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

body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #f0f2f5;
}

.container {
    text-align: center;
}

h1 {
    color: #333;
    margin-bottom: 20px;
}

.status {
    margin-bottom: 20px;
    font-size: 1.2rem;
    font-weight: bold;
    color: #444;
}

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

.cell {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    aspect-ratio: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2.5rem;
    cursor: pointer;
    transition: background-color 0.2s;
}

.cell:hover {
    background-color: #f8f9fa;
}

button {
    padding: 10px 20px;
    font-size: 1rem;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.2s;
}

button:hover {
    background-color: #0056b3;
}