/* Product list: category filters + compact specification rows, shared with URL-based search. */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.catalog-shell { width: min(1320px, calc(100% - 80px)); margin: 0 auto; padding: 28px 0 64px; }
.catalog-shell a { text-decoration: none; }
.catalog-shell a:hover { color: var(--blue); text-decoration: underline; }
.catalog-shell .breadcrumbs { margin: 0 0 26px; font-size: 12px; line-height: 1.6; }
.catalog-heading { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding-bottom: 28px; margin-bottom: 26px; border-bottom: 1px solid var(--line); }
.catalog-eyebrow { color: var(--accent); font-size: 11px; letter-spacing: 1.6px; font-weight: 700; margin: 0 0 9px; }
.catalog-heading h1 { margin: 0; font-size: clamp(23px, 2.5vw, 32px); line-height: 1.25; letter-spacing: -.6px; color: var(--ink); }
.catalog-heading p:last-child { color: var(--muted); font-size: 13px; line-height: 1.6; margin: 12px 0 0; }
.catalog-total { flex-shrink: 0; color: var(--muted); font-size: 12px; text-align: right; }
.catalog-total strong { display: block; font-size: 30px; font-weight: 600; color: var(--blue); margin-bottom: 4px; }
.catalog-layout { display: grid; grid-template-columns: 248px minmax(0, 1fr); gap: 28px; align-items: start; }
.catalog-sidebar { border: 1px solid var(--line); border-radius: 6px; overflow: hidden; font-size: 13px; }
.catalog-filter-panel { padding: 18px; border-bottom: 1px solid var(--line); }
.catalog-filter-panel > summary { display: flex; justify-content: space-between; align-items: center; font-size: 14px; font-weight: 700; cursor: pointer; list-style: none; }
.catalog-filter-panel > summary::-webkit-details-marker { display: none; }
.catalog-filter-panel:not([open]) > summary span { transform: rotate(-90deg); }
.catalog-sidebar-form { display: grid; gap: 9px; margin-top: 20px; }
.catalog-sidebar-form > label { font-weight: 600; font-size: 12px; margin-top: 5px; }
.catalog-sidebar-form input[type="search"], .catalog-sidebar-form select { width: 100%; min-width: 0; padding: 10px; border: 1px solid #d5dde8; border-radius: 4px; font: inherit; font-size: 12px; background: #fff; color: var(--ink); }
.catalog-sidebar-form .catalog-check { display: flex; align-items: center; gap: 6px; font-weight: 400; margin: 8px 0; line-height: 1.5; }
.catalog-check input { accent-color: var(--blue); width: 15px; height: 15px; }
.catalog-sidebar-form .primary-button { font-size: 13px; padding: 10px 14px; }
.catalog-reset { text-align: center; color: var(--muted); padding: 4px 0; font-size: 12px; }
.catalog-all { display: block; margin-top: 16px; padding: 9px 0; font-weight: 600; }
.catalog-category-tree { list-style: none; margin: 4px 0 0; padding: 0; }
.catalog-category-tree li { position: relative; padding: 0; }
.catalog-category-tree li > a { display: block; padding: 8px 34px 8px 0; font-size: 12px; line-height: 1.55; color: #53617a; overflow-wrap: anywhere; }
.catalog-category-tree .category-count { position: absolute; right: 0; top: 9px; color: #8490a3; font-size: 10px; }
.catalog-category-tree [aria-current="page"], .catalog-all[aria-current="page"] { color: var(--blue); font-weight: 700; }
.catalog-category-tree [aria-current="page"] { background: #eff4fc; border-radius: 4px; padding-left: 7px; }
.catalog-category-tree ul { margin-left: 8px; padding-left: 8px; border-left: 1px solid var(--line); }
.catalog-sidebar-note { padding: 16px 18px; margin: 0; font-size: 11px; color: var(--muted); line-height: 1.8; background: #fafbfd; }
.catalog-results { min-width: 0; }
.catalog-toolbar { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 14px; margin-bottom: 18px; font-size: 12px; }
.catalog-toolbar > div { display: flex; gap: 12px; align-items: center; }
.catalog-toolbar strong { font-size: 14px; color: var(--blue); }
.catalog-toolbar > div > span { color: var(--muted); font-size: 11px; }
.catalog-toolbar form { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.catalog-toolbar label { color: var(--muted); font-size: 11px; }
.catalog-toolbar select { border: 1px solid var(--line); border-radius: 4px; padding: 8px 9px; color: var(--ink); font: inherit; background: white; }
.catalog-apply { padding: 8px 12px; border: 1px solid var(--blue); background: white; color: var(--blue); border-radius: 4px; font: inherit; cursor: pointer; }
.catalog-active-filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.catalog-active-filters a { border-radius: 4px; padding: 8px 10px; background: #eaf1fc; color: var(--blue); font-size: 12px; }
.catalog-subcategories { padding: 12px 16px; background: var(--surface); border-radius: 4px; font-size: 12px; margin-bottom: 18px; }
.catalog-subcategories summary { cursor: pointer; color: var(--muted); }
.catalog-subcategories .category-chips { margin-bottom: 0; }
.catalog-subcategories .category-chip { font-size: 11px; }
.catalog-result { margin-bottom: 16px; border: 1px solid var(--line); border-radius: 6px; background: white; overflow: hidden; }
.catalog-result-heading { display: flex; gap: 18px; align-items: center; padding: 20px; }
.catalog-thumbnail { flex: 0 0 88px; width: 88px; height: 88px; display: grid; place-items: center; overflow: hidden; border: 1px solid #e8edf3; border-radius: 4px; background: #fafbfd; }
.catalog-thumbnail.has-image { background: white; }
.catalog-thumbnail img { width: 86px; height: 86px; object-fit: contain; }
.thumbnail-fallback { text-align: center; color: #9aa5b5; }
.thumbnail-fallback > span { display: block; font-size: 22px; line-height: 1.3; }
.thumbnail-fallback small { font-size: 10px; }
.catalog-result-identity { min-width: 0; flex: 1; }
.catalog-product-number { margin: 0 0 6px; font-size: 11px; font-weight: 700; letter-spacing: .5px; color: var(--blue); }
.catalog-result h2 { font-size: 17px; font-weight: 600; line-height: 1.5; margin: 0 0 9px; color: #1d2b42; overflow-wrap: anywhere; }
.catalog-chemical-meta { display: flex; flex-wrap: wrap; gap: 7px 18px; font-size: 12px; line-height: 1.6; color: var(--muted); }
.catalog-chemical-meta strong { color: #53617a; font-weight: 400; }
.catalog-cas { color: var(--blue); }
.catalog-detail-link { color: var(--blue); border: 1px solid #cfdbef; padding: 9px 12px; border-radius: 4px; font-size: 12px; white-space: nowrap; }
.catalog-result-facts { display: grid; grid-template-columns: minmax(0, 1fr) 190px; gap: 20px; padding: 14px 20px; background: #f8fafc; border-top: 1px solid #edf0f5; }
.catalog-fact-label { display: block; font-size: 10px; color: #7b889b; letter-spacing: .3px; margin-bottom: 8px; }
.catalog-spec p { font-size: 13px; margin: 0; line-height: 1.7; color: #34425a; overflow-wrap: anywhere; }
.catalog-docs > div { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.catalog-unavailable { font-size: 12px; color: #8a95a7; }
.catalog-document-status { display: block; width: 100%; font-size: 11px; color: #738096; line-height: 1.5; }
.catalog-document-badge { border: 1px solid #cedbf1; background: white; color: var(--blue); padding: 3px 9px; border-radius: 3px; font-size: 11px; }
.catalog-supply-note { padding: 9px 20px; font-size: 11px; color: #8792a3; border-top: 1px solid #edf0f5; }
.catalog-pack-disclosure { border-top: 1px solid #edf0f5; }
.catalog-pack-disclosure summary { cursor: pointer; padding: 11px 20px; color: var(--blue); font-weight: 600; font-size: 12px; }
.catalog-pack-disclosure summary > span { font-size: 11px; color: var(--muted); font-weight: 400; margin-left: 8px; }
.catalog-pack-body { padding: 0 20px 18px; }
.catalog-pack-body > p { font-size: 11px; color: var(--muted); line-height: 1.7; }
.catalog-pack-body .pack-table { font-size: 12px; }
.catalog-no-results { padding: 50px 24px; background: var(--surface); border: 1px solid var(--line); border-radius: 6px; text-align: center; }
.catalog-no-results h2 { font-size: 19px; }
.catalog-no-results p { font-size: 13px; line-height: 1.8; color: var(--muted); margin-bottom: 22px; }
.catalog-pagination { gap: 7px; }
.catalog-pagination .page-link { font-size: 12px; padding: 9px 12px; }
.catalog-pagination .is-disabled { color: #abb4c2; background: #fafbfd; }
.catalog-end-note { text-align: center; font-size: 11px; line-height: 1.8; color: #8a95a7; margin: 24px 0 0; }
@media (max-width: 1100px) {
  .catalog-shell { width: calc(100% - 48px); }
  .catalog-layout { grid-template-columns: 220px minmax(0, 1fr); gap: 20px; }
  .catalog-result-heading { gap: 12px; padding: 16px; }
  .catalog-thumbnail { flex-basis: 72px; width: 72px; height: 72px; }
  .catalog-thumbnail img { width: 70px; height: 70px; }
  .catalog-result-facts { grid-template-columns: minmax(0, 1fr) 150px; padding: 14px 16px; }
}
@media (max-width: 900px) {
  .catalog-shell { width: calc(100% - 32px); padding-top: 22px; }
  .catalog-layout { grid-template-columns: minmax(0, 1fr); }
  .catalog-sidebar { display: grid; grid-template-columns: 1fr 1fr; align-items: start; }
  .catalog-sidebar-note { grid-column: 1 / -1; }
  .catalog-sidebar .catalog-filter-panel { border-bottom: 0; }
  .catalog-sidebar .catalog-filter-panel + .catalog-filter-panel { border-left: 1px solid var(--line); }
  .catalog-heading { margin-bottom: 20px; padding-bottom: 20px; }
}
@media (max-width: 560px) {
  .catalog-heading { align-items: start; }
  .catalog-heading h1 { font-size: 23px; }
  .catalog-total strong { font-size: 23px; }
  .catalog-total { font-size: 10px; }
  .catalog-heading p:last-child { font-size: 12px; }
  .catalog-filter-panel { padding: 14px 12px; }
  .catalog-sidebar-form { grid-template-columns: minmax(0, 1fr); }
  .catalog-sidebar-form label { font-size: 11px; }
  .catalog-toolbar { gap: 12px; }
  .catalog-toolbar > div { width: 100%; justify-content: space-between; }
  .catalog-toolbar form { width: 100%; gap: 7px; }
  .catalog-toolbar select { padding: 8px 5px; font-size: 11px; }
  .catalog-result-heading { flex-wrap: wrap; padding: 15px; gap: 12px; }
  .catalog-result-identity { flex-basis: calc(100% - 84px); }
  .catalog-result h2 { font-size: 15px; }
  .catalog-chemical-meta { font-size: 11px; gap: 5px 10px; }
  .catalog-detail-link { margin-left: auto; padding: 7px 11px; font-size: 11px; }
  .catalog-result-facts { grid-template-columns: minmax(0, 1fr); gap: 15px; padding: 14px 15px; }
  .catalog-fact-label { font-size: 9px; margin-bottom: 6px; }
  .catalog-spec p { font-size: 12px; }
  .catalog-supply-note { padding: 9px 15px; font-size: 10px; }
  .catalog-pagination .page-link { padding: 8px 10px; }
}