Pakketten met wel en niet New

<!-- Pakketten met wel en niet · NedDev · eigen werk. -->
<div class="jouw-container">
<div class="xwn">
  <div class="xwn__inner">
    <div class="xwn__head">
      <div><span class="xwn__eyebrow">Rijwielhuis Smit · Groningen</span><h2 class="xwn__h">Fietsabonnement: kies wat u echt gebruikt</h2></div>
      <label class="xwn__toggle"><input type="checkbox"><span class="xwn__sw" aria-hidden="true"></span>Toon alleen verschillen</label>
    </div>
    <div class="xwn__grid">
      <div class="xwn__plan"><b class="xwn__name">Basis</b><div class="xwn__price"><strong>€ 6,50</strong>per maand</div>
        <ul class="xwn__list"><li data-r="beurt" class="y">Jaarlijkse onderhoudsbeurt</li><li data-r="rem" class="y">Remmen en versnelling afstellen</li><li data-r="app" class="y">Online afspraak plannen</li><li data-r="band" class="n">Lekke band gratis plakken</li><li data-r="pech" class="n">Pechhulp binnen de ringweg</li><li data-r="leen" class="n">Leenfiets tijdens reparatie</li><li data-r="onder" class="n">Onderdelen tot € 50 per jaar</li></ul>
        <a href="#" class="xwn__btn">Kies Basis</a></div>
      <div class="xwn__plan xwn__plan--hl"><span class="xwn__flag">Meest gekozen</span><b class="xwn__name">Plus</b><div class="xwn__price"><strong>€ 11,95</strong>per maand</div>
        <ul class="xwn__list"><li data-r="beurt" class="y">Jaarlijkse onderhoudsbeurt</li><li data-r="rem" class="y">Remmen en versnelling afstellen</li><li data-r="app" class="y">Online afspraak plannen</li><li data-r="band" class="y">Lekke band gratis plakken</li><li data-r="pech" class="y">Pechhulp binnen de ringweg</li><li data-r="leen" class="n">Leenfiets tijdens reparatie</li><li data-r="onder" class="n">Onderdelen tot € 50 per jaar</li></ul>
        <a href="#" class="xwn__btn">Kies Plus</a></div>
      <div class="xwn__plan"><b class="xwn__name">Zorgeloos</b><div class="xwn__price"><strong>€ 17,50</strong>per maand</div>
        <ul class="xwn__list"><li data-r="beurt" class="y">Jaarlijkse onderhoudsbeurt</li><li data-r="rem" class="y">Remmen en versnelling afstellen</li><li data-r="app" class="y">Online afspraak plannen</li><li data-r="band" class="y">Lekke band gratis plakken</li><li data-r="pech" class="y">Pechhulp binnen de ringweg</li><li data-r="leen" class="y">Leenfiets tijdens reparatie</li><li data-r="onder" class="y">Onderdelen tot € 50 per jaar</li></ul>
        <a href="#" class="xwn__btn">Kies Zorgeloos</a></div>
    </div>
    <p class="xwn__foot">Maandelijks opzegbaar · e-bikes € 3 per maand extra · prijzen incl. btw</p>
  </div>
</div>
</div>

/* Pakketten met wel en niet · NedDev · eigen werk. */
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.xwn__foot{margin:14px 0 0;font-size:12.5px;color:#7a6c62;text-align:center}
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@media(max-width:820px){.xwn__inner{padding:32px 16px 26px}.xwn__grid{grid-template-columns:1fr;gap:22px}}

// Pakketten met wel en niet · NedDev · eigen werk.
// root = het element waarin de HTML staat
function init(root){
var w=root.querySelector('.xwn');if(!w)return;
var rows={};w.querySelectorAll('.xwn__list li').forEach(function(li){var k=li.getAttribute('data-r');(rows[k]=rows[k]||[]).push(li.className.indexOf('y')>-1?'y':'n');});
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