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@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}
/* The first case previews follow immediately after the four-part method strip. */
.cases-section{padding-top:32px}
@media(max-width:640px){.cases-section{padding-top:36px}}
.home .hero{background:var(--paper)}
@media(max-width:640px){.site-header .header-cta{min-width:44px;min-height:44px}.site-header nav a{padding:8px 0}}
/* Focused copy and hierarchy refinements. */
.method-strip article{padding:23px 24px 21px}.method-strip p{margin:9px 0 0;font-size:13px}.method-strip h2{font-size:25px}
.case-overview{display:block}.case-overview .section-intro{display:flex;justify-content:space-between;align-items:end;border:0;padding:0;gap:35px}.case-overview .section-intro>p{margin:0;font-size:13px}.case-tabs{margin-top:30px}
.case-context .case-situation{font:400 14px/1.9 var(--sans);color:var(--muted);margin:0 0 18px}.case-context .case-reversal{font:600 20px/1.7 var(--sans);color:var(--ink);letter-spacing:-.02em;margin:0 0 22px}
/* A data diagram: every edge represents one table row and its explicit condition. */
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@media(min-width:641px) and (max-width:960px){.case-context{grid-template-columns:1fr}.case-context .case-reversal,.case-context .case-situation,.case-context .quiet-link{grid-column:1;justify-self:start}.case-context .case-reversal{font-size:21px;margin:0 0 16px}.notebook-demo{grid-template-columns:1fr}.record-table td{font-size:13px}.record-table .record-condition{font-size:12px}.demo-panel-heading{display:flex}.record-book,.record-map{padding:26px}.record-map .knowledge-graph{max-width:600px;align-self:center}.record-table button{font-size:14px}}
@media(max-width:640px){.home .header-cta{display:none}.site-header .wrap.header-inner{justify-content:flex-start}.site-header nav{gap:28px}.method-strip article{padding:17px 14px}.method-strip p{font-size:11px;min-height:0;margin:8px 0 0}.method-strip h2{font-size:22px}.case-overview .section-intro{display:block}.case-overview .section-intro>p{margin-top:16px;font-size:12px}.case-context .case-situation{font-size:14px;margin-bottom:15px}.case-context .case-reversal{font-size:19px;line-height:1.7;margin-bottom:20px}.case-tabs{margin-top:24px}.notebook-demo{grid-template-columns:1fr;gap:18px;margin-top:27px}.record-book,.record-map{padding:18px 14px}.demo-panel-heading h3{font-size:23px}.demo-panel-heading>span{font-size:10px}.record-table th{padding:10px 6px;font-size:10px}.record-table td{padding:15px 6px;font-size:11px}.record-table .record-condition{font-size:10px}.record-table button{font-size:11px}.record-table th:nth-child(1){width:24%}.record-table th:nth-child(2){width:12%}.record-table th:nth-child(3){width:36%}.record-table th:nth-child(4){width:28%}.record-actions .button{font-size:11px;padding:11px 13px;min-height:44px}.record-actions{gap:12px}.selected-relation{font-size:13px;gap:9px}.selected-condition{font-size:11px;gap:10px}.knowledge-graph{margin:15px 0}.graph-node text{font-size:16px}.graph-edge text{font-size:14px}.graph-detail{padding:15px}.record-book>.caption{min-height:0}.notebook-foot .caption{font-size:10px}}
/* Verification is persistent state; selection only adds an outline. */
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@media(max-width:640px){.record-state{font-size:9px;margin-top:8px}.graph-node .node-state{font-size:11px}.graph-status-legend{font-size:10px;gap:16px}}
/* Alternative homepage: warm editorial palette and a direct text banner. */
body.home{--ink:#4d2030;--paper:#faf3e4;--line:#d9cbb9;--muted:#827668;--accent:#d6c6e5;background:var(--paper);color:var(--ink)}.home .brand,.home .brand span{color:var(--ink)}.home .hero{min-height:625px}.home .hero-inner{padding-top:142px}.home .hero-image{height:650px}.hero-eyebrow{font:10px/1.6 var(--sans);letter-spacing:2px;color:#70404d;margin-bottom:22px}.home .hero h1{color:#4d2030;font-size:clamp(68px,7.2vw,108px);line-height:1.17}.home .hero-lead{color:#3f2029}.home .hero-question{color:#8a7a6a}.home .button:not(:disabled){background:#4d2030;border-color:#4d2030;color:#fff6e9}.home .button:not(:disabled):hover{background:#653047}.home .button.secondary:not(:disabled){background:transparent;color:#4d2030}.home .button.secondary:not(:disabled):hover{background:#4d2030;color:#fff6e9}.thinking-banner{background:#4d2030;color:#fff6e9;padding:36px 0 39px}.thinking-banner-inner{display:grid;grid-template-columns:minmax(0,1fr) 235px;align-items:center;gap:45px}.thinking-banner h2{font-size:clamp(29px,3.2vw,46px);letter-spacing:-.04em;line-height:1.65;color:#fff6e9}.thinking-banner h2>span{display:block}.thinking-banner h2>span:first-child{color:#ead7d2}.thinking-banner-inner>p{font:15px/1.9 var(--serif);color:#f0dcd9;border-left:1px solid #8d5968;padding-left:30px}.home .cases-section{margin-top:0;border-top:0;padding-top:44px}.home .case-tabs button[aria-selected=true]{background:#ecdfec;color:#4d2030}.home .case-tabs button[aria-selected=true]:after{border-color:#8a526b}.home .cell.condition{background:#e5dcec}.home .value-section{background:#eee3d3}.home .notebook-section{background:#eee5ea}.home .record-book,.home .record-map{background:#fcf8ee;border-color:#d9cfd2}.home .graph-detail{background:#f0eae6}.home .plan{background:#fff9ef}.home .site-footer{background:#4d2030}.home .site-footer .brand,.home .site-footer .brand span{color:#fff6e9}.home .footer-bottom{border-color:#885a67;color:#e0cbd0}.home .footer-top>p{color:#fff6e9}.home .text-link:hover{color:#8c5269;border-color:#8c5269}
@media(max-width:1200px){.home .hero{min-height:590px}.home .hero-image{height:610px}.home .hero h1{font-size:clamp(65px,7.3vw,92px)}.thinking-banner-inner{grid-template-columns:minmax(0,1fr) 195px;gap:30px}.thinking-banner-inner>p{padding-left:23px;font-size:13px}.thinking-banner h2{font-size:34px}}
@media(max-width:960px){.home .hero h1{font-size:74px}.thinking-banner-inner{grid-template-columns:1fr;gap:20px}.thinking-banner h2{font-size:34px}.thinking-banner-inner>p{font:12px/1.8 var(--sans);border-left:0;border-top:1px solid #8d5968;padding:16px 0 0}.thinking-banner-inner>p br{display:none}}
@media(max-width:640px){.home .hero{min-height:0}.home .hero-inner{padding-top:140px;padding-bottom:21px}.home .hero h1{font-size:clamp(51px,14.1vw,78px)}.home .hero-image{height:auto}.hero-eyebrow{font-size:8px;letter-spacing:1.7px;margin-bottom:17px}.thinking-banner{padding:27px 0 26px}.thinking-banner h2{font-size:clamp(21px,5.65vw,30px);line-height:1.8;letter-spacing:-.055em}.thinking-banner h2>span{max-width:100%}.thinking-banner-inner{gap:15px}.thinking-banner-inner>p{font-size:11px;padding-top:14px;line-height:1.9}.home .cases-section{padding-top:36px}}