.article-entry > table {
    width: auto;
    max-width: 100%;
}

.article-entry > table th,
.article-entry > table td {
    padding-left: 0.5rem;
    padding-right: 0.5rem;
    border-right: 1px solid #eee;
    border-left: 1px solid #eee;
}

.article-entry > table th[align="right"],
.article-entry > table td[align="right"] {
    text-align: right;
}

.article-entry > table th[align="center"],
.article-entry > table td[align="center"] {
    text-align: center;
}

.negbin-converter {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 16px;
    margin: 1.4em 0;
    padding: 16px;
    border: 1px solid #d8d8d8;
    border-radius: 6px;
    background: #fbfbf8;
}

.negbin-converter label {
    display: grid;
    gap: 6px;
    margin: 0;
}

.negbin-converter label span {
    color: #555;
    font-size: 0.9em;
}

.negbin-converter input {
    box-sizing: border-box;
    width: 100%;
    padding: 0.55em 0.65em;
    border: 1px solid #cfcfcf;
    border-radius: 4px;
    background: #fff;
    color: #222;
    font: 18px/1.35 Consolas, "Liberation Mono", Menlo, monospace;
}

.negbin-converter-result,
.negbin-converter-note {
    grid-column: 1 / -1;
}

.negbin-converter-result {
    color: #174a86;
    font-weight: 700;
}

.negbin-converter-note {
    color: #555;
    font-family: Consolas, "Liberation Mono", Menlo, monospace;
    overflow-x: auto;
}

.negbin-converter.has-error .negbin-converter-note {
    color: #9a3d25;
    font-family: inherit;
}

.negbin-mul-steps {
    grid-column: 1 / -1;
}

.negbin-mul-steps table {
    width: auto;
    margin: 0.4rem 0 0;
}

.negbin-mul-steps th,
.negbin-mul-steps td {
    padding: 0.25rem 0.55rem;
}

.negbin-tabs {
    margin: 1.4em 0;
}

.negbin-tabs-list {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 0;
    border-bottom: 1px solid #d8d8d8;
}

.negbin-tab-button {
    appearance: none;
    margin: 0 0 -1px;
    padding: 0.55em 0.85em;
    border: 1px solid transparent;
    border-radius: 6px 6px 0 0;
    background: transparent;
    color: #555;
    font: inherit;
    cursor: pointer;
}

.negbin-tab-button:hover,
.negbin-tab-button:focus-visible {
    color: #0f5f57;
    outline: none;
}

.negbin-tab-button.is-active {
    border-color: #d8d8d8;
    border-bottom-color: #fff;
    background: #fff;
    color: #222;
}

.negbin-tab-panel {
    padding: 1em 0 0;
}

.negbin-tab-panel[hidden] {
    display: none;
}

.negbin-tab-panel > table {
    width: auto;
    max-width: 100%;
}

.negbin-tab-panel > table th,
.negbin-tab-panel > table td {
    padding-left: 0.5rem;
    padding-right: 0.5rem;
    border-right: 1px solid #eee;
    border-left: 1px solid #eee;
}

.negbin-tab-panel > table th[align="right"],
.negbin-tab-panel > table td[align="right"] {
    text-align: right;
}

.negbin-tab-panel > table th[align="center"],
.negbin-tab-panel > table td[align="center"] {
    text-align: center;
}



.negbin-add-widget {
    --negbin-cell: 2.05em;
    --negbin-add-width: 5;
    margin: 1.4em 0;
    padding: 18px 18px 16px;
    border: 1px solid #d8d8d8;
    border-radius: 6px;
    background: #fbfbf8;
    color: #333;
    cursor: ew-resize;
    user-select: none;
    touch-action: none;
}

.negbin-add-paper {
    display: inline-block;
    padding: 12px 14px 10px;
    border-left: 3px solid #7aa;
    background: #fff;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
    font: 18px/1.45 Consolas, "Liberation Mono", Menlo, monospace;
}

.negbin-add-row {
    display: grid;
    grid-template-columns: 1.2em auto 4em;
    align-items: center;
    min-height: 1.5em;
}

.negbin-add-carry {
    display: grid;
    grid-template-columns: repeat(var(--negbin-add-width), var(--negbin-cell));
    width: calc(var(--negbin-add-width) * var(--negbin-cell));
    margin-left: 1.2em;
    color: #9a5b00;
}

.negbin-add-carry::before,
.negbin-add-carry::after {
    content: none;
}

.negbin-add-sign {
    color: #666;
}

.negbin-add-digits {
    display: grid;
    grid-template-columns: repeat(var(--negbin-add-width), var(--negbin-cell));
    text-align: center;
}

.negbin-add-digit {
    min-width: var(--negbin-cell);
    text-align: center;
    border-radius: 4px;
    transition: background 120ms ease, color 120ms ease, opacity 120ms ease;
}

.negbin-add-digit.is-empty {
    opacity: 0;
}

.negbin-add-digit.is-active {
    background: #e3f2ef;
    color: #0f5f57;
}

.negbin-add-result-row {
    color: #174a86;
    font-weight: 700;
}

.negbin-add-rule {
    width: calc(1.2em + var(--negbin-add-width) * var(--negbin-cell));
    margin: 2px 0 4px;
    border-top: 2px solid #555;
}

.negbin-add-value {
    padding-left: 0.75em;
    color: #666;
    font-weight: 400;
}

.negbin-add-step {
    min-height: 2.8em;
    margin-top: 12px;
    color: #444;
}

.negbin-add-track {
    position: relative;
    height: 4px;
    margin-top: 10px;
    border-radius: 999px;
    background: #ddd;
    overflow: hidden;
}

.negbin-add-track span {
    position: absolute;
    right: 0;
    top: 0;
    display: block;
    height: 100%;
    width: 0;
    background: #3c8d86;
}

@media (max-width: 600px) {
    .negbin-converter {
        grid-template-columns: 1fr;
    }

    .negbin-add-widget {
        --negbin-cell: 1.55em;
        padding: 14px 12px;
    }

    .negbin-add-paper {
        font-size: 16px;
    }
}