/* ==========================================================================
   UNM CARC documentation theme
   UNM brand: Cherry #BA0C2F + Turquoise #007A86 (accent), Silver #A7A8AA
   Design inspired by the Jetstream2 documentation (gradient identity header,
   card-based landing page) rebuilt for the Zensical modern theme.
   ========================================================================== */

/* --- Brand color tokens ------------------------------------------------- */

:root > * {
  --md-primary-fg-color:        #ba0c2f;   /* UNM cherry */
  --md-primary-fg-color--light: #d64d6d;
  --md-primary-fg-color--dark:  #8a0923;
  --md-accent-fg-color:         #007a86;   /* UNM turquoise */
  --md-accent-fg-color--transparent: rgba(0, 122, 134, 0.1);

  --carc-cherry:           #ba0c2f;
  --carc-cherry-dark:      #6d0a1f;
  --carc-turquoise:        #007a86;
  --carc-turquoise-bright: #00a9ba;
  --carc-silver:           #a7a8aa;
  --carc-gradient: linear-gradient(105deg,
      #4d0715 0%,
      #8a0923 30%,
      #ba0c2f 58%,
      #7c2440 74%,
      #0b5f6a 92%,
      #007a86 100%);
}

/* Dark scheme: lift the palette for contrast on slate backgrounds */
[data-md-color-scheme="slate"] {
  --md-primary-fg-color:        #ff5c7c;
  --md-primary-fg-color--light: #ff8ba3;
  --md-primary-fg-color--dark:  #d64d6d;
  --md-accent-fg-color:         #35c9d6;
  --md-accent-fg-color--transparent: rgba(53, 201, 214, 0.1);
  --md-typeset-a-color:         #4fd3e0;   /* turquoise links for legibility */
}

/* --- Identity header (cherry-to-turquoise gradient) ---------------------- */

.md-header,
.md-tabs {
  background: var(--carc-gradient);
  color: #ffffff;
}

.md-header { box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25); }

.md-header a,
.md-header .md-header__title,
.md-tabs a {
  color: #ffffff;
}

.md-tabs__link { opacity: 0.85; }
.md-tabs__link--active,
.md-tabs__link:hover { opacity: 1; }

/* Keep header controls (search, palette toggle, repo) legible on gradient */
.md-header .md-icon svg { fill: #ffffff; }
.md-search__form { background-color: rgba(255, 255, 255, 0.12); }
.md-search__input { color: #ffffff; }
.md-search__input::placeholder { color: rgba(255, 255, 255, 0.75); }

/* --- Landing page -------------------------------------------------------- */

/* Accessible-but-invisible page H1 (the hero carries the visual title) */
.carc-visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0; border: 0;
  clip: rect(0 0 0 0);
  overflow: hidden;
  white-space: nowrap;
}

.carc-hero .carc-hero__title {
  margin: 0.2rem 0 0.4rem;
  font-size: 1.6rem;
  line-height: 1.2;
  background: var(--carc-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

[data-md-color-scheme="slate"] .carc-hero .carc-hero__title {
  background: linear-gradient(105deg, #ff5c7c 0%, #ff8ba3 45%, #35c9d6 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

.carc-hero {
  text-align: center;
  margin: 0.5rem auto 1.6rem;
  max-width: 42rem;
}

.carc-hero img.carc-hero__logo {
  width: 7.5rem;
  margin-bottom: 0.25rem;
}

/* No permalink pilcrow or TOC entry decoration on the hero title */
.carc-hero .carc-hero__title .headerlink { display: none; }

.carc-hero p.carc-hero__tagline {
  font-size: 0.85rem;
  color: var(--md-default-fg-color--light);
}

/* Quick-action button row */
.carc-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: center;
  margin: 1.2rem 0 0.4rem;
}

.carc-actions .md-button {
  border-radius: 2rem;
  padding: 0.45rem 1.2rem;
}

.carc-actions .md-button--primary {
  background: var(--carc-gradient);
  border-color: transparent;
}

/* Card grids: turquoise hover treatment */
.md-typeset .grid.cards > ul > li,
.md-typeset .grid > .card {
  border-radius: 0.5rem;
  transition: border-color 125ms, box-shadow 125ms, transform 125ms;
}

.md-typeset .grid.cards > ul > li:hover,
.md-typeset .grid > .card:hover {
  border-color: var(--carc-turquoise);
  box-shadow: 0 6px 16px rgba(0, 122, 134, 0.18);
  transform: translateY(-2px);
}

.md-typeset .grid.cards > ul > li > hr {
  background: linear-gradient(90deg, var(--carc-cherry), var(--carc-turquoise));
  height: 2px;
  border: 0;
}

/* Partner strip */
.carc-partners {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin: 1rem 0 0.5rem;
}

.carc-partners a {
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 2rem;
  padding: 0.3rem 0.9rem;
  font-size: 0.7rem;
  color: var(--md-default-fg-color--light);
  transition: border-color 125ms, color 125ms;
}

.carc-partners a:hover {
  border-color: var(--carc-turquoise);
  color: var(--carc-turquoise);
}

/* --- Content niceties ----------------------------------------------------- */

/* Slightly wider content area, mirroring Jetstream2's 1200px layout */
.md-grid { max-width: 76rem; }

/* Provenance footer line added to migrated pages */
.carc-provenance {
  margin-top: 2.5rem;
  padding-top: 0.6rem;
  border-top: 1px solid var(--md-default-fg-color--lightest);
  font-size: 0.64rem;
  color: var(--md-default-fg-color--light);
}

/* Embedded video players (YouTube nocookie) */
iframe.carc-video {
  aspect-ratio: 16 / 9;
  width: 100%;
  max-width: 44rem;
  border: 0;
  border-radius: 0.4rem;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
  margin: 0.6rem 0 1rem;
  display: block;
}

/* FAQ question admonitions: turquoise instead of Material's default green */
.md-typeset .admonition.question,
.md-typeset details.question {
  border-color: var(--carc-turquoise);
}

.md-typeset .question > .admonition-title,
.md-typeset .question > summary {
  background-color: rgba(0, 122, 134, 0.1);
}

.md-typeset .question > .admonition-title::before,
.md-typeset .question > summary::before {
  background-color: var(--carc-turquoise);
}

[data-md-color-scheme="slate"] .md-typeset .admonition.question,
[data-md-color-scheme="slate"] .md-typeset details.question {
  border-color: var(--carc-turquoise-bright);
}

[data-md-color-scheme="slate"] .md-typeset .question > .admonition-title::before,
[data-md-color-scheme="slate"] .md-typeset .question > summary::before {
  background-color: var(--carc-turquoise-bright);
}

/* Tables: header tint */
.md-typeset table:not([class]) th {
  background-color: var(--md-accent-fg-color--transparent);
}

/* ==========================================================================
   DUST 2026 additions (carried over from the DUST 2025 lesson styling)
   ========================================================================== */

/* Figure captions */
.md-typeset figcaption {
  font-size: 0.85rem;
  font-style: italic;
  text-align: center;
  color: var(--md-default-fg-color--light);
  margin-top: 0.5rem;
}

/* Mark external links, except buttons, images, and nav. The second
   `content` declaration uses the CSS alternative-text syntax so screen
   readers skip the arrow; browsers without it keep the first declaration. */
.md-typeset a[href^="http"]:not(.md-button)::after {
  content: " \2197";
  content: " \2197" / "";
  font-size: 0.8em;
  color: var(--md-default-fg-color--light);
}
.md-typeset a[href^="http"] > img,
.md-typeset figure a::after,
.md-nav__link::after {
  content: none !important;
}

/* Collapsible quiz questions */
.md-typeset details > summary { cursor: pointer; }
.md-typeset details[open] > summary { margin-bottom: 0.75rem; }

/* Print: hide chrome, show link targets */
@media print {
  .md-header, .md-footer, .md-sidebar, .md-content__button { display: none !important; }
  .md-content { max-width: 100% !important; }
  .md-typeset a::after { content: " (" attr(href) ")"; font-size: 0.85em; }
}

/* ==========================================================================
   Accessibility (see docs/about/accessibility.md)
   ========================================================================== */

/* Visible keyboard focus on every interactive element, in both schemes */
.md-typeset a:focus-visible,
.md-typeset summary:focus-visible,
.md-typeset .md-button:focus-visible,
.md-nav__link:focus-visible,
.md-tabs__link:focus-visible,
.md-header__button:focus-visible,
.md-search__input:focus-visible,
.md-top:focus-visible {
  outline: 3px solid var(--carc-turquoise-bright);
  outline-offset: 2px;
  border-radius: 0.15rem;
}

/* Figure long descriptions: a compact details block right under the figure */
.md-typeset figure + details.note {
  margin-top: -0.4rem;
  font-size: 0.8rem;
}

/* Abbreviations (key terms): dotted underline, help cursor, no odd tooltip color */
.md-typeset abbr[title] {
  text-decoration: underline dotted;
  text-underline-offset: 0.15em;
  cursor: help;
}

/* Honor the operating-system request for less motion */
@media (prefers-reduced-motion: reduce) {
  .md-typeset .grid.cards > ul > li,
  .md-typeset .grid > .card,
  .carc-partners a,
  .carc-actions .md-button {
    transition: none !important;
  }
  .md-typeset .grid.cards > ul > li:hover,
  .md-typeset .grid > .card:hover {
    transform: none;
  }
  html { scroll-behavior: auto !important; }
}

/* Body-level machine-readable pointers injected by postbuild_agent_surface.py */
.md-typeset .carc-machine-readable {
  margin-top: 1.2rem;
  font-size: 0.64rem;
  color: var(--md-default-fg-color--light);
}