diff --git a/App.tsx b/App.tsx
index 8a44fce..74ae71f 100644
--- a/App.tsx
+++ b/App.tsx
@@ -857,7 +857,12 @@ export default function App() {
     if (!result.canceled && result.assets && result.assets.length > 0) {
       const asset = result.assets[0];
       setLibraryImageUri(asset.uri);
+      // A new photo starts level: the previous photo's turn, fine straighten
+      // and AUTO horizon must not carry over.
       setPhotoRotation(0);
+      setPhotoStraighten(0);
+      setAutoHorizon(false);
+      setHorizonRoll(0);
       setMode('library');
       // Picking from the camera is the other half of that switch (the camera
       // button is the way back), so the camera's edits must not land on the
diff --git a/src/components/AdjustmentPanel.tsx b/src/components/AdjustmentPanel.tsx
index c747d24..7c82278 100644
--- a/src/components/AdjustmentPanel.tsx
+++ b/src/components/AdjustmentPanel.tsx
@@ -279,6 +279,14 @@ export default function AdjustmentPanel({
     if (!cropEnabled) setOpenGroup((g) => (g === 'crop' ? null : g));
   }, [cropEnabled]);
 
+  // The strip a slider row was opened from: the "<" back button returns to it
+  // (STRAIGHTEN lives in ROTATE, COLOR TEMP in TEMP). Params without a parent
+  // strip just close the row.
+  const PARAM_GROUP: Partial<Record<string, GroupKey>> = {
+    straighten: 'rotate',
+    temperature: 'temp',
+  };
+
   const toggleParam = (key: string) => {
     haptic();
     // One auxiliary row at a time: opening a slider closes any option strip.
@@ -385,7 +393,12 @@ export default function AdjustmentPanel({
     label: resetDirty ? 'RESET *' : 'RESET',
     active: false,
     amberValue: resetDirty,
-    onPress: onResetAll,
+    onPress: () => {
+      // RESET is a parameter switch too: drop any open row/strip with it.
+      setOpenGroup(null);
+      if (openParam) onOpenParamChange(null);
+      onResetAll();
+    },
   });
 
   const choiceChips = (
@@ -593,6 +606,10 @@ export default function AdjustmentPanel({
         } else if (v === 'straighten') {
           toggleParam('straighten');
         } else if (v === 'auto') {
+          // AUTO is "snap to the sensor horizon": the manual angle is dropped
+          // first, so enabling it with a hand-set offset really levels the
+          // photo (re-tapping with it on still switches it back off).
+          if (!autoHorizon) onStraighten(0);
           onAutoHorizon(!autoHorizon);
         } else {
           onPickRotation(Number(v) as 0 | 90 | 180 | 270);
@@ -843,7 +860,12 @@ export default function AdjustmentPanel({
               'fr',
               FRAMES.map((f) => ({ v: f.id, d: f.name.toUpperCase() })),
               selectedFrame,
-              (val) => onUpdateFrame(val as FrameId)
+              (val) => {
+                // Picking another frame is another parameter: the open slider
+                // row (STRAIGHTEN) goes with the previous one.
+                if (openParam) onOpenParamChange(null);
+                onUpdateFrame(val as FrameId);
+              }
             )}
             {cropEnabled && renderChip(groupChip('crop'))}
             {renderChip(rotateChip())}
@@ -874,7 +896,12 @@ export default function AdjustmentPanel({
           className="flex-row items-center border-b border-zinc-800/60 px-3 py-1.5"
         >
           <TouchableOpacity
-            onPress={() => toggleParam(openParamDef.key)}
+            onPress={() => {
+              // Back: close the row and bring back the strip it came from.
+              toggleParam(openParamDef.key);
+              const g = PARAM_GROUP[openParamDef.key];
+              if (g) setOpenGroup(g);
+            }}
             className="mr-3 rounded-full border border-zinc-700 bg-titan px-3 py-2"
             activeOpacity={0.7}
           >