/* Architecture panel + workbench tabs — light enterprise theme (matches styles.css --vp-*) */

.architect-panel {
  margin-top: 0;
}

.architect-panel .eyebrow,
.page-hero .eyebrow {
  color: var(--vp-text-muted, #64748b);
  letter-spacing: 0.14em;
}

.page-hero h1 {
  color: var(--vp-text, #0f172a);
}

.arch-layers {
  display: grid;
  gap: 0.75rem;
  margin-top: 1rem;
}

.arch-layer {
  display: grid;
  gap: 0.5rem;
  padding: 1rem;
  border: 1px solid var(--vp-border, #e2e8f0);
  border-radius: 12px;
  background: var(--vp-surface-hover, #f8fafc);
}

@media (min-width: 768px) {
  .arch-layer {
    grid-template-columns: 72px 160px 1fr;
    align-items: start;
  }
}

.arch-tier {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--vp-accent, #2563eb);
}

.arch-mid {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.arch-mid .muted {
  color: var(--vp-text-muted, #64748b);
  font-size: 0.8rem;
}

.arch-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.arch-chip {
  font-size: 0.72rem;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  border: 1px solid var(--vp-border, #e2e8f0);
  background: var(--vp-surface, #ffffff);
  color: var(--vp-text-secondary, #475569);
}

.arch-tradeoffs {
  display: grid;
  gap: 0.75rem;
  margin-top: 1rem;
}

@media (min-width: 768px) {
  .arch-tradeoffs {
    grid-template-columns: 1fr 1fr;
  }
}

.arch-tradeoff {
  padding: 1rem;
  border-radius: 12px;
  border: 1px solid var(--vp-border, #e2e8f0);
  background: var(--vp-surface, #ffffff);
}

.arch-tradeoff p {
  margin: 0.35rem 0 0;
  font-size: 0.875rem;
  color: var(--vp-text-secondary, #475569);
  line-height: 1.5;
}

.arch-tradeoff .gain {
  color: #047857;
  font-weight: 600;
}

.arch-tradeoff .trade {
  color: #b45309;
  font-weight: 600;
}

.arch-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin-top: 1rem;
}

@media (min-width: 768px) {
  .arch-metrics {
    grid-template-columns: repeat(4, 1fr);
  }
}

.arch-metric {
  padding: 1rem;
  border-radius: 12px;
  border: 1px solid var(--vp-border, #e2e8f0);
  background: var(--vp-surface-hover, #f8fafc);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.arch-metric span {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--vp-text-muted, #64748b);
}

.arch-metric strong {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--vp-text, #0f172a);
  font-variant-numeric: tabular-nums;
}

/* Workbench tabs */
.workbench-tabs {
  display: flex;
  gap: 0.35rem;
  margin: 0 0 1.25rem;
  border-bottom: 1px solid var(--vp-border, #e2e8f0);
}

.workbench-tab {
  position: relative;
  margin-bottom: -1px;
  padding: 0.65rem 1rem 0.75rem;
  border: 1px solid transparent;
  border-radius: 10px 10px 0 0;
  background: transparent;
  cursor: pointer;
  text-align: left;
  color: var(--vp-text-muted, #64748b);
  font-family: inherit;
}

.workbench-tab:hover {
  background: var(--vp-surface-hover, #f8fafc);
  color: var(--vp-text-secondary, #475569);
}

.workbench-tab.is-active {
  background: var(--vp-surface, #ffffff);
  border-color: var(--vp-border, #e2e8f0);
  border-bottom-color: var(--vp-surface, #ffffff);
  color: var(--vp-text, #0f172a);
}

.workbench-tab__label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
}

.workbench-tab__hint {
  display: block;
  font-size: 0.65rem;
  margin-top: 0.1rem;
  color: var(--vp-text-muted, #64748b);
}

.workbench-tab.is-active .workbench-tab__hint {
  color: var(--vp-text-muted, #64748b);
}

.workbench-tab.is-active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--vp-accent, #2563eb);
}

.ao-title {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 1.25rem 0 0.5rem;
  color: var(--vp-text, #0f172a);
}

.ao-layer-name {
  color: var(--vp-text, #0f172a);
  font-weight: 600;
}

.ao-trade-title {
  display: block;
  margin-bottom: 0.35rem;
  font-weight: 600;
  color: var(--vp-text, #0f172a);
}

.workbench-arch-panel[hidden],
#workbench-product[hidden],
.workbench-product-legacy[hidden] {
  display: none !important;
}

.arch-doc-links {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.arch-doc-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--vp-accent, #2563eb);
  text-decoration: none;
}

.arch-doc-links a:hover {
  text-decoration: underline;
}

.ao-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0 0 1rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--vp-border, #e2e8f0);
  border-radius: 8px;
  background: var(--vp-surface, #fff);
}
.ao-jump a {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--vp-text-secondary, #475569);
  text-decoration: none;
  padding: 0.25rem 0.55rem;
  border-radius: 6px;
}
.ao-jump a:hover { background: var(--vp-surface-hover, #f8fafc); color: var(--vp-text, #0f172a); }
#ao-stack, #ao-tradeoffs, #ao-adrs, #ao-metrics { scroll-margin-top: 5rem; }
.ao-metrics-failed { display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem; margin-top: 0.5rem; }
.ao-metrics-failed button.secondary,
.arch-metrics-slot button.secondary {
  background: transparent;
  border: 1px solid var(--vp-border-strong, #cbd5e1);
  color: var(--vp-text, #0f172a);
  padding: 0.4rem 0.75rem;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
}