diff --git a/src/viewer/navigation/minimap.css b/src/viewer/navigation/minimap.css
index 833cc21..7c468ac 100644
--- a/src/viewer/navigation/minimap.css
+++ b/src/viewer/navigation/minimap.css
@@ -320,8 +320,8 @@ html.minimap-disabled body::-webkit-scrollbar-thumb {
 
 .minimap-collapsed .minimap-shell {
   top: auto;
-  /* Fixed-position insets exclude the native scrollbar gutter. */
-  right: calc(100% - 100vw);
+  /* Stay on the layout side of the native scrollbar, not underneath it. */
+  right: 0;
   width: 36px;
   height: 36px;
   min-height: 36px;
@@ -333,6 +333,14 @@ html.minimap-disabled body::-webkit-scrollbar-thumb {
 
 .minimap-collapsed .minimap-controls {
   flex: 1 1 auto;
+  box-sizing: border-box;
+  /* Unlike the expanded strip, the standalone button needs every edge. */
+  border: 1px solid var(--border);
+}
+
+.minimap-collapsed.minimap-left .minimap-shell {
+  right: auto;
+  left: 0;
 }
 
 .minimap-collapsed .minimap-control:not(.minimap-collapse) {
@@ -344,10 +352,10 @@ html.minimap-disabled body::-webkit-scrollbar-thumb {
   flex: 1 1 auto;
 }
 
-/* The bottom-right corner of a split pane may be occupied by host chrome.
-   Raise both expanded and collapsed minimap controls out of that hit area. */
+/* Only the footnote scrubber needs clearance for the split-pane host chrome.
+   In documents without footnotes, anchor the controls at the viewport bottom. */
 @media (max-width: 1200px) {
-  :root {
+  :root:has(#document-scrubber:not([hidden])) {
     --split-view-bottom-clearance: 48px;
   }
 }
diff --git a/tests/minimap.test.mjs b/tests/minimap.test.mjs
index 714e03d..63126d4 100644
--- a/tests/minimap.test.mjs
+++ b/tests/minimap.test.mjs
@@ -458,7 +458,7 @@ test('native scrollbar gutter respects toolbar rows, the scrubber, and split-vie
     styles,
     /:root\s*\{\s*--native-scrollbar-top:\s*52px;\s*--split-view-bottom-clearance:\s*0px;\s*--native-scrollbar-bottom:\s*calc\(var\(--document-scrubber-height, 0px\) \+ var\(--split-view-bottom-clearance\)\);/,
   );
-  assert.match(styles, /@media\s*\(max-width:\s*1200px\)\s*\{\s*:root\s*\{\s*--split-view-bottom-clearance:\s*48px;/);
+  assert.match(styles, /@media\s*\(max-width:\s*1200px\)\s*\{\s*:root:has\(#document-scrubber:not\(\[hidden\]\)\)\s*\{\s*--split-view-bottom-clearance:\s*48px;/);
   assert.match(styles, /:root\.toolbar-two-rows\s*\{\s*--native-scrollbar-top:\s*100px;/);
   assert.match(
     styles,
@@ -472,6 +472,13 @@ test('native scrollbar gutter respects toolbar rows, the scrubber, and split-vie
 });
 
 
+test('collapsed minimap toggle stays outside the native scrollbar and keeps its border', () => {
+  assert.match(styles, /\.minimap-collapsed \.minimap-shell\s*\{[^}]*?right:\s*0;/);
+  assert.doesNotMatch(styles, /right:\s*calc\(100% - 100vw\)/);
+  assert.match(styles, /\.minimap-collapsed \.minimap-controls\s*\{[^}]*?border:\s*1px solid var\(--border\);/);
+  assert.match(styles, /\.minimap-collapsed\.minimap-left \.minimap-shell\s*\{[^}]*?right:\s*auto;[^}]*?left:\s*0;/);
+});
+
 test('minimap has a dedicated collapse button without a duplicate settings toggle', () => {
   const f = fixture(3);
   assert.doesNotMatch(viewerMarkup, /id="show-minimap"/);