/* Sectores «Bento por sector» (maqueta 137), solo para sectores.html. Cada sector es una tarjeta (piedra / blanco alternando) con texto a un lado y un bento
   de renders a sangre al otro (1 grande + 3-4 pequeños, juntas blancas de 2 px). Filtro en píldoras. Sin JS propio:
   el filtro por hash lo hace app.js. Nada cambia con el scroll; solo hover/foco reaccionan. */

/* el filtro en píldoras (.filtro-pil) vive ahora en estilos.css: lo usan también las páginas sector-*.html */

/* ---------- tarjetas ---------- */
.bn-cont { display: flex; flex-direction: column; gap: var(--s-2); padding-bottom: var(--sec); }
.sector-blq.bn { margin-top: 0; display: grid; grid-template-columns: minmax(0, 1fr); overflow: hidden; }
.sector-blq.bn[hidden] { display: none; }
.bn-piedra { background: var(--mesa); }
.bn-blanco { background: #fff; box-shadow: inset 0 0 0 1px var(--piedra); }

.bn-txt { display: flex; flex-direction: column; align-items: flex-start; padding: var(--s-3) var(--m) var(--s-3); }
.bn-rot { margin: 0 0 var(--s-3); font-family: var(--mono, "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace); font-size: 0.75rem; letter-spacing: 0.06em; text-transform: uppercase; }
.bn-txt h2 { font-size: clamp(1.75rem, 7vw, 2.5rem); line-height: 1.04; }
.bn-txt h2 a { text-decoration: none; }
.bn-txt h2 a:hover { text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 0.12em; }
.bn-frase { margin: var(--s-1) 0 0; max-width: 28ch; font-size: var(--t-0); line-height: 1.4; }
.bn-ver { margin-top: var(--s-3); display: inline-flex; gap: 8px; font-weight: 500; font-size: var(--t-small); color: var(--fg); text-decoration: underline; text-decoration-color: var(--signal); text-decoration-thickness: 2px; text-underline-offset: 0.28em; }
.bn-ver span { transition: transform var(--ease); }
.bn-ver:hover span, .bn-ver:focus-visible span { transform: translateX(4px); }
.bn-ver:focus-visible { outline: 2px solid var(--grafito); outline-offset: 3px; }

/* ---------- bento ---------- */
.bn-lista { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; background: #fff; aspect-ratio: 5 / 4;
  grid-template-columns: 1fr 1fr; grid-template-rows: 2fr 1fr; grid-template-areas: "h h" "a b"; }
/* composiciones genéricas por si un sector queda con 1 o 2 proyectos visibles */
[data-l="2a"] .bn-lista { grid-template-areas: "h h" "a a"; }
[data-l="1a"] .bn-lista { grid-template-columns: 1fr; grid-template-rows: 1fr; grid-template-areas: "h"; }
.bn-t { position: relative; min-width: 0; min-height: 0; }
.bn-h { grid-area: h; } .bn-a { grid-area: a; } .bn-b { grid-area: b; } .bn-c { grid-area: c; } .bn-d { grid-area: d; }
.bn-c, .bn-d { display: none; } /* móvil: render grande + fila de 2 */
.bn-t .cel { position: absolute; inset: 0; overflow: hidden; background: var(--line); }
.bn-t .cel img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.bn-t .cel:focus-visible { outline: 3px solid var(--fg); outline-offset: -3px; box-shadow: inset 0 0 0 6px #fff; }
/* mismo hover que el muro de la portada: velo sobre toda la imagen, sin zoom */
.bn-t .cel:focus-visible .velo { opacity: 1; visibility: visible; transition-delay: 0s; }
@media (hover: hover) { .bn-t .cel:hover .velo { opacity: 1; visibility: visible; transition-delay: 0s; } }

@media (min-width: 900px) {
  .bn-cont { gap: var(--s-3); }
  .sector-blq.bn { grid-template-columns: minmax(250px, 1fr) minmax(0, 2.4fr); }
  .sector-blq.bn.bn-inv { grid-template-columns: minmax(0, 2.4fr) minmax(250px, 1fr); }
  .bn-inv .bn-txt { order: 2; }
  .bn-txt { padding: var(--s-4) var(--s-4) var(--s-4) clamp(24px, 3vw, 48px); justify-content: space-between; }
  .bn-inv .bn-txt { padding: var(--s-4) clamp(24px, 3vw, 48px) var(--s-4) var(--s-4); }
  .bn-rot { margin-bottom: var(--s-4); }
  .bn-txt h2 { font-size: clamp(2rem, 3vw, 3rem); }
  .bn-lista { aspect-ratio: 16 / 10; }
  .bn-c, .bn-d { display: block; }

  [data-l="5a"] .bn-lista { grid-template-columns: 2fr 1fr 1fr; grid-template-rows: 1fr 1fr; grid-template-areas: "h a b" "h c d"; }
  [data-l="5b"] .bn-lista { grid-template-columns: 1fr 1fr 2fr; grid-template-rows: 1fr 1fr; grid-template-areas: "a b h" "c d h"; }
  [data-l="5c"] .bn-lista { aspect-ratio: 4 / 3; grid-template-columns: repeat(4, 1fr); grid-template-rows: 1fr 1fr 0.9fr; grid-template-areas: "h h h a" "h h h b" "c c d d"; }
  [data-l="5d"] .bn-lista { aspect-ratio: 4 / 3; grid-template-columns: repeat(4, 1fr); grid-template-rows: 1fr 1fr 0.8fr; grid-template-areas: "a a h h" "b c h h" "d d d d"; }
  [data-l="4b"] .bn-lista { aspect-ratio: 4 / 3; grid-template-columns: repeat(3, 1fr); grid-template-rows: 1fr 1fr 0.8fr; grid-template-areas: "h h a" "h h b" "c c c"; }
  [data-l="3a"] .bn-lista { grid-template-columns: 2fr 1fr; grid-template-rows: 1fr 1fr; grid-template-areas: "h a" "h b"; }
  [data-l="3b"] .bn-lista { grid-template-columns: 1fr 2fr; grid-template-rows: 1fr 1fr; grid-template-areas: "a h" "b h"; }
  [data-l="2a"] .bn-lista { grid-template-columns: 3fr 2fr; grid-template-rows: 1fr; grid-template-areas: "h a"; }
  [data-l="1a"] .bn-lista { aspect-ratio: 16 / 9; }
}

/* zonas táctiles (puntero grueso): «Ver el sector» a 40 px de alto sin descuadrar la tarjeta */
@media (pointer: coarse) {
  .bn-ver { align-items: center; min-height: 40px; margin-top: calc(var(--s-3) - 8.5px); margin-bottom: -8.5px; }
}