:root {
  --paper: #fbfbf8;
  --panel: #ffffff;
  --ink: #111111;
  --muted: #6c6f75;
  --line: #dcdedc;
  --line-dark: #111111;
  --accent: #ff7a1a;
  --accent-soft: #fff0e5;
  --good: #0f766e;
  --bad: #b91c1c;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
}

a {
  color: inherit;
}

.topbar {
  height: 58px;
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 0 16px;
  border-bottom: 1px solid var(--line-dark);
  background: var(--panel);
  position: sticky;
  top: 0;
  z-index: 20;
}

.wordmark {
  font-family: var(--mono);
  font-weight: 900;
  text-decoration: none;
  letter-spacing: 0;
}

.topnav {
  display: flex;
  gap: 22px;
  font-family: var(--mono);
  font-size: 14px;
}

.topnav a {
  color: var(--muted);
  text-decoration: none;
}

.topnav a.active,
.topnav a:hover {
  color: var(--ink);
}

.layout {
  display: grid;
  grid-template-columns: 264px minmax(0, 1fr);
  min-height: calc(100vh - 58px);
}

.directory {
  border-right: 1px solid var(--line-dark);
  background: #f3f3ef;
}

.directoryHeader,
.pathbar {
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line-dark);
  padding: 0 12px;
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
}

.tree {
  padding: 14px 12px;
  display: grid;
  gap: 8px;
  font-family: var(--mono);
  font-size: 14px;
}

.tree a {
  min-height: 28px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 6px;
  color: var(--muted);
  text-decoration: none;
}

.tree a.active,
.tree a:hover {
  background: #ddddda;
  color: var(--ink);
}

.tree .indent {
  margin-left: 20px;
}

.page {
  min-width: 0;
}

.pathbar {
  padding: 0 18px;
  text-transform: none;
  background: var(--panel);
}

.tag {
  margin-left: 8px;
  padding: 5px 9px;
  border: 1px solid var(--line-dark);
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
}

.tag.muted {
  border-color: var(--line);
  color: var(--muted);
}

.hero {
  padding: 34px 32px 26px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

.hero h1 {
  max-width: 1120px;
  margin: 0 0 14px;
  font-size: clamp(2rem, 4vw, 3.9rem);
  line-height: 1.03;
  letter-spacing: 0;
}

.authors,
.affiliation {
  margin: 0 0 8px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.65;
}

.badges,
.tabs {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.badges span,
.tabs button,
.outlineLink,
button {
  min-height: 38px;
  border: 1px solid var(--line-dark);
  background: var(--panel);
  color: var(--ink);
  padding: 0 14px;
  font-family: var(--mono);
  font-size: 12px;
  text-decoration: none;
  cursor: pointer;
}

.tabs button.active,
.tabs button:hover,
.outlineLink:hover,
button:hover {
  background: var(--ink);
  color: #ffffff;
}

.summaryBand {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--line);
  background: #f7f7f4;
}

.summaryBand div {
  min-height: 88px;
  padding: 16px 24px;
  border-right: 1px solid var(--line);
}

.summaryBand span {
  display: block;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
}

.summaryBand strong {
  display: block;
  margin-top: 5px;
  font-size: 2rem;
}

.leaderboard,
.plotSection {
  padding: 26px 32px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

.sectionHeader {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: end;
  margin-bottom: 16px;
}

.sectionLabel {
  margin: 0 0 4px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
}

.sectionHeader h2 {
  margin: 0;
  font-size: 1.7rem;
}

.tables {
  display: grid;
  gap: 18px;
}

.tableBlock {
  border: 1px solid var(--line);
  overflow: auto;
}

.tableBlock h3 {
  margin: 0;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  background: #f7f7f4;
  font-size: 1rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th,
td {
  padding: 9px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  white-space: nowrap;
}

th {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  background: #fafaf7;
}

.workbench {
  padding: 8px 32px 28px;
  display: grid;
  grid-template-columns: 286px minmax(0, 1fr);
  gap: 16px;
  background: var(--paper);
}

.controlPanel,
.viewer,
.dataSection {
  border: 1px solid var(--line);
  background: var(--panel);
}

.controlPanel {
  align-self: start;
  position: sticky;
  top: 72px;
}

.panelTitle,
.panelHeader {
  min-height: 42px;
  padding: 0 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
}

.panelTitle strong {
  color: var(--ink);
  font-size: 18px;
}

.field {
  display: grid;
  gap: 7px;
  padding: 12px;
  border-bottom: 1px solid var(--line);
}

.field span {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
}

select {
  width: 100%;
  min-height: 36px;
  border: 1px solid var(--line-dark);
  border-radius: 0;
  background: var(--panel);
  color: var(--ink);
}

.stats {
  padding: 12px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.7;
}

.stats strong {
  color: var(--ink);
}

.viewer {
  min-width: 0;
  display: grid;
  grid-template-rows: auto auto auto;
  overflow: hidden;
}

.viewerHeader {
  min-height: 74px;
  padding: 14px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--line);
}

.viewerHeader p {
  margin: 0 0 4px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
}

.viewerHeader h2 {
  margin: 0;
  font-size: 1.45rem;
}

.viewerBody {
  display: grid;
  grid-template-columns: minmax(360px, 0.8fr) minmax(280px, 0.5fr);
  gap: 0;
  border-bottom: 1px solid var(--line);
}

.puzzleStage {
  min-height: 420px;
  display: grid;
  place-items: center;
  padding: 24px;
  background: #f4f4ef;
  border-right: 1px solid var(--line);
}

.puzzleStage img {
  width: min(100%, 540px);
  max-height: 540px;
  object-fit: contain;
  background: #ffffff;
  border: 1px solid var(--line);
}

.inspector {
  padding: 16px;
}

.metaGrid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.metric {
  min-height: 68px;
  padding: 10px;
  border: 1px solid var(--line);
  background: #fbfbf8;
}

.metric span {
  display: block;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
}

.metric strong {
  display: block;
  margin-top: 5px;
  font-size: 1.1rem;
}

.gridPreview {
  margin-top: 14px;
  display: grid;
  gap: 4px;
}

.gridRow {
  display: grid;
  gap: 4px;
}

.gridCell {
  min-height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  background: #ffffff;
  font-family: var(--mono);
  font-size: 12px;
}

.gridCell.car {
  background: #111111;
  color: #ffffff;
}

.gridCell.target {
  outline: 2px solid var(--accent);
}

.promptPanel {
  min-width: 0;
}

pre {
  max-height: 330px;
  margin: 0;
  padding: 16px;
  overflow: auto;
  white-space: pre-wrap;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.55;
  background: #101010;
  color: #f5f5f2;
}

.solutionBox {
  display: none;
  border-top: 1px solid var(--line);
}

.solutionBox.visible {
  display: block;
}

.dataSection {
  grid-column: 1 / -1;
}

.sampleGrid {
  height: 620px;
  overflow: auto;
  padding: 12px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 12px;
}

.card {
  border: 1px solid var(--line);
  background: #ffffff;
  cursor: pointer;
}

.card.active,
.card:hover {
  border-color: var(--line-dark);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
  display: block;
  background: #f5f5ef;
  border-bottom: 1px solid var(--line);
}

.cardBody {
  padding: 10px;
}

.card h3 {
  margin: 0 0 6px;
  font-size: 0.95rem;
}

.meta {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.pill {
  display: inline-block;
  margin: 0 4px 5px 0;
  padding: 2px 7px;
  border: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
}

.plotGrid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.plotCard {
  border: 1px solid var(--line);
  background: #ffffff;
  cursor: zoom-in;
  transition: box-shadow 0.15s;
}

.plotCard:hover {
  border-color: var(--line-dark);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.plotCard img {
  width: 100%;
  display: block;
  border-bottom: 1px solid var(--line);
  aspect-ratio: 4/3;
  object-fit: contain;
  background: #fafaf7;
}

.plotCard p {
  margin: 0;
  padding: 10px 12px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
}

tr.rank-1 {
  background: #dcfce7;
}

tr.rank-2 {
  background: #f0fdf4;
}

tr.rank-3 {
  background: #f7fef9;
}

.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.82);
  z-index: 100;
  align-items: center;
  justify-content: center;
}

.lightbox.open {
  display: flex;
}

.lightboxInner {
  position: relative;
  max-width: min(94vw, 1100px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.lightboxInner img {
  width: 100%;
  max-height: 82vh;
  object-fit: contain;
  background: #ffffff;
  border: 1px solid #444;
}

.lightboxInner p {
  margin: 0;
  color: #cccccc;
  font-family: var(--mono);
  font-size: 12px;
  text-transform: uppercase;
}

.lightboxInner button {
  margin-top: 4px;
  min-height: 34px;
  border: 1px solid #888;
  background: transparent;
  color: #ffffff;
  font-family: var(--mono);
  font-size: 12px;
  cursor: pointer;
}

.lightboxInner button:hover {
  background: #ffffff;
  color: #111111;
}

@media (max-width: 1100px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .directory {
    display: none;
  }

  .workbench,
  .viewerBody {
    grid-template-columns: 1fr;
  }

  .controlPanel {
    position: static;
  }

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

@media (max-width: 900px) {
  .plotGrid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 720px) {
  .hero,
  .leaderboard,
  .plotSection,
  .workbench {
    padding-left: 16px;
    padding-right: 16px;
  }

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

  .sectionHeader,
  .viewerHeader {
    align-items: flex-start;
    flex-direction: column;
  }

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