/* 文件转Markdown工具专用样式 */

/* 输入标签页样式 */
.input-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.tab-btn {
    padding: 0.75rem 1.25rem;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tab-btn:hover {
    color: var(--primary-color);
    background: rgba(0, 123, 255, 0.05);
}

.tab-btn.active {
    color: var(--primary-color);
    background: var(--bg-white);
    border-bottom: 2px solid var(--primary-color);
    margin-bottom: -2px;
}

.tab-btn i {
    font-size: 1.1rem;
}

/* 标签内容区域 */
.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-content.active {
    display: block;
}

/* 上传区域 */
.upload-section {
    margin-bottom: 1.5rem;
}

.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    text-align: center;
    background: var(--bg-white);
    cursor: pointer;
    transition: var(--transition-normal);
}

.upload-area:hover,
.upload-area.dragover {
    border-color: var(--primary-color);
    background: rgba(0, 123, 255, 0.03);
}

.upload-area .upload-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.upload-area h3 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.upload-area p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* 文件列表 */
.file-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1rem;
}

.file-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-light);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    max-width: 250px;
}

.file-item i {
    color: var(--primary-color);
}

.file-item .file-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-item .file-remove {
    cursor: pointer;
    color: var(--danger-color);
    transition: var(--transition-fast);
}

.file-item .file-remove:hover {
    transform: scale(1.2);
}

/* URL输入区域 */
.url-input-section {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.url-input-section input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
}

.url-input-section input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.url-preview {
    padding: 1rem;
    background: var(--bg-light);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* 剪贴板区域 */
.paste-section {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.paste-section textarea {
    width: 100%;
    min-height: 150px;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    resize: vertical;
    line-height: 1.6;
}

.paste-section textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

/* 设置区域 */
.settings-section {
    background: var(--bg-light);
    padding: 1.25rem;
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
}

.settings-section h3 {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.settings-section h3 i {
    color: var(--primary-color);
}

.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 0.75rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-primary);
    transition: var(--transition-fast);
}

.checkbox-label:hover {
    color: var(--primary-color);
}

.checkbox-label input[type="checkbox"] {
    width: 1.1rem;
    height: 1.1rem;
    accent-color: var(--primary-color);
    cursor: pointer;
}

/* 进度条 */
.progress-section {
    margin-bottom: 1.5rem;
}

.progress-bar {
    height: 8px;
    background: var(--bg-light);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), #4facfe);
    border-radius: 4px;
    transition: width 0.3s ease;
    width: 0%;
}

.progress-text {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

/* Markdown输出 */
.preview-section {
    margin-bottom: 1.5rem;
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.preview-header h3 {
    font-size: 1rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.preview-header h3 i {
    color: var(--primary-color);
}

.preview-actions {
    display: flex;
    gap: 0.5rem;
}

.btn {
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    transition: var(--transition-normal);
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: #0056b3;
}

.btn-secondary {
    background: var(--bg-light);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: var(--border-color);
}

.markdown-output {
    width: 100%;
    min-height: 300px;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.6;
    resize: vertical;
    background: var(--bg-white);
}

.markdown-output:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* HTML预览 */
.html-preview-section {
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.html-preview-content {
    padding: 1.5rem;
    max-height: 500px;
    overflow-y: auto;
    background: var(--bg-white);
}

.html-preview-content h1,
.html-preview-content h2,
.html-preview-content h3,
.html-preview-content h4,
.html-preview-content h5,
.html-preview-content h6 {
    margin-top: 1.5em;
    margin-bottom: 0.5em;
    font-weight: 600;
    line-height: 1.3;
}

.html-preview-content h1 { font-size: 1.8rem; }
.html-preview-content h2 { font-size: 1.5rem; }
.html-preview-content h3 { font-size: 1.25rem; }
.html-preview-content h4 { font-size: 1.1rem; }

.html-preview-content p {
    margin-bottom: 1em;
    line-height: 1.7;
}

.html-preview-content table {
    border-collapse: collapse;
    width: 100%;
    margin: 1em 0;
}

.html-preview-content th,
.html-preview-content td {
    border: 1px solid var(--border-color);
    padding: 0.5em 0.75em;
    text-align: left;
}

.html-preview-content th {
    background: var(--bg-light);
    font-weight: 600;
}

.html-preview-content code {
    background: var(--bg-light);
    padding: 0.2em 0.4em;
    border-radius: 3px;
    font-family: var(--font-mono);
    font-size: 0.9em;
}

.html-preview-content pre {
    background: #f5f5f5;
    padding: 1em;
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: 1em 0;
}

.html-preview-content pre code {
    background: none;
    padding: 0;
}

.html-preview-content img {
    max-width: 100%;
    height: auto;
}

.html-preview-content blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: 1em;
    margin: 1em 0;
    color: var(--text-secondary);
}

/* Toast提示 */
#toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    padding: 0.75rem 1.5rem;
    background: var(--text-primary);
    color: white;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 9999;
}

#toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* 功能特点网格 */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.feature-item {
    display: flex;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    transition: var(--transition-normal);
}

.feature-item:hover {
    background: var(--bg-white);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.feature-item h3 {
    font-size: 1.05rem;
    color: var(--text-primary);
    margin-bottom: 0.35rem;
}

.feature-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* 使用教程步骤 */
.tutorial-steps {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.step {
    display: flex;
    gap: 1.25rem;
}

.step-number {
    width: 2.5rem;
    height: 2.5rem;
    background: linear-gradient(135deg, var(--primary-color), #4facfe);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 1.05rem;
    color: var(--text-primary);
    margin-bottom: 0.35rem;
}

.step-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* 场景网格 */
.scenario-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
    margin-top: 1.5rem;
}

.scenario-item {
    padding: 1.25rem;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition-normal);
}

.scenario-item:hover {
    background: var(--bg-white);
    box-shadow: var(--shadow-md);
}

.scenario-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.scenario-item h3 {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 0.35rem;
}

.scenario-item p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* 知识科普 */
.glossary-item {
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.glossary-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.glossary-item h3 {
    font-size: 1.05rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.glossary-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.glossary-example {
    margin-top: 0.75rem;
    padding: 0.75rem;
    background: var(--bg-light);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

.glossary-example strong {
    color: var(--text-primary);
}

/* 常见错误 */
.error-item {
    margin-bottom: 1.25rem;
    padding: 1rem;
    background: var(--bg-light);
    border-radius: var(--radius-md);
}

.error-question {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.error-icon {
    font-size: 1.1rem;
}

.error-cause,
.error-solution {
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 0.35rem;
}

.error-cause {
    color: var(--danger-color);
}

.error-solution {
    color: var(--success-color);
}

/* FAQ */
.faq-item {
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.faq-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.faq-question {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.faq-answer {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 相关工具 */
.related-tools {
    background: var(--bg-light);
    padding: 3rem 0;
}

.related-title {
    text-align: center;
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
}

.related-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.related-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.related-item i {
    font-size: 1.75rem;
    color: var(--primary-color);
}

.related-item h4 {
    font-size: 0.95rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.related-item p {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* 响应式 */
@media (max-width: 992px) {
    .related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .feature-grid,
    .scenario-grid {
        grid-template-columns: 1fr;
    }
    
    .related-grid {
        grid-template-columns: 1fr;
    }
    
    .input-tabs {
        flex-wrap: wrap;
    }
    
    .tab-btn {
        flex: 1;
        justify-content: center;
        min-width: 100px;
    }
    
    .settings-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .url-input-section {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .settings-grid {
        grid-template-columns: 1fr;
    }
    
    .preview-header {
        flex-direction: column;
        gap: 0.75rem;
        align-items: flex-start;
    }
    
    .preview-actions {
        width: 100%;
    }
    
    .preview-actions .btn {
        flex: 1;
        justify-content: center;
    }
}

/* 动画 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state p {
    font-size: 0.95rem;
}