{# ABOUTME: Single field row inside the apply-candidate diff table. #}
{# ABOUTME: Highlights changed cells, collapses long values into <details>. #}
{% set row_class = 'diff-clear' if diff.skip_clear else ('diff-changed' if diff.changed else 'diff-unchanged') %}
<tr class="diff-row {{ row_class }}">
    {# Apply checkbox only on rows that will actually write (#284): changed and
       not skip-clear. Unchanged/skip-clear rows get an empty cell — a disabled
       control would just invite "why can't I check this?" confusion. #}
    {% if diff.changed and not diff.skip_clear %}
        <td class="diff-apply">
            <label class="diff-apply-label">
                <input type="checkbox" name="apply_fields" value="{{ diff.field }}" form="enrich-apply-form" checked aria-label="Apply {{ diff.field|replace('_', ' ') }}">
            </label>
        </td>
    {% else %}
        <td class="diff-apply"></td>
    {% endif %}
    <th scope="row" class="diff-field">{{ diff.field|replace('_', ' ')|title }}</th>
    {% if diff.skip_clear %}
        {# Proposed is empty while current is set — skipped to protect curated data (issue #125). #}
        <td class="diff-current">
            {% if diff.current and diff.current|length > 200 %}
                <details>
                    <summary>{{ diff.current[:200] }}…</summary>
                    {{ diff.current }}
                </details>
            {% else %}
                {{ diff.current or "—" }}
            {% endif %}
        </td>
        <td class="diff-proposed muted">
            <span class="diff-skip-note">— · current kept — provider had no value</span>
        </td>
    {% elif diff.changed %}
        <td class="diff-current changed">
            {% if diff.current and diff.current|length > 200 %}
                <details>
                    <summary>{{ diff.current[:200] }}…</summary>
                    {{ diff.current }}
                </details>
            {% else %}
                {{ diff.current or "—" }}
            {% endif %}
        </td>
        <td class="diff-proposed changed">
            {% if diff.proposed and diff.proposed|length > 200 %}
                <details>
                    <summary>{{ diff.proposed[:200] }}…</summary>
                    {{ diff.proposed }}
                </details>
            {% else %}
                {{ diff.proposed or "—" }}
            {% endif %}
        </td>
    {% else %}
        <td class="diff-current">
            {% if diff.current and diff.current|length > 200 %}
                <details>
                    <summary>{{ diff.current[:200] }}…</summary>
                    {{ diff.current }}
                </details>
            {% else %}
                {{ diff.current or "—" }}
            {% endif %}
        </td>
        <td class="diff-proposed muted"><span class="diff-same">same</span></td>
    {% endif %}
</tr>