.puzzle-title {
}

.puzzle-description {
    font-size: 1.2rem;
}

.sudoku {
    border: solid #333 4px;
    width: 100%;
    max-width: 368px;
    container-type: inline-size;
    overflow: hidden;
}

.sudoku-row  {
    display: flex;
    border-bottom: 1px solid #666;
    clear: both;
}

.sudoku-row.block  {
    border-bottom: 3px solid #333;
}

.sudoku-row.block.last  {
    border-bottom: none;
}

.sudoku-cell {
    display: flex;
    align-items: center;
    justify-content: center;
    color: #000;
    background-color: #fff;
    flex: 1 1 0;
    aspect-ratio: 1 / 1;
    text-align: center;
    font-size: 6cqw;
    font-weight: 500;
    border-right: 1px solid #666;
}

.sudoku-cell .blank {
    color: #999999;
}

.sudoku-cell.block  {
    border-right: 3px solid #333;
}

.sudoku-cell.block.last {
    border-right: none;
}

.sudoku-cell.solution {
    background-color: #d4edda;
}

.solution-explainer  {
    max-width: 380px;
}

.sudoku-solution .word {
    margin: 0 10px 5px 0;
    white-space: nowrap;
    display: inline-block;
}

.sudoku-solution .cell {
    width: 32px;
    height: 36px;
    font-size: 16px;
    line-height: 36px;
    border: #000 solid 1px;
    border-right: none;
    background-color: #fff;
    display: inline-block;
    margin-right: -5px;
    text-align: center;
}

.sudoku-solution .cell.last {
    border-right: #000 solid 1px;
}

.result.print {
    max-width: 800px;
    padding: 0.5cm;
}

@media print {
    .result.print .sudoku {
        width: 548px;
        max-width: none;
    }

    .result.print .sudoku-cell {
        font-size: 40px;
    }

    .sudoku-solution {
        font-size: 24px;
    }

    .result.print .sudoku-solution .cell {
        width: 40px;
        height: 46px;
        line-height: 46px;
        margin-left: -6px;
    }

    .solution-explainer {
        font-size: 20px;
    }
}