Accordion

npm install react-aria-components

"use client";

import type { ReactNode } from "react";
import { Button, Disclosure, DisclosureGroup, DisclosurePanel, Heading, type DisclosureGroupProps, type DisclosureProps } from "react-aria-components";

const join = (...classes: (string | undefined)[]) => classes.filter(Boolean).join(" ");

const styles = {
  root: "flex w-full flex-col font-(family-name:--tui-font) text-(length:--tui-accordion-font-size) text-(--tui-accordion-fg)",
  item: "group border-solid border-(--tui-accordion-line) border-b-(length:--tui-accordion-line-width) data-disabled:opacity-(--tui-accordion-disabled-opacity)",
  trigger:
    "flex min-h-(--tui-accordion-height) w-full cursor-default items-center justify-between gap-3 rounded-(--tui-accordion-radius) px-(--tui-accordion-padding-x) text-left font-(family-name:--tui-font) text-(length:--tui-accordion-font-size) font-(--tui-accordion-font-weight) text-(--tui-accordion-fg) outline-none transition-colors duration-(--tui-duration) data-focus-visible:[outline:var(--tui-accordion-ring-width)_solid_var(--tui-accordion-ring)] data-focus-visible:[outline-offset:var(--tui-accordion-ring-offset)] data-hovered:bg-(--tui-accordion-bg-hover)",
  icon: "size-4 shrink-0 text-(--tui-accordion-icon) transition-transform duration-(--tui-duration) group-data-expanded:rotate-180",
  panel: "px-(--tui-accordion-padding-x) pb-(--tui-accordion-panel-padding) leading-normal text-(--tui-accordion-muted)",
};

export function Accordion({ className, ...props }: Omit<DisclosureGroupProps, "className"> & { className?: string }) {
  return <DisclosureGroup {...props} className={join(styles.root, className)} />;
}

export interface AccordionItemProps extends Omit<DisclosureProps, "className" | "children"> {
  title: ReactNode;
  children: ReactNode;
  className?: string;
}

export function AccordionItem({ title, children, className, ...props }: AccordionItemProps) {
  return (
    <Disclosure {...props} className={join(styles.item, className)}>
      <Heading className="m-0">
        <Button slot="trigger" className={styles.trigger}>
          {title}
          <svg aria-hidden viewBox="0 0 16 16" fill="none" stroke="currentColor" strokeWidth="1.75" strokeLinecap="round" strokeLinejoin="round" className={styles.icon}>
            <path d="M4 6l4 4 4-4" />
          </svg>
        </Button>
      </Heading>
      <DisclosurePanel>
        <div className={styles.panel}>{children}</div>
      </DisclosurePanel>
    </Disclosure>
  );
}

:root {
  color-scheme: light;
  --tui-bg: #ffffff;
  --tui-fg: #0a0a0a;
  --tui-muted: #f5f5f5;
  --tui-muted-fg: #737373;
  --tui-border: #e5e5e5;
  --tui-primary: #171717;
  --tui-primary-fg: #fafafa;
  --tui-ring: #a3a3a3;
  --tui-success: #16a34a;
  --tui-warning: #d97706;
  --tui-danger: #dc2626;
  --tui-radius: 8px;
  --tui-border-width: 1px;
  --tui-space: 4px;
  --tui-shadow: none;
  --tui-font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --tui-text: 14px;
  --tui-duration: 150ms;

  /* Accordion */
  --tui-accordion-height: calc(var(--tui-space) * 12);
  --tui-accordion-padding-x: 0px;
  --tui-accordion-panel-padding: calc(var(--tui-space) * 4);
  --tui-accordion-radius: 0px;
  --tui-accordion-line-width: var(--tui-border-width);
  --tui-accordion-font-size: var(--tui-text);
  --tui-accordion-font-weight: 500;
  --tui-accordion-fg: var(--tui-fg);
  --tui-accordion-muted: var(--tui-muted-fg);
  --tui-accordion-icon: var(--tui-muted-fg);
  --tui-accordion-line: var(--tui-border);
  --tui-accordion-bg-hover: transparent;
  --tui-accordion-ring: var(--tui-ring);
  --tui-accordion-ring-width: 2px;
  --tui-accordion-ring-offset: 2px;
  --tui-accordion-disabled-opacity: 0.5;
}

.dark,
[data-theme="dark"] {
  color-scheme: dark;
  --tui-bg: #0a0a0a;
  --tui-fg: #fafafa;
  --tui-muted: #1c1c1c;
  --tui-muted-fg: #a3a3a3;
  --tui-border: #2a2a2a;
  --tui-primary: #fafafa;
  --tui-primary-fg: #171717;
  --tui-ring: #737373;
  --tui-success: #22c55e;
  --tui-warning: #f59e0b;
  --tui-danger: #ef4444;
}