:root {
  --font-sans: 'SF Pro Text', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-serif: ui-serif, Georgia, Cambria, 'Times New Roman', serif;
  --font-mono: ui-monospace, Menlo, Monaco, Consolas, monospace;

  /* Color System: color-warm-sand */
  --bg-color: #FAF6F0;
  --surface-color: #FFFFFF;
  --text-primary: #332D27;
  --text-secondary: #736B63;
  --accent-color: #D97706;
  --border-color: #EBE3D5;
  --muted-bg: #F3EBE1;
  --interactive-color: #B45309;

  /* Density Airy & Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1.25rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4.5rem;
  --container-max: 1200px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --transition-fast: 0.2s ease;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  overflow-x: hidden;
  width: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-size: 1rem; /* 16px min for readability & WCAG */
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Skip link for a11y */
.skip-link {
  position: absolute;
  top: -60px;
  left: 1rem;
  background: var(--text-primary);
  color: #FFFFFF;
  padding: 0.75rem 1.25rem;
  z-index: 1000;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-weight: 600;
  transition: top var(--transition-fast);
}
.skip-link:focus {
  top: 1rem;
}

/* Typography Scale */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  color: var(--text-primary);
  font-weight: 600;
  letter-spacing: -0.015em;
}

h1 {
  font-size: 2rem;
  line-height: 1.25;
  margin-bottom: var(--spacing-md);
}

h2 {
  font-size: 1.5rem;
  line-height: 1.25;
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
}

h3 {
  font-size: 1.25rem;
  line-height: 1.25;
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-xs);
}

p {
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
  max-width: 75ch;
}

a {
  color: var(--interactive-color);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--transition-fast);
}
a:hover {
  color: var(--accent-color);
}
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

/* Semantic Container Layout directly on tags */
header {
  width: 100%;
  background-color: var(--bg-color);
  border-bottom: 2px solid var(--border-color);
  /* Nav Large Editorial - massive typographic presence, scrolls out of view */
  padding: 2.5rem 1.5rem 1.5rem 1.5rem;
}

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

.header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.25rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.brand-wrap {
  text-decoration: none;
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
}

.brand-title {
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  line-height: 1;
}

.brand-domain {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.header-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--muted-bg);
  border: 1px solid var(--border-color);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.header-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--accent-color);
  color: #FFFFFF !important;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  min-height: 44px;
  min-width: 44px;
  border: none;
  cursor: pointer;
  box-shadow: 0 1px 2px rgba(0,0,0,0.05);
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}
.header-cta-btn:hover {
  background-color: var(--interactive-color);
  transform: translateY(-1px);
}

/* Nav Large Editorial Menu */
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 1.75rem;
  flex-wrap: wrap;
  padding: 0;
  margin: 0;
}

.nav-links a {
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.5rem 0;
  position: relative;
  transition: color var(--transition-fast);
}
.nav-links a:hover, .nav-links a.active {
  color: var(--interactive-color);
}
.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--accent-color);
}

/* Mobile Nav Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-color);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--text-primary);
  font-size: 1rem;
  min-height: 44px;
  min-width: 44px;
  align-items: center;
  justify-content: center;
}

/* Main Container */
main {
  width: 100%;
  min-height: 60vh;
}

/* Sections Offset Strategy */
section {
  padding: var(--spacing-2xl) 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

section:nth-of-type(even) {
  background-color: var(--surface-color);
}
section:nth-of-type(odd) {
  background-color: var(--bg-color);
}
section.alt-bg {
  background-color: var(--muted-bg);
}

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

.section-header {
  margin-bottom: var(--spacing-xl);
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-color);
  margin-bottom: var(--spacing-xs);
}

/* Hero Minimal Title */
.hero-minimal {
  padding: var(--spacing-2xl) 1.5rem var(--spacing-xl) 1.5rem;
  background-color: var(--bg-color);
  border-bottom: 1px solid var(--border-color);
}
.hero-minimal .hero-inner {
  max-width: var(--container-max);
  margin: 0 auto;
}
.hero-minimal h1 {
  font-size: 2.25rem;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}
.hero-minimal .lead {
  font-size: 1.15rem;
  line-height: 1.5;
  color: var(--text-secondary);
  max-width: 65ch;
  margin-bottom: var(--spacing-lg);
}
.hero-meta {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-color);
}

/* Grid Modular 12 */
.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 2rem;
}

.col-12 { grid-column: span 12; }
.col-8 { grid-column: span 8; }
.col-6 { grid-column: span 6; }
.col-4 { grid-column: span 4; }
.col-3 { grid-column: span 3; }

/* Cards Layered Component with Interaction Hover Shift */
.card-layer {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
  position: relative;
}
.card-layer:hover {
  transform: translateY(-3px);
  border-color: var(--accent-color);
}
.card-layer h3 {
  margin-top: 0;
  margin-bottom: var(--spacing-xs);
  font-size: 1.2rem;
}
.card-layer p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  flex-grow: 1;
  margin-bottom: var(--spacing-md);
}
.card-meta {
  font-size: 0.8rem;
  color: var(--text-secondary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-sm);
  border-top: 1px solid var(--border-color);
  margin-top: auto;
}

/* Article Structured Guide Layout */
article {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--spacing-xl) 1.5rem var(--spacing-2xl) 1.5rem;
}

.article-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 3rem;
  align-items: start;
}

aside.article-sidebar {
  position: sticky;
  top: 2rem;
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 1.5rem;
}
aside.article-sidebar h4 {
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
  color: var(--text-secondary);
}
aside.article-sidebar ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
aside.article-sidebar li {
  margin-bottom: 0.75rem;
}
aside.article-sidebar a {
  font-size: 0.9rem;
  color: var(--text-primary);
  text-decoration: none;
  display: block;
}
aside.article-sidebar a:hover {
  color: var(--interactive-color);
  text-decoration: underline;
}

.article-content {
  min-width: 0;
}

.article-content h2 {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
  margin-top: 2.5rem;
}

.article-content p {
  max-width: 72ch;
  margin-bottom: 1.25rem;
}

.pull-quote {
  margin: 2rem 0;
  padding: 1.5rem 2rem;
  background-color: var(--muted-bg);
  border-left: 4px solid var(--accent-color);
  font-size: 1.15rem;
  font-style: italic;
  color: var(--text-primary);
}
.pull-quote cite {
  display: block;
  font-size: 0.85rem;
  font-style: normal;
  color: var(--text-secondary);
  margin-top: 0.5rem;
}

.callout-box {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--interactive-color);
  padding: 1.25rem 1.5rem;
  margin: 1.75rem 0;
  border-radius: var(--radius-sm);
}
.callout-box h4 {
  margin-top: 0;
  margin-bottom: 0.5rem;
  color: var(--interactive-color);
}

.checklist-box {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: 1.5rem;
  margin: 2rem 0;
  border-radius: var(--radius-sm);
}
.checklist-box h3 {
  margin-top: 0;
  margin-bottom: 1rem;
}
.checklist-items {
  list-style: none;
  padding: 0;
  margin: 0;
}
.checklist-items li {
  padding: 0.5rem 0;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.95rem;
  border-bottom: 1px dashed var(--border-color);
}
.checklist-items li:last-child {
  border-bottom: none;
}
.check-icon {
  color: var(--accent-color);
  font-weight: bold;
  flex-shrink: 0;
}

/* Comparison Table */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  margin: 2rem 0;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background-color: var(--surface-color);
}
table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}
th, td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
}
th {
  background-color: var(--muted-bg);
  font-weight: 600;
  color: var(--text-primary);
}
tr:last-child td {
  border-bottom: none;
}

/* Conversion Bridge Block (Блок-міст) */
.conversion-bridge {
  margin-top: 4rem;
  padding: 2.5rem;
  background-color: var(--muted-bg);
  border: 2px solid var(--border-color);
  border-top: 4px solid var(--accent-color);
  border-radius: var(--radius-sm);
}
.conversion-bridge h3 {
  font-size: 1.4rem;
  margin-top: 0;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}
.conversion-bridge p {
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}
.bridge-cta-wrap {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--accent-color);
  color: #FFFFFF !important;
  font-weight: 600;
  font-size: 1.05rem;
  padding: 0.85rem 2rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  min-height: 48px;
  border: none;
  cursor: pointer;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}
.btn-primary:hover {
  background-color: var(--interactive-color);
  transform: translateY(-1px);
}
.bridge-note {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Single Asset Specific Container */
.offer-product-visual-wrap {
  position: relative;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background-color: var(--surface-color);
}
.offer-product-visual-wrap img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  aspect-ratio: 4/3;
}
.visual-caption {
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  background-color: var(--surface-color);
  border-top: 1px solid var(--border-color);
}

/* Order Page Specifics */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin: 2rem 0;
}
.pricing-card {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  position: relative;
  cursor: pointer;
}
.pricing-card.featured {
  border: 2px solid var(--accent-color);
  background-color: #FFFDF9;
}
.pricing-badge {
  position: absolute;
  top: -12px;
  right: 1.5rem;
  background-color: var(--accent-color);
  color: #FFFFFF;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
}
.price-val {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 1rem 0 0.5rem 0;
}
.price-unit {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Lead Form */
.order-form-container {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 2rem;
  margin-top: 2rem;
}
.form-group {
  margin-bottom: 1.25rem;
}
.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--text-primary);
}
.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 1rem;
  background-color: var(--bg-color);
  color: var(--text-primary);
  min-height: 44px;
}
.form-control:focus {
  outline: none;
  border-color: var(--accent-color);
  background-color: #FFFFFF;
}
.form-help {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}
.error-msg {
  color: #B91C1C;
  font-size: 0.8rem;
  margin-top: 0.25rem;
  display: none;
}

/* FAQ Accordion */
details.faq-item {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  padding: 1.25rem 1.5rem;
}
details.faq-item summary {
  font-weight: 600;
  font-size: 1.05rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}
details.faq-item summary::-webkit-details-marker {
  display: none;
}
details.faq-item summary::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--accent-color);
  line-height: 1;
}
details.faq-item[open] summary::after {
  content: '−';
}
details.faq-item p {
  margin-top: 1rem;
  margin-bottom: 0;
  color: var(--text-secondary);
}

/* Footer Navigation Heavy */
footer {
  width: 100%;
  background-color: #27221E;
  color: #FAF6F0;
  padding: var(--spacing-2xl) 1.5rem 2rem 1.5rem;
  border-top: 3px solid var(--accent-color);
}
footer a {
  color: #D6CEC5;
  text-decoration: none;
}
footer a:hover {
  color: #FFFFFF;
  text-decoration: underline;
}
.footer-inner {
  max-width: var(--container-max);
  margin: 0 auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: var(--spacing-2xl);
}
.footer-brand h3 {
  color: #FAF6F0;
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}
.footer-brand p {
  color: #B8AFA7;
  font-size: 0.9rem;
  line-height: 1.5;
}
.footer-col h4 {
  color: #FAF6F0;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid #3E3731;
  padding-bottom: 0.5rem;
}
.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-col li {
  margin-bottom: 0.65rem;
}
.footer-col a {
  font-size: 0.875rem;
}
.footer-bottom {
  border-top: 1px solid #3E3731;
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
  color: #9E958D;
}
.footer-legal-links {
  display: flex;
  gap: 1.5rem;
}

/* Responsive Behavior */
@media (max-width: 1024px) {
  .grid-12 {
    grid-template-columns: repeat(8, 1fr);
  }
  .col-12 { grid-column: span 8; }
  .col-8 { grid-column: span 8; }
  .col-6 { grid-column: span 4; }
  .col-4 { grid-column: span 4; }
  .col-3 { grid-column: span 4; }
  
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .article-layout {
    grid-template-columns: 1fr;
  }
  aside.article-sidebar {
    position: static;
    margin-bottom: 2rem;
  }
}

@media (max-width: 768px) {
  header {
    padding: 1.25rem 1rem;
  }
  .brand-title {
    font-size: 1.75rem;
  }
  .mobile-toggle {
    display: inline-flex;
  }
  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 0.75rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
  }
  .nav-links.is-open {
    display: flex;
  }
  section {
    padding: var(--spacing-xl) 1rem;
  }
  article {
    padding: var(--spacing-lg) 1rem;
  }
  .grid-12 {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
  .col-12, .col-8, .col-6, .col-4, .col-3 {
    grid-column: span 1;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .conversion-bridge {
    padding: 1.5rem;
  }
  .bridge-cta-wrap {
    flex-direction: column;
    align-items: stretch;
  }
  .btn-primary {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}