Update version to 1.7.1 and document UI improvements

- Updated version from 1.7.0 to 1.7.1 in package.json
- Updated About dialog version in main.js
- Added modern glassmorphism UI as first feature
- Updated CLAUDE.md with v1.7.1 documentation
- Documented glassmorphism design system
- Listed all modern UI features and technical details
- Updated last modified date to October 11, 2025

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

CLAUDE.md

@@ -4,7 +4,7 @@
 
 **PanConverter** is a cross-platform Markdown editor and converter powered by Pandoc, built with Electron. It provides professional-grade editing capabilities with comprehensive export options.
 
-**Current Version**: v1.6.1
+**Current Version**: v1.7.1
 **Author**: Amit Haridas (amit.wh@gmail.com)
 **License**: MIT
 **Repository**: https://github.com/amitwh/pan-converter
@@ -26,7 +26,8 @@ src/
 ├── main.js            # Electron main process, menu system, IPC handlers
 ├── renderer.js        # TabManager class, multi-file editing, event handling
 ├── index.html         # Application layout with tabbed interface
-└── styles.css     # Comprehensive styling with multi-theme support
+├── styles.css         # Base styling with multi-theme support
+└── styles-modern.css  # Modern glassmorphism UI design system (v1.7.1)
 
 assets/
 └── icon.png       # Application icon
@@ -110,7 +111,39 @@ gh release create v1.2.1 --title "Title" --notes "Release notes" \
 
 ## Feature Implementation Guide
 
-### v1.7.0 PDF Editor & Universal Converter (Latest)
+### v1.7.1 Modern UI Design (Latest)
+
+#### 🎨 Glassmorphism & Gradient UI
+**Modern Design System** (`src/styles-modern.css`, `src/index.html:7-11`)
+- **Glassmorphism Effects** - Translucent backgrounds with backdrop-filter blur
+- **Animated Gradient Background** - Purple-blue gradient that shifts colors dynamically
+- **CSS Custom Properties** - Centralized theming with CSS variables
+- **Modern Typography** - Inter font family for UI, JetBrains Mono for code
+- **Smooth Animations** - CSS transitions with cubic-bezier easing
+- **Enhanced Hover Effects** - Interactive elements with scale and transform effects
+- **Custom Scrollbars** - Styled scrollbars matching the modern aesthetic
+- **Progress Bars** - Shimmer animations and gradient fills
+
+**Design Features:**
+- Animated gradient background (15-second color shift loop)
+- Glass-effect tabs with blur and semi-transparency
+- Gradient-based buttons with hover/active states
+- Modern card-based dialogs with rounded corners
+- Enhanced typography with gradient text for headings
+- Ripple-like hover effects on interactive elements
+- Theme variables for consistent colors and spacing
+- Shadow effects with proper depth perception
+
+**Technical Implementation:**
+- Created comprehensive `styles-modern.css` file (780+ lines)
+- Google Fonts integration (Inter, JetBrains Mono)
+- CSS Grid and Flexbox for modern layouts
+- backdrop-filter for glassmorphism (with fallbacks)
+- CSS animations with @keyframes
+- RGB/RGBA color system with opacity control
+- CSS custom properties for easy theming
+
+### v1.7.0 PDF Editor & Universal Converter
 
 #### 📄 Comprehensive PDF Editor
 **Complete PDF Manipulation Suite** (`src/main.js:1566-2068`, `src/index.html:552-921`, `src/renderer.js:1951-2429`)
@@ -532,5 +565,5 @@ gh release create v1.2.1 --title "Title" --notes "Release notes" \
 
 ---
 
-**Last Updated**: September 15, 2025
-**Claude Assistant**: Development completed for v1.5.0 with optional advanced export options, removed proprietary dependencies for open-source compatibility, enhanced auto-save functionality, comprehensive document statistics, recent files management, and mathematical expression support using KaTeX.
+**Last Updated**: October 11, 2025
+**Claude Assistant**: Development completed for v1.7.1 with modern glassmorphism UI design featuring animated gradient backgrounds, translucent glass effects, smooth animations, enhanced typography with Inter and JetBrains Mono fonts, and comprehensive CSS custom properties for consistent theming.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "pan-converter",
-  "version": "1.7.0",
+  "version": "1.7.1",
   "description": "Cross-platform Markdown editor and converter using Pandoc",
   "main": "src/main.js",
   "scripts": {

src/main.js

@@ -389,7 +389,7 @@ function createMenu() {
               type: 'info',
               title: 'About PanConverter',
               message: 'PanConverter',
-              detail: 'A cross-platform Markdown editor and converter using Pandoc.\n\nVersion: 1.7.0\nAuthor: Amit Haridas\nEmail: amit.wh@gmail.com\nLicense: MIT\n\nFeatures:\n• Comprehensive PDF Editor (merge, split, compress, rotate, watermark, encrypt)\n• Universal File Converter (LibreOffice, ImageMagick, FFmpeg, Pandoc)\n• Windows Explorer context menu integration\n• Tabbed interface for multiple files\n• Advanced markdown editing with live preview\n• Real-time preview updates while typing\n• Full toolbar markdown editing functions\n• Enhanced PDF export with built-in Electron fallback\n• File association support for .md files\n• Command-line interface for batch conversion\n• Advanced export options with templates and metadata\n• Batch file conversion with progress tracking\n• Improved preview typography and spacing\n• Adjustable font sizes via menu (Ctrl+Shift+Plus/Minus)\n• Complete theme support including Monokai fixes\n• Find & replace with match highlighting\n• Line numbers and auto-indentation\n• Export to multiple formats via Pandoc\n• PowerPoint & presentation export\n• Export tables to Excel/ODS spreadsheets\n• Document import & conversion\n• Table creation helper\n• Multiple themes support\n• Undo/redo functionality\n• Live word count and statistics',
+              detail: 'A cross-platform Markdown editor and converter using Pandoc.\n\nVersion: 1.7.1\nAuthor: Amit Haridas\nEmail: amit.wh@gmail.com\nLicense: MIT\n\nFeatures:\n• Modern glassmorphism UI with gradient backgrounds\n• Comprehensive PDF Editor (merge, split, compress, rotate, watermark, encrypt)\n• Universal File Converter (LibreOffice, ImageMagick, FFmpeg, Pandoc)\n• Windows Explorer context menu integration\n• Tabbed interface for multiple files\n• Advanced markdown editing with live preview\n• Real-time preview updates while typing\n• Full toolbar markdown editing functions\n• Enhanced PDF export with built-in Electron fallback\n• File association support for .md files\n• Command-line interface for batch conversion\n• Advanced export options with templates and metadata\n• Batch file conversion with progress tracking\n• Improved preview typography and spacing\n• Adjustable font sizes via menu (Ctrl+Shift+Plus/Minus)\n• Complete theme support including Monokai fixes\n• Find & replace with match highlighting\n• Line numbers and auto-indentation\n• Export to multiple formats via Pandoc\n• PowerPoint & presentation export\n• Export tables to Excel/ODS spreadsheets\n• Document import & conversion\n• Table creation helper\n• Multiple themes support\n• Undo/redo functionality\n• Live word count and statistics',
               buttons: ['OK']
             });
           }