Tabs

Provide 2 to 6 labels in role="tablist"; mark the current one with aria-selected="true".

• The selected tab has a 2px accent-strong underline and ink text; others are ink-muted.
• Tabs filter or change the view; they never navigate to a different page (use the sidebar) and are not the brand's SectionTag, which is a layout furniture piece, not a control.
• Labels are one or two words, sentence case. Show counts as a trailing number only when they help.
• Arrow keys move between tabs; the list scrolls sideways on narrow screens.