:root{
  --bg:#07080a; --bg2:#0d0f12; --ink:#e9edf0; --dim:#7c868f; --line:#1c2126;
  --acc:#c6ff3d; --hot:#ff4d2e; --cool:#5cc8ff; --vio:#b38cff;
  --sans:"Space Grotesk",system-ui,sans-serif; --mono:"JetBrains Mono",ui-monospace,monospace;
  --top:56px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--top) + 20px)}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
.mono{font-family:var(--mono)}
.dim{color:var(--dim)}

/* top bar */
.top{position:fixed;top:0;left:0;right:0;height:var(--top);z-index:40;display:flex;align-items:center;gap:20px;padding:0 24px;background:rgba(7,8,10,.85);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;font-weight:500;letter-spacing:-.01em}
.brand b{font-weight:700}
.brand .logo{width:24px;height:24px;color:var(--acc)}
.brand em{font-style:normal;font-size:11px;color:var(--dim);border:1px solid var(--line);border-radius:999px;padding:2px 9px;margin-left:4px}
.search-btn{white-space:nowrap;margin-left:auto;display:flex;align-items:center;gap:36px;background:var(--bg2);border:1px solid var(--line);color:var(--dim);border-radius:10px;padding:8px 12px;font-size:12px;cursor:pointer;min-width:230px;justify-content:space-between;transition:border-color .2s}
.search-btn:hover{border-color:#3a434b}
kbd{font-family:var(--mono);font-size:10.5px;border:1px solid var(--line);border-radius:5px;padding:1px 6px;color:var(--dim);background:var(--bg)}
.top-nav{display:flex;gap:20px;font-size:12px}
.top-nav a{opacity:.7;transition:opacity .2s}.top-nav a:hover{opacity:1}
.menu-btn{display:none;background:none;border:1px solid var(--line);color:var(--ink);border-radius:8px;padding:6px 10px;font-size:12px;cursor:pointer}

/* layout */
.shell{display:grid;grid-template-columns:268px minmax(0,1fr) 224px;max-width:1440px;margin:0 auto;padding-top:var(--top)}
.sidebar{position:sticky;top:var(--top);align-self:start;height:calc(100vh - var(--top));overflow:auto;padding:28px 18px 60px 24px;border-right:1px solid var(--line)}
.sb-group{margin-bottom:26px}
.sb-group h4{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--acc);margin-bottom:8px;font-weight:600}
.sb-group a{display:block;padding:5px 10px;margin-left:-10px;border-radius:8px;font-size:14.5px;color:#aab3ba;transition:color .15s,background .15s}
.sb-group a:hover{color:var(--ink);background:var(--bg2)}
.sb-group a.on{color:var(--acc);background:rgba(198,255,61,.07)}
.doc{padding:44px clamp(20px,4vw,56px) 80px;min-width:0}
.crumb{font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--acc);margin-bottom:14px}
.toc{position:sticky;top:var(--top);align-self:start;max-height:calc(100vh - var(--top));overflow:auto;padding:44px 20px 40px 8px;font-size:13px}
.toc h4{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--dim);margin-bottom:12px;font-weight:600}
.toc a{display:block;padding:4px 0 4px 12px;border-left:1px solid var(--line);color:#8a949c;transition:color .15s,border-color .15s}
.toc a.l3{padding-left:26px;font-size:12.5px}
.toc a:hover,.toc a.on{color:var(--ink);border-left-color:var(--acc)}

/* prose */
article{max-width:780px}
article h1{font-size:clamp(34px,4.6vw,54px);line-height:1.04;letter-spacing:-.035em;margin-bottom:20px;font-weight:700}
article h2{font-size:clamp(24px,2.6vw,32px);letter-spacing:-.025em;line-height:1.15;margin:52px 0 14px;font-weight:700;padding-top:10px;border-top:1px solid var(--line)}
article h3{font-size:19px;letter-spacing:-.01em;margin:34px 0 10px;font-weight:600}
article p{color:#c3cad0;margin-bottom:16px;font-size:16.5px}
article > p:first-of-type{font-size:19px;color:#d6dce1;line-height:1.5}
article ul,article ol{margin:0 0 18px 22px;color:#c3cad0;font-size:16.5px}
article li{margin:5px 0}
article li::marker{color:var(--acc)}
article a{color:var(--acc);border-bottom:1px solid rgba(198,255,61,.3);transition:border-color .2s}
article a:hover{border-bottom-color:var(--acc)}
article strong{color:var(--ink);font-weight:600}
article hr{border:0;border-top:1px solid var(--line);margin:36px 0}
article blockquote{border-left:2px solid var(--acc);background:rgba(198,255,61,.05);padding:12px 18px;margin:0 0 18px;border-radius:0 10px 10px 0}
article blockquote p{margin:0;font-size:15.5px}
.headerlink{opacity:0;margin-left:8px;color:var(--dim)!important;border:0!important;font-weight:400;transition:opacity .2s}
h2:hover .headerlink,h3:hover .headerlink{opacity:1}
code{font-family:var(--mono);font-size:.86em;background:var(--bg2);border:1px solid var(--line);border-radius:6px;padding:1px 6px;color:#dfe6c9}
pre{margin:0 0 20px}
.hl{background:var(--bg2);border:1px solid var(--line);border-radius:12px;margin:0 0 20px;position:relative}
.hl pre{padding:16px 18px;overflow:auto;font-family:var(--mono);font-size:13.5px;line-height:1.7;color:#d3dae0;margin:0}
.hl code{background:none;border:0;padding:0;color:inherit;font-size:inherit}
.hl .k,.hl .kd,.hl .kn,.hl .kr,.hl .kp,.hl .ow{color:var(--vio)}
.hl .kt,.hl .nc,.hl .nn{color:var(--cool)}
.hl .s,.hl .s1,.hl .s2,.hl .sa,.hl .sb,.hl .sc,.hl .se,.hl .sx{color:#8be0a4}
.hl .c,.hl .c1,.hl .cm,.hl .cs,.hl .ch{color:#5c6770;font-style:italic}
.hl .nf,.hl .fm,.hl .nb{color:var(--acc)}
.hl .mi,.hl .mf,.hl .mh,.hl .m{color:#ffb86b}
.hl .nd,.hl .na{color:#ff9d8a}
.hl .o,.hl .p{color:#9aa4ac}
.hl .err{color:inherit;background:none;border:0}
.copy{position:absolute;top:8px;right:8px;font-family:var(--mono);font-size:10.5px;color:var(--dim);background:var(--bg);border:1px solid var(--line);border-radius:999px;padding:2px 9px;cursor:pointer;opacity:0;transition:opacity .2s,color .2s}
.hl:hover .copy,.copy:focus{opacity:1}
.copy.done{color:var(--acc);border-color:var(--acc);opacity:1}
.tbl{overflow-x:auto;margin:0 0 22px;border:1px solid var(--line);border-radius:12px}
table{border-collapse:collapse;width:100%;font-size:14.5px}
th,td{text-align:left;padding:9px 14px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--dim);font-weight:600;background:var(--bg2);white-space:nowrap}
tr:last-child td,tr:last-child th{border-bottom:0}
td{color:#c3cad0}

/* capability matrix */
.cap-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;margin:0 0 10px}
.cap-table{font-size:13px;min-width:860px}
.cap-table thead th{text-align:center;font-size:10px;padding:9px 8px}
.cap-table thead th:first-child{text-align:left}
.cap-table tbody th{font-family:var(--sans);text-transform:none;letter-spacing:0;font-size:13.5px;color:var(--ink);background:none;white-space:nowrap}
.cap-table td{text-align:center;padding:7px 8px;font-size:12px;color:var(--dim)}
.cap{font-family:var(--mono)}
.cap.yes{color:var(--acc)}.cap.emu{color:#ffb86b}.cap.no{color:#4a535b}.cap.unk{color:#4a535b}
.cap-legend{font-size:13px!important;color:var(--dim)!important}

/* note box */
.admonition{border:1px solid var(--line);border-left:3px solid var(--cool);border-radius:10px;padding:12px 16px;margin:0 0 20px;background:var(--bg2)}
.admonition.warning{border-left-color:#ffb86b}
.admonition-title{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--dim);margin-bottom:4px!important;font-size:11px!important}
.admonition p{margin-bottom:6px;font-size:15px}

.edit{margin-top:60px;font-size:12px}
.edit a{color:var(--dim)}.edit a:hover{color:var(--acc)}
.prevnext{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:22px;max-width:780px}
.pn{border:1px solid var(--line);border-radius:12px;padding:14px 18px;font-weight:600;transition:border-color .2s,transform .3s cubic-bezier(.2,.8,.2,1)}
.pn:hover{border-color:var(--acc);transform:translateY(-3px)}
.pn span{display:block;font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--dim);font-weight:400;margin-bottom:2px}
.pn.next{text-align:right;grid-column:2}

/* search */
.search-modal{position:fixed;inset:0;z-index:100;background:rgba(3,4,5,.7);backdrop-filter:blur(4px);display:flex;justify-content:center;align-items:flex-start;padding:12vh 16px 0}
.search-modal[hidden]{display:none}
.search-box{width:min(640px,100%);background:var(--bg2);border:1px solid #2a3138;border-radius:16px;overflow:hidden;box-shadow:0 30px 80px rgba(0,0,0,.6)}
.search-box input{width:100%;background:none;border:0;border-bottom:1px solid var(--line);color:var(--ink);font-size:15px;padding:18px 20px;outline:none}
#searchResults{list-style:none;max-height:50vh;overflow:auto}
#searchResults li a{display:block;padding:11px 20px;border-bottom:1px solid var(--line)}
#searchResults li.on a,#searchResults li a:hover{background:rgba(198,255,61,.07)}
#searchResults b{display:block;font-weight:600;font-size:15px}
#searchResults small{display:block;color:var(--dim);font-size:12.5px;margin-top:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
#searchResults mark{background:none;color:var(--acc)}
#searchResults .g{font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--acc);float:right;margin-top:4px}
.search-hint{padding:10px 20px;font-size:11px;color:var(--dim)}
.empty{padding:22px 20px;color:var(--dim);font-size:14px}

@media(max-width:1180px){.shell{grid-template-columns:250px minmax(0,1fr)}.toc{display:none}}
@media(max-width:820px){
  .shell{grid-template-columns:1fr}
  .menu-btn{display:block}
  .top-nav{display:none}
  .search-btn{min-width:0;gap:12px;margin-left:auto}.search-btn kbd{display:none}
  .sidebar{position:fixed;left:0;top:var(--top);bottom:0;width:min(300px,86vw);height:auto;background:var(--bg);z-index:35;transform:translateX(-100%);transition:transform .3s cubic-bezier(.2,.8,.2,1)}
  .sidebar.open{transform:none;box-shadow:20px 0 60px rgba(0,0,0,.6)}
  .prevnext{grid-template-columns:1fr}.pn.next{grid-column:1}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.pn,.sidebar{transition:none}}