:root {
  /* Invariant / Apex UI palette — brutalist, monochrome with brass accents */
  --bg-primary: #050505;
  --bg-secondary: #0a0a0a;
  --bg-tertiary: #111111;
  --bg-card: #0d0d0d;
  --bg-parchment: #f5f0e8;
  --bg-parchment-dim: #e8e0d4;

  --text-primary: #FFFFFF;
  --text-secondary: #888888;
  --text-dim: #555555;
  --text-dark: #1a1714;
  --text-dark-secondary: #4a443c;

  --brass: #d4a054;
  --brass-dim: rgba(212, 160, 84, 0.08);
  --oxblood: #9f1d1d;
  --oxblood-dim: rgba(159, 29, 29, 0.08);

  --border: rgba(255, 255, 255, 0.08);
  --border-light: rgba(255, 255, 255, 0.15);

  /* Confidence tag colors */
  --tag-documented: #22c55e;
  --tag-documented-bg: rgba(34, 197, 94, 0.08);
  --tag-contested: #f59e0b;
  --tag-contested-bg: rgba(245, 158, 11, 0.08);
  --tag-suppressed: #ef4444;
  --tag-suppressed-bg: rgba(239, 68, 68, 0.08);
  --tag-speculative: #555555;
  --tag-speculative-bg: rgba(85, 85, 85, 0.08);

  /* Status colors */
  --status-unsearched: #555555;
  --status-sampled: var(--brass);
  --status-surveyed: #22c55e;
  --status-exhausted: #3b82f6;

  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --font-document: 'Merriweather', 'Georgia', serif;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ═══ 4% Noise Overlay ═══ */
.noise {
  position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
  pointer-events: none; z-index: 9999; opacity: 0.04;
  background-image: url('data:image/svg+xml,%3Csvg viewBox=%220 0 200 200%22 xmlns=%22http://www.w3.org/2000/svg%22%3E%3Cfilter id=%22n%22%3E%3CfeTurbulence type=%22fractalNoise%22 baseFrequency=%220.65%22 numOctaves=%223%22 stitchTiles=%22stitch%22/%3E%3C/filter%3E%3Crect width=%22100%25%22 height=%22100%25%22 filter=%22url(%23n)%22/%3E%3C/svg%3E');
}

/* ═══ Layout ═══ */
.page { width: 100%; max-width: 1200px; margin: 0 auto; padding: 40px 24px 80px; position: relative; z-index: 10; }

/* ═══ Navigation ═══ */
.site-nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(5, 5, 5, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
  height: 52px;
}
.nav-brand {
  font-family: var(--font-mono); font-weight: 600;
  font-size: 0.85rem; letter-spacing: 0.2em;
  color: var(--text-primary);
  text-decoration: none; text-transform: uppercase;
}
.nav-links { display: flex; gap: 0; }
.nav-links a {
  font-family: var(--font-mono); font-size: 10px; font-weight: 500;
  color: var(--text-dim);
  text-decoration: none; letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 8px 16px;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}
.nav-links a:hover { color: var(--text-secondary); }
.nav-links a.active {
  color: var(--text-primary);
  border-bottom-color: var(--text-primary);
}

/* ═══ Hero ═══ */
.hero {
  text-align: center;
  padding: 160px 0 80px;
  position: relative;
}
.hero-title {
  font-family: var(--font-mono); font-weight: 600;
  font-size: clamp(3rem, 10vw, 7rem);
  letter-spacing: 0.15em;
  color: var(--text-primary);
  line-height: 0.95;
  text-shadow: 0 4px 24px rgba(0,0,0,0.5);
}
.hero-subtitle {
  font-family: var(--font-body); font-weight: 300;
  font-size: clamp(0.9rem, 2vw, 1.2rem);
  color: var(--text-secondary);
  max-width: 640px; margin: 28px auto 0;
  letter-spacing: 0.02em;
  line-height: 1.8;
}
.hero-companion {
  font-family: var(--font-mono);
  font-size: 0.65rem; font-weight: 400;
  color: var(--text-dim);
  letter-spacing: 0.15em; text-transform: uppercase;
  margin-top: 32px;
}
.hero-companion a { color: var(--text-secondary); text-decoration: none; }
.hero-companion a:hover { color: var(--text-primary); }

/* ═══ Stats Row ═══ */
.stats-row {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; margin-bottom: 80px;
  background: var(--border);
  border: 1px solid var(--border);
}
.stat-card {
  text-align: center; padding: 32px 16px;
  background: var(--bg-primary);
}
.stat-val {
  font-family: var(--font-mono); font-weight: 600;
  font-size: 2rem; color: var(--text-primary);
  letter-spacing: 0.05em;
}
.stat-label {
  font-family: var(--font-mono);
  font-size: 9px; color: var(--text-dim);
  text-transform: uppercase; letter-spacing: 0.15em;
  margin-top: 8px;
}

/* ═══ Iron Rules ═══ */
.iron-rules {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  padding: 48px;
  margin-bottom: 64px;
}
.iron-rules h2 {
  font-family: var(--font-mono); font-weight: 600;
  font-size: 0.7rem; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--text-dim);
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.iron-rules ol {
  list-style: none; counter-reset: rule;
  display: flex; flex-direction: column; gap: 24px;
}
.iron-rules li {
  display: flex; align-items: flex-start; gap: 20px;
  font-family: var(--font-body); font-weight: 400;
  font-size: 0.9rem; color: var(--text-secondary);
  line-height: 1.8;
}
.iron-rules li::before {
  counter-increment: rule;
  content: '0' counter(rule);
  flex-shrink: 0;
  font-family: var(--font-mono); font-weight: 600;
  font-size: 0.7rem; color: var(--text-dim);
  letter-spacing: 0.1em;
  padding-top: 3px;
}
.iron-rules strong { color: var(--text-primary); font-weight: 600; }

/* ═══ Section Headers ═══ */
.section-header {
  margin-bottom: 48px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.section-header h1, .section-header h2 {
  font-family: var(--font-heading); font-weight: 900;
  letter-spacing: -0.03em; text-transform: uppercase;
  line-height: 1.1;
}
.section-header h1 { font-size: clamp(1.5rem, 4vw, 2.5rem); }
.section-header h2 { font-size: 1.3rem; }
.section-header .section-sub {
  font-size: 0.9rem; color: var(--text-secondary);
  margin-top: 8px;
}

/* ═══ Confidence Tags ═══ */
.tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 12px;
  font-family: var(--font-mono);
  font-size: 9px; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  border: 1px solid;
}
.tag::before {
  content: ''; width: 5px; height: 5px;
  border-radius: 50%; flex-shrink: 0;
}
.tag-documented { color: var(--tag-documented); background: var(--tag-documented-bg); border-color: rgba(34, 197, 94, 0.15); }
.tag-documented::before { background: var(--tag-documented); }
.tag-contested { color: var(--tag-contested); background: var(--tag-contested-bg); border-color: rgba(245, 158, 11, 0.15); }
.tag-contested::before { background: var(--tag-contested); }
.tag-suppressed { color: var(--tag-suppressed); background: var(--tag-suppressed-bg); border-color: rgba(239, 68, 68, 0.15); }
.tag-suppressed::before { background: var(--tag-suppressed); }
.tag-speculative { color: var(--tag-speculative); background: var(--tag-speculative-bg); border-color: rgba(85, 85, 85, 0.15); }
.tag-speculative::before { background: var(--tag-speculative); }

/* ═══ Link Type Tags ═══ */
.link-type {
  display: inline-flex; padding: 3px 10px;
  font-family: var(--font-mono); font-size: 9px;
  font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; border: 1px solid;
}
.link-type-textual { color: var(--brass); border-color: rgba(212, 160, 84, 0.2); background: var(--brass-dim); }
.link-type-chronology { color: #64748b; border-color: rgba(100, 116, 139, 0.2); background: rgba(100, 116, 139, 0.06); }
.link-type-provenance { color: #22c55e; border-color: rgba(34, 197, 94, 0.2); background: rgba(34, 197, 94, 0.06); }
.link-type-absence { color: #ef4444; border-color: rgba(239, 68, 68, 0.2); background: rgba(239, 68, 68, 0.06); }
.link-type-thematic { color: #555; border-color: rgba(85, 85, 85, 0.2); background: rgba(85, 85, 85, 0.06); }

/* ═══ Tier Badges ═══ */
.tier-badge {
  display: inline-flex; align-items: center;
  padding: 3px 10px;
  font-family: var(--font-mono); font-size: 9px; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  background: var(--brass-dim);
  color: var(--brass);
  border: 1px solid rgba(212, 160, 84, 0.15);
}
.tier-badge-closed {
  background: rgba(85, 85, 85, 0.06);
  color: var(--text-dim);
  border-color: rgba(85, 85, 85, 0.15);
}

/* ═══ Status Badges ═══ */
.status-badge {
  display: inline-flex; padding: 3px 10px;
  font-family: var(--font-mono); font-size: 9px;
  font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; border: 1px solid;
}
.status-unsearched { color: var(--status-unsearched); border-color: rgba(85, 85, 85, 0.2); background: rgba(85, 85, 85, 0.06); }
.status-sampled { color: var(--status-sampled); border-color: rgba(212, 160, 84, 0.2); background: var(--brass-dim); }
.status-surveyed { color: var(--status-surveyed); border-color: rgba(34, 197, 94, 0.2); background: rgba(34, 197, 94, 0.06); }
.status-exhausted { color: var(--status-exhausted); border-color: rgba(59, 130, 246, 0.2); background: rgba(59, 130, 246, 0.06); }

/* ═══ Entry Cards ═══ */
.entry-grid { display: flex; flex-direction: column; gap: 1px; background: var(--border); }

.entry-card {
  display: flex; align-items: center; gap: 16px;
  padding: 16px 20px;
  background: var(--bg-primary);
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none; color: inherit;
}
.entry-card:hover {
  background: var(--bg-secondary);
}
.entry-id {
  font-family: var(--font-mono); font-size: 10px;
  color: var(--text-dim); letter-spacing: 0.08em;
  flex-shrink: 0; min-width: 60px;
}
.entry-title {
  font-family: var(--font-body);
  font-size: 0.9rem; font-weight: 500;
  color: var(--text-primary); flex-grow: 1;
}
.entry-meta {
  display: flex; align-items: center; gap: 8px;
  flex-shrink: 0;
}

/* ═══ Dig Cards ═══ */
.dig-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 1px; background: var(--border); }

.dig-card {
  background: var(--bg-primary);
  padding: 32px;
  cursor: pointer; transition: all 0.15s;
  text-decoration: none; color: inherit;
}
.dig-card:hover { background: var(--bg-secondary); }
.dig-card h3 {
  font-family: var(--font-heading); font-weight: 800;
  font-size: 1rem; margin-bottom: 8px;
  text-transform: uppercase; letter-spacing: -0.02em;
}
.dig-card p {
  font-size: 0.85rem; color: var(--text-secondary);
  line-height: 1.7; margin-bottom: 16px;
}
.dig-meta { display: flex; gap: 8px; flex-wrap: wrap; }

/* ═══ Document View (Parchment) ═══ */
.document {
  background: var(--bg-parchment);
  padding: 56px 48px;
  color: var(--text-dark);
  font-family: var(--font-document);
  font-size: 1rem;
  line-height: 1.85;
}
.document h1 {
  font-family: var(--font-heading); font-weight: 900;
  font-size: 1.3rem; color: var(--text-dark);
  text-transform: uppercase; letter-spacing: -0.02em;
  margin-bottom: 28px; padding-bottom: 20px;
  border-bottom: 2px solid var(--bg-parchment-dim);
}
.document h2 {
  font-family: var(--font-heading); font-weight: 800;
  font-size: 0.85rem;
  text-transform: uppercase; letter-spacing: 0.06em;
  margin-top: 40px; margin-bottom: 12px;
  color: #6b5c3e;
}
.document p { margin-bottom: 16px; }
.document strong { color: #1a1714; }
.document a { color: #8b6914; text-decoration: underline; }
.document code {
  font-family: var(--font-mono); font-size: 0.82em;
  background: var(--bg-parchment-dim); padding: 2px 6px;
}

/* ═══ Detail Page Layout ═══ */
.detail-layout { display: grid; grid-template-columns: 1fr 260px; gap: 1px; background: var(--border); }
.detail-main { background: var(--bg-primary); min-width: 0; }
.detail-sidebar {
  background: var(--bg-primary);
  position: sticky; top: 56px; align-self: start;
}
.sidebar-card {
  padding: 24px;
  border-bottom: 1px solid var(--border);
}
.sidebar-card h4 {
  font-family: var(--font-mono); font-weight: 600;
  font-size: 9px; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--text-dim);
  margin-bottom: 16px;
}
.sidebar-card .ref-link {
  display: block; padding: 4px 0;
  font-family: var(--font-body);
  font-size: 0.82rem; color: var(--text-secondary);
  text-decoration: none; transition: color 0.15s;
}
.sidebar-card .ref-link:hover { color: var(--text-primary); }

/* ═══ Compliance Warning ═══ */
.compliance-warning {
  background: var(--oxblood-dim);
  border: 1px solid rgba(159, 29, 29, 0.15);
  border-left: 3px solid var(--oxblood);
  padding: 20px 24px;
  font-family: var(--font-mono);
  font-size: 0.75rem; letter-spacing: 0.02em;
  color: rgba(239, 68, 68, 0.7);
  margin: 0 0 1px 0;
  line-height: 1.7;
}
.compliance-warning strong { color: #ef4444; }

/* ═══ Law Document ═══ */
.law-document { border-left: 3px solid var(--brass); }

/* ═══ Table ═══ */
.document table {
  width: 100%; border-collapse: collapse;
  margin: 16px 0; font-size: 0.88rem;
}
.document th {
  text-align: left; font-family: var(--font-mono);
  font-weight: 600; font-size: 9px;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: #6b5c3e; padding: 10px 12px;
  border-bottom: 2px solid var(--bg-parchment-dim);
}
.document td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--bg-parchment-dim);
  color: var(--text-dark-secondary);
}

/* ═══ Filter Bar ═══ */
.filter-bar {
  display: flex; gap: 0; margin-bottom: 0;
  border: 1px solid var(--border);
  border-bottom: none;
}
.filter-btn {
  padding: 10px 20px;
  font-family: var(--font-mono);
  font-size: 9px; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  background: var(--bg-primary);
  border: none; border-right: 1px solid var(--border);
  color: var(--text-dim);
  cursor: pointer; transition: all 0.15s;
}
.filter-btn:last-child { border-right: none; }
.filter-btn:hover { color: var(--text-secondary); background: var(--bg-secondary); }
.filter-btn.active { color: var(--text-primary); background: var(--bg-tertiary); }

/* ═══ Nav Grid (Home) ═══ */
.nav-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1px; background: var(--border);
  border: 1px solid var(--border);
}
.nav-grid-item {
  background: var(--bg-primary); padding: 28px 24px;
  text-decoration: none; color: inherit;
  transition: background 0.15s;
}
.nav-grid-item:hover { background: var(--bg-secondary); }
.nav-grid-item .entry-title {
  font-family: var(--font-heading); font-weight: 800;
  font-size: 0.85rem; text-transform: uppercase;
  letter-spacing: -0.01em; margin-bottom: 6px;
  display: block;
}
.nav-grid-item .entry-sub {
  font-family: var(--font-mono); font-size: 10px;
  color: var(--text-dim); letter-spacing: 0.05em;
  display: block;
}

/* ═══ Footer ═══ */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 24px;
  text-align: center;
}
.site-footer p {
  font-family: var(--font-mono);
  font-size: 10px; color: var(--text-dim);
  letter-spacing: 0.08em;
}
.site-footer a { color: var(--text-secondary); text-decoration: none; }
.site-footer a:hover { color: var(--text-primary); }

/* ═══ Loading ═══ */
.loading {
  text-align: center; padding: 120px 0;
  font-family: var(--font-mono);
  color: var(--text-dim); font-size: 10px;
  letter-spacing: 0.2em; text-transform: uppercase;
}

/* ═══ Empty State ═══ */
.empty-state {
  text-align: center; padding: 80px 0;
  color: var(--text-dim);
}
.empty-state p { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; }

/* ═══ Reveal Animation ═══ */
.reveal { opacity: 0; transform: translateY(40px); transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal.active { opacity: 1; transform: translateY(0); }

/* ═══ Responsive ═══ */
@media (max-width: 768px) {
  .detail-layout { grid-template-columns: 1fr; }
  .detail-sidebar { position: static; }
  .nav-links a { padding: 8px 10px; font-size: 9px; }
  .document { padding: 32px 24px; }
  .hero { padding: 100px 0 60px; }
  .iron-rules { padding: 28px; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .dig-grid { grid-template-columns: 1fr; }
}