/* Enterprise RAG glass-box — architecture left, pipeline center, product right */

:root {
  --gb-max-w: 1440px;
  --gb-rail-w: 248px;
  --gb-product-w: 380px;
  --gb-gap: 1rem;
  --gb-node-access: #7c3aed;
  --gb-node-guard: #0891b2;
  --gb-node-retrieve: #0369a1;
  --gb-node-graph: #0d9488;
  --gb-node-rerank: #2563eb;
  --gb-node-assemble: #4f46e5;
  --gb-node-generate: #059669;
  --gb-node-decline: #dc2626;
}

.gb-shell {
  max-width: var(--gb-max-w);
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
}

.gb-hero {
  margin-bottom: 1rem;
}

.gb-hero h1 {
  margin: 0 0 0.35rem;
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
}

.gb-hero .lede {
  font-size: 0.92rem;
  max-width: 72ch;
}

.gb-workbench {
  display: grid;
  grid-template-columns: var(--gb-rail-w) minmax(0, 1fr) var(--gb-product-w);
  gap: var(--gb-gap);
  align-items: start;
  min-height: 560px;
}

.gb-rail,
.gb-center,
.gb-product {
  background: var(--vp-surface);
  border: 1px solid var(--vp-border);
  border-radius: var(--vp-radius-lg);
  box-shadow: var(--vp-shadow);
}

.gb-rail {
  padding: 0.85rem 0.9rem;
  font-size: 0.78rem;
  max-height: calc(100vh - 120px);
  overflow: auto;
  position: sticky;
  top: calc(var(--vp-header-h) + 0.5rem);
}

.gb-rail h2 {
  margin: 0 0 0.5rem;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--vp-text-muted);
}

.gb-stack-layer {
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--vp-border);
}

.gb-stack-layer:last-child {
  border-bottom: none;
}

.gb-stack-tier {
  font-size: 0.62rem;
  font-weight: 700;
  color: var(--vp-accent);
  letter-spacing: 0.06em;
}

.gb-stack-name {
  font-weight: 600;
  font-size: 0.8rem;
  line-height: 1.25;
}

.gb-stack-role {
  color: var(--vp-text-muted);
  font-size: 0.72rem;
  line-height: 1.35;
}

.gb-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.4rem;
  margin: 0.5rem 0 0.75rem;
}

.gb-metric {
  background: var(--vp-bg-subtle);
  border: 1px solid var(--vp-border);
  border-radius: var(--vp-radius-sm);
  padding: 0.4rem 0.5rem;
}

.gb-metric span {
  display: block;
  font-size: 0.62rem;
  color: var(--vp-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.gb-metric strong {
  font-size: 0.95rem;
  font-weight: 700;
}

.gb-metrics-failed {
  margin: 0.5rem 0;
}

.gb-metrics-failed button {
  margin-top: 0.35rem;
  padding: 0.35rem 0.65rem;
  font-size: 0.75rem;
}

.gb-adr-links {
  list-style: none;
  padding: 0;
  margin: 0.35rem 0 0;
}

.gb-adr-links a {
  display: block;
  font-size: 0.72rem;
  color: var(--vp-accent);
  text-decoration: none;
  padding: 0.2rem 0;
  line-height: 1.35;
}

.gb-adr-links a:hover {
  text-decoration: underline;
}

.gb-tradeoff {
  margin-top: 0.5rem;
  padding: 0.45rem 0.5rem;
  background: var(--vp-bg-subtle);
  border-radius: var(--vp-radius-sm);
  border-left: 3px solid var(--vp-accent);
}

.gb-tradeoff strong {
  display: block;
  font-size: 0.75rem;
  margin-bottom: 0.15rem;
}

.gb-tradeoff p {
  margin: 0;
  font-size: 0.68rem;
  color: var(--vp-text-muted);
  line-height: 1.35;
}

.gb-center {
  padding: 0.85rem 1rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  min-height: 520px;
}

.gb-center-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.gb-center-head h2 {
  margin: 0;
  font-size: 0.85rem;
  font-weight: 600;
}

.gb-source-badge {
  font-size: 0.68rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: var(--vp-bg-subtle);
  color: var(--vp-text-muted);
  border: 1px solid var(--vp-border);
}

.gb-source-badge.live {
  background: var(--vp-success-subtle);
  color: var(--vp-success);
  border-color: rgba(5, 150, 105, 0.25);
}

.gb-source-badge.fallback {
  background: var(--vp-warning-subtle);
  color: var(--vp-warning);
  border-color: rgba(217, 119, 6, 0.25);
}

.gb-source-badge.error {
  background: var(--vp-danger-subtle);
  color: var(--vp-danger);
  border-color: rgba(220, 38, 38, 0.3);
}

.gb-pipeline-svg {
  width: 100%;
  flex: 1;
  min-height: 280px;
}

.gb-node rect {
  fill: var(--vp-bg-subtle);
  stroke: var(--vp-border-strong);
  stroke-width: 1.5;
  transition: fill 0.2s, stroke 0.2s, filter 0.2s;
}

.gb-node text {
  font-family: var(--vp-font);
  font-size: 11px;
  font-weight: 600;
  fill: var(--vp-text-secondary);
}

.gb-node.gb-skipped {
  opacity: 0.35;
}

.gb-node.gb-active rect {
  stroke-width: 2.5;
  filter: drop-shadow(0 0 8px color-mix(in srgb, var(--node-color) 40%, transparent));
}

.gb-node.gb-done rect {
  stroke: var(--vp-success);
  fill: color-mix(in srgb, var(--vp-success) 8%, var(--vp-bg-subtle));
}

/* Amber = demo_fallback / degraded replay (not a live success) */
.gb-node.gb-fallback rect {
  stroke: var(--vp-warning);
  fill: color-mix(in srgb, var(--vp-warning) 10%, var(--vp-bg-subtle));
}

.gb-node.gb-fallback text {
  fill: var(--vp-warning);
}

/* Red = hard failure at this stage (API auth, decline, etc.) */
.gb-node.gb-error rect {
  stroke: var(--vp-danger);
  fill: color-mix(in srgb, var(--vp-danger) 10%, var(--vp-bg-subtle));
  filter: drop-shadow(0 0 6px color-mix(in srgb, var(--vp-danger) 35%, transparent));
}

.gb-node.gb-error text {
  fill: var(--vp-danger);
}

.gb-edge {
  stroke: var(--vp-border-strong);
  stroke-width: 1.5;
  fill: none;
}

.gb-edge.gb-active {
  stroke: var(--vp-accent);
  stroke-width: 2;
}

.gb-gate {
  font-size: 0.75rem;
  padding: 0.45rem 0.65rem;
  background: var(--vp-accent-subtle);
  border: 1px solid color-mix(in srgb, var(--vp-accent) 25%, transparent);
  border-radius: var(--vp-radius-sm);
  color: var(--vp-text-secondary);
  line-height: 1.4;
  min-height: 2.4rem;
}

.gb-gate.decline,
.gb-gate.is-error {
  background: var(--vp-danger-subtle);
  border-color: rgba(220, 38, 38, 0.25);
  color: var(--vp-danger);
}

.gb-gate.is-fallback {
  background: var(--vp-warning-subtle);
  border-color: rgba(217, 119, 6, 0.3);
  color: #92400e;
}

.gb-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
}

.gb-pill {
  font-size: 0.68rem;
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--vp-border);
  background: var(--vp-surface);
  color: var(--vp-text-muted);
}

.gb-pill.gb-active {
  border-color: var(--pill-color, var(--vp-accent));
  color: var(--pill-color, var(--vp-accent));
  background: color-mix(in srgb, var(--pill-color, var(--vp-accent)) 12%, white);
}

.gb-pill.gb-done {
  border-color: var(--vp-success);
  color: var(--vp-success);
  background: var(--vp-success-subtle);
}

.gb-pill.gb-fallback {
  border-color: var(--vp-warning);
  color: var(--vp-warning);
  background: var(--vp-warning-subtle);
}

.gb-pill.gb-error {
  border-color: var(--vp-danger);
  color: var(--vp-danger);
  background: var(--vp-danger-subtle);
}

/* Product-panel status severity */
.status-msg {
  margin: 0.5rem 0 0;
  font-size: 0.8rem;
  line-height: 1.45;
  padding: 0.45rem 0.65rem;
  border-radius: var(--vp-radius-sm);
  border: 1px solid transparent;
}

.status-msg.is-idle {
  color: var(--vp-text-muted);
  padding: 0;
  border: none;
}

.status-msg.is-ok {
  background: var(--vp-success-subtle);
  border-color: rgba(5, 150, 105, 0.25);
  color: var(--vp-success);
}

.status-msg.is-warn {
  background: var(--vp-warning-subtle);
  border-color: rgba(217, 119, 6, 0.3);
  color: #92400e;
}

.status-msg.is-error {
  background: var(--vp-danger-subtle);
  border-color: rgba(220, 38, 38, 0.3);
  color: var(--vp-danger);
}

.status-msg .status-detail {
  display: block;
  margin-top: 0.25rem;
  font-family: var(--vp-mono);
  font-size: 0.68rem;
  opacity: 0.85;
  word-break: break-word;
}

.answer.is-fallback {
  border-color: rgba(217, 119, 6, 0.4) !important;
  background: var(--vp-warning-subtle) !important;
}

.answer.is-error {
  border-color: rgba(220, 38, 38, 0.35) !important;
  background: var(--vp-danger-subtle) !important;
}

.answer-badge {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  margin-bottom: 0.35rem;
}

.answer-badge.is-fallback {
  background: var(--vp-warning-subtle);
  color: var(--vp-warning);
  border: 1px solid rgba(217, 119, 6, 0.3);
}

.answer-badge.is-live {
  background: var(--vp-success-subtle);
  color: var(--vp-success);
  border: 1px solid rgba(5, 150, 105, 0.25);
}

.gb-pill-arrow {
  color: var(--vp-text-muted);
  font-size: 0.65rem;
}

.gb-event-log {
  font-family: var(--vp-mono);
  font-size: 0.68rem;
  line-height: 1.45;
  max-height: 120px;
  overflow: auto;
  background: var(--vp-bg-subtle);
  border: 1px solid var(--vp-border);
  border-radius: var(--vp-radius-sm);
  padding: 0.45rem 0.55rem;
  color: var(--vp-text-muted);
}

.gb-event-log .ev-live { color: var(--vp-accent); }
.gb-event-log .ev-fallback { color: var(--vp-warning); }
.gb-event-log .ev-error { color: var(--vp-danger); font-weight: 600; }

.gb-ops-strip .ops-fallback {
  color: var(--vp-warning);
}

.gb-product {
  padding: 1rem 1.1rem;
  position: sticky;
  top: calc(var(--vp-header-h) + 0.5rem);
  max-height: calc(100vh - 120px);
  overflow: auto;
}

.gb-product h2 {
  margin: 0 0 0.35rem;
  font-size: 0.95rem;
}

.gb-guided {
  font-size: 0.78rem;
  color: var(--vp-text-muted);
  margin: 0 0 0.75rem;
  line-height: 1.45;
}

.gb-run-row {
  margin-top: 0.65rem;
}

.gb-run-row button {
  width: 100%;
}

.gb-ops-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.75rem;
  font-size: 0.72rem;
  color: var(--vp-text-muted);
  margin-top: 0.65rem;
  padding-top: 0.65rem;
  border-top: 1px solid var(--vp-border);
}

.gb-ops-strip strong {
  color: var(--vp-text);
}

.gb-secondary {
  margin-top: 1rem;
}

.gb-secondary details {
  background: var(--vp-surface);
  border: 1px solid var(--vp-border);
  border-radius: var(--vp-radius-lg);
  padding: 0.85rem 1rem;
  margin-top: 0.75rem;
}

.gb-secondary summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 0.85rem;
}

@media (max-width: 1100px) {
  .gb-workbench {
    grid-template-columns: 1fr;
  }

  .gb-rail,
  .gb-product {
    position: static;
    max-height: none;
  }

  .gb-rail {
    order: 3;
  }

  .gb-center {
    order: 1;
    min-height: 400px;
  }

  .gb-product {
    order: 2;
  }
}