:root {
  --paper: #fbfaf5;
  --paper-strong: #ffffff;
  --mint-50: #f1f8f3;
  --mint-100: #e3f1e8;
  --mint-200: #c7e1d1;
  --green-500: #168463;
  --green-600: #0f7053;
  --green-700: #0b5d45;
  --green-800: #084835;
  --green-900: #062f24;
  --ink: #18231f;
  --muted: #5c6964;
  --line: #cbd8d0;
  --warm: #f3efe4;
  --amber: #c86b23;
  --purple: #6c50a6;
  --blue: #2968a8;
  --radius: 12px;
  --shadow: 0 18px 48px rgba(6, 47, 36, 0.08);
  --shell: min(1440px, calc(100% - 48px));
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
}

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

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  color: white;
  background: var(--green-900);
  transform: translateY(-160%);
  transition: transform 160ms ease;
}

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

.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  background: rgba(251, 250, 245, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.header-inner {
  width: var(--shell);
  min-height: 78px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--green-800);
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-decoration: none;
  white-space: nowrap;
}

.brand img {
  width: 44px;
  height: 51px;
  object-fit: contain;
}

.site-nav {
  display: flex;
  align-items: stretch;
  align-self: stretch;
  gap: clamp(18px, 2.4vw, 38px);
}

.site-nav a {
  position: relative;
  display: grid;
  place-items: center;
  color: #39453f;
  font-size: 0.9rem;
  font-weight: 650;
  text-decoration: none;
}

.site-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 3px;
  background: var(--green-600);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--green-700);
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
}

.hero {
  position: relative;
  padding: clamp(72px, 8vw, 126px) 0 48px;
  overflow: hidden;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  border: 1px solid var(--mint-200);
  border-radius: 50%;
}

.hero::before {
  width: 440px;
  height: 440px;
  top: -280px;
  right: -120px;
}

.hero::after {
  width: 240px;
  height: 240px;
  top: -130px;
  right: -20px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(340px, 0.78fr) minmax(560px, 1.42fr);
  align-items: center;
  gap: clamp(48px, 6vw, 96px);
}

.venue-row {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
}

.venue-badge {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 6px 15px;
  color: #fff;
  background: var(--green-700);
  border-radius: 7px;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.release-note {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0 0 22px;
  color: var(--green-900);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(4.25rem, 6.2vw, 7.4rem);
  font-weight: 700;
  line-height: 0.88;
  letter-spacing: -0.075em;
}

.hero h1 span {
  color: var(--green-600);
}

.hero-subtitle {
  max-width: 700px;
  margin: 0 0 24px;
  color: #25332d;
  font-size: clamp(1.2rem, 1.55vw, 1.55rem);
  font-weight: 660;
  line-height: 1.45;
  letter-spacing: -0.025em;
}

.hero-summary {
  max-width: 640px;
  margin: 0;
  color: var(--muted);
  font-size: 1.02rem;
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 11px 18px;
  border: 1px solid var(--green-700);
  border-radius: 7px;
  font-size: 0.9rem;
  font-weight: 750;
  text-decoration: none;
  transition: background 160ms ease, color 160ms ease, transform 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  color: #fff;
  background: var(--green-700);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--green-800);
}

.button-secondary {
  color: var(--green-800);
  background: transparent;
}

.button-secondary:hover,
.button-secondary:focus-visible {
  background: var(--mint-100);
}

.paper-figure {
  margin: 0;
  background: var(--paper-strong);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.paper-figure img {
  width: 100%;
}

.paper-figure a {
  display: block;
}

.figure-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 50px;
  padding: 12px 18px;
  color: var(--green-800);
  border-bottom: 1px solid var(--line);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.figure-kicker span {
  display: inline-grid;
  min-width: 28px;
  height: 28px;
  padding: 0 5px;
  place-items: center;
  color: #fff;
  background: var(--green-700);
  border-radius: 50%;
  font-size: 0.7rem;
}

.paper-figure figcaption {
  padding: 14px 18px 16px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 0.82rem;
}

.hero-figure {
  padding: 8px;
  transform: rotate(0.35deg);
}

.hero-figure .figure-kicker,
.hero-figure figcaption {
  margin-inline: -8px;
}

.hero-figure .figure-kicker {
  margin-top: -8px;
}

.hero-figure figcaption {
  margin-bottom: -8px;
}

.stat-rail {
  margin-top: clamp(48px, 6vw, 88px);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.stat-rail div {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 28px clamp(18px, 2vw, 34px);
  border-right: 1px solid var(--line);
}

.stat-rail div:first-child {
  padding-left: 0;
}

.stat-rail div:last-child {
  border-right: 0;
}

.stat-rail strong {
  color: var(--green-700);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2rem, 3.4vw, 3.4rem);
  line-height: 1;
}

.stat-rail span {
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 750;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.section {
  position: relative;
  padding: clamp(88px, 10vw, 156px) 0;
}

.section-tint {
  background: var(--mint-50);
  border-top: 1px solid var(--mint-200);
  border-bottom: 1px solid var(--mint-200);
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--green-600);
  font-size: 0.76rem;
  font-weight: 850;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.split-intro {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: clamp(54px, 8vw, 130px);
}

.split-intro h2,
.section-heading h2,
.resource-heading h2 {
  margin: 0;
  color: var(--green-900);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.9rem, 5vw, 5.8rem);
  font-weight: 700;
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.split-intro h2 {
  max-width: 750px;
}

.lead-copy {
  max-width: 720px;
  padding-top: 28px;
  color: #34413b;
  font-size: clamp(1.08rem, 1.4vw, 1.3rem);
  line-height: 1.75;
}

.lead-copy p:first-child {
  margin-top: 0;
}

.lead-copy p:last-child {
  margin-bottom: 0;
}

.research-question {
  margin-top: clamp(68px, 8vw, 112px);
  display: grid;
  grid-template-columns: 96px 1fr;
  align-items: center;
  background: var(--green-800);
  border: 1px solid var(--green-900);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.question-mark {
  display: grid;
  min-height: 100%;
  place-items: center;
  color: var(--green-900);
  background: #bfe2ce;
  border-right: 1px solid var(--green-900);
  border-radius: var(--radius) 0 0 var(--radius);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 4rem;
  font-weight: 700;
}

.research-question p {
  max-width: 1120px;
  margin: 0;
  padding: 28px 36px;
  color: white;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.6rem, 2.8vw, 3rem);
  line-height: 1.2;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  column-gap: clamp(50px, 8vw, 140px);
  align-items: end;
  margin-bottom: 60px;
}

.section-heading .eyebrow {
  grid-column: 1 / -1;
}

.section-heading h2 span,
.benchmark-heading h2 span {
  color: var(--green-600);
}

.section-heading > p:last-child {
  max-width: 580px;
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 1.05rem;
}

.pipeline {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  align-items: stretch;
}

.pipeline article {
  position: relative;
  min-height: 190px;
  padding: 58px 22px 24px;
  background: var(--paper-strong);
  border: 1px solid var(--line);
  border-radius: 10px;
}

.pipeline h3 {
  margin: 0 0 8px;
  color: var(--green-900);
  font-size: 1.02rem;
}

.pipeline p {
  margin: 0;
  color: var(--muted);
  font-size: 0.87rem;
}

.step-number {
  position: absolute;
  top: 18px;
  left: 20px;
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  color: #fff;
  background: var(--green-700);
  border-radius: 50%;
  font-size: 0.76rem;
  font-weight: 850;
}

.step-arrow {
  display: grid;
  width: clamp(28px, 3vw, 54px);
  place-items: center;
  color: var(--green-600);
  font-size: 1.8rem;
}

.quality-panel {
  margin-top: 28px;
  padding: 24px;
  background: var(--paper-strong);
  border: 1px solid var(--green-500);
  border-radius: var(--radius);
}

.panel-label {
  margin-bottom: 18px;
  color: var(--green-800);
  font-size: 0.76rem;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.quality-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
}

.quality-group {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 70px;
  padding: 10px 16px;
  border-right: 1px solid var(--line);
}

.quality-group:last-child {
  border-right: 0;
}

.quality-code {
  display: grid;
  min-width: 36px;
  height: 29px;
  padding-inline: 7px;
  place-items: center;
  color: #fff;
  border-radius: 5px;
  font-size: 0.7rem;
  font-weight: 850;
}

.quality-hq .quality-code {
  background: var(--green-700);
}

.quality-dq .quality-code {
  background: #66706b;
}

.quality-rq .quality-code {
  background: var(--purple);
}

.quality-group strong,
.quality-group small {
  display: block;
}

.quality-group strong {
  font-size: 0.85rem;
}

.quality-group small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.7rem;
}

.scope-note {
  margin: 16px 0 0;
  padding-top: 14px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 0.78rem;
}

.sample-strip {
  margin-top: 28px;
  overflow: hidden;
}

.annotation-grid {
  margin-top: 28px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 230px;
  gap: 28px;
  align-items: stretch;
}

.annotation-grid .paper-figure {
  overflow: hidden;
}

.annotation-stats {
  display: grid;
  padding: 8px 22px;
  background: var(--mint-100);
  border: 1px solid var(--mint-200);
  border-radius: var(--radius);
}

.annotation-stats div {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 14px 0;
  border-bottom: 1px solid #bed6c7;
}

.annotation-stats div:last-child {
  border-bottom: 0;
}

.annotation-stats strong {
  color: var(--green-700);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 2rem;
  line-height: 1;
}

.annotation-stats span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.76rem;
}

.split-details {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.split-card {
  padding: 30px 34px;
  border-right: 1px solid var(--line);
}

.split-card:last-child {
  border-right: 0;
}

.split-card > span {
  color: var(--green-600);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.split-card strong {
  display: block;
  margin-top: 6px;
  color: var(--green-900);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.8rem;
}

.split-card p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.distributions {
  margin-top: 28px;
  overflow: hidden;
}

.anchor-target {
  position: absolute;
  top: -90px;
}

.benchmark-heading {
  margin-bottom: 48px;
}

.benchmark-counts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-bottom: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.benchmark-counts div {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 24px 28px;
  background: var(--mint-50);
  border-right: 1px solid var(--line);
}

.benchmark-counts div:last-child {
  border-right: 0;
}

.benchmark-counts strong {
  color: var(--green-700);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 2.6rem;
  line-height: 1;
}

.benchmark-counts span {
  color: var(--muted);
  font-size: 0.8rem;
}

.result-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(340px, 0.55fr);
  gap: 28px;
  align-items: stretch;
}

.radar-card {
  overflow: hidden;
}

.finding-list {
  display: grid;
  gap: 12px;
}

.finding-list article {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 14px;
  align-items: start;
  padding: 22px;
  background: var(--mint-50);
  border: 1px solid var(--line);
  border-left: 4px solid var(--green-600);
  border-radius: 9px;
}

.finding-index {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: #fff;
  background: var(--green-700);
  border-radius: 50%;
  font-size: 0.7rem;
  font-weight: 850;
}

.finding-list h3 {
  margin: 1px 0 6px;
  color: var(--green-900);
  font-size: 1.02rem;
  line-height: 1.3;
}

.finding-list p {
  margin: 0;
  color: var(--muted);
  font-size: 0.83rem;
}

.finding-list strong {
  color: var(--green-700);
}

.results-tables {
  margin-top: 28px;
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 28px;
}

.table-card {
  background: var(--paper-strong);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.table-title {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 24px;
  border-bottom: 1px solid var(--line);
}

.table-title span {
  color: var(--green-600);
  font-size: 0.7rem;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.table-title h3 {
  margin: 4px 0 0;
  color: var(--green-900);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.5rem;
}

.table-title small {
  color: var(--muted);
  text-align: right;
}

.table-scroll {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}

th,
td {
  padding: 13px 24px;
  border-bottom: 1px solid #e4e9e6;
  text-align: left;
  white-space: nowrap;
}

th {
  color: var(--muted);
  background: #f7f8f5;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

td {
  font-size: 0.83rem;
}

tbody tr:last-child td {
  border-bottom: 0;
}

td strong {
  color: var(--green-700);
}

.failure-card {
  margin-top: 28px;
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  overflow: hidden;
}

.failure-copy {
  padding: 30px;
  background: var(--mint-50);
  border-right: 1px solid var(--line);
}

.failure-copy h3,
.qualitative-heading h3 {
  margin: 0;
  color: var(--green-900);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 2rem;
  line-height: 1.1;
}

.failure-copy > p:last-child {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.failure-card > a {
  display: grid;
  place-items: center;
  padding: 20px;
}

.qualitative-heading {
  margin: 80px 0 28px;
}

.qualitative-heading h3 {
  font-size: clamp(2rem, 3.5vw, 3.6rem);
}

.qualitative-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.qualitative-grid .paper-figure {
  overflow: hidden;
}

.section-dark {
  color: #e7f1ec;
  background: var(--green-900);
  border-top: 1px solid #174c3c;
}

.section-dark .eyebrow {
  color: #82c9a7;
}

.resource-heading {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: end;
  column-gap: 70px;
  margin-bottom: 54px;
}

.resource-heading .eyebrow {
  grid-column: 1 / -1;
}

.resource-heading h2 {
  color: white;
}

.resource-heading > p:last-child {
  max-width: 520px;
  margin: 0 0 8px;
  color: #adc6ba;
  font-size: 1.05rem;
}

.resource-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid #356353;
  border-bottom: 1px solid #356353;
}

.resource-grid a {
  display: flex;
  min-height: 210px;
  padding: 28px;
  flex-direction: column;
  justify-content: space-between;
  border-right: 1px solid #356353;
  text-decoration: none;
  transition: background 160ms ease;
}

.resource-grid a:last-child {
  border-right: 0;
}

.resource-grid a:hover,
.resource-grid a:focus-visible {
  background: #0a3a2c;
}

.resource-grid span,
.resource-grid small {
  color: #8fb4a5;
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.resource-grid strong {
  max-width: 250px;
  color: white;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.45rem;
  line-height: 1.2;
}

.citation-block {
  margin-top: 70px;
  display: grid;
  grid-template-columns: 0.65fr 1.35fr;
  gap: 50px;
  align-items: start;
}

.citation-block h3 {
  max-width: 420px;
  margin: 0;
  color: white;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.7rem;
  line-height: 1.3;
}

pre {
  margin: 0;
  padding: 24px;
  color: #d8e9e1;
  background: #041f18;
  border: 1px solid #356353;
  border-radius: 9px;
  overflow-x: auto;
  font: 0.76rem/1.7 "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

.authors-block {
  margin-top: 70px;
  padding-top: 38px;
  border-top: 1px solid #356353;
}

.author-list {
  max-width: 1160px;
  margin: 0;
  color: white;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.35rem, 2.3vw, 2.2rem);
  line-height: 1.55;
}

.author-list a {
  text-decoration-color: #539877;
  text-underline-offset: 4px;
}

.author-list sup,
.author-notes sup {
  color: #82c9a7;
  font-family: Inter, ui-sans-serif, sans-serif;
  font-size: 0.55em;
}

.affiliations {
  margin: 22px 0 0;
  color: #b8cfc4;
  font-size: 0.9rem;
}

.author-notes {
  margin: 10px 0 0;
  color: #8fb4a5;
  font-size: 0.74rem;
}

.site-footer {
  color: #3d4b45;
  background: #e6eee8;
  border-top: 1px solid var(--line);
}

.footer-inner {
  min-height: 150px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 40px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.footer-brand img {
  width: 52px;
}

.footer-brand strong,
.footer-brand span {
  display: block;
}

.footer-brand strong {
  color: var(--green-800);
}

.footer-brand span {
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 700;
}

.footer-inner p {
  margin: 0;
  font-size: 0.78rem;
  text-align: center;
}

.footer-inner > a {
  color: var(--green-800);
  font-size: 0.78rem;
  font-weight: 750;
}

:focus-visible {
  outline: 3px solid #e2a756;
  outline-offset: 3px;
}

@media (max-width: 1120px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: 820px;
  }

  .hero h1 {
    font-size: clamp(4.6rem, 11vw, 7.4rem);
  }

  .section-heading,
  .resource-heading {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .pipeline {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .step-arrow {
    display: none;
  }

  .quality-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .quality-group:nth-child(3) {
    border-right: 0;
  }

  .quality-group:nth-child(-n+3) {
    border-bottom: 1px solid var(--line);
  }

  .result-layout {
    grid-template-columns: 1fr;
  }

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

  .resource-grid {
    grid-template-columns: 1fr 1fr;
  }

  .resource-grid a:nth-child(2) {
    border-right: 0;
  }

  .resource-grid a:nth-child(-n+2) {
    border-bottom: 1px solid #356353;
  }
}

@media (max-width: 820px) {
  :root {
    --shell: min(100% - 30px, 720px);
  }

  html {
    scroll-padding-top: 68px;
  }

  .site-header {
    position: static;
  }

  .header-inner {
    min-height: 66px;
  }

  .brand img {
    width: 37px;
    height: 43px;
  }

  .brand span {
    font-size: 1rem;
  }

  .site-nav {
    max-width: 58vw;
    gap: 20px;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .site-nav::-webkit-scrollbar {
    display: none;
  }

  .site-nav a {
    flex: 0 0 auto;
    font-size: 0.78rem;
  }

  .hero {
    padding-top: 62px;
  }

  .hero h1 {
    font-size: clamp(3.9rem, 17vw, 6.2rem);
    letter-spacing: -0.065em;
  }

  .hero-subtitle {
    font-size: 1.15rem;
  }

  .stat-rail {
    grid-template-columns: 1fr 1fr;
  }

  .stat-rail div {
    padding: 22px 16px;
    border-bottom: 1px solid var(--line);
  }

  .stat-rail div:first-child {
    padding-left: 16px;
  }

  .stat-rail div:nth-child(2) {
    border-right: 0;
  }

  .stat-rail div:nth-child(n+3) {
    border-bottom: 0;
  }

  .stat-rail strong {
    font-size: 2.3rem;
  }

  .split-intro {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .lead-copy {
    padding-top: 0;
  }

  .research-question {
    grid-template-columns: 64px 1fr;
  }

  .question-mark {
    font-size: 2.5rem;
  }

  .research-question p {
    padding: 22px;
  }

  .pipeline {
    grid-template-columns: 1fr;
  }

  .pipeline article {
    min-height: 150px;
  }

  .quality-grid {
    grid-template-columns: 1fr 1fr;
  }

  .quality-group,
  .quality-group:nth-child(3) {
    border-right: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }

  .quality-group:nth-child(even) {
    border-right: 0;
  }

  .quality-group:nth-last-child(-n+2) {
    border-bottom: 0;
  }

  .annotation-grid {
    grid-template-columns: 1fr;
  }

  .annotation-stats {
    grid-template-columns: 1fr 1fr;
  }

  .annotation-stats div:nth-child(odd) {
    padding-right: 18px;
    border-right: 1px solid #bed6c7;
  }

  .annotation-stats div:nth-child(n+3) {
    border-bottom: 0;
  }

  .annotation-stats div:nth-child(even) {
    padding-left: 18px;
  }

  .split-details,
  .benchmark-counts,
  .results-tables,
  .qualitative-grid {
    grid-template-columns: 1fr;
  }

  .split-card,
  .benchmark-counts div {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .split-card:last-child,
  .benchmark-counts div:last-child {
    border-bottom: 0;
  }

  .failure-card {
    grid-template-columns: 1fr;
  }

  .failure-copy {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .citation-block {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 34px 0;
  }

  .footer-inner p {
    text-align: left;
  }
}

@media (max-width: 560px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
    padding: 10px 0 0;
  }

  .site-nav {
    width: 100%;
    max-width: 100%;
    min-height: 42px;
    justify-content: space-between;
    gap: 14px;
  }

  .site-nav a {
    font-size: 0.7rem;
  }

  .hero {
    padding-top: 48px;
  }

  .venue-row {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .hero h1 {
    font-size: clamp(3.3rem, 17vw, 5rem);
  }

  .hero-summary {
    font-size: 0.94rem;
  }

  .action-row {
    display: grid;
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }

  .stat-rail strong {
    font-size: 1.9rem;
  }

  .stat-rail span {
    font-size: 0.66rem;
  }

  .section {
    padding: 82px 0;
  }

  .split-intro h2,
  .section-heading h2,
  .resource-heading h2 {
    font-size: clamp(2.45rem, 13vw, 4rem);
  }

  .research-question {
    grid-template-columns: 1fr;
  }

  .question-mark {
    min-height: 56px;
    border-right: 0;
    border-bottom: 1px solid var(--green-900);
    border-radius: var(--radius) var(--radius) 0 0;
  }

  .research-question p {
    font-size: 1.5rem;
  }

  .quality-panel {
    padding: 16px;
  }

  .quality-grid {
    grid-template-columns: 1fr;
  }

  .quality-group,
  .quality-group:nth-child(3),
  .quality-group:nth-child(even),
  .quality-group:nth-last-child(-n+2) {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .quality-group:last-child {
    border-bottom: 0;
  }

  .finding-list,
  .resource-grid {
    grid-template-columns: 1fr;
  }

  .resource-grid a,
  .resource-grid a:nth-child(2),
  .resource-grid a:nth-child(-n+2) {
    min-height: 180px;
    border-right: 0;
    border-bottom: 1px solid #356353;
  }

  .resource-grid a:last-child {
    border-bottom: 0;
  }

  .table-title {
    align-items: flex-start;
    flex-direction: column;
  }

  .table-title small {
    text-align: left;
  }

  .author-list {
    font-size: 1.3rem;
  }
}

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

  *,
  *::before,
  *::after {
    transition-duration: 0.001ms !important;
  }
}

@media print {
  .site-header,
  .action-row,
  .site-footer {
    display: none;
  }

  body {
    background: white;
  }

  .section,
  .hero {
    padding: 34px 0;
  }
}