/* Folderite look on top of Material, taken from the landing page's styles.css (site/). Light and dark follow the system. */

/* ------------------------------------------------------------ tokens */
:root {
  --fl-radius: 12px;
  --fl-font: "Segoe UI Variable Text", "Segoe UI Variable", "Segoe UI", system-ui, -apple-system, sans-serif;
  --fl-display: "Segoe UI Variable Display", "Segoe UI Variable", "Segoe UI", system-ui, -apple-system, sans-serif;
  --fl-mono: "Cascadia Mono", Consolas, "Courier New", monospace;
  --fl-ease: cubic-bezier(.2, .8, .2, 1);
  --fl-bar: 76px;
  /* Material builds --md-text-font-family and --md-code-font-family from these two. */
  --md-text-font: "Segoe UI Variable Text", "Segoe UI Variable", "Segoe UI", system-ui;
  --md-code-font: "Cascadia Mono", Consolas, "Courier New";
}

/* Light, the landing page's :root. Also on :root so the page scrollbar (drawn by <html>) has values. */
:root,
[data-md-color-scheme=default] {
  --fl-bg0: #f5f6f8;
  --fl-bg1: #ffffff;
  --fl-bg2: #eef0f4;
  --fl-bg3: #e4e7ec;
  --fl-line: rgba(17, 24, 39, .08);
  --fl-line2: rgba(17, 24, 39, .15);
  --fl-text: #15171c;
  --fl-body: #3b414c;
  --fl-sub: #646b77;
  --fl-yellow: #c98a00;
  --fl-yellow-fill: #f2b632;
  --fl-amber: #e0670a;
  --fl-blue: #0a6cd6;
  --fl-blue-2: #3d9bff;
  --fl-link: #0a5fc0;
  --fl-link-hover: #084c99;
  --fl-wash: rgba(10, 108, 214, .07);
  --fl-glass: rgba(255, 255, 255, .78);
  --fl-shadow: 0 24px 60px rgba(17, 24, 39, .16), 0 2px 6px rgba(17, 24, 39, .06);
  --fl-shadow-sm: 0 8px 24px rgba(17, 24, 39, .08);
  --fl-orb-y: rgba(242, 182, 50, .42);
  --fl-orb-b: rgba(61, 155, 255, .30);
  --fl-stage: #d9e2ec;                 /* backdrop baked into every screenshot */
  color-scheme: light;
}

/* Dark, the landing page's prefers-color-scheme block. */
[data-md-color-scheme=slate] {
  --fl-bg0: #141416;
  --fl-bg1: #1a1b1e;
  --fl-bg2: #222327;
  --fl-bg3: #2c2d32;
  --fl-line: rgba(255, 255, 255, .07);
  --fl-line2: rgba(255, 255, 255, .14);
  --fl-text: #f0f0f0;
  --fl-body: #c8c9ce;
  --fl-sub: #92949a;
  --fl-yellow: #ffcf4a;
  --fl-yellow-fill: #f2b632;
  --fl-amber: #ff9f43;
  --fl-blue: #2f8cf5;
  --fl-blue-2: #5aaeff;
  --fl-link: #6cb4ff;
  --fl-link-hover: #a3d0ff;
  --fl-wash: rgba(61, 155, 255, .09);
  --fl-glass: rgba(26, 27, 30, .80);
  --fl-shadow: 0 24px 60px rgba(0, 0, 0, .5), 0 0 60px rgba(61, 155, 255, .06);
  --fl-shadow-sm: 0 8px 24px rgba(0, 0, 0, .3);
  --fl-orb-y: rgba(242, 182, 50, .30);
  --fl-orb-b: rgba(61, 155, 255, .28);
  --fl-stage: #1f242c;                 /* dark capture backdrop, see tools/screenshots/capture.ps1 */
  color-scheme: dark;
}

/* Same dark values on :root, only for the page scrollbar before and outside the body attribute. */
@media (prefers-color-scheme: dark) {
  :root {
    --fl-bg0: #141416;
    --fl-bg3: #2c2d32;
    color-scheme: dark;
  }
}

/* Material's colors, mapped for both schemes. */
[data-md-color-scheme=default],
[data-md-color-scheme=slate] {
  --md-default-bg-color: var(--fl-bg0);
  --md-default-fg-color: var(--fl-text);
  --md-default-fg-color--light: var(--fl-body);
  --md-default-fg-color--lighter: var(--fl-sub);
  --md-default-fg-color--lightest: var(--fl-line2);
  --md-typeset-color: var(--fl-body);
  --md-typeset-a-color: var(--fl-link);
  --md-typeset-table-color: var(--fl-line2);
  --md-code-bg-color: var(--fl-bg2);
  --md-code-fg-color: var(--fl-text);
  --md-footer-bg-color: var(--fl-bg1);
  --md-footer-bg-color--dark: var(--fl-bg1);
  --md-footer-fg-color: var(--fl-text);
  --md-footer-fg-color--light: var(--fl-sub);
  --md-footer-fg-color--lighter: var(--fl-sub);
  --md-admonition-bg-color: var(--fl-bg1);
  --md-admonition-fg-color: var(--fl-body);
  --md-shadow-z1: var(--fl-shadow-sm);
  --md-shadow-z2: var(--fl-shadow-sm);
  --md-shadow-z3: var(--fl-shadow);
}

[data-md-color-primary=custom] {
  --md-primary-fg-color: var(--fl-blue);
  --md-primary-fg-color--light: var(--fl-blue-2);
  --md-primary-fg-color--dark: #0757b0;
  --md-primary-bg-color: var(--fl-text);
  --md-primary-bg-color--light: var(--fl-sub);
}

[data-md-color-accent=custom] {
  --md-accent-fg-color: var(--fl-link-hover);
  --md-accent-fg-color--transparent: var(--fl-wash);
}

body {
  background: var(--fl-bg0);
  -webkit-font-smoothing: antialiased;
}

/* Soft yellow and blue glows behind the top of every page, like the landing page's hero orbs (static). */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  opacity: .8;
  background:
    radial-gradient(540px circle at max(4%, calc(50% - 560px)) 80px, var(--fl-orb-y), transparent 70%),
    radial-gradient(500px circle at min(96%, calc(50% + 620px)) 40%, var(--fl-orb-b), transparent 70%);
}
.md-container, .md-main { background: transparent; }

:focus-visible { outline: 2px solid var(--fl-blue); outline-offset: 2px; }

/* ------------------------------------------------------------ top bar */
.md-header {
  height: var(--fl-bar);
  padding: 12px 20px 0;
  background: transparent;
  box-shadow: none !important;
  color: var(--fl-text);
  pointer-events: none;
}
/* Always the landing page's `.top.scrolled .top-inner` look. */
.md-header__inner {
  max-width: 1180px;
  height: 62px;
  padding: 0 10px 0 16px;
  gap: 16px;
  background: var(--fl-glass);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  backdrop-filter: blur(14px) saturate(1.4);
  border: 1px solid var(--fl-line2);
  border-radius: 16px;
  box-shadow: var(--fl-shadow-sm);
  pointer-events: auto;
}
.md-header__button { margin: 0; padding: 6px; }
.fl-menu { display: none !important; }
@media screen and (max-width: 76.234375em) {
  .fl-menu { display: inline-block !important; }
}

.fl-brand {
  display: flex; align-items: center; gap: 10px; min-width: 0;
  color: var(--fl-text) !important; text-decoration: none;
  font: 800 19px/1.55 var(--fl-display); letter-spacing: -.02em;
}
.fl-logo { flex: none; width: 30px; height: 30px; }
.fl-docs {
  color: var(--fl-body) !important; text-decoration: none;
  font-size: 15px; font-weight: 600;
  padding: 8px 14px; border-radius: 10px;
  transition: color .15s, background .15s;
}
.fl-docs:hover { color: var(--fl-text) !important; background: var(--fl-wash); }
.fl-spacer { flex: 1; }

.fl-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 42px; padding: 0 18px; border-radius: 10px;
  font: 600 15px var(--fl-font); white-space: nowrap; text-decoration: none;
  background: var(--fl-bg1); border: 1px solid var(--fl-line2);
  transition: border-color .15s, color .15s, background .15s, transform .15s, box-shadow .15s;
}
.fl-btn svg { width: 18px; height: 18px; fill: currentColor; }
.fl-gh { color: var(--fl-text) !important; }
.fl-gh:hover { color: var(--fl-text) !important; border-color: var(--fl-blue); background: var(--fl-wash); }
.fl-primary {
  position: relative; overflow: hidden; isolation: isolate;
  color: #fff !important; font-weight: 700;
  background: linear-gradient(135deg, var(--fl-blue-2) 0%, var(--fl-blue) 60%, #0757b0 100%);
  border-color: transparent;
  box-shadow: 0 0 0 1px rgba(10, 108, 214, .35), 0 8px 24px rgba(10, 108, 214, .30);
}
.fl-primary::after {
  content: ""; position: absolute; inset: -2px; z-index: -1; pointer-events: none;
  background: linear-gradient(105deg, transparent 30%, rgba(255, 255, 255, .45) 50%, transparent 70%);
  transform: translateX(-120%);
  transition: transform .7s var(--fl-ease);
}
.fl-primary:hover {
  color: #fff !important; transform: translateY(-1px);
  box-shadow: 0 0 0 1px rgba(10, 108, 214, .55), 0 12px 36px rgba(10, 108, 214, .45);
}
.fl-primary:hover::after { transform: translateX(120%); }
.fl-btn:active { transform: translateY(1px); }
@media (prefers-reduced-motion: reduce) {
  .fl-btn, .fl-docs, .fl-primary::after { transition: none; }
}

@media screen and (max-width: 44.984375em) {
  .md-header { padding: 8px 10px 0; }
  .md-header__inner { padding: 0 8px; gap: 6px; }
  .fl-brand { font-size: 17px; gap: 8px; }
  .fl-logo { width: 26px; height: 26px; }
  .fl-gh-label, .fl-docs { display: none; }
  .fl-gh { width: 42px; padding: 0; }
  .fl-primary { padding: 0 14px; }
}

/* Search: a field in the bar. */
@media screen and (min-width: 60em) {
  .md-search { padding: 0; }
  .md-search__form {
    border-radius: 10px;
    background: var(--fl-bg2);
    border: 1px solid var(--fl-line2);
  }
  .md-search__form:hover { background: var(--fl-bg3); }
  .md-search__input { font-size: 14.5px; }
  [data-md-toggle=search]:checked ~ .md-header .md-search__form {
    border-radius: 10px 10px 0 0; background: var(--fl-bg1);
  }
  .md-search__output { border-radius: 0 0 10px 10px; }
}
.md-search__input { color: var(--fl-text); }
.md-search__input::placeholder { color: var(--fl-sub); }
.md-search__icon { color: var(--fl-sub); }
.md-search__scrollwrap, .md-search-result { background: var(--fl-bg1); }
.md-search-result__meta { background: var(--fl-bg2); color: var(--fl-sub); }

/* Content and sidebars start below the floating bar. */
.md-main__inner { margin-top: calc(var(--fl-bar) - 2.4rem + 1rem); }
@media screen and (min-width: 76.25em) {
  .md-nav--primary > .md-nav__title { display: none; }
  .md-sidebar { top: calc(var(--fl-bar) + 8px); height: calc(100vh - var(--fl-bar) - 8px); }
}
.md-typeset [id], .md-typeset h1, .md-typeset h2, .md-typeset h3 { scroll-margin-top: calc(var(--fl-bar) + 16px); }

/* ------------------------------------------------------------ sidebars */
.md-nav { font-size: 14px; }
.md-nav__title { color: var(--fl-text); font-weight: 800; }
.md-nav--primary .md-nav__item--section > .md-nav__link {
  font: 700 11px/1 var(--fl-mono);
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--fl-sub);
  margin-top: 1.4em;
}
.md-nav__link { color: var(--fl-body); transition: color .15s; }
.md-nav__link:hover, .md-nav__link:focus { color: var(--fl-text); }
.md-nav__link--active, .md-nav__item .md-nav__link--active { color: var(--fl-link); font-weight: 600; }
.md-nav--secondary .md-nav__title { color: var(--fl-sub); background: transparent; box-shadow: none; }
@media screen and (max-width: 76.234375em) {
  .md-nav--primary .md-nav__title { background: var(--fl-bg1); }
  .md-nav--primary .md-nav__item--active > .md-nav__link { color: var(--fl-link); }
  .md-sidebar--primary { background: var(--fl-bg0); }
  .md-nav__source { background: var(--fl-bg1); }
}

/* ------------------------------------------------------------ content */
.md-typeset { font-size: 15.5px; line-height: 1.65; }
.md-typeset h1 {
  color: var(--fl-text);
  font-family: var(--fl-display);
  font-weight: 800; letter-spacing: -.03em;
  font-size: 2.4em; line-height: 1.1; margin-bottom: .8em;
}
.md-typeset h2 {
  color: var(--fl-text);
  font-family: var(--fl-display);
  font-weight: 800; letter-spacing: -.02em;
  padding-top: .6em; border-top: 1px solid var(--fl-line);
}
.md-typeset h1 + h2, .md-typeset h1 + p + h2 { border-top: 0; }
.md-typeset h3 { color: var(--fl-text); font-family: var(--fl-display); font-weight: 700; letter-spacing: -.01em; }
.md-typeset strong { color: var(--fl-text); }
.md-typeset a { text-underline-offset: 3px; }
.md-typeset a:hover { color: var(--fl-link-hover); }
.md-typeset .headerlink { color: var(--fl-sub); }
.md-typeset .headerlink:hover, .md-typeset [id]:target .headerlink { color: var(--fl-yellow); }

.md-typeset code {
  border-radius: 5px; padding: .1em .35em;
  border: 1px solid var(--fl-line);
}
.md-typeset pre > code { border: 0; padding: 1em 1.2em; }
.md-typeset pre { border: 1px solid var(--fl-line); border-radius: 8px; overflow: hidden; }

.md-typeset kbd {
  font: 500 .86em var(--fl-mono);
  padding: 1px 6px; border-radius: 5px;
  background: var(--fl-bg2); color: var(--fl-text);
  border: 1px solid var(--fl-line); border-bottom-width: 2px; box-shadow: none;
}

.md-typeset table:not([class]) {
  font-size: 14px;
  background: var(--fl-bg1);
  border: 1px solid var(--fl-line2); border-radius: 8px;
  box-shadow: none;
}
.md-typeset table:not([class]) th {
  background: var(--fl-bg2); color: var(--fl-text); font-weight: 700;
}
.md-typeset table:not([class]) td { border-top: 1px solid var(--fl-line); }
.md-typeset table:not([class]) tr:hover { background: var(--fl-wash); box-shadow: none; }

/* Screenshots sit on the colour baked into their backdrop, so a rounded corner never shows the page through it. */
.md-typeset img {
  border-radius: var(--fl-radius);
  background: var(--fl-stage);
  border: 1px solid var(--fl-line2);
  box-shadow: var(--fl-shadow);
}

/* A picture that would show bigger can be clicked (docs/javascripts/lightbox.js). */
.md-typeset img.fl-zoomable { cursor: zoom-in; transition: border-color .15s var(--fl-ease), box-shadow .15s var(--fl-ease); }
.md-typeset img.fl-zoomable:hover { border-color: var(--fl-blue); }
.md-typeset img.fl-zoomable:focus-visible { outline: 2px solid var(--fl-blue); outline-offset: 3px; }

/* The lightbox is dark in both themes, so its surfaces and text have their own fixed values. */
html.fl-lightbox-open { overflow: hidden; }
.fl-lightbox {
  --fl-lb-text: #f0f0f0;
  --fl-lb-sub: #c8c9ce;
  --fl-lb-surface: #222327;
  --fl-lb-line: rgba(255, 255, 255, .18);
  --fl-lb-accent: #5aaeff;
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(10, 12, 16, .88);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  opacity: 0; transition: opacity .18s var(--fl-ease);
  cursor: zoom-out;
}
.fl-lightbox-pan { position: absolute; inset: 0; display: grid; place-items: center; padding: 24px 20px; }
.fl-lightbox.on { opacity: 1; }
.fl-lightbox figure { margin: 0; display: grid; gap: 12px; justify-items: center; max-width: 100%; max-height: 100%; }
.fl-lightbox img {
  display: block; max-width: calc(100vw - 40px); max-height: calc(100vh - 150px); width: auto; height: auto;
  border-radius: var(--fl-radius); background: var(--fl-stage);
  border: 1px solid var(--fl-lb-line); box-shadow: 0 30px 90px rgba(0, 0, 0, .5);
}
.fl-lightbox figcaption {
  width: 0; min-width: min(100%, 720px); text-align: center;      /* no wider than the picture, at most 720px */
  color: var(--fl-lb-sub); font-size: 15px; line-height: 1.5;
}
.fl-lightbox-x {
  position: fixed; top: 16px; right: 16px; width: 40px; height: 40px;
  display: grid; place-items: center; padding: 0; cursor: pointer;
  color: var(--fl-lb-text); background: var(--fl-lb-surface); border: 1px solid var(--fl-lb-line); border-radius: 50%;
  transition: border-color .15s var(--fl-ease), color .15s var(--fl-ease);
}
.fl-lightbox-x:hover { color: var(--fl-lb-accent); border-color: var(--fl-lb-accent); }
.fl-lightbox-x:focus-visible { outline: 2px solid var(--fl-lb-accent); outline-offset: 3px; }
/* On a phone the picture is already as wide as the screen: show it at its own size and let it be panned. */
@media (max-width: 700px) {
  .fl-lightbox-pan { overflow: auto; place-items: start; padding: 64px 20px 24px; }
  .fl-lightbox figure { max-width: none; max-height: none; justify-items: start; }
  .fl-lightbox img { max-width: none; max-height: none; }
  .fl-lightbox figcaption { position: sticky; left: 20px; width: calc(100vw - 40px); min-width: 0; text-align: left; }
}
@media (prefers-reduced-motion: reduce) {
  .fl-lightbox, .md-typeset img.fl-zoomable, .fl-lightbox-x { transition: none; }
}

.md-typeset .admonition, .md-typeset details {
  background: var(--fl-bg1); border-radius: 8px;
  border-color: var(--fl-yellow-fill); box-shadow: none; font-size: 14.5px;
}

.md-content__button { color: var(--fl-sub); }
.md-content__button:hover { color: var(--fl-link); }

/* ------------------------------------------------------------ footer */
.md-footer { background: transparent; color: var(--fl-text); }
.md-footer__inner { padding: 8px 0 24px; }
.md-footer__link {
  margin: 0 .6rem; padding: 14px 18px;
  background: var(--fl-bg1);
  border: 1px solid var(--fl-line); border-radius: 10px;
  opacity: 1;
  transition: border-color .15s, color .15s;
}
.md-footer__link:hover { border-color: var(--fl-blue); color: var(--fl-link); opacity: 1; }
.md-footer__title { font-weight: 700; }
.md-footer__direction { color: var(--fl-sub); font-weight: 400; opacity: 1; }

/* The landing page's `.foot`. */
.fl-foot {
  border-top: 1px solid var(--fl-line);
  background: var(--fl-bg1);
  padding: 40px 32px 48px;
  text-align: center; color: var(--fl-sub); font-size: 14.5px;
  display: grid; gap: 14px; justify-items: center;
}
.fl-foot p { margin: 0; }
.fl-foot-brand { display: flex; align-items: center; gap: 10px; color: var(--fl-text); font-weight: 700; }
.fl-foot-brand img { width: 24px; height: 24px; }
.fl-foot-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px 22px; }
.fl-foot-links a { color: var(--fl-sub); text-decoration: none; font-weight: 600; }
.fl-foot-links a:hover { color: var(--fl-blue); }
@media screen and (max-width: 44.984375em) {
  .fl-foot { padding-left: 16px; padding-right: 16px; }
}

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--fl-bg3); border-radius: 10px; border: 2px solid var(--fl-bg0); }