feat: enhance map interface with arrivals overlay and nearby stops display

src/app.css

@@ -175,6 +175,93 @@ button:hover {
   margin-bottom: 0.8rem;
 }
 
+.map-wrap {
+  position: relative;
+  margin-bottom: 0.8rem;
+}
+
+.map-wrap .map-panel {
+  margin-bottom: 0;
+}
+
+.map-arrivals-overlay {
+  position: absolute;
+  right: 0.7rem;
+  bottom: 0.7rem;
+  width: min(320px, calc(100% - 1.4rem));
+  padding: 0.62rem 0.72rem;
+  background: rgba(31, 26, 19, 0.84);
+  color: #f8edd5;
+  border: 1px solid rgba(251, 219, 180, 0.35);
+  border-radius: 12px;
+  backdrop-filter: blur(4px);
+  box-shadow: 0 10px 20px rgba(17, 13, 9, 0.25);
+}
+
+.map-arrivals-overlay h3 {
+  font-size: 0.94rem;
+  margin-bottom: 0.2rem;
+}
+
+.map-overlay-stop {
+  margin: 0 0 0.45rem;
+  font-size: 0.78rem;
+  color: #e8cfab;
+}
+
+.map-arrivals-list {
+  margin: 0;
+  padding: 0;
+  list-style: none;
+  display: grid;
+  gap: 0.34rem;
+}
+
+.map-arrivals-list li {
+  display: grid;
+  grid-template-columns: auto auto;
+  justify-content: space-between;
+  gap: 0.15rem 0.6rem;
+  align-items: baseline;
+  font-size: 0.83rem;
+}
+
+.map-arrivals-list li strong {
+  color: #ffd79f;
+}
+
+.map-arrivals-list li small {
+  grid-column: 1 / -1;
+  color: #f1ddbe;
+  font-size: 0.74rem;
+}
+
+.map-overlay-empty {
+  margin: 0;
+  font-size: 0.8rem;
+  color: #ead8bb;
+}
+
+.map-overlay-fallback-list {
+  margin: 0.45rem 0 0;
+  padding: 0;
+  list-style: none;
+  display: grid;
+  gap: 0.3rem;
+}
+
+.map-overlay-fallback-list li {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  gap: 0.5rem;
+  font-size: 0.8rem;
+}
+
+.map-overlay-fallback-list li strong {
+  color: #ffd79f;
+}
+
 .map-hint {
   margin: 0 0 0.8rem;
   color: var(--ink-soft);
@@ -361,6 +448,13 @@ button:hover {
     height: min(50vh, 340px);
   }
 
+  .map-arrivals-overlay {
+    right: 0.5rem;
+    left: 0.5rem;
+    width: auto;
+    bottom: 0.5rem;
+  }
+
   .panel {
     padding: 0.85rem;
   }

src/routes/+page.svelte

@@ -25,6 +25,17 @@
   let nearbyStopMarkers = [];
   let isMapClickPicking = false;
 
+  $: mapArrivals =
+    selectedStop && arrivalsStopCode === selectedStop.code
+      ? services.slice(0, 4).map((service) => ({
+          serviceNo: service?.ServiceNo || "?",
+          next: minutesUntil(service?.NextBus?.EstimatedArrival),
+          following: minutesUntil(service?.NextBus2?.EstimatedArrival)
+        }))
+      : [];
+
+  $: overlayNearbyStops = nearbyStops.slice(0, 3);
+
   function setStatus(text, state = "") {
     statusText = text;
     statusState = state;
@@ -446,7 +457,46 @@
 
     <p class="map-hint">Tip: tap anywhere on the map to check the nearest stop and refresh arrivals around that point.</p>
 
-    <div class="map-panel" bind:this={mapContainer}></div>
+    <div class="map-wrap">
+      <div class="map-panel" bind:this={mapContainer}></div>
+
+      <aside class="map-arrivals-overlay" aria-live="polite">
+        <h3>Arrivals</h3>
+        <p class="map-overlay-stop">
+          {#if selectedStop}
+            {selectedStop.code} - {selectedStop.description}
+          {:else}
+            No stop selected
+          {/if}
+        </p>
+
+        {#if loadingArrivals}
+          <p class="map-overlay-empty">Loading arrivals...</p>
+        {:else if mapArrivals.length > 0}
+          <ul class="map-arrivals-list">
+            {#each mapArrivals as item}
+              <li>
+                <strong>{item.serviceNo}</strong>
+                <span>{item.next}</span>
+                <small>Then {item.following}</small>
+              </li>
+            {/each}
+          </ul>
+        {:else if overlayNearbyStops.length > 0}
+          <p class="map-overlay-empty">Nearby stops</p>
+          <ul class="map-overlay-fallback-list">
+            {#each overlayNearbyStops as stop}
+              <li>
+                <strong>{stop.code}</strong>
+                <span>{formatDistance(stop.distanceMeters)}</span>
+              </li>
+            {/each}
+          </ul>
+        {:else}
+          <p class="map-overlay-empty">Waiting for location to load stops...</p>
+        {/if}
+      </aside>
+    </div>
 
     <div class="stop-meta">
       <div class="meta-item">