diff --git a/script.js b/script.js
index 43cfa50..1e1ccf8 100644
--- a/script.js
+++ b/script.js
@@ -24,29 +24,9 @@ document.addEventListener('DOMContentLoaded', function() {
     generateKeyboard();
 });
 
-function toggleTheme() {
-    const themeIcon = document.querySelector('.theme-icon');
-    
-    if (themeIcon.textContent === '🌙') {
-        themeIcon.textContent = '☀️';
-    } else {
-        themeIcon.textContent = '🌙';
-    }
-}
-
-function switchTab(tabName) {
-    const tabs = document.querySelectorAll('.tab-content');
-    tabs.forEach(tab => tab.classList.remove('active'));
-    
-    const tabButtons = document.querySelectorAll('.tab');
-    tabButtons.forEach(btn => btn.classList.remove('active'));
-    
-    document.getElementById(tabName).classList.add('active');
-    event.target.classList.add('active');
-}
-
+// Load words from localStorage or default
 function loadWordBank() {
-    const stored = localStorage.getItem('wordBank');
+    const stored = localStorage.getItem('devopsWords');
     if (stored) {
         wordBank = JSON.parse(stored);
     } else {
@@ -56,10 +36,12 @@ function loadWordBank() {
     displayWordBank();
 }
 
+// Save wordBank to localStorage
 function saveWordBank() {
     localStorage.setItem('devopsWords', JSON.stringify(wordBank));
 }
 
+// Display the word bank
 function displayWordBank() {
     const wordList = document.getElementById('wordList');
     const wordCount = document.getElementById('wordCount');
@@ -91,32 +73,65 @@ function displayWordBank() {
     });
 }
 
+// ADD WORD: validate, reject duplicates, invalid chars
 function addWord() {
     const input = document.getElementById('newWord');
     const word = input.value.trim().toUpperCase();
-
+    
+    if (!word) {
+        alert('Cannot add empty word!');
+        return;
+    }
+    if (wordBank.includes(word)) {
+        alert('Word already exists!');
+        return;
+    }
+    if (/[^A-Z]/.test(word)) {
+        alert('Word can only contain letters A-Z!');
+        return;
+    }
+    
     wordBank.push(word);
     input.value = '';
     saveWordBank();
     displayWordBank();
 }
 
+// EDIT WORD: validate, prevent duplicates, valid letters only
 function editWord(index) {
     const newWord = prompt('Edit word:', wordBank[index]);
-    if (newWord) {
-        wordBank.splice(index, 1);
-        saveWordBank();
-        displayWordBank();
+    if (!newWord) return;
+    
+    const word = newWord.trim().toUpperCase();
+    
+    if (!word) {
+        alert('Cannot set empty word!');
+        return;
+    }
+    if (wordBank.includes(word) && word !== wordBank[index]) {
+        alert('Word already exists!');
+        return;
     }
+    if (/[^A-Z]/.test(word)) {
+        alert('Word can only contain letters A-Z!');
+        return;
+    }
+    
+    wordBank[index] = word;
+    saveWordBank();
+    displayWordBank();
 }
 
+// DELETE WORD: confirm deletion, update localStorage
 function deleteWord(index) {
     if (confirm('Are you sure you want to delete this word?')) {
+        wordBank.splice(index, 1);
         saveWordBank();
         displayWordBank();
     }
 }
 
+// GENERATE KEYBOARD
 function generateKeyboard() {
     const keyboard = document.getElementById('keyboard');
     const letters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
@@ -132,6 +147,7 @@ function generateKeyboard() {
     }
 }
 
+// START GAME
 function startGame() {
     const p1Name = document.getElementById('player1Name').value.trim();
     const p2Name = document.getElementById('player2Name').value.trim();
@@ -147,35 +163,40 @@ function startGame() {
     nextRound();
 }
 
+// NEXT ROUND: alternate players, pick random word
 function nextRound() {
     if (wordBank.length === 0) {
         alert('No words in the word bank! Add some words first.');
         return;
     }
-    
+
     gameState.guessedLetters = [];
     gameState.wrongGuesses = 0;
     gameState.gameActive = true;
-    
-    const randomIndex = Math.floor(Math.random() * wordBank.length);
+
+    let randomIndex;
+    do {
+        randomIndex = Math.floor(Math.random() * wordBank.length);
+    } while (wordBank[randomIndex] === gameState.currentWord && wordBank.length > 1);
+
     gameState.currentWord = wordBank[randomIndex];
-    
-    document.getElementById('gameStatus').classList.remove('show');
+
     document.getElementById('gameStatus').className = 'game-status';
     resetHangman();
     resetKeyboard();
     updateWordDisplay();
     updateWrongLetters();
     updateLives();
+
+    gameState.currentPlayer = gameState.currentPlayer === 1 ? 2 : 1;
     updateCurrentPlayer();
 }
 
+// GUESS LETTER
 function guessLetter(letter) {
     if (!gameState.gameActive) return;
     
-    if (gameState.guessedLetters.includes(letter)) {
-        return;
-    }
+    if (gameState.guessedLetters.includes(letter)) return;
     
     gameState.guessedLetters.push(letter);
     
@@ -190,129 +211,83 @@ function guessLetter(letter) {
     checkGameStatus();
 }
 
+// UPDATE DISPLAY
 function updateWordDisplay() {
     const display = document.getElementById('wordDisplay');
-    let displayText = '';
-    
-    for (let letter of gameState.currentWord) {
-        if (gameState.guessedLetters.includes(letter)) {
-            displayText += letter + ' ';
-        } else {
-            displayText += '_ ';
-        }
-    }
-    
-    display.textContent = displayText.trim();
+    display.textContent = [...gameState.currentWord].map(l => gameState.guessedLetters.includes(l) ? l : '_').join(' ');
 }
 
 function updateWrongLetters() {
     const wrongLettersDiv = document.getElementById('wrongLetters');
-    const wrong = gameState.guessedLetters.filter(letter => 
-        !gameState.currentWord.includes(letter)
-    );
-    
-    if (wrong.length === 0) {
-        wrongLettersDiv.textContent = 'None yet';
-    } else {
-        wrongLettersDiv.textContent = gameState.guessedLetters.join(', ');
-    }
+    const wrong = gameState.guessedLetters.filter(l => !gameState.currentWord.includes(l));
+    wrongLettersDiv.textContent = wrong.length ? wrong.join(', ') : 'None yet';
 }
 
 function updateLives() {
-    const livesLeft = gameState.maxWrong - gameState.wrongGuesses + 1;
+    const livesLeft = gameState.maxWrong - gameState.wrongGuesses;
     document.getElementById('livesLeft').textContent = livesLeft;
 }
 
+// HANGMAN
 function updateHangman() {
-    const parts = ['head', 'body', 'leftArm', 'rightArm', 'leftLeg', 'rightLeg'];
-    
     const wrongOrder = ['head', 'leftArm', 'rightArm', 'body', 'leftLeg', 'rightLeg'];
     const partIndex = gameState.wrongGuesses - 1;
-    
     if (partIndex >= 0 && partIndex < wrongOrder.length) {
-        const partToShow = wrongOrder[partIndex];
-        document.getElementById(partToShow).style.display = 'block';
+        document.getElementById(wrongOrder[partIndex]).style.display = 'block';
     }
 }
 
 function resetHangman() {
-    const parts = ['head', 'body', 'leftArm', 'rightArm', 'leftLeg', 'rightLeg'];
-    parts.forEach(part => {
-        document.getElementById(part).style.display = 'none';
+    ['head','body','leftArm','rightArm','leftLeg','rightLeg'].forEach(id => {
+        document.getElementById(id).style.display = 'none';
     });
 }
 
 function resetKeyboard() {
-    const letters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
-    for (let letter of letters) {
-        const button = document.getElementById('key-' + letter);
-        if (button) {
-            button.disabled = false;
-        }
-    }
+    'ABCDEFGHIJKLMNOPQRSTUVWXYZ'.split('').forEach(letter => {
+        const btn = document.getElementById('key-' + letter);
+        if (btn) btn.disabled = false;
+    });
 }
 
+// PLAYER DISPLAY
 function updateCurrentPlayer() {
-    const player1Div = document.getElementById('player1Score');
-    const player2Div = document.getElementById('player2Score');
+    const p1Div = document.getElementById('player1Score');
+    const p2Div = document.getElementById('player2Score');
     
-    if (gameState.currentPlayer === 1) {
-        player1Div.classList.add('active');
-        player2Div.classList.remove('active');
-    } else {
-        player1Div.classList.remove('active');
-        player2Div.classList.add('active');
-    }
+    p1Div.classList.toggle('active', gameState.currentPlayer === 1);
+    p2Div.classList.toggle('active', gameState.currentPlayer === 2);
 }
 
+// GAME STATUS
 function checkGameStatus() {
-    const allLettersGuessed = [...gameState.currentWord].every(letter =>
-        gameState.guessedLetters.includes(letter)
-    );
+    const allGuessed = [...gameState.currentWord].every(l => gameState.guessedLetters.includes(l));
     
-    if (allLettersGuessed) {
-        gameWon();
-        return;
-    }
-    
-    if (gameState.wrongGuesses >= gameState.maxWrong) {
-        gameLost();
-        return;
-    }
+    if (allGuessed) gameWon();
+    else if (gameState.wrongGuesses >= gameState.maxWrong) gameLost();
 }
 
 function gameWon() {
     gameState.gameActive = false;
+    const winner = gameState.currentPlayer === 1 ? gameState.player2 : gameState.player1;
+    winner.score += 10;
+    document.getElementById('score1').textContent = gameState.player1.score;
+    document.getElementById('score2').textContent = gameState.player2.score;
     
-    if (gameState.currentPlayer === 1) {
-        gameState.player2.score += 10;
-        document.getElementById('score2').textContent = gameState.player2.score;
-    } else {
-        gameState.player1.score += 10;
-        document.getElementById('score1').textContent = gameState.player1.score;
-    }
-    
+    const winnerName = winner.name;
     const statusDiv = document.getElementById('gameStatus');
-    const statusMsg = document.getElementById('statusMessage');
-    
-    const winnerName = gameState.currentPlayer === 1 ? 
-        gameState.player2.name : gameState.player1.name;
-    
-    statusMsg.textContent = `🎉 ${winnerName} won! The word was: ${gameState.currentWord}`;
+    document.getElementById('statusMessage').textContent = `🎉 ${winnerName} won! The word was: ${gameState.currentWord}`;
     statusDiv.classList.add('show', 'winner');
 }
 
 function gameLost() {
     gameState.gameActive = false;
+    const currentPlayerName = gameState.currentPlayer === 1 ? gameState.player1.name : gameState.player2.name;
     
     const statusDiv = document.getElementById('gameStatus');
-    const statusMsg = document.getElementById('statusMessage');
-    
-    const currentPlayerName = gameState.currentPlayer === 1 ? 
-        gameState.player1.name : gameState.player2.name;
-    
-    statusMsg.textContent = `😢 ${currentPlayerName} lost! The word was: ${gameState.currentWord}`;
+    document.getElementById('statusMessage').textContent = `😢 ${currentPlayerName} lost! The word was: ${gameState.currentWord}`;
     statusDiv.classList.add('show', 'loser');
     
     gameState.currentPlayer = gameState.currentPlayer === 1 ? 2 : 1;
+    updateCurrentPlayer();
 }