/* ============================================================
   TETRACON — Product Catalog + Detail + Manufacturer Detail
   ============================================================ */
.catalog-hero {
  background: linear-gradient(135deg, var(--navy-900), var(--navy-950));
  color: var(--text-on-dark);
  padding: 80px 0 40px;
  position: relative; overflow: hidden;
}
.catalog-hero::before {
  content: ''; position: absolute; inset: 0;
  background: var(--grad-mesh); opacity: 0.55; pointer-events: none;
}
.catalog-hero > .container { position: relative; z-index: 1; }
.catalog-hero .breadcrumb { color: var(--text-on-dark-dim); }
.catalog-hero .breadcrumb a { color: var(--cyan-300); }
.catalog-hero h1 { color: #fff; margin: 12px 0 10px; font-size: clamp(2rem, 4vw, 3rem); }
.catalog-hero p { color: var(--text-on-dark-dim); max-width: 780px; font-size: var(--fs-lead); }
.catalog-hero-search {
  margin-top: 20px; display: flex; align-items: center; gap: 10px;
  background: #fff; padding: 6px 6px 6px 18px;
  border-radius: 999px; max-width: 640px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.25);
}
.catalog-hero-search input {
  flex: 1; border: 0; outline: none;
  font-family: var(--font-body); font-size: 1rem; padding: 10px 0; color: var(--text-primary);
}
.catalog-hero-search button {
  border: 0; padding: 12px 22px; border-radius: 999px;
  background: var(--grad-primary); color: #fff; font-weight: 600; cursor: pointer;
}

.catalog-layout {
  display: grid; grid-template-columns: 260px 1fr;
  gap: 40px; padding: 32px 0 80px;
}
@media (max-width: 900px) {
  .catalog-layout { grid-template-columns: 1fr; }
  .catalog-filters { position: sticky; top: 80px; z-index: 5; background: #fff; padding: 12px; margin: -12px; border-bottom: 1px solid var(--border-light); }
}
.catalog-filters {
  align-self: start;
}
.filter-group { border-top: 1px solid var(--border-light); padding: 16px 0; }
.filter-group:first-child { border-top: 0; padding-top: 0; }
.filter-group h4 {
  font-family: var(--font-display); font-size: 0.85rem;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-primary); margin: 0 0 10px;
}
.filter-group label {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.85rem; color: var(--text-secondary); cursor: pointer;
  padding: 5px 0;
}
.filter-group label input[type="checkbox"] { accent-color: var(--primary); }
.filter-group label .cnt { color: var(--text-secondary); font-size: 0.75rem; margin-left: auto; }

.clear-filters {
  margin-top: 16px; width: 100%;
  padding: 10px; border: 1px solid var(--border-light);
  background: #fff; border-radius: 8px;
  color: var(--primary); font-weight: 600; cursor: pointer;
  font-size: 0.85rem;
}
.clear-filters:hover { background: var(--bg-alt); }

.catalog-toolbar {
  display: flex; justify-content: space-between; align-items: center;
  padding-bottom: 20px; border-bottom: 1px solid var(--border-light); margin-bottom: 24px;
  flex-wrap: wrap; gap: 12px;
}
.catalog-toolbar .results-count { font-size: 0.9rem; color: var(--text-secondary); }
.catalog-toolbar .catalog-controls { display: flex; align-items: center; gap: 10px; }
.catalog-toolbar select {
  border: 1px solid var(--border-light); background: #fff;
  padding: 8px 12px; border-radius: 8px; font-family: var(--font-body); font-size: 0.85rem; color: var(--text-primary);
}
.view-toggle { display: inline-flex; border: 1px solid var(--border-light); border-radius: 8px; overflow: hidden; }
.view-toggle button { border: 0; background: #fff; padding: 8px 12px; cursor: pointer; color: var(--text-secondary); }
.view-toggle button.active { background: var(--primary); color: #fff; }

/* Catalog Product Cards */
.catalog-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}
.catalog-grid.list-view { grid-template-columns: 1fr; }
.pcard {
  display: flex; flex-direction: column;
  background: #fff; border: 1px solid var(--border-light); border-radius: 14px;
  overflow: hidden; transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}
.pcard:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: rgba(51,121,198,0.35); }
.pcard-img {
  aspect-ratio: 4/3; background: var(--bg-alt);
  display: grid; place-items: center; padding: 20px; position: relative;
}
.pcard-img img { max-width: 100%; max-height: 100%; object-fit: contain; transition: transform var(--dur-mid) var(--ease-out); }
.pcard:hover .pcard-img img { transform: scale(1.05); }
.pcard-mfr {
  position: absolute; top: 10px; left: 10px;
  background: #fff; border: 1px solid var(--border-light);
  color: var(--primary); font-size: 0.65rem; font-weight: 700; letter-spacing: 0.06em;
  padding: 4px 8px; border-radius: 999px;
}
.pcard-body { padding: 16px 18px 18px; display: flex; flex-direction: column; flex: 1; }
.pcard-cat { font-family: var(--font-mono); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--teal-500); font-weight: 600; }
.pcard-body h4 { font-family: var(--font-display); font-size: 1rem; color: var(--text-primary); margin: 6px 0 4px; line-height: 1.3; }
.pcard-mfr-name { font-size: 0.75rem; color: var(--primary); font-weight: 600; margin-bottom: 4px; }
.pcard-model { font-size: 0.78rem; color: var(--text-secondary); font-family: var(--font-mono); margin-bottom: 8px; }
.pcard-desc { font-size: 0.83rem; color: var(--text-secondary); line-height: 1.5; margin-bottom: 14px; min-height: 2.4em; }
.pcard-apps { display: flex; flex-wrap: wrap; gap: 4px; margin-bottom: 14px; }
.pcard-apps span { background: var(--bg-alt); color: var(--text-secondary); font-size: 0.7rem; padding: 3px 8px; border-radius: 999px; }
.pcard-actions { display: flex; gap: 8px; margin-top: auto; }
.pcard-actions .btn { flex: 1; padding: 10px 12px; font-size: 0.78rem; text-align: center; }
.pcard-actions .btn-outline { flex: 0 0 auto; padding: 10px; }
.pcard-ds-checking { font-size: 0.76rem; color: var(--text-secondary); font-style: italic; }

/* List view variant */
.catalog-grid.list-view .pcard { flex-direction: row; }
.catalog-grid.list-view .pcard-img { flex: 0 0 220px; aspect-ratio: unset; }
.catalog-grid.list-view .pcard-desc { min-height: 0; }

/* Pagination */
.pagination { display: flex; justify-content: center; gap: 6px; margin-top: 30px; }
.pagination button {
  min-width: 40px; height: 40px; border-radius: 8px;
  border: 1px solid var(--border-light); background: #fff;
  color: var(--text-primary); font-weight: 600; cursor: pointer;
  transition: all var(--dur-fast) var(--ease-out);
}
.pagination button.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.pagination button:hover:not(.active):not(:disabled) { border-color: var(--primary); color: var(--primary); }
.pagination button:disabled { opacity: 0.4; cursor: not-allowed; }

/* Empty state */
.catalog-empty {
  text-align: center; padding: 80px 20px;
  background: var(--bg-alt); border-radius: 14px;
  color: var(--text-secondary);
}
.catalog-empty h3 { color: var(--text-primary); margin: 0 0 8px; }

/* ========= Product Detail Page ========= */
.pdp-header {
  background: var(--bg-alt); padding: 100px 0 24px;
}
.pdp-header .breadcrumb { font-size: 0.82rem; color: var(--text-secondary); }
.pdp-header .breadcrumb a { color: var(--primary); text-decoration: none; }

.pdp-top {
  display: grid; grid-template-columns: 1.05fr 1fr;
  gap: 60px; padding: 40px 0 60px;
}
@media (max-width: 900px) { .pdp-top { grid-template-columns: 1fr; gap: 30px; } }
.pdp-gallery { position: sticky; top: 100px; align-self: start; }
.pdp-main-img {
  background: #fff; border: 1px solid var(--border-light); border-radius: 18px;
  aspect-ratio: 1/1; display: grid; place-items: center; padding: 40px;
  overflow: hidden;
}
.pdp-main-img img { max-width: 100%; max-height: 100%; object-fit: contain; transition: transform var(--dur-mid) var(--ease-out); cursor: zoom-in; }
.pdp-main-img:hover img { transform: scale(1.06); }
.pdp-thumbs { display: flex; gap: 10px; margin-top: 14px; }
.pdp-thumbs button {
  width: 76px; height: 76px; border-radius: 10px;
  border: 2px solid var(--border-light); background: #fff; padding: 6px;
  cursor: pointer;
}
.pdp-thumbs button.active, .pdp-thumbs button:hover { border-color: var(--primary); }
.pdp-thumbs img { max-width: 100%; max-height: 100%; object-fit: contain; }

.pdp-info .pdp-mfr {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.8rem; color: var(--primary); text-decoration: none;
  padding: 6px 12px; border-radius: 999px; border: 1px solid rgba(51,121,198,0.3);
  background: rgba(51,121,198,0.06);
  font-weight: 600;
}
.pdp-info h1 { font-size: clamp(1.7rem, 3vw, 2.4rem); margin: 14px 0 8px; line-height: 1.15; }
.pdp-info .pdp-tagline { font-size: var(--fs-lead); color: var(--text-secondary); margin-bottom: 20px; }
.pdp-meta {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
  padding: 16px 0; border-top: 1px solid var(--border-light); border-bottom: 1px solid var(--border-light);
  margin-bottom: 24px;
}
.pdp-meta > div { font-size: 0.8rem; color: var(--text-secondary); }
.pdp-meta > div strong { display: block; color: var(--text-primary); font-family: var(--font-mono); font-size: 0.9rem; margin-top: 2px; }

.pdp-cta { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 24px; }
.pdp-cta .btn { flex: 1; min-width: 160px; }

.pdp-quick-features { list-style: none; padding: 0; margin: 0; }
.pdp-quick-features li {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 8px 0; font-size: 0.9rem; color: var(--text-secondary);
}
.pdp-quick-features svg { flex-shrink: 0; color: var(--primary); margin-top: 3px; }

/* PDP sections */
.pdp-section { padding: 50px 0; border-top: 1px solid var(--border-light); }
.pdp-section h2 { font-size: clamp(1.4rem, 2.5vw, 1.9rem); margin-bottom: 20px; }
.pdp-section h3 { font-size: 1.15rem; margin: 20px 0 10px; color: var(--text-primary); }
.pdp-section p { font-size: 1rem; line-height: 1.7; }

.pdp-two-col { display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px; }
@media (max-width: 700px) { .pdp-two-col { grid-template-columns: 1fr; } }

.spec-table { width: 100%; border-collapse: collapse; margin-top: 12px; font-size: 0.9rem; }
.spec-table caption {
  text-align: left; font-family: var(--font-display); font-weight: 600;
  color: var(--text-primary); padding: 14px 0 8px; font-size: 1rem;
}
.spec-table tr { border-bottom: 1px solid var(--border-light); }
.spec-table th, .spec-table td { padding: 10px 12px; text-align: left; vertical-align: top; }
.spec-table th { width: 45%; color: var(--text-secondary); font-weight: 500; }
.spec-table td { color: var(--text-primary); font-family: var(--font-mono); font-size: 0.85rem; }

.pdp-downloads-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px;
}
.pdp-download {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 14px; border: 1px solid var(--border-light); border-radius: 10px;
  color: inherit; background: #fff;
  transition: all var(--dur-fast) var(--ease-out);
}
.pdp-download.is-available:hover { border-color: var(--primary); box-shadow: var(--shadow-sm); }
.pdp-download.is-pending { opacity: 0.75; }
.pdp-download .dl-icon {
  width: 42px; height: 42px; border-radius: 10px;
  background: rgba(51,121,198,0.1); color: var(--primary);
  display: grid; place-items: center; flex-shrink: 0;
}
.pdp-download strong { display: block; font-size: 0.85rem; color: var(--text-primary); }
.pdp-download span { display: block; font-size: 0.7rem; color: var(--text-secondary); }
.pdp-download-actions { display: flex; gap: 8px; margin-left: auto; }
.pdp-download-actions .btn-sm { padding: 6px 12px; font-size: 0.72rem; }
.pdp-download.is-pending .dl-status { color: var(--text-secondary); font-style: italic; }

.tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.tag-list span, .tag-list a {
  background: var(--bg-alt); color: var(--text-primary);
  font-size: 0.8rem; padding: 6px 12px; border-radius: 999px;
  text-decoration: none;
}
.tag-list a:hover { background: var(--primary); color: #fff; }

/* Quote form */
.pdp-quote {
  background: linear-gradient(135deg, var(--navy-900), var(--navy-950));
  color: var(--text-on-dark);
  padding: 60px 0;
  margin-top: 40px;
}
.pdp-quote h2, .pdp-quote h3 { color: #fff; }
.pdp-quote p { color: var(--text-on-dark-dim); }
.quote-form {
  display: grid; grid-template-columns: 1fr 1fr; gap: 14px;
  background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1);
  padding: 24px; border-radius: 14px; margin-top: 20px;
}
@media (max-width: 700px) { .quote-form { grid-template-columns: 1fr; } }
.quote-form input, .quote-form textarea {
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15);
  color: #fff; padding: 12px 14px; border-radius: 8px; font-family: var(--font-body); font-size: 0.9rem;
  outline: none;
}
.quote-form input::placeholder, .quote-form textarea::placeholder { color: rgba(255,255,255,0.5); }
.quote-form input:focus, .quote-form textarea:focus { border-color: var(--cyan-300); }
.quote-form textarea { grid-column: 1 / -1; min-height: 100px; resize: vertical; }
.quote-form button { grid-column: 1 / -1; }

/* FAQ */
.faq-item {
  border-bottom: 1px solid var(--border-light);
}
.faq-q {
  padding: 18px 0; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-display); font-weight: 600; color: var(--text-primary);
  font-size: 1rem;
}
.faq-q::after { content: '+'; font-size: 1.4rem; color: var(--primary); font-weight: 300; }
.faq-item.open .faq-q::after { content: '−'; }
.faq-a {
  max-height: 0; overflow: hidden; transition: max-height var(--dur-mid) var(--ease-out); padding: 0;
}
.faq-item.open .faq-a { max-height: 300px; padding-bottom: 18px; }
.faq-a p { color: var(--text-secondary); font-size: 0.95rem; margin: 0; }

/* Related products carousel */
.pdp-related {
  padding: 60px 0; background: var(--bg-alt);
}

/* Manufacturer detail */
.mfr-hero {
  background: linear-gradient(135deg, var(--navy-900), var(--navy-950)); color: var(--text-on-dark);
  padding: 100px 0 60px; position: relative; overflow: hidden;
}
.mfr-hero::before { content: ''; position: absolute; inset: 0; background: var(--grad-mesh); opacity: 0.5; }
.mfr-hero > .container { position: relative; z-index: 1; }
.mfr-hero .breadcrumb { color: var(--text-on-dark-dim); }
.mfr-hero .breadcrumb a { color: var(--cyan-300); }
.mfr-hero-inner { display: grid; grid-template-columns: 100px 1fr; gap: 24px; align-items: center; margin-top: 20px; }
.mfr-mark-big {
  width: 100px; height: 100px; border-radius: 20px;
  background: #fff; color: var(--primary);
  display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 700; font-size: 1.6rem;
  box-shadow: var(--shadow-md);
}
.mfr-hero h1 { color: #fff; margin: 0; }
.mfr-hero .mfr-country { color: var(--cyan-300); font-size: 0.9rem; margin-top: 6px; }
.mfr-hero .mfr-desc { color: var(--text-on-dark-dim); font-size: var(--fs-lead); max-width: 780px; margin-top: 16px; }
.mfr-tags-hero { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.mfr-tags-hero span { background: rgba(255,255,255,0.1); color: #fff; padding: 5px 12px; border-radius: 999px; font-size: 0.8rem; }

.download-thumb{
  display:flex; align-items:center; justify-content:center;
  overflow:hidden; padding:0; flex-shrink:0;
  width:48px; height:48px; border-radius:8px;
  background:#fff;
}
.download-thumb img{
  width:100%; height:100%; object-fit:contain;
}
.download-meta h4 a{
  color:inherit; text-decoration:none;
}
.download-meta h4 a:hover{
  text-decoration:underline;
}