diff --git a/modules/prodcom-transcript/client.js b/modules/prodcom-transcript/client.js
index f81590d..255f97f 100644
--- a/modules/prodcom-transcript/client.js
+++ b/modules/prodcom-transcript/client.js
@@ -296,11 +296,17 @@ export default function create({ root, moduleApi }) {
       const text = document.createElement('span');
       text.className = 'text';
 
+      // channel name with its timestamp to the right; the clock button
+      // only toggles the timestamp's visibility
+      const chLine = document.createElement('span');
+      chLine.className = 'channel-line';
+      chLine.append(ch, time);
+
       const body = document.createElement('div');
       body.className = 'body';
-      body.append(ch, text);
+      body.append(chLine, text);
 
-      el.append(time, avatar, body);
+      el.append(avatar, body);
       entryEls.set(id, el);
       applyFilter(el);
       entriesEl.appendChild(el);
diff --git a/modules/prodcom-transcript/style.css b/modules/prodcom-transcript/style.css
index 4b84fad..58e2358 100644
--- a/modules/prodcom-transcript/style.css
+++ b/modules/prodcom-transcript/style.css
@@ -82,15 +82,24 @@
   to   { opacity: 1; transform: none; }
 }
 
+[data-module="prodcom-transcript"] .channel-line {
+  display: flex;
+  align-items: baseline;
+  gap: 8px;
+  margin-bottom: 4px;
+  min-width: 0;
+}
+
+/* timestamp sits to the right of the channel name; the clock button only
+   toggles its visibility */
 [data-module="prodcom-transcript"] .pt-entry .time {
   display: none;
   color: var(--muted);
   font-size: 0.72em;
   font-variant-numeric: tabular-nums;
   flex: none;
-  padding-top: 3px;
 }
-[data-module="prodcom-transcript"] .show-times .pt-entry .time { display: block; }
+[data-module="prodcom-transcript"] .show-times .pt-entry .time { display: inline; }
 
 [data-module="prodcom-transcript"] .pt-entry .avatar {
   flex: none;
@@ -114,7 +123,9 @@
   letter-spacing: 0.01em;
   line-height: 1;
   white-space: nowrap;
-  margin-bottom: 4px;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  min-width: 0;
 }
 
 [data-module="prodcom-transcript"] .pt-entry .text {
diff --git a/public/index.html b/public/index.html
index 71abe71..eab549b 100644
--- a/public/index.html
+++ b/public/index.html
@@ -19,6 +19,13 @@
 
     <span class="spacer"></span>
 
+    <button class="tb-btn icon" id="fs-btn" title="Fullscreen — auto-fits the layout to the screen" aria-label="Fullscreen">
+      <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true">
+        <path d="M4 9V5a1 1 0 0 1 1-1h4"/><path d="M20 9V5a1 1 0 0 0-1-1h-4"/>
+        <path d="M4 15v4a1 1 0 0 0 1 1h4"/><path d="M20 15v4a1 1 0 0 1-1 1h-4"/>
+      </svg>
+    </button>
+
     <div class="dropdown" id="add-dd">
       <button class="tb-btn icon" id="add-btn" title="Add a module tile" aria-label="Add tile">＋</button>
       <div class="menu" id="add-menu" hidden></div>
@@ -43,6 +50,8 @@
     </a>
   </header>
 
+  <button id="topbar-notch" title="Hide / show the menu bar" aria-label="Hide or show the menu bar"></button>
+
   <main id="gridwrap">
     <div id="grid">
       <div id="empty-state">No tiles yet — use “＋ Add tile” to build this dashboard.<br>
diff --git a/public/shell.js b/public/shell.js
index 9e0785f..d0d10bd 100644
--- a/public/shell.js
+++ b/public/shell.js
@@ -273,6 +273,10 @@ function buildTile(tile) {
   resize.className = 'tile-resize';
   resize.title = 'Drag to resize';
 
+  const resizeLeft = document.createElement('div');
+  resizeLeft.className = 'tile-resize-left';
+  resizeLeft.title = 'Drag to resize';
+
   // notch on the title bar's bottom edge: hides/shows the bar
   const notch = document.createElement('button');
   notch.className = 'tile-notch';
@@ -284,7 +288,7 @@ function buildTile(tile) {
     saveLayout();
   });
 
-  el.append(head, body, resize, notch);
+  el.append(head, body, resize, resizeLeft, notch);
   el.classList.toggle('head-hidden', Boolean(tile.headHidden));
   grid.appendChild(el);
 
@@ -293,7 +297,8 @@ function buildTile(tile) {
   applyRect(tile);
 
   wireDrag(tile, el, head);
-  wireResize(tile, el, resize);
+  wireResize(tile, el, resize, false);
+  wireResize(tile, el, resizeLeft, true);
 
   mountModule(tile);
   return entry;
@@ -309,6 +314,7 @@ function wireDrag(tile, el, handle) {
   handle.addEventListener('pointerdown', (ev) => {
     if (ev.target.closest('.tile-btn') || ev.target.closest('.tile-menu') || ev.target.closest('.tile-notch')) return;
     if (ev.button !== 0 && ev.pointerType === 'mouse') return;
+    if (document.body.classList.contains('fullscreen')) return;
     ev.preventDefault();
     closeSettingsPopovers();
     handle.setPointerCapture(ev.pointerId);
@@ -356,17 +362,19 @@ function wireDrag(tile, el, handle) {
   });
 }
 
-/* ── drag to resize ─────────────────────────────────────────────────── */
+/* ── drag to resize (bottom-right and bottom-left corners) ──────────── */
 
-function wireResize(tile, el, handle) {
+function wireResize(tile, el, handle, fromLeft) {
   handle.addEventListener('pointerdown', (ev) => {
     if (ev.button !== 0 && ev.pointerType === 'mouse') return;
+    if (document.body.classList.contains('fullscreen')) return;
     ev.preventDefault();
     ev.stopPropagation();
     handle.setPointerCapture(ev.pointerId);
     const m = cellMetrics();
     const sx = ev.clientX;
     const sy = ev.clientY;
+    const startX = tile.x;
     const startW = tile.w;
     const startH = tile.h;
     const min = minSizeOf(tile);
@@ -377,13 +385,26 @@ function wireResize(tile, el, handle) {
     const onMove = (e) => {
       const dCols = Math.round((e.clientX - sx) / (m.cw + m.gap));
       const dRows = Math.round((e.clientY - sy) / (m.ch + m.gap));
-      const cand = {
-        x: tile.x,
-        y: tile.y,
-        w: Math.max(min.w, Math.min(COLS - tile.x, startW + dCols)),
-        h: Math.max(min.h, startH + dRows),
-      };
-      if ((cand.w !== tile.w || cand.h !== tile.h) && isFree(cand, tile.id)) {
+      let cand;
+      if (fromLeft) {
+        // the left edge moves; the right edge stays put
+        const newX = Math.max(0, Math.min(startX + startW - min.w, startX + dCols));
+        cand = {
+          x: newX,
+          y: tile.y,
+          w: startX + startW - newX,
+          h: Math.max(min.h, startH + dRows),
+        };
+      } else {
+        cand = {
+          x: tile.x,
+          y: tile.y,
+          w: Math.max(min.w, Math.min(COLS - tile.x, startW + dCols)),
+          h: Math.max(min.h, startH + dRows),
+        };
+      }
+      if ((cand.x !== tile.x || cand.w !== tile.w || cand.h !== tile.h) && isFree(cand, tile.id)) {
+        tile.x = cand.x;
         tile.w = cand.w;
         tile.h = cand.h;
         applyRect(tile);
@@ -452,6 +473,7 @@ function buildDivider(L, R, top, bottom) {
 
   el.addEventListener('pointerdown', (ev) => {
     if (ev.button !== 0 && ev.pointerType === 'mouse') return;
+    if (document.body.classList.contains('fullscreen')) return;
     ev.preventDefault();
     closeSettingsPopovers();
     el.setPointerCapture(ev.pointerId);
@@ -915,6 +937,7 @@ function renderLayout(list) {
   for (const tile of tiles) buildTile(tile);
   refreshEmptyState();
   rebuildDividers();
+  if (document.body.classList.contains('fullscreen')) applyFullscreenFit();
 }
 
 /* ── menus ──────────────────────────────────────────────────────────── */
@@ -1026,6 +1049,140 @@ wireDropdown('layout-btn', 'layout-menu', async (menu) => {
   }, { danger: true, sub: 'Remove every tile from this browser' }));
 });
 
+/* ── menu bar show/hide (notch, like the tile title bars) ───────────── */
+
+const topbar = document.getElementById('topbar');
+const topbarNotch = document.getElementById('topbar-notch');
+const LS_MENU = 'proddash:menuHidden';
+
+/** Keep the notch glued to the menubar's bottom edge, whatever its height. */
+const topbarSizer = new ResizeObserver(() => {
+  document.documentElement.style.setProperty('--topbar-h', topbar.offsetHeight + 'px');
+});
+topbarSizer.observe(topbar);
+
+function setMenuHidden(hidden, { persist = true } = {}) {
+  document.body.classList.toggle('menu-hidden', hidden);
+  if (persist) {
+    try { localStorage.setItem(LS_MENU, hidden ? '1' : '0'); } catch { /* fine */ }
+  }
+}
+
+topbarNotch.addEventListener('click', () => {
+  setMenuHidden(!document.body.classList.contains('menu-hidden'));
+});
+
+try {
+  if (localStorage.getItem(LS_MENU) === '1') setMenuHidden(true, { persist: false });
+} catch { /* fine */ }
+
+/* ── fullscreen: auto-fit the layout to the screen ──────────────────── */
+
+/* Fullscreen is a viewing mode. The occupied columns stretch proportionally
+   to the full width; tiles whose bottom edge lands near the bottom of the
+   viewport are stretched to end exactly at it; when nothing extends below
+   the viewport, scrolling is disabled. All of it is visual-only — the saved
+   layout is untouched and everything reverts on exit. */
+
+const fsBtn = document.getElementById('fs-btn');
+/** Rows this close to the viewport bottom count as "near" and get stretched. */
+const FS_NEAR_ROWS = 2;
+let menuHiddenBeforeFs = false;
+
+function fsSmallExempt(tile) {
+  // A small tile (like the clock) alone in its columns must not become a
+  // full-height ribbon.
+  if (tile.h > 2) return false;
+  return !tiles.some((t) => t !== tile && t.x < tile.x + tile.w && tile.x < t.x + t.w);
+}
+
+function fsBottomMost(tile) {
+  return !tiles.some((t) => t !== tile
+    && t.x < tile.x + tile.w && tile.x < t.x + t.w
+    && t.y >= tile.y + tile.h);
+}
+
+function applyFullscreenFit() {
+  if (!document.body.classList.contains('fullscreen') || !tiles.length) return;
+  const m = cellMetrics();
+  const baseCellH = parseFloat(getComputedStyle(document.documentElement).getPropertyValue('--cell-h')) || 72;
+  const wrapH = gridwrap.clientHeight;
+  const maxCol = Math.max(1, ...tiles.map((t) => t.x + t.w));
+  const maxRow = Math.max(1, ...tiles.map((t) => t.y + t.h));
+
+  // x: the occupied columns stretch proportionally across the full width
+  grid.style.gridTemplateColumns = `repeat(${maxCol}, minmax(0, 1fr))`;
+
+  const layoutH = maxRow * (baseCellH + m.gap) - m.gap;
+  if (layoutH > wrapH) {
+    // deeper than the screen: keep natural rows and scrolling
+    grid.style.gridAutoRows = '';
+    gridwrap.classList.remove('no-scroll');
+    for (const tile of tiles) applyRect(tile);
+    return;
+  }
+
+  // nothing below the fold: lock scrolling and make R rows fill the height exactly
+  gridwrap.classList.add('no-scroll');
+  const R = Math.max(maxRow, Math.floor((wrapH + m.gap) / (baseCellH + m.gap)));
+  const cellH = (wrapH - (R - 1) * m.gap) / R;
+  grid.style.gridAutoRows = cellH + 'px';
+
+  for (const tile of tiles) {
+    applyRect(tile); // reset any previous stretch first
+    const bottom = tile.y + tile.h;
+    if (R - bottom <= FS_NEAR_ROWS && fsBottomMost(tile) && !fsSmallExempt(tile)) {
+      const entry = tileEls.get(tile.id);
+      if (entry) {
+        entry.el.style.gridRow = `${tile.y + 1} / span ${R - tile.y}`;
+        try { entry.instance?.onResize?.(tile.w, R - tile.y); } catch { /* module's problem */ }
+      }
+    }
+  }
+}
+
+function clearFullscreenFit() {
+  grid.style.gridTemplateColumns = '';
+  grid.style.gridAutoRows = '';
+  gridwrap.classList.remove('no-scroll');
+  for (const tile of tiles) {
+    applyRect(tile);
+    notifyResize(tile);
+  }
+}
+
+fsBtn.addEventListener('click', () => {
+  if (!document.fullscreenElement) {
+    document.documentElement.requestFullscreen?.().catch(() => {});
+  } else {
+    document.exitFullscreen?.().catch(() => {});
+  }
+});
+
+document.addEventListener('fullscreenchange', () => {
+  const active = Boolean(document.fullscreenElement);
+  document.body.classList.toggle('fullscreen', active);
+  if (active) {
+    closeSettingsPopovers();
+    menuHiddenBeforeFs = document.body.classList.contains('menu-hidden');
+    setMenuHidden(true, { persist: false }); // the menu auto-hides; its notch brings it back
+    // let the collapsed menubar's space settle before measuring
+    requestAnimationFrame(() => requestAnimationFrame(applyFullscreenFit));
+  } else {
+    setMenuHidden(menuHiddenBeforeFs, { persist: false });
+    clearFullscreenFit();
+  }
+});
+
+window.addEventListener('resize', () => {
+  if (document.body.classList.contains('fullscreen')) applyFullscreenFit();
+});
+
+// the menubar collapse animates, so the grid's final height arrives late
+topbar.addEventListener('transitionend', () => {
+  if (document.body.classList.contains('fullscreen')) applyFullscreenFit();
+});
+
 /* ── live updates from the admin page ───────────────────────────────── */
 
 /* The server broadcasts `modules-changed` on /api/events whenever admin
diff --git a/public/style.css b/public/style.css
index 0cca1cf..f435d9c 100644
--- a/public/style.css
+++ b/public/style.css
@@ -39,12 +39,50 @@ button { font-family: inherit; }
   display: flex;
   align-items: center;
   gap: 10px;
-  padding: 8px 12px;
+  height: 46px;
+  padding: 0 12px;
   background: var(--panel);
   border-bottom: 1px solid var(--border);
   user-select: none;
   -webkit-user-select: none;
+  transition: height 0.22s ease, border-bottom-width 0.22s ease;
 }
+/* collapsed by its notch (and automatically in fullscreen) */
+body.menu-hidden #topbar {
+  height: 0;
+  border-bottom-width: 0;
+  overflow: hidden;
+}
+
+/* the menubar's own show/hide tab, same as the tile notches */
+#topbar-notch {
+  position: fixed;
+  top: var(--topbar-h, 46px);
+  left: 50%;
+  transform: translateX(-50%);
+  width: 54px;
+  height: 14px;
+  padding: 0;
+  background: var(--panel);
+  border: 1px solid var(--border);
+  border-top: none;
+  border-radius: 0 0 10px 10px;
+  cursor: pointer;
+  z-index: 60;
+  opacity: 0.35;
+  transition: opacity 0.15s ease, top 0.22s ease;
+}
+#topbar-notch:hover { opacity: 1; }
+#topbar-notch::after {
+  content: "";
+  display: block;
+  width: 20px;
+  height: 3px;
+  margin: 4px auto 0;
+  border-radius: 999px;
+  background: var(--muted);
+}
+#topbar-notch:hover::after { background: var(--text); }
 
 #brand {
   font-weight: 800;
@@ -207,9 +245,15 @@ button { font-family: inherit; }
   user-select: none;
   -webkit-user-select: none;
   touch-action: none;
+  transition: height 0.22s ease, border-bottom-width 0.22s ease;
 }
 .tile.dragging .tile-head { cursor: grabbing; }
-.tile.head-hidden .tile-head { display: none; }
+/* hidden = collapsed, not removed, so the notch toggle animates */
+.tile.head-hidden .tile-head {
+  height: 0;
+  border-bottom-width: 0;
+  overflow: hidden;
+}
 
 .tile-head .dot {
   flex: none;
@@ -305,7 +349,7 @@ button { font-family: inherit; }
   cursor: pointer;
   z-index: 6;
   opacity: 0;
-  transition: opacity 0.15s ease, top 0.15s ease;
+  transition: opacity 0.15s ease, top 0.22s ease;
 }
 .tile:hover .tile-notch { opacity: 0.6; }
 .tile .tile-notch:hover { opacity: 1; }
@@ -329,30 +373,43 @@ button { font-family: inherit; }
   overflow: hidden;
 }
 
-.tile-resize {
+.tile-resize,
+.tile-resize-left {
   position: absolute;
-  right: 0;
   bottom: 0;
   width: 20px;
   height: 20px;
-  cursor: nwse-resize;
   touch-action: none;
   z-index: 5;
   color: var(--muted);
-  opacity: 0.6;
+  opacity: 0; /* corner indicators only show while hovering the tile */
+  transition: opacity 0.15s ease;
 }
-.tile-resize:hover { opacity: 1; color: var(--text); }
-.tile-resize::after {
+.tile-resize { right: 0; cursor: nwse-resize; }
+.tile-resize-left { left: 0; cursor: nesw-resize; }
+.tile:hover .tile-resize,
+.tile:hover .tile-resize-left { opacity: 0.6; }
+.tile .tile-resize:hover,
+.tile .tile-resize-left:hover { opacity: 1; color: var(--text); }
+.tile-resize::after,
+.tile-resize-left::after {
   content: "";
   position: absolute;
-  right: 4px;
   bottom: 4px;
   width: 9px;
   height: 9px;
-  border-right: 2px solid currentColor;
   border-bottom: 2px solid currentColor;
+}
+.tile-resize::after {
+  right: 4px;
+  border-right: 2px solid currentColor;
   border-radius: 0 0 3px 0;
 }
+.tile-resize-left::after {
+  left: 4px;
+  border-left: 2px solid currentColor;
+  border-radius: 0 0 0 3px;
+}
 
 /* ── seam divider between adjacent tiles ───────────────────────────── */
 
@@ -389,6 +446,16 @@ button { font-family: inherit; }
    they're rebuilt for the new geometry on release. */
 #grid.no-dividers .tile-divider { display: none; }
 
+/* ── fullscreen mode ───────────────────────────────────────────────── */
+
+/* Fullscreen is a viewing mode: the layout auto-fits the screen, so the
+   editing affordances (corner handles, seam pills) are parked. */
+body.fullscreen .tile-resize,
+body.fullscreen .tile-resize-left,
+body.fullscreen .tile-divider { display: none; }
+body.fullscreen #grid { padding-bottom: 0; }
+#gridwrap.no-scroll { overflow-y: hidden; }
+
 /* status message a module can show while degraded (also used by the shell
    when a module fails to load) */
 .tile-msg {
@@ -544,5 +611,5 @@ button { font-family: inherit; }
 }
 
 @media (max-width: 560px) {
-  #topbar { padding: 6px 8px; flex-wrap: wrap; }
+  #topbar { padding: 0 8px; gap: 6px; }
 }