feat(ux): implement UX audit recommendations

- Redesign landing page with unified Omnibox search

- Add ComparisonToast for better comparison flow visibility

- Add visual 'Added' state to SchoolCard

- Add info tooltips to educational metrics

- Optimize mobile map view with Bottom Sheet

- Standardize distance display to miles

nextjs-app/components/HomeView.module.css

@@ -419,3 +419,92 @@
     padding: 2rem 1.25rem;
   }
 }
+
+/* Highlighted List Item */
+.highlightedItem .compactItem {
+  border-color: var(--accent-teal, #2d7d7d);
+  box-shadow: 0 0 0 1px var(--accent-teal, #2d7d7d);
+  background: var(--bg-secondary, #f3ede4);
+}
+
+/* Mobile Bottom Sheet */
+.bottomSheetWrapper {
+  display: none;
+}
+
+@media (max-width: 768px) {
+  .bottomSheetWrapper {
+    display: block;
+    position: fixed;
+    bottom: 0;
+    left: 0;
+    width: 100%;
+    z-index: 1000;
+    padding: 1rem;
+    pointer-events: none;
+  }
+
+  .bottomSheet {
+    position: relative;
+    background: var(--bg-card, white);
+    border-radius: 12px;
+    box-shadow: 0 -4px 24px rgba(26, 22, 18, 0.15);
+    pointer-events: auto;
+    animation: slideUpSheet 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
+  }
+
+  .bottomSheet .compactItem {
+    border: none;
+    box-shadow: none;
+    background: transparent;
+    padding: 1rem;
+  }
+
+  .bottomSheet .compactItem:hover {
+    box-shadow: none;
+  }
+
+  .closeSheetBtn {
+    position: absolute;
+    top: -12px;
+    right: -12px;
+    width: 30px;
+    height: 30px;
+    background: var(--bg-card, white);
+    border: 1px solid var(--border-color, #e5dfd5);
+    border-radius: 50%;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    font-size: 1.25rem;
+    color: var(--text-secondary, #5c564d);
+    cursor: pointer;
+    box-shadow: 0 2px 8px rgba(26, 22, 18, 0.1);
+    z-index: 10;
+  }
+
+  @keyframes slideUpSheet {
+    from {
+      transform: translateY(120%);
+    }
+    to {
+      transform: translateY(0);
+    }
+  }
+
+  /* When map view on mobile, expand map and hide list */
+  .mapViewContainer {
+    grid-template-columns: 1fr;
+    grid-template-rows: 1fr;
+    height: calc(100vh - 280px);
+    min-height: 400px;
+  }
+
+  .mapContainer {
+    height: 100%;
+  }
+
+  .compactList {
+    display: none;
+  }
+}