diff --git a/package.json b/package.json
index 7fb48c3..60ce11a 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,7 @@
   "version": "0.1.0",
   "private": true,
   "scripts": {
-    "dev": "next dev",
+    "dev": "next dev -p 3006",
     "build": "next build",
     "start": "next start",
     "lint": "eslint"
diff --git a/src/app/(dashboard)/dashboard/page.tsx b/src/app/(dashboard)/dashboard/page.tsx
index bda9349..6b36c95 100644
--- a/src/app/(dashboard)/dashboard/page.tsx
+++ b/src/app/(dashboard)/dashboard/page.tsx
@@ -1,12 +1,13 @@
 "use client"
 
-import { useState } from "react"
+import { useState, useEffect } from "react"
 import { PageHeader } from "@/components/shared/page-header"
 import { StatCard } from "@/components/dashboard/stat-card"
+import { StatCardSkeleton } from "@/components/dashboard/stat-card-skeleton"
 import { RecentLeadsTable } from "@/components/dashboard/recent-leads-table"
 import { LeadStatusChart } from "@/components/dashboard/lead-status-chart"
 import { LeadsPerMonthChart } from "@/components/dashboard/leads-per-month-chart"
-import { dashboardStats } from "@/data/dashboard"
+import { getDashboardStats } from "@/data/dashboard"
 import {
   Users,
   UserPlus,
@@ -23,19 +24,26 @@ import {
   SelectTrigger,
   SelectValue,
 } from "@/components/ui/select"
+import { DashboardStats } from "@/types"
 
 export default function DashboardPage() {
-  const stats = dashboardStats
   const [period, setPeriod] = useState("6months")
+  const [stats, setStats] = useState<DashboardStats | null>(null)
 
-  const statCards = [
-    { title: "Total Leads", value: stats.totalLeads, icon: Users, variant: "blue" as const, description: "All time" },
-    { title: "Open Leads", value: stats.openLeads, icon: UserPlus, variant: "blue" as const, description: "Needs attention" },
-    { title: "Contacted", value: stats.contactedLeads, icon: PhoneCall, variant: "amber" as const, description: "In conversation" },
-    { title: "Pending", value: stats.pendingLeads, icon: Clock, variant: "purple" as const, description: "Awaiting decision" },
-    { title: "Closed", value: stats.closedLeads, icon: CheckCircle2, variant: "emerald" as const, description: "Won" },
-    { title: "Conversion Rate", value: `${stats.conversionRate}%`, icon: TrendingUp, variant: "emerald" as const, description: `${stats.closedLeads} of ${stats.totalLeads} leads` },
-  ]
+  useEffect(() => {
+    setStats(getDashboardStats(period))
+  }, [period])
+
+  const statCards = stats
+    ? [
+        { title: "Total Leads", value: stats.totalLeads, icon: Users, variant: "blue" as const, description: stats.periodLabel },
+        { title: "Open Leads", value: stats.openLeads, icon: UserPlus, variant: "blue" as const, description: "Needs attention" },
+        { title: "Contacted", value: stats.contactedLeads, icon: PhoneCall, variant: "amber" as const, description: "In conversation" },
+        { title: "Pending", value: stats.pendingLeads, icon: Clock, variant: "purple" as const, description: "Awaiting decision" },
+        { title: "Closed", value: stats.closedLeads, icon: CheckCircle2, variant: "emerald" as const, description: "Won" },
+        { title: "Conversion Rate", value: `${stats.conversionRate}%`, icon: TrendingUp, variant: "emerald" as const, description: `${stats.closedLeads} of ${stats.totalLeads} leads` },
+      ]
+    : []
 
   return (
     <div className="space-y-6">
@@ -55,17 +63,20 @@ export default function DashboardPage() {
       </PageHeader>
 
       <div className="grid gap-4 sm:grid-cols-2 lg:grid-cols-3 xl:grid-cols-6">
-        {statCards.map((card, i) => (
-          <StatCard key={card.title} {...card} index={i} />
-        ))}
+        {stats
+          ? statCards.map((card, i) => (
+              <StatCard key={card.title} {...card} index={i} />
+            ))
+          : Array.from({ length: 6 }).map((_, i) => <StatCardSkeleton key={i} />)
+        }
       </div>
 
       <div className="grid gap-6 lg:grid-cols-2">
-        <LeadStatusChart data={stats.statusDistribution} />
-        <LeadsPerMonthChart data={stats.leadsPerMonth} />
+        <LeadStatusChart data={stats?.statusDistribution ?? []} />
+        <LeadsPerMonthChart data={stats?.leadsPerMonth ?? []} />
       </div>
 
-      <RecentLeadsTable leads={stats.recentLeads} />
+      <RecentLeadsTable leads={stats?.recentLeads ?? []} />
     </div>
   )
 }
diff --git a/src/app/(dashboard)/leads/page.tsx b/src/app/(dashboard)/leads/page.tsx
index 94114be..578043c 100644
--- a/src/app/(dashboard)/leads/page.tsx
+++ b/src/app/(dashboard)/leads/page.tsx
@@ -6,15 +6,21 @@ import { LeadsTable } from "@/components/leads/leads-table"
 import { LeadsTableToolbar } from "@/components/leads/leads-table-toolbar"
 import { LeadFormDialog } from "@/components/leads/lead-form-dialog"
 import { leads } from "@/data/leads"
+import { filterLeadsByPeriod } from "@/lib/date-utils"
 
 export default function LeadsPage() {
   const [search, setSearch] = useState("")
   const [statusFilter, setStatusFilter] = useState("all")
+  const [periodFilter, setPeriodFilter] = useState("all")
   const [createOpen, setCreateOpen] = useState(false)
 
   const filteredLeads = useMemo(() => {
     let result = leads
 
+    if (periodFilter && periodFilter !== "all") {
+      result = filterLeadsByPeriod(result, periodFilter)
+    }
+
     if (search) {
       const q = search.toLowerCase()
       result = result.filter(
@@ -31,7 +37,7 @@ export default function LeadsPage() {
     }
 
     return result
-  }, [search, statusFilter])
+  }, [search, statusFilter, periodFilter])
 
   return (
     <div className="space-y-4">
@@ -47,6 +53,8 @@ export default function LeadsPage() {
             onSearchChange={setSearch}
             statusFilter={statusFilter}
             onStatusFilterChange={setStatusFilter}
+            periodFilter={periodFilter}
+            onPeriodFilterChange={setPeriodFilter}
             onCreateClick={() => setCreateOpen(true)}
           />
         </div>
diff --git a/src/components/dashboard/leads-per-month-chart.tsx b/src/components/dashboard/leads-per-month-chart.tsx
index 1be8046..b245d36 100644
--- a/src/components/dashboard/leads-per-month-chart.tsx
+++ b/src/components/dashboard/leads-per-month-chart.tsx
@@ -4,14 +4,14 @@ import { useState, useMemo } from "react"
 import { motion } from "framer-motion"
 import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card"
 
-interface MonthlyData {
-  month: string
+interface IntervalData {
+  label: string
   leads: number
   closed: number
 }
 
 interface LeadsPerMonthChartProps {
-  data: MonthlyData[]
+  data: IntervalData[]
 }
 
 const BAR_GRADIENT_TOP = "#3B6AB8"
@@ -138,7 +138,7 @@ export function LeadsPerMonthChart({ data }: LeadsPerMonthChartProps) {
 
                   return (
                     <g
-                      key={d.month}
+                      key={d.label}
                       onMouseEnter={() => setHovered(i)}
                       onMouseLeave={() => setHovered(null)}
                       style={{ cursor: "pointer" }}
@@ -188,7 +188,7 @@ export function LeadsPerMonthChart({ data }: LeadsPerMonthChartProps) {
                         fontWeight={isActive ? 600 : 400}
                         textAnchor="middle"
                       >
-                        {d.month}
+                        {d.label}
                       </text>
                     </g>
                   )
@@ -216,7 +216,7 @@ export function LeadsPerMonthChart({ data }: LeadsPerMonthChartProps) {
                   }}
                 >
                   <div className="mb-1.5 text-xs font-semibold" style={{ color: "hsl(var(--foreground))" }}>
-                    {activeDatum.month}
+                    {activeDatum.label}
                   </div>
                   <div className="mb-1 flex items-center justify-between gap-4 text-xs" style={{ color: "hsl(var(--muted-foreground))" }}>
                     <span className="flex items-center gap-1.5">
diff --git a/src/components/leads/leads-table-toolbar.tsx b/src/components/leads/leads-table-toolbar.tsx
index 605386b..4ff4416 100644
--- a/src/components/leads/leads-table-toolbar.tsx
+++ b/src/components/leads/leads-table-toolbar.tsx
@@ -1,6 +1,5 @@
 "use client"
 
-import { useState } from "react"
 import { Input } from "@/components/ui/input"
 import { Button } from "@/components/ui/button"
 import {
@@ -10,14 +9,15 @@ import {
   SelectTrigger,
   SelectValue,
 } from "@/components/ui/select"
-import { Search, Plus, SlidersHorizontal } from "lucide-react"
-import { LeadStatus } from "@/types"
+import { Search, Plus } from "lucide-react"
 
 interface LeadsTableToolbarProps {
   search: string
   onSearchChange: (value: string) => void
   statusFilter: string
   onStatusFilterChange: (value: string) => void
+  periodFilter: string
+  onPeriodFilterChange: (value: string) => void
   onCreateClick: () => void
 }
 
@@ -26,6 +26,8 @@ export function LeadsTableToolbar({
   onSearchChange,
   statusFilter,
   onStatusFilterChange,
+  periodFilter,
+  onPeriodFilterChange,
   onCreateClick,
 }: LeadsTableToolbarProps) {
   return (
@@ -40,6 +42,18 @@ export function LeadsTableToolbar({
         />
       </div>
       <div className="flex items-center gap-3">
+        <Select value={periodFilter} onValueChange={onPeriodFilterChange}>
+          <SelectTrigger className="h-9 w-[150px]">
+            <SelectValue placeholder="All Time" />
+          </SelectTrigger>
+          <SelectContent>
+            <SelectItem value="all">All Time</SelectItem>
+            <SelectItem value="7days">Last 7 days</SelectItem>
+            <SelectItem value="30days">Last 30 days</SelectItem>
+            <SelectItem value="6months">Last 6 months</SelectItem>
+            <SelectItem value="12months">Last 12 months</SelectItem>
+          </SelectContent>
+        </Select>
         <Select value={statusFilter} onValueChange={onStatusFilterChange}>
           <SelectTrigger className="h-9 w-[140px]">
             <SelectValue placeholder="All Statuses" />
@@ -53,10 +67,6 @@ export function LeadsTableToolbar({
             <SelectItem value="ignored">Ignored</SelectItem>
           </SelectContent>
         </Select>
-        <Button size="sm" variant="outline" className="h-9 gap-2">
-          <SlidersHorizontal className="h-4 w-4" />
-          <span className="hidden sm:inline">Filters</span>
-        </Button>
         <Button size="sm" className="h-9 gap-2" onClick={onCreateClick}>
           <Plus className="h-4 w-4" />
           <span className="hidden sm:inline">Create Lead</span>
diff --git a/src/data/dashboard.ts b/src/data/dashboard.ts
index a1e0153..3e05fdf 100644
--- a/src/data/dashboard.ts
+++ b/src/data/dashboard.ts
@@ -1,52 +1,54 @@
 import { DashboardStats } from "@/types"
 import { leads } from "./leads"
+import { filterLeadsByPeriod, groupLeadsByInterval } from "@/lib/date-utils"
 
-function getLeadsPerMonth() {
-  const months: { month: string; leads: number; closed: number }[] = []
-  const now = new Date()
+const periodLabels: Record<string, string> = {
+  "7days": "Last 7 days",
+  "30days": "Last 30 days",
+  "6months": "Last 6 months",
+  "12months": "Last 12 months",
+}
 
-  for (let i = 5; i >= 0; i--) {
-    const d = new Date(now.getFullYear(), now.getMonth() - i, 1)
-    const monthStr = d.toLocaleDateString("en-US", { month: "short", year: "2-digit" })
-    const yearMonth = `${d.getFullYear()}-${String(d.getMonth() + 1).padStart(2, "0")}`
+export function getDashboardStats(period: string): DashboardStats {
+  const filtered = filterLeadsByPeriod(leads, period)
+  const label = periodLabels[period] ?? "Selected period"
 
-    const leadsCount = leads.filter((l) => l.createdAt.startsWith(yearMonth)).length
-    const closedCount = leads.filter(
-      (l) => l.status === "closed" && l.updatedAt.startsWith(yearMonth)
-    ).length
+  const totalLeads = filtered.length
+  const openLeads = filtered.filter((l) => l.status === "open").length
+  const contactedLeads = filtered.filter((l) => l.status === "contacted").length
+  const pendingLeads = filtered.filter((l) => l.status === "pending").length
+  const closedLeads = filtered.filter((l) => l.status === "closed").length
+  const ignoredLeads = filtered.filter((l) => l.status === "ignored").length
+  const conversionRate = totalLeads > 0
+    ? Math.round((closedLeads / totalLeads) * 100)
+    : 0
 
-    months.push({ month: monthStr, leads: leadsCount, closed: closedCount })
+  function getStatusDistribution() {
+    const statusCounts: Record<string, number> = { open: 0, contacted: 0, pending: 0, closed: 0, ignored: 0 }
+    filtered.forEach((l) => {
+      statusCounts[l.status]++
+    })
+
+    return [
+      { name: "Open", value: statusCounts.open, color: "#3b82f6" },
+      { name: "Contacted", value: statusCounts.contacted, color: "#f59e0b" },
+      { name: "Pending", value: statusCounts.pending, color: "#8b5cf6" },
+      { name: "Closed", value: statusCounts.closed, color: "#10b981" },
+      { name: "Ignored", value: statusCounts.ignored, color: "#6B7280" },
+    ]
   }
 
-  return months
-}
-
-function getStatusDistribution() {
-  const statusCounts: Record<string, number> = { open: 0, contacted: 0, pending: 0, closed: 0, ignored: 0 }
-  leads.forEach((l) => {
-    statusCounts[l.status]++
-  })
-
-  return [
-    { name: "Open", value: statusCounts.open, color: "#3b82f6" },
-    { name: "Contacted", value: statusCounts.contacted, color: "#f59e0b" },
-    { name: "Pending", value: statusCounts.pending, color: "#8b5cf6" },
-    { name: "Closed", value: statusCounts.closed, color: "#10b981" },
-    { name: "Ignored", value: statusCounts.ignored, color: "#6B7280" },
-  ]
-}
-
-export const dashboardStats: DashboardStats = {
-  totalLeads: leads.length,
-  openLeads: leads.filter((l) => l.status === "open").length,
-  contactedLeads: leads.filter((l) => l.status === "contacted").length,
-  pendingLeads: leads.filter((l) => l.status === "pending").length,
-  closedLeads: leads.filter((l) => l.status === "closed").length,
-  ignoredLeads: leads.filter((l) => l.status === "ignored").length,
-  conversionRate: Math.round(
-    (leads.filter((l) => l.status === "closed").length / leads.length) * 100
-  ),
-  leadsPerMonth: getLeadsPerMonth(),
-  recentLeads: leads.slice(0, 10),
-  statusDistribution: getStatusDistribution(),
+  return {
+    totalLeads,
+    openLeads,
+    contactedLeads,
+    pendingLeads,
+    closedLeads,
+    ignoredLeads,
+    conversionRate,
+    leadsPerMonth: groupLeadsByInterval(filtered, period),
+    recentLeads: filtered.slice(0, 10),
+    statusDistribution: getStatusDistribution(),
+    periodLabel: label,
+  }
 }
diff --git a/src/lib/date-utils.ts b/src/lib/date-utils.ts
new file mode 100644
index 0000000..a191d51
--- /dev/null
+++ b/src/lib/date-utils.ts
@@ -0,0 +1,95 @@
+import { Lead } from "@/types"
+
+export function getPeriodDateRange(period: string): { start: Date; end: Date } {
+  const end = new Date()
+  const start = new Date()
+
+  switch (period) {
+    case "7days":
+      start.setDate(start.getDate() - 7)
+      break
+    case "30days":
+      start.setDate(start.getDate() - 30)
+      break
+    case "6months":
+      start.setMonth(start.getMonth() - 6)
+      break
+    case "12months":
+      start.setMonth(start.getMonth() - 12)
+      break
+    default:
+      start.setMonth(start.getMonth() - 6)
+  }
+
+  return { start, end }
+}
+
+export function filterLeadsByPeriod(leads: Lead[], period: string): Lead[] {
+  const { start, end } = getPeriodDateRange(period)
+  return leads.filter((l) => {
+    const d = new Date(l.createdAt)
+    return d >= start && d <= end
+  })
+}
+
+export function groupLeadsByInterval(
+  leads: Lead[],
+  period: string
+): { label: string; leads: number; closed: number }[] {
+  const { start, end } = getPeriodDateRange(period)
+
+  if (period === "7days" || period === "30days") {
+    return groupByDay(leads, start, end)
+  }
+  return groupByMonth(leads, start, end)
+}
+
+function groupByDay(
+  leads: Lead[],
+  start: Date,
+  end: Date
+): { label: string; leads: number; closed: number }[] {
+  const result: { label: string; leads: number; closed: number }[] = []
+  const current = new Date(start)
+
+  while (current <= end) {
+    const dateStr = current.toISOString().slice(0, 10)
+    const dayLeads = leads.filter((l) => l.createdAt.startsWith(dateStr))
+    const closedCount = dayLeads.filter((l) => l.status === "closed").length
+
+    result.push({
+      label: current.toLocaleDateString("en-US", { month: "short", day: "numeric" }),
+      leads: dayLeads.length,
+      closed: closedCount,
+    })
+
+    current.setDate(current.getDate() + 1)
+  }
+
+  return result
+}
+
+function groupByMonth(
+  leads: Lead[],
+  start: Date,
+  end: Date
+): { label: string; leads: number; closed: number }[] {
+  const result: { label: string; leads: number; closed: number }[] = []
+  const current = new Date(start.getFullYear(), start.getMonth(), 1)
+
+  while (current <= end) {
+    const yearMonth = `${current.getFullYear()}-${String(current.getMonth() + 1).padStart(2, "0")}`
+    const monthLeads = leads.filter((l) => l.createdAt.startsWith(yearMonth))
+    const closedCount = monthLeads.filter((l) => l.status === "closed").length
+
+    result.push({
+      label: current.toLocaleDateString("en-US", { month: "short", year: "2-digit" }),
+      leads: monthLeads.length,
+      closed: closedCount,
+    })
+
+    current.setMonth(current.getMonth() + 1)
+  }
+
+  return result
+}
diff --git a/src/types/index.ts b/src/types/index.ts
index 30dac64..a9b5f1a 100644
--- a/src/types/index.ts
+++ b/src/types/index.ts
@@ -46,9 +46,10 @@ export interface DashboardStats {
   closedLeads: number
   ignoredLeads: number
   conversionRate: number
-  leadsPerMonth: { month: string; leads: number; closed: number }[]
+  leadsPerMonth: { label: string; leads: number; closed: number }[]
   recentLeads: Lead[]
   statusDistribution: { name: string; value: number; color: string }[]
+  periodLabel: string
 }
 
 export interface ColumnFilter {