/* AtlasPI — Stile interfaccia */

/* ─── Dark theme (default) ────────────────────────────────────── */
:root, [data-theme="dark"] {
  --bg-dark: #0d1117;
  --bg-sidebar: #161b22;
  --bg-card: #1c2333;
  --bg-card-hover: #243044;
  --accent: #58a6ff;
  --accent-light: #79c0ff;
  --accent-warm: #d29922;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --confirmed: #3fb950;
  --uncertain: #d29922;
  --disputed: #f85149;
  --border: #30363d;
  --shadow: rgba(0,0,0,0.4);
  --leaflet-filter: none;
}

/* ─── Light theme ──────────────────────────────────────────────── */
[data-theme="light"] {
  --bg-dark: #ffffff;
  --bg-sidebar: #f6f8fa;
  --bg-card: #ffffff;
  --bg-card-hover: #f0f3f6;
  --accent: #0969da;
  --accent-light: #218bff;
  --accent-warm: #bf8700;
  --text: #1f2328;
  --text-muted: #656d76;
  --confirmed: #1a7f37;
  --uncertain: #9a6700;
  --disputed: #cf222e;
  --border: #d0d7de;
  --shadow: rgba(0,0,0,0.1);
  --leaflet-filter: invert(1) hue-rotate(180deg) brightness(1.1) contrast(0.9);
}

/* Invert dark map tiles for light mode */
[data-theme="light"] .leaflet-tile-pane {
  filter: var(--leaflet-filter);
}

[data-theme="light"] .leaflet-control-zoom a {
  background: var(--bg-sidebar) !important;
  color: var(--text) !important;
  border-color: var(--border) !important;
}

[data-theme="light"] .leaflet-tooltip {
  background: var(--bg-sidebar) !important;
  border-color: var(--border) !important;
  color: var(--text) !important;
}

[data-theme="light"] .ethics-box::before { color: var(--disputed); }

[data-theme="light"] kbd {
  background: var(--bg-sidebar);
  border-color: var(--border);
  color: var(--accent);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  background: var(--bg-dark);
  color: var(--text);
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Header */
#header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 20px;
  background: var(--bg-sidebar);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  flex-shrink: 0;
}

#header h1 {
  font-size: 1.2em;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.5px;
}

#header h1 span {
  color: var(--accent);
}

.subtitle {
  font-size: 0.75em;
  color: var(--text-muted);
  margin-left: 12px;
  font-weight: 400;
}

.badge {
  background: var(--bg-card);
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.8em;
  border: 1px solid var(--border);
  color: var(--text-muted);
}

/* Main layout — key fix: no overlap */
#app {
  display: flex;
  flex: 1;
  overflow: hidden;
  position: relative;
  min-height: 0;
}

/* Sidebar — fixed width, never overlapped */
#sidebar {
  width: 320px;
  min-width: 320px;
  max-width: 320px;
  background: var(--bg-sidebar);
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border);
  overflow: hidden;
  z-index: 100;
  flex-shrink: 0;
}

.controls {
  padding: 14px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.search-box {
  display: flex;
  gap: 6px;
  margin-bottom: 12px;
}

.search-box input {
  flex: 1;
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-dark);
  color: var(--text);
  font-size: 0.85em;
  outline: none;
  transition: border-color 0.2s;
}

.search-box input:focus { border-color: var(--accent); }

.search-box button {
  padding: 7px 10px;
  background: var(--accent);
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.9em;
  color: #000;
  font-weight: 600;
  transition: background 0.15s;
}

.search-box button:hover { background: var(--accent-light); }

.year-control { margin-bottom: 12px; }

.year-control > label { font-size: 0.82em; color: var(--text-muted); display: block; margin-bottom: 4px; }

.year-input-row {
  display: flex;
  gap: 4px;
  margin-bottom: 6px;
}

.year-input-row input[type="number"] {
  flex: 1;
  padding: 5px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-dark);
  color: var(--accent);
  font-size: 1em;
  font-weight: 600;
  text-align: center;
  outline: none;
  -moz-appearance: textfield;
}

.year-input-row input[type="number"]::-webkit-inner-spin-button { opacity: 1; }
.year-input-row input[type="number"]:focus { border-color: var(--accent); }

.year-input-row select {
  padding: 5px 6px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-dark);
  color: var(--text);
  font-size: 0.82em;
  outline: none;
}

.year-go-btn {
  padding: 5px 10px;
  background: var(--accent);
  border: none;
  border-radius: 6px;
  color: #000;
  font-weight: 600;
  cursor: pointer;
  font-size: 0.9em;
}

.year-go-btn:hover { background: var(--accent-light); }

#year-slider {
  width: 100%;
  margin: 2px 0;
  accent-color: var(--accent);
  height: 4px;
}

.year-range {
  display: flex;
  justify-content: space-between;
  font-size: 0.68em;
  color: var(--text-muted);
}

.year-range #year-display { color: var(--accent); font-weight: 600; font-size: 1.1em; }

.year-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
  margin-top: 6px;
}

.year-presets button {
  padding: 2px 7px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.68em;
  cursor: pointer;
  transition: all 0.15s;
}

.year-presets button:hover { border-color: var(--accent); color: var(--text); }

.filter-control { margin-bottom: 10px; }
.filter-control > label { font-size: 0.82em; color: var(--text-muted); display: block; margin-bottom: 3px; }

.checkbox-group {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.checkbox-group label {
  font-size: 0.78em;
  display: flex;
  align-items: center;
  gap: 3px;
  cursor: pointer;
}

.btn-secondary {
  width: 100%;
  padding: 5px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.78em;
  transition: all 0.15s;
}

.btn-secondary:hover { border-color: var(--accent); color: var(--text); }

/* Data quality banner */
.data-banner {
  padding: 8px 14px;
  background: rgba(210, 153, 34, 0.1);
  border-bottom: 1px solid rgba(210, 153, 34, 0.3);
  font-size: 0.72em;
  color: var(--accent-warm);
  line-height: 1.4;
  flex-shrink: 0;
}

.data-banner strong { color: var(--accent-warm); }

/* Results list */
.results {
  flex: 1;
  overflow-y: auto;
  padding: 6px;
  min-height: 0;
}

.placeholder { text-align: center; color: var(--text-muted); padding: 20px; font-size: 0.85em; }

.results-count {
  text-align: center;
  font-size: 0.72em;
  color: var(--text-muted);
  padding: 4px 0 6px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4px;
}

.result-card {
  padding: 8px 10px;
  margin-bottom: 4px;
  background: var(--bg-card);
  border-radius: 6px;
  cursor: pointer;
  border-left: 3px solid var(--confirmed);
  transition: background 0.15s;
}

.result-card:hover { background: var(--bg-card-hover); }
.result-card.uncertain { border-left-color: var(--uncertain); }
.result-card.disputed { border-left-color: var(--disputed); }

.result-card .name { font-weight: 600; font-size: 0.88em; }
.result-card .meta {
  font-size: 0.72em;
  color: var(--text-muted);
  margin-top: 2px;
}

.result-card .score-bar {
  height: 2px;
  background: var(--border);
  border-radius: 1px;
  margin-top: 4px;
}

.result-card .score-fill {
  height: 100%;
  border-radius: 1px;
  background: var(--confirmed);
}

/* Precision badge on cards */
.precision-tag {
  display: inline-block;
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 0.65em;
  font-weight: 600;
  margin-left: 4px;
}

.precision-tag.approx {
  background: rgba(210,153,34,0.2);
  color: var(--uncertain);
}

/* Map — takes remaining space, never overlaps sidebar */
#map-container {
  flex: 1;
  position: relative;
  min-width: 0;
  z-index: 1;
}

#map {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
}

/* Map control buttons */
.map-control-btn {
  position: absolute;
  z-index: 10;
  background: var(--bg-sidebar);
  border: 1px solid var(--border);
  color: var(--text-muted);
  width: 32px;
  height: 32px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 1em;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}

.map-control-btn:hover { color: var(--accent); border-color: var(--accent); }

#map-fullscreen { top: 10px; right: 10px; }
.map-fit-btn { top: 48px; right: 10px; }

/* Fullscreen mode */
#map-container.fullscreen {
  position: fixed !important;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 9999;
}

#map-container.fullscreen #map-fullscreen { top: 10px; right: 10px; }

/* Map overlay info */
.map-info-overlay {
  position: absolute;
  bottom: 30px;
  left: 10px;
  background: rgba(22,27,34,0.92);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 0.72em;
  color: var(--text-muted);
  z-index: 10;
  max-width: 240px;
  line-height: 1.4;
  backdrop-filter: blur(4px);
}

/* Detail panel — overlays map only, not sidebar */
.detail-panel {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 400px;
  max-width: calc(100% - 320px);
  background: var(--bg-sidebar);
  border-left: 1px solid var(--border);
  overflow-y: auto;
  padding: 16px;
  z-index: 50;
  transition: transform 0.25s ease;
  box-shadow: -4px 0 20px var(--shadow);
}

.detail-panel.hidden {
  transform: translateX(100%);
  pointer-events: none;
  box-shadow: none;
}

.close-btn {
  position: sticky;
  top: 0;
  float: right;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 1.2em;
  cursor: pointer;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

.close-btn:hover { color: var(--disputed); border-color: var(--disputed); }

.detail-panel h2 {
  font-size: 1.1em;
  color: var(--text);
  margin-bottom: 2px;
  font-weight: 600;
}

.detail-panel .lang-tag {
  display: inline-block;
  background: var(--bg-card);
  padding: 1px 7px;
  border-radius: 4px;
  font-size: 0.7em;
  color: var(--text-muted);
  margin-bottom: 10px;
  border: 1px solid var(--border);
}

.detail-section {
  margin-bottom: 14px;
}

.detail-section h3 {
  font-size: 0.75em;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 6px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 3px;
  font-weight: 600;
}

.detail-section p, .detail-section li {
  font-size: 0.82em;
  line-height: 1.5;
}

.detail-section ul { list-style: none; padding: 0; }
.detail-section li {
  padding: 5px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.status-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 0.72em;
  font-weight: 600;
}

.status-badge.confirmed { background: rgba(63,185,80,0.15); color: var(--confirmed); border: 1px solid rgba(63,185,80,0.3); }
.status-badge.uncertain { background: rgba(210,153,34,0.15); color: var(--uncertain); border: 1px solid rgba(210,153,34,0.3); }
.status-badge.disputed { background: rgba(248,81,73,0.15); color: var(--disputed); border: 1px solid rgba(248,81,73,0.3); }

.confidence-bar {
  width: 100%;
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  margin-top: 4px;
}

.confidence-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.3s;
}

.ethics-box {
  background: rgba(248,81,73,0.06);
  border: 1px solid rgba(248,81,73,0.2);
  border-radius: 6px;
  padding: 10px 12px;
  font-size: 0.8em;
  line-height: 1.5;
}

.ethics-box::before {
  content: "NOTA ETICA";
  display: block;
  font-size: 0.7em;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--disputed);
  margin-bottom: 4px;
}

.change-type {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 3px;
  font-size: 0.7em;
  font-weight: 600;
  background: rgba(255,255,255,0.08);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.change-type.CONQUEST_MILITARY { background: rgba(248,81,73,0.2); color: #ff8080; }
.change-type.COLONIZATION { background: rgba(188,140,255,0.2); color: #d2a8ff; }
.change-type.TREATY { background: rgba(88,166,255,0.2); color: #79c0ff; }
.change-type.REVOLUTION { background: rgba(210,153,34,0.2); color: #e3b341; }
.change-type.LIBERATION { background: rgba(63,185,80,0.2); color: #56d364; }
.change-type.ETHNIC_CLEANSING { background: rgba(248,81,73,0.35); color: #ff6b6b; }
.change-type.GENOCIDE { background: rgba(248,81,73,0.4); color: #ff5555; }
.change-type.CESSION_FORCED { background: rgba(210,153,34,0.2); color: #e3b341; }
.change-type.UNKNOWN { background: rgba(139,148,158,0.2); color: #8b949e; }

/* Boundary precision indicator in detail */
.boundary-notice {
  background: rgba(210,153,34,0.1);
  border: 1px solid rgba(210,153,34,0.25);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 0.75em;
  color: var(--accent-warm);
  margin-top: 6px;
}

/* Footer */
footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 5px 20px;
  background: var(--bg-sidebar);
  border-top: 1px solid var(--border);
  font-size: 0.72em;
  z-index: 1000;
  flex-shrink: 0;
}

.legend { display: flex; gap: 14px; }
.legend-item { display: flex; align-items: center; gap: 4px; color: var(--text-muted); }

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.dot.confirmed { background: var(--confirmed); }
.dot.uncertain { background: var(--uncertain); }
.dot.disputed { background: var(--disputed); }

.footer-note { color: var(--text-muted); }

/* Scrollbar */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #484f58; }

/* Leaflet overrides for dark theme */
.leaflet-control-zoom a {
  background: var(--bg-sidebar) !important;
  color: var(--text) !important;
  border-color: var(--border) !important;
}

.leaflet-control-attribution {
  background: rgba(13,17,23,0.8) !important;
  color: var(--text-muted) !important;
  font-size: 0.65em !important;
}

.leaflet-control-attribution a { color: var(--accent) !important; }

.leaflet-tooltip {
  background: var(--bg-sidebar) !important;
  border: 1px solid var(--border) !important;
  color: var(--text) !important;
  font-size: 0.82em !important;
  padding: 3px 8px !important;
  border-radius: 4px !important;
  box-shadow: 0 2px 8px var(--shadow) !important;
}

.leaflet-tooltip-top:before { border-top-color: var(--border) !important; }
.leaflet-tooltip-bottom:before { border-bottom-color: var(--border) !important; }

/* ─── Nuovi componenti v2 ────────────────────────────────────── */

/* Screen reader only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* API docs link */
.api-link {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.8em;
  padding: 3px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-right: 10px;
  transition: all 0.15s;
}

.api-link:hover { background: var(--bg-card); border-color: var(--accent); }

/* Theme toggle */
.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 1em;
  padding: 3px 8px;
  border-radius: 6px;
  cursor: pointer;
  margin-right: 6px;
  transition: all 0.15s;
  line-height: 1;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--text); }

/* Fieldset reset */
fieldset.filter-control {
  border: none;
  padding: 0;
  margin: 0 0 10px;
}

fieldset.filter-control legend {
  font-size: 0.82em;
  color: var(--text-muted);
  margin-bottom: 3px;
}

/* Skeleton loader */
.skeleton-loader { padding: 8px; }

.skeleton-card {
  height: 60px;
  margin-bottom: 6px;
  background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-card-hover) 50%, var(--bg-card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 6px;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Detail spinner */
.detail-spinner {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 200px;
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Error toast */
.error-toast {
  position: fixed;
  bottom: 60px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(248,81,73,0.95);
  color: #fff;
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 0.85em;
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 2000;
  box-shadow: 0 4px 12px rgba(0,0,0,0.4);
  transition: opacity 0.3s;
}

.error-toast.hidden { opacity: 0; pointer-events: none; }

.error-toast button {
  background: none;
  border: none;
  color: #fff;
  font-size: 1.2em;
  cursor: pointer;
  padding: 0 4px;
}

/* Sidebar toggle (mobile) */
.sidebar-toggle {
  display: none;
  position: fixed;
  top: 52px;
  left: 8px;
  z-index: 200;
  background: var(--bg-sidebar);
  border: 1px solid var(--border);
  color: var(--text);
  width: 40px;
  height: 40px;
  border-radius: 8px;
  font-size: 1.2em;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

/* Chip group (type filter) */
.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.chip {
  padding: 3px 8px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.72em;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}

.chip:hover { border-color: var(--accent); color: var(--text); }
.chip.active { background: var(--accent); color: #000; border-color: var(--accent); font-weight: 600; }

/* Sort control */
.sort-control {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 10px;
}

.sort-control label {
  font-size: 0.82em;
  color: var(--text-muted);
  white-space: nowrap;
}

.sort-control select {
  flex: 1;
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-dark);
  color: var(--text);
  font-size: 0.8em;
  outline: none;
}

.sort-control select:focus { border-color: var(--accent); }

/* Stats bar */
.stats-bar {
  display: flex;
  gap: 10px;
  padding: 6px 14px;
  border-bottom: 1px solid var(--border);
  font-size: 0.7em;
  color: var(--text-muted);
  flex-wrap: wrap;
  flex-shrink: 0;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 3px;
}

.stat-value { color: var(--accent); font-weight: 600; }

/* Timeline bar */
.timeline-bar {
  position: absolute;
  bottom: 30px;
  left: 0;
  right: 0;
  z-index: 50;
  pointer-events: none;
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 12px;
  background: rgba(22,27,34,0.95);
  border-top: 1px solid var(--border);
  pointer-events: auto;
  backdrop-filter: blur(4px);
}

.timeline-toggle {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.78em;
  cursor: pointer;
  padding: 4px 8px;
}

.timeline-toggle:hover { color: var(--accent); }

.timeline-export {
  display: flex;
  gap: 6px;
}

.export-btn {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.7em;
  padding: 2px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  transition: all 0.15s;
}

.export-btn:hover { color: var(--accent); border-color: var(--accent); }

.timeline-canvas {
  background: rgba(22,27,34,0.95);
  border-top: 1px solid var(--border);
  overflow: hidden;
  transition: height 0.3s ease;
  height: 120px;
  pointer-events: auto;
  backdrop-filter: blur(4px);
}

.timeline-canvas.collapsed { height: 0; border: none; }

#timeline-chart {
  width: 100%;
  height: 120px;
}

/* ─── Responsive ─────────────────────────────────────────────── */

/* Tablet */
@media (max-width: 1024px) {
  #sidebar {
    width: 280px;
    min-width: 280px;
    max-width: 280px;
  }

  .detail-panel {
    width: 340px;
    max-width: calc(100% - 280px);
  }

  .subtitle { display: none; }
}

/* Mobile */
@media (max-width: 768px) {
  .sidebar-toggle { display: flex; }

  #sidebar {
    position: fixed;
    top: 44px;
    left: 0;
    bottom: 0;
    width: 100%;
    max-width: 100%;
    min-width: 0;
    z-index: 150;
    transform: translateX(0);
    transition: transform 0.25s ease;
  }

  #sidebar.collapsed {
    transform: translateX(-100%);
  }

  #map-container { width: 100%; }

  .detail-panel {
    width: 100%;
    max-width: 100%;
  }

  #header {
    padding: 6px 12px;
  }

  #header h1 { font-size: 1em; }

  footer {
    flex-direction: column;
    gap: 2px;
    padding: 4px 10px;
    font-size: 0.68em;
  }

  .legend { flex-wrap: wrap; gap: 8px; }

  /* Touch-friendly targets */
  .result-card { padding: 12px; min-height: 44px; }
  .search-box input { padding: 10px 12px; }
  .search-box button { padding: 10px 14px; }
  .checkbox-group label { padding: 4px 0; min-height: 44px; }
}

/* ─── v4.6: Collapsible sections ────────────────────────────── */

.collapsible {
  cursor: pointer;
  user-select: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: color 0.15s;
}

.collapsible:hover { color: var(--accent); }
.collapsible:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 3px; }

.collapse-icon {
  font-size: 0.7em;
  transition: transform 0.2s;
}

.detail-section .section-body {
  overflow: hidden;
  max-height: 2000px;
  transition: max-height 0.3s ease, opacity 0.2s ease;
  opacity: 1;
}

.detail-section.collapsed .section-body {
  max-height: 0;
  opacity: 0;
  margin: 0;
  padding: 0;
}

/* Keyboard navigation */
.result-card.keyboard-focus {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
  background: var(--bg-card-hover);
}

/* Type icons in results */
.type-icon {
  font-size: 0.9em;
  margin-right: 2px;
}

/* Contemporaries items */
.contemporary-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.15s;
  font-size: 0.85em;
}

.contemporary-item:hover { background: var(--bg-card-hover); }
.contemporary-item:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Share button */
.detail-actions {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 8px;
}

.btn-share {
  padding: 6px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-muted);
  font-size: 0.8em;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-share:hover { border-color: var(--accent); color: var(--accent); }

/* Keyboard help table */
.kbd-table {
  width: 100%;
  font-size: 0.85em;
}

.kbd-table td { padding: 6px 8px; border-bottom: 1px solid var(--border); }
.kbd-table td:first-child { text-align: right; width: 40%; }

kbd {
  display: inline-block;
  padding: 2px 6px;
  background: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.85em;
  font-family: monospace;
  color: var(--accent);
}

/* Boundary notice variants */
.boundary-notice.real-notice {
  border-color: rgba(63,185,80,0.3);
  background: rgba(63,185,80,0.08);
  color: var(--confirmed);
}

/* ─── v5.0: Playback & Compare ──────────────────────────────── */

.playback-controls {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 6px;
}

.play-btn {
  width: 32px;
  height: 28px;
  background: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--accent);
  font-size: 0.9em;
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.play-btn:hover { border-color: var(--accent); background: var(--bg-card); }
.play-btn.playing { background: var(--accent); color: #000; border-color: var(--accent); }

.play-speed {
  padding: 4px 6px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-dark);
  color: var(--text-muted);
  font-size: 0.72em;
  outline: none;
}

/* Compare mode */
.compare-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 12px;
}

.compare-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
}

.compare-card h4 {
  font-size: 0.9em;
  margin-bottom: 8px;
  color: var(--text);
}

.compare-card .compare-stat {
  display: flex;
  justify-content: space-between;
  padding: 3px 0;
  font-size: 0.78em;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.compare-card .compare-stat .label { color: var(--text-muted); }
.compare-card .compare-stat .value { color: var(--accent); font-weight: 600; }

.compare-overlap {
  text-align: center;
  padding: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-top: 8px;
}

.compare-overlap .overlap-value {
  font-size: 1.4em;
  font-weight: 700;
  color: var(--accent);
}

.btn-compare {
  padding: 6px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-muted);
  font-size: 0.8em;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-compare:hover { border-color: var(--accent); color: var(--accent); }

.result-card.compare-candidate {
  outline: 2px dashed var(--accent);
  outline-offset: -2px;
  cursor: crosshair;
}

.result-card.compare-candidate:hover {
  background: rgba(88,166,255,0.1);
}

/* ─── v5.5: Enhanced detail panel ───────────────────────────── */

/* Detail tags row */
.detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  margin: 6px 0 12px;
}

.continent-tag {
  display: inline-block;
  background: var(--bg-card);
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 0.72em;
  color: var(--text-muted);
  border: 1px solid var(--border);
}

/* Info grid in detail panel */
.info-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.info-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 5px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 0.82em;
}

.info-item:last-child { border-bottom: none; }

.info-label {
  color: var(--text-muted);
  font-size: 0.88em;
}

.info-value {
  color: var(--text);
  font-weight: 500;
  text-align: right;
}

.geo-micro {
  font-size: 0.8em;
  color: var(--text-muted);
  font-weight: 400;
}

/* Geo coordinates in reliability section */
.geo-coords {
  font-size: 0.75em;
  color: var(--text-muted);
  margin-top: 4px;
  padding: 4px 8px;
  background: rgba(88,166,255,0.06);
  border-radius: 4px;
  border: 1px solid rgba(88,166,255,0.12);
}

/* Enhanced sources list */
.sources-list {
  list-style: none;
  padding: 0;
}

.source-item {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  padding: 6px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.source-item:last-child { border-bottom: none; }

.source-icon {
  font-size: 1.1em;
  flex-shrink: 0;
  margin-top: 1px;
}

.source-detail {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.source-citation {
  font-size: 0.8em;
  line-height: 1.4;
  color: var(--text);
}

.source-type-tag {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 3px;
  font-size: 0.65em;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  background: rgba(88,166,255,0.12);
  color: var(--accent);
  width: fit-content;
}

/* Map scroll hint overlay */
.map-scroll-hint {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(22,27,34,0.9);
  color: var(--text-muted);
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 0.82em;
  pointer-events: none;
  z-index: 15;
  opacity: 0;
  transition: opacity 0.3s;
  backdrop-filter: blur(4px);
}

.map-scroll-hint.visible { opacity: 1; }

/* ─── v5.6: Search autocomplete dropdown ──────────────────── */

.search-box {
  position: relative;
}

.autocomplete-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-sidebar);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 8px 8px;
  max-height: 320px;
  overflow-y: auto;
  z-index: 500;
  box-shadow: 0 8px 24px var(--shadow);
  display: none;
}

.autocomplete-dropdown.visible { display: block; }

.autocomplete-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  cursor: pointer;
  transition: background 0.12s;
  border-bottom: 1px solid rgba(255,255,255,0.03);
}

.autocomplete-item:hover,
.autocomplete-item.ac-active {
  background: var(--bg-card-hover);
}

.autocomplete-item .ac-icon {
  font-size: 1em;
  flex-shrink: 0;
}

.autocomplete-item .ac-info {
  flex: 1;
  min-width: 0;
}

.autocomplete-item .ac-name {
  font-size: 0.85em;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.autocomplete-item .ac-name mark {
  background: rgba(88,166,255,0.25);
  color: var(--accent);
  border-radius: 2px;
  padding: 0 1px;
}

.autocomplete-item .ac-meta {
  font-size: 0.7em;
  color: var(--text-muted);
}

.autocomplete-item .ac-score {
  flex-shrink: 0;
  font-size: 0.68em;
  color: var(--text-muted);
  background: var(--bg-card);
  padding: 2px 6px;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.autocomplete-hint {
  padding: 6px 12px;
  font-size: 0.68em;
  color: var(--text-muted);
  text-align: center;
  border-top: 1px solid rgba(255,255,255,0.04);
}

/* ─── v5.6: Stats dashboard ──────────────────────────────────── */

.stats-dashboard {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 8px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  text-align: center;
}

.stat-card .stat-number {
  font-size: 1.2em;
  font-weight: 700;
  color: var(--accent);
  display: block;
}

.stat-card .stat-label {
  font-size: 0.68em;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ─── v5.6: Improved mobile ──────────────────────────────────── */

@media (max-width: 768px) {
  .autocomplete-dropdown {
    max-height: 250px;
  }

  .autocomplete-item {
    padding: 10px 12px;
    min-height: 44px;
  }

  .compare-panel {
    grid-template-columns: 1fr;
  }

  .stats-dashboard {
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
    padding: 8px 10px;
  }
}

/* ─── v5.6: Nearby entities indicator ─────────────────────────── */

.nearby-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 2px 6px;
  background: rgba(88,166,255,0.1);
  border: 1px solid rgba(88,166,255,0.2);
  border-radius: 4px;
  font-size: 0.68em;
  color: var(--accent);
}

/* ─── v5.6: Entity card hover enhancements ─────────────────── */

.result-card {
  position: relative;
  overflow: hidden;
}

.result-card::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 3px;
  background: transparent;
  transition: background 0.15s;
}

.result-card:hover::after {
  background: var(--accent);
}

/* ─── v5.6: Map year badge ────────────────────────────────────── */

.map-year-badge {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(22,27,34,0.92);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 4px 14px;
  font-size: 0.78em;
  color: var(--text-muted);
  z-index: 10;
  pointer-events: none;
  backdrop-filter: blur(4px);
  white-space: nowrap;
  transition: opacity 0.2s;
}

.map-year-badge .year-value {
  color: var(--accent);
  font-weight: 700;
  font-size: 1.1em;
}

.map-year-badge .entity-count {
  color: var(--confirmed);
  font-weight: 600;
}

/* ─── v5.6: Loading progress bar ──────────────────────────────── */

.loading-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  z-index: 9999;
  transition: width 0.3s ease;
}

/* ─── v5.7: Capital markers on map ──────────────────────────── */

.capital-marker {
  transition: r 0.2s ease;
}

.capital-label {
  transition: opacity 0.2s;
}

/* ─── v5.8: Marker cluster styling ─────────────────────────── */

.marker-cluster-custom {
  background: transparent !important;
  border: none !important;
}

.cluster-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-weight: 700;
  color: #fff;
  text-shadow: 0 1px 2px rgba(0,0,0,0.5);
  box-shadow: 0 2px 8px rgba(0,0,0,0.4);
}

.cluster-small {
  width: 30px;
  height: 30px;
  font-size: 12px;
  background: rgba(88, 166, 255, 0.75);
  border: 2px solid rgba(88, 166, 255, 0.9);
}

.cluster-medium {
  width: 36px;
  height: 36px;
  font-size: 13px;
  background: rgba(210, 153, 34, 0.75);
  border: 2px solid rgba(210, 153, 34, 0.9);
}

.cluster-large {
  width: 42px;
  height: 42px;
  font-size: 14px;
  background: rgba(218, 54, 51, 0.75);
  border: 2px solid rgba(218, 54, 51, 0.9);
}

/* Override default markercluster styles for dark theme */
.leaflet-cluster-anim .leaflet-marker-icon,
.leaflet-cluster-anim .leaflet-marker-shadow {
  transition: transform 0.3s ease-out, opacity 0.3s ease-in;
}

/* ─── v5.8: Mini-timeline canvas ───────────────────────────── */

.mini-timeline-container {
  margin: 12px 0;
  padding: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
}

.mini-timeline-container h4 {
  margin: 0 0 6px 0;
  font-size: 0.85em;
  color: var(--text-muted);
  font-weight: 500;
}

.mini-timeline-canvas {
  width: 100%;
  height: 60px;
  border-radius: 4px;
  cursor: crosshair;
}

/* ─── v5.7: Map cluster density indicator ──────────────────── */

.map-density-legend {
  position: absolute;
  bottom: 50px;
  right: 10px;
  background: rgba(22,27,34,0.85);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 0.72em;
  color: var(--text-muted);
  z-index: 5;
  backdrop-filter: blur(4px);
}

/* ─── v5.7: Improved result cards ──────────────────────────── */

.result-card .capital-info {
  font-size: 0.72em;
  color: var(--text-muted);
  margin-top: 2px;
}

.result-card .capital-info::before {
  content: '📍 ';
}

/* ─── v5.7: Stats dashboard cards ──────────────────────────── */

.stats-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  padding: 8px 12px;
  font-size: 0.78em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}

.stat-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.stat-value {
  font-weight: 700;
  color: var(--accent);
}

/* ─── v5.7: Entity detail panel improvements ───────────────── */

.detail-section[data-section="info"] .info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 12px;
}

.detail-section .info-item {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.detail-section .info-label {
  font-size: 0.72em;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.detail-section .info-value {
  font-weight: 500;
}

/* ─── v5.7: Timeline improvements ──────────────────────────── */

.timeline-bar .timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 12px;
}

.timeline-bar .timeline-export {
  display: flex;
  gap: 8px;
}

.export-btn {
  font-size: 0.72em;
  padding: 2px 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-muted);
  text-decoration: none;
  transition: all 0.15s;
}

.export-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(88,166,255,0.08);
}

/* ─── v5.7: Smooth hover animations ───────────────────────── */

.result-card {
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.result-card:hover {
  transform: translateX(2px);
  box-shadow: 0 2px 8px var(--shadow);
}

.chip {
  transition: all 0.15s ease;
}

.chip:hover:not(.active) {
  background: var(--bg-card-hover);
  transform: translateY(-1px);
}

/* ─── v5.7: Welcome/empty state ───────────────────────────── */

.map-info-overlay {
  text-align: center;
  max-width: 280px;
  line-height: 1.5;
}

/* ─── v5.7: Source type colors ────────────────────────────── */

.source-type-tag {
  font-size: 0.68em;
  padding: 1px 5px;
  border-radius: 3px;
  background: rgba(88,166,255,0.1);
  color: var(--accent);
  margin-left: 4px;
}

.source-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 4px 0;
  border-bottom: 1px solid rgba(48,54,61,0.3);
}

.source-item:last-child {
  border-bottom: none;
}

.source-icon {
  flex-shrink: 0;
  font-size: 1.1em;
}

.source-detail {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.source-citation {
  font-size: 0.82em;
  line-height: 1.4;
}

/* ─── v5.7: Scrollbar styling ─────────────────────────────── */

#sidebar::-webkit-scrollbar,
#results-list::-webkit-scrollbar,
.detail-panel::-webkit-scrollbar {
  width: 6px;
}

#sidebar::-webkit-scrollbar-track,
#results-list::-webkit-scrollbar-track,
.detail-panel::-webkit-scrollbar-track {
  background: transparent;
}

#sidebar::-webkit-scrollbar-thumb,
#results-list::-webkit-scrollbar-thumb,
.detail-panel::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

#sidebar::-webkit-scrollbar-thumb:hover,
#results-list::-webkit-scrollbar-thumb:hover,
.detail-panel::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* ─── v5.7: Focus visible for keyboard nav ─────────────────── */

.result-card:focus-visible,
.chip:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.collapsible:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-radius: 3px;
}

/* Print */
@media print {
  #sidebar, footer, .sidebar-toggle, .map-info-overlay, .timeline-bar,
  .map-control-btn, .detail-actions, .header-right { display: none !important; }
  #map-container { width: 100%; }
  body { background: #fff; color: #000; }
  #header { background: #fff; border-color: #ccc; }
  #header h1 { color: #000; }
  .detail-panel { position: static; width: 100%; max-width: 100%; box-shadow: none; border: 1px solid #ccc; }
  .detail-section { break-inside: avoid; }
  .status-badge { border: 1px solid #999; }
}