I want to enhance my Shopify product pages by adding a smooth, on-page customization option that lets shoppers configure items before checkout. Right now the pages are static; I’d like customers to choose variations—such as color, size, text engraving, or any other attribute I assign—and instantly see the price or preview update without leaving the page. Key needs • A clean, mobile-friendly UI that matches my current theme • Real-time updates to price, SKU, and inventory based on the chosen options • All selections passed correctly to the cart and through to the order summary so fulfillment is accurate • Straightforward controls in the Shopify admin so I can create or edit customization sets on future products without touching code If you have a preferred app or can build the functionality with Liquid, JavaScript, and Shopify’s AJAX API, let me know what approach you’d take and how long you’ll need. Once complete, I’ll test by adding sample products, configuring them, and confirming the data flows through to the order screen. I’m ready to get started as soon as I find someone who can deliver the feature reliably and keep the existing design intact.