body {
    background-color: #212529;
}

canvas {
    height: 150px;
    background-color: #343a40;
    border-radius: 5px;
}

.band-controls {
    border: 1px solid #495057;
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
}

.control-group {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.control-group label {
    flex-basis: 90px; /* Give labels a fixed width */
    flex-shrink: 0;
    text-align: right;
    font-size: 0.9rem;
}

.control-group input[type="range"] {
    flex-grow: 1; /* Slider takes up remaining space */
}

.control-group input[type="text"] {
    flex-basis: 70px; /* Text input has a fixed width */
    flex-shrink: 0;
    text-align: center;
}

.progress, .progress-bar {
    transition: width 0.2s ease-in-out;
}