/* ==========================================================================
   IMCOPARTES — Catálogo público
   Páginas servidas en /catalogo/*
   Mobile-first. Watermark CSS overlay sobre cada imagen.
   Regla bidireccional: cero referencias a la marca B2C separada (ver README).
   ========================================================================== */

/* ---------- Layout base ---------- */
.cat-page {
  min-height: 100vh;
  background: var(--imco-white, #fff);
  color: var(--imco-black, #222221);
  font-family: "Inter", "Montserrat", system-ui, -apple-system, sans-serif;
}

.cat-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
}
@media (min-width: 768px) {
  .cat-container { padding: 0 32px; }
}

/* ---------- Hero (home /catalogo) ---------- */
.cat-hero {
  background: linear-gradient(135deg, var(--imco-blue, #145D9E) 0%, #0B3052 100%);
  color: #fff;
  padding: 56px 0 64px;
  position: relative;
  overflow: hidden;
}
.cat-hero__eyebrow {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .12em;
  font-weight: 600;
  opacity: .85;
  margin-bottom: 16px;
}
.cat-hero__title {
  font-size: clamp(28px, 5vw, 44px);
  line-height: 1.1;
  font-weight: 800;
  margin: 0 0 16px;
  letter-spacing: -.02em;
}
.cat-hero__title em {
  font-style: normal;
  color: #FFD60A;
}
.cat-hero__lead {
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.55;
  max-width: 640px;
  opacity: .92;
  margin: 0 0 24px;
}
.cat-hero__stats {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 24px;
}
.cat-hero__stat {
  display: flex;
  flex-direction: column;
}
.cat-hero__stat strong {
  font-size: 28px;
  font-weight: 800;
  line-height: 1;
}
.cat-hero__stat span {
  font-size: 13px;
  opacity: .8;
  margin-top: 4px;
}

/* ---------- Brand grid (home) ---------- */
.cat-brands {
  padding: 48px 0 64px;
}
.cat-brands__head {
  margin-bottom: 24px;
}
.cat-brands__title {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  margin: 0 0 8px;
  letter-spacing: -.01em;
}
.cat-brands__sub {
  color: var(--neutral-600, #525154);
  font-size: 15px;
  margin: 0;
}
.cat-brands__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 24px;
}
@media (min-width: 560px) {
  .cat-brands__grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 880px) {
  .cat-brands__grid { grid-template-columns: repeat(4, 1fr); }
}

.cat-brand-card {
  display: flex;
  flex-direction: column;
  padding: 20px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid rgba(0,0,0,.08);
  border-top: 4px solid var(--bc, #145D9E);
  text-decoration: none;
  color: inherit;
  transition: transform .15s ease, box-shadow .15s ease;
  min-height: 160px;
}
.cat-brand-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,.08);
}
.cat-brand-card__name {
  font-size: 18px;
  font-weight: 700;
  color: var(--bc, #145D9E);
  margin: 0 0 4px;
  min-height: 34px;
  display: flex;
  align-items: center;
}
.cat-brand-card__logo {
  display: block;
  height: 34px;
  width: auto;
  max-width: 70%;
  object-fit: contain;
  object-position: left center;
}
.cat-brand-card__tagline {
  font-size: 13px;
  color: var(--neutral-700, #3a3a3a);
  margin: 0 0 12px;
  font-weight: 500;
}
.cat-brand-card__desc {
  font-size: 13px;
  line-height: 1.45;
  color: var(--neutral-600, #525154);
  margin: 0;
  flex: 1;
}
.cat-brand-card__foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid rgba(0,0,0,.06);
  font-size: 12px;
  color: var(--neutral-500, #767676);
}
.cat-brand-card__foot strong { color: var(--bc, #145D9E); font-weight: 700; }

/* ---------- Píldoras de estado (Agotado / Novedad / Restock) ---------- */
.cat-pill {
  position: absolute; top: 10px; left: 10px; z-index: 4;
  font-size: 11px; font-weight: 800; letter-spacing: .04em; text-transform: uppercase;
  color: #fff; border-radius: 999px; padding: 4px 10px; line-height: 1;
  box-shadow: 0 1px 4px rgba(0,0,0,.18);
}
.cat-pill--agotado { background: #76766F; }
.cat-pill--novedad { background: #1F8A5B; }
.cat-pill--restock { background: #C57A12; }

/* ---------- Brand header (en /catalogo/{brand}) ---------- */
.cat-brand-head {
  background: var(--bc, #145D9E);
  color: #fff;
  padding: 40px 0 48px;
}
.cat-brand-head__crumb {
  font-size: 12px;
  opacity: .75;
  margin-bottom: 12px;
}
.cat-brand-head__crumb a {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.cat-brand-head__title {
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 800;
  margin: 0 0 8px;
  letter-spacing: -.02em;
  color: inherit; /* hereda el ink de la marca; sin esto el h1 global (var(--fg)) lo pisa → oscuro sobre oscuro */
}
/* Logo real de la marca en chip blanco (legible sobre cualquier color de marca) */
.cat-brand-head__logo {
  display: inline-flex; align-items: center; justify-content: center;
  background: #fff; border-radius: 14px;
  padding: 14px 20px;
  box-shadow: 0 4px 16px rgba(0,0,0,.16);
}
.cat-brand-head__logo img {
  display: block; height: 46px; width: auto; max-width: min(72vw, 320px);
  object-fit: contain;
}
@media (max-width: 560px) {
  .cat-brand-head__logo { padding: 11px 15px; border-radius: 11px; }
  .cat-brand-head__logo img { height: 36px; }
}
.cat-brand-head__tagline {
  font-size: clamp(14px, 1.6vw, 16px);
  opacity: .92;
  margin: 0 0 6px;
  font-weight: 500;
  color: inherit;
}
.cat-brand-head__desc {
  font-size: 14px;
  opacity: .85;
  max-width: 640px;
  margin: 8px 0 0;
  line-height: 1.5;
  color: inherit;
}

/* ---------- Filtros + grid productos ---------- */
.cat-list {
  padding: 24px 0 64px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
@media (min-width: 880px) {
  .cat-list {
    grid-template-columns: 240px 1fr;
    padding-top: 32px;
  }
}

.cat-filters {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.cat-filters__group {
  background: var(--neutral-50, #f7f7f8);
  border: 1px solid rgba(0,0,0,.06);
  border-radius: 10px;
  padding: 14px;
}
.cat-filters__label {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--neutral-700, #3a3a3a);
  margin-bottom: 8px;
}
.cat-filters__input,
.cat-filters__select {
  width: 100%;
  padding: 9px 12px;
  font-size: 14px;
  border: 1px solid rgba(0,0,0,.12);
  border-radius: 8px;
  background: #fff;
  color: inherit;
  font-family: inherit;
}
.cat-filters__input:focus,
.cat-filters__select:focus {
  outline: none;
  border-color: var(--imco-blue, #145D9E);
  box-shadow: 0 0 0 3px rgba(20,93,158,.15);
}
.cat-filters__clear {
  background: transparent;
  border: 0;
  color: var(--imco-blue, #145D9E);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  padding: 8px 0 0;
  text-align: left;
  font-family: inherit;
}

.cat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
@media (min-width: 560px) {
  .cat-grid { grid-template-columns: repeat(3, 1fr); gap: 16px; }
}
@media (min-width: 1024px) {
  .cat-grid { grid-template-columns: repeat(4, 1fr); }
}

.cat-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid rgba(0,0,0,.08);
  border-radius: 10px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.cat-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,.08);
  border-color: rgba(0,0,0,.16);
}
.cat-card__thumb {
  position: relative;
  aspect-ratio: 1 / 1;
  background: var(--neutral-100, #ececee);
  position: relative;
  overflow: hidden;
}
.cat-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.cat-card__no-img {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--neutral-400, #a3a3a5);
  font-size: 11px;
  text-align: center;
  padding: 8px;
}
.cat-card__body {
  padding: 10px 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}
.cat-card__sku {
  font-family: "JetBrains Mono", "SF Mono", Menlo, monospace;
  font-size: 11px;
  color: var(--imco-blue, #145D9E);
  font-weight: 700;
  letter-spacing: .02em;
}
.cat-card__desc {
  font-size: 13px;
  line-height: 1.35;
  color: var(--imco-black, #222221);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin: 0;
}
.cat-card__brand {
  font-size: 10px;
  color: var(--neutral-500, #767676);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-top: 4px;
}

/* Watermark CSS — capa extra encima del thumb (la imagen ya viene marcada
   por el endpoint /img/{sku}/public, esto es defensa en profundidad). */
.cat-watermark {
  position: absolute;
  inset: 0;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.cat-watermark::before {
  content: "imcopartes.com";
  position: absolute;
  font-family: "Montserrat", system-ui, sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .08em;
  color: rgba(255,255,255,.55);
  text-shadow: 0 1px 2px rgba(0,0,0,.4);
  transform: rotate(-30deg);
  white-space: nowrap;
}
.cat-watermark--lg::before {
  font-size: 28px;
  letter-spacing: .12em;
}

/* ---------- Sin resultados / loading ---------- */
.cat-empty,
.cat-loading {
  padding: 40px 16px;
  text-align: center;
  color: var(--neutral-500, #767676);
  font-size: 14px;
  grid-column: 1 / -1;
}
.cat-loading__spinner {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 3px solid rgba(20,93,158,.18);
  border-top-color: var(--imco-blue, #145D9E);
  border-radius: 50%;
  animation: cat-spin .8s linear infinite;
  margin-bottom: 8px;
}
@keyframes cat-spin { to { transform: rotate(360deg); } }

/* ---------- Detalle producto ---------- */
.cat-detail {
  padding: 24px 0 64px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
@media (min-width: 880px) {
  .cat-detail {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 48px;
    padding-top: 32px;
  }
}

.cat-detail__media {
  position: relative;
  aspect-ratio: 1 / 1;
  background: var(--neutral-100, #ececee);
  border-radius: 12px;
  overflow: hidden;
}
.cat-detail__media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.cat-detail__crumb {
  font-size: 12px;
  color: var(--neutral-500, #767676);
  margin-bottom: 8px;
}
.cat-detail__crumb a {
  color: var(--imco-blue, #145D9E);
  text-decoration: none;
}
.cat-detail__crumb a:hover { text-decoration: underline; }
.cat-detail__sku {
  display: inline-block;
  font-family: "JetBrains Mono", "SF Mono", Menlo, monospace;
  font-size: 14px;
  font-weight: 700;
  background: var(--blue-50, #EAF2FA);
  color: var(--imco-blue, #145D9E);
  padding: 6px 12px;
  border-radius: 6px;
  letter-spacing: .04em;
  margin-bottom: 12px;
}
.cat-detail__title {
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 700;
  margin: 0 0 12px;
  line-height: 1.25;
  letter-spacing: -.01em;
}
.cat-detail__brand {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: #fff;
  background: var(--bc, #145D9E);
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 16px;
}
.cat-detail__specs {
  display: flex;
  flex-direction: column;
  border-top: 1px solid rgba(0,0,0,.08);
  margin: 16px 0 20px;
}
.cat-detail__spec {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid rgba(0,0,0,.06);
  font-size: 14px;
}
.cat-detail__spec dt {
  color: var(--neutral-600, #525154);
  font-weight: 500;
}
.cat-detail__spec dd {
  margin: 0;
  font-weight: 600;
  color: var(--imco-black, #222221);
  text-align: right;
}
.cat-detail__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 22px;
  background: #25D366;
  color: #fff;
  text-decoration: none;
  border-radius: 10px;
  font-weight: 700;
  font-size: 15px;
  box-shadow: 0 4px 14px rgba(37,211,102,.25);
  transition: transform .12s ease, box-shadow .12s ease;
}
.cat-detail__cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(37,211,102,.32);
}
.cat-detail__note {
  font-size: 12px;
  color: var(--neutral-500, #767676);
  margin-top: 12px;
  line-height: 1.5;
}

/* ---------- Paginación / infinite scroll sentinel ---------- */
.cat-loadmore {
  padding: 32px 0;
  display: flex;
  justify-content: center;
  grid-column: 1 / -1;
}
.cat-loadmore button {
  padding: 12px 24px;
  background: var(--imco-blue, #145D9E);
  color: #fff;
  border: 0;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  font-size: 14px;
  font-family: inherit;
}
.cat-loadmore button:disabled { opacity: .5; cursor: not-allowed; }