* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Arial', sans-serif;
}

body {
    background-color: #f5f5f5;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.container {
    text-align: center;
}

h1 {
    color: #333;
    margin-bottom: 30px;
    font-size: 40px;
}

.scoreboard {
    display: flex;
    justify-content: space-around;
    font-size: 20px;
    font-weight: bold;
}

.player1-score {
    color: #e74c3c; /* X color */
}

.player2-score {
    color: #3498db; /* O color */
}

.turn-indicator {
    color: #333;
    font-weight: bold;
    margin: 20px 0;
    font-size: 18px;        
}

.board {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-gap: 10px;
    width: 300px;
    height: 300px;
    margin: 0 auto 20px;
    
}

.cell {
    background-color: white;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 60px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s;
    width: 90px;
    height: 90px;
    /* Prevent content from affecting size */
    overflow: hidden;
}

.cell:hover {
    background-color: #f9f9f9;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.cell.x {
    color: #e74c3c;
}

.cell.o {
    color: #3498db;
}

.controls {
    margin-top: 30px;
    display: flex;
    flex-wrap: wrap; /* Allow buttons to wrap to next line */
    justify-content: center;
    gap: 10px; /* Use gap for spacing between buttons */
    max-width: 300px; /* Match the board width */
    margin-left: auto;
    margin-right: auto;
}

button {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 8px 10px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.2s;
    flex: 0 0 auto;
    margin: 5px;
}

button:hover {
    background-color: #2980b9;
}

.reset-scores-button {
    background-color: #e74c3c;
}

.reset-scores-button:hover {
    background-color: #c0392b;
}

.vs-computer-button{
    background-color: #2ecc71;
}

.vs-computer-button:hover {
    background-color: #24a359;
}

/* Responsive design */
@media (max-width: 500px) {
    .board {
        width: 250px;
        height: 250px;
    }
    
    .cell {
        font-size: 50px;
        width: 75px; /* Adjust cell size for mobile */
        height: 75px;
    }
    
    .controls {
        flex-direction: column; /* Stack buttons vertically on mobile */
        align-items: center;
    }
    
    button {
        width: 150px; /* Fixed width for buttons on mobile */
        margin: 5px 0;
    }
}

.game-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 100;
}

.game-overlay.active {
    opacity: 1;
    visibility: visible;
}

.overlay-content {
    background-color: white;
    padding: 30px 50px;
    border-radius: 10px;
    text-align: center;
    transform: translateY(-20px);
    transition: all 0.4s ease;
}

.game-overlay.active .overlay-content {
    transform: translateY(0);
}

.overlay-content h2 {
    font-size: 28px;
}

.win-message-x {
    color: #e74c3c;
}

.win-message-o {
    color: #3498db;
}

.draw-message {
    color: #f39c12;
}