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

body {
    background: #0f172a;
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.game-container {
    text-align: center;
}

h1 {
    font-size: 36px;
    color: yellow;
    margin-bottom: 10px;
}

.status {
    font-size: 20px;
    margin-bottom: 20px;
}

.board {
    display: grid;
    grid-template-columns: repeat(3, 100px);
    grid-template-rows: repeat(3, 100px);
    gap: 10px;
    justify-content: center;
    margin-bottom: 20px;
}

.cell {
    background: #1e293b;
    border-radius: 8px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    color: yellow;
    transition: 0.2s;
}

.cell:hover {
    background: #334155;
}

button {
    padding: 10px 20px;
    font-size: 16px;
    font-weight: bold;
    background: yellow;
    color: #000;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background: #eab308;
}