/* ===== Printable Sudoku – screen & print ===== */

/* Screen: print header */
.print-header {
    text-align: center;
    padding: 1rem 0.5rem;
    margin-bottom: 1rem;
    border-radius: 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-grid);
}

.print-header-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 0.25rem 0;
    letter-spacing: 0.02em;
}

.print-header-url {
    font-size: 0.9rem;
    color: var(--accent);
    margin: 0 0 0.5rem 0;
    font-weight: 500;
}

.print-header-motto {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin: 0;
}

/* Screen: credit (footer only when printing) */
.print-credit {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
    text-align: center;
}

.print-credit-footer.print-only {
    display: none;
}

/* Screen: puzzles grid container */
.print-puzzles-grid {
    display: grid;
    gap: 1.5rem;
    justify-items: center;
    align-content: start;
}

.print-puzzles-grid[data-count="1"] {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin: 0 auto;
}

.print-puzzles-grid[data-count="2"] {
    grid-template-columns: repeat(2, 1fr);
    max-width: 900px;
    margin: 0 auto;
}

.print-puzzles-grid[data-count="3"],
.print-puzzles-grid[data-count="4"] {
    grid-template-columns: repeat(2, 1fr);
    max-width: 900px;
    margin: 0 auto;
}

/* Screen: puzzle block and grid */
.printable-page .print-puzzle-block {
    padding: 1rem;
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid var(--border-grid);
}

.printable-page .print-puzzle-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    text-align: center;
}

.printable-page .print-grid {
    border-collapse: collapse;
    margin: 0 auto;
    font-size: clamp(12px, 2vw, 18px);
    color: var(--text-primary);
}

.printable-page .print-grid td {
    width: 2em;
    height: 2em;
    min-width: 24px;
    min-height: 24px;
    border: 1px solid var(--border-grid);
    text-align: center;
    vertical-align: middle;
    font-weight: 600;
}

.printable-page .print-grid td.cell-right {
    border-right-width: 2px;
    border-right-color: var(--border-box);
}

.printable-page .print-grid td.cell-bottom {
    border-bottom-width: 2px;
    border-bottom-color: var(--border-box);
}

/* ===== Print: A4 single page – larger grids for readability ===== */
@media print {
    @page {
        size: A4;
        margin: 10mm;
    }

    .no-print,
    nav,
    footer,
    .navbar,
    .btn,
    .form-select,
    .form-label,
    form {
        display: none !important;
    }

    body {
        background: #fff !important;
        color: #000 !important;
        margin: 0;
        padding: 0;
    }

    .printable-area {
        padding: 0 !important;
        max-width: 100% !important;
    }

    /* Print header – stylish, stands out */
    .print-header {
        text-align: center !important;
        padding: 6mm 0 8mm 0 !important;
        margin: 0 0 6mm 0 !important;
        border: none !important;
        border-radius: 0 !important;
        background: transparent !important;
        border-bottom: 2px solid #000 !important;
    }

    .print-header-title {
        font-size: 22pt !important;
        font-weight: 700 !important;
        color: #000 !important;
        margin: 0 0 2mm 0 !important;
        letter-spacing: 0.05em;
    }

    .print-header-url {
        font-size: 12pt !important;
        color: #333 !important;
        margin: 0 0 3mm 0 !important;
        font-weight: 600 !important;
    }

    .print-header-motto {
        font-size: 10pt !important;
        color: #555 !important;
        margin: 0 !important;
    }

    /* Credit footer */
    .print-credit {
        font-size: 10pt;
        color: #333 !important;
        margin-bottom: 6px !important;
        text-align: center;
    }

    .print-credit-footer.print-only {
        display: block !important;
        margin: 8px 0 0 0 !important;
        padding-top: 4px;
        font-size: 9pt;
        color: #666 !important;
    }

    /* Grid: fit on one A4 with larger, readable grids */
    .print-puzzles-grid {
        display: grid !important;
        gap: 8mm 10mm !important;
        justify-items: center;
        align-content: center;
        page-break-inside: avoid;
    }

    .print-puzzles-grid[data-count="1"] {
        grid-template-columns: 1fr !important;
        margin-top: 2mm !important;
    }

    .print-puzzles-grid[data-count="2"] {
        grid-template-columns: 1fr 1fr !important;
        margin-top: 2mm !important;
    }

    .print-puzzles-grid[data-count="3"],
    .print-puzzles-grid[data-count="4"] {
        grid-template-columns: 1fr 1fr !important;
        margin-top: 2mm !important;
    }

    .print-puzzle-block {
        margin: 0 !important;
        padding: 2mm 0 !important;
        background: transparent !important;
        border: none !important;
        border-radius: 0 !important;
        page-break-inside: avoid;
    }

    .print-puzzle-title {
        font-size: 11pt !important;
        font-weight: 600;
        color: #000 !important;
        margin-bottom: 3px !important;
    }

    /* Grid cells – base */
    .print-grid {
        border-collapse: collapse;
        margin: 0 auto;
        color: #000 !important;
    }

    .print-grid td {
        border: 1px solid #333 !important;
        text-align: center;
        vertical-align: middle;
        font-weight: 600;
        color: #000 !important;
    }

    .print-grid td.cell-right {
        border-right-width: 2px !important;
        border-right-color: #000 !important;
    }

    .print-grid td.cell-bottom {
        border-bottom-width: 2px !important;
        border-bottom-color: #000 !important;
    }

    /* 1 puzzle: large grid – ~120mm, cell ~13mm */
    .print-puzzles-grid[data-count="1"] .print-grid {
        font-size: 20pt;
    }
    .print-puzzles-grid[data-count="1"] .print-grid td {
        width: 13mm;
        height: 13mm;
        min-width: 13mm;
        min-height: 13mm;
    }

    /* 2 puzzles: medium-large – each grid ~85mm, cell ~9.5mm */
    .print-puzzles-grid[data-count="2"] .print-grid {
        font-size: 16pt;
    }
    .print-puzzles-grid[data-count="2"] .print-grid td {
        width: 9.5mm;
        height: 9.5mm;
        min-width: 9.5mm;
        min-height: 9.5mm;
    }

    /* 3 or 4 puzzles: readable 2x2 – each grid ~75mm, cell ~8mm */
    .print-puzzles-grid[data-count="3"] .print-grid,
    .print-puzzles-grid[data-count="4"] .print-grid {
        font-size: 13pt;
    }
    .print-puzzles-grid[data-count="3"] .print-grid td,
    .print-puzzles-grid[data-count="4"] .print-grid td {
        width: 8mm;
        height: 8mm;
        min-width: 8mm;
        min-height: 8mm;
    }
}