Hairline stat strip

<p class="cap">Reporting only — the figures are the whole job.</p>
<div class="hss-strip four">
  <div class="hss-tile"><span class="l">Documents</span><span class="v">1,482</span><span class="s">this period</span></div>
  <div class="hss-tile"><span class="l">Median time</span><span class="v">3.2s</span><span class="s">last 24h</span></div>
  <div class="hss-tile"><span class="l">Clean runs</span><span class="v">98.4%</span><span class="s">no retries</span></div>
  <div class="hss-tile"><span class="l">Quality score</span><span class="v none">—</span><span class="s">not rated yet</span></div>
</div>
<p class="cap">Same strip, working as the filter. Press a tile to narrow the list; press it again to clear.</p>
<div class="hss-strip five" data-hss-filter>
  <button class="hss-tile" type="button" data-state="All" aria-pressed="false"><span class="l">All</span><span class="v">6</span><span class="s">downloads</span></button>
  <button class="hss-tile" type="button" data-state="Queued" aria-pressed="false"><span class="l">Queued</span><span class="v">2</span><span class="s">downloads</span></button>
  <button class="hss-tile" type="button" data-state="Downloading" aria-pressed="false"><span class="l">Downloading</span><span class="v">1</span><span class="s">download</span></button>
  <button class="hss-tile" type="button" data-state="Done" aria-pressed="false"><span class="l">Done</span><span class="v">2</span><span class="s">downloads</span></button>
  <button class="hss-tile" type="button" data-state="Failed" aria-pressed="false"><span class="l">Failed</span><span class="v">1</span><span class="s">download</span></button>
</div>
<ul class="dl-list">
  <li data-state="Done"><span>Bicycle drivetrain teardown</span><span class="st">Done</span></li>
  <li data-state="Downloading"><span>Kiln firing, part three</span><span class="st">Downloading</span></li>
  <li data-state="Queued"><span>Field recording — marsh at dawn</span><span class="st">Queued</span></li>
  <li data-state="Done"><span>Lathe restoration, episode 12</span><span class="st">Done</span></li>
  <li data-state="Failed"><span>Sourdough hydration tests</span><span class="st">Failed</span></li>
  <li data-state="Queued"><span>Bookbinding: the long stitch</span><span class="st">Queued</span></li>
</ul>
<p class="dl-status" role="status" aria-live="polite">Showing all 6 downloads.</p>

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;
  background: var(--border);
  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 { grid-template-columns: repeat(4, minmax(0, 1fr)); } }

.hss-tile { background: var(--surface); padding: 0.875rem 1rem; min-width: 0; }
.hss-tile .l { font: 0.8125rem/1.2 ui-monospace, monospace; text-transform: uppercase; color: var(--dim); }
.hss-tile .v { display: block; font-size: 1.6rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.hss-tile .v.none { color: var(--dim); }
button.hss-tile[aria-pressed="true"] {
  background: color-mix(in srgb, var(--accent) 14%, var(--surface));
}

:root { --ground:#eef0f3; --surface:#ffffff; --surface-2:#f5f7f9; --border:#d2d8e0; --ink:#161b22; --dim:#56606e; --accent:#364f6a; --radius:10px; }
@media (prefers-color-scheme: dark) { :root { --ground:#10141a; --surface:#191f27; --surface-2:#202834; --border:#2c3743; --ink:#e6ecf3; --dim:#97a4b4; --accent:#6f92bd; } }

const strip = document.querySelector('[data-hss-filter]');
const rows = document.querySelectorAll('.dl-list li');
const status = document.querySelector('.dl-status');

strip.addEventListener('click', (event) => {
  const tile = event.target.closest('button.hss-tile');
  if (!tile) return;
  const wasOn = tile.getAttribute('aria-pressed') === 'true';
  const state = wasOn ? 'All' : tile.dataset.state;
  strip.querySelectorAll('button.hss-tile').forEach((other) => {
    other.setAttribute('aria-pressed', String(!wasOn && other === tile && state !== 'All'));
  });
  let shown = 0;
  rows.forEach((row) => {
    const visible = state === 'All' || row.dataset.state === state;
    row.hidden = !visible;
    if (visible) shown += 1;
  });
  status.textContent = state === 'All'
    ? 'Showing all 6 downloads.'
    : `Filtered to ${state}: ${shown} of 6. Press the lit tile again to clear.`;
});