/* ==========================================================================
   CYFENDO WHITEPAPER PAGE STYLESHEET (/whitepaper) - REDESIGN THEME
   Editorial paper aesthetic, Newsreader display serif, cream canvas & teal.
   ========================================================================== */

body:has(#whitepaper-content),
#whitepaper-content {
  background-color: var(--sand);
  color: var(--ink);
  font-family: var(--app-font-sans);
}

/* Whitepaper Hero */
.whitepaper-hero {
  padding: 4.5rem 0 3rem;
  background: var(--sand);
  border-bottom: 1px solid var(--line);
}

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-family: var(--app-font-mono);
  color: var(--ink-soft);
  margin-bottom: 1.5rem;
}

.breadcrumbs a {
  color: var(--teal);
  text-decoration: none;
  transition: color 0.15s ease;
}

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

.breadcrumb-sep {
  color: var(--line);
}

.breadcrumb-current {
  color: var(--ink-soft);
}

.wp-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--teal);
  background: var(--muted);
  border: 1px solid var(--line);
  border-radius: 9999px;
  font: 600 11px/1 var(--app-font-mono);
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 6px 14px;
  margin-bottom: 1.25rem;
}

.wp-title {
  font-family: var(--app-font-serif);
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin-bottom: 1rem;
}

.wp-meta-text {
  font-size: 0.95rem;
  color: var(--ink-soft);
  margin-bottom: 1.75rem;
  font-family: var(--app-font-sans);
}

.wp-meta-text strong {
  color: var(--ink);
}

.wp-actions-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.wp-actions-bar .btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--paper);
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-family: var(--app-font-sans, 'Manrope', sans-serif);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: -0.015em;
  cursor: pointer;
  box-shadow: 0 1px 3px hsl(183 34% 13% / .05);
  transition: all 0.2s ease;
}

.wp-actions-bar .btn-ghost:hover {
  background: var(--paper-bright, #FFFFFF);
  border-color: var(--teal);
  color: var(--teal);
  transform: translateY(-1px);
}

/* Key Empirical Highlights Strip */
.wp-highlights-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.wp-highlight-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.5rem 1.25rem;
  text-align: center;
  box-shadow: 0 4px 16px hsl(183 34% 13% / .04);
  transition: all 0.2s ease;
}

.wp-highlight-card:hover {
  transform: translateY(-2px);
  border-color: var(--teal);
  box-shadow: 0 8px 24px hsl(183 34% 13% / .08);
}

.wp-highlight-num {
  font-family: var(--app-font-sans);
  font-size: clamp(1.85rem, 2.8vw, 2.35rem);
  font-weight: 800;
  color: var(--ink);
  line-height: 1;
  margin-bottom: 0.4rem;
  letter-spacing: -0.03em;
}

.wp-highlight-num.emerald {
  color: #1a7a58;
}

.wp-highlight-num.indigo {
  color: var(--teal);
}

.wp-highlight-label {
  font-size: 0.82rem;
  color: var(--ink-soft);
  font-weight: 500;
  font-family: var(--app-font-mono);
}

/* Layout Grid */
.whitepaper-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 3.5rem;
  padding: 3.5rem 0 6rem;
  align-items: start;
}

/* Sidebar Table of Contents */
.wp-toc-sidebar {
  position: sticky;
  top: 90px;
}

.wp-toc-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.5rem;
  box-shadow: 0 6px 20px hsl(183 34% 13% / .04);
}

.wp-toc-header {
  padding-bottom: 0.75rem;
  margin-bottom: 0.75rem;
  border-bottom: 1px solid var(--line);
}

.wp-toc-title {
  font-family: var(--app-font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--teal);
}

.wp-toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
}

.wp-toc-link {
  display: block;
  font-size: 0.85rem;
  color: var(--ink-soft);
  text-decoration: none;
  padding: 0.4rem 0.6rem;
  border-radius: 6px;
  transition: all 0.15s ease;
  line-height: 1.4;
}

.wp-toc-link:hover,
.wp-toc-link.active {
  color: var(--teal);
  background: hsl(183 45% 28% / .08);
  font-weight: 600;
}

/* Article Styling */
.wp-article {
  min-width: 0;
}

.wp-section {
  margin-bottom: 3.5rem;
}

.wp-section-heading {
  font-family: var(--app-font-serif);
  font-size: clamp(1.6rem, 2.5vw, 2.1rem);
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.heading-anchor {
  color: var(--line);
  text-decoration: none;
  font-size: 1.25rem;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.wp-section-heading:hover .heading-anchor {
  opacity: 1;
  color: var(--teal);
}

/* Abstract Box */
.wp-abstract-box {
  background: var(--paper);
  border: 1px solid var(--line);
  border-left: 4px solid var(--teal);
  border-radius: 12px;
  padding: 2rem;
  margin-bottom: 2.5rem;
  box-shadow: 0 6px 20px hsl(183 34% 13% / .04);
}

.wp-abstract-title {
  font-family: var(--app-font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--teal);
  margin-bottom: 0.75rem;
}

.wp-abstract-text {
  font-family: var(--app-font-serif);
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--ink);
  font-style: italic;
  margin: 0;
}

.wp-paragraph {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--ink-soft);
  margin-bottom: 1.5rem;
}

.wp-paragraph strong {
  color: var(--ink);
}

.wp-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.wp-list-item {
  position: relative;
  padding-left: 1.5rem;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--ink-soft);
}

.wp-list-item::before {
  content: "▹";
  position: absolute;
  left: 0;
  color: var(--teal);
  font-size: 1rem;
  line-height: 1.65;
}

.wp-list-item strong {
  color: var(--ink);
}

/* Data Tables */
.wp-table-wrap {
  overflow-x: auto;
  margin: 2rem 0;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 4px 16px hsl(183 34% 13% / .04);
}

.wp-data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

.wp-data-table th {
  background: hsl(183 45% 28% / .04);
  padding: 1rem 1.25rem;
  font-family: var(--app-font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink);
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.wp-data-table td {
  padding: 0.9rem 1.25rem;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--line);
}

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

.wp-data-table tr:hover td {
  background: hsl(183 45% 28% / .02);
}

.wp-table-highlight {
  background: hsl(46 91% 66% / .08) !important;
  font-weight: 600;
}

.wp-table-highlight td {
  color: var(--ink) !important;
}

/* Math & Callout Boxes */
.wp-callout {
  background: var(--paper);
  border: 1px solid var(--line);
  border-left: 3px solid var(--teal);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  margin: 1.75rem 0;
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--ink-soft);
}

.wp-formula-box {
  background: var(--night);
  color: #FFFFFF;
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
  font-family: var(--app-font-mono);
  font-size: 0.95rem;
  overflow-x: auto;
}

.wp-code-snippet {
  background: var(--night);
  color: #FFFFFF;
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
  font-family: var(--app-font-mono);
  font-size: 0.85rem;
  line-height: 1.6;
  overflow-x: auto;
}

/* References / Footnotes */
.wp-references-list {
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--ink-soft);
  padding-left: 1.25rem;
}

.wp-references-list li {
  margin-bottom: 0.75rem;
}

.wp-references-list a {
  color: var(--teal);
  text-decoration: underline;
}

/* Responsive */
@media (max-width: 1024px) {
  .whitepaper-layout {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .wp-toc-sidebar {
    display: none !important;
  }

  .mobile-toc-accordion {
    display: block;
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 12px;
    margin-bottom: 2rem;
    overflow: hidden;
    box-shadow: 0 4px 14px rgba(22, 39, 40, 0.05);
  }

  .mobile-toc-summary {
    padding: 13px 18px;
    font-weight: 700;
    font-size: 14px;
    color: var(--ink);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    list-style: none;
    background: var(--paper);
    transition: background 0.2s ease, color 0.2s ease;
  }

  .mobile-toc-summary:hover {
    background: #FFFFFF;
    color: var(--teal);
  }

  .mobile-toc-summary::-webkit-details-marker {
    display: none;
  }

  .mobile-toc-summary::after {
    content: '';
    width: 8px;
    height: 8px;
    border-right: 2px solid var(--ink);
    border-bottom: 2px solid var(--ink);
    transform: rotate(45deg);
    transition: transform 0.2s ease;
    margin-right: 4px;
  }

  .mobile-toc-accordion[open] .mobile-toc-summary::after {
    transform: rotate(-135deg);
  }

  .mobile-toc-accordion[open] .mobile-toc-summary {
    border-bottom: 1px solid var(--line);
  }

  .mobile-toc-body {
    padding: 10px 14px 14px;
    border-top: 1px solid var(--line);
    background: hsl(39 31% 94% / 0.5);
  }

  .mobile-toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
  }

  .mobile-toc-item a {
    color: var(--ink-soft);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    display: block;
    padding: 7px 10px;
    border-radius: 6px;
    transition: all 0.15s ease;
  }

  .mobile-toc-item a:hover {
    color: var(--teal);
    background: hsl(183 45% 28% / .08);
  }
  
  .wp-highlights-strip {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .wp-highlights-strip {
    grid-template-columns: 1fr;
  }
  
  .wp-actions-bar {
    flex-direction: column;
    align-items: stretch;
  }
  
  .wp-actions-bar .btn-ghost {
    justify-content: center;
  }
}

/* ==========================================================================
   PRINT / PDF EXPORT SPECIFICATION (@media print)
   Converts web page into a publication-grade academic / technical paper.
   ========================================================================== */

.no-screen {
  display: none !important;
}

@media print {
  /* 1. Hide web navigation, chrome, sidebars, interactive controls & banners */
  .no-print,
  .app-header,
  .topbar,
  header,
  .footer,
  footer,
  .skip-link,
  .breadcrumbs,
  .wp-actions-bar,
  .wp-toc-sidebar,
  .mobile-toc-accordion,
  .heading-anchor,
  .bottom-cta-card,
  .consent-banner,
  .cookie-banner,
  .modal,
  .modal-backdrop,
  .video-modal-overlay,
  .toast-container,
  #cookieConsentBanner,
  #cookieModal,
  #toast-container,
  #impersonationBanner,
  .sr-only {
    display: none !important;
  }

  /* 2. Show print-only publication header and footer */
  .no-screen,
  .wp-print-header,
  .wp-print-footer {
    display: flex !important;
  }

  .wp-print-header {
    display: flex !important;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 10pt;
    margin-bottom: 14pt;
    border-bottom: 1.5pt solid #0e1e24;
    font-family: var(--app-font-mono, monospace);
    font-size: 8pt;
    color: #4b5563;
  }

  .wp-print-header-left {
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .wp-print-logo {
    height: 22px;
    width: auto;
  }

  .wp-print-tagline {
    font-weight: 700;
    color: #0e1e24;
  }

  .wp-print-header-right {
    font-size: 7.5pt;
    color: #6b7280;
  }

  .wp-print-footer {
    margin-top: 24pt;
    padding-top: 10pt;
    border-top: 1pt solid #d1d5db;
    font-family: var(--app-font-mono, monospace);
    font-size: 7.5pt;
    color: #6b7280;
    display: flex !important;
    justify-content: space-between;
    page-break-inside: avoid;
    break-inside: avoid;
  }

  /* 3. Paper Setup & Standard Margins */
  @page {
    size: letter;
    margin: 16mm 14mm 18mm 14mm;
  }

  html,
  body,
  body:has(#whitepaper-content),
  #whitepaper-content,
  .whitepaper-page {
    background: #FFFFFF !important;
    background-color: #FFFFFF !important;
    color: #111827 !important;
    font-size: 10pt !important;
    line-height: 1.55 !important;
    margin: 0 !important;
    padding: 0 !important;
    width: 100% !important;
    max-width: 100% !important;
    box-shadow: none !important;
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
  }

  .container,
  .container-wide {
    max-width: 100% !important;
    width: 100% !important;
    padding: 0 !important;
    margin: 0 !important;
  }

  /* 4. Hero Section */
  .whitepaper-hero {
    padding: 0 !important;
    background: transparent !important;
    border-bottom: none !important;
    margin-bottom: 12pt !important;
  }

  .wp-kicker {
    font-size: 7.5pt !important;
    padding: 2pt 8pt !important;
    color: #1a5255 !important;
    background: #f0f7f7 !important;
    border: 1pt solid #b2d5d7 !important;
    border-radius: 4px !important;
    margin-bottom: 8pt !important;
    display: inline-block !important;
  }

  .wp-title {
    font-size: 22pt !important;
    line-height: 1.2 !important;
    color: #0e1e24 !important;
    letter-spacing: -0.02em !important;
    margin-bottom: 6pt !important;
    page-break-after: avoid;
    break-after: avoid;
  }

  .wp-meta-text {
    font-size: 8.5pt !important;
    color: #4b5563 !important;
    margin-bottom: 12pt !important;
    page-break-after: avoid;
    break-after: avoid;
  }

  .wp-meta-text strong {
    color: #111827 !important;
  }

  /* 5. Key Metrics Highlight Strip */
  .wp-highlights-strip {
    display: grid !important;
    grid-template-columns: repeat(4, 1fr) !important;
    gap: 8pt !important;
    margin: 10pt 0 16pt !important;
    page-break-inside: avoid;
    break-inside: avoid;
  }

  .wp-highlight-card {
    background: #f9fafb !important;
    border: 1pt solid #d1d5db !important;
    border-radius: 6pt !important;
    padding: 8pt 6pt !important;
    text-align: center !important;
    box-shadow: none !important;
  }

  .wp-highlight-num {
    font-size: 16pt !important;
    font-weight: 800 !important;
    line-height: 1 !important;
    margin-bottom: 3pt !important;
  }

  .wp-highlight-num.emerald {
    color: #14532d !important;
  }

  .wp-highlight-num.indigo {
    color: #1e3a8a !important;
  }

  .wp-highlight-label {
    font-size: 7.5pt !important;
    color: #4b5563 !important;
  }

  /* 6. Document Body Layout: Full Width Single Column */
  .whitepaper-layout {
    display: block !important;
    padding: 0 !important;
    margin: 0 !important;
    gap: 0 !important;
  }

  .wp-article {
    width: 100% !important;
    max-width: 100% !important;
  }

  /* 7. Abstract Box */
  .wp-abstract-box {
    background: #f8fafc !important;
    border: 1pt solid #cbd5e1 !important;
    border-left: 3.5pt solid #1a5255 !important;
    border-radius: 6pt !important;
    padding: 12pt 14pt !important;
    margin: 12pt 0 18pt !important;
    box-shadow: none !important;
    page-break-inside: avoid;
    break-inside: avoid;
  }

  .wp-abstract-title {
    font-size: 8pt !important;
    color: #1a5255 !important;
    margin-bottom: 4pt !important;
  }

  .wp-abstract-text {
    font-size: 10pt !important;
    line-height: 1.55 !important;
    color: #1f2937 !important;
  }

  /* 8. Section Structure & Headings */
  .wp-section {
    margin-bottom: 16pt !important;
  }

  .wp-section-heading {
    font-size: 13pt !important;
    font-weight: 700 !important;
    color: #0e1e24 !important;
    border-bottom: 1pt solid #e5e7eb !important;
    padding-bottom: 3pt !important;
    margin-top: 14pt !important;
    margin-bottom: 6pt !important;
    page-break-after: avoid;
    break-after: avoid;
  }

  .wp-paragraph {
    font-size: 9.5pt !important;
    line-height: 1.55 !important;
    color: #1f2937 !important;
    margin-bottom: 7pt !important;
    orphans: 3;
    widows: 3;
  }

  .wp-paragraph strong {
    color: #000000 !important;
  }

  .wp-list {
    margin: 0 0 8pt 0 !important;
    gap: 4pt !important;
  }

  .wp-list-item {
    font-size: 9.5pt !important;
    line-height: 1.5 !important;
    color: #1f2937 !important;
  }

  .wp-list-item strong {
    color: #000000 !important;
  }

  /* 9. Data Tables */
  .wp-table-wrap {
    overflow: visible !important;
    margin: 10pt 0 14pt !important;
    background: #FFFFFF !important;
    border: 1pt solid #d1d5db !important;
    border-radius: 4pt !important;
    box-shadow: none !important;
    page-break-inside: avoid;
    break-inside: avoid;
  }

  .wp-data-table {
    width: 100% !important;
    font-size: 8pt !important;
  }

  .wp-data-table th {
    background: #f3f4f6 !important;
    color: #111827 !important;
    border-bottom: 1.5pt solid #9ca3af !important;
    padding: 4.5pt 7pt !important;
    font-size: 7.5pt !important;
  }

  .wp-data-table td {
    padding: 4pt 7pt !important;
    color: #374151 !important;
    border-bottom: 0.75pt solid #e5e7eb !important;
  }

  .wp-table-highlight {
    background: #fef9c3 !important;
    font-weight: 700 !important;
  }

  .wp-table-highlight td {
    color: #000000 !important;
  }

  /* 10. Callouts & Formulas */
  .wp-callout {
    background: #f8fafc !important;
    border: 1pt solid #d1d5db !important;
    border-left: 3pt solid #1a5255 !important;
    border-radius: 4pt !important;
    padding: 8pt 10pt !important;
    margin: 10pt 0 !important;
    font-size: 9pt !important;
    line-height: 1.5 !important;
    color: #374151 !important;
    box-shadow: none !important;
    page-break-inside: avoid;
    break-inside: avoid;
  }

  .wp-formula-box,
  .wp-code-snippet {
    background: #f8fafc !important;
    color: #0f172a !important;
    border: 1pt solid #cbd5e1 !important;
    border-radius: 4pt !important;
    padding: 8pt 10pt !important;
    margin: 8pt 0 !important;
    font-size: 7.5pt !important;
    line-height: 1.45 !important;
    white-space: pre-wrap !important;
    word-break: break-word !important;
    overflow: visible !important;
    page-break-inside: avoid;
    break-inside: avoid;
  }

  /* 11. References & Citations */
  .wp-references-list {
    font-size: 8.5pt !important;
    line-height: 1.5 !important;
    color: #374151 !important;
    padding-left: 14pt !important;
  }

  .wp-references-list li {
    margin-bottom: 4pt !important;
  }

  .wp-citation-card {
    background: #f8fafc !important;
    border: 1pt solid #cbd5e1 !important;
    border-radius: 6pt !important;
    padding: 10pt 12pt !important;
    box-shadow: none !important;
    page-break-inside: avoid;
    break-inside: avoid;
  }

  .wp-citation-title {
    font-size: 11pt !important;
    color: #0e1e24 !important;
  }

  .wp-bibtex-block {
    background: #ffffff !important;
    color: #0f172a !important;
    border: 1pt solid #e2e8f0 !important;
    font-size: 7.5pt !important;
    line-height: 1.4 !important;
    padding: 8pt !important;
    white-space: pre-wrap !important;
    overflow: visible !important;
  }

  a {
    color: #111827 !important;
    text-decoration: underline !important;
  }
}