:root {
  --paper: #f4f1e8;
  --paper-raised: #fbfaf6;
  --paper-deep: #e8e3d7;
  --ink: #14231f;
  --ink-soft: #42524c;
  --ink-muted: #58645f;
  --green: #173f35;
  --green-2: #24594b;
  --teal: #11675c;
  --teal-soft: #d6e9e4;
  --clay: #8e402a;
  --clay-soft: #f0ddd4;
  --line: #d7d1c4;
  --focus: #156fce;
  --white: #ffffff;

  --step-display: clamp(3.6rem, 7vw, 7.4rem);
  --step-h2: clamp(2.4rem, 4.4vw, 4.7rem);
  --step-h3: clamp(1.45rem, 2vw, 2rem);
  --step-lede: clamp(1.05rem, 1.5vw, 1.35rem);
  --step-body: 1rem;
  --step-small: 0.875rem;
  --step-micro: 0.75rem;
  --font-display: "Noto Serif KR", "Nanum Myeongjo", "KoPub Batang", "Batang", ui-serif, Georgia, serif;
  --font-body: "Pretendard Variable", Pretendard, "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;
  --space-12: 48px;
  --space-16: 64px;
  --space-22: 88px;
  --space-30: 120px;
  --space-40: 160px;
  --section-padding: clamp(5rem, 10vw, 9rem);
  --content-max: 1280px;
  --reading-max: 720px;

  --motion-fast: 180ms;
  --motion-base: 420ms;
  --motion-slow: 760ms;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.32, 0.72, 0, 1);

  --ring: 0 0 0 1px rgba(20, 35, 31, 0.09);
  --media-lift: 0 18px 60px rgba(20, 35, 31, 0.1);
  --radius-sm: 12px;
  --radius-control: 16px;
  --radius-pill: 999px;
  --radius-media-outer: 28px;
  --radius-media-inner: 22px;
}

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

html {
  background: var(--paper);
  color: var(--ink);
  font-size: 100%;
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--step-body);
  font-weight: 400;
  line-height: 1.75;
  word-break: keep-all;
  text-rendering: optimizeLegibility;
}

body,
button,
input,
textarea,
select {
  font-family: var(--font-body);
}

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

img {
  height: auto;
}

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

a {
  color: inherit;
  text-underline-offset: 0.2em;
}

button {
  border: 0;
}

button,
a,
summary {
  touch-action: manipulation;
}

::selection {
  background: var(--teal-soft);
  color: var(--ink);
}

:where(a, button, input, textarea, select, summary):focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

:where(a, button, summary):focus:not(:focus-visible) {
  outline: 0;
}

.site-shell {
  overflow-x: clip;
}

.content-wrap {
  width: min(100% - 40px, var(--content-max));
  margin-inline: auto;
}

.reading-column {
  width: min(100%, var(--reading-max));
}

.section {
  position: relative;
  padding-block: var(--section-padding);
  scroll-margin-top: 96px;
}

.section--compact {
  padding-block: var(--space-16);
}

.section--open {
  padding-block: clamp(7rem, 15vw, 12rem);
}

.section--dark {
  background: var(--green);
  color: var(--paper-raised);
}

.section--deep {
  background: var(--ink);
  color: var(--paper-raised);
}

.section-heading {
  max-width: var(--reading-max);
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--step-h2);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.08;
}

.team-heading__phrase {
  white-space: nowrap;
}

.section-intro {
  max-width: var(--reading-max);
  margin: var(--space-6) 0 0;
  color: var(--ink-soft);
  font-size: var(--step-lede);
  line-height: 1.6;
}

.section--dark .section-intro,
.section--deep .section-intro {
  color: rgba(251, 250, 246, 0.76);
}

.asymmetric-layout {
  display: grid;
  align-items: center;
  gap: clamp(var(--space-8), 6vw, var(--space-16));
}

.asymmetric-layout--hero {
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
}

.asymmetric-layout--evidence {
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
}

.asymmetric-layout__content {
  position: relative;
  z-index: 1;
}

.asymmetric-layout--hero .asymmetric-layout__content {
  transform: translateX(clamp(0px, 4vw, 64px));
}

.asymmetric-layout__media {
  min-width: 0;
}

.hero {
  min-height: min(820px, 86vh);
  padding-block: clamp(7rem, 13vw, 12rem) var(--section-padding);
}

.hero__title {
  max-width: 12ch;
  margin: var(--space-4) 0 0;
  font-family: var(--font-display);
  font-size: var(--step-display);
  font-weight: 500;
  letter-spacing: -0.065em;
  line-height: 1.08;
}

.hero__lede {
  max-width: 38rem;
  margin: var(--space-8) 0 0;
  color: var(--ink-soft);
  font-size: var(--step-lede);
  line-height: 1.65;
}

.hero__official-title {
  max-width: 42rem;
  margin: var(--space-6) 0 0;
  color: var(--green);
  font-size: var(--step-body);
  font-weight: 600;
  line-height: 1.65;
}

.hero__english {
  max-width: 42rem;
  margin: var(--space-2) 0 0;
  color: var(--ink-muted);
  font-size: var(--step-small);
  line-height: 1.55;
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-6);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-8);
}

.hero__media {
  transform: rotate(1.2deg);
}

.split-rule {
  height: 1px;
  margin-block: var(--space-12);
  background: var(--line);
}

.project-definition {
  max-width: var(--reading-max);
  margin: var(--space-8) 0 0;
  padding: var(--space-6);
  border: 0;
  border-inline-start: 3px solid var(--teal);
  background: var(--paper-raised);
  box-shadow: var(--ring);
}

.project-definition p {
  margin: 0;
  color: var(--ink-soft);
  font-size: var(--step-lede);
  line-height: 1.65;
}

.purpose-steps {
  display: grid;
  gap: 0;
  max-width: var(--reading-max);
  margin: var(--space-8) 0 0;
  padding: 0;
  list-style: none;
}

.purpose-steps li {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: var(--space-4);
  padding-block: var(--space-4);
  border-top: 1px solid var(--line);
}

.purpose-steps li:last-child {
  border-bottom: 1px solid var(--line);
}

.purpose-steps li > span {
  color: var(--green);
  font-family: var(--font-display);
  font-size: 1.45rem;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.purpose-steps strong {
  display: block;
  color: var(--green);
  font-family: var(--font-display);
  font-size: var(--step-h3);
  font-weight: 500;
  line-height: 1.2;
}

.purpose-steps p {
  margin: var(--space-2) 0 0;
  color: var(--ink-soft);
  font-size: var(--step-small);
  line-height: 1.65;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: var(--space-3);
  left: var(--space-3);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-pill);
  background: var(--green);
  color: var(--white);
  font-size: var(--step-small);
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform var(--motion-fast) var(--ease-out);
}

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

.project-nav {
  position: sticky;
  z-index: 20;
  top: var(--space-3);
  width: min(100% - 40px, 1180px);
  margin: var(--space-4) auto 0;
  border-radius: 18px;
  background: var(--green);
  color: var(--paper-raised);
  box-shadow: var(--ring);
}

.project-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 64px;
  padding: var(--space-2) var(--space-4) var(--space-2) var(--space-6);
}

.project-nav__brand {
  flex: 0 1 auto;
  color: var(--paper-raised);
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 500;
  line-height: 1.2;
  text-decoration: none;
}

.language-toggle {
  display: none;
  align-items: center;
  flex: 0 0 auto;
  gap: 6px;
  min-height: 36px;
  margin-left: auto;
  padding: 4px 10px;
  border: 1px solid rgba(251, 250, 246, 0.28);
  border-radius: var(--radius-pill);
  background: rgba(251, 250, 246, 0.08);
  color: var(--paper-raised);
  font-size: var(--step-micro);
  font-weight: 700;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: background var(--motion-fast) var(--ease-out), transform var(--motion-fast) var(--ease-spring);
}

.js .language-toggle {
  display: inline-flex;
}

.language-toggle:hover {
  background: rgba(251, 250, 246, 0.16);
}

.language-toggle:active {
  transform: scale(0.97);
}

.language-toggle__option {
  opacity: 0.48;
  transition: opacity var(--motion-fast) var(--ease-out);
}

html[lang="ko"] [data-lang-option="ko"],
html[lang="en"] [data-lang-option="en"] {
  opacity: 1;
}

.language-toggle__divider {
  opacity: 0.34;
}

html[lang="en"] .identity-card__name-en {
  display: none;
}

html[lang="en"] .hero__english {
  display: none;
}

.project-nav__menu {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-1);
  margin: 0;
  padding: 0;
  list-style: none;
}

.project-nav__link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-pill);
  color: rgba(251, 250, 246, 0.76);
  font-size: var(--step-small);
  text-decoration: none;
  transition: transform var(--motion-fast) var(--ease-spring);
}

.project-nav__link:hover,
.project-nav__link[aria-current="page"],
.project-nav__link[aria-current="true"] {
  background: var(--green-2);
  color: var(--white);
}

.project-nav__link:active {
  transform: scale(0.98);
}

.project-nav__toggle {
  display: none;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-width: 48px;
  min-height: 48px;
  padding: var(--space-2);
  border-radius: var(--radius-control);
  background: transparent;
  color: var(--white);
  cursor: pointer;
}

.project-nav__toggle-lines {
  display: grid;
  gap: 5px;
}

.project-nav__toggle-lines::before,
.project-nav__toggle-lines::after {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: var(--radius-pill);
  background: currentColor;
  content: "";
  transition: transform var(--motion-base) var(--ease-spring);
}

.project-nav__toggle-label {
  font-size: var(--step-micro);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.project-nav__details {
  display: contents;
}

.project-nav__details > summary {
  list-style: none;
}

.project-nav__details > summary::-webkit-details-marker {
  display: none;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0;
  color: var(--green);
  font-size: var(--step-micro);
  font-weight: 700;
  letter-spacing: 0.14em;
  line-height: 1.3;
  text-transform: uppercase;
}

.eyebrow--muted {
  color: var(--ink-muted);
}

.section--dark .eyebrow,
.section--deep .eyebrow,
.ethics-note .eyebrow {
  color: var(--teal-soft);
}

.status-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 28px;
  padding: var(--space-1) var(--space-3);
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-size: var(--step-small);
  font-weight: 600;
  line-height: 1.2;
  white-space: nowrap;
}

.status-chip::before {
  width: 6px;
  height: 6px;
  flex: 0 0 6px;
  border-radius: 50%;
  background: currentColor;
  content: "";
}

.status-chip--current {
  border-color: rgba(24, 121, 109, 0.24);
  background: var(--teal-soft);
  color: var(--teal);
}

.status-chip--planned {
  border-color: rgba(183, 94, 62, 0.24);
  background: var(--clay-soft);
  color: var(--clay);
}

.status-chip--neutral {
  border-color: var(--line);
  background: var(--paper-deep);
  color: var(--ink-soft);
}

.status-chip--on-dark {
  border-color: rgba(214, 233, 228, 0.25);
  background: rgba(214, 233, 228, 0.12);
  color: var(--teal-soft);
}

.action-button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-width: 148px;
  min-height: 52px;
  padding: var(--space-2) var(--space-2) var(--space-2) var(--space-6);
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-size: var(--step-small);
  font-weight: 700;
  line-height: 1.1;
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--motion-fast) var(--ease-spring), opacity var(--motion-fast) var(--ease-out);
}

.action-button__arrow {
  display: inline-grid;
  width: 36px;
  height: 36px;
  flex: 0 0 36px;
  place-items: center;
  border-radius: 50%;
  font-size: 1.15rem;
  line-height: 1;
  transition: transform var(--motion-base) var(--ease-spring);
}

.action-button--primary {
  background: var(--green);
  color: var(--paper-raised);
}

.action-button--primary .action-button__arrow {
  background: var(--paper-raised);
  color: var(--green);
}

.action-button--secondary {
  border-color: var(--green);
  background: var(--paper-raised);
  color: var(--green);
}

.action-button--secondary .action-button__arrow {
  border: 1px solid var(--green);
  background: transparent;
  color: var(--green);
}

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

.action-button:hover .action-button__arrow {
  transform: translateX(3px);
}

.action-button:active {
  transform: scale(0.98);
}

.action-button:disabled,
.action-button[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.45;
  pointer-events: none;
}

.media-frame {
  width: 100%;
  margin: 0;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius-media-outer);
  background: var(--paper-deep);
  box-shadow: var(--media-lift);
  transition: transform var(--motion-base) var(--ease-out);
}

.media-frame:focus-within {
  box-shadow: var(--media-lift), 0 0 0 3px var(--focus);
}

.media-frame__inner {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-media-inner);
  background: var(--paper-raised);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.85);
}

.media-frame__inner > img,
.media-frame__inner > video,
.media-frame__inner > svg,
.media-frame__asset {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.media-frame__caption {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-2) var(--space-2);
  color: var(--ink-soft);
  font-size: var(--step-small);
  line-height: 1.55;
}

.media-frame__caption strong {
  color: var(--ink);
  font-weight: 700;
}

.showcase-art {
  display: grid;
  min-height: 240px;
  place-items: center;
  padding: var(--space-8);
  background: var(--green);
  color: var(--paper-raised);
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1.1;
  text-align: center;
}

.evidence-gallery {
  display: grid;
  gap: var(--space-6);
}

.evidence-gallery__main {
  min-width: 0;
  transition: opacity var(--motion-base) var(--ease-out);
}

.evidence-gallery__main.is-switching {
  opacity: 0.35;
}

.evidence-gallery__selector {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.evidence-tab {
  display: grid;
  align-content: start;
  gap: var(--space-1);
  min-height: 72px;
  padding: var(--space-3);
  border: 1px solid var(--line);
  border-radius: var(--radius-control);
  background: var(--paper-raised);
  color: var(--ink-soft);
  font: inherit;
  font-size: var(--step-small);
  line-height: 1.35;
  text-align: left;
  cursor: pointer;
  transition: transform var(--motion-fast) var(--ease-spring);
}

.evidence-tab__index {
  color: var(--ink-muted);
  font-size: var(--step-micro);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.08em;
}

.evidence-tab:hover {
  border-color: var(--green-2);
  color: var(--green);
  transform: translateY(-2px);
}

.evidence-tab:active {
  transform: scale(0.98);
}

.evidence-tab[aria-selected="true"],
.evidence-tab.is-selected {
  border-color: var(--teal);
  background: var(--teal-soft);
  color: var(--green);
}

.evidence-gallery__fallback {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--line);
}

.evidence-gallery__fallback figure {
  margin: 0;
}

.evidence-gallery__fallback figcaption {
  margin-top: var(--space-2);
  color: var(--ink-muted);
  font-size: var(--step-small);
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  margin: 0;
  padding: 0;
  border-block: 1px solid var(--line);
  list-style: none;
}

.metric {
  min-width: 0;
  padding: var(--space-8) var(--space-6);
  border-inline-start: 1px solid var(--line);
}

.metric:first-child {
  padding-inline-start: 0;
  border-inline-start: 0;
}

.metric__value {
  display: block;
  margin: 0;
  color: var(--green);
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 5vw, 4.4rem);
  font-weight: 500;
  letter-spacing: -0.05em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.metric__label {
  display: block;
  margin-top: var(--space-2);
  color: var(--ink-soft);
  font-size: var(--step-small);
  line-height: 1.45;
}

.metric__qualifier {
  display: block;
  margin: var(--space-1) 0 0;
  color: var(--ink-muted);
  font-size: var(--step-micro);
  line-height: 1.45;
}

.research-tracks {
  display: grid;
  gap: 0;
}

.track-row {
  display: grid;
  grid-template-columns: minmax(120px, 2fr) minmax(0, 5fr) minmax(180px, 5fr);
  gap: clamp(var(--space-6), 5vw, var(--space-12));
  align-items: start;
  padding-block: clamp(var(--space-8), 7vw, var(--space-16));
  border-top: 1px solid var(--line);
}

.track-row:last-child {
  border-bottom: 1px solid var(--line);
}

.track-row--reverse {
  grid-template-columns: minmax(180px, 5fr) minmax(0, 5fr) minmax(120px, 2fr);
}

.track-row--reverse .track-row__index {
  order: 3;
  text-align: right;
}

.track-row--reverse .track-row__method {
  order: 1;
}

.track-row__index {
  color: var(--green);
  font-family: var(--font-display);
  font-size: clamp(3.6rem, 8vw, 7rem);
  font-weight: 500;
  letter-spacing: -0.08em;
  line-height: 0.86;
  font-variant-numeric: tabular-nums;
}

.track-row__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--step-h3);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.track-row__body {
  max-width: 42rem;
  margin: var(--space-4) 0 0;
  color: var(--ink-soft);
}

.track-row__method {
  align-self: end;
  color: var(--ink-muted);
  font-size: var(--step-small);
  line-height: 1.6;
}

.track-row__method strong {
  display: block;
  margin-bottom: var(--space-1);
  color: var(--green);
  font-size: var(--step-micro);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.roadmap {
  position: relative;
}

.roadmap__timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-6);
}

.roadmap__timeline::before {
  position: absolute;
  top: 26px;
  right: 12%;
  left: 12%;
  height: 1px;
  background: var(--line);
  content: "";
}

.roadmap-card {
  position: relative;
  z-index: 1;
  display: grid;
  align-content: start;
  gap: var(--space-4);
  min-height: 320px;
  padding: var(--space-6);
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--paper-raised);
  box-shadow: var(--ring);
}

.roadmap-card__year {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  min-width: 52px;
  min-height: 52px;
  padding: var(--space-2);
  border-radius: 50%;
  background: var(--clay-soft);
  color: var(--clay);
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
  line-height: 1;
}

.roadmap-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--step-h3);
  font-weight: 500;
  line-height: 1.2;
}

.roadmap-card__dates {
  color: var(--clay);
  font-size: var(--step-small);
  font-variant-numeric: tabular-nums;
}

.roadmap-card__body {
  margin: 0;
  color: var(--ink-soft);
  font-size: var(--step-small);
  line-height: 1.65;
}

.roadmap-card__output {
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px solid var(--line);
  color: var(--ink-muted);
  font-size: var(--step-micro);
  line-height: 1.5;
}

.roadmap-card__output strong {
  color: var(--ink-soft);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-6);
}

.identity-card {
  display: grid;
  align-content: start;
  gap: var(--space-4);
  min-height: 280px;
  padding: var(--space-6);
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--paper-raised);
  box-shadow: var(--ring);
}

.identity-card__monogram {
  display: inline-grid;
  width: 56px;
  height: 56px;
  place-items: center;
  border-radius: 50%;
  background: var(--green);
  color: var(--paper-raised);
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
  line-height: 1;
}

.identity-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--step-h3);
  font-weight: 500;
  line-height: 1.25;
}

.identity-card__name-en {
  display: block;
  margin-top: var(--space-1);
  color: var(--ink-muted);
  font-family: var(--font-body);
  font-size: var(--step-small);
  font-weight: 500;
}

.identity-card__role {
  margin: 0;
  color: var(--green);
  font-size: var(--step-small);
  font-weight: 700;
  line-height: 1.4;
}

.identity-card__affiliation {
  margin: 0;
  color: var(--ink-soft);
  font-size: var(--step-small);
  line-height: 1.55;
}

.identity-card__affiliation a {
  color: var(--green-2);
  font-weight: 600;
}

.identity-card__contribution {
  margin: auto 0 0;
  padding-top: var(--space-4);
  border-top: 1px solid var(--line);
  color: var(--ink-muted);
  font-size: var(--step-small);
  line-height: 1.55;
}

.ethics-note {
  background: var(--green);
  color: var(--paper-raised);
}

.ethics-note__grid {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(0, 2fr);
  gap: clamp(var(--space-8), 8vw, var(--space-16));
  align-items: start;
}

.ethics-note__heading {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--step-h2);
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 1.08;
}

.ethics-note__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-8) var(--space-12);
  margin: 0;
  padding: 0;
  list-style: none;
}

.ethics-note__item {
  padding-top: var(--space-4);
  border-top: 1px solid rgba(215, 209, 196, 0.35);
}

.ethics-note__item strong {
  display: block;
  margin-bottom: var(--space-2);
  color: var(--teal-soft);
  font-size: var(--step-small);
}

.ethics-note__item p {
  margin: 0;
  color: rgba(251, 250, 246, 0.78);
  font-size: var(--step-small);
  line-height: 1.65;
}

.prototype-heading,
.roadmap-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.9fr);
  gap: clamp(var(--space-8), 8vw, var(--space-16));
  align-items: end;
  margin-bottom: var(--space-12);
}

.track-heading,
.team-heading {
  max-width: var(--reading-max);
  margin-bottom: var(--space-12);
}

.mode-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  margin-block: var(--space-12);
  padding-block: var(--space-4);
  border-block: 1px solid rgba(215, 209, 196, 0.28);
  color: var(--teal-soft);
  font-size: var(--step-small);
  font-weight: 700;
}

.mode-flow i {
  color: var(--teal);
  font-style: normal;
  font-size: 1.15rem;
}

.media-frame__button {
  display: block;
  width: 100%;
  padding: 0;
  border-radius: var(--radius-media-inner);
  background: transparent;
  color: inherit;
  cursor: zoom-in;
  text-align: left;
}

.media-frame__button img {
  width: 100%;
  transition: opacity var(--motion-base) var(--ease-out), transform var(--motion-base) var(--ease-out);
}

.media-frame__button img.is-changing {
  opacity: 0;
  transform: scale(0.992);
}

.section--deep .metric-strip,
.section--deep .metric {
  border-color: rgba(251, 250, 246, 0.2);
}

.section--deep .metric__value,
.section--deep .metric__label {
  color: var(--paper-raised);
}

.section--deep .metric__qualifier {
  color: rgba(251, 250, 246, 0.68);
}

.roadmap-section {
  background: var(--paper-deep);
}

.site-footer {
  padding-block: var(--space-12) var(--space-8);
  background: var(--ink);
  color: rgba(251, 250, 246, 0.76);
}

.site-footer__inner {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(180px, 1fr);
  gap: var(--space-8);
  align-items: end;
}

.site-footer__title {
  margin: 0;
  color: var(--paper-raised);
  font-family: var(--font-display);
  font-size: var(--step-h3);
  line-height: 1.2;
}

.site-footer__inner p:not(.site-footer__title) {
  max-width: 48rem;
  margin: var(--space-3) 0 0;
  font-size: var(--step-small);
  line-height: 1.6;
}

.site-footer__links {
  display: grid;
  justify-items: end;
  gap: var(--space-2);
}

.site-footer__links a {
  color: var(--teal-soft);
  font-size: var(--step-small);
}

.site-footer__legal {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-4);
  margin-top: var(--space-12);
  padding-top: var(--space-4);
  border-top: 1px solid rgba(215, 209, 196, 0.28);
  color: rgba(251, 250, 246, 0.55);
  font-size: var(--step-micro);
}

.site-footer__legal p {
  margin: 0;
}

.image-dialog {
  width: min(calc(100% - 40px), 1100px);
  max-height: 90svh;
  padding: var(--space-4);
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--paper-raised);
  color: var(--ink);
  box-shadow: var(--media-lift);
}

.image-dialog::backdrop {
  background: rgba(20, 35, 31, 0.72);
}

.image-dialog__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-2) var(--space-2) var(--space-4);
}

.image-dialog__header h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--step-h3);
  font-weight: 500;
  line-height: 1.2;
}

.image-dialog__close {
  min-width: 64px;
  min-height: 44px;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: var(--paper);
  color: var(--green);
  font: inherit;
  font-size: var(--step-small);
  font-weight: 700;
  cursor: pointer;
}

.image-dialog > img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-control);
}

.image-dialog > p {
  margin: var(--space-3) var(--space-2) var(--space-2);
  color: var(--ink-soft);
  font-size: var(--step-small);
}

.reading-progress {
  position: fixed;
  z-index: 50;
  top: 0;
  right: 0;
  left: 0;
  height: 4px;
  overflow: hidden;
  background: transparent;
  pointer-events: none;
}

.reading-progress__bar {
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: left center;
  background: var(--teal);
  transition: transform var(--motion-fast) var(--ease-out);
}

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

.js .reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--motion-slow) var(--ease-out), transform var(--motion-slow) var(--ease-out);
}

.js .reveal.is-visible,
.js .reveal[data-revealed="true"] {
  opacity: 1;
  transform: translateY(0);
}

.reveal--delay-1 {
  transition-delay: 90ms;
}

.reveal--delay-2 {
  transition-delay: 180ms;
}

.no-js .reveal,
.reveal--static {
  opacity: 1;
  transform: none;
}

.showcase-shell {
  background: var(--paper);
}

.showcase-header {
  padding-block: clamp(6rem, 12vw, 10rem) var(--space-12);
}

.showcase-header__title {
  max-width: 16ch;
  margin: var(--space-4) 0 0;
  font-family: var(--font-display);
  font-size: var(--step-display);
  font-weight: 500;
  letter-spacing: -0.06em;
  line-height: 1.08;
}

.showcase-header__title-part {
  display: inline;
}

.showcase-header__lede {
  max-width: 42rem;
  margin: var(--space-6) 0 0;
  color: var(--ink-soft);
  font-size: var(--step-lede);
}

.showcase-section {
  padding-block: var(--space-12);
  border-top: 1px solid var(--line);
}

.showcase-section__title {
  margin: 0 0 var(--space-6);
  color: var(--green);
  font-family: var(--font-display);
  font-size: var(--step-h3);
  font-weight: 500;
}

.showcase-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-8);
}

.showcase-stack {
  display: grid;
  gap: var(--space-4);
}

.showcase-swatch {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.showcase-swatch__item {
  display: grid;
  min-width: 92px;
  min-height: 64px;
  place-items: end start;
  padding: var(--space-2);
  border: 1px solid rgba(20, 35, 31, 0.12);
  border-radius: var(--radius-sm);
  color: var(--ink);
  font-size: var(--step-micro);
  line-height: 1.1;
}

.showcase-swatch__paper {
  background: var(--paper);
}

.showcase-swatch__raised {
  background: var(--paper-raised);
}

.showcase-swatch__deep {
  background: var(--paper-deep);
}

.showcase-swatch__green {
  background: var(--green);
  color: var(--white);
}

.showcase-swatch__green-2 {
  background: var(--green-2);
  color: var(--white);
}

.showcase-swatch__teal-soft {
  background: var(--teal-soft);
}

.showcase-swatch__clay-soft {
  background: var(--clay-soft);
}

.showcase-swatch__focus {
  background: var(--focus);
  color: var(--white);
}

.showcase-note {
  margin: 0;
  padding: var(--space-4);
  border-left: 3px solid var(--teal);
  background: var(--teal-soft);
  color: var(--ink-soft);
  font-size: var(--step-small);
  line-height: 1.6;
}

@media (max-width: 960px) {
  .project-nav__inner {
    padding-inline-start: var(--space-4);
  }

  .project-nav__link {
    padding-inline: var(--space-2);
  }

  .track-row,
  .track-row--reverse {
    grid-template-columns: minmax(80px, 1fr) minmax(0, 3fr);
  }

  .track-row__method,
  .track-row--reverse .track-row__method {
    grid-column: 2;
    order: initial;
    align-self: start;
  }

  .track-row--reverse .track-row__index {
    grid-row: span 2;
    order: initial;
    text-align: left;
  }

  .ethics-note__grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 960px) {
  html {
    scroll-behavior: auto;
  }

  .content-wrap,
  .project-nav {
    width: calc(100% - 40px);
  }

  .section,
  .section--open {
    padding-block: var(--space-16);
  }

  .hero {
    min-height: 0;
    padding-block: var(--space-16);
  }

  .asymmetric-layout,
  .asymmetric-layout--hero,
  .asymmetric-layout--evidence {
    grid-template-columns: 1fr;
  }

  .asymmetric-layout--hero .asymmetric-layout__content {
    transform: none;
  }

  .prototype-heading,
  .roadmap-heading {
    grid-template-columns: 1fr;
    gap: var(--space-6);
    margin-bottom: var(--space-8);
  }

  .track-heading,
  .team-heading {
    margin-bottom: var(--space-8);
  }

  .hero__media {
    transform: none;
  }

  .hero__title {
    max-width: 11ch;
    font-size: clamp(3.35rem, 15vw, 5.4rem);
  }

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

  .action-button {
    width: 100%;
  }

  .project-nav {
    margin-top: var(--space-2);
  }

  .project-nav__inner {
    min-height: 60px;
  }

  .project-nav__details {
    display: block;
  }

  .project-nav__toggle {
    display: inline-flex;
  }

  .project-nav__menu {
    display: none;
    position: absolute;
    top: calc(100% + var(--space-2));
    right: 0;
    left: 0;
    grid-template-columns: 1fr;
    gap: var(--space-1);
    padding: var(--space-3);
    border: 1px solid var(--line);
    border-radius: 18px;
    background: var(--paper-raised);
    box-shadow: var(--media-lift);
  }

  .project-nav__details[open] .project-nav__menu,
  .project-nav[data-menu-open="true"] .project-nav__menu {
    display: grid;
  }

  .project-nav__details[open] .project-nav__toggle-lines::before {
    transform: translateY(3.5px) rotate(45deg);
  }

  .project-nav__details[open] .project-nav__toggle-lines::after {
    transform: translateY(-3.5px) rotate(-45deg);
  }

  .project-nav__link {
    width: 100%;
    justify-content: space-between;
    min-height: 48px;
    padding-inline: var(--space-4);
    border-radius: var(--radius-control);
    color: var(--green);
  }

  .project-nav__link:hover,
  .project-nav__link[aria-current="page"],
  .project-nav__link[aria-current="true"] {
    background: var(--teal-soft);
    color: var(--green);
  }

  .evidence-gallery__selector,
  .metric-strip,
  .team-grid,
  .roadmap__timeline,
  .showcase-grid {
    grid-template-columns: 1fr;
  }

  .metric {
    padding: var(--space-6) 0;
    border-inline-start: 0;
    border-top: 1px solid var(--line);
  }

  .metric:first-child {
    padding-top: var(--space-6);
    border-top: 0;
  }

  .track-row,
  .track-row--reverse {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .track-row__index,
  .track-row--reverse .track-row__index {
    grid-row: auto;
    order: initial;
    text-align: left;
  }

  .track-row__method,
  .track-row--reverse .track-row__method {
    grid-column: auto;
    order: initial;
  }

  .roadmap__timeline::before {
    top: 0;
    right: auto;
    bottom: 0;
    left: 26px;
    width: 1px;
    height: auto;
  }

  .roadmap-card {
    min-height: 0;
    margin-left: var(--space-8);
  }

  .ethics-note__list {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

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

  .site-footer__links {
    justify-items: start;
  }

  .site-footer__legal {
    display: grid;
    gap: var(--space-2);
  }

  .evidence-tab {
    min-height: 60px;
  }

  .showcase-header {
    padding-block: var(--space-16) var(--space-8);
  }

  .showcase-header__title-part {
    display: block;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal,
  .reveal.is-visible,
  .reveal[data-revealed="true"] {
    opacity: 1;
    transform: none;
  }

  .project-nav__details[open] .project-nav__toggle-lines::before,
  .project-nav__details[open] .project-nav__toggle-lines::after {
    transform: none;
  }
}

@media print {
  .project-nav,
  .reading-progress,
  .skip-link,
  .hero__actions {
    display: none;
  }

  .section,
  .hero {
    min-height: 0;
    padding-block: 32px;
  }

  .media-frame {
    box-shadow: none;
  }
}