/* Shared front-door presentation for Eterna Femme topic guides. */

.topic-page {
  --topic-ink: #263632;
  --topic-muted: #68736d;
  --topic-paper: #f8f8f3;
  --topic-sand: #eeeae0;
  --topic-sage: #dfe8df;
  --topic-mist: #cbd8cd;
  --topic-line: #c9d1c8;
  --topic-moss: #4f7064;
  --topic-clay: #a66e5b;
  --topic-gold: #b69d68;
}

.topic-page--sleep { --topic-paper: #fbf8f5; --topic-sand: #f1e9e3; --topic-sage: #ead7d1; --topic-mist: #ddc0b8; --topic-moss: #76515e; --topic-clay: #a66e5b; }
.topic-page--metabolic { --topic-paper: #f8f8f3; --topic-sand: #eeeae0; --topic-sage: #e0e7d8; --topic-mist: #cdd8c4; --topic-moss: #5b7054; --topic-clay: #a16f50; }
.topic-page--bone { --topic-paper: #f8f7f2; --topic-sand: #eee9df; --topic-sage: #e1e5df; --topic-mist: #d1d5c8; --topic-moss: #5d6c61; --topic-clay: #9c6e5b; }
.topic-page--sexual { --topic-paper: #fbf7f4; --topic-sand: #f1e5e1; --topic-sage: #eadadd; --topic-mist: #d8bdc5; --topic-moss: #7a5363; --topic-clay: #a66e5b; }
.topic-page--sexual .topic-hero h1 { max-width: 12ch; font-size: clamp(2.65rem, 6vw, 4.9rem); }
.topic-page--sexual .sexual-pathways { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.topic-page--sexual .sexual-pathways .topic-card { display: block; color: inherit; text-decoration: none; }
.topic-page--sexual .sexual-pathways .topic-card:hover { background: var(--topic-sand); }
.topic-page--longevity { --topic-paper: #f5f8f2; --topic-sand: #e9eee6; --topic-sage: #dbe7df; --topic-mist: #c3d7ca; --topic-moss: #4b6b5a; --topic-clay: #a16f50; }
.topic-page--healthy-aging { --topic-ink: #34262b; --topic-muted: #70646a; --topic-paper: #fbf8f7; --topic-sand: #f1e7e9; --topic-sage: #ebe0e2; --topic-mist: #d9bec6; --topic-line: #dfd0d4; --topic-moss: #8b5e6b; --topic-clay: #a66e7b; }
.topic-page--stages { --topic-paper: #fbf8f4; --topic-sand: #f0e7df; --topic-sage: #e5e8dc; --topic-mist: #d6cfc3; --topic-moss: #6d6657; --topic-clay: #a66e5b; }
.topic-page--menopause { --topic-paper: #f8f7f2; --topic-sand: #eeeae0; --topic-sage: #dfe8df; --topic-mist: #cbd8cd; --topic-moss: #4f7064; --topic-clay: #a66e5b; }

.topic-page main { overflow: hidden; }
.topic-page main p { color: var(--topic-muted); }
.topic-page main a { color: var(--topic-moss); }
.topic-page main a:hover { color: var(--color-accent-dark); }
.topic-page main a:focus-visible { outline: 2px solid var(--topic-clay); outline-offset: 4px; }
.topic-page--metabolic main { overflow: visible; }
.topic-page--metabolic .topic-skip-link { position: absolute; top: 0.75rem; left: 1rem; z-index: 200; max-width: calc(100vw - 2rem); box-sizing: border-box; padding: 0.75rem 1rem; background: var(--topic-ink); color: var(--topic-paper); overflow-wrap: anywhere; white-space: normal; transform: translateY(-200%); transition: transform 0.2s ease; }
.topic-page--metabolic .topic-skip-link:focus-visible { color: var(--topic-paper); transform: translateY(0); outline: 3px solid var(--topic-ink); outline-offset: 3px; box-shadow: 0 0 0 6px var(--topic-paper); }
.topic-page--metabolic main a:focus-visible,
.topic-page--metabolic .topic-faq-question:focus-visible { outline: 3px solid var(--topic-ink); outline-offset: 4px; box-shadow: 0 0 0 6px var(--topic-paper); }

.topic-hero {
  padding: clamp(128px, 15vw, 190px) 0 clamp(72px, 10vw, 126px);
  background: radial-gradient(circle at 86% 15%, color-mix(in srgb, var(--topic-mist) 82%, transparent), transparent 34%), var(--topic-paper);
}
.topic-breadcrumb { margin-bottom: clamp(2rem, 4vw, 3.5rem); color: var(--topic-muted, #68736d); font-family: var(--font-sans); font-size: 0.74rem; line-height: 1.4; }
.topic-breadcrumb ol { display: flex; flex-wrap: wrap; align-items: center; gap: 0.3rem 0.7rem; list-style: none; }
.topic-breadcrumb li { display: inline-flex; align-items: center; min-width: 0; }
.topic-breadcrumb li:not(:last-child)::after { content: ''; width: 0.35rem; height: 0.35rem; margin-left: 0.7rem; border-top: 1px solid var(--topic-clay, #a66e5b); border-right: 1px solid var(--topic-clay, #a66e5b); transform: rotate(45deg); }
.topic-breadcrumb a { display: inline-flex; align-items: center; min-height: 2.25rem; color: var(--topic-moss, #4f7064); font-weight: 600; text-decoration: underline; text-decoration-color: color-mix(in srgb, var(--topic-moss, #4f7064) 45%, transparent); text-underline-offset: 0.18em; }
.topic-breadcrumb a:focus-visible { outline: 3px solid var(--topic-ink, #263632); outline-offset: 4px; box-shadow: 0 0 0 6px var(--topic-paper, #f8f8f3); }
.topic-breadcrumb li[aria-current="page"] { color: var(--topic-muted, #68736d); overflow-wrap: anywhere; }
.topic-hero-inner { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(220px, 0.65fr); gap: clamp(48px, 9vw, 132px); align-items: end; }
.topic-hero-copy { max-width: 780px; }
.topic-kicker, .topic-label, .topic-hero-aside-label { font-family: var(--font-sans); font-size: 0.68rem; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase; color: var(--topic-moss) !important; }
.topic-kicker { margin-bottom: 1.25rem; }
.topic-hero h1 { max-width: 13ch; color: var(--topic-ink); font-size: clamp(3rem, 6.7vw, 6.15rem); line-height: 0.99; letter-spacing: -0.035em; }
.topic-page--metabolic #guide-heading { scroll-margin-top: 88px; }
.topic-hero-lead { max-width: 680px; margin-top: 2rem; font-size: clamp(1.05rem, 1.6vw, 1.25rem); line-height: 1.8; }
.topic-hero-note { max-width: 560px; margin-top: 1.6rem; padding-top: 1rem; border-top: 1px solid var(--topic-line); font-size: 0.9rem; font-style: italic; }
.topic-hero-aside { padding: 1.25rem 0 0 1.5rem; border-left: 1px solid var(--topic-line); }
.topic-hero-aside-label { display: block; margin-bottom: 1rem; }
.topic-hero-aside ol { list-style: none; counter-reset: topic-guide; }
.topic-hero-aside li { counter-increment: topic-guide; border-top: 1px solid var(--topic-line); }
.topic-hero-aside li::before { content: counter(topic-guide, decimal-leading-zero); display: inline-block; width: 2.2rem; color: var(--topic-clay); font-family: var(--font-serif); font-size: 0.9rem; }
.topic-hero-aside a { display: inline-block; min-height: 2.5rem; padding: 0.72rem 0; color: var(--topic-ink) !important; font-size: 0.9rem; line-height: 1.35; }
.topic-hero-aside a:hover { color: var(--topic-moss) !important; }
.topic-page--metabolic #guide-contents li.is-active { background: var(--topic-sage); box-shadow: inset 0.25rem 0 var(--topic-clay); }
.topic-page--metabolic #guide-contents li.is-active::before { color: var(--topic-moss); }
.topic-page--metabolic #guide-contents li.is-active a { color: var(--topic-ink) !important; text-decoration: underline; text-decoration-color: var(--topic-clay); text-decoration-thickness: 0.12em; text-underline-offset: 0.18em; }
.topic-page--metabolic .topic-back-to-contents { margin: clamp(2rem, 4vw, 3.25rem) 0 0; }
.topic-page--metabolic .topic-back-to-contents a { display: inline-flex; align-items: center; gap: 0.45rem; min-height: 2.75rem; padding: 0.65rem 0.85rem 0.65rem 0; border-top: 1px solid var(--topic-line); color: var(--topic-muted) !important; font-family: var(--font-sans); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.08em; line-height: 1.35; text-decoration: none; text-transform: uppercase; }
.topic-page--metabolic .topic-back-to-contents a:hover { color: var(--topic-moss) !important; }
.topic-page--metabolic .topic-back-to-contents a span { color: var(--topic-clay); font-size: 1.05rem; line-height: 1; }
.topic-page--metabolic .topic-back-to-contents a:focus-visible { outline: 3px solid var(--topic-ink); outline-offset: 4px; box-shadow: 0 0 0 6px var(--topic-paper); }
.topic-page--metabolic .topic-back-to-top { position: fixed; right: clamp(1rem, 3vw, 2rem); bottom: clamp(1rem, 3vw, 2rem); z-index: 50; display: inline-flex; align-items: center; justify-content: center; gap: 0.45rem; min-height: 2.75rem; padding: 0.65rem 0.85rem; border: 1px solid var(--topic-line); background: var(--topic-paper); color: var(--topic-moss); font-family: var(--font-sans); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.08em; line-height: 1.35; text-transform: uppercase; cursor: pointer; box-shadow: 0 6px 18px rgba(38, 54, 50, 0.12); transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease; }
.topic-page--metabolic .topic-back-to-top[hidden] { display: none; }
.topic-page--metabolic .topic-back-to-top:hover { background: var(--topic-sand); border-color: var(--topic-clay); color: var(--topic-ink); }
.topic-page--metabolic .topic-back-to-top:focus-visible { outline: 3px solid var(--topic-ink); outline-offset: 4px; box-shadow: 0 0 0 6px var(--topic-paper); }
.topic-page--metabolic .topic-back-to-top span:first-child { color: var(--topic-clay); font-size: 1.05rem; line-height: 1; }
.topic-copy-row { display: flex; flex-wrap: wrap; align-items: center; gap: 0.65rem; max-width: 100%; margin-top: 1rem; }
.topic-copy-button { display: inline-flex; align-items: center; justify-content: center; min-height: 2.75rem; padding: 0.65rem 0.85rem; border: 1px solid var(--topic-line); background: transparent; color: var(--topic-moss); font-family: var(--font-sans); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.08em; line-height: 1.35; text-transform: uppercase; cursor: pointer; transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease; }
.topic-copy-button:hover { background: var(--topic-sand); border-color: var(--topic-clay); color: var(--topic-ink); }
.topic-copy-button:focus-visible { outline: 3px solid var(--topic-ink); outline-offset: 4px; box-shadow: 0 0 0 6px var(--topic-paper); }
.topic-copy-status { min-width: 0; min-height: 1.35rem; color: var(--topic-muted); font-family: var(--font-sans); font-size: 0.78rem; line-height: 1.5; overflow-wrap: anywhere; }
.topic-section--ink .topic-copy-button { border-color: rgba(248, 248, 243, 0.45); color: var(--topic-paper); }
.topic-section--ink .topic-copy-button:hover { background: rgba(248, 248, 243, 0.12); border-color: var(--topic-mist); color: var(--topic-paper); }
.topic-section--ink .topic-copy-button:focus-visible { outline-color: var(--topic-paper); box-shadow: 0 0 0 6px var(--topic-ink); }
.topic-section--ink .topic-copy-status { color: var(--topic-mist); }

.topic-page--metabolic .topic-takeaways { padding: clamp(1.65rem, 3.5vw, 2.7rem) 0; background: color-mix(in srgb, var(--topic-sand) 58%, var(--topic-paper)); border-top: 1px solid var(--topic-line); border-bottom: 1px solid var(--topic-line); }
.topic-page--metabolic .topic-takeaways-inner { display: grid; grid-template-columns: minmax(170px, 0.45fr) minmax(0, 1.55fr); gap: clamp(32px, 7vw, 100px); align-items: start; }
.topic-page--metabolic .topic-takeaways-intro h2 { max-width: 12ch; margin-top: 0.55rem; color: var(--topic-ink); font-size: clamp(1.55rem, 2.8vw, 2.25rem); line-height: 1.08; letter-spacing: -0.02em; }
.topic-page--metabolic .topic-takeaways-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--topic-line); }
.topic-page--metabolic .topic-takeaways-list li { border-bottom: 1px solid var(--topic-line); }
.topic-page--metabolic .topic-takeaways-list a { display: block; min-height: 3rem; padding: 0.8rem 2rem 0.8rem 0; color: var(--topic-ink); font-size: 0.95rem; line-height: 1.55; text-decoration: none; }
.topic-page--metabolic .topic-takeaways-list a:hover { color: var(--topic-moss); }

.topic-section, .topic-research-bridge, .topic-orientation { scroll-margin-top: 88px; }
.topic-section { padding: clamp(70px, 10vw, 130px) 0; }
.topic-section--paper { background: var(--topic-paper); }
.topic-section--sand { background: var(--topic-sand); }
.topic-section--sage { background: var(--topic-sage); }
.topic-section--ink { background: var(--topic-ink); }
.topic-reading-grid, .topic-closer-look, .topic-orientation-grid { display: grid; grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr); gap: clamp(40px, 10vw, 150px); align-items: start; }
.topic-section-intro h2, .topic-closer-look h2, .topic-section-heading h2, .topic-evidence-heading h2, .topic-research-inner h2, .topic-orientation h2 { max-width: 15ch; margin-top: 0.65rem; color: var(--topic-ink); font-size: clamp(2rem, 4vw, 3.5rem); line-height: 1.05; letter-spacing: -0.025em; }
.topic-prose { max-width: 680px; }
.topic-prose p, .topic-closer-content > p { margin-bottom: 1.3rem; font-size: 1rem; line-height: 1.85; }
.topic-prose p:last-child, .topic-closer-content > p:last-child { margin-bottom: 0; }
.topic-pullquote { margin-top: 2.2rem; padding: 1.3rem 0 0 1.25rem; border-top: 1px solid var(--topic-line); border-left: 2px solid var(--topic-clay); color: var(--topic-ink) !important; font-family: var(--font-serif); font-size: 1.35rem !important; line-height: 1.45 !important; }
.topic-section-heading { max-width: 720px; margin-bottom: 3rem; }
.topic-section-heading > p:last-child, .topic-evidence-heading > p:last-child { max-width: 680px; margin-top: 1.2rem; line-height: 1.8; }
.topic-section-heading--narrow { max-width: 700px; }

.topic-pattern-list, .topic-card-grid, .topic-attention-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.topic-pattern-list, .topic-attention-list { border-top: 1px solid var(--topic-line); }
.topic-pattern { display: grid; grid-template-columns: 2.8rem minmax(0, 1fr); gap: 0.8rem; padding: 1.6rem 1.2rem 1.7rem 0; border-bottom: 1px solid var(--topic-line); }
.topic-pattern:nth-child(odd) { border-right: 1px solid var(--topic-line); padding-right: 2rem; }
.topic-pattern:nth-child(even) { padding-left: 2rem; }
.topic-pattern-number, .topic-card-mark { color: var(--topic-clay); font-family: var(--font-serif); font-size: 1.25rem; }
.topic-pattern h3, .topic-card h3, .topic-attention-row h3 { margin-bottom: 0.45rem; color: var(--topic-ink); font-size: 1.25rem; }
.topic-pattern p, .topic-card p, .topic-attention-row p { font-size: 0.9rem; line-height: 1.7; }
.topic-card-grid { gap: 1px; background: var(--topic-line); }
.topic-card { min-width: 0; padding: 1.6rem; background: var(--topic-paper); }
.topic-card-mark { display: block; margin-bottom: 1.3rem; }
.topic-card h3 { font-size: 1.35rem; }
.topic-attention-row { display: grid; grid-template-columns: minmax(145px, 0.55fr) minmax(0, 1fr); gap: 1.5rem; padding: 1.35rem 0; border-bottom: 1px solid var(--topic-line); }
.topic-attention-row h3 { margin: 0; font-size: 1.1rem; }
.topic-page--metabolic .topic-section--metabolic-questions .topic-reading-grid { gap: clamp(32px, 7vw, 96px); padding: clamp(1.5rem, 3.5vw, 2.75rem); background: var(--topic-sage); border: 1px solid var(--topic-line); border-left: 4px solid var(--topic-clay); }
.topic-page--metabolic .topic-section--metabolic-questions .topic-section-intro,
.topic-page--metabolic .topic-section--metabolic-questions .topic-attention-list,
.topic-page--metabolic .topic-section--metabolic-questions .topic-attention-row { min-width: 0; }
.topic-page--metabolic .topic-section--metabolic-questions .topic-attention-row h3,
.topic-page--metabolic .topic-section--metabolic-questions .topic-attention-row p { overflow-wrap: anywhere; }

.topic-evidence-heading h2 { color: var(--topic-paper); }
.topic-label--light { color: var(--topic-mist) !important; }
.topic-evidence-heading > p:last-child { color: rgba(248, 248, 243, 0.72) !important; }
.topic-evidence-groups { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; margin-top: 3.3rem; background: rgba(203, 216, 205, 0.35); }
.topic-evidence-group { min-width: 0; padding: 1.7rem 1.6rem 1.8rem; background: var(--topic-ink); }
.topic-evidence-status { margin-bottom: 1.7rem; font-family: var(--font-sans); font-size: 0.68rem !important; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; }
.topic-evidence-status--established { color: #c9d8ba !important; }
.topic-evidence-status--emerging { color: #d9c58f !important; }
.topic-evidence-status--unknown { color: #dfb4a1 !important; }
.topic-evidence-group h3 { margin-bottom: 0.8rem; color: var(--topic-paper); font-size: 1.45rem; line-height: 1.2; }
.topic-evidence-group > p:last-child { color: rgba(248, 248, 243, 0.7) !important; font-size: 0.9rem; line-height: 1.75; }

.topic-closer-look { align-items: center; }
.topic-closer-content { padding: clamp(1.5rem, 4vw, 3rem); background: rgba(255, 255, 255, 0.58); border: 1px solid var(--topic-line); border-left: 3px solid var(--topic-clay); }
.topic-look-list { margin: 1.5rem 0 1.6rem; padding-left: 1.2rem; color: var(--topic-muted); }
.topic-look-list li { padding: 0.35rem 0 0.35rem 0.3rem; font-size: 0.92rem; line-height: 1.7; }
.topic-look-list strong { color: var(--topic-ink); font-weight: 600; }
.topic-faq { max-width: 900px; }
.topic-faq-list { border-top: 1px solid var(--topic-line); }
.topic-faq-item { border-bottom: 1px solid var(--topic-line); }
.topic-faq-question { display: flex; align-items: center; gap: 1.2rem; min-height: 4.5rem; padding: 1.25rem 2.75rem 1.25rem 0; cursor: pointer; list-style: none; color: var(--topic-ink); font-family: var(--font-serif); font-size: clamp(1.2rem, 2.3vw, 1.55rem); line-height: 1.25; transition: color 0.2s ease; }
.topic-faq-question::-webkit-details-marker { display: none; }
.topic-faq-question::marker { content: ''; }
.topic-faq-question::after { content: '+'; flex: 0 0 auto; margin-left: auto; color: var(--topic-clay); font-family: var(--font-sans); font-size: 1.45rem; font-weight: 400; line-height: 1; }
.topic-faq-item[open] .topic-faq-question::after { content: '−'; }
.topic-faq-question:hover { color: var(--topic-moss); }
.topic-faq-question:focus-visible { outline: 2px solid var(--topic-clay); outline-offset: 4px; }
.topic-faq-answer { max-width: 720px; margin: 0; padding: 0 3.25rem 1.5rem 0; color: var(--topic-muted); font-size: 0.95rem; line-height: 1.8; }
.topic-glossary { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 3rem; max-width: 1040px; border-top: 1px solid var(--topic-line); }
.topic-glossary-entry { min-width: 0; padding: 1.45rem 0 1.55rem; border-bottom: 1px solid var(--topic-line); }
.topic-glossary-entry dt { margin-bottom: 0.55rem; color: var(--topic-ink); font-family: var(--font-serif); font-size: clamp(1.25rem, 2vw, 1.6rem); line-height: 1.2; overflow-wrap: anywhere; }
.topic-glossary-entry dd { max-width: 42ch; margin: 0; color: var(--topic-muted); font-size: 0.95rem; line-height: 1.75; overflow-wrap: anywhere; }
.topic-source-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; margin-top: 3rem; background: var(--topic-line); }
.topic-source-card { display: flex; flex-direction: column; min-width: 0; padding: 1.6rem; background: var(--topic-paper); }
.topic-source-context { margin-bottom: 0.85rem; color: var(--topic-moss) !important; font-family: var(--font-sans); font-size: 0.68rem !important; font-weight: 600; letter-spacing: 0.1em; line-height: 1.5; text-transform: uppercase; }
.topic-source-card h3 { margin-bottom: 1.35rem; color: var(--topic-ink); font-size: 1.3rem; line-height: 1.25; }
.topic-source-context, .topic-source-card h3, .topic-source-link { min-width: 0; max-width: 100%; overflow-wrap: anywhere; }
.topic-source-link { display: inline-flex; align-items: baseline; gap: 0.45rem; width: fit-content; margin-top: auto; color: var(--topic-ink) !important; border-bottom: 1px solid var(--topic-line); font-size: 0.88rem; font-weight: 600; line-height: 1.55; text-decoration: underline; text-decoration-color: var(--topic-moss); text-underline-offset: 0.2em; }
.topic-source-link::after { content: '↗'; color: var(--topic-clay); font-size: 1rem; }
.topic-source-link:focus-visible { outline: 3px solid var(--topic-ink); outline-offset: 4px; box-shadow: 0 0 0 6px var(--topic-paper); }
.topic-research-bridge { padding: clamp(70px, 9vw, 112px) 0; background: var(--topic-mist); }
.topic-research-inner { max-width: 780px; }
.topic-research-inner h2 { max-width: 18ch; }
.topic-research-inner > p:last-child { max-width: 700px; margin-top: 1.25rem; line-height: 1.8; }
.topic-research-inner a { border-bottom: 1px solid currentColor; }
.topic-research-bridge--related { padding: clamp(42px, 5vw, 64px) 0; background: var(--topic-paper); border-top: 1px solid var(--topic-line); border-bottom: 1px solid var(--topic-line); }
.topic-research-bridge--related .topic-research-inner h2 { max-width: 24ch; font-size: clamp(1.65rem, 3vw, 2.5rem); }
.topic-research-bridge--related .topic-research-related-link { color: var(--topic-ink); font-weight: 600; }
.topic-research-bridge--related .topic-research-related-link:hover { color: var(--topic-moss); }
.topic-research-bridge--related .topic-research-source-link { color: var(--topic-muted); border-bottom-color: var(--topic-line); font-size: 0.92rem; }
.topic-research-bridge--related .topic-research-related-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; margin-top: 2rem; background: var(--topic-line); }
.topic-research-bridge--related .topic-research-related-card { display: flex; flex-direction: column; min-width: 0; min-height: 100%; padding: 1.35rem 1.4rem 1.25rem; background: var(--topic-paper); border-bottom: 0; color: var(--topic-ink); transition: background-color 0.2s ease, color 0.2s ease; }
.topic-research-bridge--related .topic-research-related-card h3 { margin-bottom: 0.65rem; color: var(--topic-ink); font-size: 1.1rem; line-height: 1.25; }
.topic-research-bridge--related .topic-research-related-card p { margin: 0; color: var(--topic-muted); font-size: 0.84rem; line-height: 1.65; }
.topic-research-bridge--related .topic-research-related-card-arrow { display: block; margin-top: auto; padding-top: 1.15rem; color: var(--topic-clay); font-size: 1.1rem; line-height: 1; }
.topic-research-bridge--related .topic-research-related-card:hover { background: var(--topic-sage); color: var(--topic-ink); }
.topic-research-bridge--related .topic-research-related-card:focus-visible { outline: 2px solid var(--topic-clay); outline-offset: -2px; }
.topic-page--metabolic .topic-research-bridge--related .topic-research-related-card:focus-visible { outline: 3px solid var(--topic-ink); outline-offset: 4px; box-shadow: 0 0 0 6px var(--topic-paper); }
.topic-page--metabolic .topic-guide-footer-nav { padding: clamp(42px, 5vw, 64px) 0; background: var(--topic-mist); border-top: 1px solid var(--topic-line); }
.topic-page--metabolic .topic-guide-footer-nav h2 { max-width: 18ch; margin-top: 0.6rem; color: var(--topic-ink); font-size: clamp(1.65rem, 3vw, 2.5rem); line-height: 1.1; }
.topic-page--metabolic .topic-guide-footer-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; margin: 2rem 0 0; padding: 0; list-style: none; background: var(--topic-line); }
.topic-page--metabolic .topic-guide-footer-link { display: flex; align-items: center; min-width: 0; min-height: 2.75rem; padding: 0.75rem 1rem; background: var(--topic-paper); color: var(--topic-ink) !important; font-family: var(--font-sans); font-size: 0.86rem; font-weight: 600; line-height: 1.45; overflow-wrap: anywhere; text-decoration: none; transition: background-color 0.2s ease, color 0.2s ease; }
.topic-page--metabolic .topic-guide-footer-link:hover { background: var(--topic-sage); color: var(--topic-ink) !important; }
.topic-page--metabolic .topic-guide-footer-link:focus-visible { outline: 3px solid var(--topic-ink); outline-offset: 4px; box-shadow: 0 0 0 6px var(--topic-mist); }
.education-topic-navigation { padding: clamp(32px, 5vw, 56px) 0; background: var(--topic-mist, var(--brain-mist, #cbd8cd)); border-top: 1px solid var(--topic-line, var(--brain-line, #c9d1c8)); }
.education-topic-navigation__inner { display: flex; justify-content: space-between; gap: 1rem; }
.education-topic-navigation__link { display: flex; flex-direction: column; gap: 0.45rem; max-width: min(48%, 440px); min-width: 0; padding: 1rem 1.2rem; background: var(--topic-paper, var(--brain-paper, #f8f8f3)); border: 1px solid var(--topic-line, var(--brain-line, #c9d1c8)); color: var(--topic-ink, var(--brain-ink, #263632)) !important; text-decoration: none; transition: background-color 0.2s ease, border-color 0.2s ease; }
.education-topic-navigation__link--next { margin-left: auto; text-align: right; }
.education-topic-navigation__link:hover { background: var(--topic-sage, var(--brain-sage, #dfe8df)); border-color: var(--topic-clay, var(--brain-clay, #a66e5b)); }
.education-topic-navigation__link:focus-visible { outline: 3px solid var(--topic-ink, var(--brain-ink, #263632)); outline-offset: 4px; box-shadow: 0 0 0 6px var(--topic-mist, var(--brain-mist, #cbd8cd)); }
.education-topic-navigation__direction { color: var(--topic-moss, var(--brain-moss, #4f7064)); font-family: var(--font-sans); font-size: 0.68rem; font-weight: 600; letter-spacing: 0.1em; line-height: 1.45; text-transform: uppercase; }
.education-topic-navigation__label { color: var(--topic-ink, var(--brain-ink, #263632)); font-size: 1rem; font-weight: 600; line-height: 1.45; overflow-wrap: anywhere; }
.topic-orientation { background: var(--topic-paper); }
.topic-orientation-copy { max-width: 680px; }
.topic-orientation-copy p { margin-bottom: 1.2rem; line-height: 1.8; }
.topic-index-list { list-style: none; border-top: 1px solid var(--topic-line); }
.topic-index-list li { border-bottom: 1px solid var(--topic-line); }
.topic-index-list a { display: flex; justify-content: space-between; gap: 1rem; padding: 0.9rem 0; color: var(--topic-ink); }
.topic-index-list a::after { content: '↗'; color: var(--topic-clay); }
.topic-index-list a:hover { color: var(--topic-moss); }

@media (max-width: 760px) {
  .topic-hero { padding-top: 104px; }
  .topic-hero-inner, .topic-reading-grid, .topic-closer-look, .topic-orientation-grid { grid-template-columns: 1fr; gap: 42px; }
  .topic-page--metabolic .topic-takeaways-inner { grid-template-columns: 1fr; gap: 1rem; }
  .topic-page--sexual .sexual-pathways { grid-template-columns: 1fr; }
  .topic-hero h1 { max-width: 11ch; font-size: clamp(3rem, 14vw, 5rem); }
  .topic-hero-lead { margin-top: 1.5rem; }
  .topic-breadcrumb { margin-bottom: 2rem; }
  .topic-breadcrumb ol { align-items: flex-start; flex-wrap: wrap; row-gap: 0.2rem; }
  .topic-breadcrumb li[aria-current="page"] { max-width: 100%; }
  .topic-breadcrumb a { min-height: 2.75rem; }
  .topic-hero-aside { padding: 1.25rem 0 0; border-top: 1px solid var(--topic-line); border-left: 0; }
  .topic-section-intro h2, .topic-closer-look h2, .topic-section-heading h2, .topic-evidence-heading h2, .topic-research-inner h2, .topic-orientation h2 { max-width: 18ch; }
  .topic-pattern-list, .topic-card-grid, .topic-evidence-groups, .topic-glossary, .topic-source-list { grid-template-columns: 1fr; }
  .topic-source-card, .topic-source-context, .topic-source-card h3, .topic-source-link { min-width: 0; max-width: 100%; overflow-wrap: anywhere; }
  .topic-pattern:nth-child(odd) { border-right: 0; padding-right: 0; }
  .topic-pattern:nth-child(even) { padding-left: 0; }
  .topic-pattern { padding: 1.35rem 0; }
  .topic-attention-row { grid-template-columns: 1fr; gap: 0.35rem; }
  .topic-page--metabolic .topic-section--metabolic-questions .topic-reading-grid { gap: 2rem; padding: 1.15rem 1rem 1.35rem 1.15rem; }
  .topic-page--metabolic .topic-section--metabolic-questions .topic-attention-row { gap: 0.35rem; padding: 1rem 0; }
  .topic-page--metabolic .topic-section--metabolic-questions .topic-copy-row { max-width: 100%; }
  .topic-page--metabolic .topic-pattern p,
  .topic-page--metabolic .topic-card p,
  .topic-page--metabolic .topic-attention-row p { font-size: 1rem; line-height: 1.75; }
  .topic-page--metabolic .topic-evidence-group > p:last-child { font-size: 1rem; line-height: 1.75; }
  .topic-page--metabolic .topic-research-bridge--related .topic-research-related-card p { font-size: 0.95rem; line-height: 1.7; }
  .topic-page--metabolic .topic-hero-aside a { font-size: 0.95rem; line-height: 1.5; }
  .topic-page--metabolic .topic-back-to-contents a { min-height: 2.75rem; padding-top: 0.7rem; padding-bottom: 0.7rem; }
  .topic-page--metabolic .topic-back-to-top { right: 1rem; bottom: 1rem; padding-right: 0.75rem; padding-left: 0.75rem; }
  .topic-page--metabolic .topic-copy-row { align-items: flex-start; }
  .topic-page--metabolic .topic-copy-button { min-height: 2.75rem; }
  .topic-page--metabolic .topic-copy-status { max-width: 100%; }
  .topic-page--metabolic .topic-takeaways-list a { min-height: 3.25rem; padding: 0.9rem 0; font-size: 1rem; line-height: 1.7; }
  .topic-faq-question { min-height: 4.75rem; padding-right: 2.25rem; font-size: 1.2rem; }
  .topic-faq-answer { padding-right: 0; font-size: 0.95rem; line-height: 1.75; }
  .topic-page--metabolic .topic-glossary-entry { padding: 1.25rem 0 1.35rem; }
  .topic-page--metabolic .topic-glossary-entry dd { font-size: 1rem; line-height: 1.75; }
  .topic-research-bridge--related { padding: 38px 0; }
  .topic-research-bridge--related .topic-research-inner > p:last-child { max-width: 36ch; }
  .topic-research-bridge--related .topic-research-related-grid { grid-template-columns: 1fr; }
  .topic-page--metabolic .topic-guide-footer-links { grid-template-columns: 1fr; }
  .education-topic-navigation__inner { flex-direction: column; }
  .education-topic-navigation__link { max-width: none; }
  .education-topic-navigation__link--next { margin-left: 0; text-align: left; }
}

@media (max-width: 375px) {
  .topic-hero h1 { font-size: 2.85rem; }
  .topic-page--sexual .topic-hero h1 { font-size: 2.65rem; }
  .topic-section { padding: 62px 0; }
  .topic-hero-aside a { min-height: 2.75rem; font-size: 0.84rem; }
  .topic-page--metabolic .topic-hero-aside a { font-size: 0.95rem; line-height: 1.5; }
  .topic-page--metabolic .topic-copy-row { gap: 0.5rem; }
  .topic-closer-content { padding: 1.25rem; }
  .topic-faq-question { min-height: 4.5rem; padding-top: 1.1rem; padding-bottom: 1.1rem; }
  .topic-research-bridge--related { padding: 34px 0; }
  .topic-research-bridge--related .topic-research-inner h2 { font-size: 1.55rem; }
  .topic-research-bridge--related .topic-research-related-grid { margin-top: 1.5rem; }
  .topic-research-bridge--related .topic-research-related-card { padding: 1.15rem 1.2rem; }
}

@media print {
  @page { margin: 0.65in; }

  .topic-page--metabolic {
    background: #fff !important;
    color: #202a26 !important;
    font-size: 10.5pt;
    line-height: 1.5;
    overflow: visible !important;
  }

  .topic-page--metabolic > nav,
  .topic-page--metabolic .topic-skip-link,
  .topic-breadcrumb,
  .topic-page--metabolic .topic-hero-aside,
  .topic-page--metabolic .topic-back-to-contents,
  .topic-page--metabolic .topic-back-to-top,
  .topic-page--metabolic .topic-copy-row,
  .topic-page--metabolic .topic-copy-button,
  .topic-page--metabolic .topic-copy-status,
  .topic-page--metabolic .topic-research-bridge,
  .topic-page--metabolic .topic-guide-footer-nav,
  .topic-page--metabolic > footer {
    display: none !important;
  }

  .topic-page--metabolic main,
  .topic-page--metabolic .topic-hero,
  .topic-page--metabolic .topic-section,
  .topic-page--metabolic .topic-section--ink,
  .topic-page--metabolic .topic-section--paper,
  .topic-page--metabolic .topic-section--sand,
  .topic-page--metabolic .topic-section--sage,
  .topic-page--metabolic .topic-takeaways,
  .topic-page--metabolic .topic-closer-content,
  .topic-page--metabolic .topic-card,
  .topic-page--metabolic .topic-evidence-group,
  .topic-page--metabolic .topic-source-card {
    background: #fff !important;
    color: #202a26 !important;
  }

  .topic-page--metabolic main {
    overflow: visible !important;
  }

  .topic-page--metabolic .topic-hero {
    padding: 0 0 1.15rem;
  }

  .topic-page--metabolic .topic-takeaways {
    padding: 0.8rem 0;
    border-color: #d6ddd7;
  }

  .topic-page--metabolic .topic-takeaways-inner {
    display: block;
  }

  .topic-page--metabolic .topic-takeaways-intro h2 {
    margin-top: 0.35rem;
    font-size: 16pt;
  }

  .topic-page--metabolic .topic-takeaways-list {
    margin-top: 0.5rem;
    border-top: 0;
  }

  .topic-page--metabolic .topic-takeaways-list li {
    break-inside: avoid;
    page-break-inside: avoid;
    border-color: #d6ddd7;
  }

  .topic-page--metabolic .topic-takeaways-list a {
    min-height: 0;
    padding: 0.35rem 0;
    line-height: 1.55;
  }

  .topic-page--metabolic .topic-hero-inner,
  .topic-page--metabolic .topic-reading-grid,
  .topic-page--metabolic .topic-closer-look,
  .topic-page--metabolic .topic-orientation-grid,
  .topic-page--metabolic .topic-pattern-list,
  .topic-page--metabolic .topic-card-grid,
  .topic-page--metabolic .topic-attention-list,
  .topic-page--metabolic .topic-evidence-groups,
  .topic-page--metabolic .topic-glossary,
  .topic-page--metabolic .topic-source-list {
    display: block;
    grid-template-columns: 1fr;
    gap: 0;
  }

  .topic-page--metabolic .topic-section {
    padding: 1.25rem 0;
  }

  .topic-page--metabolic .topic-section-heading {
    margin-bottom: 1rem;
  }

  .topic-page--metabolic main h1,
  .topic-page--metabolic main h2,
  .topic-page--metabolic main h3,
  .topic-page--metabolic main dt {
    color: #202a26 !important;
  }

  .topic-page--metabolic main p,
  .topic-page--metabolic main li,
  .topic-page--metabolic main dd {
    color: #3e4944 !important;
  }

  .topic-page--metabolic .topic-hero h1 {
    max-width: none;
    font-size: 28pt;
  }

  .topic-page--metabolic .topic-hero-lead {
    max-width: 680px;
    margin-top: 0.9rem;
    font-size: 11pt;
    line-height: 1.55;
  }

  .topic-page--metabolic .topic-hero-note {
    margin-top: 0.8rem;
    padding-top: 0;
    border-top: 0;
  }

  .topic-page--metabolic .topic-prose p,
  .topic-page--metabolic .topic-closer-content > p {
    margin-bottom: 0.7rem;
    line-height: 1.55;
  }

  .topic-page--metabolic .topic-pattern,
  .topic-page--metabolic .topic-card,
  .topic-page--metabolic .topic-evidence-group,
  .topic-page--metabolic .topic-attention-row,
  .topic-page--metabolic .topic-faq-item,
  .topic-page--metabolic .topic-glossary-entry,
  .topic-page--metabolic .topic-source-card {
    break-inside: avoid;
    page-break-inside: avoid;
  }

  .topic-page--metabolic main h1,
  .topic-page--metabolic main h2,
  .topic-page--metabolic main h3,
  .topic-page--metabolic main dt,
  .topic-page--metabolic .topic-section-heading,
  .topic-page--metabolic .topic-section-intro,
  .topic-page--metabolic .topic-faq-question {
    break-after: avoid;
    page-break-after: avoid;
  }

  .topic-page--metabolic .topic-pattern-list,
  .topic-page--metabolic .topic-attention-list,
  .topic-page--metabolic .topic-faq-list,
  .topic-page--metabolic .topic-glossary {
    border-top: 0;
  }

  .topic-page--metabolic .topic-pattern,
  .topic-page--metabolic .topic-attention-row,
  .topic-page--metabolic .topic-faq-item,
  .topic-page--metabolic .topic-glossary-entry {
    border-color: #d6ddd7;
  }

  .topic-page--metabolic .topic-card,
  .topic-page--metabolic .topic-evidence-group,
  .topic-page--metabolic .topic-source-card,
  .topic-page--metabolic .topic-closer-content {
    margin-bottom: 0.65rem;
    border: 1px solid #d6ddd7;
    border-left-width: 1px;
  }

  .topic-page--metabolic .topic-section--metabolic-questions .topic-reading-grid {
    margin-bottom: 0.65rem;
    padding: 0.9rem 1rem;
    background: #fff !important;
    border: 1px solid #d6ddd7;
    border-left: 3px solid #68736d;
    overflow: visible;
  }

  .topic-page--metabolic .topic-card,
  .topic-page--metabolic .topic-evidence-group,
  .topic-page--metabolic .topic-source-card {
    padding: 0.9rem 1rem;
  }

  .topic-page--metabolic .topic-source-list {
    margin-top: 1rem;
    background: transparent;
  }

  .topic-page--metabolic .topic-card-grid,
  .topic-page--metabolic .topic-evidence-groups {
    background: transparent;
  }

  .topic-page--metabolic .topic-source-card h3 {
    margin-bottom: 0.55rem;
  }

  .topic-page--metabolic .topic-closer-content {
    padding: 1rem;
  }

  .topic-page--metabolic .topic-pullquote {
    padding: 0;
    border: 0;
  }

  .topic-page--metabolic .topic-faq-question {
    min-height: 0;
    padding: 0.65rem 0;
    cursor: default;
  }

  .topic-page--metabolic details.topic-faq-item > .topic-faq-answer,
  .topic-page--metabolic details.topic-faq-item:not([open]) > .topic-faq-answer {
    display: block !important;
    max-width: 720px;
    padding: 0 0 0.8rem;
    line-height: 1.55;
  }

  .topic-page--metabolic .topic-faq-question::after,
  .topic-page--metabolic .topic-faq-question::-webkit-details-marker,
  .topic-page--metabolic .topic-research-related-card-arrow,
  .topic-page--metabolic .topic-index-list a::after {
    display: none !important;
    content: none !important;
  }

  .topic-page--metabolic .topic-source-link {
    display: inline;
    width: auto;
    margin-top: 0.35rem;
    border: 0;
    overflow-wrap: anywhere;
    text-decoration: underline;
  }

  .topic-page--metabolic .topic-source-link::after {
    display: inline;
    content: " (" attr(href) ")" !important;
    color: inherit !important;
    font-size: inherit;
  }

  .topic-page--metabolic main a {
    color: #202a26 !important;
    text-decoration: underline;
  }

  .topic-page--metabolic main a:hover,
  .topic-page--metabolic main a:focus,
  .topic-page--metabolic main a:focus-visible,
  .topic-page--metabolic .topic-faq-question:hover,
  .topic-page--metabolic .topic-faq-question:focus,
  .topic-page--metabolic .topic-faq-question:focus-visible {
    color: #202a26 !important;
    outline: 0 !important;
    box-shadow: none !important;
  }

  .topic-page--metabolic *,
  .topic-page--metabolic *::before,
  .topic-page--metabolic *::after {
    box-shadow: none !important;
    text-shadow: none !important;
    transition: none !important;
    backdrop-filter: none !important;
  }
}