/* ==========================================================================
   Visioncarehub — Design DNA ID: D-0135B0-00 (archetype-content-sales-funnel)
   Palette: color-slate-cyan
   Typography: type-editorial-mixed
   Layout: layout-storytelling-flow
   ========================================================================== */

:root {
  /* Colors */
  --bg-main: #F1F5F9;
  --surface: #FFFFFF;
  --text-primary: #0F172A;
  --text-secondary: #64748B;
  --accent: #06B6D4;
  --accent-hover: #0891B2;
  --border: #E2E8F0;
  --muted-bg: #E2E8F0;
  --dark-surface: #0F172A;
  --dark-surface-text: #F8FAFC;

  /* Typography */
  --font-sans: 'Helvetica Neue', Arial, sans-serif;
  --font-serif: 'Bodoni MT', 'Didot', 'Baskerville', Georgia, serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Spacing (Density Airy) */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;

  /* Container */
  --max-width: 1200px;
  --max-width-read: 760px;
}

/* Bulletproof Global Reset & Layout Constraints */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

html, body {
  overflow-x: hidden;
  width: 100%;
  margin: 0;
  padding: 0;
  background-color: var(--bg-main);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Accessible Skip Link */
.skip-link {
  position: absolute;
  top: -60px;
  left: 20px;
  background: var(--text-primary);
  color: #fff;
  padding: 10px 16px;
  z-index: 1000;
  text-decoration: none;
  font-weight: 500;
  border-radius: 2px;
  transition: top 0.2s;
}
.skip-link:focus {
  top: 15px;
  outline: 2px solid var(--accent);
}

/* Focus Indicator for WCAG AA */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 400;
  color: var(--text-primary);
  margin-top: 0;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 1.05;
  margin-bottom: var(--space-md);
}

h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.75rem);
  line-height: 1.1;
  margin-bottom: var(--space-md);
  margin-top: var(--space-xl);
}

h3 {
  font-size: clamp(1.3rem, 2.2vw, 1.75rem);
  line-height: 1.2;
  margin-bottom: var(--space-sm);
  margin-top: var(--space-lg);
}

p {
  font-size: 1rem;
  line-height: 1.6;
  font-weight: 300;
  margin-top: 0;
  margin-bottom: var(--space-md);
  max-width: var(--max-width-read);
}

a {
  color: var(--accent-hover);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 0.2s ease, text-decoration-color 0.2s ease;
}

a:hover {
  color: var(--accent);
}

/* Semantic Global Elements: Header, Nav, Main, Footer, Section, Article */
header {
  width: 100%;
  background: rgba(241, 245, 249, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}

.brand-link {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-link span {
  color: var(--accent);
}

.nav-links-wrap {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.nav-link {
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 400;
  padding: 0.35rem 0.5rem;
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
}

.nav-link:hover, .nav-link.active {
  color: var(--accent-hover);
  border-bottom-color: var(--accent);
}

/* Header Order CTA Button */
.btn-nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--text-primary);
  color: #FFFFFF !important;
  text-decoration: none !important;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.6rem 1.25rem;
  border-radius: 2px;
  border: 1px solid var(--text-primary);
  transition: all 0.2s ease;
  min-height: 44px;
  min-width: 44px;
}

.btn-nav-cta:hover {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
  color: #FFFFFF !important;
}

/* Mobile Nav Toggle */
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  padding: 0.5rem;
  cursor: pointer;
  border-radius: 2px;
  min-height: 44px;
  min-width: 44px;
  align-items: center;
  justify-content: center;
}

.nav-toggle svg {
  width: 24px;
  height: 24px;
  fill: var(--text-primary);
}

/* Main Structure & Longform Flow Sections */
main {
  width: 100%;
  display: flex;
  flex-direction: column;
}

section {
  width: 100%;
  padding: var(--space-2xl) 1.5rem;
  border-bottom: 1px solid var(--border);
}

section:nth-of-type(even) {
  background-color: var(--surface);
}

section:nth-of-type(odd) {
  background-color: var(--bg-main);
}

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.reading-wrap {
  max-width: var(--max-width-read);
  margin: 0 auto;
}

/* Hero Split Editorial (Homepage) */
.hero-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 85vh;
  padding: 0;
  border-bottom: 1px solid var(--border);
  background-color: var(--surface);
}

.hero-split-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-2xl) var(--space-xl);
}

.hero-split-image {
  background-color: var(--dark-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.hero-split-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero-tagline {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-hover);
  margin-bottom: var(--space-sm);
  background: rgba(6, 182, 212, 0.1);
  padding: 0.25rem 0.6rem;
  width: fit-content;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
  margin-top: var(--space-md);
}

/* Article Hero & Headers */
.page-header {
  padding: var(--space-xl) 1.5rem var(--space-lg);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-family: var(--font-mono);
  margin-bottom: var(--space-sm);
  flex-wrap: wrap;
}

.toc-box {
  background: var(--bg-main);
  border-left: 3px solid var(--accent);
  padding: 1.25rem 1.5rem;
  margin: var(--space-lg) 0;
}

.toc-box h3 {
  margin-top: 0;
  font-size: 1.15rem;
  font-family: var(--font-sans);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.toc-list {
  list-style: none;
  padding-left: 0;
  margin: 0;
}

.toc-list li {
  margin-bottom: 0.5rem;
}

.toc-list a {
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.95rem;
}
.toc-list a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* Editorial CTA Button */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--accent-hover);
  color: #FFFFFF !important;
  text-decoration: none !important;
  font-weight: 500;
  font-size: 1rem;
  padding: 0.9rem 1.75rem;
  border-radius: 2px;
  border: 1px solid var(--accent-hover);
  transition: background-color 0.2s ease, transform 0.1s ease;
  min-height: 48px;
  box-shadow: 0 2px 4px rgba(15, 23, 42, 0.08);
}

.btn-primary:hover {
  background-color: #0e7490;
  border-color: #0e7490;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: transparent;
  color: var(--text-primary) !important;
  text-decoration: none !important;
  font-weight: 500;
  font-size: 1rem;
  padding: 0.9rem 1.75rem;
  border-radius: 2px;
  border: 1px solid var(--text-primary);
  transition: all 0.2s ease;
  min-height: 48px;
}

.btn-secondary:hover {
  background-color: var(--text-primary);
  color: #FFFFFF !important;
}

/* Card System: Cards Soft Panel */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 2rem;
  border-radius: 2px;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.04);
  border-color: var(--accent);
}

.card-number {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent-hover);
  margin-bottom: 0.75rem;
}

.card h3 {
  margin-top: 0;
  font-size: 1.35rem;
}

.card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

/* Editorial Callout & Pull Quotes */
blockquote {
  border-left: 3px solid var(--accent);
  margin: var(--space-lg) 0;
  padding: 0.5rem 0 0.5rem 1.5rem;
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-style: italic;
  color: var(--text-primary);
  background: rgba(6, 182, 212, 0.04);
}

.callout {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  padding: 1.5rem;
  margin: var(--space-lg) 0;
  border-radius: 2px;
}

.callout-title {
  font-weight: 600;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

/* Key Takeaways & Checklist Box */
.takeaways-box {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 2rem;
  margin: var(--space-xl) 0;
  border-radius: 2px;
}

.takeaways-box h3 {
  margin-top: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-primary);
}

.checklist-items {
  list-style: none;
  padding-left: 0;
  margin: 1rem 0;
}

.checklist-items li {
  position: relative;
  padding-left: 2rem;
  margin-bottom: 0.75rem;
  font-size: 0.95rem;
}

.checklist-items li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent-hover);
  font-weight: bold;
}

/* Conversion Bridge Block (Блок-міст) */
.conversion-bridge {
  background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
  color: #FFFFFF;
  border: 1px solid #334155;
  padding: 3rem 2.5rem;
  margin: var(--space-2xl) 0;
  border-radius: 2px;
}

.conversion-bridge h3, .conversion-bridge h2 {
  color: #FFFFFF;
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 2.8vw, 2.2rem);
  margin-top: 0;
  margin-bottom: 1rem;
}

.conversion-bridge p {
  color: #CBD5E1;
  font-size: 1.05rem;
  line-height: 1.6;
  max-width: 100%;
}

.conversion-bridge .bridge-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(6, 182, 212, 0.15);
  padding: 0.25rem 0.6rem;
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
}

.bridge-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin: 1.5rem 0 2rem;
}

.bridge-feat {
  border-left: 2px solid var(--accent);
  padding-left: 1rem;
}

.bridge-feat strong {
  display: block;
  color: #F8FAFC;
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}

.bridge-feat span {
  color: #94A3B8;
  font-size: 0.85rem;
}

.conversion-bridge .btn-primary {
  background-color: var(--accent);
  color: #0F172A !important;
  font-weight: 600;
  border-color: var(--accent);
}

.conversion-bridge .btn-primary:hover {
  background-color: #22d3ee;
  border-color: #22d3ee;
}

/* Reference Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  margin: var(--space-lg) 0;
  -webkit-overflow-scrolling: touch;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  background: var(--surface);
  border: 1px solid var(--border);
}

th, td {
  padding: 1rem 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

th {
  background: var(--muted-bg);
  font-weight: 600;
  font-family: var(--font-sans);
  color: var(--text-primary);
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}

tr:hover td {
  background: rgba(241, 245, 249, 0.5);
}

/* Order Page Styles */
.order-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.order-visual-wrap {
  position: sticky;
  top: 90px;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 2rem;
  border-radius: 2px;
}

.order-visual-wrap img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 2px;
}

.price-tiers {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin: 1.5rem 0;
}

.price-card {
  border: 2px solid var(--border);
  background: var(--surface);
  padding: 1.25rem;
  border-radius: 2px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all 0.2s ease;
}

.price-card:hover {
  border-color: var(--accent);
}

.price-card.selected {
  border-color: var(--accent);
  background: rgba(6, 182, 212, 0.04);
}

.price-card input[type="radio"] {
  width: 20px;
  height: 20px;
  accent-color: var(--accent);
}

.price-amount {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.4rem;
  font-size: 0.9rem;
}

.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: 2px;
  font-family: var(--font-sans);
  font-size: 1rem;
  background: var(--surface);
  color: var(--text-primary);
  min-height: 44px;
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: 2px solid var(--accent);
  border-color: var(--accent);
}

.form-error {
  color: #dc2626;
  font-size: 0.85rem;
  margin-top: 0.25rem;
  display: none;
}

.trust-badges-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 1.5rem;
}

.trust-badge-item {
  background: var(--bg-main);
  border: 1px solid var(--border);
  padding: 1rem;
  text-align: center;
  font-size: 0.85rem;
  font-weight: 500;
}

/* Accordion FAQ */
.faq-accordion {
  margin: var(--space-lg) 0;
}

details {
  background: var(--surface);
  border: 1px solid var(--border);
  margin-bottom: 0.75rem;
  border-radius: 2px;
  transition: all 0.2s ease;
}

details[open] {
  border-color: var(--accent);
}

summary {
  padding: 1.25rem 1.5rem;
  font-weight: 600;
  font-size: 1.05rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: "+";
  font-size: 1.4rem;
  font-family: var(--font-mono);
  color: var(--accent-hover);
  transition: transform 0.2s ease;
}

details[open] summary::after {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 1.5rem 1.5rem 1.5rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Footer: footer-information-dense */
footer {
  width: 100%;
  background: var(--dark-surface);
  color: var(--dark-surface-text);
  padding: var(--space-2xl) 1.5rem var(--space-xl);
  border-top: 3px solid var(--accent);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.5rem;
}

.footer-col h4 {
  color: #FFFFFF;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1.25rem;
  font-weight: 600;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col ul li {
  margin-bottom: 0.6rem;
}

.footer-col a {
  color: #94A3B8;
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.footer-col a:hover {
  color: var(--accent);
  text-decoration: underline;
}

.footer-disclaimer {
  max-width: var(--max-width);
  margin: 2.5rem auto 0;
  padding-top: 2rem;
  border-top: 1px solid #334155;
  font-size: 0.8rem;
  color: #64748B;
  line-height: 1.5;
}

.footer-bottom {
  max-width: var(--max-width);
  margin: 1.5rem auto 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: #64748B;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Responsive & Mobile Large Type Rules */
@media (max-width: 1024px) {
  .hero-split {
    grid-template-columns: 1fr;
    min-height: auto;
  }
  .hero-split-image {
    min-height: 380px;
  }
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .order-layout {
    grid-template-columns: 1fr;
  }
  .order-visual-wrap {
    position: static;
  }
  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --space-xl: 2.5rem;
    --space-2xl: 3.5rem;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-links-wrap {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    padding-top: 1.5rem;
    margin-top: 1rem;
    border-top: 1px solid var(--border);
  }

  .nav-links-wrap.open {
    display: flex;
  }

  .nav-link {
    font-size: 1.1rem;
    padding: 0.5rem 0;
    width: 100%;
  }

  .btn-nav-cta {
    width: 100%;
    margin-top: 0.5rem;
  }

  .hero-split-content {
    padding: var(--space-xl) 1rem;
  }

  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .trust-badges-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  /* Mobile Large Type */
  p, .checklist-items li, td, .faq-answer {
    font-size: 1.05rem;
  }
}

/* ==========================================================================
   Accessibility Panel & Low Vision Mode (Версия для слабовидящих)
   WCAG 2.1 AAA Compliant Features
   ========================================================================== */

.a11y-toolbar {
  width: 100%;
  background: #0F172A;
  color: #F8FAFC;
  border-bottom: 2px solid var(--accent);
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  position: relative;
  z-index: 101;
}

.a11y-toolbar-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.a11y-title {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  color: #F8FAFC;
  letter-spacing: 0.02em;
}

.a11y-title svg {
  color: var(--accent);
}

.a11y-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.a11y-group {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.a11y-label {
  color: #94A3B8;
  font-size: 0.8rem;
  margin-right: 0.2rem;
}

.a11y-btn {
  background: #1E293B;
  color: #F8FAFC;
  border: 1px solid #475569;
  border-radius: 2px;
  padding: 0.35rem 0.6rem;
  font-size: 0.85rem;
  cursor: pointer;
  min-height: 36px;
  min-width: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  font-weight: 500;
}

.a11y-btn:hover, .a11y-btn:focus-visible {
  background: var(--accent);
  color: #0F172A;
  border-color: var(--accent);
  outline: 2px solid #FFFFFF;
}

.a11y-btn[aria-pressed="true"], .a11y-btn.active {
  background: var(--accent);
  color: #0F172A;
  border-color: var(--accent);
  font-weight: 700;
}

.lang-switch-wrap {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-left: auto;
}

.lang-label {
  font-size: 1rem;
}

.lang-switch-btn {
  color: #94A3B8;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.85rem;
  padding: 0.2rem 0.4rem;
  border-radius: 2px;
  transition: color 0.2s;
}

.lang-switch-btn:hover {
  color: var(--accent);
}

.lang-switch-btn.active {
  color: #0F172A;
  background: var(--accent);
  text-decoration: none;
}

.lang-sep {
  color: #475569;
}

/* Accessible Modes applied to <html> or <body> */
/* 1. High Contrast Mode (Черно-белый / Высококонтрастный режим) */
body.a11y-contrast {
  --bg-main: #000000 !important;
  --surface: #000000 !important;
  --text-primary: #FFFFFF !important;
  --text-secondary: #E2E8F0 !important;
  --accent: #FFFF00 !important; /* Yellow high visibility on black */
  --accent-hover: #FFFF00 !important;
  --border: #FFFFFF !important;
  --muted-bg: #111111 !important;
  background-color: #000000 !important;
  color: #FFFFFF !important;
}

body.a11y-contrast header {
  background: #000000 !important;
  border-bottom: 2px solid #FFFFFF !important;
}

body.a11y-contrast .a11y-toolbar {
  background: #000000 !important;
  border-bottom: 2px solid #FFFF00 !important;
}

body.a11y-contrast .card, 
body.a11y-contrast .price-card, 
body.a11y-contrast .takeaways-box, 
body.a11y-contrast .callout, 
body.a11y-contrast table, 
body.a11y-contrast details {
  background: #000000 !important;
  border: 2px solid #FFFFFF !important;
  color: #FFFFFF !important;
}

body.a11y-contrast .card p, 
body.a11y-contrast td, 
body.a11y-contrast .faq-answer {
  color: #FFFFFF !important;
}

body.a11y-contrast a {
  color: #FFFF00 !important;
  text-decoration: underline !important;
  font-weight: 700 !important;
}

body.a11y-contrast .btn-primary, 
body.a11y-contrast .btn-nav-cta {
  background: #FFFF00 !important;
  color: #000000 !important;
  border: 2px solid #FFFFFF !important;
  font-weight: 900 !important;
}

body.a11y-contrast .btn-secondary {
  background: #000000 !important;
  color: #FFFF00 !important;
  border: 2px solid #FFFF00 !important;
  font-weight: 700 !important;
}

body.a11y-contrast .conversion-bridge {
  background: #000000 !important;
  border: 3px solid #FFFF00 !important;
}

body.a11y-contrast .conversion-bridge p,
body.a11y-contrast .bridge-feat span {
  color: #FFFFFF !important;
}

body.a11y-contrast footer {
  background: #000000 !important;
  border-top: 3px solid #FFFF00 !important;
  color: #FFFFFF !important;
}

body.a11y-contrast footer a {
  color: #FFFF00 !important;
}

/* 2. Text Resizing */
body.font-size-large {
  font-size: 19px !important;
}
body.font-size-large h1 { font-size: clamp(2.8rem, 6vw, 4.5rem) !important; }
body.font-size-large h2 { font-size: clamp(2.2rem, 4.5vw, 3.2rem) !important; }
body.font-size-large p, body.font-size-large li, body.font-size-large td { font-size: 1.25rem !important; }

body.font-size-xlarge {
  font-size: 22px !important;
}
body.font-size-xlarge h1 { font-size: clamp(3.2rem, 7vw, 5rem) !important; }
body.font-size-xlarge h2 { font-size: clamp(2.6rem, 5vw, 3.8rem) !important; }
body.font-size-xlarge p, body.font-size-xlarge li, body.font-size-xlarge td { font-size: 1.45rem !important; }

/* 3. Line Spacing */
body.a11y-spacing p, body.a11y-spacing li, body.a11y-spacing td {
  line-height: 2 !important;
  letter-spacing: 0.05em !important;
}

/* 4. Highly Legible Sans-Serif Font Mode */
body.a11y-legible-font, 
body.a11y-legible-font h1, 
body.a11y-legible-font h2, 
body.a11y-legible-font h3, 
body.a11y-legible-font h4 {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif !important;
  letter-spacing: 0.03em !important;
}

@media (max-width: 768px) {
  .a11y-toolbar-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .lang-switch-wrap {
    margin-left: 0;
    width: 100%;
    justify-content: flex-end;
  }
}

/* ==========================================================================
   Certifications & Trust Badges Section
   ========================================================================== */

.certifications-section {
  width: 100%;
  padding: var(--space-2xl) 1.5rem;
  background-color: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.cert-header {
  text-align: center;
  max-width: var(--max-width-read);
  margin: 0 auto var(--space-xl);
}

.cert-header h2 {
  margin-top: 0.5rem;
  margin-bottom: 0.75rem;
}

.cert-header p {
  margin: 0 auto;
  color: var(--text-secondary);
  font-size: 1.05rem;
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.cert-card {
  background: #FAFAFA;
  border: 1px solid #E0E0E0;
  border-radius: 4px;
  padding: 30px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.cert-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(15, 23, 42, 0.05);
  border-color: #CBD5E1;
}

/* Card 3 (CE Mark) spans full width or centers if 3 cards */
.cert-card-featured {
  grid-column: 1 / -1;
  max-width: 680px;
  margin: 0 auto;
  width: 100%;
}

.cert-badge-wrap {
  width: 90px;
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: #475569;
}

.cert-badge-wrap svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

.cert-title {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 0;
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

.cert-desc {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin: 0;
  max-width: 100%;
}

/* Low Vision High-Contrast Support for Certifications */
body.a11y-contrast .certifications-section {
  background: #000000 !important;
  border-color: #FFFFFF !important;
}

body.a11y-contrast .cert-card {
  background: #000000 !important;
  border: 2px solid #FFFFFF !important;
}

body.a11y-contrast .cert-badge-wrap {
  color: #FFFF00 !important;
}

body.a11y-contrast .cert-title {
  color: #FFFFFF !important;
}

body.a11y-contrast .cert-desc {
  color: #FFFFFF !important;
}

@media (max-width: 768px) {
  .cert-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .cert-card {
    padding: 24px 20px;
  }
  .cert-card-featured {
    grid-column: auto;
  }
}