{# Returns space-separated Font Awesome classes for <i> (FA7 / all.min.css). #}
{% macro social_icon_classes(link) -%}
{%- if link.fa_class -%}
{{ link.fa_class | trim }}
{%- else -%}
{%- set key = (link.icon | default('', true)) | lower -%}
{%- if key == 'linkedin' -%}fa-brands fa-linkedin-in
{%- elif key == 'github' -%}fa-brands fa-github
{%- elif key == 'gitlab' -%}fa-brands fa-gitlab
{%- elif key == 'codeberg' -%}fa-solid fa-code-branch
{%- else -%}fa-solid fa-link
{%- endif -%}
{%- endif -%}
{%- endmacro %}