.chapter-summary.svelte-8q6vh1{border:2px solid var(--color-d);border-radius:.75rem;padding:1.5rem var(--space-md);margin:var(--space-lg) 0;background:linear-gradient(135deg,var(--color-d-glow),var(--color-d-soft))}.chapter-summary-header.svelte-8q6vh1{font-family:var(--font-sans);font-size:.85rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--color-d);margin-bottom:1rem;display:flex;align-items:center;gap:.5rem}.chapter-summary-header.svelte-8q6vh1 svg:where(.svelte-8q6vh1){color:var(--color-d);flex-shrink:0}.chapter-summary-content.svelte-8q6vh1{font-size:1.05rem;line-height:1.7}.chapter-summary-content.svelte-8q6vh1 ul{list-style:none;padding-left:0;margin:0}.chapter-summary-content.svelte-8q6vh1 li{padding:.35rem 0 .35rem 1.2rem;position:relative}.chapter-summary-content.svelte-8q6vh1 li:before{content:"▸";position:absolute;left:0;color:var(--color-d);font-size:.8rem}.chapter-summary-content.svelte-8q6vh1 p{margin-bottom:.5rem}.chapter-summary-content.svelte-8q6vh1 p:last-child{margin-bottom:0}.looking-ahead.svelte-1x1bhpa{border:1px solid var(--color-border-light);border-radius:.75rem;padding:1.25rem var(--space-md);margin:var(--space-lg) 0;background:linear-gradient(135deg,#fafaf9,#f5f5f4)}.looking-ahead-header.svelte-1x1bhpa{font-family:var(--font-sans);font-size:.78rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--color-ink-faint);margin-bottom:.6rem;display:flex;align-items:center;gap:.4rem}.looking-ahead-header.svelte-1x1bhpa svg:where(.svelte-1x1bhpa){flex-shrink:0;color:var(--color-ink-faint);opacity:.7}.looking-ahead-content.svelte-1x1bhpa{font-size:.98rem;line-height:1.65;color:var(--color-ink-light);font-style:italic}.looking-ahead-content.svelte-1x1bhpa p{margin-bottom:.4rem}.looking-ahead-content.svelte-1x1bhpa p:last-child{margin-bottom:0}.reveal-box.svelte-1eidz3a{border:1px solid var(--color-border-light);border-radius:.75rem;margin:var(--space-md) 0;background:linear-gradient(135deg,#fafaf9,#f6f4ef);overflow:hidden}.reveal-box.svelte-1eidz3a summary:where(.svelte-1eidz3a){list-style:none;cursor:pointer;padding:.9rem 1rem;display:flex;align-items:center;gap:.6rem;-webkit-user-select:none;user-select:none}.reveal-box.svelte-1eidz3a summary:where(.svelte-1eidz3a)::-webkit-details-marker{display:none}.reveal-box.svelte-1eidz3a summary:where(.svelte-1eidz3a):before{content:"▸";font-size:.72rem;color:var(--color-ink-faint);transition:transform .2s ease}.reveal-box[open].svelte-1eidz3a summary:where(.svelte-1eidz3a):before{transform:rotate(90deg)}.reveal-summary-text.svelte-1eidz3a{display:flex;flex-direction:column;gap:.1rem}.reveal-title.svelte-1eidz3a{font-family:var(--font-sans);font-size:.78rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--color-ink-light)}.reveal-subtitle.svelte-1eidz3a{font-family:var(--font-sans);font-size:.72rem;color:var(--color-ink-faint)}.reveal-content.svelte-1eidz3a{padding:0 1rem 1rem;color:var(--color-ink-light);font-size:.98rem;line-height:1.7}.tone-math.svelte-1eidz3a{border-color:#d8c5f6;background:linear-gradient(135deg,#faf5ff,#f5f3ff)}.tone-math.svelte-1eidz3a .reveal-title:where(.svelte-1eidz3a){color:var(--color-d)}.tone-warning.svelte-1eidz3a{border-color:#f5c7c7;background:linear-gradient(135deg,#fff7f7,#fff1f1)}.tone-warning.svelte-1eidz3a .reveal-title:where(.svelte-1eidz3a){color:var(--plot-rose)}.fn-grid.svelte-1ufl6qd{display:grid;grid-template-columns:repeat(auto-fill,minmax(5.8rem,1fr));gap:.35rem;margin-bottom:1rem}.fn-cell.svelte-1ufl6qd{padding:.38rem .3rem;border-radius:.5rem;border:1px solid var(--color-border-light);background:var(--color-surface);color:var(--color-ink-light);cursor:pointer;transition:all .12s ease;text-align:center;line-height:1.2}.fn-cell.svelte-1ufl6qd .katex{font-size:.85em}.fn-cell.svelte-1ufl6qd:hover{border-color:var(--color-d);color:var(--color-d);background:var(--color-d-soft)}.fn-cell.active.svelte-1ufl6qd{background:var(--color-d);color:#fff;border-color:var(--color-d)}.fn-cell.active.svelte-1ufl6qd .katex *{color:#fff!important}.toolbar.svelte-1ufl6qd{display:flex;align-items:center;gap:.6rem;padding:.4rem 0}.toolbar-lbl.svelte-1ufl6qd{font-family:var(--font-sans);font-size:.75rem;color:var(--color-ink-faint);white-space:nowrap}.toolbar-slider.svelte-1ufl6qd{flex:1;min-width:0}.toolbar-val.svelte-1ufl6qd{font-family:var(--font-sans);font-size:.75rem;font-weight:600;color:var(--color-d);min-width:3.2em;text-align:right;font-variant-numeric:tabular-nums}.tangent-btn.svelte-1ufl6qd{font-family:var(--font-sans);font-size:.72rem;font-weight:500;padding:.28rem .65rem;border-radius:999px;border:1.5px solid var(--color-border);background:var(--color-surface);color:var(--color-ink-faint);cursor:pointer;transition:all .12s ease;white-space:nowrap}.tangent-btn.svelte-1ufl6qd:hover{border-color:var(--color-d);color:var(--color-d)}.tangent-btn.active.svelte-1ufl6qd{background:var(--color-d);color:#fff;border-color:var(--color-d)}.canvas-wrapper.svelte-1ufl6qd{width:100%;aspect-ratio:16 / 9;border-radius:.75rem;overflow:hidden;border:1px solid var(--color-border-light);position:relative;margin:.3rem 0}canvas.svelte-1ufl6qd{width:100%;height:100%;display:block}.canvas-overlay.svelte-1ufl6qd{position:absolute;bottom:.6rem;left:.6rem;font-family:var(--font-sans);font-size:.75rem;color:var(--color-ink-light);background:color-mix(in srgb,var(--color-surface-raised) 88%,transparent);padding:.3rem .6rem;border-radius:.35rem;pointer-events:none;animation:svelte-1ufl6qd-float-down .3s var(--ease-out-expo)}.canvas-overlay.converged.svelte-1ufl6qd{color:var(--color-d);font-weight:600;background:color-mix(in srgb,var(--color-d-soft) 90%,var(--color-surface-raised))}.microscope-legend.svelte-1ufl6qd{display:flex;align-items:center;justify-content:flex-end;gap:.85rem;min-height:1.35rem;color:var(--color-ink-faint);font:600 .67rem/1.25 var(--font-sans)}.microscope-legend.svelte-1ufl6qd span:where(.svelte-1ufl6qd){display:inline-flex;align-items:center;gap:.32rem}.microscope-legend.svelte-1ufl6qd i:where(.svelte-1ufl6qd){display:inline-block;width:.95rem;height:.18rem;border-radius:999px}.curve-swatch.svelte-1ufl6qd{background:var(--plot-ink)}.tangent-swatch.svelte-1ufl6qd{background:var(--plot-violet)}.remainder-swatch.svelte-1ufl6qd{background:color-mix(in srgb,var(--plot-amber) 58%,transparent)}@keyframes svelte-1ufl6qd-float-down{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}@media(max-width:600px){.microscope-legend.svelte-1ufl6qd{justify-content:flex-start;flex-wrap:wrap;gap:.35rem .75rem}}.fm-wrap.svelte-1n2rc1m{display:flex;flex-direction:column;align-items:center;gap:.3rem;padding:.5rem 0 1.2rem}.fm-x-label.svelte-1n2rc1m,.fm-fx-label.svelte-1n2rc1m{position:absolute;top:18%;z-index:3;color:var(--color-ink-faint)}.fm-x-label.svelte-1n2rc1m{left:var(--rest-l);transform:translate(-50%)}.fm-fx-label.svelte-1n2rc1m{right:var(--rest-r);transform:translate(50%)}.fm-x-label.svelte-1n2rc1m .katex,.fm-fx-label.svelte-1n2rc1m .katex{font-size:1.05em;color:var(--color-ink-faint)}.fm-stage.svelte-1n2rc1m{position:relative;width:100%;max-width:460px;aspect-ratio:480 / 200}.fm-svg.svelte-1n2rc1m{position:absolute;inset:0;width:100%;height:100%;z-index:2;overflow:visible;pointer-events:none}.fm-path.svelte-1n2rc1m{transition:d .25s cubic-bezier(.34,1.56,.64,1)}.fm-eq-label.svelte-1n2rc1m{position:absolute;left:50%;top:26.75%;width:43.75%;transform:translate(-50%,-50%);display:flex;align-items:center;justify-content:center;text-align:center;color:var(--color-d);pointer-events:none;z-index:3;opacity:0;transition:opacity .45s ease}.fm-eq-label.visible.svelte-1n2rc1m{opacity:1}.fm-eq-label.fading.svelte-1n2rc1m{opacity:0;transition:opacity .5s ease}.fm-eq-label.svelte-1n2rc1m .katex{font-size:1.35em}.fm-val.svelte-1n2rc1m{position:absolute;top:50%;transform:translateY(-50%) translate(-50%);padding:.3rem .7rem;border-radius:999px;background:radial-gradient(circle at 40% 40%,var(--color-surface-raised),color-mix(in srgb,var(--color-surface) 82%,var(--color-d) 18%));border:1.8px solid var(--color-d);box-shadow:none;white-space:nowrap;z-index:1;opacity:0;min-width:2.1em;min-height:2.1em;display:flex;align-items:center;justify-content:center}.fm-val.svelte-1n2rc1m .katex{font-size:1.1em;color:var(--color-d)}.fm-val-in.svelte-1n2rc1m{left:var(--rest-l);transition:left .5s cubic-bezier(.16,1,.3,1),opacity .45s ease}.fm-val-in.appear.svelte-1n2rc1m{left:var(--rest-l);opacity:1;transition:opacity .45s ease}.fm-val-in.swallow.svelte-1n2rc1m{left:var(--swallow);opacity:1;transition:left .5s cubic-bezier(.4,0,.2,1),opacity .15s .35s ease}.fm-val-in.gone.svelte-1n2rc1m{left:calc(var(--swallow) + 8%);opacity:0;transition:left .35s ease-in,opacity .3s ease-in}.fm-val-in.fading.svelte-1n2rc1m{left:var(--rest-l);opacity:0;transition:opacity .5s ease}.fm-val-out.svelte-1n2rc1m{right:var(--hidden-r);transform:translateY(-50%) translate(50%);opacity:0;transition:right .5s cubic-bezier(.16,1,.3,1),opacity .35s ease}.fm-val-out.emerge.svelte-1n2rc1m{right:var(--rest-r);opacity:1}.fm-val-out.fading.svelte-1n2rc1m{right:var(--rest-r);opacity:0;transition:opacity .5s ease}@media(max-width:480px){.fm-stage.svelte-1n2rc1m{max-width:340px}.fm-eq-label.svelte-1n2rc1m .katex{font-size:1.1em}.fm-val.svelte-1n2rc1m .katex{font-size:.78em}}@media(prefers-reduced-motion:reduce){.fm-path.svelte-1n2rc1m,.fm-val.svelte-1n2rc1m{transition:none}}.derivative-machine.svelte-2jau45{display:flex;justify-content:center;width:100%;padding:.5rem 0 1.15rem}.machine-stage.svelte-2jau45{position:relative;width:100%;max-width:610px;aspect-ratio:560 / 200}.machine-svg.svelte-2jau45{position:absolute;inset:0;z-index:2;width:100%;height:100%;overflow:visible;pointer-events:none}.machine-title.svelte-2jau45{position:absolute;top:7.1%;left:50%;z-index:4;transform:translate(-50%);color:var(--color-ink-faint);font-family:var(--font-sans);font-size:.78rem;font-weight:700;letter-spacing:.08em;line-height:1;pointer-events:none}.machine-glow.svelte-2jau45{opacity:.18;animation:svelte-2jau45-machine-breathe 6.6s ease-in-out infinite}.side-label.svelte-2jau45{position:absolute;top:13%;z-index:4;color:var(--color-ink-faint);pointer-events:none}.side-label-left.svelte-2jau45{left:var(--label-left);transform:translate(-50%)}.side-label-right.svelte-2jau45{right:var(--label-right);transform:translate(50%)}.side-label.svelte-2jau45 .katex{font-size:1.04em;color:var(--color-ink-faint)}.scenario-layer.svelte-2jau45{opacity:0;animation:svelte-2jau45-scenario-window var(--full-cycle-duration) linear var(--scenario-delay) infinite}.pill-scenario.svelte-2jau45{position:absolute;inset:0;z-index:1;pointer-events:none}.function-pill.svelte-2jau45{position:absolute;top:50%;display:flex;align-items:center;justify-content:center;min-width:3.25rem;min-height:2.35rem;padding:.28rem .7rem;border:1.8px solid var(--color-d);border-radius:999px;background:radial-gradient(circle at 40% 40%,var(--color-surface-raised),color-mix(in srgb,var(--color-surface) 82%,var(--color-d) 18%));white-space:nowrap;opacity:0}.function-pill.svelte-2jau45 .katex{font-size:1.04em;color:var(--color-d)}.function-pill-input.svelte-2jau45{right:var(--input-rest-right);transform:translateY(-50%);animation:svelte-2jau45-input-cycle 6.6s cubic-bezier(.4,0,.2,1) infinite}.function-pill-output.svelte-2jau45{left:var(--output-hidden-left);transform:translateY(-50%);animation:svelte-2jau45-output-cycle 6.6s cubic-bezier(.16,1,.3,1) infinite}.plot-scenario.svelte-2jau45{transform-box:fill-box}.static-tangent.svelte-2jau45{display:none}@keyframes svelte-2jau45-scenario-window{0%{opacity:0}0.7%,12.5%{opacity:1}13.2%,to{opacity:0}}@keyframes svelte-2jau45-input-cycle{0%,2%{right:var(--input-rest-right);opacity:0}5%,13%{right:var(--input-rest-right);opacity:1}22%,to{right:var(--input-hidden-right);opacity:0}}@keyframes svelte-2jau45-output-cycle{0%,66%{left:var(--output-hidden-left);opacity:0}72%,88%{left:var(--output-rest-left);opacity:1}96%,to{left:var(--output-rest-left);opacity:0}}@keyframes svelte-2jau45-machine-breathe{0%,to{opacity:.12}38%,72%{opacity:.32}}@media(max-width:520px){.machine-stage.svelte-2jau45{max-width:390px}.machine-title.svelte-2jau45{top:6.2%;font-size:.58rem;letter-spacing:.055em}.function-pill.svelte-2jau45{min-width:2.5rem;min-height:1.9rem;padding:.2rem .48rem}.function-pill.svelte-2jau45 .katex,.side-label.svelte-2jau45 .katex{font-size:.78em}.function-pill-input.svelte-2jau45{padding-inline:.4rem}.function-pill-output.svelte-2jau45{min-width:2.25rem;padding-inline:.18rem}.function-pill-output.svelte-2jau45 .katex{font-size:.74em}}@media(prefers-reduced-motion:reduce){.machine-glow.svelte-2jau45,.scenario-layer.svelte-2jau45,.function-pill.svelte-2jau45,.moving-tangent.svelte-2jau45{animation:none}.scenario-layer.scenario-0.svelte-2jau45{opacity:1}.scenario-layer.svelte-2jau45:not(.scenario-0){display:none}.function-pill-input.svelte-2jau45{right:var(--input-rest-right);opacity:1}.function-pill-output.svelte-2jau45{left:var(--output-rest-left);opacity:1}.moving-tangent.svelte-2jau45,.travel-halo.svelte-2jau45{display:none}.static-tangent.svelte-2jau45{display:block}}.jsx-board-wrapper.svelte-1i99nip{width:100%;border:1px solid var(--color-border-light);border-radius:.5rem;overflow:hidden;background:var(--plot-background);display:grid;place-items:center}.jsx-embedded.svelte-1i99nip{width:100%;min-width:0}.jsx-fallback.svelte-1i99nip{font-family:var(--font-sans);font-size:.9rem;color:var(--color-ink-faint);padding:.75rem}.jsx-board-wrapper.svelte-1i99nip .jxgbox{background:var(--plot-background)!important}.jsx-board-wrapper.svelte-1i99nip .JXG_navigation{display:none!important}.jsx-board-wrapper.svelte-1i99nip .jsx-tick-label{font-family:var(--font-sans)!important;fill:var(--plot-muted)!important}.jsx-board-wrapper.svelte-1i99nip .JXGtext{font-family:Crimson Pro,serif!important}.micro-bridge.svelte-6wwlna{display:grid;gap:1rem}.geometry-block.svelte-6wwlna .neo-figure{margin:0}.geometry-block.svelte-6wwlna figcaption{display:none}.geometry-block.svelte-6wwlna .jsx-board-wrapper{border-radius:.74rem;border-color:var(--color-border-light)}.geometry-block.svelte-6wwlna .jxgbox{border:none!important}h4.svelte-6wwlna{margin:0 0 .72rem;font-family:var(--font-sans);font-size:.94rem;font-weight:650;letter-spacing:.03em;color:var(--color-ink-light)}.algebra-block.svelte-6wwlna{padding:.85rem 1rem .75rem;border-left:3px solid var(--color-d);border-radius:0 .65rem .65rem 0;background:linear-gradient(135deg,var(--color-d-glow),var(--color-d-soft))}.algebra-heading.svelte-6wwlna{display:flex;align-items:center;justify-content:space-between;gap:1rem}.algebra-heading.svelte-6wwlna h4:where(.svelte-6wwlna){margin:0}.rule.svelte-6wwlna{font-family:var(--font-serif);color:var(--color-d)}.rule.svelte-6wwlna .katex{color:var(--color-d);font-weight:600;font-size:1em}.result.svelte-6wwlna{margin-top:.15rem;text-align:center}.result.svelte-6wwlna .katex-display{margin:.15rem 0!important}.summary.svelte-6wwlna{margin:.2rem 0 0;font-family:var(--font-sans);font-size:.84rem;color:var(--color-ink-light);line-height:1.5;text-align:center}.legend-bar.svelte-6wwlna{display:flex;flex-wrap:wrap;gap:.5rem 1rem;margin-top:.65rem}.legend-row.svelte-6wwlna{display:flex;align-items:center;gap:.45rem}.legend-chip.svelte-6wwlna{width:.95rem;height:.45rem;flex:0 0 auto;border-radius:999px}.legend-chip.curve.svelte-6wwlna{background:var(--plot-curve)}.legend-chip.linear.svelte-6wwlna{background:transparent;border:2px solid var(--plot-tangent)}.legend-chip.residual.svelte-6wwlna{background:var(--plot-error)}.legend-text.svelte-6wwlna{font-family:var(--font-sans);font-size:.8rem;color:var(--color-ink-light);line-height:1.35}.legend-text.svelte-6wwlna .katex{font-size:.9em}@media(max-width:540px){.algebra-heading.svelte-6wwlna{align-items:flex-start}}.panel-title.svelte-nnwvo6{font-family:var(--font-sans);font-size:10px;font-weight:700;letter-spacing:.04em;fill:var(--color-d)}.panel.svelte-nnwvo6{fill:var(--plot-background);stroke:var(--color-border-light)}.axis.svelte-nnwvo6{stroke:var(--plot-axis);stroke-width:.6}.graph.svelte-nnwvo6{fill:none;stroke:var(--plot-curve);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.tangent.svelte-nnwvo6{stroke:var(--plot-tangent);stroke-width:1.5;stroke-dasharray:5 3}.faint.svelte-nnwvo6{opacity:.7}.focus-point.svelte-nnwvo6{fill:var(--plot-point)}.open-point.svelte-nnwvo6{fill:var(--plot-background);stroke:var(--plot-curve);stroke-width:1.5}.closed-point.svelte-nnwvo6{fill:var(--plot-curve)}.formula.svelte-nnwvo6{font-family:var(--font-mono);font-size:10px;fill:var(--plot-ink)}.figure-1-3 figcaption{max-width:var(--w-content);margin-inline:auto}.toc-card.svelte-1tb0zei{margin-top:var(--space-sm);max-width:34rem;width:min(34rem,100%);padding:.78rem .76rem .72rem;border:1px solid color-mix(in srgb,var(--color-border) 82%,var(--plot-blue) 18%);border-radius:.9rem;background:radial-gradient(circle at 90% 6%,color-mix(in srgb,var(--plot-blue) 8%,transparent),transparent 36%),linear-gradient(165deg,var(--color-surface-raised) 0%,var(--color-surface) 100%);text-align:left;animation:float-down 1.2s var(--ease-out-expo)}.toc-card-head.svelte-1tb0zei h3:where(.svelte-1tb0zei){margin:0;font-family:var(--font-serif);font-size:.98rem;color:var(--color-ink)}.toc-card-head.svelte-1tb0zei p:where(.svelte-1tb0zei){margin:.24rem 0 0;font-family:var(--font-serif);font-size:.76rem;line-height:1.4;color:var(--color-ink-light)}.toc-card-eyebrow.svelte-1tb0zei,.toc-rail-eyebrow.svelte-1tb0zei{margin:0;font-family:var(--font-sans);font-size:.68rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--color-ink-faint)}.toc-card.svelte-1tb0zei ol:where(.svelte-1tb0zei),.toc-mobile-drawer.svelte-1tb0zei ol:where(.svelte-1tb0zei),.toc-rail.svelte-1tb0zei ol:where(.svelte-1tb0zei){list-style:none;padding:0;margin:0}.toc-card.svelte-1tb0zei ol:where(.svelte-1tb0zei){margin-top:.5rem;display:grid;gap:.12rem}.toc-card.svelte-1tb0zei li:where(.svelte-1tb0zei) button:where(.svelte-1tb0zei),.toc-mobile-drawer.svelte-1tb0zei li:where(.svelte-1tb0zei) button:where(.svelte-1tb0zei){width:100%;border:none;background:none;display:flex;align-items:center;gap:.56rem;padding:.34rem .4rem;border-radius:.6rem;cursor:pointer;text-align:left;transition:background-color .16s ease}.toc-card.svelte-1tb0zei li:where(.svelte-1tb0zei) button:where(.svelte-1tb0zei):hover,.toc-mobile-drawer.svelte-1tb0zei li:where(.svelte-1tb0zei) button:where(.svelte-1tb0zei):hover{background:color-mix(in srgb,var(--color-d-soft) 54%,var(--color-surface) 46%)}.toc-card.svelte-1tb0zei .toc-number:where(.svelte-1tb0zei){font-size:.66rem;min-width:1.45rem}.toc-card.svelte-1tb0zei .toc-title:where(.svelte-1tb0zei){font-size:.77rem;font-weight:600;line-height:1.2}.toc-number.svelte-1tb0zei,.toc-rail-number.svelte-1tb0zei{font-family:var(--font-sans);font-size:.7rem;font-weight:700;line-height:1;color:var(--color-ink-faint);min-width:1.9rem}.toc-main.svelte-1tb0zei,.toc-rail-main.svelte-1tb0zei{display:flex;flex-direction:column;gap:.12rem;min-width:0;flex:1}.toc-title.svelte-1tb0zei,.toc-rail-title.svelte-1tb0zei{font-family:var(--font-sans);font-size:.8rem;font-weight:600;line-height:1.25;color:var(--color-ink-light)}.toc-subtitle.svelte-1tb0zei,.toc-rail-subtitle.svelte-1tb0zei{font-family:var(--font-sans);font-size:.64rem;color:var(--color-ink-faint)}@media(min-width:1120px){.toc-card.svelte-1tb0zei ol:where(.svelte-1tb0zei){grid-template-columns:repeat(2,minmax(0,1fr));column-gap:.52rem}.toc-card.svelte-1tb0zei li:where(.svelte-1tb0zei) button:where(.svelte-1tb0zei){align-items:flex-start}}.toc-rail.svelte-1tb0zei{position:fixed;right:1rem;top:50%;transform:translate(.8rem,-50%);transform-origin:right center;z-index:52;display:none;width:min(17.5rem,calc(100vw - 1.5rem));padding:.68rem;border:1px solid color-mix(in srgb,var(--color-border-light) 78%,var(--color-surface) 22%);border-radius:.95rem;background:radial-gradient(circle at 94% 6%,var(--color-d-glow),transparent 45%),linear-gradient(172deg,color-mix(in srgb,var(--color-surface-raised) 97%,transparent),color-mix(in srgb,var(--color-surface) 95%,transparent));box-shadow:0 14px 30px var(--color-shadow);-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);overflow:clip;opacity:0;visibility:hidden;pointer-events:none;--toc-motion: cubic-bezier(.22, 1, .36, 1);transition:opacity .24s ease,transform .34s var(--toc-motion),visibility 0s linear .34s,width .24s var(--toc-motion),padding .24s var(--toc-motion),border-radius .24s var(--toc-motion)}.toc-rail.visible.svelte-1tb0zei{transform:translateY(-50%);opacity:1;visibility:visible;pointer-events:auto;transition:opacity .24s ease,transform .34s var(--toc-motion),visibility 0s linear,width .24s var(--toc-motion),padding .24s var(--toc-motion),border-radius .24s var(--toc-motion)}.toc-rail.collapsed.svelte-1tb0zei{width:3rem;padding:.5rem .45rem;border-radius:.9rem}@media(min-width:1280px){.toc-rail.svelte-1tb0zei{display:block}}.toc-rail.svelte-1tb0zei header:where(.svelte-1tb0zei){display:flex;justify-content:space-between;align-items:center;margin-bottom:.46rem;min-height:1.9rem;transition:margin-bottom .24s var(--toc-motion)}.toc-rail.collapsed.svelte-1tb0zei header:where(.svelte-1tb0zei){justify-content:center;margin-bottom:0}.toc-rail-eyebrow.svelte-1tb0zei{white-space:nowrap;max-width:11rem;overflow:hidden;transition:max-width .24s var(--toc-motion),opacity .16s ease,transform .2s var(--toc-motion)}.toc-rail.collapsed.svelte-1tb0zei .toc-rail-eyebrow:where(.svelte-1tb0zei){max-width:0;opacity:0;transform:translate(.2rem)}.toc-rail-collapse.svelte-1tb0zei{width:1.9rem;height:1.9rem;border:none;border-radius:.58rem;background:color-mix(in srgb,var(--color-d-soft) 60%,var(--color-surface) 40%);color:var(--color-d);display:grid;place-items:center;flex-shrink:0;position:relative;cursor:pointer;transition:background-color .16s ease,color .16s ease}.toc-rail-collapse.svelte-1tb0zei:hover{background:color-mix(in srgb,var(--color-d-soft) 78%,var(--color-surface) 22%)}.toc-rail-collapse.svelte-1tb0zei:focus-visible{outline:2px solid color-mix(in srgb,var(--color-d) 70%,var(--color-surface) 30%);outline-offset:2px}.toc-rail-collapse-icon-wrap.svelte-1tb0zei{display:block;width:.98rem;height:.98rem;position:relative}.toc-rail-collapse-icon.svelte-1tb0zei{width:100%;height:100%;position:absolute;inset:0;transition:opacity .16s ease,transform .2s var(--toc-motion)}.toc-rail-collapse-icon-list.svelte-1tb0zei{opacity:0;transform:scale(.84) rotate(-8deg)}.toc-rail-collapse-icon-close.svelte-1tb0zei{opacity:1;transform:scale(1) rotate(0)}.toc-rail.collapsed.svelte-1tb0zei .toc-rail-collapse-icon-list:where(.svelte-1tb0zei){opacity:1;transform:scale(1) rotate(0)}.toc-rail.collapsed.svelte-1tb0zei .toc-rail-collapse-icon-close:where(.svelte-1tb0zei){opacity:0;transform:scale(.84) rotate(8deg)}.toc-rail-body.svelte-1tb0zei{opacity:1;max-height:80vh;visibility:visible;transform:translate(0);transition:max-height .24s var(--toc-motion),opacity .18s ease,transform .2s var(--toc-motion),visibility 0s linear}.toc-rail.collapsed.svelte-1tb0zei .toc-rail-body:where(.svelte-1tb0zei){opacity:0;max-height:0;visibility:hidden;transform:translate(.35rem);pointer-events:none;transition:max-height .2s var(--toc-motion),opacity .12s ease,transform .16s ease,visibility 0s linear .2s}.toc-rail-meter.svelte-1tb0zei{height:.32rem;background:color-mix(in srgb,var(--color-d-soft) 72%,var(--color-surface) 28%);border-radius:999px;overflow:hidden}.toc-rail-meter-fill.svelte-1tb0zei{height:100%;background:linear-gradient(90deg,#8b5cf6,#a855f7 55%,#d8b4fe);transition:width .18s ease}.toc-rail.svelte-1tb0zei ol:where(.svelte-1tb0zei){display:grid;gap:.2rem;margin-top:.55rem}.toc-rail.svelte-1tb0zei li:where(.svelte-1tb0zei) button:where(.svelte-1tb0zei){width:100%;border:none;background:none;display:flex;align-items:center;gap:.5rem;padding:.4rem .42rem;border-radius:.5rem;text-align:left;cursor:pointer;transition:background-color .16s ease}.toc-rail.svelte-1tb0zei li:where(.svelte-1tb0zei) button:where(.svelte-1tb0zei):hover{background:#a855f71c}.toc-rail.svelte-1tb0zei li.active:where(.svelte-1tb0zei) button:where(.svelte-1tb0zei){background:#a855f724}.toc-rail.svelte-1tb0zei li.active:where(.svelte-1tb0zei) .toc-rail-title:where(.svelte-1tb0zei),.toc-rail.svelte-1tb0zei li.active:where(.svelte-1tb0zei) .toc-rail-number:where(.svelte-1tb0zei){color:var(--color-d)}.toc-rail.svelte-1tb0zei li.active:where(.svelte-1tb0zei) .toc-rail-title:where(.svelte-1tb0zei){font-weight:700}.toc-mobile-toggle.svelte-1tb0zei{position:fixed;bottom:1.15rem;right:1rem;z-index:58;display:flex;flex-direction:column;gap:.12rem;min-width:12rem;max-width:min(18rem,calc(100vw - 2rem));border:1px solid var(--color-border);background:var(--color-surface-raised);border-radius:.85rem;padding:.48rem .62rem;text-align:left;cursor:pointer;box-shadow:0 10px 24px var(--color-shadow);opacity:0;visibility:hidden;pointer-events:none;transform:translateY(.65rem);transition:opacity .2s ease,transform .28s var(--ease-out-expo),visibility 0s linear .28s}.toc-mobile-toggle.visible.svelte-1tb0zei{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0);transition:opacity .2s ease,transform .28s var(--ease-out-expo),visibility 0s linear}.toc-mobile-meta.svelte-1tb0zei{font-family:var(--font-sans);font-size:.63rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--color-d)}.toc-mobile-title.svelte-1tb0zei{font-family:var(--font-sans);font-size:.78rem;font-weight:600;color:var(--color-ink-light);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}@media(min-width:1280px){.toc-mobile-toggle.svelte-1tb0zei{display:none}}.toc-mobile-backdrop.svelte-1tb0zei{position:fixed;inset:0;border:none;background:#00000057;z-index:70}.toc-mobile-drawer.svelte-1tb0zei{position:fixed;left:0;right:0;bottom:0;z-index:71;max-height:76vh;overflow-y:auto;padding:1rem 1rem 1.35rem;background:var(--color-surface-raised);border-radius:1rem 1rem 0 0;box-shadow:0 -12px 36px var(--color-shadow)}.toc-mobile-drawer.svelte-1tb0zei header:where(.svelte-1tb0zei){display:flex;justify-content:space-between;align-items:baseline;padding-bottom:.55rem;border-bottom:1px solid var(--color-border-light);margin-bottom:.5rem}.toc-mobile-drawer.svelte-1tb0zei header:where(.svelte-1tb0zei) strong:where(.svelte-1tb0zei){font-family:var(--font-sans);font-size:.76rem;font-weight:600;color:var(--color-d)}.toc-mobile-drawer.svelte-1tb0zei .toc-rail-meter:where(.svelte-1tb0zei){margin-bottom:.55rem}.toc-mobile-drawer.svelte-1tb0zei li.active:where(.svelte-1tb0zei) button:where(.svelte-1tb0zei){background:#a855f724}.toc-mobile-drawer.svelte-1tb0zei li.active:where(.svelte-1tb0zei) .toc-title:where(.svelte-1tb0zei){color:var(--color-d)}.curve-field.svelte-1wmhads{position:absolute;inset:0;z-index:0;pointer-events:none;overflow:hidden;opacity:.92}svg.svelte-1wmhads{display:block;width:100%;height:100%}.curve.svelte-1wmhads{fill:none;vector-effect:non-scaling-stroke;stroke-linecap:round;stroke-linejoin:round}.curve-primary.svelte-1wmhads{stroke:url(#hero-curve-blue);stroke-width:2.2}.curve-echo.svelte-1wmhads{stroke:url(#hero-curve-violet);stroke-width:1;stroke-dasharray:2 10;opacity:.7}.curve-secondary.svelte-1wmhads{stroke:url(#hero-curve-violet);stroke-width:1.55;opacity:.68}.curve-faint.svelte-1wmhads{stroke:url(#hero-curve-blue);stroke-width:1.1;opacity:.42}.drift-one.svelte-1wmhads{animation:svelte-1wmhads-drift-one 18s ease-in-out infinite alternate}.drift-two.svelte-1wmhads{animation:svelte-1wmhads-drift-two 24s ease-in-out infinite alternate}.point-glow.svelte-1wmhads{fill:url(#hero-point-glow);filter:url(#hero-soft-glow)}.curve-point.svelte-1wmhads{fill:var(--plot-point);opacity:.64}@keyframes svelte-1wmhads-drift-one{0%{transform:translate3d(-1.2%,-.7%,0) scale(1.01)}to{transform:translate3d(1.3%,.9%,0) scale(1.018)}}@keyframes svelte-1wmhads-drift-two{0%{transform:translate3d(1.1%,.4%,0)}to{transform:translate3d(-1.4%,-.8%,0)}}@media(max-width:760px){.curve-field.svelte-1wmhads{opacity:.7}.curve-faint.svelte-1wmhads{display:none}}@media(prefers-reduced-motion:reduce){.drift-one.svelte-1wmhads,.drift-two.svelte-1wmhads{animation:none}.curve-traveler.svelte-1wmhads{display:none}}@media print{.curve-field.svelte-1wmhads{display:none}}.chapter-shell-inner.svelte-nwj683{background:linear-gradient(180deg,#a855f70d,#a855f705);border:1px solid var(--color-border-light);border-radius:.9rem;padding:1.25rem 1.25rem 1.15rem}.chapter-shell-copy.svelte-nwj683{font-family:var(--font-serif);color:var(--color-ink-light);font-size:1rem;line-height:1.65;margin:0 0 .9rem}.chapter-shell-button.svelte-nwj683{font-family:var(--font-sans);font-size:.78rem;font-weight:600;letter-spacing:.02em;color:var(--color-d);background:var(--color-surface);border:1px solid var(--color-border);border-radius:999px;padding:.4rem .85rem;cursor:pointer;transition:border-color .15s ease,background-color .15s ease}.chapter-shell-button.svelte-nwj683:hover{border-color:var(--color-d);background:var(--color-d-soft)}.chapter-shell-error.svelte-nwj683 .chapter-shell-inner:where(.svelte-nwj683){border-color:#f0d3d5;background:linear-gradient(180deg,#ef444408,#ef444403)}.wormhole-return.svelte-1vmzgt9{position:fixed;right:1.25rem;bottom:4.4rem;z-index:59;display:flex;flex-direction:column;align-items:flex-start;gap:.1rem;background:#fffbeb;border:1px solid #fde68a;border-radius:.6rem;padding:.45rem .6rem;cursor:pointer;box-shadow:0 6px 16px #00000014}.wormhole-return.svelte-1vmzgt9:hover{border-color:#f59e0b}.wormhole-return-title.svelte-1vmzgt9{font-family:var(--font-sans);font-size:.66rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--plot-amber)}.wormhole-return-label.svelte-1vmzgt9{font-family:var(--font-sans);font-size:.74rem;font-weight:600;color:var(--color-ink-light)}@media(max-width:768px){.wormhole-return.svelte-1vmzgt9{right:1rem;bottom:4.8rem}.wormhole-return-label.svelte-1vmzgt9{max-width:12rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}}.hero.svelte-1uha8ag{min-height:100vh;min-height:100dvh;display:grid;place-items:center;padding:clamp(1.2rem,2.8vw,2.3rem);position:relative;overflow:hidden;background:radial-gradient(126% 96% at 8% 12%,rgba(26,60,112,.12) 0%,transparent 56%),radial-gradient(118% 92% at 95% 14%,rgba(163,116,74,.07) 0%,transparent 64%),linear-gradient(180deg,#f5f2f8 0%,#f8f7fb 44%,#f4f7fb 74%,#f8f8f9 90%,var(--color-paper) 100%)}.hero.svelte-1uha8ag:before,.hero.svelte-1uha8ag:after{content:"";position:absolute;pointer-events:none;z-index:0}html[data-theme=dark] .hero.svelte-1uha8ag{background:radial-gradient(126% 96% at 8% 12%,rgba(64,105,175,.16) 0%,transparent 56%),radial-gradient(118% 92% at 95% 14%,rgba(192,132,252,.08) 0%,transparent 64%),linear-gradient(180deg,#171a24 0%,#141720 48%,#12151d 78%,var(--color-paper) 100%)}html[data-theme=dark] .hero.svelte-1uha8ag:before{background:radial-gradient(circle,#60a5fa21,#60a5fa00 70%)}html[data-theme=dark] .hero.svelte-1uha8ag:after{background:linear-gradient(180deg,rgba(17,19,26,0) 0%,rgba(17,19,26,.48) 45%,rgba(17,19,26,.84) 78%,var(--color-paper) 100%)}.hero.svelte-1uha8ag:before{width:min(42rem,72vw);aspect-ratio:1;left:-10rem;top:-18rem;border-radius:50%;background:radial-gradient(circle,#4975cc33,#4975cc00 70%);filter:blur(6px)}.hero.svelte-1uha8ag:after{left:0;right:0;bottom:-1px;height:clamp(5rem,14vh,8rem);background:linear-gradient(180deg,rgba(253,251,247,0) 0%,rgba(253,251,247,.48) 45%,rgba(253,251,247,.84) 78%,var(--color-paper) 100%)}.hero-shell.svelte-1uha8ag{position:relative;z-index:1;width:min(78rem,100%);min-width:0;display:grid;gap:clamp(1.1rem,2.2vw,2rem);align-items:center}@media(min-width:1120px){.hero-shell.svelte-1uha8ag{grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:clamp(1rem,2vw,1.8rem)}}.hero-inner.svelte-1uha8ag{position:relative;z-index:1;min-width:0;animation:float-down 1s var(--ease-out-expo);text-align:left;max-width:38rem;margin-inline:0}.hero-title.svelte-1uha8ag{font-family:var(--font-serif);font-size:clamp(3rem,6.9vw,5.15rem);font-weight:320;letter-spacing:.15em;color:var(--color-ink);margin:0 0 .62rem;text-transform:uppercase;line-height:.95}.hero-author.svelte-1uha8ag{margin:0 0 .88rem;font-family:var(--font-sans);font-size:.8rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:color-mix(in srgb,var(--color-ink-light) 78%,var(--color-d) 22%)}.hero-subtitle.svelte-1uha8ag{font-family:var(--font-serif);font-size:clamp(1.01rem,2.05vw,1.28rem);color:var(--color-ink-light);line-height:1.52;margin:0 0 .92rem}.hero-motivation.svelte-1uha8ag{font-family:var(--font-serif);font-size:clamp(.86rem,1.5vw,.98rem);color:var(--color-ink-faint);line-height:1.6;max-width:36rem;margin:0}.hero-toc.svelte-1uha8ag{position:relative;z-index:1;min-width:0;display:grid;align-items:center;justify-items:end}.hero-toc.svelte-1uha8ag .toc-card{margin-top:0;width:min(31rem,100%);max-width:100%;box-sizing:border-box;margin-inline:auto}@media(max-width:1119px){.hero.svelte-1uha8ag{padding-top:1.2rem;padding-bottom:1.1rem}.hero-inner.svelte-1uha8ag{text-align:center;max-width:42rem;margin-inline:auto}.hero-subtitle.svelte-1uha8ag br:where(.svelte-1uha8ag){display:none}.hero-motivation.svelte-1uha8ag{margin-left:auto;margin-right:auto}}@media(max-width:520px){.hero-title.svelte-1uha8ag{font-size:clamp(2.25rem,10.8vw,2.8rem);letter-spacing:.11em}.hero-motivation.svelte-1uha8ag{overflow-wrap:anywhere}}.closing.svelte-1uha8ag{padding:var(--space-xl) 0 var(--space-2xl);border-top:1px solid var(--color-border-light)}