improvement(ui): share public headings and product typography (#8069)

* improvement(emcn): share larger chip and field geometry

* improvement(ui): share public authentication headings

* improvement(ui): share workflow panel tab buttons (#8072)

* improvement(ui): share workflow panel tab buttons

* improvement(ui): reuse chips for panel selection actions (#8166)

Co-authored-by: Bill Leoutsakos <billleoutsakos@Bills-MacBook-Pro.local>

---------

Co-authored-by: Bill Leoutsakos <billleoutsakos@Bills-MacBook-Pro.local>

* refactor(ui): share account headings and auth control sizing (#8074)

* improvement(ui): share account status headings

* improvement(ui): use shared sizing for auth controls

* refactor(emcn): share invalid OTP slot treatment (#8246)

* Add shared invalid state to EMCN OTP slots

* fix(ui): distinguish OTP verification from resend errors

* test(ui): type OTP input queries as inputs

* test(ui): import OTP test button prop type

* test(ui): use shared logger mock in OTP regression

---------

Co-authored-by: Bill Leoutsakos <billleoutsakos@Bills-MacBook-Pro.local>

---------

Co-authored-by: Bill Leoutsakos <billleoutsakos@Bills-MacBook-Pro.local>
Co-authored-by: Waleed <walif6@gmail.com>

* improvement(ui): share missing resource states (#8078)

Co-authored-by: Bill Leoutsakos <billleoutsakos@Bills-MacBook-Pro.local>

* improvement(ui): reuse avatars for owners and members (#8079)

Co-authored-by: Bill Leoutsakos <billleoutsakos@Bills-MacBook-Pro.local>

* fix(ui): adopt exact shared 18px typography token

* fix(ui): preserve panel and auth control semantics

---------

Co-authored-by: Bill Leoutsakos <billleoutsakos@Bills-MacBook-Pro.local>
Co-authored-by: Waleed <walif6@gmail.com>

Author: 3 people

.claude/rules/sim-settings-pages.md

@@ -117,7 +117,7 @@ Settings pages never use a literal `text-[Npx]` class — always the named Tailw
 scale token from the `@theme` block in `apps/sim/app/_styles/globals.css` (`text-micro`
 10px, `text-xs` 11px, `text-caption` 12px, `text-small` 13px, `text-sm` 14px
 [Tailwind default, unmodified], `text-base` 15px, `text-md` 16px, `text-lg` 18px
-[Tailwind default]). A literal size is either a straight rename to the equivalent
+[the exact Tailwind default adopted in globals.css]). A literal size is either a straight rename to the equivalent
 token (if the pixel value matches one exactly) or a sign the page never migrated —
 grep `text-\[1[0-8]px\]` under `apps/sim/app/workspace/*/settings/**` and
 `apps/sim/ee/**` to find stragglers.

.claude/rules/sim-styling.md

@@ -47,7 +47,11 @@ setWidth: (width) => {
 
 ## Text Scale
 
-Custom font sizes (the `@theme` block in `apps/sim/app/_styles/globals.css`): `text-micro`=10px, `text-xs`=11px, `text-caption`=12px, `text-small`=13px, `text-base`=15px. `text-sm` is Tailwind default 14px. Field titles use `text-small` (13px); hints/errors use `text-caption` (12px).
+Use the named scale in `apps/sim/app/_styles/globals.css`: `text-micro`=10px, `text-xs`=11px, `text-caption`=12px, `text-small`=13px, `text-base`=15px, `text-md`=16px, `text-title`=28px, `text-title-lg`=32px, and `text-display`=40px. The explicitly adopted stock entries retain their rem units and default leading: `text-sm`=0.875rem, `text-lg`=1.125rem, `text-xl`=1.25rem, and `text-2xl`=1.5rem (14/18/20/24px at the default root size). Field titles use `text-small`; hints/errors use `text-caption`; workflow titles use `text-md`.
+
+Preserve explicit line heights when replacing arbitrary sizes. Where the old size inherited its line height, use `leading-[inherit]` if the named utility would otherwise add a different default. Keep document-relative heading/code recipes and the thinking loader's proportional label sizing distinct from ordinary UI text.
+
+Use `font-inter` within the existing scoped Inter loading boundary; the utility does not load the font globally. Keep monospace for code, JSON, and credentials.
 
 Icons default `size-[14px]`. Equal h/w → `size-*` (`size-[14px]`, `size-4`), never `h-N w-N`.
 
@@ -67,7 +71,7 @@ A scroll region that can hide rows past an edge uses `useScrollEdges` with `scro
 
 ## Font Weight
 
-Three steps, Tailwind's stock scale, nothing else: **`font-normal` (400)**, **`font-medium` (500)**, **`font-semibold` (600)**. 400 is the document default, so body text, chip labels, sidebar items, and headings carry **no weight class at all** — they inherit. Reach for a class only to step *up* from body.
+Three steps, explicitly adopted from Tailwind's stock scale in globals.css, nothing else: **`font-normal` (400)**, **`font-medium` (500)**, **`font-semibold` (600)**. 400 is the document default, so body text, chip labels, sidebar items, and headings carry **no weight class at all** — they inherit. Reach for a class to step *up* from body or to reset meaningful inherited weight. Raw CSS references the same `--font-weight-normal`, `--font-weight-medium`, and `--font-weight-semibold` definitions; their values remain 400/500/600.
 
 Never write an arbitrary weight (`font-[380]`, `font-[430]`, `font-[450]`, …), and never set `fontWeight` in an inline `style`. There was previously a CSS-variable weight scale (`--font-weight-base/medium/semibold`, remapping `font-medium` to 440/480) plus seven ad-hoc values clustered between 380 and 500; it was deleted because nothing read as hierarchical. Off-scale values are only acceptable where the design system genuinely cannot reach — react-email templates and the static `apps/sim/emails/broadcasts/*.html`, which email clients render without CSS variables.
 

.cursor/rules/sim-settings-pages.mdc

@@ -114,7 +114,7 @@ Settings pages never use a literal `text-[Npx]` class — always the named Tailw
 scale token from the `@theme` block in `apps/sim/app/_styles/globals.css` (`text-micro`
 10px, `text-xs` 11px, `text-caption` 12px, `text-small` 13px, `text-sm` 14px
 [Tailwind default, unmodified], `text-base` 15px, `text-md` 16px, `text-lg` 18px
-[Tailwind default]). A literal size is either a straight rename to the equivalent
+[the exact Tailwind default adopted in globals.css]). A literal size is either a straight rename to the equivalent
 token (if the pixel value matches one exactly) or a sign the page never migrated —
 grep `text-\[1[0-8]px\]` under `apps/sim/app/workspace/*/settings/**` and
 `apps/sim/ee/**` to find stragglers.

.cursor/rules/sim-styling.mdc

@@ -47,7 +47,11 @@ setWidth: (width) => {
 
 ## Text Scale
 
-Custom font sizes (the `@theme` block in `apps/sim/app/_styles/globals.css`): `text-micro`=10px, `text-xs`=11px, `text-caption`=12px, `text-small`=13px, `text-base`=15px. `text-sm` is Tailwind default 14px. Field titles use `text-small` (13px); hints/errors use `text-caption` (12px).
+Use the named scale in `apps/sim/app/_styles/globals.css`: `text-micro`=10px, `text-xs`=11px, `text-caption`=12px, `text-small`=13px, `text-base`=15px, `text-md`=16px, `text-title`=28px, `text-title-lg`=32px, and `text-display`=40px. The explicitly adopted stock entries retain their rem units and default leading: `text-sm`=0.875rem, `text-lg`=1.125rem, `text-xl`=1.25rem, and `text-2xl`=1.5rem (14/18/20/24px at the default root size). Field titles use `text-small`; hints/errors use `text-caption`; workflow titles use `text-md`.
+
+Preserve explicit line heights when replacing arbitrary sizes. Where the old size inherited its line height, use `leading-[inherit]` if the named utility would otherwise add a different default. Keep document-relative heading/code recipes and the thinking loader's proportional label sizing distinct from ordinary UI text.
+
+Use `font-inter` within the existing scoped Inter loading boundary; the utility does not load the font globally. Keep monospace for code, JSON, and credentials.
 
 Icons default `size-[14px]`. Equal h/w → `size-*` (`size-[14px]`, `size-4`), never `h-N w-N`.
 
@@ -67,7 +71,7 @@ A scroll region that can hide rows past an edge uses `useScrollEdges` with `scro
 
 ## Font Weight
 
-Three steps, Tailwind's stock scale, nothing else: **`font-normal` (400)**, **`font-medium` (500)**, **`font-semibold` (600)**. 400 is the document default, so body text, chip labels, sidebar items, and headings carry **no weight class at all** — they inherit. Reach for a class only to step *up* from body.
+Three steps, explicitly adopted from Tailwind's stock scale in globals.css, nothing else: **`font-normal` (400)**, **`font-medium` (500)**, **`font-semibold` (600)**. 400 is the document default, so body text, chip labels, sidebar items, and headings carry **no weight class at all** — they inherit. Reach for a class to step *up* from body or to reset meaningful inherited weight. Raw CSS references the same `--font-weight-normal`, `--font-weight-medium`, and `--font-weight-semibold` definitions; their values remain 400/500/600.
 
 Never write an arbitrary weight (`font-[380]`, `font-[430]`, `font-[450]`, …), and never set `fontWeight` in an inline `style`. There was previously a CSS-variable weight scale (`--font-weight-base/medium/semibold`, remapping `font-medium` to 440/480) plus seven ad-hoc values clustered between 380 and 500; it was deleted because nothing read as hierarchical. Off-scale values are only acceptable where the design system genuinely cannot reach — react-email templates and the static `apps/sim/emails/broadcasts/*.html`, which email clients render without CSS variables.
 

apps/sim/app/(auth)/components/auth-header.tsx

@@ -14,7 +14,9 @@ interface AuthHeaderProps {
 export function AuthHeader({ title, description }: AuthHeaderProps) {
   return (
     <div className='space-y-1 text-center'>
-      <h1 className='text-balance text-[32px] text-[var(--text-primary)] leading-[1.2]'>{title}</h1>
+      <h1 className='text-balance text-[var(--text-primary)] text-title-lg leading-[1.2]'>
+        {title}
+      </h1>
       {description != null && (
         <p className='text-[var(--text-muted)] text-base leading-[1.5]'>{description}</p>
       )}

apps/sim/app/(auth)/components/auth-nav-prompt.tsx

@@ -19,7 +19,7 @@ export function AuthNavPrompt({ prompt, href, linkLabel, onNavigate }: AuthNavPr
   return (
     <div className='flex items-center justify-center gap-1 text-sm'>
       {prompt && <span className='text-[var(--text-muted)]'>{prompt}</span>}
-      <ChipLink href={href} onClick={onNavigate} className='border border-[var(--border-1)]'>
+      <ChipLink href={href} onClick={onNavigate} variant='outline'>
         {linkLabel}
       </ChipLink>
     </div>

apps/sim/app/(auth)/components/auth-submit-button.tsx

@@ -1,6 +1,5 @@
 import type { ReactNode } from 'react'
 import { Chip, Loader } from '@sim/emcn'
-import { AUTH_BUTTON_CLASS } from '@/app/(auth)/components/constants'
 
 interface AuthSubmitButtonProps {
   children: ReactNode
@@ -32,7 +31,8 @@ export function AuthSubmitButton({
       onClick={onClick}
       disabled={disabled || loading}
       fullWidth
-      className={AUTH_BUTTON_CLASS}
+      size='lg'
+      align='center'
     >
       {loading ? (
         <span className='flex items-center gap-2'>

apps/sim/app/(auth)/components/constants.ts

@@ -1,11 +1,10 @@
 'use client'
 
 import { useState } from 'react'
-import { ChipInput, type ChipInputProps, cn } from '@sim/emcn'
+import { ChipInput, type ChipInputProps } from '@sim/emcn'
 import { Eye, EyeOff } from '@sim/emcn/icons'
-import { AUTH_CONTROL_HEIGHT } from '@/app/(auth)/components/constants'
 
-type PasswordInputProps = Omit<ChipInputProps, 'type' | 'icon' | 'endAdornment'>
+type PasswordInputProps = Omit<ChipInputProps, 'type' | 'icon' | 'endAdornment' | 'size'>
 
 /**
  * A {@link ChipInput} that owns the password reveal toggle — the eye button is
@@ -19,7 +18,8 @@ export function PasswordInput({ error, className, ...props }: PasswordInputProps
   return (
     <ChipInput
       {...props}
-      className={cn(AUTH_CONTROL_HEIGHT, className)}
+      size='lg'
+      className={className}
       type={visible ? 'text' : 'password'}
       error={error}
       endAdornment={

apps/sim/app/(auth)/components/password-input.tsx

@@ -1,13 +1,12 @@
 'use client'
 
 import { type ReactNode, useState } from 'react'
-import { Chip, cn } from '@sim/emcn'
+import { Chip } from '@sim/emcn'
 import { createLogger } from '@sim/logger'
 import { getErrorMessage } from '@sim/utils/errors'
 import { GithubIcon, GoogleIcon, MicrosoftIcon } from '@/components/icons'
 import { client } from '@/lib/auth/auth-client'
 import { DEFAULT_POST_AUTH_ROUTE } from '@/app/(auth)/auth-redirect'
-import { AUTH_BUTTON_CLASS } from '@/app/(auth)/components/constants'
 
 const logger = createLogger('SocialLoginButtons')
 
@@ -73,7 +72,9 @@ export function SocialLoginButtons({
     <Chip
       fullWidth
       leftIcon={GithubIcon}
-      className={cn(AUTH_BUTTON_CLASS, 'border border-[var(--border-1)]')}
+      variant='outline'
+      size='lg'
+      align='center'
       disabled={!githubAvailable || isGithubLoading}
       onClick={signInWithGithub}
     >
@@ -85,7 +86,9 @@ export function SocialLoginButtons({
     <Chip
       fullWidth
       leftIcon={GoogleIcon}
-      className={cn(AUTH_BUTTON_CLASS, 'border border-[var(--border-1)]')}
+      variant='outline'
+      size='lg'
+      align='center'
       disabled={!googleAvailable || isGoogleLoading}
       onClick={signInWithGoogle}
     >
@@ -97,7 +100,9 @@ export function SocialLoginButtons({
     <Chip
       fullWidth
       leftIcon={MicrosoftIcon}
-      className={cn(AUTH_BUTTON_CLASS, 'border border-[var(--border-1)]')}
+      variant='outline'
+      size='lg'
+      align='center'
       disabled={!microsoftAvailable || isMicrosoftLoading}
       onClick={signInWithMicrosoft}
     >