feat(directions): bigger map + app-like layout and richer route details

- Map is now the hero: h-[38vh] mobile / 400px desktop (was 256), with a metric
  Leaflet scale control.
- New layout: flex column with header/modes/From/map pinned, the details as the
  ONLY scroll region, and Start/Stop pinned at the bottom so it's always
  reachable. Previously the dialog was a single overflow-hidden box, so once the
  map grew everything below the fold (Start, steps) was unreachable.
- Summary rebuilt as stat tiles (distance / time / arrive) plus a detail line:
  step count, honest 'uses driving roads'/'driving estimate' notes, and the
  average speed the engine assumed ('21 km/h avg'; foot keeps the skate cruise
  estimate). Steps header shows the count; step list scrolls taller (max-h-72).
- Wider dialog on desktop (sm:max-w-xl).

Verified in-app: tiles + 9/8/5/5 steps per mode, follow banner still tracks
movement, offline chip still appears, map 371px -> 321px with the new layout.

AGENTS.md

@@ -221,7 +221,17 @@ session with **no other memory of this project**. So:
     transient watch error (timeout/temporarily unavailable) must **not** tear down
     the watcher — only `denied` does (headless CDP testing made this obvious:
     moving the mocked position emits a transient error that recovered).
-    Still deliberately absent: voice guidance and re-routing if you leave the route. **Transit** mode uses **Transitous** (`api.transitous.org`,
+    Still deliberately absent: voice guidance and re-routing if you leave the route.
+  - **Dialog layout (2026-09-27):** app-like flex column —
+    `flex max-h-[calc(100dvh-2rem)] flex-col overflow-hidden`: header, mode row,
+    "From" row and the **map** are `shrink-0` (map `h-[38vh] sm:h-[400px]`), the
+    middle (stat tiles + steps) is the only scroll region (`min-h-0 flex-1
+    overflow-y-auto`), and the **Start/Stop bar is pinned** at the bottom so it's
+    always reachable. ⚠️ Don't go back to a single `overflow-hidden` content box:
+    that made everything below the fold **unreachable** once the map grew. The
+    summary is three `StatTile`s (distance / time / arrive) + a detail line
+    (steps, driving-roads note, avg speed) and the map carries a metric
+    `L.control.scale`. **Transit** mode uses **Transitous** (`api.transitous.org`,
   MOTIS 2, open CORS) — note origin/destination go to that service, unlike road
   modes. **No external map-app handoff anywhere** (product decision) and no
   scooter/moped profile. **Speed (2026-09-27):** `RouteDialog` seeds origin from

release-notes.txt

@@ -1,6 +1,9 @@
 v1.5.3
 
 🧭 Real navigation, not just a route preview
+- A much bigger map (with a metric scale bar), and the plan now reads at a
+  glance: distance, time and arrival time as clear stats, plus step count and
+  the average speed the route assumes. Start/Stop stays pinned at the bottom.
 - Travel modes finally give genuinely different answers: walking 13 min, biking
   5, driving 2 on the same trip. Before, every mode showed the same number.
 - Route steps — the actual turns and street names. Tap a step to jump to it on

src/components/RouteDialog.tsx

@@ -94,6 +94,27 @@ interface RouteDialogProps {
  * maps app is opened — the route comes from the keyless public OSRM server and
  * is drawn here. See src/lib/routing.ts for the honest scope notes.
  */
+/** Big number + label tile used in the route summary. */
+function StatTile({ label, value, sub }: { label: string; value: string; sub?: string }) {
+  return (
+    <div className="rounded-xl border border-white/8 bg-white/[0.03] px-2 py-2.5 text-center">
+      <p className="text-lg font-black leading-tight tabular-nums text-white">{value}</p>
+      <p className="mt-0.5 text-[10px] font-bold uppercase tracking-widest text-muted-foreground">
+        {label}
+      </p>
+      {sub && <p className="mt-0.5 text-[10px] leading-tight text-muted-foreground/70">{sub}</p>}
+    </div>
+  );
+}
+
+/** The average speed the routing engine assumed for this mode, e.g. "21 km/h avg". */
+function speedLabel(distanceM: number, durationS: number): string | undefined {
+  if (!(distanceM > 0) || !(durationS > 0)) return undefined;
+  const kmh = distanceM / 1000 / (durationS / 3600);
+  if (!Number.isFinite(kmh) || kmh <= 0) return undefined;
+  return `${kmh < 10 ? kmh.toFixed(1) : Math.round(kmh)} km/h avg`;
+}
+
 /** Local clock time you'd arrive if you set off now. */
 function etaClock(durationS: number): string {
   return new Date(Date.now() + durationS * 1000).toLocaleTimeString([], {
@@ -322,6 +343,9 @@ export function RouteDialog({
       className: 'skatespots-dark-tiles',
     }).addTo(map);
 
+    // Metric scale bar — genuinely useful on a route map (how long is that line?).
+    L.control.scale({ imperial: false, position: 'topleft' }).addTo(map);
+
     // Destination marker
     const destIcon = L.divIcon({
       className: 'route-dest-icon',
@@ -489,8 +513,10 @@ export function RouteDialog({
 
   return (
     <Dialog open={open} onOpenChange={onOpenChange}>
-      <DialogContent className="max-w-lg p-0 gap-0 overflow-hidden">
-        <DialogHeader className="p-4 pb-3">
+      {/* App-like shell: header + modes + map are pinned, the details in the
+          middle scroll, and the Start/Stop bar stays reachable at the bottom. */}
+      <DialogContent className="flex max-h-[calc(100dvh-2rem)] w-[calc(100%-2rem)] max-w-lg flex-col gap-0 overflow-hidden p-0 sm:max-w-xl">
+        <DialogHeader className="shrink-0 p-4 pb-3">
           <DialogTitle className="flex items-center gap-2 text-lg">
             <Navigation className="h-5 w-5 text-[#ccff00]" />
             Route to {destinationLabel}
@@ -503,7 +529,7 @@ export function RouteDialog({
         </DialogHeader>
 
         {/* Mode toggle */}
-        <div className="px-4 pb-3 flex gap-1.5">
+        <div className="flex shrink-0 gap-1.5 px-4 pb-3">
           {TRAVEL_MODES.map((m) => (
             <button
               key={m.mode}
@@ -524,7 +550,7 @@ export function RouteDialog({
         </div>
 
         {/* Start point — default is where you are; you can pick another on the map */}
-        <div className="flex flex-wrap items-center gap-1.5 px-4 pb-3">
+        <div className="flex shrink-0 flex-wrap items-center gap-1.5 px-4 pb-3">
           <span className="text-[10px] font-black uppercase tracking-widest text-muted-foreground">
             From
           </span>
@@ -562,7 +588,7 @@ export function RouteDialog({
             `.leaflet-container { height: 100% }` override beats a `h-64` on the
             map element itself, and against a height-less parent that resolved to
             0 — a fully invisible map with no route line. */}
-        <div className="relative h-64 sm:h-80">
+        <div className="relative h-[38vh] min-h-[220px] shrink-0 sm:h-[400px]">
           <div
             ref={setMapDiv}
             className="h-full w-full bg-muted"
@@ -659,6 +685,9 @@ export function RouteDialog({
           )}
         </div>
 
+        {/* Scrollable details */}
+        <div className="min-h-0 flex-1 overflow-y-auto">
+
         {/* Summary bar */}
         <div className="p-4 border-t bg-muted/30 min-h-[64px] flex items-center">
           {error ? (
@@ -701,31 +730,35 @@ export function RouteDialog({
               <p className="text-[10px] text-muted-foreground/70">{TRANSIT_ATTRIBUTION}</p>
             </div>
           ) : route ? (
-            <div className="flex items-center justify-between w-full">
-              <div className="flex items-center gap-3">
-                <div className="text-2xl leading-none">
-                  {TRAVEL_MODES.find((m) => m.mode === mode)?.emoji}
-                </div>
-                <div>
-                  <div className="text-xl font-black tabular-nums">
-                    {formatDistance(route.distanceM / 1000)}
-                  </div>
-                  <div className="text-xs text-muted-foreground">
-                    {formatDuration(route.durationS)}
-                    <span className="ml-1">· arrive ~{etaClock(route.durationS)}</span>
-                    {TRAVEL_MODES.find((m) => m.mode === mode)?.approximate && (
-                      <span className="ml-1">· uses driving roads</span>
-                    )}
-                    {route.approximate && <span className="ml-1">· driving estimate</span>}
-                    {mode === 'foot' && (
-                      <span className="ml-1">· {skateTime(route.distanceM / 1000)} on a board</span>
-                    )}
-                  </div>
-                </div>
+            <div className="w-full space-y-2">
+              <div className="grid grid-cols-3 gap-2">
+                <StatTile label="Distance" value={formatDistance(route.distanceM / 1000)} />
+                <StatTile
+                  label="Time"
+                  value={formatDuration(route.durationS)}
+                  sub={
+                    mode === 'foot'
+                      ? `${skateTime(route.distanceM / 1000)} on a board`
+                      : speedLabel(route.distanceM, route.durationS)
+                  }
+                />
+                <StatTile label="Arrive" value={etaClock(route.durationS)} />
               </div>
-              {routing && (
-                <Loader2 className="h-4 w-4 animate-spin text-muted-foreground" />
-              )}
+              <p className="flex flex-wrap items-center gap-x-1.5 text-[10px] text-muted-foreground">
+                <span className="text-base leading-none">
+                  {TRAVEL_MODES.find((m) => m.mode === mode)?.emoji}
+                </span>
+                <span>
+                  {route.steps && route.steps.length > 1
+                    ? `${route.steps.length} steps`
+                    : 'direct'}
+                </span>
+                {TRAVEL_MODES.find((m) => m.mode === mode)?.approximate && (
+                  <span>· uses driving roads</span>
+                )}
+                {route.approximate && <span>· driving estimate</span>}
+                {routing && <span>· updating…</span>}
+              </p>
             </div>
           ) : (
             <div className="text-sm text-muted-foreground">
@@ -734,49 +767,21 @@ export function RouteDialog({
           )}
         </div>
 
-        {/* Follow mode: explicit, and honest that there's no voice guidance. */}
-        {route && !route.transit && (
-          <div className="flex items-center gap-3 border-t bg-muted/30 px-4 py-3">
-            {following ? (
-              <Button
-                size="sm"
-                variant="outline"
-                onClick={stopFollowing}
-                className="gap-2 border-[#ff0040]/50 text-[#ff0040] hover:bg-[#ff0040]/10"
-              >
-                <Square className="h-3.5 w-3.5" />
-                Stop
-              </Button>
-            ) : (
-              <Button
-                size="sm"
-                onClick={startFollowing}
-                className="gap-2 bg-[#ccff00] font-bold text-black hover:bg-[#ccff00]/90"
-              >
-                <Play className="h-3.5 w-3.5" />
-                Start
-              </Button>
-            )}
-            <p className="min-w-0 flex-1 text-[10px] leading-snug text-muted-foreground">
-              {following
-                ? 'Following your position and the next turn. No voice guidance.'
-                : 'Follows your position and shows the next turn as you roll.'}
-            </p>
-          </div>
-        )}
-
         {/* Turn-by-turn orientation — a static list. Honestly NOT live navigation. */}
         {mode !== 'transit' && route?.steps && route.steps.length > 1 && (
           <div className="border-t bg-muted/20">
             <div className="flex flex-wrap items-baseline justify-between gap-x-2 px-4 pt-3">
-              <p className="text-[10px] font-black uppercase tracking-widest text-muted-foreground">
+              <p className="flex items-center gap-2 text-[10px] font-black uppercase tracking-widest text-muted-foreground">
                 Route steps
+                <span className="rounded-full bg-white/10 px-1.5 py-0.5 text-[9px] tabular-nums">
+                  {route.steps.length}
+                </span>
               </p>
               {mode === 'foot' && (
                 <p className="text-[10px] text-muted-foreground/70">walking route — quicker on a board</p>
               )}
             </div>
-            <ol className="max-h-56 space-y-1.5 overflow-y-auto px-4 pb-2 pt-1.5">
+            <ol className="max-h-72 space-y-1.5 overflow-y-auto px-4 pb-2 pt-1.5">
               {route.steps.map((s, i) => (
                 <li key={`${i}-${s.instruction}`}>
                   <button
@@ -812,6 +817,40 @@ export function RouteDialog({
             </p>
           </div>
         )}
+
+        </div>{/* /scrollable details */}
+
+        {/* Follow mode: explicit, and honest that there's no voice guidance. */}
+        {route && !route.transit && (
+          <div className="flex items-center gap-3 border-t bg-muted/30 px-4 py-3">
+            {following ? (
+              <Button
+                size="sm"
+                variant="outline"
+                onClick={stopFollowing}
+                className="gap-2 border-[#ff0040]/50 text-[#ff0040] hover:bg-[#ff0040]/10"
+              >
+                <Square className="h-3.5 w-3.5" />
+                Stop
+              </Button>
+            ) : (
+              <Button
+                size="sm"
+                onClick={startFollowing}
+                className="gap-2 bg-[#ccff00] font-bold text-black hover:bg-[#ccff00]/90"
+              >
+                <Play className="h-3.5 w-3.5" />
+                Start
+              </Button>
+            )}
+            <p className="min-w-0 flex-1 text-[10px] leading-snug text-muted-foreground">
+              {following
+                ? 'Following your position and the next turn. No voice guidance.'
+                : 'Follows your position and shows the next turn as you roll.'}
+            </p>
+          </div>
+        )}
+
       </DialogContent>
     </Dialog>
   );