:root {
  color-scheme: dark;
  --canvas: #08090a;
  --surface: #0d0e10;
  --surface-raised: #111214;
  --surface-quiet: #151619;
  --surface-hover: #191a1e;
  --text: #f2f2f3;
  --text-faint: #6f747d;
  --muted: #8a8f98;
  --muted-strong: #b5b8be;
  --hairline: rgba(255, 255, 255, 0.09);
  --hairline-strong: rgba(255, 255, 255, 0.16);
  --complete: #59c98d;
  --partial: #d8b15c;
  --interactive: #9d8cff;
  --sticky-nav-height: 64px;
  --page-padding: clamp(24px, 4.6vw, 64px);
  --page-width: 1280px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --ease-out: cubic-bezier(0.2, 0.8, 0.2, 1);
  --curtain-ease: cubic-bezier(0.4, 0, 0.6, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: auto;
  background: var(--canvas);
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--canvas);
  color: var(--text);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 2px solid var(--interactive);
  outline-offset: 3px;
}

::selection {
  background: #37315b;
  color: var(--text);
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  transform: translateY(-150%);
  padding: 9px 13px;
  border-radius: var(--radius-sm);
  background: var(--text);
  color: var(--canvas);
  font-weight: 700;
  transition: transform 120ms var(--ease-out);
}

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

.page-shell {
  width: min(var(--page-width), calc(100% - (var(--page-padding) * 2)));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  height: calc(var(--sticky-nav-height) + env(safe-area-inset-top));
  padding-top: env(safe-area-inset-top);
  border-bottom: 1px solid var(--hairline);
  background: var(--canvas);
}

.header-inner {
  display: grid;
  grid-template-columns: minmax(84px, 1fr) auto minmax(190px, 1fr);
  width: min(100%, 1440px);
  height: var(--sticky-nav-height);
  margin-inline: auto;
  padding-inline: clamp(20px, 3vw, 44px);
}

.edge-nav {
  position: relative;
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
  transition: color 120ms var(--ease-out), background-color 120ms var(--ease-out);
}

.edge-nav::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 2px;
  background: var(--text);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 120ms var(--ease-out);
}

.edge-nav__dot {
  width: 5px;
  height: 5px;
  flex: 0 0 auto;
  border: 1px solid currentColor;
  border-radius: 50%;
}

.edge-nav:hover,
.edge-nav.is-current,
.edge-nav[aria-current] {
  color: var(--text);
}

.edge-nav.is-current::after,
.edge-nav[aria-current]::after {
  transform: scaleX(1);
}

.edge-nav.is-current .edge-nav__dot,
.edge-nav[aria-current] .edge-nav__dot {
  border-color: var(--text);
  background: var(--text);
}

.wordmark {
  width: max-content;
  align-self: stretch;
}

.header-cta {
  width: max-content;
  justify-self: end;
  align-self: stretch;
}

.header-cta__short {
  display: none;
}

.process-nav {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  height: 100%;
}

.process-nav__item {
  display: grid;
  min-width: 0;
  height: 100%;
  grid-template-columns: minmax(0, 1fr) 28px;
  transition: background-color 120ms var(--ease-out);
}

.process-nav__item:hover,
.process-nav__item:focus-within,
.process-nav__item.is-expanded {
  background: rgba(255, 255, 255, 0.025);
}

.process-nav__link {
  position: relative;
  display: inline-flex;
  min-width: 104px;
  min-height: 44px;
  padding: 0 4px 0 11px;
  align-items: center;
  justify-content: center;
  gap: 7px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
  transition: color 120ms var(--ease-out), background-color 120ms var(--ease-out);
}

.process-nav__link::before {
  content: "";
  width: 5px;
  height: 5px;
  flex: 0 0 auto;
  border: 1px solid currentColor;
  border-radius: 50%;
}

.process-nav__link::after {
  content: "";
  position: absolute;
  right: 12px;
  bottom: -1px;
  left: 12px;
  height: 2px;
  background: var(--text);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 120ms var(--ease-out);
}

.process-nav__link:hover,
.process-nav__link:focus-visible {
  color: var(--text);
}

.process-nav__link:focus-visible,
.process-nav__toggle:focus-visible,
.edge-nav:focus-visible {
  outline: 0;
  box-shadow: inset 0 0 0 2px var(--interactive);
}

.process-nav__toggle {
  position: relative;
  display: inline-flex;
  min-width: 28px;
  min-height: 44px;
  padding: 0;
  align-items: center;
  justify-content: center;
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}

.process-nav__toggle span {
  width: 6px;
  height: 6px;
  border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
  transition: transform 160ms var(--ease-out), color 120ms var(--ease-out);
}

.process-nav__toggle:hover,
.process-nav__toggle[aria-expanded="true"] {
  color: var(--text);
}

.process-nav__toggle[aria-expanded="true"] span {
  transform: translateY(2px) rotate(225deg);
}

.process-nav__link.is-current,
.process-nav__link[aria-current="step"] {
  color: var(--text);
}

.process-nav__link.is-current::before,
.process-nav__link[aria-current="step"]::before {
  border-color: var(--text);
  background: var(--text);
}

.process-nav__link.is-current::after,
.process-nav__link[aria-current="step"]::after {
  transform: scaleX(1);
}

.process-nav__number,
.stage__index span,
.case-status {
  font-variant-numeric: tabular-nums;
}

.process-nav__number,
.stage__index span {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

.process-nav__copy {
  display: grid;
  place-items: center;
}

.process-nav__term,
.process-nav__plain {
  grid-area: 1 / 1;
  transition: opacity 120ms var(--ease-out), transform 120ms var(--ease-out);
}

.process-nav__plain {
  opacity: 0;
  transform: translateY(3px);
}

.process-nav__link:focus-visible .process-nav__term {
  opacity: 0;
  transform: translateY(-3px);
}

.process-nav__link:focus-visible .process-nav__plain {
  opacity: 1;
  transform: translateY(0);
}

.process-nav__item.is-expanded .process-nav__term {
  opacity: 0;
  transform: translateY(-3px);
}

.process-nav__item.is-expanded .process-nav__plain {
  opacity: 1;
  transform: translateY(0);
}

@media (hover: hover) and (pointer: fine) {
  .process-nav__item:hover .process-nav__term {
    opacity: 0;
    transform: translateY(-3px);
  }

  .process-nav__item:hover .process-nav__plain {
    opacity: 1;
    transform: translateY(0);
  }
}

.case-curtain {
  --curtain-height: 0px;
  position: fixed;
  z-index: 90;
  top: calc(var(--sticky-nav-height) + env(safe-area-inset-top));
  right: 0;
  left: 0;
  height: 0;
  overflow: hidden;
  visibility: hidden;
  border-bottom: 1px solid transparent;
  background: #0b0c0e;
  transition: height 250ms var(--curtain-ease), visibility 0s linear 250ms, border-color 120ms ease;
}

.case-curtain.is-open {
  height: min(var(--curtain-height), calc(100svh - var(--sticky-nav-height)));
  visibility: visible;
  border-bottom-color: var(--hairline-strong);
  transition: height 250ms var(--curtain-ease), visibility 0s, border-color 120ms ease;
}

.case-curtain__inner {
  display: grid;
  padding-block: 28px;
  grid-template-columns: minmax(260px, 0.78fr) minmax(0, 1.22fr);
  gap: clamp(44px, 7vw, 96px);
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity 170ms ease, transform 170ms ease;
}

.case-curtain.is-open .case-curtain__inner {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 72ms;
}

.case-curtain.is-open.is-switching .case-curtain__inner {
  opacity: 0;
  transform: none;
  transition: opacity 125ms var(--curtain-ease);
  transition-delay: 0s;
}

.case-curtain.is-open.is-switching.is-fading-in .case-curtain__inner {
  opacity: 1;
}

.case-curtain.is-measuring {
  top: -10000px;
  height: auto;
  overflow: visible;
  visibility: hidden;
  pointer-events: none;
  transition: none;
}

.case-curtain.is-measuring .case-curtain__inner {
  opacity: 1;
  transform: none;
  transition: none;
}

.case-curtain__eyebrow,
.case-curtain__cases-header p,
.case-curtain__case-type,
.case-curtain__case-state {
  margin: 0;
  color: var(--muted);
  font-size: 10px;
  font-weight: 650;
  letter-spacing: 0.08em;
}

.case-curtain__intro h2 {
  max-width: 470px;
  margin: 12px 0 0;
  font-size: clamp(28px, 2.6vw, 38px);
  font-weight: 630;
  letter-spacing: -0.04em;
  line-height: 1.08;
}

.case-curtain__intro > p:last-of-type {
  max-width: 50ch;
  margin: 12px 0 0;
  color: var(--muted-strong);
  font-size: 12px;
  line-height: 1.55;
}

.case-curtain__overview {
  display: inline-flex;
  min-height: 44px;
  margin-top: 13px;
  align-items: center;
  gap: 9px;
  font-size: 12px;
  font-weight: 680;
}

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

.case-curtain__cases-header {
  display: flex;
  min-height: 28px;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.case-curtain__list {
  display: grid;
  gap: 7px;
}

.case-curtain__case {
  display: grid;
  min-height: 82px;
  padding: 12px 14px;
  grid-template-columns: 76px minmax(0, 1fr) auto;
  align-items: center;
  gap: 13px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  background: var(--surface-raised);
  transition: border-color 120ms var(--ease-out), background-color 120ms var(--ease-out);
}

.case-curtain__case[href]:hover,
.case-curtain__case[href]:focus-visible {
  border-color: var(--hairline-strong);
  background: var(--surface-quiet);
}

.case-curtain__case.is-locked {
  color: var(--muted-strong);
}

.case-curtain__case-copy {
  display: grid;
  min-width: 0;
  gap: 3px;
}

.case-curtain__case-copy strong {
  overflow: hidden;
  font-size: 13px;
  font-weight: 680;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.case-curtain__case-copy span {
  display: -webkit-box;
  overflow: hidden;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.4;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.case-curtain__case-state {
  min-width: 72px;
  padding-left: 12px;
  border-left: 1px solid var(--hairline);
  letter-spacing: 0;
  text-align: right;
  white-space: nowrap;
}

.case-curtain__case-state.is-actionable {
  font-weight: 800;
}

.case-curtain-backdrop {
  position: fixed;
  z-index: 80;
  inset: calc(var(--sticky-nav-height) + env(safe-area-inset-top)) 0 0;
  width: 100%;
  border: 0;
  pointer-events: none;
  opacity: 0;
  background: rgba(8, 9, 10, 0.42);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: opacity 320ms var(--curtain-ease) 80ms;
}

.case-curtain-backdrop.is-open {
  pointer-events: auto;
  opacity: 1;
}

.screen {
  height: calc(100svh - var(--sticky-nav-height));
  min-height: 0;
  scroll-margin-top: calc(var(--sticky-nav-height) + env(safe-area-inset-top));
  border-bottom: 1px solid var(--hairline);
}

.hero {
  position: relative;
  isolation: isolate;
}

.hero-renders,
.hero-render,
.hero-shade {
  position: absolute;
  inset: 0;
}

.hero-renders {
  z-index: -3;
  background: var(--canvas);
}

.hero-render {
  background-position: center;
  background-size: cover;
  opacity: 0;
  transition: opacity 1600ms var(--ease-out);
}

.hero-render.is-ready.is-active {
  opacity: 0.9;
}

.hero-shade {
  z-index: -2;
  background:
    linear-gradient(90deg, rgba(8, 9, 10, 0.8) 0%, rgba(8, 9, 10, 0.7) 52%, rgba(8, 9, 10, 0.38) 76%, rgba(8, 9, 10, 0.3) 100%),
    linear-gradient(180deg, rgba(8, 9, 10, 0.18) 0%, rgba(8, 9, 10, 0.36) 100%);
  pointer-events: none;
}

.hero__inner {
  display: flex;
  height: 100%;
  padding-block: clamp(40px, 6.2vh, 68px) clamp(28px, 4.5vh, 48px);
  flex-direction: column;
  justify-content: space-between;
  align-items: flex-start;
}

.hero__copy {
  max-width: 1100px;
}

.eyebrow {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  font-weight: 680;
  letter-spacing: 0.12em;
  line-height: 1.4;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 1050px;
  margin: 18px 0 0;
  font-size: clamp(58px, 6.25vw, 90px);
  font-weight: 630;
  letter-spacing: -0.06em;
  line-height: 0.98;
}

.hero h1 span {
  color: #ffffff;
}

.hero-title__line {
  display: block;
  width: fit-content;
  white-space: nowrap;
}

.hero-title__line--accent {
  margin-top: 0.05em;
}

.hero__lede {
  max-width: 760px;
  margin: 20px 0 0;
  color: var(--muted-strong);
  font-size: clamp(16px, 1.45vw, 19px);
  line-height: 1.65;
}

.primary-cta {
  display: inline-flex;
  min-height: 48px;
  margin-top: 26px;
  padding: 0 20px;
  align-items: center;
  justify-content: center;
  gap: 13px;
  border: 1px solid var(--text);
  border-radius: var(--radius-sm);
  background: var(--text);
  color: var(--canvas);
  font-size: 14px;
  font-weight: 720;
  line-height: 1;
  transition: background-color 120ms var(--ease-out), transform 120ms var(--ease-out);
}

.primary-cta:hover {
  background: #dcdde0;
  border-color: #dcdde0;
}

.primary-cta:active {
  transform: translateY(1px);
}

.stage:nth-of-type(odd) {
  background: var(--surface);
}

.stage__inner {
  display: grid;
  height: 100%;
  padding-block: clamp(24px, 4vh, 42px);
  grid-template-rows: auto auto auto auto;
  align-content: center;
  gap: clamp(14px, 2.2vh, 22px);
}

.stage__header {
  display: grid;
  grid-template-columns: minmax(160px, 0.34fr) minmax(0, 1fr);
  gap: clamp(32px, 6vw, 86px);
  align-items: start;
}

.stage__index {
  display: flex;
  margin: 5px 0 0;
  align-items: center;
  gap: 11px;
  color: var(--muted-strong);
  font-size: 12px;
  font-weight: 650;
}

.stage__index span {
  display: inline-flex;
  width: 34px;
  height: 22px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--hairline-strong);
  border-radius: 999px;
  color: var(--text);
  font-size: 10px;
}

.stage__header h2 {
  margin: 0;
  font-size: clamp(36px, 4vw, 54px);
  font-weight: 630;
  letter-spacing: -0.045em;
  line-height: 1.08;
  text-wrap: balance;
}

.stage__header div > p {
  max-width: 760px;
  margin: 12px 0 0;
  color: var(--muted-strong);
  font-size: 15px;
  line-height: 1.55;
}

.stage__footer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  min-height: 44px;
  align-items: center;
}

.stage__footer > .stage-next:only-child {
  grid-column: 2;
  justify-self: end;
}

.stage-next {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 9px;
  color: var(--text);
  font-size: 12px;
  font-weight: 650;
  white-space: nowrap;
}

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

.contact__inner {
  display: flex;
  height: 100%;
  padding-block: clamp(40px, 8vh, 74px) 22px;
  flex-direction: column;
  justify-content: space-between;
}

.contact__stage {
  display: grid;
  width: 100%;
  margin-block: auto;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(36px, 5vw, 72px);
  align-items: center;
}

.contact__copy {
  position: relative;
  z-index: 2;
  min-width: 0;
}

.contact h2 {
  max-width: 940px;
  margin: 18px 0 0;
  font-size: clamp(44px, 5.2vw, 70px);
  font-weight: 630;
  letter-spacing: -0.05em;
  line-height: 1.08;
  text-wrap: balance;
}

.contact__copy > p:not(.eyebrow) {
  max-width: 700px;
  margin: 22px 0 0;
  color: var(--muted-strong);
  font-size: 16px;
}

.contact__portrait {
  position: relative;
  z-index: 1;
  width: auto;
  height: clamp(330px, 44vh, 400px);
  aspect-ratio: 1122 / 1402;
  margin: 0;
  justify-self: center;
  overflow: hidden;
  opacity: 0;
  filter: saturate(0.58) contrast(0.8) brightness(0.72) sepia(0.08);
  transform: translateX(42px);
  transition: opacity 2000ms linear, transform 2000ms cubic-bezier(.22, 1, .36, 1);
  will-change: opacity, transform;
  pointer-events: none;
  -webkit-mask-image: radial-gradient(ellipse 72% 84% at 50% 50%, #000 0 56%, rgba(0, 0, 0, .92) 68%, transparent 100%);
  mask-image: radial-gradient(ellipse 72% 84% at 50% 50%, #000 0 56%, rgba(0, 0, 0, .92) 68%, transparent 100%);
}

.contact__portrait::after {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 82% at 50% 50%, transparent 46%, rgba(8, 9, 10, .2) 70%, #08090a 100%);
  content: "";
}

.contact__portrait img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.contact__portrait[data-contact-portrait-state="entering"],
.contact__portrait[data-contact-portrait-state="visible"] {
  opacity: .68;
  transform: translateX(0);
}

.contact__position strong,
.contact__position span {
  display: block;
}

.contact__position strong {
  color: var(--text);
  font-weight: 650;
}

.contact__position span {
  margin-top: 6px;
}

.contact__actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.contact__details {
  display: flex;
  margin-top: 26px;
  align-items: center;
  gap: 16px;
}

.contact__detail {
  display: inline-flex;
  min-height: 44px;
  padding: 0;
  align-items: center;
  border: 0;
  background: none;
  color: var(--muted);
  cursor: copy;
  font-family: inherit;
  font-size: 13px;
  white-space: nowrap;
}

.contact__detail:hover,
.contact__detail:focus-visible,
.contact__detail[data-copy-state="copied"] {
  color: var(--text);
}

.contact__detail[data-copy-state="error"] {
  color: #ff8a8a;
}

.contact__footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  color: var(--muted);
  font-size: 10px;
}

@media (max-width: 1040px) {
  :root {
    --page-padding: 30px;
  }

  .header-inner {
    grid-template-columns: 74px minmax(0, 1fr) 164px;
    padding-inline: 24px;
  }

  .process-nav__link {
    min-width: 0;
    padding-inline: 7px;
    font-size: 11px;
  }

  .stage__header {
    grid-template-columns: 140px minmax(0, 1fr);
    gap: 36px;
  }
}

@media (max-height: 820px) and (min-width: 761px) {
  .hero__inner {
    padding-block: 38px 26px;
  }

  .hero h1 {
    margin-top: 12px;
    font-size: clamp(52px, 5.5vw, 70px);
  }

  .hero__lede {
    margin-top: 15px;
  }

  .primary-cta {
    margin-top: 18px;
  }

  .stage__inner {
    padding-block: 22px;
    gap: 13px;
  }

  .stage__header h2 {
    font-size: clamp(34px, 3.7vw, 44px);
  }

  .stage__header div > p {
    margin-top: 8px;
    font-size: 14px;
  }

}

@media (max-width: 760px) {
  :root {
    --page-padding: 20px;
  }

  .header-inner {
    grid-template-columns: 1fr 4fr 1fr;
    padding: 0;
  }

  .edge-nav {
    min-width: 0;
    padding: 5px 2px;
    flex-direction: column;
    justify-content: center;
    gap: 3px;
    font-size: 10px;
    line-height: 1.15;
    text-align: center;
  }

  .edge-nav::after {
    right: 5px;
    left: 5px;
  }

  .edge-nav__dot {
    width: 4px;
    height: 4px;
  }

  .wordmark,
  .header-cta {
    width: auto;
  }

  .header-cta {
    justify-self: stretch;
  }

  .header-cta__full {
    display: none;
  }

  .header-cta__short {
    display: inline;
  }

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

  .process-nav__toggle {
    display: none !important;
  }

  .process-nav__link {
    min-width: 0;
    min-height: 64px;
    padding: 5px 1px;
    flex-direction: column;
    gap: 2px;
    font-size: 9.5px;
    line-height: 1.12;
    white-space: normal;
    text-align: center;
  }

  .process-nav__link::before {
    position: absolute;
    top: 11px;
    left: 50%;
    width: 4px;
    height: 4px;
    transform: translateX(-22px);
  }

  .process-nav__link::after {
    right: 5px;
    left: 5px;
  }

  .process-nav__number {
    font-size: 8px;
  }

  .process-nav__copy {
    min-height: 20px;
    place-items: start center;
  }

  .process-nav__term {
    letter-spacing: -0.08em;
  }

  .hero__inner {
    padding-block: 30px 20px;
  }

  .hero-shade {
    background:
      linear-gradient(180deg, rgba(8, 9, 10, 0.82) 0%, rgba(8, 9, 10, 0.7) 48%, rgba(8, 9, 10, 0.38) 72%, rgba(8, 9, 10, 0.34) 100%),
      linear-gradient(90deg, rgba(8, 9, 10, 0.22) 0%, rgba(8, 9, 10, 0.12) 100%);
  }

  .hero h1 {
    margin-top: 15px;
    font-size: clamp(36px, 11vw, 48px);
    letter-spacing: -0.05em;
    line-height: 1;
  }

  .hero h1 br,
  .contact h2 br {
    display: none;
  }

  .hero__lede {
    margin-top: 17px;
    font-size: 14px;
    line-height: 1.6;
  }

  .primary-cta {
    width: 100%;
    min-height: 48px;
    margin-top: 20px;
  }

  .stage__inner {
    padding-block: 16px;
    gap: 10px;
  }

  .stage__header {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .stage__index {
    margin: 0;
    font-size: 11px;
  }

  .stage__header h2 {
    font-size: clamp(31px, 8.6vw, 36px);
    letter-spacing: -0.04em;
  }

  .stage__header div > p {
    margin-top: 7px;
    font-size: 13px;
    line-height: 1.45;
  }

  .stage__footer {
    gap: 10px;
    min-height: 42px;
  }

  .stage-next {
    min-height: 42px;
    font-size: 10px;
  }

  .contact__inner {
    padding-block: 34px 16px;
  }

  .contact h2 {
    font-size: clamp(38px, 10.2vw, 45px);
  }

  .contact h2 br {
    display: block;
  }

  .contact__copy > p:not(.eyebrow) {
    margin-top: 18px;
    font-size: 14px;
    line-height: 1.55;
  }

  .contact__stage {
    display: block;
  }

  .contact__portrait {
    display: none;
  }

  .contact__actions {
    display: grid;
    gap: 6px;
  }

  .contact__details {
    margin-top: 0;
    justify-content: center;
    gap: 14px;
  }

  .contact__detail {
    min-height: 44px;
    justify-content: center;
    font-size: 11px;
  }

  .contact__footer {
    flex-direction: column;
    gap: 3px;
    font-size: 9px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .contact__portrait {
    transform: none;
    transition: opacity 2000ms linear;
  }
}

@media (hover: none), (pointer: coarse) {
  .contact__portrait {
    display: none;
  }
}

@media (max-width: 380px) {
  .process-nav__link {
    font-size: 8.8px;
  }

  .hero h1 {
    font-size: 37px;
  }

  .stage__header h2 {
    font-size: 30px;
  }

  .contact h2 {
    font-size: clamp(31px, 9.4vw, 35px);
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-delay: 0s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0s !important;
  }
}

/* Four chapter scenes ----------------------------------------------------- */

.screen {
  height: calc(100svh - var(--sticky-nav-height) - env(safe-area-inset-top));
}

.case-curtain.is-open {
  height: min(var(--curtain-height), calc(100svh - var(--sticky-nav-height) - env(safe-area-inset-top)));
}

.case-curtain__inner {
  padding-block: 28px;
}

.case-curtain__cases-header {
  min-height: 24px;
}

.case-curtain__list {
  gap: 5px;
}

.case-curtain__case {
  min-height: 58px;
  padding: 8px 12px;
}

@media (max-width: 760px) {
  .case-curtain.is-open {
    overflow-y: auto;
    overscroll-behavior: contain;
  }

  .case-curtain__inner {
    padding-block: 20px;
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .case-curtain__intro h2 {
    margin-top: 8px;
    font-size: clamp(24px, 7.2vw, 29px);
  }

  .case-curtain__intro > p:last-of-type {
    margin-top: 8px;
    font-size: 11px;
    line-height: 1.45;
  }

  .case-curtain__overview {
    min-height: 44px;
    margin-top: 6px;
  }

  .case-curtain__cases-header {
    min-height: 18px;
  }

  .case-curtain__case {
    min-height: 72px;
    padding: 10px 12px;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
      "type state"
      "copy copy";
    align-items: start;
    column-gap: 10px;
    row-gap: 6px;
  }

  .case-curtain__case-type {
    grid-area: type;
  }

  .case-curtain__case-copy {
    grid-area: copy;
  }

  .case-curtain__case-state {
    min-width: 0;
    padding-left: 0;
    grid-area: state;
    border-left: 0;
  }

  .case-curtain__case-copy strong {
    white-space: normal;
  }
}

.chapter-page__inner {
  grid-template-rows: auto auto auto auto;
  padding-block: clamp(18px, 3.2vh, 32px);
  align-content: center;
  gap: clamp(10px, 1.6vh, 15px);
}

.chapter-page .stage__header h2 {
  font-size: clamp(34px, 3.55vw, 48px);
}

.chapter-page .stage__header div > p {
  margin-top: 8px;
  font-size: 14px;
}

.chapter-scene {
  position: relative;
  display: grid;
  width: 100%;
  height: clamp(276px, 33vh, 304px);
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-md);
  background: #0b0c0e;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.22);
}

.chapter-scene button,
.chapter-scene input {
  font: inherit;
}

.chapter-scene button {
  border: 0;
  color: inherit;
  cursor: pointer;
}

.scene-label {
  display: flex;
  min-height: 22px;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.scene-label span,
.same-output-anchor > span,
.compression-number span {
  color: var(--muted-strong);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.scene-label small,
.same-output-anchor small {
  color: var(--muted);
  font-size: 10px;
  line-height: 1.35;
}

.scene-primary-action {
  min-width: 0;
}

.scene-action-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-size: 12px;
  font-weight: 700;
}

.scene-action-link[href]:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.scene-action-link.is-locked {
  color: var(--muted);
}

/* 01–04 · one shared bottom-right continuation contract */
.has-chapter-dual-entry {
  position: relative;
  padding-bottom: max(74px, calc(3.2vh + 52px));
}

.chapter-dual-entry {
  position: absolute;
  z-index: 12;
  right: 0;
  bottom: max(12px, env(safe-area-inset-bottom));
  display: flex;
  max-width: 100%;
  min-width: 0;
  min-height: 44px;
  align-items: center;
  justify-content: flex-end;
  color: var(--text);
  pointer-events: auto;
}

.chapter-dual-entry__asset {
  display: flex;
  min-width: 0;
  padding-right: 16px;
  align-items: center;
  border-right: 1px solid var(--hairline-strong);
}

.chapter-dual-entry .scene-action-link,
.chapter-dual-entry__contact {
  min-width: 0;
  min-height: 44px;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-size: 11.5px;
  font-weight: 680;
  line-height: 1.25;
  text-decoration: none;
  white-space: nowrap;
}

.chapter-dual-entry .scene-action-link {
  display: inline-flex;
  padding: 0 14px;
  border-radius: 9px;
  background: #fff;
  color: #0d0e10;
}

.chapter-dual-entry .scene-action-link.is-locked {
  color: #0d0e10;
  font-weight: 560;
}

.chapter-dual-entry__contact {
  display: inline-flex;
  padding-left: 16px;
}

.chapter-dual-entry .scene-action-link[href]:hover,
.chapter-dual-entry__contact:hover {
  color: var(--interactive);
  text-decoration: none;
}

.chapter-dual-entry .scene-action-link[href]:hover {
  background: #f0f0f2;
  color: #0d0e10;
}

.chapter-dual-entry .scene-action-link[href]:focus-visible,
.chapter-dual-entry__contact:focus-visible {
  outline: 2px solid var(--interactive);
  outline-offset: 3px;
}

@media (max-width: 760px) {
  .has-chapter-dual-entry {
    padding-bottom: max(62px, calc(env(safe-area-inset-bottom) + 54px));
  }

  .chapter-dual-entry__asset {
    padding-right: 10px;
  }

  .chapter-dual-entry .scene-action-link,
  .chapter-dual-entry__contact {
    gap: 5px;
    font-size: 9.5px;
  }

  .chapter-dual-entry__contact {
    padding-left: 10px;
  }
}

/* 01 · Compress candidates */

.signal-compression-scene {
  grid-template-columns: minmax(0, 24fr) minmax(380px, 44fr) minmax(260px, 32fr);
}

.candidate-pool,
.decision-gate,
.priority-list {
  min-width: 0;
  padding: 14px 15px;
}

.candidate-pool,
.decision-gate {
  border-right: 1px solid var(--hairline);
}

.candidate-pool {
  display: flex;
  flex-direction: column;
  background: #0d0e10;
}

.compression-number {
  display: flex;
  margin-top: 18px;
  align-items: baseline;
  gap: 9px;
}

.compression-number strong {
  font-size: clamp(38px, 3.6vw, 52px);
  font-weight: 620;
  letter-spacing: -0.06em;
  line-height: 0.94;
}

.compression-number small {
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
}

.candidate-pool__signals {
  display: grid;
  margin-top: 18px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
}

.candidate-pool__signals span {
  display: flex;
  min-height: 34px;
  padding: 6px 8px;
  align-items: center;
  border: 1px solid var(--hairline);
  border-radius: 6px;
  background: var(--surface-raised);
  color: var(--text-faint);
  font-size: 10px;
  transition: color 140ms var(--ease-out), border-color 140ms var(--ease-out), background-color 140ms var(--ease-out);
}

.candidate-pool__signals span.is-related {
  border-color: var(--hairline-strong);
  background: #17151f;
  color: var(--text);
}

.candidate-pool > p {
  margin: auto 0 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.45;
}

.decision-gate {
  display: grid;
  grid-template-rows: auto auto 1fr;
  gap: 10px;
}

.decision-gate__summary {
  display: grid;
  grid-template-columns: minmax(112px, 0.72fr) minmax(0, 1.28fr);
  gap: 8px;
}

.compression-number--middle {
  min-height: 72px;
  margin: 0;
  padding: 9px 11px;
  align-items: end;
  border: 1px solid var(--hairline-strong);
  border-radius: 7px;
  background: var(--surface-raised);
}

.compression-number--middle strong {
  font-size: 34px;
}

.compression-number--middle span {
  align-self: center;
  font-size: 9px;
  letter-spacing: 0;
  text-transform: none;
}

.judgment-lens__controls {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
}

.judgment-lens__controls button {
  display: flex;
  min-height: 46px;
  padding: 8px 10px;
  align-items: center;
  gap: 9px;
  border: 1px solid var(--hairline);
  border-radius: 7px;
  background: var(--surface-raised);
  color: var(--muted-strong);
  font-size: 11px;
  text-align: left;
}

.judgment-lens__controls button b {
  color: var(--text-faint);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 9px;
}

.judgment-lens__controls button[aria-pressed="true"] {
  border-color: var(--interactive);
  background: #171520;
  color: var(--text);
}

.judgment-lens__result {
  display: grid;
  min-height: 72px;
  padding: 10px 12px;
  align-content: center;
  gap: 3px;
  border-left: 2px solid var(--interactive);
  background: var(--surface);
}

.judgment-lens__result span,
.priority-list__top span {
  color: var(--muted);
  font-size: 10px;
}

.judgment-lens__result strong,
.priority-list__top strong {
  font-size: 12px;
  font-weight: 650;
  line-height: 1.4;
}

.priority-list {
  display: flex;
  flex-direction: column;
}

.priority-list__top {
  display: flex;
  min-height: 78px;
  margin-top: 14px;
  padding: 11px 12px;
  flex-direction: column;
  justify-content: center;
  border: 1px solid var(--hairline-strong);
  border-radius: 8px;
  background: var(--surface-raised);
}

.priority-list__top strong {
  font-size: 24px;
  letter-spacing: -0.04em;
}

.priority-list__states {
  display: grid;
  margin-top: 8px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 5px;
}

.priority-list__states span {
  display: flex;
  min-height: 30px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  color: var(--muted-strong);
  font-size: 9px;
}

.priority-list__states span:last-child {
  border-color: var(--interactive);
  color: var(--text);
}

.scene-claim {
  margin: 9px 0 0;
  color: var(--text);
  font-size: 11px;
  font-weight: 650;
  line-height: 1.45;
}

.priority-list .scene-primary-action {
  margin-top: auto;
}

/* 02 · Two registered editing tracks. Track-first DOM replaces the retired column-first scene above. */

#explain .adaptation-spread {
  height: clamp(324px, 41vh, 372px);
  overflow: hidden;
}

#explain .adaptation-spread__surface {
  display: grid;
  width: 100%;
  height: 100%;
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: 26px repeat(2, minmax(0, 1fr));
  row-gap: 8px;
  overflow: hidden;
  border: 0;
  background: transparent;
  clip-path: none;
}

#explain .adaptation-spread__surface::after {
  display: none;
}

#explain .adaptation-column-heads,
#explain .adaptation-track {
  display: grid;
  min-width: 0;
  min-height: 0;
  grid-template-columns: minmax(0, 32fr) minmax(184px, 20fr) minmax(0, 48fr);
  column-gap: 12px;
}

#explain .adaptation-column-head,
#explain .adaptation-track__cell,
#explain .adaptation-raw-document,
#explain .adaptation-raw-catalog,
#explain .adaptation-target-document,
#explain .adaptation-buyer-product {
  min-width: 0;
  min-height: 0;
}

#explain .adaptation-column-head {
  display: flex;
  padding: 5px 12px 4px;
  align-items: center;
  overflow: hidden;
}

#explain .adaptation-column-head h3,
#explain .adaptation-cell__heading,
#explain .adaptation-edit-steps,
#explain .adaptation-review-state {
  margin: 0;
}

#explain .adaptation-column-head h3 {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.2;
  white-space: nowrap;
}

#explain .adaptation-column-head--source {
  color: #f0f0f2;
  background: #0b0c0e;
}

#explain .adaptation-column-head--cut {
  color: #ecebf3;
  background: #111117;
}

#explain .adaptation-column-head--buyer {
  color: #17181b;
  background: #c8c3ba;
}

#explain .adaptation-track__cell {
  position: relative;
  display: grid;
  padding: 9px 12px 8px;
  grid-template-rows: auto minmax(0, 1fr);
  overflow: hidden;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

#explain .adaptation-track__cell--before {
  color: #e9e9ec;
  background: #0b0c0e;
}

#explain .adaptation-track__cell--cut {
  color: #f0eff6;
  background: #111117;
}

#explain .adaptation-track__cell--cut::after {
  position: absolute;
  top: 45px;
  bottom: 9px;
  left: 50%;
  width: 1px;
  content: "";
  background: rgba(139, 124, 255, 0.16);
  pointer-events: none;
}

#explain .adaptation-track__cell--after {
  color: #17181b;
  background: #c8c3ba;
}

#explain .adaptation-cell__heading {
  position: relative;
  z-index: 3;
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  line-height: 1.15;
}

#explain .adaptation-cell__stage {
  display: none;
}

#explain .adaptation-cell__track {
  display: flex;
  min-width: 0;
  align-items: baseline;
  gap: 7px;
}

#explain .adaptation-cell__track small,
#explain .adaptation-anchor-id,
#explain [data-track-anchor] small {
  flex: 0 0 auto;
  color: rgba(139, 124, 255, 0.78);
  font-size: 10px;
  font-weight: 780;
  letter-spacing: 0.07em;
  line-height: 1;
}

#explain .adaptation-cell__track strong {
  min-width: 0;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

#explain .adaptation-raw-document,
#explain .adaptation-target-document {
  position: relative;
  height: calc(100% - 6px);
  margin-top: 6px;
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 0 100%);
}

#explain .adaptation-raw-document {
  background: rgba(255, 255, 255, 0.025);
}

#explain .adaptation-raw-title,
#explain .adaptation-raw-terms,
#explain .adaptation-raw-key-parameter,
#explain .adaptation-target-title,
#explain .adaptation-target-terms,
#explain .adaptation-target-parameter {
  position: absolute;
}

#explain .adaptation-raw-title {
  top: 8px;
  left: 9px;
  display: grid;
  width: 43%;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 4px 7px;
}

#explain .adaptation-raw-title strong {
  overflow: hidden;
  color: rgba(255, 255, 255, 0.56);
  font-size: 11px;
  font-weight: 620;
  letter-spacing: 0.035em;
  line-height: 1.2;
  text-overflow: clip;
  white-space: nowrap;
}

#explain .adaptation-raw-title > i {
  display: block;
  width: 86%;
  height: 2px;
  grid-column: 1 / -1;
  background: rgba(255, 255, 255, 0.16);
}

#explain .adaptation-raw-title > i:nth-of-type(2) {
  width: 62%;
}

#explain .adaptation-raw-terms {
  top: 8px;
  right: 9px;
  display: grid;
  width: 44%;
  gap: 4px;
}

#explain .adaptation-raw-terms > span,
#explain .adaptation-target-terms > span {
  display: grid;
  min-width: 0;
  grid-template-columns: 35px minmax(0, 1fr);
  align-items: center;
  gap: 4px;
}

#explain .adaptation-raw-terms i,
#explain .adaptation-target-terms i {
  display: block;
  width: 100%;
  height: 2px;
  background: currentColor;
  opacity: 0.28;
}

#explain .adaptation-raw-terms > span:nth-child(2) i { width: 66%; }
#explain .adaptation-raw-terms > span:nth-child(3) i { width: 84%; }

#explain .adaptation-raw-copy {
  position: absolute;
  bottom: 9px;
  left: 9px;
  display: grid;
  width: 62%;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 5px 10px;
}

#explain .adaptation-raw-copy i {
  display: block;
  width: 100%;
  height: 2px;
  background: rgba(255, 255, 255, 0.1);
}

#explain .adaptation-raw-copy i:nth-child(2),
#explain .adaptation-raw-copy i:nth-child(5) { width: 74%; }

#explain .adaptation-raw-key-parameter {
  right: 10%;
  bottom: 9px;
  display: grid;
  width: 34%;
  padding: 3px 5px;
  grid-template-columns: auto auto minmax(0, 1fr);
  align-items: center;
  gap: 4px;
  color: rgba(255, 255, 255, 0.5);
  background: #0c0d0f;
}

#explain .adaptation-raw-key-parameter strong {
  overflow: hidden;
  font-size: 10px;
  font-weight: 620;
  text-overflow: clip;
  white-space: nowrap;
}

#explain .adaptation-raw-key-parameter > i {
  height: 2px;
  background: currentColor;
  opacity: 0.28;
}

#explain .adaptation-registration-lock {
  position: absolute;
  z-index: 3;
  top: -4px;
  right: -4px;
  display: block;
  width: 12px;
  height: 12px;
  border-top: 1px solid #8b7cff;
  border-right: 1px solid #8b7cff;
}

#explain .adaptation-registration-lock::before {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 3px;
  height: 3px;
  content: "";
  border-radius: 50%;
  background: #8b7cff;
}

#explain .adaptation-raw-catalog,
#explain .adaptation-buyer-product {
  position: relative;
  height: calc(100% - 6px);
  margin-top: 6px;
  overflow: hidden;
}

#explain .adaptation-raw-catalog {
  background: rgba(255, 255, 255, 0.02);
}

#explain .adaptation-raw-product {
  position: absolute;
  display: grid;
  width: 42%;
  grid-template-columns: 28px minmax(0, 1fr);
  align-items: center;
  gap: 7px;
}

#explain .adaptation-raw-product--01 { top: 7px; left: 8px; }
#explain .adaptation-raw-product--02 { top: 23px; right: 8px; }

#explain .adaptation-raw-product > i,
#explain .adaptation-buyer-products > div > i {
  display: block;
  width: 28px;
  height: 24px;
  background: currentColor;
  clip-path: polygon(0 0, calc(100% - 5px) 0, 100% 5px, 100% 100%, 0 100%);
  opacity: 0.13;
}

#explain .adaptation-raw-product strong,
#explain .adaptation-buyer-products strong {
  font-size: 13px;
  font-weight: 700;
  line-height: 1.1;
  white-space: nowrap;
}

#explain .adaptation-raw-parameter-pair {
  position: absolute;
  right: 0;
  left: 0;
  display: grid;
  height: 15px;
  padding-inline: 8px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: start;
}

#explain .adaptation-raw-parameter-pair--a { top: 49px; }
#explain .adaptation-raw-parameter-pair--b { top: 67px; }
#explain .adaptation-raw-parameter-pair--c { top: 85px; }

#explain .adaptation-raw-parameter-pair span {
  position: relative;
  display: block;
  color: rgba(255, 255, 255, 0.5);
  font-size: 13px;
  font-weight: 620;
  line-height: 1;
  white-space: nowrap;
}

#explain .adaptation-raw-parameter-pair span:first-child { margin-left: 28px; }
#explain .adaptation-raw-parameter-pair span:last-of-type { margin-left: 54px; }
#explain .adaptation-raw-parameter-pair--a span:last-of-type { transform: translateY(4px); }
#explain .adaptation-raw-parameter-pair--b span:first-child { margin-left: 42px; }
#explain .adaptation-raw-parameter-pair--b span:last-of-type { margin-left: 46px; transform: translateY(-2px); }
#explain .adaptation-raw-parameter-pair--c span:first-child { margin-left: 20px; }
#explain .adaptation-raw-parameter-pair--c span:last-of-type { margin-left: 60px; transform: translateY(3px); }

#explain .adaptation-raw-parameter-pair .adaptation-registration-lock {
  top: -2px;
  right: 46%;
}

#explain .adaptation-edit-steps {
  position: relative;
  z-index: 2;
  display: flex;
  min-width: 0;
  margin-top: 5px;
  padding: 0;
  align-items: center;
  justify-content: space-between;
  gap: 2px;
  color: rgba(240, 239, 246, 0.66);
  list-style: none;
}

#explain .adaptation-edit-steps li {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 3px;
  font-size: 13px;
  line-height: 1.15;
  white-space: nowrap;
}

#explain .adaptation-edit-steps li:not(:last-child)::after {
  content: "→";
  color: rgba(139, 124, 255, 0.62);
  font-size: 11px;
}

#explain .adaptation-translation-edit,
#explain .adaptation-interactive-edit {
  position: relative;
  z-index: 2;
  min-width: 0;
  min-height: 0;
  margin-top: 6px;
}

#explain .adaptation-translation-edit {
  display: grid;
  grid-template-columns: 0.78fr 1.18fr 0.78fr;
  align-items: center;
  gap: 8px;
}

#explain .adaptation-edit-title,
#explain .adaptation-edit-parameter {
  position: relative;
  display: grid;
  height: 40px;
  padding: 6px;
  align-content: center;
  color: rgba(139, 124, 255, 0.82);
  background: rgba(139, 124, 255, 0.035);
  clip-path: polygon(0 0, calc(100% - 5px) 0, 100% 5px, 100% 100%, 0 100%);
}

#explain .adaptation-edit-title {
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 4px;
}

#explain .adaptation-edit-title::before,
#explain .adaptation-edit-title::after,
#explain .adaptation-edit-parameter::before,
#explain .adaptation-edit-parameter::after {
  position: absolute;
  width: 6px;
  height: 6px;
  content: "";
}

#explain .adaptation-edit-title::before,
#explain .adaptation-edit-parameter::before { top: 2px; left: 2px; border-top: 1px solid currentColor; border-left: 1px solid currentColor; }
#explain .adaptation-edit-title::after,
#explain .adaptation-edit-parameter::after { right: 2px; bottom: 2px; border-right: 1px solid currentColor; border-bottom: 1px solid currentColor; }

#explain .adaptation-edit-title > i,
#explain .adaptation-edit-parameter > i {
  display: block;
  height: 2px;
  background: currentColor;
  opacity: 0.54;
}

#explain .adaptation-edit-term {
  position: relative;
  display: grid;
  height: 44px;
  padding: 4px 9px;
  grid-template: repeat(3, 1fr) / minmax(0, 1fr) 10px;
  align-items: center;
  gap: 2px 5px;
  color: rgba(139, 124, 255, 0.7);
}

#explain .adaptation-edit-term small {
  position: absolute;
  top: -1px;
  left: 0;
}

#explain .adaptation-edit-term > i {
  display: block;
  height: 2px;
  background: currentColor;
}

#explain .adaptation-edit-term > i:nth-of-type(1) { width: 100%; }
#explain .adaptation-edit-term > i:nth-of-type(2) { width: 64%; }
#explain .adaptation-edit-term > i:nth-of-type(3) { width: 82%; }

#explain .adaptation-edit-term > b {
  position: relative;
  width: 10px;
  height: 10px;
  grid-row: 1 / -1;
  grid-column: 2;
  border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  transform: rotate(-45deg);
}

#explain .adaptation-interactive-edit {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  align-items: stretch;
  gap: 9px;
}

#explain .adaptation-edit-products {
  display: grid;
  grid-template-columns: repeat(2, 24px);
  align-content: center;
  gap: 5px;
}

#explain .adaptation-edit-products span {
  display: grid;
  height: 29px;
  place-items: center;
  color: rgba(139, 124, 255, 0.82);
  font-size: 10px;
  font-weight: 780;
  background: rgba(139, 124, 255, 0.06);
  clip-path: polygon(0 0, calc(100% - 4px) 0, 100% 4px, 100% 100%, 0 100%);
}

#explain .adaptation-edit-axis {
  display: grid;
  align-content: center;
  gap: 4px;
}

#explain .adaptation-edit-axis span {
  display: grid;
  grid-template-columns: 12px repeat(2, minmax(0, 1fr));
  align-items: center;
  gap: 4px;
}

#explain .adaptation-edit-axis span > i {
  display: block;
  height: 1px;
  background: rgba(139, 124, 255, 0.58);
}

#explain .adaptation-target-document {
  background: rgba(255, 255, 255, 0.16);
}

#explain .adaptation-result-state {
  color: #51449d;
  font-size: 13px;
  font-style: normal;
  font-weight: 740;
  line-height: 1.1;
  white-space: nowrap;
}

#explain .adaptation-result-state--read {
  position: absolute;
  top: 7px;
  right: 9px;
}

#explain .adaptation-target-title {
  top: 8px;
  left: 9px;
  display: grid;
  width: 35%;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 4px 7px;
}

#explain .adaptation-target-title strong,
#explain .adaptation-target-parameter strong {
  font-size: 13px;
  font-weight: 720;
  line-height: 1.1;
  white-space: nowrap;
}

#explain .adaptation-target-title > i {
  display: block;
  width: 88%;
  height: 2px;
  grid-column: 1 / -1;
  background: rgba(23, 24, 27, 0.36);
}

#explain .adaptation-target-terms {
  top: 8px;
  left: 42%;
  display: grid;
  width: 26%;
  gap: 4px;
  color: #3e3c43;
}

#explain .adaptation-target-terms > span {
  grid-template-columns: 29px minmax(0, 1fr);
}

#explain .adaptation-target-terms > span i {
  width: 100%;
}

#explain .adaptation-target-parameter {
  right: 9px;
  bottom: 8px;
  display: grid;
  width: 25%;
  padding: 5px 6px;
  grid-template-columns: auto auto minmax(0, 1fr);
  align-items: center;
  gap: 5px;
  color: #25262a;
  background: rgba(23, 24, 27, 0.075);
  clip-path: polygon(0 0, calc(100% - 5px) 0, 100% 5px, 100% 100%, 0 100%);
}

#explain .adaptation-target-parameter > i {
  height: 2px;
  background: currentColor;
  opacity: 0.36;
}

#explain .adaptation-review-state {
  position: absolute;
  bottom: 8px;
  left: 9px;
  color: #2d6849;
  font-size: 13px;
  font-weight: 720;
  line-height: 1.1;
}

#explain .adaptation-buyer-search {
  position: absolute;
  top: 0;
  right: 0;
  display: flex;
  align-items: center;
  gap: 6px;
}

#explain .adaptation-buyer-search > span {
  position: relative;
  display: block;
  width: 14px;
  height: 14px;
}

#explain .adaptation-buyer-search > span::before {
  position: absolute;
  top: 1px;
  left: 1px;
  width: 7px;
  height: 7px;
  content: "";
  border: 1px solid rgba(23, 24, 27, 0.52);
  border-radius: 50%;
}

#explain .adaptation-buyer-search > span::after {
  position: absolute;
  right: 1px;
  bottom: 2px;
  width: 5px;
  height: 1px;
  content: "";
  background: rgba(23, 24, 27, 0.52);
  transform: rotate(45deg);
  transform-origin: right center;
}

#explain .adaptation-buyer-search strong {
  color: #28292d;
  font-size: 13px;
  font-weight: 680;
}

#explain .adaptation-buyer-products {
  position: absolute;
  top: 0;
  left: 0;
  display: grid;
  width: 54%;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

#explain .adaptation-buyer-products > div {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  align-items: center;
  gap: 7px;
}

#explain .adaptation-compare-axis {
  position: absolute;
  top: 34px;
  right: 0;
  left: 0;
  display: grid;
  padding-right: 66px;
  gap: 3px;
}

#explain .adaptation-compare-axis > div {
  display: grid;
  min-height: 15px;
  grid-template-columns: 62px repeat(2, minmax(0, 1fr));
  align-items: center;
  gap: 8px;
}

#explain .adaptation-compare-axis > div strong {
  font-size: 13px;
  font-weight: 650;
  line-height: 1;
}

#explain .adaptation-compare-axis > div > i {
  position: relative;
  display: block;
  height: 1px;
  background: rgba(23, 24, 27, 0.3);
}

#explain [data-difference-marker] {
  position: absolute;
  top: -3px;
  right: 24%;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #7968df;
}

#explain .adaptation-result-state--compare {
  position: absolute;
  top: 19px;
  right: 0;
}

#explain .adaptation-detail-line {
  position: absolute;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

#explain .adaptation-detail-line > span {
  color: #34353a;
  font-size: 13px;
  font-weight: 650;
}

/* Static markup is the complete story; only the explicit first run masks its layers. */
#explain [data-adaptation-motion-root][data-adaptation-motion-state="idle"] [data-adaptation-motion-part^="cold-"],
#explain [data-adaptation-motion-root][data-adaptation-motion-state="idle"] [data-adaptation-motion-part="lock-anchor"],
#explain [data-adaptation-motion-root][data-adaptation-motion-state="idle"] [data-adaptation-motion-part^="edit-"],
#explain [data-adaptation-motion-root][data-adaptation-motion-state="idle"] [data-adaptation-motion-part^="after-"],
#explain [data-adaptation-motion-root][data-adaptation-motion-state="idle"] [data-adaptation-motion-part="payoff"],
#explain [data-adaptation-motion-root][data-adaptation-motion-state="running"] [data-adaptation-motion-part] {
  opacity: 0;
}

#explain [data-adaptation-motion-part="cold-translation"] { --adaptation-delay: 0ms; --adaptation-duration: 150ms; }
#explain [data-adaptation-motion-part="cold-interactive"] { --adaptation-delay: 60ms; --adaptation-duration: 150ms; }
#explain [data-adaptation-motion-part="lock-anchor"] { --adaptation-delay: 650ms; --adaptation-duration: 500ms; }
#explain [data-adaptation-motion-part="edit-translation"] { --adaptation-delay: 1150ms; --adaptation-duration: 600ms; }
#explain [data-adaptation-motion-part="edit-interactive"] { --adaptation-delay: 1220ms; --adaptation-duration: 600ms; }
#explain [data-adaptation-motion-part="after-surface"] { --adaptation-delay: 1750ms; --adaptation-duration: 750ms; }
#explain [data-adaptation-motion-part="after-translation"] { --adaptation-delay: 1800ms; --adaptation-duration: 700ms; }
#explain [data-adaptation-motion-part="after-interactive"] { --adaptation-delay: 1880ms; --adaptation-duration: 700ms; }
#explain [data-adaptation-motion-part="payoff"] { --adaptation-delay: 2500ms; --adaptation-duration: 300ms; }

#explain [data-adaptation-motion-root][data-adaptation-motion-state="running"] [data-adaptation-motion-part^="cold-"] {
  animation: adaptation-cold-open-v4 var(--adaptation-duration) var(--ease-out) var(--adaptation-delay) both;
}

#explain [data-adaptation-motion-root][data-adaptation-motion-state="running"] [data-adaptation-motion-part="lock-anchor"] {
  animation: adaptation-anchor-lock-v4 var(--adaptation-duration) var(--ease-out) var(--adaptation-delay) both;
}

#explain [data-adaptation-motion-root][data-adaptation-motion-state="running"] [data-adaptation-motion-part^="edit-"] {
  animation: adaptation-edit-cut-v4 var(--adaptation-duration) var(--ease-out) var(--adaptation-delay) both;
}

#explain [data-adaptation-motion-root][data-adaptation-motion-state="running"] [data-adaptation-motion-part^="after-"] {
  animation: adaptation-after-mask-v4 var(--adaptation-duration) var(--ease-out) var(--adaptation-delay) both;
}

#explain [data-adaptation-motion-root][data-adaptation-motion-state="running"] [data-adaptation-motion-part="payoff"] {
  animation: adaptation-payoff-v4 var(--adaptation-duration) var(--ease-out) var(--adaptation-delay) both;
}

@keyframes adaptation-cold-open-v4 {
  from { opacity: 0; transform: translateY(3px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes adaptation-anchor-lock-v4 {
  0% { opacity: 0; transform: scale(0.72); }
  65%, 100% { opacity: 1; transform: scale(1); }
}

@keyframes adaptation-edit-cut-v4 {
  from { opacity: 0; clip-path: inset(0 0 0 6%); }
  to { opacity: 1; clip-path: inset(0); }
}

@keyframes adaptation-after-mask-v4 {
  from { opacity: 0; clip-path: inset(0 0 0 8%); }
  to { opacity: 1; clip-path: inset(0); }
}

@keyframes adaptation-payoff-v4 {
  from { opacity: 0; transform: translateY(3px); }
  to { opacity: 1; transform: translateY(0); }
}

html[data-chapter02-qa="silhouette"] #explain .adaptation-column-head h3,
html[data-chapter02-qa="silhouette"] #explain [data-adaptation-step] {
  visibility: hidden !important;
}

@media (max-width: 1040px) and (min-width: 761px) {
  #explain .adaptation-column-heads,
  #explain .adaptation-track {
    grid-template-columns: minmax(0, 32fr) minmax(194px, 20fr) minmax(0, 48fr);
    column-gap: 9px;
  }

  #explain .adaptation-column-head,
  #explain .adaptation-track__cell {
    padding-inline: 9px;
  }

  #explain .adaptation-track__cell--cut {
    padding-inline: 6px;
  }

  #explain .adaptation-edit-steps {
    letter-spacing: -0.035em;
  }

  #explain .adaptation-raw-parameter-pair span:first-child { margin-left: 12px; }
  #explain .adaptation-raw-parameter-pair span:last-of-type { margin-left: 54px; }
  #explain .adaptation-raw-parameter-pair--b span:first-child { margin-left: 22px; }
  #explain .adaptation-raw-parameter-pair--b span:last-of-type { margin-left: 46px; }
  #explain .adaptation-raw-parameter-pair--c span:first-child { margin-left: 8px; }
  #explain .adaptation-raw-parameter-pair--c span:last-of-type { margin-left: 60px; }

  #explain .adaptation-target-terms { width: 29%; }
  #explain .adaptation-target-parameter { width: 28%; }
}

@media (max-width: 760px) {
  #explain .adaptation-spread {
    height: 524px;
  }

  #explain .adaptation-spread__surface {
    grid-template-rows: repeat(2, 258px);
    row-gap: 8px;
  }

  #explain .adaptation-column-heads {
    display: none;
  }

  #explain .adaptation-track {
    grid-template: 94px 66px 90px / minmax(0, 1fr);
    row-gap: 4px;
  }

  #explain .adaptation-track__cell {
    padding: 5px 8px 4px;
  }

  #explain .adaptation-cell__heading {
    gap: 6px;
  }

  #explain .adaptation-cell__stage {
    display: block;
    min-width: 0;
    font-size: 13px;
    font-weight: 680;
    line-height: 1.1;
    white-space: nowrap;
  }

  #explain .adaptation-cell__track {
    margin-left: auto;
    gap: 5px;
  }

  #explain .adaptation-cell__track strong {
    font-size: 13px;
    white-space: nowrap;
  }

  #explain .adaptation-raw-document,
  #explain .adaptation-target-document,
  #explain .adaptation-raw-catalog,
  #explain .adaptation-buyer-product {
    height: calc(100% - 3px);
    margin-top: 3px;
  }

  #explain .adaptation-raw-title { top: 4px; left: 5px; width: 35%; gap: 2px 4px; }
  #explain .adaptation-raw-title strong { font-size: 9px; }
  #explain .adaptation-raw-title > i { height: 1px; }
  #explain .adaptation-raw-terms { top: 4px; right: 5px; width: 39%; gap: 2px; }
  #explain .adaptation-raw-terms > span,
  #explain .adaptation-target-terms > span { grid-template-columns: 29px minmax(0, 1fr); gap: 3px; }
  #explain .adaptation-raw-copy { bottom: 4px; left: 5px; width: 53%; gap: 3px 6px; }
  #explain .adaptation-raw-key-parameter { right: 12%; bottom: 3px; width: 37%; padding: 2px 4px; }

  #explain .adaptation-track__cell--cut::after {
    top: 38px;
    bottom: 3px;
  }

  #explain .adaptation-edit-steps {
    margin-top: 2px;
  }

  #explain .adaptation-edit-steps li {
    font-size: 13px;
  }

  #explain .adaptation-translation-edit,
  #explain .adaptation-interactive-edit {
    height: 22px;
    margin-top: 2px;
  }

  #explain .adaptation-translation-edit {
    grid-template-columns: 0.72fr 1.28fr 0.72fr;
    gap: 14px;
  }

  #explain .adaptation-edit-title,
  #explain .adaptation-edit-parameter {
    height: 21px;
    padding: 3px 5px;
  }

  #explain .adaptation-edit-term {
    height: 22px;
    padding: 1px 8px;
    gap: 1px 5px;
  }

  #explain .adaptation-interactive-edit {
    grid-template-columns: 62px minmax(0, 1fr);
    gap: 12px;
  }

  #explain .adaptation-edit-products {
    grid-template-columns: repeat(2, 27px);
    gap: 7px;
  }

  #explain .adaptation-edit-products span {
    height: 21px;
  }

  #explain .adaptation-edit-axis {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 7px;
  }

  #explain .adaptation-edit-axis span {
    grid-template-columns: 10px minmax(0, 1fr);
    gap: 3px;
  }

  #explain .adaptation-edit-axis span > i:last-child {
    display: none;
  }

  #explain .adaptation-raw-product {
    width: 39%;
    grid-template-columns: 22px minmax(0, 1fr);
    gap: 5px;
  }

  #explain .adaptation-raw-product--01 { top: 3px; left: 5px; }
  #explain .adaptation-raw-product--02 { top: 7px; right: 5px; }

  #explain .adaptation-raw-product > i,
  #explain .adaptation-buyer-products > div > i {
    width: 22px;
    height: 18px;
  }

  #explain .adaptation-raw-product strong,
  #explain .adaptation-buyer-products strong,
  #explain .adaptation-raw-parameter-pair span {
    font-size: 13px;
  }

  #explain .adaptation-raw-parameter-pair { padding-inline: 5px; }
  #explain .adaptation-raw-parameter-pair--a { top: 26px; }
  #explain .adaptation-raw-parameter-pair--b { top: 40px; }
  #explain .adaptation-raw-parameter-pair--c { top: 54px; }
  #explain .adaptation-raw-parameter-pair span { font-size: 12px; }
  #explain .adaptation-raw-parameter-pair span:first-child { margin-left: 24px; }
  #explain .adaptation-raw-parameter-pair span:last-of-type { margin-left: 54px; }
  #explain .adaptation-raw-parameter-pair--a span:last-of-type { transform: translateY(2px); }
  #explain .adaptation-raw-parameter-pair--b span:first-child { margin-left: 36px; }
  #explain .adaptation-raw-parameter-pair--b span:last-of-type { margin-left: 46px; transform: translateY(-1px); }
  #explain .adaptation-raw-parameter-pair--c span:first-child { margin-left: 18px; }
  #explain .adaptation-raw-parameter-pair--c span:last-of-type { margin-left: 60px; transform: translateY(2px); }

  #explain .adaptation-result-state--read { top: 4px; right: 5px; }
  #explain .adaptation-target-title { top: 4px; left: 5px; width: 32%; gap: 2px 4px; }
  #explain .adaptation-target-title strong,
  #explain .adaptation-target-parameter strong { font-size: 13px; }
  #explain .adaptation-target-terms { top: 4px; left: 37%; width: 31%; gap: 2px; }
  #explain .adaptation-target-parameter { right: 5px; bottom: 4px; width: 29%; padding: 3px 4px; }
  #explain .adaptation-review-state { bottom: 4px; left: 5px; font-size: 13px; }

  #explain .adaptation-buyer-search { top: 0; }
  #explain .adaptation-buyer-products { top: 0; width: 54%; gap: 7px; }
  #explain .adaptation-buyer-products > div { grid-template-columns: 22px minmax(0, 1fr); gap: 5px; }
  #explain .adaptation-compare-axis { top: 22px; padding-right: 62px; gap: 1px; }
  #explain .adaptation-compare-axis > div { min-height: 13px; grid-template-columns: 58px repeat(2, minmax(0, 1fr)); gap: 6px; }
  #explain .adaptation-compare-axis > div strong { font-size: 13px; }
  #explain .adaptation-result-state--compare { top: 13px; }
  #explain .adaptation-detail-line { bottom: 0; }
  #explain .adaptation-detail-line > span,
  #explain .adaptation-result-state { font-size: 13px; }

  #explain [data-adaptation-motion-part="cold-interactive"] { --adaptation-delay: 50ms; --adaptation-duration: 128ms; }
  #explain [data-adaptation-motion-part="lock-anchor"] { --adaptation-delay: 550ms; --adaptation-duration: 425ms; }
  #explain [data-adaptation-motion-part="edit-translation"] { --adaptation-delay: 980ms; --adaptation-duration: 510ms; }
  #explain [data-adaptation-motion-part="edit-interactive"] { --adaptation-delay: 1040ms; --adaptation-duration: 510ms; }
  #explain [data-adaptation-motion-part="after-surface"] { --adaptation-delay: 1490ms; --adaptation-duration: 638ms; }
  #explain [data-adaptation-motion-part="after-translation"] { --adaptation-delay: 1530ms; --adaptation-duration: 595ms; }
  #explain [data-adaptation-motion-part="after-interactive"] { --adaptation-delay: 1600ms; --adaptation-duration: 595ms; }
  #explain [data-adaptation-motion-part="payoff"] { --adaptation-delay: 2125ms; --adaptation-duration: 255ms; }
}

@media (prefers-reduced-motion: reduce) {
  #explain [data-adaptation-motion-root] [data-adaptation-motion-part] {
    opacity: 1 !important;
    transform: none !important;
    clip-path: none !important;
    animation: none !important;
  }
}

#explain .explain-proof-strip,
#explain .explain-proof-strip > div,
#explain .explain-proof-strip .proof-entry--action-only {
  min-height: 44px;
}

#explain .explain-proof-strip {
  overflow: visible;
  border: 0;
  border-radius: 0;
  background: transparent;
}

#explain .explain-proof-strip > div {
  display: block;
}

#explain .explain-proof-strip .proof-entry--action-only {
  display: flex;
  padding: 0;
  align-items: center;
  justify-content: flex-end;
  gap: 0;
}

#explain .explain-proof-strip .proof-entry__action {
  min-height: 44px;
  justify-content: flex-end;
  text-align: right;
}

@media (max-width: 760px) {
  #explain .explain-proof-strip .proof-entry__action {
    font-size: 11px;
    line-height: 1.25;
    white-space: normal;
  }
}

/* 03 · Revise judgment with field evidence */

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

.revision-track {
  display: grid;
  height: 100%;
  grid-template-columns: minmax(150px, 18fr) minmax(190px, 23fr) minmax(280px, 35fr) minmax(210px, 24fr);
}

.revision-node {
  position: relative;
  display: flex;
  min-width: 0;
  padding: 14px 15px;
  flex-direction: column;
  border-right: 1px solid var(--hairline);
}

.revision-node:last-child {
  border-right: 0;
}

.revision-node > button {
  display: flex;
  min-height: 44px;
  padding: 7px 9px;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--hairline);
  border-radius: 7px;
  background: var(--surface-raised);
  text-align: left;
}

.revision-node > button b {
  color: var(--text-faint);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 9px;
}

.revision-node > button span {
  color: var(--muted-strong);
  font-size: 10px;
  font-weight: 650;
}

.revision-node > button[aria-pressed="true"] {
  border-color: var(--interactive);
}

.revision-node > strong {
  margin-top: 18px;
  font-size: 17px;
}

.revision-node > p {
  margin: 8px 0 0;
  color: var(--muted-strong);
  font-size: 11px;
  line-height: 1.45;
}

.revision-node > small {
  margin-top: auto;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.4;
}

.evidence-legend {
  display: grid;
  margin-top: auto;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 5px;
}

.evidence-legend span {
  display: flex;
  min-height: 27px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  color: var(--muted);
  font-size: 9px;
}

.revision-node--pivot {
  background: #ececed;
  color: #121315;
}

.revision-node--pivot > button {
  border-color: #cbccd1;
  background: #f7f7f8;
}

.revision-node--pivot > button[aria-pressed="true"] {
  border-color: #5e43d7;
}

.revision-node--pivot > button b,
.revision-node--pivot > button span,
.revision-node--pivot > p,
.revision-node--pivot > small {
  color: #575a62;
}

.revision-delta {
  display: grid;
  margin-top: 14px;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 6px;
}

.revision-delta span,
.revision-delta b {
  display: flex;
  min-height: 34px;
  padding: 5px 7px;
  align-items: center;
  justify-content: center;
  border: 1px solid #c9cbd0;
  border-radius: 6px;
  font-size: 9px;
  text-align: center;
}

.revision-delta i {
  color: #666a72;
  font-size: 9px;
  font-style: normal;
}

.revision-node--decision .scene-primary-action {
  margin-top: auto;
}

/* 04 · Converge two paths into the same output */

.same-output-process-scene {
  grid-template-columns: minmax(540px, 56fr) minmax(190px, 20fr) minmax(230px, 24fr);
}

.process-tracks,
.same-output-anchor,
.process-conclusion {
  min-width: 0;
  padding: 14px 15px;
}

.process-tracks,
.same-output-anchor {
  border-right: 1px solid var(--hairline);
}

.process-tracks {
  display: grid;
  grid-template-rows: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.process-track {
  display: grid;
  min-height: 0;
  padding: 8px;
  grid-template-columns: 112px minmax(0, 1fr);
  align-items: center;
  gap: 9px;
  border: 1px solid var(--hairline);
  border-radius: 7px;
  background: var(--surface-raised);
  transition: border-color 140ms var(--ease-out), background-color 140ms var(--ease-out);
}

.same-output-process-scene[data-active-process="manual"] [data-process-track="manual"],
.same-output-process-scene[data-active-process="system"] [data-process-track="system"] {
  border-color: var(--interactive);
  background: #15131c;
}

.process-track > button {
  display: flex;
  min-height: 48px;
  padding: 7px 8px;
  align-items: center;
  justify-content: space-between;
  gap: 7px;
  border: 1px solid var(--hairline);
  border-radius: 6px;
  background: #0b0c0e;
  text-align: left;
}

.process-track > button span {
  color: var(--muted-strong);
  font-size: 10px;
  font-weight: 650;
}

.process-track > button b {
  color: var(--muted);
  font-size: 9px;
}

.process-track > button[aria-pressed="true"] {
  border-color: var(--interactive);
}

.process-track ol {
  display: flex;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
  gap: 5px;
  list-style: none;
}

.process-track li {
  padding: 3px 6px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  color: var(--muted-strong);
  font-size: 9px;
  white-space: nowrap;
}

.same-output-anchor {
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 9px;
  background: #f1f1f2;
  color: #151618;
  text-align: center;
}

.same-output-anchor > span {
  color: #555861;
}

.same-output-anchor > strong {
  font-size: 20px;
}

.same-output-anchor > div {
  display: flex;
  gap: 6px;
}

.same-output-anchor > div b {
  padding: 5px 8px;
  border: 1px solid #c9cbd0;
  border-radius: 5px;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 9px;
}

.same-output-anchor small {
  color: #666a72;
}

.process-conclusion {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.process-conclusion p {
  margin: 0;
  font-size: 15px;
  font-weight: 650;
  line-height: 1.45;
}

.process-conclusion .scene-primary-action {
  margin-top: auto;
}

/* Evidence strip and handoff */

.success-proof-strip {
  min-width: 0;
  min-height: 62px;
  overflow: hidden;
  border: 1px solid var(--hairline);
  border-radius: 9px;
  background: var(--surface-raised);
}

.success-proof-strip > div {
  display: grid;
  min-height: 60px;
  grid-template-columns: minmax(0, 1fr) auto;
}

.proof-entry {
  display: grid;
  min-width: 0;
  min-height: 60px;
  padding: 8px 12px;
  grid-template-columns: 94px minmax(0, 1fr) minmax(145px, auto) auto;
  align-items: center;
  gap: 12px;
}

.proof-entry--supporting {
  width: 285px;
  grid-template-columns: minmax(0, 1fr) auto;
  border-left: 1px solid var(--hairline);
}

.proof-entry__type,
.proof-entry__boundary,
.proof-entry__review {
  color: var(--muted);
  font-size: 10px;
  font-weight: 650;
}

.proof-entry__copy {
  display: grid;
  min-width: 0;
  gap: 1px;
}

.proof-entry__copy strong {
  overflow: hidden;
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.proof-entry__copy span {
  overflow: hidden;
  color: var(--muted);
  font-size: 10px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.proof-entry__boundary {
  color: var(--muted-strong);
  white-space: nowrap;
}

.proof-entry__action {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 7px;
  color: var(--text);
  font-size: 11px;
  font-weight: 700;
  white-space: nowrap;
}

.proof-entry__action[href]:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.proof-entry__action.is-locked,
.proof-entry__review {
  color: var(--muted);
}

.proof-entry__review {
  display: none;
}

.proof-entry--supporting .proof-entry__type,
.proof-entry--supporting .proof-entry__copy span,
.proof-entry--supporting .proof-entry__boundary,
.proof-entry--supporting .proof-entry__review {
  display: none;
}

@media (max-width: 1040px) {
  .chapter-page .stage__header {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 28px;
  }

  .signal-compression-scene {
    grid-template-columns: minmax(0, 0.72fr) minmax(280px, 1fr) minmax(230px, 0.82fr);
  }

  .field-discovery-scene {
    grid-template-columns: 130px minmax(320px, 1.45fr) minmax(190px, 0.86fr) 175px;
  }

  .same-output-process-scene {
    grid-template-columns: minmax(0, 1.45fr) 190px 220px;
  }

  .proof-entry {
    grid-template-columns: 86px minmax(0, 1fr) auto;
  }

  .proof-entry__boundary {
    display: none;
  }

  .proof-entry--supporting {
    display: none;
  }
}

@media (max-height: 820px) and (min-width: 761px) {
  .chapter-page__inner {
    padding-block: 16px;
    gap: 10px;
  }

  .chapter-page .stage__header h2 {
    font-size: clamp(32px, 3.4vw, 42px);
  }

  .chapter-page .stage__header div > p {
    margin-top: 6px;
    font-size: 13px;
  }

  .chapter-scene {
    height: clamp(276px, 36vh, 304px);
  }
}

@media (max-width: 760px) {
  .chapter-page__inner {
    padding-block: 10px 12px;
    gap: 8px;
  }

  .chapter-page .stage__header {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .chapter-page .stage__index {
    font-size: 10px;
  }

  .chapter-page .stage__index span {
    width: 30px;
    height: 20px;
  }

  .chapter-page .stage__header h2 {
    font-size: clamp(27px, 7.5vw, 31px);
    line-height: 1.08;
  }

  .chapter-page .stage__header div > p {
    display: -webkit-box;
    overflow: hidden;
    margin-top: 4px;
    font-size: 12px;
    line-height: 1.4;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
  }

  .chapter-scene {
    height: 358px;
    border-radius: 10px;
    box-shadow: none;
  }

  .scene-label small {
    font-size: 9px;
  }

  .signal-compression-scene {
    grid-template: 70px 150px 138px / 1fr;
  }

  .noise-field,
  .judgment-lens,
  .action-briefs {
    padding: 8px 10px;
    border-right: 0;
  }

  .noise-field,
  .judgment-lens {
    border-bottom: 1px solid var(--hairline);
  }

  .noise-field__items {
    margin-top: 4px;
    flex-wrap: nowrap;
    gap: 4px;
  }

  .noise-field__items span {
    min-height: 24px;
    padding: 4px 6px;
    overflow: hidden;
    font-size: 9px;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .noise-field__items span:nth-child(n + 5),
  .noise-field > p {
    display: none;
  }

  .judgment-lens__controls {
    margin-top: 5px;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 3px;
  }

  .judgment-lens__controls button {
    min-height: 44px;
    padding: 4px 2px;
    flex-direction: column;
    justify-content: center;
    gap: 1px;
    font-size: 9px;
    text-align: center;
  }

  .judgment-lens__result {
    min-height: 48px;
    margin-top: 5px;
    padding: 5px 8px;
  }

  .judgment-lens__result strong {
    font-size: 10px;
  }

  .action-briefs {
    display: grid;
    grid-template: 1fr 44px / minmax(0, 1fr) auto;
    align-items: center;
    gap: 4px 9px;
  }

  .action-briefs .scene-label,
  .action-brief {
    display: none;
  }

  .scene-claim {
    margin: 0;
    font-size: 11px;
  }

  .action-briefs .scene-primary-action {
    grid-column: 1 / -1;
  }

  .field-discovery-scene {
    height: 390px;
    grid-template: 42px 162px 76px 110px / 1fr;
  }

  .documentary-placeholder,
  .field-story,
  .aha-reveal-card,
  .field-decision {
    padding: 7px 9px;
    border-right: 0;
  }

  .documentary-placeholder,
  .field-story,
  .aha-reveal-card {
    border-bottom: 1px solid var(--hairline);
  }

  .documentary-placeholder {
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 8px;
  }

  .documentary-placeholder strong {
    font-size: 11px;
  }

  .documentary-placeholder small {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .field-story {
    grid-template-rows: 52px 8px 1fr;
    gap: 4px;
  }

  .field-story__acts button {
    min-height: 52px;
    padding: 4px;
    text-align: center;
  }

  .route-line {
    height: 8px;
  }

  .route-line i {
    margin-top: -9px;
  }

  .field-detail {
    min-height: 0;
    padding: 5px 8px;
  }

  .field-detail strong {
    font-size: 10px;
  }

  .aha-reveal-card {
    gap: 2px;
  }

  .aha-reveal-card strong {
    font-size: 13px;
  }

  .aha-reveal-card p {
    font-size: 9px;
  }

  .field-decision {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 1px 8px;
  }

  .field-decision > span,
  .field-decision > strong,
  .field-decision > small {
    grid-column: 1;
  }

  .field-decision .scene-primary-action {
    grid-column: 1 / -1;
  }

  .field-decision .scene-action-link {
    min-height: 44px;
  }

  .same-output-process-scene {
    height: 340px;
    grid-template: 160px 92px 88px / 1fr;
  }

  .process-compare,
  .same-output-anchor,
  .process-conclusion {
    padding: 7px 9px;
    border-right: 0;
  }

  .same-output-anchor {
    grid-row: 1;
    border-bottom: 1px solid var(--hairline);
  }

  .process-compare {
    grid-row: 2;
    grid-template-rows: 44px 1fr;
    gap: 4px;
    border-bottom: 1px solid var(--hairline);
  }

  .process-conclusion {
    grid-row: 3;
  }

  .process-compare__controls button {
    min-height: 44px;
  }

  .process-lane {
    display: none;
    padding: 4px 6px;
    gap: 3px;
  }

  .same-output-process-scene[data-active-process="manual"] .process-lane--manual,
  .same-output-process-scene[data-active-process="system"] .process-lane--system {
    display: grid;
  }

  .process-lane__label {
    display: none;
  }

  .process-lane li {
    padding: 2px 5px;
    font-size: 8px;
  }

  .same-output-anchor {
    gap: 4px;
  }

  .same-output-anchor > strong {
    font-size: 17px;
  }

  .process-conclusion p {
    font-size: 11px;
  }

  .process-conclusion .scene-action-link {
    min-height: 44px;
  }

  .success-proof-strip {
    min-height: 60px;
  }

  .success-proof-strip > div {
    display: block;
  }

  .proof-entry {
    min-height: 58px;
    padding: 6px 9px;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px;
  }

  .proof-entry__type,
  .proof-entry__boundary,
  .proof-entry__review,
  .proof-entry__copy span {
    display: none;
  }

  .proof-entry__copy strong {
    font-size: 11px;
  }

  .proof-entry__action {
    min-height: 44px;
    font-size: 10px;
  }

  .chapter-page .stage__footer {
    grid-template-columns: 1fr;
    min-height: 68px;
    gap: 1px;
    align-content: center;
  }

  .chapter-page .stage-next {
    min-height: 44px;
    justify-self: end;
    font-size: 10px;
  }

  .chapter-page .stage__footer > .stage-next:only-child {
    grid-column: 1;
  }
}

@media (max-width: 380px) {
  .chapter-page .stage__header h2 {
    font-size: 26px;
  }

  .chapter-page .stage__header div > p {
    font-size: 11px;
  }

  .proof-entry__action {
    font-size: 9px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .noise-field__items span,
  .process-lane {
    transition: none;
  }
}

/* Visual grammar responsive contract ----------------------------------- */

@media (max-width: 1040px) and (min-width: 761px) {
  .signal-compression-scene {
    grid-template-columns: minmax(160px, 24fr) minmax(330px, 44fr) minmax(220px, 32fr);
  }

  .revision-track {
    grid-template-columns: minmax(130px, 18fr) minmax(165px, 23fr) minmax(250px, 35fr) minmax(185px, 24fr);
  }

  .same-output-process-scene {
    grid-template-columns: minmax(470px, 56fr) minmax(170px, 20fr) minmax(200px, 24fr);
  }

  .candidate-pool,
  .decision-gate,
  .priority-list,
  .revision-node,
  .process-tracks,
  .same-output-anchor,
  .process-conclusion {
    padding-inline: 11px;
  }
}

@media (max-width: 760px) {
  .chapter-scene {
    border-radius: 10px;
    box-shadow: none;
  }

  .scene-label {
    min-height: 18px;
  }

  .scene-label small {
    font-size: 9px;
  }

  .signal-compression-scene {
    height: 350px;
    grid-template: 74px 134px 142px / 1fr;
  }

  .candidate-pool,
  .decision-gate,
  .priority-list {
    padding: 7px 9px;
    border-right: 0;
  }

  .candidate-pool,
  .decision-gate {
    border-bottom: 1px solid var(--hairline);
  }

  .candidate-pool {
    display: grid;
    grid-template: 18px 35px / 112px minmax(0, 1fr);
    align-content: center;
    gap: 4px 8px;
  }

  .candidate-pool .scene-label {
    grid-column: 1 / -1;
  }

  .candidate-pool .compression-number {
    margin: 0;
    align-items: baseline;
  }

  .candidate-pool .compression-number strong {
    font-size: 28px;
  }

  .candidate-pool .compression-number span {
    font-size: 8px;
    letter-spacing: 0;
    text-transform: none;
  }

  .candidate-pool__signals {
    margin: 0;
    gap: 3px;
  }

  .candidate-pool__signals span {
    min-height: 16px;
    padding: 2px 5px;
    font-size: 8px;
  }

  .candidate-pool > p {
    display: none;
  }

  .decision-gate {
    grid-template-rows: 18px 54px 44px;
    gap: 4px;
  }

  .decision-gate__summary {
    grid-template-columns: 106px minmax(0, 1fr);
    gap: 5px;
  }

  .compression-number--middle {
    min-height: 54px;
    padding: 5px 7px;
    gap: 4px;
  }

  .compression-number--middle strong {
    font-size: 25px;
  }

  .compression-number--middle span,
  .compression-number--middle small {
    font-size: 8px;
  }

  .judgment-lens__result {
    min-height: 54px;
    padding: 5px 8px;
  }

  .judgment-lens__result span {
    font-size: 9px;
  }

  .judgment-lens__result strong {
    font-size: 10px;
  }

  .judgment-lens__controls {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 3px;
  }

  .judgment-lens__controls button {
    min-height: 44px;
    padding: 3px 2px;
    flex-direction: column;
    justify-content: center;
    gap: 1px;
    font-size: 9px;
    text-align: center;
  }

  .priority-list {
    display: grid;
    grid-template: 18px 31px 14px 44px / minmax(0, 1fr) 126px;
    align-content: center;
    gap: 4px 7px;
  }

  .priority-list .scene-label,
  .priority-list .scene-claim,
  .priority-list .scene-primary-action {
    grid-column: 1 / -1;
  }

  .priority-list__top {
    min-height: 31px;
    margin: 0;
    padding: 3px 7px;
    flex-direction: row;
    align-items: baseline;
    justify-content: flex-start;
    gap: 7px;
  }

  .priority-list__top strong {
    font-size: 19px;
  }

  .priority-list__states {
    margin: 0;
    gap: 3px;
  }

  .priority-list__states span {
    min-height: 31px;
    font-size: 8px;
  }

  .scene-claim {
    margin: 0;
    font-size: 10px;
  }

  .field-discovery-scene {
    height: 378px;
    grid-template: 1fr / 1fr;
  }

  .revision-track {
    grid-template: 60px 78px 140px 100px / 1fr;
  }

  .revision-node {
    display: grid;
    padding: 6px 8px;
    grid-template: 1fr / 105px minmax(0, 1fr);
    align-items: center;
    gap: 5px 8px;
    border-right: 0;
    border-bottom: 1px solid var(--hairline);
  }

  .revision-node:last-child {
    border-bottom: 0;
  }

  .revision-node > button {
    min-height: 44px;
    grid-row: 1 / span 2;
  }

  .revision-node > strong {
    margin: 0;
    font-size: 13px;
  }

  .revision-node > p {
    margin: 0;
    font-size: 9px;
    line-height: 1.3;
  }

  .revision-node > small {
    display: none;
  }

  .evidence-legend {
    margin: 0;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 3px;
  }

  .evidence-legend span {
    min-height: 20px;
    font-size: 8px;
  }

  .revision-node--evidence {
    grid-template: auto auto / 105px minmax(0, 1fr);
  }

  .revision-node--evidence > button {
    grid-row: 1 / span 2;
  }

  .revision-node--evidence > strong {
    display: none;
  }

  .revision-node--pivot {
    display: grid;
    grid-template: 44px 18px 34px auto / 105px minmax(0, 1fr);
    align-content: center;
  }

  .revision-node--pivot > button {
    grid-row: 1;
  }

  .revision-node--pivot > strong {
    grid-column: 2;
    grid-row: 1;
  }

  .revision-delta {
    margin: 0;
    grid-column: 1 / -1;
    grid-row: 2 / span 2;
  }

  .revision-node--pivot > p {
    grid-column: 1 / -1;
    grid-row: 4;
  }

  .revision-node--decision {
    grid-template: 44px 44px / 105px minmax(0, 1fr);
  }

  .revision-node--decision > button {
    grid-row: 1;
  }

  .revision-node--decision > strong,
  .revision-node--decision > p {
    grid-column: 2;
    grid-row: 1;
  }

  .revision-node--decision > p {
    align-self: end;
  }

  .revision-node--decision .scene-primary-action {
    grid-column: 1 / -1;
    grid-row: 2;
    margin: 0;
  }

  .same-output-process-scene {
    height: 340px;
    grid-template: 170px 82px 88px / 1fr;
  }

  .process-tracks,
  .same-output-anchor,
  .process-conclusion {
    padding: 7px 9px;
    border-right: 0;
  }

  .process-tracks {
    grid-row: 1;
    grid-template-rows: repeat(2, minmax(0, 1fr));
    gap: 5px;
    border-bottom: 1px solid var(--hairline);
  }

  .process-track {
    padding: 5px;
    grid-template-columns: 86px minmax(0, 1fr);
    gap: 5px;
  }

  .process-track > button {
    min-height: 44px;
    padding: 4px 6px;
  }

  .process-track > button span {
    font-size: 9px;
  }

  .process-track li {
    padding: 2px 4px;
    font-size: 8px;
  }

  .same-output-anchor {
    grid-row: 2;
    grid-template-columns: 1fr auto;
    justify-items: start;
    gap: 2px 8px;
    border-bottom: 1px solid var(--hairline);
    text-align: left;
  }

  .same-output-anchor > span,
  .same-output-anchor > strong,
  .same-output-anchor > small {
    grid-column: 1;
  }

  .same-output-anchor > strong {
    font-size: 16px;
  }

  .same-output-anchor > div {
    grid-column: 2;
    grid-row: 1 / span 3;
    align-self: center;
  }

  .same-output-anchor > small {
    font-size: 8px;
  }

  .process-conclusion {
    grid-row: 3;
    display: grid;
    grid-template-rows: 1fr 44px;
    gap: 2px;
  }

  .process-conclusion p {
    font-size: 10px;
  }

  .process-conclusion .scene-primary-action {
    margin: 0;
  }
}

@media (max-width: 760px) and (max-height: 720px) {
  .chapter-page__inner {
    padding-block: 6px 8px;
    gap: 5px;
  }

  .chapter-page .stage__header div > p {
    display: none;
  }

  .chapter-page .stage__header h2 {
    font-size: 25px;
  }

  .success-proof-strip,
  .success-proof-strip > div,
  .proof-entry {
    min-height: 54px;
  }

  .chapter-page .stage__footer {
    min-height: 54px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .candidate-pool__signals span,
  .process-track {
    transition: none;
  }
}

/* 01 · Direction A: noise field, one five-stage lens, action briefs */

#find {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  background: var(--surface);
}

.find-chapter-bg {
  position: absolute;
  z-index: 0;
  inset: 0;
  background: none;
  filter: none;
  opacity: 0;
  pointer-events: none;
  -webkit-mask-image: none;
  mask-image: none;
}

#find::after {
  position: absolute;
  z-index: 0;
  inset: 0;
  background:
    radial-gradient(ellipse 72% 58% at 53% 50%, rgba(8, 9, 10, 0.44) 0 58%, rgba(8, 9, 10, 0.16) 84%, rgba(8, 9, 10, 0.32) 100%),
    linear-gradient(180deg, rgba(8, 9, 10, 0.52) 0%, rgba(8, 9, 10, 0.24) 56%, rgba(8, 9, 10, 0.58) 100%),
    linear-gradient(90deg, rgba(8, 9, 10, 0.34) 0%, transparent 18%, transparent 82%, rgba(8, 9, 10, 0.34) 100%);
  content: "";
  pointer-events: none;
}

#find > .chapter-page__inner {
  position: relative;
  z-index: 1;
}

.find-topology-scene {
  position: relative;
  display: grid;
  height: clamp(296px, 38vh, 340px);
  grid-template-columns: minmax(210px, 0.82fr) minmax(420px, 1.42fr) minmax(250px, 0.9fr);
  gap: clamp(16px, 2vw, 30px);
  overflow: hidden;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  isolation: isolate;
}

.find-region {
  position: relative;
  min-width: 0;
  min-height: 0;
}

.find-region-label {
  position: relative;
  z-index: 8;
  display: flex;
  min-height: 28px;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.find-region-label strong {
  color: var(--text);
  font-size: 16px;
  font-weight: 650;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.find-region-label span {
  color: var(--text-faint);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.find-noise-field {
  position: absolute;
  inset: 42px 2px 28px 0;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, #000 0%, #000 77%, transparent 100%);
  mask-image: linear-gradient(90deg, #000 0%, #000 77%, transparent 100%);
}

.find-noise-field::before,
.find-noise-field::after {
  position: absolute;
  width: 120%;
  height: 1px;
  background: rgba(255, 255, 255, 0.12);
  content: "";
}

.find-noise-field::before {
  top: 35%;
  transform: rotate(9deg);
}

.find-noise-field::after {
  top: 63%;
  transform: rotate(-7deg);
}

.find-fragment {
  position: absolute;
  display: grid;
  width: clamp(128px, 14vw, 188px);
  padding: 6px 4px 6px 8px;
  grid-template-columns: minmax(72px, 1fr) auto;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  border-left: 1px solid rgba(255, 255, 255, 0.18);
  background: linear-gradient(90deg, rgba(20, 21, 24, 0.86), rgba(13, 14, 16, 0.1));
  color: #92969d;
  font-size: 10.5px;
  line-height: 1.15;
  transform-origin: left center;
}

.find-fragment b {
  color: #c4c7cc;
  font-weight: 580;
}

.find-fragment small {
  color: #676b73;
  font-size: 9.5px;
}

.find-fragment--1 { top: 5%; left: 2%; transform: rotate(-8deg); }
.find-fragment--2 { top: 15%; left: 34%; opacity: 0.76; transform: rotate(5deg); }
.find-fragment--3 { top: 27%; left: 9%; transform: rotate(4deg); }
.find-fragment--4 { top: 37%; left: 43%; opacity: 0.7; transform: rotate(-11deg); }
.find-fragment--5 { top: 46%; left: -4%; opacity: 0.46; transform: rotate(10deg); }
.find-fragment--6 { top: 57%; left: 28%; opacity: 0.52; transform: rotate(-4deg); }
.find-fragment--7 { top: 68%; left: 4%; opacity: 0.48; transform: rotate(-6deg); }
.find-fragment--8 { top: 78%; left: 42%; opacity: 0.46; transform: rotate(8deg); }

.find-judgment-lens,
.find-action-briefs {
  z-index: 3;
  display: grid;
  grid-template-rows: 28px minmax(0, 1fr);
}

.find-judgment-lens .find-region-label span {
  color: rgba(181, 174, 255, 0.78);
}

.find-lens-mechanism {
  position: relative;
  min-height: 0;
  margin: 6px 0 8px;
  filter: none;
}

.find-lens-mechanism::before {
  position: absolute;
  z-index: -1;
  inset: 8% 4% 11%;
  background: radial-gradient(ellipse at center, rgba(103, 83, 218, 0.07), transparent 68%);
  content: "";
}

.find-lens-axis {
  position: absolute;
  z-index: 6;
  top: 50%;
  right: 0;
  left: -22px;
  height: 2px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.05), rgba(157, 140, 255, 0.72) 44%, rgba(225, 220, 255, 0.84) 66%, rgba(255, 255, 255, 0.2));
  box-shadow: 0 0 20px rgba(157, 140, 255, 0.08);
}

.find-lens-axis::before,
.find-lens-axis::after {
  position: absolute;
  top: 50%;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  content: "";
  transform: translateY(-50%);
}

.find-lens-axis::before { left: 0; color: #858991; }
.find-lens-axis::after { right: 0; color: #d8d3ff; }

.find-lens-traces {
  position: absolute;
  z-index: 4;
  inset: 13% 0 10% -14%;
  width: 114%;
  height: 77%;
  overflow: hidden;
}

.find-lens-traces path {
  fill: none;
  stroke: rgba(174, 178, 187, 0.2);
  stroke-width: 1.15;
  vector-effect: non-scaling-stroke;
}

.find-lens-traces path.is-rejected {
  opacity: 0.22;
  stroke-dasharray: 4 7;
}

.find-lens-traces path.is-signal {
  stroke: rgba(183, 173, 255, 0.84);
  stroke-width: 1.7;
}

.find-judgment-stages {
  position: absolute;
  z-index: 5;
  inset: 4px 4%;
  display: flex;
  gap: 1px;
  align-items: stretch;
  margin: 0;
  padding: 0;
  border-inline: 1px solid rgba(203, 195, 255, 0.08);
  list-style: none;
  perspective: 760px;
}

.find-judgment-stages li {
  --slit-top: 42%;
  --slit-bottom: 58%;
  position: relative;
  width: 20%;
  min-width: 0;
  transform: rotateY(-4deg) translateY(var(--shift, 0));
}

.find-judgment-stages li:nth-child(1) { --slit-top: 36%; --slit-bottom: 64%; --shift: 2px; }
.find-judgment-stages li:nth-child(2) { --slit-top: 39%; --slit-bottom: 61%; --shift: -2px; }
.find-judgment-stages li:nth-child(3) { --slit-top: 42%; --slit-bottom: 58%; --shift: 1px; }
.find-judgment-stages li:nth-child(4) { --slit-top: 44%; --slit-bottom: 56%; --shift: -1px; }
.find-judgment-stages li:nth-child(5) { --slit-top: 46%; --slit-bottom: 54%; --shift: 0; }

.find-judgment-stages li::before,
.find-judgment-stages li::after {
  position: absolute;
  right: 0;
  left: 0;
  border-inline: 1px solid rgba(203, 195, 255, 0.08);
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.025), transparent 40%),
    linear-gradient(180deg, rgba(44, 39, 68, 0.34), rgba(17, 17, 23, 0.58));
  content: "";
}

.find-judgment-stages li::before {
  top: 32px;
  height: calc(var(--slit-top) - 32px);
  border-top: 1px solid rgba(203, 195, 255, 0.12);
}

.find-judgment-stages li::after {
  top: var(--slit-bottom);
  bottom: 6px;
  border-bottom: 1px solid rgba(203, 195, 255, 0.12);
}

.find-judgment-stages li > span {
  position: absolute;
  z-index: 8;
  top: 0;
  right: 2px;
  left: 2px;
  display: grid;
  justify-items: center;
  color: var(--muted-strong);
  font-size: clamp(10px, 0.82vw, 12px);
  line-height: 1.15;
  text-align: center;
}

.find-judgment-stages li > span b {
  color: rgba(157, 140, 255, 0.76);
  font-size: 9px;
  font-variant-numeric: tabular-nums;
  font-weight: 700;
}

.find-judgment-stages li > i {
  position: absolute;
  z-index: 7;
  top: var(--slit-top);
  right: -1px;
  bottom: calc(100% - var(--slit-bottom));
  left: -1px;
  border-block: 1px solid rgba(157, 140, 255, 0.24);
  background: rgba(157, 140, 255, 0.02);
}

.find-brief-list {
  display: grid;
  min-height: 0;
  padding: 10px 0 8px clamp(8px, 1.1vw, 16px);
  align-content: center;
  gap: clamp(11px, 1.3vh, 15px);
}

.find-brief {
  --status-color: var(--muted-strong);
  position: relative;
  display: grid;
  padding: 8px 0 9px 16px;
  grid-template-columns: minmax(82px, 0.7fr) minmax(0, 1fr);
  gap: 11px;
  border-bottom: 1px solid var(--hairline);
}

.find-brief::before {
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: 0;
  width: 2px;
  background: var(--status-color);
  content: "";
}

.find-brief--keep { --status-color: var(--complete); }
.find-brief--exclude { --status-color: var(--muted-strong); }
.find-brief--review { --status-color: var(--partial); }

.find-brief__identity {
  display: grid;
  align-content: start;
  gap: 2px;
}

.find-brief__identity small {
  color: var(--text-faint);
  font-size: 10px;
}

.find-brief__identity strong {
  color: var(--status-color);
  font-size: clamp(16px, 1.25vw, 19px);
  line-height: 1.15;
}

.find-brief dl {
  display: grid;
  min-width: 0;
  margin: 0;
  grid-template-columns: auto 1fr;
  align-content: center;
  gap: 2px 7px;
  font-size: 10.5px;
}

.find-brief dt { color: var(--text-faint); }
.find-brief dd { min-width: 0; margin: 0; color: var(--muted-strong); }

.find-proof-strip {
  min-height: 52px;
  overflow: visible;
  border: 0;
  border-top: 1px solid var(--hairline);
  border-radius: 0;
  background: transparent;
}

.find-proof-strip > .find-proof-inner {
  display: flex;
  min-height: 51px;
  align-items: center;
  justify-content: flex-end;
}

.find-proof-action .scene-action-link {
  min-height: 44px;
  padding: 0 17px;
  border-radius: var(--radius-sm);
  background: var(--text);
  color: var(--canvas);
  font-size: 12px;
  font-weight: 720;
  white-space: nowrap;
}

.find-proof-action .scene-action-link.is-locked {
  border: 1px solid var(--hairline-strong);
  background: transparent;
  color: var(--muted);
}

#find .stage-next {
  color: var(--muted);
  font-size: 10.5px;
  font-weight: 520;
}

@media (max-width: 1040px) and (min-width: 761px) {
  .find-topology-scene {
    grid-template-columns: minmax(165px, 0.75fr) minmax(350px, 1.42fr) minmax(205px, 0.88fr);
    gap: 12px;
  }

  .find-region-label strong { font-size: 15px; }
  .find-region-label span { font-size: 10px; }
  .find-fragment { width: 136px; }
  .find-brief { grid-template-columns: 72px minmax(0, 1fr); gap: 6px; }
  .find-brief dl { font-size: 10px; }
}

@media (max-height: 820px) and (min-width: 761px) {
  .find-topology-scene { height: 296px; }
  .find-lens-mechanism { margin-block: 4px 6px; }
  .find-brief-list { gap: 6px; }
  .find-brief { padding-block: 7px 8px; }
}

@media (max-width: 760px) {
  .find-chapter-bg {
    background-position: center 76%;
    filter: saturate(0.28) brightness(0.62) contrast(0.82);
    opacity: 0.34;
    -webkit-mask-image: linear-gradient(180deg, transparent 0%, transparent 50%, rgba(0, 0, 0, 0.24) 69%, #000 100%);
    mask-image: linear-gradient(180deg, transparent 0%, transparent 50%, rgba(0, 0, 0, 0.24) 69%, #000 100%);
  }

  #find::after {
    background:
      radial-gradient(ellipse 92% 58% at 50% 50%, rgba(8, 9, 10, 0.58) 0 64%, rgba(8, 9, 10, 0.32) 100%),
      linear-gradient(180deg, rgba(8, 9, 10, 0.66) 0%, rgba(8, 9, 10, 0.4) 58%, rgba(8, 9, 10, 0.7) 100%);
  }

  .find-topology-scene {
    height: 392px;
    grid-template: 78px 184px 130px / 1fr;
    gap: 0;
  }

  .find-region-label { min-height: 20px; }
  .find-region-label strong { font-size: 13px; }
  .find-region-label span { font-size: 9px; }

  .find-noise-field {
    inset: 22px 0 4px;
    -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 72%, transparent 100%);
    mask-image: linear-gradient(180deg, #000 0%, #000 72%, transparent 100%);
  }

  .find-fragment {
    width: 122px;
    padding: 4px 3px 4px 6px;
    grid-template-columns: 1fr auto;
    font-size: 9.5px;
  }

  .find-fragment small { font-size: 8.5px; }
  .find-fragment--1 { top: 1%; left: 2%; }
  .find-fragment--2 { top: 2%; left: 35%; }
  .find-fragment--3 { top: 35%; left: 9%; }
  .find-fragment--4 { top: 31%; left: 54%; }
  .find-fragment--5 { top: 62%; left: -3%; }
  .find-fragment--6 { top: 66%; left: 30%; }
  .find-fragment--7 { top: 13%; left: 68%; }
  .find-fragment--8 { top: 61%; left: 66%; }
  .find-fragment--9,
  .find-fragment--10,
  .find-fragment--11 { display: none; }
  .find-judgment-lens,
  .find-action-briefs {
    grid-template-rows: 20px minmax(0, 1fr);
  }

  .find-lens-mechanism {
    margin: 2px 0 0;
    filter: none;
  }

  .find-lens-axis {
    top: -7px;
    right: auto;
    bottom: -8px;
    left: 50%;
    width: 2px;
    height: auto;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(157, 140, 255, 0.72) 46%, rgba(225, 220, 255, 0.84) 70%, rgba(255, 255, 255, 0.2));
  }

  .find-lens-axis::before,
  .find-lens-axis::after {
    top: auto;
    left: 50%;
    transform: translateX(-50%);
  }

  .find-lens-axis::before { top: 0; }
  .find-lens-axis::after { right: auto; bottom: 0; }
  .find-lens-traces { display: none; }

  .find-judgment-stages {
    inset: 0 7%;
    flex-direction: column;
    gap: 1px;
    border-block: 1px solid rgba(203, 195, 255, 0.08);
    border-inline: 0;
    perspective: none;
  }

  .find-judgment-stages li {
    --slit-left: 43%;
    --slit-right: 57%;
    width: 100%;
    height: 20%;
    transform: translateX(var(--shift-x, 0));
  }

  .find-judgment-stages li:nth-child(1) { --slit-left: 34%; --slit-right: 66%; --shift-x: -2px; }
  .find-judgment-stages li:nth-child(2) { --slit-left: 38%; --slit-right: 62%; --shift-x: 2px; }
  .find-judgment-stages li:nth-child(3) { --slit-left: 41%; --slit-right: 59%; --shift-x: -1px; }
  .find-judgment-stages li:nth-child(4) { --slit-left: 44%; --slit-right: 56%; --shift-x: 1px; }
  .find-judgment-stages li:nth-child(5) { --slit-left: 46%; --slit-right: 54%; --shift-x: 0; }

  .find-judgment-stages li::before,
  .find-judgment-stages li::after {
    top: 0;
    bottom: 0;
    height: auto;
    border-block: 1px solid rgba(203, 195, 255, 0.08);
    border-inline: 0;
  }

  .find-judgment-stages li::before {
    right: calc(100% - var(--slit-left));
    left: 0;
  }

  .find-judgment-stages li::after {
    right: 0;
    left: var(--slit-right);
  }

  .find-judgment-stages li > i {
    top: -1px;
    right: calc(100% - var(--slit-right));
    bottom: -1px;
    left: var(--slit-left);
    border-block: 0;
    border-inline: 1px solid rgba(157, 140, 255, 0.24);
  }

  .find-judgment-stages li > span {
    top: 50%;
    right: auto;
    left: 8px;
    display: flex;
    max-width: 43%;
    align-items: baseline;
    gap: 5px;
    justify-items: normal;
    font-size: 10.5px;
    text-align: left;
    transform: translateY(-50%);
  }

  .find-judgment-stages li > span b { font-size: 8.5px; }

  .find-brief-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 7px;
    padding: 5px 0 0;
    align-content: stretch;
  }

  .find-brief {
    display: block;
    min-width: 0;
    padding: 7px 3px 6px 9px;
    border-bottom: 0;
    border-left: 1px solid var(--hairline);
  }

  .find-brief::before { top: 7px; bottom: 7px; }
  .find-brief__identity { gap: 1px; }
  .find-brief__identity small { font-size: 9px; }
  .find-brief__identity strong { font-size: 14px; }

  .find-brief dl {
    display: block;
    margin-top: 5px;
    font-size: 10px;
    line-height: 1.25;
  }

  .find-brief dt { margin-top: 3px; }
  .find-brief dd { overflow-wrap: anywhere; }

  .find-proof-strip {
    min-height: 52px;
  }

  .find-proof-strip > .find-proof-inner {
    min-height: 51px;
  }

  .find-proof-action .scene-action-link {
    width: 100%;
    min-height: 44px;
    padding-inline: 8px;
    justify-content: center;
    font-size: 11.5px;
  }

  #find .stage__footer { gap: 8px; }
  #find .stage-next { font-size: 9.5px; }
}

@media (max-width: 380px) {
  .find-topology-scene {
    height: 386px;
    grid-template-rows: 74px 182px 130px;
  }

  .find-brief-list { gap: 5px; }
  .find-brief dl { font-size: 9.5px; }
  .find-proof-action .scene-action-link { font-size: 11px; }
}

@media (prefers-reduced-motion: reduce) {
  .find-chapter-bg,
  .find-lens-axis,
  .find-lens-traces,
  .find-judgment-stages {
    animation: none !important;
    transition: none !important;
  }
}

/* 04 · Direction A: one input set, two paths, one output document */

#systemize {
  --systemize-input-width: clamp(150px, 16.5%, 184px);
  --systemize-output-width: clamp(178px, 18.5%, 220px);
  position: relative;
  overflow: hidden;
  isolation: isolate;
  background: transparent;
}

#systemize > .chapter-page__inner {
  position: relative;
  z-index: 1;
}

.systemize-flow-scene {
  position: relative;
  display: block;
  height: clamp(320px, 39vh, 356px);
  overflow: hidden;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  isolation: isolate;
}

.systemize-flow-lines {
  position: absolute;
  z-index: 1;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.systemize-input-bridge,
.systemize-merge-bridge {
  position: absolute;
  z-index: 1;
  display: block;
  overflow: visible;
  pointer-events: none;
}

.systemize-input-bridge {
  top: 109.5px;
  right: auto;
  bottom: auto;
  left: calc(1.5% + var(--systemize-input-width));
  width: max(0px, calc(18.5% - var(--systemize-input-width)));
  height: max(0px, calc(50% - 109.5px));
}

.systemize-merge-bridge {
  top: 40%;
  right: auto;
  left: 72%;
  width: max(0px, calc(26.5% - var(--systemize-output-width) - 40px));
  height: 30%;
}

.systemize-flow-lines--mobile {
  display: none;
}

.systemize-shared-line,
.systemize-manual-line,
.systemize-system-line,
.systemize-rework-direction {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}

.systemize-shared-line {
  stroke: #d8d9dc;
  stroke-width: 1.8;
}

.systemize-manual-line {
  stroke: #747983;
  stroke-width: 1.8;
}

.systemize-system-line {
  stroke: var(--interactive);
  stroke-width: 3;
}

.systemize-rework-direction {
  stroke: #8f949d;
  stroke-width: 1.6;
}

.systemize-input-stack {
  position: absolute;
  z-index: 3;
  top: 48px;
  left: 1.5%;
  display: grid;
  width: var(--systemize-input-width);
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 7px;
}

.systemize-input-document {
  position: relative;
  display: flex;
  width: auto;
  height: 58px;
  overflow: hidden;
  padding: 9px;
  align-items: flex-end;
  border: 1px solid #c4c5c9;
  border-radius: 4px;
  background: #e2e2e4;
  color: #111216;
  box-shadow: 0 5px 13px rgba(0, 0, 0, 0.18);
}

.systemize-input-document strong {
  display: block;
  font-size: 11px;
  font-weight: 760;
  line-height: 14px;
  white-space: nowrap;
}

.systemize-input-document::after {
  position: absolute;
  top: 0;
  right: 0;
  width: 0;
  height: 0;
  border-top: 9px solid #a9abb0;
  border-left: 9px solid #d2d3d6;
  content: "";
}

.systemize-track {
  position: absolute;
  z-index: 2;
  left: 20%;
  right: 20%;
  min-width: 0;
  pointer-events: none;
}

.systemize-track--manual {
  top: 0;
  height: 56%;
}

.systemize-track--system {
  top: 52%;
  height: 48%;
}

.systemize-flow-note {
  position: absolute;
  z-index: 5;
  width: max-content;
  left: 2%;
  margin: 0;
  color: var(--muted-strong);
  font-size: 18px;
  font-weight: 600;
  line-height: 24px;
  letter-spacing: 0;
  white-space: nowrap;
  pointer-events: none;
}

.systemize-flow-note--input {
  top: 18px;
  left: 1.5%;
  width: 17%;
}

.systemize-flow-note--manual {
  top: 1.5%;
  left: 50%;
  color: #b2b5bc;
  transform: translateX(-50%);
}

.systemize-flow-note--system {
  top: 84%;
  bottom: auto;
  left: 50%;
  color: var(--interactive);
  transform: translateX(-50%);
}

.systemize-flow-note--output {
  top: 18px;
  right: 1.5%;
  left: auto;
  width: var(--systemize-output-width);
}

.systemize-flow-note strong {
  color: inherit;
  font-weight: 700;
}

.systemize-path-label {
  display: block;
  font-size: 17px;
  line-height: 22px;
  letter-spacing: 0;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.systemize-path-label::before {
  position: absolute;
  top: 50%;
  right: calc(100% + 8px);
  width: 24px;
  height: 2px;
  background: #747983;
  content: "";
  transform: translateY(-50%);
}

.systemize-flow-note--system::before {
  background: var(--interactive);
}

@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .systemize-flow-note--system {
    background-image: repeating-linear-gradient(
      108deg,
      #a99aff 0 12px,
      #ff9f43 12px 15px,
      #ffd166 15px 18px,
      #8f7cff 18px 31px
    );
    background-clip: text;
    color: transparent;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
}

.systemize-path-count span {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-variant-numeric: tabular-nums;
  font-weight: 820;
}

.systemize-steps {
  position: absolute;
  inset: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.systemize-steps li {
  position: absolute;
  margin: 0;
  padding: 1px 3px 1px 14px;
  color: var(--muted-strong);
  font-size: 13px;
  font-weight: 620;
  line-height: 17px;
  white-space: nowrap;
  background: #0b0c0e;
  box-shadow: 0 0 0 3px #0b0c0e;
  transform: translate(-6px, -50%);
}

.systemize-steps li::before {
  position: absolute;
  top: 50%;
  left: 0;
  width: 7px;
  height: 7px;
  border: 1.5px solid #a1a5ac;
  border-radius: 50%;
  background: #0b0c0e;
  content: "";
  transform: translateY(-50%);
}

.systemize-track--manual li:nth-child(1) { top: 43%; left: 8%; }
.systemize-track--manual li:nth-child(2) { top: 39%; left: 22%; }
.systemize-track--manual li:nth-child(3) { top: 75%; left: 32%; }
.systemize-track--manual li:nth-child(4) { top: 26%; left: 42%; }
.systemize-track--manual li:nth-child(5) { top: 63%; left: 52%; }
.systemize-track--manual li:nth-child(6) { top: 37%; left: 62%; }
.systemize-track--manual li:nth-child(7) { top: 80%; left: 72%; }
.systemize-track--manual li:nth-child(8) { top: 58%; left: 80%; }

.systemize-track--system .systemize-steps li {
  color: var(--text);
  font-weight: 700;
}

.systemize-track--system .systemize-steps li::before {
  width: 8px;
  height: 8px;
  border: 2px solid var(--interactive);
}

.systemize-track--system li:nth-child(1) { top: 40.5%; left: 23%; }
.systemize-track--system li:nth-child(2) { top: 50%; left: 58%; }
.systemize-track--system li:nth-child(3) { top: 33.5%; left: 80%; }

.systemize-process-fork,
.systemize-process-merge {
  position: absolute;
  z-index: 3;
  border-radius: 50%;
  pointer-events: none;
}

.systemize-process-fork {
  top: 50%;
  left: 20%;
  width: 7px;
  height: 7px;
  background: #e0e1e4;
  transform: translate(-50%, -50%);
}

.systemize-process-merge {
  top: 50%;
  right: calc(1.5% + var(--systemize-output-width) + 40px);
  left: auto;
  width: 9px;
  height: 9px;
  border: 1.5px solid #ececef;
  background: #0b0c0e;
  transform: translate(50%, -50%);
}

.systemize-process-merge::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 32px;
  height: 2px;
  background: #e4e5e8;
  content: "";
  transform: translateY(-50%);
  transform-origin: left center;
}

.systemize-process-merge::before {
  position: absolute;
  z-index: 1;
  top: 50%;
  left: calc(50% + 26px);
  width: 0;
  height: 0;
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  border-left: 6px solid #e4e5e8;
  content: "";
  transform: translateY(-50%);
}

.systemize-output-document {
  position: absolute;
  z-index: 4;
  top: 48px;
  right: 1.5%;
  bottom: 12px;
  display: flex;
  width: var(--systemize-output-width);
  min-width: 0;
  overflow: hidden;
  padding: 14px;
  flex-direction: column;
  border: 1px solid #d6d7da;
  border-radius: 10px;
  background: #f4f4f5;
  color: #111216;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.26);
}

.systemize-output-document > strong {
  margin-top: 0;
  font-size: 20px;
  font-weight: 780;
  letter-spacing: -0.02em;
}

.systemize-output-document__meta {
  display: grid;
  margin-top: 13px;
  grid-template-columns: 1fr auto;
  gap: 7px 10px;
  color: #565a62;
  font-size: 9px;
}

.systemize-output-document__meta b {
  color: #111216;
  font-size: 9px;
}

.systemize-output-document__item,
.systemize-output-document__total {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  border-top: 1px solid #d5d6da;
}

.systemize-output-document__item {
  margin-top: 14px;
  padding-top: 12px;
  font-size: 9px;
}

.systemize-output-document__total {
  margin-top: 12px;
  padding-top: 11px;
  color: #555960;
  font-size: 9px;
}

.systemize-output-document__total strong {
  color: #111216;
  font-size: 18px;
}

.systemize-output-document > small {
  margin-top: auto;
  color: #666a72;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.11em;
}

.systemize-demo-entry {
  display: grid;
  width: 100%;
  min-height: 56px;
  margin: 0;
  padding-top: 12px;
  grid-template-columns: minmax(0, 1fr) var(--systemize-output-width) 1.5%;
  align-items: center;
  gap: 0;
}

.systemize-efficiency {
  display: grid;
  margin: 0;
  gap: 1px;
  color: var(--text-faint);
  font-variant-numeric: tabular-nums;
  line-height: 1.25;
  padding-right: clamp(18px, 2vw, 30px);
  text-align: right;
}

.systemize-efficiency span {
  font-size: 9.5px;
  font-weight: 600;
}

.systemize-efficiency strong {
  color: #b3b7bf;
  font-size: 11px;
  font-weight: 620;
  white-space: nowrap;
}

.systemize-demo-action {
  display: flex;
  min-width: 0;
  min-height: 44px;
  align-items: center;
  justify-content: flex-start;
}

.systemize-demo-entry .scene-action-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-size: 13px;
  font-weight: 720;
  text-decoration: none;
  white-space: nowrap;
}

.systemize-demo-entry .scene-action-link:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

#systemize .stage-next {
  margin-right: 0;
  color: var(--muted);
  font-size: 10.5px;
  font-weight: 520;
}

#systemize .stage__footer {
  padding-right: 1.5%;
}

@media (max-width: 760px) {
  #systemize {
    --systemize-input-width: 166px;
    --systemize-output-width: 214px;
  }

  .systemize-flow-scene {
    height: 354px;
  }

  .systemize-input-bridge,
  .systemize-merge-bridge {
    display: none;
  }

  .systemize-flow-lines--desktop {
    display: none;
  }

  .systemize-flow-lines--mobile {
    display: block;
  }

  .systemize-input-stack {
    top: 22px;
    left: 50%;
    width: min(
      calc(var(--systemize-input-width) + var(--systemize-input-width) + 4px),
      calc(100% - 12px)
    );
    height: 83px;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 4px;
    transform: translateX(-50%);
  }

  .systemize-input-document--history { grid-area: 1 / 1; }
  .systemize-input-document--customer { grid-area: 1 / 2; }
  .systemize-input-document--product { grid-area: 1 / 3; }
  .systemize-input-document--cost { grid-area: 1 / 4; }
  .systemize-input-document--freight { grid-area: 2 / 1; }
  .systemize-input-document--pricing { grid-area: 2 / 2; }
  .systemize-input-document--terms { grid-area: 2 / 3; }
  .systemize-input-document--tax { grid-area: 2 / 4; }

  .systemize-input-document {
    width: auto;
    height: auto;
    padding: 5px 7px;
    border-radius: 3px;
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.18);
  }

  .systemize-input-document strong {
    font-size: 9.5px;
    line-height: 12px;
  }

  .systemize-track {
    top: 33%;
    right: auto;
    width: 50%;
    height: 36.5%;
  }

  .systemize-track--manual {
    left: 0;
  }

  .systemize-track--system {
    left: 50%;
  }

  .systemize-flow-note {
    font-size: 16px;
    line-height: 20px;
    letter-spacing: 0;
  }

  .systemize-flow-note--input {
    top: 0;
    left: 50%;
    width: var(--systemize-input-width);
    transform: translateX(-50%);
  }

  .systemize-flow-note--manual {
    top: 111px;
    left: 25%;
    transform: translateX(-50%);
  }

  .systemize-flow-note--system {
    top: 111px;
    right: auto;
    bottom: auto;
    left: 75%;
    transform: translateX(-50%);
  }

  .systemize-flow-note--output {
    top: 238px;
    right: auto;
    bottom: auto;
    left: 50%;
    width: var(--systemize-output-width);
    transform: translateX(-50%);
  }

  .systemize-path-label {
    font-size: 15px;
    line-height: 20px;
  }

  .systemize-path-label::before {
    width: 20px;
    right: calc(100% + 6px);
  }

  .systemize-steps li {
    padding: 1px 3px 1px 12px;
    font-size: 13px;
    line-height: 17px;
    transform: translate(-5px, -50%);
  }

  .systemize-steps li::before {
    width: 6px;
    height: 6px;
  }

  .systemize-track--manual li:nth-child(even) {
    padding: 1px 12px 1px 3px;
    text-align: right;
    transform: translate(calc(-100% + 5px), -50%);
  }

  .systemize-track--manual li:nth-child(even)::before {
    right: 0;
    left: auto;
  }

  .systemize-track--manual li:nth-child(1) { top: 18%; left: 55%; }
  .systemize-track--manual li:nth-child(2) { top: 27%; left: 35%; }
  .systemize-track--manual li:nth-child(3) { top: 36%; left: 55%; }
  .systemize-track--manual li:nth-child(4) { top: 45%; left: 35%; }
  .systemize-track--manual li:nth-child(5) { top: 54%; left: 55%; }
  .systemize-track--manual li:nth-child(6) { top: 63%; left: 35%; }
  .systemize-track--manual li:nth-child(7) { top: 72%; left: 55%; }
  .systemize-track--manual li:nth-child(8) { top: 80%; left: 35%; }

  .systemize-track--manual li:nth-child(8) {
    padding-right: 18px;
  }

  .systemize-track--system li:nth-child(1) { top: 32%; left: 25%; }
  .systemize-track--system li:nth-child(2) { top: 51%; left: 30%; }
  .systemize-track--system li:nth-child(3) { top: 68%; left: 19%; }

  .systemize-process-fork {
    top: 39.27%;
    left: 50%;
  }

  .systemize-process-merge {
    top: 62.15%;
    right: auto;
    left: 50%;
    transform: translate(-50%, -50%);
  }

  .systemize-process-merge::after {
    transform: translateY(-50%) rotate(90deg);
  }

  .systemize-process-merge::before {
    top: calc(50% + 26px);
    left: 50%;
    border-top: 6px solid #e4e5e8;
    border-right: 4px solid transparent;
    border-bottom: 0;
    border-left: 4px solid transparent;
    transform: translateX(-50%);
  }

  .systemize-output-document {
    top: auto;
    right: auto;
    bottom: 0;
    left: 50%;
    width: var(--systemize-output-width);
    height: 94px;
    padding: 7px 10px;
    border-radius: 8px;
    transform: translateX(-50%);
  }

  .systemize-output-document > strong {
    margin-top: 0;
    font-size: 16px;
    line-height: 18px;
  }

  .systemize-output-document__meta,
  .systemize-output-document > small {
    display: none;
  }

  .systemize-output-document__item {
    margin-top: auto;
    padding-top: 5px;
    font-size: 8px;
    line-height: 11px;
  }

  .systemize-output-document__total {
    margin-top: 4px;
    padding-top: 4px;
    font-size: 8px;
    line-height: 14px;
  }

  .systemize-output-document__total strong {
    font-size: 14px;
  }

  .systemize-demo-entry {
    width: var(--systemize-output-width);
    min-height: 72px;
    margin-inline: auto;
    padding-top: 3px;
    grid-template-columns: 1fr;
    align-content: start;
    align-items: stretch;
    gap: 1px;
  }

  .systemize-efficiency {
    padding-right: 0;
    text-align: left;
  }

  .systemize-efficiency strong {
    font-size: 10.5px;
    white-space: normal;
  }

  .systemize-demo-entry .scene-action-link {
    min-height: 44px;
    font-size: 12.5px;
  }

  #systemize .stage-next {
    margin-right: calc((100% - var(--systemize-output-width)) / 2);
    font-size: 9.5px;
  }

  #systemize .stage__footer {
    padding-right: 0;
  }
}

@media (max-width: 380px) {
  #systemize {
    --systemize-input-width: 160px;
    --systemize-output-width: 208px;
  }

  .systemize-input-stack {
    width: min(
      calc(var(--systemize-input-width) + var(--systemize-input-width) + 4px),
      calc(100% - 12px)
    );
  }

  .systemize-flow-note--input {
    width: var(--systemize-input-width);
  }

  .systemize-flow-note--output {
    width: var(--systemize-output-width);
  }

  .systemize-output-document {
    width: var(--systemize-output-width);
  }

  .systemize-demo-entry {
    width: var(--systemize-output-width);
  }
}

@media (forced-colors: active) {
  .systemize-flow-note--system {
    background-image: none;
    color: CanvasText;
    -webkit-text-fill-color: currentColor;
  }
}

/* 03 · Field evidence rewrites the judgment ---------------------------- */

#validate .chapter-page__inner {
  grid-template-rows: auto minmax(276px, 1fr) auto auto;
  align-content: stretch;
}

.judgment-rewrite-scene {
  position: relative;
  min-width: 0;
  min-height: 276px;
  overflow: hidden;
  isolation: isolate;
}

.validation-rewrite-desktop {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.validation-rewrite-desktop::before,
.validation-rewrite-desktop::after {
  position: absolute;
  height: 2px;
  content: "";
}

.validation-rewrite-desktop::before {
  top: 55%;
  left: 0;
  width: 54%;
  background: rgba(181, 184, 190, 0.72);
}

.validation-rewrite-desktop::after {
  top: 60%;
  right: 6.5%;
  left: 54%;
  background: var(--interactive);
}

.validation-stage-label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.04em;
}

.validation-axis-start,
.validation-evidence-field,
.validation-evidence-cut,
.validation-rewrite-anchor,
.validation-axis-end,
.validation-evidence-legend {
  position: absolute;
}

.validation-axis-start {
  top: calc(55% - 68px);
  left: 0;
  width: 18%;
}

.validation-axis-start strong,
.validation-axis-end strong {
  display: block;
  margin-top: 7px;
  color: var(--text);
  font-size: 20px;
  font-weight: 620;
}

.validation-pending {
  display: inline-block;
  min-width: 118px;
  margin-top: 7px;
  border-bottom: 1px dashed rgba(216, 177, 92, 0.62);
  color: var(--partial);
  font-size: 12px;
}

.validation-evidence-field {
  top: 8px;
  bottom: 30px;
  left: 24%;
  width: 30%;
}

.validation-evidence-field > .validation-stage-label::after {
  display: inline-block;
  width: 42px;
  height: 1px;
  margin: 0 0 3px 10px;
  background: var(--hairline-strong);
  content: "";
}

.validation-evidence-field ol {
  position: absolute;
  inset: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.validation-evidence-field li {
  position: absolute;
  bottom: calc(45% - 4px);
  width: 1px;
  background: rgba(242, 242, 243, 0.46);
}

.validation-evidence-field li::before {
  position: absolute;
  left: -3px;
  width: 7px;
  height: 7px;
  border: 1px solid var(--muted-strong);
  border-radius: 50%;
  background: var(--canvas);
  content: "";
}

.validation-evidence-field li:nth-child(1) { left: 8%; height: 78px; }
.validation-evidence-field li:nth-child(2) { left: 50%; height: 116px; }
.validation-evidence-field li:nth-child(3) { left: 90%; height: 92px; }
.validation-evidence-field li:nth-child(1)::before,
.validation-evidence-field li:nth-child(3)::before { top: -3px; }
.validation-evidence-field li:nth-child(2)::before { bottom: -3px; }

.validation-evidence-field li strong {
  position: absolute;
  left: 12px;
  width: 96px;
  color: var(--muted-strong);
  font-size: 12px;
  font-weight: 620;
  line-height: 1.35;
  white-space: nowrap;
}

.validation-evidence-field li:nth-child(1) strong,
.validation-evidence-field li:nth-child(3) strong { top: -9px; }
.validation-evidence-field li:nth-child(2) strong { bottom: -9px; }

.validation-evidence-field li small {
  position: absolute;
  left: 12px;
  display: block;
  width: 112px;
  margin: 0;
  color: var(--text-faint);
  font-size: 10px;
  font-weight: 450;
  line-height: 1.35;
  white-space: nowrap;
}

.validation-evidence-field li:nth-child(1) small,
.validation-evidence-field li:nth-child(3) small { top: 10px; }

.validation-evidence-field li:nth-child(2) small { bottom: -26px; }

.validation-evidence-cut {
  z-index: 2;
  top: calc(55% - 5px);
  left: calc(54% - 5px);
  width: 11px;
  height: 11px;
  border: 2px solid var(--text);
  border-radius: 50%;
  background: var(--canvas);
  box-shadow: 0 0 0 7px var(--canvas);
}

.validation-evidence-cut::after {
  position: absolute;
  top: 9px;
  left: 3px;
  width: 2px;
  height: calc(5vh + 2px);
  max-height: 28px;
  background: var(--interactive);
  content: "";
}

.validation-rewrite-anchor {
  z-index: 1;
  top: calc(55% - 94px);
  left: 57%;
  width: 27%;
  min-width: 0;
}

.validation-rewrite-anchor .validation-stage-label {
  color: var(--interactive);
}

.validation-rewrite-anchor del {
  position: relative;
  display: block;
  width: max-content;
  margin-top: 8px;
  color: var(--text-faint);
  font-size: 15px;
  text-decoration-color: rgba(181, 184, 190, 0.8);
  text-decoration-thickness: 1px;
}

.validation-rewrite-anchor strong {
  display: block;
  margin-top: 4px;
  color: var(--text);
  font-size: clamp(30px, 3vw, 43px);
  font-weight: 680;
  letter-spacing: -0.04em;
  line-height: 1;
}

.validation-rewrite-anchor p {
  display: flex;
  width: max-content;
  margin: 10px 0 0;
  padding-right: 8px;
  align-items: center;
  gap: 10px;
  background: var(--canvas);
  color: var(--interactive);
  font-size: 17px;
  font-weight: 630;
  white-space: nowrap;
}

.validation-rewrite-anchor p::before {
  width: 34px;
  height: 2px;
  background: var(--interactive);
  content: "";
}

.validation-rewrite-anchor::before {
  position: absolute;
  top: 112px;
  left: -11%;
  width: 9px;
  height: 9px;
  border-bottom: 2px solid var(--interactive);
  border-left: 2px solid var(--interactive);
  content: "";
}

.validation-axis-end {
  top: calc(60% + 15px);
  right: 0;
  width: 15.5%;
}

.validation-axis-end strong {
  margin-top: 5px;
  font-size: 18px;
}

.validation-axis-end small,
.validation-axis-end em {
  display: block;
  color: var(--muted);
  font-size: 11px;
  font-style: normal;
}

.validation-axis-end em {
  margin-top: 6px;
  color: var(--muted-strong);
}

.validation-evidence-legend {
  right: 0;
  bottom: 0;
  display: flex;
  gap: 16px;
  color: var(--text-faint);
  font-size: 10px;
}

.validation-evidence-legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.validation-evidence-legend i {
  display: inline-block;
  width: 14px;
  height: 1px;
  background: var(--muted-strong);
}

.validation-evidence-legend .is-judgment i {
  height: 2px;
  background: var(--interactive);
}

.validation-evidence-legend .is-attachment i {
  width: 10px;
  height: 12px;
  border: 1px solid var(--muted);
  background: transparent;
}

.validation-evidence-legend .is-pending i {
  border-top: 1px dashed var(--partial);
  background: transparent;
}

.validation-rewrite-mobile {
  display: none;
}

#validate .validation-proof-strip {
  min-height: 72px;
  overflow: visible;
  border: 0;
  border-top: 1px solid var(--hairline-strong);
  border-bottom: 1px solid var(--hairline);
  border-radius: 0;
  background: transparent;
}

#validate .validation-proof-inner {
  display: grid;
  min-height: 72px;
  grid-template-columns: minmax(170px, 0.72fr) minmax(280px, 1.25fr) minmax(180px, 0.76fr) minmax(250px, 1fr);
  align-items: center;
}

.validation-proof-cell {
  min-width: 0;
  padding: 10px 18px;
  border-left: 1px solid var(--hairline);
  color: var(--muted);
  font-size: 12px;
}

.validation-proof-cell:first-child {
  padding-left: 0;
  border-left: 0;
}

.validation-proof-cell strong {
  display: block;
  color: var(--text);
  font-size: 13px;
  font-weight: 650;
}

.validation-proof-cell small {
  display: block;
  margin-top: 3px;
  color: var(--text-faint);
  font-size: 10px;
}

.validation-proof-action .scene-action-link {
  width: 100%;
  min-height: 44px;
  justify-content: space-between;
  color: var(--text);
  font-size: 12px;
  font-weight: 650;
}

#validate .stage-next {
  color: var(--muted);
  font-size: 10.5px;
  font-weight: 520;
}

@media (max-width: 1040px) and (min-width: 761px) {
  .validation-evidence-field {
    left: 21%;
    width: 33%;
  }

  .validation-stage-label,
  .validation-evidence-field li strong {
    font-size: 11px;
  }

  .validation-evidence-field li strong {
    width: 84px;
  }

  .validation-evidence-field li small {
    font-size: 9px;
  }

  .validation-rewrite-anchor strong {
    font-size: 36px;
  }

  .validation-rewrite-anchor p {
    font-size: 15px;
  }

  #validate .validation-proof-inner {
    grid-template-columns: minmax(150px, 0.72fr) minmax(230px, 1.1fr) minmax(145px, 0.7fr) minmax(270px, 1fr);
  }

  .validation-proof-cell {
    padding-inline: 12px;
    font-size: 11px;
  }
}

@media (max-height: 820px) and (min-width: 761px) {
  #validate .chapter-page__inner {
    grid-template-rows: auto minmax(235px, 1fr) auto auto;
  }

  .judgment-rewrite-scene {
    min-height: 235px;
  }

  .validation-evidence-field li:nth-child(1) { height: 62px; }
  .validation-evidence-field li:nth-child(2) { height: 92px; }
  .validation-evidence-field li:nth-child(3) { height: 74px; }
}

@media (max-width: 760px) {
  #validate .chapter-page__inner {
    grid-template-rows: auto minmax(330px, 1fr) auto auto;
    align-content: stretch;
  }

  .judgment-rewrite-scene {
    min-height: 330px;
  }

  .validation-rewrite-desktop {
    display: none;
  }

  .validation-rewrite-mobile {
    position: absolute;
    inset: 0;
    display: block;
    overflow: hidden;
  }

  .validation-mobile-spine,
  .validation-mobile-spine::after {
    position: absolute;
    width: 2px;
    content: "";
  }

  .validation-mobile-spine {
    top: 20px;
    bottom: 76px;
    left: 37px;
    background: rgba(181, 184, 190, 0.64);
  }

  .validation-mobile-spine::after {
    top: 48%;
    bottom: 0;
    left: 17px;
    background: var(--interactive);
  }

  .validation-mobile-spine::before {
    position: absolute;
    top: 48%;
    left: 0;
    width: 19px;
    height: 2px;
    background: var(--interactive);
    content: "";
  }

  .validation-mobile-hypothesis,
  .validation-mobile-evidence,
  .validation-mobile-anchor,
  .validation-mobile-action,
  .validation-mobile-legend {
    position: absolute;
  }

  .validation-mobile-hypothesis {
    top: 4px;
    left: 56px;
    width: calc(100% - 56px);
  }

  .validation-mobile-hypothesis::before,
  .validation-mobile-action::before {
    position: absolute;
    top: 22px;
    left: -19px;
    width: 18px;
    height: 2px;
    background: rgba(181, 184, 190, 0.74);
    content: "";
  }

  .validation-mobile-hypothesis span,
  .validation-mobile-evidence > span,
  .validation-mobile-anchor > span,
  .validation-mobile-action > span {
    color: var(--muted);
    font-size: 10px;
    font-weight: 650;
    letter-spacing: 0.04em;
  }

  .validation-mobile-hypothesis strong,
  .validation-mobile-action strong {
    display: block;
    margin-top: 2px;
    font-size: 15px;
    font-weight: 620;
  }

  .validation-mobile-evidence {
    top: 64px;
    left: 0;
    width: 160px;
    height: 104px;
  }

  .validation-mobile-evidence > span {
    position: absolute;
    top: 0;
    left: 56px;
  }

  .validation-mobile-evidence ol {
    position: absolute;
    inset: 0;
    margin: 0;
    padding: 0;
    list-style: none;
  }

  .validation-mobile-evidence li {
    position: absolute;
    right: 0;
    display: flex;
    align-items: center;
    gap: 7px;
    color: var(--muted-strong);
    font-size: 10px;
  }

  .validation-mobile-evidence li::before {
    width: 38px;
    height: 1px;
    background: var(--muted);
    content: "";
  }

  .validation-mobile-evidence li:nth-child(1) { top: 28px; }
  .validation-mobile-evidence li:nth-child(2) { top: 55px; }
  .validation-mobile-evidence li:nth-child(3) { top: 82px; }

  .validation-mobile-anchor {
    top: clamp(150px, 42%, 190px);
    right: 0;
    left: 77px;
  }

  .validation-mobile-anchor::before {
    position: absolute;
    top: 22px;
    left: -23px;
    width: 18px;
    height: 18px;
    border-bottom: 2px solid var(--interactive);
    border-left: 2px solid var(--interactive);
    content: "";
  }

  .validation-mobile-anchor > span {
    color: var(--interactive);
  }

  .validation-mobile-anchor del {
    display: block;
    margin-top: 3px;
    color: var(--text-faint);
    font-size: 11px;
  }

  .validation-mobile-anchor strong {
    display: block;
    margin-top: 1px;
    color: var(--text);
    font-size: 31px;
    font-weight: 680;
    letter-spacing: -0.04em;
    line-height: 1;
  }

  .validation-mobile-anchor p {
    margin: 7px 0 0;
    color: var(--interactive);
    font-size: 14px;
    font-weight: 630;
  }

  .validation-mobile-action {
    top: clamp(255px, 68%, 310px);
    left: 74px;
    width: calc(100% - 74px);
  }

  .validation-mobile-action::before {
    top: 19px;
    left: -18px;
    background: var(--interactive);
  }

  .validation-mobile-action small {
    color: var(--muted);
    font-size: 10px;
  }

  .validation-mobile-legend {
    right: 0;
    bottom: 0;
    left: 0;
    display: flex;
    justify-content: space-between;
    padding-top: 5px;
    border-top: 1px solid var(--hairline);
    color: var(--text-faint);
    font-size: 9px;
  }

  #validate .validation-proof-strip {
    min-height: 118px;
  }

  #validate .validation-proof-inner {
    display: grid;
    min-height: 118px;
    grid-template-columns: minmax(0, 1fr) auto;
    align-content: center;
  }

  .validation-proof-cell {
    padding: 4px 8px;
    border: 0;
    font-size: 10px;
  }

  .validation-proof-cell--asset {
    grid-column: 1;
    padding-left: 0;
  }

  .validation-proof-cell--proof {
    grid-column: 1 / -1;
    grid-row: 2;
    padding-left: 0;
  }

  .validation-proof-cell--status {
    grid-column: 2;
    grid-row: 1;
    text-align: right;
  }

  .validation-proof-cell--action {
    grid-column: 1 / -1;
    grid-row: 3;
    padding: 0;
  }

  .validation-proof-cell strong {
    font-size: 11px;
  }

  .validation-proof-cell small {
    font-size: 9px;
  }

  .validation-proof-action .scene-action-link {
    min-height: 44px;
    font-size: 12px;
  }

  #validate .stage-next {
    font-size: 9.5px;
  }
}

@media (max-width: 380px) {
  .validation-mobile-anchor {
    left: 72px;
  }

  .validation-mobile-action {
    left: 70px;
    width: calc(100% - 70px);
  }
}

/* 03 · A field-evidence cut forces one judgment track to change course */

#validate .chapter-page__inner {
  grid-template-rows: auto clamp(324px, 45.5vh, 400px) minmax(0, 1fr) auto auto;
  align-content: stretch;
  gap: clamp(8px, 1.3vh, 12px);
}

#validate .stage__header {
  grid-row: 1;
}

.validation-trajectory-scene {
  position: relative;
  grid-row: 2;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  isolation: isolate;
}

#validate .validation-proof-strip {
  grid-row: 4;
}

#validate .stage__footer {
  grid-row: 5;
}

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

.validation-trajectory--mobile {
  display: none;
}

.validation-trajectory [data-trajectory-segment] {
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 1;
  stroke-dashoffset: 0;
  vector-effect: non-scaling-stroke;
}

.validation-trajectory__bed {
  fill: none;
  stroke-width: 10;
  stroke-linecap: round;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}

.validation-trajectory__bed--upstream {
  stroke: rgba(181, 184, 190, 0.1);
}

.validation-trajectory__bed--revised {
  stroke: rgba(143, 105, 255, 0.14);
}

.validation-trajectory__upstream {
  stroke: rgba(181, 184, 190, 0.72);
}

.validation-trajectory__revised {
  stroke: var(--interactive);
}

.validation-trajectory__ghost {
  opacity: 0.56;
}

.validation-trajectory--desktop .validation-trajectory__ghost {
  stroke: url("#validation-ghost-desktop");
}

.validation-trajectory--mobile .validation-trajectory__ghost {
  stroke: url("#validation-ghost-mobile");
}

.validation-trajectory__hinge rect {
  fill: rgba(7, 7, 9, 0.94);
  stroke: rgba(242, 242, 243, 0.16);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

.validation-trajectory__hinge line {
  stroke: rgba(242, 242, 243, 0.46);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

.validation-trajectory__hinge circle {
  fill: var(--canvas);
  stroke: var(--text);
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
}

.validation-acts {
  position: absolute;
  z-index: 1;
  inset: 0;
}

.validation-act {
  position: absolute;
  min-width: 0;
}

.validation-act__heading {
  display: flex;
  align-items: baseline;
  gap: 3px;
}

.validation-act__heading span {
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.validation-act__heading strong {
  color: var(--text);
  font-size: 20px;
  font-weight: 640;
  line-height: 1.08;
}

.validation-act > p {
  margin: 7px 0 0;
  color: var(--muted-strong);
  font-size: 12px;
  line-height: 1.45;
}

.validation-act--hypothesis {
  top: 32%;
  left: 0;
  width: 18%;
}

.validation-act--hypothesis > p {
  max-width: 220px;
}

.validation-nowrap {
  white-space: nowrap;
}

.validation-act--evidence {
  top: 6.5%;
  left: 20.5%;
  width: 35.5%;
  height: 61.625%;
}

.validation-evidence-stations {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.validation-evidence-stations li {
  position: absolute;
  top: 0;
  width: 92px;
  padding-top: 12px;
  transform: translateX(-50%);
  color: var(--muted-strong);
  font-size: 11px;
  font-weight: 540;
  line-height: 1.25;
  text-align: center;
  white-space: nowrap;
}

.validation-evidence-stations li:nth-child(1) {
  left: 16.4%;
}

.validation-evidence-stations li:nth-child(2) {
  left: 53.5%;
}

.validation-evidence-stations li:nth-child(3) {
  left: 90.6%;
}

.validation-evidence-stations li::before {
  position: absolute;
  top: 0;
  left: 50%;
  width: 7px;
  height: 7px;
  transform: translate(-50%, -50%);
  border: 1px solid var(--muted-strong);
  border-radius: 50%;
  background: var(--canvas);
  content: "";
}

.validation-evidence-stations li::after {
  position: absolute;
  top: -18px;
  left: 50%;
  width: 1px;
  height: 18px;
  background: rgba(181, 184, 190, 0.24);
  content: "";
}

.validation-evidence-stations li[data-evidence-station="observation"] {
  color: var(--text);
  font-weight: 630;
}

.validation-evidence-stations li[data-evidence-station="observation"]::before {
  width: 9px;
  height: 9px;
  border-color: rgba(242, 242, 243, 0.78);
}

.validation-evidence-stations li[data-evidence-station="observation"]::after {
  background: rgba(242, 242, 243, 0.42);
}

.validation-act--rewrite {
  top: 2.5%;
  left: 61.25%;
  width: 27%;
}

.validation-act--rewrite .validation-act__heading {
  align-items: flex-end;
}

.validation-act--rewrite .validation-act__heading span {
  padding-bottom: 4px;
  color: var(--interactive);
}

.validation-act--rewrite .validation-act__heading strong {
  font-size: clamp(36px, 3.2vw, 44px);
  font-weight: 690;
  letter-spacing: -0.045em;
  line-height: 0.98;
}

.validation-act--rewrite > p {
  color: var(--interactive);
  font-size: 14px;
  font-weight: 620;
}

.validation-act--action {
  top: 46%;
  right: 0;
  width: 16%;
}

.validation-act--action > p {
  margin-top: 6px;
}

.validation-act--action > p b {
  display: block;
  margin-bottom: 2px;
  color: var(--text);
  font-size: 15px;
  font-weight: 640;
}

.validation-act--action > p span {
  display: block;
}

.validation-act--action em {
  display: block;
  margin-top: 8px;
  color: var(--muted-strong);
  font-size: 11px;
  font-style: normal;
  font-weight: 570;
}

#validate .validation-proof-cell--proof small {
  display: block;
  margin-top: 4px;
}

#validate[data-motion-state="idle"] [data-motion-part]:not([data-trajectory-segment]) {
  opacity: 0;
}

#validate[data-motion-state="idle"] [data-trajectory-segment] {
  opacity: 0;
  stroke-dashoffset: 1;
}

#validate [data-motion-part="act-1"] {
  --validation-motion-delay: 0ms;
  --validation-motion-duration: 240ms;
}

#validate [data-motion-part="gray-bed"] {
  --validation-motion-delay: 120ms;
  --validation-motion-duration: 220ms;
}

#validate [data-motion-part="gray-track"] {
  --validation-motion-delay: 120ms;
  --validation-motion-duration: 1640ms;
}

#validate [data-motion-part="ghost-track"] {
  --validation-motion-delay: 920ms;
  --validation-motion-duration: 1130ms;
}

#validate [data-motion-part="act-2"] {
  --validation-motion-delay: 540ms;
  --validation-motion-duration: 240ms;
}

#validate [data-motion-part="station-1"] {
  --validation-motion-delay: 820ms;
  --validation-motion-duration: 180ms;
}

#validate [data-motion-part="station-2"] {
  --validation-motion-delay: 1060ms;
  --validation-motion-duration: 180ms;
}

#validate [data-motion-part="station-3"] {
  --validation-motion-delay: 1320ms;
  --validation-motion-duration: 220ms;
}

#validate [data-motion-part="hinge"] {
  --validation-motion-delay: 1760ms;
  --validation-motion-duration: 240ms;
}

#validate [data-motion-part="act-3"] {
  --validation-motion-delay: 2040ms;
  --validation-motion-duration: 380ms;
}

#validate [data-motion-part="purple-bed"] {
  --validation-motion-delay: 1900ms;
  --validation-motion-duration: 260ms;
}

#validate [data-motion-part="purple-track"] {
  --validation-motion-delay: 1950ms;
  --validation-motion-duration: 910ms;
}

#validate [data-motion-part="act-4"] {
  --validation-motion-delay: 2760ms;
  --validation-motion-duration: 310ms;
}

#validate [data-motion-part="status"] {
  --validation-motion-delay: 3160ms;
  --validation-motion-duration: 240ms;
}

#validate[data-motion-state="running"] .validation-act[data-motion-part] {
  animation: validation-act-reveal var(--validation-motion-duration) var(--ease-out) var(--validation-motion-delay) both;
}

#validate[data-motion-state="running"] .validation-evidence-stations [data-motion-part],
#validate[data-motion-state="running"] .validation-trajectory__hinge[data-motion-part],
#validate[data-motion-state="running"] .validation-trajectory__bed[data-motion-part],
#validate[data-motion-state="running"] [data-motion-final] {
  animation: validation-part-reveal var(--validation-motion-duration) var(--ease-out) var(--validation-motion-delay) both;
}

#validate[data-motion-state="running"] [data-trajectory-segment] {
  animation: validation-track-draw var(--validation-motion-duration) var(--ease-out) var(--validation-motion-delay) both;
}

#validate[data-motion-state="running"] .validation-trajectory__ghost[data-motion-part="ghost-track"] {
  animation: validation-ghost-advance var(--validation-motion-duration) linear var(--validation-motion-delay) both;
}

@keyframes validation-act-reveal {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes validation-part-reveal {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes validation-track-draw {
  from {
    opacity: 0;
    stroke-dashoffset: 1;
  }
  to {
    opacity: 1;
    stroke-dashoffset: 0;
  }
}

@keyframes validation-ghost-advance {
  0% {
    opacity: 0;
    stroke-dashoffset: 1;
  }
  45%, 70% {
    opacity: 1;
    stroke-dashoffset: 0;
  }
  100% {
    opacity: 0.56;
    stroke-dashoffset: 0;
  }
}

@media (max-width: 1040px) and (min-width: 761px) {
  .validation-act--evidence {
    left: 18%;
    width: 36%;
  }

  .validation-act--rewrite {
    left: 61.5%;
  }

  .validation-act--action {
    width: 18%;
  }

  .validation-act__heading strong {
    font-size: 18px;
  }

  .validation-act--rewrite .validation-act__heading strong {
    font-size: 36px;
  }

  .validation-act > p {
    font-size: 11px;
  }

  .validation-evidence-stations li {
    width: 78px;
    font-size: 10.5px;
  }
}

@media (max-width: 760px) {
  #validate .chapter-page__inner {
    grid-template-rows: auto clamp(390px, 47vh, 405px) minmax(0, 1fr) auto auto;
  }

  .validation-trajectory--desktop {
    display: none;
  }

  .validation-trajectory--mobile {
    display: block;
  }

  .validation-act {
    right: auto;
    width: auto;
    height: auto;
  }

  .validation-act__heading {
    gap: 2px;
  }

  .validation-act__heading span {
    font-size: 10px;
  }

  .validation-act__heading strong {
    font-size: 16px;
  }

  .validation-act > p {
    margin-top: 3px;
    font-size: 11px;
    line-height: 1.35;
  }

  .validation-act--hypothesis {
    top: 0;
    left: 60px;
    width: calc(100% - 60px);
  }

  .validation-act--evidence {
    top: 15.3%;
    left: 60px;
    width: calc(100% - 60px);
    height: 35.8%;
  }

  .validation-evidence-stations {
    position: absolute;
    top: 0;
    right: auto;
    bottom: auto;
    left: 0;
    width: 100%;
    height: 100%;
  }

  .validation-evidence-stations li {
    left: 0 !important;
    width: auto;
    min-width: 100px;
    padding: 0 0 0 2px;
    transform: none;
    font-size: 11px;
    text-align: left;
  }

  .validation-evidence-stations li:nth-child(1) { top: 36.4%; }
  .validation-evidence-stations li:nth-child(2) { top: 59.7%; }
  .validation-evidence-stations li:nth-child(3) { top: 82.9%; }

  .validation-evidence-stations li::before {
    top: 6px;
    left: -20px;
    transform: translate(-50%, -50%);
  }

  .validation-evidence-stations li::after {
    top: 6px;
    left: -16px;
    width: 16px;
    height: 1px;
  }

  .validation-act--rewrite {
    top: 52.2%;
    left: 108px;
    width: calc(100% - 108px);
  }

  .validation-act--rewrite .validation-act__heading strong {
    font-size: 32px;
  }

  .validation-act--rewrite > p {
    font-size: 13px;
  }

  .validation-act--action {
    top: 79.4%;
    left: 108px;
    width: calc(100% - 108px);
  }

  .validation-act--action > p b {
    font-size: 13px;
  }

  .validation-act--action em {
    margin-top: 5px;
    font-size: 10.5px;
  }

  #validate [data-motion-part="act-1"] {
    --validation-motion-duration: 205ms;
  }

  #validate [data-motion-part="gray-bed"] {
    --validation-motion-delay: 100ms;
    --validation-motion-duration: 190ms;
  }

  #validate [data-motion-part="gray-track"] {
    --validation-motion-delay: 100ms;
    --validation-motion-duration: 1395ms;
  }

  #validate [data-motion-part="ghost-track"] {
    --validation-motion-delay: 780ms;
    --validation-motion-duration: 960ms;
  }

  #validate [data-motion-part="act-2"] {
    --validation-motion-delay: 460ms;
    --validation-motion-duration: 205ms;
  }

  #validate [data-motion-part="station-1"] {
    --validation-motion-delay: 700ms;
    --validation-motion-duration: 150ms;
  }

  #validate [data-motion-part="station-2"] {
    --validation-motion-delay: 900ms;
    --validation-motion-duration: 155ms;
  }

  #validate [data-motion-part="station-3"] {
    --validation-motion-delay: 1120ms;
    --validation-motion-duration: 190ms;
  }

  #validate [data-motion-part="hinge"] {
    --validation-motion-delay: 1495ms;
    --validation-motion-duration: 205ms;
  }

  #validate [data-motion-part="act-3"] {
    --validation-motion-delay: 1735ms;
    --validation-motion-duration: 320ms;
  }

  #validate [data-motion-part="purple-bed"] {
    --validation-motion-delay: 1615ms;
    --validation-motion-duration: 220ms;
  }

  #validate [data-motion-part="purple-track"] {
    --validation-motion-delay: 1660ms;
    --validation-motion-duration: 770ms;
  }

  #validate [data-motion-part="act-4"] {
    --validation-motion-delay: 2345ms;
    --validation-motion-duration: 265ms;
  }

  #validate [data-motion-part="status"] {
    --validation-motion-delay: 2685ms;
    --validation-motion-duration: 205ms;
  }
}

@media (prefers-reduced-motion: reduce) {
  #validate [data-motion-part] {
    animation: none !important;
    opacity: 1 !important;
  }

  #validate [data-trajectory-segment],
  #validate .validation-trajectory__bed {
    stroke-dashoffset: 0 !important;
  }

  #validate .validation-trajectory__ghost {
    opacity: 0.56 !important;
  }
}

/* 03 · Scout exploration */

.validation-systemize-continuum {
  --validation-systemize-night-image: url("./assets/chapter-03-moscow-night-dark-960.webp");
  position: fixed;
  z-index: 0;
  top: calc(var(--sticky-nav-height) + env(safe-area-inset-top));
  right: 0;
  bottom: 0;
  left: 0;
  overflow: hidden;
  visibility: hidden;
  background-color: #05080d;
  background-position: 50% 50%;
  background-repeat: no-repeat;
  background-size: cover;
  contain: strict;
  transform: translate3d(0, var(--validation-systemize-release-y, 0px), 0);
  pointer-events: none;
  will-change: transform;
}

html[data-validation-systemize-background-ready="true"] .validation-systemize-continuum {
  background-image:
    radial-gradient(ellipse at 50% 62%, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0) 16%, rgba(0, 0, 0, 0.22) 34%, rgba(0, 0, 0, 0.58) 52%, rgba(0, 0, 0, 0.88) 70%, rgba(0, 0, 0, 0.985) 100%),
    linear-gradient(180deg, rgba(3, 6, 10, 0.25), rgba(3, 6, 10, 0.16) 48%, rgba(3, 6, 10, 0.31)),
    var(--validation-systemize-night-image);
}

html[data-validation-systemize-visible="true"] .validation-systemize-continuum {
  visibility: visible;
}

.validation-systemize-continuum__dim {
  position: absolute;
  inset: 0;
  background: #08090a;
  opacity: var(--validation-systemize-dim, 0);
  pointer-events: none;
  will-change: opacity;
}

@media (min-width: 961px) {
  .validation-systemize-continuum {
    --validation-systemize-night-image: url("./assets/chapter-03-moscow-night-dark-1672.webp");
  }
}

.validation-scout-visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  clip-path: inset(50%) !important;
  border: 0 !important;
  white-space: nowrap !important;
}

#validate {
  --validation-unexplored: var(--surface);
  --validation-unexplored-text: #f5f6f7;
  --validation-unexplored-muted: #a4aab3;
  --validation-unexplored-line: rgba(255, 255, 255, 0.18);
  --validation-revealed: #05080d;
  --validation-revealed-text: #f5f6f7;
  --validation-revealed-muted: #a4aab3;
  --validation-revealed-line: rgba(255, 255, 255, 0.18);
  --validation-header-offset-y: clamp(88px, 13vh, 110px);
  --validation-upper-copy-shift-y: clamp(28px, 4.45vh, 40px);
  --validation-lower-copy-shift-y: clamp(6px, 1vh, 10px);
  --validation-night-image: url("./assets/chapter-03-moscow-night-dark-960.webp");
  --validation-night-position: 50% 50%;
  position: relative;
  overflow: hidden;
  isolation: isolate;
  border-bottom: 0;
  background: transparent;
  touch-action: pan-y;
  outline: none;
}

@media (min-width: 961px) {
  #validate {
    --validation-night-image: url("./assets/chapter-03-moscow-night-dark-1672.webp");
  }
}

#validate:focus,
#validate:focus-visible {
  outline: none;
}

#validate .validation-scout-page {
  position: relative;
  display: grid;
  height: 100%;
  min-height: 0;
  padding-block: clamp(14px, 2vh, 22px) max(12px, env(safe-area-inset-bottom));
  grid-template-rows: auto minmax(0, 1fr) 48px;
  align-content: stretch;
  gap: 10px;
}

.validation-scout-layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  min-height: 0;
  overflow: hidden;
  background-color: var(--validation-unexplored);
  background-position: var(--validation-night-position);
  background-repeat: no-repeat;
  background-size: cover;
  pointer-events: none;
}

.validation-scout-layer--fog {
  z-index: 0;
  color: var(--validation-unexplored-text);
  background-color: var(--validation-unexplored);
  background-image: none;
  mask: url(#validation-scout-fog-mask);
  -webkit-mask: url(#validation-scout-fog-mask);
}

.validation-scout-layer--facts {
  z-index: 3;
  color: var(--validation-revealed-text);
  background-color: transparent;
  background-image: none;
  mask: url(#validation-scout-mask);
  -webkit-mask: url(#validation-scout-mask);
}

.validation-mobile-reveal {
  display: none;
}

#validate .validation-scout-intro {
  display: grid;
  min-width: 0;
  grid-template-columns: minmax(160px, 0.34fr) minmax(0, 1fr);
  align-items: start;
  gap: clamp(32px, 6vw, 86px);
}

#validate .validation-scout-intro .stage__index {
  margin: 5px 0 0;
  color: var(--validation-unexplored-muted);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: normal;
}

#validate .validation-scout-intro .stage__index span {
  margin-right: 0;
  color: var(--interactive);
  font-variant-numeric: tabular-nums;
}

#validate .validation-scout-intro h2 {
  margin: 0;
  color: var(--validation-unexplored-text);
  font-size: clamp(34px, 3.55vw, 48px);
  font-weight: 630;
  line-height: 1.08;
  letter-spacing: -0.045em;
  text-wrap: balance;
}

#validate .validation-scout-intro div > p {
  margin: 8px 0 0;
  color: var(--validation-unexplored-muted);
  font-size: 14px;
  line-height: 1.55;
}

#validate .validation-scout-layer--facts .validation-scout-intro .stage__index,
#validate .validation-scout-layer--facts .validation-scout-intro div > p {
  color: var(--validation-revealed-muted);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.52);
}

#validate .validation-scout-layer--facts .validation-scout-intro h2 {
  color: var(--validation-revealed-text);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.56);
}

.validation-scout-scene {
  position: relative;
  width: 100%;
  height: 100%;
  min-width: 0;
  min-height: 0;
  overflow: visible;
}

.validation-scout-grid {
  position: relative;
  z-index: 2;
  display: grid;
  width: 100%;
  height: 100%;
  min-height: 0;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-rows: repeat(2, minmax(0, 1fr));
}

.validation-scout-copy {
  --validation-copy-shift-y: 0px;
  position: relative;
  z-index: 1;
  display: flex;
  min-width: 0;
  min-height: 0;
  padding: clamp(20px, 3.3vh, 34px) clamp(24px, 4vw, 58px);
  flex-direction: column;
  justify-content: center;
}

.validation-scout-copy > h3,
.validation-scout-copy > p {
  translate: 0 var(--validation-copy-shift-y);
}

.validation-scout-copy h3 {
  display: flex;
  margin: 0 0 clamp(8px, 1.3vh, 13px);
  align-items: center;
  gap: 9px;
  color: var(--validation-unexplored-muted);
  font-size: 10px;
  font-weight: 720;
  letter-spacing: 0.12em;
}

.validation-scout-copy h3::before {
  width: 18px;
  height: 1px;
  flex: 0 0 auto;
  content: "";
  background: currentColor;
}

.validation-scout-layer--facts .validation-scout-copy h3 {
  color: var(--validation-revealed-muted);
}

.validation-scout-copy p {
  display: grid;
  width: 100%;
  margin: 0;
  max-width: 17em;
  grid-template-columns: minmax(0, 1fr) 1em;
  align-items: center;
  gap: clamp(10px, 1.5vw, 22px);
  color: inherit;
  font-size: clamp(19px, 2.05vw, 30px);
  font-weight: 560;
  line-height: 1.28;
  letter-spacing: -0.035em;
}

.validation-scout-copy__emoji {
  display: inline-block;
  width: 1em;
  color: initial;
  font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif;
  font-size: 1em;
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0;
  text-align: center;
  text-shadow: none;
  justify-self: end;
}

.validation-scout-layer--fog .validation-scout-copy p {
  text-shadow: none;
}

.validation-scout-layer--facts .validation-scout-copy p {
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.58);
}

.validation-scout-unit {
  position: absolute;
  z-index: 8;
  top: 0;
  left: 0;
  width: 0;
  height: 0;
  visibility: hidden;
  pointer-events: none;
  will-change: transform;
}

.validation-scout-hint {
  position: absolute;
  z-index: 9;
  top: 0;
  left: 0;
  min-height: 30px;
  padding: 6px 9px;
  border: 1px solid var(--hairline-strong);
  background: rgba(8, 9, 10, 0.92);
  color: #d7dbe0;
  font-size: 10px;
  line-height: 16px;
  opacity: 0;
  transition: opacity 120ms linear;
  pointer-events: none;
  white-space: nowrap;
}

.validation-scout-hint.is-visible {
  opacity: 1;
}

.validation-scout-reduced {
  position: absolute;
  z-index: 10;
  right: max(14px, env(safe-area-inset-right));
  bottom: max(14px, env(safe-area-inset-bottom));
  display: none;
  min-height: 44px;
  padding: 0 15px;
  align-items: center;
  border: 1px solid var(--hairline-strong);
  border-radius: 0;
  background: rgba(8, 9, 10, 0.94);
  color: var(--text);
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
}

#validate[data-validation-reduced="true"] .validation-scout-reduced {
  display: inline-flex;
}

#validate[data-validation-reduced="true"] .validation-scout-reduced[hidden] {
  display: none;
}

#validate[data-validation-reduced="true"] .validation-scout-unit {
  display: none;
}

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

.validation-scout-primary {
  right: max(var(--page-padding), calc((100% - var(--page-width)) / 2));
  bottom: max(13px, env(safe-area-inset-bottom));
}

.validation-scout-action-space {
  min-height: 48px;
}

@media (min-width: 761px) {
  #validate .validation-scout-intro {
    transform: translateY(var(--validation-header-offset-y));
  }

  .validation-scout-copy:nth-child(-n + 2) {
    --validation-copy-shift-y: var(--validation-upper-copy-shift-y);
  }

  .validation-scout-copy:nth-child(n + 3) {
    --validation-copy-shift-y: var(--validation-lower-copy-shift-y);
  }
}

@media (max-width: 1040px) and (min-width: 761px) {
  #validate .validation-scout-intro {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 28px;
  }
}

@media (max-width: 760px) {
  #validate {
    background-color: var(--validation-unexplored);
  }

  #validate .validation-scout-layer--fog {
    z-index: 2;
    background-color: transparent;
    mask: none;
    -webkit-mask: none;
  }

  #validate .validation-scout-layer--facts {
    visibility: hidden;
    mask: none;
    -webkit-mask: none;
  }

  .validation-mobile-reveal {
    position: absolute;
    z-index: 1;
    inset: 0;
    display: block;
    overflow: hidden;
    pointer-events: none;
  }

  .validation-mobile-reveal__quadrant {
    position: absolute;
    width: 50%;
    height: 50%;
    overflow: hidden;
    contain: paint;
  }

  .validation-mobile-reveal__quadrant[data-validation-mobile-quadrant="0"] {
    top: 0;
    left: 0;
  }

  .validation-mobile-reveal__quadrant[data-validation-mobile-quadrant="1"] {
    top: 0;
    left: 50%;
  }

  .validation-mobile-reveal__quadrant[data-validation-mobile-quadrant="2"] {
    top: 50%;
    left: 0;
  }

  .validation-mobile-reveal__quadrant[data-validation-mobile-quadrant="3"] {
    top: 50%;
    left: 50%;
  }

  .validation-mobile-reveal__circle {
    --validation-mobile-circle-scale: 0;
    position: absolute;
    border-radius: 50%;
    background-color: var(--validation-revealed);
    background-image: var(--validation-night-image);
    background-repeat: no-repeat;
    transform: scale(var(--validation-mobile-circle-scale));
    transform-origin: 50% 50%;
    filter: brightness(1.12) contrast(1.03);
    will-change: transform;
  }

  #validate [data-mobile-copy-state="revealed"] h3,
  #validate [data-mobile-copy-state="revealed"] p {
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.68);
  }

  #validate .validation-scout-page {
    padding-top: 10px;
    grid-template-rows: auto minmax(0, 1fr) 46px;
    gap: 8px;
  }

  #validate .validation-scout-intro {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 5px;
  }

  #validate .validation-scout-intro .stage__index {
    margin: 5px 0 0;
    font-size: 10px;
  }

  #validate .validation-scout-intro h2 {
    font-size: clamp(27px, 7.5vw, 31px);
    line-height: 1.08;
  }

  #validate .validation-scout-intro div > p {
    margin-top: 4px;
    font-size: 12px;
    line-height: 1.4;
  }

  .validation-scout-copy {
    padding: clamp(13px, 2.6vh, 20px) 10px;
  }

  .validation-scout-copy:nth-child(-n + 2) {
    border-bottom: 1px solid var(--validation-unexplored-line);
  }

  .validation-scout-copy:nth-child(odd) {
    border-right: 1px solid var(--validation-unexplored-line);
  }

  .validation-scout-copy h3 {
    margin-bottom: 7px;
    gap: 6px;
    font-size: 9px;
    letter-spacing: 0.08em;
  }

  .validation-scout-copy h3::before {
    width: 12px;
  }

  .validation-scout-copy p {
    font-size: clamp(16px, 4.75vw, 19px);
    line-height: 1.34;
    gap: 6px;
  }

  .validation-scout-reduced {
    display: none !important;
  }

  .validation-scout-hint {
    top: auto;
    bottom: calc(max(8px, env(safe-area-inset-bottom)) + 54px);
    left: 50%;
    max-width: calc(100% - 40px);
    min-height: 32px;
    padding-inline: 12px;
    border-radius: 999px;
    transform: translateX(-50%) !important;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .validation-scout-primary {
    right: var(--page-padding);
  }
}

@media (max-height: 720px) and (min-width: 761px) {
  #validate .validation-scout-page {
    padding-block: 10px 8px;
    grid-template-rows: auto minmax(0, 1fr) 44px;
    gap: 5px;
  }

  #validate .validation-scout-intro h2 {
    font-size: clamp(32px, 3.4vw, 42px);
  }

  #validate .validation-scout-intro div > p {
    margin-top: 5px;
  }

  .validation-scout-copy {
    padding-block: 16px;
  }

  .validation-scout-copy h3 {
    margin-bottom: 7px;
  }
}

@media (max-height: 760px) and (max-width: 760px) {
  #validate .validation-scout-intro div > p {
    font-size: 10.5px;
  }

  .validation-scout-copy {
    padding: 11px 10px;
  }

  .validation-scout-copy h3 {
    margin-bottom: 5px;
  }

  .validation-scout-copy p {
    font-size: 15.5px;
  }
}

@media (max-height: 680px) and (max-width: 760px) {
  .validation-scout-copy {
    padding-block: 8px;
  }

  .validation-scout-copy p {
    font-size: 14.5px;
  }
}

@media (max-width: 380px) {
  #validate .validation-scout-intro h2 {
    font-size: 26px;
  }

  #validate .validation-scout-intro div > p {
    font-size: 11px;
  }
}

/* The exploration coordinate space is the complete #validate section. The
   single live CTA remains above the visual mask while its background reveals. */