body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #282c34;
    margin: 0;
    color: #61dafb;
}

.game-container {
    text-align: center;
    background-color: #20232a;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

h1 {
    margin: 0;
    font-size: 2.5em;
}

button {
    padding: 10px 20px;
    font-size: 1em;
    margin-top: 20px;
    cursor: pointer;
    border: none;
    border-radius: 5px;
    background-color: #61dafb;
    color: #20232a;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #21a1f1;
}

.score-board {
    margin-top: 20px;
}

.game-board {
    display: grid;
    grid-template-columns: repeat(4, 100px);
    grid-gap: 10px;
    justify-content: center;
    margin-top: 20px;
}

.card {
    width: 100px;
    height: 100px;
    background-color: #61dafb;
    border: 2px solid #20232a;
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    color: transparent;
    transition: transform 0.3s;
}

.card.flipped {
    color: #20232a;
    background-color: #ffffff;
    transform: rotateY(180deg);
}

.card:hover {
    transform: scale(1.1);
}