:root {
  color-scheme: dark;
  font-family: "Inter", "Segoe UI", sans-serif;
  --accent: #5ad1ff;
  --bg: radial-gradient(circle at 50% 20%, #141b3a 0%, #05070f 70%);
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  display: flex;
  justify-content: center;
  align-items: center;
  color: #f8fbff;
}

.game-shell {
  position: relative;
  width: min(100vw, 720px);
  height: min(100vh, 1280px);
  aspect-ratio: 9 / 16;
  max-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

canvas#game {
  width: 100%;
  height: 100%;
  border-radius: 16px;
  box-shadow: 0 20px 40px rgba(3, 10, 28, 0.55);
  background: transparent;
  touch-action: none;
}

.noscript {
  position: fixed;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 8px 16px;
  background: rgba(12, 21, 42, 0.8);
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 14px;
}

@media (max-width: 600px) {
  .game-shell {
    width: 100vw;
    height: 100vh;
    border-radius: 0;
  }

  canvas#game {
    border-radius: 0;
  }
}