/* === Reference Library — Bridge Forensic Logic / Narrowlight Press === */
/* Restrained, institutional. Not a separate brand. Uses shared typography. */

:root {
  /* Shared palette — consistent with both institutions */
  --bg: #F7F6F2;
  --surface: #FFFFFF;
  --surface-alt: #FBFBF9;
  --border: #D4D1CA;
  --text: #28251D;
  --text-muted: #7A7974;
  --text-faint: #BAB9B4;
  --primary: #01696F;
  --gold: #C6A664;
  --black: #121212;

  /* Authority badge colors */
  --auth-governing: #7A39BB;
  --auth-canonical: #01696F;
  --auth-derivative: #006494;
  --auth-reference: #964219;
  --auth-working: #7A7974;

  /* Typography */
  --font-serif: 'Cinzel', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
}

/* === Header === */
.site-header {
  background: var(--black);
  color: var(--bg);
  padding: 3rem 1.5rem 2.5rem;
  border-bottom: 3px solid var(--gold);
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
}

.site-title {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--bg);
  text-transform: uppercase;
}

.site-subtitle {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-top: 0.5rem;
}

.header-note {
  font-size: 0.875rem;
  color: var(--text-faint);
  margin-top: 1rem;
  max-width: 600px;
  line-height: 1.5;
}

/* === Main Content === */
.main-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

/* === Controls === */
.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-end;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.search-box {
  flex: 1 1 300px;
}

.search-box input {
  width: 100%;
  padding: 0.625rem 1rem;
  font-size: 0.9375rem;
  font-family: var(--font-sans);
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--surface);
  color: var(--text);
}

.search-box input:focus {
  outline: 2px solid var(--primary);
  outline-offset: -1px;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: flex-end;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.filter-group label {
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.filter-group select {
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  font-family: var(--font-sans);
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}

.filter-group select:focus {
  outline: 2px solid var(--primary);
  outline-offset: -1px;
}

.btn-reset {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-family: var(--font-sans);
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--surface);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-reset:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* === Results Meta === */
.results-meta {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

/* === Card Grid === */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.25rem;
}

/* === Record Card === */
.record-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: box-shadow 0.15s ease;
}

.record-card:hover {
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.record-card__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.75rem;
}

.record-card__id {
  font-family: var(--font-serif);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--primary);
  white-space: nowrap;
}

.record-card__authority-badge {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.1875rem 0.5rem;
  border-radius: 3px;
  white-space: nowrap;
}

.authority-governing       { background: rgba(122,57,187,0.12); color: var(--auth-governing); }
.authority-canonical-master { background: rgba(1,105,111,0.12); color: var(--auth-canonical); }
.authority-approved-derivative { background: rgba(0,100,148,0.12); color: var(--auth-derivative); }
.authority-reference       { background: rgba(150,66,25,0.12); color: var(--auth-reference); }
.authority-working         { background: rgba(122,121,116,0.12); color: var(--auth-working); }

.record-card__title {
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--text);
}

.record-card__institution {
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--text-muted);
}

.record-card__institution strong {
  font-weight: 500;
  color: var(--text);
}

.record-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
  padding-top: 0.5rem;
  border-top: 1px solid var(--border);
}

.record-card__meta-item {
  display: flex;
  gap: 0.25rem;
}

.record-card__meta-label {
  font-weight: 500;
  color: var(--text-muted);
}

.record-card__meta-value {
  color: var(--text);
}

.record-card__footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 0.5rem;
}

.record-card__provenance {
  font-size: 0.75rem;
  color: var(--text-faint);
  line-height: 1.4;
}

.record-card__link {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--primary);
  text-decoration: none;
  white-space: nowrap;
}

.record-card__link:hover {
  text-decoration: underline;
}

/* === Empty State === */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-muted);
}

/* === Footer === */
.site-footer {
  background: var(--surface-alt);
  border-top: 1px solid var(--border);
  padding: 2rem 1.5rem;
  text-align: center;
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.footer-note {
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-faint);
}

/* === Responsive === */
@media (max-width: 640px) {
  .site-header { padding: 2rem 1rem 1.5rem; }
  .site-title { font-size: 1.5rem; }
  .main-content { padding: 1rem; }
  .card-grid { grid-template-columns: 1fr; }
  .controls { flex-direction: column; align-items: stretch; }
  .filters { flex-direction: column; }
}