diff --git a/apps/desktop/src/renderer/components/CloudSyncSection.tsx b/apps/desktop/src/renderer/components/CloudSyncSection.tsx
index 81f5548..6344b61 100644
--- a/apps/desktop/src/renderer/components/CloudSyncSection.tsx
+++ b/apps/desktop/src/renderer/components/CloudSyncSection.tsx
@@ -4,10 +4,7 @@
 
 import { useEffect, useState } from 'react'
 import { Box, Button, Stack, Alert, CircularProgress } from '@mui/material'
-import CloudIcon from '@mui/icons-material/Cloud'
-import CloudDoneIcon from '@mui/icons-material/CloudDone'
-import GoogleIcon from '@mui/icons-material/Google'
-import GitHubIcon from '@mui/icons-material/GitHub'
+import { Cloud, CloudCheck, Globe, GitBranch } from 'lucide-react'
 import { d3roPalette, typoSx } from '@d3ro/ui/theme'
 import { useI18n } from '@d3ro/i18n'
 
@@ -128,9 +125,9 @@ export function CloudSyncSection(): React.ReactElement {
     <Box sx={{ p: 3, bgcolor: d3roPalette.bg.elevated, borderRadius: 2 }}>
       <Stack direction="row" alignItems="center" spacing={1.5} sx={{ mb: 2 }}>
         {state.authenticated ? (
-          <CloudDoneIcon sx={{ color: d3roPalette.tag.green }} />
+          <CloudCheck size={24} style={{ color: d3roPalette.tag.green }} />
         ) : (
-          <CloudIcon sx={{ color: d3roPalette.text.label }} />
+          <Cloud size={24} style={{ color: d3roPalette.text.label }} />
         )}
         <Box sx={{ ...typoSx('heading'), color: d3roPalette.text.primary }}>Cloud Sync</Box>
       </Stack>
@@ -141,7 +138,7 @@ export function CloudSyncSection(): React.ReactElement {
           <Stack direction="row" spacing={1}>
             <Button
               variant="contained"
-              startIcon={<GoogleIcon />}
+              startIcon={<Globe size={18} />}
               onClick={() => void handleSignIn('google')}
               disabled={busy}
             >
@@ -149,7 +146,7 @@ export function CloudSyncSection(): React.ReactElement {
             </Button>
             <Button
               variant="outlined"
-              startIcon={<GitHubIcon />}
+              startIcon={<GitBranch size={18} />}
               onClick={() => void handleSignIn('github')}
               disabled={busy}
             >
diff --git a/apps/desktop/src/renderer/components/FileDropZone.tsx b/apps/desktop/src/renderer/components/FileDropZone.tsx
index 4a615dc..e0d58e6 100644
--- a/apps/desktop/src/renderer/components/FileDropZone.tsx
+++ b/apps/desktop/src/renderer/components/FileDropZone.tsx
@@ -3,9 +3,7 @@
 
 import { useState, useEffect, useCallback, useRef } from 'react'
 import { Box, LinearProgress, IconButton, Tooltip } from '@mui/material'
-import ContentCopyIcon from '@mui/icons-material/ContentCopy'
-import CloseIcon from '@mui/icons-material/Close'
-import UploadFileIcon from '@mui/icons-material/UploadFile'
+import { Copy, X, FileUp } from 'lucide-react'
 import { MetalCard, PhosphorText, Led } from '@d3ro/ui/components/ds'
 import { d3roPalette, d3roTypo } from '@d3ro/ui/theme'
 import { useI18n } from '@d3ro/i18n'
@@ -136,7 +134,7 @@ export function FileDropZone(): React.ReactElement {
             '&:hover': { borderColor: d3roPalette.accent.amber },
           }}
         >
-          <UploadFileIcon sx={{ fontSize: 40, color: d3roPalette.text.inactive, mb: 1 }} />
+          <FileUp size={40} style={{ color: d3roPalette.text.inactive, marginBottom: 8 }} />
           <PhosphorText variant="body" sx={{ color: d3roPalette.text.secondary }}>
             {t('fileTranscription.dropZone')}
           </PhosphorText>
@@ -216,11 +214,11 @@ export function FileDropZone(): React.ReactElement {
             <Box sx={{ display: 'flex', gap: 0.5 }}>
               <Tooltip title={copied ? 'Copied!' : t('fileTranscription.copyAll')}>
                 <IconButton size="small" onClick={handleCopy}>
-                  <ContentCopyIcon sx={{ fontSize: 16, color: copied ? d3roPalette.accent.amber : d3roPalette.text.inactive }} />
+                  <Copy size={16} style={{ color: copied ? d3roPalette.accent.amber : d3roPalette.text.inactive }} />
                 </IconButton>
               </Tooltip>
               <IconButton size="small" onClick={handleReset}>
-                <CloseIcon sx={{ fontSize: 16, color: d3roPalette.text.inactive }} />
+                <X size={16} style={{ color: d3roPalette.text.inactive }} />
               </IconButton>
             </Box>
           </Box>
diff --git a/apps/desktop/src/renderer/components/LicenseModal.tsx b/apps/desktop/src/renderer/components/LicenseModal.tsx
index 87e779e..b56bcee 100644
--- a/apps/desktop/src/renderer/components/LicenseModal.tsx
+++ b/apps/desktop/src/renderer/components/LicenseModal.tsx
@@ -10,9 +10,7 @@ import {
   Divider,
   LinearProgress,
 } from '@mui/material'
-import CloseIcon from '@mui/icons-material/Close'
-import CheckCircleIcon from '@mui/icons-material/CheckCircle'
-import CancelIcon from '@mui/icons-material/Cancel'
+import { X, CircleCheck, XCircle } from 'lucide-react'
 import { MetalCard, PhosphorText, Led, PhysicalButton } from '@d3ro/ui/components/ds'
 import { d3roPalette, d3roTypo, d3roRadius, d3roShadow, d3roFontMono } from '@d3ro/ui/theme'
 import { useI18n } from '@d3ro/i18n'
@@ -61,7 +59,7 @@ export function LicenseModal({ open, onClose }: LicenseModalProps): React.ReactE
       >
         <PhosphorText variant="meta">{t('license.title')}</PhosphorText>
         <IconButton size="small" onClick={onClose} sx={{ color: d3roPalette.text.inactive }}>
-          <CloseIcon sx={{ fontSize: 18 }} />
+          <X size={18} />
         </IconButton>
       </DialogTitle>
 
@@ -325,10 +323,10 @@ function UpgradeButton({ tier, t, onUpgrade }: { tier: 'pro' | 'pro_plus'; t: (k
 
 function TierCell({ value }: { value: boolean | string }): React.ReactElement {
   if (value === true) {
-    return <CheckCircleIcon sx={{ fontSize: 14, color: d3roPalette.tag.green }} />
+    return <CircleCheck size={14} style={{ color: d3roPalette.tag.green }} />
   }
   if (value === false) {
-    return <CancelIcon sx={{ fontSize: 14, color: d3roPalette.text.disabled }} />
+    return <XCircle size={14} style={{ color: d3roPalette.text.disabled }} />
   }
   return (
     <PhosphorText variant="dim" sx={{ fontSize: d3roTypo.small.size, color: d3roPalette.accent.amber }}>
diff --git a/apps/desktop/src/renderer/components/LicenseTab.tsx b/apps/desktop/src/renderer/components/LicenseTab.tsx
index 6b20bbd..ebb8b11 100644
--- a/apps/desktop/src/renderer/components/LicenseTab.tsx
+++ b/apps/desktop/src/renderer/components/LicenseTab.tsx
@@ -6,8 +6,7 @@ import {
   Divider,
   LinearProgress,
 } from '@mui/material'
-import CheckCircleIcon from '@mui/icons-material/CheckCircle'
-import CancelIcon from '@mui/icons-material/Cancel'
+import { CircleCheck, XCircle } from 'lucide-react'
 import { Led, PhosphorText, PhysicalButton, MetalCard } from '@d3ro/ui/components/ds'
 import { d3roPalette, d3roFontMono, d3roTypo, d3roRadius } from '@d3ro/ui/theme'
 import { useI18n } from '@d3ro/i18n'
@@ -316,10 +315,10 @@ function ComparisonTable({ t, comparison }: { t: (k: string) => string; comparis
 
 function TierCell({ value }: { value: boolean | string }): React.ReactElement {
   if (value === true) {
-    return <CheckCircleIcon sx={{ fontSize: 14, color: d3roPalette.tag.green }} />
+    return <CircleCheck size={14} style={{ color: d3roPalette.tag.green }} />
   }
   if (value === false) {
-    return <CancelIcon sx={{ fontSize: 14, color: d3roPalette.text.disabled }} />
+    return <XCircle size={14} style={{ color: d3roPalette.text.disabled }} />
   }
   return (
     <PhosphorText variant="dim" sx={{ fontSize: d3roTypo.small.size, color: d3roPalette.accent.amber }}>
diff --git a/apps/desktop/src/renderer/components/OllamaGuideModal.tsx b/apps/desktop/src/renderer/components/OllamaGuideModal.tsx
index 8f2795a..9e704ee 100644
--- a/apps/desktop/src/renderer/components/OllamaGuideModal.tsx
+++ b/apps/desktop/src/renderer/components/OllamaGuideModal.tsx
@@ -12,9 +12,7 @@ import {
   Divider,
   IconButton,
 } from '@mui/material'
-import CloseIcon from '@mui/icons-material/Close'
-import OpenInNewIcon from '@mui/icons-material/OpenInNew'
-import ContentCopyIcon from '@mui/icons-material/ContentCopy'
+import { X, ExternalLink, Copy } from 'lucide-react'
 import { d3roPalette, d3roFontMono, d3roShadow } from '@d3ro/ui/theme'
 import { Led } from '@d3ro/ui/components/ds'
 import { useI18n } from '@d3ro/i18n'
@@ -46,7 +44,7 @@ function CodeBlock({ children }: { children: string }): React.ReactElement {
         onClick={() => navigator.clipboard.writeText(children)}
         sx={{ color: d3roPalette.text.inactive, '&:hover': { color: d3roPalette.accent.amber } }}
       >
-        <ContentCopyIcon sx={{ fontSize: 14 }} />
+        <Copy size={14} />
       </IconButton>
     </Box>
   )
@@ -88,7 +86,7 @@ export function OllamaGuideModal({ open, onClose }: OllamaGuideModalProps): Reac
       >
         {t('ollama.title')}
         <IconButton onClick={onClose} size="small" sx={{ color: d3roPalette.text.inactive }}>
-          <CloseIcon sx={{ fontSize: 18 }} />
+          <X size={18} />
         </IconButton>
       </DialogTitle>
       <Divider sx={{ borderColor: d3roPalette.border.subtle }} />
@@ -108,7 +106,7 @@ export function OllamaGuideModal({ open, onClose }: OllamaGuideModalProps): Reac
             <Button
               variant="outlined"
               size="small"
-              endIcon={<OpenInNewIcon sx={{ fontSize: 14 }} />}
+              endIcon={<ExternalLink size={14} />}
               onClick={() => handleOpenLink('https://ollama.com/download')}
               sx={{ fontFamily: d3roFontMono, fontSize: '11px' }}
             >
diff --git a/apps/desktop/src/renderer/components/OnboardingModal.tsx b/apps/desktop/src/renderer/components/OnboardingModal.tsx
index 28cc1ee..76044eb 100644
--- a/apps/desktop/src/renderer/components/OnboardingModal.tsx
+++ b/apps/desktop/src/renderer/components/OnboardingModal.tsx
@@ -21,9 +21,7 @@ import {
   Box,
   LinearProgress,
 } from '@mui/material'
-import CheckCircleOutlineIcon from '@mui/icons-material/CheckCircleOutline'
-import ErrorOutlineIcon from '@mui/icons-material/ErrorOutline'
-import CloudDownloadIcon from '@mui/icons-material/CloudDownload'
+import { CheckCircle2, AlertCircle, CloudDownload } from 'lucide-react'
 import { d3roPalette, d3roRadius, typoSx } from '@d3ro/ui/theme'
 import { useI18n } from '@d3ro/i18n'
 
@@ -281,11 +279,11 @@ export function OnboardingModal({ open, onClose }: OnboardingModalProps): React.
         }}
       >
         {isSuccess ? (
-          <CheckCircleOutlineIcon sx={{ color: colorSuccess }} />
+          <CheckCircle2 size={24} style={{ color: colorSuccess }} />
         ) : isFailed ? (
-          <ErrorOutlineIcon sx={{ color: colorDanger }} />
+          <AlertCircle size={24} style={{ color: colorDanger }} />
         ) : (
-          <CloudDownloadIcon sx={{ color: colorAccent }} />
+          <CloudDownload size={24} style={{ color: colorAccent }} />
         )}
         {t('onboarding.title')}
       </DialogTitle>
diff --git a/apps/desktop/src/renderer/components/ProBadge.tsx b/apps/desktop/src/renderer/components/ProBadge.tsx
index 335f0d6..accbf2c 100644
--- a/apps/desktop/src/renderer/components/ProBadge.tsx
+++ b/apps/desktop/src/renderer/components/ProBadge.tsx
@@ -3,7 +3,7 @@
 // shows lock overlay with PRO badge if locked.
 
 import { Box, Typography } from '@mui/material'
-import LockIcon from '@mui/icons-material/Lock'
+import { Lock } from 'lucide-react'
 import { d3roPalette, d3roFontMono, d3roTypo, d3roRadius } from '@d3ro/ui/theme'
 import { useProFeature } from '../hooks/useProFeature'
 import { useI18n } from '@d3ro/i18n'
@@ -59,7 +59,7 @@ export function ProBadge({ feature, children }: ProBadgeProps): React.ReactEleme
             border: `1px solid ${d3roPalette.border.default}`,
           }}
         >
-          <LockIcon sx={{ fontSize: 14, color: d3roPalette.accent.amber }} />
+          <Lock size={14} style={{ color: d3roPalette.accent.amber }} />
           <Typography
             sx={{
               fontFamily: d3roFontMono,
diff --git a/apps/desktop/src/renderer/components/SettingsModal.tsx b/apps/desktop/src/renderer/components/SettingsModal.tsx
index d1be6c3..8980bb9 100644
--- a/apps/desktop/src/renderer/components/SettingsModal.tsx
+++ b/apps/desktop/src/renderer/components/SettingsModal.tsx
@@ -24,14 +24,7 @@ import {
   Stack,
   Paper,
 } from '@mui/material'
-import CloseIcon from '@mui/icons-material/Close'
-import KeyboardIcon from '@mui/icons-material/Keyboard'
-import EditIcon from '@mui/icons-material/Edit'
-import MicIcon from '@mui/icons-material/Mic'
-import LockIcon from '@mui/icons-material/Lock'
-import CloudIcon from '@mui/icons-material/Cloud'
-import CheckCircleIcon from '@mui/icons-material/CheckCircle'
-import CancelIcon from '@mui/icons-material/Cancel'
+import { X, Keyboard, Pencil, Mic, Lock, Cloud } from 'lucide-react'
 import { d3roPalette, d3roFontMono, d3roShadow } from '@d3ro/ui/theme'
 import { HotkeyRecordModal } from './HotkeyRecordModal'
 import { formatHotkeyLabel, formatHotkeySegments } from '../utils/format-hotkey'
@@ -100,7 +93,7 @@ function HotkeyDisplay({
         </Typography>
       )}
       <IconButton size="small" onClick={onEdit} sx={{ color: d3roPalette.text.inactive, ml: 'auto' }}>
-        <EditIcon sx={{ fontSize: 16 }} />
+        <Pencil size={16} />
       </IconButton>
     </Box>
   )
@@ -342,7 +335,7 @@ export function SettingsModal({ open, onClose }: SettingsModalProps): React.Reac
         >
           {t('settings.title')}
           <IconButton onClick={onClose} size="small" sx={{ color: d3roPalette.text.inactive }}>
-            <CloseIcon sx={{ fontSize: 18 }} />
+            <X size={18} />
           </IconButton>
         </DialogTitle>
         <Divider sx={{ borderColor: d3roPalette.border.subtle }} />
@@ -370,12 +363,12 @@ export function SettingsModal({ open, onClose }: SettingsModalProps): React.Reac
               '& .MuiTabs-indicator': { bgcolor: d3roPalette.accent.amber, height: 2 },
             }}
           >
-            <Tab label={t('settings.tabs.general')} icon={<KeyboardIcon sx={{ fontSize: 14 }} />} iconPosition="start" />
-            <Tab label={t('settings.tabs.audio')} icon={<MicIcon sx={{ fontSize: 14 }} />} iconPosition="start" />
+            <Tab label={t('settings.tabs.general')} icon={<Keyboard size={14} />} iconPosition="start" />
+            <Tab label={t('settings.tabs.audio')} icon={<Mic size={14} />} iconPosition="start" />
             <Tab label={t('settings.tabs.stt')} />
             <Tab label={t('settings.tabs.llm')} />
-            <Tab label={t('license.nav')} icon={<LockIcon sx={{ fontSize: 14 }} />} iconPosition="start" />
-            <Tab label={t('settings.tabs.cloud') ?? 'Cloud'} icon={<CloudIcon sx={{ fontSize: 14 }} />} iconPosition="start" />
+            <Tab label={t('license.nav')} icon={<Lock size={14} />} iconPosition="start" />
+            <Tab label={t('settings.tabs.cloud') ?? 'Cloud'} icon={<Cloud size={14} />} iconPosition="start" />
             <Tab label={t('settings.tabs.about')} />
           </Tabs>
           <Box sx={{ p: 3 }}>
@@ -531,7 +524,7 @@ export function SettingsModal({ open, onClose }: SettingsModalProps): React.Reac
                     setSelectedDeviceId(deviceId)
                     window.electronAPI.audio.setSelectedDevice({ deviceId })
                   }}
-                  startAdornment={<MicIcon sx={{ color: d3roPalette.text.inactive, mr: 1, fontSize: 18 }} />}
+                  startAdornment={<Mic size={18} style={{ color: d3roPalette.text.inactive, marginRight: 8 }} />}
                 >
                   {audioDevices.map((device, idx) => (
                     <MenuItem key={`${device.deviceId}-${idx}`} value={device.deviceId}>
diff --git a/apps/desktop/src/renderer/components/TemplateSection.tsx b/apps/desktop/src/renderer/components/TemplateSection.tsx
index bfefd01..5f63f6f 100644
--- a/apps/desktop/src/renderer/components/TemplateSection.tsx
+++ b/apps/desktop/src/renderer/components/TemplateSection.tsx
@@ -3,10 +3,7 @@
 
 import { useState, useEffect, useCallback } from 'react'
 import { Box, Button, IconButton, Dialog, DialogTitle, DialogContent, DialogActions, TextField, Tooltip } from '@mui/material'
-import AddIcon from '@mui/icons-material/Add'
-import DeleteIcon from '@mui/icons-material/Delete'
-import EditIcon from '@mui/icons-material/Edit'
-import PlayArrowIcon from '@mui/icons-material/PlayArrow'
+import { Plus, Trash2, Pencil, Play } from 'lucide-react'
 import { MetalCard, PhosphorText, Led, PhysicalButton } from '@d3ro/ui/components/ds'
 import { PageHeader, EmptyStateCard } from './shared'
 import { d3roPalette, d3roFontMono, d3roTypo, d3roRadius } from '@d3ro/ui/theme'
@@ -128,7 +125,7 @@ export function TemplateSection(): React.ReactElement {
         title={t('template.title').toUpperCase()}
         action={
           <PhysicalButton size="small" onClick={openCreate}>
-            <AddIcon sx={{ fontSize: 14, mr: 0.5 }} /> {t('template.create')}
+            <Plus size={14} style={{ marginRight: 4 }} /> {t('template.create')}
           </PhysicalButton>
         }
       />
@@ -182,7 +179,7 @@ export function TemplateSection(): React.ReactElement {
                       disabled={!!session}
                       sx={{ color: d3roPalette.accent.amber, '&:hover': { opacity: 0.8 } }}
                     >
-                      <PlayArrowIcon sx={{ fontSize: 18 }} />
+                      <Play size={18} />
                     </IconButton>
                   </Tooltip>
                   <IconButton
@@ -190,7 +187,7 @@ export function TemplateSection(): React.ReactElement {
                     onClick={() => openEdit(tmpl)}
                     sx={{ color: d3roPalette.text.inactive, '&:hover': { color: d3roPalette.accent.amber } }}
                   >
-                    <EditIcon sx={{ fontSize: 16 }} />
+                    <Pencil size={16} />
                   </IconButton>
                   {!tmpl.isBuiltin && (
                     <IconButton
@@ -198,7 +195,7 @@ export function TemplateSection(): React.ReactElement {
                       onClick={() => handleDelete(tmpl.id)}
                       sx={{ color: d3roPalette.text.inactive, '&:hover': { color: d3roPalette.tag.red } }}
                     >
-                      <DeleteIcon sx={{ fontSize: 16 }} />
+                      <Trash2 size={16} />
                     </IconButton>
                   )}
                 </Box>
@@ -260,12 +257,12 @@ export function TemplateSection(): React.ReactElement {
                 disabled={formFields.length <= 1}
                 sx={{ color: d3roPalette.text.inactive }}
               >
-                <DeleteIcon sx={{ fontSize: 16 }} />
+                <Trash2 size={16} />
               </IconButton>
             </Box>
           ))}
 
-          <Button onClick={addField} startIcon={<AddIcon />} size="small" sx={{ alignSelf: 'flex-start' }}>
+          <Button onClick={addField} startIcon={<Plus size={16} />} size="small" sx={{ alignSelf: 'flex-start' }}>
             {t('template.addField')}
           </Button>
 
diff --git a/apps/desktop/src/renderer/components/UpgradePromptModal.tsx b/apps/desktop/src/renderer/components/UpgradePromptModal.tsx
index c638cf3..0fd811f 100644
--- a/apps/desktop/src/renderer/components/UpgradePromptModal.tsx
+++ b/apps/desktop/src/renderer/components/UpgradePromptModal.tsx
@@ -12,8 +12,7 @@ import {
   Box,
   LinearProgress,
 } from '@mui/material'
-import LockIcon from '@mui/icons-material/Lock'
-import CheckCircleOutlineIcon from '@mui/icons-material/CheckCircleOutline'
+import { Lock, CheckCircle2 } from 'lucide-react'
 import { d3roPalette, d3roFontMono, d3roTypo, d3roRadius, d3roShadow } from '@d3ro/ui/theme'
 import { useI18n } from '@d3ro/i18n'
 import type { UpgradePromptEvent, UsageQuota } from '@d3ro/core/types'
@@ -80,7 +79,7 @@ export function UpgradePromptModal(): React.ReactElement {
           color: d3roPalette.accent.amber,
         }}
       >
-        <LockIcon sx={{ fontSize: 20 }} />
+        <Lock size={20} />
         {isQuota
           ? t('license.quotaExceeded.title', { feature: featureLabel })
           : isLoginRequired
@@ -134,9 +133,7 @@ export function UpgradePromptModal(): React.ReactElement {
               key={benefit}
               sx={{ display: 'flex', alignItems: 'center', gap: 0.5, mb: 0.5 }}
             >
-              <CheckCircleOutlineIcon
-                sx={{ fontSize: 14, color: d3roPalette.tag.green }}
-              />
+              <CheckCircle2 size={14} style={{ color: d3roPalette.tag.green }} />
               <Typography
                 sx={{
                   fontFamily: d3roFontMono,
diff --git a/apps/desktop/src/renderer/components/meeting/DocumentTab.tsx b/apps/desktop/src/renderer/components/meeting/DocumentTab.tsx
index 3336e6c..ff2653a 100644
--- a/apps/desktop/src/renderer/components/meeting/DocumentTab.tsx
+++ b/apps/desktop/src/renderer/components/meeting/DocumentTab.tsx
@@ -3,7 +3,7 @@
 
 import { useCallback, useRef } from 'react'
 import { Box } from '@mui/material'
-import DeleteIcon from '@mui/icons-material/Delete'
+import { Trash2 } from 'lucide-react'
 import { MarkdownEditor } from './MarkdownEditor'
 import { ExportMenu } from './ExportMenu'
 import { PhysicalButton } from '@d3ro/ui/components/ds'
@@ -80,7 +80,7 @@ export function DocumentTab({
           onClick={onDelete}
           sx={{ height: 32, fontSize: d3roTypo.engrave.size }}
         >
-          <DeleteIcon sx={{ fontSize: 14, mr: 0.5 }} />
+          <Trash2 size={14} style={{ marginRight: 4 }} />
           {t('common.delete')}
         </PhysicalButton>
       </Box>
diff --git a/apps/desktop/src/renderer/components/meeting/ExportMenu.tsx b/apps/desktop/src/renderer/components/meeting/ExportMenu.tsx
index ca8836d..664e9b9 100644
--- a/apps/desktop/src/renderer/components/meeting/ExportMenu.tsx
+++ b/apps/desktop/src/renderer/components/meeting/ExportMenu.tsx
@@ -3,7 +3,7 @@
 
 import { useState, useCallback } from 'react'
 import { Menu, MenuItem } from '@mui/material'
-import FileDownloadIcon from '@mui/icons-material/FileDownload'
+import { Download } from 'lucide-react'
 import { PhysicalButton } from '@d3ro/ui/components/ds'
 import { d3roPalette, d3roTypo, d3roFontMono, d3roRadius, d3roShadow } from '@d3ro/ui/theme'
 import { useI18n } from '@d3ro/i18n'
@@ -54,7 +54,7 @@ export function ExportMenu({ onExport, onCopyToClipboard }: ExportMenuProps): Re
         onClick={handleOpen}
         sx={{ height: 32, fontSize: d3roTypo.engrave.size }}
       >
-        <FileDownloadIcon sx={{ fontSize: 14, mr: 0.5 }} />
+        <Download size={14} style={{ marginRight: 4 }} />
         {t('meeting.exportFormat')}
       </PhysicalButton>
 
diff --git a/apps/desktop/src/renderer/components/meeting/MeetingChatPanel.tsx b/apps/desktop/src/renderer/components/meeting/MeetingChatPanel.tsx
index fb6ccb6..afce403 100644
--- a/apps/desktop/src/renderer/components/meeting/MeetingChatPanel.tsx
+++ b/apps/desktop/src/renderer/components/meeting/MeetingChatPanel.tsx
@@ -3,10 +3,7 @@
 
 import { useState, useCallback, useEffect, useRef, useMemo } from 'react'
 import { Box, TextField, IconButton, Tooltip } from '@mui/material'
-import SendIcon from '@mui/icons-material/Send'
-import DeleteSweepIcon from '@mui/icons-material/DeleteSweep'
-import ExpandLessIcon from '@mui/icons-material/ExpandLess'
-import ExpandMoreIcon from '@mui/icons-material/ExpandMore'
+import { Send, Trash2, ChevronUp, ChevronDown } from 'lucide-react'
 import { PhosphorText } from '@d3ro/ui/components/ds'
 import { PhysicalButton } from '@d3ro/ui/components/ds'
 import { isImeComposingEvent } from '../../utils/keyboard'
@@ -187,16 +184,16 @@ export function MeetingChatPanel({ sessionId }: MeetingChatPanelProps): React.Re
             onClick={handleClear}
             disabled={messages.length === 0 && !streaming}
           >
-            <DeleteSweepIcon sx={{ fontSize: 15, color: d3roPalette.text.inactive }} />
+            <Trash2 size={15} style={{ color: d3roPalette.text.inactive }} />
           </IconButton>
         </Tooltip>
 
         <Tooltip title={collapsed ? t('meeting.chatExpand') : t('meeting.chatCollapse')}>
           <IconButton size="small" onClick={handleToggleCollapse}>
             {collapsed ? (
-              <ExpandLessIcon sx={{ fontSize: 15, color: d3roPalette.text.inactive }} />
+              <ChevronUp size={15} style={{ color: d3roPalette.text.inactive }} />
             ) : (
-              <ExpandMoreIcon sx={{ fontSize: 15, color: d3roPalette.text.inactive }} />
+              <ChevronDown size={15} style={{ color: d3roPalette.text.inactive }} />
             )}
           </IconButton>
         </Tooltip>
@@ -408,7 +405,7 @@ export function MeetingChatPanel({ sessionId }: MeetingChatPanelProps): React.Re
               disabled={!inputValue.trim() || streaming}
               sx={{ flexShrink: 0, height: 36, minWidth: 36, px: 1 }}
             >
-              <SendIcon sx={{ fontSize: 14 }} />
+              <Send size={14} />
             </PhysicalButton>
           </Box>
         </>
diff --git a/apps/desktop/src/renderer/components/meeting/MeetingDetailTabs.tsx b/apps/desktop/src/renderer/components/meeting/MeetingDetailTabs.tsx
index dc9cf35..0cd3987 100644
--- a/apps/desktop/src/renderer/components/meeting/MeetingDetailTabs.tsx
+++ b/apps/desktop/src/renderer/components/meeting/MeetingDetailTabs.tsx
@@ -10,10 +10,7 @@ import {
   TextField,
   Tooltip,
 } from '@mui/material'
-import ArrowBackIcon from '@mui/icons-material/ArrowBack'
-import AddIcon from '@mui/icons-material/Add'
-import EditIcon from '@mui/icons-material/Edit'
-import CheckIcon from '@mui/icons-material/Check'
+import { ArrowLeft, Plus, Pencil, Check } from 'lucide-react'
 import { TranscriptTab } from './TranscriptTab'
 import { DocumentTab } from './DocumentTab'
 import { AddDocumentDialog } from './AddDocumentDialog'
@@ -231,7 +228,7 @@ export function MeetingDetailTabs({
         }}
       >
         <IconButton size="small" onClick={onBack}>
-          <ArrowBackIcon sx={{ fontSize: 18, color: d3roPalette.text.secondary }} />
+          <ArrowLeft size={18} style={{ color: d3roPalette.text.secondary }} />
         </IconButton>
 
         {editingTitle ? (
@@ -251,7 +248,7 @@ export function MeetingDetailTabs({
               autoFocus
             />
             <IconButton size="small" onClick={handleSaveTitle}>
-              <CheckIcon sx={{ fontSize: 16, color: d3roPalette.accent.amber }} />
+              <Check size={16} style={{ color: d3roPalette.accent.amber }} />
             </IconButton>
           </Box>
         ) : (
@@ -264,7 +261,7 @@ export function MeetingDetailTabs({
                 size="small"
                 onClick={() => { setEditingTitle(true); setTitleDraft(detail.title ?? '') }}
               >
-                <EditIcon sx={{ fontSize: 15, color: d3roPalette.text.inactive }} />
+                <Pencil size={15} style={{ color: d3roPalette.text.inactive }} />
               </IconButton>
             </Tooltip>
           </>
@@ -303,7 +300,7 @@ export function MeetingDetailTabs({
             <Tab key={doc.id} label={doc.title ?? t('meeting.untitled')} />
           ))}
           <Tab
-            icon={<AddIcon sx={{ fontSize: 16 }} />}
+            icon={<Plus size={16} />}
             label={t('meeting.addDocument')}
             iconPosition="start"
             sx={{ minWidth: 120 }}
diff --git a/apps/desktop/src/renderer/components/meeting/TranscriptTab.tsx b/apps/desktop/src/renderer/components/meeting/TranscriptTab.tsx
index 591b27e..1537437 100644
--- a/apps/desktop/src/renderer/components/meeting/TranscriptTab.tsx
+++ b/apps/desktop/src/renderer/components/meeting/TranscriptTab.tsx
@@ -8,9 +8,7 @@ import { PhysicalButton } from '@d3ro/ui/components/ds'
 import { PhosphorText } from '@d3ro/ui/components/ds'
 import { d3roPalette, d3roFontMono, d3roTypo } from '@d3ro/ui/theme'
 import { useI18n } from '@d3ro/i18n'
-import FileDownloadIcon from '@mui/icons-material/FileDownload'
-import AutoFixHighIcon from '@mui/icons-material/AutoFixHigh'
-import RecordVoiceOverIcon from '@mui/icons-material/RecordVoiceOver'
+import { Download, WandSparkles, Speech } from 'lucide-react'
 
 interface TranscriptTabProps {
   sessionId: string
@@ -129,7 +127,7 @@ export function TranscriptTab({
             disabled={polishing || diarizing}
             sx={{ height: 30, fontSize: d3roTypo.engrave.size }}
           >
-            <AutoFixHighIcon sx={{ fontSize: 13, mr: 0.5 }} />
+            <WandSparkles size={13} style={{ marginRight: 4 }} />
             {polishing ? t('meeting.polishing') : t('meeting.polish')}
           </PhysicalButton>
           {onDiarize && (
@@ -139,7 +137,7 @@ export function TranscriptTab({
               disabled={polishing || diarizing}
               sx={{ height: 30, fontSize: d3roTypo.engrave.size }}
             >
-              <RecordVoiceOverIcon sx={{ fontSize: 13, mr: 0.5 }} />
+              <Speech size={13} style={{ marginRight: 4 }} />
               {diarizing ? t('meeting.diarizing') : t('meeting.diarize')}
             </PhysicalButton>
           )}
@@ -148,7 +146,7 @@ export function TranscriptTab({
             onClick={handleDownloadTxt}
             sx={{ height: 30, fontSize: d3roTypo.engrave.size }}
           >
-            <FileDownloadIcon sx={{ fontSize: 13, mr: 0.5 }} />
+            <Download size={13} style={{ marginRight: 4 }} />
             {t('meeting.downloadTranscript')}
           </PhysicalButton>
         </Box>
diff --git a/apps/desktop/src/renderer/components/shared/HistoryEntryCard.tsx b/apps/desktop/src/renderer/components/shared/HistoryEntryCard.tsx
index ddf276b..00e96c0 100644
--- a/apps/desktop/src/renderer/components/shared/HistoryEntryCard.tsx
+++ b/apps/desktop/src/renderer/components/shared/HistoryEntryCard.tsx
@@ -4,12 +4,7 @@
 
 import { useState, useEffect, useCallback } from 'react'
 import { Box, IconButton, Tooltip, Chip } from '@mui/material'
-import ContentCopyIcon from '@mui/icons-material/ContentCopy'
-import DeleteIcon from '@mui/icons-material/Delete'
-import LocalOfferIcon from '@mui/icons-material/LocalOffer'
-import CloseIcon from '@mui/icons-material/Close'
-import SummarizeIcon from '@mui/icons-material/Summarize'
-import ExpandMoreIcon from '@mui/icons-material/ExpandMore'
+import { Copy, Trash2, Tag, X, ScrollText, ChevronDown } from 'lucide-react'
 import { MetalCard, Led } from '@d3ro/ui/components/ds'
 import { d3roPalette, d3roFontMono, d3roTypo, d3roRadius } from '@d3ro/ui/theme'
 import { useI18n } from '@d3ro/i18n'
@@ -149,7 +144,7 @@ export function HistoryEntryCard({ entry, onCopy, onDelete, showTags = false, on
             <span>{entry.mode.toUpperCase()}</span>
             {hasSummary && (
               <Chip
-                icon={<SummarizeIcon sx={{ fontSize: '12px !important' }} />}
+                icon={<ScrollText size={12} />}
                 label={t('meetingSummary.title')}
                 size="small"
                 onClick={handleToggleSummary}
@@ -176,7 +171,7 @@ export function HistoryEntryCard({ entry, onCopy, onDelete, showTags = false, on
                   size="small"
                   onClick={() => onTagClick?.(tag.tag)}
                   onDelete={() => handleRemoveTag(tag.tag)}
-                  deleteIcon={<CloseIcon sx={{ fontSize: '12px !important' }} />}
+                  deleteIcon={<X size={12} />}
                   sx={{
                     height: 20,
                     fontFamily: d3roFontMono,
@@ -219,7 +214,7 @@ export function HistoryEntryCard({ entry, onCopy, onDelete, showTags = false, on
                     onClick={() => setShowTagInput(true)}
                     sx={{ p: 0.25, color: d3roPalette.text.muted, '&:hover': { color: d3roPalette.accent.amber } }}
                   >
-                    <LocalOfferIcon sx={{ fontSize: 14 }} />
+                    <Tag size={14} />
                   </IconButton>
                 </Tooltip>
               )}
@@ -234,7 +229,7 @@ export function HistoryEntryCard({ entry, onCopy, onDelete, showTags = false, on
                 onClick={() => onCopy(displayText)}
                 sx={{ color: d3roPalette.text.inactive, '&:hover': { color: d3roPalette.accent.amber } }}
               >
-                <ContentCopyIcon sx={{ fontSize: 16 }} />
+                <Copy size={16} />
               </IconButton>
             </Tooltip>
           )}
@@ -245,7 +240,7 @@ export function HistoryEntryCard({ entry, onCopy, onDelete, showTags = false, on
                 onClick={() => onDelete(entry.id)}
                 sx={{ color: d3roPalette.text.inactive, '&:hover': { color: d3roPalette.tag.red } }}
               >
-                <DeleteIcon sx={{ fontSize: 16 }} />
+                <Trash2 size={16} />
               </IconButton>
             </Tooltip>
           )}
@@ -290,7 +285,7 @@ export function HistoryEntryCard({ entry, onCopy, onDelete, showTags = false, on
               <Box sx={{ display: 'flex', gap: 1, mt: 1 }}>
                 <Tooltip title={t('meetingSummary.exportMarkdown')} arrow>
                   <IconButton size="small" onClick={handleExportSummary} sx={{ color: d3roPalette.text.inactive, '&:hover': { color: d3roPalette.accent.amber } }}>
-                    <SummarizeIcon sx={{ fontSize: 14 }} />
+                    <ScrollText size={14} />
                   </IconButton>
                 </Tooltip>
               </Box>
@@ -324,7 +319,7 @@ export function HistoryEntryCard({ entry, onCopy, onDelete, showTags = false, on
           sx={{ mt: 1, textAlign: 'center', cursor: 'pointer', color: d3roPalette.text.muted, '&:hover': { color: d3roPalette.accent.amber } }}
           onClick={handleToggleSummary}
         >
-          <ExpandMoreIcon sx={{ fontSize: 16 }} />
+          <ChevronDown size={16} />
         </Box>
       )}
     </MetalCard>
diff --git a/apps/desktop/src/renderer/components/shared/SearchInput.tsx b/apps/desktop/src/renderer/components/shared/SearchInput.tsx
index 462860a..77dd892 100644
--- a/apps/desktop/src/renderer/components/shared/SearchInput.tsx
+++ b/apps/desktop/src/renderer/components/shared/SearchInput.tsx
@@ -2,7 +2,7 @@
 // 공유: 모노 폰트 검색 입력 필드
 
 import { TextField, InputAdornment } from '@mui/material'
-import SearchIcon from '@mui/icons-material/Search'
+import { Search } from 'lucide-react'
 import { d3roPalette, d3roFontMono, d3roTypo } from '@d3ro/ui/theme'
 
 interface SearchInputProps {
@@ -30,7 +30,7 @@ export function SearchInput({ value, onChange, placeholder }: SearchInputProps):
         input: {
           startAdornment: (
             <InputAdornment position="start">
-              <SearchIcon sx={{ color: d3roPalette.text.inactive, fontSize: 18 }} />
+              <Search size={18} style={{ color: d3roPalette.text.inactive }} />
             </InputAdornment>
           ),
         },
diff --git a/apps/desktop/src/renderer/components/voice-conversation/VoiceRecordingPanel.tsx b/apps/desktop/src/renderer/components/voice-conversation/VoiceRecordingPanel.tsx
index afbcc59..111ce00 100644
--- a/apps/desktop/src/renderer/components/voice-conversation/VoiceRecordingPanel.tsx
+++ b/apps/desktop/src/renderer/components/voice-conversation/VoiceRecordingPanel.tsx
@@ -1,34 +1,20 @@
 // src/renderer/components/voice-conversation/VoiceRecordingPanel.tsx
-// Phase 5 Part 6: Voice Conversation 몰입 녹음 패널
-// recording-tip 팝업의 9바 waveform (cos 분포, 100ms, smoothing)을 React로 포팅.
-// 기존 구현: src/renderer/popups/recording-tip/script.js (Vanilla JS, 팝업 전용)
-// 스펙: docs/design/03-db-and-ui.md:428+
+// Voice Conversation 몰입 녹음 패널 (리디자인 v2)
+// 기존 9바 DOM waveform을 DS의 GradientWave(canvas 스펙트럼 웨이브)로 교체.
 //
 // AudioLevelSource:
 //  - VoiceConversationService가 listening 상태에서만 AUDIO_LEVEL 채널로 forwarding.
 //  - level 값은 0.0~1.0. 구독자가 없는 thinking/speaking에는 Panel 자체가 언마운트되므로
 //    useEffect cleanup으로 subscription이 자동 해제됨.
+//  - 레벨 스무딩/유휴 진동은 GradientWave 내부에서 처리하므로 여기서는 raw level만 전달.
 
 import { useEffect, useRef, useState } from 'react'
 import { Box } from '@mui/material'
-import { Led, PhosphorText } from '@d3ro/ui/components/ds'
+import { GradientWave, Led, PhosphorText } from '@d3ro/ui/components/ds'
 import { d3roPalette, d3roFontMono } from '@d3ro/ui/theme'
 import { useI18n } from '@d3ro/i18n'
 
-// ── Waveform 상수 (recording-tip/script.js 수치 그대로) ──
-const BAR_COUNT = 9
-const UPDATE_INTERVAL = 100
-const MIN_HEIGHT = 2
-const MAX_HEIGHT = 28
-const SMOOTHING = 0.5
-const RANDOM_FACTOR = 0.35
-
-/** 코사인 분포 가중치 (중앙이 가장 높음). 설계서 03. */
-const weights: readonly number[] = Array.from({ length: BAR_COUNT }, (_, i) => {
-  const center = (BAR_COUNT - 1) / 2
-  const normalized = (i - center) / center
-  return Math.cos((normalized * Math.PI) / 2)
-})
+const WAVE_HEIGHT = 48
 
 function formatDuration(ms: number): string {
   const elapsed = Math.floor(ms / 1000)
@@ -39,59 +25,34 @@ function formatDuration(ms: number): string {
 
 /**
  * Voice Conversation이 listening 상태일 때만 렌더되는 몰입 녹음 패널.
- * - 9바 phosphor waveform (audio-level 기반)
+ * - GradientWave 스펙트럼 웨이브 (audio-level 기반, 유휴 애니메이션 내장)
  * - REC LED + elapsed 타이머
  * - "SPEAK NOW · PRESS ⏹ TO SEND" 힌트 (i18n)
  */
 export function VoiceRecordingPanel(): React.ReactElement {
   const { t } = useI18n()
-  const [heights, setHeights] = useState<number[]>(() =>
-    new Array(BAR_COUNT).fill(MIN_HEIGHT),
-  )
+  const [audioLevel, setAudioLevel] = useState(0)
   const [elapsedMs, setElapsedMs] = useState(0)
-
-  const heightsRef = useRef<number[]>(new Array(BAR_COUNT).fill(MIN_HEIGHT))
-  const audioLevelRef = useRef(0)
   const startedAtRef = useRef<number>(Date.now())
 
   // audio-level 구독 (VoiceConversationService → AUDIO_LEVEL)
   useEffect(() => {
     const unsubscribe = window.electronAPI.voiceConversation.onAudioLevel((e) => {
-      audioLevelRef.current = e.level
+      setAudioLevel(e.level)
     })
     return unsubscribe
   }, [])
 
-  // 9바 애니메이션 루프 (100ms interval)
+  // 경과 시간 타이머
   useEffect(() => {
     startedAtRef.current = Date.now()
-    heightsRef.current = new Array(BAR_COUNT).fill(MIN_HEIGHT)
-    audioLevelRef.current = 0
-
-    const animInterval = window.setInterval(() => {
-      const level = audioLevelRef.current
-      // 최소 진동: audioLevel이 0이어도 바가 미세하게 움직여 "살아있음" 표현
-      const effectiveLevel = Math.max(0.08, level)
-      const next = new Array(BAR_COUNT).fill(MIN_HEIGHT) as number[]
-      for (let i = 0; i < BAR_COUNT; i++) {
-        const baseTarget = effectiveLevel * MAX_HEIGHT * weights[i]
-        const randomized = baseTarget * (1 + (Math.random() - 0.5) * 2 * RANDOM_FACTOR)
-        const target = Math.max(MIN_HEIGHT, Math.min(MAX_HEIGHT, randomized))
-        // 스무딩 보간
-        const prev = heightsRef.current[i]
-        const smoothed = prev + (target - prev) * SMOOTHING
-        heightsRef.current[i] = smoothed
-        next[i] = Math.round(smoothed)
-      }
-      setHeights(next)
-    }, UPDATE_INTERVAL)
+    setElapsedMs(0)
 
     const durationInterval = window.setInterval(() => {
       setElapsedMs(Date.now() - startedAtRef.current)
     }, 500)
 
     return () => {
-      window.clearInterval(animInterval)
       window.clearInterval(durationInterval)
     }
   }, [])
@@ -111,7 +72,7 @@ export function VoiceRecordingPanel(): React.ReactElement {
       {/* REC LED + 타이머 */}
       <Box sx={{ display: 'flex', alignItems: 'center', gap: 1.5 }}>
         <Led color="red" pulse size={10} />
-        <PhosphorText variant="label" sx={{ color: d3roPalette.accent.amber }}>
+        <PhosphorText variant="label" sx={{ color: d3roPalette.accent.main }}>
           {t('conversation.state.recording')}
         </PhosphorText>
         <Box
@@ -119,7 +80,7 @@ export function VoiceRecordingPanel(): React.ReactElement {
             ml: 1,
             fontFamily: d3roFontMono,
             fontSize: 16,
-            color: d3roPalette.accent.amber,
+            color: d3roPalette.accent.light,
             fontVariantNumeric: 'tabular-nums',
             minWidth: 40,
             textAlign: 'left',
@@ -129,30 +90,27 @@ export function VoiceRecordingPanel(): React.ReactElement {
         </Box>
       </Box>
 
-      {/* 9바 waveform */}
+      {/* 그라디언트 스펙트럼 웨이브 */}
       <Box
         sx={{
-          display: 'flex',
-          alignItems: 'center',
-          justifyContent: 'center',
-          gap: '4px',
-          height: `${MAX_HEIGHT + 4}px`,
+          width: '100%',
+          maxWidth: 320,
+          px: 2,
+          py: 1,
+          borderRadius: 2,
+          border: `1px solid ${d3roPalette.glass.hairline}`,
+          bgcolor: d3roPalette.glass.surface,
         }}
         aria-hidden
       >
-        {heights.map((h, i) => (
-          <Box
-            key={i}
-            sx={{
-              width: '4px',
-              height: `${h}px`,
-              bgcolor: d3roPalette.accent.amber,
-              borderRadius: '2px',
-              transition: 'height 100ms ease-out',
-              boxShadow: `0 0 6px ${d3roPalette.accent.amberGlow}`,
-            }}
-          />
-        ))}
+        <GradientWave
+          audioLevel={audioLevel}
+          idleAmplitude={0.2}
+          barWidth={3}
+          barGap={3}
+          glow={8}
+          height={WAVE_HEIGHT}
+        />
       </Box>
 
       {/* 힌트 */}
diff --git a/apps/desktop/src/renderer/pages/CommandsPage.tsx b/apps/desktop/src/renderer/pages/CommandsPage.tsx
index 82b15f9..5699752 100644
--- a/apps/desktop/src/renderer/pages/CommandsPage.tsx
+++ b/apps/desktop/src/renderer/pages/CommandsPage.tsx
@@ -4,12 +4,7 @@
 
 import { useState, useEffect, useCallback } from 'react'
 import { Box, Button, IconButton, Dialog, DialogTitle, DialogContent, DialogActions, TextField, Chip, Select, MenuItem, FormControl, InputLabel } from '@mui/material'
-import AddIcon from '@mui/icons-material/Add'
-import DeleteIcon from '@mui/icons-material/Delete'
-import EditIcon from '@mui/icons-material/Edit'
-import CheckCircleIcon from '@mui/icons-material/CheckCircle'
-import PlayArrowIcon from '@mui/icons-material/PlayArrow'
-import LinkIcon from '@mui/icons-material/Link'
+import { Plus, Trash2, Pencil, CircleCheck, Play, Link } from 'lucide-react'
 import { MetalCard, PhosphorText, Led, ScreenPanel } from '@d3ro/ui/components/ds'
 import { PageHeader, EmptyStateCard } from '../components/shared'
 import { isImeComposingEvent } from '../utils/keyboard'
@@ -131,7 +126,7 @@ export function CommandsPage(): React.ReactElement {
         title={t('commands.title').toUpperCase()}
         count={t('commands.count', { count: instructions.length }).toUpperCase()}
         action={
-          <Button variant="contained" startIcon={<AddIcon />} onClick={openAdd} size="small">
+          <Button variant="contained" startIcon={<Plus size={16} />} onClick={openAdd} size="small">
             {t('commands.add').toUpperCase()}
           </Button>
         }
@@ -183,7 +178,7 @@ export function CommandsPage(): React.ReactElement {
                     <Box sx={{ display: 'flex', alignItems: 'center', justifyContent: 'space-between' }}>
                       <Box sx={{ display: 'flex', alignItems: 'center', gap: 1.5, flex: 1 }}>
                         {isActive ? (
-                          <CheckCircleIcon sx={{ fontSize: 16, color: d3roPalette.accent.amber }} />
+                          <CircleCheck size={16} style={{ color: d3roPalette.accent.amber }} />
                         ) : (
                           <Led color={inst.isBuiltin ? 'amber' : 'green'} size={6} />
                         )}
@@ -210,7 +205,7 @@ export function CommandsPage(): React.ReactElement {
                           onClick={() => openEdit(inst)}
                           sx={{ color: d3roPalette.text.inactive, '&:hover': { color: d3roPalette.accent.amber } }}
                         >
-                          <EditIcon sx={{ fontSize: 16 }} />
+                          <Pencil size={16} />
                         </IconButton>
                         {!inst.isBuiltin && (
                           <IconButton
@@ -218,7 +213,7 @@ export function CommandsPage(): React.ReactElement {
                             onClick={() => handleDelete(inst.id)}
                             sx={{ color: d3roPalette.text.inactive, '&:hover': { color: d3roPalette.tag.red } }}
                           >
-                            <DeleteIcon sx={{ fontSize: 16 }} />
+                            <Trash2 size={16} />
                           </IconButton>
                         )}
                       </Box>
@@ -360,7 +355,7 @@ function VoiceKeywordsSection({ instructions }: { instructions: CustomInstructio
                       onClick={() => { setEditingRule(rule.instructionId); setKeywordInput('') }}
                       sx={{ p: 0.25, color: d3roPalette.text.muted, '&:hover': { color: d3roPalette.accent.amber } }}
                     >
-                      <AddIcon sx={{ fontSize: 14 }} />
+                      <Plus size={14} />
                     </IconButton>
                   )}
                 </Box>
@@ -456,7 +451,7 @@ function ChainSection({ instructions }: { instructions: CustomInstruction[] }):
           {t('chain.title').toUpperCase()}
         </PhosphorText>
         <Box sx={{ flex: 1, height: '1px', bgcolor: d3roPalette.border.subtle }} />
-        <Button variant="outlined" startIcon={<LinkIcon />} onClick={openAdd} size="small" sx={{ fontSize: d3roTypo.micro.size }}>
+        <Button variant="outlined" startIcon={<Link size={16} />} onClick={openAdd} size="small" sx={{ fontSize: d3roTypo.micro.size }}>
           {t('chain.add').toUpperCase()}
         </Button>
       </Box>
@@ -497,15 +492,15 @@ function ChainSection({ instructions }: { instructions: CustomInstruction[] }):
                 <Box sx={{ display: 'flex', gap: 0.5 }}>
                   <IconButton size="small" onClick={() => handleExecute(chain.id)}
                     sx={{ color: d3roPalette.text.inactive, '&:hover': { color: d3roPalette.tag.green } }}>
-                    <PlayArrowIcon sx={{ fontSize: 16 }} />
+                    <Play size={16} />
                   </IconButton>
                   <IconButton size="small" onClick={() => openEdit(chain)}
                     sx={{ color: d3roPalette.text.inactive, '&:hover': { color: d3roPalette.accent.amber } }}>
-                    <EditIcon sx={{ fontSize: 16 }} />
+                    <Pencil size={16} />
                   </IconButton>
                   <IconButton size="small" onClick={() => handleDelete(chain.id)}
                     sx={{ color: d3roPalette.text.inactive, '&:hover': { color: d3roPalette.tag.red } }}>
-                    <DeleteIcon sx={{ fontSize: 16 }} />
+                    <Trash2 size={16} />
                   </IconButton>
                 </Box>
               </Box>
@@ -563,12 +558,12 @@ function ChainSection({ instructions }: { instructions: CustomInstruction[] }):
               )}
               <IconButton size="small" onClick={() => removeStep(idx)} disabled={formSteps.length <= 1}
                 sx={{ color: d3roPalette.text.inactive, '&:hover': { color: d3roPalette.tag.red } }}>
-                <DeleteIcon sx={{ fontSize: 16 }} />
+                <Trash2 size={16} />
               </IconButton>
             </Box>
           ))}
 
-          <Button onClick={addStep} startIcon={<AddIcon />} size="small" sx={{ mt: 1 }}>
+          <Button onClick={addStep} startIcon={<Plus size={16} />} size="small" sx={{ mt: 1 }}>
             {t('chain.addStep')}
           </Button>
         </DialogContent>
diff --git a/apps/desktop/src/renderer/pages/DictionaryPage.tsx b/apps/desktop/src/renderer/pages/DictionaryPage.tsx
index d0b8b4c..936fee7 100644
--- a/apps/desktop/src/renderer/pages/DictionaryPage.tsx
+++ b/apps/desktop/src/renderer/pages/DictionaryPage.tsx
@@ -3,9 +3,7 @@
 
 import { useState, useEffect, useCallback } from 'react'
 import { Box, TextField, Button, IconButton, Dialog, DialogTitle, DialogContent, DialogActions } from '@mui/material'
-import AddIcon from '@mui/icons-material/Add'
-import DeleteIcon from '@mui/icons-material/Delete'
-import EditIcon from '@mui/icons-material/Edit'
+import { Plus, Trash2, Pencil } from 'lucide-react'
 import { MetalCard, PhosphorText } from '@d3ro/ui/components/ds'
 import { PageHeader, SearchInput, EmptyStateCard } from '../components/shared'
 import { d3roPalette, d3roFontMono, d3roTypo } from '@d3ro/ui/theme'
@@ -73,7 +71,7 @@ export function DictionaryPage(): React.ReactElement {
         title={t('dictionary.title').toUpperCase()}
         count={t('dictionary.words', { count: data?.total ?? 0 }).toUpperCase()}
         action={
-          <Button variant="contained" startIcon={<AddIcon />} onClick={openAdd} size="small">
+          <Button variant="contained" startIcon={<Plus size={16} />} onClick={openAdd} size="small">
             {t('dictionary.add').toUpperCase()}
           </Button>
         }
@@ -114,11 +112,11 @@ export function DictionaryPage(): React.ReactElement {
                 <Box sx={{ display: 'flex', gap: 0.5 }}>
                   <IconButton size="small" onClick={() => openEdit(entry)}
                     sx={{ color: d3roPalette.text.inactive, '&:hover': { color: d3roPalette.accent.amber } }}>
-                    <EditIcon sx={{ fontSize: 16 }} />
+                    <Pencil size={16} />
                   </IconButton>
                   <IconButton size="small" onClick={() => { window.electronAPI.dictionary.delete({ id: entry.id }); loadData() }}
                     sx={{ color: d3roPalette.text.inactive, '&:hover': { color: d3roPalette.tag.red } }}>
-                    <DeleteIcon sx={{ fontSize: 16 }} />
+                    <Trash2 size={16} />
                   </IconButton>
                 </Box>
               </Box>
diff --git a/apps/desktop/src/renderer/pages/HistoryPage.tsx b/apps/desktop/src/renderer/pages/HistoryPage.tsx
index 9bb2563..97eb46b 100644
--- a/apps/desktop/src/renderer/pages/HistoryPage.tsx
+++ b/apps/desktop/src/renderer/pages/HistoryPage.tsx
@@ -4,7 +4,7 @@
 
 import { useState, useEffect, useCallback, useMemo } from 'react'
 import { Box, Chip, IconButton, Tooltip } from '@mui/material'
-import FileDownloadIcon from '@mui/icons-material/FileDownload'
+import { Download } from 'lucide-react'
 import { PhosphorText } from '@d3ro/ui/components/ds'
 import { d3roPalette, d3roTypo, d3roFontMono, d3roRadius } from '@d3ro/ui/theme'
 import { useI18n } from '@d3ro/i18n'
@@ -96,7 +96,7 @@ export function HistoryPage(): React.ReactElement {
                 onClick={handleExport}
                 sx={{ color: d3roPalette.text.inactive, '&:hover': { color: d3roPalette.accent.amber } }}
               >
-                <FileDownloadIcon sx={{ fontSize: 18 }} />
+                <Download size={18} />
               </IconButton>
             </Tooltip>
             <PhosphorText variant="meta" sx={{ color: d3roPalette.text.dimLabel }}>
diff --git a/apps/desktop/src/renderer/pages/KnowledgeBasePage.tsx b/apps/desktop/src/renderer/pages/KnowledgeBasePage.tsx
index 3bf904b..56c0333 100644
--- a/apps/desktop/src/renderer/pages/KnowledgeBasePage.tsx
+++ b/apps/desktop/src/renderer/pages/KnowledgeBasePage.tsx
@@ -4,12 +4,7 @@
 
 import { useState, useEffect, useCallback } from 'react'
 import { Box, TextField, IconButton, Tooltip, LinearProgress } from '@mui/material'
-import AddIcon from '@mui/icons-material/Add'
-import DeleteIcon from '@mui/icons-material/Delete'
-import RefreshIcon from '@mui/icons-material/Refresh'
-import SearchIcon from '@mui/icons-material/Search'
-import SendIcon from '@mui/icons-material/Send'
-import DescriptionIcon from '@mui/icons-material/Description'
+import { Plus, Trash2, RefreshCw, Search, Send, FileText } from 'lucide-react'
 import { MetalCard, PhosphorText, Led, PhysicalButton, ScreenPanel } from '@d3ro/ui/components/ds'
 import { PageHeader, EmptyStateCard } from '../components/shared'
 import { isImeComposingEvent } from '../utils/keyboard'
@@ -96,7 +91,7 @@ export function KnowledgeBasePage(): React.ReactElement {
         title={t('rag.title').toUpperCase()}
         action={
           <PhysicalButton size="small" onClick={handleAddDocument} disabled={adding}>
-            <AddIcon sx={{ fontSize: 14, mr: 0.5 }} /> {adding ? t('rag.adding') : t('rag.addDocument')}
+            <Plus size={14} style={{ marginRight: 4 }} /> {adding ? t('rag.adding') : t('rag.addDocument')}
           </PhysicalButton>
         }
       />
@@ -160,7 +155,7 @@ export function KnowledgeBasePage(): React.ReactElement {
           {documents.map((doc) => (
             <MetalCard key={doc.id}>
               <Box sx={{ display: 'flex', alignItems: 'center', gap: 2 }}>
-                <DescriptionIcon sx={{ fontSize: 20, color: d3roPalette.text.inactive }} />
+                <FileText size={20} style={{ color: d3roPalette.text.inactive }} />
                 <Box sx={{ flex: 1 }}>
                   <PhosphorText variant="body">{doc.fileName}</PhosphorText>
                   <Box sx={{ display: 'flex', alignItems: 'center', gap: 0.5, mt: 0.25 }}>
@@ -176,13 +171,13 @@ export function KnowledgeBasePage(): React.ReactElement {
                 <Tooltip title={t('rag.reindex')}>
                   <IconButton size="small" onClick={() => handleReindex(doc.id)}
                     sx={{ color: d3roPalette.text.inactive, '&:hover': { color: d3roPalette.accent.amber } }}>
-                    <RefreshIcon sx={{ fontSize: 16 }} />
+                    <RefreshCw size={16} />
                   </IconButton>
                 </Tooltip>
                 <Tooltip title={t('common.delete')}>
                   <IconButton size="small" onClick={() => handleRemoveDocument(doc.id)}
                     sx={{ color: d3roPalette.text.inactive, '&:hover': { color: d3roPalette.tag.red } }}>
-                    <DeleteIcon sx={{ fontSize: 16 }} />
+                    <Trash2 size={16} />
                   </IconButton>
                 </Tooltip>
               </Box>
@@ -198,7 +193,7 @@ export function KnowledgeBasePage(): React.ReactElement {
 
       <MetalCard>
         <Box sx={{ display: 'flex', alignItems: 'center', gap: 1 }}>
-          <SearchIcon sx={{ fontSize: 20, color: d3roPalette.text.inactive }} />
+          <Search size={20} style={{ color: d3roPalette.text.inactive }} />
           <TextField
             value={query}
             onChange={(e) => setQuery(e.target.value)}
@@ -219,7 +214,7 @@ export function KnowledgeBasePage(): React.ReactElement {
           />
           <IconButton onClick={handleQuery} disabled={!query.trim() || querying}
             sx={{ color: query.trim() ? d3roPalette.accent.amber : d3roPalette.text.inactive }}>
-            <SendIcon sx={{ fontSize: 20 }} />
+            <Send size={20} />
           </IconButton>
         </Box>
       </MetalCard>
diff --git a/apps/desktop/src/renderer/pages/MeetingModePage.tsx b/apps/desktop/src/renderer/pages/MeetingModePage.tsx
index 7a846f0..ca88567 100644
--- a/apps/desktop/src/renderer/pages/MeetingModePage.tsx
+++ b/apps/desktop/src/renderer/pages/MeetingModePage.tsx
@@ -9,9 +9,7 @@ import {
   Snackbar,
   Alert,
 } from '@mui/material'
-import AddIcon from '@mui/icons-material/Add'
-import StopIcon from '@mui/icons-material/Stop'
-import FiberManualRecordIcon from '@mui/icons-material/FiberManualRecord'
+import { Plus, Square, Circle } from 'lucide-react'
 import { MetalCard, PhosphorText, Led, PhysicalButton, ScreenPanel } from '@d3ro/ui/components/ds'
 import { MeetingDetailTabs } from '../components/meeting/MeetingDetailTabs'
 import { EditableSegment } from '../components/meeting/EditableSegment'
@@ -229,7 +227,7 @@ export function MeetingModePage(): React.ReactElement {
           count={totalSessions > 0 ? t('meeting.sessions', { count: totalSessions }) : undefined}
           action={
             <PhysicalButton size="small" onClick={handleStartRecording}>
-              <AddIcon sx={{ fontSize: 16, mr: 0.5 }} />
+              <Plus size={16} style={{ marginRight: 4 }} />
               {t('meeting.newMeeting')}
             </PhysicalButton>
           }
@@ -344,7 +342,7 @@ export function MeetingModePage(): React.ReactElement {
         {/* 상단 바 */}
         <Box sx={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center', mb: 2 }}>
           <Box sx={{ display: 'flex', alignItems: 'center', gap: 2 }}>
-            <FiberManualRecordIcon sx={{ color: d3roPalette.tag.red, fontSize: 16, animation: 'pulse 1s infinite' }} />
+            <Circle size={16} fill="currentColor" style={{ color: d3roPalette.tag.red, animation: 'pulse 1s infinite' }} />
             <PhosphorText variant="label" sx={{ fontFamily: d3roFontMono }}>
               {formatTime(elapsedMs)}
             </PhosphorText>
@@ -354,7 +352,7 @@ export function MeetingModePage(): React.ReactElement {
           </Box>
           {!isProcessing && (
             <PhysicalButton size="small" color="error" onClick={handleStopRecording}>
-              <StopIcon sx={{ fontSize: 16, mr: 0.5 }} />
+              <Square size={16} style={{ marginRight: 4 }} />
               {t('meeting.stopRecording')}
             </PhysicalButton>
           )}
diff --git a/apps/desktop/src/renderer/pages/VoiceConversationPage.tsx b/apps/desktop/src/renderer/pages/VoiceConversationPage.tsx
index 7eb4ded..1dd28da 100644
--- a/apps/desktop/src/renderer/pages/VoiceConversationPage.tsx
+++ b/apps/desktop/src/renderer/pages/VoiceConversationPage.tsx
@@ -4,11 +4,7 @@
 
 import { useState, useEffect, useCallback, useRef } from 'react'
 import { Alert, Box, IconButton, Snackbar, TextField, Tooltip } from '@mui/material'
-import MicIcon from '@mui/icons-material/Mic'
-import StopIcon from '@mui/icons-material/Stop'
-import SendIcon from '@mui/icons-material/Send'
-import DeleteSweepIcon from '@mui/icons-material/DeleteSweep'
-import CancelIcon from '@mui/icons-material/Cancel'
+import { Mic, Square, Send, Trash2, XCircle } from 'lucide-react'
 import { MetalCard, PhosphorText, Led, PhysicalButton, ScreenPanel, InstrumentPanel } from '@d3ro/ui/components/ds'
 import { PageHeader } from '../components/shared'
 import { VoiceRecordingPanel } from '../components/voice-conversation/VoiceRecordingPanel'
@@ -248,7 +244,7 @@ export function VoiceConversationPage(): React.ReactElement {
             {messages.length > 0 && (
               <Tooltip title={t('conversation.clearHistory')}>
                 <IconButton size="small" onClick={handleClearHistory} sx={{ color: d3roPalette.text.inactive }}>
-                  <DeleteSweepIcon sx={{ fontSize: 18 }} />
+                  <Trash2 size={18} />
                 </IconButton>
               </Tooltip>
             )}
@@ -378,7 +374,7 @@ export function VoiceConversationPage(): React.ReactElement {
           {/* 녹음 버튼 */}
           {!isActive ? (
             <PhysicalButton onClick={handleStartSession} sx={{ minWidth: 48, px: 2 }}>
-              <MicIcon sx={{ fontSize: 20 }} />
+              <Mic size={20} />
             </PhysicalButton>
           ) : state === 'listening' ? (
             <PhysicalButton
@@ -386,15 +382,15 @@ export function VoiceConversationPage(): React.ReactElement {
               onClick={isRealtime ? handleStopSession : handleFinishListening}
               sx={{ minWidth: 48, px: 2 }}
             >
-              <StopIcon sx={{ fontSize: 20 }} />
+              <Square size={20} />
             </PhysicalButton>
           ) : state === 'thinking' || state === 'speaking' ? (
             <PhysicalButton onClick={handleCancelResponse} sx={{ minWidth: 48, px: 2 }}>
-              <CancelIcon sx={{ fontSize: 20 }} />
+              <XCircle size={20} />
             </PhysicalButton>
           ) : (
             <PhysicalButton onClick={handleFinishListening} sx={{ minWidth: 48, px: 2 }}>
-              <MicIcon sx={{ fontSize: 20 }} />
+              <Mic size={20} />
             </PhysicalButton>
           )}
 
@@ -439,7 +435,7 @@ export function VoiceConversationPage(): React.ReactElement {
                   : d3roPalette.text.inactive,
               }}
             >
-              <SendIcon sx={{ fontSize: 20 }} />
+              <Send size={20} />
             </IconButton>
           )}
 
diff --git a/apps/desktop/src/renderer/popups/caption-overlay/style.css b/apps/desktop/src/renderer/popups/caption-overlay/style.css
index 81ad4b7..5184bb6 100644
--- a/apps/desktop/src/renderer/popups/caption-overlay/style.css
+++ b/apps/desktop/src/renderer/popups/caption-overlay/style.css
@@ -3,14 +3,14 @@
  * WindowManager.insertCSS()가 :root에 테마 변수를 주입하면 자동 전환.
  */
 
-/* ── 다크 테마 fallback 기본값 (:root) ─────────────────────────── */
+/* ── Midnight(다크) fallback 기본값 (:root) ────────────────────── */
 :root {
-  --d3-accent-main: #f25b29;
-  --d3-accent-glow: rgba(242, 91, 41, 0.6);
-  --d3-accent-glow-dim: rgba(242, 91, 41, 0.3);
-  --d3-accent-light: #ff8a65;
-  --d3-accent-light-glow: rgba(255, 138, 101, 0.7);
-  --d3-accent-light-glow-dim: rgba(255, 138, 101, 0.4);
+  --d3-accent-main: #3b82f6;
+  --d3-accent-glow: rgba(59, 130, 246, 0.6);
+  --d3-accent-glow-dim: rgba(59, 130, 246, 0.3);
+  --d3-accent-light: #60a5fa;
+  --d3-accent-light-glow: rgba(96, 165, 250, 0.7);
+  --d3-accent-light-glow-dim: rgba(96, 165, 250, 0.4);
 }
 
 * {
@@ -59,8 +59,10 @@ html, body {
     0 0 8px var(--d3-accent-glow),
     0 0 16px var(--d3-accent-glow-dim),
     0 1px 3px rgba(0, 0, 0, 0.8);
-  background: rgba(0, 0, 0, 0.92);
-  border-radius: 6px;
+  background: rgba(13, 20, 38, 0.92);
+  /* 헤어라인은 box-shadow inset — border는 라인 높이에 영향을 주므로 금지 */
+  box-shadow: inset 0 0 0 1px rgba(148, 180, 255, 0.1);
+  border-radius: 8px;
   padding: 4px 12px;
   opacity: 1;
   transition: opacity 0.5s ease-out;
diff --git a/apps/desktop/src/renderer/popups/command-popup/style.css b/apps/desktop/src/renderer/popups/command-popup/style.css
index 6dfa83d..1e05413 100644
--- a/apps/desktop/src/renderer/popups/command-popup/style.css
+++ b/apps/desktop/src/renderer/popups/command-popup/style.css
@@ -3,19 +3,19 @@
  * WindowManager.insertCSS()가 :root에 테마 변수를 주입하면 자동 전환.
  */
 
-/* ── 다크 테마 fallback 기본값 (:root) ─────────────────────────── */
+/* ── Midnight(다크) fallback 기본값 (:root) ────────────────────── */
 :root {
-  --d3-bg-card: #242427;
-  --d3-border-default: rgba(255, 255, 255, 0.08);
-  --d3-border-subtle: rgba(255, 255, 255, 0.06);
-  --d3-text-primary: rgba(255, 255, 255, 0.87);
-  --d3-text-inactive: rgba(255, 255, 255, 0.3);
-  --d3-text-muted: rgba(255, 255, 255, 0.25);
-  --d3-text-dimLabel: #5c2615;
-  --d3-text-secondary: rgba(255, 255, 255, 0.35);
-  --d3-accent-main: #f25b29;
-  --d3-accent-dim: rgba(242, 91, 41, 0.08);
-  --d3-shadow-popup: 0 8px 32px rgba(0, 0, 0, 0.5);
+  --d3-bg-card: rgba(17, 26, 48, 0.85);
+  --d3-border-default: rgba(148, 180, 255, 0.12);
+  --d3-border-subtle: rgba(148, 180, 255, 0.07);
+  --d3-text-primary: #eef2fb;
+  --d3-text-inactive: #7385ab;
+  --d3-text-muted: rgba(147, 164, 200, 0.45);
+  --d3-text-dimLabel: #4e5f85;
+  --d3-text-secondary: #93a4c8;
+  --d3-accent-main: #3b82f6;
+  --d3-accent-dim: rgba(59, 130, 246, 0.14);
+  --d3-shadow-popup: 0 12px 40px rgba(3, 7, 18, 0.5);
 }
 
 * {
@@ -39,8 +39,9 @@ body {
 .command-popup {
   background: var(--d3-bg-card);
   border: 1px solid var(--d3-border-default);
-  border-radius: 12px;
+  border-radius: 14px;
   padding: 6px;
+  backdrop-filter: blur(24px);
   box-shadow: var(--d3-shadow-popup);
   opacity: 0;
   transform: translateY(4px) scale(0.98);
diff --git a/apps/desktop/src/renderer/popups/history-popup/style.css b/apps/desktop/src/renderer/popups/history-popup/style.css
index cbc8e11..8a3d9bc 100644
--- a/apps/desktop/src/renderer/popups/history-popup/style.css
+++ b/apps/desktop/src/renderer/popups/history-popup/style.css
@@ -3,16 +3,16 @@
  * WindowManager.insertCSS()가 :root에 테마 변수를 주입하면 자동 전환.
  */
 
-/* ── 다크 테마 fallback 기본값 (:root) ─────────────────────────── */
+/* ── Midnight(다크) fallback 기본값 (:root) ────────────────────── */
 :root {
-  --d3-bg-card: #242427;
-  --d3-border-default: rgba(255, 255, 255, 0.08);
-  --d3-border-subtle: rgba(255, 255, 255, 0.06);
-  --d3-text-primary: rgba(255, 255, 255, 0.87);
-  --d3-text-inactive: rgba(255, 255, 255, 0.3);
-  --d3-text-muted: rgba(255, 255, 255, 0.25);
-  --d3-accent-main: #f25b29;
-  --d3-shadow-popup: 0 8px 32px rgba(0, 0, 0, 0.5);
+  --d3-bg-card: rgba(17, 26, 48, 0.85);
+  --d3-border-default: rgba(148, 180, 255, 0.12);
+  --d3-border-subtle: rgba(148, 180, 255, 0.07);
+  --d3-text-primary: #eef2fb;
+  --d3-text-inactive: #7385ab;
+  --d3-text-muted: rgba(147, 164, 200, 0.45);
+  --d3-accent-main: #3b82f6;
+  --d3-shadow-popup: 0 12px 40px rgba(3, 7, 18, 0.5);
 }
 
 * {
@@ -36,8 +36,9 @@ body {
 .history-popup {
   background: var(--d3-bg-card);
   border: 1px solid var(--d3-border-default);
-  border-radius: 12px;
+  border-radius: 14px;
   padding: 6px;
+  backdrop-filter: blur(24px);
   box-shadow: var(--d3-shadow-popup);
   opacity: 0;
   transform: translateY(4px) scale(0.98);
diff --git a/apps/desktop/src/renderer/popups/recording-tip/style.css b/apps/desktop/src/renderer/popups/recording-tip/style.css
index daf788f..6bfd71a 100644
--- a/apps/desktop/src/renderer/popups/recording-tip/style.css
+++ b/apps/desktop/src/renderer/popups/recording-tip/style.css
@@ -3,13 +3,15 @@
  * WindowManager.insertCSS()가 :root에 테마 변수를 주입하면 자동 전환.
  */
 
-/* ── 다크 테마 fallback 기본값 (:root) ─────────────────────────── */
+/* ── Midnight(다크) fallback 기본값 (:root) ────────────────────── */
 :root {
-  --d3-bg-tip: rgba(0, 0, 0, 0.85);
-  --d3-text-primary: rgba(255, 255, 255, 0.87);
-  --d3-text-secondary: rgba(255, 255, 255, 0.6);
-  --d3-accent-main: #f25b29;
-  --d3-border-strong: rgba(255, 255, 255, 0.15);
+  --d3-bg-tip: rgba(17, 26, 48, 0.85);
+  --d3-text-primary: #eef2fb;
+  --d3-text-secondary: #93a4c8;
+  --d3-accent-main: #3b82f6;
+  --d3-border-default: rgba(148, 180, 255, 0.12);
+  --d3-border-strong: rgba(148, 180, 255, 0.2);
+  --d3-shadow-popup: 0 12px 40px rgba(3, 7, 18, 0.5);
 }
 
 * {
@@ -35,12 +37,14 @@ body {
 
 .recording-tip {
   background: var(--d3-bg-tip);
-  border-radius: 8px;
+  border: 1px solid var(--d3-border-default);
+  border-radius: 14px;
   padding: 8px 12px;
   display: flex;
   align-items: center;
   gap: 8px;
-  backdrop-filter: blur(10px);
+  backdrop-filter: blur(24px);
+  box-shadow: var(--d3-shadow-popup);
   transition: opacity 150ms ease-in-out;
   cursor: pointer;
 }
@@ -60,6 +64,17 @@ body {
   min-height: 2px;
 }
 
+/* 9바 시안→블루→퍼플 스펙트럼 (v2 Midnight — RAW.dark gradient.wave1~3 보간) */
+.wave-bar:nth-child(1) { background: #22d3ee; box-shadow: 0 0 6px rgba(34, 211, 238, 0.35); }
+.wave-bar:nth-child(2) { background: #28bef0; box-shadow: 0 0 6px rgba(40, 190, 240, 0.35); }
+.wave-bar:nth-child(3) { background: #2fa9f2; box-shadow: 0 0 6px rgba(47, 169, 242, 0.35); }
+.wave-bar:nth-child(4) { background: #3596f4; box-shadow: 0 0 6px rgba(53, 150, 244, 0.35); }
+.wave-bar:nth-child(5) { background: #3b82f6; box-shadow: 0 0 6px rgba(59, 130, 246, 0.35); }
+.wave-bar:nth-child(6) { background: #4f78f6; box-shadow: 0 0 6px rgba(79, 120, 246, 0.35); }
+.wave-bar:nth-child(7) { background: #636ff6; box-shadow: 0 0 6px rgba(99, 111, 246, 0.35); }
+.wave-bar:nth-child(8) { background: #7765f6; box-shadow: 0 0 6px rgba(119, 101, 246, 0.35); }
+.wave-bar:nth-child(9) { background: #8b5cf6; box-shadow: 0 0 6px rgba(139, 92, 246, 0.35); }
+
 .duration {
   color: var(--d3-text-primary);
   font-size: 13px;
diff --git a/apps/desktop/src/renderer/popups/result-popup/style.css b/apps/desktop/src/renderer/popups/result-popup/style.css
index 423b805..2cc38fb 100644
--- a/apps/desktop/src/renderer/popups/result-popup/style.css
+++ b/apps/desktop/src/renderer/popups/result-popup/style.css
@@ -4,15 +4,15 @@
  * WindowManager.insertCSS()가 :root에 테마 변수를 주입하면 자동 전환.
  */
 
-/* ── 다크 테마 fallback 기본값 (:root) ─────────────────────────── */
+/* ── Midnight(다크) fallback 기본값 (:root) ────────────────────── */
 :root {
-  --d3-bg-result: #1e1e1e;
-  --d3-border-result: rgba(255, 255, 255, 0.08);
-  --d3-text-result: rgba(255, 255, 255, 0.87);
-  --d3-action-btn: rgba(255, 255, 255, 0.4);
-  --d3-action-btn-hover-bg: rgba(255, 255, 255, 0.08);
-  --d3-action-btn-hover: rgba(255, 255, 255, 0.7);
-  --d3-shadow-popup: 0 8px 32px rgba(0, 0, 0, 0.5);
+  --d3-bg-result: rgba(17, 26, 48, 0.85);
+  --d3-border-result: rgba(148, 180, 255, 0.12);
+  --d3-text-result: #eef2fb;
+  --d3-action-btn: rgba(147, 164, 200, 0.7);
+  --d3-action-btn-hover-bg: rgba(148, 180, 255, 0.08);
+  --d3-action-btn-hover: #c9d5f2;
+  --d3-shadow-popup: 0 12px 40px rgba(3, 7, 18, 0.5);
 }
 
 * {
@@ -37,8 +37,9 @@ body {
 .result-popup {
   background: var(--d3-bg-result);
   border: 1px solid var(--d3-border-result);
-  border-radius: 12px;
+  border-radius: 14px;
   padding: 12px 16px;
+  backdrop-filter: blur(24px);
   box-shadow: var(--d3-shadow-popup);
   opacity: 0;
   transform: translateY(4px);
@@ -89,7 +90,7 @@ body {
 }
 
 .action-btn.copied {
-  color: #4caf50;
+  color: #34d399;
 }
 
 .hidden {
diff --git a/memory/project_status.md b/memory/project_status.md
index ac17d47..644418a 100644
--- a/memory/project_status.md
+++ b/memory/project_status.md
@@ -18,11 +18,12 @@
 - **StatusBar**: 브랜드+버전+모델 / 로컬 시간 시계
 - 검증: tsc 0, vitest 41/41, 실행 스크린샷으로 대시보드/히스토리/대화/회의/지식/설정 전 페이지 확인. 스크롤 시 폭 불변 확인. 상단 1px 잡티는 detached DevTools 겹침(앱 버그 아님)
 
-### 남은 마감(진행 중)
-1. 내부 페이지들의 @mui/icons-material → lucide-react 통일
-2. Vanilla 팝업 5종(recording-tip 등) 스타일 v2 정합
-3. VoiceRecordingPanel(대화 몰입 패널) → GradientWave 교체
-4. 라이트 테마 시각 검수, v0.2.0-alpha 릴리스
+### 마감 완료 (워크플로 8 에이전트 병렬)
+1. ✅ @mui/icons-material → lucide-react 전환 (23파일, 잔여 0 — 의존성 제거는 추후)
+2. ✅ Vanilla 팝업 5종 CSS v2 정합 (글래스 네이비 + 블루 액센트, var(--) 주입 구조 유지)
+3. ✅ VoiceRecordingPanel → GradientWave 교체
+4. 검증: tsc 0 / vitest 41/41 / 실화면 캡처 (Midnight·Nord 두 테마)
+5. 잔여(후속): 라이트 테마 정밀 검수, @mui/icons-material 의존성 package.json 제거, MetalDial(미사용) 정리, v0.2.0-alpha 릴리스
 
 ## 모델 현대화 트랙 (2026-07-21) — B 완료, A 완료(코드), C 완료(코드)