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<main>
  <header><b>INDEX / CARDS</b><span>A SMALL SYSTEM FOR THINGS WORTH KEEPING.</span></header>
  <div class="catalog">
    <aside>
      <h1>The cabinet</h1>
      <p>FIVE NOTES. MANY CONNECTIONS.</p>
      <button data-note="0" aria-pressed="true"><span>001</span>On paying attention</button
      ><button id="change" data-note="1" aria-pressed="false">
        <span>002</span>Useful constraints</button
      ><button data-note="2" aria-pressed="false"><span>003</span>A place to begin</button
      ><button data-note="3" aria-pressed="false"><span>004</span>The value of a draft</button
      ><button data-note="4" aria-pressed="false">
        <span>005</span>Patterns in ordinary things
      </button>
    </aside>
    <section class="card">
      <div class="card-meta">
        <span id="number">001</span><small>FIELD NOTES / PERSONAL INDEX</small>
      </div>
      <h2 id="title">On paying attention</h2>
      <div id="body">
        <p>Attention is a way of making a place larger without changing its size.</p>
        <p>Write down three things you would otherwise have walked past.</p>
      </div>
      <div class="card-bottom">
        <span>CONNECTED TO</span><b id="related">005 / Patterns in ordinary things</b>
      </div>
    </section>
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  <footer class="demo-note">Fictional brand · local interface demo · no information is sent</footer>
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