On a phone, a wide table shows each row as a labelled card (#41)

ddiff --git a/public/css/exchange.css b/public/css/exchange.css
iindex 264f5fb..4f36b45 100644
---- a/public/css/exchange.css
++++ b/public/css/exchange.css
@@@ -144,3 +144,18 @@ html[data-ov-motion=reduced] .ex-motif-arrows path, html[data-ov-motion=reduced]
  /* A theme's preview palette: up to six small swatches, plain <i> elements; the session restyles them. */
  .ex-palette { display: inline-flex; flex-wrap: wrap; gap: 4px; }
  .ex-palette i { display: inline-block; width: 16px; height: 16px; border-radius: 5px; border: 1px solid var(--border, #1f2d47); }
++
++/* Tables on a phone (phone sweep, 2026-11-01): a table of three columns or more shows each row as a card, the first
++   cell its title and every other cell named by its column (html.js gives each cell its data-label). Narrower tables
++   stay tables. Nothing is left out and nothing scrolls sideways. */
++@media (max-width: 640px) {
++    .table-wrap:has(> table thead th:nth-child(3)) { overflow: visible; }
++    .table-wrap > table:has(thead th:nth-child(3)) { display: block; }
++    .table-wrap > table:has(thead th:nth-child(3)) thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
++    .table-wrap > table:has(thead th:nth-child(3)) tbody { display: grid; gap: 10px; }
++    .table-wrap > table:has(thead th:nth-child(3)) tr { display: grid; gap: 8px; padding: 12px 14px; border: 1px solid var(--border, #1f2d47); border-radius: 14px; background: var(--bg-card, var(--bg-secondary, #101828)); }
++    .table-wrap > table:has(thead th:nth-child(3)) td { display: block; min-width: 0; padding: 0; border: 0; overflow-wrap: anywhere; }
++    .table-wrap > table:has(thead th:nth-child(3)) td:first-child { font-weight: 700; color: var(--text-primary, #e6edf7); }
++    .table-wrap > table:has(thead th:nth-child(3)) td[data-label]:not(:first-child)::before { content: attr(data-label); display: block; margin-bottom: 2px; font-size: 11px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; color: var(--text-muted, #7386a3); }
++    .table-wrap > table:has(thead th:nth-child(3)) td:empty { display: none; }
++}
ddiff --git a/server/render/html.js b/server/render/html.js
iindex 2769b87..f216e36 100644
---- a/server/render/html.js
++++ b/server/render/html.js
@@@ -23,7 +23,7 @@ const time = (iso) => (iso ? html`<time datetime="${iso}">${String(iso).replace(
  
  function table(headers, rows, { cls = '', empty = 'Nothing here yet.' } = {}) {
      if (!rows.length) return html`<p class="muted">${empty}</p>`;
--    return html`<div class="table-wrap"><table class="${cls}"><thead><tr>${headers.map((h) => html`<th scope="col">${h}</th>`)}</tr></thead><tbody>${rows.map((r) => html`<tr>${r.map((c) => html`<td>${c}</td>`)}</tr>`)}</tbody></table></div>`;
++    return html`<div class="table-wrap"><table class="${cls}"><thead><tr>${headers.map((h) => html`<th scope="col">${h}</th>`)}</tr></thead><tbody>${rows.map((r) => html`<tr>${r.map((c, i) => (typeof headers[i] === 'string' && headers[i] ? html`<td data-label="${headers[i]}">${c}</td>` : html`<td>${c}</td>`))}</tr>`)}</tbody></table></div>`;
  }
  
  const notice = (text, kind = 'info') => html`<div class="notice ${kind}" role="status">${text}</div>`;