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Mobile-first responsive design patterns with 2025/2026 best practices for Tailwind CSS v4. \n \n Covers six breakpoint strategy, fluid typography and spacing using CSS clamp, and container queries for component-level responsiveness independent of viewport size \n Includes WCAG 2.2 compliant touch targets (44–48px minimum), safe area handling for notched devices, and practical layout patterns for grids, flexbox, and sidebars \n Provides mobile navigation patterns, responsive image and video techn

A comprehensive guide for creating animations that feel right, based on Emil Kowalski's "Animations on the Web" course.

Show loading indicator ONLY when there's no data to display.

Setup and usage of next-intl with prefix-based locale routing (e.g. /en/about, /ja/about). Use this skill in any Next.js App Router project.

Use this skill in two modes:

HTML-first slide deck creation with visual editing, validation, and export to PPTX or PDF. \n \n Plan decks with structured outlines before generating HTML slides; review visually in a browser editor before exporting \n Organize slides in dedicated workspace directories ( decks/<deck-name>/ ) with self-contained HTML files, one primary idea per slide \n Validate slide structure and convert approved decks to .pptx or .pdf using core commands: build-viewer , validate , convert , pdf \n Requir

Tamagui v1.x patterns beyond fundamentals: Config v4, compiler optimization, compound components, and gotchas.

Trade perpetual futures and spot tokens on Hyperliquid's fully on-chain DEX with automatic order execution and risk management. \n \n Supports crypto perps (BTC, ETH, SOL) and real-world assets/stocks (xyz:NVDA, xyz:TSLA, xyz:GOLD) with leverage up to asset maximums \n Includes 17 tools covering account info, market data, limit/market/post-only orders, stop loss/take profit triggers, position management, and fund transfers \n Agent automatically checks balances, detects asset types, sets leverag

Role: Phase 2/3 - Planning and Solutioning UX specialist

Tailwind CSS v4.0 was released January 22, 2025, featuring a complete rewrite with a Rust-based engine, CSS-first configuration, and significant performance improvements.