Portal admin accounts are created by your organization. After you sign in, use Staff portal in the header for attendance and unit work — same login, no extra staff account. Unit staff who are not admins sign in at the staff portal.
Sign in at /portal/admin/login/ using your admin username only (not your email, and not the staff portal).
If login stopped working after a deploy, reset your password in Render Shell:
python manage.py create_portal_admin --username YOURUSER --password 'YourNewPass123!'
If PORTAL_ADMIN_USERNAME and PORTAL_ADMIN_PASSWORD are set on Render, each deploy resets the admin password to those values.