.ci-lab[data-astro-cid-uxkgfk47]{background:#fbfdfc}.ci-intro[data-astro-cid-uxkgfk47]{grid-template-columns:minmax(0,1fr) auto;align-items:start;gap:1rem;display:grid}.ci-intro[data-astro-cid-uxkgfk47] h3[data-astro-cid-uxkgfk47]{letter-spacing:-.03em;margin:0 0 .45rem;font-size:1.2rem}.ci-intro[data-astro-cid-uxkgfk47] p[data-astro-cid-uxkgfk47]{margin-bottom:0;font-size:.92rem}.ci-kicker[data-astro-cid-uxkgfk47]{letter-spacing:.1em;text-transform:uppercase;font-weight:750;color:var(--green-dark)!important;font-size:.7rem!important}.ci-score[data-astro-cid-uxkgfk47]{border:1px solid var(--line);background:var(--surface);gap:.1rem;min-width:145px;padding:.75rem .85rem;display:grid}.ci-score[data-astro-cid-uxkgfk47] span[data-astro-cid-uxkgfk47],.ci-score[data-astro-cid-uxkgfk47] small[data-astro-cid-uxkgfk47]{color:var(--muted);font-size:.7rem}.ci-score[data-astro-cid-uxkgfk47] strong[data-astro-cid-uxkgfk47]{letter-spacing:-.04em;font-size:1.55rem}.ci-prediction[data-astro-cid-uxkgfk47]{border:1px solid var(--ink);margin:1rem 0 0;padding:.9rem}.ci-prediction[data-astro-cid-uxkgfk47] legend[data-astro-cid-uxkgfk47]{color:var(--ink);letter-spacing:.08em;text-transform:uppercase;padding:0 .25rem;font-size:.75rem;font-weight:750}.ci-prediction-grid[data-astro-cid-uxkgfk47]{grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;display:grid}.ci-prediction-group[data-astro-cid-uxkgfk47]{gap:.45rem;display:grid}.ci-question-label[data-astro-cid-uxkgfk47]{color:var(--ink);font-size:.82rem;font-weight:700;line-height:1.4}.ci-prediction-group[data-astro-cid-uxkgfk47] label[data-astro-cid-uxkgfk47]{border:1px solid var(--line);color:var(--muted);cursor:pointer;align-items:flex-start;gap:.4rem;padding:.35rem .45rem;font-size:.78rem;line-height:1.35;display:flex}.ci-prediction-group[data-astro-cid-uxkgfk47] label[data-astro-cid-uxkgfk47]:has(input:checked){border-color:var(--green-dark);background:color-mix(in srgb, var(--green) 24%, var(--surface));color:var(--ink);font-weight:650}.ci-prediction[data-astro-cid-uxkgfk47] input[data-astro-cid-uxkgfk47],.ci-controls[data-astro-cid-uxkgfk47] input[data-astro-cid-uxkgfk47],.ci-controls[data-astro-cid-uxkgfk47] select[data-astro-cid-uxkgfk47]{accent-color:var(--green-dark)}.ci-reveal-row[data-astro-cid-uxkgfk47]{flex-wrap:wrap;align-items:center;gap:.7rem;margin-top:.8rem;display:flex}.ci-reveal-row[data-astro-cid-uxkgfk47] button[data-astro-cid-uxkgfk47]:disabled{cursor:not-allowed;opacity:.45}.ci-feedback[data-astro-cid-uxkgfk47]{min-height:1.2em;color:var(--muted);margin:0!important;font-size:.78rem!important}.ci-controls[data-astro-cid-uxkgfk47]{grid-template-columns:repeat(3,minmax(0,1fr));gap:.75rem;margin-top:1rem;display:grid}.ci-controls[data-astro-cid-uxkgfk47] label[data-astro-cid-uxkgfk47]{color:var(--muted);gap:.3rem;font-size:.76rem;font-weight:650;display:grid}.ci-controls[data-astro-cid-uxkgfk47] output[data-astro-cid-uxkgfk47]{color:var(--ink);font-weight:750}.ci-controls[data-astro-cid-uxkgfk47] input[data-astro-cid-uxkgfk47][type=range]{width:100%}.ci-controls[data-astro-cid-uxkgfk47] select[data-astro-cid-uxkgfk47]{border:1px solid var(--line);background:var(--surface);width:100%;min-height:2rem;color:var(--ink);padding:.25rem .35rem}.ci-mode-controls[data-astro-cid-uxkgfk47]{border-top:1px solid var(--line);flex-wrap:wrap;align-items:center;gap:.45rem;margin:.8rem 0;padding-top:.8rem;display:flex}.ci-control-label[data-astro-cid-uxkgfk47]{color:var(--muted);letter-spacing:.06em;text-transform:uppercase;font-size:.72rem;font-weight:750}.ci-workflow-label[data-astro-cid-uxkgfk47]{margin-left:.5rem}.ci-mode-button[data-astro-cid-uxkgfk47]{border:1px solid var(--line);background:var(--surface);color:var(--muted);cursor:pointer;border-radius:2px;padding:.45rem .6rem;font-size:.75rem}.ci-mode-button[data-astro-cid-uxkgfk47]:hover,.ci-mode-button[data-astro-cid-uxkgfk47]:focus-visible,.ci-mode-button[data-astro-cid-uxkgfk47].is-active{border-color:var(--green-dark);color:var(--ink);outline:2px solid color-mix(in srgb, var(--green-dark) 20%, transparent);outline-offset:1px}.ci-mode-button[data-astro-cid-uxkgfk47].is-active{background:color-mix(in srgb, var(--green) 25%, var(--surface));font-weight:700}.ci-chart-grid[data-astro-cid-uxkgfk47]{grid-template-columns:minmax(0,1.6fr) minmax(220px,.7fr);align-items:start;gap:1rem;display:grid}.ci-plot-panel[data-astro-cid-uxkgfk47]{border-top:1px solid var(--line);border-bottom:1px solid var(--line);min-width:0;overflow:auto hidden}.ci-panel-heading[data-astro-cid-uxkgfk47]{justify-content:space-between;align-items:start;gap:.6rem;padding:.75rem 0 .25rem;display:flex}.ci-panel-heading[data-astro-cid-uxkgfk47] h4[data-astro-cid-uxkgfk47]{letter-spacing:-.02em;margin:0;font-size:.98rem}.ci-panel-heading[data-astro-cid-uxkgfk47] p[data-astro-cid-uxkgfk47]{margin:0 0 .2rem}.ci-state-badge[data-astro-cid-uxkgfk47]{border:1px solid var(--green-dark);color:var(--green-dark);flex:none;padding:.25rem .4rem;font-size:.67rem;font-weight:750}.ci-plot-panel[data-astro-cid-uxkgfk47] svg[data-astro-cid-uxkgfk47]{width:100%;min-width:560px;height:auto;display:block}.ci-grid-line[data-astro-cid-uxkgfk47]{stroke:var(--line);stroke-width:1px}.ci-target-line[data-astro-cid-uxkgfk47]{stroke:var(--green-dark);stroke-width:2px;stroke-dasharray:5 3}.ci-null-line[data-astro-cid-uxkgfk47]{stroke:var(--ink);stroke-width:1.2px;stroke-dasharray:2 4}.ci-threshold-line[data-astro-cid-uxkgfk47]{stroke:var(--ink);stroke-width:1.4px;stroke-dasharray:9 3 2 3}.ci-cover-row[data-astro-cid-uxkgfk47] line[data-astro-cid-uxkgfk47]:not(.ci-cap){stroke:var(--green-dark);stroke-width:2.3px}.ci-cover-row[data-astro-cid-uxkgfk47] .ci-cap[data-astro-cid-uxkgfk47],.ci-cover-row[data-astro-cid-uxkgfk47] circle[data-astro-cid-uxkgfk47]{stroke:var(--green-dark);fill:var(--green-dark)}.ci-miss-row[data-astro-cid-uxkgfk47] line[data-astro-cid-uxkgfk47]:not(.ci-cap){stroke:var(--ink);stroke-width:1.4px;stroke-dasharray:5 3}.ci-miss-row[data-astro-cid-uxkgfk47] .ci-cap[data-astro-cid-uxkgfk47],.ci-miss-row[data-astro-cid-uxkgfk47] rect[data-astro-cid-uxkgfk47]{stroke:var(--ink);fill:var(--surface);stroke-width:1.4px}.ci-selected-row[data-astro-cid-uxkgfk47] line[data-astro-cid-uxkgfk47]:not(.ci-cap){stroke-width:3.3px}.ci-selected-row[data-astro-cid-uxkgfk47] circle[data-astro-cid-uxkgfk47],.ci-selected-row[data-astro-cid-uxkgfk47] rect[data-astro-cid-uxkgfk47]{stroke-width:2.4px}.ci-row-number[data-astro-cid-uxkgfk47],.ci-row-status[data-astro-cid-uxkgfk47],.ci-axis-tick[data-astro-cid-uxkgfk47],.ci-axis-label[data-astro-cid-uxkgfk47],.ci-row-axis-label[data-astro-cid-uxkgfk47]{fill:var(--muted);font-size:11px}.ci-row-status[data-astro-cid-uxkgfk47]{fill:var(--ink);font-size:12px;font-weight:750}.ci-axis-label[data-astro-cid-uxkgfk47]{fill:var(--ink);font-size:12px}.ci-row-axis-label[data-astro-cid-uxkgfk47]{letter-spacing:.04em;text-transform:uppercase;font-size:10px;font-weight:700}.ci-legend[data-astro-cid-uxkgfk47]{color:var(--muted);flex-wrap:wrap;gap:.55rem .9rem;padding:.1rem .5rem .75rem;font-size:.68rem;display:flex}.ci-legend-line[data-astro-cid-uxkgfk47],.ci-legend-target[data-astro-cid-uxkgfk47],.ci-legend-null[data-astro-cid-uxkgfk47]{vertical-align:-.08rem;width:1.25rem;height:.65rem;margin-right:.25rem;display:inline-block}.ci-legend-cover[data-astro-cid-uxkgfk47]{border-top:3px solid var(--green-dark)}.ci-legend-miss[data-astro-cid-uxkgfk47]{border-top:2px dashed var(--ink)}.ci-legend-target[data-astro-cid-uxkgfk47]{border-left:2px dashed var(--green-dark)}.ci-legend-null[data-astro-cid-uxkgfk47]{border-left:2px dotted var(--ink)}.ci-chart-summary[data-astro-cid-uxkgfk47]{border-left:2px solid var(--green-dark);min-height:2.5em;color:var(--muted);margin:0 0 .75rem;padding:.55rem .65rem;font-size:.78rem!important}.ci-readout-panel[data-astro-cid-uxkgfk47]{border:1px solid var(--line);background:var(--surface);padding:.85rem}.ci-readout-panel[data-astro-cid-uxkgfk47]>.ci-kicker[data-astro-cid-uxkgfk47]{margin-bottom:.55rem}.ci-readouts[data-astro-cid-uxkgfk47],.ci-mini-readouts[data-astro-cid-uxkgfk47]{gap:.5rem;margin:0;display:grid}.ci-readouts[data-astro-cid-uxkgfk47] div[data-astro-cid-uxkgfk47],.ci-mini-readouts[data-astro-cid-uxkgfk47] div[data-astro-cid-uxkgfk47]{border-bottom:1px solid var(--line);justify-content:space-between;gap:.7rem;padding-bottom:.45rem;display:flex}.ci-readouts[data-astro-cid-uxkgfk47] dt[data-astro-cid-uxkgfk47],.ci-mini-readouts[data-astro-cid-uxkgfk47] dt[data-astro-cid-uxkgfk47]{color:var(--muted);font-size:.72rem}.ci-readouts[data-astro-cid-uxkgfk47] dd[data-astro-cid-uxkgfk47],.ci-mini-readouts[data-astro-cid-uxkgfk47] dd[data-astro-cid-uxkgfk47]{color:var(--ink);text-align:right;margin:0;font-size:.78rem;font-weight:750}.ci-row-picker[data-astro-cid-uxkgfk47]{gap:.3rem;margin-top:.9rem;display:grid}.ci-row-picker[data-astro-cid-uxkgfk47] label[data-astro-cid-uxkgfk47]{color:var(--muted);font-size:.72rem;font-weight:700}.ci-row-picker[data-astro-cid-uxkgfk47] select[data-astro-cid-uxkgfk47]{border:1px solid var(--line);background:var(--surface);min-height:2rem;padding:.25rem}.ci-selected-readout[data-astro-cid-uxkgfk47]{border-top:1px solid var(--line);margin-top:.9rem;padding-top:.75rem}.ci-selected-label[data-astro-cid-uxkgfk47]{letter-spacing:.06em;text-transform:uppercase;font-weight:750;color:var(--green-dark)!important;margin-bottom:.25rem!important;font-size:.72rem!important}.ci-selected-result[data-astro-cid-uxkgfk47]{min-height:2.5em;font-weight:700;color:var(--ink)!important;margin-bottom:.7rem!important;font-size:.82rem!important}.ci-state-explanation[data-astro-cid-uxkgfk47]{border-top:1px solid var(--line);grid-template-columns:minmax(0,1fr) minmax(180px,.65fr);align-items:start;gap:1rem;margin-top:.9rem;padding:.85rem 0 0;display:grid}.ci-state-explanation[data-astro-cid-uxkgfk47] h4[data-astro-cid-uxkgfk47]{margin:0 0 .35rem;font-size:.95rem}.ci-state-explanation[data-astro-cid-uxkgfk47] p[data-astro-cid-uxkgfk47]{margin-bottom:0;font-size:.8rem!important}.ci-state-equation[data-astro-cid-uxkgfk47]{text-align:right;align-self:center;font-family:ui-serif,Georgia,serif;color:var(--ink)!important}.ci-monte-carlo[data-astro-cid-uxkgfk47]{color:var(--muted);margin:.8rem 0 0!important;font-size:.72rem!important}.ci-accessible-summary[data-astro-cid-uxkgfk47]{color:var(--muted);margin-top:.65rem;font-size:.75rem}[data-astro-cid-uxkgfk47][hidden]{display:none!important}@media (width<=760px){.ci-controls[data-astro-cid-uxkgfk47]{grid-template-columns:repeat(2,minmax(0,1fr))}.ci-chart-grid[data-astro-cid-uxkgfk47]{grid-template-columns:1fr}.ci-readout-panel[data-astro-cid-uxkgfk47]{grid-template-columns:repeat(2,minmax(0,1fr));gap:.8rem;display:grid}.ci-readout-panel[data-astro-cid-uxkgfk47]>.ci-kicker[data-astro-cid-uxkgfk47]{grid-column:1/-1;margin-bottom:-.4rem}.ci-selected-readout[data-astro-cid-uxkgfk47]{border-top:0;margin-top:0;padding-top:0}.ci-row-picker[data-astro-cid-uxkgfk47]{margin-top:0}}@media (width<=560px){.ci-intro[data-astro-cid-uxkgfk47],.ci-prediction-grid[data-astro-cid-uxkgfk47],.ci-state-explanation[data-astro-cid-uxkgfk47]{grid-template-columns:1fr}.ci-score[data-astro-cid-uxkgfk47]{grid-template-columns:auto auto;align-items:baseline;min-width:0}.ci-score[data-astro-cid-uxkgfk47] small[data-astro-cid-uxkgfk47]{grid-column:1/-1}.ci-controls[data-astro-cid-uxkgfk47]{grid-template-columns:1fr}.ci-mode-controls[data-astro-cid-uxkgfk47]{align-items:stretch}.ci-workflow-label[data-astro-cid-uxkgfk47]{width:100%;margin:.25rem 0 0}.ci-readout-panel[data-astro-cid-uxkgfk47]{display:block}.ci-row-picker[data-astro-cid-uxkgfk47]{margin-top:.9rem}.ci-selected-readout[data-astro-cid-uxkgfk47]{border-top:1px solid var(--line);margin-top:.9rem;padding-top:.75rem}.ci-state-equation[data-astro-cid-uxkgfk47]{text-align:left}}@media (prefers-reduced-motion:reduce){.ci-lab[data-astro-cid-uxkgfk47] [data-astro-cid-uxkgfk47]{scroll-behavior:auto!important;transition:none!important}}.lesson-main[data-astro-cid-jcv46yyu],.lesson-aside[data-astro-cid-jcv46yyu]{min-width:0}.math[data-astro-cid-jcv46yyu]{white-space:nowrap;color:var(--ink);font-family:ui-serif,Georgia,serif}.equation[data-astro-cid-jcv46yyu]{border-block:1px solid var(--line);text-align:center;white-space:nowrap;margin:1rem 0;padding:.9rem 1rem;font-family:ui-serif,Georgia,serif;font-size:clamp(1rem,2.2vw,1.25rem);overflow-x:auto;color:var(--ink)!important}.plain-list[data-astro-cid-jcv46yyu]{color:var(--muted);gap:.65rem;margin:1rem 0;padding-left:1.2rem;line-height:1.65;display:grid}.plain-list[data-astro-cid-jcv46yyu] strong[data-astro-cid-jcv46yyu]{color:var(--ink)}.calculation[data-astro-cid-jcv46yyu]{border-top:1px solid var(--line);border-left:1px solid var(--line);grid-template-columns:repeat(2,minmax(0,1fr));margin:1rem 0;display:grid}.calculation[data-astro-cid-jcv46yyu] p[data-astro-cid-jcv46yyu]{border-right:1px solid var(--line);border-bottom:1px solid var(--line);gap:.25rem;margin:0;padding:.85rem;display:grid}.calculation[data-astro-cid-jcv46yyu] span[data-astro-cid-jcv46yyu]{color:var(--muted);font-size:.78rem}.calculation[data-astro-cid-jcv46yyu] strong[data-astro-cid-jcv46yyu]{color:var(--ink);font-size:.92rem}.trap[data-astro-cid-jcv46yyu]{border-left:3px solid var(--green-dark);background:#fbfdfc;margin:1rem 0;padding:1rem 1.1rem}.trap[data-astro-cid-jcv46yyu] p[data-astro-cid-jcv46yyu]{margin:.6rem 0}.trap[data-astro-cid-jcv46yyu] p[data-astro-cid-jcv46yyu]:first-child{margin-top:0}.trap[data-astro-cid-jcv46yyu] p[data-astro-cid-jcv46yyu]:last-child{margin-bottom:0}.question-list[data-astro-cid-jcv46yyu]{gap:.7rem;margin:1rem 0 0;padding:0;list-style:none;display:grid}.question[data-astro-cid-jcv46yyu]{border:1px solid var(--line);padding:.9rem 1rem}.question[data-astro-cid-jcv46yyu] summary[data-astro-cid-jcv46yyu]{cursor:pointer;font-weight:650}.question[data-astro-cid-jcv46yyu] p[data-astro-cid-jcv46yyu]{margin:.7rem 0 0;font-size:.94rem}.rubric[data-astro-cid-jcv46yyu]{border-top:2px solid var(--green-dark);border-bottom:1px solid var(--line);gap:.6rem;margin:1rem 0;padding:1rem;display:grid}.rubric[data-astro-cid-jcv46yyu] p[data-astro-cid-jcv46yyu]{margin:0}.cheat-sheet[data-astro-cid-jcv46yyu]{border-top:1px solid var(--line);border-left:1px solid var(--line);grid-template-columns:repeat(2,minmax(0,1fr));gap:0;margin-top:1rem;display:grid}.cheat-sheet[data-astro-cid-jcv46yyu] p[data-astro-cid-jcv46yyu]{border-right:1px solid var(--line);border-bottom:1px solid var(--line);color:var(--muted);margin:0;padding:.8rem;line-height:1.5}.cheat-sheet[data-astro-cid-jcv46yyu] strong[data-astro-cid-jcv46yyu]{color:var(--ink)}.source-note[data-astro-cid-jcv46yyu]{font-size:.82rem}.source-note[data-astro-cid-jcv46yyu] a[data-astro-cid-jcv46yyu]{color:var(--green-dark);font-weight:650}.lesson-footer-links[data-astro-cid-jcv46yyu]{flex-wrap:wrap;justify-content:flex-end;gap:1rem;display:flex}@media (width<=650px){.calculation[data-astro-cid-jcv46yyu],.cheat-sheet[data-astro-cid-jcv46yyu]{grid-template-columns:1fr}.lesson-footer-links[data-astro-cid-jcv46yyu]{justify-content:flex-start}}