:root {
  --ink:#17243c;
  --muted:#52627a;
  --blue:#234edb;
  --blue-dark:#10359b;
  --paper:#fff;
  --wash:#eaf0ff;
  --rule:#d6deeb;
  --space-1:4px;
  --space-2:8px;
  --space-3:16px;
  --space-4:24px;
  --space-5:32px;
  --space-6:48px;
  --space-7:80px;
  --radius:6px;
  --prose:62ch;
  font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:var(--ink);
  background:var(--paper);
  font-size:17px;
  color-scheme:light
}

* {
  box-sizing:border-box
}
body {
  margin:0
}
a {
  color:var(--blue);
  text-underline-offset:4px
}
a:hover {
  color:var(--blue-dark)
}
header {
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:var(--space-4);
  padding:var(--space-4) max(24px,calc((100vw - 1280px)/2));
  border-bottom:1px solid var(--rule)
}
header>a {
  font-size:30px;
  font-weight:800;
  letter-spacing:-1.5px;
  text-decoration:none;
  color:var(--ink);
  white-space:nowrap
}
header span {
  font-size:20px;
  font-weight:450;
  letter-spacing:-.7px;
  color:var(--ink);
  margin-left:4px
}
nav {
  display:flex;
  gap:var(--space-3);
  flex-wrap:wrap
}
nav a {
  font-size:14px;
  text-decoration:none;
  display:flex;
  align-items:center;
  min-height:44px;
  padding:0 4px
}
main {
  max-width:1376px;
  margin:auto;
  padding:0 48px
}
section {
  margin-top:var(--space-7);
  scroll-margin-top:24px
}
h1,h2,h3 {
  line-height:1.15;
  text-wrap:balance
}
h1 {
  font-size:clamp(44px,5.6vw,80px);
  font-weight:750;
  line-height:1.04;
  letter-spacing:-.055em;
  margin:0;
  max-width:11ch
}
h2 {
  font-size:clamp(30px,3.8vw,48px);
  font-weight:650;
  letter-spacing:-1.2px;
  margin:0 0 24px
}
h3 {
  font-size:21px;
  font-weight:600;
  letter-spacing:-.3px;
  margin:28px 0 12px
}
p,li,dd {
  line-height:1.65
}
p {
  max-width:var(--prose);
  margin:16px 0
}
p,li,dd,a {
  overflow-wrap:break-word
}
.eyebrow,.tag {
  font-size:13px;
  font-weight:650;
  letter-spacing:0;
  color:var(--blue);
  line-height:1.6
}
.eyebrow {
  margin:0 0 16px
}
.tag {
  text-transform:none
}
.muted,small,.reference-note,.identity {
  color:var(--muted)
}
small {
  font-size:13px;
  line-height:1.5
}
.reference-note,.identity {
  font-size:13px
}
.intro {
  display:grid;
  grid-template-columns:1fr 1.15fr;
  grid-template-areas:"title art" "body art" "links art" "identity art";
  column-gap:32px;
  align-items:start;
  padding:80px 0 64px
}
.intro-copy { display:contents }
.intro h1 { grid-area:title; align-self:end }
.intro .lede { grid-area:body; max-width:43ch; margin:24px 0 0 }
.intro-links { grid-area:links }
.intro .identity { grid-area:identity; margin:0 }
.assay-atlas { grid-area:art; margin:0; align-self:center; min-width:0 }
.assay-atlas svg { display:block; width:100%; height:auto }
.assay-atlas figcaption { font-size:12px; line-height:1.65; color:var(--muted); padding:24px 12px 0; text-align:center }
.assay-atlas figcaption span,.assay-atlas figcaption strong { display:block }
.assay-atlas figcaption strong { font-weight:600; color:var(--ink) }
.intro-copy,.study-record,.research-layout>* {
  min-width:0
}
.lede {
  font-size:18px;
  color:var(--muted)
}
.intro-links {
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:20px;
  margin:32px 0
}
.intro-links>a {
  min-height:44px;
  display:inline-flex;
  align-items:center;
  font-size:14px
}
.action,button {
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  padding:13px 18px;
  background:var(--blue);
  color:white;
  border:1px solid var(--blue);
  border-radius:var(--radius);
  font:inherit;
  font-weight:600;
  text-decoration:none;
  cursor:pointer
}
.action:hover,button:hover {
  background:var(--blue-dark);
  color:white;
  text-decoration:none
}
.study-record {
  padding:32px 0;
  border-top:1px solid var(--rule);
  border-bottom:1px solid var(--rule)
}
.study-record h2 { font-size:25px; margin-bottom:24px; letter-spacing:-.6px }
.study-record dl { display:grid; grid-template-columns:1.3fr .8fr 1fr 1.3fr; gap:24px; margin:0 }
.study-record dl>div { min-width:0 }
.study-record dt { font-size:12px; color:var(--muted); line-height:1.6; font-weight:450 }
.study-record dd { margin:6px 0 0; font-size:15px; font-weight:600 }
.study-record>a { font-size:14px; display:inline-flex; align-items:center; min-height:44px }
.study-record .reference-note { margin-bottom:0 }
.research-layout {
  display:grid;
  grid-template-columns:1.5fr 1fr;
  gap:48px
}
.research-status {
  border-left:2px solid var(--blue);
  padding:0 0 0 24px
}
.grid {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));
  gap:24px
}
.card {
  padding:24px 0;
  border-top:1px solid var(--rule);
  margin-bottom:16px;
  min-width:0
}
.card h3 {
  margin-top:12px
}
.card p {
  font-size:16px
}
.learning-grid .card {
  display:flex;
  flex-direction:column
}
.learning-grid a {
  margin-top:auto
}
.lesson-number {
  font-family:monospace;
  color:var(--blue);
  font-size:17px;
  margin-bottom:24px
}
.metric {
  font-size:34px;
  font-weight:650;
  color:var(--blue);
  font-variant-numeric:tabular-nums
}
.notice {
  padding:18px;
  background:var(--wash);
  border-left:3px solid var(--blue)
}
.evidence-numbers {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:32px;
  background:var(--wash);
  border-top:3px solid var(--blue);
  padding:32px;
  margin-top:32px
}
.evidence-numbers strong {
  display:block;
  font-size:clamp(40px,5vw,60px);
  font-weight:650;
  letter-spacing:-2px;
  font-variant-numeric:tabular-nums
}
.evidence-numbers span {
  display:block;
  font-size:16px;
  margin:8px 0
}
.evidence-limit {
  font-size:15px;
  border-left:3px solid var(--blue);
  padding-left:16px
}
.archive-group {
  border-top:1px solid var(--rule);
  margin:0
}
.archive-group:last-child {
  border-bottom:1px solid var(--rule)
}
summary {
  cursor:pointer;
  color:var(--blue);
  font-weight:600;
  min-height:44px;
  padding:12px 0;
  line-height:1.5
}
summary:hover {
  color:var(--blue-dark)
}
.archive-group>summary {
  padding:24px 0;
  font-size:21px
}
.archive-body {
  padding:0 24px 32px;
  border-left:1px solid var(--rule);
  margin:0 0 24px 4px
}
.archive-body>h3 {
  padding-top:24px;
  border-top:1px solid var(--rule)
}
details {
  margin-top:16px
}
.table {
  overflow-x:auto;
  max-width:100%;
  margin:24px 0
}
table {
  border-collapse:collapse;
  width:100%;
  font-size:14px;
  font-variant-numeric:tabular-nums
}
td,th {
  text-align:left;
  padding:12px;
  border-bottom:1px solid var(--rule);
  vertical-align:top;
  min-width:130px
}
th {
  color:var(--muted);
  font-weight:600
}
code {
  font-size:13px;
  overflow-wrap:anywhere
}
pre {
  white-space:pre-wrap;
  overflow-wrap:anywhere;
  background:var(--wash);
  padding:16px;
  font-size:13px
}
dl dt {
  font-weight:600
}
dd {
  margin:7px 0
}
.standards {
  padding:40px 0;
  border-top:1px solid var(--rule);
  border-bottom:1px solid var(--rule)
}
.form-grid {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px
}
form {
  max-width:850px
}
label {
  display:block;
  font-weight:600;
  font-size:14px;
  margin:16px 0
}
input,select,textarea {
  display:block;
  width:100%;
  min-height:44px;
  font:inherit;
  color:var(--ink);
  border:1px solid #95a5bf;
  border-radius:var(--radius);
  padding:12px;
  margin-top:8px;
  background:white
}
textarea {
  resize:vertical
}
fieldset {
  min-width:0;
  border:1px solid var(--rule);
  padding:16px 24px
}
legend {
  font-size:14px;
  padding:0 8px
}
.dedication {
  padding:48px 0;
  border-top:3px solid var(--blue)
}
.dedication blockquote {
  margin:24px 0;
  font-size:clamp(24px,3vw,36px);
  font-weight:400;
  letter-spacing:-.5px;
  line-height:1.55;
  max-width:860px
}
.memorial {
  color:var(--muted)
}
footer {
  margin-top:64px;
  padding:32px max(24px,calc((100vw - 1280px)/2));
  border-top:1px solid var(--rule);
  color:var(--muted);
  font-size:13px
}
:focus-visible {
  outline:3px solid var(--blue);
  outline-offset:4px
}
.skip-link {
  position:absolute;
  left:16px;
  top:8px;
  background:white;
  padding:12px 20px;
  z-index:10;
  transform:translateY(-160%)
}
.skip-link:focus {
  transform:translateY(0)
}
a,button,summary,input,select,textarea {
  touch-action:manipulation;
  -webkit-tap-highlight-color:#dce6ff
}
#contribute>.card>.grid {
  gap:32px
}
#contribute>.card>.grid h3 {
  font-size:23px
}

@media(max-width:1000px) {
  header { align-items:flex-start; flex-direction:column; gap:8px }
  .intro { column-gap:16px; padding-top:48px }
  .intro-links { gap:12px }
  .study-record dl { grid-template-columns:1fr 1fr }
}
@media(max-width:760px) {
  main { padding:0 20px }
  header { padding:16px 20px }
  nav { gap:0 12px }
  nav a { font-size:13px; padding:0 2px }
  .intro { grid-template-columns:1fr; grid-template-areas:"title" "art" "body" "links" "identity"; padding:32px 0; gap:0 }
  .intro h1 { font-size:clamp(38px,10.8vw,64px); max-width:14ch; letter-spacing:-.045em }
  .assay-atlas { width:min(100%,440px); justify-self:center; margin:16px 0 0 }
  .assay-atlas svg { max-height:280px }
  .assay-atlas figcaption { padding:8px 0 0; font-size:11px }
  .intro .lede { font-size:16px; margin:20px 0 0; max-width:44ch }
  .intro-links { gap:8px 18px; margin:20px 0 12px }
  .intro-links>a { font-size:13px }
  .intro .identity { font-size:12px }
  .study-record dl { gap:20px }
  .research-layout,.form-grid { grid-template-columns:1fr; gap:24px }
  section { margin-top:56px }
  .evidence-numbers { padding:24px 16px; gap:16px }
  .archive-body { padding:0 12px 20px }
  .archive-group>summary { font-size:19px }
  fieldset { padding:12px }
}
@media(max-width:360px) {
  .study-record dl { grid-template-columns:1fr }
  .intro h1 { font-size:36px }
}

@media(prefers-reduced-motion:reduce) {
  *,*::before,*::after {
  scroll-behavior:auto!important
}

}

/* The outer fieldset is a safety boundary, not an extra visual card. */
#contribution-fields { border: 0; padding: 0; margin: 0; }
#contribution-fields > legend { padding: 0; font-weight: 600; }
button:disabled { cursor: not-allowed; background: var(--muted); border-color: var(--muted); }