/* ==========================================================================
   Component: datpro_language_selector
   Single flag control + dropdown. Order is fixed: Tiếng Việt, 中文, English.
   Used in the header, the mobile drawer and the footer.
   ========================================================================== */

.dp-lang {
  position: relative;
  flex: none;
}

.dp-lang__toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.4375rem;
  height: 40px;
  padding: 0 0.625rem;
  border-radius: var(--r-sm);
  color: var(--dp-text-body);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.dp-lang__toggle:hover {
  background: var(--dp-surface);
  color: var(--dp-blue);
}

.dp-flag {
  flex: none;
  width: 22px;
  height: 16px;
  border-radius: 2px;
  box-shadow: 0 0 0 1px rgba(10, 27, 51, 0.08) inset;
  overflow: hidden;
}

.dp-lang__code {
  line-height: 1;
}

.dp-lang__chevron {
  flex: none;
  width: 14px;
  height: 14px;
  color: var(--dp-text-subtle);
  transition: transform var(--dur) var(--ease);
}

.dp-lang__toggle[aria-expanded="true"] .dp-lang__chevron {
  transform: rotate(180deg);
}

/* ---------- Dropdown ------------------------------------------------------ */

.dp-lang__menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: var(--z-dropdown);
  min-width: 184px;
  padding: 0.375rem;
  background: #fff;
  border: 1px solid var(--dp-border);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease),
    visibility var(--dur) var(--ease);
}

.dp-lang__menu.is-open {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.dp-lang__option {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  width: 100%;
  padding: 0.5rem 0.625rem;
  border-radius: var(--r-sm);
  color: var(--dp-text-body);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  text-align: left;
  transition: background-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}

.dp-lang__option:hover {
  background: var(--dp-surface);
  color: var(--dp-text);
}

.dp-lang__option[aria-selected="true"] {
  color: var(--dp-blue);
  font-weight: var(--fw-semibold);
}

.dp-lang__label {
  flex: 1;
  min-width: 0;
}

.dp-lang__check {
  flex: none;
  width: 15px;
  height: 15px;
  opacity: 0;
}

.dp-lang__option[aria-selected="true"] .dp-lang__check {
  opacity: 1;
}

/* Drop upward when used inside the footer */
.dp-lang--up .dp-lang__menu {
  top: auto;
  bottom: calc(100% + 8px);
  transform: translateY(6px);
}

.dp-lang--up .dp-lang__menu.is-open {
  transform: none;
}

/* Full-width variant for the mobile drawer */
.dp-lang--block,
.dp-lang--block .dp-lang__toggle {
  width: 100%;
}

.dp-lang--block .dp-lang__toggle {
  justify-content: flex-start;
  height: 48px;
  border: 1px solid var(--dp-border-strong);
}

.dp-lang--block .dp-lang__chevron {
  margin-left: auto;
}

.dp-lang--block .dp-lang__menu {
  left: 0;
  right: 0;
}