diff --git a/DIAGNOSIS_COMPLETE.md b/DIAGNOSIS_COMPLETE.md
new file mode 100644
index 0000000..4586e80
--- /dev/null
+++ b/DIAGNOSIS_COMPLETE.md
@@ -0,0 +1,262 @@
+# Production Theme Notch Styling Issue - Complete Diagnostic Report
+
+**Date**: 2026-02-10  
+**Status**: ✅ ROOT CAUSE IDENTIFIED  
+**Severity**: CRITICAL
+
+---
+
+## Quick Summary
+
+The theme notch component on production (https://santhoshj.com) appears as plain buttons in normal document flow instead of a fixed, positioned element in the top-right corner. 
+
+**Root Cause**: The production server is serving a **STALE CSS file** (17,628 bytes) that was built BEFORE the theme-notch CSS rules were added. The local build correctly generates a 24,279 byte CSS file with all rules.
+
+**Fix**: Rebuild and redeploy the Docker image with the latest source code.
+
+---
+
+## Evidence
+
+### 1. CSS File Size Mismatch
+
+| Metric | Local Build | Production | Status |
+|--------|-------------|-----------|--------|
+| File size | 24,279 bytes | ~17,628 bytes | ❌ MISMATCH |
+| Difference | - | -6,651 bytes (27% smaller) | ❌ CRITICAL |
+| theme-notch rules | 30 matches | 0 matches | ❌ MISSING |
+
+### 2. CSS Rules Comparison
+
+**Local CSS (site/dist/styles/global.css):**
+```css
+.theme-notch {
+  position: fixed;
+  top: var(--theme-notch-top);
+  right: max(8px, env(safe-area-inset-right));
+  z-index: 12;
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  pointer-events: none;
+}
+
+.theme-notch-panel {
+  position: absolute;
+  right: 60px;
+  top: 0;
+  display: grid;
+  gap: 6px;
+  padding: 12px;
+  border-radius: 16px;
+  border: 1px solid var(--stroke-mid);
+  background: var(--surface-1);
+  opacity: 0;
+  transform: translateX(10px) scale(0.98);
+  visibility: hidden;
+  pointer-events: none;
+  transition: opacity 160ms ease, transform 160ms ease, visibility 0s linear 160ms;
+}
+
+.theme-notch-handle { ... }
+.theme-notch-glyph { ... }
+.theme-notch-option { ... }
+.theme-notch-dot { ... }
+/* + media queries and forced-colors rules */
+```
+
+**Production CSS (https://santhoshj.com/styles/global.css):**
+```
+❌ ZERO matches for .theme-notch*
+```
+
+### 3. Computed Styles on Production
+
+| Property | Actual | Expected | Status |
+|----------|--------|----------|--------|
+| .theme-notch position | static | fixed | ❌ WRONG |
+| .theme-notch top | auto | 84px | ❌ WRONG |
+| .theme-notch right | auto | max(8px, env(...)) | ❌ WRONG |
+| .theme-notch z-index | auto | 12 | ❌ WRONG |
+| .theme-notch-panel position | static | absolute | ❌ WRONG |
+| .theme-notch-panel display | block | grid | ❌ WRONG |
+| .theme-notch-panel opacity | 1 | 0 (initially) | ❌ WRONG |
+| .theme-notch-panel visibility | visible | hidden (initially) | ❌ WRONG |
+
+### 4. HTML Markup Status
+
+✅ **Present and correct on both local and production:**
+- `<aside class="theme-notch" aria-label="Theme" data-theme-notch="" data-open="false">`
+- `<div class="theme-notch-panel" id="theme-notch-panel" role="radiogroup" aria-label="Theme selector">`
+- `<button class="theme-notch-option" data-theme-option="dark|light|contrast" role="radio" aria-checked="...">`
+- SVG glyph present in `.theme-notch-glyph`
+
+### 5. JavaScript Execution
+
+✅ **Inline scripts ARE executing** (no CSP block):
+- Theme initialization script runs
+- Service worker registration attempted
+- Navigation toggle script runs
+- Image lazy-load script runs
+
+**Console errors (unrelated to theme-notch CSS):**
+- `[ERROR] An unknown error occurred when fetching the script` (service worker)
+- `[ERROR] Failed to load resource: net::ERR_INSUFFICIENT_RESOURCES` (analytics)
+
+### 6. Network & Caching
+
+- ✅ `/styles/global.css` returns **[200] OK**
+- ✅ File loads successfully
+- ❌ Content is stale/outdated
+
+---
+
+## What's Working
+
+✅ HTML markup is present and correct  
+✅ JavaScript is executing without CSP errors  
+✅ Local development (`npm run dev`) works perfectly  
+✅ Local build (`npm run build`) generates correct CSS  
+✅ Network requests succeed  
+✅ Accessibility tree shows correct structure  
+
+---
+
+## What's Broken
+
+❌ Production CSS file is missing theme-notch rules  
+❌ CSS file size doesn't match local build  
+❌ Theme notch appears inline instead of fixed position  
+❌ Theme notch dropdown panel is not hidden initially  
+❌ Theme notch styling is completely absent  
+
+---
+
+## Root Cause Analysis
+
+### The Problem
+
+The production Docker image contains an **OLDER version of the CSS file** that was built **BEFORE the theme-notch CSS rules were added** to the source.
+
+### Why This Happened
+
+1. The theme-notch CSS rules exist in the source (`site/public/styles/global.css`)
+2. The local build correctly includes them in the output (`site/dist/styles/global.css` - 24,279 bytes)
+3. **BUT** the production Docker image contains an older version of the CSS file (~17,628 bytes)
+4. This suggests:
+   - The Docker image was built from an older commit
+   - OR the CSS file was not updated in the Docker image
+   - OR there's a stale build artifact being served
+
+### This is a DEPLOYMENT/CACHING issue, not a build issue
+
+---
+
+## Verification Performed
+
+✅ Navigated to https://santhoshj.com and /blog  
+✅ Captured console errors and warnings  
+✅ Checked network requests (global.css loads with [200])  
+✅ Fetched and parsed production CSS file  
+✅ Searched for `.theme-notch` selectors (0 matches found)  
+✅ Inspected computed styles via browser DevTools  
+✅ Verified HTML markup is present and correct  
+✅ Confirmed inline scripts execute without CSP errors  
+✅ Compared with local source CSS (rules present locally)  
+✅ Ran local build and verified CSS includes theme-notch rules  
+✅ Compared file sizes (24,279 bytes local vs ~17,628 bytes production)  
+
+---
+
+## Recommended Fix
+
+### Option 1: Rebuild and redeploy Docker image (RECOMMENDED)
+
+```bash
+# In the project root
+docker compose build --no-cache
+docker compose push
+# Deploy new image to production
+```
+
+### Option 2: If using CI/CD
+
+- Ensure the latest commit is being built
+- Verify the Docker build includes the latest `site/dist/` output
+- Check that the image is being pushed with the correct tag
+- Redeploy the image to production
+
+### Option 3: Quick verification before deploying
+
+```bash
+# SSH into production server
+# Check CSS file size
+ls -lh /usr/share/nginx/html/styles/global.css
+# Should show ~24,279 bytes (not ~17,628)
+
+# Verify theme-notch rules exist
+grep -c "theme-notch" /usr/share/nginx/html/styles/global.css
+# Should show 30+ matches (not 0)
+```
+
+---
+
+## Expected Result After Fix
+
+✅ Theme notch appears as a fixed button in top-right corner  
+✅ Clicking reveals a dropdown panel with Dark/Light/Contrast options  
+✅ Smooth animations and hover effects work  
+✅ CSS file size matches local build (~24,279 bytes)  
+✅ CSS file contains 30+ matches for "theme-notch"  
+✅ Computed styles show correct positioning and display properties  
+
+---
+
+## Files Involved
+
+| File | Purpose | Status |
+|------|---------|--------|
+| `site/public/styles/global.css` | Source CSS | ✅ Contains theme-notch rules (lines 306-457) |
+| `site/dist/styles/global.css` | Local build output | ✅ 24,279 bytes, 30 theme-notch matches |
+| `https://santhoshj.com/styles/global.css` | Production | ❌ ~17,628 bytes, 0 theme-notch matches |
+| `Dockerfile` | Docker build | ⚠️ Copies from `site/dist/` |
+| `site/src/components/BaseLayout.astro` | HTML template | ✅ Renders theme-notch markup |
+
+---
+
+## Summary Table
+
+| Aspect | Local | Production | Status |
+|--------|-------|-----------|--------|
+| CSS file exists | ✅ Yes | ✅ Yes | OK |
+| File size | 24,279 bytes | ~17,628 bytes | ❌ MISMATCH |
+| theme-notch rules | 30 matches | 0 matches | ❌ MISSING |
+| HTML markup | ✅ Present | ✅ Present | OK |
+| JavaScript | ✅ Executing | ✅ Executing | OK |
+| Computed styles | ✅ Correct | ❌ Wrong | BROKEN |
+| Visual result | ✅ Fixed notch | ❌ Inline buttons | BROKEN |
+
+---
+
+## Conclusion
+
+### The issue is NOT:
+- ❌ CSP blocking inline scripts
+- ❌ Missing HTML markup
+- ❌ JavaScript not executing
+- ❌ Browser caching
+
+### The issue IS:
+- ✅ **Production CSS file missing `.theme-notch` rules**
+- ✅ **Stale Docker image serving outdated CSS**
+- ✅ **Deployment/caching issue, not a build issue**
+
+### Action Required:
+**Rebuild and redeploy Docker image with latest source code.**
+
+---
+
+## Next Steps
+
+1. **Verify the fix**: Rebuild Docker image with latest source
+2. **Deploy**: Pu
diff --git a/DIAGNOSIS_SUMMARY.txt b/DIAGNOSIS_SUMMARY.txt
new file mode 100644
index 0000000..6ccc7ef
--- /dev/null
+++ b/DIAGNOSIS_SUMMARY.txt
@@ -0,0 +1,162 @@
+================================================================================
+PRODUCTION THEME NOTCH STYLING ISSUE - EXECUTIVE SUMMARY
+================================================================================
+
+ISSUE: Theme notch appears as plain buttons in normal document flow on production
+       (https://santhoshj.com) instead of a fixed, positioned element in the 
+       top-right corner with a dropdown panel.
+
+ROOT CAUSE: Production server is serving a STALE CSS file (17,628 bytes) that
+            was built BEFORE the theme-notch CSS rules were added. The local
+            build correctly generates a 24,279 byte CSS file with all rules.
+
+SEVERITY: CRITICAL - Component is completely unstyled and non-functional
+
+================================================================================
+EVIDENCE SUMMARY
+================================================================================
+
+1. CSS FILE SIZE MISMATCH
+   Local build:      24,279 bytes ✅ (includes theme-notch rules)
+   Production:       ~17,628 bytes ❌ (missing theme-notch rules)
+   Difference:       ~6,651 bytes (27% smaller)
+
+2. THEME-NOTCH RULES
+   Local CSS:        30 matches for "theme-notch" ✅
+   Production CSS:   0 matches for "theme-notch" ❌
+
+3. COMPUTED STYLES ON PRODUCTION
+   .theme-notch position:     static (WRONG - should be: fixed)
+   .theme-notch top:          auto (WRONG - should be: 84px)
+   .theme-notch right:        auto (WRONG - should be: max(8px, env(...)))
+   .theme-notch z-index:      auto (WRONG - should be: 12)
+   .theme-notch-panel display: block (WRONG - should be: grid)
+   .theme-notch-panel opacity: 1 (WRONG - should be: 0 initially)
+
+4. HTML MARKUP
+   ✅ Present and correct on both local and production
+   ✅ All classes and attributes in place
+   ✅ SVG glyph present
+
+5. JAVASCRIPT EXECUTION
+   ✅ Inline scripts ARE executing (no CSP block)
+   ✅ Theme initialization script runs
+   ✅ No JavaScript errors related to theme-notch
+
+6. NETWORK & CACHING
+   ✅ /styles/global.css returns [200] OK
+   ✅ File loads successfully
+   ❌ Content is stale/outdated
+
+================================================================================
+WHAT'S WORKING
+================================================================================
+
+✅ HTML markup is present and correct
+✅ JavaScript is executing without CSP errors
+✅ Local development (npm run dev) works perfectly
+✅ Local build (npm run build) generates correct CSS
+✅ Network requests succeed
+✅ Accessibility tree shows correct structure
+
+================================================================================
+WHAT'S BROKEN
+================================================================================
+
+❌ Production CSS file is missing theme-notch rules
+❌ CSS file size doesn't match local build
+❌ Theme notch appears inline instead of fixed position
+❌ Theme notch dropdown panel is not hidden initially
+❌ Theme notch styling is completely absent
+
+================================================================================
+ROOT CAUSE ANALYSIS
+================================================================================
+
+The production Docker image contains an OLDER version of the CSS file that was
+built BEFORE the theme-notch CSS rules were added to the source.
+
+This is a DEPLOYMENT/CACHING issue, not a build issue.
+
+Possible causes:
+1. Docker image was built from an older commit
+2. CSS file was not updated in the Docker image
+3. Stale build artifact is being served
+4. CI/CD pipeline didn't rebuild the image with latest source
+
+================================================================================
+VERIFICATION PERFORMED
+================================================================================
+
+✅ Navigated to https://santhoshj.com and /blog
+✅ Captured console errors and warnings
+✅ Checked network requests (global.css loads with [200])
+✅ Fetched and parsed production CSS file
+✅ Searched for .theme-notch selectors (0 matches found)
+✅ Inspected computed styles via browser DevTools
+✅ Verified HTML markup is present and correct
+✅ Confirmed inline scripts execute without CSP errors
+✅ Compared with local source CSS (rules present locally)
+✅ Ran local build and verified CSS includes theme-notch rules
+✅ Compared file sizes (24,279 bytes local vs ~17,628 bytes production)
+
+================================================================================
+RECOMMENDED FIX
+================================================================================
+
+OPTION 1: Rebuild and redeploy Docker image
+  $ docker compose build --no-cache
+  $ docker compose push
+  # Deploy new image to production
+
+OPTION 2: If using CI/CD
+  - Ensure latest commit is being built
+  - Verify Docker build includes latest site/dist/ output
+  - Check image is pushed with correct tag
+  - Redeploy image to production
+
+OPTION 3: Quick verification before deploying
+  - SSH into production server
+  - Check CSS file size: should be ~24,279 bytes (not ~17,628)
+  - Verify /styles/global.css contains "theme-notch" (30+ matches)
+  - If not, redeploy the Docker image
+
+================================================================================
+EXPECTED RESULT AFTER FIX
+================================================================================
+
+✅ Theme notch appears as a fixed button in top-right corner
+✅ Clicking reveals a dropdown panel with Dark/Light/Contrast options
+✅ Smooth animations and hover effects work
+✅ CSS file size matches local build (~24,279 bytes)
+✅ CSS file contains 30+ matches for "theme-notch"
+✅ Computed styles show correct positioning and display properties
+
+================================================================================
+FILES INVOLVED
+================================================================================
+
+Source:      site/public/styles/global.css (lines 306-457)
+Production:  https://santhoshj.com/styles/global.css (missing rules)
+Build:       Dockerfile and npm run build process
+HTML:        site/src/components/BaseLayout.astro (renders theme-notch markup)
+Local dist:  site/dist/styles/global.css (24,279 bytes - CORRECT)
+
+================================================================================
+CONCLUSION
+================================================================================
+
+The issue is NOT:
+  ❌ CSP blocking inline scripts
+  ❌ Missing HTML markup
+  ❌ JavaScript not executing
+  ❌ Browser caching
+
+The issue IS:
+  ✅ Production CSS file missing .theme-notch rules
+  ✅ Stale Docker image serving outdated CSS
+  ✅ Deployment/caching issue, not a build issue
+
+ACTION REQUIRED: Rebuild and redeploy Docker image with latest source code.
+
+================================================================================
diff --git a/Dockerfile b/Dockerfile
index bf278e1..cd3c778 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,6 +4,8 @@ WORKDIR /app/site
 
 ARG PUBLIC_ENABLE_SW=true
 ENV PUBLIC_ENABLE_SW=$PUBLIC_ENABLE_SW
+ARG PUBLIC_ASSET_VERSION
+ENV PUBLIC_ASSET_VERSION=$PUBLIC_ASSET_VERSION
 
 # Public, build-time config (baked into static HTML via Astro/Vite).
 ARG PUBLIC_SITE_URL
diff --git a/PRODUCTION_DIAGNOSIS.md b/PRODUCTION_DIAGNOSIS.md
new file mode 100644
index 0000000..9a68392
--- /dev/null
+++ b/PRODUCTION_DIAGNOSIS.md
@@ -0,0 +1,294 @@
+# Production Theme Notch Styling Issue - Diagnostic Report
+
+**Date**: 2026-02-10  
+**Status**: CRITICAL - CSS rules missing in production
+
+---
+
+## Executive Summary
+
+The theme notch component appears as plain buttons in normal document flow on production (https://santhoshj.com) because **the CSS rules for `.theme-notch` and related selectors are completely absent from the served `/styles/global.css` file**.
+
+---
+
+## Evidence
+
+### 1. CSS File Status
+- **Local file**: `site/public/styles/global.css` ✅ **CONTAINS** `.theme-notch` rules (lines 306-457)
+- **Production file**: `https://santhoshj.com/styles/global.css` ❌ **MISSING** `.theme-notch` rules
+- **File size**: Local = 1215 lines; Production = ~17,628 bytes (109 CSS rules)
+- **Network status**: [200] OK - file loads successfully
+
+### 2. CSS Rules Missing in Production
+
+**Local CSS (lines 306-457) includes:**
+```css
+.theme-notch {
+  position: fixed;
+  top: var(--theme-notch-top);
+  right: max(8px, env(safe-area-inset-right));
+  z-index: 12;
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  pointer-events: none;
+}
+
+.theme-notch-panel {
+  position: absolute;
+  right: 60px;
+  top: 0;
+  display: grid;
+  gap: 6px;
+  padding: 12px;
+  border-radius: 16px;
+  border: 1px solid var(--stroke-mid);
+  background: var(--surface-1);
+  opacity: 0;
+  transform: translateX(10px) scale(0.98);
+  visibility: hidden;
+  pointer-events: none;
+  transition: opacity 160ms ease, transform 160ms ease, visibility 0s linear 160ms;
+}
+
+.theme-notch-handle { ... }
+.theme-notch-glyph { ... }
+.theme-notch-option { ... }
+.theme-notch-dot { ... }
+/* + media queries and forced-colors rules */
+```
+
+**Production CSS**: ❌ **ZERO** matches for `.theme-notch*` selectors
+
+### 3. Computed Styles on Production
+
+**Actual computed styles (from browser DevTools):**
+```
+.theme-notch:
+  position: static (WRONG - should be: fixed)
+  top: auto (WRONG - should be: 84px)
+  right: auto (WRONG - should be: max(8px, env(safe-area-inset-right)))
+  display: block (CORRECT - but only by accident)
+  opacity: 1 (CORRECT - but only by accident)
+  visibility: visible (CORRECT - but only by accident)
+  z-index: auto (WRONG - should be: 12)
+
+.theme-notch-panel:
+  position: static (WRONG - should be: absolute)
+  top: auto (WRONG - should be: 0)
+  right: auto (WRONG - should be: 60px)
+  display: block (WRONG - should be: grid)
+  opacity: 1 (WRONG - should be: 0 initially)
+  visibility: visible (WRONG - should be: hidden initially)
+```
+
+### 4. HTML Markup Status
+
+✅ **Present and correct:**
+- `<aside class="theme-notch" aria-label="Theme" data-theme-notch="" data-open="false">`
+- `<div class="theme-notch-panel" id="theme-notch-panel" role="radiogroup" aria-label="Theme selector">`
+- `<button class="theme-notch-option" data-theme-option="dark|light|contrast" role="radio" aria-checked="...">`
+- SVG glyph present in `.theme-notch-glyph`
+
+### 5. JavaScript Execution
+
+✅ **Inline scripts ARE executing** (no CSP block):
+- Theme initialization script runs
+- Service worker registration attempted (fails due to unrelated script fetch error)
+- Navigation toggle script runs
+- Image lazy-load script runs
+
+**Console errors (unrelated to theme-notch CSS):**
+- `[ERROR] An unknown error occurred when fetching the script` (service worker)
+- `[ERROR] Failed to load resource: net::ERR_INSUFFICIENT_RESOURCES` (analytics)
+
+### 6. Network & Caching
+
+- `/styles/global.css` returns **[200] OK**
+- No cache headers preventing updates detected
+- File loads successfully but content is stale/incomplete
+
+---
+
+## Root Cause Analysis
+
+### Hypothesis: Build/Deployment Issue
+
+The production CSS file is **missing the theme-notch rules entirely**, suggesting:
+
+1. **Build process did not include the CSS** - The CSS file was generated/minified without the theme-notch section
+2. **Stale build artifact** - An older version of global.css is being served
+3. **CSS file truncation** - The build process may have failed to include lines 306-457 from the source
+4. **Incorrect build output** - The CSS bundler/minifier may have stripped unused rules (unlikely, as the HTML uses the classes)
+
+### Why It Works Locally
+
+- `npm run dev` serves the source CSS directly from `site/public/styles/global.css`
+- All rules are present and applied correctly
+- Theme notch appears as a fixed, positioned element in the top-right corner
+
+### Why It Fails in Production
+
+- Docker build likely runs `npm run build` which may:
+  - Minify/bundle CSS differently
+  - Use a different CSS source file
+  - Strip rules based on unused CSS detection
+  - Output to a different location than `site/public/styles/global.css`
+
+---
+
+## Visual Impact
+
+**Expected (Local):**
+- Theme notch appears as a fixed button in top-right corner
+- Clicking reveals a dropdown panel with Dark/Light/Contrast options
+- Smooth animations and hover effects
+
+**Actual (Production):**
+- Theme notch buttons appear inline in normal document flow
+- No positioning, no dropdown panel
+- Buttons are unstyled (only inherit default browser styles)
+- Appears as plain radio buttons in the accessibility tree
+
+---
+
+## Verification Steps Performed
+
+✅ Navigated to https://santhoshj.com and /blog  
+✅ Captured console errors and warnings  
+✅ Checked network requests (global.css loads with [200])  
+✅ Fetched and parsed production CSS file  
+✅ Searched for `.theme-notch` selectors (0 matches)  
+✅ Inspected computed styles via browser DevTools  
+✅ Verified HTML markup is present and correct  
+✅ Confirmed inline scripts execute without CSP errors  
+✅ Compared with local source CSS (rules present locally)  
+
+---
+
+## Recommended Actions
+
+1. **Immediate**: Check the Docker build process
+   - Verify `npm run build` output includes theme-notch CSS
+   - Check if CSS is being minified/bundled to a different file
+   - Ensure `site/public/styles/global.css` is copied to the Docker image
+
+2. **Verify**: Rebuild and redeploy
+   - Run `npm run build` locally and inspect the output CSS
+   - Check if `dist/styles/global.css` (or equivalent) contains theme-notch rules
+   - Verify the Docker image includes the correct CSS file
+
+3. **Debug**: Add build logging
+   - Log CSS file size before/after minification
+   - Verify the CSS source file is being read correctly
+   - Check for any build warnings about unused CSS
+
+4. **Test**: Validate production deployment
+   - After fix, verify `/styles/global.css` contains theme-notch rules
+   - Check computed styles in production browser DevTools
+   - Confirm theme notch appears in correct position
+
+---
+
+## Files Involved
+
+- **Source**: `site/public/styles/global.css` (lines 306-457)
+- **Production**: `https://santhoshj.com/styles/global.css` (missing rules)
+- **Build**: `Dockerfile` and `npm run build` process
+- **HTML**: `site/src/components/BaseLayout.astro` (renders theme-notch markup)
+
+---
+
+## Conclusion
+
+**The issue is NOT:**
+- ❌ CSP blocking inline scripts
+- ❌ Missing HTML markup
+- ❌ JavaScript not executing
+- ❌ Browser caching (file loads fresh)
+
+**The issue IS:**
+- ✅ **Production CSS file missing `.theme-notch` rules**
+- ✅ **Build/deployment process not including complete CSS**
+
+The fix requires investigating the Docker build and CSS bundling process to ensure all CSS rules are included in the production output.
+
+---
+
+## CRITICAL UPDATE: Root Cause Identified
+
+### Build Verification Results
+
+**Local Build (npm run build):**
+- ✅ CSS file generated: `site/dist/styles/global.css`
+- ✅ File size: **24,279 bytes**
+- ✅ Theme-notch rules: **30 matches** found
+- ✅ All CSS rules present and correct
+
+**Production Server:**
+- ❌ CSS file served: `https://santhoshj.com/styles/global.css`
+- ❌ File size: **~17,628 bytes** (SMALLER than local build)
+- ❌ Theme-notch rules: **0 matches** found
+- ❌ CSS is STALE/OUTDATED
+
+### Conclusion
+
+**The production server is serving an OLD version of the CSS file that was built BEFORE the theme-notch CSS rules were added to the source.**
+
+This is a **deployment/caching issue**, not a build issue.
+
+### Why This Happened
+
+1. The theme-notch CSS rules exist in the source (`site/public/styles/global.css`)
+2. The local build correctly includes them in the output (`site/dist/styles/global.css`)
+3. **BUT** the production Docker image contains an older version of the CSS file
+4. This suggests:
+   - The Docker image was built from an older commit
+   - OR the CSS file was not updated in the Docker image
+   - OR there's a caching layer serving stale content
+
+### Fix Required
+
+**Option 1: Rebuild and redeploy the Docker image**
+```bash
+docker compose build --no-cache
+docker compose push
+# Deploy new image to production
+```
+
+**Option 2: If using CI/CD**
+- Ensure the latest commit is being built
+- Verify the Docker build includes the latest `site/dist/` output
+- Check that the image is being pushed with the correct tag
+- Redeploy the image to production
+
+**Option 3: Quick verification**
+- SSH into production server
+- Check the CSS file size: should be ~24,279 bytes (not ~17,628)
+- Verify `/styles/global.css` contains "theme-notch" (30+ matches)
+- If not, redeploy the Docker image
+
+---
+
+## Summary Table
+
+| Aspect | Local | Production | Status |
+|--------|-------|-----------|--------|
+| CSS file exists | ✅ Yes | ✅ Yes | OK |
+| File size | 24,279 bytes | ~17,628 bytes | ❌ MISMATCH |
+| theme-notch rules | 30 matches | 0 matches | ❌ MISSING |
+| HTML markup | ✅ Present | ✅ Present | OK |
+| JavaScript | ✅ Executing | ✅ Executing | OK |
+| Computed styles | ✅ Correct | ❌ Wrong | BROKEN |
+| Visual result | ✅ Fixed notch | ❌ Inline buttons | BROKEN |
+
+---
+
+## Next Steps
+
+1. **Verify the fix**: Rebuild Docker image with latest source
+2. **Deploy**: Push new image to production
+3. **Test**: Verify `/styles/global.css` is ~24,279 bytes and contains theme-notch rules
+4. **Validate**: Check production site - theme notch should appear in top-right corner
+5. **Monitor**: Watch for any other stale assets
+
diff --git a/blog-screenshot.png b/blog-screenshot.png
new file mode 100644
index 0000000..0ae80b1
Binary files /dev/null and b/blog-screenshot.png differ
diff --git a/deploy/nginx.conf b/deploy/nginx.conf
index 0905c4d..57ce37b 100644
--- a/deploy/nginx.conf
+++ b/deploy/nginx.conf
@@ -6,6 +6,16 @@ server {
   index index.html;
 
   # Static assets
+  location = /sw.js {
+    add_header Cache-Control "no-cache, no-store, must-revalidate" always;
+    try_files $uri =404;
+  }
+
+  location = /styles/global.css {
+    add_header Cache-Control "no-cache" always;
+    try_files $uri =404;
+  }
+
   location / {
     # Serve directory index pages without requiring a trailing slash.
     # This fixes /videos (and similar) resolving to /videos/index.html.
diff --git a/docker-compose.yml b/docker-compose.yml
index 27d3800..134c9bf 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -7,6 +7,7 @@ services:
       args:
         # Build-time toggle for service worker registration in the generated static HTML.
         PUBLIC_ENABLE_SW: ${PUBLIC_ENABLE_SW:-true}
+        PUBLIC_ASSET_VERSION: ${PUBLIC_ASSET_VERSION:-}
         # Public, build-time config baked into the HTML.
         PUBLIC_SITE_URL: ${PUBLIC_SITE_URL:-}
         PUBLIC_UMAMI_SCRIPT_URL: ${PUBLIC_UMAMI_SCRIPT_URL:-}
diff --git a/homepage-screenshot.png b/homepage-screenshot.png
new file mode 100644
index 0000000..508031b
Binary files /dev/null and b/homepage-screenshot.png differ
diff --git a/site/public/sw.js b/site/public/sw.js
index fa5ecde..ca4503e 100644
--- a/site/public/sw.js
+++ b/site/public/sw.js
@@ -4,14 +4,26 @@
    - Images: cache-first with bounded eviction
 */
 
-// Bump this value on deploy to invalidate caches.
-const CACHE_VERSION = "v4";
+const cacheVersionFromUrl = (() => {
+  try {
+    const v = new URL(self.location.href).searchParams.get("v");
+    if (!v) return null;
+    if (!/^[a-zA-Z0-9._-]{1,64}$/.test(v)) return null;
+    return v;
+  } catch {
+    return null;
+  }
+})();
+
+const CACHE_VERSION = cacheVersionFromUrl ? `v-${cacheVersionFromUrl}` : "v4";
 
 const CACHE_SHELL = `shell-${CACHE_VERSION}`;
 const CACHE_PAGES = `pages-${CACHE_VERSION}`;
 const CACHE_MEDIA = `media-${CACHE_VERSION}`;
 
-const SHELL_ASSETS = ["/", "/styles/global.css", "/favicon.png", "/robots.txt"];
+const assetSuffix = cacheVersionFromUrl ? `?v=${encodeURIComponent(cacheVersionFromUrl)}` : "";
+
+const SHELL_ASSETS = ["/", `/styles/global.css${assetSuffix}`, "/favicon.png", "/robots.txt"];
 
 // Cache.addAll() throws if there are any duplicate requests.
 const SHELL_ASSETS_UNIQUE = Array.from(new Set(SHELL_ASSETS));
diff --git a/site/src/env.d.ts b/site/src/env.d.ts
index 64c7bac..08d9b7c 100644
--- a/site/src/env.d.ts
+++ b/site/src/env.d.ts
@@ -5,6 +5,7 @@ interface ImportMetaEnv {
   readonly PUBLIC_UMAMI_SCRIPT_URL?: string;
   readonly PUBLIC_UMAMI_WEBSITE_ID?: string;
   readonly PUBLIC_ENABLE_SW?: string;
+  readonly PUBLIC_ASSET_VERSION?: string;
 }
 
 interface ImportMeta {
diff --git a/site/src/layouts/BaseLayout.astro b/site/src/layouts/BaseLayout.astro
index 8133e32..31f6f8b 100644
--- a/site/src/layouts/BaseLayout.astro
+++ b/site/src/layouts/BaseLayout.astro
@@ -13,6 +13,8 @@ const cfg = getPublicConfig();
 
 const siteUrl = (cfg.siteUrl || "http://localhost:4321").replace(/\/$/, "");
 const canonicalUrl = `${siteUrl}${canonicalPath.startsWith("/") ? canonicalPath : `/${canonicalPath}`}`;
+
+const assetSuffix = cfg.assetVersion ? `?v=${encodeURIComponent(cfg.assetVersion)}` : "";
 ---
 
 <!doctype html>
@@ -48,7 +50,7 @@ const canonicalUrl = `${siteUrl}${canonicalPath.startsWith("/") ? canonicalPath
       rel="stylesheet"
     />
 
-    <link rel="stylesheet" href="/styles/global.css" />
+    <link rel="stylesheet" href={`/styles/global.css${assetSuffix}`} />
     
     <script is:inline>
       (() => {
@@ -117,12 +119,13 @@ const canonicalUrl = `${siteUrl}${canonicalPath.startsWith("/") ? canonicalPath
       // Register SW only in production builds (Astro sets import.meta.env.PROD at build time).
       // Allow opting out via PUBLIC_ENABLE_SW="false".
       import.meta.env.PROD && import.meta.env.PUBLIC_ENABLE_SW !== "false" ? (
-        <script is:inline>
+        <script is:inline define:vars={{ assetSuffix }}>
           if ("serviceWorker" in navigator) {
             // SW requires HTTPS (or localhost). In prod we expect HTTPS.
             window.addEventListener("load", () => {
+              const swUrl = "/sw.js" + assetSuffix;
               navigator.serviceWorker
-                .register("/sw.js", { scope: "/", updateViaCache: "none" })
+                .register(swUrl, { scope: "/", updateViaCache: "none" })
                 .catch((err) => {
                 // Progressive enhancement; keep failures non-fatal.
                 console.warn("Service worker registration failed", err);
diff --git a/site/src/lib/config.ts b/site/src/lib/config.ts
index 0739bf1..2e12ac8 100644
--- a/site/src/lib/config.ts
+++ b/site/src/lib/config.ts
@@ -1,5 +1,6 @@
 type PublicConfig = {
   siteUrl?: string;
+  assetVersion?: string;
   umami?: {
     scriptUrl: string;
     websiteId: string;
@@ -23,11 +24,13 @@ type IngestConfig = {
 
 export function getPublicConfig(): PublicConfig {
   const siteUrl = import.meta.env.PUBLIC_SITE_URL;
+  const assetVersion = import.meta.env.PUBLIC_ASSET_VERSION;
   const scriptUrl = import.meta.env.PUBLIC_UMAMI_SCRIPT_URL;
   const websiteId = import.meta.env.PUBLIC_UMAMI_WEBSITE_ID;
 
   return {
     siteUrl,
+    assetVersion,
     umami: scriptUrl && websiteId ? { scriptUrl, websiteId } : undefined,
   };
 }