Cookie & Local Storage Policy
Details on how Empire Architecture OS uses essential cookies and local browser storage to maintain session security and application state.
1. Overview
This Cookie Policy explains how TEA Digital Technologies LLC ("Company," "we," "us," or "our") utilizes cookies, local storage (localStorage), and similar technologies when you access Empire Architecture OS at construct21.com.
2. Strictly Essential Cookies & Local Storage
Empire Architecture OS uses strictly essential storage technologies required to operate the Platform securely. We do not utilize non-essential third-party advertising tracking cookies or behavioral profile tracking cookies.
A. Essential Authentication & Session Cookies
Set by Supabase Auth (e.g. sb-access-token, sb-refresh-token). These encrypted HTTP cookies maintain your secure logged-in session, authenticate API requests, and prevent unauthorized account access.
B. Payment Processing & Checkout Security Cookies
Set by Stripe, Inc. during hosted checkout (e.g. __stripe_mid, __stripe_sid). These cookies are strictly necessary for PCI-compliant payment routing, fraud detection, and Stripe Link checkout integration.
C. Security & Bot Prevention Cookies
Set by Cloudflare Turnstile (e.g. cf_clearance) during checkout confirmation and lead form submission to prevent automated bot attacks and brute-force registration.
D. Local Browser Storage (localStorage & sessionStorage)
Used locally on your device to persist active module drafts, interactive worksheet answers, theme preferences, and reader progress in Crisis Hunter and Antidote Architect across browser reloads.
3. Managing & Controlling Cookies
Most modern web browsers allow you to block or clear cookies through browser settings. However, because all cookies used on Empire Architecture OS are strictly essential for authentication, checkout, and security:
WARNING: Disabling essential session cookies or local browser storage will prevent you from logging into your account, creating a checkout session, or saving project deliverables.
4. Contact Information
Company Contact & Notices
All legal notices, privacy requests, dispute communications, or billing inquiries regarding Empire Architecture OS must be directed to: