:root{--ink:#172332;--muted:#566374;--line:#d4dce3;--paper:#f5f8fb;--blue:#344ee5;--blue-soft:#edf0ff;--teal:#07664f;--amber:#9e540a;--red:#a52a3e;--radius:8px;color-scheme:light;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);font-size:1.0rem;line-height:1.55}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;background:#fff}a{color:inherit;text-underline-offset:4px}a:hover{color:var(--blue)}button,select{font:inherit}button,select,.link-button{min-height:44px}button{padding:10px 16px;border:1px solid #9daabb;border-radius:5px;background:white;color:var(--ink);cursor:pointer;font-weight:600}button:hover:not(:disabled){background:#edf0f8;border-color:var(--blue)}button:disabled{opacity:.45;cursor:default}button.primary,.primary{background:var(--blue);color:#fff;border-color:var(--blue)}button.primary:hover:not(:disabled),.primary:hover{background:#243acc;color:white}.link-button{display:inline-flex;align-items:center;padding:12px 19px;text-decoration:none;border-radius:5px;font-weight:600}.wrap{max-width:1240px;margin:0 auto;padding-left:44px;padding-right:44px}.site-header{max-width:1328px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:24px 44px;border-bottom:1px solid var(--line);gap:24px}.wordmark{font-size:1.25rem;font-weight:750;text-decoration:none;letter-spacing:.025em;display:inline-flex;align-items:center;gap:8px}.wordmark b{font-weight:450;color:var(--muted)}.mark{height:28px;width:28px;background:var(--ink);color:white;border-radius:3px;display:inline-flex;align-items:center;justify-content:center;font-size:1.1875rem;position:relative;margin-right:5px}.mark span{font-size:0.8125rem;margin-top:7px}nav{display:flex;align-items:center;gap:26px;font-size:0.875rem}nav a{text-decoration:none}.source-nav{padding:8px 12px;border:1px solid var(--line);border-radius:4px}.intro{display:grid;grid-template-columns:1.1fr 1fr;gap:80px;padding-top:76px;padding-bottom:72px;align-items:center}.eyebrow{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;text-transform:uppercase;font-size:0.75rem;letter-spacing:.095em;font-weight:600;color:var(--muted);margin:0 0 15px}h1{font-size:clamp(42px,5.7vw,72px);letter-spacing:-.06em;line-height:1.02;margin:0 0 25px;font-weight:650}h1 span{color:var(--blue)}.lead{font-size:1.3125rem;line-height:1.5;letter-spacing:-.02em;max-width:570px;margin:0 0 16px}.intro-copy{font-size:1.0rem;color:var(--muted);max-width:580px;margin:0 0 25px}.proof-map{background:var(--ink);color:white;border:1px solid #243443;border-radius:7px;box-shadow:12px 12px 0 #edf0f4;padding:25px 28px}.map-header{font-size:0.75rem;font-family:ui-monospace,monospace;letter-spacing:.08em;color:#b7c4d5;display:flex;justify-content:space-between;padding-bottom:20px;border-bottom:1px solid #405062}.map-row{display:flex;gap:18px;align-items:center;border-bottom:1px solid #405062;padding:27px 0}.map-row h2{font-size:1.1875rem;font-weight:550;letter-spacing:-.015em;margin:0 0 5px}.map-row p{font-size:0.875rem;color:#bdcadb;margin:0}.map-index{font-size:0.75rem;color:#93a5ff;font-family:ui-monospace,monospace}.map-symbol{margin-left:auto;font-size:1.75rem;color:#a7b4ff;white-space:nowrap}.map-foot{font-size:0.75rem;color:#b7c4d5;margin:22px 0 0}.snapshot-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--paper)}.snapshot-strip .wrap{display:flex;justify-content:space-between;gap:20px;align-items:center;padding-top:17px;padding-bottom:17px;font-size:0.75rem}.snapshot-strip a{text-decoration:none;border-bottom:1px solid #a7b2be}.check{color:var(--teal);font-size:1.0rem}.section-heading{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:end;margin-bottom:28px}.section-heading h2{font-size:2.125rem;line-height:1.14;letter-spacing:-.04em;font-weight:600;margin:0}.section-heading>p{color:var(--muted);margin:0;font-size:1.0rem}.explorer-section{padding-top:70px;padding-bottom:66px}.demo-notice{background:var(--blue-soft);border-left:3px solid var(--blue);padding:15px 18px;font-size:0.875rem;line-height:1.6;color:#344369;margin-bottom:24px}.workbench{border:1px solid #adb9c6;border-radius:var(--radius);overflow:hidden;box-shadow:0 5px 18px #17233208}.toolbar{background:var(--paper);display:flex;justify-content:space-between;align-items:end;gap:22px;padding:22px 24px;border-bottom:1px solid var(--line)}.field{min-width:0}.field label{display:block;font-size:0.8125rem;font-weight:650;margin-bottom:6px}select{padding:10px 40px 10px 12px;background:white;border:1px solid #93a0b1;border-radius:4px;color:var(--ink);max-width:100%}.controls{display:flex;gap:8px;flex-wrap:wrap}.scenario-desc{font-size:0.875rem;color:var(--muted);padding:14px 24px;margin:0;border-bottom:1px solid var(--line);min-height:51px}.trace-grid{display:grid;grid-template-columns:1fr 1fr}.events-panel,.surface-panel{padding:23px 24px}.events-panel{border-right:1px solid var(--line)}.panel-heading{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:20px}.panel-heading h3{font-size:1.0rem;margin:0;font-weight:650}.mono{font-family:ui-monospace,monospace;font-size:0.75rem;color:var(--muted)}.events{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}.event{padding:11px 12px;border:1px solid var(--line);border-left:3px solid #c7cfd8;border-radius:4px;color:#758091;min-height:65px}.event.past{color:var(--ink);background:#f8fbfa;border-left-color:var(--teal)}.event.current{color:var(--ink);border-left-color:var(--blue);background:var(--blue-soft)}.event.failed{color:var(--red);border-color:#dca4b0;background:#fff4f6}.event-top{display:flex;gap:9px;font-family:ui-monospace,monospace;font-size:0.8125rem;align-items:center;flex-wrap:wrap}.event-top .event-state{font-family:inherit;margin-left:auto;font-size:0.75rem}.event-note{font-size:0.875rem;margin:5px 0 0;line-height:1.45}.panel-foot{font-size:0.75rem;color:var(--muted);margin:20px 0 0}.surface-node{border:1px solid var(--line);border-radius:4px;padding:13px 16px;margin-bottom:10px;position:relative;background:white}.surface-node .role{font:12px ui-monospace,monospace;text-transform:uppercase;letter-spacing:.06em;color:var(--blue);display:flex;justify-content:space-between;gap:10px}.surface-node p{font-size:1rem;line-height:1.5;margin:8px 0 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p{font-size:0.875rem;line-height:1.6;color:var(--muted);margin:0}.callout{font-size:0.875rem;line-height:1.7;color:var(--muted);margin:20px 0 0}.callout strong{color:var(--ink)}.evidence-section{padding:66px 0;background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:36px;margin-top:38px}.metric-number{font:600 58px/1 ui-monospace,monospace;letter-spacing:-.07em;color:var(--blue)}.metrics h3{font-size:1.0625rem;margin:15px 0 9px}.metrics p,.evidence-bottom p{font-size:0.875rem;color:var(--muted);margin:0;line-height:1.7}.evidence-bottom{display:grid;grid-template-columns:1fr 1fr;gap:65px;border-top:1px solid var(--line);margin-top:32px;padding-top:28px}.evidence-bottom h3{font-size:1.0625rem;margin:0 0 10px}.source-bar{display:flex;justify-content:space-between;gap:24px;font-size:0.8125rem;padding-top:26px;margin-top:28px;border-top:1px solid var(--line)}.source-bar>a{font-weight:600;color:var(--blue)}.source-bar>span{color:var(--muted)}.boundary-section{padding-top:68px;padding-bottom:65px}.boundary-grid{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.boundary-grid article{padding:28px}.boundary-grid article+article{border-left:1px solid var(--line);background:#fafbfd}.boundary-label{font:11px ui-monospace,monospace;letter-spacing:.07em;color:var(--teal)}.boundary-label.outside{color:var(--amber)}.boundary-grid h3{font-size:1.4375rem;letter-spacing:-.03em;font-weight:600;margin:12px 0 19px}.boundary-grid ul{padding-left:20px;margin:0;color:var(--muted);font-size:0.875rem}.boundary-grid li{padding-left:5px;margin-bottom:10px}.boundary-grid li:last-child{margin-bottom:0}footer.wrap{border-top:1px solid var(--line);padding-top:33px;padding-bottom:38px;display:grid;grid-template-columns:1fr 1fr;gap:70px}footer p{color:var(--muted);font-size:0.75rem;line-height:1.7;margin:12px 0 0}footer .wordmark{font-size:1.0625rem}a:focus-visible,button:focus-visible,select:focus-visible,pre:focus-visible{outline:3px solid #e8961f;outline-offset:4px}.skip{position:absolute;top:-100px;left:20px;z-index:10;background:var(--ink);color:white;padding:10px 16px}.skip:focus{top:10px}@media(max-width:950px){.wrap{padding-left:28px;padding-right:28px}.site-header{padding:20px 28px}nav{gap:18px}.intro{gap:38px;padding-top:50px;padding-bottom:52px}.proof-map{padding:21px}.map-row{gap:12px;padding:23px 0}.map-symbol{display:none}.section-heading{gap:40px}.snapshot-strip .wrap{flex-wrap:wrap;justify-content:flex-start;gap:12px 28px}.toolbar{align-items:stretch;flex-direction:column}.controls button{flex:1}.toolbar select{width:100%}}@media(max-width:660px){.site-header{padding:18px 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8px}.scenario-desc{padding:13px 16px;font-size:0.8125rem}.trace-grid{grid-template-columns:1fr}.events-panel,.surface-panel{padding:20px 16px}.events-panel{border-right:0;border-bottom:1px solid var(--line)}.event-top{font-size:0.75rem}.event-note{font-size:0.875rem}.status{padding:14px 16px}.request-panel{padding:22px 16px}.request-top{flex-direction:column;align-items:stretch;gap:18px}.request-top select{width:100%}pre{font-size:0.75rem;max-height:400px}.source-note{font-size:0.75rem}.policy-section{padding-bottom:45px}.policy-line{grid-template-columns:1fr 1fr}.policy-line>div{padding:19px 17px 19px 0}.policy-line>div+div{padding-left:17px}.policy-line>div:nth-child(3){border-left:0;padding-left:0;border-top:1px solid var(--line)}.policy-line>div:nth-child(4){border-top:1px solid var(--line)}.policy-line p{font-size:0.8125rem}.metrics{grid-template-columns:1fr;gap:25px}.metrics article{display:grid;grid-template-columns:90px 1fr;gap:4px 16px;align-items:start}.metric-number{grid-row:1/3;font-size:2.9375rem}.metrics h3{margin:0;font-size:1.0rem}.metrics p{font-size:0.8125rem}.evidence-bottom{grid-template-columns:1fr;gap:24px}.evidence-section{padding:44px 0}.source-bar{flex-direction:column;gap:13px}.boundary-section{padding-top:45px;padding-bottom:43px}.boundary-grid{grid-template-columns:1fr}.boundary-grid article{padding:23px}.boundary-grid article+article{border-left:0;border-top:1px solid var(--line)}footer.wrap{grid-template-columns:1fr;gap:14px;padding-top:26px;padding-bottom:30px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}