* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background: #121213;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    color: #fff;
}

.game-container {
    text-align: center;
    background: #1e1e24;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

h1 {
    font-size: 2rem;
    letter-spacing: 3px;
    margin-bottom: 10px;
    color: #eee;
}

.status {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: #00adb5;
    font-weight: 600;
}

.board {
    display: grid;
    grid-template-columns: repeat(3, 100px);
    grid-template-rows: repeat(3, 100px);
    gap: 10px;
    margin-bottom: 25px;
}

.cell {
    background: #2a2a35;
    border-radius: 8px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2.5rem;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
    user-select: none;
}

.cell:hover {
    background: #333344;
}

.cell:active {
    transform: scale(0.95);
}

/* Color coding X and O */
.cell.X {
    color: #00adb5;
}

.cell.O {
    color: #ff5722;
}

button {
    padding: 12px 25px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    background: #393e46;
    color: #eee;
    transition: all 0.2s ease;
}

button:hover {
    background: #00adb5;
    color: #fff;
    transform: translateY(-2px);
}