/* UltraPAES · Biblioteca con la opción 6 y los anillos de la opción 5 (spec docs/superpowers/specs/2026-10-09-biblioteca-op6-design.md).
   Solo variables del tema de app/ultra.css, ningún texto bajo 12 px y 44 px en todo lo que se toca. Primero el celular; el
   computador va en el bloque de 901 px del final. */
.u-bib { --bib-radio: 14px; }
.u-bib .u-bib-sec { margin: 28px 0 10px; font-size: 22px; line-height: 1.2; font-weight: 800; letter-spacing: -0.01em; }

/* Encabezado */
.u-bib-cab { display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: space-between; gap: 10px 12px; }
.u-bib-cab h1 { margin: 0; font-size: 34px; line-height: 1.1; font-weight: 800; letter-spacing: -0.02em; }
.u-bib-avance { margin: 6px 0 0; color: var(--ink-2); font-size: 15px; }
.u-bib .u-bib-dias { flex: none; margin-top: 4px; font-size: 13px; }

/* Anillos */
.u-bib-anillos { display: flex; align-items: center; gap: 18px; margin-top: 18px; padding: 16px; border-radius: var(--bib-radio); background: var(--surface); }
.u-bib-anillos-svg { width: 112px; height: 112px; flex: none; }
.u-bib-ley { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; flex: 1; min-width: 0; }
.u-bib-ley li { display: grid; grid-template-columns: 10px minmax(0, 1fr); column-gap: 8px; align-items: center; }
.u-bib-ley li::before { content: ""; width: 10px; height: 10px; border-radius: 50%; background: var(--ring-1); }
.u-bib-ley li.is-2::before { background: var(--ring-2); }
.u-bib-ley li.is-3::before { background: var(--ring-3); }
.u-bib-ley span { color: var(--ink-2); font-size: 13px; }
.u-bib-ley b { grid-column: 2; font-size: 17px; font-weight: 800; color: var(--ring-1-text); }
.u-bib-ley li.is-2 b { color: var(--ring-2-text); }
.u-bib-ley li.is-3 b { color: var(--ring-3-text); }

/* Tu próximo ensayo */
.u-bib-hero { display: grid; gap: 12px; padding: 16px; border-radius: var(--bib-radio); background: var(--surface); }
.u-bib-hero-arriba { display: flex; gap: 14px; align-items: flex-start; }
.u-bib-hero-txt { min-width: 0; }
.u-bib-hero-etq { display: flex; align-items: center; gap: 6px; margin: 0; color: var(--accent-text); font-size: 15px; font-weight: 700; }
.u-bib-hero-etq svg { width: 18px; height: 18px; }
.u-bib-hero-titulo { display: grid; gap: 2px; margin: 4px 0 2px; outline: none; }
.u-bib-hero-titulo:focus-visible { outline: 2px solid var(--accent-line); outline-offset: 4px; border-radius: 6px; }
.u-bib-hero-prueba { color: var(--c); font-size: 15px; font-weight: 700; }
.u-bib-hero-nombre { font-size: 22px; line-height: 1.15; font-weight: 800; }
.u-bib-hero-meta { margin: 0; color: var(--ink-2); font-size: 15px; }
.u-bib-hero-motivo { margin: 0; font-size: 15px; }
.u-bib-hero-acciones { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.u-bib-boton { flex: 1; min-height: 50px; padding: 0 16px; border: 0; border-radius: 12px; background: var(--accent); color: var(--accent-ink); font: inherit; font-size: 17px; font-weight: 800; display: inline-flex; align-items: center; justify-content: center; gap: 8px; cursor: pointer; }
.u-bib-boton svg { width: 16px; height: 16px; }
.u-bib-barajar { flex: none; width: 50px; height: 50px; border: 0; border-radius: 12px; background: var(--accent-soft); color: var(--accent-text); display: grid; place-items: center; cursor: pointer; }
.u-bib-barajar svg { width: 20px; height: 20px; }
.u-bib-texto { min-height: 44px; padding: 0 8px; border: 0; background: none; color: var(--accent-text); font: inherit; font-size: 15px; font-weight: 700; cursor: pointer; }

/* Portada plana: la usan la tarjeta de arriba y el catálogo */
.u-bib-arte { position: relative; width: var(--w, 112px); height: calc(var(--w, 112px) * 4 / 3); padding: 10px; border-radius: 8px; background: var(--c, var(--ink-3)); color: var(--bg); display: flex; flex-direction: column; justify-content: flex-end; overflow: hidden; }
.u-bib-arte--hero { --w: 96px; flex: none; }
/* en la tarjeta la portada mide 96 px: la serie usa todo el ancho para que «GRATIS» quepa (con candado, la serie es «DEMRE», corta) */
.u-bib-arte--hero .u-bib-serie { right: 8px; }
.u-bib-serie { position: absolute; top: 10px; left: 10px; right: 36px; overflow: hidden; font-size: 12px; line-height: 1.15; font-weight: 800; letter-spacing: 0.04em; text-transform: uppercase; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.u-bib-gratis { display: inline-block; padding: 3px 7px; border-radius: 6px; background: var(--u-lime); color: var(--accent-ink); letter-spacing: 0; }
.u-bib-candado { position: absolute; top: 8px; right: 8px; width: 26px; height: 26px; border-radius: 50%; background: var(--surface); color: var(--ink); display: grid; place-items: center; }
.u-bib-candado svg { width: 14px; height: 14px; }
.u-bib-sigla { font-size: 30px; line-height: 1; font-weight: 800; letter-spacing: -0.02em; }
.u-bib-sigla.is-larga { font-size: 22px; }
.u-bib-arte--hero .u-bib-sigla.is-larga { font-size: 18px; }
.u-bib-edicion { margin-top: 4px; font-size: 13px; line-height: 1.2; font-weight: 600; }
.u-bib-arte.is-ia { background: var(--accent-ink); color: var(--u-lime); }
.u-bib-arte.is-terceros { background: var(--surface-2); color: var(--c, var(--ink)); box-shadow: inset 0 0 0 1px var(--line); }
.u-bib-hecho, .u-bib-avance-barra { position: absolute; left: 0; bottom: 0; height: 4px; }
.u-bib-hecho { right: 0; background: var(--ring-1); }
.u-bib-avance-barra { background: var(--ring-3); }

/* Continúa donde quedaste */
.u-bib-lista { padding: 2px 0; border-radius: var(--bib-radio); background: var(--surface); }
.u-bib-fila-c { display: flex; align-items: center; gap: 12px; padding: 10px 14px; }
.u-bib-fila-c + .u-bib-fila-c { border-top: 1px solid var(--line); }
.u-bib-mini { flex: none; width: 46px; height: 61px; border-radius: 6px; background: var(--c, var(--ink-3)); color: var(--bg); display: grid; place-items: center; font-size: 13px; font-weight: 800; }
.u-bib-fila-txt { flex: 1; min-width: 0; display: grid; gap: 2px; }
.u-bib-fila-txt b { overflow: hidden; font-size: 17px; font-weight: 700; text-overflow: ellipsis; white-space: nowrap; }
.u-bib-fila-txt span { color: var(--ink-2); font-size: 15px; }
.u-bib-fila-txt small { color: var(--ink-2); font-size: 13px; }
.u-bib-barra { display: block; height: 4px; margin-top: 4px; overflow: hidden; border-radius: 2px; background: var(--ring-3-track); }
.u-bib-barra i { display: block; height: 100%; background: var(--ring-3); }
.u-bib-play { flex: none; width: 44px; height: 44px; border: 0; border-radius: 50%; background: var(--accent-soft); color: var(--accent-text); display: grid; place-items: center; cursor: pointer; }
.u-bib-play svg { width: 16px; height: 16px; }

/* Nuevo en Ultra: el banner de IA de app/ultra.js con el estilo de la Biblioteca */
.u-bib .u-ia-biblioteca { display: grid; gap: 10px; margin: 0; padding: 18px 16px; overflow: visible; border: 0; border-radius: var(--bib-radio); background: var(--surface); }
.u-bib .u-ia-biblioteca > img { display: none; }
.u-bib .u-ia-biblioteca .u-eyebrow { display: block; margin: 0 0 6px; color: var(--accent-text); font-size: 12px; letter-spacing: 0.06em; }
.u-bib .u-ia-biblioteca h2 { margin: 0 0 8px; font-size: 20px; line-height: 1.2; font-weight: 800; }
.u-bib .u-ia-biblioteca p { color: var(--ink-2); font-size: 15px; }
.u-bib .u-ia-biblioteca .u-ia-niveles li { min-height: 36px; font-size: 13px; }
.u-bib .u-ia-biblioteca > .u-button { width: 100%; min-height: 50px; margin: 0; padding: 0 16px; justify-content: center; border-radius: 12px; background: var(--accent); color: var(--accent-ink); font-size: 17px; font-weight: 800; }

/* Álbum DEMRE */
.u-bib-album-tarjeta { display: grid; gap: 6px; padding: 16px 0 14px; border-radius: var(--bib-radio); background: var(--surface); }
.u-bib-album-tarjeta > :not(.u-bib-album-scroll) { margin-left: 16px; margin-right: 16px; }
.u-bib-album-etq { display: flex; align-items: center; gap: 6px; margin: 0; color: var(--ring-1-text); font-size: 15px; font-weight: 700; }
.u-bib-album-etq svg { width: 18px; height: 18px; }
.u-bib-album-quedan { margin: 0; font-size: 17px; font-weight: 700; }
.u-bib-album-cifra { display: flex; align-items: baseline; gap: 6px; margin: 0; color: var(--ink-2); font-size: 15px; }
.u-bib-album-cifra b { color: var(--ink); font-size: 34px; line-height: 1.1; font-weight: 800; }
.u-bib-album-barra { height: 8px; overflow: hidden; border-radius: 4px; background: var(--ring-1-track); }
.u-bib-album-barra i { display: block; height: 100%; border-radius: 4px; background: var(--ring-1); }
.u-bib-album-scroll { margin-top: 8px; padding: 0 16px 4px 0; overflow-x: auto; scrollbar-width: thin; }
.u-bib-tabla { border-collapse: separate; border-spacing: 4px; }
.u-bib-tabla th { font-size: 12px; font-weight: 700; }
.u-bib-tabla thead th { min-width: 44px; line-height: 1.15; text-align: center; }
.u-bib-tabla thead th small { display: block; color: var(--ink-2); font-size: 12px; font-weight: 500; }
.u-bib-tabla tbody th, .u-bib-tabla thead th:first-child { position: sticky; left: 0; z-index: 1; background: var(--surface); }
.u-bib-tabla tbody th { padding: 0 6px 0 16px; text-align: left; white-space: nowrap; font-size: 13px; }
.u-bib-punto { display: inline-block; width: 8px; height: 8px; margin-right: 6px; border-radius: 50%; background: var(--c, var(--ink-3)); vertical-align: 1px; }
.u-bib-casilla { width: 44px; height: 44px; padding: 0; border: 1.5px solid var(--line-strong); border-radius: 9px; background: transparent; color: var(--ink); display: grid; place-items: center; cursor: pointer; }
.u-bib-casilla svg { width: 18px; height: 18px; }
.u-bib-casilla.is-rendida { border-color: var(--ring-1); background: var(--ring-1); color: var(--bg); }
.u-bib-casilla.is-curso { border-color: var(--ring-3); background: var(--ring-3-track); color: var(--ring-3-text); }
.u-bib-casilla.is-candado { border-color: var(--line); color: var(--ink-3); }
.u-bib-casilla.is-candado svg { width: 14px; height: 14px; }
.u-bib-casilla.is-nopub { border-style: dashed; opacity: 0.6; cursor: default; }
.u-bib-casilla.is-elegida { outline: 3px solid var(--ink); outline-offset: 2px; }
.u-bib-casilla:focus-visible { outline: 3px solid var(--accent-line); outline-offset: 2px; }
.u-bib-album-ley { list-style: none; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px 12px; margin: 8px 16px 0; padding: 0; color: var(--ink-2); font-size: 13px; }
.u-bib-album-ley li { display: flex; align-items: center; gap: 8px; }
.u-bib-muestra { width: 18px; height: 14px; border: 1.5px solid var(--line-strong); border-radius: 4px; color: var(--ink-3); display: grid; place-items: center; }
.u-bib-muestra.is-rendida { border-color: var(--ring-1); background: var(--ring-1); }
.u-bib-muestra.is-curso { border-color: var(--ring-3); background: var(--ring-3-track); }
.u-bib-muestra.is-nopub { border-style: dashed; opacity: 0.6; }
.u-bib-muestra.is-candado { border-color: var(--line); }
.u-bib-muestra svg { width: 10px; height: 10px; }
.u-bib-album-nota { margin: 8px 4px 0; color: var(--ink-2); font-size: 13px; }

/* Todos los ensayos */
.u-bib-capsulas { display: flex; gap: 8px; padding: 2px 0 4px; overflow-x: auto; scrollbar-width: none; }
.u-bib-capsula { flex: none; min-height: 44px; padding: 0 14px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); color: var(--ink); font: inherit; font-size: 15px; font-weight: 600; display: inline-flex; align-items: center; gap: 6px; cursor: pointer; }
.u-bib-capsula-n { color: var(--ink-2); font-size: 13px; font-weight: 500; }
.u-bib-capsula.is-on { border-color: var(--ink); background: var(--ink); color: var(--bg); }
.u-bib-capsula.is-on .u-bib-capsula-n { color: var(--bg); }
.u-bib-herr { display: grid; grid-template-columns: minmax(0, 1fr); gap: 10px; margin-top: 10px; }
.u-bib-buscar { display: flex; align-items: center; gap: 8px; min-height: 44px; padding: 0 12px; border-radius: 12px; background: var(--surface-3); color: var(--ink-2); }
.u-bib-buscar svg { width: 18px; height: 18px; flex: none; }
.u-bib-buscar input { flex: 1; min-width: 0; min-height: 44px; border: 0; background: transparent; color: var(--ink); font: inherit; font-size: 16px; outline: none; }
.u-bib-buscar input::placeholder { color: var(--ink-2); }
.u-bib-buscar:focus-within { outline: 2px solid var(--accent-line); outline-offset: 2px; }
.u-bib-herr-fila { display: grid; grid-template-columns: minmax(0, 1fr); gap: 10px; }
.u-bib-fuente { justify-self: start; max-width: 100%; min-width: 0; display: flex; align-items: center; gap: 8px; min-height: 44px; padding: 0 4px 0 12px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); font-size: 15px; }
.u-bib-fuente span { color: var(--ink-2); }
.u-bib-fuente select { flex: 1; min-width: 0; min-height: 44px; border: 0; background: transparent; color: var(--ink); font: inherit; font-size: 15px; font-weight: 600; }
.u-bib-seg { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); padding: 3px; border-radius: 12px; background: var(--surface-3); }
.u-bib-seg button { min-height: 44px; padding: 0 4px; border: 0; border-radius: 9px; background: transparent; color: var(--ink-2); font: inherit; font-size: 13px; font-weight: 600; white-space: nowrap; cursor: pointer; }
.u-bib-seg button.is-on { background: var(--surface); color: var(--ink); box-shadow: 0 1px 3px color-mix(in srgb, var(--ink) 14%, transparent); }
.u-bib-cuenta { margin: 14px 0 0; color: var(--ink-2); font-size: 13px; }
.u-bib-vacio { display: grid; justify-items: start; gap: 8px; margin-top: 14px; padding: 20px 16px; border-radius: var(--bib-radio); background: var(--surface); }
.u-bib-vacio b { font-size: 17px; }
.u-bib-vacio p { margin: 0; color: var(--ink-2); font-size: 15px; }
.u-bib-fila { margin-top: 22px; }
.u-bib-fila-cab { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.u-bib-fila-cab h3 { margin: 0; font-size: 20px; font-weight: 800; }
.u-bib-fila-cab h3 span { color: var(--ink-2); font-size: 15px; font-weight: 500; }
.u-bib-fila-der { display: flex; align-items: center; gap: 8px; }
.u-bib-ver { min-height: 44px; padding: 0 4px; border: 0; background: none; color: var(--accent-text); font: inherit; font-size: 15px; font-weight: 700; display: inline-flex; align-items: center; gap: 2px; cursor: pointer; }
.u-bib-ver svg { width: 16px; height: 16px; }
.u-bib-flecha { display: none; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 50%; background: var(--surface); color: var(--ink); cursor: pointer; }
.u-bib-flecha svg { width: 18px; height: 18px; }
.u-bib-riel { display: flex; gap: 12px; padding: 6px 2px 8px; overflow-x: auto; scroll-snap-type: x proximity; scrollbar-width: none; }
.u-bib-portada { --w: 112px; flex: none; width: var(--w); padding: 0; border: 0; background: none; color: var(--ink); font: inherit; text-align: left; display: grid; gap: 6px; scroll-snap-align: start; cursor: pointer; }
.u-bib-portada:focus-visible { outline: 3px solid var(--accent-line); outline-offset: 3px; border-radius: 10px; }
.u-bib-portada-titulo { overflow: hidden; font-size: 13px; line-height: 1.25; font-weight: 700; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.u-bib-portada-estado { display: flex; align-items: center; gap: 4px; color: var(--ink-2); font-size: 12px; }
.u-bib-portada-estado svg { width: 12px; height: 12px; flex: none; }

/* Más recursos */
.u-bib-recurso { width: 100%; min-height: 44px; padding: 10px 14px; border: 0; background: none; color: var(--ink); font: inherit; text-align: left; display: grid; gap: 2px; cursor: pointer; }
.u-bib-recurso + .u-bib-recurso { border-top: 1px solid var(--line); }
.u-bib-recurso b { font-size: 17px; font-weight: 700; }
.u-bib-recurso span { color: var(--ink-2); font-size: 13px; }

/* ---------- Computador (901 px o más) ---------- */
@media (min-width: 901px) {
  .u-bib-arriba { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 0 32px; align-items: start; }
  .u-bib-izq .u-bib-sec { margin-top: 24px; }
  .u-bib-der .u-bib-sec { margin-top: 18px; }
  .u-bib-anillos { padding: 18px 20px; }
  .u-bib-ley { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
  .u-bib-tabla { width: 100%; }
  .u-bib-casilla { width: 100%; min-width: 44px; }
  .u-bib-herr { grid-template-columns: minmax(0, 1fr) auto; align-items: center; }
  .u-bib-herr-fila { display: flex; align-items: center; gap: 10px; }
  .u-bib-seg { min-width: 420px; }
  .u-bib-portada { --w: 148px; }
  .u-bib-sigla { font-size: 38px; }
  .u-bib-sigla.is-larga { font-size: 28px; }
  .u-bib-arte--hero .u-bib-sigla { font-size: 30px; }
  .u-bib-arte--hero .u-bib-sigla.is-larga { font-size: 18px; }
  .u-bib-riel { gap: 18px; }
  .u-bib-flecha { display: inline-grid; place-items: center; }
  .u-bib-final { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 32px; align-items: start; }
}