:root{--border:#1e2a3a;--muted:#8aa0b2;--reader-scale:1;--accent:#ff4fa3;--accent-hover:#ff7fc1;--accent-fn:oklch(68% .16 45);--accent-fs:oklch(65% .16 196);--accent-on:var(--accent);--accent-os:oklch(65% .16 268);--accent-on-soft:#ff4fa338;--accent-fn-soft:#be822838;--accent-fs-soft:#328ca038;--accent-os-soft:#6450aa38;color-scheme:dark;--n-bg:#050b12;--n-header:#091422;--n-sidebar:#0a1320;--n-panel:#0a1320;--n-panel-deep:#080f1a;--n-hover:#0d1a28;--n-elevated:#0b1a2a;--n-tree-open:#0b1220;--n-alpha:#091422e0;--n-text:#d7e2ee;--n-text-dim:#c8d8e8}html[data-theme=light]{color-scheme:light;--border:#c2bbb0;--muted:#7a736a;--n-bg:#f4efe6;--n-header:#eae4da;--n-sidebar:#e6e0d6;--n-panel:#ece6dc;--n-panel-deep:#e7e1d7;--n-hover:#dad4c8;--n-elevated:#e3ddd2;--n-tree-open:#dad4c8;--n-alpha:#e4ded4eb;--n-text:#1a1410;--n-text-dim:#312b23}*{box-sizing:border-box}body{background:var(--n-bg);color:var(--n-text);margin:0;font-family:system-ui,sans-serif}.sitebar{z-index:20;background:var(--n-header);border-bottom:1px solid var(--border);align-items:center;gap:12px;padding:10px 12px;display:flex;position:sticky;top:0;container:sitebar/inline-size}.menu-btn{background:var(--n-elevated);color:var(--n-text);border:1px solid var(--border);white-space:nowrap;border-radius:8px;padding:6px 10px}.crumbs{flex-wrap:nowrap;flex:1 1 0;align-items:center;gap:8px;min-width:0;margin-left:6px;display:flex}.chap-controls{align-items:center;gap:6px;margin-left:auto;display:inline-flex}.theme-toggle-btn{border:1px solid var(--border);background:var(--n-elevated);width:2rem;height:2rem;color:var(--n-text);cursor:pointer;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;padding:0;font-size:1.1rem;line-height:1;display:inline-flex}.theme-toggle-btn:hover{opacity:.8}.theme-icon{justify-content:center;align-items:center;font-size:1rem;line-height:1;display:inline-flex}.crumb-ellipsis,.crumb-sep{opacity:.6}.crumb-btn{border:1px solid var(--border);background:var(--n-elevated);color:var(--n-text);font:inherit;cursor:pointer;text-overflow:ellipsis;white-space:nowrap;border-radius:8px;flex-shrink:0;max-width:36ch;padding:6px 10px;line-height:1;transition:color .15s,border-color .15s;overflow:hidden}#crumbParent:hover,#crumbParent:focus-visible{color:var(--crumb-parent-hover-accent,var(--n-text));border-color:var(--crumb-parent-hover-accent,var(--border))}.crumb-btn[disabled]{opacity:.55;cursor:default;pointer-events:none}#crumbCurrent{text-overflow:ellipsis;white-space:nowrap;flex:1 1 0;min-width:0;overflow:hidden}@container sitebar (width<=720px){.crumb-btn{max-width:26ch}}.float-nav{top:calc(var(--sitebar-h,48px) + .5rem);z-index:25;flex-direction:column;gap:.3rem;display:none;position:fixed;right:.5rem}.float-nav-btn{border:1px solid var(--border);background:var(--n-alpha);width:2.25rem;height:2.25rem;color:var(--n-text);cursor:pointer;border-radius:6px;justify-content:center;align-items:center;padding:0;font-family:system-ui,-apple-system,sans-serif;font-size:1.25rem;line-height:1;display:flex}.float-nav-btn span{line-height:1;font-size:inherit;display:block}.float-nav-btn:disabled{opacity:.25;cursor:default}@container sitebar (width<=900px){.menu-label{display:none}.menu-btn{min-height:2.25rem}}@container sitebar (width<=680px){.chap-controls{display:none}}@media (width<=680px){.float-nav{display:flex}}@container sitebar (width<=480px){.crumb-btn{border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;width:2rem;min-width:2rem;max-width:2rem;height:2rem;padding:0;font-size:0;display:flex;overflow:visible}.crumb-btn:after{content:"↑";font-size:1rem;line-height:1;display:block;transform:translateY(-.05em)}}.app{grid-template-columns:280px 1fr;display:grid}.sidebar{border-right:1px solid var(--border);background:var(--n-sidebar);flex-direction:column;padding:12px 12px 40px;display:flex;position:relative}.brand{color:inherit;margin:8px 0 18px;font-weight:700;text-decoration:none;display:block}.nav-section{letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:16px 0 6px;font-size:12px}main{font-size:calc(1rem * var(--reader-scale,1));padding:20px 20px 40px}.overlay{z-index:15;background:#0006;position:fixed;inset:0}.scroll-top-btn{z-index:40;border:1px solid var(--border);background:var(--n-elevated);color:var(--n-text);font:inherit;cursor:pointer;opacity:0;pointer-events:none;border-radius:999px;padding:.5rem .75rem;transition:opacity .2s,transform .2s;position:fixed;bottom:4rem;right:1rem;transform:translateY(8px);box-shadow:0 4px 12px #0000004d}.scroll-top-btn[data-visible=true]{opacity:1;pointer-events:auto;transform:translateY(0)}.sidebar-collapse{pointer-events:none;z-index:60;justify-content:flex-end;margin-top:auto;padding:0 .75rem;display:flex;position:sticky;bottom:.5rem}.sidebar:not(:has(details.tree-item[open])) .sidebar-collapse{display:none}.nav-collapse-btn{z-index:40;border:1px solid var(--border);background:var(--n-bg);color:var(--n-text);font:inherit;cursor:pointer;opacity:.85;pointer-events:auto;border-radius:999px;padding:.35rem .6rem;font-size:.75rem;line-height:1;transition:opacity .2s,transform .2s,box-shadow .2s;transform:translateY(4px);box-shadow:0 4px 12px #0000004d}.nav-collapse-btn:hover{opacity:1;transform:translateY(0);box-shadow:0 6px 18px #0006}@media (width>=901px){.sidebar-collapse{bottom:1.25rem}}.sidebar-find{z-index:50;pointer-events:none;justify-content:flex-end;padding-right:.25rem;display:flex;position:sticky;top:.25rem}.nav-find-btn{pointer-events:none;border:1px solid var(--border);background:var(--n-bg);color:var(--n-text);font:inherit;cursor:pointer;opacity:0;border-radius:999px;padding:.35rem .6rem;font-size:.75rem;line-height:1;transition:opacity .2s,transform .2s,box-shadow .2s;transform:translateY(4px);box-shadow:0 4px 12px #0000004d}.nav-find-btn[data-visible=true]{opacity:.9;pointer-events:auto;transform:translateY(0)}.nav-find-btn[data-visible=true]:hover{opacity:1;box-shadow:0 6px 18px #0006}@media (width<=900px){.app{grid-template-columns:1fr}.sidebar{z-index:30;width:78%;max-width:360px;transition:transform .2s;position:fixed;inset:48px auto 0 0;transform:translate(-100%)}.sidebar[data-open=true]{transform:translate(0)}.overlay{top:var(--sitebar-h,48px);bottom:0;left:min(78vw,360px);right:0}}.sidebar{--nav-disclosure-hit-base-right:28px;--nav-disclosure-hit-touch-extra:18px;--nav-disclosure-hit-current-extra:0px}@media (pointer:coarse){.sidebar{--nav-disclosure-hit-current-extra:var(--nav-disclosure-hit-touch-extra)}}.sidebar[data-nav-input=touch]{--nav-disclosure-hit-current-extra:var(--nav-disclosure-hit-touch-extra)}.sidebar[data-nav-input=fine]{--nav-disclosure-hit-current-extra:0px}.tree{margin:0;padding:0;list-style:none}.tree li{margin:4px 0}.tree a.nav-link{color:inherit;border-radius:6px;padding:8px 10px;text-decoration:none;display:block}.tree .tree-item>summary{cursor:pointer;border-radius:6px;align-items:center;gap:6px;margin:0;padding:6px;list-style:none;display:flex}.tree .tree-item>summary::-webkit-details-marker{display:none}.tree .tree-item[open]>summary{background:var(--n-tree-open);outline:1px solid var(--border)}.tree .caret:before{content:"▸";display:inline-block;transform:translateY(-1px)}.tree .tree-item[open]>summary>.caret:before{content:"▾"}.tree .tree-children{border-left:1px dashed var(--border);margin:6px 0 0;padding-left:14px;list-style:none}.tree [aria-current=page]{background:var(--n-tree-open);outline:1px solid var(--border)}.pdf-embed object{border:1px solid var(--border);border-radius:8px;width:100%;height:clamp(420px,70vh,900px)}.pdf-embed figcaption{color:var(--muted);margin-top:6px;font-size:.9rem}html,body{height:100%;overflow:hidden}.app{top:var(--sitebar-h,48px);position:fixed;bottom:0;left:0;right:0;overflow:hidden}.sidebar,main{-webkit-overflow-scrolling:touch;scrollbar-gutter:stable;overflow:auto}.sidebar{overscroll-behavior:contain}main{overscroll-behavior-y:contain}.app[data-nav=closed]{grid-template-columns:0 1fr}.app[data-nav=closed] .sidebar{visibility:hidden}main{padding-bottom:calc(40px + 33vh)}a,a:visited{color:var(--accent)}a:hover,a:focus{color:var(--accent-hover)}.sidebar .tree li[class^=tree-depth-]>details.tree-item[open]>summary{background:var(--n-tree-open);outline:1px solid var(--border);z-index:1;position:sticky}.sidebar li.tree-depth-0>details.tree-item[open]>summary{top:0}.sidebar li.tree-depth-1>details.tree-item[open]>summary{top:2.4rem}.sidebar li.tree-depth-2>details.tree-item[open]>summary{top:4.8rem}.sidebar li.tree-depth-3>details.tree-item[open]>summary{top:7.2rem}.sidebar .tree li[class^=tree-depth-]>details.tree-item[open]>ul.tree-children{z-index:0;position:relative}.sidebar li.tree-depth-0>details.tree-item[open]>summary.is-sticky-active{z-index:40}.sidebar li.tree-depth-1>details.tree-item[open]>summary.is-sticky-active{z-index:30}.sidebar li.tree-depth-2>details.tree-item[open]>summary.is-sticky-active{z-index:20}.sidebar li.tree-depth-3>details.tree-item[open]>summary.is-sticky-active{z-index:10}.tree .tree-item>summary{position:relative;overflow:visible}.tree .tree-item>summary:before{content:"";width:calc(100vw + var(--nav-disclosure-hit-base-right) + var(--nav-disclosure-hit-current-extra));z-index:2;cursor:pointer;background:0 0;position:absolute;top:0;bottom:0;left:-100vw}.tree .caret,.tree .tree-item>summary>.nav-branch-link{z-index:1;position:relative}#reader-scale-ctrl{z-index:39;align-items:center;gap:.15rem;display:flex;position:fixed;bottom:1.5rem;right:1rem}.rs-btn{border:1px solid var(--border);background:var(--n-alpha);min-width:1.75rem;height:1.75rem;color:var(--n-text);cursor:pointer;white-space:nowrap;border-radius:6px;justify-content:center;align-items:center;padding:0 .3rem;font-family:system-ui,-apple-system,sans-serif;font-size:.8rem;line-height:1;transition:opacity .15s;display:flex}.rs-btn:hover{opacity:.75}.rs-btn:disabled{opacity:.25;cursor:default}#rsReset{min-width:2.75rem;font-size:.7rem}html[data-page-type=general] #prevChap,html[data-page-type=general] #nextChap,html[data-page-type=general] #floatNav,html[data-page-type=general] #crumbParent,html[data-page-type=general] #crumbSep,html[data-page-type=general] #crumbEllipsis{display:none}html[data-page-type=general] #chapControls{display:inline-flex}@media (width<=900px){body:has(#sidebar[data-open=true]) #reader-scale-ctrl{display:none}}.reader-prose{font-size:1em}.tree-item[data-astro-cid-6dzjc5ru][data-tree-area]>.tree-summary[data-astro-cid-6dzjc5ru]:hover,.tree-item[data-astro-cid-6dzjc5ru][data-tree-area]>.tree-summary[data-astro-cid-6dzjc5ru]:has(.nav-branch-link[aria-current=page]),.tree-item[data-astro-cid-6dzjc5ru][data-tree-area]>.tree-summary[data-astro-cid-6dzjc5ru]:has(.nav-branch-link:focus-visible){border-color:var(--tree-accent);box-shadow:inset 0 0 0 1px var(--tree-accent)}.nav-leaf-link[data-astro-cid-6dzjc5ru][data-tree-area]:hover,.nav-leaf-link[data-astro-cid-6dzjc5ru][data-tree-area][aria-current=page],.nav-leaf-link[data-astro-cid-6dzjc5ru][data-tree-area]:focus-visible{color:var(--tree-accent)}#gallery-lightbox{z-index:9000;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}#gallery-lightbox[hidden]{display:none}#gallery-lb-backdrop{cursor:pointer;background:#000000e0;position:absolute;inset:0}#gallery-lb-figure{z-index:1;flex-direction:column;align-items:center;max-width:min(90vw,1200px);max-height:90vh;margin:0;display:flex;position:relative}#gallery-lb-img{object-fit:contain;max-width:100%;max-height:80vh;display:block}#gallery-lb-caption{color:#ffffffd9;text-align:center;max-width:60ch;margin-top:.5rem;font-size:.8rem}#gallery-lb-close,#gallery-lb-prev,#gallery-lb-next{cursor:pointer;border:none;justify-content:center;align-items:center;padding:0;font-family:system-ui,-apple-system,sans-serif;line-height:1;display:flex}#gallery-lb-close span,#gallery-lb-prev span,#gallery-lb-next span{line-height:1;font-size:inherit;display:block;transform:translateY(-.05em)}#gallery-lb-close{z-index:2;color:#fff;background:#0009;border-radius:50%;width:2.25rem;height:2.25rem;font-size:1.4rem;position:fixed;top:1rem;right:1rem;border:1px solid #fff6!important}#gallery-lb-prev,#gallery-lb-next{z-index:2;color:#fff;background:#0000008c;border-radius:.25rem;width:2.5rem;height:4rem;font-size:2rem;position:fixed;top:50%;transform:translateY(-50%);border:1px solid #ffffff4d!important}#gallery-lb-prev{left:.5rem}#gallery-lb-next{right:.5rem}#gallery-lb-prev:disabled,#gallery-lb-next:disabled{opacity:.25;cursor:default}