:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #090c16;
  color: #f7fbff;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
}

body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 50% 0%, rgba(43, 174, 168, 0.24), transparent 34%),
    linear-gradient(160deg, #090c16 0%, #111827 54%, #171018 100%);
}

#game-shell {
  width: min(100vw, 56.25vh, 430px);
  aspect-ratio: 9 / 16;
  max-height: 100vh;
  position: relative;
  display: grid;
  place-items: stretch;
  border: 1px solid rgba(247, 251, 255, 0.12);
  background: #0c111d;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
}

#game-canvas {
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
  user-select: none;
  cursor: default;
}

noscript {
  position: absolute;
  inset: auto 20px 24px;
  text-align: center;
  color: #ffd166;
}