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1rem),38rem);min-height:3.25rem;padding:.3rem .35rem;border-radius:var(--radius-md)}.ChapterNav_label__40cxI,.ChapterNav_progress__wXYjG,.ChapterNav_track__ckoZY{display:none}.ChapterNav_mobileControl__Su_se{position:relative;display:grid;min-width:0;min-height:2.75rem;flex:1;grid-template-columns:auto minmax(0,1fr);gap:.45rem;align-items:center}.ChapterNav_mobileLabel__LXcPM{padding-left:.3rem;color:color-mix(in oklab,var(--color-sky) 78%,transparent);font:600 .75rem/1 var(--font-mono),monospace;letter-spacing:.07em;text-transform:uppercase;white-space:nowrap}.ChapterNav_mobileTrigger__CH_Hg{display:grid;width:100%;min-width:0;min-height:2.75rem;grid-template-columns:auto minmax(0,1fr) auto;gap:.5rem;align-items:center;text-align:left;border:1px solid color-mix(in oklab,var(--color-sky) 22%,transparent);border-radius:var(--radius-full);padding:.5rem .85rem;color:var(--color-cream);background:color-mix(in oklab,var(--color-sky) 10%,transparent);font:600 .78rem/1 var(--font-ui),sans-serif}.ChapterNav_mobileOption__VNITK>span,.ChapterNav_mobileTrigger__CH_Hg>span:first-child{color:var(--color-sky);font-family:var(--font-mono),monospace;font-size:.72rem;font-variant-numeric:tabular-nums}.ChapterNav_mobileTrigger__CH_Hg strong{overflow:hidden;font:inherit;text-overflow:ellipsis;white-space:nowrap}.ChapterNav_mobileChevron__bD44q{width:.52rem;height:.52rem;border-right:1.5px solid var(--color-sky);border-bottom:1.5px solid var(--color-sky);transform:translateY(-.12rem) rotate(45deg);transition:transform var(--dur-fast) var(--ease-out-expo)}.ChapterNav_mobileTrigger__CH_Hg[aria-expanded=true] .ChapterNav_mobileChevron__bD44q{transform:translateY(.12rem) rotate(225deg)}.ChapterNav_mobileList__vENjp{position:absolute;top:calc(100% + .45rem);right:0;left:0;z-index:3;max-height:min(21rem,62svh);margin:0;overflow-y:auto;border:1px solid color-mix(in oklab,var(--color-sky) 22%,transparent);border-radius:var(--radius-md);padding:.35rem;background:var(--color-midnight-shadow);box-shadow:0 20px 42px -18px rgba(7,28,33,.82);list-style:none;transform-origin:top center;animation:ChapterNav_mobile-list-in__usfzo var(--dur-fast) var(--ease-out-expo) both}.ChapterNav_mobileOption__VNITK{display:grid;min-height:2.75rem;grid-template-columns:2rem minmax(0,1fr);gap:.45rem;align-items:center;border-radius:var(--radius-sm);padding:.45rem .65rem;color:color-mix(in oklab,var(--color-cream) 82%,transparent);font:550 .8rem/1.2 var(--font-ui),sans-serif;cursor:pointer}.ChapterNav_mobileOption__VNITK[data-highlighted=true]{background:color-mix(in oklab,var(--color-sky) 13%,transparent);color:var(--color-cream)}.ChapterNav_mobileOption__VNITK[aria-selected=true]{box-shadow:inset 0 0 0 1px color-mix(in oklab,var(--color-coral) 52%,transparent)}.ChapterNav_nav__dR7Jt:after{position:absolute;right:.9rem;bottom:0;left:.9rem;height:2px;border-radius:var(--radius-full);background:linear-gradient(to right,var(--color-coral) calc(var(--scroll-fraction, 0) * 100%),color-mix(in oklab,var(--color-sky) 18%,transparent) 0);content:"";pointer-events:none}.ChapterNav_mobileList__vENjp:focus-visible,.ChapterNav_mobileTrigger__CH_Hg:focus-visible{outline:2px solid var(--color-coral);outline-offset:2px}.ChapterNav_chip__ziYqy{min-height:2.75rem;padding-inline:.78rem}.ChapterNav_top__Wf0Bn{width:2.75rem;min-height:2.75rem;justify-content:center;padding:0}.ChapterNav_topLabel__fdqAo{display:none}}@keyframes ChapterNav_mobile-list-in__usfzo{0%{opacity:0;transform:scale(.98)}to{opacity:1;transform:scale(1)}}@media (max-height:560px){.ChapterNav_nav__dR7Jt{position:static;margin-top:.5rem}}@media (prefers-reduced-motion:reduce){.ChapterNav_chip__ziYqy,.ChapterNav_chip__ziYqy small,.ChapterNav_mobileChevron__bD44q,.ChapterNav_top__Wf0Bn{transition-duration:1ms}.ChapterNav_mobileList__vENjp{animation:none}}@media (forced-colors:active){.ChapterNav_mobileOption__VNITK[data-highlighted=true]{outline:2px solid Highlight;outline-offset:-2px}}