/* Owned site chrome. Generated into both apps and their static subpages.
   A navigation action has the same type and geometry whether it is a link,
   button or disclosure. Activity stages and editor controls are not selected. */
:root{
 --chrome-width:1280px;--chrome-gutter:40px;--chrome-height:4.5rem;
 --chrome-brand-size:var(--text-title-small,1.25rem);--chrome-nav-size:var(--text-detail,.875rem);
 --chrome-hit:2.75rem;--chrome-mark:40px;--chrome-gap:24px;--chrome-radius:12px;
}
:root body header[data-site-header]{position:sticky;top:0;z-index:40;display:block;width:100%;max-width:none;margin:0;padding:0;border:0;border-bottom:1px solid var(--site-line);background:var(--site-glass);color:var(--site-ink);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
:root body header[data-site-header]::after{display:none}
:root body header[data-site-header] [data-site-header-inner]{box-sizing:border-box;display:flex;align-items:center;flex-wrap:nowrap;gap:var(--chrome-gap);width:100%;max-width:var(--chrome-width);min-height:var(--chrome-height);margin:0 auto;padding:12px var(--chrome-gutter)}
:root body header[data-site-header] [data-site-brand]{display:inline-flex;align-items:center;flex:0 0 auto;gap:10px;min-width:0;min-height:var(--chrome-hit);margin:0;padding:0;border:0;background:none;color:var(--site-ink);text-decoration:none;white-space:nowrap}
:root body header[data-site-header] [data-site-brand-mark]{display:block;flex:0 0 var(--chrome-mark);width:var(--chrome-mark);height:var(--chrome-mark);margin:0;padding:0;border:0;border-radius:0;background-color:transparent;background-size:contain;background-repeat:no-repeat;background-position:center;box-shadow:none;object-fit:contain}
:root body header[data-site-header] [data-site-brand-mark] img{display:block;width:100%;height:100%;object-fit:contain}
:root body header[data-site-header] [data-site-brand] [data-site-brand-text]{display:flex;align-items:baseline;flex-wrap:nowrap;gap:0;margin:0;font-family:var(--font-ui);font-size:var(--chrome-brand-size);font-weight:600;line-height:1.35;letter-spacing:0;white-space:nowrap;text-wrap:nowrap;color:var(--site-ink)}
:root body header[data-site-header] [data-site-brand] [data-site-brand-text]>[data-site-separator]{padding-inline:.25em}
:root body header[data-site-header] [data-site-brand] [data-site-brand-text]>[data-site-separator]:empty{display:none}
:root body header[data-site-header] [data-site-brand] [data-site-brand-text]>span{display:inline;margin:0;font:inherit;line-height:inherit;letter-spacing:inherit;color:inherit}
:root body header[data-site-header] [data-site-nav]{display:flex;align-items:center;flex-wrap:nowrap;flex:none;gap:16px;width:auto;min-width:0;margin:0 0 0 auto;padding:0;border:0;background:none;white-space:nowrap}
:root body header[data-site-header] [data-site-nav]>:is(a,button),:root body header[data-site-header] [data-site-nav]>details>summary{box-sizing:border-box;display:inline-flex;align-items:center;justify-content:center;gap:6px;min-width:var(--chrome-hit);min-height:var(--chrome-hit);height:auto;width:auto;margin:0;padding:8px 4px;border:0;border-radius:var(--chrome-radius);background:transparent;color:var(--site-ink);font-family:var(--font-ui);font-size:var(--chrome-nav-size);font-weight:500;line-height:1.4;letter-spacing:0;text-decoration:none;text-align:center;box-shadow:none;cursor:pointer;transform:none;white-space:nowrap}
:root body header[data-site-header] [data-site-nav]>details{flex:none;margin:0;padding:0;border:0;background:transparent}
:root body header[data-site-header] [data-site-nav]>details>summary{list-style:none}
:root body header[data-site-header] [data-site-nav]>details>summary::-webkit-details-marker{display:none}
:root body header[data-site-header] [data-site-nav]>details[data-site-reading]{position:relative;flex-basis:auto;font-size:var(--text-body,1rem)}
:root body header[data-site-header] [data-site-reading][hidden]{display:none!important}
:root body header[data-site-header] [data-site-reading]:not([open])>fieldset{display:none}
:root body header[data-site-header] [data-site-reading]>fieldset{position:absolute;right:0;top:calc(100% + 8px);z-index:60;display:grid;gap:12px;width:320px;max-width:calc(100vw - 32px);margin:0;padding:20px;border:1px solid var(--site-line);border-radius:18px;background:var(--site-panel);color:var(--site-ink);box-shadow:0 12px 40px #0002;white-space:normal}
:root body header[data-site-header] [data-site-reading] label{display:flex;align-items:center;gap:8px;min-height:44px;margin:0;font-size:var(--text-body,1rem);font-weight:400;line-height:1.5}
:root body header[data-site-header] [data-site-reading] p{margin:0;font-size:var(--text-caption,.8125rem);line-height:1.6;white-space:normal}
:root body header[data-site-header] [data-site-utilities]{display:flex;flex:none;align-items:center;gap:8px;margin:0;padding:0}
:root body header[data-site-header] [data-site-utilities]>button,:root body header[data-site-header] [data-site-utility],:root body header[data-site-header] [data-site-nav]>[data-site-utility]{box-sizing:border-box;display:inline-flex;align-items:center;justify-content:center;gap:8px;min-width:var(--chrome-hit);min-height:var(--chrome-hit);height:auto;margin:0;padding:8px 12px;border:1px solid transparent;border-radius:var(--chrome-radius);background:var(--site-soft);color:var(--site-ink);font-family:var(--font-ui);font-size:var(--chrome-nav-size);font-weight:500;line-height:1.4;letter-spacing:0;box-shadow:none;transform:none;white-space:nowrap}
:root body header[data-site-header] [data-site-utilities]>button:has(>svg:only-child),:root body header[data-site-header] [data-site-nav]>[data-site-utility]:has(>svg:only-child){width:var(--chrome-hit);padding:8px}
:root body header[data-site-header] [data-site-utilities]>button[aria-pressed=true]{background:var(--site-selected);color:var(--site-on-selected);border-color:var(--site-control-line)}
/* Apply foreground and surface together when a saved theme is restored.
   Legacy background-only button transitions briefly produced light text on
   the previous light surface during dark-mode initialization. */
:root body header[data-site-header] :is([data-site-nav]>a,[data-site-nav]>button,[data-site-nav]>details>summary,[data-site-utilities]>button,[data-site-utility]){transition:none}
:root body header[data-site-header] :is([data-site-nav]>a,[data-site-nav]>button,[data-site-nav]>details>summary,[data-site-utilities]>button,[data-site-utility]):focus-visible{outline:2px solid var(--site-focus);outline-offset:3px}
:root body header[data-site-header] [data-site-nav]>details>div :is(a,button){display:flex;align-items:center;min-height:var(--chrome-hit);padding:10px 12px;border:0;border-radius:var(--chrome-radius);background:transparent;color:var(--site-ink);font-family:var(--font-ui);font-size:var(--text-body,1rem);font-weight:400;line-height:1.5;letter-spacing:0;text-align:left;text-decoration:none;box-shadow:none}
:root body header[data-site-header] .header-count{display:inline-grid;place-items:center;min-width:20px;height:20px;margin:0;padding:0 4px;border-radius:999px;background:var(--site-selected);color:var(--site-on-selected);font-size:var(--text-caption,.8125rem);font-variant-numeric:tabular-nums}
:root body [data-site-footer]{box-sizing:border-box;width:100%;max-width:var(--chrome-width);margin-inline:auto;padding:32px var(--chrome-gutter) 40px;border-top:1px solid var(--site-line);color:var(--site-muted);font-family:var(--font-ui);font-size:var(--text-caption,.8125rem);font-weight:400;line-height:1.6}
:root body [data-site-footer] :is(a,button,p,nav){font-family:inherit;font-size:inherit;font-weight:400;line-height:1.6;letter-spacing:0;color:inherit}
:root body [data-site-footer] :is(nav,.footer-links){display:flex;align-items:center;flex-wrap:wrap;gap:4px 24px;margin:0;padding:0;font-size:var(--text-caption,.8125rem);color:var(--site-muted)}
:root body [data-site-footer] :is(nav,.footer-links)>:is(a,button){display:inline-flex;align-items:center;min-height:var(--chrome-hit);margin:0;padding:8px 0;border:0;border-radius:0;background:none;color:var(--site-muted);font-size:var(--text-caption,.8125rem);font-weight:400;line-height:1.6;text-align:left;text-decoration:none;box-shadow:none}
@media(hover:hover){
 :root body header[data-site-header] :is([data-site-nav]>a,[data-site-nav]>button,[data-site-nav]>details>summary):hover{background:var(--site-soft)}
 :root body header[data-site-header] [data-site-nav]>details>div :is(a,button):hover{background:var(--site-soft)}
 :root body [data-site-footer] :is(a,button):hover{text-decoration:underline;text-underline-offset:4px}
}
@media(max-width:1100px){:root{--chrome-gutter:28px;--chrome-gap:16px}:root body header[data-site-header] [data-site-nav]{gap:10px}}
@media(max-width:1099px){:root body header[data-site-header] [data-site-finder]{display:none}}
@media(max-width:1000px){:root body header[data-site-header=training] [data-site-nav]>.main-site-entry{display:none}}
@media(max-width:1279px){:root:is([data-large-text=true],[data-font=large]) body header[data-site-header] [data-site-finder]{display:none}}
@media(max-width:1100px){:root:is([data-large-text=true],[data-font=large]) body header[data-site-header=training] [data-site-nav]>:is(.main-site-entry,.learn-header-entry){display:none}}
@media(max-width:900px){:root:is([data-large-text=true],[data-font=large]) body header[data-site-header=training] [data-site-nav]>.lesson-header-entry{display:none}:root:is([data-large-text=true],[data-font=large]) body header[data-site-header=life] [data-site-nav]>a[href^="https://ai666888.com/training/"]{display:none}}
@media(max-width:700px){
 :root{--chrome-gutter:16px;--chrome-gap:12px;--chrome-height:4.5rem}
 :root body header[data-site-header] [data-site-header-inner]{padding-block:10px}
 :root body header[data-site-header] [data-site-brand] [data-site-brand-text]{display:grid;align-items:start;gap:2px;line-height:1.25}
 :root body header[data-site-header] [data-site-brand] [data-site-brand-text]>[data-site-owner]{font-size:var(--text-detail,.875rem);font-weight:500;line-height:1.25;color:var(--site-muted)}
 :root body header[data-site-header] [data-site-brand] [data-site-brand-text]>[data-site-product]{font-size:var(--text-subhead,1.125rem);font-weight:600;line-height:1.25}
 :root body header[data-site-header] [data-site-brand] [data-site-brand-text]>[data-site-separator]{display:none}
 :root body header[data-site-header] [data-site-nav]{gap:6px}
 :root body header[data-site-header] [data-site-nav]>details>summary{padding:8px 12px;background:var(--site-soft)}
 :root body header[data-site-header] [data-site-utilities]{gap:6px}
 :root body header[data-site-header] [data-site-utilities]>button{padding-inline:8px}
 :root body header[data-site-header][data-static-header] [data-site-nav]>a{display:none}
 :root body [data-site-footer]{padding-bottom:max(32px,env(safe-area-inset-bottom))}
}
@media(max-width:360px){:root{--chrome-mark:36px;--chrome-gap:8px}:root body header[data-site-header] [data-site-brand]{gap:8px}:root body header[data-site-header] [data-site-utilities]{gap:4px}}
@media(max-width:360px){:root body header[data-site-header=life]:not([data-static-header]) [data-site-nav]{display:none}}
@media print{:root body header[data-site-header],:root body [data-site-footer]{display:none}}