{# Layout components — page header, titled card sections, key/value grids. Macros: page_header, section_card, info_item, info_grid, collapsible #} {% macro page_header(title, back_url="", description="") %} {# Title row with optional back arrow and a slot for actions (use with {% call %}). Usage: {% call page_header("Pipeline details", back_url="/ci") %} {% endcall %} #}