:root {
  --catalog-navy: #09233f;
  --catalog-blue: #1469a8;
  --catalog-sky: #e9f5fb;
  --catalog-ice: #f5f9fc;
  --catalog-line: #d8e3eb;
  --catalog-muted: #5b6b7c;
  --catalog-green: #0b6a50;
  --catalog-amber: #8a5700;
}

.catalog-section a,
.product-detail-section a,
.product-detail-hero a { text-underline-offset: 3px; }

.catalog-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 28px;
}

.catalog-heading h2 { margin-bottom: 10px; }
.catalog-heading .section-intro { margin: 0; }
.catalog-heading-link { color: var(--catalog-blue); font-weight: 800; white-space: nowrap; }
.catalog-heading-link:hover { text-decoration: underline; }

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.catalog-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--catalog-line);
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 9px 30px rgba(9, 35, 63, .055);
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.catalog-card:hover {
  transform: translateY(-4px);
  border-color: #9fc6dc;
  box-shadow: 0 18px 42px rgba(9, 35, 63, .11);
}

.catalog-card[hidden] { display: none !important; }

.catalog-card-image {
  display: grid;
  min-height: 260px;
  place-items: center;
  padding: 22px;
  background: linear-gradient(145deg, #eef5f8 0%, #fff 68%);
  border-bottom: 1px solid #edf2f5;
}

.catalog-card-image img {
  display: block;
  width: 100%;
  height: 230px;
  object-fit: contain;
  mix-blend-mode: multiply;
  transition: transform .22s ease;
}

.catalog-card:hover .catalog-card-image img { transform: scale(1.035); }

.catalog-card-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 22px;
}

.catalog-card-labels {
  display: flex;
  min-height: 28px;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 14px;
}

.evidence-badge,
.featured-badge {
  display: inline-flex;
  align-items: center;
  min-height: 27px;
  padding: 5px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 850;
  line-height: 1.2;
}

.evidence-documented { color: var(--catalog-green); background: #dff5ed; }
.evidence-offer { color: var(--catalog-amber); background: #fff1cf; }
.featured-badge { color: #174864; background: var(--catalog-sky); }

.catalog-brand {
  color: var(--catalog-blue);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: .09em;
  text-transform: uppercase;
}

.catalog-card h3 {
  margin: 7px 0 9px;
  color: var(--catalog-navy);
  font-size: 22px;
  line-height: 1.2;
}

.catalog-card h3 a:hover { color: var(--catalog-blue); }
.catalog-card p { margin: 0 0 14px; color: var(--catalog-muted); }

.catalog-facts {
  margin: 3px 0 16px;
  padding: 0;
  list-style: none;
}

.catalog-facts li {
  position: relative;
  padding: 8px 0 8px 21px;
  border-bottom: 1px solid #edf2f5;
  color: #344d63;
  font-size: 14px;
}

.catalog-facts li::before {
  content: "✓";
  position: absolute;
  left: 1px;
  color: var(--catalog-green);
  font-weight: 900;
}

.catalog-use {
  margin-top: auto;
  margin-bottom: 16px;
  padding: 12px 14px;
  border-radius: 12px;
  background: var(--catalog-ice);
}

.catalog-use span,
.catalog-use b { display: block; }
.catalog-use span { color: var(--catalog-muted); font-size: 11px; font-weight: 800; letter-spacing: .07em; text-transform: uppercase; }
.catalog-use b { margin-top: 2px; color: var(--catalog-navy); font-size: 14px; }

.catalog-card-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.catalog-card-actions .btn { padding: 11px 12px; font-size: 14px; text-align: center; }
.catalog-card-actions .btn:only-child { grid-column: 1 / -1; }

.catalog-grid-six .catalog-card p {
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.catalog-grid-six .catalog-facts li:nth-child(n+3) { display: none; }

.affiliate-disclosure,
.affiliate-inline {
  color: var(--catalog-muted);
  font-size: 13px;
  line-height: 1.55;
}

.affiliate-disclosure {
  margin: 24px 0 0;
  padding: 14px 17px;
  border: 1px solid var(--catalog-line);
  border-radius: 12px;
  background: rgba(255, 255, 255, .72);
}

.catalog-choice-path {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 30px 0;
}

.catalog-choice-path article {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 13px;
  padding: 18px;
  border: 1px solid var(--catalog-line);
  border-radius: 15px;
  background: var(--catalog-ice);
}

.catalog-choice-path article > span {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 10px;
  color: #fff;
  background: var(--catalog-blue);
  font-weight: 900;
}

.catalog-choice-path b { color: var(--catalog-navy); font-size: 17px; }
.catalog-choice-path p { margin: 4px 0 0; color: var(--catalog-muted); font-size: 14px; }

.catalog-filterbar {
  display: grid;
  grid-template-columns: 1.3fr repeat(3, 1fr) auto;
  gap: 12px;
  align-items: end;
  margin: 28px 0 22px;
  padding: 18px;
  border: 1px solid var(--catalog-line);
  border-radius: 17px;
  background: #fff;
  box-shadow: 0 7px 25px rgba(9, 35, 63, .05);
}

.catalog-compare .catalog-filterbar { grid-template-columns: 1.25fr repeat(4, 1fr) auto; }
.catalog-filterbar label > span { display: block; margin: 0 0 6px 2px; color: var(--catalog-navy); font-size: 12px; font-weight: 800; }
.catalog-filterbar input,
.catalog-filterbar select {
  width: 100%;
  min-height: 46px;
  padding: 10px 12px;
  border: 1px solid #b8cbd8;
  border-radius: 10px;
  color: var(--catalog-navy);
  background: #fff;
}

.catalog-filterbar input:focus,
.catalog-filterbar select:focus { outline: 3px solid rgba(20, 105, 168, .16); border-color: var(--catalog-blue); }

.catalog-reset {
  min-height: 46px;
  padding: 10px 14px;
  border: 1px solid #b8cbd8;
  border-radius: 10px;
  color: var(--catalog-blue);
  background: var(--catalog-sky);
  font-weight: 800;
  cursor: pointer;
}

.catalog-reset:hover { background: #d9eef8; }
.catalog-empty { margin: 24px 0; padding: 20px; border: 1px dashed #9bb6c9; border-radius: 14px; color: var(--catalog-muted); background: var(--catalog-ice); text-align: center; }
.catalog-empty-static { margin: 0; }

.catalog-method {
  display: grid;
  grid-template-columns: .8fr 1.4fr auto;
  gap: 28px;
  align-items: center;
  margin-top: 34px;
  padding: 26px;
  border-radius: 18px;
  color: #fff;
  background: var(--catalog-navy);
}

.catalog-method h3 { margin: 5px 0 0; color: #fff; font-size: 25px; line-height: 1.18; }
.catalog-method p { margin: 0; color: #c5d6e3; }
.catalog-method .kicker { color: #8dd0ee; }
.catalog-method .btn { white-space: nowrap; }

.catalog-result-line { display: flex; justify-content: space-between; gap: 20px; margin: 6px 0 14px; color: var(--catalog-muted); }
.catalog-result-line strong { color: var(--catalog-navy); }
.catalog-table-wrap { overflow-x: auto; border: 1px solid var(--catalog-line); border-radius: 17px; background: #fff; }
.catalog-table { min-width: 1160px; }
.catalog-table th { position: sticky; top: 0; background: var(--catalog-navy); }
.catalog-table td { max-width: 230px; padding: 15px; color: #30495f; font-size: 14px; }
.catalog-table tbody tr:hover { background: #f7fbfd; }
.catalog-table tr[hidden] { display: none; }
.catalog-table .evidence-badge { margin-bottom: 7px; }

.compare-model { display: grid; grid-template-columns: 66px 1fr; gap: 12px; align-items: center; min-width: 210px; }
.compare-model img { width: 66px; height: 72px; padding: 4px; object-fit: contain; border-radius: 9px; background: #fff; mix-blend-mode: multiply; }
.compare-model span,
.compare-model small,
.compare-note { display: block; }
.compare-model b { color: var(--catalog-navy); line-height: 1.25; }
.compare-model small,
.compare-note { margin-top: 4px; color: var(--catalog-muted); font-size: 12px; line-height: 1.45; }
.btn-small { width: 100%; margin: 3px 0; padding: 8px 10px; font-size: 12px; }
.catalog-mobile-comparison { display: none; }

.catalog-compare-explainer {
  display: grid;
  grid-template-columns: .9fr 1.4fr;
  gap: 24px 46px;
  margin-top: 30px;
  padding: 26px 30px;
  border-radius: 17px;
  background: var(--catalog-ice);
  border: 1px solid var(--catalog-line);
}

.catalog-compare-explainer h3 { margin: 0; color: var(--catalog-navy); font-size: 24px; }
.catalog-compare-explainer ul { margin: 0; }
.catalog-compare-explainer li { margin: 5px 0; }
.catalog-compare-explainer > a { grid-column: 1 / -1; color: var(--catalog-blue); font-weight: 800; }

/* Product detail */
.product-breadcrumbs { margin-top: 22px; }
.product-detail-hero { padding: 28px 0 66px; border-bottom: 1px solid var(--catalog-line); background: linear-gradient(135deg, #edf7fc 0%, #f9fcfe 60%, #fff 100%); }
.product-detail-hero-grid { display: grid; grid-template-columns: .86fr 1.14fr; gap: 56px; align-items: center; }
.product-detail-image { margin: 0; }
.product-detail-image > a { display: grid; min-height: 530px; place-items: center; padding: 36px; overflow: hidden; border: 1px solid var(--catalog-line); border-radius: 24px; background: #fff; box-shadow: 0 18px 50px rgba(9, 35, 63, .1); }
.product-detail-image img { display: block; width: 100%; height: 460px; object-fit: contain; mix-blend-mode: multiply; }
.product-detail-image figcaption { margin-top: 10px; color: var(--catalog-muted); font-size: 12px; }
.product-detail-copy h1 { margin: 12px 0 18px; color: var(--catalog-navy); font-size: clamp(38px, 4.5vw, 62px); letter-spacing: -.045em; line-height: 1.03; }
.product-detail-copy .lead { max-width: 680px; }
.product-status-line { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; margin: 22px 0; color: var(--catalog-muted); font-size: 13px; }
.product-verdict { margin: 24px 0; padding: 20px 22px; border: 1px solid #bad8e7; border-left: 5px solid var(--catalog-blue); border-radius: 14px; color: #24445b; background: #fff; font-size: 17px; }
.product-verdict span { display: block; margin-bottom: 5px; color: var(--catalog-blue); font-size: 11px; font-style: normal; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.product-detail-copy .actions .btn { min-height: 50px; }
.affiliate-inline { max-width: 650px; margin-top: 12px; }

.product-detail-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 58px; }
.product-detail-article { min-width: 0; }
.product-keyfacts { scroll-margin-top: 20px; }
.product-keyfacts h2,
.product-editorial-body h2,
.product-source-evaluation h2,
.product-faq h2 { color: var(--catalog-navy); font-size: clamp(27px, 3vw, 38px); line-height: 1.12; letter-spacing: -.03em; }
.product-keyfacts h2 { margin-top: 0; }
.product-keyfacts dl { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; overflow: hidden; margin: 24px 0 46px; border: 1px solid var(--catalog-line); border-radius: 17px; background: var(--catalog-line); }
.product-keyfacts dl > div { min-width: 0; padding: 17px 19px; background: #fff; }
.product-keyfacts dt { color: var(--catalog-muted); font-size: 11px; font-weight: 850; letter-spacing: .07em; text-transform: uppercase; }
.product-keyfacts dd { margin: 4px 0 0; color: var(--catalog-navy); font-weight: 720; }
.product-editorial-body section { scroll-margin-top: 20px; margin: 44px 0; }
.product-editorial-body section:first-child { margin-top: 0; }
.product-editorial-body h2 { margin: 0 0 14px; }
.product-editorial-body p { color: #30495f; font-size: 17px; line-height: 1.72; }
.product-source-evaluation { scroll-margin-top: 20px; margin-top: 54px; padding: 27px; border: 1px solid #bdd8e6; border-radius: 18px; background: #edf7fb; }
.product-source-evaluation h2 { margin: 8px 0 13px; }
.product-source-links { display: flex; flex-wrap: wrap; gap: 11px; margin: 19px 0; }
.product-source-links a { padding: 10px 13px; border-radius: 9px; color: var(--catalog-blue); background: #fff; font-weight: 800; }
.product-source-links a:hover { text-decoration: underline; }
.source-limit { margin-bottom: 0; padding-top: 15px; border-top: 1px solid #bdd8e6; }

.product-faq { scroll-margin-top: 20px; margin-top: 58px; }
.product-faq h2 { margin: 8px 0 12px; }
.product-faq details { padding: 19px 0; }
.product-faq details p { max-width: 760px; color: var(--catalog-muted); }

.product-detail-aside { align-self: start; }
.product-toc,
.product-safety-card,
.product-aside-links { padding: 20px; border: 1px solid var(--catalog-line); border-radius: 15px; background: var(--catalog-ice); }
.product-toc { position: sticky; top: 18px; }
.product-toc b { display: block; margin-bottom: 8px; color: var(--catalog-navy); }
.product-toc a { display: block; padding: 7px 0; color: var(--catalog-muted); font-size: 14px; }
.product-toc a:hover { color: var(--catalog-blue); text-decoration: underline; }
.product-safety-card { margin-top: 17px; border-color: #edcac5; background: #fff5f4; }
.product-safety-card > span { display: grid; width: 38px; height: 38px; place-items: center; border-radius: 10px; color: #782b24; background: #f7d9d5; font-weight: 900; }
.product-safety-card h3 { margin: 12px 0 5px; color: #65251f; }
.product-safety-card p { color: #74443f; font-size: 14px; }
.product-safety-card a { color: #7c2b24; font-weight: 800; }
.product-aside-links { margin-top: 17px; background: #fff; }
.product-aside-links h3 { margin: 0 0 9px; color: var(--catalog-navy); }
.product-aside-links a { display: block; padding: 8px 0; border-bottom: 1px solid #e7eef3; color: var(--catalog-blue); font-size: 14px; font-weight: 740; }
.product-aside-links a:last-child { border-bottom: 0; }

.product-related-links { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.product-related-links a { display: flex; min-height: 145px; flex-direction: column; justify-content: center; padding: 24px; border: 1px solid var(--catalog-line); border-radius: 17px; background: #fff; }
.product-related-links b { color: var(--catalog-navy); font-size: 22px; }
.product-related-links span { margin-top: 6px; color: var(--catalog-blue); }
.product-related-links a:hover { border-color: #89b9d4; box-shadow: 0 12px 28px rgba(9, 35, 63, .08); }

@media (max-width: 1120px) {
  .catalog-filterbar,
  .catalog-compare .catalog-filterbar { grid-template-columns: repeat(3, 1fr); }
  .catalog-method { grid-template-columns: 1fr 1.4fr; }
  .catalog-method .btn { grid-column: 1 / -1; justify-self: start; }
}

@media (max-width: 900px) {
  .catalog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .catalog-choice-path { grid-template-columns: 1fr; }
  .catalog-table-wrap { display: none; }
  .catalog-mobile-comparison { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
  .product-detail-hero-grid { grid-template-columns: 1fr; gap: 34px; }
  .product-detail-image { max-width: 650px; width: 100%; margin: auto; }
  .product-detail-layout { grid-template-columns: 1fr; }
  .product-detail-aside { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; order: -1; }
  .product-toc { position: static; }
  .product-aside-links { grid-column: 1 / -1; margin-top: 0; }
  .product-safety-card { margin-top: 0; }
}

@media (max-width: 680px) {
  .catalog-heading { align-items: flex-start; flex-direction: column; gap: 10px; }
  .catalog-grid,
  .catalog-mobile-comparison { grid-template-columns: 1fr; }
  .catalog-filterbar,
  .catalog-compare .catalog-filterbar { grid-template-columns: 1fr; padding: 15px; }
  .catalog-method { grid-template-columns: 1fr; gap: 17px; padding: 22px; }
  .catalog-method .btn { grid-column: auto; width: 100%; }
  .catalog-result-line { align-items: flex-start; flex-direction: column; gap: 3px; }
  .catalog-compare-explainer { grid-template-columns: 1fr; padding: 22px; }
  .catalog-compare-explainer > a { grid-column: auto; }
  .product-detail-hero { padding-bottom: 46px; }
  .product-detail-image > a { min-height: 380px; padding: 22px; }
  .product-detail-image img { height: 340px; }
  .product-detail-copy h1 { font-size: 38px; }
  .product-detail-copy .actions { flex-direction: column; }
  .product-detail-copy .actions .btn { width: 100%; }
  .product-keyfacts dl { grid-template-columns: 1fr; }
  .product-detail-aside { grid-template-columns: 1fr; }
  .product-aside-links { grid-column: auto; }
  .product-related-links { grid-template-columns: 1fr; }
  .catalog-card-actions { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .catalog-card,
  .catalog-card-image img { transition: none; }
  .catalog-card:hover { transform: none; }
}