Pixel stats

// Copyright (c) 2026 Bruno Delorence. MIT License.'use client';import { useState } from 'react';import { MiniStat, type Figure } from './mini-stat';import { TEXTURES } from './pixels';import { ProgressCard, type Progress } from './progress-card';import { StatCard, type Stat } from './stat-card';import { Testimonial, type Quote } from './testimonial';import styles from './pixel-stats.module.css';/* * Pixel stats: a section of a landing page in which pixels are the material. Figures are drawn * with square tiles of a soft, brushed texture; a tilted selection frame holds them, like a design * tool's; textured squares gather at the cards' edges and twinkle; a pixel hand drags a progress * bar; a portrait is cut in a circle of pixels. * * - Two big cards: a figure that assembles tile by tile and counts up (stat-card.tsx), and a *   progress bar to drag, with its value in tiles (progress-card.tsx). * - A testimonial (testimonial.tsx) and two small stat cards (mini-stat.tsx). * - The tiles' textures are noise made in code and written as small PNGs (pixels.ts), set here as *   custom properties; the figures are drawn from pixel fonts (glyphs.ts), and the bolt and the *   hands from pixel art (sprites.tsx).

/* Pixel stats (pixel-stats.tsx): a stage with two big stat cards, a testimonial and two small   stat cards. The layout follows the stage's own width (a container query): from 600px the big   cards sit side by side above the testimonial and the small cards; narrower, they stack. Each   big card is a container too, and sizes its tiles, frame and type in cqi, so they scale with   it; the testimonial lays itself out for its own width. Nothing clips its content, so a tile that   twinkles on a layer of its own never needs a clipping layer round it.   Colours. Everything but the art takes the tokens below, each light-dark(light, dark): the   component follows 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 big cards are white   by day and near-black at night. The tiles, their textures, the sprites, the progress bar and   the portrait are pixel art: the same in both. */.root,.root * {  box-sizing: border-box;}.root {  /* The stage; the testimonial and the small cards, a step lighter at night. */  --surface: #fff;  --surface-2: #fbfbfc;  /* The words: figures, the quote and its author's name; labels and the author's role. */  --ink: #17171a;  --ink-muted: #74747c;

'use client';import { useId, useState } from 'react';import { SelectionFrame, Tiles, type Tile } from './decoration';import { TALL } from './glyphs';import {  prefersReducedMotion,  tween,  useEntrance,  useInView,  useScheduler,  useTwinkle,} from './motion';import { PixelFigure } from './pixel-figure';import styles from './pixel-stats.module.css';/* * A stat card: a big figure drawn in tiles, held in a tilted selection frame, over a line of * caption, with textured tiles scattered on the card's edges. * * When the card comes into view the figure plays its entrance: the frame swings into place and its * handles settle, the tiles of a zero rise into place one by one, then the figure counts up to its * value, its tiles turning on and off as the digits change. Pressing the card plays it again. * While it is on screen, the edge tiles twinkle now and then.

'use client';import {  useCallback,  useEffect,  useId,  useRef,  useState,  type CSSProperties,  type KeyboardEvent,  type PointerEvent,} from 'react';import { SelectionFrame, Tiles, tilesFromMap, type Tile } from './decoration';import { SQUAT } from './glyphs';import { easeInOut, tween, useEntrance, useInView, useScheduler, useTwinkle } from './motion';import { PixelFigure } from './pixel-figure';import { stairs } from './pixels';import { BOLT, GRABBING_HAND, PixelArt, POINTING_HAND } from './sprites';import { useAutoplay } from './use-autoplay';import styles from './pixel-stats.module.css';/* * A progress card in purple: a pixel bolt, a segmented bar and, under it, its value drawn in * tiles, in a selection frame, with clusters of pixels in the corners and faint grid lines.

'use client';import { useState, type CSSProperties } from 'react';import { useEntrance, useInView } from './motion';import { hash, stairs } from './pixels';import { INKS, Portrait } from './portrait';import styles from './pixel-stats.module.css';/* * A testimonial row: a portrait cut in a circle of pixels, a quote, and who said it. * * The portrait comes in as pixels. When the row comes into view, it shows as a mosaic of 8 × 8 * squares, each the shade of the portrait at that spot, which drop away one by one, at random, to * the illustration beneath. */export type Quote = {  text: string;  name: string;  role: string;};/** The portrait's outline: a circle in pixels, on its 8 × 8 squares. */const PIXEL_CIRCLE = stairs([2, 1], '12.5%');

'use client';import { useId, useState } from 'react';import { Tiles, tilesFromMap, type Corner } from './decoration';import {  prefersReducedMotion,  tween,  useEntrance,  useInView,  useScheduler,  useTwinkle,} from './motion';import type { Tone } from './pixels';import styles from './pixel-stats.module.css';/* * A small stat card: a figure in plain type that counts up from zero when the card comes into * view (and again when pressed), a label, and a few textured pixels in one corner, which * twinkle now and then. */export type Figure = {  value: number;  /** Digits after the decimal point, kept while it counts. */

import type { CSSProperties } from 'react';import { isLit, type PixelFont } from './glyphs';import { hash, type Tone } from './pixels';import styles from './pixel-stats.module.css';/* * A figure drawn in tiles. Each character of `text` is a grid of the font's cells, and each lit * cell a small square with a textured fill. Every cell is there, lit or not, so when a character * changes its cells turn on and off with a transition rather than being replaced. * * Each cell carries its own variety (stable from server to browser, see `hash`): a window into the * texture (--x, --y), a blush (--glow) and the delay it rises with when the figure assembles * (--delay), a sweep from left to right with a little jitter. The card around it sets the phase. *//** Each cell's delay, per column swept, in ms. */const SWEEP = 24;export function PixelFigure({  text,  font,  tone,  seed = 0,}: {

/* * The figures' pixel fonts. A glyph is a grid of cells written as rows of text, `#` for a lit cell * and `.` for an empty one, so it can be read, and redrawn, right here. * * - TALL, 5 × 7: dot-matrix digits for a big figure. * - SQUAT, 3 × 5: chunky digits and a percent sign, for a figure that changes as you watch. */export type PixelFont = {  columns: number;  rows: number;  glyphs: Readonly<Record<string, readonly string[]>>;};export const TALL: PixelFont = {  columns: 5,  rows: 7,  glyphs: {    '0': ['.###.', '#...#', '#...#', '#...#', '#...#', '#...#', '.###.'],    '1': ['..#..', '.##..', '..#..', '..#..', '..#..', '..#..', '.###.'],    '2': ['.###.', '#...#', '....#', '...#.', '..#..', '.#...', '#####'],    '3': ['.###.', '#...#', '....#', '..##.', '....#', '#...#', '.###.'],    '4': ['...#.', '..##.', '.#.#.', '#..#.', '#####', '...#.', '...#.'],    '5': ['#####', '#....', '####.', '....#', '....#', '#...#', '.###.'],

import type { CSSProperties } from 'react';/* * What the pixels are made of. * * - `marble()`: a soft, brushed texture for the tiles, made in code. Fractal noise is swirled, *   turned to a slant and stretched into streaks, mapped onto a ramp of colours, and written as a *   small PNG (64 × 64, in a data URI). It comes out the same on the server and in the browser, *   so it is in the server's HTML before any script runs; the browser decodes it once, and every *   tile shows a window of it, at an offset of its own. * - `hash()`: a number that looks random but is the same on the server and in the browser, so a *   tile's texture and timing never change between the two. * - `stairs()`: a clip-path outline whose corners are cut in steps, as if drawn in pixels. *//** Colours from light to deep: the noise's low values take the first, its high values the last. */type Ramp = readonly string[];type Marble = {  ramp: Ramp;  seed: number;  /** The slant of the streaks, in degrees. */  angle: number;  /** How long and how thin the streaks are, in pixels per cell of noise. */

import type { ReactElement } from 'react';/* * Pixel art drawn from text: one string per row, one character per pixel, `.` for none. A sprite * is an SVG with a rect for each run of one colour along a row, and crisp edges; size it in CSS at * a whole number of screen pixels per pixel to keep it sharp. *//** The colour of each character used in the art below. */const PALETTE: Readonly<Record<string, string>> = {  k: '#0b0b10',  w: '#ffffff',  p: '#a585ff',  l: '#d6c8ff',};export function PixelArt({ art, className }: { art: readonly string[]; className?: string }) {  const width = Math.max(...art.map((row) => row.length));  const rects: ReactElement[] = [];  art.forEach((row, y) => {    for (let x = 0; x < row.length;) {      const ink = row[x];      let length = 1;      while (row[x + length] === ink) length++;

import type { CSSProperties } from 'react';import { hash, type Tone } from './pixels';import styles from './pixel-stats.module.css';/* * What the cards are decorated with: textured tiles scattered at their edges, and the selection * frame, a design tool's, with a square handle at each corner. All of it is decorative * (aria-hidden). */export type Corner = 'tl' | 'tr' | 'bl' | 'br';export type Tile = {  /** The corner it is placed from. */  corner: Corner;  /** Its distance from that corner, in tiles, across and down (or up). */  x: number;  y: number;  tone: Tone;  /** How it twinkles: `dim` fades and shrinks for a moment; `flash` rests hidden and flashes in. */  twinkle?: 'dim' | 'flash';};/**

import { useId } from 'react';/* * The testimonial's portrait: an illustrated person in two inks (indigo on lavender, with the * tints between), so the demo needs no photo and shows no real face. A fine halftone of dots on * the backdrop gives it the look of a duotone print. Swap it for an <img> for a real person. *//** The inks, from the deepest to the lightest. */export const INKS = {  ink: '#23265e',  deep: '#4549b8',  mid: '#8e92e6',  paper: '#c4c7f5',  light: '#eceefe',} as const;export function Portrait({ className }: { className?: string }) {  const dots = useId();  const { ink, deep, mid, paper, light } = INKS;  return (    <svg className={className} viewBox="0 0 96 96" aria-hidden="true">      <defs>        <pattern id={dots} width="3" height="3" patternUnits="userSpaceOnUse">

'use client';import { useCallback, useEffect, useLayoutEffect, useRef, useState, type RefObject } from 'react';/* * The motion the cards share: whether a card is on screen, how it enters, how a number eases to * another, and how tiles twinkle. Nothing here runs while a card is off screen or in a hidden tab, * and nothing moves under reduced motion. */export const prefersReducedMotion = () =>  window.matchMedia('(prefers-reduced-motion: reduce)').matches;export const easeOut = (t: number) => 1 - (1 - t) ** 3;export const easeInOut = (t: number) => (t < 0.5 ? 4 * t ** 3 : 1 - (-2 * t + 2) ** 3 / 2);/** * Whether the element is on screen, in a visible tab. It comes in once `threshold` of it shows, * and goes out once it has left the screen entirely. */export function useInView<T extends Element>(threshold = 0.35) {  const ref = useRef<T>(null);  const [inView, setInView] = useState(false);  useEffect(() => {

'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. */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;