:root {
  color-scheme: light;
  --font-display: "Segoe UI", "Microsoft YaHei", sans-serif;
  --font-body: "Segoe UI", "Microsoft YaHei", sans-serif;
  --font-data: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
  --ink-950: #0f172a;
  --ink-800: #1e293b;
  --ink-650: #475569;
  --ink-500: #64748b;
  --line-strong: #cbd5e1;
  --line: #e2e8f0;
  --line-soft: #f1f5f9;
  --paper: #ffffff;
  --surface: #f8fafc;
  --surface-strong: #f1f5f9;
  --blue-700: #1d4ed8;
  --blue-600: #2563eb;
  --blue-100: #dbeafe;
  --success-700: #047857;
  --success-100: #ecfdf5;
  --amber-700: #a16207;
  --amber-100: #fef9c3;
  --violet-700: #6d28d9;
  --violet-100: #ede9fe;
  --radius-xs: 6px;
  --radius-sm: 12px;
  --radius-md: 16px;
  --shadow-float: 0 16px 40px rgba(15, 23, 42, 0.08);
  --content-max: 1280px;
  --text-max: 720px;
  --header-height: 80px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink-950);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
}

img,
svg {
  display: block;
  max-width: 100%;
}

button,
input,
select,
textarea {
  color: inherit;
  font: inherit;
  letter-spacing: 0;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: inherit;
}

[hidden] {
  display: none !important;
}

:focus-visible {
  outline: 3px solid rgba(37, 99, 235, 0.3);
  outline-offset: 2px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: -60px;
  z-index: 100;
  padding: 10px 14px;
  background: var(--ink-950);
  color: var(--paper);
  text-decoration: none;
}

.skip-link:focus {
  top: 12px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  min-height: var(--header-height);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
}

.site-header__inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  min-height: var(--header-height);
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 22px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink-950);
  text-decoration: none;
}

.brand img {
  width: 34px;
  height: 34px;
  object-fit: contain;
}

.brand__copy {
  display: grid;
  line-height: 1.1;
}

.brand__copy strong {
  font-size: 17px;
  font-weight: 760;
}

.brand__copy small {
  color: var(--ink-500);
  font-size: 10px;
}

.site-nav {
  display: flex;
  align-items: stretch;
  justify-content: center;
  height: var(--header-height);
}

.site-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 0 17px;
  color: var(--ink-650);
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--ink-950);
}

.site-nav a[aria-current="page"]::after {
  position: absolute;
  right: 17px;
  bottom: -1px;
  left: 17px;
  height: 3px;
  background: var(--blue-600);
  content: "";
}

.site-actions,
.button-group,
.hero-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.site-actions {
  justify-content: flex-end;
}

.site-menu-button {
  display: none !important;
}

.user-badge {
  max-width: 120px;
  overflow: hidden;
  color: var(--ink-650);
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.icon-button {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--paper);
  color: var(--ink-650);
  cursor: pointer;
  text-decoration: none;
}

.icon-button:hover {
  border-color: var(--line-strong);
  color: var(--blue-700);
}

.icon-button svg,
.button svg,
.text-link svg,
.scene-stack__resources svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
}

.button--primary {
  border-color: var(--ink-950);
  background: var(--ink-950);
  color: var(--paper);
}

.button--primary:hover {
  border-color: var(--blue-700);
  background: var(--blue-700);
}

.button--secondary {
  border-color: var(--line-strong);
  background: var(--paper);
  color: var(--ink-800);
}

.button--secondary:hover {
  border-color: var(--blue-600);
  color: var(--blue-700);
}

.button--compact {
  min-height: 36px;
  padding: 7px 12px;
  font-size: 13px;
}

.button--light {
  border-color: var(--paper);
  background: var(--paper);
  color: var(--ink-950);
}

.button--outline-light {
  border-color: rgba(255, 255, 255, 0.45);
  background: transparent;
  color: var(--paper);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  width: fit-content;
  color: var(--blue-700);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.text-link:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-shell {
  min-height: calc(100vh - var(--header-height));
}

.content-frame,
.section-inner,
.metric-toolbar__inner,
.site-footer__inner {
  width: min(calc(100% - 44px), var(--content-max));
  margin: 0 auto;
}

.section-label {
  margin: 0 0 12px;
  color: var(--blue-700);
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 750;
  line-height: 1.4;
  text-transform: uppercase;
}

.home-hero {
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.home-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(520px, 1.18fr);
  align-items: center;
  gap: 54px;
  min-height: 610px;
  padding: 64px 0;
}

.home-hero__copy h1,
.page-intro h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 780;
  letter-spacing: 0;
  overflow-wrap: normal;
  text-wrap: balance;
  word-break: normal;
}

.home-hero__copy h1 {
  max-width: 760px;
  font-size: 54px;
  line-height: 1.14;
}

.home-hero__copy > p:not(.section-label) {
  max-width: 650px;
  margin: 24px 0 0;
  color: var(--ink-650);
  font-size: 18px;
  line-height: 1.85;
}

.hero-actions {
  flex-wrap: wrap;
  margin-top: 30px;
}

.hero-actions .text-link {
  margin-left: 4px;
}

.asset-mosaic {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-rows: 210px 150px;
  gap: 10px;
}

.asset-mosaic a {
  position: relative;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  background: var(--paper);
  color: var(--paper);
  text-decoration: none;
}

.asset-mosaic__primary {
  grid-column: 1 / -1;
  grid-row: auto;
}

.asset-mosaic img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.asset-mosaic__primary img {
  object-position: center;
}

.asset-mosaic a::after {
  position: absolute;
  inset: auto 0 0;
  height: 68px;
  background: rgba(15, 23, 42, 0.88);
  content: "";
}

.asset-mosaic span {
  position: absolute;
  right: 14px;
  bottom: 12px;
  left: 14px;
  z-index: 1;
  display: grid;
  line-height: 1.35;
}

.asset-mosaic strong {
  font-size: 14px;
}

.asset-mosaic small {
  color: #e2e8f0;
  font-size: 11px;
}

.metric-toolbar {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.metric-toolbar__inner {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.metric-item {
  display: grid;
  gap: 2px;
  min-width: 0;
  padding: 22px 28px;
  border-right: 1px solid var(--line);
  text-decoration: none;
}

.metric-item:first-child {
  border-left: 1px solid var(--line);
}

.metric-item:hover {
  background: var(--surface);
}

.metric-item__value {
  font-family: var(--font-data);
  font-size: 24px;
  font-weight: 800;
  line-height: 1.2;
}

.metric-item__value small {
  margin-left: 4px;
  color: var(--blue-700);
  font-size: 11px;
}

.metric-item__label {
  color: var(--ink-650);
  font-size: 13px;
}

.metric-error {
  grid-column: 1 / -1;
  padding: 22px;
  color: var(--ink-500);
  text-align: center;
}

.page-intro {
  padding: 76px 0 58px;
}

.page-intro--simple {
  max-width: var(--content-max);
}

.page-intro h1 {
  max-width: 940px;
  font-size: 46px;
  line-height: 1.18;
}

.page-intro > p:not(.section-label) {
  max-width: var(--text-max);
  margin: 22px 0 0;
  color: var(--ink-650);
  font-size: 18px;
  line-height: 1.85;
}

.section-band {
  border-top: 1px solid var(--line);
  background: var(--paper);
}

.section-band--soft {
  background: var(--surface);
}

.section-band--dark {
  border-color: var(--ink-800);
  background: var(--ink-950);
  color: var(--paper);
}

.section-band--flush {
  border-top: 0;
}

.section-band--flush .section-inner {
  padding-top: 24px;
}

.section-inner {
  padding: 70px 0;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.64fr);
  align-items: end;
  gap: 48px;
  margin-bottom: 40px;
}

.section-heading--compact {
  margin-bottom: 30px;
}

.section-heading h2,
.section-inner > h2,
.training-callout h2,
.tool-feature h2,
.next-entry h2,
.editorial-grid h2,
.mission-layout h2,
.business-grid h2,
.practice-layout h2,
.contact-band h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 38px;
  font-weight: 760;
  line-height: 1.24;
  letter-spacing: 0;
}

.section-heading > p,
.training-callout p,
.tool-feature p,
.editorial-copy p,
.contact-band p {
  max-width: var(--text-max);
  margin: 0;
  color: var(--ink-650);
  font-size: 16px;
  line-height: 1.8;
}

.capability-lines {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line-strong);
}

.capability-lines article {
  min-width: 0;
  padding: 30px 42px 10px 0;
}

.capability-lines article + article {
  padding-left: 42px;
  border-left: 1px solid var(--line);
}

.capability-lines > article > span,
.learning-sequence article > span,
.course-row__stage span,
.tool-category {
  color: var(--blue-700);
  font-family: var(--font-data);
  font-size: 11px;
  font-weight: 750;
  text-transform: uppercase;
}

.capability-lines h3,
.learning-sequence h3,
.resource-card h3,
.tool-catalog h3,
.course-row h3,
.focus-row h3,
.principle-list h3,
.business-lines h3 {
  margin: 12px 0 8px;
  font-size: 22px;
  line-height: 1.35;
}

.capability-lines p,
.learning-sequence p,
.resource-card p,
.tool-catalog p,
.course-row p,
.focus-row p,
.principle-list p,
.business-lines p {
  margin: 0 0 18px;
  color: var(--ink-650);
}

.focus-list,
.research-list,
.scene-stack-list,
.course-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line-strong);
}

.focus-row,
.research-row {
  display: grid;
  grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1.28fr);
  gap: 36px;
  padding: 34px 0;
  border-bottom: 1px solid var(--line);
}

.focus-row__media,
.research-row__media {
  display: block;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--paper);
}

.focus-row__media img,
.research-row__media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.focus-row__media.is-contain img,
.research-row__media.is-contain img,
.resource-card__media.is-contain img,
.scene-stack__media.is-contain img,
.asset-mosaic a.is-contain img,
.evidence-strip a.is-contain img {
  object-fit: contain;
}

.focus-row--text,
.research-row--text {
  grid-template-columns: minmax(0, 1fr);
}

.focus-row__body,
.research-row__body {
  align-self: center;
}

.focus-row dl,
.research-row dl {
  display: grid;
  gap: 8px;
  margin: 18px 0 20px;
}

.focus-row dl div,
.research-row dl div {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 12px;
}

.focus-row dt,
.research-row dt,
.tool-spec strong,
.course-row dt,
.scope-layout dt {
  color: var(--ink-500);
  font-size: 12px;
  font-weight: 700;
}

.focus-row dd,
.research-row dd,
.course-row dd,
.scope-layout dd {
  margin: 0;
  color: var(--ink-800);
  font-size: 14px;
}

.resource-row__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  color: var(--ink-500);
  font-family: var(--font-data);
  font-size: 11px;
}

.status {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  min-height: 22px;
  padding: 2px 7px;
  border-radius: var(--radius-xs);
  background: var(--surface-strong);
  color: var(--ink-650);
  font-family: var(--font-data);
  font-size: 10px;
  font-weight: 750;
}

.status--stable {
  background: var(--success-100);
  color: var(--success-700);
}

.status--public_test {
  background: var(--blue-100);
  color: var(--blue-700);
}

.status--alpha,
.status--research {
  background: var(--amber-100);
  color: var(--amber-700);
}

.status--partner {
  background: var(--violet-100);
  color: var(--violet-700);
}

.evidence-strip {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 12px;
}

.evidence-strip a {
  position: relative;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
  color: var(--paper);
  text-decoration: none;
}

.evidence-strip img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.evidence-strip a::after {
  position: absolute;
  inset: auto 0 0;
  height: 72px;
  background: rgba(15, 23, 42, 0.9);
  content: "";
}

.evidence-strip span {
  position: absolute;
  right: 16px;
  bottom: 14px;
  left: 16px;
  z-index: 1;
  display: grid;
}

.evidence-strip small {
  color: #cbd5e1;
}

.next-entry {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(520px, 1.18fr);
  align-items: start;
  gap: 64px;
}

.next-entry > div > p:not(.section-label) {
  max-width: 600px;
  margin: 18px 0 0;
  color: #cbd5e1;
}

.next-entry .hero-actions {
  margin-top: 26px;
}

.intake-entry-panel {
  display: grid;
  gap: 20px;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: var(--radius-sm);
}

.intake-entry-panel h3,
.intake-entry-panel p,
.intake-entry-panel dl,
.intake-entry-panel dd {
  margin: 0;
}

.intake-entry-panel h3 {
  font-size: 22px;
}

.intake-entry-panel dl {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid rgba(255, 255, 255, 0.22);
  border-left: 1px solid rgba(255, 255, 255, 0.22);
}

.intake-entry-panel dl div {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 8px;
  padding: 11px;
  border-right: 1px solid rgba(255, 255, 255, 0.22);
  border-bottom: 1px solid rgba(255, 255, 255, 0.22);
  font-size: 12px;
}

.intake-entry-panel dt {
  color: #93c5fd;
  font-family: var(--font-data);
}

.intake-entry-panel p {
  color: #cbd5e1;
  font-size: 12px;
}

.intake-entry-panel .button {
  justify-self: start;
}

.section-band--dark .section-label {
  color: #93c5fd;
}

.consultation-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius-md);
}

.consultation-form h3,
.consultation-form .form-field--wide {
  grid-column: 1 / -1;
}

.consultation-form h3 {
  margin: 0 0 4px;
  font-size: 22px;
}

.form-field {
  display: grid;
  gap: 7px;
}

.form-field label {
  font-size: 12px;
  font-weight: 700;
}

.form-field input,
.form-field select,
.form-field textarea,
.search-field input {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--paper);
  color: var(--ink-950);
  outline: 0;
}

.form-field input,
.form-field select,
.search-field input {
  padding: 9px 11px;
}

.form-field textarea {
  min-height: 112px;
  padding: 10px 11px;
  resize: vertical;
}

.consultation-form--dark label {
  color: #cbd5e1;
}

.form-privacy {
  margin: 0;
  color: #94a3b8;
  font-size: 12px;
}

.form-feedback {
  margin: 0;
  padding: 14px;
  border: 1px solid rgba(147, 197, 253, 0.35);
  border-radius: var(--radius-sm);
  background: rgba(30, 41, 59, 0.75);
  color: #e2e8f0;
  font-family: var(--font-data);
  font-size: 12px;
  line-height: 1.75;
  white-space: pre-wrap;
}

.path-lines {
  display: grid;
  border-top: 1px solid var(--line-strong);
}

.path-lines a {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) auto;
  align-items: center;
  gap: 22px;
  min-height: 104px;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
}

.path-lines a:hover strong,
.path-lines a:hover b {
  color: var(--blue-700);
}

.path-lines > a > span {
  color: var(--blue-700);
  font-family: var(--font-data);
  font-size: 12px;
}

.path-lines div {
  display: grid;
}

.path-lines strong {
  font-size: 20px;
}

.path-lines small {
  color: var(--ink-650);
  font-size: 14px;
}

.path-lines b {
  color: var(--ink-650);
  font-size: 13px;
}

.catalog-controls {
  display: grid;
  gap: 20px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--paper);
}

.search-field {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  max-width: 720px;
  font-size: 13px;
  font-weight: 700;
}

.filter-group,
.tool-filter-bar {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr);
  align-items: start;
  gap: 12px;
}

.filter-group > span,
.tool-filter-bar > span {
  padding-top: 7px;
  color: var(--ink-500);
  font-size: 12px;
  font-weight: 700;
}

.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.filter-chips button {
  min-height: 34px;
  padding: 6px 11px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--paper);
  color: var(--ink-650);
  cursor: pointer;
  font-size: 12px;
  font-weight: 650;
}

.filter-chips button:hover,
.filter-chips button.is-active {
  border-color: var(--ink-950);
  background: var(--ink-950);
  color: var(--paper);
}

.catalog-summary {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin: 24px 0 14px;
  color: var(--ink-500);
  font-size: 13px;
}

.catalog-summary strong {
  color: var(--ink-950);
  font-family: var(--font-data);
  font-size: 22px;
}

.resource-gallery,
.open-project-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.resource-card {
  display: flex;
  min-width: 0;
  min-height: 290px;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--paper);
}

.resource-card--text {
  min-height: 230px;
}

.resource-card__media {
  display: block;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.resource-card__media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.resource-card__media.is-video-crop img {
  width: 132%;
  height: 132%;
  max-width: none;
  transform: translate(-12%, -8%);
}

.resource-card__body {
  display: flex;
  min-width: 0;
  flex: 1;
  flex-direction: column;
  padding: 20px;
}

.resource-card .text-link {
  margin-top: auto;
}

.empty-state {
  display: grid;
  gap: 4px;
  padding: 40px;
  border: 1px dashed var(--line-strong);
  color: var(--ink-500);
  text-align: center;
}

.empty-state strong {
  color: var(--ink-800);
}

.catalog-entry {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 22px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.catalog-entry p {
  margin: 0;
  color: var(--ink-650);
}

.catalog-more {
  display: flex;
  justify-content: center;
  padding-top: 28px;
}

.learning-route {
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.learning-route__linear {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 36px minmax(0, 1fr) 36px minmax(0, 1fr);
  align-items: stretch;
}

.learning-route__arrow {
  display: grid;
  place-items: center;
  color: var(--blue-600);
  font-family: var(--font-data);
  font-size: 20px;
}

.learning-node {
  min-width: 0;
  padding: 26px 24px;
  border-left: 3px solid transparent;
  transition: background-color 150ms ease, border-color 150ms ease;
}

.learning-node + .learning-node {
  border-left-color: var(--line);
}

.learning-node.is-recommended {
  border-left-color: var(--blue-600);
  background: #eff6ff;
}

.learning-node__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.learning-node__head span {
  color: var(--blue-700);
  font-family: var(--font-data);
  font-size: 11px;
  font-weight: 750;
}

.learning-node h3 {
  margin: 0;
  font-size: 20px;
  line-height: 1.35;
}

.learning-node dl {
  display: grid;
  gap: 8px;
  margin: 20px 0;
}

.learning-node dl div {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 10px;
}

.learning-node dt {
  color: var(--ink-500);
  font-size: 11px;
  font-weight: 700;
}

.learning-node dd {
  margin: 0;
  color: var(--ink-650);
  font-size: 13px;
}

.learning-branches {
  padding: 28px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.learning-branches__title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding: 0 24px 18px;
}

.learning-branches__title span {
  font-size: 22px;
  font-weight: 760;
}

.learning-branches__title small {
  color: var(--ink-500);
}

.learning-branches__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.learning-route__practice {
  border-top: 1px solid var(--line);
}

.learning-route__practice .learning-node {
  max-width: 900px;
  margin: 0 auto;
}

.learning-start {
  display: grid;
  grid-template-columns: minmax(220px, 0.62fr) minmax(0, 1.38fr);
  gap: 28px 44px;
  margin-top: 36px;
  padding: 28px;
  border: 1px solid var(--line);
  background: var(--surface);
}

.learning-start h3 {
  margin: 0 0 8px;
  font-size: 22px;
}

.learning-start p {
  margin: 0;
  color: var(--ink-650);
}

.learning-profile-tabs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-self: start;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--paper);
}

.learning-profile-tabs button {
  min-height: 44px;
  padding: 8px 12px;
  border: 0;
  border-right: 1px solid var(--line);
  background: transparent;
  color: var(--ink-650);
  cursor: pointer;
  font-size: 13px;
  font-weight: 700;
}

.learning-profile-tabs button:last-child {
  border-right: 0;
}

.learning-profile-tabs button.is-active {
  background: var(--ink-950);
  color: var(--paper);
}

.learning-recommendations {
  display: grid;
  grid-column: 1 / -1;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line-strong);
}

.learning-recommendations a {
  display: grid;
  gap: 3px;
  padding: 16px 18px 16px 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
}

.learning-recommendations a:nth-child(2n) {
  padding-left: 18px;
  border-left: 1px solid var(--line);
}

.learning-recommendations span {
  font-weight: 700;
}

.learning-recommendations strong {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--blue-700);
  font-size: 12px;
}

.learning-recommendations svg {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
}

.training-callout,
.contact-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 44px;
}

.training-callout > div:first-child,
.contact-band > div:first-child {
  max-width: 820px;
}

.training-callout p:not(.section-label),
.contact-band p:not(.section-label) {
  margin-top: 14px;
}

.learning-sequence {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line-strong);
}

.learning-sequence article {
  padding: 30px 36px 10px 0;
}

.learning-sequence article + article {
  padding-left: 36px;
  border-left: 1px solid var(--line);
}

.learning-sequence a {
  color: var(--blue-700);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.course-row {
  display: grid;
  grid-template-columns: 90px minmax(0, 1fr) auto;
  gap: 30px;
  align-items: start;
  padding: 34px 0;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 110px;
}

.course-row[data-course-anchor-active="true"] {
  border-top-color: var(--blue-600);
}

.dynamic-anchor-set {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.scene-stack {
  scroll-margin-top: 110px;
}

.course-row__main h3 {
  margin-top: 0;
  font-size: 26px;
}

.course-row dl {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 22px 0;
}

.course-row dl div {
  display: grid;
  gap: 3px;
}

.outcome-list {
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.outcome-list strong {
  font-size: 13px;
}

.outcome-list ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
}

.outcome-list li {
  position: relative;
  padding-left: 14px;
  color: var(--ink-650);
  font-size: 13px;
}

.outcome-list li::before {
  position: absolute;
  left: 0;
  color: var(--blue-600);
  content: "✓";
}

.course-row__action {
  padding-top: 8px;
}

.practice-layout,
.editorial-grid,
.mission-layout,
.business-grid,
.scope-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1.28fr);
  gap: 70px;
}

.practice-steps {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
  list-style: none;
}

.practice-steps li {
  display: grid;
  grid-template-columns: 38px 150px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.practice-steps span {
  color: var(--blue-700);
  font-family: var(--font-data);
  font-size: 11px;
}

.practice-steps small {
  color: var(--ink-650);
}

.faq-layout {
  display: grid;
  grid-template-columns: 0.65fr 1.35fr;
  gap: 70px;
}

.faq-layout h2 {
  margin: 0;
  font-size: 38px;
}

.faq-layout > div:first-child p {
  color: var(--ink-650);
}

.faq-list {
  border-top: 1px solid var(--line-strong);
}

.faq-list details {
  border-bottom: 1px solid var(--line);
}

.faq-list summary {
  padding: 20px 0;
  cursor: pointer;
  font-weight: 700;
}

.faq-list details p {
  max-width: var(--text-max);
  margin: -4px 0 20px;
  color: var(--ink-650);
}

.tool-filter-bar {
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.tool-catalog {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.tool-catalog__item {
  display: flex;
  min-width: 0;
  min-height: 0;
  flex-direction: column;
  padding: 0 26px 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--paper);
}

.tool-catalog__media,
.tool-catalog__placeholder {
  display: grid;
  width: calc(100% + 52px);
  aspect-ratio: 16 / 9;
  margin: 0 -26px 22px;
  overflow: hidden;
  place-items: center;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
  text-decoration: none;
}

.tool-catalog__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.tool-catalog__placeholder span {
  display: grid;
  width: 58px;
  height: 58px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--paper);
  color: var(--ink-500);
  font-family: var(--font-data);
  font-size: 13px;
  font-weight: 750;
}

.tool-catalog__header,
.tool-catalog__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.tool-catalog h3 {
  margin-top: 22px;
  font-size: 26px;
}

.tool-spec {
  display: grid;
  gap: 0;
  margin: 8px 0 24px;
  border-top: 1px solid var(--line);
}

.tool-spec > div {
  display: grid;
  grid-template-columns: 100px minmax(0, 1fr);
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-soft);
}

.tool-spec span,
.tool-spec ul {
  margin: 0;
  padding: 0;
  color: var(--ink-650);
  font-size: 13px;
  list-style: none;
}

.tool-spec li + li {
  margin-top: 3px;
}

.tool-spec .status {
  min-height: 22px;
  padding: 2px 7px;
  color: var(--ink-650);
  font-size: 10px;
}

.tool-spec .status--stable {
  color: var(--success-700);
}

.tool-spec .status--public_test {
  color: var(--blue-700);
}

.tool-spec .status--alpha,
.tool-spec .status--research {
  color: var(--amber-700);
}

.tool-spec .status--partner {
  color: var(--violet-700);
}

.tool-catalog__footer {
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.tool-catalog__footer > span {
  color: var(--ink-500);
  font-size: 12px;
}

.tool-feature {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
  align-items: center;
  gap: 54px;
}

.tool-feature__media {
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  background: var(--paper);
  box-shadow: var(--shadow-float);
}

.tool-feature__media img {
  width: 100%;
}

.tool-feature p:not(.section-label) {
  margin: 18px 0 24px;
}

.scene-stack {
  display: grid;
  grid-template-columns: minmax(330px, 0.78fr) minmax(0, 1.22fr);
  column-gap: 46px;
  padding: 48px 0;
  border-bottom: 1px solid var(--line);
}

.scene-stack__media {
  grid-row: 1 / 5;
  overflow: hidden;
  align-self: start;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
}

.scene-stack__media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.scene-stack--text {
  grid-template-columns: minmax(0, 1fr);
}

.scene-stack__intro h2,
.research-row h2 {
  margin: 12px 0 8px;
  font-size: 32px;
  line-height: 1.28;
}

.scene-stack__intro p {
  margin: 0;
  color: var(--ink-650);
}

.scene-stack__details {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
  margin-top: 26px;
}

.scene-stack h3 {
  margin: 0 0 8px;
  font-size: 14px;
}

.scene-stack ul {
  margin: 0;
  padding-left: 18px;
  color: var(--ink-650);
  font-size: 14px;
}

.scene-stack__resources {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.scene-stack__resources > div {
  display: grid;
  gap: 5px;
}

.scene-stack__resources strong {
  color: var(--ink-500);
  font-size: 11px;
}

.scene-stack__resources a {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--blue-700);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}

.scene-stack__next {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 24px;
}

.scene-stack__next > span {
  color: var(--ink-500);
  font-size: 11px;
  font-weight: 700;
}

.research-row--compact {
  grid-template-columns: minmax(220px, 0.48fr) minmax(0, 1.52fr);
}

.research-row--compact .research-row__body {
  max-width: 780px;
}

.editorial-copy {
  display: grid;
  gap: 18px;
}

.mission-layout {
  align-items: start;
}

.principle-list,
.business-lines,
.asset-register {
  border-top: 1px solid var(--line-strong);
}

.principle-list article,
.business-lines article {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 28px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.principle-list p,
.business-lines p {
  margin: 0;
}

.asset-register {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.asset-register a {
  display: grid;
  min-height: 120px;
  gap: 6px;
  padding: 24px 28px 24px 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
}

.asset-register a:nth-child(2n) {
  padding-left: 28px;
  border-left: 1px solid var(--line);
}

.asset-register a:hover strong {
  color: var(--blue-700);
}

.asset-register strong {
  font-size: 21px;
}

.asset-register span {
  color: var(--ink-650);
  font-size: 14px;
}

.scope-layout dl {
  margin: 0;
  border-top: 1px solid var(--line-strong);
}

.scope-layout dl div {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 22px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.contact-band p {
  color: #cbd5e1;
}

.site-footer {
  border-top: 1px solid var(--ink-800);
  background: var(--ink-950);
  color: #cbd5e1;
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr auto;
  align-items: center;
  gap: 30px;
  min-height: 120px;
}

.site-footer__brand {
  display: grid;
}

.site-footer__brand strong {
  color: var(--paper);
}

.site-footer__brand span {
  color: #94a3b8;
  font-size: 12px;
}

.site-footer__nav,
.site-footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  font-size: 12px;
}

.site-footer a {
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--paper);
}

@media (max-width: 1040px) {
  .site-nav a {
    padding: 0 10px;
    font-size: 13px;
  }

  .site-nav a[aria-current="page"]::after {
    right: 10px;
    left: 10px;
  }

  .home-hero__grid {
    grid-template-columns: 1fr;
    gap: 38px;
    min-height: 0;
  }

  .asset-mosaic {
    grid-template-rows: repeat(2, 190px);
  }

  .next-entry {
    grid-template-columns: 1fr;
  }

  .resource-gallery,
  .open-project-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .course-row {
    grid-template-columns: 70px minmax(0, 1fr);
  }

  .course-row__action {
    grid-column: 2;
  }

  .tool-feature {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  :root {
    --header-height: 58px;
  }

  .site-header__inner {
    grid-template-columns: auto 1fr auto;
    padding: 0 14px;
  }

  .brand__copy small,
  #dashboardEntry span {
    display: none;
  }

  .brand img {
    width: 30px;
    height: 30px;
  }

  .site-menu-button {
    display: inline-grid !important;
  }

  .site-nav {
    position: absolute;
    top: var(--header-height);
    right: 0;
    left: 0;
    display: none;
    height: auto;
    padding: 8px 14px 16px;
    border-bottom: 1px solid var(--line);
    background: var(--paper);
    box-shadow: var(--shadow-float);
  }

  .site-nav.is-open {
    display: grid;
  }

  .site-nav a {
    min-height: 46px;
    padding: 0 10px;
    border-bottom: 1px solid var(--line-soft);
  }

  .site-nav a[aria-current="page"]::after {
    inset: 10px auto 10px 0;
    width: 3px;
    height: auto;
  }

  .section-heading,
  .practice-layout,
  .editorial-grid,
  .mission-layout,
  .business-grid,
  .scope-layout,
  .faq-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .capability-lines,
  .learning-sequence {
    grid-template-columns: 1fr;
  }

  .learning-route__linear {
    grid-template-columns: 1fr;
  }

  .learning-route__linear .learning-route__arrow {
    min-height: 34px;
  }

  .learning-branches__grid {
    grid-template-columns: 1fr;
  }

  .learning-node,
  .learning-node + .learning-node {
    border-bottom: 1px solid var(--line);
    border-left-color: transparent;
  }

  .learning-node.is-recommended {
    border-left-color: var(--blue-600);
  }

  .learning-start {
    grid-template-columns: 1fr;
  }

  .learning-recommendations {
    grid-column: auto;
  }

  .capability-lines article,
  .capability-lines article + article,
  .learning-sequence article,
  .learning-sequence article + article {
    padding: 24px 0;
    border-left: 0;
    border-bottom: 1px solid var(--line);
  }

  .focus-row,
  .research-row,
  .scene-stack {
    grid-template-columns: 1fr;
  }

  .scene-stack__media {
    grid-row: auto;
  }

  .evidence-strip {
    grid-template-columns: 1fr 1fr;
  }

  .evidence-strip a:first-child {
    grid-column: 1 / -1;
  }

  .training-callout,
  .contact-band {
    align-items: flex-start;
    flex-direction: column;
  }

  .course-row dl {
    grid-template-columns: 1fr;
  }

  .tool-catalog {
    grid-template-columns: 1fr;
  }

  .tool-catalog__item {
    min-height: 0;
  }

  .intake-entry-panel dl {
    grid-template-columns: 1fr;
  }

  .site-footer__inner {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 30px 0;
  }
}

@media (max-width: 560px) {
  .content-frame,
  .section-inner,
  .metric-toolbar__inner,
  .site-footer__inner {
    width: min(calc(100% - 28px), var(--content-max));
  }

  .site-actions {
    gap: 6px;
  }

  .icon-button {
    width: 36px;
    height: 36px;
  }

  .home-hero__grid {
    padding: 44px 0 34px;
  }

  .home-hero__copy h1 {
    font-size: 36px;
    line-height: 1.18;
  }

  .home-hero__copy > p:not(.section-label),
  .page-intro > p:not(.section-label) {
    font-size: 16px;
    line-height: 1.75;
  }

  .hero-actions {
    align-items: stretch;
  }

  .hero-actions .button {
    flex: 1 1 140px;
  }

  .hero-actions .text-link {
    flex-basis: 100%;
    margin: 4px 0 0;
  }

  .asset-mosaic {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: 210px 120px;
  }

  .asset-mosaic__primary {
    grid-column: 1 / -1;
    grid-row: auto;
  }

  .asset-mosaic span {
    right: 10px;
    bottom: 8px;
    left: 10px;
  }

  .asset-mosaic small {
    display: none;
  }

  .metric-toolbar__inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .metric-item,
  .metric-item:first-child {
    padding: 16px;
    border: 0;
    border-right: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }

  .metric-item:nth-child(2n) {
    border-right: 0;
  }

  .metric-item:nth-last-child(-n + 2) {
    border-bottom: 0;
  }

  .metric-item__value {
    font-size: 21px;
  }

  .page-intro {
    padding: 44px 0 34px;
  }

  .page-intro h1 {
    font-size: 34px;
    line-height: 1.2;
  }

  .section-inner {
    padding: 46px 0;
  }

  .section-band--flush .section-inner {
    padding-top: 18px;
  }

  .section-heading {
    gap: 14px;
    margin-bottom: 28px;
  }

  .section-heading h2,
  .section-inner > h2,
  .training-callout h2,
  .tool-feature h2,
  .next-entry h2,
  .editorial-grid h2,
  .mission-layout h2,
  .business-grid h2,
  .practice-layout h2,
  .contact-band h2,
  .faq-layout h2 {
    font-size: 31px;
  }

  .focus-row,
  .research-row {
    gap: 20px;
    padding: 28px 0;
  }

  .focus-row dl div,
  .research-row dl div {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .evidence-strip {
    grid-template-columns: 1fr;
  }

  .evidence-strip a:first-child {
    grid-column: auto;
  }

  .consultation-form {
    grid-template-columns: 1fr;
    padding: 20px;
  }

  .consultation-form h3,
  .consultation-form .form-field--wide {
    grid-column: auto;
  }

  .path-lines a {
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 12px;
    padding: 18px 0;
  }

  .path-lines b {
    grid-column: 2;
  }

  .catalog-controls {
    padding: 18px;
  }

  .catalog-entry,
  .scene-stack__next {
    align-items: stretch;
    flex-direction: column;
  }

  .catalog-entry .button,
  .scene-stack__next .button {
    width: 100%;
  }

  .learning-node {
    padding: 22px 14px;
  }

  .learning-node dl div {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .learning-branches__title {
    align-items: flex-start;
    flex-direction: column;
    padding-right: 14px;
    padding-left: 14px;
  }

  .learning-start {
    padding: 18px;
  }

  .learning-profile-tabs,
  .learning-recommendations {
    grid-template-columns: 1fr;
  }

  .learning-profile-tabs button,
  .learning-profile-tabs button:last-child {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .learning-profile-tabs button:last-child {
    border-bottom: 0;
  }

  .learning-recommendations a,
  .learning-recommendations a:nth-child(2n) {
    padding: 14px 0;
    border-left: 0;
  }

  .search-field,
  .filter-group,
  .tool-filter-bar {
    grid-template-columns: 1fr;
    gap: 7px;
  }

  .filter-group > span,
  .tool-filter-bar > span {
    padding-top: 0;
  }

  .resource-gallery,
  .open-project-grid {
    grid-template-columns: 1fr;
  }

  .resource-card {
    min-height: 0;
  }

  .course-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .course-row__action {
    grid-column: auto;
  }

  .course-row__action .button {
    width: 100%;
  }

  .practice-steps li {
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 10px;
  }

  .practice-steps small {
    grid-column: 2;
  }

  .tool-spec > div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .tool-catalog__footer {
    align-items: stretch;
    flex-direction: column;
  }

  .tool-catalog__footer .button {
    width: 100%;
  }

  .scene-stack {
    gap: 20px;
    padding: 34px 0;
  }

  .scene-stack__details,
  .scene-stack__resources {
    grid-template-columns: 1fr;
  }

  .principle-list article,
  .business-lines article {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .asset-register {
    grid-template-columns: 1fr;
  }

  .asset-register a,
  .asset-register a:nth-child(2n) {
    min-height: 0;
    padding: 20px 0;
    border-left: 0;
  }

  .scope-layout dl div {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}

/* Authenticated resource downloads */
.section-heading__note {
  max-width: 620px;
  margin: 10px 0 0;
  color: var(--ink-650);
  font-size: 14px;
  line-height: 1.7;
}

.download-status {
  min-height: 22px;
  margin: 0 0 12px;
  color: var(--ink-650);
  font-size: 13px;
}

.download-row__actions .button.is-loading {
  cursor: wait;
  opacity: 0.72;
}

/* RC6: navigation, resource taxonomy and tool priority */
.site-nav__toolbox {
  display: none !important;
}

.heritage-site-header .brand {
  min-width: 96px;
}

.heritage-site-header .brand img {
  width: 96px;
  height: 42px;
}

.site-toolbox-link {
  white-space: nowrap;
}

.home-quick-actions {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.home-quick-actions__inner {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.home-quick-action {
  display: grid;
  min-height: 92px;
  align-content: center;
  gap: 5px;
  padding: 18px 22px;
  border-right: 1px solid var(--line);
  color: var(--ink-950);
  text-decoration: none;
}

.home-quick-action:first-child {
  border-left: 1px solid var(--line);
}

.home-quick-action strong {
  font-size: 15px;
}

.home-quick-action span {
  color: var(--ink-500);
  font-size: 12px;
}

.home-quick-action:hover {
  background: var(--surface);
}

.home-quick-action--primary {
  background: var(--ink-950);
  color: var(--paper);
}

.home-quick-action--primary span {
  color: #cbd5e1;
}

.home-quick-action--primary:hover {
  background: var(--blue-700);
}

.knowledge-type-tabs {
  display: flex;
  gap: 8px;
  margin-top: 18px;
  padding-bottom: 2px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.knowledge-type-tabs button {
  min-height: 38px;
  flex: 0 0 auto;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink-650);
  cursor: pointer;
  font: inherit;
  font-size: 13px;
  font-weight: 700;
}

.knowledge-type-tabs button.is-active {
  border-color: var(--ink-950);
  background: var(--ink-950);
  color: var(--paper);
}

.knowledge-hub-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.knowledge-hub {
  display: grid;
  min-height: 230px;
  align-content: space-between;
  gap: 18px;
  padding: 24px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink-950);
  text-decoration: none;
}

.knowledge-hub > div {
  display: grid;
  gap: 12px;
}

.knowledge-hub > div > span {
  color: var(--blue-700);
  font-size: 13px;
  font-weight: 750;
}

.knowledge-hub strong {
  font-size: 34px;
  line-height: 1;
}

.knowledge-hub strong small {
  margin-left: 5px;
  font-size: 12px;
  font-weight: 700;
}

.knowledge-hub p {
  color: var(--ink-650);
  font-size: 14px;
  line-height: 1.75;
}

.knowledge-hub em {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--blue-700);
  font-size: 13px;
  font-style: normal;
  font-weight: 750;
}

.knowledge-hub em svg {
  width: 15px;
  height: 15px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
}

.knowledge-hub:hover {
  background: var(--surface);
}

.knowledge-result-groups,
.knowledge-latest__groups {
  display: grid;
  gap: 42px;
}

.knowledge-result-group,
.knowledge-latest-group {
  display: grid;
  gap: 18px;
}

.knowledge-result-group__head,
.knowledge-latest-group__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.knowledge-result-group__head > div {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.knowledge-result-group__head h3,
.knowledge-latest-group__head h3 {
  margin: 0;
  font-size: 22px;
}

.knowledge-result-group__head span {
  color: var(--ink-500);
  font-size: 12px;
}

.knowledge-result-group__head button {
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
}

.knowledge-result-grid,
.knowledge-latest-group__items {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.knowledge-result-grid--article,
.knowledge-result-grid--course {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.knowledge-card {
  display: grid;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--paper);
}

.knowledge-card__media {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.knowledge-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.knowledge-card__media.is-contain img {
  padding: 12px;
  object-fit: contain;
}

.knowledge-card__body {
  display: grid;
  align-content: start;
  gap: 12px;
  padding: 20px;
}

.knowledge-card__body h3 {
  margin: 0;
  font-size: 18px;
  line-height: 1.45;
}

.knowledge-card__meta,
.knowledge-card__labels {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  color: var(--ink-500);
  font-size: 11px;
}

.knowledge-card__meta em {
  padding: 3px 7px;
  border: 1px solid #bfdbfe;
  border-radius: 999px;
  color: var(--blue-700);
  font-style: normal;
  font-weight: 750;
}

.knowledge-card__summary {
  display: -webkit-box;
  overflow: hidden;
  color: var(--ink-650);
  font-size: 13px;
  line-height: 1.7;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.knowledge-card__detail {
  color: var(--ink-650);
  font-size: 12px;
  line-height: 1.65;
}

.knowledge-card .text-link {
  align-self: end;
  margin-top: 4px;
}

.knowledge-card--article,
.knowledge-card--course {
  min-height: 230px;
}

.knowledge-card--article .knowledge-card__body,
.knowledge-card--course .knowledge-card__body {
  grid-template-rows: auto auto 1fr auto;
}

.knowledge-featured-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  font-size: 12px;
}

.knowledge-featured-links strong {
  color: var(--ink-500);
}

.knowledge-featured-links a {
  color: var(--blue-700);
  text-decoration: none;
}

.tool-directory-hero .content-frame {
  padding-top: 54px;
  padding-bottom: 54px;
}

.tool-directory-hero .heritage-hero__copy {
  max-width: 900px;
}

.tool-directory-hero .heritage-hero__copy h1 {
  max-width: 760px;
  font-size: 50px;
}

.tool-core,
.tool-services {
  display: grid;
}

.tool-catalog__item--core,
.tool-catalog__item--service {
  grid-template-columns: minmax(180px, 0.7fr) minmax(260px, 1fr) minmax(360px, 1.4fr) auto;
  align-items: center;
  gap: 24px;
  min-height: 0;
  padding: 28px;
}

.tool-catalog__item--core {
  border-color: #bfdbfe;
  background: #f8fbff;
}

.tool-catalog__item--core .tool-catalog__header,
.tool-catalog__item--service .tool-catalog__header {
  grid-column: 1;
}

.tool-catalog__item--core h3,
.tool-catalog__item--service h3 {
  grid-column: 1;
  font-size: 24px;
}

.tool-catalog__task {
  color: var(--ink-650);
  line-height: 1.7;
}

.tool-catalog__item--core .tool-catalog__task,
.tool-catalog__item--service .tool-catalog__task {
  grid-row: 1 / span 2;
  grid-column: 2;
}

.tool-catalog__io {
  display: grid;
  gap: 10px;
  margin: 0;
}

.tool-catalog__io div {
  display: grid;
  gap: 3px;
}

.tool-catalog__io dt {
  color: var(--ink-500);
  font-size: 11px;
  font-weight: 750;
}

.tool-catalog__io dd {
  margin: 0;
  color: var(--ink-650);
  font-size: 13px;
  line-height: 1.6;
}

.tool-catalog__item--core .tool-catalog__io,
.tool-catalog__item--service .tool-catalog__io {
  grid-row: 1 / span 2;
  grid-column: 3;
}

.tool-catalog__labels {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.tool-catalog__labels > span:not(.status) {
  padding: 5px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-650);
  font-size: 11px;
}

.tool-catalog__item--core .tool-catalog__labels,
.tool-catalog__item--service .tool-catalog__labels {
  grid-row: 1;
  grid-column: 4;
  justify-content: flex-end;
}

.tool-catalog__item--core .tool-catalog__footer,
.tool-catalog__item--service .tool-catalog__footer {
  grid-row: 2;
  grid-column: 4;
}

@media (max-width: 1120px) {
  .site-toolbox-link {
    padding-right: 12px;
    padding-left: 12px;
  }

  .tool-catalog__item--core,
  .tool-catalog__item--service {
    grid-template-columns: minmax(180px, 0.8fr) minmax(240px, 1.2fr) auto;
  }

  .tool-catalog__item--core .tool-catalog__task,
  .tool-catalog__item--service .tool-catalog__task {
    grid-row: 1 / span 2;
    grid-column: 2;
  }

  .tool-catalog__item--core .tool-catalog__io,
  .tool-catalog__item--service .tool-catalog__io {
    grid-row: 3;
    grid-column: 1 / span 2;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .tool-catalog__item--core .tool-catalog__labels,
  .tool-catalog__item--service .tool-catalog__labels {
    grid-row: 1;
    grid-column: 3;
  }

  .tool-catalog__item--core .tool-catalog__footer,
  .tool-catalog__item--service .tool-catalog__footer {
    grid-row: 2;
    grid-column: 3;
  }
}

@media (max-width: 820px) {
  .site-toolbox-link {
    display: none;
  }

  .site-nav__toolbox {
    display: flex !important;
    margin-bottom: 6px;
    border: 1px solid var(--ink-950);
    border-radius: 12px;
    background: var(--ink-950);
    color: var(--paper) !important;
  }

  .heritage-site-header .brand {
    min-width: 0;
  }

  .heritage-site-header .brand img {
    width: 78px;
    height: 36px;
  }

  .home-quick-actions__inner,
  .knowledge-hub-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .knowledge-result-grid,
  .knowledge-result-grid--article,
  .knowledge-result-grid--course,
  .knowledge-latest-group__items {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .tool-catalog__item--core,
  .tool-catalog__item--service {
    grid-template-columns: 1fr auto;
  }

  .tool-catalog__item--core .tool-catalog__task,
  .tool-catalog__item--service .tool-catalog__task,
  .tool-catalog__item--core .tool-catalog__io,
  .tool-catalog__item--service .tool-catalog__io {
    grid-row: auto;
    grid-column: 1 / -1;
  }

  .tool-catalog__item--core .tool-catalog__labels,
  .tool-catalog__item--service .tool-catalog__labels {
    grid-row: 1;
    grid-column: 2;
  }

  .tool-catalog__item--core .tool-catalog__footer,
  .tool-catalog__item--service .tool-catalog__footer {
    grid-row: auto;
    grid-column: 1 / -1;
  }
}

@media (max-width: 560px) {
  .home-quick-actions__inner,
  .knowledge-hub-grid,
  .knowledge-result-grid,
  .knowledge-result-grid--article,
  .knowledge-result-grid--course,
  .knowledge-latest-group__items {
    grid-template-columns: 1fr;
  }

  .home-quick-action {
    min-height: 74px;
    border-left: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }

  .knowledge-hub {
    min-height: 190px;
  }

  .knowledge-result-group__head,
  .knowledge-latest-group__head {
    align-items: flex-start;
  }

  .knowledge-card--article,
  .knowledge-card--course {
    min-height: 0;
  }

  .tool-directory-hero .content-frame {
    padding-top: 40px;
    padding-bottom: 40px;
  }

  .tool-directory-hero .heritage-hero__copy h1 {
    font-size: 36px;
  }

  .tool-catalog__item--core,
  .tool-catalog__item--service {
    grid-template-columns: 1fr;
    padding: 22px;
  }

  .tool-catalog__item--core .tool-catalog__header,
  .tool-catalog__item--service .tool-catalog__header,
  .tool-catalog__item--core h3,
  .tool-catalog__item--service h3,
  .tool-catalog__item--core .tool-catalog__labels,
  .tool-catalog__item--service .tool-catalog__labels,
  .tool-catalog__item--core .tool-catalog__task,
  .tool-catalog__item--service .tool-catalog__task,
  .tool-catalog__item--core .tool-catalog__io,
  .tool-catalog__item--service .tool-catalog__io,
  .tool-catalog__item--core .tool-catalog__footer,
  .tool-catalog__item--service .tool-catalog__footer {
    grid-row: auto;
    grid-column: 1;
  }
}

/* RC5 public-copy layout adjustments */
.home-scene {
  display: flex;
  min-height: 280px;
}

.home-scene__body {
  display: flex;
  width: 100%;
  flex-direction: column;
}

.home-scene__body > p {
  min-height: 0;
}

.home-scene__labels {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 22px;
}

.home-scene__labels span {
  padding: 6px 10px;
  border: 1px solid var(--line);
  color: var(--ink-650);
  font-size: 12px;
}

.home-scene__body .text-link {
  margin-top: auto;
}

.learning-node__description,
.learning-node__recommendation,
.learning-node__result {
  margin: 0 0 12px;
  color: var(--ink-650);
}

.learning-node__recommendation {
  color: var(--ink-800);
}

.learning-node__result {
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 13px;
}

.resource-type-entry em {
  color: var(--blue-700);
  font-size: 12px;
  font-style: normal;
  font-weight: 700;
}

.course-open-foundation {
  display: flex;
  gap: 32px;
  align-items: center;
  justify-content: space-between;
  padding: 26px 0;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line);
}

.course-open-foundation span,
.course-row__stage span {
  color: var(--blue-700);
  font-size: 12px;
  font-weight: 750;
}

.course-open-foundation h3 {
  margin: 6px 0;
  font-size: 24px;
}

.course-open-foundation p,
.course-row__audience,
.course-row__result {
  margin: 8px 0 0;
  color: var(--ink-650);
  font-size: 14px;
}

.course-row__audience strong,
.course-row__result strong {
  color: var(--ink-800);
}

.tool-catalog__item {
  min-height: 300px;
}

.tool-catalog__item > .status {
  align-self: flex-start;
  margin-top: 18px;
}

.scene-stack {
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
}

.scene-stack__intro,
.scene-stack__details,
.scene-stack__next {
  grid-column: auto;
}

.scene-stack__details p {
  color: var(--ink-650);
}

.research-row,
.research-row--text {
  min-height: 280px;
}

.research-row__body {
  display: flex;
  min-height: 220px;
  flex-direction: column;
}

.research-row__body .text-link {
  margin-top: auto;
}

.about-mission-lead {
  margin: 18px 0 0;
  color: var(--blue-700);
  font-size: 22px;
  font-weight: 750;
}

.about-audience-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
  list-style: none;
}

.about-audience-list li {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink-800);
}

.labs-direction-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line-strong);
}

.labs-direction-grid article {
  padding: 24px 24px 4px 0;
  border-right: 1px solid var(--line);
}

.labs-direction-grid article + article {
  padding-left: 24px;
}

.labs-direction-grid article:last-child {
  border-right: 0;
}

.labs-direction-grid h3,
.labs-direction-grid p {
  margin: 0;
}

.labs-direction-grid p {
  margin-top: 10px;
  color: var(--ink-650);
}

.section-action {
  display: flex;
  justify-content: flex-end;
  margin-top: 28px;
}

.zpl-sequence {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
  list-style: none;
}

.zpl-sequence li {
  padding: 24px 24px 0 0;
  border-right: 1px solid var(--line);
}

.zpl-sequence li + li {
  padding-left: 24px;
}

.zpl-sequence li:last-child {
  border-right: 0;
}

.zpl-sequence span {
  color: var(--blue-700);
  font-family: var(--font-data);
  font-size: 11px;
}

.zpl-sequence p {
  margin: 10px 0 0;
  color: var(--ink-650);
}

@media (max-width: 820px) {
  .course-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .course-row__action {
    padding-top: 0;
  }

  .labs-direction-grid,
  .zpl-sequence {
    grid-template-columns: 1fr;
  }

  .labs-direction-grid article,
  .labs-direction-grid article + article,
  .zpl-sequence li,
  .zpl-sequence li + li {
    padding: 20px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
}

@media (max-width: 560px) {
  .course-open-foundation,
  .section-action {
    align-items: stretch;
    flex-direction: column;
  }

  .course-open-foundation .button,
  .section-action .button {
    width: 100%;
  }

  .home-scene,
  .tool-catalog__item,
  .research-row,
  .research-row--text {
    min-height: 0;
  }
}

/* RC4: production-aligned shared composition */
body {
  background: var(--surface-strong);
  line-height: 1.6;
}

.site-header {
  min-height: var(--header-height);
  background: var(--paper);
  backdrop-filter: none;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
}

.site-header__inner {
  min-height: var(--header-height);
  padding: 0 32px;
}

.brand {
  gap: 12px;
}

.brand img {
  width: 40px;
  height: 40px;
}

.brand__copy strong {
  font-size: 16px;
  font-weight: 800;
}

.brand__copy small {
  margin-top: 2px;
  font-size: 11px;
}

.site-nav {
  height: var(--header-height);
}

.site-nav a {
  padding: 0 15px;
  color: var(--ink-650);
  font-size: 14px;
  font-weight: 650;
}

.site-nav a[aria-current="page"]::after {
  right: 15px;
  left: 15px;
  height: 2px;
}

.icon-button,
.button {
  border-radius: 999px;
}

.button {
  min-height: 44px;
  padding: 10px 20px;
}

.button--compact {
  min-height: 38px;
  padding: 8px 15px;
}

.page-shell {
  background: var(--surface-strong);
}

.content-frame,
.section-inner,
.metric-toolbar__inner,
.site-footer__inner {
  width: min(calc(100% - 64px), var(--content-max));
}

.section-label {
  margin-bottom: 10px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 750;
  text-transform: none;
}

.home-hero {
  background: var(--paper);
}

.home-hero__grid {
  grid-template-columns: minmax(0, 1.04fr) minmax(430px, 0.96fr);
  gap: 72px;
  min-height: 540px;
  padding: 70px 0;
}

.home-hero__copy h1 {
  max-width: 760px;
  font-size: 48px;
  font-weight: 900;
  line-height: 1.1;
}

.home-hero__copy > p:not(.section-label) {
  max-width: 690px;
  margin-top: 24px;
  font-size: 18px;
  line-height: 1.78;
}

.hero-actions {
  margin-top: 28px;
}

.home-system-map {
  padding: 20px 24px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
}

.home-system-map__title {
  margin: 0 0 8px;
  color: var(--ink-500);
  font-size: 12px;
  font-weight: 700;
}

.home-system-map__node {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  align-items: center;
  gap: 14px;
  min-height: 86px;
  padding: 12px 0;
  color: var(--ink-950);
  text-decoration: none;
}

.home-system-map__node:hover strong {
  color: var(--blue-700);
}

.home-system-map__icon {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--blue-100);
  border-radius: var(--radius-sm);
  background: var(--paper);
  color: var(--blue-700);
  font-family: var(--font-data);
  font-size: 11px;
  font-weight: 800;
}

.home-system-map__node > span:last-child {
  display: grid;
  gap: 3px;
}

.home-system-map__node strong {
  font-size: 17px;
}

.home-system-map__node small {
  color: var(--ink-500);
  font-size: 13px;
}

.home-system-map__connector {
  display: block;
  width: 1px;
  height: 18px;
  margin-left: 21px;
  background: var(--line-strong);
}

.metric-toolbar {
  background: var(--surface);
}

.metric-toolbar__inner {
  border-right: 1px solid var(--line);
  background: var(--paper);
}

.metric-item {
  padding: 20px 26px;
}

.metric-item__value {
  font-size: 25px;
}

.page-intro {
  padding: 66px 0 50px;
}

.page-intro h1 {
  max-width: 920px;
  font-size: 48px;
  font-weight: 900;
  line-height: 1.18;
}

.page-intro > p:not(.section-label) {
  margin-top: 18px;
  font-size: 17px;
  line-height: 1.78;
}

.section-band {
  border-top-color: var(--line);
}

.section-band--soft {
  background: var(--surface);
}

.section-inner {
  padding: 64px 0;
}

.section-band--flush .section-inner {
  padding-top: 28px;
}

.section-heading {
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.56fr);
  align-items: start;
  gap: 44px;
  margin-bottom: 34px;
}

.section-heading h2,
.section-inner > h2,
.training-callout h2,
.tool-feature h2,
.next-entry h2,
.editorial-grid h2,
.mission-layout h2,
.business-grid h2,
.practice-layout h2,
.contact-band h2,
.tool-guidance h2,
.resource-repository h2 {
  font-size: 34px;
  font-weight: 850;
  line-height: 1.26;
}

.capability-lines {
  border-bottom: 1px solid var(--line);
}

.capability-lines article {
  padding: 27px 34px 28px 0;
}

.capability-lines article + article {
  padding-left: 34px;
}

.capability-lines h3,
.resource-card h3,
.tool-catalog h3,
.course-row h3,
.home-scene h3,
.principle-list h3,
.business-lines h3 {
  margin-top: 10px;
  font-size: 21px;
}

.focus-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  border: 0;
}

.home-scene {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--paper);
}

.home-scene__diagram {
  padding: 18px;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.home-scene__body {
  padding: 24px;
}

.home-scene__body > p {
  min-height: 52px;
  margin: 0 0 16px;
  color: var(--ink-650);
}

.home-scene dl {
  margin: 0 0 18px;
}

.home-scene dl div {
  display: grid;
  gap: 3px;
}

.home-scene dt {
  color: var(--ink-500);
  font-size: 12px;
  font-weight: 700;
}

.home-scene dd {
  margin: 0;
  color: var(--ink-800);
  font-size: 14px;
}

.home-final {
  background: var(--paper);
}

.home-final__inner,
.contact-band,
.training-callout,
.resource-repository {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.home-final__inner h2,
.contact-band h2 {
  max-width: 760px;
  margin: 0;
}

.knowledge-search-band .section-inner {
  padding-top: 0;
  padding-bottom: 40px;
}

.knowledge-search {
  display: flex;
  max-width: 880px;
  gap: 10px;
}

.knowledge-search label {
  flex: 1;
}

.knowledge-search input {
  width: 100%;
  height: 54px;
  padding: 0 18px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--paper);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.05);
  font-size: 16px;
}

.knowledge-search input:focus {
  border-color: var(--blue-600);
  outline: 3px solid rgba(37, 99, 235, 0.14);
}

.quick-topics {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
}

.quick-topics > span {
  margin-right: 4px;
  color: var(--ink-500);
  font-size: 12px;
  font-weight: 700;
}

.quick-topics button,
.filter-chips button {
  min-height: 34px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink-650);
  cursor: pointer;
  font-size: 12px;
  font-weight: 650;
}

.quick-topics button:hover,
.quick-topics button.is-active,
.filter-chips button:hover,
.filter-chips button.is-active {
  border-color: var(--blue-600);
  background: #eff6ff;
  color: var(--blue-700);
}

.knowledge-filters {
  max-width: 880px;
  margin-top: 16px;
  border-top: 1px solid var(--line);
}

.knowledge-filters summary {
  width: fit-content;
  padding: 12px 0;
  color: var(--ink-650);
  cursor: pointer;
  font-size: 13px;
  font-weight: 700;
}

.knowledge-filters .filter-group {
  margin-top: 10px;
}

.active-results {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.resource-gallery,
.open-project-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.resource-card {
  min-height: 250px;
  border-radius: var(--radius-sm);
}

.resource-card--text {
  min-height: 250px;
}

.resource-card__body {
  padding: 22px;
}

.resource-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.resource-card__icon,
.learning-node__icon,
.engineering-branch__icon,
.tool-catalog__icon,
.research-row__icon,
.resource-hub__icon {
  display: inline-grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--blue-700);
}

.resource-card__icon svg,
.learning-node__icon svg,
.engineering-branch__icon svg,
.tool-catalog__icon svg,
.research-row__icon svg,
.resource-hub__icon svg {
  width: 19px;
  height: 19px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.7;
}

.learning-route {
  border: 0;
}

.learning-route__linear {
  grid-template-columns: minmax(0, 1fr) 34px minmax(0, 1fr) 34px minmax(0, 1fr);
  align-items: stretch;
}

.learning-route__arrow {
  font-size: 18px;
}

.learning-node {
  padding: 23px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--paper);
}

.learning-node + .learning-node {
  border-left-color: var(--line);
}

.learning-node.is-recommended {
  border-color: var(--blue-600);
  background: #eff6ff;
}

.learning-node__head {
  display: grid;
  grid-template-columns: 38px auto minmax(0, 1fr);
  align-items: center;
  gap: 10px;
}

.learning-node h3 {
  font-size: 18px;
}

.learning-node dl {
  gap: 0;
  margin: 18px 0;
  border-top: 1px solid var(--line);
}

.learning-node dl div {
  grid-template-columns: 58px minmax(0, 1fr);
  padding: 9px 0;
  border-bottom: 1px solid var(--line-soft);
}

.learning-node dt,
.learning-node dd {
  font-size: 12px;
}

.learning-start {
  margin-top: 20px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
}

.learning-profile-tabs {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
}

.learning-profile-tabs button.is-active {
  background: var(--ink-950);
  color: var(--paper);
}

.engineering-branches {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.engineering-branch {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  column-gap: 16px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--paper);
}

.engineering-branch__icon {
  grid-row: 1 / 5;
}

.engineering-branch h3,
.engineering-branch p,
.engineering-branch dl {
  grid-column: 2;
}

.engineering-branch h3 {
  margin: 0;
  font-size: 19px;
}

.engineering-branch p {
  margin: 7px 0 14px;
  color: var(--ink-650);
  font-size: 14px;
}

.engineering-branch dl {
  display: grid;
  gap: 7px;
  margin: 0 0 16px;
}

.engineering-branch dl div {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 8px;
}

.engineering-branch dt {
  color: var(--ink-500);
  font-size: 11px;
  font-weight: 700;
}

.engineering-branch dd {
  margin: 0;
  color: var(--ink-800);
  font-size: 12px;
}

.engineering-branch .text-link {
  grid-column: 2;
}

.resource-type-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line);
}

.resource-type-entry {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 5px 12px;
  min-width: 0;
  padding: 22px 20px;
  border-right: 1px solid var(--line);
  text-decoration: none;
}

.resource-type-entry:last-child {
  border-right: 0;
}

.resource-type-entry > span {
  color: var(--blue-700);
  font-family: var(--font-data);
  font-size: 11px;
}

.resource-type-entry strong {
  font-size: 16px;
}

.resource-type-entry small {
  grid-column: 2;
  color: var(--ink-500);
  font-size: 12px;
}

.resource-type-entry svg {
  grid-column: 3;
  grid-row: 1 / 3;
  align-self: center;
  width: 16px;
  fill: none;
  stroke: currentColor;
}

.resource-type-entry:hover strong {
  color: var(--blue-700);
}

.resource-hub {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px;
  margin-bottom: 18px;
  padding: 22px;
  border: 1px solid var(--blue-100);
  border-radius: var(--radius-sm);
  background: #eff6ff;
}

.resource-hub h3,
.resource-hub p,
.resource-hub .section-label {
  margin: 0;
}

.resource-hub h3 {
  font-size: 19px;
}

.resource-hub p {
  margin-top: 5px;
  color: var(--ink-650);
  font-size: 13px;
}

.tool-catalog {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.tool-catalog__item {
  min-height: 360px;
  padding: 24px;
  border-radius: var(--radius-sm);
}

.tool-catalog__header {
  justify-content: flex-start;
}

.tool-catalog h3 {
  margin-top: 18px;
  font-size: 24px;
}

.tool-spec {
  margin-bottom: 18px;
}

.tool-guidance {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(520px, 1.28fr);
  align-items: start;
  gap: 56px;
}

.tool-guidance ol {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
  list-style: none;
}

.tool-guidance li {
  display: grid;
  gap: 6px;
  padding: 20px 18px 0;
  border-left: 1px solid var(--line);
}

.tool-guidance li:first-child {
  border-left: 0;
}

.tool-guidance li span {
  color: var(--blue-700);
  font-family: var(--font-data);
  font-size: 11px;
}

.tool-guidance li small {
  color: var(--ink-500);
}

.scene-stack-list {
  border-top: 1px solid var(--line-strong);
}

.scene-stack {
  grid-template-columns: minmax(330px, 0.84fr) minmax(0, 1.16fr);
  column-gap: 52px;
  padding: 52px 0;
}

.scene-stack__diagram {
  grid-row: 1 / 5;
  align-self: start;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
}

.scene-diagram {
  width: 100%;
  min-height: 150px;
}

.scene-diagram__axis,
.scene-diagram__arrow,
.scene-diagram__node path {
  fill: none;
  stroke: var(--line-strong);
  stroke-width: 2;
}

.scene-diagram__arrow {
  stroke: var(--blue-600);
}

.scene-diagram__node circle {
  fill: var(--paper);
  stroke: var(--blue-600);
  stroke-width: 2;
}

.scene-diagram__node path {
  stroke: var(--blue-600);
  stroke-width: 1.5;
}

.scene-diagram__node text {
  fill: var(--ink-650);
  font-family: var(--font-body);
  font-size: 13px;
}

.scene-stack__intro h2 {
  font-size: 30px;
}

.research-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  border: 0;
}

.research-row,
.research-row--text {
  display: block;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--paper);
}

.research-row__heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.research-row h2 {
  margin-top: 18px;
  font-size: 22px;
}

.research-row dl div {
  grid-template-columns: 78px minmax(0, 1fr);
}

.scene-reference-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line);
}

.scene-reference-links a {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 0;
  text-decoration: none;
}

.scene-reference-links a + a {
  padding-left: 28px;
  border-left: 1px solid var(--line);
}

.scene-reference-links span {
  color: var(--blue-700);
  font-size: 13px;
  font-weight: 700;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 28px;
  color: var(--ink-500);
  font-size: 12px;
}

.breadcrumb a {
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--blue-700);
}

.download-list {
  border-top: 1px solid var(--line-strong);
}

.download-row {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) auto;
  align-items: center;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.download-row__index {
  color: var(--blue-700);
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 800;
}

.download-row h3,
.download-row p {
  margin: 0;
}

.download-row h3 {
  margin-top: 6px;
  font-size: 19px;
}

.download-row p {
  margin-top: 5px;
  color: var(--ink-650);
  font-size: 13px;
}

.download-row__actions {
  display: flex;
  gap: 8px;
}

.site-footer {
  border-top: 0;
  background: #020617;
}

.site-footer__inner {
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  align-items: start;
  gap: 48px;
  min-height: 0;
  padding: 48px 0 22px;
}

.site-footer__brand strong {
  font-size: 16px;
}

.site-footer__brand p {
  max-width: 560px;
  margin: 18px 0 0;
  color: #94a3b8;
  font-size: 13px;
}

.site-footer__links > strong {
  color: var(--paper);
  font-size: 13px;
}

.site-footer__nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 20px;
  margin-top: 14px;
}

.site-footer__legal {
  grid-column: 1 / -1;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #64748b;
}

@media (max-width: 1040px) {
  .home-hero__grid {
    grid-template-columns: 1fr 420px;
    gap: 42px;
  }

  .home-hero__copy h1 {
    font-size: 44px;
  }

  .resource-type-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .resource-type-entry:nth-child(2) {
    border-right: 0;
  }

  .resource-type-entry:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .research-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  :root {
    --header-height: 64px;
  }

  .site-header__inner {
    padding: 0 18px;
  }

  .brand img {
    width: 34px;
    height: 34px;
  }

  .site-nav {
    top: var(--header-height);
    padding-right: 18px;
    padding-left: 18px;
  }

  .content-frame,
  .section-inner,
  .metric-toolbar__inner,
  .site-footer__inner {
    width: min(calc(100% - 36px), var(--content-max));
  }

  .home-hero__grid,
  .tool-guidance {
    grid-template-columns: 1fr;
  }

  .home-hero__grid {
    gap: 34px;
    padding: 54px 0;
  }

  .home-system-map {
    max-width: 620px;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .focus-list,
  .engineering-branches,
  .tool-catalog {
    grid-template-columns: 1fr;
  }

  .learning-route__linear {
    grid-template-columns: 1fr;
  }

  .learning-route__linear .learning-route__arrow {
    min-height: 32px;
  }

  .learning-route__linear .learning-route__arrow {
    font-size: 0;
  }

  .learning-route__linear .learning-route__arrow::after {
    font-size: 18px;
    content: "↓";
  }

  .learning-start {
    grid-template-columns: 1fr;
  }

  .learning-recommendations {
    grid-column: auto;
  }

  .tool-guidance ol {
    grid-template-columns: 1fr;
  }

  .tool-guidance li,
  .tool-guidance li:first-child {
    grid-template-columns: 34px 120px minmax(0, 1fr);
    align-items: baseline;
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
    border-left: 0;
  }

  .scene-stack {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .scene-stack__diagram {
    grid-row: auto;
  }

  .resource-hub {
    grid-template-columns: 42px minmax(0, 1fr);
  }

  .resource-hub .button-group {
    grid-column: 2;
  }

  .download-row {
    grid-template-columns: 38px minmax(0, 1fr);
  }

  .download-row__actions {
    grid-column: 2;
  }

  .site-footer__inner {
    grid-template-columns: 1fr;
  }

  .site-footer__legal {
    grid-column: auto;
  }
}

@media (max-width: 560px) {
  .content-frame,
  .section-inner,
  .metric-toolbar__inner,
  .site-footer__inner {
    width: min(calc(100% - 32px), var(--content-max));
  }

  .home-hero__grid {
    padding: 44px 0 38px;
  }

  .home-hero__copy h1 {
    font-size: 38px;
    line-height: 1.16;
  }

  .home-system-map {
    padding: 16px 18px;
  }

  .page-intro {
    padding: 46px 0 34px;
  }

  .page-intro h1 {
    font-size: 36px;
  }

  .section-inner {
    padding: 48px 0;
  }

  .section-heading h2,
  .section-inner > h2,
  .training-callout h2,
  .editorial-grid h2,
  .mission-layout h2,
  .business-grid h2,
  .practice-layout h2,
  .contact-band h2,
  .tool-guidance h2,
  .resource-repository h2 {
    font-size: 29px;
  }

  .knowledge-search {
    align-items: stretch;
    flex-direction: column;
  }

  .quick-topics > span {
    flex-basis: 100%;
  }

  .resource-gallery,
  .open-project-grid,
  .resource-type-list {
    grid-template-columns: 1fr;
  }

  .resource-type-entry,
  .resource-type-entry:nth-child(2),
  .resource-type-entry:last-child {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .resource-type-entry:last-child {
    border-bottom: 0;
  }

  .learning-node {
    padding: 20px;
  }

  .learning-node__head {
    grid-template-columns: 38px auto minmax(0, 1fr);
  }

  .learning-node dl div,
  .engineering-branch dl div {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .learning-profile-tabs {
    border-radius: var(--radius-sm);
  }

  .engineering-branch {
    grid-template-columns: 38px minmax(0, 1fr);
    padding: 18px;
  }

  .home-final__inner,
  .contact-band,
  .training-callout,
  .resource-repository {
    align-items: flex-start;
    flex-direction: column;
  }

  .home-final__inner .button-group,
  .contact-band .button,
  .training-callout .button,
  .resource-repository .button {
    width: 100%;
  }

  .scene-reference-links {
    grid-template-columns: 1fr;
  }

  .scene-reference-links a + a {
    padding-left: 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .resource-hub {
    grid-template-columns: 1fr;
  }

  .resource-hub .button-group {
    grid-column: auto;
    align-items: flex-start;
    flex-direction: column;
  }

  .download-row {
    grid-template-columns: 30px minmax(0, 1fr);
    gap: 12px;
  }

  .download-row__actions {
    align-items: stretch;
    flex-direction: column;
  }

  .download-row__actions .button {
    width: 100%;
  }

  .site-footer__nav {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

/* RC.4_V2: production-site structure with RC4 content and interactions. */
:root {
  --radius-sm: 24px;
  --radius-md: 30px;
  --shadow-float: 0 24px 64px rgba(15, 23, 42, 0.12);
}

body {
  background: #f1f5f9;
}

.heritage-site-header {
  min-height: 80px;
  border-bottom: 1px solid #e2e8f0;
  background: #fff;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.06);
  backdrop-filter: none;
}

.heritage-site-header .site-header__inner {
  min-height: 80px;
  padding-right: 32px;
  padding-left: 32px;
}

.heritage-site-header .brand {
  gap: 12px;
}

.heritage-site-header .brand img {
  width: 150px;
  height: auto;
  object-fit: contain;
}

.heritage-site-header .brand__copy {
  gap: 2px;
}

.heritage-site-header .brand__copy small {
  order: -1;
  color: #94a3b8;
  font-size: 11px;
  font-weight: 600;
}

.heritage-site-header .brand__copy strong {
  font-size: 14px;
  font-weight: 800;
}

.heritage-site-header .site-nav a {
  padding: 8px 0;
  color: #171716;
  font-size: 14px;
  font-weight: 400;
}

.heritage-site-header .site-nav a[aria-current="page"]::after {
  right: 0;
  left: 0;
  height: 1px;
}

.site-login-link {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  gap: 7px;
  padding: 10px 16px;
  border: 0;
  border-radius: 999px;
  background: #fff;
  color: #171716;
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
}

.site-login-link svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
}

.site-login-link:hover {
  border-color: #bfdbfe;
  color: #2563eb;
}

.heritage-site-header #dashboardEntry {
  min-height: 42px;
  padding: 10px 18px;
  border-radius: 999px;
  background: #171716;
  font-size: 13px;
}

.home-hero,
.heritage-hero {
  position: relative;
  width: 100%;
  max-width: none;
  padding: 0;
  overflow: hidden;
  background: #020617;
  color: #fff;
}

.home-hero__grid,
.heritage-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(390px, 0.95fr);
  align-items: center;
  gap: 56px;
  min-height: 460px;
  padding-top: 64px;
  padding-bottom: 64px;
}

.home-hero__copy .section-label,
.heritage-hero .section-label {
  color: #93c5fd;
}

.home-hero__copy h1,
.heritage-hero h1 {
  max-width: 800px;
  margin: 0;
  color: #fff;
  font-size: 56px;
  font-weight: 900;
  line-height: 1.08;
}

.home-hero__copy > p:not(.section-label),
.heritage-hero__copy > p:not(.section-label) {
  max-width: 760px;
  margin: 22px 0 0;
  color: #cbd5e1;
  font-size: 18px;
  line-height: 1.78;
}

.home-hero .button--primary,
.heritage-hero .button--primary {
  border-color: #fff;
  background: #fff;
  color: #0f172a;
}

.home-hero .button--primary:hover,
.heritage-hero .button--primary:hover {
  border-color: #eff6ff;
  background: #eff6ff;
}

.home-hero .button--secondary,
.heritage-hero .button--secondary {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
}

.home-hero .text-link,
.heritage-hero .text-link {
  color: #bfdbfe;
}

.home-system-map,
.heritage-hero__scope,
.heritage-hero__counts {
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 34px;
  background: rgba(255, 255, 255, 0.055);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.22);
}

.home-system-map__title {
  margin: 0 0 10px;
  color: #94a3b8;
  font-size: 12px;
  font-weight: 700;
}

.home-system-map__node {
  min-height: 92px;
  padding: 13px 8px;
  color: #fff;
}

.home-system-map__node:hover {
  color: #bfdbfe;
}

.home-system-map__node:hover strong {
  color: #bfdbfe;
}

.home-system-map__icon {
  border-color: rgba(147, 197, 253, 0.28);
  background: rgba(59, 130, 246, 0.12);
  color: #bfdbfe;
}

.home-system-map__node small {
  color: #94a3b8;
}

.home-system-map__connector {
  background: rgba(255, 255, 255, 0.16);
}

.heritage-hero__scope {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.heritage-hero__scope > div {
  min-height: 116px;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.04);
}

.heritage-hero__scope strong,
.heritage-hero__scope span {
  display: block;
}

.heritage-hero__scope strong {
  color: #fff;
  font-size: 15px;
}

.heritage-hero__scope span {
  margin-top: 9px;
  color: #cbd5e1;
  font-size: 13px;
  line-height: 1.65;
}

.heritage-hero__counts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.heritage-hero__counts > div {
  min-width: 0;
  padding: 20px 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.04);
}

.heritage-hero__counts strong,
.heritage-hero__counts span {
  display: block;
}

.heritage-hero__counts strong {
  color: #fff;
  font-size: 30px;
  line-height: 1;
}

.heritage-hero__counts span {
  margin-top: 10px;
  color: #94a3b8;
  font-size: 12px;
}

.heritage-hero .breadcrumb {
  margin-bottom: 24px;
  color: #94a3b8;
}

.heritage-hero .breadcrumb a:hover {
  color: #fff;
}

.metric-toolbar {
  padding: 0 32px;
  background: #f1f5f9;
}

.metric-toolbar__inner {
  max-width: 1280px;
  border: 0;
  border-radius: 0 0 28px 28px;
  background: #fff;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.06);
}

.metric-item {
  padding: 22px 26px;
}

.section-band,
.home-final {
  border-top: 0;
  background: #fff;
}

.section-band--soft {
  background: #f1f5f9;
}

.section-inner {
  padding-top: 72px;
  padding-bottom: 72px;
}

.section-band--flush .section-inner {
  padding-top: 56px;
}

.section-heading {
  gap: 40px;
  margin-bottom: 34px;
}

.section-heading h2,
.section-inner > h2,
.training-callout h2,
.tool-guidance h2,
.resource-repository h2 {
  font-size: 36px;
  font-weight: 900;
}

.capability-lines {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  border: 0;
}

.capability-lines article,
.capability-lines article + article {
  min-height: 290px;
  padding: 28px;
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: 28px;
  background: #fff;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.07);
}

.capability-lines article > span {
  color: #1d4ed8;
}

.capability-lines h3 {
  margin-top: 22px;
  font-size: 24px;
}

.capability-lines article p {
  min-height: 78px;
  margin-top: 14px;
}

.focus-list {
  gap: 20px;
}

.home-scene,
.resource-card,
.learning-node,
.engineering-branch,
.tool-catalog__item,
.research-row,
.research-row--text,
.learning-start,
.resource-hub,
.scene-stack__diagram {
  border-radius: 28px;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.07);
}

.home-scene__diagram {
  padding: 24px;
}

.home-scene__body {
  padding: 28px;
}

.home-final__inner,
.training-callout,
.resource-repository {
  padding-top: 64px;
  padding-bottom: 64px;
}

.knowledge-search-band {
  position: relative;
  z-index: 2;
  background: #f1f5f9;
}

.knowledge-search-band .section-inner {
  margin-top: -34px;
  padding: 28px 32px 30px;
  border: 1px solid #e2e8f0;
  border-radius: 30px;
  background: #fff;
  box-shadow: 0 24px 64px rgba(15, 23, 42, 0.12);
}

.knowledge-search {
  max-width: none;
}

.knowledge-search input {
  height: 58px;
  border-radius: 18px;
  box-shadow: none;
}

.knowledge-filters {
  max-width: none;
}

.resource-gallery,
.open-project-grid {
  gap: 18px;
}

.resource-card {
  min-height: 278px;
  border: 1px solid #e2e8f0;
}

.resource-card__body {
  padding: 26px;
}

.learning-route__linear {
  gap: 10px;
}

.learning-node {
  padding: 26px;
}

.learning-start {
  padding: 26px;
  background: #fff;
}

.learning-profile-tabs {
  border-radius: 999px;
}

.engineering-branches {
  gap: 18px;
}

.engineering-branch {
  padding: 26px;
}

.resource-type-list {
  gap: 14px;
  border: 0;
}

.resource-type-entry,
.resource-type-entry:last-child,
.resource-type-entry:nth-child(2) {
  min-height: 132px;
  padding: 22px;
  border: 1px solid #e2e8f0;
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.05);
}

.resource-hub {
  padding: 26px;
}

.tool-filter-bar {
  padding: 20px 22px;
  border: 1px solid #e2e8f0;
  border-radius: 24px;
  background: #fff;
}

.tool-catalog {
  gap: 20px;
}

.tool-catalog__item {
  min-height: 390px;
  padding: 28px;
  border: 1px solid #e2e8f0;
}

.tool-guidance ol {
  border: 1px solid #e2e8f0;
  border-radius: 28px;
  background: #fff;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.06);
}

.tool-guidance li {
  padding: 24px;
}

.scene-stack-list {
  display: grid;
  gap: 24px;
  border: 0;
}

.scene-stack {
  grid-template-columns: minmax(340px, 0.84fr) minmax(0, 1.16fr);
  column-gap: 46px;
  padding: 34px;
  border: 1px solid #e2e8f0;
  border-radius: 34px;
  background: #fff;
  box-shadow: 0 24px 64px rgba(15, 23, 42, 0.08);
}

.scene-stack + .scene-stack {
  border-top: 1px solid #e2e8f0;
}

.scene-stack__diagram {
  padding: 22px;
  background: #f8fafc;
}

.scene-stack__intro h2 {
  font-size: 32px;
}

.research-list {
  gap: 20px;
}

.research-row,
.research-row--text {
  min-height: 360px;
  padding: 28px;
  border: 1px solid #e2e8f0;
}

.scene-reference-links {
  gap: 16px;
  border: 0;
}

.scene-reference-links a,
.scene-reference-links a + a {
  padding: 24px;
  border: 1px solid #e2e8f0;
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.05);
}

.download-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  border: 0;
}

.download-row {
  grid-template-columns: 42px minmax(0, 1fr);
  align-content: start;
  padding: 28px;
  border: 1px solid #e2e8f0;
  border-radius: 30px;
  background: #fff;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.07);
}

.download-row__actions {
  grid-column: 2;
  margin-top: 14px;
}

.site-footer--full {
  background: #020617;
}

.site-footer--full .site-footer__inner {
  padding-top: 48px;
  padding-bottom: 20px;
}

.site-footer__brand-lockup {
  display: flex;
  align-items: center;
  gap: 14px;
}

.site-footer__brand-lockup img {
  width: 150px;
  height: auto;
  filter: brightness(0) invert(1);
  object-fit: contain;
}

.site-footer__brand-lockup span {
  display: grid;
  gap: 3px;
}

.site-footer__brand-lockup small {
  color: #64748b;
  font-size: 11px;
}

.site-footer__contact {
  display: grid;
  gap: 5px;
  margin-top: 18px;
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.05);
  color: #94a3b8;
  font-size: 13px;
}

.site-footer__contact strong {
  color: #fff;
}

.site-footer--compact {
  border-top: 1px solid #e2e8f0;
  background: #fff;
  color: #64748b;
}

.site-footer__compact-inner {
  display: flex;
  max-width: 1280px;
  min-height: 96px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin: 0 auto;
  padding: 24px 32px;
  font-size: 13px;
}

.site-footer__compact-inner nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.site-footer__compact-inner a {
  text-decoration: none;
}

.site-footer__compact-inner a:hover {
  color: #0f172a;
}

@media (max-width: 1040px) {
  .heritage-site-header .site-header__inner {
    padding-right: 24px;
    padding-left: 24px;
  }

  .home-hero__grid,
  .heritage-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(340px, 0.78fr);
    gap: 36px;
  }

  .home-hero__copy h1,
  .heritage-hero h1 {
    font-size: 48px;
  }

  .capability-lines {
    gap: 14px;
  }

  .capability-lines article,
  .capability-lines article + article {
    padding: 24px;
  }
}

@media (max-width: 820px) {
  .heritage-site-header,
  .heritage-site-header .site-header__inner {
    min-height: 64px;
  }

  .heritage-site-header .site-header__inner {
    padding-right: 18px;
    padding-left: 18px;
  }

  .heritage-site-header .brand img {
    width: 70px;
    height: 34px;
  }

  .heritage-site-header .site-nav {
    top: 64px;
    height: auto;
  }

  .heritage-site-header .site-nav a {
    min-height: 48px;
  }

  .site-login-link span {
    display: none;
  }

  .site-login-link {
    width: 38px;
    min-height: 38px;
    justify-content: center;
    padding: 0;
  }

  .home-hero__grid,
  .heritage-hero__grid {
    grid-template-columns: 1fr;
    gap: 32px;
    min-height: 0;
    padding-top: 56px;
    padding-bottom: 56px;
  }

  .home-hero__copy h1,
  .heritage-hero h1 {
    max-width: 700px;
    font-size: 44px;
  }

  .home-system-map,
  .heritage-hero__scope,
  .heritage-hero__counts {
    max-width: none;
  }

  .metric-toolbar {
    padding: 0 18px;
  }

  .capability-lines {
    grid-template-columns: 1fr;
  }

  .capability-lines article,
  .capability-lines article + article {
    min-height: 0;
  }

  .capability-lines article p {
    min-height: 0;
  }

  .knowledge-search-band .section-inner {
    width: min(calc(100% - 36px), var(--content-max));
    padding: 24px;
  }

  .scene-stack {
    grid-template-columns: 1fr;
    padding: 26px;
  }

  .download-list {
    grid-template-columns: 1fr;
  }

  .site-footer__compact-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 28px 18px;
  }
}

@media (max-width: 560px) {
  .heritage-site-header .brand__copy {
    display: none;
  }

  .heritage-site-header #dashboardEntry {
    width: 42px;
    padding: 0;
  }

  .heritage-site-header #dashboardEntry span {
    display: none;
  }

  .home-hero__grid,
  .heritage-hero__grid {
    padding-top: 44px;
    padding-bottom: 44px;
  }

  .home-hero__copy h1,
  .heritage-hero h1 {
    font-size: 38px;
    line-height: 1.14;
  }

  .home-hero__copy > p:not(.section-label),
  .heritage-hero__copy > p:not(.section-label) {
    font-size: 16px;
    line-height: 1.75;
  }

  .heritage-hero__scope,
  .heritage-hero__counts {
    grid-template-columns: 1fr;
    padding: 16px;
    border-radius: 26px;
  }

  .heritage-hero__scope > div {
    min-height: 0;
    padding: 16px;
    border-radius: 20px;
  }

  .heritage-hero__counts > div {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    padding: 15px 16px;
    border-radius: 20px;
  }

  .heritage-hero__counts span {
    margin-top: 0;
  }

  .metric-toolbar {
    padding: 0 16px;
  }

  .metric-toolbar__inner {
    width: 100%;
  }

  .section-inner {
    padding-top: 54px;
    padding-bottom: 54px;
  }

  .section-heading h2,
  .section-inner > h2,
  .training-callout h2,
  .tool-guidance h2,
  .resource-repository h2 {
    font-size: 30px;
  }

  .capability-lines article,
  .capability-lines article + article,
  .resource-card__body,
  .learning-node,
  .engineering-branch,
  .tool-catalog__item,
  .research-row,
  .research-row--text,
  .download-row {
    padding: 22px;
  }

  .knowledge-search-band .section-inner {
    width: calc(100% - 32px);
    margin-top: -24px;
    padding: 20px;
    border-radius: 24px;
  }

  .resource-type-entry,
  .resource-type-entry:last-child,
  .resource-type-entry:nth-child(2) {
    border-radius: 22px;
  }

  .scene-stack {
    padding: 20px;
    border-radius: 28px;
  }

  .site-footer__brand-lockup img {
    width: 72px;
    height: 34px;
  }
}

/* 2026-07 mobile density pass for the course decision page. */
@media (max-width: 560px) {
  .courses-page .heritage-hero {
    padding-top: 88px;
    padding-bottom: 44px;
  }

  .courses-page .heritage-hero__grid {
    gap: 24px;
    padding-top: 0;
    padding-bottom: 0;
  }

  .courses-page .heritage-hero h1 {
    font-size: 34px;
    line-height: 1.12;
  }

  .courses-page .heritage-hero__copy > p:not(.section-label) {
    margin-top: 18px;
    font-size: 14px;
    line-height: 1.7;
  }

  .courses-page .heritage-hero__scope {
    grid-template-columns: 1fr;
    gap: 0;
    padding: 0;
    border-radius: 0;
  }

  .courses-page .heritage-hero__scope > div {
    min-height: 0;
    padding: 16px 0;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, .14);
    border-radius: 0;
  }

  .courses-page .heritage-hero__scope > div:last-child {
    border-bottom: 0;
  }

  .courses-page .section-band {
    padding-top: 60px;
    padding-bottom: 68px;
  }

  .courses-page .course-open-foundation,
  .courses-page .course-row {
    padding: 20px 0;
  }
}