/* QR Code Generator specific styles */
.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}

@media (max-width: 768px) {
  .settings-grid {
    grid-template-columns: 1fr;
  }
}

.range-input {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: #e1e8ed;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.range-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, #667eea, #764ba2);
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(102, 126, 234, 0.3);
}

.range-input::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, #667eea, #764ba2);
  cursor: pointer;
  border: none;
  box-shadow: 0 2px 6px rgba(102, 126, 234, 0.3);
}

.color-input {
  width: 100%;
  height: 40px;
  border: 2px solid #e1e8ed;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.color-input:hover {
  border-color: #667eea;
  transform: scale(1.02);
}

.qr-preview {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 300px;
  background: #f8f9fa;
  border-radius: 8px;
  border: 2px dashed #e1e8ed;
}

.qr-container {
  display: flex;
  justify-content: center;
  align-items: center;
}

.qr-container canvas {
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
  transition: transform 0.2s ease;
}

.qr-container canvas:hover {
  transform: scale(1.02);
}

.placeholder {
  text-align: center;
  color: #6c757d;
}

.placeholder-icon {
  font-size: 48px;
  margin-bottom: 12px;
  opacity: 0.5;
}

.placeholder p {
  font-size: 14px;
  opacity: 0.7;
}