/* ========================================
   語言選擇器專用樣式
   美化多國語系下拉式選單
   ======================================== */

/* 容器調整，讓選單與標題對齊 */
#language-selector {
  display: flex;
  align-items: center;
}

@media (max-width: 576px) {
  #language-selector {
    width: 100%;
    justify-content: flex-start;
    margin-top: 0.5rem;
  }
}

/* 美化下拉式選單本體 */
.language-selector {
  min-width: 180px;
  max-width: 220px;
  padding: 0.35rem 2.5rem 0.35rem 0.85rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.85);
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
  font-weight: 500;
  font-size: 0.9rem;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  cursor: pointer;
  transition:
    background-color 0.2s ease,
    box-shadow 0.2s ease,
    transform 0.1s ease;

  /* 移除預設箭頭，使用自訂圖示 */
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23ffffff'%3E%3Cpath d='M4 6l4 4 4-4z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.85rem center;
  background-size: 0.7rem;
}

.language-selector::-ms-expand {
  display: none;
}

/* 淺色背景下的樣式微調（避免文字太亮） */
header.bg-light .language-selector,
body.bg-light .language-selector {
  background: #ffffff;
  color: #333333;
  border-color: rgba(0, 0, 0, 0.1);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23333333'%3E%3Cpath d='M4 6l4 4 4-4z'/%3E%3C/svg%3E");
}

.language-selector:hover {
  background: rgba(255, 255, 255, 0.18);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
  transform: translateY(-1px);
}

.language-selector:focus {
  outline: none;
  box-shadow: 0 0 0 0.15rem rgba(255, 255, 255, 0.7);
}

/* 避免選項文字過於擁擠，旗幟與文字保留間距 */
.language-selector option {
  padding: 0.35rem 0.75rem;
  color: #333333;
  background-color: #ffffff;
}

@media (max-width: 576px) {
  .language-selector {
    min-width: 150px;
    max-width: 190px;
    font-size: 0.85rem;
  }
}