styled-components

Styled Components (Tackl)

File structure

Every component folder:

ComponentName/
  index.tsx       # Logic + JSX only — no styled definitions
  styles.ts       # All styled-components
  interface.ts  # Props types

Import styles as a namespace:

import * as S from './styles';

const Hero = (props: HeroProps) => <S.Jacket {...props}>...</S.Jacket>;

Rules

1. Never put styled-components in index.tsx.
2. Never use Tailwind, CSS modules, inline styles, or SASS for component styling.
3. Use Tackl primitives from @theme/tackl (Section, Header, Div, etc.) as styled bases.
4. Use Tackl type styles from @tackl/type for typography (headlineL, bodyL, captionS).
5. Use theme helpers: getBrand, getGlobal, getRadius, getEase, getFont, getFontWeight.
6. Mobile-first responsive styles via bp.l / bp.m / bp.s from @theme/tackl.
7. Pass styling props with $ prefix (transient props) to avoid DOM leakage.

styles.ts template

// Imports
// ------------
import { Section } from '@tackl';
import {} from '@tackl/type';
import styled, { css } from 'styled-components';
import { getBrand } from '@theme/tackl';

// Interfaces
// ------------
interface StylesInterface {
	$isActive?: boolean;
}

// Exports
// ------------
export const Jacket = styled(Section)<StylesInterface>(
	props => css`
		display: flex;
		padding: 1rem;
		background: ${getBrand('c1')};
		opacity: ${props.$isActive ? 1 : 0.6};
	`
);

Naming

Use descriptive layout names — not generic wrappers:

• Jacket — outermost container
• Wrapper — inner layout shell
• Content — text/media area
• Coat — overlay or secondary layer

Theme access

Global theme lives in src/theme/index.ts. Access in styled-components via props.theme or Tackl getters.

ThemeProvider wraps the app in app/(site)/Client.tsx. GlobalStyle is applied there.

SSR

StyledComponentsRegistry in src/utils/registry.jsx handles SSR style collection. Client components using styled-components must render inside this registry (already wired in Client.tsx).