.brain-layout{display:grid;grid-template-columns:172px minmax(0,1fr);gap:46px}.brain-toc{position:sticky;top:24px;align-self:start;font-size:12px;color:var(--muted);padding-top:8px}.brain-toc>span{display:block;font:11px monospace;letter-spacing:.12em;margin-bottom:20px;color:var(--yellow)}.brain-toc a{display:block;border-left:1px solid var(--line);padding:8px 0 8px 13px;line-height:1.6}.brain-toc a:hover{color:var(--yellow);border-left-color:var(--yellow)}.brain-article{min-width:0}.brain-heading h1{font-size:clamp(30px,3.4vw,48px);line-height:1.35;font-weight:600;letter-spacing:-.045em;margin:18px 0 20px}.brain-heading>p{color:var(--soft);font-size:16px;max-width:780px;line-height:1.9}.brain-heading-foot{display:flex;gap:16px;align-items:center;flex-wrap:wrap;font-size:11px;color:var(--muted);margin:24px 0 36px}.brain-heading-foot a{margin-left:auto;color:var(--yellow)}.brain-section{border-top:1px solid var(--line);padding:36px 0 42px;scroll-margin-top:25px}.brain-section-title>span{font:11px monospace;color:var(--yellow);letter-spacing:.08em}.brain-section-title h2{font-size:26px;font-weight:600;letter-spacing:-.025em;line-height:1.5;margin:8px 0 20px}.brain-section p{font-size:14px;line-height:1.95;color:var(--soft)}.brain-intro{max-width:760px;margin-top:-5px;margin-bottom:27px}.brain-source{font-size:10px!important;color:var(--muted)!important;margin:22px 0 0!important}.brain-note{font-size:11px!important;line-height:1.9!important;color:var(--muted)!important;margin-top:18px}.brain-context-row{display:grid;grid-template-columns:110px repeat(3,minmax(0,1fr));gap:20px;padding:19px 0;border-bottom:1px solid #262623}.brain-context-row h3{font-size:12px;color:var(--muted);font-weight:500;margin:0;padding-top:3px}.brain-context-row b{font-size:15px;font-weight:550}.brain-context-row p{font-size:12px;margin:7px 0 0}.principle-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:35px}.principle-disc{aspect-ratio:1;border:1px solid #69634a;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-direction:column;background:#17160f;max-width:265px;margin:auto}.principle-disc small{font:10px monospace;color:var(--muted);letter-spacing:.06em}.principle-disc h3{font-size:clamp(16px,1.65vw,24px);font-weight:600;margin:10px 0;color:var(--yellow);letter-spacing:-.03em}.principle-disc>span{font-size:11px;color:var(--soft)}.principle-item>p{font-size:13px;margin:24px 5px 0;line-height:1.95}.dimension-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px;margin-top:27px}.dimension-item h3{font-size:14px;text-align:center;border:1px solid #777260;border-radius:50px;margin:0 0 12px;padding:10px 5px;font-weight:550;background:#1a1912;color:var(--yellow)}.dimension-item>div{min-height:225px;background:#171717;border-radius:18px;padding:22px 15px;display:flex;flex-direction:column}.dimension-item b{font-size:13px;font-weight:550}.dimension-item p{font-size:13px;line-height:1.95;margin:14px 0}.dimension-item small{font-size:10px;line-height:1.85;color:var(--muted);margin-top:auto}.brain-split{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,.9fr);gap:30px;align-items:start}.brain-subtitle{font-size:17px;font-weight:550;line-height:1.7;margin:0 0 15px}.brain-prompt{border:1px solid #5e573a;background:#15150f;padding:21px 22px;min-width:0}.brain-prompt-meta{display:flex;justify-content:space-between;gap:14px;font-size:10px;color:var(--muted)}.brain-prompt-meta span:first-child{color:var(--yellow)}.brain-prompt h3{font-size:17px;font-weight:550;margin:12px 0 16px}.brain-prompt-text{color:var(--ink)!important;font-size:13px!important;line-height:2!important;margin:0!important;white-space:pre-wrap}.brain-prompt-bottom{border-top:1px solid var(--line);margin-top:20px;padding-top:15px;display:flex;align-items:center;gap:15px;flex-wrap:wrap}.brain-prompt-bottom small{font-size:10px;color:var(--muted);flex:1;min-width:130px}.brain-prompt-bottom button{background:var(--yellow);color:#0b0b0b;font-size:12px;font-weight:600;padding:8px 15px;white-space:nowrap}.brain-prompt-bottom button:hover{background:#ffe873}.prompt-bridge{border-left:2px solid var(--yellow);padding-left:15px}.prompt-bridge>div{padding:6px 0}.prompt-bridge span{font-size:12px;font-weight:600;color:var(--ink)}.prompt-bridge p{font-size:12px;margin:4px 0}.brain-tool-note{margin-top:22px;border-top:1px solid var(--line);padding-top:15px}.brain-tool-note b{font-size:12px}.brain-tool-note p{font-size:12px;margin:5px 0}.brain-case{border:1px solid var(--line);padding:23px;margin-top:30px}.brain-case-title>span{font:10px monospace;letter-spacing:.06em;color:var(--yellow)}.brain-case h3{font-size:17px;margin:9px 0 22px;line-height:1.6;font-weight:550}.case-flow{display:grid;grid-template-columns:1fr 20px 1.7fr 20px 1fr;gap:16px;align-items:start}.case-flow small{color:var(--muted);font-size:11px}.case-flow p{font-size:12px;margin:8px 0}.case-flow>span{color:var(--yellow);align-self:center}.brain-case details{margin-top:20px;margin-bottom:0}.brain-case .brain-prompt{margin-top:18px}.brain-experience{margin-top:20px}.brain-experience p{font-size:12px}.selection-diagram{display:grid;grid-template-columns:1fr 35px 1fr 35px 1fr;align-items:center;gap:10px;margin:26px 0}.selection-diagram>div{padding:24px 20px;border:1px solid var(--line);min-height:170px;display:flex;justify-content:center;flex-direction:column}.selection-diagram small{font:10px monospace;color:var(--muted)}.selection-diagram h3{font-size:23px;margin:7px 0;font-weight:550}.selection-diagram p{font-size:12px;margin:7px 0}.selection-diagram b{font-size:12px;font-weight:500;color:var(--yellow)}.selection-plus,.selection-equals{font-size:25px;text-align:center;color:var(--yellow)}.selection-diagram .selection-result{border-color:#77704e;background:#1d1a0d}.selection-result h3{font-size:21px}.compact-case{margin-top:25px}.compact-case h3{font-size:14px;color:var(--muted);font-weight:500}.compact-case ul{padding-left:20px;color:var(--soft);font-size:13px}.compact-case li{margin:10px 0}.brain-check-strip{border-left:3px solid var(--yellow);padding:14px 19px;background:#16150f;margin-top:22px}.brain-check-strip p{font-size:13px;margin:9px 0 0}.variant-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:25px;margin:25px 0 0}.variant-grid>div{border-top:2px solid #6b6441;padding-top:19px}.variant-grid>div>span{font:10px monospace;color:var(--muted)}.variant-grid h3{font-size:20px;margin:8px 0 13px;font-weight:550}.variant-grid p{font-size:13px}.variant-example{border:1px solid var(--line);padding:17px 15px;margin-top:18px;min-height:192px;display:flex;flex-direction:column;align-items:center;text-align:center;justify-content:center}.variant-example b{font-size:12px;font-weight:550}.variant-example>span{color:var(--yellow);font-size:20px;margin:5px}.variant-example p{font-size:11px;color:var(--muted);margin-bottom:0}.brain-extension{display:grid;grid-template-columns:1fr 1fr;gap:30px;margin-top:28px;align-items:start}.brain-extension+.brain-extension{border-top:1px solid var(--line);padding-top:28px;margin-top:32px}.brain-extension h3{font-size:20px;line-height:1.6;font-weight:550;margin:0 0 15px}.brain-extension .brain-prompt h3{font-size:17px;margin-top:12px}.mini-process{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:20px 0}.mini-process span{font-size:11px;padding:7px 10px;border:1px solid #4c4a3b}.mini-process i{font-style:normal;color:var(--yellow)}.mini-process.vertical{align-items:stretch;flex-direction:column;gap:5px}.mini-process.vertical span{font-size:12px;padding:10px 14px}.mini-process.vertical i{align-self:center}.brain-blocker{padding-top:23px;scroll-margin-top:25px}.brain-blocker+.brain-blocker{border-top:1px solid var(--line);margin-top:35px;padding-top:30px}.blocker-heading{display:flex;gap:16px;align-items:baseline;margin-bottom:22px}.blocker-heading>span{font:11px monospace;color:var(--yellow);white-space:nowrap}.blocker-heading h3{font-size:19px;line-height:1.7;font-weight:550;margin:0}.brain-rule{font-size:18px!important;font-weight:550;color:var(--ink)!important;margin-top:0}.brain-rule span{color:var(--yellow);padding:0 5px}.wrong-right{display:grid;grid-template-columns:1fr;gap:12px;margin:15px 0}.wrong-right>div{padding:14px 17px;border-left:2px solid #666;background:#151515}.wrong-right>div:last-child{border-color:var(--yellow)}.wrong-right small{color:var(--muted);font-size:10px}.wrong-right p{font-size:12px;margin:5px 0 0}.priority-stack{display:flex;flex-direction:column;gap:8px;margin:18px 0}.priority-stack>div{border:1px solid var(--line);padding:11px;display:flex;gap:12px;align-items:center}.priority-stack>div:first-child{border-color:#837442}.priority-stack b{font:11px monospace;color:var(--yellow)}.priority-stack span{font-size:13px}.priority-stack small{font-size:10px;color:var(--muted);margin-left:auto}.brain-conclusion{font-size:22px!important;color:var(--ink)!important;line-height:1.8!important;max-width:740px}.brain-completion{border:1px solid var(--line);padding:24px;margin:28px 0}.brain-completion h3{font-size:17px;margin:0 0 9px;font-weight:550}.brain-completion ul{font-size:13px;color:var(--soft);padding-left:20px}.brain-completion li{margin:9px 0}.brain-source-links{display:flex;gap:20px;flex-wrap:wrap;margin:25px 0}.brain-source-links a{color:var(--yellow);font-size:12px}.brain-library{max-width:850px;margin:20px 0 30px}.brain-library a{display:flex;justify-content:space-between;padding:14px 0;border-bottom:1px solid var(--line);font-size:14px}.brain-library a span{color:var(--yellow);font-size:12px}.brain-prompt .fallback{flex-basis:100%}@media(min-width:1550px){.brain-section-title h2{font-size:29px}.brain-heading h1{font-size:49px}.principle-disc{max-width:275px}.dimension-item>div{min-height:220px}}@media(max-width:1150px){.brain-layout{grid-template-columns:145px 1fr;gap:30px}.brain-toc{font-size:11px}.brain-heading h1{font-size:36px}.brain-section-title h2{font-size:23px}.brain-context-row{grid-template-columns:80px repeat(3,1fr);gap:12px}.principle-grid{gap:16px}.principle-disc h3{font-size:17px}.principle-disc>span{font-size:10px}.principle-disc small{font-size:8px}.dimension-item>div{padding:17px 11px;min-height:265px}.dimension-item h3{font-size:12px}.brain-split{gap:24px;grid-template-columns:1fr 1fr}.brain-prompt{padding:18px}.brain-extension{gap:24px}.selection-diagram{grid-template-columns:1fr 20px 1fr 20px 1fr;gap:7px}.selection-diagram>div{padding:18px 13px;min-height:180px}.selection-diagram h3{font-size:21px}.selection-result h3{font-size:18px}.case-flow{gap:10px;grid-template-columns:1fr 14px 1.6fr 14px 1fr}.brain-prompt-bottom small{min-width:100px}.priority-stack small{display:none}}@media(max-width:850px){.brain-layout{display:block}.brain-toc{position:static;display:flex;gap:9px;flex-wrap:wrap;margin-bottom:28px;padding-bottom:16px;border-bottom:1px solid var(--line)}.brain-toc>span{display:none}.brain-toc a{padding:4px 8px;border:1px solid var(--line);font-size:10px}.brain-heading-foot a{margin-left:0}.brain-context-row{grid-template-columns:1fr 1fr 1fr;gap:15px}.brain-context-row h3{grid-column:1/-1}.brain-heading h1{font-size:34px}.dimension-item>div{min-height:240px}.principle-disc h3{font-size:18px}}@media(max-width:600px){.brain-page{padding-top:24px}.brain-heading h1{font-size:29px}.brain-heading>p{font-size:14px}.brain-heading-foot{gap:10px;font-size:10px}.brain-section{padding:27px 0 31px}.brain-section-title h2{font-size:22px;margin-bottom:18px}.brain-context-row{grid-template-columns:1fr;gap:15px}.brain-context-row>div{display:grid;grid-template-columns:94px 1fr;gap:12px}.brain-context-row b{font-size:13px}.brain-context-row p{font-size:12px;margin:0}.brain-context-row h3{font-size:11px}.brain-intro{font-size:13px!important}.principle-grid{grid-template-columns:1fr;gap:25px;margin-top:25px}.principle-item{display:grid;grid-template-columns:142px 1fr;gap:18px;align-items:center}.principle-disc{width:142px}.principle-disc h3{font-size:15px;margin:7px 0}.principle-disc>span{font-size:9px}.principle-disc small{font-size:8px}.principle-item>p{font-size:12px;margin:0}.dimension-grid{grid-template-columns:1fr;gap:12px}.dimension-item{display:grid;grid-template-columns:90px 1fr;align-items:stretch;gap:12px}.dimension-item h3{font-size:13px;margin:0;display:grid;place-items:center;border-radius:15px;line-height:1.8}.dimension-item>div{min-height:0;padding:17px 18px;border-radius:15px}.dimension-item p{margin:7px 0;font-size:12px}.dimension-item small{font-size:10px}.brain-split,.brain-extension{grid-template-columns:1fr;gap:21px}.brain-prompt{padding:19px}.brain-prompt-text{font-size:13px!important}.brain-subtitle{font-size:17px}.brain-case{padding:18px}.case-flow{grid-template-columns:1fr;gap:8px}.case-flow>span{transform:rotate(90deg);justify-self:center}.case-flow p{font-size:12px}.case-flow small{font-size:10px}.brain-case h3{margin-bottom:18px}.selection-diagram{grid-template-columns:1fr 24px 1fr;gap:9px}.selection-diagram>div{min-height:160px;padding:18px 14px}.selection-diagram h3{font-size:19px}.selection-equals{grid-column:1/-1;transform:rotate(90deg);font-size:21px}.selection-result{grid-column:1/-1;min-height:90px!important;text-align:center}.selection-result h3 br{display:none}.selection-result h3{font-size:21px}.selection-diagram p{font-size:11px}.selection-diagram b{font-size:11px}.selection-diagram small{font-size:8px}.variant-grid{grid-template-columns:1fr;gap:25px}.variant-grid>div{display:grid;grid-template-columns:1fr 1fr;column-gap:18px}.variant-grid>div>span{grid-column:1;align-self:start;font-size:9px}.variant-grid h3{grid-column:1;font-size:18px}.variant-grid>div>p{grid-column:1;margin:0;font-size:12px}.variant-example{grid-column:2;grid-row:1/4;margin:0;min-height:160px;padding:14px 10px}.variant-example b{font-size:11px}.variant-example p{font-size:10px}.brain-extension h3{font-size:19px}.blocker-heading{gap:10px;display:block;margin-bottom:17px}.blocker-heading h3{font-size:18px;margin-top:8px}.brain-rule{font-size:17px!important}.priority-stack small{display:block}.brain-conclusion{font-size:20px!important}.brain-completion{padding:20px}.brain-note{font-size:10px!important}.brain-source-links{display:block}.brain-source-links a{display:block;margin:12px 0;font-size:12px}.brain-toc{gap:7px}.brain-toc a{padding:4px 6px;font-size:10px}}