Hairline stat strip

<p class="cap">Reporting only — the figures are the whole job.</p>
<div class="hss-strip">
  <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 dim" aria-label="no value yet">—</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 role="group" aria-label="Filter downloads by status">
  <button class="hss-tile" type="button" data-status="All" aria-pressed="true"><span class="l">All</span><span class="v">6</span><span class="s">downloads</span></button>
  <button class="hss-tile" type="button" data-status="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-status="Downloading" aria-pressed="false"><span class="l">Downloading</span><span class="v">1</span><span class="s">downloads</span></button>
  <button class="hss-tile" type="button" data-status="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-status="Failed" aria-pressed="false"><span class="l">Failed</span><span class="v">1</span><span class="s">downloads</span></button>
</div>
<ul class="dl-list" data-dl>
  <li data-status="Done"><span>Bicycle drivetrain teardown</span><span class="st">Done</span></li>
  <li data-status="Downloading"><span>Kiln firing, part three</span><span class="st">Downloading</span></li>
  <li data-status="Queued"><span>Field recording — marsh at dawn</span><span class="st">Queued</span></li>
  <li data-status="Done"><span>Lathe restoration, episode 12</span><span class="st">Done</span></li>
  <li data-status="Failed"><span>Sourdough hydration tests</span><span class="st">Failed</span></li>
  <li data-status="Queued"><span>Bookbinding: the long stitch</span><span class="st">Queued</span></li>
</ul>
<p class="dl-status" data-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;                         /* the hairline */
  background: var(--border);        /* shows through the gap */
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  grid-template-columns: 1fr;
}
@container (min-width: 21rem) { .hss-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@container (min-width: 42rem) { .hss-strip { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
@container (min-width: 42rem) { .hss-strip.five { grid-template-columns: repeat(5, minmax(0, 1fr)); } }

.hss-tile { background: var(--surface); padding: 14px 16px; min-width: 0; text-align: left; }
.hss-tile .l { font: 500 0.8125rem/1.3 ui-monospace, monospace; text-transform: uppercase; color: var(--dim); }
.hss-tile .v { font-size: 1.6rem; font-weight: 800; color: var(--ink); font-variant-numeric: tabular-nums; }
.hss-tile .v.dim { color: var(--dim); }
.hss-tile .s { font-size: 0.875rem; color: var(--dim); overflow-wrap: anywhere; }
button.hss-tile[aria-pressed="true"] {
  background: color-mix(in srgb, var(--accent) 14%, var(--surface));
}

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

tiles.forEach((tile) => {
  tile.addEventListener("click", () => {
    const wasOn = tile.getAttribute("aria-pressed") === "true";
    const value = wasOn || tile.dataset.status === "All" ? "All" : tile.dataset.status;
    tiles.forEach((other) => other.setAttribute("aria-pressed", String(other.dataset.status === value)));
    let shown = 0;
    rows.forEach((row) => {
      const match = value === "All" || row.dataset.status === value;
      row.hidden = !match;
      if (match) shown += 1;
    });
    status.textContent = value === "All"
      ? "Showing all 6 downloads."
      : `Filtered to ${value}: ${shown} of 6. Press the lit tile again to clear.`;
  });
});