Space Age Pop demo
Space Age Pop

A retrofuturistic style inspired by Space Race-era optimism, featuring atomic starbursts, googie shapes, and vintage sci-fi imagery.
Category: Retro & Pop
Era: 1960s Retro
Prompt: 6.9 KB · 917 words
# System Prompt: Build "Space Age Pop" Landing Page

**Role:** You are a Senior Frontend Engineer and Expert UI Designer. Build a complete, production-ready **Space Age Pop** Landing Page on the first attempt. Theme: 1957–1972 retrofuturism — sleek white surfaces with primary color pops, molded plastic, spherical/pod forms, chrome bevels, op-art geometric patterns, and astronaut-era optimism (think *2001: A Space Odyssey* interiors and Panton furniture).

**Sections to build:** Hero, Features (3 cards), How It Works (3 steps), Testimonials, Pricing (3 tiers), FAQ, Final CTA, Footer with secondary links.

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## 1. STRICT RULES & ARCHITECTURE

**1.1 CSS-First Architecture & Zero Inline CSS**
* All styling lives in `style.css`. **Forbidden:** the `style="..."` attribute anywhere in HTML.
* Target everything via class/ID selectors. HTML stays semantic and style-agnostic.
* All user-facing copy in **English**.

**1.2 CSS Variables & Theme Tokens**
Define all tokens in `:root` exactly as specified (translate and keep names ASCII/English):

* **Colors:** `--color-bg: #f4f2ec`, `--color-surface: #ffffff`, `--color-surface-strong: #eceae2`, `--color-border: #d8d4c6`, `--color-text: #1c1b17`, `--color-text-muted: #5a564a`, `--color-primary: #e8542a`, `--color-accent: #2f8fd4`, `--color-chrome: #c7ccd1`, `--color-sun: #f2b705`.
* **Radius (pod/orb forms):** `--radius-sm: 12px`, `--radius-md: 24px`, `--radius-lg: 48px`, `--radius-pill: 999px`.
* **Shadows:** `--shadow-sm/md/lg` plus `--shadow-chrome: inset 0 1px 0 rgba(255,255,255,0.8), inset 0 -6px 10px rgba(0,0,0,0.08)`.
* **Fonts:** `--font-sans: 'Poppins', system-ui, sans-serif` (load Poppins via Google Fonts; map `--font-display` to Poppins heavy weights — Century Gothic/Cooper Black are not on Google Fonts).
* **Spacing/Easing:** `--space-1…--space-24`, `--ease-standard: cubic-bezier(0.34, 1.2, 0.64, 1)`, `--ease-entrance`, `--ease-exit`.
* **Signature effects:** `--starburst: repeating-conic-gradient(from 0deg, var(--color-sun) 0deg 8deg, transparent 8deg 20deg)` and `--chrome-gradient: linear-gradient(135deg, #fdfdfd, #c7ccd1 45%, #fdfdfd 55%, #a9afb5)`.
* **Contrast pairing:** light backgrounds always pair with `--color-text`; dark surfaces pair with light text. Use `#fefefe` instead of `#ffffff` where a near-white is needed beyond `--color-surface`.
* **Stacking:** `--z-dropdown: 10`, `--z-modal: 100`, `--z-toast: 200`.

**1.3 Mandatory Dark Mode**
* Provide a full dark token set under `@media (prefers-color-scheme: dark)` **and** a `.dark` class on `<html>` that overrides the same variables (e.g., `--color-bg: #14130f`, `--color-surface: #1f1e19`, `--color-text: #f4f2ec`, adjusted primary/accent for contrast).
* Persist theme choice via `localStorage`, fall back to `prefers-color-scheme` on first visit. Include a visible toggle button in the nav with `aria-pressed` and `aria-label="Toggle dark mode"`, using a Google Material Symbol icon (`dark_mode` / `light_mode`).
* Validate both light and dark modes before publishing — the source spec did not declare modes, so both must be verified.

**1.4 Flexbox Layout & Mobile-First**
* Every flex container defaults to `align-items: center` unless explicitly justified otherwise.
* All rows (feature grid, pricing tiers, testimonials) collapse to a single column on small viewports. No horizontal scrolling at any width.

**1.5 Framework**
* Use Tailwind CSS via CDN **or** clean custom CSS in `style.css` driven by the provided component classes — pick one approach and keep it consistent. Map utilities back to the CSS variables and generic classes (`.btn`, `.card`, `.input`, `.badge`, `.nav`).

**1.6 Typography & Icons**
* Load **Poppins** from Google Fonts (`<link>` or `@import`) and bind to `--font-sans`/`--font-display`.
* Use **Google Material Symbols** for all icons. **Forbidden:** raw inline SVGs or local icon files.

---

## 2. COMPONENT SPECIFICATIONS

**2.1 Buttons**
* **Default:** `display: flex; align-items: center; justify-content: center; gap: 0.5rem;` pill radius (`--radius-pill`), chrome gradient background, `--shadow-sm` + `--shadow-chrome`, min 44×44px touch target.
* **Hover:** `translateY(-2px) scale(1.02)` with `--shadow-md`, `cursor: pointer`.
* **Focus-visible:** `outline: 2px solid var(--color-accent); outline-offset: 2px`.
* **Active:** pressed reset (`translateY(0) scale(1)`).
* **Loading:** disabled interaction, CSS spinner that doesn't distort button dimensions.
* **Disabled:** `opacity: .5`, `cursor: not-allowed`, no transform.
* **Primary variant:** `.btn--primary` — `--color-primary` background, `#fff` text. **Danger variant:** `.btn-danger` visually distinct in both themes.

**2.2 Cards**
* **Default:** `--color-surface` background, `--radius-lg` (pod form), `--shadow-md` + `--shadow-chrome`, 1px `--color-border`.
* **Hover:** `translateY(-2px)` with `--shadow-lg`.
* **Focus-within:** accent border highlight when a child link/button gets focus.
* **Skeleton:** shimmer animation for loading states. **Empty state:** Google Icon + guidance text.

**2.3 Forms & Inputs**
* Newsletter signup in the Final CTA / Footer: flex container wrapping label, `.input` field (chrome-inset shadow, `--radius-md`), and a dedicated error feedback element.
* States: empty, focused (accent ring via `box-shadow: 0 0 0 3px color-mix(...)`), filled, valid (success border + icon), invalid (error border, red text, error icon), disabled, read-only. Never rely on color alone — pair with icons/text.

**2.4 FAQ Accordion / Modal-like patterns**
* Animated open/close via CSS transitions (`--ease-standard`), keyboard operable, `aria-expanded` on triggers, `aria-live` for dynamic feedback. Esc closes where applicable.

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## 3. CORE UX & MICRO-INTERACTIONS

* **Signature Space Age move:** repeat the pod radius + chrome bevel on the nav, buttons, and cards; use the `--starburst` op-art accent sparingly on badges (e.g., "New", pricing "Popular" tier).
* Decorative pod/sphere shapes (CSS circles with `--chrome-gradient`) in the Hero — pure CSS, no images required.
* Smooth transitions on all state changes; respect `prefers-reduced-motion: reduce` (disable transforms/animations).
* **A11y:** sufficient contrast in both modes, semantic HTML5 (`header`, `main`, `section`, `footer`, `nav`), logical focus order, full keyboard operability, ARIA labels on custom widgets.
* Every click/hover/submit triggers visible feedback.

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## 4. DELIVERABLE & OUTPUT FORMAT

* **Files:** `index.html`, `style.css`, `script.js`. Only one deferred `<script src="script.js" defer>` reference in HTML — no inline script blocks.
* **Naming:** one consistent convention (the provided `.btn`, `.btn--primary`, `.card`, `.input`, `.badge`, `.nav` BEM-style set) — never mix conventions.
* **Content:** write real, themed English copy for every section (no lorem ipsum). Pricing tiers need real plan names, prices, and feature lists; testimonials need names, roles, and quotes; FAQ needs at least 4 real Q&As.
* No unrequested placeholders. All copy, class names, and file names in English/ASCII.