fix(pdf): use html2canvas onclone to inline all styles before render

Previous flattenColors approach failed because html2canvas reads CSS
rules from stylesheets, not computed styles. Now in the onclone callback:
1. Walk all elements, get computed styles from original doc
2. Set every property as inline style on cloned elements
3. Remove all <style> tags and <link rel=stylesheet> from clone
This ensures html2canvas never encounters raw color-mix() in stylesheets.

public/resume-5.html

@@ -1034,37 +1034,32 @@
           photoReady = Promise.resolve(null);
         }
 
-        function flattenColors(el) {
-          var s = getComputedStyle(el);
-          var props = ['color','background-color','border-color','border-top-color','border-bottom-color','border-left-color','border-right-color','box-shadow','background'];
-          var originals = {};
-          props.forEach(function(p) {
-            var v = s.getPropertyValue(p);
-            if (v && v.indexOf('color-mix') !== -1) {
-              originals[p] = el.style.getPropertyValue(p);
-              el.style.setProperty(p, v);
+        function cloneAndInlineStyles(original) {
+          var clone = original.cloneNode(true);
+          var origEls = original.querySelectorAll('*');
+          var cloneEls = clone.querySelectorAll('*');
+          var allProps = ['color','background-color','background','border-color','border-top-color','border-bottom-color','border-left-color','border-right-color','box-shadow','opacity','font-family','font-size','font-weight','line-height','letter-spacing','text-align','text-decoration','text-transform','padding','padding-top','padding-bottom','padding-left','padding-right','margin','margin-top','margin-bottom','margin-left','margin-right','display','flex-direction','align-items','justify-content','gap','grid-template-columns','grid-column','width','height','min-width','min-height','max-width','max-height','position','top','bottom','left','right','z-index','overflow','border-radius','border-width','border-style','white-space','list-style-type','object-fit'];
+          for (var i = 0; i < origEls.length && i < cloneEls.length; i++) {
+            var cs = getComputedStyle(origEls[i]);
+            for (var j = 0; j < allProps.length; j++) {
+              var v = cs.getPropertyValue(allProps[j]);
+              if (v) cloneEls[i].style.setProperty(allProps[j], v);
             }
-          });
-          var children = el.children;
-          for (var i = 0; i < children.length; i++) {
-            flattenColors(children[i]);
           }
-          return originals;
-        }
-
-        function restoreColors(el, originals) {
-          Object.keys(originals).forEach(function(p) {
-            if (originals[p]) el.style.setProperty(p, originals[p]);
-            else el.style.removeProperty(p);
-          });
-          var children = el.children;
-          for (var i = 0; i < children.length; i++) {
-            restoreColors(children[i], originals);
+          var origCs = getComputedStyle(original);
+          for (var j = 0; j < allProps.length; j++) {
+            var v = origCs.getPropertyValue(allProps[j]);
+            if (v) clone.style.setProperty(allProps[j], v);
           }
+          var styles = clone.querySelectorAll('style');
+          for (var s = 0; s < styles.length; s++) styles[s].textContent = '';
+          var links = clone.querySelectorAll('link[rel="stylesheet"]');
+          for (var l = 0; l < links.length; l++) links[l].remove();
+          return clone;
         }
 
         photoReady.then(function (dataUrl) {
-          console.log('[PDF] step 1: photo ready, dataUrl:', dataUrl ? 'yes (' + dataUrl.length + ' chars)' : 'null');
+          console.log('[PDF] step 1: photo ready');
           if (dataUrl && photo) photo.setAttribute('src', dataUrl);
           console.log('[PDF] step 2: waiting for fonts...');
           return document.fonts ? document.fonts.ready : Promise.resolve();
@@ -1074,19 +1069,41 @@
           return loadScript(CDN);
         })
         .then(function () {
-          console.log('[PDF] step 4: html2pdf loaded, type:', typeof html2pdf);
-          console.log('[PDF] step 4: flattening color-mix() values...');
-          var snapshot = flattenColors(doc);
-          console.log('[PDF] step 4: starting generation...');
+          console.log('[PDF] step 4: html2pdf loaded, generating...');
           return html2pdf().from(doc).set({
             margin: 10,
             filename: 'Mamadaev_Resume.pdf',
             image: { type: 'jpeg', quality: 0.95 },
-            html2canvas: { scale: 2, useCORS: true, backgroundColor: '#fff' },
+            html2canvas: {
+              scale: 2,
+              useCORS: true,
+              backgroundColor: '#fff',
+              onclone: function (clonedDoc) {
+                console.log('[PDF] onclone: inlining styles...');
+                var clonedEl = clonedDoc.querySelector('.resume-doc');
+                if (!clonedEl) return;
+                var origEls = doc.querySelectorAll('*');
+                var cloneEls = clonedEl.querySelectorAll('*');
+                var props = ['color','background-color','background','border-color','border-top-color','border-bottom-color','border-left-color','border-right-color','box-shadow','opacity','font-family','font-size','font-weight','line-height','letter-spacing','text-align','text-decoration','text-transform','padding','padding-top','padding-bottom','padding-left','padding-right','margin','margin-top','margin-bottom','margin-left','margin-right','display','flex-direction','align-items','justify-content','gap','grid-template-columns','grid-column','width','height','min-width','min-height','max-width','max-height','position','top','bottom','left','right','z-index','overflow','border-radius','border-width','border-style','white-space','list-style-type','object-fit'];
+                for (var i = 0; i < origEls.length && i < cloneEls.length; i++) {
+                  var cs = getComputedStyle(origEls[i]);
+                  for (var j = 0; j < props.length; j++) {
+                    var v = cs.getPropertyValue(props[j]);
+                    if (v) cloneEls[i].style.setProperty(props[j], v);
+                  }
+                }
+                var rootCs = getComputedStyle(doc);
+                for (var j = 0; j < props.length; j++) {
+                  var v = rootCs.getPropertyValue(props[j]);
+                  if (v) clonedEl.style.setProperty(props[j], v);
+                }
+                clonedDoc.querySelectorAll('style').forEach(function(s){ s.textContent = ''; });
+                clonedDoc.querySelectorAll('link[rel="stylesheet"]').forEach(function(l){ l.remove(); });
+                console.log('[PDF] onclone: styles inlined');
+              }
+            },
             jsPDF: { unit: 'mm', format: 'a4', orientation: 'portrait' }
-          }).save().then(function() {
-            restoreColors(doc, snapshot);
-          });
+          }).save();
         })
         .then(function (result) {
           console.log('[PDF] step 5: generation COMPLETE, result:', result);

src/pages/resume-5.html

@@ -903,37 +903,32 @@
           photoReady = Promise.resolve(null);
         }
 
-        function flattenColors(el) {
-          var s = getComputedStyle(el);
-          var props = ['color','background-color','border-color','border-top-color','border-bottom-color','border-left-color','border-right-color','box-shadow','background'];
-          var originals = {};
-          props.forEach(function(p) {
-            var v = s.getPropertyValue(p);
-            if (v && v.indexOf('color-mix') !== -1) {
-              originals[p] = el.style.getPropertyValue(p);
-              el.style.setProperty(p, v);
+        function cloneAndInlineStyles(original) {
+          var clone = original.cloneNode(true);
+          var origEls = original.querySelectorAll('*');
+          var cloneEls = clone.querySelectorAll('*');
+          var allProps = ['color','background-color','background','border-color','border-top-color','border-bottom-color','border-left-color','border-right-color','box-shadow','opacity','font-family','font-size','font-weight','line-height','letter-spacing','text-align','text-decoration','text-transform','padding','padding-top','padding-bottom','padding-left','padding-right','margin','margin-top','margin-bottom','margin-left','margin-right','display','flex-direction','align-items','justify-content','gap','grid-template-columns','grid-column','width','height','min-width','min-height','max-width','max-height','position','top','bottom','left','right','z-index','overflow','border-radius','border-width','border-style','white-space','list-style-type','object-fit'];
+          for (var i = 0; i < origEls.length && i < cloneEls.length; i++) {
+            var cs = getComputedStyle(origEls[i]);
+            for (var j = 0; j < allProps.length; j++) {
+              var v = cs.getPropertyValue(allProps[j]);
+              if (v) cloneEls[i].style.setProperty(allProps[j], v);
             }
-          });
-          var children = el.children;
-          for (var i = 0; i < children.length; i++) {
-            flattenColors(children[i]);
           }
-          return originals;
-        }
-
-        function restoreColors(el, originals) {
-          Object.keys(originals).forEach(function(p) {
-            if (originals[p]) el.style.setProperty(p, originals[p]);
-            else el.style.removeProperty(p);
-          });
-          var children = el.children;
-          for (var i = 0; i < children.length; i++) {
-            restoreColors(children[i], originals);
+          var origCs = getComputedStyle(original);
+          for (var j = 0; j < allProps.length; j++) {
+            var v = origCs.getPropertyValue(allProps[j]);
+            if (v) clone.style.setProperty(allProps[j], v);
           }
+          var styles = clone.querySelectorAll('style');
+          for (var s = 0; s < styles.length; s++) styles[s].textContent = '';
+          var links = clone.querySelectorAll('link[rel="stylesheet"]');
+          for (var l = 0; l < links.length; l++) links[l].remove();
+          return clone;
         }
 
         photoReady.then(function (dataUrl) {
-          console.log('[PDF] step 1: photo ready, dataUrl:', dataUrl ? 'yes (' + dataUrl.length + ' chars)' : 'null');
+          console.log('[PDF] step 1: photo ready');
           if (dataUrl && photo) photo.setAttribute('src', dataUrl);
           console.log('[PDF] step 2: waiting for fonts...');
           return document.fonts ? document.fonts.ready : Promise.resolve();
@@ -943,19 +938,41 @@
           return loadScript(CDN);
         })
         .then(function () {
-          console.log('[PDF] step 4: html2pdf loaded, type:', typeof html2pdf);
-          console.log('[PDF] step 4: flattening color-mix() values...');
-          var snapshot = flattenColors(doc);
-          console.log('[PDF] step 4: starting generation...');
+          console.log('[PDF] step 4: html2pdf loaded, generating...');
           return html2pdf().from(doc).set({
             margin: 10,
             filename: 'Mamadaev_Resume.pdf',
             image: { type: 'jpeg', quality: 0.95 },
-            html2canvas: { scale: 2, useCORS: true, backgroundColor: '#fff' },
+            html2canvas: {
+              scale: 2,
+              useCORS: true,
+              backgroundColor: '#fff',
+              onclone: function (clonedDoc) {
+                console.log('[PDF] onclone: inlining styles...');
+                var clonedEl = clonedDoc.querySelector('.resume-doc');
+                if (!clonedEl) return;
+                var origEls = doc.querySelectorAll('*');
+                var cloneEls = clonedEl.querySelectorAll('*');
+                var props = ['color','background-color','background','border-color','border-top-color','border-bottom-color','border-left-color','border-right-color','box-shadow','opacity','font-family','font-size','font-weight','line-height','letter-spacing','text-align','text-decoration','text-transform','padding','padding-top','padding-bottom','padding-left','padding-right','margin','margin-top','margin-bottom','margin-left','margin-right','display','flex-direction','align-items','justify-content','gap','grid-template-columns','grid-column','width','height','min-width','min-height','max-width','max-height','position','top','bottom','left','right','z-index','overflow','border-radius','border-width','border-style','white-space','list-style-type','object-fit'];
+                for (var i = 0; i < origEls.length && i < cloneEls.length; i++) {
+                  var cs = getComputedStyle(origEls[i]);
+                  for (var j = 0; j < props.length; j++) {
+                    var v = cs.getPropertyValue(props[j]);
+                    if (v) cloneEls[i].style.setProperty(props[j], v);
+                  }
+                }
+                var rootCs = getComputedStyle(doc);
+                for (var j = 0; j < props.length; j++) {
+                  var v = rootCs.getPropertyValue(props[j]);
+                  if (v) clonedEl.style.setProperty(props[j], v);
+                }
+                clonedDoc.querySelectorAll('style').forEach(function(s){ s.textContent = ''; });
+                clonedDoc.querySelectorAll('link[rel="stylesheet"]').forEach(function(l){ l.remove(); });
+                console.log('[PDF] onclone: styles inlined');
+              }
+            },
             jsPDF: { unit: 'mm', format: 'a4', orientation: 'portrait' }
-          }).save().then(function() {
-            restoreColors(doc, snapshot);
-          });
+          }).save();
         })
         .then(function (result) {
           console.log('[PDF] step 5: generation COMPLETE, result:', result);