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

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

.container {
    text-align: center;
}

h1 {
    margin-bottom: 10px;
}

#status {
    margin-bottom: 15px;
    font-size: 18px;
}

.board {
    display: grid;
    grid-template-columns: repeat(3, 100px);
    grid-gap: 10px;
    margin-bottom: 15px;
}

.cell {
    width: 100px;
    height: 100px;
    background: #1e293b;
    font-size: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: 10px;
    transition: background 0.3s;
}

.cell:hover {
    background: #334155;
}

button {
    padding: 10px 20px;
    font-size: 16px;
    background: #22c55e;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}

button:hover {
    background: #16a34a;
}