External Link

<a class="kodza-external-link" href="https://developer.mozilla.org/docs/Web/CSS/:has" target="_blank" rel="noopener">MDN on :has()<span class="kodza-external-link__icon" aria-hidden="true"><svg viewBox="0 0 16 16"><path class="kodza-external-link__shaft" d="M4.5 11.5 11 5" pathLength="1" /><path class="kodza-external-link__head" d="M6 5h5v5" /></svg></span><span class="kodza-external-link__sr"> (opens in a new tab)</span></a>

<a class="kodza-external-link" href="https://github.com/" target="_blank" rel="noopener">Star it on GitHub<span class="kodza-external-link__icon" aria-hidden="true"><svg viewBox="0 0 16 16"><path class="kodza-external-link__shaft" d="M4.5 11.5 11 5" pathLength="1" /><path class="kodza-external-link__head" d="M6 5h5v5" /></svg></span><span class="kodza-external-link__sr"> (opens in a new tab)</span></a>

/* Kodza License: free to use, client work included. Not to resell or redistribute, ported or not: https://kodza.dev/docs/#print-license */
/* Kodza — External Link
   A link that leaves the site says so. On hover a line of ink runs under the words, from the
   first letter to the ↗, and when it gets there the arrow springs out towards the corner,
   its shaft stretching after it, as if the line had launched it. Screen readers hear
   "(opens in a new tab)". Pure CSS. Everything is tuned with the --kz-external-* variables. */
.kodza-external-link {
  --kz-external-text: currentColor;
  --kz-external-line: color-mix(in srgb, currentColor 26%, transparent);
  --kz-external-ink: currentColor;
  --kz-external-thickness: 0.06em;
  --kz-external-size: 0.6em;
  --kz-external-ease: cubic-bezier(0.65, 0, 0.35, 1);
  --kz-external-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  color: var(--kz-external-text);
  text-decoration: none;
  /* Two lines under the words: a faint one, and the ink that runs over it */
  background:
    linear-gradient(var(--kz-external-ink), var(--kz-external-ink)) 0 100% / 0% var(--kz-external-thickness) no-repeat,
    linear-gradient(var(--kz-external-line), var(--kz-external-line)) 0 100% / 100% var(--kz-external-thickness) no-repeat;
  padding-bottom: 0.08em;
  transition: background-size 0.5s var(--kz-external-ease);
}

.kodza-external-link:hover,
.kodza-external-link:focus-visible {
  background-size: 100% var(--kz-external-thickness), 100% var(--kz-external-thickness);
}

.kodza-external-link__icon {
  display: inline-block;
  width: var(--kz-external-size);
  height: var(--kz-external-size);
  margin-left: 0.22em;
  vertical-align: 0.42em;
}

.kodza-external-link__icon svg {
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* The head springs to the corner once the ink arrives; the shaft stretches after it */
.kodza-external-link__head {
  transition: transform 0.35s var(--kz-external-ease);
}

.kodza-external-link__shaft {
  transform-origin: 4.5px 11.5px;
  transition: transform 0.35s var(--kz-external-ease);
}

.kodza-external-link:hover .kodza-external-link__head,
.kodza-external-link:focus-visible .kodza-external-link__head {
  transform: translate(2.5px, -2.5px);
  transition: transform 0.55s var(--kz-external-spring) 0.32s;
}

.kodza-external-link:hover .kodza-external-link__shaft,
.kodza-external-link:focus-visible .kodza-external-link__shaft {
  transform: scale(1.38);
  transition: transform 0.55s var(--kz-external-spring) 0.32s;
}

.kodza-external-link__sr {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.kodza-external-link:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 4px;
  border-radius: 3px;
}

@media (prefers-reduced-motion: reduce) {
  .kodza-external-link,
  .kodza-external-link__head,
  .kodza-external-link__shaft {
    transition-duration: 0.01ms !important;
    transition-delay: 0s !important;
  }
}

/* kodza-guard 39d6c57a59c1 — 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-external-link):not(#_) {
  border-radius: revert;
  outline: revert;
  outline-offset: revert;
}

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

.kodza-external-link:not(#_) {
  border: revert;
  list-style: revert;
  box-sizing: revert;
  position: revert;
  padding-top: revert;
  padding-right: revert;
  padding-left: revert;
  box-shadow: revert;
  appearance: revert;
  max-height: revert;
  font-family: revert;
  font-size: revert;
  font-weight: revert;
  font-style: revert;
  line-height: revert;
  letter-spacing: revert;
  text-transform: revert;
  text-underline-offset: revert;
  text-align: revert;
  text-indent: revert;
  text-shadow: revert;
  vertical-align: revert;
}

.kodza-external-link__icon:not(#_),
.kodza-external-link__shaft:not(#_),
.kodza-external-link__head:not(#_),
.kodza-external-link__sr:not(#_) {
  box-sizing: revert;
}

.kodza-external-link__icon svg:where(:not([class*="kodza-"])):not(#_) {
  border: revert;
  margin: revert;
  padding: revert;
  border-radius: revert;
  outline: revert;
  text-decoration: revert;
  transition: revert;
  list-style: revert;
  box-sizing: revert;
  float: revert;
  position: revert;
  background-color: revert;
  background-image: revert;
  box-shadow: revert;
  outline-offset: revert;
  appearance: revert;
  max-width: revert;
  max-height: revert;
  color: revert;
  font-family: revert;
  font-size: revert;
  font-weight: revert;
  font-style: revert;
  line-height: revert;
  letter-spacing: revert;
  text-transform: revert;
  text-underline-offset: revert;
  text-align: revert;
  text-indent: revert;
  text-shadow: revert;
  vertical-align: revert;
}

.kodza-external-link:not(#_):where(:not([hidden])) {
  display: revert;
}

.kodza-external-link:not(#_):where([hidden]) {
  display: none;
}

/* 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-external-link:not(#_) {
  color: var(--kz-external-text);
  text-decoration: none;
  background: linear-gradient(var(--kz-external-ink), var(--kz-external-ink)) 0 100% / 0% var(--kz-external-thickness) no-repeat,
    linear-gradient(var(--kz-external-line), var(--kz-external-line)) 0 100% / 100% var(--kz-external-thickness) no-repeat;
  padding-bottom: 0.08em;
  transition: background-size 0.5s var(--kz-external-ease);
}

.kodza-external-link:hover:not(#_),
.kodza-external-link:focus-visible:not(#_) {
  background-size: 100% var(--kz-external-thickness), 100% var(--kz-external-thickness);
}

.kodza-external-link__icon svg:not(#_) {
  display: block;
}

.kodza-external-link:focus-visible:not(#_) {
  outline: 2px solid currentColor;
  outline-offset: 4px;
  border-radius: 3px;
}

@media (prefers-reduced-motion: reduce) {
  .kodza-external-link:not(#_) {
    transition-duration: 0.01ms !important;
    transition-delay: 0s !important;
  }
}

'use client';
// Kodza — External Link, for React. From https://kodza.dev/components/external-link/
// 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: external-link.css, the component's CSS from Kodza, as they are.
// Yours to edit: the markup is plain JSX below.
import { useRef, type ComponentPropsWithoutRef, type ComponentRef, type CSSProperties } from 'react';
import './external-link.css';

export type ExternalLinkProps = Omit<ComponentPropsWithoutRef<'a'>, "children" | "vars"> & {
  /** Settings, as CSS variables on the root */
  vars?: {
    /** default: currentColor */
    "--kz-external-text"?: string | number;
    /** default: color-mix(in srgb, currentColor 26%, transparent) */
    "--kz-external-line"?: string | number;
    /** default: currentColor */
    "--kz-external-ink"?: string | number;
    /** default: 0.06em */
    "--kz-external-thickness"?: string | number;
    /** default: 0.6em */
    "--kz-external-size"?: string | number;
    /** default: cubic-bezier(0.65, 0, 0.35, 1) */
    "--kz-external-ease"?: string | number;
    /** default: cubic-bezier(0.34, 1.56, 0.64, 1) */
    "--kz-external-spring"?: string | number;
  };
  className?: string;
};

export function ExternalLink({ vars, className, style, ...rest }: ExternalLinkProps) {
  const ref = useRef<ComponentRef<'a'>>(null);
  const classes = ["kodza-external-link", 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, style, rest]);

  return (
    <a href="https://developer.mozilla.org/docs/Web/CSS/:has" target="_blank" rel="noopener" key={key} {...rest} className={classes} style={{ ...vars, ...style } as CSSProperties} ref={ref}>MDN on :has()<span className="kodza-external-link__icon" aria-hidden="true"> <svg viewBox="0 0 16 16"> <path className="kodza-external-link__shaft" d="M4.5 11.5 11 5" pathLength="1" /> <path className="kodza-external-link__head" d="M6 5h5v5" /> </svg> </span><span className="kodza-external-link__sr"> (opens in a new tab)</span></a>
  );
}