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

body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    font-family: Arial, sans-serif;
    background-color: #f0f4f8;
}

.game-container {
    text-align: center;
    background-color: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    max-width: 340px;
    width: 100%;
}

h1 {
    margin-bottom: 20px;
    color: #3c3c3c;
}

.game-board {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.cell {
    width: 100%;
    padding-top: 100%; /* ทำให้ช่องเป็นสี่เหลี่ยมจัตุรัส */
    position: relative;
    background-color: #e0f7fa;
    border-radius: 8px;
    font-size: 3em;
    font-weight: bold;
    color: #ff4081;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background-color 0.3s;
}

.cell:hover {
    background-color: #b2ebf2;
}

.status {
    margin-top: 20px;
    font-size: 1.2em;
    color: #3c3c3c;
}

.reset-button {
    margin-top: 10px;
    padding: 10px 20px;
    font-size: 1em;
    color: #fff;
    background-color: #00acc1;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.reset-button:hover {
    background-color: #00838f;
}

.cell.X {
    color: #ff4081;
}

.cell.O {
    color: #7e57c2;
}