/*
 * Harbour Library (LIN-3344, Part A of LIN-3342).
 *
 * One calm reading column, built on the existing Phase-0 tokens so it inherits
 * the light theme and the landing's dark remap with no new colour. No cards, no
 * counts, no interface chrome beyond the search field. Loaded after
 * `/style.css`; scoped under `.library` and `.library-doc` so it cannot leak
 * into the authenticated app.
 */

.library {
  max-width: 68ch;
  margin: 0 auto;
  padding: var(--space-4) var(--space-3) 0;
  color: var(--text);
  font-family: var(--font-content);
  line-height: 1.65;
}

/* A document page gets a wider frame; the text column stays 68ch below. */
.library--doc {
  max-width: 64rem;
}

.library-intro {
  color: var(--muted);
  margin: 0 0 var(--space-4);
}

/* Search ------------------------------------------------------------------ */

.library-search {
  display: flex;
  gap: var(--space-2);
  margin: 0 0 var(--space-5);
}

.library-search input[type='search'] {
  flex: 1;
  min-width: 0;
  padding: var(--space-2) var(--space-3);
  color: var(--text);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-family: var(--font-content);
  font-size: 1em;
}

.library-search input[type='search']:focus {
  outline: none;
  border-color: var(--brand);
}

.library-search button {
  padding: var(--space-2) var(--space-4);
  color: var(--bg);
  background: var(--brand);
  border: 1px solid var(--brand);
  border-radius: var(--radius-sm);
  font-family: var(--font-content);
  font-size: 1em;
  cursor: pointer;
}

/* Index sections ---------------------------------------------------------- */

.library-section {
  margin: 0 0 var(--space-5);
}

.library-section h2 {
  font-family: var(--font-structural);
  font-size: 0.9em;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--line-soft);
}

.library-start,
.library-list,
.library-results {
  list-style: none;
  margin: 0;
  padding: 0;
}

.library-start__item,
.library-item,
.library-result {
  margin: 0 0 var(--space-3);
}

.library-start__item a,
.library-item__link,
.library-result__link {
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
}

.library-start__item a:hover,
.library-item__link:hover,
.library-result__link:hover {
  color: var(--brand-dim);
  text-decoration: underline;
}

.library-start__note {
  display: block;
  color: var(--muted);
  font-size: 0.95em;
}

.library-item__summary,
.library-result__snippet {
  color: var(--muted);
  font-size: 0.95em;
  margin: var(--space-1) 0 0;
}

/* Derived per-entry cues: date · reading time · figure count (LIN-3350). */
.library-item__meta {
  color: var(--muted);
  font-family: var(--font-structural);
  font-size: 0.8em;
  margin: var(--space-1) 0 0;
}

.library-count,
.library-empty {
  color: var(--muted);
}

.library-results mark {
  background: var(--amber);
  color: var(--bg);
  border-radius: 2px;
  padding: 0 1px;
}

/* Document page ----------------------------------------------------------- */

/* A plain panel over the landing grid, so the grid stays in the gutters and
   never sits behind the text. `flow-root` contains the floated aside. */
.library-doc {
  background: var(--bg);
  display: flow-root;
  padding: var(--space-4);
  border-radius: var(--radius-md);
}

.library-doc__back {
  max-width: 68ch;
  margin: 0 0 var(--space-3);
  font-family: var(--font-structural);
  font-size: 0.85em;
}

.library-doc__back a {
  color: var(--muted);
  text-decoration: none;
}

.library-doc__back a:hover {
  color: var(--brand-dim);
  text-decoration: underline;
}

/* Further reading, floated right at desktop width; below 960px it falls back
   under the text (see the media query at the end of the file). */
.library-doc__aside {
  float: right;
  width: 15rem;
  margin: 0 0 var(--space-4) var(--space-4);
  padding: var(--space-3);
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  color: var(--muted);
  font-size: 0.9em;
}

.library-doc__aside p {
  margin: 0 0 var(--space-2);
}

.library-doc__aside p:last-child {
  margin-bottom: 0;
}

.library-doc__aside a {
  color: var(--brand-dim);
}

/* The reading column stays 68ch inside the wider panel. The cap is on the
   body's children, not the body itself, so a figure (below) can span the full
   panel width. */
.library-doc__header,
.library-doc__body > * {
  max-width: 68ch;
}

.library-doc__header {
  text-align: left;
  margin: 0 0 var(--space-5);
}

.library-doc__header h1 {
  font-family: var(--font-content);
  font-size: 2em;
  line-height: 1.25;
  margin: 0 0 var(--space-2);
}

.library-doc__byline {
  color: var(--muted);
  font-family: var(--font-structural);
  font-size: 0.85em;
  margin: 0;
}

.library-doc__body {
  font-size: 1.05em;
}

.library-doc__body h2,
.library-doc__body h3,
.library-doc__body h4 {
  font-family: var(--font-content);
  line-height: 1.3;
  margin: var(--space-5) 0 var(--space-2);
}

.library-doc__body h2 {
  font-size: 1.4em;
}

.library-doc__body h3 {
  font-size: 1.2em;
}

.library-doc__body p {
  margin: 0 0 var(--space-3);
}

.library-doc__body a {
  color: var(--brand-dim);
}

.library-doc__body img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: var(--space-4) auto;
}

/* LIN-3351: figures are <img> SVGs carrying their own prefers-color-scheme rule
   (scripts/lib/figure-theme.mjs). An <img> SVG follows the embedding element's
   color-scheme, so declare it per dark path: the theme=dark cookie
   (html.theme-dark) and the OS scheme on landing pages (body.is-landing).
   Scoped to Library figures, not app-wide. WebKit ignores it and keeps the
   light figure. */
.library-doc__body img {
  color-scheme: light;
}
.theme-dark .library-doc__body img {
  color-scheme: dark;
}
@media (prefers-color-scheme: dark) {
  body.is-landing .library-doc__body img {
    color-scheme: dark;
  }
}

/* Light-only figures (LIGHT_ONLY in scripts/lib/figure-theme.mjs): a caption names a
   colour the dark remap would falsify, so the SVG keeps its light rendering. Dim
   it so the white block sits softer on the dark panel. Scoped to that one image. */
.theme-dark .library-doc__body img[src$="/steady-base-menu/menu-size-vs-risk.svg"] {
  filter: brightness(0.85);
}
@media (prefers-color-scheme: dark) {
  body.is-landing .library-doc__body img[src$="/steady-base-menu/menu-size-vs-risk.svg"] {
    filter: brightness(0.85);
  }
}

/* A figure spans the full panel width and clears the floated aside, so a wide
   diagram drops below the further-reading panel instead of colliding with it. */
.library-doc__body p:has(> img) {
  max-width: none;
  clear: right;
}

.library-doc__body code {
  font-family: var(--font-structural);
  font-size: 0.9em;
  background: var(--card);
  padding: 0.1em 0.3em;
  border-radius: var(--radius-sm);
}

.library-doc__body pre {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  overflow-x: auto;
}

.library-doc__body pre code {
  background: none;
  padding: 0;
}

.library-doc__body blockquote {
  margin: var(--space-4) 0;
  padding: 0 var(--space-3);
  border-left: 3px solid var(--line);
  color: var(--muted);
}

.library-doc__body table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-4) 0;
  font-size: 0.95em;
}

.library-doc__body th,
.library-doc__body td {
  border: 1px solid var(--line);
  padding: var(--space-2) var(--space-3);
  text-align: left;
}

.library-doc__body hr {
  border: none;
  border-top: 1px solid var(--line);
  margin: var(--space-5) 0;
}

/* Below 960px the aside falls back under the text as a normal block. */
@media (max-width: 960px) {
  .library-doc {
    display: flex;
    flex-direction: column;
    padding: var(--space-4) var(--space-3);
  }

  .library-doc__aside {
    float: none;
    width: auto;
    order: 3;
    margin: var(--space-4) 0 0;
  }
}

@media (max-width: 640px) {
  .library {
    padding: var(--space-3) var(--space-2) 0;
  }

  .library-doc__header h1 {
    font-size: 1.6em;
  }
}