/**
 * 应用工具导航栏主样式
 * 符合代码规范：<400行
 * 与项目面板保持统一的深色主题风格
 * 使用独立前缀 app-tool- 保证面板独立性
 */

/* 应用工具主面板 */
.app-tool-panel {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    font-family: "Microsoft YaHei", "微软雅黑", "SimSun", "宋体", "Arial", sans-serif;
}

/* 应用工具布局 - 融合一体容器 */
.app-tool-layout {
    display: flex;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: #141414;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-primary);
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(20px);
    position: relative;
}

.app-tool-layout:hover {
    border-color: var(--border-secondary);
    box-shadow: var(--shadow-lg);
}

/* 内容区域 */
.app-tool-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: transparent;
    position: relative;
    min-width: 0;
    width: 100%;
    height: 100%;
}

/* 搜索区域头部 */
.app-tool-header {
    padding: var(--spacing-md) var(--spacing-xl);
    border-bottom: 1px solid var(--border-primary);
    background: var(--bg-secondary);
    flex-shrink: 0;
    z-index: 10;
    backdrop-filter: blur(20px);
}

/* 搜索容器 */
.app-tool-search-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex: 1;
    max-width: 100%;
    flex-wrap: wrap;
}

/* 搜索输入框 */
.app-tool-search-input {
    flex: 1;
    padding: 10px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    font-family: "Microsoft YaHei", "微软雅黑", "SimSun", "宋体", "Arial", sans-serif;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    outline: none;
    min-width: 200px;
}

.app-tool-search-input::placeholder {
    color: var(--text-muted);
}

.app-tool-search-input:hover {
    border-color: var(--border-secondary);
}

.app-tool-search-input:focus {
    border-color: var(--text-accent);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* 分类下拉选择器容器 */
.app-tool-category-filter {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* 分类下拉选择器 */
.app-tool-category-select {
    padding: 10px 32px 10px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    font-family: "Microsoft YaHei", "微软雅黑", "SimSun", "宋体", "Arial", sans-serif;
    cursor: pointer;
    outline: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    min-width: 140px;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='12' viewBox='0 0 24 24' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M6 9l6 6 6-6' stroke='%23999' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 14px;
}

.app-tool-category-select:hover {
    border-color: var(--border-secondary);
    background-color: var(--bg-hover);
}

.app-tool-category-select:focus {
    border-color: var(--text-accent);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* 搜索按钮 */
.app-tool-search-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 20px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    font-family: "Microsoft YaHei", "微软雅黑", "SimSun", "宋体", "Arial", sans-serif;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    flex-shrink: 0;
}

.app-tool-search-btn:hover {
    background: var(--bg-hover);
    border-color: var(--border-secondary);
    transform: translateY(-1px);
}

.app-tool-search-btn:active {
    transform: translateY(0);
}

.app-tool-search-btn svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
}

/* 卡片窗口区域 */
.app-tool-body {
    flex: 1;
    padding: var(--spacing-xl);
    overflow-y: auto;
    overflow-x: hidden;
    background: transparent;
    min-height: 0;
    max-height: 100%;
    position: relative;
}

/* 无数据占位内容 */
.app-tool-placeholder {
    width: 100%;
    height: 100%;
    min-height: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-family: "Microsoft YaHei", "微软雅黑", "SimSun", "宋体", "Arial", sans-serif;
}

.app-tool-placeholder .placeholder-icon {
    font-size: 80px;
    margin-bottom: var(--spacing-lg);
    opacity: 0.4;
}

.app-tool-placeholder .placeholder-text {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.app-tool-placeholder .placeholder-hint {
    font-size: 14px;
    color: var(--text-muted);
}

/* 工具卡片网格容器 - 缩小卡片尺寸 */
.app-tool-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: var(--spacing-md);
    width: 100%;
}

/* 滚动条样式 - 与项目面板保持一致 */
.app-tool-content::-webkit-scrollbar,
.app-tool-body::-webkit-scrollbar {
    width: 6px;
}

.app-tool-content::-webkit-scrollbar-track,
.app-tool-body::-webkit-scrollbar-track {
    background: transparent;
}

.app-tool-content::-webkit-scrollbar-thumb,
.app-tool-body::-webkit-scrollbar-thumb {
    background: var(--border-primary);
    border-radius: 3px;
}

.app-tool-content::-webkit-scrollbar-thumb:hover,
.app-tool-body::-webkit-scrollbar-thumb:hover {
    background: var(--border-secondary);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .app-tool-search-container {
        flex-direction: column;
    }
    
    .app-tool-search-input {
        width: 100%;
        min-width: 100%;
    }
    
    .app-tool-category-select {
        width: 100%;
        min-width: 100%;
    }
    
    .app-tool-search-btn {
        width: 100%;
    }
    
    .app-tool-card-grid {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
        gap: var(--spacing-md);
    }
}