Surface Petrol/Diesel as quick pills in the results filter bar

Add Petrol (e10) and Diesel (b7_standard) pills to the left of the
Filters pill, same row and style, each re-searching on tap via the
existing fuelType watcher. The popover's fuel section becomes
"More fuels" listing only the four long-tail fuels (E5, Prem Diesel,
B10, HVO), derived from the shared FUEL_TYPES source.

Fuel only counts toward the Filters badge when a long-tail fuel is
active; "Clear all" snaps a long-tail fuel back to Petrol but leaves a
pill choice alone. Results-bar only, no API change.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

resources/js/components/PostSearchFilters.vue

@@ -1,12 +1,28 @@
 <template>
     <div ref="popoverRoot">
-        <div class="flex flex-wrap items-center justify-end gap-2 md:gap-2.5 py-2 border-b border-zinc-200">
+        <div class="flex flex-wrap items-center gap-2 md:gap-2.5 py-2 border-b border-zinc-200">
+            <div class="flex items-center gap-2 md:gap-2.5" role="radiogroup" aria-label="Fuel">
+                <button
+                    v-for="fuel in PRIMARY_FUELS"
+                    :key="fuel.value"
+                    :aria-checked="fuelType === fuel.value"
+                    :class="{ 'is-active': fuelType === fuel.value }"
+                    class="pill !rounded-xl"
+                    role="radio"
+                    type="button"
+                    @click="fuelType = fuel.value"
+                >
+                    <iconify-icon v-if="fuel.icon" :icon="fuel.icon" class="text-sm opacity-70"></iconify-icon>
+                    <span class="text-sm font-medium">{{ fuel.label }}</span>
+                </button>
+            </div>
+
             <button
                 :aria-expanded="open"
                 :class="{ 'is-active': activeCount > 0 || open }"
                 aria-controls="post-search-filters-panel"
                 aria-haspopup="dialog"
-                class="pill !rounded-xl"
+                class="pill !rounded-xl ml-auto"
                 type="button"
                 @click="open = !open"
             >
@@ -35,11 +51,11 @@
             aria-label="Filters"
             class="mt-3 rounded-2xl border border-zinc-200 bg-white shadow-sm p-4 space-y-4 max-h-[70vh] overflow-y-auto"
         >
-                <div>
+                <div v-if="SECONDARY_FUELS.length">
-                    <span class="block text-[10px] font-mono uppercase tracking-widest text-zinc-500 mb-2">Fuel</span>
+                    <span class="block text-[10px] font-mono uppercase tracking-widest text-zinc-500 mb-2">More fuels</span>
-                    <div class="grid grid-cols-2 sm:grid-cols-3 gap-2" role="radiogroup" aria-label="Fuel type">
+                    <div class="grid grid-cols-2 sm:grid-cols-3 gap-2" role="radiogroup" aria-label="More fuel types">
                         <button
-                            v-for="fuel in FUEL_TYPES"
+                            v-for="fuel in SECONDARY_FUELS"
                             :key="fuel.value"
                             :aria-checked="fuelType === fuel.value"
                             :class="{ 'is-active': fuelType === fuel.value }"
@@ -152,6 +168,17 @@ const DEFAULTS = Object.freeze({
     sort: 'reliable',
 })
 
+// The two everyday fuels are surfaced as quick pills outside the popover;
+// everything else in the shared FUEL_TYPES source stays under "More fuels".
+const PRIMARY_FUEL_VALUES = Object.freeze(['e10', 'b7_standard'])
+
+const PRIMARY_FUELS = Object.freeze([
+    { value: 'e10', label: 'Petrol', icon: 'lucide:fuel' },
+    { value: 'b7_standard', label: 'Diesel', icon: null },
+])
+
+const SECONDARY_FUELS = FUEL_TYPES.filter((fuel) => !PRIMARY_FUEL_VALUES.includes(fuel.value))
+
 const sortOptions = [
     { label: 'Reliable', value: 'reliable', icon: 'lucide:shield-check' },
     { label: 'Price', value: 'price', icon: 'lucide:pound-sterling' },
@@ -195,8 +222,12 @@ watch([fuelType, radius, sort], () => {
     if (postcode.value.trim() || coords.value) emitSearch()
 })
 
+// Petrol/Diesel are shown as pills, so only a long-tail fuel counts as a
+// "hidden" filter on the Filters badge.
+const isSecondaryFuel = computed(() => !PRIMARY_FUEL_VALUES.includes(fuelType.value))
+
 const hasActive = computed(() => (
-    fuelType.value !== DEFAULTS.fuelType
+    isSecondaryFuel.value
     || radius.value !== DEFAULTS.radius
     || sort.value !== DEFAULTS.sort
     || Boolean(props.brandFilter)
@@ -204,7 +235,7 @@ const hasActive = computed(() => (
 
 const activeCount = computed(() => {
     let count = 0
-    if (fuelType.value !== DEFAULTS.fuelType) count++
+    if (isSecondaryFuel.value) count++
     if (radius.value !== DEFAULTS.radius) count++
     if (sort.value !== DEFAULTS.sort) count++
     if (props.brandFilter) count++
@@ -212,7 +243,8 @@ const activeCount = computed(() => {
 })
 
 function resetFilters() {
-    fuelType.value = DEFAULTS.fuelType
+    // Leave a Petrol/Diesel pill choice alone; only snap a long-tail fuel back.
+    if (isSecondaryFuel.value) fuelType.value = DEFAULTS.fuelType
     radius.value = DEFAULTS.radius
     sort.value = DEFAULTS.sort
     if (props.brandFilter) emit('update:brandFilter', '')