.upload-dropzone{border:2px dashed var(--border-color);border-radius:var(--radius-md);padding:1.5rem 1rem;text-align:center;background:var(--bg-subtle);cursor:pointer;transition:all .2s;margin-bottom:1rem}.upload-dropzone:hover,.upload-dropzone.dragover{border-color:var(--primary);background:var(--primary-light)}.dropzone-icon{font-size:2rem;color:var(--primary);margin-bottom:.5rem}.dropzone-text{font-size:.85rem;font-weight:600;color:var(--text-main)}.dropzone-hint{font-size:.75rem;color:var(--text-muted);margin-top:.25rem}.filter-slider-group{display:flex;flex-direction:column;gap:.65rem;margin-bottom:1rem}.slider-control{display:flex;flex-direction:column;gap:.25rem}.slider-label{display:flex;justify-content:space-between;font-size:.8rem;font-weight:500}.slider-control input[type="range"]{width:100%;accent-color:var(--primary)}.dither-toggle{display:flex;align-items:center;justify-content:space-between;font-size:.85rem;font-weight:500;padding:.5rem 0}