/* /probability-tree-diagram-maker/ page styles. Built from /assets/polyatic.css tokens only (no new colours or fonts). */
.nojs{margin:1.25rem 0 0;padding:0.875rem 1rem;border:1px solid var(--line);border-left:0.25rem solid var(--accent);border-radius:0.625rem;background:var(--surface);color:var(--ink);font-size:0.9375rem;line-height:1.6}

.pt-head .sub{margin-bottom:0.75rem;max-width:62ch}
@media(max-width:519px){.pt-head h1{margin-bottom:0.125rem}.pt-head .sub{font-size:0.9375rem;line-height:1.4;margin-bottom:0.5rem}}

/* phone: tree, then its controls (inside the first screen), then the paths and event;
   desktop: tree and paths on the left, controls beside them */
.pt-grid{display:grid;gap:0.75rem;grid-template-columns:minmax(0,1fr)}
@media(min-width:960px){
  .pt-grid{grid-template-columns:minmax(0,1.6fr) minmax(20rem,1fr);grid-template-rows:auto 1fr;gap:1rem;align-items:start}
  .pt-treecard{grid-column:1;grid-row:1}
  .pt-rescard{grid-column:1;grid-row:2}
  .pt-controls{grid-column:2;grid-row:1 / span 2}
}
.pt-rescard>.pt-event:first-child{margin-top:0}
.pt-card{padding:0.75rem;min-width:0}
@media(min-width:520px){.pt-card{padding:1.125rem}}

.pt-draw{background:var(--surface-2);border:1px solid var(--line);border-radius:0.5rem;overflow-x:auto;overflow-y:hidden}
.pt-draw:empty{display:none}
.pt-draw svg{display:block;max-width:none;height:auto}
.pt-svg .pt-br{stroke:var(--muted)}
.pt-svg .pt-br.on{stroke:var(--accent)}
.pt-svg .pt-lab,.pt-svg .pt-end,.pt-svg .pt-dot{fill:var(--ink)}
.pt-svg .pt-lab.on,.pt-svg .pt-end.on{fill:var(--accent)}
.pt-svg .pt-p{fill:var(--ink-2);stroke:var(--surface-2)}
.pt-svg .pt-dec{fill:var(--muted)}
.pt-svg .pt-flag{fill:var(--bad)}

.pt-msg{margin:0;padding:0.75rem 0.875rem;border:1px solid var(--bad);border-left-width:0.25rem;border-radius:0.5rem;color:var(--bad);font-weight:600;font-size:0.9375rem;line-height:1.5;overflow-wrap:anywhere}
.pt-msg[hidden]{display:none}
input[aria-invalid=true]{border-color:var(--bad)}
.pt-flags:empty{display:none}
.pt-flag{margin:0.625rem 0 0;padding:0.5rem 0.75rem;border-left:0.25rem solid var(--bad);background:var(--surface-2);border-radius:0.375rem;color:var(--bad);font-weight:600;font-size:0.875rem;line-height:1.45}
.pt-hint{color:var(--muted);font-size:0.8125rem;line-height:1.5;margin:0.5rem 0 0}
.pt-hint:empty{display:none}
.pt-hint.is-bad{color:var(--bad)}

.pt-event{margin-top:0.625rem;padding:0.625rem 0.75rem;border:1px solid var(--accent);border-radius:0.5rem;background:var(--accent-soft)}
.pt-event.is-empty{border-color:var(--line);background:transparent;padding:0.375rem 0.75rem}
.pt-event.is-empty .pt-hint{margin:0}
.pt-evw{margin:0;font-family:var(--mono);font-weight:650;font-size:1rem;line-height:1.45;color:var(--ink);overflow-wrap:anywhere;font-variant-numeric:tabular-nums}

.pt-sec{font-size:0.8125rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);margin:0.875rem 0 0.375rem}
.pt-controls>.pt-sec:first-child{margin-top:0}
.pt-secnote{text-transform:none;letter-spacing:0;font-weight:500}
.pt-k{display:block;font-family:var(--mono);font-size:0.6875rem;font-weight:500;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);margin-bottom:0.25rem}

.pt-list{list-style:none;margin:0;padding:0;display:grid;gap:0.25rem;max-height:24rem;overflow-y:auto}
@media(min-width:700px){.pt-list{grid-template-columns:repeat(auto-fill,minmax(19rem,1fr))}}
.pt-list li{border:1px solid var(--line);border-radius:0.5rem;padding:0.375rem 0.625rem;min-width:0}
.pt-list li.on{border-color:var(--accent);background:var(--accent-soft)}
.pt-path{align-items:flex-start}
.pt-path input{margin-top:0.1875rem;flex:none}
.pt-pathtxt{display:flex;flex-wrap:wrap;gap:0.125rem 0.625rem;align-items:baseline;font-variant-numeric:tabular-nums}
.pt-pn{font-family:var(--mono);font-size:0.875rem}
.pt-work{font-family:var(--mono);font-size:0.8125rem;color:var(--ink-2);overflow-wrap:anywhere}
.pt-list .pt-dec{font-family:var(--mono);font-size:0.8125rem;color:var(--muted)}
.pt-total{margin:0.5rem 0 0;font-size:0.8125rem;color:var(--muted)}
.pt-total.is-bad{color:var(--bad);font-weight:600}

.pt-actions{display:flex;flex-wrap:wrap;gap:0.5rem;align-items:center;margin-top:0.75rem}
.pt-actions .chip{padding:0.4375rem 0.6875rem}
.pt-clear{margin-left:auto}
.pt-shareurl{margin-top:0.5rem;font-family:var(--mono);font-size:0.8125rem}
.pt-shareurl[hidden]{display:none}

.pt-controls .modes{margin-bottom:0.75rem}
.pt-f{display:block;min-width:0}
.pt-pair{display:grid;gap:0.625rem;grid-template-columns:minmax(0,6rem) minmax(0,1fr);align-items:end;margin-top:0.625rem}
.pt-radios{border:0;margin:0;padding:0;min-width:0;display:grid;gap:0.375rem}
.pt-radios .pt-k{padding:0}
.pt-same{align-self:center}
#bag,.pt-pin{font-family:var(--mono)}
.pt-set{border:1px solid var(--line);border-radius:0.5rem;margin:0.75rem 0 0;padding:0.5rem 0.625rem 0.625rem;min-width:0}
.pt-set legend{padding:0 0.25rem;margin:0}
.pt-sum{text-transform:none;letter-spacing:0;color:var(--ok)}
.pt-sum.is-bad{color:var(--bad);font-weight:600}
.pt-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr) 2.5rem;gap:0.375rem;margin-top:0.375rem;align-items:center}
.pt-row input{padding:0.5rem 0.625rem}
.pt-rm{justify-content:center;padding:0.375rem 0;font-size:1rem}
.pt-add{margin-top:0.5rem;font-size:0.8125rem}
.chip:disabled{opacity:.5;cursor:not-allowed}
.pt-node{margin-top:0.75rem;font-size:0.875rem}
.pt-node[hidden]{display:none}
.pt-node summary{cursor:pointer;font-weight:600;color:var(--ink)}
.pt-node .pt-f{margin-top:0.5rem}
.pt-noderow{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
.pt-nl{font-family:var(--mono);font-weight:650;overflow-wrap:anywhere}
.pt-nodesum{margin:0.375rem 0}
.pt-exh{margin-top:1rem}
.pt-ex{display:flex;flex-wrap:wrap;gap:0.375rem}
.pt-ex .chip{font-size:0.8125rem;padding:0.375rem 0.625rem}
.pt-printarea{display:none}

.explainer code{font-family:var(--mono);font-size:0.875em;background:var(--surface-2);border:1px solid var(--line);border-radius:0.25rem;padding:0 0.25rem}
.explainer .pt-cannot{color:var(--muted);font-size:0.9375rem;margin:0 0 0.75rem;padding-left:1.25rem}
.explainer .pt-cannot li{margin:0 0 0.5rem}

.chip:focus-visible,.btn:focus-visible,.modes button:focus-visible,.pt-node summary:focus-visible,.pt-card input:focus-visible,.pt-card select:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* print: the tree with its caption and the outcome list, black on white */
@media print{
  body.pt-printing .wrap,body.pt-printing .skip-link{display:none!important}
  body.pt-printing .pt-printarea{display:block!important}
  body{background:#fff!important;color:#000!important}
  .pt-printarea svg{display:block;max-width:100%;height:auto}
  .pt-printarea .pt-list{max-height:none;overflow:visible;display:block;columns:2;margin-top:0.6cm;font-size:10pt}
  .pt-printarea .pt-list li{border:0;padding:0.05cm 0;break-inside:avoid;color:#000}
  .pt-printarea .pt-list li.on{background:none;font-weight:700}
  .pt-printarea .pt-work,.pt-printarea .pt-dec{color:#000}
}