:root {
  --paper: #f7f7f4;
  --paper-light: #ffffff;
  --surface: #ffffff;
  --surface-soft: #f7f7f4;
  --surface-warm: #fff7f0;
  --surface-positive: #eef7f1;
  --surface-negative: #fff1ed;
  --section-background: var(--surface);
  --ink: #1c2023;
  --muted: #666d71;
  --line: #dfdfd8;
  --line-strong: #cfcfc6;
  --orange: #ea6114;
  --orange-dark: #b74408;
  --green: #168b50;
  --blue: #b74408;
  --blue-dark: #983603;
  --lime: #dff3e5;
  --coral: #f47b45;
  --dark: #202427;
  --shadow-sm: 0 8px 24px rgba(31, 35, 38, .055);
  --shadow-md: 0 16px 38px rgba(31, 35, 38, .085);
  --shadow-lg: 0 22px 56px rgba(31, 35, 38, .12);
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 24px;
  --radius-pill: 999px;
  --heading-page: clamp(1.85rem, 3.6vw, 2.8rem);
  --heading-section: clamp(1.52rem, 2.8vw, 2.18rem);
  --heading-article: clamp(1.36rem, 2vw, 1.78rem);
  --heading-card: clamp(1.2rem, 2vw, 1.62rem);
  --container: 1180px;
  --content-intro: 820px;
  --content-reading: 780px;
  --content-support: 920px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper-light); font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif; font-size: 16px; line-height: 1.65; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
a { color: inherit; }
button, input { font: inherit; }
button { cursor: pointer; }
img { max-width: 100%; }
section[id] { scroll-margin-top: 24px; }
.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: 12px; left: 12px; z-index: 1000; padding: 10px 16px; background: var(--ink); color: white; border-radius: var(--radius-sm); transform: translateY(-160%); transition: transform .2s; }
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 3px solid var(--coral); outline-offset: 3px; }

h1, h2, h3 { margin: 0; font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif; line-height: 1.12; letter-spacing: -.035em; text-wrap: balance; }
h1, h2 { font-weight: 850; }
h1 { font-size: var(--heading-page); }
h2 { font-size: var(--heading-section); }
h3 { font-size: 1.1rem; }
p { margin: 0 0 1rem; }
.section-kicker, .eyebrow { display: inline-flex; align-items: center; gap: 8px; color: var(--blue); font-size: .75rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.section-kicker::before, .eyebrow::before { content: ""; width: 22px; height: 2px; background: currentColor; }
.eyebrow { margin-bottom: 18px; }

.site-header { background: rgba(255,255,255,.98); border-bottom: 1px solid var(--line); }
.utility { height: 34px; display: flex; align-items: center; justify-content: space-between; color: #526269; font-size: .72rem; letter-spacing: .05em; text-transform: uppercase; }
.header-main { min-height: 86px; display: flex; align-items: center; justify-content: space-between; gap: 34px; }
.wordmark { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; font-weight: 800; font-size: 1.25rem; line-height: 1; }
.wordmark small { display: block; margin-top: 6px; color: var(--muted); font-weight: 600; font-size: .63rem; letter-spacing: .1em; text-transform: uppercase; }
.wordmark-mark { width: 44px; height: 44px; position: relative; display: grid; place-items: center; color: var(--orange); background: #fff7f1; border: 1px solid #f2d2bf; border-radius: 50% 50% 46% 42%; box-shadow: 0 7px 18px rgba(234,97,20,.14); font-size: 1.95rem; font-weight: 900; font-style: italic; line-height: 1; letter-spacing: -.16em; transform: rotate(-4deg); }
.wordmark-mark::after { content: ""; position: absolute; width: 8px; height: 8px; right: 5px; bottom: 5px; background: var(--green); border: 2px solid white; border-radius: 50%; }
.header-search { flex: 0 1 610px; display: flex; padding: 5px; background: var(--surface); border: 1px solid var(--line-strong); border-radius: var(--radius-pill); box-shadow: var(--shadow-sm); }
.header-search input { min-width: 0; flex: 1; height: 44px; padding: 0 14px; border: 0; outline: 0; background: transparent; color: var(--ink); }
.header-search:focus-within, .hero-product-search:focus-within { border-color: var(--orange); box-shadow: 0 0 0 4px rgba(234,97,20,.13), var(--shadow-md); }
.header-search button { height: 44px; padding: 0 20px; border: 0; border-radius: var(--radius-pill); background: var(--orange-dark); color: white; font-weight: 800; }
.main-nav { border-top: 1px solid var(--line); }
.nav-hint { display: none; }
.main-nav ul { display: flex; gap: 30px; margin: 0; padding: 0; list-style: none; overflow-x: auto; scrollbar-width: none; }
.main-nav a { min-height: 46px; position: relative; display: flex; align-items: center; padding: 12px 0 11px; color: #58636a; text-decoration: none; font-size: .88rem; font-weight: 700; white-space: nowrap; }
.main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--orange-dark); }
.main-nav a[aria-current="page"]::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 3px; border-radius: 3px 3px 0 0; background: var(--blue); }

.hero { position: relative; padding: 52px 0 46px; background: var(--section-background); border-bottom: 1px solid var(--line); overflow: hidden; }
.hero h1 { max-width: var(--content-reading); }
.hero-lead { max-width: var(--content-reading); margin: 20px 0 14px; color: #425158; font-size: 1.14rem; line-height: 1.72; }
.trust-note { max-width: var(--content-support); padding-left: 15px; border-left: 3px solid var(--green); color: #59666c; font-size: .88rem; }
.search-hero { min-height: 600px; padding: 44px 0 30px; background-color: var(--surface-soft); background-image: url("../hero.webp"); background-position: center center; background-size: cover; }
.search-hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(255,255,252,.995) 0%, rgba(255,255,252,.99) 43%, rgba(255,255,252,.91) 57%, rgba(255,255,252,.35) 77%, rgba(255,255,252,.08) 100%); }
.search-hero::after { content: ""; position: absolute; inset: auto 0 0; height: 180px; background: linear-gradient(0deg, rgba(247,248,244,.97), rgba(247,248,244,0)); pointer-events: none; }
.search-hero-shell { position: relative; z-index: 1; }
.search-hero-copy { max-width: var(--content-intro); }
.search-hero h1 { max-width: var(--content-intro); color: var(--orange-dark); font-size: clamp(2.45rem, 4.2vw, 3.8rem); line-height: 1.04; letter-spacing: -.05em; text-wrap: balance; }
.search-hero .hero-lead { max-width: var(--content-reading); margin-top: 16px; color: #304047; font-size: 1.08rem; }
.hero-product-search { width: 100%; min-height: 76px; display: flex; align-items: center; gap: 10px; margin-top: 18px; padding: 8px 9px 8px 20px; background: var(--surface); border: 1px solid var(--line-strong); border-radius: var(--radius-pill); box-shadow: var(--shadow-lg); }
.hero-search-field { min-width: 0; flex: 1; display: flex; align-items: center; gap: 13px; }
.hero-search-field input { width: 100%; height: 58px; padding: 0; border: 0; outline: 0; background: transparent; color: var(--ink); font-size: 1rem; }
.hero-search-field input::placeholder { color: #9aa2a5; }
.magnifier, .button-magnifier { position: relative; width: 21px; height: 21px; flex: 0 0 auto; border: 2px solid #9ca4a6; border-radius: 50%; }
.magnifier::after, .button-magnifier::after { content: ""; position: absolute; width: 8px; height: 2px; right: -6px; bottom: -3px; background: currentColor; transform: rotate(45deg); transform-origin: center; }
.source-badges { display: flex; gap: 6px; }
.source-badges i { min-width: 34px; height: 34px; display: grid; place-items: center; padding: 0 7px; color: white; background: #b7b9ba; border: 1px solid rgba(0,0,0,.035); border-radius: 50%; box-shadow: inset 0 -2px 0 rgba(0,0,0,.06); font-style: normal; font-size: .69rem; font-weight: 800; }
.source-badges .source-1688 { min-width: 42px; border-radius: var(--radius-pill); font-size: .6rem; }
.hero-product-search button { min-height: 58px; display: inline-flex; align-items: center; justify-content: center; gap: 12px; padding: 0 25px; border: 0; border-radius: var(--radius-pill); background: var(--orange-dark); color: white; font-weight: 800; white-space: nowrap; }
.hero-product-search button:hover { background: var(--orange-dark); }
.button-magnifier { border-color: white; color: white; }
.hero-shortcuts { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin: 12px 0 14px; color: #687377; font-size: .76rem; }
.hero-shortcuts > span { margin-right: 2px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; }
.search-chip { display: inline-flex; gap: 5px; padding: 6px 11px; color: #4f5c61; background: rgba(255,255,255,.86); border: 1px solid var(--line-strong); border-radius: var(--radius-pill); text-decoration: none; font-weight: 700; }
.search-chip:hover { color: var(--orange-dark); border-color: var(--orange); }
.search-hero .hero-actions { margin-top: 14px; }
.search-hero .button-secondary { background: rgba(255,255,255,.78); border-color: var(--orange); color: var(--orange-dark); }
.hero-flow { width: 100%; display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 26px; }
.hero-flow article { position: relative; padding: 34px 40px 0 0; border-top: 2px dotted rgba(234,97,20,.72); }
.hero-flow article:last-child { border-top-color: transparent; }
.hero-flow article > span { position: absolute; top: -21px; left: 0; width: 41px; height: 41px; display: grid; place-items: center; color: white; background: var(--orange-dark); border-radius: 50%; font-weight: 800; }
.hero-flow h3 { margin-bottom: 6px; font-size: 1rem; letter-spacing: -.02em; }
.hero-flow p { max-width: 230px; margin: 0; color: #4e5b61; font-size: .82rem; line-height: 1.45; }
.search-hero .external-note { position: relative; z-index: 2; margin-top: 16px; color: #687377; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 0 18px; border: 1px solid transparent; border-radius: var(--radius-sm); text-decoration: none; font-weight: 700; font-size: .9rem; transition: transform .18s, background .18s, border-color .18s, box-shadow .18s; }
.button:hover { transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.button-primary { color: white; background: var(--orange-dark); }
.button-primary:hover { background: var(--blue-dark); }
.button-secondary { border-color: var(--line-strong); background: var(--surface); }
.button-light { margin-top: 22px; color: var(--ink); background: var(--lime); }
.external-note { margin-top: 12px; color: #6d777b; font-size: .78rem; }
.external-note a, .large-search small a, .search-fallback a { color: var(--blue); font-weight: 700; }

.home-quick { position: relative; margin-top: -1px; }
.quick-answer { margin: 18px 0 30px; padding: 25px 28px; background: var(--surface-warm); border: 1px solid #f0d6c4; border-radius: var(--radius-md); box-shadow: var(--shadow-sm); }
.home-quick .quick-answer { margin-top: 18px; }
.quick-answer h2 { margin: 7px 0 10px; font-size: 1.12rem; }
.quick-answer p { max-width: var(--content-support); margin: 0; color: #47545c; }
.content-section, .catalog-section, .route-section { padding: 46px 0; }
.catalog-section { background: var(--section-background); border-block: 1px solid var(--line); }
.directory-section { background: var(--section-background); }
.category-directory-head { max-width: var(--content-intro); margin: 0 auto 22px; text-align: center; }
.category-directory-head .section-kicker { justify-content: center; color: var(--orange-dark); }
.category-directory-head h2 { margin: 10px 0 14px; }
.category-directory-head p { margin: 0; color: var(--muted); font-size: 1rem; }
.category-icon-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 14px; }
.category-icon-card { min-width: 0; min-height: 166px; position: relative; display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 13px; padding: 20px 12px 17px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); text-decoration: none; transition: transform .18s, border-color .18s, box-shadow .18s; }
.category-icon-card:hover { transform: translateY(-4px); border-color: var(--orange); box-shadow: var(--shadow-md); }
.category-icon-shell { width: 76px; height: 76px; position: relative; display: grid; place-items: center; background: var(--surface-soft); border: 1px solid var(--line); border-radius: 50%; box-shadow: inset 0 0 0 5px #fbfbf9; }
.category-icon-shell::after { content: ""; position: absolute; width: 23px; height: 3px; left: 50%; bottom: 12px; background: var(--orange); border-radius: 99px; transform: translateX(-50%); }
.directory-icon { width: 46px; height: 46px; display: block; object-fit: contain; opacity: .82; filter: grayscale(1) brightness(.48); transition: filter .18s, opacity .18s, transform .18s; }
.category-icon-card:hover .directory-icon { opacity: 1; filter: invert(42%) sepia(96%) saturate(3050%) hue-rotate(359deg) brightness(96%) contrast(88%); transform: scale(1.04); }
.category-icon-card:nth-child(3n + 2) .category-icon-shell { background: #eef7f1; border-color: #d8e8dd; box-shadow: inset 0 0 0 5px #f9fcfa; }
.category-icon-card:nth-child(3n + 2) .category-icon-shell::after { background: var(--green); }
.category-icon-card strong { color: #242d31; font-size: 1rem; }
.category-arrow { position: absolute; top: 12px; right: 14px; color: transparent; font-size: .85rem; transition: color .18s; }
.category-icon-card:hover .category-arrow { color: var(--orange); }
.directory-note { max-width: var(--content-intro); margin: 16px auto 0; color: #5d676a; text-align: center; font-size: .78rem; }
.directory-footer { display: flex; justify-content: center; margin-top: 14px; }
.route-section { background: var(--section-background); border-block: 1px solid var(--line); }
.split-intro { display: grid; grid-template-columns: .75fr 1.25fr; gap: 64px; align-items: start; }
.split-intro h2 { margin-top: 10px; }
.split-intro p { color: #4e5b61; font-size: 1.04rem; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 18px; }
.section-head h2 { margin: 7px 0 10px; }
.section-head p { max-width: 680px; margin: 0; color: var(--muted); }
.text-link { display: inline-flex; align-items: center; gap: 8px; color: var(--blue); font-weight: 700; text-decoration: none; white-space: nowrap; }
.text-link:hover { text-decoration: underline; }
.category-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 15px; }
.category-card { min-width: 0; padding: 24px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); transition: transform .2s, border-color .2s, box-shadow .2s; }
.category-card:hover { transform: translateY(-3px); border-color: var(--orange); box-shadow: var(--shadow-md); }
.category-card-top { display: flex; align-items: center; justify-content: space-between; }
.category-mark { width: 54px; height: 54px; display: grid; place-items: center; color: var(--blue); background: var(--surface-warm); border-radius: var(--radius-sm); }
.category-mark .directory-icon { width: 32px; height: 32px; }
.category-card:nth-child(3n + 2) .category-mark { background: #e8f6ec; }
.category-card:nth-child(3n + 2) .category-mark .directory-icon { filter: invert(38%) sepia(20%) saturate(1260%) hue-rotate(91deg) brightness(87%) contrast(90%); }
.category-card:nth-child(3n + 3) .category-mark { background: #fff1e8; }
.external-chip { color: #626b6e; font-size: .69rem; letter-spacing: .04em; text-transform: uppercase; }
.category-card h3 { margin: 20px 0 12px; font-size: 1.18rem; }
.category-card p { margin: 0 0 8px; color: #58656b; font-size: .88rem; }
.category-card p strong { color: #344148; }
.card-link { display: inline-flex; align-items: center; justify-content: space-between; width: 100%; margin-top: 15px; padding-top: 14px; border-top: 1px solid var(--line); color: var(--blue); font-size: .88rem; font-weight: 700; text-decoration: none; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.steps article { padding: 26px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); }
.steps article > span { color: var(--blue); font-size: .74rem; font-weight: 800; letter-spacing: .1em; }
.steps h3 { margin: 38px 0 9px; }
.steps p { margin: 0; color: var(--muted); font-size: .9rem; }
.dark-section { padding: 46px 0; color: var(--ink); background: var(--section-background); border-block: 1px solid var(--line); }
.dark-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 60px; align-items: center; }
.dark-section .section-kicker { color: var(--orange-dark); }
.dark-section h2 { margin: 10px 0 18px; }
.dark-section p { color: var(--muted); }
.tick-list { margin: 0; padding: 0; list-style: none; columns: 2; column-gap: 32px; }
.tick-list li { break-inside: avoid; position: relative; margin-bottom: 14px; padding: 14px 14px 14px 39px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); box-shadow: var(--shadow-sm); color: var(--ink); font-size: .88rem; }
.tick-list li::before { content: "✓"; position: absolute; left: 14px; color: var(--green); font-weight: 800; }
.search-ideas-preview { display: grid; grid-template-columns: 1fr .85fr; gap: 52px; align-items: center; }
.search-ideas-preview h2 { margin: 8px 0 17px; }
.search-ideas-preview > div > p { color: #56636a; }
.large-search { padding: 28px; background: var(--surface-soft); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.large-search > label { display: block; font-size: 1.24rem; font-weight: 700; }
.large-search > p { color: var(--muted); font-size: .88rem; }
.large-search > div { display: flex; gap: 8px; }
.large-search input, .search-workbench input { min-width: 0; flex: 1; height: 50px; padding: 0 14px; background: var(--surface); border: 1px solid var(--line-strong); border-radius: var(--radius-sm); }
.large-search button, .search-workbench button { min-height: 50px; padding: 0 16px; border: 0; border-radius: var(--radius-sm); background: var(--blue); color: white; font-weight: 700; }
.large-search small { display: block; margin-top: 10px; color: #5f696c; }
.route-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line-strong); border-left: 1px solid var(--line-strong); }
.route-grid a { min-height: 170px; position: relative; display: flex; flex-direction: column; padding: 23px; border-right: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong); text-decoration: none; transition: background .18s; }
.route-grid a:hover { background: var(--lime); }
.route-grid a > span { color: #566260; font-size: .7rem; font-weight: 700; }
.route-grid strong { margin-top: 32px; font-size: 1.08rem; }
.route-grid small { max-width: 230px; margin-top: 6px; color: #58625f; font-size: .79rem; line-height: 1.4; }
.route-grid b { position: absolute; top: 20px; right: 22px; color: var(--blue); font-size: 1.25rem; }
.article-preview-section { background: var(--section-background); }
.article-hub-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 15px; }
.article-hub-card { min-width: 0; display: flex; flex-direction: column; padding: 26px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); transition: transform .18s, border-color .18s, box-shadow .18s; }
.article-hub-card:hover { transform: translateY(-3px); border-color: var(--orange); box-shadow: var(--shadow-md); }
.article-hub-card.article-feature { grid-column: 1 / -1; background: linear-gradient(115deg, var(--surface-warm), var(--surface-positive)); border-color: #e4c9b6; }
.article-card-top { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.article-label { color: var(--orange-dark); font-size: .68rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.article-meta { color: #626c6f; font-size: .72rem; white-space: nowrap; }
.article-hub-card h3 { max-width: 700px; margin: 22px 0 10px; font-size: var(--heading-card); }
.article-hub-card h3 a { text-decoration: none; }
.article-hub-card h3 a:hover { color: var(--orange-dark); }
.article-hub-card p { max-width: 760px; margin-bottom: 18px; color: #58656a; font-size: .9rem; }
.article-card-link { display: inline-flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: auto; padding-top: 14px; border-top: 1px solid var(--line); color: var(--orange-dark); font-size: .84rem; font-weight: 800; text-decoration: none; }
.closing { padding: 46px 0; background: var(--paper-light); }
.closing-inner { display: flex; align-items: center; justify-content: space-between; gap: 50px; padding: 34px; background: var(--surface-soft); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.closing h2 { max-width: 650px; margin: 9px 0 12px; }
.closing p { max-width: 700px; margin: 0; color: var(--muted); }
.closing-inner > div:last-child { display: flex; flex-direction: column; gap: 10px; min-width: 230px; }

.page-top { padding: 30px 0 34px; background: var(--section-background); border-bottom: 1px solid var(--line); }
.breadcrumbs ol { display: flex; gap: 8px; margin: 0 0 22px; padding: 0; list-style: none; color: #6d777b; font-size: .78rem; }
.breadcrumbs li + li::before { content: "/"; margin-right: 8px; color: #a0a5a4; }
.breadcrumbs a { text-decoration: none; }
.breadcrumbs a:hover { color: var(--blue); }
.page-heading { display: grid; grid-template-columns: 1.3fr .7fr; gap: 50px; align-items: end; }
.page-heading .eyebrow { grid-column: 1 / -1; margin-bottom: -34px; }
.page-heading h1 { max-width: var(--content-intro); font-size: var(--heading-page); }
.page-heading > p { margin: 0; padding-left: 20px; border-left: 2px solid var(--blue); color: #556268; }
.editorial-credit { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 20px; margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--line); color: #59666b; font-size: .78rem; }
.editorial-credit > span { display: inline-flex; align-items: center; flex-wrap: wrap; gap: 5px; }
.editorial-credit > span + span::before { content: "·"; margin-right: 9px; color: #a0a5a4; }
.editorial-credit a { color: var(--blue); font-weight: 700; text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 2px; }
.editorial-credit .text-link { gap: 4px; white-space: normal; }
.article-layout { display: grid; grid-template-columns: minmax(0, 760px) minmax(240px, 1fr); gap: 70px; padding-top: 32px; padding-bottom: 18px; }
.article-flow { padding-top: 32px; padding-bottom: 18px; }
.narrow-flow { max-width: var(--container); }
.article-body > section:not(.quick-answer), .article-flow > section:not(.quick-answer):not(.related) { padding: 27px 0; border-top: 1px solid var(--line); }
.article-body > section:first-of-type { border-top: 0; }
.article-body h2, .article-flow > section h2 { margin-bottom: 14px; font-size: var(--heading-article); }
.article-body h3, .article-flow h3 { letter-spacing: -.02em; }
.article-body p, .article-flow > section > p { max-width: var(--content-reading); color: #4e5b61; }
.article-flow > section > h2 { max-width: var(--content-intro); }
.article-body a:not(.button):not(.inline-card), .article-flow section p a { color: var(--blue); font-weight: 600; }
.article-aside { padding-top: 24px; }
.sticky-note { position: sticky; top: 24px; padding: 25px; background: var(--surface-positive); border: 1px solid #cfe2d5; border-left: 4px solid var(--green); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); }
.sticky-note .section-kicker { color: #52610f; }
.sticky-note h2 { margin: 9px 0 13px; font-size: 1.22rem; }
.sticky-note p { color: #364017; }
.sticky-note a { color: var(--ink); font-weight: 800; text-decoration: none; }
.number-list { margin: 18px 0 0; padding: 0; list-style: none; counter-reset: reading; }
.number-list li { counter-increment: reading; display: grid; grid-template-columns: 190px 1fr; gap: 30px; padding: 17px 0 17px 44px; border-top: 1px solid var(--line); position: relative; }
.number-list li::before { content: counter(reading, decimal-leading-zero); position: absolute; left: 0; top: 18px; color: var(--blue); font-size: .7rem; font-weight: 800; }
.number-list li span { color: #5b686e; }
.inline-card { display: grid; grid-template-columns: 1fr auto; margin-top: 18px; padding: 18px 20px; background: var(--surface-warm); border: 1px solid #f0d6c4; border-radius: var(--radius-sm); text-decoration: none; }
.inline-card span { grid-column: 1 / -1; color: var(--muted); font-size: .7rem; letter-spacing: .1em; text-transform: uppercase; }
.inline-card b { color: var(--blue); }
.comparison { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.comparison article { padding: 23px; border: 1px solid var(--line); border-radius: var(--radius-md); }
.comparison article > span { font-size: .68rem; font-weight: 800; letter-spacing: .09em; }
.comparison .positive { background: var(--surface-positive); }
.comparison .positive > span { color: #377044; }
.comparison .negative { background: var(--surface-negative); }
.comparison .negative > span { color: #a74a38; }
.comparison h3 { margin: 18px 0 10px; }
.comparison p { margin: 0; color: #526066; font-size: .9rem; }
.evidence-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.evidence-grid article { padding: 23px; background: var(--surface-soft); border: 1px solid var(--line); border-radius: var(--radius-md); }
.evidence-grid article > span { color: var(--green); font-size: .68rem; font-weight: 800; letter-spacing: .1em; }
.evidence-grid h3 { margin: 20px 0 9px; }
.evidence-grid p { margin: 0; color: #59666b; font-size: .9rem; }
.decision-strip { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border: 1px solid var(--line); border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-sm); }
.decision-strip article { padding: 23px; background: var(--surface); }
.decision-strip article + article { border-left: 1px solid var(--line); }
.decision-strip article > span { color: var(--orange-dark); font-size: .69rem; font-weight: 800; letter-spacing: .1em; }
.decision-strip h3 { margin: 24px 0 9px; }
.decision-strip p { margin: 0; color: #5b686d; font-size: .88rem; }
.note-template { margin: 18px 0; padding: 25px; color: #eef4f3; background: var(--dark); border-left: 4px solid var(--orange); border-radius: var(--radius-md); }
.note-template > span { color: var(--lime); font-size: .68rem; font-weight: 800; letter-spacing: .11em; }
.note-template pre { margin: 16px 0 0; padding: 0; color: #eff5f4; background: transparent; font: 500 .88rem/1.75 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; white-space: pre-wrap; overflow-wrap: anywhere; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-md); }
.table-wrap:focus-within { border-color: var(--orange); box-shadow: 0 0 0 3px rgba(234,97,20,.11); }
.evidence-table { width: 100%; min-width: 690px; border-collapse: collapse; background: white; font-size: .84rem; }
.evidence-table th, .evidence-table td { padding: 13px 15px; border-bottom: 1px solid var(--line); border-right: 1px solid var(--line); text-align: left; vertical-align: top; }
.evidence-table tr:last-child th, .evidence-table tr:last-child td { border-bottom: 0; }
.evidence-table th:last-child, .evidence-table td:last-child { border-right: 0; }
.evidence-table thead th { color: #314047; background: #edf5ed; font-size: .72rem; letter-spacing: .05em; text-transform: uppercase; }
.evidence-table tbody th { width: 145px; color: #3f4c52; background: var(--paper); }
.table-note { margin-top: 10px !important; color: #747d80 !important; font-size: .76rem; }
.editorial-note { padding: 30px !important; background: var(--surface-positive); border: 1px solid #cfe2d2 !important; border-radius: var(--radius-md); }
.editorial-note .section-kicker { color: var(--green); }
.editorial-note h2 { margin-top: 10px; }
.editorial-note p { margin-bottom: 0; }
.related { display: grid; grid-template-columns: .55fr 1.45fr; gap: 44px; margin: 30px 0 38px; padding: 20px 0; border-block: 1px solid var(--line); }
.related h2 { margin-top: 7px; font-size: 1.22rem; }
.related-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.related-links a { display: flex; justify-content: space-between; padding: 13px 14px; background: var(--surface-soft); border: 1px solid var(--line); border-radius: var(--radius-sm); text-decoration: none; font-size: .88rem; font-weight: 700; }
.related-links a:hover { color: var(--blue); }
.choice-grid, .term-grid, .score-grid, .weight-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.choice-grid article, .term-grid article, .score-grid article, .weight-grid article { padding: 22px; background: var(--surface-soft); border: 1px solid var(--line); border-radius: var(--radius-md); }
.choice-grid article > span { color: var(--blue); font-size: .7rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.choice-grid h3, .term-grid h3, .score-grid h3, .weight-grid h3 { margin: 22px 0 10px; }
.choice-grid p, .term-grid p, .score-grid p, .weight-grid p { margin: 0; color: #5b686e; font-size: .88rem; }
.line-list { margin: 0; padding: 0; list-style: none; }
.line-list li { display: grid; grid-template-columns: .85fr 1.15fr; gap: 24px; padding: 16px 0; border-top: 1px solid var(--line); }
.line-list li span { color: #5e696e; }
.danger-list strong::before { content: "×"; margin-right: 10px; color: var(--coral); }
.check-panel { display: grid; grid-template-columns: .8fr 1.2fr; gap: 60px; padding: 32px !important; background: var(--dark); color: white; border: 0 !important; border-radius: var(--radius-lg); }
.check-panel .section-kicker { color: var(--lime); }
.check-panel h2 { margin-top: 9px; }
.check-panel ol { margin: 0; padding-left: 22px; color: #dce5e6; }
.check-panel li { padding: 5px 0 5px 7px; }
.term-grid { grid-template-columns: repeat(2, 1fr); }
.search-workbench { display: grid; grid-template-columns: .7fr 1.3fr; gap: 35px; align-items: center; padding: 28px !important; background: var(--surface-warm); border: 1px solid #f0d6c4 !important; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.search-workbench p { margin: 6px 0 0; }
.search-workbench .search-fallback { margin-top: 8px; font-size: .78rem; }
.search-workbench form { display: flex; gap: 8px; }
.score-badge { min-width: 70px; height: 70px; display: grid; place-items: center; color: var(--orange-dark); background: #fff0e5; border-radius: 50%; font-weight: 800; font-size: 1.25rem; }
.checklist { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.checklist li { display: flex; gap: 16px; padding: 17px 3px; border-bottom: 1px solid var(--line); font-weight: 600; }
.checklist span { color: var(--blue); font-size: 1.25rem; line-height: 1.2; }
.score-grid { grid-template-columns: repeat(4, 1fr); }
.score-grid article > strong { color: var(--blue); font-size: 1.65rem; }
.score-grid h3 { margin-top: 18px; }
.save-rule { padding: 34px !important; background: var(--surface-positive); border: 1px solid #cfe2d5 !important; border-radius: var(--radius-lg); }
.save-rule .section-kicker { color: #556510; }
.save-rule h2 { margin: 9px 0 10px !important; }
.save-rule p { margin: 0; color: #445017 !important; }
.weight-grid { grid-template-columns: repeat(2, 1fr); }
.weight-level { display: inline-flex; padding: 4px 9px; border-radius: var(--radius-pill); font-size: .66rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.weight-level.high { color: #943c2d; background: #ffe0d8; }
.weight-level.medium { color: #745d14; background: #fff0bb; }
.weight-level.low { color: #2e6645; background: #dff2e5; }
.weight-grid h3 { margin-top: 22px; }
.formula-note { margin-top: 24px; padding: 24px; background: var(--ink); color: white; border-left: 4px solid var(--green); border-radius: var(--radius-md); }
.formula-note > span { color: var(--lime); font-size: .68rem; font-weight: 800; letter-spacing: .1em; }
.formula-note strong { display: block; margin: 13px 0 8px; font-size: 1.1rem; }
.formula-note p { margin: 0; color: #b9c5c8; font-size: .85rem; }
.faq-list details { border-top: 1px solid var(--line); }
.faq-list details:last-child { border-bottom: 1px solid var(--line); }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 20px 2px; font-weight: 700; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span { color: var(--blue); font-size: 1.3rem; transition: transform .2s; }
.faq-list details[open] summary span { transform: rotate(45deg); }
.faq-list details div { max-width: var(--content-intro); padding: 0 2px 18px; color: #536167; }
.boundary-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.boundary-grid article { padding: 26px; border: 1px solid var(--line); border-radius: var(--radius-md); }
.boundary-grid article:first-child { background: var(--surface-positive); }
.boundary-grid article:last-child { background: var(--surface-negative); }
.boundary-grid article > span { font-size: .7rem; font-weight: 800; letter-spacing: .1em; }
.boundary-grid ul { margin: 17px 0 0; padding-left: 18px; }
.boundary-grid li { margin: 8px 0; }
.not-found { min-height: 62vh; display: grid; place-items: center; padding: 80px 0; text-align: center; background: var(--section-background); }
.not-found .container { max-width: 720px; }
.error-code { display: inline-block; margin-bottom: 16px; color: var(--blue); font-size: 4rem; font-weight: 800; letter-spacing: -.08em; }
.not-found p { max-width: 580px; margin: 22px auto; color: var(--muted); }
.not-found .hero-actions { justify-content: center; }

.site-footer { color: #eef1f1; background: #1d2123; }
.footer-top { display: grid; grid-template-columns: .8fr 1.2fr; gap: 60px; padding-block: 38px 30px; }
.wordmark-footer { color: white; }
.wordmark-footer small { color: #aebdc1; }
.footer-trust { max-width: 520px; margin-top: 22px; color: #aebdc1; font-size: .86rem; }
.site-footer nav ul { display: grid; grid-template-columns: repeat(3, 1fr); gap: 11px 25px; margin: 0; padding: 0; list-style: none; }
.site-footer nav a { color: #d3dddf; text-decoration: none; font-size: .85rem; }
.site-footer nav a:hover { color: var(--lime); }
.footer-bottom { min-height: 52px; display: flex; align-items: center; justify-content: space-between; border-top: 1px solid rgba(255,255,255,.11); color: #82969b; font-size: .72rem; letter-spacing: .04em; }

#whatsapp-float { position: fixed; right: max(18px, env(safe-area-inset-right)); bottom: max(18px, env(safe-area-inset-bottom)); z-index: 100; width: 58px; height: 58px; display: flex; align-items: center; justify-content: center; color: white; background: #25d366; border: 0; 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: white; outline: 3px solid white; outline-offset: 3px; transform: translateY(-2px) scale(1.04); box-shadow: 0 16px 36px rgba(9, 46, 28, .38); }
#whatsapp-float img { width: 32px; height: 32px; display: block; }
.whatsapp-float-label { width: max-content; max-width: 210px; position: absolute; top: 50%; right: 68px; padding: .55rem .7rem; color: white; 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-float-label, #whatsapp-float:focus-visible .whatsapp-float-label { opacity: 1; visibility: visible; }

@media (hover: none) {
  .button:hover, .category-icon-card:hover, .category-card:hover, .article-hub-card:hover { transform: none; }
  .category-icon-card .category-arrow { color: var(--orange); }
}

@media (max-width: 900px) {
  .header-main { align-items: flex-start; flex-direction: column; padding-block: 18px; gap: 16px; }
  .header-search { width: 100%; flex-basis: auto; }
  .hero { padding-top: 48px; }
  .page-heading, .article-layout, .search-ideas-preview, .dark-grid { grid-template-columns: 1fr; gap: 30px; }
  .search-hero { min-height: auto; background-position: 62% center; }
  .search-hero::before { background: linear-gradient(90deg, rgba(250,250,247,.99) 0%, rgba(250,250,247,.96) 58%, rgba(250,250,247,.68) 100%); }
  .hero-product-search { border-radius: var(--radius-lg); }
  .source-badges { display: none; }
  .page-heading .eyebrow { margin-bottom: -25px; }
  .page-heading > p { max-width: 720px; }
  .article-aside { padding-top: 0; }
  .sticky-note { position: static; transform: none; }
  .category-grid { grid-template-columns: 1fr; }
  .category-icon-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .article-hub-grid { grid-template-columns: 1fr; }
  .article-hub-card.article-feature { grid-column: auto; }
  .route-grid { grid-template-columns: repeat(2, 1fr); }
  .score-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr; gap: 26px; }
}

@media (max-width: 680px) {
  .container { width: min(calc(100% - 28px), var(--container)); }
  body { font-size: 15px; }
  .utility { height: 30px; }
  .utility span:last-child { display: none; }
  .header-main { min-height: auto; }
  .header-search input { font-size: .85rem; }
  .header-search button { padding-inline: 14px; }
  .main-nav .container { width: 100%; }
  .nav-hint { display: block; padding: 7px 14px 0; color: var(--muted); font-size: .68rem; font-weight: 600; letter-spacing: .04em; }
  .main-nav ul { padding-inline: 14px; gap: 22px; scroll-snap-type: x proximity; }
  .main-nav li { scroll-snap-align: start; }
  .hero { padding: 34px 0; }
  .hero h1 { font-size: clamp(2.35rem, 12vw, 3.25rem); }
  .hero-actions .button { width: 100%; }
  .search-hero { padding: 32px 0 28px; background-position: 68% top; }
  .search-hero::before { background: rgba(250,250,247,.9); }
  .search-hero h1 { font-size: clamp(2.05rem, 9.8vw, 2.95rem); }
  .hero-product-search { align-items: stretch; flex-direction: column; gap: 8px; padding: 10px; border-radius: var(--radius-md); }
  .hero-search-field { min-height: 54px; padding-inline: 8px; }
  .hero-product-search button { width: 100%; min-height: 52px; }
  .hero-flow { grid-template-columns: 1fr; gap: 0; margin-top: 36px; }
  .hero-flow article, .hero-flow article:last-child { min-height: 92px; padding: 16px 0 22px 56px; border-top: 0; border-left: 2px dotted rgba(234,97,20,.72); }
  .hero-flow article:last-child { border-left-color: transparent; }
  .hero-flow article > span { top: 0; left: -21px; }
  .content-section, .catalog-section, .route-section { padding: 36px 0; }
  .dark-section, .closing { padding: 36px 0; }
  .split-intro, .related, .check-panel, .search-workbench { grid-template-columns: 1fr; gap: 26px; }
  .steps, .choice-grid, .term-grid, .weight-grid, .boundary-grid, .evidence-grid, .decision-strip { grid-template-columns: 1fr; }
  .decision-strip article + article { border-top: 1px solid var(--line); border-left: 0; }
  .tick-list { columns: 1; }
  .large-search > div, .search-workbench form { flex-direction: column; }
  .large-search button, .search-workbench button { width: 100%; }
  .route-grid { grid-template-columns: 1fr; }
  .category-icon-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .category-icon-card { min-height: 146px; padding: 16px 8px 14px; }
  .category-icon-shell { width: 66px; height: 66px; }
  .directory-icon { width: 40px; height: 40px; }
  .route-grid a { min-height: 145px; }
  .closing-inner { align-items: stretch; flex-direction: column; padding: 27px; gap: 24px; }
  .page-top { padding: 22px 0 28px; }
  .breadcrumbs ol { margin-bottom: 18px; }
  .page-heading { gap: 20px; }
  .page-heading .eyebrow { margin-bottom: 0; }
  .page-heading > p { padding-left: 15px; }
  .editorial-credit { align-items: flex-start; flex-direction: column; gap: 7px; }
  .editorial-credit > span + span::before { content: none; }
  .article-layout, .article-flow { padding-top: 22px; }
  .quick-answer { margin-bottom: 24px; padding: 21px; }
  .article-body > section:not(.quick-answer), .article-flow > section:not(.quick-answer):not(.related) { padding: 24px 0; }
  .related { margin: 24px 0 30px; padding: 16px 0; }
  .number-list li { grid-template-columns: 1fr; gap: 6px; padding-left: 38px; }
  .comparison { grid-template-columns: 1fr; }
  .related-links { grid-template-columns: 1fr; }
  .score-grid { grid-template-columns: 1fr; }
  .line-list li { grid-template-columns: 1fr; gap: 6px; }
  .section-head { align-items: start; flex-direction: column; }
  .footer-top { padding-block: 34px 26px; }
  .site-footer nav ul { grid-template-columns: repeat(2, 1fr); }
  .footer-bottom { align-items: flex-start; flex-direction: column; justify-content: center; gap: 2px; padding-block: 10px; }
  #whatsapp-float { right: max(14px, env(safe-area-inset-right)); bottom: max(14px, env(safe-area-inset-bottom)); width: 54px; height: 54px; }
  .whatsapp-float-label { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}

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