hover

frontend/src/screens/Inbox.jsx

@@ -40,6 +40,20 @@ import {
 const TABS = ['All Applications', 'Suggested Match', 'Unread', 'Processed', 'On-Hold', 'Rejected', 'Duplicates']
 /** Sheet Forms have no mailbox read state — no Unread tab on that channel. */
 const FORM_TABS = ['All Applications', 'Suggested Match', 'Processed', 'On-Hold', 'Rejected', 'Duplicates']
+const TAB_HINTS = {
+  'All Applications': 'Every application in this channel',
+  'Suggested Match': 'Matcher found at least one job',
+  Unread: 'Email not marked read yet',
+  Processed: 'Recruiter imported or shortlisted',
+  'On-Hold': 'No suggested job found',
+  Rejected: 'Recruiter rejected from the inbox',
+  Duplicates: 'Flagged duplicates and reapplicants',
+}
+const CHANNEL_HINTS = {
+  all: 'Email and forms together',
+  email: 'Outlook applications with a resume',
+  forms: 'Google Form applicants',
+}
 /** Inbox GET `top` / sheet GET `limit` both cap at 500. */
 const PAGE_SIZE_MAX = 500
 
@@ -1906,6 +1920,7 @@ export default function Inbox() {
                 role="tab"
                 aria-selected={channel === c.key}
                 className={`pill-tab${channel === c.key ? ' active' : ''}`}
+                data-tip={CHANNEL_HINTS[c.key]}
                 onClick={() => switchChannel(c.key)}
               >
                 <Icon name={c.icon} /> {c.label}
@@ -1940,7 +1955,7 @@ export default function Inbox() {
               setSelectedId(null)
               selection.clear()
             }}
-            tabs={channelTabs.map((t) => ({ key: t, label: t, count: counts[t] }))}
+            tabs={channelTabs.map((t) => ({ key: t, label: t, count: counts[t], title: TAB_HINTS[t] }))}
           />
         </div>
 

frontend/src/ui/Tabs.jsx

@@ -49,6 +49,7 @@ export function Tabs({ tabs, value, onChange, className = 'tabs', idBase }) {
             aria-controls={`${base}-panel-${i}`}
             tabIndex={active ? 0 : -1}
             className={`tab${active ? ' active' : ''}`}
+            data-tip={t.title || undefined}
             onClick={() => onChange(key)}
           >
             {label}{t.count != null && typeof t.count !== 'object' && (