1 files changed, 89 insertions, 0 deletions
diff --git a/src/frontend/app/components/StopAlert.css b/src/frontend/app/components/StopAlert.css
new file mode 100644
index 0000000..0032d09
--- /dev/null
+++ b/src/frontend/app/components/StopAlert.css
@@ -0,0 +1,89 @@
+.stop-alert {
+  display: flex;
+  align-items: flex-start;
+  gap: 0.75rem;
+  padding: 0.75rem;
+  border-radius: 0.5rem;
+  margin: 0.75rem 0;
+  border: 1px solid;
+}
+
+.stop-alert-info {
+  background-color: rgba(59, 130, 246, 0.1);
+  border-color: rgba(59, 130, 246, 0.3);
+  color: #1e40af;
+}
+
+.stop-alert-error {
+  background-color: rgba(239, 68, 68, 0.1);
+  border-color: rgba(239, 68, 68, 0.3);
+  color: #991b1b;
+}
+
+.stop-alert-compact {
+  padding: 0.5rem;
+  margin: 0.5rem 0;
+  font-size: 0.875rem;
+}
+
+.stop-alert-icon {
+  flex-shrink: 0;
+  width: 1.25rem;
+  height: 1.25rem;
+}
+
+.stop-alert-compact .stop-alert-icon {
+  width: 1rem;
+  height: 1rem;
+}
+
+.stop-alert-content {
+  flex: 1;
+  display: flex;
+  flex-direction: column;
+  gap: 0.25rem;
+}
+
+.stop-alert-title {
+  font-weight: 600;
+  font-size: 0.95rem;
+}
+
+.stop-alert-compact .stop-alert-title {
+  font-size: 0.85rem;
+}
+
+.stop-alert-message {
+  font-size: 0.9rem;
+  opacity: 0.9;
+}
+
+.stop-alert-compact .stop-alert-message {
+  font-size: 0.8rem;
+}
+
+.stop-alert-alternate-codes {
+  font-size: 0.85rem;
+  margin-top: 0.25rem;
+  font-style: italic;
+  opacity: 0.8;
+}
+
+.stop-alert-compact .stop-alert-alternate-codes {
+  font-size: 0.75rem;
+}
+
+/* Dark mode support */
+@media (prefers-color-scheme: dark) {
+  .stop-alert-info {
+    background-color: rgba(59, 130, 246, 0.15);
+    border-color: rgba(59, 130, 246, 0.4);
+    color: #93c5fd;
+  }
+
+  .stop-alert-error {
+    background-color: rgba(239, 68, 68, 0.15);
+    border-color: rgba(239, 68, 68, 0.4);
+    color: #fca5a5;
+  }
+}