Drag-to-Reorder Rows

<!-- Drag-to-Reorder Rows — a div-based grid (role="table"/"row"/"cell")
     so the drag lift can animate transform freely. Toggle --drag on the
     grabbed row and --gap on the row that yields space.
     Keyboard: focus a row, Alt+ArrowUp/ArrowDown reorders. -->
<div class="nuda-dd2-table-rows" role="table" aria-label="Reorderable invoices" aria-describedby="dd2-table-rows-desc">
  <p id="dd2-table-rows-desc" class="nuda-dd2-table-rows__sr">Grab a row's handle and press Alt plus Arrow Up or Arrow Down to reorder.</p>
  <div class="nuda-dd2-table-rows__row" role="row">
    <span class="nuda-dd2-table-rows__handle" aria-hidden="true">⋮⋮</span>
    <span class="nuda-dd2-table-rows__cell" role="cell">Invoice #221</span>
  </div>
  <div class="nuda-dd2-table-rows__row nuda-dd2-table-rows__row--gap" role="row">
    <span class="nuda-dd2-table-rows__handle" aria-hidden="true">⋮⋮</span>
    <span class="nuda-dd2-table-rows__cell" role="cell">Invoice #222</span>
  </div>
  <div class="nuda-dd2-table-rows__row nuda-dd2-table-rows__row--drag" role="row" tabindex="0">
    <span class="nuda-dd2-table-rows__handle" aria-hidden="true">⋮⋮</span>
    <span class="nuda-dd2-table-rows__cell" role="cell">Invoice #223</span>
  </div>
</div>

.nuda-dd2-table-rows {
  width: 180px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.nuda-dd2-table-rows__sr {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.nuda-dd2-table-rows__row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  background: #141414;
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.nuda-dd2-table-rows__row:focus-visible {
  outline: 2px solid #e4ff54;
  outline-offset: 2px;
}

.nuda-dd2-table-rows__handle {
  color: #63636e;
  font: 700 9px ui-sans-serif,system-ui;
  letter-spacing: -1px;
}

.nuda-dd2-table-rows__cell {
  font: 500 11px ui-sans-serif,system-ui;
  color: #cfcfcf;
}

.nuda-dd2-table-rows__row--gap {
  animation: nuda-dd2-table-rows-gap 2.7s ease-in-out infinite;
}

.nuda-dd2-table-rows__row--drag {
  position: relative;
  z-index: 2;
  background: #1c1c1c;
  border-bottom-color: transparent;
  animation: nuda-dd2-table-rows-drag 2.7s ease-in-out infinite;
}

.nuda-dd2-table-rows__row--drag .nuda-dd2-table-rows__handle {
  color: #e4ff54;
}

@keyframes nuda-dd2-table-rows-drag {
  0%,14%,100% {
    transform: translateY(0);
    box-shadow: none;
  }
  40%,74% {
    transform: translateY(-12px);
    box-shadow: 0 10px 20px -8px rgba(0,0,0,.5),0 0 0 1px rgba(228,255,84,.4);
  }
}

@keyframes nuda-dd2-table-rows-gap {
  0%,14%,100% {
    transform: translateY(0);
  }
  40%,74% {
    transform: translateY(12px);
  }
}

@media (prefers-reduced-motion:reduce) {
  .nuda-dd2-table-rows__row--gap,.nuda-dd2-table-rows__row--drag {
    animation: none;
  }
}