/* The index borrows the experience shell, then gives evidence its own quiet rhythm. */
.ai-index-page {
  --index-soft: #f4f7fd;
  --index-muted: #536689;
  --index-rule: rgba(0, 47, 167, .22);
  min-width: 0;
  overflow-x: clip;
  background: #fff;
  color: var(--blue);
}

.ai-index-page main {
  padding: 0;
}

.ai-index-page :is(p, li, dd) {
  max-width: 68ch;
}

.index-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  max-width: 1540px;
  margin: 0 auto;
  padding: 50px var(--gutter) 84px;
  gap: 54px;
}

.index-hero-copy {
  min-width: 0;
}

.index-kicker,
.section-label,
.index-note-label,
.index-note-meta,
.entry-number,
.category-number,
.entry-jobs span,
.source-receipt > p:first-child,
.index-result {
  font-size: 13px;
  line-height: 1.35;
  letter-spacing: .025em;
}

.index-kicker,
.section-label {
  margin-bottom: 28px;
}

.index-hero h1 {
  max-width: 8ch;
  margin: 0;
  font-size: clamp(68px, 16vw, 190px);
  line-height: .91;
  letter-spacing: -.075em;
}

.index-dek {
  max-width: 34ch;
  margin-top: 38px;
  font-size: clamp(23px, 3.2vw, 42px);
  line-height: 1.2;
  letter-spacing: -.035em;
}

.index-hero-foot {
  display: grid;
  gap: 28px;
  margin-top: 52px;
}

.index-hero-foot > p {
  max-width: 38ch;
  font-size: 18px;
  line-height: 1.5;
}

.index-hero-foot > p a {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.index-link {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: fit-content;
  min-height: 48px;
  padding: 8px 0;
  border-bottom: 1px solid currentColor;
  font-size: 18px;
  font-weight: 500;
}

.index-link span {
  font-size: 20px;
  line-height: 1;
}

.index-hero-note {
  align-self: end;
  max-width: 430px;
  padding: 24px 0 0;
  border-top: 1px solid var(--index-rule);
}

.index-mark {
  display: block;
  width: 112px;
  height: auto;
  margin-bottom: 32px;
}

.index-note-label {
  margin-bottom: 14px;
}

.index-note-value {
  max-width: 12ch;
  font: 500 clamp(29px, 4.2vw, 52px)/1.04 'Kumbh Sans', sans-serif;
  letter-spacing: -.055em;
}

.index-note-meta {
  margin-top: 34px;
  color: var(--index-muted);
}

.index-overview,
.index-stats,
.index-catalogue,
.index-methodology {
  max-width: 1540px;
  margin-inline: auto;
  padding: 76px var(--gutter);
}

.index-overview {
  display: grid;
  gap: 36px;
  border-top: 1px solid var(--index-rule);
}

.overview-heading h2,
.stats-heading h2,
.catalogue-heading h2,
.methodology-heading h2 {
  max-width: 14ch;
  font-size: clamp(40px, 5.5vw, 76px);
  line-height: 1;
  letter-spacing: -.065em;
}

.overview-copy {
  max-width: 53ch;
}

.overview-copy p {
  font-size: 21px;
  line-height: 1.48;
}

.overview-copy p + p {
  margin-top: 22px;
}

.overview-copy .index-link {
  margin-top: 30px;
}

.index-stats {
  display: grid;
  gap: 50px;
  border-top: 1px solid var(--index-rule);
}

.readiness-chart {
  display: grid;
  gap: 22px;
}

.readiness-chart svg {
  display: block;
  width: 100%;
  height: 72px;
  border: 1px solid var(--index-rule);
}

.readiness-segment-1,
.readiness-key-1 {
  fill: var(--blue);
  background: var(--blue);
}

.readiness-segment-2,
.readiness-key-2 {
  fill: #5877c8;
  background: #5877c8;
}

.readiness-segment-3,
.readiness-key-3 {
  fill: #b8c7ec;
  background: #b8c7ec;
}

.readiness-chart ul {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px 24px;
  list-style: none;
  padding: 0;
}

.readiness-chart li {
  display: grid;
  grid-template-columns: 12px minmax(0, 1fr) auto auto;
  gap: 9px;
  align-items: baseline;
  padding-top: 10px;
  border-top: 1px solid var(--index-rule);
  color: var(--index-muted);
  font-size: 14px;
}

.readiness-chart li strong {
  color: var(--blue);
  font-weight: 500;
}

.readiness-key {
  width: 10px;
  height: 10px;
}

.stats-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 22px;
}

.index-stat {
  display: grid;
  gap: 11px;
  padding: 24px 0 22px;
  border-top: 1px solid var(--index-rule);
}

.index-stat span:first-child {
  font: 500 clamp(45px, 8vw, 90px)/.95 'Kumbh Sans', sans-serif;
  letter-spacing: -.06em;
  font-variant-numeric: tabular-nums;
}

.index-stat span:last-child {
  font-size: 17px;
  color: var(--index-muted);
}

.index-catalogue {
  border-top: 1px solid var(--index-rule);
}

.catalogue-heading {
  display: grid;
  gap: 26px;
}

.catalogue-heading > p {
  max-width: 38ch;
  font-size: 19px;
  line-height: 1.48;
}

.index-tools {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 54px;
  padding: 24px 0 20px;
  border-top: 1px solid var(--index-rule);
  border-bottom: 1px solid var(--index-rule);
}

.index-search-label {
  font-size: 17px;
  font-weight: 500;
}

.index-search {
  width: 100%;
  max-width: 560px;
  min-height: 56px;
  padding: 13px 16px;
  border: 1px solid #9fb3e5;
  border-radius: 0;
  background: #fff;
  color: var(--blue);
  font-size: 18px;
}

.index-search::placeholder {
  color: var(--index-muted);
  opacity: 1;
}

.index-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.index-filters button {
  min-height: 44px;
  padding: 9px 15px;
  border: 1px solid var(--index-rule);
  border-radius: 999px;
  font-size: 16px;
}

.index-filters button[aria-pressed=true] {
  border-color: var(--blue);
  background: var(--blue);
  color: #fff;
}

.index-result {
  color: var(--index-muted);
}

.index-category-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0 23px;
  padding: 28px 0 16px;
}

.index-category-nav a {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  min-height: 44px;
  padding: 8px 0;
  border-bottom: 1px solid transparent;
  font-size: 16px;
}

.index-category-nav a span {
  color: var(--index-muted);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}

.index-category-nav a:hover,
.index-category-nav a:focus-visible {
  border-bottom-color: currentColor;
}

.index-no-script {
  max-width: 62ch;
  margin: 12px 0 35px;
  padding: 14px 16px;
  background: var(--index-soft);
  font-size: 16px;
}

.index-category {
  scroll-margin-top: 120px;
  padding-top: 65px;
}

.category-header {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px 22px;
  align-items: start;
  padding-bottom: 26px;
  border-bottom: 2px solid var(--blue);
}

.category-number {
  padding-top: 12px;
}

.category-header h2 {
  font-size: clamp(35px, 6vw, 76px);
  line-height: 1;
  letter-spacing: -.06em;
}

.category-header p:not(.category-number) {
  margin-top: 11px;
  color: var(--index-muted);
  font-size: 17px;
}

.category-return {
  grid-column: 2;
  justify-self: start;
  min-height: 44px;
  padding: 9px 0;
  text-decoration: underline;
  text-underline-offset: 5px;
  font-size: 15px;
}

.index-table-wrap {
  width: 100%;
}

.index-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  font-size: 14px;
}

.index-table caption {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.col-tool { width: 28%; }
.col-grade { width: 7%; }
.col-readiness { width: 10%; }
.col-route { width: 17%; }
.col-coverage { width: 11%; }
.col-setup { width: 10%; }
.col-evidence { width: 17%; }

.index-table thead th {
  padding: 13px 10px;
  border-bottom: 2px solid var(--blue);
  color: var(--index-muted);
  font-weight: 400;
  text-align: left;
}

.index-record[hidden] {
  display: none;
}

.index-entry > :is(th, td) {
  padding: 19px 10px 16px;
  border-top: 1px solid var(--index-rule);
  vertical-align: top;
  text-align: left;
  overflow-wrap: anywhere;
}

.index-entry > th {
  font-weight: 400;
}

.entry-number {
  display: inline-block;
  width: 27px;
  color: var(--index-muted);
  font-variant-numeric: tabular-nums;
}

.tool-name {
  color: var(--blue);
  font: 500 19px/1.15 'Kumbh Sans', sans-serif;
  letter-spacing: -.025em;
}

.tool-category,
.tool-summary {
  display: block;
  margin-left: 27px;
  color: var(--index-muted);
}

.tool-category {
  margin-top: 5px;
  font-size: 12px;
  letter-spacing: .02em;
}

.tool-summary {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.42;
}

.grade-mark {
  font: 500 26px/1 'Kumbh Sans', sans-serif;
  letter-spacing: -.04em;
  font-variant-numeric: tabular-nums;
}

.readiness-mark {
  display: inline-block;
  padding-bottom: 3px;
  border-bottom: 2px solid var(--blue);
  font-weight: 500;
}

.entry-detail-row > td {
  padding: 0 10px 14px;
  border-bottom: 1px solid var(--index-rule);
}

.entry-detail {
  margin-left: 27px;
}

.entry-detail summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: fit-content;
  min-height: 44px;
  padding: 8px 0;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  list-style: none;
}

.entry-detail summary::-webkit-details-marker {
  display: none;
}

.entry-detail summary::after {
  content: '+';
  font: 300 28px/1 'Hanken Grotesk', sans-serif;
}

.entry-detail[open] summary::after {
  content: '−';
}

.entry-detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px 30px;
  padding: 24px 0 12px;
}

.entry-detail-grid section {
  min-width: 0;
}

.entry-detail-grid h4 {
  margin-bottom: 12px;
  font: 500 23px/1.15 'Kumbh Sans', sans-serif;
  letter-spacing: -.035em;
}

.entry-detail-grid p,
.entry-list {
  color: var(--index-muted);
  font-size: 16px;
  line-height: 1.48;
}

.entry-meta {
  margin-top: 15px;
}

.entry-meta span {
  color: var(--blue);
  font-weight: 500;
}

.entry-list {
  display: grid;
  gap: 9px;
  padding-left: 18px;
}

.limits-heading {
  margin-top: 26px!important;
}

.entry-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 18px;
  margin-bottom: 19px;
}

.entry-actions > div {
  padding: 9px 0;
  border-top: 1px solid var(--index-rule);
}

.entry-actions dt {
  color: var(--index-muted);
  font-size: 14px;
}

.entry-actions dd {
  margin-top: 3px;
  font-size: 16px;
}

.entry-source {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 8px 0;
  border-bottom: 1px solid currentColor;
  font-size: 16px;
}

.index-methodology {
  display: grid;
  gap: 36px;
  border-top: 1px solid var(--index-rule);
}

.methodology-copy {
  max-width: 68ch;
}

.methodology-copy > p {
  font-size: 20px;
  line-height: 1.5;
}

.readiness-definitions {
  display: grid;
  gap: 0;
  margin-top: 37px;
}

.readiness-definitions > div {
  display: grid;
  grid-template-columns: minmax(100px, .4fr) minmax(0, 1fr);
  gap: 20px;
  padding: 16px 0;
  border-top: 1px solid var(--index-rule);
}

.readiness-definitions dt {
  font-size: 17px;
  font-weight: 500;
}

.readiness-definitions dd {
  color: var(--index-muted);
  font-size: 17px;
}

.source-receipt {
  display: grid;
  gap: 10px;
  max-width: 76ch;
  margin-top: 46px;
  padding-top: 20px;
  border-top: 1px solid var(--index-rule);
  color: var(--index-muted);
  font-size: 15px;
  line-height: 1.5;
}

.source-receipt a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.source-receipt code {
  font: inherit;
}

.index-footer {
  display: grid;
  gap: 40px;
  max-width: 1540px;
  margin: 0 auto;
  padding: 46px var(--gutter) 54px;
  border-top: 2px solid var(--blue);
}

.index-footer-brand .brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font: 23px/1.06 'Kumbh Sans', sans-serif;
  letter-spacing: -.05em;
}

.index-footer-brand .eyes-art {
  width: 66px;
}

.index-footer-brand > p {
  margin-top: 18px;
  color: var(--index-muted);
  font-size: 16px;
}

.index-footer-actions {
  display: grid;
  gap: 22px;
  justify-items: start;
}

.index-footer .footer-contact {
  display: inline-flex;
  align-items: center;
  min-height: 58px;
  padding: 15px 24px;
  border-radius: 999px;
  background: var(--blue);
  color: #fff;
  font: 500 18px/1.2 'Hanken Grotesk', sans-serif;
}

.index-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 7px 24px;
  font-size: 16px;
}

.index-footer nav a,
.index-footer nav button,
.index-footer-actions > a:last-child {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 7px 0;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 5px;
}

.index-footer nav button {
  color: inherit;
  font-size: inherit;
}

.index-footer-actions > a:last-child {
  overflow-wrap: anywhere;
  font-size: 16px;
}

@media (max-width: 759px) {
  .readiness-chart ul {
    grid-template-columns: minmax(0, 1fr);
  }

  .index-table,
  .index-table tbody,
  .index-table tr,
  .index-table th,
  .index-table td {
    display: block;
    width: 100%;
  }

  .index-table colgroup,
  .index-table thead {
    display: none;
  }

  .index-table tr.index-entry {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 20px;
    padding-top: 14px;
    border-top: 1px solid var(--index-rule);
  }

  .index-entry > :is(th, td) {
    min-width: 0;
    padding: 11px 0;
    border-top: 0;
  }

  .index-entry > th {
    grid-column: 1 / -1;
    padding: 12px 0 17px;
  }

  .index-entry > td::before {
    content: attr(data-label);
    display: block;
    margin-bottom: 5px;
    color: var(--index-muted);
    font-size: 12px;
  }

  .tool-name {
    font-size: 24px;
  }

  .tool-summary {
    max-width: 54ch;
    font-size: 15px;
  }

  .entry-detail-row > td {
    padding: 4px 0 18px;
  }

  .entry-detail {
    margin-left: 27px;
  }
}

@media (min-width: 760px) {
  .index-hero {
    grid-template-columns: minmax(0, 1.4fr) minmax(260px, .6fr);
    align-items: end;
    gap: 8%;
    padding-top: 94px;
    padding-bottom: 125px;
  }

  .index-hero-foot,
  .index-overview,
  .index-stats,
  .index-methodology {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 8%;
  }

  .index-hero-foot {
    align-items: end;
  }

  .index-hero-note {
    padding-top: 32px;
  }

  .index-overview,
  .index-stats,
  .index-catalogue,
  .index-methodology {
    padding-top: 112px;
    padding-bottom: 112px;
  }

  .index-overview .overview-heading,
  .index-stats .stats-heading,
  .index-methodology .methodology-heading {
    align-self: start;
  }

  .index-overview .overview-copy,
  .index-methodology .methodology-copy {
    padding-top: 46px;
  }

  .stats-list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0 24px;
  }

  .catalogue-heading {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .65fr);
    align-items: end;
    gap: 8%;
  }

  .index-tools {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .index-search-label {
    grid-column: 1;
  }

  .index-search {
    grid-column: 1;
  }

  .index-filters {
    grid-column: 2;
    grid-row: 1 / span 2;
    justify-content: flex-end;
  }

  .index-result {
    grid-column: 1 / -1;
  }

  .category-header {
    grid-template-columns: 55px minmax(0, 1fr) auto;
    align-items: baseline;
  }

  .category-number {
    padding-top: 0;
  }

  .category-return {
    grid-column: 3;
    grid-row: 1;
    justify-self: end;
  }

  .entry-detail-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 25px;
  }

  .index-footer {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: end;
    gap: 8%;
  }

  .index-footer-actions {
    justify-items: end;
  }

  .index-footer nav {
    justify-content: flex-end;
  }
}

@media (max-width: 359px) {
  .index-hero h1 {
    font-size: 63px;
  }

  .entry-detail {
    margin-left: 0;
  }

  .entry-actions,
  .entry-detail-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .index-link,
  .index-footer .footer-contact {
    transition: none!important;
  }
}

@media print {
  .site-header,
  .index-tools,
  .index-category-nav,
  .category-return,
  .index-footer-actions,
  .skip {
    display: none!important;
  }

  .ai-index-page {
    padding-top: 0!important;
  }

  .index-hero,
  .index-overview,
  .index-stats,
  .index-catalogue,
  .index-methodology {
    padding-block: 30px;
  }

  .entry-detail {
    border-top: 0;
  }

  .entry-detail summary {
    display: none;
  }

  .entry-detail-grid {
    display: grid;
  }
}