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#1a1a22;box-sizing:border-box;min-height:100dvh;display:flex;flex-direction:column;font-family:var(--font);background:var(--bg-primary);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased}.lc-root *,.lc-root *:before,.lc-root *:after{box-sizing:border-box}.lc-root h1,.lc-root h2,.lc-root h3,.lc-root h4,.lc-root h5,.lc-root h6{color:var(--text-primary);font-family:var(--font)}.lc-root img{max-width:100%;display:block}.lc-root button,.lc-root input,.lc-root textarea,.lc-root select{font-family:inherit}.lc-root button{cursor:pointer}.lc-root a{color:var(--link);text-decoration:none;transition:color .15s ease}.lc-root a:hover{color:var(--link-hover)}.lc-root :focus-visible{outline:2px solid var(--color-amber);outline-offset:2px}.lc-root 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.nav-mark-link{line-height:0;min-width:44px;min-height:44px;display:inline-flex;align-items:center;justify-content:center}.nav-product{width:32px;height:32px;flex-shrink:0;display:block}.nav-links{display:flex;align-items:center;gap:1.1rem}.nav-links a{color:var(--text-secondary);font-size:.92rem;font-weight:500}.nav-links a:hover,.nav-links a.is-current{color:var(--color-amber)}.nav-end{margin-left:auto;display:flex;align-items:center;gap:.75rem}.nav-check{position:absolute;opacity:0;width:1px;height:1px;pointer-events:none}.nav-menu-btn{display:none}.nav-drawer{display:contents}.nav-menu-close{display:none}.site-foot{margin-top:auto;border-top:1px solid var(--border-subtle);padding:1.25rem 1.5rem;color:var(--text-muted);font-size:.85rem}.site-foot p{margin:0;max-width:none;margin-inline:auto}.site-foot a{color:var(--text-secondary)}.site-foot 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.85rem}.stack-layer{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;width:100%;text-align:left;padding:1.1rem 1.2rem;min-height:52px;color:var(--text-primary)}.stack-layer.is-on{border-color:var(--color-amber);background:#e8a3171f}.stack-role{font-family:var(--mono);font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;color:var(--color-amber)}.stack-name{font-size:1.35rem;font-weight:700;letter-spacing:-.02em;color:var(--text-primary)}.stack-sentence{min-height:3.2em;margin:1.1rem 0 0;color:var(--text-primary);font-size:1.05rem}.ticket-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2rem}.ticket{padding:1.5rem 1.6rem 1.4rem}.ticket-id{font-family:var(--mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--color-amber);margin:0 0 .4rem}.ticket h2{margin:0 0 .6rem;font-size:1.45rem;letter-spacing:-.02em}.ticket-tue{color:var(--text-secondary);margin:0 0 1rem}.ticket-split{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-bottom:1rem}.ticket-split h3{font-family:var(--mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;margin:0 0 .35rem;color:var(--text-muted)}.ticket-split p{margin:0;color:var(--text-secondary);font-size:.95rem}.ticket-actions{display:flex;flex-wrap:wrap;gap:.6rem}.page-lab{height:100dvh;min-height:100dvh;overflow:hidden;display:flex;flex-direction:column}.page-lab .site-header{position:sticky;flex-shrink:0}.page-lab .site-foot{flex-shrink:0;padding:.7rem 1.5rem}.page-lab .shell{min-height:0;overflow:hidden}.lab-prog{display:flex;align-items:center;gap:.55rem;min-width:140px}.track{flex:1;height:4px;background:var(--bg-elevated);border-radius:99px;overflow:hidden;min-width:80px}.fill{height:100%;width:0;background:linear-gradient(90deg,var(--color-amber-dark),var(--color-amber));transition:width 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36px;gap:8px;align-items:center;width:100%;text-align:left;padding:8px;margin-bottom:2px;border:1px solid transparent;color:var(--text-muted);border-radius:2px;background:transparent}.mod:hover{background:var(--bg-surface);color:var(--text-primary)}.mod.active{background:var(--bg-surface);border-color:var(--border-color);color:var(--text-primary)}.mod .idx{font-family:var(--mono);font-size:11px;color:var(--color-amber)}.mod .ttl{font-size:13px}.mod .mark{font-size:10px;color:var(--text-muted);text-align:right}.runtime-seg{display:flex;flex-wrap:wrap;gap:4px}.runtime-seg button{min-height:44px;padding:0 10px;background:var(--bg-primary);color:var(--text-secondary);border:1px solid var(--border-color);font-size:.8rem;font-weight:600}.runtime-seg button.is-on{background:var(--color-amber-dark);color:#fff;border-color:var(--color-amber-dark)}.runtime-seg-side{flex-direction:column;gap:10px;margin:.25rem 8px 1.4rem}.runtime-seg-side button{justify-content:flex-start;gap:.65rem;min-height:48px;padding:0 14px}.side h2{margin:1.1rem 8px 12px}.ticket-nav{margin:0 0 1.35rem}.ticket-nav li+li{margin-top:8px}.runtime-seg kbd{font-family:var(--mono);font-size:.7rem;border:1px solid var(--border-color);padding:0 4px;color:var(--text-muted)}.matrix{margin:8px;display:grid;gap:3px}.matrix-row{display:grid;grid-template-columns:52px repeat(4,1fr);gap:3px}.matrix-cell{min-height:22px;border:1px solid var(--border-subtle);background:var(--bg-primary);padding:0}.matrix-cell.is-label{border:0;background:transparent;font-family:var(--mono);font-size:9px;color:var(--text-muted);letter-spacing:.04em;text-transform:uppercase;min-height:22px;cursor:pointer;text-align:left}button.matrix-cell.is-label.is-on,.matrix-row.is-current 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12px;max-width:54ch}.hint{color:var(--text-muted)}.restore-hint{font-size:.85rem;color:var(--color-amber-pale);margin:0 0 12px}.deck{margin:18px 0 10px;background:var(--bg-surface);border:1px solid var(--border-color);overflow:hidden}.deck-head{display:flex;align-items:center;gap:10px;padding:8px 12px;border-bottom:1px solid var(--border-subtle);font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-muted)}.deck-head .dots{margin-left:auto;color:var(--color-amber);letter-spacing:4px}.machine{padding:18px 16px;min-height:180px;background:#0c0c12}.chain-row,.graph-row{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;align-items:stretch;gap:14px}.chain-row>li,.graph-row>li{position:relative;flex:1 1 120px}.box{display:flex;flex-direction:column;gap:4px;padding:12px 12px 14px;min-height:72px;box-shadow:4px 4px 0 var(--border-subtle)}.box-n{font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--color-amber)}.box-label{font-weight:600;color:var(--text-primary)}.box.is-active{border-color:var(--color-amber);background:#2a1c08}.box[data-token=here]{position:relative}.box[data-token=here]:before{content:"";position:absolute;top:8px;right:8px;width:8px;height:8px;background:var(--color-amber);box-shadow:0 0 0 3px #e8a31740}@keyframes lc-pulse{50%{opacity:.82}}.box.is-active{animation:lc-pulse 1.1s ease-in-out infinite}.box.is-done{opacity:.7}.box.is-stall{border-style:dashed;border-color:#e07070;background:#2a1212}.box-stall{font-family:var(--mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:#f0a0a0}.chain-row>li:not(:last-child):after{content:"→";position:absolute;right:-12px;top:50%;transform:translateY(-50%);color:var(--text-muted);font-family:var(--mono)}.loop-orbit{display:grid;grid-template-columns:1fr 1.4fr 1fr;grid-template-rows:auto auto auto;gap:12px;align-items:center;justify-items:center}.loop-orbit .model{grid-column:2;grid-row:2;min-width:160px;text-align:center;min-height:96px}.loop-orbit .tool:nth-of-type(1){grid-column:2;grid-row:1}.loop-orbit .tool:nth-of-type(2){grid-column:3;grid-row:2}.loop-orbit .tool:nth-of-type(3){grid-column:2;grid-row:3}.loop-orbit .tool:nth-of-type(4){grid-column:1;grid-row:2}.iter{font-family:var(--mono);font-size:11px;color:var(--color-amber)}.harness-shelf{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:14px;padding-top:12px;border-top:1px dashed var(--border-color)}.shelf{min-height:64px}.shelf-label{display:block;font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-muted);margin-bottom:4px}.shelf-empty{color:var(--text-muted);font-size:12px}.shelf .chips,.shelf .files{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:4px}.shelf .chips li,.shelf .files li{font-family:var(--mono);font-size:11px;background:var(--bg-elevated);padding:2px 6px;color:var(--text-secondary)}.graph-gym{margin:12px 0 0;font-size:.85rem;color:var(--text-muted)}.kind-det{box-shadow:4px 4px #1a1a28}.kind-llm{border-color:var(--color-amber)}.kind-hitl{border-style:dashed}.transport{display:flex;gap:8px;padding:10px 12px;border-top:1px solid var(--border-subtle);background:var(--bg-secondary)}.code-wrap{position:relative;margin:18px 0}.code-wrap pre{margin:0;padding:16px 16px 18px;overflow:auto;background:var(--bg-secondary);border:1px solid var(--border-color);font-family:var(--mono);font-size:12px;line-height:1.55;color:#d4d4ea}.btn-copy{position:absolute;top:8px;right:8px}.quiz{margin-top:8px}.quiz h2{font-size:1.25rem;margin:0 0 12px;letter-spacing:-.02em}.q{background:var(--bg-surface);border:1px solid var(--border-color);padding:12px 14px;margin-bottom:10px}.qp{margin:0 0 8px;font-size:14px;color:var(--text-primary)}.choice{display:block;width:100%;text-align:left;margin:4px 0;background:var(--bg-primary);color:var(--text-primary);border:1px solid var(--border-color);padding:7px 10px;font-size:13px;min-height:44px}.choice:hover:not(:disabled){border-color:var(--color-amber)}.choice.good{border-color:#1a6b48;color:var(--color-green)}.choice.bad{border-color:var(--rose);color:var(--rose)}.feedback{margin-top:8px;font-size:13px;color:var(--text-muted)}.feedback.ok{color:var(--color-green)}.feedback.no{color:#e0a090}.rail{border-left:1px solid var(--border-subtle);background:var(--bg-secondary);overflow:auto;padding:12px 12px 28px}.rail h3{font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--text-muted);margin:4px 0 8px;font-weight:500}.smith-tabs{display:flex;flex-wrap:wrap;gap:4px;margin-bottom:10px}.smith-tabs button{min-height:36px;padding:0 8px;background:transparent;color:var(--text-muted);border:1px solid 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