:root { --font-geist-sans: system-ui, -apple-system, BlinkMacSystemFont; }
:root {
  --paper: #fafbf7;
  --ink: #202920;
  --muted: #526250;
  --line: #d8e0d1;
  --green: #295332;
  --wash: #edf1e6;
  --font-sans: var(--font-geist-sans), 'Noto Sans', sans-serif;
  color-scheme: light;
}
* {
  box-sizing: border-box;
}
html {
  font-family: var(--font-sans);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.65;
  scrollbar-color: var(--muted) var(--wash);
}
body {
  margin: 0;
}
::selection {
  background: #d9e7c8;
  color: var(--ink);
}
a {
  color: inherit;
  text-underline-offset: 0.2em;
}
a:hover {
  color: var(--green);
}
button,
input,
select {
  font: inherit;
}
button {
  background: var(--green);
  color: white;
  border: 1px solid var(--green);
  padding: 0.7rem 1.1rem;
  border-radius: 5px;
  cursor: pointer;
}
button:hover {
  background: #193b22;
}
button:disabled {
  opacity: 0.6;
  cursor: wait;
}
input,
select {
  min-width: 0;
  background: #fff;
  border: 1px solid #85927f;
  padding: 0.7rem;
  border-radius: 5px;
  color: var(--ink);
  caret-color: var(--green);
}
:focus-visible {
  outline: 3px solid #5b7c3c;
  outline-offset: 4px;
}
.wrap {
  width: min(1120px, calc(100% - 48px));
  margin-inline: auto;
}
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding-block: 28px;
  border-bottom: 1px solid var(--line);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  text-decoration: none;
}
.brand-mark {
  display: block;
  flex: none;
  width: 36px;
  height: 36px;
}
nav {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}
.site-header nav a {
  text-decoration: none;
  font-size: 0.94rem;
}
h1,
h2,
h3,
p {
  margin: 0;
}
h1 {
  font-size: clamp(2.2rem, 5vw, 4.2rem);
  line-height: 1.2;
  letter-spacing: -0.035em;
  font-weight: 600;
  text-wrap: balance;
  overflow-wrap: anywhere;
}
h2 {
  font-size: 1.45rem;
  line-height: 1.4;
  font-weight: 600;
}
h3 {
  font-size: 1.2rem;
  font-weight: 600;
}
.intro {
  padding: 76px 0 64px;
  max-width: 900px;
}
.intro > p,
.lead {
  font-size: 1.15rem;
  max-width: 66ch;
  color: var(--muted);
  margin-block: 24px;
}
.search-form {
  display: flex;
  gap: 10px;
  max-width: 720px;
  margin-block: 30px;
}
.search-form input {
  flex: 1;
}
.crop-section {
  border-top: 1px solid var(--line);
  padding-block: 32px;
}
.crop-nav {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 18px;
}
.crop-nav a {
  display: flex;
  justify-content: space-between;
  padding-block: 18px;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  font-size: 1.15rem;
}
.guides-section {
  padding-block: 32px 64px;
}
.section-heading {
  display: flex;
  gap: 20px;
  justify-content: space-between;
  align-items: baseline;
}
.empty {
  margin-top: 24px;
  padding: 32px;
  background: var(--wash);
  border-radius: 8px;
}
.empty p {
  margin-top: 8px;
  color: var(--muted);
}
.article-list article {
  padding-block: 28px;
  border-bottom: 1px solid var(--line);
}
.article-meta {
  font-size: 0.9rem;
  color: var(--muted);
  margin-block: 12px;
}
.article-list h3 {
  margin-block: 8px;
}
.article-list article > p:last-child {
  max-width: 70ch;
}
.page-section {
  padding-block: 52px 80px;
  min-height: 55vh;
}
.guide {
  max-width: 760px;
  margin-inline: auto;
  padding-block: 44px 72px;
}
.guide > h1 {
  margin-top: 24px;
  font-size: clamp(2rem, 4vw, 3.3rem);
}
.language-nav {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-block: 22px;
  font-size: 0.9rem;
}
.scope {
  margin-block: 32px;
  padding: 24px;
  background: var(--wash);
  border-radius: 8px;
}
.scope p {
  margin-top: 12px;
}
.prose {
  max-width: 72ch;
  overflow-wrap: anywhere;
}
.prose p {
  margin-block: 1.1em;
}
.prose h2,
.prose h3 {
  margin-top: 1.7em;
  margin-bottom: 0.7em;
}
.prose li {
  margin-block: 0.4em;
}
.sources {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  overflow-wrap: anywhere;
}
.article-images {
  display: grid;
  gap: 32px;
  margin-block: 32px;
}
.article-image {
  margin: 0;
  min-width: 0;
}
.article-image img {
  display: block;
  max-width: 100%;
  height: auto;
  margin-inline: auto;
  border-radius: 6px;
}
.article-image figcaption {
  margin-top: 12px;
  overflow-wrap: anywhere;
}
.article-image figcaption p {
  margin-top: 8px;
}
.image-kind {
  display: inline-block;
  padding: 2px 10px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--wash);
  font-size: 0.85rem;
}
.image-credit {
  color: var(--muted);
  font-size: 0.9rem;
}
.image-review dd {
  margin-inline-start: 0;
  margin-block-end: 12px;
  white-space: pre-wrap;
}
.calculator {
  max-width: 720px;
  margin-top: 36px;
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  margin-bottom: 24px;
}
.form-grid label {
  display: grid;
  gap: 8px;
}
.volume-result {
  margin-top: 24px;
  font-size: 1.3rem;
  font-variant-numeric: tabular-nums;
}
footer {
  padding-block: 32px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}
footer > p {
  margin-bottom: 12px;
}
.sr-only,
.skip:not(:focus) {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
}
.skip:focus {
  position: fixed;
  top: 8px;
  inset-inline-start: 8px;
  padding: 12px;
  background: white;
  z-index: 10;
}
.ops-item {
  padding-block: 24px;
  border-bottom: 1px solid var(--line);
}
.ops-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-block: 16px;
}
.ops-preview {
  margin-top: 16px;
  padding: 20px;
  background: white;
  border: 1px solid var(--line);
}
.error {
  color: #9c2f22;
}
.evidence-preview {
  margin-block: 20px;
  border-top: 1px solid var(--line);
  overflow-wrap: anywhere;
}
.evidence-preview details {
  margin-block: 12px;
}
.evidence-preview blockquote {
  margin-inline: 0;
  padding-inline: 16px;
  border-inline-start: 3px solid var(--line);
  white-space: pre-wrap;
}
.success {
  color: var(--green);
}
[dir='rtl'] .crop-nav a span {
  transform: scaleX(-1);
}
@media (max-width: 700px) {
  .wrap {
    width: calc(100% - 32px);
  }
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
    padding-block: 20px;
  }
  nav {
    gap: 16px;
  }
  .intro {
    padding-block: 42px;
  }
  .search-form {
    flex-direction: column;
  }
  .crop-nav {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .section-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
  .empty {
    padding: 24px;
  }
  .guide {
    padding-top: 28px;
  }
}

.ops-filter {
  display: flex;
  align-items: end;
  flex-wrap: wrap;
  gap: 16px;
  margin-block: 24px;
}
.ops-filter label {
  display: grid;
  gap: 8px;
}
.review-status,
.moderation-note {
  margin-block: 16px;
}
.review-comparison {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 32px;
}
.ops-preview section {
  min-width: 0;
  overflow-wrap: anywhere;
}
.ops-preview h4 {
  margin-bottom: 8px;
}
.comparison-label {
  margin-block: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}
.review-confirm {
  display: flex;
  gap: 12px;
  align-items: start;
  margin-block: 24px 8px;
}
.review-confirm input {
  margin-top: 6px;
  min-width: 20px;
  height: 20px;
}
.revision-info {
  margin-block: 20px;
  font-size: 0.85rem;
  overflow-wrap: anywhere;
}
.current-source,
.moderation-controls {
  margin-block: 24px;
}
summary {
  cursor: pointer;
  padding-block: 8px;
}
.moderation-controls p {
  margin-block: 12px;
}
.moderation-controls textarea {
  display: block;
  width: min(100%, 640px);
  box-sizing: border-box;
  padding: 12px;
  font: inherit;
  border: 1px solid var(--muted);
  border-radius: 5px;
  background: white;
  color: var(--ink);
}
@media (max-width: 760px) {
  .review-comparison {
    grid-template-columns: minmax(0, 1fr);
  }
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-block: 2rem;
}
.pagination a {
  padding: 0.65rem 1rem;
  border: 1px solid currentColor;
  border-radius: 0.3rem;
}
.pagination p {
  margin: 0;
}

.site-information-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.site-information {
  overflow-wrap: anywhere;
}
.site-information dt {
  font-weight: 600;
  margin-block-start: 20px;
}
.site-information dd {
  margin-inline-start: 0;
  margin-block-start: 8px;
}

.analytics-consent {
  padding-block: 0 32px;
}
.analytics-settings,
.analytics-close {
  color: var(--green);
  background: transparent;
}
.analytics-settings:hover,
.analytics-close:hover {
  background: var(--wash);
}
.analytics-panel {
  max-width: 760px;
  margin-block-start: 20px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  overflow-wrap: anywhere;
}
.analytics-panel p {
  margin-block-start: 16px;
}
.analytics-status {
  color: var(--muted);
}
.analytics-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-block-start: 24px;
}
.analytics-actions button {
  flex: 1 1 auto;
}
@media (max-width: 700px) {
  .analytics-panel {
    padding: 20px;
  }
  .analytics-actions {
    flex-direction: column;
  }
}
/* Ads (E2, docs/ADS.md): a labelled box of the ad's fixed size, in the page's flow (never fixed,
   sticky or over content), set apart from buttons and links, and not styled like either. */
.ad-anchor {
  display: block;
  position: static;
}
.ad-slot {
  position: static;
  margin-block: 56px;
  padding-block: 12px 16px;
  border-block: 1px solid var(--line);
  text-align: center;
  max-width: 100%;
  overflow: hidden;
  cursor: default;
}
.ad-label {
  margin: 0 0 8px;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}
.ad-frame {
  display: block;
  max-width: 100%;
  margin-inline: auto;
  background: #f1f3ec;
  overflow: hidden;
}
.ad-placeholder {
  margin: 0;
  padding: 16px;
  color: var(--muted);
  font-size: 0.85rem;
}
.ad-settings,
.test-cmp {
  padding-block: 0 32px;
}
.ad-settings h2,
.test-cmp h2 {
  font-size: 1rem;
  margin-block: 0 8px;
}
.ad-settings p,
.test-cmp p {
  max-width: 72ch;
  margin-block: 8px;
}
.ad-status {
  color: var(--muted);
}
.ad-settings-open {
  color: var(--green);
  background: transparent;
}
.ad-settings-open:hover {
  background: var(--wash);
}
.test-cmp {
  max-width: 760px;
  padding: 24px;
  border: 1px dashed var(--muted);
  border-radius: 8px;
  background: white;
}
.test-cmp-notice {
  color: var(--muted);
}
.measurement-table {
  width: 100%;
  margin-block: 16px 24px;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}
.measurement-table caption {
  margin-bottom: 12px;
  color: var(--muted);
  text-align: start;
}
.measurement-table th,
.measurement-table td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--line);
  text-align: start;
  vertical-align: top;
  overflow-wrap: anywhere;
}
.measurement-table thead th {
  border-bottom-width: 2px;
}
.measurement-empty {
  margin-block: 24px;
  padding: 20px;
  background: white;
  border: 1px solid var(--line);
}
.research-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-block: 16px;
}
.research-nav a[aria-current='page'] {
  font-weight: 600;
  text-decoration: none;
}
.research-note {
  padding: 12px 16px;
  background: white;
  border: 1px solid var(--line);
}
.research-panel {
  margin-block: 24px;
  padding: 20px;
  background: white;
  border: 1px solid var(--line);
}
.research-form {
  display: grid;
  gap: 12px;
  margin-block: 16px;
}
.research-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px 16px;
}
.research-field {
  display: grid;
  gap: 6px;
  min-width: 0;
}
.research-field input,
.research-field select,
.research-field textarea {
  max-width: 100%;
}
.research-members {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 6px 16px;
  max-height: 320px;
  overflow-y: auto;
}
.research-factor {
  display: grid;
  grid-template-columns: minmax(80px, 120px) minmax(0, 1fr) minmax(0, 1fr);
  gap: 12px;
}
.research-scroll {
  max-width: 100%;
  overflow-x: auto;
}
.research-conditions {
  margin: 0;
  padding-inline-start: 18px;
  overflow-wrap: anywhere;
}
.research-items {
  overflow-wrap: anywhere;
}
.research-live:empty {
  margin: 0;
}
.research-summary dt {
  font-weight: 600;
}
.research-summary dd {
  margin-inline-start: 0;
  margin-bottom: 8px;
}
@media (max-width: 700px) {
  .research-factor {
    grid-template-columns: 1fr;
  }
}

.prose .table-scroll {
  max-width: 100%;
  overflow-x: auto;
  margin-block: 16px;
}
.prose table {
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}
.prose th,
.prose td {
  padding: 6px 10px;
  border: 1px solid var(--line);
  text-align: start;
  vertical-align: top;
  /* The article's overflow-wrap: anywhere would let a cell shrink to one character, squeezing a
     wide table into columns of single letters; a cell keeps its words and a minimum width, and a
     table wider than the page scrolls in its own region instead. */
  overflow-wrap: break-word;
  min-width: 5em;
}

/* The numbers backstop: a section at a time, each block's box easy to hit (≥ 24 px) and the
   whole line clickable. */
.numeric-section > summary {
  cursor: pointer;
  font-weight: 600;
  padding: 0.25rem 0;
}
.numeric-confirm {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  min-height: 2.75rem;
  padding: 0.25rem 0.5rem;
  border-radius: 0.375rem;
  cursor: pointer;
}
.numeric-confirm:hover {
  background: color-mix(in srgb, currentColor 6%, transparent);
}
.numeric-confirm input {
  flex: none;
  width: 1.5rem;
  height: 1.5rem;
  margin: 0;
  cursor: pointer;
}
.numeric-confirm input:focus-visible {
  outline: 3px solid Highlight;
  outline-offset: 2px;
}
.numeric-confirm-section {
  min-height: 2.75rem;
  margin: 0.25rem 0 0.75rem;
}

/* A translation's numbers beside its Chinese source's: two columns, one on a phone. */
.numeric-pair {
  display: grid;
  /* Side by side from about two 11rem columns (the review column at 1280px and wider). */
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 11rem), 1fr));
  gap: 0.75rem;
}
.numeric-pair > p {
  margin: 0;
  padding: 0.5rem;
  border: 1px solid color-mix(in srgb, currentColor 15%, transparent);
  border-radius: 0.375rem;
}

/* D5 main-source updates: the change an approver records, and the retranslation comparison. */
.source-change {
  display: grid;
  gap: 8px;
  margin-block: 24px 8px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 5px;
}
.source-change select,
.source-change textarea,
.update-form textarea,
.update-form input[type='text'] {
  box-sizing: border-box;
  width: min(100%, 640px);
  padding: 8px;
  font: inherit;
  border: 1px solid var(--muted);
  border-radius: 5px;
  background: white;
  color: var(--ink);
}
.update-group {
  margin-block: 32px;
  padding-block: 16px;
  border-top: 1px solid var(--line);
}
.update-form {
  display: grid;
  gap: 8px;
  margin-block: 12px;
}
.update-form .choices {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
}
.update-diff td {
  vertical-align: top;
  overflow-wrap: anywhere;
  min-width: 12ch;
}
.update-diff tr[data-replaced='true'] th {
  color: var(--danger, #9b1c1c);
}
.update-diff ins {
  background: #dff3e4;
  text-decoration: none;
}
.update-diff del {
  background: #fbe3e3;
}
/* E4 operations overview */
.overview-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr));
  gap: 20px;
  margin-block: 24px;
}
.overview-card {
  min-width: 0;
  padding: 20px;
  background: white;
  border: 1px solid var(--line);
}
.overview-card h2 {
  margin-top: 0;
}
.overview-meta {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  gap: 4px 12px;
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 0.9em;
}
.overview-meta dt {
  font-weight: 600;
}
.overview-meta dd {
  margin: 0;
  overflow-wrap: anywhere;
}
.overview-alerts {
  margin-block: 16px;
  padding: 12px 16px;
  background: white;
  border: 1px solid var(--line);
}