:root {
  --bg: #0f1720;
  --bg-soft: #16212e;
  --panel: #1b2836;
  --border: #2a3a4d;
  --text: #e8eef5;
  --muted: #9fb0c3;
  /* CoTrackPro brand tokens (mirror tailwind.config brand scale: sky-500 #0ea5e9) */
  --brand: #0ea5e9;   /* sky-500 — primary brand */
  --brand-2: #38bdf8; /* sky-400 — links + gradient end */
  --accent: #f97316;  /* orange-500 — warm accent */
  --code-bg: #0b1219;
  --radius: 14px;
  --maxw: 1040px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: radial-gradient(1200px 600px at 70% -10%, #1c2c3c 0, var(--bg) 55%) no-repeat;
  background-attachment: fixed;
  color: var(--text);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--brand-2); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }
code, pre { font-family: "SF Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }

/* header */
header {
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: blur(8px);
  background: rgba(15, 23, 32, 0.72);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; gap: 14px; min-height: 62px; padding: 8px 0; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: -0.2px; }
.logo { height: 26px; width: auto; max-width: 150px; border-radius: 6px; display: inline-block; vertical-align: middle; object-fit: contain; }
.nav .spacer { flex: 1; }
.nav a { color: var(--muted); font-size: 14px; }
.nav a:hover { color: var(--text); text-decoration: none; }
.nav a.active { color: var(--text); }
.pill { font-size: 12px; color: var(--brand); border: 1px solid var(--border); padding: 3px 9px; border-radius: 999px; background: var(--bg-soft); }

/* grouped menu — inline on desktop, hamburger dropdown on mobile (no-JS <details>) */
.menu, .menu-panel { display: contents; }
.menu-toggle { display: none; }
.menu-toggle::-webkit-details-marker { display: none; }
.menu-toggle::marker { content: ""; }
.navgroup { display: inline-flex; align-items: center; gap: 14px; border-left: 1px solid var(--border); padding-left: 14px; }
.navgroup-label { display: none; }
.nav-home { display: none; }
.menu-bars { display: inline-block; width: 16px; height: 2px; background: currentColor; position: relative; }
.menu-bars::before, .menu-bars::after { content: ""; position: absolute; left: 0; width: 16px; height: 2px; background: currentColor; }
.menu-bars::before { top: -5px; } .menu-bars::after { top: 5px; }

/* portal-wide search */
.search-btn { display: inline-flex; align-items: center; gap: 8px; background: var(--bg-soft); border: 1px solid var(--border); color: var(--muted); font: inherit; font-size: 13px; padding: 6px 10px; border-radius: 8px; cursor: pointer; }
.search-btn:hover { color: var(--text); border-color: var(--brand); }
.search-btn kbd, .search-hint kbd { font: 600 11px/1 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; background: var(--panel); border: 1px solid var(--border); border-radius: 5px; padding: 2px 5px; color: var(--muted); }
.search-modal { position: fixed; inset: 0; z-index: 50; background: rgba(5, 10, 15, 0.6); backdrop-filter: blur(3px); display: flex; align-items: flex-start; justify-content: center; padding: 12vh 16px 16px; }
.search-modal[hidden] { display: none; }
.search-box { width: 100%; max-width: 640px; background: var(--panel); border: 1px solid var(--border); border-radius: 14px; overflow: hidden; box-shadow: 0 24px 70px rgba(0, 0, 0, 0.55); }
.search-box input { width: 100%; background: var(--code-bg); color: var(--text); border: 0; border-bottom: 1px solid var(--border); padding: 16px 18px; font-size: 16px; outline: none; }
.search-results { max-height: 56vh; overflow: auto; }
.search-result { display: block; padding: 11px 18px; border-bottom: 1px solid var(--border); }
.search-result:last-child { border-bottom: 0; }
.search-result:hover, .search-result.active { background: var(--bg-soft); text-decoration: none; }
.sr-title { display: block; color: var(--text); font-weight: 600; font-size: 15px; }
.sr-where { color: var(--brand-2); font-weight: 500; }
.sr-snippet { display: block; color: var(--muted); font-size: 13px; margin-top: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.search-empty { padding: 18px; color: var(--muted); font-size: 14px; }
.search-hint { display: flex; gap: 6px; align-items: center; padding: 10px 18px; color: var(--muted); font-size: 12px; border-top: 1px solid var(--border); }
@media (max-width: 600px) { .search-btn kbd { display: none; } }

/* hero (home) */
.hero { padding: 80px 0 50px; }
.hero h1 { font-size: clamp(34px, 6vw, 56px); line-height: 1.05; margin: 16px 0 14px; letter-spacing: -1px; }
.hero h1 span { background: linear-gradient(120deg, var(--brand), var(--brand-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lede { font-size: clamp(17px, 2.4vw, 21px); color: var(--muted); max-width: 660px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; align-items: center; }
.btn { display: inline-block; padding: 12px 18px; border-radius: 10px; font-weight: 600; font-size: 15px; background: linear-gradient(135deg, var(--brand), var(--brand-2)); color: #06121a; }
.btn:hover { text-decoration: none; filter: brightness(1.06); }
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.copybar { margin-top: 24px; display: inline-flex; align-items: center; gap: 12px; background: var(--code-bg); border: 1px solid var(--border); border-radius: 10px; padding: 12px 16px; font-size: 15px; }
.copybar .dollar { color: var(--brand); user-select: none; }

/* cards */
.grid { display: grid; gap: 16px; }
.cards { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.two { grid-template-columns: 1fr 1fr; align-items: start; }
@media (max-width: 760px) { .two { grid-template-columns: 1fr; } }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; }
.card h3 { margin: 6px 0 6px; font-size: 17px; }
.card p { margin: 0; color: var(--muted); font-size: 14.5px; }
.ico { font-size: 20px; }

/* prose content */
.content { padding: 40px 0 10px; }
.content h1 { font-size: clamp(28px, 4vw, 40px); letter-spacing: -0.6px; margin: 0 0 8px; }
.content h2 { font-size: clamp(20px, 3vw, 27px); letter-spacing: -0.3px; margin: 38px 0 8px; padding-top: 14px; border-top: 1px solid var(--border); }
.content h3 { font-size: 17px; margin: 22px 0 6px; }
.content p { color: #d3deea; }
.content .sub { color: var(--muted); margin-top: 0; }
.content ul, .content ol { color: #d3deea; padding-left: 22px; }
.content li { margin: 4px 0; }
.content a { font-weight: 500; }
.content > section { padding: 8px 0; }

pre { background: var(--code-bg); border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px; overflow-x: auto; font-size: 14px; margin: 14px 0; line-height: 1.5; }
:not(pre) > code { background: var(--bg-soft); border: 1px solid var(--border); border-radius: 6px; padding: 1px 6px; font-size: 0.9em; color: #cfe6e2; }
pre code { background: none; border: 0; padding: 0; color: var(--text); }

table { width: 100%; border-collapse: collapse; font-size: 14.5px; margin: 12px 0; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 600; }
td code { white-space: nowrap; color: var(--brand); }
td.desc { color: var(--muted); }
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 12px 0; }
.table-wrap > table { margin: 0; min-width: 480px; }

.counts { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 12px; margin: 16px 0 8px; }
.counts .n { font-size: 30px; font-weight: 700; color: var(--brand); }
.counts .l { color: var(--muted); font-size: 13px; }
.counts .card { padding: 14px 16px; }

details { border: 1px solid var(--border); border-radius: 10px; padding: 6px 14px; margin: 12px 0; background: var(--bg-soft); }
summary { cursor: pointer; padding: 8px 0; font-weight: 600; }

.note { color: var(--muted); font-size: 13.5px; }
.tag { font-size: 11px; color: var(--brand); border: 1px solid var(--border); border-radius: 999px; padding: 1px 8px; margin-left: 8px; }

footer { border-top: 1px solid var(--border); padding: 34px 0 50px; color: var(--muted); margin-top: 50px; }
.footlinks { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-bottom: 20px; }
.footlinks a { color: var(--muted); font-size: 14px; }
.footlinks a:hover { color: var(--text); text-decoration: none; }
.mission { background: var(--bg-soft); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; font-size: 14px; color: var(--muted); }
.gen { color: var(--brand); }

/* ---------- docs UX: layout + TOC ---------- */
.skip { position: absolute; left: -9999px; top: 0; background: var(--brand); color: #06121a; padding: 8px 14px; border-radius: 8px; z-index: 20; }
.skip:focus { left: 12px; top: 10px; }
.layout { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 44px; }
.doc { min-width: 0; }
aside.toc { width: 210px; }
aside.toc:empty { display: none; }
.toc-inner { position: sticky; top: 84px; border-left: 1px solid var(--border); padding: 4px 0 4px 14px; max-height: calc(100vh - 120px); overflow: auto; }
.toc-title { text-transform: uppercase; letter-spacing: 0.08em; font-size: 11px; color: var(--muted); margin: 0 0 8px; }
.toc-inner a { display: block; color: var(--muted); font-size: 13.5px; padding: 4px 0; line-height: 1.3; }
.toc-inner a:hover { color: var(--text); text-decoration: none; }
.toc-inner a.lvl-3 { padding-left: 12px; font-size: 13px; }
@media (max-width: 900px) { .layout { grid-template-columns: 1fr; } aside.toc { display: none; } }

/* mobile on-page TOC (shown only where the sidebar TOC is hidden) */
.toc-mobile { display: none; }
.toc-mobile > summary { font-weight: 600; }
.toc-mobile nav { display: flex; flex-direction: column; gap: 2px; padding: 6px 0 2px; }
.toc-mobile a { color: var(--muted); font-size: 14px; padding: 4px 0; line-height: 1.3; }
.toc-mobile a:hover { color: var(--text); text-decoration: none; }
.toc-mobile a.lvl-3 { padding-left: 14px; font-size: 13px; }
@media (max-width: 900px) { .toc-mobile { display: block; } }

/* "See also" cross-links */
.seealso { margin-top: 44px; }
.seealso h2 { font-size: 18px; border-top: 1px solid var(--border); padding-top: 18px; margin: 0 0 14px; letter-spacing: 0; }
.seealso-card { display: block; }
.seealso-card:hover { text-decoration: none; border-color: var(--brand); }
.seealso-title { display: block; color: var(--text); font-weight: 600; font-size: 15px; margin-bottom: 4px; }
.seealso-card .note { display: block; }

/* anchored headings */
.content h2, .content h3 { scroll-margin-top: 80px; }
.anchor { color: var(--border); text-decoration: none; margin-left: 8px; font-weight: 400; opacity: 0; transition: opacity 0.12s; }
.content h2:hover .anchor, .content h3:hover .anchor, .anchor:focus { opacity: 1; }
.anchor:hover { color: var(--brand); text-decoration: none; }
@media (hover: none) { .content h2 .anchor, .content h3 .anchor { opacity: 0.4; } }

/* ---------- copy buttons ---------- */
pre { position: relative; }
pre .copy, .btn-copy {
  font: 600 12px/1 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--muted); background: var(--panel); border: 1px solid var(--border);
  border-radius: 7px; padding: 6px 10px; cursor: pointer;
}
pre .copy { position: absolute; top: 9px; right: 9px; opacity: 0; transition: opacity 0.12s, color 0.12s; }
pre:hover .copy, pre .copy:focus { opacity: 1; }
pre .copy:hover, .btn-copy:hover { color: var(--text); border-color: var(--brand); }
.copied { color: var(--brand) !important; border-color: var(--brand) !important; }

/* ---------- filter bar ---------- */
.docsearch { display: flex; align-items: center; gap: 12px; margin: 18px 0 22px; }
.docsearch input {
  flex: 1; max-width: 520px; background: var(--code-bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 10px; padding: 11px 14px; font-size: 15px; outline: none;
}
.docsearch input:focus { border-color: var(--brand); }
.docsearch .count { color: var(--muted); font-size: 13px; white-space: nowrap; }
[data-search][hidden] { display: none; }

/* ---------- command explorer ---------- */
details.globals { margin: 4px 0 8px; }
.cmd-list { display: grid; gap: 14px; }
.cmd { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; }
.cmd h3 { margin: 0; font-size: 16px; }
.cmd h4 { margin: 0; font-size: 14.5px; }
.cmd-head { display: flex; align-items: center; gap: 12px; }
.cmd-head h3, .cmd-head h4 { flex: 1; }
.cmd > p { color: var(--muted); margin: 8px 0; }
.cmd .sub { border-top: 1px solid var(--border); margin-top: 12px; padding-top: 12px; }
.cmd .sub p { color: var(--muted); margin: 6px 0; font-size: 14px; }
.cmd table.opts { margin: 8px 0 2px; }
.tag { font-size: 11px; color: var(--brand); border: 1px solid var(--border); border-radius: 999px; padding: 1px 8px; margin-left: 8px; white-space: nowrap; }

/* sensitivity badges */
.sens { font-size: 12px; border-radius: 999px; padding: 1px 9px; border: 1px solid var(--border); }
.sens-confidential { color: #f2a6a6; border-color: #5a3a3a; }
.sens-sensitive { color: var(--accent); border-color: #5a4a30; }
.sens-public { color: var(--brand); }

/* ---------- syntax highlighting (highlight.js tokens) ---------- */
.hljs-comment, .hljs-quote { color: #6f8597; font-style: italic; }
.hljs-keyword, .hljs-selector-tag, .hljs-built_in, .hljs-name, .hljs-tag { color: var(--brand); }
.hljs-string, .hljs-attr, .hljs-template-variable, .hljs-addition, .hljs-regexp { color: var(--accent); }
.hljs-title, .hljs-section, .hljs-title.function_, .hljs-type, .hljs-class .hljs-title { color: var(--brand-2); }
.hljs-number, .hljs-literal, .hljs-variable, .hljs-symbol, .hljs-bullet { color: #d8a0e0; }
.hljs-meta, .hljs-comment.hljs-doctag { color: var(--muted); }
.hljs-emphasis { font-style: italic; }
.hljs-strong { font-weight: 700; }

/* ---------- responsive: hamburger menu + small screens ---------- */
@media (max-width: 900px) {
  .menu { display: block; position: relative; }
  .menu-panel { display: none; }
  .menu[open] .menu-panel { display: block; }
  .menu-toggle {
    display: inline-flex; align-items: center; gap: 8px; list-style: none; cursor: pointer;
    background: var(--bg-soft); border: 1px solid var(--border); border-radius: 8px;
    padding: 9px 12px; color: var(--text); font-size: 14px;
  }
  .menu[open] .menu-toggle { border-color: var(--brand); }
  .menu-panel {
    position: absolute; top: calc(100% + 12px); right: 0; width: min(280px, calc(100vw - 24px));
    background: var(--panel); border: 1px solid var(--border); border-radius: 12px;
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.55); padding: 8px; z-index: 40;
  }
  .menu-panel a, .nav-home { display: block; padding: 11px 12px; border-radius: 8px; color: var(--text); font-size: 15px; }
  .menu-panel a:hover, .menu-panel a.active { background: var(--bg-soft); text-decoration: none; }
  .navgroup { display: block; border-left: 0; padding-left: 0; border-top: 1px solid var(--border); margin-top: 6px; padding-top: 6px; }
  .navgroup-label { display: block; text-transform: uppercase; letter-spacing: 0.08em; font-size: 11px; color: var(--muted); padding: 8px 12px 2px; }
}
@media (max-width: 520px) {
  .wrap { padding: 0 16px; }
  .pill { display: none; }
  .search-btn { padding: 8px 10px; }
}