{# Cross-user contamination guard.
localStorage is browser-wide; if User A uploads a portfolio and User B
logs in on the same browser, the stale `cassandra.pie` would otherwise
render as User B's holdings. We stamp the logged-in user's id in
localStorage on every authenticated page load and wipe per-user keys
if the id changed since last time. Theme stays — it's cosmetic. #}
{# Apply saved theme before stylesheet renders to avoid a flash. #}
{% set cu = request.state.current_user if request.state and request.state.current_user is defined else None %}
{% if cu and (cu.user or cu.is_admin) %}
{% block main %}{% endblock %}
{# Shared glossary tooltip (Novice mode). Single floating element
positioned by JS to escape sticky-bar stacking and viewport edges. #}