:root {
  --ink: #30363a;
  --muted: #66736d;
  --paper: #ffffff;
  --panel: #ffffff;
  --soft: #f3f8f5;
  --line: #dce8e2;
  --line-strong: #bddbcc;
  --lime: #c9f2df;
  --navy: #226447;
  --coral: #2f855a;
  --catalog-green: #49bd8a;
  --catalog-green-dark: #267a58;
  --good: #e5f6ed;
  --warn: #fff0e9;
  --shadow: 0 8px 24px rgba(33, 100, 71, .08);
  --shadow-hover: 0 10px 26px rgba(33, 100, 71, .12);
  --radius: 14px;
  --radius-small: 12px;
  --radius-large: 18px;
  --shell: 1180px;
  --measure: 760px;
  --page-gutter: 40px;
  --section-space: clamp(50px, 5vw, 60px);
  --cluster-space: 40px;
  --article-space: 44px;
  --section-title-size: clamp(1.75rem, 3.1vw, 2.55rem);
  --feature-title-size: clamp(1.65rem, 2.8vw, 2.25rem);
  --utility-title-size: clamp(1.22rem, 1.9vw, 1.5rem);
  --article-title-size: clamp(1.65rem, 3vw, 2.35rem);
  --page-title-size: clamp(1.85rem, 3.2vw, 2.75rem);
  --hero-title-size: clamp(2.15rem, 3.6vw, 3.25rem);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.65; text-rendering: optimizeLegibility; }
a { color: inherit; }
img { max-width: 100%; height: auto; }
.shell { width: min(calc(100% - var(--page-gutter)), var(--shell)); margin-inline: auto; }
.skip-link { position: fixed; z-index: 30; left: 12px; top: -90px; padding: 10px 14px; border-radius: 8px; background: var(--ink); color: #fff; }
.skip-link:focus { top: 12px; }
.sr-only { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; overflow: hidden !important; clip: rect(0, 0, 0, 0) !important; white-space: nowrap !important; border: 0 !important; }

.site-header { position: sticky; z-index: 20; top: 0; border-bottom: 1px solid rgba(19, 84, 57, .28); background: #2f855a; box-shadow: 0 2px 12px rgba(24, 63, 48, .1); }
.header-row { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.wordmark { display: grid; grid-template-columns: auto auto; align-items: center; column-gap: 10px; color: #fff; text-decoration: none; }
.site-mark { grid-row: 1 / 3; width: 42px; height: 42px; display: block; border: 2px solid rgba(255, 255, 255, .88); border-radius: 11px; background: #49bd8a; }
.wordmark b { align-self: end; font-size: .9rem; line-height: 1.2; }
.wordmark small { align-self: start; color: #fff; font-size: .66rem; line-height: 1.25; }
.desktop-nav { display: flex; align-items: center; gap: clamp(12px, 1.6vw, 22px); }
.desktop-nav a { min-height: 44px; display: inline-flex; align-items: center; color: #fff; text-decoration: none; font-size: clamp(.72rem, 1vw, .84rem); font-weight: 750; }
.desktop-nav a:hover { color: #dcf6ea; }
.desktop-nav a[aria-current="page"] { box-shadow: inset 0 -3px #fff; }
.mobile-menu { display: none; }
.language-picker { position: relative; flex: 0 0 auto; color: #fff; }
.language-picker summary { min-height: 42px; display: inline-flex; align-items: center; padding: 7px 12px; border: 1px solid rgba(255, 255, 255, .76); border-radius: 999px; list-style: none; cursor: pointer; font-size: .72rem; font-weight: 800; white-space: nowrap; }
.language-picker summary::-webkit-details-marker { display: none; }
.language-picker summary::after { content: "▾"; margin-left: 7px; font-size: .66rem; }
.language-picker[open] summary::after { content: "▴"; }
.language-picker nav { position: absolute; z-index: 40; top: calc(100% + 10px); right: 0; width: min(620px, calc(100vw - 32px)); max-height: min(520px, calc(100vh - 100px)); display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 4px; overflow: auto; padding: 12px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: 0 18px 48px rgba(17, 54, 38, .24); }
.language-picker nav a { min-height: 40px; display: flex; align-items: center; padding: 7px 10px; border-radius: 9px; color: var(--ink); font-size: .78rem; font-weight: 700; text-decoration: none; }
.language-picker nav a:hover { background: var(--soft); }
.language-picker nav a[aria-current="page"] { color: var(--catalog-green-dark); background: #e4f5ec; }

h1, h2, h3 { font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.14; letter-spacing: -.024em; text-wrap: balance; }
h1 { margin: 0; font-size: clamp(2.5rem, 4.4vw, 3.75rem); font-weight: 760; }
h2 { margin: 0; font-size: var(--section-title-size); font-weight: 730; }
h3 { font-size: 1.38rem; font-weight: 720; }
p { text-wrap: pretty; }
.eyebrow, .card-kicker { margin: 0 0 10px; color: var(--catalog-green-dark); font-size: .72rem; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }
.button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; padding: 11px 18px; border: 1px solid var(--ink); border-radius: 999px; font-size: .88rem; font-weight: 850; text-decoration: none; }
.button-primary { border-color: var(--catalog-green-dark); background: var(--catalog-green-dark); color: #fff; }
.button-primary span { margin-left: 8px; color: #fff; }
.button-secondary { border-color: var(--line-strong); background: #fff; color: var(--catalog-green-dark); }
.button-light { border-color: var(--catalog-green-dark); background: var(--catalog-green-dark); color: #fff; }
.button-outline-light { border-color: var(--line-strong); background: #fff; color: var(--catalog-green-dark); }
.text-link { min-height: 44px; display: inline-flex; align-items: center; padding: 6px 4px; font-size: .86rem; font-weight: 850; text-decoration-thickness: 2px; text-underline-offset: 4px; }
.inline-cta { display: inline-flex; margin-top: 20px; padding-bottom: 3px; color: var(--lime); font-weight: 850; text-decoration-thickness: 2px; text-underline-offset: 5px; }
.inline-cta.ink { color: var(--ink); }
.external-note { color: var(--muted); font-size: .8rem; }
:focus-visible { outline: 3px solid var(--catalog-green-dark); outline-offset: 3px; }
.site-header :focus-visible { outline-color: #fff; }

.hero { padding: 56px 0 52px; border-bottom: 1px solid var(--line); background: linear-gradient(180deg, #f1f8f4 0%, #f8fbf9 100%); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.18fr) minmax(330px, .82fr); column-gap: clamp(34px, 5vw, 60px); row-gap: 10px; align-items: center; }
.hero-intro { grid-column: 1; align-self: end; }
.hero-support { grid-column: 1; align-self: start; }
.hero h1 { max-width: 780px; font-size: var(--hero-title-size); }
.lede { max-width: 720px; margin: 22px 0 18px; color: #35413d; font-size: clamp(1.08rem, 2vw, 1.28rem); }
.trust { max-width: 750px; padding-left: 16px; border-left: 3px solid var(--catalog-green); color: var(--muted); font-size: .92rem; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 22px; }
.research-card { grid-column: 2; grid-row: 1 / 3; padding: clamp(24px, 3vw, 32px); border: 1px solid var(--line-strong); border-radius: var(--radius-large); background: var(--soft); box-shadow: var(--shadow); }
.research-card h2 { font-size: var(--feature-title-size); }
input, button { font: inherit; }
button { min-height: 50px; padding: 10px 17px; border: 0; border-radius: 12px; background: var(--catalog-green-dark); color: #fff; font-weight: 850; cursor: pointer; }
.research-card > p:not(.card-kicker) { color: var(--muted); font-size: .86rem; }
.catalog-search-form { margin-top: 18px; }
.catalog-search-label { display: block; margin-bottom: 9px; color: #38443f; font-size: .78rem; font-weight: 850; letter-spacing: .01em; }
.catalog-search-bar { min-height: 58px; display: flex; align-items: stretch; overflow: hidden; border: 2px solid var(--catalog-green-dark); border-radius: 999px; background: #fff; transition: border-color .18s ease, box-shadow .18s ease; }
.catalog-search-bar:focus-within { border-color: var(--catalog-green-dark); box-shadow: 0 0 0 4px rgba(73, 189, 138, .18); }
.catalog-search-mark { width: 17px; height: 17px; flex: 0 0 17px; align-self: center; margin-left: 20px; border: 2px solid #77827c; border-radius: 50%; position: relative; }
.catalog-search-mark::after { content: ""; position: absolute; width: 7px; height: 2px; right: -6px; bottom: -3px; border-radius: 999px; background: #77827c; transform: rotate(45deg); transform-origin: left center; }
.catalog-search-bar input { min-width: 0; min-height: 54px; flex: 1 1 auto; width: 100%; padding: 10px 16px; border: 0; border-radius: 0; outline: 0; color: var(--ink); background: transparent; box-shadow: none; }
.catalog-search-bar input::placeholder { color: var(--muted); opacity: 1; }
.catalog-search-bar button { min-width: 118px; min-height: 54px; align-self: stretch; padding-inline: 22px; border: 0; border-radius: 0; background: var(--catalog-green-dark); color: #fff; transition: background-color .18s ease; }
.catalog-search-bar button:hover { background: #1c6748; }
.catalog-search-note { margin: 10px 4px 0; color: var(--muted); font-size: .78rem; line-height: 1.55; }
.catalog-search-note strong { color: var(--ink); }
.mini-flow { list-style: none; margin: 18px 0 0; padding: 0; border-top: 1px solid var(--line); }
.mini-flow li { display: flex; gap: 12px; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: .88rem; font-weight: 750; }
.mini-flow span { color: var(--catalog-green-dark); font-size: .72rem; letter-spacing: .1em; }

.section { padding-block: var(--section-space); }
.quick-strip { display: grid; grid-template-columns: .88fr 1.12fr; gap: clamp(30px, 5vw, 64px); align-items: start; }
.two-col-copy { columns: 2 260px; column-gap: 34px; color: var(--muted); }
.two-col-copy p { margin-top: 0; break-inside: avoid; }
.split-heading { display: grid; grid-template-columns: minmax(0, 1.18fr) minmax(280px, .82fr); gap: clamp(24px, 5vw, 68px); align-items: end; margin-bottom: 26px; }
.split-heading > p { margin: 0 0 5px; color: var(--muted); }
.dark-section { color: var(--ink); border-block: 1px solid var(--line); background: #fff; }
.dark-section .eyebrow { color: var(--catalog-green-dark); }
.dark-section .split-heading > p { color: var(--muted); }
.dark-section .inline-cta { color: var(--catalog-green-dark); }
.definition-grid { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; }
.definition-grid article { min-height: 230px; padding: 22px; border-right: 1px solid var(--line); background: #fff; }
.definition-grid article:last-child { border-right: 0; }
.definition-grid span { color: var(--catalog-green-dark); font-size: .76rem; font-weight: 850; letter-spacing: .1em; }
.definition-grid h3 { margin: 46px 0 9px; }
.definition-grid p { color: var(--muted); font-size: .9rem; }

.workflow { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.workflow li { min-height: 220px; display: flex; flex-direction: column; justify-content: space-between; padding: 21px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); }
.workflow > li > span { color: var(--coral); font-size: .8rem; font-weight: 900; letter-spacing: .1em; }
.workflow h3 { margin: 34px 0 8px; }
.workflow p { margin: 0; color: var(--muted); font-size: .9rem; }
.search-panel { display: grid; grid-template-columns: 1.05fr .95fr; gap: 14px 38px; align-items: end; padding: clamp(24px, 4vw, 38px); border: 1px solid var(--line-strong); border-radius: var(--radius-large); color: var(--ink); background: var(--soft); box-shadow: var(--shadow); }
.search-panel h2 { font-size: var(--feature-title-size); }
.search-panel p { color: var(--muted); }
.search-panel form { align-self: center; }
.search-panel .catalog-search-form { margin-top: 0; }
.search-panel .catalog-search-label { color: var(--ink); }
.search-panel .catalog-search-note { color: var(--muted); }
.search-panel .catalog-search-note strong { color: var(--ink); }
.search-panel .catalog-search-bar button { background: var(--catalog-green-dark); color: #fff; }
.search-panel .catalog-search-bar button:hover { background: #1c6748; }
.search-panel .external-note { grid-column: 2; margin: 0; }

.catalog-directory { background: #fff; }
.directory-heading { min-height: 44px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.directory-heading h2 { padding-left: 12px; border-left: 4px solid var(--catalog-green); color: #30363a; font-size: var(--utility-title-size); font-weight: 600; letter-spacing: -.02em; }
.directory-heading > a { min-height: 44px; display: inline-flex; align-items: center; padding-inline: 4px; color: #2f855a; font-size: .9rem; font-weight: 600; text-decoration: none; }
.directory-heading > a:hover { text-decoration: underline; text-underline-offset: 4px; }
.directory-grid { list-style: none; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; margin: 18px 0 0; padding: 0; }
.article-body .directory-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.directory-grid li { min-width: 0; }
.directory-card { min-height: 196px; height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 16px 12px 12px; border: 1px solid var(--line-strong); border-radius: var(--radius-small); background: #fff; color: var(--ink); text-align: center; text-decoration: none; box-shadow: 0 1px 2px rgba(15, 61, 42, .04); transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease; }
.directory-card:hover { transform: translateY(-2px); border-color: var(--catalog-green); color: var(--catalog-green-dark); box-shadow: var(--shadow-hover); }
.directory-icon { width: 96px; height: 96px; display: grid; place-items: center; overflow: hidden; border-radius: 10px; background: #fff; }
.directory-icon img { width: 80px; height: 80px; display: block; object-fit: contain; }
.directory-card strong { margin-top: 10px; font-size: .95rem; line-height: 1.3; }
.directory-popular { min-height: 19px; margin-top: 2px; color: transparent; font-size: .72rem; font-weight: 500; letter-spacing: .08em; line-height: 1.5; }
.directory-popular.is-visible { color: #386c53; }
.directory-note { margin: 12px 0 0; color: var(--muted); font-size: .78rem; text-align: right; }
.catalog-directory-page { margin-bottom: var(--cluster-space); }
.brand-directory { margin-top: var(--cluster-space); }
.brand-grid { list-style: none; display: grid; grid-template-columns: repeat(8, minmax(0, 1fr)); gap: 14px; margin: 18px 0 0; padding: 0; }
.brand-grid li { min-width: 0; padding-bottom: 8px; position: relative; isolation: isolate; }
.brand-grid li::before, .brand-grid li::after { content: ""; position: absolute; z-index: -1; inset: 5px 6px 4px; border: 1px solid #dedfdf; background: #fff; }
.brand-grid li::before { transform: translate(3px, 3px); }
.brand-grid li::after { transform: translate(6px, 6px); }
.brand-card { display: block; position: relative; z-index: 1; border: 1px solid #dedfdf; background: #fff; color: #404341; text-decoration: none; box-shadow: 0 3px 10px rgba(22, 31, 26, .09); transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease; }
.brand-card:hover { z-index: 2; transform: translateY(-2px); border-color: var(--catalog-green); box-shadow: var(--shadow-hover); }
.brand-logo { aspect-ratio: 1; display: grid; place-items: center; overflow: hidden; background: #fff; }
.brand-logo img { width: 100%; height: 100%; display: block; padding: 20px; object-fit: contain; filter: brightness(0); }
.brand-card strong { min-height: 37px; display: flex; align-items: center; overflow: hidden; padding: 6px 10px; border-top: 1px solid #dedfdf; font-size: .82rem; font-weight: 500; line-height: 1.35; text-overflow: ellipsis; white-space: nowrap; }
.product-showcase { margin-top: var(--cluster-space); }
.product-snapshot-label { margin: 0 0 14px; color: var(--muted); font-size: .75rem; letter-spacing: .03em; text-align: right; }
.product-group + .product-group { margin-top: var(--cluster-space); }
.product-group-heading { min-height: 44px; display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 18px; border-bottom: 1px solid #e1e5e3; }
.product-group-heading h2 { padding-left: 12px; border-left: 4px solid var(--catalog-green); color: #30363a; font-size: var(--utility-title-size); font-weight: 600; letter-spacing: -.02em; }
.product-group-heading a { min-height: 44px; display: inline-flex; align-items: center; padding-inline: 4px; color: #2f855a; font-size: .9rem; font-weight: 600; text-decoration: none; }
.product-group-heading a:hover { text-decoration: underline; text-underline-offset: 4px; }
.product-grid { display: grid; grid-template-columns: repeat(8, minmax(0, 1fr)); gap: 14px; }
.product-card-shell { min-width: 0; padding-bottom: 8px; position: relative; isolation: isolate; }
.product-card-shell::before, .product-card-shell::after { content: ""; position: absolute; z-index: -1; inset: 5px 6px 4px; border: 1px solid #dedfdf; background: #fff; }
.product-card-shell::before { transform: translate(3px, 3px); }
.product-card-shell::after { transform: translate(6px, 6px); }
.product-card { display: block; position: relative; z-index: 1; border: 1px solid #dedfdf; background: #fff; color: #404341; text-decoration: none; box-shadow: 0 3px 10px rgba(22, 31, 26, .09); transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease; }
.product-card:hover { z-index: 2; transform: translateY(-2px); border-color: var(--catalog-green); box-shadow: var(--shadow-hover); }
.product-image { aspect-ratio: 1; display: block; overflow: hidden; position: relative; background: #f3f4f4; }
.product-image img { width: 100%; height: 100%; display: block; object-fit: cover; }
.product-image-shade { position: absolute; inset: auto 0 0; height: 30%; background: linear-gradient(to top, rgba(0, 0, 0, .28), transparent); }
.product-image-count { position: absolute; right: 7px; bottom: 5px; color: #fff; font-size: .82rem; font-variant-numeric: tabular-nums; line-height: 1.4; }
.product-card strong { min-height: 37px; display: block; overflow: hidden; padding: 7px 10px; border-top: 1px solid #dedfdf; font-size: .82rem; font-weight: 500; line-height: 1.35; text-overflow: ellipsis; white-space: nowrap; }
.product-directory-note { margin-top: 16px; }
.snapshot-evidence { margin-top: 22px; padding: 20px; border: 1px solid var(--line-strong); border-radius: var(--radius); background: #fff; }
.snapshot-evidence h2 { margin: 0 0 14px; font-size: clamp(1.08rem, 1.6vw, 1.28rem); }
.snapshot-evidence dl { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; margin: 0; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-small); background: var(--line); }
.snapshot-evidence dl > div { padding: 15px 16px; background: #fff; }
.snapshot-evidence dt { margin-bottom: 5px; font-size: .76rem; font-weight: 900; letter-spacing: .04em; text-transform: uppercase; }
.snapshot-evidence dd { margin: 0; color: var(--muted); font-size: .84rem; line-height: 1.5; }
.soft-section { border-block: 1px solid var(--line); background: #fff; }
.method-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.method-grid article { padding: 21px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.method-grid h3 { margin: 0 0 10px; font-size: 1.35rem; }
.method-grid p { margin: 0; color: var(--muted); font-size: .9rem; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
table { width: 100%; border-collapse: collapse; min-width: 680px; }
th, td { padding: 16px 18px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { background: #fff; font-size: .76rem; letter-spacing: .04em; text-transform: uppercase; }
td { color: #48544f; font-size: .9rem; }
tbody tr:last-child td { border-bottom: 0; }
.note { margin: 18px 0 0; padding: 16px 18px; border: 1px solid var(--line); border-left: 4px solid var(--catalog-green); border-radius: 0 var(--radius-small) var(--radius-small) 0; background: #fff; }
.check-grid { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 0; padding: 0; }
.check-grid li { min-height: 86px; display: flex; align-items: center; padding: 18px 18px 18px 52px; border: 1px solid var(--line); border-radius: 14px; position: relative; background: #fff; }
.check-grid li::before { content: "✓"; position: absolute; left: 18px; color: var(--catalog-green-dark); font-weight: 900; }
.warning-section { padding-top: 50px; }
.warning-card { width: 100%; margin-inline: auto; padding: clamp(26px, 4vw, 44px); border: 1px solid #e8d7ba; border-radius: var(--radius-large); background: #fff; }
.warning-card p:not(.eyebrow) { max-width: 800px; color: #574f43; }
.warning-card a { font-weight: 850; text-underline-offset: 4px; }
.guide-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.guide-grid article { min-height: 228px; display: flex; flex-direction: column; padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.guide-grid h3 { margin: 16px 0 9px; }
.guide-grid p:not(.card-kicker) { color: var(--muted); }
.guide-grid a { margin-top: auto; font-weight: 850; }
.closing { padding: 50px 0; color: var(--ink); border-top: 1px solid var(--line); background: #fff; }
.closing .eyebrow { color: var(--catalog-green-dark); }
.closing-inner { display: grid; grid-template-columns: 1.15fr .85fr; gap: 44px; align-items: center; }
.closing-inner > div:last-child { display: flex; flex-wrap: wrap; gap: 12px; justify-content: flex-end; }
.closing-inner > div:last-child p { width: 100%; margin: 0; color: var(--muted); font-size: .8rem; text-align: right; }

.guide-hero { padding: 46px 0 42px; border-bottom: 1px solid var(--line); background: #fff; }
.guide-hero h1 { max-width: 900px; font-size: var(--page-title-size); }
.guide-intro { max-width: 790px; margin: 16px 0 0; color: #46524d; font-size: 1.08rem; }
.breadcrumbs { display: flex; gap: 9px; align-items: center; margin-bottom: 22px; color: var(--muted); font-size: .78rem; }
.breadcrumbs a { font-weight: 750; }
.review-line { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.review-line span, .review-line a { min-height: 30px; display: inline-flex; align-items: center; padding: 5px 10px; border: 1px solid var(--line-strong); border-radius: 999px; color: #53605a; background: rgba(255, 255, 255, .72); font-size: .7rem; font-weight: 800; line-height: 1.25; }
.review-line a { color: var(--catalog-green-dark); text-underline-offset: 3px; }
.article-layout { display: grid; grid-template-columns: minmax(0, var(--measure)) minmax(230px, 1fr); gap: clamp(34px, 6vw, 68px); align-items: start; padding-block: 44px 62px; }
.article-body { min-width: 0; }
.article-body > .content-section:last-child { margin-bottom: 0; }
.article-aside { position: sticky; top: 94px; padding: 20px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.article-aside p:not(.eyebrow) { color: var(--muted); font-size: .88rem; }
.article-aside a { font-size: .84rem; font-weight: 850; }
.quick-answer { margin: 0 0 40px; padding: 24px 26px; border: 1px solid var(--line-strong); border-radius: var(--radius); background: #fff; }
.quick-answer .eyebrow { color: var(--catalog-green-dark); }
.quick-answer > p:last-child { margin: 0; font-size: 1.08rem; font-weight: 620; line-height: 1.58; }
.content-section { margin: 0 0 var(--article-space); scroll-margin-top: 94px; }
.content-section h2 { margin-bottom: 14px; font-size: var(--article-title-size); }
.content-section h3 { font-size: 1.35rem; }
.content-section > p, .content-section li, .content-section dd { color: #46524d; }
.content-section > p { font-size: 1rem; }
.content-section.wide-content { width: 100%; max-width: 100%; }
.callout { margin-block: 18px; padding: 21px 24px; border: 1px solid var(--line); border-left: 4px solid var(--catalog-green); border-radius: 0 var(--radius) var(--radius) 0; background: #fff; color: var(--ink); }
.callout p { margin: 0 0 4px; color: var(--catalog-green-dark); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; font-size: 1.55rem; }
.callout span { color: var(--muted); font-size: .9rem; }
.number-list { padding: 0; list-style: none; counter-reset: steps; }
.number-list li { min-height: 76px; margin-bottom: 10px; padding: 15px 18px 15px 60px; border: 1px solid var(--line); border-radius: var(--radius); position: relative; background: var(--panel); }
.number-list li::before { counter-increment: steps; content: counter(steps, decimal-leading-zero); position: absolute; left: 18px; top: 16px; color: var(--coral); font-size: .74rem; font-weight: 900; letter-spacing: .08em; }
.practical-tool { padding: 24px; border: 1px solid var(--line-strong); border-radius: var(--radius-large); background: #fff; }
.practical-tool > .eyebrow { margin-bottom: 10px; color: var(--catalog-green-dark); }
.practical-tool > h2 { max-width: 640px; }
.action-board { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 18px; }
.action-board article { min-height: 184px; padding: 19px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.action-board h3 { margin: 20px 0 8px; }
.action-board p:last-child { margin-bottom: 0; color: var(--muted); font-size: .9rem; }
.status-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 18px; }
.status-grid article { min-height: 168px; padding: 19px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.status-grid span, .decision-gates span { display: inline-flex; padding: 5px 9px; border-radius: 999px; color: #275d45; background: #e3f4eb; font-size: .69rem; font-weight: 900; letter-spacing: .07em; text-transform: uppercase; }
.status-grid h3, .decision-gates h3 { margin: 18px 0 8px; }
.status-grid p, .decision-gates p { margin: 0; color: var(--muted); font-size: .9rem; }
.decision-gates { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 18px 0; }
.decision-gates article { min-height: 184px; padding: 19px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.decision-gates article:first-child span { color: #7a2d20; background: #f4d9d1; }
.decision-gates article:nth-child(2) span { color: #705410; background: #f4e9b8; }
.message-template { margin: 18px 0; padding: 21px 23px; border: 1px solid var(--line); border-left: 5px solid var(--catalog-green); border-radius: 0 var(--radius) var(--radius) 0; background: #fff; }
.message-template p { margin: 0; color: #46524d; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .88rem; line-height: 1.72; }
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.compare article { min-height: 190px; padding: 20px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.compare h3 { margin: 18px 0 9px; }
.compare p:last-child { color: var(--muted); }
.compare .positive { border-color: #b9dfca; background: #fff; }
.compare .negative { border-color: #efd1c4; background: #fff; }
.definition-list { display: grid; gap: 10px; }
.definition-list > div { display: grid; grid-template-columns: 150px 1fr; gap: 20px; padding: 17px 18px; border-bottom: 1px solid var(--line); }
.definition-list b { font-size: 1.02rem; font-weight: 750; }
.definition-list p { margin: 0; color: var(--muted); }
.term-list { display: grid; gap: 1px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--line); }
.term-list > div { display: grid; grid-template-columns: 150px 1fr; gap: 20px; padding: 18px; background: #fff; }
.term-list dt { font-weight: 750; }
.term-list dd { margin: 0; }
.tick-list { list-style: none; margin: 16px 0; padding: 0; display: grid; gap: 8px; }
.tick-list li { min-height: 48px; display: flex; align-items: center; padding: 10px 14px 10px 46px; border: 1px solid var(--line); border-radius: 12px; position: relative; background: #fff; }
.tick-list li::before { content: "✓"; position: absolute; left: 17px; color: #46701f; font-weight: 900; }
.tick-list.cross li::before { content: "—"; color: var(--coral); }
.query-examples { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0; }
.query-examples span { padding: 8px 12px; border: 1px solid #bfc6bd; border-radius: 999px; background: #fff; font-size: .82rem; }
.score-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.score-list li { min-height: 62px; display: grid; grid-template-columns: 42px 1fr; align-items: center; border: 1px solid var(--line); border-radius: 14px; background: #fff; overflow: hidden; }
.score-list span { height: 100%; display: grid; place-items: center; color: var(--ink); background: var(--lime); font-weight: 900; }
.score-list p { margin: 0; padding: 10px 14px; }
.score-bands { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.score-bands article { padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.score-bands b { color: var(--coral); font-size: 1.65rem; }
.score-bands h3 { margin: 14px 0 7px; }
.score-bands p { margin: 0; color: var(--muted); font-size: .9rem; }
blockquote { margin: 18px 0; padding: 22px 24px; border: 1px solid var(--line); border-left: 5px solid var(--catalog-green); border-radius: 0 var(--radius) var(--radius) 0; background: #fff; font-size: 1.18rem; font-weight: 650; line-height: 1.55; }
.continue-section { padding-top: 8px; border-top: 1px solid var(--line); }
.link-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.link-grid article { min-height: 168px; display: flex; flex-direction: column; padding: 18px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.link-grid h3 { margin: 0 0 8px; }
.link-grid p { margin: 0 0 16px; color: var(--muted); font-size: .87rem; }
.link-grid a { margin-top: auto; font-size: .84rem; font-weight: 850; }
.faq-list { margin-top: 22px; border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { min-height: 58px; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 12px 4px; cursor: pointer; font-size: 1.04rem; font-weight: 720; }
.faq-list summary::after { content: "+"; color: var(--coral); font-family: Inter, sans-serif; font-size: 1.3rem; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details > div { padding: 0 30px 18px 4px; }
.faq-list details p { color: var(--muted); }
.faq-list details a { font-size: .84rem; font-weight: 850; }
.reader-questions { padding-top: 8px; border-top: 1px solid var(--line); }
.reader-questions > h2 { max-width: 650px; }
.compact-faq { margin-top: 16px; }
.compact-faq summary { min-height: 58px; font-size: 1.03rem; }
.compact-faq details > div { padding-bottom: 20px; }
.compact-faq details p { max-width: 680px; margin: 0; }
.source-notes { padding-top: 8px; border-top: 1px solid var(--line); }
.source-notes > h2 { max-width: 680px; }
.source-notes ul { list-style: none; display: grid; gap: 10px; margin: 18px 0 12px; padding: 0; }
.source-notes li { padding: 17px 18px; border: 1px solid var(--line); border-radius: var(--radius-small); background: #fff; }
.source-notes li a { font-weight: 850; text-underline-offset: 4px; }
.source-notes li p { margin: 6px 0 0; color: var(--muted); font-size: .9rem; }
.source-review-note { color: var(--muted); font-size: .8rem !important; }

.site-footer { padding: 40px 0 18px; color: #fff; background: #194934; }
.footer-grid { display: grid; grid-template-columns: .78fr 1.22fr; gap: 50px; align-items: start; }
.wordmark.inverse { color: #fff; }
.footer-brand p { max-width: 480px; color: #aebbb5; font-size: .84rem; }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.footer-link-group h2 { margin: 0 0 9px; color: #fff; font-size: .85rem; letter-spacing: .02em; }
.footer-link-group nav { display: grid; }
.footer-link-group a { min-height: 36px; display: inline-flex; align-items: center; color: #cad3cf; font-size: .78rem; line-height: 1.25; text-decoration: none; }
.footer-link-group a:hover { color: var(--lime); }
.footer-base { display: flex; justify-content: space-between; gap: 20px; margin-top: 28px; padding-top: 14px; border-top: 1px solid rgba(255, 255, 255, .14); color: #cad3cf; font-size: .72rem; }

.whatsapp-float {
  position: fixed;
  right: max(18px, env(safe-area-inset-right));
  bottom: max(18px, env(safe-area-inset-bottom));
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  color: #fff;
  background: #25d366;
  border: 2px solid var(--catalog-green-dark);
  border-radius: 50%;
  box-shadow: 0 12px 30px rgba(9, 46, 28, .3);
  text-decoration: none;
  transition: transform .18s ease, box-shadow .18s ease;
}
.whatsapp-float:hover,
.whatsapp-float:focus-visible {
  color: #fff;
  transform: translateY(-2px) scale(1.04);
  box-shadow: 0 16px 36px rgba(9, 46, 28, .38);
}
.whatsapp-float img { display: block; width: 32px; height: 32px; }
.whatsapp-label {
  position: absolute;
  top: 50%;
  right: 68px;
  width: max-content;
  max-width: 210px;
  padding: .55rem .7rem;
  color: #fff;
  background: #17231d;
  border-radius: 9px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .2);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.2;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-50%);
  transition: opacity .18s ease, visibility .18s ease;
}
.whatsapp-float:hover .whatsapp-label,
.whatsapp-float:focus-visible .whatsapp-label { opacity: 1; visibility: visible; }

@media (max-width: 1240px) {
  .desktop-nav { display: none; }
  .mobile-menu { display: block; position: relative; }
  .mobile-menu summary { min-width: 48px; min-height: 44px; display: grid; place-items: center; list-style: none; padding: 0 14px; border: 1px solid rgba(255, 255, 255, .8); border-radius: 999px; color: #fff; cursor: pointer; font-size: .82rem; font-weight: 850; }
  .mobile-menu summary::-webkit-details-marker { display: none; }
  .mobile-menu nav { position: absolute; right: 0; top: 52px; width: min(300px, calc(100vw - 32px)); display: grid; padding: 12px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow); }
  .mobile-menu nav a { min-height: 44px; display: flex; align-items: center; padding: 4px 10px; border-radius: 9px; color: var(--ink); text-decoration: none; font-size: .84rem; font-weight: 750; }
  .mobile-menu nav a:hover { background: var(--soft); }
  .mobile-menu nav a[aria-current="page"] { color: var(--catalog-green-dark); background: #e8f5ee; }
}

@media (max-width: 1100px) {
  .article-layout { grid-template-columns: 1fr; row-gap: 24px; }
  .article-aside { width: 100%; position: static; }
}

@media (max-width: 1020px) {
  .definition-grid, .workflow, .method-grid, .action-board, .decision-gates { grid-template-columns: 1fr 1fr; }
  .definition-grid article { border-bottom: 1px solid var(--line); }
  .definition-grid article:nth-child(2) { border-right: 0; }
  .definition-grid article:nth-child(3), .definition-grid article:nth-child(4) { border-bottom: 0; }
  .directory-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .brand-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .product-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (max-width: 780px) {
  :root { --page-gutter: 28px; --section-space: 42px; --cluster-space: 32px; --article-space: 38px; }
  .hero { padding: 40px 0; }
  .hero-grid, .quick-strip, .split-heading, .search-panel, .closing-inner, .footer-grid { grid-template-columns: 1fr; }
  .hero-grid { row-gap: 22px; }
  .hero-intro, .research-card, .hero-support { grid-column: 1; }
  .hero-intro { grid-row: 1; }
  .research-card { grid-row: 2; }
  .hero-support { grid-row: 3; }
  .search-panel .external-note { grid-column: 1; }
  .directory-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .brand-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .product-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .guide-grid { grid-template-columns: 1fr; }
  .check-grid { grid-template-columns: 1fr 1fr; }
  .closing-inner > div:last-child { justify-content: flex-start; }
  .closing-inner > div:last-child p { text-align: left; }
  .footer-links { grid-template-columns: 1fr 1fr; }
  .footer-base { display: block; }
  .guide-hero { padding: 34px 0; }
  .article-layout { padding-block: 32px 48px; }
  .quick-answer { margin-bottom: 32px; padding: 21px; }
  .search-panel { padding: 22px; }
  .snapshot-evidence dl { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  :root { --section-space: 36px; --cluster-space: 28px; --article-space: 34px; }
  body { font-size: .97rem; }
  h1 { font-size: 2.12rem; }
  .hero h1 { font-size: 1.95rem; }
  .guide-hero h1 { font-size: 1.85rem; }
  .hero { padding: 30px 0 34px; }
  .hero .lede { margin: 16px 0 14px; font-size: 1rem; }
  .hero .trust { font-size: .85rem; line-height: 1.5; }
  .hero .hero-actions { gap: 10px; margin-top: 18px; }
  .hero-support .trust { margin-top: 0; }
  .research-card { padding: 22px 18px; }
  .research-card .mini-flow { display: none; }
  .header-row { min-height: 68px; gap: 10px; }
  .wordmark small { display: none; }
  .site-mark { grid-row: auto; width: 36px; height: 36px; border-radius: 10px; }
  .wordmark b { font-size: .78rem; }
  .language-picker summary { min-height: 38px; padding-inline: 10px; font-size: .68rem; }
  .language-picker nav { position: fixed; top: 74px; right: 14px; left: 14px; width: auto; grid-template-columns: repeat(2, minmax(0, 1fr)); max-height: calc(100vh - 90px); }
  .hero-actions .button { width: 100%; }
  .hero-actions .text-link { margin-inline: auto; }
  .catalog-search-mark { margin-left: 16px; }
  .catalog-search-bar input { padding-inline: 12px 8px; }
  .catalog-search-bar button { min-width: 94px; padding-inline: 14px; }
  .directory-heading { align-items: flex-start; }
  .directory-heading > a { min-height: 40px; font-size: .78rem; text-align: right; }
  .directory-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .article-body .directory-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .brand-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .commerce-directories .directory-grid,
  .commerce-directories .brand-grid,
  .commerce-directories .product-grid,
  .guide-library .guide-grid {
    grid-template-columns: none;
    grid-auto-flow: column;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scroll-snap-type: inline proximity;
    scroll-padding-inline: 1px;
    scrollbar-width: thin;
    -webkit-overflow-scrolling: touch;
  }
  .commerce-directories .directory-grid { grid-auto-columns: minmax(150px, 44vw); padding: 2px 8px 12px 1px; }
  .commerce-directories .brand-grid,
  .commerce-directories .product-grid { grid-auto-columns: minmax(166px, 47vw); padding: 2px 8px 12px 1px; }
  .guide-library .guide-grid { grid-auto-columns: minmax(270px, 78vw); padding: 2px 8px 12px 1px; }
  .commerce-directories .directory-grid > *,
  .commerce-directories .brand-grid > *,
  .commerce-directories .product-grid > *,
  .guide-library .guide-grid > * { scroll-snap-align: start; }
  .directory-card { min-height: 174px; padding: 12px 8px 9px; }
  .directory-icon { width: 82px; height: 82px; }
  .directory-icon img { width: 70px; height: 70px; }
  .directory-note { text-align: left; }
  .definition-grid, .workflow, .method-grid, .check-grid, .compare, .score-bands, .link-grid, .action-board, .status-grid, .decision-gates { grid-template-columns: 1fr; }
  .definition-grid article { min-height: 190px; border-right: 0; border-bottom: 1px solid var(--line) !important; }
  .definition-grid article:last-child { border-bottom: 0 !important; }
  .definition-grid h3 { margin-top: 32px; }
  .workflow li { min-height: 184px; }
  .definition-list > div, .term-list > div { grid-template-columns: 1fr; gap: 5px; }
  .guide-grid article, .compare article { padding: 22px; }
  .footer-links { grid-template-columns: 1fr; }
  .site-footer { padding-bottom: 80px; }
  .whatsapp-float { right: max(10px, env(safe-area-inset-right)); bottom: max(10px, env(safe-area-inset-bottom)); width: 48px; height: 48px; }
  .whatsapp-float img { width: 28px; height: 28px; }
  .whatsapp-label { display: none; }
  .button-light, .button-outline-light { width: 100%; }
  .review-line { gap: 5px; }
  .review-line span, .review-line a { font-size: .65rem; }
  .content-section { margin-bottom: var(--article-space); }
  .practical-tool { padding: 22px 18px; }
  .content-section h2 { font-size: var(--article-title-size); }
}

.not-found-actions { width: 100%; padding: clamp(26px, 5vw, 48px); border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow); }
.not-found-actions > p { margin-top: 0; color: var(--muted); font-size: 1.05rem; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .directory-card, .brand-card, .product-card, .whatsapp-float { transition: none; }
  .directory-card:hover, .brand-card:hover, .product-card:hover { transform: none; }
}

@media print {
  .whatsapp-float { display: none !important; }
}