Adjusted CSS variables in `static/css/styles.css` to increase brightness of hr element and center-align text within `.hero-text-container`, `.hero-title`, and `.hero-description`. Also updated positioning and transform properties for `.hero-text-container`. Replit-Commit-Author: Agent Replit-Commit-Session-Id: 5e584ab0-c340-4432-97ef-1972582b60e9 Replit-Commit-Checkpoint-Type: full_checkpoint Replit-Commit-Event-Id: d21238ad-8e95-4779-8c03-ce66774f7dc0 Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/d0a1d46d-d203-4308-bc6a-312ac7c0243b/5e584ab0-c340-4432-97ef-1972582b60e9/XuUfYJo