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

:root {
  --bg-primary: #0d0d1a;
  --bg-panel: #1a1a2e;
  --bg-panel-hover: #222240;
  --border: #2a2a4a;
  --text-primary: #e0e0f0;
  --text-secondary: #8888aa;
  --text-muted: #555570;
  --accent: #e5a00d;
  --accent-dim: #b8800a;
  --accent-glow: rgba(229, 160, 13, 0.15);
  --success: #4caf50;
  --info: #2196f3;
  --danger: #f44336;
  --radius: 8px;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html { font-size: 14px; }

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Header */
.header {
  background: linear-gradient(135deg, var(--bg-panel) 0%, #16162e 100%);
  border-bottom: 1px solid var(--border);
  padding: 1.2rem 2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.header h1 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.02em;
}

.header .subtitle {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

/* Summary cards */
.summary-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  padding: 1.5rem 2rem;
}

.summary-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
  text-align: center;
  transition: border-color 0.2s;
}

.summary-card:hover {
  border-color: var(--accent);
}

.summary-card .label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.4rem;
}

.summary-card .value {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent);
}

/* Dashboard grid */
.dashboard {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1rem;
  padding: 0 2rem 2rem;
}

/* Panel */
.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
  min-height: 300px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.panel.wide { grid-column: span 12; }
.panel.half { grid-column: span 6; }
.panel.third { grid-column: span 4; }
.panel.quarter { grid-column: span 3; }

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.8rem;
  flex-shrink: 0;
}

.panel-header h2 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

.panel-header select {
  background: var(--bg-primary);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  cursor: pointer;
}

.panel-header select:focus {
  outline: none;
  border-color: var(--accent);
}

.chart-container {
  flex: 1;
  min-height: 0;
  position: relative;
}

/* Loading spinner */
.panel .loading {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.panel .loading::after {
  content: '';
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-left: 0.5rem;
}

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

/* Error state */
.panel .error {
  color: var(--danger);
  font-size: 0.8rem;
  text-align: center;
  padding: 2rem;
}

/* Tooltip */
.plex-tooltip {
  position: fixed;
  pointer-events: none;
  background: #111128;
  border: 1px solid var(--accent);
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
  font-size: 0.78rem;
  color: var(--text-primary);
  z-index: 1000;
  max-width: 280px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.5);
  opacity: 0;
  transition: opacity 0.15s;
}

.plex-tooltip.visible { opacity: 1; }

.plex-tooltip .tt-label {
  color: var(--text-secondary);
  font-size: 0.7rem;
  margin-bottom: 0.15rem;
}

.plex-tooltip .tt-value {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--accent);
}

/* D3 chart styles */
.axis text {
  fill: var(--text-secondary);
  font-size: 11px;
}

.axis line, .axis path {
  stroke: var(--border);
}

.grid line {
  stroke: var(--border);
  stroke-opacity: 0.3;
}

.grid path { stroke: none; }

/* Treemap */
#panel-treemap {
  max-height: 550px;
}

#panel-treemap .chart-container {
  min-height: 0;
  overflow: hidden;
}

.treemap-breadcrumb {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
  cursor: pointer;
}

.treemap-breadcrumb:hover { color: var(--accent); }

.treemap-cell text {
  fill: #fff;
  font-size: 10px;
  pointer-events: none;
  text-shadow: 0 1px 2px rgba(0,0,0,0.7);
}

/* Heatmap */
.heatmap-cell {
  stroke: var(--bg-panel);
  stroke-width: 2;
  rx: 3;
}

/* Responsive */
@media (max-width: 1200px) {
  .panel.half { grid-column: span 6; }
  .panel.third { grid-column: span 6; }
  .panel.quarter { grid-column: span 6; }
}

@media (max-width: 768px) {
  .dashboard { grid-template-columns: 1fr; padding: 0 1rem 1rem; }
  .panel.wide, .panel.half, .panel.third, .panel.quarter { grid-column: span 1; }
  .summary-row { grid-template-columns: repeat(2, 1fr); padding: 1rem; }
  .header { padding: 1rem; }
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }