Arca

Build a full-viewport split product-showcase hero as a single self-contained HTML file. Inline <style> and inline <script>, Google Fonts via <link> in the head. No build step, no external JS/CSS/images except the Google Fonts and one background video. The entire page is one full-height hero (100vh) split into two columns — no scrolling, no additional sections. It must render perfectly at 1280x800. Dark theme, calm and confident, premium — modern watchmaker, not busy sci-fi.

BRAND:

ARCA — a modern watchmaker selling direct. Voice is precise, understated, value-prop (not poetry): Swiss mechanics without the markup. Accent color is a muted gold #c9a24a on a near-black base #0a0a0b.

FONTS (mo