/* Architecture panel + workbench tabs — dark theme (matches LoopForge shell) */

:root {
  --vp-bg: #04040d;
  --vp-surface: #0c0c1a;
  --vp-surface-hover: #101020;
  --vp-border: #222240;
  --vp-text: #d8dbf0;
  --vp-text-secondary: #9aa0c4;
  --vp-text-muted: #50507a;
  --vp-accent: #ff6b35;
  --vp-accent-hover: #ff8559;
}

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

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

.page-hero h1 {
  color: var(--vp-text);
}

.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);
  border-radius: 12px;
  background: var(--vp-surface-hover);
}

@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);
}

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

.arch-mid .muted {
  color: var(--vp-text-muted);
  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);
  background: var(--vp-surface);
  color: var(--vp-text-secondary);
}

.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);
  background: var(--vp-surface);
}

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

.arch-tradeoff .gain {
  color: #00ff88;
  font-weight: 600;
}

.arch-tradeoff .trade {
  color: #ffd700;
  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);
  background: var(--vp-surface-hover);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

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

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

/* Workbench tabs — sit under LoopForge header */
.workbench-tabs {
  display: flex;
  gap: 0.35rem;
  margin: 0.75rem 24px 1rem;
  border-bottom: 1px solid var(--vp-border);
  max-width: calc(100% - 48px);
}

.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);
  font-family: inherit;
}

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

.workbench-tab.is-active {
  background: var(--vp-surface);
  border-color: var(--vp-border);
  border-bottom-color: var(--vp-surface);
  color: var(--vp-text);
}

.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);
}

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

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

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

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

.workbench-arch-panel {
  margin: 0 24px 2rem;
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--vp-border);
  border-radius: 12px;
  background: var(--vp-surface);
}

.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);
  text-decoration: none;
}

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

.muted,
.api-hint {
  color: var(--vp-text-muted);
}

.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);
  border-radius: 8px;
  background: var(--vp-surface);
}
.ao-jump a {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--vp-text-secondary);
  text-decoration: none;
  padding: 0.25rem 0.55rem;
  border-radius: 6px;
}
.ao-jump a:hover { background: var(--vp-surface-hover); color: var(--vp-text); }
#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 {
  background: transparent;
  border: 1px solid var(--vp-border);
  color: var(--vp-text);
  padding: 0.4rem 0.75rem;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
}