:root {
  color-scheme: light;
  --text: #17212d;
  --muted: #65717d;
  --line: #e1e6eb;
  --accent: #b45124;
  --soft: #fff6ee;
  --paper: #fff;
  --head: #f5f7f9;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font:
    14px/1.65 ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}
button,
input,
select {
  font: inherit;
}
button,
summary,
select {
  cursor: pointer;
}
a {
  color: var(--accent);
  text-underline-offset: 3px;
}
a:hover {
  text-decoration: underline;
}
button:focus-visible,
a:focus-visible,
summary:focus-visible,
input:focus-visible,
select:focus-visible,
.table-shell:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
main {
  max-width: 1240px;
  margin: auto;
  padding: 54px 32px 24px;
}
.introduction {
  max-width: 980px;
  margin: 0 auto 48px;
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 11px;
  font-weight: 650;
  color: var(--accent);
  margin: 0 0 8px;
}
h1 {
  font-size: 44px;
  line-height: 1.15;
  letter-spacing: -0.04em;
  margin: 0 0 10px;
}
.subtitle {
  font-size: 21px;
  line-height: 1.45;
  color: #475567;
  margin: 0 0 28px;
}
.introduction h2 {
  font-size: 17px;
  margin: 0 0 10px;
}
.introduction > p:not(.eyebrow):not(.subtitle) {
  color: #4c5865;
  font-size: 15px;
  line-height: 1.8;
  margin: 0 0 12px;
}
strong {
  color: var(--text);
  font-weight: 600;
}
.resource-links {
  display: flex;
  gap: 12px;
  margin-top: 22px;
}
.resource-links a {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px 14px;
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}
.resource-links a:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.resource-links span {
  margin-left: 10px;
  color: var(--muted);
}
.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}
.section-heading h2 {
  font-size: 27px;
  line-height: 1.25;
  letter-spacing: -0.025em;
  margin: 0;
}
.metadata {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 12px;
}
.subtabs {
  display: flex;
  border-bottom: 1px solid var(--line);
  gap: 24px;
  overflow-x: auto;
}
.subtab {
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  padding: 12px 0;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  color: var(--muted);
}
.subtab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}
.toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px 0;
  position: relative;
  z-index: 8;
}
.metric-control {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 12px;
}
select,
input {
  color: var(--text);
  background: white;
  border: 1px solid #cfd7df;
  border-radius: 6px;
  min-height: 37px;
  padding: 6px 10px;
}
select {
  min-width: 120px;
}
.search {
  display: flex;
  align-items: center;
  border: 1px solid #cfd7df;
  border-radius: 6px;
  padding: 0 10px;
  gap: 8px;
  margin-left: auto;
  width: 260px;
}
.search span {
  font-size: 22px;
  color: var(--muted);
}
.search input {
  border: 0;
  min-width: 0;
  width: 100%;
  padding-left: 0;
  outline-offset: 0;
}
.menu {
  position: relative;
  font-size: 12px;
}
.menu summary {
  list-style: none;
  padding: 8px 13px;
  border: 1px solid #cfd7df;
  border-radius: 6px;
  white-space: nowrap;
}
.menu summary::-webkit-details-marker {
  display: none;
}
.menu[open] summary {
  background: var(--head);
}
.menu-content {
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  width: 230px;
  padding: 12px;
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 8px 30px #17212d14;
  display: grid;
  gap: 8px;
}
.menu-content button {
  border: 0;
  border-radius: 4px;
  background: var(--head);
  padding: 8px;
  text-align: left;
  color: var(--text);
}
.menu-content button:hover {
  background: var(--soft);
}
.menu-content small {
  color: var(--muted);
}
.filter-fields label {
  display: grid;
  gap: 4px;
}
.filter-fields input {
  width: 100%;
}
.table-shell {
  height: 560px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  position: relative;
  scrollbar-gutter: stable;
  overscroll-behavior: contain;
}
table {
  width: 100%;
  table-layout: fixed;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 13px;
}
thead {
  position: sticky;
  top: 0;
  z-index: 5;
}
th {
  background: var(--head);
  color: #526071;
  font-size: 12px;
  line-height: 1.45;
  font-weight: 600;
  text-align: center;
  border-bottom: 1px solid var(--line);
  padding: 12px 10px;
  height: 68px;
  overflow-wrap: normal;
}
th button {
  font: inherit;
  color: inherit;
  border: 0;
  background: transparent;
  padding: 0;
  width: 100%;
  text-align: inherit;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  min-height: 28px;
}
th button:hover {
  color: var(--accent);
}
.sort-arrow {
  font-size: 12px;
  flex-shrink: 0;
  color: #94a0ac;
}
th[aria-sort] .sort-arrow {
  color: var(--accent);
}
td {
  height: 48px;
  padding: 10px;
  border-bottom: 1px solid #edf0f3;
  text-align: center;
  white-space: nowrap;
  background: white;
  font-variant-numeric: tabular-nums;
}
th.identity,
td.identity {
  text-align: left;
  position: sticky;
  left: 0;
  z-index: 2;
}
th.model,
td.model {
  left: 56px;
}
th.identity {
  background: var(--head);
  z-index: 6;
}
th.model button {
  justify-content: flex-start;
}
td.model {
  box-shadow: 1px 0 0 var(--line);
}
td.model a {
  color: var(--text);
  font-weight: 550;
  text-decoration: none;
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
}
td.model a:hover {
  color: var(--accent);
}
tbody tr:hover td {
  background: #f8fafc;
}
td.rank {
  color: var(--muted);
}
td.top {
  color: var(--accent);
  font-weight: 650;
}
td.primary {
  font-weight: 700;
  color: var(--accent);
  background: #fffaf5;
}
th.primary {
  color: var(--accent);
}
.group-row th {
  height: 36px;
  padding: 8px 6px;
  text-align: center;
  font-size: 12px;
  background: #edf1f5;
}
.group-row th:nth-child(even) {
  background: #e7edf2;
}
.group-start {
  border-left: 1px solid var(--line);
}
.table-footer {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-top: 10px;
  color: var(--muted);
  font-size: 11px;
}
.notice {
  padding: 10px 14px;
  margin-bottom: 12px;
  border: 1px solid #ecc69b;
  background: #fff7ec;
  color: #805020;
  border-radius: 6px;
  overflow-wrap: anywhere;
}
.hidden {
  display: none !important;
}
.empty {
  text-align: center;
  white-space: normal;
  color: var(--muted);
  height: 160px;
}
.submission {
  margin-top: 48px;
  border-top: 1px solid var(--line);
  padding-top: 32px;
}
.submission > p {
  color: var(--muted);
  max-width: 850px;
}
.steps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px 38px;
  padding: 0;
  list-style: none;
  counter-reset: step;
  margin: 26px 0;
}
.steps li {
  position: relative;
  padding-left: 36px;
  counter-increment: step;
}
.steps li:before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent);
  font-size: 12px;
  font-weight: 650;
}
.steps h3 {
  font-size: 14px;
  margin: 0 0 7px;
}
.steps p {
  font-size: 13px;
  color: var(--muted);
  margin: 0;
}
.steps code {
  font-size: 11px;
  overflow-wrap: anywhere;
}
.steps li > code {
  display: block;
  background: var(--head);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 9px;
  margin-top: 8px;
}
footer {
  border-top: 1px solid var(--line);
  padding-top: 18px;
  margin-top: 36px;
  font-size: 11px;
  color: var(--muted);
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
button:disabled,
select:disabled {
  opacity: 0.5;
  cursor: wait;
}
@media (min-width: 1500px) {
  main {
    max-width: 1360px;
  }
}
@media (max-width: 760px) {
  main {
    padding: 30px 18px 20px;
  }
  h1 {
    font-size: 36px;
  }
  .subtitle {
    font-size: 18px;
  }
  .introduction {
    margin-bottom: 34px;
  }
  .section-heading {
    align-items: start;
    flex-direction: column;
    gap: 10px;
  }
  .toolbar {
    flex-wrap: wrap;
  }
  .metric-control {
    margin-right: auto;
  }
  .search {
    order: 4;
    width: 100%;
    margin: 0;
  }
  .subtabs {
    gap: 20px;
  }
  .table-shell {
    height: 520px;
  }
  .steps {
    grid-template-columns: 1fr;
  }
  .table-footer {
    flex-wrap: wrap;
  }
  .introduction > p:not(.eyebrow):not(.subtitle) {
    font-size: 14px;
  }
  .menu-content {
    width: 210px;
  }
}
@media (prefers-reduced-motion: no-preference) {
  a,
  button,
  summary {
    transition:
      color 0.15s,
      background-color 0.15s;
  }
}
@media (max-width: 760px) {
  .metric-control {
    gap: 6px;
  }
  .metric-control select {
    min-width: 100px;
    width: 104px;
  }
  .menu summary {
    padding: 8px 9px;
  }
  .table-shell col:first-child {
    width: 56px !important;
  }
  .table-shell col:nth-child(2) {
    width: 152px !important;
  }
  th.model,
  td.model {
    left: 56px;
  }
}

/* Editorial introduction and contribution flow. */
.introduction {
  max-width: none;
  border-top: 3px solid var(--accent);
  padding-top: 28px;
}
.introduction h1 {
  font-size: 48px;
}
.introduction .subtitle {
  max-width: 780px;
  margin-bottom: 30px;
}
.intro-body {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  gap: 28px;
  border-top: 1px solid var(--line);
  padding-top: 24px;
}
.intro-body h2 {
  font-size: 16px;
  padding-top: 3px;
}
.intro-copy {
  max-width: 910px;
}
.intro-copy p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: #4c5865;
}
.intro-copy p:last-child {
  margin-bottom: 0;
}
.resource-links {
  margin-left: 188px;
  gap: 10px;
}
.resource-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fafbfc;
  min-height: 40px;
}
.resource-links a:first-child {
  background: var(--soft);
  border-color: #e8d5c6;
}
.resource-icon {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linejoin: round;
  stroke-linecap: round;
}
.resource-links .hf-icon {
  margin: 0;
  font-size: 18px;
  line-height: 1;
}
th.rank,
td.rank {
  text-align: center;
  padding-inline: 5px;
}
th.model,
td.model {
  text-align: left;
}
.group-row th.model {
  text-align: left;
}
.leaderboard > .metadata {
  justify-content: flex-end;
  border-top: 1px solid var(--line);
  padding-top: 12px;
  margin-top: 14px;
  gap: 0;
}
.metadata span + span:not(:empty)::before {
  content: "·";
  margin: 0 10px;
  color: #a0a8b0;
}
.submission {
  padding: 30px;
  background: #f8f9fa;
  border: 1px solid var(--line);
  border-radius: 12px;
  position: relative;
}
.submission-intro {
  max-width: 780px;
  margin-bottom: 0;
}
.steps {
  gap: 0;
  border-top: 1px solid var(--line);
  margin: 24px 0 0;
}
.steps li {
  padding: 24px 24px 24px 48px;
}
.steps li:nth-child(odd) {
  border-right: 1px solid var(--line);
}
.steps li:nth-child(-n + 2) {
  border-bottom: 1px solid var(--line);
}
.steps li:nth-child(even) {
  padding-left: 68px;
}
.steps li::before {
  top: 24px;
  left: 0;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  background: white;
  border: 1px solid #e7d4c5;
  border-radius: 50%;
}
.steps li:nth-child(even)::before {
  left: 22px;
}
.steps h3 {
  margin: 2px 0 8px;
  font-size: 15px;
}
.steps li > code {
  background: white;
}
@media (max-width: 760px) {
  .introduction {
    padding-top: 22px;
  }
  .introduction h1 {
    font-size: 36px;
  }
  .intro-body {
    grid-template-columns: 1fr;
    gap: 8px;
    padding-top: 18px;
  }
  .intro-copy p {
    font-size: 14px;
  }
  .resource-links {
    margin-left: 0;
  }
  .leaderboard > .metadata {
    justify-content: flex-start;
    font-size: 11px;
  }
  .submission {
    padding: 22px 18px;
  }
  .steps li,
  .steps li:nth-child(even) {
    padding: 22px 0 22px 44px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .steps li:last-child {
    border-bottom: 0;
    padding-bottom: 0;
  }
  .steps li::before,
  .steps li:nth-child(even)::before {
    left: 0;
    top: 22px;
  }
}

.arxiv-icon {
  width: 18px;
  height: 18px;
  fill: #b31b1b;
  flex-shrink: 0;
}
.command-panel {
  margin-top: 12px;
  border: 1px solid #33404c;
  border-radius: 8px;
  background: #202b36;
  overflow: hidden;
  box-shadow: 0 3px 8px #17212d0a;
}
.command-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  border-bottom: 1px solid #3c4650;
  background: #29343f;
  color: #c1cbd5;
  font-size: 11px;
}
.command-heading > span {
  letter-spacing: 0.06em;
}
.command-heading button {
  font-size: 11px;
  padding: 3px 7px;
  border: 1px solid #5a6570;
  border-radius: 4px;
  background: transparent;
  color: #e0e6ec;
}
.command-heading button:hover {
  background: #3b4854;
  border-color: #93a0ac;
}
.command-panel pre {
  margin: 0;
  padding: 14px;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  color: #e0e7ee;
  line-height: 1.85;
}
.command-panel code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
}
.syntax-program {
  color: #a8dabb;
}
.syntax-option {
  color: #a6c9ef;
}
.syntax-path {
  color: #f0cba3;
}
.syntax-value {
  color: #d6bbed;
}

/* A continuous four-step workflow, paired with a separate command example. */
.submission-flow {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 44px;
  align-items: stretch;
}
.submission-guide {
  min-width: 0;
}
.submission-flow .steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  margin: 30px 0 0;
  padding: 0;
  border: 0;
}
.submission-flow .steps li {
  padding: 0 0 0 46px;
  border: 0;
}
.submission-flow .steps li::before {
  left: 0;
  top: 0;
}
.submission-flow .steps li:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 15px;
  top: 38px;
  bottom: -14px;
  width: 1px;
  background: var(--line);
}
.submission-flow .steps h3 {
  margin-top: 2px;
  margin-bottom: 5px;
}
.validation-card {
  min-width: 0;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: white;
}
.validation-card h3 {
  font-size: 18px;
  line-height: 1.4;
  margin: 0 0 10px;
}
.validation-card > p:not(.eyebrow) {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
  margin: 0;
}
.validation-card .command-panel {
  margin-top: 18px;
  box-shadow: none;
}
@media (max-width: 760px) {
  .submission-flow {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .validation-card {
    margin-top: 16px;
    padding: 16px;
  }
  .validation-card h3 {
    font-size: 16px;
  }
  .validation-card .command-heading {
    flex-wrap: wrap;
    gap: 8px;
  }
  .validation-card .command-panel pre {
    padding: 12px;
  }
}

/* Prediction upload uses the existing contribution card and accent palette. */
.evaluation-button {
  display: inline-block;
  padding: 8px 13px;
  margin-top: 12px;
  border: 1px solid #cfd7df;
  border-radius: 6px;
  background: white;
  color: var(--text);
  font-size: 13px;
  font-weight: 600;
}
.evaluation-button:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
}
.evaluation-button:disabled { cursor: not-allowed; }
.evaluation-button.primary-action {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}
.evaluation-button.primary-action:hover:not(:disabled) {
  background: #914827;
  border-color: #914827;
  color: white;
}
.prediction-example {
  margin-top: 10px;
  font-size: 12px;
}
.prediction-example summary {
  width: fit-content;
  color: var(--accent);
  cursor: pointer;
  font-weight: 600;
}
.prediction-example code {
  display: block;
  margin-top: 8px;
  padding: 9px 11px;
  overflow-wrap: anywhere;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: white;
  color: var(--text);
}
#evaluation-form fieldset {
  border: 0;
  padding: 0;
  margin: 20px 0 0;
  min-width: 0;
  display: grid;
  gap: 8px;
}
#evaluation-form label { font-size: 13px; font-weight: 600; }
#evaluation-form label:not(:first-of-type) { margin-top: 8px; }
#evaluation-form label span, #evaluation-file-help { color: var(--muted); font-weight: 400; }
#evaluation-form input { width: 100%; min-width: 0; }
#evaluation-form input:disabled { background: var(--head); }
#evaluation-file { font-size: 12px; }
#evaluation-status { color: var(--muted); font-size: 13px; }
#evaluation-status:empty { margin: 0; }
#evaluation-error { margin: 12px 0 0; }
.evaluation-report { border-top: 1px solid var(--line); margin-top: 28px; padding-top: 24px; }
.evaluation-report h3 { margin: 0 0 10px; font-size: 20px; }
.evaluation-report p { overflow-wrap: anywhere; }
#evaluation-unavailable { color: var(--muted); font-size: 13px; }
.evaluation-table { overflow: auto; border: 1px solid var(--line); border-radius: 8px; }
.evaluation-table table { min-width: 640px; }
.evaluation-table thead { position: static; }
.evaluation-table td { white-space: normal; overflow-wrap: anywhere; }
.evaluation-table:focus-visible, .evaluation-report:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.evaluation-actions { display: flex; flex-wrap: wrap; gap: 10px; }
#submission-dialog {
  width: min(440px, calc(100vw - 36px));
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 20px 60px #17212d33;
}
#submission-dialog::backdrop { background: #17212d73; }
.submission-dialog-content { padding: 28px; }
.submission-dialog-content h3 { margin: 0 0 10px; font-size: 20px; }
.submission-dialog-content > p:not(.eyebrow) { color: var(--muted); line-height: 1.65; }

/* Model comparison shares the table's metric, search and parameter filters. */
.performance-chart { margin: 4px 0 28px; border: 1px solid var(--line); border-radius: 16px; background: var(--paper); box-shadow: 0 3px 12px #17212d06; overflow: hidden; }
.chart-heading { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 22px 26px; border-bottom: 1px solid var(--line); }
.chart-heading h3 { margin: 0; font-size: 21px; }
.chart-heading p { margin: 4px 0 0; color: var(--muted); }
.chart-heading select { max-width: 290px; }
.chart-scroll { overflow-x: auto; padding: 18px 12px 0; }
.chart-scroll svg { display: block; min-width: 100%; }
.chart-scroll:focus-visible { outline: 2px solid var(--accent); outline-offset: -3px; }
.chart-empty { padding: 60px 20px; text-align: center; color: var(--muted); }
@media (max-width: 700px) {
  .chart-heading { align-items: flex-start; flex-direction: column; padding: 18px; }
  .chart-heading select { max-width: 240px; }
}

.performance-chart { border-radius: 9px; box-shadow: none; }
.chart-heading { border-bottom: 0; padding-bottom: 8px; }
.chart-heading h3 { font-family: Georgia, serif; font-weight: 500; font-size: 23px; }