/* ========================================================================
   neo4j-agent-memory TCK — Documentation Stylesheet
   Modern developer docs: dark-first, light via prefers-color-scheme.
   ======================================================================== */

@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap");

/* -------------------------- Design tokens -------------------------- */

:root {
  /* Palette (dark) */
  --bg:              #0b0d10;
  --bg-raised:       #12151a;
  --bg-surface:      #161a20;
  --bg-code:         #0d1017;
  --bg-code-inline:  rgba(99, 139, 255, 0.12);
  --bg-hover:        rgba(255, 255, 255, 0.035);
  --bg-selection:    rgba(99, 139, 255, 0.28);

  --text:            #d4dae3;
  --text-strong:     #f0f3f7;
  --text-muted:      #8b93a1;
  --text-faint:      #5c6472;

  --accent:          #4c8cff;
  --accent-hover:    #6ba0ff;
  --accent-subtle:   rgba(76, 140, 255, 0.14);

  --border:          #23272f;
  --border-strong:   #2d323b;

  --note:            #58a6ff;
  --tip:             #3fb950;
  --important:       #bc8cff;
  --warning:         #d29922;
  --caution:         #f85149;

  /* Typography */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", SFMono-Regular, ui-monospace, Menlo, Consolas, "Liberation Mono", monospace;

  /* Layout */
  --toc-width: 280px;
  --content-max: 960px;
  --nav-height: 56px;
  --radius: 8px;
  --radius-sm: 6px;
  --radius-lg: 12px;

  /* Motion */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light mode — flipped tokens. */
@media (prefers-color-scheme: light) {
  :root {
    --bg:              #ffffff;
    --bg-raised:       #fafbfc;
    --bg-surface:      #f6f8fa;
    --bg-code:         #f6f8fa;
    --bg-code-inline:  rgba(76, 140, 255, 0.10);
    --bg-hover:        rgba(0, 0, 0, 0.025);
    --bg-selection:    rgba(76, 140, 255, 0.18);

    --text:            #1f2328;
    --text-strong:     #0a0c10;
    --text-muted:      #59636e;
    --text-faint:      #8c959f;

    --accent:          #0969da;
    --accent-hover:    #0550ae;
    --accent-subtle:   rgba(9, 105, 218, 0.10);

    --border:          #d1d9e0;
    --border-strong:   #b8c0ca;
  }
}

/* -------------------------- Base -------------------------- */

*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-height) + 16px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  font-feature-settings: "cv11", "ss01", "ss03";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

::selection {
  background: var(--bg-selection);
  color: var(--text-strong);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 3px;
}

/* Global scrollbar (WebKit) */
::-webkit-scrollbar       { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 10px; border: 2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: var(--text-faint); }

/* -------------------------- Links -------------------------- */

a {
  color: var(--accent);
  text-decoration: none;
  text-decoration-color: transparent;
  text-underline-offset: 3px;
  transition: color 120ms var(--ease), text-decoration-color 120ms var(--ease);
}
a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
  text-decoration-color: currentColor;
  text-decoration-thickness: 1px;
}

/* -------------------------- Site nav (global) -------------------------- */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  background: color-mix(in srgb, var(--bg-raised) 88%, transparent);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.site-nav-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 100%;
  padding: 0 24px;
  max-width: 1400px;
  margin: 0 auto;
}
.site-nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 14.5px;
  color: var(--text-strong);
  text-decoration: none;
  letter-spacing: -0.01em;
  white-space: nowrap;
  flex-shrink: 0;
}
.site-nav-brand:hover { color: var(--text-strong); text-decoration: none; }
.site-nav-brand-mark {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background:
    radial-gradient(circle at 30% 30%, #6ba0ff 0%, transparent 55%),
    radial-gradient(circle at 70% 70%, #3fb950 0%, transparent 55%),
    linear-gradient(135deg, var(--accent) 0%, #2b5fd9 100%);
  box-shadow: 0 1px 0 rgba(255,255,255,0.08) inset, 0 0 0 1px rgba(255,255,255,0.06);
}
.site-nav-brand-accent {
  color: var(--accent);
  font-weight: 700;
}
.site-nav-links {
  display: flex;
  gap: 4px;
  margin-left: 8px;
  flex: 1;
  min-width: 0;
  overflow-x: auto;
  scrollbar-width: none;
}
.site-nav-links::-webkit-scrollbar { display: none; }
.site-nav-links a {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: 6px;
  white-space: nowrap;
  transition: color 120ms var(--ease), background 120ms var(--ease);
}
.site-nav-links a:hover {
  color: var(--text-strong);
  background: var(--bg-hover);
  text-decoration: none;
}
.site-nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.site-nav-github {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  color: var(--text-muted);
  border-radius: 6px;
  transition: color 120ms var(--ease), background 120ms var(--ease);
}
.site-nav-github:hover {
  color: var(--text-strong);
  background: var(--bg-hover);
  text-decoration: none;
}

/* -------------------------- Header -------------------------- */

#header {
  padding: 32px 48px 24px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, var(--bg-raised) 0%, var(--bg) 100%);
}
#header h1 {
  margin: 0 0 6px;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-strong);
  line-height: 1.25;
}
#header .details {
  color: var(--text-muted);
  font-size: 13px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
#header .details br { display: none; }
#header .details span { display: inline-flex; align-items: center; }
#header .details span::before {
  content: "";
  display: inline-block;
  width: 3px; height: 3px;
  background: var(--text-faint);
  border-radius: 50%;
  margin-right: 12px;
}
#header .details > span:first-child::before { display: none; }

/* -------------------------- Content shell -------------------------- */

#content {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 40px 48px 64px;
}

/* -------------------------- TOC (inline, default) -------------------------- */

#toc.toc {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin: 24px 0 32px;
}
#toctitle {
  margin: 0 0 10px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}
#toc ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
#toc ul ul { padding-left: 14px; margin-top: 2px; }
#toc li { margin: 2px 0; }
#toc a {
  display: block;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 13.5px;
  line-height: 1.45;
  color: var(--text-muted);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color 120ms var(--ease), background 120ms var(--ease), border-color 120ms var(--ease);
}
#toc a:hover {
  color: var(--text-strong);
  background: var(--bg-hover);
  text-decoration: none;
}
#toc a:target,
#toc a:focus-visible {
  color: var(--accent);
  border-left-color: var(--accent);
}

/* -------------------------- TOC (fixed left, index page) -------------------------- */

body.toc2 {
  padding-left: var(--toc-width);
}
body.toc2 #toc.toc2 {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  bottom: 0;
  width: var(--toc-width);
  height: calc(100vh - var(--nav-height));
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 24px 20px 32px;
  margin: 0;
  background: var(--bg-raised);
  border: none;
  border-right: 1px solid var(--border);
  border-radius: 0;
  z-index: 10;
}
body.toc2 #toc.toc2::-webkit-scrollbar-thumb { border-color: var(--bg-raised); }
body.toc2 #header,
body.toc2 #content,
body.toc2 #footer { margin-left: 0; }
body.toc2 #toc.toc2 #toctitle {
  font-size: 11px;
  padding: 0 8px 8px;
  margin-bottom: 6px;
  border-bottom: 1px solid var(--border);
}

/* toc-right variant (kept simple — same as default inline) */
body.toc-right #toc { /* noop */ }

/* -------------------------- Headings -------------------------- */

h1, h2, h3, h4, h5, h6 {
  color: var(--text-strong);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.3;
  scroll-margin-top: 16px;
}
h1 { font-size: 2rem;    margin: 1.5em 0 0.5em; letter-spacing: -0.025em; }
h2 {
  font-size: 1.5rem;
  margin: 2.2em 0 0.7em;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
  letter-spacing: -0.02em;
}
h3 { font-size: 1.2rem;  margin: 1.8em 0 0.5em; }
h4 {
  font-size: 0.85rem;
  margin: 1.6em 0 0.4em;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}
h5 { font-size: 1rem;    margin: 1.4em 0 0.4em; }
h6 { font-size: 0.95rem; margin: 1.2em 0 0.4em; color: var(--text-muted); }

/* Anchor pilcrows on section headings */
h2 > a.link,
h3 > a.link,
h4 > a.link,
h5 > a.link,
h6 > a.link {
  color: inherit;
}
h2 > a.anchor,
h3 > a.anchor,
h4 > a.anchor,
h5 > a.anchor,
h6 > a.anchor {
  position: absolute;
  margin-left: -1em;
  padding-right: 0.5em;
  opacity: 0;
  color: var(--text-faint);
  font-weight: 400;
  text-decoration: none;
  transition: opacity 120ms var(--ease);
}
h2 > a.anchor::before,
h3 > a.anchor::before,
h4 > a.anchor::before,
h5 > a.anchor::before,
h6 > a.anchor::before {
  content: "#";
}
h2:hover > a.anchor,
h3:hover > a.anchor,
h4:hover > a.anchor,
h5:hover > a.anchor,
h6:hover > a.anchor { opacity: 1; }

.sect1 > h2,
.sect2 > h3,
.sect3 > h4 { position: relative; }

/* -------------------------- Paragraphs / text -------------------------- */

p { margin: 0.9em 0; }
p:first-child { margin-top: 0; }
p:last-child  { margin-bottom: 0; }

strong, b { color: var(--text-strong); font-weight: 600; }
em, i     { font-style: italic; }

small { font-size: 0.85em; color: var(--text-muted); }

/* -------------------------- Code -------------------------- */

code, kbd, samp, pre {
  font-family: var(--font-mono);
  font-variant-ligatures: none;
}

/* Inline code */
:not(pre) > code {
  font-size: 0.88em;
  padding: 0.15em 0.42em;
  background: var(--bg-code-inline);
  color: var(--text-strong);
  border-radius: 4px;
  border: 1px solid transparent;
  white-space: break-spaces;
}

a code { color: inherit; }

/* kbd */
kbd {
  display: inline-block;
  padding: 2px 6px;
  font-size: 0.8em;
  line-height: 1;
  color: var(--text-strong);
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-bottom-width: 2px;
  border-radius: 4px;
  vertical-align: middle;
}

/* Block code (listingblock / literalblock) */
.listingblock,
.literalblock {
  margin: 1.25em 0;
}
.listingblock > .title,
.literalblock > .title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}
.listingblock > .content,
.literalblock > .content {
  position: relative;
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

pre,
pre.rouge,
pre.highlight {
  margin: 0;
  padding: 16px 18px;
  background: transparent;
  border: none;
  overflow-x: auto;
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--text);
  tab-size: 2;
}
pre > code {
  background: transparent;
  padding: 0;
  border: none;
  color: inherit;
  font-size: inherit;
}

/* Language label when data-lang is present */
.listingblock pre[class*="rouge"] > code[data-lang]::before,
.listingblock pre[class*="highlight"] > code[data-lang]::before {
  content: attr(data-lang);
  position: absolute;
  top: 8px;
  right: 12px;
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-faint);
  background: var(--bg-raised);
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  pointer-events: none;
}

/* -------------------------- Tables -------------------------- */

table.tableblock,
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25em 0;
  font-size: 14px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

th, td, .tableblock {
  text-align: left;
  vertical-align: top;
}

thead th,
table.tableblock > thead > tr > th {
  background: var(--bg-surface);
  color: var(--text-strong);
  font-weight: 600;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-strong);
  font-size: 13px;
}

tbody tr + tr td,
table.tableblock tr + tr td { border-top: 1px solid var(--border); }
tbody tr:nth-child(even) td { background: var(--bg-hover); }
tbody tr:hover td          { background: var(--accent-subtle); }

td, table.tableblock td {
  padding: 10px 14px;
  color: var(--text);
}

td p.tableblock { margin: 0; line-height: 1.55; }
td p.tableblock + p.tableblock { margin-top: 0.5em; }

/* Tight first col (labels) when the colgroup implies narrow columns */
.tableblock col[style*="16.6"] + col,
.tableblock col[style*="25%"] + col { /* noop, kept for future */ }

/* -------------------------- Admonitions -------------------------- */

.admonitionblock {
  margin: 1.25em 0;
  border-radius: var(--radius);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  overflow: hidden;
}
.admonitionblock > table {
  width: 100%;
  border: none;
  border-radius: 0;
  background: transparent;
  margin: 0;
}
.admonitionblock > table > tbody > tr > td,
.admonitionblock > table > tr > td {
  padding: 14px 16px;
  border: none;
  background: transparent;
  vertical-align: top;
}
.admonitionblock tr:hover td { background: transparent; }

.admonitionblock td.icon {
  width: 84px;
  padding-right: 0;
}
.admonitionblock td.icon .title {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--accent-subtle);
  color: var(--accent);
}
.admonitionblock td.icon .title::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
}
.admonitionblock td.content {
  color: var(--text);
  padding-left: 4px;
}
.admonitionblock td.content > :first-child { margin-top: 0; }
.admonitionblock td.content > :last-child  { margin-bottom: 0; }

/* Type-specific accents */
.admonitionblock.note      { border-left: 3px solid var(--note); }
.admonitionblock.note      td.icon .title { color: var(--note);      background: rgba(88, 166, 255, 0.14); }
.admonitionblock.tip       { border-left: 3px solid var(--tip); }
.admonitionblock.tip       td.icon .title { color: var(--tip);       background: rgba(63, 185, 80, 0.14); }
.admonitionblock.important { border-left: 3px solid var(--important); }
.admonitionblock.important td.icon .title { color: var(--important); background: rgba(188, 140, 255, 0.14); }
.admonitionblock.warning   { border-left: 3px solid var(--warning); }
.admonitionblock.warning   td.icon .title { color: var(--warning);   background: rgba(210, 153, 34, 0.14); }
.admonitionblock.caution   { border-left: 3px solid var(--caution); }
.admonitionblock.caution   td.icon .title { color: var(--caution);   background: rgba(248, 81, 73, 0.14); }

/* -------------------------- Lists -------------------------- */

ul, ol {
  padding-left: 24px;
  margin: 0.8em 0;
}
li { margin: 4px 0; line-height: 1.6; }
li > p:first-child { margin-top: 0; }
li > p:last-child  { margin-bottom: 0; }

/* Nested list density */
li ul, li ol { margin: 4px 0; }

.ulist ul { list-style-type: disc; }
.ulist ul ul { list-style-type: circle; }
.ulist ul ul ul { list-style-type: square; }

/* Definition lists */
.dlist > dl > dt {
  font-weight: 600;
  color: var(--text-strong);
  margin-top: 1em;
}
.dlist > dl > dd { margin: 0.25em 0 0 0; padding-left: 1em; border-left: 2px solid var(--border); }

/* -------------------------- Block quotes -------------------------- */

.quoteblock {
  margin: 1.5em 0;
  padding: 0 0 0 20px;
  border-left: 3px solid var(--accent);
  color: var(--text-muted);
}
.quoteblock blockquote { margin: 0; padding: 0; }
.quoteblock .attribution {
  margin-top: 8px;
  font-size: 13px;
  color: var(--text-faint);
}
.quoteblock .attribution::before { content: "— "; }

/* -------------------------- Example blocks / sidebars -------------------------- */

.exampleblock > .title,
.sidebarblock > .content > .title {
  font-weight: 600;
  color: var(--text-strong);
  margin-bottom: 8px;
}
.exampleblock > .content,
.sidebarblock > .content {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
}

/* -------------------------- Horizontal rule / Details -------------------------- */

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5em 0;
}

details {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  margin: 1em 0;
}
details > summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--text-strong);
  list-style: none;
}
details > summary::-webkit-details-marker { display: none; }
details > summary::before {
  content: "▸";
  display: inline-block;
  margin-right: 8px;
  color: var(--text-muted);
  transition: transform 120ms var(--ease);
}
details[open] > summary::before { transform: rotate(90deg); }

/* -------------------------- Images / figures -------------------------- */

.imageblock,
.image {
  margin: 1.5em 0;
  text-align: center;
}
.imageblock img,
.image img,
img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
}
.imageblock .title,
.image .title {
  color: var(--text-muted);
  font-size: 13px;
  margin-top: 8px;
}

/* -------------------------- Footer -------------------------- */

#footer {
  padding: 24px 48px;
  border-top: 1px solid var(--border);
  color: var(--text-faint);
  font-size: 12px;
  text-align: center;
  background: var(--bg-raised);
}
#footer-text br { display: block; margin: 4px 0; content: ""; }

/* -------------------------- Rouge overrides
   The generated rouge stylesheet loads AFTER this file, so we rely on
   rouge-style=github.dark for colors. These rules only neutralize its
   background/padding so it sits flush inside our .content wrapper.
   ------------------------------------------------------------------- */

pre.rouge,
pre.rouge.highlight {
  background: transparent !important;
}
pre.rouge table { border: none; margin: 0; background: transparent; }
pre.rouge table td { padding: 0 8px; border: none; background: transparent; }
pre.rouge table tr:hover td { background: transparent; }
pre.rouge table pre { margin: 0; padding: 0; background: transparent; }

/* -------------------------- Responsive -------------------------- */

@media (max-width: 1024px) {
  :root { --toc-width: 240px; }
  #content { padding: 32px 36px 56px; }
  #header  { padding: 28px 36px 22px; }
}

@media (max-width: 820px) {
  body.toc2 { padding-left: 0; }
  body.toc2 #toc.toc2 {
    position: static;
    top: auto;
    bottom: auto;
    width: 100%;
    height: auto;
    max-height: 50vh;
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 16px 20px;
  }
  .site-nav-inner  { padding: 0 16px; gap: 16px; }
  .site-nav-brand-text { display: none; }
  #content { padding: 24px 20px 48px; }
  #header  { padding: 24px 20px 18px; }
  #footer  { padding: 20px; }
  h1 { font-size: 1.7rem; }
  h2 { font-size: 1.3rem; }
  h3 { font-size: 1.1rem; }
  table, .tableblock { font-size: 13px; }
  pre { font-size: 12.5px; }
}