:root {
  color-scheme: light;
  --paper: #ece8df;
  --paper-bright: #f6f2e9;
  --paper-deep: #d7d1c5;
  --ink: #1d211f;
  --ink-soft: #3e4440;
  --muted: #6d706a;
  --red: #b94b37;
  --red-deep: #8f3528;
  --blue: #647b84;
  --blue-deep: #354f59;
  --amber: #bb8b43;
  --line: rgba(29, 33, 31, 0.17);
  --line-strong: rgba(29, 33, 31, 0.42);
  --light-line: rgba(246, 242, 233, 0.23);
  --topbar-height: 64px;
  --gutter: clamp(24px, 5vw, 84px);
  --sans: "Avenir Next", Avenir, "PingFang SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  --serif: Iowan Old Style, "Songti SC", "Noto Serif CJK SC", Georgia, serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  background: var(--paper);
  scroll-behavior: smooth;
}

html.is-speaker {
  scroll-snap-type: y mandatory;
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: clip;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.drawer-open {
  overflow: hidden;
}

body::before {
  position: fixed;
  z-index: 80;
  inset: 0;
  content: "";
  opacity: 0.16;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.78' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.16'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
}

button,
a {
  color: inherit;
  font: inherit;
}

button {
  border: 0;
}

button:not(:disabled),
a[href] {
  cursor: pointer;
}

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

[hidden] {
  display: none !important;
}

:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 200;
  top: 8px;
  left: 8px;
  padding: 10px 14px;
  color: var(--paper-bright);
  background: var(--ink);
  text-decoration: none;
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.topbar {
  position: fixed;
  z-index: 60;
  inset: 0 0 auto;
  height: var(--topbar-height);
  display: grid;
  grid-template-columns: minmax(240px, 1fr) auto minmax(240px, 1fr);
  align-items: center;
  gap: 24px;
  padding: 0 var(--gutter);
  border-bottom: 1px solid var(--line);
  background: rgba(236, 232, 223, 0.94);
  backdrop-filter: blur(14px);
}

.brand {
  min-width: 0;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  width: 28px;
  height: 22px;
  display: grid;
  align-content: space-between;
  flex: 0 0 auto;
}

.brand-mark i {
  display: block;
  width: 100%;
  height: 3px;
  background: var(--ink);
  transform-origin: left;
}

.brand-mark i:nth-child(2) {
  width: 71%;
  background: var(--red);
}

.brand-mark i:nth-child(3) {
  width: 42%;
}

.brand-copy {
  min-width: 0;
  display: grid;
  line-height: 1.08;
}

.brand-copy strong {
  max-width: 31ch;
  overflow: hidden;
  font-size: 12px;
  font-weight: 680;
  letter-spacing: 0.02em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

body[data-language="en"] .brand-copy strong {
  max-width: 42ch;
  font-size: 11.5px;
}

.brand-copy small {
  margin-top: 4px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.topbar-center {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--muted);
  font-size: 11px;
}

.topbar-center > span:first-child {
  max-width: 22ch;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.section-counter {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
}

.section-counter b {
  color: var(--red-deep);
}

.topbar-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

.segmented-control {
  display: inline-flex;
  border-left: 1px solid var(--line-strong);
}

.segmented-control button,
.text-control {
  min-height: 32px;
  padding: 6px 9px;
  color: var(--muted);
  background: transparent;
  font-size: 10px;
  font-weight: 650;
  letter-spacing: 0.04em;
  transition: color 180ms ease, background 180ms ease;
}

.segmented-control button[aria-pressed="true"] {
  color: var(--paper-bright);
  background: var(--ink);
}

.segmented-control button:hover,
.text-control:hover {
  color: var(--red-deep);
}

.overview-panel {
  position: fixed;
  z-index: 70;
  top: var(--topbar-height);
  right: var(--gutter);
  width: min(480px, calc(100vw - 32px));
  padding: 22px 28px 24px;
  border: 1px solid var(--line-strong);
  border-top: 0;
  background: rgba(246, 242, 233, 0.985);
  box-shadow: 0 26px 70px rgba(29, 33, 31, 0.17);
  max-height: calc(100vh - var(--topbar-height) - 18px);
  overflow-y: auto;
}

.overview-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-strong);
}

.overview-heading p,
.overview-heading button {
  margin: 0;
  color: var(--red-deep);
  background: transparent;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.overview-heading button {
  padding: 2px 7px;
  color: var(--ink);
  font-size: 22px;
  line-height: 1;
}

.overview-panel ol {
  margin: 0;
  padding: 8px 0 0;
  list-style: none;
}

.overview-panel > ol {
  counter-reset: scene;
}

.overview-panel li {
  counter-increment: scene;
}

.overview-panel > ol > .overview-chapter {
  counter-increment: none;
  padding-top: 10px;
}

.overview-chapter > strong {
  display: block;
  padding: 8px 0 4px;
  color: var(--red-deep);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
}

.overview-chapter > ol {
  padding-top: 0;
}

.overview-panel a {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  font-weight: 620;
  text-decoration: none;
}

.overview-panel a::before {
  content: "0" counter(scene);
  color: var(--red);
  font-family: var(--mono);
  font-size: 10px;
}

.overview-panel a:hover {
  color: var(--red-deep);
}

.overview-hint {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.6;
}

.story {
  position: relative;
}

.scene {
  position: relative;
  min-height: 100svh;
  padding: calc(var(--topbar-height) + clamp(28px, 4vh, 54px)) var(--gutter) clamp(34px, 5vh, 68px);
  overflow: clip;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  isolation: isolate;
}

body[data-mode="public"] .scene {
  min-height: 860px;
  scroll-snap-align: none;
}

.scene-copy {
  position: relative;
  z-index: 2;
}

.kicker {
  margin: 0 0 14px;
  color: var(--red-deep);
  font-family: var(--mono);
  font-size: clamp(9px, 0.75vw, 11px);
  font-weight: 720;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  letter-spacing: -0.038em;
}

h1 {
  max-width: 12.5ch;
  margin-bottom: clamp(18px, 3vh, 34px);
  font-family: var(--serif);
  font-size: clamp(48px, 5.5vw, 88px);
  font-weight: 560;
  line-height: 0.99;
}

h2 {
  max-width: 17ch;
  margin-bottom: 14px;
  font-family: var(--serif);
  font-size: clamp(38px, 4.1vw, 68px);
  font-weight: 560;
  line-height: 1.04;
}

h3 {
  margin-bottom: 8px;
  font-size: clamp(18px, 1.7vw, 27px);
  line-height: 1.12;
}

.lede {
  max-width: 46ch;
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: clamp(15px, 1.25vw, 20px);
  line-height: 1.65;
}

body[data-language="en"] h1 {
  max-width: 13.5ch;
  font-size: clamp(44px, 5vw, 80px);
}

body[data-language="en"] h2 {
  max-width: 19ch;
  font-size: clamp(36px, 3.7vw, 62px);
}

body[data-language="en"] .lede {
  max-width: 54ch;
}

.scene-opening {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(480px, 1.1fr);
  grid-template-rows: 1fr auto;
  align-items: center;
  gap: 26px clamp(28px, 4vw, 72px);
  background:
    linear-gradient(90deg, rgba(236, 232, 223, 0.98) 0 38%, rgba(236, 232, 223, 0.78) 50%, rgba(236, 232, 223, 0.02) 72%),
    var(--paper);
}

.scene-opening::after {
  position: absolute;
  z-index: 3;
  top: calc(var(--topbar-height) + 10vh);
  left: 50.2%;
  width: 1px;
  height: 19vh;
  content: "";
  background: var(--red);
}

.opening-image {
  position: absolute;
  z-index: -1;
  inset: var(--topbar-height) 0 0 37%;
  margin: 0;
  overflow: hidden;
}

.opening-image::before {
  position: absolute;
  z-index: 1;
  inset: 0;
  content: "";
  background: linear-gradient(90deg, var(--paper) 0%, rgba(236, 232, 223, 0.55) 18%, transparent 43%);
}

.opening-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 56% center;
  filter: saturate(0.86) contrast(1.02);
  transform: scale(1.015);
}

.opening-image figcaption,
.emergence-image figcaption {
  position: absolute;
  z-index: 2;
  right: 22px;
  bottom: 18px;
  padding: 5px 8px;
  color: rgba(246, 242, 233, 0.78);
  background: rgba(29, 33, 31, 0.55);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.05em;
}

.opening-copy {
  align-self: center;
}

.opening-proof {
  position: relative;
  z-index: 4;
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-self: end;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line);
  background: rgba(236, 232, 223, 0.87);
}

.proof-item {
  min-height: 78px;
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  gap: 14px;
  padding: 16px clamp(14px, 2vw, 28px);
  border-right: 1px solid var(--line);
}

.proof-item:last-child {
  border-right: 0;
}

.proof-item strong {
  color: var(--red-deep);
  font-family: var(--serif);
  font-size: clamp(23px, 2.4vw, 39px);
  font-weight: 580;
  letter-spacing: -0.04em;
  white-space: nowrap;
}

.proof-item span {
  max-width: 18ch;
  color: var(--ink-soft);
  font-size: 11px;
  line-height: 1.35;
}

.opening-axis {
  position: absolute;
  z-index: 4;
  top: calc(var(--topbar-height) + 22px);
  right: var(--gutter);
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(246, 242, 233, 0.78);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.12em;
}

.opening-axis i {
  width: 22px;
  height: 1px;
  background: currentColor;
}

.scene-footnote {
  position: absolute;
  z-index: 4;
  left: var(--gutter);
  right: var(--gutter);
  bottom: 15px;
  display: flex;
  justify-content: space-between;
  margin: 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.08em;
}

.scene-emergence {
  min-height: 100svh;
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(400px, 1.15fr);
  grid-template-rows: 1fr auto;
  align-items: center;
  gap: 28px 6vw;
  color: var(--paper-bright);
  background: #202522;
}

.emergence-image,
.emergence-shade {
  position: absolute;
  z-index: -3;
  inset: 0;
  margin: 0;
}

.emergence-image {
  overflow: hidden;
}

.emergence-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: brightness(0.72) saturate(0.76) contrast(1.08);
  transform: scale(1.025);
  transition: filter 800ms var(--ease), transform 1400ms var(--ease);
}

.scene-emergence[data-emergence-step="1"] .emergence-image img {
  filter: brightness(0.76) saturate(0.83) contrast(1.08);
  transform: scale(1.04) translateX(-0.5%);
}

.scene-emergence[data-emergence-step="2"] .emergence-image img {
  filter: brightness(0.8) saturate(0.91) contrast(1.08);
  transform: scale(1.055) translateX(-1%);
}

.scene-emergence[data-emergence-step="3"] .emergence-image img {
  filter: brightness(0.84) saturate(1) contrast(1.08);
  transform: scale(1.07) translateX(-1.5%);
}

.emergence-shade {
  z-index: -2;
  background:
    linear-gradient(90deg, rgba(20, 24, 22, 0.94) 0 31%, rgba(20, 24, 22, 0.5) 54%, rgba(20, 24, 22, 0.1) 78%),
    linear-gradient(0deg, rgba(20, 24, 22, 0.94) 0 22%, transparent 54%);
}

.emergence-copy {
  align-self: start;
  padding-top: 2vh;
}

.emergence-copy .kicker {
  color: #e5a78e;
}

.emergence-copy h2 {
  max-width: 12ch;
  text-shadow: 0 2px 22px rgba(0, 0, 0, 0.3);
}

.emergence-copy .lede {
  max-width: 39ch;
  color: rgba(246, 242, 233, 0.76);
}

.emergence-state {
  width: min(560px, 100%);
  display: grid;
  grid-template-columns: 92px 1fr;
  align-self: center;
  justify-self: end;
  gap: 22px;
  padding: 22px 0;
  border-top: 1px solid rgba(246, 242, 233, 0.55);
  border-bottom: 1px solid var(--light-line);
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.4);
}

.emergence-state > span {
  color: #e5a78e;
  font-family: var(--serif);
  font-size: clamp(48px, 6vw, 92px);
  line-height: 0.85;
}

.emergence-state h3 {
  max-width: 22ch;
}

.emergence-state p {
  max-width: 42ch;
  margin-bottom: 0;
  color: rgba(246, 242, 233, 0.72);
  font-size: 13px;
  line-height: 1.55;
}

.emergence-sequence {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--light-line);
}

.emergence-step {
  min-height: 82px;
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 10px;
  padding: 15px 18px 13px;
  border-right: 1px solid var(--light-line);
  color: rgba(246, 242, 233, 0.56);
  background: rgba(18, 22, 20, 0.18);
  text-align: left;
  transition: color 240ms ease, background 240ms ease;
}

.emergence-step:last-child {
  border-right: 0;
}

.emergence-step span {
  font-family: var(--mono);
  font-size: 9px;
}

.emergence-step strong {
  font-size: 14px;
  line-height: 1.35;
}

.emergence-step[aria-pressed="true"] {
  color: var(--paper-bright);
  background: rgba(185, 75, 55, 0.72);
}

.emergence-caveat {
  position: absolute;
  right: var(--gutter);
  bottom: 126px;
  width: min(520px, 43vw);
  color: rgba(246, 242, 233, 0.74);
}

.caveat {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: start;
  gap: 12px;
  font-size: 10px;
  line-height: 1.55;
}

.caveat b {
  min-width: 24px;
  color: var(--red);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
}

.caveat p {
  margin: 0;
}

.scene-lenses {
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  gap: clamp(14px, 2vh, 24px);
  background:
    linear-gradient(rgba(29, 33, 31, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(29, 33, 31, 0.025) 1px, transparent 1px),
    var(--paper-bright);
  background-size: 58px 58px;
}

.lenses-heading,
.scale-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  align-items: end;
  gap: 5vw;
}

.lenses-heading h2,
.scale-heading h2 {
  max-width: 19ch;
  margin-bottom: 0;
  font-size: clamp(32px, 3.7vw, 60px);
}

.lenses-summary,
.scale-summary {
  max-width: 44ch;
  margin: 0 0 4px;
  color: var(--muted);
  font-size: clamp(13px, 1vw, 16px);
  line-height: 1.55;
}

.lens-tabs {
  display: flex;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line);
}

.lens-tab {
  min-width: 0;
  flex: 1;
  padding: 11px 12px;
  border-right: 1px solid var(--line);
  color: var(--muted);
  background: transparent;
  font-size: 11px;
  font-weight: 680;
  text-align: left;
  transition: color 180ms ease, background 180ms ease;
}

.lens-tab:last-child {
  border-right: 0;
}

.lens-tab::before {
  display: inline-block;
  width: 18px;
  margin-right: 5px;
  color: var(--red);
  content: attr(data-index);
  font-family: var(--mono);
  font-size: 8px;
}

.lens-tab:hover,
.lens-tab[aria-selected="true"] {
  color: var(--paper-bright);
  background: var(--ink);
}

.lens-stage {
  position: relative;
  min-height: clamp(300px, 43vh, 465px);
  border: 1px solid var(--line-strong);
  overflow: hidden;
  background: rgba(236, 232, 223, 0.68);
}

.lens-stage::before,
.lens-stage::after {
  position: absolute;
  z-index: 0;
  content: "";
  pointer-events: none;
}

.lens-stage::before {
  inset: 50% 0 auto;
  border-top: 1px dashed rgba(29, 33, 31, 0.13);
}

.lens-stage::after {
  inset: 0 auto 0 50%;
  border-left: 1px dashed rgba(29, 33, 31, 0.13);
}

.lens-atmosphere {
  position: absolute;
  z-index: -1;
  inset: 0;
  margin: 0;
  opacity: 0.1;
  filter: grayscale(0.5) contrast(0.9);
}

.lens-atmosphere img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.lens-lines {
  position: absolute;
  z-index: 1;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
}

.lens-lines line,
.lens-lines polyline,
.lens-lines circle {
  fill: none;
  vector-effect: non-scaling-stroke;
}

.lens-lines line {
  stroke: rgba(29, 33, 31, 0.22);
  stroke-width: 1;
  stroke-dasharray: 3 5;
}

.lens-lines .lens-axis,
.lens-lines circle {
  stroke: rgba(185, 75, 55, 0.52);
  stroke-width: 1.3;
  stroke-dasharray: none;
}

.lens-lines polyline {
  stroke: rgba(185, 75, 55, 0.55);
  stroke-width: 1.4;
}

.source-node {
  position: absolute;
  z-index: 3;
  min-width: 116px;
  max-width: 165px;
  display: grid;
  gap: 4px;
  padding: 9px 10px 8px;
  border: 1px solid rgba(29, 33, 31, 0.48);
  color: var(--ink);
  background: rgba(246, 242, 233, 0.91);
  box-shadow: 5px 6px 0 rgba(29, 33, 31, 0.08);
  text-align: left;
  transform: translate(-50%, -50%);
  transition: left 650ms var(--ease), top 650ms var(--ease), color 180ms ease, background 180ms ease, transform 180ms ease;
}

.source-node:hover,
.source-node:focus-visible {
  color: var(--paper-bright);
  background: var(--red-deep);
  transform: translate(-50%, -53%);
}

.source-node small {
  color: var(--red-deep);
  font-family: var(--mono);
  font-size: 7px;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.source-node:hover small,
.source-node:focus-visible small {
  color: #f4c4ad;
}

.source-node strong {
  font-size: 11px;
  line-height: 1.25;
}

.lens-core {
  position: absolute;
  z-index: 4;
  top: 50%;
  left: 50%;
  width: min(310px, 26vw);
  padding: 20px 22px 18px;
  color: var(--paper-bright);
  background: var(--ink);
  transform: translate(-50%, -50%);
  box-shadow: 12px 14px 0 rgba(185, 75, 55, 0.18);
}

.lens-core > p {
  margin-bottom: 10px;
  color: #e5a78e;
  font-family: var(--mono);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.lens-core h3 {
  font-family: var(--serif);
  font-size: clamp(18px, 1.45vw, 24px);
  font-weight: 560;
}

.lens-core span {
  display: block;
  color: rgba(246, 242, 233, 0.65);
  font-size: 10px;
  line-height: 1.45;
}

.lens-footer {
  display: grid;
  grid-template-columns: 1fr minmax(280px, 0.75fr);
  gap: 4vw;
}

.lens-instruction {
  margin: 0;
  color: var(--muted);
  font-size: 10px;
}

.lens-caveat {
  color: var(--muted);
}

.scene-scale {
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  gap: clamp(14px, 2vh, 24px);
  color: var(--paper-bright);
  background: var(--ink);
}

.scene-scale .kicker {
  color: #e5a78e;
}

.scene-scale .scale-summary {
  color: rgba(246, 242, 233, 0.62);
}

.metric-river {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr 0.9fr 0.55fr;
  border-top: 1px solid rgba(246, 242, 233, 0.5);
  border-bottom: 1px solid var(--light-line);
}

.metric-item {
  min-width: 0;
  display: grid;
  align-content: end;
  gap: 2px;
  min-height: clamp(102px, 15vh, 155px);
  padding: 13px clamp(10px, 1.3vw, 20px);
  border-right: 1px solid var(--light-line);
  color: inherit;
  background: transparent;
  text-align: left;
  transition: background 180ms ease;
}

.metric-item:last-child {
  border-right: 0;
}

.metric-item:hover,
.metric-item:focus-visible {
  background: var(--red-deep);
}

.metric-item strong {
  display: block;
  overflow: hidden;
  color: #e5a78e;
  font-family: var(--serif);
  font-size: clamp(26px, 3.6vw, 59px);
  font-weight: 520;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.04em;
  line-height: 0.98;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.metric-item span {
  color: rgba(246, 242, 233, 0.65);
  font-size: 9px;
  line-height: 1.25;
}

.scale-evidence {
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(150px, 19vw);
  gap: 22px;
}

.source-table-wrap {
  min-width: 0;
  overflow: auto;
  border-top: 1px solid var(--light-line);
  scrollbar-color: var(--red) rgba(246, 242, 233, 0.08);
}

.source-table {
  width: 100%;
  min-width: 770px;
  border-collapse: collapse;
  font-size: 12px;
  line-height: 1.42;
}

.source-table caption {
  padding: 10px 0 8px;
  color: rgba(246, 242, 233, 0.52);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-align: left;
  text-transform: uppercase;
}

.source-table th,
.source-table td {
  padding: 8px 13px 8px 0;
  border-bottom: 1px solid rgba(246, 242, 233, 0.13);
  vertical-align: top;
  text-align: left;
}

.source-table thead th {
  color: #e5a78e;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.source-table tbody th {
  width: 18%;
  color: var(--paper-bright);
  font-weight: 680;
}

.table-source-button {
  padding: 0 0 2px;
  border-bottom: 1px solid rgba(246, 242, 233, 0.38);
  color: inherit;
  background: transparent;
  font-size: inherit;
  font-weight: inherit;
  text-align: left;
}

.table-source-button:hover {
  color: #e5a78e;
  border-bottom-color: #e5a78e;
}

.source-table td {
  color: rgba(246, 242, 233, 0.62);
}

.source-table td:last-child {
  color: rgba(244, 196, 173, 0.76);
}

.human-scale-image {
  position: relative;
  min-height: 0;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--light-line);
}

.human-scale-image::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(0deg, rgba(20, 24, 22, 0.94), transparent 48%);
}

.human-scale-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.06);
}

.human-scale-image figcaption {
  position: absolute;
  z-index: 2;
  right: 13px;
  bottom: 12px;
  left: 13px;
  color: rgba(246, 242, 233, 0.72);
  font-size: 9.5px;
  line-height: 1.35;
}

.scale-source-note {
  margin: 0;
  color: rgba(246, 242, 233, 0.5);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.06em;
}

.progress-track {
  position: fixed;
  z-index: 65;
  right: 0;
  bottom: 0;
  left: 0;
  height: 3px;
  background: rgba(29, 33, 31, 0.14);
}

.progress-track i {
  display: block;
  width: 25%;
  height: 100%;
  background: var(--red);
  transform-origin: left;
  transition: width 450ms var(--ease);
}

.drawer-scrim {
  position: fixed;
  z-index: 88;
  inset: 0;
  background: rgba(17, 20, 18, 0.48);
  backdrop-filter: blur(4px);
}

.evidence-drawer {
  position: fixed;
  z-index: 90;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(560px, 92vw);
  display: grid;
  grid-template-rows: auto 1fr auto;
  color: var(--ink);
  background: var(--paper-bright);
  box-shadow: -18px 0 58px rgba(17, 20, 18, 0.25);
  transform: translateX(104%);
  transition: transform 420ms var(--ease);
}

.evidence-drawer[aria-hidden="false"] {
  transform: translateX(0);
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 28px;
  border-bottom: 1px solid var(--line-strong);
}

.drawer-header p {
  margin: 0;
  color: var(--red-deep);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.drawer-header button {
  padding: 3px 8px;
  color: var(--ink);
  background: transparent;
  font-size: 28px;
  line-height: 1;
}

.drawer-body {
  overflow: auto;
  padding: clamp(30px, 6vh, 64px) clamp(28px, 5vw, 58px);
}

.drawer-kind {
  margin-bottom: 13px;
  color: var(--blue-deep);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.drawer-body h2 {
  max-width: 13ch;
  font-size: clamp(38px, 4.5vw, 66px);
}

.drawer-role {
  max-width: 35ch;
  padding-left: 18px;
  border-left: 3px solid var(--red);
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.5;
}

.drawer-facts {
  margin: 34px 0;
  border-top: 1px solid var(--line-strong);
}

.drawer-facts div {
  display: grid;
  grid-template-columns: 98px 1fr;
  gap: 16px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.drawer-facts dt {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.drawer-facts dd {
  margin: 0;
  font-size: 12px;
  line-height: 1.45;
}

.drawer-warning {
  padding: 17px 18px;
  border: 1px solid rgba(185, 75, 55, 0.48);
  background: rgba(185, 75, 55, 0.07);
}

.drawer-warning span {
  color: var(--red-deep);
  font-family: var(--mono);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.drawer-warning p {
  margin: 9px 0 0;
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.5;
}

.drawer-source-link {
  display: inline-block;
  margin-top: 28px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--ink);
  font-size: 11px;
  font-weight: 700;
  text-decoration: none;
}

.drawer-footer {
  padding: 18px 28px;
  border-top: 1px solid var(--line-strong);
}

.drawer-footer button {
  width: 100%;
  padding: 13px;
  color: var(--paper-bright);
  background: var(--ink);
  font-size: 12px;
  font-weight: 700;
}

.noscript-warning {
  position: fixed;
  z-index: 300;
  right: 20px;
  bottom: 20px;
  max-width: 400px;
  padding: 16px;
  color: white;
  background: #8f3528;
}

/* Full briefing scene system */

.scene-light,
.scene-paper {
  color: var(--ink);
  background: var(--paper-bright);
}

.scene-paper {
  background:
    linear-gradient(rgba(29, 33, 31, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(29, 33, 31, 0.022) 1px, transparent 1px),
    var(--paper-bright);
  background-size: 58px 58px;
}

.scene-dark {
  color: var(--paper-bright);
  background: var(--ink);
}

.scene-dark .kicker {
  color: #e5a78e;
}

.scene-dark .section-summary,
.scene-dark .lede {
  color: rgba(246, 242, 233, 0.64);
}

.split-heading {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: minmax(0, 1.28fr) minmax(280px, 0.72fr);
  align-items: end;
  gap: clamp(32px, 6vw, 96px);
}

.split-heading h2 {
  max-width: 18ch;
  margin-bottom: 0;
  font-size: clamp(34px, 3.8vw, 62px);
}

.section-summary {
  max-width: 48ch;
  margin: 0 0 5px;
  color: var(--muted);
  font-size: clamp(13px, 1.05vw, 17px);
  line-height: 1.58;
}

.texture-backdrop {
  position: absolute;
  z-index: -1;
  inset: 0;
  margin: 0;
  overflow: hidden;
  opacity: 0.1;
}

.texture-backdrop img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.1);
}

.texture-backdrop-left {
  right: 45%;
  opacity: 0.08;
}

/* C1.02 Research economics */

.scene-economics {
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: clamp(20px, 3vh, 34px);
}

.frontier-figure {
  min-height: 350px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 170px minmax(0, 1fr);
  align-items: stretch;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.frontier-side {
  display: grid;
  align-content: center;
  gap: 20px;
  padding: 32px clamp(22px, 3vw, 48px);
}

.frontier-side > p {
  margin: 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.frontier-side > strong {
  max-width: 14ch;
  font-family: var(--serif);
  font-size: clamp(27px, 2.5vw, 42px);
  font-weight: 560;
  line-height: 1.12;
}

.frontier-side ul {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.frontier-side li {
  padding: 10px 8px 10px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 11px;
}

.frontier-after {
  color: var(--paper-bright);
  background: var(--ink);
}

.frontier-after > p,
.frontier-after li {
  color: rgba(246, 242, 233, 0.62);
}

.frontier-after li,
.frontier-after ul {
  border-color: rgba(246, 242, 233, 0.15);
}

.frontier-shift {
  display: grid;
  grid-template-rows: 1fr auto auto auto 1fr;
  place-items: center;
  border-right: 1px solid var(--line-strong);
  border-left: 1px solid var(--line-strong);
  color: var(--red-deep);
  background: rgba(185, 75, 55, 0.07);
  font-family: var(--mono);
  font-size: 11px;
}

.frontier-shift i {
  width: 1px;
  height: 52px;
  background: var(--red);
}

.frontier-shift b {
  font-family: var(--serif);
  font-size: 30px;
  font-weight: 500;
}

.execution-proof {
  display: grid;
  grid-template-columns: minmax(210px, 1fr) repeat(3, auto);
  align-items: center;
  gap: 24px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.execution-proof > span {
  color: var(--red-deep);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.execution-proof strong {
  padding-left: 20px;
  border-left: 1px solid var(--line);
  font-family: var(--serif);
  font-size: clamp(22px, 2vw, 34px);
  font-weight: 560;
}

.execution-proof small {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 8px;
  font-weight: 500;
}

/* C1.03 Emergence: image first, four ideas visible at once */

.scene-emergence {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto 1fr auto;
  align-items: start;
  gap: 0;
  color: var(--ink);
  background: var(--paper-bright);
}

.emergence-image {
  top: 28%;
  height: 72%;
}

.emergence-image img,
.scene-emergence[data-emergence-step] .emergence-image img {
  filter: saturate(0.78) contrast(1.03) brightness(0.98);
  transform: none;
}

.emergence-shade {
  background: linear-gradient(180deg, var(--paper-bright) 0 27%, rgba(246, 242, 233, 0.93) 34%, rgba(246, 242, 233, 0.18) 58%, rgba(29, 33, 31, 0.17) 100%);
}

.emergence-copy {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(280px, 0.68fr);
  align-items: end;
  gap: 6vw;
  padding: 0;
}

.emergence-copy .kicker {
  grid-column: 1 / -1;
  margin-bottom: -3px;
  color: var(--red-deep);
}

.emergence-copy h2 {
  max-width: 15ch;
  margin: 0;
  color: var(--ink);
  text-shadow: none;
  font-size: clamp(34px, 3.6vw, 59px);
}

.emergence-copy .lede {
  max-width: 46ch;
  margin-bottom: 4px;
  color: var(--muted);
}

.emergence-state {
  display: none;
}

.emergence-sequence {
  position: absolute;
  z-index: 4;
  right: var(--gutter);
  bottom: 60px;
  left: var(--gutter);
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid rgba(29, 33, 31, 0.54);
  border-bottom: 1px solid rgba(29, 33, 31, 0.35);
  background: rgba(246, 242, 233, 0.88);
  backdrop-filter: blur(9px);
}

.emergence-step {
  min-height: 124px;
  display: grid;
  grid-template-columns: 30px 1fr;
  grid-template-rows: auto 1fr;
  gap: 5px 10px;
  padding: 16px 17px 14px;
  border-right: 1px solid var(--line-strong);
  color: var(--ink);
  background: transparent;
}

.emergence-step:last-child {
  border-right: 0;
}

.emergence-step > span {
  grid-row: 1 / -1;
  color: var(--red-deep);
  font-family: var(--mono);
  font-size: 9px;
}

.emergence-step strong {
  font-size: 14px;
  line-height: 1.35;
}

.emergence-step p {
  margin: 0;
  color: var(--muted);
  font-size: 10.5px;
  line-height: 1.45;
}

.emergence-caveat {
  right: var(--gutter);
  bottom: 21px;
  width: min(730px, 60vw);
  color: var(--ink-soft);
}

.opening-image figcaption,
.emergence-image figcaption,
.landscape-image figcaption {
  display: none;
}

/* C1.04 Reusable engine */

.scene-engine {
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: clamp(18px, 2.5vh, 30px);
}

.engine-loop {
  position: relative;
  min-height: 300px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-template-rows: auto 1fr;
  gap: 20px 24px;
  align-items: stretch;
  padding: 24px 28px;
  border-top: 1px solid var(--light-line);
  border-bottom: 1px solid var(--light-line);
}

.engine-loop::before {
  position: absolute;
  right: 28px;
  bottom: 19px;
  left: 28px;
  height: 1px;
  background: rgba(246, 242, 233, 0.18);
  content: "";
}

.loop-center {
  position: relative;
  grid-column: 1 / -1;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 22px;
  min-height: 88px;
  padding: 18px 24px;
  border: 1px solid rgba(246, 242, 233, 0.2);
  background: rgba(246, 242, 233, 0.035);
}

.loop-center span {
  color: #e5a78e;
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.12em;
}

.loop-center b {
  max-width: none;
  font-family: var(--serif);
  font-size: clamp(28px, 3vw, 44px);
  font-weight: 520;
  line-height: 1;
  text-align: center;
}

.loop-node {
  position: relative;
  width: auto;
  display: grid;
  grid-template-columns: 34px 1fr;
  align-content: start;
  gap: 7px 12px;
  padding: 17px 18px 20px;
  border-top: 1px solid rgba(246, 242, 233, 0.45);
  background: rgba(29, 33, 31, 0.83);
}

.loop-node-one::after,
.loop-node-two::after {
  position: absolute;
  top: 50%;
  right: -19px;
  width: 12px;
  height: 12px;
  border-top: 1px solid #e5a78e;
  border-right: 1px solid #e5a78e;
  content: "";
  transform: translateY(-50%) rotate(45deg);
}

.loop-node i {
  grid-column: 1;
  grid-row: 1 / span 2;
  color: #e5a78e;
  font-family: var(--mono);
  font-size: 9px;
  font-style: normal;
}

.loop-node strong,
.loop-node p {
  grid-column: 2;
}

.loop-node strong {
  font-size: 13px;
}

.loop-node p {
  margin: 0;
  color: rgba(246, 242, 233, 0.58);
  font-size: 9px;
  line-height: 1.4;
}

.loop-node-one,
.loop-node-two,
.loop-node-three {
  inset: auto;
}

.value-table,
.literature-table,
.stage-table,
.selection-matrix {
  width: 100%;
  border-collapse: collapse;
  font-size: 10px;
  line-height: 1.35;
}

.value-table th,
.value-table td,
.literature-table th,
.literature-table td,
.stage-table th,
.stage-table td,
.selection-matrix th,
.selection-matrix td {
  padding: 9px 12px 9px 0;
  border-bottom: 1px solid var(--light-line);
  text-align: left;
}

.value-table thead th,
.literature-table thead th,
.stage-table thead th,
.selection-matrix thead th {
  color: #e5a78e;
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.value-table tbody th,
.stage-table tbody th,
.selection-matrix tbody th {
  font-weight: 680;
}

.value-table tbody td {
  color: rgba(246, 242, 233, 0.62);
}

/* C2.01 Evidence landscape */

.scene-landscape {
  display: grid;
  grid-template-rows: 1fr auto auto;
  align-items: end;
  color: var(--paper-bright);
  background: var(--ink);
}

.landscape-image,
.landscape-overlay {
  position: absolute;
  z-index: -2;
  inset: 0;
  margin: 0;
}

.landscape-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.72) brightness(0.78) contrast(1.04);
}

.landscape-overlay {
  z-index: -1;
  background: linear-gradient(90deg, rgba(22, 26, 24, 0.91) 0 33%, rgba(22, 26, 24, 0.34) 65%, rgba(22, 26, 24, 0.12)), linear-gradient(0deg, rgba(22, 26, 24, 0.9) 0 25%, transparent 60%);
}

.landscape-heading {
  align-self: start;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.5fr);
  align-items: end;
  gap: 6vw;
}

.landscape-heading .kicker { color: #e5a78e; }
.landscape-heading h2 { max-width: 14ch; }
.landscape-heading .lede { color: rgba(246, 242, 233, 0.72); }

.landscape-instruction {
  max-width: 35ch;
  margin: 0;
  color: rgba(246, 242, 233, 0.67);
  font-size: 11px;
  line-height: 1.5;
}

.source-spectrum {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  border-top: 1px solid rgba(246, 242, 233, 0.55);
  border-bottom: 1px solid var(--light-line);
  background: rgba(22, 26, 24, 0.64);
  backdrop-filter: blur(10px);
}

.spectrum-source {
  min-height: 108px;
  display: grid;
  align-content: end;
  gap: 5px;
  padding: 13px 12px;
  border-right: 1px solid var(--light-line);
  color: var(--paper-bright);
  background: transparent;
  text-align: left;
}

.spectrum-source:last-child { border-right: 0; }
.spectrum-source:hover { background: var(--red-deep); }
.spectrum-source small { color: #e5a78e; font-family: var(--mono); font-size: 7px; letter-spacing: 0.08em; }
.spectrum-source strong { font-size: 11px; line-height: 1.3; }
.spectrum-source span { color: rgba(246, 242, 233, 0.56); font-size: 8px; line-height: 1.3; }

.landscape-axis {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 14px;
  color: rgba(246, 242, 233, 0.52);
  font-family: var(--mono);
  font-size: 7px;
  letter-spacing: 0.08em;
}

.landscape-axis i { width: 34px; height: 1px; background: rgba(246, 242, 233, 0.3); }

/* C2.02 Processing spine */

.scene-spine {
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: clamp(20px, 3vh, 36px);
}

.process-spine {
  display: grid;
  grid-template-columns: 1fr 55px 1fr 55px 1fr 55px 1fr;
  align-items: center;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.process-spine article {
  min-height: 260px;
  display: grid;
  align-content: center;
  gap: 12px;
  padding: 28px clamp(16px, 2vw, 32px);
}

.process-spine article span { color: var(--red-deep); font-family: var(--mono); font-size: 9px; }
.process-spine article strong { max-width: 10ch; font-family: var(--serif); font-size: clamp(24px, 2.3vw, 38px); font-weight: 560; line-height: 1.08; }
.process-spine article p { max-width: 24ch; margin: 0; color: var(--muted); font-size: 10px; line-height: 1.45; }
.process-spine > i { position: relative; width: 100%; height: 1px; background: var(--red); }
.process-spine > i::after { position: absolute; top: -4px; right: 0; width: 8px; height: 8px; border-top: 1px solid var(--red); border-right: 1px solid var(--red); content: ""; transform: rotate(45deg); }

.lens-attachments {
  display: grid;
  grid-template-columns: minmax(210px, 1.4fr) repeat(5, auto);
  align-items: center;
  gap: 12px;
}

.lens-attachments p { margin: 0; color: var(--muted); font-size: 10px; }
.lens-attachments span { padding: 8px 10px; border-left: 2px solid var(--red); background: rgba(185, 75, 55, 0.06); font-size: 9px; font-weight: 650; }

/* Lens Explorer: reserve the right side for explanation */

.lens-lines {
  right: 31%;
  width: 69%;
}

.lens-nodes {
  position: absolute;
  z-index: 3;
  inset: 0 31% 0 0;
}

.lens-core {
  top: 0;
  right: 0;
  bottom: 0;
  left: auto;
  width: 31%;
  display: grid;
  align-content: center;
  padding: clamp(24px, 3vw, 48px);
  transform: none;
  box-shadow: -10px 0 0 rgba(185, 75, 55, 0.1);
}

.lens-core h3 { font-size: clamp(19px, 1.7vw, 28px); }

/* C2.04 Temporal coverage */

.scene-coverage {
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  gap: clamp(12px, 1.8vh, 22px);
}

.coverage-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  padding: 10px 0;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line);
}

.coverage-legend span { display: inline-flex; align-items: center; gap: 7px; color: var(--muted); font-size: 8px; }
.coverage-legend span::before { width: 22px; height: 4px; content: ""; background: var(--blue-deep); }
.coverage-legend .status-collected::before { background: var(--amber); }
.coverage-legend .status-uneven::before { background: repeating-linear-gradient(90deg, var(--red) 0 4px, transparent 4px 8px); }
.coverage-legend .status-absence::before { height: 1px; background: repeating-linear-gradient(90deg, var(--muted) 0 2px, transparent 2px 5px); }

.coverage-chart {
  min-height: 0;
  display: grid;
  grid-template-rows: auto repeat(11, minmax(27px, 1fr));
  align-content: stretch;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-strong);
}

.coverage-axis,
.coverage-row {
  display: grid;
  grid-template-columns: 200px 1fr 230px;
  align-items: center;
  gap: 12px;
}

.coverage-axis {
  grid-template-columns: 200px repeat(6, 1fr) 230px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 7px;
}

.coverage-axis span:first-child { grid-column: 2; }

.coverage-row {
  position: relative;
  border-top: 1px solid rgba(29, 33, 31, 0.09);
}

.coverage-row strong { font-size: 9px; font-weight: 670; }
.coverage-row > span { color: var(--muted); font-size: 8px; }
.coverage-row > i { position: relative; height: 8px; background: transparent; }
.coverage-row > i::before { position: absolute; top: 0; left: var(--start); width: calc(var(--end) - var(--start)); height: 100%; content: ""; background: var(--blue-deep); }
.coverage-row > i.status-collected::before { background: var(--amber); }
.coverage-row > i.status-uneven::before { background: repeating-linear-gradient(90deg, var(--red) 0 8px, transparent 8px 12px); }
.gap-marker { position: absolute; z-index: 2; top: 50%; left: calc(212px + var(--gap-start)); width: var(--gap-width); height: 10px; background: var(--paper-bright); transform: translateY(-50%); }
.point-gap { position: absolute; z-index: 2; top: 50%; left: calc(212px + var(--point)); width: 5px; height: 12px; background: var(--paper-bright); transform: translateY(-50%); }

.coverage-reading { display: grid; grid-template-columns: 150px 1fr; gap: 18px; align-items: start; }
.coverage-reading b { color: var(--red-deep); font-family: var(--mono); font-size: 8px; letter-spacing: 0.1em; }
.coverage-reading p { max-width: 78ch; margin: 0; color: var(--muted); font-size: 9px; line-height: 1.5; }

/* C2.06 Readiness */

.scene-readiness {
  display: grid;
  grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1fr) minmax(190px, 0.38fr);
  grid-template-rows: 1fr auto;
  gap: 26px clamp(26px, 4vw, 64px);
  align-items: center;
}

.readiness-copy h2 { max-width: 12ch; }
.readiness-bands { display: grid; border-top: 1px solid var(--line-strong); }
.readiness-band { display: grid; grid-template-columns: 95px 1fr; gap: 5px 14px; padding: 13px 0; border-bottom: 1px solid var(--line); }
.readiness-band > span { grid-row: 1 / -1; color: var(--red-deep); font-family: var(--mono); font-size: 7px; font-weight: 700; letter-spacing: 0.08em; }
.readiness-band strong { font-size: 12px; }
.readiness-band p { margin: 0; color: var(--muted); font-size: 9px; line-height: 1.45; }
.readiness-organizing { border-left: 4px solid var(--amber); padding-left: 13px; }
.readiness-verify { border-left: 4px solid var(--red); padding-left: 13px; }
.readiness-human-image { height: min(64vh, 540px); margin: 0; overflow: hidden; }
.readiness-human-image img { width: 100%; height: 100%; object-fit: cover; filter: saturate(0.7); }
.readiness-threshold { grid-column: 1 / -1; margin: 0; padding-top: 13px; border-top: 1px solid var(--line-strong); color: var(--red-deep); font-family: var(--mono); font-size: 9px; letter-spacing: 0.1em; }

/* Chapter 3 */

.scene-literature,
.scene-retrieval,
.scene-routes,
.scene-stages,
.scene-validation,
.scene-cleaning {
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: clamp(18px, 2.5vh, 30px);
}

.scene-reader {
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  gap: clamp(12px, 1.7vh, 20px);
}

.bibliography-field { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 20px; border-top: 1px solid var(--line-strong); }
.citation-feature { min-height: 240px; display: grid; align-content: center; gap: 13px; padding: 22px 28px; border-right: 1px solid var(--line); }
.citation-feature span { color: var(--red-deep); font-family: var(--mono); font-size: 8px; letter-spacing: 0.1em; }
.citation-feature strong { font-family: var(--serif); font-size: clamp(38px, 5vw, 76px); font-weight: 520; line-height: 1; }
.citation-feature p { max-width: 48ch; margin: 0; color: var(--muted); font-size: 10px; line-height: 1.5; }
.citation-secondary strong { max-width: 15ch; font-size: clamp(26px, 3vw, 46px); line-height: 1.08; }
.literature-table { color: var(--ink); font-size: 9px; }
.literature-table th, .literature-table td { border-color: var(--line); }
.literature-table thead th { color: var(--red-deep); }
.literature-table tbody th { width: 17%; font-weight: 680; }
.literature-table tbody td { color: var(--muted); }

.retrieval-comparison { display: grid; grid-template-columns: 1fr 160px 1fr; align-items: stretch; border-top: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong); }
.retrieval-path { min-height: 330px; display: grid; grid-template-columns: 1fr auto 45px auto 1fr; grid-template-rows: auto 1fr auto; align-items: center; gap: 12px; padding: 30px; }
.retrieval-path > span { grid-column: 1 / -1; color: var(--red-deep); font-family: var(--mono); font-size: 8px; letter-spacing: 0.1em; }
.retrieval-path strong { font-family: var(--serif); font-size: clamp(32px, 4vw, 64px); font-weight: 520; }
.retrieval-path i { width: 45px; height: 1px; background: var(--red); }
.retrieval-path p { grid-column: 1 / -1; max-width: 42ch; margin: 0; color: var(--muted); font-size: 9px; line-height: 1.45; }
.retrieval-principle { display: grid; place-content: center; gap: 12px; padding: 16px; color: var(--paper-bright); background: var(--ink); text-align: center; }
.retrieval-principle b { color: #e5a78e; font-family: var(--mono); font-size: 8px; letter-spacing: 0.1em; }
.retrieval-principle span { font-size: 10px; line-height: 1.45; }
.method-warning { display: grid; grid-template-columns: 40px 1fr; gap: 14px; align-items: start; }
.method-warning b { color: var(--red-deep); font-family: var(--serif); font-size: 35px; line-height: 0.8; }
.method-warning p { max-width: 90ch; margin: 0; color: var(--muted); font-size: 9px; line-height: 1.5; }

.route-field { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--light-line); border-bottom: 1px solid var(--light-line); }
.route { min-height: 420px; display: grid; align-content: center; gap: 23px; padding: 30px clamp(22px, 3vw, 42px); border-right: 1px solid var(--light-line); cursor: pointer; transition: opacity 220ms ease, background 220ms ease, transform 220ms ease; }
.route:last-child { border-right: 0; }
.route:focus-visible { outline: 2px solid #e5a78e; outline-offset: -3px; }
#routes[data-active-route]:not([data-active-route=""]) .route { opacity: 0.34; }
#routes[data-active-route="a"] .route-a,
#routes[data-active-route="b"] .route-b,
#routes[data-active-route="q"] .route-q { opacity: 1; background: rgba(185, 75, 55, 0.18); transform: translateY(-6px); }
.route > span { color: #e5a78e; font-family: var(--mono); font-size: 8px; letter-spacing: 0.1em; }
.route > strong { max-width: 10ch; font-family: var(--serif); font-size: clamp(28px, 3vw, 46px); font-weight: 520; line-height: 1.05; }
.route > div { display: flex; align-items: center; gap: 7px; }
.route > div b { padding: 7px 8px; border: 1px solid rgba(246, 242, 233, 0.28); font-size: 8px; font-weight: 600; }
.route > div i { flex: 1; height: 1px; background: var(--red); }
.route > p { max-width: 38ch; margin: 0; color: rgba(246, 242, 233, 0.58); font-size: 9px; line-height: 1.5; }
.route-b { background: rgba(185, 75, 55, 0.08); }

.stage-flow { display: grid; grid-template-columns: 1fr 200px 1fr; align-items: center; border-top: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong); }
.stage-flow article { min-height: 280px; display: grid; place-content: center; gap: 8px; text-align: center; }
.stage-flow article span { color: var(--red-deep); font-family: var(--mono); font-size: 8px; letter-spacing: 0.12em; }
.stage-flow article strong { font-family: var(--serif); font-size: clamp(48px, 6vw, 92px); font-weight: 520; letter-spacing: -0.04em; }
.stage-flow article p { margin: 0; color: var(--muted); font-size: 10px; }
.stage-filter { display: grid; grid-template-rows: 1fr auto 1fr; place-items: center; height: 100%; color: var(--paper-bright); background: var(--ink); }
.stage-filter i { width: 1px; height: 100%; background: rgba(246, 242, 233, 0.28); }
.stage-filter b { max-width: 14ch; padding: 15px; color: #e5a78e; font-size: 10px; text-align: center; }
.stage-table { color: var(--ink); }
.stage-table th, .stage-table td { border-color: var(--line); }
.stage-table thead th { color: var(--red-deep); }
.stage-table tbody td { color: var(--muted); }

.scene-record { grid-template-columns: minmax(270px, 0.65fr) minmax(0, 1.35fr); align-items: center; gap: 6vw; }
.record-heading h2 { max-width: 12ch; }
.record-anatomy { display: grid; grid-template-columns: 1.05fr 1fr; border: 1px solid var(--line-strong); background: var(--paper-bright); box-shadow: 12px 14px 0 rgba(29, 33, 31, 0.08); }
.record-original { min-height: 260px; display: grid; align-content: center; gap: 18px; padding: 34px; border-right: 1px solid var(--line-strong); background: rgba(185, 75, 55, 0.05); }
.record-original span { color: var(--red-deep); font-family: var(--mono); font-size: 8px; letter-spacing: 0.08em; }
.record-original p { margin: 0; font-family: var(--serif); font-size: clamp(20px, 2vw, 31px); line-height: 1.48; }
.record-anatomy dl { margin: 0; padding: 18px 24px; }
.record-anatomy dl div { display: grid; grid-template-columns: 120px 1fr; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.record-anatomy dt { color: var(--red-deep); font-family: var(--mono); font-size: 8px; }
.record-anatomy dd { margin: 0; color: var(--ink-soft); font-size: 10px; }
.record-anatomy aside { grid-column: 1 / -1; display: grid; grid-template-columns: auto 1fr auto 1fr; gap: 12px; padding: 14px 20px; color: var(--paper-bright); background: var(--ink); }
.record-anatomy aside b { color: #e5a78e; font-family: var(--mono); font-size: 8px; }
.record-anatomy aside p { margin: 0; color: rgba(246, 242, 233, 0.62); font-size: 9px; }

.reader-image { position: absolute; z-index: -1; inset: 0; margin: 0; opacity: 0.09; overflow: hidden; }
.reader-image img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(0.5); }
.reader-tabs { display: flex; border-top: 1px solid var(--line-strong); border-bottom: 1px solid var(--line); }
.reader-tab { flex: 1; padding: 11px 10px; border-right: 1px solid var(--line); color: var(--muted); background: rgba(246, 242, 233, 0.8); font-size: 9px; font-weight: 650; text-align: left; }
.reader-tab:last-child { border-right: 0; }
.reader-tab[aria-selected="true"], .reader-tab:hover { color: var(--paper-bright); background: var(--ink); }
.reader-workbench { min-height: 330px; display: grid; grid-template-columns: 0.88fr 1.12fr; border: 1px solid var(--line-strong); background: rgba(246, 242, 233, 0.9); }
.reader-source { display: grid; align-content: center; gap: 16px; padding: 34px; border-right: 1px solid var(--line-strong); }
.reader-source span { color: var(--red-deep); font-family: var(--mono); font-size: 8px; letter-spacing: 0.08em; }
.reader-source p { margin: 0; font-family: var(--serif); font-size: clamp(18px, 1.8vw, 28px); line-height: 1.55; }
.reader-source mark { color: inherit; background: transparent; border-bottom: 1px solid transparent; transition: color 180ms ease, background 180ms ease, border-color 180ms ease; }
.reader-source mark.is-supported { color: var(--ink); background: rgba(185, 75, 55, 0.13); border-bottom-color: var(--red-deep); }
.reader-source mark.is-unsupported { color: var(--muted); opacity: 0.42; }
.reader-source small { color: var(--muted); font-size: 8px; }
.reader-output { display: grid; align-content: center; gap: 15px; padding: 25px 32px; }
.reader-output > p { max-width: 50ch; margin: 0; color: var(--blue-deep); font-size: 13px; font-weight: 650; }
.reader-baseline { display: grid; grid-template-columns: auto 1fr; gap: 3px 10px; padding-bottom: 11px; border-bottom: 1px solid var(--line); color: var(--muted); }
.reader-baseline span { grid-row: 1 / 3; align-self: start; padding: 3px 6px; color: var(--paper-bright); background: var(--ink); font-family: var(--mono); font-size: 7px; letter-spacing: 0.07em; }
.reader-baseline b { color: var(--ink); font-size: 11px; }
.reader-baseline small { font-family: var(--mono); font-size: 7px; }
.reader-baseline.is-current { border-bottom-color: var(--red-deep); }
.reader-output dl { margin: 0; border-top: 1px solid var(--line-strong); }
.reader-output dl div { display: grid; grid-template-columns: 125px 1fr; gap: 14px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.reader-output dt { color: var(--red-deep); font-family: var(--mono); font-size: 8px; }
.reader-output dd { margin: 0; font-size: 11.5px; }
.reader-validation { display: grid; grid-template-columns: 100px 1fr; gap: 14px; padding: 10px 12px; border: 1px solid rgba(185, 75, 55, 0.4); }
.reader-validation span { color: var(--red-deep); font-family: var(--mono); font-size: 8px; }
.reader-validation p { margin: 0; color: var(--muted); font-size: 10.5px; }
.reader-contract { display: flex; justify-content: space-between; gap: 12px; color: var(--muted); font-family: var(--mono); font-size: 7px; letter-spacing: 0.08em; }

.validation-loop { display: grid; grid-template-columns: auto 1fr auto 1fr auto 1fr auto 1fr auto 1fr auto; align-items: center; padding: 25px 0; border-top: 1px solid var(--light-line); border-bottom: 1px solid var(--light-line); }
.validation-loop span { padding: 10px 12px; border: 1px solid rgba(246, 242, 233, 0.26); font-size: 9px; font-weight: 650; text-align: center; }
.validation-loop i { height: 1px; background: var(--red); }
.validation-evidence { display: grid; grid-template-columns: 0.7fr 1.25fr 0.8fr; gap: 28px; align-items: stretch; }
.validation-evidence > article { display: grid; align-content: center; padding: 26px; border: 1px solid var(--light-line); }
.validation-evidence > article strong { color: #e5a78e; font-family: var(--serif); font-size: clamp(52px, 6vw, 90px); font-weight: 520; line-height: 1; }
.validation-evidence > article p { margin: 6px 0; color: rgba(246, 242, 233, 0.62); font-size: 10px; }
.validation-evidence > article b { color: #e5a78e; font-family: var(--mono); font-size: 8px; }
.validation-evidence table { width: 100%; border-collapse: collapse; font-size: 9px; }
.validation-evidence th, .validation-evidence td { padding: 11px 8px 11px 0; border-bottom: 1px solid var(--light-line); text-align: left; }
.validation-evidence th { color: #e5a78e; font-family: var(--mono); font-size: 8px; }
.validation-evidence td { color: rgba(246, 242, 233, 0.64); }
.validation-evidence aside { display: grid; align-content: center; gap: 13px; padding-left: 22px; border-left: 3px solid var(--red); }
.validation-evidence aside span { color: #e5a78e; font-family: var(--mono); font-size: 8px; }
.validation-evidence aside p { margin: 0; color: rgba(246, 242, 233, 0.62); font-size: 10px; line-height: 1.5; }

.cleaning-texture { position: absolute; z-index: -1; inset: 0 0 0 45%; margin: 0; opacity: 0.1; overflow: hidden; }
.cleaning-texture img { width: 100%; height: 100%; object-fit: cover; }
.schema-transition { display: grid; grid-template-columns: 1fr 160px 1fr; align-items: stretch; border-top: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong); }
.schema-before, .schema-after { min-height: 320px; display: grid; align-content: center; gap: 0; padding: 30px; }
.schema-before span, .schema-after span { margin-bottom: 15px; color: var(--red-deep); font-family: var(--mono); font-size: 8px; letter-spacing: 0.1em; }
.schema-before p, .schema-after p { margin: 0; padding: 9px 0; border-bottom: 1px solid var(--line); font-family: var(--mono); font-size: 9px; }
.schema-before p { color: var(--muted); }
.schema-after { color: var(--paper-bright); background: var(--ink); }
.schema-after p { border-color: var(--light-line); color: rgba(246, 242, 233, 0.7); }
.schema-after span { color: #e5a78e; }
.schema-arrow { display: grid; grid-template-rows: 1fr auto 1fr; place-items: center; color: var(--red-deep); background: rgba(185, 75, 55, 0.06); }
.schema-arrow i { width: 1px; height: 100%; background: var(--red); }
.schema-arrow b { font-family: var(--mono); font-size: 9px; letter-spacing: 0.1em; }
.cleaning-note { display: grid; grid-template-columns: 240px 1fr; gap: 20px; }
.cleaning-note strong { color: var(--red-deep); font-family: var(--mono); font-size: 8px; letter-spacing: 0.08em; }
.cleaning-note p { max-width: 85ch; margin: 0; color: var(--muted); font-size: 9px; line-height: 1.5; }

/* Chapters 4–5 */

.scene-lifecycle,
.scene-cases,
.scene-opportunity,
.scene-selection {
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  gap: clamp(15px, 2.2vh, 26px);
}

.scene-selection {
  grid-template-rows: auto auto auto auto;
  gap: 10px;
}

.lifecycle-image { position: absolute; z-index: -1; inset: 0; margin: 0; opacity: 0.18; overflow: hidden; }
.lifecycle-image img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(0.7) contrast(1.1); }
.lifecycle-steps { display: grid; grid-template-columns: repeat(7, 1fr); border-top: 1px solid var(--light-line); border-bottom: 1px solid var(--light-line); }
.lifecycle-step { min-height: 76px; display: grid; align-content: end; gap: 5px; padding: 10px; border-right: 1px solid var(--light-line); color: rgba(246, 242, 233, 0.58); background: rgba(29, 33, 31, 0.35); text-align: left; }
.lifecycle-step:last-child { border-right: 0; }
.lifecycle-step small { font-family: var(--mono); font-size: 7px; letter-spacing: 0.08em; }
.lifecycle-step strong { font-size: 10px; }
.lifecycle-step[data-status="done"] small { color: #8fb2ab; }
.lifecycle-step[data-status="next"] small { color: #e5a78e; }
.lifecycle-step[data-status="later"] small { color: rgba(246, 242, 233, 0.42); }
.lifecycle-step[aria-selected="true"] { color: var(--paper-bright); background: var(--red-deep); }
.lifecycle-detail { display: grid; grid-template-columns: 0.7fr 1.3fr; align-items: center; gap: 5vw; padding: 30px clamp(26px, 4vw, 60px); border: 1px solid var(--light-line); background: rgba(29, 33, 31, 0.72); backdrop-filter: blur(8px); }
.lifecycle-detail > div span { color: #e5a78e; font-family: var(--mono); font-size: 8px; letter-spacing: 0.1em; }
.lifecycle-detail h3 { margin-top: 10px; font-family: var(--serif); font-size: clamp(34px, 4vw, 62px); font-weight: 520; }
.lifecycle-detail dl { margin: 0; }
.lifecycle-detail dl div { display: grid; grid-template-columns: 110px 1fr; gap: 14px; padding: 11px 0; border-bottom: 1px solid var(--light-line); }
.lifecycle-detail dt { color: #e5a78e; font-family: var(--mono); font-size: 8px; }
.lifecycle-detail dd { margin: 0; color: rgba(246, 242, 233, 0.7); font-size: 12px; }
.lifecycle-key { display: flex; gap: 20px; color: rgba(246, 242, 233, 0.55); font-size: 8px; }
.lifecycle-key span::before { display: inline-block; width: 8px; height: 8px; margin-right: 6px; content: ""; background: #8fb2ab; }
.lifecycle-key .life-next::before { background: var(--red); }
.lifecycle-key .life-later::before { background: rgba(246, 242, 233, 0.3); }

.case-tabs, .opportunity-tabs { display: flex; border-top: 1px solid var(--line-strong); border-bottom: 1px solid var(--line); }
.scene-cases .split-heading h2 { max-width: 13em; }
body[data-language="en"] .scene-cases .split-heading h2 { max-width: 22ch; }
body[data-language="en"] :is(.scene-coverage, .scene-scale, .scene-readiness) {
  gap: 14px;
  padding-top: calc(var(--topbar-height) + 28px);
  padding-bottom: 30px;
}
body[data-language="en"] :is(.scene-coverage, .scene-scale, .scene-readiness) .split-heading h2,
body[data-language="en"] .scene-scale .scale-heading h2 {
  max-width: 22ch;
  font-size: clamp(34px, 3.4vw, 54px);
}
.case-tab, .opportunity-tab { flex: 1; padding: 11px 12px; border-right: 1px solid var(--line); color: var(--muted); background: transparent; font-size: 9px; font-weight: 680; text-align: left; }
.case-tab:last-child, .opportunity-tab:last-child { border-right: 0; }
.case-tab[aria-selected="true"], .case-tab:hover { color: var(--paper-bright); background: var(--ink); }
.case-tab { display: grid; grid-template-columns: 62px 1fr; align-items: center; gap: 12px; }
.case-tab-visual { position: relative; height: 28px; display: block; border-bottom: 1px solid currentColor; opacity: 0.7; }
.case-tab-visual i { position: absolute; top: 9px; width: 6px; height: 6px; background: currentColor; border-radius: 50%; }
.case-tab-visual i:nth-child(1) { left: 4px; }
.case-tab-visual i:nth-child(2) { left: 26px; }
.case-tab-visual i:nth-child(3) { left: 50px; }
.case-tab[data-case="translation"] .case-tab-visual { border-bottom: 0; border-left: 1px solid currentColor; }
.case-tab[data-case="translation"] .case-tab-visual i:nth-child(1) { left: 1px; top: 0; }
.case-tab[data-case="translation"] .case-tab-visual i:nth-child(2) { left: 24px; top: 10px; }
.case-tab[data-case="translation"] .case-tab-visual i:nth-child(3) { left: 49px; top: 21px; }
.case-tab[data-case="experience"] .case-tab-visual { border: 0; background: linear-gradient(to bottom, currentColor 0 1px, transparent 1px 9px, currentColor 9px 10px, transparent 10px 18px, currentColor 18px 19px, transparent 19px); }
.case-tab[data-case="experience"] .case-tab-visual i { display: none; }
.case-stage { position: relative; min-height: 350px; display: grid; grid-template-columns: 0.82fr 0.72fr 0.72fr 0.58fr; grid-template-rows: auto 1fr auto; border: 1px solid var(--line-strong); overflow: hidden; }
.case-visual { grid-column: 1; grid-row: 1 / 4; position: relative; min-height: 350px; border-right: 1px solid var(--line-strong); background: rgba(185, 75, 55, 0.06); }
.case-visual i { position: absolute; border-radius: 50%; background: var(--red); opacity: 0.65; }
.case-visual i:nth-child(1){width:12px;height:12px;left:22%;top:28%}.case-visual i:nth-child(2){width:7px;height:7px;left:48%;top:21%}.case-visual i:nth-child(3){width:20px;height:20px;left:65%;top:48%}.case-visual i:nth-child(4){width:9px;height:9px;left:36%;top:69%}.case-visual i:nth-child(5){width:6px;height:6px;left:77%;top:77%}
.case-visual::before, .case-visual::after { position:absolute;inset:20% 14%;content:"";border-top:1px solid var(--line-strong);border-bottom:1px solid var(--line);transform:rotate(-18deg)}
.case-visual::after { transform:rotate(22deg); }
#cases[data-active-case="concepts"] .case-visual i { top: 50%; }
#cases[data-active-case="concepts"] .case-visual i:nth-child(1) { left: 12%; }
#cases[data-active-case="concepts"] .case-visual i:nth-child(2) { left: 28%; }
#cases[data-active-case="concepts"] .case-visual i:nth-child(3) { left: 48%; }
#cases[data-active-case="concepts"] .case-visual i:nth-child(4) { left: 68%; }
#cases[data-active-case="concepts"] .case-visual i:nth-child(5) { left: 84%; }
#cases[data-active-case="concepts"] .case-visual::before { inset: 50% 10% auto; transform: none; border-bottom: 0; }
#cases[data-active-case="concepts"] .case-visual::after { display: none; }
#cases[data-active-case="translation"] .case-visual::before { inset: 12% 50%; transform: none; border: 0; border-left: 1px solid var(--line-strong); }
#cases[data-active-case="translation"] .case-visual::after { inset: 28% 18%; transform: rotate(28deg); border-bottom: 0; }
#cases[data-active-case="experience"] .case-visual { background: linear-gradient(to bottom, rgba(185,75,55,.08) 0 32%, transparent 32% 34%, rgba(58,91,96,.08) 34% 65%, transparent 65% 67%, rgba(143,178,171,.12) 67% 100%); }
#cases[data-active-case="experience"] .case-visual::before, #cases[data-active-case="experience"] .case-visual::after { inset: 32% 10% auto; transform: none; border-bottom: 0; }
#cases[data-active-case="experience"] .case-visual::after { top: 66%; }
.case-question { grid-column: 2 / 4; grid-row: 1; padding: 20px 20px 12px; border-bottom: 1px solid var(--line); }
.case-question span, .case-ai span, .case-human span, .case-output span { color: var(--red-deep); font-family: var(--mono); font-size: 8px; letter-spacing: 0.09em; }
.case-question h3 { max-width: 30ch; margin-top: 10px; font-family: var(--serif); font-size: clamp(22px, 2.2vw, 36px); font-weight: 540; }
.case-ai, .case-human, .case-output { padding: 12px 18px; }
.case-ai { grid-column: 2; grid-row: 2; border-right: 1px solid var(--line); }
.case-human { grid-column: 3; grid-row: 2; }
.case-output { grid-column: 2 / 4; grid-row: 3; border-top: 1px solid var(--line); }
.case-ai p, .case-human p, .case-output p { margin: 8px 0 0; color: var(--muted); font-size: 11px; line-height: 1.5; }
.case-human-image { grid-column: 4; grid-row: 1 / 4; margin: 0; overflow: hidden; border-left: 1px solid var(--line-strong); }
.case-human-image img { width: 100%; height: 100%; object-fit: cover; filter: saturate(0.65); }
.case-common { margin: 0; color: var(--red-deep); font-family: var(--mono); font-size: 8px; letter-spacing: 0.06em; }

.scene-team { display: grid; grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr); align-items: center; gap: 7vw; color: var(--paper-bright); background: var(--ink); }
.team-image, .team-overlay { position: absolute; z-index: -2; inset: 0; margin: 0; }
.team-image img { width: 100%; height: 100%; object-fit: cover; filter: saturate(0.62) brightness(0.72); }
.team-overlay { z-index: -1; background: linear-gradient(90deg, rgba(20,24,22,.93) 0 40%, rgba(20,24,22,.35) 73%, rgba(20,24,22,.15)); }
.team-copy .kicker { color: #e5a78e; }
.team-copy h2 { max-width: 12ch; }
.team-copy .lede { color: rgba(246,242,233,.68); }
.team-core { position: absolute; top: 22%; right: 8%; width: min(470px, 36vw); padding: 18px 20px; border: 1px solid rgba(246,242,233,.38); background: rgba(20,24,22,.72); backdrop-filter: blur(8px); }
.team-core span { color:#e5a78e;font-family:var(--mono);font-size:8px;letter-spacing:.1em }
.team-core strong { display:block;margin-top:10px;font-family:var(--serif);font-size:clamp(18px,1.7vw,27px);font-weight:520;line-height:1.3 }
.team-roles { align-self:end; display:grid; grid-template-columns:1fr 1fr; border-top:1px solid rgba(246,242,233,.5); background:rgba(20,24,22,.62);backdrop-filter:blur(8px) }
.team-roles article { min-height:100px;padding:15px 16px;border-right:1px solid var(--light-line);border-bottom:1px solid var(--light-line) }
.team-roles span { color:#e5a78e;font-family:var(--mono);font-size:8px;letter-spacing:.08em }
.team-roles p { margin:8px 0 0;color:rgba(246,242,233,.65);font-size:9px;line-height:1.45 }

.opportunity-map-image { position:absolute;z-index:-1;inset:0;margin:0;opacity:.1;overflow:hidden }
.opportunity-map-image img { width:100%;height:100%;object-fit:cover;filter:grayscale(1) }
.opportunity-controls { display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid var(--line-strong);border-bottom:1px solid var(--line) }
.opportunity-controls label { display:grid;grid-template-columns:1fr auto;gap:6px 10px;padding:10px 12px;border-right:1px solid var(--line);color:var(--muted);font-size:9px }
.opportunity-controls label:last-child { border-right:0 }
.opportunity-controls input { grid-column:1 / 3;width:100%;accent-color:var(--red-deep) }
.opportunity-controls output { color:var(--red-deep);font-family:var(--mono);font-size:8px }
.opportunity-tabs { display:grid;grid-template-columns:repeat(4,1fr);border-top:0 }
.opportunity-tab { position:relative;display:grid;gap:5px;overflow:hidden }
.opportunity-tab::after { position:absolute;right:0;bottom:0;left:0;height:3px;content:"";background:var(--red-deep);transform:scaleX(var(--fit, .5));transform-origin:left }
.opportunity-tab strong { color:var(--ink);font-size:11px }
.opportunity-tab .opportunity-fit { color:var(--muted);font-family:var(--mono);font-size:7px }
.opportunity-tab[aria-selected="true"] { background:rgba(185,75,55,.09) }
.opportunity-detail { display:grid;grid-template-columns:.55fr 1.45fr;gap:4vw;padding:20px 26px;border:1px solid var(--line-strong);background:rgba(246,242,233,.88) }
.opportunity-detail header span { color:var(--red-deep);font-family:var(--mono);font-size:8px;letter-spacing:.1em }
.opportunity-detail h3 { margin-top:12px;font-family:var(--serif);font-size:clamp(32px,3.5vw,56px);font-weight:520 }
.opportunity-detail dl { margin:0;display:grid;grid-template-columns:1fr 1fr }
.opportunity-detail dl div { display:grid;align-content:center;padding:22px 24px;border-left:1px solid var(--line);border-bottom:1px solid var(--line) }
.opportunity-detail dt { color:var(--red-deep);font-family:var(--mono);font-size:8px;letter-spacing:.08em }
.opportunity-detail dd { margin:10px 0 0;color:var(--muted);font-size:13px;line-height:1.5 }
.opportunity-axis-note { margin:0;color:var(--muted);font-size:9px }

.selection-matrix { color:var(--paper-bright);font-size:10px;border-top:1px solid var(--light-line) }
.selection-matrix tbody td { color:rgba(246,242,233,.62) }
.selection-matrix tbody th { width:25%; }
.matrix-high { color:#8fb2ab !important;letter-spacing:3px }.matrix-mid{color:#e5a78e !important;letter-spacing:3px}.matrix-low{color:rgba(246,242,233,.38) !important;letter-spacing:3px}
.selection-rules { display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--light-line);border-bottom:1px solid var(--light-line) }
.selection-rules article { min-height:108px;display:grid;grid-template-columns:28px 1fr;align-content:start;gap:6px 12px;padding:14px 16px;border-right:1px solid var(--light-line) }
.selection-rules article:last-child { border-right:0 }
.selection-rules span { grid-row:1 / 3;color:#e5a78e;font-family:var(--mono);font-size:10px;letter-spacing:.08em }
.selection-rules b { color:var(--paper-bright);font-size:14px;font-weight:650 }
.selection-rules p { max-width:28ch;margin:0;color:rgba(246,242,233,.58);font-size:12px;line-height:1.5 }
.selection-decision { display:grid;grid-template-columns:130px 1fr auto;align-items:start;gap:18px;padding:10px 0;border-bottom:1px solid var(--light-line) }
.selection-decision > p { margin:0;color:#e5a78e;font-family:var(--mono);font-size:9px;letter-spacing:.08em }
.selection-decision ol { margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:6px 22px;list-style-position:inside;color:rgba(246,242,233,.78);font-size:11px }
.selection-decision small { max-width:25ch;color:rgba(246,242,233,.48);font-size:8px;line-height:1.45 }
.selection-note { margin:0;color:rgba(246,242,233,.48);font-size:8px }

.scene-pi-ask { display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);align-items:center;gap:7vw;color:var(--paper-bright);background:var(--ink) }
.pi-image { position:absolute;z-index:-2;inset:0;margin:0;overflow:hidden }
.pi-image img { width:100%;height:100%;object-fit:cover;filter:saturate(.55) brightness(.54) }
.scene-pi-ask::after { position:absolute;z-index:-1;inset:0;content:"";background:linear-gradient(90deg,rgba(20,24,22,.94) 0 42%,rgba(20,24,22,.35) 75%,rgba(20,24,22,.2)) }
.pi-copy .kicker { color:#e5a78e }.pi-copy h2{max-width:12ch}.pi-copy .lede{color:rgba(246,242,233,.67)}
.pi-questions { margin:0;padding:0;list-style:none;border-top:1px solid rgba(246,242,233,.5);background:rgba(20,24,22,.6);backdrop-filter:blur(8px) }
.pi-questions li { display:grid;grid-template-columns:40px 1fr;gap:12px;padding:16px 18px;border-bottom:1px solid var(--light-line) }
.pi-questions span { color:#e5a78e;font-family:var(--mono);font-size:8px }
.pi-questions p { margin:0;font-family:var(--serif);font-size:clamp(15px,1.35vw,21px);line-height:1.35 }

.scene-closing { display:grid;align-items:center;color:var(--paper-bright);background:var(--ink) }
.closing-image,.closing-shade { position:absolute;z-index:-2;inset:0;margin:0 }
.closing-image img { width:100%;height:100%;object-fit:cover;filter:saturate(.55) brightness(.58) }
.closing-shade { z-index:-1;background:linear-gradient(90deg,rgba(20,24,22,.94),rgba(20,24,22,.28)),linear-gradient(0deg,rgba(20,24,22,.78),transparent 60%) }
.closing-copy { max-width:760px }.closing-copy .kicker{color:#e5a78e}.closing-copy h2{max-width:13ch;font-size:clamp(42px,5.2vw,82px)}.closing-copy .lede{color:rgba(246,242,233,.72)}
.closing-path { position:absolute;right:var(--gutter);bottom:90px;left:var(--gutter);display:flex;align-items:center;gap:12px;padding:18px 0;border-top:1px solid rgba(246,242,233,.52);border-bottom:1px solid var(--light-line);background:rgba(20,24,22,.4) }
.closing-path span { white-space:nowrap;font-family:var(--mono);font-size:9px;letter-spacing:.06em }.closing-path i{flex:1;height:1px;background:var(--red)}
.closing-line { position:absolute;right:var(--gutter);bottom:38px;margin:0;color:rgba(246,242,233,.68);font-size:10px }

/* Projector readability: presentation copy is intentionally larger than web UI copy. */
@media (min-width: 861px) {
  .scene .kicker {
    font-size: 11.5px;
  }

  .scene .lede,
  .section-summary,
  .scale-summary,
  .landscape-instruction {
    font-size: 16px;
    line-height: 1.56;
  }

  .frontier-side > p,
  .execution-proof > span,
  .loop-node i,
  .process-spine article span,
  .citation-feature span,
  .retrieval-path > span,
  .route > span,
  .stage-flow article span,
  .record-original span,
  .reader-source span,
  .lifecycle-detail > div span,
  .opportunity-detail header span {
    font-size: 10.5px;
  }

  .loop-center span,
  .lens-core p,
  .retrieval-principle b,
  .scale-source-note,
  .source-table caption {
    font-size: 10.5px;
  }

  .source-node small {
    font-size: 9px;
  }

  .source-node strong {
    font-size: 12.5px;
    line-height: 1.3;
  }

  .metric-item span,
  .human-scale-image figcaption {
    font-size: 11px;
  }

  .frontier-side li {
    font-size: 14px;
  }

  .execution-proof small,
  .loop-node p,
  .process-spine article p,
  .citation-feature p,
  .retrieval-path p,
  .method-warning p,
  .route > p,
  .stage-flow article p,
  .cleaning-note p {
    font-size: 12.5px;
    line-height: 1.52;
  }

  .loop-node strong {
    font-size: 15px;
  }

  .emergence-step strong {
    font-size: 15px;
  }

  .emergence-step p {
    font-size: 12.5px;
  }

  .emergence-caveat {
    font-size: 12px;
  }

  .value-table,
  .literature-table,
  .stage-table,
  .selection-matrix,
  .validation-evidence table {
    font-size: 12px;
  }

  .value-table thead th,
  .literature-table thead th,
  .stage-table thead th,
  .selection-matrix thead th,
  .validation-evidence th {
    font-size: 10.5px;
  }

  .spectrum-source small,
  .landscape-axis,
  .coverage-axis,
  .reader-contract {
    font-size: 10px;
  }

  .spectrum-source strong {
    font-size: 14px;
  }

  .spectrum-source span,
  .lens-attachments span,
  .coverage-legend span,
  .coverage-row > span,
  .readiness-band > span,
  .readiness-threshold {
    font-size: 10.5px;
  }

  .lens-attachments p,
  .lens-instruction,
  .lens-core span,
  .coverage-reading p,
  .readiness-band p,
  .record-anatomy dd,
  .record-anatomy aside p,
  .validation-evidence > article p,
  .validation-evidence aside p,
  .schema-before p,
  .schema-after p,
  .team-roles p,
  .selection-note,
  .closing-line {
    font-size: 12px;
    line-height: 1.5;
  }

  .coverage-row strong,
  .readiness-band strong,
  .lifecycle-step strong,
  .team-core span,
  .team-roles span,
  .closing-path span {
    font-size: 12px;
  }

  .coverage-reading b,
  .record-anatomy dt,
  .record-anatomy aside b,
  .reader-output dt,
  .reader-validation span,
  .validation-evidence > article b,
  .validation-evidence aside span,
  .schema-before span,
  .schema-after span,
  .cleaning-note strong,
  .lifecycle-step small,
  .lifecycle-detail dt,
  .case-question span,
  .case-ai span,
  .case-human span,
  .case-output span,
  .opportunity-detail dt {
    font-size: 10px;
  }

  .reader-tab,
  .case-tab,
  .opportunity-tab,
  .validation-loop span,
  .route > div b,
  .stage-filter b {
    font-size: 11.5px;
  }

  .reader-source small,
  .lifecycle-key,
  .case-common,
  .opportunity-axes {
    font-size: 10px;
  }

  .case-ai p,
  .case-human p,
  .case-output p {
    font-size: 12.5px;
  }

  .selection-rules span {
    font-size: 10.5px;
  }

  .selection-rules b {
    font-size: 15px;
  }

  .selection-rules p {
    font-size: 13px;
  }
}

@media (max-width: 1120px) {
  .topbar {
    grid-template-columns: minmax(180px, 1fr) auto;
  }

  .topbar-center {
    display: none;
  }

  .scene-opening {
    grid-template-columns: minmax(0, 0.9fr) minmax(390px, 1.1fr);
  }

  .opening-image {
    left: 32%;
  }

  .source-node {
    min-width: 100px;
    max-width: 135px;
  }

  .lens-core {
    width: min(270px, 30vw);
  }
}

@media (max-width: 860px) {
  :root {
    --topbar-height: 58px;
    --gutter: clamp(18px, 5vw, 34px);
  }

  html.is-speaker {
    scroll-snap-type: none;
  }

  .topbar {
    grid-template-columns: 1fr auto;
    gap: 12px;
  }

  .brand-copy small,
  .fullscreen-control {
    display: none;
  }

  .topbar-actions {
    gap: 4px;
  }

  .mode-control button {
    width: 32px;
    min-width: 32px;
    padding: 0;
    overflow: hidden;
    font-size: 0;
  }

  .mode-control button::after {
    font-family: var(--mono);
    font-size: 9px;
  }

  body[data-language="en"] .mode-control button[data-mode-option="speaker"]::after {
    content: "S";
  }

  body[data-language="en"] .mode-control button[data-mode-option="public"]::after {
    content: "R";
  }

  body[data-language="zh"] .mode-control button[data-mode-option="speaker"]::after {
    content: "讲";
  }

  body[data-language="zh"] .mode-control button[data-mode-option="public"]::after {
    content: "读";
  }

  .brand-copy strong {
    max-width: 22ch;
    font-size: 10px;
  }

  .scene,
  body[data-mode="public"] .scene {
    min-height: auto;
    padding-top: calc(var(--topbar-height) + 44px);
    padding-bottom: 58px;
    overflow: visible;
    scroll-snap-align: none;
  }

  .scene-opening {
    min-height: 960px;
    display: block;
    background: var(--paper);
  }

  .opening-copy {
    width: 100%;
    padding-bottom: 38px;
  }

  .opening-copy h1 {
    max-width: 10ch;
  }

  .opening-image {
    position: relative;
    inset: auto;
    width: calc(100% + var(--gutter) * 2);
    height: 470px;
    margin-left: calc(var(--gutter) * -1);
  }

  .opening-image::before {
    background: linear-gradient(0deg, var(--paper) 0%, transparent 25%);
  }

  .opening-proof {
    position: relative;
    margin-top: 28px;
    grid-template-columns: 1fr;
  }

  .proof-item {
    min-height: 64px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .proof-item:last-child {
    border-bottom: 0;
  }

  .scene-opening::after,
  .opening-axis,
  .scene-footnote {
    display: none;
  }

  .scene-emergence {
    min-height: 1080px;
    display: block;
  }

  .emergence-shade {
    background: linear-gradient(0deg, rgba(20, 24, 22, 0.96) 0 45%, rgba(20, 24, 22, 0.52) 80%, rgba(20, 24, 22, 0.3));
  }

  .emergence-copy {
    min-height: 460px;
  }

  .emergence-state {
    width: 100%;
    margin-top: 30px;
    grid-template-columns: 66px 1fr;
    justify-self: auto;
  }

  .emergence-sequence {
    margin-top: 25px;
    grid-template-columns: 1fr 1fr;
  }

  .emergence-step {
    border-bottom: 1px solid var(--light-line);
  }

  .emergence-caveat {
    position: static;
    width: 100%;
    margin-top: 24px;
  }

  .lenses-heading,
  .scale-heading,
  .lens-footer {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .lens-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .lens-tab {
    border-bottom: 1px solid var(--line);
  }

  .lens-stage {
    min-height: auto;
    display: grid;
    padding: 20px;
  }

  .lens-stage::before,
  .lens-stage::after,
  .lens-lines,
  .lens-atmosphere {
    display: none;
  }

  .lens-core {
    position: relative;
    top: auto;
    left: auto;
    width: 100%;
    margin-bottom: 16px;
    transform: none;
    box-shadow: 7px 8px 0 rgba(185, 75, 55, 0.16);
    order: -1;
  }

  .lens-nodes {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .source-node {
    position: static;
    min-width: 0;
    max-width: none;
    transform: none;
    box-shadow: none;
  }

  .source-node:hover,
  .source-node:focus-visible {
    transform: none;
  }

  .scene-scale {
    min-height: 1120px;
  }

  .metric-river {
    grid-template-columns: 1fr 1fr;
  }

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

  .metric-item:last-child {
    grid-column: 1 / -1;
  }

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

  .human-scale-image {
    height: 340px;
  }
}

@media (max-width: 540px) {
  .text-control#overview-button {
    display: none;
  }

  .topbar {
    padding-right: 14px;
    padding-left: 14px;
  }

  .brand-mark {
    width: 22px;
  }

  h1 {
    font-size: clamp(42px, 14vw, 64px);
  }

  h2,
  body[data-language="en"] h2 {
    font-size: clamp(34px, 10.5vw, 52px);
  }

  .opening-image {
    height: 390px;
  }

  .emergence-sequence,
  .lens-tabs,
  .lens-nodes {
    grid-template-columns: 1fr;
  }

  .emergence-step {
    min-height: 62px;
  }

  .metric-item strong {
    font-size: clamp(28px, 10vw, 46px);
  }
}

@media (max-width: 860px) {
  .split-heading,
  .landscape-heading,
  .scale-heading,
  .coverage-reading,
  .cleaning-note {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .split-heading h2,
  .landscape-heading h2 {
    max-width: 16ch;
  }

  .frontier-figure,
  .retrieval-comparison,
  .schema-transition {
    grid-template-columns: 1fr;
  }

  .frontier-side {
    min-height: 310px;
  }

  .frontier-shift {
    min-height: 78px;
    grid-template-columns: 1fr auto auto auto 1fr;
    grid-template-rows: 1fr;
    border: 0;
    border-top: 1px solid var(--line-strong);
    border-bottom: 1px solid var(--line-strong);
  }

  .frontier-shift i {
    width: 100%;
    height: 1px;
  }

  .execution-proof {
    grid-template-columns: 1fr 1fr;
  }

  .execution-proof > span {
    grid-column: 1 / -1;
  }

  .scene-emergence {
    min-height: auto;
    display: flex;
    flex-direction: column;
    padding-top: calc(var(--topbar-height) + 42px);
    color: var(--ink);
    background: var(--paper-bright);
  }

  .emergence-copy {
    position: relative;
    z-index: 2;
    order: 1;
    display: grid;
    grid-template-columns: 1fr;
    min-height: 0;
    gap: 16px;
  }

  .emergence-copy .kicker {
    grid-column: auto;
  }

  .emergence-image {
    position: relative;
    inset: auto;
    order: 2;
    width: calc(100% + var(--gutter) * 2);
    height: 360px;
    margin: 30px 0 0 calc(var(--gutter) * -1);
  }

  .emergence-image img {
    object-fit: cover;
    object-position: center;
  }

  .emergence-shade {
    display: none;
  }

  .emergence-sequence {
    position: static;
    order: 3;
    grid-template-columns: 1fr;
    margin-top: 0;
    background: var(--paper-bright);
    backdrop-filter: none;
  }

  .emergence-step {
    min-height: 0;
    padding: 17px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .emergence-caveat {
    position: static;
    order: 4;
    width: 100%;
    margin-top: 20px;
    color: var(--muted);
  }

  .engine-loop {
    min-height: 0;
    display: grid;
    gap: 12px;
    padding: 18px 0;
  }

  .engine-loop::before {
    display: none;
  }

  .loop-center,
  .loop-node,
  .loop-node-one,
  .loop-node-two,
  .loop-node-three {
    position: static;
    width: 100%;
    transform: none;
  }

  .loop-center {
    min-height: 160px;
    border: 1px solid var(--light-line);
  }

  .value-table,
  .literature-table,
  .stage-table,
  .selection-matrix {
    display: block;
    max-width: 100%;
    overflow-x: auto;
  }

  .value-table thead,
  .value-table tbody,
  .literature-table thead,
  .literature-table tbody,
  .stage-table thead,
  .stage-table tbody,
  .selection-matrix thead,
  .selection-matrix tbody {
    min-width: 680px;
  }

  .scene-landscape {
    min-height: 1050px;
    grid-template-rows: auto 1fr auto;
    align-items: start;
  }

  .landscape-instruction {
    margin-top: 8px;
  }

  .source-spectrum {
    align-self: end;
    grid-template-columns: 1fr 1fr;
  }

  .spectrum-source {
    min-height: 105px;
    border-bottom: 1px solid var(--light-line);
  }

  .process-spine {
    grid-template-columns: 1fr;
  }

  .process-spine article {
    min-height: 200px;
    border-bottom: 1px solid var(--line);
  }

  .process-spine > i {
    display: none;
  }

  .lens-attachments {
    grid-template-columns: 1fr 1fr;
  }

  .lens-attachments p {
    grid-column: 1 / -1;
  }

  .lens-nodes {
    position: static;
    inset: auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .coverage-chart {
    display: block;
    width: 100%;
    overflow-x: auto;
    padding-bottom: 10px;
  }

  .coverage-axis,
  .coverage-row {
    min-width: 720px;
    min-height: 34px;
  }

  .coverage-axis {
    grid-template-columns: 150px repeat(6, 1fr) 170px;
  }

  .coverage-row {
    grid-template-columns: 150px 1fr 170px;
  }

  .gap-marker,
  .point-gap {
    display: none;
  }

  .scene-readiness {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto auto;
    align-items: start;
  }

  .readiness-human-image {
    height: 420px;
  }

  .bibliography-field,
  .route-field,
  .stage-flow,
  .record-anatomy,
  .reader-workbench,
  .validation-evidence,
  .lifecycle-detail,
  .opportunity-detail {
    grid-template-columns: 1fr;
  }

  .citation-feature,
  .route,
  .stage-flow article {
    min-height: 250px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .retrieval-path {
    min-height: 280px;
  }

  .retrieval-principle {
    min-height: 120px;
  }

  .stage-filter {
    min-height: 90px;
    grid-template-columns: 1fr auto 1fr;
    grid-template-rows: 1fr;
  }

  .stage-filter i {
    width: 100%;
    height: 1px;
  }

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

  .record-original {
    border-right: 0;
    border-bottom: 1px solid var(--line-strong);
  }

  .record-anatomy aside {
    grid-template-columns: 1fr;
  }

  .scene-reader {
    grid-template-rows: auto auto auto auto;
  }

  .reader-tabs,
  .lifecycle-steps,
  .case-tabs,
  .opportunity-tabs {
    overflow-x: auto;
  }

  .reader-tab,
  .lifecycle-step,
  .case-tab,
  .opportunity-tab {
    min-width: 145px;
    flex: 0 0 145px;
  }

  .reader-source,
  .reader-output {
    min-height: 320px;
    border-right: 0;
    border-bottom: 1px solid var(--line-strong);
  }

  .validation-loop {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }

  .validation-loop i {
    display: none;
  }

  .validation-evidence > article,
  .validation-evidence aside {
    min-height: 220px;
  }

  .validation-evidence aside {
    padding: 22px;
    border: 1px solid var(--light-line);
  }

  .schema-before,
  .schema-after {
    min-height: 280px;
  }

  .schema-arrow {
    min-height: 80px;
    grid-template-columns: 1fr auto 1fr;
    grid-template-rows: 1fr;
  }

  .schema-arrow i {
    width: 100%;
    height: 1px;
  }

  .lifecycle-steps {
    grid-template-columns: repeat(7, 145px);
  }

  .lifecycle-detail {
    gap: 22px;
  }

  .lifecycle-key {
    flex-wrap: wrap;
  }

  .case-stage {
    min-height: 0;
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }

  .case-visual,
  .case-human-image {
    grid-column: auto;
    grid-row: auto;
    min-height: 250px;
    height: 250px;
    border-right: 0;
  }

  .scene-team,
  .scene-pi-ask {
    min-height: 980px;
    grid-template-columns: 1fr;
    align-content: center;
  }

  .team-core {
    position: static;
    width: 100%;
  }

  .team-roles {
    grid-template-columns: 1fr;
  }

  .opportunity-detail dl {
    grid-template-columns: 1fr;
  }

  .opportunity-detail dl div {
    border-left: 0;
  }

  .opportunity-controls,
  .opportunity-tabs {
    grid-template-columns: 1fr 1fr;
  }

  .opportunity-controls label:nth-child(2n),
  .opportunity-tab:nth-child(2n) {
    border-right: 0;
  }

  .selection-rules {
    grid-template-columns: 1fr 1fr;
  }

  .selection-decision {
    grid-template-columns: 1fr;
  }

  .selection-decision ol {
    grid-template-columns: 1fr;
  }

  .pi-questions li {
    grid-template-columns: 30px 1fr;
  }

  .scene-closing {
    min-height: 900px;
    align-content: center;
  }

  .closing-path,
  .closing-line {
    position: static;
  }

  .closing-path {
    display: grid;
    grid-template-columns: 1fr;
    margin-top: 38px;
  }

  .closing-path i {
    display: none;
  }

  .closing-line {
    margin-top: 24px;
  }
}

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

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

@media print {
  @page {
    size: 16in 9in;
    margin: 0;
  }

  body::before,
  .topbar,
  .progress-track,
  .overview-panel,
  .drawer-scrim,
  .evidence-drawer {
    display: none !important;
  }

  .scene,
  body[data-mode="public"] .scene {
    min-height: 9in;
    height: 9in;
    padding: 0.62in 0.72in;
    overflow: hidden;
    break-after: page;
    page-break-after: always;
  }

  .opening-image {
    top: 0;
  }

  .source-table {
    font-size: 8px;
  }
}