* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
}

body {
  background-color: #1a1a1a;
  color: #e0e0e0;
  height: 100vh;
  overflow: hidden;
}

.container {
  display: flex;
  height: 100vh;
  gap: 0;
}

/* Canvas Panel */
.canvas-panel {
  flex: 1;
  background-color: #2d2d2d;
  display: flex;
  flex-direction: column;
  border-right: 1px solid #444;
}

/* Controls Panel */
.controls-panel {
  flex: 0 0 320px;
  background-color: #2d2d2d;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.panel-header {
  padding: 15px 20px;
  background-color: #333333;
  color: #ffffff;
  font-weight: 600;
  font-size: 16px;
  border-bottom: 1px solid #444;
}

.panel-content {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
}

/* Canvas Container */
#canvas-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
  height: 100%;
}

#game-canvas {
  border: 1px solid #555;
  border-radius: 4px;
  background-color: #404040;
  cursor: pointer;
  flex: auto;
  max-width: 710px;
  max-height: 710px;
}

/* Control Sections */
.control-section {
  margin-bottom: 25px;
  padding-bottom: 20px;
  border-bottom: 1px solid #444;
}

.control-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.control-section h4 {
  color: #ffffff;
  margin-bottom: 15px;
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Button Styles */
.button-group {
  display: flex;
  gap: 10px;
  margin-bottom: 15px;
  flex-wrap: wrap;
}

button {
  padding: 8px 16px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.2s ease;
  background-color: #4a4a4a;
  color: #e0e0e0;
}

button:hover {
  background-color: #5a5a5a;
  transform: translateY(-1px);
}

button:active {
  transform: translateY(0);
}

.primary-btn {
  background-color: #4a86e8 !important;
  color: white !important;
}

.primary-btn:hover {
  background-color: #3a76d8 !important;
}

.primary-btn.playing {
  background-color: #ff6b6b !important;
}

.primary-btn.playing:hover {
  background-color: #ff5252 !important;
}

/* Pattern Buttons */
.patterns-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.pattern-btn {
  padding: 10px 8px;
  font-size: 12px;
  text-align: center;
}

/* Slider Styles */
.slider-group {
  margin-bottom: 15px;
}

.slider-group label {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  color: #b0b0b0;
}

input[type="range"] {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: #555;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #4a86e8;
  cursor: pointer;
  transition: all 0.2s ease;
}

input[type="range"]::-webkit-slider-thumb:hover {
  background: #3a76d8;
  transform: scale(1.1);
}

input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #4a86e8;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
}

input[type="range"]::-moz-range-thumb:hover {
  background: #3a76d8;
  transform: scale(1.1);
}

/* Toggle Switches */
.toggle-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.toggle-label {
  display: flex;
  align-items: center;
  cursor: pointer;
  font-size: 13px;
  color: #b0b0b0;
  user-select: none;
}

.toggle-label input[type="checkbox"] {
  display: none;
}

.toggle-slider {
  width: 44px;
  height: 24px;
  background-color: #555;
  border-radius: 12px;
  position: relative;
  margin-right: 12px;
  transition: background-color 0.3s ease;
}

.toggle-slider::before {
  content: "";
  position: absolute;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: #e0e0e0;
  top: 2px;
  left: 2px;
  transition: transform 0.3s ease;
}

.toggle-label input[type="checkbox"]:checked + .toggle-slider {
  background-color: #4a86e8;
}

.toggle-label input[type="checkbox"]:checked + .toggle-slider::before {
  transform: translateX(20px);
}

/* Statistics */
.stats-display {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.stat-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background-color: #3a3a3a;
  border-radius: 6px;
}

.stat-label {
  font-size: 13px;
  color: #b0b0b0;
}

.stat-item span:last-child {
  font-weight: 600;
  color: #4a86e8;
  font-size: 14px;
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    flex-direction: column;
  }

  .canvas-panel {
    flex: 1;
    border-right: none;
    border-bottom: 1px solid #444;
  }

  .controls-panel {
    flex: 0 0 auto;
    max-height: 40vh;
  }

  .patterns-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .pattern-btn {
    font-size: 11px;
    padding: 8px 6px;
  }
}

@media (max-width: 480px) {
  .button-group {
    flex-direction: column;
  }

  .patterns-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .controls-panel {
    flex: 0 0 320px;
  }

  .panel-content {
    padding: 15px;
  }
}