/* Deterministic content tokens. Zensical continues to own renderer chrome. */

:root,
body[data-md-color-primary],
body[data-md-color-accent] {
  --primary: #756553;
  --accent: #756553;
  --accent-dark: #645747;
  --accent-darker: #514638;
  --accent-visited: #6a5d50;
  --accent-light: #91816d;
  --accent-lightest: #eee9e1;
  --accent-transparent: rgb(117 101 83 / 8%);
  --accent-transparent-strong: rgb(117 101 83 / 14%);
  --accent-contrast: #ffffff;
  --background: #f8f6f2;
  --surface: #ffffff;
  --text: #29251f;
  --muted: #625b50;
  --border: #aaa08d;
  --focus: #645747;
  --focus-contrast: #ffffff;
  --header-surface: #dce5dc;
  --header-text: #35483b;
  --header-hover: rgba(255, 255, 255, 0.10);
  --header-selected: rgba(255, 255, 255, 0.18);
  --neutral-callout: #666666;
  --gold-callout: #8a681e;
  --conditional: #a15c00;
  --conditional-transparent: rgb(161 92 0 / 10%);
  --success: #007f3b;
  --success-transparent: rgb(0 127 59 / 10%);
  --warning: #d5281b;
  --component-radius: .35rem;
  --component-radius-small: .2rem;
  --component-radius-large: .5rem;
  --diagram-node-radius: 5px;
  --component-border-width: 1px;
  --accent-rail-width: .3rem;
  --source-row-rail-width: .25rem;
  --technical-frame-border-width: 1.75px;
  --diagram-emphasis-line-width: 3px;
  --diagram-label-mask-width: 4px;
  --list-marker-indent: 1.2rem;
  --list-marker-size: 1em;
  --compact-data-font-size: .64rem;
  --diagram-text-size: var(--compact-data-font-size);
  --sequential-menu-rail-width: 1.5px;

  /* Material-compatible aliases consumed by the stock Zensical renderer. */
  --md-primary-fg-color: var(--primary);
  --md-primary-fg-color--light: var(--accent-light);
  --md-primary-fg-color--dark: var(--accent-dark);
  --md-primary-bg-color: var(--accent-contrast);
  --md-primary-bg-color--light: rgb(255 255 255 / 70%);
  --md-accent-fg-color: var(--accent);
  --md-accent-fg-color--transparent: var(--accent-transparent);
  --md-accent-bg-color: var(--accent-contrast);
  --md-accent-bg-color--light: rgb(255 255 255 / 70%);
  --md-typeset-a-color: var(--accent);
  --md-code-hl-color: var(--accent);
  --md-code-hl-color--light: var(--accent-transparent);
}

.md-typeset a {
  color: var(--accent);
  text-underline-offset: .13em;
}

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

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

.md-typeset a:active {
  color: var(--accent-darker);
}

.md-nav--primary .md-nav__link:is([href], [for]):hover:not(.md-nav__link--active),
.md-nav--secondary .md-nav__link:is([href], [for]):hover:not(.md-nav__link--active) {
  background-color: var(--accent-transparent);
  color: var(--accent-dark);
}

.md-nav--primary .md-nav__item--active > .md-nav__link,
.md-nav--primary .md-nav__item .md-nav__link--active,
.md-nav--secondary .md-nav__link--active {
  background-color: var(--accent-transparent);
  color: var(--accent-dark);
}

/* Retain lifecycle metadata without Zensical's fallback draft-status icon. */
.md-nav--primary .md-status--draft {
  display: none;
}

.md-header__button {
  color: var(--header-text);
}

.md-header {
  --focus: var(--header-text);
  --focus-contrast: var(--header-surface);
  background-color: var(--header-surface);
  color: var(--header-text);
}

.md-search__button {
  background-color: var(--header-hover);
  color: var(--header-text);
}

.md-header__button:hover {
  background-color: var(--header-hover);
  color: var(--header-text);
  opacity: 1;
}

.md-header__button:active {
  background-color: var(--header-selected);
  color: var(--header-text);
  opacity: 1;
}

.md-tabs__item--active {
  border-color: var(--accent);
}

.md-tabs__item--active .md-tabs__link,
.md-tabs__link:hover {
  color: var(--accent-dark);
}

.md-typeset .tabbed-labels {
  --md-default-fg-color: var(--accent-dark);
}

.js .md-typeset .tabbed-labels::before {
  background-color: var(--accent);
}

.md-typeset .tabbed-labels > label:hover,
.md-typeset a.md-tag[href]:hover {
  background-color: var(--accent-transparent);
  color: var(--accent-dark);
}

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

.md-typeset .md-button--primary:hover,
.md-typeset .md-button--primary:active {
  background-color: var(--accent-dark);
  border-color: var(--accent-dark);
  color: var(--accent-contrast);
  opacity: 1;
}

.md-typeset .md-button:not(.md-button--primary):hover {
  border-color: var(--accent);
  color: var(--accent-dark);
}

.md-typeset :is(input[type="checkbox"], input[type="radio"], select) {
  accent-color: var(--accent);
}

/* A small, unframed project image alongside the homepage title. */
.md-typeset .home-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem;
  margin-block-end: 1.5rem;
}

.md-typeset .home-heading h1 {
  margin: 0;
}

.md-typeset .home-mark img {
  display: block;
  width: 5rem;
  height: auto;
}

@media (max-width: 600px) {
  .md-typeset .home-heading {
    gap: .75rem;
  }

  .md-typeset .home-mark img {
    width: 4rem;
  }
}

/* Default authored callout: compact text and a slim rail, without a panel. */
.md-typeset .callout,
.md-typeset blockquote.governing-question,
.md-typeset .model-summary {
  margin: 1em 0;
  padding: 0;
  padding-inline-start: .6rem;
  border: 0;
  border-inline-start: .2rem solid var(--accent);
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  color: var(--accent);
  font-weight: 700;
}

.md-typeset .callout > :first-child,
.md-typeset blockquote.governing-question > :first-child,
.md-typeset .model-summary > :first-child {
  margin-block-start: 0;
}

.md-typeset .callout > :last-child,
.md-typeset blockquote.governing-question > :last-child,
.md-typeset .model-summary > :last-child {
  margin-block-end: 0;
}

.md-typeset blockquote.governing-question {
  border-inline-start-color: var(--accent);
}

.md-typeset blockquote.governing-question > p {
  color: var(--accent);
  font-weight: 700;
}

.md-typeset .admonition.note,
.md-typeset details.note {
  background-color: var(--accent-transparent);
}

.md-typeset .admonition.note > .admonition-title::before,
.md-typeset details.note > summary::before {
  background-color: var(--accent);
}

.md-typeset .md-input:hover,
.md-typeset .md-input:focus {
  border-color: var(--accent);
}

.md-typeset a:is(:focus-visible, .focus-visible),
.md-typeset button:is(:focus-visible, .focus-visible),
.md-typeset input:is(:focus-visible, .focus-visible),
.md-typeset select:is(:focus-visible, .focus-visible),
.md-nav__link:is(:focus-visible, .focus-visible),
.md-header__button:is(:focus-visible, .focus-visible),
.md-search__button:is(:focus-visible, .focus-visible),
.md-tabs__link:is(:focus-visible, .focus-visible),
.md-select__link:is(:focus-visible, .focus-visible),
input.md-option:is(:focus-visible, .focus-visible) + label,
.layout-width-toggle:is(:focus-visible, .focus-visible) {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
  box-shadow: 0 0 0 1px var(--focus-contrast);
}

.md-typeset .requirement-tier {
  border: var(--component-border-width) solid var(--border);
  border-left: var(--accent-rail-width) solid var(--accent);
  border-radius: var(--component-radius);
  background: var(--accent-transparent);
  margin: 1rem 0;
  padding: .85rem 1rem;
}

.md-typeset .requirement-tier h3 {
  color: var(--primary);
  margin: 0 0 .35rem;
}

.md-typeset .tier-envelope {
  background: var(--conditional-transparent);
  border-left-color: var(--conditional);
}

.md-typeset .tier-envelope h3 {
  color: var(--conditional);
}

.md-typeset .tier-ceiling {
  background: var(--success-transparent);
  border-left-color: var(--success);
}

.md-typeset .tier-ceiling h3 {
  color: var(--success);
}

.md-typeset .status-pill {
  border-radius: 999px;
  display: inline-block;
  font-size: .75rem;
  font-weight: 700;
  line-height: 1.35;
  padding: .12rem .45rem;
}

.md-typeset table {
  border: var(--component-border-width) solid var(--border);
  border-radius: var(--component-radius);
  font-size: var(--compact-data-font-size);
}

.md-typeset ul:not(.task-list) {
  list-style-type: square;
  margin-inline-start: 0;
  padding-inline-start: var(--list-marker-indent);
}

.md-typeset ul:not(.task-list) > li {
  margin-inline-start: 0;
}

.md-typeset ul:not(.task-list) > li::marker {
  color: var(--text);
  font-size: var(--list-marker-size);
}

.md-nav--secondary .md-nav__list {
  border-inline-start: var(--sequential-menu-rail-width) solid var(--border);
}

.md-nav--secondary .md-nav__link {
  color: var(--muted);
}

.md-nav--secondary .md-nav__link--active {
  color: var(--accent-dark);
  font-weight: 700;
}

.md-typeset table tr:target {
  background: var(--accent-lightest);
  box-shadow: inset var(--source-row-rail-width) 0 0 var(--accent);
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.md-typeset table tr:has(span:target) {
  background: var(--accent-lightest);
  box-shadow: inset var(--source-row-rail-width) 0 0 var(--accent);
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.md-typeset table tr:target a,
.md-typeset table tr:has(span:target) a {
  color: var(--accent-dark);
}

.md-typeset table tr:target a:hover,
.md-typeset table tr:has(span:target) a:hover {
  color: var(--accent-darker);
}

.md-typeset__table {
  max-width: 100%;
  overflow-x: auto;
}

.md-typeset .mermaid {
  border: 0;
  background: transparent;
  display: grid;
  justify-items: safe center;
  max-width: 100%;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  padding: 0;
}

.md-typeset .mermaid .node rect,
.md-typeset .mermaid .node polygon {
  rx: var(--diagram-node-radius);
  ry: var(--diagram-node-radius);
  fill: var(--accent-lightest) !important;
  stroke: var(--accent) !important;
}

.md-typeset .mermaid .edgePath path,
.md-typeset .mermaid .flowchart-link,
.md-typeset .mermaid .messageLine0,
.md-typeset .mermaid .messageLine1 {
  stroke: var(--accent) !important;
}

.md-typeset .mermaid .edge-thickness-thick {
  stroke-width: var(--diagram-emphasis-line-width) !important;
}

.md-typeset .mermaid .edge-pattern-dotted {
  stroke: var(--accent-light) !important;
}

.md-typeset .mermaid marker path,
.md-typeset .mermaid .arrowheadPath {
  fill: var(--accent) !important;
  stroke: var(--accent) !important;
}

.md-typeset .mermaid .cluster rect {
  fill: var(--accent-transparent) !important;
  stroke: var(--accent-light) !important;
  rx: var(--component-radius-large);
  ry: var(--component-radius-large);
}

.md-typeset .mermaid .cluster-label text {
  fill: var(--accent-dark) !important;
  font-weight: 700 !important;
  paint-order: stroke !important;
  stroke: var(--background) !important;
  stroke-linejoin: round !important;
  stroke-width: var(--diagram-label-mask-width) !important;
}

.md-typeset .mermaid .node.kb-source :is(rect, polygon, circle, ellipse, path) {
  fill: var(--surface) !important;
  stroke: var(--accent-light) !important;
}

.md-typeset .mermaid .node:is(.kb-evidence, .kb-product) :is(rect, polygon, circle, ellipse, path) {
  fill: var(--accent-lightest) !important;
  stroke: var(--accent) !important;
}

.md-typeset .mermaid .node.kb-snapshot :is(rect, polygon, circle, ellipse, path) {
  fill: var(--accent-transparent-strong) !important;
  stroke: var(--accent) !important;
}

.md-typeset .mermaid .node:is(.kb-normative, .kb-canonical) :is(rect, polygon, circle, ellipse, path) {
  fill: var(--accent) !important;
  stroke: var(--accent-darker) !important;
}

.md-typeset .mermaid .node.kb-derived :is(rect, polygon, circle, ellipse, path) {
  fill: var(--surface) !important;
  stroke: var(--accent-light) !important;
  stroke-dasharray: 4 3 !important;
}

.md-typeset .mermaid .node.kb-consumer :is(rect, polygon, circle, ellipse, path) {
  fill: var(--surface) !important;
  stroke: var(--accent-dark) !important;
}

.md-typeset .mermaid .node.kb-verification :is(rect, polygon, circle, ellipse, path) {
  fill: var(--accent-dark) !important;
  stroke: var(--accent-darker) !important;
}

.md-typeset .mermaid .node:is(.kb-normative, .kb-canonical, .kb-verification) :is(.nodeLabel, .label, text) {
  color: var(--accent-contrast) !important;
  fill: var(--accent-contrast) !important;
  font-weight: 700 !important;
}

.md-typeset .mermaid .nodeLabel,
.md-typeset .mermaid .edgeLabel,
.md-typeset .mermaid .label,
.md-typeset .mermaid text {
  color: var(--text) !important;
  fill: var(--text) !important;
  font-size: var(--diagram-text-size) !important;
}

.md-typeset .mermaid foreignObject,
.md-typeset .mermaid foreignObject div,
.md-typeset .mermaid foreignObject span,
.md-typeset .mermaid foreignObject p {
  font-size: var(--diagram-text-size) !important;
  line-height: 1.2 !important;
}

.md-typeset .mermaid .note {
  fill: #fff4e5 !important;
  stroke: #8a4b00 !important;
}

.md-typeset .mermaid .activation0,
.md-typeset .mermaid .activation1,
.md-typeset .mermaid .activation2 {
  fill: var(--accent-lightest) !important;
  stroke: var(--accent) !important;
}

@media (prefers-reduced-motion: reduce) {
  .md-typeset *,
  .layout-width-toggle {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
  }
}

/* Both native Zensical palettes resolve the same semantic colour roles. */
:root,
body[data-md-color-scheme] {
  color-scheme: light;
  --md-default-bg-color: var(--background);
  --md-default-fg-color: var(--text);
  --md-default-fg-color--light: var(--muted);
  --md-default-fg-color--lighter: var(--border);
  --md-default-fg-color--lightest: rgba(0, 0, 0, 0.05);
  --md-code-fg-color: var(--text);
  --md-code-bg-color: var(--surface);
  --md-typeset-color: var(--text);
  --md-typeset-table-color: var(--border);
  --md-typeset-table-color--light: var(--surface);
}

body[data-md-color-scheme="slate"] {
  color-scheme: dark;
  --primary: #d8cbb8;
  --accent: #c4b39a;
  --accent-dark: #d4c3ac;
  --accent-darker: #e4d7c4;
  --accent-visited: #c4b3a1;
  --accent-light: #ac9980;
  --accent-lightest: #3b342b;
  --accent-transparent: rgb(196 179 154 / 8%);
  --accent-transparent-strong: rgb(196 179 154 / 14%);
  --accent-contrast: #201c17;
  --background: #201c17;
  --surface: #2b251d;
  --text: #f2ece3;
  --muted: #c8beb0;
  --border: #948774;
  --focus: #d4c3ac;
  --focus-contrast: #201c17;
  --header-surface: #3e4941;
  --header-text: #f2ece3;
  --neutral-callout: #f2ece3;
  --gold-callout: #d1b25e;
  --conditional: #edbc74;
  --success: #90d7aa;
  --warning: #ffa69e;
  --md-default-fg-color--lightest: rgba(255, 255, 255, 0.06);
}

body { background: var(--background); color: var(--text); }

/* Keep the native radio/label control available when Wide is hidden. */
.md-header__option[data-md-component="palette"] {
  flex: 0 0 auto;
}

@media print {
  .md-header__option[data-md-component="palette"] {
    display: none !important;
  }
}

/* The three user-selected brand colours remain explicit; text uses qualified variants. */
:root, body[data-md-color-scheme] {
  --brand-main: #966e2c; --brand-secondary: #658a6e; --brand-third: #684b34;
  --secondary: #4c6b54; --secondary-surface: #edf2ed; --tertiary: #6a5d50;
}
body[data-md-color-scheme="slate"] { --secondary: #a9c8af; --secondary-surface: #283a2c; --tertiary: #c4b3a1; }
.md-typeset h1 { color: var(--tertiary); }
.md-typeset h2 { border-bottom: 2px solid var(--brand-secondary); padding-bottom: .25em; }
.md-typeset .callout--secondary,
.md-typeset .model-summary {
  border-inline-start-color: var(--secondary);
  color: var(--secondary);
}
.md-typeset .model-summary strong { color: var(--secondary); }
.md-typeset .model-summary .model-summary-detail { font-weight: 400; }

/* Explanatory callouts share the compact geometry with neutral ink. */
.md-typeset .callout--neutral {
  border-inline-start-color: var(--neutral-callout);
  color: var(--neutral-callout);
}
.md-typeset .callout--neutral a,
.md-typeset .callout--neutral a:visited {
  color: inherit;
}

.md-typeset .callout--gold {
  border-inline-start-color: var(--gold-callout);
  color: var(--gold-callout);
}
.md-typeset .callout--gold a,
.md-typeset .callout--gold a:visited {
  color: inherit;
}