:root {
  --paper: #faf9f5;
  --paper-2: #f2f0e9;
  --ink: #1d2537;
  --ink-2: #525a6e;
  --ink-3: #8d93a4;
  --accent: #a34b53;
  --accent-deep: #8b3f47;
  --accent-soft: #d98a91;
  --line: rgba(29, 37, 55, .14);
  --line-soft: rgba(29, 37, 55, .07);
  --dark: #161d2e;
  --dark-2: #101625;
  --dark-text: #ebecf2;
  --dark-muted: #9da4b8;
  --dark-line: rgba(235, 236, 242, .14);
  --serif: "EB Garamond", "Iowan Old Style", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --max: 1160px;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink-2);
  background: var(--paper);
  font: 17px/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 {
  margin-bottom: 0;
  color: var(--ink);
  font-family: var(--serif);
  font-weight: 500;
  line-height: 1.04;
  letter-spacing: -.018em;
}
a { color: inherit; }
button, input { font: inherit; }
::selection { background: color-mix(in srgb, var(--accent) 22%, transparent); }

.wrap {
  width: min(100% - 40px, var(--max));
  margin: 0 auto;
}
.band { padding: clamp(86px, 11vw, 148px) 0; border-top: 1px solid var(--line-soft); }
.band-alt { background: var(--paper-2); border-block-color: var(--line-soft); }
.band-dark { color: var(--dark-muted); background: var(--dark); border-top: 0; }
.band-dark h2, .band-dark h3 { color: var(--dark-text); }

.eyebrow {
  margin-bottom: 22px;
  color: var(--accent);
  font: 500 11px/1.4 var(--mono);
  letter-spacing: .2em;
  text-transform: uppercase;
}
.band-dark .eyebrow { color: var(--accent-soft); }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 24px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  color: white;
  background: var(--accent);
  font: 500 11px/1 var(--mono);
  letter-spacing: .11em;
  text-decoration: none;
  text-transform: uppercase;
  cursor: pointer;
  transition: background .16s, border-color .16s, transform .16s;
}
.button:hover { border-color: var(--accent-deep); background: var(--accent-deep); transform: translateY(-1px); }
.button:active { transform: translateY(0) scale(.985); }
.button:disabled { opacity: .58; cursor: wait; transform: none; }
.button-small { min-height: 39px; padding-inline: 17px; font-size: 10px; }
.text-link {
  padding-bottom: 5px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  font: 500 11px/1.4 var(--mono);
  letter-spacing: .1em;
  text-decoration: none;
  text-transform: uppercase;
  transition: color .16s, border-color .16s;
}
.text-link:hover { border-color: var(--accent); color: var(--accent); }

.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 60;
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 18px max(20px, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid transparent;
  transition: padding .2s, background .2s, border-color .2s;
}
.nav.scrolled {
  padding-block: 12px;
  border-bottom-color: var(--line-soft);
  background: color-mix(in srgb, var(--paper) 90%, transparent);
  backdrop-filter: blur(12px);
}
.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  font: 600 16px/1 var(--serif);
  letter-spacing: .14em;
  text-decoration: none;
  text-transform: uppercase;
}
.brand-mark { display: block; width: 30px; height: 30px; border-radius: 7px; }
.nav-links { display: flex; gap: 29px; margin-left: auto; }
.nav-links a {
  position: relative;
  color: var(--ink-2);
  font: 500 10px/1 var(--mono);
  letter-spacing: .12em;
  text-decoration: none;
  text-transform: uppercase;
  transition: color .16s;
}
.nav-links a::after {
  content: "";
  position: absolute;
  right: .12em;
  bottom: -7px;
  left: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .16s;
}
.nav-links a:hover, .nav-links a.is-current { color: var(--ink); }
.nav-links a.is-current::after { transform: scaleX(1); }

.hero {
  position: relative;
  isolation: isolate;
  display: grid;
  min-height: 92vh;
  align-items: center;
  padding: clamp(150px, 20vh, 210px) 0 clamp(92px, 12vw, 150px);
  text-align: center;
}
.hero::before {
  content: "";
  position: absolute;
  inset: -10% -20%;
  z-index: -1;
  background:
    radial-gradient(640px 420px at 68% 18%, color-mix(in srgb, var(--accent) 6%, transparent), transparent 65%),
    radial-gradient(520px 380px at 22% 78%, color-mix(in srgb, var(--ink) 4%, transparent), transparent 65%);
  pointer-events: none;
}
.hero-inner { max-width: 900px; }
.hero h1 {
  max-width: 15ch;
  margin: 0 auto 29px;
  font-size: clamp(3rem, 6.4vw, 5.4rem);
  line-height: .98;
  letter-spacing: -.026em;
  text-wrap: balance;
}
.hero h1 em { color: var(--accent); font-style: italic; }
.lede {
  max-width: 59ch;
  margin: 0 auto;
  color: var(--ink-2);
  font-size: clamp(1.05rem, 1.5vw, 1.24rem);
  line-height: 1.62;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 23px;
  margin: 40px 0 44px;
}
.provenance {
  margin: 0;
  color: var(--ink-3);
  font: 10px/1.9 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
}
.provenance a { border-bottom: 1px solid var(--line); color: var(--ink-2); text-decoration: none; }
.provenance a:hover { border-color: var(--accent); color: var(--accent); }

.scale-grid {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  gap: clamp(48px, 7vw, 104px);
  align-items: center;
}
.scale-copy h2, .section-heading h2 {
  margin-bottom: 23px;
  font-size: clamp(2rem, 4vw, 3rem);
  text-wrap: balance;
}
.scale-copy > p:last-of-type, .section-heading > p:last-child {
  max-width: 61ch;
  margin-bottom: 0;
  font-size: 1.02rem;
  line-height: 1.72;
}
.scale-figure { display: grid; gap: 31px; margin: 0; }
.bar-row { display: grid; gap: 9px; }
.bar-label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  color: var(--ink-2);
  font: 500 10px/1.5 var(--mono);
  letter-spacing: .09em;
  text-transform: uppercase;
}
.bar-label strong {
  color: var(--ink);
  font: 500 clamp(1.05rem, 1.7vw, 1.35rem)/1 var(--serif);
  letter-spacing: -.01em;
  white-space: nowrap;
}
.bar-label small {
  display: block;
  margin-top: 2px;
  color: var(--ink-3);
  font-weight: 400;
  letter-spacing: .04em;
}
.bar-track {
  height: 24px;
  overflow: hidden;
  border-radius: 3px;
  background: var(--paper-2);
  box-shadow: inset 0 0 0 1px var(--line-soft);
}
.bar-fill { width: 100%; height: 100%; }
.bar-public {
  display: grid;
  grid-template-columns: 25fr 14fr 2fr 24fr 20fr;
  width: 96.59%;
}
.bar-public > i + i { border-left: 1px solid color-mix(in srgb, var(--paper) 65%, transparent); }
.bar-openneuro { background: var(--ink); }
.bar-ukbb { background: color-mix(in srgb, var(--ink) 74%, var(--paper)); }
.bar-hcp { background: var(--accent); }
.bar-abcd { background: color-mix(in srgb, var(--accent) 66%, var(--ink)); }
.bar-other { background: var(--ink-3); }
.bar-network {
  display: grid;
  grid-template-columns: repeat(22, 1fr);
  width: 100%;
  background: var(--accent);
}
.bar-network i { border-right: 1px solid color-mix(in srgb, var(--paper) 45%, transparent); }
.bar-network i:last-child { border-right: 0; }
.bar-key {
  display: flex;
  flex-wrap: wrap;
  gap: 5px 13px;
  color: var(--ink-3);
  font: 8px/1.5 var(--mono);
  letter-spacing: .03em;
  text-transform: uppercase;
}
.bar-key span { display: inline-flex; align-items: center; gap: 5px; white-space: nowrap; }
.bar-key i { display: inline-block; width: 7px; height: 7px; border-radius: 1px; }
.bar-row > p {
  margin: 0;
  color: var(--ink-3);
  font: 9px/1.5 var(--mono);
  letter-spacing: .06em;
  text-transform: uppercase;
}
.plot-block { border-top: 1px solid var(--line-soft); }
.scaling-plot { padding-top: 24px; }
.scaling-plot svg { display: block; width: 100%; height: auto; overflow: visible; }
.plot-grid { fill: none; stroke: var(--line-soft); stroke-width: 1; }
.plot-axis { fill: none; stroke: color-mix(in srgb, var(--ink) 45%, transparent); stroke-width: 1; }
.plot-curve { fill: none; stroke: var(--accent); stroke-width: 2.5; }
.plot-forecast {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2.5;
  stroke-dasharray: 7 7;
}
.plot-frontier {
  fill: none;
  stroke: var(--ink-3);
  stroke-width: 1;
  stroke-dasharray: 2 5;
  opacity: .6;
}
.plot-points { fill: var(--paper); stroke: var(--ink); stroke-width: 1.5; }
.plot-current { fill: var(--ink); }
.plot-target-halo {
  fill: color-mix(in srgb, var(--accent) 14%, transparent);
  stroke: color-mix(in srgb, var(--accent) 25%, transparent);
  stroke-width: 1;
}
.plot-future { fill: var(--paper); stroke: var(--accent); stroke-width: 2; }
.plot-guide {
  fill: none;
  stroke: color-mix(in srgb, var(--ink-2) 58%, transparent);
  stroke-width: 1;
}
.scaling-plot text {
  fill: var(--ink-3);
  font: 500 8px var(--mono);
  letter-spacing: .05em;
}
.scaling-plot text.plot-callout-title {
  fill: var(--ink);
  font-size: 9px;
  letter-spacing: .06em;
}
.scaling-plot text.plot-callout-note {
  fill: var(--ink-2);
  font-size: 8.5px;
  letter-spacing: 0;
}
.scaling-plot text.plot-frontier-label { font-size: 8px; }
.scaling-plot text.plot-axis-label {
  fill: var(--ink-2);
  font-size: 8px;
  letter-spacing: .08em;
}
.plot-caption {
  margin: 3px 0 0;
  color: var(--ink-3);
  font: 8px/1.5 var(--mono);
  letter-spacing: .03em;
  text-align: center;
}
.plot-caption a { border-bottom: 1px solid var(--line); color: var(--ink-2); text-decoration: none; }
.plot-caption a:hover { border-color: var(--accent); color: var(--accent); }
.section-heading { max-width: 760px; }
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(21px, 3vw, 38px);
  margin-top: clamp(48px, 6vw, 76px);
}
.step { padding-top: 21px; border-top: 1px solid var(--line); transition: border-color .2s; }
.step:hover { border-color: var(--accent); }
.step > span {
  color: var(--accent);
  font: 500 9.5px/1.4 var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
}
.step h3 { margin: 16px 0 9px; font-size: 1.5rem; }
.step p { margin: 0; font-size: .91rem; line-height: 1.58; }
.boundary {
  margin: 48px 0 0;
  padding: 19px 21px;
  border-left: 3px solid var(--accent);
  color: var(--ink-2);
  background: var(--paper);
  font-size: .9rem;
}
.boundary strong { color: var(--ink); }
.boundary-note { display: block; margin-top: 8px; color: var(--ink-3); font-size: .82rem; }
.sharing-fit {
  display: grid;
  grid-template-columns: minmax(0, .72fr) minmax(0, 1.28fr);
  gap: clamp(38px, 7vw, 90px);
  margin-top: 62px;
  padding-top: 42px;
  border-top: 1px solid var(--line);
}
.sharing-fit .eyebrow { margin-bottom: 16px; }
.sharing-fit h3 { max-width: 17ch; font-size: clamp(1.8rem, 3vw, 2.35rem); }
.sharing-copy p { margin-bottom: 16px; font-size: .93rem; line-height: 1.68; }
.sharing-links { display: flex; flex-wrap: wrap; gap: 12px 24px; margin-top: 25px; }
.sharing-links a {
  padding-bottom: 4px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  font: 500 10px/1.4 var(--mono);
  letter-spacing: .09em;
  text-decoration: none;
  text-transform: uppercase;
}
.sharing-links a:hover { border-color: var(--accent); color: var(--accent); }

.share-heading { max-width: none; margin-bottom: 39px; }
.share-heading h2 {
  max-width: 1080px;
  color: var(--dark-text);
  font-size: clamp(2.35rem, 5vw, 3.75rem);
  text-wrap: pretty;
}
.share-heading > p:last-child { max-width: 900px; color: var(--dark-muted); }
.adoption-line {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 0;
  margin-bottom: 39px;
  color: var(--accent-soft);
  font: 500 10px/1.5 var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
}
.adoption-line span { padding: 0 20px; border-left: 1px solid var(--dark-line); }
.adoption-line span:first-child { padding-left: 0; border-left: 0; }

.terminal {
  max-width: 920px;
  overflow: hidden;
  border: 1px solid var(--dark-line);
  border-radius: 10px;
  background: var(--dark-2);
  box-shadow: 0 30px 70px rgba(8, 12, 24, .45);
}
.term-tabs { display: flex; border-bottom: 1px solid var(--dark-line); }
.term-tab {
  padding: 14px 20px;
  border: 0;
  border-right: 1px solid var(--dark-line);
  color: var(--dark-muted);
  background: transparent;
  font: 500 10px/1 var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
  cursor: pointer;
}
.term-tab:hover { color: var(--dark-text); }
.term-tab.is-active {
  color: white;
  background: rgba(235, 236, 242, .05);
  box-shadow: inset 0 -2px 0 var(--accent);
}
.term-pane {
  display: none;
  min-height: 322px;
  margin: 0;
  padding: 25px 27px;
  overflow-x: auto;
  color: var(--dark-text);
  font: 12.5px/1.9 var(--mono);
  letter-spacing: .01em;
  white-space: pre;
}
.term-pane.is-active { display: block; }
.comment, .muted { color: #7f879c; }
.prompt, .keyword { color: var(--accent-soft); }
.ok { color: #93c6af; }
.term-actions {
  display: flex;
  border-top: 1px solid var(--dark-line);
}
.term-actions button {
  padding: 15px;
  border: 0;
  color: var(--dark-muted);
  background: transparent;
  font: 500 10px/1 var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
  cursor: pointer;
}
.term-actions button:hover { color: white; background: rgba(255, 255, 255, .04); }
.platform-toggle {
  flex: 0 0 auto;
  border-right: 1px solid var(--dark-line) !important;
  color: var(--accent-soft) !important;
}
.copy-button { flex: 1; }
.term-foot {
  margin: 23px 0 0;
  color: var(--dark-muted);
  font: 10px/1.6 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
}

.access-grid {
  display: grid;
  grid-template-columns: minmax(0, .85fr) minmax(480px, 1.15fr);
  gap: clamp(56px, 8vw, 110px);
  align-items: start;
}
.access-copy a { border-bottom: 1px solid var(--line); color: var(--ink); text-decoration: none; }
.access-copy a:hover { border-color: var(--accent); color: var(--accent); }
.plain-list { margin: 34px 0 0; padding: 0; list-style: none; }
.plain-list li { padding: 12px 0 12px 22px; border-top: 1px solid var(--line); color: var(--ink); font-size: .92rem; }
.plain-list li::before {
  content: "✓";
  display: inline-block;
  width: 22px;
  margin-left: -22px;
  color: var(--accent);
  font-family: var(--mono);
}
.access-form, .access-result {
  padding: clamp(25px, 4vw, 41px);
  border: 1px solid var(--line);
  background: white;
}
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 20px; }
label {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font: 500 10px/1.4 var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
}
input:not([type]), input[type="email"] {
  width: 100%;
  min-height: 46px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 3px;
  color: var(--ink);
  background: var(--paper);
  font: 16px/1.2 var(--sans);
}
input:focus { border-color: var(--accent); outline: 2px solid color-mix(in srgb, var(--accent) 36%, transparent); }
.check {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 12px;
  align-items: start;
  margin: 26px 0;
  font: 15px/1.5 var(--sans);
  letter-spacing: 0;
  text-transform: none;
}
.check input { width: 17px; height: 17px; margin: 3px 0 0; accent-color: var(--accent); }
.form-note, .form-status { margin: 16px 0 0; color: var(--ink-3); font: 10px/1.6 var(--mono); }
.form-status { color: var(--accent); }
.access-result h3 { margin-bottom: 8px; font-size: 2rem; }
.token-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  margin: 24px 0;
  border: 1px solid var(--line);
  background: var(--paper);
}
.token-row code {
  overflow: hidden;
  padding: 13px;
  color: var(--ink);
  font: 12px/1.4 var(--mono);
  text-overflow: ellipsis;
  white-space: nowrap;
}
.token-row button {
  padding: 0 16px;
  border: 0;
  border-left: 1px solid var(--line);
  color: var(--accent);
  background: transparent;
  font: 500 10px/1 var(--mono);
  text-transform: uppercase;
  cursor: pointer;
}
.access-result pre {
  margin: 0;
  padding: 20px;
  overflow-x: auto;
  border-radius: 4px;
  color: var(--dark-text);
  background: var(--dark-2);
  font: 11px/1.75 var(--mono);
  white-space: pre-wrap;
}

.footer { padding: 50px 0; border-top: 1px solid var(--line-soft); }
.footer-inner { display: flex; gap: 24px; align-items: baseline; }
.footer p, .footer a { margin: 0; color: var(--ink-3); font: 10px/1.6 var(--mono); }
.footer p:first-child { color: var(--ink); letter-spacing: .1em; text-transform: uppercase; }
.footer p:nth-child(2) { margin-right: auto; }

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  z-index: 100;
  padding: 12px 18px;
  border-radius: 5px;
  color: white;
  background: var(--dark);
  font: 11px/1.4 var(--mono);
  opacity: 0;
  transform: translate(-50%, 10px);
  pointer-events: none;
  transition: opacity .18s, transform .18s;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 200;
  padding: 10px 14px;
  border-radius: 6px;
  color: white;
  background: var(--accent);
  font: 500 11px/1 var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
  transform: translateY(-160%);
}
.skip-link:focus { transform: none; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

@media (max-width: 980px) {
  .nav-links { display: none; }
  .scale-grid, .sharing-fit, .access-grid { grid-template-columns: 1fr; gap: 48px; }
  .steps { grid-template-columns: 1fr 1fr; }
  .scale-figure { max-width: 700px; }
  .sharing-fit h3 { max-width: 20ch; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .nav .button { display: none; }
  .hero { min-height: auto; padding-top: 128px; text-align: left; }
  .hero h1, .hero .lede { margin-left: 0; }
  .hero h1 { font-size: clamp(3.15rem, 15vw, 4.6rem); }
  .hero-actions { justify-content: flex-start; }
  .provenance { max-width: 39ch; }
  .steps, .field-row { grid-template-columns: 1fr; }
  .adoption-line { display: grid; gap: 9px; }
  .adoption-line span { padding: 0; border-left: 0; }
  .scaling-plot text.plot-callout-title { font-size: 11.5px; }
  .scaling-plot text.plot-callout-note { font-size: 10px; }
  .scaling-plot text.plot-frontier-label { font-size: 9.5px; }
  .scaling-plot text.plot-axis-label { font-size: 9.5px; }
  .term-tabs { overflow-x: auto; }
  .term-tab { flex: 1 1 0; min-width: max-content; padding: 13px 11px; font-size: 9px; }
  .term-pane { min-height: 0; padding: 19px 16px; font-size: 10.5px; }
  .token-row { grid-template-columns: 1fr; }
  .token-row button { min-height: 40px; border-top: 1px solid var(--line); border-left: 0; }
  .footer-inner { display: grid; gap: 10px; }
  .toast { width: calc(100% - 32px); text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}