canvas {
  position: absolute;
  top: 0;
  left: 0;
  z-index: -1;
}

:root {
  --color-primary: #261EF4;
  --color-text: #111827;
  --color-secondary: #E5E7EB;
  --color-ethical: #065F46;
  --color-surface: #EEFFDB;
}

html, body {
  margin: 0;
  padding: 0;
  background: #FAFAFA;
  overflow: hidden;
  scroll-behavior: smooth;
  color: var(--color-text);
  font-family: 'IBM Plex Sans', sans-serif;
}

main {
  height: 100vh;
  width: 100vw;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: #D1D5DB #FAFAFA;
}

main::-webkit-scrollbar {
  width: 8px;
}

main::-webkit-scrollbar-track {
  background: #FAFAFA;
}

main::-webkit-scrollbar-thumb {
  background: #D1D5DB;
  border-radius: 4px;
}

main::-webkit-scrollbar-thumb:hover {
  background: #9CA3AF;
}

.chart-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.chart-card {
  background: #FFFFFF;
  border: 1px solid #E5E7EB;
  border-radius: 12px;
  padding: 1.25rem;
  box-shadow: 0 8px 24px rgba(17, 24, 39, 0.06);
  display: flex;
  flex-direction: column;
}

.chart-header {
  margin-bottom: 0.75rem;
  border-bottom: 1px solid #E5E7EB;
  padding-bottom: 0.5rem;
}

.chart-title {
  font-size: 1rem;
  font-weight: 600;
  color: #111827;
}

.chart-container {
  height: 300px;
  flex-grow: 1;
}