diff --git a/packages/bruno-app/src/components/CodeEditor/index.js b/packages/bruno-app/src/components/CodeEditor/index.js
index 9a269c314..129260021 100644
--- a/packages/bruno-app/src/components/CodeEditor/index.js
+++ b/packages/bruno-app/src/components/CodeEditor/index.js
@@ -84,8 +84,8 @@ export default class CodeEditor extends React.Component {
             this.searchBarRef.current?.focus();
           });
         },
-        'Cmd-H': 'replace',
-        'Ctrl-H': 'replace',
+        'Cmd-H': this.props.readOnly ? false : 'replace',
+        'Ctrl-H': this.props.readOnly ? false : 'replace',
         'Tab': function (cm) {
           cm.getSelection().includes('\n') || editor.getLine(cm.getCursor().line) == cm.getSelection()
             ? cm.execCommand('indentMore')
diff --git a/packages/bruno-app/src/components/Preferences/Keybindings/StyledWrapper.js b/packages/bruno-app/src/components/Preferences/Keybindings/StyledWrapper.js
index f09b1e465..ff4b93c09 100644
--- a/packages/bruno-app/src/components/Preferences/Keybindings/StyledWrapper.js
+++ b/packages/bruno-app/src/components/Preferences/Keybindings/StyledWrapper.js
@@ -39,7 +39,6 @@ const StyledWrapper = styled.div`
   .section-divider {
     height: 1px;
     background: ${(props) => props.theme.input.border};
-    margin: 10px 0;
   }
 
   .tables-container {
@@ -75,7 +74,7 @@ const StyledWrapper = styled.div`
 
   thead {
     color: ${(props) => props.theme.table.thead.color} !important;
-    background: ${(props) => props.theme.sidebar.bg};
+    background: ${(props) => props.theme.table.striped};
     user-select: none;
 
     td {
@@ -100,9 +99,8 @@ const StyledWrapper = styled.div`
     tr {
       transition: background 0.1s ease;
       height: 30px;
-
       td {
-        padding: 0 10px !important;
+        padding: 0px 10px !important;
         border: none !important;
         vertical-align: middle;
         background: transparent;
@@ -111,7 +109,7 @@ const StyledWrapper = styled.div`
     }
 
     tr:hover:not(.row-editing) td {
-      background: ${(props) => props.theme.sidebar.bg};
+      background: ${(props) => props.theme.background.surface0};
       cursor: pointer;
     }
 
@@ -120,7 +118,7 @@ const StyledWrapper = styled.div`
     }
 
     tr.section-heading-row td {
-      font-weight: 600;
+      font-weight: 700;
       padding: 6px 10px !important;
       user-select: none;
     }
@@ -131,8 +129,28 @@ const StyledWrapper = styled.div`
     }
 
     tr.section-last-row td {
+      border-bottom: none !important;
+    }
+
+    tr.section-spacer-row {
+      height: 8px;
+      pointer-events: none;
+    }
+
+    tr.section-spacer-row td {
+      padding: 0 !important;
+      height: 8px;
+      line-height: 8px;
+      font-size: 0;
+      background: transparent !important;
+      border: none !important;
       border-bottom: solid 1px ${(props) => props.theme.border.border0} !important;
     }
+
+    tr.section-spacer-row:hover td {
+      background: transparent !important;
+      cursor: default;
+    }
   }
 
   .keybinding-row {
@@ -180,7 +198,7 @@ const StyledWrapper = styled.div`
   }
 
   .shortcut-input--editing {
-    outline: 1px solid #E4AE49;
+    outline: 1px solid ${(props) => props.theme.status.warning.border};
     border-radius: 4px;
     min-width: 100%;
     max-width: 100%;
@@ -189,7 +207,7 @@ const StyledWrapper = styled.div`
   }
 
   .shortcut-input--error.shortcut-input--editing {
-    outline: 1px solid #CE4F3B;
+    outline: 1px solid ${(props) => props.theme.status.danger.border};
     min-width: 100%;
     max-width: 100%;
   }
@@ -220,39 +238,41 @@ const StyledWrapper = styled.div`
     align-items: center;
     justify-content: center;
     min-width: 20px;
-    height: 22px;
+    height: 20px;
     padding: 2px;
     border-radius: 3px;
     border: 1px solid ${(props) => props.theme.input.border};
     background: ${(props) => props.theme.background.base};
     color: ${(props) => props.theme.table.input.color};
-    font-size: 12px;
+    font-size: 10px;
     font-weight: 500;
     line-height: 1;
   }
 
-  tbody tr.row-success td {
-    background: #2E8A540F;
+  tbody tr.row-success td,
+  tbody tr.row-success:hover td {
+    background: ${(props) => props.theme.status.success.background} !important;
   }
 
-  tbody tr.row-error td {
-    background: #D32F2F0F;
+  tbody tr.row-error td,
+  tbody tr.row-error:hover td {
+    background: ${(props) => props.theme.status.danger.background} !important;
   }
 
   .success-icon {
-    color: #2E8A54;
+    color: ${(props) => props.theme.status.success.text};
     display: inline-flex;
     align-items: center;
   }
 
   .error-icon {
-    color: #CE4F3B;
+    color: ${(props) => props.theme.status.danger.text};
     display: inline-flex;
     align-items: center;
   }
 
   .input-error-icon {
-    color: #CE4F3B;
+    color: ${(props) => props.theme.status.danger.text};
     display: inline-flex;
     align-items: center;
     margin-left: auto;
@@ -294,6 +314,11 @@ const StyledWrapper = styled.div`
     border-radius: 6px;
     padding: 0px 6px;
     cursor: pointer;
+
+    &:disabled {
+      opacity: 0.45;
+      cursor: not-allowed;
+    }
   }
 
   .action-btn {
diff --git a/packages/bruno-app/src/components/Preferences/Keybindings/index.js b/packages/bruno-app/src/components/Preferences/Keybindings/index.js
index e3863fb8b..4e2153056 100644
--- a/packages/bruno-app/src/components/Preferences/Keybindings/index.js
+++ b/packages/bruno-app/src/components/Preferences/Keybindings/index.js
@@ -1,4 +1,4 @@
-import React, { useMemo, useRef, useState, useEffect } from 'react';
+import React, { useMemo, useRef, useState, useEffect, Fragment } from 'react';
 import { useDispatch, useSelector } from 'react-redux';
 import { useTheme } from 'providers/Theme';
 
@@ -10,6 +10,7 @@ import { savePreferences } from 'providers/ReduxStore/slices/app';
 import { KEY_BINDING_SECTIONS } from 'providers/Hotkeys/keyMappings.js';
 import { Tooltip } from 'react-tooltip';
 import ToggleSwitch from 'components/ToggleSwitch/index';
+import toast from 'react-hot-toast';
 
 const SEP = '+bind+';
 const getOS = () => (isMacOS() ? 'mac' : 'windows');
@@ -82,10 +83,10 @@ const renderDisplayValue = (displayValue, os) => {
   return (
     <span className="shortcut-pills">
       {parsed.map((keysArr, index) => (
-        <React.Fragment key={index}>
+        <Fragment key={index}>
           {index > 0 && <span className="shortcut-separator"> - </span>}
           {renderKeycaps(keysArr, os)}
-        </React.Fragment>
+        </Fragment>
       ))}
     </span>
   );
@@ -218,23 +219,21 @@ const RESERVED_BY_OS = {
     comboSignature(['f12']) // Dashboard (older macOS)
   ]),
   windows: new Set([
+    // System-level shortcuts (intercepted by Windows before reaching the app)
     comboSignature(['alt', 'tab']),
+    comboSignature(['alt', 'shift', 'tab']),
     comboSignature(['alt', 'f4']),
-    comboSignature(['f1']), // Windows Help
+    comboSignature(['alt', 'esc']),
+    comboSignature(['alt', 'space']),
     comboSignature(['ctrl', 'alt', 'delete']),
-    comboSignature(['command', 'l']),
-    comboSignature(['command', 'd']),
-    comboSignature(['command', 'e']),
-    comboSignature(['command', 'r']),
-    comboSignature(['command', 'i']),
-    comboSignature(['command', 's']),
-    comboSignature(['command', 'a']),
-    comboSignature(['command', 'x']),
-    comboSignature(['command', 'm']),
-    comboSignature(['command', 'tab']),
     comboSignature(['ctrl', 'shift', 'esc']),
+    // Function keys
+    comboSignature(['f1']), // Windows Help
+    comboSignature(['f11']), // Fullscreen toggle
+    comboSignature(['f12']), // DevTools
     // Undo/Redo - standard text editing shortcuts that browsers handle natively
     comboSignature(['ctrl', 'z']),
+    comboSignature(['ctrl', 'y']),
     comboSignature(['ctrl', 'shift', 'z']),
     // Toggle Developer Tools
     comboSignature(['ctrl', 'shift', 'i'])
@@ -493,7 +492,7 @@ const Keybindings = () => {
     if (buildUsedSignatures(action).has(sig)) {
       return {
         code: ERROR.DUPLICATE,
-        message: 'That shortcut is already in use.'
+        message: 'This shortcut is already in use.'
       };
     }
 
@@ -562,9 +561,24 @@ const Keybindings = () => {
       return next;
     });
 
-    persistToPreferences(action, def);
+    // Remove the entry from user preferences entirely so falls back to default.
+    // This also keeps `hasCustomizedKeybindings` accurate.
+    const nextKeyBindings = { ...(preferences?.keyBindings || {}) };
+    delete nextKeyBindings[action];
+
+    const updatedPreferences = {
+      ...preferences,
+      keyBindings: nextKeyBindings
+    };
+
+    dispatch(savePreferences(updatedPreferences));
   };
 
+  const hasCustomizedKeybindings = useMemo(() => {
+    const userKeyBindings = preferences?.keyBindings || {};
+    return Object.keys(userKeyBindings).length > 0;
+  }, [preferences?.keyBindings]);
+
   const resetAllKeybindings = () => {
     const updatedPreferences = {
       ...preferences,
@@ -572,6 +586,7 @@ const Keybindings = () => {
     };
 
     dispatch(savePreferences(updatedPreferences));
+    toast.success('All shortcuts have been reset to default');
   };
 
   const startEditing = (action) => {
@@ -799,6 +814,7 @@ const Keybindings = () => {
             onClick={resetAllKeybindings}
             className="reset-btn"
             data-testid="reset-all-keybindings-btn"
+            disabled={!hasCustomizedKeybindings}
           >
             Reset Default
           </button>
@@ -817,7 +833,7 @@ const Keybindings = () => {
               </thead>
               <tbody>
                 {groupedKeyMappings.map((section, sectionIndex) => (
-                  <React.Fragment key={section.heading}>
+                  <Fragment key={section.heading}>
                     <tr className="section-heading-row">
                       <td colSpan={2}>{section.heading}</td>
                     </tr>
@@ -946,7 +962,12 @@ const Keybindings = () => {
                         </tr>
                       );
                     })}
-                  </React.Fragment>
+                    {sectionIndex < groupedKeyMappings.length - 1 && (
+                      <tr className="section-spacer-row" aria-hidden="true">
+                        <td colSpan={2}>&nbsp;</td>
+                      </tr>
+                    )}
+                  </Fragment>
                 ))}
               </tbody>
             </table>
diff --git a/packages/bruno-app/src/components/RequestPane/QueryEditor/index.js b/packages/bruno-app/src/components/RequestPane/QueryEditor/index.js
index 1a936f5a1..ee16fa1fb 100644
--- a/packages/bruno-app/src/components/RequestPane/QueryEditor/index.js
+++ b/packages/bruno-app/src/components/RequestPane/QueryEditor/index.js
@@ -137,6 +137,12 @@ export default class QueryEditor extends React.Component {
     this.addOverlay();
 
     setupLinkAware(editor);
+
+    // Add mousetrap class so Mousetrap captures shortcuts even when CodeMirror is focused
+    const cmInput = editor.getInputField();
+    if (cmInput) {
+      cmInput.classList.add('mousetrap');
+    }
   }
 
   componentDidUpdate(prevProps) {
diff --git a/packages/bruno-app/src/components/RequestTabs/RequestTab/index.js b/packages/bruno-app/src/components/RequestTabs/RequestTab/index.js
index 10a488875..9d7b5b170 100644
--- a/packages/bruno-app/src/components/RequestTabs/RequestTab/index.js
+++ b/packages/bruno-app/src/components/RequestTabs/RequestTab/index.js
@@ -225,7 +225,11 @@ const RequestTab = ({ tab, collection, tabIndex, collectionRequestTabs, folderUi
     if (tab.type === 'environment-settings') {
       if (collection?.environmentsDraft) {
         const { environmentUid, variables } = collection.environmentsDraft;
-        dispatch(saveEnvironment(variables, environmentUid, collection.uid));
+        if (environmentUid?.startsWith('dotenv:')) {
+          window.dispatchEvent(new Event('dotenv-save'));
+        } else {
+          dispatch(saveEnvironment(variables, environmentUid, collection.uid));
+        }
       }
     } else if (tab.type === 'global-environment-settings') {
       if (globalEnvironmentDraft) {
diff --git a/packages/bruno-app/src/components/Sidebar/NewRequest/index.js b/packages/bruno-app/src/components/Sidebar/NewRequest/index.js
index 4023d801d..f44ac7f1e 100644
--- a/packages/bruno-app/src/components/Sidebar/NewRequest/index.js
+++ b/packages/bruno-app/src/components/Sidebar/NewRequest/index.js
@@ -316,18 +316,6 @@ const NewRequest = ({ collectionUid, item, isEphemeral, onClose }) => {
           <form
             className="bruno-form"
             onSubmit={formik.handleSubmit}
-            onKeyDown={(e) => {
-              if (e.key === 'Enter' && !e.defaultPrevented) {
-                const isTextInput
-                  = ['input', 'textarea'].includes(e.target.tagName.toLowerCase())
-                    || e.target.isContentEditable;
-
-                if (!isTextInput) {
-                  e.preventDefault();
-                  formik.handleSubmit();
-                }
-              }
-            }}
           >
             <div>
               <label htmlFor="requestName" className="block font-medium">
@@ -523,6 +511,7 @@ const NewRequest = ({ collectionUid, item, isEphemeral, onClose }) => {
                       className="flex px-2 items-center flex-grow input-container h-full min-w-0"
                     >
                       <SingleLineEditor
+                        onRun={() => formik.handleSubmit()}
                         onPaste={handlePaste}
                         placeholder="Request URL"
                         value={formik.values.requestUrl || ''}
diff --git a/packages/bruno-app/src/providers/ReduxStore/middlewares/tasks/middleware.js b/packages/bruno-app/src/providers/ReduxStore/middlewares/tasks/middleware.js
index 3d0730e42..90e6c79df 100644
--- a/packages/bruno-app/src/providers/ReduxStore/middlewares/tasks/middleware.js
+++ b/packages/bruno-app/src/providers/ReduxStore/middlewares/tasks/middleware.js
@@ -35,7 +35,8 @@ taskMiddleware.startListening({
                 uid: item.uid,
                 collectionUid: collection.uid,
                 requestPaneTab: getDefaultRequestPaneTab(item),
-                preview: task?.preview ?? true
+                preview: task?.preview ?? true,
+                ...(item.isTransient ? { isTransient: true } : {})
               })
             );
           }
diff --git a/packages/bruno-app/src/providers/ReduxStore/slices/tabs.js b/packages/bruno-app/src/providers/ReduxStore/slices/tabs.js
index 16a65fa9c..77ce9beb9 100644
--- a/packages/bruno-app/src/providers/ReduxStore/slices/tabs.js
+++ b/packages/bruno-app/src/providers/ReduxStore/slices/tabs.js
@@ -22,7 +22,7 @@ export const tabsSlice = createSlice({
   initialState,
   reducers: {
     addTab: (state, action) => {
-      const { uid, collectionUid, type, requestPaneTab, preview, exampleUid, itemUid } = action.payload;
+      const { uid, collectionUid, type, requestPaneTab, preview, exampleUid, itemUid, isTransient } = action.payload;
 
       const nonReplaceableTabTypes = [
         'variables',
@@ -75,7 +75,8 @@ export const tabsSlice = createSlice({
             : !nonReplaceableTabTypes.includes(type),
           ...(uid ? { folderUid: uid } : {}),
           ...(exampleUid ? { exampleUid } : {}),
-          ...(itemUid ? { itemUid } : {})
+          ...(itemUid ? { itemUid } : {}),
+          ...(isTransient ? { isTransient: true } : {})
         };
 
         state.activeTabUid = uid;
@@ -103,7 +104,8 @@ export const tabsSlice = createSlice({
           ? preview
           : !nonReplaceableTabTypes.includes(type),
         ...(exampleUid ? { exampleUid } : {}),
-        ...(itemUid ? { itemUid } : {})
+        ...(itemUid ? { itemUid } : {}),
+        ...(isTransient ? { isTransient: true } : {})
       });
       state.activeTabUid = uid;
     },
@@ -270,8 +272,9 @@ export const tabsSlice = createSlice({
       const nonClosableTypes = ['workspaceOverview', 'workspaceEnvironments'];
 
       // Push closed tabs onto the recently closed stack (LIFO)
+      // Exclude transient requests — they have no persisted file and can't be reopened
       const closedTabs = state.tabs.filter((t) =>
-        tabUids.includes(t.uid) && !nonClosableTypes.includes(t.type)
+        tabUids.includes(t.uid) && !nonClosableTypes.includes(t.type) && !t.isTransient
       );
       if (closedTabs.length > 0) {
         state.recentlyClosedTabs.push(...closedTabs);