LUMEN
04FOUNDATIONS

Layout & Surfaces

A strict grid for asymmetric compositions. Generous pacing between sections, surfaces separated by hairlines, and frosted "sterile glass" kept for overlays only.

04.1

Grid

VIEWPORT
1440
COLUMNS
12
GUTTER
24
MARGIN
60
MAX CONTENT
1320
1 2 3 4 5 6 7 8 9 10 11 12
HEADLINE · 7 COL
MEDIA · 5 COL
Asymmetric default: 7 + 5 on desktop, 5 + 3 on tablet, stacked on mobile
04.2

Spacing · 4-pt scale

--space-14pxIcon to label
--space-28pxChip padding, tight stacks
--space-312pxInline groups
--space-416pxForm field gap
--space-520pxCard padding (mobile)
--space-624pxCard padding, gutters
--space-832pxBlock groups
--space-1040pxHeading to content
--space-1248pxSub-section gap
--space-1664pxSection · tight
--space-2080pxHero padding
--space-2496pxSection · default
--space-30120pxEditorial breaks
--space-40160pxSection · loose
--section-tight
64
Between related blocks, such as stats and their CTA.
--section
96
Default gap between page sections.
--section-loose
160
Editorial pauses before signature moments.
04.3

Radius, lines & elevation

--radius-s4px Citation chips, badges, code
--radius-m8px Inputs, popovers, list rows
--radius-l16px Cards, panels, media
--radius-pill999px Buttons, status pills, toggles
0 · HAIRLINE Default. Surfaces separate by 1 px lines, not shadows.
1 · RESTING Sticky bars, selected cards.
2 · RAISED Popovers, dropdowns, toasts.
3 · OVERLAY · STERILE GLASS Mega menu, modals, drawers only.
04.4

Breakpoint behavior

SECTION TYPE1440 · 12 COL1024 · 8 COL390 · 4 COL
HeaderUtility bar + nav + mega menuUtility bar collapses into menuLogo + Menu, full-screen nav
Hero7 + 5 split, ring right5 + 3, ring scales to 360Stacked, ring below headline
Audience router4 across2 × 21 column, 72 px rows
Stats band4 across with dividers2 × 21 column, hairline between
Card grid3 across2 across1 across, full-bleed media
Media + textAlternating 6 + 64 + 4Media first, then text
Comparison tableFull tableSticky first columnHorizontal scroll + sticky col
Sticky exploded viewPinned stage, scrolling stepsPinned stage, steps belowStatic frames per step
CTA bandHeadline + 2 CTAs + trust rowSame, trust row wrapsStacked; sticky CTA bar appears
Footer5 columns + regulatory block3 columnsAccordion groups