/* ---------------------------------------------------------------------------
   Backfield brand styling, layered on top of Material for MkDocs.
   Palette borrowed from localangle.co: warm cream surfaces, ink text,
   muted teal links, coral accent.
   --------------------------------------------------------------------------- */

:root {
  --bf-bg: #faf8f4;
  --bf-surface: #f3efe6;
  --bf-rule: #e6e1d7;
  --bf-ink: #211e1a;
  --bf-muted: #756e63;
  --bf-teal: #2b8987;
  --bf-teal-ink: #20706e;
  --bf-coral: #fe6962;
  --bf-coral-ink: #d6463f;

  /* Light header: cream background, ink text */
  --md-primary-fg-color: var(--bf-bg);
  --md-primary-fg-color--light: var(--bf-surface);
  --md-primary-fg-color--dark: var(--bf-ink);
  --md-primary-bg-color: var(--bf-ink);
  --md-primary-bg-color--light: var(--bf-muted);
  --md-accent-fg-color: var(--bf-coral-ink);

  --md-text-font: "Inter", -apple-system, sans-serif;

  /* Shared horizontal inset for masthead title + tab bar */
  --bf-header-inset: max(0.8rem, min(4vw, 1.6rem));
}

[data-md-color-scheme="default"] {
  --md-default-bg-color: var(--bf-bg);
  --md-default-fg-color: var(--bf-ink);
  --md-default-fg-color--light: #4a453d;
  --md-default-fg-color--lighter: var(--bf-muted);
  --md-default-fg-color--lightest: var(--bf-rule);
  --md-typeset-color: var(--bf-ink);
  --md-typeset-a-color: var(--bf-teal-ink);
  --md-code-bg-color: var(--bf-surface);
  --md-code-fg-color: var(--bf-ink);
  --md-footer-bg-color: var(--bf-ink);
  --md-footer-bg-color--dark: #18150f;
}

[data-md-color-scheme="slate"] {
  --md-hue: 40; /* warm the dark background to match the brand */
  --md-typeset-a-color: #6fc7c4;
  --md-accent-fg-color: var(--bf-coral);
  --md-primary-fg-color: #211e1a;
  --md-primary-bg-color: #f3efe6;
}

/* Header title: text-only masthead, no logo */
.md-header__button.md-logo {
  display: none;
}

/* Desktop: no drawer button; title and tabs share the same left edge */
@media screen and (min-width: 76.25em) {
  .md-header__button[for="__drawer"] {
    display: none;
  }
}

.md-header__inner.md-grid,
.md-tabs .md-grid {
  margin-left: 0;
  margin-right: 0;
  max-width: none;
  padding-left: var(--bf-header-inset);
  padding-right: var(--bf-header-inset);
}

.md-header__inner .md-header__title {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-left: 0 !important;
  margin-right: 0 !important;
  padding-left: 0;
}

/* Tab labels share the masthead left edge (Material adds list/item inset by default) */
.md-tabs__list {
  margin-left: 0 !important;
}

.md-tabs__item:first-child {
  padding-left: 0;
}

.md-header__title:hover {
  color: inherit;
}

/* Header and tabs: flat cream with a hairline rule, like a print masthead */
.md-header,
.md-tabs {
  background-color: var(--md-primary-fg-color);
  color: var(--md-primary-bg-color);
}
.md-header {
  box-shadow: none;
  border-bottom: 1px solid var(--bf-rule);
}
.md-tabs {
  border-bottom: 1px solid var(--bf-rule);
}

/* Mobile: align tabs with title text after the drawer button */
@media screen and (max-width: 76.24em) {
  .md-tabs .md-grid {
    padding-left: 2.6rem;
  }
}
.md-header[data-md-state="shadow"],
.md-header--shadow {
  box-shadow: none;
}
[data-md-color-scheme="slate"] .md-header,
[data-md-color-scheme="slate"] .md-tabs {
  border-bottom-color: #3a352d;
}

/* Active tab underlined in teal */
.md-tabs__link--active,
.md-tabs__link:hover {
  color: var(--bf-teal-ink);
}
[data-md-color-scheme="slate"] .md-tabs__link--active,
[data-md-color-scheme="slate"] .md-tabs__link:hover {
  color: #6fc7c4;
}

/* Search field: sit quietly on the cream header */
.md-search__form {
  background-color: var(--bf-surface);
  border-radius: 0.3rem;
}
.md-search__form:hover {
  background-color: var(--bf-rule);
}
.md-search__input::placeholder,
.md-search__icon {
  color: var(--bf-muted);
}
[data-md-color-scheme="slate"] .md-search__form {
  background-color: #2e2a24;
}
[data-md-color-scheme="slate"] .md-search__form:hover {
  background-color: #3a352d;
}

/* Tighter, calmer type */
.md-typeset {
  font-size: 0.78rem;
  line-height: 1.65;
}
.md-typeset h1 {
  font-weight: 700;
  color: var(--md-default-fg-color);
  letter-spacing: -0.01em;
}
.md-typeset h2 {
  font-weight: 650;
  letter-spacing: -0.005em;
}

/* Landing-page cards */
.md-typeset .grid.cards > ul > li {
  border-radius: 0.5rem;
  border-color: var(--bf-rule);
  background-color: var(--bf-bg);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.md-typeset .grid.cards > ul > li:hover {
  border-color: var(--bf-teal);
  box-shadow: 0 4px 14px rgba(33, 30, 26, 0.07);
}
[data-md-color-scheme="slate"] .md-typeset .grid.cards > ul > li {
  border-color: #3a352d;
  background-color: transparent;
}

/* Code blocks: soften the corners */
.md-typeset pre > code {
  border-radius: 0.4rem;
}

/* Admonitions: lighter touch, recolored to the palette */
.md-typeset .admonition,
.md-typeset details {
  border-radius: 0.4rem;
  font-size: 0.72rem;
}

/* Notes and questions in teal */
.md-typeset .admonition.note,
.md-typeset details.note,
.md-typeset .admonition.question,
.md-typeset details.question {
  border-color: var(--bf-teal);
}
.md-typeset .note > .admonition-title,
.md-typeset .note > summary,
.md-typeset .question > .admonition-title,
.md-typeset .question > summary {
  background-color: rgba(43, 137, 135, 0.08);
}
.md-typeset .note > .admonition-title::before,
.md-typeset .note > summary::before,
.md-typeset .question > .admonition-title::before,
.md-typeset .question > summary::before {
  background-color: var(--bf-teal);
}

/* Warnings in coral */
.md-typeset .admonition.warning,
.md-typeset details.warning {
  border-color: var(--bf-coral-ink);
}
.md-typeset .warning > .admonition-title,
.md-typeset .warning > summary {
  background-color: rgba(254, 105, 98, 0.1);
}
.md-typeset .warning > .admonition-title::before,
.md-typeset .warning > summary::before {
  background-color: var(--bf-coral-ink);
}