/* Cyber Pong Styles */
.game-container {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 20px;
  z-index: 2;
}

#gameCanvas {
  background: rgba(10, 14, 26, 0.8);
  border: 2px solid rgba(6, 214, 160, 0.3);
  border-radius: var(--radius-card);
  box-shadow: 0 0 30px rgba(6, 214, 160, 0.2), inset 0 0 50px rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  max-width: 100%;
  image-rendering: pixelated; /* crisp lines */
}

.score-board {
  display: flex;
  gap: 30px;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  text-shadow: 0 0 20px rgba(6, 214, 160, 0.8);
  color: #fff;
}

.score-divider {
  font-size: 2rem;
  color: var(--color-accent-pink);
  text-shadow: 0 0 15px var(--color-accent-pink);
}

.overlay {
  position: absolute;
  top: 55%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(10, 14, 26, 0.9);
  padding: 40px;
  border-radius: var(--radius-card);
  border: 1px solid rgba(244, 114, 182, 0.5);
  box-shadow: 0 0 40px rgba(244, 114, 182, 0.3);
  text-align: center;
  z-index: 10;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.overlay h2 {
  font-family: var(--font-display);
  font-size: 2.5rem;
  margin-bottom: 10px;
  background: linear-gradient(135deg, var(--color-accent-cyan), var(--color-accent-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.overlay p {
  color: var(--color-text-muted);
  margin-bottom: 24px;
  font-size: 1.1rem;
}

.hidden {
  display: none !important;
}

.btn {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 14px 32px;
  background: rgba(244, 114, 182, 0.1);
  color: var(--color-accent-pink);
  border: 1px solid var(--color-accent-pink);
  border-radius: var(--radius-btn);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn:hover {
  background: rgba(244, 114, 182, 0.2);
  box-shadow: 0 0 20px rgba(244, 114, 182, 0.4);
  transform: translateY(-2px);
}

.difficulty-options {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 24px;
}

.diff-btn {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  padding: 8px 16px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: transparent;
  color: var(--color-text-muted);
  border-radius: var(--radius-btn);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.diff-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.diff-btn.active {
  border-color: var(--color-accent-cyan);
  color: var(--color-accent-cyan);
  background: rgba(6, 214, 160, 0.1);
  box-shadow: 0 0 10px rgba(6, 214, 160, 0.2);
}