.product-guide-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, .9fr);
  gap: clamp(32px, 6vw, 80px);
  align-items: end;
  max-width: none;
}

.product-guide-header h1 {
  max-width: 17ch;
  text-wrap: balance;
}

.product-guide-header figure {
  margin: 0;
  background: #f1ece7;
}

.product-guide-header figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: contain;
}

.product-guide-header figcaption {
  padding: 9px 12px;
  color: #876e72;
  font-size: 10px;
  letter-spacing: .14em;
}

.product-guide-body {
  max-width: 1040px;
  min-width: 0;
}

/* Product articles also carry the shared editorial article classes. Scope the
   product layout so the later generic reading-column rules cannot collapse a
   full decision guide into a narrow 780px strip on desktop. */
.product-guide-shell .article-breadcrumb {
  width: min(calc(100% - 64px), 1180px);
  margin-inline: auto;
  padding-inline: 0;
}

.product-guide-shell .product-guide-header {
  width: min(calc(100% - 64px), 1180px);
  min-height: 0;
  margin-inline: auto;
  padding-block: clamp(54px, 6vw, 86px);
  grid-template-columns: minmax(0, 1fr) minmax(360px, .9fr);
  grid-template-rows: auto;
  border-bottom: 1px solid #e5dddd;
}

.product-guide-shell .product-guide-header > div { min-width: 0; }

.product-guide-shell .product-guide-body {
  width: min(calc(100% - 64px), 1040px);
  max-width: none;
  margin-inline: auto;
  padding-top: clamp(60px, 7vw, 96px);
}

.product-guide-shell .article-end-nav {
  width: min(calc(100% - 64px), 1040px);
}

.product-decision,
.product-evidence,
.product-compare,
.product-next {
  padding: clamp(30px, 5vw, 74px) 0;
  border-top: 1px solid #e5dddd;
}

.product-decision h2,
.product-evidence h2,
.product-compare h2,
.product-next h2 {
  font: 400 clamp(28px, 4vw, 49px) / 1.25 var(--serif);
  letter-spacing: .02em;
}

.product-decision p,
.product-evidence > p,
.product-compare p,
.product-next p {
  max-width: 720px;
  color: #4c4544;
  font-size: 16px;
  line-height: 2;
}

.product-decision ol {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 0;
  list-style: none;
}

.product-decision li {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px;
  padding: 18px 0;
  border-top: 1px solid #b68b91;
  font: 400 17px / 1.6 var(--serif);
}

.product-decision li b {
  color: #9a1934;
  font: 400 22px / 1.3 var(--serif);
}

.product-evidence {
  padding-inline: clamp(16px, 5vw, 64px);
  background: linear-gradient(90deg, transparent, #f7f3ef 12%, #f7f3ef 88%, transparent);
}

.product-palette {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px;
  margin: 30px 0;
}

.product-palette article {
  min-width: 0;
  padding: 20px;
  border-top: 2px solid #9a1934;
  background: #fffdfa;
}

.product-palette i {
  display: block;
  width: 100%;
  height: 42px;
  margin-bottom: 18px;
  background: var(--swatch);
  box-shadow: inset 0 0 0 1px rgb(0 0 0 / 8%);
}

.product-palette h3 {
  margin: 0 0 12px;
  font: 400 21px / 1.45 var(--serif);
}

.product-palette p {
  margin: 6px 0;
  color: #5d5652;
  font-size: 13px;
  line-height: 1.7;
}

.product-compare dl {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin: 32px 0 0;
  background: #ddd4d3;
}

.product-compare dl div {
  padding: 22px;
  background: #fffdfa;
}

.product-compare dt {
  color: #9a1934;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
}

.product-compare dd {
  margin: 12px 0 0;
  line-height: 1.7;
}

.product-guide-index {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 42px;
  max-width: 1180px;
  margin: 70px auto 0;
  padding: 48px 0;
  border-top: 1px solid #ddd4d3;
}

.product-guide-index h2 {
  margin: 8px 0;
  font: 400 32px / 1.35 var(--serif);
}

.product-guide-index p {
  color: #991b35;
  font-size: 12px;
  letter-spacing: .12em;
}

.product-guide-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 28px;
}

.product-guide-links a {
  padding: 15px 0;
  border-bottom: 1px solid #ded6d4;
  color: inherit;
  line-height: 1.55;
  text-decoration: none;
}

.product-guide-links a span {
  float: right;
  color: #991b35;
}

.product-guide-more {
  grid-column: 2;
  margin-top: 16px;
}

.product-guide-more > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 56px;
  padding: 0 16px;
  border: 1px solid #cfc4c2;
  color: #8d102a;
  cursor: pointer;
  font-weight: 700;
  letter-spacing: .04em;
  list-style: none;
}

.product-guide-more > summary::-webkit-details-marker { display: none; }
.product-guide-more > summary b { font-size: 20px; font-weight: 400; transition: transform .2s ease; }
.product-guide-more[open] > summary b { transform: rotate(45deg); }
.product-guide-more > summary:focus-visible { outline: 2px solid #8d102a; outline-offset: 3px; }
.product-guide-more .product-guide-links { margin-top: 1px; }

.product-guide-body .article-companion-reading ul {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 40px;
}

.product-guide-body .article-reading-link {
  min-width: 0;
  overflow-wrap: anywhere;
}

/* The Blog library is assembled after the base editorial stylesheet. Keep its
   critical layout here as well so a previously cached base sheet cannot expose
   an unstyled 271-entry index during a production rollout. */
.blog-main > .blog-library-nav,
.blog-main > .blog-index-more,
.blog-main > .decision-guide-index,
.blog-main > .product-guide-index {
  grid-column: 1 / -1;
  width: 100%;
}

.blog-library-nav {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin: 0 0 64px;
  border-block: 1px solid #ded6d4;
}

.blog-library-nav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 72px;
  padding: 0 18px;
  border-right: 1px solid #ded6d4;
  color: inherit;
  font-size: 13px;
  text-decoration: none;
}

.blog-library-nav a:last-child { border-right: 0; }
.blog-library-nav b { color: #8d102a; font: 400 22px/1 var(--serif); }
.blog-index-more { margin-top: 20px; }
.blog-index-more > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  padding: 0 20px;
  border: 1px solid #ded6d4;
  background: #fff;
  color: #8d102a;
  cursor: pointer;
  font-weight: 700;
  letter-spacing: .06em;
  list-style: none;
}
.blog-index-more > summary::-webkit-details-marker { display: none; }
.blog-index-more > summary b { font-size: 22px; font-weight: 400; transition: transform .2s ease; }
.blog-index-more[open] > summary b { transform: rotate(45deg); }
.blog-index-more > summary:focus-visible { outline: 2px solid #8d102a; outline-offset: 3px; }
.blog-index-more > .article-grid { margin-top: 20px; }
#hair-note-index,
#decision-guide-index-title,
.product-guide-index { scroll-margin-top: 96px; }

.product-guide-body .decision-cta {
  display: grid;
  grid-template-columns: 1fr minmax(12rem, 20rem);
  gap: .45rem 2rem;
  align-items: end;
  margin: 0 0 4px;
  padding: clamp(22px, 4vw, 38px);
  background: #8d102a;
  color: #fff;
}

.decision-eyebrow,
.product-guide-body .decision-cta > p {
  margin: 0 0 .8rem;
  color: #9e1731;
  font-size: .73rem;
  font-weight: 700;
  letter-spacing: .16em;
}

.product-guide-body .decision-cta > p {
  grid-column: 1 / -1;
  color: #f3ccd3;
}

.product-guide-body .decision-cta h2 {
  margin: 0;
  font: 400 clamp(1.35rem, 2.4vw, 2.1rem) / 1.35 var(--serif);
}

.product-guide-body .decision-cta > span {
  grid-column: 1 / -1;
  max-width: 60ch;
  line-height: 1.8;
}

.product-guide-body .decision-cta a {
  display: flex;
  grid-column: 2;
  grid-row: 2 / 4;
  align-self: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 48px;
  padding: 1.15rem;
  border: 1px solid rgb(255 255 255 / 75%);
  color: #fff;
  text-decoration: none;
}

@media (max-width: 700px) {
  .product-guide-shell .article-breadcrumb,
  .product-guide-shell .product-guide-header,
  .product-guide-shell .product-guide-body,
  .product-guide-shell .article-end-nav {
    width: 100%;
  }

  .product-guide-shell .product-guide-header {
    gap: 24px;
    padding-block: 24px 0;
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }

  .product-guide-header h1 {
    max-width: none;
    font-size: clamp(25px, 7.2vw, 29px);
    line-height: 1.38;
    letter-spacing: .035em;
    text-wrap: pretty;
  }

  .product-guide-header .article-lead {
    margin-top: 16px;
    font-size: 15px;
    line-height: 1.85;
  }

  .product-guide-header figure {
    width: 100%;
  }

  .product-guide-header figcaption {
    padding: 10px 12px;
    line-height: 1.65;
  }

  .product-guide-shell .product-guide-body {
    padding-top: 40px;
  }

  .product-decision,
  .product-evidence,
  .product-compare,
  .product-next {
    padding-block: 38px;
  }

  .product-decision h2,
  .product-evidence h2,
  .product-compare h2,
  .product-next h2 {
    font-size: 25px;
    line-height: 1.4;
  }

  .product-decision p,
  .product-evidence > p,
  .product-compare p,
  .product-next p {
    font-size: 15px;
    line-height: 1.9;
  }

  .product-guide-header,
  .product-decision ol,
  .product-compare dl,
  .product-palette,
  .product-guide-index,
  .product-guide-links {
    grid-template-columns: 1fr;
  }

  .product-guide-index {
    margin-inline: 20px;
  }

  .product-guide-more { grid-column: 1; }

  .product-guide-body .article-companion-reading ul { grid-template-columns: 1fr; }

  .blog-library-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-inline: 20px;
  }

  .blog-main > .blog-library-nav,
  .blog-main > .product-guide-index {
    width: calc(100% - 40px);
  }

  .blog-library-nav a {
    min-height: 60px;
    padding: 0 12px;
    border-bottom: 1px solid #ded6d4;
    font-size: 12px;
  }

  .product-evidence {
    margin-inline: 0;
    padding-inline: 16px;
  }

  .product-guide-body .decision-cta {
    display: block;
  }

  .product-guide-body .decision-cta h2 {
    margin-bottom: .8rem;
  }

  .product-guide-body .decision-cta a {
    margin-top: 1.2rem;
  }
}