diff --git a/core/http/react-ui/public/locales/de/common.json b/core/http/react-ui/public/locales/de/common.json
index 8a7bea3da..0fe553c9f 100644
--- a/core/http/react-ui/public/locales/de/common.json
+++ b/core/http/react-ui/public/locales/de/common.json
@@ -1,4 +1,9 @@
 {
+  "unsaved": {
+    "title": "Discard unsaved changes?",
+    "message": "You have unsaved changes that will be lost if you leave this page.",
+    "leave": "Leave"
+  },
   "actions": {
     "save": "Speichern",
     "saving": "Speichern...",
diff --git a/core/http/react-ui/public/locales/en/common.json b/core/http/react-ui/public/locales/en/common.json
index 7767ebbae..0086aea81 100644
--- a/core/http/react-ui/public/locales/en/common.json
+++ b/core/http/react-ui/public/locales/en/common.json
@@ -1,4 +1,9 @@
 {
+  "unsaved": {
+    "title": "Discard unsaved changes?",
+    "message": "You have unsaved changes that will be lost if you leave this page.",
+    "leave": "Leave"
+  },
   "actions": {
     "save": "Save",
     "saving": "Saving...",
diff --git a/core/http/react-ui/public/locales/es/common.json b/core/http/react-ui/public/locales/es/common.json
index 97d8fd62f..f362c2a1a 100644
--- a/core/http/react-ui/public/locales/es/common.json
+++ b/core/http/react-ui/public/locales/es/common.json
@@ -1,4 +1,9 @@
 {
+  "unsaved": {
+    "title": "Discard unsaved changes?",
+    "message": "You have unsaved changes that will be lost if you leave this page.",
+    "leave": "Leave"
+  },
   "actions": {
     "save": "Guardar",
     "saving": "Guardando...",
diff --git a/core/http/react-ui/public/locales/id/common.json b/core/http/react-ui/public/locales/id/common.json
index 80dc59c70..711b056df 100644
--- a/core/http/react-ui/public/locales/id/common.json
+++ b/core/http/react-ui/public/locales/id/common.json
@@ -1,4 +1,9 @@
 {
+  "unsaved": {
+    "title": "Discard unsaved changes?",
+    "message": "You have unsaved changes that will be lost if you leave this page.",
+    "leave": "Leave"
+  },
   "actions": {
     "save": "Simpan",
     "saving": "Menyimpan...",
diff --git a/core/http/react-ui/public/locales/it/common.json b/core/http/react-ui/public/locales/it/common.json
index 3b1ced411..ae912a3f1 100644
--- a/core/http/react-ui/public/locales/it/common.json
+++ b/core/http/react-ui/public/locales/it/common.json
@@ -1,4 +1,9 @@
 {
+  "unsaved": {
+    "title": "Scartare le modifiche non salvate?",
+    "message": "Hai modifiche non salvate che andranno perse se esci da questa pagina.",
+    "leave": "Esci"
+  },
   "actions": {
     "save": "Salva",
     "saving": "Salvataggio...",
diff --git a/core/http/react-ui/public/locales/ko/common.json b/core/http/react-ui/public/locales/ko/common.json
index e781c986a..3b5c7eed8 100644
--- a/core/http/react-ui/public/locales/ko/common.json
+++ b/core/http/react-ui/public/locales/ko/common.json
@@ -1,4 +1,9 @@
 {
+  "unsaved": {
+    "title": "Discard unsaved changes?",
+    "message": "You have unsaved changes that will be lost if you leave this page.",
+    "leave": "Leave"
+  },
   "actions": {
     "save": "저장",
     "saving": "저장 중...",
diff --git a/core/http/react-ui/public/locales/zh-CN/common.json b/core/http/react-ui/public/locales/zh-CN/common.json
index 8d5860d85..06578ad87 100644
--- a/core/http/react-ui/public/locales/zh-CN/common.json
+++ b/core/http/react-ui/public/locales/zh-CN/common.json
@@ -1,4 +1,9 @@
 {
+  "unsaved": {
+    "title": "Discard unsaved changes?",
+    "message": "You have unsaved changes that will be lost if you leave this page.",
+    "leave": "Leave"
+  },
   "actions": {
     "save": "保存",
     "saving": "保存中...",
diff --git a/core/http/react-ui/src/App.css b/core/http/react-ui/src/App.css
index 735afe360..81d225080 100644
--- a/core/http/react-ui/src/App.css
+++ b/core/http/react-ui/src/App.css
@@ -2427,6 +2427,40 @@ select.input {
   border-radius: var(--radius-lg);
 }
 
+/* ResponsiveTable: stack dense tables into label/value cards on narrow screens
+   instead of a sideways scroll. Labels come from data-label (mirrored from the
+   <thead> by the ResponsiveTable component). */
+@media (max-width: 640px) {
+  /* Direct-child selectors only: a nested table inside a cell renders normally.
+     min-width override defeats any inline min-width set for the desktop layout. */
+  .table--responsive { border: none; min-width: 0 !important; }
+  .table--responsive > thead { display: none; }
+  .table--responsive > tbody > tr {
+    display: block;
+    border: 1px solid var(--color-border-subtle);
+    border-radius: var(--radius-md);
+    background: var(--color-surface-raised);
+    margin: var(--spacing-sm);
+    padding: var(--spacing-xs) var(--spacing-sm);
+  }
+  .table--responsive > tbody > tr > td {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    gap: var(--spacing-md);
+    border: none;
+    padding: var(--spacing-xs) 0;
+    text-align: right;
+  }
+  .table--responsive > tbody > tr > td[data-label]::before {
+    content: attr(data-label);
+    font-weight: var(--font-weight-semibold);
+    color: var(--color-text-muted);
+    text-align: left;
+    margin-right: auto;
+  }
+}
+
 .table {
   width: 100%;
   border-collapse: collapse;
diff --git a/core/http/react-ui/src/components/ResponsiveTable.jsx b/core/http/react-ui/src/components/ResponsiveTable.jsx
new file mode 100644
index 000000000..50b194a7f
--- /dev/null
+++ b/core/http/react-ui/src/components/ResponsiveTable.jsx
@@ -0,0 +1,40 @@
+import { useRef, useEffect } from 'react'
+
+// Wraps a standard .table and makes it reflow into stacked label/value cards on
+// narrow screens. Column labels are derived from the <thead> and mirrored onto
+// each body cell via data-label (read by CSS ::before in the mobile layout), so
+// any table becomes responsive without hand-labelling every <td>.
+export default function ResponsiveTable({ children, className = '', style, containerStyle }) {
+  const ref = useRef(null)
+
+  useEffect(() => {
+    const table = ref.current
+    if (!table) return
+    const apply = () => {
+      // Direct children only, so a nested table inside a cell is left alone.
+      const heads = [...table.querySelectorAll(':scope > thead > tr > th')].map(th => th.textContent.trim())
+      table.querySelectorAll(':scope > tbody > tr').forEach(tr => {
+        const cells = [...tr.children]
+        // Skip detail/expansion rows (a single cell spanning the table).
+        if (cells.length === 1 && cells[0].colSpan > 1) return
+        cells.forEach((td, i) => {
+          if (heads[i]) td.setAttribute('data-label', heads[i])
+        })
+      })
+    }
+    apply()
+    // Re-apply when rows change (sort, paging, live data). setAttribute touches
+    // attributes only, so a childList/subtree observer won't retrigger itself.
+    const obs = new MutationObserver(apply)
+    obs.observe(table, { childList: true, subtree: true })
+    return () => obs.disconnect()
+  }, [])
+
+  return (
+    <div className="table-container" style={containerStyle}>
+      <table ref={ref} className={`table table--responsive ${className}`.trim()} style={style}>
+        {children}
+      </table>
+    </div>
+  )
+}
diff --git a/core/http/react-ui/src/components/UnsavedChangesGuard.jsx b/core/http/react-ui/src/components/UnsavedChangesGuard.jsx
new file mode 100644
index 000000000..cda5ab1d7
--- /dev/null
+++ b/core/http/react-ui/src/components/UnsavedChangesGuard.jsx
@@ -0,0 +1,36 @@
+import { useEffect, useCallback } from 'react'
+import { useBlocker } from 'react-router-dom'
+import { useTranslation } from 'react-i18next'
+import ConfirmDialog from './ConfirmDialog'
+
+// Guards against losing unsaved work: blocks in-app route changes (via the
+// router's useBlocker) and warns on tab close/reload (beforeunload) whenever
+// `when` is true. Drop into any page that has a dirty-state signal.
+export default function UnsavedChangesGuard({ when }) {
+  const { t } = useTranslation('common')
+  const blocker = useBlocker(
+    useCallback(
+      ({ currentLocation, nextLocation }) => when && currentLocation.pathname !== nextLocation.pathname,
+      [when]
+    )
+  )
+
+  useEffect(() => {
+    if (!when) return
+    const handler = (e) => { e.preventDefault(); e.returnValue = '' }
+    window.addEventListener('beforeunload', handler)
+    return () => window.removeEventListener('beforeunload', handler)
+  }, [when])
+
+  return (
+    <ConfirmDialog
+      open={blocker.state === 'blocked'}
+      title={t('unsaved.title')}
+      message={t('unsaved.message')}
+      confirmLabel={t('unsaved.leave')}
+      danger
+      onConfirm={() => blocker.proceed?.()}
+      onCancel={() => blocker.reset?.()}
+    />
+  )
+}
diff --git a/core/http/react-ui/src/pages/AgentCreate.jsx b/core/http/react-ui/src/pages/AgentCreate.jsx
index 825a590ca..533b45e0f 100644
--- a/core/http/react-ui/src/pages/AgentCreate.jsx
+++ b/core/http/react-ui/src/pages/AgentCreate.jsx
@@ -1,8 +1,9 @@
-import { useState, useEffect, useMemo } from 'react'
+import { useState, useEffect, useMemo, useRef } from 'react'
 import { useParams, useNavigate, useLocation, useOutletContext, useSearchParams } from 'react-router-dom'
 import { agentsApi, skillsApi } from '../utils/api'
 import SearchableModelSelect from '../components/SearchableModelSelect'
 import PageHeader from '../components/PageHeader'
+import UnsavedChangesGuard from '../components/UnsavedChangesGuard'
 import { CAP_CHAT, CAP_TRANSCRIPT, CAP_TTS } from '../utils/capabilities'
 import Toggle from '../components/Toggle'
 import SettingRow from '../components/SettingRow'
@@ -296,6 +297,8 @@ export default function AgentCreate() {
   const [activeSection, setActiveSection] = useState('BasicInfo')
   const [meta, setMeta] = useState(null)
   const [form, setForm] = useState({})
+  // Snapshot of the form as first loaded, for the unsaved-changes guard.
+  const initialFormRef = useRef(null)
   const [connectors, setConnectors] = useState([])
   const [actions, setActions] = useState([])
   const [filters, setFilters] = useState([])
@@ -374,6 +377,7 @@ export default function AgentCreate() {
           if (Array.isArray(sourceConfig.selected_skills)) setSelectedSkills(sourceConfig.selected_skills)
         }
 
+        initialFormRef.current = initialForm
         setForm(initialForm)
       } catch (err) {
         addToast(`Failed to load configuration: ${err.message}`, 'error')
@@ -819,8 +823,12 @@ export default function AgentCreate() {
     )
   }
 
+  const dirty = initialFormRef.current != null &&
+    JSON.stringify(form) !== JSON.stringify(initialFormRef.current)
+
   return (
     <div className="page page--narrow">
+      <UnsavedChangesGuard when={dirty && !saving} />
       <style>{`
         .agent-form-container {
           display: flex;
diff --git a/core/http/react-ui/src/pages/FineTune.jsx b/core/http/react-ui/src/pages/FineTune.jsx
index 9fe7d65b0..5518bf7e1 100644
--- a/core/http/react-ui/src/pages/FineTune.jsx
+++ b/core/http/react-ui/src/pages/FineTune.jsx
@@ -2,6 +2,7 @@ import { useState, useEffect, useRef, useCallback } from 'react'
 import { fineTuneApi } from '../utils/api'
 import LoadingSpinner from '../components/LoadingSpinner'
 import PageHeader from '../components/PageHeader'
+import UnsavedChangesGuard from '../components/UnsavedChangesGuard'
 
 const TRAINING_METHODS = ['sft', 'dpo', 'grpo', 'rloo', 'reward', 'kto', 'orpo']
 const TRAINING_TYPES = ['lora', 'loha', 'lokr', 'full']
@@ -705,6 +706,8 @@ export default function FineTune() {
   const [error, setError] = useState('')
   const [backends, setBackends] = useState([])
   const [exportCheckpoint, setExportCheckpoint] = useState(null)
+  // Baseline of the assembled config for the unsaved-changes guard.
+  const initialConfigRef = useRef(null)
 
   // Form state
   const [model, setModel] = useState('')
@@ -845,6 +848,8 @@ export default function FineTune() {
       const resp = await fineTuneApi.startJob(req)
       setShowForm(false)
       setResumeFromCheckpoint('')
+      // Job submitted: rebaseline so leaving the page no longer warns.
+      initialConfigRef.current = JSON.stringify(getFormConfig())
       await loadJobs()
 
       const newJob = { ...req, id: resp.id, status: 'queued', created_at: new Date().toISOString() }
@@ -1057,8 +1062,13 @@ export default function FineTune() {
     setExportCheckpoint(checkpoint)
   }
 
+  // Lazy-init the baseline on first render; dirty when the open form diverges.
+  if (initialConfigRef.current === null) initialConfigRef.current = JSON.stringify(getFormConfig())
+  const dirty = JSON.stringify(getFormConfig()) !== initialConfigRef.current
+
   return (
     <div className="page page--wide">
+      <UnsavedChangesGuard when={dirty && showForm && !loading} />
       <PageHeader
         title={<>Fine-Tuning <span className="badge badge-warning" style={{ fontSize: '0.45em', verticalAlign: 'middle' }}>Experimental</span></>}
         supporting="Create and manage fine-tuning jobs"
diff --git a/core/http/react-ui/src/pages/Manage.jsx b/core/http/react-ui/src/pages/Manage.jsx
index feef047d4..48d18c33c 100644
--- a/core/http/react-ui/src/pages/Manage.jsx
+++ b/core/http/react-ui/src/pages/Manage.jsx
@@ -12,6 +12,7 @@ import ManageSummary from '../components/ManageSummary'
 import MetaBadgeRow from '../components/MetaBadgeRow'
 import ActionMenu from '../components/ActionMenu'
 import ResourceRow, { ChevronCell, IconCell, StopPropagationCell } from '../components/ResourceRow'
+import ResponsiveTable from '../components/ResponsiveTable'
 import { useModels } from '../hooks/useModels'
 import { useGalleryEnrichment } from '../hooks/useGalleryEnrichment'
 import { useOperations } from '../hooks/useOperations'
@@ -560,8 +561,7 @@ export default function Manage() {
             <button className="btn btn-ghost btn-sm" onClick={() => { setModelsSearch(''); setModelsFilter('all') }}>Clear filters</button>
           </div>
         ) : (
-          <div className="table-container">
-            <table className="table">
+          <ResponsiveTable>
               <thead>
                 <tr>
                   <th style={{ width: 30 }}></th>
@@ -686,8 +686,7 @@ export default function Manage() {
                   )
                 })}
               </tbody>
-            </table>
-          </div>
+          </ResponsiveTable>
         )}
       </div>
         )
@@ -855,8 +854,7 @@ export default function Manage() {
           return (
           <>
             {filterBar}
-            <div className="table-container">
-            <table className="table">
+            <ResponsiveTable>
               <thead>
                 <tr>
                   <th style={{ width: 30 }}></th>
@@ -987,8 +985,7 @@ export default function Manage() {
                   )
                 })}
               </tbody>
-            </table>
-            </div>
+            </ResponsiveTable>
           </>
           )
         })()}
diff --git a/core/http/react-ui/src/pages/Models.jsx b/core/http/react-ui/src/pages/Models.jsx
index c41dde2e5..3c40afc93 100644
--- a/core/http/react-ui/src/pages/Models.jsx
+++ b/core/http/react-ui/src/pages/Models.jsx
@@ -12,6 +12,7 @@ import PageHeader from '../components/PageHeader'
 import ConfirmDialog from '../components/ConfirmDialog'
 import GalleryLoader from '../components/GalleryLoader'
 import Toggle from '../components/Toggle'
+import ResponsiveTable from '../components/ResponsiveTable'
 import React from 'react'
 
 
@@ -389,9 +390,7 @@ export default function Models() {
           )}
         </div>
       ) : (
-        <div className="table-container" style={{ background: 'var(--color-bg-secondary)', borderRadius: 'var(--radius-lg)', overflow: 'hidden' }}>
-          <div style={{ overflowX: 'auto' }}>
-            <table className="table" style={{ minWidth: '800px' }}>
+        <ResponsiveTable containerStyle={{ background: 'var(--color-bg-secondary)', borderRadius: 'var(--radius-lg)', overflow: 'hidden' }} style={{ minWidth: '800px' }}>
               <thead>
                 <tr>
                   <th style={{ width: '30px' }}></th>
@@ -575,9 +574,7 @@ export default function Models() {
                   )
                 })}
               </tbody>
-            </table>
-          </div>
-        </div>
+        </ResponsiveTable>
       )}
 
       {/* Pagination */}
diff --git a/core/http/react-ui/src/pages/Nodes.jsx b/core/http/react-ui/src/pages/Nodes.jsx
index 8fb258fcb..5f6649467 100644
--- a/core/http/react-ui/src/pages/Nodes.jsx
+++ b/core/http/react-ui/src/pages/Nodes.jsx
@@ -9,6 +9,7 @@ import ActionMenu from '../components/ActionMenu'
 import SearchableModelSelect from '../components/SearchableModelSelect'
 import ImageSelector, { useImageSelector, dockerImage, dockerFlags } from '../components/ImageSelector'
 import StatCard from '../components/StatCard'
+import ResponsiveTable from '../components/ResponsiveTable'
 
 function timeAgo(dateString) {
   if (!dateString) return 'never'
@@ -1086,8 +1087,7 @@ export default function Nodes() {
 
       {/* Node table */}
       {filteredNodes.length > 0 && (
-        <div className="table-container">
-          <table className="table">
+        <ResponsiveTable>
             <thead>
               <tr>
                 <th>Name</th>
@@ -1533,8 +1533,7 @@ export default function Nodes() {
                 )
               })}
             </tbody>
-          </table>
-        </div>
+        </ResponsiveTable>
       )}
       </>}
 
@@ -1560,8 +1559,7 @@ export default function Nodes() {
               No scheduling rules configured. Add a rule to control how models are placed on nodes.
             </p>
           ) : schedulingConfigs.length > 0 && (
-            <div className="table-container">
-              <table className="table">
+            <ResponsiveTable>
                 <thead><tr>
                   <th>Model</th>
                   <th>Mode</th>
@@ -1667,8 +1665,7 @@ export default function Nodes() {
                     )
                   })}
                 </tbody>
-              </table>
-            </div>
+            </ResponsiveTable>
           )}
         </div>
       )}
diff --git a/core/http/react-ui/src/pages/Settings.jsx b/core/http/react-ui/src/pages/Settings.jsx
index 55a032c7b..c5cd4e3d3 100644
--- a/core/http/react-ui/src/pages/Settings.jsx
+++ b/core/http/react-ui/src/pages/Settings.jsx
@@ -5,6 +5,7 @@ import { settingsApi, resourcesApi, brandingApi } from '../utils/api'
 import { useBranding } from '../contexts/BrandingContext'
 import LoadingSpinner from '../components/LoadingSpinner'
 import PageHeader from '../components/PageHeader'
+import UnsavedChangesGuard from '../components/UnsavedChangesGuard'
 import SearchableModelSelect from '../components/SearchableModelSelect'
 import { CAP_CHAT } from '../utils/capabilities'
 import Toggle from '../components/Toggle'
@@ -159,6 +160,7 @@ export default function Settings() {
 
   return (
     <div className="page page--medium" style={{ padding: 0 }}>
+      <UnsavedChangesGuard when={isDirty} />
       {/* Header */}
       <div style={{ padding: 'var(--spacing-lg) var(--spacing-lg) 0' }}>
         <PageHeader
diff --git a/core/http/react-ui/src/pages/Traces.jsx b/core/http/react-ui/src/pages/Traces.jsx
index db7653bdf..85387f815 100644
--- a/core/http/react-ui/src/pages/Traces.jsx
+++ b/core/http/react-ui/src/pages/Traces.jsx
@@ -5,6 +5,7 @@ import { tracesApi, settingsApi } from '../utils/api'
 import { formatTimestamp } from '../utils/format'
 import LoadingSpinner from '../components/LoadingSpinner'
 import PageHeader from '../components/PageHeader'
+import ResponsiveTable from '../components/ResponsiveTable'
 import Toggle from '../components/Toggle'
 import SettingRow from '../components/SettingRow'
 import WaveformPlayer from '../components/audio/WaveformPlayer'
@@ -317,7 +318,35 @@ export default function Traces() {
   const [backendCount, setBackendCount] = useState(0)
   const [loading, setLoading] = useState(true)
   const [expandedRow, setExpandedRow] = useState(null)
+  const [sort, setSort] = useState({ key: null, dir: 'asc' })
   const [tracingEnabled, setTracingEnabled] = useState(null)
+
+  const TRACE_SORT = {
+    method: (a, b) => (a.request?.method || '').localeCompare(b.request?.method || ''),
+    path: (a, b) => (a.request?.path || '').localeCompare(b.request?.path || ''),
+    status: (a, b) => (a.response?.status || 0) - (b.response?.status || 0),
+    type: (a, b) => (a.type || '').localeCompare(b.type || ''),
+    time: (a, b) => new Date(a.timestamp || 0) - new Date(b.timestamp || 0),
+    model: (a, b) => (a.model_name || '').localeCompare(b.model_name || ''),
+    duration: (a, b) => (a.duration || 0) - (b.duration || 0),
+  }
+  const toggleSort = (key) => {
+    setExpandedRow(null)
+    setSort(s => s.key === key ? { key, dir: s.dir === 'asc' ? 'desc' : 'asc' } : { key, dir: 'asc' })
+  }
+  const sortableTh = (key, label, props = {}) => (
+    <th
+      {...props}
+      role="button"
+      tabIndex={0}
+      aria-sort={sort.key === key ? (sort.dir === 'asc' ? 'ascending' : 'descending') : 'none'}
+      onClick={() => toggleSort(key)}
+      onKeyDown={(e) => { if (e.key === 'Enter' || e.key === ' ') { e.preventDefault(); toggleSort(key) } }}
+      style={{ cursor: 'pointer', userSelect: 'none', ...(props.style || {}) }}
+    >
+      {label}{sort.key === key && <i className={`fas fa-caret-${sort.dir === 'asc' ? 'up' : 'down'}`} style={{ marginLeft: 4, opacity: 0.7 }} aria-hidden="true" />}
+    </th>
+  )
   const [backendLoggingEnabled, setBackendLoggingEnabled] = useState(null)
   const [settings, setSettings] = useState(null)
   const [settingsExpanded, setSettingsExpanded] = useState(false)
@@ -406,6 +435,13 @@ export default function Traces() {
     URL.revokeObjectURL(url)
   }
 
+  // Reset sort + expansion when switching trace tabs (columns differ).
+  useEffect(() => { setSort({ key: null, dir: 'asc' }); setExpandedRow(null) }, [activeTab])
+
+  const sortedTraces = sort.key && TRACE_SORT[sort.key]
+    ? [...traces].sort((a, b) => sort.dir === 'asc' ? TRACE_SORT[sort.key](a, b) : TRACE_SORT[sort.key](b, a))
+    : traces
+
   return (
     <div className="page page--wide">
       <PageHeader title={t('traces.title')} supporting={t('traces.subtitle')} />
@@ -537,19 +573,18 @@ export default function Traces() {
           </p>
         </div>
       ) : activeTab === 'api' ? (
-        <div className="table-container">
-          <table className="table">
+        <ResponsiveTable>
             <thead>
               <tr>
                 <th style={{ width: '30px' }}></th>
-                <th>Method</th>
-                <th>Path</th>
-                <th>Status</th>
+                {sortableTh('method', 'Method')}
+                {sortableTh('path', 'Path')}
+                {sortableTh('status', 'Status')}
                 <th style={{ width: '40px' }}>Result</th>
               </tr>
             </thead>
             <tbody>
-              {traces.map((trace, i) => (
+              {sortedTraces.map((trace, i) => (
                 <React.Fragment key={i}>
                   <tr onClick={() => setExpandedRow(expandedRow === i ? null : i)} style={{ cursor: 'pointer' }}>
                     <td><i className={`fas fa-chevron-${expandedRow === i ? 'down' : 'right'}`} style={{ fontSize: '0.7rem' }} /></td>
@@ -572,24 +607,22 @@ export default function Traces() {
                 </React.Fragment>
               ))}
             </tbody>
-          </table>
-        </div>
+        </ResponsiveTable>
       ) : (
-        <div className="table-container">
-          <table className="table">
+        <ResponsiveTable>
             <thead>
               <tr>
                 <th style={{ width: '30px' }}></th>
-                <th>Type</th>
-                <th>Time</th>
-                <th>Model</th>
+                {sortableTh('type', 'Type')}
+                {sortableTh('time', 'Time')}
+                {sortableTh('model', 'Model')}
                 <th>Summary</th>
-                <th>Duration</th>
+                {sortableTh('duration', 'Duration')}
                 <th style={{ width: '40px' }}>Status</th>
               </tr>
             </thead>
             <tbody>
-              {traces.map((trace, i) => (
+              {sortedTraces.map((trace, i) => (
                 <React.Fragment key={i}>
                   <tr onClick={() => setExpandedRow(expandedRow === i ? null : i)} style={{ cursor: 'pointer' }}>
                     <td><i className={`fas fa-chevron-${expandedRow === i ? 'down' : 'right'}`} style={{ fontSize: '0.7rem' }} /></td>
@@ -616,8 +649,7 @@ export default function Traces() {
                 </React.Fragment>
               ))}
             </tbody>
-          </table>
-        </div>
+        </ResponsiveTable>
       )}
     </div>
   )
diff --git a/core/http/react-ui/src/pages/Usage.jsx b/core/http/react-ui/src/pages/Usage.jsx
index 7e869c873..50f499ada 100644
--- a/core/http/react-ui/src/pages/Usage.jsx
+++ b/core/http/react-ui/src/pages/Usage.jsx
@@ -413,7 +413,7 @@ function UsageTimeChart({ data, predictedData, period }) {
         <span style={{ fontSize: '0.875rem', fontWeight: 600, color: 'var(--color-text-primary)' }}>Tokens over time</span>
         <div style={{ display: 'flex', gap: 'var(--spacing-md)', fontSize: '0.6875rem', color: 'var(--color-text-muted)' }}>
           <span><span style={{ display: 'inline-block', width: 8, height: 8, borderRadius: "var(--radius-sm)", background: 'var(--color-primary)', marginRight: 4, verticalAlign: 'middle' }} />Prompt</span>
-          <span><span style={{ display: 'inline-block', width: 8, height: 8, borderRadius: "var(--radius-sm)", background: 'var(--color-primary)', opacity: 0.35, marginRight: 4, verticalAlign: 'middle' }} />Completion</span>
+          <span><span style={{ display: 'inline-block', width: 8, height: 8, borderRadius: "var(--radius-sm)", background: 'var(--color-data-3)', marginRight: 4, verticalAlign: 'middle' }} />Completion</span>
           {predictedData && predictedData.length > 0 && (
             <span>
               <span style={{
@@ -472,7 +472,7 @@ function UsageTimeChart({ data, predictedData, period }) {
                   {/* Prompt tokens (bottom) */}
                   <rect x={x} y={chartH - promptH - compH} width={barWidth} height={promptH} fill="var(--color-primary)" rx={2} />
                   {/* Completion tokens (top) */}
-                  <rect x={x} y={chartH - compH} width={barWidth} height={compH} fill="var(--color-primary)" opacity={0.35} rx={2} />
+                  <rect x={x} y={chartH - compH} width={barWidth} height={compH} fill="var(--color-data-3)" rx={2} />
                 </g>
               )
             })}
@@ -571,7 +571,7 @@ function UsageTimeChart({ data, predictedData, period }) {
               {formatBucket(tooltip.data.bucket, period)}
             </div>
             <div><span style={{ color: 'var(--color-primary)' }}>Prompt:</span> {tooltip.predicted ? '~' : ''}{tooltip.data.prompt_tokens.toLocaleString()}</div>
-            <div><span style={{ color: 'var(--color-text-secondary)' }}>Completion:</span> {tooltip.predicted ? '~' : ''}{tooltip.data.completion_tokens.toLocaleString()}</div>
+            <div><span style={{ color: 'var(--color-data-3)' }}>Completion:</span> {tooltip.predicted ? '~' : ''}{tooltip.data.completion_tokens.toLocaleString()}</div>
             <div style={{ color: 'var(--color-text-muted)', borderTop: '1px solid var(--color-border)', marginTop: 2, paddingTop: 2 }}>
               {tooltip.predicted ? '~' : ''}{tooltip.data.request_count} requests
             </div>
@@ -596,7 +596,7 @@ function ModelDistChart({ rows }) {
         <span style={{ fontSize: '0.875rem', fontWeight: 600, color: 'var(--color-text-primary)' }}>Token distribution by model</span>
         <div style={{ display: 'flex', gap: 'var(--spacing-md)', fontSize: '0.6875rem', color: 'var(--color-text-muted)' }}>
           <span><span style={{ display: 'inline-block', width: 8, height: 8, borderRadius: "var(--radius-sm)", background: 'var(--color-primary)', marginRight: 4, verticalAlign: 'middle' }} />Prompt</span>
-          <span><span style={{ display: 'inline-block', width: 8, height: 8, borderRadius: "var(--radius-sm)", background: 'var(--color-primary)', opacity: 0.35, marginRight: 4, verticalAlign: 'middle' }} />Completion</span>
+          <span><span style={{ display: 'inline-block', width: 8, height: 8, borderRadius: "var(--radius-sm)", background: 'var(--color-data-3)', marginRight: 4, verticalAlign: 'middle' }} />Completion</span>
         </div>
       </div>
       <div style={{ display: 'flex', flexDirection: 'column', gap: gap }}>
@@ -613,7 +613,7 @@ function ModelDistChart({ rows }) {
               </div>
               <div style={{ flex: 1, height: barH, background: 'var(--color-bg-primary)', borderRadius: "var(--radius-sm)", overflow: 'hidden', display: 'flex' }}>
                 <div style={{ width: `${promptPct}%`, height: '100%', background: 'var(--color-primary)', transition: 'width 0.3s ease' }} />
-                <div style={{ width: `${compPct}%`, height: '100%', background: 'var(--color-primary)', opacity: 0.35, transition: 'width 0.3s ease' }} />
+                <div style={{ width: `${compPct}%`, height: '100%', background: 'var(--color-data-3)', transition: 'width 0.3s ease' }} />
               </div>
               <div style={{
                 minWidth: 60, textAlign: 'right', fontSize: '0.75rem', fontFamily: 'var(--font-mono)',
diff --git a/core/http/react-ui/src/pages/Usage/SourceTimeChart.jsx b/core/http/react-ui/src/pages/Usage/SourceTimeChart.jsx
index 6472e6c61..3e123250a 100644
--- a/core/http/react-ui/src/pages/Usage/SourceTimeChart.jsx
+++ b/core/http/react-ui/src/pages/Usage/SourceTimeChart.jsx
@@ -101,7 +101,8 @@ export default function SourceTimeChart({ buckets = [], selectedKey, totals }) {
         viewBox={`0 0 ${width} ${height}`}
         preserveAspectRatio="none"
         style={{ width: '100%', height: 160, display: 'block' }}
-        aria-hidden
+        role="img"
+        aria-label={t('usage.sources.topSources')}
       >
         {series.map((row, i) => {
           let y = height
diff --git a/core/http/react-ui/src/pages/Users.jsx b/core/http/react-ui/src/pages/Users.jsx
index 79ce3a990..191c6c401 100644
--- a/core/http/react-ui/src/pages/Users.jsx
+++ b/core/http/react-ui/src/pages/Users.jsx
@@ -5,6 +5,7 @@ import { useAuth } from '../context/AuthContext'
 import { adminUsersApi, adminInvitesApi } from '../utils/api'
 import LoadingSpinner from '../components/LoadingSpinner'
 import PageHeader from '../components/PageHeader'
+import ResponsiveTable from '../components/ResponsiveTable'
 import Modal from '../components/Modal'
 import ConfirmDialog from '../components/ConfirmDialog'
 import Toggle from '../components/Toggle'
@@ -570,8 +571,7 @@ function InvitesTab({ addToast }) {
           <p className="empty-state-text">Generate an invite link to let someone register.</p>
         </div>
       ) : (
-        <div className="table-container">
-          <table className="table">
+        <ResponsiveTable>
             <thead>
               <tr>
                 <th>Invite Link</th>
@@ -638,8 +638,7 @@ function InvitesTab({ addToast }) {
                 </tr>
               ))}
             </tbody>
-          </table>
-        </div>
+        </ResponsiveTable>
       )}
       <ConfirmDialog
         open={!!confirmDialog}
@@ -797,6 +796,33 @@ export default function Users() {
     return (u.name || '').toLowerCase().includes(q) || (u.email || '').toLowerCase().includes(q)
   })
 
+  const [sort, setSort] = useState({ key: null, dir: 'asc' })
+  const USER_SORT = {
+    name: (a, b) => (a.name || '').localeCompare(b.name || ''),
+    email: (a, b) => (a.email || '').localeCompare(b.email || ''),
+    provider: (a, b) => (a.provider || '').localeCompare(b.provider || ''),
+    role: (a, b) => (a.role || '').localeCompare(b.role || ''),
+    status: (a, b) => (a.status || '').localeCompare(b.status || ''),
+    created: (a, b) => new Date(a.createdAt || 0) - new Date(b.createdAt || 0),
+  }
+  const sortedUsers = sort.key
+    ? [...filtered].sort((a, b) => sort.dir === 'asc' ? USER_SORT[sort.key](a, b) : USER_SORT[sort.key](b, a))
+    : filtered
+  const toggleSort = (key) => setSort(s => s.key === key ? { key, dir: s.dir === 'asc' ? 'desc' : 'asc' } : { key, dir: 'asc' })
+  const sortableTh = (key, label, className) => (
+    <th
+      className={className}
+      role="button"
+      tabIndex={0}
+      aria-sort={sort.key === key ? (sort.dir === 'asc' ? 'ascending' : 'descending') : 'none'}
+      onClick={() => toggleSort(key)}
+      onKeyDown={(e) => { if (e.key === 'Enter' || e.key === ' ') { e.preventDefault(); toggleSort(key) } }}
+      style={{ cursor: 'pointer', userSelect: 'none' }}
+    >
+      {label}{sort.key === key && <i className={`fas fa-caret-${sort.dir === 'asc' ? 'up' : 'down'}`} style={{ marginLeft: 4, opacity: 0.7 }} aria-hidden="true" />}
+    </th>
+  )
+
   const handlePermissionSave = (userId, newPerms, newModels, newQuotas) => {
     setUsers(prev => prev.map(u => u.id === userId ? { ...u, permissions: newPerms, allowed_models: newModels, quotas: newQuotas } : u))
   }
@@ -854,22 +880,21 @@ export default function Users() {
               <p className="empty-state-text">{search ? 'Try a different search term.' : 'No registered users found.'}</p>
             </div>
           ) : (
-            <div className="table-container">
-              <table className="table">
+            <ResponsiveTable>
                 <thead>
                   <tr>
-                    <th>User</th>
-                    <th>Email</th>
-                    <th>Provider</th>
-                    <th>Role</th>
+                    {sortableTh('name', 'User')}
+                    {sortableTh('email', 'Email')}
+                    {sortableTh('provider', 'Provider')}
+                    {sortableTh('role', 'Role')}
                     <th>Permissions</th>
-                    <th>Status</th>
-                    <th>Created</th>
+                    {sortableTh('status', 'Status')}
+                    {sortableTh('created', 'Created')}
                     <th className="cell-actions">Actions</th>
                   </tr>
                 </thead>
                 <tbody>
-                  {filtered.map(u => (
+                  {sortedUsers.map(u => (
                     <tr key={u.id}>
                       <td>
                         <div className="user-identity">
@@ -943,8 +968,7 @@ export default function Users() {
                     </tr>
                   ))}
                 </tbody>
-              </table>
-            </div>
+            </ResponsiveTable>
           )}
         </>
       )}