{% macro render(field, list_params) -%}
    {% if field.orderable -%}
        {# Locate this field's current sort state (direction + position) #}
        {% set ns = namespace(current_dir=None, sort_index=None) %}
        {% for i in range(list_params.sorts | length) %}
            {% if list_params.sorts[i][0] == field.name %}
                {% set ns.current_dir = list_params.sorts[i][1] %}
                {% set ns.sort_index = i %}
            {% endif %}
        {% endfor %}
        {# Single-sort href: replace all active sorts with just this column.
           Direction toggles asc↔desc; defaults to asc when column is new. #}
        {% set single_dir = 'desc' if ns.current_dir == 'asc' else 'asc' %}
        {# Multi-sort href (Shift+click): toggle/append this column.
           - not sorted  → append as asc
           - sorted asc  → change to desc in place
           - sorted desc → remove from list                               #}
        {% set ns2 = namespace(new_sorts=[], found=false) %}
        {% for s_name, s_dir in list_params.sorts %}
            {% if s_name == field.name %}
                {% set ns2.found = true %}
                {% if s_dir == 'asc' %}
                    {% set ns2.new_sorts = ns2.new_sorts + [field.name ~ '__desc'] %}
                {% endif %}
            {% else %}
                {% set ns2.new_sorts = ns2.new_sorts + [s_name ~ '__' ~ s_dir] %}
            {% endif %}
        {% endfor %}
        {% if not ns2.found %}
            {% set ns2.new_sorts = ns2.new_sorts + [field.name ~ '__asc'] %}
        {% endif %}
        <a class="text-reset text-decoration-none d-inline-flex align-items-center sort-link"
           href="{{ list_url(request, sort=field.name ~ '__' ~ single_dir, page=None) }}"
           data-multi-sort-href="{{ list_url(request, sort=ns2.new_sorts, page=None) }}">
            {{ field.label }}
            {% if ns.current_dir is not none -%}
                {% if list_params.sorts | length > 1 %}
                    <span class="badge bg-primary text-primary-fg badge-pill ms-1">{{ ns.sort_index + 1 }}</span>
                {% endif %}
                <i class="{{ icon('sort.asc' if ns.current_dir == 'asc' else 'sort.desc') }} ms-1"
                   aria-hidden="true"></i>
            {%- else -%}
                <i class="{{ icon('sort.none') }} ms-1 text-muted opacity-50"
                   aria-hidden="true"></i>
            {%- endif %}
        </a>
    {%- else -%}
        {{ field.label }}
    {%- endif %}
{%- endmacro %}