:root {
  --paper: #ffffff;
  --paper-deep: #f2f6f6;
  --card: #ffffff;
  --ink: #303633;
  --muted: #66716c;
  --line: #dce7e2;
  --line-strong: #b9dccd;
  --accent: #49bd8a;
  --accent-dark: #18764f;
  --mint-soft: #edf7f2;
  --ink-soft: #4d5954;
  --sage: #ccefe0;
  --shadow-soft: 0 8px 24px rgba(38, 85, 65, .06);
  --shadow: 0 12px 30px rgba(38, 85, 65, .09);
  --shadow-hover: 0 16px 36px rgba(38, 85, 65, .12);
  --radius-sm: 12px;
  --radius: 16px;
  --radius-lg: 20px;
  --radius-pill: 999px;
  --max: 1180px;
  --article: 1180px;
  --reading: 760px;
}

*, *::before, *::after { 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: 1.65;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }

a { color: var(--accent-dark); text-underline-offset: .18em; }
a:hover { color: var(--accent); }

button, input, summary { font: inherit; }

:focus-visible {
  outline: 3px solid #18764f;
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: .75rem;
  left: .75rem;
  transform: translateY(-180%);
  padding: .7rem 1rem;
  border-radius: 10px;
  background: var(--ink);
  color: white;
  font-weight: 800;
}

.skip-link:focus { transform: translateY(0); }

.site-header {
  position: relative;
  z-index: 20;
  border-top: 7px solid var(--accent);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, .97);
  box-shadow: 0 4px 18px rgba(38, 85, 65, .04);
}

.header-inner {
  width: min(var(--max), calc(100% - 2rem));
  min-height: 74px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}

.brand {
  min-height: 44px;
  min-width: max-content;
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  color: var(--ink);
  text-decoration: none;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: block;
  border-radius: 12px;
  color: var(--accent);
  overflow: hidden;
}

.brand-icon { width: 100%; height: 100%; }
.brand-icon path { fill: none; stroke: white; stroke-width: 5; stroke-linecap: round; stroke-linejoin: round; }

.brand-copy { display: grid; line-height: 1.1; }
.brand-copy strong { font-size: 1rem; letter-spacing: -.01em; }
.brand-copy small { margin-top: .28rem; color: var(--muted); font-size: .7rem; letter-spacing: .03em; }

.desktop-nav { display: none; }
.desktop-nav ul, .mobile-nav ul { margin: 0; padding: 0; list-style: none; }

.mobile-nav { position: relative; }
.mobile-nav > summary {
  min-height: 44px;
  display: grid;
  place-items: center;
  padding: .45rem .85rem;
  border: 1px solid var(--accent);
  border-radius: var(--radius-pill);
  cursor: pointer;
  font-size: .84rem;
  font-weight: 800;
  list-style: none;
}
.mobile-nav > summary::-webkit-details-marker { display: none; }
.mobile-nav[open] > summary { background: var(--accent-dark); color: white; }
.mobile-nav nav {
  position: absolute;
  right: 0;
  top: calc(100% + .65rem);
  width: min(310px, calc(100vw - 2rem));
  padding: .55rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow);
}
.mobile-nav a {
  min-height: 44px;
  display: flex;
  align-items: center;
  padding: .58rem .75rem;
  border-radius: var(--radius-sm);
  color: var(--ink);
  text-decoration: none;
  font-weight: 750;
  transition: background-color .18s ease, color .18s ease;
}
.mobile-nav a:hover { background: var(--paper-deep); }
.mobile-nav a[aria-current="page"] { background: #e6f5ee; color: var(--accent-dark); }

h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.12; letter-spacing: -.035em; }
h2 { font-size: clamp(1.45rem, 3vw, 1.85rem); }
h3 { font-size: 1.12rem; }
p:last-child { margin-bottom: 0; }

.eyebrow {
  margin-bottom: .75rem;
  color: var(--accent-dark);
  font-size: .72rem;
  font-weight: 900;
  letter-spacing: .13em;
  line-height: 1.2;
  text-transform: uppercase;
}

.text-link, .section-link, .card-link {
  display: inline-flex;
  align-items: baseline;
  gap: .3rem;
  font-weight: 800;
}
.external-arrow { margin-left: .15rem; font-size: .85em; }

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  align-items: center;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  padding: .7rem 1rem;
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  color: var(--ink);
  font-size: .92rem;
  font-weight: 850;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition: transform .18s ease, background-color .18s ease, border-color .18s ease, box-shadow .18s ease, color .18s ease;
}
.button:hover { transform: translateY(-1px); color: var(--ink); }
.button-primary { background: var(--accent-dark); color: white; box-shadow: none; }
.button-primary:hover { background: #0f5f3e; color: white; }
.button-secondary { background: var(--card); }
.button-quiet { border-color: transparent; text-decoration: underline; }
.button-light { background: transparent; border-color: rgba(255,255,255,.7); color: white; }
.button-light:hover { color: white; border-color: white; }

.home-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}
.hero-search-strip {
  position: relative;
  width: min(var(--max), calc(100% - 2rem));
  margin: 0 auto 1.75rem;
  padding-top: 1.05rem;
  display: grid;
  gap: 1rem;
  border-top: 1px solid var(--line);
}
.hero-grid {
  position: relative;
  width: min(var(--max), calc(100% - 2rem));
  margin: 0 auto;
  padding: 2.2rem 0 1.85rem;
  display: grid;
  gap: 1.7rem;
}
.hero-copy h1 {
  max-width: 880px;
  margin-bottom: 1.25rem;
  font-size: clamp(2.15rem, 7vw, 3.1rem);
  font-weight: 760;
  letter-spacing: -.05em;
}
.hero-dek { max-width: 740px; color: #4d5954; font-size: clamp(1.05rem, 2vw, 1.3rem); }
.trust-line {
  max-width: 760px;
  margin: 1.1rem 0;
  padding: 1rem 0 1rem 1.05rem;
  border-left: 4px solid var(--accent);
  font-size: .9rem;
  font-weight: 700;
}
.external-note, .form-note, .small { color: var(--muted); font-size: .82rem; }
.hero-copy > .external-note { margin-top: .9rem; }

.research-board {
  align-self: start;
  padding: 1.2rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow-soft);
}
.board-heading {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: .9rem;
  border-bottom: 1px dashed var(--line);
  font-size: .78rem;
}
.board-heading span { color: var(--accent-dark); font-weight: 900; text-transform: uppercase; }
.research-board ol { margin: 0; padding: .5rem 0; list-style: none; }
.research-board li { display: grid; grid-template-columns: 74px 1fr; gap: .75rem; padding: .85rem 0; border-bottom: 1px solid var(--paper-deep); }
.research-board li span { color: var(--accent-dark); font-size: .7rem; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.research-board li b { font-size: .9rem; line-height: 1.35; }
.research-board > p { margin-top: .75rem; font-size: 1.02rem; font-weight: 650; }

.home-content { width: min(var(--max), calc(100% - 2rem)); margin: 0 auto; padding: 1.8rem 0 2.6rem; }

.quick-answer {
  position: relative;
  max-width: var(--article);
  margin: 0 auto 1.8rem;
  padding: 1.2rem 1.25rem 1.3rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow-soft);
}
.quick-answer h2 { margin-bottom: .65rem; font-size: 1.3rem; }
.quick-answer p:last-child { font-size: 1.04rem; }
.home-content > .quick-answer { max-width: none; }
.home-content > .quick-answer p { max-width: var(--reading); }

.content-section {
  margin: 0 auto;
  padding: 1.75rem 0;
  border-top: 1px solid var(--line);
}
.content-section[id] { scroll-margin-top: 100px; }
.content-section > h2, .content-section > .eyebrow, .content-section > p, .content-section > .note { max-width: var(--reading); }
.content-section > h2 { margin-bottom: 1rem; }
.content-section > p { color: #4d5954; }

.definition-grid, .card-grid, .guide-grid, .category-grid, .score-grid { display: grid; gap: 1rem; }
.definition-grid { margin-top: 1rem; counter-reset: item; }
.definition-grid article {
  position: relative;
  min-height: 210px;
  padding: 1.2rem;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--card);
}
.definition-grid article > span { position: absolute; top: .8rem; right: 1rem; color: #77827d; font-size: 3.3rem; font-weight: 800; line-height: 1; }
.definition-grid h3 { margin-top: 3.5rem; margin-bottom: .6rem; }
.definition-grid p { color: var(--muted); font-size: .9rem; }

.steps { max-width: 900px; margin: 1rem 0 0; padding: 0; list-style: none; }
.steps li { display: grid; grid-template-columns: 48px 1fr; gap: 1rem; padding: .95rem 0; border-bottom: 1px solid var(--line); }
.step-number { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 50%; background: var(--accent-dark); color: white; font-size: .72rem; font-weight: 900; }
.steps h3 { margin-bottom: .4rem; }
.steps p { margin: 0; color: var(--muted); }

.search-intro { max-width: 520px; }
.catalog-search {
  padding: 1.15rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--mint-soft);
  color: var(--ink);
}
.search-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  margin-bottom: .72rem;
}
.search-label-row label { font-weight: 850; }
.search-label-row > span {
  color: #247854;
  font-size: .72rem;
  font-weight: 850;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.search-pill {
  min-height: 56px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 44px auto;
  align-items: stretch;
  overflow: hidden;
  border: 1.5px solid #49bd8a;
  border-radius: var(--radius-pill);
  background: white;
  box-shadow: var(--shadow-soft);
}
.search-pill:focus-within {
  outline: 0;
  box-shadow: var(--shadow-soft);
}
.search-pill input {
  width: 100%;
  min-width: 0;
  min-height: 54px;
  padding: .75rem .4rem .75rem 1.2rem;
  border: 0;
  background: transparent;
  color: var(--ink);
  outline: 0;
}
.search-pill input::placeholder { color: #7c8882; }
.search-icon {
  display: grid;
  place-items: center;
  color: #66756e;
}
.search-icon svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-linecap: round; stroke-width: 1.8; }
.search-pill button {
  min-width: 118px;
  min-height: 54px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .35rem;
  padding: .75rem 1.25rem;
  border: 0;
  border-radius: 0;
  background: var(--accent-dark);
  color: white;
  cursor: pointer;
  font-weight: 900;
}
.search-pill button:hover { background: #0f5f3e; }
.search-pill input:focus-visible { outline: 0; }
.search-pill button:focus-visible { outline: 3px solid #fff; outline-offset: -5px; }
.catalog-search .form-note { margin-top: .72rem; color: #4f665b; }

.section-heading { display: flex; flex-direction: column; gap: .5rem; margin-bottom: .8rem; }
.section-heading h2 { margin-bottom: 0; }
.section-link { min-height: 44px; align-items: center; }
.category-directory-heading > div {
  padding-left: 1rem;
  border-left: 4px solid var(--accent);
}
.category-directory-heading .eyebrow { margin-bottom: .4rem; }

.category-grid { margin-top: .85rem; }
.category-card {
  position: relative;
  min-width: 0;
  padding: 1.15rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow-soft);
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.category-card:hover { transform: translateY(-2px); border-color: var(--accent); box-shadow: var(--shadow-hover); }
.category-card-compact {
  min-height: 260px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.35rem 1rem;
  color: var(--ink);
  text-align: center;
  text-decoration: none;
}
.category-icon {
  width: 68px;
  height: 68px;
  display: grid;
  place-items: center;
  margin-bottom: 1.2rem;
  color: var(--ink);
}
.category-icon svg {
  width: 58px;
  height: 58px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.35;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.category-card-compact h3 { margin-bottom: .55rem; font-size: 1.1rem; }
.category-tag {
  min-height: 24px;
  margin-bottom: 1rem;
  color: var(--accent-dark);
  font-size: .67rem;
  font-weight: 900;
  letter-spacing: .15em;
  text-transform: uppercase;
}
.category-tag-quiet { color: #66716c; }
.category-cta {
  margin-top: auto;
  color: var(--accent-dark);
  font-size: .78rem;
  font-weight: 850;
}
.category-card-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; }
.category-card-detailed .category-icon { width: 54px; height: 54px; margin: 0 0 1.2rem; }
.category-card-detailed .category-icon svg { width: 48px; height: 48px; }
.category-index { color: var(--accent-dark); font-size: .68rem; font-weight: 900; letter-spacing: .12em; }
.category-card h3 { margin-bottom: .8rem; }
.category-card p { margin-bottom: .65rem; color: var(--muted); font-size: .85rem; }
.category-card strong { color: var(--ink); }
.category-card .card-link { min-height: 44px; margin-top: .5rem; align-items: center; font-size: .85rem; }
.section-after { margin-top: .85rem; }
.section-after .text-link { min-height: 44px; align-items: center; }

.brand-directory > p { max-width: 820px; }
.brand-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.05rem .85rem;
  margin-top: .85rem;
}
.brand-directory-card {
  min-width: 0;
  min-height: 188px;
  display: grid;
  grid-template-rows: 1fr auto;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--card);
  color: var(--ink);
  text-decoration: none;
  box-shadow: var(--shadow-soft);
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.brand-directory-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  color: var(--ink);
  box-shadow: var(--shadow-hover);
}
.brand-mark-tile {
  min-height: 136px;
  display: grid;
  place-items: center;
  background: var(--card);
}
.brand-logo { width: min(148px, 78%); height: 70px; object-fit: contain; filter: grayscale(1); }
.brand-wordmark { color: var(--ink); font-size: 1.35rem; font-weight: 950; letter-spacing: .06em; line-height: 1; }
.brand-card-copy {
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
  padding: .65rem .75rem;
  border-top: 1px solid var(--line);
  font-size: .82rem;
}
.brand-card-copy strong { min-width: 0; overflow-wrap: anywhere; }
.brand-card-copy > span { color: var(--accent-dark); font-weight: 900; }
.brand-disclaimer {
  max-width: 880px;
  margin-top: .9rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--card);
}
.brand-disclaimer strong { display: block; margin-bottom: .25rem; }
.brand-disclaimer p { color: var(--muted); font-size: .86rem; }

.message-template {
  margin: 1rem 0;
  padding: 1.25rem 1.35rem;
  border: 1px solid var(--line-strong);
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--card);
  box-shadow: var(--shadow-soft);
}

.message-template p + p,
.message-template ol + p { margin-top: 1rem; }

.message-template ol {
  margin: .9rem 0 0 1.25rem;
  color: var(--ink-soft);
}

.message-template li + li { margin-top: .45rem; }

.info-card {
  padding: 1.2rem;
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--card);
}
.info-card h3 { margin-bottom: .55rem; }
.info-card p { color: var(--muted); font-size: .92rem; }

.table-wrap { max-width: 100%; margin: 1.2rem 0; overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); }
table { width: 100%; min-width: 680px; border-collapse: collapse; font-size: .9rem; }
th, td { padding: .85rem; border-bottom: 1px solid var(--paper-deep); text-align: left; vertical-align: top; }
thead th { background: #e9f5ef; color: var(--ink); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; }
tbody th { color: var(--accent-dark); }

.note { max-width: var(--reading); margin: 1.2rem 0; padding: 1.05rem 1.1rem; border: 1px solid var(--line-strong); border-radius: var(--radius-sm); background: var(--card); box-shadow: var(--shadow-soft); }
.note strong { display: block; margin-bottom: .25rem; }
.note p { color: var(--muted); }
.note-red { background: var(--card); box-shadow: none; border-color: #d8aaa0; }

.check-list { max-width: 820px; margin: .85rem 0 0; padding: 0; list-style: none; }
.check-list li { position: relative; padding: .8rem .8rem .8rem 2.6rem; border-bottom: 1px solid var(--line); }
.check-list li::before { content: "✓"; position: absolute; left: .35rem; top: .72rem; width: 1.45rem; height: 1.45rem; display: grid; place-items: center; border-radius: 50%; background: var(--sage); color: var(--ink); font-weight: 900; }

.guide-grid { margin-top: .85rem; }
.guide-grid > a {
  position: relative;
  min-height: 190px;
  display: block;
  padding: 1.15rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  color: var(--ink);
  text-decoration: none;
  box-shadow: var(--shadow-soft);
  transition: transform .18s ease, border-color .18s ease, background-color .18s ease, box-shadow .18s ease;
}
.guide-grid > a:hover { transform: translateY(-2px); border-color: var(--accent); background: #f3faf7; box-shadow: var(--shadow-hover); color: var(--ink); }
.guide-grid h3 { margin-top: 2.6rem; margin-bottom: .55rem; }
.guide-grid p { color: var(--muted); font-size: .88rem; }
.guide-grid > a:hover p { color: var(--muted); }
.guide-arrow { position: absolute; top: .9rem; right: 1rem; color: var(--accent); font-size: 1.4rem; }

.closing-panel {
  margin-top: 1.65rem;
  padding: 1.4rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: var(--card);
  color: var(--ink);
  box-shadow: var(--shadow-soft);
}
.closing-panel p:not(.eyebrow) { color: var(--ink-soft); }
.closing-panel .eyebrow { color: var(--accent-dark); }
.closing-panel .button-row { margin-top: 1.15rem; }
.closing-panel .button-primary { border-color: var(--accent-dark); background: var(--accent-dark); color: white; }
.closing-panel .button-primary:hover { border-color: #0f5f3e; background: #0f5f3e; color: white; }
.closing-panel .button-light { border-color: var(--accent); background: var(--card); color: var(--ink); }
.closing-panel .button-light:hover { border-color: var(--accent-dark); background: var(--card); color: var(--accent-dark); }

.breadcrumbs {
  width: min(var(--article), calc(100% - 2rem));
  margin: .85rem auto 0;
}
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: .4rem; margin: 0; padding: 0; list-style: none; color: var(--muted); font-size: .78rem; }
.breadcrumbs li + li::before { content: "/"; margin-right: .4rem; color: var(--line); }

.article-hero {
  width: min(var(--article), calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.8rem 0 1.5rem;
}
.article-hero h1 { max-width: 860px; margin-bottom: 1rem; font-size: clamp(1.7rem, 3.3vw, 2.4rem); font-weight: 760; }
.article-hero > p:last-child { max-width: 720px; color: #4d5954; font-size: 1.12rem; }
.article-meta {
  width: min(var(--article), calc(100% - 2rem));
  margin: -.75rem auto 0;
  padding: .5rem 0 .8rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .15rem .55rem;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: .84rem;
}
.article-meta a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  font-weight: 750;
}
.article-content {
  width: min(var(--article), calc(100% - 2rem));
  margin: 0 auto;
  padding-bottom: 2.5rem;
}
.article-content > .quick-answer { margin-top: 0; }
.article-content > .quick-answer p { max-width: var(--reading); }
.article-content .content-section { width: 100%; max-width: none; }

.comparison-grid { display: grid; gap: 1rem; margin: 1.2rem 0; }
.comparison-grid article { padding: 1.2rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); }
.comparison-grid ul { margin: .8rem 0 0; padding-left: 1.1rem; }
.comparison-grid li { margin: .4rem 0; }
.compare-good { border-color: var(--line-strong) !important; box-shadow: var(--shadow-soft); }
.compare-weak { border-color: #e2c4bc !important; box-shadow: none; }

.term-list { margin: 1.2rem 0; }
.term-list div { display: grid; gap: .25rem; padding: .85rem 0; border-bottom: 1px solid var(--line); }
.term-list dt { font-weight: 900; color: var(--accent-dark); }
.term-list dd { margin: 0; color: var(--muted); }

.plain-list { max-width: 760px; padding-left: 1.25rem; }
.plain-list li { margin: .65rem 0; }

.sample-record { margin: 1.2rem 0; padding: 1.2rem; border: 1px solid var(--line-strong); border-radius: var(--radius); background: var(--card); box-shadow: var(--shadow-soft); }
.sample-record dl { margin: 0; }
.sample-record dl div { display: grid; gap: .2rem; padding: .65rem 0; border-bottom: 1px dashed var(--line); }
.sample-record dt { font-weight: 900; }
.sample-record dd { margin: 0; color: var(--muted); }

.link-flow { display: grid; gap: .7rem; margin: 1.2rem 0; }
.link-flow > div { padding: 1rem; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--card); }
.link-flow span { color: var(--accent-dark); font-size: .7rem; font-weight: 900; }
.link-flow strong, .link-flow small { display: block; }
.link-flow small { margin-top: .25rem; color: var(--muted); }
.link-flow i { display: none; }

.worksheet { max-width: 820px; margin: 1.2rem 0; padding: 0; list-style: none; }
.worksheet li { min-height: 60px; display: grid; grid-template-columns: 26px 1fr; gap: .8rem; align-items: start; padding: .85rem .4rem; border-bottom: 1px solid var(--line); }
.worksheet .box { width: 23px; height: 23px; margin-top: .15rem; border: 2px solid var(--accent-dark); border-radius: 4px; background: var(--card); }
.worksheet b { display: inline-grid; width: 1.65rem; height: 1.65rem; margin-right: .5rem; place-items: center; border-radius: 50%; background: var(--paper-deep); font-size: .72rem; }

.score-grid { margin: 1.2rem 0; }
.score-grid article { padding: 1.1rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); }
.score-grid strong { display: block; color: var(--accent-dark); font-size: 2.2rem; }
.score-grid h3 { margin: .3rem 0; }
.score-grid p { color: var(--muted); font-size: .88rem; }

.faq-list { width: 100%; max-width: none; margin: 0 auto; border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { min-height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1rem 0; cursor: pointer; color: var(--ink); font-weight: 850; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span:last-child { color: var(--accent); font-size: 1.4rem; }
.faq-list details[open] summary span:last-child { transform: rotate(45deg); }
.faq-list details > div { max-width: 760px; padding: 0 0 1.25rem; color: var(--muted); }

.related {
  max-width: var(--article);
  margin: 1.7rem auto 0;
  padding: 1.3rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: var(--card);
}
.related h2 { font-size: 1.35rem; }
.related-links { display: grid; gap: .5rem; }
.related-links a { min-height: 48px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .65rem .75rem; border-radius: var(--radius-sm); background: var(--card); color: var(--ink); font-size: .9rem; font-weight: 800; text-decoration: none; transition: background-color .18s ease, color .18s ease, transform .18s ease; }
.related-links a:hover { background: #e6f5ee; color: var(--accent-dark); }

.error-page {
  width: min(720px, calc(100% - 2rem));
  min-height: 55vh;
  margin: 0 auto;
  padding: 7rem 0;
}
.error-page h1 { margin-bottom: 1rem; font-size: clamp(2.5rem, 9vw, 5rem); }
.error-page .button-row { margin-top: 1.5rem; }

.site-footer { border-top: 1px solid var(--line); background: var(--card); color: var(--ink); }
.footer-inner { width: min(var(--max), calc(100% - 2rem)); margin: 0 auto; padding: 1.7rem 0; display: grid; gap: 1.35rem; }
.footer-statement { max-width: 540px; }
.footer-brand { display: inline-block; margin-bottom: 1rem; color: var(--accent-dark); font-size: 1.65rem; font-weight: 800; text-decoration: none; }
.footer-statement p { color: #4d5954; }
.footer-statement .small { color: var(--muted); }
.footer-nav { display: grid; gap: 1.4rem; }
.footer-group h2 { margin-bottom: .65rem; color: var(--ink); font-size: .82rem; letter-spacing: .08em; text-transform: uppercase; }
.site-footer ul { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: .2rem .8rem; margin: 0; padding: 0; list-style: none; }
.site-footer li { min-width: 0; }
.site-footer nav a { min-height: 44px; display: flex; align-items: center; color: #4d5954; font-size: .875rem; text-decoration: none; }
.site-footer nav a:hover { color: var(--accent-dark); text-decoration: underline; }
.footer-bottom { width: min(var(--max), calc(100% - 2rem)); margin: 0 auto; padding: .8rem 0 1.1rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .74rem; }
.footer-bottom p { margin: .25rem 0; }

#whatsapp-float {
  position: fixed;
  right: max(18px, env(safe-area-inset-right));
  bottom: max(18px, env(safe-area-inset-bottom));
  z-index: 1000;
  width: 58px;
  height: 58px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  text-decoration: none;
  box-shadow: 0 12px 30px rgba(9, 46, 28, .3);
  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);
  outline: 3px solid var(--accent-dark);
  outline-offset: 3px;
}

#whatsapp-float svg { width: 32px; height: 32px; }
#whatsapp-float path { fill: currentColor; }

.whatsapp-float-label {
  position: absolute;
  top: 50%;
  right: 68px;
  width: max-content;
  max-width: 210px;
  padding: .55rem .7rem;
  border-radius: 9px;
  background: #17231d;
  color: #fff;
  font: 600 13px/1.2 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .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 (min-width: 620px) {
  .definition-grid, .card-grid, .category-grid, .guide-grid, .score-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .brand-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
  .section-heading { flex-direction: row; align-items: end; justify-content: space-between; }
  .comparison-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .term-list div, .sample-record dl div { grid-template-columns: 150px 1fr; }
  .link-flow { grid-template-columns: 1fr auto 1fr auto 1fr; align-items: center; }
  .link-flow i { display: block; color: var(--accent); font-style: normal; font-size: 1.4rem; }
  .related-links { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .closing-panel { padding: 2rem; }
  .footer-nav { grid-template-columns: repeat(3, minmax(0,1fr)); }
  .site-footer ul { grid-template-columns: 1fr; }
  .footer-bottom { display: flex; justify-content: space-between; gap: 1rem; }
}

@media (min-width: 900px) {
  .site-header { position: sticky; top: 0; backdrop-filter: blur(12px); }
  .mobile-nav { display: none; }
  .desktop-nav { display: block; min-width: 0; overflow-x: auto; }
  .desktop-nav ul { display: flex; align-items: center; gap: .15rem; }
  .desktop-nav a { min-height: 44px; display: inline-flex; align-items: center; padding: .45rem .62rem; border-radius: var(--radius-sm); color: var(--ink); font-size: .8rem; font-weight: 800; text-decoration: none; white-space: nowrap; transition: background-color .18s ease, color .18s ease; }
  .desktop-nav a:hover { background: var(--paper-deep); }
  .desktop-nav a[aria-current="page"] { background: #e6f5ee; color: var(--accent-dark); }
  .hero-grid { min-height: 540px; grid-template-columns: minmax(0,1.55fr) minmax(330px,.72fr); align-items: center; padding: 2.4rem 0; }
  .hero-copy h1 { font-size: clamp(2.55rem, 3.4vw, 3rem); }
  .research-board { margin-top: 1rem; }
  .hero-search-strip { grid-template-columns: minmax(0,.8fr) minmax(460px,1.2fr); align-items: start; }
  .definition-grid { grid-template-columns: repeat(4, minmax(0,1fr)); }
  .category-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
  .category-grid-compact { grid-template-columns: repeat(4, minmax(0,1fr)); }
  .brand-grid { grid-template-columns: repeat(5, minmax(0,1fr)); }
  .guide-grid { grid-template-columns: repeat(4, minmax(0,1fr)); }
  .score-grid { grid-template-columns: repeat(4, minmax(0,1fr)); }
  .closing-panel { display: grid; grid-template-columns: minmax(0,1fr) auto; align-items: end; gap: 2rem; padding: 2.5rem; }
  .closing-panel .button-row { justify-content: flex-end; }
  .footer-inner { grid-template-columns: minmax(340px,.9fr) minmax(0,1.25fr); }
  .site-footer ul { grid-template-columns: 1fr; }
}

@media (min-width: 1180px) {
  .category-grid { grid-template-columns: repeat(4, minmax(0,1fr)); }
  .category-grid-compact { grid-template-columns: repeat(5, minmax(0,1fr)); }
  .brand-grid { grid-template-columns: repeat(8, minmax(0,1fr)); }
}

@media (max-width: 410px) {
  .header-inner, .hero-grid, .hero-search-strip, .home-content, .article-content, .article-meta, .breadcrumbs, .article-hero, .footer-inner, .footer-bottom { width: min(100% - 1.25rem, var(--max)); }
  .brand-copy small { display: none; }
  .button-row .button { width: 100%; }
  .hero-copy h1 { font-size: clamp(1.9rem, 8vw, 2.1rem); }
  .research-board { transform: none; }
  .search-label-row { align-items: flex-start; }
  .search-label-row > span { padding-top: .2rem; text-align: right; }
  .search-pill { grid-template-columns: minmax(0, 1fr) 36px 92px; }
  .search-pill input { padding-left: 1rem; font-size: .9rem; }
  .search-pill button { min-width: 92px; padding-inline: .8rem; }
  .search-button-wide { display: none; }
}

@media (max-width: 600px) {
  #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 {
  .site-header, .site-footer, .breadcrumbs, .related, .button-row, #whatsapp-float { display: none !important; }
  body { background: white; color: black; font-size: 11pt; }
  .article-hero, .article-content { width: 100%; }
  .article-hero { padding: 0 0 1rem; }
  .content-section { break-inside: avoid; padding: 1rem 0; }
  .quick-answer, .note, .worksheet .box { box-shadow: none; background: white; }
}