.flow-demo[data-astro-cid-iiifhmft]{padding:var(--s3);margin:var(--s4) 0}@media (width<=640px){.flow-demo[data-astro-cid-iiifhmft]{padding:var(--s2)}}svg[data-astro-cid-iiifhmft]{width:100%;height:auto;display:block}.flow-demo .sl{fill:none;stroke:#9fd0ff59;stroke-width:1.2px;stroke-dasharray:10 14;animation:2.2s linear infinite flow-dash}@keyframes flow-dash{to{stroke-dashoffset:-48px}}@media (prefers-reduced-motion:reduce){.flow-demo .sl{animation:none}}.flow-demo .eddy{fill:none;stroke:#ece9e280;stroke-width:1px}.shear[data-astro-cid-iiifhmft]{fill:none;stroke:#ece9e266;stroke-width:1.2px;stroke-dasharray:3 4;transition:d .5s var(--ease)}.bl[data-astro-cid-iiifhmft]{fill:none;stroke-linecap:round}.bl[data-astro-cid-iiifhmft].lam{stroke:var(--signal);stroke-width:2px}.bl[data-astro-cid-iiifhmft].turb{stroke:var(--warm);stroke-width:5px;stroke-dasharray:2 3}.sep[data-astro-cid-iiifhmft]{fill:none;stroke:var(--text);stroke-width:2px}.seam-bump[data-astro-cid-iiifhmft]{fill:#c23a2f}.tag[data-astro-cid-iiifhmft].seam-tag{fill:#e0473a}.spinmark[data-astro-cid-iiifhmft] path[data-astro-cid-iiifhmft]{fill:none;stroke:#05070d8c;stroke-width:2.4px;stroke-linecap:round}.force[data-astro-cid-iiifhmft]{stroke:var(--warm);stroke-width:4px}.tag[data-astro-cid-iiifhmft]{fill:var(--muted);font:12px var(--mono);letter-spacing:.08em;text-transform:uppercase}.below[data-astro-cid-iiifhmft]{gap:var(--s2) var(--s4);margin-top:var(--s2);flex-wrap:wrap;align-items:flex-start;display:flex}.modes[data-astro-cid-iiifhmft]{flex-wrap:wrap;gap:6px;display:flex}.modes[data-astro-cid-iiifhmft] button[data-astro-cid-iiifhmft]{border:1px solid var(--line-2);color:var(--text-2);font:inherit;font-size:var(--fs-small);cursor:pointer;background:0 0;padding:6px 12px}.modes[data-astro-cid-iiifhmft] button[data-astro-cid-iiifhmft][aria-checked=true]{border-color:var(--warm);color:var(--text);background:#ffb24d14}.caption[data-astro-cid-iiifhmft]{color:var(--text-2);flex:320px;min-height:4.6em;margin:0;line-height:1.55}.seam-ball[data-astro-cid-ekt2k7rk]{gap:var(--s4);padding:var(--s4);margin:var(--s4) 0;grid-template-columns:minmax(0,1fr) minmax(0,.9fr);align-items:center;display:grid}.stage[data-astro-cid-ekt2k7rk]{position:relative}canvas[data-astro-cid-ekt2k7rk]{aspect-ratio:1;touch-action:none;cursor:grab;width:100%;display:block}canvas[data-astro-cid-ekt2k7rk]:active{cursor:grabbing}.hint[data-astro-cid-ekt2k7rk]{text-align:center;color:var(--muted);margin:0}.controls[data-astro-cid-ekt2k7rk]{gap:var(--s3);display:grid}.presets[data-astro-cid-ekt2k7rk]{flex-wrap:wrap;gap:6px;display:flex}.presets[data-astro-cid-ekt2k7rk] button[data-astro-cid-ekt2k7rk]{border:1px solid var(--line-2);color:var(--text-2);font:inherit;font-size:var(--fs-small);cursor:pointer;background:0 0;padding:6px 12px}.presets[data-astro-cid-ekt2k7rk] button[data-astro-cid-ekt2k7rk][aria-checked=true]{border-color:var(--warm);color:var(--text);background:#ffb24d14}.slider[data-astro-cid-ekt2k7rk]{gap:6px;display:grid}.slider[data-astro-cid-ekt2k7rk] b[data-astro-cid-ekt2k7rk]{color:var(--text);margin-left:6px;font-weight:500}input[data-astro-cid-ekt2k7rk][type=range]{width:100%;accent-color:var(--warm)}.pushes[data-astro-cid-ekt2k7rk]{gap:var(--s1);margin:0;display:grid}.pushes[data-astro-cid-ekt2k7rk] div[data-astro-cid-ekt2k7rk]{gap:var(--s2);grid-template-columns:9em 1fr;display:grid}.pushes[data-astro-cid-ekt2k7rk] dt[data-astro-cid-ekt2k7rk]{font-family:var(--mono);font-size:var(--fs-label);letter-spacing:var(--track-label);text-transform:uppercase;color:var(--muted);padding-top:3px}.pushes[data-astro-cid-ekt2k7rk] dt[data-astro-cid-ekt2k7rk]:before{content:"";vertical-align:middle;width:12px;height:3px;margin-right:8px;display:inline-block}.k1[data-astro-cid-ekt2k7rk]:before{background:var(--signal)}.k2[data-astro-cid-ekt2k7rk]:before{background:var(--warm)}.pushes[data-astro-cid-ekt2k7rk] dd[data-astro-cid-ekt2k7rk]{color:var(--text);margin:0}.fine[data-astro-cid-ekt2k7rk]{color:var(--muted);font-size:var(--fs-small);min-height:3em;margin:0;line-height:1.5}@media (width<=860px){.seam-ball[data-astro-cid-ekt2k7rk]{padding:var(--s3) var(--s2);grid-template-columns:1fr}}.spin-vs-seams[data-astro-cid-wskzb7uc]{gap:var(--s4);padding:var(--s4);margin:var(--s4) 0;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);display:grid}svg[data-astro-cid-wskzb7uc]{width:100%;height:auto;display:block}.grid[data-astro-cid-wskzb7uc]{stroke:var(--line)}.axis[data-astro-cid-wskzb7uc]{stroke:var(--line-2)}.tick[data-astro-cid-wskzb7uc]{fill:var(--muted);font:11px var(--mono);letter-spacing:.04em}.spin[data-astro-cid-wskzb7uc],.seam[data-astro-cid-wskzb7uc]{stroke-width:2.5px;transition:all .45s var(--ease)}.spin[data-astro-cid-wskzb7uc]{stroke:var(--signal)}.seam[data-astro-cid-wskzb7uc]{stroke:var(--warm)}.total[data-astro-cid-wskzb7uc]{stroke:var(--text-2);stroke-dasharray:3 4;transition:all .45s var(--ease)}.origin[data-astro-cid-wskzb7uc]{fill:var(--muted)}.dot[data-astro-cid-wskzb7uc]{fill:var(--text);transition:all .45s var(--ease)}.key[data-astro-cid-wskzb7uc]{gap:var(--s3);margin-top:var(--s1);flex-wrap:wrap;display:flex}.key[data-astro-cid-wskzb7uc] span[data-astro-cid-wskzb7uc]:before{content:"";vertical-align:middle;width:14px;height:2px;margin-right:7px;display:inline-block}.k1[data-astro-cid-wskzb7uc]:before{background:var(--signal)}.k2[data-astro-cid-wskzb7uc]:before{background:var(--warm)}.k3[data-astro-cid-wskzb7uc]:before{background:var(--text);border-radius:50%;width:8px!important;height:8px!important}.side[data-astro-cid-wskzb7uc]{gap:var(--s3);flex-direction:column;display:flex}.big[data-astro-cid-wskzb7uc]{margin:var(--s1) 0;min-height:3.3em;font-size:1.15rem;line-height:1.45}.fine[data-astro-cid-wskzb7uc]{color:var(--muted);font-size:var(--fs-small);margin:0;line-height:1.5}.types[data-astro-cid-wskzb7uc]{gap:2px;display:grid}.types[data-astro-cid-wskzb7uc] button[data-astro-cid-wskzb7uc]{align-items:center;gap:var(--s2);color:var(--text-2);font:inherit;font-size:var(--fs-small);text-align:left;cursor:pointer;background:0 0;border:1px solid #0000;grid-template-columns:9.5em 1fr 3.6em;padding:6px 8px;display:grid}.types[data-astro-cid-wskzb7uc] button[data-astro-cid-wskzb7uc]:hover{border-color:var(--line)}.types[data-astro-cid-wskzb7uc] button[data-astro-cid-wskzb7uc][aria-checked=true]{border-color:var(--line-2);color:var(--text);background:#ffb24d0f}.bar[data-astro-cid-wskzb7uc]{background:var(--line);height:6px}.bar[data-astro-cid-wskzb7uc] span[data-astro-cid-wskzb7uc]{background:var(--warm);opacity:.55;height:100%;display:block}[data-astro-cid-wskzb7uc][aria-checked=true] .bar[data-astro-cid-wskzb7uc] span[data-astro-cid-wskzb7uc]{opacity:1}.tval[data-astro-cid-wskzb7uc]{font-family:var(--mono);text-align:right;font-size:.8rem}@media (width<=860px){.spin-vs-seams[data-astro-cid-wskzb7uc]{padding:var(--s3) var(--s2);grid-template-columns:1fr}}.timeline[data-astro-cid-nwt2vevg]{margin:var(--s4) 0}.strip[data-astro-cid-nwt2vevg]{width:100%;height:auto;top:var(--header-h);z-index:2;background:linear-gradient(var(--space) 70%, transparent);padding-bottom:6px;display:block;position:sticky}.rail[data-astro-cid-nwt2vevg]{stroke:var(--line-2)}.break[data-astro-cid-nwt2vevg]{stroke:var(--muted);stroke-dasharray:2 3}.tick[data-astro-cid-nwt2vevg]{fill:var(--muted);font:11px var(--mono)}.dot[data-astro-cid-nwt2vevg]{stroke:var(--space);stroke-width:2px;transition:r .2s var(--ease);cursor:pointer}.dot[data-astro-cid-nwt2vevg].spin{fill:var(--signal)}.dot[data-astro-cid-nwt2vevg].measure{fill:var(--text-2)}.dot[data-astro-cid-nwt2vevg].seams{fill:var(--warm)}.dot[data-astro-cid-nwt2vevg].on{r:9;stroke:var(--text)}.legend[data-astro-cid-nwt2vevg]{gap:var(--s3);margin:var(--s1) 0 var(--s3);color:var(--muted);display:flex}.legend[data-astro-cid-nwt2vevg] span[data-astro-cid-nwt2vevg]:before{content:"";border-radius:50%;width:8px;height:8px;margin-right:7px;display:inline-block}.legend[data-astro-cid-nwt2vevg] .spin[data-astro-cid-nwt2vevg]:before{background:var(--signal)}.legend[data-astro-cid-nwt2vevg] .measure[data-astro-cid-nwt2vevg]:before{background:var(--text-2)}.legend[data-astro-cid-nwt2vevg] .seams[data-astro-cid-nwt2vevg]:before{background:var(--warm)}.moments[data-astro-cid-nwt2vevg]{gap:2px;margin:0;padding:0;list-style:none;display:grid}.moments[data-astro-cid-nwt2vevg] li[data-astro-cid-nwt2vevg]{gap:var(--s3);padding:var(--s3) 0;border-top:1px solid var(--line);scroll-margin-top:calc(var(--header-h) + 90px);opacity:.62;transition:opacity .3s var(--ease);grid-template-columns:6.5rem minmax(0,1fr);display:grid}.moments[data-astro-cid-nwt2vevg] li[data-astro-cid-nwt2vevg].on,.moments[data-astro-cid-nwt2vevg] li[data-astro-cid-nwt2vevg]:target{opacity:1}.year[data-astro-cid-nwt2vevg]{font-family:var(--mono);color:var(--text);font-size:1.05rem}.spin[data-astro-cid-nwt2vevg] .year[data-astro-cid-nwt2vevg]{color:var(--signal)}.seams[data-astro-cid-nwt2vevg] .year[data-astro-cid-nwt2vevg]{color:var(--warm)}h3[data-astro-cid-nwt2vevg]{letter-spacing:-.01em;margin:0 0 6px;font-size:1.15rem}.moments[data-astro-cid-nwt2vevg] p[data-astro-cid-nwt2vevg]{color:var(--text-2);max-width:64ch;margin:0 0 8px;line-height:1.6}.src[data-astro-cid-nwt2vevg]{color:var(--muted)}.src[data-astro-cid-nwt2vevg]:hover{color:var(--text)}@media (width<=640px){.moments[data-astro-cid-nwt2vevg] li[data-astro-cid-nwt2vevg]{grid-template-columns:1fr;gap:4px}}@media (prefers-reduced-motion:reduce){.moments[data-astro-cid-nwt2vevg] li[data-astro-cid-nwt2vevg]{transition:none}}.readout[data-astro-cid-e642bpcq]{margin-top:var(--s4)}.readout[data-astro-cid-e642bpcq] small[data-astro-cid-e642bpcq]{color:var(--muted);margin-left:2px;font-size:.5em}.toc[data-astro-cid-e642bpcq] ol[data-astro-cid-e642bpcq]{margin:var(--s5) 0 0;background:var(--line);border:1px solid var(--line);grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;padding:0;list-style:none;display:grid}.toc[data-astro-cid-e642bpcq] a[data-astro-cid-e642bpcq]{background:var(--space);color:var(--text-2);font-size:var(--fs-small);align-items:baseline;gap:10px;height:100%;padding:14px 16px;text-decoration:none;transition:color .15s,background .15s;display:flex}.toc[data-astro-cid-e642bpcq] a[data-astro-cid-e642bpcq]:hover{color:var(--text);background:var(--panel-solid)}.toc[data-astro-cid-e642bpcq] span[data-astro-cid-e642bpcq]{font:500 var(--fs-label) var(--mono);color:var(--signal)}.chapter[data-astro-cid-e642bpcq]{margin-top:var(--s7);scroll-margin-top:calc(var(--header-h) + 16px)}.chapter[data-astro-cid-e642bpcq]>h2[data-astro-cid-e642bpcq]{margin:0 0 var(--s4);padding-top:var(--s3);border-top:1px solid var(--line);letter-spacing:-.025em;color:var(--text);flex-direction:column;gap:10px;font-size:clamp(1.7rem,3.4vw,2.3rem);font-weight:600;line-height:1.15;display:flex}.chapter[data-astro-cid-e642bpcq]>h2[data-astro-cid-e642bpcq] span[data-astro-cid-e642bpcq]{font:500 var(--fs-label) var(--mono);letter-spacing:var(--track-label);color:var(--signal)}.note[data-astro-cid-e642bpcq]{max-width:68ch;color:var(--muted);font-size:var(--fs-small);line-height:1.6}.note[data-astro-cid-e642bpcq] a[data-astro-cid-e642bpcq]{color:var(--text-2)}.prose[data-astro-cid-e642bpcq] ul[data-astro-cid-e642bpcq] li[data-astro-cid-e642bpcq]{margin-bottom:.8em}.sources[data-astro-cid-e642bpcq]{max-width:80ch;font-size:var(--fs-small);color:var(--muted);gap:10px;margin:0;padding:0;line-height:1.5;list-style:none;display:grid}.sources[data-astro-cid-e642bpcq] a[data-astro-cid-e642bpcq]{color:var(--text-2);text-decoration:underline;text-decoration-color:var(--line-2);text-underline-offset:3px}.sources[data-astro-cid-e642bpcq] a[data-astro-cid-e642bpcq]:hover{color:var(--text)}@media (width<=860px){.toc[data-astro-cid-e642bpcq] ol[data-astro-cid-e642bpcq]{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=640px){.readout[data-astro-cid-e642bpcq]{grid-template-columns:repeat(2,minmax(0,1fr));grid-auto-flow:row}.readout[data-astro-cid-e642bpcq]>div[data-astro-cid-e642bpcq]:nth-child(3){border-left:0}.readout[data-astro-cid-e642bpcq]>div[data-astro-cid-e642bpcq]:nth-child(n+3){border-top:1px solid var(--line)}}