/**
 * multi-select-filter.css - 多选筛选组件样式
 * 配合 MultiSelectFilterEngine.js 使用
 */

/* ─── 容器 ─── */
.multi-select-wrapper {
  position: relative;
  display: inline-block;
  vertical-align: middle;
}

/* ─── 触发器 ─── */
.multi-select-trigger {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  min-width: 100px;
  min-height: 28px;
  padding: 4px 8px;
  border: 1px solid #d9d9d9;
  border-radius: 6px;
  background: #fff;
  cursor: pointer;
  font-size: 13px;
  color: #333;
  line-height: 1.4;
  transition:
    border-color 0.2s,
    box-shadow 0.2s;
  user-select: none;
  white-space: nowrap;
  overflow: hidden;
}
.multi-select-trigger:hover {
  border-color: #1890ff;
}
.multi-select-trigger.open {
  border-color: #1890ff;
  box-shadow: 0 0 0 2px rgba(24, 144, 255, 0.2);
}
.multi-select-trigger:focus {
  outline: none;
  border-color: #1890ff;
  box-shadow: 0 0 0 2px rgba(24, 144, 255, 0.2);
}

/* ─── 占位文本 ─── */
.multi-select-placeholder {
  color: #999;
  font-size: 13px;
}

/* ─── 已选标签 ─── */
.multi-select-tag {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 1px 6px;
  background: #e6f7ff;
  border: 1px solid #91d5ff;
  border-radius: 4px;
  font-size: 12px;
  color: #1890ff;
  white-space: nowrap;
  max-width: 90px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.multi-select-tag-remove {
  cursor: pointer;
  margin-left: 2px;
  font-size: 14px;
  line-height: 1;
  opacity: 0.6;
}
.multi-select-tag-remove:hover {
  opacity: 1;
  color: #ff4d4f;
}

/* ─── 计数 ─── */
.multi-select-count {
  font-size: 12px;
  color: #999;
  flex-shrink: 0;
}

/* ─── 箭头 ─── */
.multi-select-arrow {
  font-size: 10px;
  color: #999;
  margin-left: auto;
  flex-shrink: 0;
  transition: transform 0.2s;
}
.multi-select-trigger.open .multi-select-arrow {
  transform: rotate(180deg);
}

/* ─── 下拉面板 ─── */
.multi-select-dropdown {
  position: fixed;
  z-index: 1050;
  min-width: 180px;
  max-height: 320px;
  background: #fff;
  border: 1px solid #d9d9d9;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
  display: flex;
  flex-direction: column;
}

/* ─── 选项区域 ─── */
.multi-select-options {
  max-height: 240px;
  overflow-y: auto;
  padding: 4px 0;
}

/* ─── 选项行 ─── */
.multi-select-option {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  cursor: pointer;
  font-size: 13px;
  color: #333;
  transition: background 0.15s;
  margin: 0;
  font-weight: normal;
}
.multi-select-option:hover {
  background: #f5f5f5;
}
.multi-select-option.selected {
  background: #e6f7ff;
}
.multi-select-option.select-all {
  border-bottom: 1px solid #f0f0f0;
  margin-bottom: 4px;
}
.multi-select-option input[type="checkbox"] {
  flex-shrink: 0;
  cursor: pointer;
}
.multi-select-option span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ─── 底部按钮栏 ─── */
.multi-select-footer {
  display: flex;
  gap: 8px;
  padding: 8px 12px;
  border-top: 1px solid #f0f0f0;
  justify-content: flex-end;
}
.multi-select-btn {
  padding: 4px 12px;
  border-radius: 4px;
  border: 1px solid #d9d9d9;
  background: #fff;
  cursor: pointer;
  font-size: 12px;
  color: #333;
  transition: all 0.2s;
}
.multi-select-btn:hover {
  border-color: #1890ff;
  color: #1890ff;
}
.multi-select-btn-ok {
  background: #1890ff;
  border-color: #1890ff;
  color: #fff;
}
.multi-select-btn-ok:hover {
  background: #40a9ff;
  border-color: #40a9ff;
  color: #fff;
}

/* ─── 表格列筛选中的紧凑适配 ─── */
th .multi-select-wrapper {
  width: 100%;
}
th .multi-select-trigger {
  width: 100%;
  min-width: 0;
  min-height: 24px;
  padding: 2px 6px;
  font-size: 11px;
  border-radius: 4px;
  box-sizing: border-box;
}
th .multi-select-tag {
  font-size: 10px;
  padding: 0 4px;
  max-width: 50px;
}
th .multi-select-placeholder {
  font-size: 11px;
}

/* ─── filter-bar 中的适配 ─── */
.filter-item .multi-select-wrapper {
  min-width: 128px;
}
.filter-item .multi-select-trigger {
  min-width: 128px;
  min-height: 30px;
  padding: 5px 8px;
}

/* ─── 滚动条美化 ─── */
.multi-select-options::-webkit-scrollbar {
  width: 6px;
}
.multi-select-options::-webkit-scrollbar-thumb {
  background: #d9d9d9;
  border-radius: 3px;
}
.multi-select-options::-webkit-scrollbar-thumb:hover {
  background: #bfbfbf;
}