# Island actions

> The black pill at the top of a phone, used by an assistant to report live actions: it buds off a drop, glows red, opens to a deal at risk and walks a follow-up through to done.

A phone-top island for an assistant at work. The pill buds off a gooey drop that lights up as the assistant’s mark and is swallowed back into a red alert. Tap it: a deal is at risk; open it and a reply is drafted; send it and the island spins while it writes, glows blue for review, turns green once approved, reports four actions done, lists the apps it used and folds back into the plain pill. Every state is a prop, and every button works.

A React component by Bruno Delorence: https://brunodelorence.com/components/island-actions. MIT License, Copyright (c) 2026 Bruno Delorence.

Category: Mobile · Systems.

## Anatomy

1. **Stage**: A 4:3 size container that scales the top of a 390-point phone to four fifths of its width; the island sits 13 points below the screen’s top.
2. **Island**: The black pill, a button over two shapes melted by a goo filter. It springs between sizes; a tap opens or closes it.
3. **Assistant mark**: The red mark of the assistant. It buds out of the pill in a drop on the way in and is swallowed on the way home.
4. **Alert badge**: A red disc with a bang, under the mark: why the island opened.
5. **Deal badge**: The object the assistant is acting on, beside the alert. Badges pop in from small, one after the other.
6. **Message**: One line in white, with a grey aside when there is one; the words come in one by one out of a blur.
7. **Action**: The step that moves the story on: here Open, then Send, Approve and the summary. Hidden actions are inert.

## When to use

- An assistant on a phone that works in the background and has to report a short task: needs you, working, ready for review, done.
- A flow of two or three taps that should never leave the current screen: open, send, approve.
- A live status that changes shape with its weight: a small pill while it works, a wide card when it needs a decision.
- A brand moment for an agent’s actions on mobile, where the morphing black shape is the product’s signature.

## When not to use

- Anything to read at length or edit. Open a sheet or a full screen; the island holds one line and one action.
- Several tasks at once. It shows one story at a time; use a notification list or an inbox.
- Desktop or a wide layout. It is drawn as the top of a 390-point phone; use a toast or an approval card.
- Errors that block the person. Use an alert dialog with a clear way out, not a pill that folds itself away.
- Plain system notifications with no follow-up. Use a toast; the island’s steps exist for a decision.

## Installation

Install it with the shadcn CLI, into components/island-actions of any React project:

```sh
npx shadcn@latest add https://brunodelorence.com/r/island-actions.json
```

Or copy all the source files below into one folder of your project. Either way it needs React 19 and a bundler with CSS Modules (Next.js, Vite).

It has a dark colour scheme. Its colours are CSS light-dark() pairs, kept inside @supports so that builds which rewrite light-dark() for older browsers leave them alone: it follows your page’s color-scheme (light unless the page sets one) or its colorScheme prop, with nothing to configure. Browsers without light-dark() show it light.

## Usage

```tsx
import { IslandActions, type IslandState } from './island-actions';
import { useState } from 'react';

export function AssistantIsland() {
  const [state, setState] = useState<IslandState>('alert');
  return (
    <IslandActions
      state={state}
      onStateChange={setState}
      assistantName="Tuli"
      dealName="Halden"
      actionCount={4}
    />
  );
}
```

## States

- **Plain pill**: Nothing to report: the bare island, with the status bar showing on either side.
- **Needs attention**: Stretched to 234 points with the mark and a red bang, under a red rim and glow.
- **At risk**: Open wide: alert and deal badges, the message, and Open.
- **Follow-up drafted**: Wide, with the draft’s line in white and grey and a red Send button.
- **Working**: Folded to a 260-point pill: a spinner whose arc grows as it turns, and Edit.
- **Ready for review**: The arc closes into a ring with a tick under a blue rim; a tap on it approves.
- **Approved**: A green rim, the tick moved to the end; it opens into the summary.
- **Summary**: Wide: the number of actions in a green badge and a green button to see them.
- **All done**: The apps the assistant used, in a row of badges, before it folds back to the plain pill.
- **Dark**: The stage, glass and status bar turn dark; the island stays black, as the hardware is.

## How it works

- The phone is drawn in CSS at its design size, a 390 × 844 screen, and scaled as one piece from the stage’s own size (a size container; tan(atan2()) of two lengths is their ratio), so its top fills four fifths of the stage, close up on the island.
- The black is two boxes, the pill and a drop, in one layer under an SVG filter: a Gaussian blur, then a colour matrix that turns alpha into a hard threshold. Near each other their blurred edges add up past the threshold, so they stretch a neck and melt together; apart they are two clean shapes. The mark, words and buttons sit above, outside the filter.
- Every part is placed in design px from the island’s top middle, per state, and moves there by CSS transitions whose curve is a damped spring sampled into linear(): stiffness 380 and damping 22 for the pill (about 11% past, settled in 0.55 s), a softer 150 / 15 for the drop leaving and coming back.
- Leaving the plain pill runs through two frames before the target: the drop leaves (1 s), the mark lights up in it (0.5 s), then it is swallowed. Coming home is the reverse: the mark pulls out to the left, goes dark, and the drop melts back in.
- Words come in one by one, 70 ms apart, out of a 6 px blur, once the pill has made room; badges pop from 60% scale in order. The spinner’s arc grows from 6% to 86% of the ring as it turns, then closes into a ring and a tick is drawn in.
- With `state`, the island shows that state and only reports taps through onStateChange. Without it, it runs itself (the reply is written in 1.7 s, an approval opens the report, "All done" folds away after a second), and while on screen and untouched a demo finger plays the whole story in a 14 s loop. Any input hands it to the reader.

## API reference

- **state** (`'idle' | 'alert' | 'risk' | 'followUp' | 'working' | 'review' | 'done' | 'complete' | 'allDone'`): Shows this state and leaves every change to you: taps only call onStateChange, nothing moves on by itself and the demo is off. Changing it animates there.
- **defaultState** (`IslandState`, default `'idle'`): Where an island that runs itself starts.
- **onStateChange** (`(state: IslandState) => void`): Called with the state a tap asks for, and, when the island runs itself, with each state it moves on to.
- **assistantName** (`string`, default `'Tuli'`): The assistant’s name, in “Tuli completed 4 actions”.
- **dealName** (`string`, default `'Halden'`): The deal’s name, in “Halden deal at risk!”.
- **actionCount** (`number`, default `4`): How many actions the report counts, in its green badge and its words.
- **autoplay** (`boolean`, default `true`): While visible and untouched, a demo finger plays the story in a 14 s loop (not with `state`). Any input from the reader stops it.
- **colorScheme** (`'light' | 'dark' | 'system'`): Its colours: light, dark, or the reader’s system setting. Without it the component follows the page’s color-scheme, which is light unless the page sets one.
- **className** (`string`): Added to the stage element.

## Accessibility

- The island is a real button: its name says what the assistant is reporting, aria-expanded says whether it is open, and a press opens or closes it. Escape folds it back to the plain pill.
- Every control on it (open the deal, send the follow-up, edit the draft, approve, show what was done, dismiss) is a button with its own name and a visible :focus-visible ring; hidden ones are inert, so neither the keyboard nor a screen reader reaches them.
- A live region announces each new state: the alert, the deal at risk, the draft being written and ready, the approval and the report.
- The phone, status bar, mark, badges, goo shapes and demo finger are decorative and hidden from assistive technology.
- Under reduced motion the island changes state in one step, with no drop, blur, spring, pulse or spinning, and the demo never plays. The pulse and the spinner also pause while the island is off screen or the tab is hidden.

## Source

### island-actions/island-actions.tsx

```tsx
// Copyright (c) 2026 Bruno Delorence. MIT License.

'use client';

import {
  useEffect,
  useEffectEvent,
  useId,
  useLayoutEffect,
  useRef,
  useState,
  type CSSProperties,
  type ReactNode,
} from 'react';
import {
  Bang,
  CalendarMark,
  ChatMark,
  DealMark,
  DotsMark,
  MailMark,
  OpenMark,
  Pencil,
  Tick,
} from './icons';
import { useAutoplay } from './use-autoplay';
import styles from './island-actions.module.css';

/*
 * Island actions: the black pill at the top of a phone, used by an assistant to report what it
 * is doing for you. A deal needs attention; the pill buds off a drop that turns into the
 * assistant's red mark, swallows it back and stretches into an alert with a red glow. A tap opens
 * it: the deal is at risk; open it, and a follow-up is drafted; send it, and the pill shrinks to
 * a spinner and a pencil; the draft comes back for review under a blue glow; approve it, and the
 * pill reports four actions done, then lists the apps it used and folds back to the plain pill.
 *
 * - The black shapes are two boxes, the pill and a drop, in one layer under an SVG "goo" filter:
 *   a blur, then a hard alpha threshold. Close together their blurred edges add up past the
 *   threshold, so they meet in a neck and melt into each other; apart they are two clean shapes.
 *   Everything drawn on top (the mark, the words, the buttons) sits outside the filter.
 * - Every shape is placed in design px from the pill's top middle, per state, and moves there by
 *   CSS transitions on a spring: a linear() curve sampled below from a damped spring, so the pill
 *   overshoots a little and settles, as a physical one would.
 * - Going from the plain pill to anything else, and back, runs through in-between frames: the
 *   drop leaves, the mark lights up in it, then it is swallowed (or the reverse on the way home).
 * - The words come in one by one out of a blur; badges pop from small; the spinner's arc grows as
 *   it turns, and closes into a ring with a tick when the draft is ready.
 * - `state` shows one state and leaves the changes to you (onStateChange reports the reader's
 *   taps); without it the island runs itself, and while on screen and untouched a demo finger
 *   plays the whole story in a 14 s loop. Any real input hands it to the reader.
 * - Light or dark: the stage, the phone's glass and the status bar are light-dark() tokens; the
 *   island is black on both, as the hardware is.
 */

export type IslandState =
  'idle' | 'alert' | 'risk' | 'followUp' | 'working' | 'review' | 'done' | 'complete' | 'allDone';

/** A state, or one of the in-between frames on the way out of and back into the plain pill. */
type Frame = IslandState | 'split' | 'spark' | 'part' | 'fade';

const STATES: IslandState[] = [
  'idle',
  'alert',
  'risk',
  'followUp',
  'working',
  'review',
  'done',
  'complete',
  'allDone',
];
const EXPANDED: Frame[] = ['risk', 'followUp', 'complete', 'allDone'];
const PLAIN: Frame[] = ['idle', 'split', 'spark', 'part', 'fade'];

/* ------------------------------------------------------------------------------------------ */
/* Springs                                                                                     */

/**
 * A damped spring from 0 to 1 (stiffness and damping per unit mass), sampled at 60 fps into a
 * CSS linear() curve, with how long it takes to settle.
 */
function spring(stiffness: number, damping: number) {
  const step = 1 / 600;
  const points = [0];
  let x = 0;
  let v = 0;
  let t = 0;
  while (t < 3) {
    for (let i = 0; i < 10; i++) {
      v += (stiffness * (1 - x) - damping * v) * step;
      x += v * step;
      t += step;
    }
    points.push(x);
    if (t > 0.15 && Math.abs(1 - x) < 0.002 && Math.abs(v) < 0.02) break;
  }
  points[points.length - 1] = 1;
  return {
    easing: `linear(${points.map((p) => Math.round(p * 10000) / 10000).join(', ')})`,
    ms: `${Math.round(t * 1000)}ms`,
  };
}
/** The pill's own moves: about 11% past, back by 0.55 s. */
const POP = spring(380, 22);
/** The drop leaving and coming back: slower and softer, so the neck between them shows. */
const GOO = spring(90, 12);

/* ------------------------------------------------------------------------------------------ */
/* Geometry, in design px: x from the screen's middle, y from the island's top (13 px down).   */

type Box = { x: number; y: number; w: number; h: number };
type Shape = {
  /** The pill. */
  body: Box;
  /** The drop that carries the mark out and back; inside the pill when they are one. */
  blob: Box;
  /** The red mark. */
  glyph: Box;
  glyphOn: boolean;
  /** A coloured edge and glow around the pill. */
  rim: 'none' | 'red' | 'blue' | 'green';
};

const box = (x: number, y: number, w: number, h: number): Box => ({ x, y, w, h });
const WIDE: Shape = {
  body: box(-181, 0, 362, 78),
  blob: box(-181, 0, 78, 78),
  glyph: box(-164, 16, 46, 46),
  glyphOn: true,
  rim: 'none',
};
const APART = { body: box(-59, 0.5, 118, 36), blob: box(-126, 0.5, 51, 36) };
const HOME = { body: box(-59, 0.5, 118, 36), blob: box(-129, -0.5, 54, 38) };
const SHAPES: Record<Frame, Shape> = {
  idle: {
    body: box(-60, 0, 120, 37),
    blob: box(-54, 2, 40, 33),
    glyph: box(-52, 3, 36, 31),
    glyphOn: false,
    rim: 'none',
  },
  split: { ...APART, glyph: box(-124, 3, 47, 31), glyphOn: false, rim: 'none' },
  spark: { ...APART, glyph: box(-124, 3, 47, 31), glyphOn: true, rim: 'none' },
  alert: {
    body: box(-117, 0, 234, 38),
    blob: box(-117, 0, 54, 38),
    glyph: box(-113.5, 3.5, 47, 31),
    glyphOn: true,
    rim: 'red',
  },
  risk: WIDE,
  followUp: WIDE,
  working: {
    body: box(-130, 0, 260, 37),
    blob: box(-130, 0, 52, 37),
    glyph: box(-127, 3, 47, 31),
    glyphOn: true,
    rim: 'none',
  },
  review: {
    body: box(-130, 0, 260, 37),
    blob: box(-130, 0, 52, 37),
    glyph: box(-127, 3, 47, 31),
    glyphOn: true,
    rim: 'blue',
  },
  done: {
    body: box(-126, 0, 252, 37),
    blob: box(-126, 0, 52, 37),
    glyph: box(-123, 3, 47, 31),
    glyphOn: true,
    rim: 'green',
  },
  complete: WIDE,
  allDone: WIDE,
  part: { ...HOME, glyph: box(-125.5, 3.5, 47, 31), glyphOn: true, rim: 'none' },
  fade: { ...HOME, glyph: box(-125.5, 3.5, 47, 31), glyphOn: false, rim: 'none' },
};

/** A round thing centred on (x, y), d across. */
const disc = (x: number, y: number, d: number): Box => box(x - d / 2, y - d / 2, d, d);

/** Where the shared ring (spinner, then tick, then the green button) sits, by frame. */
function ringBox(frame: Frame) {
  if (frame === 'done') return disc(107, 18.5, 32);
  if (frame === 'complete' || frame === 'allDone') return disc(142, 39, 46);
  return disc(77.3, 18.5, 32);
}

const place = (b: Box): CSSProperties => ({
  left: `${b.x}px`,
  top: `${b.y}px`,
  width: `${b.w}px`,
  height: `${b.h}px`,
});

/* ------------------------------------------------------------------------------------------ */

/** Words that come in one after the other, out of a blur. `from` numbers on from earlier words. */
function Words({ text, from = 0, className }: { text: string; from?: number; className?: string }) {
  return (
    <span className={className}>
      {text.split(' ').map((word, index) => (
        <span key={index} className={styles.word} style={{ '--i': from + index } as CSSProperties}>
          {word}
          {index < text.split(' ').length - 1 ? ' ' : ''}
        </span>
      ))}
    </span>
  );
}

/** How long the island rests in each state the demo or the assistant moves on from by itself. */
const HOLD = { working: 1520, done: 480, allDone: 980 } as const;

/** The demo's script, in ms from the plain pill: [time, what]. Taps come with a finger. */
type Cue =
  { at: number; go: IslandState } | { at: number; reach: string; then: IslandState; hold?: number };
const SCRIPT: Cue[] = [
  { at: 550, go: 'alert' },
  { at: 3490, reach: 'hit', then: 'risk' },
  { at: 5190, reach: 'open', then: 'followUp' },
  { at: 5990, reach: 'send', then: 'working', hold: 500 },
  { at: 9010, reach: 'ring', then: 'done' },
  { at: 10410, reach: 'ring', then: 'allDone' },
];
const LOOP = 14000;

export function IslandActions({
  state,
  defaultState = 'idle',
  onStateChange,
  assistantName = 'Tuli',
  dealName = 'Halden',
  actionCount = 4,
  autoplay = true,
  colorScheme,
  className = '',
}: {
  /** Shows this state and leaves every change to you: taps only call onStateChange. */
  state?: IslandState;
  /** Where an island that runs itself starts. */
  defaultState?: IslandState;
  /** Called with the state a tap asks for (and, when the island runs itself, each new state). */
  onStateChange?: (state: IslandState) => void;
  /** The assistant's name, in "… completed 4 actions". */
  assistantName?: string;
  /** The deal's name, in "… deal at risk!". */
  dealName?: string;
  /** How many actions the assistant reports done. */
  actionCount?: number;
  /** While on screen and untouched, a demo finger plays the story in a loop (not with `state`). */
  autoplay?: boolean;
  /** Light or dark colours, or the reader's ('system'); without it, the page's color-scheme. */
  colorScheme?: 'light' | 'dark' | 'system';
  className?: string;
}) {
  const { ref: root, playing, visible, reduced, take } = useAutoplay<HTMLDivElement>(6000);
  const controlled = state !== undefined;
  const [own, setOwn] = useState<IslandState>(defaultState);
  const target = controlled ? state : own;
  const [frame, setFrame] = useState<Frame>(target);
  /** How long the incoming content waits for the pill to make room. */
  const [enter, setEnter] = useState(0);
  const [pressed, setPressed] = useState<string | null>(null);
  const [message, setMessage] = useState('');
  const screen = useRef<HTMLDivElement>(null);
  const finger = useRef<HTMLSpanElement>(null);
  const shown = useRef<Frame>(frame);
  const filterId = `goo${useId().replace(/[^a-zA-Z0-9]/g, '')}`;
  const island = useRef<HTMLDivElement>(null);
  /** The control on the island that last had focus. */
  const lastFocus = useRef<HTMLElement | null>(null);

  // A control that goes away with its state takes the focus with it: hand it on to the new
  // state's first control, or to the island itself, so the keyboard never drops to the page.
  useEffect(() => {
    const element = island.current;
    const before = lastFocus.current;
    if (!element || !before || !before.closest('[inert]')) return;
    const active = document.activeElement;
    if (active && active !== document.body && active !== before) return;
    const next =
      element.querySelector<HTMLElement>('button[data-on="true"]:not([inert])') ??
      element.querySelector<HTMLElement>('[data-part="hit"]');
    next?.focus({ preventScroll: true });
  }, [frame]);

  // The frames from what is shown to the target: through the drop on the way out of the plain
  // pill or back into it, straight otherwise.
  useLayoutEffect(() => {
    const from = shown.current;
    const timers: number[] = [];
    const show = (next: Frame) => {
      const prev = shown.current;
      shown.current = next;
      setEnter(
        EXPANDED.includes(next) && !EXPANDED.includes(prev)
          ? 300
          : !EXPANDED.includes(next) && EXPANDED.includes(prev)
            ? 260
            : 150,
      );
      setFrame(next);
    };
    const run = (steps: [Frame, number][]) => {
      let at = 0;
      for (const [next, wait] of steps) {
        at += wait;
        if (at === 0) show(next);
        else timers.push(window.setTimeout(() => show(next), at));
      }
    };
    if (from === target) return;
    if (reduced) run([[target, 0]]);
    else if (target === 'idle') {
      if (from === 'split' || from === 'spark') run([['idle', 0]]);
      else if (from === 'fade') run([['idle', 0]]);
      else if (from === 'part')
        run([
          ['fade', 0],
          ['idle', 420],
        ]);
      else
        run([
          ['part', 0],
          ['fade', 620],
          ['idle', 420],
        ]);
    } else if (PLAIN.includes(from)) {
      if (from === 'spark') run([[target, 0]]);
      else if (from === 'split')
        run([
          ['spark', 0],
          [target, 500],
        ]);
      else
        run([
          ['split', 0],
          ['spark', 1000],
          [target, 500],
        ]);
    } else run([[target, 0]]);
    return () => timers.forEach((timer) => window.clearTimeout(timer));
  }, [target, reduced]);

  /** Repeats are made to differ, so screen readers announce them again. */
  const announce = (text: string) => setMessage((now) => (now === text ? `${text} ` : text));

  const go = (next: IslandState) => {
    if (!controlled) setOwn(next);
    onStateChange?.(next);
  };
  const goNow = useEffectEvent(go);

  // Said aloud as each state arrives.
  const says: Record<IslandState, string> = {
    idle: '',
    alert: `${assistantName} needs your attention.`,
    risk: `${dealName} deal at risk.`,
    followUp: 'Follow up: draft reply ready.',
    working: `${assistantName} is writing the reply.`,
    review: 'The reply is ready for review.',
    done: 'Reply approved.',
    complete: `${assistantName} completed ${actionCount} actions.`,
    allDone: 'All done.',
  };
  const say = useEffectEvent((next: IslandState) => {
    if (says[next]) announce(says[next]);
  });
  useEffect(() => {
    say(target);
  }, [target]);

  // The assistant moves on by itself from a few states, when the island runs itself.
  useEffect(() => {
    if (controlled) return;
    const next: Partial<Record<IslandState, IslandState>> = {
      working: 'review',
      done: 'complete',
      allDone: 'idle',
    };
    const to = next[own];
    if (!to || !(own in HOLD)) return;
    const timer = window.setTimeout(() => goNow(to), HOLD[own as keyof typeof HOLD]);
    return () => window.clearTimeout(timer);
  }, [own, controlled]);

  // The demo: a finger plays the story on a 14 s loop, from the plain pill.
  const demo = autoplay && playing && !controlled;
  useEffect(() => {
    const stage = screen.current;
    const dot = finger.current;
    if (!demo || !stage || !dot) return;
    const timers: number[] = [];
    let flight: Animation | null = null;
    let at = { x: 330, y: 190 };
    const later = (ms: number, fn: () => void) => timers.push(window.setTimeout(fn, ms));
    /** The centre of a part of the island, in the screen's design px. */
    const centre = (part: string) => {
      const element = stage.querySelector<HTMLElement>(`[data-part="${part}"]`);
      const frameBox = stage.getBoundingClientRect();
      const scale = frameBox.width / 390 || 1;
      if (!element) return at;
      const r = element.getBoundingClientRect();
      return {
        x: (r.left + r.width / 2 - frameBox.left) / scale,
        y: (r.top + r.height / 2 - frameBox.top) / scale,
      };
    };
    const move = (to: { x: number; y: number }, ms: number, pressedDown = false) => {
      flight?.cancel();
      const scaleTo = pressedDown ? 0.82 : 1;
      flight = dot.animate(
        [
          { transform: `translate(${at.x}px, ${at.y}px) scale(1)` },
          { transform: `translate(${to.x}px, ${to.y}px) scale(${scaleTo})` },
        ],
        { duration: ms, easing: 'cubic-bezier(0.3, 0.7, 0.2, 1)', fill: 'forwards' },
      );
      at = to;
    };
    const loop = () => {
      for (const cue of SCRIPT) {
        if ('go' in cue) later(cue.at, () => goNow(cue.go));
        else
          later(cue.at, () => {
            // The finger comes down from below right, taps, and lifts.
            const to = centre(cue.reach);
            at = { x: to.x + 46, y: to.y + 120 };
            dot.dataset.shown = '';
            move(to, 380);
            later(430, () => {
              setPressed(cue.reach);
              move(at, 110, true);
            });
            later(430 + (cue.hold ?? 0) + 110, () => {
              setPressed(null);
              move(at, 140);
              if (cue.then) goNow(cue.then);
            });
            later(430 + (cue.hold ?? 0) + 330, () => delete dot.dataset.shown);
          });
      }
      later(LOOP, loop);
    };
    // Back to the plain pill first, if the reader left it elsewhere.
    if (own !== 'idle') {
      goNow('idle');
      later(1800, loop);
    } else loop();
    return () => {
      timers.forEach((timer) => window.clearTimeout(timer));
      flight?.cancel();
      delete dot.dataset.shown;
      setPressed(null);
    };
    // `own` is read once, when the demo starts.
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [demo]);

  const shape = SHAPES[frame];
  const wide = EXPANDED.includes(frame);
  const on = (...frames: Frame[]) => frames.includes(frame);

  /** Something drawn on the island, shown in some frames only. */
  const item = (
    part: string,
    where: Box,
    shownIn: boolean,
    children: ReactNode,
    extra: { className?: string; order?: number } = {},
  ) => (
    <span
      className={`${styles.item} ${extra.className ?? ''}`}
      data-part={part}
      data-on={shownIn}
      style={{ ...place(where), '--o': extra.order ?? 0 } as CSSProperties}
      aria-hidden="true"
    >
      {children}
    </span>
  );

  /** A control on the island; out of reach (inert) while hidden. */
  const control = (
    part: string,
    where: Box,
    shownIn: boolean,
    label: string,
    onPress: () => void,
    children: ReactNode,
    className = '',
  ) => (
    <button
      type="button"
      className={`${styles.item} ${styles.control} ${className}`}
      data-part={part}
      data-on={shownIn}
      data-pressed={pressed === part || undefined}
      style={place(where)}
      aria-label={label}
      inert={!shownIn}
      onClick={onPress}
    >
      {children}
    </button>
  );

  const hitLabel: Record<Frame, string> = {
    idle: `${assistantName}: nothing to report`,
    split: assistantName,
    spark: assistantName,
    part: assistantName,
    fade: assistantName,
    alert: `${assistantName} needs your attention. Open`,
    risk: `${dealName} deal at risk. Close`,
    followUp: 'Follow up, draft reply ready. Close',
    working: `${assistantName} is writing the reply`,
    review: 'Reply ready for review',
    done: 'Reply approved. Open',
    complete: `${assistantName} completed ${actionCount} actions. Close`,
    allDone: 'All done. Close',
  };
  const onIsland = () => {
    const next: Partial<Record<Frame, IslandState>> = {
      idle: 'alert',
      alert: 'risk',
      risk: 'alert',
      followUp: 'alert',
      done: 'complete',
      complete: 'idle',
      allDone: 'idle',
    };
    const to = next[frame];
    if (to) go(to);
  };

  const ring = ringBox(frame);
  const ringOn = on('working', 'review', 'done', 'complete', 'allDone');
  const ringActs = on('review', 'complete', 'allDone');

  return (
    <div
      ref={root}
      className={`${styles.root} ${className}`}
      data-part="stage"
      data-color-scheme={colorScheme}
      data-paused={!visible || undefined}
      style={
        {
          '--pop': POP.easing,
          '--pop-ms': POP.ms,
          '--goo': GOO.easing,
          '--goo-ms': GOO.ms,
          '--enter': `${enter}ms`,
        } as CSSProperties
      }
      onPointerDownCapture={take}
      onKeyDownCapture={(event) => {
        take();
        if (event.key === 'Escape' && frame !== 'idle') go('idle');
      }}
    >
      <svg className={styles.defs} aria-hidden="true" focusable="false">
        <filter
          id={filterId}
          x="-20%"
          y="-50%"
          width="140%"
          height="200%"
          colorInterpolationFilters="sRGB"
        >
          <feGaussianBlur in="SourceGraphic" stdDeviation="5.5" />
          <feColorMatrix values="0 0 0 0 0.055  0 0 0 0 0.055  0 0 0 0 0.043  0 0 0 26 -13" />
        </filter>
      </svg>
      <div className={styles.phone} data-part="phone">
        <div ref={screen} className={styles.screen} data-part="screen">
          <div
            className={styles.status}
            data-part="status-bar"
            data-on={frame === 'idle'}
            aria-hidden="true"
          >
            <span className={styles.time}>9:41</span>
            <span className={styles.icons}>
              <svg className={styles.signal} viewBox="0 0 18 12" focusable="false">
                <rect x="0" y="8" width="3" height="4" rx="0.8" />
                <rect x="5" y="5.5" width="3" height="6.5" rx="0.8" />
                <rect x="10" y="3" width="3" height="9" rx="0.8" />
                <rect x="15" y="0" width="3" height="12" rx="0.8" />
              </svg>
              <svg className={styles.wifi} viewBox="0 0 17 12" focusable="false">
                <path d="M8.5 0.8A11 11 0 0 1 16.4 4l-1.3 1.3a9.2 9.2 0 0 0-13.2 0L.6 4A11 11 0 0 1 8.5.8Z" />
                <path d="M8.5 4.3a7.4 7.4 0 0 1 5.3 2.2l-1.3 1.3a5.6 5.6 0 0 0-8 0L3.2 6.5a7.4 7.4 0 0 1 5.3-2.2Z" />
                <path d="M8.5 7.9c1 0 1.9.4 2.6 1.1L8.5 11.6 5.9 9a3.7 3.7 0 0 1 2.6-1.1Z" />
              </svg>
              <span className={styles.battery}>
                <span />
              </span>
            </span>
          </div>

          <div
            ref={island}
            className={styles.island}
            data-part="island"
            onFocus={(event) => {
              lastFocus.current = event.target;
            }}
            data-frame={frame}
            data-wide={wide}
            data-rim={shape.rim}
          >
            {/* The black: the pill and the drop, melted together by the goo filter. */}
            <div className={styles.goo} style={{ filter: `url(#${filterId})` }} aria-hidden="true">
              <span className={styles.body} style={place(shape.body)} />
              <span className={styles.blob} style={place(shape.blob)} />
            </div>
            <span
              className={styles.rim}
              data-part="rim"
              style={place(shape.body)}
              aria-hidden="true"
            />

            {/* The island itself, a button: a tap opens or closes it. */}
            <button
              type="button"
              className={styles.hit}
              data-part="hit"
              data-pressed={pressed === 'hit' || undefined}
              style={place(shape.body)}
              aria-label={hitLabel[frame]}
              aria-expanded={wide}
              onClick={onIsland}
            />

            <span
              className={styles.glyph}
              data-part="glyph"
              data-on={shape.glyphOn}
              style={place(shape.glyph)}
              aria-hidden="true"
            >
              <DotsMark className={styles.dots} />
            </span>

            {/* Compact alert: a red bang at the right end. */}
            {item('alert-bang', disc(98, 19, 32), on('alert'), <Bang className={styles.bang} />, {
              className: styles.bangDisc,
            })}

            {/* Wide: the badges under the mark. */}
            {item(
              'risk-badge',
              disc(-119, 55.6, 22),
              on('risk'),
              <Bang className={styles.bangSmall} />,
              {
                className: styles.badgeRisk,
              },
            )}
            {item(
              'deal-badge',
              disc(on('risk') ? -98.4 : -119, 55.6, 22),
              on('risk', 'followUp', 'allDone'),
              <DealMark className={styles.mark} />,
              { className: styles.badge, order: on('risk') ? 1 : 0 },
            )}
            {item('count-badge', disc(-119, 55.6, 22), on('complete'), actionCount, {
              className: styles.badgeCount,
            })}
            {item(
              'app-mail',
              disc(-91.4, 55.6, 22),
              on('allDone'),
              <MailMark className={styles.mark} />,
              {
                className: styles.badge,
                order: 1,
              },
            )}
            {item(
              'app-calendar',
              disc(-64, 55.6, 22),
              on('allDone'),
              <CalendarMark className={styles.mark} />,
              { className: styles.badge, order: 2 },
            )}
            {item(
              'app-chat',
              disc(-36, 55.6, 22),
              on('allDone'),
              <ChatMark className={styles.mark} />,
              {
                className: styles.badge,
                order: 3,
              },
            )}

            {/* Wide: the words. */}
            {item(
              'risk-text',
              box(-80.3, 44.6, 250, 22),
              on('risk'),
              <Words text={`${dealName} deal at risk!`} className={styles.primary} />,
              { className: styles.text },
            )}
            {item(
              'follow-text',
              box(-101, 44.6, 230, 22),
              on('followUp'),
              <>
                <Words text="Follow up" className={styles.primary} />{' '}
                <Words text="Draft reply ready" from={2} className={styles.muted} />
              </>,
              { className: styles.text },
            )}
            {item(
              'complete-text',
              box(-98, 44.6, 230, 22),
              on('complete'),
              <Words
                text={`${assistantName} completed ${actionCount} ${actionCount === 1 ? 'action' : 'actions'}`}
                className={styles.primary}
              />,
              { className: styles.text },
            )}
            {item(
              'done-text',
              box(-19, 44.6, 150, 22),
              on('allDone'),
              <Words text="All done!" className={styles.primary} />,
              { className: `${styles.text} ${styles.slide}` },
            )}

            {/* The controls. */}
            {control(
              'open',
              disc(151, 39, 30),
              on('risk'),
              `Open the ${dealName} deal`,
              () => go('followUp'),
              <OpenMark className={styles.open} />,
              styles.openButton,
            )}
            {control(
              'send',
              disc(142, 39, 46),
              on('followUp'),
              'Send the follow-up',
              () => go('working'),
              <span className={styles.chevron} aria-hidden="true">
                <span />
                <span />
              </span>,
              styles.send,
            )}
            {control(
              'edit',
              disc(111.5, 18.5, 31),
              on('working', 'review'),
              'Edit the draft',
              () => go('followUp'),
              <Pencil className={styles.pencil} />,
              styles.edit,
            )}
            <button
              type="button"
              className={`${styles.item} ${styles.control} ${styles.ring}`}
              data-part="ring"
              data-on={ringOn}
              data-phase={frame}
              data-pressed={pressed === 'ring' || undefined}
              style={place(ring)}
              aria-label={
                frame === 'review'
                  ? 'Approve the reply'
                  : frame === 'complete'
                    ? 'Show what was done'
                    : 'Dismiss'
              }
              inert={!ringActs}
              onClick={() =>
                go(frame === 'review' ? 'done' : frame === 'complete' ? 'allDone' : 'idle')
              }
            >
              <svg className={styles.arc} viewBox="0 0 32 32" aria-hidden="true" focusable="false">
                <circle cx="16" cy="16" r="14.5" pathLength="100" />
              </svg>
              <span className={styles.spot} aria-hidden="true" />
              <Tick className={styles.tick} />
            </button>
          </div>

          <span className={styles.homeBar} aria-hidden="true" />
          <span className={styles.fingerLayer} aria-hidden="true">
            <span ref={finger} className={styles.finger} />
          </span>
        </div>
      </div>
      <p className={styles.hidden} role="status">
        {message}
      </p>
    </div>
  );
}

/** Every state, in the order the story tells them. */
export const ISLAND_STATES = STATES;
```

### island-actions/icons.tsx

```tsx
// Copyright (c) 2026 Bruno Delorence. MIT License.

/*
 * The island's small drawings, all decorative (the buttons around them carry the names). Each SVG
 * is sized by its class in the CSS, never by attributes, so the lab's 16 px rule for unsized SVGs
 * never reaches them.
 */

/** The assistant's mark: three white dots of three sizes, on the red of the glyph behind them. */
export function DotsMark({ className }: { className: string }) {
  return (
    <svg className={className} viewBox="0 0 30 22" aria-hidden="true" focusable="false">
      <circle cx="7.2" cy="8.4" r="5.4" />
      <circle cx="23.4" cy="7.6" r="4.4" />
      <circle cx="15.6" cy="16.6" r="3.1" />
    </svg>
  );
}

/** An exclamation mark: a tapered bar and a dot. */
export function Bang({ className }: { className: string }) {
  return (
    <svg className={className} viewBox="0 0 8 24" aria-hidden="true" focusable="false">
      <path d="M1.4 2.6a2.6 2.6 0 0 1 5.2 0L5.6 15.2a1.6 1.6 0 0 1-3.2 0Z" />
      <circle cx="4" cy="20.6" r="2.4" />
    </svg>
  );
}

/** The deal's workspace: a lime coin with a black peak and its shadow. */
export function DealMark({ className }: { className: string }) {
  return (
    <svg className={className} viewBox="0 0 22 22" aria-hidden="true" focusable="false">
      <circle cx="11" cy="11" r="11" fill="#e3f31c" />
      <path d="M5.4 15.2 10.6 6.4l2.2 3.8-3 5Z" fill="#111" />
      <path d="M11.8 15.2l2.4-4.1 2.4 4.1Z" fill="#111" opacity="0.55" />
    </svg>
  );
}

/** A letter, for the mail app the assistant used. */
export function MailMark({ className }: { className: string }) {
  return (
    <svg className={className} viewBox="0 0 22 22" aria-hidden="true" focusable="false">
      <circle cx="11" cy="11" r="11" fill="#fff" />
      <rect x="5" y="6.8" width="12" height="8.6" rx="1.6" fill="#ff6a3d" />
      <path d="m5.6 7.6 5.4 4.2 5.4-4.2" fill="none" stroke="#fff" strokeWidth="1.4" />
    </svg>
  );
}

/** A page of a calendar, for the meeting it booked. */
export function CalendarMark({ className }: { className: string }) {
  return (
    <svg className={className} viewBox="0 0 22 22" aria-hidden="true" focusable="false">
      <circle cx="11" cy="11" r="11" fill="#fff" />
      <rect x="5.5" y="5.8" width="11" height="10.8" rx="2" fill="#3c7bf2" />
      <rect x="5.5" y="5.8" width="11" height="3" rx="1.2" fill="#1d4fb8" />
      <path
        d="M8 11h2v2H8zM12 11h2v2h-2z"
        fill="#fff"
        stroke="#fff"
        strokeWidth="0.2"
        strokeLinejoin="round"
      />
    </svg>
  );
}

/** A speech bubble, for the team thread it posted to. */
export function ChatMark({ className }: { className: string }) {
  return (
    <svg className={className} viewBox="0 0 22 22" aria-hidden="true" focusable="false">
      <circle cx="11" cy="11" r="11" fill="#fff" />
      <path
        d="M6 7.6c0-1 .8-1.8 1.8-1.8h6.4c1 0 1.8.8 1.8 1.8v4.6c0 1-.8 1.8-1.8 1.8H10l-3 2.4V14A1.8 1.8 0 0 1 6 12.2Z"
        fill="#9a5cf0"
      />
      <circle cx="8.9" cy="9.9" r="0.95" fill="#fff" />
      <circle cx="11" cy="9.9" r="0.95" fill="#fff" />
      <circle cx="13.1" cy="9.9" r="0.95" fill="#fff" />
    </svg>
  );
}

/** A pencil, pointing down to the left. */
export function Pencil({ className }: { className: string }) {
  return (
    <svg className={className} viewBox="0 0 24 24" aria-hidden="true" focusable="false">
      <path d="M16.6 3.4a2.3 2.3 0 0 1 3.3 3.3l-1.1 1.1-3.3-3.3Z" />
      <path d="M14.4 5.6l3.3 3.3-9.5 9.5-4.6 1.4 1.3-4.7Z" />
    </svg>
  );
}

/** A tick, drawn as one stroke so it can be drawn in. */
export function Tick({ className }: { className: string }) {
  return (
    <svg className={className} viewBox="0 0 24 24" aria-hidden="true" focusable="false">
      <path d="M5.5 12.4l4.3 4.3 8.7-9.2" pathLength="1" />
    </svg>
  );
}

/** Open in the app: a ring with an arrow leaving it. */
export function OpenMark({ className }: { className: string }) {
  return (
    <svg className={className} viewBox="0 0 24 24" aria-hidden="true" focusable="false">
      <path d="M11 4.5a7.5 7.5 0 1 0 8.5 8.5" />
      <path d="M14.5 3.8h5.7v5.7M20 4 12.6 11.4" />
    </svg>
  );
}
```

### island-actions/use-autoplay.ts

```tsx
// Copyright (c) 2026 Bruno Delorence. MIT License.

'use client';

import { useCallback, useEffect, useRef, useState } from 'react';

/*
 * When a demo may play on its own: while part of it is on screen and the tab is visible, never
 * under reduced motion, and not while the reader is using it. `take()` hands it to the reader; it
 * takes back over `idle` ms after their last input. `visible` alone says whether looping art
 * (a pulse, a spinner) is worth running at all.
 */
export function useAutoplay<T extends HTMLElement>(idle = 6000) {
  const ref = useRef<T>(null);
  const [visible, setVisible] = useState(false);
  const [reduced, setReduced] = useState(true);
  const [taken, setTaken] = useState(false);
  const timer = useRef(0);

  useEffect(() => {
    const element = ref.current;
    if (!element) return;
    let onScreen = false;
    const update = () => setVisible(onScreen && !document.hidden);
    const observer = new IntersectionObserver(
      ([entry]) => {
        onScreen = entry.isIntersecting;
        update();
      },
      { threshold: 0.3 },
    );
    observer.observe(element);
    document.addEventListener('visibilitychange', update);
    const motion = window.matchMedia('(prefers-reduced-motion: reduce)');
    const readMotion = () => setReduced(motion.matches);
    readMotion();
    motion.addEventListener('change', readMotion);
    return () => {
      observer.disconnect();
      document.removeEventListener('visibilitychange', update);
      motion.removeEventListener('change', readMotion);
    };
  }, []);

  const take = useCallback(() => {
    setTaken(true);
    window.clearTimeout(timer.current);
    timer.current = window.setTimeout(() => setTaken(false), idle);
  }, [idle]);
  useEffect(() => () => window.clearTimeout(timer.current), []);

  return { ref, take, visible, reduced, playing: visible && !reduced && !taken };
}
```

### island-actions/island-actions.module.css

```css
/* Island actions (island-actions.tsx): the top of a phone on a quiet grey stage, close up, with
   the island at its top. The phone is drawn at its design size (a 390 × 844 screen) and scaled as
   one piece from the stage's own size (a size container; tan(atan2()) of two lengths is their
   ratio as a plain number), so its top fills about four fifths of the stage's width.

   Colours are the tokens below, light-dark(light, dark) where the two differ: the component takes
   the color-scheme it inherits from the page (light unless the page says otherwise), or the one
   its colorScheme prop sets (data-color-scheme). The island and what is drawn on it are the same
   on both: black hardware, lit by the assistant's red, blue and green.

   Memory. The stage is one layout boundary sized from outside. The island's shapes are a handful
   of small absolutely placed boxes inside it; the springs (linear() curves made in the TSX) move
   them, and the words and badges come and go by opacity, blur and scale. */

.root {
  /* The stage, the phone's glass and its rim. */
  --stage: #dbdbdb;
  --glass-1: #eaeaea;
  --glass-2: #e2e2e2;
  --rim: rgb(255 255 255 / 0.95);
  --shade: rgb(0 0 0 / 0.04);
  /* The status bar's words and the home indicator. */
  --status-ink: #0b0b0b;
  /* The same on both schemes: the island and its lights. */
  --island: #0e0e0b;
  --red: #ff1d10;
  --red-top: #ff3d1f;
  --red-bottom: #ff1010;
  --red-ink: #e14135;
  --red-deep: #4d2220;
  --red-edge: #e2453c;
  --red-glow: rgb(228 66 56 / 0.3);
  --blue: #6b72ff;
  --blue-deep: #0e1029;
  --blue-edge: #5d63e6;
  --blue-glow: rgb(102 113 253 / 0.36);
  --green: #02b44b;
  --green-edge: #13b552;
  --ink: #fff;
  --muted: #a3a3a0;
  --focus: #387bff;
  --finger: rgb(120 120 128 / 0.42);
  --finger-edge: rgb(255 255 255 / 0.75);
  position: relative;
  container-type: size;
  contain: size layout;
  width: 100%;
  aspect-ratio: 4 / 3;
  min-height: 300px;
  overflow: hidden;
  overflow: clip;
  border-radius: 18px;
  background: var(--stage);
  font-family:
    -apple-system, BlinkMacSystemFont, 'SF Pro Text', Inter, 'Segoe UI', Roboto, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}
@supports (color: light-dark(#fff, #000)) {
  .root {
    --stage: light-dark(#dbdbdb, #111113);
    --glass-1: light-dark(#eaeaea, #2a2a2d);
    --glass-2: light-dark(#e2e2e2, #232326);
    --rim: light-dark(rgb(255 255 255 / 0.95), rgb(255 255 255 / 0.14));
    --shade: light-dark(rgb(0 0 0 / 0.04), rgb(0 0 0 / 0.4));
    --status-ink: light-dark(#0b0b0b, #f4f4f5);
  }
}
/* The colorScheme prop. Without it, nothing is set: color-scheme is inherited from the page. */
.root[data-color-scheme='light'] {
  color-scheme: light;
}
.root[data-color-scheme='dark'] {
  color-scheme: dark;
}
.root[data-color-scheme='system'] {
  color-scheme: light dark;
}

.defs {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

/* The phone, scaled from the stage: its 390 px top fills 80% of the width (or the height allows
   less), with the island a little above the stage's middle. */
.phone {
  --s: min(tan(atan2(80cqw, 390px)), tan(atan2(100cqh, 250px)));
  position: absolute;
  top: calc(50cqh - 44px * var(--s));
  left: 50%;
  width: 390px;
  height: 844px;
  margin-left: -195px;
  transform-origin: 50% 0;
  scale: var(--s);
}
.screen {
  position: relative;
  width: 390px;
  height: 844px;
  overflow: hidden;
  overflow: clip;
  border-radius: 52px;
  background: linear-gradient(100deg, var(--glass-1), var(--glass-2));
  box-shadow:
    inset 0 0 0 1px var(--rim),
    0 30px 80px -30px var(--shade);
  isolation: isolate;
  user-select: none;
  -webkit-user-select: none;
}

/* The status bar, under the island: it steps aside whenever the island has something to say. */
.status {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 54px;
  color: var(--status-ink);
  pointer-events: none;
  transition: opacity 220ms ease;
}
.status[data-on='true'] {
  transition-delay: 450ms;
}
.status[data-on='false'] {
  opacity: 0;
}
.time {
  position: absolute;
  top: 17px;
  left: 0;
  width: 141px;
  font-size: 17px;
  font-weight: 600;
  line-height: 22px;
  letter-spacing: -0.02em;
  text-align: center;
}
.icons {
  position: absolute;
  top: 22px;
  right: 35px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.signal,
.wifi {
  height: 12px;
  fill: currentColor;
}
.signal {
  width: 18px;
}
.wifi {
  width: 17px;
}
.battery {
  position: relative;
  box-sizing: border-box;
  width: 26px;
  height: 13px;
  padding: 2px;
  border: 1px solid currentColor;
  border-radius: 4px;
  opacity: 0.95;
}
.battery span {
  display: block;
  height: 100%;
  border-radius: 2px;
  background: currentColor;
}
.battery::after {
  content: '';
  position: absolute;
  top: 3.5px;
  right: -3.5px;
  width: 1.5px;
  height: 4px;
  border-radius: 0 1px 1px 0;
  background: currentColor;
  opacity: 0.5;
}
.homeBar {
  position: absolute;
  bottom: 8px;
  left: 50%;
  width: 134px;
  height: 5px;
  margin-left: -67px;
  border-radius: 3px;
  background: var(--status-ink);
  pointer-events: none;
}

/* ---------------------------------------------------------------------------------------- */
/* The island: a zero-size anchor at the top middle; every part is placed from it in px.     */

.island {
  position: absolute;
  top: 13px;
  left: 50%;
  width: 0;
  height: 0;
  color: var(--ink);
}

/* The black, under the goo filter: a box large enough for every shape, so none is clipped. */
.goo {
  position: absolute;
  top: -40px;
  left: -230px;
  width: 460px;
  height: 160px;
  pointer-events: none;
}
.body,
.blob {
  position: absolute;
  margin: 40px 0 0 230px;
  border-radius: 999px;
  background: #000;
}

/* Every shape moves on the pill's spring; on the way out of the plain pill and back, the softer
   one, so the drop stretches its neck before it lets go. */
.body,
.blob,
.rim,
.hit,
.glyph,
.item {
  transition-property: left, top, width, height;
  transition-duration: var(--pop-ms);
  transition-timing-function: var(--pop);
}
.island:is([data-frame='spark'], [data-frame='part'], [data-frame='idle'])
  :is(.body, .blob, .rim, .hit) {
  transition-duration: var(--goo-ms);
  transition-timing-function: var(--goo);
}
.island:is([data-frame='spark'], [data-frame='part'], [data-frame='idle']) .glyph {
  transition-duration: var(--goo-ms), var(--goo-ms), var(--goo-ms), var(--goo-ms), 300ms, 300ms;
  transition-timing-function: var(--goo), var(--goo), var(--goo), var(--goo), ease, ease;
}
/* Budding off: the drop eases out of the pill's end slowly at first, so it draws a long neck. */
.island[data-frame='split'] :is(.body, .blob, .rim, .hit) {
  transition-duration: 820ms;
  transition-timing-function: cubic-bezier(0.55, 0, 0.3, 1);
}
.island[data-frame='split'] .glyph {
  transition-duration: 820ms, 820ms, 820ms, 820ms, 300ms, 300ms;
  transition-timing-function: cubic-bezier(0.55, 0, 0.3, 1);
}

/* A coloured edge and glow around the pill: red for an alert, blue for review, green when done. */
.rim {
  position: absolute;
  border-radius: 999px;
  opacity: 0;
  pointer-events: none;
  transition:
    left var(--pop-ms) var(--pop),
    top var(--pop-ms) var(--pop),
    width var(--pop-ms) var(--pop),
    height var(--pop-ms) var(--pop),
    opacity 260ms ease,
    box-shadow 360ms ease;
}
.island[data-rim='red'] .rim {
  opacity: 1;
  box-shadow:
    inset 0 0 0 1px var(--red-edge),
    0 0 18px 7px var(--red-glow);
  transition-delay: 0s, 0s, 0s, 0s, 120ms, 0s;
  animation: pulse 1.8s ease-in-out 400ms infinite;
}
.island[data-rim='blue'] .rim {
  opacity: 1;
  box-shadow:
    inset 0 0 0 1px var(--blue-edge),
    0 0 18px 7px var(--blue-glow);
}
.island[data-rim='green'] .rim {
  opacity: 1;
  box-shadow:
    inset 0 0 0 1px var(--green-edge),
    0 0 0 0 transparent;
}
@keyframes pulse {
  50% {
    opacity: 0.7;
  }
}
.root[data-paused] .rim {
  animation-play-state: paused;
}

/* The island as a button: a tap opens or closes it. */
.hit {
  position: absolute;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: none;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.hit:focus-visible,
.control:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

/* The assistant's mark: a red pill on the compact island, a red coin on the wide one. */
.glyph {
  position: absolute;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--red-top), var(--red-bottom));
  pointer-events: none;
  transition-property: left, top, width, height, opacity, filter;
  transition-duration: var(--pop-ms), var(--pop-ms), var(--pop-ms), var(--pop-ms), 300ms, 300ms;
}
.glyph[data-on='false'] {
  opacity: 0;
  filter: blur(3px) brightness(0.4);
}
.dots {
  width: 30px;
  height: 22px;
  fill: #fff;
}

/* ---------------------------------------------------------------------------------------- */
/* What is drawn on the island: each shows in some states only. Out: fast, all at once. In:   */
/* once the pill has made room (--enter), in order (--o, and --i for the words), from a blur. */

.item {
  position: absolute;
  box-sizing: border-box;
  display: grid;
  place-items: center;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 999px;
  pointer-events: none;
  transition-property: left, top, width, height, opacity, filter, scale;
  transition-duration:
    var(--pop-ms), var(--pop-ms), var(--pop-ms), var(--pop-ms), 150ms, 150ms, 150ms;
  transition-timing-function: var(--pop), var(--pop), var(--pop), var(--pop), ease, ease, ease;
}
.item[data-on='false'] {
  opacity: 0;
  filter: blur(5px);
  scale: 0.6;
}
.item[data-on='true'] {
  transition-duration:
    var(--pop-ms), var(--pop-ms), var(--pop-ms), var(--pop-ms), 260ms, 300ms, var(--pop-ms);
  transition-timing-function:
    var(--pop), var(--pop), var(--pop), var(--pop), ease, ease, var(--pop);
  transition-delay:
    0s, 0s, 0s, 0s, calc(var(--enter) + var(--o, 0) * 130ms),
    calc(var(--enter) + var(--o, 0) * 130ms), calc(var(--enter) + var(--o, 0) * 130ms);
}
.control[data-on='true'] {
  pointer-events: auto;
  cursor: pointer;
}

/* The compact alert's bang, and the small one under the mark. */
.bangDisc,
.badgeRisk {
  background: var(--red-deep);
}
.bang {
  width: 7px;
  height: 21px;
  fill: var(--red-ink);
}
.bangSmall {
  width: 4.6px;
  height: 13.5px;
  fill: var(--red-ink);
}
.badge {
  background: none;
  transition-property: left, top, width, height, opacity, filter, scale, translate;
}
/* An app badge slides out from under the one before it. */
.badge[data-on='false'] {
  translate: -12px 0;
}
.badge[data-on='true'] {
  translate: 0 0;
  transition-delay:
    0s, 0s, 0s, 0s, calc(var(--enter) + var(--o, 0) * 130ms),
    calc(var(--enter) + var(--o, 0) * 130ms), calc(var(--enter) + var(--o, 0) * 130ms),
    calc(var(--enter) + var(--o, 0) * 130ms);
}
.mark {
  width: 100%;
  height: 100%;
}
.badgeCount {
  background: var(--green);
  font-size: 15px;
  font-weight: 500;
  line-height: 1;
  color: #fff;
}

/* The words: white, then a grey aside. They come in word by word. */
.text {
  display: block;
  font-size: 16px;
  line-height: 22px;
  letter-spacing: -0.01em;
  white-space: nowrap;
  text-align: left;
}
.text[data-on='false'],
.text[data-on='true'] {
  scale: 1;
}
.primary {
  font-weight: 500;
  color: var(--ink);
}
.muted {
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--muted);
}
.word {
  display: inline-block;
  white-space: pre;
  transition:
    opacity 280ms ease,
    filter 320ms ease,
    translate 320ms ease;
  transition-delay: calc(var(--enter) + var(--i) * 60ms);
}
.text[data-on='false'] .word {
  opacity: 0;
  filter: blur(6px);
  translate: 0 1px;
  transition-delay: 0s;
}
/* "All done!" first stands where there is room, then steps left as the app badges come in. */
.slide[data-on='true'] {
  translate: 0 0;
  transition-property: left, top, width, height, opacity, filter, scale, translate;
  transition-duration:
    var(--pop-ms), var(--pop-ms), var(--pop-ms), var(--pop-ms), 260ms, 300ms, var(--pop-ms), 700ms;
  transition-delay:
    0s, 0s, 0s, 0s, var(--enter), var(--enter), var(--enter), calc(var(--enter) + 300ms);
  transition-timing-function:
    var(--pop), var(--pop), var(--pop), var(--pop), ease, ease, ease, cubic-bezier(0.3, 0.8, 0.2, 1);
}
.slide[data-on='false'] {
  translate: 52px 0;
}

/* The controls. A small one reaches a little past its edge, for a finger. */
.control::before {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: inherit;
}
.openButton {
  background: none;
}
.open {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: var(--red);
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.send {
  background: var(--red);
  transition-property: left, top, width, height, opacity, filter, scale, background-color;
}
.send[data-on='true']:active,
.send[data-pressed] {
  background-color: #e8170b;
}
/* Its chevron folds into a slash under a press, as if the arrow were already on its way. */
.chevron {
  position: relative;
  width: 14px;
  height: 18px;
  translate: -2px 0;
}
.chevron span {
  position: absolute;
  left: calc(50% - 1.1px);
  width: 2.2px;
  height: 8.6px;
  border-radius: 2px;
  background: #fff;
  transition: rotate 260ms cubic-bezier(0.3, 0.8, 0.2, 1);
}
.chevron span:first-child {
  top: calc(50% - 8.6px + 1.1px);
  transform-origin: 50% calc(100% - 1.1px);
  rotate: -45deg;
}
.chevron span:last-child {
  top: calc(50% - 1.1px);
  transform-origin: 50% 1.1px;
  rotate: 45deg;
}
@media (hover: hover) {
  .send[data-on='true']:hover .chevron span:last-child {
    rotate: -45deg;
  }
}
.send[data-pressed] .chevron span:last-child,
.send[data-on='true']:active .chevron span:last-child {
  rotate: -45deg;
}
.edit {
  background: var(--blue-deep);
}
.pencil {
  width: 20px;
  height: 20px;
  fill: var(--blue);
}

/* The ring: a spinner while the reply is written, a blue ring with a tick for review, a green one
   once approved, and the green button when the island opens to report. */
.ring {
  background-color: transparent;
  transition-property: left, top, width, height, opacity, filter, scale, background-color;
}
.arc {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  rotate: -90deg;
  fill: none;
  stroke: var(--blue);
  stroke-width: 2.6;
  stroke-linecap: round;
  transition:
    stroke 300ms ease,
    opacity 200ms ease;
}
.arc circle {
  stroke-dasharray: 100 0;
  transition: stroke-dasharray 260ms ease;
}
.ring[data-phase='working'] .arc {
  animation: spin 1.1s linear infinite;
}
.ring[data-phase='working'] .arc circle {
  animation: grow 1.75s cubic-bezier(0.4, 0.1, 0.6, 1) forwards;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
@keyframes grow {
  from {
    stroke-dasharray: 6 94;
  }
  to {
    stroke-dasharray: 86 14;
  }
}
.root[data-paused] .arc,
.root[data-paused] .arc circle {
  animation-play-state: paused;
}
.spot {
  position: absolute;
  top: calc(50% - 1.3px);
  left: calc(50% - 1.3px);
  width: 2.6px;
  height: 2.6px;
  border-radius: 50%;
  background: var(--blue);
  transition: opacity 160ms ease;
}
.ring:not([data-phase='working']) .spot {
  opacity: 0;
}
.tick {
  position: relative;
  width: 52%;
  height: 52%;
  fill: none;
  stroke: var(--blue);
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  transition:
    stroke-dashoffset 340ms cubic-bezier(0.4, 0, 0.2, 1) 120ms,
    stroke 300ms ease;
}
.ring:not([data-phase='working']) .tick {
  stroke-dashoffset: 0;
}
.ring:is([data-phase='done'], [data-phase='complete'], [data-phase='allDone']) .arc {
  stroke: var(--green);
}
.ring:is([data-phase='done'], [data-phase='complete'], [data-phase='allDone']) .tick {
  stroke: var(--green);
}
.ring:is([data-phase='complete'], [data-phase='allDone']) {
  background-color: var(--green);
}
.ring:is([data-phase='complete'], [data-phase='allDone']) .arc {
  opacity: 0;
}
.ring:is([data-phase='complete'], [data-phase='allDone']) .tick {
  width: 56%;
  height: 56%;
  stroke: #fff;
  stroke-width: 2.2;
}
.ring[data-pressed],
.ring[data-on='true']:active {
  scale: 0.92;
}

/* The demo finger: a soft touch mark, as a screen recording shows one. */
.fingerLayer {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.finger {
  position: absolute;
  top: -20px;
  left: -20px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--finger);
  box-shadow: inset 0 0 0 1.5px var(--finger-edge);
  opacity: 0;
  transition: opacity 200ms ease;
}
.finger[data-shown] {
  opacity: 1;
}

.hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

@media (prefers-reduced-motion: reduce) {
  .body,
  .blob,
  .rim,
  .hit,
  .glyph,
  .item,
  .word,
  .status,
  .chevron span,
  .arc,
  .arc circle,
  .tick,
  .spot {
    transition-duration: 0s !important;
    transition-delay: 0s !important;
  }
  .rim,
  .arc,
  .arc circle {
    animation: none !important;
  }
}
```