diff --git a/doc/11-PDF-EXPORT.md b/doc/11-PDF-EXPORT.md
index 0f6f4d0..d2926a4 100644
--- a/doc/11-PDF-EXPORT.md
+++ b/doc/11-PDF-EXPORT.md
@@ -43,6 +43,179 @@ The CV application provides a comprehensive PDF export system with three predefi
**See**: `internal/pdf/generator.go` lines 146-165 for implementation
+### PDF Generation Flow
+
+```
+User selects PDF option in modal
+ ↓
+Frontend: /export/pdf?lang={lang}&length={length}&icons={icons}&version={version}
+ ↓
+Backend: GenerateFromURLWithOptions(url, cookies, RenderMode)
+ ↓
+Chromedp: Navigate to URL with cookies
+ ↓
+CSS Injection: Override print.css + Show/hide sidebars + Layout adjustments
+ ↓
+PDF Generation: PrintToPDF with A4 dimensions
+ ↓
+Output: PDF file (4, 5, 7, or 9 pages depending on configuration)
+```
+
+### 2-Column vs 3-Column Layout Decision
+
+**Critical Architecture Decision** for long CV with sidebars:
+
+#### ❌ Previous Approach (3-column - WRONG)
+```css
+.page-1, .page-2: 25% | 50% | 25% /* Always 3 columns */
+```
+**Problems:**
+- Page 1 had empty right column (25% wasted space)
+- Page 2 had empty left column (25% wasted space)
+- Result: 10-19 pages (excessive)
+
+#### ✅ Current Approach (2-column - CORRECT)
+```css
+.page-1: 25% | 75% /* Left sidebar + Main, NO right space */
+.page-2: 75% | 25% /* Main + Right sidebar, NO left space */
+```
+**Benefits:**
+- No wasted space on either page
+- Matches web's actual layout exactly
+- Result: **9 pages** (optimal)
+
+### Sidebar Width Configuration
+
+Sidebar width affects page count and readability:
+
+| Width | Layout | Pages | Notes |
+|-------|--------|-------|-------|
+| 18% | 18% \| 82% | 9 pages | Too narrow, cramped |
+| 20% | 20% \| 80% | 8 pages | Minimal sidebars |
+| **25%** | **25% \| 75%** | **9 pages** | ✅ **Current** (optimal balance) |
+| 30% | 30% \| 70% | 10+ pages | Too wide, excessive |
+
+**Current Setting**: 25% sidebars (configured in `internal/pdf/generator.go:176,181`)
+
+**To adjust sidebar width**, update these lines in `internal/pdf/generator.go`:
+```go
+// Page 1: Left sidebar (XX%) + Main (YY%) - NO right space
+'.page-1 .page-content { grid-template-columns: XX% YY% !important; }' +
+
+// Page 2: Main (YY%) + Right sidebar (XX%) - NO left space
+'.page-2 .page-content { grid-template-columns: YY% XX% !important; }'
+
+// Where XX + YY = 100
+```
+
+### Detailed CSS Injection Strategy
+
+For `RenderModeScreen` (long CV with sidebars), the following CSS is injected:
+
+```javascript
+// Override parent width constraints (full A4 width)
+'.cv-page, .cv-paper, .cv-container { max-width: 100% !important; width: 100% !important; }'
+
+// Show sidebars (override print.css hiding)
+'.cv-sidebar, .cv-sidebar-left, .cv-sidebar-right { display: block !important; }'
+
+// Hide mobile UI elements (accordion headers, navigation, etc.)
+'.sidebar-accordion-header { display: none !important; }'
+'.no-print, .action-bar, .navigation-menu, .hamburger-btn { display: none !important; }'
+'footer, .back-to-top, .info-button, .info-modal { display: none !important; }'
+
+// Force page break before page 2
+'.page-2 { page-break-before: always !important; break-before: page !important; }'
+
+// 2-column layouts (no wasted space)
+'.page-1 .page-content { grid-template-columns: 25% 75% !important; }' // Left + Main
+'.page-2 .page-content { grid-template-columns: 75% 25% !important; }' // Main + Right
+```
+
+### HTML Structure
+
+**Page 1** - Left sidebar + Main content:
+```html
+
+```
+
+**Page 2** - Main content + Right sidebar:
+```html
+
+```
+
+### Compact Sidebar Fonts Feature
+
+**Overview:**
+Automatically reduces sidebar font sizes by 2-6% **only for short CVs with skills** (`length=short&version=with_skills`), reducing page count from 6 to 5 pages while maintaining readability.
+
+**Impact:**
+- Page count reduction: 6 → 5 pages (16.7% reduction)
+- Font size reduction: 2-6% (very subtle, 0.94-0.98em)
+- Readability: Maintained - fonts remain professional
+- **Only for short version** - Long version uses full-size fonts
+
+**Activation Conditions:**
+1. `length=short` (detected via `cv-length` cookie)
+2. `version=with_skills` (RenderModeScreen with sidebars)
+
+**Does NOT activate for:**
+- Long CVs (`length=long`) - always use full-size fonts
+- Clean version (`version=clean`) - no sidebars shown
+
+**Implementation** (`internal/pdf/generator.go` lines 154-215):
+```go
+// Check if this is a short version (to apply compact sidebar fonts)
+isShortVersion := cookies["cv-length"] == "short"
+
+compactFontCSS := ""
+if isShortVersion {
+ compactFontCSS = `
+ /* Compact sidebar fonts (SHORT VERSION ONLY) */
+ .cv-sidebar * { font-size: 0.96em !important; line-height: 1.4 !important; }
+ .cv-sidebar h3 { font-size: 0.98em !important; margin: 0.4em 0 !important; }
+ .cv-sidebar h4 { font-size: 0.96em !important; margin: 0.35em 0 !important; }
+ .cv-sidebar p, .cv-sidebar li { font-size: 0.94em !important; line-height: 1.4 !important; }
+ .cv-sidebar ul, .cv-sidebar ol { margin: 0.4em 0 0.4em 1.2em !important; }
+ .cv-sidebar li { margin-bottom: 0.25em !important; }
+ .cv-sidebar section { margin-bottom: 0.8em !important; }
+ `
+}
+```
+
+**Font Size Breakdown:**
+
+| Element | Full-Size (Long) | Compact (Short) | Reduction |
+|---------|------------------|-----------------|-----------|
+| General text | 1.0em | 0.96em | 4% |
+| H3 headings | 1.0em | 0.98em | 2% |
+| H4 headings | 1.0em | 0.96em | 4% |
+| Paragraphs & lists | 1.0em | 0.94em | 6% |
+
+**Design Philosophy:**
+- **Readability first**: 2-6% reduction is barely noticeable
+- **Professional appearance**: No "squeezed" or cramped feel
+- **Natural flow**: Content reflows organically, not forced
+- **Consistent UX**: Main content uses full-size fonts
+
## Feature Specifications
### Export Options
diff --git a/doc/LONG-PDF-GENERATION.md b/doc/LONG-PDF-GENERATION.md
deleted file mode 100644
index cfd1fea..0000000
--- a/doc/LONG-PDF-GENERATION.md
+++ /dev/null
@@ -1,411 +0,0 @@
-# Long PDF Generation with Skills Sidebars
-
-## Overview
-
-The long PDF generation feature creates a comprehensive CV that includes technical skills sidebars positioned on the left and right sides, while hiding UI elements for a clean, print-optimized output.
-
-**Page counts**:
-- **Long version** (9 pages) - Full-size fonts, comprehensive content
-- **Short version with skills** (5 pages) - Compact sidebar fonts for reduced page count
-
-## Key Features
-
-- **9-page layout** with optimal content density
-- **25% sidebars** for skills/competencies display
-- **2-column approach** matching web layout (no wasted space)
-- **Page breaks** between left and right sidebar sections
-- **Hidden mobile UI elements** (accordion headers, navigation)
-- **Print media CSS** for compact, professional typography
-
-## Architecture
-
-### PDF Generation Flow
-
-```
-User clicks "Long CV (9 pages)" in PDF Modal
- ↓
-Frontend: `/export/pdf?lang=es&length=long&icons=show&version=with_skills`
- ↓
-Backend: GenerateFromURLWithOptions(url, cookies, RenderModeScreen)
- ↓
-Chromedp: Navigate to URL with cookies
- ↓
-CSS Injection: Override print.css + Show sidebars + 2-column layout
- ↓
-PDF Generation: PrintToPDF with A4 dimensions
- ↓
-Output: 9-page PDF with sidebars (or 5 pages with compact fonts for short version)
-```
-
-### Critical Components
-
-#### 1. PDF Generator (`internal/pdf/generator.go`)
-
-**RenderMode**:
-- `RenderModePrint` - Clean version (hides sidebars)
-- `RenderModeScreen` - Long version (shows sidebars)
-
-**CSS Injection Strategy**:
-```javascript
-// Override parent width constraints (full A4 width)
-'.cv-page, .cv-paper, .cv-container { max-width: 100% !important; ... }'
-
-// Show sidebars (override print.css hiding)
-'.cv-sidebar, .cv-sidebar-left, .cv-sidebar-right { display: block !important; }'
-
-// Hide mobile UI elements
-'.sidebar-accordion-header { display: none !important; }'
-
-// Force page break before page 2
-'.page-2 { page-break-before: always !important; break-before: page !important; }'
-
-// 2-column layouts (no wasted space)
-'.page-1 .page-content { grid-template-columns: 25% 75% !important; }'
-'.page-2 .page-content { grid-template-columns: 75% 25% !important; }'
-```
-
-#### 2. HTML Structure (`templates/cv-content.html`)
-
-**Page 1**: Left sidebar + Main content
-```html
-
-```
-
-**Page 2**: Main content + Right sidebar
-```html
-
-```
-
-#### 3. Frontend Integration (`templates/partials/modals/pdf-modal.html`)
-
-**PDF Modal Options**:
-- Short CV (4 pages) - `version=clean`
-- **Long CV (9 pages)** - `version=with_skills` ← This feature
-- **Short CV with skills (5 pages)** - `length=short&version=with_skills` with compact fonts
-- Current View - Uses localStorage settings
-
-## Why 2-Column Layout?
-
-### ❌ Previous Approach (3-column - WRONG)
-```css
-.page-1, .page-2: 25% | 50% | 25% /* Always 3 columns */
-```
-- Page 1 had empty right column (25% wasted)
-- Page 2 had empty left column (25% wasted)
-- Result: 10-19 pages
-
-### ✅ Current Approach (2-column - CORRECT)
-```css
-.page-1: 25% | 75% /* Left sidebar + Main, NO right space */
-.page-2: 75% | 25% /* Main + Right sidebar, NO left space */
-```
-- No wasted space on either page
-- Matches web's actual layout exactly
-- Result: **9 pages**
-
-## Configuration
-
-### Sidebar Width Tuning
-
-Sidebar width affects page count:
-
-| Width | Layout | Pages | Notes |
-|-------|--------|-------|-------|
-| 18% | 18% \| 82% | 9 pages | Too narrow |
-| 20% | 20% \| 80% | 8 pages | Minimal sidebars |
-| **25%** | **25% \| 75%** | **9 pages** | ✅ **Current** (optimal balance) |
-| 30% | 30% \| 70% | 10+ pages | Too wide |
-
-**Current Setting**: 25% sidebars (`internal/pdf/generator.go:176,181`)
-
-### Adjusting Sidebar Width
-
-To change sidebar width, update two lines in `internal/pdf/generator.go`:
-
-```go
-// Page 1: Left sidebar (XX%) + Main (YY%) - NO right space
-'.page-1 .page-content { ' +
- 'grid-template-columns: XX% YY% !important; ' +
-'} ' +
-
-// Page 2: Main (YY%) + Right sidebar (XX%) - NO left space
-'.page-2 .page-content { ' +
- 'grid-template-columns: YY% XX% !important; ' +
-'} ' +
-```
-
-Where `XX + YY = 100`
-
-## Print Media CSS
-
-The extended PDF uses `@media print` from `static/css/08-contexts/_print.css` for:
-- Compact fonts and spacing
-- Hiding UI chrome (navigation, buttons, footer)
-- Professional typography
-
-**Overridden in PDF**:
-- Sidebar hiding (`.cv-sidebar { display: none }` → `display: block !important`)
-- Accordion headers (`.sidebar-accordion-header { display: none !important }`)
-
-## Testing
-
-### Unit Tests
-
-The long PDF feature has comprehensive test coverage in `internal/handlers/pdf_test.go`:
-
-**Test Functions:**
-1. `TestExportPDF_LongWithSkills` - Tests long PDF with multiple language/icon combinations
-2. `TestPDFGenerator_RenderModes` - Tests both `RenderModePrint` and `RenderModeScreen`
-3. `TestExportPDF_SkillsSidebarFeatures` - Tests specific skills sidebar features:
- - Version parameter validation (`clean`, `with_skills`)
- - PDF modal integration URLs
- - Frontend button parameter correctness
-4. `TestPDFGenerator_CompactSidebarFonts` - Tests compact font feature for short version
-
-Run the tests:
-```bash
-go test ./internal/handlers -v -run TestExportPDF
-```
-
-### Integration Testing
-
-Check page count and PDF generation:
-```bash
-# Download long PDF (9 pages with sidebars)
-curl "http://localhost:1999/export/pdf?lang=es&length=long&icons=show&version=with_skills" -o test-long.pdf
-
-# Download short PDF with skills (5 pages with compact fonts)
-curl "http://localhost:1999/export/pdf?lang=es&length=short&icons=show&version=with_skills" -o test-short-skills.pdf
-
-# Download short PDF clean (4 pages, no sidebars)
-curl "http://localhost:1999/export/pdf?lang=es&length=short&icons=show&version=clean" -o test-short.pdf
-
-# Verify page counts
-pdfinfo test-long.pdf | grep Pages
-# Expected: Pages: 9
-
-pdfinfo test-short-skills.pdf | grep Pages
-# Expected: Pages: 5
-
-pdfinfo test-short.pdf | grep Pages
-# Expected: Pages: 4
-```
-
-### Manual Verification
-
-**Long CV (9 pages):**
-1. Open http://localhost:1999 in browser
-2. Click "Descargar PDF" button
-3. Select "CV Largo (9 páginas)" / "Long CV (9 pages)"
-4. Click "Descargar PDF"
-5. Verify downloaded PDF has:
- - 9 pages total
- - 25% sidebars on left (page 1) and right (page 2+)
- - Full-size fonts in sidebars
- - No "Competencias Técnicas" accordion header visible
- - Page break between page 1 and page 2
- - Skills content displayed in sidebars
-
-**Short CV with skills (5 pages with compact fonts):**
-1. Toggle to short view and with_skills theme
-2. Download PDF
-3. Verify:
- - 5 pages total
- - Compact sidebar fonts (0.94-0.98em)
- - All content fits naturally without overflow
- - Maintained readability
-
-## API Endpoint
-
-**URL**: `/export/pdf`
-
-**Query Parameters**:
-- `lang` - Language (`es`, `en`)
-- `length` - CV length (`short`, `long`)
-- `icons` - Show icons (`show`, `hide`)
-- `version` - Layout version (`clean`, `with_skills`)
-
-**Examples**:
-```bash
-# Long CV with skills (9 pages, full-size fonts)
-GET /export/pdf?lang=es&length=long&icons=show&version=with_skills
-
-# Short CV with skills (5 pages, compact sidebar fonts)
-GET /export/pdf?lang=es&length=short&icons=show&version=with_skills
-
-# Short CV clean (4 pages, no sidebars)
-GET /export/pdf?lang=es&length=short&icons=show&version=clean
-```
-
-## Troubleshooting
-
-### Issue: Sidebars not showing
-**Solution**: Check `RenderModeScreen` is being used (not `RenderModePrint`)
-
-### Issue: Wrong page count
-**Solution**:
-1. Check sidebar width percentage (should be 25%)
-2. Verify CSS injection is working
-3. Check for browser console errors
-
-### Issue: Accordion header visible
-**Solution**: Ensure `.sidebar-accordion-header { display: none !important; }` in CSS injection
-
-### Issue: No page break between pages
-**Solution**: Verify `.page-2 { page-break-before: always !important; }` is applied
-
-## Compact Sidebar Fonts Feature
-
-### Overview
-
-The compact sidebar fonts feature automatically reduces sidebar font sizes by 2-6% **only for short CVs with skills** (`length=short&version=with_skills`), reducing page count from 6 pages to 5 pages while maintaining excellent readability.
-
-**Impact:**
-- **Page count reduction**: 6 pages → 5 pages (16.7% reduction)
-- **Font size reduction**: 2-6% (very subtle, 0.94-0.98em)
-- **Readability**: Maintained - fonts remain professional and readable
-- **Only for short version**: Long version uses full-size fonts
-
-### When It Activates
-
-The feature automatically activates when **both** conditions are met:
-1. `length=short` (detected via `cv-length` cookie)
-2. `version=with_skills` (RenderModeScreen with sidebars)
-
-**Does NOT activate for:**
-- Long CVs (`length=long`) - always use full-size fonts
-- Clean version (`version=clean`) - no sidebars shown
-- Short clean version - no sidebars to compact
-
-### Implementation
-
-**Location**: `internal/pdf/generator.go` (lines 154-215)
-
-**Cookie Detection**:
-```go
-// Check if this is a short version (to apply compact sidebar fonts)
-// The length parameter is passed as a cookie, not in the URL
-isShortVersion := cookies["cv-length"] == "short"
-```
-
-**CSS Injection** (only when `isShortVersion == true`):
-```go
-compactFontCSS := ""
-if isShortVersion {
- compactFontCSS = ` +
- // Compact sidebar fonts (SHORT VERSION ONLY) - very subtle reduction
- '.cv-sidebar * { font-size: 0.96em !important; line-height: 1.4 !important; } ' +
- '.cv-sidebar h3 { font-size: 0.98em !important; margin: 0.4em 0 !important; } ' +
- '.cv-sidebar h4 { font-size: 0.96em !important; margin: 0.35em 0 !important; } ' +
- '.cv-sidebar p, .cv-sidebar li { font-size: 0.94em !important; line-height: 1.4 !important; } ' +
- '.cv-sidebar ul, .cv-sidebar ol { margin: 0.4em 0 0.4em 1.2em !important; } ' +
- '.cv-sidebar li { margin-bottom: 0.25em !important; } ' +
- '.cv-sidebar section { margin-bottom: 0.8em !important; } '`
-}
-```
-
-### Font Size Breakdown
-
-| Element | Full-Size (Long) | Compact (Short) | Reduction |
-|---------|------------------|-----------------|-----------|
-| General text | 1.0em | 0.96em | 4% |
-| H3 headings | 1.0em | 0.98em | 2% |
-| H4 headings | 1.0em | 0.96em | 4% |
-| Paragraphs & lists | 1.0em | 0.94em | 6% |
-
-**Line height**: Consistent 1.4 for improved readability
-
-### Design Philosophy
-
-**Why subtle reduction?**
-1. **Readability first**: 2-6% reduction is barely noticeable
-2. **Professional appearance**: No "squeezed" or cramped feel
-3. **Natural flow**: Content reflows organically, not forced
-4. **Consistent UX**: Main content uses full-size fonts
-
-**Why only short version?**
-- Short CV has less content → compact fonts sufficient
-- Long CV needs maximum readability for extensive content
-- Consistent with "short = concise, long = comprehensive" semantics
-
-### Testing
-
-**Test function**: `TestPDFGenerator_CompactSidebarFonts` in `internal/handlers/pdf_test.go`
-
-**Test coverage:**
-1. Cookie-based detection (`cv-length=short` vs `cv-length=long`)
-2. PDF generation with compact fonts
-3. Version parameter validation (`with_skills` vs `clean`)
-4. Page count verification (5 pages for short with skills)
-
-**Run tests**:
-```bash
-go test ./internal/handlers -v -run TestPDFGenerator_CompactSidebarFonts
-```
-
-### Manual Verification
-
-1. Navigate to http://localhost:1999
-2. Toggle to **short view** (localStorage: `cv-length=short`)
-3. Toggle to **with_skills theme** (localStorage: `cv-theme=default` or `with_skills`)
-4. Download PDF
-5. Verify:
- - **5 pages total** (not 6)
- - Sidebar fonts slightly smaller than main content
- - Still professional and readable
- - No content overflow or truncation
-
-**Compare with long version:**
-1. Toggle to **long view** (`cv-length=long`)
-2. Download PDF
-3. Verify:
- - **9 pages total**
- - Sidebar fonts same size as short version main content
- - Full-size fonts throughout
-
-### Troubleshooting
-
-#### Issue: Short PDF still has 6 pages
-**Solution**:
-1. Verify `cv-length` cookie is set to `short` (check browser DevTools)
-2. Ensure `isShortVersion` detection works in generator.go:156
-3. Check CSS injection is applied (add debug logging)
-
-#### Issue: Fonts too small or hard to read
-**Solution**:
-1. Adjust font size percentages in generator.go:206-214
-2. Increase from 0.94em to 0.96em for paragraphs
-3. Test with actual content to verify readability
-
-#### Issue: Long version also has compact fonts
-**Solution**:
-1. Check cookie detection logic - must be `cookies["cv-length"] == "short"`
-2. Verify compactFontCSS is only appended when `isShortVersion == true`
-3. Ensure long version passes `cv-length=long` cookie
-
-## Future Improvements
-
-- [ ] Make sidebar width configurable via query parameter
-- [ ] Add option to customize page break positioning
-- [ ] Support for different paper sizes (Letter, Legal)
-- [ ] Transparent background option
-- [ ] Custom padding/margin configuration
-
-## Related Files
-
-- `internal/pdf/generator.go` - PDF generation logic
-- `templates/cv-content.html` - HTML structure
-- `templates/partials/modals/pdf-modal.html` - Frontend UI
-- `static/css/08-contexts/_print.css` - Print media CSS
-- `internal/handlers/pdf.go` - HTTP handler
-- `tests/mjs/24-pdf-download-params.test.mjs` - Frontend tests