:root{
  --brand:#4800B8; --heading:#37352f; --body:#37352f; --muted:#787774;
  --bg:#ffffff; --side:#f7f7f5; --hover:#f1f1ef; --border:#e9e9e7;
  --code-bg:#f7f6f3; --linkline:rgba(55,53,47,.25);
  --shadow:0 10px 30px -12px rgba(15,15,15,.2);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
/* Notaku uses the plain system font stack (measured on hub.areception.ai:
   ui-sans-serif -> Segoe UI on Windows, SF Pro on Mac) - no webfont at all */
body{margin:0;font-family:ui-sans-serif,-apple-system,system-ui,'Segoe UI',Helvetica,'Apple Color Emoji',Arial,sans-serif,'Segoe UI Emoji','Segoe UI Symbol';
  background:var(--bg);color:var(--body);font-size:16px;line-height:1.65}
/* .logo img (0,1,1) would beat a bare .logo-d (0,1,0), so hide/show rules
   must carry img.class specificity or the white logo stacks under the purple one */
.logo img.logo-d{display:none}
.top{position:sticky;top:0;z-index:40;padding:10px 22px;background:var(--bg);
  border-bottom:1px solid var(--border)}
.top-in{display:flex;align-items:center;max-width:1440px;margin:0 auto;width:100%}
.logo{margin-right:100px}
.logo img{height:25px;display:block}
.hlinks{display:flex}
.hlink{color:var(--brand);text-decoration:none;font-size:14.5px;font-weight:700;
  margin-right:34px;opacity:.72}
.hlink:hover{opacity:1}
.hlink.active{opacity:1;text-decoration:underline;text-underline-offset:6px;text-decoration-thickness:2px}
.top-right{margin-left:auto;display:flex;align-items:center}
.searchbtn{display:flex;align-items:center;border:1px solid var(--border);
  background:var(--side);color:var(--muted);border-radius:8px;padding:6px 12px;
  font:inherit;font-size:13.5px;cursor:pointer;min-width:180px;margin-left:10px}
.searchbtn .sb-label{margin-left:8px}
.searchbtn kbd{margin-left:auto;border:1px solid var(--border);border-radius:5px;
  padding:0 6px;font-size:12px;background:var(--bg);font-family:inherit}
#langSel{display:block;width:100%;border:1px solid var(--border);background:var(--bg);color:var(--body);
  border-radius:8px;padding:7px 10px;font:inherit;font-size:13.5px;margin:0 0 16px}
.iconbtn{border:1px solid var(--border);background:var(--bg);color:var(--muted);
  border-radius:8px;width:33px;height:33px;cursor:pointer;font-size:15px;padding:0}
.iconbtn:hover{background:var(--hover)}
.menu-btn{display:none;margin-right:12px}
.shell{display:flex;max-width:1440px;margin:0 auto;align-items:flex-start}
.side{flex:0 0 272px;width:272px;position:sticky;top:54px;max-height:calc(100vh - 54px);
  overflow-y:auto;padding:22px 14px 40px;background:var(--bg)}
.side nav{display:block}
.nav-link{display:flex;align-items:center;color:var(--heading);text-decoration:none;
  font-size:14px;font-weight:700;padding:8px 10px;border-radius:6px;line-height:1.45;margin:4px 0}
.nav-link:hover{background:var(--hover)}
.nav-link[aria-current="page"]{background:var(--hover);color:var(--brand)}
.nav-ico{width:20px;flex:0 0 20px;margin-right:7px;text-align:center}
img.icoimg{object-fit:contain;vertical-align:-2px}
img.nav-ico{width:16px;height:16px;flex:0 0 auto}
img.cp-ico{width:18px;height:18px;flex:0 0 auto}
img.h1-ico{width:34px;height:34px;vertical-align:-4px}
.nav-link.sub{padding-left:30px;font-size:13.5px;font-weight:500}
.navgrp summary{list-style:none;display:flex;align-items:center;cursor:pointer}
.navgrp summary::-webkit-details-marker{display:none}
.navgrp summary::after{content:'›';margin-left:auto;margin-right:8px;
  color:var(--muted);transition:transform .15s}
.navgrp[open] summary::after{transform:rotate(90deg)}
.navgrp summary .nav-link{flex:1}
.content{flex:1 1 auto;min-width:0;display:flex;justify-content:center}
.inner{width:100%;max-width:860px;padding:26px 44px 90px}
.pagetop{display:flex;justify-content:flex-end;min-height:20px}
.share{display:flex;align-items:center;color:var(--muted);font-size:11px;letter-spacing:.1em}
.share span{margin-right:4px}
.share a{color:var(--muted);display:inline-flex;padding:4px 6px;border-radius:6px}
.share a:hover{color:var(--heading);background:var(--hover)}
article{overflow-wrap:break-word}
h1{font-size:40px;line-height:1.25;color:var(--heading);font-weight:700;margin:16px 0 0}
.h1-ico{margin-right:10px}
.h1-rule{width:44px;height:2px;background:var(--border);margin:16px 0 30px;border-radius:2px}
h2{font-size:26px;color:var(--heading);font-weight:600;margin:40px 0 10px;line-height:1.4}
h3{font-size:20px;color:var(--heading);font-weight:600;margin:30px 0 8px}
h4{font-size:16.5px;color:var(--heading);font-weight:600;margin:24px 0 6px}
h2,h3,h4,.bid{scroll-margin-top:74px}
h2 .ha,h3 .ha,h4 .ha{color:inherit;text-decoration:none}
h2 .ha:hover,h3 .ha:hover,h4 .ha:hover{text-decoration:underline;text-underline-offset:5px;text-decoration-thickness:1.5px}
p{margin:0 0 12px}
article p a,article li a,article td a,article th a,article blockquote a,.callout a{
  color:inherit;text-decoration:none;border-bottom:1px solid var(--linkline);overflow-wrap:anywhere}
article p a:hover,article li a:hover,article td a:hover,.callout a:hover{background:var(--hover)}
article p,article li,article blockquote,.callout{overflow-wrap:anywhere}
hr{border:0;border-top:1px solid var(--border);margin:30px 0}
ul,ol{margin:0 0 14px;padding-left:26px}
li{margin:3px 0}
ul.todo{list-style:none;padding-left:4px}
ul.todo input{accent-color:var(--brand);margin-right:7px}
.indent{padding-left:22px}
.spacer{height:10px}
blockquote{border-left:3px solid var(--heading);margin:14px 0;padding:2px 0 2px 16px;color:var(--heading)}
code{background:var(--code-bg);border:1px solid var(--border);border-radius:4px;
  padding:1px 5px;font-size:13.2px;color:#c25145;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.codewrap{margin:16px 0}
.codewrap pre{background:var(--code-bg);border:1px solid var(--border);border-radius:8px;
  padding:16px 18px;overflow-x:auto;margin:0}
.codewrap pre code{background:none;border:0;padding:0;color:var(--body);font-size:13.2px;line-height:1.6}
.codewrap figcaption{font-size:13px;margin-top:6px;color:var(--muted)}
figure.img{margin:16px 0;text-align:center}
figure.img img{max-width:100%;max-height:500px;width:auto;height:auto;border-radius:4px}
figure.img figcaption{font-size:13px;margin-top:6px;color:var(--muted)}
.video{position:relative;aspect-ratio:16/9;margin:18px 0}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0;border-radius:8px}
video{max-width:100%;border-radius:8px}
.callout{display:flex;background:#f1f1ef;border-radius:6px;padding:16px;margin:14px 0}
.callout-ico{font-size:17px;line-height:1.5;flex:0 0 auto;max-width:22px;margin-right:12px}
img.callout-ico{width:21px;height:21px;margin-top:3px}
.callout > div{min-width:0}
.table-scroll{overflow-x:auto;margin:16px 0}
table{border-collapse:collapse;width:100%;font-size:14px;min-width:480px}
th{background:var(--side);color:var(--heading);font-weight:600;text-align:left}
th,td{padding:8px 12px;border:1px solid var(--border);vertical-align:top}
td.nw,th.nw{white-space:nowrap}
.cols{display:flex;margin:4px 0}
.cols .col{flex:1;min-width:0;padding-right:26px}
.cols .col:last-child{padding-right:0}
.cp-link{display:flex;align-items:center;padding:5px 4px;margin:1px 0;text-decoration:none;
  color:var(--heading);font-weight:500;font-size:15px;border-radius:6px}
.cp-link:hover{background:var(--hover)}
.cp-ico{margin-right:9px;font-size:16px}
.cp-t{border-bottom:1px solid var(--linkline)}
.filecard a{display:inline-flex;align-items:center;border:1px solid var(--border);
  border-radius:8px;padding:8px 14px;text-decoration:none;color:var(--heading);background:var(--side)}
.fico{margin-right:8px}
details.toggle{margin:8px 0;padding:2px 0}
details.toggle summary{cursor:pointer;color:var(--heading);font-weight:500}
details.toggle > *:not(summary){margin-left:20px}
span[class^="bg-"],span[class*=" bg-"]{border-radius:3px;padding:1px 3px;
  box-decoration-break:clone;-webkit-box-decoration-break:clone}
.fg-gray{color:#787774}.fg-brown{color:#9F6B53}.fg-orange{color:#D9730D}.fg-yellow{color:#CB912F}
.fg-green{color:#448361}.fg-blue{color:#337EA9}.fg-purple{color:#9065B0}.fg-pink{color:#C14C8A}.fg-red{color:#D44C47}
.bg-gray{background:#F1F1EF}.bg-brown{background:#F4EEEE}.bg-orange{background:#FBECDD}
.bg-yellow{background:#FBF3DB}.bg-green{background:#EDF3EC}.bg-blue{background:#E7F3F8}
.bg-purple{background:#F6F3F9}.bg-pink{background:#FAF1F5}.bg-red{background:#FDEBEC}
.prevnext{display:flex;justify-content:space-between;align-items:center;margin-top:56px}
.pn{display:flex;align-items:center;text-decoration:none;max-width:48%}
.pn span{color:var(--heading);font-weight:500;font-size:14.5px}
.pn .pn-ch{color:var(--muted);font-size:19px;line-height:1;font-weight:400}
.pn.prev .pn-ch{margin-right:9px}
.pn.next .pn-ch{margin-left:9px}
.pn:hover span{color:var(--brand)}
.pn.next{margin-left:auto;text-align:right}
.mapembed{position:relative;aspect-ratio:16/10;margin:18px 0}
.mapembed iframe{position:absolute;inset:0;width:100%;height:100%;border:0;border-radius:8px}
.foot{margin-top:64px;padding-top:20px;border-top:1px solid var(--border);
  font-size:13px;text-align:center}
.foot a{color:var(--muted);text-decoration:none;border-bottom:1px solid var(--linkline)}
.search-modal[hidden]{display:none}
.search-modal{position:fixed;inset:0;background:rgba(15,15,15,.45);backdrop-filter:blur(2px);
  -webkit-backdrop-filter:blur(2px);z-index:100;display:flex;justify-content:center;align-items:flex-start;padding:90px 16px}
.search-box{background:var(--bg);border:1px solid var(--border);border-radius:12px;
  width:100%;max-width:640px;box-shadow:var(--shadow);overflow:hidden}
#searchInput{width:100%;border:0;outline:0;background:transparent;color:var(--heading);
  font:inherit;font-size:16px;padding:16px 20px;border-bottom:1px solid var(--border)}
#searchResults{max-height:55vh;overflow-y:auto;padding:8px}
.sr{display:block;padding:10px 14px;border-radius:8px;text-decoration:none}
.sr b{color:var(--heading);display:block;font-weight:600;font-size:14.5px}
.sr span{font-size:13px;color:var(--muted)}
.sr:hover,.sr.active{background:var(--hover)}
.sr mark{background:none;color:var(--brand);font-weight:600}
.sr-empty{padding:16px;text-align:center;font-size:14px;color:var(--muted)}
@media (max-width: 960px){
  .shell{display:block}
  .menu-btn{display:block}
  .hlinks{display:none}
  .sb-label{display:none}
  .searchbtn{min-width:0}
  .searchbtn kbd{display:none}
  .side{position:fixed;left:0;top:54px;bottom:0;width:290px;max-width:85vw;z-index:60;
    transform:translateX(-102%);transition:transform .2s;box-shadow:var(--shadow);
    background:var(--bg);max-height:none;border-right:1px solid var(--border)}
  .side.open{transform:none}
  .inner{padding:20px 18px 60px}
  .cols{display:block}
  .cols .col{padding-right:0}
  .prevnext{flex-direction:column}
  .pn{max-width:100%}
  .pn.next{margin-left:0;text-align:left;margin-top:10px}
}

[data-theme="dark"]{
  --brand:#a678ff; --heading:#e8e8e6; --body:#d4d4d4; --muted:#9b9b9b;
  --bg:#191919; --side:#202020; --hover:#2c2c2c; --border:#333333;
  --code-bg:#242424; --linkline:rgba(212,212,212,.3);
  --shadow:0 10px 30px -12px rgba(0,0,0,.7);
}
[data-theme="dark"] .logo img.logo-l{display:none}
[data-theme="dark"] .logo img.logo-d{display:block}
[data-theme="dark"] .callout{background:#252525}
[data-theme="dark"] code{color:#e08477}
[data-theme="dark"] .fg-gray{color:#9b9b9b}[data-theme="dark"] .fg-brown{color:#ba856f}[data-theme="dark"] .fg-orange{color:#c77d48}
[data-theme="dark"] .fg-yellow{color:#ca9849}[data-theme="dark"] .fg-green{color:#529e72}[data-theme="dark"] .fg-blue{color:#5e87c9}
[data-theme="dark"] .fg-purple{color:#9d68d3}[data-theme="dark"] .fg-pink{color:#d15796}[data-theme="dark"] .fg-red{color:#df5452}
[data-theme="dark"] .bg-gray{background:#2f2f2f}[data-theme="dark"] .bg-brown{background:#4a3228}[data-theme="dark"] .bg-orange{background:#5c3b23}
[data-theme="dark"] .bg-yellow{background:#564328}[data-theme="dark"] .bg-green{background:#243d30}[data-theme="dark"] .bg-blue{background:#143a4e}
[data-theme="dark"] .bg-purple{background:#3c2d49}[data-theme="dark"] .bg-pink{background:#4e2c3c}[data-theme="dark"] .bg-red{background:#522e2a}
@media (prefers-color-scheme: dark){
:root:not([data-theme="light"]){
  --brand:#a678ff; --heading:#e8e8e6; --body:#d4d4d4; --muted:#9b9b9b;
  --bg:#191919; --side:#202020; --hover:#2c2c2c; --border:#333333;
  --code-bg:#242424; --linkline:rgba(212,212,212,.3);
  --shadow:0 10px 30px -12px rgba(0,0,0,.7);
}
:root:not([data-theme="light"]) .logo img.logo-l{display:none}
:root:not([data-theme="light"]) .logo img.logo-d{display:block}
:root:not([data-theme="light"]) .callout{background:#252525}
:root:not([data-theme="light"]) code{color:#e08477}
:root:not([data-theme="light"]) .fg-gray{color:#9b9b9b}:root:not([data-theme="light"]) .fg-brown{color:#ba856f}:root:not([data-theme="light"]) .fg-orange{color:#c77d48}
:root:not([data-theme="light"]) .fg-yellow{color:#ca9849}:root:not([data-theme="light"]) .fg-green{color:#529e72}:root:not([data-theme="light"]) .fg-blue{color:#5e87c9}
:root:not([data-theme="light"]) .fg-purple{color:#9d68d3}:root:not([data-theme="light"]) .fg-pink{color:#d15796}:root:not([data-theme="light"]) .fg-red{color:#df5452}
:root:not([data-theme="light"]) .bg-gray{background:#2f2f2f}:root:not([data-theme="light"]) .bg-brown{background:#4a3228}:root:not([data-theme="light"]) .bg-orange{background:#5c3b23}
:root:not([data-theme="light"]) .bg-yellow{background:#564328}:root:not([data-theme="light"]) .bg-green{background:#243d30}:root:not([data-theme="light"]) .bg-blue{background:#143a4e}
:root:not([data-theme="light"]) .bg-purple{background:#3c2d49}:root:not([data-theme="light"]) .bg-pink{background:#4e2c3c}:root:not([data-theme="light"]) .bg-red{background:#522e2a}
}