/* A separate, control-free viewport. Escape/browser Back return to the OS. */
:root.zero-immersive-active{background:var(--os-bg)!important;overflow:hidden!important;}
body.zero-immersive-active{overflow:hidden!important;overscroll-behavior:none;}
html.zero-immersive-active :is(.site-enclosure,main){visibility:hidden!important;}
html.zero-immersive-active[data-theme] .site-enclosure{visibility:hidden!important;}
.zero-immersive[hidden]{display:none!important;}
.zero-immersive{
 position:fixed!important;inset:0;z-index:2147483647!important;width:100%;height:100dvh;
 background:var(--os-bg);color:var(--os-text);overflow:hidden;
 font-family:var(--immersive-font,Arial,Helvetica,sans-serif);outline:none;
}
.zero-immersive:fullscreen{width:100%;height:100%;}
.immersive-picture{position:absolute;left:0;top:0;width:100%;height:100%;object-fit:contain;pointer-events:none;}
.immersive-passage{
 position:absolute;left:50%;top:max(16px,env(safe-area-inset-top));
 transform:translateX(-50%);width:min(88%,1080px);margin:0;
 font:var(--immersive-weight,400) clamp(18px,2vw,25px)/var(--immersive-leading,1.45) var(--immersive-font,Arial,Helvetica,sans-serif);
 font-style:var(--immersive-style,normal);font-variant:var(--immersive-variant,normal);
 letter-spacing:var(--immersive-tracking,normal);text-transform:var(--immersive-case,none);
 text-align:center;text-wrap:pretty;color:var(--os-text);
 padding:.3em .55em;pointer-events:none;
}
.immersive-passage:empty{display:none;}
.immersive-crawl{position:absolute;inset:0;overflow:hidden;perspective:600px;perspective-origin:50% 18%;}
.crawl-plane{
 position:absolute;bottom:0;left:50%;width:min(85vw,1050px);height:180vh;
 transform:translateX(-50%) rotateX(54deg);transform-origin:50% 100%;
 transform-style:preserve-3d;pointer-events:none;
}
.crawl-line{
 position:absolute;left:0;top:0;width:100%;margin:0;text-align:justify;
 font:var(--immersive-weight,400) clamp(24px,3vw,44px)/var(--immersive-leading,1.45) var(--immersive-font,Arial,Helvetica,sans-serif);
 font-style:var(--immersive-style,normal);font-variant:var(--immersive-variant,normal);
 letter-spacing:var(--immersive-tracking,normal);text-transform:var(--immersive-case,none);
 transform:translate3d(0,var(--crawl-y,0px),0);will-change:transform;
}
.zero-immersive[data-mode=crawl] .immersive-picture,
.zero-immersive[data-mode=crawl] .immersive-passage,
.zero-immersive[data-mode=visual] .immersive-crawl{display:none;}
@media(max-width:600px){
 .immersive-passage{width:92%;font-size:18px;}
 .immersive-crawl{perspective:430px;}
 .crawl-plane{width:90vw;transform:translateX(-50%) rotateX(48deg);}
 .crawl-line{font-size:clamp(24px,6vw,32px);}
}
@media(prefers-reduced-motion:reduce){
 .immersive-crawl{perspective:none;}
 .crawl-plane{inset:0;transform:none;width:100%;height:100%;}
 .crawl-line{display:none;}
 .crawl-line[data-current=true]{display:block;position:absolute;top:50%;left:6%;width:88%;transform:translateY(-50%)!important;text-align:left;}
}