#cruciverba-container {
    font-family: Arial, sans-serif;
    max-width: 1100px;
    margin: 0 auto;
    padding: 20px;
    border: 1px solid #ccc;
    border-radius: 8px;
    background-color: #f9f9f9;
}

.controls, .explanation, .buttons {
    margin-bottom: 20px;
}

#numbers-grid, #cruciverba-grid {
    display: grid;
    gap: 5px;
    margin-bottom: 20px;
}

/* Modifiche per la griglia dei 90 numeri */
#numbers-grid {
    grid-template-columns: repeat(10, 1fr);
    font-size: 11px;
}

#numbers-grid div {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 4px;
    border: 1px solid #ddd;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s;
    background-color: #fff;
}

#numbers-grid div:hover {
    background-color: #e9e9e9;
}

#numbers-grid div.selected {
    background-color: #4CAF50;
    color: white;
    border-color: #4CAF50;
}

#cruciverba-grid {
    width: 100%;
    aspect-ratio: 1;
}

#cruciverba-grid div {
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px solid #000;
    font-weight: bold;
    font-size: 1.2em;
    background-color: #fff;
}

#selection-counter {
    text-align: center;
    font-weight: bold;
    margin-bottom: 10px;
}

.buttons {
    text-align: center;
}

.buttons button {
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
    border: none;
    border-radius: 5px;
    color: white;
    margin: 0 10px;
}

#generate-combinations {
    background-color: #007bff;
}

#export-pdf {
    background-color: #dc3545;
}

#results {
    margin-top: 20px;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    background-color: #fff;
    white-space: pre-wrap;
    font-family: monospace;
}