.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;
}

.lang-switcher {
  position: relative;
  flex-shrink: 0;
}

.lang-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  min-width: 56px;
  min-height: 42px;
  padding: .55rem .8rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: linear-gradient(180deg, rgba(22,32,48,.92) 0%, rgba(14,22,32,.96) 100%);
  color: var(--text);
  font-family: var(--font);
  font-size: .95rem;
  font-weight: 700;
  white-space: nowrap;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.04), 0 10px 24px rgba(0,0,0,.22);
  transition: border-color var(--trans), background var(--trans), color var(--trans), box-shadow var(--trans), transform var(--trans);
}

.lang-btn:hover {
  border-color: var(--accent);
  background: linear-gradient(180deg, rgba(22,32,48,.98) 0%, rgba(16,25,36,1) 100%);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.04), 0 0 0 1px rgba(61,255,160,.08), 0 12px 28px rgba(0,0,0,.28);
}

.lang-btn:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(61,255,160,.14), inset 0 1px 0 rgba(255,255,255,.04), 0 12px 28px rgba(0,0,0,.28);
}

.lang-btn-flag {
  font-size: 1.15rem;
  line-height: 1;
}

.lang-btn-code {
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .04em;
  line-height: 1;
  color: var(--text);
}

.lang-btn-caret {
  color: var(--text2);
  transition: transform var(--trans), color var(--trans);
}

.lang-switcher.open .lang-btn {
  border-color: rgba(61,255,160,.4);
  background: linear-gradient(180deg, rgba(22,32,48,.98) 0%, rgba(16,25,36,1) 100%);
  box-shadow: 0 0 0 3px rgba(61,255,160,.1), 0 14px 32px rgba(0,0,0,.3);
}

.lang-switcher.open .lang-btn-caret {
  color: var(--accent);
  transform: rotate(180deg);
}

.lang-menu {
  position: absolute;
  top: calc(100% + .65rem);
  right: 0;
  min-width: 176px;
  padding: .4rem;
  border: 1px solid rgba(61,255,160,.14);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(14,22,32,.98) 0%, rgba(8,13,20,.99) 100%);
  box-shadow: 0 18px 48px rgba(0,0,0,.45);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-6px);
  transition: opacity var(--trans), transform var(--trans), visibility var(--trans);
  z-index: 300;
}

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

.lang-option {
  display: flex;
  align-items: center;
  gap: .7rem;
  padding: .7rem .8rem;
  border: 1px solid transparent;
  border-radius: 10px;
  color: var(--text2);
  font-size: .92rem;
  font-weight: 600;
  text-decoration: none;
  transition: background var(--trans), color var(--trans), border-color var(--trans);
}

.lang-option:hover,
.lang-option:focus-visible {
  background: rgba(22,32,48,.92);
  color: var(--text);
  border-color: rgba(61,255,160,.14);
  outline: none;
}

.lang-option-flag {
  font-size: 1.15rem;
  line-height: 1;
}

.lang-option-label {
  flex: 1;
}

.lang-option.active {
  color: var(--accent);
  font-weight: 700;
  background: rgba(61,255,160,.08);
  border-color: rgba(61,255,160,.16);
}

.lang-option.active::after {
  content: '•';
  margin-left: auto;
  font-size: 1rem;
  color: var(--accent);
}

/* ── Light theme overrides ─────────────────────────────────────────────────── */
[data-theme="light"] .lang-btn {
  background: linear-gradient(180deg, rgba(232,237,233,.95) 0%, rgba(220,227,222,.98) 100%);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.5), 0 2px 8px rgba(0,0,0,.06);
}
[data-theme="light"] .lang-btn:hover {
  background: linear-gradient(180deg, rgba(220,227,222,.98) 0%, rgba(210,218,212,1) 100%);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.5), 0 0 0 1px rgba(13,153,86,.12), 0 4px 12px rgba(0,0,0,.08);
}
[data-theme="light"] .lang-switcher.open .lang-btn {
  background: linear-gradient(180deg, rgba(220,227,222,.98) 0%, rgba(210,218,212,1) 100%);
  border-color: rgba(13,153,86,.4);
  box-shadow: 0 0 0 3px rgba(13,153,86,.08), 0 4px 12px rgba(0,0,0,.08);
}
[data-theme="light"] .lang-menu {
  background: linear-gradient(180deg, rgba(244,247,245,.99) 0%, rgba(236,241,237,.99) 100%);
  border-color: rgba(13,153,86,.18);
  box-shadow: 0 8px 24px rgba(0,0,0,.08);
}
[data-theme="light"] .lang-option:hover,
[data-theme="light"] .lang-option:focus-visible {
  background: rgba(13,153,86,.06);
  border-color: rgba(13,153,86,.12);
}
[data-theme="light"] .lang-option.active {
  background: rgba(13,153,86,.08);
  border-color: rgba(13,153,86,.16);
}

@media (max-width: 860px) {
  .lang-switcher {
    width: 100%;
  }

  .lang-btn {
    width: 100%;
    justify-content: space-between;
  }

  .lang-menu {
    left: 0;
    right: 0;
    min-width: 0;
  }
}