Phase 4: Mana Flow effects

src/components/game/GameContext.tsx

@@ -150,8 +150,15 @@ interface GameContextValue {
   // Effective regen calculations
   effectiveRegenWithSpecials: number;
   manaCascadeBonus: number;
+  manaWaterfallBonus: number;
   effectiveRegen: number;
   
+  // Has special flags
+  hasManaWaterfall: boolean;
+  hasFlowSurge: boolean;
+  hasManaOverflow: boolean;
+  hasEternalFlow: boolean;
+  
   // DPS calculation
   dps: number;
   
@@ -330,7 +337,17 @@ export function GameProvider({ children }: { children: ReactNode }) {
     ? Math.floor(maxMana / 100) * 0.1
     : 0;
   
-  const effectiveRegen = (effectiveRegenWithSpecials + manaCascadeBonus) * meditationMultiplier;
+  const manaWaterfallBonus = hasSpecial(upgradeEffects, SPECIAL_EFFECTS.MANA_WATERFALL)
+    ? Math.floor(maxMana / 100) * 0.25
+    : 0;
+  
+  const effectiveRegen = (effectiveRegenWithSpecials + manaCascadeBonus + manaWaterfallBonus) * meditationMultiplier;
+  
+  // Has special flags for UI
+  const hasManaWaterfall = hasSpecial(upgradeEffects, SPECIAL_EFFECTS.MANA_WATERFALL);
+  const hasFlowSurge = hasSpecial(upgradeEffects, SPECIAL_EFFECTS.FLOW_SURGE);
+  const hasManaOverflow = hasSpecial(upgradeEffects, SPECIAL_EFFECTS.MANA_OVERFLOW);
+  const hasEternalFlow = hasSpecial(upgradeEffects, SPECIAL_EFFECTS.ETERNAL_FLOW);
   
   // Active boons
   const activeBoons = useMemo(
@@ -381,7 +398,12 @@ export function GameProvider({ children }: { children: ReactNode }) {
     studyCostMult,
     effectiveRegenWithSpecials,
     manaCascadeBonus,
+    manaWaterfallBonus,
     effectiveRegen,
+    hasManaWaterfall,
+    hasFlowSurge,
+    hasManaOverflow,
+    hasEternalFlow,
     dps,
     activeBoons,
     canCastSpell,

src/components/game/StatsTab.tsx

@@ -14,8 +14,9 @@ export function StatsTab() {
   const store = useGameStore();
   const { 
     upgradeEffects, maxMana, baseRegen, clickMana, 
-    meditationMultiplier, incursionStrength, manaCascadeBonus, effectiveRegen,
-    hasSteadyStream, hasManaTorrent, hasDesperateWells
+    meditationMultiplier, incursionStrength, manaCascadeBonus, manaWaterfallBonus, effectiveRegen,
+    hasSteadyStream, hasManaTorrent, hasDesperateWells,
+    hasManaWaterfall, hasFlowSurge, hasManaOverflow, hasEternalFlow
   } = useManaStats();
   const { activeSpellDef, pactMultiplier, pactInsightMultiplier } = useCombatStats();
   const { studySpeedMult, studyCostMult } = useStudyStats();
@@ -221,6 +222,36 @@ export function StatsTab() {
                   <span className="text-cyan-400">+{fmtDec(manaCascadeBonus, 2)}/hr</span>
                 </div>
               )}
+              {manaWaterfallBonus > 0 && (
+                <div className="flex justify-between text-sm">
+                  <span className="text-cyan-400">Mana Waterfall Bonus:</span>
+                  <span className="text-cyan-400">+{fmtDec(manaWaterfallBonus, 2)}/hr</span>
+                </div>
+              )}
+              {hasManaWaterfall && (
+                <div className="flex justify-between text-sm">
+                  <span className="text-cyan-400">Mana Waterfall:</span>
+                  <span className="text-cyan-400">+0.25 regen per 100 max mana</span>
+                </div>
+              )}
+              {hasFlowSurge && (
+                <div className="flex justify-between text-sm">
+                  <span className="text-cyan-400">Flow Surge:</span>
+                  <span className="text-cyan-400">Clicks activate +100% regen for 1hr</span>
+                </div>
+              )}
+              {hasManaOverflow && (
+                <div className="flex justify-between text-sm">
+                  <span className="text-cyan-400">Mana Overflow:</span>
+                  <span className="text-cyan-400">Raw mana can exceed max by 20%</span>
+                </div>
+              )}
+              {hasEternalFlow && (
+                <div className="flex justify-between text-sm">
+                  <span className="text-green-400">Eternal Flow:</span>
+                  <span className="text-green-400">Regen immune to ALL penalties</span>
+                </div>
+              )}
               {hasManaTorrent && store.rawMana > maxMana * 0.75 && (
                 <div className="flex justify-between text-sm">
                   <span className="text-cyan-400">Mana Torrent:</span>

src/components/game/stats/ManaStatsSection.tsx

@@ -18,6 +18,11 @@ export interface ManaStatsSectionProps {
   effectiveRegen: number;
   incursionStrength: number;
   manaCascadeBonus: number;
+  manaWaterfallBonus: number;
+  hasManaWaterfall: boolean;
+  hasFlowSurge: boolean;
+  hasManaOverflow: boolean;
+  hasEternalFlow: boolean;
 }
 
 export function ManaStatsSection({
@@ -30,6 +35,11 @@ export function ManaStatsSection({
   effectiveRegen,
   incursionStrength,
   manaCascadeBonus,
+  manaWaterfallBonus,
+  hasManaWaterfall,
+  hasFlowSurge,
+  hasManaOverflow,
+  hasEternalFlow,
 }: ManaStatsSectionProps) {
   return (
     <Card className="bg-gray-900/80 border-gray-700">
@@ -197,6 +207,36 @@ export function ManaStatsSection({
                 <span className="text-cyan-400">+{fmtDec(manaCascadeBonus, 2)}/hr</span>
               </div>
             )}
+            {manaWaterfallBonus > 0 && (
+              <div className="flex justify-between text-sm">
+                <span className="text-cyan-400">Mana Waterfall Bonus:</span>
+                <span className="text-cyan-400">+{fmtDec(manaWaterfallBonus, 2)}/hr</span>
+              </div>
+            )}
+            {hasManaWaterfall && (
+              <div className="flex justify-between text-sm">
+                <span className="text-cyan-400">Mana Waterfall:</span>
+                <span className="text-cyan-400">+0.25 regen per 100 max mana</span>
+              </div>
+            )}
+            {hasFlowSurge && (
+              <div className="flex justify-between text-sm">
+                <span className="text-cyan-400">Flow Surge:</span>
+                <span className="text-cyan-400">Clicks activate +100% regen for 1hr</span>
+              </div>
+            )}
+            {hasManaOverflow && (
+              <div className="flex justify-between text-sm">
+                <span className="text-cyan-400">Mana Overflow:</span>
+                <span className="text-cyan-400">Raw mana can exceed max by 20%</span>
+              </div>
+            )}
+            {hasEternalFlow && (
+              <div className="flex justify-between text-sm">
+                <span className="text-green-400">Eternal Flow:</span>
+                <span className="text-green-400">Regen immune to ALL penalties</span>
+              </div>
+            )}
             {hasSpecial(upgradeEffects, SPECIAL_EFFECTS.MANA_TORRENT) && store.rawMana > maxMana * 0.75 && (
               <div className="flex justify-between text-sm">
                 <span className="text-cyan-400">Mana Torrent:</span>

src/components/game/tabs/StatsTab.tsx

@@ -23,6 +23,11 @@ export interface StatsTabProps {
   effectiveRegen: number;
   incursionStrength: number;
   manaCascadeBonus: number;
+  manaWaterfallBonus: number;
+  hasManaWaterfall: boolean;
+  hasFlowSurge: boolean;
+  hasManaOverflow: boolean;
+  hasEternalFlow: boolean;
   studySpeedMult: number;
   studyCostMult: number;
 }
@@ -37,6 +42,11 @@ export function StatsTab({
   effectiveRegen,
   incursionStrength,
   manaCascadeBonus,
+  manaWaterfallBonus,
+  hasManaWaterfall,
+  hasFlowSurge,
+  hasManaOverflow,
+  hasEternalFlow,
   studySpeedMult,
   studyCostMult,
 }: StatsTabProps) {
@@ -62,6 +72,11 @@ export function StatsTab({
         effectiveRegen={effectiveRegen}
         incursionStrength={incursionStrength}
         manaCascadeBonus={manaCascadeBonus}
+        manaWaterfallBonus={manaWaterfallBonus}
+        hasManaWaterfall={hasManaWaterfall}
+        hasFlowSurge={hasFlowSurge}
+        hasManaOverflow={hasManaOverflow}
+        hasEternalFlow={hasEternalFlow}
       />
 
       {/* Combat Stats */}