/* B1-2 Library: Company / Teams / Mine rail, breadcrumbs, item page and the
   chat "Save to Library" chip. Builds on design-foundation.css tokens and the
   shared library card, row and toolbar styles; nothing here restyles them. */

.lib-layout { display:grid; grid-template-columns:200px minmax(0,1fr); gap:28px; align-items:start; }
.lib-main { min-width:0; }

.lib-rail { position:sticky; top:12px; display:flex; flex-direction:column; gap:2px; }
.lib-rail-item { display:flex; align-items:center; gap:10px; width:100%; min-height:var(--nav-item-h); padding:6px 10px; border:0; border-radius:9px; background:transparent; color:var(--ink-2); font:inherit; font-size:14px; text-align:left; text-decoration:none; cursor:pointer; }
.lib-rail-item svg { width:16px; height:16px; flex:none; color:var(--ink-3); }
.lib-rail-item span { min-width:0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.lib-rail-item:hover { background:var(--hover); color:var(--ink); }
.lib-rail-item.active { background:var(--quiet); color:var(--ink); font-weight:600; }
.lib-rail-item.active svg { color:var(--ink); }
.lib-rail-sub { padding-left:36px; min-height:30px; }
.lib-rail-group > summary { list-style:none; }
.lib-rail-group > summary::-webkit-details-marker { display:none; }
.lib-rail-caret { margin-left:auto; display:grid; transition:transform .12s ease; }
.lib-rail-caret svg { width:14px; height:14px; }
.lib-rail-group:not([open]) .lib-rail-caret { transform:rotate(-90deg); }
.lib-rail-divider { height:1px; margin:8px 10px; background:var(--line); }

.lib-switcher { display:none; }
.lib-head { display:flex; align-items:center; justify-content:space-between; gap:12px; min-height:34px; margin:0 0 12px; }
.lib-crumbs { display:flex; align-items:center; flex-wrap:wrap; gap:4px; min-width:0; font-size:var(--text-lg); }
.lib-crumb { max-width:260px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; color:var(--ink-2); text-decoration:none; border-radius:6px; padding:2px 4px; }
a.lib-crumb:hover { color:var(--ink); background:var(--hover); }
.lib-crumb.current { color:var(--ink); font-weight:600; }
.lib-crumb-sep { color:var(--ink-3); }
.lib-crumb-more { border:0; background:transparent; font:inherit; cursor:pointer; }
.lib-crumb-more, .lib-crumb-more + .lib-crumb-sep { display:none; }

.lib-top-actions { display:flex; align-items:center; gap:8px; }
.lib-new { position:relative; }
.lib-new > summary { list-style:none; display:inline-flex; align-items:center; gap:6px; }
.lib-new > summary::-webkit-details-marker { display:none; }
.lib-new > summary svg { width:16px; height:16px; }
.lib-new .library-option-actions { right:0; min-width:190px; }
.lib-new .library-option-actions .btn { justify-content:flex-start; gap:8px; }
.lib-sort > summary span { white-space:nowrap; }
.lib-dir { min-width:34px; justify-content:center; font-size:15px; }

.lib-panel { position:relative; border-radius:14px; }
.lib-panel.dragging { outline:2px dashed var(--line-3); outline-offset:6px; background:var(--hover); }
.lib-upload-status:empty { display:none; }
.lib-folder-card .library-card-preview { background:var(--hover); }
.lib-folder-glyph svg { width:34px; height:34px; color:var(--ink-3); }
.lib-folder-row .type-ico svg { color:var(--ink-2); }
#lib-more { margin-top:16px; }

/* Folder tree (Move, Choose folder) and access lists (Share, Teams). */
.lib-tree, .lib-tree ul { list-style:none; margin:0; padding:0; }
.lib-tree ul { padding-left:22px; }
.lib-tree-row { display:flex; align-items:center; gap:2px; }
.lib-tree-toggle { width:26px; height:26px; flex:none; display:grid; place-items:center; border:0; border-radius:6px; background:transparent; color:var(--ink-3); cursor:pointer; }
.lib-tree-toggle svg { width:14px; height:14px; transform:rotate(-90deg); transition:transform .12s ease; }
.lib-tree-toggle[aria-expanded="true"] svg { transform:none; }
.lib-tree-pick { display:flex; align-items:center; gap:8px; flex:1; min-width:0; padding:6px 8px; border:0; border-radius:8px; background:transparent; color:var(--ink); font:inherit; text-align:left; cursor:pointer; }
.lib-tree-pick svg { width:16px; height:16px; flex:none; color:var(--ink-3); }
.lib-tree-pick:hover { background:var(--hover); }
.lib-tree-pick[aria-pressed="true"] { background:var(--quiet); font-weight:600; }
.lib-tree-empty { padding:4px 8px 4px 34px; }
.lib-access { display:flex; flex-direction:column; margin:0 0 16px; }
.lib-access-row { display:flex; align-items:center; gap:10px; padding:10px 0; border-bottom:1px solid var(--line); }
.lib-access-row .grow { display:flex; flex-direction:column; min-width:0; flex:1; }
.lib-access-row small { color:var(--ink-3); }
.lib-access-row select { width:auto; }
.lib-radio { border:0; margin:0; padding:0; display:flex; flex-direction:column; gap:6px; }
.lib-radio legend { margin-bottom:6px; }
.lib-switch-list { display:flex; flex-direction:column; gap:2px; }
.lib-form label { display:flex; flex-direction:column; gap:6px; margin:0 0 14px; color:var(--ink-2); font-size:13px; font-weight:500; }
.lib-form label > input:not([type="checkbox"]):not([type="radio"]), .lib-form label > select { width:100%; font-size:14px; color:var(--ink); }
.lib-form select, .lib-access-row select { min-height:36px; padding:6px 10px; border:1px solid var(--line-2); border-radius:9px; background:var(--quiet); color:var(--ink); font:inherit; }
.lib-form label.check { flex-direction:row; align-items:center; gap:8px; color:var(--ink); font-size:14px; font-weight:400; }
.lib-form h3 { margin:18px 0 6px; font-size:14px; }
.lib-form .form-actions { padding:0; margin:4px 0 0; }
.lib-radio legend { color:var(--ink-2); font-size:13px; font-weight:500; }

/* Item page */
.lib-item { max-width:960px; }
.lib-item .lib-crumbs { margin:0 0 10px; }
.lib-item-head { display:flex; align-items:flex-start; justify-content:space-between; gap:16px; flex-wrap:wrap; }
.lib-item-title { margin:0; font-size:var(--text-h1); line-height:1.25; overflow-wrap:anywhere; border-radius:8px; }
.lib-item-title[data-lib-rename] { cursor:text; }
.lib-item-title[data-lib-rename]:hover { background:var(--hover); }
.lib-item-title-input { font-size:22px; font-weight:600; min-width:min(420px,100%); }
.lib-item-actions { display:flex; flex-wrap:wrap; gap:8px; }
.lib-item-meta { margin:8px 0 20px; }
.lib-preview { border:1px solid var(--line); border-radius:14px; padding:20px; background:var(--panel); overflow:auto; max-height:70vh; }
.lib-preview .file-preview-text { margin:0; white-space:pre-wrap; overflow-wrap:anywhere; }
.lib-frame { width:100%; height:60vh; border:0; background:#fff; border-radius:8px; }
.lib-image { display:block; max-width:100%; height:auto; margin:0 auto; border-radius:8px; }
.lib-versions { margin-top:24px; }
.lib-versions ol { list-style:none; margin:0; padding:0; }
.lib-versions li { display:flex; gap:12px; align-items:baseline; padding:8px 0; border-bottom:1px solid var(--line); }

/* Chat: Save to Library control and chip */
.lib-save { display:inline-flex; align-items:center; gap:2px; position:relative; }
.lib-save[hidden] { display:none; }
.lib-save-more { position:relative; }
.lib-save-more > summary { list-style:none; min-width:30px; justify-content:center; padding:0 6px; }
.lib-save-more > summary::-webkit-details-marker { display:none; }
.lib-save-more > summary svg { width:14px; height:14px; }
.lib-save-more .library-option-actions { right:0; min-width:170px; }
.lib-saved-chip { display:inline-flex; align-items:center; gap:6px; padding:4px 10px; border-radius:999px; background:var(--quiet); color:var(--ink-2); font-size:13px; }
.lib-saved-chip svg { width:14px; height:14px; color:var(--ink); }
.lib-saved-chip a, .lib-chip-link { color:var(--ink); font-weight:600; text-decoration:none; border:0; background:transparent; font:inherit; padding:0; cursor:pointer; }
.lib-saved-chip a:hover, .lib-chip-link:hover { text-decoration:underline; }
.lib-save-reply .msg-action { width:100%; }
.lib-save-moved { display:flex; margin:6px 0 0; }

/* B2-1: search, New in Library, previews */
.lib-scope { display:inline-flex; gap:2px; padding:2px; border-radius:10px; background:var(--quiet); flex:none; }
.lib-scope button { border:0; background:transparent; color:var(--ink-2); font:inherit; font-size:13px; padding:5px 10px; border-radius:8px; cursor:pointer; white-space:nowrap; }
.lib-scope button[aria-pressed="true"] { background:var(--panel); color:var(--ink); font-weight:600; box-shadow:0 1px 2px rgba(0,0,0,.08); }
.collection-toolbar .collection-search + .lib-scope { margin-left:8px; }
.lib-hit .lib-snippet { margin:4px 0 2px; color:var(--ink-2); font-size:13px; line-height:1.5; overflow-wrap:anywhere; }
.lib-badge { margin-left:auto; min-width:20px; height:20px; padding:0 6px; border-radius:999px; background:var(--ink); color:var(--panel); font-size:11px; font-weight:700; display:inline-grid; place-items:center; }
.lib-new-bar { display:flex; justify-content:flex-end; margin:0 0 12px; }
.lib-feed-list { display:flex; flex-direction:column; }
.lib-feed-row { display:flex; align-items:flex-start; gap:10px; padding:10px 8px; border-bottom:1px solid var(--line); color:var(--ink); text-decoration:none; border-radius:8px; }
.lib-feed-row:hover { background:var(--hover); }
.lib-feed-row .lib-feed-copy { display:flex; flex-direction:column; min-width:0; gap:2px; }
.lib-upload-files { padding:0; list-style:none; }
.lib-upload-files li { display:flex; align-items:center; gap:12px; margin:8px 0; }
.lib-upload-files li span { flex:1; min-width:0; overflow-wrap:anywhere; }
.lib-upload-files li button { flex-shrink:0; }
.lib-feed-row strong { overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.lib-feed-row small { color:var(--ink-3); overflow-wrap:anywhere; }
.lib-feed-row:not(.unread) strong { font-weight:500; color:var(--ink-2); }
.lib-feed-dot { flex:none; width:8px; height:8px; margin-top:7px; border-radius:50%; background:var(--ink); }
.lib-feed-row:not(.unread) { padding-left:26px; }
.lib-outline { list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:10px; }
.lib-outline li { display:flex; gap:12px; padding:12px; border:1px solid var(--line); border-radius:10px; }
.lib-outline p { margin:4px 0 0; color:var(--ink-2); }
.lib-slide-n { flex:none; width:26px; height:26px; border-radius:8px; background:var(--quiet); display:grid; place-items:center; font-size:12px; font-weight:700; color:var(--ink-2); }
.lib-doc-frame { background:#fff; }
.lib-pdf { height:70vh; }

@media (max-width: 900px) {
  .lib-layout { grid-template-columns:minmax(0,1fr); gap:0; }
  .lib-rail { display:none; }
  .lib-switcher { display:inline-flex; align-items:center; gap:6px; margin:0 0 12px; }
  .lib-switcher svg { width:14px; height:14px; }
  /* The switcher already names the space or view at its root. */
  .lib-head .lib-crumbs:has(> .lib-crumb:only-child) { display:none; }
  .lib-head { min-height:0; }
}
@media (max-width: 600px) {
  .lib-crumbs:not(.expanded) .lib-crumb-mid { display:none; }
  .lib-crumbs:not(.expanded) .lib-crumb-mid + .lib-crumb-sep { display:none; }
  .lib-crumbs:not(.expanded) .lib-crumb-more, .lib-crumbs:not(.expanded) .lib-crumb-more + .lib-crumb-sep { display:inline; }
  .lib-crumb { max-width:140px; }
  .collection-toolbar .collection-search + .lib-scope { margin-left:0; }
  .lib-head { flex-wrap:wrap; }
  .lib-item-title { font-size:21px; }
  .lib-item-actions { width:100%; }
  .lib-preview { padding:14px; }
}

/* Keep complete authorized source names inside the preview metadata row. */
.lib-preview-meta { overflow-wrap:anywhere; }