.river-lab[data-astro-cid-uidbmsiy]{--river-progress:0;color:#0e2433;width:100vw;margin-inline:calc(50% - 50vw);margin-top:calc(var(--space-lg) * -1);background:#fff;overflow:clip}.river-stage[data-astro-cid-uidbmsiy]{height:360svh;position:relative}.river-viewport[data-astro-cid-uidbmsiy]{isolation:isolate;background:#fff;height:100svh;position:sticky;top:0;overflow:hidden}.river-canvas[data-astro-cid-uidbmsiy]{z-index:0;width:100%;height:100%;position:absolute;inset:0}.sun-field[data-astro-cid-uidbmsiy]{z-index:1;pointer-events:none;mix-blend-mode:multiply;background:linear-gradient(136deg,#ffcc5926,#ffe2900a 24%,#0000 48%),radial-gradient(circle at 10% 5%,#ffdc8442,#0000 26%);position:absolute;inset:0}.lab-intro[data-astro-cid-uidbmsiy]{z-index:3;width:min(32rem,100vw - 3rem);position:absolute;top:clamp(2rem,7vh,5rem);left:clamp(1.5rem,6vw,6rem)}.lab-back[data-astro-cid-uidbmsiy],.lab-kicker[data-astro-cid-uidbmsiy],.formula[data-astro-cid-uidbmsiy],.control-heading[data-astro-cid-uidbmsiy] span[data-astro-cid-uidbmsiy],.control-status[data-astro-cid-uidbmsiy],.river-index[data-astro-cid-uidbmsiy],.scroll-notes[data-astro-cid-uidbmsiy]{font-family:var(--font-mono);letter-spacing:.12em;text-transform:uppercase;font-size:.67rem}.lab-back[data-astro-cid-uidbmsiy]{color:#0e243394;text-decoration:none}.lab-kicker[data-astro-cid-uidbmsiy]{color:#1034b3;margin-top:clamp(3rem,9vh,7rem)}h1[data-astro-cid-uidbmsiy]{color:#102a38;max-width:9.4em;font-family:var(--font-display);letter-spacing:-.055em;margin-top:.7rem;font-size:clamp(3.35rem,7.7vw,8.8rem);font-style:italic;font-weight:400;line-height:.83}.lab-note[data-astro-cid-uidbmsiy]{color:#0e2433ab;max-width:27rem;margin-top:clamp(1.75rem,4vh,3rem);font-size:clamp(.82rem,1vw,.95rem);line-height:1.85}.formula[data-astro-cid-uidbmsiy]{color:#1034b3;white-space:nowrap}.river-controls[data-astro-cid-uidbmsiy]{z-index:4;backdrop-filter:blur(14px);background:#ffffffc2;border:1px solid #0e243321;border-radius:1.6rem .6rem 1.8rem .75rem;width:min(30rem,100vw - 2.5rem);padding:1rem 1.15rem .85rem;position:absolute;bottom:clamp(1.25rem,5vh,3.5rem);right:clamp(1.25rem,4vw,4rem);box-shadow:0 1.2rem 4rem #1f4f5d14}.control-heading[data-astro-cid-uidbmsiy]{justify-content:space-between;align-items:flex-start;gap:1rem;display:flex}.control-heading[data-astro-cid-uidbmsiy] span[data-astro-cid-uidbmsiy],.control-heading[data-astro-cid-uidbmsiy] strong[data-astro-cid-uidbmsiy]{display:block}.control-heading[data-astro-cid-uidbmsiy] span[data-astro-cid-uidbmsiy]{color:#0e243370}.control-heading[data-astro-cid-uidbmsiy] strong[data-astro-cid-uidbmsiy]{font-family:var(--font-display);margin-top:.1rem;font-size:1.1rem;font-style:italic;font-weight:500}button[data-astro-cid-uidbmsiy]{color:inherit;font:inherit;cursor:pointer;background:0 0;border:0}.reset[data-astro-cid-uidbmsiy]{color:#0e24337a;font-family:var(--font-mono);text-transform:uppercase;font-size:.65rem}.presets[data-astro-cid-uidbmsiy]{gap:.35rem;margin-top:.9rem;display:flex}.presets[data-astro-cid-uidbmsiy] button[data-astro-cid-uidbmsiy]{color:#0e243394;font-family:var(--font-mono);letter-spacing:.04em;border:1px solid #0e243321;border-radius:99rem;padding:.3rem .58rem;font-size:.61rem}.presets[data-astro-cid-uidbmsiy] button[data-astro-cid-uidbmsiy][aria-pressed=true]{color:#1034b3;background:#1034b30e;border-color:#1034b352}.control-grid[data-astro-cid-uidbmsiy]{grid-template-columns:repeat(2,minmax(0,1fr));gap:.55rem 1rem;margin-top:.9rem;display:grid}label[data-astro-cid-uidbmsiy] span[data-astro-cid-uidbmsiy]{color:#0e24338c;font-family:var(--font-mono);letter-spacing:.04em;justify-content:space-between;font-size:.61rem;display:flex}output[data-astro-cid-uidbmsiy]{color:#0e2433db}input[data-astro-cid-uidbmsiy][type=range]{accent-color:#174abf;width:100%;height:.85rem;margin:0}.control-status[data-astro-cid-uidbmsiy]{color:#0e24335c;letter-spacing:.04em;text-transform:none;margin-top:.55rem}.river-index[data-astro-cid-uidbmsiy]{z-index:3;color:#0e243359;flex-direction:column;align-items:center;gap:.6rem;display:flex;position:absolute;top:50%;right:clamp(1rem,2vw,2rem);transform:translateY(-50%)}.river-index[data-astro-cid-uidbmsiy] i[data-astro-cid-uidbmsiy]{background:linear-gradient(to bottom, #1034b3 calc(var(--river-progress) * 100%), #0e24331f 0);width:1px;height:4rem}.river-progress[data-astro-cid-uidbmsiy]{z-index:5;background:#0e24330f;height:2px;position:absolute;bottom:0;left:0;right:0}.river-progress[data-astro-cid-uidbmsiy] span[data-astro-cid-uidbmsiy]{transform-origin:0;background:#153dbe;width:100%;height:100%;display:block;transform:scaleX(0)}.scroll-notes[data-astro-cid-uidbmsiy]{z-index:2;pointer-events:none;color:#0e243352;position:absolute;inset:0}.scroll-notes[data-astro-cid-uidbmsiy] li[data-astro-cid-uidbmsiy]{top:var(--note-at);writing-mode:vertical-rl;position:absolute;right:clamp(1.3rem,4vw,4rem)}@media (width<=48rem){.lab-intro[data-astro-cid-uidbmsiy]{top:1.5rem}.lab-kicker[data-astro-cid-uidbmsiy]{margin-top:2.5rem}h1[data-astro-cid-uidbmsiy]{font-size:clamp(3rem,14vw,5rem)}.lab-note[data-astro-cid-uidbmsiy]{max-width:22rem;padding-right:2rem;font-size:.76rem}.river-controls[data-astro-cid-uidbmsiy]{padding:.8rem .9rem}.control-grid[data-astro-cid-uidbmsiy],.control-status[data-astro-cid-uidbmsiy],.river-index[data-astro-cid-uidbmsiy]{display:none}}@media (prefers-reduced-motion:reduce){.river-progress[data-astro-cid-uidbmsiy] span[data-astro-cid-uidbmsiy]{transition:none}}