:root {
  color-scheme: light;
  --page: rgb(255, 253, 249);
  --paper: rgb(255, 253, 249);
  --paper-soft: #f7f7f5;
  --ink: #000000;
  --ink-soft: #28303d;
  --muted: #39414d;
  --secondary: #6d6d6d;
  --rule: #d1d1d1;
  --rule-soft: #e5e5e5;
  --blue: #2f5f7f;
  --blue-soft: #d1dfe4;
  --gray-blue: #abb8c3;
  --green: #0f766e;
  --green-soft: #d5e6df;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--page);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  font-size: 16px;
  font-weight: 300;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

button,
select,
input {
  font: inherit;
}

.compare-shell {
  width: min(1540px, calc(100vw - 34px));
  margin: 0 auto;
  padding: 10px 0 18px;
}

.compare-topbar {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 14px;
}

.back-link {
  display: inline-block;
  color: #666666;
  font-size: 0.86rem;
  text-decoration: none;
  white-space: nowrap;
  border-bottom: 1px solid var(--gray-blue);
}

.back-link:hover {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  max-width: 920px;
  font-size: clamp(2.1rem, 4.5vw, 4.6rem);
  font-weight: 300;
  line-height: 1;
  letter-spacing: 0;
}

.compare-controls {
  display: grid;
  grid-template-columns: minmax(230px, 1fr) minmax(220px, 1.25fr) repeat(2, minmax(150px, 1fr)) minmax(150px, 0.8fr);
  gap: 12px;
  align-items: end;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
}

.control-group,
.slider-group {
  min-width: 0;
}

label {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 7px;
  color: var(--ink);
  font-size: 0.82rem;
  font-weight: 300;
}

output {
  color: var(--secondary);
}

select {
  width: 100%;
  min-height: 40px;
  padding: 9px 10px;
  color: var(--ink);
  background: var(--page);
  border: 1px solid var(--rule);
  border-radius: 0;
  font-weight: 300;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--blue);
}

.split-control {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  min-height: 40px;
  background: var(--paper-soft);
  border: 1px solid var(--rule);
}

.mode-tab {
  min-height: 38px;
  color: var(--muted);
  background: transparent;
  border: 0;
}

.mode-tab + .mode-tab {
  border-left: 1px solid var(--rule);
}

.mode-tab.active {
  color: var(--ink);
  background: var(--blue-soft);
}

button {
  min-height: 40px;
  color: var(--ink);
  background: var(--page);
  border: 1px solid var(--rule);
  border-radius: 0;
  font-weight: 300;
  cursor: pointer;
}

button:hover,
select:hover {
  border-color: var(--muted);
}

button:focus-visible,
select:focus-visible,
input:focus-visible,
a:focus-visible {
  outline: 2px solid rgba(47, 95, 127, 0.35);
  outline-offset: 2px;
}

.primary-button {
  background: var(--blue-soft);
  border-color: var(--gray-blue);
}

.compare-summary {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 10px;
  margin: 12px 0;
}

.compare-summary > div {
  min-height: 64px;
  padding: 12px 14px;
  background: var(--paper-soft);
  border: 1px solid var(--rule-soft);
}

.summary-label {
  display: block;
  margin-bottom: 7px;
  color: var(--secondary);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.compare-summary strong {
  display: block;
  color: var(--muted);
  font-size: 0.93rem;
  font-weight: 300;
  line-height: 1.58;
}

.model-wall {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.model-card {
  min-width: 0;
  background: var(--paper);
  border: 1px solid var(--rule);
}

.model-card.leader {
  border-color: var(--green);
}

.model-card-header {
  min-height: 78px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: start;
  padding: 12px 13px 10px;
  border-bottom: 1px solid var(--rule-soft);
}

.model-card h2 {
  margin-bottom: 5px;
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.25;
}

.model-subtitle {
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.35;
}

.model-wiki-link {
  color: #666666;
  font-size: 0.74rem;
  text-decoration: none;
  border-bottom: 1px solid var(--gray-blue);
}

.model-wiki-link:hover {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

.score-pill {
  min-width: 66px;
  padding: 6px 8px;
  color: var(--ink);
  background: var(--paper-soft);
  border: 1px solid var(--rule-soft);
  text-align: center;
  font-size: 0.82rem;
  white-space: nowrap;
}

.leader .score-pill {
  background: var(--green-soft);
  border-color: var(--green);
}

.mini-chart {
  width: 100%;
  display: block;
  background: var(--page);
  border-bottom: 1px solid var(--rule-soft);
}

.domain-bg {
  stroke: none;
  opacity: 0.24;
}

.axis-frame {
  fill: none;
  stroke: #cbd5e1;
  stroke-width: 1;
}

.axis-line {
  stroke: #d8dee9;
  stroke-width: 1;
}

.sample-point {
  stroke: var(--page);
  stroke-width: 1;
}

.sample-point.test.correct {
  stroke: var(--ink);
  stroke-width: 1.9;
}

.sample-point.test.wrong {
  stroke: var(--ink);
  stroke-width: 1.9;
  stroke-dasharray: 2 2;
}

.boundary-line {
  fill: none;
  stroke: var(--ink);
  stroke-width: 1.2;
  stroke-dasharray: 6 5;
}

.tree-split {
  stroke: var(--ink);
  stroke-width: 0.85;
  stroke-dasharray: 3 4;
  opacity: 0.5;
}

.support-vector {
  fill: none;
  stroke: var(--ink);
  stroke-width: 0.85;
  opacity: 0.34;
}

.centroid {
  stroke: var(--ink);
  stroke-width: 1.5;
  paint-order: stroke;
}

.density-ring {
  fill: none;
  stroke: var(--ink);
  stroke-width: 0.85;
  opacity: 0.2;
}

.graph-link {
  stroke: var(--secondary);
  stroke-width: 0.55;
  opacity: 0.16;
}

.model-card-footer {
  display: grid;
  gap: 9px;
  min-height: 94px;
  padding: 10px 13px;
}

.model-controls {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 10px;
  align-items: end;
}

.model-control {
  min-width: 0;
}

.model-control label {
  margin-bottom: 3px;
  font-size: 0.68rem;
}

.model-control input[type="range"] {
  display: block;
}

.param-line,
.correct-line {
  margin: 0;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.35;
}

.correct-line {
  color: var(--secondary);
  text-align: left;
  white-space: nowrap;
}

.compare-footer {
  margin-top: 14px;
  color: var(--secondary);
  font-size: 0.68rem;
  text-align: right;
}

.compare-footer a {
  color: #666666;
  text-decoration: none;
  border-bottom: 1px solid var(--gray-blue);
}

.compare-footer a:hover {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

@media (max-width: 1280px) {
  .compare-controls {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .model-wall {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 920px) {
  .compare-shell {
    width: min(100vw - 18px, 820px);
  }

  .compare-topbar {
    align-items: flex-start;
    flex-direction: column;
    padding-bottom: 18px;
  }

  .compare-summary {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 620px) {
  h1 {
    font-size: clamp(2.1rem, 14vw, 3.45rem);
  }

  .compare-controls,
  .model-wall {
    grid-template-columns: 1fr;
  }

  .model-card-header,
  .model-card-footer {
    grid-template-columns: 1fr;
  }

  .score-pill,
  .correct-line {
    text-align: left;
  }
}