/* Queues & workers — what the execution substrate looks like: three load
   lanes, the worker-service grid, and the queue registry table. Diagrams
   bespoke to this one page; the layered-stack kit (stk-*) carries the worker
   band, module.css the chrome.
   Loaded by queues.html on top of module.css.
   Placement convention: docs/architecture/README.md §Styling. */

/* ── Worker layer accent — names the band's color, as the kit expects. ── */
.stk-layer--worker {
  --stk-lc: var(--s2);
  --stk-lc-pale: var(--s2-pale);
}

/* ═══════════════════════════════════════════
   Lanes — three load columns
   ═══════════════════════════════════════════ */
.lanes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.6rem;
}

.lane {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 0.7rem 0.85rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: 3px solid var(--lane-c, var(--accent));
  border-radius: var(--radius-md);
}

.lane--interactive {
  --lane-c: var(--s1);
}
.lane--background {
  --lane-c: var(--s3);
}
.lane--agents {
  --lane-c: var(--s4);
}

.lane__h {
  font-family: var(--mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--lane-c, var(--accent));
}

.lane__t {
  font-size: 0.74rem;
  font-style: italic;
  color: var(--text-dim);
}

.lane__list {
  list-style: none;
  margin: 0.1rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.8rem;
  color: var(--text);
}

.lane__list li {
  position: relative;
  padding-left: 0.85rem;
}

.lane__list li::before {
  content: "";
  position: absolute;
  left: 0.15rem;
  top: 0.55em;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--lane-c, var(--accent));
}

/* ═══════════════════════════════════════════
   Worker service grid
   ═══════════════════════════════════════════ */
.wk-grid {
  flex-basis: 100%;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.55rem;
}

.wk-svc {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 0.6rem 0.7rem;
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

/* The API service stands apart from the worker pool — it scales on its own. */
.wk-svc--api {
  border-style: dashed;
  border-color: var(--accent-muted);
}

.wk-svc__name {
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--text);
}

.wk-svc__d {
  font-size: 0.72rem;
  color: var(--text-dim);
  line-height: 1.4;
}

/* Tighter bullet rhythm for the in-layer rule list. */
.cw-rules {
  margin-top: 0.4rem;
}

/* ═══════════════════════════════════════════
   Queue registry table
   ═══════════════════════════════════════════ */
.reg {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}

.reg th {
  text-align: left;
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  padding: 0.4rem 0.6rem;
  border-bottom: 1px solid var(--border);
}

.reg td {
  padding: 0.55rem 0.6rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-dim);
  vertical-align: top;
  line-height: 1.4;
}

.reg tr:last-child td {
  border-bottom: none;
}

.reg__q {
  font-weight: 600;
  color: var(--text);
}

.reg__c {
  color: var(--text);
}

.reg__note {
  color: var(--text-muted);
  font-style: italic;
}

/* Lane pill — colored chip tying a registry row to its lane. */
.lane-pill {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.66rem;
  font-weight: 700;
  padding: 0.16rem 0.45rem;
  border-radius: var(--tag-radius);
  color: #fff;
}

.lane-pill--interactive {
  background: var(--s1);
}
.lane-pill--background {
  background: var(--s3);
}
.lane-pill--agents {
  background: var(--s4);
}

.reg-notes {
  margin-top: 0.75rem;
}

/* Solo stage carries no bottom margin — give the registry section that follows
   its own air so it doesn't read as part of the worker-topology stack above. */
.stk-stage--solo + .section {
  margin-top: 2rem;
}