/* ============================================================
   Matchic — Language Switcher v2 Styles
   ============================================================ */

/* ===== DROPDOWN CONTAINER ===== */
.lang-dropdown {
  position: relative;
  display: inline-block;
}

/* ===== TRIGGER BUTTON ===== */
.lang-trigger {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--surface);
  border: var(--glass-border) solid var(--border);
  border-radius: var(--glass-radius-sm);
  font-family: var(--font-family);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out-cubic);
  user-select: none;
  min-width: 80px;
  justify-content: space-between;
}

.lang-trigger:hover {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-alpha);
}

.lang-trigger:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.lang-trigger:active {
  transform: scale(0.98);
}

.lang-flag {
  font-size: 1.2em;
  line-height: 1;
}

.lang-code {
  text-transform: uppercase;
  font-weight: var(--font-semibold);
  letter-spacing: 0.5px;
}

.lang-arrow {
  transition: transform var(--duration-fast) var(--ease-out-cubic);
  color: var(--text-secondary);
}

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

/* ===== DROPDOWN MENU ===== */
.lang-menu {
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  min-width: 220px;
  max-height: 300px;
  overflow-y: auto;
  background: var(--surface);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: var(--glass-border) solid var(--border);
  border-radius: var(--glass-radius);
  box-shadow: 0 10px 40px var(--shadow);
  list-style: none;
  margin: 0;
  padding: var(--space-2);
  z-index: 1000;
  
  /* Animation */
  opacity: 0;
  transform: translateY(-8px) scale(0.96);
  transition: opacity var(--duration-fast) var(--ease-out-cubic),
              transform var(--duration-fast) var(--ease-out-cubic);
}

.lang-menu:not([hidden]) {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* ===== MENU ITEM ===== */
.lang-option {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--glass-radius-sm);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out-cubic);
  outline: none;
}

.lang-option:hover,
.lang-option:focus-visible {
  background: var(--primary-alpha);
}

.lang-option:focus-visible {
  box-shadow: inset 0 0 0 2px var(--primary);
}

.lang-option.active {
  background: var(--primary-alpha);
  font-weight: var(--font-semibold);
}

.lang-option.active .lang-option-native {
  color: var(--primary);
}

.lang-option-flag {
  font-size: 1.4em;
  line-height: 1;
  flex-shrink: 0;
}

.lang-option-native {
  flex: 1;
  font-weight: var(--font-medium);
  color: var(--text);
}

.lang-option-name {
  font-size: var(--text-xs);
  color: var(--text-secondary);
  font-weight: var(--font-normal);
}

.lang-check {
  flex-shrink: 0;
  margin-left: auto;
}

/* ===== MOBILE BOTTOM SHEET ===== */
@media (max-width: 768px) {
  .lang-menu {
    position: fixed;
    top: auto;
    bottom: 0;
    left: 0;
    right: 0;
    min-width: 100%;
    max-height: 50vh;
    border-radius: var(--glass-radius) var(--glass-radius) 0 0;
    border-bottom: none;
    transform: translateY(100%);
    padding: var(--space-4);
  }
  
  .lang-menu:not([hidden]) {
    transform: translateY(0);
  }
  
  .lang-menu::before {
    content: '';
    display: block;
    width: 40px;
    height: 4px;
    background: var(--border);
    border-radius: 2px;
    margin: 0 auto var(--space-4);
  }
  
  /* Backdrop */
  .lang-menu--mobile::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: -1;
    pointer-events: none;
  }
}

/* ===== NAV INTEGRATION ===== */
@media (max-width: 768px) {
  .lang-trigger {
    padding: var(--space-2);
    min-width: auto;
  }
  
  .lang-code {
    display: none;
  }
}

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
  .lang-menu,
  .lang-arrow {
    transition: none;
  }
  
  .lang-menu {
    transform: none;
  }
}

/* ===== SCREEN READER ONLY ===== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}