diff --git a/assets/layout.html b/assets/layout.html
index b6ae07f..0ddc87e 100644
--- a/assets/layout.html
+++ b/assets/layout.html
@@ -48,7 +48,7 @@
                     </span>
                 </footer>
             </div>
-            {{if not .EditMode}}<aside class="sidebar">{{block "sidebar" .}}{{end}}</aside>{{end}}
+            {{if not .EditMode}}{{block "aside" .}}{{end}}{{end}}
         </div>
         {{block "extras" .}}{{end}}
     </body>
diff --git a/assets/overlay.js b/assets/overlay.js
index e9de619..137ca14 100644
--- a/assets/overlay.js
+++ b/assets/overlay.js
@@ -1,8 +1,6 @@
 // Full-viewport Overlay component (mobile). Distinct from the .modal dialog:
-// this hosts a whole rail (the folder tree or the right-rail widgets/TOC) at
-// full screen with its own scroll and a top-right close control. It reuses the
-// low-level focus/Escape/bfcache patterns from modal.js rather than that
-// component's panel chrome.
+// this hosts a whole sidebar at full screen with its own scroll and a top-right close control.
+// It reuses the low-level focus/Escape/bfcache patterns from modal.js rather than that component's panel chrome.
 //
 // openOverlay(node) MOVES `node` (an existing rail <aside>) into the overlay
 // body and restores it to its original DOM position on close, so the rail keeps
diff --git a/assets/page/main.html b/assets/page/main.html
index 9fcf316..6d346c0 100644
--- a/assets/page/main.html
+++ b/assets/page/main.html
@@ -66,4 +66,4 @@
 <script src="/_/page/sidebar-fab.js"></script>
 {{end}}
 
-{{define "sidebar"}}{{if .SidebarWidget}}{{.SidebarWidget}}{{end}}{{end}}
+{{define "aside"}}{{if .SidebarWidget}}<aside class="sidebar">{{.SidebarWidget}}</aside>{{end}}{{end}}
diff --git a/assets/page/sidebar-fab.js b/assets/page/sidebar-fab.js
index 79d06fe..93541ab 100644
--- a/assets/page/sidebar-fab.js
+++ b/assets/page/sidebar-fab.js
@@ -1,8 +1,3 @@
-// Mobile: the right-rail FAB is stacked ABOVE the tree FAB and opens the right
-// rail (TOC + page widgets) in the full-viewport Overlay (overlay.js). It only
-// appears when the rail actually has content — runs after toc.js has had a
-// chance to populate the rail (script order in page/main.html), so an
-// otherwise-empty rail shows no FAB. Hidden on desktop by .fab CSS.
 document.addEventListener("DOMContentLoaded", function () {
   var aside = document.querySelector("aside.sidebar");
   if (!aside || !aside.children.length) return;
diff --git a/assets/page/toc.js b/assets/page/toc.js
index b44ce44..91b4d4c 100644
--- a/assets/page/toc.js
+++ b/assets/page/toc.js
@@ -6,7 +6,7 @@ document.addEventListener("DOMContentLoaded", function () {
   if (headings.length < 2) return;
 
   var nav = document.createElement("nav");
-  nav.className = "toc panel panel-sidebar";
+  nav.className = "toc panel";
 
   var header = document.createElement("div");
   header.className = "panel-header";
@@ -28,7 +28,5 @@ document.addEventListener("DOMContentLoaded", function () {
   });
   nav.appendChild(list);
 
-  // Stack the TOC on top of any server-rendered widget(s) already in the rail.
-  var rail = document.querySelector("aside.sidebar");
-  rail.insertBefore(nav, rail.firstChild);
+  content.insertBefore(nav, content.firstChild);
 });
diff --git a/assets/style.css b/assets/style.css
index f5e2757..b46e5c4 100644
--- a/assets/style.css
+++ b/assets/style.css
@@ -597,12 +597,7 @@ button.fab { display: none; }
 ::-webkit-scrollbar-thumb { background: var(--primary); }
 ::-webkit-scrollbar-thumb:hover { background: var(--primary-hover); }
 
-/* === Sidebar (right rail) ===
-   Full-height column in the app-shell that scrolls its own overflow (TOC on
-   top, page widget(s) below). Collapses out of the flex row when it has no
-   content so the center column widens. A dashed separator to main mirrors the
-   left tree rail; widgets within drop their panel outlines (see
-   .panel-sidebar). */
+/* === Optional Sidebar (right side) === */
 .sidebar {
     width: 14rem;
     flex-shrink: 0;
@@ -614,21 +609,23 @@ button.fab { display: none; }
     border-left: var(--border-dashed);
 }
 aside.sidebar:empty { display: none; }
-
-/* Density modifier for panels in the sidebar (smaller font, tighter padding).
-   Drops the .panel outline so the rail reads as a clean column separated from
-   main by the .sidebar dashed border, matching the left tree rail. Inside the
-   mobile Overlay the widgets render as plain full-width content. */
 .panel-sidebar {
     padding: var(--space-2) var(--space-3);
     font-size: var(--font-sm);
     border: none;
 }
 
-/* === Table of contents ===
-   Rendered as a .panel-sidebar block in the right rail (padding + font-size
-   come from that density class); toc.js always mounts it there, on both
-   desktop and inside the mobile Overlay. */
+/* === Table of contents ===*/
+.toc {
+    float: right;
+    width: 15rem;
+    max-width: 45%;
+    margin: 0 0 var(--space-3) var(--space-4);
+    padding: var(--space-2) var(--space-3);
+    font-size: var(--font-sm);
+    max-width: 60vh;
+    overflow-y: auto;
+}
 .toc ul { list-style: none; margin: 0; padding: 0; }
 .toc li { margin: 0.15rem 0; }
 .toc a {
@@ -889,10 +886,6 @@ aside.sidebar:empty { display: none; }
     main { padding: var(--space-4) var(--space-3); }
     .app-name {display: none;}
     .editor-cm { min-height: 50vh; }
-    /* Editing on mobile is full-bleed: drop the main inset so the toolbar and
-       editor use the entire viewport width. */
-    body.edit-mode main { padding: 0; }
-    /* Fingers, not cursors: give every toolbar control a ~44px tap target. */
     .editor-toolbar { gap: var(--space-2); padding: var(--space-2); }
     .editor-toolbar .btn-tool {
         display: inline-flex;
@@ -902,17 +895,10 @@ aside.sidebar:empty { display: none; }
         min-height: 2rem;
         padding: 0 var(--space-1);
     }
-    /* Pin the toolbar above the on-screen keyboard rather than at the top, which
-       is out of thumb reach while typing. interactive-widget=resizes-content
-       (layout.html viewport) shrinks the viewport on keyboard open so bottom: 0
-       sits directly above it. cm-content reserves matching scroll space so the
-       last lines aren't hidden behind the bar. */
     body.edit-mode .editor-toolbar {
         position: fixed;
         left: 0;
         right: 0;
-        /* Reset the desktop sticky `top: 0`; with it, fixed + top + bottom would
-           stretch the bar to the full viewport height. */
         top: auto;
         bottom: 0;
         z-index: 50;
@@ -923,6 +909,7 @@ aside.sidebar:empty { display: none; }
     body.edit-mode .cm-content {
         padding-bottom: calc(5rem + env(safe-area-inset-bottom));
     }
+    body.edit-mode main { padding: 0; }
     .modal-backdrop { padding: var(--space-2); align-items: flex-start; }
     .modal { max-width: none; margin-top: var(--space-4); }
     .modal .panel-header { cursor: default; }
@@ -938,4 +925,5 @@ aside.sidebar:empty { display: none; }
     .list-item td.icon { grid-row: 1; grid-column: 1; }
     .list-item td.name { grid-row: 1; grid-column: 2; }
     .list-item td.meta { grid-row: 2; grid-column: 2; text-align: left; }
+    .toc {float: none; width: auto; max-width: none; margin: 0 0 var(--space-4);}
 }