/* ── Number Sequence ── */

/* Page counter buttons */
.player-counter {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 0.5rem;
}
.player-counter button {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    background: var(--primary-color);
    color: var(--text-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}
.player-counter button:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}
.player-counter span {
    font-size: 1rem;
    min-width: 30px;
    text-align: center;
    font-weight: 500;
    color: var(--text-color);
}

/* Starting-number input */
.ns-number-input {
    width: 110px;
    padding: 0.5rem 0.7rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    text-align: center;
}
.ns-number-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(255, 215, 0, 0.15);
}

/* Page wrapper — fills A4 height, distributes rows to bottom */
.ns-page {
    display: flex;
    flex-direction: column;
    min-height: 920px;
}

/* ── Sequence worksheet area ── */
.seq-worksheet {
    flex: 1;
    padding: 0.4rem 2rem 0.6rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

/* One row — boxes grow to fill the full row width → equal margins for all sizes */
.seq-row {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: nowrap;
    width: 100%;
}

/* Number box — flex:1 so all rows are the same total width */
.seq-box {
    flex: 1;
    min-width: 0;
    border: 2px solid #333;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-family: sans-serif;
}

/* Small (default) */
.size-small  .seq-box { max-width: 65px;  height: 54px; font-size: 1.3rem;  }

/* Medium */
.size-medium .seq-box { max-width: 92px;  height: 68px; font-size: 1.75rem; }

/* Large */
.size-large  .seq-box { max-width: 145px; height: 80px; font-size: 2.1rem;  }

/* Given (filled) box */
.seq-given {
    background: #fff;
    color: #222;
}

/* Blank box */
.seq-blank {
    background: #fff;
    border-style: dashed;
    border-color: #aaa;
}

/* Answer text inside blank box — hidden until .show-answer */
.seq-answer {
    display: none;
    color: #c0392b;
    font-weight: 700;
}
.seq-blank.show-answer {
    border-style: solid;
    border-color: #c0392b;
    background: #fff8f8;
}
.seq-blank.show-answer .seq-answer {
    display: block;
}

/* Arrow between boxes */
.seq-arrow {
    font-size: 1.1rem;
    color: #666;
    flex-shrink: 0;
    user-select: none;
}

/* ── Print ── */
@media print {
    #puzzle-preview {
        width: auto !important;
        height: auto !important;
        padding: 0 !important;
        background: transparent !important;
        box-shadow: none !important;
        transform: none !important;
    }

    .ns-page {
        width: 210mm !important;
        min-height: 297mm !important;
        padding: 20mm 20mm 15mm !important;
        box-sizing: border-box !important;
        page-break-after: always;
        display: flex !important;
        background: white !important;
        margin: 0 !important;
        position: relative !important;
    }

    .ns-page:last-child {
        page-break-after: auto !important;
    }

    .seq-blank {
        border-style: dashed;
        border-color: #aaa;
        background: #fff;
    }
    .seq-answer {
        display: none !important;
    }
    .seq-blank.show-answer .seq-answer {
        display: block !important;
    }
    .seq-blank.show-answer {
        border-style: solid;
        border-color: #c0392b;
        background: #fff8f8;
    }
}