better mobile UX

static/map.js

@@ -131,7 +131,7 @@
     document.getElementById('slider-label').textContent = Math.ceil(maxPrice) + '¢/L';
 
     const fuelLabel = { regular: 'Régulier', super: 'Super', diesel: 'Diesel' }[currentFuel];
-    document.getElementById('legend-title').textContent = `Prix ${fuelLabel.toLowerCase()} (¢/L)`;
+    document.getElementById('legend-title').textContent = `${fuelLabel} (¢/L)`;
     document.getElementById('min-price').textContent    = minPrice.toFixed(1) + '¢';
     document.getElementById('max-price').textContent    = maxPrice.toFixed(1) + '¢';
 
@@ -232,6 +232,29 @@
       showCostco = this.checked;
       rebuildMarkers();
     });
+
+    // ── Mobile filter panel toggle ─────────────────────────
+    var filterToggle  = document.getElementById('filter-toggle');
+    var sliderPanel   = document.getElementById('slider-panel');
+    var filterBackdrop = document.getElementById('filter-backdrop');
+
+    function openFilterPanel() {
+      sliderPanel.classList.add('open');
+      filterToggle.classList.add('hidden');
+      if (filterBackdrop) filterBackdrop.classList.add('visible');
+    }
+    function closeFilterPanel() {
+      sliderPanel.classList.remove('open');
+      filterToggle.classList.remove('hidden');
+      if (filterBackdrop) filterBackdrop.classList.remove('visible');
+    }
+
+    if (filterToggle) {
+      filterToggle.addEventListener('click', openFilterPanel);
+    }
+    if (filterBackdrop) {
+      filterBackdrop.addEventListener('click', closeFilterPanel);
+    }
   }
 
   // ── Initialise ─────────────────────────────────────────────
@@ -279,7 +302,6 @@
     });
 
     loadingEl.style.display = 'none';
-    document.getElementById('map-stats').textContent = allStations.length + ' stations';
 
     rebuildMarkers();
     map.addLayer(clusterGroup);

static/style.css

@@ -94,26 +94,31 @@ html, body { height: 100%; margin: 0; padding: 0; }
   box-shadow: 0 2px 8px rgba(0,0,0,0.15);
 }
 
-/* Legend */
+/* Legend (inline inside slider-panel) */
 #legend {
-  position: absolute; bottom: 20px; right: 20px;
-  padding: 12px 16px;
-  z-index: 1000; font-size: 13px; min-width: 180px;
+  margin-top: 8px;
+  padding-top: 8px;
+  border-top: 1px solid var(--border);
+  font-size: 11px;
+  color: var(--muted-foreground);
 }
-#legend h3 { margin-bottom: 8px; font-size: 14px; }
-.legend-gradient {
-  height: 16px; border-radius: 4px;
-  background: linear-gradient(to right, #16a34a, #65a30d, #ca8a04, #ea580c, #dc2626);
+.legend-header {
   margin-bottom: 4px;
+  font-weight: 500;
+}
+.legend-gradient {
+  height: 8px; border-radius: 3px;
+  background: linear-gradient(to right, #16a34a, #65a30d, #ca8a04, #ea580c, #dc2626);
+  margin-bottom: 2px;
+  opacity: 0.85;
 }
 .legend-labels {
   display: flex; justify-content: space-between;
-  font-size: 11px; color: var(--muted-foreground);
+  font-size: 10px; color: var(--muted-foreground);
 }
-#map-stats { margin-top: 8px; font-size: 11px; color: var(--muted-foreground); }
 
 #last-updated {
-  position: absolute; bottom: 8px; left: 12px;
+  position: absolute; bottom: 24px; right: 8px;
   padding: 5px 10px;
   z-index: 1000; font-size: 11px;
   color: var(--muted-foreground);
@@ -233,3 +238,68 @@ html, body { height: 100%; margin: 0; padding: 0; }
 
 /* ── htmx loading indicator ──────────────────────────── */
 .htmx-request #stats-content { opacity: 0.5; transition: opacity 0.2s; }
+
+/* ── Filter toggle button (mobile only) ─────────────── */
+#filter-toggle {
+  display: none;             /* hidden on desktop */
+  position: absolute;
+  bottom: 16px; left: 12px;
+  z-index: 1001;
+  padding: 8px 14px;
+  font-size: 13px; font-weight: 600;
+  cursor: pointer;
+  align-items: center; gap: 6px;
+  border: none;
+  color: var(--card-foreground);
+}
+#filter-toggle svg { flex-shrink: 0; }
+
+/* ── Mobile layout ──────────────────────────────────── */
+@media (max-width: 768px) {
+  #filter-toggle { display: flex; }
+
+  #slider-panel {
+    position: fixed;
+    top: auto; left: 0; right: 0; bottom: 0;
+    min-width: 0; width: 100%;
+    border-radius: 16px 16px 0 0;
+    max-height: 70vh;
+    overflow-y: auto;
+    padding: 16px 16px 20px;
+    transform: translateY(100%);
+    transition: transform 0.3s ease;
+    z-index: 1100;
+  }
+  #slider-panel.open { transform: translateY(0); }
+
+  /* Drag handle hint at top of the panel */
+  #slider-panel::before {
+    content: '';
+    display: block;
+    width: 36px; height: 4px;
+    background: var(--muted-foreground);
+    border-radius: 2px;
+    margin: 0 auto 12px;
+    opacity: 0.4;
+  }
+
+  /* Semi-transparent backdrop when panel is open */
+  #filter-backdrop {
+    display: none;
+    position: fixed; inset: 0;
+    background: rgba(0,0,0,0.3);
+    z-index: 1099;
+  }
+  #filter-backdrop.visible { display: block; }
+
+  /* Hide the toggle when panel is open */
+  #filter-toggle.hidden { display: none; }
+
+  /* Cluster tooltip: constrain on small screens */
+  .cluster-info-tooltip {
+    white-space: normal;
+    max-width: 70vw;
+    left: auto; right: 0;
+    transform: translateY(-50%);
+  }
+}