:root {
  --bg: #10172d;
  --panel: #18213b;
  --accent: #72f1d0;
  --accent-text: #06241e;
  --page-glow: rgba(114, 241, 208, 0.2);
}

body {
  background:
    radial-gradient(circle at 13% 10%, rgba(114, 241, 208, 0.19), transparent 25rem),
    radial-gradient(circle at 91% 18%, rgba(139, 124, 255, 0.18), transparent 27rem),
    linear-gradient(180deg, #10172d, #070a17 78%);
}

.stage {
  min-height: 0;
  aspect-ratio: 48 / 31;
  background: #111936;
}

#game-canvas {
  width: 100%;
  height: auto;
  min-height: 0;
  aspect-ratio: 48 / 31;
  background: #111936;
  outline: none;
  touch-action: none;
}

#game-canvas:focus-visible {
  box-shadow: inset 0 0 0 3px rgba(114, 241, 208, 0.75);
}

.stage,
.side-panel,
.camera-card,
.control-card {
  background: rgba(24, 33, 59, 0.91);
}

#debug-canvas {
  transform: scaleX(-1);
}

.hud {
  align-items: flex-start;
}

.hud__group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.hud span {
  background: rgba(7, 11, 27, 0.62);
  backdrop-filter: blur(6px);
}

.hud__restart {
  min-height: 2.35rem;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  background: rgba(7, 11, 27, 0.68);
  color: #fff;
  cursor: pointer;
  font: inherit;
  font-weight: 900;
  padding: 0 0.75rem;
  pointer-events: auto;
}

.hud__restart:hover,
.hud__restart:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}

.overlay-card {
  border-color: rgba(114, 241, 208, 0.28);
  background: rgba(7, 11, 27, 0.93);
}

.overlay-card .eyebrow {
  margin-bottom: 0.55rem;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.overlay-card .result-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.55rem;
  margin: 1rem 0;
}

.result-grid div {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.045);
  padding: 0.7rem;
}

.result-grid small,
.result-grid strong {
  display: block;
}

.result-grid small {
  margin-bottom: 0.2rem;
  color: var(--muted);
}

.result-grid strong {
  color: #fff;
  font-size: 1.1rem;
}

.overlay-note {
  font-size: 0.88rem;
}

@media (max-width: 640px) {
  .stage,
  #game-canvas {
    min-height: 0;
  }

  .hud {
    padding: 0.55rem;
    font-size: 0.75rem;
  }

  .hud span {
    padding: 0.4rem 0.5rem;
  }

  .hud__restart {
    min-height: 2rem;
    padding: 0 0.55rem;
  }
}