/* Design system: shared tokens, foundations, components and responsive behavior.
 * Loaded before human-first.css, which defines the editorial compositions. */
:root {
  /* Palette */
  --paper: #f2eee6;
  --ink: #292b26;
  --red: #b93422;
  --line: #cec9be;
  --green-950: var(--ink);
  --green-900: var(--ink);
  --green-600: #68685f;
  --green-200: #e5e0d5;
  --stone-50: var(--paper);
  --white: #faf8f3;
  --gold-200: #edc9a4;

  /* Semantic color roles */
  --color-page: var(--stone-50);
  --color-surface: var(--white);
  --color-text: var(--green-900);
  --color-muted: var(--green-600);
  --color-inverse: var(--stone-50);
  --color-deep: var(--green-950);
  --color-accent: var(--red);
  --color-accent-hover: #932819;
  --color-tint: var(--green-200);
  --color-highlight: var(--gold-200);
  --color-border: var(--line);
  --color-inverse-muted: #d3d0c6;
  --color-row-hover: #e9e4da;
  --color-inverse-border: #ffffff65;

  /* Typography */
  --font-body: 'DM Sans', sans-serif;
  --font-display: 'DM Serif Display', Georgia, serif;
  --text-micro: 8px;
  --text-caption: 10px;
  --text-small: 11px;
  --text-label: 12px;
  --text-control: 13px;
  --text-support: 14px;
  --text-deck: 15px;
  --text-body: 16px;

  /* Layout and spacing */
  --frame: clamp(22px,4.3vw,88px);
  --shell: min(1560px,calc(100% - var(--frame)*2));
  --header-height: 96px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-7: 28px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;

  /* Controls and motion */
  --radius-control: 0;
  --duration-fast: .2s;
  --duration-hover: .25s;
  --motion-ease: cubic-bezier(.22,1,.36,1);
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 72px);
}
body {
  margin: 0;
  background: var(--color-page);
  color: var(--color-text);
  font: 400 17px/1.7 var(--font-body);
  -webkit-font-smoothing: antialiased;
}
body.menu-open {
  overflow: hidden;
}
a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 5px;
}
button,input,select,textarea {
  font: inherit;
}
button {
  cursor: pointer;
}
button,a,input,textarea,select,summary {
  -webkit-tap-highlight-color: transparent;
}
:focus-visible {
  outline: 3px solid var(--color-text);
  outline-offset: 5px;
}
img,svg {
  display: block;
  max-width: 100%;
}
p,h1,h2,h3,h4 {
  margin: 0;
}
p {
  max-width: 65ch;
}
h1,h2,h3,h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -.035em;
  text-wrap: balance;
}
h1 {
  font-size: clamp(2.5rem,4.6vw,5.5rem);
}
h2 {
  font-size: clamp(2rem,3.4vw,3.8rem);
}
h3 {
  font-size: clamp(1.5rem,2vw,2.25rem);
}
.shell {
  width: var(--shell);
  margin-inline: auto;
}
[hidden] {
  display: none !important;
}
.skip {
  position: fixed;
  inset: -100px auto auto var(--space-5);
  z-index: 300;
  padding: var(--space-3) 22px;
  background: var(--color-highlight);
}
.skip:focus {
  top: 10px;
}
.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 80;
  background: var(--color-accent);
  color: var(--color-inverse);
}
.nav-inner {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  gap: 34px;
}
.site-logo {
  display: flex;
  gap: var(--space-3);
  align-items: center;
  text-decoration: none;
  font-size: var(--text-deck);
  font-weight: 600;
  max-width: 260px;
  line-height: 1.25;
}
.logo-symbol {
  width: 44px;
  height: 44px;
  flex: 0 0 44px;
}
.desktop-menu {
  margin-inline-start: auto;
  display: flex;
  gap: var(--space-8);
}
.desktop-menu a {
  font-size: var(--text-support);
  font-weight: 500;
  text-decoration: none;
}
.desktop-menu a:hover {
  text-decoration: underline;
}
.site-header :is(.nav-contact,.mobile-cta) {
  background: var(--color-highlight);
  color: var(--color-deep);
}
.site-header :is(.nav-contact,.mobile-cta):hover {
  background: var(--color-page);
}
.site-header :focus-visible {
  outline-color: var(--color-highlight);
}
.button,.nav-contact,.inner-next,.toc-cta,.mobile-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
  padding: 15px 25px;
  background: var(--color-accent);
  color: var(--color-inverse);
  text-decoration: none;
  border: 0;
  border-radius: var(--radius-control);
  font: 600 14px/1.4 var(--font-body);
  min-height: 50px;
  transition: background var(--duration-fast),transform var(--duration-fast);
}
.button:hover,.nav-contact:hover,.inner-next:hover,.toc-cta:hover {
  background: var(--color-accent-hover);
}
.button:active,.nav-contact:active {
  transform: translateY(1px);
}
.button-quiet {
  background: transparent;
  color: inherit;
  padding-inline: 0;
  text-decoration: underline;
}
.button-quiet:hover {
  background: transparent;
}
.button-light {
  background: var(--color-highlight);
  color: var(--color-deep);
}
.button-light:hover {
  background: var(--color-page);
}
.nav-contact {
  margin-inline-start: var(--space-3);
  padding-inline: var(--space-5);
  font-size: var(--text-control);
}
.nav-toggle {
  display: none;
  width: 48px;
  height: 48px;
  border: 0;
  background: var(--color-tint);
  margin-inline-start: auto;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--color-text);
}
.nav-toggle[aria-expanded=true] span:first-child {
  transform: translateY(4px) rotate(45deg);
}
.nav-toggle[aria-expanded=true] span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}
.mobile-menu {
  display: none;
  position: absolute;
  inset: 100% 0 auto;
  padding: var(--space-5) var(--frame) 30px;
  background: var(--color-accent);
  color: var(--color-inverse);
}
.mobile-menu > a {
  display: block;
  padding: var(--space-3) 0;
  text-decoration: none;
  font-size: 18px;
}
.mobile-menu .mobile-cta {
  display: inline-flex;
  padding: 14px 22px;
  margin-top: 18px;
  font-size: var(--text-support);
}
/* Homepage: copy and a wide garden view, followed by editorial fields. */

.tour-hero__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 76% center;
}

.tour-hero h1 {
  font-size: clamp(2.7rem,4.3vw,5rem);
  margin-bottom: 30px;
}
.hero-deck {
  font-size: 18px;
  line-height: 1.65;
}
.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4) 26px;
  margin-top: var(--space-8);
  align-items: center;
}
.tour-hero .button-primary {
  background: var(--color-highlight);
  color: var(--color-deep);
}
.hero-review-note {
  font-size: var(--text-support);
  margin-top: 25px;
  opacity: .85;
}
.eyebrow,.hero-kicker,.card-type,.glow-dot {
  display: none;
}
/* Guide, case study and utility openings are deliberately different structures. */
.chapter-hero {
  padding-block: 54px 68px;
}
.chapter-hero__copy h1 {
  margin-bottom: var(--space-7);
}
.chapter-hero__copy .hero-deck {
  max-width: 52ch;
}
.chapter-hero__copy .inner-next {
  margin-top: var(--space-7);
}
.chapter-hero__media {
  overflow: hidden;
  background: var(--color-tint);
}
.chapter-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page--guide .chapter-opening {
  display: grid;
  gap: 44px;
}

.page--guide .chapter-hero__copy .inner-next {
  justify-self: start;
}

.page--guide .chapter-hero__media img {
  object-position: 65% 57%;
}
.page--case .chapter-hero {
  background: var(--color-tint);
  padding-block: 36px;
}
.page--case .chapter-opening {
  display: grid;
  grid-template-columns: minmax(0,1.25fr) minmax(0,1fr);
  gap: 8%;
  align-items: center;
}

.page--case .chapter-hero__copy h1 {
  font-size: clamp(2.5rem,4vw,4.6rem);
}

.page--case .chapter-hero__media img {
  object-position: 68% center;
}
.page--utility .chapter-opening {
  display: grid;
  grid-template-columns: minmax(0,1fr) minmax(0,1.15fr);
  gap: 10%;
  align-items: center;
}

.page--utility .chapter-hero__media img {
  object-position: 67% center;
}
.page--index .chapter-hero {
  padding-block: var(--space-12) 0;
}
.page--index .chapter-opening {
  display: grid;
  grid-template-columns: minmax(0,1.25fr) minmax(0,1fr);
  gap: 6%;
  align-items: center;
}

.page--index .chapter-hero__copy h1 {
  font-size: clamp(2.7rem,4.4vw,5rem);
}
/* Library and services: spacious photographic rows rather than cards. */
.section {
  padding-block: clamp(70px,7vw,115px);
}
.section-alt {
  background: var(--color-surface);
}
.section-intro {
  display: grid;
  grid-template-columns: minmax(0,1.2fr) minmax(0,1fr);
  gap: 8%;
  align-items: end;
  margin-bottom: 50px;
}
.section-intro h2 {
  max-width: 22ch;
}
.section-intro > p {
  margin-top: var(--space-6);
}
.resource-grid {
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: 60px 44px;
}
.resource-card {
  position: relative;
  min-width: 0;
}
.resource-card :is(.evidence-photo,.resource-photo) {
  width: 100%;
  height: auto;
  aspect-ratio: 1.8;
  object-fit: cover;
  margin-bottom: var(--space-6);
}
.resource-card h3 {
  margin-bottom: 18px;
  max-width: 28ch;
}
.resource-card h3 a {
  text-decoration: none;
}
.resource-card h3 a:hover {
  text-decoration: underline;
}
.resource-card > p {
  color: var(--color-muted);
  font-size: var(--text-body);
}
.card-arrow {
  display: inline-block;
  margin-top: 18px;
  font-size: 26px;
}
.card-num {
  font: 500 64px/1.1 var(--font-display);
  color: var(--color-text) !important;
  margin-bottom: var(--space-5);
  font-variant-numeric: tabular-nums;
}
.card-strap {
  margin-top: 18px;
}
.page--home #case-studies,.page--index #case-studies {
  background: var(--color-tint);
}
.page--home #case-studies .resource-grid,.page--index #case-studies .resource-grid {
  grid-template-columns: repeat(3,minmax(0,1fr));
  gap: var(--space-8);
}
.page--home #case-studies .resource-card h3,.page--index #case-studies .resource-card h3 {
  font-size: 27px;
}
/* Chapter catalogue and the reading room. */
.folio-acts {
  padding-block: var(--space-12);
  background: var(--color-tint);
}
.folio-acts .shell {
  display: grid;
  grid-template-columns: minmax(0,1fr) minmax(0,2fr);
  gap: 10%;
}
.folio-acts h2 {
  font-size: 28px;
  max-width: 16ch;
}
.folio-acts ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: 14px 30px;
}
.folio-acts a {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  font-size: var(--text-support);
  text-decoration: none;
}
.folio-acts a:hover {
  text-decoration: underline;
}
.article-layout {
  display: block;
}
.article-toc {
  position: sticky;
  top: var(--header-height);
  z-index: 50;
  background: var(--color-tint);
  margin-bottom: 54px;
}
.article-toc summary {
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  padding: 18px 26px;
  font-weight: 600;
  font-size: var(--text-deck);
  list-style: none;
}
.article-toc summary::-webkit-details-marker {
  display: none;
}
.article-toc summary span {
  font-size: 23px;
  line-height: 1;
}
.article-toc[open] summary span {
  transform: rotate(45deg);
}
.reading-menu {
  padding: 0 26px var(--space-6);
  max-height: 55svh;
  overflow: auto;
}
.reading-menu > :is(p,h2,h3) {
  display: none;
}

.reading-menu nav {
  display: block;
  grid-template-columns: repeat(3,minmax(0,1fr));
  gap: 14px var(--space-7);
  margin-bottom: var(--space-5);
}
.reading-menu nav a {
  font-size: var(--text-support);
  text-decoration: none;
}
.reading-menu nav a.active,.reading-menu nav a[aria-current] {
  text-decoration: underline;
  font-weight: 700;
}
.editorial {
  max-width: 840px;
  margin-inline: auto;
  font-size: 18px;
  line-height: 1.85;
}
.editorial > :first-child {
  margin-top: 0;
}
.editorial :is(h2,h3) {
  scroll-margin-top: calc(var(--header-height) + 90px);
}
.editorial h2 {
  font-size: clamp(1.9rem,3vw,3rem);
  margin: 2.2em 0 .7em;
}
.editorial h3 {
  font-size: 1.65rem;
  margin: 1.7em 0 .65em;
}
.editorial p {
  margin-bottom: 1.4em;
}
.editorial ul,.editorial ol {
  padding-inline-start: 25px;
  margin-block: var(--space-6);
}
.editorial li {
  margin-block: 10px;
}
.editorial strong {
  font-weight: 700;
}
.editorial a {
  font-weight: 600;
}
.table-scroll {
  overflow-x: auto;
  margin-block: var(--space-8);
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-deck);
  line-height: 1.6;
}
th,td {
  padding: var(--space-5);
  text-align: start;
  vertical-align: top;
  border-bottom: 1px solid var(--color-tint);
}
th {
  background: var(--color-tint);
  font-weight: 600;
}
/* Home story, next action and contact. */
.craft-scene {
  padding-block: 100px;
  background: var(--color-deep);
  color: var(--color-inverse);
}
.craft-plate {
  display: none;
}
.craft-scene .shell {
  max-width: 1100px;
}
.craft-scene h2 {
  max-width: 20ch;
  margin-bottom: var(--space-7);
}
.craft-scene p {
  margin-bottom: var(--space-6);
}
.craft-scene :is(ol,ul) {
  padding: 0;
  list-style: none;
  margin-top: var(--space-10);
}
.craft-scene li {
  margin-block: var(--space-6);
}
.craft-scene a {
  color: var(--color-inverse);
}
.bottom-cta {
  padding-block: 76px;
  background: var(--color-deep);
  color: var(--color-inverse);
}
.cta-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 50px;
}
.cta-inner h2 {
  margin-bottom: var(--space-5);
}
.cta-inner > div {
  max-width: 800px;
}
.cta-inner .button {
  flex-shrink: 0;
}
.form-wrap {
  max-width: 1000px;
  padding: clamp(var(--space-6),5vw,70px);
  background: var(--color-tint);
  margin-inline: auto;
}
.form-wrap .section-intro {
  display: block;
}
.form-grid {
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: var(--space-7);
}
.field {
  display: flex;
  flex-direction: column;
  gap: 9px;
  min-width: 0;
}
.field label {
  font-weight: 600;
  font-size: var(--text-support);
}
.field input,.field textarea,.field select {
  width: 100%;
  border: 1px solid var(--color-muted);
  border-radius: 0;
  background: var(--color-surface);
  padding: 15px;
  color: var(--color-text);
}
.field textarea {
  min-height: 160px;
  resize: vertical;
}
.span-2 {
  grid-column: 1/-1;
}
.form-note {
  font-size: var(--text-control);
  margin-block: var(--space-6);
}
.form-note p {
  margin-block: var(--space-3);
}
.form-honeypot {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
}
.form-consent {
  display: flex;
  gap: var(--space-3);
  align-items: start;
  font-size: var(--text-support);
  margin-bottom: var(--space-6);
}
.form-consent input {
  width: 20px;
  height: 20px;
  flex: 0 0 20px;
}
#contact-state {
  margin-top: var(--space-6);
  font-weight: 600;
}
.site-footer {
  padding-block: 70px 25px;
  background: var(--color-deep);
  color: var(--color-inverse);
}
.foot-columns {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 70px;
  padding-bottom: 65px;
}
.foot-logo {
  font: 500 clamp(2rem,4vw,4.2rem)/1.1 var(--font-display);
  max-width: 16ch;
  margin-bottom: var(--space-7);
}
.foot-columns > div > p:nth-child(2) {
  max-width: 34ch;
  font-size: var(--text-deck);
}
.foot-columns nav {
  display: flex;
  flex-direction: column;
  gap: 15px;
  align-items: start;
  font-size: var(--text-deck);
}
.foot-columns nav a {
  text-decoration: none;
}
.foot-columns nav a:hover {
  text-decoration: underline;
}
.foot-bottom {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: baseline;
  gap: var(--space-3) var(--space-6);
  font-size: var(--text-control);
}
.foot-tagline {
  text-align: center;
}
.foot-credit {
  text-align: end;
  overflow-wrap: anywhere;
}
.back-top {
  position: fixed;
  inset: auto var(--space-5) var(--space-5) auto;
  z-index: 90;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: var(--color-highlight);
  color: var(--color-deep);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-fast);
}
.back-top.visible {
  opacity: 1;
  pointer-events: auto;
}
.back-top .progress {
  display: none;
}
.back-top .arrow {
  width: 22px;
  height: 22px;
}
.reading-progress {
  position: fixed;
  inset: 0 0 auto;
  height: 3px;
  z-index: 200;
  background: var(--color-highlight);
  transform: scaleX(var(--reading-progress,0));
  transform-origin: left;
  pointer-events: none;
}
.breadcrumbs {
  padding-block: var(--space-3);
  font-size: var(--text-support);
}
@media (max-width: 1120px) {
  .mobile-menu:not([hidden]) {
    display: block;
  }
  :root:not(.has-mobile-menu) .site-header,
  :root:not(.has-mobile-menu) .mobile-menu {
    position: static;
  }
  .desktop-menu,.nav-contact {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }

  .page--home #case-studies .resource-grid,.page--index #case-studies .resource-grid {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }
  .case-resource {
    display: grid;
    grid-template-columns: minmax(0,.9fr) minmax(0,1.2fr);
    gap: 0 35px;
    align-items: start;
  }
  .case-resource > img {
    grid-row: span 4;
  }
  .case-resource .card-num {
    font-size: 48px;
  }
  .case-resource h3 {
    font-size: 27px;
  }
  .case-resource .card-arrow {
    display: none;
  }
}
@media (max-width: 760px) {
  :root {
    --header-height: 76px;
  }
  body {
    font-size: var(--text-body);
  }
  .site-logo {
    font-size: var(--text-control);
    max-width: 220px;
  }
  .logo-symbol {
    width: 38px;
    height: 38px;
    flex-basis: 38px;
  }

  .tour-hero h1 {
    font-size: clamp(2.65rem,8vw,4rem);
    max-width: 18ch;
  }

  .chapter-hero {
    padding-block: 34px var(--space-10);
  }

  .page--case .chapter-opening,.page--utility .chapter-opening,.page--index .chapter-opening {
    grid-template-columns: 1fr;
    gap: 34px;
  }
  .page--case .chapter-hero__copy {
    padding: 0;
  }

  .page--case .chapter-hero__copy h1,.page--index .chapter-hero__copy h1,h1 {
    font-size: clamp(2.3rem,7.3vw,3.6rem);
  }
  .section-intro {
    display: block;
  }
  .resource-grid {
    grid-template-columns: 1fr;
    gap: 45px;
  }
  .resource-card h3 {
    max-width: 100%;
  }
  .folio-acts .shell {
    grid-template-columns: 1fr;
    gap: 25px;
  }
  .folio-acts h2 {
    max-width: 100%;
  }
  .folio-acts ol {
    grid-template-columns: 1fr;
  }
  .article-toc {
    margin-bottom: 35px;
  }
  .reading-menu nav {
    grid-template-columns: 1fr;
  }
  .editorial {
    font-size: 17px;
    line-height: 1.8;
  }
  .editorial h2 {
    font-size: 1.9rem;
  }
  .cta-inner {
    flex-direction: column;
    align-items: start;
    gap: 30px;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
  .foot-columns {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-10);
  }
  .foot-columns > div {
    grid-column: 1/-1;
  }
  .foot-bottom {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-3);
  }
  .foot-tagline,.foot-credit {
    text-align: start;
  }
}
@media (max-width: 500px) {
  .case-resource {
    display: block;
  }
  .case-resource .card-num {
    font-size: 52px;
  }

  .hero-buttons {
    align-items: stretch;
    flex-direction: column;
  }
  .hero-buttons a {
    width: 100%;
  }
  .hero-buttons .button-quiet {
    justify-content: start;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,*::before,*::after {
    animation: none !important;
    transition: none !important;
  }
  .chapter-hero__media img,.tour-hero__image img {
    transform: none;
  }
}

/* Hero planes: copy and imagery respond at visibly different scroll rates. */
:is(.tour-hero,.chapter-hero) h1 {
  transform: translate3d(0,calc(var(--hero-p,0) * -30px),0);
}
:is(.hero-text,.chapter-hero__copy) > p {
  transform: translate3d(0,calc(var(--hero-p,0) * -18px),0);
}
:is(.hero-buttons,.chapter-hero__copy > .inner-next,.chapter-hero__copy .button) {
  transform: translate3d(0,calc(var(--hero-p,0) * -8px),0);
  transition: background var(--duration-fast);
}
:is(.tour-hero__image,.chapter-hero__media) img {
  transform: translate3d(0,calc(var(--hero-p,0) * 22px),0) scale(calc(1.04 + var(--hero-p,0) * .06));
}
/* Section entrances are progressive: never hide unenhanced content. */
@keyframes reading-enter {
  from {
    opacity: .76;
    transform: translate3d(0,22px,0);
  }
  to {
    opacity: 1;
    transform: translate3d(0,0,0);
  }
}
.animate-on-scroll.is-in-view {
  animation: reading-enter 600ms var(--motion-ease) var(--reveal-delay,0ms) both;
}
/* These tools replace non-informative line drawings. */
.reading-aid {
  margin-block: var(--space-7);
  padding: clamp(22px,3vw,34px);
  background: var(--color-tint);
  color: var(--color-text);
}
.editorial .reading-aid h3 {
  font-size: 1.6rem;
  margin: 0 0 var(--space-4);
}
.editorial .reading-aid p {
  font-size: var(--text-body);
  line-height: 1.7;
  margin: 0 0 18px;
}
.reading-aid__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 18px var(--space-6);
  align-items: center;
}
.reading-aid button,.reader-tools button {
  border: 0;
  border-radius: var(--radius-control);
  padding: 13px 18px;
  min-height: 46px;
  background: var(--color-accent);
  color: var(--color-inverse);
  font-size: var(--text-support);
  font-weight: 600;
}
.reading-aid button:hover,.reader-tools button:hover {
  background: var(--color-accent-hover);
}
.reading-aid button[aria-pressed=true],.reader-tools button[aria-pressed=true] {
  background: var(--color-highlight);
  color: var(--color-deep);
}

.editorial .reading-emphasis {
  background: var(--color-highlight);
  outline: 8px solid var(--color-highlight);
}
.editorial #challenge-passage {
  scroll-margin-top: calc(var(--header-height) + 100px);
}
.reading-aid details {
  padding: 14px 0;
}
.reading-aid summary {
  cursor: pointer;
  font: 600 16px/1.5 var(--font-body);
  padding: 10px 18px 10px 0;
  min-height: 44px;
}
.editorial .reading-aid details p {
  margin: 14px 0 0;
}
.editorial .work-sequence {
  list-style: decimal;
  padding-inline-start: var(--space-6);
  margin: 0;
}
.editorial .work-sequence li {
  margin-block: 0;
  padding-inline-start: 5px;
}
.editorial .work-sequence li::marker {
  color: var(--color-muted);
  font-size: var(--text-deck);
}
.reading-aid__source {
  display: inline-block;
  margin-top: var(--space-5);
}
.reader-tools {
  margin-bottom: var(--space-6);
}
.reading-large .editorial {
  font-size: 21px;
  line-height: 1.85;
}
.reading-large .editorial .reading-aid p {
  font-size: 18px;
}
.reading-route-track {
  position: relative;
}
.reading-route__base,.reading-route__fill {
  position: absolute;
  inset-inline-start: 7px;
  top: var(--route-start,0px);
  width: 3px;
  height: var(--route-length,0px);
  pointer-events: none;
}
.reading-route__base {
  background: var(--color-surface);
}
.reading-route__fill {
  background: var(--color-accent);
  transform: scaleY(var(--route-progress,0));
  transform-origin: top;
}
.reading-menu .reading-route {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.reading-route li {
  margin: 0;
  padding: 0;
}
.reading-route a {
  position: relative;
  display: block;
  padding: 10px 0 10px var(--space-8);
  min-height: 44px;
}
.reading-route a::before {
  content: '';
  position: absolute;
  inset-inline-start: 2px;
  top: calc(50% - 6px);
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--color-surface);
}
.reading-route a[aria-current]::before {
  background: var(--color-accent);
}
.reading-route a[aria-current] {
  font-weight: 700;
  text-decoration: underline;
}
@media (max-width: 760px) {
  :is(.tour-hero,.chapter-hero) h1 {
    transform: translate3d(0,calc(var(--hero-p,0) * -16px),0);
  }
  :is(.hero-text,.chapter-hero__copy) > p {
    transform: translate3d(0,calc(var(--hero-p,0) * -10px),0);
  }
  :is(.hero-buttons,.chapter-hero__copy > .inner-next,.chapter-hero__copy .button) {
    transform: translate3d(0,calc(var(--hero-p,0) * -5px),0);
  }
  :is(.tour-hero__image,.chapter-hero__media) img {
    transform: translate3d(0,calc(var(--hero-p,0) * 8px),0) scale(calc(1.04 + var(--hero-p,0) * .04));
  }
  .reading-aid__actions {
    align-items: start;
    flex-direction: column;
  }
  .reading-large .editorial {
    font-size: 20px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .animate-on-scroll.is-in-view {
    animation: none;
  }
  :is(.tour-hero,.chapter-hero) :is(h1,p,.hero-buttons,.inner-next,.button,img) {
    transform: none !important;
  }
}

/* The chapter menu floats over the article without changing its reading position. */
.article-toc .reading-menu {
  position: absolute;
  top: 100%;
  inset-inline: 0 auto;
  width: min(620px,100%);
  z-index: 60;
  background: var(--color-tint);
  padding: var(--space-6) 26px;
}

.reading-aid__actions a,.reading-aid__source {
  font-size: var(--text-deck);
  min-height: 44px;
  padding-block: 10px;
}

/* Every opening uses a full content-width landscape photograph. */
.tour-hero {
  position: relative;
  background: var(--color-deep);
  color: var(--color-inverse);
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding-bottom: var(--space-7);
}
.tour-hero__layout {
  display: flex;
  align-items: center;
  order: -1;
  min-height: 0;
  padding-block: clamp(var(--space-12),6vw,88px);
}
.tour-hero .hero-text {
  width: 100%;
  max-width: 1000px;
}
.tour-hero__image {
  overflow: hidden;
  position: relative;
  inset: auto;
  width: var(--shell);
  height: auto;
  aspect-ratio: 2.4 / 1;
  margin: 0 auto;
}
.tour-hero__image picture {
  display: block;
  width: 100%;
  height: 100%;
}
:is(.page--guide,.page--case,.page--utility,.page--index) .chapter-opening {
  display: grid;
  grid-template-columns: minmax(0,1fr);
  gap: var(--space-10);
}
:is(.page--case,.page--utility,.page--index) .chapter-hero__copy {
  max-width: 1100px;
  padding-block: 0;
}
:is(.page--guide,.page--case,.page--utility,.page--index) .chapter-hero__media {
  width: 100%;
  height: auto;
  aspect-ratio: 2.4 / 1;
  border-radius: 0;
}
@media (max-width: 760px) {
  .tour-hero {
    padding-bottom: var(--space-6);
  }
  :is(.page--guide,.page--case,.page--utility,.page--index) .chapter-opening {
    gap: 30px;
  }
  .tour-hero__image,:is(.page--guide,.page--case,.page--utility,.page--index) .chapter-hero__media {
    aspect-ratio: 16 / 9;
    height: auto;
  }
}

/* Conversion copy: concise outcomes and preparation guidance beside the action. */
.page--guide .chapter-hero__copy {
  grid-template-columns: minmax(0,1.5fr) minmax(0,1fr);
  gap: 0 8%;
  align-items: start;
  display: block;
}
.page--guide .chapter-hero__copy h1 {
  grid-row: span 2;
  margin: 0;
  margin-bottom: var(--space-7);
}
.hero-benefits {
  display: grid;
  grid-template-columns: repeat(3,minmax(0,1fr));
  gap: var(--space-3) 36px;
  max-width: 1000px;
  margin: 26px 0 0;
  padding-inline-start: var(--space-5);
  font-size: var(--text-support);
  line-height: 1.55;
  transform: translate3d(0,calc(var(--hero-p,0) * -12px),0);
}
.hero-doubt {
  max-width: 65ch;
  margin-top: var(--space-5);
  color: var(--color-muted);
  font-size: var(--text-support);
  line-height: 1.6;
}
.tour-hero .hero-doubt {
  color: inherit;
}
@media (max-width: 760px) {
  .hero-benefits {
    grid-template-columns: 1fr;
    gap: var(--space-2);
    transform: translate3d(0,calc(var(--hero-p,0) * -7px),0);
  }
}
@media (prefers-reduced-motion: reduce) {
  .hero-benefits {
    transform: none;
  }
}