/* =====================================================================
   Pixelario · Biblioteca (explorar.html)
   Cabecera con buscador grande → estanterías (solo sin filtros) → biblioteca con
   filtros a la izquierda (en móvil y tableta, en una hoja) y resultados a la derecha.
   ===================================================================== */

.lib { padding-bottom: 72px; }

/* ---------- cabecera ---------- */
.lib-head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 18px 40px; align-items: end; padding-block: clamp(28px, 5vw, 60px) 26px; }
.lib-title { display: grid; gap: 10px; justify-items: start; min-width: 0; }
.lib-title h1 { margin: 0; font: 800 var(--fs-h1)/var(--lh-tight) var(--display); letter-spacing: var(--tr-display); font-variation-settings: "opsz" 96; text-wrap: balance; }
.lib-dot { display: inline-block; width: .2em; height: .2em; margin-left: .06em; background: var(--spark); border-radius: 3px 1px 3px 3px; }
.lib-sum { margin: 0; color: var(--muted); font-size: var(--fs-md); min-height: 1.5em; }
.lib-sum b { color: var(--fg); font-weight: 600; font-family: var(--mono); font-size: .92em; }
.lib-search { display: flex; gap: 8px; min-width: 0; }
.lib-search .input-wrap { flex: 1; }
.input-lg { height: 48px; font-size: var(--fs-md); }
.lib-search .input-lg { padding-left: 42px; border-radius: 14px 4px 14px 14px; }
.lib-search .input-wrap > .ico:first-child { left: 14px; }
.lib-search .end .kbd { pointer-events: none; }
.lib-search .input-wrap:focus-within .end { display: none; }
.lib-cats { grid-column: 1 / -1; display: flex; gap: 6px; overflow-x: auto; scrollbar-width: none; padding: 4px 2px; margin-inline: -2px; mask-image: linear-gradient(90deg, #000 92%, transparent); }
.lib-cats::-webkit-scrollbar { display: none; }
.lib-cats .chip { flex: none; }

/* ---------- estanterías ---------- */
.lib-shelves { display: grid; gap: 44px; }
.lib-shelves:empty { display: none; }
.shelf { display: grid; gap: 14px; min-width: 0; }
.shelf-h { display: flex; align-items: flex-end; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.shelf-h h2 { margin: 0; font: 800 var(--fs-h3)/1 var(--display); letter-spacing: -.035em; font-variation-settings: "opsz" 96; display: flex; align-items: center; gap: 10px; }
.shelf-h h2 .n { font: 500 var(--fs-2xs) var(--mono); color: var(--muted); letter-spacing: 0; }
.shelf-h p { margin: 4px 0 0; font-size: var(--fs-xs); color: var(--muted); }
.shelf-h .lnk { font-size: var(--fs-sm); color: var(--fg); text-decoration: none; display: inline-flex; align-items: center; gap: 6px; min-height: 32px; border-bottom: 1px solid var(--line-2); }
.shelf-h .lnk:hover { border-color: var(--spark); }
.shelf-row { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(232px, 1fr); gap: 16px; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 8px; scrollbar-width: thin; scrollbar-color: var(--line-2) transparent; }
.shelf-row > * { scroll-snap-align: start; }
.shelf-feat .shelf-row { grid-auto-columns: minmax(300px, 1fr); }
@media (min-width: 1100px) { .shelf-row { grid-auto-columns: calc((100% - 48px) / 4); } .shelf-feat .shelf-row { grid-auto-columns: calc((100% - 32px) / 3); } }
.shelf-feat { padding: 20px; margin-inline: -20px; border-radius: var(--shape-xl); background: radial-gradient(120% 140% at 0% 0%, color-mix(in oklab, var(--indigo-500) 16%, transparent), transparent 60%), var(--surface); border: var(--bw) solid var(--line); }

/* ---------- biblioteca ---------- */
.lib-body { display: grid; grid-template-columns: 264px minmax(0, 1fr); gap: 36px; align-items: start; margin-top: 52px; scroll-margin-top: 88px; }
.lib-side { position: sticky; top: calc(80px + env(safe-area-inset-top, 0px)); max-height: calc(100vh - 100px); overflow: auto; overscroll-behavior: contain; padding-right: 6px; scrollbar-width: thin; scrollbar-color: var(--line-2) transparent; }
.lib-f { display: grid; gap: 4px; }
.lib-f-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: 6px; }
.lib-f-head h2 { margin: 0; font: 700 var(--fs-md) var(--body); }
.fg { border: 0; margin: 0; padding: 14px 0; border-top: var(--bw) solid var(--line); min-width: 0; display: grid; gap: 10px; }
.fg legend, .fg-l { padding: 0; font: 600 var(--fs-2xs)/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); float: left; width: 100%; margin-bottom: 10px; }
.fg-l { float: none; margin: 0; }
.fg legend + * { clear: both; }
.lib-f .switch.fg { border: 0; border-top: var(--bw) solid var(--line); border-radius: 0; background: none; padding: 14px 0; }
.opts { display: flex; flex-wrap: wrap; gap: 6px; }
.opt { position: relative; display: inline-flex; }
.opt input { position: absolute; inset: 0; opacity: 0; margin: 0; cursor: pointer; }
.opt span { display: inline-flex; align-items: center; min-height: 32px; padding: 0 11px; font-size: var(--fs-xs); color: var(--muted); border: var(--bw) solid var(--line-2); border-radius: 9px 3px 9px 9px; transition: background var(--dur-1), color var(--dur-1), border-color var(--dur-1); }
.opt:hover span { color: var(--fg); border-color: var(--line-3); }
.opt input:checked + span { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.opt input:focus-visible + span { outline: 2px solid var(--spark); outline-offset: 2px; }
.opt .n { margin-left: 6px; font: 500 10px var(--mono); opacity: .7; }
.checks { display: grid; gap: 10px; }
.lib-slots { gap: 5px; }
.lib-slots .slot { min-width: 0; flex: 1 1 44px; height: 46px; padding: 4px; }
.lib-slots .slot b { font-size: var(--fs-sm); }

.lib-main { min-width: 0; display: grid; gap: 14px; }
.lib-bar { display: flex; align-items: center; justify-content: space-between; gap: 10px 14px; flex-wrap: wrap; }
.lib-bar-t { display: flex; align-items: baseline; gap: 12px; min-width: 0; }
.lib-bar-t h2 { margin: 0; font: 800 var(--fs-h3)/1 var(--display); letter-spacing: -.035em; font-variation-settings: "opsz" 96; }
.lib-bar-t .pg-count { margin: 0; }
.lib-bar-c { display: flex; gap: 8px; align-items: center; }
.select-sm { height: 36px; width: auto; font-size: var(--fs-xs); padding-right: 32px; }
.lib-fbtn { display: none; }
.lib-fbtn .counter { margin-left: 2px; }
.lib-active { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.lib-active:empty { display: none; }
.lib-active .chip { background: var(--surface-2); color: var(--fg); border-color: var(--line-2); padding-right: 4px; }
.lib-active .chip .x { margin-right: 0; background: var(--surface-4, var(--surface-3)); }
.lib-active .chip .x:hover { background: var(--line-3); }
.lib-active .clear { font-size: var(--fs-xs); color: var(--muted); background: none; border: 0; text-decoration: underline; text-underline-offset: 3px; cursor: pointer; min-height: 32px; padding: 0 6px; }
.lib-active .clear:hover { color: var(--fg); }
.lib-grid { grid-template-columns: repeat(auto-fill, minmax(228px, 1fr)); gap: 26px 18px; }
.lib-grid > .state, .lib-grid > .lib-empty { grid-column: 1 / -1; }
.lib-grid.is-busy > .card { opacity: .55; transition: opacity var(--dur-2); }
.lib-more { display: grid; justify-items: center; gap: 12px; margin-top: 18px; }
.lib-prog { margin: 0; font-size: var(--fs-2xs); color: var(--muted); }
#sentinel { display: block; height: 1px; width: 100%; }

/* esqueleto de tarjeta */
.pk-skel { display: grid; gap: 10px; }
.pk-skel .skel:first-child { aspect-ratio: 16 / 9; border-radius: var(--shape-lg); }

/* ---------- estado vacío: invitación a publicar el primer pack ---------- */
.lib-empty { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 28px; align-items: center; padding: clamp(24px, 4vw, 44px); border-radius: var(--shape-xl); border: var(--bw) dashed var(--line-2); background: repeating-linear-gradient(0deg, transparent 0 23px, color-mix(in oklab, var(--line) 60%, transparent) 23px 24px), repeating-linear-gradient(90deg, transparent 0 23px, color-mix(in oklab, var(--line) 60%, transparent) 23px 24px), var(--bg); }
.lib-empty .slotgrid { display: grid; grid-template-columns: repeat(3, 44px); gap: 6px; }
.lib-empty .slotgrid i { width: 44px; height: 44px; border-radius: 9px 3px 9px 9px; background: var(--surface); box-shadow: inset 0 2px 0 rgba(0, 0, 0, .35), 0 0 0 1px var(--line); }
.lib-empty .slotgrid i.on { background: color-mix(in oklab, var(--spark) 18%, var(--surface)); box-shadow: inset 0 2px 0 rgba(0, 0, 0, .3), 0 0 0 2px var(--spark); animation: slot-pulse 2.4s var(--ease) infinite; }
@keyframes slot-pulse { 50% { box-shadow: inset 0 2px 0 rgba(0, 0, 0, .3), 0 0 0 2px var(--spark), 0 0 22px color-mix(in oklab, var(--spark) 50%, transparent); } }
.lib-empty h3 { margin: 0 0 8px; font: 800 var(--fs-h3)/1.05 var(--display); letter-spacing: -.035em; text-wrap: balance; }
.lib-empty p { margin: 0 0 18px; color: var(--muted); max-width: 52ch; }
.lib-empty .acts { display: flex; flex-wrap: wrap; gap: 8px; }
.lib-empty ol { margin: 0 0 18px; padding: 0; list-style: none; display: grid; gap: 6px; counter-reset: s; font-size: var(--fs-sm); }
.lib-empty ol li { counter-increment: s; display: flex; gap: 10px; align-items: baseline; }
.lib-empty ol li::before { content: counter(s); font: 600 var(--fs-2xs) var(--mono); color: var(--spark); width: 16px; }
@media (prefers-reduced-motion: reduce) { .lib-empty .slotgrid i.on { animation: none; } }

/* ---------- tableta y móvil: filtros en hoja ---------- */
@media (max-width: 1023px) {
  .lib-head { grid-template-columns: 1fr; align-items: start; }
  .lib-body { grid-template-columns: 1fr; margin-top: 40px; }
  .lib-side { display: none; }
  .lib-fbtn { display: inline-flex; }
  #fDlg { width: min(560px, calc(100vw - 24px)); max-height: 88vh; }
  #fDlg .modal-body { gap: 0; padding-top: 4px; }
  #fDlg .lib-f-head { display: none; }
  #fDlg .fg:first-child { border-top: 0; }
}
@media (max-width: 560px) {
  .lib-search .btn { display: none; }
  .lib-search .input-lg { border-radius: 12px 4px 12px 12px; }
  .shelf-row { grid-auto-columns: 78%; }
  .shelf-feat { padding: 16px; margin-inline: -8px; }
  .shelf-feat .shelf-row { grid-auto-columns: 86%; }
  .lib-grid { grid-template-columns: 1fr 1fr; gap: 20px 12px; }
  .lib-grid .pkc .pk-tags { display: none; }
  .lib-grid .pkc .pk-vr { display: none; }
  .lib-grid .pkc h3 { font-size: var(--fs-sm); }
  .lib-bar-t h2 { font-size: var(--fs-lg); }
  .lib-empty { grid-template-columns: 1fr; }
  .lib-empty .slotgrid { grid-template-columns: repeat(3, 34px); }
  .lib-empty .slotgrid i { width: 34px; height: 34px; }
  #fDlg { width: 100vw; max-height: 92vh; }
}
@media (max-width: 380px) { .lib-grid { grid-template-columns: 1fr; } }
.lib-shelves[hidden] { display: none; }
/* biblioteca vacía: sin filtros ni orden que no filtrarían nada */
.lib-body.is-void { grid-template-columns: 1fr; }
.lib-body.is-void .lib-side, .lib-body.is-void .lib-bar-c, .lib-body.is-void .lib-active { display: none; }
/* El recuadro de destacados sobresale del margen solo cuando hay sitio para ello */
@media (max-width: 1299px) { .shelf-feat { margin-inline: 0; padding: 16px; } }
/* Ediciones abreviadas (JE / BE) en tarjetas estrechas */
.pkc .ed-s { display: none; }
@media (max-width: 560px) { .lib-grid .pkc .ed-l, .shelf-row .pkc .ed-l { display: none; } .lib-grid .pkc .ed-s, .shelf-row .pkc .ed-s { display: inline; } }
.lib-bar-t { flex: 1 1 auto; }