/* ============================================================
 * BioWay i18n Styles
 * 语言切换器、Toast、印地语等非拉丁字体
 * ============================================================ */

/* ---------- 语言切换器 ---------- */
.lang-switcher {
  position: relative;
  display: inline-flex;
  align-items: center;
  margin-right: 12px;
}

.lang-switcher-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  cursor: pointer;
  transition: all 0.2s var(--ease-out);
  white-space: nowrap;
}

.lang-switcher-btn:hover,
.lang-switcher-btn:focus {
  border-color: var(--color-gold);
  color: var(--color-gold);
  outline: none;
}

.lang-switcher-btn .flag {
  font-size: 14px;
  line-height: 1;
}

.lang-switcher-btn .chev {
  width: 10px;
  height: 10px;
  transition: transform 0.2s var(--ease-out);
}

.lang-switcher-btn[aria-expanded="true"] .chev {
  transform: rotate(180deg);
}

.lang-switcher-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 200px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 6px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all 0.2s var(--ease-out);
}

.lang-switcher-menu.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-option {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 12px;
  background: transparent;
  border: none;
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  text-align: left;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background 0.15s var(--ease-out);
}

.lang-option:hover,
.lang-option:focus {
  background: rgba(201, 169, 97, 0.1);
  outline: none;
}

.lang-option.active {
  color: var(--color-gold);
  background: rgba(201, 169, 97, 0.08);
}

.lang-option .flag {
  font-size: 18px;
}

.lang-option .native-name {
  font-weight: 500;
}

.lang-option .check {
  margin-left: auto;
  color: var(--color-gold);
  opacity: 0;
  transition: opacity 0.2s;
}

.lang-option.active .check {
  opacity: 1;
}

/* 在 Header 中紧凑版 */
.header-actions .lang-switcher {
  margin-right: 8px;
}

/* 移动端适配 */
@media (max-width: 768px) {
  .lang-switcher-btn .current-name {
    display: none;
  }
  .lang-switcher-menu {
    right: -10px;
    min-width: 180px;
  }
}

/* ---------- i18n Switch Toast ---------- */
#i18n-switch-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  max-width: 480px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-gold);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--color-text);
  animation: toastSlideUp 0.4s var(--ease-out);
  display: flex;
  align-items: center;
  gap: 12px;
}

#i18n-switch-toast.hiding {
  animation: toastSlideDown 0.3s var(--ease-out) forwards;
}

@keyframes toastSlideUp {
  from { transform: translate(-50%, 20px); opacity: 0; }
  to { transform: translate(-50%, 0); opacity: 1; }
}

@keyframes toastSlideDown {
  from { transform: translate(-50%, 0); opacity: 1; }
  to { transform: translate(-50%, 20px); opacity: 0; }
}

.i18n-toast-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.i18n-toast-switch {
  background: var(--color-gold);
  color: var(--color-bg);
  border: none;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: var(--text-xs);
  cursor: pointer;
  transition: all 0.2s var(--ease-out);
}

.i18n-toast-switch:hover {
  background: #d4b674;
}

.i18n-toast-dismiss {
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  font-size: 20px;
  cursor: pointer;
  padding: 0;
  width: 24px;
  height: 24px;
  line-height: 1;
}

.i18n-toast-dismiss:hover {
  color: var(--color-text);
}

/* ---------- 多语言字体支持 ---------- */
/* 印地语 - 天城体 */
html[lang="hi"] body,
html[lang="hi"] [data-i18n] {
  font-family: 'Inter', 'Noto Sans Devanagari', sans-serif;
}

html[lang="hi"] h1,
html[lang="hi"] h2,
html[lang="hi"] h3 {
  font-family: 'Cormorant Garamond', 'Noto Sans Devanagari', serif;
}

/* 中文 - 思源黑体 */
html[lang="zh"] body,
html[lang="zh"] [data-i18n] {
  font-family: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  letter-spacing: 0.01em;
}

html[lang="zh"] h1,
html[lang="zh"] h2,
html[lang="zh"] h3 {
  font-family: 'Cormorant Garamond', 'Noto Serif SC', 'STSong', serif;
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* 印尼语 / 他加禄语 - 已用 Latin 字母，Inter 已覆盖 */
html[lang="id"] body,
html[lang="tl"] body {
  font-family: 'Inter', sans-serif;
}

/* 多语言文本溢出保护 */
html[lang="zh"] [data-i18n],
html[lang="hi"] [data-i18n],
html[lang="id"] [data-i18n],
html[lang="tl"] [data-i18n] {
  word-break: break-word;
  overflow-wrap: anywhere;
}

/* 数字规格 mono 字体：所有语言都用 JetBrains Mono */
.mono,
.metric-value {
  font-family: 'JetBrains Mono', monospace !important;
  font-feature-settings: "tnum" 1, "lnum" 1;
}

/* 印地语 / 中文下数字也应保持 mono */
html[lang="hi"] .mono,
html[lang="zh"] .mono {
  font-family: 'JetBrains Mono', monospace !important;
}

/* ---------- FOUC 防护 ---------- */
html:not([data-i18n-ready]) {
  visibility: hidden;
  opacity: 0;
}

html[data-i18n-ready] {
  visibility: visible;
  opacity: 1;
  transition: opacity 0.2s var(--ease-out);
}

/* ---------- 防止长语言切换器在移动端溢出 ---------- */
@media (max-width: 480px) {
  .header-actions .lang-switcher-btn {
    padding: 6px;
  }
  .header-actions .lang-switcher-btn .chev {
    display: none;
  }
}