:root {
  color-scheme: light;
  --obsidian: #101a18;
  --deep-current: #173f3a;
  --river: #39c6b0;
  --river-dark: #11675e;
  --mineral: #e9e4d8;
  --foam: #f7f5ef;
  --ember: #e87955;
  --mist: #aabdb6;
  --ink-soft: #43524e;
  --line-dark: rgba(247, 245, 239, .18);
  --line-light: rgba(16, 26, 24, .18);
  --serif: Iowan Old Style, Palatino Linotype, Book Antiqua, Palatino, Georgia, serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --page: min(1240px, calc(100vw - 64px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  color: var(--obsidian);
  background: var(--mineral);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-underline-offset: .25em;
}

a:focus-visible {
  outline: 3px solid var(--foam);
  outline-offset: 4px;
  border-radius: 2px;
  box-shadow: 0 0 0 7px var(--obsidian);
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  color: var(--obsidian);
  background: var(--foam);
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: none;
}

.site-header {
  position: relative;
  z-index: 10;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 82px;
  padding: 0 max(32px, calc((100vw - 1240px) / 2));
  color: var(--foam);
  background: var(--obsidian);
  border-bottom: 1px solid var(--line-dark);
}

.brand {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  gap: 11px;
  color: var(--foam);
  font-family: var(--serif);
  font-size: 1.55rem;
  font-weight: 700;
  letter-spacing: -.03em;
  text-decoration: none;
}

.brand img {
  display: block;
}

.site-header nav {
  display: flex;
  gap: 30px;
  color: var(--mist);
  font-size: .83rem;
  font-weight: 650;
}

.site-header nav a,
.header-cta {
  text-decoration: none;
}

.site-header nav a:hover,
.header-cta:hover {
  color: var(--river);
}

.header-cta {
  justify-self: end;
  padding-bottom: 3px;
  border-bottom: 1px solid var(--river);
  font-size: .84rem;
  font-weight: 700;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.52fr) minmax(300px, .72fr);
  align-items: center;
  gap: clamp(48px, 7vw, 110px);
  min-height: 700px;
  padding: 72px max(32px, calc((100vw - 1240px) / 2)) 80px;
  overflow: hidden;
  color: var(--foam);
  background:
    radial-gradient(circle at 73% 15%, rgba(57, 198, 176, .12), transparent 29%),
    var(--obsidian);
}

.hero::after {
  position: absolute;
  right: -70px;
  bottom: 30px;
  width: 490px;
  height: 490px;
  border: 1px solid rgba(57, 198, 176, .12);
  border-radius: 50%;
  content: "";
}

.hero-current {
  position: absolute;
  inset: auto 0 74px 0;
  height: 140px;
  opacity: .3;
  pointer-events: none;
  transform: rotate(-3deg) scale(1.05);
}

.hero-current span {
  position: absolute;
  left: -4%;
  width: 108%;
  height: 52px;
  border-top: 1px solid var(--river);
  border-radius: 50%;
}

.hero-current span:nth-child(2) {
  top: 24px;
  opacity: .55;
}

.hero-current span:nth-child(3) {
  top: 48px;
  opacity: .25;
}

.hero-copy,
.hero-card {
  position: relative;
  z-index: 1;
}

.eyebrow,
.section-label,
.evidence-tag,
.layer-state,
.boundary-kicker {
  font-family: var(--mono);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .14em;
  line-height: 1.4;
  text-transform: uppercase;
}

.eyebrow {
  margin: 0 0 28px;
  color: var(--river);
}

.eyebrow.dark {
  color: var(--river-dark);
}

.mobile-status {
  display: none;
}

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

h1,
h2 {
  font-family: var(--serif);
  font-weight: 500;
  letter-spacing: -.045em;
  line-height: .98;
}

h1 {
  max-width: 830px;
  margin-bottom: 30px;
  font-size: clamp(3.9rem, 7.2vw, 7rem);
}

h1 em {
  color: var(--river);
  font-weight: 500;
}

.hero-lede {
  max-width: 660px;
  margin-bottom: 18px;
  color: #dfe9e5;
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  line-height: 1.45;
}

.hero-audience {
  max-width: 690px;
  margin-bottom: 34px;
  color: var(--mist);
  font-size: .95rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 20px;
  border: 1px solid transparent;
  font-size: .86rem;
  font-weight: 750;
  text-decoration: none;
}

.button-primary {
  color: var(--obsidian);
  background: var(--river);
}

.button-primary:hover,
.button-light:hover {
  background: #69d8c6;
}

.button-secondary {
  color: var(--foam);
  border-color: rgba(247, 245, 239, .35);
}

.button-secondary:hover,
.button-outline:hover {
  color: var(--river);
  border-color: var(--river);
}

.hero-card {
  align-self: end;
  margin-bottom: 4px;
  padding: 30px;
  background: rgba(23, 63, 58, .73);
  border: 1px solid rgba(57, 198, 176, .35);
  backdrop-filter: blur(8px);
}

.status-line {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 32px;
  color: var(--river);
  font-family: var(--mono);
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .11em;
  text-transform: uppercase;
}

.status-dot {
  width: 8px;
  height: 8px;
  border: 2px solid var(--river);
  border-radius: 50%;
}

.hero-card h2 {
  margin-bottom: 16px;
  font-size: 2.4rem;
}

.hero-card p {
  color: #d7e2de;
  font-size: .9rem;
}

.hero-card .status-warning {
  margin: 24px 0;
  padding-top: 20px;
  color: #f2e8df;
  border-top: 1px solid var(--line-dark);
}

.status-warning strong {
  color: #ffae8f;
}

.hero-card a {
  color: var(--river);
  font-size: .82rem;
  font-weight: 750;
}

.boundary-note {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  color: var(--obsidian);
  background: var(--river);
}

.boundary-note p {
  margin: 0;
  padding: 23px clamp(24px, 3vw, 46px);
  border-right: 1px solid rgba(16, 26, 24, .24);
  font-size: .78rem;
  line-height: 1.5;
}

.boundary-note p:last-child {
  border-right: 0;
}

.boundary-note span {
  display: block;
  margin-bottom: 7px;
  font-family: var(--mono);
  font-size: .62rem;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.section {
  padding: clamp(80px, 11vw, 150px) max(32px, calc((100vw - 1240px) / 2));
}

.section-label {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 70px;
  color: var(--river-dark);
}

.section-label::before {
  width: 34px;
  height: 1px;
  background: currentColor;
  content: "";
}

.section h2 {
  font-size: clamp(2.8rem, 5.3vw, 5.2rem);
}

.mission {
  background: var(--foam);
}

.section-intro {
  display: grid;
  grid-template-columns: .55fr 1.45fr;
  gap: 64px;
  align-items: start;
}

.kicker {
  color: var(--river-dark);
  font-family: var(--serif);
  font-size: 1.32rem;
  font-style: italic;
  line-height: 1.35;
}

.section-intro h2 {
  max-width: 900px;
  margin-bottom: 72px;
}

.mission-grid {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: clamp(60px, 10vw, 150px);
  margin-left: calc(27.5% + 17px);
  padding-top: 46px;
  border-top: 1px solid var(--line-light);
}

.large-copy {
  font-family: var(--serif);
  font-size: clamp(1.45rem, 2.3vw, 2.1rem);
  line-height: 1.35;
}

.mission-detail {
  color: var(--ink-soft);
  font-size: .94rem;
}

.text-link {
  display: inline-block;
  margin-top: 12px;
  color: var(--river-dark);
  font-size: .83rem;
  font-weight: 750;
}

.problem {
  background: var(--mineral);
}

.problem-heading,
.evidence-heading,
.roadmap-heading,
.architecture-heading {
  display: grid;
  grid-template-columns: 1.25fr .75fr;
  gap: 80px;
  align-items: end;
  margin-bottom: 70px;
}

.problem-heading h2,
.evidence-heading h2,
.roadmap-heading h2,
.architecture-heading h2 {
  margin-bottom: 0;
}

.problem-heading p,
.evidence-heading p,
.roadmap-heading p,
.architecture-heading p {
  color: var(--ink-soft);
}

.problem-grid,
.evidence-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line-light);
  border-bottom: 1px solid var(--line-light);
}

.problem-grid article,
.evidence-grid article {
  padding: 38px 34px 36px 0;
  border-right: 1px solid var(--line-light);
}

.problem-grid article:not(:first-child),
.evidence-grid article:not(:first-child) {
  padding-left: 34px;
}

.problem-grid article:last-child,
.evidence-grid article:last-child {
  border-right: 0;
}

.problem-grid span {
  color: var(--river-dark);
  font-family: var(--mono);
  font-size: .68rem;
}

.problem-grid h3,
.evidence-grid h3 {
  margin: 42px 0 16px;
  font-family: var(--serif);
  font-size: 1.55rem;
  line-height: 1.18;
}

.problem-grid p,
.evidence-grid p {
  color: var(--ink-soft);
  font-size: .9rem;
}

.audiences {
  color: var(--foam);
  background: var(--deep-current);
}

.audiences .section-label,
.architecture .section-label,
.boundaries .section-label {
  color: var(--river);
}

.audience-layout,
.open-layout {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 100px;
}

.audience-layout h2 {
  position: sticky;
  top: 120px;
  align-self: start;
  font-size: clamp(2.7rem, 4.8vw, 4.8rem);
}

.audience-layout ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.audience-layout li {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 14px;
  padding: 30px 0;
  border-top: 1px solid var(--line-dark);
  color: #e0e8e5;
  font-family: var(--serif);
  font-size: clamp(1.15rem, 2vw, 1.55rem);
  line-height: 1.4;
}

.audience-layout li:last-child {
  border-bottom: 1px solid var(--line-dark);
}

.audience-layout li span {
  color: var(--river);
  font-family: var(--mono);
  font-size: .67rem;
  line-height: 2.2;
}

.architecture {
  color: var(--foam);
  background: var(--obsidian);
}

.architecture-heading p {
  color: var(--mist);
}

.layer-list {
  margin: 0 0 42px;
  padding: 0;
  border-top: 1px solid var(--line-dark);
  list-style: none;
}

.layer {
  display: grid;
  grid-template-columns: 70px 1fr 160px;
  gap: 30px;
  align-items: center;
  padding: 31px 0;
  border-bottom: 1px solid var(--line-dark);
}

.layer-product {
  background: linear-gradient(90deg, rgba(57, 198, 176, .1), transparent 65%);
}

.layer-number,
.layer-side {
  color: var(--mist);
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.layer h3 {
  margin: 5px 0;
  font-family: var(--serif);
  font-size: clamp(1.45rem, 2.3vw, 2rem);
  font-weight: 500;
}

.layer p {
  max-width: 750px;
  margin-bottom: 0;
  color: var(--mist);
  font-size: .87rem;
}

.layer .layer-state {
  color: var(--river);
  font-size: .6rem;
}

.layer .planned {
  color: #ffae8f;
}

.layer-side {
  justify-self: end;
}

.text-link.on-dark {
  color: var(--river);
}

.themis {
  background: var(--foam);
}

.themis-grid {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 120px;
}

.themis h2 {
  margin-bottom: 28px;
}

.themis-lede {
  max-width: 450px;
  color: var(--river-dark);
  font-family: var(--serif);
  font-size: 1.55rem;
  line-height: 1.35;
}

.themis-copy {
  color: var(--ink-soft);
  font-size: 1.02rem;
}

.callout {
  margin: 32px 0 22px;
  padding: 24px;
  color: var(--obsidian);
  background: var(--mineral);
  border-left: 4px solid var(--ember);
}

.evidence-section {
  background: var(--mineral);
}

.evidence-tag {
  color: var(--river-dark) !important;
  font-size: .63rem !important;
}

.evidence-grid h3 {
  margin-top: 28px;
}

.evidence-grid a {
  display: inline-block;
  margin-top: 15px;
  color: var(--river-dark);
  font-size: .8rem;
  font-weight: 750;
}

.roadmap {
  background: var(--foam);
}

.roadmap-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  margin: 0 0 48px;
  padding: 0;
  border-top: 1px solid var(--line-light);
  list-style: none;
}

.roadmap-list li {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 18px;
  padding: 30px 34px 30px 0;
  border-bottom: 1px solid var(--line-light);
}

.roadmap-list li:nth-child(odd) {
  border-right: 1px solid var(--line-light);
}

.roadmap-list li:nth-child(even) {
  padding-left: 34px;
}

.roadmap-list span {
  color: var(--river-dark);
  font-family: var(--mono);
  font-size: .67rem;
}

.roadmap-list h3 {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: 1.35rem;
}

.roadmap-list p {
  margin: 0;
  color: var(--ink-soft);
  font-size: .86rem;
}

.button-dark {
  color: var(--foam);
  background: var(--deep-current);
}

.button-dark:hover {
  background: var(--obsidian);
}

.boundaries {
  color: var(--foam);
  background: var(--obsidian);
}

.boundaries-layout {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 100px;
  margin-bottom: 30px;
}

.boundary-kicker {
  color: #ffae8f;
}

.boundaries h2 {
  font-size: clamp(2.7rem, 4.7vw, 4.7rem);
}

.boundary-list {
  border-top: 1px solid var(--line-dark);
}

.boundary-list article {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 28px;
  padding: 25px 0;
  border-bottom: 1px solid var(--line-dark);
}

.boundary-list span {
  color: var(--river);
  font-family: var(--mono);
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.boundary-list p {
  margin: 0;
  color: var(--mist);
  font-size: .88rem;
}

.open-source {
  background: var(--mineral);
}

.open-layout h2 {
  font-size: clamp(2.7rem, 4.6vw, 4.6rem);
}

.open-layout > div {
  color: var(--ink-soft);
  font-size: 1rem;
}

.inline-links {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--line-light);
}

.inline-links a {
  color: var(--river-dark);
  font-size: .82rem;
  font-weight: 750;
}

.contribute {
  position: relative;
  overflow: hidden;
  color: var(--foam);
  text-align: center;
  background: var(--deep-current);
}

.contribute-current {
  position: absolute;
  top: 15%;
  left: 50%;
  width: 720px;
  height: 720px;
  border: 1px solid rgba(57, 198, 176, .16);
  border-radius: 50%;
  transform: translateX(-50%);
}

.contribute > *:not(.contribute-current) {
  position: relative;
  z-index: 1;
}

.contribute h2 {
  max-width: 850px;
  margin-right: auto;
  margin-left: auto;
}

.contribute > p:not(.eyebrow) {
  max-width: 670px;
  margin: 0 auto 36px;
  color: #d8e3df;
}

.centered {
  justify-content: center;
}

.button-light {
  color: var(--obsidian);
  background: var(--river);
}

.button-outline {
  color: var(--foam);
  border-color: rgba(247, 245, 239, .4);
}

footer {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 30px;
  padding: 30px max(32px, calc((100vw - 1240px) / 2));
  color: var(--mist);
  background: var(--obsidian);
  border-top: 1px solid var(--line-dark);
  font-size: .73rem;
}

footer p {
  margin: 0;
}

.footer-brand {
  font-size: 1.25rem;
}

.footer-status {
  color: #ffae8f;
}

footer > div {
  display: flex;
  gap: 18px;
}

footer > div a:hover {
  color: var(--river);
}

@media (max-width: 980px) {
  :root {
    --page: min(100% - 48px, 760px);
  }

  .site-header {
    grid-template-columns: 1fr auto;
    padding: 0 24px;
  }

  .site-header nav {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 54px;
    padding: 64px 32px 70px;
  }

  .hero-card {
    max-width: 620px;
  }

  .boundary-note {
    grid-template-columns: 1fr;
  }

  .boundary-note p {
    border-right: 0;
    border-bottom: 1px solid rgba(16, 26, 24, .24);
  }

  .section {
    padding-right: 32px;
    padding-left: 32px;
  }

  .section-intro,
  .mission-grid,
  .problem-heading,
  .evidence-heading,
  .roadmap-heading,
  .architecture-heading,
  .audience-layout,
  .themis-grid,
  .boundaries-layout,
  .open-layout {
    grid-template-columns: 1fr;
    gap: 36px;
    margin-left: 0;
  }

  .audience-layout h2 {
    position: static;
  }

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

  .problem-grid article,
  .problem-grid article:not(:first-child),
  .evidence-grid article,
  .evidence-grid article:not(:first-child) {
    padding: 30px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line-light);
  }

  .roadmap-list {
    grid-template-columns: 1fr;
  }

  .roadmap-list li,
  .roadmap-list li:nth-child(even) {
    padding: 28px 0;
    border-right: 0;
  }

  .layer {
    grid-template-columns: 48px 1fr;
  }

  .layer-side {
    display: none;
  }

  footer {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 560px) {
  .site-header {
    min-height: 70px;
    padding: 0 20px;
  }

  .brand {
    font-size: 1.3rem;
  }

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

  .header-cta {
    font-size: .72rem;
  }

  .hero {
    min-height: 0;
    padding: 52px 20px 58px;
  }

  h1 {
    font-size: clamp(3rem, 15vw, 4.2rem);
  }

  .mobile-status {
    display: block;
    margin-top: 7px;
    color: #ffae8f;
    font-size: .62rem;
    letter-spacing: .08em;
  }

  .hero-card {
    padding: 24px;
  }

  .button {
    width: 100%;
  }

  .boundary-note p,
  .section {
    padding-right: 20px;
    padding-left: 20px;
  }

  .section-label {
    margin-bottom: 45px;
  }

  .section h2 {
    font-size: clamp(2.45rem, 12vw, 3.5rem);
  }

  .section-intro h2 {
    margin-bottom: 28px;
  }

  .mission-grid {
    padding-top: 30px;
  }

  .audience-layout li {
    grid-template-columns: 34px 1fr;
  }

  .layer {
    grid-template-columns: 34px 1fr;
    gap: 12px;
  }

  .boundary-list article {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .contribute-current {
    width: 440px;
    height: 440px;
  }

  footer {
    grid-template-columns: 1fr;
    padding: 30px 20px;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media (forced-colors: active) {
  .status-dot,
  .hero-card,
  .button,
  .callout {
    border: 1px solid CanvasText;
  }
}