.ws{--ws-paper: #ffffff;--ws-ink: #1c1b1e;--ws-ink-soft: #49454f;--ws-rule: #dcd8d1;--ws-brand: #880e36;--ws-k: #40628c;--ws-a: #0f5c5c;--ws-t: #9a4a08;--ws-boss: #5c0a24;--ws-wash: rgba(64, 98, 140, .07);--cat: var(--ws-k);--fig-scale: 1.15}.ws [data-cat=K],.ws[data-cat=K]{--cat: var(--ws-k)}.ws [data-cat=A]{--cat: var(--ws-a)}.ws [data-cat=T]{--cat: var(--ws-t)}.ws [data-cat=BOSS]{--cat: var(--ws-boss)}.ws-page{padding-top:calc(72px + var(--spacing-6));padding-bottom:var(--spacing-16)}.ws-container{max-width:1080px;margin:0 auto;padding:0 var(--spacing-4)}@media(min-width:768px){.ws-container{padding:0 var(--spacing-8)}}.ws-crumbs{display:flex;flex-wrap:wrap;gap:var(--spacing-2);font-size:var(--font-size-sm);color:var(--color-ink-soft);margin-bottom:var(--spacing-4)}.ws-toolbar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:var(--spacing-3) var(--spacing-6);margin-bottom:var(--spacing-6)}.ws-actions,.ws-actions-group,.ws-layout{display:flex;flex-wrap:wrap;align-items:center;gap:var(--spacing-2)}.ws-actions{gap:var(--spacing-3) var(--spacing-6)}.ws-layout-label{font-size:var(--font-size-sm);color:var(--color-ink-soft);margin-right:var(--spacing-1)}.ws-btn,.ws-seg{display:inline-flex;align-items:center;justify-content:center;gap:.4em;min-height:44px;padding:.5rem .95rem;border:1px solid var(--color-outline-variant);border-radius:var(--radius-md);background:transparent;color:var(--color-primary);font-family:var(--font-family);font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);line-height:1.2;text-decoration:none;cursor:pointer;transition:background var(--transition-fast),border-color var(--transition-fast),color var(--transition-fast)}.ws-btn:hover,.ws-seg:hover{border-color:var(--color-primary);background:var(--color-accent-subtle-bg);color:var(--color-primary)}.ws-btn--primary{background:var(--color-primary);border-color:var(--color-primary);color:var(--color-on-primary)}.ws-btn--primary:hover{background:var(--color-primary-dark);border-color:var(--color-primary-dark);color:var(--color-on-primary)}.ws-seg{color:var(--color-ink-soft);font-weight:var(--font-weight-medium)}.ws-seg[aria-pressed=true]{color:var(--color-primary);border-color:var(--color-primary);box-shadow:inset 0 0 0 1px var(--color-primary);background:var(--color-accent-subtle-bg);font-weight:var(--font-weight-bold)}.ws-after{display:grid;gap:var(--spacing-12);margin-top:var(--spacing-12)}.ws-after h2{font-size:var(--font-size-2xl);margin-bottom:var(--spacing-4)}.ws-after h3{font-size:var(--font-size-lg);margin:var(--spacing-6) 0 var(--spacing-2)}.ws-more-list{list-style:none;padding:0;margin:0 0 var(--spacing-4);border-top:2px solid var(--color-ink)}.ws-more-list li{border-bottom:1px solid var(--color-outline-variant)}.ws-more-list a{display:block;padding:var(--spacing-3) 0;min-height:44px;font-weight:var(--font-weight-semibold)}.ws-more-course{font-family:var(--font-family-mono);color:var(--color-primary);margin-right:var(--spacing-2)}.ws-more-empty{color:var(--color-ink-soft)}.ws-about{border-top:2px solid var(--color-ink);padding-top:var(--spacing-4);max-width:var(--max-width-text)}.ws-about p{color:var(--color-ink-soft)}.ws-about a{font-weight:var(--font-weight-semibold)}.ws-licence{font-size:var(--font-size-sm);color:var(--color-ink-soft);margin:0}.ws{background:var(--ws-paper);color:var(--ws-ink);border:1px solid var(--ws-rule);border-radius:var(--radius-lg);padding:var(--spacing-6) var(--spacing-4);font-size:1rem;line-height:1.55;color-scheme:light}@media(min-width:768px){.ws{padding:var(--spacing-12) clamp(2rem,5vw,3.5rem)}}:root[data-theme=dark] .ws{border-color:transparent}.ws h1,.ws h2,.ws h3{color:var(--ws-ink);text-wrap:balance}.ws a{color:var(--ws-brand)}.ws p{margin:0}.ws-b{font-weight:var(--font-weight-bold)}.ws-i{font-style:italic}.ws-bi{font-weight:var(--font-weight-bold);font-style:italic}.ws .katex{font-size:1.08em}.ws .katex-display{margin:.4em 0;overflow-x:auto;overflow-y:hidden}.ws .math-nowrap{white-space:nowrap}.ws-head{display:grid;gap:var(--spacing-4);padding-bottom:var(--spacing-5);border-bottom:2px solid var(--ws-ink)}.ws-kicker{font-size:.8125rem;font-weight:var(--font-weight-semibold);letter-spacing:.06em;text-transform:uppercase;color:var(--ws-ink-soft)}.ws-brand{color:var(--ws-brand);font-weight:var(--font-weight-bold)}.ws-code{font-family:var(--font-family-mono);color:var(--ws-brand)}.ws-title{font-size:clamp(1.75rem,3.4vw,2.5rem);letter-spacing:-.025em;margin:var(--spacing-2) 0 var(--spacing-3)}.ws-intro{font-style:italic;color:var(--ws-ink-soft);margin-bottom:var(--spacing-2)!important}.ws-meta{display:flex;flex-wrap:wrap;gap:0 .5em;font-size:.9375rem}.ws-meta+.ws-meta{display:block}.ws-key{font-size:.8125rem;color:var(--ws-ink-soft);margin-top:var(--spacing-2)!important}.ws-head-side{display:none}.ws-fields{display:flex;flex-wrap:wrap;gap:.5em 1.5em;font-weight:var(--font-weight-semibold)}.ws-line{display:inline-block;width:7em;border-bottom:1.5px solid var(--ws-ink-soft);vertical-align:baseline}.ws-line--long{width:12em}.ws-quickref{margin-top:var(--spacing-6);padding:var(--spacing-3) var(--spacing-4);border-left:3px solid var(--ws-k);background:var(--ws-wash)}.ws-quickref h2{font-family:var(--font-family);font-size:.8125rem;letter-spacing:.06em;text-transform:uppercase;margin-bottom:var(--spacing-1)}.ws-quickref ul{list-style:none;padding:0;margin:0;display:grid;gap:.25em 2em}@media(min-width:860px){.ws-quickref ul{grid-template-columns:1fr 1fr}}.ws-work-note{margin-top:var(--spacing-4)!important;font-size:.9375rem;color:var(--ws-ink-soft)}.ws-work-note--workbook,.print-workbook .ws-work-note--compact{display:none}.print-workbook .ws-work-note--workbook{display:inline}.ws-section{margin-top:var(--spacing-12)}.ws-section-head{border-top:2px solid var(--cat);padding-top:var(--spacing-3)}.ws-section-head h2{font-size:clamp(1.35rem,2.4vw,1.6rem);color:var(--cat)}.ws-cat{font-family:var(--font-family);font-size:.7em;font-weight:var(--font-weight-semibold);margin-left:.35em}.ws-section-head p{font-size:.875rem;color:var(--ws-ink-soft);margin-top:var(--spacing-1)}.ws-grid{display:grid;grid-template-columns:minmax(0,1fr);column-gap:var(--spacing-12)}@media(min-width:900px){.ws-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.print-workbook .ws-grid{grid-template-columns:minmax(0,1fr)}}.ws-problem{padding:var(--spacing-5) 0 var(--spacing-6);border-bottom:1px solid var(--ws-rule);min-width:0}.ws-problem--full{grid-column:1 / -1}.ws-problem--boss{margin-top:var(--spacing-4);padding:var(--spacing-5) var(--spacing-5) var(--spacing-6);border:none;border-left:4px solid var(--ws-boss);background:#5c0a240b}.ws-problem-title{display:flex;align-items:baseline;gap:.6em;font-size:1.15rem;line-height:1.25;margin-bottom:var(--spacing-2)}.ws-badge{flex:none;font-family:var(--font-family-display);font-weight:800;color:var(--cat)}.ws-problem--boss .ws-badge{font-size:.8em;letter-spacing:.05em;text-transform:uppercase}.ws-stem{margin-bottom:var(--spacing-2)!important}.ws-figs{display:flex;flex-wrap:wrap;align-items:flex-end;gap:var(--spacing-3) var(--spacing-6);margin:var(--spacing-3) 0}.ws-fig{margin:0;max-width:100%}.ws-fig svg{display:block;width:calc(var(--w) * 1px * var(--fig-scale));max-width:100%;height:auto}.ws-fig--xs{--fig-scale: 1}.ws-fig figcaption{margin-top:.15em;font-size:.8125rem;font-weight:var(--font-weight-semibold);color:var(--ws-ink-soft);text-align:center}.ws-part-body .ws-fig{margin-top:var(--spacing-2)}@media(max-width:640px){.ws-figs{gap:var(--spacing-3)}.ws-fig--xs{--fig-scale: .86}.ws-toolbar .ws-layout{display:none}}.ws-table{border-collapse:collapse;font-size:.95em}.ws-table th,.ws-table td{border:1px solid var(--ws-rule);padding:.3em .9em;text-align:center}.ws-table th{background:var(--ws-wash)}.ws-parts{list-style:none;padding:0;margin:var(--spacing-2) 0 0;display:grid;gap:var(--spacing-2)}.ws-part{display:grid;grid-template-columns:1.7em minmax(0,1fr)}.ws-part-label{font-weight:var(--font-weight-bold);color:var(--cat)}.ws-hint{margin-top:var(--spacing-3)}.ws-hint summary{display:inline-flex;align-items:center;gap:.4em;min-height:44px;list-style:none;cursor:pointer;font-size:.875rem;font-weight:var(--font-weight-semibold);color:var(--ws-ink-soft)}.ws-hint summary::-webkit-details-marker{display:none}.ws-hint summary:before{content:"▸";transition:transform var(--transition-fast)}.ws-hint[open] summary:before{transform:rotate(90deg)}.ws-hint summary:hover{color:var(--ws-ink)}.ws-hint p{border-left:2px solid var(--cat);padding-left:var(--spacing-3);color:var(--ws-ink-soft)}.ws-video{display:inline-flex;align-items:center;min-height:44px;font-size:.875rem;font-weight:var(--font-weight-semibold)}.ws-workspace{display:none}.print-workbook .ws-workspace{display:block;margin-top:var(--spacing-3);border:1px solid var(--ws-rule);border-radius:var(--radius-sm);background-image:radial-gradient(#9aa6b5 1px,transparent 1.2px);background-size:16px 16px;background-position:8px 8px}.print-workbook .ws-workspace[data-size=sm]{height:7rem}.print-workbook .ws-workspace[data-size=md]{height:11rem}.print-workbook .ws-workspace[data-size=lg]{height:16rem}.print-workbook .ws-workspace[data-size=xl]{height:21rem}.ws-answers{margin-top:var(--spacing-12);border-top:2px solid var(--ws-ink);padding-top:var(--spacing-4)}.ws-answers-head{display:flex;flex-wrap:wrap;align-items:center;gap:var(--spacing-2) var(--spacing-4);margin-bottom:var(--spacing-4)}.ws-answers-head h2{font-size:clamp(1.35rem,2.4vw,1.6rem)}.ws-answers-note{color:var(--ws-ink-soft);font-size:.9375rem;flex:1 1 14rem}.ws .ws-btn{color:var(--ws-brand);border-color:var(--ws-rule)}.ws .ws-btn:hover{border-color:var(--ws-brand);background:#880e3614}.ws-answers-body{filter:blur(6px);user-select:none;transition:filter var(--transition-normal)}.ws-answers.is-revealed .ws-answers-body{filter:none;user-select:text}.ws-answers-section+.ws-answers-section{margin-top:var(--spacing-4)}.ws-answers-section h3{font-family:var(--font-family);font-size:.8125rem;letter-spacing:.06em;text-transform:uppercase;color:var(--cat);margin-bottom:var(--spacing-1)}.ws-answer{display:grid;grid-template-columns:3.5em minmax(0,1fr);gap:var(--spacing-2);padding:var(--spacing-2) 0;border-top:1px solid var(--ws-rule)}.ws-answer-id{font-family:var(--font-family-display);font-weight:800;color:var(--cat)}.ws-answer ul{list-style:none;padding:0;margin:0;display:grid;gap:.15em}.ws-end{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:var(--spacing-4);margin-top:var(--spacing-8);padding-top:var(--spacing-3);border-top:1px solid var(--ws-rule);font-size:.8125rem;color:var(--ws-ink-soft)}.ws-end-brand{font-weight:var(--font-weight-semibold);color:var(--ws-ink)}.ws-qr{display:none}.ws-qr-text{display:flex;flex-direction:column;line-height:1.25}.ws-qr-url{font-family:var(--font-family-mono);font-weight:500;color:var(--ws-ink)}.ws-qr-caption{color:var(--ws-ink-soft)}.ws-fig-svg{overflow:visible}.ws-fig-svg text{font-family:var(--font-family);font-weight:600;fill:var(--ws-ink-soft)}.ws-fig-svg .plot-lbl-em,.ws-fig-svg .plot-lbl-dark{fill:var(--ws-ink);font-weight:700}.ws-fig-svg .plot-lbl-k{fill:var(--ws-k)}.ws-fig-svg .plot-lbl-a{fill:var(--ws-a)}.ws-fig-svg .plot-lbl-t{fill:var(--ws-t)}.ws-fig-svg .plot-lbl-tick{font-weight:500}.plot-grid{stroke:#e2e5ea;stroke-width:.8}.plot-axis{stroke:#8d93a0;stroke-width:1.2}.plot-tick{stroke:#8d93a0;stroke-width:1}.plot-ref{stroke:#9aa6b5;stroke-width:1.2;stroke-dasharray:4 3}.plot-curve{fill:none;stroke-width:2.25;stroke-linecap:round;stroke-linejoin:round}.plot-curve-k{stroke:var(--ws-k)}.plot-curve-a{stroke:var(--ws-a)}.plot-curve-t{stroke:var(--ws-t)}.plot-curve-alt{stroke:#49454f}.plot-curve-ghost{stroke:#8d93a0;stroke-width:1.6;stroke-dasharray:4 3}.plot-arrow-axis{fill:#8d93a0}.plot-arrow-k,.plot-pt-k{fill:var(--ws-k)}.plot-arrow-a,.plot-pt-a{fill:var(--ws-a)}.plot-arrow-t,.plot-pt-t{fill:var(--ws-t)}.plot-arrow-alt,.plot-pt-alt{fill:#49454f}.plot-arrow-dark,.plot-pt-dark{fill:var(--ws-ink)}[class*=plot-pt-open]{fill:#fff;stroke:var(--ws-ink);stroke-width:1.6}.fig-river{fill:var(--ws-wash)}.fig-bank{fill:none;stroke:#6f7d90;stroke-width:1.6}.fig-fence{fill:none;stroke:var(--ws-ink);stroke-width:2.4;stroke-linejoin:round}.fig-divider{stroke:var(--ws-ink-soft);stroke-width:1.8}.fig-dim{stroke:var(--ws-ink);stroke-width:1}.fig-oval{fill:none;stroke:#8d93a0;stroke-width:1.3}.fig-map-arrow{stroke:var(--ws-ink);stroke-width:1.2}@media print{html,body,.ws-body{background:#fff!important;color:#1c1b1e!important}.no-print,.ws-hint,.ws-video,.ws-answers-toggle{display:none!important}*{-webkit-print-color-adjust:exact;print-color-adjust:exact}.ws-page{padding:0}.ws-container{max-width:none;padding:0}.ws{--fig-scale: .92;border:none;border-radius:0;padding:0;font-size:10pt;line-height:1.36}.ws-head{grid-template-columns:minmax(0,1fr) auto;align-items:start;gap:.2in;padding-bottom:6pt;border-bottom-width:1.5pt}.ws-head-side{display:flex;flex-direction:column;align-items:flex-end;gap:8pt}.ws-kicker{font-size:7.5pt}.ws-title{font-size:17pt;margin:2pt 0 3pt}.ws-intro{font-size:9pt;margin-bottom:1pt!important}.ws-meta{font-size:8.5pt}.ws-key{font-size:7.5pt;margin-top:2pt!important}.ws-fields{font-size:9pt;flex-direction:column;align-items:flex-end;gap:6pt}.ws-qr{display:flex;align-items:center;gap:6pt}.ws-qr-code{width:22mm;height:22mm}.ws-qr-url{font-size:8.5pt}.ws-qr-caption{font-size:7pt;max-width:9em}.ws-quickref{margin-top:6pt;padding:3pt 7pt;background:none;border-left-width:2.5pt;font-size:8.5pt;break-inside:avoid}.ws-quickref h2{font-size:7.5pt;margin-bottom:1pt}.ws-quickref ul{grid-template-columns:1fr 1fr;gap:1pt .25in}.ws-work-note{font-size:8.5pt;margin-top:4pt!important}.ws-section{margin-top:9pt}.ws-section-head{padding-top:3pt;border-top-width:1.5pt;break-after:avoid}.ws-section-head h2{font-size:12pt}.ws-section-head p{font-size:8pt;margin-top:0}.ws-grid{column-gap:.28in}.ws-problem{padding:5pt 0 6pt}.ws-problem-head{break-inside:avoid}.ws-problem-title{font-size:10.5pt;margin-bottom:2pt}.ws-stem{margin-bottom:2pt!important}.ws-part{break-inside:avoid}.ws-parts{gap:2pt;margin-top:2pt}.ws-figs{gap:4pt 12pt;margin:4pt 0}.ws-fig{break-inside:avoid}.ws-fig--xs{--fig-scale: .74}.ws-fig figcaption{font-size:7.5pt}.ws-table{font-size:9pt}.ws-problem--boss{background:none;padding:5pt 0 6pt 8pt;border-left-width:2.5pt}.plot-grid{stroke:#c8c5cc;stroke-width:.6}.plot-axis,.plot-tick{stroke:#49454f}.plot-ref{stroke:#6f6a75}.plot-curve-k,.plot-curve-a,.plot-curve-t,.plot-curve-alt{stroke:#1c1b1e;stroke-width:2.1}.plot-curve-ghost{stroke:#49454f}.plot-arrow-axis{fill:#49454f}.plot-arrow-k,.plot-arrow-a,.plot-arrow-t,.plot-arrow-alt,.plot-pt-k,.plot-pt-a,.plot-pt-t,.plot-pt-alt{fill:#1c1b1e}.ws-fig-svg text,.ws-fig-svg .plot-lbl-k,.ws-fig-svg .plot-lbl-a,.ws-fig-svg .plot-lbl-t{fill:#1c1b1e}.fig-river{fill:#f1f1f1}.ws-end{margin-top:10pt;padding-top:5pt;font-size:8pt;break-inside:avoid}.print-compact .ws-sections{columns:2;column-gap:.3in;column-rule:.5pt solid #e4e1dc}.print-compact .ws-grid{display:block}.print-compact .ws-section:first-child{margin-top:2pt}.print-compact .ws-section-head,.print-compact .ws-problem--boss{break-inside:avoid}.print-compact .ws-fig--xs{--fig-scale: .64}.print-compact .ws-figs{gap:4pt 8pt}.print-compact .ws-answers,.print-workbook .ws-answers{display:none}.print-workbook .ws-grid{grid-template-columns:minmax(0,1fr)}.print-workbook .ws-problem{padding-bottom:10pt}.print-workbook .ws-workspace{margin-top:5pt;border-color:#b9b4ad;border-radius:0;background-image:radial-gradient(#8d93a0 .8pt,transparent .9pt);background-size:5mm 5mm;background-position:2.5mm 2.5mm;break-inside:avoid}.print-workbook .ws-workspace[data-size=sm]{height:1.1in}.print-workbook .ws-workspace[data-size=md]{height:1.7in}.print-workbook .ws-workspace[data-size=lg]{height:2.4in}.print-workbook .ws-workspace[data-size=xl]{height:3.1in}.print-answers .ws-intro,.print-answers .ws-meta,.print-answers .ws-key,.print-answers .ws-fields,.print-answers .ws-qr--head,.print-answers .ws-quickref,.print-answers .ws-work-note,.print-answers .ws-section,.print-answers .ws-head-side{display:none}.print-answers .ws{page:answers}.print-answers .ws-answers{margin-top:8pt;padding-top:0;border-top:none}.print-answers .ws-answers-head{margin-bottom:4pt}.print-answers .ws-answers-head h2{font-size:13pt}.print-answers .ws-answers-note{font-size:8.5pt}.print-answers .ws-answers-body{filter:none;font-size:9.5pt}.print-answers .ws-answers-section h3{font-size:8pt;break-after:avoid}.print-answers .ws-answer{padding:3pt 0;break-inside:avoid}.print-answers .ws-answers-section h3,.print-answers .ws-answer-id,.print-answers .ws-part-label{color:#1c1b1e}}.ws-end--flow{display:none}@media print{.print-compact .ws-end--page,.print-workbook .ws-end--page{display:none}.print-compact .ws-end--flow,.print-workbook .ws-end--flow{display:flex;flex-direction:row;flex-wrap:nowrap;align-items:center;gap:8pt;margin-top:6pt;padding-top:5pt;break-inside:avoid}.ws-end--flow .ws-qr-code{width:20mm;height:20mm}.ws-end--flow .ws-end-licence{flex:1 1 0;font-size:7pt;line-height:1.3}}html.ws-og,html.ws-og body{background:#fff!important}html.ws-og .no-print{display:none!important}html.ws-og .ws-page{padding:0}html.ws-og .ws-container{max-width:none;padding:0}html.ws-og .ws{border:none;border-radius:0;padding:44px 64px;min-height:630px;border-top:10px solid #880e36}.cs-paper{--ws-paper: #ffffff;--ws-ink: #1c1b1e;--ws-ink-soft: #49454f;--ws-rule: #dcd8d1;--ws-brand: #880e36;--ws-k: #40628c;--ws-a: #0f5c5c;--ws-t: #9a4a08;--ws-wash: rgba(64, 98, 140, .07);--fig-scale: 1;--cs-trap-bg: #fbeef2;--cs-ex-bg: #fbf5e6;--cs-ex-ink: #6e4a00;--cs-tip-bg: #edf5f0;--cs-tip-ink: #0b5d3b;color:var(--ws-ink);background:var(--ws-paper)}.cs-card{break-inside:avoid;border:1px solid var(--ws-rule);border-radius:7px;padding:.55em .7em .6em;background:#fff}.cs-card-title{display:flex;align-items:baseline;gap:.45em;margin:0 0 .3em;font-family:var(--font-family-display);font-size:1.22em;font-weight:650;line-height:1.15;letter-spacing:0;color:var(--ws-ink)}.cs-n{flex:none;font-family:var(--font-family);font-size:.72em;font-weight:700;color:var(--ws-brand);border:1px solid currentColor;border-radius:4px;padding:0 .35em;line-height:1.35}.cs-check{margin-left:auto;display:flex;gap:.3em;font-family:var(--font-family);font-size:.72em;font-weight:700;color:var(--ws-ink-soft)}.cs-check span{width:1.25em;height:1.25em;border:1px solid var(--ws-ink-soft);border-radius:3px;display:grid;place-items:center}.cs-fx{margin:.3em 0;text-align:center}.cs-fx .katex{font-size:1.08em}.cs-section .math-nowrap,.cs-doc .math-nowrap{white-space:nowrap}.cs-when{margin:.3em 0}.cs-tag{font-weight:700;font-size:.82em;letter-spacing:.06em;text-transform:uppercase;margin-right:.35em}.cs-box{margin:.4em 0 0;padding:.3em .55em;border-radius:5px;border-left:2.5px solid}.cs-ex{background:var(--cs-ex-bg);border-color:var(--cs-ex-ink)}.cs-ex .cs-tag{color:var(--cs-ex-ink)}.cs-tip{background:var(--cs-tip-bg);border-color:var(--cs-tip-ink)}.cs-tip .cs-tag{color:var(--cs-tip-ink)}.cs-trap{background:var(--cs-trap-bg);border-color:var(--ws-brand)}.cs-trap .cs-tag{color:var(--ws-brand)}.cs-cases{width:100%;border-collapse:collapse;margin:.25em 0}.cs-cases td{padding:.12em .3em;border-bottom:1px solid var(--ws-rule);vertical-align:middle}.cs-cases tr:last-child td{border-bottom:0}.cs-cases td:last-child{text-align:right;font-weight:700;color:var(--ws-brand)}.cs-cases-intro{margin:.3em 0 0;color:var(--ws-ink-soft)}.cs-card .ws-fig{margin:.35em auto}.cs-card .ws-fig svg{margin:0 auto}.cs-card .ws-table{margin:.3em auto;font-size:1em}.cs-card .ws-table th,.cs-card .ws-table td{padding:.2em .5em}.cs-decision-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:.5em;align-items:center;border:1px solid var(--ws-rule);border-radius:6px;padding:.3em .55em;margin-top:.35em}.cs-pill{font-weight:700;color:var(--ws-brand);border:1.5px solid var(--ws-brand);border-radius:99px;padding:.05em .7em;white-space:nowrap}.cs-pill--blank{min-width:7em;min-height:1.6em;border-style:dashed;border-color:var(--ws-ink-soft)}html:has(.cs-doc--print),.cs-doc--print{background:#fff}.cs-doc--print{width:8.5in;height:11in;margin:0;padding:.38in .4in .32in;display:flex;flex-direction:column;gap:.12in;overflow:hidden;font-family:var(--font-family);font-size:8.6pt;line-height:1.22;-webkit-print-color-adjust:exact;print-color-adjust:exact}.cs-doc--print .cs-n,.cs-doc--print .cs-check,.cs-doc--print .cs-tag,.cs-doc--print .cs-open{font-size:8.6pt}.cs-doc--print .cs-tag{letter-spacing:.02em}.cs-head{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:.2in;align-items:end;padding-bottom:.08in;border-bottom:1.5pt solid var(--ws-brand)}.cs-kicker{margin:0;font-size:8.6pt;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--ws-brand)}.cs-title{margin:.04in 0 .03in;font-family:var(--font-family-display);font-size:23pt;font-weight:700;line-height:1.05;letter-spacing:0}.cs-sub{margin:0;color:var(--ws-ink-soft)}[data-format=build-your-own] .cs-title{font-size:18pt}.cs-mt{margin:.06in 0 0;padding:.04in .08in;border:1px solid var(--ws-rule);border-radius:5px;display:inline-block}.cs-mt .cs-tag{color:var(--ws-brand)}.cs-qr{display:flex;align-items:center;gap:.08in}.cs-qr svg{width:.85in;height:.85in;display:block}.cs-qr-text{text-align:right;max-width:1.2in;color:var(--ws-ink-soft)}.cs-qr-text strong{display:block;color:var(--ws-ink);font-size:9pt}.cs-flow{flex:1;min-height:0;column-count:3;column-gap:.12in;column-fill:auto}.cs-flow>*{margin-bottom:.06in}.cs-doc--print .cs-card{padding:.35em .6em .4em}.cs-doc--print .cs-card-title{margin-bottom:.2em}.cs-doc--print .ws-fig{--fig-scale: .8}.cs-doc--print .ws-fig--sm{--fig-scale: .62}.cs-doc--print .cs-fx .katex{font-size:1em}.cs-doc--print .cs-fx{margin:.2em 0}.cs-foot{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:.14in;align-items:stretch}.cs-cta{border:1.5px solid var(--ws-brand);border-radius:7px;padding:.05in .1in}.cs-cta-title{margin:0;font-family:var(--font-family-display);font-weight:700;font-size:10.5pt;color:var(--ws-brand)}.cs-cta-body{margin:0}.cs-doc--print .cs-cta-title{display:inline;font-size:9.5pt;margin-right:.4em}.cs-doc--print .cs-cta-body{display:inline}.cs-doc--print .cs-legal,.cs-doc--print .cs-cta{padding:.03in .1in}.cs-doc--print .cs-foot{align-items:center}.cs-cta-url{font-weight:700}.cs-legal{display:flex;flex-direction:column;justify-content:center;gap:.03in;color:var(--ws-ink-soft);border:1px dashed var(--ws-rule);border-radius:7px;padding:.06in .1in}.cs-tools{display:grid;grid-template-columns:auto repeat(3,minmax(0,1fr));gap:.07in;align-items:stretch}.cs-tools-title{margin:0;align-self:center;font-family:var(--font-family-display);font-weight:700;font-size:10.5pt}.cs-tools .cs-decision-row{margin:0;padding:.2em .45em}.cs-legal-line{margin:0;text-align:center;color:var(--ws-ink-soft)}.cs-mytraps{border:1px solid var(--ws-rule);border-radius:7px;padding:.05in .08in .06in}.cs-mytraps-title{margin:0}.cs-mytraps-title strong{font-family:var(--font-family-display);font-size:10.5pt;margin-right:.3em}.cs-mytraps-lines{list-style:none;margin:.03in 0 0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.15in}.cs-mytraps-lines li{display:flex;align-items:flex-end;gap:.3em}.cs-mytraps-lines .cs-space{flex:1}.cs-head .cs-fields .cs-qr{margin-top:.02in;justify-content:flex-end}.cs-head .cs-fields .cs-qr svg{width:.7in;height:.7in}.cs-steps{display:flex;gap:.08in;margin-top:.06in}.cs-steps li{flex:1;list-style:none;border:1px solid var(--ws-rule);border-radius:5px;padding:.03in .07in}.cs-steps{padding:0;margin-bottom:0}.cs-steps b{color:var(--ws-brand);margin-right:.3em}.cs-fields{display:flex;flex-direction:column;gap:.12in;width:2in;color:var(--ws-ink-soft)}.cs-fields span{border-bottom:1px solid var(--ws-ink-soft);padding-bottom:2px}.cs-prompts{list-style:none;padding:0;margin:.2em 0 0}.cs-prompts li{margin:.35em 0 0}.cs-pnum{font-weight:700;color:var(--ws-brand);margin-right:.3em}.cs-open{font-size:.86em;font-style:italic;color:var(--ws-ink-soft)}.cs-space{display:block}.cs-space--line{border-bottom:1px solid #9c968e;height:1.6em}.cs-space--lines{height:3.4em;background:repeating-linear-gradient(to bottom,transparent 0,transparent calc(1.7em - 1px),#9c968e calc(1.7em - 1px),#9c968e 1.7em)}.cs-space--box_sm,.cs-space--box_md,.cs-space--box_lg{border:1.2px dashed #9c968e;border-radius:5px;margin-top:.2em}.cs-space--box_sm{height:.45in}.cs-space--box_md{height:.75in}.cs-space--box_lg{height:1.1in}.cs-strip{transform:rotate(180deg);border-top:1px dashed var(--ws-ink-soft);border-bottom:1px dashed var(--ws-ink-soft);padding:.05in 0}.cs-strip-title{margin:0 0 .03in;font-weight:700}.cs-strip-title span{font-weight:400;color:var(--ws-ink-soft)}.cs-strip ol{margin:0;padding:0;list-style:none;column-count:3;column-gap:.15in}.cs-strip li{break-inside:avoid;margin-bottom:.02in}.cs-strip li b{color:var(--ws-brand);margin-right:.3em}.cs-doc--phone{--pc-bg: #0f0e11;--pc-panel: #1a191e;--pc-line: #2e2d33;--pc-ink: #f0eff1;--pc-soft: #b5b3bc;--pc-rose: #ff8fa6;--pc-gold: #e2b33c;width:1080px;height:1920px;margin:0;overflow:hidden;position:relative;background:radial-gradient(900px 640px at 100% 0%,rgba(255,143,166,.16),transparent 60%),radial-gradient(700px 520px at 0% 100%,rgba(226,179,60,.1),transparent 60%),var(--pc-bg);color:var(--pc-ink);font-family:var(--font-family);font-size:30px;line-height:1.3}.pc-top{position:absolute;left:64px;right:64px;top:64px;display:flex;justify-content:space-between;align-items:center}.pc-brand{display:flex;align-items:center;gap:16px;font-family:var(--font-family-display);font-weight:700;font-size:32px;letter-spacing:.12em}.pc-mark{width:56px;height:56px;border-radius:14px;background:var(--pc-rose);color:var(--pc-bg);display:grid;place-items:center;letter-spacing:0;font-size:34px}.pc-course{font-weight:700;font-size:26px;color:var(--pc-soft);border:2px solid var(--pc-line);border-radius:99px;padding:8px 22px}.pc-body{position:absolute;left:64px;right:64px;top:200px;height:1470px;box-sizing:border-box;padding-bottom:4px;display:flex;flex-direction:column;gap:10px}.pc-title{margin:0;font-family:var(--font-family-display);font-weight:800;font-size:68px;line-height:.98;letter-spacing:0;color:var(--pc-ink)}.pc-tagline{margin:4px 0 0;color:var(--pc-soft);font-size:30px}.pc-label{margin:0 0 8px;font-weight:700;font-size:26px;letter-spacing:.14em;text-transform:uppercase;color:var(--pc-rose)}.pc-rows{display:flex;flex-direction:column;gap:10px}.pc-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:18px;align-items:center;background:var(--pc-panel);border:2px solid var(--pc-line);border-radius:22px;padding:8px 24px;font-size:29px}.pc-pill{font-weight:700;font-size:28px;border-radius:99px;padding:6px 22px;white-space:nowrap;background:var(--pc-rose);color:var(--pc-bg)}.pc-row:nth-child(3n+2) .pc-pill{background:var(--pc-gold)}.pc-row:nth-child(3n) .pc-pill{background:var(--pc-ink)}.pc-cards{display:grid;grid-template-columns:1fr 1fr;gap:14px}.pc-card{background:var(--pc-panel);border:2px solid var(--pc-line);border-radius:22px;padding:12px 20px;min-width:0}.pc-card--wide{grid-column:1 / -1}.pc-card h3{margin:0 0 8px;font-family:var(--font-family-display);font-weight:700;font-size:32px;color:var(--pc-ink)}.pc-cases-intro{margin:0 0 6px;color:var(--pc-soft);font-size:26px}.pc-fx{text-align:center;margin:6px 0;font-size:30px}.pc-when{color:var(--pc-soft);font-size:26px;margin:4px 0 0}.pc-ex{font-size:26px;margin:6px 0 0;color:var(--pc-soft)}.pc-cases{width:100%;border-collapse:collapse;font-size:27px}.pc-cases td{padding:3px 4px;border-bottom:2px solid var(--pc-line)}.pc-cases tr:last-child td{border-bottom:0}.pc-cases td:last-child{text-align:right;font-weight:700;color:var(--pc-rose)}.pc-table{width:100%;border-collapse:collapse;font-size:28px}.pc-table th,.pc-table td{text-align:center;padding:6px 4px;border-bottom:2px solid var(--pc-line)}.pc-table th{color:var(--pc-soft);font-weight:700}.pc-table tr:first-child td{color:var(--pc-rose);font-weight:700}.pc-table tr:last-child th,.pc-table tr:last-child td{border-bottom:0}.pc-fig{background:#fff;border-radius:16px;padding:10px;color:#1c1b1e}.pc-fig .ws-fig svg{width:100%}.pc-traps{display:flex;flex-direction:column;gap:10px}.pc-trap{display:grid;grid-template-columns:50px minmax(0,1fr);gap:16px;align-items:center;background:#ff8fa61f;border-radius:20px;padding:8px 22px 8px 16px;font-size:26px}.pc-trap-n{width:50px;height:50px;border-radius:50%;border:2px solid var(--pc-rose);color:var(--pc-rose);display:grid;place-items:center;font-weight:700;font-size:26px}.pc-foot{margin-top:auto;display:flex;justify-content:space-between;align-items:center;gap:24px;border-top:2px solid var(--pc-line);padding-top:6px}.pc-foot-text{font-size:26px;color:var(--pc-soft);line-height:1.35}.pc-foot-text b{color:var(--pc-ink)}.pc-url{font-family:var(--font-family-display);font-weight:800;font-size:40px;color:var(--pc-rose);display:block}.pc-qr{background:#fff;border-radius:16px;padding:10px}.pc-qr svg{width:150px;height:150px;display:block}.pc-bottom{position:absolute;left:64px;right:64px;bottom:44px;text-align:center;color:var(--pc-soft);font-size:24px;opacity:.8}.cs-section{margin-top:var(--spacing-16);scroll-margin-top:96px}.cs-badge{display:inline-block;margin:0;font-size:var(--font-size-sm);font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--color-primary);background:var(--color-accent-subtle-bg);border-radius:99px;padding:.2em .8em}:root[data-theme=dark] .cs-badge{color:var(--color-secondary)}.cs-section>h2{margin:var(--spacing-3) 0 var(--spacing-2)}.cs-intro{color:var(--color-ink-soft);max-width:46rem;margin:0 0 var(--spacing-6)}.cs-formats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--spacing-4);margin-bottom:var(--spacing-6)}.cs-format{border:1px solid var(--color-outline-variant);border-radius:14px;padding:var(--spacing-4);display:flex;flex-direction:column;gap:var(--spacing-2)}.cs-format h3{margin:0;font-size:1.1rem}.cs-format p{margin:0;color:var(--color-ink-soft);font-size:var(--font-size-sm)}.cs-format .ws-actions-group{margin-top:auto;padding-top:var(--spacing-2)}.cs-web{border-radius:18px;padding:var(--spacing-6);border:1px solid var(--color-outline-variant);font-size:.95rem;line-height:1.45}.cs-web .cs-mt{margin:0 0 var(--spacing-4);font-size:1rem}.cs-web-grid{columns:3 18rem;column-gap:var(--spacing-4)}.cs-web-grid>*{margin-bottom:var(--spacing-4)}.cs-section .cs-cta{margin-top:var(--spacing-6);border-color:var(--color-primary)}:root[data-theme=dark] .cs-section .cs-cta{border-color:var(--color-secondary)}.cs-section .cs-cta-title{color:inherit;font-size:1.25rem}.cs-section .cs-cta-body{color:var(--color-ink-soft);margin:var(--spacing-1) 0 var(--spacing-3)}@media(max-width:760px){.cs-formats{grid-template-columns:1fr}.cs-web{padding:var(--spacing-3)}}
