/* ==========================================================================
   Design DNA: D-00FD5A-00 | Iceeye (iceeye.info)
   Archetype: Archetype Content Sales Funnel
   Layout: Layout Dense Reference
   Navigation: Nav Sticky Compact
   Hero: Hero Text First
   Typography: Type Compact Reference
   Color: Color Soft Clay
   Grid: Grid 8 Centered
   Card: Cards Minimal List
   Section: Sections Longform Flow
   CTA: Cta Contained
   Footer: Footer Compact
   Density: Density Dense
   ========================================================================== */

:root {
  /* Color Palette - Color Soft Clay */
  --bg-color: #F9F6F5;
  --surface-color: #FFFFFF;
  --text-primary: #3B2A27;
  --text-secondary: #7A6865;
  --accent-color: #EC4899;
  --border-color: #EADFD8;
  --muted-bg: #F3EAE8;
  --interactive-state: #DB2777;

  /* Typography - Type Compact Reference */
  --font-sans: 'SF Pro Text', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-serif: ui-serif, Georgia, serif;
  --font-mono: ui-monospace, 'SFMono-Regular', Menlo, Monaco, Consolas, monospace;

  /* Spacing Tokens (Dense Reference) */
  --space-2xs: 4px;
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* Layout Widths */
  --container-max-width: 1160px;
  --reading-max-width: 72ch;
}

/* Bulletproof Global Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

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

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.875rem; /* 14px equivalent per spec but minimum 16px rendered on body text nodes */
  line-height: 1.5;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

h1 {
  font-size: 2rem;
  line-height: 1.25;
}

h2 {
  font-size: 1.5rem;
  line-height: 1.25;
}

h3 {
  font-size: 1.25rem;
  line-height: 1.3;
}

h4 {
  font-size: 1.05rem;
  line-height: 1.35;
}

p {
  font-size: 1rem;
  line-height: 1.55;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  max-width: var(--reading-max-width);
}

p.dense-text {
  font-size: 0.875rem;
  line-height: 1.45;
}

a {
  color: var(--text-primary);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 0.15s ease, text-decoration-color 0.15s ease;
}

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

ul, ol {
  margin-bottom: var(--space-md);
  padding-left: var(--space-lg);
  max-width: var(--reading-max-width);
}

li {
  font-size: 1rem;
  line-height: 1.55;
  margin-bottom: var(--space-xs);
  color: var(--text-primary);
}

img, table, video, iframe, canvas {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Accessibility Skip Link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 10px;
  background: var(--text-primary);
  color: #fff;
  padding: 8px 16px;
  z-index: 9999;
  text-decoration: none;
  font-weight: 600;
  border-radius: 4px;
}
.skip-link:focus {
  top: 10px;
}

:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

/* ==========================================================================
   Semantic Layout Elements: header, nav, main, footer, article, section
   ========================================================================== */

header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(249, 246, 245, 0.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-color);
  width: 100%;
  transition: all 0.2s ease;
}

header.scrolled {
  background-color: rgba(255, 255, 255, 0.98);
  box-shadow: 0 1px 3px rgba(59, 42, 39, 0.05);
}

.header-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  height: 54px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.brand-logo svg {
  width: 24px;
  height: 24px;
  fill: var(--accent-color);
}

.brand-badge {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: var(--muted-bg);
  border: 1px solid var(--border-color);
  padding: 2px 6px;
  border-radius: 2px;
  color: var(--text-secondary);
}

nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-links a {
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 6px 4px;
  position: relative;
}

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

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--accent-color);
}

/* Nav compact toggle */
.nav-toggle-btn {
  display: none;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 6px 10px;
  cursor: pointer;
  color: var(--text-primary);
  font-size: 0.85rem;
  align-items: center;
  gap: 6px;
}

/* Header Action CTA Button */
.header-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--accent-color);
  color: #FFFFFF !important;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 4px;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 0.15s ease, transform 0.15s ease;
  min-height: 38px;
  min-width: 44px;
}

.header-cta-btn:hover {
  background-color: var(--interactive-state);
}

/* Sections Longform Flow */
section {
  padding: var(--space-2xl) var(--space-md);
  border-bottom: 1px solid var(--border-color);
  position: relative;
}

section:last-of-type {
  border-bottom: none;
}

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

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

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

/* Hero Section (Hero Text First & Dense Reference) */
.hero-text-first {
  padding: var(--space-3xl) var(--space-md) var(--space-2xl);
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-color);
}

.hero-meta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
  padding-bottom: var(--space-md);
  margin-bottom: var(--space-md);
  border-bottom: 1px solid var(--border-color);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.hero-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.hero-badge-live {
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: #10B981;
  border-radius: 50%;
}

.hero-headline {
  font-size: 2.25rem;
  line-height: 1.15;
  font-weight: 700;
  max-width: 950px;
  margin-bottom: var(--space-md);
  letter-spacing: -0.025em;
}

.hero-subhead {
  font-size: 1.125rem;
  line-height: 1.5;
  color: var(--text-secondary);
  max-width: 800px;
  margin-bottom: var(--space-lg);
}

.hero-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border-color);
}

.stat-box {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: var(--space-md);
  border-radius: 2px;
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.1;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  line-height: 1.35;
}

/* ==========================================================================
   Grids & Cards (Grid 8 Centered / Cards Minimal List)
   ========================================================================== */

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.card {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 2px;
  padding: var(--space-lg);
  transition: border-color 0.15s ease;
  display: flex;
  flex-direction: column;
}

.card:hover {
  border-color: var(--text-secondary);
}

.card-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
}

.card h3 {
  margin-bottom: var(--space-xs);
  font-size: 1.15rem;
}

.card p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.45;
  margin-bottom: var(--space-md);
  flex-grow: 1;
}

.card-footer-link {
  font-size: 0.8rem;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* Topic Index Directory & Reference Tables (Layout Dense Reference) */
.ref-table-wrapper {
  overflow-x: auto;
  margin: var(--space-md) 0 var(--space-xl);
  border: 1px solid var(--border-color);
  background: var(--surface-color);
}

.ref-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.85rem;
}

.ref-table th {
  background-color: var(--muted-bg);
  padding: 10px 14px;
  font-weight: 600;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-color);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.ref-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
  vertical-align: top;
}

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

.ref-table tr:hover td {
  background-color: var(--bg-color);
}

/* Callout & Pullquote components */
.callout {
  background-color: var(--muted-bg);
  border-left: 3px solid var(--accent-color);
  padding: var(--space-md) var(--space-lg);
  margin: var(--space-lg) 0;
  border-radius: 0 2px 2px 0;
}

.callout h4 {
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.callout p {
  margin-bottom: 0;
  font-size: 0.875rem;
}

.pullquote {
  border-left: 2px solid var(--border-color);
  padding: var(--space-md) var(--space-lg);
  margin: var(--space-lg) 0;
  font-style: italic;
  font-size: 1.1rem;
  color: var(--text-primary);
}

/* Table of Contents */
.toc-box {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: var(--space-md);
  margin-bottom: var(--space-xl);
  border-radius: 2px;
}

.toc-box h3 {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
}

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

.toc-list li {
  margin-bottom: 6px;
  font-size: 0.85rem;
}

.toc-list a {
  text-decoration: none;
  color: var(--text-primary);
}

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

/* ==========================================================================
   Article Step By Step System
   ========================================================================== */

article {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-md);
}

.article-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.article-content {
  max-width: var(--reading-max-width);
}

.step-block {
  display: flex;
  gap: var(--space-md);
  margin: var(--space-lg) 0;
  padding: var(--space-md);
  background: var(--surface-color);
  border: 1px solid var(--border-color);
}

.step-num {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent-color);
  line-height: 1;
}

/* Practical Advice Checklist (Section 6 on articles) */
.checklist-card {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: var(--space-lg);
  margin: var(--space-xl) 0;
}

.checklist-card h3 {
  font-size: 1.15rem;
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  gap: 8px;
}

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

.checklist-items li {
  position: relative;
  padding-left: 28px;
  margin-bottom: var(--space-sm);
  font-size: 0.9rem;
}

.checklist-items li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: #10B981;
  font-weight: bold;
}

/* ==========================================================================
   Conversion Bridge Block (Блок-міст)
   ========================================================================== */

.conversion-bridge-block {
  background-color: var(--surface-color);
  border: 2px solid var(--accent-color);
  padding: var(--space-xl);
  margin: var(--space-2xl) 0;
  border-radius: 2px;
  position: relative;
}

.bridge-tag {
  display: inline-block;
  background-color: var(--accent-color);
  color: #FFFFFF;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  border-radius: 2px;
  margin-bottom: var(--space-sm);
}

.conversion-bridge-block h3 {
  font-size: 1.35rem;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.conversion-bridge-block p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: var(--space-md);
  max-width: 100%;
}

.bridge-action-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background-color: var(--accent-color);
  color: #FFFFFF !important;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: 3px;
  text-decoration: none;
  min-height: 44px;
  transition: background-color 0.15s ease, transform 0.1s ease;
  border: none;
  cursor: pointer;
}

.cta-button:hover {
  background-color: var(--interactive-state);
}

.cta-secondary-note {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   Homepage Sales Block & Single Asset Styling
   ========================================================================== */

.sales-offer-module {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: var(--space-xl);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.sales-visual-wrap {
  position: relative;
  background: var(--muted-bg);
  border: 1px solid var(--border-color);
  overflow: hidden;
  border-radius: 2px;
}

.sales-visual-wrap img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  display: block;
}

.sales-badge-overlay {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(59, 42, 39, 0.9);
  color: #fff;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 8px;
  border-radius: 2px;
}

/* ==========================================================================
   Order Page Components (Pricing, Guarantees, Checkout Form)
   ========================================================================== */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin: var(--space-xl) 0;
}

.pricing-card {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: var(--space-lg);
  border-radius: 2px;
  position: relative;
  display: flex;
  flex-direction: column;
}

.pricing-card.featured-tier {
  border: 2px solid var(--accent-color);
  box-shadow: 0 4px 12px rgba(236, 72, 153, 0.08);
}

.tier-popular-tag {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent-color);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 3px 10px;
  border-radius: 2px;
  white-space: nowrap;
}

.pricing-card h3 {
  font-size: 1.15rem;
  margin-bottom: var(--space-2xs);
}

.tier-duration {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.tier-price-wrap {
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--border-color);
}

.tier-price-current {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}

.tier-price-old {
  font-size: 0.9rem;
  text-decoration: line-through;
  color: var(--text-secondary);
  margin-left: 6px;
}

.tier-features {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-lg) 0;
  flex-grow: 1;
}

.tier-features li {
  font-size: 0.85rem;
  margin-bottom: 8px;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.tier-features li::before {
  content: '✓';
  color: var(--accent-color);
  font-weight: 700;
}

.tier-select-btn {
  width: 100%;
  padding: 10px;
  font-size: 0.85rem;
  font-weight: 600;
  background: var(--muted-bg);
  border: 1px solid var(--border-color);
  border-radius: 2px;
  cursor: pointer;
  color: var(--text-primary);
  transition: all 0.15s ease;
  min-height: 44px;
}

.tier-select-btn:hover,
.pricing-card.selected .tier-select-btn {
  background: var(--accent-color);
  color: #fff;
  border-color: var(--accent-color);
}

/* Guarantees Box */
.guarantees-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin: var(--space-lg) 0;
}

.guarantee-item {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: var(--space-md);
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.guarantee-icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  fill: var(--accent-color);
}

.guarantee-item h4 {
  font-size: 0.9rem;
  margin-bottom: 2px;
}

.guarantee-item p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 0;
  line-height: 1.35;
}

/* Order Form */
.order-form-container {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: var(--space-xl);
  max-width: 680px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 12px 14px;
  font-size: 0.95rem;
  font-family: var(--font-sans);
  border: 1px solid var(--border-color);
  background-color: var(--bg-color);
  color: var(--text-primary);
  border-radius: 2px;
  transition: border-color 0.15s ease;
  min-height: 44px;
}

.form-control:focus {
  border-color: var(--accent-color);
  background-color: #FFFFFF;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.form-consent {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
  margin: var(--space-md) 0 var(--space-lg);
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.form-consent input[type="checkbox"] {
  margin-top: 3px;
  width: 16px;
  height: 16px;
  accent-color: var(--accent-color);
}

.form-error-msg {
  color: #DC2626;
  font-size: 0.75rem;
  margin-top: 4px;
  display: none;
}

.form-error-msg.visible {
  display: block;
}

/* FAQ Accordion Details */
details.faq-item {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  margin-bottom: var(--space-xs);
  border-radius: 2px;
  transition: border-color 0.15s ease;
}

details.faq-item[open] {
  border-color: var(--text-secondary);
}

summary.faq-question {
  padding: 14px 18px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

summary.faq-question::-webkit-details-marker {
  display: none;
}

summary.faq-question::after {
  content: '+';
  font-size: 1.25rem;
  line-height: 1;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

details.faq-item[open] summary.faq-question::after {
  content: '−';
}

.faq-answer {
  padding: 0 18px 16px 18px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
  border-top: 1px solid var(--border-color);
  padding-top: 12px;
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   Thank You Page Components
   ========================================================================== */

.thank-you-card {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: var(--space-xl);
  max-width: 720px;
  margin: var(--space-xl) auto;
  text-align: left;
}

.order-badge-id {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  background: var(--muted-bg);
  border: 1px solid var(--border-color);
  padding: 6px 12px;
  border-radius: 2px;
  margin-bottom: var(--space-md);
}

.steps-timeline {
  list-style: none;
  padding: 0;
  margin: var(--space-lg) 0;
  border-left: 2px solid var(--border-color);
  padding-left: var(--space-md);
}

.timeline-step {
  margin-bottom: var(--space-lg);
  position: relative;
}

.timeline-step::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-md) - 5px);
  top: 4px;
  width: 8px;
  height: 8px;
  background: var(--accent-color);
  border-radius: 50%;
}

.timeline-step h4 {
  font-size: 0.95rem;
  margin-bottom: 2px;
}

.timeline-step p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0;
}

/* ==========================================================================
   Footer Compact Specification
   ========================================================================== */

footer {
  background-color: var(--surface-color);
  border-top: 1px solid var(--border-color);
  padding: var(--space-lg) var(--space-md);
  font-size: 0.8rem;
  color: var(--text-secondary);
  width: 100%;
}

.footer-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-brand-info {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.footer-nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  list-style: none;
  padding: 0;
  margin: 0;
  flex-wrap: wrap;
}

.footer-nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.8rem;
}

.footer-nav-links a:hover {
  color: var(--text-primary);
  text-decoration: underline;
}

.footer-legal-note {
  width: 100%;
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-color);
  font-size: 0.75rem;
  line-height: 1.4;
  color: var(--text-secondary);
}

/* ==========================================================================
   Responsive Breakpoints & Mobile Execution
   ========================================================================== */

@media (max-width: 1024px) {
  .hero-stats-row {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  /* Mobile header */
  .nav-toggle-btn {
    display: inline-flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 54px;
    left: 0;
    right: 0;
    background: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    padding: var(--space-md);
    gap: var(--space-xs);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  }

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

  .nav-links a {
    padding: 10px 0;
    width: 100%;
    font-size: 0.95rem;
    border-bottom: 1px solid var(--border-color);
  }

  .header-cta-btn {
    font-size: 0.8rem;
    padding: 6px 12px;
  }

  /* Grids collapse to single column */
  .grid-2, .grid-3, .grid-4, .pricing-grid, .guarantees-grid {
    grid-template-columns: 1fr;
  }

  .sales-offer-module {
    grid-template-columns: 1fr;
    padding: var(--space-md);
  }

  .sales-visual-wrap img {
    height: 240px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .hero-headline {
    font-size: 1.75rem;
  }

  .hero-stats-row {
    grid-template-columns: 1fr;
  }

  section {
    padding: var(--space-xl) var(--space-md);
  }

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

  .footer-nav-links {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

@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;
  }
}

/* ==========================================================================
   Language Switcher & Accessibility Toolbar Styles
   ========================================================================== */

.header-tools {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.a11y-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: var(--surface-color);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 6px 10px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  min-height: 38px;
  transition: all 0.2s ease;
}

.a11y-toggle-btn:hover {
  background-color: var(--muted-bg);
  border-color: var(--accent-color);
}

.a11y-toggle-btn svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  overflow: hidden;
  height: 38px;
}

.lang-btn {
  padding: 6px 10px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  transition: all 0.2s ease;
}

.lang-btn:hover {
  color: var(--text-primary);
  background-color: var(--muted-bg);
}

.lang-btn.active {
  background-color: var(--text-primary);
  color: #FFFFFF;
}

/* Accessibility Control Panel */
.a11y-panel {
  display: none;
  background-color: #FFFFFF;
  border-bottom: 2px solid var(--accent-color);
  padding: 12px 16px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  position: relative;
  z-index: 999;
}

.a11y-panel.is-open {
  display: block;
}

.a11y-panel-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.a11y-group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.a11y-group-title {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-right: 4px;
}

.a11y-ctrl-btn {
  background-color: #F3EAE8;
  border: 1px solid #EADFD8;
  color: #3B2A27;
  padding: 6px 12px;
  border-radius: 4px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  min-height: 36px;
  transition: all 0.15s ease;
}

.a11y-ctrl-btn:hover {
  background-color: #EADFD8;
}

.a11y-ctrl-btn.active {
  background-color: #3B2A27;
  color: #FFFFFF;
  border-color: #3B2A27;
}

.a11y-close-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 4px 8px;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: bold;
}

/* ==========================================================================
   Visually Impaired Modes (Режимы для слабовидящих)
   ========================================================================== */

/* Font Size Scales */
body.a11y-fs-lg {
  font-size: 1.125rem !important; /* 18px */
}
body.a11y-fs-lg h1 { font-size: 2.35rem !important; }
body.a11y-fs-lg h2 { font-size: 1.85rem !important; }
body.a11y-fs-lg h3 { font-size: 1.45rem !important; }
body.a11y-fs-lg p, body.a11y-fs-lg li, body.a11y-fs-lg td, body.a11y-fs-lg th { font-size: 1.15rem !important; line-height: 1.7 !important; }

body.a11y-fs-xl {
  font-size: 1.35rem !important; /* 21.6px */
}
body.a11y-fs-xl h1 { font-size: 2.75rem !important; }
body.a11y-fs-xl h2 { font-size: 2.15rem !important; }
body.a11y-fs-xl h3 { font-size: 1.75rem !important; }
body.a11y-fs-xl p, body.a11y-fs-xl li, body.a11y-fs-xl td, body.a11y-fs-xl th { font-size: 1.35rem !important; line-height: 1.8 !important; }

/* Letter Spacing */
body.a11y-spacing-wide {
  letter-spacing: 0.12em !important;
  word-spacing: 0.2em !important;
}
body.a11y-spacing-wide * {
  letter-spacing: inherit !important;
  word-spacing: inherit !important;
}

/* Image Hiding Mode */
body.a11y-hide-images img,
body.a11y-hide-images .sales-visual-wrap {
  display: none !important;
}
body.a11y-hide-images .sales-offer-module {
  grid-template-columns: 1fr !important;
}

/* High Contrast Themes */

/* 1. Black on White (Черным по белому) */
body.a11y-theme-contrast {
  --bg-color: #FFFFFF !important;
  --surface-color: #FFFFFF !important;
  --text-primary: #000000 !important;
  --text-secondary: #000000 !important;
  --border-color: #000000 !important;
  --muted-bg: #FFFFFF !important;
  --accent-color: #000000 !important;
  --interactive-state: #000000 !important;
  background-color: #FFFFFF !important;
  color: #000000 !important;
}
body.a11y-theme-contrast * {
  border-color: #000000 !important;
  box-shadow: none !important;
}
body.a11y-theme-contrast a {
  color: #000000 !important;
  text-decoration: underline !important;
  text-decoration-thickness: 2px !important;
}
body.a11y-theme-contrast .cta-button,
body.a11y-theme-contrast .header-cta-btn,
body.a11y-theme-contrast .tier-select-btn {
  background-color: #000000 !important;
  color: #FFFFFF !important;
  border: 2px solid #000000 !important;
}
body.a11y-theme-contrast .bridge-tag,
body.a11y-theme-contrast .tier-popular-tag {
  background-color: #000000 !important;
  color: #FFFFFF !important;
}

/* 2. White on Black (Белым по черному / Инверсия) */
body.a11y-theme-inverted {
  --bg-color: #000000 !important;
  --surface-color: #121212 !important;
  --text-primary: #FFFFFF !important;
  --text-secondary: #E0E0E0 !important;
  --border-color: #FFFFFF !important;
  --muted-bg: #1A1A1A !important;
  --accent-color: #00FFCC !important;
  --interactive-state: #00FFFF !important;
  background-color: #000000 !important;
  color: #FFFFFF !important;
}
body.a11y-theme-inverted header,
body.a11y-theme-inverted .a11y-panel,
body.a11y-theme-inverted footer {
  background-color: #000000 !important;
  border-color: #FFFFFF !important;
}
body.a11y-theme-inverted * {
  border-color: #FFFFFF !important;
}
body.a11y-theme-inverted p,
body.a11y-theme-inverted li,
body.a11y-theme-inverted td,
body.a11y-theme-inverted th,
body.a11y-theme-inverted h1,
body.a11y-theme-inverted h2,
body.a11y-theme-inverted h3,
body.a11y-theme-inverted h4 {
  color: #FFFFFF !important;
}
body.a11y-theme-inverted a {
  color: #00FFCC !important;
}
body.a11y-theme-inverted .cta-button,
body.a11y-theme-inverted .header-cta-btn {
  background-color: #FFFFFF !important;
  color: #000000 !important;
}

/* 3. Blue on Dark Blue (Темно-синяя схема) */
body.a11y-theme-darkblue {
  --bg-color: #0A192F !important;
  --surface-color: #112240 !important;
  --text-primary: #E6F1FF !important;
  --text-secondary: #8892B0 !important;
  --border-color: #233554 !important;
  --muted-bg: #1E3A8A !important;
  --accent-color: #64FFDA !important;
  --interactive-state: #52E3C2 !important;
  background-color: #0A192F !important;
  color: #E6F1FF !important;
}
body.a11y-theme-darkblue header,
body.a11y-theme-darkblue .a11y-panel,
body.a11y-theme-darkblue footer {
  background-color: #0A192F !important;
}
body.a11y-theme-darkblue p,
body.a11y-theme-darkblue li,
body.a11y-theme-darkblue td,
body.a11y-theme-darkblue h1,
body.a11y-theme-darkblue h2,
body.a11y-theme-darkblue h3,
body.a11y-theme-darkblue h4 {
  color: #E6F1FF !important;
}
body.a11y-theme-darkblue a {
  color: #64FFDA !important;
}
body.a11y-theme-darkblue .cta-button,
body.a11y-theme-darkblue .header-cta-btn {
  background-color: #64FFDA !important;
  color: #0A192F !important;
}

/* Responsive adjustment for header tools */
@media (max-width: 768px) {
  .header-tools {
    gap: 4px;
  }
  .a11y-toggle-btn span {
    display: none;
  }
  .a11y-panel-container {
    flex-direction: column;
    align-items: flex-start;
  }
}

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

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

.certifications-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto var(--space-xl);
}

.certifications-header h2 {
  font-size: 1.75rem;
  margin-bottom: var(--space-xs);
  color: var(--text-primary);
}

.certifications-header p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin: 0 auto;
}

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

.cert-card {
  background-color: var(--bg-color);
  border: 1px solid #E0E0E0;
  border-radius: 6px;
  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 {
  border-color: #BDBDBD;
  box-shadow: 0 4px 14px rgba(59, 42, 39, 0.05);
}

.cert-badge-icon {
  width: 76px;
  height: 76px;
  margin-bottom: 18px;
  color: #555555;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cert-badge-icon svg {
  width: 100%;
  height: 100%;
}

.cert-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.cert-card p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.55;
  margin: 0;
  max-width: 100%;
}

@media (max-width: 768px) {
  .certifications-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  .cert-card {
    padding: 24px 20px;
  }
}

/* Accessibility themes integration for cert-card */
body.a11y-theme-contrast .cert-card {
  background-color: #FFFFFF !important;
  border: 2px solid #000000 !important;
}
body.a11y-theme-contrast .cert-badge-icon {
  color: #000000 !important;
}

body.a11y-theme-inverted .cert-card {
  background-color: #121212 !important;
  border: 1px solid #FFFFFF !important;
}
body.a11y-theme-inverted .cert-badge-icon {
  color: #00FFCC !important;
}
body.a11y-theme-inverted .cert-card h3,
body.a11y-theme-inverted .cert-card p {
  color: #FFFFFF !important;
}

body.a11y-theme-darkblue .cert-card {
  background-color: #112240 !important;
  border: 1px solid #233554 !important;
}
body.a11y-theme-darkblue .cert-badge-icon {
  color: #64FFDA !important;
}
body.a11y-theme-darkblue .cert-card h3 {
  color: #E6F1FF !important;
}
body.a11y-theme-darkblue .cert-card p {
  color: #8892B0 !important;
}

/* ==========================================================================
   Form Feedback Banner Styles
   ========================================================================== */

.form-feedback-banner {
  padding: 12px 16px;
  border-radius: 4px;
  font-size: 0.9rem;
  line-height: 1.4;
  margin-bottom: var(--space-md);
  display: none;
}

.form-feedback-banner.visible {
  display: block;
}

.form-feedback-banner.error {
  background-color: #FEE2E2;
  border: 1px solid #F87171;
  color: #991B1B;
}

.form-feedback-banner.success {
  background-color: #D1FAE5;
  border: 1px solid #34D399;
  color: #065F46;
}

.btn-submitting {
  opacity: 0.75;
  cursor: wait !important;
  pointer-events: none;
}