3D Press Button

<button class="kodza-press-button" type="button">
  <span class="kodza-press-button__face">Deploy on Friday</span>
</button>

<button class="kodza-press-button kodza-press-button--offset" type="button">
  <span class="kodza-press-button__face">Push to prod</span>
</button>

<button class="kodza-press-button" type="button" aria-pressed="false">
  <span class="kodza-press-button__face">
    <span class="kodza-press-button__dot" aria-hidden="true"></span>
    Mute Slack
  </span>
</button>

/* Kodza License: free to use, client work included. Not to resell or redistribute, ported or not: https://kodza.dev/docs/#print-license */
/* Kodza — 3D Press Button
   A button with real thickness: the face sinks into its base when pressed, every tap goes all
   the way down, and it springs back with a small bounce.
   Everything is tuned with the --kz-press-* variables. */
.kodza-press-button {
  --kz-press-face: #ffffff;
  --kz-press-fg: #0a0a0a;
  --kz-press-edge: #0a0a0a; /* the thickness, and the outline of the face */
  --kz-press-focus: #0a0a0a;
  --kz-press-line: 1.5px;
  --kz-press-radius: 999px;
  --kz-press-height: 52px;
  --kz-press-pad-x: 28px;
  --kz-press-gap: 10px;
  --kz-press-depth-x: 0px;
  --kz-press-depth-y: 6px;
  --kz-press-lift: calc(1 / 3); /* share of the depth the face rises on hover (2px of 6: whole pixels, crisp text) */
  --kz-press-latch: 0.5; /* how far down a latched toggle stays (3px of 6: whole pixels, crisp text) */
  --kz-press-down: 0.08s cubic-bezier(0.3, 0, 0.6, 1);
  --kz-press-up: 0.45s cubic-bezier(0.3, 1.9, 0.5, 1);
  --kz-press-hover: 0.25s cubic-bezier(0.22, 1, 0.36, 1);

  position: relative;
  display: inline-grid;
  box-sizing: border-box;
  margin: 0;
  /* The room the face travels into */
  padding: 0 var(--kz-press-depth-x) var(--kz-press-depth-y) 0;
  border: 0;
  border-radius: var(--kz-press-radius);
  background: none;
  color: var(--kz-press-fg);
  font: inherit;
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.01em;
  text-decoration: none;
  white-space: nowrap;
  vertical-align: middle;
  cursor: pointer;
  isolation: isolate;
  user-select: none;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.kodza-press-button:focus-visible {
  outline: 2px solid var(--kz-press-focus);
  outline-offset: 4px;
}

/* The base: the same shape as the face, pushed down by the depth. What shows below the face
   is the thickness. */
.kodza-press-button::before {
  content: "";
  grid-area: 1 / 1;
  z-index: -1;
  border-radius: var(--kz-press-radius);
  background: var(--kz-press-edge);
  transform: translate(var(--kz-press-depth-x), var(--kz-press-depth-y));
}

/* The face is filled with the edge color and its inner layer, cut in by the line width, brings
   the face color: the outer edge matches the base, so no hairline shows between them (an inset
   shadow leaves one). Both edges of the line are cut by clip-path, which is not snapped to whole
   pixels like a border, an inset or a background: the line stays even wherever the face lands */
.kodza-press-button__face {
  position: relative;
  grid-area: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--kz-press-gap);
  box-sizing: border-box;
  height: var(--kz-press-height);
  padding: 0 var(--kz-press-pad-x);
  border-radius: var(--kz-press-radius);
  background: var(--kz-press-edge);
  box-shadow: 0 0 0 1px var(--kz-press-edge); /* covers the snapped background, the clip cuts it */
  clip-path: inset(0 round var(--kz-press-radius));
  isolation: isolate;
  transition: transform var(--kz-press-hover);
}

.kodza-press-button__face::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--kz-press-face);
  clip-path: inset(var(--kz-press-line) round calc(var(--kz-press-radius) - var(--kz-press-line)));
}

/* Hover: the face rises a little, the thickness grows */
@media (hover: hover) {
  .kodza-press-button:hover .kodza-press-button__face {
    transform: translate(calc(var(--kz-press-depth-x) * var(--kz-press-lift) * -1), calc(var(--kz-press-depth-y) * var(--kz-press-lift) * -1));
  }
}

/* A latching toggle (aria-pressed="true") stays part of the way down */
.kodza-press-button[aria-pressed="true"] .kodza-press-button__face {
  transform: translate(calc(var(--kz-press-depth-x) * var(--kz-press-latch)), calc(var(--kz-press-depth-y) * var(--kz-press-latch)));
}

/* Pressed: the face meets its base, fast */
.kodza-press-button.is-pressed .kodza-press-button__face,
.kodza-press-button:not(.is-ready):active .kodza-press-button__face {
  transform: translate(var(--kz-press-depth-x), var(--kz-press-depth-y));
  transition: transform var(--kz-press-down);
}

/* Let go: it springs back past its rest, then settles */
.kodza-press-button.is-releasing .kodza-press-button__face {
  transition: transform var(--kz-press-up);
}

/* Disabled: flush with its base, it cannot go any lower */
.kodza-press-button:disabled,
.kodza-press-button[aria-disabled="true"] {
  cursor: not-allowed;
}

.kodza-press-button:disabled .kodza-press-button__face,
.kodza-press-button[aria-disabled="true"] .kodza-press-button__face {
  transform: translate(var(--kz-press-depth-x), var(--kz-press-depth-y));
  color: color-mix(in srgb, currentColor 45%, transparent);
}

/* The toggle's light: an empty ring that fills while it is on */
.kodza-press-button__dot {
  position: relative;
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  box-shadow: inset 0 0 0 var(--kz-press-line) currentColor;
}

.kodza-press-button__dot::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: currentColor;
  transform: scale(0);
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

.kodza-press-button[aria-pressed="true"] .kodza-press-button__dot::after {
  transform: scale(1);
}

/* Offset variant: a brutalist slab, its hard shadow cast down and to the right */
.kodza-press-button--offset {
  --kz-press-radius: 12px;
  --kz-press-depth-x: 6px;
  --kz-press-depth-y: 6px;
}

@media (prefers-reduced-motion: reduce) {
  .kodza-press-button__face,
  .kodza-press-button__dot::after {
    transition-duration: 0.01ms !important;
  }
}

/* Theming example — on a dark background:
.dark-section .kodza-press-button {
  --kz-press-face: #161616;
  --kz-press-fg: #f2f2f0;
  --kz-press-edge: #3d3d3c;
  --kz-press-focus: #f2f2f0;
}
*/

/* kodza-guard 834988a88cc3 — generated by Kodza, do not edit.
   Theme guard: keeps a site's own CSS (WordPress themes, Bootstrap, CSS resets…) off this
   component. :not(#_) is always true and weighs as much as an id, so these lines win over
   theme rules made of classes and tags. Customise the component through its --kz-* variables. */

/* What the browser gives, where the component sets it only in some states: at the lowest weight, so its own rules below put it back */

:where(.kodza-press-button):not(#_) {
  outline: revert;
  outline-offset: revert;
}

/* What the browser gives, on everything the component leaves to it */

.kodza-press-button:not(#_) {
  transition: revert;
  list-style: revert;
  box-shadow: revert;
  appearance: revert;
  max-height: revert;
  text-transform: revert;
  text-underline-offset: revert;
  text-align: revert;
  text-indent: revert;
  text-shadow: revert;
  min-height: revert;
}

.kodza-press-button__dot:not(#_) {
  box-sizing: revert;
}

.kodza-press-button:not(#_)::before,
.kodza-press-button__face:not(#_)::before,
.kodza-press-button__dot:not(#_)::after {
  box-sizing: revert;
}

/* The component's own rules, one step stronger: real buttons and fields, what it sets on tags themes style (links, lists, headings, images…), and the root width (a theme may narrow it, never widen it) */

.kodza-press-button:not(#_) {
  position: relative;
  display: inline-grid;
  box-sizing: border-box;
  margin: 0;
  padding: 0 var(--kz-press-depth-x) var(--kz-press-depth-y) 0;
  border: 0;
  border-radius: var(--kz-press-radius);
  background: none;
  color: var(--kz-press-fg);
  font: inherit;
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.01em;
  text-decoration: none;
  white-space: nowrap;
  vertical-align: middle;
  cursor: pointer;
  isolation: isolate;
  user-select: none;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.kodza-press-button:focus-visible:not(#_) {
  outline: 2px solid var(--kz-press-focus);
  outline-offset: 4px;
}

.kodza-press-button:not(#_)::before {
  content: "";
  grid-area: 1 / 1;
  z-index: -1;
  border-radius: var(--kz-press-radius);
  background: var(--kz-press-edge);
  transform: translate(var(--kz-press-depth-x), var(--kz-press-depth-y));
}

.kodza-press-button:disabled:not(#_),
.kodza-press-button[aria-disabled="true"]:not(#_) {
  cursor: not-allowed;
}

// Kodza License: free to use, client work included. Not to resell or redistribute, ported or not: https://kodza.dev/docs/#print-license
// Kodza — 3D Press Button
// Presses the face for the pointer, Enter and Space alike, makes every tap go all the way down
// before it springs back, and flips aria-pressed on a latching toggle.
(() => {
  const SELECTOR = '.kodza-press-button';
  const TRAVEL = 110; // ms: a tap shorter than the way down (80 ms, plus a late frame) still reaches the bottom
  const SPRING = 450; // ms: the bounce back, as long as --kz-press-up

  // One instance. Everything it starts is tied to `signal`, so kodza:destroy stops it all
  function mount(button, signal) {
    let downAt = 0;
    let timer = 0;
    let key = null;
    let pointer = null; // listens for the end of a pointer press, wherever the pointer goes
    signal.addEventListener('abort', () => {
      clearTimeout(timer);
      pointer?.abort();
    });

    const disabled = () => button.disabled || button.getAttribute('aria-disabled') === 'true';

    const press = () => {
      clearTimeout(timer);
      button.classList.remove('is-releasing');
      button.classList.add('is-pressed');
      downAt = performance.now();
    };

    const release = () => {
      if (!button.classList.contains('is-pressed')) return;
      clearTimeout(timer);
      // A quick tap still lands at the bottom before the spring sends it back up
      timer = setTimeout(() => {
        button.classList.remove('is-pressed');
        button.classList.add('is-releasing');
        timer = setTimeout(() => button.classList.remove('is-releasing'), SPRING);
      }, Math.max(0, TRAVEL - (performance.now() - downAt)));
    };

    button.addEventListener('pointerdown', (event) => {
      if (event.button !== 0 || disabled()) return;
      press();
      pointer?.abort();
      pointer = new AbortController();
      const end = () => {
        pointer.abort();
        release();
      };
      document.addEventListener('pointerup', end, { signal: pointer.signal });
      document.addEventListener('pointercancel', end, { signal: pointer.signal });
    }, { signal });

    // The keyboard presses it too: Enter on links and buttons, Space on buttons
    button.addEventListener('keydown', (event) => {
      if (event.repeat || key || disabled()) return;
      if (event.key === 'Enter' || (event.key === ' ' && button.localName === 'button')) {
        key = event.key;
        press();
      }
    }, { signal });
    button.addEventListener('keyup', (event) => {
      if (event.key !== key) return;
      key = null;
      release();
    }, { signal });
    button.addEventListener('blur', () => {
      if (!key) return;
      key = null;
      release();
    }, { signal });

    // A latching toggle: each press flips it, and the face stays down while it is on
    if (button.hasAttribute('aria-pressed')) {
      button.addEventListener('click', () => {
        if (disabled()) return;
        button.setAttribute('aria-pressed', String(button.getAttribute('aria-pressed') !== 'true'));
      }, { signal });
    }
  }

  // Kodza lifecycle, the same in every component: `kodza:init` starts the instances inside
  // event.detail.root (the whole page by default), `kodza:destroy` stops them and puts their
  // markup back. For themes and apps that swap content without a page load.
  const instances = new WeakMap();
  const find = (scope = document) => [scope, ...scope.querySelectorAll(SELECTOR)].filter((el) => el.matches?.(SELECTOR));
  const init = (scope) => find(scope).forEach((root) => {
    if (root.classList.contains('is-ready')) return; // already running, maybe from another copy of this script
    const controller = new AbortController();
    instances.set(root, { controller, html: root.innerHTML, attrs: [...root.attributes].map((a) => [a.name, a.value]) });
    mount(root, controller.signal);
    root.classList.add('is-ready');
  });
  const destroy = (scope) => find(scope).forEach((root) => {
    const instance = instances.get(root);
    if (!instance) return;
    instances.delete(root);
    instance.controller.abort();
    [...root.attributes].forEach((a) => root.removeAttribute(a.name));
    instance.attrs.forEach(([name, value]) => root.setAttribute(name, value));
    root.innerHTML = instance.html;
  });
  document.addEventListener('kodza:init', (event) => init(event.detail?.root));
  document.addEventListener('kodza:destroy', (event) => destroy(event.detail?.root));
  init();
  // Loaded in <head>, the script runs before the markup exists: once more when it is parsed
  if (document.readyState === 'loading') document.addEventListener('DOMContentLoaded', () => init(), { once: true });
})();

'use client';
// Kodza — 3D Press Button, for React. From https://kodza.dev/components/press-button/
// Kodza License: free to use, client work included. Not to resell or redistribute, ported or not: https://kodza.dev/docs/#print-license
// Next to this file: press-button.css and press-button.js, the component's CSS and JS from Kodza, as they are.
// Yours to edit: the markup is plain JSX below.
// The script changes this markup once React has rendered it (it adds layers, splits text, moves
// nodes), so React must not patch it afterwards. When a prop changes, the key gives React a fresh
// element: kodza:destroy stops the script on the old one, kodza:init starts it on the new one.
import { useRef, useEffect, type ComponentPropsWithoutRef, type ComponentRef, type CSSProperties } from 'react';
import './press-button.css';

type Variant = "offset";

export type 3DPressButtonProps = Omit<ComponentPropsWithoutRef<'button'>, "children" | "variant" | "vars"> & {
  /** Modifier class(es): .kodza-press-button--offset */
  variant?: Variant | Variant[];
  /** Settings, as CSS variables on the root */
  vars?: {
    /** default: #ffffff */
    "--kz-press-face"?: string | number;
    /** default: #0a0a0a */
    "--kz-press-fg"?: string | number;
    /** the thickness, and the outline of the face — default: #0a0a0a */
    "--kz-press-edge"?: string | number;
    /** default: #0a0a0a */
    "--kz-press-focus"?: string | number;
    /** default: 1.5px */
    "--kz-press-line"?: string | number;
    /** default: 999px */
    "--kz-press-radius"?: string | number;
    /** default: 52px */
    "--kz-press-height"?: string | number;
    /** default: 28px */
    "--kz-press-pad-x"?: string | number;
    /** default: 10px */
    "--kz-press-gap"?: string | number;
    /** default: 0px */
    "--kz-press-depth-x"?: string | number;
    /** default: 6px */
    "--kz-press-depth-y"?: string | number;
    /** share of the depth the face rises on hover (2px of 6: whole pixels, crisp text) — default: calc(1 / 3) */
    "--kz-press-lift"?: string | number;
    /** how far down a latched toggle stays (3px of 6: whole pixels, crisp text) — default: 0.5 */
    "--kz-press-latch"?: string | number;
    /** default: 0.08s cubic-bezier(0.3, 0, 0.6, 1) */
    "--kz-press-down"?: string | number;
    /** default: 0.45s cubic-bezier(0.3, 1.9, 0.5, 1) */
    "--kz-press-up"?: string | number;
    /** default: 0.25s cubic-bezier(0.22, 1, 0.36, 1) */
    "--kz-press-hover"?: string | number;
  };
  /** The text, plain: the script reads it and rebuilds the markup around it */
  children?: string;
  className?: string;
};

export function 3DPressButton({ variant, vars, children = "Deploy on Friday", className, style, ...rest }: 3DPressButtonProps) {
  const ref = useRef<ComponentRef<'button'>>(null);
  const classes = ["kodza-press-button", ...([] as string[]).concat(variant ?? []).map((v) => `kodza-press-button--${v}`), className].filter(Boolean).join(' ');
  // Everything the markup is made of: when it changes, React gets a fresh element (see the top)
  const key = JSON.stringify([classes, vars, children, style, rest]);

  // Starts the script on this element once React has rendered it, stops it when it goes
  useEffect(() => {
    const root = ref.current;
    let live = true;
    // @ts-ignore: a plain script, no types to find
    import('./press-button.js').then(() => {
      if (live) document.dispatchEvent(new CustomEvent('kodza:init', { detail: { root } }));
    });
    return () => {
      live = false;
      document.dispatchEvent(new CustomEvent('kodza:destroy', { detail: { root } }));
    };
  }, [key]);

  return (
    <button type="button" key={key} {...rest} className={classes} style={{ ...vars, ...style } as CSSProperties} ref={ref}>
      <span className="kodza-press-button__face">{children}</span>
    </button>
  );
}