/* ============================================
   eLearning — i18n Styles (cloned from hibraar-solutions)
   Language Toggle + Mobile Overlay + RTL base
   ============================================ */

/* ── Token bridge: reference tokens → eLearning palette ── */
:root {
  --color-navy: #22252A;
  --color-navy-rgb: 34, 37, 42;
  --color-gold: #16A34A;
  --color-gold-rgb: 22, 163, 74;
  --color-text: #22252A;
  --color-text-secondary: #5B6270;
  --color-bg-secondary: #FFFFFF;
  --color-neutral-200: #E7DFCF;
  --radius-full: 9999px;
  --radius-xl: 16px;
  --text-body: 1rem;
  --text-body-sm: 0.875rem;
  --text-body-xs: 0.75rem;
  --weight-medium: 500;
  --weight-semibold: 600;
  --space-md: clamp(0.75rem, 1vw, 1rem);
  --space-lg: clamp(1rem, 1.5vw, 1.5rem);
  --space-3xl: clamp(2rem, 3vw, 4rem);
  --duration-fast: 200ms;
  --ease-default: cubic-bezier(0.4, 0, 0.2, 1);
  --z-overlay: 300;
}

html[data-theme="dark"] {
  --color-navy: #DCE1EC;
  --color-navy-rgb: 220, 225, 236;
  --color-text: #DCE1EC;
  --color-text-secondary: #94A0B8;
  --color-bg-secondary: #141B2E;
  --color-neutral-200: #2A3350;
}

/* ── RTL base (both supported languages are LTR today; kept for parity) ── */
.rtl {
  direction: rtl;
  text-align: right;
}

/* ── Loading indicator (top bar) ── */
body.i18n-loading::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-navy));
  z-index: 10000;
  animation: i18n-progress 1.5s ease-in-out;
}

@keyframes i18n-progress {
  0% { width: 0%; }
  50% { width: 80%; }
  100% { width: 100%; }
}

/* ── Language Toggle ── */
.lang-toggle {
  position: relative;
  z-index: calc(var(--z-overlay) + 10);
}

.lang-toggle__btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  background: none;
  border: 1px solid rgba(var(--color-navy-rgb), 0.1);
  border-radius: var(--radius-md, 8px);
  cursor: pointer;
  font-family: inherit;
  font-size: var(--text-body-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text);
  transition: all var(--duration-fast) var(--ease-default);
  white-space: nowrap;
}

.lang-toggle__globe-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.lang-toggle__btn:hover {
  background: rgba(var(--color-navy-rgb), 0.05);
  border-color: rgba(var(--color-navy-rgb), 0.2);
}

.lang-toggle__current {
  display: flex;
  align-items: center;
  gap: 6px;
}

.lang-toggle__arrow {
  width: 14px;
  height: 14px;
  transition: transform var(--duration-fast) var(--ease-default);
}

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

/* ── Dropdown ── */
.lang-toggle__dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 200px;
  background: var(--color-bg-secondary, #fff);
  border: 1px solid rgba(var(--color-navy-rgb), 0.1);
  border-radius: var(--radius-lg, 12px);
  box-shadow: 0 10px 40px rgba(var(--color-navy-rgb), 0.15);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--duration-fast) var(--ease-default);
  overflow: visible;
  z-index: 99999;
}

.rtl .lang-toggle__dropdown {
  right: auto;
  left: 0;
}

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

.lang-toggle__item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 14px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: var(--text-body-sm);
  color: var(--color-text);
  text-align: left;
  transition: background var(--duration-fast) var(--ease-default);
}

.rtl .lang-toggle__item {
  text-align: right;
}

.lang-toggle__item:hover {
  background: rgba(var(--color-navy-rgb), 0.05);
}

.lang-toggle__item.active {
  background: rgba(var(--color-gold-rgb), 0.1);
  color: var(--color-gold);
  font-weight: var(--weight-semibold);
}

.lang-toggle__flag-img {
  width: 22px;
  height: 16px;
  border-radius: 2px;
  object-fit: cover;
  box-shadow: 0 1px 2px rgba(0,0,0,0.2);
  flex-shrink: 0;
}

.lang-toggle__label {
  flex: 1;
}

.lang-toggle__item.active .lang-toggle__label::after {
  content: ' \2713';
  font-size: 12px;
}

/* ── Sidebar Language Toggle ── */
.lang-toggle--sidebar {
  width: 100%;
  margin-bottom: var(--space-md);
}

.lang-toggle--sidebar .lang-toggle__btn {
  width: 100%;
  justify-content: center;
  padding: 12px;
  background: rgba(var(--color-navy-rgb), 0.05);
}

.lang-toggle--sidebar .lang-toggle__dropdown {
  width: 100%;
  right: 0;
}

/* ── Mobile — Globe icon only, overlay for selection ── */
@media (max-width: 767px) {
  .lang-toggle__btn {
    padding: 6px 8px;
    font-size: var(--text-body-xs);
    gap: 4px;
  }

  .lang-toggle__current {
    gap: 4px;
  }

  .lang-toggle__globe-icon {
    width: 18px;
    height: 18px;
  }

  .lang-toggle__arrow {
    width: 12px;
    height: 12px;
  }

  /* Hide desktop dropdown on mobile — body overlay is used instead */
  .lang-toggle__dropdown {
    display: none !important;
  }
}

/* ── Tablet Adjustments ── */
@media (min-width: 768px) and (max-width: 1023px) {
  .lang-toggle__dropdown {
    right: -10px;
  }
}

/* ── Dark Mode Adjustments ── */
[data-theme="dark"] .lang-toggle__btn {
  color: var(--color-navy);
  border-color: var(--color-neutral-200);
}

[data-theme="dark"] .lang-toggle__globe-icon {
  stroke: var(--color-navy);
}

[data-theme="dark"] .lang-toggle__arrow {
  stroke: var(--color-navy);
}

[data-theme="dark"] .lang-toggle__btn:hover {
  background: rgba(var(--color-gold-rgb), 0.1);
  border-color: var(--color-gold);
}

[data-theme="dark"] .lang-toggle__dropdown {
  background: #1a2035;
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] .lang-toggle__item {
  color: #e5e7eb;
}

[data-theme="dark"] .lang-toggle__item:hover {
  background: rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .lang-toggle__item.active {
  background: rgba(34, 197, 94, 0.15);
  color: #4ADE80;
}

/* ── Print ── */
@media print {
  .lang-toggle {
    display: none !important;
  }
}

/* ============================================
   MOBILE OVERLAY — Body-level (no backdrop-filter issue)
   ============================================ */
.lang-overlay {
  position: fixed;
  inset: 0;
  z-index: 999999;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.lang-overlay.open {
  opacity: 1;
  visibility: visible;
}

.lang-overlay__sheet {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-bg-secondary, #fff);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  transform: translateY(100%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  max-height: 75vh;
  overflow-y: auto;
  padding-bottom: env(safe-area-inset-bottom, 0);
}

.lang-overlay.open .lang-overlay__sheet {
  transform: translateY(0);
}

.lang-overlay__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid rgba(var(--color-navy-rgb), 0.08);
  position: sticky;
  top: 0;
  background: var(--color-bg-secondary, #fff);
  z-index: 1;
}

.lang-overlay__title {
  font-size: var(--text-body);
  font-weight: var(--weight-semibold);
  color: var(--color-text);
}

.lang-overlay__close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--color-text-secondary, #6b7280);
  cursor: pointer;
  border-radius: var(--radius-full);
  transition: background var(--duration-fast);
}

.lang-overlay__close:hover {
  background: rgba(var(--color-navy-rgb), 0.05);
}

.lang-overlay__list {
  padding: 8px 0;
}

.lang-overlay__item {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 14px 20px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: var(--text-body);
  color: var(--color-text);
  text-align: left;
  transition: background var(--duration-fast);
}

.lang-overlay__item:hover {
  background: rgba(var(--color-navy-rgb), 0.04);
}

.lang-overlay__item.active {
  background: rgba(var(--color-gold-rgb), 0.1);
  color: var(--color-gold);
  font-weight: var(--weight-semibold);
}

.lang-overlay__flag {
  width: 32px;
  height: 22px;
  border-radius: 3px;
  object-fit: cover;
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
  flex-shrink: 0;
}

.lang-overlay__label {
  flex: 1;
}

.lang-overlay__item.active .lang-overlay__label::after {
  content: ' \2713';
  font-size: 14px;
}

/* Dark mode overlay */
[data-theme="dark"] .lang-overlay {
  background: rgba(0, 0, 0, 0.7);
}

[data-theme="dark"] .lang-overlay__sheet {
  background: #1a2035;
}

[data-theme="dark"] .lang-overlay__header {
  background: #1a2035;
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .lang-overlay__item {
  color: #e5e7eb;
}

[data-theme="dark"] .lang-overlay__item:hover {
  background: rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .lang-overlay__item.active {
  background: rgba(34, 197, 94, 0.15);
  color: #4ADE80;
}

[data-theme="dark"] .lang-overlay__title {
  color: #ffffff;
}

[data-theme="dark"] .lang-overlay__close {
  color: #9ca3af;
}