/* La Biblioteca: la cabecera y las pestañas de Codex, la cuadrícula en mampostería (las imágenes con su proporción y los
   documentos como tarjeta con su ícono), la lista, las carpetas, los menús y el diálogo. Solo tokens de temas.css;
   responsive a 390, 834 y escritorio. */
#view-biblioteca{overflow:auto}
.bib{max-width:1600px;margin:0 auto;padding:30px 40px 56px;color:var(--text)}
.bib-cabecera{position:relative;display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:22px}
.bib-titulo{margin:0;font-size:28px;font-weight:600;letter-spacing:-.01em;color:var(--text-strong)}
.bib-herramientas{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.bib-icono-boton{position:relative;display:inline-grid;place-items:center;width:38px;height:38px;padding:0;border:0;border-radius:12px;background:transparent;color:var(--muted);cursor:pointer;
  transition:background .15s,color .15s}
.bib-icono-boton svg{width:18px;height:18px}
.bib-icono-boton:hover,.bib-icono-boton.activa,.bib-icono-boton[aria-expanded="true"]{background:rgba(var(--fg-rgb),.08);color:var(--text-strong)}
.bib-icono-boton:focus-visible,.bib-pestana:focus-visible,.bib-nuevo:focus-visible,.bib-tarjeta:focus-visible,.bib-carpeta:focus-visible,.bib-fila:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.bib-insignia{position:absolute;top:3px;right:3px;min-width:15px;height:15px;padding:0 4px;border-radius:999px;background:var(--accent);color:var(--on-accent);font-size:10px;font-weight:700;line-height:15px}
.bib-segmento{display:inline-flex;gap:2px;padding:2px;border-radius:14px;background:rgba(var(--fg-rgb),.04)}
.bib-buscar{display:flex;align-items:center;gap:8px;width:min(300px,34vw);height:40px;padding:0 14px;border:1px solid var(--line);border-radius:999px;background:rgba(var(--panel-rgb),.6);color:var(--muted)}
.bib-buscar:focus-within{border-color:rgba(var(--accent-rgb),.6)}
.bib-buscar svg{flex:none;width:16px;height:16px}
.bib-buscar input{flex:1;min-width:0;border:0;outline:0;background:transparent;color:var(--text-strong);font:inherit;font-size:14px}
.bib-buscar input::placeholder{color:var(--muted)}
.bib-nuevo{display:inline-flex;align-items:center;gap:6px;height:40px;padding:0 16px;border:0;border-radius:999px;background:var(--text-strong);color:var(--bg);font:inherit;font-size:14px;font-weight:600;cursor:pointer}
.bib-nuevo svg{width:15px;height:15px}
.bib-nuevo:hover{opacity:.9}
.bib-oculto{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
/* Paneles de filtros y de vista */
.bib-panel{position:absolute;top:calc(100% + 8px);right:0;z-index:20;display:grid;gap:12px;width:min(300px,calc(100vw - 32px));padding:14px;border:1px solid var(--line);border-radius:16px;
  background:var(--panel);box-shadow:var(--shadow)}
.bib-panel[hidden]{display:none}
.bib-panel label{display:grid;gap:6px;color:var(--muted);font-size:12px;font-weight:600}
.bib-panel select{width:100%}
.bib-panel-titulo{color:var(--muted);font-size:12px;font-weight:600}
.bib-segmento-texto button{flex:1;padding:7px 10px;border:0;border-radius:11px;background:transparent;color:var(--muted);font:inherit;font-size:13px;cursor:pointer}
.bib-segmento-texto button.activa{background:rgba(var(--fg-rgb),.1);color:var(--text-strong)}
/* Pestañas (píldoras) */
.bib-pestanas{display:flex;gap:6px;margin-bottom:26px;overflow-x:auto;scrollbar-width:none}
.bib-pestanas::-webkit-scrollbar{display:none}
.bib-pestana{display:inline-flex;align-items:center;gap:8px;flex:none;padding:9px 18px;border:0;border-radius:999px;background:transparent;color:var(--muted);font:inherit;font-size:15px;font-weight:500;cursor:pointer;
  transition:background .15s,color .15s}
.bib-pestana:hover{color:var(--text-strong)}
.bib-pestana.activa{background:rgba(var(--fg-rgb),.08);color:var(--text-strong)}
.bib-cuenta{min-width:20px;padding:1px 7px;border-radius:999px;background:rgba(var(--fg-rgb),.07);color:var(--muted);font-size:12px;font-weight:600}
/* La cuadrícula en mampostería */
.bib-contenido{--bib-columnas:5;min-height:240px}
.bib-cuadricula{column-count:var(--bib-columnas);column-gap:18px}
.bib-tarjeta{position:relative;display:block;break-inside:avoid;margin:0 0 18px;overflow:hidden;border:1px solid var(--line);border-radius:14px;background:var(--panel);cursor:pointer;
  animation:bib-entra .32s ease both;transition:border-color .15s,transform .15s}
.bib-tarjeta:hover{border-color:var(--line-2);transform:translateY(-1px)}
.bib-con-imagen img{display:block;width:100%;height:auto;min-height:80px;background:rgba(var(--fg-rgb),.04)}
.bib-play{position:absolute;top:50%;left:50%;display:grid;place-items:center;width:46px;height:46px;border-radius:50%;background:rgba(var(--bg-rgb),.6);color:var(--text-strong);
  transform:translate(-50%,-50%);backdrop-filter:blur(6px)}
.bib-play svg{width:20px;height:20px;margin-left:2px}
.bib-pie{position:absolute;inset:auto 0 0 0;display:flex;align-items:flex-end;justify-content:space-between;gap:8px;padding:28px 12px 10px;
  background:linear-gradient(to top,rgba(var(--bg-rgb),.88),rgba(var(--bg-rgb),0));opacity:0;transition:opacity .15s}
.bib-con-imagen:hover .bib-pie,.bib-con-imagen:focus-visible .bib-pie{opacity:1}
.bib-nombre{min-width:0;overflow:hidden;color:var(--text-strong);font-size:14px;font-weight:500;text-overflow:ellipsis;white-space:nowrap}
.bib-meta{flex:none;color:var(--muted);font-size:12px}
.bib-acciones{position:absolute;top:8px;right:8px;z-index:2;display:flex;gap:4px;opacity:0;transition:opacity .15s}
.bib-acciones .bib-icono-boton{width:32px;height:32px;border-radius:10px;background:rgba(var(--bg-rgb),.66);color:var(--text-strong);backdrop-filter:blur(6px)}
.bib-acciones .bib-icono-boton svg{width:15px;height:15px}
.bib-tarjeta:hover .bib-acciones,.bib-tarjeta:focus-within .bib-acciones,.bib-acciones .es-favorito{opacity:1}
.bib-tarjeta .bib-acciones:has(.es-favorito){opacity:1}
.bib-icono-boton.es-favorito{color:var(--warn)}
.bib-icono-boton.es-favorito svg{fill:currentColor}
/* Documentos: encabezado con su ícono y nombre, y el ícono grande en medio (como Codex) */
.bib-doc{display:flex;flex-direction:column;min-height:280px;background:var(--panel-2)}
.bib-doc-cab{display:flex;align-items:center;gap:10px;min-height:56px;padding:12px 84px 12px 14px;border-bottom:1px solid var(--line)}
.bib-doc-tipo{display:grid;flex:none;place-items:center}
.bib-doc-tipo svg{width:18px;height:18px}
.bib-doc-cuerpo{flex:1;display:grid;place-content:center;justify-items:center;gap:8px;padding:28px 12px}
.bib-doc-grande svg{width:54px;height:54px;stroke-width:1.6}
.bib-doc-etiqueta{color:var(--muted);font-size:12px;font-weight:600;letter-spacing:.02em}
.bib-doc-fecha{position:absolute;right:12px;bottom:10px}
.bib-doc[data-tono="danger"] .bib-doc-tipo,.bib-doc[data-tono="danger"] .bib-doc-grande,.bib-mini-icono[data-tono="danger"]{color:var(--danger)}
.bib-doc[data-tono="ok"] .bib-doc-tipo,.bib-doc[data-tono="ok"] .bib-doc-grande,.bib-mini-icono[data-tono="ok"]{color:var(--ok)}
.bib-doc[data-tono="info"] .bib-doc-tipo,.bib-doc[data-tono="info"] .bib-doc-grande,.bib-mini-icono[data-tono="info"]{color:var(--info)}
.bib-doc[data-tono="warn"] .bib-doc-tipo,.bib-doc[data-tono="warn"] .bib-doc-grande,.bib-mini-icono[data-tono="warn"]{color:var(--warn)}
.bib-doc[data-tono="accent"] .bib-doc-tipo,.bib-doc[data-tono="accent"] .bib-doc-grande,.bib-mini-icono[data-tono="accent"]{color:var(--accent-2)}
.bib-doc[data-tono="muted"] .bib-doc-tipo,.bib-doc[data-tono="muted"] .bib-doc-grande,.bib-mini-icono[data-tono="muted"]{color:var(--muted)}
.bib-sin-imagen{min-height:200px}
/* La lista */
.bib-lista{display:grid;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:rgba(var(--panel-rgb),.5)}
.bib-fila{display:grid;grid-template-columns:minmax(0,2.6fr) minmax(0,1fr) minmax(0,1.1fr) minmax(0,.9fr) minmax(0,.7fr) 80px;align-items:center;gap:12px;padding:8px 14px;
  border-top:1px solid var(--line);cursor:pointer}
.bib-fila:first-child{border-top:0}
.bib-fila:hover{background:rgba(var(--fg-rgb),.04)}
.bib-fila-cab{cursor:default;color:var(--muted);font-size:12px;font-weight:600;background:transparent}
.bib-fila-cab:hover{background:transparent}
.bib-fila-nombre{display:flex;align-items:center;gap:12px;min-width:0}
.bib-mini{display:grid;flex:none;place-items:center;width:40px;height:40px;overflow:hidden;border-radius:10px;background:rgba(var(--fg-rgb),.05)}
.bib-mini img{width:100%;height:100%;object-fit:cover}
.bib-mini-icono svg{width:18px;height:18px}
.bib-fila .bib-acciones{position:static;opacity:1;justify-content:flex-end}
.bib-fila .bib-acciones .bib-icono-boton{background:transparent;color:var(--muted)}
.bib-fila .bib-acciones .es-favorito{color:var(--warn)}
/* Carpetas */
.bib-subtitulo{margin:4px 0 12px;color:var(--muted);font-size:13px;font-weight:600}
.bib-carpetas{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:18px;margin-bottom:28px}
.bib-carpeta{display:flex;flex-direction:column;gap:10px;padding:10px;border:1px solid var(--line);border-radius:16px;background:var(--panel);color:inherit;font:inherit;text-align:left;cursor:pointer;
  transition:border-color .15s,transform .15s}
.bib-carpeta:hover{border-color:var(--line-2);transform:translateY(-1px)}
.bib-collage{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:3px;aspect-ratio:4/3;overflow:hidden;border-radius:11px;background:rgba(var(--fg-rgb),.05)}
.bib-collage img{width:100%;height:100%;object-fit:cover}
.bib-collage[data-n="1"] img{grid-column:1/3;grid-row:1/3}
.bib-collage[data-n="2"] img{grid-row:1/3}
.bib-collage[data-n="3"] img:first-child{grid-row:1/3}
.bib-collage-vacio{grid-column:1/3;grid-row:1/3;display:grid;place-items:center;color:var(--muted)}
.bib-collage-vacio svg{width:34px;height:34px}
.bib-carpeta-pie{display:flex;flex-direction:column;gap:2px;padding:0 4px 2px}
.bib-migas{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:-8px 0 20px;color:var(--muted)}
.bib-migas strong{color:var(--text-strong);font-weight:600}
.bib-migas-acciones{display:flex;gap:6px;margin-left:auto}
.bib-boton-texto{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border:0;border-radius:10px;background:transparent;color:var(--muted);font:inherit;font-size:13px;cursor:pointer}
.bib-boton-texto svg{width:15px;height:15px}
.bib-boton-texto:hover{background:rgba(var(--fg-rgb),.06);color:var(--text-strong)}
.bib-peligro:hover{color:var(--danger)}
/* Estados vacíos, carga y botones */
.bib-vacio{display:grid;justify-items:center;gap:8px;max-width:420px;margin:60px auto;text-align:center}
.bib-vacio-icono{display:grid;place-items:center;width:58px;height:58px;margin-bottom:6px;border-radius:18px;background:rgba(var(--accent-rgb),.12);color:var(--accent-2)}
.bib-vacio-icono svg{width:26px;height:26px}
.bib-vacio h3{margin:0;color:var(--text-strong);font-size:17px}
.bib-vacio p{margin:0 0 6px;color:var(--muted);font-size:14px;line-height:1.5}
.bib-boton{padding:9px 16px;border:1px solid var(--line);border-radius:999px;background:transparent;color:var(--text-strong);font:inherit;font-size:14px;cursor:pointer}
.bib-boton:hover{background:rgba(var(--fg-rgb),.06)}
.bib-primario{border-color:transparent;background:var(--accent);color:var(--on-accent)}
.bib-primario:hover{background:var(--accent);opacity:.9}
.bib-mas{margin:10px 0 0;color:var(--muted);font-size:13px;text-align:center}
.bib-cargando{column-count:var(--bib-columnas,5);column-gap:18px}
.bib-cargando span{display:block;break-inside:avoid;height:calc(170px + (var(--i) * 37px % 140px));margin-bottom:18px;border-radius:14px;
  background:linear-gradient(100deg,rgba(var(--fg-rgb),.04) 30%,rgba(var(--fg-rgb),.09) 50%,rgba(var(--fg-rgb),.04) 70%);background-size:250% 100%;animation:bib-brillo 1.4s ease-in-out infinite}
@keyframes bib-brillo{from{background-position:120% 0}to{background-position:-120% 0}}
@keyframes bib-entra{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
/* Menú por elemento y diálogo */
.bib-menu{position:fixed;z-index:1200;display:grid;min-width:230px;max-height:min(70vh,440px);overflow:auto;padding:6px;border:1px solid var(--line);border-radius:14px;background:var(--panel);box-shadow:var(--shadow)}
.bib-menu button{display:flex;align-items:center;gap:10px;padding:9px 10px;border:0;border-radius:9px;background:transparent;color:var(--text);font:inherit;font-size:14px;text-align:left;cursor:pointer}
.bib-menu button svg{flex:none;width:16px;height:16px;color:var(--muted)}
.bib-menu button:hover,.bib-menu button:focus-visible{background:rgba(var(--fg-rgb),.07);color:var(--text-strong);outline:0}
.bib-menu-titulo{padding:8px 10px 4px;color:var(--muted);font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase}
.bib-menu hr{width:100%;margin:5px 0;border:0;border-top:1px solid var(--line)}
.bib-dialogo{margin:auto;width:min(400px,calc(100vw - 32px));padding:0;border:1px solid var(--line);border-radius:18px;background:var(--panel);color:var(--text);box-shadow:var(--shadow)}
.bib-dialogo::backdrop{background:var(--scrim)}
.bib-dialogo form{display:grid;gap:14px;padding:20px}
.bib-dialogo h3{margin:0;color:var(--text-strong);font-size:17px}
.bib-dialogo input{height:42px;padding:0 14px;border:1px solid var(--line);border-radius:12px;background:rgba(var(--bg-rgb),.4);color:var(--text-strong);font:inherit}
.bib-dialogo input:focus{border-color:rgba(var(--accent-rgb),.6);outline:0}
.bib-dialogo-botones{display:flex;justify-content:flex-end;gap:8px}
/* Tableta */
@media (max-width:900px){
  .bib{padding:22px 22px 48px}
  .bib-fila{grid-template-columns:minmax(0,2.4fr) minmax(0,1fr) minmax(0,.9fr) 76px}
  .bib-fila>:nth-child(3),.bib-fila>:nth-child(5){display:none}
}
/* Teléfono: la cabecera en dos filas, buscar a todo el ancho, acciones siempre a la vista */
@media (max-width:600px){
  .bib{padding:16px 16px 40px}
  .bib-cabecera{flex-wrap:wrap;margin-bottom:16px}
  .bib-titulo{font-size:24px}
  .bib-herramientas{width:100%;justify-content:space-between;gap:6px}
  .bib-buscar{order:5;width:100%}
  .bib-pestanas{margin:0 -16px 18px;padding:0 16px}
  .bib-pestana{padding:8px 14px;font-size:14px}
  .bib-cuadricula,.bib-cargando{column-gap:12px}
  .bib-tarjeta{margin-bottom:12px}
  .bib-acciones{opacity:1}
  .bib-pie{opacity:1;padding-top:22px}
  .bib-doc{min-height:220px}
  .bib-doc-cab{padding-right:14px}
  .bib-doc .bib-acciones{top:auto;bottom:6px;right:6px}   /* en el teléfono, abajo: el nombre del documento queda a la vista */
  .bib-doc-fecha{right:auto;left:12px}
  .bib-doc .bib-nombre{white-space:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
  .bib-carpetas{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .bib-fila{grid-template-columns:minmax(0,1fr) 76px}
  .bib-fila>:nth-child(2),.bib-fila>:nth-child(4){display:none}
  .bib-fila-cab{display:none}
}
@media (prefers-reduced-motion:reduce){
  .bib-tarjeta,.bib-carpeta{animation:none;transition:none}
  .bib-tarjeta:hover,.bib-carpeta:hover{transform:none}
  .bib-cargando span{animation:none}
}