Components
Ribbon toolbar.
The Office DNA. 32px tab row, 96px ribbon, 1px shadow — locked at 129px total. Groups are dividers, not boxes; the 1×64px hairline is the visual rhythm.
Anatomy
Total height129px (32 + 96 + 1)
Tab row32px, Manrope Semibold 14, 16px horizontal padding
Active tab2px Aceve green underline, body black
GroupEqual-height items + 10/12 var(--ink-3) label, centered
Group divider1×64px var(--line) hairline
Big button48×48 icon tile, 12/120 label below
Mini buttonIcon + label, 24px row
Group naming
Two words, sentence case, predict-the-contents. Don't pluralise unless natural.
ClipboardViewRowsOverviewTake-offLibrary