/* Design DNA: D-0337F7-18
   Archetype: Archetype Content Sales Funnel
   Layout: Layout Zoned Sections
   Nav: Nav Sticky Compact
   Hero: Hero Statistical
   Typography: Type Classical Serif
   Color: Color Muted Lavender
   Grid: Grid Wide 12
   Cards: Cards Bordered
   Sections: Sections Editorial Zones
   Footer: Footer Information Dense
*/

:root {
  /* Typography Tokens */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-serif: 'Playfair Display', 'Merriweather', Georgia, serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Color Palette - Color Muted Lavender */
  --bg-color: #F8F7FA;
  --surface-color: #FFFFFF;
  --text-primary: #2B2733;
  --text-secondary: #6B6575;
  --accent-color: #8B5CF6;
  --border-color: #E3DFED;
  --bg-muted: #F0ECF5;
  --interactive-color: #7C3AED;
  --interactive-hover: #6D28D9;
  --surface-tint: #FAF8FD;

  /* Spacing Tokens */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4.5rem;

  /* Layout */
  --max-width: 1200px;
  --content-max-width: 820px;
  --border-radius: 4px; /* Sharp corners preferred */
  --transition-speed: 0.2s ease-in-out;
}

/* Reset & Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  overflow-x: hidden;
  width: 100%;
}

body {
  width: 100%;
  overflow-x: hidden;
  font-family: var(--font-serif);
  font-size: 1.125rem;
  line-height: 1.7;
  font-weight: 400;
  color: var(--text-primary);
  background-color: var(--bg-color);
  -webkit-font-smoothing: antialiased;
}

/* Accessibility Skip Link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--interactive-color);
  color: #FFFFFF;
  padding: 0.75rem 1.5rem;
  z-index: 9999;
  font-family: var(--font-sans);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--border-radius);
  transition: top 0.2s;
}

.skip-link:focus {
  top: 1rem;
  outline: 3px solid #000;
}

/* Semantic Layout Rules styled directly on tags as required */
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-color);
  transition: all var(--transition-speed);
}

header.nav-scrolled {
  box-shadow: 0 4px 12px rgba(43, 39, 51, 0.04);
}

nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.85rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--font-sans);
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.brand-icon {
  width: 26px;
  height: 26px;
  color: var(--accent-color);
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 0.35rem 0.5rem;
  border-radius: var(--border-radius);
  transition: color var(--transition-speed), background-color var(--transition-speed);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--interactive-color);
}

.nav-links a.active {
  font-weight: 600;
}

.nav-cta-btn {
  background-color: var(--accent-color) !important;
  color: #FFFFFF !important;
  padding: 0.55rem 1.15rem !important;
  border-radius: var(--border-radius);
  font-weight: 600 !important;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: background-color var(--transition-speed), transform var(--transition-speed);
}

.nav-cta-btn:hover {
  background-color: var(--interactive-color) !important;
  color: #FFFFFF !important;
  transform: translateY(-1px);
}

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-color);
  padding: 0.45rem 0.65rem;
  border-radius: var(--border-radius);
  cursor: pointer;
  color: var(--text-primary);
}

main {
  width: 100%;
  display: block;
  min-height: 70vh;
}

/* Sections - Editorial Zones */
section {
  width: 100%;
  padding: var(--spacing-3xl) 1.25rem;
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-color);
}

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

section.zone-muted {
  background-color: var(--bg-muted);
}

section.zone-surface {
  background-color: var(--surface-color);
}

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

.section-container.narrow {
  max-width: var(--content-max-width);
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  color: var(--text-primary);
  font-weight: 400;
  margin-bottom: 1rem;
}

h1 {
  font-size: 3.25rem;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 2.5rem;
  line-height: 1.15;
  letter-spacing: -0.015em;
  margin-top: 1rem;
}

h3 {
  font-size: 1.75rem;
  line-height: 1.2;
}

h4 {
  font-size: 1.35rem;
  line-height: 1.3;
}

p {
  margin-bottom: 1.25rem;
  color: var(--text-primary);
}

p.lead {
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

p.eyebrow {
  font-family: var(--font-sans);
  text-transform: uppercase;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent-color);
  margin-bottom: 0.5rem;
}

a {
  color: var(--interactive-color);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--transition-speed);
}

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

/* Hero Statistical (Design DNA Module) */
.hero-statistical-wrapper {
  padding: 4rem 1.25rem 3rem;
  border-bottom: 1px solid var(--border-color);
  background-color: var(--surface-color);
}

.hero-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.stat-item {
  border: 1px solid var(--border-color);
  background-color: var(--surface-tint);
  padding: 2rem 1.5rem;
  border-radius: var(--border-radius);
  text-align: center;
}

.stat-number {
  font-family: var(--font-serif);
  font-size: 3.5rem;
  line-height: 1.05;
  color: var(--interactive-color);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  color: var(--text-secondary);
  font-weight: 600;
}

.hero-intro {
  max-width: var(--content-max-width);
  margin: 0 auto;
  text-align: center;
}

/* Standard Page Title Header */
.page-title-banner {
  background-color: var(--surface-color);
  padding: 3rem 1.25rem 2.5rem;
  border-bottom: 1px solid var(--border-color);
}

.breadcrumbs {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.breadcrumbs a {
  text-decoration: none;
  color: var(--text-secondary);
}

.breadcrumbs a:hover {
  color: var(--interactive-color);
}

.breadcrumbs span[aria-current="page"] {
  color: var(--text-primary);
  font-weight: 600;
}

.article-meta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

/* Card System - Cards Bordered */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.card-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin: 2rem 0;
}

.card-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin: 2rem 0;
}

.card {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: 1.75rem;
  border-radius: var(--border-radius);
  transition: transform var(--transition-speed), box-shadow var(--transition-speed);
  display: flex;
  flex-direction: column;
}

.card:hover {
  box-shadow: 0 6px 18px rgba(139, 92, 246, 0.08);
}

.card h3, .card h4 {
  margin-bottom: 0.75rem;
}

.card p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.6;
  flex-grow: 1;
}

.card-tag {
  font-family: var(--font-sans);
  align-self: flex-start;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent-color);
  background: var(--bg-muted);
  padding: 0.25rem 0.6rem;
  border-radius: 2px;
  margin-bottom: 1rem;
}

.card-link {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.9375rem;
  margin-top: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

/* Magazine Article Layout Components */
article {
  max-width: var(--content-max-width);
  margin: 0 auto;
}

.article-toc {
  background: var(--surface-tint);
  border: 1px solid var(--border-color);
  padding: 1.5rem;
  border-radius: var(--border-radius);
  margin: 1.75rem 0 2.5rem;
  font-family: var(--font-sans);
}

.article-toc-title {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.article-toc ol {
  padding-left: 1.25rem;
  line-height: 1.8;
  font-size: 0.9375rem;
}

.article-toc ol a {
  text-decoration: none;
}

.pull-quote {
  border-left: 3px solid var(--accent-color);
  padding: 1.25rem 1.75rem;
  margin: 2rem 0;
  background-color: var(--surface-tint);
  font-style: italic;
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--text-primary);
}

.callout-box {
  background-color: var(--bg-muted);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--accent-color);
  padding: 1.5rem;
  margin: 2rem 0;
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.callout-box h4 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.callout-box p:last-child {
  margin-bottom: 0;
}

/* Conversion Bridge Block (Блок-міст) */
.conversion-bridge-block {
  background: linear-gradient(135deg, #FFFFFF 0%, #F5F1FB 100%);
  border: 2px solid var(--accent-color);
  padding: 2.5rem 2rem;
  margin: 3.5rem 0 2rem;
  border-radius: var(--border-radius);
  box-shadow: 0 8px 24px rgba(139, 92, 246, 0.1);
  text-align: center;
}

.conversion-bridge-badge {
  display: inline-block;
  font-family: var(--font-sans);
  background: var(--accent-color);
  color: #FFFFFF;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.3rem 0.8rem;
  border-radius: 2px;
  margin-bottom: 1rem;
}

.conversion-bridge-block h3 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.conversion-bridge-block p {
  font-size: 1.125rem;
  max-width: 680px;
  margin: 0 auto 1.5rem;
  color: var(--text-secondary);
}

.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--interactive-color);
  color: #FFFFFF !important;
  text-decoration: none !important;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.125rem;
  padding: 0.95rem 2rem;
  border-radius: var(--border-radius);
  border: none;
  cursor: pointer;
  min-height: 44px;
  transition: background-color var(--transition-speed), transform var(--transition-speed);
}

.cta-button:hover {
  background-color: var(--interactive-hover);
  transform: translateY(-2px);
}

.cta-button-secondary {
  background-color: transparent;
  color: var(--interactive-color) !important;
  border: 1px solid var(--interactive-color);
}

.cta-button-secondary:hover {
  background-color: var(--bg-muted);
}

/* Checklists & Lists */
.checklist-ul {
  list-style: none;
  margin: 1.5rem 0;
}

.checklist-ul li {
  position: relative;
  padding-left: 2rem;
  margin-bottom: 0.85rem;
  line-height: 1.6;
}

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

/* Tables */
.table-wrapper {
  overflow-x: auto;
  margin: 2rem 0;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  background-color: var(--surface-color);
}

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

th {
  background-color: var(--bg-muted);
  font-weight: 700;
  color: var(--text-primary);
}

tr:last-child td {
  border-bottom: none;
}

/* Details & FAQ Accordion */
details {
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  background-color: var(--surface-color);
  margin-bottom: 1rem;
  padding: 1rem 1.25rem;
  transition: background-color var(--transition-speed);
}

details[open] {
  background-color: var(--surface-tint);
}

summary {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  cursor: pointer;
  outline: none;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

summary::after {
  content: "+";
  font-family: var(--font-sans);
  font-size: 1.5rem;
  color: var(--accent-color);
  transition: transform var(--transition-speed);
}

details[open] summary::after {
  content: "−";
}

details p {
  margin-top: 1rem;
  margin-bottom: 0;
  color: var(--text-secondary);
}

/* Interactive Checklist Tool */
.interactive-tool-box {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: 2rem;
  border-radius: var(--border-radius);
  margin: 2rem 0;
}

.check-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  font-family: var(--font-sans);
  cursor: pointer;
}

.check-item input[type="checkbox"] {
  width: 22px;
  height: 22px;
  accent-color: var(--interactive-color);
  cursor: pointer;
  margin-top: 0.2rem;
  flex-shrink: 0;
}

.score-display-box {
  background-color: var(--bg-muted);
  padding: 1.5rem;
  border-radius: var(--border-radius);
  margin-top: 1.5rem;
  text-align: center;
}

/* Order Page Layout & Components */
.order-layout-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

.product-visual-container {
  border: 1px solid var(--border-color);
  background-color: var(--surface-color);
  padding: 1.5rem;
  border-radius: var(--border-radius);
  text-align: center;
}

.product-visual-container img {
  max-width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  box-shadow: 0 4px 14px rgba(0,0,0,0.06);
}

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

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

.package-card:hover, .package-card.selected {
  border-color: var(--accent-color);
  background-color: var(--surface-tint);
}

.package-price {
  font-family: var(--font-sans);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--interactive-color);
}

.order-form {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: 2rem;
  border-radius: var(--border-radius);
  font-family: var(--font-sans);
}

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

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9375rem;
  margin-bottom: 0.4rem;
  color: var(--text-primary);
}

.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 1rem;
  font-family: var(--font-sans);
  background-color: #FAFAFD;
  transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.2);
}

.guarantee-badges {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 1.5rem;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  text-align: center;
}

.guarantee-item {
  border: 1px dashed var(--border-color);
  padding: 0.75rem 0.5rem;
  border-radius: var(--border-radius);
  background-color: var(--bg-muted);
}

/* Footer - Information Dense (Design DNA Module) */
footer {
  background-color: #1F1B26;
  color: #ECEAF2;
  padding: 4rem 1.25rem 2rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  border-top: 4px solid var(--accent-color);
}

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

.footer-dense-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-col h4 {
  color: #FFFFFF;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: 0.02em;
}

.footer-col p {
  color: #B5AFC2;
  font-size: 0.875rem;
  line-height: 1.6;
}

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

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

.footer-col a {
  color: #CFCAD9;
  text-decoration: none;
  transition: color var(--transition-speed);
}

.footer-col a:hover {
  color: #FFFFFF;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(227, 223, 237, 0.15);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  color: #8C8699;
  font-size: 0.8125rem;
}

.footer-disclaimer {
  max-width: 820px;
  margin-bottom: 1.5rem;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: #9C95AA;
}

/* Mobile Responsive */
@media (max-width: 992px) {
  .hero-stats-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .card-grid-3 {
    grid-template-columns: 1fr;
  }
  .card-grid-2 {
    grid-template-columns: 1fr;
  }
  .order-layout-grid {
    grid-template-columns: 1fr;
  }
  .footer-dense-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  h1 {
    font-size: 2.35rem;
  }
  h2 {
    font-size: 1.85rem;
  }
  h3 {
    font-size: 1.45rem;
  }

  section {
    padding: var(--spacing-2xl) 1rem;
  }

  .menu-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    align-items: stretch;
    padding: 1.25rem;
    gap: 0.75rem;
    box-shadow: 0 10px 20px rgba(0,0,0,0.06);
  }

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

  .nav-cta-btn {
    text-align: center;
    justify-content: center;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .footer-dense-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

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