feat: add chapter transition toast and smart title & episode badge parsing

src/App.css

@@ -484,6 +484,13 @@ kbd {
   min-width: 0;
 }
 
+.history-title-row {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  overflow: hidden;
+}
+
 .history-manga-title {
   font-size: 13px;
   font-weight: 600;
@@ -501,6 +508,93 @@ kbd {
   white-space: nowrap;
 }
 
+/* Toolbar Title and Episode Badge */
+.toolbar-title-container {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  max-width: 360px;
+  min-width: 0;
+}
+
+.toolbar-title-name {
+  font-size: 13px;
+  font-weight: 600;
+  color: var(--color-text);
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.episode-badge {
+  background: linear-gradient(135deg, #7c3aed, #4f46e5);
+  color: #ffffff;
+  font-size: 11px;
+  font-weight: 700;
+  padding: 2px 7px;
+  border-radius: 12px;
+  white-space: nowrap;
+  flex-shrink: 0;
+  box-shadow: 0 2px 6px rgba(124, 58, 237, 0.4);
+}
+
+.episode-badge.sm {
+  font-size: 10px;
+  padding: 1px 6px;
+}
+
+/* Chapter Transition Toast */
+.chapter-toast {
+  position: absolute;
+  top: 24px;
+  left: 50%;
+  transform: translateX(-50%);
+  z-index: 100;
+  background: rgba(15, 15, 20, 0.88);
+  backdrop-filter: blur(12px);
+  -webkit-backdrop-filter: blur(12px);
+  border: 1px solid rgba(255, 255, 255, 0.15);
+  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
+  padding: 10px 18px;
+  border-radius: 30px;
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  pointer-events: none;
+  animation: toastFadeIn 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
+}
+
+.toast-badge {
+  background: linear-gradient(135deg, #7c3aed, #4f46e5);
+  color: #fff;
+  font-size: 12px;
+  font-weight: 700;
+  padding: 3px 9px;
+  border-radius: 12px;
+  white-space: nowrap;
+}
+
+.toast-title {
+  color: #f3f4f6;
+  font-size: 14px;
+  font-weight: 600;
+  max-width: 320px;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+@keyframes toastFadeIn {
+  from {
+    opacity: 0;
+    transform: translate(-50%, -12px) scale(0.95);
+  }
+  to {
+    opacity: 1;
+    transform: translate(-50%, 0) scale(1);
+  }
+}
+
 .history-url {
   flex: 1;
   font-size: 13px;

src/components/MangaViewer.tsx

@@ -2,6 +2,7 @@ import { invoke } from '@tauri-apps/api/core';
 import { useState, useEffect, useCallback, useRef } from 'react';
 import type { ViewerSettings } from '../types';
 import type { ChapterData } from '../types';
+import { parseTitleAndEpisode } from '../utils/titleParser';
 import { MangaPage } from './MangaPage';
 import { ViewerToolbar } from './ViewerToolbar';
 import { SettingsPanel } from './SettingsPanel';
@@ -82,9 +83,21 @@ export function MangaViewer({
   const [dismissNavError, setDismissNavError] = useState(false);
   const [boundaryWarning, setBoundaryWarning] = useState<'first' | 'last' | null>(null);
   const [dimMap, setDimMap] = useState<Record<string, { width: number; height: number }>>({});
+  const [toast, setToast] = useState<{ title: string; episode: string | null } | null>(null);
   const toolbarTimer = useRef<ReturnType<typeof setTimeout> | null>(null);
   const containerRef = useRef<HTMLDivElement>(null);
 
+  // Trigger Chapter Notification Toast on chapter load/change
+  useEffect(() => {
+    if (!chapter.title) return;
+    const parsed = parseTitleAndEpisode(chapter.title);
+    setToast(parsed);
+    const timer = setTimeout(() => {
+      setToast(null);
+    }, 2800);
+    return () => clearTimeout(timer);
+  }, [currentUrl, chapter.title]);
+
   useEffect(() => {
     setDismissNavError(false);
     if (!navError) return;
@@ -327,6 +340,14 @@ export function MangaViewer({
         </div>
       )}
 
+      {/* Chapter Transition Toast */}
+      {toast && (
+        <div className="chapter-toast">
+          {toast.episode && <span className="toast-badge">{toast.episode}</span>}
+          <span className="toast-title">{toast.title}</span>
+        </div>
+      )}
+
       {/* Boundary Warning */}
       {boundaryWarning && (
         <div className="boundary-warning">

src/components/UrlInput.tsx

@@ -1,5 +1,6 @@
 import { useState, useRef, useEffect } from 'react';
 import type { HistoryEntry } from '../types';
+import { parseTitleAndEpisode } from '../utils/titleParser';
 
 interface UrlInputProps {
   onLoad: (url: string) => void;
@@ -153,7 +154,7 @@ export function UrlInput({
             </div>
             <div className="history-list">
               {history.map((entry) => {
-                const displayTitle = entry.chapterTitle || (entry.title && entry.title !== entry.url ? entry.title : null);
+                const parsed = parseTitleAndEpisode(entry.chapterTitle || entry.title);
                 return (
                   <div key={entry.url} className="history-item-wrapper">
                     <button
@@ -168,14 +169,11 @@ export function UrlInput({
                         <path d="M12 6v6l4 2"/>
                       </svg>
                       <div className="history-info">
-                        {displayTitle ? (
-                          <>
-                            <span className="history-manga-title">{displayTitle}</span>
-                            <span className="history-url-sub">{entry.url}</span>
-                          </>
-                        ) : (
-                          <span className="history-url">{entry.url}</span>
-                        )}
+                        <div className="history-title-row">
+                          <span className="history-manga-title">{parsed.title || entry.url}</span>
+                          {parsed.episode && <span className="episode-badge sm">{parsed.episode}</span>}
+                        </div>
+                        {parsed.title ? <span className="history-url-sub">{entry.url}</span> : null}
                       </div>
                       <span className="history-time">
                         {new Date(entry.timestamp).toLocaleDateString('ko-KR')}

src/components/ViewerToolbar.tsx

@@ -1,4 +1,5 @@
 import type { ViewerSettings } from '../types';
+import { parseTitleAndEpisode } from '../utils/titleParser';
 
 interface ViewerToolbarProps {
   visible: boolean;
@@ -72,7 +73,15 @@ export function ViewerToolbar({
 
       {/* Center: Title + page info */}
       <div className="toolbar-center">
-        {title && <span className="toolbar-title">{title}</span>}
+        {title && (() => {
+          const parsed = parseTitleAndEpisode(title);
+          return (
+            <div className="toolbar-title-container" title={title}>
+              <span className="toolbar-title-name">{parsed.title}</span>
+              {parsed.episode && <span className="episode-badge">{parsed.episode}</span>}
+            </div>
+          );
+        })()}
         <span className="page-indicator">
           {currentPage} – {Math.min(currentPage + (settings.mode === 'spread' && currentSlot >= settings.spreadStartOffset ? 1 : 0), totalPages)} / {totalPages}
         </span>

src/utils/titleParser.ts

@@ -0,0 +1,49 @@
+export interface ParsedTitle {
+  title: string;
+  episode: string | null;
+  fullCleanTitle: string;
+}
+
+export function parseTitleAndEpisode(rawTitle: string | null): ParsedTitle {
+  if (!rawTitle) return { title: '', episode: null, fullCleanTitle: '' };
+
+  // Remove site name suffixes like "- 마나토키 330", "- 뉴토끼", "- newtoki"
+  let clean = rawTitle
+    .replace(/\s*[-|_]\s*(마나토키|뉴토끼|newtoki|manatoki|웹툰|만화).*$/i, '')
+    .trim();
+
+  // 1. Match explicit episode format like "150화", "150.5화", "EP.15"
+  const epMatch = clean.match(/(\d+(?:\.\d+)?\s*화|ep\.?\s*\d+)/i);
+  if (epMatch) {
+    let episode = epMatch[1].replace(/\s+/g, '');
+    if (!episode.endsWith('화') && !episode.toLowerCase().startsWith('ep')) {
+      episode += '화';
+    }
+    // Remove the matched episode part from the title
+    let title = clean.replace(epMatch[0], '').trim();
+    // Clean up trailing dashes/colons/dots left over
+    title = title.replace(/[-|_:]\s*$/, '').trim();
+
+    return {
+      title: title || clean,
+      episode,
+      fullCleanTitle: clean,
+    };
+  }
+
+  // 2. Match trailing numbers like "제목 150"
+  const numMatch = clean.match(/(\d+(?:\.\d+)?)\s*$/);
+  if (numMatch) {
+    const episode = `${numMatch[1]}화`;
+    let title = clean.slice(0, numMatch.index).trim();
+    title = title.replace(/[-|_:]\s*$/, '').trim();
+
+    return {
+      title: title || clean,
+      episode,
+      fullCleanTitle: clean,
+    };
+  }
+
+  return { title: clean, episode: null, fullCleanTitle: clean };
+}