/*
 * Alethia: a portable copy of the editor's visual language.
 *
 * Paper ground, ink, hard rules, one hot orange. See README.md in this folder
 * for the reasoning behind every value; this file is the drop-in form.
 *
 * Layers, in order:
 *   1. Fonts       bundled woff2 (latin subset), relative to this file
 *   2. Tokens      the app's own custom-property names, plus a few additions
 *   3. Base        page ground, selection
 *   4. Chrome      .al-* components: titlebar, tabs, rows, buttons, bars
 *   5. Prose       .al-prose: semantic HTML set the way the editor renders it
 *   6. Code        token colours for CodeMirror (tok-*), highlight.js, Prism
 *   7. Print       monochrome, for thermal and laser printers alike
 *
 * Scope: nothing here applies until an element opts in. Tokens, colour-scheme
 * and theme live on `.al-page`, `.al-prose` or `[data-al-theme]` (any of
 * them may be <html>, <body> or a wrapper div); loading this file on a page
 * that has none of those changes nothing on it. Only the outermost scope
 * defines tokens, so nested ones inherit its theme.
 *
 * Theme: follows prefers-color-scheme. Force one with data-al-theme="light"
 * or data-al-theme="dark" on the wrapper (or any element inside it).
 */

/* 1. Fonts ---------------------------------------------------------------- */

@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('fonts/archivo-latin-400-normal.woff2') format('woff2');
}

@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('fonts/archivo-latin-600-normal.woff2') format('woff2');
}

@font-face {
  font-family: 'Archivo Black';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('fonts/archivo-black-latin-400-normal.woff2') format('woff2');
}

@font-face {
  font-family: 'DM Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('fonts/dm-mono-latin-400-normal.woff2') format('woff2');
}

@font-face {
  font-family: 'DM Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('fonts/dm-mono-latin-500-normal.woff2') format('woff2');
}

/* 2. Tokens --------------------------------------------------------------- */

/* Tokens are defined on the outermost scope element only: the first of
   .al-page, .al-prose or [data-al-theme] on the way down from the root, so a
   .al-prose inside .al-page inherits the page's theme instead of resetting it.
   An explicit data-al-theme="light" or "dark" always wins on its own element.
   :where() keeps the light base at zero specificity so the theme rules beat
   it without !important. */
:where(
    :is(.al-page, .al-prose, [data-al-theme]):not(
        :is(.al-page, .al-prose, [data-al-theme]) *
      )
  ),
:where([data-al-theme='light']) {
  /* Ground and ink. */
  --bg: #f2f0eb;
  --text: #111111;
  --text-muted: #5f5c55;
  --border: #111111;

  /* The spot colour. --accent is the readable one on the current ground;
     --accent-hot is the signal orange, used only as a fill under ink or as
     text on black. */
  --accent: #b52900;
  --accent-hot: #ff3b00;
  /* Text set on a fill. Ink on hot is fixed in both themes; text on
     --accent flips because --accent itself flips. */
  --on-hot: #111111;
  --on-accent: #f2f0eb;

  --selection: #f5e0d6;

  /* The code well is black in both themes. */
  --code-bg: #111111;
  --code-fg: #f2f0eb;
  --code-keyword: #ff3b00;
  --code-number: #ff3b00;
  --code-property: #ff3b00;
  --code-type: #ff9166;
  --code-string: #d8cfc0;
  --code-function: #f2f0eb;
  --code-comment: #8a8780;
  --code-operator: #8a8780;

  /* Faces. */
  --font-prose: 'Archivo', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-display: 'Archivo Black', 'Archivo', Impact, system-ui, sans-serif;
  --font-mono: 'DM Mono', ui-monospace, SFMono-Regular, 'SF Mono', Menlo, monospace;

  /* Rules: the four weights of line the system uses. */
  --rule-thin: 2px;   /* control borders, table cells, toolbar dividers */
  --rule: 3px;        /* structural: panes, bars, tabs */
  --rule-heavy: 6px;  /* horizontal rule in prose */
  --rule-slab: 8px;   /* blockquote slab */

  /* Layout. */
  --titlebar-h: 38px;
  --sidebar-w: 260px;
  --measure: 46rem;
  --leading: 1.65;
  /* One empty line of body text: the gap between blocks. */
  --gap: 1.65rem;

  /* Chrome type sizes (all DM Mono). */
  --size-micro: 0.62rem;
  --size-label: 0.66rem;
  --size-ui: 0.7rem;
  --size-note: 0.72rem;
  --size-row: 0.75rem;
  --size-panel: 0.78rem;

  color-scheme: light;
}

/* Dark inverts the paper rather than softening it. */
@media (prefers-color-scheme: dark) {
  :where(
      :is(.al-page, .al-prose, [data-al-theme]):not(
          :is(.al-page, .al-prose, [data-al-theme]) *
        )
    ):not([data-al-theme='light']) {
    --bg: #111111;
    --text: #f2f0eb;
    --text-muted: #a3a099;
    --border: #f2f0eb;
    --accent: #ff5722;
    --on-accent: #111111;
    --selection: #4a2418;
    --code-bg: #000000;
    color-scheme: dark;
  }
}

[data-al-theme='dark'] {
  --bg: #111111;
  --text: #f2f0eb;
  --text-muted: #a3a099;
  --border: #f2f0eb;
  --accent: #ff5722;
  --on-accent: #111111;
  --selection: #4a2418;
  --code-bg: #000000;
  color-scheme: dark;
}

/* 3. Base ----------------------------------------------------------------- */

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

.al-page {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-prose);
  -webkit-font-smoothing: antialiased;
}

.al-page ::selection {
  background: var(--selection);
}

/* Keyboard focus: a hard accent outline, never a glow. */
.al-page :focus-visible {
  outline: var(--rule-thin) solid var(--accent);
  outline-offset: 2px;
}

/* On a band the accent falls below 3:1 (an ink band) or nearly vanishes (hot),
   so a band's controls take the band's own text colour. */
.al-page .al-titlebar :focus-visible,
.al-page .al-tabs > :is(.is-active, [aria-selected='true'], [aria-current='page']):focus-visible {
  outline-color: var(--bg);
}

.al-page .al-banner :focus-visible,
.al-page .al-pin :focus-visible,
.al-page .al-row:is(.is-current, [aria-current='true'], [aria-current='page']):focus-visible {
  outline-color: var(--on-hot);
}

/* Rows and tabs run edge to edge inside a clipping, scrolling sidebar, which
   would cut the sides off an outline drawn outside them. */
.al-page .al-sidebar :focus-visible {
  outline-offset: -2px;
}

/* Checkboxes are drawn, because the native box has rounded corners. Empty, a
   2px square rule in the text colour; checked, a solid accent square. Zero
   specificity, so a checkbox's own spacing wins. */
:where(.al-page, .al-prose) :where(input[type='checkbox']) {
  appearance: none;
  width: 0.85em;
  height: 0.85em;
  margin: 0;
  /* A form control's currentColor is the browser's, not the text's. */
  color: inherit;
  border: var(--rule-thin) solid currentColor;
  border-radius: 0;
  background: transparent;
  vertical-align: -0.1em;
}

:where(.al-page, .al-prose) :where(input[type='checkbox']:checked) {
  background: var(--accent);
  border-color: var(--accent);
}

/* 4. Chrome --------------------------------------------------------------- */

/* Mono label voice: the default for every piece of chrome. */
.al-label {
  font-family: var(--font-mono);
  font-size: var(--size-label);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* Titlebar: an inverted band. */
.al-titlebar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  height: var(--titlebar-h);
  padding: 0 0.75rem;
  background: var(--border);
  color: var(--bg);
  -webkit-user-select: none;
  user-select: none;
}

.al-titlebar-name {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: var(--size-note);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* Unsaved or pending state: a hot square, never a soft dot. */
.al-dirty {
  display: inline-block;
  width: 7px;
  height: 7px;
  background: var(--accent-hot);
}

.al-icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  padding: 0;
  border: none;
  background: transparent;
  color: inherit;
  cursor: pointer;
}

.al-icon-button:hover {
  background: var(--accent-hot);
  color: var(--on-hot);
}

/* Workspace switcher: the open folder's name above the tabs. It behaves like
   a row, so it hovers like one. */
.al-workspace {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.4rem;
  width: 100%;
  padding: 0.5rem 0.6rem;
  border: none;
  border-bottom: var(--rule) solid var(--border);
  background: transparent;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: var(--size-ui);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: left;
  cursor: pointer;
}

.al-workspace:hover {
  background: var(--selection);
}

.al-workspace-caret {
  flex: none;
  color: var(--text-muted);
}

/* Tabs: equal cells under a structural rule; the active one inverts. */
.al-tabs {
  display: flex;
  border-bottom: var(--rule) solid var(--border);
}

.al-tabs > button,
.al-tabs > a {
  flex: 1;
  padding: 0.55rem 0;
  border: none;
  background: transparent;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: var(--size-label);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
}

.al-tabs > .is-active,
.al-tabs > [aria-selected='true'],
.al-tabs > [aria-current='page'] {
  background: var(--border);
  color: var(--bg);
}

/* Rows: lists of files, outline entries, versions, settings. */
.al-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.3rem 0.6rem;
  border: none;
  background: transparent;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: var(--size-row);
  letter-spacing: 0.02em;
  text-align: left;
  text-decoration: none;
  cursor: pointer;
}

.al-row:hover {
  background: var(--selection);
}

.al-row.is-current,
.al-row[aria-current='true'],
.al-row[aria-current='page'] {
  background: var(--accent-hot);
  color: var(--on-hot);
  font-weight: 500;
}

.al-row-label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.al-row-meta {
  margin-left: auto;
  flex: 0 0 auto;
  color: var(--text-muted);
  font-size: 0.68rem;
}

.al-row.is-current .al-row-meta {
  color: inherit;
}

.al-row-dir {
  color: var(--text-muted);
}

/* Empty and explanatory states: muted mono, full sentences. */
.al-empty {
  padding: 1rem 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: var(--size-note);
  letter-spacing: 0.02em;
}

/* A muted micro-caps label above a short list inside an empty state. */
.al-list-heading {
  margin: 1rem 0 0.25rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: var(--size-micro);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* Button: an outlined slab that inverts on hover. */
.al-button {
  display: inline-block;
  padding: 0.4rem 0.8rem;
  border: var(--rule-thin) solid var(--border);
  border-radius: 0;
  background: transparent;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: var(--size-ui);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
}

.al-button:hover {
  background: var(--border);
  color: var(--bg);
}

.al-button:disabled {
  border-style: dashed;
  color: var(--text-muted);
  background: transparent;
  cursor: default;
}

/* Text input: square, thin rule, accent rule while editing. */
.al-input {
  border: var(--rule-thin) solid var(--border);
  border-radius: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: var(--size-row);
  padding: 1px 4px;
  outline: none;
}

.al-input:focus {
  border-color: var(--accent);
}

/* Toolbar: a strip of mono glyph buttons, groups split by a thin rule. */
.al-toolbar {
  display: flex;
  align-items: stretch;
  border-bottom: var(--rule) solid var(--border);
  background: var(--bg);
  -webkit-user-select: none;
  user-select: none;
}

.al-toolbar-group {
  display: flex;
  align-items: stretch;
}

.al-toolbar-rule {
  width: var(--rule-thin);
  margin: 0.35rem 0.4rem;
  background: var(--border);
}

.al-toolbar-button {
  min-width: 2.1rem;
  padding: 0.4rem 0.5rem;
  border: none;
  background: transparent;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: var(--size-ui);
  font-weight: 500;
  letter-spacing: 0.06em;
  cursor: pointer;
}

.al-toolbar-button:hover {
  background: var(--accent-hot);
  color: var(--on-hot);
}

.al-toolbar-button:active,
.al-toolbar-button[aria-pressed='true'] {
  background: var(--border);
  color: var(--bg);
}

/* Banner: a hot band for things that need a decision. */
.al-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.5rem 1rem;
  background: var(--accent-hot);
  color: var(--on-hot);
  border-bottom: var(--rule) solid var(--border);
  font-family: var(--font-mono);
  font-size: var(--size-note);
  letter-spacing: 0.02em;
}

.al-banner-actions {
  display: flex;
  flex: 0 0 auto;
  gap: 0.4rem;
}

.al-banner .al-button {
  border-color: var(--on-hot);
  color: var(--on-hot);
}

.al-banner .al-button:hover {
  background: var(--on-hot);
  color: var(--accent-hot);
}

/* Pin: a smaller hot strip that scopes a panel to one thing. */
.al-pin {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
  padding: 0.35rem 0.6rem;
  background: var(--accent-hot);
  color: var(--on-hot);
  font-family: var(--font-mono);
  font-size: var(--size-ui);
}

.al-pin > button {
  flex: 0 0 auto;
  border: none;
  background: transparent;
  color: var(--on-hot);
  font-family: var(--font-mono);
  font-size: var(--size-micro);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
}

/* Status bar: counts on the left, identity in accent on the right. */
.al-statusbar {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.4rem 1rem;
  border-top: var(--rule) solid var(--border);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: var(--size-label);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.al-statusbar-right {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--accent);
}

/* Badge: a mode that is on. Inverted, square, no border. */
.al-badge {
  display: inline-block;
  padding: 0.05rem 0.4rem;
  background: var(--border);
  color: var(--bg);
  font-family: var(--font-mono);
  font-size: var(--size-label);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* Panes: two columns divided by a structural rule. */
.al-shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  grid-template-rows: auto 1fr;
  min-height: 0;
}

.al-shell > .al-titlebar {
  grid-column: 1 / -1;
}

.al-sidebar {
  display: flex;
  flex-direction: column;
  min-width: 0;
  border-right: var(--rule) solid var(--border);
  overflow: hidden;
}

.al-sidebar-body {
  flex: 1 1 auto;
  overflow: auto;
  padding: 0.25rem 0 1rem;
}

.al-main {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
}

.al-main > .al-scroll {
  flex: 1 1 auto;
  overflow: auto;
}

/* Focus mode: everything outside the current block recedes. */
.al-dim {
  opacity: 0.25;
  transition: opacity 0.2s ease;
}

@media (prefers-reduced-motion: reduce) {
  .al-dim {
    transition: none;
  }
}

/* 5. Prose ---------------------------------------------------------------- */

.al-prose {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 2.5rem 2rem;
  color: var(--text);
  font-family: var(--font-prose);
  font-size: 1rem;
  line-height: var(--leading);
  caret-color: var(--accent);
}

/* Blocks are separated by one empty line of body text, as in the editor. */
.al-prose > * {
  margin-top: 0;
  margin-bottom: var(--gap);
}

.al-prose > :last-child {
  margin-bottom: 0;
}

.al-prose :is(h1, h2, h3, h4) {
  font-family: var(--font-display);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  line-height: 1.05;
}

.al-prose h1 { font-size: 2.3em; }
.al-prose h2 { font-size: 1.55em; }
.al-prose h3 { font-size: 1.2em; }
.al-prose h4 { font-size: 1.02em; letter-spacing: 0; }

/* Below h4 the display face stops reading as a heading; switch to the label
   voice. */
.al-prose :is(h5, h6) {
  font-family: var(--font-mono);
  font-size: 0.85em;
  font-weight: 500;
  letter-spacing: 0.12em;
  line-height: 1.5;
  text-transform: uppercase;
}

.al-prose h6 {
  color: var(--text-muted);
}

.al-prose :is(strong, b) {
  font-weight: 600;
  box-shadow: inset 0 -3px 0 var(--accent-hot);
}

.al-prose :is(em, i) {
  font-style: italic;
}

.al-prose :is(del, s) {
  color: var(--text-muted);
  text-decoration: line-through;
  text-decoration-thickness: 2px;
}

.al-prose :not(pre) > code {
  padding: 0.05em 0.3em;
  background: var(--accent);
  color: var(--on-accent);
  font-family: var(--font-mono);
  font-size: 0.88em;
}

/* Links are filled, not underlined. */
.al-prose a {
  padding: 0 0.2em;
  background: var(--accent-hot);
  color: var(--on-hot);
  text-decoration: none;
}

.al-prose a:hover {
  background: var(--border);
  color: var(--bg);
}

.al-prose hr {
  height: 0;
  border: none;
  border-top: var(--rule-heavy) solid var(--border);
}

/* Blockquote: a slab rule and the display face. */
.al-prose blockquote {
  margin-left: 0;
  margin-right: 0;
  padding-left: 1em;
  border-left: var(--rule-slab) solid var(--border);
  font-family: var(--font-display);
  font-size: 1.05em;
  line-height: 1.35;
  text-transform: uppercase;
}

.al-prose blockquote > * {
  margin: 0;
}

.al-prose blockquote > * + * {
  margin-top: 0.5em;
}

/* Lists hang their markers in a 1.6em gutter. */
.al-prose :is(ul, ol) {
  padding-left: 0;
  list-style: none;
}

.al-prose :is(ul, ol) :is(ul, ol) {
  margin: 0;
}

.al-prose li {
  position: relative;
  padding-left: 1.6em;
}

.al-prose ul > li::before {
  content: '▪';
  position: absolute;
  left: 0;
  width: 1.6em;
  color: var(--accent);
  font-size: 0.8em;
  line-height: calc(var(--leading) / 0.8);
}

/* Square bullets alternate filled and open by depth. */
.al-prose ul ul > li::before { content: '▫'; }
.al-prose ul ul ul > li::before { content: '▪'; }
.al-prose ul ul ul ul > li::before { content: '▫'; }

.al-prose ol {
  counter-reset: al-ol;
}

.al-prose ol > li {
  counter-increment: al-ol;
}

.al-prose ol > li::before {
  content: counter(al-ol) '.';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.85em;
  font-weight: 500;
  line-height: calc(var(--leading) / 0.85);
}

/* Task lists keep their bullet, then the drawn square checkbox; done items
   strike and recede. */
.al-prose li > input[type='checkbox'] {
  margin: 0 0.4em 0 0;
  vertical-align: baseline;
}

.al-prose li:has(> input[type='checkbox']:checked) {
  color: var(--text-muted);
  text-decoration: line-through;
}

/* Fenced code: a solid black slab, square, with its language set top right
   in hot mono caps. Put the language in data-lang. */
.al-prose pre {
  overflow-x: auto;
  padding: 0.5em 1em;
  background: var(--code-bg);
  color: var(--code-fg);
  font-family: var(--font-mono);
  font-size: 0.85em;
  line-height: var(--leading);
}

.al-prose pre[data-lang]::before {
  content: attr(data-lang);
  display: block;
  text-align: right;
  color: var(--accent-hot);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.al-prose pre code {
  padding: 0;
  background: none;
  color: inherit;
  font: inherit;
}

/* Tables: heavy cell rules, inverted head, mono throughout. */
.al-prose table {
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 0.85em;
  line-height: 1.5;
}

.al-prose :is(th, td) {
  padding: 0.35em 0.8em;
  border: var(--rule-thin) solid var(--border);
  text-align: left;
}

.al-prose :is(th, td)[align='right'] { text-align: right; }
.al-prose :is(th, td)[align='center'] { text-align: center; }

.al-prose th {
  background: var(--border);
  color: var(--bg);
  font-size: 0.85em;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* Bold in a cell fills the whole cell; a chip inside a cell reads as a
   mistake. */
.al-prose td:has(strong) {
  background: var(--accent-hot);
  color: var(--on-hot);
}

.al-prose td strong {
  font-weight: 500;
  box-shadow: none;
}

/* Images sit inline with the text, capped so one photo is not the whole
   screen, and ruled like everything else, as in the editor. */
.al-prose img {
  display: inline-block;
  max-width: 100%;
  max-height: 60vh;
  vertical-align: middle;
  border: var(--rule) solid var(--border);
}

.al-prose .al-math-block {
  display: block;
  padding: 0.3em 0;
  text-align: center;
}

/* YAML front matter, or any metadata block: muted mono behind a thin rule. */
.al-prose .al-frontmatter {
  padding-left: 0.8em;
  border-left: 3px solid var(--text-muted);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.8em;
  letter-spacing: 0.04em;
  white-space: pre-wrap;
}

/* 6. Code tokens ---------------------------------------------------------- */

/* Scoped like everything else: a host page's own .token or .hljs-* classes are
   left alone unless they sit inside an Alethia wrapper. Nested rules, so the
   scope is written once. */
:where(.al-page, .al-prose, [data-al-theme]) {
  /* CodeMirror / Lezer classHighlighter */
  .tok-keyword { color: var(--code-keyword); }
  .tok-string, .tok-string2 { color: var(--code-string); }
  .tok-comment { color: var(--code-comment); font-style: italic; }
  .tok-number, .tok-bool, .tok-atom { color: var(--code-number); }
  .tok-typeName, .tok-className, .tok-namespace { color: var(--code-type); }
  .tok-operator, .tok-punctuation { color: var(--code-operator); }
  .tok-propertyName { color: var(--code-property); }
  .tok-variableName { color: var(--code-fg); }
  .tok-variableName.tok-definition { color: var(--code-function); }

  /* highlight.js */
  .hljs-keyword, .hljs-built_in, .hljs-literal { color: var(--code-keyword); }
  .hljs-string, .hljs-regexp { color: var(--code-string); }
  .hljs-comment, .hljs-quote { color: var(--code-comment); font-style: italic; }
  .hljs-number { color: var(--code-number); }
  .hljs-title.function_, .hljs-title { color: var(--code-function); }
  .hljs-type, .hljs-title.class_ { color: var(--code-type); }
  .hljs-operator, .hljs-punctuation { color: var(--code-operator); }
  .hljs-attr, .hljs-property { color: var(--code-property); }
  .hljs-variable, .hljs-params { color: var(--code-fg); }

  /* Prism */
  .token.keyword, .token.boolean { color: var(--code-keyword); }
  .token.string, .token.char, .token.regex { color: var(--code-string); }
  .token.comment { color: var(--code-comment); font-style: italic; }
  .token.number, .token.constant { color: var(--code-number); }
  .token.function { color: var(--code-function); }
  .token.class-name, .token.builtin { color: var(--code-type); }
  .token.operator, .token.punctuation { color: var(--code-operator); }
  .token.property, .token.attr-name { color: var(--code-property); }
  .token.variable { color: var(--code-fg); }
}

/* 7. Print ---------------------------------------------------------------- */

@media print {
  /* The one rule in this file that cannot be scoped: @page belongs to the
     document being printed, not to an element. The same margins as the app. */
  @page {
    margin: 18mm 16mm;
  }

  /* Fills are load-bearing in this design, so they have to survive. */
  .al-page,
  .al-page *,
  .al-prose input[type='checkbox'] {
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  /* Chrome has no meaning on paper. */
  .al-titlebar,
  .al-sidebar,
  .al-toolbar,
  .al-statusbar,
  .al-banner {
    display: none !important;
  }

  /* Paper is white and the orange goes black: on a monochrome device the
     cream dithers and the orange lands a muddy mid-grey. !important so the
     print palette wins over a dark-mode or data-al-theme override. */
  .al-page,
  .al-prose,
  [data-al-theme] {
    --bg: #ffffff !important;
    --text: #000000 !important;
    --text-muted: #555555 !important;
    --border: #000000 !important;
    --accent: #000000 !important;
    --accent-hot: #000000 !important;
    --on-hot: #ffffff !important;
    --on-accent: #ffffff !important;
    --code-bg: #000000 !important;
    --code-fg: #ffffff !important;
    --code-keyword: #ffffff !important;
    --code-number: #ffffff !important;
    --code-property: #ffffff !important;
    --code-type: #ffffff !important;
    --code-function: #ffffff !important;
    --code-string: #d0d0d0 !important;
    --code-comment: #b0b0b0 !important;
    --code-operator: #b0b0b0 !important;
  }

  .al-prose {
    max-width: none;
    padding: 0;
  }

  .al-dim {
    opacity: 1 !important;
  }

  /* The hot label would go black on the black slab; knock it out instead. */
  .al-prose pre[data-lang]::before {
    color: #ffffff;
  }

  /* An inline run of solid black is hard to read at body size, so links and
     inline code are ruled rather than filled. */
  .al-prose a {
    padding: 0;
    background: transparent;
    color: #000000;
    text-decoration: underline;
    text-decoration-thickness: 2px;
    text-underline-offset: 2px;
  }

  .al-prose :not(pre) > code {
    background: transparent;
    color: #000000;
    border: 1px solid #000000;
  }

  .al-prose :is(h1, h2, h3, h4, h5, h6) {
    break-after: avoid;
  }

  .al-prose :is(table, pre, blockquote) {
    break-inside: avoid;
  }
}