:root {
  --type-title: 2.5rem;
  --type-section: 2rem;
  --type-subsection: 1.5rem;
  --type-body: 1.25rem;
  --type-caption: 1.125rem;
  --type-family: 'Noto Sans', Arial, sans-serif;
  --diagram-blue: #405f6f;
  --diagram-coral: #b64c3c;
}

body { font-family: var(--type-family); font-size: var(--type-body); }
.page-header { font-family: var(--type-family); }
.title-lead, .title-detail { font-size: var(--type-title); }
.authors, .venue { font-size: var(--type-body); }
.affiliations, .resource-links a, .copy-button { font-size: var(--type-caption); }
.section h2 {
  font-family: var(--type-family);
  font-size: var(--type-section);
  line-height: 1.3;
  letter-spacing: -.02em;
}
.abstract-section p, .video-card h4 { font-size: var(--type-body); }
.footer { font-size: var(--type-caption); }

.insights-section { padding-block: 4rem; }
.insights-section h2 { margin: 0 0 2rem; text-align: left; }
.insight h3 {
  margin: 0 0 1rem;
  color: #363636;
  font-size: var(--type-subsection);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -.01em;
}
.insight > p { margin: 0 0 1.5rem; text-align: left; line-height: 1.7; }

.separation-diagram {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 40px minmax(0, 1fr);
  align-items: center;
  gap: 1rem;
  margin-top: 2rem;
}
.separation-part {
  align-self: stretch;
  padding: 1.5rem;
  border-top: 3px solid;
  text-align: left;
}
.learning-part { border-color: var(--diagram-blue); background: #f2f6f8; }
.execution-part { border-color: var(--diagram-coral); background: #fbf4f2; }

.separation-part .diagram-label {
  margin: 0 0 1rem;
  font-size: var(--type-body);
  font-weight: 700;
  line-height: 1.5;
}
.learning-part .diagram-label { color: var(--diagram-blue); }
.execution-part .diagram-label { color: var(--diagram-coral); }
.separation-part h4 {
  margin: 0 0 .5rem;
  color: #363636;
  font-size: var(--type-body);
  font-weight: 600;
  line-height: 1.5;
}
.diagram-note {
  display: block;
  margin-top: 1rem;
  color: #657079;
  font-size: var(--type-caption);
  line-height: 1.6;
}
.separation-connector svg {
  display: block;
  width: 40px;
  height: 24px;
  fill: none;
  stroke: #929ba3;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.constraints-insight {
  margin-top: 3rem;
  padding-top: 3rem;
  border-top: 1px solid #e3e7ea;
}
.insight-figure { margin: 2rem 0; }
.insight-figure > a { display: block; cursor: zoom-in; }
.insight-figure img { display: block; width: 100%; height: auto; }
.insight-figure figcaption {
  margin-top: 1rem;
  color: #657079;
  font-size: var(--type-caption);
  line-height: 1.6;
  text-align: left;
}
.adaptation-grid { gap: 1.5rem 1.25rem; margin-top: 2rem; }
.adaptation-grid h4 { font-size: var(--type-caption); }

.experiments-section { padding-block: 3rem 3.5rem; }
.experiments-section h2 { margin-bottom: .75rem; }
.experiments-section h2 + p { margin: 0; }
.task-player { margin-top: 1.75rem; }
.task-player figcaption { margin-top: .75rem; color: #363636; font-size: var(--type-caption); line-height: 1.5; }
.task-player figcaption span { color: #657079; }
.task-list { margin: 1.5rem 0 0; padding: 0; list-style: none; border-bottom: 1px solid #e1e4e6; }
.task {
  display: grid;
  grid-template-columns: 128px minmax(0, 1fr) auto;
  align-items: center;
  gap: 1.25rem;
  width: 100%;
  padding: .75rem 1rem .75rem .75rem;
  border: 0;
  border-top: 1px solid #e1e4e6;
  background: none;
  color: inherit;
  text-align: left;
  cursor: pointer;
}
.task:hover { background: #fafafa; }
.task[aria-pressed="true"] { background: #fff; box-shadow: inset 3px 0 0 #363636; }
.task img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; background: #222; }
.task-name { display: block; color: #363636; font-size: 1.1875rem; font-weight: 600; line-height: 1.4; }
.task-note { display: block; margin-top: .125rem; color: #657079; font-size: 1rem; line-height: 1.5; }
.task-length { color: #657079; font-size: 1rem; font-variant-numeric: tabular-nums; }

@media (max-width: 640px) {
  :root {
    --type-title: 1.75rem;
    --type-section: 1.625rem;
    --type-subsection: 1.3125rem;
    --type-body: 1.125rem;
    --type-caption: 1rem;
  }
  .insights-section { padding-block: 3rem; }
  .separation-diagram { grid-template-columns: 1fr; }
  .separation-part { padding: 1.5rem; }
  .separation-connector { justify-self: center; }
  .separation-connector svg { transform: rotate(90deg); }
  .constraints-insight { margin-top: 3rem; padding-top: 3rem; }
  .insight-figure { margin: 1.5rem 0; }
  .task { grid-template-columns: 96px minmax(0, 1fr); gap: .875rem; padding: .625rem .5rem; }
  .task-name { font-size: 1.0625rem; }
  .task-note { font-size: .9375rem; }
  .task-length { display: none; }
}