:root {
  --arcade-sky: #dcecf1;
  --arcade-blue: #3b82a0;
  --arcade-red: #d95842;
  --arcade-yellow: #f2c94c;
  --arcade-water: #3d7894;
  --arcade-deep-water: #245269;
}

.arcade-stage {
  position: relative;
  min-height: 360px;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: var(--tg-dark);
  isolation: isolate;
}

.arcade-stage canvas {
  display: block;
  width: 100%;
  height: auto;
  max-height: 640px;
  aspect-ratio: 16 / 9;
  touch-action: none;
}

.arcade-hud {
  position: absolute;
  z-index: 2;
  inset: var(--tg-space-4) var(--tg-space-5) auto;
  display: flex;
  justify-content: flex-end;
  gap: var(--tg-space-5);
  pointer-events: none;
}

.arcade-hud span {
  min-width: 72px;
  display: grid;
  color: var(--tg-panel);
  font-size: 20px;
  font-weight: 900;
  text-align: right;
  font-variant-numeric: tabular-nums;
  text-shadow: 0 1px 0 var(--tg-dark);
}

.arcade-hud small {
  color: var(--tg-line);
  font-size: 12px;
  letter-spacing: .08em;
}

.arcade-overlay {
  position: absolute;
  z-index: 4;
  inset: 0;
  display: grid;
  place-items: center;
  padding: var(--tg-space-5);
  background: color-mix(in srgb, var(--tg-dark) 82%, transparent);
}

.arcade-overlay[hidden] { display: none; }

.arcade-dialog {
  width: min(440px, 100%);
  padding: var(--tg-space-6);
  border: 1px solid color-mix(in srgb, var(--tg-panel) 28%, transparent);
  border-radius: var(--tg-radius);
  background: var(--tg-panel);
  color: var(--tg-ink);
  text-align: center;
}

.arcade-dialog h2 { margin: 0 0 var(--tg-space-2); font-size: 32px; }
.arcade-dialog p { margin: 0 0 var(--tg-space-5); color: var(--tg-muted); line-height: 1.6; }
.arcade-dialog .final-score { display: block; margin-bottom: var(--tg-space-2); font-size: 48px; font-variant-numeric: tabular-nums; }
.arcade-dialog .final-summary { min-height: 24px; }

.arcade-primary,
.arcade-touch button,
.arcade-finish-button {
  min-height: 48px;
  border: 0;
  border-radius: 8px;
  padding: 0 var(--tg-space-5);
  background: var(--tg-orange);
  color: var(--tg-panel);
  font: inherit;
  font-weight: 900;
  cursor: pointer;
}

.arcade-primary:hover,
.arcade-touch button:hover,
.arcade-finish-button:hover { filter: brightness(.92); }

.arcade-primary:active,
.arcade-touch button:active,
.arcade-finish-button:active { transform: translateY(1px); }

.arcade-primary:disabled,
.arcade-touch button:disabled,
.arcade-finish-button:disabled { opacity: .48; cursor: default; }

.arcade-primary:focus-visible,
.arcade-touch button:focus-visible,
.arcade-finish-button:focus-visible {
  outline: 3px solid rgba(255, 122, 26, .42);
  outline-offset: 2px;
}

.arcade-touch {
  display: flex;
  justify-content: center;
  gap: var(--tg-space-2);
  padding: var(--tg-space-3) var(--tg-space-4);
  border-top: 1px solid var(--tg-line);
  background: var(--tg-panel);
}

.arcade-touch button { min-width: 64px; background: var(--tg-dark); }
.arcade-touch .wide { min-width: 152px; }
.arcade-touch .accent { background: var(--tg-orange); }
.arcade-touch .arcade-finish-button { margin-left: auto; background: var(--tg-muted); }

.arcade-status {
  min-height: 48px;
  display: flex;
  align-items: center;
  padding: var(--tg-space-3) var(--tg-space-5);
  border-top: 1px solid var(--tg-line);
  background: var(--tg-panel);
  color: var(--tg-muted);
  font-size: 14px;
}

.arcade-status strong { color: var(--tg-ink); }
.arcade-record-form[hidden] { display: none; }
.arcade-record-form .score-submit { margin-top: var(--tg-space-4); }
.arcade-record-form .retry-button { margin-top: var(--tg-space-2); }
.arcade-record-note { min-height: 20px; margin: var(--tg-space-2) 0 0; font-size: 13px; }

@media (max-width: 720px) {
  .arcade-stage { min-height: 220px; }
  .arcade-hud { inset: var(--tg-space-2) var(--tg-space-3) auto; gap: var(--tg-space-3); }
  .arcade-hud span { min-width: 56px; font-size: 16px; }
  .arcade-hud small { font-size: 9px; }
  .arcade-dialog { padding: var(--tg-space-5); }
  .arcade-dialog h2 { font-size: 24px; }
  .arcade-dialog .final-score { font-size: 40px; }
  .arcade-touch { flex-wrap: wrap; }
  .arcade-touch button { flex: 1 1 56px; }
  .arcade-touch .wide { flex-basis: 144px; }
  .arcade-touch .arcade-finish-button { width: 100%; margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .arcade-primary:active,
  .arcade-touch button:active,
  .arcade-finish-button:active { transform: none; }
}