/* Reading family — articles, learning content shared shell and prose system */

.reading-family-page {
  color: var(--reading-body-text);
  background: var(--reading-ambient-page), var(--reading-bg-page);
  line-height: 1.7;
}

.reading-family-page::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: var(--reading-ambient-overlay);
}

.reading-family-page .home-header {
  position: sticky;
  top: 0;
  z-index: 50;
  width: 100%;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--reading-nav-border);
  background: var(--reading-nav-bg);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
}

.reading-family-page .nav-links a,
.reading-family-page .btn,
.reading-family-page .back-btn,
.reading-family-page .copy-btn,
.reading-family-page .toc-toggle,
.reading-family-page .series-prev,
.reading-family-page .series-next {
  min-height: 44px;
}

.reading-family-page .theme-toggle,
.reading-family-page .nav-toggle,
.reading-family-page .site-footer .footer-social a {
  width: 44px;
  height: 44px;
}

.reading-family-page a:focus-visible,
.reading-family-page button:focus-visible,
.reading-family-page .related-card:focus-visible,
.reading-family-page .series-prev:focus-visible,
.reading-family-page .series-next:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
}

/* Prose rhythm */
.reading-family-page .article-content,
.reading-family-page .learning-page .section,
.reading-family-page .article-body {
  max-width: var(--reading-content-max);
  font-size: 1rem;
}

.reading-family-page .article-content p,
.reading-family-page .learning-page .section p,
.reading-family-page .article-body p {
  margin: 0 0 var(--reading-paragraph-gap);
}

.reading-family-page .article-content h2,
.reading-family-page .learning-page .section h2 {
  margin: var(--reading-h2-gap-before) 0 var(--reading-h2-gap-after);
  color: var(--color-heading);
  scroll-margin-top: 5rem;
  text-wrap: balance;
}

.reading-family-page .article-content h3,
.reading-family-page .learning-page .section h3 {
  margin: var(--reading-h3-gap-before) 0 var(--reading-h3-gap-after);
  color: var(--reading-h3-color);
}

.reading-family-page .article-content strong,
.reading-family-page .article-content b,
.reading-family-page .learning-page .section strong {
  color: var(--reading-strong-color);
}

.reading-family-page .article-content a:not(.btn):not(.back-btn):not(.related-card),
.reading-family-page .learning-page .section a:not(.btn) {
  color: var(--reading-link-color);
}

.reading-family-page .article-content ul,
.reading-family-page .learning-page .section ul {
  margin: 0 0 var(--reading-paragraph-gap);
  padding-left: 0;
  list-style: none;
}

.reading-family-page .article-content li,
.reading-family-page .learning-page .section li {
  margin: var(--reading-list-gap) 0;
  padding-left: 1.5rem;
  position: relative;
}

.reading-family-page .article-content li::before,
.reading-family-page .learning-page .section li::before {
  content: "";
  position: absolute;
  top: 0.72em;
  left: 3px;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--reading-heading-accent);
  box-shadow: 0 0 0 4px var(--color-primary-muted);
}

.reading-family-page figcaption,
.reading-family-page .figure-caption,
.reading-family-page .article-content .caption {
  margin-top: 0.6rem;
  font-size: 0.92rem;
  color: var(--reading-figure-caption);
  text-align: center;
  font-style: italic;
}

/* Callouts — align with shared alert language */
.reading-family-page .note,
.reading-family-page .callout,
.reading-family-page .learning-page .note {
  margin: var(--space-5) 0;
  padding: var(--space-4) var(--space-5);
  border: 1px solid var(--reading-border-strong);
  border-left: 4px solid var(--reading-callout-border);
  border-radius: var(--radius-medium);
  background: var(--reading-callout-bg);
  box-shadow: var(--shadow-small);
  font-size: 0.95rem;
  line-height: 1.6;
}

.reading-family-page .warning,
.reading-family-page .callout-warning {
  border-left-color: var(--reading-callout-warning-border);
  background: var(--reading-callout-warning-bg);
}

.reading-family-page blockquote {
  margin: var(--space-5) 0;
  padding: var(--space-4) var(--space-5);
  border-left: 4px solid var(--reading-blockquote-border);
  border-radius: 0 var(--radius-medium) var(--radius-medium) 0;
  background: var(--reading-blockquote-bg);
  color: var(--reading-body-text);
}

/* Code — always dark terminal (theme.css reinforces pre/hljs) */
.reading-family-page pre,
.reading-family-page .code-box,
.reading-family-page .cheat-sheet {
  position: relative;
  margin: var(--space-5) 0;
  padding: var(--space-5);
  overflow-x: auto;
  border: 1px solid var(--reading-code-block-border);
  border-radius: var(--radius-medium);
  background: var(--reading-code-block-wash), var(--reading-code-block-bg);
  color: var(--reading-code-block-text);
  box-shadow: var(--shadow-inset);
  -webkit-overflow-scrolling: touch;
}

.reading-family-page pre::before {
  content: "terminal";
  display: block;
  margin-bottom: var(--space-2);
  color: var(--reading-code-block-label);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.reading-family-page pre code,
.reading-family-page .code-box pre,
.reading-family-page .cheat-body pre {
  display: block;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  font-family: "JetBrains Mono", "Cascadia Mono", ui-monospace, monospace;
  font-size: 0.9rem;
  line-height: 1.55;
  white-space: pre;
}

.reading-family-page :not(pre) > code,
.reading-family-page .article-content code:not(pre code) {
  padding: 0.15em 0.4em;
  border-radius: var(--radius-small);
  background: var(--reading-inline-code-bg);
  color: var(--reading-inline-code-text);
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.88em;
}

.reading-family-page .copy-btn {
  min-height: 36px;
  padding: 6px 12px;
  border: 1px solid var(--reading-border-strong);
  border-radius: var(--radius-small);
  background: var(--color-primary-muted);
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}

.reading-family-page .copy-btn:hover {
  background: var(--color-surface-hover);
}

/* Tables — soft docs-style surfaces */
.reading-family-page table,
.reading-family-page .table {
  width: 100%;
  margin: var(--space-5) 0;
  border: 1px solid var(--reading-table-border);
  border-collapse: separate;
  border-spacing: 0;
  border-radius: var(--radius-medium);
  background: var(--reading-table-bg);
  overflow: hidden;
}

.reading-family-page .table-wrap {
  margin: var(--space-5) 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-medium);
}

.reading-family-page .table-wrap table {
  margin: 0;
  min-width: 32rem;
}

.reading-family-page th,
.reading-family-page td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--reading-table-border);
  text-align: left;
  vertical-align: top;
}

.reading-family-page th {
  color: var(--reading-table-header-text);
  background: var(--reading-table-header-bg);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.reading-family-page tr:last-child td {
  border-bottom: 0;
}

/* TOC */
.reading-family-page aside.toc,
.reading-family-page .toc-panel {
  border: 1px solid var(--reading-toc-border);
  border-radius: var(--radius-large);
  background: var(--reading-toc-bg);
  box-shadow: var(--shadow-small), var(--shadow-inset);
}

.reading-family-page aside.toc a,
.reading-family-page .toc a {
  color: var(--reading-toc-link);
}

.reading-family-page aside.toc a.active,
.reading-family-page aside.toc a[aria-current="true"] {
  color: var(--reading-toc-link-active);
  font-weight: 700;
}

.reading-family-page .toc-toggle {
  width: 100%;
  justify-content: space-between;
  padding: 12px 14px;
  border: 1px solid var(--reading-toc-border);
  border-radius: var(--radius-medium);
  background: var(--reading-toc-bg);
  color: var(--color-heading);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}

/* Reading progress */
.reading-family-page .reading-progress {
  background: var(--reading-progress-track);
}

.reading-family-page .reading-progress-bar {
  background: var(--gradient-brand);
  box-shadow: 0 0 8px var(--color-primary-muted);
}

@media (forced-colors: active) {
  .reading-family-page .article-title,
  .reading-family-page .topic-title,
  .reading-family-page .article-content h2 {
    color: CanvasText;
    background: none;
    -webkit-text-fill-color: CanvasText;
  }
}

@media (prefers-reduced-motion: reduce) {
  html:has(body.reading-family-page) {
    scroll-behavior: auto;
  }

  .reading-family-page .reading-progress-bar {
    transition: none;
  }
}