/* ==========================================================================
   THE COLD ENCLAVE CHRONICLE - EDITORIAL DESIGN SYSTEM & STYLESHEET
   Independent Cryptographic Security, Hardware Custody & IT Analysis
   100% Unique Architecture & Modern Executive Editorial Aesthetic
   Palette: Imperial Sapphire (#1e40af / #2563eb), Obsidian Slate (#0a101d),
            Warm Burnished Amber (#d97706 / #f59e0b), Pure Paper (#ffffff),
            Light Surface (#f8fafc), Emerald Trust (#059669), Crimson Signal (#dc2626)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* Brand Primary & Accents */
  --cec-brand-primary: #1e40af;          /* Imperial Cobalt / Sapphire */
  --cec-brand-primary-hover: #1d4ed8;
  --cec-brand-accent: #2563eb;           /* Electric Royal Blue */
  --cec-brand-accent-glow: rgba(37, 99, 235, 0.16);
  --cec-brand-light: #eff6ff;

  /* Editorial Accent Signals */
  --cec-amber: #d97706;                 /* Advisory Amber */
  --cec-amber-hover: #b45309;
  --cec-amber-bg: #fffbeb;
  --cec-amber-border: #fde68a;

  --cec-emerald: #059669;               /* Verified Authentic */
  --cec-emerald-bg: #ecfdf5;
  --cec-emerald-border: #a7f3d0;

  --cec-rose: #dc2626;                  /* Scam Warning Alert */
  --cec-rose-bg: #fef2f2;
  --cec-rose-border: #fecaca;

  /* Executive Dark Surfaces (Header, Sticky Nav, Badges) */
  --cec-dark-bg: #070d19;
  --cec-dark-surface: #0f172a;
  --cec-dark-card: #162035;
  --cec-dark-border: #1e293b;
  --cec-dark-text: #f8fafc;
  --cec-dark-muted: #94a3b8;

  /* Editorial Reading Canvas */
  --cec-canvas-bg: #f8fafc;
  --cec-paper-bg: #ffffff;
  --cec-card-bg: #ffffff;
  --cec-card-subtle: #f1f5f9;
  --cec-border-base: #e2e8f0;
  --cec-border-hover: #cbd5e1;

  /* Typography Colors */
  --cec-text-heading: #0a101d;
  --cec-text-body: #334155;
  --cec-text-muted: #64748b;
  --cec-text-light: #94a3b8;

  /* Shadows & Elevation */
  --cec-shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.05);
  --cec-shadow-sm: 0 2px 4px rgba(15, 23, 42, 0.05), 0 1px 2px rgba(15, 23, 42, 0.06);
  --cec-shadow-md: 0 4px 12px -1px rgba(15, 23, 42, 0.08), 0 2px 6px -1px rgba(15, 23, 42, 0.05);
  --cec-shadow-lg: 0 12px 28px -4px rgba(15, 23, 42, 0.1), 0 4px 10px -2px rgba(15, 23, 42, 0.06);

  /* Fonts */
  --cec-font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --cec-font-display: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --cec-font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: 110px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--cec-font-sans);
  background-color: var(--cec-canvas-bg);
  color: var(--cec-text-body);
  line-height: 1.75;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

a {
  color: var(--cec-brand-primary);
  text-decoration: none;
  transition: color 0.2s ease, text-decoration 0.2s ease;
}

a:hover {
  color: var(--cec-brand-accent);
  text-decoration: underline;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--cec-brand-accent);
  outline-offset: 3px;
}

/* Reading Progress Bar */
.cec-progress-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: transparent;
  z-index: 1000;
}

.cec-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--cec-brand-accent), #38bdf8, var(--cec-amber));
  width: 0%;
  transition: width 0.1s ease-out;
}

/* Top Editorial Disclaimer Bar */
.cec-top-disclaimer {
  background-color: #0b1324;
  color: var(--cec-dark-muted);
  font-size: 0.8125rem;
  line-height: 1.45;
  padding: 8px 16px;
  border-bottom: 1px solid var(--cec-dark-border);
  text-align: center;
}

.cec-top-disclaimer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}

.cec-badge-verified {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 2px 8px;
  border-radius: 9999px;
}

.cec-badge-verified::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #34d399;
}

.cec-top-disclaimer a {
  color: #60a5fa;
  font-weight: 600;
  text-decoration: underline;
}

.cec-top-disclaimer a:hover {
  color: #93c5fd;
}

/* Sticky Header Navigation */
.cec-header {
  position: sticky;
  top: 0;
  z-index: 900;
  background-color: rgba(10, 16, 29, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--cec-dark-border);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.cec-nav-wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

/* Brand Logo */
.cec-brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none !important;
  color: #ffffff;
}

.cec-brand-shield {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  background: linear-gradient(135deg, #2563eb 0%, #1e3a8a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.4);
  flex-shrink: 0;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.cec-brand-shield svg {
  width: 20px;
  height: 20px;
  fill: #ffffff;
}

.cec-brand-info {
  display: flex;
  flex-direction: column;
}

.cec-brand-title {
  font-family: var(--cec-font-display);
  font-weight: 800;
  font-size: 1.125rem;
  letter-spacing: -0.02em;
  color: #ffffff;
  line-height: 1.2;
}

.cec-brand-title span {
  color: #60a5fa;
  font-weight: 700;
}

.cec-brand-sub {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--cec-dark-muted);
}

/* Nav Menu Links */
.cec-nav-menu {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.cec-nav-item a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #cbd5e1;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 8px 14px;
  border-radius: 8px;
  transition: all 0.2s ease;
  text-decoration: none !important;
}

.cec-nav-item a:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.06);
}

.cec-nav-item a.active {
  color: #ffffff;
  background: rgba(37, 99, 235, 0.2);
  border: 1px solid rgba(37, 99, 235, 0.4);
}

.cec-nav-item.highlight a {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #ffffff;
  font-weight: 700;
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.cec-nav-item.highlight a:hover {
  background: linear-gradient(135deg, #1d4ed8, #1e40af);
  transform: translateY(-1px);
}

.cec-nav-item.official-btn a {
  border: 1px solid rgba(148, 163, 184, 0.3);
  color: #e2e8f0;
  background: rgba(255, 255, 255, 0.03);
}

.cec-nav-item.official-btn a:hover {
  border-color: #60a5fa;
  color: #ffffff;
  background: rgba(37, 99, 235, 0.1);
}

/* Mobile Nav Toggle */
.cec-mobile-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--cec-dark-border);
  color: #ffffff;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 8px;
}

.cec-mobile-toggle svg {
  width: 22px;
  height: 22px;
  stroke: #ffffff;
}

/* Layout Framework */
.cec-site-main {
  flex: 1;
  padding: 40px 20px 80px;
}

.cec-container {
  max-width: 960px;
  margin: 0 auto;
}

.cec-container-wide {
  max-width: 1160px;
  margin: 0 auto;
}

/* Paper Card Wrapper */
.cec-paper {
  background: var(--cec-paper-bg);
  border: 1px solid var(--cec-border-base);
  border-radius: 16px;
  padding: 48px;
  box-shadow: var(--cec-shadow-sm);
}

/* Hero Section */
.cec-hero {
  margin-bottom: 36px;
}

.cec-hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--cec-brand-light);
  color: var(--cec-brand-primary);
  border: 1px solid rgba(37, 99, 235, 0.2);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 6px 14px;
  border-radius: 9999px;
  margin-bottom: 20px;
}

.cec-hero-title {
  font-family: var(--cec-font-display);
  font-size: 2.375rem;
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.025em;
  color: var(--cec-text-heading);
  margin-bottom: 18px;
}

.cec-hero-lede {
  font-size: 1.1875rem;
  line-height: 1.7;
  color: #475569;
  margin-bottom: 24px;
}

/* Editorial Metadata Byline */
.cec-meta-byline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  background: var(--cec-card-subtle);
  border: 1px solid var(--cec-border-base);
  border-radius: 12px;
  font-size: 0.84rem;
  color: var(--cec-text-muted);
  flex-wrap: wrap;
}

.cec-meta-author-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.cec-author-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: #0f172a;
  color: #60a5fa;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.8rem;
  border: 2px solid var(--cec-paper-bg);
}

.cec-meta-badges {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.cec-meta-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #ffffff;
  border: 1px solid var(--cec-border-base);
  padding: 3px 10px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--cec-text-body);
}

/* Table of Contents */
.cec-toc-card {
  background: #f8fafc;
  border: 1px solid var(--cec-border-base);
  border-radius: 14px;
  padding: 24px 28px;
  margin: 32px 0 44px;
}

.cec-toc-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--cec-border-base);
  padding-bottom: 12px;
}

.cec-toc-title {
  font-family: var(--cec-font-display);
  font-size: 0.95rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--cec-text-heading);
  display: flex;
  align-items: center;
  gap: 8px;
}

.cec-toc-title svg {
  width: 18px;
  height: 18px;
  fill: var(--cec-brand-primary);
}

.cec-toc-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 24px;
  list-style: none;
  counter-reset: toc-count;
}

.cec-toc-item {
  counter-increment: toc-count;
  font-size: 0.925rem;
}

.cec-toc-item a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  color: #334155;
  font-weight: 500;
  text-decoration: none;
  padding: 4px 6px;
  border-radius: 6px;
  transition: all 0.15s ease;
}

.cec-toc-item a::before {
  content: counter(toc-count) ".";
  font-family: var(--cec-font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--cec-brand-primary);
  min-width: 18px;
}

.cec-toc-item a:hover {
  color: var(--cec-brand-accent);
  background: rgba(37, 99, 235, 0.06);
  text-decoration: none;
}

/* Article Typography */
.cec-content-flow h2 {
  font-family: var(--cec-font-display);
  font-size: 1.625rem;
  font-weight: 800;
  color: var(--cec-text-heading);
  letter-spacing: -0.02em;
  margin: 48px 0 18px;
  padding-top: 16px;
  border-top: 1px solid var(--cec-border-base);
  display: flex;
  align-items: center;
  gap: 10px;
}

.cec-content-flow h2:first-of-type {
  border-top: none;
  padding-top: 0;
  margin-top: 24px;
}

.cec-content-flow h3 {
  font-family: var(--cec-font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--cec-text-heading);
  letter-spacing: -0.01em;
  margin: 32px 0 12px;
}

.cec-content-flow h4 {
  font-family: var(--cec-font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--cec-text-heading);
  margin: 20px 0 8px;
}

.cec-content-flow p {
  margin-bottom: 20px;
  font-size: 1rem;
  line-height: 1.8;
  color: #334155;
}

.cec-content-flow strong {
  font-weight: 700;
  color: var(--cec-text-heading);
}

.cec-content-flow em {
  font-style: italic;
}

.cec-content-flow ul,
.cec-content-flow ol {
  margin: 0 0 24px 20px;
  padding-left: 10px;
}

.cec-content-flow li {
  margin-bottom: 10px;
  line-height: 1.7;
}

/* Callout Boxes (Info, Warning, Danger, Notice) */
.cec-callout {
  border-radius: 12px;
  padding: 22px 24px;
  margin: 32px 0;
  border: 1px solid transparent;
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.cec-callout-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  margin-top: 2px;
}

.cec-callout-body {
  flex: 1;
}

.cec-callout-body h4 {
  margin: 0 0 8px;
  font-family: var(--cec-font-display);
  font-size: 1.05rem;
  font-weight: 700;
}

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

/* Callout Themes */
.cec-callout-primary {
  background: #f0f7ff;
  border-color: #bfdbfe;
  color: #1e3a8a;
}
.cec-callout-primary h4 { color: #1e3a8a; }
.cec-callout-primary svg { fill: #2563eb; }

.cec-callout-warning {
  background: var(--cec-amber-bg);
  border-color: var(--cec-amber-border);
  color: #78350f;
}
.cec-callout-warning h4 { color: #92400e; }
.cec-callout-warning svg { fill: #d97706; }

.cec-callout-danger {
  background: var(--cec-rose-bg);
  border-color: var(--cec-rose-border);
  color: #7f1d1d;
}
.cec-callout-danger h4 { color: #991b1b; }
.cec-callout-danger svg { fill: #dc2626; }

.cec-callout-success {
  background: var(--cec-emerald-bg);
  border-color: var(--cec-emerald-border);
  color: #064e3b;
}
.cec-callout-success h4 { color: #065f46; }
.cec-callout-success svg { fill: #059669; }

/* Numbered Steps Architecture */
.cec-steps-container {
  margin: 32px 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.cec-step-card {
  display: flex;
  gap: 18px;
  background: #ffffff;
  border: 1px solid var(--cec-border-base);
  border-radius: 12px;
  padding: 20px 22px;
  box-shadow: var(--cec-shadow-xs);
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.cec-step-card:hover {
  border-color: #cbd5e1;
  box-shadow: var(--cec-shadow-sm);
  transform: translateY(-1px);
}

.cec-step-number {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--cec-brand-primary), var(--cec-brand-accent));
  color: #ffffff;
  font-family: var(--cec-font-display);
  font-weight: 800;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.3);
}

.cec-step-body {
  flex: 1;
}

.cec-step-body h4 {
  margin: 0 0 6px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--cec-text-heading);
}

.cec-step-body p {
  margin: 0 0 8px;
  font-size: 0.95rem;
  color: #475569;
}

.cec-step-body p:last-child {
  margin-bottom: 0;
}

.cec-substeps {
  list-style: none;
  margin: 10px 0 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.cec-substeps li {
  margin: 0;
  padding: 8px 12px;
  background: #f8fafc;
  border-left: 3px solid var(--cec-brand-primary);
  border-radius: 0 6px 6px 0;
  font-size: 0.9rem;
  color: var(--cec-text-body);
}

/* Feature Cards Grid */
.cec-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin: 28px 0;
}

.cec-feature-card {
  background: #f8fafc;
  border: 1px solid var(--cec-border-base);
  border-radius: 12px;
  padding: 22px;
  transition: all 0.2s ease;
}

.cec-feature-card:hover {
  background: #ffffff;
  border-color: #cbd5e1;
  box-shadow: var(--cec-shadow-sm);
  transform: translateY(-2px);
}

.cec-feature-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.cec-feature-icon-badge {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: rgba(37, 99, 235, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.cec-feature-icon-badge svg {
  width: 18px;
  height: 18px;
  fill: var(--cec-brand-primary);
}

.cec-feature-card h4 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--cec-text-heading);
}

.cec-feature-card p {
  margin: 0;
  font-size: 0.925rem;
  color: var(--cec-text-muted);
  line-height: 1.6;
}

/* Data Tables */
.cec-table-wrapper {
  margin: 28px 0;
  border: 1px solid var(--cec-border-base);
  border-radius: 12px;
  overflow-x: auto;
  box-shadow: var(--cec-shadow-xs);
  background: #ffffff;
}

.cec-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.925rem;
}

.cec-table th {
  background: #f8fafc;
  color: #1e293b;
  font-family: var(--cec-font-display);
  font-weight: 700;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 14px 18px;
  border-bottom: 2px solid var(--cec-border-base);
}

.cec-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--cec-border-base);
  color: var(--cec-text-body);
  line-height: 1.6;
  vertical-align: top;
}

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

.cec-table tr:hover td {
  background-color: #fbfcfe;
}

.cec-table td.strong-col {
  font-weight: 600;
  color: var(--cec-text-heading);
  background-color: #fbfcfe;
  min-width: 140px;
}

.cec-tag-pill {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 6px;
  background: #f1f5f9;
  color: #475569;
  border: 1px solid #e2e8f0;
}

.cec-tag-pill.blue {
  background: #eff6ff;
  color: #1d4ed8;
  border-color: #bfdbfe;
}

.cec-tag-pill.green {
  background: #ecfdf5;
  color: #047857;
  border-color: #a7f3d0;
}

/* Code Snippet Blocks */
.cec-code-block {
  background: #0f172a;
  color: #e2e8f0;
  font-family: var(--cec-font-mono);
  font-size: 0.875rem;
  padding: 14px 18px;
  border-radius: 8px;
  margin: 12px 0;
  border: 1px solid #1e293b;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  overflow-x: auto;
}

.cec-code-block code {
  color: #38bdf8;
}

.cec-copy-btn {
  background: #1e293b;
  color: #94a3b8;
  border: 1px solid #334155;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  cursor: pointer;
  transition: all 0.15s ease;
  flex-shrink: 0;
}

.cec-copy-btn:hover {
  background: #334155;
  color: #ffffff;
}

/* Verified Official Download Banner Box */
.cec-official-download-box {
  background: linear-gradient(135deg, #091326 0%, #111d38 100%);
  border: 1px solid #1e3a8a;
  border-radius: 16px;
  padding: 36px 32px;
  margin: 36px 0;
  color: #f8fafc;
  text-align: center;
  box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.25);
  position: relative;
  overflow: hidden;
}

.cec-official-download-box::before {
  content: "";
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.25) 0%, transparent 70%);
  pointer-events: none;
}

.cec-download-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.4);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 4px 12px;
  border-radius: 9999px;
  margin-bottom: 16px;
}

.cec-official-download-box h3 {
  font-family: var(--cec-font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 10px;
}

.cec-official-download-box p {
  color: #cbd5e1;
  max-width: 620px;
  margin: 0 auto 24px;
  font-size: 0.98rem;
  line-height: 1.65;
}

/* CTA Buttons */
.cec-btn-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #ffffff !important;
  font-family: var(--cec-font-display);
  font-weight: 700;
  font-size: 1rem;
  padding: 14px 28px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.4);
  text-decoration: none !important;
  transition: all 0.2s ease;
  cursor: pointer;
}

.cec-btn-cta:hover {
  background: linear-gradient(135deg, #1d4ed8, #1e40af);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.5);
}

.cec-btn-cta svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
  transition: transform 0.2s ease;
}

.cec-btn-cta:hover svg {
  transform: translateX(3px);
}

.cec-btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: #ffffff;
  color: var(--cec-brand-primary) !important;
  font-family: var(--cec-font-display);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 12px 24px;
  border-radius: 10px;
  border: 1px solid #cbd5e1;
  text-decoration: none !important;
  transition: all 0.2s ease;
}

.cec-btn-secondary:hover {
  background: #f8fafc;
  border-color: #94a3b8;
  transform: translateY(-1px);
}

.cec-official-download-box small {
  display: block;
  margin-top: 18px;
  color: #94a3b8;
  font-size: 0.8rem;
}

/* FAQ Accordion */
.cec-faq-container {
  margin: 32px 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.cec-faq-item {
  background: #ffffff;
  border: 1px solid var(--cec-border-base);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.cec-faq-item[open] {
  border-color: #93c5fd;
  box-shadow: var(--cec-shadow-sm);
}

.cec-faq-summary {
  padding: 18px 22px;
  font-family: var(--cec-font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--cec-text-heading);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
  user-select: none;
}

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

.cec-faq-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.25s ease, background-color 0.2s ease;
}

.cec-faq-icon svg {
  width: 12px;
  height: 12px;
  fill: #475569;
}

.cec-faq-item[open] .cec-faq-icon {
  transform: rotate(180deg);
  background: var(--cec-brand-light);
}

.cec-faq-item[open] .cec-faq-icon svg {
  fill: var(--cec-brand-primary);
}

.cec-faq-body {
  padding: 0 22px 20px;
  color: #475569;
  font-size: 0.96rem;
  line-height: 1.7;
}

/* Back to Top Floating Button */
.cec-back-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #0f172a;
  color: #ffffff;
  border: 1px solid #1e293b;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  z-index: 800;
}

.cec-back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.cec-back-to-top:hover {
  background: var(--cec-brand-primary);
  transform: translateY(-2px);
}

.cec-back-to-top svg {
  width: 20px;
  height: 20px;
  fill: #ffffff;
}

/* Site Footer */
.cec-footer {
  background-color: #070d19;
  border-top: 1px solid var(--cec-dark-border);
  color: var(--cec-dark-muted);
  padding: 60px 24px 40px;
  font-size: 0.875rem;
  margin-top: auto;
}

.cec-footer-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.cec-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--cec-dark-border);
}

.cec-footer-brand-title {
  font-family: var(--cec-font-display);
  font-size: 1.15rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 12px;
}

.cec-footer-desc {
  line-height: 1.65;
  color: #94a3b8;
  max-width: 440px;
}

.cec-footer-heading {
  font-family: var(--cec-font-display);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #f1f5f9;
  margin-bottom: 16px;
}

.cec-footer-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.cec-footer-nav-list a {
  color: #94a3b8;
  text-decoration: none;
  transition: color 0.15s ease;
}

.cec-footer-nav-list a:hover {
  color: #60a5fa;
  text-decoration: underline;
}

.cec-footer-disclaimer-box {
  background: #0b1324;
  border: 1px solid #1e293b;
  border-radius: 10px;
  padding: 20px 24px;
  margin-bottom: 24px;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: #818cf8;
}

.cec-footer-disclaimer-box p {
  color: #94a3b8;
  margin-bottom: 8px;
}

.cec-footer-disclaimer-box p:last-child {
  margin-bottom: 0;
}

.cec-footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  font-size: 0.8rem;
  color: #64748b;
  flex-wrap: wrap;
}

/* Responsive Media Queries */
@media (max-width: 860px) {
  .cec-paper {
    padding: 32px 24px;
  }

  .cec-hero-title {
    font-size: 2rem;
  }

  .cec-toc-list {
    grid-template-columns: 1fr;
  }

  .cec-grid-2 {
    grid-template-columns: 1fr;
  }

  .cec-footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

@media (max-width: 680px) {
  .cec-mobile-toggle {
    display: flex;
  }

  .cec-nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #0a101d;
    border-bottom: 1px solid var(--cec-dark-border);
    flex-direction: column;
    padding: 16px;
    gap: 8px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
  }

  .cec-nav-menu.open {
    display: flex;
  }

  .cec-nav-item a {
    width: 100%;
  }

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

  .cec-paper {
    padding: 24px 16px;
    border-radius: 12px;
  }

  .cec-step-card {
    flex-direction: column;
    gap: 12px;
  }

  .cec-callout {
    flex-direction: column;
    gap: 10px;
  }

  .cec-official-download-box {
    padding: 24px 18px;
  }
}