/* ================================================================
   LIBRARY MODULE (formerly Research)

   2026-06-17 reshape: landing is the book-cover grid. The Q&A hero
   is retired (cost) but kept in markup — `.lib-hero-retired` hides
   it without deleting the wiring.
================================================================ */

/* Retired Lex Q&A hero — flip this off to bring it back. */
.lib-hero-retired { display: none !important; }

/* ── Top toolbar (search · scope · saved · upload) ───────────── */
.lib-toolbar {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}
.lib-toolbar .lib-search-row {
  flex: 1 1 18rem;
  min-width: 14rem;
}
.lib-toolbar .lib-scope-tabs {
  flex: 0 0 auto;
}
.lib-toolbar-btn {
  flex: 0 0 auto;
  white-space: nowrap;
}

/* Pin grid count to the right of the chip row */
.lib-grid-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.85rem;
  margin-bottom: 0.6rem;
  flex-wrap: wrap;
}
.lib-grid-header .lib-folder-chips {
  flex: 1 1 auto;
  margin-bottom: 0;
}

/* ── Search row ──────────────────────────────────────────────── */
.lib-search-row {
  position: relative;
  display: flex;
  align-items: center;
}
.lib-search-icon {
  position: absolute;
  left: 0.9rem;
  color: var(--muted);
  pointer-events: none;
}
.lib-search-input {
  width: 100%;
  border: 1px solid var(--border);
  background: var(--white);
  border-radius: var(--r-md);
  padding: 0.75rem 1rem 0.75rem 2.4rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--ink);
  transition: border-color var(--t), box-shadow var(--t);
}
.lib-search-input:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-bg);
}

.lib-scope-tabs {
  display: inline-flex;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.2rem;
  gap: 0.15rem;
}
.lib-scope-tab {
  border: none;
  background: transparent;
  color: var(--mid);
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 500;
  padding: 0.4rem 0.95rem;
  border-radius: 999px;
  cursor: pointer;
  transition: all var(--t);
}
.lib-scope-tab:hover { color: var(--ink); }
.lib-scope-tab.is-active {
  background: var(--white);
  color: var(--ink);
  box-shadow: 0 1px 3px rgba(0,0,0,0.07);
}

.lib-grid-count {
  font-size: 0.75rem;
  color: var(--muted);
  font-weight: 500;
}

/* ── Folder chips ─────────────────────────────────────────────── */
.lib-folder-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 1rem;
}
.lib-folder-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border: 1px solid var(--border);
  background: var(--white);
  color: var(--mid);
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 500;
  border-radius: 999px;
  padding: 0.3rem 0.4rem 0.3rem 0.8rem;
  cursor: pointer;
  transition: all var(--t);
}
.lib-folder-chip:hover {
  border-color: var(--gold);
  color: var(--ink);
  background: var(--gold-bg);
}
.lib-folder-chip.is-active {
  background: var(--ink);
  color: var(--white);
  border-color: var(--ink);
}
.lib-folder-chip-count {
  background: var(--surface);
  color: var(--mid);
  border-radius: 999px;
  padding: 0.05rem 0.45rem;
  font-size: 0.68rem;
  min-width: 1.2rem;
  text-align: center;
}
.lib-folder-chip.is-active .lib-folder-chip-count {
  background: rgba(255,255,255,0.18);
  color: var(--white);
}

/* ── Book-cover grid ──────────────────────────────────────────── */
.lib-cover-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(11rem, 1fr));
  gap: 1.25rem 1.1rem;
  padding: 0.25rem 0 1rem;
}

.lib-cover {
  background: none;
  border: none;
  padding: 0;
  text-align: left;
  cursor: pointer;
  font-family: var(--font-sans);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.lib-cover-face {
  position: relative;
  aspect-ratio: 3 / 4;
  border-radius: 4px 8px 8px 4px;
  padding: 1.3rem 1.1rem 1.05rem 1.25rem;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  color: var(--white);
  background: var(--ink);
  box-shadow:
    inset 4px 0 0 rgba(0,0,0,0.18),
    inset 6px 0 0 rgba(255,255,255,0.08),
    0 1px 2px rgba(0,0,0,0.04),
    0 8px 18px -8px rgba(0,0,0,0.25);
  transition: transform var(--t), box-shadow var(--t);
}

.lib-cover:hover .lib-cover-face {
  transform: translateY(-3px);
  box-shadow:
    inset 4px 0 0 rgba(0,0,0,0.18),
    inset 6px 0 0 rgba(255,255,255,0.08),
    0 2px 4px rgba(0,0,0,0.06),
    0 16px 30px -10px rgba(0,0,0,0.32);
}

/* Spine palette (deterministic per folder) */
.lib-cover[data-tone="ink"]    .lib-cover-face { background: #1A1A1A; }
.lib-cover[data-tone="navy"]   .lib-cover-face { background: #1f2d4d; }
.lib-cover[data-tone="forest"] .lib-cover-face { background: #1f3d33; }
.lib-cover[data-tone="wine"]   .lib-cover-face { background: #4a1f29; }
.lib-cover[data-tone="gold"]   .lib-cover-face { background: #5a4724; }
.lib-cover[data-tone="slate"]  .lib-cover-face { background: #2c3540; }

.lib-cover-rule {
  width: 28px;
  height: 2px;
  background: var(--gold);
  margin-bottom: 0.7rem;
  flex-shrink: 0;
}

.lib-cover-title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  line-height: 1.25;
  color: var(--white);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 5;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-break: break-word;
}

.lib-cover-year {
  margin-top: auto;
  font-family: var(--font-serif);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.62);
  padding-top: 0.6rem;
}

.lib-cover-folder {
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 600;
  color: rgba(255,255,255,0.55);
  margin-top: 0.45rem;
  border-top: 1px solid rgba(255,255,255,0.14);
  padding-top: 0.45rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.lib-cover-badge {
  position: absolute;
  top: 0.55rem;
  right: 0.55rem;
  background: var(--gold);
  color: var(--ink);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  text-transform: uppercase;
}

.lib-cover-caption {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0 0.1rem;
}
.lib-cover-caption-title {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.lib-cover-caption-sub {
  font-size: 0.7rem;
  color: var(--muted);
}

/* ── Saved research drawer ──────────────────────────────────── */
.lib-drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.25);
  z-index: 60;
}
.lib-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(24rem, 92vw);
  background: var(--white);
  border-left: 1px solid var(--border);
  box-shadow: -8px 0 24px -10px rgba(0, 0, 0, 0.18);
  z-index: 61;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 220ms cubic-bezier(.2,.7,.2,1);
}
.lib-drawer.is-open { transform: translateX(0); }
.lib-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.1rem;
  border-bottom: 1px solid var(--border);
}
.lib-drawer-title {
  font-size: 1rem;
  font-weight: 500;
  color: var(--ink);
}
.lib-drawer-body {
  flex: 1;
  overflow-y: auto;
  padding: 0.9rem 1rem 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

/* Override the grid layout inside the drawer — single column reads better. */
.lib-drawer-body#research-saved-list {
  display: flex !important;
  flex-direction: column;
}

/* Empty state for the cover grid */
.lib-grid-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 2.5rem 1.5rem;
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: var(--r-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.45rem;
}
.lib-grid-empty-icon { margin-bottom: 0.2rem; }
.lib-grid-empty-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--ink);
}
.lib-grid-empty-sub {
  font-size: 0.85rem;
  color: var(--muted);
  max-width: 26rem;
  line-height: 1.5;
}



/* Cap every view inside the Research module — landing, answer,
   session, browse, plus the module-header — to a comfortable
   reading band on wide monitors. Matches analyse-doc (80rem) for
   a consistent feel when navigating between Research and Analysis.
   Stretching to 27" viewport width was an eyesore on the saved-
   research grid and the search hero. */
#module-library > .module-header,
#module-library > .research-landing,
#module-library > .research-answer-view,
#module-library > .research-session-view,
#module-library > .research-browse-view {
  width: 100%;
  max-width: 80rem;
  margin-left: auto;
  margin-right: auto;
}

/* ── Landing ─────────────────────────────────────────────────── */
.research-landing {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  min-height: 0;
  overflow-y: auto;
  padding: 0.5rem 0 2rem;
}

.research-hero {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 2.25rem 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.research-search {
  display: flex;
  gap: 0.6rem;
  align-items: flex-end;
}

.research-textarea {
  flex: 1;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 0.85rem 1rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.45;
  color: var(--ink);
  background: var(--surface);
  resize: none;
  min-height: 3.25rem;
  transition: border-color var(--t), background var(--t);
}

.research-textarea:focus {
  outline: none;
  border-color: var(--gold);
  background: var(--white);
}

.research-send {
  background: var(--ink);
  color: var(--white);
  border: none;
  border-radius: var(--r-md);
  width: 2.75rem;
  height: 2.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--t);
  flex-shrink: 0;
}

.research-send:hover { background: #1a1a1a; }

.research-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.research-chip {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.35rem 0.85rem;
  font-size: 0.78rem;
  color: var(--mid);
  cursor: pointer;
  transition: all var(--t);
  font-family: var(--font-sans);
}

.research-chip:hover {
  border-color: var(--gold);
  color: var(--ink);
  background: var(--gold-bg);
}

.research-section {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.research-section-title {
  font-size: 0.7rem;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.6px;
}

.research-empty {
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: var(--r-md);
  padding: 1rem 1.1rem;
  font-size: 0.85rem;
  color: var(--mid);
  line-height: 1.5;
}

.research-resources {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(13rem, 1fr));
  gap: 0.6rem;
}

.research-resource {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 0.85rem 1rem;
  text-align: left;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  transition: all var(--t);
  font-family: var(--font-sans);
}

.research-resource:hover {
  border-color: var(--gold);
  background: var(--gold-bg);
}

.research-resource .resource-name {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ink);
}

.research-resource .resource-sub {
  font-size: 0.7rem;
  color: var(--muted);
}

/* ── Answer view ─────────────────────────────────────────────── */
.research-answer-view {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-height: 0;
  overflow-y: auto;
  padding: 0.25rem 0 2rem;
}

.research-back {
  align-self: flex-start;
  background: none;
  border: none;
  color: var(--muted);
  font-size: 0.8125rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  cursor: pointer;
  padding: 0.35rem 0.5rem;
  border-radius: var(--r-sm);
  transition: all var(--t);
  font-family: var(--font-sans);
}

.research-back:hover {
  color: var(--ink);
  background: var(--surface);
}

.research-question {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  line-height: 1.35;
  color: var(--ink);
  padding: 0.25rem 0 0.5rem;
}

.research-answer {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 1.5rem 1.75rem;
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--ink);
}

.research-answer p { margin: 0.6rem 0; }
.research-answer p:first-child { margin-top: 0; }
.research-answer p:last-child { margin-bottom: 0; }
.research-answer h2, .research-answer h3 { font-family: var(--font-serif); margin: 1.1rem 0 0.5rem; }
.research-answer ul, .research-answer ol { margin: 0.5rem 0; padding-left: 1.5rem; }
.research-answer li { margin: 0.25rem 0; }

.research-thinking {
  display: flex;
  align-items: center;
  color: var(--muted);
  font-size: 0.875rem;
  padding: 0.5rem 0;
}

.research-error {
  color: #B23B3B;
  font-size: 0.875rem;
  padding: 0.5rem 0;
}

.research-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  padding-top: 0.25rem;
}

/* ── Contextual next-action chips (Lex-suggested) ───────────── */
.research-suggested-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 0.25rem 0;
}

.research-action-chip {
  background: var(--ink);
  color: var(--white);
  border: 1px solid var(--ink);
  border-radius: 999px;
  padding: 0.45rem 0.95rem;
  font-size: 0.82rem;
  font-family: var(--font-sans);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--t);
  text-align: left;
}

.research-action-chip:hover {
  background: var(--gold);
  color: var(--ink);
  border-color: var(--gold);
}

/* ── Case citation lookup links (training-based references) ──── */
.research-case-cite {
  color: var(--ink);
  font-style: italic;
  text-decoration: none;
  border-bottom: 1px dotted var(--gold);
  cursor: pointer;
  transition: color var(--t), border-color var(--t);
}

.research-case-cite:hover {
  color: var(--gold);
  border-bottom-color: var(--ink);
}

/* ── Sources panel (web citations) ──────────────────────────── */
.research-sources {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--border);
}

.research-sources-title {
  font-size: 0.7rem;
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.6px;
  color: var(--muted);
  margin-bottom: 0.6rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.research-sources-count {
  background: var(--surface);
  color: var(--mid);
  font-size: 0.65rem;
  padding: 0.05rem 0.4rem;
  border-radius: 999px;
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
}

.research-sources-list {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.research-source {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  padding: 0.55rem 0.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  text-decoration: none;
  color: var(--ink);
  transition: all var(--t);
  font-size: 0.8rem;
  line-height: 1.4;
}

.research-source:hover {
  border-color: var(--gold);
  background: var(--gold-bg);
}

.research-source-num {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--white);
  background: var(--ink);
  width: 1.3rem;
  height: 1.3rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 0.05rem;
}

.research-source-meta {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  min-width: 0;
  flex: 1;
}

.research-source-title {
  color: var(--ink);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.research-source-host {
  color: var(--muted);
  font-size: 0.7rem;
}

/* Cases-cited panel — extracted from the AI's prose so the lawyer can
   verify each authority against its source (or a fallback search). */
.research-cases-panel .research-source-num {
  background: var(--gold);
  color: var(--ink);
}
.research-cited-cite {
  color: var(--muted);
  font-weight: 400;
  font-size: 0.72rem;
  margin-left: 0.35rem;
}

/* Authorities panel — statutes (primary) + cases (interpretive).
   Sub-section titles separate the two so the lawyer's eye lands on
   the statutory authority first. */
.research-authorities-panel .research-authorities-subtitle {
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink);
  margin: 0.85rem 0 0.5rem;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid var(--border);
}
.research-authorities-panel .research-authorities-subtitle:first-child {
  margin-top: 0;
}
.research-statute-num {
  background: var(--ink) !important;
  color: var(--gold) !important;
  font-family: var(--font-serif);
  font-size: 0.85rem;
  font-weight: 700;
}
.research-statute-row .research-source-title {
  white-space: normal;
}

/* ── Saved research cards ────────────────────────────────────── */
#research-saved-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(18rem, 1fr));
  gap: 0.6rem;
}

.research-saved-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 0.85rem 1rem;
  cursor: pointer;
  transition: all var(--t);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.research-saved-card:hover {
  border-color: var(--gold);
  background: var(--gold-bg);
}

.research-saved-title {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.35;
}

.research-saved-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.7rem;
}

.research-saved-type, .research-saved-matter {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.1rem 0.5rem;
  color: var(--mid);
}

.research-saved-matter {
  background: var(--gold-bg);
  border-color: var(--gold-dim);
  color: var(--gold);
  font-weight: 500;
}

.research-saved-time {
  color: var(--muted);
  margin-left: auto;
}

/* ── Session view ────────────────────────────────────────────── */
.research-session-view {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  min-height: 0;
  padding: 0.25rem 0 0.5rem;
}

.research-session-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.research-session-title-row {
  flex: 1;
  min-width: 0;
}

.research-session-title {
  font-size: 1.4rem;
  line-height: 1.3;
  color: var(--ink);
  cursor: pointer;
  padding: 0.15rem 0.4rem;
  margin: -0.15rem -0.4rem 0;
  border-radius: var(--r-sm);
  transition: background var(--t);
}

.research-session-title:hover {
  background: var(--surface);
}

.research-session-meta {
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 0.3rem;
}

.research-session-actions {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.research-session-thread {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding-right: 0.25rem;
  min-height: 0;
}

.session-msg {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.session-msg-role {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--muted);
  font-weight: 600;
}

.session-msg-body {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 0.85rem 1.1rem;
  font-size: 0.925rem;
  line-height: 1.6;
  color: var(--ink);
}

.session-msg-user .session-msg-body {
  background: var(--surface);
  font-family: var(--font-serif);
  font-size: 1rem;
  border-color: var(--border);
}

.session-msg-body p { margin: 0.5rem 0; }
.session-msg-body p:first-child { margin-top: 0; }
.session-msg-body p:last-child { margin-bottom: 0; }
.session-msg-body h2, .session-msg-body h3 { font-family: var(--font-serif); margin: 0.85rem 0 0.4rem; }
.session-msg-body ul, .session-msg-body ol { margin: 0.4rem 0; padding-left: 1.5rem; }
.session-msg-body li { margin: 0.2rem 0; }

.research-session-input {
  display: flex;
  gap: 0.6rem;
  align-items: flex-end;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 0.6rem;
}

.research-session-input .research-textarea {
  border: none;
  background: transparent;
  padding: 0.4rem 0.5rem;
  min-height: 2.5rem;
}

.research-session-input .research-textarea:focus {
  background: transparent;
}

/* ── Browse view (existing repository, revealed via toggle) ──── */
.research-browse-view {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.library-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  flex: 1;
  min-height: 0;
}
.library-panel-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 1rem;
}
.library-panel-title { font-family: var(--font-serif); font-size: 1.1rem; font-weight: 500; }
.library-doc-item {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0.85rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  margin-bottom: 0.5rem;
  cursor: pointer;
  transition: border-color var(--t);
}
.library-doc-item:hover { border-color: var(--gold); }

/* Library Lex panel */
.library-lex-panel {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  display: flex; flex-direction: column;
  overflow: hidden;
  height: calc(100dvh - 10rem);
}
.library-lex-header {
  background: var(--ink);
  padding: 1rem;
  display: flex; align-items: center; gap: 0.65rem;
}
.library-lex-title { font-family: var(--font-serif); font-size: 1rem; color: var(--white); }
.library-lex-sub { font-size: 0.75rem; color: rgba(255,255,255,0.4); }
.library-lex-messages { flex: 1; overflow-y: auto; padding: 1rem; display: flex; flex-direction: column; gap: 0.75rem; }
.library-lex-input { padding: 0.75rem; border-top: 1px solid var(--border); display: flex; gap: 0.5rem; }

/* ── Library category breadcrumb + folder grid ──────────────── */
.lib-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8125rem;
  flex-wrap: wrap;
  min-width: 0;
}
.lib-crumb {
  color: var(--muted);
  cursor: pointer;
  padding: 0.2rem 0.45rem;
  border-radius: var(--r-sm);
  transition: all var(--t);
}
.lib-crumb:hover { color: var(--ink); background: var(--surface); }
.lib-crumb.active { color: var(--ink); font-weight: 500; }
.lib-crumb-sep { color: var(--muted); }

.lib-folder-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(11rem, 1fr));
  gap: 0.6rem;
  padding: 0.25rem 0;
}
.lib-folder-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 0.85rem 0.95rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  transition: all var(--t);
}
.lib-folder-card:hover { border-color: var(--gold); background: var(--gold-bg); }
.lib-folder-card-icon {
  color: var(--gold);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lib-folder-card-body { flex: 1; min-width: 0; }
.lib-folder-card-name {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.lib-folder-card-count {
  font-size: 0.7rem;
  color: var(--muted);
  margin-top: 0.1rem;
}

/* Library Lex citation links — clickable [DOC X, p.Y] badges */
.lib-cite {
  display: inline-block;
  background: var(--gold-bg);
  color: var(--gold);
  padding: 0.05rem 0.4rem;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 600;
  text-decoration: none;
  margin: 0 0.15rem;
  cursor: pointer;
  border: 1px solid var(--gold-dim);
  vertical-align: baseline;
  transition: all var(--t);
}
.lib-cite:hover { background: var(--gold); color: var(--ink); }