/* Custom styling for slider to use blue for negative and red for positive */
input[type="range"] {
    -webkit-appearance: none;
    width: 100%;
    height: 8px;
    border-radius: 5px;
    background: linear-gradient(to right, #3498db, white, #e74c3c);
    outline: none;
    margin: 10px 0;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #007bff;
    cursor: pointer;
    border: 1px solid #0056b3;
}

input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #007bff;
    cursor: pointer;
    border: 1px solid #0056b3;
}

/* Style for the slider track in Firefox */
input[type="range"]::-moz-range-track {
    width: 100%;
    height: 8px;
    border-radius: 5px;
    background: linear-gradient(to right, #3498db, white, #e74c3c);
}

/* Color for negative charge display values */
.charge-value.negative {
    color: #3498db;
}

/* Color for positive charge display values */
.charge-value.positive {
    color: #e74c3c;
}