{# Render line-level styling for one unified-diff body (single file chunk). #}
{% macro render_diff_body(text) %}
<pre class="code-diff__body"><code>{% for line in text.splitlines() -%}
{%- if line.startswith('@@') -%}
<span class="code-diff__line code-diff__line--hunk">{{ line }}</span>
{%- elif line.startswith('+++') or line.startswith('---') or line.startswith('diff ') or line.startswith('index ') -%}
<span class="code-diff__line code-diff__line--meta">{{ line }}</span>
{%- elif line.startswith('+') -%}
<span class="code-diff__line code-diff__line--add">{{ line }}</span>
{%- elif line.startswith('-') -%}
<span class="code-diff__line code-diff__line--del">{{ line }}</span>
{%- else -%}
<span class="code-diff__line">{{ line }}</span>
{%- endif -%}
{% endfor %}</code></pre>
{% endmacro %}

{# Legacy: one blob (still works for patches without diff --git splits). #}
{% macro render_diff(text) %}
<div class="code-diff">
    {{ render_diff_body(text) }}
</div>
{% endmacro %}

{# Preferred: one card per file in the patch. #}
{% macro render_diff_sections(sections) %}
<div class="code-diff-stack">
    {% for sec in sections %}
    <details class="code-diff-file"{% if loop.first %} open{% endif %}>
        <summary class="code-diff-file__header">
            <span class="code-diff-file__title" title="{{ sec.title }}">{{ sec.title }}</span>
        </summary>
        <div class="code-diff-file__blob">
            {{ render_diff_body(sec.body) }}
        </div>
    </details>
    {% endfor %}
</div>
{% endmacro %}