/* ==========================================================================
   Antiparaportalex Design DNA D-0067FD-02 (Institutional Journal / Soft Clay)
   Color System: Soft Clay
   Typography System: Compact Reference
   Layout System: Layout Zoned Sections
   ========================================================================== */

:root {
  /* Color System - color-soft-clay */
  --color-bg: #F9F6F5;
  --color-surface: #FFFFFF;
  --color-text-primary: #3B2A27;
  --color-text-secondary: #7A6865;
  --color-accent: #EC4899;
  --color-border: #EADFD8;
  --color-bg-muted: #F3EAE8;
  --color-interactive: #DB2777;
  --color-success: #15803D;
  --color-warning: #B45309;

  /* Typography System - type-compact-reference */
  --font-sans: 'SF Pro Text', 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Sukhumvit Set', 'Thonburi', sans-serif;
  --font-serif: ui-serif, serif;
  --font-mono: ui-monospace, monospace;

  /* Spacing Tokens */
  --space-xs: 0.5rem;    /* 8px */
  --space-sm: 0.75rem;   /* 12px */
  --space-md: 1rem;      /* 16px */
  --space-lg: 1.5rem;    /* 24px */
  --space-xl: 2rem;      /* 32px */
  --space-2xl: 3rem;     /* 48px */
  --space-3xl: 4.5rem;   /* 72px */

  /* Maximum Content Widths */
  --container-max: 1200px;
  --article-max: 760px;
}

/* Base Reset & Mobile-first safety */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  overflow-x: hidden;
  width: 100%;
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Skip link for Accessibility */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--color-accent);
  color: #FFFFFF;
  padding: 0.5rem 1rem;
  z-index: 9999;
  text-decoration: none;
  font-weight: 600;
  border-radius: 4px;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 1rem;
}

/* Semantic Typography mapping */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  color: var(--color-text-primary);
  font-weight: 600;
  letter-spacing: -0.01em;
}

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

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

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

p {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text-primary);
  margin-bottom: var(--space-md);
}

a {
  color: var(--color-interactive);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s ease, background-color 0.2s ease;
}

a:hover, a:focus {
  color: #9D174D;
}

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

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

/* ==========================================================================
   Structural Semantic Elements (Strictly tag-targeted)
   ========================================================================== */

header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
}

.header-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0.875rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.brand-wrap {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  color: var(--color-text-primary);
}

.brand-logo-icon {
  width: 28px;
  height: 28px;
  display: block;
}

.brand-text {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
}

.brand-badge {
  font-size: 0.6875rem;
  background-color: var(--color-bg-muted);
  color: var(--color-text-secondary);
  padding: 0.15rem 0.45rem;
  border-radius: 3px;
  font-weight: 600;
  border: 1px solid var(--color-border);
  text-transform: uppercase;
}

nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 1rem;
}

.nav-links a {
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-primary);
  padding: 0.35rem 0.5rem;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

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

.nav-links a.active {
  font-weight: 600;
  border-bottom: 2px solid var(--color-interactive);
  border-radius: 4px 4px 0 0;
}

/* Header Action CTA */
.header-cta-btn {
  background-color: var(--color-accent);
  color: #FFFFFF !important;
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none !important;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 44px;
  transition: background-color 0.2s ease;
}

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

/* Mobile Nav Toggle */
.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--color-border);
  padding: 0.5rem;
  border-radius: 4px;
  cursor: pointer;
  min-height: 44px;
  min-width: 44px;
  align-items: center;
  justify-content: center;
}

.mobile-nav-toggle svg {
  width: 22px;
  height: 22px;
  stroke: var(--color-text-primary);
}

/* Contextual Sub-Nav Bar (nav-contextual specification) */
.subnav-contextual {
  background-color: var(--color-bg-muted);
  border-bottom: 1px solid var(--color-border);
  padding: 0.4rem 1.25rem;
  font-size: 0.8125rem;
}

.subnav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.subnav-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--color-text-secondary);
}

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

.subnav-breadcrumbs a:hover {
  text-decoration: underline;
}

.subnav-breadcrumbs span {
  color: var(--color-border);
}

.subnav-sibling-links {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  list-style: none;
}

.subnav-sibling-links a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: 500;
}

.subnav-sibling-links a:hover {
  color: var(--color-interactive);
}

/* ==========================================================================
   Main Layout & Layout Zoned Sections
   ========================================================================== */

main {
  width: 100%;
  display: block;
}

section {
  width: 100%;
  padding: var(--space-2xl) 1.25rem;
  border-bottom: 1px solid var(--color-border);
}

/* Alternating Section Backgrounds (Sections Dense Modules) */
section:nth-of-type(odd) {
  background-color: var(--color-bg);
}

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

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

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

.section-header {
  margin-bottom: var(--space-xl);
  max-width: 800px;
}

.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-interactive);
  margin-bottom: var(--space-xs);
  background-color: #FCE7F3;
  padding: 0.2rem 0.5rem;
  border-radius: 3px;
}

.section-desc {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   Hero System: hero-guide-introduction
   ========================================================================== */

.hero-guide {
  background-color: var(--color-surface);
  border-bottom: 2px solid var(--color-border);
  padding: var(--space-2xl) 1.25rem var(--space-xl);
}

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

.hero-breadcrumbs {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

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

.hero-title-area {
  max-width: 850px;
  margin-bottom: var(--space-lg);
}

.hero-title-area h1 {
  font-size: 2.25rem;
  line-height: 1.2;
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
}

.hero-subtitle {
  font-size: 1.125rem;
  line-height: 1.55;
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

.hero-search-bar {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
  max-width: 600px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: var(--space-md);
}

.hero-search-bar input {
  border: none;
  background: transparent;
  width: 100%;
  font-size: 0.9375rem;
  font-family: inherit;
  color: var(--color-text-primary);
  outline: none;
}

.hero-quick-topics {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.quick-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.quick-tag {
  font-size: 0.8125rem;
  background-color: var(--color-bg-muted);
  color: var(--color-text-primary);
  padding: 0.25rem 0.65rem;
  border-radius: 4px;
  border: 1px solid var(--color-border);
  text-decoration: none;
  font-weight: 500;
}

.quick-tag:hover {
  background-color: var(--color-border);
  color: var(--color-interactive);
}

/* ==========================================================================
   Grid System: Grid Modular 12
   ========================================================================== */

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-lg);
  align-items: start;
}

.col-12 { grid-column: span 12; }
.col-8 { grid-column: span 8; }
.col-7 { grid-column: span 7; }
.col-6 { grid-column: span 6; }
.col-5 { grid-column: span 5; }
.col-4 { grid-column: span 4; }
.col-3 { grid-column: span 3; }

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

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

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

/* ==========================================================================
   Card System: Cards Featured Modular
   ========================================================================== */

.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.card:hover {
  border-color: #D1C2BB;
}

.card-header-tag {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xs);
  letter-spacing: 0.05em;
}

.card h3 {
  font-size: 1.15rem;
  line-height: 1.35;
  margin-bottom: var(--space-xs);
}

.card h3 a {
  color: var(--color-text-primary);
  text-decoration: none;
}

.card h3 a:hover {
  color: var(--color-interactive);
}

.card p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin-bottom: var(--space-md);
  flex-grow: 1;
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-sm);
  font-size: 0.75rem;
  color: var(--color-text-secondary);
}

.card-link-action {
  font-weight: 600;
  color: var(--color-interactive);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.card-link-action:hover {
  text-decoration: underline;
}

/* Utilitarian text-only list card (Design Profile) */
.list-card-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: var(--space-md) var(--space-lg);
  border-radius: 4px;
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: baseline;
  gap: var(--space-md);
}

.list-card-num {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-interactive);
  min-width: 2rem;
}

/* ==========================================================================
   Article System: Article Magazine Layout
   ========================================================================== */

article {
  max-width: var(--article-max);
  margin: 0 auto;
}

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

.article-meta-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  margin-top: var(--space-sm);
}

.article-reading-time {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

/* Table of Contents */
.toc-box {
  background-color: var(--color-bg-muted);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.toc-title {
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

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

.toc-list li {
  margin-bottom: 0.4rem;
  font-size: 0.875rem;
}

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

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

/* Pull Quotes & Callouts */
.pull-quote {
  border-left: 4px solid var(--color-accent);
  padding: var(--space-md) var(--space-lg);
  margin: var(--space-xl) 0;
  background-color: var(--color-bg-muted);
  border-radius: 0 4px 4px 0;
}

.pull-quote p {
  font-size: 1.0625rem;
  font-style: italic;
  color: var(--color-text-primary);
  margin-bottom: 0.25rem;
}

.pull-quote cite {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  font-style: normal;
  font-weight: 600;
}

.callout-box {
  background-color: #FEF2F2;
  border: 1px solid #FECACA;
  border-radius: 6px;
  padding: var(--space-md) var(--space-lg);
  margin: var(--space-lg) 0;
}

.callout-box.info {
  background-color: var(--color-bg-muted);
  border-color: var(--color-border);
}

.callout-box h4 {
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  color: var(--color-text-primary);
}

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

/* Practical Checklist Module */
.checklist-module {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: var(--space-lg);
  margin: var(--space-xl) 0;
}

.checklist-title {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.checklist-items {
  list-style: none;
}

.checklist-items li {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  font-size: 0.9375rem;
  margin-bottom: var(--space-sm);
  line-height: 1.5;
}

.checklist-items svg {
  flex-shrink: 0;
  margin-top: 0.2rem;
  stroke: var(--color-success);
}

/* ==========================================================================
   CONVERSION BRIDGE BLOCK (Блок-міст)
   ========================================================================== */

.conversion-bridge {
  background-color: var(--color-bg-muted);
  border: 2px solid var(--color-border);
  border-radius: 8px;
  padding: var(--space-xl);
  margin: var(--space-2xl) 0 var(--space-lg);
  position: relative;
}

.bridge-tag {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  color: #FFFFFF;
  background-color: var(--color-interactive);
  padding: 0.2rem 0.5rem;
  border-radius: 3px;
  margin-bottom: var(--space-sm);
}

.conversion-bridge h3 {
  font-size: 1.35rem;
  line-height: 1.3;
  margin-bottom: var(--space-sm);
}

.conversion-bridge p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.55;
  margin-bottom: var(--space-lg);
}

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

.btn-primary {
  background-color: var(--color-accent);
  color: #FFFFFF !important;
  font-weight: 600;
  text-decoration: none !important;
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  font-size: 0.9375rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  transition: background-color 0.2s ease;
  border: none;
  cursor: pointer;
}

.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--color-interactive);
}

.btn-secondary {
  background-color: var(--color-surface);
  color: var(--color-text-primary) !important;
  font-weight: 600;
  text-decoration: none !important;
  padding: 0.75rem 1.25rem;
  border-radius: 4px;
  font-size: 0.875rem;
  border: 1px solid var(--color-border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  transition: background-color 0.2s ease;
}

.btn-secondary:hover {
  background-color: var(--color-bg);
  border-color: #D1C2BB;
}

.bridge-guarantee-note {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

/* ==========================================================================
   Order Page & Product Visual Area
   ========================================================================== */

.product-hero-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.product-image-box {
  width: 100%;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  background-color: var(--color-bg);
}

.product-image-box img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 4/3;
}

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

.pricing-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  position: relative;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.pricing-card.featured {
  border: 2px solid var(--color-accent);
  background-color: #FFFDFD;
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-accent);
  color: #FFFFFF;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: 12px;
  letter-spacing: 0.05em;
}

.pricing-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.pricing-subtitle {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

.pricing-amount {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 0.25rem;
}

.pricing-currency {
  font-size: 1.25rem;
  font-weight: 600;
}

.pricing-old {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  text-decoration: line-through;
  margin-bottom: var(--space-md);
}

.pricing-features {
  list-style: none;
  text-align: left;
  font-size: 0.8125rem;
  margin-bottom: var(--space-lg);
  flex-grow: 1;
}

.pricing-features li {
  padding: 0.35rem 0;
  border-bottom: 1px dashed var(--color-border);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* Order Form Styling */
.order-form-container {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: var(--space-xl);
  max-width: 650px;
  margin: 0 auto;
}

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

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--color-text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.625rem 0.75rem;
  font-family: inherit;
  font-size: 0.9375rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  outline: none;
  min-height: 44px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-interactive);
  background-color: #FFFFFF;
}

.form-error-msg {
  color: #DC2626;
  font-size: 0.75rem;
  margin-top: 0.25rem;
  display: none;
}

.form-guarantee-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-top: var(--space-md);
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

/* ==========================================================================
   Data Table Styling (comparison-guide)
   ========================================================================== */

.table-responsive-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: var(--space-lg) 0;
  border: 1px solid var(--color-border);
  border-radius: 6px;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  background-color: var(--color-surface);
  font-size: 0.875rem;
}

thead th {
  background-color: var(--color-bg-muted);
  padding: 0.75rem 1rem;
  font-weight: 700;
  color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-border);
}

tbody td {
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-primary);
}

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

tbody tr:hover {
  background-color: var(--color-bg);
}

/* ==========================================================================
   FAQ System: Accessible Accordions
   ========================================================================== */

details {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  margin-bottom: var(--space-sm);
  padding: 0.75rem 1rem;
}

details[open] {
  border-color: #D1C2BB;
}

summary {
  font-weight: 600;
  font-size: 0.9375rem;
  cursor: pointer;
  color: var(--color-text-primary);
  outline: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 40px;
}

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

summary::after {
  content: '+';
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--color-interactive);
}

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

details p {
  margin-top: var(--space-sm);
  margin-bottom: 0.25rem;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* ==========================================================================
   Footer System: footer-editorial
   ========================================================================== */

footer {
  background-color: var(--color-surface);
  border-top: 2px solid var(--color-border);
  padding: var(--space-3xl) 1.25rem var(--space-xl);
  width: 100%;
}

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

.footer-top-row {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer-wordmark {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-xs);
}

.footer-desc {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  max-width: 480px;
  margin-bottom: var(--space-md);
}

.footer-col-title {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-md);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  text-decoration: none;
}

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

.footer-bottom-row {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
  font-size: 0.75rem;
  color: var(--color-text-secondary);
}

.footer-legal-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.footer-legal-links a {
  color: var(--color-text-secondary);
  text-decoration: none;
}

.footer-legal-links a:hover {
  text-decoration: underline;
}

/* ==========================================================================
   Responsive Breakpoints & Mobile Storytelling
   ========================================================================== */

@media (max-width: 1024px) {
  .grid-12 {
    grid-template-columns: repeat(6, 1fr);
  }
  .col-8, .col-7, .col-6 { grid-column: span 6; }
  .col-5, .col-4, .col-3 { grid-column: span 3; }

  .grid-cards-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-cards-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-cards-grid {
    grid-template-columns: 1fr;
  }
  .footer-top-row {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .mobile-nav-toggle {
    display: inline-flex;
  }

  nav .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--color-surface);
    border-bottom: 2px solid var(--color-border);
    flex-direction: column;
    padding: var(--space-lg);
    gap: var(--space-sm);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
  }

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

  .nav-links a {
    width: 100%;
    padding: 0.75rem 0.5rem;
    font-size: 1rem;
    border-bottom: 1px solid var(--color-border);
  }

  .grid-12 {
    grid-template-columns: 1fr;
  }
  .col-12, .col-8, .col-7, .col-6, .col-5, .col-4, .col-3 {
    grid-column: span 1;
  }

  .grid-cards-3, .grid-cards-2, .grid-cards-4 {
    grid-template-columns: 1fr;
  }

  .product-hero-wrap {
    grid-template-columns: 1fr;
    padding: var(--space-md);
  }

  .hero-guide {
    padding: var(--space-xl) 1rem var(--space-lg);
  }

  .hero-title-area h1 {
    font-size: 1.75rem;
  }

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

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

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

@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;
  }
}