.crumb{max-width:var(--doc-w);margin:0 auto;padding:22px 40px;font-size:14.5px;color:var(--ink-soft)}.crumb a:hover{color:var(--ink)}.crumb span{margin:0 6px}.crumb .crumb__here,.crumb span{color:var(--ink-faint)}.stage{margin:0 0 40px}.stage__inner{background:var(--stage-bg,var(--band));border-radius:12px;padding:32px 24px;display:grid;place-items:center}.stage__inner svg{width:100%;max-width:920px;height:auto;display:block}:root[data-theme=dark] .stage__inner{background-color:var(--paper);background-blend-mode:multiply;--svg-white:#211f27;--svg-stroke:#b7b2c1;--svg-ink:#f1eff5;--svg-muted:#c0bbc9;--svg-muted-strong:#aaa5b4;--svg-faint:#8d8898;--svg-accent:#b9adff;--svg-good:#78d3ae;--svg-green:#6bc49b;--svg-bad:#ff8b80;--svg-red-wash:#4b3039;--svg-blue-wash:#2b4056;--svg-green-wash:#30452f;--svg-purple-wash:#3a345d;--svg-teal-wash:#2c4b47;--svg-gold:#fcbf04;--svg-gold-wash:#382e12;--svg-gold-stroke:#fcbf04;--svg-on-gold:#0b0b0b;--svg-green-soft:rgba(107,196,155,0.16)}@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .stage__inner{background-color:var(--paper);background-blend-mode:multiply;--svg-white:#211f27;--svg-stroke:#b7b2c1;--svg-ink:#f1eff5;--svg-muted:#c0bbc9;--svg-muted-strong:#aaa5b4;--svg-faint:#8d8898;--svg-accent:#b9adff;--svg-good:#78d3ae;--svg-green:#6bc49b;--svg-bad:#ff8b80;--svg-red-wash:#4b3039;--svg-blue-wash:#2b4056;--svg-green-wash:#30452f;--svg-purple-wash:#3a345d;--svg-teal-wash:#2c4b47;--svg-gold:#fcbf04;--svg-gold-wash:#382e12;--svg-gold-stroke:#fcbf04;--svg-on-gold:#0b0b0b;--svg-green-soft:rgba(107,196,155,0.16)}}.stage__cap{margin:12px 0 0;font-size:14px;color:var(--ink-soft);text-align:center}.doc{max-width:var(--doc-w);margin:56px auto 0;padding:56px 40px 140px;border-top:1px solid var(--rule-soft);display:grid;grid-template-columns:var(--nav-w) minmax(0,1fr);gap:var(--doc-gap);align-items:start}.doc .secnav{position:sticky;top:96px;align-self:start}.doc__col{min-width:0}.secnav__list{display:flex;flex-direction:column;gap:12px}.secnav a{font-size:15px;color:var(--ink-faint);transition:color .15s}.secnav a:hover{color:var(--ink-mid)}.secnav a.is-active{color:var(--ink);font-weight:600}.prose{max-width:var(--col);margin:0 auto}.prose h1{font-family:var(--serif);font-weight:400;font-size:40px;line-height:1.45;letter-spacing:.01em;margin:0 0 28px}.prose h2{font-size:15px;font-weight:600;letter-spacing:.09em;color:var(--ink-faint);text-transform:none;margin:68px 0 22px;padding-bottom:12px;border-bottom:1px solid var(--rule-soft)}.prose h3{font-size:17px;font-weight:600;margin:34px 0 10px}.prose p{margin:0 0 20px;color:var(--ink-mid)}.prose>p:first-of-type{color:var(--ink);font-size:18px}.prose strong{color:var(--ink);font-weight:600}.prose ul{margin:0 0 20px;padding-left:20px}.prose li{margin-bottom:10px;color:var(--ink-mid)}.lede{font-size:21px;line-height:1.7;color:var(--ink);margin:0 0 26px;font-weight:500}.tbl{width:100%;border-collapse:collapse;font-size:14.5px;line-height:1.72}.tbl th{text-align:left;font-weight:600;font-size:13px;color:var(--ink-soft);letter-spacing:.02em;padding:11px 16px;background:#f7f6f9;border-bottom:1px solid var(--rule)}.tbl th:first-child{border-radius:6px 0 0 0}.tbl th:last-child{border-radius:0 6px 0 0}.tbl td{padding:14px 16px;vertical-align:top;color:var(--ink-mid);border-bottom:1px solid var(--rule-soft)}.tbl tr:last-child td{border-bottom:0}.tbl tbody tr:hover td,.tbl tr:hover td{background:#fafafb}.tbl td:first-child{color:var(--ink)}.pager{max-width:var(--doc-w);margin:0 auto;padding:28px 40px 72px calc(40px + var(--nav-w) + var(--doc-gap));border-top:1px solid var(--rule-soft);display:grid;grid-template-columns:1fr 1fr;gap:28px}.pager__cell{min-width:0}.pager__cell--next{text-align:right}a.pager__cell:hover .pager__title{color:var(--ink)}.pager__kicker{display:block;margin-bottom:8px;font-size:13px;letter-spacing:.02em;color:var(--ink-soft)}.pager__title{display:block;font-size:16.5px;font-weight:600;line-height:1.5;color:var(--ink-mid);transition:color .15s}@media (max-width:1180px){.doc{grid-template-columns:minmax(0,1fr)}.stage{max-width:var(--col);margin-left:auto;margin-right:auto}.doc .secnav{display:none}.pager{max-width:var(--doc-w);padding-left:40px;padding-right:40px}}@media (max-width:860px){.crumb,.doc,.pager{padding-left:22px;padding-right:22px}.prose h1{font-size:32px}.stage__inner{padding:20px 14px}}@media (max-width:640px){.pager{grid-template-columns:1fr;gap:20px}.pager__cell--next{text-align:left}.stage__inner{padding:14px 8px}}.diagram{margin:36px 0;background:var(--paper);border:1px solid var(--rule);border-radius:12px;padding:24px;box-shadow:0 1px 3px rgba(0,0,0,.04);--diagram-board-bg:#f8f7f5;--diagram-dot:rgba(22,21,26,0.08);--c-red:#d9383a;--c-red-wash:#fdf3f3;--c-red-border:#fbcaca;--c-purple-wash:#f3f1fd;--c-purple-border:#d4ccfb;--c-green-wash:#eef7f3;--c-green-border:#aee3cf;--c-blue-wash:#eff5ff;--c-blue-border:#bfdbfe;--c-amber-wash:#fef9ee;--c-amber-border:#fde29f;--c-neutral-wash:#f4f3f6;--c-neutral-border:#dedce3}:root[data-theme=dark] .diagram{--diagram-board-bg:#131217;--diagram-dot:rgba(241,239,245,0.06);--c-red:#f87171;--c-red-wash:rgba(248,113,113,0.12);--c-red-border:rgba(248,113,113,0.3);--c-purple-wash:rgba(167,154,245,0.12);--c-purple-border:rgba(167,154,245,0.3);--c-green-wash:rgba(52,211,153,0.12);--c-green-border:rgba(52,211,153,0.3);--c-blue-wash:rgba(96,165,250,0.12);--c-blue-border:rgba(96,165,250,0.3);--c-amber-wash:rgba(251,191,36,0.12);--c-amber-border:rgba(251,191,36,0.3);--c-neutral-wash:rgba(158,153,169,0.1);--c-neutral-border:rgba(158,153,169,0.25)}@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .diagram{--diagram-board-bg:#131217;--diagram-dot:rgba(241,239,245,0.06);--c-red:#f87171;--c-red-wash:rgba(248,113,113,0.12);--c-red-border:rgba(248,113,113,0.3);--c-purple-wash:rgba(167,154,245,0.12);--c-purple-border:rgba(167,154,245,0.3);--c-green-wash:rgba(52,211,153,0.12);--c-green-border:rgba(52,211,153,0.3);--c-blue-wash:rgba(96,165,250,0.12);--c-blue-border:rgba(96,165,250,0.3);--c-amber-wash:rgba(251,191,36,0.12);--c-amber-border:rgba(251,191,36,0.3);--c-neutral-wash:rgba(158,153,169,0.1);--c-neutral-border:rgba(158,153,169,0.25)}}.diagram__header{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:18px;flex-wrap:wrap;gap:8px}.diagram__title-group{display:flex;align-items:center;gap:10px}.diagram__tag{font-size:11px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-weight:700;padding:3px 8px;border-radius:4px;letter-spacing:.04em}.diagram__tag--blue{background:var(--c-blue-wash);color:var(--c-blue);border:1px solid var(--c-blue-border)}.diagram__tag--purple{background:var(--c-purple-wash);color:var(--c-purple);border:1px solid var(--c-purple-border)}.diagram__tag--green{background:var(--c-green-wash);color:var(--c-green);border:1px solid var(--c-green-border)}.diagram__tag--amber{background:var(--c-amber-wash);color:var(--c-amber);border:1px solid var(--c-amber-border)}.diagram__title{font-size:16px;font-weight:700;color:var(--ink)}.diagram__desc{font-size:13px;color:var(--ink-soft);margin-top:4px;width:100%}.diagram__canvas{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}.diagram__board{background-color:var(--diagram-board-bg);background-image:radial-gradient(var(--diagram-dot) 1px,transparent 1px);background-size:16px 16px;border:1px solid var(--rule);border-radius:8px;padding:20px;position:relative;min-width:600px}.diagram__grid{display:grid;grid-template-columns:210px 1fr;gap:16px}@media (max-width:760px){.diagram__grid{grid-template-columns:1fr}}.diagram__pillar{background:var(--paper);border:1.5px dashed var(--c-neutral-border);border-radius:8px;padding:14px;display:flex;flex-direction:column;gap:10px}.diagram__pillar-header{font-size:13px;font-weight:700;color:var(--ink);display:flex;align-items:center;gap:6px;padding-bottom:6px;border-bottom:1px solid var(--rule)}.diagram__pillar-subtitle{font-size:10.5px;color:var(--ink-soft);margin-top:-4px}.diagram__pillar-cards{display:flex;flex-direction:column;gap:8px}.diagram__pillar-card{background:var(--c-neutral-wash);border:1px solid var(--c-neutral-border);border-radius:6px;padding:8px 10px}.diagram__pillar-card-title{font-size:12px;font-weight:700;color:var(--ink);margin-bottom:2px}.diagram__pillar-card-desc{font-size:10.5px;color:var(--ink-soft);line-height:1.35}.diagram__stack{display:flex;flex-direction:column;gap:14px}.diagram__layer{background:var(--paper);border:1px solid var(--rule);border-radius:8px;padding:14px;box-shadow:0 1px 3px rgba(0,0,0,.04)}.diagram__layer--trusted{border-color:var(--c-purple-border)}.diagram__layer--untrusted{border-color:var(--c-green-border)}.diagram__layer--assets{border-color:var(--c-blue-border)}.diagram__layer-bar{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;flex-wrap:wrap;gap:6px}.diagram__layer-name{font-size:13px;font-weight:700;color:var(--ink)}.diagram__zone{font-size:10px;font-weight:600;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;padding:2px 6px;border-radius:4px;letter-spacing:.03em}.diagram__zone--purple{background:var(--c-purple-wash);color:var(--c-purple);border:1px solid var(--c-purple-border)}.diagram__zone--green{background:var(--c-green-wash);color:var(--c-green);border:1px solid var(--c-green-border)}.diagram__zone--blue{background:var(--c-blue-wash);color:var(--c-blue);border:1px solid var(--c-blue-border)}.diagram__tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}@media (max-width:900px){.diagram__tiles{grid-template-columns:repeat(2,1fr)}}.diagram__tile{background:var(--paper);border:1px solid var(--rule);border-radius:6px;padding:10px 8px;box-shadow:0 1px 2px rgba(0,0,0,.02)}.diagram__tile-title{font-size:12px;font-weight:700;color:var(--ink);margin-bottom:3px}.diagram__tile-detail{font-size:10.5px;color:var(--ink-soft);line-height:1.35}.diagram__tile-meta{font-size:9px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;color:var(--ink-faint);margin-top:5px;text-transform:uppercase}.diagram__barrier{border:1.5px dashed var(--c-red);background:var(--c-red-wash);border-radius:6px;padding:8px 12px;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;color:var(--c-red);letter-spacing:.03em;text-align:center}.diagram__flow-svg-wrap{width:100%;min-width:760px}.diagram__svg{display:block}.diagram__state-board{display:flex;align-items:center;gap:6px;min-width:760px;padding:6px 0}.diagram__state-card{flex:1;min-width:140px;background:var(--paper);border:1px solid var(--rule);border-radius:8px;padding:12px 10px;box-shadow:0 1px 2px rgba(0,0,0,.02)}.diagram__state-card--active{border-color:var(--c-purple);box-shadow:0 0 0 1px var(--c-purple)}.diagram__state-card--interrupt{border-color:var(--c-amber)}.diagram__state-card--success{border-color:var(--c-green)}.diagram__state-card--failure{border-color:var(--c-red)}.diagram__state-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}.diagram__state-badge{font-size:9px;font-weight:700;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;padding:2px 5px;border-radius:4px}.diagram__state-badge--neutral{background:var(--c-neutral-wash);color:var(--ink-soft);border:1px solid var(--c-neutral-border)}.diagram__state-badge--running{background:var(--c-purple-wash);color:var(--c-purple);border:1px solid var(--c-purple-border)}.diagram__state-badge--paused{background:var(--c-amber-wash);color:var(--c-amber);border:1px solid var(--c-amber-border)}.diagram__state-badge--success{background:var(--c-green-wash);color:var(--c-green);border:1px solid var(--c-green-border)}.diagram__state-badge--danger{background:var(--c-red-wash);color:var(--c-red);border:1px solid var(--c-red-border)}.diagram__step-num{font-size:9px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;color:var(--ink-faint)}.diagram__state-name{font-size:12.5px;font-weight:700;color:var(--ink);margin-bottom:4px}.diagram__state-desc{font-size:10px;color:var(--ink-soft);line-height:1.35;margin-bottom:8px;min-height:28px}.diagram__checkpoint-tag{font-size:9.5px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;background:var(--c-neutral-wash);border:1px solid var(--c-neutral-border);padding:2px 5px;border-radius:4px;color:var(--ink-mid);display:inline-block}.diagram__checkpoint-tag--purple{color:var(--c-purple);border-color:var(--c-purple-border);background:var(--c-purple-wash)}.diagram__checkpoint-tag--amber{color:var(--c-amber);border-color:var(--c-amber-border);background:var(--c-amber-wash)}.diagram__checkpoint-tag--green{color:var(--c-green);border-color:var(--c-green-border);background:var(--c-green-wash)}.diagram__checkpoint-tag--danger{color:var(--c-red);border-color:var(--c-red-border);background:var(--c-red-wash)}.diagram__transition{display:flex;flex-direction:column;align-items:center;position:relative;flex-shrink:0;width:52px}.diagram__transition-line{width:100%;border-top:1.8px solid var(--rule);position:absolute;top:50%;z-index:1}.diagram__transition-line--danger{border-top-style:dashed;border-color:var(--c-red)}.diagram__transition-pill{position:relative;z-index:2;background:var(--paper);border:1px solid var(--rule);padding:2px 4px;border-radius:4px;font-size:8px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;color:var(--ink-soft);white-space:nowrap}.diagram__transition-pill--warn{color:var(--c-amber);border-color:var(--c-amber-border);background:var(--c-amber-wash)}.diagram__transition-pill--good{color:var(--c-green);border-color:var(--c-green-border);background:var(--c-green-wash)}.diagram__transition-pill--danger{color:var(--c-red);border-color:var(--c-red-border);background:var(--c-red-wash)}.diagram__topology{display:grid;grid-template-columns:240px 90px 1fr;align-items:center;min-width:680px}@media (max-width:860px){.diagram__topology{grid-template-columns:1fr;gap:16px}.diagram__topology-wires{display:none}}.diagram__lead-node{background:var(--paper);border:2px solid var(--c-purple);border-radius:8px;padding:16px;box-shadow:0 4px 12px rgba(0,0,0,.05)}.diagram__lead-title{font-size:14.5px;font-weight:700;color:var(--ink);margin:6px 0 4px}.diagram__lead-desc{font-size:11px;color:var(--ink-soft);line-height:1.35;margin-bottom:12px}.diagram__lead-ports{border-top:1px dashed var(--rule);padding-top:8px;font-size:10px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;color:var(--ink-mid);display:flex;flex-direction:column;gap:3px}.diagram__sub-group{display:flex;flex-direction:column;gap:12px}.diagram__sub-tile{background:var(--paper);border:1px solid var(--rule);border-radius:8px;padding:12px 14px;display:flex;justify-content:space-between;align-items:center;box-shadow:0 1px 2px rgba(0,0,0,.02);gap:12px}.diagram__sub-tile--research{border-left:4px solid var(--c-blue)}.diagram__sub-tile--builder{border-left:4px solid var(--c-green)}.diagram__sub-tile--critic{border-left:4px solid var(--c-purple)}.diagram__sub-title{font-size:13px;font-weight:700;color:var(--ink)}.diagram__sub-desc{font-size:10.5px;color:var(--ink-soft);margin-top:2px}.diagram__packet-pill{font-size:10px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-weight:600;padding:3px 8px;border-radius:6px;background:var(--wash);border:1px solid var(--rule);white-space:nowrap}.diagram__packet-pill--blue{color:var(--c-blue);border-color:var(--c-blue-border)}.diagram__packet-pill--green{color:var(--c-green);border-color:var(--c-green-border)}.diagram__packet-pill--purple{color:var(--c-purple);border-color:var(--c-purple-border)}.diagram__container-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;min-width:680px}.diagram__container-card{background:var(--paper);border:1px solid var(--rule);border-radius:8px;padding:12px 10px;box-shadow:0 1px 2px rgba(0,0,0,.02)}.diagram__container-card--blue{border-top:3px solid var(--c-blue)}.diagram__container-card--green{border-top:3px solid var(--c-green)}.diagram__container-card--purple{border-top:3px solid var(--c-purple)}.diagram__container-card--amber{border-top:3px solid var(--c-amber)}.diagram__container-card--red{border-top:3px solid var(--c-red)}.diagram__container-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}.diagram__container-badge{font-size:8.5px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-weight:700;padding:2px 4px;border-radius:3px}.diagram__container-badge--blue{background:var(--c-blue-wash);color:var(--c-blue)}.diagram__container-badge--green{background:var(--c-green-wash);color:var(--c-green)}.diagram__container-badge--purple{background:var(--c-purple-wash);color:var(--c-purple)}.diagram__container-badge--amber{background:var(--c-amber-wash);color:var(--c-amber)}.diagram__container-badge--red{background:var(--c-red-wash);color:var(--c-red)}.diagram__container-name{font-size:12.5px;font-weight:700;color:var(--ink);margin-bottom:3px}.diagram__container-desc{font-size:10px;color:var(--ink-soft);line-height:1.35;margin-bottom:6px}.diagram__container-meta{font-size:9px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;color:var(--ink-faint)}