body {
    font-family: Arial, sans-serif;
    background: #f2f2f2;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.container {
    background: rgb(203, 203, 166);
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    width: 400px;
}

.card {
    background: #e0e0e0;
    padding: 15px;
    margin-bottom: 10px;
    border-radius: 8px;
}

.hidden {
    display: none;
}

.navigation button, .controls button {
    margin: 5px;
    padding: 8px 12px;
    cursor: pointer;
}

.controls input {
    margin: 5px;
    padding: 5px;
    width: 80%;
}