body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f4fdf4;
  color: #222;
}

.container {
  width: 100%;
  height: 100vh;
  padding: 20px;
  box-sizing: border-box;
}

header {
  text-align: center;
  margin-bottom: 20px;
}

header .logo {
  height: 80px;
}

h1 {
  margin: 10px 0;
  color: #006400;
}

h2 {
  margin: 0;
  font-weight: normal;
}

canvas {
  width: 100% !important;
  height: 80vh !important;
}