.upload-zone{border:2px dashed #444;border-radius:10px;padding:30px 20px;text-align:center;background:#2b2b2b;cursor:pointer;transition:.3s;margin-bottom:12px}.upload-zone:hover,.upload-zone.drag-over{border-color:var(--accent-color);background:#333}.upload-zone.has-file{border-color:#28a745;border-style:solid}.upload-icon{font-size:28px;margin-bottom:8px}.upload-text{font-size:13px;color:#aaa;margin:0}.remove-model{position:absolute;top:10px;right:14px;cursor:pointer;color:#ff5c5c;font-weight:700}.radio-group{display:flex;gap:8px;margin-bottom:12px;flex-wrap:wrap}.radio-group input{display:none}.radio-group label{background:var(--input-bg);padding:6px 12px;border-radius:6px;cursor:pointer;border:1px solid var(--input-border);font-size:13px}.radio-group input:checked+label{background:var(--accent-color);border-color:var(--accent-color);color:#fff}.disabled-label{opacity:.2;cursor:not-allowed!important}