:root {
  --primary: #1565c0;
  --secondary: #4527a0;
  --accent: #2e7d32;
  --warn: #b7791f;
  --danger: #b71c1c;
  --bg: #f8f9fa;
  --surface: #ffffff;
  --text: #262a2e;
  --muted: #6b7280;
  --border: #e3e6ea;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  margin: 0;
}

a { color: var(--primary); }

/* ---------- Header ---------- */
header.site-header {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  padding: 1.25rem 2rem;
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.brand img.logo {
  height: 44px;
  width: auto;
  display: block;
  filter: drop-shadow(0 1px 2px rgba(0,0,0,0.25));
}

.brand-text h1 {
  margin: 0;
  font-size: 1.35rem;
  letter-spacing: 0.01em;
}

.brand-text p {
  margin: 0.15rem 0 0;
  font-size: 0.85rem;
  opacity: 0.85;
}

.role-switch {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
}

.role-switch select {
  padding: 0.4rem 0.6rem;
  border-radius: 6px;
  border: none;
  font-size: 0.85rem;
}

/* ---------- Nav tabs ---------- */
nav.tabs {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.tabs-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  gap: 0.25rem;
  overflow-x: auto;
  padding: 0 1rem;
}

.tab-btn {
  border: none;
  background: none;
  padding: 0.9rem 1.1rem;
  font-size: 0.95rem;
  color: var(--muted);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  white-space: nowrap;
}

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

.tab-btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 600;
}

/* ---------- Layout ---------- */
main.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1rem 4rem;
}

.view { display: none; }
.view.active { display: block; }

.view-intro { margin-bottom: 2rem; }
.view-intro h2 { margin-bottom: 0.4rem; }
.view-intro p { color: var(--muted); max-width: 70ch; }

.section-title {
  font-size: 1.1rem;
  margin: 2.25rem 0 1rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border);
}
.section-title:first-of-type { margin-top: 0; }

/* ---------- Cards / grid ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

.card {
  background: var(--surface);
  padding: 1.25rem 1.4rem;
  border-radius: var(--radius);
  border-left: 5px solid var(--primary);
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.card h3, .card h4 { margin-top: 0; color: var(--primary); }
.card .meta-tag {
  display: inline-block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--secondary);
  background: rgba(69,39,160,0.08);
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  margin-bottom: 0.5rem;
}

.card.pending {
  opacity: 0.6;
  border-left-color: var(--muted);
}

.tension-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.9rem;
  margin: 0.6rem 0;
}
.tension-row .val { flex: 1; padding: 0.5rem 0.7rem; background: #f2f4f7; border-radius: 6px; }
.tension-row .vs { align-self: center; color: var(--muted); font-size: 0.8rem; }

.key-question {
  margin-top: 0.75rem;
  font-style: italic;
  color: var(--secondary);
}

/* ---------- Category groups (Library) ---------- */
.category-group { margin-bottom: 2rem; }
.category-group h3 {
  color: var(--secondary);
  margin-bottom: 0.75rem;
}

.aaa-list { font-size: 0.85rem; margin-top: 0.6rem; }
.aaa-list div { margin-bottom: 0.25rem; }
.aaa-list b { color: var(--text); }

/* ---------- Browse tables (Library) ---------- */
.browse-subhead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin: 1.5rem 0 0.6rem;
}
.browse-subhead h4 {
  margin: 0;
  color: var(--secondary);
  font-size: 0.95rem;
}
.browse-subhead:first-of-type { margin-top: 0.5rem; }

.browse-filter {
  max-width: 260px;
  padding: 0.5rem 0.7rem;
  font-size: 0.85rem;
}

.browse-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  margin-bottom: 1.75rem;
}
.browse-table th, .browse-table td {
  text-align: left;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
  vertical-align: top;
}
.browse-table th {
  background: #f2f4f7;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.browse-table tbody tr {
  cursor: pointer;
  transition: background 0.12s ease;
}
.browse-table tbody tr:hover { background: #f6f7ff; }
.browse-table tbody tr:last-child td { border-bottom: none; }
.browse-table tbody tr.row-pending { opacity: 0.6; }

.pending-note { color: var(--muted); font-style: italic; font-size: 0.85rem; }
.meta-category {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--secondary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin: 0 0 0.5rem;
}

.cross-cutting-badge {
  background: rgba(46,125,50,0.12);
  color: var(--accent);
  font-size: 0.7rem;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
}

/* ---------- Detail lightbox ---------- */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(20, 22, 30, 0.55);
  z-index: 100;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}
.modal-overlay.open { display: flex; }

.modal-card {
  position: relative;
  background: var(--surface);
  border-radius: var(--radius);
  max-width: 640px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 2rem 2.2rem;
  box-shadow: 0 20px 50px rgba(0,0,0,0.3);
}

.modal-card .result-card {
  border: none;
  background: none;
  padding: 0;
  box-shadow: none;
}

.modal-card h4 {
  margin: 1.25rem 0 0.4rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--muted);
}
.modal-card ul { margin: 0.3rem 0; padding-left: 1.2rem; }
.modal-card li { margin-bottom: 0.25rem; }

.modal-close {
  position: absolute;
  top: 0.9rem;
  right: 1rem;
  background: none;
  border: none;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--muted);
  cursor: pointer;
  padding: 0.2rem 0.5rem;
}
.modal-close:hover { color: var(--text); }

/* ---------- Diagnostic engine ---------- */
#diagnostic-tool {
  background: var(--surface);
  padding: 1.75rem;
  border-radius: var(--radius);
  box-shadow: 0 4px 15px rgba(0,0,0,0.08);
}

.symptom-input-row {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

input[type="text"], input[type="password"], textarea, select.form-control {
  width: 100%;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.95rem;
  font-family: inherit;
}

.dashboard-key-modal .modal-card { max-width: 380px; }
.dashboard-key-modal p { color: var(--muted); margin-top: 0; }
.change-key-link { font-size: 0.82rem; color: var(--muted); }

.symptom-input-row input[type="text"] { flex: 1; min-width: 240px; }

button, .btn {
  padding: 0.7rem 1.3rem;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
}
button:hover, .btn:hover { filter: brightness(1.08); }
button.secondary, .btn.secondary { background: var(--primary); }
button.ghost, .btn.ghost { background: transparent; color: var(--primary); border: 1px solid var(--primary); }
button.danger, .btn.danger { background: var(--danger); }
button:disabled { opacity: 0.5; cursor: not-allowed; }

.symptom-suggestions {
  margin-top: 0.6rem;
  font-size: 0.82rem;
  color: var(--muted);
}
.symptom-suggestions button {
  background: #f2f4f7;
  color: var(--text);
  padding: 0.25rem 0.6rem;
  font-size: 0.78rem;
  font-weight: 400;
  margin: 0.2rem 0.3rem 0.2rem 0;
}

#results { margin-top: 1.5rem; }
.result-card {
  border-left: 5px solid var(--secondary);
  background: #faf9ff;
  padding: 1.25rem 1.4rem;
  border-radius: var(--radius);
}
.result-card h3 { margin-top: 0; color: var(--secondary); }

.result-card:has(.pattern-type.positive) { border-left-color: var(--accent); background: #f3faf3; }

.pattern-type {
  display: inline-block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 700;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  margin-left: 0.4rem;
}
.pattern-type.mismatch { background: rgba(183,28,28,0.1); color: var(--danger); }
.pattern-type.positive { background: rgba(46,125,50,0.12); color: var(--accent); }

.keyword-chips {
  margin: 0.6rem 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.keyword-chip {
  display: inline-block;
  font-size: 0.75rem;
  background: #eef0f4;
  color: var(--text);
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
}

.jump-link {
  color: var(--primary);
  text-decoration: none;
  border-bottom: 1px dotted var(--primary);
}
.jump-link:hover { border-bottom-style: solid; }

.suggested-interventions { margin-top: 1rem; }
.suggested-interventions ul { margin: 0.4rem 0 0; padding-left: 1.2rem; }
.suggested-interventions li { margin-bottom: 0.3rem; }

.no-match { color: var(--muted); }

/* ---------- Forms (Proposal interface) ---------- */
.form-grid {
  display: grid;
  gap: 1rem;
  max-width: 640px;
}
.form-field label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
  color: var(--muted);
}
.form-actions { display: flex; gap: 0.6rem; margin-top: 0.5rem; flex-wrap: wrap; }

.new-entity-links-title {
  margin: 1.25rem 0 0.5rem;
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}

.settings-box {
  background: #fff8e6;
  border: 1px solid #f0dca0;
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
  margin-bottom: 1.5rem;
  font-size: 0.88rem;
}
.settings-box input { margin-top: 0.4rem; max-width: 360px; display: inline-block; }

/* ---------- Entity edit form (Proposal interface) ---------- */
.field-diff-header {
  display: grid;
  grid-template-columns: 160px 1fr 1fr;
  gap: 1rem;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--muted);
  padding: 0 0 0.3rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0.5rem;
}

.field-edit-row {
  display: grid;
  grid-template-columns: 160px 1fr 1fr;
  gap: 1rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.88rem;
  align-items: start;
}
.field-edit-row:last-child { border-bottom: none; }

.field-label { font-weight: 600; color: var(--text); padding-top: 0.4rem; }
.field-current { color: var(--muted); padding-top: 0.4rem; }
.field-current ul { margin: 0; padding-left: 1.1rem; }

.field-proposed textarea,
.field-proposed input[type="text"],
.field-proposed select {
  width: 100%;
}
.field-proposed select[multiple] { padding: 0.3rem; }
.field-hint { font-size: 0.72rem; color: var(--muted); margin-top: 0.2rem; }

@media (max-width: 720px) {
  .field-diff-header, .field-edit-row { grid-template-columns: 1fr; gap: 0.3rem; }
  .field-diff-header { display: none; }
  .field-current::before { content: "Current: "; font-weight: 600; }
  .field-proposed::before { content: "Proposed: "; font-weight: 600; display: block; margin-bottom: 0.2rem; }
}

/* ---------- Proposal / dashboard list ---------- */
.proposal-card {
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 1.1rem 1.3rem;
  margin-bottom: 1rem;
}
.proposal-card .top-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  flex-wrap: wrap;
}
.status-pill {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-weight: 600;
}
.status-pill.pending { background: rgba(183,121,31,0.14); color: var(--warn); }
.status-pill.merged { background: rgba(46,125,50,0.14); color: var(--accent); }
.status-pill.rejected { background: rgba(183,28,28,0.14); color: var(--danger); }
.status-pill.published { background: rgba(21,101,192,0.14); color: var(--primary); }

#publishStatus { margin-top: 0.8rem; }
.publish-success { color: var(--accent); font-weight: 600; }
.publish-error { color: var(--danger); font-weight: 600; }

.diff-view {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 0.8rem;
  font-size: 0.85rem;
}
.diff-view > div { background: #f2f4f7; border-radius: 6px; padding: 0.7rem 0.9rem; }
.diff-view .proposed { background: #eef7ee; }
.diff-view h6 { margin: 0 0 0.4rem; font-size: 0.72rem; text-transform: uppercase; color: var(--muted); }
.diff-view.single-col { grid-template-columns: 1fr; }

.empty-state {
  text-align: center;
  color: var(--muted);
  padding: 3rem 1rem;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}

.role-gate {
  text-align: center;
  color: var(--muted);
  padding: 3rem 1rem;
}

.badge-count {
  background: var(--danger);
  color: white;
  border-radius: 999px;
  font-size: 0.68rem;
  padding: 0.05rem 0.4rem;
  margin-left: 0.3rem;
}

footer.site-footer {
  text-align: center;
  padding: 3rem 1rem;
  font-size: 0.85rem;
  color: var(--muted);
}

@media (max-width: 640px) {
  .diff-view { grid-template-columns: 1fr; }
  .header-inner { flex-direction: column; align-items: flex-start; }
}