.brain-hero{background:#080a09;color:#fff;padding-top:30px;padding-bottom:0}
.brain-hero .breadcrumb{color:#c6cbc8;margin-bottom:54px}
.brain-hero .breadcrumb .icon{filter:invert(1)}
.brain-hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(32px,5vw,72px);align-items:center;padding-bottom:56px}
.brain-hero h1{font-size:clamp(42px,5.2vw,78px);line-height:1.04;letter-spacing:-.052em;max-width:650px;margin:22px 0 28px}
.brain-hero-copy>.eyebrow{color:var(--mint)}
.brain-dek{font-size:clamp(18px,1.55vw,22px);line-height:1.6;color:#c6cbc8;max-width:520px}
.brain-cta{display:inline-flex;align-items:center;gap:24px;background:var(--mint);color:#07150b;border-radius:var(--radius-control);padding:16px 24px;margin-top:30px;font-weight:800;font-size:15px;min-height:52px}
.brain-cta:hover{background:#9bffbd}.brain-hero :focus-visible{outline-color:var(--mint)}
.brain-readtime{font-size:12px;color:#b4beb8;margin-top:20px}
.brain-lab{background:#f2f7f4;color:var(--ink);border-radius:var(--radius-panel);padding:26px;box-shadow:0 16px 50px #0003;border:1px solid #dbe7df;min-width:0}
.brain-lab-header{border-bottom:1px solid #c9d6ce;padding-bottom:18px}
.brain-lab-header h2{font-size:23px;letter-spacing:-.035em}
.brain-lab-header p{font-size:12px;color:#5b6260;margin-top:7px}
.brain-case-controls{display:flex;gap:5px;padding:18px 0;flex-wrap:wrap}
.brain-case-controls button{font-size:12px;line-height:1.3;font-weight:700;border:1px solid #b8c9be;border-radius:var(--radius-control);background:transparent;padding:10px 11px;min-height:44px;flex:1}
.brain-case-controls button[aria-pressed=true]{background:#102a1c;color:white;border-color:#102a1c}
.brain-lab :focus-visible{outline-color:var(--teal)}
.brain-question{margin:0 0 16px auto;max-width:91%;border:1px solid #b9c8bf;border-radius:12px 12px 0 12px;padding:16px;background:#fff}
.brain-role{display:block;color:#58645c;text-transform:uppercase;letter-spacing:.1em;font-size:10px;margin-bottom:7px}
.brain-question p{font-size:15px;font-weight:700;line-height:1.5}
.brain-answer{background:#fff;border:1px solid #c4d8cb;border-left:3px solid var(--teal);border-radius:0 12px 12px 12px;padding:18px}
.brain-status{color:#005957;font-size:11px;text-transform:uppercase;letter-spacing:.09em;font-weight:800}
.brain-answer[data-tone=missing]{border-left-color:#756000}.brain-answer[data-tone=missing] .brain-status{color:#756000}
.brain-answer[data-tone=conflict]{border-left-color:#655197}.brain-answer[data-tone=conflict] .brain-status{color:#655197}
.brain-answer>p{font-size:15px;line-height:1.7;margin:10px 0 16px}
.brain-evidence{border-top:1px solid #d3ded7;padding-top:12px}
.brain-evidence summary{cursor:pointer;font-size:12px;font-weight:700;line-height:1.55;min-height:44px}
.brain-evidence summary span{display:block;margin-left:15px;font-size:11px;font-weight:400;color:#52675a}
.brain-evidence blockquote{margin:12px 0 0;padding:12px;background:#edf5ef;font-size:13px;line-height:1.65}
.brain-lesson{font-size:12px;line-height:1.65;color:#405047;margin-top:16px;min-height:40px}
.brain-lab-note{font-size:11px;color:#58645c;border-top:1px solid #c9d6ce;padding-top:12px;margin-top:12px}
.brain-route{display:flex;align-items:center;gap:22px;flex-wrap:wrap;border-top:1px solid #363d39;padding:24px 0;font-size:14px}
.brain-route>span{color:#b4beb8;font-size:12px;margin-right:auto}.brain-route .icon{filter:invert(1);width:18px;height:18px}
.brain-reading .article-section{scroll-margin-top:110px}.brain-reading .article-body{min-width:0}
.brain-flow{margin:36px 0;background:#f1f6f3;border:1px solid #d1ddd6;border-radius:16px;padding:28px;overflow:hidden}
.brain-flow figcaption h3{font-size:26px;margin:9px 0}.brain-flow figcaption p{font-size:14px!important;margin:0 0 22px!important}
.brain-flow .eyebrow{font-size:11px;color:#476052}
.brain-flow-steps{list-style:none;margin:0!important;padding:0!important;display:grid;grid-template-columns:1fr 1fr;gap:22px}
.brain-flow-steps li{margin:0!important;position:relative;padding:0!important}
.brain-flow-steps li:nth-child(odd)::after{content:'';position:absolute;top:50%;left:100%;width:22px;border-top:1px solid #4b6e5c}
.brain-flow-steps li:nth-child(2)::after{content:'';position:absolute;top:100%;left:50%;height:22px;border-left:1px solid #4b6e5c}
.brain-flow-steps li:nth-child(3){grid-column:2;grid-row:2}
.brain-flow-steps li:nth-child(3)::after{left:auto;right:100%}
.brain-flow-steps li:nth-child(4){grid-column:1;grid-row:2}
.brain-flow-steps button{width:100%;min-height:84px;padding:14px;border:1px solid #9bb2a4;border-radius:8px;background:white;text-align:left;font-size:14px;font-weight:700;line-height:1.4}
.brain-flow-steps button>span{display:block;font-size:11px;color:#567261;font-weight:400;margin-bottom:6px}
.brain-flow-steps button[aria-pressed=true]{background:#0b2f21;border-color:#0b2f21;color:white}
.brain-flow-steps button[aria-pressed=true]>span{color:#a4e4bf}
.brain-flow-branches{position:relative;margin-top:22px;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.brain-flow-branches::before{content:'';position:absolute;left:25%;top:-22px;height:22px;border-left:1px solid #4b6e5c}
.brain-flow-branches>div{padding:13px 14px;border-radius:8px;background:#d6eedf;border:1px solid #adcbb9;line-height:1.4}
.brain-flow-branches>div:last-child{background:#e9e3f6;border-color:#c7bfda}
.brain-flow-branches span{display:block;font-size:11px;margin-bottom:5px}.brain-flow-branches strong{font-size:14px}
.brain-flow-detail{margin-top:24px;padding-top:18px;border-top:1px solid #bfcec5;min-height:110px}
.brain-flow-detail strong{font-size:15px}.brain-flow-detail p{font-size:14px!important;line-height:1.65!important;margin:8px 0 0!important}
.brain-diagram-note{font-size:11px!important;line-height:1.6!important;margin:16px 0 0!important;color:#52675a}
.brain-setup{margin-top:30px}.brain-setup-list{list-style:none;padding:0!important;margin:0!important}
.brain-setup-list li{display:flex;gap:22px;padding:24px 0!important;border-top:1px solid var(--line);margin:0!important}
.brain-setup-list li>span{font:400 28px/1.1 var(--numeric);color:var(--teal);min-width:35px}
.brain-setup-list h3{font-size:22px;margin:0 0 12px}.brain-setup-list p{margin:0!important;font-size:17px!important}
.brain-inline-source{font-size:14px!important}.brain-inline-source a,.brain-route-detail a{text-decoration:underline;text-underline-offset:4px;color:var(--teal)}
.brain-route-detail{background:#f1f6f3;border:1px solid #cedbd3;border-radius:8px;margin-top:26px}
.brain-route-detail summary{padding:20px;cursor:pointer;line-height:1.5;font-size:16px;font-weight:700}.brain-route-detail>div{padding:0 20px 20px}.brain-route-detail p{font-size:16px!important}.brain-route-detail a{font-size:14px}
.brain-download{padding:24px;background:#0b2f21;color:white;border-radius:12px;margin:30px 0;display:flex;align-items:center;gap:24px}
.brain-download .eyebrow{color:#b2e8c7;font-size:11px}.brain-download h3{font-size:24px;margin:12px 0}.brain-download p{font-size:15px!important;margin:0!important;color:#d2e5da}
.brain-download a{font-size:14px;font-weight:700;white-space:nowrap;background:var(--mint);color:#102a1c;padding:14px 20px;border-radius:4px}
.brain-reading .article-code pre,.brain-reading .article-code code{white-space:pre-wrap;overflow-wrap:anywhere;word-break:normal}.brain-reading .article-code .code-toolbar{flex-wrap:wrap;gap:12px}
@media(max-width:900px){.brain-hero-grid{grid-template-columns:1fr;gap:36px}.brain-hero h1{font-size:clamp(42px,8vw,68px);max-width:700px}.brain-dek{max-width:650px}.brain-lab{max-width:680px;width:100%}.brain-hero .breadcrumb{margin-bottom:32px}.brain-route>span{width:100%}.brain-route{gap:16px}.brain-download{align-items:flex-start;flex-direction:column}}
@media(max-width:520px){.brain-hero{padding-top:24px}.brain-hero .breadcrumb{font-size:12px;gap:18px}.brain-hero h1{font-size:45px;line-height:1.08}.brain-dek{font-size:18px}.brain-lab{padding:18px}.brain-lab-header h2{font-size:22px}.brain-case-controls{gap:5px}.brain-case-controls button{font-size:11px;padding:9px 6px}.brain-question{max-width:95%}.brain-answer{padding:15px}.brain-readtime{line-height:1.6}.brain-route{gap:10px;font-size:12px}.brain-route .icon{width:14px}.brain-flow{padding:19px;margin-inline:0}.brain-flow-steps{gap:18px}.brain-flow-steps button{font-size:12px;padding:12px;min-height:90px}.brain-flow-steps li:nth-child(odd)::after{width:18px}.brain-flow-steps li:nth-child(2)::after{height:18px}.brain-flow-branches{gap:10px}.brain-flow-branches strong{font-size:12px}.brain-flow-branches>div{padding:12px 10px}.brain-flow-detail{min-height:140px}.brain-setup-list li{gap:14px}.brain-setup-list h3{font-size:21px}}
/* Both outcomes branch from the evidence-sufficiency step. */
.brain-flow-branches{gap:22px}
.brain-flow-branches::before{left:calc(25% - 5.5px);height:11px}
.brain-flow-branches::after{content:'';position:absolute;left:calc(25% - 5.5px);right:calc(25% - 5.5px);top:-11px;border-top:1px solid #4b6e5c}
.brain-flow-branches>div{position:relative}
.brain-flow-branches>div::before{content:'';position:absolute;left:50%;top:-12px;height:11px;border-left:1px solid #4b6e5c}

/* Long instructions are prose, not a horizontal programming specimen. */
.brain-reading .article-code pre{font-size:14px}
.brain-reading .code-toolbar>span:first-child{flex:1 1 180px;min-width:0}
.brain-reading .code-toolbar button{flex:0 0 auto}
.brain-reading .code-toolbar [role=status]:empty{display:none}
.brain-reading .article-section>.text-link,.brain-reading .article-section>p>.text-link{white-space:normal;overflow-wrap:anywhere}
.brain-records{display:none}
@media(max-width:900px){
  .brain-reading{grid-template-columns:minmax(0,1fr)}
  .brain-reading .article-aside{position:static}
  .brain-table-desktop{display:none}
  .brain-records{display:block;margin:32px 0;border-top:2px solid var(--ink)}
  .brain-records>h3{font-size:15px;line-height:1.6;margin:0;padding:18px 0;border-bottom:1px solid var(--line)}
  .brain-record{padding:22px 0;border-bottom:1px solid var(--line);overflow-wrap:anywhere}
  .brain-record h4{font-size:20px;line-height:1.4;letter-spacing:-.025em;margin:0 0 16px}
  .brain-record dl{margin:0;display:grid;gap:14px}
  .brain-record dt{font-size:12px;line-height:1.5;font-weight:700;color:var(--teal);margin-bottom:4px}
  .brain-record dd{font-size:16px;line-height:1.65;margin:0}
  .brain-reading .article-code pre{padding:18px}
}

.brain-reading .article-table{table-layout:fixed}
.brain-reading .article-table th,.brain-reading .article-table td{min-width:0;overflow-wrap:anywhere}