Art Deco Product Detail

Act like a frontend developer with 15 years of experience. I want the exact same UI with 95-99% similarity.

Platform: This is a RESPONSIVE design — it should work on both mobile and desktop. Use mobile layout patterns (bottom nav, stacked content) for mobile, and desktop layout patterns (sidebar/nav bar, wider content areas) for web.

Design a product detail screen with a large image area, product title and price, a star rating row, size selector chips, a short description, and a sticky add-to-cart bar at the bottom.

Visual style — Art Deco:
Symmetrical geometric ornament — sunburst and fan motifs framing cards, stepped ziggurat edges on headers. Thin metallic-line borders and dividers. Tall elegant serif display type with wide letter-spacing for headings, condensed sans for body. Opulent, symmetrical, jazz-age glamour.

Color palette — Black Gold:
Background #0D0D0D, surfaces #161616. Text #F3EFE3. Accent gold #C9A24B.

Typography — use these exact font families:
- Headings / display: Georgia, "Playfair Display", serif
- Body / labels: "Arial Narrow", "Helvetica Neue", sans-serif

Commit fully to this style — it should be unmistakable at a glance. Use realistic content, not placeholder text. Keep animations smooth (200ms ease-out).