body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #000033;
    margin: 0;
}

.container {
    text-align: center;
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

#game-board {
    display: grid;
    grid-template-columns: repeat(3, 100px);
    grid-template-rows: repeat(3, 100px);
    gap: 5px;
    margin: 20px auto;
    width: 310px; /* 3*100px + 2*5px */
}

.cell {
    background-color: #eee;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    border: 1px solid #ccc;
    transition: background-color 0.1s;
}

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

#status {
    margin-bottom: 15px;
    font-size: 1.2em;
    font-weight: bold;
}

#reset-button {
    padding: 10px 20px;
    font-size: 1em;
    cursor: pointer;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 5px;
    transition: background-color 0.3s;
}

#reset-button:hover {
    background-color: #45a049;
}

/* ©týly pre ví»azné polia */
.winning-cell {
    background-color: #ffcc00; /* ®lté zvýraznenie */
}