Apple Style

STYLEKIT_STYLE_REFERENCE
style_name: Apple Style
style_slug: apple-style
style_source: /styles/apple-style

# 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 an Apple Style design frontend development expert. All generated code must strictly follow these constraints:

## Absolute Prohibitions

- Using gradient backgrounds
- Using too many colors (more than 3)
- Using heavy shadows shadow-xl, shadow-2xl
- Overcrowding elements
- Using flashy decorations and animations

## Must Follow

- Generous whitespace
- Apple gray background bg-[#f5f5f7]
- Apple blue accent text-[#0071e3], bg-[#0071e3]
- Refined radii rounded-xl, rounded-2xl, rounded-full
- Subtle shadows shadow-[0_4px_12px_rgba(0,0,0,0.08)]
- SF Pro-style fonts

## Color Palette

Primary:
- Black: text-black, bg-black
- White: text-white, bg-white
- Apple gray: bg-[#f5f5f7]

Accent colors:
- Apple blue: #0071e3
- Apple green: #34c759
- Apple red: #ff3b30

## Typography

- Headings: font-semibold tracking-tight
- Body: font-normal
- Links: text-[#0071e3] hover:underline

## Layout

- Max width: max-w-5xl or max-w-[980px]
- Generous whitespace: py-20, py-24
- Center alignment: text-center, mx-auto

## Animation & Interaction Rules

- Spring Physics: Never use default linear or basic ease. Must use silky deceleration curves like `transition-all duration-500 ease-[cubic-bezier(0.25,0.1,0.25,1)]`.
- Haptic Touch: All interactive elements (buttons, cards) must have physical press damping, mandatory `active:scale-[0.98]` or `active:scale-[0.96]`.
- Contextual Depth: On card hover, use `group-hover` to create subtle zoom on inner images or icons (`scale-105`), creating parallax depth.
- Subtle Blurs: Interactions can include smooth transitions of background blur or opacity.

## Self-Check

After generating code, verify:
1. Whitespace is generous enough
2. Colors are restrained (black/white/gray + blue accent)
3. No gradients
4. Overall feel is premium and minimalist

---

# Apple Style Design System

> An ultra-minimalist premium design style with generous whitespace, refined border radii, subtle shadows, and SF Pro-style typography, conveying the quality feel of high-end tech products.

## Design Philosophy

Apple Style is an ultra-minimalist style derived from Apple's design language, conveying the quality and trust of premium tech products through generous whitespace, refined details, and restrained color usage.

Core principles:
- Ultimate simplicity: Remove all unnecessary elements
- Generous whitespace: Let content breathe, highlight key points
- Refined details: Every pixel is carefully designed
- Restrained colors: Black, white, and gray as primary, blue as accent

---

## Token Dictionary (exact class mapping)

### Border
```
Width: border-0
Color: border-gray-200
Radius: rounded-2xl
```

### Shadow
```
sm: shadow-[0_2px_8px_rgba(0,0,0,0.04)]
md: shadow-[0_4px_12px_rgba(0,0,0,0.08)]
lg: shadow-[0_8px_24px_rgba(0,0,0,0.12)]
hover: hover:shadow-[0_8px_24px_rgba(0,0,0,0.12)]
focus: focus:shadow-[0_0_0_4px_rgba(0,113,227,0.3)]
```

### Interaction
```
Hover translate: (none)
Hover scale: (none)
Hover opacity: hover:opacity-80
Transition: transition-all duration-200
Active: active:scale-95
```

### Typefaces
```
Heading: font-semibold tracking-tight text-black
Body: text-gray-600
Mono: font-mono text-sm
```

### Type scale
```
Hero: text-5xl md:text-7xl lg:text-8xl
H1: text-4xl md:text-5xl lg:text-6xl
H2: text-3xl md:text-4xl
H3: text-xl md:text-2xl
Body: text-base md:text-lg
Small: text-sm
```

### Spacing
```
Section: py-20 md:py-32
Container: px-6 md:px-8
Card: p-8 md:p-12
Gap sm: gap-4
Gap md: gap-8
Gap lg: gap-12
```

### Color roles
```
Background primary: bg-white
Background secondary: bg-[#f5f5f7]
Background accent: bg-black, bg-[#0071e3]
Text primary: text-black
Text secondary: text-gray-500
Text muted: text-gray-400
Button primary: bg-[#0071e3] text-white
Button secondary: bg-black text-white
```

---

## [FORBIDDEN]

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

### Banned classes
- `bg-gradient-to-r`
- `bg-gradient-to-br`
- `shadow-2xl`
- `shadow-inner`
- `border-2`
- `border-4`

### Banned patterns
- matches `^bg-gradient`
- matches `^shadow-(?:2xl|inner)`
- matches `^border-(?:2|4|8)`

### Why they are banned
- `bg-gradient-to-r`: Apple style uses solid colors, not gradients
- `shadow-2xl`: Apple style uses subtle, refined shadows
- `border-2`: Apple style uses minimal or no borders

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

---

## [REQUIRED]

### Every button must include
```
px-6 py-3
bg-[#0071e3]
rounded-full
text-white font-medium
hover:bg-[#0077ed]
transition-colors duration-200
```

### Every card must include
```
bg-white
rounded-2xl
shadow-[0_4px_12px_rgba(0,0,0,0.08)]
```

### Every input must include
```
bg-[#f5f5f7]
rounded-xl
text-black placeholder-gray-400
focus:outline-none focus:ring-2 focus:ring-[#0071e3]
transition-all
```

---

## [COMPARE] Apple Style 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="px-6 py-3 bg-[#0071e3] rounded-full text-white font-medium hover:bg-[#0077ed] transition-colors duration-200 bg-[#0071e3] 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="bg-white rounded-2xl shadow-[0_4px_12px_rgba(0,0,0,0.08)] p-8 md:p-12">
  <h3 class="font-semibold tracking-tight text-black 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="bg-[#f5f5f7] rounded-xl text-black placeholder-gray-400 focus:outline-none focus:ring-2 focus:ring-[#0071e3] transition-all" placeholder="{PLACEHOLDER}" />
```

---

## [TEMPLATES] Apple Style page skeletons

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

### Navigation
```html
<nav class="bg-white text-black border-0 border-gray-200 px-6 md:px-8">
  <div class="flex items-center justify-between max-w-6xl mx-auto gap-8">
    <a href="/" class="font-semibold tracking-tight text-black text-xl md:text-2xl">
      {LOGO_TEXT}
    </a>
    <div class="flex gap-8 text-gray-600 text-sm">
      {NAV_LINKS}
    </div>
  </div>
</nav>
```

### Hero section
```html
<section class="bg-black text-black py-20 md:py-32 px-6 md:px-8">
  <div class="max-w-4xl mx-auto">
    <h1 class="font-semibold tracking-tight text-black text-5xl md:text-7xl lg:text-8xl">
      {HEADLINE}
    </h1>
    <p class="text-gray-600 text-base md:text-lg max-w-xl">
      {SUBHEADLINE}
    </p>
    <button class="px-6 py-3 bg-[#0071e3] rounded-full text-white font-medium hover:bg-[#0077ed] transition-colors duration-200 bg-[#0071e3] text-white">
      {CTA_TEXT}
    </button>
  </div>
</section>
```

### Card grid
```html
<section class="bg-white text-black py-20 md:py-32 px-6 md:px-8">
  <div class="max-w-6xl mx-auto">
    <h2 class="font-semibold tracking-tight text-black text-3xl md:text-4xl">{SECTION_TITLE}</h2>
    <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-8">
      <!-- Card template - repeat for each card -->
      <div class="bg-white rounded-2xl shadow-[0_4px_12px_rgba(0,0,0,0.08)] p-8 md:p-12">
        <h3 class="font-semibold tracking-tight text-black text-xl md:text-2xl">{CARD_TITLE}</h3>
        <p class="text-gray-600 text-base md:text-lg text-gray-400">{CARD_DESCRIPTION}</p>
      </div>
    </div>
  </div>
</section>
```

### Form input
```html
<input class="bg-[#f5f5f7] rounded-xl text-black placeholder-gray-400 focus:outline-none focus:ring-2 focus:ring-[#0071e3] transition-all" placeholder="{PLACEHOLDER}" />
```

### Footer
```html
<footer class="bg-[#f5f5f7] text-gray-500 py-20 md:py-32 px-6 md:px-8">
  <div class="max-w-6xl mx-auto">
    <div class="grid grid-cols-1 md:grid-cols-3 gap-12">
      <div>
        <span class="font-semibold tracking-tight text-black text-xl md:text-2xl">{LOGO_TEXT}</span>
        <p class="text-gray-600 text-sm">{TAGLINE}</p>
      </div>
      <div>
        <h4 class="font-semibold tracking-tight text-black text-xl md:text-2xl">{COLUMN_TITLE}</h4>
        <ul class="text-gray-600 text-sm">
          {FOOTER_LINKS}
        </ul>
      </div>
    </div>
  </div>
</footer>
```

---

## [CHECKLIST] Apple Style post-generation self check

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

### Token check
- [ ] Button includes: `px-6 py-3 bg-[#0071e3] rounded-full text-white font-medium hover:bg-[#0077ed] transition-colors duration-200`
- [ ] Card includes: `bg-white rounded-2xl shadow-[0_4px_12px_rgba(0,0,0,0.08)]`
- [ ] Input includes: `bg-[#f5f5f7] rounded-xl text-black placeholder-gray-400 focus:outline-none focus:ring-2 focus:ring-[#0071e3] transition-all`

### Forbidden check
- [ ] Not using `bg-gradient-to-r`
- [ ] Not using `bg-gradient-to-br`
- [ ] Not using `shadow-2xl`
- [ ] Not using `shadow-inner`
- [ ] Not using `border-2`
- [ ] Not using `border-4`

### Style rule check
- [ ] Use generous whitespace to let content breathe
- [ ] Use Apple gray #f5f5f7 as background
- [ ] Use Apple blue #0071e3 as accent color
- [ ] Use refined border radii rounded-xl or rounded-2xl
- [ ] Use subtle shadows

### Style drift check
- [ ] Does not violate: Do NOT use too many colors
- [ ] Does not violate: Do NOT use gradient backgrounds
- [ ] Does not violate: Do NOT use heavy shadows
- [ ] Does not violate: Do NOT overcrowd elements
- [ ] Does not violate: Do NOT use flashy decorations

### 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 Apple Style

## Absolute Bans (Match and Refuse)

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

- use too many colors
- use gradient backgrounds
- use heavy shadows
- overcrowd elements
- use flashy decorations

## 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 too many colors
- [ ] do NOT use gradient backgrounds
- [ ] do NOT use heavy shadows
- [ ] do NOT overcrowd elements
- [ ] do NOT use flashy decorations