## 1. Project Structure & Types

- [x] 1.1 Create directory structure: `src/lib/types/`, `src/lib/game/`, `src/lib/components/`, `src/lib/utils/`
- [x] 1.2 Define TypeScript types: `Card` (suit, rank), `Suit`, `Rank` enums in `src/lib/types/card.ts`
- [x] 1.3 Define `PlayerSeat` interface with ID, name, chips, currentBet, status, holeCards, position in `src/lib/types/player.ts`
- [x] 1.4 Define `GameState` interface with deck, players, communityCards, pot, dealerPosition, currentTurn, bettingRound, actionHistory in `src/lib/types/game-state.ts`
- [x] 1.5 Define `Action` type (Check, Call, Raise, Fold, AllIn) in `src/lib/types/action.ts`

## 2. Game Engine Foundation

- [x] 2.1 Implement `createDeck()` function that generates a 52-card deck in `src/lib/game/deck.ts`
- [x] 2.2 Implement `shuffleDeck(deck)` function using Fisher-Yates algorithm in `src/lib/game/deck.ts`
- [x] 2.3 Implement `dealHoleCards(deck, players)` pure function that deals 2 cards per active player in `src/lib/game/dealing.ts`
- [x] 2.4 Implement `dealCommunityCards(deck, count)` for flop (3), turn (1), river (1) in `src/lib/game/dealing.ts`
- [x] 2.5 Implement `postBlinds(state)` pure function that deducts small/big blind from correct players in `src/lib/game/blinds.ts`

## 3. Betting Logic

- [x] 3.1 Implement `getNextActivePlayer(state)` helper for clockwise turn advancement in `src/lib/game/turn.ts`
- [x] 3.2 Implement `validateAction(playerId, action, state)` function with fold/call/raise rules in `src/lib/game/validation.ts`
- [x] 3.3 Implement `applyCheck(state, playerId)` pure function returning new state in `src/lib/game/actions.ts`
- [x] 3.4 Implement `applyCall(state, playerId)` pure function returning new state in `src/lib/game/actions.ts`
- [x] 3.5 Implement `applyRaise(state, playerId, amount)` pure function with min-raise validation in `src/lib/game/actions.ts`
- [x] 3.6 Implement `applyFold(state, playerId)` pure function that marks player as folded in `src/lib/game/actions.ts`
- [x] 3.7 Implement `applyAllIn(state, playerId)` pure function that posts remaining chips in `src/lib/game/actions.ts`
- [x] 3.8 Implement `completeBettingRound(state)` to detect when all active players have matched bets and advance to next street in `src/lib/game/betting-round.ts`

## 4. Hand Evaluation

- [x] 4.1 Implement suit/rank constants and comparison utilities in `src/lib/utils/ranks.ts`
- [x] 4.2 Implement `evaluateHand(7 cards)` function that returns hand rank (high card through royal flush) in `src/lib/utils/hand-evaluator.ts`
- [x] 4.3 Implement tiebreaker logic for same-rank hands using kicker comparison in `src/lib/utils/hand-evaluator.ts`
- [x] 4.4 Implement `determineWinner(state)` function that evaluates all active players and awards pot in `src/lib/game/showdown.ts`

## 5. Game State Management

- [x] 5.1 Implement `createInitialState(numPlayers, startingStack)` factory function in `src/lib/game/state.ts`
- [x] 5.2 Implement `startNewHand(state)` pure function: shuffle deck, post blinds, deal hole cards, reset bets in `src/lib/game/hand.ts`
- [x] 5.3 Implement `rotateDealer(state)` to advance dealer button clockwise in `src/lib/game/state.ts`
- [x] 5.4 Implement `recordAction(state, playerId, action)` to append to action history in `src/lib/game/state.ts`

## 6. Card Component

- [x] 6.1 Create `Card.svelte` component with props: card (Card), flipped (boolean), animateDeal (boolean) in `src/lib/components/Card.svelte`
- [x] 6.2 Implement card face rendering with suit symbols and rank display, colored red/black by suit in `Card.svelte`
- [x] 6.3 Implement card back pattern styling in `Card.svelte` scoped CSS
- [x] 6.4 Add CSS 3D flip animation using `transform: rotateY(180deg)` and `backface-visibility: hidden` in `Card.svelte`
- [x] 6.5 Add Svelte `flip()` spring animation for deal transitions in `Card.svelte`
- [x] 6.6 Add hover elevation effect via CSS transition on scoped styles in `Card.svelte`
- [x] 6.7 Define shared card dimension CSS custom properties (`--card-width`, `--card-height`, `--card-radius`) in a global style file

## 7. Player Seat Component

- [x] 7.1 Create `PlayerSeat.svelte` component with props: player (PlayerSeat), isCurrentTurn, isHuman in `src/lib/components/PlayerSeat.svelte`
- [x] 7.2 Render player name, chip count, and current bet amount in `PlayerSeat.svelte`
- [x] 7.3 Render hole cards using `Card` component with flip state based on visibility rules in `PlayerSeat.svelte`
- [x] 7.4 Add visual indicator for current turn (highlight/glow) in `PlayerSeat.svelte`
- [x] 7.5 Add folded player styling (dimmed, semi-transparent) in `PlayerSeat.svelte`

## 8. Poker Table UI

- [x] 8.1 Create `PokerTable.svelte` component with CSS Grid oval layout for up to 9 seats in `src/lib/components/PokerTable.svelte`
- [x] 8.2 Implement seat positioning using CSS Grid areas arranged in oval pattern in `PokerTable.svelte`
- [x] 8.3 Render community card area in table center with dynamic card display in `PokerTable.svelte`
- [x] 8.4 Add pot display component in table center showing current pot value in `PokerTable.svelte`
- [x] 8.5 Implement dealer button indicator positioned at current dealer seat in `PokerTable.svelte`

## 9. Action Controls

- [x] 9.1 Create `BetControls.svelte` component with Check, Call, Raise, Fold, All-In buttons in `src/lib/components/BetControls.svelte`
- [x] 9.2 Implement conditional button visibility based on current game state (check vs call logic) in `BetControls.svelte`
- [x] 9.3 Add raise amount input with min/max validation in `BetControls.svelte`
- [x] 9.4 Wire button clicks to dispatch action events to parent component in `BetControls.svelte`

## 10. Integration & Page Assembly

- [x] 10.1 Replace `src/routes/+page.svelte` with poker game page that composes `PokerTable`, `PlayerSeat`, and `BetControls`
- [x] 10.2 Initialize game state using Svelte 5 `$state` rune in the page component
- [x] 10.3 Wire human player actions from `BetControls` to game engine pure functions, updating reactive state
- [x] 10.4 Implement basic AI opponent logic: random valid action selection with small delay between turns
- [x] 10.5 Add "New Hand" button to start next hand after showdown completion
- [x] 10.6 Update `src/routes/+layout.svelte` with dark background suitable for poker table aesthetic
- [ ] 10.7 Manual playtest: verify full hand flow from deal through showdown with all betting rounds