:root {
  --bg: #0f172a;
  --card: #111827;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --accent: #60a5fa;
  --accent-2: #34d399;
  --table-border: #1f2937;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 16px;
}

header h1 { 
  margin: 0 0 4px 0; 
  font-weight: 700; 
  font-size: 1.75rem;
}

.muted { color: var(--muted); }

.controls {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-top: 12px;
  flex-wrap: wrap;
}

button {
  background: var(--card);
  border: 1px solid var(--table-border);
  color: var(--text);
  padding: 8px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: background-color 0.2s, border-color 0.2s;
}

button:hover:not(:disabled) {
  background: var(--table-border);
  border-color: var(--accent);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 8px 16px;
  margin-top: 12px;
}

.stats .label { 
  color: var(--muted); 
  margin-right: 6px; 
}

.error {
  margin-top: 10px;
  background: #1f2937;
  border: 1px solid #7f1d1d;
  color: #fecaca;
  padding: 10px 12px;
  border-radius: 8px;
}

.hidden { display: none; }

main { padding-top: 8px; }

.card {
  background: var(--card);
  border: 1px solid var(--table-border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 16px;
}

.card h2 {
  margin: 0 0 8px 0;
  font-size: 1.5rem;
}

.chart-description {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 16px;
  line-height: 1.5;
}

/* ---------- Facet charts grid ---------- */
.charts-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 768px) {
  .charts-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1200px) {
  .charts-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.chart-card {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 16px;
  transition: box-shadow 0.2s, transform 0.2s;
  cursor: pointer;
}

.chart-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transform: translateY(-2px);
}

.chart-title {
  margin: 0 0 12px 0;
  color: #0f172a;
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
}

.chart-card canvas {
  width: 100%;
  height: auto;
  display: block;
  background: #ffffff;
  border-radius: 8px;
}

footer { 
  padding: 32px 0;
  text-align: center;
}

footer a {
  color: var(--accent);
  text-decoration: underline;
}

/* ---------- Detail page styles ---------- */
.chart-detail-container {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 20px;
  margin-top: 8px;
}

.chart-detail-container canvas {
  width: 100%;
  height: auto;
  display: block;
  background: #ffffff;
  border-radius: 8px;
}

.table-controls {
  margin-bottom: 8px;
  font-size: 0.9rem;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--table-border);
  text-align: left;
}

thead th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

tbody tr:hover {
  background: rgba(255,255,255,0.02);
}

td.positive {
  color: #10b981;
  font-weight: 500;
}

td.negative {
  color: #ef4444;
  font-weight: 500;
}