*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 12px;
  background: #0b0c10;
  font-family: 'Inter', "Nunito", sans-serif;
  color: #c5c6c7;
  -webkit-font-smoothing: antialiased;
}

.game-wrapper {
  position: relative;
  width: 100%;
  max-width: min(480px, 95vw);
  border-radius: 16px;
  overflow: hidden;
  margin: 20px auto; /* Centered explicitly like chess */
  box-shadow: 0 0 30px rgba(102, 252, 241, 0.2), 0 0 0 2px rgba(102, 252, 241, 0.4);
}

#gameCanvas {
  display: block;
  width: 100%;
  aspect-ratio: 480 / 600;
  max-height: 70vh;
  height: auto;
  background: radial-gradient(circle at center, #1f2833 0%, #0b0c10 100%); /* Cyberpunk dark */
  cursor: pointer;
  touch-action: none;
}

.game-ui {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  pointer-events: none;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.35), transparent);
}

.score-label,
.high-score-label {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.85);
}

.score-group {
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.score-value {
  font-size: 32px;
  font-weight: 900;
  color: #66fcf1;  /* Highlighting Score with bright cyan! */
  text-shadow: 0 0 15px #66fcf1, 0 2px 4px rgba(0, 0, 0, 0.8);
}

.high-score-value {
  font-size: 24px;
  font-weight: 900;
  color: #ffd93d; /* Distinctly gold best score */
}

.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.75);
  padding: 24px;
  text-align: center;
}

.overlay.hidden {
  display: none;
}

.overlay-start h1 {
  font-size: 2.5rem;
  font-weight: 900;
  color: #66fcf1;
  margin: 0 0 16px;
  text-shadow: 0 0 10px #45a29e, 0 6px 12px rgba(0, 0, 0, 0.6);
}

.overlay-start p {
  color: rgba(255, 255, 255, 0.9);
  margin: 8px 0;
  font-size: 1rem;
}

.overlay-start kbd {
  display: inline-block;
  padding: 4px 8px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 6px;
  font-family: inherit;
  font-size: 0.9em;
}

/* Base global button from PlayMix */
.pmg-btn {
    background: linear-gradient(135deg, #00f2fe, #4facfe);
    border: none;
    padding: 12px 24px;
    border-radius: 25px;
    color: #fff;
    font-weight: bold;
    font-size: 16px;
    cursor: pointer;
    box-shadow: 0 5px 15px rgba(0,242,254,0.4);
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
    transition: transform 0.2s, box-shadow 0.2s;
    width: 100%;
}
.pmg-btn:active { transform: scale(0.95); }

.pmg-btn-outline {
    background: transparent;
    border: 2px solid #888;
    padding: 12px 24px;
    border-radius: 25px;
    color: #fff;
    font-weight: bold;
    cursor: pointer;
    width: 100%;
    box-sizing: border-box;
}

.overlay-gameover h2 {
  font-size: 2rem;
  font-weight: 900;
  color: #ff6b6b;
  margin: 0 0 8px;
}

.overlay-gameover p {
  color: rgba(255, 255, 255, 0.95);
  font-size: 1.1rem;
  margin: 8px 0;
}

.overlay-gameover #finalScoreEl {
  color: #ffd93d;
  font-weight: 900;
}

/* Mobile control buttons */
.mobile-controls {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 16px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  pointer-events: none;
}

.mobile-controls .ctrl-btn {
  pointer-events: auto;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(8px);
  color: #fff;
  font-size: 28px;
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  transition: transform 0.1s, background 0.1s;
}

.mobile-controls .ctrl-btn:active,
.mobile-controls .ctrl-btn.active {
  background: rgba(107, 203, 119, 0.8);
  transform: scale(0.95);
}

@media (hover: hover) {
  .mobile-controls .ctrl-btn:hover {
    background: rgba(255, 255, 255, 0.35);
  }
}

.overlay-start .mobile-hint {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.75);
}

.back-btn {
    position: absolute;
    top: 15px;
    left: 15px;
    color: #fff;
    text-decoration: none;
    font-size: 12px;
    opacity: 0.5;
    z-index: 50;
}