Rails Application Ui Blocks

CSS expert for flexbox, grid, animations, responsive design, and modern layout techniques

Use when building Next.js 16+ apps with React Server Components. Covers App Router, Cache Components (replacing experimental_ppr), streaming SSR, Server Actions, and React 19 patterns for server-first architecture.

UI design system toolkit covering design tokens, component documentation, responsive calculations, and developer handoff. Use for creating design systems, maintaining visual consistency, or facilitating design-dev handoff.

Production-grade frontend for Next.js, Vue, Angular, and Svelte. Use when building UI, fixing hydration errors, or setting up a new web project.

UI/UX design reference database. 50+ styles, 21 palettes, 50 font pairings, 20 charts, 8 stacks (React, Next.js, Vue, Svelte, SwiftUI, React Native, Flutter, Tailwind). Actions: plan, build, create, design, implement, review, fix, improve, optimize, enhance, refactor, check UI/UX code. Projects: website, landing page, dashboard, admin panel, e-commerce, SaaS, portfolio, blog, mobile app, .html, .tsx, .vue, .svelte. Elements: button, modal, navbar, sidebar, card, table, form, chart. Styles: glassmorphism, claymorphism, minimalism, brutalism, neumorphism, bento grid, dark mode, responsive, skeuomorphism, flat design. Topics: color palette, accessibility, animation, layout, typography, font pairing, spacing, hover, shadow, gradient.

Svelte 5 component and state-module patterns for Epicenter apps. Use when editing `.svelte`, `.svelte.ts`, or Svelte UI state code involving runes, `$props`, snippets, keyed lifecycles, `{#await}`, TanStack Query, `SvelteMap`/`SvelteSet`, `createSubscriber`, `$state.raw`, shadcn-svelte, or workspace observers.