/* AUREA — stile minimale. Il canvas lavora sempre a 1920x1080 e viene
   scalato via JS mantenendo il rapporto 16:9 (letterbox). */

:root {
  --bg: #05060a;
}

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

html, body {
  width: 100%;
  height: 100%;
  background: var(--bg);
  overflow: hidden;
  touch-action: none;
  /* su mobile: niente highlight al tocco, niente menu da pressione lunga, niente selezione */
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
  overscroll-behavior: none;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  cursor: default;
}

#stage {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle at 50% 42%, #0b1020 0%, #05060a 60%, #020205 100%);
}

#game {
  display: block;
  background: #05060a;
  box-shadow:
    0 0 1px rgba(122, 215, 255, 0.25),
    0 0 80px rgba(0, 0, 0, 0.9),
    0 0 140px rgba(8, 12, 26, 0.6) inset;
  /* dimensioni reali impostate da JS */
  image-rendering: -webkit-optimize-contrast;
}