*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px 16px;
  background: radial-gradient(ellipse 120% 80% at 50% 0%, #1e293b 0%, #0f172a 45%, #020617 100%);
  color: #e2e8f0;
  font-family: system-ui, "Segoe UI", sans-serif;
}

#canvas {
  display: block;
  width: min(1000px, 100%);
  height: auto;
  max-height: min(500px, 70vh);
  aspect-ratio: 1000 / 500;
  border: none;
  border-radius: 12px;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.08),
    0 24px 48px rgba(0, 0, 0, 0.45),
    0 0 80px rgba(56, 189, 248, 0.08);
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}