/* The collection: headline + search, newest-arrivals row, item grid,
 * covers, and the item detail page. */

/* Hero: the headline, then the search field as a single rule-bounded line
   (no box), then the filter row under a hairline. */
.library-hero { padding: 0.5rem 0 0; }
.library-hero h1 { margin-top: 0.2em; }

/* Search: an unmistakable field — full hairline box, magnifier inside the
   left edge, tall enough to be the page's primary control. */
.search-row { position: relative; }
.search-icon {
  position: absolute;
  left: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  pointer-events: none;
}
.search-row input[type="search"] {
  width: 100%;
  font-size: 1.2rem;
  font-weight: 400;
  padding: 0.85rem 1rem 0.85rem 3rem;
  border: 1px solid var(--rule-strong);
  border-radius: 0;
  background: var(--paper);
  -webkit-appearance: none;
  appearance: none;
}
.search-row input[type="search"]:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.search-row input[type="search"]:focus ~ .search-icon, .search-row:focus-within .search-icon { color: var(--accent); }
.search-row input::placeholder { color: var(--muted); }

.filter-row {
  display: flex;
  gap: 0.5rem 1.2rem;
  flex-wrap: wrap;
  align-items: center;
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--rule);
  font-size: 0.82rem;
}
.filter-row select {
  font-size: 0.82rem;
  font-weight: 500;
  padding: 0.3rem 1.4rem 0.3rem 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--ink);
  appearance: none;
  -webkit-appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, currentColor 50%), linear-gradient(-45deg, transparent 50%, currentColor 50%);
  background-position: right 0.55rem top 55%, right 0.25rem top 55%;
  background-size: 0.3rem 0.3rem;
  background-repeat: no-repeat;
  cursor: pointer;
}
.filter-row select:hover { color: var(--accent); }
.filter-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 500;
  white-space: nowrap;
}
/* Filter toggle button: a label wrapping a visually-hidden checkbox.
   Outlined when off, solid ink when on; focus ring follows the checkbox. */
.filter-button {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.8rem;
  border: 1px solid var(--rule-strong);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}
.filter-button input { position: absolute; opacity: 0; width: 1px; height: 1px; margin: 0; }
.filter-button:hover { background: var(--surface); }
.filter-button:has(input:checked) { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.filter-button:has(input:focus-visible) { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Newest arrivals: a row of covers. */
.recent-strip { margin-top: 2rem; }
.recent-strip h2 { margin: 0 0 0.8rem; }
.recent-shelf {
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--rule);
}
.recent-book { flex: 0 0 auto; }

.results-meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
  margin: 1.4rem 0 1rem;
}
.results-meta p {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0;
}

/* Covers/List switch — two words, the active one underlined. */
.view-toggle { display: inline-flex; gap: 1rem; font-size: 0.8rem; font-weight: 500; }
.view-toggle-option { color: var(--muted); padding-bottom: 2px; border-bottom: 2px solid transparent; }
.view-toggle-option:hover { color: var(--ink); text-decoration: none; }
.view-toggle-option.is-active { color: var(--ink); border-bottom-color: var(--ink); }

/* List view: a table-like column set on hairlines. */
.book-list { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--rule-strong); }
.book-row {
  display: grid;
  /* Fixed track sizes so columns line up across rows (an auto track
     would resize per row's content). */
  grid-template-columns: 2fr 1.6fr 2.2fr 7rem;
  gap: 1rem;
  align-items: baseline;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--rule);
}
@media (max-width: 720px) {
  .book-row { grid-template-columns: 1fr auto; }
  .book-row-author, .book-row-meta { grid-column: 1 / -1; }
}
.book-row-title { font-weight: 600; color: var(--ink); }
.book-row-title:hover { color: var(--accent); text-decoration: none; }
.book-row-author { color: var(--ink); font-size: 0.92rem; }
.book-row-meta { font-size: 0.8rem; color: var(--muted); }
.book-row-badges { justify-self: end; display: inline-flex; gap: 0.35rem; }

/* Grid: fixed gutters, covers align to a column grid. */
.book-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 2.2rem 1.5rem;
}

.book-card {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  text-decoration: none;
  color: var(--ink);
}
.book-card:hover { text-decoration: none; }
.book-card-cover { position: relative; }
.book-card:hover .cover { opacity: 0.92; }
.book-card-text { display: flex; flex-direction: column; gap: 0.15rem; }
.book-card-title { font-weight: 600; line-height: 1.25; letter-spacing: -0.01em; }
.book-card:hover .book-card-title { color: var(--accent); }
.book-card-author { font-size: 0.85rem; color: var(--ink); }
.book-card-meta { font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); margin-top: 0.15rem; }

/* Covers: real images and generated posters share the same box. A hairline
   keeps white covers from dissolving into the page. */
.cover {
  width: 100%;
  aspect-ratio: 2 / 3;
  object-fit: cover;
  display: block;
  background: var(--surface);
  outline: 1px solid var(--rule);
  outline-offset: -1px;
  transition: opacity 0.15s;
}

/* Generated cover for items with no ISBN (most single issues): a
   typographic poster — one flat tone from the six-tone palette keyed to
   the series (so a run reads as a run), the series name set large and
   tight at the top, the issue number as the big figure bottom-right, the
   credits small at the bottom-left. No texture, no ornament. */
.cover-placeholder {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 8% 8% 7%;
  background: var(--tone, var(--tone-2));
  color: var(--tone-ink, #ffffff);
  outline: none;
}
.cover-placeholder[hidden] { display: none; }
.cover-tone-0 { --tone: var(--tone-0); --tone-ink: var(--tone-0-ink); }
.cover-tone-1 { --tone: var(--tone-1); --tone-ink: var(--tone-1-ink); }
.cover-tone-2 { --tone: var(--tone-2); --tone-ink: var(--tone-2-ink); }
.cover-tone-3 { --tone: var(--tone-3); --tone-ink: var(--tone-3-ink); }
.cover-tone-4 { --tone: var(--tone-4); --tone-ink: var(--tone-4-ink); }
.cover-tone-5 { --tone: var(--tone-5); --tone-ink: var(--tone-5-ink); }

.cover-placeholder-title {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
  display: -webkit-box;
  -webkit-line-clamp: 5;
  -webkit-box-orient: vertical;
  overflow: hidden;
  overflow-wrap: anywhere;
}
.cover-placeholder-foot {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 0.4rem;
  min-width: 0;
}
.cover-placeholder-author {
  font-size: 0.62rem;
  font-weight: 500;
  line-height: 1.25;
  opacity: 0.85;
  min-width: 0;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.cover-placeholder-author:empty { display: none; }
.cover-placeholder-corner {
  flex: 0 0 auto;
  margin-left: auto;
  font-size: 1.9rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 0.9;
}

.cover-recent { width: 100px; }
.cover-recent .cover-placeholder-title { font-size: 0.8rem; -webkit-line-clamp: 4; }
.cover-recent .cover-placeholder-author { display: none; }
.cover-recent .cover-placeholder-corner { font-size: 1.2rem; }
.cover-large { max-width: 300px; }
.cover-large .cover-placeholder-title { font-size: 1.9rem; }
.cover-large .cover-placeholder-author { font-size: 0.8rem; }
.cover-large .cover-placeholder-corner { font-size: 3.2rem; }

/* Item detail page: cover column, then a text column on the grid. */
.book-page {
  display: grid;
  grid-template-columns: minmax(160px, 300px) minmax(0, 1fr);
  gap: 3rem;
  margin-top: 1.5rem;
}
@media (max-width: 640px) {
  .book-page { grid-template-columns: 1fr; gap: 1.5rem; }
  .book-page-cover { max-width: 220px; }
}

.book-page-actions { display: flex; gap: 0.6rem; margin-top: 1rem; }
.book-page h1 { margin-top: 0; }
.book-byline { color: var(--ink); font-size: 1.05rem; margin: -0.2rem 0 0; display: flex; gap: 0.7rem; align-items: center; flex-wrap: wrap; }

.book-details {
  display: grid;
  grid-template-columns: 9rem minmax(0, 1fr);
  gap: 0;
  font-size: 0.95rem;
  margin: 1.5rem 0;
  border-top: 1px solid var(--rule-strong);
}
.book-details dt, .book-details dd { padding: 0.5rem 0; border-bottom: 1px solid var(--rule); margin: 0; }
.book-details dt {
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding-top: 0.7rem;
}

.book-comments { border-left: 3px solid var(--rule-strong); padding-left: 1rem; color: var(--ink); }

.note-list { list-style: none; padding: 0; margin: 0; }
.note-list li { margin-bottom: 0.7rem; }
.note-actions { font-size: 0.82rem; margin-left: 0.5rem; display: inline-flex; gap: 0.5rem; }
.note-actions form { display: inline; }

.loan-history ul { color: var(--muted); padding-left: 1.1rem; }