/* ============================================================
   kbian.org look for the wiki.
   Tokens are copied from the main site's stylesheets/styles.css
   (section 0, "Theme Variables") and mapped onto Material's
   variables, so both sites share one palette, typeface and chrome.
   `slate` = the main site's [data-theme="dark"] (the default there
   and here), `default` = its light theme.
   ============================================================ */

/* ---------- tokens: light ---------- */
[data-md-color-scheme="default"] {
  --kb-bg-body: #ffffff;
  --kb-bg-card: #ffffff;
  --kb-bg-code: #f8f8f8;
  --kb-bg-nav: #ffffff;
  --kb-bg-section: #f9fafb;
  --kb-bg-input: #f4f4f4;
  --kb-bg-tag: #e5e7eb;
  --kb-bg-button: #f3f4f6;

  --kb-text-primary: #222222;
  --kb-text-body: #4a4a4a;
  --kb-text-muted: #6b7280;
  --kb-text-nav: #4b5563;
  --kb-text-h1: #1f2933;
  --kb-text-h2: #1036a9;
  --kb-text-h3: #0056b3;
  --kb-text-h-sub: #494949;

  --kb-link: #4a6fa5;
  --kb-link-hover: #0056b3;

  --kb-border: #e2e8f0;
  --kb-border-2: #e5e5e5;

  --kb-nav-hover-bg: #e5edff;
  --kb-nav-hover-color: #093eff;
  --kb-button-hover-bg: #093eff;
  --kb-button-hover-color: #ffffff;

  --kb-shadow-card: rgba(15, 23, 42, 0.12);
  --kb-shadow-card-hover: rgba(15, 23, 42, 0.18);
}

/* ---------- tokens: dark ---------- */
[data-md-color-scheme="slate"] {
  --kb-bg-body: #0f0f0f;
  --kb-bg-card: #1a1a1a;
  --kb-bg-code: #161616;
  --kb-bg-nav: #141414;
  --kb-bg-section: #161616;
  --kb-bg-input: #1f1f1f;
  --kb-bg-tag: #242424;
  --kb-bg-button: #1f1f1f;

  --kb-text-primary: #f5f5f5;
  --kb-text-body: #d4d4d4;
  --kb-text-muted: #888888;
  --kb-text-nav: #c4c4c4;
  --kb-text-h1: #f5f5f5;
  --kb-text-h2: #6e8fbd;
  --kb-text-h3: #6e8fbd;
  --kb-text-h-sub: #c4c4c4;

  --kb-link: #6e8fbd;
  --kb-link-hover: #8aa7d0;

  --kb-border: #2a2a2a;
  --kb-border-2: #2a2a2a;

  --kb-nav-hover-bg: #242424;
  --kb-nav-hover-color: #8aa7d0;
  --kb-button-hover-bg: #4a6fa5;
  --kb-button-hover-color: #f5f5f5;

  --kb-shadow-card: rgba(0, 0, 0, 0.5);
  --kb-shadow-card-hover: rgba(0, 0, 0, 0.65);
}

/* ---------- tokens -> Material ---------- */
[data-md-color-scheme="default"],
[data-md-color-scheme="slate"] {
  --md-default-bg-color: var(--kb-bg-body);
  --md-default-fg-color: var(--kb-text-primary);
  --md-default-fg-color--light: var(--kb-text-muted);
  --md-default-fg-color--lighter: color-mix(in srgb, var(--kb-text-muted) 45%, transparent);
  --md-default-fg-color--lightest: var(--kb-border);

  --md-primary-fg-color: var(--kb-bg-nav);
  --md-primary-fg-color--light: var(--kb-bg-nav);
  --md-primary-fg-color--dark: var(--kb-bg-nav);
  --md-primary-bg-color: var(--kb-text-nav);
  --md-primary-bg-color--light: var(--kb-text-muted);

  --md-accent-fg-color: var(--kb-link-hover);
  --md-accent-fg-color--transparent: color-mix(in srgb, var(--kb-link) 12%, transparent);
  --md-accent-bg-color: var(--kb-bg-body);

  --md-typeset-color: var(--kb-text-body);
  --md-typeset-a-color: var(--kb-link);
  --md-typeset-mark-color: color-mix(in srgb, var(--kb-link) 28%, transparent);
  --md-typeset-table-color: var(--kb-border);
  --md-typeset-table-color--light: var(--kb-bg-section);

  --md-code-bg-color: var(--kb-bg-code);
  --md-code-fg-color: var(--kb-text-body);
  --md-code-hl-color: color-mix(in srgb, var(--kb-link) 20%, transparent);

  --md-admonition-bg-color: var(--kb-bg-card);
  --md-admonition-fg-color: var(--kb-text-body);

  --md-footer-bg-color: var(--kb-bg-body);
  --md-footer-bg-color--dark: var(--kb-bg-body);
  --md-footer-fg-color: var(--kb-text-body);
  --md-footer-fg-color--light: var(--kb-text-muted);
  --md-footer-fg-color--lighter: var(--kb-text-muted);

  --md-shadow-z1: 0 4px 16px var(--kb-shadow-card);
  --md-shadow-z2: 0 6px 20px var(--kb-shadow-card);
  --md-shadow-z3: 0 10px 28px var(--kb-shadow-card-hover);
}

body {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "liga", "calt";
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* ============================================================
   Header — the kbian.org navbar
   ============================================================ */
.md-header {
  background-color: var(--kb-bg-nav);
  color: var(--kb-text-nav);
  box-shadow: none;
  border-bottom: 1px solid var(--kb-border);
}
.md-header--shadow {
  box-shadow: none;
}

.md-header__inner {
  height: 3rem; /* 60px on the main site at its 17px root; Material's rem is 20px */
  padding: 0 0.4rem;
}

/* Text brand in place of the logo + page-title swap. */
.md-header__title.kb-brand {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  height: 3rem;
  margin-left: 0.8rem;
  line-height: 1;
  font-size: 0.8rem;
  white-space: nowrap;
  overflow: hidden;
}
.kb-brand__name {
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--kb-text-primary);
  transition: opacity 0.2s ease;
}
.kb-brand__sep {
  color: var(--kb-text-muted);
  font-weight: 400;
}
.kb-brand__sub {
  font-weight: 500;
  color: var(--kb-text-muted);
  transition: color 0.2s ease;
}
.kb-brand__name:hover { opacity: 0.7; color: var(--kb-text-primary); }
.kb-brand__sub:hover { color: var(--kb-text-primary); }

/* Icon pills — labels are collapsed at rest and spring open on approach. */
.kb-nav {
  display: flex;
  align-items: center;
  gap: 2px;
}

/* Material decides when its own header buttons show (e.g. the search
   label only on narrow screens), so only the pills get an explicit display. */
.kb-pill { display: inline-flex; }
.kb-pill,
.md-header .md-header__button.md-icon,
.md-header__option > label.md-header__button {
  align-items: center;
  margin: 0;
  padding: 7px 11px;
  border: none;
  border-radius: 999px;
  background: transparent;
  color: var(--kb-text-nav);
  font: inherit;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  opacity: 1;
  transition: background-color 0.4s cubic-bezier(0.2, 0.8, 0.2, 1),
    color 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.md-header__option > label.md-header__button[hidden] { display: none; }

.kb-ico,
.md-header .md-header__button.md-icon svg {
  flex: none;
  display: block;
  width: 22px;
  height: 22px;
}

/* The kb/* theme icons are stroked outlines; stop Material filling them. */
.md-icon svg.kb-stroke,
.md-search__icon svg.kb-stroke {
  fill: none;
  stroke: currentColor;
}

.kb-pill__label {
  max-width: 0;
  margin-left: 0;
  opacity: 0;
  overflow: hidden;
  white-space: nowrap;
  font-size: 0.64rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1.5;
  transition: max-width 0.42s cubic-bezier(0.2, 0.8, 0.2, 1),
    margin-left 0.42s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.3s ease;
}

.kb-pill:hover,
.kb-pill:focus-visible,
.kb-pill.is-active,
.md-header .md-header__button.md-icon:hover,
.md-header__option > label.md-header__button:hover {
  background-color: var(--kb-nav-hover-bg);
  color: var(--kb-nav-hover-color);
  opacity: 1;
}

.kb-pill:hover .kb-pill__label,
.kb-pill:focus-visible .kb-pill__label,
.kb-pill.is-active .kb-pill__label {
  max-width: 9rem;
  margin-left: 8px;
  opacity: 1;
}

/* Phones: keep just the MISC + language pills. */
@media screen and (max-width: 44.9375em) {
  .kb-nav .kb-pill:not(.is-active):not(.translate-btn) { display: none; }
  .kb-pill,
  .md-header .md-header__button.md-icon,
  .md-header__option > label.md-header__button { padding: 9px 8px; }
  .kb-pill.is-active .kb-pill__label { max-width: 0; margin-left: 0; opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .kb-pill,
  .kb-pill__label { transition: none; }
}

/* ---------- section tabs under the bar ---------- */
.md-tabs {
  background-color: var(--kb-bg-nav);
  color: var(--kb-text-nav);
  border-bottom: 1px solid var(--kb-border);
}
.md-tabs__list {
  display: flex;
  align-items: center;
  gap: 2px;
  height: 2.6rem;
  margin-left: 0.2rem;
}
.md-tabs__item {
  display: inline-flex;
  align-items: center;
  height: auto;
  padding: 0;
}
.md-tabs__link {
  margin: 0;
  padding: 5px 13px;
  border-radius: 999px;
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--kb-text-nav);
  opacity: 1;
  transition: background-color 0.4s cubic-bezier(0.2, 0.8, 0.2, 1),
    color 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.md-tabs__link:hover,
.md-tabs__link:focus {
  color: var(--kb-nav-hover-color);
  background-color: var(--kb-nav-hover-bg);
}
.md-tabs__item--active .md-tabs__link {
  color: var(--kb-nav-hover-color);
  background-color: var(--kb-nav-hover-bg);
  font-weight: 600;
}

/* ---------- search ---------- */
.md-search__form {
  border-radius: 999px;
  background-color: var(--kb-bg-input);
}
.md-search__form:hover {
  background-color: var(--kb-bg-button);
}
.md-search__input {
  color: var(--kb-text-primary);
}
.md-search__input::placeholder,
.md-search__icon {
  color: var(--kb-text-muted);
}
[data-md-toggle="search"]:checked ~ .md-header .md-search__form {
  border-radius: 0.6rem 0.6rem 0 0;
  background-color: var(--kb-bg-card);
  box-shadow: none;
}
.md-search__output {
  border-radius: 0 0 0.6rem 0.6rem;
}
.md-search__scrollwrap,
.md-search-result__meta {
  background-color: var(--kb-bg-card);
}
.md-search-result__meta {
  color: var(--kb-text-muted);
}

/* ---------- translate dropdown ---------- */
[data-md-color-scheme] #google_translate_element {
  top: calc(100% + 8px);
  background: var(--kb-bg-card);
  border: 1px solid var(--kb-border);
  box-shadow: 0 6px 20px var(--kb-shadow-card);
}
[data-md-color-scheme] #google_translate_element .goog-te-combo {
  background: var(--kb-bg-input);
  color: var(--kb-text-body);
}

/* ============================================================
   Typography — headings, links, body copy
   ============================================================ */
.md-typeset {
  color: var(--kb-text-body);
}

.md-typeset h1 {
  margin-bottom: 1.2rem;
  padding-bottom: 0.4rem;
  border-bottom: 2px solid var(--kb-border);
  color: var(--kb-text-h1);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.2;
}
.md-typeset h2 {
  color: var(--kb-text-h2);
  font-weight: 600;
  letter-spacing: -0.005em;
}
.md-typeset h3 {
  color: var(--kb-text-h3);
  font-weight: 500;
}
.md-typeset h4,
.md-typeset h5,
.md-typeset h6 {
  color: var(--kb-text-h-sub);
  font-weight: 500;
}

.md-typeset strong,
.md-typeset b {
  color: var(--kb-text-primary);
  font-weight: 600;
}

.md-typeset a {
  color: var(--kb-link);
  transition: color 0.2s ease;
}
.md-typeset a:hover,
.md-typeset a:focus {
  color: var(--kb-link-hover);
  text-decoration: underline;
}
/* Headerlinks and card-style links shouldn't underline. */
.md-typeset .headerlink:hover,
.md-typeset a.home-card:hover,
.md-typeset a.article-item:hover,
.md-typeset a.article-preview__link:hover {
  text-decoration: none;
}

.md-typeset hr {
  border-bottom-color: var(--kb-border);
}

.md-typeset blockquote {
  border-left-color: var(--kb-link);
  color: var(--kb-text-muted);
}

.md-typeset code {
  border-radius: 0.3rem;
}

.md-typeset table:not([class]) {
  border: 1px solid var(--kb-border);
  border-radius: 0.5rem;
  background-color: var(--kb-bg-card);
}
.md-typeset table:not([class]) th {
  background-color: var(--kb-bg-section);
  color: var(--kb-text-primary);
  font-weight: 600;
}

.md-typeset .admonition,
.md-typeset details {
  border-width: 1px;
  border-radius: 0.6rem;
  box-shadow: none;
}

/* ============================================================
   Sidebars (TOC / nav)
   ============================================================ */
.md-nav__title {
  color: var(--kb-text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.6rem;
}
.md-nav__link {
  color: var(--kb-text-nav);
  transition: color 0.2s ease;
}
.md-nav__link:hover,
.md-nav__link:focus {
  color: var(--kb-link-hover);
}
.md-nav__link--active,
.md-nav__item .md-nav__link--active {
  color: var(--kb-link);
  font-weight: 600;
}
.md-sidebar__scrollwrap {
  scrollbar-color: var(--kb-border) transparent;
}

/* ============================================================
   Footer — quiet, like the main site's credit line
   ============================================================ */
.md-footer,
.md-footer-meta {
  background-color: var(--kb-bg-body);
  color: var(--kb-text-muted);
}
.md-footer-meta {
  border-top: 1px solid var(--kb-border);
}
.md-footer-meta.md-typeset a,
.md-copyright a {
  color: var(--kb-link);
}
.md-footer-meta.md-typeset a:hover {
  color: var(--kb-link-hover);
}
.md-copyright {
  color: var(--kb-text-muted);
}
.md-social__link svg {
  fill: var(--kb-text-muted);
}
.md-social__link:hover svg {
  fill: var(--kb-link-hover);
}

.md-top {
  background-color: var(--kb-bg-card);
  color: var(--kb-text-nav);
  border: 1px solid var(--kb-border);
  box-shadow: 0 6px 20px var(--kb-shadow-card);
}
.md-top:hover {
  background-color: var(--kb-button-hover-bg);
  color: var(--kb-button-hover-color);
}

/* ============================================================
   Buttons + cookie banner — main site's quiet pill buttons
   ============================================================ */
.md-typeset .md-button {
  padding: 0.45em 1.3em;
  border: 1px solid var(--kb-border);
  border-radius: 999px;
  background-color: var(--kb-bg-button);
  color: var(--kb-text-primary);
  font-weight: 600;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.md-typeset .md-button:hover,
.md-typeset .md-button:focus,
.md-typeset .md-button--primary {
  border-color: var(--kb-button-hover-bg);
  background-color: var(--kb-button-hover-bg);
  color: var(--kb-button-hover-color);
  text-decoration: none;
}
.md-consent__overlay {
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  background-color: rgba(0, 0, 0, 0.35);
}
.md-consent__inner {
  background-color: var(--kb-bg-card);
  border-top: 1px solid var(--kb-border);
  box-shadow: 0 -6px 24px var(--kb-shadow-card);
}
.md-consent__inner h4 {
  color: var(--kb-text-primary);
  font-weight: 600;
}
.md-consent__inner p {
  color: var(--kb-text-body);
}