/* 文档转换 · 与换算与媒体其它工具一致的 app-panel 布局 */
.doc-panel {
    margin-top: 0;
}

.doc-hint {
    color: var(--color-muted, #7f8c8d);
    font-size: 0.95rem;
    line-height: 1.55;
    margin: 0 0 1.25rem;
}

.doc-upload {
    margin: 1rem 0 1.25rem;
    padding: 1.5rem 1.25rem;
    border: 2px dashed var(--line-hard);
    text-align: center;
    transition: border-color 0.2s;
}

.doc-upload:hover {
    border-color: var(--color-theme-deep);
}

.doc-upload input[type="file"] {
    display: none;
}

.doc-upload-btn {
    display: inline-block;
    padding: 10px 20px;
    background: var(--gradient-theme);
    color: var(--color-theme-ink);
    cursor: pointer;
    font-weight: 500;
}

.doc-file-name {
    margin-top: 0.75rem;
    color: #7f8c8d;
    word-break: break-all;
}

.doc-options {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem 1.5rem;
    align-items: center;
    margin: 1rem 0;
}

.doc-options label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.doc-options select,
.doc-options input[type="number"] {
    padding: 8px 12px;
    border: 1px solid #bdc3c7;
    font-size: 1rem;
}

.doc-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
    margin: 1.25rem 0;
}

.doc-primary-btn {
    padding: 12px 25px;
    background: var(--gradient-theme);
    color: var(--color-theme-ink);
    border: none;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
}

.doc-primary-btn:hover:not(:disabled) {
    background: var(--gradient-theme-reverse);
}

.doc-primary-btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.doc-secondary-btn {
    padding: 12px 20px;
    background: var(--color-card);
    color: var(--color-ink, #0a0a0a);
    border: 1px solid var(--line-hard, #bdc3c7);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
}

.doc-secondary-btn:hover:not(:disabled) {
    border-color: var(--color-theme-deep);
    background: var(--color-theme-wash, #fffde7);
}

.doc-secondary-btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.doc-page-picker {
    margin: 1rem 0 0.5rem;
    min-width: 0;
}

.doc-page-picker__hint {
    margin: 0 0 0.65rem;
    font-size: 0.88rem;
    color: var(--color-muted, #7f8c8d);
    line-height: 1.45;
}

.doc-pdf-preview {
    position: relative;
    box-sizing: border-box;
    width: 100%;
    min-width: 0;
    min-height: 120px;
    max-height: min(420px, 55vh);
    overflow: auto;
    border: 1px solid var(--line-ins);
    background: #f4f5f6;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 0.5rem;
}

.doc-pdf-preview canvas {
    display: block;
    max-width: 100%;
    height: auto;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.12);
}

.doc-pdf-preview__loading {
    margin: 2rem 1rem;
    color: var(--color-muted, #7f8c8d);
    font-size: 0.92rem;
    text-align: center;
    line-height: 1.5;
    word-break: break-word;
}

.doc-pdf-preview__error {
    color: #c0392b;
}

.doc-page-nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 0.5rem 0.75rem;
    margin-top: 0.75rem;
}

.doc-page-nav__btn {
    width: 40px;
    height: 40px;
    padding: 0;
    border: 1px solid var(--line-hard, #bdc3c7);
    background: var(--color-card);
    font-size: 1.35rem;
    line-height: 1;
    cursor: pointer;
}

.doc-page-nav__btn:hover:not(:disabled) {
    border-color: var(--color-theme-deep);
    background: var(--color-theme-wash, #fffde7);
}

.doc-page-nav__btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.doc-page-nav__field {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.95rem;
}

.doc-page-nav__field input[type="number"] {
    width: 4.25rem;
    padding: 8px 8px;
    border: 1px solid #bdc3c7;
    font-size: 1rem;
    text-align: center;
}

.doc-status {
    margin: 0;
    font-size: 0.95rem;
    color: var(--color-muted, #7f8c8d);
}

.doc-status--error {
    color: #c0392b;
}

.doc-progress {
    margin-top: 0.75rem;
    height: 6px;
    background: #ecf0f1;
    overflow: hidden;
}

.doc-progress > span {
    display: block;
    height: 100%;
    width: 0%;
    background: var(--color-theme-deep, #d4c500);
    transition: width 0.15s;
}

.doc-preview-list {
    margin-top: 1.25rem;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(120px, 100%), 1fr));
    gap: 0.75rem;
    max-width: 100%;
    min-width: 0;
}

.doc-preview-item {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.doc-preview-item__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.35rem;
    margin-bottom: 0.35rem;
}

.doc-preview-item__index {
    font-size: 0.78rem;
    font-weight: 650;
    color: var(--color-muted, #7f8c8d);
    font-variant-numeric: tabular-nums;
}

.doc-preview-item__move {
    display: flex;
    gap: 2px;
    flex-shrink: 0;
}

.doc-preview-order-btn {
    width: 30px;
    height: 30px;
    padding: 0;
    border: 1px solid var(--line-hard, #bdc3c7);
    background: var(--color-card);
    font-size: 1.1rem;
    line-height: 1;
    cursor: pointer;
}

.doc-preview-order-btn:hover:not(:disabled) {
    border-color: var(--color-theme-deep);
    background: var(--color-theme-wash, #fffde7);
}

.doc-preview-order-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.doc-preview-item__name {
    margin: 0.35rem 0 0;
    font-size: 0.72rem;
    line-height: 1.35;
    color: var(--color-muted, #7f8c8d);
    word-break: break-all;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.doc-preview-cell {
    position: relative;
    box-sizing: border-box;
    width: 100%;
    min-width: 0;
    height: min(240px, 42vh);
    overflow: hidden;
    border: 1px solid var(--line-ins);
    background: #fff;
}

.doc-preview-cell img {
    position: absolute;
    inset: 0;
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
}

.doc-panel {
    min-width: 0;
    max-width: 100%;
    overflow-x: clip;
}

.doc-note {
    margin-top: 1.5rem;
    padding: 1rem;
    border: 1px solid var(--line-ins);
    background: var(--color-card);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* ipynb 阅读 */
.ipynb-cells {
    margin-top: 1rem;
}

.ipynb-cell {
    margin-bottom: 1rem;
    padding: 1rem;
    border: 1px solid var(--line-ins);
    background: var(--color-card);
}

.ipynb-cell--code pre {
    margin: 0;
    overflow-x: auto;
    font-size: 0.88rem;
    line-height: 1.45;
}

.ipynb-cell--markdown {
    line-height: 1.6;
}

.ipynb-cell-type {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: #95a5a6;
    margin-bottom: 0.5rem;
}

.feature-card--muted {
    opacity: 0.92;
}

.doc-dl-note {
    margin: 0.75rem 0 0;
    font-size: 0.88rem;
    color: var(--color-muted, #7f8c8d);
    line-height: 1.5;
}

.doc-details {
    margin-top: 1.25rem;
    font-size: 0.92rem;
}

.doc-details summary {
    cursor: pointer;
    color: var(--color-body);
}

.doc-details pre {
    margin-top: 0.75rem;
    white-space: pre-wrap;
    font-family: ui-monospace, monospace;
    font-size: 0.85rem;
}