.longhorn-regression-explorer {
  --longhorn-ink: #252329;
  --longhorn-muted: #6f6b76;
  --longhorn-paper: #f1f0ec;
  --longhorn-rule: #e4e1e7;
  --longhorn-primary: #645495;
  --longhorn-secondary: #c76b4b;
  margin: 2.5rem 0;
  color: var(--longhorn-ink);
  font-family: "Source Sans 3", sans-serif;
}

.longhorn-regression-explorer__intro {
  margin-bottom: 1rem;
}

.longhorn-regression-explorer__eyebrow,
.longhorn-regression-explorer__label,
.longhorn-regression-explorer__count {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.longhorn-regression-explorer__eyebrow {
  margin: 0 0 0.3rem;
  color: var(--longhorn-primary);
}

.longhorn-regression-explorer__intro h4 {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.35rem;
  line-height: 1.2;
}

.longhorn-regression-explorer__intro p:last-child {
  margin: 0.55rem 0 0;
  color: var(--longhorn-muted);
  line-height: 1.5;
}

.longhorn-regression-explorer__body {
  position: relative;
}

.longhorn-regression-explorer__stage {
  position: sticky;
  top: 1rem;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(10rem, 0.6fr);
  gap: clamp(1rem, 4vw, 2.5rem);
  align-items: center;
  padding: clamp(1rem, 3vw, 1.75rem);
  border: 1px solid var(--longhorn-rule);
  border-radius: 6px;
  background: var(--longhorn-paper);
}

.longhorn-regression-explorer__chart-header {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.45rem;
}

.longhorn-regression-explorer__label {
  color: var(--longhorn-ink);
}

.longhorn-regression-explorer__count {
  color: var(--longhorn-muted);
  text-align: right;
}

.longhorn-regression-explorer__canvas {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  border-top: 1px solid var(--longhorn-rule);
  border-bottom: 1px solid var(--longhorn-rule);
}

.longhorn-regression-explorer__legend {
  display: flex;
  gap: 1rem;
  margin: 0.65rem 0 0;
  color: var(--longhorn-muted);
  font-size: 0.78rem;
}

.longhorn-regression-explorer__legend span::before {
  display: inline-block;
  width: 0.75rem;
  height: 0.14rem;
  margin-right: 0.35rem;
  vertical-align: middle;
  content: "";
}

.longhorn-regression-explorer__legend span:first-child::before { background: var(--longhorn-primary); }
.longhorn-regression-explorer__legend span:last-child::before { background: var(--longhorn-secondary); }

.longhorn-regression-explorer__state {
  display: grid;
  gap: 0.85rem;
}

.longhorn-regression-explorer__beta-control {
  display: grid;
  gap: 0.4rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--longhorn-rule);
}

.longhorn-regression-explorer__beta-input {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 2.6rem;
  gap: 0.65rem;
  align-items: center;
}

.longhorn-regression-explorer__beta-input input {
  width: 100%;
  accent-color: var(--longhorn-primary);
}

.longhorn-regression-explorer__beta-input output {
  color: var(--longhorn-primary);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.85rem;
  text-align: right;
}

.longhorn-regression-explorer__parameter {
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--longhorn-rule);
}

.longhorn-regression-explorer__parameter:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.longhorn-regression-explorer__parameter-name {
  display: block;
  margin-bottom: 0.2rem;
  color: var(--longhorn-muted);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.7rem;
}

.longhorn-regression-explorer__parameter-value {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.45rem;
  font-weight: 600;
}

.longhorn-regression-explorer__residual {
  color: var(--longhorn-muted);
  font-size: 0.86rem;
  line-height: 1.4;
}

.longhorn-regression-explorer__residual strong {
  color: var(--longhorn-secondary);
  font-family: "IBM Plex Mono", monospace;
  font-weight: 500;
}

.longhorn-regression-explorer__steps {
  height: 420svh;
  pointer-events: none;
}

.longhorn-regression-explorer__step {
  min-height: 70svh;
}

@media (max-width: 640px) {
  .longhorn-regression-explorer__stage {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .longhorn-regression-explorer__steps {
    height: 360svh;
  }

  .longhorn-regression-explorer__step {
    min-height: 60svh;
  }
}