.qsi-read{display:grid;grid-template-columns:minmax(0,1fr)}.qsi-read__column{min-width:0}.qsi-read__margin{display:none}@media(min-width:1180px){.qsi-read[data-spine=true]{grid-template-columns:clamp(168px,15vw,224px) minmax(0,1fr);column-gap:clamp(28px,3vw,56px)}.qsi-read[data-spine=true] .qsi-read__margin{display:flex;flex-direction:column;padding-top:var(--qs-space-6)}}.qsi-spine{display:block;flex:1 1 auto}.qsi-spine__pin{position:sticky;top:calc(var(--qs-nav-height) + var(--qs-space-7));display:grid;grid-template-columns:var(--qs-border) minmax(0,1fr);align-items:stretch}.qsi-spine__gauge{position:relative;width:var(--qs-border);background:var(--qs-rule)}.qsi-spine__ink{position:absolute;top:0;bottom:0;left:0;width:2px;background:var(--qs-teal);transform:scaleY(0);transform-origin:top center;transition:transform .14s linear;will-change:transform}.qsi-spine__index{min-height:0;max-height:calc(100dvh - var(--qs-nav-height) - var(--qs-space-10));overflow-y:auto;margin-left:-4px;padding-left:4px;scrollbar-width:thin}.qsi-spine__list{list-style:none;margin:0;padding:0;display:grid;gap:2px}.qsi-spine__link{display:grid;grid-template-columns:12px 20px minmax(0,1fr);align-items:start;column-gap:7px;padding:7px 0;border-bottom:0;font-family:var(--qs-font-mono);font-size:var(--qs-text-mono);line-height:1.45;letter-spacing:.02em;color:var(--qs-text-tertiary);transition:color var(--qs-dur-fast) var(--qs-ease)}.qsi-spine__list>li:first-child .qsi-spine__link{padding-top:0}.qsi-spine__link:hover{color:var(--qs-text)}.qsi-spine__link:focus-visible{outline:2px solid var(--qs-focus);outline-offset:2px}.qsi-spine__tick{width:12px;height:var(--qs-border);margin-top:.68em;background:var(--qs-rule-loud);transform-origin:left center;transition:transform var(--qs-dur-base) var(--qs-ease),background-color var(--qs-dur-base) var(--qs-ease)}.qsi-spine__num{font-variant-numeric:tabular-nums;transition:color var(--qs-dur-fast) var(--qs-ease)}.qsi-spine__label{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;line-clamp:3;overflow:hidden;text-transform:none}.qsi-spine__link[data-level="3"] .qsi-spine__tick{transform:scaleX(.6)}.qsi-spine__link[data-level="3"] .qsi-spine__label{padding-left:12px}.qsi-spine__link:hover .qsi-spine__tick{background:var(--qs-text)}.qsi-spine__link[data-current=true]{color:var(--qs-text)}.qsi-spine__link[data-current=true] .qsi-spine__num{color:var(--qs-text-accent)}.qsi-spine__link[data-current=true] .qsi-spine__tick{background:var(--qs-teal);transform:scaleX(1.55)}.qsi-spine__link[data-level="3"][data-current=true] .qsi-spine__tick{transform:scaleX(1.1)}.qsi-spine-rule{position:fixed;top:var(--qs-nav-height);left:0;right:0;z-index:39;height:2px;pointer-events:none;transition:transform .42s cubic-bezier(.22,1,.36,1)}.qsi-spine-rule[data-hidden=true]{transform:translateY(calc(-1 * var(--qs-nav-height)))}.qsi-spine-rule__ink{display:block;height:100%;background:var(--qs-teal);transform:scaleX(0);transform-origin:left center;transition:transform .14s linear;will-change:transform}@media(min-width:1180px){.qsi-spine-rule{display:none}}@media(prefers-reduced-motion:reduce){.qsi-spine__ink,.qsi-spine-rule,.qsi-spine-rule__ink,.qsi-spine__tick,.qsi-spine__num,.qsi-spine__link{transition:none}.qsi-spine-rule[data-hidden=true]{transform:none}}