.explainer {
  --blue: #24557a;
  --gold: #946427;
  --green: #286451;
  --red: #97483e;
  margin: 28px 0;
  padding: clamp(18px, 4vw, 32px);
  border: 1px solid var(--rule);
  border-top: 3px solid var(--accent);
  background: #f6f5f0;
}
.explainer h3 { font-size: 1.45rem; }
.explainer p { font-size: .98rem; }
.explainer .experiment-label, .explainer label, .explainer button,
.explainer output, .explainer .readout, .explainer .diagram,
.explainer .legend, .explainer .step-count {
  font-family: Arial, Helvetica, sans-serif;
}
.experiment-label { font-size: .7rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); margin-bottom: 12px; }
.explainer [hidden] { display: none !important; }
.experiment-controls { display: flex; flex-wrap: wrap; gap: 12px 24px; margin: 22px 0; align-items: end; }
.slider-control { flex: 1 1 220px; min-width: 0; }
.slider-control label { display: flex; justify-content: space-between; gap: 12px; font-size: .86rem; }
.slider-control output { font-weight: bold; color: var(--accent); }
.explainer input[type="range"] { width: 100%; min-height: 40px; accent-color: var(--accent); cursor: pointer; }
.explainer button { min-height: 44px; padding: 10px 16px; border: 1px solid var(--accent); background: var(--bg); color: var(--accent); cursor: pointer; font-size: .85rem; border-radius: 3px; }
.explainer button.primary { background: var(--accent); color: #fff; }
.explainer button:hover { background: #e7eced; }
.explainer button.primary:hover { background: #24557a; }
.explainer button:disabled { opacity: .45; cursor: default; }
.explainer button[aria-pressed="true"] { background: var(--accent); color: #fff; }
.explainer button:focus-visible, .explainer input:focus-visible { outline: 3px solid var(--gold); outline-offset: 4px; }
.experiment-controls .step-count { color: var(--muted); font-size: .8rem; align-self: center; }
.experiment-caption { color: var(--muted); font-size: .88rem !important; margin-bottom: 0; }
.experiment-status { min-height: 4.9em; padding: 16px 0 0; margin-bottom: 0; border-top: 1px solid var(--rule); }
.comparison { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 24px 0; }
.comparison-card { min-width: 0; padding: 20px; border: 1px solid var(--rule); background: var(--bg); transition: border-color .4s, background-color .4s; }
.comparison-card h4 { font: bold 1rem Arial, Helvetica, sans-serif; margin: 0 0 18px; }
.comparison-card .subtle { font-size: .83rem; color: var(--muted); }
.bit-strip { display: flex; flex-wrap: wrap; gap: 5px; min-height: 65px; align-content: start; }
.bit { display: inline-grid; place-items: center; width: 26px; height: 30px; background: var(--blue); color: #fff; font: bold .9rem Arial, Helvetica, sans-serif; border-radius: 3px; }
.bit.nuisance { background: var(--gold); transition: opacity .6s, transform .6s; }
.legend { font-size: .76rem; color: var(--muted); margin: 12px 0; }
.legend span { display: inline-block; margin-right: 14px; }
.legend i { display: inline-block; width: 9px; height: 9px; background: var(--blue); margin-right: 5px; }
.legend .nuisance-key { background: var(--gold); }
.meter-label { font: .79rem Arial, Helvetica, sans-serif; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 4px 12px; margin: 15px 0 7px; }
.meter-label strong { font-variant-numeric: tabular-nums; }
.meter-track { height: 13px; background: #e5e3db; overflow: hidden; border-radius: 2px; }
.meter-fill { display: block; height: 100%; background: var(--blue); transition: width .55s ease; }
.meter-fill.relevance { background: var(--green); }
.readout { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin: 24px 0; }
.readout > div { padding-top: 14px; border-top: 1px solid var(--rule); min-width: 0; }
.readout dt { font-size: .76rem; color: var(--muted); }
.readout dd { margin: 4px 0 0; font-size: 1.55rem; font-weight: bold; color: var(--accent); font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.readout small { display: block; font-size: .73rem; font-weight: normal; color: var(--muted); margin-top: 4px; }
[data-reduced="true"] .full-source .bit.nuisance { opacity: .18; transform: translateY(8px); }
[data-reduced="true"] .reduced-source { border-color: var(--green); background: #eef4f0; }
.tree { text-align: center; margin: 26px 0; }
.tree-root { max-width: 230px; margin: auto; border: 1px solid var(--accent); background: var(--bg); padding: 15px; border-radius: 4px; }
.tree-root strong { display: block; font-size: 1rem; }
.tree-root span { display: block; font-size: .78rem; color: var(--muted); margin-top: 6px; }
.tree-connectors { width: 100%; height: 34px; display: block; }
.tree-connectors line { stroke: var(--rule); stroke-width: 2; vector-effect: non-scaling-stroke; }
.tree[data-active="true"] .active-link { stroke: var(--blue); stroke-width: 3; }
.branches { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.branch { border: 1px solid var(--rule); padding: 16px; background: var(--bg); border-radius: 4px; min-width: 0; }
.branch.active { border-color: var(--blue); }
.branch > strong { font-size: .91rem; display: block; }
.branch .incoming { font-size: 1.6rem; color: var(--accent); display: block; font-weight: bold; margin: 8px 0 0; }
.branch .incoming-label { font-size: .71rem; display: block; color: var(--muted); }
.signal { display: inline-block; padding: 4px 8px; margin: 12px 0; background: var(--panel); font-size: .76rem; border-radius: 3px; min-height: 30px; }
.signal.decoded { color: #fff; background: var(--green); }
.leaves { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; padding-top: 12px; border-top: 1px solid var(--rule); }
.leaf { padding: 8px 3px; border: 1px solid var(--rule); border-radius: 3px; }
.leaf.selected { border: 2px solid var(--blue); background: #e8f0f5; padding: 7px 2px; }
.leaf strong, .leaf span { display: block; }
.leaf strong { font-size: .95rem; }
.leaf span { font-size: .78rem; margin-top: 4px; font-variant-numeric: tabular-nums; }
.path-label { font-size: .83rem; text-align: center; color: var(--muted); margin-top: 16px; }
.round-progress { display: flex; gap: 5px; margin: 18px 0; }
.round-progress span { height: 4px; flex: 1; background: var(--rule); }
.round-progress span.done { background: var(--accent); }
.range-band { margin: 26px 0; }
.band-segments { display: flex; height: 15px; border-radius: 3px; overflow: hidden; }
.band-segments span:first-child { flex: 6; background: #c6bda7; }
.band-segments span:nth-child(2) { flex: 26; background: var(--green); }
.band-segments span:last-child { flex: 16; background: #b47c72; }
.band-position { height: 17px; position: relative; }
.band-position i { position: absolute; left: 15.625%; border-left: 6px solid transparent; border-right: 6px solid transparent; border-top: 9px solid var(--ink); transform: translateX(-50%); transition: left .25s; }
.band-labels { display: flex; justify-content: space-between; font: .76rem Arial, Helvetica, sans-serif; color: var(--muted); }
.pool-grid { display: flex; flex-wrap: wrap; gap: 7px; margin: 24px 0; align-items: stretch; }
.pool { border: 1px solid var(--rule); background: var(--bg); border-radius: 3px; padding: 7px; flex: 0 1 90px; min-width: 47px; }
.pool.small { border-color: var(--red); }
.pool-label { display: block; font: .66rem Arial, Helvetica, sans-serif; color: var(--muted); margin-bottom: 7px; }
.pool-members { display: flex; flex-wrap: wrap; gap: 3px; }
.pool-members i { width: 5px; height: 5px; background: var(--blue); border-radius: 50%; }
.pool.small .pool-members i { background: var(--red); }
.pass { color: var(--green) !important; }
.fail { color: var(--red) !important; }
.scenario-proposal { border-left: 3px solid var(--accent); padding: 14px 18px; background: var(--bg); font-size: .94rem; }
.context-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin: 24px 0; }
.context-card { border: 1px solid var(--rule); padding: 20px 14px; background: var(--bg); transition: opacity .4s, border-color .4s; min-width: 0; }
.context-card h4 { font: bold .92rem Arial, Helvetica, sans-serif; margin: 12px 0; }
.context-card p { font-size: .83rem; margin-bottom: 0; }
.context-card .effect { font: bold .75rem Arial, Helvetica, sans-serif; color: var(--green); }
.context-card.adverse .effect { color: var(--red); }
.context-card.future { border-style: dashed; background: var(--panel); }
.context-card.current { border-color: var(--accent); }
.effect-symbol { font: 1.75rem Arial, Helvetica, sans-serif; color: var(--green); }
.adverse .effect-symbol { color: var(--red); }
.scenario-decision { font: bold 1.15rem Arial, Helvetica, sans-serif; border: 1px solid var(--rule); padding: 18px; background: var(--bg); }
.scenario-decision.reject { color: var(--red); border-color: var(--red); }
.math-details { border: 1px solid var(--rule); padding: 18px 22px; margin: 26px 0; }
.math-details summary { cursor: pointer; color: var(--accent); }
.math-details p { font-size: .95rem; }
.math-details code, .equation code { overflow-wrap: anywhere; }
.vote-list { margin: 24px 0; }
.vote-row { padding: 16px 0; border-top: 1px solid var(--rule); }
.vote-heading { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 16px; font: .85rem Arial, Helvetica, sans-serif; }
.vote-heading small { color: var(--muted); }
.signed-track { height: 22px; position: relative; margin: 12px 0 5px; background: #e5e3db; border-radius: 2px; }
.signed-track::after { content: ''; position: absolute; left: 50%; height: 100%; border-left: 1px solid var(--ink); }
.signed-track > span { position: absolute; top: 4px; height: 14px; background: var(--green); transition: width .4s, left .4s; }
.signed-track > span.negative { background: var(--red); }
.signed-axis { display: flex; justify-content: space-between; color: var(--muted); font: .7rem Arial, Helvetica, sans-serif; }
.feedback-controls { flex-basis: 100%; display: flex; flex-wrap: wrap; gap: 10px; }
.feedback-note { font-size: .85rem !important; color: var(--muted); }
.ledger { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 24px 0; }
.ledger-record { padding: 20px; border: 1px dashed var(--rule); background: var(--bg); min-width: 0; }
.ledger-record.recorded { border: 1px solid var(--green); }
.ledger-record.current { background: #eef4f0; }
.ledger-record h4 { font: bold .95rem Arial, Helvetica, sans-serif; margin: 10px 0; }
.ledger-record p { font: .85rem Arial, Helvetica, sans-serif; margin: 0; }
.contract-name { font: .7rem Arial, Helvetica, sans-serif; color: var(--muted); }
.ballots { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 20px; }
.ballot { font: .72rem Arial, Helvetica, sans-serif; padding: 7px; border: 1px solid var(--rule); background: var(--bg); border-radius: 3px; }
.ballot.support { border-color: var(--green); color: var(--green); }
.ballot.oppose { border-color: var(--red); color: var(--red); }
.peer-groups { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin: 22px 0; }
.peer-group { padding: 16px; border: 1px solid var(--rule); background: var(--bg); min-width: 0; }
.peer-group h4 { font: bold .95rem Arial, Helvetica, sans-serif; margin: 0 0 10px; }
.peer-group p { font-size: .8rem; margin: 0; }
.peer-group.selected { border-color: var(--blue); background: #edf2f5; }
.peer-group.excluded { border-style: dashed; background: transparent; }
.peer-group.excluded h4 { text-decoration: line-through; }
.cohort-plot { padding: 20px; background: var(--bg); border: 1px solid var(--rule); margin: 20px 0; }
.cohort-plot.pending-plot .cohort-range { visibility: hidden; }
.cohort-track { position: relative; height: 36px; margin: 12px 5px 20px; border-bottom: 1px solid var(--rule); background: linear-gradient(90deg, transparent 33.2%, #e5e3db 33.3%, transparent 33.5%, transparent 66.5%, #e5e3db 66.6%, transparent 66.8%); }
.cohort-target { position: absolute; left: 80%; height: 100%; border-left: 2px dashed var(--gold); }
.cohort-range > span { position: absolute; height: 8px; top: 13px; background: #bed3df; transition: left .4s, width .4s; }
.cohort-range > i { position: absolute; width: 10px; height: 10px; top: 12px; background: var(--blue); border-radius: 50%; transform: translateX(-50%); transition: left .4s; }
.cohort-scale { display: flex; justify-content: space-between; font: .74rem Arial, Helvetica, sans-serif; color: var(--muted); margin: 0 5px; }
.counter-chart { display: block; width: 100%; height: auto; background: var(--bg); border: 1px solid var(--rule); }
.counter-chart .grid { stroke: var(--rule); stroke-width: 1; }
.counter-chart text { fill: var(--muted); font: 13px Arial, Helvetica, sans-serif; }
.counter-chart polyline { fill: none; stroke-width: 2.8; stroke-linejoin: round; stroke-linecap: round; }
.counter-chart .target-trace { stroke: var(--blue); }
.counter-chart .peer-trace { stroke: var(--gold); stroke-dasharray: 7 5; }
.counter-chart [data-points="target"] { fill: var(--blue); }
.counter-chart [data-points="peer"] { fill: var(--gold); }
.trace-key { display: inline-block; width: 24px; border-top: 3px solid var(--blue); margin-right: 6px; vertical-align: middle; }
.trace-key.peer { border-color: var(--gold); border-top-style: dashed; }
.correlation-table { width: 100%; border-collapse: collapse; font: .85rem Arial, Helvetica, sans-serif; margin: 20px 0; }
.correlation-table th, .correlation-table td { padding: 12px; border: 1px solid var(--rule); text-align: center; }
.correlation-table th { font-weight: normal; }
.correlation-table td { font-weight: bold; color: var(--green); background: #eef4f0; font-variant-numeric: tabular-nums; }
.correlation-table td.inverse { color: var(--red); background: #f6ece8; }
.correlation-table .active-correlation { outline: 2px solid var(--accent); outline-offset: -3px; }
@media (max-width: 580px) {
  .comparison { grid-template-columns: 1fr; }
  .comparison-card { padding: 16px; }
  .bit-strip { min-height: 36px; }
  .readout { grid-template-columns: 1fr; gap: 12px; }
  .readout dd { font-size: 1.4rem; }
  .readout dt { font-size: .76rem; }
  .branches { gap: 10px; }
  .branch { padding: 12px 7px; }
  .branch .incoming { font-size: 1.35rem; }
  .branch > strong { font-size: .79rem; }
  .leaves { gap: 4px; }
  .signal { font-size: .68rem; padding: 4px; }
  .context-cards { grid-template-columns: 1fr; }
  .context-card { padding: 14px; }
  .context-card h4 { display: inline; margin-left: 10px; }
  .context-card .effect { display: block; margin-top: 8px; }
  .experiment-status { min-height: 8em; }
  .ledger, .peer-groups { grid-template-columns: 1fr; }
  .ledger-record, .peer-group { padding: 14px; }
  .cohort-plot { padding: 14px 10px; }
  .correlation-table th, .correlation-table td { padding: 10px 6px; }
}
@media (prefers-reduced-motion: reduce) {
  .explainer *, .explainer *::before, .explainer *::after { transition: none !important; animation: none !important; }
}
@media print {
  .explainer { break-inside: avoid; padding: 18px; }
  .experiment-controls, .round-progress { display: none !important; }
  .context-card.future { opacity: 1; }
  .comparison { grid-template-columns: 1fr 1fr; }
}