/**
 * 任务系统面板样式
 * 独立CSS，使用 task-system- 前缀
 * 符合代码规范：<400行
 */

/* ========== 主面板布局 ========== */
.task-system-panel {
    display: flex;
    width: 100%;
    height: 100%;
    background-color: var(--bg-primary, #1a1a1a);
    font-family: "Microsoft YaHei", "微软雅黑", "SimSun", "宋体", "Arial", sans-serif;
    color: var(--text-primary, #e0e0e0);
    overflow: hidden;
    border-radius: 12px;
    border: 1px solid var(--border-secondary, #404040);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* ========== 左侧导航栏区域 ========== */
.task-system-sidebar {
    width: 260px;
    min-width: 260px;
    height: 100%;
    background-color: var(--bg-secondary, #242424);
    border-right: 1px solid var(--border-primary, #333333);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border-radius: 12px 0 0 12px;
}

/* 导航栏顶部 */
.task-system-sidebar-header {
    padding: 16px;
    border-bottom: 1px solid var(--border-primary, #333333);
    background-color: var(--bg-secondary, #242424);
}

/* 创建按钮下拉菜单容器 */
.task-system-create-dropdown {
    position: relative;
    width: 100%;
}

/* 创建按钮 */
.task-system-create-btn {
    width: 100%;
    height: 36px;
    padding: 0 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: linear-gradient(135deg, #4a9eff 0%, #357abd 100%);
    color: #ffffff;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.task-system-create-btn:hover {
    background: linear-gradient(135deg, #5ba9ff 0%, #4688cc 100%);
    box-shadow: 0 2px 8px rgba(74, 158, 255, 0.3);
}

.task-system-create-btn:active {
    transform: scale(0.98);
}

.task-system-create-icon {
    flex-shrink: 0;
}

.task-system-dropdown-icon {
    flex-shrink: 0;
    margin-left: auto;
    transition: transform 0.2s ease;
}

.task-system-create-dropdown.active .task-system-dropdown-icon {
    transform: rotate(180deg);
}

/* 下拉菜单 */
.task-system-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    background-color: var(--bg-card, #2a2a2a);
    border: 1px solid var(--border-primary, #333333);
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    overflow: hidden;
    z-index: 1000;
    display: none;
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.2s ease;
}

.task-system-create-dropdown.active .task-system-dropdown-menu {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

/* 菜单项 */
.task-system-menu-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    font-size: 13px;
    color: var(--text-primary, #e0e0e0);
    cursor: pointer;
    transition: all 0.2s ease;
}

.task-system-menu-item:hover {
    background-color: var(--bg-hover, #333333);
    color: var(--text-accent, #4a9eff);
}

.task-system-menu-item svg {
    flex-shrink: 0;
    color: var(--text-secondary, #999999);
    transition: color 0.2s ease;
}

.task-system-menu-item:hover svg {
    color: var(--text-accent, #4a9eff);
}

/* 导航列表内容区域 */
.task-system-sidebar-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 16px;
}

/* 自定义滚动条 */
.task-system-sidebar-content::-webkit-scrollbar {
    width: 6px;
}

.task-system-sidebar-content::-webkit-scrollbar-track {
    background-color: transparent;
}

.task-system-sidebar-content::-webkit-scrollbar-thumb {
    background-color: var(--border-primary, #333333);
    border-radius: 3px;
}

.task-system-sidebar-content::-webkit-scrollbar-thumb:hover {
    background-color: var(--border-secondary, #444444);
}

/* 导航占位区域 */
.task-system-nav-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 40px 20px;
    text-align: center;
    color: var(--text-muted, #666666);
}

.task-system-nav-placeholder svg {
    color: var(--text-muted, #666666);
    opacity: 0.5;
}

.task-system-nav-placeholder p {
    margin: 0;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary, #999999);
}

.task-system-nav-placeholder span {
    font-size: 12px;
    color: var(--text-muted, #666666);
}

/* ========== 右侧内容区域 ========== */
.task-system-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border-radius: 0 12px 12px 0;
}

/* 顶部搜索区域 */
.task-system-header {
    padding: 16px 24px;
    background-color: var(--bg-secondary, #242424);
    border-bottom: 1px solid var(--border-primary, #333333);
}

/* 搜索容器 */
.task-system-search-container {
    display: flex;
    align-items: center;
    gap: 12px;
    max-width: 600px;
}

/* 搜索输入框 */
.task-system-search-input {
    flex: 1;
    height: 36px;
    padding: 0 12px;
    background-color: var(--bg-tertiary, #1a1a1a);
    border: 1px solid var(--border-primary, #333333);
    border-radius: 6px;
    color: var(--text-primary, #e0e0e0);
    font-size: 13px;
    font-family: "Microsoft YaHei", "微软雅黑", "SimSun", "宋体", "Arial", sans-serif;
    transition: all 0.2s ease;
}

.task-system-search-input::placeholder {
    color: var(--text-muted, #666666);
}

.task-system-search-input:focus {
    outline: none;
    border-color: var(--text-accent, #4a9eff);
    background-color: var(--bg-secondary, #242424);
}

/* 搜索按钮 */
.task-system-search-btn {
    height: 36px;
    padding: 0 16px;
    display: flex;
    align-items: center;
    gap: 6px;
    background-color: var(--bg-tertiary, #1a1a1a);
    border: 1px solid var(--border-primary, #333333);
    border-radius: 6px;
    color: var(--text-primary, #e0e0e0);
    font-size: 13px;
    font-family: "Microsoft YaHei", "微软雅黑", "SimSun", "宋体", "Arial", sans-serif;
    cursor: pointer;
    transition: all 0.2s ease;
}

.task-system-search-btn:hover {
    background-color: var(--bg-hover, #333333);
    border-color: var(--text-accent, #4a9eff);
    color: var(--text-accent, #4a9eff);
}

.task-system-search-btn:active {
    transform: scale(0.98);
}

.task-system-search-btn svg {
    flex-shrink: 0;
}

/* 主内容区域 */
.task-system-body {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 24px;
    background-color: var(--bg-primary, #1a1a1a);
}

/* 自定义滚动条 */
.task-system-body::-webkit-scrollbar {
    width: 8px;
}

.task-system-body::-webkit-scrollbar-track {
    background-color: transparent;
}

.task-system-body::-webkit-scrollbar-thumb {
    background-color: var(--border-primary, #333333);
    border-radius: 4px;
}

.task-system-body::-webkit-scrollbar-thumb:hover {
    background-color: var(--border-secondary, #444444);
}

/* 内容占位区域 */
.task-system-content-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;
    padding: 80px 40px;
    text-align: center;
    color: var(--text-muted, #666666);
    min-height: 400px;
}

.task-system-content-placeholder svg {
    color: var(--text-muted, #666666);
    opacity: 0.3;
}

.task-system-content-placeholder h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 500;
    color: var(--text-secondary, #999999);
}

.task-system-content-placeholder p {
    margin: 0;
    font-size: 14px;
    color: var(--text-muted, #666666);
}

/* ========== 响应式设计 ========== */
@media (max-width: 1024px) {
    .task-system-sidebar {
        width: 220px;
        min-width: 220px;
    }
    
    .task-system-body {
        padding: 16px;
    }
}

@media (max-width: 768px) {
    .task-system-sidebar {
        width: 200px;
        min-width: 200px;
    }
    
    .task-system-header {
        padding: 12px 16px;
    }
    
    .task-system-body {
        padding: 12px;
    }
}