.space-invaders-panel {
  background:
    radial-gradient(circle at top, rgba(115, 227, 180, 0.08), transparent 34%),
    linear-gradient(180deg, rgba(18, 27, 46, 0.94), rgba(9, 14, 24, 0.92));
}

.invaders-surface {
  display: flex;
  justify-content: center;
}

.invaders-stage {
  width: min(100%, 34rem);
  padding: clamp(0.85rem, 2vw, 1.15rem);
  background:
    radial-gradient(circle at 50% 0%, rgba(118, 255, 190, 0.12), transparent 28%),
    linear-gradient(180deg, rgba(7, 13, 24, 0.98), rgba(4, 8, 15, 0.98));
}

.invaders-canvas {
  display: block;
  width: 100%;
  aspect-ratio: 9 / 14;
  border-radius: 22px;
  border: 1px solid rgba(140, 255, 196, 0.18);
  background:
    radial-gradient(circle at 20% 8%, rgba(102, 210, 255, 0.08), transparent 16%),
    radial-gradient(circle at 80% 16%, rgba(118, 255, 190, 0.08), transparent 18%),
    linear-gradient(180deg, #06101d 0%, #03070f 100%);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.03),
    inset 0 -140px 120px rgba(31, 138, 74, 0.05);
  touch-action: none;
}

.invaders-touch-controls {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}

.invaders-touch-controls .touch-button {
  min-height: 3.4rem;
  min-width: 0;
  width: 100%;
  border-radius: 18px;
  border: 1px solid rgba(140, 255, 196, 0.16);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(115, 227, 180, 0.08));
  color: var(--color-text);
  font-weight: 800;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.invaders-touch-controls .touch-button:active {
  transform: scale(0.98);
}

.invaders-touch-controls .touch-button:nth-child(2) {
  background: linear-gradient(180deg, rgba(255, 183, 107, 0.24), rgba(255, 118, 92, 0.16));
  border-color: rgba(255, 183, 107, 0.26);
}

.invaders-status-panel {
  background:
    radial-gradient(circle at 15% 0%, rgba(115, 227, 180, 0.08), transparent 26%),
    linear-gradient(180deg, rgba(18, 28, 46, 0.96), rgba(9, 15, 25, 0.94));
}

@media (min-width: 560px) {
  .invaders-stage {
    width: min(100%, 36rem);
  }
}