fix: bouton Clusters bottom-20 (au-dessus AnimationPlayer) + badge géo en blanc

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/components/FlowMap.tsx

@@ -350,7 +350,7 @@ export function FlowMap({ arcs, focusCity, onCityClick }: FlowMapProps) {
       {/* Bouton cluster / villes */}
       <button
         onClick={() => setClustered(c => !c)}
-        className={`absolute bottom-4 left-4 z-[600] px-3 py-1.5 rounded-lg text-xs font-medium border transition-all duration-200 ${
+        className={`absolute bottom-20 left-4 z-[600] px-3 py-1.5 rounded-lg text-xs font-medium border transition-all duration-200 ${
           clustered
             ? 'bg-[#d4a843] text-[#0a0b0f] border-[#d4a843] shadow-[0_0_10px_rgba(212,168,67,0.35)]'
             : 'bg-[#0a0b0f]/90 text-[#6b7280] border-[#2e2f3a] hover:text-[#d4a843] hover:border-[#d4a843]'

src/components/PeriodSelector.tsx

@@ -126,7 +126,7 @@ export function PeriodSelector({ value, onChange, animationActive, onAnimate, vi
         {viewMode === 'flow' ? '⊙ Heatmap' : '◉ Flux'}
       </button>
       {geoPercent != null && (
-        <span className="text-[10px] font-mono text-[#4b5563] px-1 shrink-0">
+        <span className="text-[10px] font-mono text-white px-1 shrink-0">
           {geoPercent}% Tx géoloc.
         </span>
       )}