:root {
  --bg: #100b14;
  --bg2: #181125;
  --panel: rgba(24, 18, 38, 0.94);
  --panel2: rgba(32, 24, 48, 0.95);
  --text: #e6edf3;
  --muted: #b7c3d1;
  --line: #51397d;
  --accent: #7b52b3;
  --accent2: #9a6fe0;
  --ok: #84d39f;
  --warn: #ffc77a;
  --code: #0f0d1f71;
  --codeText: #e7cb2bcc;
  --chip: rgba(143, 114, 221, 0.12);
  --shadow: 0 12px 34px rgba(0, 0, 0, 0.28);
  --border: rgba(83, 40, 185, 0.705);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  height: 100vh;
  overflow: hidden;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(1000px 520px at 5% -10%, rgba(130, 114, 221, 0.12), transparent 60%),
    radial-gradient(900px 480px at 100% 0%, rgba(82, 146, 201, 0.10), transparent 55%),
    linear-gradient(180deg, var(--bg2), var(--bg));
}

.app-shell {
  display: grid;
  grid-template-columns: 300px 1fr;
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow: hidden;
  padding: 10px;
  border-right: 1px solid var(--line);
  background: rgba(24, 16, 48, 0.86);
  backdrop-filter: blur(8px);
}

.brand {
  color: #cfcfcf;
  border: 1px solid #6731a520;
  background: linear-gradient(180deg, rgba(183,136,255,0.16), rgba(119, 111, 224, 0.08));
  padding: 10px 12px;
  box-shadow: var(--shadow);
}

.brand h1 {
  margin: 0 0 6px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 24px;
}

.brand p {
  margin: 0;
  font-size: 12px;
  line-height: 1.4;
  color: var(--muted);
}

.note {
  font-size: 12px;
  color: var(--muted);
  margin: 0;
}

.nav {
  flex: 1;
  min-height: 0;
  overflow: auto;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.35);
}

.nav a {
  display: block;
  padding: 9px 12px;
  color: var(--muted);
  text-decoration: none;
  border-left: 3px solid transparent;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 16px;
}

.nav a:hover {
  background: rgba(129, 81, 218, 0.12);
  color: var(--text);
  border-left-color: var(--accent);
}

.nav-group {
  border-top: 1px solid rgba(86, 57, 125, 0.45);
}

.nav-group:first-child {
  border-top: none;
}

.nav-group-toggle {
  display: block;
  width: 100%;
  background: rgba(152, 114, 221, 0.219);
  color: var(--accent2);
  border: none;
  border-left: 3px solid transparent;
  text-align: left;
  padding: 2px 8px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 14px;
  cursor: pointer;
}

.nav-group-toggle:hover {
  background: rgba(155, 114, 221, 0.281);
  border-left-color: var(--accent);
}

.nav-group-toggle .chev,
.nav-subgroup-toggle .chev {
  width: 24px;
  display: inline-block;
  font-size: 16px;
}

.nav-sub {
  display: none;
  padding: 0 0 6px;
}

.nav-group.open > .nav-sub {
  display: block;
}

.nav-sub a {
  padding-left: 24px;
  font-size: 12px;
}

/* second level */
.nav-subgroup-wrap {
  border-top: 1px dotted rgba(154, 111, 224, 0.25);
}

.nav-subgroup-toggle {
  display: block;
  width: 100%;
  background: rgba(130, 114, 221, 0.10);
  color: var(--muted);
  border: none;
  border-left: 3px solid transparent;
  text-align: left;
  padding: 7px 12px 3px 20px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  cursor: pointer;
}

.nav-subgroup-toggle:hover {
  background: rgba(130, 114, 221, 0.18);
  color: var(--text);
  border-left-color: var(--accent2);
}

.nav-subgroup {
  display: none;
}

.nav-subgroup-wrap.open > .nav-subgroup {
  display: block;
}

.nav-subgroup a {
  display: block;
  padding: 7px 12px 7px 38px;
  font-size: 12px;
}

.sidebar-footer {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.4;
  flex: 0 0 auto;
}

.main-pane {
  display: flex;
  flex-direction: column;
  min-width: 0;
  height: 100vh;
}


.nav-search-wrap {
  margin: 0 0 10px 0;
}

.nav-search {
  width: 100%;
  display: block;
  padding: 8px 10px;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.35);
  color: var(--text);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
  outline: none;
}

.nav-search:focus {
  border-color: var(--accent2);
  background: rgba(130, 114, 221, 0.12);
}

.nav-search::placeholder {
  color: var(--muted);
}

.nav-hidden {
  display: none !important;
}






.toolbar {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 12px 18px;
  border-bottom: 2px solid var(--line);
  background: rgba(52, 43, 95, 0.72);
}

.toolbar .crumb {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 18px;
  color: var(--muted);
}

.content-scroll {
  overflow: auto;
  height: 100%;
}

#contentHost {
  padding: 10px 10px 10px 20px;
  max-width: 1180px;
}

.page-link.active {
  background: rgba(114, 176, 221, 0.12);
  color: var(--text);
  border-left-color: var(--accent);
}

.hero,
.section {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--panel2), var(--panel));
  box-shadow: var(--shadow);
}

.hero {
  padding: 22px 24px;
  margin-bottom: 18px;
}

.hero h2 {
  margin: 0 0 10px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 30px;
}

.hero p {
  margin: 0;
  color: var(--muted);
  max-width: 78ch;
  line-height: 1.55;
}

.section {
  padding: 22px 24px;
  margin: 18px 0;
}

.section h2 {
  margin: 0 0 14px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 20px;
}

.section h3 {
  margin: 24px 0 10px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 16px;
  color: var(--accent2);
}

p,
li {
  line-height: 1.56;
  color: var(--text);
}

.muted {
  color: var(--muted);
}

.callout {
  border: 4px solid var(--accent);
  padding: 12px 14px;
  background: rgba(130, 114, 221, 0.1);
  margin: 12px 0;
}

.callout.warn {
  border-left-color: var(--warn);
  background: rgba(255, 199, 122, 0.10);
}

.blurb {
  border: 1px dotted var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  white-space: pre-line;
  padding: 12px 14px;
  background: rgba(130, 114, 221, 0.1);
  margin: 12px 0;
  font-size: 13px;
}

.democode {
  border: 1px solid rgba(241, 226, 21, 0.596);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
  white-space: pre-wrap;
  padding: 12px 14px;
  background: rgba(53, 27, 3, 0.1);
  color: rgb(238, 209, 43);
  margin: 12px 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 14px;
}

.mini {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  padding: 14px;
  text-align: justify;
}

.mini strong {
  display: block;
  margin-bottom: 6px;
}

.chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 6px 0 0;
}

.chip {
  display: inline-block;
  padding: 4px 8px;
  border: 1px solid var(--line);
  background: var(--chip);
  font-size: 12px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.func {
  border: 1px solid rgba(154, 110, 205, 0.35);
  background: rgba(74, 53, 117, 0.685);
  padding: 16px 16px 14px;
  margin: 14px 0;
  font-size: 14px;
}

.sig {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  background: rgba(202, 95, 95, 0.25);
  color: var(--codeText);
  padding: 6px;
  border: 1px solid rgba(202, 95, 95, 0.25);
  display: block;
  overflow: auto;
  white-space: pre-wrap;
}

.meta {
  margin: 10px 0 6px;
  color: var(--muted);
  font-size: 13px;
}

.func p {
  margin: 8px 0;
}

.description {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 14px;
}

ul {
  padding-left: 20px;
}

code,
pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 14px;
}

pre {
  background: var(--code);
  color: var(--codeText);
  padding: 8px;
  border: 2px solid rgba(177, 162, 211, 0.295);
  overflow: auto;
  line-height: 1.44;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 10px 0 0;
}

th,
td {
  border: 1px solid var(--line);
  padding: 10px 12px;
  vertical-align: top;
  text-align: left;
}

th {
  background: rgba(114, 176, 221, 0.14);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
}

.small {
  font-size: 13px;
  color: var(--muted);
}

.footer {
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.loading {
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.breadcrumbs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 0 0 12px;
  font-size: 12px;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

@media (max-width:980px) {
  body {
    height: auto;
    overflow: auto;
  }

  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: relative;
    height: auto;
  }

  .sidebar .nav {
    max-height: none;
  }

  .main-pane {
    height: auto;
  }

  #contentHost {
    padding: 18px;
  }
}