/*
 * 粒粒学公共单选下拉
 *
 * 仅增强带 data-llx-single-select 的容器。原生 select 是唯一数据源，
 * 组件成功初始化并添加 is-enhanced 后才会隐藏原生控件。
 */
.llx-single-select[data-llx-single-select] {
  --llx-single-select-height: 36px;
  --llx-single-select-border: #dbe3ee;
  --llx-single-select-border-active: #9eb8ef;
  --llx-single-select-background: #fff;
  --llx-single-select-color: #475569;
  --llx-single-select-menu-width: max-content;
  --llx-single-select-menu-max-width: 420px;
  position: relative;
  min-width: 0;
}

.llx-single-select[data-llx-single-select] > .llx-single-select-native {
  width: 100%;
}

.llx-single-select[data-llx-single-select].is-enhanced > .llx-single-select-native {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  margin: -1px !important;
  padding: 0 !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  clip-path: inset(50%) !important;
  border: 0 !important;
  opacity: 0 !important;
  pointer-events: none !important;
  white-space: nowrap !important;
}

.llx-single-select-trigger {
  display: flex;
  width: 100%;
  height: var(--llx-single-select-height);
  min-width: 0;
  padding: 0 11px;
  align-items: center;
  justify-content: space-between;
  gap: 9px;
  border: 1px solid var(--llx-single-select-border);
  border-radius: 6px;
  background: var(--llx-single-select-background);
  color: var(--llx-single-select-color);
  font: inherit;
  line-height: 1;
  text-align: left;
  cursor: pointer;
  outline: none;
  transition: border-color .18s ease, box-shadow .18s ease, background-color .18s ease;
}

.llx-single-select-trigger:hover,
.llx-single-select.is-open .llx-single-select-trigger {
  border-color: var(--llx-single-select-border-active);
}

.llx-single-select-trigger:focus-visible {
  border-color: var(--llx-single-select-border-active);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, .08);
}

.llx-single-select-trigger:disabled {
  border-color: #e6ebf2;
  background: #f4f6f9;
  color: #aab3c0;
  cursor: not-allowed;
}

.llx-single-select-trigger-label {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.llx-single-select-trigger-arrow {
  width: 14px;
  height: 14px;
  flex: 0 0 14px;
  color: #94a3b8;
  transition: transform .18s ease;
}

.llx-single-select.is-open .llx-single-select-trigger-arrow {
  transform: rotate(180deg);
}

.llx-single-select-options {
  position: absolute;
  z-index: 90;
  top: calc(100% + 6px);
  left: 0;
  display: none;
  width: var(--llx-single-select-menu-width);
  min-width: 100%;
  max-width: min(var(--llx-single-select-menu-max-width), calc(100vw - 24px));
  max-height: 280px;
  padding: 6px;
  overflow-x: hidden;
  overflow-y: auto;
  border: 1px solid #dfe5ed;
  border-radius: 6px;
  background: #fff;
  box-shadow: 0 12px 28px rgba(15, 23, 42, .12);
  overscroll-behavior: contain;
}

.llx-single-select[data-placement="bottom-end"] .llx-single-select-options,
.llx-single-select.is-auto-end .llx-single-select-options {
  right: 0;
  left: auto;
}

.llx-single-select.is-open .llx-single-select-options {
  display: block;
}

.llx-single-select-option {
  display: flex;
  width: 100%;
  min-height: 34px;
  padding: 7px 9px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 0;
  border-radius: 4px;
  background: #fff;
  color: #536076;
  font: inherit;
  line-height: 1.45;
  text-align: left;
  cursor: pointer;
  outline: none;
}

.llx-single-select-option:hover,
.llx-single-select-option:focus-visible,
.llx-single-select-option.is-active {
  background: #f4f7fc;
  color: #2563eb;
}

.llx-single-select-option.is-selected {
  background: #eef4ff;
  color: #2563eb;
  font-weight: 700;
}

.llx-single-select-option:disabled {
  background: #fff;
  color: #b5bdc9;
  cursor: not-allowed;
}

.llx-single-select-option-label {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.llx-single-select-option-check {
  width: 14px;
  flex: 0 0 14px;
  color: #2563eb;
  font-size: 13px;
  font-weight: 800;
  text-align: center;
}

.llx-single-select-group-label {
  padding: 8px 9px 4px;
  color: #94a3b8;
  font-size: 11px;
  font-weight: 700;
}

@media (max-width: 560px) {
  .llx-single-select-options {
    max-width: calc(100vw - 32px);
  }
}