/* library.css — the communal library styles
 * Register: letterpress, woodcut, quiet.
 * Inherits palette from endless.css; adds library-specific styles.
 */

@import url("endless.css");

/* ---- masthead ---- */
.lib-masthead {
  max-width: 64rem;
  margin: 0 auto;
  padding: 4rem 1.5rem 2rem 1.5rem;
  border-bottom: 1px solid var(--endless-rule);
}
.lib-title {
  font-family: var(--endless-font-serif);
  font-weight: 500;
  font-size: 2.6rem;
  line-height: 1.1;
  margin: 0 0 0.5rem 0;
  letter-spacing: -0.005em;
}
.lib-subtitle {
  font-family: var(--endless-font-sans);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: lowercase;
  color: var(--endless-rule);
  margin: 0 0 1.5rem 0;
}
.lib-intro {
  font-family: var(--endless-font-serif);
  font-size: 1.05rem;
  line-height: 1.65;
  max-width: 36rem;
  margin: 1rem 0;
  color: var(--endless-ink);
}

/* ---- tag filter row ---- */
.lib-controls {
  max-width: 64rem;
  margin: 1.5rem auto 0;
  padding: 0 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}
.lib-controls-label {
  font-family: var(--endless-font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: lowercase;
  color: var(--endless-rule);
  margin-right: 0.5rem;
}
.lib-tag {
  display: inline-block;
  font-family: var(--endless-font-sans);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--endless-rule);
  background: var(--endless-paper);
  color: var(--endless-ink);
  border-radius: 2px;
  cursor: pointer;
  transition: background 200ms, color 200ms, border-color 200ms;
}
.lib-tag:hover { border-color: var(--endless-dot); }
.lib-tag[aria-pressed="true"] {
  background: var(--endless-ink);
  color: var(--endless-paper);
  border-color: var(--endless-ink);
}
.lib-sort {
  margin-left: auto;
  font-family: var(--endless-font-sans);
  font-size: 0.75rem;
  background: var(--endless-paper);
  border: 1px solid var(--endless-rule);
  padding: 0.3rem 0.5rem;
  border-radius: 2px;
  color: var(--endless-ink);
}

/* ---- grid ---- */
.lib-grid {
  max-width: 64rem;
  margin: 2rem auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1.75rem 1.25rem;
}

.lib-card {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: transform 250ms ease;
}
.lib-card:hover { transform: translateY(-2px); }
.lib-card-cover {
  width: 100%;
  aspect-ratio: 2 / 3;
  background: var(--endless-paper-soft);
  border: 1px solid var(--endless-rule);
  display: block;
  overflow: hidden;
}
.lib-card-cover svg {
  width: 100%;
  height: 100%;
  display: block;
}
.lib-card-title {
  margin: 0.75rem 0 0.25rem 0;
  font-family: var(--endless-font-serif);
  font-size: 0.95rem;
  line-height: 1.25;
  font-weight: 500;
}
.lib-card-author {
  margin: 0;
  font-family: var(--endless-font-sans);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--endless-rule);
}
.lib-card-one-line {
  margin: 0.4rem 0 0 0;
  font-family: var(--endless-font-serif);
  font-size: 0.85rem;
  line-height: 1.4;
  color: var(--endless-ink);
  font-style: italic;
}
.lib-card.is-hidden { display: none; }

/* ---- book page ---- */
.lib-book {
  max-width: 50rem;
  margin: 0 auto;
  padding: 4rem 1.5rem;
}
.lib-book-header {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--endless-rule);
  align-items: start;
}
.lib-book-cover {
  width: 100%;
  aspect-ratio: 2 / 3;
  background: var(--endless-paper-soft);
  border: 1px solid var(--endless-rule);
}
.lib-book-cover svg { width: 100%; height: 100%; display: block; }
.lib-book-meta {
  font-family: var(--endless-font-sans);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--endless-rule);
  text-transform: lowercase;
  margin-bottom: 0.5rem;
}
.lib-book-title {
  font-family: var(--endless-font-serif);
  font-weight: 500;
  font-size: 2rem;
  line-height: 1.15;
  margin: 0 0 0.5rem 0;
}
.lib-book-author {
  font-family: var(--endless-font-serif);
  font-style: italic;
  font-size: 1.1rem;
  margin: 0 0 1rem 0;
}
.lib-book-one-line {
  font-family: var(--endless-font-serif);
  font-size: 1.05rem;
  line-height: 1.5;
  margin: 0 0 1.25rem 0;
  color: var(--endless-ink);
}
.lib-book-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0 0 1.25rem 0;
}
.lib-book-tag {
  font-family: var(--endless-font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: var(--endless-rule);
  border: 1px solid var(--endless-rule);
  padding: 0.2rem 0.5rem;
  border-radius: 2px;
}

.lib-book-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
}
.lib-btn {
  display: inline-block;
  font-family: var(--endless-font-sans);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: lowercase;
  padding: 0.6rem 1rem;
  background: var(--endless-ink);
  color: var(--endless-paper);
  border: 1px solid var(--endless-ink);
  text-decoration: none;
  border-radius: 2px;
  cursor: pointer;
  transition: background 200ms ease;
}
.lib-btn:hover { background: var(--endless-dot); border-color: var(--endless-dot); }
.lib-btn-secondary {
  background: var(--endless-paper);
  color: var(--endless-ink);
}
.lib-btn-secondary:hover {
  background: var(--endless-paper-soft);
  color: var(--endless-ink);
  border-color: var(--endless-dot);
}
.lib-btn[disabled] {
  background: var(--endless-paper-soft);
  color: var(--endless-rule);
  border-color: var(--endless-rule);
  cursor: not-allowed;
}

/* ---- why-it-matters block ---- */
.lib-why {
  max-width: 36rem;
  margin: 2.5rem auto;
  font-family: var(--endless-font-serif);
  font-size: 1.05rem;
  line-height: 1.7;
}
.lib-why-heading {
  font-family: var(--endless-font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: lowercase;
  color: var(--endless-rule);
  margin: 0 0 1rem 0;
}

/* ---- shelf block ---- */
.lib-shelf {
  max-width: 50rem;
  margin: 3rem auto;
  padding-top: 2rem;
  border-top: 1px solid var(--endless-rule);
}
.lib-shelf-heading {
  font-family: var(--endless-font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: lowercase;
  color: var(--endless-rule);
  text-align: center;
  margin: 0 0 1.5rem 0;
}
.lib-shelf-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.lib-shelf-grid .lib-card-cover { aspect-ratio: 2 / 3; }
@media (max-width: 720px) {
  .lib-shelf-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
  .lib-book-header { grid-template-columns: 1fr; }
  .lib-book-title { font-size: 1.6rem; }
}

/* ---- companion essays ---- */
.lib-companions {
  max-width: 36rem;
  margin: 3rem auto;
  padding-top: 2rem;
  border-top: 1px solid var(--endless-rule);
}
.lib-companions-heading {
  font-family: var(--endless-font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: lowercase;
  color: var(--endless-rule);
  margin: 0 0 1rem 0;
}
.lib-companion {
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px dotted var(--endless-rule);
}
.lib-companion:last-child { border-bottom: none; }
.lib-companion-site {
  font-family: var(--endless-font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: lowercase;
  color: var(--endless-dot);
}
.lib-companion-title {
  font-family: var(--endless-font-serif);
  font-size: 1rem;
  margin: 0.2rem 0;
}
.lib-companion-title a {
  color: var(--endless-ink);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.lib-companion-title a:hover { border-bottom-color: var(--endless-dot); }
.lib-companion-one-line {
  font-family: var(--endless-font-serif);
  font-style: italic;
  font-size: 0.9rem;
  color: var(--endless-ink);
  margin: 0;
}

/* ---- borrow card ---- */
.lib-borrow-card {
  max-width: 36rem;
  margin: 2rem auto;
  padding: 1.5rem 1.75rem;
  background: var(--endless-bench);
  border-left: 3px solid var(--endless-dot);
  border-radius: 2px;
  font-family: var(--endless-font-serif);
  font-size: 1rem;
  line-height: 1.55;
}
.lib-borrow-card p { margin: 0 0 0.5rem 0; }
.lib-borrow-card .lib-borrow-stamp {
  font-style: italic;
  font-size: 0.85rem;
  color: var(--endless-ink);
  margin-top: 0.5rem;
}
.lib-borrow-card .lib-borrow-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.75rem;
}
.lib-borrow-card .lib-btn {
  background: var(--endless-paper);
  color: var(--endless-ink);
  border-color: var(--endless-ink);
}
.lib-borrow-card .lib-btn:hover {
  background: var(--endless-ink);
  color: var(--endless-paper);
}

/* ---- empty state ---- */
.lib-empty {
  text-align: center;
  font-family: var(--endless-font-serif);
  font-style: italic;
  color: var(--endless-rule);
  padding: 4rem 1rem;
}