* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #000;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

#canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

#splash {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.95);
}

#enter-button {
  padding: 20px 60px;
  font-size: 24px;
  color: #fff;
  background: transparent;
  border: 2px solid rgba(255, 255, 255, 0.6);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.3s ease;
}

#enter-button:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

#enter-button:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 4px;
}

#controls {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 15px 20px;
  background: rgba(0, 0, 0, 0.7);
  border-radius: 8px;
  backdrop-filter: blur(10px);
}

.controls-row {
  display: flex;
  gap: 10px;
}

#controls button {
  width: 80px;
  height: 36px;
  font-size: 14px;
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
}

#controls button:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.5);
}

#controls button:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

/* Shuffle — round, spans full width of prev+next+gap */
#shuffle-btn {
  width: 170px;
  height: 42px;
  border-radius: 21px;
  font-size: 14px;
  letter-spacing: 1px;
}

#volume-slider {
  width: 170px;
  height: 4px;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 2px;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
}

#volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  background: #fff;
  border-radius: 50%;
  cursor: pointer;
}

#volume-slider::-moz-range-thumb {
  width: 14px;
  height: 14px;
  background: #fff;
  border-radius: 50%;
  cursor: pointer;
  border: none;
}

#volume-slider:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

.hidden {
  display: none !important;
}