/* Hallmark · Round 10 · emergency-workbench refinement · green anchor · content-height ledger */

@media (min-width: 1024px) {
  #shortage {
    height: auto;
    min-height: 0;
    padding-bottom: var(--space-5);
  }

  #shortage .ledger-layout {
    display: block;
    min-height: 0;
  }

  #shortage .media-figure--store { display: none; }
  #products { padding-top: var(--space-5); }

  #kyusui-track .track-panel {
    min-height: 11.5rem;
    padding-block: var(--space-3) var(--space-4);
  }

  #haisui-track .track-panel {
    min-height: 15.5rem;
    padding-block: var(--space-5) var(--space-6);
  }

  .supply-method-section > .supply-method-axis {
    width: 100%;
    margin-left: 0;
  }

  .supply-method-axis__notes,
  .supply-method-axis__bridge,
  .supply-method-axis > figcaption {
    width: 58.333%;
    margin-left: auto;
  }
}

/* Hallmark · Round 11 · desktop chapter surfaces and quieter instruments */

/* Track options share one measuring surface. Separators are rules, not frames. */
#diagnostic .track-panel,
#diagnostic .choice-group {
  border: 0;
  background: var(--surface-work);
}

#diagnostic .choice-group label,
#diagnostic .choice-group label:has(input:checked),
#diagnostic .choice--unknown,
#diagnostic .choice--unknown:has(input:checked) {
  position: relative;
  margin: 0;
  padding: var(--space-3) var(--space-4);
  border: 0;
  border-radius: 0;
  background: transparent;
  font-weight: 400;
}

#diagnostic .choice-group label + label::before {
  content: "";
  position: absolute;
  top: 0;
  right: var(--space-4);
  left: var(--space-4);
  height: 1px;
  background: var(--color-rule-soft);
}

#diagnostic .choice-group label:has(input:checked),
#diagnostic .choice--unknown:has(input:checked) {
  background: var(--surface-active);
}

#diagnostic .choice-group label:has(input:checked)::after,
#diagnostic .choice--unknown:has(input:checked)::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 2px;
  height: auto;
  background: var(--role-position);
}

/* Desktop keeps the article grid, but each chapter owns its surface. */
@media (min-width: 768px) {
  .article-body.wrap {
    background: var(--surface-page);
  }

  .article-body > .doc-stage--instrument,
  .article-body > .comparison-axis-section,
  .article-body > .category-conclusion {
    box-sizing: border-box;
    margin-block: 28px;
    padding: var(--space-5);
    border: 0;
    background: var(--surface-work);
  }

  .article-body > .doc-stage--instrument + .comparison-axis-section,
  .article-body > .comparison-axis-section + .comparison-axis-section,
  .article-body > .comparison-axis-section + .category-conclusion {
    margin-top: 28px;
  }

  .comparison-axis-section > h2,
  .category-conclusion > h2 {
    margin-top: 0;
  }

  .comparison-axis-section .comparison-axis,
  .supply-method-section .supply-method-axis {
    padding-top: 0;
    border-top: 1px solid var(--color-rule);
  }

  .site-nav__inner {
    row-gap: 8px;
  }

  .site-rail__current-link {
    bottom: calc(var(--rail-rule-inset) + var(--rail-tick-length) + 4px);
  }

  .causal-rail {
    counter-reset: evidence-stage;
  }

  .causal-rail__stage {
    counter-increment: evidence-stage;
    display: flex;
    flex-direction: column;
  }

  .causal-rail__label::before {
    content: "0" counter(evidence-stage) "  ";
    font-family: var(--font-metadata);
    font-size: 1.0625rem;
    font-weight: 400;
  }

  .causal-rail__stage > a:not(.causal-rail__return) {
    display: flex;
    flex: 1 1 auto;
    flex-direction: column;
  }

  .causal-rail__stage h3 {
    margin-top: auto;
    font-weight: 600;
  }

  .causal-rail__stage p:not(.causal-rail__label) {
    font-weight: 400;
  }

  .causal-rail__return {
    margin-top: auto;
  }
}

:root[data-theme="dark"] .product-table__details summary {
  color: var(--color-ink);
  font-weight: 600;
  text-decoration: none;
}

@media (max-width: 767px) {
  .water-comparison__row > td.water-comparison__capacity {
    min-height: 48px;
  }

  .water-comparison__capacity-sightline {
    min-height: 44px;
    align-items: center;
  }

  .water-comparison__row-scale-labels {
    font-size: 14px;
    line-height: 1.4;
  }

  .water-comparison__capacity-value strong {
    font-size: 1.25rem;
  }

  .water-comparison__capacity-scale {
    position: relative;
    height: 12px;
    margin-top: 0;
    border-bottom: 1px solid var(--color-rule);
  }

  .water-comparison__capacity-scale::after {
    position: absolute;
    bottom: -1px;
    left: var(--capacity-ratio);
    width: 2px;
    height: 12px;
    border: 0;
    background: var(--role-position);
    transform: translateX(-1px);
  }

  .water-comparison__capacity-scale::before {
    content: "";
    position: absolute;
    bottom: -4px;
    left: var(--capacity-ratio);
    z-index: 1;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--role-position);
    transform: translateX(-4px);
  }

  .water-comparison__row > td.water-comparison__actions,
  .water-comparison__actions .product-table__action {
    grid-column: 1 / -1;
  }

  .water-comparison__actions .product-table__action {
    display: flex;
    justify-content: flex-end;
    width: 100%;
    padding-top: var(--space-3);
    border-top: 1px solid var(--color-rule-soft);
  }
}

/* Hallmark · Round 12 · unmistakable position and measured asymmetry */

/* The caption remains attached to the photograph at the 14px floor. */
.hero-block__caption {
  margin-top: 8px;
  padding: 0;
  font-size: 14px;
  line-height: 1.5;
}

@media (min-width: 768px) {
  /* Preserve each chapter's composition; vary only its outer surface span. */
  .category-water-system > .comparison-axis-section:first-of-type {
    width: 66.6667%;
    margin-right: auto;
    margin-left: 0;
  }

  .category-water-system > .supply-method-section {
    width: 83.3333%;
    margin-right: 0;
    margin-left: auto;
  }

  .category-water-system > .category-conclusion {
    width: 100%;
    margin-right: 0;
    margin-left: 0;
  }
}

@media (min-width: 1024px) {
  /* Question 3/12; controls and their shared state axis 9/12. */
  #kyusui-track > .wrap,
  #haisui-track > .wrap {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: var(--space-5);
    align-items: start;
  }

  #kyusui-track .section__head,
  #haisui-track .section__head {
    grid-column: 1 / span 3;
    width: auto;
  }

  #kyusui-track .track-layout,
  #haisui-track .track-layout {
    grid-column: 4 / -1;
    width: 100%;
  }

  #diagnostic .choice-group--axis {
    grid-template-columns: repeat(8, minmax(0, 1fr));
    gap: var(--space-3) 0;
  }

  #diagnostic .choice-group--axis .rail-mount--control {
    grid-column: 1 / -1;
    grid-row: 1;
  }

  #diagnostic .choice-group--axis > label {
    grid-row: 2;
    justify-self: stretch;
    width: auto;
    max-width: none;
    padding-inline: 0;
  }

  #diagnostic .choice-group--axis-suido > label:has(input[value="running"]) {
    grid-column: 3 / span 3;
  }

  #diagnostic .choice-group--axis-suido > label:has(input[value="stopped"]) {
    grid-column: 5 / span 3;
    flex-direction: row-reverse;
    text-align: right;
  }

  #diagnostic .choice-group--axis-hasui > label:has(input[value="safe"]) {
    grid-column: 3 / span 3;
  }

  #diagnostic .choice-group--axis-hasui > label:has(input[value="unknown"]) {
    grid-column: 6 / span 2;
  }

  #diagnostic .choice-group--axis-hasui > label:has(input[value="unsafe"]) {
    grid-column: 6 / span 2;
    flex-direction: row-reverse;
    text-align: right;
  }
}

@media (max-width: 767px) {
  /* Home shortlist: name band, then use / quantity / action; details stay secondary. */
  #products .product-table tbody {
    gap: 20px;
  }

  #products .product-table:not(.water-comparison) td:first-child {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-rows: auto auto auto auto;
    column-gap: var(--space-3);
    padding: 0;
  }

  #products .product-table:not(.water-comparison) .product-table__name {
    grid-column: 1 / -1;
    grid-row: 1;
    padding-block: 12px;
  }

  #products .product-table:not(.water-comparison) .product-table__mobile-compare {
    display: contents;
  }

  #products .product-table:not(.water-comparison) .product-table__mobile-purpose {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  #products .product-table:not(.water-comparison) .product-table__mobile-quantity {
    grid-column: 1 / -1;
    grid-row: 3;
  }

  #products .product-table:not(.water-comparison) .product-table__meta {
    grid-column: 1;
    grid-row: 4;
    align-self: center;
    padding-top: var(--space-3);
  }

  #products .product-table:not(.water-comparison) .product-table__details {
    grid-column: 2;
    grid-row: 4;
    align-self: center;
    margin: 0;
    padding-top: var(--space-3);
  }

  .product-table__details summary,
  :root[data-theme="dark"] .product-table__details summary {
    color: var(--color-ink-faint);
    font-weight: 600;
    text-decoration: none;
  }

  /* Water products: one quiet disclosure and one clearly routed purchase link. */
  .water-comparison__actions .product-table__action {
    margin-top: 0;
    padding-top: 8px;
  }
}

/* Hallmark · Round 14 · truthful capacity terminals and distinct chapter silhouettes */

/* A capacity scale carries independent observed values, never a filled 0–value span. */
.water-comparison__capacity-scale {
  position: relative;
}

.water-comparison__capacity-scale::before,
.water-comparison__capacity-scale::after {
  content: none;
}

.water-comparison__capacity-marker {
  position: absolute;
  bottom: calc(-1px + var(--capacity-marker-offset));
  left: var(--capacity-marker-ratio);
  width: 2px;
  height: 10px;
  background: var(--role-position);
  transform: translateX(-1px);
}

@media (min-width: 1024px) {
  /* TRACE 02 closes 24px sooner, keeping its diagnosis attached to CHAPTER 02. */
  #haisui-track {
    padding-bottom: var(--space-5);
  }
}

@media (max-width: 767px) {
  /* Keep all rail/content endpoints fixed while only the chapter surface expands. */
  .category-water-system > .comparison-axis-section:first-of-type {
    width: 100%;
    margin-inline: 0;
  }

  .category-water-system > .supply-method-section {
    width: calc(100% + var(--gutter));
    margin-right: calc(-1 * var(--gutter));
    margin-left: 0;
    padding-right: calc(var(--space-5) + var(--gutter));
  }

  .category-water-system > .category-conclusion {
    width: calc(100% + 2 * var(--gutter));
    margin-right: calc(-1 * var(--gutter));
    margin-left: calc(-1 * var(--gutter));
    padding-right: calc(var(--space-5) + var(--gutter));
    padding-left: calc(var(--space-5) + var(--gutter));
  }

  /* Three tiers: name band / purpose-capacity / disclosure-external route. */
  #products .product-table tbody {
    gap: 24px;
  }

  #products .product-table tr,
  #products .product-table__row.is-group-start:not(:first-child),
  #products .product-table tr:first-child {
    padding: 0;
    border: 0;
  }

  #products .product-table:not(.water-comparison) td:first-child {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-rows: auto auto auto;
    gap: 8px var(--space-3);
  }

  #products .product-table:not(.water-comparison) .product-table__name {
    grid-row: 1;
    margin: 0;
    padding: 8px;
    border: 0;
    background: var(--surface-active);
  }

  #products .product-table:not(.water-comparison) .product-table__mobile-compare {
    grid-column: 1 / -1;
    grid-row: 2;
    display: grid;
    gap: 8px;
    margin: 0;
  }

  #products .product-table:not(.water-comparison) .product-table__mobile-purpose,
  #products .product-table:not(.water-comparison) .product-table__mobile-quantity {
    grid-column: 1 / -1;
    grid-row: auto;
    min-height: 0;
    padding: 0;
    border: 0;
  }

  #products .product-table:not(.water-comparison) .product-table__meta {
    grid-column: 2;
    grid-row: 3;
    display: block;
    align-self: baseline;
    padding: 0;
  }

  #products .product-table:not(.water-comparison) .product-table__maker {
    display: none;
  }

  #products .product-table:not(.water-comparison) .product-table__action {
    margin: 0;
  }

  #products .product-table:not(.water-comparison) .product-table__details {
    grid-column: 1;
    grid-row: 3;
    align-self: baseline;
    margin: 0;
    padding: 0;
  }

  :root[data-theme="dark"] .page-chapter {
    border-bottom: 2px solid var(--color-rule);
  }
}

.comparison-axis-section h2 + .comparison-axis,
.supply-method-section h2 + .supply-method-axis {
  margin-top: var(--space-3);
}

.water-comparison > .product-purpose-group + .product-purpose-group::before {
  content: "";
  display: table-row;
  height: var(--space-6);
}

.product-purpose-group__row > th {
  padding: var(--space-5) 0 var(--space-2);
  border-bottom: 1px solid var(--color-rule);
  text-align: left;
}

.water-comparison > .product-purpose-group:first-of-type .product-purpose-group__row > th {
  padding-top: var(--space-3);
}

.product-purpose-group__heading { margin: 0; }
.water-comparison__capacity-sightline { display: block; }
.water-comparison__row-scale-labels { display: none; }

@media (max-width: 767px) {
  .product-table__name,
  .water-comparison .product-table__name {
    display: block;
    width: 100%;
    margin: 0;
    padding: 0 0 var(--space-3);
    border-bottom: 1px solid var(--color-rule);
    font-size: 17px;
    font-weight: 700;
    line-height: 1.55;
  }

  .product-table__mobile-compare {
    display: grid;
    gap: 0;
    width: 100%;
    margin-top: var(--space-2);
  }

  .product-table__mobile-compare > div {
    display: block;
    width: 100%;
    min-height: 0;
    padding-block: var(--space-2);
  }

  .product-table__mobile-value {
    margin: 0;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.65;
  }

  .product-table:not(.water-comparison) td:first-child {
    display: flex;
    flex-direction: column;
  }

  .product-table:not(.water-comparison) .product-table__name { order: 1; }
  .product-table:not(.water-comparison) .product-table__mobile-compare { order: 2; }
  .product-table:not(.water-comparison) .product-table__meta { order: 3; }
  .product-table:not(.water-comparison) .product-table__details { order: 4; }
  .product-table__mobile-purpose { border-bottom: 0; }

  .product-table__mobile-quantity {
    border-top: 1px solid var(--color-rule-soft);
    border-bottom: 1px solid var(--color-rule-soft);
  }

  #shortage .ledger-required__reading > strong { color: var(--color-ink); }

  #shortage .ledger-required__reading,
  #shortage .gap-bracket__result {
    display: grid;
    grid-template-columns: max-content max-content;
    align-items: baseline;
    column-gap: var(--space-2);
  }

  #shortage .ledger-required__reading > span:first-child { grid-column: 1 / -1; }
  #shortage .gap-bracket__result { color: var(--color-ink); }
  #shortage .gap-bracket__result strong { color: var(--role-link-danger); }

  .water-comparison thead { display: none; }

  .water-comparison > .product-purpose-group,
  .water-comparison > .product-purpose-group + .product-purpose-group {
    display: grid;
    gap: var(--space-5);
    margin-top: var(--space-6);
  }

  .water-comparison > .product-purpose-group:first-of-type { margin-top: 0; }
  .water-comparison > .product-purpose-group + .product-purpose-group::before { content: none; }

  .product-purpose-group__row,
  .water-comparison .product-purpose-group__row:first-child { display: block; }

  .product-purpose-group__row > th {
    display: block;
    width: 100%;
    padding: 0 0 var(--space-2);
  }

  .water-comparison__row,
  .water-comparison tr.water-comparison__row:first-child {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-rows: auto auto auto auto;
    gap: 0 var(--space-3);
    padding: 0 0 var(--space-3);
    border-bottom: 1px solid var(--color-rule);
  }

  .water-comparison__row > td,
  .water-comparison__row > td:first-child,
  .water-comparison__row > td:nth-child(2),
  .water-comparison__row > td:nth-child(3),
  .water-comparison__row > td:nth-child(4) {
    width: 100%;
    padding: var(--space-2) 0;
    border: 0;
  }

  .water-comparison__row > td:first-child {
    grid-column: 1 / -1;
    grid-row: 1;
    padding: 0;
  }

  .water-comparison__row > td:nth-child(2) {
    grid-column: 1;
    grid-row: 2;
    align-self: baseline;
    padding-block: var(--space-3);
  }

  .water-comparison__use {
    display: block;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.65;
  }

  .water-comparison__row > td.water-comparison__actions { display: contents; }

  .water-comparison__actions .product-table__details {
    grid-column: 2;
    grid-row: 2;
    align-self: baseline;
    margin: 0;
    padding-block: var(--space-3);
  }

  .water-comparison__actions .product-table__action {
    grid-column: 1 / -1;
    grid-row: 4;
    margin: 0;
    padding-top: var(--space-3);
  }

  .water-comparison__row > td.water-comparison__capacity {
    grid-column: 1 / -1;
    grid-row: 3;
    width: 100%;
    padding: var(--space-3) 0;
    border-top: 1px solid var(--color-rule-soft);
    text-align: left;
  }

  .water-comparison__capacity-sightline {
    display: flex;
    align-items: baseline;
    gap: var(--space-3);
    width: 100%;
  }

  .water-comparison__row-scale-labels {
    display: flex;
    flex: 1 1 auto;
    justify-content: space-between;
    min-width: 0;
    color: var(--color-ink-faint);
    font-family: var(--font-metadata);
    font-size: 14px;
    line-height: 1.4;
  }

  .water-comparison__capacity-value {
    flex: 0 0 auto;
    align-items: baseline;
    flex-direction: row;
    justify-content: flex-end;
    gap: var(--space-1);
    min-height: 0;
    color: var(--role-position);
  }

  .water-comparison__capacity-scale {
    width: 100%;
    margin-top: var(--space-2);
  }
}

/* Round 11 final mobile cascade lock. */
@media (max-width: 767px) {
  .water-comparison__row > td.water-comparison__capacity {
    min-height: 48px;
    padding-block: var(--space-3);
  }

  .water-comparison__capacity-sightline {
    min-height: 44px;
    align-items: center;
  }

  .water-comparison__row-scale-labels {
    font-size: 14px;
    line-height: 1.4;
  }

  .water-comparison__capacity-value strong {
    font-size: 1.25rem;
  }

  .water-comparison__capacity-scale {
    position: relative;
    height: 12px;
    margin-top: 0;
    border-bottom: 1px solid var(--color-rule);
  }

  .water-comparison__capacity-scale::after {
    position: absolute;
    bottom: -1px;
    left: var(--capacity-ratio);
    width: 2px;
    height: 12px;
    border: 0;
    background: var(--role-position);
    transform: translateX(-1px);
  }

  .water-comparison__capacity-scale::before {
    content: "";
    position: absolute;
    bottom: -4px;
    left: var(--capacity-ratio);
    z-index: 1;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--role-position);
    transform: translateX(-4px);
  }

  .water-comparison__row > td.water-comparison__actions {
    grid-column: 1 / -1;
    grid-row: 4;
  }

  .water-comparison__actions .product-table__action {
    grid-column: 1 / -1;
    display: flex;
    justify-content: flex-end;
    width: 100%;
    margin-top: 0;
    padding-top: 8px;
    border-top: 1px solid var(--color-rule-soft);
  }
}

/* Round 14 final cascade lock. */
.water-comparison__capacity-scale::before,
.water-comparison__capacity-scale::after {
  content: none;
}

@media (max-width: 767px) {
  #products .product-table tbody { gap: 24px; }

  #products .product-table tr,
  #products .product-table__row.is-group-start:not(:first-child),
  #products .product-table tr:first-child { padding: 0; border: 0; }

  #products .product-table:not(.water-comparison) .product-table__name {
    margin: 0;
    padding: 8px;
    border: 0;
  }

  #products .product-table:not(.water-comparison) .product-table__mobile-purpose,
  #products .product-table:not(.water-comparison) .product-table__mobile-quantity { padding: 0; border: 0; }

  #products .product-table:not(.water-comparison) .product-table__action,
  #products .product-table:not(.water-comparison) .product-table__details { margin: 0; padding: 0; }
}