/* Reading Bookshelf Styles */
.reading-page {
  max-width: 76rem;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

/* Header */
.reading-header {
  margin: 1rem 0 2rem;
  max-width: 48rem;
}

.reading-title {
  margin: 0 0 0.5rem;
  font-size: clamp(2.2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.reading-description {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
  line-height: 1.6;
  color: var(--color-neutral-600, #475569);
}

:root[class~="dark"] .reading-description,
html.dark .reading-description,
body.dark .reading-description {
  color: var(--color-neutral-400, #94a3b8);
}

.reading-meta {
  margin: 0;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-neutral-500, #64748b);
}

/* Year quick-navigation */
.reading-years {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
  margin: 1.25rem 0 2.25rem;
}

.reading-years a {
  border: 1px solid color-mix(in srgb, currentColor 18%, transparent);
  border-radius: 999px;
  color: inherit;
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.3rem 0.75rem;
  text-decoration: none;
  transition: background 0.18s, color 0.18s, transform 0.18s;
}

.reading-years a:hover,
.reading-years a:focus-visible {
  background: var(--color-primary-600);
  border-color: var(--color-primary-600);
  color: #ffffff;
  outline: none;
  transform: translateY(-2px);
}

/* Year Shelf Section */
.reading-year {
  border-top: 1px solid color-mix(in srgb, currentColor 14%, transparent);
  scroll-margin-top: 5rem;
}

.reading-year details {
  padding: 0.2rem 0 1.75rem;
}

.reading-year summary {
  align-items: center;
  cursor: pointer;
  display: flex;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 700;
  justify-content: space-between;
  list-style: none;
  padding: 1rem 0;
}

.reading-year summary::-webkit-details-marker {
  display: none;
}

.reading-year summary::after {
  color: var(--color-primary-600);
  content: '+';
  font-size: 1.4rem;
  margin-left: 0.8rem;
  order: 3;
}

.reading-year details[open] summary::after {
  content: '−';
}

.reading-year-count {
  color: var(--color-neutral-500);
  font-size: 0.85rem;
  font-weight: 500;
  margin-left: auto;
}

/* Gallery Grid */
.book-gallery {
  display: grid;
  align-items: start;
  gap: 1.5rem 0.9rem;
  grid-template-columns: repeat(auto-fill, minmax(8.75rem, 1fr));
  padding: 0.65rem 0 0.4rem;
}

/* Book Card Button */
.reading-book {
  align-self: start;
  background: none;
  border: none;
  padding: 0;
  margin: 0;
  font: inherit;
  color: inherit;
  cursor: pointer;
  text-align: left;
  display: block;
  width: 100%;
  min-width: 0;
  text-decoration: none;
  transition: transform 0.24s ease;
}

.reading-book:hover,
.reading-book:focus-visible {
  outline: none;
  transform: translateY(-6px);
}

/* Cover Image Container */
.reading-cover {
  aspect-ratio: 2 / 3;
  background: linear-gradient(145deg, var(--color-primary-600), var(--color-secondary-500, #64748b));
  border-radius: 0.45rem;
  box-shadow: 0 0.35rem 0.85rem rgb(0 0 0 / 16%);
  overflow: hidden;
  position: relative;
}

.reading-cover::after {
  background: linear-gradient(110deg, transparent 38%, rgb(255 255 255 / 23%) 49%, transparent 60%);
  content: '';
  inset: 0;
  opacity: 0;
  position: absolute;
  transform: translateX(-110%);
  transition: transform 0.5s ease, opacity 0.25s;
}

.reading-book:hover .reading-cover::after,
.reading-book:focus-visible .reading-cover::after {
  opacity: 1;
  transform: translateX(110%);
}

.reading-cover img {
  height: 100%;
  object-fit: cover;
  position: relative;
  width: 100%;
  z-index: 1;
  display: block;
}

.reading-cover-fallback {
  align-items: center;
  color: white;
  display: none;
  font-family: Georgia, serif;
  font-size: 1.05rem;
  font-weight: 700;
  height: 100%;
  line-height: 1.25;
  padding: 1rem;
  position: relative;
  text-align: center;
  z-index: 0;
}

.reading-cover--missing .reading-cover-fallback {
  display: flex;
}

/* Favorite Star Badge */
.reading-favorite {
  align-items: center;
  background: #f5b700;
  border-radius: 50%;
  color: #261a00;
  display: flex;
  height: 1.75rem;
  justify-content: center;
  position: absolute;
  right: 0.45rem;
  top: 0.45rem;
  width: 1.75rem;
  z-index: 2;
  box-shadow: 0 2px 8px rgb(0 0 0 / 28%);
}

.reading-favorite .icon,
.reading-favorite svg {
  display: block;
  width: 0.95rem;
  height: 0.95rem;
  fill: currentColor;
}

/* Card details underneath cover */
.reading-book-details {
  padding: 0.65rem 0.1rem 0;
}

.reading-book-details h2 {
  font-size: 0.92rem;
  line-height: 1.25;
  margin: 0;
  font-weight: 700;
}

.reading-book-details p,
.reading-book-details span {
  color: var(--color-neutral-500);
  display: block;
  font-size: 0.76rem;
  line-height: 1.35;
  margin: 0.2rem 0 0;
}

.reading-book:focus-visible .reading-cover {
  box-shadow: 0 0 0 3px var(--color-primary-500), 0 0.45rem 1rem rgb(0 0 0 / 18%);
}

.reading-credit {
  color: var(--color-neutral-500);
  font-size: 0.8rem;
  margin-top: 2.5rem;
}

/* Body lock when modal is open */
body.reading-modal-open {
  overflow: hidden;
}

/* Themed Enlarged Card Modal Overlay */
.reading-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 9999;
  /* Keep the surrounding bookshelf visually receded while a card is open. */
  background: rgb(0 0 0 / 84%);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.22s ease, visibility 0.22s ease;
}

.reading-modal-backdrop.is-open {
  opacity: 1;
  visibility: visible;
}

.reading-modal-card {
  position: relative;
  width: 100%;
  max-width: 44rem;
  max-height: 90vh;
  overflow-y: auto;
  border-radius: 0.85rem;
  /* Deliberately opaque surfaces: theme neutrals can be translucent. */
  border: 1px solid #cbd5e1;
  background: #ffffff;
  color: #111827;
  box-shadow: 0 25px 50px -12px rgb(0 0 0 / 65%);
  transform: scale(0.96) translateY(10px);
  transition: transform 0.24s cubic-bezier(0.16, 1, 0.3, 1);
  padding: 2rem 1.75rem;
  box-sizing: border-box;
}

.reading-modal-backdrop.is-open .reading-modal-card {
  transform: scale(1) translateY(0);
}

:root[class~="dark"] .reading-modal-card,
html.dark .reading-modal-card,
body.dark .reading-modal-card {
  background: #111827;
  color: #f8fafc;
  border-color: #475569;
}

/* Close Button */
.reading-modal-close-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 50%;
  border: 1px solid #cbd5e1;
  background: #f1f5f9;
  color: inherit;
  font-size: 1.5rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.18s ease, transform 0.18s ease;
  z-index: 10;
}

.reading-modal-close-btn:hover {
  background: #e2e8f0;
  transform: scale(1.06);
}

:root[class~="dark"] .reading-modal-close-btn,
html.dark .reading-modal-close-btn,
body.dark .reading-modal-close-btn {
  border-color: #475569;
  background: #1e293b;
}

:root[class~="dark"] .reading-modal-close-btn:hover,
html.dark .reading-modal-close-btn:hover,
body.dark .reading-modal-close-btn:hover {
  background: #334155;
}

/* Modal Content Layout (Enlarged Card) */
.reading-modal-layout {
  display: flex;
  gap: 1.75rem;
  align-items: flex-start;
}

.reading-modal-cover-wrap {
  flex-shrink: 0;
  width: 12rem;
}

.reading-modal-cover {
  width: 100%;
  border-radius: 0.5rem;
  box-shadow: 0 10px 25px rgb(0 0 0 / 25%);
}

.reading-modal-details {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.reading-modal-header {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding-right: 2.2rem;
}

.reading-favorite-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: #f5b700;
  color: #261a00;
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  width: fit-content;
}

.reading-pill-icon {
  display: flex;
  align-items: center;
}

.reading-pill-icon svg,
.reading-pill-icon .icon {
  width: 0.8rem;
  height: 0.8rem;
  fill: currentColor;
}

.reading-modal-title {
  margin: 0;
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -0.025em;
}

.reading-modal-author {
  margin: 0;
  font-size: 1rem;
  color: #334155;
}

:root[class~="dark"] .reading-modal-author,
html.dark .reading-modal-author,
body.dark .reading-modal-author {
  color: #e2e8f0;
}

.reading-modal-meta {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  font-size: 0.88rem;
  padding: 0.65rem 0;
  border-top: 1px solid #cbd5e1;
  border-bottom: 1px solid #cbd5e1;
  color: #334155;
}

:root[class~="dark"] .reading-modal-meta,
html.dark .reading-modal-meta,
body.dark .reading-modal-meta {
  border-color: #475569;
  color: #e2e8f0;
}

.reading-modal-meta strong {
  color: currentColor;
}

/* Notes Section */
.reading-modal-notes {
  background: #f1f5f9;
  border-left: 3px solid var(--color-primary-600);
  border-radius: 0.35rem;
  padding: 0.85rem 1.1rem;
}

:root[class~="dark"] .reading-modal-notes,
html.dark .reading-modal-notes,
body.dark .reading-modal-notes {
  background: #1e293b;
}

.reading-modal-notes-heading {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #075985;
  margin-bottom: 0.35rem;
}

.reading-modal-notes-text {
  font-size: 0.95rem;
  line-height: 1.55;
}

.reading-modal-notes-text p {
  margin: 0 0 0.5rem;
}

.reading-modal-notes-text p:last-child {
  margin-bottom: 0;
}

/* Modal action links */
.reading-modal-actions {
  margin-top: 0.4rem;
}

.reading-modal-goodreads-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: #075985;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: color 0.18s ease;
}

.reading-modal-goodreads-link:hover {
  color: #0c4a6e;
  text-decoration: underline;
}

.reading-modal-goodreads-icon {
  align-items: center;
  display: inline-flex;
  flex: 0 0 auto;
}

.reading-modal-goodreads-icon svg,
.reading-modal-goodreads-icon .icon {
  display: block;
  height: 1em;
  width: 1em;
}

:root[class~="dark"] .reading-modal-notes-heading,
:root[class~="dark"] .reading-modal-goodreads-link,
html.dark .reading-modal-notes-heading,
html.dark .reading-modal-goodreads-link,
body.dark .reading-modal-notes-heading,
body.dark .reading-modal-goodreads-link {
  color: #7dd3fc;
}

:root[class~="dark"] .reading-modal-goodreads-link:hover,
html.dark .reading-modal-goodreads-link:hover,
body.dark .reading-modal-goodreads-link:hover {
  color: #bae6fd;
}

/* Mobile Responsiveness */
@media (max-width: 38rem) {
  .reading-page {
    padding-inline: 1rem;
  }
  .book-gallery {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.25rem 0.75rem;
  }
  .reading-modal-card {
    padding: 1.5rem 1.25rem;
  }
  .reading-modal-layout {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1.25rem;
  }
  .reading-modal-cover-wrap {
    width: 9rem;
  }
  .reading-modal-header {
    align-items: center;
    padding-right: 0;
  }
  .reading-modal-meta {
    justify-content: center;
  }
  .reading-modal-notes {
    text-align: left;
    width: 100%;
    box-sizing: border-box;
  }
  .reading-modal-actions {
    display: flex;
    justify-content: center;
  }
}