:root{--white:#fff;--paper:#f4f4ef;--ink:#161716;--muted:#62645f;--line:#b7b9b2;--green:#16a66a;--green-soft:#ccefdc;--red:#d94869;--red-soft:#f6c8d3;--blue:#315ad9;--yellow:#f2d33f;--header:54px;font-family:"Cabinet Grotesk","Helvetica Neue",Arial,sans-serif;letter-spacing:0;color-scheme:light}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;overflow-x:clip;background:var(--paper);color:var(--ink);font-size:15px;line-height:1.4;letter-spacing:0}button,input,select{font:inherit;letter-spacing:0}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.48}[hidden]{display:none!important}.skip-link{position:fixed;z-index:100;top:6px;left:6px;transform:translateY(-160%);background:var(--ink);color:white;padding:9px}.skip-link:focus{transform:none}
.identity-rail{position:sticky;top:0;z-index:50;min-height:var(--header);display:flex;align-items:center;justify-content:space-between;gap:12px;padding:7px 22px;border-bottom:1px solid var(--ink);background:var(--white)}.brand{min-width:0;display:flex;align-items:center;gap:10px;color:inherit;text-decoration:none;font-weight:800;white-space:nowrap}.brand-mark{width:34px;height:34px;display:grid;place-items:center;flex:0 0 auto;border-radius:4px;background:var(--ink);color:white;font-size:11px}.brand-short,.rail-short{display:none}.rail-proof{font:700 10px ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--muted);white-space:nowrap}
main{width:100%;max-width:100%}.workbench{padding:14px 22px 20px;border-bottom:1px solid var(--ink)}.workbench-grid{width:min(1480px,100%);margin:auto;display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:20px;align-items:start}.intake{min-width:0}.context-line{margin:0 0 6px;color:#08794a;font-size:11px;font-weight:850;text-transform:uppercase}h1{max-width:920px;margin:0;font-size:52px;line-height:.96;font-weight:820}h2,h3,p{letter-spacing:0}.lede{max-width:700px;margin:9px 0;color:#383a36;font-size:15px}.boundary{margin:0 0 8px;padding:7px 9px;border-left:4px solid var(--red);background:var(--red-soft);font-size:11px}.archive-actions,.primary-actions,.result-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.button{min-height:42px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--ink);border-radius:5px;padding:9px 13px;font-weight:780;line-height:1;white-space:nowrap}.light{background:white;color:var(--ink)}.quiet{background:transparent;color:var(--ink)}.primary{background:var(--ink);color:white}.blue{background:var(--blue);border-color:var(--blue);color:white}.button:hover:not(:disabled),.policy-presets button:hover,.accordion-tabs button:hover,.assessment button:hover{transform:translateY(-1px)}button:focus-visible,input:focus-visible,select:focus-visible,a:focus-visible,.result-shell:focus{outline:3px solid var(--blue);outline-offset:2px}.load-meter{height:4px;margin:8px 0;background:#d8d9d3}.load-meter i{display:block;width:0;height:100%;background:var(--green);transition:width .2s}.controls-grid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(150px,.6fr);gap:8px}.controls-grid label{display:grid;gap:3px;font-size:11px;font-weight:760}.controls-grid select,.controls-grid input{width:100%;height:40px;border:1px solid var(--ink);border-radius:4px;background:white;color:var(--ink);padding:7px 9px}.check-row{min-height:34px;display:flex;align-items:center;gap:8px;font-size:12px;font-weight:700}.check-row input{width:18px;height:18px;accent-color:var(--red)}.status-line{min-height:31px;margin:3px 0 7px;padding:6px 8px;border-left:3px solid var(--blue);background:#dce4fa;color:#223664;font-size:11px}.status-line.success{border-color:var(--green);background:var(--green-soft);color:#144b32}.status-line.error{border-color:var(--red);background:var(--red-soft);color:#6d1730}.primary-actions .button{flex:1 1 180px}
.result-shell{min-width:0;min-height:550px;padding:14px;border:1px solid var(--ink);border-radius:6px;background:var(--white);box-shadow:7px 7px 0 var(--ink);scroll-margin-top:calc(var(--header) + 8px)}.empty-state{min-height:520px;display:grid;place-content:center;justify-items:center;gap:16px;text-align:center;color:var(--muted)}.empty-state[hidden]{display:none!important}.empty-state span{font:800 42px ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--blue)}.empty-state p{max-width:420px;margin:0}.proof-product{margin:0 0 5px;font-size:12px;font-weight:850;text-transform:none}.result-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.result-heading h2{margin:0;font-size:24px;line-height:1}.policy-presets{display:grid;grid-template-columns:1fr 1fr;flex:0 0 auto;border:1px solid var(--ink);border-radius:4px;overflow:hidden}.policy-presets button{min-height:36px;border:0;background:white;padding:6px 9px;font-size:11px;font-weight:780;white-space:nowrap}.policy-presets button+button{border-left:1px solid var(--ink)}.runtime-visual{margin:7px 0 0;color:var(--muted);font:8px/1.25 ui-monospace,SFMono-Regular,Menlo,monospace;overflow-wrap:anywhere}.result-summary{margin:5px 0 8px;font-weight:750}.metrics-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--ink);border-left:1px solid var(--ink)}.metrics-grid>div{min-width:0;min-height:55px;padding:6px 8px;border-right:1px solid var(--ink);border-bottom:1px solid var(--ink)}.metrics-grid span{display:block;color:var(--muted);font-size:9px;text-transform:uppercase}.metrics-grid strong{display:block;margin-top:2px;font-size:17px;line-height:1.1;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}.graph-figure{margin:9px 0 0}.graph-figure figcaption{display:flex;justify-content:space-between;gap:10px;font-size:10px;text-transform:uppercase}.graph-figure figcaption strong{color:var(--blue)}#memory-graph{width:100%;height:auto;display:block;aspect-ratio:12/5;border-bottom:1px solid var(--line)}#memory-graph text{font-family:"Cabinet Grotesk",Arial,sans-serif}.graph-fallback{color:var(--red)}.provenance-carousel{min-height:54px;display:grid;grid-template-columns:34px minmax(0,1fr) 34px;gap:8px;align-items:center;border-bottom:1px solid var(--line)}.provenance-carousel button{width:32px;height:32px;border:1px solid var(--ink);border-radius:50%;background:white}.provenance-carousel div{min-width:0;display:grid}.provenance-carousel strong{font-size:12px}.provenance-carousel span,.provenance-carousel small{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--muted);font:9px ui-monospace,SFMono-Regular,Menlo,monospace}.accordion-tabs{display:flex;margin-top:8px}.accordion-tabs button{flex:1;min-height:34px;border:1px solid var(--ink);background:white;color:var(--ink);font-size:11px;font-weight:780}.accordion-tabs button+button{border-left:0}.accordion-tabs button[aria-selected="true"]{flex:1.6;background:var(--ink);color:white}.accordion-panel{min-height:46px;padding:7px 9px;border:1px solid var(--ink);border-top:0;font-size:10px;overflow-wrap:anywhere}.accordion-panel ul{margin:0;padding-left:16px}.result-actions{justify-content:space-between;margin-top:8px}.result-actions span{max-width:260px;color:var(--muted);font-size:9px;text-align:right}
.path-marquee{overflow:hidden;border-bottom:1px solid var(--ink);background:var(--yellow)}.path-marquee div{width:max-content;padding:12px 0;font:800 11px ui-monospace,SFMono-Regular,Menlo,monospace;white-space:nowrap;animation:marquee 28s linear infinite}@keyframes marquee{to{transform:translateX(-50%)}}
.reasoning-band{padding:120px 22px;background:var(--ink);color:white}.reasoning-intro,.sheet-stack,.assessment{width:min(1180px,100%);margin-inline:auto}.reasoning-intro{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.5fr);gap:40px;align-items:end}.reasoning-intro .context-line{color:#70e1ac}.reasoning-intro h2{max-width:760px;margin:0;font-size:46px;line-height:1.02}.sheet-stack{margin-top:60px;display:grid;gap:28px}.stack-sheet{position:relative;min-height:180px;padding:24px;border:1px solid #747671;border-radius:4px;background:#242624}.stack-sheet:nth-child(2){background:#321e25}.stack-sheet:nth-child(3){background:#222b44}.stack-sheet span{color:#85e4b3;font-size:11px;text-transform:uppercase}.stack-sheet h3{margin:10px 0;font-size:27px}.stack-sheet p{max-width:820px;margin:0;color:#d1d3ce;font-size:18px}.assessment{margin-top:70px;padding-top:25px;border-top:1px solid #777}.assessment h3{font-size:25px}.assessment div{display:flex;gap:8px;flex-wrap:wrap}.assessment button{min-height:42px;border:1px solid white;border-radius:4px;background:white;color:var(--ink);padding:8px 14px;font-weight:800}.assessment p{padding:10px;border-left:4px solid var(--blue);background:#252b3d}.assessment p.correct{border-color:var(--green);background:#173d2b}.assessment p.incorrect{border-color:var(--red);background:#4a1e2b}.limits-band{padding:110px 22px;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(280px,.8fr);gap:70px;align-items:end;background:var(--red-soft)}.limits-band h2{max-width:780px;margin:0;font-size:44px;line-height:1.04}.limits-band>p{max-width:600px;margin:0;font-size:18px}footer{min-height:90px;display:flex;justify-content:space-between;align-items:flex-end;gap:20px;padding:22px;background:white;font-size:11px}
#graph-proof{text-transform:none}
@media(max-width:1000px){.workbench-grid{grid-template-columns:1fr}.result-shell{min-height:0}.empty-state{min-height:300px}}
@media(max-width:700px){:root{--header:52px}.identity-rail{padding:7px 11px}.brand-full,.rail-full{display:none}.brand-short,.rail-short{display:inline}.brand{font-size:12px}.brand-mark{width:30px;height:30px}.workbench{padding:12px 10px 20px}.workbench-grid{gap:16px}h1{font-size:38px;line-height:.98}.lede{font-size:13px}.boundary{font-size:10px}.archive-actions{display:grid;grid-template-columns:1.3fr 1fr .7fr}.archive-actions .button{width:100%;padding-inline:7px;font-size:11px}.controls-grid{grid-template-columns:1fr .7fr}.result-shell{padding:11px;box-shadow:4px 4px 0 var(--ink)}.result-heading{display:grid}.policy-presets{width:100%}.policy-presets button{min-height:40px}.metrics-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.metrics-grid>div{min-height:57px}.metrics-grid strong{font-size:16px}#memory-graph{aspect-ratio:3/2}.result-actions{align-items:stretch}.result-actions .button{width:100%}.result-actions span{max-width:none;text-align:left}.reasoning-band,.limits-band{padding:75px 12px}.reasoning-intro,.limits-band{grid-template-columns:1fr;gap:25px}.reasoning-intro h2,.limits-band h2{font-size:35px}.stack-sheet{padding:18px}.stack-sheet h3{font-size:23px}.stack-sheet p{font-size:16px}footer{align-items:flex-start;flex-direction:column}}
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