/**
 * 项目资产分类筛选样式
 * 符合代码规范：<400行
 * 使用独立前缀 project-asset-category-* 保证面板独立性
 * 收起态触发器固定 120px；展开菜单按内容变宽，完整显示选项文案
 */

/* 分类筛选容器 */
.project-asset-category-filter {
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
}

/* 隐藏原生 select，仅作数据与 value 同步（自定义面板负责交互展示） */
.project-asset-category-select-native {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
    opacity: 0;
    pointer-events: none;
}

.project-asset-category-dropdown {
    position: relative;
    flex-shrink: 0;
}

/* 收起态：固定 120px，文案过长省略号 + title 悬停可看全 */
.project-asset-category-trigger {
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
    width: 120px;
    height: 36px;
    padding: 0 10px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 13px;
    font-family: "Microsoft YaHei", "微软雅黑", "SimSun", "宋体", "Arial", sans-serif;
    cursor: pointer;
    outline: none;
    transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
}

.project-asset-category-trigger:hover {
    border-color: var(--border-secondary);
    background: var(--bg-hover);
}

.project-asset-category-trigger:focus {
    border-color: var(--text-accent);
    box-shadow: 0 0 0 2px rgba(107, 140, 255, 0.2);
}

.project-asset-category-trigger[aria-expanded="true"] {
    border-color: var(--text-accent);
}

.project-asset-category-trigger-label {
    flex: 1;
    min-width: 0;
    text-align: left;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.project-asset-category-trigger-chevron {
    flex-shrink: 0;
    color: var(--text-secondary, #999);
    transition: transform 0.2s ease;
}

.project-asset-category-trigger[aria-expanded="true"] .project-asset-category-trigger-chevron {
    transform: rotate(180deg);
}

/* 展开菜单：宽度随内容，不限制为 120px */
.project-asset-category-menu {
    position: absolute;
    z-index: 50;
    top: calc(100% + 4px);
    right: 0;
    margin: 0;
    padding: 4px 0;
    list-style: none;
    min-width: 100%;
    width: max-content;
    max-width: min(420px, calc(100vw - 32px));
    background: var(--bg-card, #1e1e1e);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md, 0 8px 24px rgba(0, 0, 0, 0.45));
    max-height: 280px;
    overflow-y: auto;
}

.project-asset-category-menu-item {
    display: block;
    width: 100%;
    padding: 8px 14px;
    margin: 0;
    border: none;
    background: transparent;
    color: var(--text-primary);
    font-size: 13px;
    font-family: "Microsoft YaHei", "微软雅黑", "SimSun", "宋体", "Arial", sans-serif;
    text-align: left;
    cursor: pointer;
    white-space: nowrap;
    box-sizing: border-box;
}

.project-asset-category-menu-item:hover,
.project-asset-category-menu-item:focus {
    background: var(--bg-hover);
    outline: none;
}

.project-asset-category-menu-item[aria-selected="true"] {
    color: var(--text-accent, #6b8cff);
    background: rgba(107, 140, 255, 0.12);
}

/* 分类筛选加载状态（可选，用于未来扩展） */
.project-asset-category-filter-loading {
    position: relative;
    pointer-events: none;
}

.project-asset-category-filter-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    right: 10px;
    transform: translateY(-50%);
    width: 14px;
    height: 14px;
    border: 2px solid var(--border-primary);
    border-top-color: var(--text-accent);
    border-radius: 50%;
    animation: project-asset-category-filter-spin 0.6s linear infinite;
}

@keyframes project-asset-category-filter-spin {
    to {
        transform: translateY(-50%) rotate(360deg);
    }
}