Added excel import

frontend/src/index.css

@@ -622,10 +622,14 @@ textarea {
   order: 4;
 }
 
-.settings-card-transfer {
+.settings-card-bird-import {
   order: 5;
 }
 
+.settings-card-transfer {
+  order: 6;
+}
+
 .settings-card-flock-profile {
   order: 1;
 }
@@ -668,6 +672,21 @@ textarea {
   gap: 1rem;
 }
 
+.import-column-guide {
+  display: grid;
+  gap: 0.35rem;
+  padding: 0.8rem 0.9rem;
+  border-radius: 16px;
+  background: rgba(255, 254, 250, 0.72);
+  color: var(--muted);
+  font-size: 0.92rem;
+}
+
+.import-preview-list {
+  max-height: 320px;
+  overflow: auto;
+}
+
 .settings-danger-card {
   border-color: rgba(203, 58, 53, 0.22);
   background: linear-gradient(180deg, rgba(255, 250, 246, 0.86), rgba(255, 241, 238, 0.72));