{# SPDX-License-Identifier: GPL-3.0-only -#}
{# Copyright (C) 2026 Giovanni Manzoni -#}
{#- Document skeleton. Contract (API.md section 4): the page extends this through page.html.
No inline script and no inline handler anywhere (CSP script-src 'self'); the only
script bodies are the application/json data block of page.html. theme-init.js is an
external classic script in so the theme is set before the first paint.
The stored theme is rendered into (a browser that never visited paints the
saved theme at once); data-theme-source says who wins: "server" (writes allowed: the stored
value) or "device" (read-only server: this browser's cached choice, if any). -#}
{#- Browser chrome colour: the surface tokens of tokens.css (a test keeps them equal). -#}
{% block title %}{{ heading }} - Sankey Studio{% endblock %}
{% block head %}{% endblock %}
{% block body %}{% endblock %}