.trapezium-rule-builder{display:grid;gap:1rem;color:#172033}.trapezium-rule-builder__controls{display:grid;grid-template-columns:minmax(180px,1fr) minmax(260px,2fr);gap:.75rem 1rem;align-items:end;background:#fff;border:1px solid #d7dce5;border-radius:14px;padding:1rem}.trapezium-rule-builder__controls label{display:grid;gap:.35rem;font-weight:700}.trapezium-rule-builder__controls select,.trapezium-rule-builder__controls input{width:100%}.trapezium-rule-builder__presets{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:.5rem}.trapezium-rule-builder__presets button{border:1px solid #cbd3df;background:#f7f9fc;border-radius:999px;padding:.55rem .8rem;font:inherit}.trapezium-rule-builder__presets button[aria-pressed="true"]{outline:2px solid currentColor;font-weight:800}.trapezium-rule-builder__grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(320px,.9fr);gap:1rem}.trapezium-rule-builder__card{background:#fff;border:1px solid #d7dce5;border-radius:14px;padding:1rem;min-width:0}.trapezium-rule-builder__card h2,.trapezium-rule-builder__long-way h3{margin:.1rem 0 .75rem}.trapezium-rule-builder .diagram-primitives__tone--trapezium{color:#3567a8}.trapezium-rule-builder .diagram-primitives__tone--repeated{color:#8b4f9e}.trapezium-rule-builder .diagram-primitives__tone--bound{color:#596579}.trapezium-rule-builder__chord{stroke-width:2.5}.trapezium-rule-builder__ordinate{stroke-width:2}.trapezium-rule-builder__recap,.trapezium-rule-builder__formula,.trapezium-rule-builder__bound{border-radius:12px;padding:.8rem;background:#f7f9fc}.trapezium-rule-builder__metric-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.6rem;margin:.8rem 0}.trapezium-rule-builder__metric-row>div{display:grid;gap:.2rem;border:1px solid #e0e5ed;border-radius:10px;padding:.65rem}.trapezium-rule-builder__metric-row span{font-size:.82rem;color:#5d6878}.trapezium-rule-builder__term{display:flex;justify-content:space-between;gap:1rem;padding:.45rem 0;border-bottom:1px solid #e5e9f0}.trapezium-rule-builder__term span{font-weight:800}.trapezium-rule-builder__formula{display:grid;gap:.5rem;margin-top:.8rem}.trapezium-rule-builder__formula code{display:block;overflow-wrap:anywhere}.trapezium-rule-builder__bound{display:grid;gap:.25rem;margin-top:.8rem;border-left:4px solid currentColor}.trapezium-rule-builder__bound strong{text-transform:capitalize}.trapezium-rule-builder__prompt{font-weight:700}.trapezium-rule-builder__bound--mixed,.trapezium-rule-builder__bound--unknown{color:#6c4c1e;background:#fff8e8}
@media(max-width:980px){.trapezium-rule-builder__grid{grid-template-columns:1fr}.trapezium-rule-builder__controls{grid-template-columns:1fr 1fr}}
@media(max-width:720px){.trapezium-rule-builder__controls{grid-template-columns:1fr}.trapezium-rule-builder__presets{grid-column:auto}.trapezium-rule-builder__metric-row{grid-template-columns:1fr}.trapezium-rule-builder__presets button{min-height:44px}}