/* =====================================================================
   Aluminios Ruta 5 · Catálogo y ficha de producto
   ===================================================================== */

.nav--solid { background: rgba(255, 255, 255, .88); backdrop-filter: blur(16px) saturate(160%); -webkit-backdrop-filter: blur(16px) saturate(160%); box-shadow: 0 1px 0 rgba(11, 11, 13, .06); }

/* ---------- Cabecera catálogo ---------- */
.cat-hero { padding: calc(var(--nav-h) + 3rem) 0 2rem; background: var(--white); }
.cat-hero__inner { display: flex; align-items: flex-end; justify-content: space-between; gap: 2rem; flex-wrap: wrap; }
.cat-hero h1 { font-size: var(--text-3xl); margin-top: .8rem; max-width: 18ch; }
.cat-hero__count { font-family: var(--font-display); font-weight: 600; color: var(--alu-500); font-size: .95rem; }
.cat-hero__count strong { color: var(--ink); font-size: 2rem; letter-spacing: -.03em; display: block; line-height: 1; }

/* ---------- Toolbar ---------- */
.toolbar {
  position: sticky; top: var(--nav-h); z-index: 40;
  background: rgba(255, 255, 255, .92); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid var(--alu-200); border-bottom: 1px solid var(--alu-200);
  transition: top .4s var(--ease-out);
}
.nav--hidden ~ main .toolbar { top: 0; }
.toolbar__inner { display: flex; align-items: center; gap: .75rem; padding: .75rem 0; }
.search { position: relative; flex: 0 0 300px; }
.search svg { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); width: 18px; height: 18px; color: var(--alu-500); pointer-events: none; }
.search input {
  width: 100%; height: 46px; padding: 0 2.6rem 0 2.6rem;
  border: 1.5px solid var(--alu-200); border-radius: 999px; background: var(--alu-50);
  font-size: .95rem; outline: none; transition: border-color .2s, background .2s, box-shadow .2s;
}
.search input:focus { border-color: var(--blue); background: #fff; box-shadow: 0 0 0 4px rgba(10, 127, 190, .12); }
.search__clear { position: absolute; right: 8px; top: 50%; transform: translateY(-50%); width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; color: var(--alu-500); }
.search__clear:hover { background: var(--alu-100); color: var(--ink); }
.search__clear svg { position: static; transform: none; width: 16px; height: 16px; color: inherit; }

.chips { display: flex; gap: .4rem; overflow-x: auto; scrollbar-width: none; flex: 1; padding: 2px; -webkit-overflow-scrolling: touch; }
.chips::-webkit-scrollbar { display: none; }
.chip {
  flex: none; height: 42px; padding: 0 1rem; border-radius: 999px;
  border: 1.5px solid var(--alu-200); background: #fff;
  font-family: var(--font-display); font-weight: 600; font-size: .85rem; white-space: nowrap;
  transition: background .2s, color .2s, border-color .2s, transform .2s;
}
.chip:hover { border-color: var(--ink); }
.chip[aria-pressed="true"] { background: var(--ink); color: #fff; border-color: var(--ink); }
.chip__count { margin-left: .35rem; opacity: .55; font-weight: 500; }

.select-wrap { position: relative; flex: none; }
.select-wrap select {
  appearance: none; height: 42px; padding: 0 2.3rem 0 1rem; border-radius: 999px;
  border: 1.5px solid var(--alu-200); background: #fff;
  font-family: var(--font-display); font-weight: 600; font-size: .85rem; cursor: pointer;
}
.select-wrap select:focus { border-color: var(--blue); outline: none; }
.select-wrap::after { content: ""; position: absolute; right: 14px; top: 50%; width: 8px; height: 8px; border-right: 2px solid var(--ink); border-bottom: 2px solid var(--ink); transform: translateY(-70%) rotate(45deg); pointer-events: none; }

.toolbar__filters-btn { display: none; }

@media (max-width: 900px) {
  .toolbar__inner { flex-wrap: nowrap; }
  .search { flex: 1; }
  .chips--toolbar, .select-wrap--toolbar { display: none; }
  .toolbar__filters-btn {
    display: inline-flex; align-items: center; gap: .45rem; flex: none;
    height: 46px; padding: 0 1.1rem; border-radius: 999px;
    border: 1.5px solid var(--alu-200); background: #fff;
    font-family: var(--font-display); font-weight: 600; font-size: .9rem;
  }
  .toolbar__filters-btn svg { width: 18px; height: 18px; }
  .toolbar__filters-btn .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--blue); display: none; }
  .toolbar__filters-btn.has-filters .dot { display: block; }
}

/* ---------- Bottom sheet (filtros mobile) ---------- */
.sheet { position: fixed; inset: 0; z-index: 150; display: none; }
.sheet--open { display: block; }
.sheet__backdrop { position: absolute; inset: 0; background: rgba(11, 11, 13, .5); animation: fade .25s; }
@keyframes fade { from { opacity: 0; } }
.sheet__panel {
  position: absolute; left: 0; right: 0; bottom: 0;
  max-height: 86vh; overflow: auto;
  background: #fff; border-radius: 22px 22px 0 0;
  padding: .75rem var(--gutter) calc(1.25rem + env(safe-area-inset-bottom));
  animation: slideUp .4s var(--ease-out);
}
@keyframes slideUp { from { transform: translateY(100%); } }
.sheet__handle { width: 44px; height: 5px; border-radius: 3px; background: var(--alu-300); margin: 0 auto 1rem; }
.sheet__title { display: flex; justify-content: space-between; align-items: center; font-family: var(--font-display); font-weight: 700; font-size: 1.2rem; margin-bottom: 1rem; }
.sheet__title button { font-family: var(--font-body); font-weight: 500; font-size: .9rem; color: var(--blue); }
.sheet__group { margin-bottom: 1.4rem; }
.sheet__group h4 { font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--alu-500); margin-bottom: .6rem; font-weight: 600; }
.sheet__chips { display: flex; flex-wrap: wrap; gap: .4rem; }
.sheet__actions { display: grid; grid-template-columns: 1fr 1fr; gap: .6rem; position: sticky; bottom: 0; background: #fff; padding-top: .75rem; }

/* ---------- Grilla ---------- */
.catalog { padding: 1.75rem 0 var(--section); background: var(--alu-50); min-height: 60vh; }
.catalog__meta { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-bottom: 1.1rem; font-size: .9rem; color: var(--alu-700); }
.catalog__meta strong { color: var(--ink); }
.active-filters { display: flex; flex-wrap: wrap; gap: .4rem; }
.active-filters button { display: inline-flex; align-items: center; gap: .35rem; height: 30px; padding: 0 .7rem; border-radius: 999px; background: var(--blue-100); color: var(--blue-700); font-size: .8rem; font-weight: 500; }
.active-filters button svg { width: 12px; height: 12px; }
.grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.grid .pcard { animation: cardIn .6s var(--ease-out) both; }
@keyframes cardIn { from { opacity: 0; transform: translateY(16px); } }
@media (max-width: 1100px) { .grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 760px) {
  .grid { grid-template-columns: repeat(2, 1fr); gap: .7rem; }
  .pcard__body { padding: .85rem .9rem 1rem; gap: .25rem; }
  .pcard__title { font-size: .95rem; }
  .pcard__meta { font-size: .78rem; }
  .pcard__foot { padding-top: .6rem; }
  .pcard__price { font-size: .9rem; }
  .pcard__price--ask small { font-size: .68rem; white-space: nowrap; }
  .badge { font-size: .62rem; padding: .25rem .5rem; }
  .pcard__badges { gap: .25rem; }
  .grid .pcard__media { aspect-ratio: 1 / 1; }
  .grid .pcard__media--placeholder img { padding: 30% 12% 12%; }
}
.empty { grid-column: 1 / -1; text-align: center; padding: 4rem 1rem; background: #fff; border-radius: var(--radius-lg); border: 1px dashed var(--alu-300); }
.empty h3 { font-size: var(--text-xl); margin-bottom: .5rem; }
.empty p { color: var(--alu-700); margin-bottom: 1.2rem; }

/* CTA band */
.band { background: var(--ink); color: #fff; padding: clamp(2.5rem, 5vw, 4rem) 0; }
.band__inner { display: flex; align-items: center; justify-content: space-between; gap: 2rem; flex-wrap: wrap; }
.band h2 { font-size: var(--text-2xl); max-width: 22ch; }
.band p { color: var(--alu-400); margin-top: .5rem; max-width: 50ch; }

/* ---------- Ficha de producto ---------- */
.product { padding: calc(var(--nav-h) + 2rem) 0 var(--section); }
.crumbs { display: flex; flex-wrap: wrap; align-items: center; gap: .4rem; font-size: .85rem; color: var(--alu-500); margin-bottom: 1.5rem; }
.crumbs a:hover { color: var(--blue); }
.crumbs svg { width: 14px; height: 14px; }
.product__grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: clamp(1.5rem, 5vw, 4rem); align-items: start; }

.gallery { position: sticky; top: calc(var(--nav-h) + 1rem); }
.gallery__main { position: relative; aspect-ratio: 4 / 3; border-radius: var(--radius-lg); overflow: hidden; background: linear-gradient(135deg, var(--alu-100), var(--alu-50)); border: 1px solid var(--alu-200); cursor: zoom-in; }
.gallery__main img { width: 100%; height: 100%; object-fit: cover; transition: opacity .3s; }
.gallery__main--placeholder img { object-fit: contain; padding: 12%; }
.gallery__main--placeholder { cursor: default; }
.gallery__badges { position: absolute; top: 1rem; left: 1rem; display: flex; gap: .4rem; }
.gallery__thumbs { display: flex; gap: .6rem; margin-top: .75rem; overflow-x: auto; scrollbar-width: none; }
.gallery__thumbs::-webkit-scrollbar { display: none; }
.gallery__thumbs button { flex: none; width: 76px; aspect-ratio: 1; border-radius: 12px; overflow: hidden; border: 2px solid transparent; background: var(--alu-100); transition: border-color .2s; }
.gallery__thumbs button[aria-current="true"] { border-color: var(--blue); }
.gallery__thumbs img { width: 100%; height: 100%; object-fit: cover; }

.info__cat { display: flex; align-items: center; gap: .6rem; flex-wrap: wrap; }
.info__cat a { font-family: var(--font-display); font-weight: 600; font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; color: var(--blue); }
.info__code { font-size: .8rem; color: var(--alu-500); font-family: var(--font-display); }
.info h1 { font-size: var(--text-3xl); margin-top: .7rem; }
.info__resumen { margin-top: 1rem; font-size: var(--text-lg); color: var(--alu-700); }
.info__price { margin-top: 1.4rem; display: flex; align-items: baseline; gap: .5rem; flex-wrap: wrap; }
.info__price strong { font-family: var(--font-display); font-size: 2rem; letter-spacing: -.03em; }
.info__price span { color: var(--alu-500); font-size: .9rem; }
.info__price--ask strong { font-size: 1.25rem; color: var(--alu-700); font-weight: 600; }
.info__actions { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1.4rem; }
.info__actions .btn--primary { flex: 1 1 260px; }
.specs { margin-top: 2rem; border-top: 1px solid var(--alu-200); }
.specs h3 { font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--alu-500); padding: 1.2rem 0 .4rem; font-weight: 600; }
.specs dl { display: grid; grid-template-columns: max-content 1fr; }
.specs dt, .specs dd { padding: .65rem 0; border-bottom: 1px solid var(--alu-100); font-size: .95rem; }
.specs dt { color: var(--alu-700); padding-right: 1.5rem; font-weight: 500; }
.specs dd { margin: 0; font-weight: 500; }
.tags { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: 1.2rem; }
.tags span { padding: .3rem .7rem; border-radius: 999px; background: var(--alu-100); font-size: .78rem; color: var(--alu-700); }
.desc { margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid var(--alu-200); }
.desc h3 { font-size: var(--text-xl); margin-bottom: .6rem; }
.desc p { color: var(--alu-700); white-space: pre-line; }
.trust { display: grid; grid-template-columns: 1fr 1fr; gap: .6rem; margin-top: 1.6rem; }
.trust li { display: flex; gap: .6rem; align-items: flex-start; padding: .8rem .9rem; border-radius: 12px; background: var(--alu-50); border: 1px solid var(--alu-200); font-size: .82rem; color: var(--alu-700); }
.trust svg { width: 18px; height: 18px; flex: none; color: var(--blue); margin-top: 1px; }
.trust strong { display: block; color: var(--ink); font-weight: 600; }

.related { padding: var(--section) 0; background: var(--alu-50); border-top: 1px solid var(--alu-200); }
.related h2 { font-size: var(--text-2xl); margin-bottom: 1.4rem; }
.related .grid { grid-template-columns: repeat(4, 1fr); }

.product-loading { padding: calc(var(--nav-h) + 4rem) 0; text-align: center; color: var(--alu-500); }

/* Lightbox */
.lightbox { position: fixed; inset: 0; z-index: 200; background: rgba(11, 11, 13, .94); display: none; align-items: center; justify-content: center; padding: 2rem; }
.lightbox--open { display: flex; }
.lightbox img { max-width: 100%; max-height: 100%; object-fit: contain; border-radius: 8px; }
.lightbox__close { position: absolute; top: 1rem; right: 1rem; width: 46px; height: 46px; border-radius: 50%; background: rgba(255, 255, 255, .12); color: #fff; display: grid; place-items: center; }
.lightbox__close svg { width: 22px; height: 22px; }
.lightbox__nav { position: absolute; top: 50%; transform: translateY(-50%); width: 48px; height: 48px; border-radius: 50%; background: rgba(255, 255, 255, .12); color: #fff; display: grid; place-items: center; }
.lightbox__nav svg { width: 22px; height: 22px; }
.lightbox__nav--prev { left: 1rem; } .lightbox__nav--next { right: 1rem; }

@media (max-width: 900px) {
  .product { padding-top: calc(var(--nav-h) + 1rem); }
  .product__grid { grid-template-columns: 1fr; }
  .gallery { position: static; }
  .related .grid { grid-template-columns: repeat(2, 1fr); }
  .trust { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .info__actions .btn { flex: 1 1 100%; }
  .gallery__main { border-radius: var(--radius); }
}