diff --git a/index.html b/index.html
index efc8f76..2a21ed1 100644
--- a/index.html
+++ b/index.html
@@ -1,447 +1,417 @@
 <!doctype html>
 
-<html lang="en">  
-<head>  
-  <meta charset="utf-8"/>  
-  <meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover"/>  
-  <title>ChatGPT — Mobile Clone (Light)</title>  
-  <script src="https://cdn.tailwindcss.com"></script>  
-  <style>  
-    :root{--safe-bottom:env(safe-area-inset-bottom)}  
-    ::-webkit-scrollbar{height:8px;width:8px}  
-    ::-webkit-scrollbar-thumb{background:#e5e7eb;border-radius:999px}  
-    .no-scrollbar::-webkit-scrollbar{display:none}  
-    .no-scrollbar{-ms-overflow-style:none;scrollbar-width:none}  
-  </style>  
-</head>  
-<body class="bg-white text-gray-900 selection:bg-black/10">  
-  <div class="flex flex-col h-dvh max-h-dvh">  
-    <!-- Header -->  
-    <header class="sticky top-0 z-20 bg-white/80 backdrop-blur border-b border-gray-200">  
-      <div class="mx-auto w-full max-w-2xl px-4 py-3 grid grid-cols-3 items-center">  
-        <!-- Sidebar toggle (left) -->  
-        <button id="sidebarBtn" class="h-8 w-8 rounded-xl bg-gray-100 hover:bg-gray-200 active:scale-[.99] transition flex items-center justify-center" title="Assistants">  
-          <svg viewBox="0 0 24 24" class="h-5 w-5" fill="none" stroke="currentColor" stroke-width="2"><path stroke-linecap="round" stroke-linejoin="round" d="M4 6h16M4 12h16M4 18h16"/></svg>  
-        </button>  
-        <!-- Active assistant (center) -->  
-        <button id="settingsBtnTop" class="justify-self-center h-8 w-8 rounded-full bg-gray-200 text-gray-900 flex items-center justify-center hover:bg-gray-300 active:scale-[.99] transition" title="Assistant settings">🤖</button>  
-        <!-- API key badge (right) -->  
-        <button id="apiBadge" title="Set OpenRouter API key" class="justify-self-end h-8 min-w-8 px-3 rounded-full border text-xs font-medium inline-flex items-center justify-center gap-1 transition bg-gray-100 text-gray-700 border-gray-200 hover:bg-gray-200">  
-          <svg viewBox="0 0 24 24" class="h-4 w-4" fill="none" stroke="currentColor" stroke-width="1.8"><path stroke-linecap="round" stroke-linejoin="round" d="M15 7a4 4 0 11-7.999.001A4 4 0 0115 7zm-.293 6.707L9 19.414V22h2.586l5.707-5.707a1 1 0 000-1.414l-1.586-1.586a1 1 0 00-1.414 0z"/></svg>  
-          <span id="statusText" class="sr-only">offline</span>  
-        </button>  
-      </div>  
-    </header><!-- Messages -->  
-<main id="chat" class="flex-1 overflow-y-auto no-scrollbar">  
-  <div id="messages" class="mx-auto w-full max-w-2xl px-4 py-4 sm:py-6 space-y-4"></div>  
-  <div class="h-24"></div>  
-</main>  <!-- Input Dock -->  <footer class="sticky bottom-0 z-10 bg-gradient-to-t from-white via-white/95 to-white/40 pt-3 pb-[calc(12px+var(--safe-bottom))] border-t border-gray-200">  
-  <div class="mx-auto w-full max-w-2xl px-4">  
-    <form id="composer" class="group relative flex items-end gap-2">  
-      <textarea id="input" rows="1" placeholder="Send a message" spellcheck="true" class="flex-1 resize-none rounded-2xl border border-gray-300 bg-white px-4 py-3 text-[15px] leading-6 placeholder:text-gray-400 focus:outline-none focus:ring-2 focus:ring-black/20 focus:border-gray-300 max-h-40"></textarea>  
-      <button id="sendBtn" type="submit" aria-label="Send" class="shrink-0 rounded-2xl bg-black text-white h-10 w-10 inline-flex items-center justify-center shadow-sm hover:bg-black/90 active:scale-[.98] transition disabled:opacity-40 disabled:cursor-not-allowed">  
-        <svg viewBox="0 0 24 24" class="h-5 w-5" fill="none" stroke="currentColor" stroke-width="1.8"><path stroke-linecap="round" stroke-linejoin="round" d="M5 12h14M12 5l7 7-7 7"/></svg>  
-      </button>  
-    </form>  
-    <div class="mt-2 flex items-center justify-end text-xs text-gray-500">  
-      <div class="flex items-center gap-3">  
-        <button id="stopBtn" class="underline decoration-dotted hover:text-gray-700 hidden">Stop</button>  
-        <button id="clearBtn" class="underline decoration-dotted hover:text-gray-700">Clear</button>  
-      </div>  
-    </div>  
-  </div>  
-</footer>    </div>  <!-- Sidebar -->  <div id="sidebarOverlay" class="fixed inset-0 z-40 bg-black/20 hidden"></div>  
-  <aside id="sidebar" class="fixed inset-y-0 left-0 z-50 w-72 max-w-[85vw] bg-white border-r border-gray-200 shadow-xl transform -translate-x-full transition-transform duration-200 ease-out flex flex-col">  
-    <div class="p-3 border-b flex items-center gap-2">  
-      <button id="newAssistantBtn" class="px-3 py-2 rounded-xl bg-black text-white text-sm hover:bg-black/90">New assistant</button>  
-      <span class="text-xs text-gray-500">Click name to equip</span>  
-    </div>  
-    <div id="assistantList" class="flex-1 overflow-y-auto divide-y"></div>  
-  </aside>  
-  <!-- Settings Dialog -->  
-  <div id="settingsModal" class="hidden fixed inset-0 z-50">  
-    <div class="absolute inset-0 bg-black/30"></div>  
-    <div class="absolute inset-x-0 top-12 mx-auto w-full max-w-md px-4">  
-      <div class="rounded-2xl bg-white shadow-xl border border-gray-200 overflow-hidden">  
-        <div class="px-4 py-3 border-b text-sm font-semibold flex items-center justify-between">  
-          <span>Assistant Settings</span>  
-          <button id="closeSettings" class="p-1 rounded hover:bg-gray-100" aria-label="Close">  
-            <svg viewBox="0 0 24 24" class="h-5 w-5" fill="none" stroke="currentColor" stroke-width="2"><path stroke-linecap="round" stroke-linejoin="round" d="M6 18L18 6M6 6l12 12"/></svg>  
-          </button>  
-        </div>  
-        <form id="settingsForm" class="text-sm">  
-          <div class="border-b flex text-sm font-medium">  
-            <button type="button" id="tabModel" class="flex-1 py-2 px-3 text-center border-b-2 border-black">Model & Sampling</button>  
-            <button type="button" id="tabPrompt" class="flex-1 py-2 px-3 text-center border-b-2 border-transparent hover:border-gray-300">System Prompt</button>  
-          </div>  
-          <div id="panelModel" class="p-4 space-y-4">  
-            <div>  
-              <label class="block text-gray-700 font-medium mb-1">Model name</label>  
-              <input id="set_model" type="text" class="w-full rounded-xl border border-gray-300 px-3 py-2 focus:outline-none focus:ring-2 focus:ring-black/20" placeholder="openai/gpt-4o"/>  
-            </div>  
-            <div class="grid grid-cols-2 gap-3">  
-              <div><label class="block text-gray-700 font-medium mb-1">Temperature <span class="text-gray-400">(0–2)</span></label><input id="set_temperature" type="number" min="0" max="2" step="0.1" class="w-full rounded-xl border border-gray-300 px-3 py-2" placeholder="1.0"/><p class="mt-1 text-xs text-gray-500">Variety. Lower = predictable.</p></div>  
-              <div><label class="block text-gray-700 font-medium mb-1">Top P <span class="text-gray-400">(0–1)</span></label><input id="set_top_p" type="number" min="0" max="1" step="0.01" class="w-full rounded-xl border border-gray-300 px-3 py-2" placeholder="1.0"/><p class="mt-1 text-xs text-gray-500">Nucleus sampling.</p></div>  
-              <div><label class="block text-gray-700 font-medium mb-1">Top K</label><input id="set_top_k" type="number" min="0" step="1" class="w-full rounded-xl border border-gray-300 px-3 py-2" placeholder="0"/><p class="mt-1 text-xs text-gray-500">Token shortlist size.</p></div>  
-              <div><label class="block text-gray-700 font-medium mb-1">Frequency Penalty <span class="text-gray-400">(-2–2)</span></label><input id="set_frequency_penalty" type="number" min="-2" max="2" step="0.1" class="w-full rounded-xl border border-gray-300 px-3 py-2" placeholder="0.0"/><p class="mt-1 text-xs text-gray-500">Discourage repeats by count.</p></div>  
-              <div><label class="block text-gray-700 font-medium mb-1">Presence Penalty <span class="text-gray-400">(-2–2)</span></label><input id="set_presence_penalty" type="number" min="-2" max="2" step="0.1" class="w-full rounded-xl border border-gray-300 px-3 py-2" placeholder="0.0"/><p class="mt-1 text-xs text-gray-500">Discourage seen tokens.</p></div>  
-              <div><label class="block text-gray-700 font-medium mb-1">Repetition Penalty <span class="text-gray-400">(0–2)</span></label><input id="set_repetition_penalty" type="number" min="0" max="2" step="0.1" class="w-full rounded-xl border border-gray-300 px-3 py-2" placeholder="1.0"/><p class="mt-1 text-xs text-gray-500">Reduce verbatim echoes.</p></div>  
-              <div><label class="block text-gray-700 font-medium mb-1">Min P <span class="text-gray-400">(0–1)</span></label><input id="set_min_p" type="number" min="0" max="1" step="0.01" class="w-full rounded-xl border border-gray-300 px-3 py-2" placeholder="0.0"/><p class="mt-1 text-xs text-gray-500">Minimum token prob vs best.</p></div>  
-              <div><label class="block text-gray-700 font-medium mb-1">Top A <span class="text-gray-400">(0–1)</span></label><input id="set_top_a" type="number" min="0" max="1" step="0.01" class="w-full rounded-xl border border-gray-300 px-3 py-2" placeholder="0.0"/><p class="mt-1 text-xs text-gray-500">Adaptive nucleus filter.</p></div>  
-            </div>  
-          </div>  
-          <div id="panelPrompt" class="p-4 space-y-4 hidden">  
-            <div>  
-              <label class="block text-gray-700 font-medium mb-1">System Prompt</label>  
-              <textarea id="set_system_prompt" rows="8" class="w-full rounded-xl border border-gray-300 px-3 py-2 focus:outline-none focus:ring-2 focus:ring-black/20" placeholder="Enter a system prompt to guide the assistant"></textarea>  
-              <p class="mt-1 text-xs text-gray-500">Saved per assistant.</p>  
-            </div>  
-          </div>  
-          <!-- Footer actions: Delete (left), Cancel/Save (right) -->
-          <div class="flex items-center justify-between gap-2 px-4 py-3 border-t">  
-            <button type="button" id="deleteAssistantBtn" class="inline-flex items-center gap-2 px-3 py-2 rounded-xl border border-red-200 text-red-700 hover:bg-red-50">  
-              <svg viewBox="0 0 24 24" class="h-4 w-4" fill="none" stroke="currentColor" stroke-width="2"><path stroke-linecap="round" stroke-linejoin="round" d="M3 6h18M8 6v12a2 2 0 0 0 2 2h4a2 2 0 0 0 2-2V6m-9 0V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2"/></svg>  
-              <span>Delete assistant</span>  
-            </button>  
-            <div class="flex items-center justify-end gap-2">  
-              <button type="button" id="cancelSettings" class="px-3 py-2 rounded-xl border bg-white hover:bg-gray-50">Cancel</button>  
-              <button type="submit" class="px-3 py-2 rounded-xl bg-black text-white hover:bg-black/90">Save</button>  
-            </div>  
-          </div>  
-        </form>  
-      </div>  
-    </div>  
-  </div>    <script>  
-    // === Constants ===  
-    const DEFAULT_MODEL = 'openai/gpt-4o';  
-    const DEFAULT_API_KEY = '';  
-
-    // === Elements ===  
-    const el = Object.fromEntries([  
-      'chat','messages','composer','input','sendBtn','stopBtn','clearBtn','apiBadge','statusText','settingsBtnTop',  
-      'settingsModal','settingsForm','closeSettings','cancelSettings','tabModel','tabPrompt','panelModel','panelPrompt',  
-      'set_model','set_temperature','set_top_p','set_top_k','set_frequency_penalty','set_presence_penalty','set_repetition_penalty','set_min_p','set_top_a','set_system_prompt',  
-      'sidebar','sidebarOverlay','sidebarBtn','assistantList','newAssistantBtn','deleteAssistantBtn'  
-    ].map(id => [id, document.getElementById(id)]));  
-
-    // === Utilities ===  
-    const clamp = (v, min, max) => Math.max(min, Math.min(max, v));  
-    const num = (v, d) => (v == null || v === '' || isNaN(+v)) ? d : +v;  
-    const int = (v, d) => (v == null || v === '' || isNaN(parseInt(v))) ? d : parseInt(v);  
-    const gid = () => Math.random().toString(36).slice(2,9);  
-
-    // === Global store (API key only) ===  
-    const globalStore = {  
-      get apiKey(){ return localStorage.getItem('openrouter_api_key') || DEFAULT_API_KEY || '' },  
-      set apiKey(v){ localStorage.setItem('openrouter_api_key', v || ''); updateStatus(); },  
-    };  
-
-    // === Assistants store (per-assistant settings) ===  
-    const as = {  
-      key: 'assistants_v1',  
-      activeKey: 'active_assistant_id',  
-      load(){ try{ return JSON.parse(localStorage.getItem(this.key)||'[]') }catch{ return [] } },  
-      save(list){ localStorage.setItem(this.key, JSON.stringify(list||[])) },  
-      getActiveId(){ return localStorage.getItem(this.activeKey) || null },  
-      setActiveId(id){ localStorage.setItem(this.activeKey, id||'') },  
-    };  
-
-    let assistants = as.load();  
-    if (!assistants.length){  
-      const id = gid();  
-      assistants = [{ id, name: 'Default', settings: { model: DEFAULT_MODEL, temperature:1, top_p:1, top_k:0, frequency_penalty:0, presence_penalty:0, repetition_penalty:1, min_p:0, top_a:0, system_prompt:'' } }];  
-      as.save(assistants);  
-      as.setActiveId(id);  
-    }  
-
-    // Derived helpers for current assistant  
-    const getActive = () => assistants.find(a => a.id === as.getActiveId()) || assistants[0];  
-    const setActive = (id) => { as.setActiveId(id); renderSidebar(); reflectActiveAssistant(); clearChat(); };  
-
-    const createDefaultAssistant = () => ({ id: gid(), name: 'Default', settings: { model: DEFAULT_MODEL, temperature:1, top_p:1, top_k:0, frequency_penalty:0, presence_penalty:0, repetition_penalty:1, min_p:0, top_a:0, system_prompt:'' } });
-
-    // === Legacy-compatible settings proxy bound to active assistant ===  
-    const store = new Proxy({}, {  
-      get(_, prop){  
-        if (prop === 'apiKey') return globalStore.apiKey;  
-        const a = getActive();  
-        if (prop === 'model') return a.settings.model;  
-        if (prop in a.settings) return a.settings[prop];  
-        if (prop === 'system_prompt') return a.settings.system_prompt;  
-        return undefined;  
-      },  
-      set(_, prop, val){  
-        if (prop === 'apiKey'){ globalStore.apiKey = val; return true; }  
-        const idx = assistants.findIndex(a => a.id === getActive().id);  
-        if (idx >= 0){  
-          if (prop === 'model') assistants[idx].settings.model = val || DEFAULT_MODEL;  
-          else if (prop === 'system_prompt') assistants[idx].settings.system_prompt = val || '';  
-          else assistants[idx].settings[prop] = val;  
-          as.save(assistants);  
-          return true;  
-        }  
-        return false;  
-      }  
-    });  
-
-    // === Runtime state ===  
-    const state = { messages: [], busy: false, controller: null };  
-
-    // === UI helpers ===  
-    const getModelShort = () => {  
-      const m = store.model || '';  
-      return m.includes('/') ? m.split('/').pop() : m;  
-    };  
-
-    function reflectActiveAssistant(){  
-      const a = getActive();  
-      el.settingsBtnTop.title = `Settings — ${a.name}`;  
-    }  
-
-    function renderSidebar(){  
-      const activeId = as.getActiveId();  
-      el.assistantList.innerHTML = assistants.map(a => `  
-        <button data-asst-id="${a.id}" class="w-full text-left px-3 py-2 hover:bg-gray-50 flex items-center gap-2 ${a.id===activeId?'bg-gray-100':''}">  
-          <span class="h-6 w-6 rounded-full bg-gray-200 flex items-center justify-center">🤖</span>  
-          <span class="truncate">${a.name}</span>  
-        </button>  
-      `).join('');  
-    }  
-
-    function addMessage(role, content){  
-      const row = document.createElement('div');  
-      row.className = 'flex gap-3';  
-      const avatar = document.createElement('div');  
-      avatar.className = 'cursor-pointer shrink-0 h-8 w-8 rounded-full flex items-center justify-center ' + (role === 'user' ? 'bg-gray-900 text-white' : 'bg-gray-200 text-gray-900');  
-      avatar.textContent = role === 'user' ? '🧑' : '🤖';  
-      if (role !== 'user') avatar.setAttribute('data-assistant-avatar','');  
-      const right = document.createElement('div');  
-      right.className = 'flex flex-col';  
-      if (role !== 'user'){  
-        const name = document.createElement('div');  
-        name.className = 'text-xs font-medium text-gray-500 mb-0.5';  
-        name.textContent = getModelShort();  
-        right.appendChild(name);  
-      }  
-      const bubble = document.createElement('div');  
-      bubble.className = 'rounded-2xl px-4 py-3 text-[15px] leading-relaxed whitespace-pre-wrap ' + (role === 'user' ? 'bg-gray-50 border border-gray-200' : 'bg-gray-100');  
-      bubble.textContent = content;  
-      right.appendChild(bubble);  
-      row.appendChild(avatar); row.appendChild(right);  
-      el.messages.appendChild(row);  
-      state.messages.push({ role, content });  
-      queueMicrotask(() => el.chat.scrollTo({ top: el.chat.scrollHeight, behavior: 'smooth' }));  
-      return bubble;  
-    }  
-
-    function addAssistantBubbleStreaming(){  
-      const row = document.createElement('div'); row.className = 'flex gap-3';  
-      const avatar = document.createElement('div'); avatar.className = 'cursor-pointer shrink-0 h-8 w-8 rounded-full flex items-center justify-center bg-gray-200 text-gray-900'; avatar.textContent='🤖'; avatar.setAttribute('data-assistant-avatar','');  
-      const right = document.createElement('div'); right.className='flex flex-col';  
-      const name = document.createElement('div'); name.className='text-xs font-medium text-gray-500 mb-0.5'; name.textContent=getModelShort();  
-      const bubble = document.createElement('div'); bubble.className='rounded-2xl px-4 py-3 text-[15px] leading-relaxed bg-gray-100 text-gray-800 whitespace-pre-wrap'; bubble.textContent='';  
-      right.appendChild(name); right.appendChild(bubble);  
-      row.appendChild(avatar); row.appendChild(right);  
-      el.messages.appendChild(row);  
-      queueMicrotask(() => el.chat.scrollTo({ top: el.chat.scrollHeight }));  
-      return bubble;  
-    }  
-
-    function clearChat(){ state.messages=[]; el.messages.innerHTML=''; }  
-
-    function updateStatus(){  
-      const online = !!store.apiKey;  
-      el.apiBadge.className = 'justify-self-end h-8 min-w-8 px-3 rounded-full border text-xs font-medium inline-flex items-center justify-center gap-1 transition ' + (online ? 'bg-black text-white border-black hover:bg-black/90' : 'bg-gray-100 text-gray-700 border-gray-200 hover:bg-gray-200');  
-      el.statusText.textContent = online ? 'online' : 'offline';  
-    }  
-
-    // === Networking ===  
-    function payloadWithSampling(base){  
-      return Object.assign({}, base, {  
-        temperature: store.temperature,  
-        top_p: store.top_p,  
-        top_k: store.top_k,  
-        frequency_penalty: store.frequency_penalty,  
-        presence_penalty: store.presence_penalty,  
-        repetition_penalty: store.repetition_penalty,  
-        min_p: store.min_p,  
-        top_a: store.top_a,  
-      });  
-    }  
-
-    async function askOpenRouterStreaming(onDelta){  
-      const apiKey = store.apiKey; const model = store.model;  
-      if (!apiKey){ const text = localDemoReply(state.messages[state.messages.length-1]?.content || ''); onDelta(text,true); return { ok:true, text } }  
-      try{  
-        state.controller = new AbortController();  
-        const msgs = [];  
-        if (store.system_prompt) msgs.push({ role:'system', content: store.system_prompt });  
-        msgs.push(...state.messages.filter(m=>m.role!=='system'));  
-        const body = payloadWithSampling({ model, messages: msgs, stream: true });  
-        const res = await fetch('https://openrouter.ai/api/v1/chat/completions',{  
-          method:'POST', headers:{ 'Content-Type':'application/json','Authorization':'Bearer '+apiKey }, body: JSON.stringify(body), signal: state.controller.signal  
-        });  
-        if (!res.ok){ const errText = await res.text().catch(()=> ''); throw new Error(errText || ('HTTP '+res.status)); }  
-        const reader = res.body.getReader(); const decoder = new TextDecoder('utf-8'); let buffer=''; let full='';  
-        while(true){ const { value, done } = await reader.read(); if (done) break; buffer += decoder.decode(value,{stream:true});  
-          let idx; while((idx = buffer.indexOf('\n\n')) !== -1){ const chunk = buffer.slice(0,idx).trim(); buffer = buffer.slice(idx+2); if (!chunk) continue; if (chunk.startsWith('data:')){ const data = chunk.slice(5).trim(); if (data==='[DONE]') continue; try{ const json=JSON.parse(data); const delta=json.choices?.[0]?.delta?.content ?? ''; if (delta){ full+=delta; onDelta(delta,false); } const finish=json.choices?.[0]?.finish_reason; if (finish){ onDelta('',true); } }catch{} } }  
-        }  
-        return { ok:true, text: full };  
-      }catch(e){  
-        const msg = String(e?.message||e);  
-        let hint = 'Request failed.';  
-        if (/401|unauthorized/i.test(msg)) hint = 'Unauthorized (check API key).';  
-        else if (/429|rate/i.test(msg)) hint = 'Rate limited (slow down or upgrade).';  
-        else if (/access|forbidden|403/i.test(msg)) hint = 'Forbidden (model or key scope).';  
-        const fallback = `\n\n${hint}\nSwitching to local demo.\n\n` + localDemoReply(state.messages[state.messages.length-1]?.content || '');  
-        onDelta(fallback,true);  
-        return { ok:false, text: fallback };  
-      }finally{ state.controller = null }  
-    }  
-
-    function localDemoReply(prompt){  
-      const tips = [ 'Tip: click the key badge to set your OpenRouter API key.', 'Click 🤖 to change model & sampling.', 'New chats are stateless here—no history is kept.' ];  
-      const tip = tips[Math.floor(Math.random()*tips.length)];  
-      const mirrored = prompt.split(/\s+/).slice(0,24).join(' ');  
-      return `Local demo mode. You said: "${mirrored}"\n\n${tip}`;  
-    }  
-
-    // === Settings modal logic (per assistant) ===  
-    function openSettings(){  
-      const a = getActive(); const s = a.settings;  
-      el.set_model.value = s.model;  
-      el.set_temperature.value = s.temperature;  
-      el.set_top_p.value = s.top_p;  
-      el.set_top_k.value = s.top_k;  
-      el.set_frequency_penalty.value = s.frequency_penalty;  
-      el.set_presence_penalty.value = s.presence_penalty;  
-      el.set_repetition_penalty.value = s.repetition_penalty;  
-      el.set_min_p.value = s.min_p;  
-      el.set_top_a.value = s.top_a;  
-      el.set_system_prompt.value = s.system_prompt;  
-      showModelTab();  
-      el.settingsModal.classList.remove('hidden');  
-    }  
-    function closeSettings(){ el.settingsModal.classList.add('hidden') }  
-
-    function showModelTab(){ el.tabModel.classList.add('border-black'); el.tabPrompt.classList.remove('border-black'); el.panelModel.classList.remove('hidden'); el.panelPrompt.classList.add('hidden'); }  
-    function showPromptTab(){ el.tabPrompt.classList.add('border-black'); el.tabModel.classList.remove('border-black'); el.panelPrompt.classList.remove('hidden'); el.panelModel.classList.add('hidden'); }  
-
-    // === Events ===  
-    el.closeSettings.addEventListener('click', closeSettings);  
-    el.cancelSettings.addEventListener('click', closeSettings);  
-    el.settingsModal.addEventListener('click', e => { if (e.target === el.settingsModal || e.target.classList.contains('bg-black/30')) closeSettings(); });  
-    el.tabModel.addEventListener('click', showModelTab);  
-    el.tabPrompt.addEventListener('click', showPromptTab);  
-
-    el.settingsForm.addEventListener('submit', (e) => {  
-      e.preventDefault();  
-      const a = getActive(); const s = a.settings;  
-      s.model = (el.set_model.value || DEFAULT_MODEL).trim();  
-      s.temperature = clamp(num(el.set_temperature.value,1.0),0,2);  
-      s.top_p = clamp(num(el.set_top_p.value,1.0),0,1);  
-      s.top_k = Math.max(0, int(el.set_top_k.value,0));  
-      s.frequency_penalty = clamp(num(el.set_frequency_penalty.value,0.0),-2,2);  
-      s.presence_penalty = clamp(num(el.set_presence_penalty.value,0.0),-2,2);  
-      s.repetition_penalty = clamp(num(el.set_repetition_penalty.value,1.0),0,2);  
-      s.min_p = clamp(num(el.set_min_p.value,0.0),0,1);  
-      s.top_a = clamp(num(el.set_top_a.value,0.0),0,1);  
-      s.system_prompt = el.set_system_prompt.value.trim();  
-      as.save(assistants);  
-      closeSettings();  
-      reflectActiveAssistant();  
-    });  
-
-    // NEW: Delete assistant (bottom-left of settings)
-    el.deleteAssistantBtn.addEventListener('click', () => {  
-      const activeId = as.getActiveId();  
-      const active = getActive();  
-      const name = active?.name || 'this assistant';  
-      if (!confirm(`Delete "${name}"?`)) return;  
-      // Remove active from list
-      assistants = assistants.filter(a => a.id !== activeId);  
-      // Persist
-      as.save(assistants);  
-      // Decide next active
-      if (assistants.length === 0){  
-        const def = createDefaultAssistant();  
-        assistants = [def];  
-        as.save(assistants);  
-        as.setActiveId(def.id);  
-      }else{  
-        as.setActiveId(assistants[0].id);  
-      }  
-      // Refresh UI
-      renderSidebar();  
-      reflectActiveAssistant();  
-      clearChat();  
-      closeSettings();  
-    });  
-
-    // Composer  
-    el.composer.addEventListener('submit', async (e) => {  
-      e.preventDefault(); if (state.busy) return; const text = el.input.value.trim(); if (!text) return;  
-      el.input.value=''; el.input.style.height='auto'; addMessage('user', text);  
-      state.busy = true; el.sendBtn.disabled = true; el.stopBtn.classList.remove('hidden');  
-      const assistantBubble = addAssistantBubbleStreaming();  
-      await askOpenRouterStreaming((delta,done)=>{  
-        assistantBubble.textContent += delta;  
-        if (done){ el.sendBtn.disabled=false; el.stopBtn.classList.add('hidden'); state.busy=false; state.messages.push({ role:'assistant', content: assistantBubble.textContent }); queueMicrotask(()=> el.chat.scrollTo({ top: el.chat.scrollHeight, behavior:'smooth' })); }  
-      });  
-    });  
-
-    // Stop streaming  
-    el.stopBtn.addEventListener('click', ()=>{ if (state.controller) state.controller.abort(); el.stopBtn.classList.add('hidden'); el.sendBtn.disabled=false; state.busy=false; });  
-
-    // Open settings on any assistant avatar click  
-    el.messages.addEventListener('click', (e) => { const target = e.target.closest('[data-assistant-avatar]'); if (target) openSettings(); });  
-
-    // Top bar assistant icon opens settings  
-    el.settingsBtnTop.addEventListener('click', openSettings);  
-
-    // Auto-resize textarea  
-    el.input.addEventListener('input', () => { el.input.style.height='auto'; el.input.style.height = Math.min(el.input.scrollHeight,160) + 'px'; });  
-
-    // Clear keeps chat blank  
-    el.clearBtn.addEventListener('click', () => clearChat());  
-
-    // API badge click  
-    el.apiBadge.addEventListener('click', () => {  
-      const currentMasked = store.apiKey ? '********' : '';  
-      const input = prompt('Enter OpenRouter API key (stored locally):', currentMasked);  
-      if (input === null) return;  
-      store.apiKey = input === '********' ? store.apiKey : (input.trim());  
-      alert(store.apiKey ? 'API key saved locally.' : 'API key cleared.');  
-    });  
-
-    // === Sidebar interactions ===  
-    function openSidebar(){ el.sidebar.classList.remove('-translate-x-full'); el.sidebarOverlay.classList.remove('hidden'); }  
-    function closeSidebar(){ el.sidebar.classList.add('-translate-x-full'); el.sidebarOverlay.classList.add('hidden'); }  
-    el.sidebarBtn.addEventListener('click', openSidebar);  
-    el.sidebarOverlay.addEventListener('click', closeSidebar);  
-
-    el.newAssistantBtn.addEventListener('click', () => {  
-      const name = prompt('Name your assistant:');  
-      if (!name) return;  
-      const id = gid();  
-      assistants.unshift({ id, name: name.trim(), settings: { model: DEFAULT_MODEL, temperature:1, top_p:1, top_k:0, frequency_penalty:0, presence_penalty:0, repetition_penalty:1, min_p:0, top_a:0, system_prompt:'' } });  
-      as.save(assistants);  
-      setActive(id);  
-      renderSidebar();  
-      closeSidebar();  
-      reflectActiveAssistant();  
-    });  
-
-    el.assistantList.addEventListener('click', (e) => {  
-      const btn = e.target.closest('[data-asst-id]');  
-      if (!btn) return;  
-      const id = btn.getAttribute('data-asst-id');  
-      if (id){ setActive(id); renderSidebar(); closeSidebar(); reflectActiveAssistant(); }  
-    });  
-
-    // === Init ===  
-    function initFromQuery(){ const url = new URL(location.href); const key = url.searchParams.get('key'); const model = url.searchParams.get('model'); if (key) store.apiKey = key; if (model){ const a=getActive(); a.settings.model = model; as.save(assistants);} }  
-    function init(){ initFromQuery(); updateStatus(); renderSidebar(); reflectActiveAssistant(); clearChat(); }  
-    init();
-
-  </script></body></html>
+<html lang="en">
+<head>
+  <meta charset="utf-8"/>
+  <meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover"/>
+  <title>ChatGPT — Mobile Clone (Light)</title>
+  <script src="https://cdn.tailwindcss.com"></script>
+  <style>
+    :root{--safe-bottom:env(safe-area-inset-bottom)}
+    ::-webkit-scrollbar{height:8px;width:8px}
+    ::-webkit-scrollbar-thumb{background:#e5e7eb;border-radius:999px}
+    .no-scrollbar::-webkit-scrollbar{display:none}
+    .no-scrollbar{-ms-overflow-style:none;scrollbar-width:none}
+  </style>
+</head>
+<body class="bg-white text-gray-900 selection:bg-black/10">
+  <div class="flex flex-col h-dvh max-h-dvh">
+    <header class="sticky top-0 z-20 bg-white/80 backdrop-blur border-b border-gray-200">
+      <div class="mx-auto w-full max-w-2xl px-4 py-3 grid grid-cols-3 items-center">
+        <button id="sidebarBtn" class="h-8 w-8 rounded-xl bg-gray-100 hover:bg-gray-200 active:scale-[.99] transition flex items-center justify-center" title="Assistants">
+          <svg viewBox="0 0 24 24" class="h-5 w-5" fill="none" stroke="currentColor" stroke-width="2"><path stroke-linecap="round" stroke-linejoin="round" d="M4 6h16M4 12h16M4 18h16"/></svg>
+        </button>
+        <button id="settingsBtnTop" class="justify-self-center h-8 w-8 rounded-full bg-gray-200 text-gray-900 flex items-center justify-center hover:bg-gray-300 active:scale-[.99] transition" title="Assistant settings">🤖</button>
+        <div></div>
+      </div>
+    </header>
+    <main id="chat" class="flex-1 overflow-y-auto no-scrollbar">
+      <div id="messages" class="mx-auto w-full max-w-2xl px-4 py-4 sm:py-6 space-y-4"></div>
+      <div class="h-24"></div>
+    </main>
+    <footer class="sticky bottom-0 z-10 bg-gradient-to-t from-white via-white/95 to-white/40 pt-3 pb-[calc(12px+var(--safe-bottom))] border-t border-gray-200">
+      <div class="mx-auto w-full max-w-2xl px-4">
+        <form id="composer" class="group relative flex items-end gap-2">
+          <textarea id="input" rows="1" placeholder="Send a message" spellcheck="true" class="flex-1 resize-none rounded-2xl border border-gray-300 bg-white px-4 py-3 text-[15px] leading-6 placeholder:text-gray-400 focus:outline-none focus:ring-2 focus:ring-black/20 focus:border-gray-300 max-h-40"></textarea>
+          <button id="sendBtn" type="submit" aria-label="Send" class="shrink-0 rounded-2xl bg-black text-white h-10 w-10 inline-flex items-center justify-center shadow-sm hover:bg-black/90 active:scale-[.98] transition disabled:opacity-40 disabled:cursor-not-allowed">
+            <svg viewBox="0 0 24 24" class="h-5 w-5" fill="none" stroke="currentColor" stroke-width="1.8"><path stroke-linecap="round" stroke-linejoin="round" d="M5 12h14M12 5l7 7-7 7"/></svg>
+          </button>
+        </form>
+        <div class="mt-2 flex items-center justify-end text-xs text-gray-500">
+          <div class="flex items-center gap-3">
+            <button id="stopBtn" class="underline decoration-dotted hover:text-gray-700 hidden">Stop</button>
+            <button id="clearBtn" class="underline decoration-dotted hover:text-gray-700">Clear</button>
+          </div>
+        </div>
+      </div>
+    </footer>
+  </div>
+  <div id="sidebarOverlay" class="fixed inset-0 z-40 bg-black/20 hidden"></div>
+  <aside id="sidebar" class="fixed inset-y-0 left-0 z-50 w-72 max-w-[85vw] bg-white border-r border-gray-200 shadow-xl transform -translate-x-full transition-transform duration-200 ease-out flex flex-col">
+    <div class="p-3 border-b flex items-center gap-2">
+      <button id="newAssistantBtn" class="px-3 py-2 rounded-xl bg-black text-white text-sm hover:bg-black/90">New assistant</button>
+      <span class="text-xs text-gray-500">Click name to equip</span>
+    </div>
+    <div id="assistantList" class="flex-1 overflow-y-auto divide-y"></div>
+    <div class="p-3 border-t">
+      <div class="relative">
+        <button id="userMenuBtn" class="w-full flex items-center justify-between px-3 py-2 rounded-xl bg-gray-100 hover:bg-gray-200 active:scale-[.99] transition">
+          <span class="flex items-center gap-2"><span class="h-6 w-6 rounded-full bg-gray-900 text-white flex items-center justify-center">👤</span><span class="text-sm">Account & Backup</span></span>
+          <svg viewBox="0 0 24 24" class="h-4 w-4" fill="none" stroke="currentColor" stroke-width="2"><path stroke-linecap="round" stroke-linejoin="round" d="M6 9l6 6 6-6"/></svg>
+        </button>
+        <div id="userMenu" class="absolute left-0 right-0 bottom-12 translate-y-2 rounded-xl border border-gray-200 bg-white shadow-lg hidden">
+          <button id="apiKeyOption" class="w-full text-left px-3 py-2 text-sm hover:bg-gray-50">Enter OpenRouter API key</button>
+          <button id="importOption" class="w-full text-left px-3 py-2 text-sm hover:bg-gray-50">Import backup (.json)</button>
+          <button id="exportOption" class="w-full text-left px-3 py-2 text-sm hover:bg-gray-50">Export backup (.json)</button>
+        </div>
+        <input id="importInput" type="file" accept="application/json,.json" class="hidden"/>
+      </div>
+    </div>
+  </aside>
+  <div id="settingsModal" class="hidden fixed inset-0 z-50">
+    <div class="absolute inset-0 bg-black/30"></div>
+    <div class="absolute inset-x-0 top-12 mx-auto w-full max-w-md px-4">
+      <div class="rounded-2xl bg-white shadow-xl border border-gray-200 overflow-hidden">
+        <div class="px-4 py-3 border-b text-sm font-semibold flex items-center justify-between">
+          <span>Assistant Settings</span>
+          <button id="closeSettings" class="p-1 rounded hover:bg-gray-100" aria-label="Close">
+            <svg viewBox="0 0 24 24" class="h-5 w-5" fill="none" stroke="currentColor" stroke-width="2"><path stroke-linecap="round" stroke-linejoin="round" d="M6 18L18 6M6 6l12 12"/></svg>
+          </button>
+        </div>
+        <form id="settingsForm" class="text-sm">
+          <div class="border-b flex text-sm font-medium">
+            <button type="button" id="tabModel" class="flex-1 py-2 px-3 text-center border-b-2 border-black">Model & Sampling</button>
+            <button type="button" id="tabPrompt" class="flex-1 py-2 px-3 text-center border-b-2 border-transparent hover:border-gray-300">System Prompt</button>
+          </div>
+          <div id="panelModel" class="p-4 space-y-4">
+            <div>
+              <label class="block text-gray-700 font-medium mb-1">Model name</label>
+              <input id="set_model" type="text" class="w-full rounded-xl border border-gray-300 px-3 py-2 focus:outline-none focus:ring-2 focus:ring-black/20" placeholder="openai/gpt-4o"/>
+            </div>
+            <div class="grid grid-cols-2 gap-3">
+              <div><label class="block text-gray-700 font-medium mb-1">Temperature <span class="text-gray-400">(0–2)</span></label><input id="set_temperature" type="number" min="0" max="2" step="0.1" class="w-full rounded-xl border border-gray-300 px-3 py-2" placeholder="1.0"/><p class="mt-1 text-xs text-gray-500">Variety. Lower = predictable.</p></div>
+              <div><label class="block text-gray-700 font-medium mb-1">Top P <span class="text-gray-400">(0–1)</span></label><input id="set_top_p" type="number" min="0" max="1" step="0.01" class="w-full rounded-xl border border-gray-300 px-3 py-2" placeholder="1.0"/><p class="mt-1 text-xs text-gray-500">Nucleus sampling.</p></div>
+              <div><label class="block text-gray-700 font-medium mb-1">Top K</label><input id="set_top_k" type="number" min="0" step="1" class="w-full rounded-xl border border-gray-300 px-3 py-2" placeholder="0"/><p class="mt-1 text-xs text-gray-500">Token shortlist size.</p></div>
+              <div><label class="block text-gray-700 font-medium mb-1">Frequency Penalty <span class="text-gray-400">(-2–2)</span></label><input id="set_frequency_penalty" type="number" min="-2" max="2" step="0.1" class="w-full rounded-xl border border-gray-300 px-3 py-2" placeholder="0.0"/><p class="mt-1 text-xs text-gray-500">Discourage repeats by count.</p></div>
+              <div><label class="block text-gray-700 font-medium mb-1">Presence Penalty <span class="text-gray-400">(-2–2)</span></label><input id="set_presence_penalty" type="number" min="-2" max="2" step="0.1" class="w-full rounded-xl border border-gray-300 px-3 py-2" placeholder="0.0"/><p class="mt-1 text-xs text-gray-500">Discourage seen tokens.</p></div>
+              <div><label class="block text-gray-700 font-medium mb-1">Repetition Penalty <span class="text-gray-400">(0–2)</span></label><input id="set_repetition_penalty" type="number" min="0" max="2" step="0.1" class="w-full rounded-xl border border-gray-300 px-3 py-2" placeholder="1.0"/><p class="mt-1 text-xs text-gray-500">Reduce verbatim echoes.</p></div>
+              <div><label class="block text-gray-700 font-medium mb-1">Min P <span class="text-gray-400">(0–1)</span></label><input id="set_min_p" type="number" min="0" max="1" step="0.01" class="w-full rounded-xl border border-gray-300 px-3 py-2" placeholder="0.0"/><p class="mt-1 text-xs text-gray-500">Minimum token prob vs best.</p></div>
+              <div><label class="block text-gray-700 font-medium mb-1">Top A <span class="text-gray-400">(0–1)</span></label><input id="set_top_a" type="number" min="0" max="1" step="0.01" class="w-full rounded-xl border border-gray-300 px-3 py-2" placeholder="0.0"/><p class="mt-1 text-xs text-gray-500">Adaptive nucleus filter.</p></div>
+            </div>
+          </div>
+          <div id="panelPrompt" class="p-4 space-y-4 hidden">
+            <div>
+              <label class="block text-gray-700 font-medium mb-1">System Prompt</label>
+              <textarea id="set_system_prompt" rows="8" class="w-full rounded-xl border border-gray-300 px-3 py-2 focus:outline-none focus:ring-2 focus:ring-black/20" placeholder="Enter a system prompt to guide the assistant"></textarea>
+              <p class="mt-1 text-xs text-gray-500">Saved per assistant.</p>
+            </div>
+          </div>
+          <div class="flex items-center justify-between gap-2 px-4 py-3 border-t">
+            <button type="button" id="deleteAssistantBtn" class="inline-flex items-center gap-2 px-3 py-2 rounded-xl border border-red-200 text-red-700 hover:bg-red-50">
+              <svg viewBox="0 0 24 24" class="h-4 w-4" fill="none" stroke="currentColor" stroke-width="2"><path stroke-linecap="round" stroke-linejoin="round" d="M3 6h18M8 6v12a2 2 0 0 0 2 2h4a2 2 0 0 0 2-2V6m-9 0V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2"/></svg>
+              <span>Delete assistant</span>
+            </button>
+            <div class="flex items-center justify-end gap-2">
+              <button type="button" id="cancelSettings" class="px-3 py-2 rounded-xl border bg-white hover:bg-gray-50">Cancel</button>
+              <button type="submit" class="px-3 py-2 rounded-xl bg-black text-white hover:bg-black/90">Save</button>
+            </div>
+          </div>
+        </form>
+      </div>
+    </div>
+  </div>
+  <script>
+    const DEFAULT_MODEL = 'openai/gpt-4o'
+    const DEFAULT_API_KEY = ''
+    const el = Object.fromEntries([
+      'chat','messages','composer','input','sendBtn','stopBtn','clearBtn','settingsBtnTop',
+      'settingsModal','settingsForm','closeSettings','cancelSettings','tabModel','tabPrompt','panelModel','panelPrompt',
+      'set_model','set_temperature','set_top_p','set_top_k','set_frequency_penalty','set_presence_penalty','set_repetition_penalty','set_min_p','set_top_a','set_system_prompt',
+      'sidebar','sidebarOverlay','sidebarBtn','assistantList','newAssistantBtn','deleteAssistantBtn','userMenuBtn','userMenu','importInput','importOption','exportOption','apiKeyOption'
+    ].map(id => [id, document.getElementById(id)]))
+    const clamp = (v, min, max) => Math.max(min, Math.min(max, v))
+    const num = (v, d) => (v == null || v === '' || isNaN(+v)) ? d : +v
+    const int = (v, d) => (v == null || v === '' || isNaN(parseInt(v))) ? d : parseInt(v)
+    const gid = () => Math.random().toString(36).slice(2,9)
+    const globalStore = {
+      get apiKey(){ return localStorage.getItem('openrouter_api_key') || DEFAULT_API_KEY || '' },
+      set apiKey(v){ localStorage.setItem('openrouter_api_key', v || ''); updateStatus() },
+    }
+    const as = {
+      key: 'assistants_v1',
+      activeKey: 'active_assistant_id',
+      load(){ try{ return JSON.parse(localStorage.getItem(this.key)||'[]') }catch{ return [] } },
+      save(list){ localStorage.setItem(this.key, JSON.stringify(list||[])) },
+      getActiveId(){ return localStorage.getItem(this.activeKey) || null },
+      setActiveId(id){ localStorage.setItem(this.activeKey, id||'') },
+    }
+    let assistants = as.load()
+    if (!assistants.length){
+      const id = gid()
+      assistants = [{ id, name: 'Default', settings: { model: DEFAULT_MODEL, temperature:1, top_p:1, top_k:0, frequency_penalty:0, presence_penalty:0, repetition_penalty:1, min_p:0, top_a:0, system_prompt:'' } }]
+      as.save(assistants)
+      as.setActiveId(id)
+    }
+    const getActive = () => assistants.find(a => a.id === as.getActiveId()) || assistants[0]
+    const setActive = (id) => { as.setActiveId(id); renderSidebar(); reflectActiveAssistant(); clearChat() }
+    const createDefaultAssistant = () => ({ id: gid(), name: 'Default', settings: { model: DEFAULT_MODEL, temperature:1, top_p:1, top_k:0, frequency_penalty:0, presence_penalty:0, repetition_penalty:1, min_p:0, top_a:0, system_prompt:'' } })
+    const store = new Proxy({}, {
+      get(_, prop){
+        if (prop === 'apiKey') return globalStore.apiKey
+        const a = getActive()
+        if (prop === 'model') return a.settings.model
+        if (prop in a.settings) return a.settings[prop]
+        if (prop === 'system_prompt') return a.settings.system_prompt
+        return undefined
+      },
+      set(_, prop, val){
+        if (prop === 'apiKey'){ globalStore.apiKey = val; return true }
+        const idx = assistants.findIndex(a => a.id === getActive().id)
+        if (idx >= 0){
+          if (prop === 'model') assistants[idx].settings.model = val || DEFAULT_MODEL
+          else if (prop === 'system_prompt') assistants[idx].settings.system_prompt = val || ''
+          else assistants[idx].settings[prop] = val
+          as.save(assistants)
+          return true
+        }
+        return false
+      }
+    })
+    const state = { messages: [], busy: false, controller: null }
+    const getModelShort = () => { const m = store.model || ''; return m.includes('/') ? m.split('/').pop() : m }
+    function reflectActiveAssistant(){ const a = getActive(); el.settingsBtnTop.title = `Settings — ${a.name}` }
+    function renderSidebar(){
+      const activeId = as.getActiveId()
+      el.assistantList.innerHTML = assistants.map(a => `
+        <button data-asst-id="${a.id}" class="w-full text-left px-3 py-2 hover:bg-gray-50 flex items-center gap-2 ${a.id===activeId?'bg-gray-100':''}">
+          <span class="h-6 w-6 rounded-full bg-gray-200 flex items-center justify-center">🤖</span>
+          <span class="truncate">${a.name}</span>
+        </button>
+      `).join('')
+    }
+    function addMessage(role, content){
+      const row = document.createElement('div')
+      row.className = 'flex gap-3'
+      const avatar = document.createElement('div')
+      avatar.className = 'cursor-pointer shrink-0 h-8 w-8 rounded-full flex items-center justify-center ' + (role === 'user' ? 'bg-gray-900 text-white' : 'bg-gray-200 text-gray-900')
+      avatar.textContent = role === 'user' ? '🧑' : '🤖'
+      if (role !== 'user') avatar.setAttribute('data-assistant-avatar','')
+      const right = document.createElement('div')
+      right.className = 'flex flex-col'
+      if (role !== 'user'){
+        const name = document.createElement('div')
+        name.className = 'text-xs font-medium text-gray-500 mb-0.5'
+        name.textContent = getModelShort()
+        right.appendChild(name)
+      }
+      const bubble = document.createElement('div')
+      bubble.className = 'rounded-2xl px-4 py-3 text-[15px] leading-relaxed whitespace-pre-wrap ' + (role === 'user' ? 'bg-gray-50 border border-gray-200' : 'bg-gray-100')
+      bubble.textContent = content
+      right.appendChild(bubble)
+      row.appendChild(avatar); row.appendChild(right)
+      el.messages.appendChild(row)
+      state.messages.push({ role, content })
+      queueMicrotask(() => el.chat.scrollTo({ top: el.chat.scrollHeight, behavior: 'smooth' }))
+      return bubble
+    }
+    function addAssistantBubbleStreaming(){
+      const row = document.createElement('div'); row.className = 'flex gap-3'
+      const avatar = document.createElement('div'); avatar.className = 'cursor-pointer shrink-0 h-8 w-8 rounded-full flex items-center justify-center bg-gray-200 text-gray-900'; avatar.textContent='🤖'; avatar.setAttribute('data-assistant-avatar','')
+      const right = document.createElement('div'); right.className='flex flex-col'
+      const name = document.createElement('div'); name.className='text-xs font-medium text-gray-500 mb-0.5'; name.textContent=getModelShort()
+      const bubble = document.createElement('div'); bubble.className='rounded-2xl px-4 py-3 text-[15px] leading-relaxed bg-gray-100 text-gray-800 whitespace-pre-wrap'; bubble.textContent=''
+      right.appendChild(name); right.appendChild(bubble)
+      row.appendChild(avatar); row.appendChild(right)
+      el.messages.appendChild(row)
+      queueMicrotask(() => el.chat.scrollTo({ top: el.chat.scrollHeight }))
+      return bubble
+    }
+    function clearChat(){ state.messages=[]; el.messages.innerHTML='' }
+    function updateStatus(){}
+    function payloadWithSampling(base){
+      return Object.assign({}, base, {
+        temperature: store.temperature,
+        top_p: store.top_p,
+        top_k: store.top_k,
+        frequency_penalty: store.frequency_penalty,
+        presence_penalty: store.presence_penalty,
+        repetition_penalty: store.repetition_penalty,
+        min_p: store.min_p,
+        top_a: store.top_a,
+      })
+    }
+    async function askOpenRouterStreaming(onDelta){
+      const apiKey = store.apiKey; const model = store.model
+      if (!apiKey){ const text = localDemoReply(state.messages[state.messages.length-1]?.content || ''); onDelta(text,true); return { ok:true, text } }
+      try{
+        state.controller = new AbortController()
+        const msgs = []
+        if (store.system_prompt) msgs.push({ role:'system', content: store.system_prompt })
+        msgs.push(...state.messages.filter(m=>m.role!=='system'))
+        const body = payloadWithSampling({ model, messages: msgs, stream: true })
+        const res = await fetch('https://openrouter.ai/api/v1/chat/completions',{
+          method:'POST', headers:{ 'Content-Type':'application/json','Authorization':'Bearer '+apiKey }, body: JSON.stringify(body), signal: state.controller.signal
+        })
+        if (!res.ok){ const errText = await res.text().catch(()=> ''); throw new Error(errText || ('HTTP '+res.status)) }
+        const reader = res.body.getReader(); const decoder = new TextDecoder('utf-8'); let buffer=''; let full=''
+        while(true){ const { value, done } = await reader.read(); if (done) break; buffer += decoder.decode(value,{stream:true});
+          let idx; while((idx = buffer.indexOf('\n\n')) !== -1){ const chunk = buffer.slice(0,idx).trim(); buffer = buffer.slice(idx+2); if (!chunk) continue; if (chunk.startsWith('data:')){ const data = chunk.slice(5).trim(); if (data==='[DONE]') continue; try{ const json=JSON.parse(data); const delta=json.choices?.[0]?.delta?.content ?? ''; if (delta){ full+=delta; onDelta(delta,false) } const finish=json.choices?.[0]?.finish_reason; if (finish){ onDelta('',true) } }catch{} } }
+        }
+        return { ok:true, text: full }
+      }catch(e){
+        const msg = String(e?.message||e)
+        let hint = 'Request failed.'
+        if (/401|unauthorized/i.test(msg)) hint = 'Unauthorized (check API key).'
+        else if (/429|rate/i.test(msg)) hint = 'Rate limited (slow down or upgrade).'
+        else if (/access|forbidden|403/i.test(msg)) hint = 'Forbidden (model or key scope).'
+        const fallback = `\n\n${hint}\nSwitching to local demo.\n\n` + localDemoReply(state.messages[state.messages.length-1]?.content || '')
+        onDelta(fallback,true)
+        return { ok:false, text: fallback }
+      }finally{ state.controller = null }
+    }
+    function localDemoReply(prompt){
+      const tips = [ 'Tip: open the sidebar → Account & Backup to set your OpenRouter API key.', 'Click 🤖 to change model & sampling.', 'New chats are stateless here—no history is kept.' ]
+      const tip = tips[Math.floor(Math.random()*tips.length)]
+      const mirrored = prompt.split(/\s+/).slice(0,24).join(' ')
+      return `Local demo mode. You said: "${mirrored}"\n\n${tip}`
+    }
+    function openSettings(){
+      const a = getActive(); const s = a.settings
+      el.set_model.value = s.model
+      el.set_temperature.value = s.temperature
+      el.set_top_p.value = s.top_p
+      el.set_top_k.value = s.top_k
+      el.set_frequency_penalty.value = s.frequency_penalty
+      el.set_presence_penalty.value = s.presence_penalty
+      el.set_repetition_penalty.value = s.repetition_penalty
+      el.set_min_p.value = s.min_p
+      el.set_top_a.value = s.top_a
+      el.set_system_prompt.value = s.system_prompt
+      showModelTab()
+      el.settingsModal.classList.remove('hidden')
+    }
+    function closeSettings(){ el.settingsModal.classList.add('hidden') }
+    function showModelTab(){ el.tabModel.classList.add('border-black'); el.tabPrompt.classList.remove('border-black'); el.panelModel.classList.remove('hidden'); el.panelPrompt.classList.add('hidden') }
+    function showPromptTab(){ el.tabPrompt.classList.add('border-black'); el.tabModel.classList.remove('border-black'); el.panelPrompt.classList.remove('hidden'); el.panelModel.classList.add('hidden') }
+    el.closeSettings.addEventListener('click', closeSettings)
+    el.cancelSettings.addEventListener('click', closeSettings)
+    el.settingsModal.addEventListener('click', e => { if (e.target === el.settingsModal || e.target.classList.contains('bg-black/30')) closeSettings() })
+    el.tabModel.addEventListener('click', showModelTab)
+    el.tabPrompt.addEventListener('click', showPromptTab)
+    el.settingsForm.addEventListener('submit', (e) => {
+      e.preventDefault()
+      const a = getActive(); const s = a.settings
+      s.model = (el.set_model.value || DEFAULT_MODEL).trim()
+      s.temperature = clamp(num(el.set_temperature.value,1.0),0,2)
+      s.top_p = clamp(num(el.set_top_p.value,1.0),0,1)
+      s.top_k = Math.max(0, int(el.set_top_k.value,0))
+      s.frequency_penalty = clamp(num(el.set_frequency_penalty.value,0.0),-2,2)
+      s.presence_penalty = clamp(num(el.set_presence_penalty.value,0.0),-2,2)
+      s.repetition_penalty = clamp(num(el.set_repetition_penalty.value,1.0),0,2)
+      s.min_p = clamp(num(el.set_min_p.value,0.0),0,1)
+      s.top_a = clamp(num(el.set_top_a.value,0.0),0,1)
+      s.system_prompt = el.set_system_prompt.value.trim()
+      as.save(assistants)
+      closeSettings()
+      reflectActiveAssistant()
+    })
+    el.deleteAssistantBtn.addEventListener('click', () => {
+      const activeId = as.getActiveId()
+      const active = getActive()
+      const name = active?.name || 'this assistant'
+      if (!confirm(`Delete "${name}"?`)) return
+      assistants = assistants.filter(a => a.id !== activeId)
+      as.save(assistants)
+      if (assistants.length === 0){
+        const def = createDefaultAssistant()
+        assistants = [def]
+        as.save(assistants)
+        as.setActiveId(def.id)
+      }else{
+        as.setActiveId(assistants[0].id)
+      }
+      renderSidebar()
+      reflectActiveAssistant()
+      clearChat()
+      closeSettings()
+    })
+    el.composer.addEventListener('submit', async (e) => {
+      e.preventDefault(); if (state.busy) return; const text = el.input.value.trim(); if (!text) return
+      el.input.value=''; el.input.style.height='auto'; addMessage('user', text)
+      state.busy = true; el.sendBtn.disabled = true; el.stopBtn.classList.remove('hidden')
+      const assistantBubble = addAssistantBubbleStreaming()
+      await askOpenRouterStreaming((delta,done)=>{
+        assistantBubble.textContent += delta
+        if (done){ el.sendBtn.disabled=false; el.stopBtn.classList.add('hidden'); state.busy=false; state.messages.push({ role:'assistant', content: assistantBubble.textContent }); queueMicrotask(()=> el.chat.scrollTo({ top: el.chat.scrollHeight, behavior:'smooth' })) }
+      })
+    })
+    el.stopBtn.addEventListener('click', ()=>{ if (state.controller) state.controller.abort(); el.stopBtn.classList.add('hidden'); el.sendBtn.disabled=false; state.busy=false })
+    el.messages.addEventListener('click', (e) => { const target = e.target.closest('[data-assistant-avatar]'); if (target) openSettings() })
+    el.settingsBtnTop.addEventListener('click', openSettings)
+    el.input.addEventListener('input', () => { el.input.style.height='auto'; el.input.style.height = Math.min(el.input.scrollHeight,160) + 'px' })
+    el.clearBtn.addEventListener('click', () => clearChat())
+    function openApiKeyPrompt(){
+      const currentMasked = store.apiKey ? '********' : ''
+      const input = prompt('Enter OpenRouter API key (stored locally):', currentMasked)
+      if (input === null) return
+      store.apiKey = input === '********' ? store.apiKey : (input.trim())
+      alert(store.apiKey ? 'API key saved locally.' : 'API key cleared.')
+    }
+    function toggleUserMenu(show){ if (show===true){ el.userMenu.classList.remove('hidden') } else if (show===false){ el.userMenu.classList.add('hidden') } else { el.userMenu.classList.toggle('hidden') } }
+    el.userMenuBtn.addEventListener('click', (e)=>{ e.stopPropagation(); toggleUserMenu() })
+    document.addEventListener('click', (e)=>{ if (!el.userMenu.contains(e.target) && !el.userMenuBtn.contains(e.target)) toggleUserMenu(false) })
+    el.apiKeyOption.addEventListener('click', ()=>{ toggleUserMenu(false); openApiKeyPrompt() })
+    el.exportOption.addEventListener('click', ()=>{
+      const payload = { version:1, activeId: as.getActiveId(), assistants }
+      const blob = new Blob([JSON.stringify(payload,null,2)], { type:'application/json' })
+      const url = URL.createObjectURL(blob)
+      const a = document.createElement('a')
+      const ts = new Date()
+      const pad = n=>String(n).padStart(2,'0')
+      const fname = `assistants-backup-${ts.getFullYear()}${pad(ts.getMonth()+1)}${pad(ts.getDate())}-${pad(ts.getHours())}${pad(ts.getMinutes())}${pad(ts.getSeconds())}.json`
+      a.href = url; a.download = fname; document.body.appendChild(a); a.click(); a.remove(); URL.revokeObjectURL(url)
+      toggleUserMenu(false)
+    })
+    el.importOption.addEventListener('click', ()=>{ el.importInput.value=''; el.importInput.click() })
+    el.importInput.addEventListener('change', async ()=>{
+      const file = el.importInput.files?.[0]; if (!file) return
+      try{
+        const text = await file.text()
+        const data = JSON.parse(text)
+        const list = Array.isArray(data) ? data : (Array.isArray(data.assistants) ? data.assistants : null)
+        if (!list) throw new Error('Invalid backup format')
+        assistants = list
+        as.save(assistants)
+        const activeId = data.activeId && assistants.some(a=>a.id===data.activeId) ? data.activeId : (assistants[0]?.id || null)
+        as.setActiveId(activeId)
+        renderSidebar(); reflectActiveAssistant(); clearChat(); toggleUserMenu(false); closeSidebar();
+        alert('Backup imported.')
+      }catch(err){ alert('Import failed: ' + (err?.message||err)) }
+    })
+    function openSidebar(){ el.sidebar.classList.remove('-translate-x-full'); el.sidebarOverlay.classList.remove('hidden') }
+    function closeSidebar(){ el.sidebar.classList.add('-translate-x-full'); el.sidebarOverlay.classList.add('hidden') }
+    el.sidebarBtn.addEventListener('click', openSidebar)
+    el.sidebarOverlay.addEventListener('click', closeSidebar)
+    el.newAssistantBtn.addEventListener('click', () => {
+      const name = prompt('Name your assistant:')
+      if (!name) return
+      const id = gid()
+      assistants.unshift({ id, name: name.trim(), settings: { model: DEFAULT_MODEL, temperature:1, top_p:1, top_k:0, frequency_penalty:0, presence_penalty:0, repetition_penalty:1, min_p:0, top_a:0, system_prompt:'' } })
+      as.save(assistants)
+      setActive(id)
+      renderSidebar()
+      closeSidebar()
+      reflectActiveAssistant()
+    })
+    el.assistantList.addEventListener('click', (e) => {
+      const btn = e.target.closest('[data-asst-id]')
+      if (!btn) return
+      const id = btn.getAttribute('data-asst-id')
+      if (id){ setActive(id); renderSidebar(); closeSidebar(); reflectActiveAssistant() }
+    })
+    function initFromQuery(){ const url = new URL(location.href); const key = url.searchParams.get('key'); const model = url.searchParams.get('model'); if (key) globalStore.apiKey = key; if (model){ const a=getActive(); a.settings.model = model; as.save(assistants)} }
+    function init(){ initFromQuery(); updateStatus(); renderSidebar(); reflectActiveAssistant(); clearChat() }
+    init()
+  </script>
+</body>
+</html>
