[INIT] svelte frontend demo app

This commit is contained in:
Marie Birner
2023-06-16 20:11:42 +02:00
parent 9bdbfdaedb
commit 00afae10e1
38 changed files with 19776 additions and 0 deletions

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<script>
import Header from './Header.svelte';
import './styles.css';
</script>
<div class="app">
<Header />
<main>
<slot />
</main>
<footer>
<p>visit <a href="https://kit.svelte.dev">kit.svelte.dev</a> to learn SvelteKit</p>
</footer>
</div>
<style>
.app {
display: flex;
flex-direction: column;
min-height: 100vh;
}
main {
flex: 1;
display: flex;
flex-direction: column;
padding: 1rem;
width: 100%;
max-width: 64rem;
margin: 0 auto;
box-sizing: border-box;
}
footer {
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
padding: 12px;
}
footer a {
font-weight: bold;
}
@media (min-width: 480px) {
footer {
padding: 12px 0;
}
}
</style>

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<script>
import Counter from './Counter.svelte';
import welcome from '$lib/images/svelte-welcome.webp';
import welcome_fallback from '$lib/images/svelte-welcome.png';
</script>
<svelte:head>
<title>Home</title>
<meta name="description" content="Svelte demo app" />
</svelte:head>
<section>
<h1>
<span class="welcome">
<picture>
<source srcset={welcome} type="image/webp" />
<img src={welcome_fallback} alt="Welcome" />
</picture>
</span>
to your new<br />SvelteKit app
</h1>
<h2>
try editing <strong>src/routes/+page.svelte</strong>
</h2>
<Counter />
</section>
<style>
section {
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
flex: 0.6;
}
h1 {
width: 100%;
}
.welcome {
display: block;
position: relative;
width: 100%;
height: 0;
padding: 0 0 calc(100% * 495 / 2048) 0;
}
.welcome img {
position: absolute;
width: 100%;
height: 100%;
top: 0;
display: block;
}
</style>

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// since there's no dynamic data here, we can prerender
// it so that it gets served as a static asset in production
export const prerender = true;

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<script lang="ts">
import { spring } from 'svelte/motion';
let count = 0;
const displayed_count = spring();
$: displayed_count.set(count);
$: offset = modulo($displayed_count, 1);
function modulo(n: number, m: number) {
// handle negative numbers
return ((n % m) + m) % m;
}
</script>
<div class="counter">
<button on:click={() => (count -= 1)} aria-label="Decrease the counter by one">
<svg aria-hidden="true" viewBox="0 0 1 1">
<path d="M0,0.5 L1,0.5" />
</svg>
</button>
<div class="counter-viewport">
<div class="counter-digits" style="transform: translate(0, {100 * offset}%)">
<strong class="hidden" aria-hidden="true">{Math.floor($displayed_count + 1)}</strong>
<strong>{Math.floor($displayed_count)}</strong>
</div>
</div>
<button on:click={() => (count += 1)} aria-label="Increase the counter by one">
<svg aria-hidden="true" viewBox="0 0 1 1">
<path d="M0,0.5 L1,0.5 M0.5,0 L0.5,1" />
</svg>
</button>
</div>
<style>
.counter {
display: flex;
border-top: 1px solid rgba(0, 0, 0, 0.1);
border-bottom: 1px solid rgba(0, 0, 0, 0.1);
margin: 1rem 0;
}
.counter button {
width: 2em;
padding: 0;
display: flex;
align-items: center;
justify-content: center;
border: 0;
background-color: transparent;
touch-action: manipulation;
font-size: 2rem;
}
.counter button:hover {
background-color: var(--color-bg-1);
}
svg {
width: 25%;
height: 25%;
}
path {
vector-effect: non-scaling-stroke;
stroke-width: 2px;
stroke: #444;
}
.counter-viewport {
width: 8em;
height: 4em;
overflow: hidden;
text-align: center;
position: relative;
}
.counter-viewport strong {
position: absolute;
display: flex;
width: 100%;
height: 100%;
font-weight: 400;
color: var(--color-theme-1);
font-size: 4rem;
align-items: center;
justify-content: center;
}
.counter-digits {
position: absolute;
width: 100%;
height: 100%;
}
.hidden {
top: -100%;
user-select: none;
}
</style>

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<script>
import { page } from '$app/stores';
import logo from '$lib/images/svelte-logo.svg';
import github from '$lib/images/github.svg';
</script>
<header>
<div class="corner">
<a href="https://kit.svelte.dev">
<img src={logo} alt="SvelteKit" />
</a>
</div>
<nav>
<svg viewBox="0 0 2 3" aria-hidden="true">
<path d="M0,0 L1,2 C1.5,3 1.5,3 2,3 L2,0 Z" />
</svg>
<ul>
<li aria-current={$page.url.pathname === '/' ? 'page' : undefined}>
<a href="/">Home</a>
</li>
<li aria-current={$page.url.pathname === '/about' ? 'page' : undefined}>
<a href="/about">About</a>
</li>
<li aria-current={$page.url.pathname.startsWith('/sverdle') ? 'page' : undefined}>
<a href="/sverdle">Sverdle</a>
</li>
</ul>
<svg viewBox="0 0 2 3" aria-hidden="true">
<path d="M0,0 L0,3 C0.5,3 0.5,3 1,2 L2,0 Z" />
</svg>
</nav>
<div class="corner">
<a href="https://github.com/sveltejs/kit">
<img src={github} alt="GitHub" />
</a>
</div>
</header>
<style>
header {
display: flex;
justify-content: space-between;
}
.corner {
width: 3em;
height: 3em;
}
.corner a {
display: flex;
align-items: center;
justify-content: center;
width: 100%;
height: 100%;
}
.corner img {
width: 2em;
height: 2em;
object-fit: contain;
}
nav {
display: flex;
justify-content: center;
--background: rgba(255, 255, 255, 0.7);
}
svg {
width: 2em;
height: 3em;
display: block;
}
path {
fill: var(--background);
}
ul {
position: relative;
padding: 0;
margin: 0;
height: 3em;
display: flex;
justify-content: center;
align-items: center;
list-style: none;
background: var(--background);
background-size: contain;
}
li {
position: relative;
height: 100%;
}
li[aria-current='page']::before {
--size: 6px;
content: '';
width: 0;
height: 0;
position: absolute;
top: 0;
left: calc(50% - var(--size));
border: var(--size) solid transparent;
border-top: var(--size) solid var(--color-theme-1);
}
nav a {
display: flex;
height: 100%;
align-items: center;
padding: 0 0.5rem;
color: var(--color-text);
font-weight: 700;
font-size: 0.8rem;
text-transform: uppercase;
letter-spacing: 0.1em;
text-decoration: none;
transition: color 0.2s linear;
}
a:hover {
color: var(--color-theme-1);
}
</style>

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<svelte:head>
<title>About</title>
<meta name="description" content="About this app" />
</svelte:head>
<div class="text-column">
<h1>About this app</h1>
<p>
This is a <a href="https://kit.svelte.dev">SvelteKit</a> app. You can make your own by typing the
following into your command line and following the prompts:
</p>
<pre>npm create svelte@latest</pre>
<p>
The page you're looking at is purely static HTML, with no client-side interactivity needed.
Because of that, we don't need to load any JavaScript. Try viewing the page's source, or opening
the devtools network panel and reloading.
</p>
<p>
The <a href="/sverdle">Sverdle</a> page illustrates SvelteKit's data loading and form handling. Try
using it with JavaScript disabled!
</p>
</div>

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import { dev } from '$app/environment';
// we don't need any JS on this page, though we'll load
// it in dev so that we get hot module replacement
export const csr = dev;
// since there's no dynamic data here, we can prerender
// it so that it gets served as a static asset in production
export const prerender = true;

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@import '@fontsource/fira-mono';
:root {
--font-body: Arial, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu,
Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
--font-mono: 'Fira Mono', monospace;
--color-bg-0: rgb(202, 216, 228);
--color-bg-1: hsl(209, 36%, 86%);
--color-bg-2: hsl(224, 44%, 95%);
--color-theme-1: #ff3e00;
--color-theme-2: #4075a6;
--color-text: rgba(0, 0, 0, 0.7);
--column-width: 42rem;
--column-margin-top: 4rem;
font-family: var(--font-body);
color: var(--color-text);
}
body {
min-height: 100vh;
margin: 0;
background-attachment: fixed;
background-color: var(--color-bg-1);
background-size: 100vw 100vh;
background-image: radial-gradient(
50% 50% at 50% 50%,
rgba(255, 255, 255, 0.75) 0%,
rgba(255, 255, 255, 0) 100%
),
linear-gradient(180deg, var(--color-bg-0) 0%, var(--color-bg-1) 15%, var(--color-bg-2) 50%);
}
h1,
h2,
p {
font-weight: 400;
}
p {
line-height: 1.5;
}
a {
color: var(--color-theme-1);
text-decoration: none;
}
a:hover {
text-decoration: underline;
}
h1 {
font-size: 2rem;
text-align: center;
}
h2 {
font-size: 1rem;
}
pre {
font-size: 16px;
font-family: var(--font-mono);
background-color: rgba(255, 255, 255, 0.45);
border-radius: 3px;
box-shadow: 2px 2px 6px rgb(255 255 255 / 25%);
padding: 0.5em;
overflow-x: auto;
color: var(--color-text);
}
.text-column {
display: flex;
max-width: 48rem;
flex: 0.6;
flex-direction: column;
justify-content: center;
margin: 0 auto;
}
input,
button {
font-size: inherit;
font-family: inherit;
}
button:focus:not(:focus-visible) {
outline: none;
}
@media (min-width: 720px) {
h1 {
font-size: 2.4rem;
}
}
.visually-hidden {
border: 0;
clip: rect(0 0 0 0);
height: auto;
margin: 0;
overflow: hidden;
padding: 0;
position: absolute;
width: 1px;
white-space: nowrap;
}

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import { fail } from '@sveltejs/kit';
import { Game } from './game';
import type { PageServerLoad, Actions } from './$types';
export const load = (({ cookies }) => {
const game = new Game(cookies.get('sverdle'));
return {
/**
* The player's guessed words so far
*/
guesses: game.guesses,
/**
* An array of strings like '__x_c' corresponding to the guesses, where 'x' means
* an exact match, and 'c' means a close match (right letter, wrong place)
*/
answers: game.answers,
/**
* The correct answer, revealed if the game is over
*/
answer: game.answers.length >= 6 ? game.answer : null
};
}) satisfies PageServerLoad;
export const actions = {
/**
* Modify game state in reaction to a keypress. If client-side JavaScript
* is available, this will happen in the browser instead of here
*/
update: async ({ request, cookies }) => {
const game = new Game(cookies.get('sverdle'));
const data = await request.formData();
const key = data.get('key');
const i = game.answers.length;
if (key === 'backspace') {
game.guesses[i] = game.guesses[i].slice(0, -1);
} else {
game.guesses[i] += key;
}
cookies.set('sverdle', game.toString());
},
/**
* Modify game state in reaction to a guessed word. This logic always runs on
* the server, so that people can't cheat by peeking at the JavaScript
*/
enter: async ({ request, cookies }) => {
const game = new Game(cookies.get('sverdle'));
const data = await request.formData();
const guess = data.getAll('guess') as string[];
if (!game.enter(guess)) {
return fail(400, { badGuess: true });
}
cookies.set('sverdle', game.toString());
},
restart: async ({ cookies }) => {
cookies.delete('sverdle');
}
} satisfies Actions;

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<script lang="ts">
import { confetti } from '@neoconfetti/svelte';
import { enhance } from '$app/forms';
import type { PageData, ActionData } from './$types';
import { reduced_motion } from './reduced-motion';
export let data: PageData;
export let form: ActionData;
/** Whether or not the user has won */
$: won = data.answers.at(-1) === 'xxxxx';
/** The index of the current guess */
$: i = won ? -1 : data.answers.length;
/** Whether the current guess can be submitted */
$: submittable = data.guesses[i]?.length === 5;
/**
* A map of classnames for all letters that have been guessed,
* used for styling the keyboard
*/
let classnames: Record<string, 'exact' | 'close' | 'missing'>;
/**
* A map of descriptions for all letters that have been guessed,
* used for adding text for assistive technology (e.g. screen readers)
*/
let description: Record<string, string>;
$: {
classnames = {};
description = {};
data.answers.forEach((answer, i) => {
const guess = data.guesses[i];
for (let i = 0; i < 5; i += 1) {
const letter = guess[i];
if (answer[i] === 'x') {
classnames[letter] = 'exact';
description[letter] = 'correct';
} else if (!classnames[letter]) {
classnames[letter] = answer[i] === 'c' ? 'close' : 'missing';
description[letter] = answer[i] === 'c' ? 'present' : 'absent';
}
}
});
}
/**
* Modify the game state without making a trip to the server,
* if client-side JavaScript is enabled
*/
function update(event: MouseEvent) {
const guess = data.guesses[i];
const key = (event.target as HTMLButtonElement).getAttribute(
'data-key'
);
if (key === 'backspace') {
data.guesses[i] = guess.slice(0, -1);
if (form?.badGuess) form.badGuess = false;
} else if (guess.length < 5) {
data.guesses[i] += key;
}
}
/**
* Trigger form logic in response to a keydown event, so that
* desktop users can use the keyboard to play the game
*/
function keydown(event: KeyboardEvent) {
if (event.metaKey) return;
document
.querySelector(`[data-key="${event.key}" i]`)
?.dispatchEvent(new MouseEvent('click', { cancelable: true }));
}
</script>
<svelte:window on:keydown={keydown} />
<svelte:head>
<title>Sverdle</title>
<meta name="description" content="A Wordle clone written in SvelteKit" />
</svelte:head>
<h1 class="visually-hidden">Sverdle</h1>
<form
method="POST"
action="?/enter"
use:enhance={() => {
// prevent default callback from resetting the form
return ({ update }) => {
update({ reset: false });
};
}}
>
<a class="how-to-play" href="/sverdle/how-to-play">How to play</a>
<div class="grid" class:playing={!won} class:bad-guess={form?.badGuess}>
{#each Array.from(Array(6).keys()) as row (row)}
{@const current = row === i}
<h2 class="visually-hidden">Row {row + 1}</h2>
<div class="row" class:current>
{#each Array.from(Array(5).keys()) as column (column)}
{@const answer = data.answers[row]?.[column]}
{@const value = data.guesses[row]?.[column] ?? ''}
{@const selected = current && column === data.guesses[row].length}
{@const exact = answer === 'x'}
{@const close = answer === 'c'}
{@const missing = answer === '_'}
<div class="letter" class:exact class:close class:missing class:selected>
{value}
<span class="visually-hidden">
{#if exact}
(correct)
{:else if close}
(present)
{:else if missing}
(absent)
{:else}
empty
{/if}
</span>
<input name="guess" disabled={!current} type="hidden" {value} />
</div>
{/each}
</div>
{/each}
</div>
<div class="controls">
{#if won || data.answers.length >= 6}
{#if !won && data.answer}
<p>the answer was "{data.answer}"</p>
{/if}
<button data-key="enter" class="restart selected" formaction="?/restart">
{won ? 'you won :)' : `game over :(`} play again?
</button>
{:else}
<div class="keyboard">
<button data-key="enter" class:selected={submittable} disabled={!submittable}>enter</button>
<button
on:click|preventDefault={update}
data-key="backspace"
formaction="?/update"
name="key"
value="backspace"
>
back
</button>
{#each ['qwertyuiop', 'asdfghjkl', 'zxcvbnm'] as row}
<div class="row">
{#each row as letter}
<button
on:click|preventDefault={update}
data-key={letter}
class={classnames[letter]}
disabled={data.guesses[i].length === 5}
formaction="?/update"
name="key"
value={letter}
aria-label="{letter} {description[letter] || ''}"
>
{letter}
</button>
{/each}
</div>
{/each}
</div>
{/if}
</div>
</form>
{#if won}
<div
style="position: absolute; left: 50%; top: 30%"
use:confetti={{
particleCount: $reduced_motion ? 0 : undefined,
force: 0.7,
stageWidth: window.innerWidth,
stageHeight: window.innerHeight,
colors: ['#ff3e00', '#40b3ff', '#676778']
}}
/>
{/if}
<style>
form {
width: 100%;
height: 100%;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
gap: 1rem;
flex: 1;
}
.how-to-play {
color: var(--color-text);
}
.how-to-play::before {
content: 'i';
display: inline-block;
font-size: 0.8em;
font-weight: 900;
width: 1em;
height: 1em;
padding: 0.2em;
line-height: 1;
border: 1.5px solid var(--color-text);
border-radius: 50%;
text-align: center;
margin: 0 0.5em 0 0;
position: relative;
top: -0.05em;
}
.grid {
--width: min(100vw, 40vh, 380px);
max-width: var(--width);
align-self: center;
justify-self: center;
width: 100%;
height: 100%;
display: flex;
flex-direction: column;
justify-content: flex-start;
}
.grid .row {
display: grid;
grid-template-columns: repeat(5, 1fr);
grid-gap: 0.2rem;
margin: 0 0 0.2rem 0;
}
@media (prefers-reduced-motion: no-preference) {
.grid.bad-guess .row.current {
animation: wiggle 0.5s;
}
}
.grid.playing .row.current {
filter: drop-shadow(3px 3px 10px var(--color-bg-0));
}
.letter {
aspect-ratio: 1;
width: 100%;
display: flex;
align-items: center;
justify-content: center;
text-align: center;
box-sizing: border-box;
text-transform: lowercase;
border: none;
font-size: calc(0.08 * var(--width));
border-radius: 2px;
background: white;
margin: 0;
color: rgba(0, 0, 0, 0.7);
}
.letter.missing {
background: rgba(255, 255, 255, 0.5);
color: rgba(0, 0, 0, 0.5);
}
.letter.exact {
background: var(--color-theme-2);
color: white;
}
.letter.close {
border: 2px solid var(--color-theme-2);
}
.selected {
outline: 2px solid var(--color-theme-1);
}
.controls {
text-align: center;
justify-content: center;
height: min(18vh, 10rem);
}
.keyboard {
--gap: 0.2rem;
position: relative;
display: flex;
flex-direction: column;
gap: var(--gap);
height: 100%;
}
.keyboard .row {
display: flex;
justify-content: center;
gap: 0.2rem;
flex: 1;
}
.keyboard button,
.keyboard button:disabled {
--size: min(8vw, 4vh, 40px);
background-color: white;
color: black;
width: var(--size);
border: none;
border-radius: 2px;
font-size: calc(var(--size) * 0.5);
margin: 0;
}
.keyboard button.exact {
background: var(--color-theme-2);
color: white;
}
.keyboard button.missing {
opacity: 0.5;
}
.keyboard button.close {
border: 2px solid var(--color-theme-2);
}
.keyboard button:focus {
background: var(--color-theme-1);
color: white;
outline: none;
}
.keyboard button[data-key='enter'],
.keyboard button[data-key='backspace'] {
position: absolute;
bottom: 0;
width: calc(1.5 * var(--size));
height: calc(1 / 3 * (100% - 2 * var(--gap)));
text-transform: uppercase;
font-size: calc(0.3 * var(--size));
padding-top: calc(0.15 * var(--size));
}
.keyboard button[data-key='enter'] {
right: calc(50% + 3.5 * var(--size) + 0.8rem);
}
.keyboard button[data-key='backspace'] {
left: calc(50% + 3.5 * var(--size) + 0.8rem);
}
.keyboard button[data-key='enter']:disabled {
opacity: 0.5;
}
.restart {
width: 100%;
padding: 1rem;
background: rgba(255, 255, 255, 0.5);
border-radius: 2px;
border: none;
}
.restart:focus,
.restart:hover {
background: var(--color-theme-1);
color: white;
outline: none;
}
@keyframes wiggle {
0% {
transform: translateX(0);
}
10% {
transform: translateX(-2px);
}
30% {
transform: translateX(4px);
}
50% {
transform: translateX(-6px);
}
70% {
transform: translateX(+4px);
}
90% {
transform: translateX(-2px);
}
100% {
transform: translateX(0);
}
}
</style>

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import { describe, it, expect } from 'vitest';
import { Game } from './game';
describe('game test', () => {
it('returns true when a valid word is entered', () => {
const game = new Game();
expect(game.enter('zorro'.split(''))).toBe(true);
});
});

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import { words, allowed } from './words.server';
export class Game {
index: number;
guesses: string[];
answers: string[];
answer: string;
/**
* Create a game object from the player's cookie, or initialise a new game
*/
constructor(serialized: string | undefined = undefined) {
if (serialized) {
const [index, guesses, answers] = serialized.split('-');
this.index = +index;
this.guesses = guesses ? guesses.split(' ') : [];
this.answers = answers ? answers.split(' ') : [];
} else {
this.index = Math.floor(Math.random() * words.length);
this.guesses = ['', '', '', '', '', ''];
this.answers = [];
}
this.answer = words[this.index];
}
/**
* Update game state based on a guess of a five-letter word. Returns
* true if the guess was valid, false otherwise
*/
enter(letters: string[]) {
const word = letters.join('');
const valid = allowed.has(word);
if (!valid) return false;
this.guesses[this.answers.length] = word;
const available = Array.from(this.answer);
const answer = Array(5).fill('_');
// first, find exact matches
for (let i = 0; i < 5; i += 1) {
if (letters[i] === available[i]) {
answer[i] = 'x';
available[i] = ' ';
}
}
// then find close matches (this has to happen
// in a second step, otherwise an early close
// match can prevent a later exact match)
for (let i = 0; i < 5; i += 1) {
if (answer[i] === '_') {
const index = available.indexOf(letters[i]);
if (index !== -1) {
answer[i] = 'c';
available[index] = ' ';
}
}
}
this.answers.push(answer.join(''));
return true;
}
/**
* Serialize game state so it can be set as a cookie
*/
toString() {
return `${this.index}-${this.guesses.join(' ')}-${this.answers.join(' ')}`;
}
}

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<svelte:head>
<title>How to play Sverdle</title>
<meta name="description" content="How to play Sverdle" />
</svelte:head>
<div class="text-column">
<h1>How to play Sverdle</h1>
<p>
Sverdle is a clone of <a href="https://www.nytimes.com/games/wordle/index.html">Wordle</a>, the
word guessing game. To play, enter a five-letter English word. For example:
</p>
<div class="example">
<span class="close">r</span>
<span class="missing">i</span>
<span class="close">t</span>
<span class="missing">z</span>
<span class="exact">y</span>
</div>
<p>
The <span class="exact">y</span> is in the right place. <span class="close">r</span> and
<span class="close">t</span>
are the right letters, but in the wrong place. The other letters are wrong, and can be discarded.
Let's make another guess:
</p>
<div class="example">
<span class="exact">p</span>
<span class="exact">a</span>
<span class="exact">r</span>
<span class="exact">t</span>
<span class="exact">y</span>
</div>
<p>This time we guessed right! You have <strong>six</strong> guesses to get the word.</p>
<p>
Unlike the original Wordle, Sverdle runs on the server instead of in the browser, making it
impossible to cheat. It uses <code>&lt;form&gt;</code> and cookies to submit data, meaning you can
even play with JavaScript disabled!
</p>
</div>
<style>
span {
display: inline-flex;
justify-content: center;
align-items: center;
font-size: 0.8em;
width: 2.4em;
height: 2.4em;
background-color: white;
box-sizing: border-box;
border-radius: 2px;
border-width: 2px;
color: rgba(0, 0, 0, 0.7);
}
.missing {
background: rgba(255, 255, 255, 0.5);
color: rgba(0, 0, 0, 0.5);
}
.close {
border-style: solid;
border-color: var(--color-theme-2);
}
.exact {
background: var(--color-theme-2);
color: white;
}
.example {
display: flex;
justify-content: flex-start;
margin: 1rem 0;
gap: 0.2rem;
}
.example span {
font-size: 1.4rem;
}
p span {
position: relative;
border-width: 1px;
border-radius: 1px;
font-size: 0.4em;
transform: scale(2) translate(0, -10%);
margin: 0 1em;
}
</style>

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import { dev } from '$app/environment';
// we don't need any JS on this page, though we'll load
// it in dev so that we get hot module replacement
export const csr = dev;
// since there's no dynamic data here, we can prerender
// it so that it gets served as a static asset in production
export const prerender = true;

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import { readable } from 'svelte/store';
import { browser } from '$app/environment';
const reduced_motion_query = '(prefers-reduced-motion: reduce)';
const get_initial_motion_preference = () => {
if (!browser) return false;
return window.matchMedia(reduced_motion_query).matches;
};
export const reduced_motion = readable(get_initial_motion_preference(), (set) => {
if (browser) {
const set_reduced_motion = (event: MediaQueryListEvent) => {
set(event.matches);
};
const media_query_list = window.matchMedia(reduced_motion_query);
media_query_list.addEventListener('change', set_reduced_motion);
return () => {
media_query_list.removeEventListener('change', set_reduced_motion);
};
}
});

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