:root {
  color-scheme: light;
  --ink: #12201e;
  --muted: #5c6967;
  --paper: #ffffff;
  --soft: #f2f5f3;
  --line: #d8dfdc;
  --dark: #101a19;
  --teal: #18a999;
  --coral: #ef6a5b;
  --yellow: #f3c747;
  --green: #5c9f68;
  --blue: #4f76c7;
  --shell: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.58;
  letter-spacing: 0;
}

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

a {
  color: inherit;
}

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

button,
input,
textarea,
select {
  font: inherit;
  letter-spacing: 0;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 10px;
  left: 10px;
  padding: 8px 12px;
  background: white;
  color: var(--ink);
  transform: translateY(-150%);
}

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

.page-shell {
  width: min(calc(100% - 48px), var(--shell));
  margin-inline: auto;
}

.section-pad {
  padding-block: 58px;
}

.site-header {
  position: fixed;
  z-index: 100;
  top: 0;
  right: 0;
  left: 0;
  color: white;
  transition: background-color 180ms ease, color 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.96);
  color: var(--ink);
  box-shadow: 0 1px 0 rgba(18, 32, 30, 0.12);
  backdrop-filter: blur(10px);
}

.nav-shell {
  width: min(calc(100% - 48px), var(--shell));
  min-height: 72px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: inherit;
  font-size: 18px;
  font-weight: 750;
  line-height: 1;
  text-decoration: none;
}

.brand-mark {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border: 2px solid currentColor;
  border-radius: 50%;
  font-size: 16px;
  font-weight: 800;
}

.nav-links {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 26px;
}

.nav-links a,
.nav-github {
  color: inherit;
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
}

.nav-links a:hover,
.nav-github:hover,
.footer-links a:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.nav-github {
  padding: 8px 13px;
  border: 1px solid currentColor;
  border-radius: 4px;
}

.hero {
  position: relative;
  min-height: 76svh;
  overflow: hidden;
  background: var(--dark);
  color: white;
}

.hero-mosaic {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.hero-mosaic img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-scrim {
  position: absolute;
  inset: 0;
  background: rgba(9, 20, 19, 0.72);
}

.hero-content {
  position: relative;
  z-index: 2;
  min-height: 76svh;
  padding-top: 108px;
  padding-bottom: 36px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-kicker,
.section-label,
.task-index {
  margin: 0 0 10px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 800;
  line-height: 1.3;
  text-transform: uppercase;
  letter-spacing: 0;
}

.hero-kicker {
  color: #72dfd0;
}

.hero h1 {
  max-width: 900px;
  margin: 0;
  font-size: 76px;
  line-height: 0.98;
  letter-spacing: 0;
}

.hero-lead {
  max-width: 820px;
  margin: 18px 0 0;
  font-size: 28px;
  font-weight: 680;
  line-height: 1.2;
}

.hero-copy {
  max-width: 700px;
  margin: 18px 0 0;
  color: #dbe6e3;
  font-size: 17px;
  line-height: 1.65;
}

.hero-claims {
  max-width: 760px;
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(4, max-content);
  gap: 10px 22px;
  color: #9ce7dc;
  font-size: 13px;
  font-weight: 800;
  line-height: 1.3;
  text-transform: uppercase;
}

.hero-claims span {
  padding-left: 11px;
  border-left: 3px solid rgba(180, 92, 255, 0.9);
}

.hero-actions {
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  min-height: 46px;
  padding: 10px 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 5px;
  font-size: 15px;
  font-weight: 750;
  text-decoration: none;
}

.button-primary {
  background: #79e1d3;
  color: #0c2421;
}

.button-primary:hover {
  background: #a0eadf;
}

.button-secondary {
  border-color: rgba(255, 255, 255, 0.7);
  color: white;
}

.button-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
}

.hero-facts {
  margin: 24px 0 0;
  padding: 14px 0 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 150px));
  gap: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.34);
}

.hero-facts div {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.hero-facts dt {
  font-size: 25px;
  font-weight: 780;
}

.hero-facts dd {
  margin: 0;
  color: #cad7d4;
  font-size: 13px;
  line-height: 1.35;
}

.hero-fast-fact dt {
  color: #aeece3;
}

.hero-fast-fact a {
  text-underline-offset: 3px;
}

.hero-authors {
  margin-top: 16px;
}

.hero-author-names {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 20px;
  color: white;
  font-size: 17px;
  font-weight: 750;
}

.hero-author-names a {
  color: inherit;
  text-underline-offset: 3px;
}

.hero-author-affiliations {
  margin: 4px 0 0;
  color: #c8d5d2;
  font-size: 13px;
}

.positioning {
  border-bottom: 1px solid var(--line);
}

.fast-band {
  padding-block: 38px;
  background: #25143d;
  color: white;
}

.fast-grid {
  display: grid;
  grid-template-columns: minmax(320px, 0.8fr) minmax(360px, 1fr) auto;
  gap: 38px;
  align-items: center;
}

.fast-band .section-label {
  color: #c995ff;
}

.fast-band h2 {
  margin: 0;
  font-size: 30px;
  line-height: 1.15;
}

.fast-band h2 span {
  color: #80e1d3;
}

.fast-band p:not(.section-label) {
  margin: 0;
  color: #d8cee1;
  font-size: 15px;
}

.fast-band > .fast-grid > a {
  color: #80e1d3;
  font-size: 14px;
  font-weight: 780;
  white-space: nowrap;
  text-underline-offset: 4px;
}

.fast-task-rates {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid rgba(201, 149, 255, 0.34);
}

.fast-task-rates > div {
  min-width: 0;
  padding: 20px 22px 0 0;
  display: grid;
  gap: 3px;
}

.fast-task-rates > div + div {
  padding-left: 22px;
  border-left: 1px solid rgba(201, 149, 255, 0.22);
}

.fast-task-rates span {
  color: #d8cee1;
  font-size: 12px;
  font-weight: 760;
  text-transform: uppercase;
}

.fast-task-rates strong {
  color: #80e1d3;
  font-size: 29px;
  line-height: 1.1;
}

.fast-task-rates small {
  color: #b9acc4;
  font-size: 12px;
}

.positioning-grid,
.citation-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
  gap: 48px;
  align-items: start;
}

.section-intro h2,
.split-heading h2,
.protocol-heading h2,
.reproduce h2,
.citation h2 {
  margin: 0;
  max-width: 760px;
  font-size: 38px;
  line-height: 1.13;
  letter-spacing: 0;
}

.positioning-copy {
  color: #394744;
  font-size: 17px;
}

.positioning-copy p {
  margin: 0;
}

.positioning-copy p + p {
  margin-top: 12px;
}

.random-floor {
  background: var(--soft);
}

.split-heading,
.protocol-heading {
  margin-bottom: 24px;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.7fr);
  gap: 48px;
  align-items: end;
}

.split-heading > p,
.protocol-heading > p {
  margin: 0;
  color: var(--muted);
}

.bar-chart {
  max-width: 840px;
  padding: 12px 0 0;
}

.chart-legend {
  margin-bottom: 16px;
  display: flex;
  justify-content: flex-end;
  gap: 24px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
}

.chart-legend span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.legend-swatch {
  width: 16px;
  height: 10px;
  display: inline-block;
  border-radius: 2px;
}

.historical {
  background: #a5aeab;
}

.strict {
  background: var(--coral);
}

.chart-row {
  min-height: 56px;
  display: grid;
  grid-template-columns: 90px 1fr;
  align-items: center;
  border-top: 1px solid var(--line);
}

.chart-task {
  font-weight: 750;
}

.bar-pair {
  display: grid;
  gap: 5px;
}

.bar-line {
  min-height: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.bar {
  width: var(--value);
  min-width: 2px;
  height: 10px;
  display: block;
  border-radius: 2px;
}

.bar-line b {
  font-size: 13px;
  line-height: 1;
}

.chart-axis {
  margin-left: 90px;
  padding-top: 9px;
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--ink);
  color: var(--muted);
  font-size: 12px;
}

.overview {
  background: white;
  padding-block: 46px;
  border-bottom: 1px solid var(--line);
}

.overview .split-heading {
  margin-bottom: 20px;
}

.overview .title-line {
  display: block;
  white-space: nowrap;
}

.overview-video {
  width: min(100%, 900px);
  aspect-ratio: 16 / 9;
  margin-inline: auto;
  background: #0d1515;
  box-shadow: 0 14px 36px rgba(20, 39, 36, 0.13);
}

.protocol {
  background: #dff3ed;
  color: var(--ink);
  transition: background-color 220ms ease;
}

.protocol[data-mode="strict"] {
  background: #f8e4e0;
}

.section-label.light {
  color: #087f73;
}

.protocol-heading {
  align-items: end;
}

.protocol-heading h2 {
  max-width: 820px;
  font-size: 46px;
  line-height: 1.1;
}

.mode-switch {
  justify-self: end;
  padding: 4px;
  display: inline-grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid #8a9793;
  border-radius: 6px;
  background: white;
}

.mode-switch button {
  min-width: 126px;
  min-height: 44px;
  padding: 8px 16px;
  border: 0;
  border-radius: 3px;
  background: transparent;
  color: #53615e;
  cursor: pointer;
  font-size: 15px;
  font-weight: 750;
}

.mode-switch button[aria-selected="true"] {
  color: white;
}

#tab-moderate[aria-selected="true"] {
  background: #128a7d;
}

#tab-strict[aria-selected="true"] {
  background: #d65549;
}

.protocol[data-mode="strict"] .section-label.light,
.protocol[data-mode="strict"] .panel-number {
  color: #b83f35;
}

.protocol-panel {
  border-top: 1px solid #84928e;
  border-bottom: 1px solid #84928e;
}

.protocol-panel[hidden] {
  display: none;
}

.panel-summary {
  padding: 22px 0;
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 20px;
  border-bottom: 1px solid #c4ceca;
}

.panel-number {
  margin: 0;
  color: #087f73;
  font-size: 14px;
  font-weight: 800;
}

.panel-summary h3 {
  margin: 0;
  font-size: 30px;
  line-height: 1.15;
}

.panel-summary p:last-child {
  max-width: 760px;
  margin: 6px 0 0;
  color: #566460;
  font-size: 17px;
}

.criteria-row {
  min-height: 62px;
  display: grid;
  grid-template-columns: 160px 1fr;
  align-items: center;
  gap: 24px;
  border-bottom: 1px solid #c4ceca;
  color: #33423f;
  font-size: 17px;
}

.criteria-row:last-child {
  border-bottom: 0;
}

.criteria-head {
  min-height: 42px;
  color: #687773;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.criteria-row strong {
  color: var(--ink);
  font-size: 17px;
}

.tasks {
  background: #fbfcfb;
  padding-bottom: 28px;
}

.task-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.task-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: white;
}

.task-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-bottom: 1px solid var(--line);
}

.task-body {
  min-height: 280px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.task-body h3 {
  margin: 0;
  font-size: 20px;
  line-height: 1.25;
}

.task-fast {
  width: 100%;
  margin: 0 0 14px;
  padding: 9px 0;
  display: flex;
  align-items: baseline;
  gap: 9px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.task-fast strong {
  color: #6f35a0;
  font-size: 20px;
  line-height: 1;
}

.task-fast span {
  color: var(--muted);
  font-size: 11px;
  font-weight: 760;
  text-transform: uppercase;
}

.task-body > p:not(.task-index) {
  margin: 10px 0 14px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.task-body a,
.resource-links a {
  margin-top: auto;
  color: var(--ink);
  font-size: 13px;
  font-weight: 780;
  text-underline-offset: 4px;
}

.pusht-card .task-index {
  color: #138f84;
}

.cube-card .task-index {
  color: #d94c3f;
}

.reacher-card .task-index {
  color: #9a7411;
}

.tworoom-card .task-index {
  color: #4d8758;
}

.results {
  background: white;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}

.table-scroll {
  overflow-x: auto;
  border-top: 2px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}

th,
td {
  padding: 13px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

thead th {
  background: var(--soft);
  color: #4f5d5a;
  font-size: 13px;
  font-weight: 800;
}

tbody th {
  font-weight: 800;
}

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

.excess {
  color: #087c6f;
  font-weight: 800;
}

.table-note {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.reproduce {
  background: #dff3ef;
}

.reproduce-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 40px;
  align-items: center;
}

.reproduce h2 {
  font-size: 40px;
}

.reproduce p:not(.section-label) {
  max-width: 520px;
  color: #40524e;
}

.resource-links {
  margin-top: 30px;
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
}

.code-block {
  overflow: hidden;
  border: 1px solid #34413f;
  border-radius: 7px;
  background: #101817;
  color: #e2ebe8;
  box-shadow: 0 18px 45px rgba(21, 53, 48, 0.14);
}

.code-toolbar {
  min-height: 46px;
  padding: 8px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #34413f;
  color: #aab9b5;
  font-size: 12px;
  font-weight: 750;
}

.code-toolbar button {
  padding: 5px 10px;
  border: 1px solid #65716f;
  border-radius: 4px;
  background: transparent;
  color: white;
  cursor: pointer;
  font-size: 12px;
  font-weight: 750;
}

.code-toolbar button:hover {
  background: #25322f;
}

pre {
  margin: 0;
  padding: 20px;
  overflow-x: auto;
}

code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 13px;
  line-height: 1.75;
}

.citation {
  border-bottom: 1px solid var(--line);
}

.citation-grid > p {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.site-footer {
  padding-block: 34px;
  background: white;
}

.footer-grid {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 36px;
}

.footer-brand {
  color: var(--ink);
}

.footer-grid p {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.footer-links {
  display: flex;
  gap: 22px;
  font-size: 14px;
  font-weight: 700;
}

@media (max-width: 1100px) {
  .task-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .fast-task-rates {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .fast-task-rates > div:nth-child(3) {
    padding-left: 0;
    border-left: 0;
  }

  .task-body {
    min-height: 220px;
  }
}

@media (max-width: 900px) {
  .section-pad {
    padding-block: 48px;
  }

  .nav-shell {
    min-height: 64px;
  }

  .nav-links {
    display: none;
  }

  .nav-github {
    margin-left: auto;
  }

  .hero,
  .hero-content {
    min-height: 78svh;
  }

  .hero-mosaic {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: repeat(2, minmax(0, 1fr));
  }

  .hero h1 {
    font-size: 60px;
  }

  .hero-lead {
    font-size: 24px;
  }

  .hero-facts {
    grid-template-columns: repeat(2, minmax(0, 160px));
  }

  .hero-claims {
    grid-template-columns: repeat(2, max-content);
  }

  .positioning-grid,
  .citation-grid,
  .reproduce-grid,
  .fast-grid,
  .split-heading,
  .protocol-heading {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .mode-switch {
    justify-self: start;
  }

  .task-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .task-body {
    min-height: 220px;
  }
}

@media (max-width: 600px) {
  .page-shell,
  .nav-shell {
    width: min(calc(100% - 32px), var(--shell));
  }

  .section-pad {
    padding-block: 40px;
  }

  .brand {
    font-size: 16px;
  }

  .brand-mark {
    width: 28px;
    height: 28px;
    font-size: 14px;
  }

  .nav-github {
    padding: 6px 10px;
    font-size: 13px;
  }

  .hero,
  .hero-content {
    min-height: 76svh;
  }

  .hero-content {
    padding-top: 88px;
    padding-bottom: 28px;
  }

  .hero h1 {
    font-size: 44px;
  }

  .hero-lead {
    font-size: 21px;
  }

  .hero-copy {
    font-size: 16px;
  }

  .hero-claims {
    grid-template-columns: 1fr 1fr;
    gap: 9px 12px;
    font-size: 11px;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }

  .hero-facts {
    margin-top: 20px;
    gap: 14px;
  }

  .hero-facts dt {
    font-size: 22px;
  }

  .fast-grid {
    gap: 18px;
  }

  .fast-task-rates {
    grid-template-columns: 1fr;
  }

  .fast-task-rates > div,
  .fast-task-rates > div + div,
  .fast-task-rates > div:nth-child(3) {
    padding: 14px 0;
    border-left: 0;
    border-bottom: 1px solid rgba(201, 149, 255, 0.16);
  }

  .fast-band h2 {
    font-size: 27px;
  }

  .section-intro h2,
  .split-heading h2,
  .protocol-heading h2,
  .reproduce h2,
  .citation h2 {
    font-size: 30px;
  }

  .overview h2 {
    font-size: 24px;
  }

  .protocol-heading h2 {
    font-size: 34px;
  }

  .positioning-copy,
  .citation-grid > p {
    font-size: 16px;
  }

  .chart-legend {
    justify-content: flex-start;
  }

  .chart-row {
    grid-template-columns: 80px 1fr;
  }

  .chart-axis {
    margin-left: 80px;
  }

  .mode-switch {
    width: 100%;
  }

  .mode-switch button {
    min-width: 0;
    min-height: 44px;
    font-size: 15px;
  }

  .panel-summary {
    grid-template-columns: 36px 1fr;
  }

  .panel-summary h3 {
    font-size: 28px;
  }

  .panel-summary p:last-child {
    font-size: 16px;
  }

  .criteria-row {
    padding-block: 12px;
    grid-template-columns: 1fr;
    gap: 4px;
    font-size: 16px;
  }

  .criteria-row strong {
    font-size: 17px;
  }

  .criteria-head {
    display: none;
  }

  .task-body {
    min-height: 0;
    padding: 18px;
  }

  .task-body h3 {
    font-size: 21px;
  }

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

  .tasks {
    padding-bottom: 20px;
  }

  .results {
    padding-top: 24px;
  }

  .reproduce-grid {
    gap: 28px;
  }

  .resource-links {
    display: grid;
    gap: 10px;
  }

  .hero-authors {
    margin-top: 12px;
  }

  .hero-author-names {
    gap: 3px 12px;
    font-size: 15px;
  }

  .hero-author-affiliations {
    font-size: 11px;
  }

  .code-block {
    margin-inline: -6px;
  }

  pre {
    padding: 16px;
  }

  code {
    font-size: 11px;
  }

  .footer-grid {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-links {
    flex-wrap: wrap;
  }
}

@media (max-width: 360px) {
  .overview h2 {
    font-size: 20px;
  }

  .hero-content {
    padding-top: 76px;
    padding-bottom: 20px;
  }

  .hero h1 {
    font-size: 40px;
  }

  .hero-copy {
    font-size: 14px;
  }

  .hero-actions {
    margin-top: 20px;
  }

  .hero-facts {
    display: none;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}