/* Controls overlay and button styles */

.controls-overlay {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 8px;
  padding: 15px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.controls {
  display: flex;
  gap: 15px;
  align-items: center;
  margin-bottom: 10px;
}

.control-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.control-group label {
  font-weight: 600;
  color: #495057;
  font-size: 14px;
  white-space: nowrap;
}

input[type="range"] {
  width: 100px;
  height: 6px;
  border-radius: 3px;
  background: #e0e0e0;
  outline: none;
  -webkit-appearance: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #3498db;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #3498db;
  cursor: pointer;
  border: none;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

#zoom-value {
  font-weight: 600;
  color: #495057;
  font-size: 14px;
  min-width: 40px;
}

.btn {
  background: linear-gradient(135deg, #3498db, #2980b9);
  color: white;
  border: none;
  padding: 10px 16px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(52, 152, 219, 0.4);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: linear-gradient(135deg, #27ae60, #229954);
  box-shadow: 0 4px 15px rgba(39, 174, 96, 0.3);
}

.btn-primary:hover {
  box-shadow: 0 6px 20px rgba(39, 174, 96, 0.4);
}