Corca DESIGN.md

Overview

Visual Theme & Atmosphere

Corca (코르카) is a Korean AI company whose corporate site frames the whole business around a single confident sentence — "코르카는 AI 기술로 세상을 바꾸고 있습니다" ("Corca is changing the world with AI technology"). The site is built on Wix, and its atmosphere is that of a young, benchmark-winning research lab that wants to read as both credible and playful. The homepage opens on a dark hero with a very large white headline (#ffffff, ~60px), then drops into a bright white canvas where every section heading is set in a deep, trustworthy navy ink (#1a2352). That navy is the spine of the identity: it appears on essentially every H2 and carries the calm, engineering-grade seriousness of an AI company that has real numbers to show.

Where Corca departs from a purely corporate palette is its per-product theming. Each product gets its own colored "world." The corporate achievements are announced in an accent blue (#046cb8) — the eyebrow color above lines like "2024 아기유니콘 선정!" and "세계 7위, 국내 기업 중 1위 쾌거!". The flagship product Moonlight ("AI Colleague for Research Papers" / "논문을 더 빠르고 쉽게 이해하기") runs a literal night theme: a deep plum-purple stage (#402060) lit by a soft moonlight cream (#fff3b7) that also becomes the active-nav color on that surface. Other feature bands pull in a bright electric blue (#419eff), a pale lavender wash (#faeeff), a warm amber (#fdd484), a pale sky tint (#d9e5f5) and a steel blue (#36597d) — a deliberately optimistic, multi-hued spectrum that keeps a dense corporate page from feeling grey.

Geometrically, Corca is a pill-and-soft-corner system. Calls to action are fully rounded pills — a white 50px-radius "Try it now" fill on product pages, and a transparent 999px-radius outline pill ("기사 보기") ringed with a thin dark line (#000000). Content cards use gentle 10px and 16px corners. The system is essentially flat: live inspection returned box-shadow: none across the hero, nav and cards, so separation is done with color blocks and generous whitespace rather than elevation. Typography splits jobs cleanly: headlines use a custom uploaded display webfont with heavy, poster-like presence, while body and UI text resolve down to Pretendard and Wix's Madefor for quiet Korean legibility.

Key Characteristics:

• Deep navy ink (#1a2352) as the brand spine — set on every section heading, never pure black for headings
• Dark hero with an oversized white (#ffffff) ~60px headline stating the AI mission
• Per-product theming — Moonlight's night world of deep purple (#402060) + moonlight cream (#fff3b7)
• Achievement blue (#046cb8) reserved for eyebrow labels above credibility claims
• Optimistic multi-hue accent spectrum: bright blue (#419eff), lavender (#faeeff), amber (#fdd484), sky (#d9e5f5), steel blue (#36597d)
• Pill-everything CTAs — 50px filled pills, 999px outline pills
• Flat depth — box-shadow: none; color blocks and whitespace do the separating
• Custom display webfont for headlines over Pretendard / Madefor for body and UI

Primary tasks

• Find out which products the company actually ships
• Read how Moonlight helps people understand academic papers faster
• Try Moonlight from the call to action on its product page
• Check the benchmark ranking and award before trusting an AI vendor
• Open a press article behind one of the company's claims

Brand Narrative

Corca (코르카) is a Korean AI company built around a single, literal mission: to change the world with AI technology. That sentence is not marketing garnish — it is the site's H1 and the frame for everything else. Rather than positioning itself as a horizontal "AI platform," Corca presents as a lab that ships concrete products and lets outcomes speak: Moonlight, an "AI colleague for research papers" that helps people read and understand academic papers faster, and Trace, a sibling product in its lineup.

The brand leans hard on external validation as trust-building. The homepage foregrounds its selection as a 2024 아기유니콘 (Baby Unicorn) — a Korean government-backed high-potential-startup designation — and a benchmark result billed as "세계 7위, 국내 기업 중 1위" (7th in the world, 1st among domestic companies). Moonlight's own surface stacks adoption numbers (100,000+, 1.7M+, 150+, 1,000+) as social proof. The narrative Corca tells is therefore evidence-first: here is the technology, here is who recognized it, here is how many people use it.

What Corca's design refuses, visibly: the heavy, shadow-stacked chrome of legacy enterprise software, and hype that isn't backed by a number. What it embraces: a trustworthy navy spine, per-product color worlds that make each launch feel like its own small brand, flat and fast web-native surfaces, and big proof-numbers given room to breathe. (Company facts above are drawn from Corca's own live homepage and Moonlight surface; specific founding details beyond what the site states are not independently verified here.)

Principles

1. Proof over adjectives. Corca states rankings and adoption numbers, not superlatives. UI implication: give metrics a large, dedicated stat tier (46px) and let numbers carry credibility.
2. A world per product. Moonlight gets its purple-and-cream night theme; the corporate frame stays navy. UI implication: theme each product surface distinctly, but keep the navy #1a2352 spine as the shared connective tissue.
3. Flat and fast. Modern web-native clarity beats decorative depth. UI implication: no shadows; separate with full-width color blocks and whitespace.
4. Present tense, plain claim. "We are changing the world," not "we aspire to." UI implication: declarative headlines, direct CTAs ("자세히 보기", "Try it now"), no hedging.
5. Heavy where it declares, quiet where it explains. UI implication: the display webfont for poster headlines; Pretendard / Madefor for calm, legible body and UI.

Personas

Personas below are fictional archetypes informed by publicly observable Corca product surfaces (a research-paper AI assistant, a Korean AI startup with enterprise and academic reach), not individual people.

정민서, 27, 서울. A graduate researcher drowning in papers. Uses Moonlight to get through literature reviews faster and trusts it partly because the adoption numbers (100,000+ users) signal she is not an early guinea pig. Wants the product to feel fast and uncluttered, not like heavyweight enterprise software.

James Park, 34, remote. A startup engineer evaluating AI vendors. Reads Corca's "세계 7위" benchmark claim and the 아기유니콘 selection as credibility shortcuts. Would bounce immediately from a site that made big AI claims with zero verifiable numbers behind them.

이하늘, 41, 판교. A corporate innovation lead scouting Korean AI partners. Values that Corca ships named products (Moonlight, Trace) rather than a vague platform, and that each has its own clear identity and metrics. Trusts the calm navy corporate frame over flashy gradients.

Colors

Primary & Ink

• Corca Navy (#1a2352): The primary brand color and the ink for essentially every section heading (H2). A deep blue-navy that reads trustworthy and engineering-grade — used instead of pure black for headings.
• Pure Black (#000000): Maximum-contrast nav labels and the thin ring on outline pills.
• Soft Ink (#181818): Near-black used for top-nav item text — a hair warmer than pure black.
• Body Slate (#324158): Secondary body copy and descriptive paragraphs.
• Muted Grey (#bbbbbb): Low-emphasis captions, meta, and disabled labels.

Accent Blues

• Achievement Blue (#046cb8): The eyebrow color above credibility claims ("2024 아기유니콘 선정!", "세계 7위, 국내 기업 중 1위 쾌거!"). Corca's "we won something" color.
• Bright Blue (#419eff): An electric blue used as a full-bleed section background on product surfaces.
• Steel Blue (#36597d): A muted mid-blue for secondary illustration blocks and quieter bands.

Product / Moonlight Theme

• Moonlight Cream (#fff3b7): The signature Moonlight accent — a soft pale-yellow "moonlight" that also becomes the active-nav text color on the Moonlight surface.
• Moonlight Deep (#402060): The deep plum-purple night stage behind the Moonlight hero.
• Lavender (#faeeff): A pale lavender wash used as a soft full-width section background.
• Amber (#fdd484): A warm golden accent block used for highlight sections.
• Sky (#d9e5f5): A pale blue tint for soft section backgrounds and cards.
• Card Violet (#777cdc): A themed violet fill on the "자세히 보기" product-card button.
• Card Plum (#605070): An alternate themed plum fill on a sibling product-card button.

Neutrals & Surface

• Pure White (#ffffff): Page canvas, white cards, hero headline text, and the filled CTA background.
• Surface Grey (#f1f5f9): A cool light-grey surface for panels and grouped content cards.

Typography

Font Family

• Display: a custom uploaded webfont (served by Wix as wfont_… faces) used for all headlines and stat numbers. The typeface carries its weight inside the font file, so computed font-weight reports 400 even though the letterforms read as bold/heavy poster type.
• Body: Pretendard — the de-facto Korean product font, which the dropdown/sub-nav faces resolve to (orig_pretendard_medium).
• UI: Madefor (Wix Madefor) — the system UI face used for menu chrome and small labels.

Hierarchy

Principles

• Heavy display, quiet body: The custom display webfont carries poster-scale headlines; Pretendard and Madefor carry the calm reading and UI text. Weight contrast comes from the typeface cut, not from a numeric weight ramp (everything computes as 400).
• Navy owns headings: Section headings are #1a2352, not black — the warmth of the navy keeps a benchmark-heavy page feeling human.
• Numbers are hero-sized: Corca leans on big metrics (46px stat numbers) as proof, giving quantitative credibility its own display tier.
• Hangul-first body: Body sits around 15–17px for comfortable dense hangul, with Pretendard as the resolved Korean face.

Layout

Spacing System

• Base rhythm: 8px, with a notable 8px 15px button padding measured on the pill CTAs
• Scale: 8px, 15px, 16px, 24px, 48px, 64px
• Sections are tall, full-bleed colored bands stacked vertically; internal content is centered with generous vertical breathing room

Grid & Container

• Centered single-column hero anchored by the oversized display headline
• Product showcases alternate as full-width colored bands (white, lavender #faeeff, amber #fdd484, deep purple #402060), each themed to its product
• Feature/metric cards arrange in horizontal rows beneath section headings
• Achievement/press blocks pair an eyebrow (#046cb8) + navy heading + outline "기사 보기" pill

Whitespace Philosophy

• Color blocks over borders: sections separate by switching full-width background color, not by rules or shadows
• Breathing room: despite dense corporate content (metrics, press, awards), each band is airy with large vertical gaps
• Proof gets space: the big stat numbers (100,000+, 1.7M+) are given their own generous band as social proof

Border Radius Scale

• Small (10px): surface cards, small panels
• Medium (16px): feature cards — the workhorse card radius
• Large (24px): larger containers
• Pill (50px): filled CTAs
• Full (999px / 9999px): outline pills, circular icon buttons

Responsive Behavior

Breakpoints

Touch Targets

• Pill CTAs at 51–60px height with 8px 15px padding — comfortably tappable
• Outline "기사 보기" pill at 38px height
• Nav items spaced within the 78px header

Collapsing Strategy

• Hero: oversized display headline scales down on mobile
• Colored product bands maintain full-width treatment, reduce internal padding
• Feature/metric rows: multi-column → stacked single column
• Big stat numbers wrap to a 2×2 grid on narrow viewports

Image Behavior

• Product screenshots and illustrations carry no shadow at any size, consistent with the flat system
• Cards maintain their 10px / 16px radius across breakpoints

Elevation & Depth

Shadow Philosophy: Corca is a near-shadowless, flat system. Live inspection returned box-shadow: none across the hero, navigation, headings and cards. Depth is communicated by stacking full-width color bands (white, lavender #faeeff, amber #fdd484, deep purple #402060) rather than by elevation. When a card needs to feel distinct, the system reaches for a tinted surface (#f1f5f9) or a colored fill, never a drop shadow. This keeps the page feeling fast, modern and web-native — appropriate for a company selling AI products.

Values kept in prose

Measured values the DESIGN.md token grammar cannot carry, kept verbatim:

• shadow.none: none

Motion & Easing

Durations:

Easings:

Motion rules: Motion is functional and calm — consistent with the flat, proof-forward aesthetic. Pill CTAs respond to press with a subtle scale/opacity shift; colored product bands and metrics fade-in from below at motion-standard / ease-enter as the reader scrolls. No bounce or spring — an AI company signals steady competence, not gimmickry. Under prefers-reduced-motion: reduce, all transitions collapse to instant and scroll reveals become immediate; the site stays fully functional.

Components

Buttons

Primary CTA (Try it now)

• Background: #ffffff
• Text: #1a2352
• Radius: 50px
• Padding: 8px 15px
• Height: 60px
• Font: 16px / 400
• Use: Product-page primary pill CTA — a white fill with a dark navy label sitting on the dark hero

Learn-More (자세히 보기)

• Background: #777cdc
• Text: #ffffff
• Radius: 50px
• Padding: 8px 15px
• Height: 51px
• Font: 16px / 400
• Use: Section "자세히 보기" filled pill; the fill is themed per product card (a sibling card uses #605070)

Outline Pill (기사 보기)

• Background: transparent
• Text: #1a2352
• Border: 1px solid #000000
• Radius: 999px
• Padding: 8px 15px
• Height: 38px
• Use: "기사 보기" article link — a low-emphasis outline pill with a thin dark ring

Cards & Containers

White Feature Card

• Background: #ffffff
• Radius: 16px
• Use: White product / feature card on the main canvas (flat, no shadow)

Surface Card

• Background: #f1f5f9
• Radius: 10px
• Use: Light-grey surface panel grouping related content

Badges

Achievement Eyebrow

• Text: #046cb8
• Radius: 8px
• Use: Blue eyebrow label above credibility headings ("아기유니콘 선정", "세계 7위")

Navigation

• Background: #ffffff
• Text: #181818
• Font: 17px / 400 Madefor
• Height: 78px header
• Active: moonlight cream #fff3b7 text on the active product surface (Moonlight)
• Use: Top horizontal nav ("제품 소개", "회사 소개", "채용", "블로그")

Verified: 2026-07-02 (omd:add-reference CREATE — Tier 1 live inspect, 2 surfaces) Tier 1 sources: https://www.corca.ai/ , https://www.corca.ai/en/moonlight , https://corca.co.kr/ , https://github.com/corca-ai Tier 2 sources: getdesign.md/corca (0 DESIGN.md files — no data); styles.refero.design/?q=corca (no corca-specific match — returns generic catalog) Conflicts unresolved: none

States

Do's and Don'ts

Do

• Use navy ink (#1a2352) for every section heading — it is the brand spine
• Reserve achievement blue (#046cb8) for eyebrow labels above credibility claims
• Give each product its own color world (Moonlight = deep purple #402060 + cream #fff3b7)
• Use fully rounded pills for CTAs — 50px filled, 999px outline
• Keep the system flat — separate sections with color blocks, not shadows
• Set headlines in the heavy display webfont and body in Pretendard / Madefor
• Give big proof numbers their own large stat tier (46px)
• Use white (#ffffff) fills for primary CTAs sitting on dark or colored hero bands

Don't

• Use pure black for headings — reserve navy #1a2352; keep #000000 for thin outlines and nav only
• Spread the achievement blue (#046cb8) across body text — it is an eyebrow accent
• Add drop shadows for elevation — Corca is a flat, shadow-free system
• Use sharp/square corners on CTAs — CTAs are always pills
• Mix product themes on one surface — keep Moonlight's purple/cream separate from the corporate navy
• Set body copy in the display webfont — Pretendard and Madefor own reading and UI text
• Bury the metrics — the big numbers are social proof and deserve room

Voice & Tone

Corca's voice is confident, mission-framed, and proof-forward — a young AI lab that has receipts and is not shy about them. The corporate headline "코르카는 AI 기술로 세상을 바꾸고 있습니다" ("Corca is changing the world with AI technology") sets a declarative, present-tense register: not "we will" but "we are." Product copy is plain and benefit-first ("논문을 더 빠르고 쉽게 이해하기" / "AI Colleague for Research Papers"), and credibility is stated as numbers and rankings rather than adjectives.

Voice samples (verbatim from live surfaces):

• "코르카는 AI 기술로 세상을 바꾸고 있습니다." — homepage hero H1 (mission, present tense). (verified live 2026-07-02)
• "AI Colleague for Research Papers!" — Moonlight EN hero H1 (product promise). (verified live 2026-07-02)
• "세계 7위, 국내 기업 중 1위 쾌거!" — homepage achievement eyebrow. (verified live 2026-07-02)

Forbidden register: vague hype without numbers, fear-based urgency, buzzword stacking ("revolutionary, next-gen, cutting-edge"), and copy that hides the product behind jargon. Corca prefers a plain claim plus a verifiable number.

Agent Prompt Guide

Quick Color Reference

• Primary heading / brand: Corca Navy (#1a2352)
• Achievement eyebrow: Blue (#046cb8)
• Bright section blue: (#419eff)
• Moonlight accent: Cream (#fff3b7) on Deep Purple (#402060)
• Soft section washes: Lavender (#faeeff), Amber (#fdd484), Sky (#d9e5f5), Steel (#36597d)
• Body text: Slate (#324158); Nav: Soft Ink (#181818); Outline: Black (#000000)
• Canvas: White (#ffffff); Surface: Grey (#f1f5f9); Muted: (#bbbbbb)
• Themed card fills: Violet (#777cdc), Plum (#605070)

Example Component Prompts

• "Create a dark hero: oversized ~60px display headline in white (#ffffff), one white pill CTA (#ffffff fill, #1a2352 navy label, 50px radius, 8px 15px padding). Mission-line copy, no shadow."
• "Design a feature card: white (#ffffff) background, 16px radius, no shadow. Heading 32px display webfont in navy #1a2352; body 16px Pretendard in slate #324158."
• "Build an achievement block: blue eyebrow label (#046cb8) over a navy #1a2352 heading, with an outline 'read article' pill (transparent fill, 1px solid #000000, 999px radius)."
• "Make a Moonlight product band: deep purple (#402060) background, moonlight cream (#fff3b7) accents and active nav, white headline. Everything flat, pill CTAs."

Iteration Guide

1. Navy #1a2352 is the heading spine; never pure black for headings
2. Pills everywhere for CTAs — 50px filled, 999px outline
3. No shadows — separate sections with full-width color blocks
4. Achievement blue #046cb8 is an eyebrow accent only
5. Give each product its own color world; don't mix Moonlight purple with corporate navy
6. Big stat numbers (46px) are proof — give them room
7. Display webfont for headlines, Pretendard / Madefor for body and UI

Governance

Known Gaps

• Contrast, button-learn-more. Text #ffffff on #777cdc measures 3.68:1, below the WCAG AA 4.5:1 minimum for normal-size text. Recorded as measured, not adjusted.