/* runakefli site theme.
 *
 * An operations manual, not a product page: cool paper, ink, one petrol blue
 * for structure and one amber that is used only where attention is needed.
 * Source Serif 4 for headings, Source Sans 3 for text, Source Code Pro for
 * code, all self-hosted (docs/assets/fonts, SIL OFL; licences next to them).
 */

/* --- fonts ------------------------------------------------------------- */

@font-face {
  font-family: "Source Sans 3";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../assets/fonts/source-sans-3-latin-400-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Source Sans 3";
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url("../assets/fonts/source-sans-3-latin-400-italic.woff2") format("woff2");
}
@font-face {
  font-family: "Source Sans 3";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../assets/fonts/source-sans-3-latin-600-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Source Serif 4";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../assets/fonts/source-serif-4-latin-600-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Source Serif 4";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("../assets/fonts/source-serif-4-latin-700-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Source Code Pro";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../assets/fonts/source-code-pro-latin-400-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Source Code Pro";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../assets/fonts/source-code-pro-latin-600-normal.woff2") format("woff2");
}

/* --- palette ----------------------------------------------------------- */

:root {
  --md-text-font: "Source Sans 3", system-ui, -apple-system, "Segoe UI", sans-serif;
  --md-code-font: "Source Code Pro", ui-monospace, "DejaVu Sans Mono", monospace;
  --lh-serif: "Source Serif 4", Georgia, "Times New Roman", serif;
}

[data-md-color-primary="custom"] {
  --md-primary-fg-color: #1e4d5c;
  --md-primary-fg-color--light: #3f7284;
  --md-primary-fg-color--dark: #153742;
  --md-primary-bg-color: #ffffff;
  --md-primary-bg-color--light: rgba(255, 255, 255, 0.72);
}
[data-md-color-accent="custom"] {
  --md-accent-fg-color: #9c5a09;
  --md-accent-fg-color--transparent: rgba(156, 90, 9, 0.1);
  --md-accent-bg-color: #ffffff;
  --md-accent-bg-color--light: rgba(255, 255, 255, 0.7);
}

[data-md-color-scheme="default"] {
  --md-default-bg-color: #f6f8f9;
  --md-default-fg-color: #1a262e;
  --md-default-fg-color--light: #4a5a64;
  --md-default-fg-color--lighter: #8796a0;
  --md-default-fg-color--lightest: #d3dce1;
  --md-typeset-color: #1a262e;
  --md-typeset-a-color: #1a5f78;
  --md-code-bg-color: #e9eef1;
  --md-code-fg-color: #1a262e;
  --md-typeset-table-color: #d3dce1;
  --md-footer-bg-color: #153742;
  --md-footer-bg-color--dark: #102c35;
  --lh-rule: #d3dce1;
  --lh-surface: #ffffff;
  --md-code-hl-number-color: #9c5a09;
  --md-code-hl-special-color: #8a3b2c;
  --md-code-hl-function-color: #1a5f78;
  --md-code-hl-constant-color: #1a5f78;
  --md-code-hl-keyword-color: #24608a;
  --md-code-hl-string-color: #2f6f4f;
  --md-code-hl-name-color: #1a262e;
  --md-code-hl-operator-color: #4a5a64;
  --md-code-hl-punctuation-color: #4a5a64;
  --md-code-hl-comment-color: #667781;
  --md-code-hl-generic-color: #4a5a64;
  --md-code-hl-variable-color: #1a262e;
  --lh-add-bg: rgba(30, 110, 80, 0.14);
  --lh-del-bg: rgba(170, 50, 40, 0.12);
}

[data-md-color-scheme="slate"] {
  --md-default-bg-color: #11181d;
  --md-default-bg-color--light: rgba(17, 24, 29, 0.54);
  --md-default-fg-color: #d8e0e5;
  --md-default-fg-color--light: #a9b7c0;
  --md-default-fg-color--lighter: #6f808b;
  --md-default-fg-color--lightest: #26333b;
  --md-typeset-color: #d8e0e5;
  --md-typeset-a-color: #7dbcd1;
  --md-code-bg-color: #1a242b;
  --md-code-fg-color: #d8e0e5;
  --md-typeset-table-color: #26333b;
  --md-primary-fg-color: #16323c;
  --md-primary-fg-color--light: #2c5a6a;
  --md-primary-fg-color--dark: #0f2229;
  --md-accent-fg-color: #e3a64a;
  --md-accent-fg-color--transparent: rgba(227, 166, 74, 0.1);
  --md-footer-bg-color: #0d1418;
  --md-footer-bg-color--dark: #0a1013;
  --lh-rule: #26333b;
  --lh-surface: #182128;
  --md-code-hl-number-color: #e3a64a;
  --md-code-hl-special-color: #e08a7a;
  --md-code-hl-function-color: #7dbcd1;
  --md-code-hl-constant-color: #7dbcd1;
  --md-code-hl-keyword-color: #8fb4e6;
  --md-code-hl-string-color: #8cc9a3;
  --md-code-hl-name-color: #d8e0e5;
  --md-code-hl-operator-color: #a9b7c0;
  --md-code-hl-punctuation-color: #a9b7c0;
  --md-code-hl-comment-color: #7d8e99;
  --md-code-hl-generic-color: #a9b7c0;
  --md-code-hl-variable-color: #d8e0e5;
  --lh-add-bg: rgba(80, 190, 140, 0.16);
  --lh-del-bg: rgba(230, 100, 90, 0.16);
}

/* --- typography -------------------------------------------------------- */

.md-typeset {
  font-size: 0.85rem; /* ~17 px */
  line-height: 1.65;
}
.md-typeset strong {
  font-weight: 600;
}
.md-typeset h1,
.md-typeset h2,
.md-typeset h3,
.md-typeset h4 {
  font-family: var(--lh-serif);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--md-default-fg-color);
}
.md-typeset h1 {
  font-size: 2.1em;
  line-height: 1.15;
  margin-bottom: 0.8em;
}
.md-typeset h2 {
  font-size: 1.5em;
  line-height: 1.25;
  margin-top: 2.2em;
  padding-top: 0.7em;
  border-top: 1px solid var(--lh-rule);
}
.md-typeset h3 {
  font-size: 1.2em;
  line-height: 1.3;
}
.md-typeset code,
.md-typeset pre {
  font-size: 0.82em;
}
/* line length: under 80 characters for running text */
.md-typeset p,
.md-typeset ul:not(.contents),
.md-typeset ol {
  max-width: 68ch;
}
.md-typeset .highlight,
.md-typeset table:not([class]),
.md-typeset .admonition,
.md-typeset .admonition p {
  max-width: none;
}
.md-typeset table:not([class]) {
  font-size: 0.85em;
  background: var(--lh-surface);
  border: 1px solid var(--lh-rule);
  box-shadow: none;
  font-variant-numeric: tabular-nums;
}
.md-typeset table:not([class]) th {
  font-weight: 600;
  background: var(--md-code-bg-color);
}

/* --- chrome ------------------------------------------------------------ */

.md-header {
  box-shadow: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.md-tabs,
.md-header[data-md-state="shadow"] {
  box-shadow: none;
}
.md-nav__title,
.md-nav__item--section > .md-nav__link {
  font-weight: 600;
}
.md-typeset code {
  border-radius: 2px;
}
.md-typeset pre > code {
  border-radius: 2px;
}
.md-typeset .admonition,
.md-typeset details {
  border-radius: 2px;
  box-shadow: none;
}
/* the release-candidate notice is the one place amber is used for a block */
.md-typeset .admonition.note,
.md-typeset details.note {
  border-color: #9c5a09;
  background: var(--lh-surface);
}
.md-typeset .note > .admonition-title,
.md-typeset .note > summary {
  background: rgba(156, 90, 9, 0.12);
}
.md-typeset .note > .admonition-title::before,
.md-typeset .note > summary::before {
  background-color: #9c5a09;
}
[data-md-color-scheme="slate"] .md-typeset .admonition.note {
  border-color: #e3a64a;
}
[data-md-color-scheme="slate"] .md-typeset .note > .admonition-title {
  background: rgba(227, 166, 74, 0.12);
}
[data-md-color-scheme="slate"] .md-typeset .note > .admonition-title::before {
  background-color: #e3a64a;
}

/* buttons */
.md-typeset .md-button {
  border-radius: 2px;
  font-weight: 600;
  border-width: 1.5px;
  color: var(--md-typeset-a-color);
  border-color: var(--md-typeset-a-color);
}
.md-typeset .md-button--primary {
  background-color: var(--md-primary-fg-color);
  border-color: var(--md-primary-fg-color);
  color: #fff;
}
[data-md-color-scheme="slate"] .md-typeset .md-button--primary {
  background-color: #7dbcd1;
  border-color: #7dbcd1;
  color: #0f2229;
}
.md-typeset .md-button:hover,
.md-typeset .md-button:focus-visible {
  background-color: var(--md-accent-fg-color);
  border-color: var(--md-accent-fg-color);
  color: #fff;
}
[data-md-color-scheme="slate"] .md-typeset .md-button:hover,
[data-md-color-scheme="slate"] .md-typeset .md-button:focus-visible {
  color: #11181d;
}
:focus-visible {
  outline: 2px solid var(--md-accent-fg-color);
  outline-offset: 2px;
}

/* --- landing page ------------------------------------------------------ */

.lh-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 2.5rem;
  align-items: center;
  padding: 1.2rem 0 1.6rem;
}
.lh-hero__text > :first-child {
  margin-top: 0;
}
.md-typeset .lh-hero h1 {
  font-size: 3.1em;
  line-height: 1.05;
  margin: 0 0 0.35em;
  padding-bottom: 0.35em;
  border-bottom: 3px solid var(--md-accent-fg-color);
  display: inline-block;
}
.lh-tagline {
  font-size: 1.2em;
  line-height: 1.4;
  margin: 0 0 0.6em;
}
.lh-lede {
  color: var(--md-default-fg-color--light);
  margin: 0 0 1.4em;
}
.lh-hero .md-button {
  margin: 0 0.3rem 0.4rem 0;
  padding: 0.5em 1.1em;
}

/* the one memorable thing: the change a migrator actually makes */
.lh-swap {
  min-width: 0;
}
.lh-swap__caption {
  font-size: 0.85em;
  color: var(--md-default-fg-color--light);
  margin: 0 0 0.5rem;
}
.lh-swap pre {
  margin: 0;
}
.md-typeset .lh-swap .highlight {
  margin: 0;
}
.md-typeset .lh-swap pre.lh-diff {
  margin: 0;
  background: var(--md-code-bg-color);
  border-left: 3px solid var(--md-accent-fg-color);
  border-radius: 2px;
  overflow-x: auto;
}
.md-typeset .lh-swap pre.lh-diff > code {
  display: block;
  padding: 0.5rem 0;
  font-size: 0.95em;
  line-height: 2;
  background: none;
  overflow: visible;
}
.lh-diff .lh-del,
.lh-diff .lh-add {
  display: block;
  padding: 0 1.1rem;
  white-space: pre;
}
.lh-diff .lh-del {
  background: var(--lh-del-bg);
}
.lh-diff .lh-add {
  background: var(--lh-add-bg);
}
.lh-swap__note {
  font-size: 0.8em;
  color: var(--md-default-fg-color--light);
  margin: 0.5rem 0 0;
}

.lh-badges {
  margin: 0 0 1.4rem;
}
.lh-badges img {
  margin: 0 0.15rem 0.2rem 0;
  vertical-align: middle;
}

/* the data path, as a real graphic instead of ASCII art */
.md-typeset ol.lh-flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: stretch;
  gap: 0;
  margin: 1.2rem 0;
  list-style: none;
  padding: 0;
  max-width: none;
}
.md-typeset ol.lh-flow > li.lh-flow__node,
.md-typeset ol.lh-flow > li.lh-flow__link {
  margin: 0;
}
.lh-flow__node {
  background: var(--lh-surface);
  border: 1px solid var(--lh-rule);
  padding: 0.8rem 1rem;
}
.lh-flow__node--core {
  border-color: var(--md-primary-fg-color);
  border-width: 2px;
}
.lh-flow__node strong {
  display: block;
  font-family: var(--lh-serif);
  font-size: 1.1em;
}
.lh-flow__node span {
  font-size: 0.85em;
  color: var(--md-default-fg-color--light);
}
.lh-flow__link {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 0 0.6rem;
  font-size: 0.75em;
  line-height: 1.3;
  text-align: center;
  color: var(--md-default-fg-color--light);
  min-width: 6.5rem;
}
.lh-flow__link::after {
  content: "\2192";
  font-size: 2em;
  line-height: 1;
  margin-top: 0.1rem;
  color: var(--md-default-fg-color--lighter);
}

/* lists of items with a rule on top instead of boxed cards */
.md-typeset .grid.cards > ul {
  gap: 0 2.2rem;
  max-width: none;
}
.md-typeset .grid.cards > ul > li {
  border: 0;
  border-top: 2px solid var(--md-primary-fg-color);
  border-radius: 0;
  box-shadow: none;
  background: none;
  padding: 0.7rem 0 0.4rem;
  margin: 0 0 0.8rem;
  transition: none;
}
.md-typeset .grid.cards > ul > li:hover {
  box-shadow: none;
  border-color: var(--md-accent-fg-color);
}
.md-typeset .grid.cards > ul > li > hr {
  display: none;
}
.md-typeset .grid.cards > ul > li > p:first-child {
  font-family: var(--lh-serif);
  font-size: 1.12em;
  margin: 0 0 0.3em;
}
.md-typeset .grid.cards > ul > li > p {
  max-width: none;
}

/* tabs */
.md-typeset .tabbed-labels > label {
  font-weight: 600;
}

@media (max-width: 52em) {
  .lh-hero {
    grid-template-columns: minmax(0, 1fr);
    gap: 1.5rem;
  }
  .md-typeset .lh-hero h1 {
    font-size: 2.5em;
  }
  .md-typeset ol.lh-flow {
    grid-template-columns: minmax(0, 1fr);
  }
  .lh-flow__link {
    padding: 0.5rem 0;
    min-width: 0;
  }
  .lh-flow__link::after {
    content: "\2193";
    margin: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}