diff --git a/scripts/post-build.js b/scripts/post-build.js
index 36644f4..cc30d61 100644
--- a/scripts/post-build.js
+++ b/scripts/post-build.js
@@ -1,5 +1,5 @@
 #!/usr/bin/env node
-// Post-build class minifier - skips layout-critical + nomin-marked elements
+// Post-build class minifier - updates BOTH HTML classes AND CSS
 
 const fs = require('fs');
 const path = require('path');
@@ -8,36 +8,21 @@ const classMap = {};
 let idx = 0;
 
 function shouldSkip(c) {
-  // Icon/fa
-  if (c.startsWith('fa-') || c.includes('icon-fa')) return true;
-  if (c.startsWith('not-prose')) return true;
-  // no- prefixes
-  if (c.startsWith('no-')) return true;
-  // Variants (dark:, md:, etc.)
-  if (c.includes(':')) return true;
-  // Arbitrary values  
-  if (c.includes('[')) return true;
-  // All flexbox
-  if (c.startsWith('flex') || c.startsWith('items-') || c.startsWith('justify-') || c.startsWith('self-')) return true;
-  // Spacing
-  if (c.startsWith('gap-')) return true;
-  if (c.match(/^[mp](?:-|$|x|y|t|b|l|r)/)) return true;
-  // Widths/heights
-  if (c.startsWith('w-') || c.startsWith('h-') || c.startsWith('max-') || c.startsWith('min-')) return true;
-  // Border/radius
+  if (c.includes('fa-') || c.includes('icon-fa')) return true;
+  if (c.startsWith('no-') || c.startsWith('not-')) return true;
+  if (c.includes(':') || c.includes('[')) return true;
+  // if (c.startsWith('flex') || c.startsWith('items-') || c.startsWith('justify-') || c.startsWith('self-')) return true;
+  // if (c.startsWith('gap-') || c.startsWith('space-')) return true;
+  // if (c.match(/^[mp](?:-|$|x|y|t|b|l|r)/)) return true;
+  // if (c.startsWith('w-') || c.startsWith('h-')) return true;
+  // if (c.startsWith('max-') || c.startsWith('min-')) return true;
   if (c.startsWith('border') || c.startsWith('rounded')) return true;
-  // Images
-  if (c.startsWith('object-')) return true;
-  if (c.startsWith('space-')) return true;
-  // Font
+  // if (c.startsWith('object-')) return true;
   if (c.startsWith('font-')) return true;
-  // nowrap 
-  if (c.startsWith('text-nowrap')) return true;
-  if (c.startsWith('inline')) return true;
-  if (c.startsWith('text-xs') || c.startsWith('text-sm')) return true;
-  if (c.startsWith('bg-transparent')) return true;
-  if (c.startsWith('block')) return true;
-
+  // if (c.startsWith('text-xs') || c.startsWith('text-sm') || c.startsWith('text-')) return true;
+  // if (c.startsWith('inline') || c.startsWith('block')) return true;
+  // if (c.startsWith('bg-')) return true;
+  // if (c.startsWith('top-') || c.startsWith('bottom-') || c.startsWith('left-') || c.startsWith('right-')) return true;
   return false;
 }
 
@@ -49,28 +34,41 @@ function processFile(filePath) {
   
   // First pass: collect mappings
   matches.forEach(m => {
-    const fullClassAttr = m.slice(7, -1);
-    if (fullClassAttr.includes('nomin')) return;
-    const classArr = fullClassAttr.split(' ').filter(c => c);
-    classArr.forEach(c => {
-      if (shouldSkip(c)) return;
-      if (!classMap[c]) classMap[c] = 'c' + idx++;
+    const arr = m.slice(7, -1).split(' ').filter(c => c);
+    // if (arr.includes('nomin')) return;
+    arr.forEach(c => {
+      if (!shouldSkip(c) && !classMap[c]) classMap[c] = 'c' + idx++;
     });
   });
   
-  // Second pass: replace
+  // Second pass: replace in HTML
   matches.forEach(m => {
-    const fullClassAttr = m.slice(7, -1);
-    if (fullClassAttr.includes('nomin')) return;
-    const classArr = fullClassAttr.split(' ').filter(c => c);
-    const newArr = classArr.map(c => shouldSkip(c) ? c : classMap[c]);
-    const newClassAttr = newArr.join(' ');
-    if (newClassAttr !== fullClassAttr) {
-      html = html.replace(m, 'class="' + newClassAttr + '"');
+    const arr = m.slice(7, -1).split(' ').filter(c => c);
+    // if (arr.includes('nomin')) return;
+    const newArr = arr.map(c => shouldSkip(c) ? c : classMap[c]);
+    if (newArr.join(' ') !== arr.join(' ')) {
+      html = html.replace(m, 'class="' + newArr.join(' ') + '"');
       modified = true;
     }
   });
   
+  // Third pass: replace in CSS
+  const styleMatches = html.match(/<style>([\s\S]*?)<\/style>/g) || [];
+  if (styleMatches[0]) {
+    let newStyle = styleMatches[0];
+    Object.entries(classMap).forEach(([orig, short]) => {
+      if (shouldSkip(orig)) return;
+      // Escape special regex chars, replace - with \-
+      const escaped = orig.replace(/[.*+?^${}()|[\]\\]/g, '\\$&').replace(/-/g, '\\-');
+      const regex = new RegExp('\\.' + escaped + '([{:, >~]+)', 'g');
+      newStyle = newStyle.replace(regex, '.' + short + '$1');
+    });
+    if (newStyle !== styleMatches[0]) {
+      html = html.replace(styleMatches[0], newStyle);
+      modified = true;
+    }
+  }
+  
   if (modified) fs.writeFileSync(filePath, html);
 }
 
@@ -85,4 +83,4 @@ function walkDir(dir) {
 }
 
 walkDir('_site');
-console.log(`Minified ${Object.keys(classMap).length} classes`);
\ No newline at end of file
+console.log('Minified ' + idx + ' classes');
\ No newline at end of file