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Mosaic

B2B · YC Summer 2026

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Automated design study · partial homepage

Light, left-aligned split product story with soft geometry and video-led proof.

Mosaic opens with “Everyone's AI coding sessions, in one place.” in a left-aligned split hero.
Evidence & method · 5 capture notes
Source
https://mosaic.inc/
Captured
2026-09-08
Extractor
2.5.0
Evidence
hero, mobile
  • Automated interpretation; editorial review is pending.
  • Partial inspection: CSS requests inter, suisse intl, dm mono, but those font faces were unavailable in the hero frame. Screenshots show browser fallback; font tokens describe declared families, not verified glyph faces.
  • Partial inspection: CSS requests inter, suisse intl, dm mono, but those font faces were unavailable in the desktop evidence frame. Screenshots show browser fallback; font tokens describe declared families, not verified glyph faces.
  • Partial inspection: CSS requests inter, suisse intl, dm mono, but those font faces were unavailable in the mobile frame. Screenshots show browser fallback; font tokens describe declared families, not verified glyph faces.
  • Animated or layered text alternatives were detected; the analysis records the most visually prominent state at capture.
  • The hero heading was read from semantic heading markup.
  • 10 responsive breakpoint declarations were inspectable.
  • 1 stylesheet was inspectable; 0 cross-origin stylesheets were unavailable to rule inspection.
  • Computed styles describe the captured render; source design tokens and proprietary font files were not copied.

Captured screens

2026-09-08 · source viewport 1600 × 1000

Mosaic hero homepage design evidence. Hero viewport evidence; animated text state captured.
Hero1600 × 1000
Mosaic mobile homepage design evidence. Mobile viewport evidence; animated text state captured.
Mobile390 × 844

System overview

Hero
split · left
Surface
light
Density
sparse
Content width
640px
Confidence
low
Primary action
Get Started

Color system

Light surfaces use 8 repeated semantic colors; the primary action carries the strongest interactive emphasis.

Canvas

Page canvas

Dominant rendered page background.
Surface 1

Surface

Repeated container or section fill; relative occurrence score 82.
Surface 2

Surface

Repeated container or section fill; relative occurrence score 75.
Surface 3

Surface

Repeated container or section fill; relative occurrence score 1.
Primary text

Primary text

Observed display foreground with 19.6:1 contrast against the captured canvas.
Secondary text

Secondary text

Observed reading foreground; measured canvas-reference contrast is 5.2:1.
Action

Primary action

Fill used by the dominant first-viewport action.
Border

Border and divider

Most repeated inspectable border color.

Typography

The observed type system assigns Junicode to display text; Inter to label text.

Metric previews use the observed CSS values. Source font files are not bundled, so unavailable families fall back locally.
display

Everyone's AI coding sessions, in one place.

Junicode · 58px/59.74px · weight 400 · tracking -1.16px · color rgb(10, 10, 10)
label

Sign in

Inter · 13px/normal · weight 500 · tracking -0.196px · color rgb(10, 10, 10)

Spacing & shape

Spacing

Base unit
4px
Section gap
72px
Container
22px
72px22px20px3px12px8px10px40px26px32px

Shape

Soft geometry is the dominant shape voice. Elevation is selectively reinforced with shadow.

Containers
12px
Pills
999px
Media
0px
Inspect borders & shadows · 5
Borders
1px solid rgb(0, 179, 250)1px solid rgb(0, 145, 214)1px solid rgb(212, 212, 212)1px solid rgb(229, 229, 229)
Shadows
rgba(255, 255, 255, 0.2) 0px 1px 0px 0px inset, rgba(0, 0, 0, 0.2) 0px -1px 0px 0px inset, rgba(0, 0, 0, 0.2) 0px 1px 2px 0px

Component grammar

Token-based examples, not original components. Source fonts may fall back locally.

Hero

Opening proposition

1 observed

Split, left-aligned opening anchored by “Get Started”.

Inspect 4 properties
Pattern
split
Alignment
left
Heading
Junicode · 58px / 400
Media
video-led

Navigation

Global wayfinding

1 observed

Static navigation with 3 visible actions in the desktop opening.

Inspect 7 properties
Text
#0a0a0a
Border
none
Radius
0px
Padding
0px 0px 0px 0px
Type
Suisse Intl · 14px / 500
Position
static
Height
16px

Primary action

Conversion

1 observed

“Get Started” is the strongest first-viewport action by semantic intent and visual contrast.

Get Started
Inspect 6 properties
Background
#00aeff
Text
#ffffff
Border
1px solid rgb(0, 145, 214)
Radius
12px
Padding
0px 22px 0px 22px
Type
Suisse Intl · 15px / 700

Media frame

Visual proof

1 observed

1 style-matched media element was found among 2 rendered candidates; cover fitting and 0px are the most repeated treatments.

Inspect 4 properties
Fit
cover
Ratios
1.00, 0.74
Radius
0px
Candidate pool
2

Layout & narrative

The experience remains a single composed scene rather than a multi-section narrative.

Structure
Single-scene landing
Hero pattern
Split hero: message and proof share the first viewport
Grid
2 columns
Closing
No footer detected

Imagery, motion & responsive

Imagery

Video led media acts as the page’s primary visual proof rather than decoration.

cover fitting · square-edged frames
Inspect imagery inventory
Composition
A focused visual anchors the first viewport.
Inventory
1 image/canvas element and 1 video across the analyzed homepage.

Motion

3 declared keyframes and 0 active animations were inspectable at capture; observed timing uses 0.18s, 0.15s, 0.4s.

Reduced-motion rules detected
Inspect motion inventory
Libraries
CSS / browser-native or bundled source not identifiable
Keyframes
blink, billing-tide, billing-spin
Durations
0.18s, 0.15s, 0.4s, 0.2s
Easings
ease, ease, ease, ease, ease, ease, ease-out, ease-out, ease-out, ease-out, step-end, steps(2), cubic-bezier(0.4, 0, 0.6, 1), linear
States
focus, transition-all, disabled, hover

Mobile

The same 3 visible navigation actions remain at mobile width. Hero alignment changes from left to center; mobile heading size is 34px.

Observed multi-column desktop regions collapse to a single-column mobile flow.
Inspect responsive test
Viewport
390 × 844
Overflow
No horizontal overflow detected

Reproduction guidance

Do

  • Pair the observed #fefefe canvas with #0a0a0a primary copy before adding secondary surfaces.
  • Use Junicode at 58px/59.74px, weight 400, for the primary display moment.
  • Reserve the strongest first-viewport contrast for “Get Started” within the left-aligned split hero.
  • Video led media acts as the page’s primary visual proof rather than decoration.

Don’t

  • Do not mix in arbitrary radii; 12px is the repeated treatment on containers.
  • Do not reuse the #00aeff action color across decorative elements; keep its interactive emphasis selective.
  • Do not introduce extra type families beyond Junicode and Inter.
  • Do not copy transition-all declarations; keep only purposeful transform or opacity motion.