Design System Inspiration of Notion

1. Visual Theme & Atmosphere

Notion's website embodies the philosophy of the tool itself: a blank canvas that gets out of your way. The design system is built on warm neutrals rather than cold grays, creating a distinctly approachable minimalism that feels like quality paper rather than sterile glass. The page canvas is pure white (#ffffff) but the text isn't pure black -- it's a warm near-black (rgba(0,0,0,0.95)) that softens the reading experience imperceptibly. The warm gray scale (#f6f5f4, #31302e, #615d59, #a39e98) carries subtle yellow-brown undertones, giving the interface a tactile, almost analog warmth.

The custom NotionInter font (a modified Inter) is the backbone of the system. At display sizes (64px), it uses aggressive negative letter-spacing (-2.125px), creating headlines that feel compressed and precise. The weight range is broader than typical systems: 400 for body, 500 for UI elements, 600 for semi-bold labels, and 700 for display headings. OpenType features "lnum" (lining numerals) and "locl" (localized forms) are enabled on larger text, adding typographic sophistication that rewards close reading.

What makes Notion's visual language distinctive is its border philosophy. Rather than heavy borders or shadows, Notion uses ultra-thin 1px solid rgba(0,0,0,0.1) borders -- borders that exist as whispers, barely perceptible division lines that create structure without weight. The shadow system is equally restrained: multi-layer stacks with cumulative opacity never exceeding 0.05, creating depth that's felt rather than seen.

Key Characteristics:

• NotionInter (modified Inter) with negative letter-spacing at display sizes (-2.125px at 64px)
• Warm neutral palette: grays carry yellow-brown undertones (#f6f5f4 warm white, #31302e warm dark)
• Near-black text via rgba(0,0,0,0.95) -- not pure black, creating micro-warmth
• Ultra-thin borders: 1px solid rgba(0,0,0,0.1) throughout -- whisper-weight division
• Multi-layer shadow stacks with sub-0.05 opacity for barely-there depth
• Notion Blue (#0075de) as the singular accent color for CTAs and interactive elements
• Pill badges (9999px radius) with tinted blue backgrounds for status indicators
• 8px base spacing unit with an organic, non-rigid scale

2. Color Palette & Roles

Primary

• Notion Black (rgba(0,0,0,0.95) / #000000f2): Primary text, headings, body copy. The 95% opacity softens pure black without sacrificing readability.
• Pure White (#ffffff): Page background, card surfaces, button text on blue.
• Notion Blue (#0075de): Primary CTA, link color, interactive accent -- the only saturated color in the core UI chrome.

Brand Secondary

• Deep Navy (#213183): Secondary brand color, used sparingly for emphasis and dark feature sections.
• Active Blue (#005bab): Button active/pressed state -- darker variant of Notion Blue.

Warm Neutral Scale

• Warm White (#f6f5f4): Background surface tint, section alternation, subtle card fill. The yellow undertone is key.
• Warm Dark (#31302e): Dark surface background, dark section text. Warmer than standard grays.
• Warm Gray 500 (#615d59): Secondary text, descriptions, muted labels.
• Warm Gray 300 (#a39e98): Placeholder text, disabled states, caption text.

Semantic Accent Colors

• Teal (#2a9d99): Success states, positive indicators.
• Green (#1aae39): Confirmation, completion badges.
• Orange (#dd5b00): Warning states, attention indicators.
• Pink (#ff64c8): Decorative accent, feature highlights.
• Purple (#391c57): Premium features, deep accents.
• Brown (#523410): Earthy accent, warm feature sections.

Interactive

• Link Blue (#0075de): Primary link color with underline-on-hover.
• Link Light Blue (#62aef0): Lighter link variant for dark backgrounds.
• Focus Blue (#097fe8): Focus ring on interactive elements.
• Badge Blue Bg (#f2f9ff): Pill badge background, tinted blue surface.
• Badge Blue Text (#097fe8): Pill badge text, darker blue for readability.

Shadows & Depth

• Card Shadow (rgba(0,0,0,0.04) 0px 4px 18px, rgba(0,0,0,0.027) 0px 2.025px 7.84688px, rgba(0,0,0,0.02) 0px 0.8px 2.925px, rgba(0,0,0,0.01) 0px 0.175px 1.04062px): Multi-layer card elevation.
• Deep Shadow (rgba(0,0,0,0.01) 0px 1px 3px, rgba(0,0,0,0.02) 0px 3px 7px, rgba(0,0,0,0.02) 0px 7px 15px, rgba(0,0,0,0.04) 0px 14px 28px, rgba(0,0,0,0.05) 0px 23px 52px): Five-layer deep elevation for modals and featured content.
• Whisper Border (1px solid rgba(0,0,0,0.1)): Standard division border -- cards, dividers, sections.

3. Typography Rules

Font Family

• Primary: NotionInter, with fallbacks: Inter, -apple-system, system-ui, Segoe UI, Helvetica, Apple Color Emoji, Arial, Segoe UI Emoji, Segoe UI Symbol
• OpenType Features: "lnum" (lining numerals) and "locl" (localized forms) enabled on display and heading text.

Hierarchy

Principles

• Compression at scale: NotionInter at display sizes uses -2.125px letter-spacing at 64px, progressively relaxing to -0.625px at 26px and normal at 16px. The compression creates density at headlines while maintaining readability at body sizes.
• Four-weight system: 400 (body/reading), 500 (UI/interactive), 600 (emphasis/navigation), 700 (headings/display). The broader weight range compared to most systems allows nuanced hierarchy.
• Warm scaling: Line height tightens as size increases -- 1.50 at body (16px), 1.23-1.27 at sub-headings, 1.00-1.04 at display. This creates denser, more impactful headlines.
• Badge micro-tracking: The 12px badge text uses positive letter-spacing (0.125px) -- the only positive tracking in the system, creating wider, more legible small text.

4. Component Stylings

Buttons

Primary Blue

• Background: #0075de (Notion Blue)
• Text: #ffffff
• Padding: 8px 16px
• Radius: 4px (subtle)
• Border: 1px solid transparent
• Hover: background darkens to #005bab
• Active: scale(0.9) transform
• Focus: 2px solid focus outline, var(--shadow-level-200) shadow
• Use: Primary CTA ("Get Notion free", "Try it")

Secondary / Tertiary

• Background: rgba(0,0,0,0.05) (translucent warm gray)
• Text: #000000 (near-black)
• Padding: 8px 16px
• Radius: 4px
• Hover: text color shifts, scale(1.05)
• Active: scale(0.9) transform
• Use: Secondary actions, form submissions

Ghost / Link Button

• Background: transparent
• Text: rgba(0,0,0,0.95)
• Decoration: underline on hover
• Use: Tertiary actions, inline links

Pill Badge Button

• Background: #f2f9ff (tinted blue)
• Text: #097fe8
• Padding: 4px 8px
• Radius: 9999px (full pill)
• Font: 12px weight 600
• Use: Status badges, feature labels, "New" tags

Cards & Containers

• Background: #ffffff
• Border: 1px solid rgba(0,0,0,0.1) (whisper border)
• Radius: 12px (standard cards), 16px (featured/hero cards)
• Shadow: rgba(0,0,0,0.04) 0px 4px 18px, rgba(0,0,0,0.027) 0px 2.025px 7.84688px, rgba(0,0,0,0.02) 0px 0.8px 2.925px, rgba(0,0,0,0.01) 0px 0.175px 1.04062px
• Hover: subtle shadow intensification
• Image cards: 12px top radius, image fills top half

Inputs & Forms

• Background: #ffffff
• Text: rgba(0,0,0,0.9)
• Border: 1px solid #dddddd
• Padding: 6px
• Radius: 4px
• Focus: blue outline ring
• Placeholder: warm gray #a39e98

Navigation

• Clean horizontal nav on white, not sticky
• Brand logo left-aligned (33x34px icon + wordmark)
• Links: NotionInter 15px weight 500-600, near-black text
• Hover: color shift to var(--color-link-primary-text-hover)
• CTA: blue pill button ("Get Notion free") right-aligned
• Mobile: hamburger menu collapse
• Product dropdowns with multi-level categorized menus

Image Treatment

• Product screenshots with 1px solid rgba(0,0,0,0.1) border
• Top-rounded images: 12px 12px 0px 0px radius
• Dashboard/workspace preview screenshots dominate feature sections
• Warm gradient backgrounds behind hero illustrations (decorative character illustrations)

Distinctive Components

Feature Cards with Illustrations

• Large illustrative headers (The Great Wave, product UI screenshots)
• 12px radius card with whisper border
• Title at 22px weight 700, description at 16px weight 400
• Warm white (#f6f5f4) background variant for alternating sections

Trust Bar / Logo Grid

• Company logos (trusted teams section) in their brand colors
• Horizontal scroll or grid layout with team counts
• Metric display: large number + description pattern

Metric Cards

• Large number display (e.g., "$4,200 ROI")
• NotionInter 40px+ weight 700 for the metric
• Description below in warm gray body text
• Whisper-bordered card container

Interactive States

Consolidated state behavior across all interactive components.

• Default: Standard appearance with whisper border (1px solid rgba(0,0,0,0.1))
• Hover: Color shift on text, scale(1.05) transform on buttons, underline on links
• Active / Pressed: scale(0.9) transform, darker background variant (e.g. #005bab for Notion Blue)
• Focus: 2px solid focus ring in Focus Blue (#097fe8) + shadow level 200 reinforcement; supported on all interactive elements via keyboard tab navigation
• Disabled: Warm gray (#a39e98) text, primary actions reduce to rgba(0,117,222,0.3), ultra-thin border preserved

---

Verified: 2026-05-08 Tier 1 sources: notion.com/ko (live DOM via playwright — dropdown nav items 8px radius / 16px·400 / rgba(0,0,0,0.95) text; nav menu trigger 4px / 16px·400 / 30px height / 5×10 padding) Tier 2 sources: styles.refero.design — no Notion record at ?q=Notion. getdesign.md/notion — entry exists but only directory snippet ("Warm minimalism, serif headings, soft surfaces."). Tier 2 status: unavailable; Tier 1 (notion.com live inspect) authoritative. Conflicts unresolved: none. Notion's modest 4–8px radius spectrum and Geist-like nav typography confirmed in live DOM.

5. Layout Principles

Spacing System

• Base unit: 8px
• Scale: 2px, 3px, 4px, 5px, 6px, 7px, 8px, 11px, 12px, 14px, 16px, 24px, 32px
• Non-rigid organic scale with fractional values (5.6px, 6.4px) for micro-adjustments

Grid & Container

• Max content width: approximately 1200px
• Hero: centered single-column with generous top padding (80-120px)
• Feature sections: 2-3 column grids for cards
• Full-width warm white (#f6f5f4) section backgrounds for alternation
• Code/dashboard screenshots as contained with whisper border

Whitespace Philosophy

• Generous vertical rhythm: 64-120px between major sections. Notion lets content breathe with vast vertical padding.
• Warm alternation: White sections alternate with warm white (#f6f5f4) sections, creating gentle visual rhythm without harsh color breaks.
• Content-first density: Body text blocks are compact (line-height 1.50) but surrounded by ample margin, creating islands of readable content in a sea of white space.

Border Radius Scale

• Micro (4px): Buttons, inputs, functional interactive elements
• Subtle (5px): Links, list items, menu items
• Standard (8px): Small cards, containers, inline elements
• Comfortable (12px): Standard cards, feature containers, image tops
• Large (16px): Hero cards, featured content, promotional blocks
• Full Pill (9999px): Badges, pills, status indicators
• Circle (100%): Tab indicators, avatars

6. Depth & Elevation

Shadow Philosophy: Notion's shadow system uses multiple layers with extremely low individual opacity (0.01 to 0.05) that accumulate into soft, natural-looking elevation. The 4-layer card shadow spans from 1.04px to 18px blur, creating a gradient of depth rather than a single hard shadow. The 5-layer deep shadow extends to 52px blur at 0.05 opacity, producing ambient occlusion that feels like natural light rather than computer-generated depth. This layered approach makes elements feel embedded in the page rather than floating above it.

Decorative Depth

• Hero section: decorative character illustrations (playful, hand-drawn style)
• Section alternation: white to warm white (#f6f5f4) background shifts
• No hard section borders -- separation comes from background color changes and spacing

7. Do's and Don'ts

Brand Rules

• DO use warm near-black for text via rgba(0,0,0,0.95) — pure #000000 reads as cold and clinical against Notion's warm canvas.
• DON'T use cold grays (#9ca3af, #6b7280) — they break the warm yellow-brown undertone that defines Notion's analog feel.
• DO apply aggressive negative tracking (-2.125px at 64px) on display headlines using NotionInter (or standard Inter).
• DON'T use default tracking on display sizes — Notion's typography is precisely engineered, not casual.
• DO use ultra-thin 1px solid rgba(0,0,0,0.1) borders as the dominant separation pattern — they exist as whispers.
• DON'T use heavy borders, opaque colors, or visible shadows — Notion's depth is felt, not seen.
• DO stack multi-layer shadows with each layer below 0.05 opacity for cumulative depth.
• DON'T use single-layer drop shadows over 0.1 opacity — they read as heavy and break the analog warmth.
• DO reserve Notion Blue #0075de for CTAs and interactive elements only — it's the singular accent.
• DON'T scatter blue across borders, dividers, or decorative elements — the brand uses blue surgically.
• DO enable OpenType "lnum" and "locl" features on larger text — they reward close reading.
• DON'T disable these features for Latin-only contexts — they're part of Notion's typographic refinement.

Accessibility

• DO ensure visible focus indicators on every interactive element — 2px solid outline in Focus Blue (#097fe8) plus shadow level 200 reinforcement. Tab navigation must work everywhere.
• DO maintain WCAG AA-or-better contrast ratios:
  • Primary text (rgba(0,0,0,0.95)) on white: ~18:1 (exceeds WCAG AAA)
  • Secondary text (#615d59) on white: ~5.5:1 (WCAG AA)
  • Blue CTA (#0075de) on white: ~4.6:1 (WCAG AA for large text)
  • Badge text (#097fe8) on badge background (#f2f9ff): ~4.5:1 (WCAG AA for large text)
• DON'T drop focus rings to "look cleaner" — they are mandatory across the system, not decoration.
• DON'T use Notion Blue at less than ~4.5:1 against any background — the brand color carries an accessibility floor.

8. Responsive Behavior

Breakpoints

Touch Targets

• Buttons use comfortable padding (8px-16px vertical)
• Navigation links at 15px with adequate spacing
• Pill badges have 8px horizontal padding for tap targets
• Mobile menu toggle uses standard hamburger button

Collapsing Strategy

• Hero: 64px display -> scales to 40px -> 26px on mobile, maintains proportional letter-spacing
• Navigation: horizontal links + blue CTA -> hamburger menu
• Feature cards: 3-column -> 2-column -> single column stacked
• Product screenshots: maintain aspect ratio with responsive images
• Trust bar logos: grid -> horizontal scroll on mobile
• Footer: multi-column -> stacked single column
• Section spacing: 80px+ -> 48px on mobile

Image Behavior

• Workspace screenshots maintain whisper border at all sizes
• Hero illustrations scale proportionally
• Product screenshots use responsive images with consistent border radius
• Full-width warm white sections maintain edge-to-edge treatment

9. Agent Prompt Guide

Quick Color Reference

• Primary CTA: Notion Blue (#0075de)
• Background: Pure White (#ffffff)
• Alt Background: Warm White (#f6f5f4)
• Heading text: Near-Black (rgba(0,0,0,0.95))
• Body text: Near-Black (rgba(0,0,0,0.95))
• Secondary text: Warm Gray 500 (#615d59)
• Muted text: Warm Gray 300 (#a39e98)
• Border: 1px solid rgba(0,0,0,0.1)
• Link: Notion Blue (#0075de)
• Focus ring: Focus Blue (#097fe8)

Example Component Prompts

• "Create a hero section on white background. Headline at 64px NotionInter weight 700, line-height 1.00, letter-spacing -2.125px, color rgba(0,0,0,0.95). Subtitle at 20px weight 600, line-height 1.40, color #615d59. Blue CTA button (#0075de, 4px radius, 8px 16px padding, white text) and ghost button (transparent bg, near-black text, underline on hover)."
• "Design a card: white background, 1px solid rgba(0,0,0,0.1) border, 12px radius. Use shadow stack: rgba(0,0,0,0.04) 0px 4px 18px, rgba(0,0,0,0.027) 0px 2.025px 7.85px, rgba(0,0,0,0.02) 0px 0.8px 2.93px, rgba(0,0,0,0.01) 0px 0.175px 1.04px. Title at 22px NotionInter weight 700, letter-spacing -0.25px. Body at 16px weight 400, color #615d59."
• "Build a pill badge: #f2f9ff background, #097fe8 text, 9999px radius, 4px 8px padding, 12px NotionInter weight 600, letter-spacing 0.125px."
• "Create navigation: white header. NotionInter 15px weight 600 for links, near-black text. Blue pill CTA 'Get Notion free' right-aligned (#0075de bg, white text, 4px radius)."
• "Design an alternating section layout: white sections alternate with warm white (#f6f5f4) sections. Each section has 64-80px vertical padding, max-width 1200px centered. Section heading at 48px weight 700, line-height 1.00, letter-spacing -1.5px."

Iteration Guide

1. Always use warm neutrals -- Notion's grays have yellow-brown undertones (#f6f5f4, #31302e, #615d59, #a39e98), never blue-gray
2. Letter-spacing scales with font size: -2.125px at 64px, -1.875px at 54px, -0.625px at 26px, normal at 16px
3. Four weights: 400 (read), 500 (interact), 600 (emphasize), 700 (announce)
4. Borders are whispers: 1px solid rgba(0,0,0,0.1) -- never heavier
5. Shadows use 4-5 layers with individual opacity never exceeding 0.05
6. The warm white (#f6f5f4) section background is essential for visual rhythm
7. Pill badges (9999px) for status/tags, 4px radius for buttons and inputs
8. Notion Blue (#0075de) is the only saturated color in core UI -- use it sparingly for CTAs and links

---

10. Voice & Tone

Notion's voice operates on two registers. Current marketing copy — "The AI workspace that works for you.", "Meet the night shift.", "More productivity. Fewer tools." — is terse, imperative, and confidently practical. But when Notion writes about itself at length (careers, about, long-form blog), the voice shifts to lineage: Alan Kay quotes, references to "early computing pioneers", and the now-famous LEGO metaphor "a set of Legos (if Legos were designed by The New York Times)". The dual register is the signature — pragmatic at the surface, intellectual at the foundation.

Forbidden phrases. "Revolutionary", "game-changer", "unleash", "next-generation", "10x". Toast strings like "You're amazing! 🎉". Corporate verbs like "leverage", "synergize", "optimize" as self-descriptors. Emoji at the start of product-surface strings — Notion treats emoji as first-class block icons for users; the product's own voice is not emoji-spammy. Adjective stacks on capabilities ("powerful, flexible, intuitive").

11. Brand Narrative

Notion was founded March 8, 2013 in San Francisco by Ivan Zhao (CEO, designer/photographer background) and Simon Last (CTO, software engineer) (founderoo.co — Ivan Zhao, Simon Last, Frederick.ai). The first version (2013-2015) was Notion Beta, a no-code programming tool; the team raised ~$2M from angels and hired 4 employees. In 2015 they hit a crisis — parted ways with all 4 employees, Ivan borrowed $150,000 from his mother, and the two co-founders moved from San Francisco to Kyoto, Japan (less than half the cost). They worked 18 hours per day in a two-story rented house with a Shoji screen between bedrooms, rebuilding Notion from scratch (KITRUM — Ivan Zhao, Sequoia Capital — Notion Spotlight). Notion 1.0 launched in 2016; Notion 2.0 launched on Product Hunt in March 2018 to immediate productivity-game-changer reception. The user base passed 1 million by 2019 through viral Reddit/TikTok template-sharing communities. The founding thesis — still centered in Notion's careers and about pages — inherits from the "tools for thought" lineage of Douglas Engelbart and Alan Kay: software as a medium that, in Notion's own phrasing, "amplify[s] our imagination, extend[s] our intellect, and help[s] us model information in ways never before seen." Alan Kay is quoted directly on Notion's about page: "The best way to predict the future is to invent it." Notion frames itself explicitly as a continuation of that intellectual project.

The product metaphor is building blocks — what Notion's own careers page calls "a set of Legos (if Legos were designed by The New York Times)." That sentence captures the whole aesthetic in one line: modularity like Lego, but composed with the taste of a high editorial design desk. Every block (text, page, database, embed, toggle) is treated as a small typographic object with the care a New York Times story would get, not a spreadsheet cell.

What Notion refuses: the rigid schemas of traditional productivity software (Jira-style workflows, SharePoint-style wikis), the cold-glass aesthetic of enterprise SaaS (blue-gray palettes, generic illustrations of laptops), and playful-at-the-expense-of-serious design (cartoon mascots, decorative emoji applied by the product itself). What it embraces: warm neutrals with yellow-brown undertones, NotionInter as a modified but restrained Inter, whisper-thin 1px solid rgba(0,0,0,0.1) borders, and the user's own emoji choices as the primary source of color and personality on any given page.

12. Principles

1. Empower every person to use software their way. (Notion values, verbatim.) The product's job is to bend to the user's shape, not the other way around. Designs that force a workflow (forms, wizards, linear "steps") exist only in onboarding.
2. Be a truth seeker. (Notion values, verbatim.) Design decisions are backed by evidence or by an explicit opinion — never by hand-wave. When the truth changes, the design changes.
3. Be kind and direct. (Notion values, verbatim.) Product copy treats users as peers; error messages are specific and blameless; help docs don't patronize. Warmth does not require hedging.
4. Be a pace setter. (Notion values, verbatim.) Ship rhythm matters more than big unveils. Changelog entries are frequent and specific, not seasonal marketing events.
5. Blocks are the product. Every surface — page, doc, database, kanban — is a composition of the same small primitives. The visual treatment of a block is slightly-smaller-than-invisible: ultra-thin borders, near-zero shadows, warm neutrals. The block stays out of the way so the user's content can be the thing.
6. LEGO, but by The New York Times. The careers page's own phrase is the whole aesthetic guidance. Modular like Lego; composed with editorial taste. Never cartoonish; never sterile.
7. Warmth is tone, not decoration. The yellow-brown undertones in every gray (#f6f5f4, #31302e, #615d59) are the warmth. Illustrations and stickers are user-supplied; the product's own chrome provides warmth through color temperature alone.
8. Notion Blue is the one color. #0075de anchors CTAs and primary interactive moments. Everything else lives in the warm-neutral scale. Rainbow-accent design would betray the block-as-canvas philosophy.
9. The user's emoji is the brand's color. Page icons, cover images, emoji-as-bullet — these are first-class design surfaces, but they are user-supplied, not part of Notion's own voice. The product's own copy, buttons, and marketing do not emoji-spam.

13. Personas

Personas below are fictional archetypes informed by publicly observable Notion user segments (knowledge workers, startup operators, writers, researchers, small-team leaders), not individual people.

Sophie Tremblay, 29, Montreal. Operations manager at a 40-person B2B startup. Notion is her single workspace — company wiki, project tracker, personal second brain. Has ~60 pages arranged in a nested hierarchy she has built over three years. Notices immediately when a Notion release subtly shifts the line-height of body text because she reads in Notion for 5 hours a day. Would be horrified by any "redesign" that removed the warm neutral palette.

Hiroshi Tanaka, 37, Osaka. Independent researcher and academic writer. Uses Notion for literature review, manuscript drafting, and citation management. Values the block-level typography because his notes include Japanese, English, and occasional LaTeX — NotionInter's "lnum" and "locl" features matter to him directly. Reads long-form essays on the Notion blog for their ideas-first voice; ignores promotional posts.

Amaka Obi, 25, Lagos. Solo founder building a creator-economy SaaS. Uses Notion as internal docs, a public customer FAQ (via publishing), and a public customer-facing changelog. Uses emoji as page icons extensively — the page icons are effectively her brand's color scheme. Notices immediately when a SaaS competitor uses a Notion-clone layout without the "LEGO-by-NYT" taste, and writes them off.

Priscilla Mendes, 42, Lisbon. Chief of Staff at a Series-C SaaS company. Runs her CEO's weekly meeting off a Notion database, an embedded calendar, and a toggled prep doc. Does not use Notion AI by default — prefers the empty canvas because it forces her to write the agenda, not delegate it. Would not use Notion if the product copy sounded like it was selling her productivity.

14. States

15. Motion & Easing

Durations:

Easings:

Explicitly forbidden. No spring, no bounce, no overshoot. Blocks never "pop" into view. A bouncing callout block would undermine the "document as medium" feeling that underwrites the whole product.

Signature motions.

1. Block drag-handle reveal. On hover over a block's left gutter, the drag handle (⋮⋮ six-dot icon) fades in at motion-fast with ease-gentle. This is Notion's single most recognizable motion — the "handle that appears when you look at it" is the tactile proof that everything is a block.
2. Toggle expand. When a toggle block opens, its content expands over motion-standard with ease-gentle, height animating from 0 to natural. No scale, no fade — just height. The toggle's content feels physical, not theatrical.
3. Slash menu reveal. The / command menu appears at motion-fast with ease-enter. Keyboard-driven, so speed matters; 150ms is deliberately close to instant.
4. Cursor-follow comments. Live collaboration cursors update position at raw frame rate (no easing) — accurate position is more important than smooth motion when multiple people are typing simultaneously.
5. Reduce motion. Under prefers-reduced-motion: reduce, all motion-* tokens collapse to motion-instant. Toggle expansions become instantaneous. Drag handles appear immediately on hover. The document remains fully functional.