* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.container {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    text-align: center;
    max-width: 500px;
    width: 90%;
}

h1 {
    color: #333;
    margin-bottom: 20px;
    font-size: 2.5em;
}

.game-info {
    display: flex;
    justify-content: space-around;
    margin-bottom: 20px;
    font-size: 1.2em;
    font-weight: bold;
}

.current-player {
    color: #667eea;
}

.game-status {
    color: #764ba2;
}

.score-board {
    display: flex;
    justify-content: space-around;
    margin-bottom: 20px;
    padding: 10px;
    background: #f8f9fa;
    border-radius: 8px;
}

.player-score, .draws {
    font-weight: bold;
}

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

.cell {
    width: 90px;
    height: 90px;
    border: 2px solid #ddd;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2em;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    background: #fff;
}

.cell:hover {
    background: #f0f0f0;
    transform: scale(1.05);
}

.cell.x {
    color: #e74c3c;
}

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

.winning-cell {
    background-color: #d4edda;
    animation: pulse 0.6s ease-in-out;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

.game-controls {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.btn {
    padding: 12px 24px;
    font-size: 1em;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    background: #667eea;
    color: white;
    font-weight: bold;
}

.btn:hover {
    background: #5a6fd8;
    transform: translateY(-2px);
}

.btn:active {
    transform: translateY(0);
}

/* Responsive design */
@media (max-width: 500px) {
    .container {
        padding: 20px;
    }
    
    h1 {
        font-size: 2em;
    }
    
    .cell {
        width: 80px;
        height: 80px;
        font-size: 1.5em;
    }
    
    .game-info {
        flex-direction: column;
        gap: 10px;
    }
}