Kira EMA9 EMA21 VWAP ZONES

//version=5
indicator("Kira EMA9 EMA21 VWAP ZONES", overlay=true)

// === EMAs ===
ema9 = ta.ema(close, 9)
ema21 = ta.ema(close, 21)

// === VWAP ===
vwapLine = ta.vwap(hlc3)

// === CONDITIONS ===
isBuy = ema9 > ema21 and close > vwapLine
isSell = ema9 < ema21 and close < vwapLine
noTrade = not isBuy and not isSell

// === PLOTS ===
plot(ema9, color=color.green, linewidth=2)
plot(ema21, color=color.red, linewidth=2)
plot(vwapLine, color=color.blue, linewidth=2)

// === BACKGROUND ZONES ===
bgcolor(isBuy ? color.new(color.green, 85) :
isSell ? color.new(color.red, 85) :
color.new(color.gray, 85))

// === BUY / SELL ARROWS EVERY BAR ===
plotshape(isBuy, title="BUY", style=shape.triangleup,
location=location.belowbar,
color=color.green, size=size.tiny)

plotshape(isSell, title="SELL", style=shape.triangledown,
location=location.abovebar,
color=color.red, size=size.tiny)

// === ALERTS ===
alertcondition(isBuy, title="BUY ZONE ACTIVE",
message="BUY zone active on {{ticker}}")

alertcondition(isSell, title="SELL ZONE ACTIVE",
message="SELL zone active on {{ticker}}")