diff --git a/frontend/src/App.css b/frontend/src/App.css
index 147ff4f..243529d 100644
--- a/frontend/src/App.css
+++ b/frontend/src/App.css
@@ -29,7 +29,8 @@
 }
 
 /* ── Dark Theme: 도쿄 나이트 (THEME_SETTINGS.md §2.2) ───────────── */
-.app.dark {
+.app.dark,
+html.theme-dark {
   --bg:         #1a1b26;
   --bg1:        #1a1b26;
   --bg2:        #24283b;
@@ -48,7 +49,8 @@
 }
 
 /* ── Light Theme (THEME_SETTINGS.md §2.1) ──────────────────────── */
-.app.light {
+.app.light,
+html.theme-light {
   --bg:         #f5f5f5;
   --bg1:        #f5f5f5;
   --bg2:        #ffffff;
@@ -67,7 +69,8 @@
 }
 
 /* ── Blue Theme: 딥 네이비 (THEME_SETTINGS.md §2.3) ─────────────── */
-.app.blue {
+.app.blue,
+html.theme-blue {
   --bg:         #0c1929;
   --bg1:        #0c1929;
   --bg2:        #15273d;
@@ -9412,32 +9415,32 @@
 }
 
 /* ── 라이트 테마 오버라이드 ── */
-.app.light .tam-modal {
+html.theme-light .tam-modal {
   background: #ffffff;
   border-color: rgba(25,118,210,0.35);
   color: #212121;
   box-shadow: 0 20px 60px rgba(0,0,0,0.18), 0 0 40px rgba(25,118,210,0.08);
 }
-.app.light .tam-header         { background: #f5f7fa; border-color: rgba(0,0,0,0.1); }
-.app.light .tam-header-title   { color: #1a237e; }
-.app.light .tam-header-ko      { color: #546e7a; }
-.app.light .tam-close          { color: #78909c; }
-.app.light .tam-close:hover    { background: rgba(0,0,0,0.06); color: #37474f; }
-.app.light .tam-price-section  { border-color: rgba(0,0,0,0.08); }
-.app.light .tam-market-name    { color: #212121; }
-.app.light .tam-price-time     { color: #78909c; }
-.app.light .tam-strategy-card  { background: #f5f7fa; border-color: rgba(0,0,0,0.1); }
-.app.light .tam-strategy-label { color: #78909c; }
-.app.light .tam-strategy-val   { color: #212121; }
-.app.light .tam-strategy-exec-val { color: #546e7a; }
-.app.light .tam-field-label    { color: #546e7a; }
-.app.light .tam-pct-btn2       { background: #f0f3f8; border-color: rgba(0,0,0,0.12); color: #546e7a; }
-.app.light .tam-pct-btn2:hover { background: #e3eaf6; }
-.app.light .tam-price-input,
-.app.light .tam-memo-input     { background: #f5f7fa; border-color: rgba(0,0,0,0.14); color: #212121; }
-.app.light .tam-market-btn     { background: #f0f3f8; border-color: rgba(0,0,0,0.12); color: #546e7a; }
-.app.light .tam-market-btn:hover { background: #e3eaf6; color: #212121; }
-.app.light .tam-disclaimer     { color: #90a4ae; }
+html.theme-light .tam-header         { background: #f5f7fa; border-color: rgba(0,0,0,0.1); }
+html.theme-light .tam-header-title   { color: #1a237e; }
+html.theme-light .tam-header-ko      { color: #546e7a; }
+html.theme-light .tam-close          { color: #78909c; }
+html.theme-light .tam-close:hover    { background: rgba(0,0,0,0.06); color: #37474f; }
+html.theme-light .tam-price-section  { border-color: rgba(0,0,0,0.08); }
+html.theme-light .tam-market-name    { color: #212121; }
+html.theme-light .tam-price-time     { color: #78909c; }
+html.theme-light .tam-strategy-card  { background: #f5f7fa; border-color: rgba(0,0,0,0.1); }
+html.theme-light .tam-strategy-label { color: #78909c; }
+html.theme-light .tam-strategy-val   { color: #212121; }
+html.theme-light .tam-strategy-exec-val { color: #546e7a; }
+html.theme-light .tam-field-label    { color: #546e7a; }
+html.theme-light .tam-pct-btn2       { background: #f0f3f8; border-color: rgba(0,0,0,0.12); color: #546e7a; }
+html.theme-light .tam-pct-btn2:hover { background: #e3eaf6; }
+html.theme-light .tam-price-input,
+html.theme-light .tam-memo-input     { background: #f5f7fa; border-color: rgba(0,0,0,0.14); color: #212121; }
+html.theme-light .tam-market-btn     { background: #f0f3f8; border-color: rgba(0,0,0,0.12); color: #546e7a; }
+html.theme-light .tam-market-btn:hover { background: #e3eaf6; color: #212121; }
+html.theme-light .tam-disclaimer     { color: #90a4ae; }
 
 /* ═══════════════════════════════════════════════════════════════════════════
    Trade signal notifications (tsn- / tnl- / tmb-notify-)
diff --git a/frontend/src/App.tsx b/frontend/src/App.tsx
index a37a868..6d0c9ad 100644
--- a/frontend/src/App.tsx
+++ b/frontend/src/App.tsx
@@ -88,6 +88,7 @@ import LoginModal from './components/LoginModal';
 import SplashScreen from './components/SplashScreen';
 import { getAuthSession, setAuthSession, clearAuthSession, type AuthSession } from './utils/auth';
 import { isAppEntered, setAppEntered, clearAppEntered } from './utils/appEntry';
+import { syncDocumentTheme } from './utils/documentTheme';
 import { useMenuPermissions, invalidateMenuPermissionsCache } from './hooks/useMenuPermissions';
 import { firstAllowedTopMenu, normalizeRole } from './utils/permissions';
 import { clearAdminUnlock } from './utils/adminUnlock';
@@ -991,6 +992,11 @@ function App() {
     saveState({ symbol, timeframe, chartType, theme, indicators, watchlist, alertPrices: alerts.map(a => a.price) });
   }, [symbol, timeframe, chartType, theme, indicators, watchlist, alerts]);
 
+  // body 포털(알림 팝업 등) 테마 CSS 변수 동기화
+  useEffect(() => {
+    syncDocumentTheme(theme);
+  }, [theme]);
+
   // ── DB 워크스페이스 동기화 ─────────────────────────────────────────────
   const workspaceState = useMemo(() => ({
     layoutId: layoutDef.id,
@@ -1483,6 +1489,7 @@ function App() {
 
       {menuPage === 'paper' && (
         <PaperTradingPage
+          theme={theme}
           tickers={marketTickers}
           refreshKey={paperRefreshKey}
           defaultMarket={symbol}
diff --git a/frontend/src/components/PaperTradingPage.tsx b/frontend/src/components/PaperTradingPage.tsx
index 1c21bd0..494eff6 100644
--- a/frontend/src/components/PaperTradingPage.tsx
+++ b/frontend/src/components/PaperTradingPage.tsx
@@ -17,6 +17,7 @@ import type { TradeOrderFillRequest } from '../types';
 import PaperMiniChart from './paper/PaperMiniChart';
 import PaperIndicatorPanel from './paper/PaperIndicatorPanel';
 import PaperCompactOrderbook from './paper/PaperCompactOrderbook';
+import type { Theme } from '../types';
 
 const COIN_COLORS: Record<string, string> = {
   BTC: '#f7931a', ETH: '#627eea', XRP: '#23292f', SOL: '#9945ff',
@@ -28,6 +29,7 @@ type HistoryTab = 'open' | 'recent';
 type RightTab = 'trade' | 'orderbook';
 
 interface Props {
+  theme?: Theme;
   tickers?: Map<string, { tradePrice: number | null }>;
   onGoChart?: (market: string) => void;
   refreshKey?: number;
@@ -66,6 +68,7 @@ function coinIcon(code: string): string {
 }
 
 const PaperTradingPage: React.FC<Props> = ({
+  theme = 'dark',
   tickers,
   refreshKey = 0,
   defaultMarket = 'KRW-BTC',
@@ -264,7 +267,7 @@ const PaperTradingPage: React.FC<Props> = ({
 
         <main className="ptd-col ptd-col--center">
           <div className="ptd-card ptd-chart-card">
-            <PaperMiniChart market={selectedMarket} />
+            <PaperMiniChart market={selectedMarket} theme={theme} />
             <PaperIndicatorPanel market={selectedMarket} />
           </div>
         </main>
diff --git a/frontend/src/components/TradeSignalSnackbar.tsx b/frontend/src/components/TradeSignalSnackbar.tsx
index 941d79f..aaf82b5 100644
--- a/frontend/src/components/TradeSignalSnackbar.tsx
+++ b/frontend/src/components/TradeSignalSnackbar.tsx
@@ -93,8 +93,17 @@ export const TradeSignalSnackbar: React.FC<Props> = ({
     setPageIndex(p => Math.min(totalPages - 1, p + 1));
   }, [totalPages]);
 
+  const dismissAll = useCallback(() => {
+    dismissAllToasts();
+    setPageIndex(0);
+    positionsRef.current = {};
+  }, [dismissAllToasts]);
+
   const dismissCurrentPage = useCallback(() => {
     dismissToasts(pageItems.map(i => i.id));
+    positionsRef.current = Object.fromEntries(
+      Object.entries(positionsRef.current).filter(([id]) => !pageItems.some(p => p.id === id)),
+    );
   }, [dismissToasts, pageItems]);
 
   const handleDragStart = useCallback((e: React.PointerEvent, key: string) => {
@@ -219,7 +228,7 @@ export const TradeSignalSnackbar: React.FC<Props> = ({
           <button
             type="button"
             className="tsn-dismiss-all"
-            onClick={dismissAllToasts}
+            onClick={dismissAll}
             title={`대기 중인 알림 ${toastNotifications.length}건 전체 닫기`}
           >
             전체닫기 ({toastNotifications.length})
diff --git a/frontend/src/components/backtest/BacktestAssetChart.tsx b/frontend/src/components/backtest/BacktestAssetChart.tsx
index 84dfcfb..2b5f18b 100644
--- a/frontend/src/components/backtest/BacktestAssetChart.tsx
+++ b/frontend/src/components/backtest/BacktestAssetChart.tsx
@@ -99,10 +99,10 @@ const BacktestAssetChart: React.FC<Props> = memo(({ curve, markers }) => {
 
         {[0.25, 0.5, 0.75].map(r => {
           const y = pad.t + innerH * (1 - r);
-          return <line key={r} x1={pad.l} y1={y} x2={W - pad.r} y2={y} stroke="rgba(201,162,39,0.07)" strokeWidth="1" />;
+          return <line key={r} x1={pad.l} y1={y} x2={W - pad.r} y2={y} className="btd-chart-grid" />;
         })}
 
-        <text x={pad.l - 8} y={pad.t - 6} textAnchor="start" fill="#6272a4" fontSize="8">자본금</text>
+        <text x={pad.l - 8} y={pad.t - 6} textAnchor="start" className="btd-chart-label" fontSize="8">자본금</text>
 
         {chart.yTicks.map(v => (
           <text
@@ -111,7 +111,7 @@ const BacktestAssetChart: React.FC<Props> = memo(({ curve, markers }) => {
             y={chart.toY(v)}
             textAnchor="end"
             dominantBaseline="middle"
-            fill="#6272a4"
+            className="btd-chart-label"
             fontSize="8.5"
           >
             {fmtY(v)}
@@ -124,7 +124,7 @@ const BacktestAssetChart: React.FC<Props> = memo(({ curve, markers }) => {
             key={i}
             d={seg.d}
             fill="none"
-            stroke={seg.up ? '#22c55e' : '#ef4444'}
+            className={seg.up ? 'btd-chart-line-up' : 'btd-chart-line-down'}
             strokeWidth="2"
             strokeLinecap="round"
             strokeLinejoin="round"
@@ -152,7 +152,7 @@ const BacktestAssetChart: React.FC<Props> = memo(({ curve, markers }) => {
         ))}
 
         {chart.xLabels.map((l, i) => (
-          <text key={i} x={l.x} y={H - 5} textAnchor="middle" fill="#6272a4" fontSize="8">
+          <text key={i} x={l.x} y={H - 5} textAnchor="middle" className="btd-chart-label" fontSize="8">
             {l.label}
           </text>
         ))}
diff --git a/frontend/src/components/paper/PaperMiniChart.tsx b/frontend/src/components/paper/PaperMiniChart.tsx
index 30f7d5b..69fe171 100644
--- a/frontend/src/components/paper/PaperMiniChart.tsx
+++ b/frontend/src/components/paper/PaperMiniChart.tsx
@@ -1,44 +1,84 @@
-import React, { useEffect, useRef, useState } from 'react';
+import React, { useCallback, useEffect, useRef, useState } from 'react';
 import { createChart, CandlestickSeries, type IChartApi, type ISeriesApi, type Time, ColorType } from 'lightweight-charts';
-import type { Timeframe } from '../../types';
+import type { Theme, Timeframe } from '../../types';
 import { fetchUpbitCandles } from '../../utils/upbitApi';
 
 const TF_OPTIONS: Timeframe[] = ['1m', '5m', '15m', '1h', '4h', '1D'];
 
 interface Props {
   market: string;
+  theme?: Theme;
   wsLabel?: string;
 }
 
-const PaperMiniChart: React.FC<Props> = ({ market, wsLabel = 'WebSocket <100ms' }) => {
+function readChartTheme(container: HTMLElement | null) {
+  const root = container?.closest('.app') ?? document.documentElement;
+  const s = getComputedStyle(root);
+  const v = (name: string, fallback: string) => s.getPropertyValue(name).trim() || fallback;
+  return {
+    bgColor: v('--bg3', '#1f2335'),
+    textColor: v('--text', '#c0caf5'),
+    gridColor: v('--sep', 'rgba(122, 162, 247, 0.15)'),
+    borderColor: v('--border', 'rgba(122, 162, 247, 0.15)'),
+    upColor: v('--up', '#ff6b6b'),
+    downColor: v('--down', '#4dabf7'),
+  };
+}
+
+const PaperMiniChart: React.FC<Props> = ({ market, theme = 'dark', wsLabel = 'WebSocket <100ms' }) => {
   const containerRef = useRef<HTMLDivElement>(null);
   const chartRef = useRef<IChartApi | null>(null);
   const seriesRef = useRef<ISeriesApi<'Candlestick'> | null>(null);
   const [timeframe, setTimeframe] = useState<Timeframe>('1h');
   const [loading, setLoading] = useState(true);
 
-  useEffect(() => {
-    if (!containerRef.current) return undefined;
-    const chart = createChart(containerRef.current, {
+  const applyTheme = useCallback((chart: IChartApi, series: ISeriesApi<'Candlestick'>) => {
+    const t = readChartTheme(containerRef.current);
+    chart.applyOptions({
       layout: {
-        background: { type: ColorType.Solid, color: '#121520' },
-        textColor: '#9aa5ce',
+        background: { type: ColorType.Solid, color: t.bgColor },
+        textColor: t.textColor,
       },
       grid: {
-        vertLines: { color: 'rgba(122,162,247,0.06)' },
-        horzLines: { color: 'rgba(122,162,247,0.06)' },
+        vertLines: { color: t.gridColor },
+        horzLines: { color: t.gridColor },
       },
-      rightPriceScale: { borderColor: 'rgba(122,162,247,0.12)' },
-      timeScale: { borderColor: 'rgba(122,162,247,0.12)' },
+      rightPriceScale: { borderColor: t.borderColor },
+      timeScale: { borderColor: t.borderColor },
+    });
+    series.applyOptions({
+      upColor: t.upColor,
+      downColor: t.downColor,
+      borderUpColor: t.upColor,
+      borderDownColor: t.downColor,
+      wickUpColor: t.upColor,
+      wickDownColor: t.downColor,
+    });
+  }, []);
+
+  useEffect(() => {
+    if (!containerRef.current) return undefined;
+    const t = readChartTheme(containerRef.current);
+    const chart = createChart(containerRef.current, {
+      layout: {
+        background: { type: ColorType.Solid, color: t.bgColor },
+        textColor: t.textColor,
+      },
+      grid: {
+        vertLines: { color: t.gridColor },
+        horzLines: { color: t.gridColor },
+      },
+      rightPriceScale: { borderColor: t.borderColor },
+      timeScale: { borderColor: t.borderColor },
       crosshair: { mode: 1 },
     });
     const series = chart.addSeries(CandlestickSeries, {
-      upColor: '#22c55e',
-      downColor: '#ef4444',
-      borderUpColor: '#22c55e',
-      borderDownColor: '#ef4444',
-      wickUpColor: '#22c55e',
-      wickDownColor: '#ef4444',
+      upColor: t.upColor,
+      downColor: t.downColor,
+      borderUpColor: t.upColor,
+      borderDownColor: t.downColor,
+      wickUpColor: t.upColor,
+      wickDownColor: t.downColor,
     });
     chartRef.current = chart;
     seriesRef.current = series;
@@ -61,6 +101,12 @@ const PaperMiniChart: React.FC<Props> = ({ market, wsLabel = 'WebSocket <100ms'
     };
   }, []);
 
+  useEffect(() => {
+    if (chartRef.current && seriesRef.current) {
+      applyTheme(chartRef.current, seriesRef.current);
+    }
+  }, [theme, applyTheme]);
+
   useEffect(() => {
     let cancelled = false;
     setLoading(true);
diff --git a/frontend/src/contexts/TradeNotificationContext.tsx b/frontend/src/contexts/TradeNotificationContext.tsx
index bbae9a3..cfa5e37 100644
--- a/frontend/src/contexts/TradeNotificationContext.tsx
+++ b/frontend/src/contexts/TradeNotificationContext.tsx
@@ -10,6 +10,7 @@ import React, {
   useContext,
   useEffect,
   useMemo,
+  useRef,
   useState,
 } from 'react';
 import type { TradeSignalInfo } from '../components/TradeAlertModal';
@@ -121,6 +122,8 @@ export const TradeNotificationProvider: React.FC<ProviderProps> = ({
   const alertSoundId = normalizeTradeAlertSoundId(soundId) as TradeAlertSoundId;
   const [readIds, setReadIds] = useState<Set<string>>(() => loadReadIds());
   const [toastNotifications, setToastNotifications] = useState<TradeNotificationItem[]>([]);
+  const toastNotificationsRef = useRef(toastNotifications);
+  toastNotificationsRef.current = toastNotifications;
   const [allNotifications, setAllNotifications] = useState<TradeNotificationItem[]>([]);
   const [detailSignal, setDetailSignal] = useState<TradeSignalInfo | null>(null);
   const [detailCentered, setDetailCentered] = useState(false);
@@ -247,20 +250,10 @@ export const TradeNotificationProvider: React.FC<ProviderProps> = ({
   }, []);
 
   const dismissAllToasts = useCallback(() => {
-    setToastNotifications(prev => {
-      const ids = prev.map(n => n.id);
-      setReadIds(r => {
-        const next = new Set(r);
-        ids.forEach(i => next.add(i));
-        saveReadIds(next);
-        return next;
-      });
-      setAllNotifications(all =>
-        all.map(n => (ids.includes(n.id) ? { ...n, isRead: true } : n)),
-      );
-      return [];
-    });
-  }, []);
+    const ids = toastNotificationsRef.current.map(n => n.id);
+    if (ids.length === 0) return;
+    dismissToasts(ids);
+  }, [dismissToasts]);
 
   const markAllAsRead = useCallback(() => {
     setAllNotifications(prev => {
diff --git a/frontend/src/styles/appPopup.css b/frontend/src/styles/appPopup.css
index 64dd121..31ac4dd 100644
--- a/frontend/src/styles/appPopup.css
+++ b/frontend/src/styles/appPopup.css
@@ -287,28 +287,44 @@
   background: rgba(0, 0, 0, 0.45);
 }
 
-/* 라이트 테마 */
+/* 라이트 테마 — body 포털(html.theme-light) · 앱 내부(.app.light) 공통 */
+html.theme-light .app-popup-shell,
 .app.light .app-popup-shell,
+html.theme-light .tam-modal,
 .app.light .tam-modal,
+html.theme-light .lsp-modal,
 .app.light .lsp-modal,
+html.theme-light .gc-popup-panel,
 .app.light .gc-popup-panel,
+html.theme-light .bts-modal,
 .app.light .bts-modal,
+html.theme-light .brm-modal,
 .app.light .brm-modal,
+html.theme-light .ism-dialog,
 .app.light .ism-dialog,
+html.theme-light .login-modal,
 .app.light .login-modal {
   background: #ffffff;
   border-color: rgba(25, 118, 210, 0.35);
   color: #212121;
   box-shadow: 0 20px 60px rgba(0, 0, 0, 0.18), 0 0 40px rgba(25, 118, 210, 0.08);
 }
+html.theme-light .app-popup-header,
 .app.light .app-popup-header,
+html.theme-light .gc-popup-header,
 .app.light .gc-popup-header {
   background: linear-gradient(180deg, rgba(25, 118, 210, 0.1) 0%, #f5f7fa 100%);
   border-color: rgba(0, 0, 0, 0.1);
 }
+html.theme-light .app-popup-header-title,
 .app.light .app-popup-header-title,
+html.theme-light .gc-popup-title,
 .app.light .gc-popup-title { color: #1a237e; }
+html.theme-light .app-popup-header-ko,
 .app.light .app-popup-header-ko { color: #546e7a; }
+html.theme-light .app-popup-card,
 .app.light .app-popup-card { background: #f5f7fa; border-color: rgba(0, 0, 0, 0.1); }
+html.theme-light .app-popup-input,
 .app.light .app-popup-input,
+html.theme-light .app-popup-select,
 .app.light .app-popup-select { background: #f0f3f8; border-color: rgba(0, 0, 0, 0.12); color: #212121; }
diff --git a/frontend/src/styles/backtestDashboard.css b/frontend/src/styles/backtestDashboard.css
index 794bf77..0ee4728 100644
--- a/frontend/src/styles/backtestDashboard.css
+++ b/frontend/src/styles/backtestDashboard.css
@@ -1,14 +1,30 @@
-/* 백테스팅 대시보드 (btd-*) — 금색 포인트 다크 테마 */
+/* 백테스팅 대시보드 (btd-*) — 앱 테마 변수 + 금색 포인트 */
 
 .btd-page {
+  --btd-gold: #c9a227;
+  --btd-gold-light: #e8c547;
+  --btd-gold-dark: #b8860b;
+  --btd-gold-border: rgba(201, 162, 39, 0.18);
+  --btd-gold-border-strong: rgba(201, 162, 39, 0.35);
+  --btd-gold-bg: rgba(201, 162, 39, 0.08);
+  --btd-gold-bg-hover: rgba(201, 162, 39, 0.14);
+
   display: flex;
   height: calc(100vh - var(--tmb-h, 46px));
   overflow: hidden;
-  background: #0a0e14;
-  color: #c8d0e0;
+  background: var(--bg);
+  color: var(--text);
   font-family: var(--font, 'Noto Sans KR', sans-serif);
 }
 
+.app.light .btd-page,
+html.theme-light .btd-page {
+  --btd-gold-border: rgba(184, 134, 11, 0.28);
+  --btd-gold-border-strong: rgba(184, 134, 11, 0.45);
+  --btd-gold-bg: rgba(201, 162, 39, 0.1);
+  --btd-gold-bg-hover: rgba(201, 162, 39, 0.16);
+}
+
 /* ── 좌측 타임라인 사이드바 (~23%) ── */
 .btd-sidebar {
   width: 23%;
@@ -17,8 +33,8 @@
   flex-shrink: 0;
   display: flex;
   flex-direction: column;
-  border-right: 1px solid rgba(201, 162, 39, 0.15);
-  background: #0d1219;
+  border-right: 1px solid var(--btd-gold-border);
+  background: var(--bg2);
   overflow: hidden;
 }
 
@@ -27,7 +43,7 @@
   align-items: center;
   gap: 8px;
   padding: 12px 12px 10px;
-  border-bottom: 1px solid rgba(201, 162, 39, 0.12);
+  border-bottom: 1px solid var(--btd-gold-border);
   flex-shrink: 0;
 }
 
@@ -35,7 +51,7 @@
   width: 3px;
   height: 18px;
   border-radius: 2px;
-  background: linear-gradient(180deg, #e8c547, #b8860b);
+  background: linear-gradient(180deg, var(--btd-gold-light), var(--btd-gold-dark));
   flex-shrink: 0;
 }
 
@@ -44,7 +60,7 @@
   flex: 1;
   font-size: 13px;
   font-weight: 800;
-  color: #f0e6c8;
+  color: var(--text);
   letter-spacing: -0.2px;
 }
 
@@ -57,16 +73,16 @@
   width: 28px;
   height: 28px;
   border-radius: 6px;
-  border: 1px solid rgba(201, 162, 39, 0.2);
-  background: rgba(201, 162, 39, 0.06);
-  color: #c9a227;
+  border: 1px solid var(--btd-gold-border);
+  background: var(--btd-gold-bg);
+  color: var(--btd-gold);
   font-size: 13px;
   cursor: pointer;
   display: flex;
   align-items: center;
   justify-content: center;
 }
-.btd-icon-btn:hover:not(:disabled) { background: rgba(201, 162, 39, 0.14); }
+.btd-icon-btn:hover:not(:disabled) { background: var(--btd-gold-bg-hover); }
 .btd-icon-btn:disabled { opacity: 0.35; cursor: not-allowed; }
 .btd-icon-btn--danger { color: #ef4444; border-color: rgba(239, 68, 68, 0.3); }
 
@@ -78,7 +94,7 @@
   justify-content: center;
   padding: 24px;
   text-align: center;
-  color: #6272a4;
+  color: var(--text3);
   font-size: 12px;
   gap: 8px;
 }
@@ -121,32 +137,32 @@
   width: 10px;
   height: 10px;
   border-radius: 50%;
-  background: #1a2030;
+  background: var(--bg3);
   border: 2px solid rgba(201, 162, 39, 0.45);
   z-index: 1;
 }
 
 .btd-timeline-item--active .btd-timeline-node {
-  background: #c9a227;
-  border-color: #e8c547;
+  background: var(--btd-gold);
+  border-color: var(--btd-gold-light);
   box-shadow: 0 0 8px rgba(201, 162, 39, 0.5);
 }
 
 .btd-timeline-card {
-  background: #121820;
-  border: 1px solid rgba(201, 162, 39, 0.12);
+  background: var(--bg3);
+  border: 1px solid var(--btd-gold-border);
   border-radius: 8px;
   padding: 8px 10px;
   transition: border-color 0.15s, box-shadow 0.15s;
 }
 
 .btd-timeline-item:hover .btd-timeline-card {
-  border-color: rgba(201, 162, 39, 0.28);
+  border-color: var(--btd-gold-border-strong);
 }
 
 .btd-timeline-item--active .btd-timeline-card {
   border-color: rgba(201, 162, 39, 0.65);
-  box-shadow: 0 0 0 1px rgba(201, 162, 39, 0.2), 0 4px 16px rgba(0, 0, 0, 0.35);
+  box-shadow: 0 0 0 1px rgba(201, 162, 39, 0.2), 0 4px 16px rgba(0, 0, 0, 0.15);
 }
 
 .btd-timeline-top {
@@ -160,7 +176,7 @@
 .btd-timeline-name {
   font-size: 12px;
   font-weight: 700;
-  color: #eef2ff;
+  color: var(--text);
   line-height: 1.3;
 }
 
@@ -169,7 +185,7 @@
 .btd-timeline-date {
   display: block;
   font-size: 10px;
-  color: #6272a4;
+  color: var(--text3);
   margin-bottom: 6px;
 }
 
@@ -199,7 +215,7 @@
   overflow: hidden;
   display: flex;
   flex-direction: column;
-  background: #0a0e14;
+  background: var(--bg);
 }
 
 .btd-dashboard {
@@ -219,7 +235,7 @@
   align-items: center;
   justify-content: center;
   gap: 10px;
-  color: #6272a4;
+  color: var(--text3);
   font-size: 13px;
 }
 .btd-empty span { font-size: 48px; opacity: 0.35; }
@@ -237,7 +253,7 @@
   width: 4px;
   height: 16px;
   border-radius: 2px;
-  background: linear-gradient(180deg, #e8c547, #b8860b);
+  background: linear-gradient(180deg, var(--btd-gold-light), var(--btd-gold-dark));
   flex-shrink: 0;
 }
 
@@ -245,7 +261,7 @@
   margin: 0;
   font-size: 13px;
   font-weight: 800;
-  color: #f0e6c8;
+  color: var(--text);
   letter-spacing: -0.2px;
   line-height: 1.2;
 }
@@ -253,11 +269,10 @@
 .btd-section-sub {
   margin: 1px 0 0;
   font-size: 9px;
-  color: #6272a4;
+  color: var(--text3);
   font-weight: 500;
 }
 
-/* KPI ~18% | 차트 ~44% | 테이블 ~32% (헤더 포함) */
 .btd-section--kpi {
   flex: 0 0 auto;
 }
@@ -286,8 +301,8 @@
 }
 
 .btd-kpi-card {
-  background: #121820;
-  border: 1px solid rgba(201, 162, 39, 0.18);
+  background: var(--bg2);
+  border: 1px solid var(--btd-gold-border);
   border-radius: 10px;
   padding: 10px 14px;
   min-height: 0;
@@ -295,7 +310,7 @@
 
 .btd-kpi-label {
   font-size: 10px;
-  color: #9aa5ce;
+  color: var(--text2);
   margin-bottom: 4px;
   font-weight: 600;
 }
@@ -303,19 +318,19 @@
 .btd-kpi-value {
   font-size: 24px;
   font-weight: 900;
-  color: #fff;
+  color: var(--text);
   line-height: 1;
   letter-spacing: -0.5px;
 }
 .btd-kpi-value.up { color: #22c55e; }
 .btd-kpi-value.down { color: #ef4444; }
-.btd-kpi-value.gold { color: #c9a227; }
-.btd-kpi-value.neutral { color: #e2e8f0; }
+.btd-kpi-value.gold { color: var(--btd-gold); }
+.btd-kpi-value.neutral { color: var(--text2); }
 
 .btd-kpi-desc {
   margin: 6px 0 0;
   font-size: 9px;
-  color: #6272a4;
+  color: var(--text3);
   line-height: 1.3;
 }
 
@@ -329,7 +344,7 @@
 .btd-kpi-icon {
   font-size: 20px;
   opacity: 0.6;
-  color: #c9a227;
+  color: var(--btd-gold);
 }
 
 .btd-kpi-dual {
@@ -352,8 +367,8 @@
 .btd-chart-card {
   flex: 1;
   min-height: 0;
-  background: #121820;
-  border: 1px solid rgba(201, 162, 39, 0.18);
+  background: var(--bg2);
+  border: 1px solid var(--btd-gold-border);
   border-radius: 10px;
   padding: 4px 8px 2px;
   display: flex;
@@ -373,12 +388,24 @@
   display: block;
 }
 
+.btd-chart-grid {
+  stroke: var(--sep);
+  stroke-width: 1;
+}
+
+.btd-chart-label {
+  fill: var(--text3);
+}
+
+.btd-chart-line-up { stroke: #22c55e; }
+.btd-chart-line-down { stroke: #ef4444; }
+
 /* ── 거래 내역 테이블 ── */
 .btd-table-card {
   flex: 1;
   min-height: 0;
-  background: #121820;
-  border: 1px solid rgba(201, 162, 39, 0.18);
+  background: var(--bg2);
+  border: 1px solid var(--btd-gold-border);
   border-radius: 10px;
   overflow: hidden;
   display: flex;
@@ -399,7 +426,7 @@
 }
 
 .btd-table thead {
-  background: rgba(201, 162, 39, 0.1);
+  background: var(--btd-gold-bg);
   position: sticky;
   top: 0;
   z-index: 1;
@@ -410,19 +437,19 @@
   text-align: left;
   font-size: 10px;
   font-weight: 700;
-  color: #c9a227;
-  border-bottom: 1px solid rgba(201, 162, 39, 0.2);
+  color: var(--btd-gold);
+  border-bottom: 1px solid var(--btd-gold-border);
   white-space: nowrap;
 }
 
 .btd-table td {
   padding: 7px 12px;
-  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
-  color: #c8d0e0;
+  border-bottom: 1px solid var(--sep);
+  color: var(--text);
 }
 
 .btd-table tbody tr:hover td {
-  background: rgba(201, 162, 39, 0.04);
+  background: var(--btd-gold-bg);
 }
 
 .btd-table tbody tr:last-child td {
@@ -430,19 +457,19 @@
 }
 
 .btd-td-time {
-  color: #6272a4;
+  color: var(--text3);
   font-variant-numeric: tabular-nums;
   white-space: nowrap;
 }
 
-.btd-table td.buy { color: #3b82f6; font-weight: 700; }
-.btd-table td.sell { color: #ef4444; font-weight: 700; }
+.btd-table td.buy { color: var(--down, #3b82f6); font-weight: 700; }
+.btd-table td.sell { color: var(--up, #ef4444); font-weight: 700; }
 .btd-table td.up { color: #22c55e; font-weight: 700; }
 .btd-table td.down { color: #ef4444; font-weight: 700; }
 
 .btd-table-empty {
   text-align: center;
-  color: #6272a4;
+  color: var(--text3);
   padding: 24px !important;
 }
 
@@ -452,6 +479,11 @@
 
 @media (max-width: 860px) {
   .btd-page { flex-direction: column; height: auto; overflow: auto; }
-  .btd-sidebar { width: 100%; max-height: 240px; border-right: none; border-bottom: 1px solid rgba(201, 162, 39, 0.15); }
+  .btd-sidebar {
+    width: 100%;
+    max-height: 240px;
+    border-right: none;
+    border-bottom: 1px solid var(--btd-gold-border);
+  }
   .btd-kpi-grid { grid-template-columns: 1fr 1fr; }
 }
diff --git a/frontend/src/styles/paperDashboard.css b/frontend/src/styles/paperDashboard.css
index fe3e573..5c348e1 100644
--- a/frontend/src/styles/paperDashboard.css
+++ b/frontend/src/styles/paperDashboard.css
@@ -1,12 +1,12 @@
-/* 모의투자 대시보드 (ptd-) — 전체 화면 고정 레이아웃 */
+/* 모의투자 대시보드 (ptd-) — 전체 화면 고정 레이아웃, 앱 테마 변수 연동 */
 .ptd-page {
   flex: 1;
   min-height: 0;
   overflow: hidden;
   display: flex;
   flex-direction: column;
-  background: #0d1117;
-  color: #c0caf5;
+  background: var(--bg);
+  color: var(--text);
   padding: 8px 12px 10px;
   font-family: var(--font, 'Noto Sans KR', sans-serif);
 }
@@ -15,7 +15,7 @@
   align-items: center;
   justify-content: center;
   min-height: 320px;
-  color: #9aa5ce;
+  color: var(--text2);
 }
 
 .ptd-topbar {
@@ -26,18 +26,18 @@
   margin-bottom: 8px;
   flex-shrink: 0;
 }
-.ptd-title { margin: 0; font-size: 18px; font-weight: 800; color: #fff; }
+.ptd-title { margin: 0; font-size: 18px; font-weight: 800; color: var(--text); }
 .ptd-topbar-actions { display: flex; gap: 8px; flex-shrink: 0; }
 .ptd-btn {
   padding: 6px 10px;
   border-radius: 8px;
-  border: 1px solid rgba(122,162,247,0.2);
-  background: #1e222d;
-  color: #c0caf5;
+  border: 1px solid var(--border);
+  background: var(--bg2);
+  color: var(--text);
   font-size: 11px;
   cursor: pointer;
 }
-.ptd-btn:hover { background: #252a38; }
+.ptd-btn:hover { background: var(--bg3); }
 .ptd-btn--danger { border-color: rgba(239,68,68,0.4); color: #ef4444; }
 
 .ptd-banner {
@@ -68,13 +68,13 @@
   gap: 8px;
   padding: 8px 10px;
   border-radius: 10px;
-  background: #1e222d;
-  border: 1px solid rgba(122,162,247,0.12);
+  background: var(--bg2);
+  border: 1px solid var(--border);
 }
 .ptd-metric-icon { font-size: 16px; line-height: 1; }
-.ptd-metric-title { font-size: 10px; color: #6272a4; margin-bottom: 2px; }
-.ptd-metric-value { font-size: 17px; font-weight: 800; line-height: 1.1; }
-.ptd-metric-sub { font-size: 9px; color: #6272a4; margin-top: 2px; }
+.ptd-metric-title { font-size: 10px; color: var(--text3); margin-bottom: 2px; }
+.ptd-metric-value { font-size: 17px; font-weight: 800; line-height: 1.1; color: var(--text); }
+.ptd-metric-sub { font-size: 9px; color: var(--text3); margin-top: 2px; }
 .ptd-metric--up .ptd-metric-value { color: #22c55e; }
 .ptd-metric--down .ptd-metric-value { color: #ef4444; }
 
@@ -101,8 +101,8 @@
 .ptd-col--right { min-width: 0; }
 
 .ptd-card {
-  background: #1e222d;
-  border: 1px solid rgba(122,162,247,0.12);
+  background: var(--bg2);
+  border: 1px solid var(--border);
   border-radius: 10px;
   overflow: hidden;
   flex-shrink: 0;
@@ -111,22 +111,22 @@
   padding: 8px 10px 0;
   font-size: 11px;
   font-weight: 700;
-  color: #9aa5ce;
+  color: var(--text2);
 }
 .ptd-asset-card { padding-bottom: 8px; }
 .ptd-asset-total {
   padding: 4px 10px 0;
   font-size: 22px;
   font-weight: 800;
-  color: #fff;
+  color: var(--text);
 }
-.ptd-asset-total span { font-size: 12px; color: #6272a4; font-weight: 600; }
+.ptd-asset-total span { font-size: 12px; color: var(--text3); font-weight: 600; }
 .ptd-asset-ret {
   padding: 2px 10px 0;
   font-size: 18px;
   font-weight: 800;
 }
-.ptd-asset-sub { padding: 4px 10px 0; font-size: 10px; color: #6272a4; }
+.ptd-asset-sub { padding: 4px 10px 0; font-size: 10px; color: var(--text3); }
 
 .ptd-table {
   width: 100%;
@@ -136,12 +136,12 @@
 .ptd-table th, .ptd-table td {
   padding: 6px 8px;
   text-align: left;
-  border-bottom: 1px solid rgba(122,162,247,0.08);
+  border-bottom: 1px solid var(--sep);
 }
-.ptd-table th { color: #6272a4; font-weight: 600; }
+.ptd-table th { color: var(--text3); font-weight: 600; }
 .ptd-table tbody tr { cursor: pointer; }
-.ptd-table tbody tr:hover { background: rgba(63,126,245,0.06); }
-.ptd-row--sel { background: rgba(63,126,245,0.1); }
+.ptd-table tbody tr:hover { background: var(--bg3); }
+.ptd-row--sel { background: var(--bg3); }
 .ptd-coin {
   display: inline-flex;
   align-items: center;
@@ -154,8 +154,8 @@
   color: #fff;
   margin-right: 4px;
 }
-.ptd-muted { color: #6272a4; text-align: center; padding: 12px; font-size: 11px; }
-.ptd-time { color: #6272a4; white-space: nowrap; }
+.ptd-muted { color: var(--text3); text-align: center; padding: 12px; font-size: 11px; }
+.ptd-time { color: var(--text3); white-space: nowrap; }
 
 .ptd-donut-card { padding-bottom: 8px; }
 .ptd-donut-wrap {
@@ -175,20 +175,20 @@
   height: 44px;
   margin: 14px auto;
   border-radius: 50%;
-  background: #1e222d;
+  background: var(--bg2);
   display: flex;
   align-items: center;
   justify-content: center;
   font-size: 10px;
   font-weight: 700;
-  color: #c0caf5;
+  color: var(--text);
 }
 .ptd-donut-legend {
   list-style: none;
   margin: 0;
   padding: 0;
   font-size: 10px;
-  color: #9aa5ce;
+  color: var(--text2);
 }
 .ptd-donut-legend li { display: flex; align-items: center; gap: 6px; margin-bottom: 3px; }
 .ptd-dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }
@@ -215,7 +215,7 @@
   margin-bottom: 6px;
   flex-shrink: 0;
 }
-.ptd-chart-title { font-size: 12px; font-weight: 700; }
+.ptd-chart-title { font-size: 12px; font-weight: 700; color: var(--text); }
 .ptd-ws-badge {
   font-size: 9px;
   padding: 2px 6px;
@@ -235,7 +235,7 @@
   inset: 40% 0 auto;
   text-align: center;
   font-size: 11px;
-  color: #6272a4;
+  color: var(--text3);
   pointer-events: none;
 }
 .ptd-tf-row {
@@ -248,16 +248,16 @@
 .ptd-tf-btn {
   padding: 3px 7px;
   border-radius: 6px;
-  border: 1px solid rgba(122,162,247,0.15);
-  background: #121520;
-  color: #9aa5ce;
+  border: 1px solid var(--border);
+  background: var(--bg3);
+  color: var(--text2);
   font-size: 9px;
   cursor: pointer;
 }
 .ptd-tf-btn--active {
-  border-color: #3f7ef5;
-  color: #3f7ef5;
-  background: rgba(63,126,245,0.12);
+  border-color: var(--accent);
+  color: var(--accent);
+  background: var(--bg2);
 }
 
 .ptd-indicators {
@@ -265,16 +265,16 @@
   grid-template-columns: repeat(3, minmax(0, 1fr));
   gap: 6px;
   padding: 0 10px 8px;
-  border-top: 1px solid rgba(122,162,247,0.08);
+  border-top: 1px solid var(--sep);
   flex-shrink: 0;
 }
 .ptd-ind-panel {
-  background: #121520;
+  background: var(--bg3);
   border-radius: 8px;
   padding: 4px 6px;
   min-height: 52px;
 }
-.ptd-ind-label { font-size: 9px; color: #6272a4; margin-bottom: 2px; }
+.ptd-ind-label { font-size: 9px; color: var(--text3); margin-bottom: 2px; }
 .ptd-ind-svg { width: 100%; height: 36px; display: block; }
 
 /* 우측 패널 — 매매/호가 탭 */
@@ -283,14 +283,14 @@
   display: flex;
   flex-direction: column;
   min-height: 0;
-  background: #1e222d;
-  border: 1px solid rgba(122,162,247,0.12);
+  background: var(--bg2);
+  border: 1px solid var(--border);
   border-radius: 10px;
   overflow: hidden;
 }
 .ptd-tabs--main {
   flex-shrink: 0;
-  background: #121520;
+  background: var(--bg3);
 }
 .ptd-tabs--main .ptd-tab {
   padding: 10px;
@@ -320,11 +320,11 @@
 .ptd-order-card .top-panel { padding: 4px 2px; background: transparent; }
 .ptd-order-card .top-field { margin-bottom: 4px; }
 .ptd-order-card .top-submit--buy { background: #22c55e !important; border-color: #22c55e !important; }
-.ptd-order-card .top-submit--sell { background: #3f7ef5 !important; border-color: #3f7ef5 !important; }
+.ptd-order-card .top-submit--sell { background: var(--accent) !important; border-color: var(--accent) !important; }
 
 .ptd-ob {
-  background: #1e222d;
-  border: 1px solid rgba(122,162,247,0.12);
+  background: var(--bg2);
+  border: 1px solid var(--border);
   border-radius: 10px;
   overflow: hidden;
 }
@@ -339,8 +339,8 @@
   padding: 8px 10px;
   font-size: 11px;
   font-weight: 700;
-  color: #9aa5ce;
-  border-bottom: 1px solid rgba(122,162,247,0.08);
+  color: var(--text2);
+  border-bottom: 1px solid var(--sep);
   flex-shrink: 0;
 }
 .ptd-ob-body {
@@ -378,15 +378,15 @@
 .ptd-ob-row--bid .ptd-ob-bar { background: #22c55e; left: 0; right: auto; }
 .ptd-ob-row--ask .ptd-ob-price { color: #ef4444; position: relative; z-index: 1; }
 .ptd-ob-row--bid .ptd-ob-price { color: #22c55e; position: relative; z-index: 1; }
-.ptd-ob-size { position: relative; z-index: 1; color: #6272a4; }
+.ptd-ob-size { position: relative; z-index: 1; color: var(--text3); }
 .ptd-ob-mid {
   text-align: center;
   padding: 5px;
   font-size: 12px;
   font-weight: 800;
-  color: #fff;
-  border-top: 1px solid rgba(122,162,247,0.08);
-  border-bottom: 1px solid rgba(122,162,247,0.08);
+  color: var(--text);
+  border-top: 1px solid var(--sep);
+  border-bottom: 1px solid var(--sep);
 }
 
 .ptd-history-card {
@@ -402,17 +402,17 @@
   flex: 1;
   min-height: 0;
 }
-.ptd-tabs { display: flex; border-bottom: 1px solid rgba(122,162,247,0.1); flex-shrink: 0; }
+.ptd-tabs { display: flex; border-bottom: 1px solid var(--sep); flex-shrink: 0; }
 .ptd-tab {
   flex: 1;
   padding: 7px;
   border: none;
   background: transparent;
-  color: #6272a4;
+  color: var(--text3);
   font-size: 10px;
   cursor: pointer;
 }
-.ptd-tab.active { color: #3f7ef5; font-weight: 700; border-bottom: 2px solid #3f7ef5; }
+.ptd-tab.active { color: var(--accent); font-weight: 700; border-bottom: 2px solid var(--accent); }
 .ptd-table--compact { font-size: 9px; }
 .ptd-table--compact th,
 .ptd-table--compact td { padding: 5px 6px; }
diff --git a/frontend/src/utils/documentTheme.ts b/frontend/src/utils/documentTheme.ts
new file mode 100644
index 0000000..58a7bff
--- /dev/null
+++ b/frontend/src/utils/documentTheme.ts
@@ -0,0 +1,11 @@
+import type { Theme } from '../types';
+
+const HTML_THEME_CLASSES = ['theme-dark', 'theme-light', 'theme-blue'] as const;
+
+/** body 포털(알림 팝업 등)에서도 테마 CSS 변수가 적용되도록 html 클래스 동기화 */
+export function syncDocumentTheme(theme: Theme): void {
+  if (typeof document === 'undefined') return;
+  const html = document.documentElement;
+  html.classList.remove(...HTML_THEME_CLASSES);
+  html.classList.add(`theme-${theme}`);
+}