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# CardStack Section Pattern
This document covers the CardStack pattern used in Feature, Product, Pricing, Testimonial, Team, Blog, and Metrics section components.
## Required Type Imports
```tsx
// Centralized type definitions
import type { TextboxLayout, InvertedBackground } from "@/providers/themeProvider/config/constants";
import type { ButtonConfig, GridVariant, CardAnimationType, ContainerStyle, TitleSegment } from "@/components/cardStack/types";
```
**Key Types:**
- `TextboxLayout` - Layout options for section headers ("default" | "split" | "split-actions" | "split-description" | "inline-image")
- `InvertedBackground` - Background inversion options ("noInvert" | "invertDefault" | "invertCard")
- `TitleSegment` - Type for inline image segments ({ type: "text" | "image", content/src, alt? })
- `ButtonConfig` - Button configuration interface
- `GridVariant` - Grid layout variants
- `CardAnimationType` - Card animation types
- `ContainerStyle` - Container styling options
## Overview
CardStack is an intelligent layout component that automatically switches between grid, carousel, and timeline layouts based on item count and configuration.
**Mode Selection (Automatic):**
- **1-4 items**: Grid mode (displays as bento grid)
- **5+ items**: Carousel mode (auto-scrolling or button-controlled)
- **3-6 items with timeline variant**: Timeline layout (or carousel if 7+)
## Grid Variants
There are 9 bento grid layouts plus uniform layouts:
### Uniform Layouts
- `uniform-all-items-equal` - All items same size (default)
- `uniform-2-items` - Two equal columns
- `uniform-3-items` - Three equal columns
- `uniform-4-items` - Four equal columns
### Bento Layouts (Asymmetric)
- `two-columns-alternating-heights` - Alternating tall/short columns
- `asymmetric-60-wide-40-narrow` - 60% wide left, 40% narrow right
- `three-columns-all-equal-width` - Three equal columns
- `four-items-2x2-equal-grid` - Perfect 2x2 grid
- `one-large-right-three-stacked-left` - Left: 3 items, Right: 1 large
- `items-top-row-full-width-bottom` - Top: full width, Bottom: items
- `full-width-top-items-bottom-row` - Full width top, items below
- `one-large-left-three-stacked-right` - Left: 1 large, Right: 3 items
- `timeline` - Zigzag timeline layout
## Height Control Pattern
### uniformGridCustomHeightClasses Prop
All CardStack-based components should accept this optional prop to control item heights in both grid and carousel modes.
```tsx
interface SectionCardProps {
items: ItemType[];
gridVariant: GridVariant;
uniformGridCustomHeightClasses?: string;
carouselMode?: "auto" | "buttons";
// ... other props
}
```
### Default Values by Component Type
**Most components (Feature, Product, Pricing, Team, Metrics, Blog):**
```tsx
uniformGridCustomHeightClasses = "min-h-80 2xl:min-h-90"
```
**Testimonial components (need flexible heights):**
```tsx
uniformGridCustomHeightClasses = "min-h-none"
```
**Hero carousel components (no minimum):**
```tsx
uniformGridCustomHeightClasses = "min-h-0"
```
**Feature components (optimized for compact layout):**
```tsx
// Hardcoded in FeatureCardFour
uniformGridCustomHeightClasses = "min-h-0"
```
### Implementation Pattern
The prop flows: Section Component → CardStack → GridLayout/Carousel
```tsx
// In section component (e.g., ProductCardOne.tsx)
const ProductCardOne = ({
products,
gridVariant,
uniformGridCustomHeightClasses = "min-h-80 2xl:min-h-90",
// ... other props
}: ProductCardOneProps) => {
return (
<CardStack
gridVariant={gridVariant}
uniformGridCustomHeightClasses={uniformGridCustomHeightClasses}
// ... other props
>
{products.map((product) => (
<div className="card">...</div>
))}
</CardStack>
);
};
```
**Individual card elements must use `min-h-0`:**
```tsx
<div className={cls("card p-6 rounded-theme-capped h-full min-h-0")}>
{/* Product content */}
</div>
```
This prevents height conflicts and ensures proper flex behavior.
## Carousel Modes
### carouselMode Prop
```tsx
carouselMode?: "auto" | "buttons"
```
- **`"auto"`** - Auto-scrolling carousel (uses AutoCarousel with embla-carousel-auto-scroll)
- **`"buttons"`** - Button-controlled carousel (uses ButtonCarousel with prev/next buttons)
**Default is typically `"buttons"`** for better accessibility and user control.
## TextBox Integration
CardStack components integrate with TextBox for section headers.
### TextBox Layout Options
```tsx
import type { TextboxLayout } from "@/providers/themeProvider/config/constants";
textboxLayout: TextboxLayout // "default" | "split" | "split-actions" | "split-description" | "inline-image"
```
**Layout Modes:**
1. **`"default"`** - Title and description stacked vertically, centered or left-aligned
```
[Tag]
Title
Description
[Buttons]
```
2. **`"split"`** - Title and description on left (60%), buttons on right (40%)
```
[Tag]
Title | Description | [Buttons]
```
3. **`"split-actions"`** - Title and description on left, buttons on right (no description on right)
```
[Tag]
Title | [Buttons]
Description |
```
4. **`"split-description"`** - Title on left, description on right, buttons below
```
[Tag]
Title | Description
[Buttons]
```
5. **`"inline-image"`** - Centered heading with inline images between text segments, buttons below
```
Text [Image] Text [Image] Text
[Buttons]
```
**Special props for inline-image layout:**
```tsx
import type { TitleSegment } from "@/components/cardStack/types";
titleSegments?: TitleSegment[] // Array of text and image segments
titleImageWrapperClassName?: string // Styling for image wrapper
titleImageClassName?: string // Styling for the image itself
```
**Example usage:**
```tsx
<FeatureCardOne
titleSegments={[
{ type: "text", content: "Discover" },
{ type: "image", src: "/icon.png", alt: "Icon" },
{ type: "text", content: "powerful features" }
]}
textboxLayout="inline-image"
// ... other props
/>
```
**Inline Image Behavior:**
- Images are styled with `primary-button` background
- Automatic rotation alternation: 1st: -rotate-12, 2nd: rotate-12, etc.
- Square aspect ratio (1.1em height)
- Proper spacing with mx-1 margins
- Supports both local paths and external URLs
### TextBox Props in CardStack
```tsx
<CardStack
title="Our Products"
titleSegments={[
{ type: "text", content: "Our" },
{ type: "image", src: "/icon.png", alt: "Product Icon" },
{ type: "text", content: "Products" }
]} // Optional: use titleSegments for inline-image layout
description="Discover our latest offerings"
tag="Products"
tagIcon={Package}
buttons={[
{ text: "View All", href: "/products" }
]}
textboxLayout="split" // or "inline-image" with titleSegments
useInvertedBackground="noInvert" // "noInvert" | "invertDefault" | "invertCard"
// TextBox className overrides
textBoxClassName=""
titleClassName=""
titleImageWrapperClassName="" // For inline-image layout
titleImageClassName="" // For inline-image layout
descriptionClassName=""
tagClassName=""
buttonContainerClassName=""
buttonClassName=""
buttonTextClassName=""
// ... other props
>
```
## Button System
### ButtonConfig Interface
```tsx
interface ButtonConfig {
text: string;
onClick?: () => void;
href?: string;
props?: Partial<ButtonPropsForVariant<CTAButtonVariant>>;
// NO variant property - controlled by ThemeProvider
}
```
### Button Rendering Logic
Buttons are rendered with automatic primary/secondary styling:
- **Index 0**: Primary button (`primary-button` class)
- **Index 1+**: Secondary button (`secondary-button` class)
**Maximum 2 buttons** per section (enforced in TextBox component).
```tsx
const buttons: ButtonConfig[] = [
{ text: "Get Started", href: "/signup" }, // Primary
{ text: "Learn More", onClick: () => {} } // Secondary
];
```
The `variant` is determined by ThemeProvider's `defaultButtonVariant` setting.
## Complete CardStack Section Example
```tsx
"use client";
import React, { memo } from "react";
import CardStack from "@/components/cardStack/CardStack";
import { cls } from "@/lib/utils";
import type { GridVariant, ButtonConfig } from "@/components/cardStack/types";
import type { LucideIcon } from "lucide-react";
type Product = {
title: string;
description: string;
price: string;
image: string;
};
interface ProductCardOneProps {
products: Product[];
carouselMode?: "auto" | "buttons";
gridVariant: GridVariant;
uniformGridCustomHeightClasses?: string;
title: string;
description: string;
tag?: string;
tagIcon?: LucideIcon;
buttons?: ButtonConfig[];
textboxLayout: "default" | "split" | "split-actions" | "split-description";
ariaLabel?: string;
// Main wrapper
className?: string;
// CardStack customization
cardStackClassName?: string;
// TextBox customization
textBoxClassName?: string;
titleClassName?: string;
descriptionClassName?: string;
tagClassName?: string;
buttonsWrapperClassName?: string;
// Card customization
cardClassName?: string;
cardTitleClassName?: string;
cardDescriptionClassName?: string;
cardPriceClassName?: string;
cardImageClassName?: string;
}
const ProductCardOne = ({
products,
carouselMode = "buttons",
gridVariant,
uniformGridCustomHeightClasses = "min-h-80 2xl:min-h-90",
title,
description,
tag,
tagIcon,
buttons,
textboxLayout,
ariaLabel = "Product section",
className = "",
cardStackClassName = "",
textBoxClassName = "",
titleClassName = "",
descriptionClassName = "",
tagClassName = "",
buttonsWrapperClassName = "",
cardClassName = "",
cardTitleClassName = "",
cardDescriptionClassName = "",
cardPriceClassName = "",
cardImageClassName = "",
}: ProductCardOneProps) => {
return (
<section
aria-label={ariaLabel}
className={cls("w-full py-20", className)}
>
<div className="w-content-width mx-auto">
<CardStack
mode={carouselMode}
gridVariant={gridVariant}
uniformGridCustomHeightClasses={uniformGridCustomHeightClasses}
title={title}
description={description}
tag={tag}
tagIcon={tagIcon}
buttons={buttons}
textboxLayout={textboxLayout}
className={cardStackClassName}
textBoxClassName={textBoxClassName}
titleClassName={titleClassName}
descriptionClassName={descriptionClassName}
tagClassName={tagClassName}
buttonsWrapperClassName={buttonsWrapperClassName}
>
{products.map((product, index) => (
<div
key={`${product.title}-${index}`}
className={cls(
"card p-6 rounded-theme-capped h-full min-h-0 flex flex-col",
cardClassName
)}
>
<img
src={product.image}
alt={product.title}
className={cls("w-full h-48 object-cover mb-4", cardImageClassName)}
/>
<h3 className={cls("text-xl font-semibold mb-2", cardTitleClassName)}>
{product.title}
</h3>
<p className={cls("text-foreground/75 flex-1", cardDescriptionClassName)}>
{product.description}
</p>
<p className={cls("text-2xl font-bold mt-4", cardPriceClassName)}>
{product.price}
</p>
</div>
))}
</CardStack>
</div>
</section>
);
};
ProductCardOne.displayName = "ProductCardOne";
export default memo(ProductCardOne);
```
## Animation Types
CardStack supports GSAP-powered scroll-triggered animations:
```tsx
animationType?: "none" | "opacity" | "slide-up" | "scale-rotate" | "blur-reveal"
```
**Animation Descriptions:**
- **`none`** - No animation
- **`opacity`** - Fade in
- **`slide-up`** - Slide up from below with stagger
- **`scale-rotate`** - Scale + rotate entrance with stagger
- **`blur-reveal`** - Blur to clear reveal with stagger
Each animation uses GSAP ScrollTrigger with staggered effect on children.
## Best Practices
### ✅ DO:
- Accept `uniformGridCustomHeightClasses` as optional prop with sensible default
- Use `min-h-0` on individual card elements for proper flex behavior
- Pass through all CardStack customization props (className overrides)
- Use appropriate default height for your component type
- Document the default value in registry propsSchema
- Provide className props for all card sub-elements
- Use `card` class for consistent card styling (theme-aware)
- Use `rounded-theme-capped` for card border radius
- Set `carouselMode` default to `"buttons"` for accessibility
### ❌ DO NOT:
- Hardcode height classes in CardStack (let it be controlled via prop)
- Remove the `uniformGridCustomHeightClasses` prop without specific reason
- Use different height classes for grid vs carousel (they should match)
- Forget to apply `min-h-0` on card wrapper divs
- Specify button `variant` in ButtonConfig (controlled by ThemeProvider)
- Create more than 2 buttons per section
- Use `lg:` or `xl:` breakpoints for layout changes
## CardStack Component Checklist
When creating a new CardStack-based section component:
### Props & Configuration
- [ ] Accept `uniformGridCustomHeightClasses` prop with appropriate default
- [ ] Accept `carouselMode` prop (default: `"buttons"`)
- [ ] Accept `gridVariant` as required prop (or hardcode if single variant)
- [ ] Accept `textboxLayout` for TextBox configuration
- [ ] Accept `animationType` for scroll animations (optional)
### CardStack Integration
- [ ] Pass `uniformGridCustomHeightClasses` to CardStack
- [ ] Pass all TextBox props (title, description, tag, tagIcon, buttons)
- [ ] Pass all TextBox className overrides
- [ ] Pass cardStackClassName for CardStack wrapper customization
### Card Implementation
- [ ] Apply `min-h-0` to individual card wrapper divs
- [ ] Use `card` class for card background/border styling
- [ ] Use `rounded-theme-capped` for border radius
- [ ] Provide className override props for all card sub-elements
- [ ] Use `h-full` on cards for consistent heights within grid
### Button System
- [ ] Use ButtonConfig type for buttons array
- [ ] Do NOT specify variant in ButtonConfig
- [ ] Maximum 2 buttons
- [ ] Let ThemeProvider control button variant
### Section Structure
- [ ] Use semantic `<section>` tag with aria-label
- [ ] Use `w-full py-20` on section
- [ ] Use `w-content-width mx-auto` wrapper
- [ ] Provide section className override
### Documentation
- [ ] Document `uniformGridCustomHeightClasses` default in registry
- [ ] Document all grid variants supported
- [ ] Document carousel mode options
- [ ] Include usage example with typical props