/* ============================================================================
   zGentic docs — "Liquid Glass" skin for MkDocs Material.

   The token VALUES below are lifted from the web app (web/src/app/globals.css +
   web/src/app/theme-ios.css) so the docs read as the same product. Everything
   below the token block is expressed as var(--…) — NO raw colour literals — so a
   brand change is a one-file edit here (and in the app's token layer).

   Light  = Material scheme `default`  ->  the app's light iOS palette.
   Dark   = Material scheme `slate`    ->  the app's dark iOS palette.
   The palette's first entry is `(prefers-color-scheme)`, so the system setting is
   honoured by default and the header toggle still switches explicitly.
   ========================================================================== */

/* ---------------------------------------------------------------- tokens: light */
[data-md-color-scheme="default"] {
  --zg-bg: #eef1f6;
  --zg-surface: #ffffff;
  --zg-surface-2: #f2f2f7;

  --zg-border: rgba(60, 60, 67, 0.14);
  --zg-border-strong: rgba(60, 60, 67, 0.22);

  --zg-text: #1c1c1e;
  --zg-text-muted: rgba(60, 60, 67, 0.6);
  --zg-text-subtle: rgba(60, 60, 67, 0.42);

  --zg-accent: #007aff;
  --zg-accent-hover: #0069e0;
  --zg-accent-soft: rgba(0, 122, 255, 0.12);
  --zg-on-accent: #ffffff;

  --zg-success: #2fb457;
  --zg-warning: #ff9f0a;
  --zg-danger: #ff3b30;
  --zg-indigo: #5e5ce6;

  --zg-glass-chrome-bg: rgba(255, 255, 255, 0.62);
  --zg-glass-surface-bg: rgba(255, 255, 255, 0.72);
  --zg-glass-highlight: inset 0 1px 0 rgba(255, 255, 255, 0.6);
  --zg-glass-shadow: 0 8px 30px rgba(17, 24, 39, 0.12), 0 1px 2px rgba(17, 24, 39, 0.06);

  --zg-mesh-1: rgba(0, 122, 255, 0.22);
  --zg-mesh-2: rgba(48, 200, 190, 0.18);
  --zg-mesh-3: rgba(94, 92, 230, 0.18);
  --zg-mesh-4: rgba(255, 120, 180, 0.14);
}

/* ----------------------------------------------------------------- tokens: dark */
[data-md-color-scheme="slate"] {
  --zg-bg: #000000;
  --zg-surface: #1c1c1e;
  --zg-surface-2: #2c2c2e;

  --zg-border: rgba(255, 255, 255, 0.14);
  --zg-border-strong: rgba(255, 255, 255, 0.24);

  --zg-text: #f5f5f7;
  --zg-text-muted: rgba(235, 235, 245, 0.6);
  --zg-text-subtle: rgba(235, 235, 245, 0.4);

  --zg-accent: #0a84ff;
  --zg-accent-hover: #3b9bff;
  --zg-accent-soft: rgba(10, 132, 255, 0.22);
  --zg-on-accent: #ffffff;

  --zg-success: #30d158;
  --zg-warning: #ff9f0a;
  --zg-danger: #ff453a;
  --zg-indigo: #7d7aff;

  --zg-glass-chrome-bg: rgba(28, 28, 30, 0.6);
  --zg-glass-surface-bg: rgba(44, 44, 46, 0.62);
  --zg-glass-highlight: inset 0 1px 0 rgba(255, 255, 255, 0.1);
  --zg-glass-shadow: 0 8px 30px rgba(0, 0, 0, 0.5), 0 1px 2px rgba(0, 0, 0, 0.4);

  --zg-mesh-1: rgba(10, 132, 255, 0.28);
  --zg-mesh-2: rgba(48, 209, 190, 0.2);
  --zg-mesh-3: rgba(94, 92, 230, 0.24);
  --zg-mesh-4: rgba(255, 90, 160, 0.16);
}

/* --------------------------------------------------- shape / blur / motion tokens */
[data-md-color-scheme] {
  --zg-radius-sm: 12px;
  --zg-radius: 12px;
  --zg-radius-lg: 18px;
  --zg-radius-xl: 26px;
  --zg-radius-pill: 9999px;

  --zg-glass-blur: 24px;
  --zg-glass-saturate: 180%;

  --zg-ease-spring: cubic-bezier(0.22, 1, 0.36, 1);
}

/* =============================================================================
   Map Material's variables onto the zGentic tokens.
   ========================================================================== */
[data-md-color-scheme="default"],
[data-md-color-scheme="slate"] {
  --md-primary-fg-color: var(--zg-accent);
  --md-primary-fg-color--light: var(--zg-accent-hover);
  --md-primary-fg-color--dark: var(--zg-accent-hover);
  --md-primary-bg-color: var(--zg-on-accent);
  --md-primary-bg-color--light: var(--zg-on-accent);

  --md-accent-fg-color: var(--zg-accent-hover);
  --md-accent-fg-color--transparent: var(--zg-accent-soft);
  --md-accent-bg-color: var(--zg-on-accent);

  --md-default-bg-color: var(--zg-bg);
  --md-default-fg-color: var(--zg-text);
  --md-default-fg-color--light: var(--zg-text-muted);
  --md-default-fg-color--lighter: var(--zg-text-subtle);
  --md-default-fg-color--lightest: var(--zg-border);

  --md-typeset-color: var(--zg-text);
  --md-typeset-a-color: var(--zg-accent);
  --md-typeset-mark-color: var(--zg-accent-soft);
  --md-typeset-del-color: var(--zg-danger);
  --md-typeset-ins-color: var(--zg-success);

  --md-code-bg-color: var(--zg-surface-2);
  --md-code-fg-color: var(--zg-text);
  --md-code-hl-comment-color: var(--zg-text-subtle);
  --md-code-hl-string-color: var(--zg-success);
  --md-code-hl-keyword-color: var(--zg-indigo);

  --md-footer-bg-color: var(--zg-surface);
  --md-footer-bg-color--dark: var(--zg-surface-2);
  --md-footer-fg-color: var(--zg-text);
  --md-footer-fg-color--light: var(--zg-text-muted);
  --md-footer-fg-color--lighter: var(--zg-text-subtle);

  --md-admonition-bg-color: var(--zg-glass-surface-bg);
  --md-admonition-fg-color: var(--zg-text);

  --md-shadow-z1: var(--zg-glass-shadow);
  --md-shadow-z2: var(--zg-glass-shadow);
  --md-shadow-z3: var(--zg-glass-shadow);
}

/* =============================================================================
   Ambient canvas — the tint mesh the glass reads against (same recipe as the app).
   ========================================================================== */
body {
  background-color: var(--zg-bg);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(60rem 40rem at 12% -10%, var(--zg-mesh-1), transparent 60%),
    radial-gradient(50rem 36rem at 92% 4%, var(--zg-mesh-2), transparent 60%),
    radial-gradient(46rem 34rem at 78% 96%, var(--zg-mesh-3), transparent 62%),
    radial-gradient(40rem 30rem at 4% 88%, var(--zg-mesh-4), transparent 62%);
}

/* =============================================================================
   Glass materials — chrome (header/tabs), surface (cards/admonitions/tables).
   ========================================================================== */
.md-header,
.md-tabs {
  background-color: var(--zg-glass-chrome-bg);
  color: var(--zg-text);
  -webkit-backdrop-filter: saturate(var(--zg-glass-saturate)) blur(var(--zg-glass-blur));
  backdrop-filter: saturate(var(--zg-glass-saturate)) blur(var(--zg-glass-blur));
  box-shadow: var(--zg-glass-highlight), var(--zg-glass-shadow);
}

.md-tabs {
  box-shadow: none;
  border-bottom: 1px solid var(--zg-border);
}

.md-header__title,
.md-header__button,
.md-tabs__link {
  color: var(--zg-text);
}

.md-search__form {
  background-color: var(--zg-glass-surface-bg);
  border: 1px solid var(--zg-border);
  border-radius: var(--zg-radius-pill);
  -webkit-backdrop-filter: blur(var(--zg-glass-blur));
  backdrop-filter: blur(var(--zg-glass-blur));
  box-shadow: none;
}

.md-search__form:hover {
  background-color: var(--zg-surface);
}

.md-search__input,
.md-search__input::placeholder {
  color: var(--zg-text-muted);
}

.md-search__output {
  border-radius: var(--zg-radius-lg);
}

/* Nav + table of contents */
.md-nav__title {
  color: var(--zg-text);
}

/* On desktop the sidebar sits directly on the ambient canvas — drop Material's opaque
   title plate + its matching "fade" box-shadow (both keyed to --md-default-bg-color), which
   would otherwise punch a solid rectangle through the tint mesh. Specificity has to match
   Material's own `.md-nav--primary .md-nav__title` rule. */
@media screen and (min-width: 76.25em) {
  .md-nav--primary .md-nav__title,
  .md-nav--secondary .md-nav__title {
    background-color: transparent;
    box-shadow: none;
  }
}

.md-nav__link--active,
.md-nav__link--active code {
  color: var(--zg-accent);
}

.md-nav__item .md-nav__link:hover {
  color: var(--zg-accent-hover);
}

/* Below that breakpoint the nav IS the mobile drawer, so its header stays a glass sheet. */
@media screen and (max-width: 76.1875em) {
  .md-nav--primary .md-nav__title {
    background-color: var(--zg-glass-chrome-bg);
    -webkit-backdrop-filter: blur(var(--zg-glass-blur));
    backdrop-filter: blur(var(--zg-glass-blur));
  }

  .md-nav--primary {
    background-color: var(--zg-surface);
  }
}

/* -------------------------------------------------------------- glass panels */
.md-typeset .admonition,
.md-typeset details,
.md-typeset .tabbed-set > .tabbed-content {
  background-color: var(--zg-glass-surface-bg);
  border: 1px solid var(--zg-border);
  border-left-width: 1px;
  border-radius: var(--zg-radius-lg);
  -webkit-backdrop-filter: saturate(var(--zg-glass-saturate)) blur(var(--zg-glass-blur));
  backdrop-filter: saturate(var(--zg-glass-saturate)) blur(var(--zg-glass-blur));
  box-shadow: var(--zg-glass-highlight), var(--zg-glass-shadow);
}

.md-typeset .admonition-title,
.md-typeset summary {
  background-color: transparent;
  border: none;
  color: var(--zg-text);
}

/* Tables read as a card. */
.md-typeset table:not([class]) {
  background-color: var(--zg-glass-surface-bg);
  border: 1px solid var(--zg-border);
  border-radius: var(--zg-radius-lg);
  box-shadow: var(--zg-glass-highlight), var(--zg-glass-shadow);
  -webkit-backdrop-filter: blur(var(--zg-glass-blur));
  backdrop-filter: blur(var(--zg-glass-blur));
  overflow: hidden;
}

.md-typeset table:not([class]) th {
  background-color: var(--zg-surface-2);
  color: var(--zg-text);
}

.md-typeset table:not([class]) td {
  border-top: 1px solid var(--zg-border);
}

/* Code blocks + inline code */
.md-typeset code,
.md-typeset pre > code {
  border-radius: var(--zg-radius-sm);
}

.md-typeset .highlight > pre,
.md-typeset pre {
  border-radius: var(--zg-radius);
}

.md-typeset .highlight {
  border: 1px solid var(--zg-border);
  border-radius: var(--zg-radius);
  overflow: hidden;
}

/* Blockquotes get the accent hairline. */
.md-typeset blockquote {
  border-left: 3px solid var(--zg-accent-soft);
  color: var(--zg-text-muted);
}

/* Links + buttons */
.md-typeset a {
  transition: color 0.15s var(--zg-ease-spring);
}

.md-typeset a:hover {
  color: var(--zg-accent-hover);
}

.md-typeset .md-button {
  border-radius: var(--zg-radius-pill);
  border-color: var(--zg-border-strong);
}

.md-typeset .md-button--primary {
  background-color: var(--zg-accent);
  border-color: var(--zg-accent);
  color: var(--zg-on-accent);
}

/* Footer */
.md-footer {
  background-color: var(--zg-glass-chrome-bg);
  -webkit-backdrop-filter: blur(var(--zg-glass-blur));
  backdrop-filter: blur(var(--zg-glass-blur));
  border-top: 1px solid var(--zg-border);
}

.md-footer-meta {
  background-color: transparent;
  color: var(--zg-text-muted);
}

/* Headings: slightly tighter tracking, like the app's iOS type ramp. */
.md-typeset h1,
.md-typeset h2,
.md-typeset h3 {
  color: var(--zg-text);
  letter-spacing: -0.02em;
  font-weight: 650;
}

/* ------------------------------------------------------------------ brand mark
   The zGentic mark shown as a small hero on the pages that introduce the product
   (Welcome, Release notes). A page opts in with a `.zg-hero` block; the image is
   always the LOCAL `assets/logo.svg` — the same file as the header logo and the
   favicon, so there is exactly one mark and no external request. The mark is a
   white glyph on the brand blue, legible on both schemes, so light and dark share
   one asset. The `alt` text carries the product name, so the page still reads
   correctly if the image fails to load or is announced by a screen reader. */
.md-typeset .zg-hero {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin: 0 0 1.5rem;
  padding: 0.8rem 1rem;
  background-color: var(--zg-glass-surface-bg);
  border: 1px solid var(--zg-border);
  border-radius: var(--zg-radius-lg);
  box-shadow: var(--zg-glass-highlight), var(--zg-glass-shadow);
  -webkit-backdrop-filter: saturate(var(--zg-glass-saturate)) blur(var(--zg-glass-blur));
  backdrop-filter: saturate(var(--zg-glass-saturate)) blur(var(--zg-glass-blur));
}

.md-typeset .zg-hero img {
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  margin: 0;
  border-radius: var(--zg-radius-sm);
}

.md-typeset .zg-hero p {
  margin: 0;
  min-width: 0;
}

.md-typeset .zg-hero .zg-hero-name {
  color: var(--zg-text);
  font-weight: 650;
  letter-spacing: -0.01em;
}

.md-typeset .zg-hero .zg-hero-sub {
  color: var(--zg-text-muted);
  font-size: 0.85em;
  line-height: 1.35;
}

/* =============================================================================
   Accessibility fallbacks — solid materials when the user reduces transparency
   or motion (mirrors the app's prefers-reduced-transparency handling).
   ========================================================================== */
@media (prefers-reduced-transparency: reduce) {
  .md-header,
  .md-tabs,
  .md-footer,
  .md-search__form,
  .md-typeset .admonition,
  .md-typeset details,
  .md-typeset .zg-hero,
  .md-typeset table:not([class]) {
    background-color: var(--zg-surface);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }

  body::before {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .md-typeset a {
    transition: none;
  }
}