.understory-shell{width:min(1400px,calc(100% - 80px));--reading-width:860px;padding-bottom:0}.understory-shell>.masthead-slot{position:relative;z-index:30}.understory-shell .scroll-masthead[data-us-header-boundary]:before{opacity:0;transition:opacity .16s ease}.us-icon{display:inline-block;flex:0 0 auto;width:20px;height:20px;background:currentColor;mask:var(--us-icon) center/contain no-repeat;vertical-align:middle}.understory-intro{font-family:var(--font-sans)}.us-hero{display:grid;grid-template-columns:minmax(240px,.8fr) minmax(0,2.25fr);column-gap:44px;align-items:center;min-height:min(880px,calc(100svh - 106px));padding:40px 0 52px;position:relative}.us-hero-heading{grid-row:1 / 3;align-self:center;padding-bottom:36px}.us-product-name{display:flex;align-items:center;gap:13px;margin-bottom:30px}.us-product-name img{width:48px;height:48px;border-radius:13px;box-shadow:0 8px 28px #74c18415}.us-product-name h1{font:600 clamp(23px,2.25vw,34px)/1 var(--font-sans);letter-spacing:-.045em}.us-hero-heading>h2{font-size:clamp(30px,3vw,45px);font-weight:550;line-height:1.35;letter-spacing:-.035em;margin:0 0 22px}.us-hero-heading>h2>span{color:var(--accent)}.us-hero-heading>p{font-size:16px;line-height:1.9;color:#a2b3a8;margin:0;max-width:290px}.us-window-stage{grid-column:2;position:relative;width:100%;aspect-ratio:1.6;min-width:0;align-self:end;isolation:isolate}.us-window-stage:before{content:"";position:absolute;inset:-24% -20%;background:radial-gradient(ellipse at 35% 35%,#74c18432,transparent 65%),radial-gradient(ellipse at 65% 65%,#74c18423,transparent 65%);-webkit-mask-image:radial-gradient(ellipse,#000 25%,transparent 70%);mask-image:radial-gradient(ellipse,#000 25%,transparent 70%);z-index:-1;pointer-events:none}.us-window{position:absolute;top:0;left:0;width:1400px;height:875px;transform-origin:top left;transform:scale(var(--us-window-scale,.6));overflow:hidden;border-radius:14px;background:transparent;font:14px/1.5 var(--font-sans);color:#e7e7e7;--us-panel:#282828a8;--us-line:#ffffff14}.us-window-frame{position:absolute!important;inset:0;border-radius:14px;background:linear-gradient(135deg,#ffffff05,#74c18408),#2020208c;backdrop-filter:blur(24px) saturate(125%);-webkit-backdrop-filter:blur(24px) saturate(125%);border:1px solid #ffffff20;box-shadow:0 22px 75px #0005,0 1px #ffffff10 inset;pointer-events:none}.us-topbar{position:relative;z-index:3;height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 24px 0 116px}.us-traffic-lights{position:absolute;left:20px;top:26px;display:flex;gap:8px}.us-traffic-lights i{width:12px;height:12px;border-radius:50%;background:#ff5f57;box-shadow:inset 0 0 0 1px #00000020}.us-traffic-lights i:nth-child(2){background:#febc2e}.us-traffic-lights i:nth-child(3){background:#28c840}.us-app-brand{display:flex;align-items:center;gap:13px}.us-logo-mark{width:24px;height:24px;filter:invert(1)}.us-app-brand strong{font-size:14px;font-weight:600}.us-app-brand>span{font-size:12px;color:#b5b5b5;margin-left:6px}.us-window .us-module-nav{position:absolute;top:12px;left:50%;transform:translate(-50%);display:flex;padding:4px;gap:4px;background:#303030dd;border:1px solid var(--us-line);border-radius:11px;height:40px}.us-module-nav :is(button,.nav-link){display:flex;align-items:center;justify-content:center;gap:7px;min-width:80px;padding:4px 12px;border-radius:8px;color:#b5b5b5;font:500 13px var(--font-sans);transition:background .25s,color .25s}.us-module-nav :is(button,.nav-link)>span{display:flex;align-items:center;gap:7px}.us-module-nav :is(button,.nav-link)[aria-selected=true]{background:#367b46;color:#fff;box-shadow:0 1px 3px #0003}.us-module-nav .us-icon{width:16px;height:16px}.us-top-actions{display:flex;align-items:center;gap:10px;font-size:12px;color:#b5b5b5}.us-top-actions .us-icon:last-child{margin-left:18px}.us-scenes{position:relative;height:calc(100% - 64px);padding:12px 22px 22px}.us-scene{position:relative;height:100%;min-width:0}.us-surface{position:relative}.us-reader{display:grid;grid-template-columns:224px minmax(0,1fr) 44px 280px;gap:12px;padding-bottom:26px}.us-toc,.us-peek,.us-wiki-nav,.us-wiki-page,.us-chat-history,.us-chat-page{background:var(--us-panel);border:1px solid var(--us-line);border-radius:12px;min-height:0;overflow:hidden}.us-scroll{overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:#ffffff20 transparent}.us-scroll::-webkit-scrollbar{width:4px}.us-scroll::-webkit-scrollbar-thumb{background:#ffffff20;border-radius:5px}.us-panel-head{height:48px;display:flex;align-items:center;justify-content:space-between;padding:0 15px;border-bottom:1px solid var(--us-line);font-weight:600;font-size:13px}.us-panel-head .us-icon{width:17px;height:17px;color:#b5b5b5}.us-toc-body{padding:20px 16px}.us-toc-body>strong{display:block;color:#74c184;font-size:15px}.us-toc-body>small{display:block;color:#b5b5b5;margin:6px 0 20px;font-size:11px}.us-chapter-selected{background:#367b46;color:#fff;box-shadow:none;border-radius:7px;padding:10px 12px;font-size:13px}.us-toc-note{color:#8e9b92;font-size:12px;line-height:1.8;padding-top:20px}.us-paper{background:#252525;border:1px solid var(--us-line);border-radius:0;-webkit-mask-image:linear-gradient(transparent,#000 18px,#000 calc(100% - 12px),transparent);mask-image:linear-gradient(transparent,#000 18px,#000 calc(100% - 12px),transparent)}.us-chapter-heading{text-align:center;padding:36px 18px 24px}.us-chapter-heading>small{font-size:12px;color:#969696}.us-chapter-heading h3{font:600 28px/1.5 var(--font-serif);margin:14px 0 10px}.us-chapter-heading>p{font:11px/1.5 var(--font-sans);color:#969696;margin:0}.us-chapter-copy{font:400 21px/2.05 var(--font-serif);padding:6px 38px 40px;color:#e7e7e7}.us-chapter-copy p{margin:0 0 20px}.us-inline-term{font:inherit;color:#9fd7ab;background:#74c18414;box-shadow:0 1px #74c18470}.us-rail{display:flex;flex-direction:column;gap:4px;align-self:start;background:#303030dd;border:1px solid var(--us-line);border-radius:10px;padding:4px}.us-rail>.us-ink{display:flex;flex-direction:column;gap:4px}.us-rail button,.us-rail span.us-rail-selected,.us-rail>.us-ink>span{width:34px;height:36px;display:grid;place-items:center;border-radius:7px;color:#b5b5b5}.us-rail .us-rail-selected{background:#367b46;color:#fff!important}.us-rail .us-icon{width:18px;height:18px}.us-peek-body{padding:20px 18px 26px}.us-peek-body>small{color:#969696;font-size:11px}.us-peek-body h3{font-size:19px;font-weight:600;margin:13px 0 18px}.us-peek-body>p{font-size:13px;line-height:1.85;color:#b5b5b5}.us-peek-body h4{font-size:12px;color:#b5b5b5;margin:26px 0 8px}.us-entity{display:block;position:relative;width:100%;padding:13px 0;border-bottom:1px solid var(--us-line);text-align:left}.us-entity strong{font-size:13px;font-weight:550}.us-entity small{display:block;font-size:12px;line-height:1.7;color:#b5b5b5;margin-top:5px}.us-entity .us-icon{position:absolute;right:0;top:14px;width:16px;height:16px;color:#969696}.us-reading-progress{position:absolute;bottom:0;left:50%;transform:translate(-50%);padding:4px 12px;border:1px solid var(--us-line);border-radius:9px;background:#303030fa;font:600 11px var(--font-sans);color:#74c184}.us-reading-progress i{height:2px;flex:1;background:linear-gradient(to right,#74c184 28%,#ffffff12 28%)}.us-wiki{display:grid;grid-template-columns:224px minmax(0,1fr);gap:24px}.us-wiki-nav>.us-ink,.us-chat-history>.us-ink{padding:20px 16px}.us-wiki-nav small{font-size:11px;color:#84948a}.us-wiki-nav h4{font-size:13px;margin:26px 0 12px}.us-wiki-page{padding:32px 44px}.us-wiki-breadcrumb{font-size:12px;color:#969696}.us-wiki-page h3{font:600 32px var(--font-serif);margin:18px 0 10px}.us-wiki-lead{color:#b5b5b5;font-size:14px;border-bottom:1px solid #ffffff12;padding-bottom:18px}.us-wiki-page p{font-size:15px;line-height:1.9}.us-wiki-page h4{font-size:18px;font-weight:550;margin:27px 0 10px}.us-infobox{float:right;width:248px;border:1px solid #ffffff14;background:#ffffff04;margin:6px 0 20px 28px;border-radius:8px;overflow:hidden}.us-infobox h4{font-size:16px;text-align:center;margin:0;padding:15px;background:#74c18412}.us-infobox dl{display:grid;grid-template-columns:72px 1fr;font-size:12px;padding:16px;gap:15px 10px;margin:0}.us-infobox dt{color:#969696}.us-infobox dd{margin:0}.us-citation{display:inline-flex;align-items:center;gap:5px;color:#87c797;background:#74c18410;padding:4px 8px;border-radius:4px;font:11px var(--font-sans);vertical-align:middle}.us-citation .us-icon{width:12px;height:12px}.us-wiki-foot{font-size:11px!important;color:#82948a}.us-chat{display:grid;grid-template-columns:224px minmax(0,1fr);gap:24px}.us-history-current{padding:12px;background:#74c1840c;border-radius:7px;box-shadow:inset 2px 0 #74c184;font-size:13px}.us-history-current small{display:block;color:#969696;font-size:11px;margin-top:8px}.us-chat-page{display:flex;flex-direction:column}.us-chat-page>.us-scroll{flex:1;min-height:0}.us-messages{max-width:830px;margin:0 auto;padding:24px 34px;font-size:15px;line-height:1.9}.us-question{background:#74c18410;margin:0 0 24px auto;padding:14px 20px;border:1px solid #74c18415;border-radius:12px;width:max-content;max-width:100%}.us-messages h3{font-size:22px;font-weight:550;margin:24px 0 20px}.us-messages p{margin:0 0 17px}.us-messages ul{padding-left:22px;margin:18px 0}.us-messages li{margin:10px 0}.us-messages blockquote{border-left:2px solid #74c18480;padding:8px 18px;background:#74c18405;margin:20px 0;color:#bccfc1}.us-messages blockquote button{display:block;margin-top:12px}.us-chat-wiki-card{display:flex;align-items:center;gap:14px;width:100%;padding:16px;border:1px solid #ffffff15;border-radius:8px;background:#ffffff03;text-align:left}.us-chat-wiki-card>span:nth-child(2){flex:1}.us-chat-wiki-card strong{display:block;font-size:14px}.us-chat-wiki-card small{display:block;font-size:12px;color:#8f9f94;margin-top:4px}.us-composer{display:flex;align-items:center;justify-content:space-between;border:1px solid #ffffff15;border-radius:12px;background:#252525;padding:18px 20px;margin:12px 26px 24px;font-size:13px;color:#969696}.us-composer>span{display:grid;place-items:center;border-radius:7px;background:#367b46;color:#fff;width:32px;height:32px}.us-window-footer{grid-column:2;display:flex;justify-content:space-between;align-items:center;padding-top:18px;color:#778d7e;font-size:11px}.us-window-footer button{display:flex;align-items:center;gap:6px;color:#9caf9f;font-size:11px}.us-window-footer .us-icon{width:14px;height:14px}.us-window-footer button[aria-pressed=true]{color:#74c184}.us-wireframe{position:absolute;inset:0;z-index:8;width:100%;height:100%;pointer-events:none;overflow:visible}.us-wireframe rect{fill:none;stroke:#9de5ad;stroke-width:1.2;stroke-dasharray:1;stroke-dashoffset:1;opacity:.8}.us-window[data-revealing]{pointer-events:none}.us-window[data-revealing] .us-surface{background:transparent!important;border-color:transparent!important;box-shadow:none!important}.us-window[data-revealing] .us-panel-head{border-color:transparent}.us-window[data-revealing] .us-ink{opacity:0}.us-window[data-phase=fill] .us-surface{animation:us-surface-in .6s ease both}.us-window[data-phase=fill] .us-ink{animation:us-ink-in .55s .35s ease both}@keyframes us-surface-in{0%{opacity:0}to{opacity:1}}@keyframes us-ink-in{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}html[data-understory-motion=animate] .us-window:not([data-presented]) .us-surface{background:transparent!important;border-color:transparent!important;box-shadow:none!important}html[data-understory-motion=animate] .us-window:not([data-presented]) .us-ink{opacity:0}.us-feature-section{padding:50px 0 86px;position:relative}.us-feature-heading{margin-bottom:30px}.us-feature-heading h2{font-size:clamp(26px,2.5vw,35px);letter-spacing:-.035em;font-weight:550;margin:0 0 12px}.us-feature-heading h2>span{color:#8ca193}.us-feature-heading>p{font-size:15px;color:#8eaa97;line-height:1.8;margin:0}.us-feature-tabs{display:flex;gap:30px;border-bottom:1px solid #ffffff12;margin-bottom:32px}.us-feature-tabs button{position:relative;padding:13px 0 17px;font-size:14px;font-weight:500;color:#82988b;transition:color .2s}.us-feature-tabs button[aria-selected=true]{color:#a0dbaf}.us-feature-tabs button:after{content:"";position:absolute;bottom:-1px;left:0;right:0;height:1px;background:#74c184;opacity:0;transition:opacity .3s}.us-feature-tabs button[aria-selected=true]:after{opacity:.25}.us-feature-tabs button>i{position:absolute;bottom:-1px;left:0;width:calc(var(--video-progress,0) * 100%);height:2px;background:#74c184;opacity:0}.us-feature-tabs button[aria-selected=true]>i{opacity:1}.us-feature-layout{display:grid;grid-template-columns:minmax(0,2.1fr) minmax(240px,.9fr);gap:48px;align-items:center}.us-video-stage{position:relative;aspect-ratio:1914/1336;border-radius:14px;overflow:hidden;border:1px solid #ffffff0d;background:#151e18;box-shadow:0 25px 65px #0003}.us-video-stage video,.us-video-poster{position:absolute;inset:0;width:100%;height:100%;object-fit:contain}.us-video-stage video{opacity:0;transition:opacity .28s ease}.us-video-stage[data-ready] video{opacity:1}.us-video-stage[data-ready] .us-video-poster{opacity:0;transition:opacity .28s ease}.us-video-poster img{display:block;width:100%;height:100%;object-fit:contain}.us-video-loading{position:absolute;bottom:16px;left:16px;display:flex;align-items:center;gap:8px;border-radius:20px;background:#101512dd;padding:9px 12px;font-size:11px;color:#c5d9cd}.us-video-loading>span{width:14px;height:14px;border:1px solid #74c18450;border-top-color:#74c184;border-radius:50%;animation:us-spinner .8s linear infinite}@keyframes us-spinner{to{transform:rotate(360deg)}}.us-video-start{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:56px;height:56px;display:grid;place-items:center;border:1px solid #74c18470;border-radius:50%;background:#101512dd;color:#bce8c7}.us-feature-copy h3{font-size:clamp(24px,2.3vw,32px);font-weight:550;letter-spacing:-.03em;line-height:1.45;margin:0 0 22px}.us-feature-copy p{font-size:14px;line-height:1.95;color:#9bad9f;margin:0 0 16px}.us-feature-copy .us-demo-note{font-size:11px;color:#668a72;margin-top:25px}.us-video-controls{display:flex;align-items:center;flex-wrap:wrap;gap:18px;margin-top:26px}.us-video-controls button{display:flex;align-items:center;gap:6px;font-size:11px;color:#99b0a0;white-space:nowrap}.us-video-controls .us-icon{width:14px;height:14px}.us-video-controls button[aria-pressed=true]{color:#74c184}.us-feature-copy .us-video-message{font-size:11px;margin-top:12px;color:#b9cabf;min-height:1.6em}@media(hover:hover)and (pointer:fine){.us-window button:hover{filter:brightness(1.2)}.us-feature-tabs button:hover,.us-video-controls button:hover,.us-window-footer button:hover{color:#cef0d6}}@media(min-width:1400px){.understory-shell .reading-page{margin-left:auto;margin-right:120px}.understory-shell .reading-outline{left:max(24px,calc((100vw - 1400px)/2));width:210px;background:transparent;top:150px;transition:opacity .3s,visibility .3s}}@media(max-width:1100px){.understory-shell{width:calc(100% - 56px)}.us-hero{grid-template-columns:1fr;gap:0;min-height:0;padding:32px 0 60px}.us-hero-heading{grid-row:auto;text-align:center;padding:0 0 30px}.us-product-name{justify-content:center;margin-bottom:20px}.us-hero-heading>h2{font-size:38px;margin-bottom:16px}.us-hero-heading>h2 br{display:none}.us-hero-heading>p{max-width:550px;margin:auto;font-size:15px}.us-window-stage,.us-window-footer{grid-column:1}.us-feature-layout{gap:30px;grid-template-columns:minmax(0,1.9fr) minmax(230px,1fr)}}@media(max-width:760px){.us-feature-layout{grid-template-columns:1fr;gap:26px}.us-feature-heading{margin-bottom:20px}.us-feature-copy h3{font-size:25px;margin-bottom:15px}.us-feature-copy h3 br{display:none}.us-feature-tabs{gap:24px;margin-bottom:22px}.us-feature-tabs button{font-size:13px}.us-feature-copy p{font-size:15px}.us-feature-section{padding:24px 0 40px}.understory-shell .reading-page{margin-top:46px}}@media(max-width:560px){.understory-shell{width:calc(100% - 36px)}.us-hero{padding-top:28px;padding-bottom:44px}.us-product-name img{width:40px;height:40px;border-radius:10px}.us-product-name h1{font-size:28px}.us-hero-heading>h2{font-size:29px;line-height:1.45}.us-hero-heading>h2 br{display:block}.us-hero-heading>p{font-size:14px;max-width:300px}.us-window-stage{aspect-ratio:1.6}.us-window-footer{font-size:10px;padding-top:12px}.us-feature-tabs{gap:0;justify-content:space-between}.us-feature-tabs button{font-size:12px}.understory-shell .reading-content{font-size:17px}}@media(prefers-reduced-motion:reduce){.us-window *,.us-video-stage video,.us-video-poster,.us-feature-tabs button{animation:none!important;transition:none!important}.us-wireframe{display:none}}.us-volume-list{padding:8px 8px 24px}.us-volume-heading{display:flex;align-items:center;justify-content:space-between;padding:10px;min-height:48px}.us-volume-heading strong{display:block;font-size:13px;font-weight:600;color:#e7e7e7}.us-volume-heading small{display:block;font-size:11px;color:#969696;margin-top:3px}.us-volume-heading .us-icon{width:13px;height:13px;color:#b5b5b5}.us-chapter-list{list-style:none;margin:0;padding:2px 0 10px 8px}.us-chapter-list li{display:flex;align-items:center;justify-content:space-between;gap:8px;min-height:34px;padding:7px 10px;margin:2px 0;border-radius:7px;font-size:12px;line-height:1.5}.us-chapter-list li small{color:#969696;font-size:10px}.us-chapter-list .us-chapter-selected small{color:#ffffffb3}.us-wiki-directory ul,.us-conversation-list ul{list-style:none;margin:0;padding:0}.us-wiki-nav>.us-wiki-directory{padding:8px 10px 24px}.us-directory-home{font-size:13px;font-weight:600;padding:12px 10px;color:#e7e7e7}.us-wiki-directory section h4{display:flex;align-items:center;justify-content:space-between;margin:12px 0 3px;padding:8px 10px;font-size:12px;font-weight:500;color:#b5b5b5}.us-wiki-directory h4 .us-icon{width:12px;height:12px}.us-wiki-directory li{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:9px 10px;margin:2px 0;font-size:12px;border-radius:7px}.us-wiki-directory li strong{font-weight:400}.us-wiki-directory li small{font-size:10px;color:#969696}.us-wiki-directory section:first-of-type li{display:block}.us-wiki-directory section:first-of-type small{display:block;margin-top:4px}.us-directory-current{background:#367b46;color:#fff}.us-wiki-directory .us-directory-current small{color:#ffffffb3}.us-wiki-page{padding:0;background:#252525}.us-entry-header{display:flex;align-items:flex-start;gap:24px;justify-content:space-between;padding:32px 40px 26px;background:#303030;border-bottom:1px solid var(--us-line)}.us-entry-header>div{max-width:730px}.us-entry-header small{font-size:12px;color:#969696}.us-entry-header h3{font:600 34px/1.4 var(--font-sans);margin:12px 0;letter-spacing:-.02em}.us-entry-header p{font-size:13px;line-height:1.9;color:#b5b5b5;margin:0}.us-entry-header>dl{display:grid;grid-template-columns:max-content max-content;gap:10px 12px;margin:5px 0 0;font-size:11px;white-space:nowrap}.us-entry-header dt{color:#969696}.us-entry-header dd{margin:0}.us-entry-body{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:24px;padding:28px 40px 48px;align-items:start}.us-entry-body>.us-infobox{grid-column:2;grid-row:1;float:none;width:100%;margin:0;background:#303030;border-color:#444;border-radius:10px}.us-entry-body>.us-infobox h4{background:#303030;border-bottom:1px solid #444;font:600 18px/1.5 var(--font-sans)}.us-entry-prose{grid-column:1;grid-row:1;min-width:0}.us-entry-prose p{margin:0 0 16px;font-size:14px;line-height:1.9}.us-entry-prose h4{margin:28px 0 12px;font-size:18px;font-weight:600}.us-entry-prose>p:first-child{margin-top:0}.us-entry-prose blockquote{margin:20px 0;padding:8px 18px;border-left:2px solid #74c18470;color:#b5b5b5;font-size:14px}.us-entry-prose blockquote small{display:block;margin-top:8px;color:#969696;font-size:11px}.us-related-entries{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.us-related-entries>span{border:1px solid #444;border-radius:9px;padding:12px;font-size:13px}.us-related-entries small{display:block;margin-top:6px;font-size:11px;color:#969696;line-height:1.7}.us-work-navigation{border:1px solid #444;border-radius:9px;margin-top:28px;overflow:hidden}.us-work-navigation h4{margin:0;text-align:center;padding:12px;background:#303030;font-size:14px}.us-work-navigation dl{display:grid;grid-template-columns:64px 1fr;gap:12px;padding:15px;font-size:12px;line-height:1.8;margin:0}.us-work-navigation dt{color:#969696}.us-work-navigation dd{margin:0}.us-chat-history>.us-conversation-list{padding:4px 8px 24px}.us-conversation-list section h4{font:500 11px var(--font-sans);color:#969696;margin:16px 10px 8px}.us-conversation-list li{padding:12px 10px;margin:3px 0;border-radius:7px}.us-conversation-list strong{display:block;font-size:13px;font-weight:400;line-height:1.6}.us-conversation-list small{display:block;color:#969696;font-size:11px;line-height:1.7;margin-top:5px}.us-conversation-list .us-history-current{background:#ffffff0a;box-shadow:none}.us-spoiler-fragment{position:relative;border-radius:5px;cursor:pointer;outline:none}.us-spoiler-content{filter:blur(3px);opacity:.12;-webkit-user-select:none;user-select:none;transition:filter .24s ease,opacity .24s ease}.us-spoiler-cover{position:absolute;inset:0;z-index:3;display:flex;align-items:flex-start;min-height:1.5em;padding:.25em .45em;overflow:hidden;border-radius:inherit;background:color-mix(in srgb,#74c184 18%,#252525);color:#e7e7e7;font-size:12px;font-weight:700;letter-spacing:.04em;transition:opacity .22s ease}.us-spoiler-fragment.unlocked{background:#74c1841f}.us-spoiler-fragment.unlocked .us-spoiler-content{filter:none;opacity:1;-webkit-user-select:text;user-select:text}.us-spoiler-fragment.unlocked .us-spoiler-cover{opacity:0;pointer-events:none}.us-spoiler-fragment:focus-visible{outline:1px solid #74c184;outline-offset:3px}.us-track-title{display:flex;align-items:center;justify-content:space-between}.us-track-title h4{margin-bottom:0}.us-track-title>span{color:#b5b5b5;font-size:12px}.us-track-scale{display:flex;justify-content:space-between;margin:14px 0 8px 60px;color:#969696;font-size:10px}.us-track-map{display:grid;gap:8px}.us-track-source{display:grid;grid-template-columns:52px minmax(0,1fr);gap:8px;align-items:start;--track-color:#74c184}.us-track-source.source-citation{--track-color:#b5b5b5}.us-track-source.source-appearance{--track-color:color-mix(in srgb,#74c184 60%,#e7e7e7)}.us-track-source.source-relation{--track-color:#969696}.us-track-source>span{padding-top:4px;font-size:10px;line-height:18px;color:#b5b5b5}.us-track-lanes{padding:2px 0;background:repeating-linear-gradient(to right,transparent 0,transparent calc(25% - 1px),#444 calc(25% - 1px),#444 25%)}.us-track-lane{position:relative;height:20px}.us-track-lane:before{content:"";position:absolute;top:10px;left:0;right:0;height:1px;background:#444}.us-track-lane>button{position:absolute;top:5px;height:10px;min-height:10px;min-width:5px;padding:0;border:0;border-radius:3px;background:var(--track-color);box-shadow:none}.us-track-lane>button.point{border-radius:50%;width:8px!important}.us-track-lane>button.range{opacity:.65}.us-track-lane>button:hover,.us-track-lane>button.selected{opacity:1;box-shadow:0 0 0 2px #282828,0 0 0 3px var(--track-color)}.us-track-selection{margin:14px 0 0 60px;padding:10px 0 0;border-top:1px solid #444;font-size:12px;overflow-wrap:anywhere}.us-track-selection strong{font-weight:500}.us-track-selection p{color:#b5b5b5;margin:6px 0;line-height:1.65}.us-track-selection>span{color:#74c184}.us-thinking{margin:0 0 14px;color:#b5b5b5}.us-thinking>summary{width:max-content;display:flex;align-items:center;gap:5px;padding:3px 0;font-size:12px;-webkit-user-select:none;user-select:none;list-style:none;cursor:pointer}.us-thinking>summary::-webkit-details-marker{display:none}.us-thinking .us-icon{width:13px;height:13px}.us-thinking>summary>.us-icon:last-child{transition:transform .16s ease}.us-thinking[open]>summary>.us-icon:last-child{transform:rotate(180deg)}.us-thinking-content{display:grid;gap:7px;margin:8px 0 4px;padding:10px 12px;border-left:1px solid #444}.us-thinking-flow{display:grid;gap:7px;max-height:148px;overflow-y:auto;overscroll-behavior:contain;padding:18px 0 5px;scrollbar-width:none;-webkit-mask-image:linear-gradient(to bottom,transparent 0,#000 18px,#000 100%);mask-image:linear-gradient(to bottom,transparent 0,#000 18px,#000 100%)}.us-thinking-flow::-webkit-scrollbar{display:none}.us-activity{display:grid;grid-template-columns:20px minmax(0,1fr);gap:7px;align-items:start;color:#b5b5b5}.us-activity>.us-icon{margin-top:4px;color:#74c184}.us-activity p{margin:1px 0 0;font-size:12px;line-height:1.65}.us-activity-initial{margin-bottom:1px;padding:10px 12px;border-left:2px solid #74c184;border-radius:0 8px 8px 0;background:#74c18408;color:#e7e7e7}.us-messages{font-size:14px;line-height:1.85}.us-messages h3{font-size:17px;font-weight:600;margin:24px 0 12px}.us-source-card{position:relative;display:block;width:100%;text-align:left;margin:20px 0 22px;padding:14px 40px 14px 17px;border:1px solid color-mix(in srgb,#74c184 28%,#444);border-radius:11px;background:color-mix(in srgb,#74c184 5%,#303030);transition:border-color .16s ease,background-color .16s ease,transform .16s ease}.us-source-card>span{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px}.us-source-card small{font-size:10px;color:#b5b5b5}.us-source-card em{display:flex;align-items:center;gap:5px;font-size:10px;font-style:normal;color:#74c184}.us-source-card em .us-icon{width:12px;height:12px}.us-source-card strong{font-size:13px;line-height:1.7;font-weight:500}.us-source-card>.us-icon{position:absolute;right:12px;top:calc(50% - 8px);width:16px;height:16px;color:#b5b5b5}.us-source-card:hover{border-color:#74c184;background:color-mix(in srgb,#74c184 10%,#303030);transform:translateY(-1px)}.us-chat-related>span{font-size:11px;color:#969696}.us-chat-related .us-chat-wiki-card{position:relative;justify-content:space-between;margin-top:8px;border-color:color-mix(in srgb,#74c184 28%,#444);background:color-mix(in srgb,#74c184 5%,#303030);border-radius:11px;padding:14px 17px}.us-chat-related .us-chat-wiki-card:before{content:"";position:absolute;inset:0 auto 0 0;width:3px;border-radius:11px 0 0 11px;background:#74c184}.us-chat-related .us-chat-wiki-card small:first-child{display:flex;gap:5px;align-items:center;margin:0 0 5px;color:#74c184;font-size:10px}.us-chat-related .us-chat-wiki-card small .us-icon{width:12px;height:12px}.us-composer{display:block;padding:12px 14px}.us-composer textarea{display:block;width:100%;resize:none;border:0;background:transparent;color:#e7e7e7;font:inherit;line-height:1.6;outline:none}.us-composer textarea::placeholder{color:#969696}.us-composer>div{display:flex;align-items:center;justify-content:space-between;margin-top:8px}.us-composer small{font-size:10px}.us-composer button{display:grid;place-items:center;border:0;border-radius:7px;background:#367b46;color:#fff;width:32px;height:32px;opacity:.5;cursor:default}.understory-intro{position:sticky;top:calc(100svh - var(--us-intro-height,1800px));z-index:0}.understory-intro[data-covered]>*{visibility:hidden}.us-product-name img{width:58px;height:58px}.us-product-name h1{font-weight:650}.us-product-name h1>span{font-weight:250}.us-hero-actions{display:flex;align-items:center;gap:20px;margin-top:30px;font:500 14px var(--font-sans)}.us-hero-actions button,.us-hero-actions a{display:inline-flex;align-items:center;gap:9px;white-space:nowrap}.us-github-icon,.us-github-icon svg{display:block;width:20px;height:20px;flex-shrink:0}.us-hero-actions .us-repository{background:#74c184;color:#102217;padding:12px 17px;border-radius:8px;box-shadow:0 3px 16px #74c18414;transition:background .2s,color .2s,box-shadow .2s,transform .2s}.us-hero-actions .us-repository:is(:hover,:focus-visible){background:#91d5a0;color:#102217;box-shadow:0 4px 18px #74c18430;transform:translateY(-1px)}.us-hero-actions .us-repository:active{background:#68b879;color:#102217;box-shadow:0 2px 8px #74c18420;transform:translateY(0)}.us-hero-actions a{color:#b4cab9;text-decoration:none}.us-hero-actions a:hover{color:#d6ebdb}.us-reader{padding-bottom:0}.us-scenes{padding:10px 16px 12px}.us-window[data-view=reader] .us-topbar{background:linear-gradient(#242e26a8,#242e2630,transparent)}.us-paper{height:calc(100% + 86px);margin-top:-74px;margin-bottom:-12px;background:transparent;border:0;mask-image:linear-gradient(transparent,#000 74px 100%);-webkit-mask-image:linear-gradient(transparent,#000 74px,#000 100%)}.us-reading-paper{min-height:calc(100% - 74px);margin-top:74px;padding:32px 0 64px;background:#252525;border:1px solid var(--us-line);border-bottom:0;border-radius:12px 12px 0 0}.us-chapter-heading{padding:0 18px 36px}.us-window *{scrollbar-width:none}.us-window *::-webkit-scrollbar{display:none}.us-scroll{overscroll-behavior:auto}.us-module-nav :is(button,.nav-link){position:relative;z-index:1;transition:color .14s ease}.us-module-nav :is(button,.nav-link)[aria-selected=true]{background:transparent;box-shadow:none}.us-tab-indicator{position:absolute;top:4px;left:4px;width:80px;height:30px;border-radius:8px;background:#367b46;box-shadow:0 1px 3px #0003;transform:translate(calc(var(--tab-index,0)*84px));transition:transform .24s cubic-bezier(.16,1,.3,1)}.us-video-arrow{position:absolute;top:50%;transform:translateY(-50%);width:42px;height:42px;display:grid;place-items:center;background:#101512b8;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:#fff;border:1px solid #ffffff24;border-radius:50%;opacity:0;transition:opacity .2s,background .2s;z-index:3}.us-video-prev{left:16px}.us-video-next{right:16px}.us-video-stage:hover .us-video-arrow,.us-video-stage:focus-within .us-video-arrow{opacity:1}.us-video-arrow:hover{background:#2b4832e8}.us-video-replay{position:absolute;inset:0;margin:auto;width:max-content;height:54px;display:flex;align-items:center;gap:10px;padding:0 24px;border-radius:28px;border:1px solid #ffffff30;background:#101512bd;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);color:#dceee0;font:500 15px var(--font-sans);z-index:3}.us-video-loading,.us-video-start{z-index:4}.us-video-stage [hidden]{display:none}.understory-shell .reading-page{padding:70px 0 110px;margin-top:0}.understory-shell .reading-media .window-presentation{box-sizing:border-box;padding:16px;background:#274337 url(/articles/understory/window-background.webp) center/cover;border-radius:8px!important}.understory-shell .window-image{position:absolute;inset:16px;overflow:hidden;border-radius:3px;box-shadow:0 9px 20px #0007,0 1px 4px #0005}.understory-shell .window-image>img[data-responsive]{position:relative;display:block;left:calc(-1 * var(--crop-x));top:calc(-1 * var(--crop-y));width:calc(100% + 2 * var(--crop-x));max-width:none;height:calc(100% + 2 * var(--crop-y));object-fit:fill}.understory-shell .window-image .image-placeholder{inset:0}@media(max-width:1100px){.us-hero-actions{justify-content:center}}@media(max-width:560px){.us-product-name img{width:48px;height:48px}.us-hero-actions{font-size:13px;gap:16px}.understory-shell .reading-page{padding-top:45px}.understory-shell .reading-media .window-presentation{padding:10px}.understory-shell .window-image{inset:10px}}@media(hover:none){.us-video-arrow{opacity:1}}@media(prefers-reduced-motion:reduce){.us-tab-indicator{transition:none}.understory-intro{position:relative;top:auto}}html[data-understory-motion=animate] .understory-intro [data-us-enter]{opacity:0;visibility:hidden;transform:translateY(24px);transition:opacity .65s cubic-bezier(.16,1,.3,1),transform .75s cubic-bezier(.16,1,.3,1),visibility 0s .75s}html[data-understory-motion=animate] .understory-intro [data-us-enter][data-entered],html[data-understory-motion=animate] .understory-intro [data-us-enter]:focus-within{opacity:1;visibility:visible;transform:none;transition-delay:var(--enter-delay,0ms)}.understory-shell .us-feature-section{padding-bottom:clamp(180px,24vh,300px)}html[data-product=understory] .reading-outline,html[data-product=understory] .outline-toggle{transition:opacity .25s ease,visibility .25s}@media(prefers-reduced-motion:reduce){html[data-understory-motion] .understory-intro [data-us-enter]{opacity:1;visibility:visible;transform:none;transition:none}html[data-product=understory] .reading-outline,html[data-product=understory] .outline-toggle{transition:none}}@media(min-width:1400px){.understory-shell .reading-outline,.understory-shell:not([data-blog-visible]) .reading-outline,html[data-product=understory] .understory-shell:not([data-blog-visible]) .reading-outline{opacity:1;visibility:visible;pointer-events:auto;transition:none;top:calc(150px + var(--outline-enter-offset,100vh));background:transparent;overflow:visible;clip-path:none}.understory-shell .reading-outline .outline-content{max-height:none!important;height:auto;overflow:visible;transition:none}}html[data-product=understory] .outline-toggle{transition:none}html[data-product=understory]:not(:has(.understory-shell[data-blog-visible])) .outline-toggle{transition:none}.us-scroll-hint{position:fixed;z-index:29;bottom:max(20px,env(safe-area-inset-bottom));left:50%;transform:translate(-50%);display:flex;align-items:center;gap:8px;padding:9px 16px;border:1px solid #c1cec440;background:#101512ee;color:#d9e6dd;font:13px var(--font-sans);border-radius:24px;animation:us-hint-in .6s ease both}.us-scroll-hint svg{width:20px;height:20px}@keyframes us-hint-in{0%{opacity:0;transform:translate(-50%,8px)}to{opacity:1;transform:translate(-50%)}}@media(prefers-reduced-motion:reduce){.us-scroll-hint{animation:none}}.us-feature-copy .us-video-replay{position:static;inset:auto;margin:0;width:auto;height:auto;padding:4px 0;gap:8px;border:0;border-radius:0;background:transparent;-webkit-backdrop-filter:none;backdrop-filter:none;color:#99b0a0;font:500 13px var(--font-sans)}.us-feature-copy .us-video-replay .us-icon{width:17px;height:17px}.us-feature-copy .us-video-replay:hover{color:#cef0d6}.us-feature-copy .us-video-replay[hidden]{display:none}@media(min-width:1400px){.understory-shell .reading-outline .outline-content{max-height:max(120px,calc(100svh - 182px - var(--outline-enter-offset,0px)))!important;overflow-y:auto;overflow-x:hidden;overscroll-behavior:contain;scrollbar-width:none;padding:64px 0 min(35vh,240px);transform:none}}@media(min-width:1400px){.understory-shell .reading-outline .outline-content{mask-image:linear-gradient(to bottom,transparent 0%,#0009 28px,#000 64px,#000 calc(100% - 64px),#0009 calc(100% - 28px),transparent 100%);-webkit-mask-image:linear-gradient(to bottom,transparent 0%,#0009 28px,#000 64px,#000 calc(100% - 64px),#0009 calc(100% - 28px),transparent 100%)}}.understory-shell .reading-media.media-side:has(img[src="/articles/understory/app-icon.svg"]){float:right;clear:right;width:min(240px,40%);margin:5px 0 18px 24px}.understory-logo-copy{display:flow-root}.understory-shell .reading-media.media-side:has(img[src="/articles/understory/app-icon.svg"]) .image-open{height:auto;aspect-ratio:1;border-radius:20%}.understory-shell .reading-media.media-side:has(img[src="/articles/understory/app-icon.svg"])>.article-figure{display:flex;flex-direction:column;gap:8px;width:100%;margin:0}.understory-shell .reading-media.media-side:has(img[src="/articles/understory/app-icon.svg"]) figcaption{width:100%;margin:0}:root[data-product=understory]{--paper:#fff;--ink:#171b18;--muted:#737373;--caption:#737373;--accent:#287b46;--us-dark-paper:#101512;--us-dark-ink:#e6ece7;--us-dark-muted:#aabbaf;--us-dark-accent:#74c184;--menu-paper:#fffffff5;color-scheme:light;background:var(--paper)}:root[data-product=understory] body{background:var(--paper);color:var(--ink)}:root[data-product=understory] .understory-shell{padding-bottom:0}.understory-intro{isolation:isolate;--paper:var(--us-dark-paper);--ink:var(--us-dark-ink);--muted:var(--us-dark-muted);--caption:#92a198;--accent:var(--us-dark-accent);color:var(--ink);color-scheme:dark}.understory-intro:before{content:"";position:absolute;z-index:-1;inset-block:0;left:50%;width:100vw;transform:translate(-50%);background:radial-gradient(ellipse 850px 570px at 78% 370px,#74c18413,transparent 78%),radial-gradient(ellipse 650px 500px at 10% 1050px,#74c1840b,transparent 80%),var(--paper);pointer-events:none}.us-reading-surface{position:relative;z-index:2;isolation:isolate;--paper:#fff;--ink:#171b18;--muted:#737373;--caption:#737373;--accent:#287b46;background:var(--paper);color:var(--ink);color-scheme:light;box-shadow:0 0 0 100vmax var(--paper);clip-path:inset(0 -100vmax)}.understory-shell .article-footer{width:min(var(--reading-width),100%);margin:0 auto;color:#737373}:root[data-product=understory] ::selection{background:#74c18440;color:#173d22}.understory-intro ::selection{background:#74c18466;color:var(--ink)}:root[data-product=understory]:not([data-us-theme=light]) :is(.article-masthead,.reading-outline,.outline-toggle){--paper:var(--us-dark-paper);--ink:var(--us-dark-ink);--muted:var(--us-dark-muted);--accent:var(--us-dark-accent);--menu-paper:#141c17f5;--mascot-filter:invert(1);color:var(--ink);color-scheme:dark}:root[data-product=understory] :is(.article-masthead,.reading-outline,.outline-toggle) .nav-frame rect{stroke:currentColor}:root[data-product=understory] .article-masthead{color:var(--ink);border-bottom:1px solid color-mix(in srgb,var(--ink) 8%,transparent)}:root[data-product=understory] .article-masthead .mascot svg{filter:var(--mascot-filter,none)}:root[data-product=understory] .article-masthead nav small{color:var(--muted)}:root[data-product=understory] .article-masthead nav :is(button,.nav-link):is([data-nav-active],:active) small{color:var(--ink)}:root[data-product=understory] .article-masthead :is(nav .nav-link,.nav-highlight,.outline-toggle):before{background:color-mix(in srgb,var(--ink) 5%,transparent)}:root[data-product=understory] .outline-toggle{color:var(--ink)}:root[data-product=understory] .reading-outline{color:var(--ink);background:var(--menu-paper)}:root[data-product=understory] .reading-outline :is(.outline-label,li ol a){color:var(--muted)}:root[data-product=understory] .reading-outline .outline-content>ol>li>a{color:var(--ink)}:root[data-product=understory] .reading-outline .outline-content a:is(:hover,[aria-current]){color:var(--accent)}.understory-shell .brand-outline .period{fill:var(--accent)}.understory-shell>.masthead-slot:before{content:"";position:absolute;inset:0 0 0 50%;width:100vw;transform:translate(-50%);background:var(--us-dark-paper);z-index:-1;pointer-events:none}:root[data-product=understory] .scroll-masthead:before{background:linear-gradient(color-mix(in srgb,var(--paper) 98%,transparent) 0%,color-mix(in srgb,var(--paper) 93%,transparent) 50%,color-mix(in srgb,var(--paper) 65%,transparent) 74%,transparent 100%)}@media(min-width:1400px){:root[data-product=understory] .reading-outline{background:transparent}.understory-shell .article-footer{width:min(var(--reading-width),calc(100% - 190px));margin-left:auto;margin-right:120px}}