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.15s;display:flex}.app-shell .sr-toc-trigger:hover{background:var(--paper-2)}.app-shell .sr-toc-trigger .kicker{margin:0}.app-shell .sr-toc-chev{width:14px;height:14px;color:var(--ink-faint);flex:none}.app-shell .sr-toc-trigger[aria-expanded=true] .sr-toc-chev{transform:rotate(180deg)}.app-shell .sr-toc-reveal{grid-template-rows:0fr;display:grid}.app-shell .sr-toc-reveal[data-open]{grid-template-rows:1fr}.app-shell .sr-toc-inner{min-height:0;overflow:hidden}.app-shell .sr-toc-inner .toc{margin-top:4px;padding-top:2px}@media (prefers-reduced-motion:no-preference){.app-shell .sr-toc-chev{transition:transform .3s var(--ease-toggle),background .15s ease}.app-shell .sr-toc-reveal{transition:grid-template-rows .32s var(--ease-toggle)}}@media (max-width:1100px){.app-shell .sr-toc{display:none}}.app-shell .sr-switcher{margin-bottom:8px;position:relative}.app-shell .sr-switcher-trigger{align-items:center;gap:2px;width:100%;display:flex}.app-shell .sr-switcher-link{min-width:0;color:var(--ink);border-radius:var(--r-module);flex:1;align-items:center;gap:8px;padding:8px;text-decoration:none;transition:background .15s;display:flex}.app-shell .sr-switcher-link:hover{background:var(--sr-row-hover)}.app-shell .sr-switcher-link:focus-visible{outline:2px solid var(--slate);outline-offset:-2px}.app-shell .sr-ic{flex:none;width:15px;height:15px}.app-shell .sr-switcher-name{min-width:0;font-size:var(--ui-sm);color:var(--ink);flex:1;font-weight:600}.app-shell .sr-switcher-toggle{width:32px;height:32px;color:var(--ink);border:1px solid var(--line-strong);border-radius:var(--r-module);cursor:pointer;background:0 0;flex:none;justify-content:center;align-items:center;transition:background .15s,border-color .15s;display:flex}.app-shell .sr-switcher-toggle:hover,.app-shell .sr-switcher-toggle[aria-expanded=true]{background:var(--sr-row-hover);border-color:var(--line-contrast)}.app-shell .sr-switcher-toggle:focus-visible{outline:2px solid var(--slate);outline-offset:-2px}.app-shell .sr-switcher-chevron{width:14px;height:14px;color:var(--ink);flex:none}.app-shell .sr-switcher-toggle[aria-expanded=true] .sr-switcher-chevron{transform:rotate(180deg)}.app-shell .sr-switcher-panel{background:var(--raised);border:1px solid var(--line-strong);border-radius:var(--r-module);box-shadow:var(--lift-lg);z-index:20;padding:4px;position:absolute;top:calc(100% + 4px);left:0;right:0}.app-shell .sr-switcher-row{width:100%;font-family:var(--sans);font-size:var(--ui-sm);color:var(--ink-2);cursor:pointer;text-align:left;background:0 0;border:none;border-radius:8px;justify-content:space-between;align-items:center;gap:8px;padding:8px 10px;text-decoration:none;transition:background .15s,color .15s;display:flex}.app-shell .sr-switcher-row-main{align-items:center;gap:8px;min-width:0;display:flex}.app-shell .sr-switcher-row-label{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.app-shell .sr-switcher-row:hover{background:var(--sr-row-hover);color:var(--ink);transition-duration:0s}.app-shell .sr-switcher-row.is-active{background:var(--sr-row-active);color:var(--ink);font-weight:600}.app-shell .sr-switcher-row:focus-visible{outline:2px solid var(--slate);outline-offset:-2px}.app-shell .sr-switcher-row .check{width:14px;height:14px;color:var(--action-ink);flex:none}@keyframes sr-switcher-drop{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}@media (prefers-reduced-motion:no-preference){.app-shell .sr-switcher-chevron{transition:transform .3s var(--ease-toggle)}.app-shell .sr-switcher-panel{animation:sr-switcher-drop .18s var(--ease-toggle)}}.app-shell .sr-item-groups{flex-direction:column;gap:14px;display:flex}.app-shell .sr-item-group{flex-direction:column;gap:2px;display:flex}.app-shell .sr-item-group-label{margin:0 0 4px;padding:0 10px}.app-shell .sr-items{flex-direction:column;gap:2px;margin:0;padding:0;list-style:none;display:flex}.app-shell .sr-item{font-size:var(--ui-sm);color:var(--ink-2);white-space:nowrap;text-overflow:ellipsis;border-radius:7px;padding:6px 10px;text-decoration:none;transition:background .15s,color .15s;display:block;overflow:hidden}.app-shell .sr-item:hover{background:var(--sr-row-hover);color:var(--ink);transition-duration:0s}.app-shell .sr-item:focus-visible{outline:2px solid var(--slate);outline-offset:-2px}.app-shell .sr-item.is-current{color:var(--ink);background:var(--sr-row-active);font-weight:500;position:relative}.app-shell .sr-item.is-current:before{content:"";background:var(--slate);border-radius:2px;width:2px;position:absolute;top:8px;bottom:8px;left:3px}.tccc-v3 .app-shell .section-rail .toc a{transition:background .15s,color .15s}.tccc-v3 .app-shell .section-rail .toc a:hover{background:var(--sr-row-hover);transition-duration:0s}.tccc-v3 .app-shell .section-rail .toc a.on{background:var(--sr-row-active)}.tccc-v3 .app-shell .section-rail .toc a:focus-visible{outline:2px solid var(--slate);outline-offset:-2px}.tccc-v3 .app-shell .section-rail .toc .marker{width:2px;height:16px}.tccc-v3 .app-shell .section-rail .toc a.on .marker{background:var(--slate)}