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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  display: flex;
  min-height: 100vh;
  background: #f8f9fa;
  color: #1a1a2e;
}

.sidebar {
  width: 280px;
  min-width: 280px;
  background: #ffffff;
  border-right: 1px solid #e0e0e0;
  padding: 24px 20px;
  overflow-y: auto;
}

.sidebar h1 {
  font-size: 18px;
  margin-bottom: 20px;
}

.sidebar h2 {
  font-size: 14px;
  font-weight: 600;
  color: #555;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 20px;
  margin-bottom: 10px;
}

.sidebar hr {
  border: none;
  border-top: 1px solid #e0e0e0;
  margin: 16px 0;
}

.control-group {
  margin-bottom: 14px;
}

.control-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 4px;
  color: #333;
}

.control-group .value-display {
  font-size: 12px;
  color: #666;
  float: right;
}

.control-group input[type="range"] {
  width: 100%;
  accent-color: #4a6fa5;
}

.control-group select {
  width: 100%;
  padding: 6px 8px;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 13px;
  background: #fff;
}

.main {
  flex: 1;
  padding: 24px 32px;
  overflow-y: auto;
}

.main h1 {
  font-size: 24px;
  margin-bottom: 20px;
}

.metrics-row {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.metric-card {
  background: #fff;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  padding: 16px 20px;
  margin-bottom: 20px;
  display: inline-block;
}

.metric-card .metric-label {
  font-size: 13px;
  color: #666;
  margin-bottom: 4px;
}

.metric-card .metric-value {
  font-size: 28px;
  font-weight: 700;
  color: #1a1a2e;
}

.chart-row {
  display: flex;
  gap: 24px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.chart-container {
  background: #fff;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  padding: 16px;
  flex: 1;
  min-width: 300px;
}

.chart-container.small {
  max-width: 320px;
}

.chart-container canvas {
  width: 100% !important;
  height: auto !important;
}

.metadata p {
  font-size: 12px;
  color: #888;
  margin-bottom: 2px;
}

@media (max-width: 768px) {
  body {
    flex-direction: column;
  }
  .sidebar {
    width: 100%;
    min-width: unset;
    border-right: none;
    border-bottom: 1px solid #e0e0e0;
  }
  .main {
    padding: 16px;
  }
  .chart-row {
    flex-direction: column;
  }
  .chart-container.small {
    max-width: unset;
  }
}