.opera-case { font-size: 16px; line-height: 1.8; }
.opera-case .section-wrap { width: min(1160px, calc(100% - 96px)); }
.opera-case a:focus-visible, .opera-case button:focus-visible, .prototype-panel:focus-visible { outline: 3px solid var(--coral); outline-offset: 5px; }
.opera-case .button, .opera-case .text-link { font-size: 14px; }
.opera-case .eyebrow { font-size: 12px; line-height: 1.6; }
.opera-case img { display: block; width: 100%; height: auto; }
.opera-case figure { margin: 0; }
.skip-link { position: fixed; top: -80px; left: 20px; z-index: 100; padding: 10px 20px; background: var(--ink); color: white; }
.skip-link:focus { top: 10px; }
.figure-topline { display: flex; justify-content: space-between; gap: 12px; font: 11px/1.6 var(--mono); padding: 12px 0; color: var(--green); border-top: 1px solid var(--line); }
.hero-prototype > a { display: block; border: 1px solid var(--line); box-shadow: 0 14px 35px #20221e08; }
.hero-prototype figcaption { display: flex; justify-content: space-between; gap: 20px; padding-top: 14px; color: var(--muted); font-size: 12px; }
.design-thesis { display: grid; grid-template-columns: 1fr 2fr; align-items: baseline; gap: 40px; padding: 48px 0 56px; }
.design-thesis > span { color: var(--muted); font: 11px/1.7 var(--mono); }
.design-thesis p { margin: 0; font-size: 25px; font-weight: 600; line-height: 1.65; }
.design-thesis p span { color: var(--green); }
.case-nav { position: sticky; top: 0; z-index: 10; background: #f5f3ecf5; border-block: 1px solid var(--line); }
.case-nav > div { display: flex; justify-content: space-between; gap: 16px; padding-block: 17px; }
.case-nav a { font-size: 12px; color: #62645b; white-space: nowrap; }
.case-nav a:hover, .case-nav a[aria-current] { color: var(--coral); }
.case-section { padding-block: 88px; scroll-margin-top: 65px; }
.chapter-heading { display: grid; grid-template-columns: 1fr 2fr; gap: 40px; margin-bottom: 44px; }
.chapter-heading > .eyebrow { color: var(--green); margin: 10px 0 0; }
.chapter-heading h2 { font-size: 40px; line-height: 1.4; letter-spacing: -.025em; margin-bottom: 20px; }
.chapter-heading h2 span { color: var(--coral); }
.chapter-heading > div > p { max-width: 620px; line-height: 1.9; color: #62645b; margin-bottom: 0; }
.diagram-panel { padding: 26px 28px; background: #ebe8dd80; border: 1px solid var(--line); }
.diagram-caption { display: flex; justify-content: space-between; gap: 16px; margin-bottom: 25px; }
.diagram-caption strong { font-size: 16px; }
.diagram-caption > span { color: var(--muted); font: 11px/1.8 var(--mono); }
.process { list-style: none; margin: 0; padding: 0; display: grid; gap: 22px; }
.original-process { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.process li { position: relative; min-width: 0; }
.original-process li { background: var(--paper); padding: 17px 13px; border: 1px solid var(--line); }
.process li:not(:last-child)::after { content: '→'; position: absolute; left: calc(100% + 5px); top: 44%; color: var(--coral); font-size: 18px; }
.process li > span { font: 11px/1.6 var(--mono); color: var(--muted); display: block; margin-bottom: 14px; }
.original-process b { font-size: 14px; }
.diagram-note { margin: 20px 0 0; font-size: 13px; color: #62645b; }
.research-problems { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 30px; margin-top: 34px; }
.research-problems article { border-top: 2px solid var(--ink); padding-top: 21px; }
.problem-index { color: var(--coral); font: 11px/1.7 var(--mono); }
.research-problems h3 { font-size: 20px; margin: 14px 0 13px; line-height: 1.5; }
.research-problems p { font-size: 15px; color: #62645b; line-height: 1.9; }
.goal { font-size: 13px; color: var(--green); }
.research-findings { margin-top: 62px; padding-top: 38px; border-top: 1px solid var(--line); display: grid; grid-template-columns: 1fr 1.3fr; gap: 72px; }
.research-findings h3 { font-size: 26px; line-height: 1.5; }
.research-findings > div > p:not(.eyebrow) { font-size: 15px; color: #62645b; }
.source-note { font-size: 13px !important; line-height: 1.9; color: #686b60; }
.finding-list { list-style: none; padding: 0; margin: 0; }
.finding-list li { display: grid; grid-template-columns: 35px 1fr; gap: 20px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.finding-list li:first-child { padding-top: 0; }
.finding-list li > span { color: var(--coral); font: 19px var(--serif); }
.finding-list h4 { font-size: 18px; margin: 0 0 6px; }
.finding-list p { color: #62645b; font-size: 15px; margin: 0; }
.strategy-band { background: #293d32; color: var(--paper); }
.strategy-band .eyebrow { color: #bbc8ad; }
.strategy-band .chapter-heading h2 span { color: #e9a58c; }
.strategy-band .chapter-heading > div > p { color: #c4ccc0; }
.product-process { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.product-process li { border-top: 2px solid #9daf94; padding: 21px 12px 17px 0; }
.product-process li > span { color: #b9c6b0; }
.product-process h3 { font-size: 19px; margin: 14px 0 12px; line-height: 1.5; }
.product-process p { font-size: 14px; line-height: 1.9; color: #c4ccc0; margin: 0; }
.product-process li:nth-child(3) { border-color: #e9a58c; }
.product-process li:not(:last-child)::after { color: #e9a58c; }
.architecture { margin-top: 42px; border: 1px solid #b9c6b047; display: grid; grid-template-columns: 1fr 2fr; padding: 32px; gap: 45px; }
.architecture-label > span { font: 10px/1.8 var(--mono); color: #b9c6b0; }
.architecture-label h3 { font-size: 25px; line-height: 1.6; margin: 20px 0 0; }
.tree-project { display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; padding-bottom: 18px; border-bottom: 1px solid #b9c6b047; }
.tree-project > span { color: #c4ccc0; font-size: 13px; }
.tree-branches { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; padding: 22px 0; }
.tree-branches > div { border-left: 2px solid #e9a58c; padding-left: 18px; }
.tree-branches b { font-size: 15px; }
.tree-branches p { color: #c4ccc0; font-size: 13px; margin: 8px 0 0; }
.reuse-loop { border-top: 1px dashed #b9c6b047; padding-top: 16px; display: flex; flex-wrap: wrap; gap: 18px; justify-content: space-between; font-size: 13px; }
.reuse-loop b { color: #e9a58c; }
.strategy-principle { color: #c4ccc0; font-size: 14px; margin: 26px 0 0; }
.decision { display: grid; grid-template-columns: 1fr 2fr; gap: 40px; border-top: 1px solid var(--line); padding-block: 46px; }
.decision:last-child { padding-bottom: 0; }
.decision-title > span { color: var(--coral); font: 12px var(--mono); }
.decision-title h3 { font-size: 29px; line-height: 1.5; margin: 23px 0 14px; }
.decision-title > p { color: #62645b; font-size: 14px; }
.decision-title > a { font-size: 13px !important; color: var(--green); }
.decision-reason { margin: 0; }
.decision-reason > div { display: grid; grid-template-columns: 72px 1fr; gap: 22px; margin-bottom: 22px; }
.decision-reason dt { font-size: 13px; color: var(--green); font-weight: 700; padding-top: 2px; }
.decision-reason dd { margin: 0; font-size: 15px; color: #55594f; line-height: 1.9; }
.comparison { display: grid; grid-template-columns: 1fr 1fr; margin-top: 28px; border: 1px solid var(--line); }
.comparison > div { padding: 24px; background: #ebe8dd80; }
.comparison > div + div { border-left: 1px solid var(--line); background: #e6ebdf; }
.comparison span { color: #62645b; font: 11px/1.8 var(--mono); }
.comparison > div + div > span { color: var(--green); }
.comparison p { font-size: 17px; font-weight: 700; margin: 16px 0 12px; line-height: 1.5; }
.comparison small { color: #62645b; font-size: 13px; line-height: 1.8; }
.asset-comparison p small { display: block; font-weight: 400; }
.tradeoff { margin: 22px 0 0; font-size: 13px; color: #62645b; line-height: 1.9; }
.tradeoff b { color: var(--ink); margin-right: 10px; }
.decision-evidence { margin-top: 24px !important; }
.decision-evidence img { border: 1px solid var(--line); }
.decision-evidence figcaption { font-size: 12px; color: var(--muted); padding-top: 10px; }
.task-stages { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; list-style: none; margin: 28px 0 0; padding: 0; }
.task-stages li { padding: 17px 8px; background: #e6ebdf; color: var(--green); font-size: 14px; font-weight: 700; position: relative; text-align: center; }
.task-stages li:not(:last-child)::after { content: '→'; position: absolute; left: calc(100% + 3px); color: var(--green); }
.task-stages span { display: block; font: 11px var(--mono); margin-bottom: 10px; }
.recovery-path { display: flex; gap: 15px; margin-top: 18px; padding: 14px 18px; border: 1px solid #d95f4933; color: #62645b; font-size: 13px; }
.recovery-path b { flex-shrink: 0; color: var(--coral); }
.prototype-band { background: #ebe8dd80; border-block: 1px solid var(--line); }
.prototype-tabs { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 20px; }
.prototype-tabs button { flex: 1 1 auto; padding: 13px 15px; color: #62645b; background: transparent; border: 1px solid var(--line); font-size: 13px; cursor: pointer; }
.prototype-tabs button:hover { color: var(--green); border-color: var(--green); }
.prototype-tabs button[aria-selected="true"] { background: var(--green); color: white; border-color: var(--green); }
.prototype-panel figure { border: 1px solid var(--line); background: var(--paper); }
.prototype-panel figcaption { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; padding: 12px 20px; color: var(--muted); font: 11px/1.8 var(--mono); }
.prototype-description { display: grid; grid-template-columns: 1.5fr 1fr; gap: 60px; padding: 4px 0 28px; }
.prototype-description .eyebrow { margin-bottom: 12px; color: var(--green); }
.prototype-description h3 { font-size: 25px; line-height: 1.5; margin-bottom: 12px; }
.prototype-description p:not(.eyebrow) { font-size: 15px; color: #62645b; margin-bottom: 0; }
.prototype-boundary { padding-left: 24px; border-left: 2px solid var(--coral); }
.prototype-boundary > span { color: var(--coral); font-size: 12px; font-weight: 700; }
.prototype-boundary > p { margin-top: 9px; }
.prototype-boundary .text-link { margin-top: 14px; font-size: 13px; }
.prototype-cta { padding: 23px 0; margin: 7px 0 20px; border-block: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.prototype-cta p { margin: 0; }
.prototype-cta strong { display: block; font-size: 19px; }
.prototype-cta p span { display: block; color: #62645b; font-size: 13px; margin-top: 5px; }
.outcome-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; }
.outcome-grid article { border-top: 3px solid var(--green); padding: 24px 0 0; }
.outcome-grid article:nth-child(2) { border-color: var(--coral); }
.outcome-grid article:nth-child(3) { border-color: #989c8d; }
.outcome-status { color: var(--green); font: 11px/1.6 var(--mono); margin-bottom: 20px; }
.outcome-grid h3 { font-size: 21px; line-height: 1.5; }
.outcome-grid ul { padding-left: 19px; color: #55594f; font-size: 15px; line-height: 2.1; }
.outcome-grid article > p:last-child:not(.outcome-status) { font-size: 13px; color: #62645b; line-height: 1.9; }
.validation-plan { display: grid; grid-template-columns: 1fr 2fr; gap: 40px; padding: 28px 0; margin-top: 35px; border-block: 1px solid var(--line); }
.validation-plan > span { color: var(--green); font: 12px/1.8 var(--mono); }
.validation-plan p { margin: 0; font-size: 15px; color: #62645b; }
.reflection { margin: 64px 0; padding-left: 34px; border-left: 4px solid var(--coral); }
.reflection p { font-size: 36px; font-weight: 700; line-height: 1.65; margin-bottom: 22px; letter-spacing: -.02em; }
.reflection p span { color: var(--green); }
.reflection footer { font-size: 13px; color: #62645b; }
.project-status { padding: 25px 28px; border: 1px solid var(--line); }
.project-status .eyebrow { margin-bottom: 14px; }
.project-status > p:last-child { font-size: 13px; color: #62645b; margin: 0; line-height: 1.9; }
.end-links { display: flex; justify-content: space-between; gap: 20px; padding-top: 35px; }
.opera-case .site-footer { height: auto; min-height: 110px; gap: 20px; padding-block: 25px; }
@media (max-width: 1000px) {
  .chapter-heading, .decision, .architecture, .design-thesis, .validation-plan { gap: 28px; grid-template-columns: 1fr 2fr; }
  .chapter-heading h2 { font-size: 34px; }
  .decision-title h3 { font-size: 25px; }
  .original-process { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .original-process li:nth-child(3)::after { content: '↓'; top: calc(100% + 1px); left: 48%; }
  .research-findings { gap: 35px; }
  .product-process { grid-template-columns: 1fr; gap: 0; }
  .product-process li { display: grid; grid-template-columns: 135px 1fr 1.2fr; gap: 15px; padding: 22px 0; align-items: baseline; }
  .product-process h3, .product-process li > span { margin: 0; }
  .product-process li p br { display: none; }
  .product-process li:not(:last-child)::after { content: '↓'; top: auto; bottom: -16px; left: 48%; z-index: 1; background: #293d32; }
  .comparison > div { padding: 20px; }
  .outcome-grid { gap: 22px; }
  .outcome-grid h3 { font-size: 19px; }
  .prototype-description { gap: 32px; }
}
@media (max-width: 700px) {
  .opera-case .section-wrap { width: calc(100% - 36px); }
  .opera-case .eyebrow { font-size: 11px; }
  .figure-topline { flex-direction: column; gap: 3px; font-size: 10px; }
  .hero-prototype figcaption { flex-direction: column; gap: 5px; }
  .design-thesis, .chapter-heading, .decision, .architecture, .validation-plan { grid-template-columns: 1fr; }
  .design-thesis { padding: 32px 0 38px; gap: 16px; }
  .design-thesis p { font-size: 22px; }
  .case-nav > div { display: grid; grid-template-columns: repeat(3, 1fr); gap: 7px 14px; padding-block: 12px; }
  .case-nav a { font-size: 11px; }
  .case-section { padding-block: 56px; scroll-margin-top: 85px; }
  .chapter-heading { gap: 18px; margin-bottom: 32px; }
  .chapter-heading > .eyebrow { margin: 0; }
  .chapter-heading h2 { font-size: 30px; }
  .chapter-heading > div > p { font-size: 15px; }
  .diagram-panel { padding: 22px 18px; }
  .diagram-caption { flex-direction: column; gap: 4px; }
  .original-process { grid-template-columns: 1fr; gap: 20px; }
  .original-process li { display: flex; align-items: center; gap: 18px; padding: 13px 18px; }
  .original-process li > span { margin: 0; }
  .original-process li:not(:last-child)::after, .original-process li:nth-child(3)::after { content: '↓'; left: 48%; top: calc(100% - 1px); }
  .research-problems, .research-findings, .outcome-grid { grid-template-columns: 1fr; gap: 28px; }
  .research-problems h3 { font-size: 20px; }
  .research-findings { margin-top: 40px; padding-top: 32px; }
  .finding-list li { gap: 14px; }
  .finding-list h4 { font-size: 17px; }
  .product-process li { grid-template-columns: 1fr 1.4fr; gap: 10px; }
  .product-process li > span { grid-column: 1 / -1; }
  .product-process h3 { font-size: 18px; }
  .product-process p { font-size: 13px; }
  .architecture { padding: 23px 20px; gap: 24px; margin-top: 30px; }
  .architecture-label h3 { font-size: 23px; margin-top: 12px; }
  .tree-branches { grid-template-columns: 1fr; gap: 20px; }
  .reuse-loop { gap: 10px; }
  .decision { gap: 26px; padding-block: 32px; }
  .decision-title h3 { font-size: 26px; margin-top: 14px; }
  .decision-title h3 br { display: none; }
  .decision-reason > div { grid-template-columns: 1fr; gap: 6px; margin-bottom: 20px; }
  .comparison { grid-template-columns: 1fr; }
  .comparison > div + div { border-left: 0; border-top: 1px solid var(--line); }
  .task-stages { grid-template-columns: 1fr; gap: 19px; }
  .task-stages li { display: flex; justify-content: center; gap: 14px; align-items: center; padding: 12px; }
  .task-stages span { margin: 0; }
  .task-stages li:not(:last-child)::after { content: '↓'; left: 48%; top: calc(100% - 2px); }
  .recovery-path { flex-direction: column; gap: 5px; }
  .prototype-tabs { display: grid; grid-template-columns: 1fr 1fr; }
  .prototype-tabs button { font-size: 12px; padding: 12px 8px; }
  .prototype-description { grid-template-columns: 1fr; gap: 23px; padding: 4px 0 24px; }
  .prototype-description h3 { font-size: 23px; }
  .prototype-cta { align-items: flex-start; flex-direction: column; }
  .prototype-panel figcaption { padding: 10px 12px; font-size: 10px; }
  .outcome-grid article { padding-top: 20px; }
  .outcome-grid h3 { font-size: 22px; }
  .reflection { padding-left: 20px; margin: 40px 0; }
  .reflection p { font-size: clamp(22px, 6.1vw, 29px); }
  .project-status { padding: 22px 19px; }
  .end-links { flex-wrap: wrap; }
  .opera-case .site-footer { flex-wrap: wrap; }
  .opera-case .site-footer > p { display: none; }
}
@media (prefers-reduced-motion: reduce) { .opera-case { scroll-behavior: auto; } }

/* Decision narratives: text, design diagrams, and verified prototype evidence. */
.decision-index { display: flex; flex-wrap: wrap; gap: 12px 32px; border-top: 1px solid var(--line); padding: 18px 0; margin-bottom: 12px; }
.decision-index a { font-size: 13px; color: var(--green); }
.decision-index a:hover { color: var(--coral); }
.decision-story { display: block; padding-block: 56px; }
.decision-head { display: grid; grid-template-columns: 1fr 2fr; gap: 40px; margin-bottom: 32px; }
.decision-number { color: var(--coral); font: 12px/1.8 var(--mono); padding-top: 9px; }
.decision-head h3 { margin: 0 0 14px; font-size: 32px; line-height: 1.5; letter-spacing: -.02em; scroll-margin-top: 80px; text-wrap: balance; }
.decision-summary { margin: 0; font-size: 17px; color: var(--green); }
.decision-context { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.decision-story h4 { margin: 0 0 14px; font: 12px/1.8 var(--mono); color: var(--green); font-weight: 500; }
.decision-context p { color: #55594f; font-size: 15px; line-height: 1.9; margin: 0 0 14px; }
.decision-choice { margin-top: 22px; padding: 24px 28px; border-left: 3px solid var(--green); background: #e6ebdf70; }
.decision-choice > span { font: 12px/1.8 var(--mono); color: var(--green); }
.decision-choice p { font-size: 21px; line-height: 1.8; margin: 12px 0 0; }
.decision-choice b { color: var(--green); font-weight: 700; }
.evidence-heading { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 6px 24px; margin: 32px 0 18px; }
.evidence-heading h4 { margin: 0; }
.evidence-heading > span, .evidence-note { font-size: 13px; line-height: 1.8; color: #686b60; }
.workflow-comparison { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--line); }
.workflow-lane { background: #ebe8dd60; padding: 25px 30px; }
.workflow-lane + .workflow-lane { border-left: 1px solid var(--line); }
.workflow-lane h5 { margin: 0 0 22px; font: 13px/1.8 var(--mono); color: #55594f; }
.workflow-target { background: #e6ebdf70; }
.workflow-target h5 { color: var(--green); }
.vertical-flow { display: grid; gap: 20px; list-style: none; padding: 0; margin: 0; }
.vertical-flow li { position: relative; padding: 10px 14px; border: 1px solid var(--line); background: var(--paper); font-size: 15px; text-align: center; }
.vertical-flow li:not(:last-child)::after { content: '↓'; position: absolute; top: calc(100% - 2px); left: calc(50% - 7px); color: var(--coral); }
.vertical-flow small { display: block; color: #62645b; font-size: 13px; line-height: 1.7; margin-top: 3px; }
.vertical-flow .split-node { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.split-node > span + span { border-left: 1px solid var(--line); padding-left: 16px; }
.workflow-lane > p { margin: 22px 0 0; font-size: 14px; color: #62645b; }
.evidence-shot { min-width: 0; }
.evidence-shot a { display: block; background: #f8f9fa; border: 1px solid var(--line); }
.evidence-shot figcaption { display: flex; flex-direction: column; gap: 5px; padding: 12px 0 0; font-size: 13px; line-height: 1.8; color: #686b60; }
.evidence-shot figcaption b { color: var(--ink); font-size: 14px; }
.project-evidence-group { display: grid; grid-template-columns: minmax(0, 1fr) 230px; gap: 30px; }
.project-evidence-main { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; }
.project-evidence-main .evidence-shot img { aspect-ratio: 1.95; object-fit: cover; object-position: top; }
.sku-evidence { width: 230px; }
.design-followthrough, .prototype-implementation { display: grid; grid-template-columns: 1fr 2fr; gap: 40px; padding-top: 24px; margin-top: 28px; border-top: 1px solid var(--line); }
.design-followthrough p, .prototype-implementation p { margin: 0; color: #55594f; font-size: 15px; line-height: 1.9; }
.decision-tradeoff { display: grid; grid-template-columns: 1fr 2fr; gap: 40px; padding: 25px 0 0; margin-top: 28px; border-top: 1px solid var(--line); }
.decision-tradeoff h4 { color: var(--coral); }
.decision-tradeoff p { margin: 0; font-size: 15px; color: #55594f; line-height: 1.9; }
.decision-assets .decision-head h3 { font-size: 36px; }
.asset-timeline { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; list-style: none; padding: 0; margin: 0; }
.asset-timeline > li { position: relative; display: flex; flex-direction: column; border-top: 3px solid #a6a99d; padding: 24px 22px; background: #ebe8dd70; }
.asset-timeline > li:last-child { border-color: var(--green); background: #e6ebdf; }
.asset-timeline > li:not(:last-child)::after { content: '→'; position: absolute; top: 47%; left: calc(100% + 5px); color: var(--coral); font-size: 20px; }
.version-head { display: flex; align-items: center; gap: 18px; padding-bottom: 22px; }
.version-head > span { font: 36px/1 var(--serif); color: var(--coral); }
.version-head h5 { font-size: 18px; line-height: 1.5; margin: 0; }
.version-structure { padding: 18px; border: 1px solid var(--line); background: var(--paper); min-height: 156px; }
.version-structure b { font: 600 16px/1.8 var(--sans); }
.version-structure p { margin: 5px 0 12px; font-size: 14px; line-height: 1.8; color: #62645b; }
.version-structure p:last-child { margin-bottom: 0; }
.origin-marker { font-size: 12px; border: 1px solid var(--line); padding: 4px 8px; color: #62645b; display: inline-block; }
.version-observation { margin: 22px 0 0; font-size: 14px; line-height: 1.9; color: #55594f; }
.version-observation b { display: block; font-size: 13px; color: var(--green); margin-bottom: 6px; }
.evidence-note { margin: 16px 0 0; }
.prompt-insight { display: grid; grid-template-columns: 1fr 2fr; gap: 40px; padding-block: 30px; margin-top: 24px; border-block: 1px solid var(--line); }
.prompt-insight > span { font: 12px/1.9 var(--mono); color: var(--coral); }
.prompt-insight h5 { font-size: 22px; line-height: 1.6; margin: 0 0 12px; }
.prompt-insight p { font-size: 15px; line-height: 1.9; color: #55594f; margin: 0; }
.asset-architecture { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin-top: 30px; }
.asset-architecture > div { border: 1px solid var(--line); padding: 25px; }
.asset-architecture h5 { font-size: 23px; line-height: 1.6; margin: 0 0 22px; color: var(--green); }
.asset-architecture h5 > span { display: block; font-size: 14px; font-weight: 500; color: #62645b; }
.asset-branches { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.asset-branches > div { border-left: 2px solid var(--coral); padding-left: 15px; }
.asset-branches h6 { font-size: 15px; line-height: 1.7; margin: 0 0 10px; }
.asset-branches p { font-size: 14px; color: #55594f; margin: 0 0 8px; }
.asset-branches small { font-size: 13px; line-height: 1.8; color: #62645b; }
.asset-operations { font-size: 13px; line-height: 1.8; color: var(--green); margin: 22px 0 0; padding-top: 18px; border-top: 1px solid var(--line); }
.asset-evidence-row { display: grid; grid-template-columns: 1fr 2fr; gap: 40px; align-items: start; padding: 28px 0; border-top: 1px solid var(--line); }
.asset-evidence-copy > span { color: var(--coral); font: 12px/1.9 var(--mono); }
.asset-evidence-copy h5 { font-size: 24px; line-height: 1.6; margin: 18px 0 14px; }
.asset-evidence-copy p { font-size: 15px; line-height: 1.9; color: #55594f; }
.asset-evidence-copy .text-link { font-size: 13px; color: var(--green); }
.status-options { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--line); }
.status-options > div { padding: 24px; background: #ebe8dd70; }
.status-options > div + div { background: #e6ebdf70; border-left: 1px solid var(--line); }
.status-options > div > span { font: 12px/1.8 var(--mono); color: #55594f; }
.status-options > div + div > span { color: var(--green); }
.status-options > div > p { font-size: 14px; line-height: 1.9; color: #55594f; margin: 25px 0 0; }
.percentage-example { display: grid; grid-template-columns: 1fr auto; align-items: baseline; gap: 16px; margin-top: 25px; }
.percentage-example > b { font-size: 16px; color: #62645b; }
.percentage-example > strong { font: 36px/1.2 var(--serif); color: var(--coral); }
.example-progress { grid-column: 1 / -1; height: 5px; background: var(--line); margin-bottom: 9px; }
.example-progress i { display: block; width: 99%; height: 100%; background: var(--coral); }
.status-options .task-stages { gap: 16px; margin-top: 25px; }
.status-options .task-stages li { padding: 14px 5px; background: var(--paper); font-size: 14px; }
.task-loop { background: #ebe8dd60; border: 1px solid var(--line); padding: 25px; }
.task-loop-start { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 24px; text-align: center; }
.task-loop-start > span { padding: 12px 24px; background: var(--paper); border: 1px solid var(--line); font-weight: 700; font-size: 15px; }
.task-loop-start small { display: block; font-size: 13px; font-weight: 400; color: #62645b; }
.task-loop-start > b { color: var(--coral); }
.task-loop-start > b:last-child { flex-basis: 100%; line-height: 1; }
.task-loop-branches { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: 20px; }
.task-loop-branches > div { border-top: 2px solid var(--green); background: var(--paper); padding: 18px; }
.task-loop-branches > div:nth-child(2) { border-color: var(--coral); }
.task-loop-branches > div:nth-child(3) { border-color: #989c8d; }
.task-loop-branches h5 { font-size: 18px; margin: 0 0 12px; }
.task-loop-branches p { font-size: 14px; line-height: 1.9; margin: 0 0 10px; color: #55594f; }
.task-loop-branches small { font-size: 13px; line-height: 1.8; color: #62645b; }
.task-evidence-group { display: grid; grid-template-columns: 1.15fr 1fr; gap: 28px; align-items: center; }
.asset-dimensions { width: 100%; border-collapse: collapse; table-layout: fixed; margin-top: 28px; color: #55594f; font-size: 15px; line-height: 1.9; }
.asset-dimensions caption { text-align: left; color: var(--green); font: 12px/1.8 var(--mono); padding-bottom: 18px; }
.asset-dimensions th, .asset-dimensions td { text-align: left; vertical-align: top; padding: 15px 18px; border-bottom: 1px solid var(--line); overflow-wrap: anywhere; }
.asset-dimensions thead th { color: var(--green); background: #e6ebdf70; border-top: 1px solid var(--line); font-weight: 600; }
.asset-dimensions th:first-child { width: 20%; padding-left: 0; }
.asset-dimensions tbody th { font-size: 14px; font-weight: 600; }
@media (max-width: 1000px) {
  .decision-head { grid-template-columns: 1fr 2fr; gap: 28px; }
  .decision-head h3, .decision-assets .decision-head h3 { font-size: 29px; }
  .project-evidence-group { grid-template-columns: minmax(0, 1fr) 200px; gap: 24px; }
  .project-evidence-main { grid-template-columns: 1fr; }
  .sku-evidence { width: 200px; }
  .asset-timeline { gap: 20px; }
  .asset-timeline > li { padding: 20px 15px; }
  .version-head { gap: 12px; flex-wrap: wrap; }
  .version-head h5 { font-size: 17px; }
  .version-structure { padding: 15px; }
  .asset-timeline > li:not(:last-child)::after { left: calc(100% + 2px); }
  .asset-architecture { gap: 20px; }
  .asset-architecture > div { padding: 22px; }
  .asset-branches { grid-template-columns: 1fr; }
  .asset-evidence-row { gap: 28px; }
  .asset-evidence-copy h5 { font-size: 21px; }
  .status-options .task-stages { gap: 12px; }
  .task-loop-branches { gap: 14px; }
}
@media (max-width: 700px) {
  .decision-index { gap: 12px; }
  .decision-index a { font-size: 12px; }
  .decision-story { padding-block: 38px; }
  .decision-head { grid-template-columns: 1fr; gap: 12px; margin-bottom: 25px; }
  .decision-number { padding-top: 0; }
  .decision-head h3, .decision-assets .decision-head h3 { font-size: 27px; scroll-margin-top: 100px; }
  .decision-summary { font-size: 16px; }
  .decision-context { grid-template-columns: 1fr; gap: 20px; }
  .decision-choice { padding: 20px; margin-top: 15px; }
  .decision-choice p { font-size: 19px; }
  .evidence-heading { margin-top: 27px; }
  .workflow-comparison, .project-evidence-group, .design-followthrough, .decision-tradeoff, .prompt-insight, .asset-architecture, .asset-evidence-row, .status-options, .task-loop-branches, .task-evidence-group, .prototype-implementation { grid-template-columns: 1fr; gap: 22px; }
  .workflow-comparison, .status-options { gap: 0; }
  .workflow-lane { padding: 22px; }
  .workflow-lane + .workflow-lane, .status-options > div + div { border-left: 0; border-top: 1px solid var(--line); }
  .vertical-flow .split-node { gap: 12px; }
  .split-node > span + span { padding-left: 12px; }
  .project-evidence-main { gap: 22px; }
  .sku-evidence { width: min(256px, 100%); margin-inline: auto !important; }
  .design-followthrough, .decision-tradeoff, .prototype-implementation, .prompt-insight { gap: 10px; }
  .decision-story h4 { font-size: 11px; }
  .asset-timeline { grid-template-columns: 1fr; gap: 26px; }
  .asset-timeline > li { padding: 23px; }
  .asset-timeline > li:not(:last-child)::after { content: '↓'; left: calc(50% - 7px); top: calc(100% + 1px); }
  .version-head { padding-bottom: 18px; }
  .version-structure { min-height: 0; }
  .asset-branches { grid-template-columns: 1fr; }
  .asset-evidence-copy h5 br { display: none; }
  .asset-evidence-copy h5 { font-size: 23px; margin-top: 12px; }
  .asset-evidence-row { padding-block: 25px; }
  .status-options > div { padding: 22px; }
  .status-options .task-stages { grid-template-columns: 1fr; gap: 19px; }
  .task-loop { padding: 20px; }
  .task-loop-start { flex-direction: column; gap: 10px; }
  .task-loop-start > b:first-of-type { font-size: 0; }
  .task-loop-start > b:first-of-type::after { content: '↓'; font-size: 16px; }
  .task-loop-start > span { width: 100%; }
  .task-loop-start > b:last-child { flex-basis: auto; }
  .task-loop-branches { gap: 16px; }
  .task-evidence-group { gap: 24px; }
  .asset-dimensions { font-size: 14px; }
  .asset-dimensions th, .asset-dimensions td { padding: 12px 7px; }
  .asset-dimensions th:first-child { width: 23%; }
  .asset-dimensions tbody th { font-size: 13px; }
}