Hairline stat strip

<p class="hss-cap">Reporting only — the figures are the whole job.</p>
<div class="hss-strip">
<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 none" aria-label="not rated">—</span>
<span class="hss-sub">not rated yet</span>
</div>
</div>
<p class="hss-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="hss-label">All</span>
<span class="hss-fig">6</span>
<span class="hss-sub">downloads</span>
</button>
<button class="hss-tile" type="button" data-status="queued" aria-pressed="false">
<span class="hss-label">Queued</span>
<span class="hss-fig">2</span>
<span class="hss-sub">downloads</span>
</button>
<button class="hss-tile" type="button" data-status="downloading" aria-pressed="false">
<span class="hss-label">Downloading</span>
<span class="hss-fig">1</span>
<span class="hss-sub">downloads</span>
</button>
<button class="hss-tile" type="button" data-status="done" aria-pressed="false">
<span class="hss-label">Done</span>
<span class="hss-fig">2</span>
<span class="hss-sub">downloads</span>
</button>
<button class="hss-tile" type="button" data-status="failed" aria-pressed="false">
<span class="hss-label">Failed</span>
<span class="hss-fig">1</span>
<span class="hss-sub">downloads</span>
</button>
</div>
<ul class="hss-list" data-hss-list>
<li data-status="done">
<span>Bicycle drivetrain teardown</span>
<span class="hss-st done">Done</span>
</li>
<li data-status="downloading">
<span>Kiln firing, part three</span>
<span class="hss-st downloading">Downloading</span>
</li>
<li data-status="queued">
<span>Field recording — marsh at dawn</span>
<span class="hss-st queued">Queued</span>
</li>
<li data-status="done">
<span>Lathe restoration, episode 12</span>
<span class="hss-st done">Done</span>
</li>
<li data-status="failed">
<span>Sourdough hydration tests</span>
<span class="hss-st failed">Failed</span>
</li>
<li data-status="queued">
<span>Bookbinding: the long stitch</span>
<span class="hss-st queued">Queued</span>
</li>
</ul>
<p class="hss-status" data-hss-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;
}
@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-strip.five { grid-template-columns: repeat(auto-fit, minmax(8.5rem, 1fr)); }

.hss-tile { background: var(--surface); padding: 0.9rem 1rem; min-width: 0; text-align: left; border: 0; color: var(--ink); font: inherit; }
.hss-label { display: block; font: 500 0.8125rem/1.4 ui-monospace, monospace; text-transform: uppercase; letter-spacing: 0.08em; color: var(--dim); }
.hss-fig { display: block; font-size: 1.6rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.hss-fig.none { color: var(--dim); font-weight: 400; }
.hss-sub { display: block; color: var(--dim); }

button.hss-tile { cursor: pointer; }
button.hss-tile[aria-pressed="true"] {
  background: color-mix(in srgb, var(--accent) 14%, var(--surface));
  box-shadow: inset 0 -4px 0 var(--accent);
}

: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 tiles = [...document.querySelectorAll('[data-hss-filter] button')];
const items = [...document.querySelectorAll('[data-hss-list] li')];
const status = document.querySelector('[data-hss-status]');

tiles.forEach((tile) => tile.addEventListener('click', () => {
  const wasPressed = tile.getAttribute('aria-pressed') === 'true';
  const filter = wasPressed || tile.dataset.status === 'all' ? 'all' : tile.dataset.status;
  tiles.forEach((other) => other.setAttribute('aria-pressed', String(other.dataset.status === filter)));
  let shown = 0;
  items.forEach((item) => {
    item.hidden = !(filter === 'all' || item.dataset.status === filter);
    if (!item.hidden) shown += 1;
  });
  status.textContent = filter === 'all'
    ? `Showing all ${items.length} downloads.`
    : `Filtered to ${tile.querySelector('.hss-label').textContent}: ${shown} of ${items.length}. Press the lit tile again to clear.`;
}));