.page-process-checkpoints {
  --ckpt-rail-col: calc(var(--space-8) * 4);
  --ckpt-seam: var(--color-line);
}

.page-process-checkpoints .ckpt-top {
  padding-top: var(--space-4);
}

.page-process-checkpoints .ckpt-intro {
  display: grid;
  gap: var(--space-4);
  padding: var(--space-6) 0 var(--space-4);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-process-checkpoints .ckpt-intro__lead h1 {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  margin: var(--space-2) 0 var(--space-3);
  max-width: 24ch;
}

.page-process-checkpoints .ckpt-intro__text {
  max-width: var(--measure);
  color: var(--color-ink);
  line-height: var(--leading-body);
  margin: 0 0 var(--space-2);
}

.page-process-checkpoints .ckpt-intro__text a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-process-checkpoints .ckpt-intro__figure {
  margin: 0;
  border-radius: var(--radius-sm);
}

.page-process-checkpoints .ckpt-intro__figure .img-frame__media {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-process-checkpoints .ckpt-intro__figure .img-frame__caption {
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  padding-top: var(--space-1);
}

.page-process-checkpoints .ckpt-metrics {
  list-style: none;
  margin: var(--space-6) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--border-thin);
  background: var(--ckpt-seam);
  border: var(--border-thin) solid var(--ckpt-seam);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-process-checkpoints .ckpt-metric {
  background: var(--color-surface);
  padding: var(--space-3) var(--space-4);
  display: grid;
  gap: 2px;
  align-content: start;
}

.page-process-checkpoints .ckpt-metric .metric__value {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: 1.05;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}

.page-process-checkpoints .ckpt-metric .metric__label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

.page-process-checkpoints .ckpt-metric .metric__note {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-process-checkpoints .ckpt-metric:nth-child(1) .metric__value,
.page-process-checkpoints .ckpt-metric:nth-child(2) .metric__value {
  color: var(--color-primary);
}

.page-process-checkpoints .ckpt-metric:nth-child(3) .metric__value,
.page-process-checkpoints .ckpt-metric:nth-child(4) .metric__value {
  color: var(--color-accent);
}

.page-process-checkpoints .ckpt-layout {
  display: grid;
  gap: var(--space-6);
  padding-top: var(--section-y);
  padding-bottom: var(--section-y);
}

.page-process-checkpoints .ckpt-rail {
  border-top: calc(var(--border-thin) * 3) solid var(--color-primary);
  padding-top: var(--space-3);
}

.page-process-checkpoints .ckpt-rail__title {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.09em;
  color: var(--color-ink-muted);
  margin: 0 0 var(--space-2);
  padding-bottom: var(--space-1);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-process-checkpoints .ckpt-rail__list,
.page-process-checkpoints .ckpt-rail__sub {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-process-checkpoints .ckpt-rail__group + .ckpt-rail__group {
  margin-top: var(--space-3);
}

.page-process-checkpoints .ckpt-rail__group-link {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  text-decoration: none;
  padding-bottom: var(--space-1);
  border-bottom: var(--border-thin) solid var(--color-line);
  transition: color 160ms ease, border-color 160ms ease;
}

.page-process-checkpoints .ckpt-rail__group-link:hover,
.page-process-checkpoints .ckpt-rail__group-link:focus-visible {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.page-process-checkpoints .ckpt-rail__sub {
  margin-top: var(--space-1);
}

.page-process-checkpoints .ckpt-rail__sub li + li {
  margin-top: 1px;
}

.page-process-checkpoints .ckpt-rail__sub a {
  display: block;
  padding: var(--space-1) 0 var(--space-1) var(--space-2);
  border-left: var(--border-thin) solid transparent;
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  text-decoration: none;
  transition: color 160ms ease, border-color 160ms ease;
}

.page-process-checkpoints .ckpt-rail__sub a:hover,
.page-process-checkpoints .ckpt-rail__sub a:focus-visible {
  color: var(--color-accent);
  border-left-color: var(--color-accent);
}

.page-process-checkpoints .ckpt-rail__sub .mono {
  display: inline-block;
  min-width: 2.4em;
  color: var(--color-ink-muted);
  font-size: var(--text-xs);
}

.page-process-checkpoints .ckpt-rail__note {
  margin: var(--space-3) 0 0;
  font-size: var(--text-xs);
  line-height: 1.6;
  color: var(--color-ink-muted);
  padding-top: var(--space-2);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-process-checkpoints .ckpt-stream {
  display: grid;
  gap: var(--section-y);
  min-width: 0;
}

.page-process-checkpoints .ckpt-group,
.page-process-checkpoints .ckpt-section,
.page-process-checkpoints .ckpt-output,
.page-process-checkpoints .ckpt-node {
  scroll-margin-top: calc(var(--space-8) * 1.5);
}

.page-process-checkpoints .ckpt-group__head h2,
.page-process-checkpoints .ckpt-section__head h2,
.page-process-checkpoints .ckpt-output h2 {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
  margin: var(--space-2) 0 var(--space-3);
}

.page-process-checkpoints .ckpt-group__text,
.page-process-checkpoints .ckpt-section__text {
  max-width: var(--measure);
  margin: 0;
  color: var(--color-ink);
  line-height: var(--leading-body);
}

.page-process-checkpoints .ckpt-group__figure {
  margin: var(--space-4) 0 0;
  max-width: calc(var(--space-8) * 9);
  border-radius: var(--radius-sm);
}

.page-process-checkpoints .ckpt-group__figure--wide {
  max-width: 100%;
  margin-left: calc(var(--space-4) * -1);
  width: calc(100% + var(--space-4) * 2);
}

.page-process-checkpoints .ckpt-group__figure .img-frame__media {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-process-checkpoints .ckpt-group__figure .img-frame__caption {
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  padding-top: var(--space-1);
}

.page-process-checkpoints .ckpt-nodes {
  margin-top: var(--space-6);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-process-checkpoints .ckpt-node {
  padding: var(--space-4) 0;
  border-top: var(--border-thin) solid var(--color-line);
  transition: border-color 200ms ease;
}

.page-process-checkpoints .ckpt-node:hover {
  border-top-color: var(--color-primary);
}

.page-process-checkpoints .ckpt-node__head {
  display: grid;
  gap: var(--space-1);
  align-content: start;
}

.page-process-checkpoints .ckpt-node__idx {
  font-size: var(--text-sm);
  letter-spacing: 0.12em;
  color: var(--color-primary);
  transition: color 200ms ease;
}

.page-process-checkpoints .ckpt-node:hover .ckpt-node__idx {
  color: var(--color-accent);
}

.page-process-checkpoints .ckpt-node__title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
  margin: 0;
}

.page-process-checkpoints .ckpt-node__head .tag {
  justify-self: start;
  margin-top: var(--space-1);
}

.page-process-checkpoints .ckpt-node__body {
  margin-top: var(--space-2);
  min-width: 0;
}

.page-process-checkpoints .ckpt-node__verdict {
  margin: 0 0 var(--space-2);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  line-height: 1.5;
  color: var(--color-ink);
  padding-left: var(--space-3);
  border-left: calc(var(--border-thin) * 3) solid var(--color-accent);
}

.page-process-checkpoints .ckpt-node .accordion__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  width: 100%;
  padding: var(--space-2) 0;
  border: 0;
  border-top: var(--border-thin) solid var(--color-line);
  background: transparent;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-primary);
  text-align: left;
  cursor: pointer;
  transition: color 160ms ease;
}

.page-process-checkpoints .ckpt-node .accordion__trigger:hover,
.page-process-checkpoints .ckpt-node .accordion__trigger:focus-visible {
  color: var(--color-accent);
}

.page-process-checkpoints .ckpt-node .accordion__icon {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  line-height: 1;
  color: var(--color-ink-muted);
}

.page-process-checkpoints .ckpt-node .accordion__panel {
  padding-top: var(--space-2);
}

.page-process-checkpoints .ckpt-node__facts {
  margin: 0;
  display: grid;
  gap: 0;
}

.page-process-checkpoints .ckpt-node__facts dt {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
  padding: var(--space-2) 0 var(--space-1);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-process-checkpoints .ckpt-node__facts dd {
  margin: 0 0 var(--space-2);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink);
  max-width: var(--measure);
}

.page-process-checkpoints .ckpt-node__next {
  margin: var(--space-3) 0 0;
  padding: var(--space-2) var(--space-3);
  background: var(--color-primary-soft);
  border-left: calc(var(--border-thin) * 3) solid var(--color-primary);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink);
}

.page-process-checkpoints .ckpt-node__next a {
  color: var(--color-primary);
  font-weight: var(--weight-heading);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-process-checkpoints .ckpt-table-wrap {
  margin-top: var(--space-4);
  overflow-x: auto;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
}

.page-process-checkpoints .ckpt-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
}

.page-process-checkpoints .ckpt-table th,
.page-process-checkpoints .ckpt-table td {
  text-align: left;
  vertical-align: top;
  padding: var(--space-2) var(--space-3);
  border-bottom: var(--border-thin) solid var(--color-line);
  font-size: var(--text-sm);
  line-height: 1.55;
}

.page-process-checkpoints .ckpt-table thead th {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.07em;
  color: var(--color-ink-muted);
  background: var(--color-surface-alt);
  border-bottom-color: var(--color-line);
}

.page-process-checkpoints .ckpt-table tbody th {
  color: var(--color-ink);
  font-weight: var(--weight-heading);
  white-space: nowrap;
}

.page-process-checkpoints .ckpt-table tbody td {
  color: var(--color-ink-soft);
}

.page-process-checkpoints .ckpt-table tbody tr:last-child th,
.page-process-checkpoints .ckpt-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-process-checkpoints .ckpt-table tbody tr:hover th,
.page-process-checkpoints .ckpt-table tbody tr:hover td {
  background: var(--color-surface-alt);
}

.page-process-checkpoints .ckpt-output {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding: var(--space-6) var(--space-4);
  border-radius: var(--radius-md);
  border-left: calc(var(--border-thin) * 4) solid var(--color-contrast-accent);
}

.page-process-checkpoints .ckpt-output__label {
  color: var(--color-contrast-accent);
}

.page-process-checkpoints .ckpt-output h2 {
  color: var(--color-contrast-ink);
  font-size: var(--text-2xl);
  max-width: 26ch;
}

.page-process-checkpoints .ckpt-output__lead {
  max-width: var(--measure);
  margin: 0;
  color: var(--color-contrast-ink);
  line-height: var(--leading-body);
}

.page-process-checkpoints .ckpt-result {
  list-style: none;
  margin: var(--space-4) 0 0;
  padding: 0;
  display: grid;
  gap: var(--border-thin);
  background: var(--color-contrast-line);
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-process-checkpoints .ckpt-result li {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  border-left: calc(var(--border-thin) * 3) solid var(--color-contrast-accent);
}

.page-process-checkpoints .ckpt-result strong {
  color: var(--color-contrast-ink);
  font-weight: var(--weight-heading);
}

.page-process-checkpoints .ckpt-output__note {
  margin: var(--space-3) 0 0;
  font-size: var(--text-xs);
  line-height: 1.7;
  color: var(--color-contrast-ink);
  opacity: 0.78;
}

.page-process-checkpoints .ckpt-output__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: var(--space-4) 0 0;
}

.page-process-checkpoints .ckpt-output__actions .btn {
  text-decoration: none;
}

@media (min-width: 640px) {
  .page-process-checkpoints .ckpt-intro__figure {
    max-width: 560px;
  }

  .page-process-checkpoints .ckpt-node__facts {
    grid-template-columns: calc(var(--space-8) * 2.8) minmax(0, 1fr);
    column-gap: var(--space-3);
    align-items: start;
  }

  .page-process-checkpoints .ckpt-node__facts dt {
    grid-column: 1;
  }

  .page-process-checkpoints .ckpt-node__facts dd {
    grid-column: 2;
  }

  .page-process-checkpoints .ckpt-output {
    padding: var(--space-6);
  }
}

@media (min-width: 760px) {
  .page-process-checkpoints .ckpt-intro {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: end;
    gap: var(--space-6);
  }

  .page-process-checkpoints .ckpt-intro__figure {
    max-width: 100%;
  }

  .page-process-checkpoints .ckpt-metrics {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-process-checkpoints .ckpt-group__figure--wide {
    margin-left: 0;
    width: 100%;
  }

  .page-process-checkpoints .ckpt-node {
    display: grid;
    grid-template-columns: calc(var(--space-8) * 3.2) minmax(0, 1fr);
    column-gap: var(--space-6);
    align-items: start;
  }

  .page-process-checkpoints .ckpt-node__head {
    padding-top: 2px;
  }

  .page-process-checkpoints .ckpt-node__body {
    margin-top: 0;
  }
}

@media (min-width: 1000px) {
  .page-process-checkpoints .ckpt-layout {
    grid-template-columns: var(--ckpt-rail-col) minmax(0, 1fr);
    column-gap: var(--space-8);
    align-items: start;
  }

  .page-process-checkpoints .ckpt-rail {
    position: sticky;
    top: calc(var(--space-8) * 1.5);
    max-height: calc(100vh - var(--space-8) * 3);
    overflow-y: auto;
  }

  .page-process-checkpoints .ckpt-intro__figure .img-frame__media {
    aspect-ratio: 4 / 3;
  }
}