add api headermenu and crud management

assets/css/components/modal.css

@@ -0,0 +1,45 @@
+/**
+ * CMS Component: Modals
+ * Standardizes modal spacing and appearance
+ */
+
+.modal-content {
+    border: none;
+    border-radius: var(--border-radius-lg);
+    box-shadow: var(--shadow-lg);
+}
+
+.modal-header {
+    border-bottom: 1px solid var(--border-color);
+    padding: var(--spacing-4);
+    background-color: #fff;
+    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
+}
+
+.modal-title {
+    font-weight: var(--font-weight-bold);
+    color: var(--text-main);
+    font-size: 1.15rem;
+}
+
+.modal-body {
+    padding: var(--spacing-4);
+}
+
+.modal-footer {
+    border-top: 1px solid var(--border-color);
+    padding: var(--spacing-3) var(--spacing-4);
+    gap: var(--spacing-2);
+}
+
+/* Modal sizing standards */
+.modal-dialog-centered {
+    display: flex;
+    align-items: center;
+    min-height: calc(100% - var(--bs-modal-margin) * 2);
+}
+
+/* Fix for backdrop issue reported in previous conversations */
+.modal-backdrop.show {
+    opacity: 0.5;
+}