feat: add admin sales statistics dashboard with 5 analytics tabs

- Add sales stats API client with typed interfaces for all endpoints
- Implement AdminSalesStats page with summary cards and period selector
- Add TrialsTab with provider breakdown donut chart and daily area chart
- Add SalesTab with tariff/period breakdown and daily revenue chart
- Add RenewalsTab with period comparison and trend indicators
- Add AddonsTab with package breakdown bar chart
- Add DepositsTab with payment method breakdown bar chart
- Add SimpleBarChart, SimpleAreaChart, DonutChart components
- Add PeriodSelector with preset periods and custom date range
- Full responsive design (mobile/tablet/desktop/TG Mini App)
- ARIA accessibility (tablist, tab, tabpanel, aria-selected)
- Error handling with isError on all queries
- Empty data guards on all chart components
- i18n support across all 4 locales (en, ru, zh, fa)

src/api/adminSalesStats.ts

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+import apiClient from './client';
+
+// ============ Period Params ============
+
+export interface SalesStatsParams {
+  days?: number;
+  start_date?: string;
+  end_date?: string;
+}
+
+// ============ Summary ============
+
+export interface SalesSummary {
+  total_revenue_kopeks: number;
+  active_subscriptions: number;
+  active_trials: number;
+  new_trials: number;
+  trial_to_paid_conversion: number;
+  renewals_count: number;
+  addon_revenue_kopeks: number;
+}
+
+// ============ Trials ============
+
+export interface ProviderBreakdownItem {
+  provider: string;
+  count: number;
+}
+
+export interface DailyTrialItem {
+  date: string;
+  count: number;
+}
+
+export interface TrialsStats {
+  total_trials: number;
+  conversion_rate: number;
+  avg_trial_duration_days: number;
+  by_provider: ProviderBreakdownItem[];
+  daily: DailyTrialItem[];
+}
+
+// ============ Sales ============
+
+export interface SalesByTariffItem {
+  tariff_id: number;
+  tariff_name: string;
+  count: number;
+}
+
+export interface SalesByPeriodItem {
+  period_days: number;
+  count: number;
+}
+
+export interface DailySalesItem {
+  date: string;
+  count: number;
+  revenue_kopeks: number;
+}
+
+export interface SalesStats {
+  total_sales: number;
+  total_revenue_kopeks: number;
+  avg_order_kopeks: number;
+  top_tariff_name: string;
+  by_tariff: SalesByTariffItem[];
+  by_period: SalesByPeriodItem[];
+  daily: DailySalesItem[];
+}
+
+// ============ Renewals ============
+
+export interface RenewalPeriodStats {
+  count: number;
+  revenue_kopeks: number;
+}
+
+export interface RenewalChange {
+  absolute: number;
+  percent: number;
+  trend: 'up' | 'down' | 'stable';
+}
+
+export interface DailyRenewalItem {
+  date: string;
+  count: number;
+}
+
+export interface RenewalsStats {
+  total_renewals: number;
+  total_revenue_kopeks: number;
+  renewal_rate: number;
+  current_period: RenewalPeriodStats;
+  previous_period: RenewalPeriodStats;
+  change: RenewalChange;
+  daily: DailyRenewalItem[];
+}
+
+// ============ Add-ons ============
+
+export interface AddonByPackageItem {
+  traffic_gb: number;
+  count: number;
+}
+
+export interface DailyAddonItem {
+  date: string;
+  count: number;
+  total_gb: number;
+}
+
+export interface AddonsStats {
+  total_purchases: number;
+  total_gb_purchased: number;
+  addon_revenue_kopeks: number;
+  by_package: AddonByPackageItem[];
+  daily: DailyAddonItem[];
+}
+
+// ============ Deposits ============
+
+export interface DepositByMethodItem {
+  method: string;
+  count: number;
+  amount_kopeks: number;
+}
+
+export interface DailyDepositItem {
+  date: string;
+  count: number;
+  amount_kopeks: number;
+}
+
+export interface DepositsStats {
+  total_deposits: number;
+  total_amount_kopeks: number;
+  avg_deposit_kopeks: number;
+  by_method: DepositByMethodItem[];
+  daily: DailyDepositItem[];
+}
+
+// ============ API ============
+
+export const salesStatsApi = {
+  getSummary: async (params: SalesStatsParams = {}): Promise<SalesSummary> => {
+    const response = await apiClient.get('/cabinet/admin/stats/sales/summary', { params });
+    return response.data;
+  },
+
+  getTrials: async (params: SalesStatsParams = {}): Promise<TrialsStats> => {
+    const response = await apiClient.get('/cabinet/admin/stats/sales/trials', { params });
+    return response.data;
+  },
+
+  getSales: async (params: SalesStatsParams = {}): Promise<SalesStats> => {
+    const response = await apiClient.get('/cabinet/admin/stats/sales/subscriptions', { params });
+    return response.data;
+  },
+
+  getRenewals: async (params: SalesStatsParams = {}): Promise<RenewalsStats> => {
+    const response = await apiClient.get('/cabinet/admin/stats/sales/renewals', { params });
+    return response.data;
+  },
+
+  getAddons: async (params: SalesStatsParams = {}): Promise<AddonsStats> => {
+    const response = await apiClient.get('/cabinet/admin/stats/sales/addons', { params });
+    return response.data;
+  },
+
+  getDeposits: async (params: SalesStatsParams = {}): Promise<DepositsStats> => {
+    const response = await apiClient.get('/cabinet/admin/stats/sales/deposits', { params });
+    return response.data;
+  },
+};

src/components/sales-stats/AddonsTab.tsx

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+import { useQuery } from '@tanstack/react-query';
+import { useTranslation } from 'react-i18next';
+
+import type { SalesStatsParams } from '../../api/adminSalesStats';
+import { salesStatsApi } from '../../api/adminSalesStats';
+import { SALES_STATS } from '../../constants/salesStats';
+import { useCurrency } from '../../hooks/useCurrency';
+import { StatCard } from '../stats';
+
+import { SimpleAreaChart } from './SimpleAreaChart';
+import { SimpleBarChart } from './SimpleBarChart';
+
+interface AddonsTabProps {
+  params: SalesStatsParams;
+}
+
+export function AddonsTab({ params }: AddonsTabProps) {
+  const { t } = useTranslation();
+  const { formatWithCurrency } = useCurrency();
+
+  const { data, isLoading, isError } = useQuery({
+    queryKey: ['sales-stats', 'addons', params],
+    queryFn: () => salesStatsApi.getAddons(params),
+    staleTime: SALES_STATS.STALE_TIME,
+  });
+
+  if (isLoading) {
+    return (
+      <div className="animate-pulse space-y-4">
+        {Array.from({ length: 3 }, (_, i) => (
+          <div key={i} className="h-24 rounded-xl bg-dark-800/30" />
+        ))}
+      </div>
+    );
+  }
+
+  if (isError || !data) {
+    return <div className="py-8 text-center text-red-400">{t('admin.salesStats.loadError')}</div>;
+  }
+
+  const packageBarData = data.by_package.map((item) => ({
+    name: `${item.traffic_gb} GB`,
+    value: item.count,
+  }));
+
+  const dailyData = data.daily.map((item) => ({
+    date: item.date,
+    value: item.count,
+  }));
+
+  return (
+    <div className="space-y-4">
+      <div className="grid grid-cols-1 gap-3 sm:grid-cols-3">
+        <StatCard
+          label={t('admin.salesStats.addons.totalPurchases')}
+          value={data.total_purchases}
+        />
+        <StatCard
+          label={t('admin.salesStats.addons.totalGb')}
+          value={`${data.total_gb_purchased} GB`}
+        />
+        <StatCard
+          label={t('admin.salesStats.addons.revenue')}
+          value={formatWithCurrency(data.addon_revenue_kopeks / SALES_STATS.KOPEKS_DIVISOR)}
+          valueClassName="text-success-400"
+        />
+      </div>
+
+      <div className="grid grid-cols-1 gap-4 lg:grid-cols-2">
+        <SimpleBarChart data={packageBarData} title={t('admin.salesStats.addons.byPackage')} />
+        <SimpleAreaChart
+          data={dailyData}
+          title={t('admin.salesStats.addons.dailyChart')}
+          chartId="addons-daily"
+          valueLabel={t('admin.salesStats.addons.purchases')}
+          color={SALES_STATS.BAR_COLORS[5]}
+        />
+      </div>
+    </div>
+  );
+}

src/components/sales-stats/DepositsTab.tsx

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+import { useQuery } from '@tanstack/react-query';
+import { useTranslation } from 'react-i18next';
+
+import type { SalesStatsParams } from '../../api/adminSalesStats';
+import { salesStatsApi } from '../../api/adminSalesStats';
+import { SALES_STATS } from '../../constants/salesStats';
+import { useCurrency } from '../../hooks/useCurrency';
+import { StatCard } from '../stats';
+
+import { SimpleAreaChart } from './SimpleAreaChart';
+import { SimpleBarChart } from './SimpleBarChart';
+
+interface DepositsTabProps {
+  params: SalesStatsParams;
+}
+
+const METHOD_LABELS: Record<string, string> = {
+  telegram_stars: 'Telegram Stars',
+  tribute: 'Tribute',
+  yookassa: 'YooKassa',
+  cryptobot: 'CryptoBot',
+  heleket: 'Heleket',
+  mulenpay: 'Mulenpay',
+  pal24: 'Pal24',
+  wata: 'Wata',
+  platega: 'Platega',
+  cloudpayments: 'CloudPayments',
+  freekassa: 'FreeKassa',
+  kassa_ai: 'Kassa AI',
+};
+
+export function DepositsTab({ params }: DepositsTabProps) {
+  const { t } = useTranslation();
+  const { formatWithCurrency } = useCurrency();
+
+  const { data, isLoading, isError } = useQuery({
+    queryKey: ['sales-stats', 'deposits', params],
+    queryFn: () => salesStatsApi.getDeposits(params),
+    staleTime: SALES_STATS.STALE_TIME,
+  });
+
+  if (isLoading) {
+    return (
+      <div className="animate-pulse space-y-4">
+        {Array.from({ length: 3 }, (_, i) => (
+          <div key={i} className="h-24 rounded-xl bg-dark-800/30" />
+        ))}
+      </div>
+    );
+  }
+
+  if (isError || !data) {
+    return <div className="py-8 text-center text-red-400">{t('admin.salesStats.loadError')}</div>;
+  }
+
+  const methodBarData = data.by_method.map((item) => ({
+    name: METHOD_LABELS[item.method] || item.method,
+    value: item.amount_kopeks / SALES_STATS.KOPEKS_DIVISOR,
+  }));
+
+  const dailyData = data.daily.map((item) => ({
+    date: item.date,
+    value: item.amount_kopeks / SALES_STATS.KOPEKS_DIVISOR,
+  }));
+
+  return (
+    <div className="space-y-4">
+      <div className="grid grid-cols-1 gap-3 sm:grid-cols-3">
+        <StatCard
+          label={t('admin.salesStats.deposits.totalDeposits')}
+          value={data.total_deposits}
+        />
+        <StatCard
+          label={t('admin.salesStats.deposits.totalAmount')}
+          value={formatWithCurrency(data.total_amount_kopeks / SALES_STATS.KOPEKS_DIVISOR)}
+          valueClassName="text-success-400"
+        />
+        <StatCard
+          label={t('admin.salesStats.deposits.avgDeposit')}
+          value={formatWithCurrency(data.avg_deposit_kopeks / SALES_STATS.KOPEKS_DIVISOR)}
+        />
+      </div>
+
+      <SimpleBarChart
+        data={methodBarData}
+        title={t('admin.salesStats.deposits.byMethod')}
+        valueFormatter={(v) => formatWithCurrency(v)}
+      />
+
+      <SimpleAreaChart
+        data={dailyData}
+        title={t('admin.salesStats.deposits.dailyChart')}
+        chartId="deposits-daily"
+        valueLabel={t('admin.salesStats.deposits.revenue')}
+      />
+    </div>
+  );
+}

src/components/sales-stats/DonutChart.tsx

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+import { useTranslation } from 'react-i18next';
+import { Cell, Pie, PieChart, ResponsiveContainer, Tooltip } from 'recharts';
+
+import { SALES_STATS } from '../../constants/salesStats';
+import { useChartColors } from '../../hooks/useChartColors';
+
+interface DonutChartProps {
+  data: { name: string; value: number; color?: string }[];
+  title: string;
+  height?: number;
+}
+
+export function DonutChart({
+  data,
+  title,
+  height = SALES_STATS.CHART.PIE_HEIGHT,
+}: DonutChartProps) {
+  const { t } = useTranslation();
+  const colors = useChartColors();
+
+  if (data.length === 0) {
+    return (
+      <div className="bento-card">
+        <h4 className="mb-3 text-sm font-semibold text-dark-200">{title}</h4>
+        <div className="flex items-center justify-center text-sm text-dark-400" style={{ height }}>
+          {t('common.noData')}
+        </div>
+      </div>
+    );
+  }
+
+  return (
+    <div className="bento-card">
+      <h4 className="mb-3 text-sm font-semibold text-dark-200">{title}</h4>
+      <ResponsiveContainer width="100%" height={height}>
+        <PieChart>
+          <Pie
+            data={data}
+            cx="50%"
+            cy="50%"
+            innerRadius={55}
+            outerRadius={80}
+            paddingAngle={2}
+            dataKey="value"
+            nameKey="name"
+          >
+            {data.map((entry, index) => (
+              <Cell
+                key={entry.name}
+                fill={entry.color || SALES_STATS.BAR_COLORS[index % SALES_STATS.BAR_COLORS.length]}
+              />
+            ))}
+          </Pie>
+          <Tooltip
+            contentStyle={{
+              backgroundColor: colors.tooltipBg,
+              border: `1px solid ${colors.tooltipBorder}`,
+              borderRadius: SALES_STATS.TOOLTIP.BORDER_RADIUS,
+              fontSize: SALES_STATS.TOOLTIP.FONT_SIZE,
+            }}
+            labelStyle={{ color: colors.label }}
+          />
+        </PieChart>
+      </ResponsiveContainer>
+      <div className="mt-2 flex flex-wrap justify-center gap-3">
+        {data.map((entry, index) => (
+          <div key={entry.name} className="flex items-center gap-1.5 text-xs text-dark-400">
+            <div
+              className="h-2.5 w-2.5 rounded-full"
+              style={{
+                backgroundColor:
+                  entry.color || SALES_STATS.BAR_COLORS[index % SALES_STATS.BAR_COLORS.length],
+              }}
+            />
+            <span>
+              {entry.name}: {entry.value}
+            </span>
+          </div>
+        ))}
+      </div>
+    </div>
+  );
+}

src/components/sales-stats/PeriodSelector.tsx

@@ -0,0 +1,89 @@
+import { useState } from 'react';
+import { useTranslation } from 'react-i18next';
+
+import { SALES_STATS } from '../../constants/salesStats';
+
+interface PeriodSelectorProps {
+  value: { days?: number; startDate?: string; endDate?: string };
+  onChange: (period: { days?: number; startDate?: string; endDate?: string }) => void;
+}
+
+export function PeriodSelector({ value, onChange }: PeriodSelectorProps) {
+  const { t } = useTranslation();
+  const [showCustom, setShowCustom] = useState(false);
+
+  const presetLabels: Record<number, string> = {
+    7: t('admin.salesStats.period.week'),
+    30: t('admin.salesStats.period.month'),
+    90: t('admin.salesStats.period.quarter'),
+    0: t('admin.salesStats.period.all'),
+  };
+
+  const handlePreset = (days: number) => {
+    setShowCustom(false);
+    onChange({ days });
+  };
+
+  const handleCustomToggle = () => {
+    setShowCustom((prev) => !prev);
+  };
+
+  const handleDateChange = (field: 'startDate' | 'endDate', dateStr: string) => {
+    onChange({
+      ...value,
+      days: undefined,
+      [field]: dateStr,
+    });
+  };
+
+  const isPresetActive = (days: number) => !showCustom && value.days === days;
+
+  return (
+    <div className="flex flex-wrap items-center gap-2">
+      {SALES_STATS.PERIOD_PRESETS.map((days) => (
+        <button
+          key={days}
+          type="button"
+          onClick={() => handlePreset(days)}
+          className={`rounded-lg px-3 py-1.5 text-sm font-medium transition-colors ${
+            isPresetActive(days)
+              ? 'bg-accent-500/20 text-accent-400'
+              : 'bg-dark-800/50 text-dark-400 hover:bg-dark-700/50 hover:text-dark-300'
+          }`}
+        >
+          {presetLabels[days]}
+        </button>
+      ))}
+
+      <button
+        type="button"
+        onClick={handleCustomToggle}
+        className={`rounded-lg px-3 py-1.5 text-sm font-medium transition-colors ${
+          showCustom
+            ? 'bg-accent-500/20 text-accent-400'
+            : 'bg-dark-800/50 text-dark-400 hover:bg-dark-700/50 hover:text-dark-300'
+        }`}
+      >
+        {t('admin.salesStats.period.custom')}
+      </button>
+
+      {showCustom && (
+        <div className="flex items-center gap-2">
+          <input
+            type="date"
+            value={value.startDate || ''}
+            onChange={(e) => handleDateChange('startDate', e.target.value)}
+            className="rounded-lg border border-dark-600 bg-dark-800 px-2 py-1 text-sm text-dark-200"
+          />
+          <span className="text-dark-500">{'\u2014'}</span>
+          <input
+            type="date"
+            value={value.endDate || ''}
+            onChange={(e) => handleDateChange('endDate', e.target.value)}
+            className="rounded-lg border border-dark-600 bg-dark-800 px-2 py-1 text-sm text-dark-200"
+          />
+        </div>
+      )}
+    </div>
+  );
+}

src/components/sales-stats/RenewalsTab.tsx

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+import { useQuery } from '@tanstack/react-query';
+import { useTranslation } from 'react-i18next';
+
+import type { SalesStatsParams } from '../../api/adminSalesStats';
+import { salesStatsApi } from '../../api/adminSalesStats';
+import { SALES_STATS } from '../../constants/salesStats';
+import { useCurrency } from '../../hooks/useCurrency';
+import { StatCard } from '../stats';
+import { TREND_STYLES } from '../stats/constants';
+
+import { SimpleAreaChart } from './SimpleAreaChart';
+
+interface RenewalsTabProps {
+  params: SalesStatsParams;
+}
+
+export function RenewalsTab({ params }: RenewalsTabProps) {
+  const { t } = useTranslation();
+  const { formatWithCurrency } = useCurrency();
+
+  const { data, isLoading, isError } = useQuery({
+    queryKey: ['sales-stats', 'renewals', params],
+    queryFn: () => salesStatsApi.getRenewals(params),
+    staleTime: SALES_STATS.STALE_TIME,
+  });
+
+  if (isLoading) {
+    return (
+      <div className="animate-pulse space-y-4">
+        {Array.from({ length: 3 }, (_, i) => (
+          <div key={i} className="h-24 rounded-xl bg-dark-800/30" />
+        ))}
+      </div>
+    );
+  }
+
+  if (isError || !data) {
+    return <div className="py-8 text-center text-red-400">{t('admin.salesStats.loadError')}</div>;
+  }
+
+  const dailyData = data.daily.map((item) => ({
+    date: item.date,
+    value: item.count,
+  }));
+
+  const trendStyle = TREND_STYLES[data.change.trend] ?? TREND_STYLES.stable;
+
+  return (
+    <div className="space-y-4">
+      <div className="grid grid-cols-1 gap-3 sm:grid-cols-3">
+        <StatCard label={t('admin.salesStats.renewals.total')} value={data.total_renewals} />
+        <StatCard
+          label={t('admin.salesStats.renewals.rate')}
+          value={`${data.renewal_rate}%`}
+          valueClassName="text-success-400"
+        />
+        <StatCard
+          label={t('admin.salesStats.renewals.revenue')}
+          value={formatWithCurrency(data.total_revenue_kopeks / SALES_STATS.KOPEKS_DIVISOR)}
+          valueClassName="text-success-400"
+        />
+      </div>
+
+      <div className="bento-card">
+        <h4 className="mb-3 text-sm font-semibold text-dark-200">
+          {t('admin.salesStats.renewals.comparison')}
+        </h4>
+        <div className="grid grid-cols-2 gap-3">
+          <div className="rounded-xl bg-dark-800/30 p-3">
+            <div className="text-xs text-dark-500">
+              {t('admin.salesStats.renewals.currentPeriod')}
+            </div>
+            <div className="mt-1 flex items-baseline gap-2">
+              <span className="text-base font-semibold text-dark-100 sm:text-lg">
+                {data.current_period.count}
+              </span>
+              <span className={`text-sm font-medium ${trendStyle.className}`}>
+                {trendStyle.arrow} {Math.abs(data.change.percent)}%
+              </span>
+            </div>
+          </div>
+          <div className="rounded-xl bg-dark-800/30 p-3">
+            <div className="text-xs text-dark-500">
+              {t('admin.salesStats.renewals.previousPeriod')}
+            </div>
+            <div className="mt-1 text-base font-semibold text-dark-400 sm:text-lg">
+              {data.previous_period.count}
+            </div>
+          </div>
+        </div>
+      </div>
+
+      <SimpleAreaChart
+        data={dailyData}
+        title={t('admin.salesStats.renewals.dailyChart')}
+        chartId="renewals-daily"
+        valueLabel={t('admin.salesStats.renewals.renewals')}
+        color={SALES_STATS.BAR_COLORS[2]}
+      />
+    </div>
+  );
+}

src/components/sales-stats/SalesTab.tsx

@@ -0,0 +1,82 @@
+import { useQuery } from '@tanstack/react-query';
+import { useTranslation } from 'react-i18next';
+
+import type { SalesStatsParams } from '../../api/adminSalesStats';
+import { salesStatsApi } from '../../api/adminSalesStats';
+import { SALES_STATS } from '../../constants/salesStats';
+import { useCurrency } from '../../hooks/useCurrency';
+import { StatCard } from '../stats';
+
+import { DonutChart } from './DonutChart';
+import { SimpleAreaChart } from './SimpleAreaChart';
+import { SimpleBarChart } from './SimpleBarChart';
+
+interface SalesTabProps {
+  params: SalesStatsParams;
+}
+
+export function SalesTab({ params }: SalesTabProps) {
+  const { t } = useTranslation();
+  const { formatWithCurrency } = useCurrency();
+
+  const { data, isLoading, isError } = useQuery({
+    queryKey: ['sales-stats', 'sales', params],
+    queryFn: () => salesStatsApi.getSales(params),
+    staleTime: SALES_STATS.STALE_TIME,
+  });
+
+  if (isLoading) {
+    return (
+      <div className="animate-pulse space-y-4">
+        {Array.from({ length: 3 }, (_, i) => (
+          <div key={i} className="h-24 rounded-xl bg-dark-800/30" />
+        ))}
+      </div>
+    );
+  }
+
+  if (isError || !data) {
+    return <div className="py-8 text-center text-red-400">{t('admin.salesStats.loadError')}</div>;
+  }
+
+  const tariffBarData = data.by_tariff.map((item) => ({
+    name: item.tariff_name,
+    value: item.count,
+  }));
+
+  const periodPieData = data.by_period.map((item) => ({
+    name: `${item.period_days} ${t('admin.trafficUsage.days')}`,
+    value: item.count,
+  }));
+
+  const dailyData = data.daily.map((item) => ({
+    date: item.date,
+    value: item.revenue_kopeks / SALES_STATS.KOPEKS_DIVISOR,
+  }));
+
+  return (
+    <div className="space-y-4">
+      <div className="grid grid-cols-1 gap-3 sm:grid-cols-3">
+        <StatCard label={t('admin.salesStats.sales.totalSales')} value={data.total_sales} />
+        <StatCard
+          label={t('admin.salesStats.sales.avgOrder')}
+          value={formatWithCurrency(data.avg_order_kopeks / SALES_STATS.KOPEKS_DIVISOR)}
+          valueClassName="text-success-400"
+        />
+        <StatCard label={t('admin.salesStats.sales.topTariff')} value={data.top_tariff_name} />
+      </div>
+
+      <div className="grid grid-cols-1 gap-4 lg:grid-cols-2">
+        <SimpleBarChart data={tariffBarData} title={t('admin.salesStats.sales.byTariff')} />
+        <DonutChart data={periodPieData} title={t('admin.salesStats.sales.byPeriod')} />
+      </div>
+
+      <SimpleAreaChart
+        data={dailyData}
+        title={t('admin.salesStats.sales.dailyChart')}
+        chartId="sales-daily"
+        valueLabel={t('admin.salesStats.summary.revenue')}
+      />
+    </div>
+  );
+}

src/components/sales-stats/SimpleAreaChart.tsx

@@ -0,0 +1,114 @@
+import { useMemo } from 'react';
+import { useTranslation } from 'react-i18next';
+import {
+  Area,
+  AreaChart,
+  CartesianGrid,
+  ResponsiveContainer,
+  Tooltip,
+  XAxis,
+  YAxis,
+} from 'recharts';
+
+import { SALES_STATS } from '../../constants/salesStats';
+import { useChartColors } from '../../hooks/useChartColors';
+
+interface SimpleAreaChartProps {
+  data: { date: string; value: number }[];
+  title: string;
+  color?: string;
+  chartId: string;
+  valueLabel?: string;
+  height?: number;
+}
+
+export function SimpleAreaChart({
+  data,
+  title,
+  color,
+  chartId,
+  valueLabel,
+  height = SALES_STATS.CHART.HEIGHT,
+}: SimpleAreaChartProps) {
+  const { t, i18n } = useTranslation();
+  const colors = useChartColors();
+  const strokeColor = color || colors.earnings;
+
+  const chartData = useMemo(
+    () =>
+      data.map((item) => ({
+        ...item,
+        label: new Date(item.date + 'T00:00:00').toLocaleDateString(i18n.language, {
+          month: 'short',
+          day: 'numeric',
+        }),
+      })),
+    [data, i18n.language],
+  );
+
+  if (data.length === 0) {
+    return (
+      <div className="bento-card">
+        <h4 className="mb-3 text-sm font-semibold text-dark-200">{title}</h4>
+        <div className="flex items-center justify-center text-sm text-dark-400" style={{ height }}>
+          {t('common.noData')}
+        </div>
+      </div>
+    );
+  }
+
+  return (
+    <div className="bento-card">
+      <h4 className="mb-3 text-sm font-semibold text-dark-200">{title}</h4>
+      <ResponsiveContainer width="100%" height={height}>
+        <AreaChart data={chartData} margin={SALES_STATS.CHART.MARGIN}>
+          <defs>
+            <linearGradient id={`gradient-${chartId}`} x1="0" y1="0" x2="0" y2="1">
+              <stop
+                offset={SALES_STATS.GRADIENT.START_OFFSET}
+                stopColor={strokeColor}
+                stopOpacity={SALES_STATS.GRADIENT.START_OPACITY}
+              />
+              <stop
+                offset={SALES_STATS.GRADIENT.END_OFFSET}
+                stopColor={strokeColor}
+                stopOpacity={SALES_STATS.GRADIENT.END_OPACITY}
+              />
+            </linearGradient>
+          </defs>
+          <CartesianGrid strokeDasharray={SALES_STATS.GRID_DASH} stroke={colors.grid} />
+          <XAxis
+            dataKey="label"
+            tick={{ fill: colors.tick, fontSize: SALES_STATS.AXIS.TICK_FONT_SIZE }}
+            tickLine={false}
+            interval="preserveStartEnd"
+          />
+          <YAxis
+            tick={{ fill: colors.tick, fontSize: SALES_STATS.AXIS.TICK_FONT_SIZE }}
+            tickLine={false}
+            axisLine={false}
+            width={SALES_STATS.AXIS.WIDTH}
+            allowDecimals={false}
+          />
+          <Tooltip
+            contentStyle={{
+              backgroundColor: colors.tooltipBg,
+              border: `1px solid ${colors.tooltipBorder}`,
+              borderRadius: SALES_STATS.TOOLTIP.BORDER_RADIUS,
+              fontSize: SALES_STATS.TOOLTIP.FONT_SIZE,
+            }}
+            labelStyle={{ color: colors.label }}
+            formatter={(value: number | undefined) => [value ?? 0, valueLabel || '']}
+          />
+          <Area
+            type="monotone"
+            dataKey="value"
+            stroke={strokeColor}
+            fill={`url(#gradient-${chartId})`}
+            strokeWidth={SALES_STATS.STROKE_WIDTH}
+          />
+        </AreaChart>
+      </ResponsiveContainer>
+    </div>
+  );
+}

src/components/sales-stats/SimpleBarChart.tsx

@@ -0,0 +1,97 @@
+import { useMemo } from 'react';
+import { useTranslation } from 'react-i18next';
+import {
+  Bar,
+  BarChart,
+  CartesianGrid,
+  Cell,
+  ResponsiveContainer,
+  Tooltip,
+  XAxis,
+  YAxis,
+} from 'recharts';
+
+import { SALES_STATS } from '../../constants/salesStats';
+import { useChartColors } from '../../hooks/useChartColors';
+
+interface SimpleBarChartProps {
+  data: { name: string; value: number; color?: string }[];
+  title: string;
+  height?: number;
+  valueFormatter?: (value: number) => string;
+}
+
+const BAR_CHART_MARGIN = {
+  ...SALES_STATS.CHART.MARGIN,
+  bottom: 40,
+};
+
+export function SimpleBarChart({
+  data,
+  title,
+  height = SALES_STATS.CHART.HEIGHT,
+  valueFormatter,
+}: SimpleBarChartProps) {
+  const { t } = useTranslation();
+  const colors = useChartColors();
+
+  const adjustedHeight = useMemo(() => height + 35, [height]);
+
+  if (data.length === 0) {
+    return (
+      <div className="bento-card">
+        <h4 className="mb-3 text-sm font-semibold text-dark-200">{title}</h4>
+        <div className="flex items-center justify-center text-sm text-dark-400" style={{ height }}>
+          {t('common.noData')}
+        </div>
+      </div>
+    );
+  }
+
+  return (
+    <div className="bento-card">
+      <h4 className="mb-3 text-sm font-semibold text-dark-200">{title}</h4>
+      <ResponsiveContainer width="100%" height={adjustedHeight}>
+        <BarChart data={data} margin={BAR_CHART_MARGIN}>
+          <CartesianGrid strokeDasharray={SALES_STATS.GRID_DASH} stroke={colors.grid} />
+          <XAxis
+            dataKey="name"
+            tick={{ fill: colors.tick, fontSize: SALES_STATS.AXIS.TICK_FONT_SIZE }}
+            tickLine={false}
+            angle={-30}
+            textAnchor="end"
+            height={60}
+            interval={0}
+          />
+          <YAxis
+            tick={{ fill: colors.tick, fontSize: SALES_STATS.AXIS.TICK_FONT_SIZE }}
+            tickLine={false}
+            axisLine={false}
+            width={SALES_STATS.AXIS.WIDTH}
+            allowDecimals={false}
+          />
+          <Tooltip
+            contentStyle={{
+              backgroundColor: colors.tooltipBg,
+              border: `1px solid ${colors.tooltipBorder}`,
+              borderRadius: SALES_STATS.TOOLTIP.BORDER_RADIUS,
+              fontSize: SALES_STATS.TOOLTIP.FONT_SIZE,
+            }}
+            labelStyle={{ color: colors.label }}
+            formatter={(value: number | undefined) => [
+              valueFormatter ? valueFormatter(value ?? 0) : (value ?? 0),
+            ]}
+          />
+          <Bar dataKey="value" radius={[4, 4, 0, 0]}>
+            {data.map((entry, index) => (
+              <Cell
+                key={entry.name}
+                fill={entry.color || SALES_STATS.BAR_COLORS[index % SALES_STATS.BAR_COLORS.length]}
+              />
+            ))}
+          </Bar>
+        </BarChart>
+      </ResponsiveContainer>
+    </div>
+  );
+}

src/components/sales-stats/TrialsTab.tsx

@@ -0,0 +1,86 @@
+import { useQuery } from '@tanstack/react-query';
+import { useTranslation } from 'react-i18next';
+
+import type { SalesStatsParams } from '../../api/adminSalesStats';
+import { salesStatsApi } from '../../api/adminSalesStats';
+import { SALES_STATS } from '../../constants/salesStats';
+import { StatCard } from '../stats';
+
+import { DonutChart } from './DonutChart';
+import { SimpleAreaChart } from './SimpleAreaChart';
+
+interface TrialsTabProps {
+  params: SalesStatsParams;
+}
+
+const PROVIDER_LABELS: Record<string, string> = {
+  telegram: 'Telegram',
+  email: 'Email',
+  vk: 'VK',
+  yandex: 'Yandex',
+  google: 'Google',
+  discord: 'Discord',
+};
+
+export function TrialsTab({ params }: TrialsTabProps) {
+  const { t } = useTranslation();
+
+  const { data, isLoading, isError } = useQuery({
+    queryKey: ['sales-stats', 'trials', params],
+    queryFn: () => salesStatsApi.getTrials(params),
+    staleTime: SALES_STATS.STALE_TIME,
+  });
+
+  if (isLoading) {
+    return (
+      <div className="animate-pulse space-y-4">
+        {Array.from({ length: 3 }, (_, i) => (
+          <div key={i} className="h-24 rounded-xl bg-dark-800/30" />
+        ))}
+      </div>
+    );
+  }
+
+  if (isError || !data) {
+    return <div className="py-8 text-center text-red-400">{t('admin.salesStats.loadError')}</div>;
+  }
+
+  const pieData = data.by_provider.map((item) => ({
+    name: PROVIDER_LABELS[item.provider] || item.provider,
+    value: item.count,
+    color: SALES_STATS.PROVIDER_COLORS[item.provider as keyof typeof SALES_STATS.PROVIDER_COLORS],
+  }));
+
+  const areaData = data.daily.map((item) => ({
+    date: item.date,
+    value: item.count,
+  }));
+
+  return (
+    <div className="space-y-4">
+      <div className="grid grid-cols-1 gap-3 sm:grid-cols-3">
+        <StatCard label={t('admin.salesStats.trials.total')} value={data.total_trials} />
+        <StatCard
+          label={t('admin.salesStats.trials.conversion')}
+          value={`${data.conversion_rate}%`}
+          valueClassName="text-success-400"
+        />
+        <StatCard
+          label={t('admin.salesStats.trials.avgDuration')}
+          value={`${data.avg_trial_duration_days} ${t('admin.trafficUsage.days')}`}
+        />
+      </div>
+
+      <div className="grid grid-cols-1 gap-4 lg:grid-cols-2">
+        <DonutChart data={pieData} title={t('admin.salesStats.trials.byProvider')} />
+        <SimpleAreaChart
+          data={areaData}
+          title={t('admin.salesStats.trials.dailyChart')}
+          chartId="trials-daily"
+          valueLabel={t('admin.salesStats.trials.registrations')}
+          color={SALES_STATS.PROVIDER_COLORS.telegram}
+        />
+      </div>
+    </div>
+  );
+}

src/components/sales-stats/index.ts

@@ -0,0 +1,9 @@
+export { AddonsTab } from './AddonsTab';
+export { DepositsTab } from './DepositsTab';
+export { DonutChart } from './DonutChart';
+export { PeriodSelector } from './PeriodSelector';
+export { RenewalsTab } from './RenewalsTab';
+export { SalesTab } from './SalesTab';
+export { SimpleAreaChart } from './SimpleAreaChart';
+export { SimpleBarChart } from './SimpleBarChart';
+export { TrialsTab } from './TrialsTab';

src/constants/salesStats.ts

@@ -0,0 +1,39 @@
+import { CHART_COMMON } from './charts';
+
+export const SALES_STATS = {
+  CHART: {
+    ...CHART_COMMON.CHART,
+    HEIGHT: 220,
+    PIE_HEIGHT: 250,
+  },
+  KOPEKS_DIVISOR: CHART_COMMON.KOPEKS_DIVISOR,
+  GRADIENT: CHART_COMMON.GRADIENT,
+  AXIS: {
+    TICK_FONT_SIZE: CHART_COMMON.AXIS.TICK_FONT_SIZE,
+    WIDTH: 40,
+  },
+  TOOLTIP: CHART_COMMON.TOOLTIP,
+  STROKE_WIDTH: CHART_COMMON.STROKE_WIDTH,
+  GRID_DASH: CHART_COMMON.GRID_DASH,
+  STALE_TIME: CHART_COMMON.STALE_TIME,
+  DEFAULT_PERIOD: 30,
+  PERIOD_PRESETS: [7, 30, 90, 0] as const,
+  PROVIDER_COLORS: {
+    telegram: '#229ED9',
+    email: '#34d399',
+    vk: '#4C75A3',
+    yandex: '#FC3F1D',
+    google: '#4285F4',
+    discord: '#5865F2',
+  } as const,
+  BAR_COLORS: [
+    '#34d399',
+    '#818cf8',
+    '#f59e0b',
+    '#ec4899',
+    '#06b6d4',
+    '#8b5cf6',
+    '#f97316',
+    '#14b8a6',
+  ] as const,
+} as const;

src/pages/AdminSalesStats.tsx

@@ -0,0 +1,171 @@
+import { useMemo, useState } from 'react';
+import { useTranslation } from 'react-i18next';
+import { useQuery } from '@tanstack/react-query';
+
+import type { SalesStatsParams } from '../api/adminSalesStats';
+import { salesStatsApi } from '../api/adminSalesStats';
+import { SALES_STATS } from '../constants/salesStats';
+import { useCurrency } from '../hooks/useCurrency';
+import { AdminBackButton } from '../components/admin/AdminBackButton';
+import { StatCard } from '../components/stats';
+import {
+  AddonsTab,
+  DepositsTab,
+  PeriodSelector,
+  RenewalsTab,
+  SalesTab,
+  TrialsTab,
+} from '../components/sales-stats';
+
+type TabId = 'trials' | 'sales' | 'renewals' | 'addons' | 'deposits';
+
+export default function AdminSalesStats() {
+  const { t } = useTranslation();
+  const { formatWithCurrency } = useCurrency();
+
+  const [activeTab, setActiveTab] = useState<TabId>('trials');
+  const [period, setPeriod] = useState<{
+    days?: number;
+    startDate?: string;
+    endDate?: string;
+  }>({ days: SALES_STATS.DEFAULT_PERIOD });
+
+  const params: SalesStatsParams = useMemo(
+    () => ({
+      days: period.days,
+      start_date: period.startDate,
+      end_date: period.endDate,
+    }),
+    [period.days, period.startDate, period.endDate],
+  );
+
+  const isValidPeriod = period.days !== undefined || (!!period.startDate && !!period.endDate);
+
+  const {
+    data: summary,
+    isLoading: summaryLoading,
+    isError: summaryError,
+  } = useQuery({
+    queryKey: ['sales-stats', 'summary', params],
+    queryFn: () => salesStatsApi.getSummary(params),
+    staleTime: SALES_STATS.STALE_TIME,
+    enabled: isValidPeriod,
+  });
+
+  const tabs: { id: TabId; label: string }[] = [
+    { id: 'trials', label: t('admin.salesStats.tabs.trials') },
+    { id: 'sales', label: t('admin.salesStats.tabs.sales') },
+    { id: 'renewals', label: t('admin.salesStats.tabs.renewals') },
+    { id: 'addons', label: t('admin.salesStats.tabs.addons') },
+    { id: 'deposits', label: t('admin.salesStats.tabs.deposits') },
+  ];
+
+  return (
+    <div className="animate-fade-in space-y-4 overflow-hidden">
+      {/* Header */}
+      <div className="flex items-center gap-3">
+        <AdminBackButton />
+        <div>
+          <h1 className="text-xl font-bold text-dark-100 sm:text-2xl">
+            {t('admin.salesStats.title')}
+          </h1>
+          <p className="text-sm text-dark-400">{t('admin.salesStats.subtitle')}</p>
+        </div>
+      </div>
+
+      {/* Period selector */}
+      <PeriodSelector value={period} onChange={setPeriod} />
+
+      {/* Summary cards */}
+      {summaryError && (
+        <div className="rounded-xl bg-error-500/10 px-4 py-3 text-sm text-error-400">
+          {t('admin.salesStats.loadError')}
+        </div>
+      )}
+      <div className="grid grid-cols-2 gap-3 sm:grid-cols-3 lg:grid-cols-4 xl:grid-cols-7">
+        <StatCard
+          label={t('admin.salesStats.summary.revenue')}
+          value={
+            summaryLoading
+              ? '...'
+              : formatWithCurrency(
+                  (summary?.total_revenue_kopeks ?? 0) / SALES_STATS.KOPEKS_DIVISOR,
+                )
+          }
+          valueClassName="text-success-400"
+        />
+        <StatCard
+          label={t('admin.salesStats.summary.activeSubs')}
+          value={summaryLoading ? '...' : (summary?.active_subscriptions ?? 0)}
+          valueClassName="text-accent-400"
+        />
+        <StatCard
+          label={t('admin.salesStats.summary.activeTrials')}
+          value={summaryLoading ? '...' : (summary?.active_trials ?? 0)}
+        />
+        <StatCard
+          label={t('admin.salesStats.summary.newTrials')}
+          value={summaryLoading ? '...' : (summary?.new_trials ?? 0)}
+          valueClassName="text-blue-400"
+        />
+        <StatCard
+          label={t('admin.salesStats.summary.conversion')}
+          value={summaryLoading ? '...' : `${summary?.trial_to_paid_conversion ?? 0}%`}
+          valueClassName="text-warning-400"
+        />
+        <StatCard
+          label={t('admin.salesStats.summary.renewals')}
+          value={summaryLoading ? '...' : (summary?.renewals_count ?? 0)}
+          valueClassName="text-success-400"
+        />
+        <StatCard
+          label={t('admin.salesStats.summary.addonRevenue')}
+          value={
+            summaryLoading
+              ? '...'
+              : formatWithCurrency(
+                  (summary?.addon_revenue_kopeks ?? 0) / SALES_STATS.KOPEKS_DIVISOR,
+                )
+          }
+          valueClassName="text-accent-400"
+        />
+      </div>
+
+      {/* Tabs */}
+      <div
+        className="scrollbar-hide flex gap-1 overflow-x-auto rounded-xl bg-dark-800/30 p-1"
+        role="tablist"
+      >
+        {tabs.map((tab) => (
+          <button
+            key={tab.id}
+            id={`tab-${tab.id}`}
+            type="button"
+            role="tab"
+            aria-selected={activeTab === tab.id}
+            aria-controls={`panel-${tab.id}`}
+            onClick={() => setActiveTab(tab.id)}
+            className={`shrink-0 whitespace-nowrap rounded-lg px-3 py-2.5 text-xs font-medium transition-colors sm:text-sm ${
+              activeTab === tab.id
+                ? 'bg-dark-700/60 text-dark-100'
+                : 'text-dark-400 hover:text-dark-300'
+            }`}
+          >
+            {tab.label}
+          </button>
+        ))}
+      </div>
+
+      {/* Tab content */}
+      {isValidPeriod && (
+        <div role="tabpanel" id={`panel-${activeTab}`} aria-labelledby={`tab-${activeTab}`}>
+          {activeTab === 'trials' && <TrialsTab params={params} />}
+          {activeTab === 'sales' && <SalesTab params={params} />}
+          {activeTab === 'renewals' && <RenewalsTab params={params} />}
+          {activeTab === 'addons' && <AddonsTab params={params} />}
+          {activeTab === 'deposits' && <DepositsTab params={params} />}
+        </div>
+      )}
+    </div>
+  );
+}