/* ThirdBrain BOB brand for the docs site: the v2 palette (approved 2026-10-10) and the website's
   signature theme. Sources of truth: the vault's brand theme (brncx-brand-theme.md) and the
   website's src/sass/theme/_theme-signature.scss. Body and code fonts are set in mkdocs.yml
   (theme.font); Brygada 1918 for headings is loaded here. */
@import url("https://fonts.googleapis.com/css2?family=Brygada+1918:wght@500;600;700&display=swap");

:root {
  --bob-chocolate: #3A2619;
  --bob-chocolate-deep: #22170F;
  --bob-blue-green: #217369;
  --bob-signature: #86D3CA;
  --bob-cream: #F4EEE6;
  --bob-paper: #FAF6F0;
  --bob-mist: #EAF4F2;
  --bob-text-secondary: #6B5A4E;
  --bob-border: #E3DBD3;
  --bob-heading-font: "Brygada 1918", Georgia, serif;
}

/* Light: chocolate header, paper page, blue-green links. */
[data-md-color-scheme="default"] {
  --md-primary-fg-color: var(--bob-chocolate);
  --md-primary-fg-color--light: var(--bob-text-secondary);
  --md-primary-fg-color--dark: var(--bob-chocolate-deep);
  --md-primary-bg-color: #FFFDF9;
  --md-primary-bg-color--light: rgba(255, 253, 249, 0.72);
  --md-accent-fg-color: var(--bob-blue-green);
  --md-accent-fg-color--transparent: rgba(33, 115, 105, 0.1);
  --md-default-bg-color: var(--bob-paper);
  --md-default-fg-color: rgba(58, 38, 25, 0.9);
  --md-default-fg-color--light: rgba(58, 38, 25, 0.62);
  --md-default-fg-color--lighter: rgba(58, 38, 25, 0.32);
  --md-default-fg-color--lightest: rgba(58, 38, 25, 0.08);
  --md-typeset-color: var(--bob-chocolate);
  --md-typeset-a-color: var(--bob-blue-green);
  --md-code-bg-color: var(--bob-cream);
  --md-code-fg-color: var(--bob-chocolate);
  --md-typeset-table-color: rgba(58, 38, 25, 0.12);
  --md-footer-bg-color: var(--bob-chocolate);
  --md-footer-bg-color--dark: var(--bob-chocolate-deep);
  --bob-hero-bg: var(--bob-mist);
  --bob-heading-color: var(--bob-chocolate);
}

/* Dark: the signature dark tokens, signature blue as the accent. */
[data-md-color-scheme="slate"] {
  --md-primary-fg-color: #2B1D16;
  --md-primary-fg-color--light: #6B5A4E;
  --md-primary-fg-color--dark: var(--bob-chocolate-deep);
  --md-primary-bg-color: var(--bob-cream);
  --md-primary-bg-color--light: rgba(244, 238, 230, 0.72);
  --md-accent-fg-color: var(--bob-signature);
  --md-accent-fg-color--transparent: rgba(134, 211, 202, 0.12);
  --md-default-bg-color: var(--bob-chocolate-deep);
  --md-default-bg-color--light: #2B1D16;
  --md-default-fg-color: rgba(244, 238, 230, 0.9);
  --md-default-fg-color--light: rgba(244, 238, 230, 0.64);
  --md-default-fg-color--lighter: rgba(244, 238, 230, 0.32);
  --md-default-fg-color--lightest: rgba(244, 238, 230, 0.1);
  --md-typeset-color: var(--bob-cream);
  --md-typeset-a-color: var(--bob-signature);
  --md-code-bg-color: #2B1D16;
  --md-code-fg-color: var(--bob-cream);
  --md-footer-bg-color: #1A110B;
  --md-footer-bg-color--dark: #120B07;
  --bob-hero-bg: var(--bob-chocolate);
  --bob-heading-color: var(--bob-cream);
}

/* Headings and the header title in the display face. */
.md-typeset h1,
.md-typeset h2,
.md-typeset h3,
.md-header__topic,
.md-nav__title {
  font-family: var(--bob-heading-font);
}
.md-typeset h1,
.md-typeset h2,
.md-typeset h3 {
  color: var(--bob-heading-color);
  letter-spacing: -0.01em;
}
.md-typeset h1 { font-weight: 700; }
.md-typeset h2 { font-weight: 600; }
.md-header__topic:first-child { font-weight: 700; }

/* The compact BOB logo is a wide label: at least 24 px high (the product logo rule). */
.md-header__button.md-logo { padding: 0.3rem 0.2rem; }
.md-header__button.md-logo img { height: 1.8rem; width: auto; }
.md-nav__button.md-logo img { height: 2.4rem; width: auto; }

/* Tabs sit on the header colour. */
.md-tabs { background-color: var(--md-primary-fg-color); }

/* Section labels in the sidebar: quieter, uppercase. */
.md-nav--primary .md-nav__item--section > .md-nav__link {
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--md-default-fg-color--light);
}

/* Buttons in brand colours. */
.md-typeset .md-button {
  border-radius: 0.3rem;
  font-weight: 600;
}
.md-typeset .md-button--primary {
  background-color: var(--md-accent-fg-color);
  border-color: var(--md-accent-fg-color);
  color: var(--md-default-bg-color);
}

/* Landing page. */
.bob-hero {
  background: var(--bob-hero-bg);
  border-radius: 0.6rem;
  padding: 1.6rem 2rem 1.4rem;
  margin: 0 0 1.6rem;
}
.bob-hero h1 {
  margin: 0 0 0.6rem;
  font-size: 2.3rem;
  line-height: 1.15;
}
.bob-hero p { font-size: 0.95rem; max-width: 40rem; }
/* The mascot sits beside the introduction, never behind text (product brand rule). */
.bob-hero {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.5rem;
  align-items: center;
}
/* `.md-typeset` in the selector: Material's `.md-typeset img { height: auto }` would win otherwise
   and stretch BOB to the column width. Sized to the text beside it, so on a full HD screen the
   cards below start above the fold. */
.md-typeset .bob-hero__mascot { height: 13rem; width: auto; max-width: none; display: block; }
.md-typeset .bob-hero > p { margin: 0; }
@media screen and (max-width: 44.9375em) {
  .bob-hero { grid-template-columns: 1fr; }
  .bob-hero__mascot { display: none; }
}
.md-typeset .grid.cards > ul > li {
  border-radius: 0.5rem;
  background: var(--md-default-bg-color);
}
.md-typeset .grid.cards > ul > li:hover {
  border-color: var(--md-accent-fg-color);
}