/* =========================================================================
   Aura Academic — MkDocs Material overrides
   Inspired by the stitch_study_guide_portal_redesign mockups.
   Ported into Material's CSS custom-property system so the theme's nav,
   search, TOC, and quiz plumbing continue to work.
   ========================================================================= */

:root,
[data-md-color-scheme="default"] {
  /* Palette — Aura Academic */
  --aura-slate-950: #0f172a;
  --aura-slate-900: #131b2e;
  --aura-slate-800: #213145;
  --aura-slate-600: #45464d;
  --aura-slate-400: #76777d;
  --aura-slate-200: #c6c6cd;
  --aura-slate-100: #d3e4fe;
  --aura-slate-50:  #eff4ff;
  --aura-surface:   #f8f9ff;
  --aura-white:     #ffffff;

  --aura-emerald-500: #10b981;
  --aura-emerald-400: #4edea3;
  --aura-emerald-200: #6ffbbe;
  --aura-emerald-50:  #dcfce7;
  --aura-emerald-ink: #005236;

  --aura-blue-500: #3b82f6;
  --aura-blue-400: #3980f4;

  --aura-amber-500: #f59e0b;
  --aura-red-500:   #ba1a1a;

  /* Rebind Material tokens */
  --md-primary-fg-color:              var(--aura-slate-900);
  --md-primary-fg-color--light:       var(--aura-slate-800);
  --md-primary-fg-color--dark:        var(--aura-slate-950);
  --md-primary-bg-color:              var(--aura-white);
  --md-primary-bg-color--light:       rgba(255, 255, 255, 0.85);

  --md-accent-fg-color:               var(--aura-emerald-500);
  --md-accent-fg-color--transparent:  rgba(16, 185, 129, 0.12);
  --md-accent-bg-color:               var(--aura-white);
  --md-accent-bg-color--light:        rgba(255, 255, 255, 0.85);

  --md-default-bg-color:              var(--aura-surface);
  --md-default-fg-color:              var(--aura-slate-950);
  --md-default-fg-color--light:       var(--aura-slate-600);
  --md-default-fg-color--lighter:     var(--aura-slate-400);
  --md-default-fg-color--lightest:    var(--aura-slate-200);

  --md-typeset-color:                 #0b1c30;
  --md-typeset-a-color:               var(--aura-blue-500);

  --md-code-bg-color:                 #eef2f8;
  --md-code-fg-color:                 #1f2937;

  /* Aura typography */
  --md-text-font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --md-code-font: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

/* =========================================================================
   Fonts — Hanken Grotesk (headlines), Inter (body), JetBrains Mono (labels)
   ========================================================================= */
@import url("https://fonts.googleapis.com/css2?family=Hanken+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap");

body,
.md-typeset {
  font-family: "Inter", var(--md-text-font);
  font-feature-settings: "cv02", "cv03", "cv04", "cv11";
  color: var(--md-typeset-color);
  background-color: var(--md-default-bg-color);
}

.md-typeset h1,
.md-typeset h2,
.md-typeset h3,
.md-typeset h4,
.md-typeset h5,
.md-typeset h6 {
  font-family: "Hanken Grotesk", "Inter", sans-serif;
  color: var(--aura-slate-950);
  letter-spacing: -0.01em;
  font-weight: 600;
}

.md-typeset h1 {
  font-size: 2.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-top: 0.4rem;
  margin-bottom: 1.25rem;
}

.md-typeset h2 {
  font-size: 1.65rem;
  border-bottom: 1px solid var(--aura-slate-200);
  padding-bottom: 0.35rem;
  margin-top: 2.25rem;
  margin-bottom: 1.1rem;
}

.md-typeset h3 { font-size: 1.25rem; margin-top: 1.75rem; }
.md-typeset h4 { font-size: 1.05rem; margin-top: 1.5rem; }

/* =========================================================================
   Header — Deep Slate top bar with emerald active accent
   ========================================================================= */
.md-header {
  background-color: var(--aura-slate-900);
  box-shadow: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.md-header--shadow {
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.06);
}

.md-header__title {
  font-family: "Hanken Grotesk", sans-serif;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.md-tabs {
  background-color: var(--aura-slate-900);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.md-tabs__link {
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.85rem;
  opacity: 1;
  transition: color 0.15s ease;
}

.md-tabs__link:hover,
.md-tabs__link:focus {
  color: #ffffff;
}

.md-tabs__link--active,
.md-tabs__item--active > .md-tabs__link {
  color: #ffffff;
  font-weight: 600;
  position: relative;
}

.md-tabs__link--active::after,
.md-tabs__item--active > .md-tabs__link::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--aura-emerald-200);
  border-radius: 2px;
}

.md-search__form {
  background-color: rgba(255, 255, 255, 0.08);
  border-radius: 8px;
}

/* Header identity chip (LinkedIn) — replaces the usual repo widget.
   We repurpose Material's .md-header__source slot; the label is set via
   mkdocs.yml's repo_name and the link via repo_url. */
.md-header__source {
  max-width: none;
  width: auto;
}
.md-source {
  font-family: "Hanken Grotesk", "Inter", sans-serif;
}
.md-source__icon {
  color: #ffffff;
}
.md-source__repository {
  font-weight: 600;
  font-size: 0.82rem;
  color: #ffffff;
  max-width: none;
  overflow: visible;
  margin-left: 0.4rem;
  opacity: 1;
}
/* Hide the auto-fetched repo facts (stars, forks) — they don't apply here */
.md-source__facts { display: none; }

.md-search__input {
  color: #ffffff;
}
.md-search__input::placeholder {
  color: rgba(255, 255, 255, 0.55);
}
.md-search__input:hover,
.md-search__form:hover {
  background-color: rgba(255, 255, 255, 0.14);
}

/* When search is open (focused / overlay mode), Material gives the form
   a light background — flip the input text to dark so it stays readable. */
[data-md-toggle="search"]:checked ~ .md-header .md-search__form,
.md-search__form:focus-within {
  background-color: var(--aura-white);
}
[data-md-toggle="search"]:checked ~ .md-header .md-search__input,
.md-search__form:focus-within .md-search__input {
  color: var(--aura-slate-950);
}
[data-md-toggle="search"]:checked ~ .md-header .md-search__input::placeholder,
.md-search__form:focus-within .md-search__input::placeholder {
  color: var(--aura-slate-400);
}
[data-md-toggle="search"]:checked ~ .md-header .md-search__icon,
.md-search__form:focus-within .md-search__icon {
  color: var(--aura-slate-600);
}

/* =========================================================================
   Sidebar navigation — cleaner, tighter, monospace section labels
   ========================================================================= */
.md-nav__title {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--aura-slate-400);
  font-weight: 500;
}

.md-nav__link {
  color: var(--aura-slate-600);
  transition: color 0.15s ease, background-color 0.15s ease;
  border-radius: 4px;
  padding: 0.2rem 0.4rem;
}
.md-nav__link:hover {
  color: var(--aura-slate-950);
  background-color: var(--aura-slate-50);
}
.md-nav__link--active,
.md-nav__item--active > .md-nav__link {
  color: var(--aura-slate-950);
  font-weight: 600;
}

/* =========================================================================
   Content surface — cards, admonitions, tables, buttons
   ========================================================================= */

/* Grid cards (from mkdocs-material `.grid.cards`) — bento-style */
.md-typeset .grid.cards > ol > li,
.md-typeset .grid.cards > ul > li,
.md-typeset .grid > .card {
  background: var(--aura-white);
  border: 1px solid var(--aura-slate-200);
  border-radius: 10px;
  padding: 1.5rem;
  transition: transform 0.2s cubic-bezier(0.2, 0, 0, 1),
              border-color 0.2s ease,
              box-shadow 0.2s ease;
  box-shadow: none;
}

.md-typeset .grid.cards > ol > li:hover,
.md-typeset .grid.cards > ul > li:hover,
.md-typeset .grid > .card:hover {
  transform: translateY(-3px);
  border-color: var(--aura-emerald-400);
  box-shadow: 0 6px 24px rgba(15, 23, 42, 0.08);
}

/* Featured "practice" card — dark variant on the home page.
   Applied via .aura-card-dark class OR the 3rd grid-card on the home page
   (Practice is always the 3rd Start-here card). */
.md-typeset .aura-card-dark,
.md-typeset .grid.cards > ul > li:nth-child(3) {
  background: var(--aura-slate-900);
  color: #ffffff;
  border-color: var(--aura-slate-900);
}
.md-typeset .aura-card-dark:hover,
.md-typeset .grid.cards > ul > li:nth-child(3):hover {
  border-color: var(--aura-emerald-400);
}
.md-typeset .aura-card-dark p,
.md-typeset .aura-card-dark li,
.md-typeset .aura-card-dark strong,
.md-typeset .grid.cards > ul > li:nth-child(3) p,
.md-typeset .grid.cards > ul > li:nth-child(3) strong { color: rgba(255, 255, 255, 0.82); }
.md-typeset .aura-card-dark h1,
.md-typeset .aura-card-dark h2,
.md-typeset .aura-card-dark h3,
.md-typeset .aura-card-dark h4,
.md-typeset .grid.cards > ul > li:nth-child(3) h1,
.md-typeset .grid.cards > ul > li:nth-child(3) h2,
.md-typeset .grid.cards > ul > li:nth-child(3) h3,
.md-typeset .grid.cards > ul > li:nth-child(3) h4 { color: #ffffff; }
.md-typeset .aura-card-dark a,
.md-typeset .grid.cards > ul > li:nth-child(3) a { color: var(--aura-emerald-200); }
.md-typeset .grid.cards > ul > li:nth-child(3) hr {
  border-color: rgba(255, 255, 255, 0.15);
}

/* Admonitions — thick left-border, subdued fill, editorial header */
.md-typeset .admonition,
.md-typeset details {
  background: var(--aura-white);
  border: 1px solid var(--aura-slate-200);
  border-left: 4px solid var(--aura-slate-400);
  border-radius: 8px;
  box-shadow: none;
  padding: 0;
}

.md-typeset .admonition-title,
.md-typeset summary {
  background: transparent;
  font-family: "Hanken Grotesk", sans-serif;
  font-weight: 600;
  font-size: 0.98rem;
  padding: 0.75rem 1rem 0.35rem 2.4rem;
  border: none;
}

.md-typeset .admonition-title::before,
.md-typeset summary::before {
  top: 0.85rem;
  left: 0.85rem;
}

.md-typeset .admonition > *:not(.admonition-title):not(summary),
.md-typeset details > *:not(summary) {
  padding-left: 1rem;
  padding-right: 1rem;
}
.md-typeset .admonition > *:last-child,
.md-typeset details > *:last-child { padding-bottom: 0.9rem; }

.md-typeset .admonition.info,
.md-typeset details.info {
  border-left-color: var(--aura-emerald-500);
  background: linear-gradient(0deg, rgba(16, 185, 129, 0.04), rgba(16, 185, 129, 0.04)), var(--aura-white);
}
.md-typeset .info > .admonition-title::before,
.md-typeset details.info > summary::before { background-color: var(--aura-emerald-500); }

.md-typeset .admonition.tip,
.md-typeset details.tip {
  border-left-color: var(--aura-emerald-500);
}
.md-typeset .tip > .admonition-title::before,
.md-typeset details.tip > summary::before { background-color: var(--aura-emerald-500); }

.md-typeset .admonition.note,
.md-typeset details.note {
  border-left-color: var(--aura-blue-500);
}
.md-typeset .note > .admonition-title::before,
.md-typeset details.note > summary::before { background-color: var(--aura-blue-500); }

.md-typeset .admonition.warning,
.md-typeset details.warning,
.md-typeset .admonition.caution,
.md-typeset details.caution {
  border-left-color: var(--aura-amber-500);
}

.md-typeset .admonition.danger,
.md-typeset details.danger,
.md-typeset .admonition.failure,
.md-typeset details.failure {
  border-left-color: var(--aura-red-500);
}

/* Tables — editorial: light header, thin bottom dividers, mono column heads */
.md-typeset table:not([class]) {
  background: var(--aura-white);
  border: 1px solid var(--aura-slate-200);
  border-radius: 10px;
  overflow: hidden;
  border-collapse: separate;
  border-spacing: 0;
  box-shadow: none;
  font-size: 0.88rem;
}

.md-typeset table:not([class]) th {
  background: var(--aura-slate-50);
  color: var(--aura-slate-600);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--aura-slate-200);
  padding: 0.75rem 1rem;
}

.md-typeset table:not([class]) td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--aura-slate-100);
  border-top: none;
}

.md-typeset table:not([class]) tr:last-child td {
  border-bottom: none;
}

.md-typeset table:not([class]) tr:hover td {
  background: rgba(220, 233, 255, 0.35);
}

/* Inline code + code blocks */
.md-typeset code {
  background: var(--md-code-bg-color);
  color: var(--md-code-fg-color);
  border-radius: 4px;
  padding: 0.1em 0.35em;
  font-size: 0.86em;
}

.md-typeset pre > code {
  border-radius: 8px;
  border: 1px solid var(--aura-slate-200);
  padding: 1rem 1.25rem;
  font-size: 0.85em;
}

/* Buttons */
.md-typeset .md-button {
  border-radius: 6px;
  font-family: "Hanken Grotesk", sans-serif;
  font-weight: 600;
  border: 1px solid var(--aura-slate-900);
  background: var(--aura-slate-900);
  color: #ffffff;
  padding: 0.55rem 1.1rem;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
  box-shadow: none;
}
.md-typeset .md-button:hover {
  background: var(--aura-slate-950);
  border-color: var(--aura-slate-950);
  color: #ffffff;
}
.md-typeset .md-button--primary {
  background: var(--aura-emerald-500);
  border-color: var(--aura-emerald-500);
  color: #ffffff;
}
.md-typeset .md-button--primary:hover {
  background: #0ea472;
  border-color: #0ea472;
}

/* Blockquotes — editorial */
.md-typeset blockquote {
  border-left: 3px solid var(--aura-emerald-500);
  color: var(--aura-slate-600);
  background: var(--aura-slate-50);
  padding: 0.75rem 1rem;
  border-radius: 0 6px 6px 0;
}

/* =========================================================================
   Aura eyebrow label (uppercase mono) — utility for hero sections
   ========================================================================= */
.md-typeset .aura-eyebrow {
  display: inline-block;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--aura-emerald-500);
  margin-bottom: 0.75rem;
}

/* Aura pill row — used under the hero paragraph */
.md-typeset .aura-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1rem 0 1.5rem;
  padding-left: 0;
  list-style: none;
}
.md-typeset .aura-pills li {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.85rem;
  background: var(--aura-white);
  border: 1px solid var(--aura-slate-200);
  border-radius: 999px;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--aura-slate-600);
}
.md-typeset .aura-pills li.aura-pill-accent {
  background: var(--aura-emerald-50);
  border-color: var(--aura-emerald-200);
  color: var(--aura-emerald-ink);
}

/* Aura fact list — used inside "Exam at a glance" admonition */
.md-typeset .aura-facts {
  list-style: none;
  padding-left: 0;
  margin: 0.5rem 0;
}
.md-typeset .aura-facts li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--aura-slate-100);
}
.md-typeset .aura-facts li:last-child { border-bottom: none; }
.md-typeset .aura-facts .aura-fact-label {
  color: var(--aura-slate-600);
  font-weight: 500;
}
.md-typeset .aura-facts .aura-fact-value {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.82rem;
  color: var(--aura-slate-950);
  background: var(--aura-slate-50);
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
}

/* Footer polish */
.md-footer {
  background-color: var(--aura-slate-900);
}
.md-footer-meta {
  background-color: var(--aura-slate-950);
}
.md-footer__link {
  border-radius: 6px;
}

/* Search results dropdown */
.md-search-result__meta {
  background: var(--aura-slate-50);
  color: var(--aura-slate-600);
}

/* TOC (right rail) */
.md-nav--secondary .md-nav__title {
  background: transparent;
  color: var(--aura-slate-600);
}

/* Ensure body links animate */
.md-typeset a {
  transition: color 0.15s ease;
}
.md-typeset a:hover {
  color: var(--aura-slate-950);
  text-decoration: underline;
  text-decoration-color: var(--aura-emerald-400);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

/* Quiz surface stays consistent with Aura tables/cards */
#quiz-root {
  background: var(--aura-white);
  border: 1px solid var(--aura-slate-200);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 2px 16px rgba(15, 23, 42, 0.04);
}