:root {
  color-scheme: light;
  --ink: #30363a;
  --ink-soft: #5c6662;
  --paper: #ffffff;
  --surface: #ffffff;
  --surface-soft: #ffffff;
  --surface-tint: #ffffff;
  --line: #dbe7e2;
  --line-strong: #bfd9cd;
  --accent: #49bd8a;
  --accent-dark: #247e59;
  --blue: #236a4d;
  --blue-soft: #e9f6f0;
  --good: #247e59;
  --catalog-green: #247e59;
  --catalog-green-dark: #1f6e4e;
  --catalog-bright: #49bd8a;
  --catalog-mint: #e7f6ef;
  --catalog-shell: #f2f6f6;
  --shadow: 0 20px 50px rgba(40, 95, 72, 0.1);
  --shadow-card: 0 8px 24px rgba(31, 110, 78, 0.065);
  --shadow-hover: 0 14px 30px rgba(31, 110, 78, 0.12);
  --radius: 20px;
  --radius-card: 14px;
  --radius-control: 12px;
  --content: 1140px;
  --section-gap: clamp(1.7rem, 3vw, 2.6rem);
  --article-section-gap: clamp(1.55rem, 2.4vw, 2.15rem);
  --section-title-size: clamp(1.45rem, 2.8vw, 2rem);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.68;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }
a { color: var(--accent-dark); text-underline-offset: 0.22em; text-decoration-thickness: 0.08em; }
a:hover { color: #14583d; }
a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible {
  outline: 3px solid #145c41;
  outline-offset: 4px;
}

.shell { width: min(calc(100% - 2rem), var(--content)); margin-inline: auto; }
.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: 0.6rem;
  background: var(--ink);
  color: #fff;
  transform: translateY(-180%);
}
.skip-link:focus { transform: translateY(0); }
.visually-hidden {
  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: relative;
  z-index: 20;
  border-bottom: 0;
  background: var(--catalog-green);
  box-shadow: 0 2px 12px rgba(16, 55, 41, 0.08);
}
.header-top {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding-block: 0.55rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: #fff;
  text-decoration: none;
}
.brand-glyph {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  color: #fff;
}
.brand-glyph svg { width: 100%; height: 100%; fill: currentColor; overflow: visible; }
.brand-copy { min-width: 0; }
.brand strong { display: block; color: #fff; font-size: 1.08rem; line-height: 1.08; letter-spacing: -0.025em; }
.brand small { display: none; margin-top: 0.22rem; color: #fff; font-size: 0.71rem; letter-spacing: 0.055em; text-transform: uppercase; }
.header-catalog { display: none; }
.header-actions { display: flex; align-items: center; gap: 0.65rem; }
.language-menu { position: relative; }
.language-menu summary {
  display: flex;
  min-height: 44px;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 0.75rem;
  border: 1px solid rgba(255,255,255,0.58);
  border-radius: 999px;
  background: rgba(0,0,0,0.08);
  color: #fff;
  cursor: pointer;
  font-size: 0.82rem;
  list-style: none;
}
.language-menu summary::-webkit-details-marker { display: none; }
.language-menu summary span { display: none; color: #fff; }
.language-menu summary strong { font-weight: 780; }
.language-menu summary::after { color: #fff; content: "▾"; font-size: 0.72rem; }
.language-menu[open] summary::after { content: "▴"; }
.language-panel {
  position: absolute;
  z-index: 50;
  top: calc(100% + 0.65rem);
  right: 0;
  left: auto;
  width: min(620px, calc(100vw - 3rem));
  max-height: min(68vh, 580px);
  overflow-y: auto;
  padding: 0.8rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: #fff;
  box-shadow: var(--shadow);
}
.language-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.35rem; }
.language-grid a {
  display: flex;
  min-height: 44px;
  align-items: center;
  padding: 0.55rem 0.7rem;
  border-radius: 0.6rem;
  color: var(--ink);
  font-size: 0.88rem;
  font-weight: 680;
  text-decoration: none;
}
.language-grid a:hover { background: var(--blue-soft); color: var(--ink); }
.language-grid a[aria-current="page"] { background: var(--catalog-green-dark); color: #fff; }
.header-catalog, .button {
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-weight: 760;
  line-height: 1.25;
  text-align: center;
  text-decoration: none;
}
.header-catalog { padding: 0.65rem 1rem; border: 1px solid rgba(255,255,255,0.72); background: #fff; color: var(--catalog-green-dark); }
.nav-wrap { border-top: 1px solid rgba(255,255,255,0.28); border-bottom: 1px solid var(--line); background: #fff; }
.desktop-nav { display: none; }
.mobile-nav { position: relative; }
.mobile-nav summary {
  display: flex;
  min-height: 48px;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  color: var(--ink);
  font-weight: 750;
  list-style: none;
}
.mobile-nav summary::-webkit-details-marker { display: none; }
.mobile-nav summary::after { content: "+"; font-size: 1.25rem; }
.mobile-nav[open] summary::after { content: "–"; }
.mobile-nav nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.45rem;
  padding-bottom: 0.75rem;
}
.mobile-nav a {
  display: flex;
  min-height: 44px;
  align-items: center;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-control);
  background: var(--surface);
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 680;
  text-decoration: none;
}
.mobile-nav a[aria-current="page"] { border-color: var(--catalog-green); background: #fff; color: var(--catalog-green-dark); }

.catalog-search-band {
  border-bottom: 1px solid var(--line);
  background: var(--catalog-shell);
}
.catalog-search-band-inner {
  display: grid;
  gap: 0.9rem;
  align-items: center;
  padding-block: 1rem;
}
.catalog-search-heading p {
  margin: 0 0 0.18rem;
  color: var(--accent-dark);
  font-size: 0.72rem;
  font-weight: 820;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.catalog-search-heading h2 {
  margin: 0;
  color: #3f4b47;
  font-family: inherit;
  font-size: clamp(1.05rem, 1.7vw, 1.25rem);
  font-weight: 680;
  letter-spacing: -0.02em;
}
.catalog-search-band-form.catalog-search {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}
.catalog-search-band-form .form-note { margin: 0.48rem 0 0 0.9rem; font-size: 0.78rem; }

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(2.4rem, 4.3vw, 3.5rem) 0 clamp(2.6rem, 4.8vw, 3.9rem);
  border-bottom: 1px solid var(--line);
  background: #fff;
}
.hero::after { display: none; }
.hero-grid { position: relative; z-index: 1; display: grid; gap: 1.6rem; }
.eyebrow, .section-label {
  margin: 0 0 0.65rem;
  color: var(--accent-dark);
  font-size: 0.76rem;
  font-weight: 820;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}
.eyebrow::before, .section-label::before { content: ""; display: inline-block; width: 1.7rem; height: 2px; margin: 0 0.6rem 0.25rem 0; background: var(--catalog-bright); }
h1, h2, h3 { color: var(--ink); font-family: inherit; font-weight: 680; line-height: 1.14; }
h1 { max-width: 880px; margin: 0; font-size: clamp(2.35rem, 5.4vw, 4.15rem); letter-spacing: -0.045em; }
.localized-hero h1 { max-width: 920px; font-size: clamp(2rem, 4.2vw, 3.45rem); }
.article-hero h1 { max-width: 920px; font-size: clamp(1.9rem, 3.6vw, 2.9rem); }
.lede { max-width: 780px; margin: 1rem 0 0; color: var(--ink-soft); font-size: clamp(1.05rem, 2.2vw, 1.3rem); }
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.1rem;
  margin-top: 1rem;
  color: #43564e;
  font-size: 0.82rem;
  font-weight: 700;
}
.article-meta span { display: inline-flex; align-items: center; gap: 0.4rem; }
.article-meta span:not(:first-child)::before { color: var(--catalog-bright); content: "•"; }
.article-meta a { color: inherit; font-weight: 760; }
.trust-statement {
  max-width: 820px;
  margin: 1rem 0 0;
  padding: 0.85rem 1rem;
  border-left: 4px solid var(--accent);
  background: #fff;
  color: #46564f;
  font-size: 0.94rem;
}
.hero-actions, .inline-actions { display: flex; flex-wrap: wrap; gap: 0.65rem; margin-top: 1.15rem; }
.button { display: inline-flex; padding: 0.76rem 1.12rem; border: 1px solid var(--ink); }
.button, .header-catalog {
  box-shadow: 0 4px 12px rgba(16, 55, 41, 0.06);
  transition: border-color 160ms ease, background 160ms ease, color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}
.button:hover, .header-catalog:hover { box-shadow: 0 7px 18px rgba(16, 55, 41, 0.11); transform: translateY(-1px); }
.button.primary { border-color: var(--catalog-green); background: var(--catalog-green); color: #fff; }
.button.primary:hover { border-color: var(--catalog-green-dark); background: var(--catalog-green-dark); color: #fff; }
.button.secondary { border-color: #94cdb5; background: #fff; color: var(--catalog-green-dark); }
.button.light { border-color: #fff; background: #fff; color: var(--ink); }
.button.outline-light { border-color: rgba(255,255,255,0.7); color: #fff; }
.text-link { display: inline-flex; min-height: 44px; align-items: center; padding-inline: 0.25rem; font-weight: 760; }

.research-slip {
  align-self: end;
  max-width: 440px;
  padding: 1.15rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
  transform: none;
}
.slip-head { display: flex; justify-content: space-between; gap: 1rem; padding-bottom: 0.8rem; border-bottom: 1px dashed var(--line); color: var(--ink-soft); font-size: 0.72rem; font-weight: 780; letter-spacing: 0.09em; text-transform: uppercase; }
.research-slip h2 { margin: 0.8rem 0 0.7rem; font-size: 1.25rem; }
.research-slip ol { margin: 0; padding: 0; list-style: none; counter-reset: slip; }
.research-slip li { display: grid; grid-template-columns: 2rem 1fr; gap: 0.65rem; align-items: start; padding: 0.5rem 0; border-top: 1px solid #ebe7df; counter-increment: slip; }
.research-slip li::before { content: counter(slip, decimal-leading-zero); color: var(--accent-dark); font-size: 0.78rem; font-weight: 820; }
.research-slip p { margin: 0.15rem 0 0; color: var(--ink-soft); font-size: 0.9rem; }

.catalog-search {
  max-width: 820px;
  margin-top: 1.15rem;
  padding: 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--catalog-shell);
}
.catalog-search label {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 0.7rem;
  color: #35423e;
  font-weight: 780;
}
.catalog-search label::before {
  width: 0.62rem;
  height: 0.62rem;
  border-radius: 50%;
  background: var(--catalog-green);
  box-shadow: 0 0 0 4px var(--catalog-mint);
  content: "";
}
.search-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  overflow: hidden;
  border: 1.5px solid var(--catalog-green);
  border-radius: var(--radius-control);
  background: #fff;
  box-shadow: 0 10px 28px rgba(37, 132, 96, 0.09);
  transition: border-color 160ms ease, box-shadow 160ms ease;
}
.search-row:focus-within {
  border-color: var(--catalog-green-dark);
  box-shadow: 0 0 0 4px var(--catalog-mint), 0 12px 30px rgba(37, 132, 96, 0.12);
}
.catalog-search input {
  min-width: 0;
  min-height: 56px;
  padding: 0.8rem 1rem 0.8rem 3rem;
  border: 0;
  border-radius: 0;
  background-color: #fff;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%23747d79' stroke-width='2' stroke-linecap='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='m20 20-4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: 1.15rem center;
  color: var(--ink);
  font: inherit;
}
.catalog-search input::placeholder { color: #8e9793; opacity: 1; }
.catalog-search input:focus-visible { outline: 0; }
.catalog-search button {
  min-height: 52px;
  padding: 0.75rem 1.25rem;
  border: 0;
  border-radius: 0;
  background: var(--catalog-green);
  color: #fff;
  font: inherit;
  font-weight: 820;
  cursor: pointer;
  transition: background 160ms ease;
}
.catalog-search button:hover { background: var(--catalog-green-dark); }
.catalog-search button:focus-visible { outline-color: var(--ink); outline-offset: -5px; }
.catalog-search .form-note { margin: 0.5rem 0 0; color: #51625c; font-size: 0.85rem; }

.page-main { padding: 0 0 3.5rem; }
.home-main { padding-bottom: 0; }
.content-stack { display: grid; gap: 0; }
.content-section, .quick-answer, .closing-panel, .category-section {
  width: 100%;
  max-width: none;
  margin-top: var(--section-gap);
}
.content-section h2, .category-section h2 { margin: 0 0 0.8rem; font-size: var(--section-title-size); letter-spacing: -0.025em; }
.content-section h3, .category-section h3 { margin: 1.35rem 0 0.45rem; font-size: clamp(1.18rem, 2.5vw, 1.45rem); }
.content-section p, .content-section li, .category-section p { color: #52605a; }
.content-section > p, .content-section > ul, .content-section > ol, .quick-answer > p { max-width: 72ch; }
.content-section strong, .content-section b { color: var(--ink); }
.content-section > :first-child { margin-top: 0; }
.content-section > :last-child { margin-bottom: 0; }

.quick-answer {
  padding: clamp(1.25rem, 3vw, 1.8rem);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--surface-tint);
  box-shadow: var(--shadow-card);
}
.quick-answer h2 { margin: 0 0 0.65rem; font-size: clamp(1.35rem, 2.6vw, 1.75rem); }
.quick-answer p { margin: 0.45rem 0; color: #3e5b4e; }

.definition-grid, .method-grid, .guide-grid, .example-grid, .risk-grid, .score-grid, .category-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.8rem;
  margin-top: 1.05rem;
}
.definition-grid > *, .method-grid > *, .guide-grid > *, .example-card, .risk-grid > *, .score-grid > * {
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--surface);
  box-shadow: var(--shadow-card);
}
.definition-grid h3, .method-grid h3, .guide-grid h3, .risk-grid h3 { margin-top: 0; }
.definition-grid p, .method-grid p, .guide-grid p, .risk-grid p { margin-bottom: 0; }
.guide-grid a { display: inline-block; margin-top: 0.4rem; font-weight: 750; }
.method-grid .number { display: inline-block; margin-bottom: 0.5rem; color: var(--accent-dark); font-size: 0.78rem; font-weight: 820; letter-spacing: 0.1em; }

.steps { margin: 1.1rem 0 0; padding: 0; list-style: none; counter-reset: steps; }
.steps li { display: grid; grid-template-columns: 2.7rem 1fr; gap: 0.8rem; padding: 0.9rem 0; border-top: 1px solid var(--line); counter-increment: steps; }
.steps li::before { content: counter(steps, decimal-leading-zero); color: var(--accent-dark); font-size: 0.8rem; font-weight: 840; letter-spacing: 0.08em; }
.steps h3 { margin: 0 0 0.35rem; }
.steps p { margin: 0; }

.callout, .note, .caution {
  margin: 1.1rem 0;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-left-width: 4px;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}
.callout { border-left-color: var(--blue); background: var(--surface-tint); }
.note { border-left-color: var(--good); background: var(--surface-soft); }
.caution { border-left-color: var(--accent); background: #fff; }
.callout h3, .note h3, .caution h3 { margin-top: 0; }
.callout p:last-child, .note p:last-child, .caution p:last-child { margin-bottom: 0; }

.category-grid { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.category-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--surface);
  box-shadow: var(--shadow-card);
  color: var(--ink);
  text-decoration: none;
  transition: border-color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}
.category-card:hover { border-color: var(--catalog-green); color: var(--ink); transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.category-card .category-icon { display: grid; width: 3.4rem; height: 3.4rem; place-items: center; margin-bottom: 0.75rem; color: #202421; }
.category-card .category-icon svg { width: 100%; height: 100%; fill: none; stroke: currentColor; stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.category-card h3 { margin: 0; font-size: 1.25rem; }
.category-card p { margin: 0.5rem 0 0; font-size: 0.91rem; }
.category-card .check-first { padding-top: 0.6rem; border-top: 1px dashed var(--line); }
.category-card .card-cta { display: inline-flex; min-height: 44px; align-items: center; margin-top: auto; padding-top: 0.65rem; color: var(--accent-dark); font-weight: 780; }
.directory-heading { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 0.8rem 1.5rem; margin-bottom: 1.1rem; }
.directory-heading > div { max-width: 720px; }
.directory-heading h2 { margin-bottom: 0.55rem; }
.directory-heading p:last-child { margin-bottom: 0; }
.directory-all-link { display: inline-flex; min-height: 44px; align-items: center; color: var(--catalog-green-dark); font-size: 1rem; font-weight: 700; text-decoration: none; }
.directory-all-link:hover { text-decoration: underline; }
.catalog-directory-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.75rem; margin-top: 0; }
.directory-card {
  min-height: 178px;
  align-items: center;
  justify-content: center;
  border-color: var(--line-strong);
  border-radius: var(--radius-card);
  background: var(--surface);
  text-align: center;
}
.directory-card:hover h3 { color: var(--catalog-green-dark); }
.directory-card .category-icon { width: 3.75rem; height: 3.75rem; margin-bottom: 0.75rem; }
.directory-card h3 { font-size: 1.12rem; }
.directory-meta { margin-top: 0.5rem; color: #3f7059; font-size: 0.72rem; font-weight: 720; letter-spacing: 0.12em; text-transform: uppercase; }
.directory-guide-link { margin: 0.9rem 0 0; }
.directory-guide-link a { font-weight: 720; }
.brand-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem 0.75rem;
  margin-top: 1.1rem;
}
.brand-card {
  display: grid;
  min-width: 0;
  grid-template-rows: 1fr auto;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: #fff;
  box-shadow: 4px 4px 0 #eef4f1, var(--shadow-card);
  color: var(--ink);
  text-decoration: none;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}
.brand-card:hover {
  border-color: var(--catalog-green);
  box-shadow: 4px 4px 0 #dcefe6, var(--shadow-hover);
  color: var(--catalog-green-dark);
  transform: translateY(-2px);
}
.brand-logo {
  display: grid;
  min-height: 118px;
  place-items: center;
  padding: 0.95rem;
  background: #fff;
}
.brand-logo img {
  width: 100%;
  max-width: 150px;
  height: auto;
  max-height: 72px;
  object-fit: contain;
  filter: grayscale(1) brightness(0);
}
.brand-name {
  display: flex;
  min-height: 52px;
  align-items: center;
  padding: 0.7rem 0.8rem;
  border-top: 1px solid var(--line);
  background: #fff;
  font-size: 0.92rem;
  line-height: 1.2;
}
.external-note { color: var(--ink-soft); font-size: 0.86rem; }

.check-list { margin: 1.05rem 0; padding: 0; list-style: none; }
.check-list li { position: relative; min-height: 2rem; margin: 0.35rem 0; padding-left: 2rem; }
.check-list li::before { position: absolute; top: 0.17rem; left: 0; display: grid; width: 1.25rem; height: 1.25rem; place-items: center; border: 2px solid var(--good); border-radius: 0.25rem; color: var(--good); content: ""; }
.check-list.checked li::before { content: "✓"; font-size: 0.75rem; font-weight: 900; }
.red-flag-list li::marker { color: var(--accent); }

.example-card strong { display: block; margin-bottom: 0.7rem; font-family: inherit; font-size: 1.2rem; }
.example-card.good { border-top: 4px solid var(--good); }
.example-card.weak { border-top: 4px solid var(--accent); }
.score-grid > * { border-top: 4px solid var(--blue); }
.score-grid b { display: block; font-family: inherit; font-size: 1.3rem; }

.comparison-table {
  width: 100%;
  margin: 1.1rem 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-spacing: 0;
  border-radius: var(--radius-card);
  border-collapse: separate;
  background: var(--surface);
  box-shadow: var(--shadow-card);
  font-size: 0.94rem;
}
.comparison-table th, .comparison-table td { padding: 0.8rem; border: 0; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.comparison-table tr > :last-child { border-right: 0; }
.comparison-table tbody tr:last-child > * { border-bottom: 0; }
.comparison-table th { background: var(--surface-tint); color: var(--ink); }
.table-scroll { max-width: 100%; overflow-x: auto; }

.breadcrumbs { padding-top: 0.75rem; color: var(--ink-soft); font-size: 0.86rem; }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 0.45rem; margin: 0; padding: 0; list-style: none; }
.breadcrumbs li:not(:last-child)::after { margin-left: 0.45rem; color: #8793a0; content: "/"; }
.breadcrumbs a { color: var(--ink-soft); }

.article-layout { display: grid; gap: 1.5rem; }
.article-body { min-width: 0; }
.article-body > .quick-answer { margin-top: 1.15rem; }
.article-body .content-section { margin-top: var(--article-section-gap); }
.article-body p, .article-body li { max-width: 72ch; }
.article-outline {
  margin-top: clamp(1.4rem, 2.4vw, 2rem);
  padding: 1rem 1.15rem;
  border: 1px solid var(--line-strong);
  border-left: 5px solid var(--catalog-green);
  border-radius: var(--radius-card);
  background: var(--surface-soft);
  box-shadow: var(--shadow-card);
}
.article-outline summary {
  display: flex;
  min-height: 28px;
  align-items: center;
  cursor: pointer;
  color: var(--ink);
  font-size: 0.82rem;
  font-weight: 820;
  letter-spacing: 0.08em;
  list-style: none;
  text-transform: uppercase;
}
.article-outline summary::-webkit-details-marker { display: none; }
.article-outline summary small { margin-left: auto; color: var(--ink-soft); font-size: 0.72rem; font-weight: 720; letter-spacing: 0; text-transform: none; }
.article-outline summary::after { margin-left: 0.7rem; color: var(--catalog-green-dark); content: "+"; font-size: 1.15rem; line-height: 1; }
.article-outline[open] summary::after { content: "−"; }
.article-outline nav { margin-top: 0.8rem; padding-top: 0.8rem; border-top: 1px solid var(--line); }
.article-outline ol { display: grid; gap: 0.45rem 1rem; margin: 0; padding-left: 1.25rem; }
.article-outline li { padding-left: 0.15rem; color: var(--catalog-green-dark); }
.article-outline a { color: var(--catalog-green-dark); font-size: 0.9rem; font-weight: 700; text-decoration: none; }
.article-outline a:hover { text-decoration: underline; }
.article-body h2[id] { scroll-margin-top: 1.25rem; }
.side-note { align-self: start; padding: 1.1rem; border: 1px solid var(--line); border-radius: var(--radius-card); background: var(--surface); box-shadow: var(--shadow-card); }
.side-note h2 { margin: 0 0 0.7rem; font-family: inherit; font-size: 0.78rem; letter-spacing: 0.1em; text-transform: uppercase; }
.side-note p { max-width: 72ch; margin: 0; color: var(--ink-soft); font-size: 0.9rem; }
.related-guides { margin-top: 2rem; padding-top: 1.2rem; border-top: 1px solid var(--line); }
.related-guides h2 { font-size: 1.35rem; }
.related-guides ul { display: grid; grid-template-columns: 1fr; gap: 0.7rem; padding: 0; list-style: none; }
.related-guides a { display: flex; min-height: 54px; align-items: center; justify-content: space-between; gap: 1rem; padding: 0.8rem 1rem; border: 1px solid var(--line); border-radius: var(--radius-control); background: var(--surface); box-shadow: var(--shadow-card); color: var(--ink); font-weight: 720; text-decoration: none; transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease; }
.related-guides a:hover { border-color: var(--catalog-green); box-shadow: var(--shadow-hover); transform: translateY(-1px); }

.faq-list { width: 100%; max-width: none; }
.faq-item { padding: 1.1rem 0; border-top: 1px solid var(--line); }
.faq-item h2 { margin: 0 0 0.65rem; font-size: clamp(1.08rem, 2.1vw, 1.32rem); }
.faq-item p { margin: 0.5rem 0; color: #52605a; }

.closing-panel {
  display: grid;
  gap: 1.1rem;
  padding: clamp(1.35rem, 3vw, 2.2rem);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-card);
  color: var(--ink);
}
.closing-panel h2 { margin: 0; color: var(--ink); font-size: var(--section-title-size); }
.closing-panel p { max-width: 720px; color: var(--ink-soft); }
.closing-panel .external-note { color: var(--ink-soft); }
.closing-panel .button.light { border-color: var(--catalog-green); background: var(--catalog-green); color: #fff; }
.closing-panel .button.light:hover { border-color: var(--catalog-green-dark); background: var(--catalog-green-dark); color: #fff; }
.closing-panel .button.outline-light { border-color: #94cdb5; background: #fff; color: var(--catalog-green-dark); }

.site-footer { padding: 2.5rem 0 1.25rem; border-top: 1px solid var(--line); background: #fff; color: var(--ink); }
.footer-grid { display: grid; gap: 1.75rem; }
.footer-intro { max-width: 520px; }
.footer-brand { display: inline-flex; align-items: center; gap: 0.6rem; color: var(--ink); font-family: inherit; font-size: 1.35rem; font-weight: 700; text-decoration: none; }
.footer-brand .footer-glyph { display: grid; width: 38px; height: 38px; place-items: center; color: var(--catalog-green); }
.footer-glyph svg { width: 100%; height: 100%; fill: currentColor; overflow: visible; }
.site-footer p { color: var(--ink-soft); font-size: 0.9rem; }
.footer-nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.1rem; }
.footer-nav h2 { margin: 0 0 0.6rem; color: var(--ink); font-family: inherit; font-size: 0.76rem; letter-spacing: 0.1em; text-transform: uppercase; }
.footer-nav a { display: block; min-height: 38px; color: var(--catalog-green-dark); font-size: 0.88rem; text-decoration: none; }
.footer-nav a:hover { color: #14583d; text-decoration: underline; }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.5rem 1.5rem; margin-top: 1.75rem; padding-top: 1rem; border-top: 1px solid var(--line); color: var(--ink-soft); font-size: 0.78rem; }

.whatsapp-float {
  position: fixed;
  z-index: 100;
  right: max(18px, env(safe-area-inset-right));
  bottom: max(18px, env(safe-area-inset-bottom));
  display: flex;
  width: 58px;
  height: 58px;
  align-items: center;
  justify-content: center;
  border: 2px solid #267a56;
  border-radius: 50%;
  background: #25d366;
  box-shadow: 0 12px 30px rgba(9, 46, 28, 0.3);
  color: #fff;
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms 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, 0.38);
}
.whatsapp-float img { display: block; width: 32px; height: 32px; }
.whatsapp-label {
  position: absolute;
  top: 50%;
  right: 68px;
  width: max-content;
  max-width: 210px;
  padding: 0.55rem 0.7rem;
  border-radius: 9px;
  background: #17231d;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.2;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-50%);
  transition: opacity 180ms ease, visibility 180ms ease;
}
.whatsapp-float:hover .whatsapp-label, .whatsapp-float:focus-visible .whatsapp-label { opacity: 1; visibility: visible; }

@media (min-width: 620px) {
  .shell { width: min(calc(100% - 3rem), var(--content)); }
  .header-catalog { display: inline-flex; }
  .search-row { grid-template-columns: minmax(0, 1fr) auto; border-radius: 999px; }
  .catalog-search { padding: 0.95rem; }
  .catalog-search input { min-height: 58px; padding-left: 3.15rem; background-position-x: 1.25rem; }
  .catalog-search button { min-width: 168px; min-height: 58px; padding-inline: 1.8rem; }
  .brand small { display: block; }
  .language-menu summary span { display: inline; }
  .language-panel { right: 0; left: auto; }
  .language-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .definition-grid, .method-grid, .example-grid, .risk-grid, .score-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .guide-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .article-outline ol { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 2.75rem; }
  .category-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .catalog-directory-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .brand-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0.95rem 0.8rem; }
  .footer-nav { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 900px) {
  .header-top { min-height: 80px; }
  .mobile-nav { display: none; }
  .desktop-nav { display: flex; flex-wrap: wrap; gap: 0.15rem 1.15rem; align-items: center; min-height: 50px; }
  .language-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .desktop-nav a { position: relative; display: inline-flex; min-height: 42px; align-items: center; color: var(--ink); font-size: 0.86rem; font-weight: 720; text-decoration: none; }
  .desktop-nav a:hover { color: var(--accent-dark); }
  .desktop-nav a[aria-current="page"] { color: var(--catalog-green-dark); }
  .desktop-nav a[aria-current="page"]::after { position: absolute; right: 0; bottom: 0; left: 0; height: 3px; border-radius: 3px 3px 0 0; background: var(--catalog-green); content: ""; }
  .catalog-search-band-inner { grid-template-columns: minmax(210px, 0.52fr) minmax(0, 1.48fr); gap: 1.5rem; padding-block: 1.2rem; }
  .hero-grid { grid-template-columns: minmax(0, 1.7fr) minmax(300px, 0.8fr); align-items: center; }
  .article-hero .hero-grid { grid-template-columns: minmax(0, 1fr); }
  .category-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .catalog-directory-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .directory-card { min-height: 184px; }
  .directory-card .category-icon { width: 4.1rem; height: 4.1rem; margin-bottom: 0.85rem; }
  .method-grid, .guide-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .related-guides ul { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .closing-panel { grid-template-columns: 1.6fr 0.9fr; align-items: center; }
  .footer-grid { grid-template-columns: 1.1fr 1.6fr; align-items: start; }
}

@media (min-width: 1120px) {
  .category-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .catalog-directory-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .brand-grid { grid-template-columns: repeat(8, minmax(0, 1fr)); }
}

@media (max-width: 560px) {
  .catalog-search-band-inner { gap: 0.6rem; padding-block: 0.72rem; }
  .catalog-search-heading h2 { font-size: 1.05rem; }
  .catalog-search-band-form .search-row { grid-template-columns: minmax(0, 1fr) minmax(88px, 36%); }
  .catalog-search-band-form input { min-height: 52px; padding-left: 2.7rem; background-position-x: 0.95rem; font-size: 0.92rem; }
  .catalog-search-band-form button { min-height: 52px; padding: 0.5rem 0.65rem; font-size: 0.78rem; line-height: 1.15; }
  .catalog-search-band-form .form-note { margin: 0.38rem 0 0; font-size: 0.74rem; }
  .hero { padding-block: 2rem 2.4rem; }
  .home-main .hero h1 { font-size: clamp(2.05rem, 9vw, 2.4rem); }
  .localized-hero h1 { font-size: clamp(1.85rem, 8vw, 2.2rem); }
  .article-hero h1 { font-size: clamp(1.7rem, 7.2vw, 2rem); }
  .site-footer { padding-bottom: 5rem; }
  .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; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; }
}

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