Mecha

STYLEKIT_STYLE_REFERENCE
style_name: Mecha
style_slug: mecha
style_source: /styles/mecha

# 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 Mecha design style frontend development expert. All generated code must strictly follow these constraints:

## Absolutely Forbidden

- Soft rounded corners (use rounded-none)
- Pastel or soft colors
- Glassmorphism or blur effects
- Handwritten or decorative fonts

## Must Follow

- Dark base colors: navy #1a2744, military green #4a5c3a
- Warning accents: yellow #fbbf24, red #ef4444
- Monospace fonts font-mono with uppercase tracking-widest
- No border radius rounded-none
- Hard-edge shadows shadow-[4px_4px_0px_color]
- Border-2 for panel edges

## Color Palette

Primary:
- Navy: #1a2744
- Military Green: #4a5c3a
- Warning Yellow: #fbbf24
- Danger Red: #ef4444

## Special Elements

- Tech grid backgrounds
- Warning stripe patterns
- Status indicators with square dots
- Technical annotations and unit numbers
- Panel borders with offset outlines

## Animation & Interaction Rules

- Hydraulic Rigidness: Interactions should use duration-100~150 + ease-linear mechanical hard-cuts, not soft spring easing.
- Armor Shifting: Hover can use clip-path corner changes and border thickness mutations to simulate armor plate engagement sliding.
- Hazard Flashing: Key controls need warning color pulses (red/yellow) and diagonal stripe hints on hover, reinforcing industrial alertness.
- Tactical Lock-on: Active uses crisp linear displacement with shadow fallback, like the lock-on feedback after pulling a heavy trigger.

---

# Mecha Design System

> Design style inspired by mecha anime like Gundam/EVA -- tech panels, warning signs, mechanical textures, military green and navy blue base with warning yellow and danger red, brimming with industrial power.

## Design Philosophy

Mecha is a design aesthetic originating from Japanese mecha anime (Gundam, EVA, etc.), blending military-industrial style with sci-fi panel interfaces.

Core principles:
- Armor panels: Panel design simulating mecha outer shell segments
- Warning system: Yellow warning and red danger signal system
- Military-industrial: Military green and navy blue industrial palette
- Technical annotations: Monospace font technical parameters and unit number labels

---

## Token Dictionary (exact class mapping)

### Border
```
Width: border-2
Color: border-[#4a5c3a]
Radius: rounded-none
```

### Shadow
```
sm: shadow-[2px_2px_0px_rgba(251,191,36,0.3)]
md: shadow-[4px_4px_0px_rgba(251,191,36,0.3)]
lg: shadow-[6px_6px_0px_rgba(251,191,36,0.4)]
hover: hover:shadow-[6px_6px_0px_rgba(251,191,36,0.5)]
focus: focus:shadow-[0_0_8px_rgba(251,191,36,0.4)]
```

### Interaction
```
Hover translate: hover:translate-x-[2px] hover:translate-y-[2px]
Hover scale: (none)
Hover opacity: (none)
Transition: transition-all duration-200 ease-in-out
Active: active:translate-x-[4px] active:translate-y-[4px] active:shadow-none
```

### Typefaces
```
Heading: font-mono font-bold uppercase tracking-widest
Body: font-mono
Mono: font-mono
```

### Type scale
```
Hero: text-4xl md:text-6xl lg:text-8xl
H1: text-3xl md:text-5xl
H2: text-2xl md:text-4xl
H3: text-xl md:text-2xl
Body: text-sm md:text-base
Small: text-xs md:text-sm
```

### Spacing
```
Section: py-12 md:py-20 lg:py-28
Container: px-4 md:px-8 lg:px-12
Card: p-5 md:p-8
Gap sm: gap-3 md:gap-4
Gap md: gap-4 md:gap-6
Gap lg: gap-6 md:gap-10
```

### Color roles
```
Background primary: bg-[#1a2744]
Background secondary: bg-[#4a5c3a]
Background accent: bg-[#fbbf24], bg-[#ef4444]
Text primary: text-[#fbbf24]
Text secondary: text-[#4a5c3a]
Text muted: text-[#4a5c3a]/70
Button primary: bg-[#fbbf24] text-[#1a2744] border-2 border-[#1a2744]
Button secondary: bg-[#4a5c3a] text-[#fbbf24] border-2 border-[#fbbf24]/50
```

---

## [FORBIDDEN]

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

### Banned classes
- `rounded-lg`
- `rounded-xl`
- `rounded-2xl`
- `rounded-full`
- `bg-white`
- `bg-[#faf6f0]`
- `bg-[#fffbf0]`
- `font-serif`
- `text-[#ff00ff]`
- `text-[#00ffff]`
- `shadow-md`
- `shadow-lg`
- `backdrop-blur`
- `bg-pink-`
- `bg-rose-`
- `text-pink-`

### Banned patterns
- matches `^rounded-(?:lg|xl|2xl|full)$`
- matches `^bg-(?:white|pink-|rose-)`
- matches `^font-serif$`
- matches `^shadow-(?:md|lg|xl)$`
- matches `^backdrop-blur`

### Why they are banned
- `rounded-lg`: Mecha uses sharp angular shapes (rounded-none) for an industrial feel
- `bg-white`: Mecha uses dark backgrounds (navy, green) for a military aesthetic
- `font-serif`: Mecha uses monospace fonts for a technical/military look
- `shadow-md`: Mecha uses hard-edge offset shadows, not soft ones
- `backdrop-blur`: Mecha style is opaque and solid, no transparency effects

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

---

## [REQUIRED]

### Every button must include
```
rounded-none
font-mono font-bold uppercase tracking-widest
border-2
transition-all duration-200 ease-in-out
```

### Every card must include
```
rounded-none
bg-[#1a2744]
border-2 border-[#4a5c3a]
shadow-[4px_4px_0px_rgba(251,191,36,0.3)]
```

### Every input must include
```
rounded-none
border-2 border-[#4a5c3a]
bg-[#1a2744]/80
text-[#fbbf24]
font-mono
focus:outline-none
```

---

## [COMPARE] Mecha 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-none font-mono font-bold uppercase tracking-widest border-2 transition-all duration-200 ease-in-out bg-[#fbbf24] text-[#1a2744] border-2 border-[#1a2744]">
  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-none bg-[#1a2744] border-2 border-[#4a5c3a] shadow-[4px_4px_0px_rgba(251,191,36,0.3)] p-5 md:p-8">
  <h3 class="font-mono font-bold uppercase tracking-widest 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-none border-2 border-[#4a5c3a] bg-[#1a2744]/80 text-[#fbbf24] font-mono focus:outline-none" placeholder="{PLACEHOLDER}" />
```

---

## [TEMPLATES] Mecha page skeletons

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

### Navigation
```html
<nav class="bg-[#1a2744] text-[#fbbf24] border-2 border-[#4a5c3a] 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-mono font-bold uppercase tracking-widest text-xl md:text-2xl">
      {LOGO_TEXT}
    </a>
    <div class="flex gap-4 md:gap-6 font-mono text-xs md:text-sm">
      {NAV_LINKS}
    </div>
  </div>
</nav>
```

### Hero section
```html
<section class="bg-[#fbbf24] text-[#fbbf24] py-12 md:py-20 lg:py-28 px-4 md:px-8 lg:px-12">
  <div class="max-w-4xl mx-auto">
    <h1 class="font-mono font-bold uppercase tracking-widest text-4xl md:text-6xl lg:text-8xl">
      {HEADLINE}
    </h1>
    <p class="font-mono text-sm md:text-base max-w-xl">
      {SUBHEADLINE}
    </p>
    <button class="rounded-none font-mono font-bold uppercase tracking-widest border-2 transition-all duration-200 ease-in-out bg-[#fbbf24] text-[#1a2744] border-2 border-[#1a2744]">
      {CTA_TEXT}
    </button>
  </div>
</section>
```

### Card grid
```html
<section class="bg-[#1a2744] text-[#fbbf24] py-12 md:py-20 lg:py-28 px-4 md:px-8 lg:px-12">
  <div class="max-w-6xl mx-auto">
    <h2 class="font-mono font-bold uppercase tracking-widest text-2xl md:text-4xl">{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-none bg-[#1a2744] border-2 border-[#4a5c3a] shadow-[4px_4px_0px_rgba(251,191,36,0.3)] p-5 md:p-8">
        <h3 class="font-mono font-bold uppercase tracking-widest text-xl md:text-2xl">{CARD_TITLE}</h3>
        <p class="font-mono text-sm md:text-base text-[#4a5c3a]/70">{CARD_DESCRIPTION}</p>
      </div>
    </div>
  </div>
</section>
```

### Form input
```html
<input class="rounded-none border-2 border-[#4a5c3a] bg-[#1a2744]/80 text-[#fbbf24] font-mono focus:outline-none" placeholder="{PLACEHOLDER}" />
```

### Footer
```html
<footer class="bg-[#4a5c3a] text-[#4a5c3a] py-12 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-10">
      <div>
        <span class="font-mono font-bold uppercase tracking-widest text-xl md:text-2xl">{LOGO_TEXT}</span>
        <p class="font-mono text-xs md:text-sm">{TAGLINE}</p>
      </div>
      <div>
        <h4 class="font-mono font-bold uppercase tracking-widest text-xl md:text-2xl">{COLUMN_TITLE}</h4>
        <ul class="font-mono text-xs md:text-sm">
          {FOOTER_LINKS}
        </ul>
      </div>
    </div>
  </div>
</footer>
```

---

## [CHECKLIST] Mecha post-generation self check

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

### Token check
- [ ] Button includes: `rounded-none font-mono font-bold uppercase tracking-widest border-2 transition-all duration-200 ease-in-out`
- [ ] Card includes: `rounded-none bg-[#1a2744] border-2 border-[#4a5c3a] shadow-[4px_4px_0px_rgba(251,191,36,0.3)]`
- [ ] Input includes: `rounded-none border-2 border-[#4a5c3a] bg-[#1a2744]/80 text-[#fbbf24] font-mono focus:outline-none`

### Forbidden check
- [ ] Not using `rounded-lg`
- [ ] Not using `rounded-xl`
- [ ] Not using `rounded-2xl`
- [ ] Not using `rounded-full`
- [ ] Not using `bg-white`
- [ ] Not using `bg-[#faf6f0]`
- [ ] Not using `bg-[#fffbf0]`
- [ ] Not using `font-serif`

### Style rule check
- [ ] Use military green and navy blue as base colors
- [ ] Add warning yellow and danger red accent colors
- [ ] Use monospace fonts and uppercase letters
- [ ] Design sharp no-rounded-corner panel elements
- [ ] Add technical annotations and unit number decorations

### Style drift check
- [ ] Does not violate: Do not use soft rounded corner design
- [ ] Does not violate: Do not use soft pink or light tones
- [ ] Does not violate: Do not use flashy gradients or frosted glass effects
- [ ] Does not violate: Do not use handwritten or decorative script fonts

### 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 Mecha

## Absolute Bans (Match and Refuse)

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

- use soft rounded corner design
- use soft pink or light tones
- use flashy gradients or frosted glass effects
- use handwritten or decorative script fonts

## 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 soft rounded corner design
- [ ] do not use soft pink or light tones
- [ ] do not use flashy gradients or frosted glass effects
- [ ] do not use handwritten or decorative script fonts