/* Flex Motion Hu - Design System D-040E14-16 (Swiss Knowledge System / Layout Wide Editorial / Nav Large Editorial) */

:root {
  /* Typography Tokens */
  --font-sans: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-serif: ui-serif, Georgia, Cambria, 'Times New Roman', Times, serif;
  --font-mono: 'IBM Plex Mono', 'Space Mono', SFMono-Regular, Menlo, Monaco, Consolas, monospace;

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

  /* Container & Spacing Tokens */
  --max-width: 1360px;
  --gutter: 2rem;
  --transition-speed: 0.2s;
  --radius-sharp: 2px;
}

/* Reset & Box-sizing (Hard rules for mobile stability) */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  overflow-x: hidden;
  width: 100%;
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

/* Accessibility: Skip Link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 10px;
  background: var(--accent-color);
  color: #FFFFFF;
  padding: 0.5rem 1rem;
  z-index: 9999;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-decoration: none;
  border-radius: var(--radius-sharp);
  transition: top var(--transition-speed);
}
.skip-link:focus {
  top: 10px;
  outline: 2px solid var(--text-primary);
}

/* Focus styles for keyboard navigation */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 3px;
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-mono);
  color: var(--text-primary);
  font-weight: 500;
  text-align: left;
}

h1 {
  font-size: 2.5rem;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.75rem;
  line-height: 1.25;
  margin-top: 2rem;
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.25rem;
  line-height: 1.3;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}

p {
  margin-bottom: 1.25rem;
  color: var(--text-primary);
  max-width: 75ch;
  text-align: left; /* NEVER justified */
}

ul, ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
  color: var(--text-primary);
}

li {
  margin-bottom: 0.5rem;
  line-height: 1.5;
}

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

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

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

/* Raw Semantic Layout Tags */
header {
  background-color: #201C18;
  color: #FAF6F0;
  border-bottom: 2px solid var(--accent-color);
  width: 100%;
}

.header-top {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.75rem var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(235, 227, 213, 0.15);
}

.brand-wrapper {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: var(--font-mono);
  font-size: 1.85rem;
  font-weight: 700;
  color: #FAF6F0;
  text-decoration: none;
  letter-spacing: -0.03em;
  text-transform: uppercase;
}

.brand-tagline {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #C2B6A6;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 0.25rem;
}

.nav-toggle-btn {
  display: none;
  background: transparent;
  border: 1px solid rgba(235, 227, 213, 0.4);
  color: #FAF6F0;
  padding: 0.5rem 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  cursor: pointer;
}

nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.nav-list {
  list-style: none;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding: 0.85rem 0;
  margin: 0;
}

.nav-list li a {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #DDD4C7;
  text-decoration: none;
  padding: 0.35rem 0.5rem;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-speed);
}

.nav-list li a:hover,
.nav-list li a.active {
  color: #FFFFFF;
  border-bottom: 2px solid var(--accent-color);
}

.nav-cta-link {
  margin-left: auto;
}

.nav-cta-btn {
  background-color: var(--accent-color);
  color: #FFFFFF !important;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.85rem;
  padding: 0.55rem 1.25rem;
  border-radius: var(--radius-sharp);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: inline-block;
  min-height: 44px;
  line-height: 28px;
  transition: background-color var(--transition-speed);
  border: 1px solid var(--interactive-color);
}

.nav-cta-btn:hover {
  background-color: var(--interactive-color);
  color: #FFFFFF;
}

main {
  width: 100%;
  min-height: calc(100vh - 400px);
}

section {
  width: 100%;
  padding: 4.5rem var(--gutter);
  border-bottom: 1px solid var(--border-color);
}

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

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

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

/* Hero Section (Hero Text First) */
.hero-block {
  padding: 3.5rem var(--gutter) 4rem var(--gutter);
  background-color: var(--surface-color);
  border-bottom: 2px solid var(--border-color);
}

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

.hero-meta-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background-color: var(--bg-muted);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  padding: 0.25rem 0.65rem;
  margin-bottom: 1rem;
}

.hero-lead {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 68ch;
  margin-bottom: 2rem;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

/* Buttons (CTA Contained) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.75rem 1.75rem;
  min-height: 44px;
  min-width: 44px;
  text-decoration: none;
  border-radius: var(--radius-sharp);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-speed);
}

.btn-primary {
  background-color: var(--accent-color);
  color: #FFFFFF;
  border-color: var(--interactive-color);
}

.btn-primary:hover {
  background-color: var(--interactive-color);
  color: #FFFFFF;
}

.btn-secondary {
  background-color: var(--surface-color);
  color: var(--text-primary);
  border-color: var(--border-color);
}

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

/* Grid System (Grid Wide 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 (Cards Featured Modular) */
.card {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sharp);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: border-color var(--transition-speed);
}

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

.card-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-color);
  text-transform: uppercase;
  margin-bottom: 0.75rem;
  letter-spacing: 0.05em;
}

.card h3 {
  margin-top: 0;
  font-size: 1.25rem;
}

.card-link {
  margin-top: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--interactive-color);
  text-decoration: none;
}

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

/* Article Structured Guide Layout */
article {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem var(--gutter) 4rem var(--gutter);
}

.article-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 2rem;
  margin-bottom: 2.5rem;
}

.article-meta {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.825rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

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

.article-toc {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: 1.5rem;
  position: sticky;
  top: 1.5rem;
}

.article-toc h4 {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

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

.article-toc li {
  margin-bottom: 0.65rem;
}

.article-toc a {
  font-size: 0.875rem;
  text-decoration: none;
  color: var(--text-primary);
  display: block;
}

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

.article-content {
  max-width: 75ch;
}

.article-content h2 {
  padding-top: 1rem;
  border-top: 1px dashed var(--border-color);
}

.callout-box {
  background-color: var(--bg-muted);
  border-left: 4px solid var(--accent-color);
  padding: 1.25rem 1.5rem;
  margin: 2rem 0;
}

.callout-title {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

/* Checklist items */
.checklist-group {
  margin: 1.5rem 0;
}

.checklist-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.checklist-item input[type="checkbox"] {
  width: 1.2rem;
  height: 1.2rem;
  margin-top: 0.2rem;
  accent-color: var(--accent-color);
  cursor: pointer;
}

/* Tables (Accessible & Mobile Friendly) */
.table-wrapper {
  width: 100%;
  overflow-x: auto;
  margin: 2rem 0;
  border: 1px solid var(--border-color);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  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-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--text-primary);
}

tr:hover td {
  background-color: #FAF8F5;
}

/* Accordion details */
details {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  margin-bottom: 0.75rem;
  border-radius: var(--radius-sharp);
}

summary {
  font-family: var(--font-mono);
  font-weight: 500;
  padding: 1.25rem;
  cursor: pointer;
  user-select: none;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

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

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

details .faq-body {
  padding: 0 1.25rem 1.25rem 1.25rem;
  border-top: 1px solid var(--border-color);
}

/* Conversion Bridge Block (Mandatory on every informational article) */
.conversion-bridge {
  margin-top: 4rem;
  padding: 2.5rem;
  background-color: var(--surface-color);
  border: 2px solid var(--accent-color);
  border-radius: var(--radius-sharp);
}

.bridge-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--interactive-color);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.conversion-bridge h3 {
  font-size: 1.5rem;
  margin-top: 0.25rem;
  margin-bottom: 1rem;
}

.conversion-bridge p {
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

/* Sales Block on Homepage & Order Page */
.offer-showcase {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: 2.5rem;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 2.5rem;
  align-items: center;
}

.offer-visual {
  width: 100%;
  border: 1px solid var(--border-color);
}

.price-tag {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--interactive-color);
  margin: 1rem 0;
}

.price-original {
  font-size: 1.15rem;
  text-decoration: line-through;
  color: var(--text-secondary);
  margin-left: 0.75rem;
  font-weight: 400;
}

/* Order Form */
.order-form-container {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: 2.5rem;
  margin-top: 2rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  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);
  background-color: var(--bg-color);
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--text-primary);
  border-radius: var(--radius-sharp);
  min-height: 44px;
}

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

.package-card {
  border: 2px solid var(--border-color);
  padding: 1.25rem;
  cursor: pointer;
  background-color: var(--bg-color);
  transition: all var(--transition-speed);
}

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

.package-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.2rem 0.5rem;
  background: var(--accent-color);
  color: #fff;
  margin-bottom: 0.5rem;
}

/* Guarantee badges */
.guarantee-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.guarantee-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.guarantee-icon {
  width: 2.5rem;
  height: 2.5rem;
  flex-shrink: 0;
  color: var(--accent-color);
}

/* Footer (Footer Information Dense) */
footer {
  background-color: #1A1714;
  color: #B5ABA0;
  border-top: 4px solid var(--accent-color);
  padding: 4.5rem var(--gutter) 2.5rem var(--gutter);
  width: 100%;
}

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

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  color: #FAF6F0;
  letter-spacing: 0.08em;
  margin-bottom: 1.25rem;
}

.footer-col p {
  font-size: 0.875rem;
  color: #A3998E;
  margin-bottom: 0.75rem;
  max-width: 100%;
}

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

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

.footer-links a {
  color: #DDD4C7;
  font-size: 0.875rem;
  text-decoration: none;
}

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

.footer-bottom {
  border-top: 1px solid rgba(235, 227, 213, 0.15);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #8C8276;
}

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

@media (max-width: 768px) {
  :root {
    --gutter: 1rem;
  }
  
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.15rem; }
  
  .header-top {
    padding: 1.25rem var(--gutter);
  }
  
  .nav-toggle-btn {
    display: block;
  }
  
  .nav-list {
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem 0;
    width: 100%;
  }
  
  .nav-list.open {
    display: flex;
  }
  
  .nav-cta-link {
    margin-left: 0;
    width: 100%;
    margin-top: 0.5rem;
  }
  
  .nav-cta-btn {
    width: 100%;
    text-align: center;
  }
  
  .grid-12 {
    grid-template-columns: 1fr;
  }
  .col-12, .col-8, .col-6, .col-4, .col-3 {
    grid-column: span 1;
  }
  
  .package-selector,
  .guarantee-bar {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  section {
    padding: 3rem var(--gutter);
  }
}