/* ═══════════════════════════════════════════════════════════
   WINDI NOIR — Internal Pages Design System v2.0
   "The document doesn't just exist. It proves."
   Shared across all 32 documentation pages
   ═══════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:opsz,wght@12..96,200;12..96,400;12..96,600;12..96,800&family=Outfit:wght@300;400;500;600&family=JetBrains+Mono:wght@300;400;500&display=swap');

:root {
  /* ── Noir Canvas ── */
  --void: #06060c;
  --surface-0: #0a0a14;
  --surface-1: #0f0f1c;
  --surface-2: #15152a;
  --surface-3: #1c1c36;
  --surface-glass: rgba(15, 15, 28, 0.72);
  --surface-glass-light: rgba(25, 25, 50, 0.45);

  /* ── Luminous Gold System ── */
  --gold: #c9a227;
  --gold-bright: #e2be3a;
  --gold-dim: #8a7020;
  --gold-glow: rgba(201, 162, 39, 0.15);
  --gold-glow-strong: rgba(201, 162, 39, 0.3);
  --gold-line: rgba(201, 162, 39, 0.25);

  /* ── Text Hierarchy ── */
  --text-primary: #e8e6e0;
  --text-secondary: #9896a4;
  --text-tertiary: #5e5c6e;
  --text-inverse: #0a0a14;

  /* ── Governance Signal Colors ── */
  --signal-core: #d44a5a;
  --signal-core-dim: rgba(212, 74, 90, 0.15);
  --signal-flow: #d49a3a;
  --signal-flow-dim: rgba(212, 154, 58, 0.15);
  --signal-gov: #3a8ad4;
  --signal-gov-dim: rgba(58, 138, 212, 0.15);
  --signal-safe: #3ab87a;
  --signal-safe-dim: rgba(58, 184, 122, 0.15);

  /* ── Borders ── */
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-medium: rgba(255, 255, 255, 0.1);
  --border-gold: rgba(201, 162, 39, 0.2);
  --border-glow: rgba(201, 162, 39, 0.4);

  /* ── Typography ── */
  --font-display: 'Bricolage Grotesque', Georgia, serif;
  --font-body: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  /* ── Layout ── */
  --sidebar-w: 260px;
  --header-h: 56px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  /* ── Transitions ── */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ═══════════ KLAR (LIGHT) MODE ═══════════ */
[data-theme="light"] {
  --void: #f5f2ec;
  --surface-0: #faf8f4;
  --surface-1: #ffffff;
  --surface-2: #f0ece4;
  --surface-3: #e8e4da;
  --surface-glass: rgba(255, 255, 255, 0.78);
  --surface-glass-light: rgba(245, 242, 236, 0.5);
  --gold: #9a7b10;
  --gold-bright: #b8930e;
  --gold-dim: #7a6510;
  --gold-glow: rgba(154, 123, 16, 0.08);
  --gold-glow-strong: rgba(154, 123, 16, 0.15);
  --gold-line: rgba(154, 123, 16, 0.15);
  --text-primary: #1a1a2e;
  --text-secondary: #4a4a6a;
  --text-tertiary: #8a889a;
  --text-inverse: #ffffff;
  --signal-core: #a53040;
  --signal-core-dim: rgba(165, 48, 64, 0.08);
  --signal-flow: #a07520;
  --signal-flow-dim: rgba(160, 117, 32, 0.08);
  --signal-gov: #1a6aa0;
  --signal-gov-dim: rgba(26, 106, 160, 0.08);
  --signal-safe: #2a8a5a;
  --signal-safe-dim: rgba(42, 138, 90, 0.08);
  --border-subtle: rgba(0, 0, 0, 0.06);
  --border-medium: rgba(0, 0, 0, 0.1);
  --border-gold: rgba(154, 123, 16, 0.2);
  --border-glow: rgba(154, 123, 16, 0.35);
}

/* Smooth theme transition */
body, body * {
  transition: background-color 0.4s ease, color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.status-dot, .scroll-progress-bar, .bg-grid, .bg-glow, .bg-orb { transition: none !important; }

/* Light mode overrides */
[data-theme="light"] .bg-grid,
[data-theme="light"] .bg-glow,
[data-theme="light"] .bg-orb { opacity: 0.03; }

[data-theme="light"] .page-footer { background: var(--surface-0); }

/* ═══════════ RESETS ═══════════ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  background: var(--void);
  color: var(--text-primary);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--gold);
  color: var(--void);
}

/* ═══════════ LAYOUT WRAPPER ═══════════ */
.page-wrapper {
  display: flex;
  min-height: 100vh;
}

.page-content,
.main-content {
  flex: 1;
  margin-left: var(--sidebar-w);
  padding: calc(var(--header-h) + 40px) 60px 80px;
  max-width: 900px;
}

@media (max-width: 960px) {
  .page-content,
  .main-content {
    margin-left: 0;
    padding: calc(var(--header-h) + 24px) 20px 60px;
  }
}

/* ═══════════ HEADER — Floating Glass Bar ═══════════ */
.site-header {
  position: fixed;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 24px);
  max-width: 1440px;
  height: var(--header-h);
  background: var(--surface-glass);
  backdrop-filter: blur(24px) saturate(1.2);
  -webkit-backdrop-filter: blur(24px) saturate(1.2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 1000;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.header-logo {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  color: var(--gold);
  letter-spacing: 2px;
}

.header-divider {
  width: 1px;
  height: 20px;
  background: var(--border-medium);
}

.header-subtitle {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-tertiary);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Status indicator */
.header-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--signal-safe);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* Theme toggle */
.theme-toggle {
  background: var(--surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  cursor: pointer;
  position: relative;
  width: 52px;
  height: 26px;
  transition: all 0.3s var(--ease-out-expo);
}

.theme-toggle:hover { border-color: var(--gold-line); }

.theme-toggle-track {
  position: absolute;
  inset: 2px;
  border-radius: 20px;
  background: var(--surface-3);
}

.theme-toggle-thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  transition: all 0.35s var(--ease-spring);
  box-shadow: 0 1px 4px rgba(0,0,0,0.2);
  z-index: 1;
}

[data-theme="light"] .theme-toggle-thumb {
  left: calc(100% - 23px);
}

/* Language switcher */
.lang-switcher {
  display: flex;
  gap: 2px;
  background: var(--surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 2px;
}

.lang-btn {
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 4px 8px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  background: transparent;
  color: var(--text-tertiary);
  letter-spacing: 1px;
  transition: all 0.2s;
}

.lang-btn.active {
  background: var(--gold);
  color: var(--text-inverse);
}

.lang-btn:hover:not(.active) {
  color: var(--text-primary);
}

/* Mobile toggle */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.mobile-toggle span {
  width: 18px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 1px;
  transition: all 0.3s;
}

@media (max-width: 960px) {
  .mobile-toggle { display: flex; }
  .header-subtitle { display: none; }
}

/* ═══════════ SIDEBAR — Left Navigation ═══════════ */
.sidebar-left {
  position: fixed;
  top: calc(var(--header-h) + 24px);
  left: 12px;
  width: var(--sidebar-w);
  height: calc(100vh - var(--header-h) - 36px);
  background: var(--surface-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px 0;
  overflow-y: auto;
  z-index: 900;
}

.sidebar-section {
  padding: 0 16px;
  margin-bottom: 24px;
}

.sidebar-label {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 2px;
  padding: 0 12px;
  margin-bottom: 8px;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 13px;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
  border-left: 2px solid transparent;
}

.sidebar-link:hover {
  background: var(--gold-glow);
  color: var(--text-primary);
  border-left-color: var(--gold-dim);
}

.sidebar-link.active,
.sidebar-link-active,
.sidebar-link.sidebar-link-active {
  background: var(--gold-glow);
  color: var(--gold);
  border-left-color: var(--gold);
}

.sidebar-icon {
  font-size: 14px;
  width: 20px;
  text-align: center;
}

@media (max-width: 960px) {
  .sidebar-left {
    left: -300px;
    transition: left 0.3s var(--ease-out-expo);
    z-index: 999;
  }
  .sidebar-left.open { left: 12px; }
}

/* Right Sidebar (TOC) */
.sidebar-right,
.sidebar.sidebar-right {
  position: fixed;
  top: calc(var(--header-h) + 40px);
  right: 20px;
  width: 200px;
  padding: 16px;
  font-size: 13px;
}
.sidebar-right .sidebar-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-tertiary);
  margin-bottom: 12px;
}
.sidebar-right .toc-link {
  display: block;
  padding: 6px 0;
  color: var(--text-secondary);
  text-decoration: none;
  border-left: 2px solid transparent;
  padding-left: 12px;
  transition: all 0.2s ease;
}
.sidebar-right .toc-link:hover {
  color: var(--gold);
  border-left-color: var(--gold-dim);
}
@media (max-width: 1200px) {
  .sidebar-right { display: none; }
}

/* ═══════════ TYPOGRAPHY ═══════════ */
h1 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  line-height: 1.15;
  color: var(--text-primary);
  margin-bottom: 24px;
}

h2 {
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 600;
  line-height: 1.2;
  color: var(--text-primary);
  margin-top: 48px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-subtle);
}

h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--gold);
  margin-top: 32px;
  margin-bottom: 12px;
}

h4 {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 24px;
  margin-bottom: 8px;
}

p {
  margin-bottom: 16px;
  color: var(--text-secondary);
  font-size: 15px;
}

a {
  color: var(--gold);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--gold-bright);
}

strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* ═══════════ CONTENT BLOCKS ═══════════ */

/* Governance boxes */
.gov-box {
  background: var(--surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  margin: 24px 0;
}

.gov-box-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--gold);
}

/* Code blocks */
pre, code {
  font-family: var(--font-mono);
}

pre {
  background: var(--surface-0);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 20px;
  margin: 20px 0;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-secondary);
}

code {
  background: var(--surface-2);
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 13px;
  color: var(--gold);
}

pre code {
  background: none;
  padding: 0;
  color: inherit;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 14px;
}

th {
  background: var(--surface-2);
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-gold);
}

td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

tr:hover td {
  background: var(--gold-glow);
}

/* Spec Table (NOIR) */
.spec-table-wrapper {
  overflow-x: auto;
  margin: 24px 0;
}
.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.spec-table th {
  background: var(--surface-2);
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-gold);
}
.spec-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}
.spec-table tr:hover td {
  background: var(--gold-glow);
}

/* Status Badges */
.status-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 3px 8px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.status-active { background: var(--signal-safe); color: var(--void); }
.status-warning { background: var(--signal-flow); color: var(--void); }
.status-high { background: var(--signal-core); color: #fff; }

/* Blockquotes */
blockquote {
  border-left: 3px solid var(--gold);
  padding: 16px 24px;
  margin: 24px 0;
  background: var(--gold-glow);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--text-secondary);
}

blockquote p { margin-bottom: 0; }

/* Lists */
ul, ol {
  margin: 16px 0;
  padding-left: 24px;
  color: var(--text-secondary);
}

li {
  margin-bottom: 8px;
  font-size: 15px;
}

li::marker {
  color: var(--gold-dim);
}

/* Horizontal rule */
hr {
  border: none;
  height: 1px;
  background: var(--border-subtle);
  margin: 40px 0;
}

/* ═══════════ TRILINGUAL CONTENT ═══════════ */
[lang-content] { display: none; }
[lang-content="en"] { display: block; }  /* Default: English */

body[data-lang="de"] [lang-content="de"] { display: block; }
body[data-lang="de"] [lang-content="en"],
body[data-lang="de"] [lang-content="pt"] { display: none; }

body[data-lang="en"] [lang-content="en"] { display: block; }
body[data-lang="en"] [lang-content="de"],
body[data-lang="en"] [lang-content="pt"] { display: none; }

body[data-lang="pt"] [lang-content="pt"] { display: block; }
body[data-lang="pt"] [lang-content="de"],
body[data-lang="pt"] [lang-content="en"] { display: none; }

/* CSS Class-based Trilingual (l-de/l-en/l-pt for inline, lb-de/lb-en/lb-pt for block) */
.l-de, .l-en, .l-pt { display: none; }
.lb-de, .lb-en, .lb-pt { display: none; }

body[data-lang="de"] .l-de { display: inline; }
body[data-lang="de"] .lb-de { display: block; }
body[data-lang="de"] .l-en, body[data-lang="de"] .l-pt { display: none; }
body[data-lang="de"] .lb-en, body[data-lang="de"] .lb-pt { display: none; }

body[data-lang="en"] .l-en { display: inline; }
body[data-lang="en"] .lb-en { display: block; }
body[data-lang="en"] .l-de, body[data-lang="en"] .l-pt { display: none; }
body[data-lang="en"] .lb-de, body[data-lang="en"] .lb-pt { display: none; }

body[data-lang="pt"] .l-pt { display: inline; }
body[data-lang="pt"] .lb-pt { display: block; }
body[data-lang="pt"] .l-de, body[data-lang="pt"] .l-en { display: none; }
body[data-lang="pt"] .lb-de, body[data-lang="pt"] .lb-en { display: none; }

/* ═══════════ PAGE HEADER (NOIR TEMPLATE) ═══════════ */
.page-header {
  padding: 40px 0 32px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--border-subtle);
}
.page-breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-tertiary);
  margin-bottom: 16px;
}
.page-breadcrumb a {
  color: var(--text-secondary);
  text-decoration: none;
}
.page-breadcrumb a:hover { color: var(--gold); }
.breadcrumb-sep {
  margin: 0 8px;
  color: var(--text-tertiary);
}
.page-meta-bar {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
}
.page-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 4px 10px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.page-tag-gov { background: var(--gold-glow); color: var(--gold); }
.page-date {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-tertiary);
}
.page-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  line-height: 1.15;
  color: var(--text-primary);
  margin-bottom: 12px;
}
.page-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}
.page-divider {
  height: 1px;
  background: var(--border-subtle);
  margin-top: 24px;
}

/* ═══════════ CONTENT PROSE ═══════════ */
.content-prose {
  max-width: 100%;
}
.content-prose p {
  margin-bottom: 16px;
}

/* ═══════════ DOC QUOTE ═══════════ */
.doc-quote {
  border-left: 3px solid var(--gold);
  padding: 16px 24px;
  margin: 24px 0;
  background: var(--surface-1);
  border-radius: 0 8px 8px 0;
  font-style: italic;
}
.doc-quote p {
  margin: 0 0 8px 0;
  color: var(--text-secondary);
}
.doc-quote cite {
  font-size: 12px;
  color: var(--gold);
  font-style: normal;
}

/* ═══════════ CTA BOX ═══════════ */
.cta-box {
  background: var(--surface-1);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--gold);
  border-radius: 8px;
  padding: 20px 24px;
  margin: 24px 0;
}
.cta-content h3 {
  margin-top: 0;
  margin-bottom: 12px;
  color: var(--gold);
}
.cta-content p {
  margin: 0;
}

/* ═══════════ PAGE FOOTER (NOIR) ═══════════ */
.page-footer {
  margin-top: 60px;
  padding-top: 32px;
  border-top: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-tertiary);
}
.page-footer-meta {
  display: flex;
  gap: 24px;
  margin-bottom: 12px;
}
.page-footer-quittung {
  margin-bottom: 8px;
}
.page-footer-principle {
  font-style: italic;
  color: var(--text-secondary);
}

/* ═══════════ PAGE HEADER HERO ═══════════ */
.page-hero {
  position: relative;
  padding: 60px 0 40px;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--border-subtle);
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: -60px;
  right: -60px;
  bottom: 0;
  background:
    radial-gradient(ellipse at 20% 50%, var(--gold-glow) 0%, transparent 60%),
    linear-gradient(180deg, var(--surface-1) 0%, transparent 100%);
  z-index: -1;
}

.page-hero-label {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 12px;
}

.page-hero h1 {
  margin-bottom: 12px;
}

.page-hero-desc {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 1.7;
}

/* ═══════════ FOOTER ═══════════ */
.page-footer {
  margin-top: 80px;
  padding: 40px 0;
  border-top: 1px solid var(--border-subtle);
  text-align: center;
}

.footer-receipt {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-tertiary);
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--gold-dim);
  letter-spacing: 2px;
}

.footer-legal {
  font-size: 11px;
  color: var(--text-tertiary);
  margin-top: 16px;
}

/* ═══════════ SCROLL PROGRESS ═══════════ */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  z-index: 9999;
}

.scroll-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--gold-dim), var(--gold), var(--gold-bright));
  width: 0%;
  transition: width 0.1s linear;
}

/* ═══════════ GOVERNANCE LEVELS (TR-002) ═══════════ */

/* Level Cards */
.level-card {
  background: var(--surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  margin: 24px 0;
  position: relative;
  border-left: 4px solid var(--border-subtle);
}
.level-card.level-low { border-left-color: var(--signal-safe); }
.level-card.level-medium { border-left-color: var(--signal-flow); }
.level-card.level-high { border-left-color: var(--signal-core); }

.level-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}
.level-low .level-badge { color: var(--signal-safe); }
.level-medium .level-badge { color: var(--signal-flow); }
.level-high .level-badge { color: var(--signal-core); }

.level-badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}
.level-low .dot { background: var(--signal-safe); }
.level-medium .dot { background: var(--signal-flow); }
.level-high .dot { background: var(--signal-core); }

.level-name {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.level-principle {
  margin-top: 16px;
  padding: 12px 16px;
  background: var(--surface-2);
  border-radius: var(--radius-sm);
  font-style: italic;
  color: var(--text-secondary);
  border-left: 2px solid var(--border-medium);
}

/* Requirements Grid */
.req-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 20px;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 13px;
}
@media (max-width: 600px) { .req-grid { grid-template-columns: 1fr; } }

.req-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
  color: var(--text-secondary);
}
.req-yes { color: var(--signal-safe); font-weight: 600; }
.req-no { color: var(--text-tertiary); }

/* Flow Visual */
.flow-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin: 32px 0;
  padding: 24px 0;
  flex-wrap: wrap;
}
.flow-node {
  text-align: center;
  padding: 16px 24px;
  border-radius: var(--radius-sm);
  min-width: 140px;
  border: 2px solid;
}
.flow-node-low { background: var(--signal-safe-dim); border-color: var(--signal-safe); }
.flow-node-medium { background: var(--signal-flow-dim); border-color: var(--signal-flow); }
.flow-node-high { background: var(--signal-core-dim); border-color: var(--signal-core); }

.flow-node-label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 4px;
}
.flow-node-low .flow-node-label { color: var(--signal-safe); }
.flow-node-medium .flow-node-label { color: var(--signal-flow); }
.flow-node-high .flow-node-label { color: var(--signal-core); }

.flow-node-name {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}
.flow-arrow {
  font-size: 24px;
  color: var(--text-tertiary);
  padding: 0 12px;
}
@media (max-width: 600px) {
  .flow-visual { flex-direction: column; }
  .flow-arrow { transform: rotate(90deg); padding: 8px 0; }
}

/* Code Blocks */
.code-block {
  background: var(--surface-0);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  margin: 20px 0;
  overflow: hidden;
}
.code-header {
  background: var(--surface-2);
  padding: 8px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border-subtle);
}
.code-header .dot-r { width: 8px; height: 8px; border-radius: 50%; background: #ff5f57; }
.code-header .dot-y { width: 8px; height: 8px; border-radius: 50%; background: #ffbd2e; }
.code-header .dot-g { width: 8px; height: 8px; border-radius: 50%; background: #28c840; }
.code-block pre {
  padding: 16px 20px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-secondary);
  margin: 0;
  background: transparent;
  border: none;
}
.code-block .key { color: var(--signal-gov); }
.code-block .str { color: var(--signal-safe); }
.code-block .num { color: var(--signal-flow); }
.code-block .comment { color: var(--text-tertiary); font-style: italic; }

/* Architecture Diagram */
.arch-diagram {
  background: var(--surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 24px;
  margin: 24px 0;
  overflow-x: auto;
}
.arch-diagram pre {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.4;
  color: var(--text-secondary);
  text-align: left;
  margin: 0 auto;
  display: inline-block;
  background: transparent;
  border: none;
  padding: 0;
}

/* Figure Block */
.figure-block {
  margin: 28px 0;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.figure-image-area {
  padding: 16px;
  background: var(--surface-0);
  min-height: 200px;
}
.figure-image-area img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
}
.figure-caption {
  padding: 12px 16px;
  background: var(--surface-1);
  border-top: 1px solid var(--border-subtle);
  font-size: 13px;
  color: var(--text-secondary);
}
.figure-caption strong { color: var(--gold); }

/* Definition Block */
.def-block {
  background: var(--surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  margin: 20px 0;
}
.def-block dt {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
  margin-top: 16px;
}
.def-block dt:first-child { margin-top: 0; }
.def-block dd {
  font-size: 14px;
  color: var(--text-secondary);
  padding-left: 12px;
  border-left: 2px solid var(--border-subtle);
  margin-left: 0;
}

/* Abstract Block */
.abstract-block {
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--gold);
  background: var(--surface-1);
  padding: 24px;
  margin-bottom: 32px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.abstract-label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--gold);
  margin-bottom: 12px;
}
.abstract-block p {
  font-size: 14px;
  line-height: 1.7;
}
.keywords {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-tertiary);
}
.keywords strong {
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Meta Bar */
.meta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  padding: 16px 0;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-tertiary);
}
.meta-bar strong { color: var(--text-secondary); }

/* Comparison Table Enhanced */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 13px;
}
.comparison-table th {
  padding: 10px 12px;
  text-align: left;
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.comparison-table th:first-child { background: var(--surface-2); color: var(--text-secondary); }
.comparison-table th.col-low { background: var(--signal-safe); color: var(--void); }
.comparison-table th.col-medium { background: var(--signal-flow); color: var(--void); }
.comparison-table th.col-high { background: var(--signal-core); color: #fff; }
.comparison-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-subtle);
}
.comparison-table .feat-name { font-weight: 500; color: var(--text-primary); }
.check { color: var(--signal-safe); font-weight: 600; }
.cross { color: var(--text-tertiary); }
.partial { color: var(--signal-flow); font-weight: 500; }

/* Footer Tagline */
.footer-tagline {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-top: 4px;
}
.footer-version {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-tertiary);
  margin-top: 12px;
  letter-spacing: 0.5px;
}

/* Authorship Notice */
.authorship-notice {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border-gold);
}

/* ═══════════ PRINT STYLES ═══════════ */
@media print {
  .site-header, .sidebar-left, .theme-toggle, .lang-switcher,
  .mobile-toggle, .scroll-progress { display: none !important; }

  .page-content {
    margin-left: 0 !important;
    padding: 20px !important;
    max-width: 100% !important;
  }

  body {
    background: white !important;
    color: black !important;
  }

  h1, h2, h3 { color: black !important; }
  a { color: #333 !important; }
}