/* ============================================================
   Product Archive template (e.g. /products/?product_category=air-handling-units)
   Own richer page banner (chips grid) — not the shared page-banner.php partial.
   ============================================================ */

#page-banner {
  position: relative;
  height: 36vh;
  min-height: 260px;
  max-height: 420px;
  overflow: hidden;
}
#page-banner .banner-img {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center 40%;
  transform: scale(1.04);
  animation: bannerZoom 9s ease-out forwards;
}
@keyframes bannerZoom { to { transform: scale(1); } }
#page-banner .banner-img::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    125deg,
    rgba(6,18,9,.88) 0%,
    rgba(13,33,22,.72) 45%,
    rgba(15,32,64,.55) 100%
  );
}
#page-banner .banner-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 0% 100%, rgba(27,82,48,.25) 0%, transparent 55%),
    radial-gradient(ellipse at 100% 0%, rgba(26,61,107,.18) 0%, transparent 50%);
}
#page-banner .banner-content {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 340px;
  align-items: center;
  gap: 2.5rem;
  padding: 0 8vw;
}
.banner-left {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .4rem;
  font-family: var(--font-ui);
  font-size: .69rem;
  font-weight: 700;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: rgba(255,255,255,.45);
  margin-bottom: 1rem;
}
.breadcrumb a { color: rgba(255,255,255,.45); text-decoration: none; transition: color .2s; }
.breadcrumb a:hover, .breadcrumb a:focus-visible { color: var(--g-400); }
.breadcrumb .bc-cat { color: var(--b-500); }
.breadcrumb span.bc-current { color: var(--g-400); }

.banner-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: .55rem;
}
.banner-title em { font-style: italic; color: var(--g-400); }

.banner-tagline {
  font-family: var(--font-ui);
  font-size: clamp(.85rem, 1.2vw, 1rem);
  color: rgba(255,255,255,.65);
  line-height: 1.65;
  max-width: 560px;
  margin-bottom: 1.6rem;
}

.banner-chips {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .6rem;
  align-self: center;
}
.banner-chip {
  display: flex;
  align-items: center;
  gap: .55rem;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.13);
  backdrop-filter: blur(6px);
  padding: .65rem .9rem .65rem .7rem;
  border-radius: 8px;
  transition: background .2s, border-color .2s;
}
.banner-chip:hover {
  background: rgba(255,255,255,.13);
  border-color: rgba(61,175,110,.35);
}
.banner-chip-icon {
  width: 1.8rem;
  height: 1.8rem;
  background: var(--g-700);
  border-radius: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--g-400);
  flex-shrink: 0;
}
.banner-chip-val {
  display: block;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
  line-height: 1;
}
.banner-chip-lbl {
  display: block;
  font-family: var(--font-ui);
  font-size: .57rem;
  font-weight: 700;
  letter-spacing: .11em;
  text-transform: uppercase;
  color: rgba(255,255,255,.45);
  margin-top: .18rem;
}

/* Filter bar */
#filter-bar {
  background: var(--g-900);
  padding: .9rem 0;
  position: sticky;
  top: 73px;
  z-index: 100;
  border-bottom: 1px solid rgba(61,175,110,.12);
}
.filter-inner {
  display: flex;
  align-items: center;
  gap: .65rem;
  flex-wrap: wrap;
}
.filter-label {
  font-family: var(--font-ui);
  font-size: .65rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: rgba(255,255,255,.35);
  margin-right: .2rem;
  flex-shrink: 0;
}
.filter-btn {
  font-family: var(--font-ui);
  font-size: .73rem;
  font-weight: 600;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: rgba(255,255,255,.55);
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.09);
  padding: .36rem .85rem;
  border-radius: 4px;
  cursor: pointer;
  transition: background .2s, border-color .2s, color .2s;
}
.filter-btn:hover,
.filter-btn.active {
  background: var(--g-700);
  border-color: var(--g-600);
  color: #fff;
}
.filter-btn:focus-visible { outline: 2px solid var(--g-400); outline-offset: 1px; }
.filter-count {
  margin-left: auto;
  font-family: var(--font-ui);
  font-size: .7rem;
  color: rgba(255,255,255,.3);
  letter-spacing: .06em;
  flex-shrink: 0;
}
.filter-count strong { color: var(--g-400); }

/* Product grid */
#products-listing {
  padding: 3rem 0 6rem;
  background: var(--light);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.65rem;
}

.prod-card {
  background: #fff;
  border: 1px solid rgba(27,82,48,.08);
  border-radius: 14px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform .35s var(--ease-out), box-shadow .35s;
}
.prod-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-elevated);
}

.prod-img-wrap {
  position: relative;
  height: 230px;
  overflow: hidden;
  background: var(--g-100);
}
.prod-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .55s var(--ease-out);
}
.prod-card:hover .prod-img-wrap img { transform: scale(1.07); }
.prod-img-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 45%, rgba(6,18,9,.55) 100%);
  pointer-events: none;
}

.prod-badges {
  position: absolute;
  top: .9rem;
  left: .9rem;
  display: flex;
  gap: .35rem;
  z-index: 2;
}
.badge {
  font-family: var(--font-ui);
  font-size: .6rem;
  font-weight: 700;
  letter-spacing: .11em;
  text-transform: uppercase;
  padding: .25rem .65rem;
  border-radius: 3px;
}
.badge-cat  { background: rgba(13,33,22,.75); backdrop-filter: blur(4px); color: var(--g-400); border: 1px solid rgba(61,175,110,.25); }
.badge-feat { background: var(--b-700); color: #fff; }
.badge-new  { background: #92400E; color: #FEF3C7; }

.prod-model-overlay {
  position: absolute;
  bottom: .85rem;
  right: .85rem;
  z-index: 2;
  font-family: var(--font-ui);
  font-size: .6rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(255,255,255,.6);
  background: rgba(6,18,9,.5);
  backdrop-filter: blur(4px);
  padding: .22rem .6rem;
  border-radius: 3px;
}

.prod-body {
  padding: 1.5rem 1.65rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.prod-brand {
  font-family: var(--font-ui);
  font-size: .63rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--g-500);
  margin-bottom: .35rem;
}
.prod-name {
  font-family: var(--font-display);
  font-size: 1.38rem;
  font-weight: 700;
  color: var(--g-800);
  letter-spacing: -0.02em;
  line-height: 1.18;
  margin-bottom: .6rem;
  text-decoration: none;
  display: block;
  transition: color .2s;
}
.prod-card:hover .prod-name { color: var(--g-600); }
.prod-desc {
  font-size: .87rem;
  color: var(--text-secondary);
  line-height: 1.68;
  margin-bottom: 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.prod-specs {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
  margin-bottom: 1.25rem;
}
.spec-tag {
  font-family: var(--font-ui);
  font-size: .63rem;
  font-weight: 600;
  letter-spacing: .07em;
  color: var(--g-700);
  background: var(--g-100);
  border: 1px solid rgba(61,175,110,.18);
  padding: .22rem .6rem;
  border-radius: 3px;
}

.prod-footer {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid rgba(27,82,48,.07);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.prod-link {
  display: inline-flex;
  align-items: center;
  gap: .42rem;
  font-family: var(--font-ui);
  font-size: .73rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--g-600);
  text-decoration: none;
  padding-bottom: .12rem;
  border-bottom: 1.5px solid var(--g-300);
  transition: gap .2s, border-color .2s, color .2s;
}
.prod-link:hover { gap: .7rem; border-color: var(--g-600); }
.prod-inquiry {
  font-family: var(--font-ui);
  font-size: .68rem;
  color: var(--text-muted);
  letter-spacing: .04em;
  text-decoration: none;
  transition: color .2s;
}
.prod-inquiry:hover { color: var(--g-600); }

/* Related categories */
#related-cats {
  padding: 5rem 0;
  background: var(--g-900);
  position: relative;
  overflow: hidden;
}
#related-cats::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 15% 60%, rgba(27,82,48,.18) 0%, transparent 50%),
    radial-gradient(ellipse at 85% 30%, rgba(61,175,110,.08) 0%, transparent 50%);
}

.rel-cats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.1rem;
  margin-top: 2.75rem;
}

.rel-cat-card {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  text-decoration: none;
  display: block;
  height: 300px;
  transition: transform .35s var(--ease-out), box-shadow .35s;
}
.rel-cat-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 50px rgba(0,0,0,.4);
}

.rel-cat-img {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform .6s var(--ease-out);
}
.rel-cat-card:hover .rel-cat-img { transform: scale(1.07); }

.rel-cat-img::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(6,18,9,.92) 0%, rgba(13,33,22,.65) 55%, rgba(27,82,48,.2) 100%);
}
.rel-cat-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(27,82,48,.12);
  mix-blend-mode: multiply;
  transition: opacity .3s;
}
.rel-cat-card:hover .rel-cat-img::after { opacity: 0; }

.rel-cat-body {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem 1.4rem;
}

.rel-cat-icon {
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid rgba(61,175,110,.35);
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--g-400);
  margin-bottom: .9rem;
  background: rgba(13,33,22,.55);
  backdrop-filter: blur(4px);
  transition: background .25s, border-color .25s;
}
.rel-cat-card:hover .rel-cat-icon {
  background: var(--g-700);
  border-color: var(--g-600);
  color: #fff;
}

.rel-cat-name {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: .4rem;
}
.rel-cat-desc {
  font-family: var(--font-ui);
  font-size: .76rem;
  color: rgba(255,255,255,.55);
  line-height: 1.55;
  margin-bottom: .9rem;
}
.rel-cat-arrow {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  font-family: var(--font-ui);
  font-size: .65rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(255,255,255,.4);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity .25s, transform .25s var(--ease-out), color .2s;
}
.rel-cat-card:hover .rel-cat-arrow {
  opacity: 1;
  transform: translateY(0);
  color: var(--g-400);
}

/* CTA */
#prod-cta {
  padding: 4.5rem 0;
  background: var(--light);
}
.prod-cta-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  align-items: center;
}
.prod-cta-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 2.8vw, 2.35rem);
  font-weight: 700;
  color: var(--g-800);
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: .6rem;
}
.prod-cta-text h2 em { font-style: italic; color: var(--g-600); }
.prod-cta-text p {
  font-size: .93rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 520px;
}
.prod-cta-actions { display: flex; flex-direction: column; gap: .75rem; align-items: flex-start; }

/* Responsive */
@media (max-width: 1100px) {
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .rel-cats-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  #page-banner .banner-content { grid-template-columns: 1fr; }
  .banner-chips { display: none; }
}
@media (max-width: 768px) {
  .prod-cta-inner { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .products-grid { grid-template-columns: 1fr; }
  .rel-cats-grid { grid-template-columns: 1fr 1fr; }
  #filter-bar { top: 0; }
  .rel-cat-card { height: 240px; }
}