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/* Original prompts remain visible before both the method and the solution. */
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.lesson{width:100%}.lesson-topline{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:17px}.lesson .chips{margin:0;gap:7px}.lesson .chip{border:1px solid #cdd4c8;border-radius:5px;min-width:35px;text-align:center;font-size:12px;font-weight:600;padding:6px 10px;background:transparent}.lesson .chip.active{background:var(--accent);border-color:var(--accent);color:white}.lesson-deck{font-size:11px;color:var(--muted);letter-spacing:.3px}.lesson-header{max-width:none;display:grid;grid-template-columns:minmax(0,1fr) 205px;gap:28px;margin:43px 0 48px;align-items:center}.lesson-kicker{font-size:11px;letter-spacing:.4px;text-transform:none;display:flex;gap:11px;align-items:center;color:var(--accent);font-weight:500;margin-bottom:19px}.lesson-kicker span{font-size:9px;letter-spacing:1.2px;padding:4px 7px;border:1px solid var(--accent-line);border-radius:3px;font-weight:700}.lesson-header h1{font-size:clamp(34px,3.4vw,56px);letter-spacing:-1.9px;line-height:1.04;font-weight:500;text-wrap:balance;max-width:800px;color:#202f29}.lesson-intro{font-size:14px;line-height:1.7;max-width:590px;color:#6b736c;margin-top:21px}.lesson-route{padding:18px 0 5px 24px;border-left:1px solid var(--accent-line)}.lesson-route>div{display:flex;gap:13px;align-items:center;position:relative;padding-bottom:22px}.lesson-route>div:last-of-type{padding-bottom:0}.lesson-route>div:not(:last-of-type):after{content:'';position:absolute;left:13px;top:29px;width:1px;height:20px;background:var(--accent-line)}.route-node{background:var(--accent-soft);border:1px solid var(--accent-line);border-radius:50%;display:grid;place-items:center;width:28px;height:28px;font-size:9px;color:var(--accent);flex-shrink:0}.lesson-route b{font-family:'Outfit',sans-serif;font-weight:500;font-size:17px;color:var(--accent-deep)}.route-caption{display:block;color:var(--muted);font-size:9px;margin-top:16px}
.lesson-layout{grid-template-columns:minmax(0,1fr) 180px;gap:36px}.lesson-reading{max-width:900px}.lesson-nav{top:26px;padding-top:15px;border-top:2px solid var(--accent);border-bottom:0}.lesson-nav>p{font-size:9px;letter-spacing:1.5px;color:var(--accent);padding:0 9px 14px}.lesson-nav-items{gap:3px}.lesson-nav button{font-size:11px;padding:9px 8px;line-height:1.4;border-radius:5px;gap:8px}.lesson-nav button span{font-size:9px}.lesson-nav button.active{background:var(--accent-soft);color:var(--accent-deep)}.lesson-nav button:hover{background:var(--accent-soft)}.lesson-read-track{margin:17px 8px 0;background:var(--accent-soft);height:2px}.lesson-read-track span{background:var(--accent)}
.lesson-chapter{border-top:1px solid #cbd3c5;border-bottom:0;padding:30px 0 20px;margin:0 0 48px;scroll-margin-top:26px}.lesson-chapter-heading{align-items:flex-start;gap:18px;margin:0 0 20px}.lesson-chapter-number{font-family:'Outfit',sans-serif;font-size:37px;font-weight:400;line-height:1;color:var(--accent);opacity:.5;padding-top:24px;letter-spacing:-1.5px}.chapter-topic{text-transform:uppercase;font-size:9px;font-weight:600;letter-spacing:1.3px;color:var(--accent);margin:0 0 9px}.lesson-chapter h2{font-size:clamp(27px,2.5vw,38px);line-height:1.12;letter-spacing:-1px;font-weight:500;text-wrap:balance}.concept-takeaway{font-size:21px;line-height:1.45;letter-spacing:-.3px;border-left:4px solid var(--accent);background:var(--accent-soft);padding:17px 21px;color:var(--accent-deep);margin:22px 0 16px}.concept-keywords{display:flex;flex-wrap:wrap;gap:8px 17px;margin:0 0 28px;padding:0 3px}.concept-keywords span{font-size:10px;font-weight:650;letter-spacing:.3px;color:var(--accent);display:flex;gap:6px;align-items:center}.concept-keywords span:before{content:'';background:var(--accent);width:4px;height:4px;border-radius:50%}.concept-board{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 26px;margin-bottom:24px}.concept-block{min-width:0;padding:0 0 0 15px;border-left:1px solid var(--accent-line)}.concept-title{display:flex;align-items:center;gap:8px;margin-bottom:10px}.concept-dot{width:7px;height:7px;border-radius:2px;background:var(--accent);flex-shrink:0}.concept-block:nth-child(3n+2) .concept-dot{background:#d78b48}.concept-block:nth-child(3n) .concept-dot{background:#7196b2}.concept-block h3{font-size:19px;line-height:1.2;letter-spacing:-.35px;font-weight:500}.concept-points{font-size:13px;line-height:1.8;color:#58645b}.concept-points p+p{margin-top:10px}.concept-points strong{font-weight:650;color:#213c2e;background:linear-gradient(transparent 60%,#e5ebce 60%);padding-bottom:1px}.concept-contrast .concept-block:nth-child(-n+2){border:0;padding:20px;background:#e7eee1}.concept-contrast .concept-block:nth-child(2){background:#ede6db}.concept-contrast .concept-block:nth-child(-n+2) h3{font-size:21px}.concept-sequence .concept-block{position:relative}.concept-grid .concept-block:last-child:nth-child(odd){border-left:3px solid var(--accent-line);background:#eeeee6;padding:15px 18px}.visual-section-label{font-size:9px;letter-spacing:1.5px;font-weight:650;text-transform:uppercase;color:var(--accent);margin:0 0 15px}
.lesson .lesson-relations{padding:20px 22px;border-left:0;border-radius:0;border-top:2px solid var(--accent-line);border-bottom:1px solid var(--accent-line);background:#fffdf9;margin:28px 0}.lesson .formula-name{background:var(--accent-soft);color:var(--accent-deep);border-radius:4px;font-size:12px;font-weight:600}.lesson .formula-connector{color:var(--accent)}.lesson .formula-item{border-color:var(--line)}.lesson .formula-expression .katex{font-size:1.13em}.lesson .formula-transcription{background:#fffdf9;border-color:var(--accent-line);border-radius:0}.lesson .math-note{color:#677166}.lesson-visuals{display:flex;flex-wrap:wrap;gap:20px;margin:25px 0}.lesson-visuals:not(:has(figure,section)){display:none}.lesson-visuals .slide-diagram{flex:1 1 260px;margin:0;max-width:440px;min-width:0}.lesson-visuals .slide-text-table{width:100%;margin:0}.lesson-visuals .diagram-equations{width:100%;margin:0}.lesson .slide-diagram figcaption{font-size:10px;color:#536455}.lesson .slide-diagram figcaption span{font-size:9px}.lesson-depth{border-top:1px solid var(--line);margin-top:15px}.lesson-depth>summary{display:flex;align-items:center;gap:10px;cursor:pointer;list-style:none;padding:15px 0;font-size:12px;color:var(--accent);font-weight:600}.lesson-depth>summary::-webkit-details-marker{display:none}.lesson-depth>summary>span:last-child{margin-left:auto;font-size:18px;font-weight:400}.lesson-depth[open]>summary>span:last-child{transform:rotate(45deg)}.depth-count{font-size:9px;background:var(--accent-soft);border-radius:3px;padding:2px 5px}.lesson-depth .lesson-prose{font-size:14px;line-height:1.9;padding:8px 5px 17px;color:#43564a}.lesson-depth .lesson-focus{font-size:14px;line-height:1.8}.slide-evidence-content{padding:5px 0 10px}.slide-evidence-content .diagram-equations{margin:10px 0 20px}.lesson-slide-examples{margin-top:27px}.lesson-example{border-radius:5px;border-color:#d7ddd1}.lesson-example>summary{font-size:13px;padding:16px 18px}.lesson-example[open]>summary{background:var(--accent-soft)}.lesson-table .data-table{font-size:12px}.lesson .table-wrap{border-radius:3px}.lesson .garnier-case{border-color:var(--accent-line)}
@media(min-width:1550px){.main{padding-left:55px;padding-right:55px}.lesson-layout{gap:46px;grid-template-columns:minmax(0,1fr) 200px}.concept-points{font-size:14px}}
@media(max-width:1180px){.shell{grid-template-columns:195px minmax(0,1fr)}.sidebar{padding:25px 13px}.main{padding:24px 28px 40px}.lesson-layout{gap:24px;grid-template-columns:minmax(0,1fr) 165px}.lesson-header{grid-template-columns:minmax(0,1fr) 165px}.lesson-route{padding-left:18px}.lesson-header h1{font-size:39px}.concept-points{font-size:12px}.concept-board{gap:22px 18px}}
@media(max-width:1100px){.lesson-layout{display:flex;gap:28px}.lesson-nav{background:var(--paper);top:0;padding:12px 0 7px;border-bottom:1px solid var(--line);box-shadow:0 7px 12px #f6f5efe8}.lesson-nav-items{flex-direction:row;flex-wrap:nowrap;max-height:none;overflow-x:auto;padding-bottom:3px}.lesson-nav button{flex:0 0 auto;width:auto;font-size:10px;padding:8px}.lesson-nav>p{padding:0 0 7px;font-size:8px}.lesson-read-track{margin:4px 0 0}.lesson-reading{max-width:none}.lesson-chapter h2{font-size:31px}.concept-points{font-size:13px}.lesson-chapter-number{font-size:34px}}
@media(max-width:900px){.shell{display:block}.sidebar{padding:25px 20px;background:#1d302b}.mobile-bar{background:#1d302b}.main{padding:20px 25px 35px}.lesson-nav{top:58px}.lesson-header h1{font-size:43px}.lesson-header{margin:30px 0 32px}.lesson-header .lesson-intro{font-size:14px}.lesson-chapter{margin-bottom:35px}.lesson-chapter-number{font-size:35px}}
@media(max-width:620px){.main{padding:17px 18px 30px}.lesson-header{grid-template-columns:1fr;gap:20px;margin:27px 0 23px}.lesson-header h1{font-size:37px;letter-spacing:-1.3px}.lesson-route{border-left:0;border-top:1px solid var(--accent-line);padding:16px 0 0;display:flex;gap:12px;flex-wrap:wrap}.lesson-route>div{padding:0;gap:5px}.lesson-route>div:not(:last-of-type):after{display:none}.route-node{width:22px;height:22px;font-size:8px}.lesson-route b{font-size:13px}.route-caption{display:none}.lesson-kicker{font-size:10px;margin-bottom:15px}.lesson-deck{font-size:9px}.lesson-topline{padding-bottom:13px}.lesson .chip{min-width:29px;padding:5px 8px;font-size:11px}.lesson-chapter{padding-top:23px}.lesson-chapter-heading{gap:12px}.lesson-chapter-number{font-size:28px;padding-top:24px}.lesson-chapter h2{font-size:29px}.chapter-topic{font-size:8px}.concept-takeaway{font-size:19px;padding:15px 17px;margin:18px 0 14px}.concept-keywords{gap:7px 12px;margin-bottom:23px}.concept-keywords span{font-size:9px}.concept-board{grid-template-columns:1fr;gap:20px}.concept-block{padding-left:13px}.concept-points{font-size:13px;line-height:1.8}.concept-block h3{font-size:19px}.concept-contrast .concept-block:nth-child(-n+2){padding:17px}.lesson .lesson-relations{padding:17px 12px}.lesson .formula-link{grid-template-columns:minmax(82px,.9fr) 20px minmax(0,1.5fr);gap:6px}.lesson .formula-name{font-size:10px;padding:8px 6px}.lesson .formula-expression .katex{font-size:1em}.lesson-visuals{gap:18px}.lesson-visuals .slide-diagram{flex-basis:100%}.lesson-depth .lesson-prose{font-size:13px}.lesson-nav button{font-size:10px}.lesson-nav-items{max-height:none}.lesson-depth>summary{font-size:11px}.lesson-intro{margin-top:17px}.visual-section-label{font-size:8px}}
@media print{.concept-board{display:grid;grid-template-columns:1fr 1fr;gap:15px}.concept-block{break-inside:avoid}.concept-points{font-size:10px}.concept-takeaway{font-size:16px;print-color-adjust:exact;-webkit-print-color-adjust:exact}.lesson-chapter h2{font-size:22px}.concept-block h3{font-size:14px}.lesson-depth>summary{font-size:11px}.lesson-depth>summary>span:last-child{display:none}.lesson-prose{font-size:10px}.lesson-relations,.concept-contrast .concept-block{print-color-adjust:exact;-webkit-print-color-adjust:exact}.lesson-visuals .slide-diagram{max-width:440px}.lesson-keywords{font-size:9px}.lesson-source{font-size:8px}}

/* Explicit reading paths: stages descend; only true sequences use connecting arrows. */
.concept-board{display:block;container-type:inline-size;margin:28px 0 30px}
.reading-path{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:40px}
.concept-stage{position:relative;min-width:0}
.concept-stage+.concept-stage:before{content:'↓';position:absolute;top:-33px;left:9px;font-size:23px;line-height:25px;color:var(--accent);font-family:'DM Sans',sans-serif}
.concept-stage-heading{display:flex;gap:11px;align-items:center;margin-bottom:17px}
.concept-stage-heading h3{font-family:'DM Sans',sans-serif;font-size:13px;font-weight:650;letter-spacing:0;line-height:1.45;color:var(--accent-deep);flex:1;min-width:0}
.stage-number{display:grid;place-items:center;width:32px;height:27px;font-size:10px;letter-spacing:.5px;font-weight:600;flex-shrink:0;background:var(--accent);color:white;border-radius:4px}
.stage-type{font-size:8px;line-height:1.5;text-transform:uppercase;letter-spacing:.8px;color:var(--accent);white-space:nowrap;padding:4px 7px;border:1px solid var(--accent-line);border-radius:3px}
.concept-group{display:grid;gap:14px;grid-template-columns:1fr}
.concept-board .concept-block{position:relative;grid-column:auto;min-width:0;padding:18px 20px;background:#fffdf8;border:1px solid var(--line);border-top:3px solid var(--accent-line);border-radius:5px}
.concept-title{gap:9px;align-items:baseline;margin-bottom:11px}
.concept-order{font-family:'DM Sans',sans-serif;flex-shrink:0;font-size:10px;line-height:1.3;color:var(--accent);font-weight:700}
.concept-block h3{font-size:20px;font-weight:500;line-height:1.2}
.group-compare .concept-block:first-child{background:#e8eee2;border-top-color:#8caa75}
.group-compare .concept-block:nth-child(2){background:#ede8df;border-top-color:#cda574}
.group-compare .concept-block:nth-child(3){background:#e5edf2;border-top-color:#8aafc4}
.group-single .concept-block{border:0;border-left:3px solid var(--accent-line);border-radius:0;background:transparent;padding:6px 0 6px 18px;margin-left:15px}
.group-single .concept-order{display:none}
.group-sequence{gap:32px}
.group-sequence .concept-block{background:var(--accent-soft);border-color:var(--accent-line);border-top:3px solid var(--accent);padding:18px}
.group-sequence .concept-block:not(:last-child):after{content:'↓';position:absolute;left:calc(50% - 10px);bottom:-29px;width:20px;text-align:center;line-height:24px;font-size:24px;color:var(--accent)}
.group-sequence .concept-order{background:var(--accent);color:white;border-radius:50%;width:21px;height:21px;display:grid;place-items:center;line-height:21px;position:relative;top:-1px}
.concept-feedback{display:flex;gap:9px;align-items:center;margin:13px 0 0;padding:8px 16px;border:1px dashed var(--accent-line);border-radius:5px;color:var(--accent-deep);font-size:11px;background:var(--accent-soft)}
.concept-feedback>span{font-size:28px;line-height:1.1}.concept-feedback p{margin:0;font-weight:600}
.concept-matrix{border:1px solid var(--line);border-radius:4px;overflow:hidden}
.matrix-header{display:none}
.concept-board .matrix-row{border:0;border-radius:0;border-bottom:1px solid var(--line);padding:17px;background:#fffdf8;display:grid;grid-template-columns:1fr;gap:10px}
.concept-board .matrix-row:last-child{border-bottom:0}
.matrix-row .concept-title{margin:0}.matrix-row .concept-title h3{font-size:16px}.matrix-row .concept-points{padding:12px;background:#e8eee2}.matrix-row .concept-points:last-child{background:#ede8df}
@container (min-width:520px){
 .group-compare{grid-template-columns:repeat(2,minmax(0,1fr))}
 .group-compare.three-across{grid-template-columns:1fr}
 .group-sequence:not(.long-sequence){grid-template-columns:repeat(2,minmax(0,1fr));gap:30px}
 .group-sequence.three-across{grid-template-columns:1fr}
 .group-sequence:not(.long-sequence):not(.three-across) .concept-block:not(:last-child):after{content:'→';left:auto;right:-27px;bottom:auto;top:calc(50% - 12px)}
 .group-single .concept-block{display:grid;grid-template-columns:minmax(130px,.65fr) minmax(0,1.6fr);gap:22px;padding:10px 0 10px 18px}
 .group-single .concept-title{margin:0}.group-single .concept-block h3{font-size:19px}
 .matrix-header{display:grid;grid-template-columns:145px 1fr 1fr;background:var(--accent);color:#fff;font-size:11px;gap:0}.matrix-header>*{padding:14px;font-weight:600}
 .concept-board .matrix-row{grid-template-columns:145px minmax(0,1fr) minmax(0,1fr);padding:0;gap:0}
 .matrix-row .concept-title{padding:16px 12px;align-items:flex-start}.matrix-row .concept-title h3{font-size:14px;line-height:1.5}.matrix-row .concept-points{padding:16px 14px;font-size:12px}
}
@container (min-width:700px){
 .group-compare.three-across,.group-sequence.three-across{grid-template-columns:repeat(3,minmax(0,1fr))}
 .group-sequence.three-across .concept-block:not(:last-child):after{content:'→';left:auto;right:-27px;bottom:auto;top:calc(50% - 12px)}
 .group-sequence.three-across .concept-block{padding:17px 14px}.group-sequence.three-across .concept-title{gap:8px}.group-sequence.three-across .concept-block h3{font-size:18px}
 .group-compare.three-across .concept-block h3{font-size:18px}.group-compare.three-across .concept-block{padding:17px}
 .long-sequence .concept-block{display:grid;grid-template-columns:180px minmax(0,1fr);gap:20px}.long-sequence .concept-title{margin:0}
}
@media(max-width:620px){.concept-board{margin-top:23px}.concept-stage-heading{gap:9px;margin-bottom:14px}.concept-stage-heading h3{font-size:12px}.stage-type{font-size:7px;padding:3px 4px;letter-spacing:.3px}.stage-number{width:29px;height:25px;font-size:9px}.concept-board .concept-block{padding:17px}.concept-board .group-single .concept-block{padding:5px 0 5px 15px}.concept-block h3{font-size:19px}.concept-feedback{font-size:10px;padding:9px 12px}.reading-path{gap:36px}.concept-stage+.concept-stage:before{top:-31px}.matrix-row .concept-points{font-size:12px}}
@media print{.concept-board{display:block;container-type:normal}.reading-path{gap:25px}.concept-stage+.concept-stage:before{top:-23px;font-size:18px}.concept-stage-heading{break-after:avoid}.concept-stage-heading h3{font-size:11px}.concept-group{grid-template-columns:1fr 1fr}.group-single{grid-template-columns:1fr}.group-sequence{grid-template-columns:1fr;gap:26px}.concept-block h3{font-size:14px}.concept-board .concept-block{padding:13px}.concept-board .concept-block{print-color-adjust:exact;-webkit-print-color-adjust:exact}.concept-stage{break-inside:auto}.concept-feedback{font-size:10px}.stage-number{print-color-adjust:exact;-webkit-print-color-adjust:exact}.concept-board .matrix-row{display:block}}

/* Clarity pass: readable type, complete contents navigation and quieter supporting material. */
@media screen{
 .concept-points{font-size:15px;line-height:1.7;color:#46564b}
 .concept-points p+p{margin-top:12px}
 .concept-block h3{font-size:21px;line-height:1.25;letter-spacing:-.25px}
 .concept-stage-heading h3{font-size:14px;line-height:1.5}
 .concept-keywords span{font-size:11px;line-height:1.6}
 .chapter-topic,.visual-section-label{font-size:10px;line-height:1.5;letter-spacing:1.1px}
 .concept-feedback{font-size:12px;line-height:1.65}
 .concept-order{font-size:11px}.stage-number{font-size:11px}
 .lesson .lesson-relations{padding:22px 24px}
 .lesson .formula-link{grid-template-columns:minmax(140px,.85fr) 28px minmax(0,2fr);gap:14px}
 .lesson .formula-name{font-size:13px;line-height:1.5;padding:10px 11px}
 .lesson .formula-expression .katex{font-size:1.18em}
 .lesson .math-note,.lesson .math-context{font-size:13px;line-height:1.75;color:#53614f}
 .lesson .math-source{font-size:11px;color:#606b5c}
 .lesson .latex-display{padding:8px 2px;scrollbar-width:thin;scrollbar-color:var(--accent-line) transparent}
 .lesson .slide-diagram figcaption,.lesson .slide-diagram figcaption span{font-size:11px;line-height:1.65;color:#536455}
 .lesson-depth>summary{font-size:13px;padding:17px 0;min-height:48px}
 .lesson-depth .lesson-prose{font-size:15px;line-height:1.8;padding:12px 3px 20px}
 .lesson-depth .lesson-prose strong{font-weight:650}
 .lesson .data-table,.garnier-case .data-table{font-size:13px;line-height:1.7}
 .lesson .data-table th,.lesson .data-table td{padding:12px 14px}
 .lesson .data-table td:has(.latex-inline){min-width:140px}
 .lesson-example>summary{font-size:15px;line-height:1.55;min-height:50px}
 .lesson-example-content,.garnier-calculations .solution-steps,.garnier-mini-algorithm li{font-size:14px;line-height:1.8}
 .lesson .result{font-size:14px}
 .lesson .lesson-example-solution>h3{font-size:21px}
 .lesson-nav button{font-size:12px;line-height:1.45;padding:10px 9px}
 .lesson-nav button span{font-size:10px}.lesson-nav>p{font-size:10px}
 .lesson-nav{scrollbar-width:thin}
 .lesson-intro{font-size:16px;line-height:1.7}
 .lesson-deck,.lesson-source{font-size:12px}
 .lesson-visuals .slide-diagram{align-self:flex-start}
 .lesson-prose .slide-text-table{margin-top:24px}
 .lesson .table-wrap{scrollbar-width:thin;scrollbar-color:var(--accent-line) transparent}
 .concept-board .matrix-row .concept-points{font-size:14px;line-height:1.7;padding:17px 15px}
 .matrix-header{font-size:13px;line-height:1.5}
 .matrix-row .concept-title h3{font-size:15px}
}
.lesson-nav .lesson-contents-toggle{display:none}
@media screen and (max-width:1100px) and (min-width:621px){
 .lesson-nav-items{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:4px 6px;overflow:visible}
 .lesson-nav button{width:100%;padding:8px 9px;min-height:39px;align-items:baseline;font-size:12px}
 .lesson-nav{padding:12px 0 8px}
 .lesson-nav>p{font-size:9px;padding-bottom:7px}
}
@media screen and (max-width:620px){
 .concept-points{font-size:15px;line-height:1.7}
 .concept-stage-heading h3{font-size:13px;line-height:1.5}
 .concept-block h3{font-size:20px}
 .concept-keywords span{font-size:11px}
 .concept-takeaway{font-size:20px;line-height:1.5}
 .chapter-topic,.visual-section-label{font-size:10px}
 .lesson-depth .lesson-prose{font-size:15px;line-height:1.8}
 .lesson-intro,.lesson-header .lesson-intro{font-size:15px}
 .lesson .lesson-relations{padding:18px 11px}
 .lesson .formula-link{grid-template-columns:minmax(90px,.75fr) 20px minmax(0,1.5fr);gap:8px}
 .lesson .formula-name{font-size:12px;padding:9px 7px}
 .lesson .formula-expression .katex{font-size:1.05em}
 .lesson .math-note,.lesson .math-context{font-size:13px}
 .lesson .data-table,.garnier-case .data-table{font-size:13px}
 .lesson .data-table th,.lesson .data-table td{padding:11px 12px}
 .lesson-deck{font-size:10px}
 .lesson .formula-connector{font-size:25px}
 .lesson .concept-feedback{font-size:12px}
 .lesson-nav{padding:6px 0 5px}
 .lesson-nav>p{display:none}
 .lesson-nav .lesson-contents-toggle{display:flex;width:100%;justify-content:space-between;align-items:center;gap:14px;padding:6px 3px;border-radius:0;min-height:50px;background:transparent;text-align:left}
 .lesson-contents-toggle>span{display:block;min-width:0}
 .lesson-contents-toggle small{display:block;font-size:9px;letter-spacing:1.3px;text-transform:uppercase;color:var(--accent);margin-bottom:3px}
 .lesson-contents-toggle b{display:block;font-family:'DM Sans',sans-serif;font-size:13px;font-weight:600;line-height:1.45;color:var(--accent-deep)}
 .lesson-contents-toggle i{font-size:23px;font-style:normal;transition:transform .15s}
 .lesson-nav.is-expanded .lesson-contents-toggle i{transform:rotate(180deg)}
 .lesson-nav .lesson-nav-items{display:none}
 .lesson-nav.is-expanded .lesson-nav-items{display:grid;grid-template-columns:1fr;gap:3px;padding:7px 0;max-height:42vh;overflow-y:auto}
 .lesson-nav-items button{font-size:13px;min-height:42px;padding:10px 9px;width:100%;white-space:normal}
 .lesson-read-track{margin-top:5px}
}
@container (min-width:700px){
 .group-sequence.three-across .concept-block h3,.group-compare.three-across .concept-block h3{font-size:20px;line-height:1.25}
}
@media print{.lesson-nav .lesson-contents-toggle{display:none}}

/* Worked solutions: one calculation per block, one equality per line. */
.working-stack{display:block;min-width:0}
.working-calculation{display:block;min-width:0;line-height:1.75}
.working-calculation+.working-calculation{margin-top:14px}
.working-line{display:block;overflow-wrap:anywhere}
.working-expanded{border-left:2px solid #dce5dc;padding-left:14px}
.working-expanded .working-name{font-weight:650;color:#294638;margin-bottom:3px}
.working-expanded .working-line:not(.working-name){font-variant-numeric:tabular-nums}
.answer-copy>p:has(.working-stack){margin:0}
.answer-copy>p:has(.working-stack)+p{margin-top:17px}
.solution-steps>li:has(.working-stack){margin-top:18px;margin-bottom:18px}
@media(max-width:620px){.working-expanded{padding-left:11px}.working-calculation+.working-calculation{margin-top:12px}}
@media print{.working-calculation{break-inside:avoid;line-height:1.6}.working-calculation+.working-calculation{margin-top:9px}.working-expanded{border-left-color:#b7c8b7;padding-left:9px}}

/* Calculated values use black in working, reconstructed answer tables and print. */
.working-result{color:#111111;font-weight:650}
.working-result .answer-highlight,.working-stack .answer-highlight,.exercise-decision .answer-highlight{color:#111111}
@media print{.working-result,.working-stack .answer-highlight,.exercise-decision .answer-highlight{color:#111111!important;-webkit-print-color-adjust:exact;print-color-adjust:exact}}

/* Related calculations read left to right as blocks within their question. */
.working-layout,.working-step-grid,.working-step-grid>li>.working-stack{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,250px),1fr));gap:24px 30px;align-items:start}
.working-layout>p:has(>.working-stack),.working-layout>p>.working-stack{display:contents}
.working-layout>.answer-part-title,.working-layout>.answer-parts,.working-prose{grid-column:1/-1}
.working-layout>.answer-parts{margin-top:0}
.working-layout .working-calculation+.working-calculation,.working-step-grid .working-calculation+.working-calculation{margin-top:0}
.working-block{border-left:2px solid #dce5dc;padding-left:14px;align-self:start;min-width:0}
.working-step-grid>li:has(>.working-stack){min-width:0;margin-top:0;margin-bottom:0;padding-right:3px}
.working-step-grid>li:has(>.working-stack>.working-prose){grid-column:1/-1}
.working-step-grid>li>.working-stack{gap:24px 30px}
.working-layout .working-line,.working-step-grid .working-line{overflow-wrap:anywhere}
@media(max-width:620px){.working-layout,.working-step-grid,.working-step-grid>li>.working-stack{grid-template-columns:1fr;gap:20px}.working-block{padding-left:11px}}
@media print{.working-layout,.working-step-grid,.working-step-grid>li>.working-stack{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 20px}.working-layout .working-calculation,.working-step-grid .working-calculation{break-inside:avoid}.working-block{border-left-color:#b7c8b7;padding-left:9px}.answer-part:has(.working-layout){break-inside:auto}}

/* Number provenance: supplied inputs green; computed values black. */
.working-given,.working-given .answer-highlight{color:#177342;font-weight:650}
@media print{.working-given,.working-given .answer-highlight{color:#177342!important;-webkit-print-color-adjust:exact;print-color-adjust:exact}}

/* The arrows carry a computed value to the operand that reuses it. */
.working-flow{position:relative;isolation:isolate}
.working-connection-svg{position:absolute;left:0;top:0;overflow:visible;pointer-events:none;z-index:2}
.working-connection{fill:none;stroke:#658b77;stroke-width:1.25;stroke-linecap:round;stroke-linejoin:round;opacity:.57;vector-effect:non-scaling-stroke}
.working-flow[data-flow-hover] .working-connection{opacity:.16}
.working-flow[data-flow-hover] .working-connection.active{opacity:1;stroke:#285c43;stroke-width:1.9}
@media print{.working-connection{opacity:.65;stroke-width:.9}.working-cross-row{display:none}}

.working-block[data-flow-incoming] .working-name{margin-bottom:15px}

.working-long-connection{opacity:.2}

/* Free calculation maps: place the steps by dependency rather than source rows. */
.working-flow.canvas-ready{display:block;list-style:none;margin:0;padding:0}
.working-flow.canvas-ready>:not(.working-canvas-viewport){display:none!important}
.working-canvas-toolbar{display:flex;justify-content:flex-end;gap:5px;margin:0 0 9px}
.working-canvas-toolbar button{background:#fff;border:1px solid #d8e0d8;border-radius:5px;min-width:30px;padding:5px 8px;font-size:11px;line-height:1.3;color:#4c6254}
.working-canvas-toolbar button:hover{background:#edf3ec}
.working-canvas-window{overflow:auto;max-width:100%;background:#fff;border:0;border-radius:0;outline:none;overscroll-behavior-x:contain;overscroll-behavior-y:auto;cursor:grab;touch-action:pan-x pan-y;scrollbar-gutter:stable}
.working-canvas-window.dragging{cursor:grabbing;user-select:none}
.working-canvas-space{position:relative;min-width:100%;min-height:100%}
.working-canvas-plane{position:absolute;left:0;top:0;transform-origin:0 0}
.working-canvas-node{position:absolute;width:max-content;min-width:260px;max-width:none;background:#fff;border:1px solid #dce4da;border-radius:7px;padding:13px 15px;z-index:1;box-sizing:border-box;cursor:text}
.working-canvas-node .working-calculation{margin:0!important;display:block;line-height:1.7;font-size:14px;min-width:0}
.working-canvas-node .working-block{padding-left:11px}
.working-canvas-node .working-name{margin-bottom:5px!important;font-size:15px}
.working-canvas-node .working-line{white-space:nowrap;overflow-wrap:normal;word-break:normal}
.working-canvas-context{display:block;font-size:10px;line-height:1.5;font-weight:600;letter-spacing:.2px;color:#728276;margin:0 0 7px}
.working-canvas-arrows{position:absolute;left:0;top:0;overflow:visible;pointer-events:none;z-index:0}
.working-canvas-edge{fill:none;stroke:#6a8c76;stroke-width:1.35;stroke-linecap:round;stroke-linejoin:round;opacity:.8;vector-effect:non-scaling-stroke}
.working-canvas-edge.active{stroke:#285c43;stroke-width:2.1;opacity:1}
.flow-value-active{outline:1px solid #8da993;outline-offset:2px;border-radius:1px}
.working-canvas-notes{margin-top:20px;display:grid;gap:13px;font-size:13px;line-height:1.75}
.working-canvas-note{border-left:2px solid #e0e7df;padding-left:12px}
.working-canvas-note .working-calculation{margin:0;border:0;padding:0}
@media(max-width:620px){.working-canvas-node .working-calculation{font-size:14px}.working-canvas-toolbar{position:sticky;left:0}}
@media print{.working-flow.canvas-ready>:not(.working-canvas-viewport){display:revert!important}.working-flow.canvas-ready>.working-canvas-viewport{display:none!important}}

/* Give the calculation map more room inside the worked solution. */
.working-canvas-viewport{margin-inline:-12px}
@media(max-width:620px){.working-canvas-viewport{margin-inline:-6px}}

/* Keep the calculation space visually open; retain borders on individual steps. */
.examples[data-kind="exercise"]>.panel:has(.working-flow){border:0;border-radius:0;box-shadow:none}
.working-canvas-window:focus-visible{outline:none}
.working-canvas-viewport:has(.working-canvas-window:focus-visible) [data-canvas-zoom="reset"]{outline:2px solid #8da993;outline-offset:2px}

/* Textual answers belong to the same map as the numerical answers. */
.working-canvas-part-title{font-size:14px;font-weight:650;color:#294638;margin:0 0 8px}
.working-canvas-content.prose-answer{border-left:2px solid #dce5dc;padding-left:11px}
.working-canvas-content>.working-calculation+.working-calculation{margin-top:8px!important}

/* Original questions and answers share one unnamed, zoomable artboard. */
.working-canvas-prompt{position:absolute;background:#fff;z-index:1;box-sizing:border-box}
.working-canvas-prompt .prompt-section{margin:0!important}
.working-canvas-prompt .prompt-figure{width:100%;max-width:none;margin:0 0 18px}
.working-canvas-prompt .prompt-figure:last-child{margin-bottom:0}
.working-canvas-prompt .prompt-image{width:100%;height:auto}
.working-canvas-prompt figcaption{display:none}
.working-canvas-prompt .prompt-transcript{font-size:21px}
.working-canvas-prompt .prompt-image-button{border:0;border-radius:0;box-shadow:none}
.working-flow>.prompt-section{margin:0 0 24px}
.lesson-example-solution{margin-top:16px}
.examples[data-kind="exercise"]{margin-top:20px}
@media print{.working-flow>.prompt-section{margin:0 0 16px}}

/* A requested financial statement is presented as a completed worksheet. */
.working-statement{border-left:0!important;padding-left:0!important;min-width:720px}
.worked-statement{width:100%;border-collapse:collapse;font-family:Calibri,Arial,sans-serif;font-size:16px;line-height:1.5;color:#111}
.worked-statement caption{text-align:center;padding:5px 10px 15px;color:#111}
.worked-statement caption strong,.worked-statement caption span{display:block;font-size:20px;line-height:1.4}
.worked-statement th,.worked-statement td{border:1px solid #b6b6b6;padding:9px 12px;white-space:nowrap;background:white}
.worked-statement thead th{background:#e2efda;font-weight:700;text-align:left}
.worked-statement tbody th{text-align:left;font-weight:400}
.worked-statement .statement-amount{text-align:right;min-width:110px;font-variant-numeric:tabular-nums}
.worked-statement .statement-calculation{text-align:right;min-width:220px;font-size:15px}
.worked-statement thead th:last-child{text-align:right}
.worked-statement .statement-indent th{padding-left:28px}
.worked-statement .statement-heading th{background:#f2f2f2;font-weight:700}
.worked-statement .statement-subtotal th,.worked-statement .statement-final th{font-weight:700}
.worked-statement .statement-subtotal .statement-amount{border-top:2px solid #333}
.worked-statement .statement-final .statement-amount{border-top:2px solid #222;border-bottom:4px double #222;font-weight:700}
@media print{.working-statement{min-width:0}.worked-statement{font-size:10px}.worked-statement .statement-calculation{min-width:0;font-size:9px}.worked-statement .statement-amount{min-width:0}.worked-statement caption strong,.worked-statement caption span{font-size:14px}}

/* Chief: two complete statements, with each calculation aligned to its own row. */
.chief-comparison{border:0!important;padding:0!important}
.working-canvas-node:has(.chief-comparison){border:0;border-radius:0;padding:0}
.chief-shared{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-bottom:34px}
.chief-calculation{display:flex;flex-direction:column;gap:3px;font-size:15px;line-height:1.5;border-left:2px solid #dce5dc;padding-left:12px;white-space:nowrap}
.chief-calculation>strong{font-size:15px;color:#294638;font-weight:650}
.chief-calculation>b,.chief-calculation span>b{color:#111}
.chief-methods{display:flex;gap:96px;align-items:flex-start}
.chief-method{display:flex;flex-direction:column;align-items:flex-start;gap:64px}
.chief-method-row{display:flex;align-items:flex-start;gap:0;width:100%}
.chief-side-calculations{width:336px;flex:0 0 336px}
.chief-side-spacer{height:80px}
.chief-calculation-slot{height:86px;display:flex;align-items:center;gap:10px;position:relative;box-sizing:border-box}
.chief-method-left .chief-calculation-slot{padding-right:34px}
.chief-method-right .chief-calculation-slot{padding-left:34px}
.chief-transfer{position:absolute;font-size:30px;color:#6a8c76;line-height:1;top:28px}
.chief-method-left .chief-transfer{right:2px}.chief-method-right .chief-transfer{left:2px}
.chief-calculation-divider{height:44px}
.chief-statement{width:400px;flex:0 0 400px;border-collapse:collapse;font-family:Calibri,Arial,sans-serif;font-size:16px;line-height:1.5;color:#111;table-layout:fixed}
.chief-statement caption{height:80px;text-align:center;box-sizing:border-box;padding:9px 4px}
.chief-statement caption strong,.chief-statement caption span{display:block;font-size:19px;line-height:1.5}
.chief-statement th,.chief-statement td{height:86px;box-sizing:border-box;padding:10px 12px;border:1px solid #b6b6b6;background:#fff;vertical-align:middle}
.chief-statement th{width:72%;text-align:left;font-weight:400;white-space:normal}
.chief-statement td{width:28%;text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums}
.chief-statement .chief-summary th{background:#f3f6ef}
.chief-question{display:inline-block;color:#294638;margin-right:5px}
.chief-statement .chief-statement-divider th{height:44px;background:#e2efda;font-weight:700;text-align:center}
.chief-statement .chief-subtotal th,.chief-statement .chief-final th{font-weight:700}
.chief-statement .chief-subtotal td{border-top:2px solid #333}
.chief-statement .chief-final td{border-top:2px solid #222;border-bottom:4px double #222;font-weight:700}
.chief-reconciliation{margin-top:35px;padding:20px 24px;border-left:3px solid #9cb594;max-width:1050px;font-size:16px;line-height:1.7}
.chief-reconciliation p{margin-top:7px}
@media print{.chief-methods{display:block}.chief-method{break-inside:avoid;margin-bottom:25px}.chief-shared{grid-template-columns:1fr 1fr}.chief-side-calculations{width:270px;flex-basis:270px}.chief-statement{width:350px;flex-basis:350px}.chief-calculation{font-size:11px}.chief-calculation>strong{font-size:11px}.chief-statement{font-size:12px}.chief-statement caption strong,.chief-statement caption span{font-size:14px}}

/* Keep each full calculation on one line beneath its item label. */
.chief-equation{display:block;white-space:nowrap}
.chief-side-calculations{width:max-content;min-width:336px;flex:0 0 auto}
@media print{.chief-side-calculations{min-width:270px}}

/* Three Turtles: one contribution statement with variable calculations left and fixed calculations right. */
.turtles-preparation{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-bottom:32px}
.turtles-workbench{display:flex;align-items:flex-start}
.turtles-statement{width:480px;flex-basis:480px}
.turtles-statement caption{height:102px;padding-top:8px}
.turtles-statement caption small{display:block;font-size:13px;line-height:1.5;margin-top:5px}
.turtles-side{width:max-content;flex:0 0 auto}
.turtles-side-left{min-width:450px}.turtles-side-right{min-width:420px}
.turtles-side-spacer{height:102px}
.turtles-side-left .chief-calculation-slot{padding-right:34px}
.turtles-side-right .chief-calculation-slot{padding-left:34px}
.turtles-side-left .chief-transfer{right:2px}.turtles-side-right .chief-transfer{left:2px}
@media print{.turtles-preparation{grid-template-columns:1fr}.turtles-workbench{zoom:.68}.turtles-side-left{min-width:390px}.turtles-side-right{min-width:360px}.turtles-statement{width:420px;flex-basis:420px}}

/* Golden Bay: the cost schedule feeds COGS straight into the completed income statement. */
.golden-preparation{margin-bottom:30px}
.golden-workbench,.golden-method{display:flex;align-items:flex-start}
.golden-statement{width:380px;flex-basis:380px;font-size:15px;line-height:1.4}
.golden-statement caption{height:80px}
.golden-statement caption strong,.golden-statement caption span{font-size:18px}
.golden-statement th,.golden-statement td{height:64px;padding:8px 10px}
.golden-statement .chief-statement-divider th{height:44px}
.golden-side{width:max-content;flex:0 0 auto}
.golden-side-left{min-width:370px}.golden-side-right{min-width:330px}
.golden-side-spacer{height:80px}
.golden-side .chief-calculation-slot{height:64px}
.golden-side .chief-calculation,.golden-side .chief-calculation>strong{font-size:14px}
.golden-side-left .chief-calculation-slot{padding-right:34px}
.golden-side-right .chief-calculation-slot{padding-left:34px}
.golden-side .chief-transfer{top:17px}
.golden-side-left .chief-transfer{right:2px}.golden-side-right .chief-transfer{left:2px}
.golden-handoff{position:relative;width:64px;flex:0 0 64px;align-self:stretch}
.golden-handoff>span{position:absolute;left:0;width:64px;text-align:center;transform:translateY(-50%);font-size:44px;line-height:1;color:#5d816d}
.golden-import{background:#f4f7ef}
@media print{.golden-workbench{display:block}.golden-handoff{display:none}.golden-method-right{margin-top:25px!important}.golden-method{break-inside:avoid}.golden-side{min-width:300px}.golden-statement{width:350px;flex-basis:350px}}

/* Comfy: one shared statement structure for the current case and all alternatives. */
.comfy-workbench{width:1572px;max-width:none;color:#111}
.comfy-sheet{width:1120px;table-layout:fixed;border-collapse:collapse;font-family:Calibri,Arial,sans-serif;color:#111;line-height:1.45}
.comfy-sheet th,.comfy-sheet td{height:64px;border:1px solid #b6b6b6;padding:10px 9px;background:#fff;vertical-align:middle;box-sizing:border-box}
.comfy-sheet tbody th{text-align:left;font-size:17px;font-weight:400;white-space:normal}
.comfy-sheet thead th{height:56px;background:#e2efda;text-align:center;font-size:18px;font-weight:700}
.comfy-sheet thead th:first-child{text-align:left}
.comfy-sheet td{text-align:right;font-size:17px;font-variant-numeric:tabular-nums}
.comfy-workbench .comfy-equation{display:block;white-space:nowrap;font-size:16px;line-height:1.6}
.comfy-sheet .comfy-changed{background:#edf5fb}
.comfy-sheet .comfy-baseline{background:#f6f8f3;border-right:3px solid #a8b9a2}
.comfy-sheet .comfy-requirements th{height:38px;background:#f1f5ec;font-size:16px}
.comfy-sheet .comfy-section th{height:42px;background:#f1f4ef;font-weight:700;font-size:18px}
.comfy-sheet .comfy-statement-start th{height:64px;background:#e2efda;border-top:3px solid #a8b9a2}
.comfy-sheet .comfy-subtotal th,.comfy-sheet .comfy-final th,.comfy-sheet .comfy-delta th{font-weight:700}
.comfy-sheet .comfy-subtotal td{border-top:2px solid #777}
.comfy-sheet .comfy-final td{border-top:2px solid #222;border-bottom:4px double #222}
.comfy-sheet .comfy-delta th,.comfy-sheet .comfy-delta td{height:86px;background:#f2f6ef}
.comfy-rule{margin:0 0 22px;font-size:18px;line-height:1.6;white-space:normal}
.comfy-workbench .comfy-equation .working-given{color:#147d3f}
.comfy-workbench .working-result{color:#111}
.comfy-linked-sheet{position:relative;width:1572px;padding:0 36px;box-sizing:border-box}
.comfy-brackets{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none}
.comfy-bracket-line{fill:none;stroke-width:2.2;stroke-linecap:square;stroke-linejoin:miter}

@media print{.comfy-workbench{zoom:.61}}

/* Socks Unlimited: one exercise, four numbered requirements, and three checked statements. */
.socks-company{font-size:23px;text-align:center;margin:0 0 24px;color:#111}
.socks-margin{margin-bottom:30px}
.socks-margin h4{font-size:18px;color:#294638;margin:0 0 15px}
.socks-margin-flow{display:flex;align-items:center;gap:28px}
.socks-transfer{font-size:36px;color:#6a8c76}
.socks-equation{display:block;white-space:nowrap;font-size:14px;line-height:1.7}
.socks-equation>b,.socks-equation>mark{font-size:15px}
.socks-statement{width:1420px;table-layout:fixed;border-collapse:collapse;font-family:Calibri,Arial,sans-serif;color:#111;line-height:1.45}
.socks-statement col.socks-label-column{width:310px}
.socks-statement th,.socks-statement td{height:66px;padding:9px 12px;border:1px solid #b6b6b6;box-sizing:border-box;vertical-align:middle;background:#fff}
.socks-statement thead th{font-size:18px;background:#e2efda;text-align:center}
.socks-statement tbody th{font-size:16px;font-weight:400;text-align:left;white-space:normal}
.socks-statement td{text-align:right;font-size:16px;font-variant-numeric:tabular-nums}
.socks-statement .socks-changed{background:#eaf4fb;box-shadow:inset 3px 0 #8ebbd6}
.socks-statement .socks-section th{height:42px;background:#e2efda;font-weight:700}
.socks-statement .socks-subtotal th,.socks-statement .socks-final th{font-weight:700}
.socks-statement .socks-subtotal td{border-top:2px solid #777}
.socks-statement .socks-final td{border-top:2px solid #222;border-bottom:4px double #222}
.socks-statement .socks-arrows th,.socks-statement .socks-arrows td{height:35px;border:0;background:#fff;padding:0;text-align:center;color:#6a8c76;font-size:25px}
.socks-difference{margin-top:28px;padding-left:20px;border-left:3px solid #9cb594;font-size:16px;line-height:1.7;max-width:1100px}
.socks-difference>b{display:block;color:#294638;margin-bottom:5px}
.socks-difference p{margin-top:8px;white-space:normal}
@media print{.socks-comparison{zoom:.67}.socks-statement{width:1030px}.socks-statement col.socks-label-column{width:250px}.socks-equation{font-size:11px}.socks-equation>b,.socks-equation>mark{font-size:12px}}

/* Connect the two target volumes directly to their comparison and explanation. */
.socks-statement .socks-difference-row td{border:0;padding:0;height:auto;vertical-align:top;background:#fff}
.socks-quantity-arrows{display:grid;grid-template-columns:1fr 1fr;height:36px;align-items:center;text-align:center;color:#6a8c76;font-size:28px;line-height:1}
.socks-statement .socks-difference-row .socks-difference{margin:0 0 22px;padding:13px 18px 16px;border-left:0;border-top:2px solid #9cb594;background:#f5f8f3;max-width:none;text-align:left;font-size:16px;line-height:1.6}

/* Requirement 1 sits beside its original question, connected by a straight arrow. */
.socks-question-layout{display:grid;grid-template-columns:minmax(0,1fr) 40px 400px;gap:16px;align-items:center}
.socks-question-image{min-width:0}
.socks-prompt-arrow{font-size:42px;line-height:1;color:#6a8c76;text-align:center}
.socks-prompt-answer{width:400px;min-width:0}
.socks-prompt-answer h4{font-size:18px;color:#294638;margin:0 0 20px}
.socks-prompt-answer .chief-calculation+.chief-calculation{margin-top:25px}
@media print{.socks-question-layout{display:block}.socks-prompt-arrow{display:none}.socks-prompt-answer{width:auto;break-inside:avoid;margin:20px 0}.socks-prompt-answer .chief-calculation+.chief-calculation{margin-top:12px}}

/* Start with the shared statement, then apply its quantity formula to each question. */
.socks-general{width:1420px}
.socks-model{width:1200px;margin:0 auto;border-collapse:collapse;table-layout:fixed;font-family:Calibri,Arial,sans-serif;color:#111;font-size:18px;line-height:1.4}
.socks-model caption{font-weight:700;font-size:22px;text-align:left;padding:0 0 16px}
.socks-model th,.socks-model td{padding:13px 18px;border:1px solid #b6b6b6;height:58px;box-sizing:border-box;background:white;text-align:left}
.socks-model th:first-child{width:300px}
.socks-model thead th{background:#e2efda;font-weight:700}
.socks-model tbody th{font-weight:400}
.socks-model td{white-space:nowrap}
.socks-model-subtotal th,.socks-model-income th{font-weight:700!important}
.socks-model-subtotal td{border-top:2px solid #777}
.socks-model-income th,.socks-model-income td{background:#f1f6ed;border-top:2px solid #222;border-bottom:4px double #222}
.socks-model-arrow{height:48px;display:flex;justify-content:center;align-items:center;color:#6a8c76;font-size:34px;line-height:1}
.socks-required-formula{display:flex;align-items:center;justify-content:center;gap:32px;padding:10px 20px 14px;color:#111}
.socks-required-formula>strong{font-size:23px;color:#294638}
.socks-required-formula>span[aria-hidden]{font-size:34px;color:#6a8c76}
.socks-required-formula .katex{font-size:1.35em}
.socks-case-arrows{display:grid;grid-template-columns:repeat(3,1fr);margin-left:310px;height:48px;align-items:center;text-align:center;font-size:30px;line-height:1;color:#6a8c76}
.socks-cases .socks-final td{height:80px}
.socks-cases .socks-single-arrow{grid-template-columns:1fr}
.socks-break-even-revenue{padding:13px 18px 16px;border-top:2px solid #9cb594;font-size:16px;line-height:1.6;text-align:left}
.socks-break-even-revenue>b{display:block;color:#294638;margin-bottom:5px}
.socks-cases .socks-difference-row .socks-difference{margin-bottom:0}
@media print{.socks-general{width:1420px;zoom:.67}.socks-model{width:1200px}.socks-cases{width:1420px}.socks-cases col.socks-label-column{width:310px}.socks-model,.socks-required-formula,.socks-cases{break-inside:avoid}.socks-required-formula .katex{font-size:1.1em}}

/* The equivalent sales quantity sits to the right of the operating income row. */
.socks-general{width:1540px}
.socks-general-layout{display:grid;grid-template-columns:900px 40px 550px;gap:25px;align-items:end}
.socks-general-layout .socks-model{width:900px;margin:0;font-size:16px}
.socks-general-layout .socks-model th:first-child{width:220px}
.socks-general-layout .socks-model th,.socks-general-layout .socks-model td{padding:13px 14px}
.socks-general-layout .socks-model-arrow{height:34px;font-size:34px;line-height:1;margin-bottom:12px}
.socks-general-layout .socks-required-formula{display:block;padding:0;margin:0;color:#111}
.socks-general-layout .socks-required-formula>strong{display:block;font-size:22px;line-height:1.4;white-space:nowrap;margin-bottom:12px;color:#294638}
.socks-formula-equality{display:flex;align-items:center;gap:18px;min-height:58px}
.socks-formula-equality>span[aria-hidden]{font-size:26px;line-height:1}
.socks-formula-equality .latex-display{overflow:visible;padding:0}
.socks-formula-equality .katex-display{margin:0}
.socks-general .socks-case-arrows{width:1110px;margin-left:370px}
.socks-general .socks-cases{margin:96px 0 0}
@media print{.socks-general{width:1540px;zoom:.62}.socks-general-layout{break-inside:avoid}.socks-formula-equality .katex{font-size:1.25em}}

/* Keep the answer notes in place without arrows or the green rule. */
.socks-cases .socks-break-even-revenue,.socks-cases .socks-difference-row .socks-difference{border-top:0;margin-top:36px;padding-top:15px}

/* Attach the volume comparison only to the new-cost column. */
.socks-difference-arrow{height:36px;display:flex;align-items:center;justify-content:center;color:#6a8c76;font-size:28px;line-height:1}
.socks-cases .socks-difference-row .socks-difference{margin-top:0}

/* Set both sides of the equation in the same LaTeX typeface and on one line. */
.socks-general{width:1610px}
.socks-general-layout{grid-template-columns:900px 40px 620px}
.socks-general-layout .socks-required-formula{display:flex;align-items:center;min-height:58px}
.socks-required-formula .latex-display{padding:0;overflow:visible}
.socks-required-formula .katex-display{margin:0}
.socks-required-formula .katex{font-size:1.3em}
@media print{.socks-general{width:1610px;zoom:.59}}

/* Question 1 feeds the unit margin row from the left of the scenario table. */
.socks-cases-layout{display:grid;grid-template-columns:300px 1280px;gap:30px;align-items:start;margin-top:96px}
.socks-general .socks-cases-layout .socks-cases{width:1280px;margin:0}
.socks-cases-layout .socks-cases col.socks-label-column{width:240px}
.socks-contribution-aside{padding-top:198px}
.socks-contribution-aside .socks-prompt-answer{width:300px;position:relative}
.socks-contribution-aside .socks-prompt-answer h4{position:absolute;bottom:100%;left:0;margin:0 0 12px}
.socks-contribution-aside .chief-calculation>strong{font-size:16px;white-space:nowrap}
.socks-contribution-aside .chief-calculation{padding-left:12px}
@media print{.socks-cases-layout{break-inside:avoid}.socks-contribution-aside .socks-prompt-answer{margin:0}.socks-contribution-aside .socks-prompt-answer .chief-calculation+.chief-calculation{margin-top:25px}}

.socks-cases-layout .socks-cases tr:not(.socks-difference-row)>td{padding-left:10px;padding-right:10px}

/* Keep the complete worksheet visible at its default 58% scale. */
.socks-general{width:1540px}
.socks-general-layout{grid-template-columns:850px 40px 600px}
.socks-general-layout .socks-model{width:850px}
.socks-required-formula .katex{font-size:1.29em}
.socks-cases-layout{grid-template-columns:270px 1240px}
.socks-general .socks-cases-layout .socks-cases{width:1240px}
.socks-cases-layout .socks-cases col.socks-label-column{width:210px}
.socks-contribution-aside .socks-prompt-answer{width:270px}
.socks-contribution-aside .chief-calculation>strong{font-size:15px}
@media print{.socks-general{width:1540px;zoom:.62}}

/* The unit margin is calculated in its cell; the ratio is derived beside the row. */
.socks-cases-layout{position:relative}
.socks-ratio-arrow{position:absolute;left:270px;top:214px;width:30px;height:34px;display:flex;align-items:center;justify-content:center;font-size:29px;line-height:1;color:#6a8c76}

/* Number the first answer consistently and connect the break-even revenue to its volume. */
.socks-contribution-aside .chief-calculation{border-left:0;padding-left:0}
.socks-contribution-aside .chief-calculation>strong{font-size:16px}
.socks-revenue-arrow{height:36px;display:flex;align-items:center;justify-content:center;color:#6a8c76;font-size:28px;line-height:1}
.socks-cases .socks-break-even-revenue{margin-top:0}

/* Bring the ratio up to the row equation and close to its connecting arrow. */
.socks-contribution-aside{padding-top:191.5px}
.socks-contribution-aside .chief-calculation{padding-right:10px;text-align:right}

/* Toyz: product margins feed a sales bundle, then the quantities in each scenario. */
.toyz-workbench{position:relative;width:1540px;max-width:none;color:#111}
.toyz-sheet{width:1000px;border-collapse:collapse;table-layout:fixed;font-family:Calibri,Arial,sans-serif;color:#111;line-height:1.45}
.toyz-sheet th,.toyz-sheet td{height:64px;padding:10px 12px;border:1px solid #b6b6b6;background:#fff;box-sizing:border-box;vertical-align:middle}
.toyz-sheet thead th{height:56px;background:#e2efda;text-align:center;font-size:19px;font-weight:700}
.toyz-sheet thead th:first-child{text-align:left}
.toyz-sheet tbody th{text-align:left;font-size:18px;white-space:normal;font-weight:400}
.toyz-sheet td{text-align:right;font-size:19px;font-variant-numeric:tabular-nums}
.toyz-equation{display:block;white-space:nowrap;font-size:18px;line-height:1.6}
.toyz-sheet .toyz-section th{height:46px;background:#f1f5ed;font-size:18px;font-weight:700}
.toyz-sheet .toyz-subtotal th{font-weight:700}
.toyz-sheet .toyz-subtotal td{border-top:2px solid #777}
.toyz-sheet [data-toyz-bundle="margin"] th,.toyz-sheet [data-toyz-bundle="margin"] td{font-weight:700;background:#eaf1e3;border-bottom:3px double #667e5d}
.toyz-case-layout{margin-top:80px}
.toyz-sheet .toyz-answer th{font-weight:700}
.toyz-sheet .toyz-answer td{background:#f8faf5}
.toyz-formula{position:absolute;left:1044px;top:775px;width:496px;margin:0;padding:0;color:#111}
.toyz-formula .latex-display{padding:0;overflow:visible}
.toyz-formula .katex-display{margin:0}
.toyz-formula .katex{font-size:1.12em}
.toyz-links{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none}
.toyz-workbench .working-given{color:#147d3f}
.toyz-workbench .working-result{color:#111}
@media print{.toyz-workbench{zoom:.62}.toyz-case-layout{break-inside:avoid}}

.shannon-workbench{position:relative;width:1660px;min-height:660px;max-width:none;color:#111}
.shannon-sheet{width:900px;border-collapse:collapse;table-layout:fixed;font-family:Calibri,Arial,sans-serif;color:#111;line-height:1.45}
.shannon-sheet caption{height:58px;box-sizing:border-box;text-align:left;padding:12px 0;font-size:22px;font-weight:700;white-space:nowrap}
.shannon-sheet th,.shannon-sheet td{height:84px;border:1px solid #b6b6b6;padding:10px 12px;background:#fff;vertical-align:middle;box-sizing:border-box}
.shannon-sheet thead th{height:60px;background:#e2efda;font-size:19px;text-align:center}
.shannon-sheet thead th:first-child{text-align:left}
.shannon-sheet tbody th{text-align:left;font-size:20px;font-weight:400}
.shannon-sheet td{text-align:right;font-size:20px;font-variant-numeric:tabular-nums}
.shannon-sheet tbody td:nth-child(2){text-align:center}
.shannon-sheet .shannon-subtotal th,.shannon-sheet .shannon-final th{font-weight:700}
.shannon-sheet .shannon-subtotal td{border-top:2px solid #777;background:#f5f8f0}
.shannon-sheet .shannon-final td{border-top:2px solid #222;border-bottom:4px double #222}
.shannon-workbench .shannon-equation{display:block;white-space:nowrap;font-size:20px;line-height:1.6}
.shannon-sheet td:nth-child(2) .shannon-equation{font-size:18px}
.shannon-calculation{margin:0;padding:0;border:0;line-height:1.5}
.shannon-calculation>strong{display:block;font-size:22px;font-weight:700;margin-bottom:7px}
.shannon-safety,.shannon-leverage,.shannon-decline{position:absolute;left:970px;width:570px;padding:0;border:0;color:#111}
.shannon-safety{top:48px;width:690px;display:grid;grid-template-columns:320px 310px;column-gap:56px;row-gap:30px}
.shannon-safety [data-shannon-answer="breakEven"]{grid-column:1 / -1}
.shannon-leverage{top:376px;width:320px}
.shannon-decline{top:376px;left:1346px;width:310px}
.shannon-workbench .working-given{color:#147d3f}
.shannon-workbench .working-result{color:#111}
.shannon-links{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none}
@media print{.shannon-workbench{zoom:.57;break-inside:avoid}}

.decision-workbench{color:#111;max-width:none}
.pricing-workbench{width:1540px}
.makebuy-workbench{width:1800px}
.gentry-workbench{width:max-content}
.gentry-layout{display:grid;grid-template-columns:830px max-content;column-gap:80px;align-items:start;width:max-content}
.gentry-sheet .decision-final td{position:relative}
.gentry-decision-link{position:absolute;left:calc(100% + 8px);top:50%;width:58px;border-top:2.2px solid #518469;pointer-events:none}
.gentry-decision-link:after{content:'';position:absolute;right:-1px;top:-5.5px;border-left:9px solid #518469;border-top:4.5px solid transparent;border-bottom:4.5px solid transparent}
.gentry-question-layout{display:grid;grid-template-columns:minmax(0,1fr) var(--gentry-answer-width,550px);column-gap:40px;align-items:start}
.gentry-question-image{position:relative;min-width:0}
.gentry-question-image .prompt-figure{margin:0!important;max-width:none}
.gentry-question-image figcaption{display:none}
.gentry-full-cost{margin-top:calc(var(--gentry-image-width,868px) * 1017 / 1470 - 16.5px);font-size:21px;line-height:1.55;white-space:normal;color:#111}
.gentry-full-cost h3{margin:0 0 8px;font-size:22px;line-height:33px}
.gentry-full-cost .decision-equation{display:block;white-space:nowrap;font-size:20px;line-height:1.65}
.gentry-full-cost .working-given{color:#147d3f}
.gentry-full-cost .working-result{color:#111}
/* Start after the first line of question 2 in the original 1470 × 1198 prompt. */
.gentry-question-connector{position:absolute;left:97.2%;right:-26px;top:84.8915%;border-top:2.2px solid #518469;pointer-events:none}
.gentry-question-connector:after{content:'';position:absolute;right:-1px;top:-5.5px;border-left:9px solid #518469;border-top:4.5px solid transparent;border-bottom:4.5px solid transparent}
.gentry-considerations{margin-top:294.3px;font-size:21px;line-height:1.4;white-space:normal}
.gentry-choice{margin:0 0 4px}
.gentry-considerations .gentry-condition{margin-bottom:16px}
.gentry-considerations h4{margin:0 0 7px;font-size:22px;font-weight:400}
.gentry-full-cost ul,.gentry-considerations ul{margin:0;padding-left:25px}
.gentry-full-cost li,.gentry-considerations li{margin:2px 0;line-height:1.25;font-weight:400}
.gentry-full-cost li b,.gentry-considerations li b{font-weight:400}
.gentry-considerations li{white-space:nowrap}
@media print{.gentry-question-layout{width:1458px;zoom:.57;break-inside:avoid}.gentry-question-image .prompt-image{max-height:none}.gentry-full-cost{print-color-adjust:exact;-webkit-print-color-adjust:exact}.decision-workbench.gentry-workbench{zoom:.52}}
.decision-sheet{width:100%;border-collapse:collapse;table-layout:fixed;font-family:Calibri,Arial,sans-serif;color:#111;line-height:1.45}
.decision-sheet th,.decision-sheet td{border:1px solid #b6b6b6;padding:12px 14px;height:66px;box-sizing:border-box;background:#fff;vertical-align:middle}
.decision-sheet thead th{background:#e2efda;font-size:22px;text-align:center;font-weight:700;height:78px}
.decision-sheet thead th:first-child{text-align:left}
.decision-sheet thead th span{display:block;font-size:18px;font-weight:400;margin-top:6px}
.decision-sheet tbody th{text-align:left;font-size:20px;font-weight:400}
.decision-sheet td{text-align:right;font-size:20px;font-variant-numeric:tabular-nums}
.decision-workbench .decision-equation{display:block;white-space:nowrap;font-size:20px;line-height:1.65}
.makebuy-workbench .decision-equation{font-size:20px}
.decision-sheet .decision-changed{background:#edf5fb}
.decision-sheet .decision-subtotal th,.decision-sheet .decision-final th,.decision-sheet .decision-threshold th{font-weight:700}
.decision-sheet .decision-subtotal td{border-top:2px solid #777;background:#f6f8f3}
.decision-sheet .decision-final td{border-top:2px solid #222;border-bottom:4px double #222;background:#f4f8ed}
.decision-sheet .decision-section th{height:42px;background:#f1f5ec;font-size:19px;font-weight:700}
.decision-choice{display:block;margin-top:8px;font-size:21px}
.decision-cell-note{display:block;font-size:17px;white-space:normal;margin-top:8px}
.decision-answer{margin:0 0 28px;font-size:22px;white-space:normal;line-height:1.6}
.decision-preparation{margin:0 0 32px;font-size:21px;line-height:1.6}
.decision-preparation>strong{display:block;font-size:21px;margin-bottom:7px}
.decision-assumptions{font-size:19px;line-height:1.6;margin:24px 0 26px;white-space:normal}
.decision-workbench .working-given{color:#147d3f}
.decision-workbench .working-result{color:#111}
@media print{.decision-workbench{zoom:.57;break-inside:avoid}.pricing-workbench{zoom:.61}}

.pricing-question-layout{position:relative;display:grid;grid-template-columns:minmax(0,1fr) 550px;column-gap:40px}
.pricing-question-image{position:relative;min-width:0}
.pricing-question-image .prompt-figure{margin:0!important;max-width:none}
.pricing-question-image figcaption{display:none}
.pricing-prompt-answer{position:absolute;left:calc(100% - 550px);top:calc(63.9472% - 16.5px);width:550px;color:#111;font-size:22px;line-height:1.5}
.pricing-prompt-answer>strong{display:block;font-size:22px;line-height:33px}
.pricing-prompt-answer>p{margin:8px 0 0;white-space:normal}
/* Anchor to the end of requirement 1 in the original 1470 × 1287 prompt. */
.pricing-question-connector{position:absolute;left:80.6122%;right:-26px;top:63.9472%;border-top:2.2px solid #518469;pointer-events:none}
.pricing-question-connector:after{content:'';position:absolute;right:-1px;top:-5.5px;border-left:9px solid #518469;border-top:4.5px solid transparent;border-bottom:4.5px solid transparent}
@media print{.pricing-question-layout{width:1397px;zoom:.61;break-inside:avoid}.pricing-question-image .prompt-image{max-height:none}.pricing-prompt-answer{print-color-adjust:exact;-webkit-print-color-adjust:exact}}

/* Eagle Products: compare the reported loss with fixed costs that remain. */
.eagle-workbench{width:1760px}
.eagle-layout{display:grid;grid-template-columns:1100px 580px;column-gap:80px;align-items:start}
.eagle-sheet [data-eagle-row="drop"] td{position:relative}
.eagle-sheet tbody th{white-space:nowrap}
.eagle-decision-link{position:absolute;left:calc(100% + 8px);top:50%;width:58px;border-top:2.2px solid #518469;pointer-events:none}
.eagle-decision-link:after{content:'';position:absolute;right:-1px;top:-5.5px;border-left:9px solid #518469;border-top:4.5px solid transparent;border-bottom:4.5px solid transparent}
.eagle-decision{margin-top:162.3px;font-size:21px;line-height:1.4;white-space:normal;color:#111}
.eagle-choice{margin:0 0 6px}
.eagle-decision ul{margin:0;padding-left:25px}
.eagle-decision li{margin:2px 0;line-height:1.25;font-weight:400}
@media print{.decision-workbench.eagle-workbench{zoom:.52}}

.eagle-composition{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 40px;width:1100px;margin:0 0 36px;padding:0;color:#0E0F12;font-family:Inter,Arial,sans-serif;font-size:21px;line-height:1.35;white-space:normal}
.eagle-composition h3{font-size:22px;line-height:1.4;margin:0 0 9px;letter-spacing:0}
.eagle-composition-item h3{display:flex;justify-content:space-between;gap:20px}
.eagle-composition-item+.eagle-composition-item{margin-top:0}
.eagle-cost-bar{display:grid;width:100%}
.eagle-cost-bar>div{display:flex;flex-direction:column;justify-content:center;gap:7px;min-width:0;padding:15px 12px;min-height:100px;box-sizing:border-box;text-align:center;white-space:nowrap}
.eagle-cost-bar span{font-size:21px}
.eagle-variable{background:rgba(43,143,255,.12);border-top:3px solid #2B8FFF}
.eagle-fixed{background:rgba(16,163,127,.12);border-top:3px solid #10A37F}
.eagle-composition .working-given{color:#147d3f}
.eagle-composition .working-result{color:#0E0F12}
.eagle-fixed-summary{grid-column:1 / -1;margin-top:0;display:flex;align-items:baseline;gap:16px;white-space:nowrap}
.eagle-fixed-summary h3{margin:0;flex:none}
.eagle-fixed-summary .decision-equation{font-size:20px;white-space:nowrap;line-height:1.6}
@media print{.eagle-cost-bar>div{print-color-adjust:exact;-webkit-print-color-adjust:exact}}

/* Annotations scale with the original prompt, including its enlarged view. */
.prompt-image-frame{display:block;position:relative}
.prompt-annotations{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.prompt-viewport.native-size .prompt-image-frame{width:var(--image-width);margin:0 auto}

/* ExcerTreads: one Deluxe and two Regular units use the same machine capacity. */
.excertreads-workbench{width:1860px}
.excertreads-layout{position:relative;display:grid;grid-template-columns:970px 810px;column-gap:80px;align-items:start}
.excertreads-sheet tbody th{white-space:nowrap}
.excertreads-sheet [data-excertreads-row="comparison"] td,.excertreads-sheet [data-excertreads-row="margin"] td{position:relative}
.excertreads-explanation{grid-column:2;margin-top:98px;font-size:21px;line-height:1.25;white-space:normal;color:#111}
.excertreads-choice{position:absolute;left:1050px;top:227px;font-size:22px;line-height:33px;white-space:nowrap}
.excertreads-decision-link,.excertreads-explanation-link{position:absolute;left:calc(100% + 8px);top:50%;width:58px;border-top:2.2px solid #518469;pointer-events:none}
.excertreads-decision-link:after,.excertreads-explanation-link:after{content:'';position:absolute;right:-1px;top:-5.5px;border-left:9px solid #518469;border-top:4.5px solid transparent;border-bottom:4.5px solid transparent}
@media print{.decision-workbench.excertreads-workbench{zoom:.55}}

/* TechSystems: the three independent conditions share one MAKE / BUY comparison. */
.techsystems-sheet{width:1680px}
.techsystems-maximum h3{margin:0;font-size:22px;line-height:1.4}
.techsystems-sheet th,.techsystems-sheet td{height:82px}
.techsystems-sheet thead th,.techsystems-sheet thead th:first-child{text-align:center}
.techsystems-sheet .techsystems-row-label{text-align:center;font-weight:700;white-space:nowrap}
.techsystems-sheet tr > .techsystems-label-spacer{border:0;background:transparent}
.techsystems-sheet .decision-final td{text-align:center;position:relative}
.techsystems-maximum-link{position:absolute;left:50%;top:calc(100% + 8px);height:34px;border-left:2.2px solid #518469;pointer-events:none}
.techsystems-maximum-link:after{content:'';position:absolute;left:-5.6px;bottom:-1px;border-top:9px solid #518469;border-left:4.5px solid transparent;border-right:4.5px solid transparent}
.techsystems-maximum{margin:54px 0 0 751px;width:max-content;display:flex;align-items:baseline;gap:16px;white-space:nowrap}
.techsystems-maximum>*,.techsystems-maximum h3{flex:none;margin:0}
.techsystems-maximum p{margin:0;font-size:19px;line-height:1.3;font-weight:400;white-space:nowrap}
@media print{.decision-workbench.makebuy-workbench{zoom:.51}}

.techsystems-decision{display:flex;align-items:baseline;justify-content:center;gap:10px;white-space:nowrap}
.techsystems-comparison-sign{font-size:24px;font-weight:700;line-height:1}
.techsystems-choice-arrow{font-size:22px}
.techsystems-excluded-cost{display:inline-block;position:relative;white-space:nowrap}
.techsystems-excluded-cost svg{position:absolute;left:-2px;top:50%;width:calc(100% + 4px);height:1.3em;transform:translateY(-50%);overflow:visible;pointer-events:none}
.techsystems-excluded-cost path{fill:none;stroke:#d32f2f;stroke-width:2.5;stroke-linecap:round;vector-effect:non-scaling-stroke}

/* Session 1 textual answers follow the question order in a single readable list. */
.working-flow[data-answer-layout="vertical"] .working-canvas-node{width:var(--qualitative-answer-width);min-width:0;padding:0;border:0;border-radius:0}
.excertreads-explanation,
.working-flow[data-answer-layout="vertical"] .qualitative-answers{font-family:'DM Sans',sans-serif;font-size:21px;line-height:1.25;font-weight:400;letter-spacing:normal;color:#111}
.working-flow[data-answer-layout="vertical"] .working-canvas-node .answer-part{display:grid;grid-template-columns:max-content minmax(0,1fr);gap:14px;margin:0 0 20px}
.working-flow[data-answer-layout="vertical"] .working-canvas-node .answer-part.no-label{display:block}
.working-flow[data-answer-layout="vertical"] .working-canvas-node .answer-part:last-child{margin-bottom:0}
.working-flow[data-answer-layout="vertical"] .working-canvas-node .answer-copy,
.working-flow[data-answer-layout="vertical"] .working-canvas-node .answer-label,
.working-flow[data-answer-layout="vertical"] .working-canvas-node .working-calculation{font-family:inherit;font-size:21px;line-height:1.25}
.working-flow[data-answer-layout="vertical"] .working-canvas-node .working-line{white-space:normal;overflow-wrap:break-word}
.working-flow[data-answer-layout="vertical"] .working-canvas-node .answer-copy>p{margin:0}
.working-flow[data-answer-layout="vertical"] .working-canvas-node .answer-copy>p+p{margin-top:14px}
.working-flow[data-answer-layout="vertical"] .working-canvas-node .answer-copy>.answer-parts{margin-top:0}
.working-flow[data-answer-layout="vertical"] .working-canvas-node .answer-part-title{font-size:21px;line-height:1.25;margin-bottom:16px}
.working-flow[data-answer-layout="vertical"] .working-canvas-node .answer-part.answer-group{display:block;margin-bottom:32px}
.working-flow[data-answer-layout="vertical"] .working-canvas-node .answer-group>.answer-label{display:block;margin-bottom:12px}
.working-flow[data-answer-layout="vertical"] .working-canvas-node:has(.answer-nowrap){min-width:min-content}
.working-flow[data-answer-layout="vertical"] .working-canvas-node .answer-nowrap{grid-template-columns:max-content max-content}
.working-flow[data-answer-layout="vertical"] .working-canvas-node .answer-nowrap .working-line{white-space:nowrap}

/* Related source appendices share a row while retaining their original images. */
.prompt-image-row{display:flex;align-items:flex-start;gap:24px;margin:0 0 18px}
.prompt-image-row>.prompt-figure{flex:1;min-width:0;margin:0}
.working-canvas-prompt .prompt-image-row>.prompt-figure{width:0;margin:0}

.working-flow[data-answer-layout="vertical"] .answer-bullets{margin:0 0 16px;padding-left:26px;list-style:disc}
.working-flow[data-answer-layout="vertical"] .answer-bullets>li{margin:0 0 6px;padding:0;font-size:inherit;line-height:inherit}

.working-flow[data-answer-layout="vertical"] .answer-prompt-figure{width:724px;max-width:100%;margin:18px 0 28px;border:0}
.working-flow[data-answer-layout="vertical"] .answer-prompt-figure .prompt-image{width:100%;height:auto;max-height:none}

.working-flow[data-answer-layout="vertical"] .working-canvas-node:has(.answer-wide){width:var(--qualitative-available-width)}
.working-flow[data-answer-layout="vertical"] .working-canvas-node:has(.answer-wide)>.working-canvas-content>.qualitative-answers>.answer-parts>.answer-part:not(.answer-wide){max-width:var(--qualitative-answer-width)}

.working-flow[data-answer-layout="vertical"] .working-canvas-node .answer-wide{padding-right:200px}
.working-flow[data-answer-layout="vertical"] .answer-align-margin .compact-prompt-section>ol{list-style:none;padding:0;counter-reset:freshfusion-question}
.working-flow[data-answer-layout="vertical"] .answer-align-margin .compact-prompt-section>ol>li{display:grid;grid-template-columns:24px minmax(0,1fr);gap:14px;padding:0;counter-increment:freshfusion-question}
.answer-align-margin .compact-prompt-section>ol>li:before{content:counter(freshfusion-question)'.'}

.prompt-crop{display:block;position:relative;overflow:hidden;max-width:100%}
.prompt-crop>.prompt-image{position:absolute;max-width:none!important;max-height:none!important;height:auto!important;margin:0}

/* Six theory exercises share one continuous sheet and one zoom control. */
.working-flow[data-exercise-sheet] .working-canvas-window{overscroll-behavior:auto}
@media print{
 .session-one-print .working-exercise-pair{display:grid;grid-template-columns:46% 1fr;column-gap:5%;margin:0 0 36px;break-inside:avoid}
 .session-one-print .qualitative-answers,.session-one-print .answer-copy,.session-one-print .working-calculation{font-size:12px;line-height:1.3}
 .session-one-print .answer-part{display:grid;grid-template-columns:max-content 1fr;gap:8px;margin:0 0 9px}
 .session-one-print .answer-copy p{margin:0}
}

/* Compact transcriptions keep every question while removing writing lines. */
.working-flow[data-answer-layout="vertical"] .compact-prompt{font-family:"Times New Roman",serif;font-size:18px;line-height:1.3;color:#000;font-weight:400;letter-spacing:normal}
.compact-prompt-section+.compact-prompt-section{margin-top:20px}
.compact-prompt-heading{border:1px solid #111;padding:3px 6px;font-size:19px;font-weight:700;line-height:1.2}
.compact-prompt-heading-sans{font-family:Arial,sans-serif;font-size:18px}
.compact-prompt-heading-plain{border:0;padding:0}
.compact-prompt-section>p{margin:12px 6px 8px}
.compact-prompt-section>ol{list-style:decimal;margin:0;padding:0 10px 0 58px}
.compact-prompt-section>ol>li{padding-left:6px;margin:0 0 6px;font-size:inherit;line-height:1.3}
.compact-prompt-section>ol>li:last-child{margin-bottom:0}

/* Completed statements remain single lines, with red answers in black sentences. */
.prompt-fill-lines{width:max-content;min-width:100%;margin:20px 0 0;font-family:'DM Sans',sans-serif;font-size:21px;line-height:1.25;letter-spacing:normal;color:#111;font-weight:400;text-align:left}
.prompt-fill-line{display:grid;grid-template-columns:calc(28px * var(--filled-prompt-scale,.448)) max-content;column-gap:calc(28px * var(--filled-prompt-scale,.448));margin:0 0 12px}
.prompt-fill-line:last-child{margin-bottom:0}
.prompt-fill-sentence{white-space:nowrap}
.prompt-fill-answer{color:#c42222;font-weight:400}

/* The FreshFusion introduction is readable, selectable text. */
.prompt-introduction{width:100%;max-width:100%;margin:0 0 42px;font-family:var(--exercise-answer-font);font-size:var(--exercise-answer-size);line-height:1.3;font-weight:400;letter-spacing:normal;color:#111;text-align:left}
.prompt-introduction h2{margin:0 0 22px;font-family:inherit;font-size:inherit;line-height:1.3;font-weight:700;letter-spacing:normal}
.prompt-introduction h3{margin:0 0 12px;font-family:inherit;font-size:inherit;line-height:1.3;font-weight:700;letter-spacing:normal}
.prompt-introduction>p{margin:0 0 1.3em;font-size:inherit;line-height:inherit}
.prompt-introduction-callout{margin-top:22px}
.prompt-introduction-callout h3{font-size:inherit}
.prompt-introduction-callout p{margin:0;font-size:inherit;line-height:inherit}

/* Screenshot text uses one body-glyph scale, independent of source dimensions. */
.prompt-figure[data-text-normalized],.answer-prompt-figure[data-text-normalized]{max-width:none!important}
[data-text-normalized] .prompt-image{max-height:none!important}
.prompt-replacement-heading{display:block;text-align:left;font-family:Arial,sans-serif;font-size:calc(35px * var(--prompt-pixel-scale,1));line-height:1.25;font-weight:400;color:#111;margin:0 0 calc(12px * var(--prompt-pixel-scale,1));padding-left:calc(32px * var(--prompt-pixel-scale,1))}
.prompt-fill-lines{margin-left:calc(87.6px * var(--filled-prompt-scale,.448));min-width:0}

/* Keep FreshFusion Part 3 questions beside their response on the same sheet. */
.working-flow[data-answer-layout="vertical"] .working-canvas-node .answer-part.answer-prompt-beside{display:grid;grid-template-columns:var(--answer-prompt-width,640px) minmax(0,1fr);column-gap:24px;align-items:start}
.working-flow[data-answer-layout="vertical"] .answer-prompt-side>.answer-prompt-figure{margin:0}
.answer-response-side{min-width:0}
.working-flow[data-answer-layout="vertical"] .answer-response-side>.answer-label{display:block;margin:0 0 12px}

.prompt-replacement-title{display:block;margin:0 0 calc(35px * var(--prompt-pixel-scale,1));padding:calc(5px * var(--prompt-pixel-scale,1)) calc(12px * var(--prompt-pixel-scale,1));border:1px solid #111;text-align:left;font-family:Arial,sans-serif;font-size:calc(35px * var(--prompt-pixel-scale,1));line-height:1.25;font-weight:700;color:#111}

/* Exercise responses share the font and apparent body-text size of their prompts. */
.working-flow{--exercise-answer-size:16.13px;--exercise-answer-font:'AMG Exercise Calibri',Calibri,Arial,sans-serif}
:is(.working-canvas-node,.working-flow>.qualitative-answers,.working-flow>.numbered-answers,.working-flow>.solution-steps,.working-canvas-prompt .gentry-full-cost,.working-canvas-prompt .pricing-prompt-answer,.working-canvas-prompt .socks-prompt-answer,.working-canvas-prompt .prompt-fill-lines){font-family:var(--exercise-answer-font)!important;font-size:var(--exercise-answer-size)!important;line-height:1.3!important;letter-spacing:normal!important}
:is(.working-canvas-node,.working-flow>.qualitative-answers,.working-flow>.numbered-answers,.working-flow>.solution-steps,.working-canvas-prompt .gentry-full-cost,.working-canvas-prompt .pricing-prompt-answer,.working-canvas-prompt .socks-prompt-answer,.working-canvas-prompt .prompt-fill-lines) :is(p,li,ul,ol,th,td,caption,h2,h3,h4,h5,span,strong,b,em,mark,small,a,div,section,aside):not(.katex):not(.katex *):not(.katex-display):not(.answer-prompt-figure):not(.answer-prompt-figure *):not([aria-hidden="true"]):not([aria-hidden="true"] *){font-family:var(--exercise-answer-font)!important;font-size:var(--exercise-answer-size)!important;line-height:1.3!important;letter-spacing:normal!important}
.working-flow .working-canvas-node .katex{font-size:1em}
.example-content>:is(.table-wrap,.exercise-decision,.exercise-notes),.lesson-example-solution>:is(.table-wrap,.exercise-decision,.exercise-notes),.garnier-part>:is(.table-wrap,.exercise-decision,.exercise-notes){font-family:'AMG Exercise Calibri',Calibri,Arial,sans-serif;font-size:var(--exercise-answer-screen-size,9.36px)}
:is(.example-content,.lesson-example-solution,.garnier-part)>:is(.table-wrap,.exercise-decision,.exercise-notes) :is(p,li,td,th,caption,h3,span,b,strong,mark){font-family:'AMG Exercise Calibri',Calibri,Arial,sans-serif!important;font-size:var(--exercise-answer-screen-size,9.36px)!important;line-height:1.3!important}
@media print{
 .working-flow{--exercise-answer-size:11px!important}
 .working-flow :is(.qualitative-answers,.numbered-answers,.solution-steps){--exercise-answer-size:11px}
}

.working-flow[data-answer-layout="vertical"] .working-canvas-node .answer-wide.answer-fill-right{padding-right:24px}

/* Browse source appendices one document at a time. */
.appendix-slideshow{max-width:none;margin:0 auto}
.appendix-slideshow-controls{display:flex;justify-content:center;align-items:center;gap:16px;margin-bottom:18px;font:16px/1.3 var(--exercise-answer-font)}
.appendix-slideshow-controls button{width:46px;height:38px;padding:0;background:white;border:1px solid #cdd8cf;border-radius:4px;font-size:24px;cursor:pointer;color:#315c4b}
.appendix-slideshow-controls button:disabled{opacity:.3;cursor:default}
.appendix-slide{display:flex;justify-content:center}
.appendix-slide[hidden]{display:none!important}
.appendix-slide .prompt-figure{margin:0!important}
/* Each reflection answer follows the exact question linked by its arrow. */
.working-flow[data-answer-layout="vertical"] .working-canvas-node .answer-part.reflection-linked{display:block}
.reflection-pairs{display:grid;grid-template-columns:724px 56px minmax(0,1fr);gap:18px 16px;align-items:center}
.reflection-prompt-heading{grid-column:1;align-self:start}
.reflection-answer-heading{grid-column:3;align-self:start}
.working-flow[data-answer-layout="vertical"] .reflection-pairs .answer-prompt-figure{width:auto;max-width:none;margin:0}
.reflection-question{display:grid;grid-template-columns:34px minmax(0,1fr);gap:6px;padding-left:38px}
.reflection-answer-arrow{display:block;width:56px;height:16px}
.reflection-answer{display:grid;grid-template-columns:28px minmax(0,1fr);column-gap:10px}
.reflection-answer p{margin:0}
/* Reuse the role names in the original image, with straight links to the answers. */
.role-linked{position:relative}
.role-answer-column{position:relative;align-self:stretch}
.role-answer{position:absolute;left:0;width:100%}
.role-recommendation{position:absolute;left:0;width:max-content;max-width:none;margin:0;white-space:nowrap}
.role-answer-arrows{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none;z-index:3}

/* FreshFusion: whitespace separates the compact role and question rows. */
.working-flow[data-answer-layout="vertical"] .working-canvas-node .answer-part.freshfusion-designed-section{display:block;margin:0 0 42px}
.working-flow[data-answer-layout="vertical"] .freshfusion-designed-section .answer-prompt-figure{width:auto;max-width:none;margin:0}
.workshop-heading{padding:0;font:700 calc(var(--exercise-answer-size) * .9428125)/1.25 Arial,sans-serif;color:#111}
.workshop-columns{width:min(950px,100%);margin-top:12px}
.workshop-role-head,.workshop-role-row{display:grid;grid-template-columns:220px 36px minmax(0,1fr);column-gap:16px;align-items:center}
.workshop-role-head{padding:0 0 10px;color:#111}
.workshop-role-row{min-height:36px;padding:8px 0}
.freshfusion-short-arrow{display:block;width:36px;height:16px;flex:none}
.workshop-recommendation{margin:24px 0 0;padding:0;white-space:nowrap}
.reflection-section-header{padding-bottom:12px}
.freshfusion-source-title{font-family:"Times New Roman",serif;font-size:19px;line-height:1.2;font-weight:700}
.reflection-source-heading>p,.definition-source-heading>p{margin:8px 0 0}
.reflection-rows{display:grid;grid-template-columns:max-content 36px minmax(0,1fr);column-gap:20px;align-items:center}
.reflection-pair{display:contents}
.reflection-question-link{display:contents}
.reflection-question-link>.reflection-question{flex:none;max-width:600px}
.reflection-question-arrow{position:relative;display:block;width:36px;height:16px}
.reflection-question-arrow:before{content:'';position:absolute;left:0;right:7px;top:7px;border-top:1.6px solid #518469}
.reflection-question-arrow:after{content:'';position:absolute;right:0;top:3px;border-left:8px solid #518469;border-top:4px solid transparent;border-bottom:4px solid transparent}
.reflection-redesigned .reflection-question{grid-template-columns:34px minmax(0,1fr);padding:8px 0;gap:6px}
.reflection-redesigned .reflection-answer{grid-template-columns:28px minmax(0,1fr);gap:10px;padding:8px 0}
.reflection-redesigned .reflection-answer.reflection-answer-unnumbered{grid-template-columns:minmax(0,1fr)}
.reflection-redesigned .reflection-answer p{margin:0}
.reflection-question mark.answer-highlight{font-weight:400}
.definition-source-heading{padding-bottom:12px}
.definition-pair{display:grid;grid-template-columns:max-content 36px minmax(0,1fr);gap:20px;align-items:center;padding:18px 0 0}
.definition-pair p{margin:0}
.appendix-slide-track{overflow:hidden}

/* Information cards follow the same compact, borderless question → answer layout. */
.information-cards-introduction{margin:0}
.information-cards-introduction h2{font:700 calc(var(--exercise-answer-size) * .9428125)/1.25 Arial,sans-serif;margin:0 0 12px}
.information-cards-introduction p{font-family:'AMG Exercise Calibri',Calibri,Arial,sans-serif;font-size:var(--exercise-answer-size);line-height:1.3;margin:0}
.working-flow[data-answer-layout="vertical"] .working-canvas-node .answer-part.information-cards-sheet{display:grid;grid-template-columns:max-content 36px minmax(0,1fr);gap:0 20px;align-items:center}
.information-card-row,.information-card-question-link{display:contents}
.information-card-question{display:grid;grid-template-columns:28px max-content;gap:10px;padding:8px 0}
.information-card-answer{padding:8px 0}
.information-card-group{grid-column:1/-1;padding:20px 0 8px;font-weight:700}
.information-card-arrow{position:relative;display:block;width:36px;height:16px}
.information-card-arrow:before{content:'';position:absolute;left:0;right:7px;top:7px;border-top:1.6px solid #518469}
.information-card-arrow:after{content:'';position:absolute;right:0;top:3px;border-left:8px solid #518469;border-top:4px solid transparent;border-bottom:4px solid transparent}

.working-flow[data-answer-layout="vertical"] .working-canvas-node .answer-part.embedded-card-exercise{display:block;margin:32px 0 42px}
.working-flow[data-answer-layout="vertical"] .embedded-card-exercise>.information-cards-introduction{width:auto;max-width:none;margin:0 0 20px}

/* Native questions use the same embedded font and body size as the solutions. */
.working-flow :is(.answer-prompt-figure,.prompt-introduction,.prompt-fill-lines,.prompt-replacement-title,.prompt-replacement-heading),
.working-flow :is(.answer-prompt-figure,.prompt-introduction,.prompt-fill-lines,.prompt-replacement-title,.prompt-replacement-heading) :is(p,li,ul,ol,th,td,caption,h2,h3,h4,h5,span,strong,b,em,mark,small,a,div,section,aside):not(.katex):not(.katex *){font-family:var(--exercise-answer-font)!important;font-size:var(--exercise-answer-size)!important;line-height:1.3!important;letter-spacing:normal!important}
.exercise-reference-tables,
.exercise-reference-tables :is(p,li,td,th,caption,h2,h3,span,b,strong,mark,small,button,a,div,section):not(.katex):not(.katex *){font-family:'AMG Exercise Calibri',Calibri,Arial,sans-serif!important}

/* The ledger supplies each item name; side calculations sit directly by their arrows. */
:is(.chief-side-calculations,.turtles-side,.golden-side) .chief-calculation{border-left:0;padding-left:0}
:is(.chief-method-left,.turtles-side-left,.golden-side-left) .chief-calculation-slot{justify-content:flex-end;padding-right:44px}
:is(.chief-method-right,.turtles-side-right,.golden-side-right) .chief-calculation-slot{padding-left:44px}

/* Read the original question first, then compare current and forecast costs. */
.soda-comparison{width:max-content;min-width:1520px}
.soda-sheet{width:1520px;border-collapse:collapse;table-layout:fixed;color:#111;font-variant-numeric:tabular-nums}
.soda-sheet th,.soda-sheet td{padding:18px 20px;border:1px solid #b6b6b6;text-align:left;vertical-align:middle;white-space:nowrap}
.soda-sheet thead th{background:#e2efda;font-weight:700}
.soda-sheet thead th>span{display:block;margin-top:4px;font-weight:400}
.soda-sheet tbody th{background:#f3f6ef;font-weight:400}
.soda-sheet td{height:100px}
.soda-question{display:inline-block;min-width:30px;margin-right:8px}
.soda-equation{white-space:nowrap}
.soda-capacity-note{margin:28px 0 0;width:max-content;max-width:none;white-space:nowrap}
@media print{.chief-method{gap:22px}.soda-comparison,.soda-sheet{width:100%}.soda-sheet th,.soda-sheet td{white-space:normal;padding:8px}.soda-sheet col{width:auto!important}}

/* The seventh answer starts beside its question, in the blank end of the prompt. */
.soda-question-layout{display:grid;grid-template-columns:calc(var(--soda-image-width,852px) * 1100 / 1470) max-content;align-items:start;width:max-content}
.soda-question-image{position:relative;grid-column:1/-1;grid-row:1;width:var(--soda-image-width,852px)}
.soda-question-image .prompt-figure{margin:0!important;max-width:none}
.soda-question-image figcaption{display:none}
.soda-prompt-answer{grid-column:2;grid-row:1;position:relative;width:max-content;white-space:nowrap;margin-top:calc(var(--soda-image-width,852px) * 503 / 1470);color:#111}
.soda-prompt-answer,.soda-prompt-answer :is(p,mark,span,b,strong){font-family:var(--exercise-answer-font)!important;font-size:var(--exercise-answer-size)!important;line-height:1.3!important;letter-spacing:normal!important}
.soda-prompt-answer p{margin:0 0 6px}
.soda-prompt-answer p:last-child{margin-bottom:0}
.soda-question-connector{position:absolute;left:65.9864%;right:calc(25.1701% + 12px);top:93.1655%;border-top:1.6px solid #518469;pointer-events:none}
.soda-question-connector:after{content:'';position:absolute;right:-1px;top:-4.8px;border-left:8px solid #518469;border-top:4px solid transparent;border-bottom:4px solid transparent}
@media print{.soda-question-layout{width:1520px;zoom:.57;break-inside:avoid}}

/* Exercise algorithms: target → numbered working → highlighted answer. */
.algorithm-sheet{--method-accent:#315c4b;--method-highlight:#f4e8a0;--method-rail:#cbd8cf;background:#fff;border:1px solid #d6dfd8;border-radius:12px;padding:24px;color:#243a31;overflow-wrap:anywhere;font-size:15px;line-height:1.6}
.method-target{border-bottom:1px solid #dce3dc;padding-bottom:18px;margin-bottom:0}
.method-kicker{display:block;font-size:11px!important;line-height:1.5!important;font-weight:750;letter-spacing:1.3px;text-transform:uppercase;color:#506354;margin:0 0 9px!important}
.method-targets{display:flex;flex-wrap:wrap;gap:8px 12px;align-items:baseline}
.method-targets mark{display:inline;font-size:16px;font-weight:700;line-height:1.65;color:#233a2d;background:#f4e8a0;padding:1px 6px;border-radius:3px;box-decoration-break:clone;-webkit-box-decoration-break:clone}
.method-data{border-bottom:1px solid #e2e8e2;margin:0 0 25px;padding:11px 0;font-size:13px;color:#53645a}
.method-data>summary{font-size:13px;font-weight:550;cursor:pointer;padding:0;line-height:1.6;color:#52645a}
.method-data>p{font-size:13px;line-height:1.7;margin:12px 0 9px}
.method-data>ul{display:flex;gap:5px 18px;flex-wrap:wrap;padding:0;margin:0;list-style:none}
.method-data>ul>li{font-size:12px;margin:0;padding:0}
.method-data>ul>li:before{content:'· ';color:#74907b}
.algorithm-sheet .method-flow{list-style:none;margin:0;padding:0;counter-reset:none}
.algorithm-sheet .method-step{display:grid;grid-template-columns:32px minmax(0,1fr);gap:15px;position:relative;list-style:none;padding:0 0 28px;margin:0;isolation:isolate}
.algorithm-sheet .method-step:last-child{padding-bottom:0}
.method-step-number{display:grid;place-items:center;align-self:start;background:#315c4b;color:#fff;border-radius:50%;width:32px;height:32px;font-size:12px;font-weight:700;line-height:1;font-variant-numeric:tabular-nums;z-index:1}
.method-step:not(:last-child):before{content:'';position:absolute;left:15px;top:36px;bottom:5px;border-left:1px solid var(--method-rail);z-index:-1}
.method-step:not(:last-child):after{content:'';position:absolute;left:12px;bottom:5px;width:6px;height:6px;border-right:1px solid #8ba492;border-bottom:1px solid #8ba492;transform:rotate(45deg)}
.method-step-body{min-width:0;padding-top:3px}
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.method-operator{font-size:17px;font-weight:600;color:#52685a;text-align:center;font-variant-numeric:tabular-nums}
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.algorithm-sheet .method-note{font-size:13px!important;line-height:1.65!important;font-weight:400;color:#607065;margin:9px 0 0!important}
.algorithm-sheet .method-rule-text{font-size:15px;line-height:1.7;font-weight:500;margin:0;white-space:pre-line}
.method-conditions{display:flex;flex-direction:column;border-top:1px solid #e0e6e0}
.method-condition-row{display:grid;grid-template-columns:minmax(100px,.85fr) 24px minmax(0,1.4fr);align-items:baseline;gap:10px;padding:10px 0;border-bottom:1px solid #e0e6e0;font-size:14px;line-height:1.65}
.method-condition{font-weight:600;color:#485f50}
.method-then{font-size:19px;color:#6b8976;text-align:center;font-weight:500}
.method-action mark{font-weight:700;color:#233a2d;background:linear-gradient(transparent 48%,#f4e8a0 48%);padding:0 2px;box-decoration-break:clone;-webkit-box-decoration-break:clone}
.method-action .method-note{margin-top:5px!important}
.method-paths{display:flex;flex-direction:column;gap:19px}
.method-path{border-left:2px solid #cfddd2;padding:0 0 0 14px;min-width:0}
.algorithm-sheet .method-path-label{font-size:12px;line-height:1.6;font-weight:750;color:#536d5a;letter-spacing:.4px;margin:0 0 12px}
.algorithm-sheet .method-flow-nested>.method-step{grid-template-columns:14px minmax(0,1fr);gap:8px;padding-bottom:17px}
.method-flow-nested>.method-step>.method-step-number{width:14px;height:24px;line-height:1;color:#87a18e;font-size:16px;background:none;border-radius:0}
.method-flow-nested>.method-step:before,.method-flow-nested>.method-step:after{display:none}
.algorithm-sheet .method-flow-nested .method-label{font-size:13px;margin-bottom:8px}
.method-flow-nested .method-path{padding-left:10px}
.method-details .example-content{padding-top:12px}
.method-details .steps{padding-left:0;list-style:none}
.method-details .steps>li{padding-left:0;margin:0}
.method-details .detail-layout{grid-template-columns:minmax(0,1fr)}
.method-details .detail-layout>aside{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.result.exercise-answer,.lesson .result.exercise-answer{background:#f6edb9;border:1px solid #decd7e;border-left:4px solid #aa8723;border-radius:0 8px 8px 0;padding:17px 20px;margin:22px 0 0;font-size:15px;line-height:1.75;break-inside:avoid}
.exercise-answer .method-kicker{color:#75601f}
.exercise-answer>p{font-size:15px;line-height:1.75;font-weight:650;color:#2e3827;margin:0}
/* The same visual vocabulary, kept compact in the continuous Garnier cases. */
.garnier-mini-algorithm{background:#fff;border:1px solid #d6dfd8;border-radius:10px;margin:20px 0 24px;padding:20px 22px;color:#243a31;overflow-wrap:anywhere}
.garnier-mini-algorithm .method-target{padding-bottom:15px;margin-bottom:15px}
.garnier-mini-algorithm .method-targets mark{font-size:15px}
.garnier-mini-algorithm h5{font-size:11px;line-height:1.5;font-weight:700;letter-spacing:1.1px;color:#536756;margin:0 0 15px}
.garnier-mini-algorithm .compact-method-flow{padding:0;margin:0;list-style:none;counter-reset:compact-step}
.garnier-mini-algorithm .compact-method-flow>li{position:relative;counter-increment:compact-step;padding:0 0 0 37px;margin:0;font-size:15px;line-height:1.75;color:#3e5547}
.garnier-mini-algorithm .compact-method-flow>li+li{margin-top:23px}
.garnier-mini-algorithm .compact-method-flow>li:before{content:counter(compact-step,decimal-leading-zero);position:absolute;top:0;left:0;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;background:#315c4b;color:#fff;font-size:10px;font-weight:700}
.garnier-mini-algorithm .compact-method-flow>li+li:after{content:'↓';position:absolute;top:-23px;left:9px;color:#789581;font-size:15px;line-height:22px}
.compact-method-flow mark{background:#f4e8a0;color:#233a2d;padding:1px 4px;border-radius:2px;font-weight:700;box-decoration-break:clone;-webkit-box-decoration-break:clone}
.compact-equals{color:#6d8473;font-weight:650}
@media(max-width:620px){
 .algorithm-sheet{padding:18px 14px;font-size:14px}
 .method-targets{gap:7px}
 .method-targets mark{font-size:15px}
 .algorithm-sheet .method-step{grid-template-columns:27px minmax(0,1fr);gap:10px;padding-bottom:24px}
 .method-step-number{width:27px;height:27px;font-size:10px}
 .method-step:not(:last-child):before{left:13px;top:31px}
 .method-step:not(:last-child):after{left:10px}
 .method-arithmetic,.method-calculated mark,.algorithm-sheet .method-rule-text{font-size:14px}
 .method-condition-row{grid-template-columns:minmax(0,1fr);gap:3px;padding:12px 0}
 .method-then{display:none}
 .method-action{position:relative;padding-left:23px}
 .method-action:before{content:'↳';position:absolute;left:0;top:0;color:#789581;font-size:17px}
 .method-path{padding-left:10px}
 .algorithm-sheet .method-flow-nested>.method-step{gap:5px}
 .method-details .detail-layout>aside{grid-template-columns:1fr}
 .result.exercise-answer,.lesson .result.exercise-answer{padding:15px}
 .exercise-answer>p{font-size:14px}
 .garnier-mini-algorithm{padding:17px 14px}
 .garnier-mini-algorithm .compact-method-flow>li{font-size:14px;padding-left:35px}
}
@media print{
 .algorithm-sheet{border:0;padding:12px 0;border-radius:0}
 .algorithm-sheet,.garnier-mini-algorithm,.exercise-answer{-webkit-print-color-adjust:exact;print-color-adjust:exact}
 .method-target{break-inside:avoid;break-after:avoid}
 .method-targets mark{font-size:12px}
 .method-data{font-size:10px;margin-bottom:18px}
 .algorithm-sheet .method-step{padding-bottom:18px}
 .method-arithmetic,.method-calculated mark,.algorithm-sheet .method-rule-text,.method-condition-row{font-size:11px}
 .algorithm-sheet .method-label{font-size:11px}
 .algorithm-sheet .method-note{font-size:10px!important}
 .method-calculation,.method-rule,.method-condition-row{break-inside:avoid}
 .method-details{display:none}
 .garnier-mini-algorithm{break-inside:auto}
 .garnier-mini-algorithm .compact-method-flow>li,.exercise-answer>p{font-size:11px;break-inside:avoid}
 .garnier-mini-algorithm .method-targets mark{font-size:12px}
}
@media print{.method-data>summary{display:none}.method-data>*:not(summary){display:block!important}.method-data>ul{display:flex!important}}
/* Highlight the answer in its working; do not repeat it in a closing recap. */
.answer-highlight{background:#f4e8a0;color:#233a2d;padding:1px 3px;font-weight:700;border-radius:2px;box-decoration-break:clone;-webkit-box-decoration-break:clone}
.exercise-decision{font-size:15px;line-height:1.75;margin:17px 0 0}
@media print{.answer-highlight{-webkit-print-color-adjust:exact;print-color-adjust:exact}}

.calculation-maps{--map-green:#e2efda;--map-yellow:#ffed94;--map-blue:#e4edf5;--map-border:#cdd5ce;max-width:1120px;margin:0 auto}
.map-page-header{margin-bottom:25px}.map-page-header .eyebrow{margin-bottom:10px}.map-page-header h1{font-size:36px;letter-spacing:-1.2px}.map-page-header>p:last-child{font-size:14px;color:#637167;margin-top:13px;max-width:700px}
.map-journey{display:flex;align-items:stretch;position:sticky;top:0;z-index:15;background:var(--paper);border-top:1px solid var(--map-border);border-bottom:1px solid var(--map-border);padding:10px 0;margin-bottom:30px;gap:5px}.map-journey a{display:flex;flex:1;flex-direction:column;justify-content:center;gap:5px;min-width:0;padding:9px 7px;border-radius:5px;font-size:12px;line-height:1.4;text-decoration:none}.map-journey small{font-size:10px;color:#78887e}.map-journey a[aria-current]{background:#dce9df;color:#234c3a;font-weight:700}.map-journey-arrow{align-self:center;font-size:15px;color:#8a9e8e}.map-mobile-journey{display:none}
.map-board-header{display:flex;gap:17px;align-items:flex-start;margin-bottom:22px}.map-board-number{font-size:13px;background:#315c4b;color:white;border-radius:50%;display:grid;place-items:center;width:35px;height:35px;flex-shrink:0}.map-board-header h2{font-size:25px;line-height:1.3}.map-board-header div>p{font-size:14px;color:#607166;line-height:1.65;margin-top:8px;max-width:800px}
.map-variants{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:18px}.map-variants a{border:1px solid #cdd8cf;padding:8px 12px;border-radius:6px;background:#fff;font-size:12px;text-decoration:none;line-height:1.5}.map-variants a[aria-current]{background:#315c4b;color:white;border-color:#315c4b;font-weight:650}
.map-view{background:#fff;border:1px solid var(--map-border);border-radius:6px;overflow:hidden}
/* Worksheet appearance follows the Excel examples in the course slides. */
.map-sheet{margin:16px;border:3px solid #507d47;background:#f2f2f2;font-family:Calibri,Arial,Helvetica,sans-serif;color:#151515}
.map-ledger-wrap{overflow-x:auto;max-width:100%}.map-ledger{border-collapse:collapse;width:100%;min-width:660px;table-layout:fixed;font-family:Calibri,Arial,Helvetica,sans-serif;font-size:14px;line-height:1.4;color:#151515}.map-ledger col.sheet-gutter{width:33px}.map-ledger col.sheet-item-column{width:43%}.map-ledger col.sheet-calculation-column{width:35%}.map-ledger col.sheet-result-column{width:auto}
.map-ledger th,.map-ledger td{border:1px solid #b6b6b6;padding:6px 10px;vertical-align:middle;background:#fff}.map-ledger .sheet-column-letters th{background:#d6d6d6;border-color:#adadad;text-align:center;padding:3px 5px;font:600 12px/1.3 Calibri,Arial,sans-serif;color:#4b4b4b}.map-ledger .sheet-corner{position:relative}.sheet-corner:after{content:'';position:absolute;right:4px;bottom:4px;border-left:11px solid transparent;border-bottom:11px solid #fafafa}.map-ledger .sheet-row-number{background:#e3e3e3;text-align:center;color:#666;font:400 12px/1.4 Calibri,Arial,sans-serif;padding:3px 4px;border-color:#b6b6b6;user-select:none}
.map-ledger .sheet-title-row th{text-align:center;padding:8px 9px;background:#fff}.sheet-title-row h3{font-family:Calibri,Arial,Helvetica,sans-serif;font-size:17px;line-height:1.3;font-weight:700;letter-spacing:0;color:#111}.map-ledger .sheet-field-names th{font-size:12px;font-weight:700;text-align:left;background:#f1f1f1;padding:5px 10px}.map-ledger .sheet-field-names th:last-child{text-align:right}
.map-ledger tbody th.sheet-item{text-align:left;font-weight:400}.map-row-choice{display:inline;border:0;background:transparent;padding:0;text-align:left;font:400 14px/1.4 Calibri,Arial,Helvetica,sans-serif;cursor:pointer;color:#151515}.map-row-choice:hover{text-decoration:underline;text-underline-offset:3px}.sheet-prefix{font-weight:400}.map-source-link{display:block;font-family:Calibri,Arial,sans-serif;font-size:10px;font-weight:400;color:#57795e;line-height:1.4;margin-top:2px;text-decoration:none}.map-source-link:hover{text-decoration:underline}
.map-ledger .sheet-calculation,.map-ledger .sheet-result{text-align:right}.map-equation{font-size:12px;min-width:0;overflow-x:auto;overflow-y:hidden;padding:1px 0}.map-equation .latex-display{margin:0;display:block;text-align:right}.map-equation .katex-display{margin:0;text-align:right}.map-equation .katex-display>.katex{text-align:right}.map-equation .katex{font-size:1.09em}.sheet-given{font-size:12px;color:#888;font-style:italic}.sheet-subtotal .sheet-item .map-row-choice,.sheet-final .sheet-item .map-row-choice{font-weight:700}.map-ledger .sheet-subtotal .sheet-result{border-top:1.5px solid #333}.map-ledger .sheet-final .sheet-result{border-top:1.5px solid #222;border-bottom:3px double #222}.sheet-subtotal .sheet-item{padding-left:18px}.sheet-final .sheet-item{padding-left:18px}
.map-ledger tr.map-needed .sheet-result{background:#e2efda}.map-ledger tr.map-requested .sheet-row-number{background:#d5e7cd;color:#23552a;font-weight:700}.map-ledger tr.map-requested .sheet-item{background:#fff9d9}.map-ledger tr.map-requested .sheet-result{background:#ffed94;box-shadow:inset 0 0 0 2px #327a39}.map-ledger tr.map-requested .map-row-choice{font-weight:700}.sheet-scroll-note{display:none}
.map-notes{border-top:1px solid var(--map-border);padding:13px 18px;font-size:12px;color:#607065}.map-notes summary{cursor:pointer;font-weight:600}.map-notes dl{margin:14px 0 0;line-height:1.7}.map-notes dt{font-weight:650;margin-top:12px;color:#385842}.map-notes dd{margin:3px 0 0}.map-assumption{font-size:12px;line-height:1.75;color:#607065;padding:15px 18px;border-top:1px solid var(--map-border);margin:0;background:#f5f7f3}.map-assumption b{color:#445f4c;font-weight:650}.map-connection{display:flex;gap:8px 17px;flex-wrap:wrap;border-top:1px solid var(--map-border);padding:13px 18px;font-size:12px}.map-connection span{font-size:10px;text-transform:uppercase;letter-spacing:.7px;width:100%;color:#758579}.map-connection a{color:#386447;text-decoration:none}.map-connection a:hover{text-decoration:underline}
.map-examples{padding:13px 18px;border-top:1px solid var(--map-border);font-size:12px}.map-examples summary{font-weight:600;cursor:pointer;color:#536c58}.map-examples ol{padding-left:21px;font-size:12px;line-height:1.7;margin:15px 0 0}.map-examples li{padding:4px 0}.map-examples a{text-decoration:none}.map-examples a:hover{text-decoration:underline}.map-next{display:flex;gap:10px 20px;flex-wrap:wrap;font-size:12px;padding:23px 0;border-bottom:1px solid var(--map-border)}.map-next span{width:100%;font-size:10px;letter-spacing:.7px;text-transform:uppercase;color:#748577}.map-next a{color:#42664c;text-decoration:none}
.map-classification{background:white;border:1px solid var(--map-border);border-radius:4px;overflow:hidden}.map-classification section+section{border-top:1px solid var(--map-border)}.map-classification h3{padding:13px 18px;background:#e7eee8;font-size:16px}.map-classification table{width:100%;border-collapse:collapse;font-family:Calibri,Arial,sans-serif;font-size:14px;line-height:1.5}.map-classification th,.map-classification td{padding:8px 12px;text-align:left;vertical-align:top;border:1px solid #c5cbc5}.map-classification th{width:29%;font-weight:650;color:#304b37;background:#f2f2f2}.map-classification td{color:#3c4e40}.map-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
@media(max-width:700px){.map-page-header h1{font-size:31px}.map-journey{display:none}.map-mobile-journey{display:flex;gap:10px;align-items:center;font-size:12px;margin-bottom:24px}.map-mobile-journey select{max-width:100%;flex:1;padding:10px;border:1px solid #cdd8cf;background:#fff;border-radius:4px;color:#315c4b}.map-board-header{gap:11px}.map-board-header h2{font-size:23px}.map-sheet{margin:12px 10px 13px;border-width:2px}.map-ledger{min-width:660px}.sheet-scroll-note{display:block;margin:0;padding:6px 9px;font-size:10px;color:#6b746d;background:#f4f4f4;border-top:1px solid #ccc}.map-assumption,.map-connection,.map-examples,.map-notes{padding:13px 12px}.map-variants a{font-size:11px;padding:7px 9px}.map-classification th,.map-classification td{padding:8px 10px;font-size:13px}.map-classification th{width:32%}}
@media print{.calculation-maps{max-width:none}.map-page-header h1{font-size:25px}.map-board-header{break-after:avoid;margin-top:22px}.map-view{margin:18px 0;break-inside:auto;border-radius:0}.map-sheet{margin:0 0 12px;border-width:1px}.map-ledger{font-size:10px;min-width:0}.map-ledger th,.map-ledger td{padding:5px}.map-row-choice{font-size:10px}.map-equation{font-size:9px}.sheet-title-row h3{font-size:14px}.map-ledger tbody tr{break-inside:avoid}.map-source-link{display:none}.map-notes,.map-assumption{font-size:9px}.map-next,.map-connection{display:none}.map-print,.map-print *{print-color-adjust:exact;-webkit-print-color-adjust:exact}}
.sheet-calculation .map-equation,.sheet-result .map-equation{white-space:normal;overflow:visible;line-height:1.7}.map-ledger .latex-inline{white-space:normal}.map-ledger .katex{white-space:normal}.map-ledger .katex .mord.text{white-space:normal}

/* Reference sheets stay with the exercise, between its solution and method. */
.exercise-reference-tables{--map-border:#cdd5ce;margin:28px 0;min-width:0}
.exercise-reference-tables>h2{font-size:22px;margin:0 0 15px;line-height:1.35}
.exercise-reference-tables>.map-view+.map-view,.exercise-reference-tables>.map-classification+.map-view{margin-top:16px}
.exercise-reference-tables .map-classification+.map-classification{margin-top:16px}
.exercise-reference-tables .sheet-title-row h3{font-size:17px;margin:0;line-height:1.3}
.exercise-reference-tables .map-classification h3{margin:0;font-size:16px;line-height:1.4}
.exercise-reference-tables .map-notes{margin:0}
.exercise-reference-tables .map-assumption{margin:0}
.lesson-example-content .exercise-reference-tables,.garnier-part .exercise-reference-tables{margin:24px 0}
@media(max-width:700px){.exercise-reference-tables>h2{font-size:20px}.exercise-reference-tables .map-sheet{margin:10px 8px}.exercise-reference-tables .map-classification th{width:34%}}
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.fundamentals-letter-answer{position:absolute;left:0;width:100%;color:#111}
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/* Read the FreshFusion source documents below the assignment letter. */
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/* Numbered Discover answers connect to prose without bullet lists. */
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/* The four concluding questions use the same letter and arrow layout. */
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/* Discover questions have their own letter below the two source documents. */
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/* Group repeated Fundamentals classifications into equal category columns. */
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/* Complete inventory statements directly, with the inserted words in red. */
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/* FreshFusion primary activities form a connected, six-stage value chain. */
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/* Equal-width letters share a row; wider letters occupy a full row. */
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/* Separate each Discover question and its matching answer group. */
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/* A readable letter-style handbook with the original lecture diagrams. */
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/* Phone-only reading layout; desktop calculation maps retain their original geometry. */
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.gentry-answer-summary{white-space:nowrap;max-width:100%}
.gentry-answer-summary>h3{display:inline;margin:0 10px 0 0}
.gentry-full-cost .gentry-answer-summary>.decision-equation{display:inline;white-space:nowrap}
.gentry-answer-summary+ul{margin-top:10px}
@media screen and (max-width:700px){
 .worksheet-mobile-flow .gentry-answer-summary{overflow-x:auto;white-space:nowrap}
 .worksheet-mobile-flow .gentry-answer-summary>h3{white-space:nowrap!important;display:inline!important;margin:0 10px 0 0!important}
 .worksheet-mobile-flow .gentry-answer-summary>.decision-equation{white-space:nowrap!important;display:inline}
}

/* Numerical values retain their source colour and size without bold weight. */
body[data-chapter] #content .worksheet-number { font-weight: 400 !important; }

/* A restrained increase makes table figures clearer without changing label typography. */
body[data-chapter] #content .working-flow table .worksheet-number {
  font-family: "KaTeX_Main", "Latin Modern Roman", "Times New Roman", serif !important;
  font-size: 1.1em !important;
  font-weight: 400 !important;
  line-height: inherit !important;
  letter-spacing: normal !important;
  font-variant-numeric: lining-nums tabular-nums;
  white-space: nowrap;
}

/* A shared reading margin gives all four exercise chapters more breathing room. */
body[data-chapter] #content {
  --worksheet-side-margin: clamp(32px, 5vw, 80px);
  padding: 20px var(--worksheet-side-margin) 40px;
}
@media screen and (max-width: 700px) {
  body[data-chapter] #content {
    --worksheet-side-margin: clamp(20px, 5vw, 28px);
    padding: 12px var(--worksheet-side-margin) 32px;
  }
  body[data-chapter] .worksheet-mobile-toolbar {
    margin: -12px 0 20px;
    padding: 10px 0;
  }
}
@media print {
  body[data-chapter] #content { padding: 0; }
}

/* Use the value chain's visible width when centring its canvas group. */
body[data-chapter="1"] .working-flow[data-answer-layout="vertical"] .working-canvas-node:has(.worksheet-value-chain){width:1710px;max-width:none}
/* Cost classifications: show the lecture diagrams before the completed tables. */
body[data-chapter="1"] .fundamentals-letter-stack:has([data-concept-diagram="s1-slide-41"])>.fundamentals-page-diagrams{order:-1}

/* Center every exercise-table title over its own table, including mobile. */
body[data-chapter] #content .working-flow table caption,
body[data-chapter] #content .working-flow table caption > *{text-align:center!important}

/* One vertical scroll surface; pinch zoom stays available without toolbar clutter. */
body[data-chapter]{overflow-anchor:none}
body[data-chapter] .working-canvas-window{overscroll-behavior:auto;touch-action:pan-x pan-y pinch-zoom}
body[data-chapter] .working-canvas-toolbar :is([data-canvas-zoom],[data-theory-zoom]){display:none!important}
body[data-chapter] .mobile-table-scroll{touch-action:pan-x pan-y pinch-zoom}