Polish export and system mobile layout

frontend/src/styles/app.css

@@ -1493,6 +1493,12 @@ button.entity-card {
   text-align: left;
 }
 
+.export-history-controls input,
+.export-history-controls select {
+  width: 100%;
+  min-width: 0;
+}
+
 .handoff-summary-card {
   display: grid;
   gap: 0.72rem;
@@ -1575,6 +1581,7 @@ button.entity-card {
   color: var(--muted);
   font-size: 0.84rem;
   line-height: 1.36;
+  overflow-wrap: anywhere;
 }
 
 .handoff-action-card button {
@@ -1671,6 +1678,95 @@ button.entity-card {
   overflow-wrap: anywhere;
 }
 
+.system-provider-list {
+  display: grid;
+  gap: 0.72rem;
+  padding: 0;
+  list-style: none;
+}
+
+.system-provider-card {
+  display: grid;
+  min-width: 0;
+  gap: 0.62rem;
+  border: 1px solid var(--line);
+  border-radius: 8px;
+  padding: 0.85rem;
+  background: var(--panel-soft);
+}
+
+.system-provider-card div {
+  min-width: 0;
+  overflow-wrap: anywhere;
+}
+
+.system-provider-header {
+  display: grid;
+  grid-template-columns: minmax(0, 1fr) auto;
+  gap: 0.65rem;
+  align-items: start;
+}
+
+.system-provider-header strong,
+.system-provider-header span {
+  display: block;
+}
+
+.system-provider-header span:not(.status-badge) {
+  margin-top: 0.16rem;
+  color: var(--muted);
+  font-size: 0.82rem;
+}
+
+.system-provider-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(7.5rem, 1fr));
+  gap: 0.5rem;
+}
+
+.system-provider-grid > div {
+  border: 1px solid var(--line);
+  border-radius: 7px;
+  padding: 0.55rem;
+  background: #ffffff;
+}
+
+.system-provider-grid span {
+  display: block;
+  color: var(--muted);
+  font-size: 0.68rem;
+  font-weight: 800;
+  letter-spacing: 0.05em;
+  text-transform: uppercase;
+}
+
+.system-provider-grid strong {
+  display: block;
+  margin-top: 0.18rem;
+  font-size: 0.88rem;
+  line-height: 1.25;
+  overflow-wrap: anywhere;
+}
+
+.provider-layer-list {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 0.35rem;
+}
+
+.provider-layer-chip {
+  display: inline-flex;
+  min-height: 1.45rem;
+  align-items: center;
+  border: 1px solid rgba(15, 118, 110, 0.2);
+  border-radius: 999px;
+  padding: 0.16rem 0.5rem;
+  background: var(--accent-soft);
+  color: var(--accent-strong);
+  font-size: 0.74rem;
+  font-weight: 800;
+}
+
 .export-preview-panel .job-result {
   max-height: 38rem;
 }
@@ -2114,6 +2210,22 @@ button.entity-card {
     min-width: 36rem;
   }
 
+  .export-action-grid,
+  .handoff-action-grid,
+  .system-provider-grid {
+    grid-template-columns: repeat(auto-fit, minmax(7.5rem, 1fr));
+  }
+
+  .handoff-action-card,
+  .system-provider-card {
+    padding: 0.68rem;
+  }
+
+  .system-provider-header,
+  .export-card-header {
+    grid-template-columns: minmax(0, 1fr);
+  }
+
   .dataset-action-button,
   .map-empty-action-grid button {
     min-height: 3rem;