/* ═══════════════════════════════════════════════════════════════
   ALYNTE Product Detail — reference architecture (Engineering Health)
   Extends product-page.css tokens
   ═══════════════════════════════════════════════════════════════ */

/* ── Hero ── */
.pd-hero {
  padding: 120px 24px 80px;
  background: var(--hero-bg);
  color: var(--hero-text);
}
.pd-hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.pd-hero .prod-h1 { color: var(--hero-text); }
.pd-hero-tagline {
  margin-top: 20px;
  font-size: 14px;
  color: var(--hero-muted);
}
.pd-hero-visual { display: flex; align-items: center; justify-content: center; }

/* Hero visualization */
.pd-eh-hero-viz {
  width: 100%;
  max-width: 400px;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
}
.pd-eh-sources {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
}
.pd-eh-source {
  font-size: 11px;
  font-weight: 600;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--background);
  color: var(--text-secondary);
}
.pd-eh-sources-arrow {
  text-align: center;
  color: var(--accent);
  font-size: 14px;
  padding: 8px 0;
}
.pd-eh-hub {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  margin-bottom: 12px;
}
.pd-eh-hub-mark {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--primary);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.pd-eh-hub-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--primary);
}
.pd-eh-stack { margin-top: 4px; }
.pd-eh-stack-step {
  font-size: 12px;
  font-weight: 500;
  padding: 8px 12px;
  text-align: center;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--background);
  color: var(--text-secondary);
}
.pd-eh-stack-step--feat {
  background: rgba(37, 99, 235, 0.1);
  border-color: rgba(37, 99, 235, 0.3);
  color: var(--primary);
  font-weight: 600;
}
.pd-eh-stack-arrow {
  text-align: center;
  color: var(--text-muted);
  font-size: 12px;
  padding: 3px 0;
}

/* ── Trust problem viz ── */
.pd-trust-problem {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 16px;
  align-items: center;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
}
.pd-trust-problem-node {
  padding: 10px 12px;
  margin-bottom: 8px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--background);
  display: flex;
  justify-content: space-between;
  font-size: 13px;
}
.pd-trust-problem-node--unknown {
  border-style: dashed;
  border-color: var(--text-muted);
}
.pd-trust-problem-node--warn {
  border-color: rgba(217, 119, 6, 0.35);
  background: rgba(217, 119, 6, 0.06);
}
.pd-trust-problem-bridge {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  text-align: center;
  max-width: 80px;
}
.pd-trust-problem-line {
  width: 2px;
  height: 48px;
  background: var(--accent);
  opacity: 0.4;
}
.pd-trust-problem-outcome {
  padding: 16px;
  border-radius: 10px;
  background: rgba(217, 119, 6, 0.08);
  border: 1px solid rgba(217, 119, 6, 0.25);
  text-align: center;
}
.pd-trust-problem-outcome strong {
  display: block;
  margin-top: 8px;
  font-size: 15px;
}

/* ── Evaluation model ── */
.pd-eval-model {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.pd-eval-item {
  padding: 18px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--background);
}
.pd-eval-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  margin-bottom: 6px;
}
.pd-eval-item p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.45;
  margin: 0;
}

/* ── Trust flow ── */
.pd-trust-flow { margin-top: 20px; }
.pd-trust-flow-arrow {
  text-align: center;
  color: var(--accent);
  font-size: 14px;
  padding: 2px 0;
}
.pd-trust-flow-step {
  font-size: 14px;
  font-weight: 500;
  padding: 10px 14px;
  margin-bottom: 4px;
  border-left: 3px solid var(--border);
  padding-left: 14px;
  color: var(--text-secondary);
}
.pd-trust-flow-step--feat {
  border-left-color: var(--accent);
  color: var(--primary);
  font-weight: 600;
}

/* ── Explainability flow ── */
.pd-explain-flow {
  display: flex;
  align-items: stretch;
  justify-content: center;
  flex-wrap: wrap;
  gap: 6px;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
}
.pd-explain-step {
  flex: 1 1 100px;
  min-width: 90px;
  padding: 12px 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--background);
  text-align: center;
}
.pd-explain-step span {
  display: block;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
  margin-bottom: 4px;
}
.pd-explain-step p {
  font-size: 11px;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.35;
}
.pd-explain-step--feat {
  border-color: rgba(37, 99, 235, 0.35);
  background: rgba(37, 99, 235, 0.06);
}
.pd-explain-arrow {
  align-self: center;
  color: var(--text-muted);
  font-size: 14px;
}

/* ── Status system ── */
.pd-status {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 4px 8px;
  border-radius: 4px;
  text-transform: uppercase;
}
.pd-status--healthy {
  background: rgba(5, 150, 105, 0.12);
  color: var(--success);
  border: 1px solid rgba(5, 150, 105, 0.25);
}
.pd-status--attention {
  background: rgba(217, 119, 6, 0.12);
  color: var(--warning);
  border: 1px solid rgba(217, 119, 6, 0.25);
}
.pd-status--critical {
  background: rgba(220, 38, 38, 0.1);
  color: var(--danger);
  border: 1px solid rgba(220, 38, 38, 0.25);
}
.pd-status--unknown {
  background: rgba(107, 114, 128, 0.12);
  color: var(--text-muted);
  border: 1px dashed var(--border);
}
.pd-status--track {
  background: rgba(5, 150, 105, 0.12);
  color: var(--success);
  border: 1px solid rgba(5, 150, 105, 0.25);
}
.pd-status--risk {
  background: rgba(217, 119, 6, 0.12);
  color: var(--warning);
  border: 1px solid rgba(217, 119, 6, 0.25);
}
.pd-status--worsening {
  background: rgba(220, 38, 38, 0.1);
  color: var(--danger);
  border: 1px solid rgba(220, 38, 38, 0.25);
}
.pd-meta-label {
  display: block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 2px;
}
.pd-ok { color: var(--success); }
.pd-warn { color: var(--warning); }

/* ── Findings ── */
.pd-findings-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.pd-finding-card {
  display: flex;
  flex-direction: column;
  text-align: left;
  width: 100%;
  padding: 18px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--background);
  cursor: pointer;
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.pd-finding-card:hover,
.pd-finding-card:focus-visible {
  border-color: rgba(37, 99, 235, 0.35);
  box-shadow: 0 8px 24px rgba(17, 24, 39, 0.08);
  outline: none;
}
.pd-finding-card:focus-visible {
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.3);
}
.pd-card-title {
  font-size: 15px;
  font-weight: 600;
  margin: 10px 0 6px;
  color: var(--primary);
}
.pd-finding-link {
  margin-top: auto;
  padding-top: 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
}
.pd-status-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.pd-legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-secondary);
}

/* ── Confidence & unknown ── */
.pd-confidence-scale {
  margin-top: 20px;
  display: grid;
  gap: 12px;
}
.pd-confidence-scale > div {
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  font-size: 14px;
}
.pd-unknown-viz {
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
}
.pd-unknown-step {
  font-size: 13px;
  font-weight: 500;
  padding: 10px 14px;
  text-align: center;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--background);
  color: var(--text-secondary);
}
.pd-unknown-step--feat {
  border-style: dashed;
  border-color: var(--text-muted);
  color: var(--text-muted);
  font-weight: 700;
  letter-spacing: 0.04em;
}
.pd-unknown-arrow {
  text-align: center;
  color: var(--accent);
  font-size: 14px;
  padding: 4px 0;
}

/* ── Example card ── */
.pd-example-card {
  padding: 22px 20px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
}
.pd-example-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
}
.pd-example-grid > div {
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--background);
  font-size: 13px;
}

/* ── Journey rail (detail) ── */
.pd-journey-rail {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}
.pd-journey-step {
  flex: 1 1 140px;
  max-width: 180px;
  padding: 14px 12px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  text-align: center;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s, background 0.2s;
}
.pd-journey-step span {
  display: block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--hero-muted);
  margin-bottom: 4px;
}
.pd-journey-step strong {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--hero-text);
  margin-bottom: 4px;
}
.pd-journey-step p {
  font-size: 11px;
  color: var(--hero-muted);
  margin: 0;
  line-height: 1.35;
}
.pd-journey-step--current {
  border-color: var(--accent);
  background: rgba(37, 99, 235, 0.15);
  box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.3);
}
a.pd-journey-step:hover {
  border-color: rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.08);
}

/* ── Evidence drawer ── */
.pd-drawer[hidden] { display: none; }
.pd-drawer {
  position: fixed;
  inset: 0;
  z-index: 500;
}
.pd-drawer-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 20, 25, 0.5);
}
.pd-drawer-panel {
  position: absolute;
  top: 0;
  right: 0;
  width: min(440px, 100vw);
  height: 100%;
  background: var(--surface);
  border-left: 1px solid var(--border);
  box-shadow: -16px 0 48px rgba(17, 24, 39, 0.12);
  overflow-y: auto;
  padding: 24px;
}
.pd-drawer-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--background);
  font-size: 20px;
  cursor: pointer;
  line-height: 1;
}
.pd-drawer-close:hover { background: var(--surface); }
.pd-drawer-content { padding-top: 8px; }
.pd-drawer-section {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.pd-drawer-section h3 {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.pd-drawer-section p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.55;
  margin: 0;
}

/* ── Where We Are — shared connectors ── */
.pd-dot-v {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  padding: 6px 0;
}
.pd-dot-v span {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.55;
}
.pd-section-cta { text-align: center; margin-top: 24px; }
.pd-section--next { padding-top: 64px; }
.pd-section--emphasis { padding-bottom: 72px; }
.pd-section--ot { min-height: 650px; }

/* Hero — commitment state brief */
.pd-pos-brief--hero {
  width: 100%;
  max-width: 100%;
  padding: 20px 22px 16px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
}
.pd-pos-brief-head { margin-bottom: 16px; }
.pd-pos-brief-title {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
  margin-top: 4px;
}
.pd-pos-brief-sub {
  display: block;
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 2px;
}
.pd-pos-brief-signal {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
}
.pd-status--hero {
  align-self: flex-start;
  font-size: 13px;
  padding: 8px 14px;
  letter-spacing: 0.08em;
}
.pd-pos-brief-gap-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 16px;
}
.pd-pos-brief-gap {
  font-size: 28px;
  font-weight: 700;
  color: var(--warning);
  letter-spacing: -0.02em;
  line-height: 1;
}
.pd-pos-brief-gap-sub {
  font-size: 12px;
  color: var(--text-secondary);
}
.pd-pos-brief-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}
.pd-pos-brief-metric { font-size: 13px; }
.pd-pos-brief-val {
  display: block;
  margin-top: 4px;
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
}
.pd-pos-brief-detail {
  display: block;
  font-size: 11px;
  color: var(--text-secondary);
  margin-top: 2px;
}
.pd-pos-brief-rail {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
  padding: 0 4px;
}
.pd-pos-brief-rail-track {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0;
}
.pd-pos-brief-rail-line {
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--accent) 0, var(--accent) 5px, transparent 5px, transparent 10px);
  opacity: 0.45;
}
.pd-pos-brief-rail-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--surface);
  flex-shrink: 0;
}
.pd-pos-brief-rail-endpoints {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
}
.pd-pos-brief-foot {
  padding-top: 12px;
  border-top: 1px solid var(--border);
  font-size: 13px;
}
.pd-pos-brief-foot strong { color: var(--primary); font-weight: 600; }
.pd-pos-brief .prod-note { margin-top: 10px; margin-bottom: 0; font-size: 12px; }

/* Conceptual flow — Section 2 */
.pd-concept-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px 6px;
  max-width: 720px;
  margin: 0 auto;
  padding: 24px 16px;
}
.pd-concept-flow-item {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--background);
}
.pd-concept-flow-item--feat {
  color: var(--primary);
  border-color: rgba(37, 99, 235, 0.35);
  background: rgba(37, 99, 235, 0.06);
}
.pd-concept-flow-arrow {
  font-size: 14px;
  color: var(--accent);
  opacity: 0.55;
}
.pd-concept-flow--wide { max-width: 920px; }

/* Vertical commitment state chain — Section 3 */
.pd-state-chain {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 360px;
  margin: 0 auto;
}
.pd-state-chain-node {
  width: 100%;
  text-align: center;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--background);
}
.pd-state-chain-value {
  margin: 6px 0 4px;
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
}
.pd-state-chain-node p {
  font-size: 12px;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.4;
}
.pd-state-chain-node--emph .pd-state-chain-value { color: var(--warning); }
.pd-state-chain-node--feat {
  border-color: rgba(37, 99, 235, 0.35);
  background: rgba(37, 99, 235, 0.06);
}
.pd-state-chain-node--feat .pd-meta-label { color: var(--accent); }
.pd-state-chain-link { padding: 4px 0; }

/* Evidence convergence hub — Section 4 */
.pd-evidence-converge {
  display: grid;
  grid-template-columns: 1fr minmax(168px, 200px) 1fr;
  gap: 12px 16px;
  align-items: center;
  max-width: 820px;
  margin: 0 auto;
}
.pd-evidence-converge-col {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.pd-evidence-converge-col li {
  position: relative;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--background);
}
.pd-evidence-converge-col--left li { text-align: center; padding-right: 20px; }
.pd-evidence-converge-col--right li { text-align: center; padding-left: 20px; }
.pd-evidence-converge-col--left li::after,
.pd-evidence-converge-col--right li::before {
  content: "";
  position: absolute;
  top: 50%;
  width: 12px;
  height: 0;
  border-top: 2px dotted rgba(37, 99, 235, 0.35);
}
.pd-evidence-converge-col--left li::after { right: -14px; }
.pd-evidence-converge-col--right li::before { left: -14px; }
.pd-evidence-converge-hub {
  display: flex;
  justify-content: center;
  align-items: center;
  align-self: center;
}
.pd-evidence-converge-outcome {
  width: 100%;
  text-align: center;
  padding: 20px 18px;
  border: 2px solid rgba(37, 99, 235, 0.3);
  border-radius: 12px;
  background: var(--background);
  box-shadow: 0 0 0 4px var(--background);
}
.pd-evidence-converge-outcome .pd-meta-label {
  display: block;
  text-align: center;
}
.pd-evidence-converge-outcome strong {
  display: block;
  margin-top: 6px;
  font-size: 15px;
  color: var(--primary);
  text-align: center;
}

/* Commitment comparison artifacts */
.pd-commit-compare {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  align-items: stretch;
  max-width: 820px;
  margin: 0 auto;
}
.pd-commit-artifact {
  padding: 20px 18px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--background);
}
.pd-commit-artifact-head {
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.pd-commit-artifact-head strong {
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
}
.pd-commit-artifact-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px 16px;
  margin: 0;
}
.pd-commit-artifact-metrics div { margin: 0; }
.pd-commit-artifact-metrics dt {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 2px;
}
.pd-commit-artifact-metrics dd {
  font-size: 14px;
  font-weight: 600;
  margin: 0;
  color: var(--primary);
}
.pd-commit-artifact-val { font-size: 16px !important; }
.pd-commit-artifact-state { grid-column: span 2; }
.pd-commit-artifact-ev {
  margin: 14px 0 0;
  padding-left: 18px;
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* Commitment movement timeline */
.pd-timeline {
  display: grid;
  grid-template-columns: 1fr minmax(140px, 200px) 1fr;
  gap: 16px 32px;
  align-items: center;
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
}
.pd-timeline-col {
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.pd-timeline-rule {
  width: 100%;
  max-width: 200px;
  height: 1px;
  background: var(--border);
  margin: 8px 0 12px;
}
.pd-timeline-metrics {
  display: grid;
  gap: 10px;
  margin: 0;
  width: 100%;
  max-width: 200px;
}
.pd-timeline-metrics div { margin: 0; text-align: center; }
.pd-timeline-metrics dt {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 2px;
}
.pd-timeline-metrics dd { font-size: 15px; font-weight: 600; margin: 0; color: var(--primary); }
.pd-timeline-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  text-align: center;
  align-self: center;
}
.pd-timeline-delta {
  font-size: 11px;
  color: var(--text-secondary);
}
.pd-timeline-delta strong { display: block; font-size: 16px; margin-bottom: 2px; }
.pd-timeline-direction {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.pd-timeline-note {
  grid-column: 1 / -1;
  text-align: center;
  margin: 8px 0 0;
}

/* Evidence artifact — Section 7 */
.pd-evidence-artifact {
  width: 100%;
  max-width: 820px;
  margin: 0 auto;
  padding: 22px 24px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--background);
}
.pd-evidence-artifact-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}
.pd-evidence-artifact-id {
  display: block;
  font-size: 18px;
  font-weight: 600;
  color: var(--primary);
  margin-top: 4px;
}
.pd-evidence-artifact-confidence { text-align: right; }
.pd-evidence-artifact-confidence strong { display: block; margin-top: 4px; }
.pd-evidence-artifact-sources {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
.pd-evidence-artifact-source strong {
  display: block;
  margin-top: 4px;
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
}
.pd-evidence-artifact-detail {
  display: block;
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 2px;
}
.pd-evidence-artifact-relation {
  text-align: center;
  padding: 14px;
  margin-bottom: 16px;
  border: 1px dashed var(--border);
  border-radius: 10px;
  background: var(--surface);
}
.pd-evidence-artifact-relation strong {
  display: block;
  margin-top: 4px;
  font-size: 15px;
  color: var(--primary);
}
.pd-evidence-artifact-outcome {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding-bottom: 16px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.pd-evidence-artifact-outcome strong { display: block; margin-top: 4px; font-size: 15px; color: var(--primary); }
.pd-evidence-artifact-why p {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 6px 0 0;
  line-height: 1.5;
}
.pd-evidence-artifact-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-top: 16px;
}
.pd-evidence-artifact-foot .prod-note { margin: 0; }

/* Section 8 — Operational truth decision mechanism */
.pd-ot-viz {
  max-width: 820px;
  margin: 36px auto 0;
  text-align: center;
}
.pd-ot-viz .pd-meta-label { color: var(--hero-muted); }
.pd-ot-viz .pd-dot-v span { background: rgba(255, 255, 255, 0.4); }
.pd-ot-commit {
  margin-bottom: 4px;
  transition: opacity 0.4s ease;
}
.pd-ot-viz[data-stage="commitment"] .pd-ot-commit-title { color: var(--hero-text); }
.pd-ot-viz[data-stage="truth"] .pd-ot-commit,
.pd-ot-viz[data-stage^="role-"] .pd-ot-commit,
.pd-ot-viz[data-stage="conclusion"] .pd-ot-commit {
  opacity: 0.75;
}
.pd-ot-commit-title {
  display: block;
  font-size: 17px;
  font-weight: 600;
  color: var(--hero-text);
  margin-top: 6px;
}
.pd-ot-commit-meta {
  display: block;
  font-size: 13px;
  color: var(--hero-muted);
  margin-top: 4px;
}
.pd-ot-flow { display: flex; justify-content: center; padding: 6px 0; }
.pd-ot-truth {
  max-width: 400px;
  margin: 0 auto;
  padding: 22px 24px 18px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.07);
  transition: border-color 0.4s ease, background 0.4s ease, box-shadow 0.4s ease;
}
.pd-ot-viz[data-stage="truth"] .pd-ot-truth,
.pd-ot-viz[data-stage^="role-"] .pd-ot-truth,
.pd-ot-viz[data-stage="conclusion"] .pd-ot-truth {
  border-color: rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
}
.pd-ot-truth-status { margin: 10px 0 14px; }
.pd-ot-truth-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 0 0 12px;
  text-align: center;
}
.pd-ot-truth-metrics div { margin: 0; }
.pd-ot-truth-metrics dt {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--hero-muted);
  margin-bottom: 4px;
}
.pd-ot-truth-metrics dd {
  font-size: 15px;
  font-weight: 600;
  margin: 0;
  color: var(--hero-text);
}
.pd-ot-truth-sub {
  font-size: 12px;
  color: var(--hero-muted);
  margin: 0;
}
.pd-ot-rail-label { margin: 8px 0 12px; }
.pd-ot-rail {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
  margin-bottom: 16px;
}
.pd-ot-role {
  flex: 1 1 auto;
  min-width: 0;
  max-width: 140px;
  padding: 10px 8px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--hero-muted);
  font-family: inherit;
  cursor: pointer;
  transition: border-color 0.3s ease, background 0.3s ease, color 0.3s ease, transform 0.3s ease;
}
.pd-ot-role-short {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.pd-ot-role-full {
  display: block;
  font-size: 10px;
  margin-top: 3px;
  opacity: 0.85;
  line-height: 1.3;
}
.pd-ot-role:hover,
.pd-ot-role:focus-visible {
  border-color: rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.06);
  color: var(--hero-text);
  outline: none;
}
.pd-ot-role:focus-visible {
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.35);
}
.pd-ot-role.is-active,
.pd-ot-viz[data-stage^="role-"] .pd-ot-role.is-active {
  border-color: rgba(37, 99, 235, 0.55);
  background: rgba(37, 99, 235, 0.12);
  color: var(--hero-text);
  transform: translateY(-1px);
}
.pd-ot-viz[data-stage="conclusion"] .pd-ot-role {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.05);
  color: var(--hero-text);
}
.pd-ot-lens {
  min-height: 100px;
  max-width: 480px;
  margin: 0 auto 20px;
  padding: 16px 18px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  transition: opacity 0.35s ease;
}
.pd-ot-lens-panel { text-align: center; }
.pd-ot-lens-role {
  font-size: 12px;
  font-weight: 600;
  color: var(--hero-muted);
  margin: 0 0 6px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.pd-ot-lens-question {
  font-size: 16px;
  font-weight: 600;
  color: var(--hero-text);
  margin: 0 0 12px;
  line-height: 1.4;
}
.pd-ot-lens-signals {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}
.pd-ot-lens-signals li {
  font-size: 11px;
  color: var(--hero-muted);
  padding: 5px 10px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.04);
}
.pd-ot-static { display: none; }
.pd-ot-conclusion {
  font-size: 14px;
  color: var(--hero-muted);
  margin: 0;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.pd-ot-viz[data-stage="conclusion"] .pd-ot-conclusion {
  opacity: 1;
  transform: translateY(0);
}
.pd-ot-conclusion strong {
  color: var(--hero-text);
  letter-spacing: 0.02em;
}
.pd-ot-note { margin-top: 14px; margin-bottom: 0; font-size: 12px; color: var(--hero-muted); }
.pd-ot-viz--static .pd-ot-lens,
.pd-ot-viz--static .pd-ot-rail,
.pd-ot-viz--static .pd-ot-rail-label { display: none; }
.pd-ot-viz--static .pd-ot-static {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 420px;
  margin: 20px auto;
  text-align: center;
}
.pd-ot-viz--static .pd-ot-static-role p {
  font-size: 14px;
  color: var(--hero-text);
  margin: 4px 0 0;
  font-weight: 500;
}
.pd-ot-viz--static .pd-ot-conclusion {
  opacity: 1;
  transform: none;
}

.pd-evidence-trigger {
  display: inline-block;
  margin-top: 16px;
  padding: 0;
  border: none;
  background: none;
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  cursor: pointer;
}
.pd-evidence-trigger:hover { text-decoration: underline; }
.pd-evidence-trigger:focus-visible {
  outline: 2px solid rgba(37, 99, 235, 0.4);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ── Delivery Intelligence — centered hero ── */
.pd-hero--center .pd-hero-inner {
  grid-template-columns: 1fr;
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}
.pd-hero--center .prod-body {
  color: var(--hero-muted);
  margin-top: 12px;
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}
.pd-hero--center .pd-hero-tagline {
  margin-top: 16px;
  font-size: 14px;
}

/* ── Delivery Intelligence — section 2 signature visual ── */
.pd-section--di-viz {
  padding-top: 64px;
  padding-bottom: 64px;
}
.pd-section--di-viz .prod-section-head {
  margin-bottom: 32px;
}

/* DI — anchor-based flow diagrams */
.pd-di-flow {
  position: relative;
  max-width: 920px;
  margin: 0 auto;
  isolation: isolate;
}
.pd-di-flow-arrows {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: visible;
}
.pd-di-flow-arrows path {
  fill: none;
  stroke: var(--primary);
  stroke-width: 1.5;
  stroke-dasharray: 6 5;
  stroke-linecap: round;
  animation: pdDiDashMove 4s linear infinite;
  transition: opacity 0.6s ease;
}
.pd-di-flow--rel[data-stage="isolated"] .pd-di-flow-arrows path { opacity: 0; }
.pd-di-flow--rel[data-stage="connect"] .pd-di-flow-arrows path { opacity: 0.45; }
.pd-di-flow--rel[data-stage="pattern"] .pd-di-flow-arrows path,
.pd-di-flow--rel[data-stage="finding"] .pd-di-flow-arrows path,
.pd-di-flow--rel[data-stage="impact"] .pd-di-flow-arrows path { opacity: 0.55; }
@media (prefers-reduced-motion: reduce) {
  .pd-di-flow-arrows path { animation: none; }
}
@keyframes pdDiDashMove { to { stroke-dashoffset: -22; } }

.pd-di-flow-grid {
  position: relative;
  z-index: 1;
  display: grid;
}
.pd-di-flow-step {
  position: relative;
  max-width: 210px;
  width: 100%;
  background: var(--flow-bg, #eef2ff);
  border: 1.5px solid var(--flow-border, #c7d2fe);
  border-radius: 14px;
  padding: 16px 18px;
  text-align: left;
  transition: opacity 0.5s ease, box-shadow 0.5s ease, border-color 0.5s ease;
}
.pd-di-flow-role {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 6px;
}
.pd-di-flow-step h3 {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.35;
  margin-bottom: 4px;
  color: var(--primary);
}
.pd-di-flow-step p {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.4;
  margin: 0;
}
.pd-di-flow-step.featured {
  background: var(--surface);
  border-color: var(--border);
  box-shadow: 0 12px 32px rgba(17, 24, 39, 0.1);
  max-width: 240px;
  z-index: 2;
}
.pd-di-flow-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: rgba(37, 99, 235, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  margin-bottom: 10px;
  color: var(--accent);
}
.pd-di-flow-anchor {
  position: absolute;
  width: 1px;
  height: 1px;
  pointer-events: none;
}
.pd-di-flow-anchor--out-r { right: 0; top: 50%; }
.pd-di-flow-anchor--in-l { left: 0; top: 50%; }
.pd-di-flow-anchor--out-b { bottom: 0; left: 50%; }
.pd-di-flow-anchor--in-t { top: 0; left: 50%; }
.pd-di-flow-anchor--out-br { right: 0; bottom: 0; }
.pd-di-flow-anchor--out-bl { left: 0; bottom: 0; }
.pd-di-flow-anchor--out-tr { right: 0; top: 0; }
.pd-di-flow-anchor--out-tl { left: 0; top: 0; }
.pd-di-flow-anchor--in-tl { left: 0; top: 0; }
.pd-di-flow-anchor--in-tr { right: 0; top: 0; }
.pd-di-flow-anchor--in-bl { left: 0; bottom: 0; }
.pd-di-flow-anchor--in-br { right: 0; bottom: 0; }

/* Signature — Signals → Pattern → Diagnosis → Impact */
.pd-di-flow--sig .pd-di-flow-grid {
  grid-template-columns: minmax(0, 210px) 1fr minmax(0, 240px) minmax(0, 210px);
  grid-template-rows: auto auto;
  gap: 16px 20px;
  align-items: center;
  min-height: 280px;
  padding-bottom: 28px;
}
.pd-di-flow--sig .pd-di-flow-step--signals { grid-column: 1; grid-row: 1; justify-self: start; }
.pd-di-flow--sig .pd-di-flow-step--pattern { grid-column: 1; grid-row: 2; justify-self: start; }
.pd-di-flow--sig .pd-di-flow-step--diagnosis {
  grid-column: 2 / 4;
  grid-row: 1 / 3;
  justify-self: center;
  align-self: center;
}
.pd-di-flow--sig .pd-di-flow-step--impact {
  grid-column: 4;
  grid-row: 1 / 3;
  justify-self: end;
  align-self: center;
}

/* Relationship — stable hub-and-spoke geometry */
.pd-di-flow--rel {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.pd-di-flow--rel .pd-di-flow-grid {
  grid-template-columns: minmax(0, 210px) minmax(0, 240px) minmax(0, 210px);
  grid-template-rows: auto auto auto auto;
  gap: 18px 24px;
  align-items: center;
  width: fit-content;
  max-width: 100%;
  margin-inline: auto;
  min-height: 400px;
  padding-bottom: 28px;
}
.pd-di-flow--rel .pd-di-flow-step--execution { grid-column: 1; grid-row: 1; justify-self: start; }
.pd-di-flow--rel .pd-di-flow-step--dependencies { grid-column: 3; grid-row: 1; justify-self: end; }
.pd-di-flow--rel .pd-di-flow-step--pattern {
  grid-column: 2;
  grid-row: 2;
  justify-self: center;
}
.pd-di-flow--rel .pd-di-flow-step--reviews { grid-column: 1; grid-row: 3; justify-self: start; }
.pd-di-flow--rel .pd-di-flow-step--work { grid-column: 3; grid-row: 3; justify-self: end; }
.pd-di-flow--rel .pd-di-flow-step--commitment-impact {
  grid-column: 2;
  grid-row: 4;
  justify-self: center;
  max-width: 220px;
}

/* Relationship animation states — geometry stays fixed */
.pd-di-flow--rel[data-stage="isolated"] .pd-di-flow-step { opacity: 1; }
.pd-di-flow--rel[data-stage="connect"] .pd-di-flow-step { opacity: 1; }
.pd-di-flow--rel[data-stage="pattern"] .pd-di-flow-step:not(.featured):not(.pd-di-flow-step--commitment-impact) { opacity: 0.72; }
.pd-di-flow--rel[data-stage="pattern"] .pd-di-flow-step--pattern { opacity: 1; box-shadow: 0 16px 40px rgba(17, 24, 39, 0.12); }
.pd-di-flow--rel[data-stage="finding"] .pd-di-flow-step:not(.featured) { opacity: 0.65; }
.pd-di-flow--rel[data-stage="finding"] .pd-di-flow-step--pattern {
  opacity: 1;
  border-color: rgba(37, 99, 235, 0.35);
  box-shadow: 0 16px 40px rgba(37, 99, 235, 0.1);
}
.pd-di-flow--rel[data-stage="impact"] .pd-di-flow-step:not(.pd-di-flow-step--commitment-impact) { opacity: 0.62; }
.pd-di-flow--rel[data-stage="impact"] .pd-di-flow-step--commitment-impact {
  opacity: 1;
  background: var(--surface);
  border-color: var(--border);
  box-shadow: 0 8px 24px rgba(17, 24, 39, 0.08);
}
.pd-di-flow--rel.pd-di-flow--static[data-stage="impact"] .pd-di-flow-step { opacity: 1; }

.pd-di-flow .prod-note {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  text-align: center;
  margin: 0;
  font-size: 12px;
}

/* Diagnosis reasoning — commitment → evidence → diagnosis */
.pd-di-reasoning {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 12px;
  max-width: 820px;
  margin: 0 auto;
}
.pd-di-reason-step {
  flex: 1;
  min-width: 0;
  padding: 18px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--background);
  text-align: center;
}
.pd-di-reason-step--feat {
  border-color: rgba(37, 99, 235, 0.3);
  background: rgba(37, 99, 235, 0.04);
}
.pd-di-reason-step .pd-status { margin: 8px 0; }
.pd-di-reason-step strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  margin-top: 8px;
  line-height: 1.35;
}
.pd-di-reason-ev {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  text-align: left;
}
.pd-di-reason-link {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

/* Signal prioritization */
.pd-di-signal-flow {
  max-width: 820px;
  margin: 0 auto;
}
.pd-di-signal-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}
.pd-di-signal-card {
  padding: 14px 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--background);
  text-align: left;
}
.pd-di-signal-card strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  margin: 6px 0 4px;
}
.pd-di-signal-card p {
  font-size: 12px;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.45;
}
.pd-di-signal--high { border-left: 3px solid var(--warning); }
.pd-di-signal--med { border-left: 3px solid var(--accent); }
.pd-di-signal--low { border-left: 3px solid var(--border); opacity: 0.85; }
.pd-di-signal-path {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}
.pd-di-signal-arrow { color: var(--accent); font-weight: 400; }

/* Delivery impact chain */
.pd-di-impact-chain {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 8px;
  max-width: 820px;
  margin: 0 auto;
}
.pd-di-impact-step {
  flex: 1;
  min-width: 0;
  padding: 16px 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--background);
  text-align: center;
}
.pd-di-impact-step strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  margin: 6px 0 0;
  line-height: 1.35;
}
.pd-di-impact-step--feat {
  border-color: rgba(217, 119, 6, 0.35);
  background: rgba(217, 119, 6, 0.04);
}
.pd-di-impact-link {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

/* Decision lenses */
.pd-di-role-rail { margin-top: 0; }
.pd-di-role-rail-items {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}
.pd-di-role-item {
  flex: 1 1 140px;
  max-width: 200px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
  text-align: center;
}
.pd-di-role-item .pd-meta-label { color: var(--hero-muted); }
.pd-di-role-item p {
  font-size: 13px;
  font-weight: 500;
  color: var(--hero-text);
  margin: 6px 0 0;
  line-height: 1.4;
}

/* ── Integrations page ── */
.pd-hero-question {
  font-size: 15px;
  font-weight: 500;
  color: var(--hero-muted);
  margin: 0 0 12px;
  line-height: 1.5;
}
.pd-section-cta--dual {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  align-items: center;
}

/* Hero ecosystem */
.pd-int-eco {
  position: relative;
  width: 100%;
  max-width: 420px;
  aspect-ratio: 1;
  margin: 0 auto;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
}
.pd-int-eco-svg {
  position: absolute;
  inset: 12px;
  width: calc(100% - 24px);
  height: calc(100% - 24px);
  pointer-events: none;
}
.pd-int-eco-path {
  fill: none;
  stroke: rgba(71, 85, 105, 0.52);
  stroke-width: 1.75;
  stroke-dasharray: 5 5;
  animation: pdIntEcoFlow 5s linear infinite;
}
.pd-int-eco-path:nth-child(odd) { animation-delay: -1.2s; }
.pd-int-eco-path:nth-child(3n) { animation-delay: -2.4s; }
@keyframes pdIntEcoFlow {
  to { stroke-dashoffset: -20; }
}
.pd-int-eco-hub {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  z-index: 2;
  padding: 14px 18px;
  border: 1px solid rgba(37, 99, 235, 0.35);
  border-radius: 12px;
  background: rgba(37, 99, 235, 0.08);
  box-shadow: 0 0 0 8px var(--surface);
}
.pd-int-eco-mark {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--primary);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.pd-int-eco-hub strong {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--primary);
}
.pd-int-eco-sub {
  font-size: 10px;
  color: var(--text-muted);
  text-align: center;
}
.pd-int-eco-nodes { position: absolute; inset: 12px; }
.pd-int-eco-node {
  position: absolute;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  z-index: 1;
}
.pd-int-eco-node span:first-child {
  font-size: 10px;
  font-weight: 600;
  padding: 5px 8px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--background);
  color: var(--text-secondary);
  white-space: nowrap;
}
.pd-int-eco-node--available span:first-child {
  border-color: rgba(37, 99, 235, 0.45);
  color: var(--primary);
  background: rgba(37, 99, 235, 0.08);
  font-weight: 700;
}
.pd-int-eco-node--context span:first-child {
  opacity: 0.72;
  color: var(--text-muted);
}
.pd-int-eco-badge {
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--primary);
}
.pd-int-eco .prod-note {
  position: absolute;
  bottom: 8px;
  left: 12px;
  right: 12px;
  text-align: center;
  font-size: 10px;
  margin: 0;
}

/* Principle relationship — Section 2 */
.pd-int-relationship {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  max-width: 480px;
  margin: 0 auto;
  text-align: center;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
}
.pd-int-rel-feat {
  color: var(--primary);
  font-size: 14px;
  font-weight: 700;
}
.pd-int-rel-arrow {
  font-size: 14px;
  color: var(--accent);
  opacity: 0.5;
  line-height: 1;
}

/* Continuous sync — Section 3 */
.pd-int-sync {
  max-width: 640px;
  margin: 0 auto;
  padding: 24px 28px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
}
.pd-int-sync-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}
.pd-int-sync-steps::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: var(--border);
  pointer-events: none;
}
.pd-int-sync-steps::after {
  content: "";
  position: absolute;
  left: 11px;
  top: 6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0;
  pointer-events: none;
  animation: pdIntSyncPulse 6s ease-in-out infinite;
}
@keyframes pdIntSyncPulse {
  0%, 8% { top: 6px; opacity: 0; }
  12% { opacity: 0.85; }
  88% { top: calc(100% - 16px); opacity: 0.85; }
  100% { top: calc(100% - 6px); opacity: 0; }
}
.pd-int-sync-step {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 16px;
  align-items: start;
  padding-bottom: 22px;
}
.pd-int-sync-step:last-child { padding-bottom: 0; }
.pd-int-sync-marker {
  display: flex;
  justify-content: center;
  padding-top: 3px;
}
.pd-int-sync-dot {
  flex-shrink: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid #cbd5e1;
  background: var(--surface);
  position: relative;
  z-index: 1;
  transition: border-color 0.4s, background 0.4s, box-shadow 0.4s;
}
.pd-int-sync-content strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: #374151;
  margin-bottom: 4px;
  transition: color 0.4s;
}
.pd-int-sync-content p {
  font-size: 13px;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.45;
}
.pd-int-sync[data-stage="connect"] .pd-int-sync-step[data-step="connect"] .pd-int-sync-content strong,
.pd-int-sync[data-stage="sync"] .pd-int-sync-step[data-step="sync"] .pd-int-sync-content strong,
.pd-int-sync[data-stage="stream"] .pd-int-sync-step[data-step="stream"] .pd-int-sync-content strong,
.pd-int-sync[data-stage="current"] .pd-int-sync-step[data-step="current"] .pd-int-sync-content strong {
  color: var(--text-primary);
}
.pd-int-sync[data-stage="connect"] .pd-int-sync-step[data-step="connect"] .pd-int-sync-dot,
.pd-int-sync[data-stage="sync"] .pd-int-sync-step[data-step="sync"] .pd-int-sync-dot,
.pd-int-sync[data-stage="stream"] .pd-int-sync-step[data-step="stream"] .pd-int-sync-dot,
.pd-int-sync[data-stage="current"] .pd-int-sync-step[data-step="current"] .pd-int-sync-dot {
  border-color: var(--primary);
  background: rgba(37, 99, 235, 0.18);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

/* Data trust — Section 4 (centered principle) */
.pd-int-trust-head { max-width: 600px; }
.pd-int-trust-flow { margin-top: 8px; }

/* Normalization — Section 4 */
.pd-int-normalize {
  max-width: 820px;
  margin: 0 auto;
  padding: 24px 20px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
}
.pd-int-norm-sources {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.pd-int-norm-source {
  text-align: center;
  padding: 12px 8px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--background);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color 0.5s ease;
}
.pd-int-norm-provider {
  display: block;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.pd-int-norm-source strong {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
}
.pd-int-norm-converge {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  padding: 8px 0;
  text-align: center;
}
.pd-int-norm-arrow {
  font-size: 14px;
  color: var(--accent);
  opacity: 0.45;
  animation: pdIntNormArrow 3s ease-in-out infinite;
}
.pd-int-norm-arrow:nth-child(2) { animation-delay: 0.2s; }
.pd-int-norm-arrow:nth-child(3) { animation-delay: 0.4s; }
.pd-int-norm-arrow:nth-child(4) { animation-delay: 0.6s; }
@keyframes pdIntNormArrow {
  0%, 100% { opacity: 0.25; transform: translateY(0); }
  50% { opacity: 0.85; transform: translateY(3px); }
}
.pd-int-norm-model {
  text-align: center;
  padding: 18px 16px;
  margin: 4px 0 16px;
  border: 1px solid rgba(37, 99, 235, 0.35);
  border-radius: 12px;
  background: rgba(37, 99, 235, 0.06);
  transition: box-shadow 0.5s ease;
}
.pd-int-norm-model strong {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
  margin: 4px 0 6px;
}
.pd-int-norm-model p {
  font-size: 12px;
  color: var(--text-secondary);
  margin: 0;
}
.pd-int-norm-out {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.pd-int-normalize[data-stage="converge"] .pd-int-norm-source {
  opacity: 0.55;
  transform: scale(0.96);
  border-color: rgba(37, 99, 235, 0.2);
}
.pd-int-normalize[data-stage="converge"] .pd-int-norm-model {
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.08);
}

/* Organization stack — Section 6 */
.pd-int-org {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 340px;
  margin: 0 auto;
  padding: 28px 20px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
}
.pd-int-org-item {
  width: 100%;
  text-align: center;
  font-size: 13px;
  font-weight: 600;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--background);
  color: var(--text-secondary);
}
.pd-int-org-item--root {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.pd-int-org-item--feat {
  color: var(--primary);
  border-color: rgba(37, 99, 235, 0.35);
  background: rgba(37, 99, 235, 0.06);
}
.pd-int-org-arrow {
  padding: 5px 0;
  color: var(--accent);
  font-size: 14px;
  opacity: 0.55;
}

/* Ecosystem editorial — Section 5 */
.pd-int-eco-editorial {
  max-width: 560px;
  margin: 0 auto;
  padding: 32px 28px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  text-align: center;
}
.pd-int-eco-editorial-kicker {
  margin-bottom: 28px;
  letter-spacing: 0.08em;
}
.pd-int-eco-editorial-group + .pd-int-eco-editorial-group {
  margin-top: 28px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}
.pd-int-eco-editorial-group--today .pd-int-eco-editorial-label {
  color: var(--primary);
}
.pd-int-eco-editorial-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0 0 10px;
}
.pd-int-eco-editorial-systems {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
  margin: 0;
  line-height: 1.6;
}
.pd-int-eco-editorial-group--today .pd-int-eco-editorial-systems {
  font-weight: 600;
  color: var(--primary);
}
.pd-int-eco-editorial-systems--sub {
  margin-top: 6px;
  font-size: 14px;
  font-weight: 400;
  color: var(--text-secondary);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .pd-hero-inner,
  .prod-split { grid-template-columns: 1fr; }
  .pd-eval-model { grid-template-columns: repeat(2, 1fr); }
  .pd-trust-problem { grid-template-columns: 1fr; }
  .pd-trust-problem-bridge { flex-direction: row; max-width: none; }
  .pd-trust-problem-line { width: 48px; height: 2px; }
  .pd-commit-compare { grid-template-columns: 1fr; }
  .pd-pos-brief-row { grid-template-columns: 1fr; gap: 8px; }
  .pd-evidence-converge {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .pd-evidence-converge-col--left li,
  .pd-evidence-converge-col--right li { text-align: center; padding: 8px 12px; }
  .pd-evidence-converge-col--left li::after,
  .pd-evidence-converge-col--right li::before { display: none; }
  .pd-evidence-converge-hub { order: -1; }
}

@media (max-width: 768px) {
  .pd-hero { padding-top: 88px; }
  .pd-eval-model,
  .pd-findings-grid { grid-template-columns: 1fr; }
  .pd-explain-flow { flex-direction: column; }
  .pd-explain-arrow { transform: rotate(90deg); }
  .pd-journey-rail { flex-direction: column; align-items: stretch; }
  .pd-journey-step { max-width: none; }
  .pd-timeline {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .pd-timeline-center {
    padding-top: 0;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 16px 0;
  }
  .pd-timeline-direction {
    flex-basis: 100%;
    border-top: none;
    padding-top: 0;
    margin-top: 0;
  }
  .pd-commit-artifact-metrics { grid-template-columns: 1fr; }
  .pd-commit-artifact-state { grid-column: span 1; }
  .pd-evidence-artifact-sources,
  .pd-evidence-artifact-outcome { grid-template-columns: 1fr; }
  .pd-evidence-artifact-foot { flex-direction: column; align-items: flex-start; }
  .pd-concept-flow { gap: 6px 4px; }
  .pd-concept-flow-item { font-size: 12px; padding: 6px 10px; }
  .pd-section--ot { min-height: 0; }
  .pd-ot-rail { flex-direction: column; align-items: stretch; max-width: 360px; margin-left: auto; margin-right: auto; }
  .pd-ot-role { max-width: none; }
  .pd-ot-truth-metrics { grid-template-columns: 1fr; gap: 8px; }
  .pd-section--di-viz { padding-top: 48px; padding-bottom: 48px; }
  .pd-di-flow--sig .pd-di-flow-grid,
  .pd-di-flow--rel .pd-di-flow-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
    gap: 14px;
    min-height: 0;
    max-width: 360px;
    margin: 0 auto;
    padding-bottom: 0;
  }
  .pd-di-flow--sig .pd-di-flow-step,
  .pd-di-flow--rel .pd-di-flow-step {
    grid-column: 1 !important;
    grid-row: auto !important;
    max-width: 100% !important;
    justify-self: stretch !important;
    align-self: stretch !important;
  }
  .pd-di-flow--sig .pd-di-flow-step--signals { order: 1; }
  .pd-di-flow--sig .pd-di-flow-step--pattern { order: 2; }
  .pd-di-flow--sig .pd-di-flow-step--diagnosis { order: 3; }
  .pd-di-flow--sig .pd-di-flow-step--impact { order: 4; }
  .pd-di-flow--rel .pd-di-flow-step--execution { order: 1; }
  .pd-di-flow--rel .pd-di-flow-step--dependencies { order: 2; }
  .pd-di-flow--rel .pd-di-flow-step--pattern { order: 3; }
  .pd-di-flow--rel .pd-di-flow-step--reviews { order: 4; }
  .pd-di-flow--rel .pd-di-flow-step--work { order: 5; }
  .pd-di-flow--rel .pd-di-flow-step--commitment-impact { order: 6; }
  .pd-di-flow-arrows { display: none; }
  .pd-di-flow .prod-note { position: static; margin-top: 8px; }
  .pd-di-flow--rel[data-stage] .pd-di-flow-step { opacity: 1 !important; box-shadow: none; }
  .pd-di-reasoning,
  .pd-di-impact-chain {
    flex-direction: column;
    align-items: center;
    max-width: 360px;
    margin-left: auto;
    margin-right: auto;
  }
  .pd-di-reason-link,
  .pd-di-impact-link { padding: 4px 0; }
  .pd-di-signal-cards { grid-template-columns: 1fr; }
  .pd-di-role-rail-items { flex-direction: column; align-items: stretch; }
  .pd-di-role-item { max-width: none; }
  .pd-di-rel-row { flex-direction: column; align-items: center; }
  .pd-di-rel-graph { height: 180px; }
  .pd-di-impact-chain { max-width: 360px; }
  .pd-int-eco { max-width: 360px; }
  .pd-int-eco-node span:first-child { font-size: 9px; padding: 4px 6px; }
  .pd-int-eco-badge { font-size: 7px; }
  .pd-int-norm-sources { grid-template-columns: repeat(2, 1fr); }
  .pd-int-norm-converge { grid-template-columns: repeat(2, 1fr); }
  .pd-int-eco-editorial { padding: 24px 20px; }
  .pd-int-sync { padding: 20px 20px 20px 24px; }
  .pd-section-cta--dual { flex-direction: column; }
  .pd-section-cta--dual .btn { width: 100%; max-width: 320px; }
}

@media (prefers-reduced-motion: reduce) {
  .prod-animate { opacity: 1; transform: none; transition: none; }
  .pd-int-eco-path,
  .pd-int-sync-steps::after,
  .pd-int-norm-arrow { animation: none; }
}