:root {
    --ink: #131816;
    --muted: #526058;
    --accent: #087638;
    --accent-dark: #05592a;
    --soft: #eef6e7;
    --line: #dee6dc;
    --page-width: 1320px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 98px; }
body { margin: 0; color: var(--ink); background: #fff; font-family: Arial, Helvetica, sans-serif; font-size: 17px; line-height: 1.65; -webkit-font-smoothing: antialiased; }
button, input { font: inherit; }
a { color: var(--accent); text-underline-offset: 4px; }
a:hover { color: var(--accent-dark); }
button, a, summary { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
button:focus-visible, a:focus-visible, summary:focus-visible { outline: 3px solid #73a55b; outline-offset: 5px; }
img { display: block; max-width: 100%; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.15; letter-spacing: -.035em; }
h1 { font-size: clamp(32px, 3.35vw, 49px); font-weight: 750; margin-bottom: 20px; }
h2 { font-size: clamp(28px, 2.8vw, 40px); margin-bottom: 23px; }
h3 { font-size: 23px; margin-bottom: 14px; }
p { margin-bottom: 20px; }
sup { font-size: 11px; padding-left: 3px; }
.wrap, .header-inner { width: min(var(--page-width), calc(100% - 88px)); margin-inline: auto; }
.skip-link { position: fixed; top: -80px; left: 15px; z-index: 100; padding: 10px 20px; background: #fff; }
.skip-link:focus { top: 12px; }
.site-header { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.97); border-bottom: 1px solid #edf0eb; }
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 80px; gap: 30px; }
.brand { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; color: #0d130e; font-weight: 750; font-size: 25px; line-height: 1; letter-spacing: -.055em; text-decoration: none; }
.brand-mark { width: 25px; height: 25px; border-radius: 50%; background: #48b526; flex: 0 0 auto; }
.site-nav { display: flex; align-items: center; gap: clamp(15px, 2vw, 30px); }
.site-nav a { color: #17221a; font-size: 15px; text-decoration: none; white-space: nowrap; }
.site-nav a:hover { color: var(--accent); }
.header-link { display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; flex-shrink: 0; }
.search-panel { position: relative; flex-shrink: 0; color: var(--accent); }
.search-panel > summary { cursor: pointer; list-style: none; }
.search-panel > summary::-webkit-details-marker { display: none; }
.search-box { position: absolute; right: 0; top: 52px; width: min(360px, calc(100vw - 36px)); padding: 22px; border: 1px solid var(--line); background: #fff; box-shadow: 0 12px 32px #193a1720; border-radius: 12px; }
.search-box label { display: block; font-size: 15px; font-weight: 700; color: var(--ink); margin-bottom: 10px; }
.search-box input { width: 100%; min-height: 44px; border: 1px solid #b4c5b1; border-radius: 7px; padding: 9px 11px; font-size: 14px; }
.search-box ul { padding-left: 0; list-style: none; margin: 12px 0 0; font-size: 14px; max-height: 290px; overflow-y: auto; }
.search-box li { padding-block: 6px; }
.menu-toggle { display: none; }
.opening { display: grid; grid-template-columns: 1fr 1.03fr; gap: 45px; align-items: center; padding-block: 34px 30px; }
.opening-copy { padding-block: 15px; }
.opening h1 span { color: var(--accent); }
.opening p { font-size: 19px; line-height: 1.55; max-width: 590px; margin-bottom: 25px; }
.opening-image { width: 100%; height: auto; aspect-ratio: 1.68; object-fit: cover; border-radius: 17px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 21px; padding: 12px 26px; border-radius: 14px; background: var(--accent); color: #fff; font-size: 17px; font-weight: 700; text-decoration: none; }
.button:hover { color: #fff; background: var(--accent-dark); }
.topics { padding-block: 0 55px; }
.topic-filters { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 25px; }
.filter { min-height: 40px; padding: 7px 21px; background: var(--soft); color: #153a20; border: 0; border-radius: 10px; font-size: 15px; font-weight: 700; }
.filter.active, .filter:hover { background: var(--accent); color: #fff; }
.topic-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 23px; }
.topic-card[hidden] { display: none; }
.topic-card { min-width: 0; }
.image-link { display: block; overflow: hidden; border-radius: 12px; background: #f0f2ed; margin-bottom: 13px; }
.image-link img { width: 100%; height: auto; aspect-ratio: 1.72; object-fit: cover; transition: transform .2s ease; }
.image-link:hover img { transform: scale(1.025); }
.pack-image img { object-fit: contain; background: #f2f3ef; }
.eyebrow { color: var(--accent); text-transform: uppercase; letter-spacing: .06em; font-size: 12px; font-weight: 700; margin-bottom: 9px; line-height: 1.3; }
.topic-card .eyebrow { margin-bottom: 5px; }
.topic-card h2 { font-size: 21px; margin-bottom: 8px; letter-spacing: -.025em; }
.topic-card h2 a { color: var(--ink); text-decoration: none; }
.topic-card h2 a:hover { color: var(--accent); }
.topic-card > p:last-child { font-size: 14px; line-height: 1.6; margin-bottom: 0; }
.guide-section, .split-section, .safety-section { display: grid; grid-template-columns: minmax(230px, .8fr) minmax(0, 1.25fr); gap: 100px; padding-block: 70px; }
.section-intro { max-width: 405px; }
.section-intro > p:not(.eyebrow) { color: var(--muted); font-size: 17px; }
.reading-copy { max-width: 720px; }
.reading-copy .lead { font-size: 21px; line-height: 1.6; }
.reading-copy > :last-child { margin-bottom: 0; }
.context-note { border-left: 3px solid #84b66d; padding-left: 23px; margin-top: 30px; }
.context-note h3 { font-size: 21px; }
.context-note p { font-size: 16px; margin-bottom: 0; }
.tinted-section { background: #f5f8f1; }
.plain-list { padding-left: 22px; margin: 0 0 24px; }
.plain-list li { margin-bottom: 8px; padding-left: 4px; }
.plain-list li::marker { color: var(--accent); }
.comparison-scroll { overflow-x: auto; margin: 28px 0; }
table { border-collapse: collapse; width: 100%; font-size: 15px; text-align: left; }
caption { text-align: left; font-weight: 700; font-size: 18px; padding-bottom: 13px; }
th, td { border-bottom: 1px solid var(--line); padding: 13px 15px; vertical-align: top; }
thead { background: var(--soft); }
tbody th { width: 33%; font-weight: 600; }
.safety-section { padding-top: 15px; }
.urgent-note { padding: 23px 26px; background: #f8f5ed; border-radius: 12px; margin-top: 26px; }
.urgent-note h3 { font-size: 20px; }
.urgent-note p { font-size: 15px; margin: 0; }
.research-section { background: #f5f8f1; padding-block: 60px; }
.research-heading { display: flex; justify-content: space-between; align-items: end; gap: 30px; margin-bottom: 30px; }
.research-heading h2 { max-width: 650px; margin-bottom: 0; }
.text-link { font-weight: 700; font-size: 15px; }
.research-heading > a { white-space: nowrap; }
.research-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 38px; }
.research-grid article { border-top: 1px solid #b9cdb2; padding-top: 20px; }
.article-label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 12px; }
.research-grid h3 { font-size: 23px; }
.research-grid p { font-size: 15px; line-height: 1.7; }
.faq-section { display: grid; grid-template-columns: .85fr 1.15fr; gap: 75px; margin-block: 65px; padding: 40px; border-radius: 20px; background: #edf5e4; }
.faq-intro h2 { font-size: 42px; margin-bottom: 19px; }
.faq-intro > p:last-child { font-size: 16px; max-width: 350px; }
.faq-list details { border-bottom: 1px solid #c7d7bf; }
.faq-list details:last-child { border: 0; }
.faq-list summary { list-style: none; cursor: pointer; font-size: 17px; font-weight: 500; padding: 16px 32px 16px 0; position: relative; line-height: 1.4; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: '+'; position: absolute; right: 2px; top: 12px; color: var(--accent); font-size: 24px; font-weight: 400; }
.faq-list details[open] summary::after { content: '-'; }
.faq-list details p { font-size: 15px; line-height: 1.7; margin-bottom: 17px; color: #314437; }
.sources-section { padding-bottom: 55px; }
.sources-section h2 { font-size: 25px; }
.sources-section > p { max-width: 900px; font-size: 15px; color: var(--muted); }
.sources-section ol { padding-left: 20px; max-width: 1050px; font-size: 14px; }
.sources-section li { padding-left: 6px; margin-bottom: 11px; scroll-margin-top: 100px; }
.review-date { margin-top: 23px; font-size: 12px !important; }
.site-footer { border-top: 1px solid var(--line); padding-block: 27px; }
.footer-inner { display: flex; align-items: center; flex-wrap: wrap; gap: 20px 26px; }
.footer-inner .brand { font-size: 21px; }
.footer-inner .brand-mark { width: 20px; height: 20px; }
.footer-inner > p, .copyright { font-size: 12px; color: var(--muted); margin-bottom: 0; }
.footer-inner > a:not(.brand) { font-size: 13px; color: #28382d; }
.copyright { margin-left: 0; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
@media (max-width: 1100px) {
    .wrap, .header-inner { width: calc(100% - 48px); }
    .header-inner { gap: 20px; }
    .brand { font-size: 22px; }
    .site-nav { gap: 17px; }
    .site-nav a { font-size: 13px; }
    .opening { gap: 27px; }
    .opening p { font-size: 17px; }
    .guide-section, .split-section, .safety-section { gap: 55px; }
    .faq-section { gap: 45px; }
    .topic-card h2 { font-size: 19px; }
}
@media (max-width: 900px) {
    html { scroll-padding-top: 84px; }
    .header-inner { min-height: 70px; }
    .menu-toggle { display: flex; align-items: center; gap: 14px; background: none; border: 0; font-size: 15px; padding: 9px 0; margin-left: auto; color: var(--ink); }
    .menu-toggle span { font-size: 24px; color: var(--accent); }
    .header-link { width: 32px; }
    .menu-panel { display: none; position: absolute; top: 70px; left: 0; right: 0; background: #fff; padding: 16px 24px 24px; border-bottom: 1px solid var(--line); }
    .menu-panel.is-open { display: block; }
    .site-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; }
    .site-nav a { font-size: 16px; padding: 12px 0; }
    .opening { gap: 25px; }
    h1 { font-size: 33px; }
    .opening-image { aspect-ratio: 1.68; }
    .topic-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 27px 22px; }
    .guide-section, .split-section, .safety-section { grid-template-columns: 1fr; gap: 20px; padding-block: 46px; }
    .section-intro { max-width: 620px; }
    .section-intro > p:not(.eyebrow) { margin-bottom: 0; }
    .research-heading { display: block; }
    .research-heading > a { display: inline-block; margin-top: 15px; }
    .research-grid { gap: 24px; }
    .research-grid h3 { font-size: 21px; }
    .faq-section { grid-template-columns: 1fr; gap: 12px; padding: 28px; }
    .faq-intro h2 br { display: none; }
    .faq-intro > p:last-child { max-width: 100%; }
}
@media (max-width: 560px) {
    body { font-size: 16px; }
    .wrap, .header-inner { width: calc(100% - 36px); }
    .brand { font-size: 23px; }
    .brand-mark { width: 22px; height: 22px; }
    .opening { grid-template-columns: 1fr; padding-top: 23px; gap: 23px; }
    .opening-copy { padding: 0; }
    h1 { font-size: 35px; letter-spacing: -.045em; }
    .opening p { font-size: 17px; }
    .opening-image { aspect-ratio: 1.68; border-radius: 13px; }
    .button { min-height: 47px; }
    .topics { padding-bottom: 22px; }
    .topic-filters { gap: 7px; }
    .filter { font-size: 12px; padding: 7px 12px; min-height: 38px; }
    .topic-grid { gap: 24px 15px; }
    .topic-card h2 { font-size: 19px; }
    .topic-card > p:last-child { font-size: 13px; }
    .image-link img { aspect-ratio: 1.3; }
    .eyebrow { font-size: 10px; }
    .reading-copy .lead { font-size: 19px; }
    h2 { font-size: 31px; }
    h3 { font-size: 22px; }
    .research-section { padding-block: 42px; }
    .research-grid { grid-template-columns: 1fr; gap: 28px; }
    .research-grid article p { margin-bottom: 12px; }
    .faq-section { margin-block: 35px; padding: 24px 20px; }
    .faq-intro h2 { font-size: 33px; }
    .faq-list summary { font-size: 16px; }
    .sources-section { padding-bottom: 30px; }
    .footer-inner { align-items: start; gap: 17px 23px; }
    .footer-inner .brand, .footer-inner > p { width: 100%; }
    .copyright { width: 100%; margin-left: 0; }
}
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .image-link img { transition: none; }
}
@media (scripting: none) {
    .topic-filters, .menu-toggle, .search-panel { display: none; }
    .site-header { position: static; }
    .header-inner { flex-wrap: wrap; padding-block: 18px; }
    .menu-panel { display: block; position: static; padding: 0; border: 0; width: 100%; }
    .site-nav { display: flex; flex-wrap: wrap; }
}

.topic-filters a { display: inline-flex; align-items: center; text-decoration: none; }
.research-grid h3 a { color: inherit; text-decoration: none; }
.research-grid h3 a:hover { color: var(--accent); }
.article-heading { max-width: var(--page-width); padding-block: 28px 18px; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 9px; font-size: 13px; color: var(--muted); margin-bottom: 33px; }
.breadcrumbs a { color: var(--muted); }
.article-heading h1 { max-width: 850px; margin-bottom: 22px; }
.article-lead { max-width: 800px; font-size: 21px; line-height: 1.6; }
.page-contents { display: flex; flex-wrap: wrap; gap: 8px 22px; border-block: 1px solid var(--line); padding-block: 18px; margin-top: 30px; font-size: 14px; }
.article-body { max-width: var(--page-width); padding-bottom: 55px; }
.article-body > section { margin-top: 36px; }
.article-body h2 { font-size: 29px; margin-bottom: 20px; }
.article-body h3 { font-size: 22px; }
.article-body p { max-width: 1040px; line-height: 1.8; }
.article-body ul { max-width: 1040px; }
.article-body .faq-list { margin-top: 12px; }
.article-body .faq-list summary { font-size: 18px; }
.article-body .faq-list p { font-size: 16px; }
.related-topics { border-top: 1px solid var(--line); padding-top: 30px; }
.related-topics ul { list-style: none; padding: 0; margin: 0; display: flex; gap: 12px 28px; flex-wrap: wrap; font-size: 15px; }
.directory-list { display: grid; grid-template-columns: 1fr 1fr; gap: 25px 40px; }
.directory-list article { border-top: 1px solid var(--line); padding-top: 18px; }
.directory-list h3 { font-size: 21px; }
.directory-list h3 a { text-decoration: none; }
.directory-list p { font-size: 15px; color: var(--muted); margin-bottom: 0; }
@media (max-width: 560px) {
    .article-heading { padding-top: 23px; padding-bottom: 8px; }
    .breadcrumbs { margin-bottom: 25px; }
    .article-heading h1 { font-size: 34px; }
    .article-lead { font-size: 19px; }
    .article-body h2 { font-size: 26px; }
    .page-contents { gap: 10px 18px; }
    .directory-list { grid-template-columns: 1fr; gap: 22px; }
}

@media (max-width: 380px) {
    .header-inner { gap: 10px; }
    .header-inner .brand { font-size: 19px; gap: 7px; }
    .header-inner .brand-mark { width: 18px; height: 18px; }
    .menu-toggle { font-size: 13px; gap: 8px; }
    .header-link { width: 26px; }
}

.article-heading .breadcrumbs { margin-bottom: 24px; }
.article-banner { display: grid; grid-template-columns: 1fr 1.03fr; align-items: center; gap: 45px; }
.article-banner-copy { min-width: 0; padding-block: 16px; }
.article-banner-copy h1 { font-size: clamp(32px, 3.35vw, 49px); line-height: 1.12; }
.article-banner-copy .article-lead { font-size: 19px; line-height: 1.6; margin-bottom: 0; }
.article-banner-image { display: block; width: 100%; height: auto; border-radius: 17px; }
.article-heading .page-contents { margin-top: 30px; }
@media (max-width: 1100px) {
    .article-banner { gap: 27px; }
    .article-banner-copy h1 { font-size: 36px; }
    .article-banner-copy .article-lead { font-size: 17px; }
}
@media (max-width: 800px) {
    .article-banner { grid-template-columns: 1fr; gap: 22px; }
    .article-banner-copy { padding-block: 0; }
    .article-banner-copy h1 { max-width: 650px; }
    .article-banner-copy .article-lead { max-width: 680px; }
}
@media (max-width: 560px) {
    .article-heading { padding-top: 23px; }
    .article-heading .breadcrumbs { margin-bottom: 22px; }
    .article-banner-copy h1 { font-size: 34px; }
    .article-banner-image { border-radius: 13px; }
    .article-heading .page-contents { margin-top: 24px; }
}

@media (max-width: 560px) {
    .comparison-scroll table { min-width: 570px; }
    .comparison-scroll:focus-visible { outline: 2px solid #087638; outline-offset: 5px; }
}

.search-context {
    display: block;
    color: var(--muted);
    font-size: 12px;
    margin-top: 3px;
}
.search-status {
    color: var(--muted);
    font-size: 13px;
}
main details[id], main h1[id] {
    scroll-margin-top: 100px;
}
.menu-toggle[aria-expanded="true"] span {
    transform: rotate(45deg);
}