URGENT: 30-Min WordPress/CSS Fix - One-Page Luxury Spa Landing Page - MUST START NOW

I have a luxury spa landing page (Saint Pink Spa) built on WordPress (GoDaddy Managed). The branding and assets are already uploaded. I need a developer who can jump in RIGHT NOW to perform two specific tasks:
​Mobile/Tablet Responsiveness: Force the background/logo image to be perfectly centered and responsive across all devices (iPhone, Android, iPad, and Desktop) using CSS. It must be "locked" so there are no white gaps or footer bars showing.
​Contact Integration: Ensure the existing contact page/section with the phone number is correctly linked and styled to match the elite branding.
​Requirements:
​Must be available to start immediately.
​Expert in WordPress Site Editor (Block Themes) and Custom CSS.
​Must understand how to "Flush Cache" on GoDaddy Managed WordPress to ensure changes reflect globally.
​Must provide a clean, "app-like" feel (no scrolling if not needed).
​Website Link: https://saintpinkspa.com
​What I will provide:
​WordPress Admin Access.
​The original high-res 3D logo asset.
​Reward: Quick 5-star review and a bonus for immediate delivery.