<details class="acc-brut" name="acc-brut" open>
  <summary>RAW PRINCIPLES</summary>
  <p>No gradients. No shadows blurred soft. Just hard rectangles, two colors, and intent.</p>
</details>
<details class="acc-brut" name="acc-brut">
  <summary>NO COMPROMISE</summary>
  <p>Function leads form. Form documents function. Decoration earns its keep or it leaves.</p>
</details>
<details class="acc-brut" name="acc-brut">
  <summary>BUILT TO LAST</summary>
  <p>Heavy structure ages well. Trends fade. A clear typographic system stays useful.</p>
</details>

.acc-brut {
  background: #f0eeff; color: #15151d;
  border: 2px solid #15151d;
  box-shadow: 4px 4px 0 #9c7bd6;
  margin-bottom: 12px;
  transition: box-shadow .15s, transform .15s;
}
.acc-brut summary {
  cursor: pointer; list-style: none; padding: 13px 16px;
  font: 800 12px/1 system-ui, sans-serif; letter-spacing: 0.12em;
  border-bottom: 2px solid transparent;
}
.acc-brut summary::-webkit-details-marker { display: none; }
.acc-brut[open] {
  box-shadow: 2px 2px 0 #9c7bd6;
  transform: translate(2px,2px);
}
.acc-brut[open] summary { border-bottom-color: #15151d; }
.acc-brut p {
  margin: 0; padding: 14px 16px;
  font: 12px/1.6 system-ui, sans-serif;
}