body {
    font-family: Arial, sans-serif;
    margin: 20px;
    background-color: #f0f0f0;
}

.container {
    max-width: 800px;
    margin: 0 auto;
}

h1 {
    text-align: center;
    color: #333;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.card {
    background-color: #fff;
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    text-decoration: none;
    color: #333;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    transition: transform 0.2s;
}

.card:hover {
    transform: translateY(-5px);
}

.card h3 {
    margin-top: 0;
}

.card p {
    font-size: 14px;
    color: #666;
}

.back-link {
    display: block;
    margin-bottom: 20px;
    text-align: center;
}

    .generate-button {
        padding: 15px 30px;
        background-color: #4CAF50;
        color: white;
        border: none;
        border-radius: 8px;
        cursor: pointer;
        font-size: 18px;
        margin-top: 30px;
        margin-bottom: 30px;
    }

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

    .input-area {
        background-color: #f9f9f9;
        border: 1px solid #ddd;
        border-radius: 8px;
        padding: 20px;
        margin: 20px auto;
        max-width: 600px;
        display: flex;
        flex-direction: column;
        gap: 15px;
        align-items: center;
    }

    .input-area label {
        font-weight: bold;
        color: #555;
    }

    .input-area input[type="number"],
    .input-area select {
        padding: 8px;
        border: 1px solid #ccc;
        border-radius: 4px;
        width: 100%;
        max-width: 200px;
    }

    .input-area button {
        margin-top: 10px;
    }

    .operator-group {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        justify-content: center;
        margin-top: 10px;
    }

    .operator-group label {
        font-weight: normal;
    }

    .operator-group input[type="checkbox"] {
        width: auto;
        margin-left: 5px;
    }

    .input-group {
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .input-group label {
        margin-bottom: 0;
    }

    .input-group input[type="number"] {
        width: 80px;
    }

    .equation-container {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-around;
    }

    .equation-column {
        flex: 1 1 auto; /* Allow columns to grow and shrink */
        min-width: 150px; /* Minimum width to prevent squishing */
        padding: 10px;
        box-sizing: border-box;
    }

    .equation-column ul {
        padding: 0;
        margin: 0;
        list-style-type: none;
    }

    .equation-column li {
        margin-bottom: 10px;
    }

    .minesweeper-controls {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        align-items: center;
        gap: 15px;
        margin-bottom: 20px;
        padding: 15px;
        background-color: #f0f0f0;
        border-radius: 8px;
        border: 1px solid #ddd;
    }

    .minesweeper-button {
        padding: 12px 25px;
        font-size: 16px;
        background-color: #007bff;
        color: white;
        border: none;
        border-radius: 5px;
        cursor: pointer;
        transition: background-color 0.3s ease;
    }

    .minesweeper-button:hover {
        background-color: #0056b3;
    }

    .minesweeper-select {
        padding: 10px;
        font-size: 16px;
        border-radius: 5px;
        border: 1px solid #ccc;
    }

@media print {
    .back-link {
        display: none;
    }

    .no-print {
        display: none;
    }
}