feat(performance): Core Web Vitals optimizations

- Font optimization: Replace @font-face with next/font/google (DM Sans, Inter) for faster font loading and no render-blocking
- Image optimization: Add Unsplash to remotePatterns, configure AVIF/WebP formats, add device/image sizes
- Convert native <img> tags to next/image with proper sizing and priority for LCP images
- Add optimizePackageImports for lucide-react and framer-motion to reduce bundle size
- Fix CLS: Urgency message uses fixed min-height instead of animated height
- Fix CLS: ProductCard quick-add button uses opacity instead of translate for hover
- Convert HeroVideo scroll indicator to CSS animation
- Script loading: Rybbit uses lazyOnload strategy for better INP

next.config.ts

@@ -31,6 +31,9 @@ const nextConfig: NextConfig = {
     ];
   },
   images: {
+    formats: ["image/avif", "image/webp"],
+    deviceSizes: [640, 750, 828, 1080, 1200, 1920, 2048],
+    imageSizes: [16, 32, 48, 64, 96, 128, 256, 384],
     remotePatterns: [
       {
         protocol: "https",
@@ -52,8 +55,16 @@ const nextConfig: NextConfig = {
         hostname: "**.saleor.cloud",
         pathname: "/**",
       },
+      {
+        protocol: "https",
+        hostname: "images.unsplash.com",
+        pathname: "/**",
+      },
     ],
   },
+  experimental: {
+    optimizePackageImports: ["lucide-react", "framer-motion"],
+  },
 };
 
 export default withNextIntl(nextConfig);

src/app/[locale]/about/page.tsx

@@ -5,6 +5,7 @@ import { getPageMetadata } from "@/lib/i18n/pageMetadata";
 import { isValidLocale, DEFAULT_LOCALE, type Locale } from "@/lib/i18n/locales";
 import { getPageKeywords } from "@/lib/seo/keywords";
 import { Metadata } from "next";
+import Image from "next/image";
 
 const baseUrl = process.env.NEXT_PUBLIC_SITE_URL || "https://manoonoils.com";
 
@@ -67,10 +68,13 @@ export default async function AboutPage({ params }: AboutPageProps) {
         </div>
 
         <div className="relative h-[400px] md:h-[500px] overflow-hidden">
-          <img
+          <Image
             src="https://images.unsplash.com/photo-1608571423902-eed4a5ad8108?q=80&w=2000&auto=format&fit=crop"
             alt={metadata.about.productionAlt}
-            className="w-full h-full object-cover"
+            fill
+            priority
+            className="object-cover"
+            sizes="100vw"
           />
           <div className="absolute inset-0 bg-black/20" />
         </div>

src/app/[locale]/layout.tsx

@@ -60,7 +60,7 @@ export default async function LocaleLayout({
       <Script
         src="/api/script.js"
         data-site-id={RYBBIT_SITE_ID}
-        strategy="afterInteractive"
+        strategy="lazyOnload"
       />
       <NextIntlClientProvider messages={messages}>
         {children}

src/app/[locale]/page.tsx

@@ -14,6 +14,7 @@ import { getPageMetadata } from "@/lib/i18n/pageMetadata";
 import { isValidLocale, DEFAULT_LOCALE, getSaleorLocale, type Locale } from "@/lib/i18n/locales";
 import { getPageKeywords, getBrandKeywords } from "@/lib/seo/keywords";
 import { Metadata } from "next";
+import Image from "next/image";
 
 const baseUrl = process.env.NEXT_PUBLIC_SITE_URL || "https://manoonoils.com";
 
@@ -157,10 +158,12 @@ export default async function Homepage({ params }: { params: Promise<{ locale: s
                   </a>
                 </div>
                 <div className="relative aspect-[4/3] bg-[#e8f0f5] rounded-lg overflow-hidden">
-                  <img
+                  <Image
                     src="https://images.unsplash.com/photo-1608571423902-eed4a5ad8108?q=80&w=800&auto=format&fit=crop"
                     alt={metadata.home.productionAlt}
-                    className="w-full h-full object-cover"
+                    fill
+                    className="object-cover"
+                    sizes="(max-width: 768px) 100vw, 50vw"
                   />
                 </div>
               </div>

src/app/globals.css

@@ -53,8 +53,7 @@
   --color-cta-hover: #333333;
   --color-overlay: rgba(0, 0, 0, 0.4);
   
-  --font-display: 'DM Sans', sans-serif;
+  /* Font variables will be set by next/font in layout.tsx */
-  --font-body: 'Inter', sans-serif;
   
   --transition-fast: 150ms ease;
   --transition-base: 250ms ease;
@@ -66,26 +65,9 @@
   --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
 }
 
-/* ============================================
-   FONT IMPORTS
-   ============================================ */
-
-@font-face {
-  font-family: 'DM Sans';
-  src: url('https://fonts.gstatic.com/s/dmsans/v15/rP2tp2ywxg089UriI5-g4vlH9VoD8CmcqZG40F9JadbnoEwAopxhS2f3ZGMZpg.woff2') format('woff2');
-  font-weight: 400 700;
-  font-display: swap;
-}
-
-@font-face {
-  font-family: 'Inter';
-  src: url('https://fonts.gstatic.com/s/inter/v18/UcCO3FwrK3iLTeHuS_fvQtMwCp50KnMw2boKoduKmMEVuLyfAZ9hjp-Ek-_EeA.woff2') format('woff2');
-  font-weight: 400 700;
-  font-display: swap;
-}
-
 /* ============================================
    BASE STYLES (in Tailwind base layer)
+   Fonts loaded via next/font in layout.tsx
    ============================================ */
 
 @layer base {
@@ -266,6 +248,19 @@
   }
 }
 
+/* ============================================
+   SCROLL INDICATOR ANIMATION
+   ============================================ */
+
+@keyframes scrollBounce {
+  0%, 100% { transform: translateY(0); }
+  50% { transform: translateY(8px); }
+}
+
+.scroll-indicator {
+  animation: scrollBounce 1.5s ease-in-out infinite;
+}
+
 /* ============================================
    UTILITIES
    ============================================ */

src/app/layout.tsx

@@ -1,9 +1,22 @@
 import "./globals.css";
 import type { Metadata, Viewport } from "next";
+import { DM_Sans, Inter } from "next/font/google";
 import ErrorBoundary from "@/components/providers/ErrorBoundary";
 import { SUPPORTED_LOCALES } from "@/lib/i18n/locales";
 import { OrganizationSchema } from "@/components/seo";
 
+const dmSans = DM_Sans({
+  subsets: ["latin"],
+  variable: "--font-display",
+  display: "swap",
+});
+
+const inter = Inter({
+  subsets: ["latin"],
+  variable: "--font-body",
+  display: "swap",
+});
+
 const baseUrl = process.env.NEXT_PUBLIC_SITE_URL || "https://manoonoils.com";
 
 export const metadata: Metadata = {
@@ -39,7 +52,7 @@ export default async function RootLayout({
   children: React.ReactNode;
 }) {
   return (
-    <html suppressHydrationWarning>
+    <html suppressHydrationWarning className={`${dmSans.variable} ${inter.variable}`}>
       <body className="antialiased" suppressHydrationWarning>
         <ErrorBoundary>
           {children}

src/components/home/HeroVideo.tsx

@@ -2,6 +2,7 @@
 
 import { motion } from "framer-motion";
 import Link from "next/link";
+import Image from "next/image";
 import { useTranslations } from "next-intl";
 import { ChevronDown } from "lucide-react";
 
@@ -22,13 +23,16 @@ export default function HeroVideo({ locale = "sr" }: HeroVideoProps) {
 
   return (
     <section className="relative min-h-screen w-full overflow-hidden">
-      {/* Background Image with Overlay */}
+      {/* Background Image with Overlay - Using next/image for LCP optimization */}
-      <div 
+      <div className="absolute inset-0">
-        className="absolute inset-0 bg-cover bg-center bg-no-repeat"
+        <Image
-        style={{
+          src="https://images.unsplash.com/photo-1608571423902-eed4a5ad8108?q=80&w=2574&auto=format&fit=crop"
-          backgroundImage: `url('https://images.unsplash.com/photo-1608571423902-eed4a5ad8108?q=80&w=2574&auto=format&fit=crop')`,
+          alt=""
-        }}
+          fill
-      >
+          priority
+          className="object-cover"
+          sizes="100vw"
+        />
         <div className="absolute inset-0 bg-gradient-to-b from-black/50 via-black/40 to-black/70" />
       </div>
 
@@ -132,21 +136,16 @@ export default function HeroVideo({ locale = "sr" }: HeroVideoProps) {
       </div>
 
       {/* Scroll Indicator */}
-      <motion.button
+      <button
-        initial={{ opacity: 0 }}
-        animate={{ opacity: 1 }}
-        transition={{ delay: 1.5, duration: 0.8 }}
         onClick={scrollToContent}
-        className="absolute bottom-10 left-1/2 -translate-x-1/2 text-white/60 hover:text-white transition-colors cursor-pointer"
+        className="absolute bottom-10 left-1/2 -translate-x-1/2 text-white/60 hover:text-white transition-colors cursor-pointer opacity-0 animate-fade-in"
+        style={{ animationDelay: '1.5s', animationFillMode: 'forwards' }}
         aria-label="Scroll to content"
       >
-        <motion.div
+        <div className="scroll-indicator">
-          animate={{ y: [0, 8, 0] }}
-          transition={{ repeat: Infinity, duration: 1.5, ease: "easeInOut" }}
-        >
           <ChevronDown className="w-6 h-6" strokeWidth={1.5} />
-        </motion.div>
+        </div>
-      </motion.button>
+      </button>
     </section>
   );
 }

src/components/product/ProductCard.tsx

@@ -32,11 +32,12 @@ export default function ProductCard({ product, index = 0, locale = "sr" }: Produ
       <Link href={`/${locale}/products/${localized.slug}`} className="group block">
         <div className="relative w-full aspect-square bg-[#f8f9fa] overflow-hidden mb-4">
           {image ? (
-            <img
+            <Image
               src={image}
               alt={localized.name}
-              className="w-full h-full object-cover object-center transition-transform duration-700 ease-out group-hover:scale-105"
+              fill
-              loading="lazy"
+              className="object-cover object-center transition-transform duration-700 ease-out group-hover:scale-105"
+              sizes="(max-width: 640px) 100vw, (max-width: 1024px) 50vw, 25vw"
             />
           ) : (
             <div className="absolute inset-0 flex items-center justify-center text-[#999999]">
@@ -52,7 +53,7 @@ export default function ProductCard({ product, index = 0, locale = "sr" }: Produ
             </div>
           )}
 
-          <div className="absolute inset-x-0 bottom-0 p-4 translate-y-full group-hover:translate-y-0 transition-transform duration-300">
+          <div className="absolute inset-x-0 bottom-0 p-4 opacity-0 group-hover:opacity-100 transition-opacity duration-300">
             <button
               className="w-full py-3 bg-black text-white text-xs uppercase tracking-[0.1em] hover:bg-[#333333] transition-colors"
               onClick={(e) => {

src/components/product/ProductDetail.tsx

@@ -245,10 +245,12 @@ export default function ProductDetail({ product, relatedProducts, bundleProducts
                           : "border-transparent hover:border-[#999999]"
                       }`}
                     >
-                      <img
+                      <Image
                         src={image.url}
                         alt={image.alt || localized.name}
-                        className="w-full h-full object-cover"
+                        fill
+                        className="object-cover"
+                        sizes="100px"
                       />
                     </button>
                   ))}
@@ -256,10 +258,13 @@ export default function ProductDetail({ product, relatedProducts, bundleProducts
               )}
 
               <div className="relative w-full aspect-square bg-[#f8f9fa] overflow-hidden flex-1">
-                <img
+                <Image
                   src={images[selectedImage].url}
                   alt={images[selectedImage].alt || localized.name}
-                  className="w-full h-full object-cover"
+                  fill
+                  priority
+                  className="object-cover"
+                  sizes="(max-width: 768px) 100vw, 50vw"
                 />
 
                 {images.length > 1 && (
@@ -307,17 +312,15 @@ export default function ProductDetail({ product, relatedProducts, bundleProducts
               transition={{ duration: 0.6, delay: 0.2 }}
               className="lg:pl-8"
             >
-              <motion.div
+              <div className="min-h-[52px] flex items-center">
-                key={urgencyIndex}
+                <div
-                initial={{ opacity: 0, y: -10 }}
+                  className="bg-white/80 backdrop-blur-sm text-[#1a1a1a] py-3 px-4 rounded-lg mb-4 text-sm font-medium text-left w-full"
-                animate={{ opacity: 1, y: 0 }}
+                  key={urgencyIndex}
-                exit={{ opacity: 0, y: 10 }}
+                >
-                transition={{ duration: 0.3 }}
+                  <span className="mr-2">{urgencyMessages[urgencyIndex].icon}</span>
-                className="bg-white/80 backdrop-blur-sm text-[#1a1a1a] py-3 rounded-lg mb-4 text-sm font-medium text-left"
+                  {urgencyMessages[urgencyIndex].text}
-              >
+                </div>
-                <span className="mr-2">{urgencyMessages[urgencyIndex].icon}</span>
+              </div>
-                {urgencyMessages[urgencyIndex].text}
-              </motion.div>
 
               <h1 className="text-3xl md:text-4xl font-medium mb-4 tracking-tight">
                 {localized.name}