(function(){
  if (window.__denCritter) return;
  window.__denCritter = true;

  var st = document.createElement('style');
  st.textContent =
    '.paw-trail{position:fixed;pointer-events:none;z-index:9999;animation:pawfade 1s linear forwards;filter:drop-shadow(0 0 3px currentColor);}' +
    '@keyframes pawfade{0%{opacity:.9;transform:scale(1);}100%{opacity:0;transform:scale(.5) translateY(10px);}}' +
    '.emote{position:fixed;pointer-events:none;z-index:9999;font-size:15px;animation:emoterise 1.2s ease-out forwards;}' +
    '.emote.say{font-size:12px;font-weight:bold;color:#c9b8ff;text-shadow:0 0 6px #8f7bff,1px 1px 0 #120a20;white-space:nowrap;font-family:"Comic Sans MS","Comic Sans",cursive;}' +
    '@keyframes emoterise{0%{opacity:0;transform:translateY(0) scale(.6);}15%{opacity:1;}100%{opacity:0;transform:translateY(-34px) scale(1.15);}}' +
    '.denbed{position:fixed;z-index:9998;pointer-events:none;animation:bedin .6s ease-out;transition:opacity .45s ease;}' +
    '@keyframes bedin{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:translateY(0);}}' +
    '.denbed .lump{animation:breathe 2.8s ease-in-out infinite;transform-origin:38px 24px;}' +
    '@keyframes breathe{0%,100%{transform:scaleY(1);}50%{transform:scaleY(1.17);}}' +
    'body.denzoom *,body.denzoom *::before,body.denzoom *::after{animation-duration:.22s !important;}' +
    '.denhole{position:fixed;z-index:9997;pointer-events:none;transition:opacity .55s ease;animation:holein .5s ease-out;}' +
    '@keyframes holein{from{opacity:0;transform:scale(.6);}to{opacity:1;transform:scale(1);}}' +
    '.dentab{position:fixed;right:14px;bottom:0;text-align:left;z-index:10000;background:#1b1229;color:#8f7bff;border:2px ridge #6b5a8a;border-bottom:none;border-radius:8px 8px 0 0;font-family:"Courier New",monospace;font-size:11px;padding:3px 10px;cursor:pointer;opacity:.55;transition:opacity .2s;user-select:none;}' +
    '.dentab:hover{opacity:1;}' +
    '.denterm{position:fixed;right:8px;bottom:0;z-index:10000;width:300px;max-width:86vw;background:#0d0818;border:3px ridge #6b5a8a;border-bottom:none;border-radius:10px 10px 0 0;font-family:"Courier New",monospace;font-size:12px;padding:8px;display:none;text-align:left;}' +
    '.denterm.open{display:block;}' +
    '.denterm .dout{height:170px;overflow-y:auto;white-space:pre-wrap;word-break:break-word;color:#c9b8ff;}' +
    '.denterm .dline{display:flex;gap:6px;margin-top:5px;align-items:center;}' +
    '.denterm .dprompt{color:#ff6ec7;white-space:nowrap;}' +
    '.denterm input{flex:1;background:transparent;border:none;outline:none;color:#a8ffe0;font-family:inherit;font-size:12px;}' +
    '.denwx{position:fixed;top:0;left:0;right:0;bottom:0;pointer-events:none;z-index:9996;overflow:hidden;}' +
    '.denwx i{position:absolute;top:-24px;display:block;animation-name:denfall;animation-timing-function:linear;animation-fill-mode:forwards;}' +
    '.denwx i.r{width:2px;height:15px;background:linear-gradient(180deg,rgba(79,195,255,0),rgba(79,195,255,.85));border-radius:1px;}' +
    '.denwx i.s{color:#fff;font-size:12px;line-height:1;}' +
    '@keyframes denfall{from{transform:translateY(0);}to{transform:translateY(104vh);}}' +
    '.dentreat{position:fixed;z-index:9997;pointer-events:none;font-size:19px;line-height:1;animation:denbob 1.3s ease-in-out infinite;filter:drop-shadow(0 0 4px #ffb3de);}' +
    '@keyframes denbob{0%,100%{transform:translateY(0);}50%{transform:translateY(-5px);}}';
  document.head.appendChild(st);

  var actx = null;
  function yipSound(){
    try {
      if (!actx) actx = new (window.AudioContext || window.webkitAudioContext)();
      if (actx.state === 'suspended') actx.resume();
      var o = actx.createOscillator(), g = actx.createGain();
      var t = actx.currentTime;
      o.type = 'sine';
      o.frequency.setValueAtTime(700 + Math.random() * 200, t);
      o.frequency.exponentialRampToValueAtTime(1400 + Math.random() * 300, t + 0.07);
      o.frequency.exponentialRampToValueAtTime(600, t + 0.14);
      g.gain.setValueAtTime(0.12, t);
      g.gain.exponentialRampToValueAtTime(0.001, t + 0.16);
      o.connect(g); g.connect(actx.destination);
      o.start(t); o.stop(t + 0.18);
    } catch(e){}
  }
  window.denYip = yipSound;

  if (window.matchMedia && window.matchMedia('(prefers-reduced-motion: reduce)').matches) {
    window.denSay = function(){};
    return;
  }

  var PAW = '<svg width="14" height="15" viewBox="0 0 20 21" xmlns="http://www.w3.org/2000/svg">' +
    '<ellipse cx="10" cy="14.5" rx="5.2" ry="4.6"/>' +
    '<ellipse cx="3.2" cy="8.6" rx="2.1" ry="2.7"/>' +
    '<ellipse cx="7.6" cy="5.4" rx="2.1" ry="2.8"/>' +
    '<ellipse cx="12.4" cy="5.4" rx="2.1" ry="2.8"/>' +
    '<ellipse cx="16.8" cy="8.6" rx="2.1" ry="2.7"/>' +
    '</svg>';
  var colors = ['#8f7bff', '#4fc3ff'];
  var spawnEdge = Math.floor(Math.random() * 4);
  var sx, sy;
  if (spawnEdge === 0) { sx = 70; sy = 80 + Math.random() * Math.max(window.innerHeight - 160, 1); }
  else if (spawnEdge === 1) { sx = window.innerWidth - 70; sy = 80 + Math.random() * Math.max(window.innerHeight - 160, 1); }
  else if (spawnEdge === 2) { sx = 80 + Math.random() * Math.max(window.innerWidth - 160, 1); sy = 70; }
  else { sx = 80 + Math.random() * Math.max(window.innerWidth - 160, 1); sy = window.innerHeight - 70; }
  var pos = { x: sx, y: sy };
  var heading = Math.random() * Math.PI * 2;
  var target = { x: pos.x, y: pos.y };
  var mode = 'rest';
  var restUntil = performance.now() + 800;
  var petUntil = 0;
  var nextZzz = performance.now() + 99999;
  var lastEmote = 0;
  var side = 1, distSince = 0;
  var lastT = performance.now();
  var WALK = 70, TROT = 150, RUN = 340;
  var STRIDE_WALK = 24, STRIDE_RUN = 38;
  var TURN = 4.0;
  var SLEEPY_AFTER = 600000;
  var lastActivity = performance.now();
  var sleepPrepUntil = 0, wakeUntil = 0, suppressBumpUntil = 0;
  var asleep = false, bedEl = null, nextSleepZ = 0;
  var speedMult = 1;
  var PAW_LIFE = 1300;
  var weather = 'clear', wxTimer = null, wxLayer = null;
  var shelterPt = null, nextSulk = 0;
  var treatEl = null, treatPt = null;
  var fedAt = performance.now();
  var lastScrollY = window.scrollY || window.pageYOffset || 0;
  var windedUntil = 0;
  var poiSay = null, lastPoi = null;
  var errandTarget = null, errandSay = null, errandRun = false, errandDeadline = 0;
  var mis = null, lastMischief = 0;
  var dout = null, dinp = null, dpr = null;

  var mem = { v: 0, pets: 0, treats: 0, name: null, last: 0, id: null };
  try {
    var m0 = JSON.parse(localStorage.getItem('denmem'));
    if (m0 && typeof m0 === 'object') {
      mem.v = m0.v | 0;
      mem.pets = m0.pets | 0;
      mem.treats = m0.treats | 0;
      mem.name = (typeof m0.name === 'string' && m0.name) ? m0.name.slice(0, 16) : null;
      mem.last = m0.last || 0;
      if (typeof m0.id === 'string' && /^[a-f0-9]{16}$/.test(m0.id)) mem.id = m0.id;
    }
  } catch(e){}
  var prevLast = mem.last;
  mem.v++;
  mem.last = Date.now();
  if (!mem.id) {
    var idb = '';
    try {
      var ida = new Uint8Array(8);
      crypto.getRandomValues(ida);
      for (var ii = 0; ii < 8; ii++) idb += ('0' + ida[ii].toString(16)).slice(-2);
    } catch(e) {
      for (var ij = 0; ij < 16; ij++) idb += Math.floor(Math.random() * 16).toString(16);
    }
    mem.id = idb;
  }
  function saveMem(){
    try { localStorage.setItem('denmem', JSON.stringify(mem)); } catch(e){}
  }
  saveMem();

  function trust(){ return mem.pets + mem.treats; }
  function hungry(){ return performance.now() - fedAt > 240000; }

  function greeting(){
    var away = prevLast ? (Date.now() - prevLast) : 0;
    if (mem.v <= 1) return '*yip* (hello)';
    if (away > 604800000) return 'YIP!! (where were u)';
    if (mem.name) return '*yip* (' + mem.name + ' missed u)';
    if (mem.v >= 8) return 'yip (welcome home)';
    return 'yip!! (u came back)';
  }

  window.denSetName = function(n){
    n = String(n || '').replace(/[^\w \-]/g, '').trim().slice(0, 16);
    if (!n) return null;
    mem.name = n;
    saveMem();
    sayText('yip!! (i am ' + n + ')');
    emote('\uD83D\uDC96', true);
    if (dpr) dpr.textContent = promptTxt();
    return n;
  };
  window.denGetName = function(){ return mem.name; };

  function promptTxt(){ return (mem.name || 'guest') + '@den ~>'; }

  function denPhrase(n){
    if (n <= 0) return 'just u + the kobold rn';
    if (n === 1) return '1 other is here rn';
    return n + ' others are here rn';
  }
  function checkPresence(){
    if (!window.fetch) return;
    fetch('/den.php?id=' + mem.id, { cache: 'no-store' }).then(function(r){
      if (!r.ok) return null;
      return r.json();
    }).then(function(j){
      if (!j) return;
      var n = j.others | 0;
      window.denOthers = n;
      var els = document.querySelectorAll('[data-den-others]');
      for (var i = 0; i < els.length; i++) els[i].textContent = denPhrase(n);
    }).catch(function(){});
  }

  function pois(){
    var out = [];
    var els = document.querySelectorAll('[data-den-poi]');
    for (var i = 0; i < els.length; i++) {
      var r = els[i].getBoundingClientRect();
      if (r.width < 10 || r.height < 10) continue;
      if (r.bottom < 40 || r.top > window.innerHeight - 40) continue;
      if (r.right < 40 || r.left > window.innerWidth - 40) continue;
      out.push({ el: els[i], r: r });
    }
    return out;
  }

  function emote(ch, force){
    var now = performance.now();
    if (!force && now - lastEmote < 500) return;
    lastEmote = now;
    var el = document.createElement('span');
    el.className = 'emote';
    el.textContent = ch;
    el.style.left = (pos.x + (Math.random() * 16 - 8)) + 'px';
    el.style.top  = (pos.y - 18) + 'px';
    document.body.appendChild(el);
    setTimeout(function(){ el.remove(); }, 1250);
  }

  function pick(arr){ return arr[Math.floor(Math.random() * arr.length)]; }

  function sayText(t){
    var el = document.createElement('span');
    el.className = 'emote say';
    el.textContent = t;
    el.style.left = (pos.x - 10) + 'px';
    el.style.top  = (pos.y - 22) + 'px';
    document.body.appendChild(el);
    setTimeout(function(){ el.remove(); }, 1250);
  }
  window.denSay = sayText;

  function makeBed(){
    bedEl = document.createElement('div');
    bedEl.className = 'denbed';
    bedEl.innerHTML = '<svg width="64" height="42" viewBox="0 0 64 42" xmlns="http://www.w3.org/2000/svg">' +
      '<rect x="2" y="24" width="60" height="11" rx="5" fill="#3d2a55" stroke="#8f7bff" stroke-width="2"/>' +
      '<rect x="3" y="33" width="4" height="8" rx="1" fill="#8f7bff"/>' +
      '<rect x="57" y="33" width="4" height="8" rx="1" fill="#8f7bff"/>' +
      '<ellipse cx="13" cy="22" rx="9" ry="5" fill="#c9b8ff"/>' +
      '<path class="lump" d="M23 26 Q33 10 53 23 L53 26 Z" fill="#4fc3ff" stroke="#8f7bff" stroke-width="1.5"/>' +
      '</svg>';
    bedEl.style.left = (pos.x - 32) + 'px';
    bedEl.style.top  = (pos.y - 26) + 'px';
    document.body.appendChild(bedEl);
  }

  function bump(){
    var now = performance.now();
    if (now < suppressBumpUntil) return;
    lastActivity = now;
    if (sleepPrepUntil) sleepPrepUntil = 0;
    if (asleep) {
      asleep = false;
      if (bedEl) {
        var b = bedEl; bedEl = null;
        b.style.opacity = '0';
        setTimeout(function(){ b.remove(); }, 500);
      }
      emote('\u2728', true);
      sayText('...yip?');
      wakeUntil = now + 900;
    }
  }
  window.addEventListener('scroll', function(){
    var y = window.scrollY || window.pageYOffset || 0;
    var delta = y - lastScrollY;
    lastScrollY = y;
    if (asleep || sleepPrepUntil || !delta) return;
    pos.y -= delta;
    var pushed = false;
    if (pos.y < 18) { pos.y = 18; pushed = true; }
    else if (pos.y > window.innerHeight - 18) { pos.y = window.innerHeight - 18; pushed = true; }
    if (pushed && Math.abs(delta) > 45) windedUntil = performance.now() + 2500;
    if (treatEl && treatPt) {
      treatPt.y -= delta;
      treatEl.style.top = (treatPt.y - 10) + 'px';
      if (treatPt.y < 0 || treatPt.y > window.innerHeight) {
        treatEl.remove(); treatEl = null; treatPt = null;
        if (mode === 'treat') { mode = 'wander'; target = pickWander(); }
      }
    }
    if (shelterPt) shelterPt.y -= delta;
  }, { passive: true });

  document.addEventListener('keydown', bump);
  document.addEventListener('scroll', bump, { passive: true });
  document.addEventListener('touchstart', bump, { passive: true });

  document.addEventListener('mousemove', function(e){
    target.x = e.clientX; target.y = e.clientY;
    bump();
    if (mode === 'errand' || mode === 'mischief' || mode === 'treat') return;
    if (mode === 'shelter' && weather === 'rain') return;
    var now = performance.now();
    if (now < petUntil || now < wakeUntil) return;
    if (mode !== 'chase') emote('\u2757');
    mode = 'chase';
  });

  function petHim(){
    var now = performance.now();
    if (mode === 'mischief') returnItem();
    petUntil = now + 800;
    mode = 'rest';
    restUntil = now + 2000;
    nextZzz = now + 99999;
    emote(pick(['\uD83D\uDC95','\uD83D\uDC96','\uD83D\uDC97']), true);
    setTimeout(function(){ emote('\uD83D\uDC95', true); }, 240);
    yipSound();
    mem.pets++;
    saveMem();
    if (mem.pets === 10) setTimeout(function(){ sayText('yip!! (we are friends now)'); }, 420);
    else if (mem.pets === 25) setTimeout(function(){ sayText('yip (best friend)'); }, 420);
    else if (mem.pets === 50) setTimeout(function(){ sayText('yip!! (bonded 4 life)'); }, 420);
    else if (mem.pets === 100) setTimeout(function(){ sayText('yip (soulmates)'); }, 420);
  }

  document.addEventListener('click', function(e){
    bump();
    if (e.target.closest && e.target.closest('a,button,input,textarea,label,select')) return;
    if (Math.hypot(e.clientX - pos.x, e.clientY - pos.y) > 48) return;
    petHim();
  });

  function stealables(){
    var out = [];
    var els = document.querySelectorAll('[data-den-steal]');
    for (var i = 0; i < els.length; i++) {
      var r = els[i].getBoundingClientRect();
      if (r.width < 8 || r.width > 220 || r.height < 8 || r.height > 90) continue;
      if (r.bottom < 40 || r.top > window.innerHeight - 60) continue;
      if (r.right < 40 || r.left > window.innerWidth - 60) continue;
      if (els[i].style.visibility === 'hidden') continue;
      out.push(els[i]);
    }
    return out;
  }

  function returnItem(){
    if (mis && mis.clone) {
      mis.el.style.visibility = '';
      mis.clone.remove();
    }
    if (mis) {
      mis = null;
      mode = 'wander';
      target = pickWander();
    }
  }

  function startMischief(force){
    var now = performance.now();
    if (mis) return false;
    if (!force && now - lastMischief < 150000) return false;
    var cands = stealables();
    if (!cands.length) return false;
    if (!force && Math.random() > 0.07) return false;
    var el = cands[Math.floor(Math.random() * cands.length)];
    var r = el.getBoundingClientRect();
    mis = {
      el: el,
      phase: 'togo',
      pt: clampPt(r.left + r.width / 2, r.top + r.height / 2),
      deadline: now + 18000,
      gift: trust() >= 25
    };
    lastMischief = now;
    mode = 'mischief';
    return true;
  }

  function grabItem(now){
    var r = mis.el.getBoundingClientRect();
    mis.clone = document.createElement('div');
    mis.clone.style.cssText = 'position:fixed;z-index:9998;pointer-events:none;margin:0;left:' + r.left + 'px;top:' + r.top + 'px;width:' + r.width + 'px;height:' + r.height + 'px;';
    var inner = mis.el.cloneNode(true);
    inner.style.margin = '0';
    mis.clone.appendChild(inner);
    document.body.appendChild(mis.clone);
    mis.el.style.visibility = 'hidden';
    mis.cw = r.width / 2;
    mis.ch = r.height;
    if (mis.gift) {
      sayText('yip!');
    } else {
      var aa = Math.random() * Math.PI * 2;
      mis.dropPt = clampPt(pos.x + Math.cos(aa) * 300, pos.y + Math.sin(aa) * 300);
      sayText(pick(['yip yip yip (mine now)', '(catch me)', 'yip!! (tax)']));
    }
    mis.phase = 'carry';
  }

  function spawnWx(){
    if (!wxLayer) return;
    var rain = weather === 'rain';
    var p = document.createElement('i');
    p.className = rain ? 'r' : 's';
    if (!rain) p.textContent = '\u2744';
    p.style.left = (Math.random() * 100) + 'vw';
    var dur = rain ? (0.55 + Math.random() * 0.35) : (3.2 + Math.random() * 3.4);
    p.style.animationDuration = dur + 's';
    p.style.opacity = rain ? (0.3 + Math.random() * 0.45) : (0.5 + Math.random() * 0.5);
    wxLayer.appendChild(p);
    setTimeout(function(){ p.remove(); }, dur * 1000 + 300);
  }

  function setWeather(kind){
    if (kind !== 'rain' && kind !== 'snow') kind = 'clear';
    if (kind === weather) return;
    weather = kind;
    if (wxTimer) { clearInterval(wxTimer); wxTimer = null; }
    if (wxLayer) { var old = wxLayer; wxLayer = null; old.remove(); }
    PAW_LIFE = (kind === 'snow') ? 4200 : 1300;
    if (kind === 'clear') {
      shelterPt = null;
      if (mode === 'shelter') { mode = 'wander'; target = pickWander(); sayText('yip!! (it stopped)'); }
      return;
    }
    wxLayer = document.createElement('div');
    wxLayer.className = 'denwx';
    document.body.appendChild(wxLayer);
    wxTimer = setInterval(spawnWx, kind === 'rain' ? 85 : 240);
    if (asleep) bump();
    if (kind === 'rain') {
      sayText('yip?! (wet)');
      emote('\u2614', true);
      seekShelter();
    } else {
      sayText('YIP!! (snow!!)');
      emote('\u2744', true);
      speedMult = 1.6;
      setTimeout(function(){ if (speedMult === 1.6) speedMult = 1; }, 6000);
    }
  }
  window.denWeather = setWeather;

  function seekShelter(){
    var ps = pois();
    if (!ps.length) { shelterPt = null; return false; }
    var best = null, bd = Infinity;
    for (var i = 0; i < ps.length; i++) {
      var r = ps[i].r;
      var cx = r.left + r.width * 0.5;
      var cy = r.top + Math.min(r.height * 0.5, 45);
      var dd = Math.hypot(cx - pos.x, cy - pos.y);
      if (dd < bd) { bd = dd; best = { x: cx, y: cy }; }
    }
    if (!best) return false;
    shelterPt = clampPt(best.x, best.y);
    nextSulk = performance.now() + 2200;
    mode = 'shelter';
    return true;
  }

  function dropTreat(x, y){
    if (treatEl) { treatEl.remove(); treatEl = null; }
    treatPt = clampPt(x, y);
    treatEl = document.createElement('div');
    treatEl.className = 'dentreat';
    treatEl.textContent = '\uD83C\uDF56';
    treatEl.style.left = (treatPt.x - 10) + 'px';
    treatEl.style.top = (treatPt.y - 10) + 'px';
    document.body.appendChild(treatEl);
    if (asleep) bump();
    if (mis) returnItem();
    emote('\u2757', true);
    mode = 'treat';
  }
  window.denTreat = dropTreat;

  function clampPt(x, y){
    return {
      x: Math.min(Math.max(x, 20), window.innerWidth - 20),
      y: Math.min(Math.max(y, 20), window.innerHeight - 20)
    };
  }

  function resolvePoint(opts){
    var el = opts.el;
    if (typeof el === 'string') el = document.querySelector(el);
    if (el && el.getBoundingClientRect) {
      var r = el.getBoundingClientRect();
      if (r.width > 0) return clampPt(r.left + r.width * 0.5, r.top + Math.min(r.height * 0.4, 50));
    }
    if (typeof opts.x === 'number' && typeof opts.y === 'number') return clampPt(opts.x, opts.y);
    return null;
  }

  window.denEvent = function(type, opts){
    opts = opts || {};
    var now = performance.now();
    lastActivity = now;
    if (asleep) bump();
    if (mode === 'mischief' && type !== 'mischief') returnItem();
    if (type === 'mischief') {
      startMischief(true);
      return;
    }
    if (type === 'rain' || type === 'snow' || type === 'clear') {
      setWeather(type);
      return;
    }
    if (type === 'treat') {
      var tp = resolvePoint(opts);
      if (!tp) tp = clampPt(pos.x + (Math.random() * 220 - 110), pos.y + (Math.random() * 160 - 80));
      dropTreat(tp.x, tp.y);
      return;
    }
    if (type === 'celebrate') {
      petUntil = now + 1100;
      mode = 'rest';
      restUntil = now + 2800;
      nextZzz = now + 99999;
      emote('\u2728', true);
      setTimeout(function(){ emote('\uD83D\uDC95', true); }, 300);
      setTimeout(function(){ emote('\u2728', true); }, 650);
      setTimeout(function(){ sayText(opts.text || 'YIP!!'); }, 180);
      yipSound();
    } else if (type === 'investigate') {
      var pt = resolvePoint(opts);
      if (!pt) return;
      errandTarget = pt;
      errandSay = opts.text || null;
      errandRun = !!opts.run;
      errandDeadline = now + 9000;
      mode = 'errand';
    } else if (type === 'alarm') {
      emote('\u26A0\uFE0F', true);
      sayText(opts.text || 'YIP?!');
      var aa = Math.random() * Math.PI * 2;
      errandTarget = clampPt(pos.x + Math.cos(aa) * 260, pos.y + Math.sin(aa) * 260);
      errandSay = null;
      errandRun = true;
      errandDeadline = now + 4000;
      mode = 'errand';
    } else if (type === 'sleepy') {
      suppressBumpUntil = now + 800;
      sleepPrepUntil = now + 1400;
      sayText('*yawn*');
    } else if (type === 'zoomies') {
      zoomies();
    } else if (opts.text) {
      sayText(opts.text);
    }
  };

  function zoomies(){
    document.body.classList.add('denzoom');
    speedMult = 7.5;
    var old = document.title;
    document.title = 'YIP YIP YIP YIP YIP';
    sayText('YIP YIP YIP YIP');
    setTimeout(function(){
      document.body.classList.remove('denzoom');
      speedMult = 1;
      document.title = old;
    }, 10000);
  }

  var kseq = ['ArrowUp','ArrowUp','ArrowDown','ArrowDown','ArrowLeft','ArrowRight','ArrowLeft','ArrowRight','b','a'];
  var kpos = 0;
  document.addEventListener('keydown', function(e){
    var k = e.key.length === 1 ? e.key.toLowerCase() : e.key;
    kpos = (k === kseq[kpos]) ? kpos + 1 : (k === kseq[0] ? 1 : 0);
    if (kpos !== kseq.length) return;
    kpos = 0;
    zoomies();
  });

  var buf = '';
  document.addEventListener('keydown', function(e){
    var t = e.target;
    if (t && (t.tagName === 'INPUT' || t.tagName === 'TEXTAREA' || t.isContentEditable)) return;
    if (e.key.length !== 1) return;
    buf = (buf + e.key.toLowerCase()).slice(-12);
    if (buf.slice(-3) === 'yip') { sayText('yip!!'); buf = ''; }
    else if (buf.slice(-3) === 'owo') { sayText('*notices u*'); buf = ''; }
    else if (buf.slice(-3) === 'uwu') { sayText('yip (no)'); buf = ''; }
    else if (buf.slice(-6) === 'kobold') { emote('\uD83D\uDC95', true); sayText('yip!! (that is me)'); buf = ''; }
    else if (buf.slice(-6) === 'shrine') { sayText('YIP?! (how do u know about that)'); buf = ''; }
    else if (buf.slice(-7) === 'zoomies') { zoomies(); buf = ''; }
    else if (buf.slice(-5) === 'sleep') {
      suppressBumpUntil = performance.now() + 800;
      sleepPrepUntil = performance.now() + 1400;
      sayText('*yawn*');
      buf = '';
    }
  });

  function angDiff(a, b){
    var d = (b - a) % (Math.PI * 2);
    if (d >  Math.PI) d -= Math.PI * 2;
    if (d < -Math.PI) d += Math.PI * 2;
    return d;
  }

  function driftLine(){
    if (hungry() && Math.random() < 0.55) return pick(['yip (hungry)', '(food?)', 'yip? (snacks)']);
    if (mem.v >= 3 && trust() === 0 && Math.random() < 0.4) return pick(['yip...', '(is anyone there)', 'yip? (hello?)']);
    if (trust() >= 25 && Math.random() < 0.4) return pick(['yip (comfy)', 'uwu', 'yip yip (good day)']);
    return null;
  }

  function pickWander(){
    poiSay = null;
    if (Math.random() < 0.45) {
      var ps = pois().filter(function(p){ return p.el !== lastPoi; });
      if (ps.length) {
        var p = ps[Math.floor(Math.random() * ps.length)];
        lastPoi = p.el;
        var txts = (p.el.getAttribute('data-den-poi') || '').split('|').filter(Boolean);
        if (txts.length) poiSay = txts[Math.floor(Math.random() * txts.length)];
        return {
          x: Math.min(Math.max(p.r.left + p.r.width * (0.25 + Math.random() * 0.5), 20), window.innerWidth - 20),
          y: Math.min(Math.max(p.r.top + Math.min(p.r.height * 0.4, 60) + Math.random() * 20, 20), window.innerHeight - 20)
        };
      }
    }
    var r = 60 + Math.random() * 120;
    var a = heading + (Math.random() - 0.5) * 2.6;
    return {
      x: Math.min(Math.max(pos.x + Math.cos(a) * r, 20), window.innerWidth  - 20),
      y: Math.min(Math.max(pos.y + Math.sin(a) * r, 20), window.innerHeight - 20)
    };
  }

  function drop(){
    side = -side;
    var p = document.createElement('span');
    p.className = 'paw-trail';
    p.innerHTML = PAW;
    var c = colors[side > 0 ? 0 : 1];
    p.querySelector('svg').style.fill = c;
    p.style.color = c;
    var deg = heading * 180 / Math.PI + 90;
    var ox = -Math.sin(heading) * 7 * side;
    var oy =  Math.cos(heading) * 7 * side;
    p.style.left = (pos.x + ox - 7) + 'px';
    p.style.top  = (pos.y + oy - 7) + 'px';
    p.querySelector('svg').style.transform = 'rotate(' + deg + 'deg) scaleX(' + side + ')';
    p.querySelector('svg').style.display = 'block';
    document.body.appendChild(p);
    setTimeout(function(){ p.remove(); }, PAW_LIFE);
  }

  function tick(now){
    var dt = Math.min((now - lastT) / 1000, 0.05);
    lastT = now;
    var zoom = speedMult;

    if (asleep) {
      if (now > nextSleepZ) { emote('\uD83D\uDCA4', true); nextSleepZ = now + 2600; }
      requestAnimationFrame(tick);
      return;
    }
    if (sleepPrepUntil) {
      if (now < sleepPrepUntil) {
        heading += 7 * dt;
        var bs = WALK * 0.7 * dt;
        pos.x += Math.cos(heading) * bs;
        pos.y += Math.sin(heading) * bs;
        distSince += bs;
        if (distSince >= STRIDE_WALK * 0.8) { distSince = 0; drop(); }
      } else {
        sleepPrepUntil = 0;
        asleep = true;
        pos.x = Math.min(Math.max(pos.x, 44), window.innerWidth - 44);
        pos.y = Math.min(Math.max(pos.y, 40), window.innerHeight - 30);
        makeBed();
        sayText('...zzz');
        nextSleepZ = now + 1800;
      }
      requestAnimationFrame(tick);
      return;
    }
    if (now - lastActivity > SLEEPY_AFTER && now > petUntil) {
      sleepPrepUntil = now + 1400;
      sayText('*yawn*');
      requestAnimationFrame(tick);
      return;
    }
    if (now < wakeUntil) {
      requestAnimationFrame(tick);
      return;
    }

    if (now < petUntil) {
      heading += 9 * dt;
      var st2 = WALK * 0.9 * zoom * dt;
      pos.x += Math.cos(heading) * st2;
      pos.y += Math.sin(heading) * st2;
      distSince += st2;
      if (distSince >= STRIDE_WALK * 0.8) { distSince = 0; drop(); }
      requestAnimationFrame(tick);
      return;
    }

    if (mode === 'mischief') {
      if (!mis) {
        mode = 'wander';
        target = pickWander();
        requestAnimationFrame(tick);
        return;
      }
      if (now > mis.deadline) {
        if (mis.phase === 'carry') {
          mis.phase = 'dropped';
          mis.dropTime = now;
          mis.deadline = now + 12000;
          sayText(mis.gift ? '*wheeze* (u are fast. here)' : '*wheeze* (fine)');
        } else {
          returnItem();
          requestAnimationFrame(tick);
          return;
        }
      }
      if (mis.phase === 'togo' || mis.phase === 'carry') {
        var mdest;
        if (mis.phase === 'togo') mdest = mis.pt;
        else mdest = mis.gift ? clampPt(target.x, target.y) : mis.dropPt;
        var mx = mdest.x - pos.x, my = mdest.y - pos.y;
        var md = Math.hypot(mx, my);
        if (md < 16) {
          if (mis.phase === 'togo') {
            grabItem(now);
          } else {
            mis.phase = 'dropped';
            mis.dropTime = now;
            if (mis.gift) {
              sayText(pick(['uwu (for u)', 'yip (i brought u this)', '(i love u)']));
              emote('\uD83D\uDC95', true);
              setTimeout(function(){ emote('\uD83D\uDC96', true); }, 300);
            } else {
              sayText(pick(['yip (u can have it back)', '(hehe)', 'yip yip (a good crime)']));
            }
          }
        } else {
          var mw = Math.atan2(my, mx);
          var mmx = TURN * dt * 2.2;
          heading += Math.max(-mmx, Math.min(mmx, angDiff(heading, mw)));
          var msp = (mis.phase === 'carry' && !mis.gift ? RUN : TROT) * zoom;
          var mst = (mis.phase === 'carry' && !mis.gift ? STRIDE_RUN : STRIDE_WALK);
          var mstep = Math.min(msp * dt, md);
          pos.x += Math.cos(heading) * mstep;
          pos.y += Math.sin(heading) * mstep;
          distSince += mstep;
          if (distSince >= mst) { distSince = 0; drop(); }
        }
        if (mis && mis.clone && mis.phase === 'carry') {
          mis.clone.style.left = (pos.x - mis.cw) + 'px';
          mis.clone.style.top  = (pos.y - mis.ch - 14) + 'px';
        }
      } else if (mis.phase === 'dropped') {
        if (now > mis.dropTime + (mis.gift ? 4200 : 5200)) {
          var hr = mis.el.getBoundingClientRect();
          mis.clone.style.transition = 'left .6s ease, top .6s ease, opacity .6s ease';
          mis.clone.style.left = hr.left + 'px';
          mis.clone.style.top  = hr.top + 'px';
          mis.phase = 'returning';
          mis.retTime = now;
          if (!mis.gift) sayText('yip (fine. take it back)');
        }
      } else if (mis.phase === 'returning') {
        if (now > mis.retTime + 700) {
          emote('\u2728', true);
          returnItem();
        }
      }
      requestAnimationFrame(tick);
      return;
    }

    if (mode === 'shelter') {
      if (weather !== 'rain') {
        shelterPt = null;
        mode = 'wander';
        target = pickWander();
      } else if (!shelterPt) {
        if (!seekShelter()) { mode = 'wander'; target = pickWander(); }
      } else {
        var sx = shelterPt.x - pos.x, sy = shelterPt.y - pos.y;
        var sd = Math.hypot(sx, sy);
        if (sd < 14) {
          if (now > nextSulk) {
            nextSulk = now + 3200 + Math.random() * 2600;
            if (Math.random() < 0.5) emote(pick(['\u2614', '\uD83D\uDCA7']));
            else sayText(pick(['yip... (waiting it out)', '(damp)', 'yip (i do not like this)']));
          }
        } else {
          var sw = Math.atan2(sy, sx);
          var smx = TURN * dt * 2.2;
          heading += Math.max(-smx, Math.min(smx, angDiff(heading, sw)));
          var sspeed = (sd > 150 ? RUN : TROT) * speedMult;
          var sstep = Math.min(sspeed * dt, sd);
          pos.x += Math.cos(heading) * sstep;
          pos.y += Math.sin(heading) * sstep;
          distSince += sstep;
          if (distSince >= (sd > 150 ? STRIDE_RUN : STRIDE_WALK)) { distSince = 0; drop(); }
        }
      }
      requestAnimationFrame(tick);
      return;
    }

    if (mode === 'treat') {
      if (!treatPt || !treatEl) {
        mode = 'wander';
        target = pickWander();
      } else {
        var tx = treatPt.x - pos.x, ty = treatPt.y - pos.y;
        var td = Math.hypot(tx, ty);
        if (td < 15) {
          treatEl.remove();
          treatEl = null;
          treatPt = null;
          fedAt = now;
          mem.treats++;
          saveMem();
          emote('\uD83D\uDC96', true);
          sayText(pick(['*nom nom* yip!!', 'yip!! (thank u)', '(best day)']));
          yipSound();
          mode = 'rest';
          restUntil = now + 2600;
          nextZzz = now + 99999;
        } else {
          var tw = Math.atan2(ty, tx);
          var tmx = TURN * dt * 2.4;
          heading += Math.max(-tmx, Math.min(tmx, angDiff(heading, tw)));
          var tstep = Math.min(RUN * speedMult * dt, td);
          pos.x += Math.cos(heading) * tstep;
          pos.y += Math.sin(heading) * tstep;
          distSince += tstep;
          if (distSince >= STRIDE_RUN) { distSince = 0; drop(); }
        }
      }
      requestAnimationFrame(tick);
      return;
    }

    if (mode === 'errand') {
      if (!errandTarget || now > errandDeadline) {
        errandTarget = null;
        mode = 'wander';
        target = pickWander();
      } else {
        var ex = errandTarget.x - pos.x, ey = errandTarget.y - pos.y;
        var ed = Math.hypot(ex, ey);
        if (ed < 16) {
          if (errandSay) sayText(errandSay);
          else emote(pick(['\uD83D\uDC43','\u2753']));
          errandTarget = null;
          errandSay = null;
          mode = 'rest';
          restUntil = now + 1500;
          nextZzz = now + 99999;
        } else {
          var ew = Math.atan2(ey, ex);
          var emx = TURN * dt * 2.2;
          heading += Math.max(-emx, Math.min(emx, angDiff(heading, ew)));
          var esp = (errandRun ? RUN : TROT) * zoom;
          var est = (errandRun ? STRIDE_RUN : STRIDE_WALK);
          var estep = Math.min(esp * dt, ed);
          pos.x += Math.cos(heading) * estep;
          pos.y += Math.sin(heading) * estep;
          distSince += estep;
          if (distSince >= est) { distSince = 0; drop(); }
        }
      }
      requestAnimationFrame(tick);
      return;
    }

    var dx = target.x - pos.x, dy = target.y - pos.y;
    var dist = Math.hypot(dx, dy);

    if (mode === 'chase') {
      if (dist < 26) {
        mode = 'rest';
        restUntil = now + (trust() >= 25 ? 4200 : 2500);
        nextZzz = now + 1700;
        if (now < windedUntil) { windedUntil = 0; sayText('*wheeze* (u went so far)'); }
        else if (Math.random() < 0.5) emote(trust() >= 10 ? '\uD83D\uDC95' : '\u2728');
      }
    } else if (mode === 'rest') {
      if (now > nextZzz) { emote('\uD83D\uDCA4'); nextZzz = now + 1600; }
      if (hungry() && now > nextSulk) { emote('\uD83C\uDF56'); nextSulk = now + 9000; }
      if (now > restUntil) {
        if (weather === 'rain' && seekShelter()) { /* back under cover */ }
        else if (!startMischief(false)) { target = pickWander(); mode = 'wander'; }
      }
    } else {
      if (dist < 14) {
        mode = 'rest'; nextZzz = now + 99999;
        if (poiSay) {
          restUntil = now + 1200 + Math.random() * 1600;
          sayText(poiSay);
          poiSay = null;
        } else {
          restUntil = now + 600 + Math.random() * 1600;
          var dl = driftLine();
          if (dl) sayText(dl);
          else emote(pick(['\uD83D\uDC43','\u2753','\uD83C\uDF38','\u2728','\uD83D\uDC3E']));
        }
      }
    }

    if (mode !== 'rest' && dist > 1) {
      var want = Math.atan2(dy, dx);
      var maxTurn = TURN * dt * (mode === 'chase' ? 2.2 : 1);
      heading += Math.max(-maxTurn, Math.min(maxTurn, angDiff(heading, want)));
      var running = (mode === 'chase' && dist > 160);
      var speed = (mode === 'chase' ? (running ? RUN : TROT) : WALK) * zoom;
      var stride = running ? STRIDE_RUN : STRIDE_WALK;
      var step = Math.min(speed * dt, dist);
      pos.x += Math.cos(heading) * step;
      pos.y += Math.sin(heading) * step;
      distSince += step;
      if (distSince >= stride) { distSince = 0; drop(); }
    }
    requestAnimationFrame(tick);
  }
  var tab = document.createElement('div');
  tab.className = 'dentab';
  tab.textContent = '>_ den';
  var term = document.createElement('div');
  term.className = 'denterm';
  term.innerHTML = '<div class="dout">den shell v2 (now portable)\ntype "help"\n</div>' +
    '<div class="dline"><span class="dprompt"></span><input autocomplete="off" spellcheck="false" aria-label="den shell input"></div>';

  function dprint(t){ dout.textContent += t + '\n'; dout.scrollTop = dout.scrollHeight; }
  function openTerm(){ term.classList.add('open'); tab.style.display = 'none'; dinp.focus(); }
  function closeTerm(){ term.classList.remove('open'); tab.style.display = ''; }

  var petSeen = 0;
  function runCmd(raw){
    var lc = raw.toLowerCase();
    if (lc.indexOf('name ') === 0) {
      var nn = window.denSetName(raw.slice(5));
      dprint(nn ? 'the kobold accepts the name "' + nn + '". this is legally binding' : 'that name did not survive processing. try letters');
      return;
    }
    if (lc === 'name') {
      dprint(mem.name ? 'the kobold is named "' + mem.name + '"' : 'the kobold has no name yet. try: name <something>');
      return;
    }
    if (lc.indexOf('sudo') === 0) { dprint('no.'); return; }
    if (lc.indexOf('rm ') === 0 || lc === 'rm') { dprint('rm: the hoard is load-bearing. request denied'); return; }
    switch (lc) {
      case 'help':
        dprint('commands: pet, treat, come, sit, fetch, rain, snow, sun, sleep, wake, zoomies, where, status, name <x>, ls, whoami, pwd, neofetch, yip, clear, exit');
        break;
      case 'pet':
      case 'pet kobold':
        petSeen++;
        petHim();
        dprint(petSeen >= 5 ? '*yip yip yip* (maximum happiness. further pets stored for later)' : '*pets dispensed remotely* yip!');
        break;
      case 'fetch': {
        if (startMischief(true)) {
          dprint(trust() >= 25 ? 'he goes to find u something' : 'oh no');
        } else {
          dprint(mis ? 'his paws are full' : 'nothing here worth taking. sad');
        }
        break;
      }
      case 'treat': {
        var tr = term.getBoundingClientRect();
        dropTreat(
          Math.max(tr.left - 60, 40),
          Math.max(tr.top - 50, 40)
        );
        dprint(hungry() ? 'he was waiting for this' : 'a treat appears. he has noticed');
        break;
      }
      case 'rain':
        setWeather('rain');
        dprint('it rains. he does not care for it');
        break;
      case 'snow':
        setWeather('snow');
        dprint('it snows. he cares for it a great deal');
        break;
      case 'sun':
      case 'clear':
        setWeather('clear');
        dprint('the sky clears');
        break;
      case 'come': {
        var r = term.getBoundingClientRect();
        target = {
          x: Math.min(Math.max(r.left + 40, 20), window.innerWidth - 20),
          y: Math.min(Math.max(r.top - 40, 20), window.innerHeight - 20)
        };
        if (asleep) bump();
        mode = 'chase';
        dprint('he is on his way');
        break;
      }
      case 'sit':
        mode = 'rest';
        restUntil = performance.now() + 6000;
        nextZzz = performance.now() + 99999;
        sayText('yip (sitting)');
        dprint('he sits. a good boy');
        break;
      case 'sleep':
        suppressBumpUntil = performance.now() + 800;
        sleepPrepUntil = performance.now() + 1400;
        sayText('*yawn*');
        dprint('bedtime initiated');
        break;
      case 'wake':
        if (asleep) { bump(); dprint('he stirs'); }
        else dprint('he is already awake and probably watching u');
        break;
      case 'zoomies':
        zoomies();
        dprint('oh no');
        break;
      case 'where':
        sayText('yip!! (here)');
        emote('\u2728', true);
        dprint('listen for the yip');
        break;
      case 'status':
        dprint('mode: ' + (asleep ? 'asleep' : mode) + ' | pets: ' + mem.pets + ' | treats: ' + mem.treats +
               ' | name: ' + (mem.name || '(unnamed)') + ' | visits: ' + mem.v +
               ' | weather: ' + weather + (hungry() ? ' | hungry' : ''));
        break;
      case 'ls':
        dprint('den/  hoard/  guestbook.txt  do_not_open/  retopo_FINAL_v2/');
        break;
      case 'whoami':
        dprint('a guest in the den');
        break;
      case 'pwd':
        dprint('/home/den/u');
        break;
      case 'yip':
        sayText('yip!!');
        dprint('yip!!');
        break;
      case 'neofetch':
        dprint('      /\\_/\\     guest@den\n     ( o.o )    ----------\n      > ^ <     OS: DenOS (yes it is just apache)\n   kobold btw   Shell: den shell 2.0\n                Uptime: emotionally? unclear');
        break;
      case 'clear':
        dout.textContent = '';
        break;
      case 'exit':
        dprint('u can check out any time u like...');
        setTimeout(closeTerm, 600);
        break;
      default:
        dprint("fish: Unknown command: '" + raw.split(' ')[0].replace(/[^\w.-]/g, '') + "'");
    }
  }

  function mountShell(){
    document.body.appendChild(tab);
    document.body.appendChild(term);
    dout = term.querySelector('.dout');
    dinp = term.querySelector('input');
    dpr  = term.querySelector('.dprompt');
    dpr.textContent = promptTxt();
    tab.addEventListener('click', openTerm);
    dinp.addEventListener('keydown', function(e){
      if (e.key === 'Escape') { closeTerm(); return; }
      if (e.key !== 'Enter') return;
      var raw = dinp.value.trim();
      dinp.value = '';
      if (!raw) return;
      dprint(promptTxt() + ' ' + raw);
      runCmd(raw);
    });
  }

  var hole = document.createElement('div');
  hole.className = 'denhole';
  hole.innerHTML = '<svg width="56" height="34" viewBox="0 0 56 34" xmlns="http://www.w3.org/2000/svg">' +
    '<ellipse cx="28" cy="17" rx="26" ry="14" fill="#0d0818" stroke="#8f7bff" stroke-width="2.5"/>' +
    '<ellipse cx="28" cy="19" rx="18" ry="8" fill="#000"/>' +
    '<ellipse cx="20" cy="10" rx="4" ry="1.6" fill="#3d2a55"/>' +
    '</svg>';
  hole.style.left = (pos.x - 28) + 'px';
  hole.style.top  = (pos.y - 17) + 'px';
  function beginLife(){
    mountShell();
    checkPresence();
    setInterval(checkPresence, 60000);
    document.body.appendChild(hole);
    setTimeout(function(){
      emote('\u2728', true);
      sayText(greeting());
      var cx = window.innerWidth / 2, cy = window.innerHeight / 2;
      var ang = Math.atan2(cy - pos.y, cx - pos.x);
      heading = ang;
      var r2 = 160 + Math.random() * 120;
      target = {
        x: Math.min(Math.max(pos.x + Math.cos(ang) * r2, 20), window.innerWidth - 20),
        y: Math.min(Math.max(pos.y + Math.sin(ang) * r2, 20), window.innerHeight - 20)
      };
      poiSay = null;
      mode = 'wander';
    }, 700);
    setTimeout(function(){
      hole.style.opacity = '0';
      setTimeout(function(){ hole.remove(); }, 600);
    }, 2600);
    setTimeout(function(){
      var n = window.denOthers | 0;
      if (n > 0) sayText('yip (' + n + (n === 1 ? ' other is' : ' others are') + ' here... i can smell them)');
    }, 9000);
  }
  if (document.body) beginLife();
  else document.addEventListener('DOMContentLoaded', beginLife);
  requestAnimationFrame(tick);
})();