{# Shared outer chrome for the wide-content pages (/store, /home, /setup-advanced). Keeps the navbar gap, max-width, and side gutters identical across these pages so they read as one product surface. The base.html `.container` ships at `max-width: 800px` for narrow utility pages; this partial widens it via `:has()` whenever one of the wide-page wrapper classes is present. Consuming templates: include this once at the top of their `{% block content %}` and rely on a wrapper element with one of the registered classes (`.store-page`, `.home-mock`, `.advanced-mock`). Add the partial's selector list when registering a new wide page; do NOT re-declare the chrome rule in the consuming template. #}