:root {
  --charcoal: #20272a;
  --deep: #101516;
  --ink: #182023;
  --slate: #59676b;
  --paper: #f4efe4;
  --paper-strong: #fffaf0;
  --white: #ffffff;
  --copper: #b96f49;
  --copper-dark: #84482f;
  --gold: #d8af4f;
  --gold-soft: #f0d37c;
  --steel: #6e7d80;
  --line: rgba(32, 39, 42, 0.18);
  --line-light: rgba(255, 255, 255, 0.16);
  --rail: 116px;
  --radius: 8px;
  --font-display: "Gill Sans Ultra Bold Condensed", "Impact", "Haettenschweiler", sans-serif;
  --font-body: "Candara", "Corbel", "Segoe UI", sans-serif;
  --font-serif: "Constantia", "Cambria", "Georgia", serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  letter-spacing: 0;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--deep);
  font-family: var(--font-body);
  line-height: 1.58;
  overflow-x: hidden;
}

body.nav-open {
  overflow: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 4px;
}

.scroll-progress {
  position: fixed;
  z-index: 100;
  top: 0;
  left: 0;
  width: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--gold), var(--copper));
}

.wide-shell {
  width: min(1220px, calc(100% - 8vw));
  margin: 0 auto;
}

.site-header {
  position: fixed;
  z-index: 90;
  top: 0;
  bottom: 0;
  left: 0;
  width: var(--rail);
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 28px;
  padding: 22px 14px;
  color: var(--paper);
  background: rgba(16, 21, 22, 0.88);
  border-right: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(20px);
}

.site-header.is-scrolled {
  background: rgba(16, 21, 22, 0.96);
}

.brand {
  display: grid;
  place-items: center;
  gap: 6px;
  width: 88px;
  min-height: 86px;
  padding: 12px 8px;
  background: rgba(255, 250, 240, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-top: 3px solid rgba(185, 111, 73, 0.76);
  border-radius: var(--radius);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.16);
  backdrop-filter: blur(12px);
}

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

.brand span {
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.74rem;
  font-weight: 900;
  line-height: 1;
  text-align: center;
}

.brand strong {
  color: var(--copper);
}

.menu-toggle {
  display: none;
}

.main-nav {
  align-self: end;
  display: grid;
  gap: 10px;
}

.main-nav a {
  position: relative;
  min-height: 72px;
  display: grid;
  align-content: center;
  gap: 3px;
  padding: 10px 8px;
  color: rgba(255, 255, 255, 0.72);
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 800;
  font-size: 0.8rem;
  transition: color 220ms ease, border-color 220ms ease, background 220ms ease, transform 220ms ease;
}

.main-nav a span {
  color: var(--gold);
  font-family: var(--font-serif);
  font-size: 0.78rem;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(216, 175, 79, 0.42);
  transform: translateX(4px);
}

.site-main,
.site-footer {
  margin-left: var(--rail);
}

.hero-atlas {
  position: relative;
  min-height: 88svh;
  display: grid;
  align-items: end;
  padding: 7vw 4vw 4vw;
  color: var(--white);
  overflow: hidden;
  background: var(--deep);
}

.hero-media,
.hero-veil,
.angle-system {
  position: absolute;
  inset: 0;
}

.hero-media {
  width: 100%;
  height: 112%;
  object-fit: cover;
  opacity: 0.72;
  transform: translateY(var(--media-offset, 0));
  filter: saturate(1.02) contrast(1.05);
}

.hero-veil {
  background:
    linear-gradient(90deg, rgba(16, 21, 22, 0.96) 0%, rgba(16, 21, 22, 0.72) 46%, rgba(16, 21, 22, 0.28) 100%),
    linear-gradient(180deg, rgba(16, 21, 22, 0.18) 0%, rgba(16, 21, 22, 0.84) 100%);
}

.angle-system {
  pointer-events: none;
  opacity: 0.42;
}

.angle-system span {
  position: absolute;
  display: block;
  border: 1px solid rgba(216, 175, 79, 0.36);
  transform: skewX(-20deg) rotate(-6deg);
}

.angle-system span:nth-child(1) {
  right: 7vw;
  top: 14vh;
  width: 31vw;
  height: 16vw;
}

.angle-system span:nth-child(2) {
  left: 4vw;
  top: 20vh;
  width: 18vw;
  height: 48vh;
  border-color: rgba(185, 111, 73, 0.36);
}

.angle-system span:nth-child(3) {
  right: 24vw;
  bottom: 10vh;
  width: 36vw;
  height: 17vw;
  border-color: rgba(255, 255, 255, 0.14);
}

.angle-system span:nth-child(4) {
  right: -6vw;
  bottom: -6vh;
  width: 22vw;
  height: 34vh;
  border-color: rgba(216, 175, 79, 0.22);
}

.hero-copy {
  position: relative;
  z-index: 2;
  width: min(880px, 76vw);
  padding-bottom: 16px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--gold);
  font-weight: 900;
  font-size: 0.86rem;
  text-transform: uppercase;
  letter-spacing: 0;
}

.hero-copy h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(6.2rem, 17vw, 17rem);
  line-height: 0.76;
  font-weight: 900;
  letter-spacing: 0;
}

.hero-copy h1 span {
  display: block;
}

.hero-copy .eyebrow {
  display: block;
  max-width: 680px;
  margin: 0 0 clamp(30px, 3.5vw, 58px);
  color: var(--gold);
  font-size: clamp(0.9rem, 1vw, 1.08rem);
  line-height: 1.16;
}

.hero-copy > p:not(.eyebrow) {
  max-width: 700px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: clamp(1.08rem, 1.6vw, 1.42rem);
}

.hero-actions,
.tags,
.tab-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 20px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 900;
  transition: transform 220ms ease, background 220ms ease, color 220ms ease, border-color 220ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-solid {
  color: var(--deep);
  background: var(--gold);
  border-color: var(--gold);
}

.button-solid:hover {
  background: var(--gold-soft);
}

.button-line {
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.44);
}

.button-line:hover {
  border-color: var(--gold);
}

.hero-ledger {
  position: absolute;
  z-index: 3;
  right: 4vw;
  bottom: 5vw;
  width: min(340px, 28vw);
  display: grid;
  border-top: 1px solid rgba(216, 175, 79, 0.68);
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

.hero-ledger div {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 16px;
  align-items: center;
  padding: 16px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.hero-ledger div:first-child {
  border-top: 0;
}

.hero-ledger strong {
  color: var(--gold);
  font-family: var(--font-display);
  font-size: 3rem;
  line-height: 0.9;
}

.hero-ledger span {
  color: rgba(255, 255, 255, 0.74);
}

.opening-strip {
  padding: 72px 0 78px;
  color: var(--paper);
  background:
    linear-gradient(135deg, rgba(185, 111, 73, 0.2), transparent 36%),
    var(--deep);
}

.opening-layout {
  display: grid;
  grid-template-columns: 150px minmax(280px, 0.95fr) minmax(280px, 0.85fr);
  gap: 44px;
  align-items: end;
}

.opening-mark {
  margin: 0;
  color: rgba(216, 175, 79, 0.9);
  font-family: var(--font-display);
  font-size: 8rem;
  line-height: 0.78;
}

.opening-text h2,
.atlas-heading h2,
.method-heading h2,
.scenario-copy h2,
.assurance-title h2,
.faq-title h2,
.contact-copy h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(2.25rem, 4.6vw, 5.2rem);
  line-height: 0.98;
  font-weight: 700;
  letter-spacing: 0;
}

.opening-note,
.atlas-heading p,
.scenario-copy p,
.contact-copy p {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 1.08rem;
}

.image-score {
  display: grid;
  grid-template-columns: 1.2fr 0.78fr 0.78fr;
  min-height: 420px;
  background: var(--paper);
}

.image-score figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  min-height: 420px;
  border-right: 1px solid rgba(255, 255, 255, 0.5);
}

.image-score img {
  width: 100%;
  height: 100%;
  min-height: 420px;
  object-fit: cover;
  filter: saturate(1.02) contrast(1.02);
  transition: transform 850ms ease;
}

.image-score figure:hover img {
  transform: scale(1.045);
}

.image-score figcaption {
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: 20px;
  padding-top: 14px;
  color: var(--white);
  border-top: 1px solid rgba(216, 175, 79, 0.74);
  font-weight: 900;
  text-shadow: 0 4px 18px rgba(0, 0, 0, 0.42);
}

.activity-atlas {
  padding: 96px 0 110px;
  background: var(--paper);
}

.atlas-heading {
  max-width: 980px;
  margin-bottom: 56px;
}

.atlas-heading .eyebrow,
.chapter-kicker,
.assurance-title .eyebrow,
.faq-title .eyebrow,
.contact-copy .eyebrow {
  color: var(--copper);
}

.atlas-heading h2,
.assurance-title h2,
.faq-title h2 {
  color: var(--ink);
}

.atlas-heading p {
  max-width: 720px;
  margin-top: 18px;
  color: var(--slate);
}

.atlas-grid {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 40px;
}

.chapter-rail {
  position: sticky;
  top: 34px;
  align-self: start;
  display: grid;
  gap: 7px;
  padding-top: 8px;
}

.chapter-rail a {
  padding: 10px 0;
  color: var(--slate);
  border-bottom: 1px solid var(--line);
  font-weight: 900;
  font-size: 0.9rem;
  transition: color 180ms ease, transform 180ms ease;
}

.chapter-rail a:hover {
  color: var(--copper-dark);
  transform: translateX(6px);
}

.chapter-list {
  display: grid;
  gap: 62px;
}

.chapter {
  display: grid;
  grid-template-columns: minmax(280px, 0.94fr) minmax(340px, 1.06fr);
  gap: 0;
  min-height: 560px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 250, 240, 0.64);
}

.chapter-alt {
  grid-template-columns: minmax(340px, 1.06fr) minmax(280px, 0.94fr);
}

.chapter-alt figure {
  order: 2;
}

.chapter figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--charcoal);
  clip-path: polygon(0 0, 100% 0, 88% 100%, 0 100%);
}

.chapter-alt figure {
  clip-path: polygon(12% 0, 100% 0, 100% 100%, 0 100%);
}

.chapter figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(16, 21, 22, 0.42));
}

.chapter img {
  width: 100%;
  height: 100%;
  min-height: 560px;
  object-fit: cover;
  transition: transform 900ms ease;
}

.chapter:hover img {
  transform: scale(1.04);
}

.chapter-copy {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(30px, 5vw, 72px);
}

.chapter-number {
  position: absolute;
  top: 24px;
  right: 34px;
  color: rgba(185, 111, 73, 0.2);
  font-family: var(--font-display);
  font-size: clamp(5rem, 12vw, 10rem);
  line-height: 0.72;
  pointer-events: none;
}

.chapter-kicker {
  position: relative;
  z-index: 1;
  margin: 0 0 8px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0;
}

.chapter h3 {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 0;
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: clamp(2rem, 3.8vw, 4rem);
  line-height: 0.98;
  letter-spacing: 0;
}

.chapter p {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 24px 0 0;
  color: #475356;
  font-size: 1.04rem;
}

.tags {
  position: relative;
  z-index: 1;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.tags li {
  padding: 8px 12px;
  color: var(--ink);
  background: rgba(216, 175, 79, 0.22);
  border: 1px solid rgba(216, 175, 79, 0.44);
  border-radius: var(--radius);
  font-size: 0.92rem;
  font-weight: 900;
}

.method-map {
  padding: 96px 0;
  color: var(--paper);
  background:
    linear-gradient(90deg, rgba(216, 175, 79, 0.16), transparent 44%),
    var(--charcoal);
}

.method-heading {
  max-width: 980px;
  margin-bottom: 54px;
}

.method-heading h2,
.scenario-copy h2,
.contact-copy h2 {
  color: var(--paper-strong);
}

.method-lanes {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line-light);
  border-bottom: 1px solid var(--line-light);
}

.lane {
  min-height: 330px;
  padding: 30px 26px;
  border-left: 1px solid var(--line-light);
}

.lane:first-child {
  border-left: 0;
}

.lane span {
  color: var(--gold);
  font-family: var(--font-display);
  font-size: 4.6rem;
  line-height: 0.78;
}

.lane h3 {
  margin: 28px 0 12px;
  font-family: var(--font-serif);
  font-size: 2rem;
  line-height: 1;
}

.lane p {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
}

.scenario-room {
  position: relative;
  min-height: 720px;
  display: grid;
  align-items: center;
  overflow: hidden;
  color: var(--white);
  background: var(--deep);
}

.scenario-bg,
.scenario-shade {
  position: absolute;
  inset: 0;
}

.scenario-bg {
  width: 100%;
  height: 116%;
  object-fit: cover;
  opacity: 0.72;
  transform: translateY(var(--media-offset, 0));
}

.scenario-shade {
  background:
    linear-gradient(90deg, rgba(16, 21, 22, 0.92), rgba(16, 21, 22, 0.46), rgba(16, 21, 22, 0.86)),
    linear-gradient(180deg, rgba(16, 21, 22, 0.2), rgba(16, 21, 22, 0.88));
}

.scenario-layout {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(340px, 1.1fr);
  gap: 56px;
  align-items: end;
}

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

.scenario-console {
  border-left: 1px solid rgba(216, 175, 79, 0.64);
  padding-left: 32px;
}

.tab-controls {
  margin-bottom: 24px;
}

.tab-button {
  min-height: 44px;
  padding: 9px 14px;
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius);
  font-weight: 900;
}

.tab-button.is-active {
  color: var(--deep);
  background: var(--gold);
  border-color: var(--gold);
}

.tab-content {
  min-height: 230px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.tab-content h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(2rem, 3.4vw, 3.6rem);
  line-height: 0.98;
}

.tab-content p {
  max-width: 680px;
  margin: 18px 0 0;
  color: rgba(255, 255, 255, 0.76);
}

.assurance-band {
  padding: 90px 0;
  background: var(--paper);
}

.assurance-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.82fr) minmax(360px, 1.18fr);
  gap: 56px;
}

.assurance-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.assurance-item {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 26px;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}

.assurance-item span {
  color: var(--copper-dark);
  font-family: var(--font-display);
  font-size: 2.8rem;
  line-height: 0.82;
}

.assurance-item p {
  margin: 0;
  color: var(--slate);
}

.faq-desk {
  padding: 96px 0;
  background: var(--paper-strong);
}

.faq-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.82fr) minmax(360px, 1.18fr);
  gap: 56px;
  align-items: start;
}

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

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

.faq-item button {
  width: 100%;
  padding: 24px 0;
  color: var(--ink);
  background: transparent;
  border: 0;
  text-align: left;
  font-weight: 900;
  font-size: 1.08rem;
}

.faq-item button::after {
  content: "+";
  float: right;
  color: var(--copper);
  font-family: var(--font-display);
  font-size: 2.5rem;
  line-height: 0.6;
}

.faq-item button[aria-expanded="true"]::after {
  content: "-";
}

.faq-answer {
  padding: 0 0 24px;
  color: var(--slate);
}

.faq-answer p {
  margin: 0;
}

.contact-station {
  padding: 96px 0;
  color: var(--paper);
  background:
    linear-gradient(135deg, rgba(185, 111, 73, 0.22), transparent 48%),
    var(--deep);
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.88fr) minmax(360px, 1.12fr);
  gap: 56px;
  align-items: start;
}

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

.contact-form {
  display: grid;
  gap: 18px;
  padding: 0 0 0 34px;
  border-left: 1px solid rgba(216, 175, 79, 0.56);
}

.contact-form label {
  display: grid;
  gap: 8px;
  font-weight: 900;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  min-height: 50px;
  padding: 12px 14px;
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius);
}

.contact-form option {
  color: var(--ink);
}

.contact-form textarea {
  resize: vertical;
}

.form-status {
  min-height: 24px;
  margin: 0;
  color: var(--gold-soft);
}

.site-footer {
  padding: 28px 0;
  color: rgba(255, 255, 255, 0.74);
  background: #0a0f10;
}

.footer-layout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.footer-layout img {
  width: 46px;
  height: 46px;
}

.footer-layout p {
  margin: 0;
}

.footer-layout a {
  color: var(--gold);
  font-weight: 900;
}

.reveal {
  opacity: 1;
  transform: none;
}

.js-ready .reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 720ms ease, transform 720ms ease;
}

.js-ready .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1180px) {
  .hero-ledger {
    position: relative;
    right: auto;
    bottom: auto;
    width: min(680px, 78vw);
    margin-top: 36px;
  }

  .hero-atlas {
    align-content: end;
  }

  .opening-layout,
  .atlas-grid,
  .assurance-layout,
  .faq-layout,
  .contact-layout,
  .scenario-layout {
    grid-template-columns: 1fr;
  }

  .chapter-rail {
    position: static;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 0;
  }

  .chapter-rail a {
    padding: 8px 10px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
  }

  .method-lanes {
    grid-template-columns: repeat(2, 1fr);
  }

  .lane:nth-child(3) {
    border-left: 0;
  }
}

@media (max-width: 860px) {
  :root {
    --rail: 0px;
  }

  .site-main,
  .site-footer {
    margin-left: 0;
  }

  .site-header {
    right: 0;
    bottom: auto;
    width: auto;
    min-height: 68px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 22px;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  }

  .brand {
    width: auto;
    min-height: 48px;
    grid-template-columns: 28px auto;
    padding: 8px 12px;
    background: rgba(255, 250, 240, 0.1);
    border-top-width: 1px;
  }

  .brand img {
    width: 28px;
  }

  .brand span {
    font-size: 0.8rem;
    text-align: left;
  }

  .menu-toggle {
    display: inline-grid;
    place-items: center;
    width: 44px;
    height: 44px;
    padding: 9px;
    color: var(--white);
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.58);
    border-radius: var(--radius);
  }

  .menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    margin: 4px 0;
    background: currentColor;
    transition: transform 220ms ease, opacity 220ms ease;
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .main-nav {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    align-self: auto;
    display: grid;
    gap: 0;
    padding: 18px 22px 26px;
    color: var(--paper);
    background: rgba(16, 21, 22, 0.98);
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    transform: translateY(-130%);
    transition: transform 260ms ease;
  }

  .main-nav.is-open {
    transform: translateY(0);
  }

  .main-nav a {
    min-height: 54px;
    grid-template-columns: 38px 1fr;
    align-items: center;
  }

  .hero-atlas {
    min-height: auto;
    padding: 94px 22px 30px;
  }

  .hero-copy,
  .hero-ledger {
    width: 100%;
  }

  .hero-copy h1 {
    font-size: clamp(4.6rem, 26vw, 6.7rem);
    line-height: 0.8;
  }

  .hero-copy .eyebrow {
    line-height: 1.22;
    margin-bottom: 24px;
    max-width: 310px;
  }

  .hero-copy p {
    margin-top: 18px;
    font-size: 1rem;
  }

  .hero-actions {
    margin-top: 22px;
  }

  .hero-actions .button {
    width: 100%;
  }

  .hero-ledger div {
    grid-template-columns: 88px 1fr;
    padding: 10px 0;
  }

  .wide-shell {
    width: calc(100% - 44px);
  }

  .opening-strip,
  .activity-atlas,
  .method-map,
  .assurance-band,
  .faq-desk,
  .contact-station {
    padding: 68px 0;
  }

  .opening-mark {
    font-size: 5.8rem;
  }

  .image-score {
    grid-template-columns: 1fr;
  }

  .image-score figure,
  .image-score img {
    min-height: 300px;
  }

  .chapter,
  .chapter-alt {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .chapter-alt figure {
    order: 0;
  }

  .chapter figure {
    clip-path: polygon(0 0, 100% 0, 100% 86%, 0 100%);
  }

  .chapter-alt figure {
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 86%);
  }

  .chapter img {
    min-height: 320px;
  }

  .chapter-copy {
    padding: 30px 24px 34px;
  }

  .chapter-number {
    top: 22px;
    right: 20px;
  }

  .method-lanes {
    grid-template-columns: 1fr;
  }

  .lane,
  .lane:nth-child(3) {
    border-left: 0;
    border-top: 1px solid var(--line-light);
  }

  .lane:first-child {
    border-top: 0;
  }

  .scenario-room {
    min-height: 760px;
    padding: 80px 0;
  }

  .scenario-console,
  .contact-form {
    padding-left: 0;
    border-left: 0;
    border-top: 1px solid rgba(216, 175, 79, 0.56);
    padding-top: 28px;
  }

  .assurance-item {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .footer-layout {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 540px) {
  .opening-text h2,
  .atlas-heading h2,
  .method-heading h2,
  .scenario-copy h2,
  .assurance-title h2,
  .faq-title h2,
  .contact-copy h2 {
    font-size: 2.25rem;
  }

  .chapter h3,
  .tab-content h3 {
    font-size: 2rem;
  }

  .chapter p {
    font-size: 1rem;
  }

  .hero-ledger strong {
    font-size: 2.15rem;
  }

  .tab-button {
    flex: 1 1 calc(50% - 8px);
  }
}

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

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

  .reveal,
  .js-ready .reveal {
    opacity: 1;
    transform: none;
  }
}