/* ==========================================================================
   Koji Docs — Brand override for Material for MkDocs
   Matches the marketing site at getkoji.dev — cream palette, Japanese
   vermillion accent, Fraunces serif for display, Instrument Sans for body,
   JetBrains Mono for code.
   ========================================================================== */

/* Load Fraunces for display headings (body + code fonts come from mkdocs.yml) */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,300..700&display=swap');

/* ---------- Design tokens ------------------------------------------------- */

:root {
  /* Warm cream palette */
  --koji-cream: #F4EEE2;
  --koji-cream-2: #ECE3D0;
  --koji-cream-3: #DFD3B9;
  --koji-cream-4: #C9BC9E;

  /* Ink — warm near-black */
  --koji-ink: #171410;
  --koji-ink-2: #3A3328;
  --koji-ink-3: #665C4B;
  --koji-ink-4: #998E78;

  /* Accents */
  --koji-vermillion: #C33520;
  --koji-vermillion-2: #992718;
  --koji-vermillion-tint: #F2D9D2;
  --koji-ochre: #A8802E;

  --koji-border: rgba(23, 20, 16, 0.12);
  --koji-border-strong: rgba(23, 20, 16, 0.22);

  --koji-font-display: 'Fraunces', 'Times New Roman', serif;

  /* ---------- Material variable overrides ---------- */

  /* Primary = vermillion (used in header, hover states, active nav) */
  --md-primary-fg-color: var(--koji-vermillion);
  --md-primary-fg-color--light: #E04A34;
  --md-primary-fg-color--dark: var(--koji-vermillion-2);
  --md-primary-bg-color: var(--koji-cream);
  --md-primary-bg-color--light: var(--koji-cream-2);

  /* Accent = ink for links/interactive contrast */
  --md-accent-fg-color: var(--koji-vermillion);
  --md-accent-fg-color--transparent: rgba(195, 53, 32, 0.12);
  --md-accent-bg-color: var(--koji-cream);
  --md-accent-bg-color--light: var(--koji-cream-2);

  /* Default surfaces */
  --md-default-bg-color: var(--koji-cream);
  --md-default-bg-color--light: var(--koji-cream-2);
  --md-default-bg-color--lighter: rgba(244, 238, 226, 0.7);
  --md-default-bg-color--lightest: rgba(244, 238, 226, 0.4);

  --md-default-fg-color: var(--koji-ink);
  --md-default-fg-color--light: var(--koji-ink-2);
  --md-default-fg-color--lighter: var(--koji-ink-3);
  --md-default-fg-color--lightest: var(--koji-ink-4);

  /* Code blocks */
  --md-code-bg-color: var(--koji-ink);
  --md-code-fg-color: var(--koji-cream-2);
  --md-code-hl-color: rgba(195, 53, 32, 0.18);
  --md-code-hl-number-color: #F2A57B;
  --md-code-hl-string-color: #C8D79D;
  --md-code-hl-keyword-color: #E8C583;
  --md-code-hl-name-color: var(--koji-cream-2);
  --md-code-hl-operator-color: #8A8577;
  --md-code-hl-punctuation-color: #8A8577;
  --md-code-hl-comment-color: #736B5A;
  --md-code-hl-generic-color: var(--koji-cream-3);
  --md-code-hl-variable-color: var(--koji-cream);
  --md-code-hl-special-color: var(--koji-vermillion);
  --md-code-hl-function-color: var(--koji-cream);
  --md-code-hl-constant-color: #F2A57B;

  /* Typeset */
  --md-typeset-color: var(--koji-ink);
  --md-typeset-a-color: var(--koji-vermillion);
  --md-typeset-mark-color: rgba(195, 53, 32, 0.18);
  --md-typeset-del-color: rgba(195, 53, 32, 0.15);
  --md-typeset-ins-color: rgba(200, 215, 157, 0.35);
  --md-typeset-kbd-color: var(--koji-cream-2);
  --md-typeset-kbd-accent-color: var(--koji-cream);
  --md-typeset-kbd-border-color: var(--koji-border-strong);
  --md-typeset-table-color: var(--koji-border-strong);
  --md-typeset-table-color--light: var(--koji-border);

  /* Footer */
  --md-footer-fg-color: var(--koji-cream-2);
  --md-footer-fg-color--light: var(--koji-cream-3);
  --md-footer-fg-color--lighter: var(--koji-cream-4);
  --md-footer-bg-color: var(--koji-ink);
  --md-footer-bg-color--dark: #0E0C09;

  /* Admonitions default */
  --md-admonition-fg-color: var(--koji-ink-2);
  --md-admonition-bg-color: var(--koji-cream-2);

  /* Shadows — warmer */
  --md-shadow-z1: 0 1px 2px rgba(23, 20, 16, 0.05);
  --md-shadow-z2: 0 4px 14px rgba(23, 20, 16, 0.08);
  --md-shadow-z3: 0 12px 48px rgba(23, 20, 16, 0.14);
}

/* ---------- Typography ---------------------------------------------------- */

body,
.md-typeset {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.md-typeset {
  font-size: 0.82rem;
  line-height: 1.65;
  color: var(--koji-ink);
}

/* Display headings use Fraunces */
.md-typeset h1,
.md-typeset h2,
.md-typeset h3,
.md-typeset h4 {
  font-family: var(--koji-font-display);
  font-variation-settings: 'opsz' 96, 'SOFT' 50;
  color: var(--koji-ink);
  letter-spacing: -0.02em;
  font-weight: 500;
  text-wrap: balance;
}

.md-typeset h1 {
  font-size: 2rem;
  line-height: 1.08;
  font-variation-settings: 'opsz' 144, 'SOFT' 50;
  margin: 0 0 1rem;
  font-weight: 500;
}

.md-typeset h2 {
  font-size: 1.75rem;
  line-height: 1.15;
  margin-top: 2.5em;
  padding-top: 1em;
  border-top: 1px solid var(--koji-border);
}

.md-typeset h2:first-of-type {
  border-top: none;
  padding-top: 0;
  margin-top: 1.75em;
}

.md-typeset h3 {
  font-size: 1.3rem;
  line-height: 1.2;
  margin-top: 2em;
}

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

.md-typeset h5,
.md-typeset h6 {
  font-family: inherit;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 600;
  color: var(--koji-ink-3);
}

.md-typeset p {
  color: var(--koji-ink-2);
}

/* ---------- Header -------------------------------------------------------- */

.md-header {
  background: var(--koji-cream);
  color: var(--koji-ink);
  border-bottom: 1px solid var(--koji-border);
  box-shadow: none;
  height: 3.2rem;
}

.md-header__inner {
  height: 3.2rem;
  display: flex;
  align-items: center;
}

.md-header[data-md-state="shadow"] {
  box-shadow: 0 1px 0 var(--koji-border), 0 2px 8px rgba(23, 20, 16, 0.04);
}

.md-header__button {
  color: var(--koji-ink);
}

/*
 * Header title centering.
 *
 * Fraunces (like most serif fonts) has asymmetric font metrics — the glyph
 * baseline isn't at the geometric center of the em box, so plain flex
 * centering makes short words appear too high or too low. We use modern
 * `text-box-trim` to strip the leading space above cap-height and below
 * the alphabetic baseline, which makes the glyph block center perfectly.
 * Chrome 133+ / Safari 18.2+. Fallback is unset line-height.
 */
.md-header__title {
  font-family: var(--koji-font-display);
  font-size: 1.35rem;
  font-weight: 500;
  color: var(--koji-ink);
  font-variation-settings: 'opsz' 144, 'SOFT' 30;
  letter-spacing: -0.01em;
  margin: 0 0 0 0.25rem;
  line-height: normal;
  display: flex;
  align-items: center;
  height: 100%;
}

.md-header__title .md-header__ellipsis {
  display: flex;
  align-items: center;
}

.md-header__title .md-ellipsis {
  line-height: 1;
  text-box-trim: trim-both;
  text-box-edge: cap alphabetic;
  /* Let the "j" descender render outside the trimmed box.
     Safe here because we control the header title text (always "Koji"). */
  overflow: visible;
}

/* Bigger branch mark in the header */
.md-header__button.md-logo {
  padding: 0.4rem;
  margin: 0;
}

.md-header__button.md-logo img,
.md-header__button.md-logo svg {
  width: 2rem;
  height: 2rem;
}

.md-header__topic:first-child {
  font-weight: 500;
}

.md-header__topic .md-ellipsis {
  color: var(--koji-ink);
}

/* Search box in header */
.md-search__form {
  background: var(--koji-cream-2);
  border: 1px solid var(--koji-border);
  border-radius: 3px;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.md-search__form:hover {
  background: var(--koji-cream-2);
  border-color: var(--koji-border-strong);
}

[data-md-toggle="search"]:checked ~ .md-header .md-search__form {
  background: var(--koji-cream);
  border-color: var(--koji-vermillion);
  box-shadow: 0 0 0 3px rgba(195, 53, 32, 0.1);
}

.md-search__input {
  color: var(--koji-ink);
  font-family: var(--md-text-font-family);
}

.md-search__input::placeholder {
  color: var(--koji-ink-4);
}

.md-search__icon {
  color: var(--koji-ink-3);
}

/* ---------- Tabs (top-level nav) ----------------------------------------- */

.md-tabs {
  background: var(--koji-cream);
  color: var(--koji-ink);
  border-bottom: 1px solid var(--koji-border);
}

.md-tabs__link {
  color: var(--koji-ink-2);
  opacity: 1;
  font-size: 0.78rem;
  font-weight: 500;
}

.md-tabs__link:hover,
.md-tabs__link--active {
  color: var(--koji-vermillion);
}

/* ---------- Sidebar nav --------------------------------------------------- */

.md-nav {
  font-size: 0.76rem;
}

.md-nav__title {
  color: var(--koji-ink-3);
  font-family: var(--md-text-font-family);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  padding-top: 0;
  padding-bottom: 0.75rem;
}

.md-nav__link {
  color: var(--koji-ink-2);
  transition: color 0.2s;
  padding: 0.3rem 0;
}

.md-nav__link:hover {
  color: var(--koji-vermillion);
}

.md-nav__link--active,
.md-nav__link--active code {
  color: var(--koji-vermillion);
  font-weight: 500;
}

/* Active item indicator */
.md-nav__item .md-nav__link--active {
  position: relative;
}

.md-nav__item .md-nav__link--active::before {
  content: '';
  position: absolute;
  left: -0.8rem;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 16px;
  background: var(--koji-vermillion);
  border-radius: 2px;
}

/* Section headers in sidebar */
.md-nav__item--section > .md-nav__link {
  font-family: var(--md-text-font-family);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--koji-ink-3);
  font-weight: 600;
}

/* ---------- Main content -------------------------------------------------- */

.md-main__inner {
  margin-top: 1rem;
}

.md-content__inner {
  margin: 0 auto;
  padding-top: 0.5rem;
}

.md-content__inner:before {
  display: none;
}

.md-sidebar {
  padding-top: 0.5rem;
}

/* ---------- Links --------------------------------------------------------- */

.md-typeset a {
  color: var(--koji-vermillion);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 0.2s, text-decoration-color 0.2s;
}

.md-typeset a:hover {
  color: var(--koji-vermillion-2);
  text-decoration-thickness: 2px;
}

/* ---------- Inline code --------------------------------------------------- */

.md-typeset code {
  background: var(--koji-cream-2);
  border: 1px solid var(--koji-border);
  color: var(--koji-ink);
  padding: 0.1em 0.4em;
  border-radius: 2px;
  font-size: 0.86em;
}

.md-typeset a code {
  background: var(--koji-vermillion-tint);
  border-color: rgba(195, 53, 32, 0.2);
  color: var(--koji-vermillion-2);
}

/* ---------- Code blocks --------------------------------------------------- */

.md-typeset pre > code,
.md-typeset .highlight pre > code {
  background: var(--koji-ink);
  color: var(--koji-cream-2);
  border-radius: 3px;
  border: none;
  padding: 1.25rem 1.5rem;
  font-size: 0.8rem;
  line-height: 1.7;
  box-shadow: 0 6px 20px rgba(23, 20, 16, 0.1);
}

.md-typeset .highlight .filename,
.md-typeset .highlight [data-linenos]:before {
  background: transparent;
  color: var(--koji-cream-4);
}

/* Copy button on code blocks */
.md-clipboard {
  color: var(--koji-cream-4);
  transition: color 0.2s;
}

.md-clipboard:hover {
  color: var(--koji-vermillion);
}

/* ---------- Blockquotes --------------------------------------------------- */

.md-typeset blockquote {
  border-left: 3px solid var(--koji-vermillion);
  background: var(--koji-cream-2);
  color: var(--koji-ink-2);
  padding: 1rem 1.25rem;
  border-radius: 0 3px 3px 0;
  font-style: italic;
  font-family: var(--koji-font-display);
  font-size: 1rem;
  font-variation-settings: 'opsz' 24, 'SOFT' 80;
}

.md-typeset blockquote p {
  margin: 0;
}

/* ---------- Tables -------------------------------------------------------- */

.md-typeset table:not([class]) {
  background: var(--koji-cream);
  border: 1px solid var(--koji-border);
  border-radius: 3px;
  overflow: hidden;
  font-size: 0.8rem;
  box-shadow: none;
}

.md-typeset table:not([class]) th {
  background: var(--koji-cream-2);
  color: var(--koji-ink);
  font-family: var(--md-text-font-family);
  font-weight: 600;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--koji-border-strong);
}

.md-typeset table:not([class]) td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--koji-border);
  color: var(--koji-ink-2);
}

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

.md-typeset table:not([class]) tr:hover {
  background: var(--koji-cream-2);
}

/* ---------- Admonitions --------------------------------------------------- */

.md-typeset .admonition,
.md-typeset details {
  background: var(--koji-cream-2);
  border: 1px solid var(--koji-border);
  border-left: 3px solid var(--koji-vermillion);
  border-radius: 0 3px 3px 0;
  box-shadow: none;
  font-size: 0.8rem;
}

.md-typeset .admonition-title,
.md-typeset summary {
  background: transparent;
  color: var(--koji-ink);
  font-weight: 600;
  font-family: var(--md-text-font-family);
  padding: 0.7rem 0.9rem 0.7rem 2.2rem;
  border-bottom: none;
}

.md-typeset .admonition-title::before,
.md-typeset summary::before {
  background-color: var(--koji-vermillion);
}

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

.md-typeset .admonition.warning,
.md-typeset details.warning {
  border-left-color: var(--koji-vermillion);
}

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

/* ---------- Footer -------------------------------------------------------- */

.md-footer {
  background: var(--koji-ink);
  color: var(--koji-cream-3);
}

.md-footer-meta {
  background: #0E0C09;
}

.md-footer-meta__inner {
  font-size: 0.75rem;
}

.md-footer__link {
  color: var(--koji-cream-2);
}

.md-footer__link:hover {
  color: var(--koji-vermillion);
}

.md-footer__title {
  font-family: var(--koji-font-display);
  font-variation-settings: 'opsz' 72, 'SOFT' 50;
  font-weight: 400;
}

/* ---------- Tables of contents (right sidebar) --------------------------- */

.md-nav--secondary .md-nav__title {
  color: var(--koji-ink-3);
  box-shadow: 0 -1px 0 var(--koji-border) inset;
}

.md-nav--secondary .md-nav__link {
  color: var(--koji-ink-3);
}

.md-nav--secondary .md-nav__link--active {
  color: var(--koji-vermillion);
}

/* ---------- Selection ----------------------------------------------------- */

::selection {
  background: var(--koji-vermillion);
  color: var(--koji-cream);
}

/* ---------- Tabbed content ------------------------------------------------ */

.md-typeset .tabbed-set > input + label {
  color: var(--koji-ink-3);
  font-family: var(--md-text-font-family);
  font-size: 0.78rem;
  font-weight: 500;
}

.md-typeset .tabbed-set > input:checked + label {
  color: var(--koji-vermillion);
  border-bottom-color: var(--koji-vermillion);
}

/* ---------- Scrollbar (webkit) -------------------------------------------- */

::-webkit-scrollbar-thumb {
  background: var(--koji-cream-3);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--koji-cream-4);
}

/* ---------- Remove default Material rainbow border ----------------------- */

.md-header__topic + .md-header__topic:nth-child(2) .md-ellipsis {
  color: var(--koji-ink-3);
}