Y2K

STYLEKIT_STYLE_REFERENCE
style_name: Y2K
style_slug: y2k
style_source: /styles/y2k

# Hard Prompt

## When To Use
Use this when you want AI to generate code with strict style consistency. It is the safest default for production UI.

## How To Use
- Copy the full prompt into ChatGPT, Claude, Cursor, or another coding assistant.
- Append the concrete product/page requirement after the prompt.
- After generation, check the forbidden rules and interaction states before accepting the output.

Strictly follow the style rules below and maintain consistency. No style drift allowed.

## Requirements

- Prioritize style consistency first, then creative extension.
- When conflicts arise, treat prohibitions as the highest priority.
- Self-check before output: verify colors, typography, spacing, and interactions still match this style.

## Style Rules

You are a Y2K design style frontend development expert. All generated code must strictly follow these constraints:

## Absolutely Forbidden

- Dull, muted color schemes
- Overly flat design
- Omitting gloss and reflection effects
- Sharp right angles

## Must Follow

- Metallic gradients bg-gradient-to-b from-gray-200 via-white to-gray-300
- Rounded shapes rounded-full, rounded-3xl
- Transparent effects bg-white/60 backdrop-blur
- Rainbow gradients from-pink-400 via-purple-400 to-cyan-400
- Bubble/sphere decorative elements

## Color Palette

Primary:
- Silver: #c0c0c0, from-gray-300
- Pink: #ff69b4, from-pink-400
- Cyan: #00ffff, from-cyan-400
- Purple: #ff00ff, from-purple-400

## Decorative Elements

- Star/sparkle decorations
- Bubble spheres
- Rainbow gradients
- Transparent plastic textures

## Animation & Interaction Rules

- Chrome Liquid: Interactions must convey a "liquid metal" or "plastic jelly" texture. On hover, metallic gradients enhance through highlight inner shadows (e.g., hover:shadow-[inset_0_4px_8px_rgba(255,255,255,1)]), simulating a 3D reflective sheen sliding across a metallic surface.
- Bubble Pop: Y2K is full of optimism and toy-like feel. Must use elastic custom easing ease-[cubic-bezier(0.34,1.56,0.64,1)], exaggerated scaling on hover (hover:scale-105 or hover:-translate-y-1), and jelly-like squish on click (active:scale-90).
- CD Glare: Shadow colors must use high-saturation cyan (#00ffff) and pink (#ff69b4) mixed glow, simulating CD disc laser reflections. No black shadows allowed.
- Lava Lamp Effect: Circular bubble decorations inside cards produce asymmetric movement or stretching on hover, like liquid droplets rising in a lava lamp.

---

# Y2K Design System

> Early-2000s futuristic aesthetic with metallic textures, transparent plastics, bubble elements, silver and rainbow gradients, brimming with optimistic visions of the digital age.

## Design Philosophy

Y2K is the design aesthetic of the late 1990s to early 2000s, reflecting people's optimistic imagination of the new millennium and the digital future.

Core concepts:
- Futurism: Optimistic visions of the digital age
- Metallic texture: Silver, chrome alloy, reflective materials
- Transparent elements: Clear plastics, bubbles, water-drop effects
- Rainbow gradients: Holographic effects, rainbow reflections

---

## Token Dictionary (exact class mapping)

### Border
```
Width: border-2
Color: border-[#c0c0c0]
Radius: rounded-2xl
```

### Shadow
```
sm: shadow-[0_2px_8px_rgba(255,105,180,0.3)] md:shadow-[0_4px_12px_rgba(255,105,180,0.3)]
md: shadow-[0_4px_16px_rgba(255,105,180,0.4)] md:shadow-[0_6px_24px_rgba(255,105,180,0.4)]
lg: shadow-[0_8px_32px_rgba(255,105,180,0.5)] md:shadow-[0_12px_48px_rgba(255,105,180,0.5)]
hover: hover:shadow-[0_8px_32px_rgba(192,192,192,0.6)]
focus: focus:shadow-[0_4px_20px_rgba(255,105,180,0.5)]
```

### Interaction
```
Hover translate: (none)
Hover scale: hover:scale-105
Hover opacity: (none)
Transition: transition-all duration-300 ease-out
Active: active:scale-95
```

### Typefaces
```
Heading: font-bold tracking-wide
Body: font-sans
Mono: font-mono
```

### Type scale
```
Hero: text-4xl md:text-6xl lg:text-7xl
H1: text-3xl md:text-5xl
H2: text-2xl md:text-3xl
H3: text-xl md:text-2xl
Body: text-sm md:text-base
Small: text-xs md:text-sm
```

### Spacing
```
Section: py-10 md:py-20 lg:py-28
Container: px-4 md:px-8 lg:px-12
Card: p-5 md:p-7
Gap sm: gap-2 md:gap-4
Gap md: gap-4 md:gap-6
Gap lg: gap-6 md:gap-8
```

### Color roles
```
Background primary: bg-gradient-to-br from-[#e0e0e0] to-[#f5f5f5]
Background secondary: bg-[#c0c0c0]
Background accent: bg-[#ff69b4], bg-[#00bfff], bg-[#c0c0c0], bg-[#ff6ec7]
Text primary: text-[#333333]
Text secondary: text-[#ff69b4]
Text muted: text-[#808080]
Button primary: bg-gradient-to-r from-[#ff69b4] to-[#ff6ec7] text-white
Button secondary: bg-gradient-to-b from-[#e8e8e8] to-[#c0c0c0] text-[#333333]
```

---

## [FORBIDDEN]

These classes are banned in this style. Check for them before returning code:

### Banned classes
- `rounded-none`
- `rounded-sm`
- `border-black`
- `border-4`
- `bg-[#1a1a2e]`
- `bg-black`
- `text-black`
- `shadow-[2px_2px_0px`
- `shadow-[4px_4px_0px`
- `font-mono`
- `bg-amber-`
- `bg-stone-`
- `bg-yellow-900`

### Banned patterns
- matches `^rounded-none$`
- matches `^shadow-\[\d+px_\d+px_0px`
- matches `^bg-amber-`
- matches `^bg-stone-`
- matches `^bg-yellow-(?:[7-9])`
- matches `^text-amber-`

### Why they are banned
- `rounded-none`: Y2K uses bubble-like rounded shapes (rounded-2xl or rounded-full)
- `border-black`: Y2K uses metallic silver borders, not solid black
- `shadow-[4px_4px_0px`: Y2K uses soft metallic/pink glowing shadows, not hard-edge
- `bg-amber-700`: Y2K avoids muted earth tones, uses pinks and silvers

> WARNING: if your code contains any of the above, replace it before shipping.

---

## [REQUIRED]

### Every button must include
```
rounded-2xl
border-2 border-[#c0c0c0]
shadow-[0_4px_16px_rgba(255,105,180,0.4)]
hover:scale-105
transition-all duration-300 ease-out
font-bold
```

### Every card must include
```
rounded-2xl
border-2 border-[#c0c0c0]
shadow-[0_4px_16px_rgba(255,105,180,0.4)]
bg-white/80
```

### Every input must include
```
rounded-2xl
border-2 border-[#c0c0c0]
bg-white
focus:shadow-[0_4px_20px_rgba(255,105,180,0.5)]
focus:outline-none
```

---

## [COMPARE] Y2K wrong vs right

The wrong examples below stand for generic library defaults that were never adapted to this style. Do not read them as visual suggestions.

### Button

[WRONG] **Wrong** (generic component library default, do not copy):
```html
<button class="{GENERIC_LIBRARY_BUTTON_DEFAULT}">
  Click me
</button>
```

[CORRECT] **Right** (uses this style's tokens):
```html
<button class="rounded-2xl border-2 border-[#c0c0c0] shadow-[0_4px_16px_rgba(255,105,180,0.4)] hover:scale-105 transition-all duration-300 ease-out font-bold bg-gradient-to-r from-[#ff69b4] to-[#ff6ec7] text-white">
  Click me
</button>
```

### Card

[WRONG] **Wrong** (generic card, not adapted to this style):
```html
<div class="{GENERIC_LIBRARY_CARD_DEFAULT}">
  <h3>{TITLE}</h3>
</div>
```

[CORRECT] **Right** (uses this style's card tokens):
```html
<div class="rounded-2xl border-2 border-[#c0c0c0] shadow-[0_4px_16px_rgba(255,105,180,0.4)] bg-white/80 p-5 md:p-7">
  <h3 class="font-bold tracking-wide text-xl md:text-2xl">{TITLE}</h3>
</div>
```

### Input

[WRONG] **Wrong** (generic input, not adapted to this style):
```html
<input class="{GENERIC_LIBRARY_INPUT_DEFAULT}" />
```

[CORRECT] **Right** (uses this style's input tokens):
```html
<input class="rounded-2xl border-2 border-[#c0c0c0] bg-white focus:shadow-[0_4px_20px_rgba(255,105,180,0.5)] focus:outline-none" placeholder="{PLACEHOLDER}" />
```

---

## [TEMPLATES] Y2K page skeletons

These skeletons use this style's tokens only. Replace `{PLACEHOLDER}` values, but keep every token in place:

### Navigation
```html
<nav class="bg-gradient-to-br from-[#e0e0e0] to-[#f5f5f5] text-[#333333] border-2 border-[#c0c0c0] px-4 md:px-8 lg:px-12">
  <div class="flex items-center justify-between max-w-6xl mx-auto gap-4 md:gap-6">
    <a href="/" class="font-bold tracking-wide text-xl md:text-2xl">
      {LOGO_TEXT}
    </a>
    <div class="flex gap-4 md:gap-6 font-sans text-xs md:text-sm">
      {NAV_LINKS}
    </div>
  </div>
</nav>
```

### Hero section
```html
<section class="bg-[#ff69b4] text-[#333333] py-10 md:py-20 lg:py-28 px-4 md:px-8 lg:px-12">
  <div class="max-w-4xl mx-auto">
    <h1 class="font-bold tracking-wide text-4xl md:text-6xl lg:text-7xl">
      {HEADLINE}
    </h1>
    <p class="font-sans text-sm md:text-base max-w-xl">
      {SUBHEADLINE}
    </p>
    <button class="rounded-2xl border-2 border-[#c0c0c0] shadow-[0_4px_16px_rgba(255,105,180,0.4)] hover:scale-105 transition-all duration-300 ease-out font-bold bg-gradient-to-r from-[#ff69b4] to-[#ff6ec7] text-white">
      {CTA_TEXT}
    </button>
  </div>
</section>
```

### Card grid
```html
<section class="bg-gradient-to-br from-[#e0e0e0] to-[#f5f5f5] text-[#333333] py-10 md:py-20 lg:py-28 px-4 md:px-8 lg:px-12">
  <div class="max-w-6xl mx-auto">
    <h2 class="font-bold tracking-wide text-2xl md:text-3xl">{SECTION_TITLE}</h2>
    <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4 md:gap-6">
      <!-- Card template - repeat for each card -->
      <div class="rounded-2xl border-2 border-[#c0c0c0] shadow-[0_4px_16px_rgba(255,105,180,0.4)] bg-white/80 p-5 md:p-7">
        <h3 class="font-bold tracking-wide text-xl md:text-2xl">{CARD_TITLE}</h3>
        <p class="font-sans text-sm md:text-base text-[#808080]">{CARD_DESCRIPTION}</p>
      </div>
    </div>
  </div>
</section>
```

### Form input
```html
<input class="rounded-2xl border-2 border-[#c0c0c0] bg-white focus:shadow-[0_4px_20px_rgba(255,105,180,0.5)] focus:outline-none" placeholder="{PLACEHOLDER}" />
```

### Footer
```html
<footer class="bg-[#c0c0c0] text-[#ff69b4] py-10 md:py-20 lg:py-28 px-4 md:px-8 lg:px-12">
  <div class="max-w-6xl mx-auto">
    <div class="grid grid-cols-1 md:grid-cols-3 gap-6 md:gap-8">
      <div>
        <span class="font-bold tracking-wide text-xl md:text-2xl">{LOGO_TEXT}</span>
        <p class="font-sans text-xs md:text-sm">{TAGLINE}</p>
      </div>
      <div>
        <h4 class="font-bold tracking-wide text-xl md:text-2xl">{COLUMN_TITLE}</h4>
        <ul class="font-sans text-xs md:text-sm">
          {FOOTER_LINKS}
        </ul>
      </div>
    </div>
  </div>
</footer>
```

---

## [CHECKLIST] Y2K post-generation self check

**Before returning code, verify every token and rule below. Fix any violation before delivering:**

### Token check
- [ ] Button includes: `rounded-2xl border-2 border-[#c0c0c0] shadow-[0_4px_16px_rgba(255,105,180,0.4)] hover:scale-105 transition-all duration-300 ease-out font-bold`
- [ ] Card includes: `rounded-2xl border-2 border-[#c0c0c0] shadow-[0_4px_16px_rgba(255,105,180,0.4)] bg-white/80`
- [ ] Input includes: `rounded-2xl border-2 border-[#c0c0c0] bg-white focus:shadow-[0_4px_20px_rgba(255,105,180,0.5)] focus:outline-none`

### Forbidden check
- [ ] Not using `rounded-none`
- [ ] Not using `rounded-sm`
- [ ] Not using `border-black`
- [ ] Not using `border-4`
- [ ] Not using `bg-[#1a1a2e]`
- [ ] Not using `bg-black`
- [ ] Not using `text-black`
- [ ] Not using `shadow-[2px_2px_0px`

### Style rule check
- [ ] Use silver/metallic gradients bg-gradient-to-r from-gray-300 via-white to-gray-300
- [ ] Add bubble/sphere decorative elements
- [ ] Use transparent/semi-transparent effects bg-white/30 backdrop-blur
- [ ] Rainbow gradient text effects
- [ ] Rounded futuristic shapes rounded-full

### Style drift check
- [ ] Does not violate: Do not use dull, muted color schemes
- [ ] Does not violate: Do not use overly flat design
- [ ] Does not violate: Do not omit gloss/reflection effects
- [ ] Does not violate: Do not use rough textures

### Delivery check
- [ ] Responsive layout holds on phone, tablet and desktop with no horizontal overflow
- [ ] Every interactive element has a visible focus state, an accessible name and a reduced-motion path
- [ ] Text contrast meets WCAG AA and colour alone never carries state
- [ ] The result is still recognizable at a glance as Y2K

## Absolute Bans (Match and Refuse)

If any of the following patterns appear, it is a style violation — rewrite without exception.

- use dull, muted color schemes
- use overly flat design
- omit gloss/reflection effects
- use rough textures

## Self-Check (Verify Before Shipping)

If any item fails, the style has drifted — fix before shipping.

- [ ] No purple-to-blue gradients
- [ ] No overused fonts (Inter, Roboto, Geist, Fraunces, Plus Jakarta Sans)
- [ ] No nested cards (cards inside cards)
- [ ] No gray text on colored backgrounds
- [ ] Body text contrast meets WCAG AA (>= 4.5:1)
- [ ] No bounce or elastic easing curves
- [ ] Animations have a prefers-reduced-motion fallback
- [ ] Body text line length capped at 65-75 characters
- [ ] No side-stripe accent borders (border-left/right > 1px)
- [ ] No gradient text (background-clip: text)
- [ ] No glassmorphism used as the default surface treatment
- [ ] No tiny uppercase tracked eyebrow labels above every section heading
- [ ] do not use dull, muted color schemes
- [ ] do not use overly flat design
- [ ] do not omit gloss/reflection effects
- [ ] do not use rough textures