.chapter-nav.svelte-qbqq47{position:sticky;top:.6rem;z-index:30;margin:0 0 -.4rem}.chapter-nav__toggle.svelte-qbqq47{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem .9rem;background:var(--lab-surface, hsl(225 25% 12%));border:1px solid var(--lab-border, rgba(34, 211, 238, .18));border-radius:999px;color:var(--lab-text, #e8f6ff);font-size:.85rem;font-weight:600;cursor:pointer;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.chapter-nav__toggle.svelte-qbqq47 i:where(.svelte-qbqq47):first-child{color:var(--luvex-bright-cyan, #67e8f9)}.chapter-nav__chev.svelte-qbqq47{font-size:.7rem;opacity:.7;transition:transform .2s ease}.chapter-nav.open.svelte-qbqq47 .chapter-nav__chev:where(.svelte-qbqq47){transform:rotate(180deg)}.chapter-nav__panel.svelte-qbqq47{display:none;margin:.5rem 0 0;padding:.6rem;background:var(--lab-surface, hsl(225 25% 12%));border:1px solid var(--lab-border, rgba(34, 211, 238, .18));border-radius:12px;box-shadow:0 18px 40px -18px #0009;max-height:60vh;overflow-y:auto}.chapter-nav.open.svelte-qbqq47 .chapter-nav__panel:where(.svelte-qbqq47){display:block}.chapter-nav__heading.svelte-qbqq47{margin:0 0 .4rem;padding-left:.5rem;font-size:.7rem;font-weight:650;letter-spacing:.12em;text-transform:uppercase;color:var(--lab-text-muted, #94c5d9)}.chapter-nav__list.svelte-qbqq47{list-style:none;margin:0;padding:0}.chapter-nav__list.svelte-qbqq47 li:where(.svelte-qbqq47){margin:0}.chapter-nav__list.svelte-qbqq47 a:where(.svelte-qbqq47){display:flex;align-items:center;gap:.6rem;padding:.4rem .6rem;border-radius:7px;border-left:2px solid transparent;color:var(--lab-text-muted, #b6d4e2);font-size:.88rem;line-height:1.35;text-decoration:none;transition:color .14s ease,background .14s ease,border-color .14s ease}.chapter-nav__list.svelte-qbqq47 a:where(.svelte-qbqq47):hover{color:var(--lab-text, #e8f6ff);background:#22d3ee0f}.chapter-nav__list.svelte-qbqq47 a.active:where(.svelte-qbqq47){color:var(--luvex-bright-cyan, #67e8f9);border-left-color:var(--luvex-bright-cyan, #67e8f9);background:#22d3ee14;font-weight:600}.chapter-nav__dash.svelte-qbqq47{display:none}.chapter-nav__label.svelte-qbqq47{display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}@media(min-width:1200px){.chapter-nav.svelte-qbqq47{position:fixed;top:50%;right:0;left:auto;transform:translateY(-50%);margin:0}.chapter-nav__toggle.svelte-qbqq47{display:none}.chapter-nav__panel.svelte-qbqq47{display:block;margin:0;padding:.5rem .7rem;max-height:72vh;overflow-y:auto;background:transparent;border:1px solid transparent;border-radius:12px 0 0 12px;box-shadow:none;scrollbar-width:none;transition:background .2s ease,border-color .2s ease,box-shadow .2s ease}.chapter-nav__panel.svelte-qbqq47::-webkit-scrollbar{width:0}.chapter-nav__heading.svelte-qbqq47{width:0;max-height:0;margin:0;padding:0;opacity:0;overflow:hidden;white-space:nowrap;text-align:right;transition:max-height .2s ease,opacity .2s ease,margin .2s ease}.chapter-nav__list.svelte-qbqq47 a:where(.svelte-qbqq47){justify-content:flex-end;gap:.7rem;padding:.26rem .4rem;border-left:none;background:none!important}.chapter-nav__dash.svelte-qbqq47{display:block;flex:none;width:16px;height:2px;border-radius:2px;background:var(--lab-text-muted, #94c5d9);opacity:.4;transition:width .2s ease,background .2s ease,opacity .2s ease}.chapter-nav__list.svelte-qbqq47 a:where(.svelte-qbqq47):hover .chapter-nav__dash:where(.svelte-qbqq47){opacity:.85;width:22px}.chapter-nav__list.svelte-qbqq47 a.active:where(.svelte-qbqq47) .chapter-nav__dash:where(.svelte-qbqq47){width:26px;opacity:1;background:var(--luvex-bright-cyan, #67e8f9)}.chapter-nav__label.svelte-qbqq47{display:block;max-width:0;opacity:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;text-align:right;color:var(--lab-text-muted, #b6d4e2);transition:max-width .25s ease,opacity .2s ease,color .14s ease}.chapter-nav__list.svelte-qbqq47 a:where(.svelte-qbqq47):hover .chapter-nav__label:where(.svelte-qbqq47){color:var(--lab-text, #e8f6ff)}.chapter-nav__list.svelte-qbqq47 a.active:where(.svelte-qbqq47) .chapter-nav__label:where(.svelte-qbqq47){color:var(--luvex-bright-cyan, #67e8f9);font-weight:600}.chapter-nav.svelte-qbqq47:hover .chapter-nav__panel:where(.svelte-qbqq47),.chapter-nav.svelte-qbqq47:focus-within .chapter-nav__panel:where(.svelte-qbqq47){background:color-mix(in srgb,var(--lab-surface, hsl(225 25% 12%)) 92%,transparent);border-color:var(--lab-border, rgba(34, 211, 238, .18));box-shadow:-20px 0 46px -24px #000000bf;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.chapter-nav.svelte-qbqq47:hover .chapter-nav__heading:where(.svelte-qbqq47),.chapter-nav.svelte-qbqq47:focus-within .chapter-nav__heading:where(.svelte-qbqq47){width:auto;max-height:2rem;opacity:1;margin:0 0 .45rem}.chapter-nav.svelte-qbqq47:hover .chapter-nav__label:where(.svelte-qbqq47),.chapter-nav.svelte-qbqq47:focus-within .chapter-nav__label:where(.svelte-qbqq47){max-width:230px;opacity:1}}@media(prefers-reduced-motion:reduce){.chapter-nav__panel.svelte-qbqq47,.chapter-nav__heading.svelte-qbqq47,.chapter-nav__label.svelte-qbqq47,.chapter-nav__dash.svelte-qbqq47,.chapter-nav__chev.svelte-qbqq47{transition:none!important}}