Hairline stat strip

<p class="hss-cap">Reporting only — the figures are the whole job.</p>
<div class="hss-strip hss-strip--4">
  <div class="hss-tile"><span class="hss-label">Documents</span><span class="hss-fig">1,482</span><span class="hss-sub">this period</span></div>
  <div class="hss-tile"><span class="hss-label">Median time</span><span class="hss-fig">3.2s</span><span class="hss-sub">last 24h</span></div>
  <div class="hss-tile"><span class="hss-label">Clean runs</span><span class="hss-fig">98.4%</span><span class="hss-sub">no retries</span></div>
  <div class="hss-tile"><span class="hss-label">Quality score</span><span class="hss-fig is-missing" aria-label="not available">—</span><span class="hss-sub">not rated yet</span></div>
</div>

<p class="hss-cap">Same strip, working as the filter.</p>
<div class="hss-strip hss-strip--5" role="group" aria-label="Filter downloads by status">
  <button class="hss-tile" type="button" aria-pressed="true" data-status="All"><span class="hss-label">All</span><span class="hss-fig">6</span><span class="hss-sub">downloads</span></button>
  <button class="hss-tile" type="button" aria-pressed="false" data-status="Queued"><span class="hss-label">Queued</span><span class="hss-fig">2</span><span class="hss-sub">downloads</span></button>
  <!-- Downloading, Done, Failed follow the same shape -->
</div>
<ul class="hss-list" aria-live="polite">…</ul>

Colors come from shared theme tokens — --surface, --ink, --border, --accent and friends — so this CSS carries no palette of its own. Use Runnable file to copy the tokens along with it.

.hss-strip {
  display: grid;
  gap: 1px;                      /* the hairline */
  background: var(--border);     /* container paints the line */
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  grid-template-columns: 1fr;
}
@media (min-width: 21rem) { .hss-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 42rem) {
  .hss-strip--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
@media (min-width: 52rem) {
  .hss-strip--5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
}
.hss-tile { background: var(--surface); padding: .9rem 1rem; min-width: 0; text-align: left; border: 0; font: inherit; color: var(--ink); }
.hss-label { display: block; font-family: ui-monospace, monospace; font-size: .8125rem; text-transform: uppercase; color: var(--dim); }
.hss-fig { display: block; font-size: 1.6rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.hss-fig.is-missing { color: var(--dim); }
.hss-sub { display: block; overflow-wrap: anywhere; }
button.hss-tile { cursor: pointer; }
button.hss-tile[aria-pressed="true"] { background: color-mix(in srgb, var(--accent) 14%, var(--surface)); }

const tiles = document.querySelectorAll('.hss-strip--5 .hss-tile');
const rows = document.querySelectorAll('.hss-list li');
const status = document.querySelector('.hss-status');

tiles.forEach((tile) => {
  tile.addEventListener('click', () => {
    const wasOn = tile.getAttribute('aria-pressed') === 'true';
    const value = wasOn ? 'All' : tile.dataset.status;
    tiles.forEach((other) => other.setAttribute('aria-pressed', String(other.dataset.status === value)));
    let shown = 0;
    rows.forEach((row) => {
      row.hidden = value !== 'All' && row.dataset.status !== value;
      if (!row.hidden) shown += 1;
    });
    status.textContent = value === 'All'
      ? `Showing all ${rows.length} downloads.`
      : `Filtered to ${value}: ${shown} of ${rows.length}. Press the lit tile again to clear.`;
  });
});