.header-media-field{margin-top:1rem;padding:1rem;background:#fafafa;border-radius:8px;border:1px dashed #bdbdbd}.header-media-upload{display:flex;flex-wrap:wrap;align-items:center;gap:0.75rem;margin-top:0.5rem}.header-media-upload input[type="file"]{flex:1 1 220px}.header-media-remove{display:inline-flex;align-items:center}.header-media-status{margin:0.5rem 0 0;font-size:0.85rem}.header-media-status .material-icons.tiny{vertical-align:middle;margin-right:0.25rem}.header-media-error{margin:0.5rem 0 0;font-size:0.85rem}.header-preview-image{display:block;width:100%;max-width:280px;max-height:160px;object-fit:cover;border-radius:6px;margin-bottom:0.35rem}.header-preview-filename{display:block;font-size:0.75rem;color:#666;word-break:break-all}.preview-chat .bubble-header .material-icons{font-size:2rem;vertical-align:middle;margin-right:0.25rem}.media-sample-name{display:block;margin-top:0.35rem;font-size:0.7rem;color:#666;word-break:break-all}