/* Effective Coding Agents - Book Styles */

/* Typography */
body {
  font-size: 1.05rem;
  line-height: 1.75;
}

/* Title page */
.book-landing-page > h1.unnumbered {
  display: none;
}

.book-title-page {
  max-width: 760px;
  margin: 0 auto;
  padding-top: 2.5rem;
  padding-bottom: 2rem;
}

.book-title-page h1 {
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 1.05;
  margin-bottom: 0.75rem;
}

.book-title-page blockquote {
  border-left: none;
  padding-left: 0;
  margin: 0 0 1.75rem 0;
  color: #4b5563;
  font-size: 1.2rem;
}

.book-title-page .book-cover-image {
  display: block;
  max-width: min(360px, 72%);
  margin: 1.5rem auto 2rem auto;
  border-radius: 14px;
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.18);
}

.book-title-page hr {
  margin: 1.6rem 0;
}

.book-contents {
  margin: 1.8rem 0 2rem 0;
  padding: 1.15rem 1.25rem;
  background: linear-gradient(180deg, #fbfdff 0%, #f3f7fb 100%);
  border: 1px solid #d7e2ee;
  border-radius: 14px;
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.06);
}

.book-contents ul {
  margin-bottom: 0;
}

.book-contents li + li {
  margin-top: 0.2rem;
}

.book-contents li > ul {
  margin-top: 0.3rem;
}

#quarto-margin-sidebar .index-toc-link {
  font-size: 0.825rem;
  font-weight: 400;
  line-height: 1.45;
}

/* Right-side share icons */
.book-share-sidebar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  margin: 0 0 0.85rem 0;
  padding: 0 0 0.85rem 0;
  border-bottom: 1px solid #e2e8f0;
}

.book-share-sidebar .book-share-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border: none;
  border-radius: 999px;
  background: #f8fafc;
  color: #475569;
  text-decoration: none;
  transition: background-color 120ms ease, color 120ms ease, transform 120ms ease;
}

.book-share-sidebar .book-share-icon:hover,
.book-share-sidebar .book-share-icon:focus {
  background: #e2e8f0;
  color: #0f172a;
  transform: translateY(-1px);
}

.book-share-sidebar .book-share-icon[data-platform="x"]:hover,
.book-share-sidebar .book-share-icon[data-platform="x"]:focus {
  color: #111827;
}

.book-share-sidebar .book-share-icon[data-platform="facebook"]:hover,
.book-share-sidebar .book-share-icon[data-platform="facebook"]:focus {
  color: #1877f2;
}

.book-share-sidebar .book-share-icon[data-platform="reddit"]:hover,
.book-share-sidebar .book-share-icon[data-platform="reddit"]:focus {
  color: #ff4500;
}

.book-share-sidebar .book-share-icon[data-platform="instagram"]:hover,
.book-share-sidebar .book-share-icon[data-platform="instagram"]:focus {
  color: #d62976;
}

.book-share-sidebar .book-share-icon[data-platform="linkedin"]:hover,
.book-share-sidebar .book-share-icon[data-platform="linkedin"]:focus {
  color: #0a66c2;
}

.book-share-sidebar .book-narration-launcher {
  border: none;
}

.book-share-sidebar .book-narration-launcher[aria-expanded="true"] {
  background: #dbeafe;
  color: #1d4ed8;
}

.book-share-sidebar .book-share-note {
  flex-basis: 100%;
  min-height: 1rem;
  margin: 0.2rem 0 0 0;
  color: #64748b;
  font-size: 0.75rem;
}

#quarto-margin-sidebar .book-share-sidebar {
  margin-top: 0;
}

/* Browser-native narration controls */
.book-narration {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  margin: 0 0 0.85rem 0;
  padding: 0 0 0.85rem 0;
  border-bottom: 1px solid #e2e8f0;
}

.book-narration--collapsed {
  display: none;
}

.book-narration__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.book-narration__title {
  color: #334155;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.book-narration__controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.book-narration button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 1.85rem;
  padding: 0.25rem 0.55rem;
  border: 1px solid #cbd5e1;
  border-radius: 999px;
  background: #f8fafc;
  color: #334155;
  font-size: 0.76rem;
  font-weight: 650;
  line-height: 1;
}

.book-narration button:hover,
.book-narration button:focus {
  background: #e2e8f0;
  color: #0f172a;
}

.book-narration button:disabled,
.book-narration select:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.book-narration__selects {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.35rem;
}

.book-narration select {
  width: 100%;
  min-height: 1.85rem;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  background: #fff;
  color: #334155;
  font-size: 0.75rem;
  padding: 0.25rem 0.45rem;
}

.book-narration__status {
  min-height: 1rem;
  margin: 0;
  color: #64748b;
  font-size: 0.72rem;
  line-height: 1.35;
}

.book-narration__active {
  background: linear-gradient(180deg, rgba(255, 248, 214, 0.88), rgba(255, 242, 184, 0.74));
  border-radius: 8px;
  box-shadow: 0 0 0 4px rgba(250, 204, 21, 0.18);
  transition: background-color 120ms ease, box-shadow 120ms ease;
}

/* Citations */
a[href^="#"]:not(.book-share-icon) {
  text-decoration: none;
  color: #2563eb;
  font-size: 0.85em;
}
a[href^="#"]:not(.book-share-icon):hover,
a[href*="sources.html#"]:not(.book-share-icon):hover,
a[href*="sources.qmd#"]:not(.book-share-icon):hover {
  text-decoration: underline;
}
a[href*="sources.html#"]:not(.book-share-icon),
a[href*="sources.qmd#"]:not(.book-share-icon) {
  text-decoration: none;
  color: #2563eb;
  font-size: 0.85em;
}

/* Chapter epigraphs (italicized first paragraph) */
.chapter-body > p:first-of-type em {
  display: block;
  font-size: 1.1em;
  border-left: 3px solid #6b7280;
  padding-left: 1em;
  margin-bottom: 1.5em;
  color: #4b5563;
}

/* Source list */
#sources + ul li,
.sources ul li {
  font-size: 0.9em;
  margin-bottom: 0.3em;
}

/* Plain-text code blocks (examples, session anchors) */
pre.text {
  background-color: #f8f9fa;
  border: 1px solid #dee2e6;
  border-radius: 6px;
  padding: 1em 1.25em;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.88em;
  line-height: 1.6;
  overflow-x: auto;
  margin: 1em 0;
}

/* Chapter takeaways */
.chapter-takeaways {
  margin: 1.4rem 0 1.1rem 0;
  padding: 1rem 1.15rem 0.95rem 1.15rem;
  background: linear-gradient(180deg, #f7faff 0%, #edf4ff 100%);
  border: 1px solid #ccdaee;
  border-left: 4px solid #3b6ecb;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.08);
}

.chapter-takeaways h3 {
  margin-top: 0;
  margin-bottom: 0.55rem;
  color: #183a78;
  font-size: 1rem;
  letter-spacing: 0.01em;
}

.chapter-takeaways ul {
  margin-bottom: 0;
}

.chapter-takeaways li + li {
  margin-top: 0.45rem;
}

/* Part dividers */
.quarto-book .sidebar-item-section {
  font-weight: 600;
  margin-top: 0.5em;
}