Merge pull request 'v1.3.1' (#39) from dev into main

Reviewed-on: #39

css/app.css

@@ -712,55 +712,3 @@ select:focus { border-color: var(--accent); }
   0%, 100% { opacity: 1; }
   50%       { opacity: 0; }
 }
-
-/* ── MOBILE ── */
-@media (max-width: 640px) {
-  /* Reset desktop zoom — mobile browsers handle scaling themselves */
-  html { zoom: 1; }
-
-  /* Nav */
-  nav { padding: 0 16px; }
-
-  /* Dashboard header */
-  .dash-header { padding: 18px 16px 14px; }
-
-  /* Stats bar */
-  .stat-cell { padding: 10px 16px; }
-
-  /* Toolbar — search full-width on first row, filters + button below */
-  .toolbar    { flex-wrap: wrap; padding: 10px 16px; gap: 8px; }
-  .search-wrap { max-width: 100%; }
-  .toolbar-right { margin-left: 0; width: 100%; justify-content: flex-end; }
-
-  /* Instance grid — single column */
-  .instance-grid {
-    grid-template-columns: 1fr;
-    padding: 12px 16px;
-    gap: 8px;
-  }
-
-  /* Detail page */
-  .detail-page { padding: 16px; }
-
-  /* Detail header — stack title block above actions */
-  .detail-header { flex-direction: column; align-items: flex-start; gap: 14px; }
-
-  /* Detail sub — wrap items when they don't fit */
-  .detail-sub { flex-wrap: wrap; row-gap: 4px; }
-
-  /* Detail grid — single column */
-  .detail-grid { grid-template-columns: 1fr; }
-
-  /* Toggle grid — 2 columns instead of 3 */
-  .toggle-grid { grid-template-columns: 1fr 1fr; }
-
-  /* Confirm box — no fixed width on mobile */
-  .confirm-box { width: auto; max-width: calc(100vw - 32px); padding: 18px; }
-
-  /* History timeline — stack timestamp above event */
-  .tl-item  { flex-direction: column; align-items: flex-start; gap: 3px; }
-  .tl-time  { order: -1; }
-
-  /* Toast — stretch across bottom */
-  .toast { right: 16px; left: 16px; bottom: 16px; }
-}