/* Ebbinghaus illusion styles */
#eb-canvas { display: block; margin: 0 auto; }
.adjustment-controls {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    margin-top: var(--space-lg);
    justify-content: center;
}
.length-slider {
    width: 300px;
    cursor: pointer;
    accent-color: var(--color-primary);
}