/* ── Interactive datatables (research-UX layer over the flat data-table) ──
   Client-side search + click-to-sort + facet chips + windowed pagination.
   Additive to base.css `.data-table`; flat/sharp, no radius, no shadow.
   Powers the experiment catalogue, the 3.6k-run monster, and every
   campaign/session/sweep run grid. Progressive: no-JS falls back to the
   server-rendered rows (or a <noscript> capped table for the big one). */

/* ---- toolbar: search + facets + result count ----------------------- */
.dt-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.1rem;
  margin: 0 0 1rem;
}
.dt-search {
  position: relative;
  flex: 1 1 20rem;
  min-width: 14rem;
  max-width: 32rem;
}
.dt-search input {
  width: 100%;
  font: inherit;
  font-size: 0.9rem;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 0;
  padding: 0.55rem 2rem 0.55rem 0.8rem;
  transition: border-color var(--motion-fast) var(--easing);
}
.dt-search input:focus { outline: none; border-color: var(--signal); }
.dt-search input::placeholder { color: var(--ink-45); }
.dt-search-clear {
  position: absolute;
  right: 0.4rem;
  top: 50%;
  transform: translateY(-50%);
  border: 0;
  background: none;
  color: var(--ink-45);
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  padding: 0.2rem 0.4rem;
}
.dt-search-clear:hover { color: var(--signal); }

.dt-facets { display: flex; flex-wrap: wrap; gap: 0.4rem; align-items: center; }
.dt-facet-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-45);
  margin-right: 0.15rem;
}
.dt-chip {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  color: var(--ink-70);
  background: var(--paper-sunk);
  border: 1px solid var(--rule);
  border-radius: 0;
  padding: 0.28rem 0.6rem;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--motion-fast) var(--easing),
              color var(--motion-fast) var(--easing),
              border-color var(--motion-fast) var(--easing);
}
.dt-chip:hover { background: var(--signal-ghost); color: var(--signal-ink); }
.dt-chip .dt-chip-n { color: var(--ink-45); margin-left: 0.35rem; }
.dt-chip.is-on {
  background: var(--signal);
  border-color: var(--signal);
  color: #fff;
}
.dt-chip.is-on .dt-chip-n { color: rgba(255, 255, 255, 0.7); }

.dt-count {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-45);
  margin-left: auto;
  white-space: nowrap;
}
.dt-count strong { color: var(--ink-70); font-weight: 600; }

/* ---- sortable headers ---------------------------------------------- */
.data-table th.dt-sortable {
  cursor: pointer;
  user-select: none;
  position: relative;
  padding-right: 1.5rem;
}
.data-table th.dt-sortable:hover { color: var(--signal); background: var(--signal-ghost); }
.data-table th.dt-sortable::after {
  content: "";
  position: absolute;
  right: 0.7rem;
  top: 50%;
  width: 0;
  height: 0;
  opacity: 0.28;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-bottom: 5px solid currentColor;
  transform: translateY(-50%) rotate(180deg);
}
.data-table th.dt-sortable.dt-asc::after {
  opacity: 1;
  color: var(--signal);
  transform: translateY(-50%) rotate(0deg);
}
.data-table th.dt-sortable.dt-desc::after {
  opacity: 1;
  color: var(--signal);
  transform: translateY(-50%) rotate(180deg);
}

/* Sticky header for long windowed tables. */
.dt-sticky thead th { position: sticky; top: 0; z-index: 2; }

/* ---- pagination ---------------------------------------------------- */
.dt-pager {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}
.dt-pager button {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-70);
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 0;
  padding: 0.35rem 0.7rem;
  cursor: pointer;
  transition: background var(--motion-fast) var(--easing);
}
.dt-pager button:hover:not(:disabled) { background: var(--signal-ghost); color: var(--signal-ink); }
.dt-pager button:disabled { opacity: 0.4; cursor: default; }
.dt-pager .dt-pager-info { font-family: var(--font-mono); font-size: 0.78rem; color: var(--ink-45); }
.dt-pager select {
  font: inherit; font-size: 0.78rem; font-family: var(--font-mono);
  border: 1px solid var(--rule); border-radius: 0; padding: 0.3rem 0.45rem;
  background: var(--surface); color: var(--ink-70);
}

.dt-empty { padding: 2rem 1rem; text-align: center; color: var(--ink-45); }

/* Highlight the interactive rows a touch on the big catalogue. */
.data-table tr.dt-row:hover { background: var(--signal-ghost); }

/* Data-backed micro-bars (gate-pass ratio, run volume) — pure CSS, no lib. */
.dt-bar { display: inline-flex; align-items: center; gap: 0.45rem; }
.dt-bar-track {
  position: relative;
  width: 3.4rem;
  height: 0.4rem;
  background: var(--rule);
  overflow: hidden;
}
.dt-bar-fill { position: absolute; inset: 0 auto 0 0; background: var(--signal); }
.dt-bar-fill.is-warn { background: var(--stale); }
.dt-bar-fill.is-bad { background: var(--fault); }
.dt-bar-val { font-family: var(--font-mono); font-size: 0.72rem; color: var(--ink-70); }

/* "Surprise me" — jump into a random replayable run. */
.dt-surprise {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--signal-ink);
  background: var(--signal-ghost);
  border: 1px solid var(--signal-ghost);
  border-radius: 0;
  padding: 0.4rem 0.8rem;
  cursor: pointer;
  transition: background var(--motion-fast) var(--easing);
}
.dt-surprise:hover { background: var(--signal); color: #fff; border-color: var(--signal); }

/* Replay-capable rows carry a subtle left rule so the eye finds explorable runs. */
.data-table tr.dt-has-replay td:first-child { box-shadow: inset 3px 0 0 var(--signal); }

@media (max-width: 720px) {
  .dt-count { margin-left: 0; width: 100%; }
}

/* ---- stat strip (data-backed totals above a catalogue) ------------- */
.dt-statstrip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.6rem;
  padding: 1rem 1.25rem;
  margin: 0 0 1.5rem;
  background: var(--paper-sunk);
  border: 1px solid var(--rule);
}
.dt-stat { display: flex; flex-direction: column; line-height: 1.1; }
.dt-stat-num {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.dt-stat-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-45);
  margin-top: 0.2rem;
}
.dt-statstrip .dt-surprise { margin-left: auto; }
@media (max-width: 720px) {
  .dt-statstrip { gap: 1rem; }
  .dt-statstrip .dt-surprise { margin-left: 0; width: 100%; text-align: center; }
}