/* HPB implementation retrospective. All diagrams are readable HTML, with no runtime library. */
.pipeline-design {
  --pipeline-accent: #17685f;
  --pipeline-wash: #eef5f3;
}
.pipeline-hero {
  padding-block: 44px 40px;
}
.pipeline-hero h1 {
  margin-top: 18px;
  font-size: clamp(2.5rem, 4.5vw, 4rem);
  line-height: 1.12;
}
.pipeline-intro {
  max-width: 850px;
  margin-top: 24px;
  font-size: 23px;
  line-height: 1.55;
}
.pipeline-context {
  max-width: 840px;
  margin-top: 22px;
  color: var(--muted);
}
.pipeline-context a,
.pipeline-design .text-link,
.pipeline-design .section-kicker {
  color: var(--pipeline-accent);
}
.pipeline-context a {
  text-underline-offset: 4px;
}

/* Full-width diagrams beneath a compact contents strip; shared mobile menu remains available. */
.pipeline-design .case-grid {
  display: block;
}
.pipeline-design .case-nav {
  position: static;
  margin-bottom: 24px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
.pipeline-design .case-nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
}
.pipeline-design .case-nav-links a {
  padding: 8px 0;
  margin: 0;
  border-left: 0;
  border-bottom: 2px solid transparent;
}
.pipeline-design .case-nav a[aria-current='true'] {
  color: var(--pipeline-accent);
  border-color: var(--pipeline-accent);
}
.pipeline-design .case-section > h2 {
  max-width: 950px;
}
.pipeline-design .case-section > .body-copy,
.pipeline-design .case-section > .lead {
  max-width: 900px;
}
.pipeline-design .body-copy + .body-copy {
  margin-top: 18px;
}
.pipeline-design .case-section > .text-link {
  margin-top: 22px;
}

/* Host preparation and script boundaries. */
.implementation-list {
  margin-top: 28px;
}
.implementation-list > div {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 24px;
  padding-block: 20px;
  border-top: 1px solid var(--line);
}
.implementation-list dt {
  font-weight: 600;
  color: var(--pipeline-accent);
}
.implementation-list dd {
  margin: 0;
  color: var(--muted);
}
.implementation-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
  margin-block: 30px;
}
.implementation-pair article {
  border-top: 2px solid #b9d1cb;
  padding-top: 20px;
}
.implementation-pair h3 {
  margin-block: 12px 16px;
  font-size: 23px;
  line-height: 1.35;
}
.implementation-pair p:not(.eyebrow) {
  color: var(--muted);
}

/* Management path and separate runners; this describes roles, not network topology. */
.access-figure,
.sit-flow,
.release-figure {
  margin-block: 30px;
  padding: 28px;
  border: 1px solid var(--line);
  background: #fbfcfc;
}
.pipeline-design figcaption {
  margin-bottom: 24px;
  color: var(--muted);
  font: 12px/1.6 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.access-path {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  padding: 20px;
  background: var(--pipeline-wash);
}
.runner-grid,
.release-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
.runner-grid > div {
  padding: 18px;
  text-align: center;
  border: 1px solid #b9d1cb;
  background: white;
}
.runner-grid strong {
  display: block;
  margin-top: 10px;
}

/* Pipeline sequence: rows run left to right, then continue down to the next labelled group. */
.flow-trigger,
.flow-result {
  max-width: 480px;
  margin-inline: auto;
  padding: 18px 24px;
  text-align: center;
  background: var(--pipeline-wash);
  border: 1px solid #b9d1cb;
}
.flow-trigger > * {
  display: block;
}
.flow-trigger strong {
  margin-block: 6px;
  font-size: 20px;
}
.flow-trigger > span:last-child {
  color: var(--muted);
  font-size: 14px;
}
.flow-connector {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding-block: 18px;
  color: var(--pipeline-accent);
  font-size: 14px;
  line-height: 1.5;
}
.flow-connector > span {
  font-size: 24px;
}
.pipeline-row {
  display: grid;
  gap: 26px;
  padding: 0;
  list-style: none;
}
.pipeline-row-three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.pipeline-row-four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.pipeline-row li {
  position: relative;
  padding: 18px;
  border-top: 3px solid var(--pipeline-accent);
  background: #eaf0f4;
}
.pipeline-row li:not(:last-child)::after {
  content: '→';
  position: absolute;
  right: -23px;
  top: 45%;
  color: var(--pipeline-accent);
}
.stage-number {
  display: block;
  margin-bottom: 10px;
  color: var(--pipeline-accent);
  font: 12px/1.5 var(--mono);
}
.pipeline-row strong {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.45;
}
.flow-result {
  color: white;
  background: var(--pipeline-accent);
}
.design-note {
  padding: 22px 26px;
  background: var(--pipeline-wash);
  border-left: 3px solid var(--pipeline-accent);
}
.design-note h3 {
  margin-bottom: 12px;
  font-size: 20px;
}
.design-note p {
  color: var(--muted);
}

/* Same release source with three separate builds; there are no promotion arrows between stages. */
.release-source {
  padding: 20px;
  text-align: center;
  background: var(--pipeline-wash);
}
.release-source span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 14px;
}
.release-grid article {
  text-align: center;
}
.release-arrow {
  display: block;
  padding-block: 10px;
  color: var(--pipeline-accent);
  font-size: 24px;
}
.release-grid h3 {
  font-size: 22px;
}
.release-grid p {
  margin-block: 10px;
  color: var(--muted);
}
.release-control {
  display: block;
  padding: 12px;
  font-size: 14px;
  color: var(--pipeline-accent);
  border: 1px solid #b9d1cb;
}

/* Keep further questions distinct from the completed answers. */
.pending-inquiries {
  margin-top: 30px;
  padding: 20px 24px;
  border: 1px solid var(--line);
}
.pending-inquiries summary {
  cursor: pointer;
  font-weight: 600;
}
.pending-inquiries p {
  margin-top: 20px;
  color: var(--muted);
}
.pending-inquiries ul {
  padding-left: 22px;
  margin-top: 16px;
}
.pending-inquiries li + li {
  margin-top: 12px;
}
.pipeline-design .judgment-qa {
  margin-top: 28px;
}
.pipeline-design .qa-answer {
  max-width: 820px;
}
.pipeline-design .case-actions {
  gap: 28px;
}

@media (max-width: 760px) {
  .pipeline-design .case-nav {
    position: sticky;
    padding-bottom: 0;
  }
  .pipeline-design .case-nav-links {
    display: block;
  }
  .pipeline-design .case-nav-links a {
    padding: 10px;
    border-bottom: 0;
  }
  .pipeline-design .case-nav a[aria-current='true'] {
    background: var(--pipeline-wash);
  }
  .pipeline-hero {
    padding-block: 30px;
  }
  .pipeline-intro {
    font-size: 20px;
  }
  .implementation-list > div,
  .implementation-pair {
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
  }
  .access-figure,
  .sit-flow,
  .release-figure {
    padding: 20px;
  }
  .access-path {
    flex-wrap: wrap;
    gap: 12px;
    font-size: 14px;
  }
  .access-path > span:first-child {
    flex-basis: 100%;
    text-align: center;
  }
  .access-path > span:nth-child(2) {
    display: none;
  }
  .runner-grid {
    gap: 10px;
  }
  .runner-grid > div {
    padding: 14px 6px;
    font-size: 14px;
  }
  .pipeline-row-three,
  .pipeline-row-four,
  .release-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .pipeline-row li {
    display: flex;
    gap: 16px;
    align-items: center;
    border-top: 0;
    border-left: 3px solid var(--pipeline-accent);
  }
  .stage-number {
    margin-bottom: 0;
  }
  .pipeline-row li:not(:last-child)::after {
    content: '↓';
    top: auto;
    right: 50%;
    bottom: -26px;
  }
  .flow-connector {
    justify-content: flex-start;
  }
  .release-grid {
    gap: 0;
  }
  .release-grid article {
    padding-bottom: 10px;
  }
  .release-grid .release-arrow::after {
    content: ' Same release source';
    font-size: 13px;
  }
}
@media print {
  .pipeline-row,
  .implementation-pair article,
  .release-figure {
    break-inside: avoid;
  }
}