:root {
  --bg: #0c1220;
  --panel: #152033;
  --panel-border: #243247;
  --text: #e8eef7;
  --muted: #9bb0c9;
  --accent: #0ea5e9;
  --accent-dim: #0369a1;
  --danger: #f87171;
  --warn: #fbbf24;
  --ok: #34d399;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
  --font: "Segoe UI", "IBM Plex Sans", system-ui, sans-serif;
  --mono: "Cascadia Mono", "Consolas", monospace;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
}

#app {
  display: grid;
  grid-template-rows: auto 1fr;
  height: 100%;
}

.view {
  display: none;
  min-height: 0;
  overflow: hidden;
}

.view.active {
  display: grid;
  grid-template-rows: 1fr auto;
  min-height: 0;
}

#view-data.active {
  grid-template-rows: 1fr;
}

.tabs {
  display: inline-flex;
  gap: 0.25rem;
  background: #0f1724;
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 0.15rem;
}

.tab {
  appearance: none;
  border: none;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  border-radius: 6px;
  cursor: pointer;
}

.tab.active {
  background: var(--accent);
  color: #041018;
}

.range-bar {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.range-bar label {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.75rem;
  color: var(--muted);
}

.range-bar input[type="date"] {
  background: #0f1724;
  color: var(--text);
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  padding: 0.25rem 0.4rem;
  font: inherit;
  font-size: 0.8rem;
  color-scheme: dark;
}

.btn.preset {
  padding: 0.28rem 0.55rem;
  font-size: 0.75rem;
}

/* —— Header —— */
.topbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.65rem 1rem;
  background: linear-gradient(180deg, #152033 0%, #101a2b 100%);
  border-bottom: 1px solid var(--panel-border);
  z-index: 1000;
}

.brand {
  font-weight: 650;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.brand span {
  color: var(--accent);
}

.topbar .spacer {
  flex: 1;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.65rem;
  border-radius: 6px;
  background: #0f1724;
  border: 1px solid var(--panel-border);
  font-size: 0.8rem;
  color: var(--muted);
}

.chip strong {
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

/* —— Map —— */
#map {
  width: 100%;
  height: 100%;
  background: #0a101c;
}

.leaflet-container {
  font-family: var(--font);
  background: #0a101c;
}

.leaflet-control-zoom a {
  background: var(--panel) !important;
  color: var(--text) !important;
  border-color: var(--panel-border) !important;
}

.leaflet-control-attribution {
  background: rgba(12, 18, 32, 0.8) !important;
  color: var(--muted) !important;
}

.leaflet-popup-content-wrapper {
  background: var(--panel);
  color: var(--text);
  border-radius: 10px;
  box-shadow: var(--shadow);
}

.leaflet-popup-tip {
  background: var(--panel);
}

.leaflet-popup-content {
  margin: 0.75rem 0.9rem;
  font-size: 0.85rem;
  line-height: 1.4;
}

.popup-title {
  font-weight: 650;
  margin-bottom: 0.35rem;
}

.popup-meta {
  color: var(--muted);
  font-size: 0.78rem;
}

/* —— Side panel —— */
.side {
  position: absolute;
  top: 3.6rem;
  right: 0.75rem;
  width: min(280px, calc(100vw - 1.5rem));
  max-height: calc(100% - 9rem);
  overflow: auto;
  z-index: 900;
  background: rgba(21, 32, 51, 0.94);
  backdrop-filter: blur(10px);
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 0.85rem 1rem;
}

.side h2 {
  margin: 0 0 0.65rem;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  font-weight: 600;
}

.logger-box {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  margin-bottom: 0.35rem;
}

.logger-status {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.9rem;
}

.logger-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #64748b;
  box-shadow: 0 0 0 3px rgba(100, 116, 139, 0.25);
}

.logger-dot.on {
  background: #34d399;
  box-shadow: 0 0 0 3px rgba(52, 211, 153, 0.28);
}

.logger-dot.err {
  background: #f87171;
  box-shadow: 0 0 0 3px rgba(248, 113, 113, 0.28);
}

.logger-meta {
  font-size: 0.75rem;
  color: var(--muted);
  line-height: 1.45;
  word-break: break-word;
}

.logger-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.logger-actions .btn {
  padding: 0.3rem 0.55rem;
  font-size: 0.78rem;
}

.logger-token {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.75rem;
  color: var(--muted);
}

.logger-token.hidden {
  display: none;
}

.logger-token input {
  background: #0f1724;
  color: var(--text);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 0.4rem 0.55rem;
  font: inherit;
  font-size: 0.8rem;
}

.side h2 + h2 {
  margin-top: 1rem;
}

.filter-list {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.filter-list label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  cursor: pointer;
  user-select: none;
}

.filter-list input {
  accent-color: var(--accent);
}

.swatch {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.swatch.signal-swatch,
.signal-dot {
  width: 12px;
  height: 16px;
  border-radius: 3px;
  background: linear-gradient(180deg, #ef4444 0 33%, #eab308 33% 66%, #22c55e 66% 100%);
  box-shadow: 0 0 0 1px #f8fafc, 0 0 0 2px #0c1220;
  display: inline-block;
}

.signal-icon {
  background: transparent !important;
  border: none !important;
}

.signal-icon .signal-dot {
  display: block;
}

.legend-jams {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.legend-jams .row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.legend-jams .line {
  width: 22px;
  height: 3px;
  border-radius: 2px;
}

/* —— Timeline —— */
.timeline {
  background: linear-gradient(0deg, #0c1220 0%, #152033 100%);
  border-top: 1px solid var(--panel-border);
  padding: 0.75rem 1rem 0.9rem;
  z-index: 1000;
}

.timeline-controls {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
  margin-bottom: 0.55rem;
}

.btn {
  appearance: none;
  border: 1px solid var(--panel-border);
  background: #0f1724;
  color: var(--text);
  border-radius: 8px;
  padding: 0.4rem 0.75rem;
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.btn:hover {
  background: #1a2a40;
  border-color: var(--accent-dim);
}

.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #041018;
  font-weight: 650;
}

.btn.primary:hover {
  background: #38bdf8;
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

select,
.speed {
  background: #0f1724;
  color: var(--text);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 0.4rem 0.55rem;
  font: inherit;
  font-size: 0.85rem;
}

.time-label {
  font-family: var(--mono);
  font-size: 0.9rem;
  font-variant-numeric: tabular-nums;
  min-width: 11rem;
}

.time-label .date {
  color: var(--muted);
  margin-right: 0.4rem;
}

.scrubber-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

#scrubber {
  flex: 1;
  height: 6px;
  appearance: none;
  background: #243247;
  border-radius: 999px;
  outline: none;
  cursor: pointer;
}

#scrubber::-webkit-slider-thumb {
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid #e0f2fe;
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.25);
  cursor: grab;
}

#scrubber::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid #e0f2fe;
  cursor: grab;
}

.range-ends {
  display: flex;
  justify-content: space-between;
  margin-top: 0.35rem;
  font-size: 0.72rem;
  color: var(--muted);
  font-family: var(--mono);
}

.empty {
  position: absolute;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 800;
  background: rgba(12, 18, 32, 0.75);
  text-align: center;
  padding: 2rem;
  pointer-events: none;
}

.empty:not(.hidden) {
  display: flex;
}

.empty.hidden {
  display: none !important;
}

.empty p {
  max-width: 28rem;
  color: var(--muted);
  line-height: 1.5;
}

/* —— Data viewer —— */
.data-panel {
  display: grid;
  grid-template-rows: auto auto auto 1fr auto;
  height: 100%;
  min-height: 0;
  padding: 0.85rem 1rem 1rem;
  gap: 0.65rem;
  background: var(--bg);
}

.data-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  justify-content: space-between;
}

.data-tabs {
  display: inline-flex;
  gap: 0.25rem;
  background: #0f1724;
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 0.15rem;
}

.data-tab {
  appearance: none;
  border: none;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.7rem;
  border-radius: 6px;
  cursor: pointer;
}

.data-tab.active {
  background: #243247;
  color: var(--text);
}

.data-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: end;
}

.data-filters label {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.72rem;
  color: var(--muted);
}

.data-filters select,
.data-filters input[type="text"] {
  background: #0f1724;
  color: var(--text);
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  padding: 0.35rem 0.5rem;
  font: inherit;
  font-size: 0.82rem;
  min-width: 7rem;
}

.data-summary {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.45;
}

.data-table-wrap {
  min-height: 0;
  overflow: auto;
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  background: #0f1724;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
}

.data-table th,
.data-table td {
  padding: 0.45rem 0.65rem;
  text-align: left;
  border-bottom: 1px solid var(--panel-border);
  white-space: nowrap;
}

.data-table th {
  position: sticky;
  top: 0;
  background: #152033;
  color: var(--muted);
  font-weight: 650;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  z-index: 1;
}

.data-table tbody tr:hover td {
  background: rgba(14, 165, 233, 0.08);
}

.data-table td.num {
  font-variant-numeric: tabular-nums;
  font-family: var(--mono);
  font-size: 0.75rem;
}

.data-pager {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.hidden {
  display: none !important;
}

.analytics-panel {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  min-height: 0;
  overflow: auto;
}

.analytics-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: end;
}

.analytics-controls label {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.72rem;
  color: var(--muted);
}

.analytics-controls select {
  background: #0f1724;
  color: var(--text);
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  padding: 0.35rem 0.5rem;
  font: inherit;
  font-size: 0.82rem;
}

.charts-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.chart-card {
  background: #0f1724;
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  padding: 0.75rem 0.85rem 1rem;
  min-height: 220px;
}

.chart-card h3 {
  margin: 0 0 0.55rem;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  font-weight: 650;
}

.chart-card canvas {
  max-height: 220px;
}

.hotspots-row {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 0.75rem;
  min-height: 320px;
}

.hot-map-card {
  min-height: 360px;
  display: flex;
  flex-direction: column;
}

#hot-map {
  flex: 1;
  min-height: 300px;
  border-radius: 8px;
  background: #0a101c;
}

.data-table-wrap.mini {
  max-height: 180px;
}

@media (max-width: 1100px) {
  .charts-grid,
  .hotspots-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 980px) {
  .topbar {
    flex-wrap: wrap;
  }

  .range-bar {
    order: 5;
    width: 100%;
  }
}

@media (max-width: 720px) {
  .side {
    top: auto;
    bottom: 7.5rem;
    right: 0.5rem;
    left: 0.5rem;
    width: auto;
    max-height: 28vh;
  }

  .brand {
    font-size: 0.95rem;
  }

  .chip {
    display: none;
  }

  .chip.keep {
    display: inline-flex;
  }
}