Foundation source: use contexts/design-foundations-system.html for type role
discipline, baseline-derived spacing, reading path, bento limits, and
image/text rules before adapting to platform-safe areas.
Canonical source template: templates/social/carousel-outline.md.
System Waterfall
Apply in order: foundation context, tokens and brand systems, media framework, channel data, this social sheet, social template, platform safe-area/export checks. Pixel dimensions are output geometry; composition still follows the foundation reading path, bento limits, type hierarchy, and image/text rules.
Media
Default formats:
- LinkedIn feed: 1200 x 1200.
- LinkedIn banner: 1584 x 396.
- LinkedIn article cover: 1200 x 627.
- Instagram square: 1080 x 1080.
- Instagram portrait: 1080 x 1350.
- Instagram story/reel cover: 1080 x 1920.
Surface: Warm Light by default. Blueprint Dark allowed for video title cards, technical diagrams, or high-contrast series.
Margins And Safe Areas
- Feed square: 96px margin.
- Feed portrait: 96px margin top/sides, 140px bottom.
- Story/reel: 120px top, 120px sides, 260px bottom.
- Instagram bottom-right is unsafe because platform UI can cover controls, captions, or buttons. Do not place logos, page numbers, or key text there.
- LinkedIn banner: keep identity and text inside the center 1350 x 300 zone.
Typography Scaling
- Primary claim: Newsreader 72-112px depending on length.
- Supporting line: Lexend 30-42px.
- Label/caption: IBM Plex Mono 18-24px.
- Smallest acceptable social text: 24px on 1080px assets.
Spacing
- Claim layouts: 2-4rem source equivalent.
- Multi-card carousel internal rhythm: 1.5-2.5rem source equivalent.
- Label to title: 1.5rem source equivalent.
- Logo clear space: 2x mark height.
- Keep all internal spacing on the source baseline. Do not nudge text by arbitrary pixels to make overlong claims fit.
Grid
- Square/portrait: 6 columns, 6 or 8 rows, 24px gap.
- Story/reel: 6 columns, 10 rows, 24px gap.
- LinkedIn banner: 12 columns, 3 rows, 24px gap.
Layout System
- Claim card: one line of argument, no paragraph.
- Proof card: one number, one context line.
- Process card: 3-5 steps maximum.
- Diagram card: one workflow, not a full architecture map.
- Carousel: one idea per card; final card carries CTA.
- Use Z-pattern for sparse single-card claims and vertical/layer-cake scanning for carousels. F-pattern behavior means the card is too dense.
- Bento-style cards are allowed only for peer proof modules or one dominant proof plus supporting modules. Do not make every carousel a box grid.
Medium Constraints
- Social is skimmed on phone screens. Dense proposal language fails.
- Do not use tiny captions to carry meaning.
- Keep key content away from platform chrome.
- Avoid logos on every carousel card unless the format needs standalone circulation.
- Photography and editorial texture must leave quiet space for text. Never place type over faces, hands, tools, or the focal evidence object. Captions and sources stay visually attached.