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

body {
  font-family: 'Montserrat', 'Open Sans', system-ui, sans-serif;
  background: transparent;
}

#chart {
  width: 100%;
  height: 100vh;
}

#error {
  display: none;
  padding: 24px;
  color: #c0392b;
  font-size: 13px;
  background: #fdf2f2;
  border-left: 3px solid #c0392b;
}