/*
 * SPDX-License-Identifier: FSL-1.1-ALv2
 * SPDX-FileCopyrightText: 2026 Woodfine Capital Projects Inc.
 */

/* ============================================================================
   app-mediakit-knowledge · Article body · content stylesheet
   ----------------------------------------------------------------------------
   The reading surface: article title, ruled section headings, prose typography,
   Wikipedia-style tables ("wikitable"), code blocks with a copy button, inline
   code, blockquotes, lists, figures. Namespace: k-*. Depends on tokens.css.
   Structure emitted by the render pipeline (comrak): plain <table>, <pre><code
   class="language-…">, <h2>/<h3>, <blockquote>, <ul>/<ol>, inline <code>.
   ========================================================================== */

/* --- Article shell -------------------------------------------------------- */
.k-article {
  padding-block: var(--k-space-4) var(--k-space-7);
}

/* --- Article action tabs (Vector 2022 heading nav) ------------------------ */
.k-article-nav {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--k-space-1) var(--k-space-4);
  border-bottom: 1px solid var(--k-border);
  margin-bottom: var(--k-space-5);
}
.k-tabs { display: flex; gap: var(--k-space-1); }
.k-tab {
  display: inline-block;
  padding: var(--k-space-2) var(--k-space-3);
  margin-bottom: -1px;                       /* sit on the nav's bottom border */
  font-family: var(--k-font-sans);
  font-size: var(--k-text-sm);
  color: var(--k-ink-secondary);
  border-bottom: 2px solid transparent;
}
.k-tab--active {
  color: var(--k-ink);
  font-weight: var(--k-weight-medium);
  border-bottom-color: var(--k-accent);
}
.k-tab--soon { color: var(--k-ink-muted); opacity: 0.55; cursor: default; }
.k-article__meta {
  margin: 0;
  padding-bottom: var(--k-space-2);
  font-family: var(--k-font-sans);
  font-size: var(--k-text-sm);
  color: var(--k-ink-muted);
}
.k-article__sha { font-family: var(--k-font-mono, monospace); font-size: 0.9em; }
.k-article__lang { font-family: var(--k-font-sans); }

/* Point-in-time "as-of" banner (historical revision) */
.k-asof {
  margin: 0 0 var(--k-space-5);
  padding: var(--k-space-3) var(--k-space-4);
  border: 1px solid var(--k-border);
  border-left: 3px solid var(--k-accent);
  border-radius: var(--k-radius-md);
  background: var(--k-surface-sunken);
  font-family: var(--k-font-sans);
  font-size: var(--k-text-sm);
  color: var(--k-ink-secondary);
}
.k-asof strong { color: var(--k-ink); }
.k-diff__asof {
  margin: var(--k-space-2) 0 0;
  font-family: var(--k-font-sans);
  font-size: var(--k-text-sm);
}

.k-article__title {
  font-family: var(--k-title-font);
  font-size: var(--k-title-fs);
  font-weight: var(--k-weight-bold);
  line-height: var(--k-leading-tight);
  letter-spacing: -0.015em;
  color: var(--k-ink);
  margin: 0 0 var(--k-space-4);
  padding-bottom: var(--k-space-3);
  border-bottom: 1px solid var(--k-heading-rule);
}

/* --- Prose column --------------------------------------------------------- */
/* Fills the content column (Wikipedia-style full width). A measure is applied
   only to running paragraphs for readability, not to tables/code/figures. */
.k-prose {
  font-family: var(--k-prose-font);
  font-size: var(--k-prose-fs);
  line-height: var(--k-prose-leading);
  color: var(--k-prose-ink);
}
/* Vertical rhythm — direct children carry the paragraph gap. Reset first so a
   later same-specificity rule can re-add the top gap (do NOT use `.k-prose p
   { margin: 0 }`, which out-specifies this and kills the spacing). */
.k-prose > * { margin-top: 0; margin-bottom: 0; }
.k-prose > * + * { margin-top: var(--k-prose-gap); }

/* Fill the content column left-to-right (Wikipedia-style) — no narrow measure. */

/* Section headings — Wikipedia rules the h2 with a hairline underline. */
.k-prose h2 {
  font-family: var(--k-title-font);
  font-size: var(--k-h2-fs);
  font-weight: var(--k-weight-semibold);
  line-height: var(--k-leading-snug);
  color: var(--k-ink);
  margin: 1.8em 0 0.6em;
  padding-bottom: 0.25em;
  border-bottom: 1px solid var(--k-heading-rule);
  scroll-margin-top: calc(var(--k-header-height) + var(--k-space-4));
}
.k-prose h3 {
  font-family: var(--k-title-font);
  font-size: var(--k-h3-fs);
  font-weight: var(--k-weight-semibold);
  color: var(--k-ink);
  margin: 1.5em 0 0.5em;
  scroll-margin-top: calc(var(--k-header-height) + var(--k-space-4));
}
.k-prose h4 {
  font-family: var(--k-title-font);
  font-size: 1.05rem;
  font-weight: var(--k-weight-semibold);
  margin: 1.3em 0 0.4em;
}

/* Links */
.k-prose a { color: var(--k-link); text-underline-offset: 0.15em; }
.k-prose a:hover { color: var(--k-link-hover); text-decoration: underline; }
.k-prose a:visited { color: var(--k-link-visited); }
.k-prose a:focus-visible {
  outline: var(--k-focus-outline); outline-offset: 2px; border-radius: var(--k-radius-xs);
}

/* Emphasis */
.k-prose strong { font-weight: var(--k-weight-bold); color: var(--k-ink); }

/* --- References (footnotes synthesized from `references:` frontmatter) ------ */
.k-prose .footnotes {
  margin-top: var(--k-space-7);
  padding-top: var(--k-space-4);
  border-top: 1px solid var(--k-heading-rule);
  font-size: var(--k-text-sm);
  color: var(--k-ink-secondary);
}
.k-prose .footnotes::before {
  content: "References";
  display: block;
  font-family: var(--k-title-font);
  font-size: var(--k-text-lg);
  font-weight: var(--k-weight-bold);
  color: var(--k-ink);
  margin-bottom: var(--k-space-3);
}
.k-prose .footnotes ol { margin: 0; padding-left: var(--k-space-5); }
.k-prose .footnotes li { margin-bottom: var(--k-space-2); }
.k-prose em { font-style: italic; }

/* Lists */
.k-prose ul, .k-prose ol { padding-left: 1.5em; }
.k-prose ul { list-style: disc; }
.k-prose ol { list-style: decimal; }
.k-prose li { margin-top: 0.35em; }
.k-prose li > ul, .k-prose li > ol { margin-top: 0.35em; }

/* Blockquote */
.k-prose blockquote {
  margin: var(--k-prose-gap) 0;
  padding: 0.4em 0 0.4em 1.1em;
  border-left: 3px solid var(--k-quote-rule);
  color: var(--k-quote-ink);
  font-style: italic;
}
.k-prose blockquote p { margin: 0; }

/* Horizontal rule */
.k-prose hr {
  border: 0;
  border-top: 1px solid var(--k-border-subtle);
  margin: var(--k-space-6) 0;
}

/* Figures / images */
.k-prose img { max-width: 100%; height: auto; border-radius: var(--k-radius-sm); }
.k-prose figure { margin: var(--k-space-5) 0; }
.k-prose figcaption {
  margin-top: var(--k-space-2);
  font-size: var(--k-text-sm);
  color: var(--k-ink-muted);
}

/* --- Tables (wikitable register) ------------------------------------------ */
/* Wrapper added by JS for horizontal scroll on narrow viewports. */
.k-table-wrap { overflow-x: auto; margin: var(--k-space-5) 0; }
.k-prose table {
  border-collapse: collapse;
  width: auto;
  max-width: 100%;
  font-size: var(--k-table-fs);
  line-height: var(--k-leading-snug);
  background: var(--k-surface);
}
.k-prose th, .k-prose td {
  border: 1px solid var(--k-table-border);
  padding: var(--k-table-cell-pad);
  text-align: left;
  vertical-align: top;
}
.k-prose thead th, .k-prose th {
  background: var(--k-table-head-bg);
  color: var(--k-table-head-ink);
  font-weight: var(--k-weight-semibold);
}
.k-prose tbody tr:nth-child(even) { background: var(--k-table-stripe); }

/* --- Inline code ---------------------------------------------------------- */
.k-prose :not(pre) > code {
  font-family: var(--k-code-font);
  font-size: var(--k-code-fs);
  background: var(--k-code-inline-bg);
  color: var(--k-code-inline-ink);
  padding: 0.12em 0.36em;
  border-radius: var(--k-radius-xs);
  word-break: break-word;
}

/* --- Code blocks + copy button -------------------------------------------- */
/* JS wraps each <pre> in .k-codeblock and adds the copy button. Absent JS the
   <pre> still styles correctly (progressive enhancement). */
.k-codeblock { position: relative; width: 100%; margin: var(--k-space-5) 0; }
.k-prose pre {
  display: block;
  width: 100%;                       /* full left-to-right, like Google Docs   */
  box-sizing: border-box;
  margin: var(--k-space-5) 0;
  padding: var(--k-space-4);
  background: var(--k-code-block-bg);
  color: var(--k-code-block-ink);
  border: 1px solid var(--k-code-border);
  border-radius: var(--k-code-radius);
  overflow-x: auto;
  line-height: 1.55;
  -webkit-overflow-scrolling: touch;
}
.k-codeblock > pre { margin: 0; }
.k-prose pre code {
  font-family: var(--k-code-font);
  font-size: var(--k-code-fs);
  background: none;
  color: inherit;
  padding: 0;
  border: 0;
  white-space: pre;
}

.k-codeblock__copy {
  position: absolute;
  top: var(--k-space-2);
  right: var(--k-space-2);
  display: inline-flex;
  align-items: center;
  gap: 0.3em;
  padding: 0.25em 0.6em;
  font-family: var(--k-font-sans);
  font-size: var(--k-text-xs);
  font-weight: var(--k-weight-medium);
  /* Panel-relative so it reads on both the light and dark code background. */
  color: var(--k-code-block-ink);
  background: color-mix(in srgb, var(--k-code-block-ink) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--k-code-block-ink) 24%, transparent);
  border-radius: var(--k-radius-sm);
  cursor: pointer;
  opacity: 1;                          /* always visible */
  transition: color var(--k-motion-fast) var(--k-ease),
              background var(--k-motion-fast) var(--k-ease),
              border-color var(--k-motion-fast) var(--k-ease);
}
.k-codeblock__copy:hover {
  color: var(--k-code-block-bg);
  background: var(--k-code-block-ink);
  border-color: var(--k-code-block-ink);
}
.k-codeblock__copy:focus-visible {
  outline: var(--k-focus-outline); outline-offset: 2px;
}
.k-codeblock__copy.is-copied { color: #1a7f37; border-color: #1a7f37; }

/* --- Responsive ----------------------------------------------------------- */
@media (max-width: 768px) {
  .k-article__title { font-size: 1.7rem; }
  .k-prose { font-size: 1rem; }
  .k-prose h2 { font-size: 1.3rem; }
  .k-prose h3 { font-size: 1.1rem; }
}

/* ========================================================================== */
/* Home (Main Page) + category listing                                        */
/* ========================================================================== */
.k-home, .k-catpage { padding-block: var(--k-space-5) var(--k-space-7); }

.k-home__lede { max-width: var(--k-prose-measure); margin-bottom: var(--k-space-5); }

.k-home__stat {
  color: var(--k-ink-muted);
  font-family: var(--k-font-sans);
  font-size: var(--k-text-sm);
  margin-bottom: var(--k-space-5);
}
.k-home__stat strong { color: var(--k-ink-secondary); font-weight: var(--k-weight-semibold); }

.k-home__browse-title {
  font-family: var(--k-title-font);
  font-size: var(--k-h2-fs);
  font-weight: var(--k-weight-semibold);
  color: var(--k-ink);
  margin: 0 0 var(--k-space-4);
  padding-bottom: 0.25em;
  border-bottom: 1px solid var(--k-heading-rule);
}
.k-home__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 15rem), 1fr));
  gap: var(--k-space-4);
}
.k-cat-card {
  display: flex;
  flex-direction: column;
  gap: var(--k-space-1);
  padding: var(--k-space-4);
  border: 1px solid var(--k-border-light);
  border-radius: var(--k-radius-md);
  background: var(--k-surface);
  border-left: 3px solid var(--k-accent);
  transition: border-color var(--k-motion-fast) var(--k-ease),
              box-shadow var(--k-motion-fast) var(--k-ease);
}
.k-cat-card:hover {
  text-decoration: none;
  border-color: var(--k-border);
  border-left-color: var(--k-accent);
  box-shadow: var(--k-shadow-sm);
}
.k-cat-card:focus-visible { outline: var(--k-focus-outline); outline-offset: 2px; }
.k-cat-card__name {
  font-family: var(--k-font-sans);
  font-size: var(--k-text-md);
  font-weight: var(--k-weight-semibold);
  color: var(--k-ink);
}
.k-cat-card__count {
  font-family: var(--k-font-sans);
  font-size: var(--k-text-xs);
  color: var(--k-ink-muted);
}

/* How-to guides section */
.k-home__guides { margin-top: var(--k-space-7); }
.k-home__guides-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--k-space-4);
  flex-wrap: wrap;
  margin: 0 0 var(--k-space-4);
  padding-bottom: 0.25em;
  border-bottom: 1px solid var(--k-heading-rule);
}
.k-home__guides-head .k-home__browse-title { margin: 0; padding: 0; border: 0; }
.k-home__browse-all {
  font-family: var(--k-font-sans);
  font-size: var(--k-text-sm);
  font-weight: var(--k-weight-medium);
  white-space: nowrap;
}
.k-home__guides-lede {
  max-width: var(--k-prose-measure);
  margin: 0 0 var(--k-space-4);
  color: var(--k-ink-secondary);
  font-size: var(--k-text-base);
}
.k-guide-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 24rem), 1fr));
  gap: var(--k-space-5);
}
.k-guide-card__title {
  display: flex;
  align-items: baseline;
  gap: var(--k-space-2);
  font-family: var(--k-font-sans);
  font-size: var(--k-text-md);
  font-weight: var(--k-weight-medium);
}
.k-guide-list__icon { color: var(--k-accent); flex-shrink: 0; display: inline-flex; transform: translateY(0.1em); }
.k-guide-card__desc {
  margin: var(--k-space-1) 0 0 1.45em;   /* align under the title text, past the icon */
  color: var(--k-ink-muted);
  font-size: var(--k-text-sm);
  line-height: var(--k-leading-snug);
}

/* Category listing page */
.k-catpage__eyebrow {
  font-family: var(--k-font-sans);
  font-size: var(--k-text-2xs);
  font-weight: var(--k-weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--k-tracking-caps);
  color: var(--k-accent);
  margin-bottom: var(--k-space-1);
}

/* --- Search page ---------------------------------------------------------- */
/* No on-page search form — the header search bar carries the query (it echoes
   `value=(query)` on the results page). Only the hint/empty-state styling here. */
.k-searchpage__hint {
  margin-top: var(--k-space-4);
  color: var(--k-ink-muted);
  font-size: var(--k-text-md);
}

/* --- Revision history (History tab) --------------------------------------- */
.k-history__note {
  margin: var(--k-space-2) 0 var(--k-space-4);
  font-family: var(--k-font-sans);
  font-size: var(--k-text-sm);
  color: var(--k-ink-muted);
}
.k-history { list-style: none; margin: var(--k-space-5) 0 0; padding: 0; }
.k-history__item {
  display: grid;
  grid-template-columns: 7rem 1fr;
  gap: var(--k-space-1) var(--k-space-4);
  align-items: baseline;
  padding: var(--k-space-3) 0;
  border-bottom: 1px solid var(--k-border-subtle);
}
.k-history__date {
  font-family: var(--k-font-sans);
  font-size: var(--k-text-sm);
  color: var(--k-ink-muted);
  white-space: nowrap;
}
.k-history__msg {
  font-family: var(--k-font-sans);
  font-size: var(--k-text-md);
  color: var(--k-ink);
}
.k-history__meta {
  grid-column: 2;
  font-family: var(--k-font-sans);
  font-size: var(--k-text-xs);
  color: var(--k-ink-muted);
}
.k-history__sha { font-family: var(--k-font-mono, monospace); font-size: 0.9em; }
.k-history__msg {
  font-family: var(--k-font-sans);
  font-size: var(--k-text-md);
  color: var(--k-accent);
}
.k-history__msg:hover { text-decoration: underline; }
@media (max-width: 640px) {
  .k-history__item { grid-template-columns: 1fr; }
  .k-history__meta { grid-column: 1; }
}

/* --- Diff view ------------------------------------------------------------ */
.k-diff__head { margin: var(--k-space-5) 0 var(--k-space-4); }
.k-diff__back { font-family: var(--k-font-sans); font-size: var(--k-text-sm); }
.k-diff__meta {
  margin: var(--k-space-3) 0 var(--k-space-1);
  font-family: var(--k-font-sans);
  font-size: var(--k-text-sm);
  color: var(--k-ink-muted);
}
.k-diff__msg { margin: 0; font-family: var(--k-font-sans); font-size: var(--k-text-md); color: var(--k-ink); }
.k-diff {
  margin: 0;
  padding: var(--k-space-3) 0;
  overflow-x: auto;
  font-family: var(--k-font-mono, monospace);
  font-size: var(--k-text-sm);
  line-height: 1.5;
  background: var(--k-surface);
  border: 1px solid var(--k-border-subtle);
  border-radius: var(--k-radius-md);
}
.k-diff__line { display: block; padding: 0 var(--k-space-3); white-space: pre; }
.k-diff__line--add { background: color-mix(in srgb, #22a06b 16%, transparent); }
.k-diff__line--del { background: color-mix(in srgb, #d1242f 14%, transparent); }
.k-diff__line--hunk { color: var(--k-ink-muted); background: var(--k-surface-sunken); }

.k-cat-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 30rem), 1fr));
  gap: var(--k-space-5) var(--k-gutter-lg);
  margin-top: var(--k-space-5);
}
.k-cat-entry {
  padding-bottom: var(--k-space-4);
  border-bottom: 1px solid var(--k-border-subtle);
}
.k-cat-entry__title {
  font-family: var(--k-font-sans);
  font-size: var(--k-text-md);
  font-weight: var(--k-weight-medium);
}
.k-cat-entry__desc {
  margin: var(--k-space-2) 0 0;
  color: var(--k-ink-muted);
  font-size: var(--k-text-sm);
  line-height: var(--k-leading-snug);
}

/* --- Section permalink anchors -------------------------------------------- */
/* comrak emits an empty <a class="anchor" id="…"> at the start of each heading. */
.k-prose h2, .k-prose h3, .k-prose h4 { position: relative; }
.k-prose .anchor {
  scroll-margin-top: calc(var(--k-header-height) + var(--k-space-5));
  text-decoration: none;
}
.k-prose :is(h2, h3, h4) .anchor::before {
  content: "\00a7";                    /* § — section mark, records register */
  position: absolute;
  left: -0.9em;
  color: var(--k-border);
  opacity: 0;
  font-weight: var(--k-weight-regular);
  transition: opacity var(--k-motion-fast) var(--k-ease);
}
.k-prose :is(h2, h3, h4):hover .anchor::before,
.k-prose .anchor:focus-visible::before { opacity: 1; color: var(--k-accent); }

/* --- External links get an outward mark ----------------------------------- */
.k-prose a[href^="http://"]::after,
.k-prose a[href^="https://"]::after {
  content: "\2197";                    /* ↗ */
  display: inline-block;
  font-size: 0.78em;
  margin-left: 0.1em;
  color: var(--k-ink-muted);
  vertical-align: text-top;
  text-decoration: none;
}

/* --- Print ---------------------------------------------------------------- */
@media print {
  .k-codeblock__copy { display: none !important; }
  .k-prose pre { border: 1px solid #999; }
  .k-prose { max-width: none; }
  .k-prose .anchor::before { display: none; }
}