diff --git a/content/panel.js b/content/panel.js
index 9f01881..7a16c5d 100644
--- a/content/panel.js
+++ b/content/panel.js
@@ -7,7 +7,7 @@
  connected: false,
  loopsLeft: 0, loopsMax: 0,
  dailyCount: 0, dailyMax: 0,
- resetCbs: [], stopCbs: [], saveCbs: [], startCbs: [], dotMode: null, transport: 'dom', accLimit: 900000, lastMetrics: null, forceInject: false, mcpTimer: null
+ resetCbs: [], stopCbs: [], saveCbs: [], startCbs: [], dotMode: null, transport: 'dom', accLimit: 900000, lastMetrics: null, forceInject: false, mcpTimer: null, togglePending: false
  };
  var el = {};
  function byId(id) { return document.getElementById(id); }
@@ -27,14 +27,13 @@
  var title = mk('span', 'dshmem-title', 'DSH Memory');
  el.phase = mk('span', 'dshmem-phase', 'Off');
  el.phase.id = 'dshmem-phase';
- el.toggle = mk('span', 'dshmem-toggle', '-');
- head.appendChild(el.dot); head.appendChild(title); head.appendChild(el.phase); head.appendChild(el.toggle);
+ el.collapse = mk('span', 'dshmem-toggle', '-');
+ head.appendChild(el.dot); head.appendChild(title); head.appendChild(el.phase); head.appendChild(el.collapse);
  el.body = mk('div', 'dshmem-body');
  root.appendChild(head); root.appendChild(el.body);
  var row1 = mk('div', 'dshmem-row');
- el.start = mk('button', 'dshmem-btn primary', 'Start'); el.restart = mk('button', 'dshmem-btn', 'Restart');
- el.stop = mk('button', 'dshmem-btn danger', 'Stop');
- row1.appendChild(el.start); row1.appendChild(el.stop); row1.appendChild(el.restart);
+ el.toggle = mk('button', 'dshmem-btn primary', 'Start'); el.restart = mk('button', 'dshmem-btn', 'Restart');
+ row1.appendChild(el.toggle); row1.appendChild(el.restart);
  el.body.appendChild(row1); el.stats = mk('div','dshmem-stats'); el.stats.id='dshmem-stats'; el.body.appendChild(el.stats); el.metrics = mk('div','dshmem-stats'); el.metrics.id='dshmem-metrics'; el.metrics.textContent='metrics: —'; el.body.appendChild(el.metrics);
  var setBox = mk('div', 'dshmem-fold-box');
  el.settingsHead = mk('div', 'dshmem-fold-head');
@@ -88,15 +87,25 @@
  document.body.appendChild(root);
  }
  function wire() {
- el.toggle.addEventListener('click', function () {
+ el.collapse.addEventListener('click', function () {
  el.body.style.display = el.body.style.display === 'none' ? '' : 'none';
  });
  el.settingsHead.addEventListener('click', function () {
  var open = el.settingsBox.classList.toggle('open');
  el.settingsArrow.textContent = open ? '\u25BC' : '\u25B6';
  }); el.transportToggle.addEventListener('click', function () { state.transport = state.transport === 'dom' ? 'sse' : 'dom'; el.transportToggle.textContent = state.transport === 'dom' ? 'DOM' : 'SSE'; try { chrome.storage.local.set({ 'dshmem-transport': state.transport }) } catch (e) { } });
- el.stop.addEventListener('click', function () { el.start.disabled = false; state.stopCbs.forEach(function (cb) { try { cb(); } catch (e) {} }); });
- el.restart.addEventListener('click', function () { API.restartBridge(); }); el.start.addEventListener('click', function () { el.start.disabled = true; state.startCbs.forEach(function (cb) { try { cb(); } catch (e) {} }); });
+ el.toggle.addEventListener('click', function () {
+ if (state.togglePending) return;
+ state.togglePending = true;
+ setTimeout(function () { state.togglePending = false; }, 400);
+ var running = (state.phase && state.phase !== 'off');
+ if (running) {
+ state.stopCbs.forEach(function (cb) { try { cb(); } catch (e) {} });
+ } else {
+ state.startCbs.forEach(function (cb) { try { cb(); } catch (e) {} });
+ }
+ });
+ el.restart.addEventListener('click', function () { API.restartBridge(); });
  el.accLimit.addEventListener('change', function () { var n = parseInt(el.accLimit.value, 10); if (!n || n < 1000) n = 900000; state.accLimit = n; try { chrome.storage.local.set({ 'dshmem-acc-limit': n }) } catch (e) { } API.setMetrics(state.lastMetrics); }); el.save.addEventListener('click', function () { var v = el.token.value || ''; if (!v) { API.log('token not changed (empty)'); return; } state.saveCbs.forEach(function (cb) { try { cb(v); } catch (e) {} }); });
  el.stg.addEventListener('click', function () { API.toggleForceInject(); });
  el.health.addEventListener('click', function () {
@@ -119,9 +128,17 @@
  el.mcpRescan.addEventListener('click', function () { API.mcpRescan(); });
  }
  var API = {
- setPhase: function (p) { state.phase = p; if (el.phase) el.phase.textContent = p; },
+ setPhase: function (p) {
+ state.phase = p;
+ if (el.phase) el.phase.textContent = p;
+ if (el.toggle) {
+ var running = (p && p !== 'off');
+ el.toggle.textContent = running ? 'Stop' : 'Start';
+ el.toggle.className = 'dshmem-btn ' + (running ? 'danger' : 'primary');
+ }
+ },
  setConnected: function (b) { state.connected = !!b; API._applyDot(); }, setDot: function (m) { state.dotMode = m || null; API._applyDot(); }, _applyDot: function () { if (!el.dot) return; var cls = 'dshmem-dot'; if (!state.connected) { cls += ' err'; } else { var m = state.dotMode || 'off'; if (m === 'busy' || m === 'ok-busy') cls += ' busy'; else if (m === 'error') cls += ' error'; else if (m === 'stopped') cls += ' stopped'; else if (m === 'ok') cls += ' ok'; else cls += ' off'; } el.dot.className = cls; },
- setStartEnabled: function (b) { if (el.start) el.start.disabled = !b; }, setStats: function (ws, memN, skillN) { if (!el.stats) return; el.stats.textContent = 'WS: ' + (ws || '?') + ' mem: ' + (memN || 0) + ' skills: ' + (skillN || 0); }, setMetrics: function (m) { if (!el.metrics) return; if (!m) { el.metrics.textContent = 'metrics: —'; return; } state.lastMetrics = m; var __pct = 0; if (state.accLimit > 0) __pct = Math.round((m.accum || 0) * 100 / state.accLimit); var __cls = 'dshmem-acc-ok'; if (__pct > 100) __cls = 'dshmem-acc-crit'; else if (__pct >= 80) __cls = 'dshmem-acc-err'; else if (__pct >= 40) __cls = 'dshmem-acc-warn'; el.metrics.className = 'dshmem-stats ' + __cls; el.metrics.textContent = 'acc: ' + m.accum + ' · turn: ' + m.delta + ' · msg: ' + m.chars + 'ch (~' + m.est_tok + 't) ctx ' + (m.ctx_tok || 0) + 't ' + (m.ctx_pct || 0) + 'pct'; },
+ setStartEnabled: function (b) { if (el.toggle) el.toggle.disabled = !b; }, setStats: function (ws, memN, skillN) { if (!el.stats) return; el.stats.textContent = 'WS: ' + (ws || '?') + ' mem: ' + (memN || 0) + ' skills: ' + (skillN || 0); }, setMetrics: function (m) { if (!el.metrics) return; if (!m) { el.metrics.textContent = 'metrics: —'; return; } state.lastMetrics = m; var __pct = 0; if (state.accLimit > 0) __pct = Math.round((m.accum || 0) * 100 / state.accLimit); var __cls = 'dshmem-acc-ok'; if (__pct > 100) __cls = 'dshmem-acc-crit'; else if (__pct >= 80) __cls = 'dshmem-acc-err'; else if (__pct >= 40) __cls = 'dshmem-acc-warn'; el.metrics.className = 'dshmem-stats ' + __cls; el.metrics.textContent = 'acc: ' + m.accum + ' · turn: ' + m.delta + ' · msg: ' + m.chars + 'ch (~' + m.est_tok + 't) ctx ' + (m.ctx_tok || 0) + 't ' + (m.ctx_pct || 0) + 'pct'; },
  toggleForceInject: function () {
   state.forceInject = !state.forceInject;
   try { chrome.storage.local.set({ 'dshmem-force-inject': state.forceInject }) } catch (e) { }