.range-slider {
    position: relative;
    width: 100%;
}

.range-slider input[type="range"] {
    width: 100%;
    -webkit-appearance: none;
    appearance: none;
    height: 5px;
    background: #ddd;
    outline: none;
    border-radius: 5px;
    cursor: pointer;
}

.range-slider input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 15px;
    height: 15px;
    background: #0073aa;
    border-radius: 50%;
    cursor: pointer;
}

.range-slider .range-values {
    margin-top: 10px;
    font-size: 14px;
    text-align: center;
    color: #555;
}

.range-slider .clarity-labels,
.range-slider .color-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 5px;
    font-size: 12px;
    color: #777;
}

.shape-options button.active {
    background-color: #0073aa;
    color: white;
}