/* ─── Responsive ─────────────────────────────────────────────── */
@media (max-width: 720px) {
  .container { padding: 24px 14px 50px; }
  header { flex-direction: column; align-items: flex-start; gap: 12px; padding: 12px 14px; }
  .header-controls { width: 100%; justify-content: space-between; }
  .status-bar { gap: 12px; flex-wrap: wrap; }
  .hero h1 { font-size: 30px; }
  .logo { font-size: 18px; }
  .dropzone { padding: 44px 20px 36px; }
  .dz-dim-l, .dz-dim-r { display: none; }   /* dimension lines clutter mobile */
  .drop-title { font-size: 18px; }
  .cap-header { flex-direction: column; align-items: flex-start; gap: 6px; }
  .cap-header h2 { font-size: 20px; }
  .file-row {
    grid-template-columns: 38px 1fr;
    grid-template-areas:
      "icon info"
      "select select"
      "status actions"
      "bar bar"
      "err err";
    gap: 10px;
    padding: 12px 14px;
  }
  .file-icon          { grid-area: icon; }
  .file-info          { grid-area: info; }
  .format-select-wrap { grid-area: select; justify-content: space-between; }
  .status-cell        { grid-area: status; text-align: left; }
  .file-actions       { grid-area: actions; justify-self: end; }
  .row-bar            { grid-area: bar; }
  .file-err           { grid-area: err; }
  .batch-bar { flex-direction: column; gap: 10px; align-items: stretch; }
  footer { flex-direction: column; gap: 10px; align-items: flex-start; }
}