@font-face {
  font-family: "Atkinson Hyperlegible";
  src: url("fonts/AtkinsonHyperlegible-Regular.otf") format("opentype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Atkinson Hyperlegible";
  src: url("fonts/AtkinsonHyperlegible-Bold.otf") format("opentype");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --ink: #234d52;
  --muted: #566e72;
  --paper: #f9fcfb;
  --surface: #ffffff;
  --line: #d9e9e6;
  --canvas: #f1f7f5;
  --blue: #23686e;
  --blue-dark: #184f55;
  --blue-soft: #d9eeeb;
  --green: var(--blue);
  --green-soft: var(--blue-soft);
  --yellow: #ecc66c;
  --yellow-soft: #f6edce;
  --coral: #a34831;
  --coral-soft: #f8e1d5;
  --violet: #665086;
  --violet-soft: #eee7f4;
  --navy-950: #122139;
  --navy-900: #172b49;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shell: 1240px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 105px; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "Avenir Next", "Segoe UI", Arial, sans-serif; font-size: 18px; line-height: 1.55; font-synthesis: none; -webkit-font-smoothing: antialiased; }
img, svg { display: block; max-width: 100%; }
img { height: auto; }
figure { margin: 0; }
button, input, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
a { color: var(--blue-dark); text-underline-offset: .22em; }
a:hover { text-decoration-thickness: 2px; }
p { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }
h1, h2, h3, h4 { margin: 0 0 .65em; color: var(--ink); line-height: 1.12; }
h1, h2 { font-family: Georgia, "Times New Roman", serif; font-weight: 400; letter-spacing: -.035em; text-wrap: balance; }
h1 { font-size: clamp(2.65rem, 5.1vw, 4.5rem); max-width: 1000px; }
h2 { font-size: clamp(2rem, 3.4vw, 3.2rem); }
h3 { font-size: 1.35rem; font-weight: 700; letter-spacing: -.018em; }
h4 { font-size: 1.06rem; }
h1 em { color: var(--blue); font-style: normal; font-weight: inherit; }
code { font-size: .85em; overflow-wrap: anywhere; }
[hidden] { display: none !important; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 5px; }
.section--ink :focus-visible, .section--blue :focus-visible, .callout--blue :focus-visible { outline-color: var(--yellow); }
.shell { width: min(calc(100% - 80px), var(--shell)); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 100; top: 12px; left: 12px; padding: 12px 20px; color: white; background: var(--ink); transform: translateY(-180%); }
.skip-link:focus { transform: none; }

.site-header { position: sticky; top: 0; z-index: 50; background: var(--paper); border-bottom: 1px solid var(--line); }
.header-inner { display: flex; min-height: 74px; justify-content: space-between; align-items: center; gap: 30px; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--ink); text-decoration: none; flex-shrink: 0; }
.brand img { width: 36px; height: 36px; }
.brand-copy { display: grid; }
.brand-copy strong { font-size: 1.7rem; line-height: 1; letter-spacing: -.065em; font-weight: 700; }
.brand-copy small { color: var(--muted); font-size: .69rem; margin-top: 6px; }
.site-nav { display: flex; gap: 8px; align-items: center; }
.site-nav a { padding: 12px 14px; font-size: .9rem; color: var(--ink); text-decoration: none; border-radius: 6px; }
.site-nav a:hover, .site-nav a[aria-current] { background: var(--green-soft); }
.site-nav .nav-cta { margin-left: 8px; color: var(--blue-dark); }
.site-nav .nav-cta:hover, .site-nav .nav-cta[aria-current] { color: var(--blue-dark); background: var(--blue-soft); }
.nav-toggle { display: none; width: 48px; height: 48px; color: var(--ink); border: 1px solid var(--line); border-radius: 8px; background: transparent; padding: 12px; }
.nav-toggle span:not(.sr-only) { height: 2px; display: block; margin: 5px 0; background: currentColor; }

.eyebrow { margin: 0 0 22px; color: var(--green); font-size: .75rem; line-height: 1.4; font-weight: 700; text-transform: uppercase; letter-spacing: .13em; }
.lead { max-width: 740px; color: var(--muted); font-size: clamp(1.1rem, 1.65vw, 1.3rem); line-height: 1.55; }
.fine-print, .preview-note { font-size: .85rem; color: var(--muted); }
.hero, .product-hero { padding: clamp(60px, 7.5vw, 105px) 0; }
.hero-grid, .product-hero-grid { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: clamp(40px, 6vw, 90px); }
.hero h1 { font-size: clamp(2.85rem, 5.3vw, 4.8rem); }
.hero .lead { max-width: 540px; }
.hero-actions, .action-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 30px 0 0; }
.button { display: inline-flex; min-height: 50px; justify-content: center; align-items: center; gap: 16px; padding: 13px 24px; border: 1px solid var(--blue); border-radius: 999px; background: var(--blue); color: white; text-decoration: none; font-weight: 400; font-size: 1rem; line-height: 1.35; transition: background .16s, border-color .16s; }
.button:hover { background: var(--blue-dark); border-color: var(--blue-dark); color: white; }
.button--secondary { background: transparent; color: var(--ink); border-color: #aeb9cb; }
.button--secondary:hover { background: var(--green-soft); color: var(--ink); border-color: var(--ink); }
.button--light { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.button--light:hover { background: var(--yellow-soft); color: var(--ink); border-color: var(--yellow-soft); }
.button--pending { background: var(--line); color: var(--muted); border-color: var(--line); cursor: default; }
.text-link { display: inline-flex; gap: 12px; color: var(--blue-dark); font-weight: 400; text-decoration-thickness: 1px; }
.section-link { margin-top: 36px; }
.status-line { margin: 24px 0 0; font-size: .84rem; color: var(--muted); }
.status-dot { display: inline-block; width: 8px; height: 8px; margin-right: 6px; border-radius: 50%; background: var(--green); }
.hero-vocabulary { background: #e9e8f1; padding: 24px; border-radius: 22px; }
.hero-vocabulary__intro { display: flex; justify-content: space-between; gap: 12px; margin: 0 0 18px; font-size: .77rem; color: #595270; }
.hero-vocabulary__intro span:first-child { color: var(--ink); font-weight: 700; }
.hero-vocabulary .text-link { display: flex; justify-content: space-between; font-size: .9rem; margin-top: 18px; }
.proof-strip { padding: 24px 0; border-block: 1px solid var(--line); }
.proof-list { display: grid; grid-template-columns: repeat(3, 1fr); list-style: none; gap: 24px; padding: 0; margin-block: 0; font-size: .96rem; }
.proof-list li { text-align: center; }
.proof-list li + li { border-left: 1px solid var(--line); }
.proof-list strong { font-weight: 700; }
.proof-list--four { grid-template-columns: repeat(4, 1fr); }

.section { padding: clamp(64px, 7vw, 100px) 0; }
.section--white { background: var(--surface); }
.section--ink, .section--blue { background: var(--ink); color: var(--paper); }
.section--ink h2, .section--blue h2 { color: var(--paper); }
.section--ink .light-heading { color: var(--paper); }
.section--ink .button--secondary, .section--blue .button--secondary { color: var(--paper); border-color: #9fb1cf; }
.section--ink .button--secondary:hover, .section--blue .button--secondary:hover { color: var(--ink); }
.section--ink .lead, .section--blue .lead { color: #c6d2e5; }
.section--ink .eyebrow, .section--blue .eyebrow { color: #b9cef8; }
.section-heading { max-width: 830px; margin-bottom: 42px; }
.section-heading--row { max-width: none; display: grid; grid-template-columns: 1.1fr 1fr; gap: 80px; align-items: end; }
.section-heading--row h2, .section-heading--row .lead { margin-bottom: 0; }
.section-heading--spaced { margin-top: 60px; }
.split, .online-boundary { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 7vw, 100px); align-items: start; }
.principle-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.principle-grid article { padding: 26px 0 0; border-top: 1px solid var(--line); }
.principle-grid h3 { max-width: 290px; }
.principle-grid p { color: var(--muted); }
.chapter-number { display: block; font-size: .78rem; color: var(--muted); letter-spacing: .07em; margin-bottom: 30px; }
.library-feature { background: var(--paper); }
.collection-panel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-md); padding: 30px; }
.collection-panel__heading { display: flex; justify-content: space-between; gap: 16px; align-items: center; margin-bottom: 22px; }
.collection-panel__heading h3 { font-size: 1.15rem; margin: 0; }
.collection-panel__heading > span { color: var(--muted); font-size: .8rem; }
.size-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 24px; }
.size-grid a { display: grid; gap: 4px; padding: 24px 16px; background: var(--yellow-soft); border-radius: 10px; text-decoration: none; color: var(--ink); border: 1px solid transparent; }
.size-grid a:hover { border-color: var(--ink); }
.size-grid a:nth-child(2) { background: var(--green-soft); }
.size-grid a:nth-child(3) { background: var(--coral-soft); }
.size-grid a:nth-child(4) { background: var(--violet-soft); }
.size-grid strong { font-family: inherit; font-size: 2.2rem; font-weight: 700; }
.size-grid span, .collection-panel > p { font-size: .87rem; }
.ecosystem-list { border-top: 1px solid #465c7d; }
.ecosystem-list > a { display: grid; grid-template-columns: 40px 1fr auto 28px; gap: 24px; align-items: center; padding: 28px 0; border-bottom: 1px solid #465c7d; color: var(--paper); text-decoration: none; }
.ecosystem-list > a:hover h3 { text-decoration: underline; text-underline-offset: 5px; }
.ecosystem-list .chapter-number { margin: 0; color: #b1c3e0; }
.ecosystem-list h3 { color: var(--paper); margin: 0 0 7px; font-size: 1.65rem; }
.ecosystem-list p { color: #c6d2e5; margin: 0; font-size: .97rem; }
.ecosystem-note { max-width: 740px; color: #c6d2e5; font-size: .95rem; margin-top: 30px; }
.faq-list details, .preview-details { border-bottom: 1px solid var(--line); padding: 22px 0; }
.faq-list details:first-child { border-top: 1px solid var(--line); }
summary { cursor: pointer; font-weight: 700; font-size: 1.12rem; padding: 6px 2px; }
details[open] summary { margin-bottom: 18px; }
.faq-list p, .faq-list a { font-size: 1rem; }
.faq-list p { color: var(--muted); }
.page-hero { padding: 58px 0 65px; border-bottom: 1px solid var(--line); }
.page-hero .lead { max-width: 820px; }
.library-hero h1 { font-size: clamp(2.45rem, 4vw, 3.5rem); }
.library-catalog-section { padding-top: 48px; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 9px; color: var(--muted); font-size: .82rem; margin-bottom: 35px; }
.breadcrumb a { color: inherit; }
.breadcrumb span::before, .breadcrumb a + a::before { content: "/"; margin-right: 9px; }
.page-anchor-nav { display: flex; flex-wrap: wrap; gap: 22px; border-top: 1px solid var(--line); padding-top: 22px; margin-top: 32px; font-size: .95rem; }
.product-intro { max-width: 850px; }
.product-intro h1 { max-width: 850px; }
.availability-note { padding: 18px 22px; margin: 30px 0 0; background: var(--yellow-soft); border-left: 3px solid #b18a37; font-size: .96rem; }

.card-grid, .app-feature-grid, .development-grid, .ecosystem-grid, .package-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.card, .app-feature-card, .development-card, .ecosystem-card, .package-card, .role-card, .research-card { min-width: 0; padding: 28px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-md); color: var(--ink); }
.card p, .app-feature-card p, .development-card p, .ecosystem-card p { color: var(--muted); }
.card-icon { font-size: 1.2rem; color: var(--green); margin-bottom: 20px; }
.tag, .feature-kicker { display: inline-flex; align-items: center; padding: 5px 9px; border-radius: 5px; font-size: .7rem; line-height: 1.35; font-weight: 700; color: var(--blue-dark); background: var(--blue-soft); }
.tag--green, .feature-kicker--green { color: var(--blue-dark); background: var(--green-soft); }
.tag--yellow, .feature-kicker--yellow { color: #6b501b; background: var(--yellow-soft); }
.tag--coral, .feature-kicker--coral { color: #883e2e; background: var(--coral-soft); }
.feature-kicker--violet { color: #53406c; background: var(--violet-soft); }
.feature-kicker { margin-bottom: 24px; }
.package-meta { display: flex; gap: 7px; flex-wrap: wrap; margin-bottom: 16px; }
.plain-list, .check-list, .feature-list { list-style: none; margin: 0; padding: 0; }
.feature-list li { padding: 22px 0; border-top: 1px solid var(--line); }
.feature-list strong, .feature-list span { display: block; }
.feature-list span { color: var(--muted); margin-top: 6px; font-size: 1rem; }
.app-feature-card ul, .role-card ul { padding-left: 19px; color: var(--muted); font-size: .98rem; }
.app-feature-card li + li, .role-card li + li { margin-top: 8px; }
.development-list li { margin-top: 10px; font-size: .96rem; }
.development-status { font-size: .8rem; font-weight: 700; color: var(--green) !important; margin-bottom: 22px; }
.development-card--validation { background: #fcf7e9; }
.development-card--next { background: #f0edf5; }
.development-note { margin-top: 20px; font-size: .83rem; }
.callout { padding: clamp(28px, 4vw, 50px); border-radius: var(--radius-md); background: var(--yellow-soft); }
.callout--blue { color: var(--paper); background: var(--ink); }
.callout--blue h2, .callout--blue h3 { color: var(--paper); }
.callout--blue p { color: #d4deef; }
.app-flow { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; margin: 0; padding: 0; }
.app-flow li { padding-top: 24px; border-top: 1px solid var(--line); }
.app-flow li > span { display: block; font-size: .85rem; color: var(--green); margin-bottom: 25px; }
.app-flow strong { display: block; font-size: 1.25rem; margin-bottom: 10px; }
.app-flow p { color: var(--muted); font-size: 1rem; }
.boundary-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.boundary-grid article { background: var(--surface); color: var(--ink); padding: 28px; border-radius: var(--radius-md); }
.boundary-grid .tag { margin-bottom: 18px; }
.boundary-grid p { color: var(--muted); }
.number-grid, .detail-fact-grid, .evidence-level-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.number-card, .detail-fact-grid > div, .evidence-level { padding: 24px; background: var(--surface); color: var(--ink); border: 1px solid var(--line); border-radius: var(--radius-sm); }
.number-card strong, .detail-fact-grid strong { display: block; font-size: 1.65rem; font-weight: 700; margin-bottom: 12px; }
.number-card span, .detail-fact-grid span { font-size: .9rem; }
.timeline { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.timeline li { padding: 22px 0; border-bottom: 1px solid var(--line); }
.timeline strong { display: block; margin-bottom: 8px; }
.timeline p { color: var(--muted); }

.vocabulary-preview { min-width: 0; margin: 0; padding: 20px; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; color: var(--ink); }
.vocabulary-preview__heading { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; font-size: 1rem; font-weight: 700; }
.vocabulary-preview__heading span { font-size: .78rem; font-weight: 400; color: var(--muted); }
.vocabulary-grid { display: grid; gap: 7px; }
.grid--3x4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid--7x9 { grid-template-columns: repeat(9, minmax(0, 1fr)); }
.vocabulary-tile { display: flex; flex-direction: column; align-items: center; justify-content: center; min-width: 0; gap: 5px; padding: 7px 4px; border: 1px solid #cbd1dd; border-radius: 7px; background: #f4f2e7; color: var(--ink); }
.vocabulary-tile img { width: 100%; height: auto; aspect-ratio: 1; object-fit: contain; max-height: 76px; }
.vocabulary-tile > span { font-size: clamp(.65rem, 1.05vw, .85rem); line-height: 1.15; text-align: center; overflow-wrap: anywhere; }
.tile--people, .tile--pronouns { background: #f8edbb; }
.tile--actions, .tile--verbs { background: #def0d1; }
.tile--social { background: #f8d9de; }
.tile--questions { background: #e9dcf7; }
.tile--nouns { background: #fae0c6; }
.tile--descriptors { background: #dceaf5; }
.tile--places { background: #e2ead6; }
.tile--objects { background: #fae0c6; }
.vocabulary-preview figcaption { margin-top: 15px; color: var(--muted); font-size: .72rem; line-height: 1.45; }
.preview-details .vocabulary-preview { margin-block: 22px; }
.vocabulary-preview-scroll { overflow-x: auto; margin-block: 22px; border-radius: 14px; }
.vocabulary-preview-scroll .vocabulary-preview { margin: 0; }
.board-previews { display: grid; gap: 26px; }
.device-frame { padding: 10px; background: var(--ink); border-radius: 20px; }
.device-frame img { width: 100%; height: auto; aspect-ratio: 1194 / 834; object-fit: contain; border-radius: 12px; }
.device-caption { margin-top: 10px; font-size: .8rem; color: white; }
.preview-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.preview-card { overflow: hidden; border: 1px solid var(--line); border-radius: 14px; }
.preview-card figcaption { padding: 20px; }
.preview-card figcaption strong, .preview-card figcaption span { display: block; }
.preview-note { margin-top: 24px; }

.library-hero-grid { display: grid; grid-template-columns: 1fr 340px; align-items: end; gap: 65px; }
.library-hero-note { padding: 25px; background: var(--green-soft); border-radius: var(--radius-md); }
.library-hero-note h2 { font-family: inherit; font-size: 1.3rem; font-weight: 700; letter-spacing: -.02em; margin: 16px 0 12px; }
.library-hero-note p { font-size: .95rem; }
.library-browser { min-width: 0; }
.library-toolbar { display: flex; flex-wrap: wrap; gap: 24px; justify-content: space-between; align-items: end; padding-bottom: 24px; border-bottom: 1px solid var(--line); }
.library-search { flex: 1 1 340px; max-width: 600px; }
.library-search > span:first-child, .library-filters legend { display: block; font-size: .87rem; margin-bottom: 10px; font-weight: 700; }
.library-search-field { display: flex; align-items: center; padding: 0 15px; gap: 12px; background: white; border: 1px solid #a8b5cc; border-radius: 8px; }
.library-search-field:focus-within { outline: 2px solid var(--blue); outline-offset: 3px; }
.library-search-field input { width: 100%; min-width: 0; padding: 13px 0; color: var(--ink); border: 0; background: transparent; outline: 0; }
.library-search-field > span { font-size: 1.6rem; }
.library-filters { display: flex; gap: 8px; flex-wrap: wrap; padding: 0; margin: 0; border: 0; }
.library-filters button { min-height: 48px; padding: 10px 17px; border: 1px solid #a8b5cc; border-radius: 7px; background: transparent; color: var(--ink); }
.library-filters button.is-active { color: white; background: var(--ink); border-color: var(--ink); }
.library-result-summary { display: flex; justify-content: space-between; gap: 20px; padding: 22px 0; font-size: .86rem; color: var(--muted); }
.library-result-summary strong { color: var(--ink); }
.library-result-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.library-item-card { overflow: hidden; min-width: 0; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface); }
.library-item-preview { display: grid; height: 190px; gap: 10px; align-items: center; padding: 25px 35px; background: var(--blue-soft); text-decoration: none; }
.library-item-preview--tiles { grid-template-columns: repeat(3, 1fr); }
.library-item-preview--tiles span { padding: 10px 4px; text-align: center; background: var(--surface); border: 1px solid var(--line); border-radius: 5px; font-size: .9rem; font-weight: 700; color: var(--ink); }
.library-item-preview--tiles span:nth-child(3n+2) { background: #f7edc4; }
.library-item-preview--symbols { grid-template-columns: repeat(4, 1fr); background: var(--blue-soft); }
.library-item-preview--sample { grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 12px; background: var(--green-soft); height: 160px; }
.library-item-preview--sample img { padding: 7px; background: var(--surface); border-radius: 7px; }
.library-item-preview img { max-width: 84px; max-height: 76px; width: 100%; object-fit: contain; margin: auto; }
.library-item-body { padding: 27px; display: flex; flex-direction: column; flex: 1; }
.library-item-body h3 { font-size: 1.5rem; }
.library-item-body h3 a { color: var(--ink); text-decoration: none; }
.library-item-body h3 a:hover { text-decoration: underline; }
.library-item-body p { color: var(--muted); font-size: 1rem; }
.library-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 0 0 24px; }
.library-facts dt { font-size: .75rem; color: var(--muted); }
.library-facts dd { margin: 3px 0 0; font-size: .9rem; font-weight: 700; }
.library-card-footer { margin-top: auto; padding-top: 18px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 15px; font-size: .84rem; }
.library-card-footer a { font-weight: 700; }
.library-empty { text-align: center; padding: 50px 24px; background: var(--yellow-soft); border-radius: 12px; }
.package-detail-layout { display: grid; grid-template-columns: 1.2fr .8fr; gap: 55px; align-items: start; }
.download-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.package-metadata { margin: 22px 0; }
.package-metadata div, .download-panel dl div { display: grid; grid-template-columns: 90px minmax(0, 1fr); gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: .88rem; }
.package-metadata dt, .download-panel dt { color: var(--muted); }
.package-metadata dd, .download-panel dd { margin: 0; overflow-wrap: anywhere; }
.download-panel { background: var(--green-soft); padding: 28px; border-radius: var(--radius-md); }
.download-panel h2 { font-size: 1.75rem; margin-top: 18px; }
.download-panel .button { margin-top: 15px; }
.download-help { font-size: .88rem; }
.review-grid, .role-grid, .research-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.review-grid article { padding: 24px; border: 1px solid var(--line); border-radius: var(--radius-sm); }
.review-mark { display: inline-block; margin-bottom: 15px; color: var(--green); font-weight: 700; }
.board-list { display: grid; gap: 16px; margin: 24px 0; }
.board-list article { display: grid; grid-template-columns: 50px 1fr auto; gap: 18px; align-items: center; padding: 20px; border: 1px solid var(--line); border-radius: 9px; }
.board-list h3 { font-size: 1.1rem; margin-bottom: 6px; }
.board-list p { color: var(--muted); font-size: .9rem; }
.notice { margin-bottom: 32px; padding: 20px 24px; border-left: 3px solid #a47d23; background: var(--yellow-soft); font-size: .98rem; }
.doc-links { display: grid; gap: 14px; }
.doc-link { display: block; padding: 22px; border: 1px solid var(--line); border-radius: 10px; color: var(--ink); background: var(--surface); text-decoration: none; }
.doc-link strong, .doc-link span { display: block; }
.doc-link span { margin-top: 5px; font-size: .93rem; color: var(--muted); }
a.doc-link:hover { border-color: var(--ink); }
.doc-link--pending { background: transparent; }
.package-preview { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; padding: 15px; background: var(--green-soft); margin-bottom: 24px; }
.package-preview span { text-align: center; padding: 12px 4px; border-radius: 5px; background: var(--surface); }
.package-preview img { width: 100%; height: 65px; object-fit: contain; }
.evidence-level strong, .evidence-level span { display: block; }
.evidence-level strong { margin-bottom: 15px; }
.evidence-level span { font-size: .9rem; color: var(--muted); }
.evidence-table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 9px; }
.evidence-table { border-collapse: collapse; width: 100%; min-width: 660px; font-size: .95rem; background: var(--surface); }
.evidence-table th, .evidence-table td { padding: 20px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
.evidence-table th { background: var(--green-soft); }
.research-card h3 span { color: var(--green); font-size: .8rem; margin-right: 8px; }
.research-card ul { padding-left: 20px; }
.research-card li + li { margin-top: 10px; }
.reference-list { columns: 2; column-gap: 50px; padding-left: 20px; font-size: .96rem; }
.reference-list li { break-inside: avoid; padding: 0 0 22px 6px; }
.reference-list span { display: block; color: var(--muted); font-size: .87rem; margin-top: 5px; }
.section--blue .reference-list a { color: #e5ebf8; }
.section--blue .reference-list span { color: #c6d2e5; }

.site-footer { background: var(--canvas); color: var(--muted); padding: 65px 0 28px; border-top: 1px solid var(--line); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 65px; }
.brand--footer { color: var(--ink); }
.brand--footer .brand-copy small { color: var(--muted); }
.footer-brand p { margin-top: 25px; max-width: 360px; }
.footer-brand .fine-print { color: var(--muted); }
.footer-nav { display: grid; align-content: start; gap: 12px; font-size: .95rem; }
.footer-nav strong { color: var(--ink); margin-bottom: 8px; }
.footer-nav a { color: var(--muted); text-decoration: none; }
.footer-nav a:hover { color: var(--blue-dark); text-decoration: underline; }
.footer-nav span { color: var(--muted); font-size: .85rem; }
.footer-bottom { display: flex; justify-content: space-between; gap: 35px; padding-top: 24px; margin-top: 50px; border-top: 1px solid var(--line); font-size: .78rem; }
.footer-bottom p { margin: 0; }

@media (max-width: 1050px) {
  .shell { width: min(calc(100% - 48px), var(--shell)); }
  .header-inner { gap: 15px; min-height: 82px; }
  .site-nav { gap: 0; }
  .site-nav a { padding-inline: 10px; font-size: .87rem; }
  .site-nav .nav-cta { padding-inline: 13px; }
  .hero-grid { gap: 38px; }
  .hero-vocabulary { padding: 17px; }
  .hero-actions .button { font-size: .9rem; padding-inline: 16px; }
  .section-heading--row, .split, .library-hero-grid { gap: 40px; }
  .card-grid, .app-feature-grid, .ecosystem-grid, .development-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .library-hero-grid { grid-template-columns: 1fr 290px; }
  .number-grid, .evidence-level-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 800px) {
  .header-inner { flex-wrap: wrap; padding-block: 15px; }
  .site-nav { width: 100%; flex-wrap: wrap; }
  .js .nav-toggle { display: block; }
  .js .site-nav { display: none; }
  .js .site-nav.is-open { display: grid; width: 100%; padding: 8px 0 4px; }
  .site-nav a { padding: 13px 16px; font-size: 1rem; }
  .site-nav .nav-cta { margin: 5px 0 0; }
  .hero-grid, .product-hero-grid, .section-heading--row, .split, .online-boundary, .library-hero-grid, .package-detail-layout { grid-template-columns: 1fr; gap: 36px; }
  .hero-copy { max-width: 620px; }
  .hero h1 { font-size: clamp(3rem, 7.3vw, 4rem); }
  .hero-vocabulary { max-width: 570px; width: 100%; justify-self: center; padding: 24px; }
  .vocabulary-tile img { max-height: 84px; }
  .vocabulary-tile > span { font-size: .82rem; }
  .principle-grid { gap: 22px; }
  .principle-grid h3 { font-size: 1.2rem; }
  .proof-list { gap: 12px; font-size: .87rem; }
  .proof-list strong { display: block; }
  .proof-list--four { grid-template-columns: 1fr 1fr; }
  .proof-list--four li:nth-child(3) { border: 0; }
  .app-flow, .detail-fact-grid { grid-template-columns: 1fr 1fr; }
  .ecosystem-list > a { grid-template-columns: 28px 1fr 24px; gap: 15px; }
  .ecosystem-list .tag { grid-column: 2; justify-self: start; }
  .ecosystem-list > a > span:last-child { grid-column: 3; grid-row: auto; }
  .ecosystem-list h3 { font-size: 1.45rem; }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; gap: 25px; }
  .reference-list { columns: 1; }
}
@media (max-width: 600px) {
  body { font-size: 17px; }
  .shell { width: calc(100% - 36px); }
  .brand img { width: 38px; height: 38px; }
  .brand-copy strong { font-size: 1.85rem; }
  .brand-copy small { font-size: .64rem; }
  .header-inner { min-height: 78px; padding-block: 12px; }
  .hero, .product-hero { padding: 48px 0; }
  .hero h1 { font-size: clamp(2.8rem, 11vw, 3.8rem); }
  .eyebrow { font-size: .67rem; margin-bottom: 20px; }
  .hero-actions { display: grid; }
  .hero-actions .button { font-size: 1rem; }
  .hero-vocabulary { padding: 17px; }
  .hero-vocabulary__intro { font-size: .7rem; }
  .vocabulary-preview { padding: 12px; }
  .vocabulary-grid { gap: 5px; }
  .vocabulary-tile { padding: 5px 3px; }
  .vocabulary-tile > span { font-size: .73rem; }
  .grid--7x9 { min-width: 650px; }
  .vocabulary-preview-scroll .vocabulary-preview { min-width: 680px; }
  .preview-details .vocabulary-preview__heading, .preview-details figcaption { max-width: 620px; }
  .proof-strip { padding-block: 20px; }
  .proof-list { grid-template-columns: 1fr; gap: 12px; }
  .proof-list strong { display: inline; }
  .proof-list li + li { border: 0; }
  .section { padding-block: 60px; }
  .section-heading { margin-bottom: 30px; }
  .principle-grid, .card-grid, .app-feature-grid, .development-grid, .ecosystem-grid, .preview-grid, .library-result-grid, .review-grid, .role-grid, .research-grid, .boundary-grid, .package-grid { grid-template-columns: 1fr; }
  .principle-grid { gap: 25px; }
  .principle-grid h3 { max-width: none; font-size: 1.4rem; }
  .chapter-number { margin-bottom: 20px; }
  .collection-panel { padding: 22px; }
  .collection-panel__heading { align-items: start; }
  .size-grid a { padding: 18px 12px; }
  .size-grid strong { font-size: 1.9rem; }
  .size-grid span { font-size: .78rem; }
  .card, .app-feature-card, .role-card, .development-card { padding: 24px; }
  .ecosystem-list > a { padding-block: 24px; }
  .ecosystem-list > a > span:last-child { grid-column: 3; grid-row: auto; }
  .page-hero { padding: 35px 0 45px; }
  .breadcrumb { margin-bottom: 26px; }
  .library-result-summary, .library-card-footer { flex-direction: column; gap: 8px; }
  .library-item-preview { padding: 23px; }
  .library-item-body { padding: 23px; }
  .library-filters { gap: 7px; }
  .library-filters button { padding-inline: 15px; }
  .package-metadata div { grid-template-columns: 75px minmax(0, 1fr); }
  .number-card, .evidence-level, .detail-fact-grid > div { padding: 18px; }
  .number-card strong { font-size: 1.35rem; }
  .board-list article { grid-template-columns: 35px 1fr; }
  .board-list article > strong { grid-column: 2; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 38px 20px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { display: grid; gap: 15px; }
}
.home-hero { padding: 88px 0 62px; background: #fafafb; }
.home-hero .hero-grid { display: flex; flex-direction: column; gap: 0; }
.home-hero .hero-copy { max-width: none; width: 100%; text-align: center; }
.home-hero .eyebrow { font-size: .875rem; letter-spacing: .07em; margin-bottom: 20px; }
.home-hero h1 { max-width: none; margin: 0; font-size: clamp(2.5rem, 6.8vw, 5.75rem); line-height: 1.1; letter-spacing: -.045em; }
.home-hero h1 em { display: inline-block; }
.home-hero .lead { max-width: none; margin: 20px 0 0; font-size: clamp(1.2rem, 2.55vw, 1.75rem); }
.home-hero .hero-actions { display: flex; justify-content: center; align-items: center; gap: 32px; margin-top: 30px; }
.home-hero .hero-actions .button { padding: 11px 30px; font-size: 1.125rem; min-height: 48px; }
.home-hero .hero-actions .text-link { min-height: 48px; align-items: center; font-size: 1.125rem; text-decoration: none; }
.home-hero .hero-actions .text-link:hover { text-decoration: underline; }
.home-hero .status-line { margin-top: 25px; font-size: .875rem; }
.home-hero .hero-vocabulary { width: min(78vw, 1040px); max-width: 100%; margin-top: 60px; padding: 0; background: transparent; border-radius: 0; }
.home-hero .vocabulary-preview { padding: 0; background: transparent; border: 0; border-radius: 0; }
.home-hero .vocabulary-preview__heading { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.home-hero .vocabulary-grid { gap: 10px; padding: 24px; border-radius: 12px; background: var(--surface); box-shadow: 0 4px 9px rgb(17 19 26 / 8%), 0 0 1px rgb(17 19 26 / 8%); }
.home-hero .vocabulary-tile { aspect-ratio: 1 / 1.03; gap: 6px; padding: clamp(5px, 1.3vw, 18px); border-color: rgb(17 19 26 / 8%); }
.home-hero .vocabulary-tile img { width: 78%; max-height: none; height: auto; }
.home-hero .vocabulary-tile > span { font-size: clamp(.75rem, 2vw, 1.5rem); line-height: 1.2; }
.home-hero .vocabulary-preview figcaption { margin: 24px auto 0; max-width: 800px; text-align: center; font-size: .875rem; line-height: 1.65; }
.home-principles { background: var(--canvas); padding-block: 72px; }
.home-principles .shell { width: min(calc(100% - 128px), 1120px); }
.home-principles .section-heading { margin-bottom: 38px; }
.home-principles h2 { font-size: clamp(2rem, 3.85vw, 3rem); margin-bottom: 0; }
.home-principles .principle-grid { gap: 48px; }
.home-principles .principle-grid article { border: 0; padding: 0; }
.home-principles .principle-grid h3 { max-width: none; font-size: 1.25rem; margin-bottom: 14px; }
.home-principles .principle-grid p { font-size: 1.125rem; line-height: 1.55; }
@media (min-width: 801px) and (max-width: 1050px) {
  .header-inner { min-height: 74px; width: calc(100% - 64px); }
  .site-nav { gap: 10px; }
}
@media (max-width: 800px) {
  .home-hero { padding-top: 64px; }
  .home-hero .hero-vocabulary { width: min(88vw, 700px); }
  .home-principles .principle-grid { grid-template-columns: 1fr; gap: 26px; }
}
@media (max-width: 600px) {
  .site-header .brand img { width: 32px; height: 32px; }
  .site-header .brand-copy strong { font-size: 1.55rem; }
  .header-inner { min-height: 66px; padding-block: 8px; }
  .home-hero { padding: 52px 0 44px; }
  .home-hero .eyebrow { font-size: .78rem; }
  .home-hero h1 { font-size: clamp(2.1rem, 9.4vw, 3.5rem); }
  .home-hero .lead { max-width: 320px; margin: 24px auto 0; font-size: 1.15rem; }
  .home-hero .hero-actions { gap: 8px 20px; margin-top: 26px; }
  .home-hero .hero-actions .button, .home-hero .hero-actions .text-link { font-size: 1rem; }
  .home-hero .status-line { max-width: 320px; margin-inline: auto; font-size: .8rem; }
  .home-hero .hero-vocabulary { width: 100%; margin-top: 38px; }
  .home-hero .vocabulary-grid { padding: 10px; gap: 5px; }
  .home-hero .vocabulary-tile { padding: 6px 2px; aspect-ratio: auto; min-height: 86px; }
  .home-hero .vocabulary-tile img { width: 80%; }
  .home-hero .vocabulary-tile > span { font-size: clamp(.64rem, 2.7vw, .85rem); }
  .home-hero .vocabulary-preview figcaption { font-size: .75rem; margin-top: 20px; }
  .home-principles { padding-block: 48px; }
  .home-principles .shell { width: calc(100% - 40px); }
  .home-principles .principle-grid { gap: 30px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}
/* The CAA module shares the editorial identity of /materiais/, not its shop UI. */
.header-inner { min-height: 110px; }
.brand img, .site-header .brand img { width: 255px; height: auto; }
.brand-module { border-left: 1px solid var(--line); padding-left: 15px; color: var(--blue-dark); font-size: .78rem; letter-spacing: .14em; }
.button { border-radius: 8px; }
.home-hero { background: var(--paper); }
.home-hero h1 { font-size: clamp(2.5rem, 5.6vw, 4.6rem); letter-spacing: -.035em; }
.vocabulary-tile { font-family: "Atkinson Hyperlegible", "Segoe UI", sans-serif; }
.home-hero .hero-vocabulary { width: min(76vw, 900px); }
.home-hero .vocabulary-grid { border-radius: 18px; box-shadow: 0 16px 60px #203e3710; border: 1px solid var(--line); }
@media (max-width: 1100px) { .header-inner { gap: 14px; } .brand img, .site-header .brand img { width: 214px; } .site-nav a { padding-inline: 9px; } }
@media (max-width: 600px) { .header-inner { min-height: 88px; } .brand img, .site-header .brand img { width: 182px; } .brand-module { padding-left: 10px; font-size: .68rem; } .home-hero h1 { font-size: clamp(2.1rem, 9vw, 3.5rem); } .home-hero .hero-vocabulary { width: 100%; } }
@media print {
  .site-header, .site-footer, .hero-actions, .action-row { display: none; }
  body { color: black; background: white; font-size: 12pt; }
  .section, .hero, .page-hero { padding: 24px 0; }
  details { break-inside: avoid; }
}