/* ==========================================================================
   Lynx Api docs — monochrome theme, light + dark (2026-09-13 v2)
   Tokens mirror api.lxlynx.com (light #fff/#0a0a0a · dark #1e1e1e/#f3f3f3).
   Pure black/white/gray — zero accent. Logo stroke flips with scheme.
   Public Sans variable (100-900) · JetBrains Mono
   ========================================================================== */

@font-face {
  font-family: "Public Sans";
  font-style: normal;
  font-weight: 100 900;
  src: url("../fonts/public-sans-var.woff2") format("woff2");
  font-display: swap;
}
@font-face { font-family: "JetBrains Mono"; font-weight: 400; src: url("../fonts/jetbrains-mono-400.woff2") format("woff2"); font-display: swap; }
@font-face { font-family: "JetBrains Mono"; font-weight: 600; src: url("../fonts/jetbrains-mono-600.woff2") format("woff2"); font-display: swap; }

/* ---- tokens: LIGHT (default) ---------------------------------------- */
:root,
[data-md-color-scheme="default"] {
  --lx-ink: #0a0a0a;
  --lx-sub: #404040;
  --lx-faint: #606060;
  --lx-dim: #a3a3a3;
  --lx-bg: #ffffff;
  --lx-mute: #f5f5f5;
  --lx-line: rgba(10, 10, 10, 0.08);
  --lx-line-strong: rgba(10, 10, 10, 0.14);
  --lx-logo-stroke: #0a0a0a;
  --lx-header-bg: rgba(255, 255, 255, 0.85);
  --lx-header-bg-shadow: rgba(255, 255, 255, 0.92);
  --lx-scroll-track: #ffffff;
  --lx-scroll-thumb: #d4d4d4;

  --md-primary-fg-color: #0a0a0a;
  --md-primary-fg-color--light: #2a2a2a;
  --md-primary-fg-color--dark: #0a0a0a;
  --md-primary-bg-color: #ffffff;
  --md-primary-bg-color--light: #ffffff;
  --md-accent-fg-color: #0a0a0a;
  --md-accent-fg-color--transparent: rgba(10, 10, 10, 0.1);

  --md-default-bg-color: #ffffff;
  --md-default-bg-color--light: #fafafa;
  --md-default-bg-color--lighter: #f5f5f5;
  --md-default-bg-color--lightest: #eee;
  --md-default-fg-color: #0a0a0a;
  --md-default-fg-color--light: #404040;
  --md-default-fg-color--lighter: #606060;
  --md-default-fg-color--lightest: #a3a3a3;

  --md-typeset-color: #0a0a0a;
  --md-typeset-a-color: #0a0a0a;
  --md-typeset-mark-color: rgba(10, 10, 10, 0.18);
  --md-typeset-kbd-color: #ffffff;
  --md-typeset-kbd-accent-color: #0a0a0a;
  --md-typeset-kbd-border-color: #d4d4d4;
  --md-typeset-table-color: rgba(10, 10, 10, 0.08);
  --md-typeset-table-color--light: rgba(10, 10, 10, 0.04);

  --md-code-bg-color: #f5f5f5;
  --md-code-fg-color: #0a0a0a;
  --md-code-hl-color: rgba(10, 10, 10, 0.1);
  --md-code-hl-number-color: #404040;
  --md-code-hl-special-color: #606060;
  --md-code-hl-function-color: #404040;
  --md-code-hl-constant-color: #404040;
  --md-code-hl-color-color: #404040;
  --md-code-hl-string-color: #404040;
  --md-code-hl-keyword-color: #606060;
  --md-code-hl-operator-color: #606060;
  --md-code-hl-punctuation-color: #606060;
  --md-code-hl-comment-color: #a3a3a3;
  --md-code-hl-generic-color: #606060;
  --md-code-hl-variable-color: #0a0a0a;
  --md-code-hl-name-color: #0a0a0a;

  --md-admonition-fg-color: #404040;
  --md-admonition-bg-color: #f5f5f5;
  --md-shadow-z1: 0 1px 2px rgba(10, 10, 10, 0.05);
  --md-shadow-z2: 0 2px 8px rgba(10, 10, 10, 0.07);

  --md-text-font-family: "Public Sans", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --md-code-font-family: "JetBrains Mono", SFMono-Regular, Consolas, "Microsoft YaHei", monospace;
}

/* ---- tokens: DARK (slate) ------------------------------------------- */
[data-md-color-scheme="slate"] {
  --lx-ink: #f3f3f3;
  --lx-sub: #d4d4d4;
  --lx-faint: #a3a3a3;
  --lx-dim: #606060;
  --lx-bg: #1e1e1e;
  --lx-mute: #2a2a2a;
  --lx-line: rgba(255, 255, 255, 0.08);
  --lx-line-strong: rgba(255, 255, 255, 0.16);
  --lx-logo-stroke: #f3f3f3;
  --lx-header-bg: rgba(20, 20, 20, 0.85);
  --lx-header-bg-shadow: rgba(20, 20, 20, 0.94);
  --lx-scroll-track: #1e1e1e;
  --lx-scroll-thumb: #4a4a4a;

  --md-primary-fg-color: #f3f3f3;
  --md-primary-fg-color--light: #d4d4d4;
  --md-primary-fg-color--dark: #f3f3f3;
  --md-primary-bg-color: #1e1e1e;
  --md-primary-bg-color--light: #1e1e1e;
  --md-accent-fg-color: #f3f3f3;
  --md-accent-fg-color--transparent: rgba(255, 255, 255, 0.1);

  --md-default-bg-color: #1e1e1e;
  --md-default-bg-color--light: #252525;
  --md-default-bg-color--lighter: #2a2a2a;
  --md-default-bg-color--lightest: #333;
  --md-default-fg-color: #f3f3f3;
  --md-default-fg-color--light: #d4d4d4;
  --md-default-fg-color--lighter: #a3a3a3;
  --md-default-fg-color--lightest: #606060;

  --md-typeset-color: #f3f3f3;
  --md-typeset-a-color: #f3f3f3;
  --md-typeset-mark-color: rgba(255, 255, 255, 0.2);
  --md-typeset-kbd-color: #2a2a2a;
  --md-typeset-kbd-accent-color: #f3f3f3;
  --md-typeset-kbd-border-color: #4a4a4a;
  --md-typeset-table-color: rgba(255, 255, 255, 0.08);
  --md-typeset-table-color--light: rgba(255, 255, 255, 0.04);

  --md-code-bg-color: #2a2a2a;
  --md-code-fg-color: #f3f3f3;
  --md-code-hl-color: rgba(255, 255, 255, 0.12);
  --md-code-hl-number-color: #d4d4d4;
  --md-code-hl-special-color: #a3a3a3;
  --md-code-hl-function-color: #d4d4d4;
  --md-code-hl-constant-color: #d4d4d4;
  --md-code-hl-color-color: #d4d4d4;
  --md-code-hl-string-color: #d4d4d4;
  --md-code-hl-keyword-color: #a3a3a3;
  --md-code-hl-operator-color: #a3a3a3;
  --md-code-hl-punctuation-color: #a3a3a3;
  --md-code-hl-comment-color: #606060;
  --md-code-hl-generic-color: #a3a3a3;
  --md-code-hl-variable-color: #f3f3f3;
  --md-code-hl-name-color: #f3f3f3;

  --md-admonition-fg-color: #d4d4d4;
  --md-admonition-bg-color: #2a2a2a;
  --md-shadow-z1: 0 1px 2px rgba(0, 0, 0, 0.35);
  --md-shadow-z2: 0 2px 8px rgba(0, 0, 0, 0.45);

  --md-text-font-family: "Public Sans", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --md-code-font-family: "JetBrains Mono", SFMono-Regular, Consolas, "Microsoft YaHei", monospace;
}

/* ---- base ------------------------------------------------------------ */
body {
  background: var(--md-default-bg-color);
  color: var(--md-default-fg-color);
  font-family: var(--md-text-font-family);
  -webkit-font-smoothing: antialiased;
}

.md-typeset {
  font-size: 0.78rem;
  line-height: 1.75;
}

.md-typeset h1, .md-typeset h2, .md-typeset h3,
.md-typeset h4, .md-typeset h5, .md-typeset h6 {
  font-family: var(--md-text-font-family);
  color: var(--lx-ink);
  font-weight: 700;
  letter-spacing: -0.011em;
}

/* ---- header (var-driven, flips with scheme) -------------------------
   body[data-md-color-scheme] prefix raises specificity to (0,2,1) so we
   beat Material's [data-md-color-primary="black"] .md-header (0,2,0),
   which otherwise pins the header bar to a dark hsla() in BOTH schemes
   and hides the black logo on a dark header in light mode. */
body[data-md-color-scheme] .md-header {
  background-color: var(--lx-header-bg);
  backdrop-filter: saturate(1.4) blur(12px);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
  color: var(--lx-ink);
  box-shadow: none;
  border-bottom: 1px solid var(--lx-line);
}
body[data-md-color-scheme] .md-header[data-md-state="shadow"] {
  background-color: var(--lx-header-bg-shadow);
  box-shadow: var(--md-shadow-z1);
}
.md-header__topic { font-weight: 700; color: var(--lx-ink); }
.md-header__title { font-family: var(--md-text-font-family); color: var(--lx-ink); }
.md-header .md-header__button { color: var(--lx-faint); }
.md-search__icon svg { color: var(--lx-faint); }
.md-source__repository { color: var(--lx-faint); }

/* logo: inline svg, stroke + pupil follow scheme */
.md-logo svg { display: block; }
.md-logo .lx-logo-stroke { stroke: var(--lx-logo-stroke); }
.md-logo .lx-logo-fill { fill: var(--lx-logo-stroke); }

/* tabs — same specificity bump as header */
body[data-md-color-scheme] .md-tabs {
  background-color: var(--lx-header-bg);
  backdrop-filter: saturate(1.4) blur(12px);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid var(--lx-line);
}
.md-tabs__link { color: var(--lx-faint); font-weight: 500; }
.md-tabs__link:hover { color: var(--lx-ink); }

/* ---- sidebar --------------------------------------------------------- */
.md-sidebar { background-color: transparent; }
.md-nav { font-family: var(--md-text-font-family); font-size: 0.72rem; }
.md-nav__item .md-nav__link { color: var(--lx-faint); }
.md-nav__item .md-nav__link:hover { color: var(--lx-ink); }
.md-nav__item .md-nav__link--active,
.md-nav__item .md-nav__link--passed { color: var(--lx-ink); font-weight: 600; }
.md-nav__title { color: var(--lx-ink); font-weight: 700; font-size: 0.78rem; }

/* ---- content --------------------------------------------------------- */
.md-main { background-color: var(--lx-bg); }
.md-content, .md-typeset { color: var(--lx-ink); }

/* links: ink with underline — monochrome way to signal interactivity */
.md-typeset a {
  color: var(--lx-ink);
  text-decoration: underline;
  text-decoration-color: var(--lx-dim);
  text-underline-offset: 3px;
}
.md-typeset a:hover { text-decoration-color: var(--lx-ink); }
.md-nav__link, .md-tabs__link, .md-footer a { text-decoration: none; }

/* code — muted surface, hairline */
.md-typeset code, .md-typeset pre { font-family: var(--md-code-font-family); }
.md-typeset :not(pre) > code {
  background-color: var(--lx-mute);
  color: var(--lx-ink);
  border: 1px solid var(--lx-line);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}
.md-typeset pre > code, .md-typeset pre {
  background-color: var(--md-code-bg-color);
}
.md-typeset pre {
  border: 1px solid var(--lx-line);
  border-radius: 8px;
}

.md-typeset hr { border-bottom: 1px solid var(--lx-line); }
.md-typeset blockquote {
  border-left: 0.25rem solid var(--lx-line-strong);
  color: var(--lx-faint);
}

/* tables */
.md-typeset table:not([class]) {
  border: 1px solid var(--lx-line);
  background-color: var(--lx-bg);
  box-shadow: none;
  font-size: 0.72rem;
}
.md-typeset table:not([class]) th {
  background-color: var(--lx-mute);
  color: var(--lx-ink);
  font-weight: 600;
  border-bottom: 1px solid var(--lx-line-strong);
}
.md-typeset table:not([class]) td {
  border-top: 1px solid var(--lx-line);
  color: var(--lx-ink);
}

/* admonitions — quiet */
.md-typeset .admonition,
.md-typeset details {
  background-color: var(--lx-mute);
  border: 1px solid var(--lx-line);
  border-left: 3px solid var(--lx-dim);
  color: var(--lx-ink);
  box-shadow: none;
}
.md-typeset .admonition > .admonition-title,
.md-typeset details > .admonition-title,
.md-typeset details > summary {
  background-color: rgba(127, 127, 127, 0.08);
  color: var(--lx-ink);
  border-bottom: 1px solid var(--lx-line);
}
.md-typeset .admonition > .admonition-title::before { color: var(--lx-faint); }

/* buttons — ink on bg */
.md-typeset .md-button {
  background-color: var(--lx-ink);
  color: var(--lx-bg);
  border: none;
  font-family: var(--md-text-font-family);
  border-radius: 8px;
}
.md-typeset .md-button:hover { background-color: var(--lx-sub); }

/* search */
.md-search__input { background-color: var(--lx-mute); color: var(--lx-ink); }
.md-search__input::placeholder { color: var(--lx-dim); }
.md-search-result__meta { background-color: var(--lx-mute); color: var(--lx-faint); }
.md-search-result__more > summary { color: var(--lx-faint); }

/* footer — single dark anchor in both schemes */
.md-footer { background-color: #0a0a0a; color: var(--lx-dim); }
.md-footer-meta { background-color: #0a0a0a; }
.md-footer__link { color: var(--lx-dim); }
.md-footer__link:hover { color: #ffffff; }

/* scrollbar + selection */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--lx-scroll-track); }
::-webkit-scrollbar-thumb { background: var(--lx-scroll-thumb); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--lx-faint); }
::selection { background: rgba(127, 127, 127, 0.25); color: var(--lx-ink); }

/* ==========================================================================
   micro-UX polish (batch 1)
   ========================================================================== */

/* native form controls + scrollbars follow the scheme */
:root, [data-md-color-scheme="default"] { color-scheme: light; }
[data-md-color-scheme="slate"] { color-scheme: dark; }

/* anchor jumps must not hide headings under the sticky header/tabs */
html { scroll-padding-top: 5rem; scroll-behavior: smooth; }
.md-typeset h1[id], .md-typeset h2[id], .md-typeset h3[id],
.md-typeset h4[id], .md-typeset h5[id], .md-typeset h6[id] { scroll-margin-top: 5rem; }

/* clean monochrome focus ring (Material's default is fine, make it consistent) */
:focus-visible { outline: 2px solid var(--lx-ink); outline-offset: 2px; border-radius: 3px; }
.md-nav__link:focus-visible, .md-tabs__link:focus-visible, .md-header__button:focus-visible { outline-offset: -2px; }

/* smooth hover transitions on interactive surfaces */
.md-nav__link, .md-tabs__link, .md-header__button, .md-footer__link,
.md-typeset a, .md-button, .md-clipboard, .md-top { transition: color .15s ease, background-color .15s ease, opacity .15s ease; }

/* visited links stay quiet-monochrome */
.md-typeset a:visited { color: var(--lx-sub); }

/* back-to-top button — visible monochrome on both schemes */
body[data-md-color-scheme] .md-top {
  background-color: var(--lx-ink); color: var(--lx-bg);
  border: none; box-shadow: var(--md-shadow-z2);
}
body[data-md-color-scheme] .md-top:hover { background-color: var(--lx-sub); }
body[data-md-color-scheme] .md-top:is(:focus-visible) { outline: 2px solid var(--lx-ink); outline-offset: 2px; }

/* copy-to-clipboard button on code blocks */
.md-clipboard { color: var(--lx-faint); }
.md-clipboard:hover { color: var(--lx-ink); }
.md-clipboard:focus-visible { outline: 2px solid var(--lx-ink); outline-offset: 2px; color: var(--lx-ink); }

/* heading permalink — invisible until hover, ink on hover */
.md-typeset .headerlink { opacity: 0; color: var(--lx-dim); margin-left: .4em; transition: opacity .15s ease; text-decoration: none; }
.md-typeset :hover > .headerlink, .md-typeset .headerlink:focus-visible { opacity: 1; color: var(--lx-ink); }

/* tasklist checkboxes — monochrome */
.md-typeset .task-list-item input[type="checkbox"] {
  accent-color: var(--lx-ink); width: 1em; height: 1em; vertical-align: middle; margin-right: .3em;
}

/* mobile hamburger + nav toggles inherit theme ink */
.md-header__button.md-icon[for], .md-nav__toggle { color: var(--lx-faint); }
.md-header__button.md-icon[for]:hover, .md-nav__toggle:hover { color: var(--lx-ink); }

/* details/summary — chevron + hover */
.md-typeset details > summary { cursor: pointer; list-style: none; }
.md-typeset details > summary::-webkit-details-marker { display: none; }
.md-typeset details > summary::before {
  content: "▸"; color: var(--lx-faint); margin-right: .4em; transition: transform .15s ease; display: inline-block;
}
.md-typeset details[open] > summary::before { content: "▾"; }
.md-typeset details > summary:hover { color: var(--lx-ink); }

/* external links — subtle ↗ marker so users know it leaves the docs */
.md-typeset a[href^="http://"], .md-typeset a[href^="https://"]
{ /* base link style already ink-underline; add word-break for long URLs */ word-break: break-word; }
.md-typeset a[href^="http://"]::after, .md-typeset a[href^="https://"]::after {
  content: "↗"; font-size: .7em; vertical-align: super; margin-left: .15em; color: var(--lx-dim); text-decoration: none; opacity: .7;
}
/* but not for the site's own origin */
.md-typeset a[href^="https://docs.lxlynx.com"]::after,
.md-typeset a[href^="https://api.lxlynx.com"]::after { content: ""; }

/* images — constrain, round, subtle edge on dark */
.md-typeset img { max-width: 100%; height: auto; border-radius: 6px; }
[data-md-color-scheme="slate"] .md-typeset img:not([src*=".svg"]):not([src$=".png"]) {
  background-color: var(--lx-mute); /* avoid transparent PNGs looking holey on dark */
}
.md-typeset img + em, .md-typeset figure figcaption { display: block; text-align: center; color: var(--lx-faint); font-size: .72rem; margin-top: .3em; }

/* tables wrap horizontally on small screens instead of overflowing the page */
.md-typeset table:not([class]) { display: block; overflow-x: auto; max-width: 100%; -webkit-overflow-scrolling: touch; }
.md-typeset table:not([class]) thead, .md-typeset table:not([class]) tbody { display: table; width: 100%; }

/* code: long lines scroll cleanly, URLs break on mobile */
.md-typeset pre { overflow-x: auto; }
.md-typeset pre code { white-space: pre; word-break: normal; }
.md-typeset :not(pre) > code { word-break: break-word; overflow-wrap: anywhere; }

/* keyboard keys */
.md-typeset kbd {
  background-color: var(--lx-mute); color: var(--lx-ink);
  border: 1px solid var(--lx-line-strong); border-bottom-width: 2px;
  border-radius: 5px; padding: 0.05em 0.4em; font-size: .8em; font-family: var(--md-code-font-family);
}

/* mark / highlight */
.md-typeset mark { background: var(--md-typeset-mark-color); color: var(--lx-ink); padding: 0.05em 0.2em; border-radius: 3px; }

/* abbreviations */
.md-typeset abbr { text-decoration: underline dotted; cursor: help; }

/* blockquote refinement */
.md-typeset blockquote { padding: 0.4em 1em; border-radius: 0 4px 4px 0; }

/* admonition semantic differentiation (monochrome — via border weight/style, never hue) */
.md-typeset .admonition.tip, .md-typeset details.tip { border-left-width: 4px; }
.md-typeset .admonition.warning, .md-typeset details.warning { border-left-style: solid; border-left-width: 4px; }
.md-typeset .admonition.caution, .md-typeset details.caution { border-left-style: dashed; border-left-width: 5px; }
.md-typeset .admonition.abstract, .md-typeset details.abstract { border-left-style: double; border-left-width: 5px; }
.md-typeset .admonition.note, .md-typeset details.note { border-left-width: 3px; }

/* dark forms — inputs/textareas/selects match the scheme */
[data-md-color-scheme="slate"] input[type="text"], [data-md-color-scheme="slate"] input[type="search"],
[data-md-color-scheme="slate"] textarea, [data-md-color-scheme="slate"] select {
  background-color: var(--lx-mute); color: var(--lx-ink); border-color: var(--lx-line-strong);
}

/* mermaid: Material already binds --md-mermaid-edge/node colors to the palette
   vars (which we set monochrome), so diagrams follow the scheme natively.
   Do NOT add an invert() hack — it would double-invert an already-dark diagram. */

/* scrollbar thumb: hover already set; widen track slightly on dark for visibility */
[data-md-color-scheme="slate"] ::-webkit-scrollbar-thumb { background-color: var(--lx-scroll-thumb); }

/* reduced motion — honor the OS setting */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important; animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important; scroll-behavior: auto !important;
  }
}

/* print — clean black-on-white, hide chrome, surface link URLs */
@media print {
  .md-header, .md-tabs, .md-sidebar, .md-footer, .md-top, .md-search,
  .md-content__button, .md-nav, .headerlink, .md-clipboard { display: none !important; }
  .md-main, .md-content { max-width: 100% !important; margin: 0 !important; padding: 0 !important; }
  body { background: #fff !important; color: #000 !important; }
  .md-typeset, .md-typeset h1, .md-typeset h2, .md-typeset h3 { color: #000 !important; }
  .md-typeset pre, .md-typeset code, .md-typeset table { border-color: #ccc !important; background: #fff !important; }
  .md-typeset a { color: #000 !important; text-decoration: underline; }
  .md-typeset a[href^="http"]::after { content: " (" attr(href) ")"; font-size: .75em; color: #555; }
}

/* ==========================================================================
   batch 2 — header / tabs / sidebar / search / footer / chrome
   ========================================================================== */

/* tabs: active gets an ink underline; hover gets a faint surface */
.md-tabs__link { position: relative; padding-bottom: .4rem; }
/* active marker lives on the parent <li> (.md-tabs__item--active), not the <a> */
body[data-md-color-scheme] .md-tabs__item--active > .md-tabs__link { color: var(--lx-ink); font-weight: 600; }
body[data-md-color-scheme] .md-tabs__item--active > .md-tabs__link::after {
  content: ""; position: absolute; left: .6rem; right: .6rem; bottom: 0;
  height: 2px; background: var(--lx-ink);
}
.md-tabs__link:hover { background-color: var(--lx-mute); }

/* sidebar active link: left ink bar + ink text (monochrome) */
.md-nav__link--active, .md-nav__link--passed { color: var(--lx-ink); font-weight: 600; }
.md-nav__item .md-nav__link--active { border-left: 2px solid var(--lx-ink); padding-left: .4rem; }

/* sidebar title: tighter, heavier */
.md-nav__title { font-weight: 700; font-size: .72rem; letter-spacing: .02em; padding-top: .2rem; }

/* skip link: visible on focus only */
.md-skip { position: absolute; left: .6rem; top: -3rem; z-index: 100; padding: .4rem .7rem; background: var(--lx-ink); color: var(--lx-bg); border-radius: 4px; transition: top .15s ease; }
.md-skip:focus { top: .6rem; outline: 2px solid var(--lx-bg); outline-offset: 2px; }

/* breadcrumb */
.md-breadcrumb { font-size: .7rem; color: var(--lx-faint); }
.md-breadcrumb__link { color: var(--lx-faint); }
.md-breadcrumb__link:hover { color: var(--lx-ink); }
.md-breadcrumb__list { display: flex; flex-wrap: wrap; gap: .25rem; }

/* prev/next pagination: clear tap targets */
.md-footer__button { min-height: 44px; padding: .4rem .6rem; color: var(--lx-faint); }
.md-footer__button:hover { color: var(--lx-ink); }

/* header buttons: meet touch target on the hamburger/search */
.md-header__button { min-width: 44px; min-height: 44px; }

/* search */
.md-search__input::placeholder { color: var(--lx-dim); }
.md-search-result__item:hover { background-color: var(--lx-mute); }
.md-search-result mark { background: var(--md-typeset-mark-color); color: var(--lx-ink); border-radius: 2px; }
.md-search-result__more > summary { color: var(--lx-faint); padding: .5rem .8rem; }

/* mobile: tabs scroll horizontally without page overflow */
@media (max-width: 76.1875em) {
  .md-tabs { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .md-tabs__list { flex-wrap: nowrap; }
}

/* footer link + social refine */
.md-footer__link { transition: color .15s ease; }
.md-footer-meta__inner-text a:hover { color: #fff; }

/* ==========================================================================
   batch 3 — typography rhythm + content components
   ========================================================================== */

/* heading spacing rhythm */
.md-typeset h1 { margin: 0 0 1.2rem; font-size: 1.9rem; }
.md-typeset h2 { margin: 2.2rem 0 .9rem; padding-top: .4rem; }
.md-typeset h3 { margin: 1.8rem 0 .7rem; }
.md-typeset h4, .md-typeset h5, .md-typeset h6 { margin: 1.4rem 0 .6rem; }

/* paragraph + list rhythm */
.md-typeset p { margin: 1rem 0; }
.md-typeset ul, .md-typeset ol { margin: 1rem 0; padding-left: 1.4rem; }
.md-typeset li { margin: .35rem 0; }
.md-typeset li > ul, .md-typeset li > ol { margin: .35rem 0; }

/* definition lists */
.md-typeset dt { font-weight: 700; margin-top: .8rem; }
.md-typeset dd { margin: .3rem 0 .6rem 1.2rem; color: var(--lx-sub); }

/* footnotes */
.md-typeset .footnote { font-size: .72rem; color: var(--lx-sub); }
.md-typeset .footnote-ref { font-size: .7em; vertical-align: super; }
.md-typeset .footnote-backref { text-decoration: none; }

/* emoji in headings: keep inline size balanced */
.md-typeset h1 img.twemoji, .md-typeset h2 img.twemoji, .md-typeset h3 img.twemoji { height: 1em; vertical-align: -0.1em; }

/* horizontal rule */
.md-typeset hr { border: none; border-top: 1px solid var(--lx-line); margin: 2rem 0; }

/* code: comfortable size + line-height; line numbers quiet */
.md-typeset pre { font-size: .72rem; line-height: 1.6; }
.md-typeset pre > code { font-size: .72rem; }
.md-typeset .linenos { color: var(--lx-dim); user-select: none; }
/* highlighted line inside code */
.md-typeset pre .hll, .md-typeset mark { background-color: var(--md-code-hl-color); }

/* table: subtle zebra + sticky header on vertical scroll */
.md-typeset table:not([class]) tbody tr:nth-child(even) { background-color: var(--lx-line); }
.md-typeset table:not([class]) thead th { position: sticky; top: 0; z-index: 1; }
.md-typeset table:not([class]) td, .md-typeset table:not([class]) th { padding: .5rem .7rem; }

/* admonition title icon sizing + nested admonition bg */
.md-typeset .admonition > .admonition-title::before { font-size: .9em; margin-right: .4em; }
.md-typeset .admonition .admonition { background-color: var(--lx-bg); }

/* button press feedback */
.md-typeset .md-button:active { transform: translateY(1px); }

/* gentle content measure so prose lines stay readable on wide screens */
.md-typeset p, .md-typeset ul, .md-typeset ol { max-width: 78ch; }

/* inline code in headings stays compact */
.md-typeset h1 code, .md-typeset h2 code, .md-typeset h3 code { font-size: .8em; }

/* clipboard success check stays monochrome */
.md-clipboard[data-md-state="done"] { color: var(--lx-ink); }

/* ==========================================================================
   batch 4 — a11y, contrast, interaction micro-details (2026-09-13)
   ========================================================================== */

/* monochrome links share the ink color, so they need a faint underline to be
   distinguishable from body text; underline intensifies on hover. */
.md-typeset a:not(.md-button):not(.headerlink):not(.footnote-backref) {
  text-decoration: underline;
  text-decoration-color: var(--lx-line-strong);
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: text-decoration-color .15s ease;
}
.md-typeset a:not(.md-button):not(.headerlink):not(.footnote-backref):hover {
  text-decoration-color: var(--lx-ink);
}
.md-typeset a:visited { color: var(--lx-ink); }

/* stable scrollbar gutter: no layout shift when a scrollbar appears/disappears */
html { scrollbar-gutter: stable; }

/* touch devices don't truly hover — guard hover affordances to hover-capable pointers */
@media (hover: hover) and (pointer: fine) {
  .md-nav__link:hover, .md-tabs__link:hover { border-radius: 4px; }
}

/* Windows high-contrast / forced-colors: give borderless surfaces an explicit
   edge so tables/code/admonitions don't collapse into the page. */
@media (forced-colors: active) {
  .md-typeset table:not([class]),
  .md-typeset pre,
  .md-admonition,
  .md-typeset :not(pre) > code { border: 1px solid CanvasText; }
  .md-typeset a { text-decoration: underline; }
}

/* users who ask for more contrast: lift the faint/dim greys toward the ink */
@media (prefers-contrast: more) {
  [data-md-color-scheme="default"] { --lx-faint: #2a2a2a; --lx-dim: #404040; --lx-line: rgba(10,10,10,.18); --lx-line-strong: rgba(10,10,10,.28); }
  [data-md-color-scheme="slate"]   { --lx-faint: #d4d4d4; --lx-dim: #b0b0b0; --lx-line: rgba(255,255,255,.18); --lx-line-strong: rgba(255,255,255,.30); }
}

/* sidebar nav: comfortable touch target + tighter rhythm */
.md-nav__link { min-height: 2rem; display: flex; align-items: center; }
.md-nav--primary .md-nav__item + .md-nav__item { margin-top: .08rem; }

/* permalink header anchors: quiet until hovered */
.md-typeset .headerlink { color: var(--lx-dim); opacity: 0; transition: opacity .15s ease, color .15s ease; }
.md-typeset :hover > .headerlink,
.md-typeset .headerlink:focus { opacity: 1; color: var(--lx-ink); }

/* blockquote: a stronger left rule + softened body text */
.md-typeset blockquote { border-left: 3px solid var(--lx-line-strong); padding-left: 1rem; color: var(--lx-sub); }

/* inline code: a hairline border so it reads on both themes even without the bg */
.md-typeset :not(pre) > code { border: 1px solid var(--lx-line); }

/* footnotes: super-baseline ref + larger back-arrow hit area */
.md-typeset .footnote-ref { font-size: .75em; vertical-align: super; }
.md-typeset .footnote-backref { padding: 0 .2rem; }

/* details/summary: fade content in on open (respecting reduced-motion) */
.md-typeset details[open] > *:not(summary) { animation: lx-fade .15s ease-out; }
@keyframes lx-fade { from { opacity: 0; } to { opacity: 1; } }

/* table cells: comfortable padding */
.md-typeset table:not([class]) th,
.md-typeset table:not([class]) td { padding: .55rem .75rem; }

/* code selection: keep the highlight visible over dark code backgrounds */
.md-typeset pre ::selection,
.md-typeset code ::selection { background: var(--lx-line-strong); color: var(--lx-ink); }

/* search result metadata: quiet */
.md-search-result__meta { color: var(--lx-dim); font-size: .65rem; }

/* inline images: kill the descender gap */
.md-typeset img { vertical-align: middle; }

/* ==========================================================================
   batch 5 — TOC, search, content-tabs, :target, footer micro-details
   ========================================================================== */

/* arriving via an in-page anchor (#section): flash the heading so the eye
   lands on it, then fades out so it doesn't linger. 192 pages use headerlinks. */
.md-typeset :target { scroll-margin-top: 5rem; animation: lx-target-flash 1.6s ease-out; }
@keyframes lx-target-flash {
  0%   { background-color: var(--lx-line-strong); }
  100% { background-color: transparent; }
}

/* content tabs (pymdownx.tabbed alternate): active tab ink, hover lift, comfy padding */
.md-typeset .tabbed-labels { background-color: transparent; }
.md-typeset .tabbed-labels > label {
  color: var(--lx-faint); font-weight: 600; padding: .4rem .9rem;
  transition: color .15s ease;
}
.md-typeset .tabbed-labels > label:hover { color: var(--lx-ink); }
.md-typeset .tabbed-labels > label[aria-selected="true"] { color: var(--lx-ink); }

/* search: highlighted match term stays monochrome + readable */
.md-search-result mark { color: var(--lx-ink); background-color: var(--lx-line-strong); padding: 0 .1rem; border-radius: 2px; }

/* mobile sidebar scrim: neutral */
body[data-md-color-scheme] .md-overlay { background-color: rgba(0, 0, 0, 0.4); }

/* right-hand table of contents: quieter rhythm + active item ink */
.md-nav--secondary .md-nav__link { color: var(--lx-dim); font-size: .7rem; }
.md-nav--secondary .md-nav__link--active { color: var(--lx-ink); font-weight: 600; }
.md-nav--secondary .md-nav__title {
  font-size: .72rem; color: var(--lx-faint); font-weight: 700;
  text-transform: uppercase; letter-spacing: .03em;
}

/* footer: flat surface separated by a hairline (cleaner than a heavy bar) */
body[data-md-color-scheme] .md-footer { background-color: var(--lx-bg); border-top: 1px solid var(--lx-line); color: var(--lx-sub); }
.md-footer-meta { color: var(--lx-dim); }
.md-footer__link:hover .md-footer__button { color: var(--lx-ink); }

/* header site-name: tight tracking for a crisper wordmark */
.md-header__title { letter-spacing: .01em; font-weight: 700; }

/* sidebar section-toggle chevrons: monochrome */
.md-nav__icon { color: var(--lx-dim); }

/* code blocks: predictable tab width, never word-wrap */
.md-typeset pre { tab-size: 2; }

/* copy-to-clipboard: hover lift */
.md-clipboard:hover { color: var(--lx-ink); }

/* back-to-top: full ink on hover */
.md-top:hover { color: var(--lx-ink); }

/* link :active press feedback */
.md-typeset a:not(.md-button):active { text-decoration-thickness: 2px; }

/* headings: keep selection readable */
.md-typeset :is(h1, h2, h3, h4, h5, h6) ::selection { background: var(--lx-line-strong); }

/* users who prefer reduced transparency: drop the header/search blurs */
@media (prefers-reduced-transparency: reduce) {
  body[data-md-color-scheme] .md-header,
  body[data-md-color-scheme] .md-search__inner,
  body[data-md-color-scheme] .md-tabs {
    -webkit-backdrop-filter: none; backdrop-filter: none;
  }
}

/* ==========================================================================
   batch 6 — typography & interaction micro-details (2026-09-13)
   ========================================================================== */

/* crisp text: optimize kerning/ligatures + platform smoothing per scheme */
.md-typeset { text-rendering: optimizeLegibility; }
[data-md-color-scheme="slate"] { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
[data-md-color-scheme="default"] { -webkit-font-smoothing: auto; -moz-osx-font-smoothing: auto; }

/* balanced heading line-breaks + prettier paragraph orphans (progressive) */
.md-typeset :is(h1, h2, h3, h4) { text-wrap: balance; }
.md-typeset p { text-wrap: pretty; }

/* table row hover: quiet highlight so long rows stay trackable */
.md-typeset table:not([class]) tbody tr { transition: background-color .12s ease; }
.md-typeset table:not([class]) tbody tr:hover { background-color: var(--lx-mute); }

/* <details>/<summary>: pointer affordance on the whole summary */
.md-typeset summary { cursor: pointer; }

/* search input: strip UA chrome so the field matches the shell */
.md-search__input { -webkit-appearance: none; appearance: none; }

/* Firefox scrollbar: thin + monochrome (webkit is styled separately) */
* { scrollbar-width: thin; scrollbar-color: var(--lx-scroll-thumb) transparent; }

/* reduced motion: also disable smooth scroll so jumps are instant */
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }