.chapter-page main{overflow:visible}.chapter-links .is-current{color:var(--accent);border-color:var(--accent);background:var(--bg-soft)}
.chapter-hero,.chapter-section,.chapter-pagination{width:min(var(--max),calc(100% - 2rem));margin-inline:auto}
.chapter-hero{padding:clamp(2rem,5vw,4.5rem) 0 clamp(3rem,7vw,6rem)}.chapter-kicker{display:flex;flex-wrap:wrap;gap:.55rem;align-items:center;margin-bottom:1.5rem;color:var(--muted);font-size:.78rem}.chapter-kicker a{color:var(--muted);text-decoration:none}.chapter-kicker a:hover{color:var(--accent)}.chapter-kicker strong{color:var(--accent)}
.chapter-hero-grid{display:grid;grid-template-columns:.8fr 1.2fr;align-items:center;gap:clamp(2rem,5vw,5rem)}.chapter-hero h1{margin:0;font-size:clamp(3.2rem,7vw,7rem);line-height:.9;letter-spacing:-.055em}.chapter-hero h1 span{color:var(--accent)}.chapter-lede{max-width:680px;margin:1.4rem 0 0;color:var(--muted);font-size:clamp(1rem,1.3vw,1.16rem)}.assumption-row{display:flex;flex-wrap:wrap;gap:.45rem;margin-top:1.5rem}.assumption-row span{padding:.45rem .65rem;border:1px solid var(--line);border-radius:999px;color:var(--muted);background:var(--panel);font:700 .7rem ui-monospace,monospace}.chapter-concept{margin:0;padding:.65rem;border:1px solid var(--line);border-radius:22px;background:var(--panel);box-shadow:0 24px 60px var(--shadow)}.chapter-concept img{width:100%;border-radius:16px}
.chapter-section{padding:clamp(3.5rem,7vw,6.5rem) 0;border-top:1px solid var(--line)}
.pipeline-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:.7rem;margin-top:2rem}.pipeline-grid article{display:grid;gap:.25rem;padding:1rem;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel)}.pipeline-grid article>span{color:var(--accent);font:700 .68rem ui-monospace,monospace}.pipeline-grid strong{font-size:.9rem}.pipeline-grid code{color:var(--accent-2);font-size:.86rem}.pipeline-grid small{color:var(--muted);font-size:.65rem}
.integrated-shell{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:1rem;margin-top:2rem}.dashboard,.control-panel{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel)}.dashboard{min-width:0;overflow:hidden}
.dashboard-toolbar{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:.8rem 1rem;border-bottom:1px solid var(--line)}.dashboard-toolbar>div{display:grid;grid-template-columns:auto 1fr;column-gap:.55rem;align-items:center}.dashboard-toolbar .status-dot{grid-row:1/3}.dashboard-toolbar small{color:var(--muted);font-size:.68rem}.status-dot{width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 15%,transparent)}.lab-button{min-height:36px;padding:.45rem .7rem;border:1px solid var(--line);border-radius:9px;background:var(--bg-soft);color:var(--text);font:inherit;font-size:.76rem;font-weight:750;cursor:pointer}.lab-button:hover{border-color:var(--line-strong)}
.system-strip{display:grid;grid-template-columns:1fr auto 1fr auto 1fr auto 1fr auto 1fr;align-items:center;gap:.45rem;padding:.75rem;border-bottom:1px solid var(--line);background:var(--bg-soft)}.system-node{display:grid;gap:.12rem;padding:.65rem;border:1px solid var(--line);border-radius:10px;background:var(--panel);text-align:center}.system-node span{color:var(--muted);font-size:.62rem}.system-node strong{font-size:1rem;color:var(--accent)}.system-node small{color:var(--muted);font-size:.6rem}.system-node.active{border-color:var(--accent)}.system-arrow{color:var(--muted)}
.dashboard-grid{display:grid;grid-template-columns:1.25fr .9fr;gap:.65rem;padding:.75rem}.panel{min-width:0;border:1px solid var(--line);border-radius:14px;background:var(--nav-bg);overflow:hidden}.panel header{display:flex;justify-content:space-between;gap:1rem;align-items:center;padding:.6rem .75rem;border-bottom:1px solid var(--line)}.panel header strong{font-size:.76rem}.panel header span{color:var(--muted);font-size:.63rem}.panel svg{width:100%;height:auto;display:block}.timeline-panel{grid-column:1/-1}.plot-bg{fill:var(--nav-bg)}.grid-line{stroke:var(--line);stroke-width:1;opacity:.7}.axis-line{stroke:var(--line-strong);stroke-width:1.2}.axis-text{fill:var(--muted);font:10px ui-monospace,monospace}
.truth-path{fill:none;stroke:var(--text);stroke-width:3.5}.obs-point{fill:var(--muted);opacity:.55}.estimate-path{fill:none;stroke:var(--accent-2);stroke-width:2.6}.prediction-path{fill:none;stroke:var(--accent);stroke-width:2.7;stroke-dasharray:7 6}.fan-path{fill:none;stroke:var(--accent);stroke-width:1.2;opacity:.17}.freeze-marker{fill:var(--accent-2);stroke:var(--nav-bg);stroke-width:2}
.reach-a{fill:color-mix(in srgb,var(--accent) 10%,transparent);stroke:var(--accent);stroke-width:3}.reach-b{fill:color-mix(in srgb,var(--accent-2) 10%,transparent);stroke:var(--accent-2);stroke-width:3}.reach-center-a{fill:var(--accent);stroke:var(--nav-bg);stroke-width:2}.reach-center-b{fill:var(--accent-2);stroke:var(--nav-bg);stroke-width:2}.overlap-point{fill:var(--text);opacity:.25}
.timeline-track{display:grid;grid-template-columns:repeat(6,1fr);padding:1rem}.timeline-event{position:relative;display:grid;gap:.15rem;padding:.5rem .65rem .5rem 1rem;border-top:2px solid var(--line-strong)}.timeline-event i{position:absolute;left:-1px;top:-5px;width:8px;height:8px;border-radius:50%;background:var(--accent)}.timeline-event b{font-size:.72rem}.timeline-event small{color:var(--muted);font-size:.6rem}
.dashboard-legend{display:flex;flex-wrap:wrap;gap:.75rem 1rem;padding:.2rem 1rem 1rem;color:var(--muted);font-size:.68rem}.dashboard-legend span{display:inline-flex;gap:.4rem;align-items:center}.legend-line{width:22px;border-top:3px solid}.legend-line.truth{border-color:var(--text)}.legend-line.estimate{border-color:var(--accent-2)}.legend-line.prediction{border-color:var(--accent);border-top-style:dashed}.legend-line.fan{border-color:var(--accent);opacity:.35}.legend-dot{width:8px;height:8px;border-radius:50%}.legend-dot.obs{background:var(--muted)}
.control-panel{padding:1rem}.control-head h3{margin:-.25rem 0 1rem}.control{padding:.8rem 0;border-top:1px solid var(--line)}.control label{display:flex;justify-content:space-between;gap:.75rem;margin-bottom:.55rem;color:var(--muted);font-size:.75rem}.control output{color:var(--text);font-weight:750;font-variant-numeric:tabular-nums}.control input[type=range]{width:100%;accent-color:var(--accent)}.control-note{margin-top:.8rem;padding:.8rem;border:1px solid var(--line);border-radius:10px;background:var(--bg-soft)}.control-note strong{font-size:.76rem;color:var(--accent-2)}.control-note p{margin:.35rem 0 0;color:var(--muted);font-size:.72rem}
.metric-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(135px,1fr));gap:.65rem;margin-top:.7rem}.metric-grid article{min-width:0;padding:.8rem;border:1px solid var(--line);border-radius:12px;background:var(--panel)}.metric-grid span,.metric-grid small{display:block;color:var(--muted);font-size:.66rem}.metric-grid strong{display:block;margin:.3rem 0;font-size:clamp(1rem,1.5vw,1.25rem);font-variant-numeric:tabular-nums}
.interpretation-panel{display:grid;grid-template-columns:.75fr 1.25fr;gap:1.5rem;align-items:end;margin-top:.7rem;padding:1rem;border:1px solid var(--line);border-radius:var(--radius);background:var(--bg-soft)}.interpretation-panel h3{margin:-.2rem 0 0}.interpretation-panel>p{margin:0;color:var(--muted)}
.insight-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-top:2rem}.insight-grid article{padding:1.1rem;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel)}.insight-grid h3{margin:0 0 .55rem}.insight-grid p{margin:0;color:var(--muted);font-size:.9rem}.module-equation{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:.75rem;margin-top:2rem;padding:1.2rem;border:1px solid var(--line);border-radius:var(--radius);background:var(--bg-soft);font:700 .84rem ui-monospace,monospace}.module-equation b{color:var(--accent)}
.chapter-pagination{display:grid;grid-template-columns:1fr 1fr;gap:1rem;padding:0 0 4rem}.chapter-pagination a{display:grid;padding:1rem;border:1px solid var(--line);border-radius:13px;background:var(--panel);text-decoration:none}.chapter-pagination a:last-child{text-align:right}.chapter-pagination span{color:var(--muted);font-size:.7rem}.chapter-pagination strong{margin-top:.25rem}.chapter-pagination a:hover{border-color:var(--accent)}
@media(max-width:1100px){.chapter-hero-grid{grid-template-columns:1fr}.chapter-concept{max-width:820px}.pipeline-grid{grid-template-columns:repeat(3,1fr)}.integrated-shell{grid-template-columns:1fr}.control-panel{display:grid;grid-template-columns:repeat(3,1fr);gap:0 1rem}.control-head,.control-note{grid-column:1/-1}}
@media(max-width:820px){.dashboard-grid{grid-template-columns:1fr}.timeline-panel{grid-column:auto}.system-strip{grid-template-columns:1fr}.system-arrow{text-align:center;transform:rotate(90deg)}.timeline-track{grid-template-columns:1fr 1fr 1fr}}
@media(max-width:760px){.chapter-hero,.chapter-section,.chapter-pagination{width:min(100% - 1.2rem,var(--max))}.chapter-hero{padding-top:1.4rem}.chapter-hero h1{font-size:clamp(3rem,15vw,5rem)}.pipeline-grid,.insight-grid{grid-template-columns:1fr}.control-panel{display:block}.interpretation-panel{grid-template-columns:1fr;align-items:start}.chapter-pagination{grid-template-columns:1fr}.chapter-pagination a:last-child{text-align:left}.panel{overflow-x:auto}.panel svg{min-width:620px}}
@media(max-width:500px){.timeline-track{grid-template-columns:1fr 1fr}.dashboard-toolbar{align-items:flex-start;flex-direction:column}}