Started with about page and my cv

src/app/layout/topbar/topbar.component.scss

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+.topbar {
+  position: sticky; top: 0; z-index: 100;
+  backdrop-filter: saturate(1.1) blur(8px);
+  background:
+    color-mix(in oklab, var(--app-bg) 80%, transparent);
+  border-bottom: 1px solid rgba(0,0,0,.08);
+
+  .brand {
+    display:flex; align-items:center; gap:.6rem;
+    color: inherit; text-decoration: none;
+    .logo-dot {
+      width: 48px; height: 48px; border-radius: 50%;
+    }
+    .brand-text { font-weight: 600; letter-spacing:.2px; }
+  }
+
+  .nav { display:flex; gap:.25rem; margin-left:.5rem; }
+
+  .spacer { flex: 1; }
+
+  .flag-icon { width: 18px; height: 18px; border-radius: 2px; margin-right:.5rem; }
+
+  .menu-section { padding:.25rem .5rem .5rem; }
+  .menu-title { font-size:.75rem; opacity:.75; padding:.25rem .75rem .5rem; }
+
+  .kbd {
+    margin-left:auto; font-size:.7rem; opacity:.65; border:1px solid currentColor;
+    border-radius:4px; padding:0 .35rem;
+  }
+}
+
+::ng-deep .mat-mdc-menu-item .mdc-list-item__primary-text {
+  display: flex;
+  align-items: center;
+  gap: .5rem;
+}
+
+::ng-deep .mat-mdc-menu-item .kbd {
+  margin-left: auto;
+  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
+  font-size: 11px;
+  line-height: 1.6;
+  padding: 0 .35rem;
+  border: 0px solid currentColor;
+  border-radius: 4px;
+  opacity: .65;
+}
+
+::ng-deep .mat-mdc-menu-item .mat-icon {
+  width: 20px; height: 20px; font-size: 20px;
+}
+
+::ng-deep .mat-mdc-menu-item .flag-icon {
+  width: 20px !important;
+  height: 14px !important;
+  object-fit: cover;
+  border-radius: 2px;
+  margin-right: .5rem;
+  vertical-align: middle;
+}
+
+::ng-deep .mat-mdc-menu-panel {
+  border-radius: 10px !important;
+  border: 1px solid rgba(0,0,0,.14);
+}
+.dark ::ng-deep .mat-mdc-menu-panel {
+  border-color: rgba(255,255,255,.06);
+}
+
+/* Responsive: Collapse navigation to icon if width is smaller than 760px */
+@media (max-width: 760px) {
+  .topbar .nav { display:none; }
+}