Mini World demo
Mini World

A whimsical miniature diorama aesthetic featuring toy-like isometric scenes, soft rounded shapes, and charming handcrafted details that evoke a tiny playful world.
Category: Playful & Youth
Era: 2020s Modern
Prompt: 13.0 KB · 1809 words
# CODING AGENT SYSTEM PROMPT — "MINI WORLD" LANDING PAGE

**Role:** Act as a Senior Frontend Engineer and Expert UI Designer. Build a complete, production-quality landing page on the first attempt. Theme: **Mini World** — a miniature, isometric, blocky diorama aesthetic (2020s modern / indie-game feel). Output category: **Playful & Youth**. All user-facing copy must be written in **English** with a playful, energetic, youthful tone — no lorem ipsum.

**Required page sections (in order):** Sticky Header (logo, nav, theme toggle) → Hero → Features (3 cards) → How It Works (3 steps) → Testimonials → Pricing (3 tiers) → FAQ → Final CTA → Footer with secondary links.

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## 0. THEME SPECIFICATION — "MINI WORLD"

**0.1 Style Definition**
- **Name:** Mini World | **Type:** Miniature, Isometric, Blocky, Diorama
- **Keywords:** miniature, diorama, isometric, blocky characters, geometric shapes, tilt-shift, depth, toy-like, small world
- **Era:** 2020s Modern / Indie Game Aesthetic
- **Light/Dark:** Light-first (daylight diorama is the default presentation), but a complete dark mode ("Night World") is mandatory per Rule 1.3.

**0.2 Color Palette → CSS Variable Mapping**
- `--primary`: Grass Green `#7CB342` (main CTAs, positive actions)
- `--secondary`: Sky Blue `#42A5F5` (secondary CTAs, links, decorative sky)
- `--accent-sand`: Warm Sand `#FFCC80` (highlights, badges, paths)
- `--accent-brick`: Brick Red `#E57373` (danger actions, playful accents)
- `--accent-water`: Water Blue `#29B6F6` (decorative water tiles)
- `--accent-wood`: Wood Brown `#8D6E63` (footer band, structural accents)
- `--bg-primary`: a soft daylight sky tint (e.g., `#EDF5FD`) — **never** `#ffffff`; use `#fefefe` only where a near-white is unavoidable
- `--bg-secondary`: Soft White `#FAFAFA` (elevated cards, panels)
- `--text-primary`: dark warm ink (e.g., `#2B3A33`) paired with light backgrounds
- `--text-secondary`: Stone Grey darkened to meet WCAG AA (e.g., `#616161`); raw `#9E9E9E` is reserved for decorative elements only, never body text
- `--text-success`, `--text-error`, `--border-default`, `--border-error`, `--border-success` must all be defined.

**0.3 Visual Effects (Mandatory)**
- Tilt-shift blur on page edges (see Rule 2.2 for guardrails)
- Isometric grid layout for decorative scenes
- CSS 3D transforms for depth (`perspective: 800px`)
- Layered box-shadow "extrusion" for toy-like elevation
- Subtle parallax on scroll (disabled under `prefers-reduced-motion`)
- 200–300ms hover transitions on all interactive elements

**0.4 AI Visual Direction**
Design the page as a miniature world viewed from above. Use isometric perspective with geometric blocky shapes, tilt-shift blur at the edges, and layered depth via CSS transforms. Characters and decorative elements should read as tiny toy figures. Use warm, saturated colors. Grid-based layout with 3D-extruded card elements. Build all decorative diorama elements (trees, houses, clouds, figures, terrain) purely with CSS (divs, gradients, transforms) — no external images required for decoration.

**0.5 CSS Technical Direction**
- `transform: rotateX(45deg) rotateZ(45deg)` for isometric decorative tiles
- Multiple `box-shadow` layers for depth/extrusion
- `filter: blur()` on edges only for tilt-shift
- `perspective: 800px` on scene containers
- `border-radius: 4px–8px` everywhere (blocky look — never fully rounded)
- Layered gradients for terrain backgrounds

---

## 1. STRICT RULES & ARCHITECTURE

**1.1 CSS-First Architecture & Zero Inline CSS**
- All styling lives in `style.css`. **Forbidden:** `style="..."` attributes, inline `<style>` blocks, and presentational HTML attributes.
- All design properties, layout rules, and states are targeted via class or ID selectors only.
- HTML must remain clean, semantic, and styling-agnostic — reskinning the site must only require editing the CSS file.

**1.2 CSS Variables & Theme Tokens**
- Store every visual token in `:root` (and theme classes): the full palette mapping from 0.2, plus `--radius-sm: 4px`, `--radius-md: 6px`, `--radius-lg: 8px`, `--shadow-sm`, `--shadow-md`, `--shadow-extrude` (layered hard-offset toy shadow), `--spacing-gap`, `--transition-fast: 200ms`, `--transition-normal: 300ms`, `--ease-standard`, `--z-dropdown: 1000`, `--z-modal: 2000`, `--z-toast: 3000`, `--perspective-scene: 800px`, `--font-display`, `--font-base`.
- **Contrast pairing:** every light background token pairs with a dark text token and vice versa — enforced in light AND dark themes.
- Light mode background must not be pure white; use the sky-tinted `--bg-primary` per 0.2.

**1.3 Mandatory Dark Mode ("Night World")**
- Define a complete dark token set under both `@media (prefers-color-scheme: dark)` and a `.dark` class: deep night-sky background (e.g., `#17202E`), light text, brightened green/blue accents to preserve AA contrast, adjusted wood/stone tones.
- Background and text variables must switch seamlessly with **zero HTML restructuring**.
- **Persistence:** store the user's choice in `localStorage`, falling back to `prefers-color-scheme` on first visit.
- Provide a visible toggle button in the header using a Google Material Symbol (`light_mode` / `dark_mode`) with correct `aria-pressed` and `aria-label` state.

**1.4 Flexbox Layout & Mobile-First Alignment**
- Build all layout structures with Flexbox (`display: flex` / Tailwind flex utilities).
- Every flex container defaults to `align-items: center` (`items-center`) unless an explicitly justified exception exists.
- Mobile-first: rows convert to columns on small viewports; **no horizontal scrolling at any width ≥ 320px**. Isometric scene transforms must reduce/scale gracefully via media queries.

**1.5 Framework Default**
- Use Tailwind CSS (CDN) or clean custom CSS driven by `@layer` / `@apply`. All utilities must map back to CSS variables or generic reusable classes (`.btn`, `.card`, `.input-group`, `.scene-tile`).

**1.6 Typography & Icons (Google Fonts Mandatory)**
- **Text:** Load Google Fonts via `<link>` with `preconnect`: **Fredoka** for display/headings (`--font-display`) and **Nunito** for body (`--font-base`) — both fit the playful, toy-like category.
- **Icons:** Google Material Symbols (Rounded variant) exclusively. **Forbidden:** raw inline SVGs, local icon files, and emoji used as icons.

---

## 2. COMPONENT DESIGN SPECIFICATIONS

**2.1 Button Component**
Style all states via CSS classes; variants: `.btn-primary` (Grass Green), `.btn-secondary` (Sky Blue), `.btn-danger` (Brick Red — visually distinct in both themes), `.btn-ghost`.
- **Default:** `display: flex; align-items: center; justify-content: center; gap: 0.5rem;` minimum 44×44px touch target; Fredoka label; chunky bottom-edge extrusion shadow (toy-key feel).
- **Hover:** brightness/shadow shift with `cursor: pointer`, 200–300ms transition.
- **Focus:** distinct focus ring via `outline`/`box-shadow` using CSS variables — never remove focus indication without replacement.
- **Active/Pressed:** `transform: translateY(2px) scale(0.97)` with shadow shrink (pressed-toy feedback).
- **Loading:** `.is-loading` — disables interaction, prevents double-clicks, renders a CSS spinner or animated Material Symbol **without changing button dimensions**.
- **Disabled:** `opacity: 0.5`, grayscale, `cursor: not-allowed`.
- **Success/Error:** temporary feedback styles driven by `--text-success` / `--text-error` (e.g., pricing CTAs flip to a check icon + "You're in!" state).

**2.2 Card Component (Features, Testimonials, Pricing)**
- **Default:** flexible Flexbox layout, `--bg-secondary`, 2–3px `--border-default`, `--radius-md`, layered extrusion shadow (`--shadow-extrude`).
- **Hover:** `transform: translateY(-2px)` + shadow elevation, 200–300ms.
- **Focus-within:** card border highlights when a child link/button receives focus.
- **Loading (Skeleton):** shimmer animation via CSS gradient sweep, same dimensions — no layout jumps.
- **Empty State:** structured fallback with a Material Symbol and clear guidance text.

**2.3 Form & Input Requirements (Final CTA email capture)**
- **Structure:** flex `.input-group` wrapping a `<label>`, the input, and a dedicated error feedback container.
- **States:** Empty, Focused (outline ring), Filled, Valid (success border + check icon), Invalid (error border, red text, error icon, message announced in an `aria-live` region), Disabled, Read-only.

**2.4 Modal / Popup (if any dialog is triggered, e.g., plan details)**
- **States:** Opening, Open, Loading, Success/Error, Closing — all animated via CSS transitions.
- **UX:** centered flex overlay (`align-items: center`), backdrop, Material Symbol close button, keyboard focus trapping, `role="dialog"` + `aria-modal`, closable via `Esc` and overlay click.

**2.5 FAQ Accordion**
- Semantic `<details>`/`<summary>` (or button-based ARIA accordion with `aria-expanded`).
- Animated open/close via CSS; `expand_more` Material Symbol rotates with the state; fully keyboard operable; state never communicated by color alone.

**2.6 Tilt-Shift Overlay (Theme-Critical Guardrails)**
- Implement tilt-shift as a fixed, full-viewport overlay (or per-section pseudo-elements) using `filter: blur()` masked by gradients so **only the outer edge band softens**.
- The overlay must be `pointer-events: none` and sit below `--z-dropdown` / `--z-modal` / `--z-toast`.
- **Never** blur readable text, inputs, buttons, or any interactive element in the content zone.

---

## 3. PAGE SECTION REQUIREMENTS

**3.0 Header (sticky):** CSS-built blocky logo mark (mini cube or Material Symbol + Fredoka wordmark), nav links (Features, How It Works, Pricing, FAQ), theme toggle. Collapses to a stacked column layout on mobile. Respects `--z-dropdown`.

**3.1 Hero:** CSS-built isometric diorama scene — grass tiles, blocky trees, a tiny house, mini figures, clouds — pure CSS divs/gradients using `rotateX(45deg) rotateZ(45deg)` inside a `perspective: 800px` container. **Isometric transforms apply to decorative elements only — headlines, subcopy, and CTAs stay flat and legible.** Tilt-shift vignette on scene edges, layered terrain gradients, subtle parallax layers, playful badge chip, Fredoka headline, dual CTAs (primary "Start Building" + secondary "See How It Works").

**3.2 Features — 3 cards:** each with a Material Symbol inside a blocky colored tile (rotating green/blue/sand), title, playful description. Hover: card lift + icon bob (CSS keyframes, paused under reduced motion).

**3.3 How It Works — 3 steps:** numbered blocky badges (1, 2, 3) styled as extruded tiles; a dashed CSS "path" connecting them like a road through the mini world; each step has icon, title, short copy. On mobile, steps stack vertically with the path running vertically.

**3.4 Testimonials:** 3 cards; blocky CSS gradient avatars with initials (no external images); names + roles; star ratings via Material Symbol `star` paired with accessible text or `aria-label` (never color-only); playful quote copy.

**3.5 Pricing — 3 tiers:** extruded diorama cards; middle tier highlighted ("Most Popular" sand badge, accent border, elevated shadow); each tier: name, price, feature list with check Material Symbols, CTA button demonstrating the loading → success feedback states.

**3.6 FAQ:** 5–6 accordion items with real, playful English questions and answers.

**3.7 Final CTA:** full-width diorama panel (layered gradient terrain), bold Fredoka headline, email `.input-group` + primary button per Rule 2.3, success confirmation in `--text-success` announced via `aria-live`.

**3.8 Footer:** Wood Brown-tinted band (adjusted for dark mode); secondary links grouped (Product, Company, Support); social links as Material Symbols with `aria-label`s; copyright line; visible hover/focus states on all links.

---

## 4. CORE UX & MICRO-INTERACTION RULES

- **Responsive by default:** fluid sizing, responsive breakpoints, zero horizontal overflow.
- **Smooth animations:** CSS transitions on all state changes (`var(--transition-normal)`); under `prefers-reduced-motion`, disable parallax, bobbing/float animations, and blur shifts while keeping instant state changes.
- **Accessibility (a11y):** AA contrast in light AND dark modes; never rely on color alone to communicate state; semantic HTML5 elements; correct ARIA roles/labels on the theme toggle, accordion, and any modal; logical DOM/focus order; full keyboard operability (no mouse-only interactions); `aria-live` regions for form errors, loading states, and dynamic feedback.
- **Mandatory visual feedback:** every click, hover, and submission triggers a visible state change.
- **Destructive actions:** `.btn-danger` (Brick Red) must be visually distinct in both themes.

---

## 5. DELIVERABLE & OUTPUT FORMAT

- **File structure:** separate `index.html`, `style.css`, and `script.js`. No inline `<script>` blocks beyond a single deferred `<script src="script.js" defer>` entry point.
- **Naming convention:** one consistent convention — BEM (e.g., `.card`, `.card__title`, `.card--featured`) or a fixed utility set — never mix conventions.
- **No unrequested placeholders:** write real, playful English copy for every section; invent a fitting brand name where the product name is unspecified.
- All CSS variable names, class names, and file names in English/ASCII. Zero inline CSS, zero inline SVGs.