    "brePattern_4-4":"4 tellen in, 4 uit", "brePattern_4-7-8":"4 in, 7 vast, 8 uit", "brePattern_4-4-4-4":"4 in, 4 vast, 4 uit, 4 vast",
    wg_compliments:"Complimentenmachine", wg_compliments_d:"Trek een willekeurig compliment om iemand blij te maken.",
    complimentsDraw:"Trek een compliment",
    wg_avatar:"Mijn personage", wg_avatar_d:"Stel je eigen personage samen: soort, kleuren, haar en accessoires.",
    stAvatar:"Mijn personage", stAvatarSub:"Stel je eigen personage samen.",
    avatarAlt:"Mijn personage", avatarSpecies_dino:"Dino", avatarSpecies_monster:"Monster", avatarSpecies_animal:"Dier",
    avatarBodyColor:"Lichaamskleur", avatarHairColor:"Haarkleur", avatarHairStyle:"Haarstijl",
    avatarHair_none:"Geen", avatarHair_spiky:"Piekerig", avatarHair_curly:"Krullen", avatarHair_ponytail:"Staartje", avatarHair_mohawk:"Hanenkam",
    avatarAccHead:"Hoofdaccessoire", avatarAccBody:"Lichaamsaccessoire",
    avatarAcc_none:"Geen", avatarAcc_cap:"Petje", avatarAcc_crown:"Kroon", avatarAcc_glasses:"Bril", avatarAcc_bow:"Strik",
    avatarAcc_sunglasses:"Zonnebril", avatarAcc_headphones:"Koptelefoon", avatarAcc_partyhat:"Feesthoedje",
    avatarAcc_scarf:"Sjaal", avatarAcc_cape:"Cape", avatarAcc_badge:"Insigne",
    avatarAcc_necklace:"Ketting", avatarAcc_backpack:"Rugtas",
    avatarSave:"Opslaan", avatarSaved:"Personage opgeslagen ✓",
    clock24Hour:"24-uursklok",
    widgetSettings:"Instellingen", clockWelcome:"Oefenen met de klok", clockWelcomeHint:"Kies bovenaan niveau 1, 2 of 3. Kies bij Instellingen hoe de opdracht wordt getoond en start daarna.", clockSetTitle:"Zet de wijzers op de goede tijd", clockReadTitle:"Bekijk de opdracht en maak de tijd", clockChooseTitle:"Kies het juiste tijdblok", clockYourTask:"Jouw opdracht", clockLinkHands:"Grote wijzer draait mee", clockTypeHint:"Voer de tijd in als UU:MM.", clockLevel1Hint:"Niveau 1: hele en halve uren", clockLevel2Hint:"Niveau 2: stappen van vijf minuten", clockLevel3Hint:"Niveau 3: alle minuten, met optioneel 24 uur en dagdelen", clockBuildHint:"Sleep vier cijfers naar de vakken en maak UU:MM.", clockDigitGhost:"?", clockDigit:"Cijfer {digit}", clockIncomplete:"Maak eerst de volledige tijd af.", clockCorrect:"Goed gedaan! Kies de volgende opdracht. 🌟", clockTryAgain:"Bijna! Probeer het nog een keer.", clockStartTask:"Start opdracht", clockNextTask:"Volgende opdracht", clockLevel:"Niveau", clockLevelHour:"Hele uren", clockLevelQuarter:"Kwartieren", clockLevelFive:"Vijf minuten", clockLevelMinute:"Iedere minuut", clockLearningStyle:"Opdracht tonen", clockStyleAnalogue:"Analoge klok", clockStyleDigital:"Grote digitale tijd", clockStyleWords:"In woorden", clockStyleBoth:"Klok, cijfers en woorden", clockDragHint:"Sleep de wijzers om de tijd te veranderen.", clockGame:"Spel", clockGameSet:"Klok zetten", clockGameRead:"Tijd aflezen", clockGameChoose:"Kies de tijd", clockStart:"Kies ‘Nieuwe opdracht’ om te beginnen", clockRead:"Welke tijd zie je? Stel je antwoord hieronder in.", clockChoose:"Welke digitale tijd hoort bij deze klok?", clockTry:"Nog niet. Het goede antwoord is {time}.", clockScore:"Score: {score} · reeks: {streak}", clockWordsHour:"{hour} uur", clockWordsQuarterPast:"kwart over {hour}", clockWordsHalf:"half {hour}", clockWordsQuarterTo:"kwart voor {hour}", clockWordsPast:"{minutes} over {hour}", clockWordsTo:"{minutes} voor {hour}", clockMorning:"in de ochtend", clockAfternoon:"in de middag", clockEvening:"in de avond", clockNight:"in de nacht", fractionRows:"Rijen", fractionLabels:"Breuken tonen", fractionHint:"Tik in een rij tot waar je de breuk wilt kleuren.", fractionSelected:"Gekozen breuk: {fraction}", fractionClear:"Leegmaken", clockTask:"Oefenopdracht", clockSet:"Zet de klok op {time}", clockHour:"Uur", clockMinute:"Minuten", placeNumber:"Getal", placeGame:"Spel", placeGameExplore:"Verkennen", placeGameBuild:"Bouwen", placeLevel:"Niveau", placeLevel1Hint:"Niveau 1: getallen tot 100 (T en E)", placeLevel2Hint:"Niveau 2: getallen tot 1000 (H, T en E)", placeLevel3Hint:"Niveau 3: getallen tot 1.000.000 (HD, TD, D, H, T en E)", placeBuildTitle:"Bouw het getal", placeYourTask:"Jouw opdracht", placeBuildHint:"Sleep de cijfers naar de vakken en bouw het getal.", placeDigitGhost:"?", placeIncomplete:"Maak eerst het hele getal af.", placeCorrect:"Goed gedaan! Kies de volgende opdracht. 🌟", placeTryAgain:"Bijna! Probeer het nog een keer.", placeNextTask:"Volgende opdracht", placeScore:"Score: {score} · reeks: {streak}", moneyMake:"Maak € {amount}", wordtypeSentence:"Zin", wordtypeHint:"Tik: blauw zelfstandig naamwoord · groen werkwoord · geel bijvoeglijk naamwoord", scheduleActivity:"activiteit…", scheduleEmpty:"Voeg de eerste activiteit toe.", scheduleCount:"{count} momenten op de planning", pollReset:"Opnieuw", pollQuestion:"Vraag", pollOptions:"Antwoorden (één per regel)", pollTotal:"{count} stemmen", moodTotal:"{count} kinderen hebben gekozen", moodVote:"Kies {face}", galleryFavorites:"Favorieten", galleryFavorite:"Favoriet maken", galleryEmpty:"Geen widgets gevonden.", gallerySearch:"Zoek widgets…", templateMath:"Rekenles", templateLanguage:"Taalles", templateDay:"Dagstart", exportBoard:"Exporteren", importBoard:"Importeren", importError:"Dit is geen geldig Teach-bordbestand.", widgetDuplicate:"Dupliceren", widgetLock:"Vastzetten", widgetUnlock:"Losmaken", widgetPreview:"Voorbeeld zonder bediening", undo:"Ongedaan maken", redo:"Opnieuw",
    wg_sentence:"Zinsbouwer", wg_sentence_d:"Bouw zinnen met kleurgecodeerde zinsdelen en voeg eigen woorden toe.",
    sentence_who:"Wie?", sentence_does:"Doet wat?", sentence_what:"Wat of waar?", sentenceHint:"Kies woorden om een zin te maken…",
    sentenceAdd:"eigen woord of zinsdeel…", sentenceClear:"Wissen", sentenceSpeak:"🔊 Lees voor", sentenceRemove:"Verwijder woord", sentenceSurprise:"✨ Verrassingszin",
    anchorPh:"thema…", anchorHint:"Woordweb: zet het themawoord in het midden en bouw eromheen · tik op een vak en typ · sleep om te schuiven",
    anchorHintReadonly:"Sleep de achtergrond om te schuiven",
    anchorColor:"Kleur: klik om te wisselen (verbind woorden met dezelfde kleur)",
    ballWin:"Geraden! 🎉", ballLose:"Helaas! Het woord was:",
    bgDots:"Stippen", toolRuler:"Liniaal", toolGeo:"Geodriehoek", toolLens:"Vergrootglas",
    wg_mind:"Mindmap", wg_mind_d:"Woordweb, spin of boomdiagram om samen ideeën te ordenen.",
    mmSpider:"Spin", mmTree:"Boom", mmWeb:"Woordweb", mmRoot:"Onderwerp",
    mmHint:"Klik op tekst om te typen · sleep aan de rand",
    wg_media:"Foto & video", wg_media_d:"Toon foto's en video's van internet, zoals YouTube of Vimeo.",
    mediaPh:"Plak een link (YouTube, Vimeo, foto of video)…", mediaShow:"Tonen",
    mediaEmpty:"Plak hierboven een link en klik op Tonen.",
    mediaErr:"Deze link kan niet worden getoond. Probeer een YouTube-, Vimeo-, foto- of videolink, of open hem met ↗ in een nieuw tabblad.",
    mediaOpen:"Open in nieuw tabblad",
    wordPh:"woord (2–5 letters)", close:"Sluiten",
    badWord:"Gebruik 2 t/m 5 letters (a-z).", needPic:"Kies eerst een plaatje.",
    noWords:"Nog geen eigen woorden. Voeg er hierboven een toe!",
    tabEmoji:"😀 Emoji", tabPicto:"🖼️ Picto's", tabUpload:"📷 Upload", tabLibrary:"🗂 Bibliotheek",
    pictoSearch:"Zoeken", pictoPh:"zoekwoord…", pictoNone:"Niets gevonden. Probeer een ander woord.",
    pictoLoad:"Zoeken…", pictoErr:"Kon picto's niet laden (internet nodig).",
    pictoCredit:"Picto's: <a href='https://arasaac.org' target='_blank'>ARASAAC</a> (CC BY-NC-SA, Gobierno de Aragón). Ook leuk: <a href='https://www.sclera.be' target='_blank'>sclera.be</a> (gratis download, dan via Upload toevoegen).",
    upload:"📷 Kies een afbeelding…",
    upHint:"Tip: vierkant plaatje, witte of doorzichtige achtergrond, één duidelijk voorwerp, géén tekst in het plaatje.",
    save:"Opslaan", cancel:"Annuleren",
    imgCatalog:"Afbeeldingscatalogus", imgSearch:"Zoek op naam, map of thema…",
    imgOpenLibrary:"Open afbeeldingenbibliotheek", imgLanguageHint:"Hier vind je alle vaste woordplaatjes, eigen woordkaarten en uploads bij elkaar.",
    imgWordThemes:"Taalthema’s",
    imgFolders:"Afbeeldingen en mappen", imgUpload:"Afbeeldingen uploaden",
    imgChooseFiles:"Kies één of meer afbeeldingen…", imgFolder:"Map", imgThemes:"Thema’s",
    imgNewTheme:"Nieuw thema…", imgAddTheme:"Thema toevoegen", imgEdit:"Afbeelding bewerken", imgName:"Naam",
    imgAllThemes:"Alle thema’s", imgAllScopes:"Alle bronnen", imgAllFolders:"Alle mappen", imgFolderRoot:"Hoofdmap",
    imgScopeGlobal:"Systeem", imgScopeSchool:"School", imgScopePersonal:"Mijn afbeeldingen",
    imgQuotaUsed:"{used} gebruikt", imgQuotaOf:"limiet {limit}", imgSchoolQuota:"school: {used} van {limit}",
    imgUnlimited:"Onbeperkt", imgNoResults:"Geen afbeeldingen gevonden.", imgNoManage:"Je mag dit onderdeel niet beheren.",
    imgLoginRequired:"Log in om de afbeeldingscatalogus te gebruiken.", imgInvalidFile:"Kies een geldige afbeelding.",
    imgFileTooLarge:"Een afbeelding mag maximaal 50 MB groot zijn.", imgUploadFailed:"Uploaden is mislukt.",
    imgUploading:"Afbeeldingen uploaden…", imgUploaded:"Afbeeldingen toegevoegd ✓", imgUntitled:"Afbeelding",
    imgLoading:"Afbeeldingen laden…", imgSaved:"Afbeelding opgeslagen ✓", imgDeleted:"Afbeelding verwijderd ✓",
    imgThemeAdded:"Thema toegevoegd ✓", imgStorageAdmin:"Opslaglimieten afbeeldingen",
    imgQuotaUsage:"{used} gebruikt · {limit}", imgQuotaDefault:"Standaard", imgQuotaCustom:"Aangepast",
    imgPickSchool:"— kies een school —", imgSystemScope:"Systeem (zonder school)",
    imgQuotaDefaultOf:"Standaard ({limit})",
    imgQuotaMb:"limiet in MB", imgQuotaInvalid:"Vul een geldige limiet in.", imgSchools:"Scholen",
    imgUsers:"Gebruikers", imgSearchUsers:"Zoek gebruiker…",
    cats:["Dieren","Eten","Natuur","Vervoer","Spullen","Lichaam"],
    notesPh:"Schrijf hier…", notesColor:"Kleur briefje", notesLarge:"Grote letters", notesCount:"{count} tekens",
    start:"Start", pause:"Pauze", reset:"Reset", min:"min",
    tmDigits:"Cijfers", tmVisual:"Kijkklok", tmBoth:"Allebei", tmSound:"Geluid aan/uit",
    tmHint:"Sleep aan de rode schijf om de tijd in te stellen.",
    login:"Inloggen", loginBtn:"Inloggen", registerBtn:"Account maken", logout:"Uitloggen",
    settingsTitle:"Instellingen", tabLogin:"Inloggen", tabLinkCode:"Koppelcode", busy:"Bezig…",
    stAccount:"Account", stPassword:"Wachtwoord", stSession:"Sessie",
    stSearchPh:"Zoeken in instellingen…", stNoResults:"Niets gevonden.",
    stOpenSection:"open dit onderdeel",
    stGroupPersonal:"Persoonlijk", stGroupSchool:"School", stGroupSystem:"Systeem",
    stAccountSub:"Je gegevens, wachtwoord en reservekopieën.",
    stViewSub:"Weergave op dit apparaat: rolvoorbeeld, thema, taal en menubalk.",
    wikiTitle:"Curriculumwiki",
    wikiSub:"Nieuwe SLO-kerndoelen voor het primair onderwijs, per leergebied.",
    wikiKicker:"Primair onderwijs · juli 2026",
    wikiIntro:"Bekijk de 40 nieuwe kerndoelen, hun onderdelen en de huidige aansluiting van Teach.",
    wikiAreas:"leergebieden", wikiGoals:"kerndoelen", wikiGoal:"Kerndoel",
    wikiGoalsRange:"Kerndoelen {range}", wikiParts:"Onderdelen",
    wikiStatusTitle:"Status van de doelen",
    wikiStatusText:"Dit zijn definitieve conceptkerndoelen. De wettelijke invoering wordt gefaseerd vastgelegd; de officiële SLO-publicatie blijft leidend.",
    wikiOfficialSource:"Open officiële SLO-publicatie",
    wikiOfficialArea:"Bekijk {area} in de officiële publicatie",
    wikiTuleTitle:"TULE en de nieuwe leerlijnen",
    wikiYearProfiles:"Leerjaarprofielen taal en rekenen",
    wikiYearProfilesText:"Praktische Teach-uitwerking voor widgetopdrachten per groep. Gebaseerd op de kerndoelen 2026 en TULE; geen officiële SLO-jaarnormen.",
    wikiYear:"Groep {n}", wikiProfileGoals:"Leerdoelen",
    wikiTuleText:"TULE werkt de kerndoelen uit 2006 voorbeeldmatig uit. Nieuwe SLO-leerlijnen bij de doelen van 2026 zijn nog in ontwikkeling. Een niveau-indeling in Teach is daarom geen officiële SLO-leerlijn.",
    wikiTuleSource:"Open TULE bij SLO", wikiProgressionsSource:"Volg de ontwikkeling van nieuwe leerlijnen",
    wikiSearchLabel:"Doorzoek de curriculumwiki",
    wikiSearchPlaceholder:"Zoek op doel, domein, onderwerp of widget…",
    wikiAreaFilter:"Filter op leergebied", wikiAllAreas:"Alle leergebieden",
    wikiCoveragePartial:"Deels in Teach", wikiCoverageSupport:"Lesondersteuning", wikiCoverageOpen:"Nog open",
    wikiWidgets:"Huidige widgets", wikiNoResults:"Geen kerndoelen gevonden.",
    wikiCarefulTitle:"Zorgvuldig gebruiken.",
    wikiCarefulText:"Een widget die één onderdeel oefent, dekt niet automatisch het volledige kerndoel. School- en ervaringsdoelen vragen andere vormen van bewijs dan een goed/fout-score.",
    widgetCurriculumInfo:"Kerndoelinformatie", widgetCurriculumIntro:"Deze widget draagt bij aan de onderstaande kerndoelen.",
    widgetCurriculumNone:"Voor deze ondersteunende widget is geen directe koppeling met een kerndoel vastgesteld.",
    widgetCurriculumWiki:"Bekijk dit kerndoel in de curriculumwiki", widgetCurriculumAll:"Open de volledige curriculumwiki",
    widgetCurriculumCareful:"Een widget ondersteunt onderdelen van een kerndoel en vormt op zichzelf geen bewijs dat het volledige doel is behaald.",
    wikiLanguageNote:"The official SLO goals and these implementation summaries are shown in Dutch.",
    stUsersSub:"Accounts beheren: leerlingen, staf, ouders en aanmeldingen.",
    stKlassenSub:"Klassen aanmaken, koppelen en beheren.",
    stToewijzSub:"Bepaal wat een klas of leerling te zien krijgt.",
    stVoortgangSub:"Volg per leerling de resultaten in de tijd.",
    stScholenSub:"Scholen en systeemmanagers, over alle scholen heen.",
    amSchoolMenu:"School", stSchoolMenuSub:"Scholen, klassen en gebruikers beheren.",
    stOpslag:"Opslag", stOpslagSub:"Afbeeldingencatalogus en opslagruimte per school.",
    stInhoud:"Inhoud", stInhoudSub:"Welkomstwoord, meldingen en widget-uitleg - direct aanpasbaar, zonder release.",
    cmsWelcomeH:"Welkomstwoord (inlogscherm)",
    cmsAnnounceH:"Melding voor alle gebruikers",
    cmsWidgetH:"Widget-uitleg (bibliotheek)",
    cmsActive:"Melding tonen", cmsLevelInfo:"informatie", cmsLevelWarn:"belangrijk",
    cmsSaved:"Opgeslagen ✓", cmsNl:"Nederlands", cmsEn:"English",
    cmsWidgetPick:"— kies een widget… —",
    cmsWidgetHint:"Leeg laten = de standaarduitleg.",
    cmsShortcutsH:"Systeembrede inhoud",
    cmsShortcutsHint:"Ankerdiagrammen en borden deel je via de gedeelde bibliotheek (map 🌐 Systeem in de verkenner); afbeeldingen via de catalogus. Iedereen kan ze daar kopiëren.",
    cmsOpenShared:"🌐 Borden & ankerdiagrammen", cmsOpenImages:"🖼 Afbeeldingencatalogus",
    stBackups:"Reservekopieën", backupsNote:"Automatisch bewaarde eerdere versies van je borden en woorden.",
    backupsEmpty:"Nog geen reservekopieën.", backupRestore:"herstel", backupRestoreConfirm:"zeker?",
    backupRestored:"Versie hersteld ✓",
    stView:"Weergave", vwTheme:"Thema", vwLight:"Licht", vwDark:"Donker", vwAuto:"Auto",
    vwContrast:"Hoog contrast", vwOn:"Aan", vwOff:"Uit", vwLang:"Taal",
    vwTbar:"Menubalk", vwTop:"Boven", vwLeft:"Links", vwRight:"Rechts",
    vwMotion:"Animaties", vwGlass:"Glas-effect",
    vwRole:"Weergave als", vwRoleSystem:"Systeem", vwRoleAdmin:"Schoolbeheerder", vwRoleTeacher:"Leerkracht", vwRoleParent:"Ouder", vwRolePupil:"Leerling",
    vwRoleNote:"Alleen de interface verandert. Je blijft ingelogd als systeemmanager; serverrechten en gegevens wijzigen niet.",
    vwPreview:"Voorbeeldweergave", vwPreviewReset:"Terug naar systeem",
    vwParentPreview:"Voorbeeld van het ouderportaal. Echte kindgegevens en acties zijn in deze weergave uitgeschakeld.",
    vwPupilPreview:"Voorbeeld van de leerlingomgeving met de taal- en rekenwidgets van het huidige bord. Bediening en voortgang zijn uitgeschakeld.",
    vwPupilAddWidget:"Widget toevoegen", vwPupilChooseWidget:"Kies een leerlingwidget",
    vwPupilAddWidgetNote:"Alleen taal- en rekenwidgets die in de leerlingomgeving werken worden getoond.",
    vwNote:"Deze voorkeuren gelden voor dit apparaat.",
    pwChanged:"Wachtwoord gewijzigd ✓", pwCurrentPh:"huidig wachtwoord",
    namePh:"naam", passPh:"wachtwoord",
    guestNote:"Zonder inloggen wordt niets bewaard. Log in met je schoolaccount om alles op de server te bewaren.",
    storedNote:"Je werk staat op de school-server en is op elk digibord beschikbaar.",
    errLogin:"Onbekende naam of verkeerd wachtwoord.",
    schoolSel:"— kies je school (leeg = systeem) —",
    linkIntro:"Nieuw account? Activeer het met je koppelcode:",
    linkBtn:"Account activeren", pwChange:"Wijzig", pwNewPh:"nieuw wachtwoord (min. 8, met cijfer)",
    pwConfirmPh:"herhaal wachtwoord", pwShow:"👁 Toon", pwHide:"🙈 Verberg",
    errPwMatch:"Wachtwoorden komen niet overeen.",
    codePh:"koppelcode",
    roleSuper:"Systeemmanager", roleAdmin:"Schoolbeheerder",
    roleTeacher:"Groepsleiding", rolePupil:"Leerling", roleParent:"Ouder",
    tabParentReg:"Ouders",
    parentRegIntro:"Maak een ouderaccount en volg je kind - ook als de school (nog) niet meedoet:",
    parentRegBtn:"Account maken",
    parentTitle:"Mijn kinderen",
    parentNoChildren:"Nog geen kinderen gekoppeld.",
    parentAddChild:"＋ Kind", parentChildNamePh:"naam van je kind…", parentAddBtn:"Toevoegen",
    parentPwNote:"Bewaar dit wachtwoord: je kind logt ermee in (schoolveld leeg laten).",
    parentLinkTitle:"＋ Ouder-code", parentLinkPh:"ouder-code van school…", parentLinkBtn:"Koppel",
    parentLinkNote:"Vraag de school om een ouder-code voor je kind.",
    parentHome:"thuis",
    parentApply:"🏫 Aanmelden", parentApplied:"aangemeld bij", parentApplyBtn:"Meld aan",
    parentSchoolPh:"zoek je school…",
    parentUnlink:"Ontkoppel",
    parentUnlinkWarn:"Verwijdert alleen de koppeling; het account van je kind blijft bestaan.",
    parentProgress:"📈 Voortgang", parentProgressEmpty:"Nog geen voortgang.",
    parentLevel:"🎯 Leerniveau", parentLevelTaal:"Taal", parentLevelRekenen:"Rekenen",
    parentLevelYear:"Groep", parentLevelPath:"Uitwerking", parentLevelSave:"Opslaan",
    parentLevelSaved:"Leerniveau opgeslagen.",
    dtLen:"Lengte", dtContrast:"Hoog contrast",
    dtLock:"Vastzetten: kan niet meer verschuiven of draaien, alleen nog langs tekenen",
    dtMode:"Basis: grote hoofdhoeken en hele centimeters. Volledig: graden per 2° met dubbele schaal, millimeters en evenwijdige hulplijnen.",
    dtModeBasic:"basis", dtModeFull:"volledig",
    pupilEmpty:"Je leerkracht heeft nog niets voor je klaargezet.",
    pupilWatching:"meekijken",
    amUsers:"Gebruikers", amClasses:"Klassen", amSchools:"Scholen", amOverarching:"Systeem",
    amPickSchoolHint:"Kies hierboven eerst een school.", amPickSchool:"Kies een school",
    amPupils:"Leerlingen", amPupilOne:"Leerling", amEdit:"Bewerken",
    amAdmins:"Schoolbeheerders", amAdminOne:"Schoolbeheerder",
    amClassAdd:"— voeg toe aan klas… —", amClassRemove:"Uit deze klas halen",
    amSure:"weet je het zeker?", amDelete:"verwijder",
    amFieldName:"Naam", amFieldRole:"Functie", amFieldClass:"Klas", amFieldClasses:"Klassen",
    amFieldPw:"Wachtwoord", amFieldActions:"Acties", amPwTypePh:"typ een wachtwoord…",
    amNewPwWarn:"Maakt een nieuw wachtwoord aan. Het oude wachtwoord werkt daarna niet meer en de gebruiker wordt overal uitgelogd.",
    amNewCodeWarn:"Maakt een nieuwe koppelcode aan. Het huidige wachtwoord vervalt direct; de gebruiker moet opnieuw activeren.",
    amDeleteWarn:"Verwijdert dit account definitief, inclusief borden en woorden.",
    amResultPw:"Nieuw wachtwoord", amResultCode:"Nieuwe koppelcode",
    amColStatus:"Status", amNeverLoggedIn:"nog niet ingelogd", amFieldSchool:"School", amStatusActive:"actief",
    amNoSchool:"— geen school —", amNoSchoolGroup:"Zonder school", amShowMore:"meer tonen",
    amMoveToSchool:"— verplaats naar school… —", amFieldMoveSchool:"Verplaats naar", amPickSchoolFirst:"Kies hierboven eerst een school om de klassen te zien of aan te maken.",
    amNoClassesHere:"Deze school heeft nog geen klassen. Bestaande klassen kunnen bij een andere school horen — kies die school hierboven, of maak hieronder een nieuwe klas.",
    amLoadError:"Laden mislukt",
    amDetailEmpty:"Selecteer links een gebruiker om te bewerken, of maak een nieuwe aan.",
    amNewUser:"Nieuwe gebruiker", amRequestOne:"Aanmelding", amReqNew:"nieuw",
    amParents:"Ouders",
    amParentCode:"Ouder-code", amResultParentCode:"Ouder-code",
    amParentCodeWarn:"Maakt een eenmalige ouder-code aan; een eerdere code vervalt.",
    amLinkRequests:"Aanmeldingen", amRequestVia:"via",
    amAdopt:"Adopteer", amAdoptUserPh:"andere gebruikersnaam (bij conflict)…",
    amMatchPick:"— koppel aan bestaande leerling… —", amMatchBtn:"Koppel",
    amReject:"Afwijzen", amRejectWarn:"Wijst de aanmelding af; de ouder ziet het verzoek verdwijnen.",
    amSchoolNamePh:"naam van de school…", amNewSchoolConfirm:"Aanmaken:",
    amDeleteSchoolWarn:"Verwijdert deze school met alle klassen en gebruikers. Dit kan niet ongedaan worden gemaakt.",
    amClassNamePh:"naam van de klas…",
    amDeleteClassWarn:"Verwijdert deze klas; leerlingen blijven bestaan maar staan daarna zonder klas.",
    amNewSchool:"＋ School", amNewClass:"＋ Klas", amNewTeacher:"＋ Groepsleiding",
    amNewAdmin:"＋ Schoolbeheerder", amNewSuper:"＋ Systeemmanager",
    amNewPupil:"＋ Leerling", amUserPh:"gebruikersnaam…", amNamePh:"naam…",
    amSearchPh:"zoek op naam…",
    amCode:"koppelcode", amNewCode:"nieuwe code", amPw:"wachtwoord",
    amNoClass:"— geen klas —", amPending:"nog niet geactiveerd",
    amCouple:"koppel leerkracht", amAllSchools:"— alle scholen —", amSuperGroup:"Systeem",
    amBack:"Terug", amStaff:"Staf", amSupers:"Systeemmanagers",
    amUnassigned:"Niet ingedeeld", amNoResults:"Geen resultaten",
    amCreated:"Aangemaakt! Geef deze koppelcode door:",
    amPupilMade:"Leerling aangemaakt. Wachtwoord:",
    amPwHidden:"al gebruikt", amGenerate:"genereer wachtwoord",
    amNewPw:"nieuw wachtwoord", amPwSet:"Wachtwoord ingesteld:",
    amPwOptional:"wachtwoord (leeg = koppelcode)",
    amOwnPassword:"Eigen wachtwoord ter bevestiging", amOwnPasswordPh:"jouw huidige wachtwoord…",
    amAssignments:"Toewijzingen", amAssignClasses:"Per klas (standaard)", amAssignPupils:"Per leerling (uitzondering)",
    amPickPupil:"— kies een leerling —", amNoAssignment:"— geen toewijzing —",
    amAssignedAs:"Toegewezen:", amAssign:"Toewijzen", amAssignSaved:"Toewijzing opgeslagen.",
    amUnlink:"Loskoppelen",
    amWholeBoard:"— heel bord —", amModeWatch:"kijken", amModeWork:"werken",
    cast:"Cast", castTitle:"Cast bord", castWhat:"Wat cast je?",
    castClasses:"Klassen", castPupils:"Leerlingen",
    castNoClasses:"Geen klassen in deze school.", castNoPupils:"Geen leerlingen in deze school.",
    castActive:"✓ Actief",
    amProgress:"Voortgang", amProgressEmpty:"Nog geen voortgang voor deze leerling.",
    amProgressLast14Days:"Laatste 14 dagen", amProgressMistakes:"Recente fouten",
    amProgressTimeline:"Volledige tijdlijn",
    amProgressGiven:"Gegeven: {answer}", amProgressExpected:"Juist: {answer}",
    amExportClass:"Exporteren per klas", amExportCsv:"Exporteer als CSV", amPickClassHint:"Kies eerst een klas.",
    amExportColPupil:"Leerling", amExportColWidget:"Widget", amExportColAttempts:"Pogingen",
    amExportColCorrect:"Goed", amExportColStars:"Sterren", amExportColDate:"Datum",
    amExportColUsername:"Gebruikersnaam",
    amExportDone:"Export gedownload ✓",
    amLevels:"Klassenmanagement", amLevelsSub:"Stel per vakgebied een niveaugroep en niveau in.",
    amLevelYearGroup:"Groep", amLevelLevel:"Niveau", amYearGroupN:"Groep {n}",
    amLevelClassDefault:"Klas-standaard", amLevelPupils:"Leerlingen",
    amLevelInherited:"erft van klas", amLevelNone:"nog niet ingesteld",
    amLevelReset:"terug naar klas-standaard", amLevelSaved:"Opgeslagen ✓",
    amSubject_taal:"Taal", amSubject_rekenen:"Rekenen", amSubject_world:"Wereldoriëntatie",
    amConfirmDel:"Weet je zeker dat je deze gebruiker wilt verwijderen?",
    amCopy:"kopieer", amCopyAll:"kopieer alles",
    amResetClass:"reset wachtwoorden klas", amResetSchool:"reset alle leerlingwachtwoorden",
    amConfirmReset:"Alle leerlingwachtwoorden van deze klas vernieuwen?",
    amConfirmResetSchool:"Alle leerlingwachtwoorden van deze hele school vernieuwen? Dit kan niet ongedaan worden gemaakt.",
    amResetNone:"Geen leerlingen om te resetten.",
    errExists:"Deze naam bestaat al.",
    errName:"Naam: 2–20 letters of cijfers.",
    errPass:"Wachtwoord: minimaal 4 tekens.",
    errCrypto:"Inloggen werkt niet in deze browser.",
    hello:"Hoi", boardSaved:"Opgeslagen ✓", loginFirst:"Eerst inloggen",
    saving:"Opslaan…", saveFailed:"⚠ Niet opgeslagen",
    saveConflict:"⚠ Elders bewerkt", saveConflictHint:"In een ander tabblad bewerkt. Klik om de nieuwste versie te laden (jouw niet-opgeslagen wijzigingen hier vervallen)."
  },
  en:{
    addWidget:"Widget", chooseWidget:"Choose a widget", saveBoard:"Save board",
    emptyBoard:"The board is empty. Click “Widget” to get started.",
    wg_letters:"Letter blocks", wg_letters_d:"Learn to read and spell with letter blocks – 3 levels, like ‘Ik leer lezen’.",
    wg_notes:"Notes", wg_notes_d:"A sheet to write on.",
    wg_timer:"Timer", wg_timer_d:"Countdown timer with a visual clock for class.",
    wg_write:"Writing pad", wg_write_d:"Writing and maths: pen, eraser and paper with handwriting lines or maths squares.",
    bgBlank:"Blank sheet", bgLines:"Lines", bgWrite:"Handwriting lines",
    bgGridS:"Small maths squares", bgGridB:"Big maths squares",
    penSize:"Thickness", penColor:"Colour", penExtras:"Tools", recentColors:"Recently used", paletteColors:"Colours", customColor:"Custom colour", eraser:"Eraser", clearAll:"Clear all",
    toolPen:"Pencil (soft, even line)", toolFountain:"Fountain pen (calligraphy: thick downstroke, thin upstroke)",
    toolMark:"Highlighter", toolText:"Type text (click the sheet)",
    wMin:"Minimize", wMax:"Restore",
    lvl1:"Level 1", lvl2:"Level 2", lvl3:"Level 3",
    instr1:"Place the letter blocks in the right spot. Look closely at the letters!",
    instr2_begin:"Find the <b>beginning letter</b> of the word.",
    instr2_mid:"Find the <b>middle letter</b> of the word.",
    instr2_end:"Find the <b>ending letter</b> of the word.",
    instr3:"Spell the word for the picture. The little studs will help you!",
    card:"Card", cardGeneral:"General", cardStart:"Starter words", wordThemes:"Word themes", word:"Word", welldone:"Well done!", next:"Next word ▸",
    cardDone:"Card complete! 🎉", pickCard:"Pick a new card or another level.",
    myWords:"My words", manage:"Manage themes and words", addWord:"＋ Add",
    pickPic:"Choose a picture",
    newTheme:"New theme", themeNamePh:"name of the theme…", delTheme:"Delete theme",
    themeFolder:"Themes and folders",
    exFixedFolder:"This folder is managed automatically.",
    anchorLibTitle:"Anchor diagrams", anchorLibSave:"Save this diagram to the library",
    anchorLibOpen:"Open anchor library", anchorLibSaved:"Saved ✓",
    anchorLibEmptyGrid:"Put words in the diagram first.",
    numWords:"Words per game", all:"All", noThemes:"— no themes yet —",
    muteAll:"All sounds on/off", sndWidget:"This widget's sound on/off",
    catTaal:"Language", catRekenen:"Maths", catWorld:"World studies", catClass:"Celebration & class", catTools:"Tools", catMedia:"Media",
    wg_madd:"Addition", wg_madd_d:"Adding up to 10, 20 or 100.",
    wg_msub:"Subtraction", wg_msub_d:"Subtracting up to 10, 20 or 100.",
    wg_mmul:"Multiplication", wg_mmul_d:"Practise the times tables 1–12.",
    wg_mdiv:"Division", wg_mdiv_d:"Dividing with the tables 1–12.",
    wg_mpct:"Percentages", wg_mpct_d:"Working out percentages with friendly numbers.",
    mGood:"Well done!", mAnsWas:"The right answer is", mAgain:"Again ▸",
    mGoed:"correct", mOf:"of", mDoneT:"Done!",
    amode:"Drag blocks or type", penMode:"Draw on the board",
    fabWidgets:"Add widget", fabDraw:"Draw & write", fabMind:"Mindmap on the board",
    fabImg:"Picture on the board",
    nodeColor:"Colour", nodeFont:"Font size", lineColor:"Line colour", lineStyle:"Line style",
    a11y:"High contrast (for low vision)",
    zoomUI:"Display size: show everything bigger or smaller",
    lensBig:"Larger magnifier", lensSmall:"Smaller magnifier", lensShape:"Round or square",
    toolHand:"Hand: move and interact",
    boardsNav:"Boards and folders", newBoard:"＋ Board", newFolder:"＋ Folder",
    folderPh:"name of new folder…", boardName:"Board", folderName:"Folder",
    delBoard:"Delete board (tap twice)",
    exFolder:"Folder", exRename:"Rename", exDelete:"Delete", exConfirm:"sure?",
    exSelectFirst:"Select a folder or board first.", exNoSlash:"A name cannot contain /.",
    exExists:"That name already exists.", exEmpty:"This folder is empty.",
    exFolderNotEmpty:"Folder is not empty - move or delete its contents first.",
    exIntoSelf:"A folder cannot go inside itself.", exNoRootItems:"Boards belong in a folder.",
    exLastBoard:"The last board cannot be deleted.",
    shGlobal:"System", shSchool:"School",
    shPublished:"Shared ✓", shCopied:"Copied to your own folders ✓",
    shNoCreateHere:"Create it in your own folders first - then drag it here to share.",
    shReadonly:"Read-only - copy it to your own folders to edit.",
    exLock:"Read-only", shLockedOk:"Locked ✓", shUnlockedOk:"Unlocked ✓",
    exWrongBranch:"That doesn't belong in this folder (boards and anchor diagrams are separate).",
    anchorLibCreateHint:"To create a new diagram: use 💾 on an anchor widget.",
    hudMin:"Collapse/expand menu", hudOrient:"Horizontal or vertical",
    wFull:"Maximize", wUnfull:"Restore",
    wZoom:"Content bigger or smaller (low vision)",
    wg_flits:"Flash words", wg_flits_d:"A word flashes briefly – read it before it disappears!",
    flFlash:"⚡ Flash", flShow:"👁 Show", flNext:"Next ▸", flSec:"sec", flMission:"Read the word before it disappears.", flQuestion:"Could you read the word by yourself?", flGotIt:"🌟 Got it!", flAgain:"Practise again", flScore:"{score} stars",
    wg_dice:"Dice", wg_dice_d:"Roll 1, 2 or 3 big dice.",
    diceRoll:"🎲 Roll!", diceSum:"Total", diceMission:"Roll, count the dots and check the total.", diceHistory:"Previous rolls",
    wg_light:"Class traffic light", wg_light_d:"Show at a glance whether children listen, whisper or work quietly.",
    lightRed:"Red", lightRedHint:"Stop and listen", lightOrange:"Amber", lightOrangeHint:"Whisper and finish", lightGreen:"Green", lightGreenHint:"You may work quietly", lightStatus:"{color}: {hint}",
    wg_names:"Name picker", wg_names_d:"Pick a random name from the class.",
    namesPh:"One name per line…", namesPick:"🎯 Pick!", namesNoRep:"No repeats",
    namesDone:"Everyone has had a turn! 🎉", namesReset:"Start over", namesProgress:"{used} of {total} picked",
    wg_hak:"Chop & blend", wg_hak_d:"Chop words into sounds and blend them back, with read-aloud.",
    hakChop:"✂️ Chop", hakGlue:"🔗 Blend", hakSay:"🔊 Read aloud", hakHint:"See and hear the sound groups in the word.",
    wg_ball:"Balloon word", wg_ball_d:"Guess the word letter by letter before the balloons pop.",
    wg_anchor:"Anchor words", wg_anchor_d:"Word web for vocabulary teaching: learn words in meaningful clusters around a theme word (the anchor), with pictures. Every word anchors to its neighbours.",
    fabAnchor:"Anchor diagram (word web)",
    wg_birthday:"Birthday cake", wg_birthday_d:"Create a personal cake with a name, age, colours, layers, decorations and candles.",
    birthdayName:"birthday person's name", birthdayAge:"Age", birthdayLayers:"Layers", birthdayCakeColor:"Cake", birthdayIcing:"Icing", birthdayPlate:"Plate",
    birthdayCandles:"Candles", birthdayCelebrate:"🎉 Celebrate!", birthdayTitle:"Someone has a birthday!", birthdayFor:"Hooray for {name}!",
    birthdaySprinkles:"Sprinkles", birthdayFruit:"Fruit", birthdayStars:"Stars", birthdayNone:"No decoration",
    wg_numberline:"Number line", wg_numberline_d:"Practise number sense with an adjustable, interactive number line.",
    numberlineFrom:"From", numberlineTo:"To", numberlineStep:"Step", numberlineNew:"New task", numberlineTask:"Move the marker to {number}",
    numberlineCheck:"Check", numberlineGood:"Well done! 🌟", numberlineTry:"Take another look at the number line.", numberlineScore:"{score} stars · streak {streak}",
    wg_fractions:"Fraction wall", wg_fractions_d:"Build fractions, compare coloured parts and discover equivalent fractions.",
    wg_clock:"Practice clock", wg_clock_d:"Learn time at four levels with multiple learning styles and games.",
    wg_placevalue:"Place value", wg_placevalue_d:"Explore digit values up to hundred thousands.",
    wg_money:"Money", wg_money_d:"Practise making amounts, counting money and change at three levels.",
    wg_trees:"Trees & leaves", wg_trees_d:"Learn eighteen Dutch tree species with five photo, feature and matching exercises.",
    wg_birds:"Bird identification", wg_birds_d:"Learn eighteen Dutch birds with four photo, feature and naming exercises.",
    wg_plants:"Wild plants", wg_plants_d:"Recognise twelve common wild plants from real photographs and clear field marks.",
    wg_topography:"Topography", wg_topography_d:"Practise the Netherlands and the world: provinces, places, regions, rivers and continents on accurate maps.",
    worldActivity:"Activity", worldLearn:"Learn", worldQuiz:"Quiz", worldFlash:"Flashcards", worldSpell:"Letter blocks", worldExercise:"Exercise", worldLevel:"Level", worldTreeView:"What do you see?", worldTreeWhole:"Whole tree", worldTreeLeaf:"Leaf", worldTreeMixed:"Tree and leaf",
    worldSpellHint:"Drag the letters into the slots to spell the name.", worldSpellComplete:"Well spelled! 🌟",
    worldLevel1Hint:"Level 1: the most familiar species and places", worldLevel2Hint:"Level 2: also some less familiar species and places", worldLevel3Hint:"Level 3: all species and places, including the rare ones",
    worldExerciseRecognize:"Recognise the species", worldExercisePair:"Match tree and leaf", worldExerciseClue:"Guess from features", worldExercisePhoto:"Choose the correct photo", worldExerciseLatin:"Scientific name",
    worldScore:"Score: {score} · streak: {streak}", worldExploreHint:"Study the features and compare the species.", worldQuestionTree:"Which tree do you see?", worldQuestionLeaf:"Which tree does this leaf belong to?", worldQuestionBird:"Which bird do you see?", worldQuestionPlant:"Which wild plant do you see?",
    worldQuestionPair:"Which species do this tree and leaf belong to?", worldQuestionClue:"Which species matches these features?", worldQuestionLatin:"Which species matches this scientific name?", worldFindTreePhoto:"Tap the photograph of the {name}.", worldFindBirdPhoto:"Tap the photograph of the {name}.", worldFindPlantPhoto:"Tap the photograph of the {name}.",
    worldCorrect:"Well recognised! 🌟", worldTryAgain:"Take another close look at the features.", worldNext:"Next task",
    worldPhotoTree:"Tree", worldPhotoLeaf:"Leaf or needles", worldPhotoBird:"Bird", worldPhotoPlant:"Wild plant", worldPhotoCredit:"Photo: {author} · {license}", worldPhotoOption:"Image {number}",
    topoMode:"Practise", topoProvinces:"Provinces", topoCapitals:"Provincial capitals", topoCities:"Important cities", topoRegions:"Regions", topoRivers:"Rivers", topoContinents:"Continents", topoMapLabel:"Map of the Netherlands", topoWorldMapLabel:"Map of the world",
    topoExploreHint:"Study the real provincial boundaries and compare the locations of the places.", topoExploreRegions:"Study which provinces make up the northern, eastern, western and southern Netherlands.", topoExploreRivers:"Follow the major Dutch rivers from the border to the delta.", topoExploreContinents:"Compare the shapes and locations of the seven continents.",
    topoFindProvince:"Tap the province {name}.", topoFindCapital:"Where is the provincial capital {name}?", topoFindCity:"Where is {name}?", topoFindRegion:"Tap {name}.", topoFindRiver:"Tap the river {name}.", topoFindContinent:"Tap the continent {name}.", topoMapSource:"Map: Gust Justice · CC BY-SA 4.0", topoWorldMapSource:"World map: Natural Earth · public domain",
    moneyLearningStyle:"Show task as", moneyStyleAmount:"As an amount", moneyStyleWords:"In words", moneyStyleBoth:"Amount and words",
    moneyGame:"Game", moneyGameMake:"Make an amount", moneyGameCount:"Count money", moneyGameChange:"Change",
    moneyCategory:"Shopping category", moneyCategoryAll:"All products", moneyCategoryFood:"Food and drinks", moneyCategorySchool:"School supplies", moneyCategoryPlay:"Play and sports",
    moneyLevel:"Level", moneyLevel1Hint:"Level 1: whole euros up to €9", moneyLevel2Hint:"Level 2: up to €10 in five-cent steps", moneyLevel3Hint:"Level 3: up to €50 with all cents, coins and notes",
    moneyScore:"Score: {score} · streak: {streak}", moneyMakeTitle:"Make the requested amount", moneyCountTitle:"How much money do you see?", moneyChangeTitle:"Work out the change",
    moneyYourTask:"Your task", moneyPrice:"Price", moneyPaid:"Paid", moneyWallet:"Your money", moneyWalletHint:"Drag money here or tap a coin or note. Drag placed money outside to remove it.", moneyRemove:"Drag outside to remove", moneyTray:"Coins and notes",
    moneyBuildHint:"Drag the digits into the slots to make the amount.", moneyTypeHint:"Enter the amount with a decimal point.", moneyIncomplete:"Complete the full amount first.",
    moneyCorrect:"Well done! Choose the next task. 🌟", moneyTryAgain:"Almost! Check the amount again.", moneyNeed:"You still need {amount}.", moneyTooMuch:"{amount} too much.",
    moneyClear:"Clear", moneyNextTask:"Next task",
    wg_wordtypes:"Word classes", wg_wordtypes_d:"Colour words by their word class.",
    wg_schedule:"Day schedule", wg_schedule_d:"Create a clear visual class schedule.",
    wg_mood:"Mood check-in", wg_mood_d:"Run a quick anonymous class check-in.",
    wg_poll:"Class poll", wg_poll_d:"Vote together on up to six answers.",
    wg_noise:"Noise meter", wg_noise_d:"Measure the classroom noise level with the microphone - everything stays local, nothing is recorded or sent anywhere.",
    noiseOff:"Turn on the microphone to start.", noiseStatus_green:"Nice and quiet!", noiseStatus_yellow:"A bit noisy…", noiseStatus_red:"Too loud! Let's settle down.",
    noiseDenied:"Can't reach the microphone. Allow access in your browser and try again.",
    noiseStart:"Microphone on", noiseStop:"Stop", noiseZoneGreen:"Quiet up to", noiseZoneYellow:"Too loud from",
    noisePrivacy:"Nothing is recorded or sent anywhere: the noise level stays in this browser only.",
    wg_feelings:"Feelings zones", wg_feelings_d:"Individual check-in: pick your zone and get a matching tip to help yourself.",
    fzZone_blue:"Blue", fzZone_green:"Green", fzZone_yellow:"Yellow", fzZone_red:"Red",
    fzDesc_blue:"I feel tired or sad.", fzDesc_green:"I feel calm and ready to learn.", fzDesc_yellow:"I feel restless, stressed or excited.", fzDesc_red:"I feel angry or overwhelmed.",
    fzTip_blue:"Sitting quietly, drinking some water, or grabbing a book can help.", fzTip_green:"Great! This is a good moment to get started.", fzTip_yellow:"Taking a deep breath or a short break can help you feel calm again.", fzTip_red:"Go to the quiet spot, take a deep breath, or ask your teacher for help.",
    wg_breathe:"Breathing exercise", wg_breathe_d:"Breathe along with the growing and shrinking circle, in three paces.",
    bre_in:"Breathe in", bre_hold:"Hold", bre_out:"Breathe out", breStart:"Start", breStop:"Stop", breRounds:"{n} rounds done",
    "brePattern_4-4":"4 counts in, 4 out", "brePattern_4-7-8":"4 in, 7 hold, 8 out", "brePattern_4-4-4-4":"4 in, 4 hold, 4 out, 4 hold",
    wg_compliments:"Compliment machine", wg_compliments_d:"Draw a random compliment to make someone's day.",
    complimentsDraw:"Draw a compliment",
    wg_avatar:"My character", wg_avatar_d:"Build your own character: species, colours, hair and accessories.",
    stAvatar:"My character", stAvatarSub:"Build your own character.",
    avatarAlt:"My character", avatarSpecies_dino:"Dino", avatarSpecies_monster:"Monster", avatarSpecies_animal:"Animal",
    avatarBodyColor:"Body colour", avatarHairColor:"Hair colour", avatarHairStyle:"Hair style",
    avatarHair_none:"None", avatarHair_spiky:"Spiky", avatarHair_curly:"Curly", avatarHair_ponytail:"Ponytail", avatarHair_mohawk:"Mohawk",
    avatarAccHead:"Head accessory", avatarAccBody:"Body accessory",
    avatarAcc_none:"None", avatarAcc_cap:"Cap", avatarAcc_crown:"Crown", avatarAcc_glasses:"Glasses", avatarAcc_bow:"Bow",
    avatarAcc_sunglasses:"Sunglasses", avatarAcc_headphones:"Headphones", avatarAcc_partyhat:"Party hat",
    avatarAcc_scarf:"Scarf", avatarAcc_cape:"Cape", avatarAcc_badge:"Badge",
    avatarAcc_necklace:"Necklace", avatarAcc_backpack:"Backpack",
    avatarSave:"Save", avatarSaved:"Character saved ✓",
    clock24Hour:"24-hour clock",
    widgetSettings:"Settings", clockWelcome:"Practise telling time", clockWelcomeHint:"Choose level 1, 2 or 3 at the top. In Settings, choose how the task is shown, then start.", clockSetTitle:"Move the hands to the correct time", clockReadTitle:"View the task and make the time", clockChooseTitle:"Choose the correct time block", clockYourTask:"Your task", clockLinkHands:"Move the minute hand along", clockTypeHint:"Enter the time as HH:MM.", clockLevel1Hint:"Level 1: whole and half hours", clockLevel2Hint:"Level 2: five-minute steps", clockLevel3Hint:"Level 3: every minute, with optional 24-hour time and day parts", clockBuildHint:"Drag four digits into the slots to make HH:MM.", clockDigitGhost:"?", clockDigit:"Digit {digit}", clockIncomplete:"Complete the full time first.", clockCorrect:"Well done! Choose the next task. 🌟", clockTryAgain:"Almost! Try again.", clockStartTask:"Start task", clockNextTask:"Next task", clockLevel:"Level", clockLevelHour:"Whole hours", clockLevelQuarter:"Quarter hours", clockLevelFive:"Five minutes", clockLevelMinute:"Every minute", clockLearningStyle:"Show task as", clockStyleAnalogue:"Analogue clock", clockStyleDigital:"Large digital time", clockStyleWords:"In words", clockStyleBoth:"Clock, digits and words", clockDragHint:"Drag the hands to change the time.", clockGame:"Game", clockGameSet:"Set the clock", clockGameRead:"Read the time", clockGameChoose:"Choose the time", clockStart:"Choose ‘New task’ to begin", clockRead:"What time is it? Set your answer below.", clockChoose:"Which digital time matches this clock?", clockTry:"Not yet. The correct answer is {time}.", clockScore:"Score: {score} · streak: {streak}", clockWordsHour:"{hour} o'clock", clockWordsQuarterPast:"quarter past {hour}", clockWordsHalf:"half past {hour}", clockWordsQuarterTo:"quarter to {hour}", clockWordsPast:"{minutes} past {hour}", clockWordsTo:"{minutes} to {hour}", clockMorning:"in the morning", clockAfternoon:"in the afternoon", clockEvening:"in the evening", clockNight:"at night", fractionRows:"Rows", fractionLabels:"Show fractions", fractionHint:"Tap a row up to the part you want to colour.", fractionSelected:"Selected fraction: {fraction}", fractionClear:"Clear", clockTask:"Practice task", clockSet:"Set the clock to {time}", clockHour:"Hour", clockMinute:"Minutes", placeNumber:"Number", placeGame:"Game", placeGameExplore:"Explore", placeGameBuild:"Build", placeLevel:"Level", placeLevel1Hint:"Level 1: numbers up to 100 (T and E)", placeLevel2Hint:"Level 2: numbers up to 1000 (H, T and E)", placeLevel3Hint:"Level 3: numbers up to 1,000,000 (HD, TD, D, H, T and E)", placeBuildTitle:"Build the number", placeYourTask:"Your task", placeBuildHint:"Drag the digits into the slots to build the number.", placeDigitGhost:"?", placeIncomplete:"Complete the whole number first.", placeCorrect:"Well done! Choose the next task. 🌟", placeTryAgain:"Almost! Try again.", placeNextTask:"Next task", placeScore:"Score: {score} · streak: {streak}", moneyMake:"Make € {amount}", wordtypeSentence:"Sentence", wordtypeHint:"Tap: blue noun · green verb · yellow adjective", scheduleActivity:"activity…", scheduleEmpty:"Add the first activity.", scheduleCount:"{count} moments in the schedule", pollReset:"Reset", pollQuestion:"Question", pollOptions:"Answers (one per line)", pollTotal:"{count} votes", moodTotal:"{count} children have chosen", moodVote:"Choose {face}", galleryFavorites:"Favourites", galleryFavorite:"Add favourite", galleryEmpty:"No widgets found.", gallerySearch:"Search widgets…", templateMath:"Maths lesson", templateLanguage:"Language lesson", templateDay:"Day start", exportBoard:"Export", importBoard:"Import", importError:"This is not a valid Teach board file.", widgetDuplicate:"Duplicate", widgetLock:"Lock", widgetUnlock:"Unlock", widgetPreview:"Preview without controls", undo:"Undo", redo:"Redo",
    wg_sentence:"Sentence builder", wg_sentence_d:"Build sentences with colour-coded parts and add your own words.",
    sentence_who:"Who?", sentence_does:"Does what?", sentence_what:"What or where?", sentenceHint:"Choose words to build a sentence…",
    sentenceAdd:"your own word or phrase…", sentenceClear:"Clear", sentenceSpeak:"🔊 Read aloud", sentenceRemove:"Remove word", sentenceSurprise:"✨ Surprise sentence",
    anchorPh:"theme…", anchorHint:"Word web: put the theme word in the middle and build around it · tap a cell and type · drag to pan",
    anchorHintReadonly:"Drag the background to pan",
    anchorColor:"Colour: click to cycle (connect words with the same colour)",
    ballWin:"You got it! 🎉", ballLose:"Oh no! The word was:",
    bgDots:"Dots", toolRuler:"Ruler", toolGeo:"Set square", toolLens:"Magnifier",
    wg_mind:"Mind map", wg_mind_d:"Word web, spider or tree diagram to organise ideas together.",
    mmSpider:"Spider", mmTree:"Tree", mmWeb:"Word web", mmRoot:"Topic",
    mmHint:"Click text to type · drag by the edge",
    wg_media:"Photo & video", wg_media_d:"Show photos and videos from the internet, such as YouTube or Vimeo.",
    mediaPh:"Paste a link (YouTube, Vimeo, photo or video)…", mediaShow:"Show",
    mediaEmpty:"Paste a link above and click Show.",
    mediaErr:"This link cannot be shown. Try a YouTube, Vimeo, photo or video link, or open it with ↗ in a new tab.",
    mediaOpen:"Open in new tab",
    wordPh:"word (2–5 letters)", close:"Close",
    badWord:"Use 2 to 5 letters (a-z).", needPic:"Pick a picture first.",
    noWords:"No custom words yet. Add one above!",
    tabEmoji:"😀 Emoji", tabPicto:"🖼️ Pictos", tabUpload:"📷 Upload", tabLibrary:"🗂 Library",
    pictoSearch:"Search", pictoPh:"search word…", pictoNone:"Nothing found. Try another word.",
    pictoLoad:"Searching…", pictoErr:"Could not load pictos (internet required).",
    pictoCredit:"Pictos: <a href='https://arasaac.org' target='_blank'>ARASAAC</a> (CC BY-NC-SA, Gobierno de Aragón). Also nice: <a href='https://www.sclera.be' target='_blank'>sclera.be</a> (free download, then add via Upload).",
    upload:"📷 Choose an image…",
    upHint:"Tip: square picture, white or transparent background, one clear object, no text in the picture.",
    save:"Save", cancel:"Cancel",
    imgCatalog:"Image catalogue", imgSearch:"Search by name, folder or theme…",
    imgOpenLibrary:"Open image library", imgLanguageHint:"All starter pictures, custom word cards and uploads are collected here.",
    imgWordThemes:"Language themes",
    imgFolders:"Images and folders", imgUpload:"Upload images",
    imgChooseFiles:"Choose one or more images…", imgFolder:"Folder", imgThemes:"Themes",
    imgNewTheme:"New theme…", imgAddTheme:"Add theme", imgEdit:"Edit image", imgName:"Name",
    imgAllThemes:"All themes", imgAllScopes:"All sources", imgAllFolders:"All folders", imgFolderRoot:"Root folder",
    imgScopeGlobal:"System", imgScopeSchool:"School", imgScopePersonal:"My images",
    imgQuotaUsed:"{used} used", imgQuotaOf:"limit {limit}", imgSchoolQuota:"school: {used} of {limit}",
    imgUnlimited:"Unlimited", imgNoResults:"No images found.", imgNoManage:"You cannot manage this item.",
    imgLoginRequired:"Log in to use the image catalogue.", imgInvalidFile:"Choose a valid image.",
    imgFileTooLarge:"An image may be at most 50 MB.", imgUploadFailed:"Upload failed.",
    imgUploading:"Uploading images…", imgUploaded:"Images added ✓", imgUntitled:"Image",
    imgLoading:"Loading images…", imgSaved:"Image saved ✓", imgDeleted:"Image deleted ✓",
    imgThemeAdded:"Theme added ✓", imgStorageAdmin:"Image storage limits",
    imgQuotaUsage:"{used} used · {limit}", imgQuotaDefault:"Default", imgQuotaCustom:"Custom",
    imgPickSchool:"— pick a school —", imgSystemScope:"System (no school)",
    imgQuotaDefaultOf:"Default ({limit})",
    imgQuotaMb:"limit in MB", imgQuotaInvalid:"Enter a valid limit.", imgSchools:"Schools",
    imgUsers:"Users", imgSearchUsers:"Search user…",
    cats:["Animals","Food","Nature","Transport","Things","Body"],
    notesPh:"Write here…", notesColor:"Note colour", notesLarge:"Large letters", notesCount:"{count} characters",
    start:"Start", pause:"Pause", reset:"Reset", min:"min",
    tmDigits:"Digits", tmVisual:"Visual clock", tmBoth:"Both", tmSound:"Sound on/off",
    tmHint:"Drag the red disc to set the time.",
    login:"Log in", loginBtn:"Log in", registerBtn:"Create account", logout:"Log out",
    settingsTitle:"Settings", tabLogin:"Log in", tabLinkCode:"Link code", busy:"Please wait…",
    stAccount:"Account", stPassword:"Password", stSession:"Session",
    stSearchPh:"Search settings…", stNoResults:"Nothing found.",
    stOpenSection:"open this section",
    stGroupPersonal:"Personal", stGroupSchool:"School", stGroupSystem:"System",
    stAccountSub:"Your details, password and backups.",
    stViewSub:"Display on this device: role preview, theme, language and toolbar.",
    wikiTitle:"Curriculum wiki",
    wikiSub:"New SLO attainment targets for Dutch primary education, grouped by learning area.",
    wikiKicker:"Primary education · July 2026",
    wikiIntro:"Browse all 40 new attainment targets, their components and Teach's current coverage.",
    wikiAreas:"learning areas", wikiGoals:"attainment targets", wikiGoal:"Target",
    wikiGoalsRange:"Targets {range}", wikiParts:"Components",
    wikiStatusTitle:"Status of these targets",
    wikiStatusText:"These are final draft targets. Their legal introduction is being phased; the official SLO publication remains authoritative.",
    wikiOfficialSource:"Open the official SLO publication",
    wikiOfficialArea:"View {area} in the official publication",
    wikiTuleTitle:"TULE and the new learning progressions",
    wikiYearProfiles:"Language and maths year profiles",
    wikiYearProfilesText:"Practical Teach interpretation for widget tasks per year. Based on the 2026 targets and TULE; not official SLO year standards.",
    wikiYear:"Year {n}", wikiProfileGoals:"Learning goals",
    wikiTuleText:"TULE is an illustrative elaboration of the 2006 targets. New SLO learning progressions for the 2026 targets are still being developed. Teach levels are therefore not official SLO progressions.",
    wikiTuleSource:"Open TULE at SLO", wikiProgressionsSource:"Follow the development of new progressions",
    wikiSearchLabel:"Search the curriculum wiki",
    wikiSearchPlaceholder:"Search by target, domain, topic or widget…",
    wikiAreaFilter:"Filter by learning area", wikiAllAreas:"All learning areas",
    wikiCoveragePartial:"Partly in Teach", wikiCoverageSupport:"Lesson support", wikiCoverageOpen:"Not covered yet",
    wikiWidgets:"Current widgets", wikiNoResults:"No attainment targets found.",
    wikiCarefulTitle:"Use with care.",
    wikiCarefulText:"A widget practising one component does not automatically cover the full target. School-level and experience targets require different evidence from a right/wrong score.",
    widgetCurriculumInfo:"Attainment target information", widgetCurriculumIntro:"This widget contributes to the attainment targets below.",
    widgetCurriculumNone:"No direct attainment-target link has been established for this supporting widget.",
    widgetCurriculumWiki:"View this target in the curriculum wiki", widgetCurriculumAll:"Open the complete curriculum wiki",
    widgetCurriculumCareful:"A widget supports parts of a target and is not, by itself, evidence that the full target has been achieved.",
    wikiLanguageNote:"The official SLO goals and these implementation summaries are shown in Dutch.",
    stUsersSub:"Manage accounts: pupils, staff, parents and enrolments.",
    stKlassenSub:"Create, link and manage classes.",
    stToewijzSub:"Choose what a class or pupil gets to see.",
    stVoortgangSub:"Follow each pupil's results over time.",
    stScholenSub:"Schools and system managers, across all schools.",
    amSchoolMenu:"School", stSchoolMenuSub:"Manage schools, classes and users.",
    stOpslag:"Storage", stOpslagSub:"Image catalogue and storage per school.",
    stInhoud:"Content", stInhoudSub:"Welcome text, announcements and widget descriptions - editable without a release.",
    cmsWelcomeH:"Welcome text (login screen)",
    cmsAnnounceH:"Announcement for all users",
    cmsWidgetH:"Widget descriptions (library)",
    cmsActive:"Show announcement", cmsLevelInfo:"information", cmsLevelWarn:"important",
    cmsSaved:"Saved ✓", cmsNl:"Nederlands", cmsEn:"English",
    cmsWidgetPick:"— pick a widget… —",
    cmsWidgetHint:"Leave empty for the default description.",
    cmsShortcutsH:"System-wide content",
    cmsShortcutsHint:"Share anchor diagrams and boards through the shared library (🌐 System folder in the explorer); images through the catalogue. Everyone can copy them from there.",
    cmsOpenShared:"🌐 Boards & anchor diagrams", cmsOpenImages:"🖼 Image catalogue",
    stBackups:"Backups", backupsNote:"Automatically kept earlier versions of your boards and words.",
    backupsEmpty:"No backups yet.", backupRestore:"restore", backupRestoreConfirm:"sure?",
    backupRestored:"Version restored ✓",
    stView:"Display", vwTheme:"Theme", vwLight:"Light", vwDark:"Dark", vwAuto:"Auto",
    vwContrast:"High contrast", vwOn:"On", vwOff:"Off", vwLang:"Language",
    vwTbar:"Menu bar", vwTop:"Top", vwLeft:"Left", vwRight:"Right",
    vwMotion:"Animations", vwGlass:"Glass effect",
    vwRole:"View as", vwRoleSystem:"System", vwRoleAdmin:"School administrator", vwRoleTeacher:"Teacher", vwRoleParent:"Parent", vwRolePupil:"Pupil",
    vwRoleNote:"Only the interface changes. You remain signed in as system manager; server permissions and data do not change.",
    vwPreview:"Preview mode", vwPreviewReset:"Return to system",
    vwParentPreview:"Preview of the parent portal. Real child data and actions are disabled in this view.",
    vwPupilPreview:"Preview of the pupil environment using language and maths widgets from the current board. Controls and progress are disabled.",
    vwPupilAddWidget:"Add widget", vwPupilChooseWidget:"Choose a pupil widget",
    vwPupilAddWidgetNote:"Only language and maths widgets supported in the pupil environment are shown.",
    vwNote:"These preferences apply to this device.",
    pwChanged:"Password changed ✓", pwCurrentPh:"current password",
    namePh:"name", passPh:"password",
    guestNote:"Without logging in nothing is saved. Log in with your school account to keep everything on the server.",
    storedNote:"Your work is stored on the school server and available on any board.",
    errLogin:"Unknown name or wrong password.",
    schoolSel:"— choose your school (empty = overarching) —",
    linkIntro:"New account? Activate it with your link code:",
    linkBtn:"Activate account", pwChange:"Change", pwNewPh:"new password (min. 8, incl. number)",
    pwConfirmPh:"repeat password", pwShow:"👁 Show", pwHide:"🙈 Hide",
    errPwMatch:"Passwords don't match.",
    codePh:"link code",
    roleSuper:"System manager", roleAdmin:"School administrator",
    roleTeacher:"Group leader", rolePupil:"Pupil", roleParent:"Parent",
    tabParentReg:"Parents",
    parentRegIntro:"Create a parent account and follow your child - even if the school doesn't take part (yet):",
    parentRegBtn:"Create account",
    parentTitle:"My children",
    parentNoChildren:"No children linked yet.",
    parentAddChild:"＋ Child", parentChildNamePh:"your child's name…", parentAddBtn:"Add",
    parentPwNote:"Keep this password: your child logs in with it (leave the school field empty).",
    parentLinkTitle:"＋ Parent code", parentLinkPh:"parent code from school…", parentLinkBtn:"Link",
    parentLinkNote:"Ask the school for a parent code for your child.",
    parentHome:"home",
    parentApply:"🏫 Apply", parentApplied:"applied to", parentApplyBtn:"Apply",
    parentSchoolPh:"search your school…",
    parentUnlink:"Unlink",
    parentUnlinkWarn:"Removes only the link; your child's account remains.",
    parentProgress:"📈 Progress", parentProgressEmpty:"No progress yet.",
    parentLevel:"🎯 Learning level", parentLevelTaal:"Language", parentLevelRekenen:"Maths",
    parentLevelYear:"Year", parentLevelPath:"Path", parentLevelSave:"Save",
    parentLevelSaved:"Learning level saved.",
    dtLen:"Length", dtContrast:"High contrast",
    dtLock:"Lock in place: can no longer move or rotate, only draw along it",
    dtMode:"Basic: big main angles and whole centimetres. Full: degrees every 2° with a double scale, millimetres and parallel guide lines.",
    dtModeBasic:"basic", dtModeFull:"full",
    pupilEmpty:"Your teacher hasn't set up anything for you yet.",
    pupilWatching:"watching",
    amUsers:"Users", amClasses:"Classes", amSchools:"Schools", amOverarching:"System",
    amPickSchoolHint:"First pick a school above.", amPickSchool:"Pick a school",
    amPupils:"Pupils", amPupilOne:"Pupil", amEdit:"Edit",
    amAdmins:"School admins", amAdminOne:"School admin",
    amClassAdd:"— add to class… —", amClassRemove:"Remove from this class",
    amSure:"are you sure?", amDelete:"delete",
    amFieldName:"Name", amFieldRole:"Role", amFieldClass:"Class", amFieldClasses:"Classes",
    amFieldPw:"Password", amFieldActions:"Actions", amPwTypePh:"type a password…",
    amNewPwWarn:"Generates a new password. The old one stops working and the user is signed out everywhere.",
    amNewCodeWarn:"Generates a new link code. The current password stops working immediately; the user must re-activate.",
    amDeleteWarn:"Deletes this account permanently, including boards and words.",
    amResultPw:"New password", amResultCode:"New link code",
    amColStatus:"Status", amNeverLoggedIn:"not signed in yet", amFieldSchool:"School", amStatusActive:"active",
    amNoSchool:"— no school —", amNoSchoolGroup:"No school", amShowMore:"show more",
    amMoveToSchool:"— move to school… —", amFieldMoveSchool:"Move to", amPickSchoolFirst:"First pick a school above to see or create its classes.",
    amNoClassesHere:"This school has no classes yet. Existing classes may belong to another school — pick that school above, or create a new class below.",
    amLoadError:"Failed to load",
    amDetailEmpty:"Select a user on the left to edit, or create a new one.",
    amNewUser:"New user", amRequestOne:"Enrolment", amReqNew:"new",
    amParents:"Parents",
    amParentCode:"Parent code", amResultParentCode:"Parent code",
    amParentCodeWarn:"Generates a one-time parent code; a previous code stops working.",
    amLinkRequests:"Enrolments", amRequestVia:"via",
    amAdopt:"Adopt", amAdoptUserPh:"different username (on conflict)…",
    amMatchPick:"— link to existing pupil… —", amMatchBtn:"Link",
    amReject:"Reject", amRejectWarn:"Rejects the enrolment; the request disappears for the parent.",
    amSchoolNamePh:"name of the school…", amNewSchoolConfirm:"Create:",
    amDeleteSchoolWarn:"Deletes this school with all its classes and users. This cannot be undone.",
    amClassNamePh:"name of the class…",
    amDeleteClassWarn:"Deletes this class; pupils remain but end up without a class.",
    amNewSchool:"＋ School", amNewClass:"＋ Class", amNewTeacher:"＋ Group leader",
    amNewAdmin:"＋ School admin", amNewSuper:"＋ System manager",
    amNewPupil:"＋ Pupil", amUserPh:"username…", amNamePh:"name…",
    amSearchPh:"search by name…",
    amCode:"link code", amNewCode:"new code", amPw:"password",
    amNoClass:"— no class —", amPending:"not yet activated",
    amCouple:"link teacher", amAllSchools:"— all schools —", amSuperGroup:"System",
    amBack:"Back", amStaff:"Staff", amSupers:"System managers",
    amUnassigned:"Unassigned", amNoResults:"No results",
    amCreated:"Created! Pass on this link code:",
    amPupilMade:"Pupil created. Password:",
    amPwHidden:"already used", amGenerate:"generate password",
    amNewPw:"new password", amPwSet:"Password set:",
    amPwOptional:"password (empty = link code)",
    amOwnPassword:"Your own password, to confirm", amOwnPasswordPh:"your current password…",
    amAssignments:"Assignments", amAssignClasses:"Per class (default)", amAssignPupils:"Per pupil (override)",
    amPickPupil:"— pick a pupil —", amNoAssignment:"— no assignment —",
    amAssignedAs:"Assigned:", amAssign:"Assign", amAssignSaved:"Assignment saved.",
    amUnlink:"Unlink",
    amWholeBoard:"— whole board —", amModeWatch:"watch", amModeWork:"work",
    cast:"Cast", castTitle:"Cast board", castWhat:"What are you casting?",
    castClasses:"Classes", castPupils:"Pupils",
    castNoClasses:"No classes in this school.", castNoPupils:"No pupils in this school.",
    castActive:"✓ Active",
    amProgress:"Progress", amProgressEmpty:"No progress for this pupil yet.",
    amProgressLast14Days:"Last 14 days", amProgressMistakes:"Recent mistakes",
    amProgressTimeline:"Full timeline",
    amProgressGiven:"Given: {answer}", amProgressExpected:"Correct: {answer}",
    amExportClass:"Export by class", amExportCsv:"Export as CSV", amPickClassHint:"Pick a class first.",
    amExportColPupil:"Pupil", amExportColWidget:"Widget", amExportColAttempts:"Attempts",
    amExportColCorrect:"Correct", amExportColStars:"Stars", amExportColDate:"Date",
    amExportColUsername:"Username",
    amExportDone:"Export downloaded ✓",
    amLevels:"Class management", amLevelsSub:"Set a year group and level per subject.",
    amLevelYearGroup:"Year group", amLevelLevel:"Level", amYearGroupN:"Year {n}",
    amLevelClassDefault:"Class default", amLevelPupils:"Pupils",
    amLevelInherited:"inherited from class", amLevelNone:"not set yet",
    amLevelReset:"reset to class default", amLevelSaved:"Saved ✓",
    amSubject_taal:"Language", amSubject_rekenen:"Maths", amSubject_world:"World orientation",
    amConfirmDel:"Are you sure you want to delete this user?",
    amCopy:"copy", amCopyAll:"copy all",
    amResetClass:"reset class passwords", amResetSchool:"reset all pupil passwords",
    amConfirmReset:"Renew all pupil passwords for this class?",
    amConfirmResetSchool:"Renew all pupil passwords for this whole school? This cannot be undone.",
    amResetNone:"No pupils to reset.",
    errExists:"This name already exists.",
    errName:"Name: 2–20 letters or digits.",
    errPass:"Password: at least 4 characters.",
    errCrypto:"Login does not work in this browser.",
    hello:"Hi", boardSaved:"Saved ✓", loginFirst:"Log in first",
    saving:"Saving…", saveFailed:"⚠ Not saved",
    saveConflict:"⚠ Edited elsewhere", saveConflictHint:"Edited in another tab. Click to load the latest version (your unsaved changes here will be lost)."
  }
};
let LANG = "nl";
/* vangnet: ontbreekt een sleutel in de actieve taal, val terug op NL en
   daarna op de sleutelnaam zelf - een knop mag nooit zonder tekst staan */
const T = k => I18N[LANG][k] ?? I18N.nl[k] ?? k;
/* effective CSS zoom of the app (display-size setting); pointer coordinates
   are visual pixels, absolute positions are layout pixels → divide by VZ() */
const VZ = ()=>{ const z = parseFloat(document.body.style.zoom); return z>0 ? z : 1; };

function applyI18n(){
  document.querySelectorAll("[data-i18n]").forEach(el=>{ el.textContent = T(el.dataset.i18n); });
  document.querySelectorAll("#langToggle button").forEach(b=>b.classList.toggle("active", b.dataset.lang===LANG));
  document.getElementById("liName").placeholder = T("namePh");
  document.getElementById("liPass").placeholder = T("passPh");
  document.getElementById("liCode").placeholder = T("codePh");
  document.getElementById("liPassNew").placeholder = T("pwNewPh");
  document.getElementById("liPassNew2").placeholder = T("pwConfirmPh");
  document.getElementById("prName").placeholder = T("namePh");
  document.getElementById("prPass").placeholder = T("pwNewPh");
  document.getElementById("prPass2").placeholder = T("pwConfirmPh");
  document.getElementById("ownPwCurrent").placeholder = T("pwCurrentPh");
  document.getElementById("ownPw").placeholder = T("pwNewPh");
  document.getElementById("ownPw2").placeholder = T("pwConfirmPh");
  document.getElementById("btnLiPassToggle").textContent = T("pwShow");
  document.getElementById("btnOwnPwToggle").textContent = T("pwShow");
  document.getElementById("btnMute").title = T("muteAll");
  updateUserUI();
  document.dispatchEvent(new CustomEvent("langchange"));
}
document.querySelectorAll("#langToggle button").forEach(b=>{
  b.addEventListener("click", ()=>{
    LANG=b.dataset.lang;
    try{ localStorage.setItem("teach.lang", LANG); }catch(e){}
    applyI18n();
  });
});
document.getElementById("btnFs").addEventListener("click", ()=>{
  if(document.fullscreenElement) document.exitFullscreen(); else document.documentElement.requestFullscreen();
});

/* =========================================================
   Accounts & sessies — via de server-API (src/api.js)
   Rollen: super (systeemmanager), admin (school), teacher (groepsleiding),
   pupil (leerling). Zonder inloggen wordt niets bewaard.
==========================================================*/
// Oude bearer-tokens worden bewust verwijderd; sessies lopen via een HttpOnly-cookie.
try{ localStorage.removeItem("teach.token"); }catch(e){}
let currentUser = null;   /* {id, username, displayName, role, schoolId, classId} */

async function api(path, opts={}){
  /* alleen Content-Type meesturen als er ook echt een JSON-body is (bv. niet
     bij DELETE) - anders weigert Fastify's parser het lege lichaam met een
     ondoorzichtige "Body cannot be empty when content-type is set to
     'application/json'", vóórdat een route-handler zelfs maar draait */
  const headers = { ...(opts.body ? { "Content-Type": "application/json" } : {}), ...(opts.headers||{}) };
  const r = await fetch("/api" + path, {
    credentials: "same-origin",
    method: opts.method || (opts.body ? "POST" : "GET"),
    headers,
    body: opts.body ? JSON.stringify(opts.body) : undefined
  });
  const j = await r.json().catch(()=>({}));
  if(!r.ok){
    const err = new Error(j.error || ("fout " + r.status));
    err.status = r.status;
    throw err;
  }
  return j;
}

/* =========================================================
   Opslaan - alles van de gebruiker staat op de server.
   Autosave: elke wijziging plant (debounced) een save; de status
   is altijd zichtbaar op de opslaan-knop en fouten worden NIET
   meer ingeslikt (die stilte verborg de 1MB-limiet-bug).
==========================================================*/
let saveTimer = null;
let lastSaveError = null;
/* rev van de data zoals geladen van de server; gaat als x-data-rev mee met
   elke save zodat de server een verouderde schrijver kan weigeren (409) */
let DATA_REV = 0;
let saveConflict = false;
let saveInFlight = false;
function canPersist(){
  /* ouders slaan geen eigen borden-data op (het portaal werkt met gekoppelde
     kind-accounts); schoolleerlingen ook niet (zij zien de toewijzing van de
     leerkracht). Thuiskinderen (leerling zónder school, ouderportaal) hebben
     wél een eigen whiteboard met eigen opslag. */
  if(!currentUser) return false;
  const role=typeof activeRole==="function" ? activeRole() : currentUser.role;
  if(role==="parent") return false;
  if(role==="pupil") return currentUser.role==="pupil" && !currentUser.schoolId;
  return true;
}
/* welke secties er sinds de laatste geslaagde save zijn gewijzigd; een save
   verstuurt alleen die secties i.p.v. altijd de complete blob (die MB's kan
   zijn door borden met afbeeldingen) */
const DIRTY = new Set();
const DATA_SECTIONS = { themes: ()=>THEMES, generalExtra: ()=>GENERAL_EXTRA, boards: ()=>BS, anchors: ()=>ANCHOR_LIB };
function persistUser(){
  if(!canPersist()) return Promise.resolve(true);
  const todo = [...DIRTY].filter(s=>s in DATA_SECTIONS);
  const run = async ()=>{
    if(!todo.length || todo.length >= Object.keys(DATA_SECTIONS).length){
      /* alles (of niets specifieks) gewijzigd: volledige save als terugval */
      const res = await api("/me/data", { method:"PUT", headers:{ "x-data-rev": String(DATA_REV) }, body:{
        themes: THEMES, generalExtra: GENERAL_EXTRA, boards: BS, anchors: ANCHOR_LIB
      }});
      if(typeof res.rev === "number") DATA_REV = res.rev;
    }else{
      /* sequentieel, niet parallel: elke sectie-PUT bumpt de rev en de
         volgende moet de nieuwe rev meesturen om geen 409 te krijgen */
      for(const s of todo){
        const res = await api("/me/data/"+s, { method:"PUT", headers:{ "x-data-rev": String(DATA_REV) }, body: DATA_SECTIONS[s]() });
        if(typeof res.rev === "number") DATA_REV = res.rev;
      }
    }
    DIRTY.clear();
    lastSaveError = null;
    saveConflict = false;
    return true;
  };
  return run().catch(e=>{ lastSaveError = e.message; saveConflict = e.status === 409; return false; });
}
/* status op de opslaan-knop: idle / saving / saved / error / conflict */
function setSaveStatus(state){
  const btn = document.getElementById("btnSave");
  const lbl = btn.querySelector("span");
  btn.classList.remove("ok","err");
  btn.title = "";
  if(state==="saving"){ lbl.textContent = T("saving"); }
  else if(state==="saved"){ lbl.textContent = T("boardSaved"); btn.classList.add("ok"); }
  else if(state==="conflict"){
    lbl.textContent = T("saveConflict");
    btn.classList.add("err");
    btn.title = T("saveConflictHint");
  }
  else if(state==="error"){
    lbl.textContent = T("saveFailed");
    btn.classList.add("err");
    btn.title = lastSaveError || "";
  }
  else lbl.textContent = T("saveBoard");
}
let saveStatusTimer = null;
async function doSave(){
  if(!canPersist()) return false;
  clearTimeout(saveTimer);
  saveTimer = null;
  stashCurrent();
  setSaveStatus("saving");
  saveInFlight = true;
  const ok = await persistUser();
  saveInFlight = false;
  clearTimeout(saveStatusTimer);
  setSaveStatus(ok ? "saved" : (saveConflict ? "conflict" : "error"));
  /* een fout blijft staan tot een geslaagde save; succes ebt weg */
  if(ok) saveStatusTimer = setTimeout(()=>setSaveStatus("idle"), 2000);
  return ok;
}
/* niet weg-navigeren met onopgeslagen werk: geplande/lopende save of een
   mislukte laatste save betekent dat de server nog niet alles heeft */
window.addEventListener("beforeunload", (e)=>{
  if(!canPersist()) return;
  if(saveTimer || saveInFlight || lastSaveError){ e.preventDefault(); e.returnValue = ""; }
});
/* autosave: door alles aan te roepen wat het bord of de woorden wijzigt;
   de optionele sectie markeert wat er precies vuil is (zie DIRTY) */
function scheduleSave(section){
  if(section) DIRTY.add(section);
  if(!canPersist()) return;
  clearTimeout(saveTimer);
  saveTimer = setTimeout(doSave, 2500);
}
function persistWords(){
  DIRTY.add("themes");
  DIRTY.add("generalExtra");
  scheduleSave();
}
function generalExtraFromData(data){
  return (data && data.generalExtra) ? data.generalExtra : {nl:[], en:[]};
}
/* prefetchedData: alleen gebruikt door de opstart-boot in app.js, die /me/data
   al parallel met /auth/me heeft opgehaald (zie daar) i.p.v. serieel te
   wachten - een leerling/ouder gebruikt het resultaat toch niet (zie de twee
   vroege returns hieronder), dus dat verzoek is nooit verspild werk, alleen
   soms ongebruikt. Elke andere aanroep (na inloggen, na een save-conflict)
   geeft niets mee en haalt gewoon vers op, zoals voorheen. */
async function hydrateFromServer(prefetchedData){
  /* schoolleerlingen hebben geen eigen borden - zij zien enkel wat de
     leerkracht heeft toegewezen (zie pupil.js), nooit het whiteboard.
     Thuiskinderen (leerling zonder school, ouderportaal) vallen hier expres
     buiten: zij krijgen hieronder het volledige whiteboard met eigen opslag. */
  if(currentUser && currentUser.role === "pupil" && currentUser.schoolId){
    THEMES = {nl:[],en:[]};
    GENERAL_EXTRA = {nl:[],en:[]};
    stopParentView();
    startPupilView();
    document.dispatchEvent(new CustomEvent("userchange"));
    return;
  }
  /* ouders krijgen het portaal (parent.js) i.p.v. het whiteboard */
  if(currentUser && currentUser.role === "parent"){
    THEMES = {nl:[],en:[]};
    GENERAL_EXTRA = {nl:[],en:[]};
    stopPupilView();
    startParentView();
    document.dispatchEvent(new CustomEvent("userchange"));
    return;
  }
  stopPupilView();
  stopParentView();
  /* Een thuiskind beheert het eigen leerjaar. Haal dit op voordat de
     bordwidgets mounten, zodat de eerste opdracht meteen bij de keuze past. */
  if(currentUser && currentUser.role === "pupil" && !currentUser.schoolId &&
     typeof refreshSelfLearningLevels === "function") await refreshSelfLearningLevels();
  const res = prefetchedData || await api("/me/data");
  const d = res.data || {};
  DATA_REV = typeof res.rev === "number" ? res.rev : 0;
  THEMES = themesFromData(d);
  GENERAL_EXTRA = generalExtraFromData(d);
  ANCHOR_LIB = Array.isArray(d.anchors) ? d.anchors : [];
  BS = boardsFromData(d);
  document.dispatchEvent(new CustomEvent("wordschange"));
  loadCurrentSlot();
  document.dispatchEvent(new CustomEvent("userchange"));
}
function resetToGuest(){
  currentUser = null;
  if(typeof refreshSelfLearningLevels === "function") refreshSelfLearningLevels();
  stopPupilView();
  stopParentView();
  THEMES = {nl:[],en:[]};
  GENERAL_EXTRA = {nl:[],en:[]};
  ANCHOR_LIB = [];
  BS = freshBS();
  loadCurrentSlot();
  updateUserUI();
  document.dispatchEvent(new CustomEvent("wordschange"));
  document.dispatchEvent(new CustomEvent("userchange"));
}

/* login UI */
const loginWrap = document.getElementById("loginWrap");
const loginMsg  = document.getElementById("loginMsg");
const settingsWrap = document.getElementById("settingsWrap");
const settingsMsg  = document.getElementById("settingsMsg");
const roleKey = r => r==="super" ? "roleSuper" : r==="admin" ? "roleAdmin" : r==="teacher" ? "roleTeacher" : r==="parent" ? "roleParent" : "rolePupil";
function updateUserUI(){
  document.getElementById("userLbl").textContent = currentUser ? currentUser.displayName : T("login");
  document.getElementById("btnUser").classList.toggle("on", !!currentUser);
  /* welke instellingen-secties zichtbaar zijn bepaalt settings.js per rol
     (sectieregister); hier alleen nog de accountgegevens zelf */
  if(currentUser){
    document.getElementById("helloName").textContent = currentUser.displayName;
    const roles = [currentUser.role, ...(currentUser.extraRoles||[])];
    document.getElementById("helloRole").textContent = roles.map(r=>T(roleKey(r))).join(" + ");
    document.getElementById("pwSection").style.display = can("password.own.change") ? "" : "none";
  }
}
/* login-modal tabs: "inloggen" / "koppelcode activeren" / "ouderaccount maken" */
function switchLoginTab(tab){
  document.querySelectorAll("#loginModal .ed-tabs button").forEach(b=>b.classList.toggle("active", b.dataset.tab===tab));
  document.getElementById("loginBox").style.display = tab==="login" ? "block" : "none";
  document.getElementById("linkBox").style.display  = tab==="link"  ? "block" : "none";
  document.getElementById("parentRegBox").style.display = tab==="parentreg" ? "block" : "none";
}
document.querySelectorAll("#loginModal .ed-tabs button").forEach(b=>{
  b.addEventListener("click", ()=>switchLoginTab(b.dataset.tab));
});
async function loadSchools(){
  const sel = document.getElementById("liSchool");
  try{
    const list = await api("/schools");
    sel.innerHTML = `<option value="">${T("schoolSel")}</option>` +
      list.map(x=>`<option value="${x.id}">${x.name.replace(/</g,"&lt;")}</option>`).join("");
  }catch(e){ sel.innerHTML = `<option value="">${T("schoolSel")}</option>`; }
}
/* wachtwoordvelden pas op verzoek: de kop "Wachtwoord" klapt het blok uit */
{
  const pwHead = document.getElementById("pwToggleHead");
  const pwBlock = document.getElementById("ownPwBlock");
  pwHead.addEventListener("click", ()=>{
    pwBlock.classList.toggle("open");
    pwHead.classList.toggle("open");
  });
}
/* openSettings() zelf woont in settings.js (sectieregister + zoeken);
   de knoppen hieronder roepen hem via window aan */
/* reservekopieën (Instellingen → Account): automatisch bewaarde eerdere
   versies van de borddata, met een arm-then-confirm herstelknop zoals de
   verwijderknop in de boardStrip */
async function loadBackups(){
  const head = document.getElementById("backupsHead");
  const block = document.getElementById("backupsBlock");
  const list = document.getElementById("backupsList");
  const show = canPersist();
  head.style.display = block.style.display = show ? "" : "none";
  if(!show) return;
  list.textContent = "";
  let versions = [];
  try{ versions = (await api("/me/data/versions")).versions || []; }
  catch(e){ list.textContent = e.message; return; }
  if(!versions.length){
    const d = document.createElement("div");
    d.className = "guestnote"; d.textContent = T("backupsEmpty");
    list.appendChild(d);
    return;
  }
  versions.forEach(v=>{
    const row = document.createElement("div");
    row.className = "lrow";
    const when = document.createElement("span");
    when.className = "am-code";
    when.textContent = new Date(v.createdAt).toLocaleString(LANG==="nl" ? "nl-NL" : "en-GB");
    const btn = document.createElement("button");
    btn.className = "tbtn ghost";
    btn.type = "button";
    btn.textContent = T("backupRestore");
    let armed = false;
    btn.addEventListener("click", async ()=>{
      if(!armed){ armed = true; btn.textContent = T("backupRestoreConfirm"); btn.classList.add("danger"); return; }
      try{
        const res = await api("/me/data/restore", { body:{ versionId: v.id } });
        DATA_REV = typeof res.rev === "number" ? res.rev : DATA_REV;
        const d = res.data || {};
        THEMES = themesFromData(d);
        GENERAL_EXTRA = generalExtraFromData(d);
        ANCHOR_LIB = Array.isArray(d.anchors) ? d.anchors : [];
        BS = boardsFromData(d);
        document.dispatchEvent(new CustomEvent("wordschange"));
        loadCurrentSlot();
        settingsMsg.textContent = T("backupRestored");
        settingsMsg.classList.add("ok");
        loadBackups();
      }catch(e){ settingsMsg.textContent = e.message; }
    });
    row.appendChild(when);
    row.appendChild(btn);
    list.appendChild(row);
  });
}
document.getElementById("btnUser").addEventListener("click", ()=>{
  if(currentUser){ openSettings(); return; }
  loginMsg.textContent = ""; loginMsg.classList.remove("ok");
  switchLoginTab("login");
  loadSchools();
  loginWrap.classList.add("open");
});
/* gast-ingang naar de weergave-instellingen vanuit het inlogscherm */
document.getElementById("btnGuestView").addEventListener("click", ()=>{
  loginWrap.classList.remove("open");
  openSettings();
});
document.getElementById("btnSettingsClose").addEventListener("click", ()=>settingsWrap.classList.remove("open"));
loginWrap.addEventListener("click", e=>{ if(e.target===loginWrap) loginWrap.classList.remove("open"); });
settingsWrap.addEventListener("click", e=>{ if(e.target===settingsWrap) settingsWrap.classList.remove("open"); });

async function afterLogin(res){
  currentUser = res.user;
  updateUserUI();
  loginWrap.classList.remove("open");
  await hydrateFromServer();
}
/* laadstatus op een knop tijdens een async actie, altijd hersteld na afloop */
async function withBusy(btn, fn){
  const orig = btn.textContent;
  btn.disabled = true; btn.textContent = T("busy");
  try{ await fn(); }
  finally{ btn.disabled = false; btn.textContent = orig; }
}
document.getElementById("btnLogin").addEventListener("click", async ()=>{
  const btn = document.getElementById("btnLogin");
  const schoolId = document.getElementById("liSchool").value || null;
  const username = document.getElementById("liName").value.trim();
  const password = document.getElementById("liPass").value;
  loginMsg.classList.remove("ok");
  await withBusy(btn, async ()=>{
    try{
      await afterLogin(await api("/auth/login", { body:{ schoolId: schoolId ? +schoolId : null, username, password } }));
      document.getElementById("liPass").value = "";
    }catch(e){ loginMsg.textContent = e.message || T("errLogin"); }
  });
});
document.getElementById("liPass").addEventListener("keydown", e=>{
  if(e.key==="Enter") document.getElementById("btnLogin").click();
});
/* wachtwoord tonen/verbergen bij activeren en eigen wachtwoord wijzigen */
function pwToggle(btnId, ...fieldIds){
  const btn = document.getElementById(btnId);
  let shown = false;
  btn.addEventListener("click", ()=>{
    shown = !shown;
    fieldIds.forEach(id=>{ document.getElementById(id).type = shown ? "text" : "password"; });
    btn.textContent = T(shown ? "pwHide" : "pwShow");
  });
}
pwToggle("btnLiPassToggle", "liPassNew", "liPassNew2");
pwToggle("btnOwnPwToggle", "ownPwCurrent", "ownPw", "ownPw2");
pwToggle("btnPrPassToggle", "prPass", "prPass2");

/* ouderaccount registreren: direct ingelogd, parent.js toont daarna het portaal */
document.getElementById("btnParentReg").addEventListener("click", async ()=>{
  const btn = document.getElementById("btnParentReg");
  const username = document.getElementById("prName").value.trim();
  const password = document.getElementById("prPass").value;
  const password2 = document.getElementById("prPass2").value;
  loginMsg.classList.remove("ok");
  if(password !== password2){ loginMsg.textContent = T("errPwMatch"); return; }
  await withBusy(btn, async ()=>{
    try{
      await afterLogin(await api("/auth/register-parent", { body:{ username, password } }));
      document.getElementById("prPass").value = "";
      document.getElementById("prPass2").value = "";
    }catch(e){ loginMsg.textContent = e.message; }
  });
});

/* account activeren met een koppelcode */
document.getElementById("btnLink").addEventListener("click", async ()=>{
  const btn = document.getElementById("btnLink");
  const code = document.getElementById("liCode").value.trim().toUpperCase();
  const password = document.getElementById("liPassNew").value;
  const password2 = document.getElementById("liPassNew2").value;
  loginMsg.classList.remove("ok");
  if(password !== password2){ loginMsg.textContent = T("errPwMatch"); return; }
  await withBusy(btn, async ()=>{
    try{
      await afterLogin(await api("/auth/link", { body:{ code, password } }));
      document.getElementById("liCode").value = "";
      document.getElementById("liPassNew").value = "";
      document.getElementById("liPassNew2").value = "";
    }catch(e){ loginMsg.textContent = e.message; }
  });
});
document.getElementById("btnLogout").addEventListener("click", async ()=>{
  try{ await api("/auth/logout", { method:"POST", body:{} }); }catch(e){}
  resetToGuest();
  loginWrap.classList.remove("open");
  settingsWrap.classList.remove("open");
});
/* eigen wachtwoord wijzigen (niet voor leerlingen) */
document.getElementById("btnOwnPw").addEventListener("click", async ()=>{
  const btn = document.getElementById("btnOwnPw");
  const currentPassword = document.getElementById("ownPwCurrent").value;
  const pw = document.getElementById("ownPw").value;
  const pw2 = document.getElementById("ownPw2").value;
  settingsMsg.classList.remove("ok");
  if(pw !== pw2){ settingsMsg.textContent = T("errPwMatch"); return; }
  await withBusy(btn, async ()=>{
    try{
      await api("/auth/password", { method:"PATCH", body:{ currentPassword, password: pw } });
      document.getElementById("ownPwCurrent").value = "";
      document.getElementById("ownPw").value = "";
      document.getElementById("ownPw2").value = "";
      settingsMsg.textContent = T("pwChanged"); settingsMsg.classList.add("ok");
    }catch(e){ settingsMsg.textContent = e.message; }
  });
});

/* save board */
document.getElementById("btnSave").addEventListener("click", async ()=>{
  const lbl = document.getElementById("btnSave").querySelector("span");
  if(!currentUser){
    lbl.textContent = T("loginFirst");
    setTimeout(()=>{ lbl.textContent = T("saveBoard"); }, 2200);
    loadSchools();
    loginWrap.classList.add("open");
    return;
  }
  /* na een conflict (409) niet blind overschrijven: de klik haalt eerst de
     nieuwste serverversie op, daarna kan er weer gewoon opgeslagen worden */
  if(saveConflict){
    saveConflict = false;
    lastSaveError = null;
    clearTimeout(saveTimer);
    saveTimer = null;
    await hydrateFromServer();
    setSaveStatus("idle");
    return;
  }
  clearTimeout(saveTimer);   /* expliciet opslaan gaat vóór de geplande autosave */
  await doSave();
});

/* =========================================================
   Sounds
==========================================================*/
let AC=null, MUTED=false;
const btnMute = document.getElementById("btnMute");
btnMute.addEventListener("click", ()=>{
  MUTED = !MUTED;
  btnMute.textContent = MUTED ? "🔇" : "🔊";
  btnMute.title = T("muteAll");
});
function tone(freq, dur=0.12, delay=0, type="sine", vol=0.18){
  if(MUTED) return;
  try{
    AC = AC || new (window.AudioContext||window.webkitAudioContext)();
    const o=AC.createOscillator(), g=AC.createGain();
    o.type=type; o.frequency.value=freq;
    g.gain.setValueAtTime(vol, AC.currentTime+delay);
    g.gain.exponentialRampToValueAtTime(0.001, AC.currentTime+delay+dur);
    o.connect(g); g.connect(AC.destination);
    o.start(AC.currentTime+delay); o.stop(AC.currentTime+delay+dur+0.02);
  }catch(e){}
}
const sndGood = ()=> tone(880,0.1);
const sndBad  = ()=> tone(180,0.18,0,"square",0.10);
const sndWin  = ()=>{ [523,659,784,1047].forEach((f,i)=>tone(f,0.16,i*0.12,"triangle",0.2)); };