/* AythurOS Wiki structure. Colours and the font stack come from the generated brand.css
 * (see `brand:` in wiki.yaml); nothing below hard-codes a colour. Text pairs are >= 7:1. */
:root{--mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;--max:84rem;--measure:44rem;--radius:.75rem}
@media (prefers-contrast:more){
  :root{--muted:var(--text);--border:currentColor}
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-padding-top:5rem;background:var(--bg);accent-color:var(--accent)}
::selection{background:color-mix(in srgb,var(--accent) 30%,transparent)}
body{margin:0;background:var(--bg);color:var(--text);font:1.125rem/1.7 var(--font);
  font-kerning:normal;text-rendering:optimizeLegibility;overflow-wrap:break-word}

/* Focus: always visible, never colour-only */
:focus-visible{outline:3px solid var(--focus);outline-offset:3px;border-radius:.25rem}
.skip{position:absolute;inset-inline-start:1rem;top:-5rem;z-index:20;background:var(--accent-strong);color:var(--on-accent);
  padding:.75rem 1.25rem;border-radius:var(--radius);font-weight:650;text-decoration:none}
.skip:focus{top:1rem}

/* Header */
.site-header{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 88%,transparent);-webkit-backdrop-filter:saturate(1.4) blur(10px);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--border)}
.bar{max-width:var(--max);margin:auto;min-height:4rem;display:flex;align-items:center;gap:1rem;padding:.5rem 1.25rem}
.brand{display:inline-flex;align-items:center;gap:.205em;font-weight:750;font-size:1.25rem;letter-spacing:-.01em;color:var(--text);text-decoration:none;white-space:nowrap}
.brand-label{font-weight:500;color:var(--accent-strong)}
.brand-logo{display:block;height:1.75rem;width:auto}
.brand-mark{flex:none;width:1.65rem;height:2.1rem;margin-inline-end:.25rem;background-color:var(--accent);-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat;-webkit-mask-position:center;mask-position:center;-webkit-mask-size:contain;mask-size:contain}
@media (forced-colors:active){.brand-mark{background-color:CanvasText}}
.logo-dark{display:none}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .logo-light{display:none}:root:not([data-theme="light"]) .logo-dark{display:block}}
:root[data-theme="dark"] .logo-light{display:none}
:root[data-theme="dark"] .logo-dark{display:block}
.theme{display:inline-flex;border:1px solid var(--control);border-radius:999px;padding:.2rem;background:var(--card)}
.theme[hidden]{display:none}
.theme button{font:inherit;font-size:.95rem;min-height:2.5rem;min-width:2.75rem;padding:0 .9rem;border:0;border-radius:999px;
  background:transparent;color:var(--text);cursor:pointer}
.theme button:hover{background:color-mix(in srgb,var(--text) 10%,transparent)}
.theme button[aria-pressed="true"]{background:var(--accent-strong);color:var(--on-accent);font-weight:650}

/* Layout */
.layout{max-width:var(--max);margin:auto;display:grid;grid-template-columns:16rem minmax(0,1fr);gap:3.5rem;padding:2rem 1.25rem 4rem}
.sidebar summary{display:none}
.sidebar ul{list-style:none;margin:0;padding:0}
.nav-section{margin:0 0 1.25rem}
.nav-section summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;min-height:2.5rem;border-radius:.4rem}
.nav-section summary::-webkit-details-marker{display:none}
.nav-section summary::after{content:"";flex:none;border:.3rem solid transparent;border-top-color:var(--muted);border-bottom:0;transition:transform .15s}
.nav-section:not([open]) summary::after{transform:rotate(-90deg)}
:root[dir="rtl"] .nav-section:not([open]) summary::after{transform:rotate(90deg)}
.nav-section summary:hover{background:color-mix(in srgb,var(--accent) 8%,transparent)}
.nav-section{padding-top:.35rem}
.nav-section h2{font-size:.8rem;text-transform:uppercase;letter-spacing:.09em;color:var(--muted);margin:0;padding:0;border:0;font-weight:700}
.nav-section summary{padding-inline-end:.5rem}
.sidebar a{display:block;padding:.45rem .75rem;margin-inline-start:-.75rem;border-inline-start:3px solid transparent;border-radius:.4rem;color:var(--text);text-decoration:none;font-size:1rem}
.sidebar a:hover{background:color-mix(in srgb,var(--accent) 8%,transparent);text-decoration:underline}
.sidebar a[aria-current="page"]{background:color-mix(in srgb,var(--accent) 14%,transparent);font-weight:700;border-inline-start-color:var(--accent)}

/* Content */
main{max-width:var(--measure);min-width:0}
.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:.75rem;font-weight:740;color:var(--accent-strong);margin:0 0 .6rem}
h1,h2,h3,h4{line-height:1.2;letter-spacing:-.025em;margin:2.2em 0 .6em;font-weight:680;text-wrap:balance}
h1{font-size:clamp(2.1rem,1.5rem + 2.4vw,3rem);letter-spacing:-.04em;font-weight:700;margin:0 0 .45em}
h2{font-size:1.65rem;padding-top:.6em;border-top:1px solid var(--border)}
h3{font-size:1.3rem}
h4{font-size:1.125rem}
p,ul,ol,pre,table,blockquote{margin:0 0 1.2em}
li{margin:.3em 0}
.lede{font-size:1.3rem;line-height:1.55;color:var(--muted);margin-bottom:1.2rem}
.badges{display:flex;gap:.5rem;flex-wrap:wrap;margin:0 0 2rem}
.badge{border:1px solid color-mix(in srgb,var(--accent) 35%,var(--border));background:color-mix(in srgb,var(--accent) 10%,var(--card));color:var(--text);border-radius:999px;padding:.15rem .8rem;font-size:.875rem;font-weight:550}
main a{color:var(--link);text-underline-offset:.2em;text-decoration-thickness:.08em}
main a:hover{color:var(--link-hover);text-decoration-thickness:.15em}
code{font:.9em var(--mono);background:var(--code-bg);padding:.1em .35em;border-radius:.3rem}
pre{overflow:auto;padding:1rem 1.25rem;border-radius:var(--radius);background:var(--code-bg);border:1px solid var(--border);line-height:1.55;font-size:1rem}
.code{position:relative;margin:0 0 1.2em}
.code pre{margin:0;padding-top:2.4rem}
pre code{background:none;padding:0;font-size:inherit}
blockquote{margin-inline-start:0;padding:.25rem 1.25rem;border-inline-start:4px solid var(--accent);background:var(--card);border-start-end-radius:var(--radius);border-end-end-radius:var(--radius)}
table{border-collapse:collapse;display:block;overflow-x:auto;max-width:100%}
th,td{border:1px solid var(--border);padding:.6rem .9rem;text-align:start;vertical-align:top}
th{background:var(--card)}
hr{border:0;border-top:1px solid var(--border);margin:2.5rem 0}
img{max-width:100%;height:auto}

/* Small screens: navigation becomes a disclosure above content */
@media (max-width:60rem){
  .layout{display:block;padding-top:1rem}
  .bar{justify-content:space-between}
  .sidebar{margin-bottom:2rem;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface)}
  .sidebar summary{display:block;cursor:pointer;padding:.9rem 1rem;font-weight:650;min-height:2.75rem}
  .sidebar .nav-body{padding:0 1rem 1rem}
  .sidebar a{padding:.7rem .75rem}
}
@media (max-width:30rem){
  body{font-size:1.0625rem}.theme button{padding:0 .6rem;min-width:2.5rem}
}
@media (prefers-reduced-motion:no-preference){
  a,button{transition:background-color .15s,color .15s}
}
@media (forced-colors:active){
  .theme button[aria-pressed="true"]{outline:2px solid CanvasText}
  .sidebar a[aria-current="page"]{outline:2px solid CanvasText}
}
@media print{
  .site-header,.sidebar,.skip{display:none}.layout{display:block}
  body{background:#fff;color:#000;font-size:12pt}
}

/* Heading anchors and table of contents */
h2,h3,h4{position:relative}
.anchor{margin-inline-start:.4em;color:var(--muted);text-decoration:none;font-weight:400;opacity:0}
h2:hover .anchor,h3:hover .anchor,h4:hover .anchor,.anchor:focus-visible{opacity:1}
@media (hover:none){.anchor{opacity:.7}}
.toc{margin:0 0 2rem;padding:1rem 1.25rem;border:1px solid var(--border);border-radius:var(--radius);background:var(--card)}
.toc h2{font-size:.8rem;text-transform:uppercase;letter-spacing:.09em;color:var(--muted);border:0;padding:0;margin:0 0 .5rem}
.toc ol{list-style:none;margin:0;padding:0}
.toc li{margin:0}
.toc a{display:block;padding:.3rem 0;color:var(--link);font-size:1rem}
.toc .toc-l3{padding-inline-start:1.25rem}

/* Search */
.sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.search{position:relative;flex:0 1 18rem;margin-inline-start:auto}
.search[hidden]{display:none}
.search input{width:100%;min-height:2.75rem;font:inherit;font-size:1rem;color:var(--text);background:var(--card);
  border:1px solid var(--control);border-radius:999px;padding:0 1rem}
.search input:focus-visible{outline-offset:2px}
.search input::placeholder{color:var(--muted);opacity:1}
.search ul{position:absolute;top:calc(100% + .4rem);inset-inline-end:0;width:min(28rem,calc(100vw - 2.5rem));max-height:70vh;overflow:auto;
  list-style:none;margin:0;padding:.35rem;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);box-shadow:0 8px 24px rgb(0 0 0/.18)}
.search li{margin:0;border-radius:.4rem}
.search li a{display:block;padding:.6rem .75rem;color:var(--text);text-decoration:none;font-size:1rem;line-height:1.4}
.search li[aria-selected="true"],.search li:hover{background:var(--surface);outline:2px solid var(--accent);outline-offset:-2px}
.search li:hover:not([aria-selected="true"]){outline:0}
.result-section{margin-inline-start:.6em;font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.result-snippet{display:block;color:var(--muted);font-size:.9rem;margin-top:.15rem}
.no-results{padding:.6rem .75rem;color:var(--muted)}
@media (max-width:60rem){
  .bar{flex-wrap:wrap}
  .brand{margin-inline-end:auto}
  .search{order:3;flex:1 1 100%;margin:0 0 .25rem}
  .search ul{inset-inline:0;width:auto}
}

/* Breadcrumbs and See also */
.breadcrumbs{margin:0 0 .75rem;font-size:.9rem}
.breadcrumbs ol{display:flex;flex-wrap:wrap;list-style:none;margin:0;padding:0;gap:.25rem .5rem}
.breadcrumbs li{margin:0;color:var(--muted)}
.breadcrumbs li+li::before{content:"/";margin-inline-end:.5rem;color:var(--muted)}
.breadcrumbs a{color:var(--link);padding:.35rem 0;display:inline-block;text-decoration:none}
.breadcrumbs a:hover{text-decoration:underline}
.breadcrumbs [aria-current]{color:var(--text);font-weight:600}
.see-also{margin-top:3.5rem;padding-top:1rem;border-top:1px solid var(--border)}
.see-also h2{border:0;padding:0;margin:0 0 .75rem;font-size:1.3rem}
.see-also ul{list-style:none;margin:0;padding:0;display:grid;gap:.75rem}
.see-also li{margin:0;padding:.9rem 1.1rem;border:1px solid var(--border);border-radius:var(--radius);background:var(--card)}
.see-also li a{font-weight:650;display:block}
.see-also li span{display:block;color:var(--muted);font-size:.95rem;margin-top:.15rem}

/* Language switcher and fallback markers */
.langs{position:relative}
.langs summary{list-style:none;cursor:pointer;min-height:2.75rem;display:inline-flex;align-items:center;padding:0 1rem;border:1px solid var(--control);border-radius:999px;background:var(--card);font-size:.95rem}
.langs summary::-webkit-details-marker{display:none}
.langs summary::after{content:"";margin-inline-start:.5rem;border:.3rem solid transparent;border-top-color:currentColor;border-bottom:0}
.langs ul{position:absolute;inset-inline-end:0;top:calc(100% + .4rem);z-index:15;min-width:10rem;list-style:none;margin:0;padding:.35rem;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);box-shadow:0 8px 24px rgb(0 0 0/.18)}
.langs li{margin:0}
.langs li a,.langs li span{display:block;padding:.6rem .75rem;border-radius:.4rem;color:var(--text);text-decoration:none;font-size:1rem}
.langs li a:hover{background:var(--surface);text-decoration:underline}
.langs li [aria-current]{font-weight:700}
.fallback{font-size:.7rem;letter-spacing:.06em;color:var(--muted);border:1px solid var(--border);border-radius:.3rem;padding:0 .3rem;margin-inline-start:.25rem;vertical-align:.1em}

/* Cursive scripts (Arabic, Persian, Urdu, Hebrew) must not be letter-spaced or upper-cased */
:root[dir="rtl"] *{letter-spacing:0!important;text-transform:none!important}

/* Sticky navigation and the right-hand "On this page" rail */
.toc a[aria-current="location"]{color:var(--text);font-weight:700;box-shadow:inset 3px 0 0 var(--accent);padding-inline-start:.6rem;margin-inline-start:-.6rem}
:root[dir="rtl"] .toc a[aria-current="location"]{box-shadow:inset -3px 0 0 var(--accent)}
@media (min-width:60.01rem){
  .sidebar{position:sticky;top:5rem;align-self:start;max-height:calc(100vh - 6rem);overflow:auto;overscroll-behavior:contain;padding-inline-end:.5rem}
}
@media (min-width:75rem){
  main.has-toc{max-width:none;display:grid;grid-template-columns:minmax(0,var(--measure)) 15rem;grid-template-rows:auto 1fr auto auto auto;column-gap:3rem}
  main.has-toc>.page-head,main.has-toc>.content,main.has-toc>.cards,main.has-toc>.see-also,main.has-toc>.pagination{grid-column:1}
  main.has-toc>.toc{grid-column:2;grid-row:1/-1;align-self:start;position:sticky;top:5.5rem;max-height:calc(100vh - 7rem);overflow:auto;
    margin:.4rem 0 0;padding:0 0 0 1.25rem;background:none;border:0;border-inline-start:1px solid var(--border);border-radius:0}
  :root[dir="rtl"] main.has-toc>.toc{padding:0 1.25rem 0 0}
}
@media (forced-colors:active){.toc a[aria-current="location"]{outline:2px solid CanvasText}}

/* Syntax highlighting and callouts (their colours are defined, and contrast-checked, in brand.css) */
.s-comment{color:var(--tok-comment);font-style:italic}
.s-keyword,.s-storage{color:var(--tok-keyword)}
.s-string{color:var(--tok-string)}
.s-constant.s-numeric,.s-constant.s-language,.s-constant.s-character{color:var(--tok-number)}
.s-entity.s-name.s-function,.s-support.s-function,.s-meta.s-function-call .s-variable.s-function{color:var(--tok-func)}
.s-entity.s-name.s-type,.s-entity.s-name.s-class,.s-support.s-type,.s-support.s-class,.s-storage.s-type{color:var(--tok-type)}
.code-lang{position:absolute;inset-block-start:.5rem;inset-inline-start:1.25rem;font:.75rem var(--mono);text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.copy{position:absolute;inset-block-start:.4rem;inset-inline-end:.5rem;min-height:2rem;padding:0 .8rem;font:inherit;font-size:.85rem;color:var(--text);background:var(--card);border:1px solid var(--control);border-radius:.4rem;cursor:pointer}
.copy:hover{background:var(--surface)}
:root[dir="rtl"] .code{direction:ltr}
:root[dir="rtl"] .code-lang,:root[dir="rtl"] .copy{direction:rtl}
.callout{--c:var(--c-note);margin:0 0 1.2em;padding:.9rem 1.25rem;border:1px solid var(--border);border-inline-start:4px solid var(--c);border-radius:var(--radius);background:color-mix(in srgb,var(--c) 8%,var(--card))}
.callout-tip{--c:var(--c-tip)}.callout-important{--c:var(--c-important)}.callout-warning{--c:var(--c-warning)}.callout-caution{--c:var(--c-caution)}
.callout>:last-child{margin-bottom:0}
.callout-title{margin:0 0 .35rem;font-weight:750;color:var(--c);font-size:1rem}
.callout-title::before{content:"";display:inline-block;width:.6em;height:.6em;margin-inline-end:.5em;background:var(--c);border-radius:var(--shape,50%)}
.callout-tip{--shape:0}.callout-important{--shape:0 50% 50% 50%}.callout-warning{--shape:0;clip-path:none}.callout-caution{--shape:20%}
@media (forced-colors:active){.callout{border-color:CanvasText}}
@media print{.copy{display:none}}

/* Cards (home, landing pages) and previous/next pagination */
.cards{margin-top:2.5rem}
.cards h2{border:0;padding:0;margin:0 0 1rem;font-size:1.3rem}
.cards ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(15rem,1fr));gap:1rem}
.cards li{margin:0}
.cards a{display:block;height:100%;padding:1.1rem 1.25rem;border:1px solid var(--border);border-radius:var(--radius);background:var(--card);box-shadow:var(--shadow);color:var(--text);text-decoration:none}
.cards a:hover{border-color:var(--accent)}
.cards a:hover strong{text-decoration:underline}
.cards strong{display:block;color:var(--link);font-size:1.1rem;line-height:1.35}
.cards span{display:block;margin-top:.35rem;color:var(--muted);font-size:.95rem;line-height:1.5}
.pagination{display:flex;justify-content:space-between;gap:1rem;margin-top:3rem;padding-top:1.5rem;border-top:1px solid var(--border)}
.pagination a{flex:1 1 0;max-width:48%;display:block;padding:.9rem 1.1rem;border:1px solid var(--control);border-radius:var(--radius);text-decoration:none;color:var(--text)}
.pagination a:hover{border-color:var(--accent);background:var(--card)}
.pagination .next{margin-inline-start:auto;text-align:end}
.pagination span{display:block;font-size:.85rem;color:var(--muted)}
.pagination strong{display:block;color:var(--link);line-height:1.35}
@media (max-width:30rem){.pagination{flex-direction:column}.pagination a{max-width:none}}
@media print{.pagination,.cards{display:none}}

.updated{margin:-1rem 0 1.5rem;font-size:.9rem;color:var(--muted)}