Add notification platform setup guides to README

Made-with: Cursor

README.md

@@ -5,6 +5,7 @@ A lightweight on-chain monitoring and alerting system designed to give users sit
 
 Koin Ping observes on-chain activity and notifies users when predefined conditions are met. It does not execute transactions, manage wallets, or speculate on prices.
 
+
 ## Getting Started
 
 ### Prerequisites
@@ -45,16 +46,16 @@ cd frontend && npm run dev
 ```
 
 The API listens on `http://localhost:3001` and the frontend on
-`http://localhost:3000` by default for development.
+`http://localhost:3000` by default.
 
 ## Rationale
 
-Crypto users may actively monitor addresses with webhooks integrating popular 
-messaging platforms: Discord, Slack, Telegram.
-This lightweight, reliable framework makes instant awareness of on-chain 
-activity trivial, without polling block explorers manually. Koin Ping watches 
-addresses, evaluates configurable alert rules (incoming transactions, outgoing 
-transactions, "large" transfers, balance thresholds), and sends notifications.
+Crypto users who hold or actively monitor addresses need a lightweight, reliable
+way to know when on-chain activity occurs without polling block explorers
+manually. Koin Ping fills that gap: it watches a set of Ethereum addresses,
+evaluates configurable alert rules (incoming transactions, outgoing
+transactions, large transfers, balance thresholds), and notifies the user
+through Discord webhooks.
 
 ## Design
 
@@ -131,7 +132,7 @@ To receive alerts via Telegram, you need to create a bot and get your chat ID.
 
 4. In the JSON response, find the `"chat"` object — the `"id"` field is your **Chat ID** (a numeric value).
 
-   > **Tip:** If the `'result"` array is empty, make sure you sent a message to your bot first, then refresh the page.
+   > **Tip:** If the `"result"` array is empty, make sure you sent a message to your bot first, then refresh the page.
 
 #### 3. Save in Koin Ping
 
@@ -143,7 +144,82 @@ To receive alerts via Telegram, you need to create a bot and get your chat ID.
 
 ---
 
-*Guides for Discord, Slack, and Email coming soon.*
+### Discord
+
+To receive alerts in a Discord channel, you need to create a webhook.
+
+#### 1. Create a Discord Webhook
+
+1. Open **Discord** and navigate to the server where you want to receive alerts.
+2. Go to the channel you want alerts posted in (or create a new one, e.g. `#koin-alerts`).
+3. Click the **gear icon** next to the channel name to open **Channel Settings**.
+4. Go to **Integrations** > **Webhooks**.
+5. Click **New Webhook**.
+6. Give it a name (e.g. `Koin Ping`) and click **Copy Webhook URL**.
+
+   The URL will look like: `https://discord.com/api/webhooks/123456789/AbCdEfGhIjKl...`
+
+#### 2. Save in Koin Ping
+
+1. Go to the **Alerts** page in Koin Ping.
+2. In the **Notification Settings** panel, find the **Discord** section.
+3. Paste your **Webhook URL** into the field.
+4. Click **Save Settings**.
+5. Click **Test All Channels** to verify — you should see a test message appear in your Discord channel.
+
+---
+
+### Slack
+
+To receive alerts in a Slack channel, you need to create an Incoming Webhook.
+
+#### 1. Create a Slack App with Incoming Webhooks
+
+1. Go to [https://api.slack.com/apps](https://api.slack.com/apps) and click **Create New App**.
+2. Choose **From scratch**, give it a name (e.g. `Koin Ping`), and select your workspace.
+3. In the app settings, go to **Incoming Webhooks** in the left sidebar.
+4. Toggle **Activate Incoming Webhooks** to **On**.
+5. Click **Add New Webhook to Workspace**.
+6. Select the channel where you want alerts posted (e.g. `#koin-alerts`) and click **Allow**.
+7. Copy the **Webhook URL** — it will start with `https://hooks.slack.com/services/...`
+
+#### 2. Save in Koin Ping
+
+1. Go to the **Alerts** page in Koin Ping.
+2. In the **Notification Settings** panel, find the **Slack** section.
+3. Paste your **Webhook URL** into the field.
+4. Click **Save Settings**.
+5. Click **Test All Channels** to verify — you should see a test message appear in your Slack channel.
+
+---
+
+### Email
+
+Koin Ping sends email alerts and digests via [Resend](https://resend.com). To enable email notifications, the application owner must configure a Resend account and verified sending domain.
+
+#### For Application Owners (Deployment Setup)
+
+1. Create an account at [resend.com](https://resend.com).
+2. Go to [resend.com/domains](https://resend.com/domains) and add your sending domain.
+3. Add the DNS records Resend provides (SPF, DKIM, etc.) to your domain's DNS settings.
+4. Once verified, create an API key at [resend.com/api-keys](https://resend.com/api-keys).
+5. Set the following in your `.env` file:
+
+   ```
+   RESEND_API_KEY=re_your_api_key_here
+   EMAIL_FROM=Your App <alerts@yourdomain.com>
+   ```
+
+6. Restart the API server and poller to pick up the changes.
+
+#### For Users
+
+1. Go to the **Alerts** page in Koin Ping.
+2. In the **Notification Settings** panel, find the **Email** section.
+3. Enter the email address where you want to receive alerts.
+4. Click **Save Settings**.
+5. Click **Verify Email** to receive a confirmation message.
+6. Click **Test All Channels** to verify — you should receive a test alert at your email address.
 
 ## License
 
@@ -152,5 +228,3 @@ MIT. See [LICENSE](LICENSE).
 ## Author
 
 Steven Jannette
-
-

backend-go/README.md

@@ -2,14 +2,6 @@ Start DB:
 
 brew services start postgresql@15
 
+Run Backend:
 
-From the backend-go directory, you have a few options:
-
-Option 1: Single command (both API + poller)
-cd /Users/kjannette/workspace/koin_ping_0.2.0/backend-gomake dev-all
-
-Option 2: Two separate terminals
-Terminal 1 (API server):
-cd /Users/kjannette/workspace/koin_ping_0.2.0/backend-gogo run ./cmd/api
-Terminal 2 (Poller):
-cd /Users/kjannette/workspace/koin_ping_0.2.0/backend-gogo run ./cmd/poller
+cd /Users/kjannette/workspace/koin_ping/backend-go go run ./cmd/api

backend-go/internal/database/postgres.go

@@ -1,3 +1,4 @@
+// Package database manages PostgreSQL connection pools.
 package database
 
 import (
@@ -10,21 +11,21 @@ import (
 )
 
 const (
-
+	// maxConnIdleSeconds is the maximum idle time for a connection.
 	maxConnIdleSeconds = 30
-
+	// maxConnLifetimeMinutes is the maximum lifetime for a connection.
 	maxConnLifetimeMinutes = 5
-
+	// connectTimeoutSeconds is the timeout for initial connection.
 	connectTimeoutSeconds = 10
-
+	// maxConns is the maximum number of connections in the pool.
 	maxConns = 20
-
+	// minConns is the minimum number of connections in the pool.
 	minConns = 2
 )
 
 var pool *pgxpool.Pool //nolint:gochecknoglobals
 
-// establishPostgreSQL connection pool using the given DSN.
+// Connect establishes a PostgreSQL connection pool using the given DSN.
 func Connect(dsn string) (*pgxpool.Pool, error) {
 	cfg, err := pgxpool.ParseConfig(dsn)
 	if err != nil {
@@ -56,10 +57,12 @@ func Connect(dsn string) (*pgxpool.Pool, error) {
 	return p, nil
 }
 
+// Pool returns the global connection pool.
 func Pool() *pgxpool.Pool {
 	return pool
 }
 
+// Close closes the global connection pool.
 func Close() {
 	if pool != nil {
 		pool.Close()

backend-go/internal/domain/types.go

@@ -1,7 +1,9 @@
+// Package domain defines core domain types shared across the application.
 package domain
 
 import "time"
 
+// Address represents a tracked Ethereum address.
 type Address struct {
 	ID        int       `json:"id"`
 	UserID    string    `json:"user_id"`    //nolint:tagliatelle
@@ -10,10 +12,13 @@ type Address struct {
 	CreatedAt time.Time `json:"created_at"` //nolint:tagliatelle
 }
 
+// AlertType identifies the kind of alert rule.
 type AlertType string
 
+// String implements fmt.Stringer.
 func (a AlertType) String() string { return string(a) }
 
+// Alert type constants define the supported alert triggers.
 const (
 	AlertIncomingTx    AlertType = "incoming_tx"
 	AlertOutgoingTx    AlertType = "outgoing_tx"
@@ -21,6 +26,7 @@ const (
 	AlertBalanceBelow  AlertType = "balance_below"
 )
 
+// ValidAlertTypes lists all alert types accepted by the API.
 var ValidAlertTypes = []AlertType{ //nolint:gochecknoglobals
 	AlertIncomingTx,
 	AlertOutgoingTx,
@@ -56,6 +62,7 @@ func IsThresholdRequired(t AlertType) bool {
 	return false
 }
 
+// AlertRule represents a user-defined alert rule for an address.
 type AlertRule struct {
 	ID        int       `json:"id"`
 	AddressID int       `json:"address_id"` //nolint:tagliatelle
@@ -65,6 +72,7 @@ type AlertRule struct {
 	CreatedAt time.Time `json:"created_at"` //nolint:tagliatelle
 }
 
+// AlertEvent represents a fired alert event stored for history.
 type AlertEvent struct {
 	ID           int       `json:"id"`
 	AlertRuleID  int       `json:"alert_rule_id"`   //nolint:tagliatelle
@@ -74,6 +82,7 @@ type AlertEvent struct {
 	Timestamp    time.Time `json:"timestamp"`
 }
 
+// AddressCheckpoint tracks the last block checked for an address.
 type AddressCheckpoint struct {
 	AddressID        int       `json:"address_id"`         //nolint:tagliatelle
 	LastCheckedBlock int       `json:"last_checked_block"` //nolint:tagliatelle
@@ -110,29 +119,21 @@ type NormalizedTx struct {
 	Value          string  `json:"value"` // Wei as string for precision
 	BlockNumber    int     `json:"block_number"`    //nolint:tagliatelle
 	BlockTimestamp int64   `json:"block_timestamp"` //nolint:tagliatelle
-
-	// ERC-20 token transfer fields (nil for native ETH transfers)
-	TokenContract *string `json:"token_contract,omitempty"` //nolint:tagliatelle
-	TokenSymbol   *string `json:"token_symbol,omitempty"`   //nolint:tagliatelle
-	TokenDecimals *int    `json:"token_decimals,omitempty"` //nolint:tagliatelle
-	TokenValue    *string `json:"token_value,omitempty"`    //nolint:tagliatelle
-}
-
-// IsTokenTransfer returns true if this transaction represents an ERC-20 token transfer.
-func (tx NormalizedTx) IsTokenTransfer() bool {
-	return tx.TokenContract != nil
 }
 
+// Direction indicates whether a transaction is incoming or outgoing.
 type Direction string
 
 // String implements fmt.Stringer.
 func (d Direction) String() string { return string(d) }
 
+// Direction constants indicate the flow of a transaction relative to a watched address.
 const (
 	DirectionIncoming Direction = "incoming"
 	DirectionOutgoing Direction = "outgoing"
 )
 
+// ObservedTx is a NormalizedTx enriched with address and direction context.
 type ObservedTx struct {
 	NormalizedTx
 	AddressID int       `json:"address_id"` //nolint:tagliatelle

backend-go/internal/firebase/admin.go

@@ -1,3 +1,4 @@
+// Package firebase provides Firebase authentication integration.
 package firebase
 
 import (
@@ -16,6 +17,7 @@ var ( //nolint:gochecknoglobals
 	errInit    error        //nolint:gochecknoglobals
 )
 
+// Init initializes the Firebase app and auth client using the given project ID.
 func Init(projectID string) error {
 	once.Do(func() {
 		ctx := context.Background()
@@ -46,6 +48,7 @@ func Init(projectID string) error {
 	return errInit
 }
 
+// Auth returns the initialized Firebase auth client.
 func Auth() *auth.Client {
 	return authClient
 }

backend-go/internal/handlers/address.go

@@ -15,14 +15,17 @@ import (
 
 var ethAddressRe = regexp.MustCompile(`^0x[a-fA-F0-9]{40}$`)
 
+// AddressHandler handles HTTP requests for address management.
 type AddressHandler struct {
 	addresses *models.AddressModel
 }
 
+// NewAddressHandler creates a new AddressHandler.
 func NewAddressHandler(addresses *models.AddressModel) *AddressHandler {
 	return &AddressHandler{addresses: addresses}
 }
 
+// Create handles POST requests to add a new tracked address.
 func (h *AddressHandler) Create(w http.ResponseWriter, r *http.Request) {
 	userID := middleware.GetUserID(r.Context())
 
@@ -89,7 +92,7 @@ func (h *AddressHandler) List(w http.ResponseWriter, r *http.Request) {
 	writeJSON(w, http.StatusOK, addresses)
 }
 
-//  handles PATCH requests to update an address label.
+// UpdateLabel handles PATCH requests to update an address label.
 func (h *AddressHandler) UpdateLabel(w http.ResponseWriter, r *http.Request) {
 	userID := middleware.GetUserID(r.Context())
 	addressID, ok := parseIntParam(r.PathValue("addressId"))

backend-go/internal/handlers/alert_rule.go

@@ -14,17 +14,21 @@ import (
 	"github.com/kjannette/koin-ping/backend-go/internal/models"
 )
 
+// errThresholdFormat is returned when the threshold JSON cannot be decoded.
 var errThresholdFormat = errors.New("unsupported threshold format")
 
+// AlertRuleHandler handles HTTP requests for alert rule management.
 type AlertRuleHandler struct {
 	alertRules *models.AlertRuleModel
 	addresses  *models.AddressModel
 }
 
+// NewAlertRuleHandler creates a new AlertRuleHandler.
 func NewAlertRuleHandler(alertRules *models.AlertRuleModel, addresses *models.AddressModel) *AlertRuleHandler {
 	return &AlertRuleHandler{alertRules: alertRules, addresses: addresses}
 }
 
+// Create handles POST requests to create a new alert rule for an address.
 func (h *AlertRuleHandler) Create(w http.ResponseWriter, r *http.Request) {
 	userID := middleware.GetUserID(r.Context())
 	addressID, ok := parseIntParam(r.PathValue("addressId"))

backend-go/internal/protocols/ethereum/jsonrpc.go

@@ -242,132 +242,6 @@ func (j *JsonRpcEthereum) GetBalance(ctx context.Context, address string) (strin
 	return hexToDecimalString(hexBalance), nil
 }
 
-const erc20TransferTopic = "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
-
-const minTransferTopics = 3
-
-type rpcLog struct {
-	Address     string   `json:"address"`
-	Topics      []string `json:"topics"`
-	Data        string   `json:"data"`
-	BlockNumber string   `json:"blockNumber"`
-	TxHash      string   `json:"transactionHash"`
-}
-
-// GetTokenTransfers fetches ERC-20 Transfer events for a given address
-// across a block range, covering both incoming and outgoing transfers.
-func (j *JsonRpcEthereum) GetTokenTransfers(ctx context.Context, fromBlock, toBlock int, address string) ([]domain.NormalizedTx, error) {
-	paddedAddr := padAddress(address)
-	hexFrom := fmt.Sprintf("0x%x", fromBlock)
-	hexTo := fmt.Sprintf("0x%x", toBlock)
-
-	incomingLogs, err := j.getTransferLogs(ctx, hexFrom, hexTo, "", paddedAddr)
-	if err != nil {
-		return nil, fmt.Errorf("fetch incoming token transfers: %w", err)
-	}
-
-	outgoingLogs, err := j.getTransferLogs(ctx, hexFrom, hexTo, paddedAddr, "")
-	if err != nil {
-		return nil, fmt.Errorf("fetch outgoing token transfers: %w", err)
-	}
-
-	seen := make(map[string]bool)
-	var txs []domain.NormalizedTx
-
-	for _, entry := range append(incomingLogs, outgoingLogs...) {
-		key := entry.TxHash + "|" + entry.Address + "|" + entry.Data
-		if seen[key] {
-			continue
-		}
-		seen[key] = true
-
-		tx, parseErr := parseTransferLog(entry)
-		if parseErr != nil {
-			log.Printf("Skipping unparseable transfer log in tx %s: %v", entry.TxHash, parseErr)
-			continue
-		}
-		txs = append(txs, tx)
-	}
-
-	return txs, nil
-}
-
-func (j *JsonRpcEthereum) getTransferLogs(ctx context.Context, fromBlock, toBlock, fromAddr, toAddr string) ([]rpcLog, error) {
-	topics := make([]interface{}, minTransferTopics)
-	topics[0] = erc20TransferTopic
-
-	if fromAddr != "" {
-		topics[1] = fromAddr
-	}
-	if toAddr != "" {
-		topics[2] = toAddr
-	}
-
-	filter := map[string]interface{}{
-		"fromBlock": fromBlock,
-		"toBlock":   toBlock,
-		"topics":    topics,
-	}
-
-	result, err := j.callRPC(ctx, "eth_getLogs", filter)
-	if err != nil {
-		return nil, err
-	}
-
-	var logs []rpcLog
-	if err := json.Unmarshal(result, &logs); err != nil {
-		return nil, fmt.Errorf("unmarshal logs: %w", err)
-	}
-
-	return logs, nil
-}
-
-func parseTransferLog(entry rpcLog) (domain.NormalizedTx, error) {
-	if len(entry.Topics) < minTransferTopics {
-		return domain.NormalizedTx{}, fmt.Errorf("transfer log has %d topics, expected >= 3", len(entry.Topics))
-	}
-
-	from := topicToAddress(entry.Topics[1])
-	to := topicToAddress(entry.Topics[2])
-	tokenValue := hexToDecimalString(entry.Data)
-	blockNumber, _ := hexToInt(entry.BlockNumber)
-
-	contractAddr := strings.ToLower(entry.Address)
-	tokenInfo, known := LookupToken(contractAddr)
-
-	tx := domain.NormalizedTx{
-		Hash:          entry.TxHash,
-		From:          from,
-		To:            &to,
-		Value:         "0",
-		BlockNumber:   blockNumber,
-		TokenContract: &contractAddr,
-		TokenValue:    &tokenValue,
-	}
-
-	if known {
-		tx.TokenSymbol = &tokenInfo.Symbol
-		tx.TokenDecimals = &tokenInfo.Decimals
-	}
-
-	return tx, nil
-}
-
-func padAddress(addr string) string {
-	clean := strings.TrimPrefix(strings.ToLower(addr), "0x")
-	const addressHexLen = 64
-	return "0x" + strings.Repeat("0", addressHexLen-len(clean)) + clean
-}
-
-func topicToAddress(topic string) string {
-	clean := strings.TrimPrefix(topic, "0x")
-	const ethAddrLen = 40
-	if len(clean) > ethAddrLen {
-		clean = clean[len(clean)-ethAddrLen:]
-	}
-	return "0x" + strings.ToLower(clean)
-}
-
 func hexToInt(hex string) (int, error) {
 	hex = strings.TrimPrefix(hex, "0x")
 	n, ok := new(big.Int).SetString(hex, 16)

backend-go/internal/protocols/ethereum/observer.go

@@ -12,5 +12,4 @@ type EthereumObserver interface {
 	GetLatestBlockNumber(ctx context.Context) (int, error)
 	GetBlockTransactions(ctx context.Context, blockNumber int) ([]domain.NormalizedTx, error)
 	GetBalance(ctx context.Context, address string) (string, error)
-	GetTokenTransfers(ctx context.Context, fromBlock, toBlock int, address string) ([]domain.NormalizedTx, error)
 }

backend-go/internal/protocols/ethereum/tokens.go

@@ -1,34 +0,0 @@
-package ethereum
-
-import "strings"
-
-// TokenInfo holds metadata for a known ERC-20 token contract.
-type TokenInfo struct {
-	Symbol   string
-	Decimals int
-}
-
-//nolint:gochecknoglobals
-var wellKnownTokens = map[string]TokenInfo{
-	"0xdac17f958d2ee523a2206206994597c13d831ec7": {Symbol: "USDT", Decimals: 6},
-	"0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48": {Symbol: "USDC", Decimals: 6},
-	"0x6b175474e89094c44da98b954eedeac495271d0f": {Symbol: "DAI", Decimals: 18},
-	"0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2": {Symbol: "WETH", Decimals: 18},
-	"0x2260fac5e5542a773aa44fbcfedf7c193bc2c599": {Symbol: "WBTC", Decimals: 8},
-	"0x514910771af9ca656af840dff83e8264ecf986ca": {Symbol: "LINK", Decimals: 18},
-	"0x1f9840a85d5af5bf1d1762f925bdaddc4201f984": {Symbol: "UNI", Decimals: 18},
-	"0x7fc66500c84a76ad7e9c93437bfc5ac33e2ddae9": {Symbol: "AAVE", Decimals: 18},
-	"0x95ad61b0a150d79219dcf64e1e6cc01f0b64c4ce": {Symbol: "SHIB", Decimals: 18},
-	"0x6982508145454ce325ddbe47a25d4ec3d2311933": {Symbol: "PEPE", Decimals: 18},
-	"0xb8c77482e45f1f44de1745f52c74426c631bdd52": {Symbol: "BNB", Decimals: 18},
-	"0x4fabb145d64652a948d72533023f6e7a623c7c53": {Symbol: "BUSD", Decimals: 18},
-	"0x75231f58b43240c9718dd58b4967c5114342a86c": {Symbol: "OKB", Decimals: 18},
-	"0x582d872a1b094fc48f5de31d3b73f2d9be47def1": {Symbol: "TON", Decimals: 9},
-	"0x4d224452801aced8b2f0aebe155379bb5d594381": {Symbol: "APE", Decimals: 18},
-}
-
-// LookupToken returns metadata for a known token contract, if found.
-func LookupToken(contractAddress string) (TokenInfo, bool) {
-	info, ok := wellKnownTokens[strings.ToLower(contractAddress)]
-	return info, ok
-}

backend-go/internal/services/evaluator.go

@@ -281,10 +281,6 @@ func (s *EvaluatorService) sendNotification(ctx context.Context, userID, message
 }
 
 func (s *EvaluatorService) buildMessage(rule domain.AlertRule, obs domain.ObservedTx) string {
-	if obs.IsTokenTransfer() {
-		return s.buildTokenMessage(rule, obs)
-	}
-
 	switch rule.Type {
 	case domain.AlertIncomingTx:
 		ethStr, _ := wei.FormatAsEth(obs.Value, 4)
@@ -309,36 +305,3 @@ func (s *EvaluatorService) buildMessage(rule domain.AlertRule, obs domain.Observ
 		return "Alert triggered"
 	}
 }
-
-const defaultTokenDecimals = 18
-
-func (s *EvaluatorService) buildTokenMessage(rule domain.AlertRule, obs domain.ObservedTx) string {
-	symbol := "tokens"
-	if obs.TokenSymbol != nil {
-		symbol = *obs.TokenSymbol
-	}
-
-	amount := "unknown"
-	if obs.TokenValue != nil {
-		decimals := defaultTokenDecimals
-		if obs.TokenDecimals != nil {
-			decimals = *obs.TokenDecimals
-		}
-		amount = wei.FormatTokenAmount(*obs.TokenValue, decimals)
-	}
-
-	switch rule.Type {
-	case domain.AlertIncomingTx:
-		return fmt.Sprintf("Incoming transfer: %s %s received", amount, symbol)
-	case domain.AlertOutgoingTx:
-		return fmt.Sprintf("Outgoing transfer: %s %s sent", amount, symbol)
-	case domain.AlertLargeTransfer:
-		threshold := float64(0)
-		if rule.Threshold != nil {
-			threshold = *rule.Threshold
-		}
-		return fmt.Sprintf("Large token transfer: %s %s (threshold: %g)", amount, symbol, threshold)
-	default:
-		return fmt.Sprintf("Token transfer: %s %s", amount, symbol)
-	}
-}

backend-go/internal/services/observer.go

@@ -80,15 +80,6 @@ func (s *ObserverService) observeAddress(ctx context.Context, addr domain.Addres
 		}
 	}
 
-	tokenTxs, err := s.eth.GetTokenTransfers(ctx, startBlock, endBlock, addr.Address)
-	if err != nil {
-		log.Printf("Error fetching token transfers for %s: %v", addr.Address, err)
-	} else {
-		for _, tx := range tokenTxs {
-			observations = append(observations, createObservedTx(tx, addr))
-		}
-	}
-
 	if _, err := s.checkpoint.UpdateLastCheckedBlock(ctx, addr.ID, endBlock); err != nil {
 		return nil, err
 	}

backend-go/internal/wei/converter.go

@@ -98,54 +98,3 @@ func FormatAsEth(weiString string, decimals int) (string, error) {
 	}
 	return fmt.Sprintf("%.*f ETH", decimals, eth), nil
 }
-
-// FormatTokenAmount formats a raw token amount using the token's decimal places.
-// For example, 1000000 USDT (6 decimals) becomes "1".
-func FormatTokenAmount(rawValue string, tokenDecimals int) string {
-	if rawValue == "" || rawValue == "0" {
-		return "0"
-	}
-
-	n, ok := new(big.Int).SetString(rawValue, 10)
-	if !ok {
-		return "0"
-	}
-
-	divisor := new(big.Int).Exp(big.NewInt(10), big.NewInt(int64(tokenDecimals)), nil) //nolint:mnd
-	whole := new(big.Int).Div(n, divisor)
-	remainder := new(big.Int).Mod(n, divisor)
-
-	if remainder.Sign() == 0 {
-		return addThousandsSeparators(whole.String())
-	}
-
-	fracStr := fmt.Sprintf("%0*s", tokenDecimals, remainder.String())
-	fracStr = strings.TrimRight(fracStr, "0")
-	const maxDisplayDecimals = 4
-	if len(fracStr) > maxDisplayDecimals {
-		fracStr = fracStr[:maxDisplayDecimals]
-	}
-
-	return addThousandsSeparators(whole.String()) + "." + fracStr
-}
-
-func addThousandsSeparators(s string) string {
-	if len(s) <= 3 { //nolint:mnd
-		return s
-	}
-
-	var result strings.Builder
-	offset := len(s) % 3 //nolint:mnd
-	if offset > 0 {
-		result.WriteString(s[:offset])
-	}
-
-	for i := offset; i < len(s); i += 3 { //nolint:mnd
-		if result.Len() > 0 {
-			result.WriteByte(',')
-		}
-		result.WriteString(s[i : i+3]) //nolint:mnd
-	}
-
-	return result.String()
-}

frontend/src/App.jsx

@@ -3,7 +3,6 @@ import { useAuth } from "./contexts/AuthContext";
 import Navbar from "./components/Navbar";
 import Login from "./pages/Login";
 import Signup from "./pages/Signup";
-import Onboarding from "./pages/Onboarding";
 import Addresses from "./pages/Addresses";
 import Alerts from "./pages/Alerts";
 import AlertHistory from "./pages/AlertHistory";
@@ -16,7 +15,6 @@ export default function App() {
             <Routes>
                 <Route path="/login" element={<Login />} />
                 <Route path="/signup" element={<Signup />} />
-                <Route path="/onboarding" element={<Onboarding />} />
                 <Route path="*" element={<Navigate to="/login" />} />
             </Routes>
         );
@@ -29,8 +27,7 @@ export default function App() {
                 <Route path="/" element={<Addresses />} />
                 <Route path="/addresses" element={<Addresses />} />
                 <Route path="/alerts" element={<Alerts />} />
-                <Route path="/alertevents" element={<AlertHistory />} />
-                <Route path="/onboarding" element={<Onboarding />} />
+                <Route path="/history" element={<AlertHistory />} />
                 <Route path="*" element={<Navigate to="/addresses" />} />
             </Routes>
         </div>

frontend/src/components/AddressForm.jsx

@@ -37,7 +37,7 @@ export default function AddressForm({ onSubmit }) {
                 placeholder="Treasury, Cold Wallet, etc."
             />
 
-            <Button type="submit" disabled={!canSubmit} className="mt-md">
+            <Button type="submit" disabled={!canSubmit}>
                 Add Address
             </Button>
         </form>

frontend/src/components/AlertForm.css

@@ -1,7 +0,0 @@
-.alert-form__options {
-  margin-bottom: 1rem;
-}
-
-.alert-form__radio {
-  display: block;
-}

frontend/src/components/AlertForm.jsx

@@ -1,7 +1,6 @@
 import { useState } from "react";
 import Input from "./Input";
 import Button from "./Button";
-import "./AlertForm.css";
 
 const ALERT_TYPES = [
     { value: "incoming_tx", label: "Incoming transaction" },
@@ -37,9 +36,9 @@ export default function AlertForm({ onSubmit }) {
 
     return (
         <form onSubmit={handleSubmit}>
-            <div className="alert-form__options">
+            <div style={{ marginBottom: "1rem" }}>
                 {ALERT_TYPES.map((opt) => (
-                    <label key={opt.value} className="alert-form__radio">
+                    <label key={opt.value} style={{ display: "block" }}>
                         <input
                             type="radio"
                             name="alertType"

frontend/src/components/Button.css

@@ -1,14 +0,0 @@
-.btn {
-  padding: 0.5rem 1rem;
-  font-size: 1rem;
-  border: none;
-  border-radius: var(--radius-md);
-  cursor: pointer;
-  color: var(--color-text);
-  transition: opacity 0.15s ease;
-}
-
-.btn:disabled {
-  opacity: 0.6;
-  cursor: not-allowed;
-}

frontend/src/components/Button.jsx

@@ -1,19 +1,20 @@
-import "./Button.css";
-
 export default function Button({
     children,
     onClick,
     disabled = false,
     type = "button",
-    variant = "primary",
-    className = "",
 }) {
     return (
         <button
             type={type}
             onClick={onClick}
             disabled={disabled}
-            className={`btn btn--${variant} ${className}`}
+            style={{
+                padding: "0.5rem 1rem",
+                fontSize: "1rem",
+                cursor: disabled ? "not-allowed" : "pointer",
+                opacity: disabled ? 0.6 : 1,
+            }}
         >
             {children}
         </button>

frontend/src/components/Input.css

@@ -1,21 +0,0 @@
-.input__label {
-  display: block;
-  margin-bottom: 0.4rem;
-  font-size: 0.9rem;
-}
-
-.input__control {
-  width: 100%;
-  padding: 0.5rem;
-  font-size: 1rem;
-  background-color: var(--color-bg-elevated);
-  border: 1px solid var(--color-border);
-  border-radius: var(--radius-md);
-  color: var(--color-text);
-}
-
-.input__control:focus {
-  outline: none;
-  border-color: var(--color-primary);
-  box-shadow: 0 0 0 2px rgba(0, 102, 204, 0.25);
-}

frontend/src/components/Input.jsx

@@ -1,5 +1,3 @@
-import "./Input.css";
-
 export default function Input({
     label,
     type = "text",
@@ -9,12 +7,12 @@ export default function Input({
     step,
     min,
     disabled = false,
-    required = false,
-    className = "",
 }) {
     return (
-        <label className={`form-field ${className}`}>
-            <div className="input__label">{label}</div>
+        <label style={{ display: "block", marginBottom: "1rem" }}>
+            <div style={{ marginBottom: "0.25rem", fontSize: "0.9rem" }}>
+                {label}
+            </div>
             <input
                 type={type}
                 value={value}
@@ -22,9 +20,12 @@ export default function Input({
                 step={step}
                 min={min}
                 disabled={disabled}
-                required={required}
                 onChange={(e) => onChange(e.target.value)}
-                className="input__control"
+                style={{
+                    width: "100%",
+                    padding: "0.5rem",
+                    fontSize: "1rem",
+                }}
             />
         </label>
     );

frontend/src/components/Navbar.css

@@ -1,56 +0,0 @@
-.navbar {
-  display: flex;
-  justify-content: space-between;
-  align-items: center;
-  padding: 1rem 2rem;
-  margin-bottom: 1.5rem;
-  background-color: var(--color-bg);
-  border-bottom: 1px solid var(--color-border-light);
-}
-
-.navbar__brand {
-  font-weight: 700;
-  font-size: 1.4rem;
-  color: var(--color-brand);
-  margin-right: 2rem;
-  letter-spacing: 0.5px;
-}
-
-.navbar__links {
-  display: flex;
-  gap: 0.25rem;
-}
-
-.navbar__link {
-  padding: 0.5rem 1.25rem;
-  border-radius: var(--radius-lg);
-  text-decoration: none;
-  font-size: 1.425rem;
-  font-weight: 200;
-  color: var(--color-text-subtle);
-  background-color: transparent;
-  transition: all 0.15s ease;
-}
-
-.navbar__link--active {
-  font-weight: 600;
-  color: var(--color-text);
-  background-color: var(--color-bg-card);
-}
-
-.navbar__user {
-  font-size: 1.275rem;
-  color: #777;
-}
-
-.navbar__logout {
-  padding: 0.4rem 1rem;
-  font-size: 1.275rem;
-  font-weight: 400;
-  background-color: transparent;
-  color: var(--color-text-subtle);
-  border: 1px solid var(--color-border);
-  border-radius: var(--radius-lg);
-  cursor: pointer;
-  transition: all 0.15s ease;
-}

frontend/src/components/Navbar.jsx

@@ -1,11 +1,10 @@
 import { Link, useLocation } from "react-router-dom";
 import { useAuth } from "../contexts/AuthContext";
-import "./Navbar.css";
 
 const navLinks = [
   { to: "/addresses", label: "Addresses" },
   { to: "/alerts", label: "Configure Alerts" },
-  { to: "/alertevents", label: "Alert Events" },
+  { to: "/history", label: "Alert History" },
 ];
 
 export default function Navbar() {
@@ -15,17 +14,43 @@ export default function Navbar() {
   if (!currentUser) return null;
 
   return (
-    <nav className="navbar">
-      <div className="flex flex--center gap-sm">
-        <span className="navbar__brand">Koin Ping</span>
-        <div className="navbar__links">
+    <nav style={{
+      display: "flex",
+      justifyContent: "space-between",
+      alignItems: "center",
+      padding: "1rem 2rem",
+      marginBottom: "1.5rem",
+      backgroundColor: "#1a1a1a",
+      borderBottom: "1px solid #333",
+    }}>
+      <div style={{ display: "flex", alignItems: "center", gap: "0.5rem" }}>
+        <span style={{
+          fontWeight: 700,
+          fontSize: "1.1rem",
+          color: "#fff",
+          marginRight: "2rem",
+          letterSpacing: "0.5px",
+        }}>
+          Koin Ping
+        </span>
+
+        <div style={{ display: "flex", gap: "0.25rem" }}>
           {navLinks.map(({ to, label }) => {
             const isActive = location.pathname === to;
             return (
               <Link
                 key={to}
                 to={to}
-                className={`navbar__link ${isActive ? "navbar__link--active" : ""}`}
+                style={{
+                  padding: "0.5rem 1.25rem",
+                  borderRadius: "6px",
+                  textDecoration: "none",
+                  fontSize: "1.425rem",
+                  fontWeight: isActive ? 600 : 200,
+                  color: isActive ? "#fff" : "#999",
+                  backgroundColor: isActive ? "#333" : "transparent",
+                  transition: "all 0.15s ease",
+                }}
               >
                 {label}
               </Link>
@@ -34,9 +59,24 @@ export default function Navbar() {
         </div>
       </div>
 
-      <div className="flex flex--center gap-lg">
-        <span className="navbar__user">{currentUser.email}</span>
-        <button onClick={logout} className="navbar__logout">
+      <div style={{ display: "flex", alignItems: "center", gap: "1.25rem" }}>
+        <span style={{ fontSize: "1.275rem", color: "#777" }}>
+          {currentUser.email}
+        </span>
+        <button
+          onClick={logout}
+          style={{
+            padding: "0.4rem 1rem",
+            fontSize: "1.275rem",
+            fontWeight: 400,
+            backgroundColor: "transparent",
+            color: "#999",
+            border: "1px solid #444",
+            borderRadius: "6px",
+            cursor: "pointer",
+            transition: "all 0.15s ease",
+          }}
+        >
           Logout
         </button>
       </div>

frontend/src/index.css

@@ -1,43 +1,5 @@
 @import url('https://fonts.googleapis.com/css2?family=Nunito:ital,wght@0,200..1000;1,200..1000&display=swap');
 
-:root {
-  --color-primary: #0066cc;
-  --color-primary-hover: #0077ee;
-  --color-brand: #e62525;
-  --color-success: #28a745;
-  --color-success-text: #00ff00;
-  --color-success-bg: #00ff0020;
-  --color-success-border: #00ff00;
-  --color-error: #ff6666;
-  --color-error-bg: #ff000020;
-  --color-error-border: #ff0000;
-  --color-warning: #ffcc44;
-  --color-warning-bg: #3a2e00;
-  --color-warning-border: #aa7700;
-  --color-danger: #cc6666;
-  --color-danger-border: #884444;
-
-  --color-bg: #1a1a1a;
-  --color-bg-elevated: #242424;
-  --color-bg-card: #333;
-  --color-bg-section: #2a2a2a;
-
-  --color-border: #444;
-  --color-border-light: #333;
-  --color-border-section: #3a3a3a;
-
-  --color-text: white;
-  --color-text-muted: #b3b3b3;
-  --color-text-dimmed: #808080;
-  --color-text-subtle: #999;
-  --color-text-label: #ccc;
-
-  --radius-sm: 3px;
-  --radius-md: 4px;
-  --radius-lg: 6px;
-  --radius-xl: 8px;
-}
-
 *,
 *::before,
 *::after {
@@ -59,300 +21,13 @@ body {
   -moz-osx-font-smoothing: grayscale;
 }
 
-h1,
-h2,
-h3,
-h4,
-h5,
-h6 {
+h1, h2, h3, h4, h5, h6 {
   font-family: 'Nunito', sans-serif;
   font-weight: 200;
 }
 
-input,
-select,
-textarea,
-button {
+input, select, textarea, button {
   font-family: 'Nunito', sans-serif;
   font-size: 1rem;
   font-weight: 200;
 }
-
-/* ── Page Layouts ─────────────────────────────────────────── */
-
-.page {
-  max-width: 800px;
-  margin: 0 auto;
-  padding: 2rem;
-}
-
-.page--wide {
-  max-width: 1400px;
-}
-
-/* ── Cards & Sections ─────────────────────────────────────── */
-
-.card {
-  padding: 1rem;
-  background-color: var(--color-bg-card);
-  border: 1px solid var(--color-border);
-  border-radius: var(--radius-md);
-}
-
-.section {
-  margin-bottom: 1.5rem;
-  padding: 1rem;
-  background-color: var(--color-bg-section);
-  border-radius: var(--radius-lg);
-  border: 1px solid var(--color-border-section);
-}
-
-/* ── Form Controls ────────────────────────────────────────── */
-
-.form-field {
-  margin-bottom: 1.25rem;
-}
-
-.form-field--last {
-  margin-bottom: 1.75rem;
-}
-
-.form-label {
-  display: block;
-  margin-bottom: 0.25rem;
-  font-size: 0.9rem;
-  color: var(--color-text-label);
-}
-
-.form-control {
-  width: 100%;
-  padding: 0.5rem;
-  font-size: 1rem;
-  background-color: var(--color-bg-elevated);
-  border: 1px solid var(--color-border);
-  border-radius: var(--radius-md);
-  color: var(--color-text);
-}
-
-.form-control:focus {
-  outline: none;
-  border-color: var(--color-primary);
-  box-shadow: 0 0 0 2px rgba(0, 102, 204, 0.25);
-}
-
-.form-control--mono {
-  font-family: monospace;
-}
-
-.form-select {
-  width: 100%;
-  padding: 0.5rem;
-  font-size: 1rem;
-  background-color: var(--color-bg);
-  border: 1px solid var(--color-border);
-  border-radius: var(--radius-md);
-  color: var(--color-text);
-}
-
-/* ── Buttons ──────────────────────────────────────────────── */
-
-.btn {
-  padding: 0.5rem 1rem;
-  font-size: 1rem;
-  border: none;
-  border-radius: var(--radius-md);
-  cursor: pointer;
-  color: var(--color-text);
-  transition: opacity 0.15s ease;
-}
-
-.btn:disabled {
-  opacity: 0.6;
-  cursor: not-allowed;
-}
-
-.btn--primary {
-  background-color: var(--color-primary);
-}
-
-.btn--success {
-  background-color: var(--color-success);
-}
-
-.btn--secondary {
-  background-color: #6c757d;
-}
-
-.btn--danger {
-  background-color: transparent;
-  border: 1px solid var(--color-danger-border);
-  color: var(--color-danger);
-}
-
-.btn--ghost {
-  background-color: transparent;
-  border: 1px solid var(--color-border);
-  color: var(--color-text-subtle);
-}
-
-.btn--sm {
-  padding: 0.25rem 0.6rem;
-  font-size: 0.85rem;
-}
-
-.btn--lg {
-  padding: 0.75rem 1.5rem;
-}
-
-/* ── Feedback Alerts ──────────────────────────────────────── */
-
-.alert {
-  padding: 0.75rem;
-  margin-bottom: 1rem;
-  border-radius: var(--radius-md);
-}
-
-.alert--error {
-  background-color: var(--color-error-bg);
-  border: 1px solid var(--color-error-border);
-  color: var(--color-error);
-}
-
-.alert--success {
-  background-color: var(--color-success-bg);
-  border: 1px solid var(--color-success-border);
-  color: var(--color-success-text);
-}
-
-.alert--warning {
-  background-color: var(--color-warning-bg);
-  border: 1px solid var(--color-warning-border);
-  color: var(--color-warning);
-}
-
-/* ── Lists ────────────────────────────────────────────────── */
-
-.list-unstyled {
-  list-style: none;
-  padding: 0;
-}
-
-.list-item--card {
-  padding: 1rem;
-  margin-bottom: 0.5rem;
-  border: 1px solid var(--color-border);
-  border-radius: var(--radius-md);
-  background-color: var(--color-bg-card);
-}
-
-/* ── Typography Helpers ───────────────────────────────────── */
-
-.text-muted {
-  color: var(--color-text-muted);
-}
-
-.text-dimmed {
-  color: var(--color-text-dimmed);
-}
-
-.text-mono {
-  font-family: monospace;
-}
-
-.text-bold {
-  font-weight: bold;
-}
-
-.text-error {
-  color: red;
-}
-
-.text-sm {
-  font-size: 1.035rem;
-}
-
-.text-xs {
-  font-size: 0.978rem;
-}
-
-.help-link {
-  color: var(--color-primary);
-  font-size: 0.85rem;
-}
-
-/* ── Flex Utilities ───────────────────────────────────────── */
-
-.flex {
-  display: flex;
-}
-
-.flex--between {
-  justify-content: space-between;
-}
-
-.flex--center {
-  align-items: center;
-}
-
-.flex--column {
-  flex-direction: column;
-}
-
-.flex--wrap {
-  flex-wrap: wrap;
-}
-
-.gap-xs {
-  gap: 0.25rem;
-}
-
-.gap-sm {
-  gap: 0.5rem;
-}
-
-.gap-md {
-  gap: 0.75rem;
-}
-
-.gap-lg {
-  gap: 1rem;
-}
-
-/* ── Spacing Helpers ──────────────────────────────────────── */
-
-.mb-0 {
-  margin-bottom: 0;
-}
-
-.mb-sm {
-  margin-bottom: 0.5rem;
-}
-
-.mb-md {
-  margin-bottom: 1rem;
-}
-
-.mb-lg {
-  margin-bottom: 1.5rem;
-}
-
-.mb-xl {
-  margin-bottom: 2rem;
-}
-
-.mt-0 {
-  margin-top: 0;
-}
-
-.mt-md {
-  margin-top: 1rem;
-}
-
-.text-white {
-  color: white;
-}
-
-.text-white-sm {
-  color: white;
-  font-size: 0.85rem;
-}

frontend/src/pages/Addresses.css

@@ -1,30 +0,0 @@
-.address__edit-input {
-  background: var(--color-border);
-  border: 1px solid #666;
-  border-radius: var(--radius-sm);
-  color: var(--color-text);
-  padding: 0.25rem 0.5rem;
-  font-size: 0.9rem;
-}
-
-.address__edit-link {
-  cursor: pointer;
-  background: transparent;
-  border: none;
-  color: #6699cc;
-  font-size: 0.8rem;
-  padding: 0;
-  text-decoration: underline;
-}
-
-.address__remove {
-  cursor: pointer;
-  background: transparent;
-  border: 1px solid var(--color-danger-border);
-  color: var(--color-danger);
-  border-radius: var(--radius-sm);
-  padding: 0.3rem 0.7rem;
-  font-size: 0.85rem;
-  margin-left: 1rem;
-  flex-shrink: 0;
-}

frontend/src/pages/Addresses.jsx

@@ -1,7 +1,6 @@
 import { useState, useEffect } from "react";
 import AddressForm from "../components/AddressForm";
 import { getAddresses, createAddress, deleteAddress, updateAddress } from "../api/addresses";
-import "./Addresses.css";
 
 export default function Addresses() {
     const [addresses, setAddresses] = useState([]);
@@ -10,6 +9,7 @@ export default function Addresses() {
     const [editingId, setEditingId] = useState(null);
     const [editLabel, setEditLabel] = useState("");
 
+    // Load addresses on mount
     useEffect(() => {
         async function fetchAddresses() {
             try {
@@ -27,6 +27,7 @@ export default function Addresses() {
         fetchAddresses();
     }, []);
 
+    // Handle new address submission
     async function handleAddressSubmit(data) {
         try {
             const newAddress = await createAddress(data);
@@ -77,35 +78,51 @@ export default function Addresses() {
     }
 
     return (
-        <div className="page">
-            <h1>Add Addresses to Track</h1>
+        <div style={{ maxWidth: "800px", margin: "0 auto", padding: "2rem" }}>
+            <h1>Tracked Addresses</h1>
 
-            <div className="mb-xl">
+            <div style={{ marginBottom: "2rem" }}>
                 <AddressForm onSubmit={handleAddressSubmit} />
             </div>
 
             <div>
-                <h2>Existing Tracked Addresses</h2>
+                <h2>Existing Addresses</h2>
                 {loading && <p>Loading addresses...</p>}
-                {error && <p className="text-error">Error: {error}</p>}
+                {error && <p style={{ color: "red" }}>Error: {error}</p>}
                 {!loading && !error && addresses.length === 0 && (
-                    <p className="text-dimmed">
+                    <p style={{ color: "#808080" }}>
                         No addresses tracked yet. Add one above to get started.
                     </p>
                 )}
                 {addresses.length > 0 && (
-                    <ul className="list-unstyled">
+                    <ul style={{ listStyle: "none", padding: 0 }}>
                         {addresses.map((addr, index) => (
-                            <li key={addr.id || index} className="list-item--card">
-                                <div className="flex flex--between flex--center">
-                                    <div>
+                            <li
+                                key={addr.id || index}
+                                style={{
+                                    padding: "1rem",
+                                    marginBottom: "0.5rem",
+                                    border: "1px solid #444",
+                                    borderRadius: "4px",
+                                    backgroundColor: "#333",
+                                }}
+                            >
+                                <div style={{ display: "flex", justifyContent: "space-between", alignItems: "center" }}>
+                                    <div style={{ flex: 1 }}>
                                         {editingId === addr.id ? (
-                                            <div className="flex flex--center gap-sm mb-sm">
+                                            <div style={{ display: "flex", gap: "0.5rem", alignItems: "center", marginBottom: "0.25rem" }}>
                                                 <input
                                                     value={editLabel}
                                                     onChange={(e) => setEditLabel(e.target.value)}
                                                     placeholder="Label (optional)"
-                                                    className="address__edit-input"
+                                                    style={{
+                                                        background: "#444",
+                                                        border: "1px solid #666",
+                                                        borderRadius: "3px",
+                                                        color: "#fff",
+                                                        padding: "0.25rem 0.5rem",
+                                                        fontSize: "0.9rem",
+                                                    }}
                                                     onKeyDown={(e) => {
                                                         if (e.key === "Enter") handleEditSave(addr.id);
                                                         if (e.key === "Escape") handleEditCancel();
@@ -114,37 +131,61 @@ export default function Addresses() {
                                                 />
                                                 <button
                                                     onClick={() => handleEditSave(addr.id)}
-                                                    className="btn btn--primary btn--sm"
+                                                    style={{ cursor: "pointer", padding: "0.25rem 0.6rem", fontSize: "0.85rem" }}
                                                 >
                                                     Save
                                                 </button>
                                                 <button
                                                     onClick={handleEditCancel}
-                                                    className="btn btn--ghost btn--sm"
+                                                    style={{ cursor: "pointer", padding: "0.25rem 0.6rem", fontSize: "0.85rem", background: "transparent", color: "#aaa", border: "1px solid #555" }}
                                                 >
                                                     Cancel
                                                 </button>
                                             </div>
                                         ) : (
-                                            <div className="flex flex--center gap-sm mb-sm">
-                                                <span className="text-bold">
+                                            <div style={{ display: "flex", alignItems: "center", gap: "0.5rem", marginBottom: "0.25rem" }}>
+                                                <span style={{ fontWeight: "bold" }}>
                                                     {addr.label || "Unlabeled"}
                                                 </span>
                                                 <button
                                                     onClick={() => handleEditStart(addr)}
-                                                    className="address__edit-link"
+                                                    style={{
+                                                        cursor: "pointer",
+                                                        background: "transparent",
+                                                        border: "none",
+                                                        color: "#6699cc",
+                                                        fontSize: "0.8rem",
+                                                        padding: "0",
+                                                        textDecoration: "underline",
+                                                    }}
                                                 >
                                                     Edit
                                                 </button>
                                             </div>
                                         )}
-                                        <div className="text-mono text-sm text-muted">
+                                        <div
+                                            style={{
+                                                fontFamily: "monospace",
+                                                fontSize: "1.035rem",
+                                                color: "#b3b3b3",
+                                            }}
+                                        >
                                             {addr.address}
                                         </div>
                                     </div>
                                     <button
                                         onClick={() => handleDelete(addr.id, addr.label)}
-                                        className="address__remove"
+                                        style={{
+                                            cursor: "pointer",
+                                            background: "transparent",
+                                            border: "1px solid #884444",
+                                            color: "#cc6666",
+                                            borderRadius: "3px",
+                                            padding: "0.3rem 0.7rem",
+                                            fontSize: "0.85rem",
+                                            marginLeft: "1rem",
+                                            flexShrink: 0,
+                                        }}
                                     >
                                         Remove
                                     </button>

frontend/src/pages/AlertHistory.css

@@ -1,7 +0,0 @@
-.alert-history__item {
-  padding: 1rem;
-  margin-bottom: 0.75rem;
-  border: 1px solid var(--color-border);
-  border-radius: var(--radius-md);
-  background-color: var(--color-bg-card);
-}

frontend/src/pages/AlertHistory.jsx

@@ -1,12 +1,12 @@
 import { useState, useEffect } from "react";
 import { getAlertEvents } from "../api/alertEvents";
-import "./AlertHistory.css";
 
 export default function AlertHistory() {
     const [alertEvents, setAlertEvents] = useState([]);
     const [loading, setLoading] = useState(true);
     const [error, setError] = useState(null);
 
+    // Fetch alert events on mount
     useEffect(() => {
         async function fetchAlertEvents() {
             try {
@@ -25,32 +25,49 @@ export default function AlertHistory() {
     }, []);
 
     if (loading) {
-        return <div className="page">Loading...</div>;
+        return <div style={{ padding: "2rem" }}>Loading...</div>;
     }
 
     if (error) {
         return (
-            <div className="page text-error">Error: {error}</div>
+            <div style={{ padding: "2rem", color: "red" }}>Error: {error}</div>
         );
     }
 
     return (
-        <div className="page">
-            <h1>Recent Alert Events</h1>
+        <div style={{ maxWidth: "800px", margin: "0 auto", padding: "2rem" }}>
+            <h1>Recent Alerts</h1>
 
             {alertEvents.length === 0 ? (
-                <p className="text-dimmed">No alerts yet</p>
+                <p style={{ color: "#808080" }}>No alerts yet</p>
             ) : (
-                <ul className="list-unstyled">
+                <ul style={{ listStyle: "none", padding: 0 }}>
                     {alertEvents.map((event) => (
-                        <li key={event.id} className="alert-history__item">
-                            <div className="mb-sm">{event.message}</div>
+                        <li
+                            key={event.id}
+                            style={{
+                                padding: "1rem",
+                                marginBottom: "0.75rem",
+                                border: "1px solid #444",
+                                borderRadius: "4px",
+                                backgroundColor: "#333",
+                            }}
+                        >
+                            <div style={{ marginBottom: "0.5rem" }}>
+                                {event.message}
+                            </div>
                             {event.address_label && (
-                                <div className="text-sm text-dimmed">
+                                <div
+                                    style={{
+                                    fontSize: "1.035rem",
+                                    color: "#808080",
+                                        marginBottom: "0.25rem",
+                                    }}
+                                >
                                     Address: {event.address_label}
                                 </div>
                             )}
-                            <small className="text-muted">
+                            <small style={{ color: "#b3b3b3" }}>
                                 {formatTimestamp(event.timestamp)}
                             </small>
                         </li>
@@ -61,6 +78,7 @@ export default function AlertHistory() {
     );
 }
 
+// Helper to format timestamp for display
 function formatTimestamp(timestamp) {
     const date = new Date(timestamp);
     return date.toLocaleString();

frontend/src/pages/Alerts.css

@@ -1,63 +0,0 @@
-.alerts-grid {
-  display: grid;
-  grid-template-columns: 1fr 1fr;
-  gap: 2rem;
-  align-items: start;
-}
-
-.alerts__address-info {
-  padding: 1rem;
-  margin-bottom: 2rem;
-  background-color: var(--color-bg-card);
-  border-radius: var(--radius-md);
-  border: 1px solid var(--color-border);
-}
-
-.alerts__toggle-panel {
-  margin-bottom: 1.5rem;
-  padding: 1rem;
-  background-color: var(--color-bg-card);
-  border-radius: var(--radius-md);
-}
-
-.alerts__toggle-label {
-  display: flex;
-  align-items: center;
-  cursor: pointer;
-}
-
-.alerts__toggle-checkbox {
-  margin-right: 0.5rem;
-  width: 18px;
-  height: 18px;
-}
-
-.alerts__toggle-hint {
-  font-size: 0.978rem;
-  color: var(--color-text-dimmed);
-  margin-top: 0.5rem;
-  margin-left: 26px;
-}
-
-.alerts__rule {
-  padding: 1rem;
-  margin-bottom: 0.5rem;
-  border: 1px solid var(--color-border);
-  border-radius: var(--radius-md);
-  background-color: var(--color-bg-card);
-}
-
-.alerts__rule--disabled {
-  opacity: 0.6;
-}
-
-.alerts__email-buttons {
-  display: flex;
-  gap: 0.5rem;
-}
-
-.alerts__save-test {
-  display: flex;
-  gap: 0.75rem;
-  margin-top: 1rem;
-}

frontend/src/pages/Alerts.jsx

@@ -1,7 +1,6 @@
 import { useState, useEffect } from "react";
 import AlertForm from "../components/AlertForm";
 import Button from "../components/Button";
-import Input from "../components/Input";
 import { getAddresses } from "../api/addresses";
 import {
     getAlerts,
@@ -16,7 +15,35 @@ import {
     setupEmail,
     sendEmailDigest,
 } from "../api/notificationConfig";
-import "./Alerts.css";
+
+const inputStyle = {
+    width: "100%",
+    padding: "0.5rem",
+    fontSize: "0.9rem",
+    backgroundColor: "#1a1a1a",
+    border: "1px solid #444",
+    borderRadius: "4px",
+    color: "white",
+    fontFamily: "monospace",
+    boxSizing: "border-box",
+};
+
+const labelStyle = {
+    display: "block",
+    marginBottom: "0.25rem",
+    fontSize: "0.9rem",
+    color: "#ccc",
+};
+
+const helpLinkStyle = { color: "#0066cc", fontSize: "0.85rem" };
+
+const sectionStyle = {
+    marginBottom: "1.5rem",
+    padding: "1rem",
+    backgroundColor: "#2a2a2a",
+    borderRadius: "6px",
+    border: "1px solid #3a3a3a",
+};
 
 export default function Alerts() {
     const [addresses, setAddresses] = useState([]);
@@ -25,6 +52,7 @@ export default function Alerts() {
     const [loading, setLoading] = useState(true);
     const [error, setError] = useState(null);
 
+    // Notification config state
     const [notificationEnabled, setNotificationEnabled] = useState(false);
     const [discordWebhookUrl, setDiscordWebhookUrl] = useState("");
     const [telegramBotToken, setTelegramBotToken] = useState("");
@@ -245,28 +273,42 @@ export default function Alerts() {
     const selectedAddress = addresses.find((a) => a.id === selectedAddressId);
 
     if (loading) {
-        return <div className="page">Loading addresses...</div>;
+        return <div style={{ padding: "2rem" }}>Loading addresses...</div>;
     }
 
     if (addresses.length === 0) {
         return (
-            <div className="page">
-                <p>No addresses tracked yet. Add an address first to create alerts.</p>
+            <div style={{ padding: "2rem" }}>
+                <p>
+                    No addresses tracked yet. Add an address first to create
+                    alerts.
+                </p>
             </div>
         );
     }
 
     return (
-        <div className="page page--wide">
-            <h1 className="mb-xl">Alert Rules & Notifications</h1>
+        <div style={{ maxWidth: "1400px", margin: "0 auto", padding: "2rem" }}>
+            <h1 style={{ marginBottom: "2rem" }}>
+                Alert Rules & Notifications
+            </h1>
 
-            <div className="alerts-grid">
+            <div
+                style={{
+                    display: "grid",
+                    gridTemplateColumns: "1fr 1fr",
+                    gap: "2rem",
+                    alignItems: "start",
+                }}
+            >
                 {/* LEFT COLUMN: Alert Rules */}
                 <div>
-                    <h2 className="mt-0">Alert Rules</h2>
+                    <h2 style={{ marginTop: 0 }}>Alert Rules</h2>
 
-                    <div className="mb-xl">
-                        <label className="form-label mb-sm">
+                    <div style={{ marginBottom: "2rem" }}>
+                        <label
+                            style={{ display: "block", marginBottom: "0.5rem" }}
+                        >
                             <strong>Select Address:</strong>
                         </label>
                         <select
@@ -274,7 +316,15 @@ export default function Alerts() {
                             onChange={(e) =>
                                 setSelectedAddressId(Number(e.target.value))
                             }
-                            className="form-select"
+                            style={{
+                                width: "100%",
+                                padding: "0.5rem",
+                                fontSize: "1rem",
+                                backgroundColor: "#1a1a1a",
+                                border: "1px solid #444",
+                                borderRadius: "4px",
+                                color: "white",
+                            }}
                         >
                             {addresses.map((addr) => (
                                 <option key={addr.id} value={addr.id}>
@@ -286,19 +336,43 @@ export default function Alerts() {
 
                     {selectedAddress && (
                         <>
-                            <div className="alerts__address-info">
-                                <div className="text-sm text-muted">
+                            <div
+                                style={{
+                                    padding: "1rem",
+                                    marginBottom: "2rem",
+                                    backgroundColor: "#333",
+                                    borderRadius: "4px",
+                                    border: "1px solid #444",
+                                }}
+                            >
+                                <div
+                                    style={{
+                                        fontSize: "1.035rem",
+                                        color: "#b3b3b3",
+                                    }}
+                                >
                                     Managing alerts for:
                                 </div>
-                                <div className="text-bold">
+                                <div
+                                    style={{
+                                        fontWeight: "bold",
+                                        marginTop: "0.25rem",
+                                    }}
+                                >
                                     {selectedAddress.label || "Unlabeled"}
                                 </div>
-                                <div className="text-mono text-sm text-muted">
+                                <div
+                                    style={{
+                                        fontFamily: "monospace",
+                                        fontSize: "1.035rem",
+                                        color: "#b3b3b3",
+                                    }}
+                                >
                                     {selectedAddress.address}
                                 </div>
                             </div>
 
-                            <div className="mb-xl">
+                            <div style={{ marginBottom: "2rem" }}>
                                 <h3>Create New Alert</h3>
                                 <AlertForm onSubmit={handleAlertSubmit} />
                             </div>
@@ -306,43 +380,112 @@ export default function Alerts() {
                             <div>
                                 <h3>Active Alert Rules</h3>
                                 {error && (
-                                    <p className="text-error">Error: {error}</p>
+                                    <p style={{ color: "red" }}>
+                                        Error: {error}
+                                    </p>
                                 )}
                                 {alerts.length === 0 ? (
-                                    <p className="text-dimmed">
-                                        No alert rules defined yet. Create one above.
+                                    <p style={{ color: "#666" }}>
+                                        No alert rules defined yet. Create one
+                                        above.
                                     </p>
                                 ) : (
-                                    <ul className="list-unstyled">
+                                    <ul
+                                        style={{
+                                            listStyle: "none",
+                                            padding: 0,
+                                        }}
+                                    >
                                         {alerts.map((alert) => (
                                             <li
                                                 key={alert.id}
-                                                className={`alerts__rule ${!alert.enabled ? "alerts__rule--disabled" : ""}`}
+                                                style={{
+                                                    padding: "1rem",
+                                                    marginBottom: "0.5rem",
+                                                    border: "1px solid #444",
+                                                    borderRadius: "4px",
+                                                    backgroundColor: "#333",
+                                                    opacity: alert.enabled
+                                                        ? 1
+                                                        : 0.6,
+                                                }}
                                             >
-                                                <div className="flex flex--between">
-                                                    <div>
-                                                        <div className="text-bold mb-sm">
-                                                            {formatAlertType(alert.type)}
+                                                <div
+                                                    style={{
+                                                        display: "flex",
+                                                        justifyContent:
+                                                            "space-between",
+                                                        alignItems:
+                                                            "flex-start",
+                                                    }}
+                                                >
+                                                    <div style={{ flex: 1 }}>
+                                                        <div
+                                                            style={{
+                                                                fontWeight:
+                                                                    "bold",
+                                                                marginBottom:
+                                                                    "0.25rem",
+                                                            }}
+                                                        >
+                                                            {formatAlertType(
+                                                                alert.type,
+                                                            )}
                                                         </div>
                                                         {alert.threshold && (
-                                                            <div className="text-sm text-muted">
-                                                                Threshold: {alert.threshold} ETH
+                                                            <div
+                                                                style={{
+                                                                    fontSize:
+                                                                        "1.035rem",
+                                                                    color: "#b3b3b3",
+                                                                }}
+                                                            >
+                                                                Threshold:{" "}
+                                                                {
+                                                                    alert.threshold
+                                                                }{" "}
+                                                                ETH
                                                             </div>
                                                         )}
-                                                        <div className="text-xs text-dimmed">
-                                                            Status: {alert.enabled ? "Enabled" : "Disabled"}
+                                                        <div
+                                                            style={{
+                                                                fontSize:
+                                                                    "0.978rem",
+                                                                color: "#808080",
+                                                                marginTop:
+                                                                    "0.25rem",
+                                                            }}
+                                                        >
+                                                            Status:{" "}
+                                                            {alert.enabled
+                                                                ? "Enabled"
+                                                                : "Disabled"}
                                                         </div>
                                                     </div>
-                                                    <div className="flex flex--center gap-sm">
+                                                    <div
+                                                        style={{
+                                                            display: "flex",
+                                                            gap: "0.5rem",
+                                                        }}
+                                                    >
                                                         <Button
                                                             onClick={() =>
-                                                                handleToggleAlert(alert.id, alert.enabled)
+                                                                handleToggleAlert(
+                                                                    alert.id,
+                                                                    alert.enabled,
+                                                                )
                                                             }
                                                         >
-                                                            {alert.enabled ? "Disable" : "Enable"}
+                                                            {alert.enabled
+                                                                ? "Disable"
+                                                                : "Enable"}
                                                         </Button>
                                                         <Button
-                                                            onClick={() => handleDeleteAlert(alert.id)}
+                                                            onClick={() =>
+                                                                handleDeleteAlert(
+                                                                    alert.id,
+                                                                )
+                                                            }
                                                         >
                                                             Delete
                                                         </Button>
@@ -359,152 +502,329 @@ export default function Alerts() {
 
                 {/* RIGHT COLUMN: Notification Settings */}
                 <div>
-                    <h2 className="mt-0">Notification Settings</h2>
+                    <h2 style={{ marginTop: 0 }}>Notification Settings</h2>
 
                     {notificationSuccess && (
-                        <div className="alert alert--success">{notificationSuccess}</div>
+                        <div
+                            style={{
+                                padding: "0.75rem",
+                                marginBottom: "1rem",
+                                backgroundColor: "#00ff0020",
+                                border: "1px solid #00ff00",
+                                borderRadius: "4px",
+                                color: "#00ff00",
+                            }}
+                        >
+                            {notificationSuccess}
+                        </div>
                     )}
 
                     {notificationError && (
-                        <div className="alert alert--error">{notificationError}</div>
+                        <div
+                            style={{
+                                padding: "0.75rem",
+                                marginBottom: "1rem",
+                                backgroundColor: "#ff000020",
+                                border: "1px solid #ff0000",
+                                borderRadius: "4px",
+                                color: "#ff6666",
+                            }}
+                        >
+                            {notificationError}
+                        </div>
                     )}
 
                     {/* Master toggle */}
-                    <div className="alerts__toggle-panel">
-                        <label className="alerts__toggle-label">
+                    <div
+                        style={{
+                            marginBottom: "1.5rem",
+                            padding: "1rem",
+                            backgroundColor: "#333",
+                            borderRadius: "4px",
+                        }}
+                    >
+                        <label
+                            style={{
+                                display: "flex",
+                                alignItems: "center",
+                                cursor: "pointer",
+                            }}
+                        >
                             <input
                                 type="checkbox"
                                 checked={notificationEnabled}
                                 onChange={(e) =>
                                     setNotificationEnabled(e.target.checked)
                                 }
-                                className="alerts__toggle-checkbox"
+                                style={{
+                                    marginRight: "0.5rem",
+                                    width: "18px",
+                                    height: "18px",
+                                }}
                             />
-                            <span className="text-bold">Enable Notifications</span>
+                            <span style={{ fontWeight: "bold" }}>
+                                Enable Notifications
+                            </span>
                         </label>
-                        <div className="alerts__toggle-hint">
+                        <div
+                            style={{
+                                fontSize: "0.978rem",
+                                color: "#808080",
+                                marginTop: "0.5rem",
+                                marginLeft: "26px",
+                            }}
+                        >
                             Master switch for all notification channels
                         </div>
                     </div>
 
-                    {/* All channel settings -- hidden when master toggle is off */}
-                    {notificationEnabled && (
-                        <>
-                            {/* Telegram */}
-                            <div className="section">
-                                <h3 className="mt-0 mb-md">Telegram</h3>
-                                <Input
-                                    label="Bot Token"
+                    {/* All channel settings — hidden when master toggle is off */}
+                    <div
+                        style={{
+                            display: notificationEnabled ? "block" : "none",
+                        }}
+                    >
+                        {/* Telegram */}
+                        <div style={sectionStyle}>
+                            <h3 style={{ marginTop: 0, marginBottom: "1rem" }}>
+                                Telegram
+                            </h3>
+
+                            <div style={{ marginBottom: "0.75rem" }}>
+                                <label style={labelStyle}>Bot Token</label>
+                                <input
+                                    type="text"
                                     value={telegramBotToken}
-                                    onChange={setTelegramBotToken}
+                                    onChange={(e) =>
+                                        setTelegramBotToken(e.target.value)
+                                    }
                                     placeholder="123456789:ABCdefGHIjklMNOpqrSTUvwxYZ"
+                                    style={inputStyle}
                                 />
-                                <Input
-                                    label="Chat ID"
-                                    value={telegramChatId}
-                                    onChange={setTelegramChatId}
-                                    placeholder="-1001234567890"
-                                />
-                                <a
-                                    href="https://core.telegram.org/bots#how-do-i-create-a-bot"
-                                    target="_blank"
-                                    rel="noopener noreferrer"
-                                    className="help-link"
-                                >
-                                    How to create a Telegram bot & get your Chat ID
-                                </a>
                             </div>
 
-                            {/* Email */}
-                            <div className="section">
-                                <h3 className="mt-0 mb-md">Email</h3>
-                                <Input
-                                    label="Email Address"
+                            <div style={{ marginBottom: "0.5rem" }}>
+                                <label style={labelStyle}>Chat ID</label>
+                                <input
+                                    type="text"
+                                    value={telegramChatId}
+                                    onChange={(e) =>
+                                        setTelegramChatId(e.target.value)
+                                    }
+                                    placeholder="-1001234567890"
+                                    style={inputStyle}
+                                />
+                            </div>
+
+                            <a
+                                href="https://core.telegram.org/bots#how-do-i-create-a-bot"
+                                target="_blank"
+                                rel="noopener noreferrer"
+                                style={helpLinkStyle}
+                            >
+                                How to create a Telegram bot & get your Chat ID
+                            </a>
+                        </div>
+
+                        {/* Email */}
+                        <div style={sectionStyle}>
+                            <h3 style={{ marginTop: 0, marginBottom: "1rem" }}>
+                                Email
+                            </h3>
+
+                            <div style={{ marginBottom: "0.75rem" }}>
+                                <label style={labelStyle}>Email Address</label>
+                                <input
                                     type="email"
                                     value={email}
-                                    onChange={setEmail}
+                                    onChange={(e) => setEmail(e.target.value)}
                                     placeholder="you@example.com"
+                                    style={inputStyle}
                                 />
-                                <div className="help-link text-dimmed mb-md">
-                                    Alert notifications and digests will be sent to this address
-                                </div>
-                                <div className="alerts__email-buttons">
-                                    <Button
-                                        onClick={handleSetupEmail}
-                                        disabled={settingUpEmail || !email}
-                                        className="btn--sm"
-                                    >
-                                        {settingUpEmail ? "Setting up..." : "Verify Email"}
-                                    </Button>
-                                    <Button
-                                        onClick={handleSendDigest}
-                                        disabled={sendingDigest || !email}
-                                        variant="secondary"
-                                        className="btn--sm"
-                                    >
-                                        {sendingDigest ? "Sending..." : "Send Digest Now"}
-                                    </Button>
-                                </div>
                             </div>
 
-                            {/* Discord */}
-                            <div className="section">
-                                <h3 className="mt-0 mb-md">Discord</h3>
-                                <Input
-                                    label="Discord Webhook URL"
+                            <div
+                                style={{
+                                    fontSize: "0.85rem",
+                                    color: "#808080",
+                                    marginBottom: "0.75rem",
+                                }}
+                            >
+                                Alert notifications and digests will be sent to
+                                this address
+                            </div>
+
+                            <div
+                                style={{
+                                    display: "flex",
+                                    gap: "0.5rem",
+                                }}
+                            >
+                                <button
+                                    onClick={handleSetupEmail}
+                                    disabled={settingUpEmail || !email}
+                                    style={{
+                                        padding: "0.5rem 1rem",
+                                        fontSize: "0.85rem",
+                                        backgroundColor:
+                                            settingUpEmail || !email
+                                                ? "#333"
+                                                : "#0066cc",
+                                        color: "white",
+                                        border: "none",
+                                        borderRadius: "4px",
+                                        cursor:
+                                            settingUpEmail || !email
+                                                ? "not-allowed"
+                                                : "pointer",
+                                    }}
+                                >
+                                    {settingUpEmail
+                                        ? "Setting up..."
+                                        : "Verify Email"}
+                                </button>
+
+                                <button
+                                    onClick={handleSendDigest}
+                                    disabled={sendingDigest || !email}
+                                    style={{
+                                        padding: "0.5rem 1rem",
+                                        fontSize: "0.85rem",
+                                        backgroundColor:
+                                            sendingDigest || !email
+                                                ? "#333"
+                                                : "#6c757d",
+                                        color: "white",
+                                        border: "none",
+                                        borderRadius: "4px",
+                                        cursor:
+                                            sendingDigest || !email
+                                                ? "not-allowed"
+                                                : "pointer",
+                                    }}
+                                >
+                                    {sendingDigest
+                                        ? "Sending..."
+                                        : "Send Digest Now"}
+                                </button>
+                            </div>
+                        </div>
+
+                        {/* Discord */}
+                        <div style={sectionStyle}>
+                            <h3 style={{ marginTop: 0, marginBottom: "1rem" }}>
+                                Discord
+                            </h3>
+
+                            <div style={{ marginBottom: "0.5rem" }}>
+                                <label style={labelStyle}>
+                                    Discord Webhook URL
+                                </label>
+                                <input
+                                    type="text"
                                     value={discordWebhookUrl}
-                                    onChange={setDiscordWebhookUrl}
+                                    onChange={(e) =>
+                                        setDiscordWebhookUrl(e.target.value)
+                                    }
                                     placeholder="https://discord.com/api/webhooks/..."
+                                    style={inputStyle}
                                 />
-                                <a
-                                    href="https://support.discord.com/hc/en-us/articles/228383668-Intro-to-Webhooks"
-                                    target="_blank"
-                                    rel="noopener noreferrer"
-                                    className="help-link"
-                                >
-                                    How to get a Discord webhook URL
-                                </a>
                             </div>
 
-                            {/* Slack */}
-                            <div className="section">
-                                <h3 className="mt-0 mb-md">Slack</h3>
-                                <Input
-                                    label="Slack Webhook URL"
+                            <a
+                                href="https://support.discord.com/hc/en-us/articles/228383668-Intro-to-Webhooks"
+                                target="_blank"
+                                rel="noopener noreferrer"
+                                style={helpLinkStyle}
+                            >
+                                How to get a Discord webhook URL
+                            </a>
+                        </div>
+
+                        {/* Slack */}
+                        <div style={sectionStyle}>
+                            <h3 style={{ marginTop: 0, marginBottom: "1rem" }}>
+                                Slack
+                            </h3>
+
+                            <div style={{ marginBottom: "0.5rem" }}>
+                                <label style={labelStyle}>
+                                    Slack Webhook URL
+                                </label>
+                                <input
+                                    type="text"
                                     value={slackWebhookUrl}
-                                    onChange={setSlackWebhookUrl}
+                                    onChange={(e) =>
+                                        setSlackWebhookUrl(e.target.value)
+                                    }
                                     placeholder="https://hooks.slack.com/services/..."
+                                    style={inputStyle}
                                 />
-                                <a
-                                    href="https://api.slack.com/messaging/webhooks"
-                                    target="_blank"
-                                    rel="noopener noreferrer"
-                                    className="help-link"
-                                >
-                                    How to set up Slack Incoming Webhooks
-                                </a>
                             </div>
 
-                            {/* Save & Test buttons */}
-                            <div className="alerts__save-test">
-                                <Button
-                                    onClick={handleSaveNotificationConfig}
-                                    disabled={notificationLoading}
-                                    className="btn--lg"
-                                >
-                                    {notificationLoading ? "Saving..." : "Save Settings"}
-                                </Button>
-                                <Button
-                                    onClick={handleTestChannels}
-                                    disabled={testingChannels}
-                                    variant="success"
-                                    className="btn--lg"
-                                >
-                                    {testingChannels ? "Testing..." : "Test All Channels"}
-                                </Button>
-                            </div>
-                        </>
-                    )}
+                            <a
+                                href="https://api.slack.com/messaging/webhooks"
+                                target="_blank"
+                                rel="noopener noreferrer"
+                                style={helpLinkStyle}
+                            >
+                                How to set up Slack Incoming Webhooks
+                            </a>
+                        </div>
+
+                        {/* Save & Test buttons at the bottom */}
+                        <div
+                            style={{
+                                display: "flex",
+                                gap: "0.75rem",
+                                marginTop: "1rem",
+                            }}
+                        >
+                            <button
+                                onClick={handleSaveNotificationConfig}
+                                disabled={notificationLoading}
+                                style={{
+                                    padding: "0.75rem 1.5rem",
+                                    fontSize: "1rem",
+                                    backgroundColor: notificationLoading
+                                        ? "#333"
+                                        : "#0066cc",
+                                    color: "white",
+                                    border: "none",
+                                    borderRadius: "4px",
+                                    cursor: notificationLoading
+                                        ? "not-allowed"
+                                        : "pointer",
+                                }}
+                            >
+                                {notificationLoading
+                                    ? "Saving..."
+                                    : "Save Settings"}
+                            </button>
+
+                            <button
+                                onClick={handleTestChannels}
+                                disabled={testingChannels}
+                                style={{
+                                    padding: "0.75rem 1.5rem",
+                                    fontSize: "1rem",
+                                    backgroundColor: testingChannels
+                                        ? "#333"
+                                        : "#28a745",
+                                    color: "white",
+                                    border: "none",
+                                    borderRadius: "4px",
+                                    cursor: testingChannels
+                                        ? "not-allowed"
+                                        : "pointer",
+                                }}
+                            >
+                                {testingChannels
+                                    ? "Testing..."
+                                    : "Test All Channels"}
+                            </button>
+                        </div>
+                    </div>
                 </div>
             </div>
         </div>

frontend/src/pages/Login.css

@@ -1,62 +0,0 @@
-.login-page {
-  min-height: 100vh;
-  background-image: url(/ping.png);
-  background-size: 67%;
-  background-position: center;
-  background-repeat: no-repeat;
-}
-
-.login-card {
-  max-width: 400px;
-  margin: 20px auto;
-  padding: 2rem;
-  padding-top: 8rem;
-  border: 1px solid var(--color-border-light);
-  border-radius: var(--radius-xl);
-  background-color: rgba(0, 0, 0, 0.75);
-}
-
-.login-heading {
-  margin-bottom: 2rem;
-  text-align: center;
-}
-
-.login-brand {
-  color: var(--color-brand);
-}
-
-.login-button {
-  width: 100%;
-  padding: 0.75rem;
-  font-size: 1.2rem;
-  margin-top: 16px;
-  ;
-}
-
-.login-footer {
-  margin-top: 1.5rem;
-  text-align: center;
-}
-
-.login-signup-link {
-  color: var(--color-primary);
-  text-decoration: none;
-}
-
-@keyframes fadeIn {
-  from {
-    opacity: 0;
-  }
-
-  to {
-    opacity: 1;
-  }
-}
-
-.login-form-hidden {
-  opacity: 0;
-}
-
-.login-form-visible {
-  animation: fadeIn 2s ease-in-out forwards;
-}

frontend/src/pages/Login.jsx

@@ -1,83 +1,146 @@
+/**
+ * Login Page
+ *
+ * Allows existing users to sign in with email and password
+ */
+
 import { useState } from "react";
 import { Link, useNavigate } from "react-router-dom";
 import { useAuth } from "../contexts/AuthContext";
-import Input from "../components/Input";
-import "./Login.css";
 
 export default function Login() {
-  const [isVisible, setIsVisible] = useState(false);
-  const [email, setEmail] = useState("");
-  const [password, setPassword] = useState("");
-  const [error, setError] = useState("");
-  const [loading, setLoading] = useState(false);
+    const [email, setEmail] = useState("");
+    const [password, setPassword] = useState("");
+    const [error, setError] = useState("");
+    const [loading, setLoading] = useState(false);
 
-  const { login } = useAuth();
-  const navigate = useNavigate();
+    const { login } = useAuth();
+    const navigate = useNavigate();
 
-  async function handleSubmit(e) {
-    e.preventDefault();
+    async function handleSubmit(e) {
+        e.preventDefault();
 
-    if (!email || !password) {
-      setError("Please fill in all fields");
-      return;
+        // Validation
+        if (!email || !password) {
+            setError("Please fill in all fields");
+            return;
+        }
+
+        try {
+            setError("");
+            setLoading(true);
+            await login(email, password);
+            navigate("/addresses"); // Redirect to main app
+        } catch (err) {
+            setError("Failed to log in: " + err.message);
+        } finally {
+            setLoading(false);
+        }
     }
 
-    try {
-      setError("");
-      setLoading(true);
-      await login(email, password);
-      navigate("/addresses");
-    } catch (err) {
-      setError("Failed to log in: " + err.message);
-    } finally {
-      setLoading(false);
-    }
-  }
+    return (
+        <div
+            style={{
+                maxWidth: "400px",
+                margin: "4rem auto",
+                padding: "2rem",
+                border: "1px solid #333",
+                borderRadius: "8px",
+            }}
+        >
+            <h1 style={{ marginBottom: "2rem", textAlign: "center" }}>
+                Koin Ping - Login
+            </h1>
 
-  return (
-    <div className="login-page">
-      <div className="login-card" onMouseEnter={() => setIsVisible(true)}>
-        <h1 className="login-heading">
-          <span className="login-brand">Koin Ping</span> - Login
-        </h1>
+            {error && (
+                <div
+                    style={{
+                        padding: "0.75rem",
+                        marginBottom: "1rem",
+                        backgroundColor: "#ff000020",
+                        border: "1px solid #ff0000",
+                        borderRadius: "4px",
+                        color: "#ff6666",
+                    }}
+                >
+                    {error}
+                </div>
+            )}
 
-        <div className={isVisible ? "login-form-visible" : "login-form-hidden"}>
-          {error && <div className="alert alert--error">{error}</div>}
+            <form onSubmit={handleSubmit}>
+                <div style={{ marginBottom: "1rem" }}>
+                    <label style={{ display: "block", marginBottom: "0.5rem" }}>
+                        Email
+                    </label>
+                    <input
+                        type="email"
+                        value={email}
+                        onChange={(e) => setEmail(e.target.value)}
+                        disabled={loading}
+                        style={{
+                            width: "100%",
+                            padding: "0.5rem",
+                            fontSize: "1rem",
+                            backgroundColor: "#242424",
+                            border: "1px solid #444",
+                            borderRadius: "4px",
+                            color: "white",
+                        }}
+                        required
+                    />
+                </div>
 
-          <form onSubmit={handleSubmit}>
-            <Input
-              label="Email"
-              type="email"
-              value={email}
-              onChange={setEmail}
-              disabled={loading}
-              required
-            />
-            <Input
-              label="Password"
-              type="password"
-              value={password}
-              onChange={setPassword}
-              disabled={loading}
-              required
-              className="form-field--last"
-            />
+                <div style={{ marginBottom: "1.5rem" }}>
+                    <label style={{ display: "block", marginBottom: "0.5rem" }}>
+                        Password
+                    </label>
+                    <input
+                        type="password"
+                        value={password}
+                        onChange={(e) => setPassword(e.target.value)}
+                        disabled={loading}
+                        style={{
+                            width: "100%",
+                            padding: "0.5rem",
+                            fontSize: "1rem",
+                            backgroundColor: "#242424",
+                            border: "1px solid #444",
+                            borderRadius: "4px",
+                            color: "white",
+                        }}
+                        required
+                    />
+                </div>
 
-            <button type="submit" disabled={loading} className="btn btn--primary login-button">
-              {loading ? "Logging in..." : "Log In"}
-            </button>
-          </form>
+                <button
+                    type="submit"
+                    disabled={loading}
+                    style={{
+                        width: "100%",
+                        padding: "0.75rem",
+                        fontSize: "1rem",
+                        backgroundColor: loading ? "#333" : "#0066cc",
+                        color: "white",
+                        border: "none",
+                        borderRadius: "4px",
+                        cursor: loading ? "not-allowed" : "pointer",
+                    }}
+                >
+                    {loading ? "Logging in..." : "Log In"}
+                </button>
+            </form>
 
-          <div className="login-footer">
-            <p className="text-muted">
-              Don't have an account?{" "}
-              <Link to="/signup" className="login-signup-link">
-                Sign up here
-              </Link>
-            </p>
-          </div>
+            <div style={{ marginTop: "1.5rem", textAlign: "center" }}>
+                <p style={{ color: "#b3b3b3" }}>
+                    Don't have an account?{" "}
+                    <Link
+                        to="/signup"
+                        style={{ color: "#0066cc", textDecoration: "none" }}
+                    >
+                        Sign up here
+                    </Link>
+                </p>
+            </div>
         </div>
-      </div>
-    </div>
-  );
+    );
 }

frontend/src/pages/Onboarding.css

@@ -1,185 +0,0 @@
-.onboarding {
-  min-height: 100vh;
-  background-color: var(--color-bg);
-  display: flex;
-  flex-direction: column;
-  align-items: center;
-  justify-content: flex-start;
-  padding-top: 3rem;
-  padding-bottom: 3rem;
-}
-
-.onboarding__container {
-  width: 100%;
-  max-width: 540px;
-  padding: 0 1rem;
-}
-
-.onboarding__title {
-  text-align: center;
-  margin-bottom: 2rem;
-  color: var(--color-primary);
-  letter-spacing: 0.5px;
-}
-
-.onboarding__card {
-  background-color: var(--color-bg-elevated);
-  border: 1px solid var(--color-border-light);
-  border-radius: var(--radius-xl);
-  padding: 2rem;
-}
-
-.onboarding__login-link {
-  text-align: center;
-  margin-top: 1.25rem;
-  color: #888;
-  font-size: 0.9rem;
-}
-
-.onboarding__login-link a {
-  color: var(--color-primary);
-}
-
-/* Progress bar */
-.progress-bar {
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  margin-bottom: 2rem;
-}
-
-.progress-bar__step {
-  display: flex;
-  align-items: center;
-}
-
-.progress-bar__connector {
-  width: 40px;
-  height: 2px;
-  margin: 0 4px;
-}
-
-.progress-bar__connector--active {
-  background-color: var(--color-primary);
-}
-
-.progress-bar__connector--inactive {
-  background-color: var(--color-border);
-}
-
-.progress-bar__dot {
-  width: 32px;
-  height: 32px;
-  border-radius: 50%;
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  font-weight: bold;
-  font-size: 0.85rem;
-  color: white;
-  margin: 0 auto 4px;
-}
-
-.progress-bar__dot--done,
-.progress-bar__dot--active {
-  background-color: var(--color-primary);
-}
-
-.progress-bar__dot--active {
-  border: 2px solid #4499ff;
-}
-
-.progress-bar__dot--pending {
-  background-color: var(--color-bg-card);
-  border: 2px solid transparent;
-}
-
-.progress-bar__label {
-  font-size: 0.7rem;
-  white-space: nowrap;
-}
-
-.progress-bar__label--active {
-  color: white;
-}
-
-.progress-bar__label--inactive {
-  color: #888;
-}
-
-/* Step 5 summary */
-.onboarding__summary {
-  background-color: #1e2e1e;
-  border: 1px solid #2d5a2d;
-  border-radius: var(--radius-lg);
-  padding: 1rem 1.25rem;
-  margin-bottom: 1.5rem;
-}
-
-.onboarding__summary-title {
-  margin: 0 0 0.5rem;
-  color: #90ee90;
-  font-weight: bold;
-}
-
-.onboarding__summary-list {
-  margin: 0;
-  padding-left: 1.25rem;
-  color: var(--color-text-label);
-  line-height: 1.8;
-}
-
-/* Checkbox rows */
-.checkbox-row {
-  margin-bottom: 1rem;
-}
-
-.checkbox-row__label {
-  display: flex;
-  align-items: center;
-  gap: 0.6rem;
-  cursor: pointer;
-  color: #ddd;
-}
-
-.checkbox-row__input {
-  width: 16px;
-  height: 16px;
-  accent-color: var(--color-primary);
-}
-
-.checkbox-row__nested {
-  margin-top: 0.5rem;
-  margin-left: 1.75rem;
-}
-
-/* Footer navigation */
-.onboarding__footer {
-  display: flex;
-  justify-content: space-between;
-  align-items: center;
-  margin-top: 1.5rem;
-  padding-top: 1rem;
-  border-top: 1px solid var(--color-border-light);
-}
-
-/* Test results */
-.test-result {
-  font-size: 0.9rem;
-  margin-bottom: 0.25rem;
-}
-
-.test-result--success {
-  color: #90ee90;
-}
-
-.test-result--failure {
-  color: var(--color-error);
-}
-
-/* Step subtitle */
-.onboarding__subtitle {
-  color: #aaa;
-  margin-bottom: 1.5rem;
-  font-size: 0.9rem;
-}

frontend/src/pages/Onboarding.jsx

@@ -1,644 +0,0 @@
-/**
- * Onboarding Wizard
- *
- * 5-step guided flow: Create Account -> Add Wallet -> Alert Rules -> Notifications -> Done
- */
-
-import { useState, useEffect } from "react";
-import { useNavigate } from "react-router-dom";
-import { useAuth } from "../contexts/AuthContext";
-import { createAddress, getAddresses } from "../api/addresses";
-import { createAlert } from "../api/alerts";
-import {
-    updateNotificationConfig,
-    testNotificationChannels,
-} from "../api/notificationConfig";
-import Input from "../components/Input";
-import Button from "../components/Button";
-import "./Onboarding.css";
-
-const STEPS = [
-    "Create Account",
-    "Add Wallet",
-    "Alert Rules",
-    "Notifications",
-    "Done",
-];
-
-export default function Onboarding() {
-    const { currentUser, signup } = useAuth();
-    const navigate = useNavigate();
-
-    const [step, setStep] = useState(1);
-    const [loading, setLoading] = useState(false);
-    const [error, setError] = useState("");
-    const [skipWarning, setSkipWarning] = useState("");
-    const [testResults, setTestResults] = useState(null);
-    const [testLoading, setTestLoading] = useState(false);
-
-    const [data, setData] = useState({
-        email: "",
-        password: "",
-        confirmPassword: "",
-        walletAddress: "",
-        walletLabel: "",
-        createdAddressId: null,
-        alertIncomingTx: false,
-        alertOutgoingTx: false,
-        alertLargeTransfer: false,
-        largeTransferThreshold: "",
-        alertBalanceBelow: false,
-        balanceBelowThreshold: "",
-        discordWebhookUrl: "",
-        slackWebhookUrl: "",
-        notificationEmail: "",
-        alertsCreated: [],
-        notificationConfigured: false,
-    });
-
-    function set(field, value) {
-        setData((prev) => ({ ...prev, [field]: value }));
-    }
-
-    useEffect(() => {
-        if (!currentUser) return;
-        getAddresses()
-            .then((addresses) => {
-                if (addresses.length > 0) {
-                    navigate("/addresses", { replace: true });
-                }
-            })
-            .catch(() => {});
-    }, [currentUser, navigate]);
-
-    // ── Step handlers ─────────────────────────────────────────────────────────
-
-    async function handleStep1() {
-        setError("");
-        if (!data.email || !data.password || !data.confirmPassword) {
-            setError("Please fill in all fields");
-            return;
-        }
-        if (data.password !== data.confirmPassword) {
-            setError("Passwords do not match");
-            return;
-        }
-        if (data.password.length < 6) {
-            setError("Password must be at least 6 characters");
-            return;
-        }
-        if (!currentUser) {
-            try {
-                setLoading(true);
-                await signup(data.email, data.password);
-            } catch (err) {
-                if (err.code === "auth/email-already-in-use") {
-                    setError("Email already in use. Try logging in instead.");
-                } else if (err.code === "auth/invalid-email") {
-                    setError("Invalid email address");
-                } else if (err.code === "auth/weak-password") {
-                    setError("Password is too weak");
-                } else {
-                    setError("Failed to create account: " + err.message);
-                }
-                setLoading(false);
-                return;
-            } finally {
-                setLoading(false);
-            }
-        }
-        setStep(2);
-    }
-
-    async function handleStep2() {
-        setError("");
-        if (!data.walletAddress) {
-            setError("Please enter a wallet address");
-            return;
-        }
-        if (!/^0x[0-9a-fA-F]{40}$/.test(data.walletAddress)) {
-            setError("Invalid ETH address (must be 0x followed by 40 hex characters)");
-            return;
-        }
-        try {
-            setLoading(true);
-            const created = await createAddress({
-                address: data.walletAddress,
-                label: data.walletLabel || undefined,
-            });
-            set("createdAddressId", created.id);
-            setStep(3);
-        } catch (err) {
-            setError(err.message);
-        } finally {
-            setLoading(false);
-        }
-    }
-
-    async function handleStep3() {
-        setError("");
-        const rules = [];
-        if (data.alertIncomingTx) rules.push({ type: "incoming_tx" });
-        if (data.alertOutgoingTx) rules.push({ type: "outgoing_tx" });
-        if (data.alertLargeTransfer) {
-            if (!data.largeTransferThreshold) {
-                setError("Please enter a threshold for large transfers");
-                return;
-            }
-            rules.push({ type: "large_transfer", threshold: data.largeTransferThreshold });
-        }
-        if (data.alertBalanceBelow) {
-            if (!data.balanceBelowThreshold) {
-                setError("Please enter a threshold for balance below");
-                return;
-            }
-            rules.push({ type: "balance_below", threshold: data.balanceBelowThreshold });
-        }
-
-        if (rules.length === 0) {
-            setStep(4);
-            return;
-        }
-
-        try {
-            setLoading(true);
-            const created = [];
-            for (const rule of rules) {
-                const result = await createAlert(data.createdAddressId, rule);
-                created.push(result);
-            }
-            set("alertsCreated", created);
-            setStep(4);
-        } catch (err) {
-            setError(err.message);
-        } finally {
-            setLoading(false);
-        }
-    }
-
-    async function handleStep4() {
-        setError("");
-        const hasAny =
-            data.discordWebhookUrl || data.slackWebhookUrl || data.notificationEmail;
-        if (!hasAny) {
-            setStep(5);
-            return;
-        }
-        try {
-            setLoading(true);
-            await updateNotificationConfig({
-                notification_enabled: true,
-                discord_webhook_url: data.discordWebhookUrl || undefined,
-                slack_webhook_url: data.slackWebhookUrl || undefined,
-                email: data.notificationEmail || undefined,
-            });
-            set("notificationConfigured", true);
-            setStep(5);
-        } catch (err) {
-            setError(err.message);
-        } finally {
-            setLoading(false);
-        }
-    }
-
-    async function handleTestChannels() {
-        setTestLoading(true);
-        setTestResults(null);
-        try {
-            const results = await testNotificationChannels();
-            setTestResults(results);
-        } catch (err) {
-            setTestResults({ error: err.message });
-        } finally {
-            setTestLoading(false);
-        }
-    }
-
-    // ── Progress bar ──────────────────────────────────────────────────────────
-
-    function ProgressBar() {
-        return (
-            <div className="progress-bar">
-                {STEPS.map((label, i) => {
-                    const stepNum = i + 1;
-                    const done = step > stepNum;
-                    const active = step === stepNum;
-                    const dotClass = done
-                        ? "progress-bar__dot--done"
-                        : active
-                          ? "progress-bar__dot--active"
-                          : "progress-bar__dot--pending";
-
-                    return (
-                        <div key={label} className="progress-bar__step">
-                            {i > 0 && (
-                                <div
-                                    className={`progress-bar__connector ${
-                                        done || active
-                                            ? "progress-bar__connector--active"
-                                            : "progress-bar__connector--inactive"
-                                    }`}
-                                />
-                            )}
-                            <div>
-                                <div className={`progress-bar__dot ${dotClass}`}>
-                                    {done ? "\u2713" : stepNum}
-                                </div>
-                                <div
-                                    className={`progress-bar__label ${
-                                        active
-                                            ? "progress-bar__label--active"
-                                            : "progress-bar__label--inactive"
-                                    }`}
-                                >
-                                    {label}
-                                </div>
-                            </div>
-                        </div>
-                    );
-                })}
-            </div>
-        );
-    }
-
-    // ── Step content ──────────────────────────────────────────────────────────
-
-    function Step1() {
-        return (
-            <>
-                <h2 className="mb-lg">Create your account</h2>
-                <Input
-                    label="Email"
-                    type="email"
-                    value={data.email}
-                    onChange={(v) => set("email", v)}
-                    disabled={loading}
-                    placeholder="you@example.com"
-                />
-                <Input
-                    label="Password"
-                    type="password"
-                    value={data.password}
-                    onChange={(v) => set("password", v)}
-                    disabled={loading}
-                    placeholder="At least 6 characters"
-                />
-                <Input
-                    label="Confirm Password"
-                    type="password"
-                    value={data.confirmPassword}
-                    onChange={(v) => set("confirmPassword", v)}
-                    disabled={loading}
-                    placeholder="Repeat your password"
-                    className="form-field--last"
-                />
-            </>
-        );
-    }
-
-    function Step2() {
-        return (
-            <>
-                <h2 className="mb-sm">Add a wallet address</h2>
-                <p className="onboarding__subtitle">
-                    Enter the Ethereum address you want to monitor.
-                </p>
-                <Input
-                    label="ETH Address"
-                    value={data.walletAddress}
-                    onChange={(v) => set("walletAddress", v)}
-                    disabled={loading}
-                    placeholder="0x..."
-                />
-                <Input
-                    label="Label (optional)"
-                    value={data.walletLabel}
-                    onChange={(v) => set("walletLabel", v)}
-                    disabled={loading}
-                    placeholder="e.g. My main wallet"
-                    className="form-field--last"
-                />
-            </>
-        );
-    }
-
-    function Step3() {
-        return (
-            <>
-                <h2 className="mb-sm">Configure alert rules</h2>
-                <p className="onboarding__subtitle">
-                    Choose which events trigger notifications. You can change these later.
-                </p>
-
-                <CheckboxRow
-                    checked={data.alertIncomingTx}
-                    onChange={(v) => set("alertIncomingTx", v)}
-                    label="Incoming transaction"
-                />
-                <CheckboxRow
-                    checked={data.alertOutgoingTx}
-                    onChange={(v) => set("alertOutgoingTx", v)}
-                    label="Outgoing transaction"
-                />
-                <CheckboxRow
-                    checked={data.alertLargeTransfer}
-                    onChange={(v) => set("alertLargeTransfer", v)}
-                    label="Large transfer"
-                >
-                    {data.alertLargeTransfer && (
-                        <div className="checkbox-row__nested">
-                            <Input
-                                type="number"
-                                label=""
-                                value={data.largeTransferThreshold}
-                                onChange={(v) => set("largeTransferThreshold", v)}
-                                placeholder="Threshold (ETH)"
-                                min="0"
-                                step="0.01"
-                            />
-                        </div>
-                    )}
-                </CheckboxRow>
-                <CheckboxRow
-                    checked={data.alertBalanceBelow}
-                    onChange={(v) => set("alertBalanceBelow", v)}
-                    label="Balance below"
-                >
-                    {data.alertBalanceBelow && (
-                        <div className="checkbox-row__nested">
-                            <Input
-                                type="number"
-                                label=""
-                                value={data.balanceBelowThreshold}
-                                onChange={(v) => set("balanceBelowThreshold", v)}
-                                placeholder="Threshold (ETH)"
-                                min="0"
-                                step="0.01"
-                            />
-                        </div>
-                    )}
-                </CheckboxRow>
-            </>
-        );
-    }
-
-    function Step4() {
-        return (
-            <>
-                <h2 className="mb-sm">Set up notifications</h2>
-                <p className="onboarding__subtitle">
-                    Add at least one channel so you receive alerts. All fields are optional.
-                </p>
-
-                <div className="mb-md">
-                    <label className="form-label">
-                        Discord Webhook URL{" "}
-                        <a
-                            href="https://support.discord.com/hc/en-us/articles/228383668"
-                            target="_blank"
-                            rel="noreferrer"
-                            className="help-link"
-                        >
-                            (how to get one)
-                        </a>
-                    </label>
-                    <Input
-                        label=""
-                        type="url"
-                        value={data.discordWebhookUrl}
-                        onChange={(v) => set("discordWebhookUrl", v)}
-                        disabled={loading}
-                        placeholder="https://discord.com/api/webhooks/..."
-                    />
-                </div>
-
-                <div className="mb-md">
-                    <label className="form-label">
-                        Slack Webhook URL{" "}
-                        <a
-                            href="https://api.slack.com/messaging/webhooks"
-                            target="_blank"
-                            rel="noreferrer"
-                            className="help-link"
-                        >
-                            (how to get one)
-                        </a>
-                    </label>
-                    <Input
-                        label=""
-                        type="url"
-                        value={data.slackWebhookUrl}
-                        onChange={(v) => set("slackWebhookUrl", v)}
-                        disabled={loading}
-                        placeholder="https://hooks.slack.com/services/..."
-                    />
-                </div>
-
-                <Input
-                    label="Email address for alerts"
-                    type="email"
-                    value={data.notificationEmail}
-                    onChange={(v) => set("notificationEmail", v)}
-                    disabled={loading}
-                    placeholder="you@example.com"
-                    className="form-field--last"
-                />
-            </>
-        );
-    }
-
-    function Step5() {
-        const alertCount = data.alertsCreated.length;
-        const hasNotif = data.notificationConfigured;
-
-        return (
-            <>
-                <h2 className="mb-md">You're all set!</h2>
-
-                <div className="onboarding__summary">
-                    <p className="onboarding__summary-title">Summary</p>
-                    <ul className="onboarding__summary-list">
-                        <li>
-                            Wallet address added:{" "}
-                            <span className="text-mono text-white-sm">
-                                {data.walletAddress}
-                            </span>
-                            {data.walletLabel && ` (${data.walletLabel})`}
-                        </li>
-                        <li>
-                            Alert rules configured:{" "}
-                            <span className="text-white">
-                                {alertCount > 0 ? `${alertCount} rule${alertCount !== 1 ? "s" : ""}` : "None (skipped)"}
-                            </span>
-                        </li>
-                        <li>
-                            Notification channels:{" "}
-                            <span className="text-white">
-                                {hasNotif ? "Configured" : "Not set up (skipped)"}
-                            </span>
-                        </li>
-                    </ul>
-                </div>
-
-                {hasNotif && (
-                    <div className="mb-lg">
-                        <Button
-                            onClick={handleTestChannels}
-                            disabled={testLoading}
-                            variant="ghost"
-                        >
-                            {testLoading ? "Testing..." : "Test All Channels"}
-                        </Button>
-
-                        {testResults && (
-                            <div className="mt-md">
-                                {testResults.error ? (
-                                    <p className="text-error">{testResults.error}</p>
-                                ) : (
-                                    <ul className="list-unstyled">
-                                        {Object.entries(testResults).map(([channel, result]) => (
-                                            <li
-                                                key={channel}
-                                                className={`test-result ${result.success ? "test-result--success" : "test-result--failure"}`}
-                                            >
-                                                {result.success ? "\u2713" : "\u2717"} {channel}:{" "}
-                                                {result.message || (result.success ? "OK" : "Failed")}
-                                            </li>
-                                        ))}
-                                    </ul>
-                                )}
-                            </div>
-                        )}
-                    </div>
-                )}
-
-                <Button onClick={() => navigate("/addresses")} className="btn--lg text-bold">
-                    Go to Dashboard →
-                </Button>
-            </>
-        );
-    }
-
-    // ── Shared helpers ────────────────────────────────────────────────────────
-
-    function CheckboxRow({ checked, onChange, label, children }) {
-        return (
-            <div className="checkbox-row">
-                <label className="checkbox-row__label">
-                    <input
-                        type="checkbox"
-                        checked={checked}
-                        onChange={(e) => onChange(e.target.checked)}
-                        className="checkbox-row__input"
-                    />
-                    {label}
-                </label>
-                {children}
-            </div>
-        );
-    }
-
-    // ── Footer navigation ─────────────────────────────────────────────────────
-
-    function Footer() {
-        if (step === 5) return null;
-
-        const canSkip = step === 3 || step === 4;
-        const canBack = step > 1;
-
-        async function handleNext() {
-            setSkipWarning("");
-            if (step === 1) await handleStep1();
-            else if (step === 2) await handleStep2();
-            else if (step === 3) await handleStep3();
-            else if (step === 4) await handleStep4();
-        }
-
-        function handleSkip() {
-            setError("");
-            setSkipWarning("");
-            setStep((s) => s + 1);
-        }
-
-        function handleBack() {
-            setError("");
-            setSkipWarning("");
-            setStep((s) => s - 1);
-        }
-
-        return (
-            <div className="onboarding__footer">
-                <div>
-                    {canBack && (
-                        <Button
-                            onClick={handleBack}
-                            disabled={loading}
-                            variant="ghost"
-                        >
-                            ← Back
-                        </Button>
-                    )}
-                </div>
-
-                <div className="flex gap-md">
-                    {canSkip && (
-                        <Button
-                            onClick={handleSkip}
-                            disabled={loading}
-                            variant="ghost"
-                        >
-                            Skip for now
-                        </Button>
-                    )}
-                    <Button
-                        onClick={handleNext}
-                        disabled={loading}
-                        className="text-bold"
-                    >
-                        {loading ? "Please wait..." : step === 4 ? "Finish" : "Next →"}
-                    </Button>
-                </div>
-            </div>
-        );
-    }
-
-    // ── Render ────────────────────────────────────────────────────────────────
-
-    const stepContent = {
-        1: <Step1 />,
-        2: <Step2 />,
-        3: <Step3 />,
-        4: <Step4 />,
-        5: <Step5 />,
-    };
-
-    return (
-        <div className="onboarding">
-            <div className="onboarding__container">
-                <h1 className="onboarding__title">Koin Ping</h1>
-
-                <ProgressBar />
-
-                {error && (
-                    <div className="alert alert--error">{error}</div>
-                )}
-
-                {skipWarning && (
-                    <div className="alert alert--warning">{skipWarning}</div>
-                )}
-
-                <div className="onboarding__card">
-                    {stepContent[step]}
-                    <Footer />
-                </div>
-
-                {step === 1 && (
-                    <p className="onboarding__login-link">
-                        Already have an account?{" "}
-                        <a href="/login">Log in here</a>
-                    </p>
-                )}
-            </div>
-        </div>
-    );
-}

frontend/src/pages/Signup.jsx

@@ -1,5 +1,188 @@
-import { Navigate } from "react-router-dom";
+/**
+ * Signup Page
+ *
+ * Allows new users to create an account with email and password
+ */
+
+import { useState } from "react";
+import { Link, useNavigate } from "react-router-dom";
+import { useAuth } from "../contexts/AuthContext";
 
 export default function Signup() {
-    return <Navigate to="/onboarding" replace />;
+    const [email, setEmail] = useState("");
+    const [password, setPassword] = useState("");
+    const [confirmPassword, setConfirmPassword] = useState("");
+    const [error, setError] = useState("");
+    const [loading, setLoading] = useState(false);
+
+    const { signup } = useAuth();
+    const navigate = useNavigate();
+
+    async function handleSubmit(e) {
+        e.preventDefault();
+
+        // Validation
+        if (!email || !password || !confirmPassword) {
+            setError("Please fill in all fields");
+            return;
+        }
+
+        if (password !== confirmPassword) {
+            setError("Passwords do not match");
+            return;
+        }
+
+        if (password.length < 6) {
+            setError("Password must be at least 6 characters");
+            return;
+        }
+
+        try {
+            setError("");
+            setLoading(true);
+            await signup(email, password);
+            navigate("/addresses"); // Auto-login and redirect
+        } catch (err) {
+            // Firebase-specific error messages
+            if (err.code === "auth/email-already-in-use") {
+                setError("Email already in use. Try logging in instead.");
+            } else if (err.code === "auth/invalid-email") {
+                setError("Invalid email address");
+            } else if (err.code === "auth/weak-password") {
+                setError("Password is too weak");
+            } else {
+                setError("Failed to create account: " + err.message);
+            }
+        } finally {
+            setLoading(false);
+        }
+    }
+
+    return (
+        <div
+            style={{
+                maxWidth: "400px",
+                margin: "4rem auto",
+                padding: "2rem",
+                border: "1px solid #333",
+                borderRadius: "8px",
+            }}
+        >
+            <h1 style={{ marginBottom: "2rem", textAlign: "center" }}>
+                Koin Ping - Sign Up
+            </h1>
+
+            {error && (
+                <div
+                    style={{
+                        padding: "0.75rem",
+                        marginBottom: "1rem",
+                        backgroundColor: "#ff000020",
+                        border: "1px solid #ff0000",
+                        borderRadius: "4px",
+                        color: "#ff6666",
+                    }}
+                >
+                    {error}
+                </div>
+            )}
+
+            <form onSubmit={handleSubmit}>
+                <div style={{ marginBottom: "1rem" }}>
+                    <label style={{ display: "block", marginBottom: "0.5rem" }}>
+                        Email
+                    </label>
+                    <input
+                        type="email"
+                        value={email}
+                        onChange={(e) => setEmail(e.target.value)}
+                        disabled={loading}
+                        style={{
+                            width: "100%",
+                            padding: "0.5rem",
+                            fontSize: "1rem",
+                            backgroundColor: "#242424",
+                            border: "1px solid #444",
+                            borderRadius: "4px",
+                            color: "white",
+                        }}
+                        required
+                    />
+                </div>
+
+                <div style={{ marginBottom: "1rem" }}>
+                    <label style={{ display: "block", marginBottom: "0.5rem" }}>
+                        Password
+                    </label>
+                    <input
+                        type="password"
+                        value={password}
+                        onChange={(e) => setPassword(e.target.value)}
+                        disabled={loading}
+                        style={{
+                            width: "100%",
+                            padding: "0.5rem",
+                            fontSize: "1rem",
+                            backgroundColor: "#242424",
+                            border: "1px solid #444",
+                            borderRadius: "4px",
+                            color: "white",
+                        }}
+                        required
+                    />
+                </div>
+
+                <div style={{ marginBottom: "1.5rem" }}>
+                    <label style={{ display: "block", marginBottom: "0.5rem" }}>
+                        Confirm Password
+                    </label>
+                    <input
+                        type="password"
+                        value={confirmPassword}
+                        onChange={(e) => setConfirmPassword(e.target.value)}
+                        disabled={loading}
+                        style={{
+                            width: "100%",
+                            padding: "0.5rem",
+                            fontSize: "1rem",
+                            backgroundColor: "#242424",
+                            border: "1px solid #444",
+                            borderRadius: "4px",
+                            color: "white",
+                        }}
+                        required
+                    />
+                </div>
+
+                <button
+                    type="submit"
+                    disabled={loading}
+                    style={{
+                        width: "100%",
+                        padding: "0.75rem",
+                        fontSize: "1rem",
+                        backgroundColor: loading ? "#333" : "#0066cc",
+                        color: "white",
+                        border: "none",
+                        borderRadius: "4px",
+                        cursor: loading ? "not-allowed" : "pointer",
+                    }}
+                >
+                    {loading ? "Creating account..." : "Sign Up"}
+                </button>
+            </form>
+
+            <div style={{ marginTop: "1.5rem", textAlign: "center" }}>
+                <p style={{ color: "#b3b3b3" }}>
+                    Already have an account?{" "}
+                    <Link
+                        to="/login"
+                        style={{ color: "#0066cc", textDecoration: "none" }}
+                    >
+                        Log in here
+                    </Link>
+                </p>
+            </div>
+        </div>
+    );
 }