/* css/language.css
   2025/2026 language picker: globe chip in header + searchable modal popover/sheet.
   Works with js/lang-switcher.js
*/

:root {
  --lang-z: 1200;
}

/* Header chip (button content is injected by lang-switcher.js) */
.lang-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface-2) 82%, transparent);
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  transition: transform var(--t-fast) var(--ease), background var(--t) var(--ease), border-color var(--t) var(--ease);
}

.lang-btn:hover {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
  background: color-mix(in srgb, var(--surface-2) 70%, transparent);
}

.lang-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent);
}

.lang-btn .lang-icon {
  font-size: 16px;
  line-height: 1;
}

.lang-btn .lang-label {
  white-space: nowrap;
}

.lang-btn .lang-caret {
  opacity: 0.8;
  font-size: 12px;
  transform: translateY(1px);
}

/* Modal overlay */
.lang-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--lang-z);
  display: none;
}

.lang-overlay.open {
  display: block;
}

.lang-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(8px);
  opacity: 0;
  animation: langFadeIn 160ms ease forwards;
}

@keyframes langFadeIn {
  to { opacity: 1; }
}

body.modal-open {
  overflow: hidden;
}

.lang-panel {
  position: absolute;
  top: 110px;
  inset-inline: 0;
  margin-inline: auto;
  width: min(560px, calc(100% - 28px));
  border-radius: 18px;
  border: 1px solid color-mix(in srgb, var(--border) 78%, transparent);
  background: color-mix(in srgb, var(--surface-1) 88%, transparent);
  box-shadow: 0 30px 80px rgba(0,0,0,0.5);
  backdrop-filter: blur(18px);
  padding: 14px;
  transform: translateY(-12px);
  opacity: 0;
  animation: langPop 180ms ease forwards;
}

@keyframes langPop {
  to { transform: translateY(0); opacity: 1; }
}

/* Mobile sheet style */
.lang-panel.sheet {
  top: auto;
  bottom: 0;
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
  width: 100%;
  margin: 0;
  padding-bottom: 18px;
}

.lang-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 4px 4px 10px;
}

.lang-title-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

.lang-globe {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 24%, transparent);
}

.lang-title {
  font-size: 14px;
  font-weight: 800;
  color: var(--text);
}

.lang-subtitle {
  font-size: 12px;
  color: var(--muted);
  margin-top: 2px;
}

.lang-close {
  width: 38px;
  height: 38px;
  padding: 0;
  display: inline-grid;
  place-items: center;
  border-radius: 14px;
}

.lang-search-wrap {
  padding: 2px 4px 10px;
}

.lang-search {
  width: 100%;
  padding: 11px 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface-2) 78%, transparent);
  color: var(--text);
  outline: none;
  transition: border-color var(--t) var(--ease), box-shadow var(--t) var(--ease);
}

.lang-search:focus {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}

.lang-search::placeholder {
  color: color-mix(in srgb, var(--muted) 85%, transparent);
}

.lang-list {
  list-style: none;
  margin: 0;
  padding: 0 4px 4px;
  max-height: min(380px, 60vh);
  overflow: auto;
}

.lang-item {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 12px 12px;
  border-radius: 14px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}

.lang-item:hover {
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  transform: translateY(-1px);
}

.lang-item.active {
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  border-color: color-mix(in srgb, var(--accent) 35%, transparent);
}

.lang-flag {
  font-size: 18px;
  text-align: center;
}

.lang-name {
  font-weight: 700;
  font-size: 13px;
}

.lang-native {
  font-size: 11px;
  color: var(--muted);
}

.lang-empty {
  padding: 14px 12px;
  color: var(--muted);
  text-align: center;
}

/* Scrollbar */
.lang-list::-webkit-scrollbar {
  width: 7px;
}
.lang-list::-webkit-scrollbar-track {
  background: transparent;
}
.lang-list::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--muted) 25%, transparent);
  border-radius: 999px;
}