/* ============================================================
   arcade-engine.css — Arcade Canvas + HUD + CRT Glow
   Shared styles for all /games minigames using ArcadeEngine.
   ============================================================ */

/* ── Canvas container ── */
.arcade-canvas-wrap {
  position: relative;
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: 4px;
  background: var(--bg-screen, #080c08);
}

.arcade-canvas-wrap canvas {
  display: block;
  width: 100%;
  height: 100%;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

/* ── CRT scanline overlay ──
   Applied via ::after pseudo on the canvas wrapper.
   Same technique as the main CRT stylesheet. */
.arcade-canvas-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0px,
    transparent 2px,
    rgba(0, 0, 0, var(--scanline-opacity, 0.12)) 2px,
    rgba(0, 0, 0, var(--scanline-opacity, 0.12)) 4px
  );
  mix-blend-mode: multiply;
  z-index: 2;
}

/* ── Phosphor glow ──
   Soft outer glow around the canvas, simulating CRT edge bleed. */
.arcade-canvas-wrap::before {
  content: '';
  position: absolute;
  inset: -2px;
  pointer-events: none;
  border-radius: 6px;
  box-shadow:
    inset 0 0 30px rgba(51, 255, 51, 0.06),
    0 0 15px rgba(51, 255, 51, 0.04);
  z-index: 1;
}

/* Theme-aware glow */
body[data-theme] .arcade-canvas-wrap::before {
  box-shadow:
    inset 0 0 30px var(--phosphor-glow, rgba(51, 255, 51, 0.06)),
    0 0 15px var(--phosphor-glow, rgba(51, 255, 51, 0.04));
}

/* ── Responsive sizing ──
   Portrait phones: full width minus page padding.
   Landscape / tablet: constrain to 600px. */
@media (max-width: 640px) {
  .arcade-canvas-wrap {
    max-width: 100%;
    border-radius: 0;
  }
}

@media (min-width: 641px) and (orientation: landscape) {
  .arcade-canvas-wrap {
    max-width: 600px;
  }
}

/* ── HUD layer (rendered by arcade-hud.js on canvas) ──
   These classes are for optional DOM-based HUD elements
   that sit outside the canvas (e.g. currency counter). */

.arcade-hud-external {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 8px;
  font-family: 'Courier New', Courier, monospace;
  font-size: 12px;
  color: var(--phosphor, #33ff33);
  pointer-events: none;
  z-index: 3;
}

.arcade-hud-lives {
  color: var(--phosphor, #33ff33);
}

.arcade-hud-lives.critical {
  color: #ff4757;
  animation: arcade-pulse 0.6s ease-in-out infinite;
}

.arcade-hud-score {
  color: var(--phosphor, #33ff33);
  text-shadow: 0 0 4px var(--phosphor-glow, rgba(51, 255, 51, 0.3));
}

.arcade-hud-currency {
  color: var(--amber, #ffb000);
  text-shadow: 0 0 4px var(--amber-glow, rgba(255, 176, 0, 0.3));
}

/* ── Score popup animation (CSS fallback for non-canvas popups) ── */
.arcade-score-popup {
  position: absolute;
  font-family: 'Courier New', Courier, monospace;
  font-size: 14px;
  font-weight: bold;
  color: var(--amber, #ffb000);
  text-shadow: 0 0 6px var(--amber-glow, rgba(255, 176, 0, 0.4));
  pointer-events: none;
  animation: arcade-float-up 1.5s ease-out forwards;
  z-index: 4;
}

@keyframes arcade-float-up {
  0%   { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(-40px); }
}

@keyframes arcade-pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.4; }
}

/* ── Currency award animation (coin cascade on game over) ── */
.arcade-coin-cascade {
  position: absolute;
  font-size: 20px;
  pointer-events: none;
  animation: arcade-coin-fall 1.2s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  z-index: 5;
}

@keyframes arcade-coin-fall {
  0%   { opacity: 1; transform: translateY(0) scale(1); }
  60%  { opacity: 1; transform: translateY(30px) scale(1.2); }
  100% { opacity: 0; transform: translateY(60px) scale(0.8); }
}

/* ── Touch feedback ──
   Brief flash on canvas tap for tactile confirmation. */
.arcade-canvas-wrap.touch-flash::after {
  background: rgba(255, 255, 255, 0.08);
  transition: background 0.1s;
}

/* ── Game-specific emoji rendering hints ──
   Ensures emoji render consistently across platforms
   when drawn in DOM (not canvas). */
.arcade-emoji {
  font-family: 'Apple Color Emoji', 'Segoe UI Emoji', 'Noto Color Emoji', sans-serif;
  line-height: 1;
  user-select: none;
  -webkit-user-select: none;
}

/* ── Fullscreen toggle (optional) ── */
.arcade-fullscreen-btn {
  position: absolute;
  bottom: 8px;
  right: 8px;
  width: 28px;
  height: 28px;
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid var(--phosphor-dim, #1a9c1a);
  border-radius: 4px;
  color: var(--phosphor-dim, #1a9c1a);
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 6;
  transition: border-color 0.2s, color 0.2s;
}

.arcade-fullscreen-btn:hover {
  border-color: var(--phosphor, #33ff33);
  color: var(--phosphor, #33ff33);
}

/* ── Accessibility: reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  .arcade-canvas-wrap::after {
    background: rgba(0, 0, 0, var(--scanline-opacity, 0.12));
  }
  .arcade-score-popup {
    animation-duration: 0.01ms;
  }
  .arcade-coin-cascade {
    animation-duration: 0.01ms;
  }
  .arcade-hud-lives.critical {
    animation: none;
  }
}