:root{
 --navh:3.5rem; --sbw:300px; --tocw:240px;
 --brand:#503B9F; --brand-2:#453384; --accent:#5b46b3;
 --bg:#fff; --bg-alt:#f7f8fa; --surface:#fff;
 --fg:#1c1e21; --muted:#606770; --line:#e4e7eb; --mark:#fff2a8;
 --code-bg:#f2f3f5;
}
:root[data-theme=dark]{
 --brand:#453384; --accent:#9aa4e6;
 --bg:#1b1b1d; --bg-alt:#242526; --surface:#242526;
 --fg:#e3e3e3; --muted:#a3a7ad; --line:#3a3c41; --mark:#7a6a17;
 --code-bg:#2b2b2e;
}
*{box-sizing:border-box}
html,body{margin:0}
body{font:16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--fg);background:var(--bg)}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
/* navbar */
.navbar{position:fixed;top:0;left:0;right:0;height:var(--navh);z-index:100;display:flex;align-items:center;
 gap:1rem;padding:0 1rem;background:var(--brand);color:#fff;box-shadow:0 1px 2px rgba(0,0,0,.1)}
.navbar .brand{color:#fff;font-weight:700;font-size:1.05rem;white-space:nowrap}
.nav-burger{display:none;background:none;border:0;color:#fff;font-size:1.3rem;cursor:pointer}
.search-wrap{position:relative;flex:1 1 auto;max-width:520px;margin-left:auto}
#q{width:100%;padding:.45rem .7rem;border:0;border-radius:8px;font-size:.95rem;background:rgba(255,255,255,.15);color:#fff}
#q::placeholder{color:rgba(255,255,255,.75)}
#q:focus{outline:2px solid rgba(255,255,255,.6);background:#fff;color:#1c1e21}
#q:focus::placeholder{color:#8a9099}
.guide-switch{flex:0 1 auto;min-width:0;max-width:min(380px,34vw);background:rgba(255,255,255,.15);color:#fff;border:0;
 border-radius:8px;padding:.4rem .6rem;font-size:.9rem;font-weight:600;cursor:pointer;
 text-overflow:ellipsis;white-space:nowrap}
.guide-switch option,.guide-switch optgroup{color:#1c1e21;background:#fff}
.guide-switch optgroup{font-weight:700;font-style:normal}
.theme-toggle,.pane-toggle{background:rgba(255,255,255,.15);border:0;color:#fff;width:2.1rem;height:2.1rem;border-radius:8px;cursor:pointer;font-size:1rem;line-height:1;flex:0 0 auto}
.pane-toggle:hover,.theme-toggle:hover{background:rgba(255,255,255,.3)}
:root[data-nav=hidden] .nav-toggle{opacity:.45}
:root[data-toc=hidden] .toc-toggle{opacity:.45}
:root[data-theme=dark] .ti-light{display:none}
:root:not([data-theme=dark]) .ti-dark{display:none}
/* search results */
.results{position:absolute;top:120%;left:0;right:0;max-height:74vh;overflow:auto;background:var(--surface);
 border:1px solid var(--line);border-radius:10px;box-shadow:0 10px 40px rgba(0,0,0,.22);padding:.35rem}
.results .r{display:block;padding:.5rem .6rem;border-radius:7px;color:var(--fg)}
.results .r:hover,.results .r.active{background:var(--bg-alt);text-decoration:none}
.results .rc{font-size:.72rem;color:var(--muted);text-transform:uppercase;letter-spacing:.03em}
.results .rt{font-weight:600;color:var(--accent)}
.results .rx{font-size:.86rem;color:var(--muted)}
.results mark,.sec-body mark{background:var(--mark);color:inherit;border-radius:2px;padding:0 .1em}
.results .empty{padding:.7rem;color:var(--muted)}
/* layout */
.page{display:grid;grid-template-columns:var(--col-sb,var(--sbw)) minmax(0,1fr) var(--col-toc,var(--tocw));
 padding-top:var(--navh);min-height:100vh}
.page.no-toc{grid-template-columns:var(--col-sb,var(--sbw)) minmax(0,1fr)}
/* collapse either side pane */
:root[data-nav=hidden]{--col-sb:0px}
:root[data-toc=hidden]{--col-toc:0px}
@media(min-width:801px){
 /* pin panes to fixed columns so a hidden pane doesn't shift content's track */
 .sidebar{grid-column:1}.content{grid-column:2}.toc{grid-column:3}
 :root[data-nav=hidden] .sidebar,:root[data-nav=hidden] .rz-left{display:none}
 :root[data-toc=hidden] .toc,:root[data-toc=hidden] .rz-right{display:none}
}
.sidebar{position:sticky;top:var(--navh);align-self:start;height:calc(100vh - var(--navh));overflow-y:auto;
 background:var(--bg-alt);border-right:1px solid var(--line);padding:1rem .5rem}
.menu-list,.cat-items,.toc-list{list-style:none;margin:0;padding:0}
.cat-link{display:block;padding:.4rem .6rem;border-radius:7px;color:var(--fg);font-weight:600;font-size:.92rem}
.cat-link:hover{background:var(--line);text-decoration:none}
.cat-link.current{color:#fff;background:var(--brand)}
.cat-items{margin:.15rem 0 .5rem .35rem;border-left:1px solid var(--line);padding-left:.4rem}
.s-link{display:block;padding:.22rem .55rem;border-radius:6px;color:var(--muted);font-size:.87rem}
.s-link:hover{color:var(--fg);background:var(--line);text-decoration:none}
.s-link.active{color:var(--accent);font-weight:600;background:var(--bg)}
.cat:not(.open) .cat-items{display:none}
/* content */
.content{min-width:0;padding:1.4rem 3rem 4rem}
.doc{max-width:none}
.eyebrow{font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;color:var(--brand);font-weight:700}
:root[data-theme=dark] .eyebrow{color:var(--accent)}
.doc-section{scroll-margin-top:calc(var(--navh) + .6rem);padding:1.1rem 0 1.6rem;border-top:1px solid var(--line)}
.doc-section:first-of-type{border-top:0}
.subgroup{margin:2.2rem 0 .4rem;font-size:1.4rem;color:var(--brand);border-bottom:2px solid var(--line);padding-bottom:.3rem}
:root[data-theme=dark] .subgroup{color:var(--accent)}
.crumb{font-size:.72rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin:0 0 .2rem}
.sec-body h1{font-size:2rem;line-height:1.2;margin:.2rem 0 1rem}
.sec-body h2{font-size:1.6rem;margin:2rem 0 .7rem;padding-bottom:.3rem;border-bottom:1px solid var(--line)}
.sec-body h3{font-size:1.3rem;margin:1.7rem 0 .5rem;color:var(--accent)}
.sec-body h4{font-size:1.12rem;margin:1.4rem 0 .4rem;font-weight:700}
.sec-body h5{font-size:1rem;margin:1.2rem 0 .3rem;font-weight:700;color:var(--muted)}
.sec-body h6{font-size:.92rem;margin:1rem 0 .3rem;font-weight:700;color:var(--muted)}
.sec-body img{max-width:100%;height:auto;border:1px solid var(--line);border-radius:6px}
.sec-body table{border-collapse:collapse;max-width:100%;display:block;overflow-x:auto;margin:1.1rem 0;font-size:.94rem}
.sec-body th,.sec-body td{border:1px solid var(--line);padding:.5rem .75rem;vertical-align:top;text-align:left}
.sec-body th{background:var(--bg-alt);font-weight:700}
.sec-body tbody tr:nth-child(even){background:var(--bg-alt)}
.sec-body td>*:first-child,.sec-body th>*:first-child{margin-top:0}
.sec-body td>*:last-child,.sec-body th>*:last-child{margin-bottom:0}
.sec-body td p,.sec-body th p{margin:.3rem 0}
.sec-body p{margin:.6rem 0}
/* code blocks */
.sec-body code{background:var(--code-bg);border-radius:5px;padding:.1rem .35rem;font-size:.9em;
 font-family:ui-monospace,SFMono-Regular,"Cascadia Code",Menlo,Consolas,monospace}
.codeblock{position:relative;margin:1rem 0}
.sec-body pre{margin:0;background:var(--code-bg);border:1px solid var(--line);border-radius:8px;
 padding:1rem 1.1rem;overflow-x:auto;font-size:.88rem;line-height:1.55}
.sec-body pre code{background:none;padding:0;font-size:inherit;color:var(--fg)}
/* neutralize MadCap inline syntax colors so code is readable in both themes */
.sec-body pre code *{color:var(--fg)!important;opacity:1!important;background:transparent!important}
.copy-btn{position:absolute;top:.5rem;right:.5rem;padding:.25rem .6rem;font-size:.72rem;font-weight:600;
 border:1px solid var(--line);border-radius:6px;background:var(--surface);color:var(--muted);cursor:pointer;
 opacity:0;transition:opacity .15s}
.codeblock:hover .copy-btn,.copy-btn:focus{opacity:1}
.copy-btn.copied{color:#2e7d32;border-color:#2e7d32}
/* missing-image placeholder */
.img-missing{display:inline-flex;align-items:center;gap:.4rem;padding:.35rem .7rem;margin:.4rem 0;
 font-size:.82rem;color:var(--muted);background:var(--bg-alt);border:1px dashed var(--line);border-radius:6px}
/* right toc */
.toc{position:sticky;top:var(--navh);align-self:start;height:calc(100vh - var(--navh));overflow-y:auto;
 padding:1.4rem 1rem;font-size:.85rem;border-left:1px solid var(--line)}
.toc-title{font-weight:700;font-size:.72rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin-bottom:.5rem}
.toc-list a{display:block;padding:.2rem .5rem;border-left:2px solid transparent;color:var(--muted)}
.toc-list a:hover{color:var(--fg);text-decoration:none}
.toc-list a.active{color:var(--accent);border-left-color:var(--accent);font-weight:600}
.toc-l1 a{padding-left:1.1rem}.toc-l2 a{padding-left:1.9rem}.toc-l3 a{padding-left:2.7rem}
.toc-l0 a{font-weight:600}
.cards-title{font-size:1.15rem;margin:1.8rem 0 .7rem}
/* home */
.home .lead{color:var(--muted);font-size:1.05rem;max-width:640px}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:.8rem;margin-top:1.5rem}
.card{display:flex;flex-direction:column;gap:.3rem;padding:1rem;border:1px solid var(--line);border-radius:10px;background:var(--surface)}
.card:hover{border-color:var(--brand);text-decoration:none;box-shadow:0 4px 16px rgba(0,0,0,.08)}
.card-t{font-weight:700;color:var(--fg)}
.card-n{font-size:.8rem;color:var(--muted)}
/* resize handles (position:fixed so they don't take a grid track) */
.rz{position:fixed;top:var(--navh);bottom:0;width:9px;z-index:60;cursor:col-resize;background:transparent}
.rz::after{content:"";position:absolute;top:0;bottom:0;left:4px;width:1px;background:var(--line)}
.rz:hover::after,.rz.active::after{background:var(--brand);width:3px;left:3px}
.rz-left{left:var(--sbw);margin-left:-4px}
.rz-right{right:var(--tocw);margin-right:-4px}
/* responsive */
@media(max-width:1100px){.page{grid-template-columns:var(--col-sb,var(--sbw)) minmax(0,1fr)}.toc,.rz-right,.toc-toggle{display:none}}
@media(max-width:800px){
 .page,.page.no-toc{grid-template-columns:1fr}
 .rz,.pane-toggle{display:none}
 .nav-burger{display:block;order:-1}
 .sidebar{position:fixed;top:var(--navh);left:0;bottom:0;width:82%;max-width:320px;transform:translateX(-100%);
   transition:transform .2s;z-index:90}
 body.sidebar-open .sidebar{transform:none;box-shadow:0 0 0 100vmax rgba(0,0,0,.4)}
 .content{padding:1.2rem 1.1rem 3rem}
}