feat: Landing page design improvements

Based on landing-page-design skill principles:

Homepage:
- Redesigned hero with outcome-focused headline ("Transform Your Hair & Skin")
- Added social proof micro (5 stars + 50,000+ customers)
- Better CTA: "Transform My Hair & Skin" instead of "Shop Now"
- Added trust indicators in hero (30-day guarantee, free shipping, cruelty free)
- Added ProblemSection to create empathy (dry hair, confusing ingredients, no results)
- Added HowItWorks section (3 steps: Choose, Apply, See Results)
- Improved AsSeenIn with scrolling marquee on dark background
- Premium trust badges with stats and icons

Product pages:
- Improved CTA: "Transform My Hair & Skin" (action verb + value)
- Added ProductBenefits section (4 key benefits)
- Added ProductReviews section with customer testimonials
- Added AsSeenIn scrolling banner
- Added trust indicators with icons

Section order now follows proven conversion sequence:
1. Hero (headline + outcome + CTA)
2. Social Proof (trust badges, logos)
3. Problem (empathy)
4. Solution (products)
5. How It Works
6. Testimonials
7. Final CTA

src/components/product/ProductBenefits.tsx

@@ -0,0 +1,88 @@
+"use client";
+
+import { motion } from "framer-motion";
+
+interface ProductBenefitsProps {
+  locale?: string;
+}
+
+const benefits = [
+  {
+    icon: (
+      <svg className="w-8 h-8" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M9.813 15.904L9 18.75l-.813-2.846a4.5 4.5 0 00-3.09-3.09L2.25 12l2.846-.813a4.5 4.5 0 003.09-3.09L9 5.25l.813 2.846a4.5 4.5 0 003.09 3.09L15.75 12l-2.846.813a4.5 4.5 0 00-3.09 3.09zM18.259 8.715L18 9.75l-.259-1.035a3.375 3.375 0 00-2.455-2.456L14.25 6l1.036-.259a3.375 3.375 0 002.455-2.456L18 2.25l.259 1.035a3.375 3.375 0 002.456 2.456L21.75 6l-1.035.259a3.375 3.375 0 00-2.456 2.456z" />
+      </svg>
+    ),
+    title: "Pure & Natural",
+    description: "100% natural ingredients with no additives or preservatives",
+  },
+  {
+    icon: (
+      <svg className="w-8 h-8" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M15.182 15.182a4.5 4.5 0 01-6.364 0M21 12a9 9 0 11-18 0 9 9 0 0118 0zM9.75 9.75c0 .414-.168.75-.375.75S9 10.164 9 9.75 9.168 9 9.375 9s.375.336.375.75zm-.375 0h.008v.015h-.008V9.75zm5.625 0c0 .414-.168.75-.375.75s-.375-.336-.375-.75.168-.75.375-.75.375.336.375.75zm-.375 0h.008v.015h-.008V9.75z" />
+      </svg>
+    ),
+    title: "Cruelty Free",
+    description: "Never tested on animals, ethically sourced ingredients",
+  },
+  {
+    icon: (
+      <svg className="w-8 h-8" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M21 8.25c0-2.485-2.099-4.5-4.688-4.5-1.935 0-3.597 1.126-4.312 2.733-.715-1.607-2.377-2.733-4.313-2.733C5.1 3.75 3 5.765 3 8.25c0 7.22 9 12 9 12s9-4.78 9-12z" />
+      </svg>
+    ),
+    title: "Made with Love",
+    description: "Handcrafted in small batches for maximum quality",
+  },
+  {
+    icon: (
+      <svg className="w-8 h-8" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M12 3v2.25m6.364.386l-1.591 1.591M21 12h-2.25m-.386 6.364l-1.591-1.591M12 18.75V21m-4.773-4.227l-1.591 1.591M5.25 12H3m4.227-4.773L5.636 5.636M15.75 12a3.75 3.75 0 11-7.5 0 3.75 3.75 0 017.5 0z" />
+      </svg>
+    ),
+    title: "Visible Results",
+    description: "See noticeable improvements in 4-6 weeks",
+  },
+];
+
+export default function ProductBenefits({ locale = "SR" }: ProductBenefitsProps) {
+  return (
+    <section className="py-20 bg-gradient-to-b from-white to-[#faf9f7]">
+      <div className="container mx-auto px-4">
+        <motion.div
+          className="text-center mb-12"
+          initial={{ opacity: 0, y: 20 }}
+          whileInView={{ opacity: 1, y: 0 }}
+          viewport={{ once: true }}
+          transition={{ duration: 0.6 }}
+        >
+          <span className="text-xs uppercase tracking-[0.2em] text-[#666666] mb-3 block">
+            {locale === "EN" ? "Why Choose This Product" : "Zašto odabrati ovaj proizvod"}
+          </span>
+          <h2 className="text-3xl md:text-4xl font-medium">
+            {locale === "EN" ? "The Manoon Difference" : "Manoon razlika"}
+          </h2>
+        </motion.div>
+
+        <div className="grid grid-cols-2 lg:grid-cols-4 gap-6 lg:gap-8 max-w-5xl mx-auto">
+          {benefits.map((benefit, index) => (
+            <motion.div
+              key={index}
+              className="text-center p-6 bg-white rounded-2xl shadow-sm border border-[#f0ede8]"
+              initial={{ opacity: 0, y: 20 }}
+              whileInView={{ opacity: 1, y: 0 }}
+              viewport={{ once: true }}
+              transition={{ duration: 0.4, delay: index * 0.1 }}
+            >
+              <div className="w-16 h-16 mx-auto mb-4 rounded-full bg-[#1a1a1a] flex items-center justify-center text-white">
+                {benefit.icon}
+              </div>
+              <h3 className="text-base font-medium mb-2">{benefit.title}</h3>
+              <p className="text-sm text-[#666666]">{benefit.description}</p>
+            </motion.div>
+          ))}
+        </div>
+      </div>
+    </section>
+  );
+}