Fix column resizing in Pricing table

Improve resize logic with proper mouse delta calculation

src/components/PricingView.tsx

@@ -51,8 +51,15 @@ export function PricingView({ data, headers, onSaveRow, onCaptureState, onEdit,
   const [filterMode, setFilterMode] = useState<FilterMode>('all_errors');
   const [search, setSearch] = useState('');
   const [searchMode, setSearchMode] = useState<'all' | 'selected'>('all');
-  const [columnWidths, setColumnWidths] = useState<Record<string, number>>({});
+  const [columnWidths, setColumnWidths] = useState<Record<string, number>>({
+    articleNo: 100,
+    articleName: 220,
+    line: 100,
+    classification: 130,
+  });
   const [resizingColumn, setResizingColumn] = useState<string | null>(null);
+  const [resizeStartX, setResizeStartX] = useState<number | null>(null);
+  const [resizeStartWidth, setResizeStartWidth] = useState<number | null>(null);
   const tableRef = useRef<HTMLTableElement>(null);
   const [editingCell, setEditingCell] = useState<EditingCell | null>(null);
   const [savingCell, setSavingCell] = useState<{ rowIndex: number; colIndex: number } | null>(null);
@@ -114,36 +121,36 @@ export function PricingView({ data, headers, onSaveRow, onCaptureState, onEdit,
     setSearchMode('all');
   };
 
-  const handleResizeStart = (e: React.MouseEvent, colKey: string) => {
+  const handleResizeStart = (e: React.MouseEvent, colKey: string, currentWidth: number) => {
     e.preventDefault();
+    e.stopPropagation();
     setResizingColumn(colKey);
+    setResizeStartX(e.clientX);
+    setResizeStartWidth(currentWidth);
   };
 
   React.useEffect(() => {
+    if (!resizingColumn || resizeStartX === null || resizeStartWidth === null) return;
+
     const handleMouseMove = (e: MouseEvent) => {
-      if (!resizingColumn || !tableRef.current) return;
-      const th = tableRef.current.querySelector(`th[data-col-key="${resizingColumn}"]`) as HTMLElement;
-      if (!th) return;
-      const rect = th.getBoundingClientRect();
-      const newWidth = e.clientX - rect.left;
-      if (newWidth >= 50 && newWidth <= 400) {
+      const delta = e.clientX - resizeStartX;
+      const newWidth = Math.max(50, Math.min(400, resizeStartWidth + delta));
       setColumnWidths(prev => ({ ...prev, [resizingColumn]: newWidth }));
-      }
     };
 
     const handleMouseUp = () => {
       setResizingColumn(null);
+      setResizeStartX(null);
+      setResizeStartWidth(null);
     };
 
-    if (resizingColumn) {
-      document.addEventListener('mousemove', handleMouseMove as any);
+    document.addEventListener('mousemove', handleMouseMove);
     document.addEventListener('mouseup', handleMouseUp);
     return () => {
-        document.removeEventListener('mousemove', handleMouseMove as any);
+      document.removeEventListener('mousemove', handleMouseMove);
       document.removeEventListener('mouseup', handleMouseUp);
     };
-    }
-  }, [resizingColumn]);
+  }, [resizingColumn, resizeStartX, resizeStartWidth]);
 
   // ── Dynamic column detection ──────────────────────────────────────────────
   const { uvpIdx, srpCols, containerCols } = useMemo(() => {
@@ -656,7 +663,7 @@ export function PricingView({ data, headers, onSaveRow, onCaptureState, onEdit,
               <tr>
                 <th data-col-key="articleNo" style={{ width: columnWidths.articleNo || 100 }} className="text-left px-3 py-3 text-xs font-semibold text-slate-400 uppercase tracking-wider border-b border-slate-700 whitespace-nowrap relative">
                   Art. No.
-                  <div onMouseDown={(e) => handleResizeStart(e, 'articleNo')} className="absolute right-0 top-0 bottom-0 w-2 cursor-col-resize hover:bg-blue-500/30" />
+                  <div onMouseDown={(e) => handleResizeStart(e, 'articleNo', columnWidths.articleNo || 100)} className="absolute right-0 top-0 bottom-0 w-2 cursor-col-resize hover:bg-blue-500/30" />
                 </th>
                 <th data-col-key="articleName" style={{ width: columnWidths.articleName || 220 }} className="text-left px-3 py-3 text-xs font-semibold text-slate-400 uppercase tracking-wider border-b border-slate-700 group relative">
                   <div className="flex items-center gap-1"><span>Article Name</span>
@@ -923,9 +930,9 @@ export function PricingView({ data, headers, onSaveRow, onCaptureState, onEdit,
                   <tr
                     key={dataIndex}
                     className={cn(
-                      'border-b border-slate-700/50 transition-colors hover:bg-slate-700/20',
+                      'border-b border-slate-700/50 transition-colors',
                       isValidated 
-                        ? 'bg-emerald-500/10' 
+                        ? 'bg-green-400/30 border-l-4 border-l-green-400' // Vibrant high-visibility green
                         : saveStatus === 'error'
                           ? 'bg-red-400/20 border-l-4 border-l-red-500'
                           : saveStatus === 'pending'
@@ -1068,7 +1075,7 @@ export function PricingView({ data, headers, onSaveRow, onCaptureState, onEdit,
 
                     <td className={cn(
                       "px-2 py-2.5 sticky right-0 shadow-[-4px_0_8px_rgba(0,0,0,0.1)] transition-colors",
-                      isValidated ? "bg-[#1e2a25]" : "bg-slate-800",
+                      isValidated ? "bg-[#1b4d24]" : "bg-slate-800",
                       "group-hover:bg-slate-700/40"
                     )}>
                       <button