fix: WP-Admin CSS conflicts and add-to-cart redirect

- Fix CSS conflicts between WP-Admin and SPA (radio buttons, chart text)
- Add Tailwind important selector scoped to #woonoow-admin-app
- Remove overly aggressive inline SVG styles from Assets.php
- Add targeted WordPress admin CSS overrides in index.css
- Fix add-to-cart redirect to use woocommerce_add_to_cart_redirect filter
- Let WooCommerce handle cart operations natively for proper session management
- Remove duplicate tailwind.config.cjs

admin-spa/src/routes/Products/Edit.tsx

@@ -127,6 +127,7 @@ export default function ProductEdit() {
         onSubmit={handleSubmit}
         formRef={formRef}
         hideSubmitButton={true}
+        productId={product.id}
       />
 
       {/* Level 1 compatibility: Custom meta fields from plugins */}

admin-spa/src/routes/Products/partials/DirectCartLinks.tsx

@@ -0,0 +1,215 @@
+import React, { useState } from 'react';
+import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui/card';
+import { Button } from '@/components/ui/button';
+import { Input } from '@/components/ui/input';
+import { Label } from '@/components/ui/label';
+import { Copy, Check, ExternalLink } from 'lucide-react';
+import { toast } from 'sonner';
+
+interface DirectCartLinksProps {
+  productId: number;
+  productType: 'simple' | 'variable';
+  variations?: Array<{
+    id: number;
+    name: string;
+    attributes: Record<string, string>;
+  }>;
+}
+
+export function DirectCartLinks({ productId, productType, variations = [] }: DirectCartLinksProps) {
+  const [quantity, setQuantity] = useState(1);
+  const [copiedLink, setCopiedLink] = useState<string | null>(null);
+
+  const siteUrl = window.location.origin;
+  const spaPagePath = '/store'; // This should ideally come from settings
+
+  const generateLink = (variationId?: number, redirect: 'cart' | 'checkout' = 'cart') => {
+    const params = new URLSearchParams();
+    params.set('add-to-cart', productId.toString());
+    if (variationId) {
+      params.set('variation_id', variationId.toString());
+    }
+    if (quantity > 1) {
+      params.set('quantity', quantity.toString());
+    }
+    params.set('redirect', redirect);
+    
+    return `${siteUrl}${spaPagePath}?${params.toString()}`;
+  };
+
+  const copyToClipboard = async (link: string, label: string) => {
+    try {
+      await navigator.clipboard.writeText(link);
+      setCopiedLink(link);
+      toast.success(`${label} link copied!`);
+      setTimeout(() => setCopiedLink(null), 2000);
+    } catch (err) {
+      toast.error('Failed to copy link');
+    }
+  };
+
+  const LinkRow = ({ 
+    label, 
+    link, 
+    description 
+  }: { 
+    label: string; 
+    link: string; 
+    description?: string;
+  }) => {
+    const isCopied = copiedLink === link;
+    
+    return (
+      <div className="space-y-2">
+        <div className="flex items-center justify-between">
+          <Label className="text-sm font-medium">{label}</Label>
+          <div className="flex gap-2">
+            <Button
+              type="button"
+              size="sm"
+              variant="outline"
+              onClick={() => copyToClipboard(link, label)}
+            >
+              {isCopied ? (
+                <>
+                  <Check className="h-4 w-4 mr-1" />
+                  Copied
+                </>
+              ) : (
+                <>
+                  <Copy className="h-4 w-4 mr-1" />
+                  Copy
+                </>
+              )}
+            </Button>
+            <Button
+              type="button"
+              size="sm"
+              variant="ghost"
+              onClick={() => window.open(link, '_blank')}
+            >
+              <ExternalLink className="h-4 w-4" />
+            </Button>
+          </div>
+        </div>
+        <Input
+          value={link}
+          readOnly
+          className="font-mono text-xs"
+          onClick={(e) => e.currentTarget.select()}
+        />
+        {description && (
+          <p className="text-xs text-muted-foreground">{description}</p>
+        )}
+      </div>
+    );
+  };
+
+  return (
+    <Card>
+      <CardHeader>
+        <CardTitle>Direct-to-Cart Links</CardTitle>
+        <CardDescription>
+          Generate copyable links that add this product to cart and redirect to cart or checkout page.
+          Perfect for landing pages, email campaigns, and social media.
+        </CardDescription>
+      </CardHeader>
+      <CardContent className="space-y-6">
+        {/* Quantity Selector */}
+        <div className="space-y-2">
+          <Label htmlFor="link-quantity">Default Quantity</Label>
+          <Input
+            id="link-quantity"
+            type="number"
+            min="1"
+            value={quantity}
+            onChange={(e) => setQuantity(Math.max(1, parseInt(e.target.value) || 1))}
+            className="w-32"
+          />
+          <p className="text-xs text-muted-foreground">
+            Set quantity to 1 to exclude from URL (cleaner links)
+          </p>
+        </div>
+
+        {/* Simple Product Links */}
+        {productType === 'simple' && (
+          <div className="space-y-4">
+            <div className="border-b pb-2">
+              <h4 className="font-medium">Simple Product Links</h4>
+            </div>
+            
+            <LinkRow
+              label="Add to Cart"
+              link={generateLink(undefined, 'cart')}
+              description="Adds product to cart and shows cart page"
+            />
+            
+            <LinkRow
+              label="Direct to Checkout"
+              link={generateLink(undefined, 'checkout')}
+              description="Adds product to cart and goes directly to checkout"
+            />
+          </div>
+        )}
+
+        {/* Variable Product Links */}
+        {productType === 'variable' && variations.length > 0 && (
+          <div className="space-y-4">
+            <div className="border-b pb-2">
+              <h4 className="font-medium">Variable Product Links</h4>
+              <p className="text-xs text-muted-foreground mt-1">
+                {variations.length} variation(s) - Select a variation to generate links
+              </p>
+            </div>
+
+            <div className="space-y-2">
+              {variations.map((variation, index) => (
+                <details key={variation.id} className="group border rounded-lg">
+                  <summary className="cursor-pointer p-3 hover:bg-muted/50 flex items-center justify-between">
+                    <div className="flex-1">
+                      <span className="font-medium text-sm">{variation.name}</span>
+                      <span className="text-xs text-muted-foreground ml-2">
+                        (ID: {variation.id})
+                      </span>
+                    </div>
+                    <svg 
+                      className="w-4 h-4 transition-transform group-open:rotate-180" 
+                      fill="none" 
+                      stroke="currentColor" 
+                      viewBox="0 0 24 24"
+                    >
+                      <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 9l-7 7-7-7" />
+                    </svg>
+                  </summary>
+                  
+                  <div className="p-4 pt-0 space-y-3 border-t">
+                    <LinkRow
+                      label="Add to Cart"
+                      link={generateLink(variation.id, 'cart')}
+                    />
+                    
+                    <LinkRow
+                      label="Direct to Checkout"
+                      link={generateLink(variation.id, 'checkout')}
+                    />
+                  </div>
+                </details>
+              ))}
+            </div>
+          </div>
+        )}
+
+        {/* URL Parameters Reference */}
+        <div className="mt-6 p-4 bg-muted rounded-lg">
+          <h4 className="font-medium text-sm mb-2">URL Parameters Reference</h4>
+          <div className="space-y-1 text-xs text-muted-foreground">
+            <div><code className="bg-background px-1 py-0.5 rounded">add-to-cart</code> - Product ID (required)</div>
+            <div><code className="bg-background px-1 py-0.5 rounded">variation_id</code> - Variation ID (for variable products)</div>
+            <div><code className="bg-background px-1 py-0.5 rounded">quantity</code> - Quantity (default: 1)</div>
+            <div><code className="bg-background px-1 py-0.5 rounded">redirect</code> - Destination: <code>cart</code> or <code>checkout</code></div>
+          </div>
+        </div>
+      </CardContent>
+    </Card>
+  );
+}

admin-spa/src/routes/Products/partials/ProductFormTabbed.tsx

@@ -41,6 +41,7 @@ type Props = {
   className?: string;
   formRef?: React.RefObject<HTMLFormElement>;
   hideSubmitButton?: boolean;
+  productId?: number;
 };
 
 export function ProductFormTabbed({
@@ -50,6 +51,7 @@ export function ProductFormTabbed({
   className,
   formRef,
   hideSubmitButton = false,
+  productId,
 }: Props) {
   // Form state
   const [name, setName] = useState(initial?.name || '');
@@ -225,6 +227,7 @@ export function ProductFormTabbed({
               variations={variations}
               setVariations={setVariations}
               regularPrice={regularPrice}
+              productId={productId}
             />
           </FormSection>
         )}

admin-spa/src/routes/Products/partials/tabs/VariationsTab.tsx

@@ -7,7 +7,7 @@ import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/com
 import { Checkbox } from '@/components/ui/checkbox';
 import { Badge } from '@/components/ui/badge';
 import { Separator } from '@/components/ui/separator';
-import { Plus, X, Layers, Image as ImageIcon } from 'lucide-react';
+import { Plus, X, Layers, Image as ImageIcon, Copy, Check, ExternalLink } from 'lucide-react';
 import { toast } from 'sonner';
 import { getStoreCurrency } from '@/lib/currency';
 import { openWPMediaImage } from '@/lib/wp-media';
@@ -30,6 +30,7 @@ type VariationsTabProps = {
   variations: ProductVariant[];
   setVariations: (value: ProductVariant[]) => void;
   regularPrice: string;
+  productId?: number;
 };
 
 export function VariationsTab({
@@ -38,8 +39,33 @@ export function VariationsTab({
   variations,
   setVariations,
   regularPrice,
+  productId,
 }: VariationsTabProps) {
   const store = getStoreCurrency();
+  const [copiedLink, setCopiedLink] = useState<string | null>(null);
+  
+  const siteUrl = window.location.origin;
+  const spaPagePath = '/store';
+  
+  const generateLink = (variationId: number, redirect: 'cart' | 'checkout' = 'cart') => {
+    if (!productId) return '';
+    const params = new URLSearchParams();
+    params.set('add-to-cart', productId.toString());
+    params.set('variation_id', variationId.toString());
+    params.set('redirect', redirect);
+    return `${siteUrl}${spaPagePath}?${params.toString()}`;
+  };
+  
+  const copyToClipboard = async (link: string, label: string) => {
+    try {
+      await navigator.clipboard.writeText(link);
+      setCopiedLink(link);
+      toast.success(`${label} link copied!`);
+      setTimeout(() => setCopiedLink(null), 2000);
+    } catch (err) {
+      toast.error('Failed to copy link');
+    }
+  };
   
   const addAttribute = () => {
     setAttributes([...attributes, { name: '', options: [], variation: false }]);
@@ -305,6 +331,45 @@ export function VariationsTab({
                         }}
                       />
                     </div>
+                    
+                    {/* Direct Cart Links */}
+                    {productId && variation.id && (
+                      <div className="mt-4 pt-4 border-t space-y-2">
+                        <Label className="text-xs font-medium text-muted-foreground">
+                          {__('Direct-to-Cart Links')}
+                        </Label>
+                        <div className="flex gap-2">
+                          <Button
+                            type="button"
+                            size="sm"
+                            variant="outline"
+                            onClick={() => copyToClipboard(generateLink(variation.id!, 'cart'), 'Cart')}
+                            className="flex-1"
+                          >
+                            {copiedLink === generateLink(variation.id!, 'cart') ? (
+                              <Check className="h-3 w-3 mr-1" />
+                            ) : (
+                              <Copy className="h-3 w-3 mr-1" />
+                            )}
+                            {__('Copy Cart Link')}
+                          </Button>
+                          <Button
+                            type="button"
+                            size="sm"
+                            variant="outline"
+                            onClick={() => copyToClipboard(generateLink(variation.id!, 'checkout'), 'Checkout')}
+                            className="flex-1"
+                          >
+                            {copiedLink === generateLink(variation.id!, 'checkout') ? (
+                              <Check className="h-3 w-3 mr-1" />
+                            ) : (
+                              <Copy className="h-3 w-3 mr-1" />
+                            )}
+                            {__('Copy Checkout Link')}
+                          </Button>
+                        </div>
+                      </div>
+                    )}
                   </CardContent>
                 </Card>
               ))}