feat: implement compare functionality, checkout flow, and add 30 blog posts

components/shop/CartSummary.tsx

@@ -7,15 +7,14 @@ import Link from 'next/link';
 import { ShieldCheck, ArrowRight, Tag } from 'lucide-react';
 
 export function CartSummary() {
-  const { items, getTotals } = useCartStore();
+  const { items, getTotal } = useCartStore();
   const [promoCode, setPromoCode] = useState('');
   
   if (items.length === 0) return null;
 
-  const { subtotal, vat, total } = getTotals();
-
-  // Obliczamy ile pozycji ma montaż by wyświetlić odpowiednią informację
-  const itemsWithInstall = items.filter(i => i.withInstall).length;
+  const total = getTotal();
+  const subtotal = total / 1.23;
+  const vat = total - subtotal;
 
   return (
     <div className="bg-slate-50 p-6 md:p-8 rounded-2xl border border-border sticky top-24">
@@ -47,14 +46,9 @@ export function CartSummary() {
           <span className="font-semibold text-primary">{formatCurrency(subtotal)}</span>
         </div>
         <div className="flex justify-between text-sm text-text-muted">
-          <span>Podatek VAT (mieszany)</span>
+          <span>Podatek VAT (23%)</span>
           <span className="font-semibold text-primary">{formatCurrency(vat)}</span>
         </div>
-        {itemsWithInstall > 0 && (
-          <div className="text-xs text-green-700 bg-green-50 p-2 rounded border border-green-100 mt-2">
-            Zastosowano obniżoną stawkę VAT 8% dla {itemsWithInstall} poz. z montażem (dla os. fizycznych).
-          </div>
-        )}
       </div>
 
       {/* Total */}
@@ -63,7 +57,7 @@ export function CartSummary() {
         <span className="text-3xl font-extrabold text-primary font-heading text-right">{formatCurrency(total)}</span>
       </div>
 
-      {/* Przycisk (Placeholder - brak właściwego checkoutu) */}
+      {/* Przycisk */}
       <Link href="/zamowienie" className="block w-full">
         <button className="btn btn-primary w-full font-bold group cursor-pointer text-white">
           Przejdź do zamówienia