body {
  margin: 0;
  background: #1e1a2f;
  color: #e0e0e0;
  font-family: 'Segoe UI', Arial, sans-serif;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pong-container {
  position: relative;
  width: 90%; max-width: 900px;
  background: #241f33;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.8);
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

header h1 {
  font-size: 2.5rem; margin-bottom: 12px;
  color: #e6ccff; letter-spacing: 3px;
  text-shadow: 0 2px 6px rgba(0,0,0,0.7);
}

#muteToggle {
  position: absolute; top: 24px; right: 24px;
  cursor: pointer;
}

.score-display {
  font-family: 'Orbitron', sans-serif;
  font-size: 2.7rem; margin-bottom: 10px;
  color: #e6ccff;
  text-shadow: 0 2px 4px rgba(0,0,0,0.6);
}

canvas#pong {
  background: radial-gradient(circle at center, #6a6db0, #e6ccf5);
  border-radius: 8px;
  box-shadow: 0 6px 25px rgba(0,0,0,0.6);
  margin-bottom: 16px; border: 2px solid #4b3d84;
}

.controls {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

.button-group {
  display: flex; gap: 12px;
  margin-top: 20px;
}

.button-group button {
  background: #6a6db0;
  color: #f5f5f5;
  border: none;
  border-radius: 8px;
  padding: 10px 20px;
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.25s;
}

.button-group button:hover {
  background: #8b5b93;
}

.difficulty-wrapper {
  margin-top: 15px;
  display: flex;
  justify-content: center;
  margin-left: -5px;
}

select {
  padding: 6px 10px;
  border-radius: 6px;
  border: none;
  background: #4b3d84;
  color: #fff;
  font-size: 1rem;
}

#muteToggle svg {
  filter: drop-shadow(0 0 1px #000);
  transition: fill 0.3s ease;
}

#countdown {
  font-family: 'Orbitron', sans-serif;
  font-size: 3rem;
  color: #f2e2e2;
  margin-top: -8px;
  text-align: center;
  height: 70px;
}

footer {
  margin-top: -1px;
  font-size: 0.95rem;
  color: #bbb;
  text-align: center;
}

@media (max-width:900px) {
  canvas#pong {
    width:95vw; height:60vw;
    max-width:800px; max-height:500px;
  }
}